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  • 1
    Call number: MOP 30027
    Type of Medium: Monograph available for loan
    Pages: VI, 248 S. : graph. Darst., Kt.
    Uniform Title: Report upon the recent progress and present state of meteorology
    Language: German
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 88 (1966), S. 5465-5468 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 76 (1954), S. 3234-3236 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 75 (1953), S. 6363-6363 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 77 (1955), S. 4087-4090 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 75 (1953), S. 4870-4871 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1420-9098
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Description anatomique et histologique des organes du tube digestif deCamponotus pennsylvanicus mâles pris dans leurs nids durant le mois de mai ou saisis pendant l'essaimage nuptial en juillet. La position des organes et leur histologie sont semblables à celles qui ont été déjà décrites pour lesCamponotus ouvrières. Dans le ventriculus du mâle, pourtant, les cellules épithéliales sont plus longues et leur forme est quelque peu différente de celles de l'ouvrière. Tous les organes digestifs gastriques du mâle contiennent de la nourriture. La plupart des mâles disséqués avaient 18 tubes de Malpighi; d'autres en avaient 20, un en avait 23; dans ce dernier, il y avait des tubulibranches. Chez les mâles essaimants, la plupart des organes digestifs gastriques sont affaissés ou réduits en diamètre. Le jabot, le gésier et le ventriculus reposent pratiquement sur le fond des trois premiers segments gastriques; cette position libère de grands espaces dans la partie antéro-dorsale de l'abdomen. Le système digestif est vide de nourriture. Les cellules épithéliales du ventriculus sont en dégénérescence et la cavité de cet organe est remplie de grains intensément colorables par l'hématoxyline. Il y a des différences entre le ventriculus deC. pennsylvanicus, décrit ici, et celui deAnergates atrautulus, décrit parMeyer (1955).
    Abstract: Zusammenfassung Die Anatomie und Histologie der Verdauungsorgane im Gaster des männlichenCamponotus pennsylvanicus werden beschrieben auf Grund von Exemplaren, die im Mai aus dem Nest genommen und im Juli während der Hochzeitsflug gefangen wurden. Die Verteilung der Organe und ihre Histologie sind ähnlich denen der Arbeiter vonCamponotus, die schon früher beschrieben wurden. Im männlichen Mitteldarm sind allerdings die Epithelzellen höher und ihre Form ist etwas anders als im Mitteldarm des Arbeiters. Nahrung ist vorhanden in allen männlichen Verdauungsorganen des Gasters. Die meisten untersuchten Männchen hatten 18 Malpighische Gefässe, einige hatten 20 und eines hatte 23; in letzterem Falle war einer der Gefässe verzweigt. In den Männchen in Hochzeitsflug sind die meisten Verdauungsorgane des Gasters zusammengefallen, oder ihr Durchmesser ist reduziert. Der Kropf, der Vormagen und der Mitteldarm liegen praktisch am Boden der drei ersten gastralen Segmente. Dieser Zustand läßt große Räume in der dorsalen Vorderende des Gasters frei. Das System enthält keine Nahrung. Die Epithelzellen des Mitteldarms degenerieren und das Lumen dieses Organs ist voll mit basophilen Körnchen. Es bestehen Unterschiede zwischen dem hier beschriebenen Mitteldarm vonC. pennsylvanicus und dem vonAnergates atratulus, welcher vonMeyer (1955) beschrieben wurde.
    Notes: Summary The anatomy and histology of the digestive organs in the gaster ofCamponotus pennsylvanicus males are described for those taken from nests during the month of May and for those captured when they were swarning for the nuptial flight in July. The arrangement of the organs and their histology are similar to that which has already been described for theCamponotous workers. In the male ventriculus, however, the epithelial cells are taller and their shapes somewhat different from those in the worker. There is food in all themale gastral digestive organs. Most males dissected had 18 Malpighian tubules, some had 20, and one had 23; in this latter case, one was branched. In the swarming males most of the gastral digestive organs are collapsed or reduced in diameter. The crop, proventriculus, and ventriculus are practically lying on the floor of the first three gastral segments; this condition leaves large spaces in the dorsal anterior end of the gaster. The system is empty of food. The epithelial cells of the ventriculus are degenerating, and the lumen of this organ is filled with basophilic-staining granules. There are differences between the midguts ofC. pennsylvanicus, here described, and ofAnergates atratulus, described byMeyer (1955).
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 17 (1977), S. 0 
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Actuarial data on the progress through the life-cycle and the death of individual plants of Senecio jacobaea in permanent pasture were obtained over a period of one year by repeated mapping of all the plants in twenty permanent quadrats. The data were used to construct a model of population flux and mortality in a hypothetical population in which germination, maturation and death were constant from year to year and equal to those in the real population in the year of study. In the hypothetical population 57% of all plants died as seedlings. 35% as vegetative rosettes and 8% immediately after flowering. Of plants which flowered in the first 2 years or survived into a third year 8% were annuals or winter annuals, 39% were biennials and 53% were perennials.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 17 (1977), S. 0 
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Infestations of marsh ragwort, Senecio aquaticus Huds., in established ley grassland were sprayed at the rosette stage in April or May with MCPA, 2,4-D, asulam or a 2,4-D asulam mixture. All treatments gave better control in the year after spraying than in the year of spraying. The most effective herbicide was 2,4-D ester at 1–68 or 1–12 kg/ha with or without the incorporation of asulam at 1–12 kg/ha. MCPA at 1–68 kg/ha was less effective, especially in the year of spraying and asulam alone at 1-12 kg/ha gave consistently the poorest control of all treatments. Spraying in May gