ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Springer  (181,640)
  • Blackwell Publishing Ltd  (11,808)
  • 1965-1969  (156,151)
  • 1950-1954  (37,297)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Contribution a l'étude morphologique et biologique d'Aphomia sociella L. (Lepidoptera, Heteroneura, Pyralidoidea, Pyralididæ), parasite des nids de bourdons (Hymenoptera, Apoidea, Bombus Latr.) (1967)
    Springer
    Insectes sociaux 14 (1967), S. 57-72 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary In this work, the author gives a morphological description ofAphomia sociella at different stages of its life cycle, that permits the identification of these moths among the sub-family ofGalleriinæ. The depredatory behaviour of wax-moth caterpillars inside the Bumble-Bees' nest has been studied. The larvae ofAphomia sociella are dangerous for Bumble-Bees' nests, not only because they ruin the combs and feed on wax, but also because they inhibit the growth of the offspring. The wax-moth larvae build up a network of tunnels of sticky secreted threads, under cover of which the voracious larvae seek their food. The female of bumble-bee wax-moth lays her eggs in masses, so the newly hatched caterpillars begin their lives in close contact with one another. The tendency that impels the female to lay in masses instead of singly is the first requirement of gregarious behaviour. This gregarious behaviour in caterpillars lasts until later larval stages.
    Notes: Conclusions et résumé Dans ce travail, nous avons donné une description morphologique d'Aphomia sociella aux différents stades de son cycle biologique, permettant ainsi l'identification de ces Insectes au sein de la sous-famille desGalleriinæ. Nous avons également abordé une étude du comportement d'Aphomia sociella, en particulier le comportement prédateur des chenilles à l'intérieur du nid de Bourdons. Les chenilles d'Aphomia sociella sont dangereuses pour les nids de Bourdons, non seulement par le fait qu'elles détruisent les cellules cireuses et se nourrissent des substances accumulées, mais aussi parce qu'elles inhibent l'évolution des larves de Bourdons en creusant leurs galeries autour du nid, et en tissant une toile qui retient les larves et les nymphes prisonnières. La femelle d'Aphomia sociella dépose ses œufs en amas, de sorte que les jeunes chenilles nouvellement écloses se trouvent très tôt en contact les unes avec les autres. La tendance qui incite la femelle à déposer ses œufs en groupe, et non isolément, constitute, selonO'Byrne (1937), la condition première du comportement grégaire. Après l'éclosion des œufs, la durée du comportement grégaire dépend du degré d'attraction mutuelle manifesté par les chenilles. L'adaptation de la structure du nid au milieu, en particulier au support, et la possibilité de reformer un groupement lorsque les circonstances l'exigent, suggèrent la faculté des larves d'Aphomia sociella à répondre à la réaction déclenchée par la perception des fils soyeux sécrétés par les autres chenilles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222754
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Le pH intestinal d'un Termite supérieur (Microcerotermes edentatus, Was., amitermitinæ) (1967)
    Springer
    Insectes sociaux 14 (1967), S. 157-160 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary The intestinal pH ofMicrocerotermes edentatus (Amitermitinæ) is very alkaline (〉9,6) up to the first pouch of the hindgut. It then decreases to become almost neutral in the second pouch and slightly acid in the rectum. Among the lower Termites, on the contrary, it is acid in the anterior and middle regions of the digestive tract. These observations may not only be correlated with differences in diet but also with variations in the functions of the malpighian tubules.
    Notes: Résumé Le pH intestinal deMicrocerotermes edentatus (Amitermitinæ) est très alcalin (〉9,6) jusqu'à la première poche de l'intestin postérieur, puis il décroît; dans la seconde poche, il est voisin de la neutralité et devient légèrement acide dans le rectum. Chez les Termites inférieurs, il est au contraire acide dans les régions antérieures et moyennes du tractus. Ces phénomènes peuvent être mis en relation avec des différences de régime alimentaire, mais aussi avec le fonctionnement variable des tubes de Malpighi.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223265
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Note du comité de rédaction (1967)
    Springer
    Insectes sociaux 14 (1967), S. 191-191 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223268
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Sur les pistes et les męurs deLasius fuliginosus Latreille (Hymenoptera formicidæ) (1967)
    Springer
    Insectes sociaux 14 (1967), S. 183-190 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Das Studium einesLasius fuliginosus Nestes während drei jahren hat folgendes gezeigt: 1° Das Ausschwärnem fand in Juni-Juli in Acosse statt im Mai in Düren (Deutschland), Gembloux und Winenne. 2° Die Männchen schwärmen nicht, man kann deren noch bis August im Nest auffinden. 3° Die Ameisen nehmen nicht immer genau Denselben Weg. 4° Das Ameisennest in Acosse ist Während siebend Monaten in Aktivität, von April bis Ende Oktober. 5° Die Wege zur den Nahrungsquellen sind von einem Jahr zum anderen dieselben. Sie werden wàhrend den gleichen Zeit abschnitten, April-Mai-Juni zumPrunus genommen, von Mai bis Oktober zumAhorn, von Juni bis August zur Fichte, von August bis Oktober zumVogelkirschbaum. 6° Die Hypothese eines mehrere jahre anhaltendes gedachtnisses der Ameisen wird vorgeschlagen, sowie eine gewisse maschinelle Aktivität der Arbeiterinnen.
    Notes: Résumé L'étude d'un nid deLasius fuliginosus durant trois années consécutives à montré que: 1° L'essaimage a lieu en juin-juillet à Acosse, en mai à Düren (Allemagne), Gembloux et Winenne. 2° Tous les mâles n'essaiment pas: on en trouve encore dans le nid jusqu'en août. 3° Les fourmis ne suivent pas toujours rigoureusement la même piste. 4° La période d'activité des fourmis du nid d'Acosse s'étale d'avril à la fin d'octobre, soit durant sept mois. 5° Les pistes vers le champ tropophorique sont semblables d'une année à l'autre. Elles sont empruntées aux mêmes époques, vers lePrunus en avril-mai-juin, vers l'Erable de mai à octobre, vers l'Epicea de juin à août, et vers leMerisier d'août jusqu'en octobre. 6° L'hypothèse d'une mémoire pérennante des repères chez les fourmis est prise en considération, mais aussi l'existence d'une certaine automation dans l'activité des ouvrières.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223267
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Un nid deCoptotermes intermedius silvestri (Isoptère rhinotermitidæ) (1967)
    Springer
    Insectes sociaux 14 (1967), S. 281-293 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02252830
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Recherches sur la biologie et l'éthologie deDolichoderus quadripunctatus (L.) (Hym. form. Dolichoderidæ) (1967)
    Springer
    Insectes sociaux 14 (1967), S. 259-280 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary 1 Biology of the lonely queen. — The experimental study of the evolution of these lonely queen, show that, they cannot lived isolated, and they cannot found colonies, alone. 2 Biology of colonies with queen. — We have experimentaly established that: in presence of a queen, the workers cannot lay eggs; the eggs which are present in this type of colonies,are laying only by the queen. The produce of workers of the colony, come from the egg laying of a wingless fecundate queen. Produce of queens: a very little number ofgynes are produced by the colony. They born by fecundated eggs, layed by a wingless queen. These larvaes must be developped, without queen contacts. It is also necessary that a great number of workers are rearing a little number of larvaes. InDolichoderus quadripunctatus species, queens and workers have the same birth: eggs layed by fecundated queens. So, queens development is not apparented to blastogenic facts, but trophogenic facts. Produce of males: we have never obtained males from queens eggs.
    Notes: Résumé Première Partie:Biologie de la femelle isolée. — L'étude expérimentale du devenir des femelles isolées montre que ces individus sont incapables de vivre isolément. La fondation des colonies par femelle isolée n'a jamais été observée. Elle n'a jamais pu être réalisée expérimentalement. Deuxième Partie:Biologie des colonies avec reine. — Nous avons pu établir que: en présence de la reine, les ouvrières ne pondent jamais; la totalité des pontes que l'on rencontre dans ces colonies provient de la ponte des reines. Production d'ouvrières: la totalité des ouvrières produites par la colonic previent de la ponte d'une reine fécondée. Production de femelles: Dolichoderus quadripunctatus se caractérise par la production d'un très petit nombre de femelles ailées. Ces femelles ailées sont issues d'œufs pondus par la femelle fécondée, mais dont les larves évoluent sans contact direct avec la reine. Pour que le futur couvain royal puisse se développer, il est nécessaire qu'un grand nombre d'ouvrières élèvent un petit nombre de larves. ChezDolichoderus quadripunctatus, les femelles ailées et les ouvrières ont donc une même origine: la ponte d'une reine. Le déterminisme de l'apparition des femelles n'est donc pas d'ordre blastogénique, mais d'ordre trophogénique. Production de mâles: enfin, nous n'avons jamais obtenu de mâles à partir de ponte de femelles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02252829
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    La place deCamponotus acvapimensis Mayr (Hyménoptère Formicidæ) dans la chaine alimentaire d'une savane de Cote-d'Ivoire (1967)
    Springer
    Insectes sociaux 14 (1967), S. 313-322 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary The food ofCamponotus acvapimensis is derived from animal predation and gathering of Homopterans and plants. This diversity of origin of nutrition permits it to avoid periods of food scarcity. During the dry season, the vegetation is destroyed by bush fire and the food is primarily based upon predation. In the wet season, many workers of the species search for exsudates of Homopterans. The building behaviour of thisCamponotus only expresses itself in the building of shelters for Homopterans. This species is preyed upon by differents groups such as birds, frogs and lizards. It is parasitized by calcidid Hymenopterans and fungi.
    Notes: Résumé Les sources alimentaires deCamponotus acvapimensis proviennent de la prédation et de la récolte systématique d'exsudats d'Homoptères et de sucs de plantes. Cette diversité d'origine des produits procure à l'espèce une alimentation abondante tout au long de l'année. En saison sèche, pendant la période où la végétation est détruite après le passage des feux de brousse, l'alimentation carnée prédomine. En saison des pluies, où les plantes jeunes abondent et par conséquent les Homoptères, de nombreuses ouvrières partent à la recherche d'exsudats. Le comportement constructeur de ceCamponotus ne se manifeste que dans la construction d'abris pour Homoptères. L'espèce sert elle-même de proie à divers groupes d'animaux (Oiseaux, Batraciens, Reptiles...). Elle est d'autre part victime de divers parasites (Chalcidiens, champignons...).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223680
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Nest architecture and brood development in a neotropical bumblebee,Bombus atratus (1967)
    Springer
    Insectes sociaux 14 (1967), S. 389-413 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223686
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Régulation sociale dans les sociétés orphelines d'Evylæus nigripes (Lep.) (Hym.,Halictidæ) (1968)
    Springer
    Insectes sociaux 15 (1968), S. 31-35 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary In queenless societies ofEvylæus nigripes, one of the workers assumes the rôle of a lost queen: she remains permanently in the nest, lays most of the eggs but does not collect any pollen. Queenless societies of workers resemble polygynous spring associations of this species: both indicate the existence of a group effect.
    Notes: Résumé Dans les sociétés orphelines d'Evylæus nigripes, l'une des ouvrières joue le rôle de reine: elle ne participe pas à la récolte du pollen, demeurant constamment au nid, et assume la plus grande part de la ponte sociale. On établit un parallèle entre les sociétés orphelines et les fondations polygynes de la même espèce: les unes et les autres semblent révéler l'existence d'un effet de groupe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02224891
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    On the division of labour in the primitive termiteZootermopsis nevadensis (Hagen) (1968)
    Springer
    Insectes sociaux 15 (1968), S. 45-50 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé On a trouvé que chezZootermopsis nevadensis, termite relativement primitif, ce sont les nymphes et les plus vieilles larves qui manifestent le plus un comportement constructeur et exécutent la plupart du terrassement et des mouvements oscillatoires. En évoluant de l'état de jeunes larves à celui de nymphes, les termites ont tendance à passer moins de temps en trophallaxie et plus à d'autres activités. Les nymphes du premier stade et les larves du sixième stade sont les plus actives à tous points de vue. En termes de comportement, les larves du sixième stade sont l'équivalent le plus proche d'une caste d'ouvriers. Les nymphes du premier stade peuvent être, en gros, divisés en ceux qui passent beaucoup de temps en trophallaxie et relativement peu à d'autres activités et réciproquement. Cette polarité n'était pas évidente chez les insectes plus jeunes. Les sexués de remplacement passent la plupart de leur temps en trophallaxie et très peu à d'autres activités. La plus grande part de cette trophallaxie a lieu avec les plus jeunes larves, tandis que chez les autres stades elle a lieu avec les sexués de remplacement. Il est suggéré ici que les différences de comportement observées pourraient être importantes dans la détermination et la régulation des castes.
    Notes: Conclusions It has been found that inZootermopsis nevadensis, a relatively primitive termite, the nymphs and older larvae carry out most nest-building behaviour, digging, and oscillatory movements. As they progress from young larvae to nymphs the termites tend to spend less time in trophallaxis and more time in other activities. The first instar nymphs and the sixth instar larvae are the most active in all respects. In terms of behaviour the sixth instar larvae are the nearest equivalent to a worker caste. Insects of the first nymphal instar can be roughly divided into those that spend much time in trophallaxis and relatively little in other activities andvice versa. This polarity was not evident in the younger insects. The replacement reproductives spend most of their time in trophallaxis and very little in other activities. Most of this trophallaxis is with the younger larvae, while most of the trophallaxis of the other instars is with the replacement reproductives. It is suggested that behavioural differences such as those found here may be important in caste determination and regulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02224893
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 11
    Electronic Resource
    Electronic Resource
    Untersuchungen anHarpagoxenus sublævis Nyl. (Hymenoptera, formicidæ) (1968)
    Springer
    Insectes sociaux 15 (1968), S. 89-104 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary 1. Successful mating of ergatoid as well as winged females ofHarpagoxenus sublævis Nyl. with males of strange colonies was observed. The ergatoid females show a special behaviour apparently for attracting the males (fig. 1, 2). It looks similar to the behaviour of young females of some termite species and was not yet known from ants. 2. Colony foundation ofH. sublævis in the well known manner (Viehmeyer, 1921) could be observed in the laboratory; even aged ergatoid females can kill or drive away the inhabitants of a colony of their host speciesLeptothorax acervorum and appropriate their brood a second time. 3. The behaviour ofH. sublævis in slaveraids on colonies of its host species is very plastic. Two types of slave-raids could be observed: 1° The well known shape of «bellicose raid» (Adlerz, 1895;Viehmeyer, 1921), 2° the transportation of entire colonies of the host species into the nest ofHarpagoxenus without any struggle («Eudulosis» according toKutter, 1957, but without killing the queens of the host species). 4. All larvae and pupae even of species of the subgenusLeptothorax are removed out of an attacked nest, but only colonies of the subgenusMychothorax are attacked, never such of the subgenusLeptothorax. 5. Slave-raids can only be induced in certain times of the annual cycle; this is normally the period from about the beginning of June to mid of August when pupae are present both in the nests ofHarpagoxenus and its host species. 6. On the slave-raids theHarpagoxenus workers seem to orient themselves optically, near the entrance of the attacked nest or of their own nest they seem to use their «topochemical sense» running loops.
    Notes: Zusammenfassung 1. Erfolgreiche Kopula von ergatoiden sowie geflügelten Weibchen vonHarpagoxenus sublævis Nyl. mit Männchen fremder Kolonien wurde beobachtet. Die ergatoiden Weibchen zeigen ein besonderes Verhalten, durch das sie wohl die Männchen anlocken (Abb. 1, 2). Es ähnelt dem Verhalten der jungen Weibchen mancher Termiten und ist von Ameisen bisher nicht bekannt. 2. Die Koloniegründung vonH. sublævis erfolgte im Versuch in der bekannten Weise (Viehmeyer, 1921), auch ältere ergatoide Weibchen können nochmals erfolgreich die Bewohner einer Kolonie der WirtsartLeptothorax acervorum töten oder vertreiben und sich deren Brut aneignen. 3. Das Verhalten vonH. sublævis beim Raubzug auf Nester der Wirtsarten ist sehr plastisch. Zwei Typen von «Raubzügen» wurden beobachtet: 1) Die bekannte Form des «kriegerischen Raubzuges» (Adlerz, 1895;Viehmeyer, 1921), 2) kampfloser Transport ganzer Kolonien der Wirtsarten insHarpagoxenus-Nest (Eudulosis nachKutter, 1957, jedoch ohne Abtöten der Königinnen aus den Wirtsameisenvölkern). 4. Alle Larven und Puppen auch fremderLeptothoraxarten werden aus einem überfallenen Nest geraubt, doch werden nur Nester der UntergattungMychothorax, nicht vom SubgenusLeptothorax überfallen. 5. Raubzüge sind nur zu bestimmten Zeiten im Jahrescyclus auszulösen; normalerweise ist dies der Zeitraum von etwa Anfang Juni bis Mitte August, wenn in den Kolonien vonHarpagoxenus und seinen Wirtsarten Puppen vorhanden sind. 6. DieH.-Arbeiterinnen orientieren sich auf den Raubzügen wahrscheinlich zunächst optisch, am Eingang des überfallenen Wirtsameisennestes beginnen sie Suchschleifen zu laufen und scheinen sich des «topochemischen Sinns» zu bedienen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02224896
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    Untersuchungen über die Trophollaxis beiVespa Orientalis L. (1968)
    Springer
    Insectes sociaux 15 (1968), S. 245-250 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary From the foregoing, it is clear that among the Oriental hornet there is absolute inter-dependence between the larvae and the adults, i.e. a symbiosis in whick the function of the adults is to collect food while that of the larvae is to digest it. At the beginning of the season, when the nector which serves as food for the adults is abundant in nature, the inter-dependence is chiefly with respect to protein digestion. With the advent of summer, the is in Israël and countries of a similar climate, a drop in the natural nectar supply, and the interdependence of the workers and larvae becomes obligatory also with respect to carbohydrates.
    Notes: Zusammenfassung Es ist der Beweis erbracht worden, dass die Kolonien vonVespa orientalis L. nicht ohne Larven bestehen können oder genauer gesagt, ohne Speichelabsonderung der Larven. Diese bilden die einzige Quelle von Rohstoffen für den Stickstoffmetabolismus der Arbeiterinnen und für die Königin, da diese selbst über keine Protease verfügen, welche für den Proteinabbau benötigt werden. Von besonderer Wichtigkeit ist dies für die Eiproduktion der Königin. Dieses Ergebnis legt nahe, dass das Gesellschaftsleben der Hornissen wahrscheinlich als eine Symbiose zwischen Erwachsenen und Larven aufzufassen ist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02225848
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    Extraoocytäre Komponenten des Eiwachstums beiApis Mellifica (1968)
    Springer
    Insectes sociaux 15 (1968), S. 271-288 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary Beside a small RNA synthesis in the oocyte nucleus during previtellogenesis the rapid increase of the volume of the egg cell is conditioned by three extraoocytic components: 1. The pinocytotic uptake of heterosynthetic yolk proteins out of the hemolymph. 2. The content of the nurse cells flowing in the egg cell towards the end of oogenesis. 3. The protein synthesis in the oocyte with RNA from the trophocytes. The RNA metabolism of the different cell types in the egg follicle of the queen honey bee is studied by autoradiography. Most of the RNA required for the euplasmic egg growth is coming out of the ca. 48 polyploidic nurse cells. The oocyte nucleus is only supplying small quantities of RNA at the beginning of oogenesis. No RNA delivery occurs from the follicle epithelium. The rate of RNA synthesis in the nuclei of nurse cells in the honey bee is similar to the well known case of Diptera, especially in the house fly. But the RNA transport from the trophocytes into the oocyte in Apis does not reach the velocity found in the dipterian ovary. The main factors responsible for the production of some thousand eggs per day by the queen honey bee are: a) The number (ca. 48) and size of nurse cells. b) The great number of about 360 ovarioles. c) The number of 20–30 egg follicles simultaneously growing in each ovariole.
    Notes: Zusammenfassung In der Oogenese erfolgt das Wachstum der Eizellen nicht allein als von RNS-Syntheseleistungen des Oocytenkerns abhängige euplasmatische Proteinsynthese. Die schnelle Volumenzunahme der Eizellen wird durch drei extraoocytäre Komponenten bedingt: 1. Pinocytäre Aufnahme heterosynthetischer Dotterproteine aus der Haemolymphe. 2. Einfliessen des Nährfachinhaltes in die Oocyte. 3. RNS-Zufuhr aus den Nährzellen in die Oocyte für die dort ablaufende Proteinsynthese. Untersucht wird mit Hilfe autoradiographischer Technik der RNS-Haushalt der Zellelemente der Eifollikel im Bienenovar. Für das Eiwachstum (Euplasma) spielt die RNS-Zufuhr aus dem von 48 polyploiden Nährzellen gebildeten Nährfach die Hauptrolle. Der Oocytenkern synthetisiert nur zu Oogenesebeginn geringe Mengen an RNS. Aus den Follikelzellen erfolgt keine RNS-Abgabe an die Eizelle. Syntheserate und Transportgeschwindigkeit der trophocytären RNS werden im Vergleich zu Literaturangaben über andere Insektenarten diskutiert. Bei der Honigbiene spielt neben der Grösse des Nährfachs vor allem die hohe Zahl von insgesamt rd. 360 Ovariolen und die Menge der in jeder Ovariole gleichzeitig heranwachsenden Follikel (maximal 20–30) eine Rolle als Voraussetzung für die mögliche Produktion von einigen tausend Eiern pro Tag.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02225850
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Avant-propos (1954)
    Springer
    Insectes sociaux 1 (1954), S. 1-2 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223144
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    Recherches sur la biologie et l'éthologie deDolichoderus Quadripunctatus (L) (Hym. Form. Dolichoderidæ) (1968)
    Springer
    Insectes sociaux 15 (1968), S. 375-387 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary In this work we study the biological cycle of the antDolichoderus quadripunctatus, and we have experimentally established the existence of 3 types of calies: -The first calie type (or central nest) in which is living the unic fecondated and wingless queen, with an important population of workers. -The second calies type (or first range peripheric nests) constituted only by workers colonies, in constant relations with the central nest, and also with the third type nests. -The third type calies (named also, workers colonies of the outside range peripheric nests), constituted like the IId type calies, by a worker population. These nests may exchanged ant larvae populations, and workers, with the second type nests. These constant population exchanges, explained the biological cycle of the antDolichoderus quadripunctatus. The colony multiplication is obtained by a particular process: there is no gynes flight. The gynes are fertilized inside the central nest, and after, they are adopted by the workers of an another calie (IId or IIId, type). This special reproduction process may be compared to the swarming of bees.
    Notes: Résumé Dans ce travail, nous avons étudié le cycle biologique de la fourmiDolichoderus quadripunctatus. Nous avons établi expérimentalement l'existence de trois types de calies: -la calie I, ou calie centrale, qui héberge la reine fécondée; -les calies II, ou calies d'ouvrières de la couronne interne, entretenant des relations constantes avec la calie I; -les calies III, ou calies d'ouvrières de la couronne externe, entretenant des relations avec les calies II. Les divers échanges de populations, tant larvaires qu'adultes, permettent d'expliquer le cycle complet de cette espèce. La multiplication des colonies se fait sans envol de sexués femelles, par la capture d'une femelle déjà fécondée dans le nid mère. Ce mode de reproduction très particulier paraît propre à cette espèce. Enfin, nous avons essayé de dégager les conclusions générales de toute cette série de travaux (voirTorossian, 1967a, b, c, d, e, f, 1968), c'est-à-dire de situer le «niveau social» des sociétés deDolichoderus quadripunctatus. Il apparaît que par de multiples caractères (monogynie, habitat arboricole, perte de la phase solitaire, régulation sociale très diversifiée),Dolichoderus quadripunctatus se situe à un niveau très élevé dans l'échelle sociale des Insectes sociaux.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223634
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 16
    Electronic Resource
    Electronic Resource
    Biological observations on primitively social bees (Allodapula) from Cameroon (Hymenoptera, Xylocopinæ) (1968)
    Springer
    Insectes sociaux 15 (1968), S. 423-434 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223640
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 17
    Electronic Resource
    Electronic Resource
    Defence of nest by the female ofXylocopa fenestrata Fab. (Xylocopinae, Hymenoptera) (1968)
    Springer
    Insectes sociaux 15 (1968), S. 419-422 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Les femelles deX. fenestrata possèdent trois moyens de protection de leur progéniture: 1 Régulation de la taille du nid, qui permet d'avoir toujours plus que la moitié de la longueur d'un espace entre nœuds de la tige de bambou, vide entre l'entrée et la dernière cloison. 2 Application d'un répulsif à l'entrée du nid. 3 Attaque de l'intrus en le mordant avec les fortes mandibules ou en le piquant, ou encore en éjectant un liquide répugnant. Ce dernier mode d'attaque n'apparaît que si l'intrus persiste longtemps dans ses tentatives.
    Notes: Summary The female ofXylocopa fenestrata provides protection for her younglings by three ways: (i) regulation of nest size and leaving more than half the length of an internode of a bamboo vacant between the entrance and the last partition, (ii) by applying a repellent at the entrance of her nest, and (iii) by attacking the intruder with her strong mandibles, stinging it and ultimately ejecting a watery repugnant fluid. She resorts to the last method of attack only if annoyance continues for a longtime. The authors are thankful to Dr.A. S. Atwal, Professor of Zoology-Entomology (now, Dean, College of Agriculture) for facilities and criticism of the results and to Dr.G. E. Bohart, United States Department of Agriculture, Utah State University, Logan, for carefully going through the manuscript and making valuable suggestions. They are also thankful to Mr.Surendra Kumar for varied assistance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223639
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 18
    Electronic Resource
    Electronic Resource
    Étude de la distribution des organes sensoriels de l'antenne et de leurs relations possibles avec le comportement chez deux fourmis myrmicines:Myrmica lævinodis Nyl. etAphænogaster gibbosa Latr. récoltées dans la région des Eyzies (1969)
    Springer
    Insectes sociaux 16 (1969), S. 279-312 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Conclusion. Summary Morphological and statistical researches on the sensory equipment of the Ant's antennæ in chapter I of this work have enabled us to interpret some biological phenomena to be enlarged upon in the next chapters. The part played by the champagne cork shaped organs in the trophallaxic behaviour has been shown by ablations ofMyrmica lævinodis Nyl. antennæ.Aphænogaster gibbosa Latr., a species which does not practise the stomodeal exchanges, possesses twice less numerous champagne cork shaped organs on its antennæ. Besides, in those mixed colonies where the two species are bred together,Aphænogaster sometimes receives food fromMyrmica. However the importance of those needful organs should hot be overvalued becauseMyrmica is partly able to practise the trophallaxic behaviour whithout its feelers. Moreover, ifAphænogaster does not exchange food in its nests, this is certainly not due to a defect of its sensory equipment but very likely to the disappearance of the innate behaviour of «agiver», an inductor of the one of a «receiver». ThusAphænogaster's sensory equipment does need to become as evolued as the one ofMyrmica. The importance (very likely of an olfactory nature) of those organs in other behaviours may have caused its persistence onAphænogaster's antennæ. The crop of that ant has grown much less extensible than the one ofMyrmica. It is further to be noticed that the behaviour ofMyrmica as agiver when its feelers have been cut-off proves easier to carry out but more difficult to acquire or to preserve on the evolutive plane, and thus seems to be more basic as regards trophallaxy. Finaly, beyard the knowledge of the sensory qualities, the interest of the myrmecological material lies in that it affords a new method of approach for the study of the determinism of the behaviour.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02309000
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 19
    Electronic Resource
    Electronic Resource
    Ueber die Einwirkung von Begiftungen mit Neuzeitlichen Insektiziden auf Soziale Verhaltensweisen von Ameisen (1954)
    Springer
    Insectes sociaux 1 (1954), S. 139-148 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Dans des séries étendues d'expériences, des ouvrières deLasius niger L. différemment et fortement intoxiquées par les insecticides DDT, HCH, E 605f (Parathion) et Chlordane, furent éprouvées pour savoir si elles étaient encore capables de faire des actions sociales. Il est possible d'expliquer les dérangements chez les Fourmis recueillant despupæ, donnant le fourrage et combattant par des changements de la fonction des mandibules. Ces changements arrivent dans une manière typique pour chaque insecticide. Parce que l'appétence correspondante est reconnaissable, on peut conclure que ne sont pas effectués de changements des fonctions centrales par l'intoxication commençante. Parce que les ouvrières facilement intoxiquées n'acceptent plus de fourrage, les fourrageurs sains offrent le fourrage avec une manière très typique. Il est très difficile d'observer cette manière dans le cas normal, car les Fourmis se donnent à manger tout de suite. Des combats ne furent pas observés entre les compagnons d'un nid chez lesL. niger. Les insecticides examinés sont transmis facilement par le contact entre les Fourmis intoxiquées et leurs compagnons sains.
    Abstract: Summary In extend series of experiments workers ofLasius niger L., poisoned in different stages with the insecticides DDT, HCH, E 605f (Parathion) and Chlordane, were tested if they were still able for doing some works, typical for their social behaviour. The irregular working of ants collectingpupæ, feeding themselves and fighting can be explained above all by changements of the function of the mandibules. Such changements appeare in a manner, typical for each insecticid. Indepedent of the functional changements can be seen an appetence correspondenting with the behaviour. Therefore we can conclude, that primarily no changements of the central functions are effected by the examinated insecticides. Because the hungry but poisoned ants don't eat, the food carring workers offer the food in a typical manner. It's difficult to observe this behaviour in the norm for the workers feed directly themselves. Fightings between poisoned ants of the same colony as a consequence of the higher excitability could not been observed byL. niger. The examinated insecticides are easily transfered by contact between poisoned and unpoisoned ants.
    Notes: C.—Zusammenfassung der Ergebnisse In ausgedehnten Versuchsreihen wurden vonLasius niger L., die durch Begiftung mit den Kontaktinsektiziden DDT, HCH, E 605 und Chlordan verschieden stark geschädigt waren, auf ihre Fähigkeit hin überprüft, einige für ihr soziales Verhalten typische Tätigkeiten noch richtig auszuführen. Die Störungen bei der Ausführung des Puppensammelns, bei der Fütterung und im Kampfverhalten lassen sich neben allgemeinen Lähmungserscheinungen vor allem auf Ausfallserscheinungen in der Mandibelfunktion zurückführen, die in einer für jedes Insektizid charakteristischen Weise eintreten. Da trotz funktioneller Störungen das jeweils entsprechende Appetenzverhalten erkennbar ist, kann man annehmen, dass anfänglich durch die Vergiftung keine zentralen Ausfallserscheinungen bewirkt werden. Wenn leicht begiftete , die kein Futter mehr annehmen, mit gesunden Futterträgerinnen zûsammengebracht werden, zeigt sich auf Seiten der Futterträgerinnen ein ganz eindeutiges Anbietungsverhalten, das sonst wegen der sofort einsetzenden Fütterung nur schwer zu beobachten ist. Kämpfe zwischen Nestgenossen als Folge der durch die Begiftung gesteigerten Erregbarkeit wurden unter der Einwirkung der appl. Gifte beiL. niger nicht beobachtet. Eine Uebertragung der angewendten Insektizide durch Kontakt zwischen begifteten und unbegifteten Tieren findet leicht statt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223036
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 20
    Electronic Resource
    Electronic Resource
    La vie des sections (1954)
    Springer
    Insectes sociaux 1 (1954), S. 191-198 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223040
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 21
    Electronic Resource
    Electronic Resource
    Organogenèse des nerfs et des trachées alaires du termiteCalotermes flavicollis Fab (1954)
    Springer
    Insectes sociaux 1 (1954), S. 177-188 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Vorwort Das Tracheen-System und die thorakalen Nerven des Imago vonCalotermes flavicollis werden beschrieben. Die Tracheen wurden nach der Methode vonWigglesworth und die Nerven mittels einer vonRichard gefundenen Methode gefärbt. Die Entwicklung des Tracheen-und Nerven-Systems durch alle Jugendstadien hindurch werden studiert unter besonderer Berücksichtigung der normalen Entwicklung im Vergleich mit Regressions-Erscheinungen. Schliesslich wird die Anatomie vonCalotermes mit derjenigen von anderen Blattopteroiden, im Besonderen vonPhyllodromia germanica verglichen.
    Abstract: Summary The tracheal system and the nerves of the thorax of the imago ofCalotermes flavicollis are described. The tracheas have been colored by the method ofWigglesworth and the nerve system by the method ofRichard. The entire organo-genesis of the tracheas and nerves through all instars of the development ofCalotermes has been followed. Special attention has been given to the construction of these systems as well as to their regression. The anatomy ofCalotermes is then compared to that of other Blattopteroids, in particular to that ofPhyllodromia germanica.
    Notes: Résumé On décrit les trachées, puis les nerfs thoraciques de l'imago deCalotermes flavicollis. Les trachées ont été colorées par la méthode deWigglesworth, les nerfs par la méthode deRichard. On suit l'organogenèse des trachées et des nerfs au travers des stades du développement deCalotermes en mettant en évidence, d'une part, les phénomènes de construction, d'autre part les phénomènes de régression. On compare l'anatomie deCalotermes à celle d'autres Blattoptéroïdes,Phyllodromia germanica, en particulier.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223038
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 22
    Electronic Resource
    Electronic Resource
    Travaux publiés par des membres de l'union (1954)
    Springer
    Insectes sociaux 1 (1954), S. 199-208 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223041
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 23
    Electronic Resource
    Electronic Resource
    Sulle proprietá antibatteriche del veleno diApis mellifica L. (Hym. Apidæ) (1954)
    Springer
    Insectes sociaux 1 (1954), S. 209-217 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222946
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 24
    Electronic Resource
    Electronic Resource
    Beobachtungen uber die Verhaltensweisen in Künstlich Erzielten Polygynen Hummelvölkern (1965)
    Springer
    Insectes sociaux 12 (1965), S. 105-116 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé 1. D'après mes observations, les reines de bourdons n'ont une conduite agressive qu'au printemps. Pendant sept expériences consécutives, plusieurs reines ont été mises ensemble, pour cette raison, après la phase agressive. Au cours de six expériences, elles ont fondé des nids en commun sans toutefois donner des éclosions en totalité. 2. Les élevages ont donné satisfaction dans des cages à treillis métallique, en pleine lumière du jour. 3. Le début de l'action de la construction du nid chez les peuples polygynes a été décrit. 4. L'époque du développement de l'œuf jusqu'à l'imago est située au-dessus des valeurs moyennes connues jusqu'à ce jour. 5. Chez les peuples polygynes, une participation de travail se laissait remarquer chez les reines, en partie, chez les ouvrières, toujours. 6. Les différents résultats des expériences sont décrits en tableaux analytiques.
    Abstract: Summary 1. Bumblebee queens show an agressive behaviour only in the spring, I have observed. Therefore, several queens were brought together in seven experiments only after this agressive phase. In six of the experiments they started colonies together, but descendants did not hatch in all of them. 2. The cultures were contained in wire cages in full daylight. 3. The beginning of nestbuilding in polygyne colonies is described. 4. The time of development from egg to adult is longer than the average known until now. 5. Some of the queens were observed to show a division of labour; the workers always did so. 6. The results of the experiments are tabulated.
    Notes: Zusammenfassung 1. Hummelköniginnen besitzen nach meinen Beobachtungen nur im Frühjahr ein agressives Verhalten. In sieben Versuchen wurden mehrere Königinnen deshalb erst nach dieser agressiven Phase zusammengesetzt. In sechs Versuchen gründeten sie gemeinsam Nester, doch schlüpften nicht überall Nachkommen. 2. Die Zuchten gelangen in offenen Drahtkäfigen bei vollem Tageslicht. 3. Der Beginn der Nestbautätigkeit in den polygynen Völkern wird beschrieben. 4. Die Entwicklungszeit vom Ei bis zur Imago liegt über den bisher bekannten Durschnittswerten. 5. Eine Arbeitsteilung in den polygynen Völkern liess sich bei den Königinnen teilweise, bei den Arbeiterinnen immer erkennen. 6. Die einzelnen Versuchsergebnisse werden tabellarisch beschrieben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223757
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 25
    Electronic Resource
    Electronic Resource
    Der Einfluss von Umweltbedingungen auf die Bildung von Gynandromorphen bei der HonigbieneApis mellifica L. (1965)
    Springer
    Insectes sociaux 12 (1965), S. 201-218 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Pendant les mois de juillet et d'août, des variations dans le pourcentage des gynandromorphes pondus par une reine issue d'une lignée spécialisée dans la production des gynandromorphes ont été étudiées et des modifications causées par des changements de milieu (la miellée, le nourrissement spéculatif, mise en cage de la reine) observées. Sur 16375 abeilles contrôlées, on a trouvé 2590 (15,9%) gynandromorphes. La stimulation à la ponte avait pour conséquence une augmentation du pourcentage s'élevant à 32,5%, alors que des obstacles mis à la ponte provoquaient une diminution pouvant descendre à 6%. La durée du développement des gynandromorphes oscillait de 21 à 24 jours. L'hypothèse d'une base polygène et d'une prédétermination de l'œuf dans le cas de gynandromorphisme pouvait être confirmée par les résultats des expériences. L'intensité de la ponte stimulée ou freinée par les influences du milieu doit être considérée comme un facteur important de la production des gynandromorphes, à condition d'avoir une base génétique appropriée et une aptitude nourricière suffisante chez les nourrices.
    Abstract: Summary Fluctuations in the percentage of gynandromorphic bees in the brood of one queen from a specific gynandromorphs producing strain were observed and brought into connection with changes in the environment (nectar flow, sugar sirup feeding, caging of the queen). From a total of 16375 checked bees 2590 (15,9%) were gynandromorphs. Stimulation of egg deposition resulted in an increase of the gynandromorph fraction to 32,5%, hampering of the queen during egg deposition was followed by a decrease to 6%. The period of development of gynandromorphic individuals takes from 21–24 days. Further indications for a poligenic basis and a predetermination of the egg in gynandromorph occurrence were given by these experiments. Beside a specific genetic background and sufficient nursing bees for brood rearing one has to regard as an important prerequisite for the production of gynandromorphs the through environmental conditions stimulated or hampered intensity of egg deposition of the queen.
    Notes: Zusammenfassung Schwankungen des Gynandromorphen-Anteils in der Brut einer Königin aus einer speziellen, Gynandromorphen erzeugenden Linie wurden in den Monaten Juli und August untersucht und Verschiebungen auf Grund von Umweltänderungen (Nektarangebot, Reizfütterung, Käfigung der Königin) festgestellt. Von insgesamt 16375 kontrollierten Bienen waren 2590 (15,9%) Gynandromorphen. Anregung zur Eiablage hatte Erhöhung des Gynandromorphen-Anteils auf 32,5% zur Folge, Hemmung der Königin während der Eiablage ein Absinken auf 6,0%. Die Entwicklungsdauer der Gynandromorphen lag zwischen 21 und 24 Tagen. Die Annahme einer polygenen Basis und Prädetermination des Eies bei Gynandromorphismus konnte durch Versuchsergebnisse gefestigt werden. Als wichtige Komponente bei der Erzeugung von Gynandromorphen muss bei entsprechender genetischer Grundlage und ausreichender Pflegefähigkeit der Ammenbienen die durch die Umwelteinflüsse geförderte oder gehemmte Eiablage-Intensität der Königin angesehen werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223891
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 26
    Electronic Resource
    Electronic Resource
    Ontogenèse de l'innervation des organes sensoriels des antennes chezReticulitermes lucifugus santonensis Feyt. (1965)
    Springer
    Insectes sociaux 12 (1965), S. 241-252 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The author has studied the ontogenesis of the innervation of neurosensorial organs on the antennæ ofReticulitermes lucifugus santonensis Feyt. She has found, among the organs with external processussensilla trichoidea (small, medium an big),sensilla basiconica, andsensilla campaniformia. Repartition and variation in number of sensilla during developpement have been described. She describe so 3 sensorial organs without any external processus: 2 chordotonal organs (one in the scapus, the other in the pedicellus). Antennal nerves and tracheas have been followed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223894
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 27
    Electronic Resource
    Electronic Resource
    Recherches sur les Termitoxeniidæ (Diptera) (1965)
    Springer
    Insectes sociaux 12 (1965), S. 273-283 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223897
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 28
    Electronic Resource
    Electronic Resource
    Sull'attivita' di foraggiamento notturna delCamponotus nylanderi Em. (1965)
    Springer
    Insectes sociaux 12 (1965), S. 253-263 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé L'auteur a observé en laboratoire l'activité de récolte des ouvrières deCamponotus nylanderi Em. Au moyen d'observations régulières sur de petites colonies provenant de la Sicile, on prouve que l'activité en question est exclusivement nocturne au moins pendant l'été. Ce rythme d'activité persiste pendant quelques jours en conditions d'éclairage continu et de température irrégulièrement variable.C. nylanderi, est la seule espèce de la myrmecofaune italienne ayant une activité de récolte exclusivement nocturne: c'est un trait de comportement qu'on trouve seulement chez les espèces deCamponotus des déserts chauds, systématiquement voisines deC. nylanderi.
    Abstract: Zusammenfassung Der Verfasser studiert die Sammeltätigkeit der Arbeiterinnen desCamponotus nylanderi Em. Nach systematischer Beobachtung einiger Kolonien, die aus Sizilien stammen, beweist der Verf. dass die sommerliche Sammeltätigkeit ausschliesslich in der Nacht vorsichgeht. Im Herbst kann man auch während des Tages eine geringe Tätigkeit beobachten. Im Dauerlicht (unter uregelmässig wechselnder Temperatur) ist es möglich den Tätigkeitsrhytmus noch für einige Tage zu verfolgen.C. nylanderi ist die einzige Art des italienischen Ameisenfauna, bei der man eine solche nächtliche Aktivität vorfindet. Ein solches Verhalten kommt nur bei verwandtenCamponotus-arten vor, die die warmen Wüsten bewohnen.
    Notes: Riassunto L'Autore, dopo una rivista delle attuali conoscenze sui ritmi di attività delle formiche, studia l'attività di foraggiamento delCamponotus nylanderi Em. e segnala come, almeno nel periodo estivo, essa sia esclusivamente notturna con due massimi di attività (attorno alle ore 21 ed alle ore 2) nella prima e nella seconda metà della notte. In autunno, seppure molto ridotta, l'attività persiste anche nelle ore diurne. In luce costante (e temperatura irregolarmente variabile), l'attività periodica perdura ancora quattro o cinque giorni per poi divenire completamente aritmica. Un'attività notturna quale quella qui illustrata riveste un particolare interesse per la sua unicità in tutta la fauna mirmecologica italiana e per l'analogia che presenta con quella di alcuni affiniCamponotus tropicali.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223895
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 29
    Electronic Resource
    Electronic Resource
    La glande sternale dans l'évolution des Termites (1965)
    Springer
    Insectes sociaux 12 (1965), S. 265-272 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary Glandular swellings of the epidermis in the region of some abdominal sternites (sternal glands) are always present in Termites.Mastotermes darwiniensis shows 3 glands, one on each of the 3rd, 4th and 5th sternites; in the sub-families Stolotermitinæ, Porotermitinæ and Hodotermitinæ, there is a single sternal gland on the 4th sternite; in all other Termites examined, one finds this sternal gland on the 5th sternite. These glands have been observed in every caste, but they regress in functional reproductives, both imaginal and neoteinic.
    Notes: Résumé Des différenciations glandulaires de l'épiderme au niveau de certains sternites abdominaux (glandes sternales) existent chez tous les Termites.Mastotermes darwiniensis possède une glande sur chacun des sternites 3, 4 et 5; dans les sous-familles des Stolotermitinæ, Porotermitinæ, Hodotermitinæ, la glande sternale, unique, est située sur le 4e sternite; tous les autres Termites examinés ont une glande sternale sur le 5e sternite. Ces glandes existent dans toutes les castes, mais subissent une régression chez les sexués fonctionnels, qu'ils soient imaginaux ou néoténiques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223896
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 30
    Electronic Resource
    Electronic Resource
    Anatomie et fonctionnement des stigmates de quelques Fourmis (Hyménoptères Formicidæ) (1965)
    Springer
    Insectes sociaux 12 (1965), S. 285-290 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary Study of six species of ants of the Sahara, compared with three mediterranean species. They have two types of spiracles. 1o Thoracic type: occlusion by two peritremal lids moved by an occlusor muscle. 2o Abdominal type: closed by squeezing the atrium by the occlusor muscle. A dilator muscle. The spiracles, ordinarily closed, keep opened at high temperatures.
    Notes: Résumé Etude de six espèces de fourmis du Sahara et de trois espèces méditerranéennes. Il y a deux types de stigmates. 1o Le type thoracique: fermeture assurée par deux lèvres formées par le péritrême. Un muscle de fermeture. 2o Le type abdominal: fermeture par écrasement de l'atrium sous l'action d'un muscle de fermeture. Un muscle d'ouverture. Les stigmates, normalement fermés, restent ouverts lorsque la température est assez élevée.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223898
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 31
    Electronic Resource
    Electronic Resource
    Caste differentiation inAugochlorella (Hymenoptera, Halictidæ) (1965)
    Springer
    Insectes sociaux 12 (1965), S. 291-308 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé L'auteur met en évidence, chezA. striata etA. persimilis, la présence de deux castes: pondeuses ou reines et femelles non pondeuses du type ouvrières; les castes sont cependant peu différenciées. La présence d'une reine et plus, dans le nid, peut être observée au printemps lorsque tous les individus de la colonie accomplissent les différentes tâches, y compris la récolte du pollen pour les cellules. Après l'apparition, en juin, du premier couvain, il n'y a plus qu'une pondeuse par colonie, celle-ci continue à construire des cellules et à s'en occuper mais ne récolte pas de pollen. Les autres femelles de la colonie, bien que souvent fécondées, ne pondent pas d'œufs mais se chargent des autres activités du nid. La taille moyenne des reines et des femelles non pondeuses diffère au cours de la saison, mais il n'y a pas de différence morphologique importante entre les deux castes.
    Abstract: Zusammenfassung Die Anwesenheit zweier Kasten, die Eierlegerinnen oder Königinnen und die Nichteierlegerinnen oder arbeiterähnlichen Weibchen, inA. striata undA. persimilis, wird bewiesen, obgleich die Kasten undeutlich definiert sind. Eine oder mehr Königinnen können während des Frühlings im Nest sein, zu einer Zeit in der alle Individuen der Kolonie alle Nesttätigkeiten einschliesslich der Pollensammlung ausführen können. Nach der Eklosion der ersten Brut im June, ist nur eine Eierlegerin pro Kolonie da, welche weiter das Nest bewacht und Zellen baut aber keinen Pollen sammelt. Die anderen Weibchen der Kolonie, obgleich abermals gepaart, legen selten Eier. Sie führen jedoch alle weiteren Nestaktivitäten aus. Die Königinnen und Nichteierlegerinnen, sind im Jahresdurchschnitt verschieden gross, aber bedeutende morphologische Unterschiede zwischen den Kasten wurden nicht gefunden.
    Notes: Summary The presence of two castes, the egglayers or queens and the nonegglayers or workerlike females, is demonstrated inA. striata andA. persimilis although the castes are poorly defined. One or more queens may be present in a nest during the spring, at which time all individuals of the colony may perform all nesting activities including the collecting of pollen for the cells. After the first brood has emerged in June, there is only one egglayer per colony, and this individual, although continuing to guard and build cells, does not collect pollen. The other females of the colony, although frequently mated, rarely lay eggs but do carry on all other nesting activities. The queens and nonegglaying females differ in size averaged over the season, but there are no gross morphological differences between the two castes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222719
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 32
    Electronic Resource
    Electronic Resource
    Leptothorax (Mychothorax) kutteri N. Sp., eine sozialparasitische ameise (Hymenoptera, formicidæ) (1965)
    Springer
    Insectes sociaux 12 (1965), S. 327-334 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary Leptothorax (Mychothorax) kutteri n. sp. is described. The new species is living as a workerless social parasite in polygynous nests ofLeptothorax (Mychothorax) acervorum Fabr. together with fertilized females of this species. Sexuals of both species are bred in the mixed colonies. The new species shows no morphological specialisation in comparison withL. acervorum. The probable origin of such a social parasite in polygynous ant species is discussed.
    Abstract: Résumé Leptothorax (Mychothorax) kutteri n. sp. est décrit. La nouvelle espèce n'a pas d'ouvrières. Elle vit comme parasite dans des nids polygynes deLeptothorax (Mychothorax) acervorum Fabr. à côté des femelles fertilisées de cette espèce. Les colonies mixtes produisent des sexués des deux espèces. La nouvelle espèce n'a pas de spécialisations dans sa morphologie externe par comparaison avecL. acervorum. L'origine probable d'un tel parasite dans des espèces polygynes est discutée.
    Notes: Zusammenfassung Leptothorax (Mychothorax) kutteri n. sp. wird beschrieben. Die neue Art lebt sozialparasitisch in polygynen Nestern vonLeptothorax (Mychothorax) acervorum Fabr. neben begatteten ♀♀ dieser Art.L. kutteri ist arbeiterlos. In den gemischten Nestern werden Geschlechtstiere beider Arten aufgezogen. Die neue Art weist im äusseren Körperbau keine Spezialisierung gegenüber,L. acervorum auf. Die vermutliche Entstehung eines solchen Sozialparasiten in polygynen Ameisenarten wird diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222722
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 33
    Electronic Resource
    Electronic Resource
    Contribution a l'étude des réactions photo-ménotaxiques du criquet migrateur:Locusta migratoria migratorioides (R. et F.) (1965)
    Springer
    Insectes sociaux 12 (1965), S. 363-381 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222725
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 34
    Electronic Resource
    Electronic Resource
    On the nature of the sounds produced within the nest of the oriental hornet,Vespa orientalis F. (1965)
    Springer
    Insectes sociaux 12 (1965), S. 383-387 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222726
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 35
    Electronic Resource
    Electronic Resource
    On the significance of certain oscillatory movements of termites (1965)
    Springer
    Insectes sociaux 12 (1965), S. 335-345 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Nous avons étudié deux mouvements oscillatoires du termiteZootermopsis angusticollis. Nous avons trouvé que le Mouvement Longitudinal Oscillatoire s'est produit après que les termites ont été dérangés et que celui-ci semblait être une réponse à un stimulus relativement faible perçu par les organes sensoriels antennaires. Le Mouvement Complexe Oscillatoire s'est produit après une perturbation relativement forte. Il s'associe avec la déposition d'une trace odorante et se produit seulement après contact avec un individu de la même espèce. Nous avons montré que c'est un moyen d'exciter d'autres termintes, qui, normalement, suivront ensuite la trace odorante, mais ce n'est pas un stimulus spécifique à suivre une telle piste.
    Abstract: Zusammenfassung Es wurden zwei oszillatorische Bewegungen der TermiteZootermopsis anguisticollis untersucht. Es wurde gefunden, dass dielongitudinale oszillatorische Bewegung stattfand nachdem die Termiten gestört worden sind und dass sie als Antwort auf einen relativen geringen Reiz an den antennalen Senzillen anzusehen ist. Diekomplexe oszillatorische Bewegung fand nach einer relativen, grossen Störung statt. Sie hängt mit der Ablagerung eine Duftspur zusammen und wird erst nach dem Zusammentreffen mit einem Individuum der gleichen Gattung hervorgerufen. Es konnte gezeigt worden, dass sie ein Mittel ist, die anderen Termiten zu erregen, die dann normalerweise die Duftspur verfolgen, obwohl sie kein spezifischer Reiz ist einer solchen Spur zu folgen.
    Notes: Summary Two oscillatory movements of the termiteZ. angusticollis have been investigated. It was found that the Longitudinal Oscillatory Movement occurred after the termites had been disturbed and that it appeared to be a response to a relatively low-intensity stimulus to antennal sensilla. The Complex Oscillatory Movement took place after a relatively large disturbance. It is associated with the laying down of an odour trail, and occurs only on contact with an individual of the same species. It has been shown to be a means of exciting other termites which will then normally follow the odour trail, but it is not a specific stimulus to follow such a trail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222723
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 36
    Electronic Resource
    Electronic Resource
    Échanges protidiques entre fourmilières deFormica polyctena, mesurés a l'aide de radio-isotopes (1966)
    Springer
    Insectes sociaux 13 (1966), S. 1-4 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary The exchanges of protidic material between ant-nests (F. polyctena) are going on the same way as for sugar exchanges, but at much less rate.
    Notes: Résumé Les échanges de matériel protidique s'effectuent entre fourmilières deFormica polyctena de la même manière que les échanges de sucres, tout en restant beaucoup moins actifs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02224632
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 37
    Electronic Resource
    Electronic Resource
    Usurpation de nids étrangers et parasitisme facultatif chezHalictus scabiosæ (Rossi) (Insecte hyménoptère) (1967)
    Springer
    Insectes sociaux 14 (1967), S. 47-50 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Summary The break-up of pleometrotic spring associations ofHalictus scabiosæ (Rossi) causes the expelled auxiliaries to establish their own nests. They either dig their own burrows or utilise those of other species already present. The facultative parasitism described in this note was mainly directed againstEvylæus nigripes (Lep.) and ranged from mere nest occupation to the killing of the original owner and ovopósition in already provisioned cells.
    Notes: Résumé Les auxiliaires deHalictus scabiosæ (Rossi), expulsées de leurs nids lors de la dissolution des sociétés polygynes dont elles sont membres, sont contraintes de se reloger: ou bien elles creusent de nouveaux terriers, ou bien elles utilisent des nids préalablement édifiés par des femelles d'une espèce différente. Le parasitisme facultatif, décrit dans cette note, atteintEvylæus nigripes (Lep.) et va de la simple occupation d'un nid étranger au massacre de sa propriétaire avec ponte dans des cellules déjà pourvues de pains d'abeille.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222752
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 38
    Electronic Resource
    Electronic Resource
    Distribution of alkaline phosphatase in the castes of the termiteOdontotermes redemanni (Wasmann) and its role in caste formation (1967)
    Springer
    Insectes sociaux 14 (1967), S. 51-56 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary 1. Distribution of Alkaline Phosphatase in the brains and digestive tracts of the workers, soldiers and sexuals ofOdontotermes redemanni is specific. 2. During early embryogenesis phosphatase distribution is very uniform and gives no indication of the future caste differentiation. 3. In the advanced larvae three types of reactions are noted. Those with faint, mild and intense phosphatase reactions become soldiers, workers and sexuals respectively. 4. The queen in the «Royal chamber» gives out an exudation through the integument. This exudation is licked and carried by the workers to the undifferentiated larvae in the nurseries. This material has inhibitory or stimulator substance whose selective application sets in the castewise differentiation of the larvae. Once the differentiation is fixed, the larvae show phosphatase reactions specific to the castes into which they will eventually develop.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222753
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 39
    Electronic Resource
    Electronic Resource
    Addendum (1967)
    Springer
    Insectes sociaux 14 (1967), S. 101-102 
    Details
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02222756
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 40
    Electronic Resource
    Electronic Resource
    Proiezioni cartografiche di carattere speciale (1953)
    Springer
    Pure and applied geophysics 24 (1953), S. 5-10 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary Here is explained, through the solution of two problems, a procedure for the determination of the cartographic projections of the sphere, according to the principle that lines of a forfixed equation on paper correspond to determined lines on the sphere. Here are the problems in question: 1) To determine the equation of a rectilineal and convergent meridian lined paper in which the loxodromies are represented by straight lines. 2) To point out if there are other projections, besides the perspective centrographic one, turning maximum circles into straight lines.
    Notes: Riassunto Si espone, attraverso la risoluzione di due problemi, un procedimento di carattere generale per la determinazione di proiezioni cartografiche della sfera, secondo il principio che a determinate linee sulla sfera corrispondano linee di prefissata equazione sulla carta. I problemi trattati sono i seguenti: 1) Determinare l'equazione di una carta a meridiani rettilinei e convergenti in cui le lossodromie siano rappresentate con linee rette. 2) Ricercare se esistono altre proiezioni, oltre la centrografica prospettica, che trasformano i cerchi massimi in rette.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996045
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 41
    Electronic Resource
    Electronic Resource
    Die Magnetische Feldmühle (1953)
    Springer
    Pure and applied geophysics 24 (1953), S. 37-53 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary After a comparative consideration of the generally used methods of measurements ofD, H, I andZ, emphasizing the characteristic differences between the measure of angles and intensities, the new methods of the absoluteZ-determination are examined, in particular those basing upon electronic principles. The description of a new magnetic apparatus, simular to another instrument for determining the atm.-electric potential, called “magnetische Feldmfihle” is as follows: The principle is based upon the interrupted covering of coils, the central part of which consists of Mu-metall with laminas of the same material. On account of the position of the coils the frequency is 4-times as much as that of an earth-inductor, for which reason a normal amplifier may be used. The totalZ-field induces in the Feldmfihle an effective voltage of more than 2 Volts, whereas the great station-inductor ofSchulze produces only 75 inV. The Feldmfihle is used as a zeroinstrument for the absoluteZ-determination. The compensation ofZ is effected by a solenoid which bears more windings in according toHelmholtz-style for the finer calculation. The inhomogenity of the field within the solenoid is computed. This method permits to measure the field-intensity up to ±0.6 ψ.
    Notes: Zusammenfassung Nach einer vergleichenden Betrachtung der gebräuchlichen Meßmethoden yonD, H, I undZ unter Hervorhebung der charakteristischen Unterschiede zwischen Winkel- und Intensitätsmessungen, werden die neuen Methoden der absolutenZ-Messung, besonders auf elektronischer Grundlage untersucht. Eines neues magnetisches Meßgerät, entsprechend einem ähnlichen Gerät zur Messungen des luftelektrischen Potentials “magnetische Feldmiihle” bezeichuet, wird beschrieben. Das Prinzip beruht auf der intermittierten Abdeckung yon Spulen, deren Kerne aus Mu-Metallamellen bestehen, mit entsprechenden Lamellen und Kernen. Infolge der Anordnung der Spulen ist die Frequenz viermal so groß wie beim Erdinduktor, so daß ein normalcr Röhreuverstärker verwendet werden kann. Das totaleZ-Feld induziert in der Feldmühle eine effektive Spannung von über 2 Volt, wäihrend der große Stations-Induktor yonSchulze nur 75 mV gibt. Die Feldmühle wird als Nullinstrument für die absoluteZ-Messung verwendet. Die Kompensation vonZ erfolgt durch ein Solenoid, auf welchem sich noch weitere Wicklungen inHelmholt zanordnung zur Feinabstimmung desZ-Feldes befinden. Die Inhomogenitiit des Feldes im Solenoid wird berechnet. Bei 30–50-facher Verstärkung kann das Feldminimum mit einer Genauigkeit von +-0.6 ψ bestimmt werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996047
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 42
    Electronic Resource
    Electronic Resource
    Versuch einer Analyse der gemittelten vertikalen Ozonverteilung in verschiedenen geographischen Breiten (1953)
    Springer
    Pure and applied geophysics 24 (1953), S. 83-94 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The mean ozone distribution for various geographical latitudes is derived from ozone distributions measured by means of balloon ascents, eclipses of the moon and the «Umkehreffekt» and compared with the theoretically calculated photochemical distributions, whereby the full scope of the latter is considerably limited. —The discrepancy between the calculated and the measured ozone distribution below the ozone maximum at 23 km altitude is a sign of a considerable effect of mass exchange in the troposphere and lower stratosphere which increases towards the equator. In the mean and higher latitudes we find — especially in spring — a second lower ozone maximum at 16 km altitude which cannot be explained photochemically but is probably due to advection, to ozone transported down from polar latitudes.
    Notes: Zusammenfassung Aus den bei Ballonaufstiegen, bei Mondfinsternissen und durch den Umkehreffekt gemessenen Ozonverteilungen werden für verschiedene geographische Breiten gemittelte Ozonverteilungen abgeleitet und mit den theoretisch photochemisch berechneten Verteilungen verglichen, wodurch der Spielraum der letzten erheblich eingeengt wird. — Die Diskrepanz zwischen der berechneten und der gemessenen Ozonverteilung unterhalb des Ozonmaximums in 23 km Höhe lässt auf eine bedeutende Wirkung des Massenaustausches in der Troposphäre und in der unteren Stratosphäre schliessen, der nach den Aequator hin stark zunimmt. — In mittleren und höheren Breiten tritt — vornehmlich im Frühjahr — ein zweites tieferes Ozonmaximum in 16 km Höhe auf, das photochemisch nicht zu erklären ist, sondern advektiv, durch aus polaren Breiten herzugeführtes Ozon bedingt wird.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996052
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 43
    Electronic Resource
    Electronic Resource
    Über ein Strahlungsmessgerät mit Ultrarotdurchlässiger Windschutzhaube am Meteorologischen Observatorium Hamburg (1953)
    Springer
    Pure and applied geophysics 24 (1953), S. 107-114 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary A radiation measuring instrument with windshelter transmitting infrared waves is described, it fulfills our demands for continuous records of the atmospheric radiation, of the long-wave outgoing radiation of the ground, of the effective outgoing radiation (nocturnal radiation), and of the radiation balance (during the days) on the conditions of protection against wind, of reception of radiation from the hemisphere (2 π), and of following the Cosinelaw; the instrument has proved well without interruption. The radiation is received by twoMoll thermopiles (one of which points towards the sky and the other one towards the earth's surface) which are protected against wind by means of a thin leave of Lupolen-H transmitting the infrared waves. The thermopiles are connected with three galvanometers in such a way that we are able to record continuously the atmospheric radiation for itself, the long-wave outgoing radiation of the ground for itself, and in the night additionally the effective outgoing radiation, as well as the whole day long the radiation balance.
    Notes: Zusammenfassung Es wird ein Strahlungsmessgerät mit ultrarotdurchlässigen Windschutzhauben beschrieben, das die von uns gestellten Forderungen nach laufender Registrierung der atmosphärischen Gegenstrahlung, der langwelligen Ausstrahlung des Erdbodens, der effektiven Ausstrahlung (bei Nacht) und der Strahlungsbilanz (bei Tag) unter den Bedingungen des Windschutzes, des Strahlungsempfangs aus dem Halbraum 2 π und der Befolgung des Cos-Gesetzes erfüllt und sich im Dauerbetrieb bewährt hat. Als Strahlungsempfänger werden zweiMoll'sche Thermosäulen (eine nach oben und eine nach unten gerichtet) verwendet, die gegen den Windeinfluss durch eine ultrarotdurchlässige Lupolen-H-Folie geschützt sind. Die Thermosäulen sind elektrisch derart an drei Galvanometer geschaltet, dass die atmosphärische Gegenstrahlung für sich allein, die langwellige Ausstrahlung des Erdbodens für sich allein und bei Nacht zusätzlich die effektive Ausstrahlung sowie am Tage die Strahlungsbilanz laufend registriert werden können.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996055
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 44
    Electronic Resource
    Electronic Resource
    Predicting minimum temperature (especially frost) by the evening wet-bulb at Blue Hill, Mass. in spring (1953)
    Springer
    Pure and applied geophysics 24 (1953), S. 207-213 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The observations of ten Aprils (1941–50) at Blue Hill have been analyzed, and it has been found that frost (night minimum temperature ≦32° F) (T) can be predicted on the basis of the 19h wet-bulb temperature (ti) by the formula:T=ti−k, in whichk is found to be 1.8 F deg. in clear weather and 2.1 F deg. in cloudy. The results of a test on an independent set of Aprils (1936–40), are satisfactory especially with clear skies at 19h.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996060
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 45
    Electronic Resource
    Electronic Resource
    Note biografiche (1953)
    Springer
    Pure and applied geophysics 24 (1953), S. 214-215 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01996061
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 46
    Electronic Resource
    Electronic Resource
    Operational interpretation of some integral equations occurring in impulsive wave propagation problems in layered media (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 11-14 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Inversion formulae for the operational interpretation of some integral equations, with the exponent of the integrand involving any number of radicals, are given. Equations of the form considered here are of common occurrence to quite a wide variety of impulsive wave propagation problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875153
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 47
    Electronic Resource
    Electronic Resource
    Mixed boundary value problem in an elastic quarter-space (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 60-67 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The stress and displacement throughout a homogeneous, isotropic, elastic quarterspace have been evaluated when the stress is prescribed on one of the plane boundaries and the displacement on the other. The variations of the displacement and stress on the boundaries with time and distance from the origin have been shown graphically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875158
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 48
    Electronic Resource
    Electronic Resource
    Moon mass approximation in algebraic form analogous to activity sphere formula (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 105-108 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The concept of comet orbit activity sphere as introduced byD'Alembert and developed byLaplace is modified and applied to the Sun-Earth-Moon system, leading to a new approximate relationship between astronomical constants usually regarded as independent quantities. When Sun-Earth mass ratio, the astronomic unit, and Earth-Moon separation distance are taken as known, an elementary algebraic formula gives the Earth-Moon mass ratio in terms of these. Despite the inherently imprecise character of this type of calculation, surprisingly close numerical agreement with independently determined values is obtained. The great simplicity and directness of the result contrast with ardous orthodox inference procedures for the lunar mass, suggesting that newer methods of general dynamic analysis are required in the study of asymptotic states of the three-body problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875161
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 49
    Electronic Resource
    Electronic Resource
    Geomagnetic multipoles, 1829 to 1960 (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 121-132 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Using the results of spherical harmonic analyses of the geomagnetic field for some fourteen different epochs, includingGauss' first analysis for epoch 1835, and theErman-Petersen analysis for epoch 1829, the strength and axes of geomagnetic multipoles have been computed. In particular, a dipole from the three first order spherical harmonic coefficients, a quadrupole from five second order coefficients, and an octupole from seven third order coefficients. The axes of the quadrupole and octupole have moved quite rapidly when compared with movements of the dipole axis, and show a general movement westwards. Although the strength of the dipole has generally diminished, the strengths of the quadrupole and octupole have generally increased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875163
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 50
    Electronic Resource
    Electronic Resource
    Application of array data processing techniques to the swedish seismograph stations (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 82-104 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary An efficient tool in seismic signal analysis is offered by the array data processing techniques which are based upon similarity of pulse shapes between stations. Records at the six Swedish stations in general exhibit the signal resemblance required by the array methods. By applying a simple processing technique, the signal-to-noise ratio is increased by a factor of about 2, and the accuracy ofP-wave readings is improved. High similarity is found not only between the same phase (P, pP) at different stations, but also between different phases (P, pP) at the same or different stations. Altogether, records of eleven earthquakes were investigated in detail. The Swedish station network can be considered as a ‘super-large aperture seismic array’ (SLASA), despite some differences in instrumental equipment. A general adaptation of array techniques to SLASA systems is discussed. Such methods will greatly improve the seismological information which can be extracted from ordinary station records, provided the stations are located on geologically homogeneous ground.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875160
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 51
    Electronic Resource
    Electronic Resource
    A gamma spectrometric study of Mont-Blanc granite samples (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 153-160 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Gamma-ray spectra of the samples were measured by standard laboratory multichannel spectrometry. The weighted least squares method was applied to the digital output data in order to determine the concentrations of U238, Th232 and K40 present. U and Th increase towards the rim of the massif (from 4 ppm U and 20 ppm Th in the coarse-grained central facies to 23 ppm U and 42 ppm Th in the fine-grained rim variety), whereas K remains fairly constant at ∼3.85%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875165
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 52
    Electronic Resource
    Electronic Resource
    Analysis of magnetic inclination in borecores (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 133-152 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary In palaeomagnetism it is usually assumed that the distribution of directions of natural remanent magnetization at a site is Fisherian. This assumption is used here for an analysis of dispersion on a sphere when only inclination (and not declination) of NRM directions is known. By this method, in spite of the lack of declination data, the mean inclination and precision of the parent Fisherian population are estimated, together with the probable errors in these estimates. The method is tested against known Fisherian populations and is then used for dealing with data from borecores, where the way-up of cores and dip of the hole are known, but the azimuth of cores is not. Uses of the information derived from this analysis include estimations of age of NRM, support for palaeomagnetic data from surface studies, and comparison of dispersion of the palaeomagnetic field with that of the present geomagnetic field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875164
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 53
    Electronic Resource
    Electronic Resource
    Erklärung der magnetischen Strukturen der im Nickel-Arsengitter kristallisierenden Verbindungen der 3d-Übergangsmetalle (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 161-171 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Zusammenfassung Es wird gezeigt, dass sich die vonWollan undKanamori vorgeschlagenen Austauschmechanismen (letzterer in modifizierter Form) auch zur Erklärung der magnetischen Strukturen der im Nickel-Arsen-Gitter kristallisierenden Verbindungen der 3d-Übergangsmetalle eignen. Unter Berücksichtigung der direkten Wechselwirkungen können Erklärungen für die Unterschiede in der Höhe der magnetischen Umwandlungstemperaturen gegeben werden. Das paramagnetische Verhalten der Titanverbindungen wird auf das Fehlen lokalisierter magnetischer Momente zurückgeführt. Die Abnahme der magnetischen Umwandlungstemperaturen innerhalb der Reihe MeS, MeSe, MeTe (Me=V, Fe, Co, Ni) wird damit erklärt, dass diep-Funktionen der Anionen mit steigender Ordnungszahl an Stabilität verlieren, wodurch die «Richtwirkung» der Anionenfunktionen vermindert wird.
    Notes: Summary It is shown, that the kinds of superexchange mechanism ofWollan andKanamori are suitable for declaring magnetic structures of nickel-arsen-type compounds of the 3d-metals. Differences of the curie-temperatures are interpreted by change of direct exchange. Paramagnetic behaviour of the titan compounds is declared by lacking of localised magnetic moments. Reduced curie-temperatures within the serie MeS, MeSe, MeTe (Me=V, Fe, Co, Ni) indicate that anion-p-functions with rising ordinal number have decreasing stability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875166
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 54
    Electronic Resource
    Electronic Resource
    An attempt to the explanation and to the prediction of the eleven-year cycle of solar activity (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 205-210 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary According to the author the reason of the subsistence of the 11 years' sunspot cycle is to be found in the conjunction of the planets. As a result of the investigations it has been stated that from among the nine planets the joint tidal effect of Venus-Jupiter-Earth is a decisive factor in the variations of sunspot activity. The above three planets are every 10.4 years and 12.0 years respectively, in a close conjunction. The mean value (11.2 years) is in an almost full accordance with the average cycle-period. The fluctuations of the period of the cycle come from the fact that the planets' getting into approximately one line takes a different time within each cycle. This time delay is the cause of the stronger or weaker sunspot activity, and of the shorter or longer cycles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875170
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 55
    Electronic Resource
    Electronic Resource
    An investigation of the size frequency resolution of an aerosol by the static method of diffusion (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 220-230 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Theoretical considerations are put forward for identifying the Dynamic and Static Methods of Diffusion measurements of aerosol particles. On the basic of this equality the Exhaustion Method of Diffusion developed byPollak andMetnieks for the size-frequency resolution of a heterogeneous aerosol by Dynamic Diffusion Methods should be applicable to Static Methods. This hypothesis is tested using a Pollak-Nolan nucleus counter as decay vessel. It is shown that turbulence in the counter is the most serious obstacle against this type of approach to finding the size components of an aerosol. The time involved, the high humidity in the counter and a hypothetical nucleus-free zone are other major difficulties for relatively large Aitken nuclei. It is established, however, that for particles whose diffusion coefficient is of the order of 10−3 cm2 sec−1, the proposed method should be quite workable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875172
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 56
    Electronic Resource
    Electronic Resource
    Note onIrving Michelson, ‘resolution of tidal high water anomaly’ (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 250-251 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary It is demonstrated that the first order approximation of the equipotentials of two fixed distant bodies given byIrving Michelson is wrong.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875176
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 57
    Electronic Resource
    Electronic Resource
    Reply (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 252-252 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875177
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 58
    Electronic Resource
    Electronic Resource
    Propagation of magneto-elastic waves in a perfectly conducting plate extending to infinity in vacuum (1966)
    Springer
    Pure and applied geophysics 63 (1966), S. 253-254 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875178
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 59
    Electronic Resource
    Electronic Resource
    Grundzüge einer Raketen-Kinematik für Geodätisch-Geophysikalische Problemstellung (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 1-6 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Résumé Les conditions géométriques de l'observation de fusées verticales ou horizontales sont examinées par rapport aux applications geodésiques et géophysiques. Les figures démontrent l'existance de quelques districts stationnaires, particulièrement destinés à l'observation par principes différents.
    Notes: Summary The most suitable geometrical conditions of observation of vertically or horizontally moved rockets are inquired, with respect to geodetical and geophysical applications. Some diagrams show, that there exist several regions of stationary state, apt for different principles of observation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989014
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 60
    Electronic Resource
    Electronic Resource
    La détermination de la pesanteur normale en Géodésie (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 7-12 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary This article contains the development of the theory of the adoption of the ellipsoid of revolution in the gravimetric method, for the determination of the earth's shape, presented by the author in a former work. The conclusion completly justifies the actual practical methods for the calculation of the ellipsoidic gravity.
    Notes: Résumé On Cherche le développement de la théorie de l'adoption de l'ellipsoöde de révolution dans la méthode gravimétrique pour la détermination de la figure de la Terre, exposée par l'auteur dans un ouvrage antérieur. La conclusion justifie complètement les actuels méthodes pratiques pour le calcul de la pésanteur ellipsoïdique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989015
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 61
    Electronic Resource
    Electronic Resource
    Sugli errori medi delle deviazioni della verticale (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 13-15 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary Measuring the deflections of the plumb-line the attainable precision is determined, in particular to investigations for geophysical prospecting.
    Abstract: Zusammenfassung Es wird für die Bestimmung der Lotabweichungen der erreichbare Genauigkeitsgrad untersucht, besonders im Hinblick auf Messungen zur Erforschung des Untergrundes.
    Notes: Riassunto Si determinano le precisioni con le quali possono venire osservate le deviazioni della verticale e si richiama l'attenzione su ciò quando si debbono interpretare le misure predette per prospezioni del sottosuolo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989016
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 62
    Electronic Resource
    Electronic Resource
    A supposed error in Smithsonian Solar Constant determinations (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 16-18 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989017
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 63
    Electronic Resource
    Electronic Resource
    La phase de la composante annuelle des niveaux des rivières de la plaine de l'Est Européen (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 38-46 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The research deals with the hydrographic observations of the East-Europe's plain. The monthly means of the water level have been elaborated after the method of Mr. and Mrs.Labrouste with the aim to determine the phase of the yearly component. The map of the phase distribution and the profiles along the streams shows that this distribution is governed by the physiography, as well as by the seasonal course of the temperatures, what can permit to explain the observed particularities.
    Notes: Résumé L'étude publiée intéresse l'ensemble des échelles hydrométriques de la plaine de l'Est européen. Les moyennes mensuelles des niveaux ont été élaborées par la méthode d'analyse par combinaisons linéaires d'ordonnées, due à M. et MmeLabrouste, afin de définir la phase de la composante annuelle. La carte de la répartition de la phase et les profils de celle-ci le long des cours d'eau, montrent que cette répartition est commandée par le relief, ainsi que par la marche saisonnière des températures, ce qui permet d'expliquer les particularités constatées par les causes naturelles: altitudes, forme et extension du bassin, etc.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989019
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 64
    Electronic Resource
    Electronic Resource
    Die Drehkreuzmethode (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 47-75 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary A detailed description of an electrical method is given, developped by the author, concerning the application of two pairs of electrodes rectangular to each other, the one of which is creating an electrical field, whilst the other is measuring the disturbing function when turning the electrode arrangement. The disturbing function has been calculated for spherical and ellipsoidal bodies, taking into account the decrease of the current with increasing distance. It is shown, that it is possible to localize disturbing bodies when turning the electrode arrangement at one or a few places only and without any measuring equipotential lines and their distortions. It is proved that the determination of the direction of disturbing bodies is possible without the knowledge of their distance. It is emphasized that this theory is an other modification may also be applied on corresponding induction methods, based on the application of twe coils rectangular to each other and supplied by low frequency currents.
    Notes: Zusammenfassung Es wird die vom Verfasser entwickelte elektrische Drehkreuzmethode beschrieben. Die Messanordnung besteht aus zwei Elektrodenpaaren, von denen das eine zur Erzeugung eines elektrischen Feldes dient, während das andere zur Messung des elektrischen Störfeldes verwandt wird. Die Störfunktion beim Drehen der Elektrodenanordnung wird für elliptische Störkörper quantitativ berechnet, und es werden die Bedingungen für die Ortnung von Störkörpern quantitativ diskutiert
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989020
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 65
    Electronic Resource
    Electronic Resource
    Synoptisch-aerologische und luftelektrische Analyse einer eigenartigen Gewittererscheinung (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 19-37 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary In the present paper there is a description of a very strange kind of thunderstorm with fog and only one thunder-clap. It is analysed with regard to synoptic aerology and atmospheric electricity. It belonged to a cold-front-thunderstorm, but the characteristic frontal phenomenons occurred hours before. By a combination of the theories ofWilson andSimpson we try to explain the distribution of the charge and the single discharge. The quantity of the charge can grow enormously by ground fog and this fact stands for the intensity of the clap. The form of the discharge can be explained by the theory ofSchonland-Walter. We found gliding phenomenons in the fog and disruptige discharges from cloud to earth, but it is very difficult to say whether there is an uniform direction of the different branches of the single lightning. The different partial discharges of the single lightning are analogous to the discharge of a rapidly and strongly charged condenser, the plates of which are at a small distance.
    Notes: Zusammenfassung Es wird ein eigenartiges Gewitter beschrieben und aerologischsynoptisch sowie luftelektrisch analysiert. Es trat nur ein einziger, allerdings sehr heftiger Donner auf. Während des Gewitters herrschte Nebel, es ergab sich, dass es sich um ein «maskiertes Kaltfrontgewitter» handelte, bei dem die Kaltfronterscheinungen aber bereits Stunden vorher aufgetreten waren. Die Erklärung der Ladungsverteilung und in ihrer Folge der einzigen kräftigen Entladung als gesamte wahrnehmbare elektrische Gewittererscheinung wird durch eine Kombination der scheinbar gegensätzlichen Gewittertheorien vonWilson undSimpson versucht. Die Ladungsmenge kann durch den herrschenden Bodennebel ungeheuer anwachsen und erklärt damit die Stärke des Schlages. Die Entladungsform wird nach derSchonland-Walterschen Theorie zu deuten versucht. Es ergeben sich Gleitvorgänge im Nebel und Funkenentladungen von der Wolke zur Erde, wobei eine endgültige Entscheidung über die einheitliche Richtung der Verästelung nicht getroffen werden kann. Die mehrfachen Teilentladungen des einzigen Blitzes werden erklärt als Analogie zu den Funkenentladungen zwischen den Platten eines Kondensators mit geringem Abstand, der plötzlich stark aufgeladen wird.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989018
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 66
    Electronic Resource
    Electronic Resource
    Über ein neuartiges Prinzip der elektrischen Tiefensondierung (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 76-80 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Zusammenfassung Fussend auf theoretischen Ergebnissen vonR. M. Foster undS. S. Stefanescu wird ein neuartiges Verfahren zur elektrischen Tiefensondierung bei horizontaler Schichtung vorgeschlagen. Dieses Verfahren arbeitet im Gegensatz zum bekanntenWenner-Verfahren und zum «Zentralinduktions-Verfahren» nachKoenigsberger nicht mit der Veränderung eines Längenparameters (Elektrodenabstand, Schleifenradius), sondern mit veränderlicher Frequenz bei unveränderter Position der Elektroden und Sonden. Einige Vorzüge werden genannt, die diese Methode in praktischer Hinsicht haben dürfte.
    Notes: Summary Taking reference of theoretical results ofR. M. Foster andS. S. Stefanescu, a new method of electrical depth-sounding refering to horizontal strata is proposed. This new way works contrary to the wellknown princip ofWenner and also to the «Zentral-Induktions-Verfahren» afterKoenigsberger not with a change of a length-parameter (electrode-distance and coilradius), but with changeable frequency at unchanged position of electrodes and sondes. A few advantages are described, which this method may have in practice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989021
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 67
    Electronic Resource
    Electronic Resource
    Notiziario (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 98-99 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989025
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 68
    Electronic Resource
    Electronic Resource
    Zum Problem der elektrischen Übertragung seismischer Impulse über grössere Entfernungen mittels Kabel (1950)
    Springer
    Pure and applied geophysics 16 (1950), S. 81-86 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Zusammenfassung Es wird untersucht, mit welcher Verzögerung und Verformung eine in einem Induktions-Seismometer erzeugte elektrische Spannungsschwankung die Registriervorrichtung erreicht, wenn die Uebertragung durch eine Leitung erfolgt. Es werden «Verformungszahlen» definiert, mittels deren sich Leitungen verschiedenen Typs hinsichtlich der Formtreue der Uebertragung vergleichen lassen. Einige Beispiele hierfür werden behandelt. Die erforderliche Selbstinduktivität (Pupinisierung) eine freischwebenden Doppelleitung für grösstmögliche Formtreue wird angegeben. Hierbei ergibt sich z.B. für 20 km Kabellänge eine Laufzeit von der Grössenordnung einer hundertstel Sekunde.
    Notes: Summary It is beeing investigated, with which retarding and deforming one in an induction-seismometer generated electrical tension-oscillation the recorderapparatus arrives, presuming the transformation has been taken by means of wire. Numbers of deforming are given, which allowes the comparison by different types of wires, regarding the true shape of the transmission. A few examples will be described. The necessary selfinduction («Pupinisierung») of a freehanging doublewire for the greatest possible true shape is named. Thereby results for instance by a cablelength of 20 km a traveltime of about 1/100 of a second.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01989022
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 69
    Electronic Resource
    Electronic Resource
    Eine Induktions-Impulsmethode für den Nachweis des Erdöls (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 54-63 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary An induction pulse method is described, based upon the measurement of a dielectric dispersion phenomenon. This method opens the possibility of a direct and selective reaction of the petroleum at a depth of more than 6000 feet. Hereby the selective reaction is based upon the variation of the exciting conditions.
    Notes: Zusammenfassung Es wird eine Induktionsimpulsmethode beschrieben, welche sich auf die Messung dielektrischer Dispersionsphänomene gründet, und welche einen direkten Nachweis des Petroleums auf Tiefen von über 2000 m ermöglicht. Durch Variation der Anfachungsbedingungen kann man selektive Reaktionswirkungen erzielen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009470
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 70
    Electronic Resource
    Electronic Resource
    Erste Tagung der Arbeitsgemeinschaft Ionosphäre der deutschen geophysikalischen Institute, 8.–10. Aug. 1950 (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 64-67 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009471
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 71
    Electronic Resource
    Electronic Resource
    Erdmagnetische Kennziffern K1: Juli 1950 (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 70-72 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009473
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 72
    Electronic Resource
    Electronic Resource
    Note biografiche (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 73-76 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009474
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 73
    Electronic Resource
    Electronic Resource
    Libri nuovi (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 77-80 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009475
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 74
    Electronic Resource
    Electronic Resource
    Betrachtungen über die Grundschicht (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 46-53 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary 1. There are discussed individual proceedings which shall explain the characteristic behaviour of pressure, and temperature instability in their vertical distribution. When there exists equalization of pressure on a lower level near the ground, and again on a higher level, changes of temperature on one level will be compensated by such on another level. It is shown that the compensating influence of middle and upper troposphere is opposed by the compensating influence of cold, and heat waves from the ground layer, ultimately resulting in the removal of the level of pressure equalization from the ground to an altitude roughly corresponding to the height of ground layer. — 2. The influence of friction and convection on the formation of ground layer is discussed. While friction is acting slowly and by layers, convection is acting more rapidly, but only locally at first. In the long run however, also convection can produce homogeneity of the lower layers of the atmosphere, i. e. an atmospheric layer of uniform character. This process is being intensified when convection is associated with condensation. Then, another increase in height of the ground layer will be possible. However, as this process will not be of similar intensity over wide stages, the increase in height will vary locally. Therefore, generally the ground layer of the squally weather type will not possess a uniform surface extending over wide areas. — 3. Another important factor in the formation of ground layer is radiation. Since the share taken by each of the three factors (friction, convection, radiation) cannot be computed, one must be satisfied with qualitative valuation of the influence of the factors participating in the formation of ground layer. An appropriate scheme is submitted and discussed.
    Notes: Zusammenfassung 1. Es werden die einzelnen Vorgänge besprochen, die das eigentümliche Verhalten der Veränderlichkeit von Druck und Temperatur in ihrer vertikalen Verteilung erklären sollen. Wenn ein unteres an der Erdoberfläche vorhandenes Druckausgleichsniveau vorhanden ist und ein weiteres in grösserer Höhe, so müssen Temperaturänderungen in dem einen Niveau durch solche eines anderen ausgeglichen, kompensiert werden. Es wird gezeigt, dass dem kompensierenden Einfluss der mittleren und oberen Troposphäre ein kompensierender Einfluss der Kälte- und Wärmewellen aus dem Bereiche der Grundschicht entgegenwirkt, sodass letzten Endes das Druckausgleichsniveau nicht mehr am Erdboden liegt, sondern in eine Höhe verschoben wird, die der ungefähren Höhe der Grundschicht entspricht. — 2. Der Einfluss von Reibung und Konvektion auf die Bildung der Grundschicht wird besprochen. Die Reibung wirkt langsam und immer schichtweise. Die Konvektion wirkt rascher, aber zunächst immer nur lokal. Im Verlaufe längerer Zeit kann aber auch die Konvektion eine Homogenisierung der unteren Luftschichten bewirken, also eine Luftschicht von einem einheitlichen Charakter schaffen. Dieser Prozess wird noch verstärkt, wenn die Konvektion mit Kondensation verbunden ist. Jetzt ist eine weitere Ueberhöhung der Grundschicht möglich. Da dieser Prozess aber über weite Räume nicht von gleicher Grösse ist, wird diese Ueberhöhung vielfach gebietsweise verschieden sein. Die Grundschicht vom Böenwettertyp hat daher gewöhnlich keine einheitliche Oberfläche über weite Gebiete hinweg. — 3. Ein weiterer Faktor, der für die Bildung der Grundschicht von Bedeutung ist, ist die Strahlung. Da der Beitrag, den jeder der drei Faktoren (Reibung, Konvektion, Strahlung) zur Bildung der Grundschicht beisteuert, nicht errechnet werden kann, muss man sich zunächst mit einer qualititativen Abschätzung der Einflüsse der einzelnen an der Bildung der Grundschicht beteiligten Faktoren begnügen. Ein entsprechendes Schema wird vorgelegt und besprochen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02009469
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 75
    Electronic Resource
    Electronic Resource
    Rendiconti delle Sedute (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 81-87 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018344
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 76
    Electronic Resource
    Electronic Resource
    Experimental studies related to atmospheric flow around obstacles (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 88-93 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Laboratory-scale experiments on a small cylindrical barrier capable of being moved zonally with respect to a rotating hemispherical shell of liquid are described. When the cylinder is moved west relative to the shell at rates approximating 1/10 of the basic rotation a strong anticyclonic circulation developes around the cylinder and pronounced wave motions appear in the remainder of the liquid. When the cylinder is moved eastward at the same relative rates there is no net circulation around it and rapid motions toward the east occur in the latitude zone that it occupies. Velocity discontinuity surfaces on which occasional vortices develop divide this zone from the remainder of the liquid on both sides where much less developed motions occur. General implications of these and certain other types of experiments for problems of flow over large mountain masses are pointed out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018345
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 77
    Electronic Resource
    Electronic Resource
    Misure della radiazione solare diretta a diverse altezze nel versante meridionale delle Alpi (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 121-126 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Résumé On a procédé à des mesures simultanées de la radiation en deux stations d'altitude différente (400 et 1100 m/m) sur le versant sud des Alpes. On peut tirer de ces recherches les conclusions suivantes: Aux deux endroits l'intensité est la plus forte par situation de foehn. Les différences d'insolation sont minimum aux jours de foehn, maximum par temps brumeux; dans le rapport des deux radiations on remarque une courbe journalière prononcée.
    Abstract: Zusammenfassung An zwei Stationen auf der Südseite der Alpen wurden in verschiedenen Meereshöhen (400 und 1100 m/M) zu gleicher Zeit Messungen der direkten Sonnenstrahlung vorgenommen. Aus diesen Untersuchungen geht folgendes hervor: Die grössten Intensitäten werden an beiden Orten bei Föhnlagen gefunden. Die Unterschiede zwischen den Strahlungen an beiden Stationen sind am kleinsten an Föhntagen, am grössten an dunstigen Tagen. Auch zeigt sich in dem Verhältnis beider Strahlungen ein ausgeprägter Tagesgang.
    Notes: Summary Measurements of direct sun radiation were taken contemporaneously by two stations on the south side of the Alps at two different altitudes above sea level, viz. 400 and 1100 meters. From these observations the following results were obtained: The greatest intensities are found in both places when Föhn prevails. The differences between the two stations are smallest on days of Föhn, largest on dusty and damp days. Furthermore, a marked daily march is found in the relation between both radiations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018349
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 78
    Electronic Resource
    Electronic Resource
    Étude synoptique des précipitations alpines (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 130-135 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The position of the very important climatic limit, definited byBenevent, which separates the humid climate of north Alps and the dry climate of south Alps, is first described. The method used for synoptic study of alpine precipitations is then exposed: it consists in plotting for every day on a great scale chart the amounts of rain measured in the alpine rain-jauge stations and in comparing this result with the isohypses charts at the 700, 500 and 300 mb levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018351
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 79
    Electronic Resource
    Electronic Resource
    Der Dimmerföhn vom 18. Dezember 1945 (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 167-182 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The heavy «Foehn» of the 18 th of December 1945 is described in detail and considered in connection with a theory about the «Foehn» formerly published. Based on this theorie the essential problems of the development of the «Foehn» can well be explained.
    Notes: Zusammenfassung Die Dimmerföhnlage vom 18. Dez. 1945 wird in ihrer Entwicklung eingehend beschrieben und im Zusammenhang mit einer früher veröffentlichten Föhntheorie betrachtet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018354
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 80
    Electronic Resource
    Electronic Resource
    Einige geoelektrische Untersuchungen auf österreichischen Gletschern (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 210-213 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Experiments to determine the thickness of glaciers by high frequency prospecting were carried out on the Austrian glacier Hintereisferner in 1938. After the war electrohydrographical measurements on glacier rivulets were carried out in the Kaprun Valley. The resistance of the glacier water fluctuates according to the time of season. It depends on the respective composition of these waters (Fig. 2). Therefore the geologic and mineralogic properties of the glacier-water may be deducted from the electric resistance. Especially the amount of surface water may be deducted (Fig. 3). An example is shown in Fig. 4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018358
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 81
    Electronic Resource
    Electronic Resource
    Untersuchungen über die Schneedeckenver-Hältnisse im Hochgebirge nach Beobachtungen auf der Grossglockner-Hochalpenstrasse (Vorläufige mitteilung) (1950)
    Springer
    Pure and applied geophysics 17 (1950), S. 183-198 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The articledeals with a preliminary evaluation of observations of snow depth at the Grossglockner highway during a period of ten years. The numerous observations show clearly the variation of the depth of a snow cover in between a small area in high mountains. The stations were located 100 meters and less apart from each other. 800 observation stations have been established extending 46 km along the highway. Observations were made once a week. Mean values obtained from 6 measurements in a 120 m broad profile rectangular to the road give a representative annual average of snow depth for different elevation and different orographic areas. Two types of annual variations can be distinguished according to the exposure of the considered area. The great variation of the mean snow depth at each of the six stations of one profile—there are variations of several meters-and variations of the same order of magnitude for stations of the same profile for different years show that the observations of a single station in high mountains are by no means representative. Therefore the evaluation of mean values over a certain small area must be recommended in order to obtain accurate results. In general a derivation of the amount of precipitation from the snow depth for a single station cannot be justified. The variation of snow depth can also be recognized from the average snow profile along the highway and from the difference of this quantity between the center and the border of the road. The results of frequent measurements of snow depth at the Grossglockner highway can be also used with success for considerations on the economy of glaciers and for an estimation of the water contents of a snow cover in winter which may be of particular interest for hydrology.
    Notes: Zusammenfassung Es wird über eine vorläufige Bearbeitung zehnjähriger Beobachtungen der Schneehöhen auf der Grossglockner-Hochalpenstrasse berichtet, die durch die Häufung von Beobachtungsstellen vor allem einen Einblick in die Veränderlichkeit der Mächtigkeit der Schneedecke auf kleinem Raum im Hochgebirge gewähren. Die Messtellen lagen in Entfernungen von 100m und weniger. Aus je sechs Messungen in 120m breiten Profilen quer zur Strasse berechnete Mittelwerte erlauben, repräsentative durchschnittliche Jahresgänge der Mächtigkeit der Schneedecke für verschiedene Höhen und orographische Lagen abzuleiten. Es lassen sich zwei Typen der Jahresgänge unterscheiden, die durch den Grad der Exposition des Messgebietes bestimmt werden. Die grossen Unterschiede der mittleren Schneehöhen an jeder der sechs Messtellen der einzelnen Profile, die mehrere Meter übersteigen können, und die ähnlich grossen Unterschiede in der Verteilung der Schneehöhen auf die einzelnen Messtellen der Profile in den verschiedenen Jahren lassen erkennen, wie wenig repräsentativ für ein weiteres Gebiet im allgemeinen eine einzelne Schneehöhenmesstelle im unebenen Gelände des Hochgebirges ist. Zur Gewinnung repräsentativer Werte der Schneehöhen ist im Hochgebirge die Bildung von Gebietsmittel aus mehreren über einen kleinen Raum verteilten Messtellen zweckmässig. Ein Rückschluss auf die Niederschlagsmengen aus den Schneehöhen einer Messtelle ist im allgemeinen im Hochgebirge nicht gerechtfertigt. Die grosse Veränderlichkeit der Schneehöhe im Hochgebirge wird auch aus durchschnittlichen Schneeprofilen entlang der Hochalpenstrasse und aus den Unterschieden der durchschnittlichen Schneehöhen zwischen Strassenmitte und Strassenrand ersichtlich. Die Ergebnisse der gehäuften Schneehöhenmessungen auf der Grossglocknerstrasse erscheinen für die Beurteilung der Nährgebiete der Gletscher und für die Abschätzung des Wasserwertes der winterlichen Schneedecke des Hochgebirges für die Zwecke der Wasserwirtschaft von grosser Bedeutung.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018355
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 82
    Electronic Resource
    Electronic Resource
    Radioattività del potassio ed età della Terra (1950)
    Springer
    Pure and applied geophysics 18 (1950), S. 128-131 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary Recent experiments on the radioactivity of potassium 40 give as result: $$\lambda = (0.60 \pm 0.05)10^{ - 9} a^{ - 1} ,\lambda _K /\lambda = 0.10 \pm 0.05,$$ λ K being the constant of decay byK-electron capture, λ=λβ+λ K the total decay constant. If we make following assumptions: 1st) the atmospheric argon is the decay product of potassium 40 in the earth, which has undergoneK-capture; 2nd) the potassium existing in the earth is practically all contained in the external crust, 10 miles thick; 3rd) the age of the solid crust does not exceed ∼3.109 years: we come to the conclusion that the earth as a whole must have remained in a fluid state for ∼ 109 years at least.
    Notes: Riassunto Da esperienze recenti risultano per le costanti radioattive del potassio 40 i valori seguenti: $$\lambda = (0.60 \pm 0.05)10^{ - 9} a^{ - 1} ,\lambda _K /\lambda = 0.10 \pm 0.05,$$ dove λ=λβ+λ K è la costante di disintegrazione totale λ K la costante di catturaK. Se si ammette che: 1°) l'argon atmosferico abbia origine dal potassio 40 contenuto nella terra, che ha subìto la catturaK; 2°) la massa di potassio disponibile nella terra sia praticamente quella contenuta nella crosta, di 16 km di spessore; 3°) la crosta si sia solidificata da non più di ∼ 3.109 a: si conclude che la terra deve essere rimasta allo stato fluido per un tempo dell'ordine di 109 anni almeno.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02000315
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 83
    Electronic Resource
    Electronic Resource
    The electric eye (1950)
    Springer
    Pure and applied geophysics 18 (1950), S. 113-119 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary Geodesy is at present faced with tremendous tasks of world-wide scope. Main triangulations constituting the basis for a reliable determination of the earth's figure, the establishment of absolute coordinates and consistent large-scale mapping have, in the course of the past 150 years, been completed only to a very limited extent. In order to speed up efforts the customary methods and instruments of observation should be revised on the grounds of recent experiences made in the field of physics. Numerous nations have already made valuable contributions and an appreciable increase of results has been reached by means of the optical micrometer, theodolites with photographic registration, steel towers etc. In order to overcome obstacles due to unfavorable atmospheric conditions, the electric eye has been designed, replacing visual observation by photo-electric indication. The present note is in particular a report on the present stage of experiments made by the Institut für angewandte Geodäsie. These experiments have proved that generally speaking the new device is well suited for the purpose on hand. However, further efforts will be required for creating an apparatus thoroughly reliable also in the field.
    Notes: Zusammenfassung Die internationale Geodäsie steht noch heute vor gewaltigen Aufgaben. Das Hauptdreiecksnetz, das die Grundlage der sicheren Bestimmung der Erdfigur, der Schaffung absoluter Koordinaten für die gesamte Erdoberfläche und klaffungsfreier grossmasstäblicher Karten dient, ist in den letzten 150 Jahren nur zu einem geringen Bruchteil fertiggestellt. Moderne physikalische Erkenntnisse müssen die klassischen Beobachtungsmethoden und-instrumente reformieren, um die Leistungen zu beschleunigen. Viele Nationen haben hier wertvolle Beiträge geliefert. Optisches Mikrometer, photographisch registrierende. Theodolitc, stählerne Beobachtungstürme usw. haben schon bedeutende Leistungssteigerungen erzielt. Zur Ueberwindung der Hindernisse, die durch ungünstige atmosphärische Verhältnisse erzeugt werden, ist das elektrische Auge konstruiert worden, das die visuelle Beobachtung durch elektrische Anzeigegeräte ersetzt. Es wird über den neuesten Stand der im Institut für angewandte Geodäsie durchgeführten Versuche berichtet, die bereits die grundsätzliche Eignung des Gerätes im erstrebten Sinne beweisen liessen. Fernere Versuche und Vervollkommnungen werden notwendig sein, um das Gerät zu einem nie versagenden, feldmässig einsatzfähigen Gerät zu gestalten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02000313
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 84
    Electronic Resource
    Electronic Resource
    Über das Flimmern und Schweben des Zielbildes (1950)
    Springer
    Pure and applied geophysics 18 (1950), S. 120-127 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The oscillation of the sight point picture in telescope and simultaneously the difference of the air temperatures between the hights of 0.5 and 2.5 meters have been observed every two hours through two clear days and nights. Hereby the following results have been obtained. Short after the sunrise the sight point picture is quite immovable. Soon after it beginns to vibrate, at first slightly and slowly (one time in second) and then more violently and quickly (five times in second). The vibration attains its maximum short after the noon, then it decreases and becomes zero not long before the sunset. From now till the sunrise the sight point picture is swaying very slowly (in periods of several minutes). The vibration is proportional to the 1.68-power of the sight length. It correlates the vertical temperature gradient, and the vibration is e. g. for the sight of 75 m:F 75=0.66–1.42 ϱ mm, where ϱ means the temperature increase from 0.5 to 2.5 m (here negative). The swaying is proportional to the 2.05-power of the sight length. It correlates the gradient, and the swaying is e. g. for the sight of 125 m:S 125=1.3+4.02 ϱ mm, where ϱ has the same meaning as above. Between the sight errorZ and the vibrationF a relation:Z=0.11+0.029F mm is to be seen. Thus the accuracy of the sighting is not very sensitive to the vibration.
    Notes: Zusammenfassung In zwei Beobachtungsserien von 24 Stunden ist jede zweite Stunde die Schwankung des Zielbildes beobachtet und gleichzeitig die Temperaturdifferenz zwischen den Höhen 0.5 und 2.5 m gemessen worden. Aus diesen Beobachtungen gehen folgende Resultate hervor. Kurz nach Sonnenaufgang ist das Zielbild unbeweglich. Bald beginnt es zu flimmern, zuerst schwach und langsam (einmal in der Sek.) später stärker und schneller (5 mal in der Sek.). Das Flimmern erreicht sein Maximum etwas nach Mittag, vermindert sich dann und wird Null kurz vor Sonnenuntergang. Von hier an beginnt das Zielbild sehr langsam (in Perioden von Minuten) zu schweben. Der Betrag des Flimmerns ist proportional der 1.68-Potenz der Zielweite. Sie hängt von dem Temperaturgradienten ab, und z. B. bei der Zielweite 75 m beträgtF 75=0.66–1.42 ϱ mm, wo ϱ die Temperaturdifferenz zwischen den Höhen 0.5 und 2.5 m bezeichnet. Der Betrag des Schwebens ist proportional der 2.05-Potenz der Zielweite. Sie hängt von dem Temperaturgradienten ab, und z. B. bei der Zielweite 125 m beträgtS 125=1.3+4.02 ϱ mm, wo ϱ die obenangegebene Bedeutung hat. Zwischen dem ZielungsfehlerZ und dem FlimmernF besteht die BeziehungZ=0.11++0.029F mm. Das Schweben wirkt sehr stark auf die Zielungsgenauigkeit ein, obgleich beim Vorkommen des Schwebens das Zielbild nach dem Augenmass unbeweglich erscheint.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02000314
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 85
    Electronic Resource
    Electronic Resource
    Bemerkungen zur Meteorologie der Ionosphäre (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 33-38 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary From 1941 to 1942 at Cologne ionospheric interferences have been observed, which showed a specially favoured flow from NNE in the E-layer. In the F-layer such favoured flow were not to recognize. If one interpret the movement of these ionospheric interferences as a motion of material particles, this direction distribution is incompatible with the direction distribution ofHoffmeister's «Leuchtstreifen» (glowing stripes) at 120 km. Of course it is to concede, that the «Leuchtstreifen» were observed at night, while the ionospheric interferences are day observations. An explanation of these differences and an unobjectionable interpretation of the mechanism of the ionospheric interferences are so much the more necessary as the synoptic meteorology is more and more interested in the ionosphere.
    Notes: Zusammenfassung In Köln wurden in den Jahren 1941 bis 1942 Ionosphärenstörungen beobachtet, die in der E-Schicht eine bevorzugte Zugrichtung aus NNE aufwiesen. In der F-Schicht liess sich eine solche Bevorzugung einer Zugrichtung nicht erkennen. Wenn man die Wanderung dieser Ionosphärenstörungen als Bewegung materieller Teile deutet, so steht die Richtungsverteilung in einem klaffenden Widerspruch zur Richtungsverteilung der vonHoffmeister beobachteten Leuchtstreifen in rund 120 km Höhe. Es muss allerdings eingeräumt werden, dass es sich bei Leuchtstreifen um Nacht-, bei den Ionosphärenstörungen um Tagesbeobachtungen handelt. Eine Aufklärung dieser Unterschiede und eine einwandfreie Deutung des Mechanismus dieser Ionosphärenstörungen ist umso notwendiger, als die Ionosphäre steigendes Interesse auch für die synoptische Meteorologie gewinnt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995976
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 86
    Electronic Resource
    Electronic Resource
    Rappresentazione di curve spaziali materializzate (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 39-43 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary One may represent a spatial curve Γ on a plane by bending a metal thread along the curve and then photographing it, but in this way much time is wasted. In the present paper the A. suggests an optical device which, replaced to the pencil of the out-put table ofBush's machine, traces on film a curve Γ′ that should look like the photographic image of the thread. In this study were taken into account only the cases in which the light source lighting Γ′, is at the infinite or in the coordinate origin, while the point of view is always at the infinite.
    Notes: Riassunto Per rappresentare una curva spaziale Γ su un piano si può piegare un filo metallico secondo la curva e fotografarlo, operazione che però richiede molto tempo. Nel presente articolo l'A. illustra un dispositivo ottico che, sostituito alla matita della tavola di egresso della macchina diBush, è atto a descrivere su pellicola una curva Γ′ simile all'immagine fotografica del filo. In questo studio si sono considerati soltanto i casi in cui la sorgente di luce che illumina la Γ′ è all'infinito o nella origine delle coordinate, mentre il punto di vista à sempre all'infinito.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995977
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 87
    Electronic Resource
    Electronic Resource
    La Dyssymétrie des Régimes Pluviaux au Nord et au sud des Alpes Suisses (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 47-51 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The index of similarity calculated between one alpine locality, Sion in Wallis, and some other places situated on each side of the Alps shows the dissimilarity of the rain systems of both sides. In North, the nearly normal indices reflect the homogeneous distribution of rain in large areas; in South, too small indices betray the irregularity of rain zones and their geographic dispersion. Wallis belongs to the north region.
    Notes: Résumé L'indice de similitude calculé entre une station alpine, Sion en Valais, et quelques localités situées de part et d'autre des Alpes met en évidence la dissemblance des régimes pluviaux des deux versants. Au Nord, les indices quasi normaux reflètent la distribution homogène des pluies en plages de grandes dimensions; au Sud, les indices trop faibles trahissent l'irrégularité des zones pluvieuses et leur dispersion géographique. La Valais appartient à la région nord.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995979
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 88
    Electronic Resource
    Electronic Resource
    Die Spannbandmagnetnadel (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 60-74 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary An investigation is made into the possibility of replacing the normal magnetic needle jewelled bearings by a torsion suspended needle. The needle is suspended between two wires (ribbons) under torsion. The object is to make practical use of the new magnetic material, with practical reference to permanently magnetic materials, in magnetic measuring instruments.
    Notes: Zusammenfassung Es werden systematisch die physikalischen Grundlagen untersucht, um die bisherigen gewöhnlichen Magnetnadeln mit Steinlagerung durch eine solche Torsionsmagnetnadel zu ersetzen, deren Torsionsaufhängung beiderseitig gespannt ist. Das Ziel ist, für magnetische Messinstrumente die neuen magnetischen Werkstoffe, hier vorerst die Dauermagnetwerkstoffe, nutzbar zu verwenden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995981
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 89
    Electronic Resource
    Electronic Resource
    Atmosphärische Fronten und Vertikalaustausch (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 52-59 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary The five cold front types adopted by the author, with the vertical lapse rate of temperature in the frontal area as the essential characteristic, and stable und unstable warm frontal systems are distinguishable in the weather maps by specific weather phenomena connected with them. Based on the weather maps for Hamburg Germany, in 1950, the annual mean coefficient of vertical exchange at the 35-m level and the oxydation value of the surface air layer were determined for each of these frontal types. The results obtained are confirming as justified the adopted classification.
    Notes: Zusammenfassung Die vom Verfasser aufgestellten fünf Typen von Kaltfronten, die als wesentliches Unterscheidungsmerkmal die vertikale Temperaturschichtung im Frontbereich benutzen, sowie stabile und labile Warmfronten zeichnen sich in den Wetterkarten durch typische Wettererscheinungen aus. Für jeden dieser Fronttypen, die nach diesen Erscheinungen aus den Wetterkarten des Jahres 1950 für Hamburg ausgesucht wurden, wurde das Jahresmittel des vertikalen Austauschkoeffizienten in 35 m Höhe und der Oxydationswert der Bodenluft bestimmt. Die Ergebjisse bestätigen die Berechtigung der gegebenen Frontenklassifikation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995980
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 90
    Electronic Resource
    Electronic Resource
    Bericht über die Tagung der Deutschen Geophysikalischen Gesellschaft in Hamburg vom 23. bis 28.10.1950 (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 100-104 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995984
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 91
    Electronic Resource
    Electronic Resource
    Die geoelektrische Überprüfung von Zementinjektionen zur Verfestigung des Baugrundes (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 92-99 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary In order to close the clefts in subsoil of dams, cement is pressed into them. A geoelectrical method of measuring is now described, with which the following data may be determined: the open volume of the clefts before injection of cement, the volume that has been filled with cement during injection and the still open volume after injection. Further we can state, whether cement has flows to distant spaces. The method was esamined by some hundred injections in Austria.
    Notes: Zusammenfassung Um den Kluftraum im Baugrunde von Staumauern zu schliessen, presst man in diesen Zementmilch. Es wird nun ein geoelektrisches Verfahren beschrieben, mit dem folgende Angaben bestimmt werden können: Das offene Kluftvolumen vor der Injektion; das durch die Injektion gefüllte Kluftvolumen; die Menge von Injektionsmilch, die aus dem für die Injektion bestimmten Raume nach entfernten Räumen ausfloss. Das Verfahren wurde in Oesterreich an mehreren hundert Einzelinjektionen erprobt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995983
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 92
    Electronic Resource
    Electronic Resource
    Magnetische Prospektorgeräte (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 75-91 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary It follows from the geophysical facts that in prospecting, especially for ore, an universal magnetic instrument with a relative measuring accuracy of 0.1 p. c. is completely adequate. The field components are compensated by means of bar magnets. A magnetic needle suspended under tension serves here as the zero indicator. The vertical component is determined by means of deflectors. Apart from research into their scientific basis, the new magnetic materials are being examined in respect of their most suitable practical application. The temperature coefficients of the magnetic moment of permanent bar magnets are measured. The theory of deflectors is given. The experimental research on various highly permeable newer alloys shows that the magnetic induction in deflectors composed of such materials is in actual fact dependent only on their geometrical proportions. In particular descriptions are given of prospecting apparatus with offset-scales (Ablenkungsschienen) and of the type known as Kohlrausch-variometers (Einstabvariometer). The desired accuracy of 0.1 p. c. inH andZ is already being achieved by direct indicator reading of the torsion needle.
    Notes: Zusammenfassung Aus den geophysikalischen Gegebenheiten folgt, dass für die Prospektion, vornehmlich auf Erz, ein magnetisches Universalinstrument mit einer relativen Messgenauigkeit von 0.1 % völlig ausreicht. Die Feldkomponenten werden durch Stabmagnete kompensiert. Als Nullindikator dient dabei eine Spannbandmagnetnadel. Die Vertikalkomponente wird mittels Deflektorstäbe bestimmt. Neben den theoretischen Grundlagen werden die neuen magnetischen Werkstoffe auf ihre zweckentsprechende Verwendung hin untersucht. Die Temperaturkoeffizienten des magnetischen Moments von Stabdauermagneten werden magnetometrisch gemessen. Die Theorie der Deflektorstäbe wird gegeben. Die experimentellen Untersuchungen an verschiedenen neueren hochpermeablen Legierungen zeigen, dass die magnetische Induktion in kurzen Deflektorstäben aus solchen Materialien praktisch nur noch von dem geometrischen Dimensionsverhältnis abhängt. Im einzelnen werden Prospektorgeräte mit Ablenkungsschienen und als Einstabvariometer beschrieben. Die angestrebte Genauigkeit von 0.1 % inH unZ wird bereits mit Zeigerablesung der Spannbandmagnetnadel erreicht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995982
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 93
    Electronic Resource
    Electronic Resource
    Bericht über die Tagung der Meteorologischen Gesellschaft in Hamburg vom 25. bis 29.10.1950 (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 105-107 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995985
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 94
    Electronic Resource
    Electronic Resource
    Note biografiche (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 108-108 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995986
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 95
    Electronic Resource
    Electronic Resource
    Libri nuovi (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 111-116 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995988
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 96
    Electronic Resource
    Electronic Resource
    Notiziario (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 109-111 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01995987
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 97
    Electronic Resource
    Electronic Resource
    Die Schwere im Gebirge (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 124-128 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary Some simple relations between the formation of the mountains and the gravity are discussed.
    Notes: Zusammenfassung Einige einfache Beziehungen zwischen den Schwere-Werten und der Formung der Gebirge werden gezeigt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01993400
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 98
    Electronic Resource
    Electronic Resource
    Die gravitationelle Deklination, ihre Bestimmung und ihre Elimination (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 117-123 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Résumé Le déclinaison gravitationelle apparaît ici comme analogue à la déclinaison magnétique. Le théodolite photographique enrégistreur utilisé avec des signaux horaires radiotélégraphiques spéciaux permet par une méthode de simultanéité, appliquée à deux stations de campagne, sa détermination et son élimination rélativement à des directions géodésiques. La méthode est basée sur des équations linéaires et ne demande que des mesures horizontales par rapport à un système simple d'étoiles sans avoir recours aux pendules transportables. Elle fournit probablement une exactitude bien améliorée et une vitesse plusieurs fois plus grande comparées à l'état actuel.
    Notes: Summary The gravitational declination appears here as the analogue of the wellknown magnetic declination. The photographic recording theodolit in connection with a high frequency impulse transmitter allows, by a method of simultaneousness on two fieldstations, its direct and connected measurement and its elimination with regard to geodetic directions. The method has been based on linear equations, with the only request of horizontal angle measurements to a plain system of stars, abstracting from any transportable clocks. The method promises a higher accuracy and a multiple as great working velocity, comparatively to the state at present.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01993399
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 99
    Electronic Resource
    Electronic Resource
    Die theoretische Bestimmung der Laufzeit (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 144-150 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary By substituting in an allowed manner the actual waves with plane waves and considering that any segments of the trajectories between the same wave fronts are isochronic ways for the vibrations: on derives the well known travel-time formulas quite plainly without the tiresome geometrical calculations applied hitherto.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01993402
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 100
    Electronic Resource
    Electronic Resource
    Libri nuovi (1951)
    Springer
    Pure and applied geophysics 19 (1951), S. 232-236 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01993414
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...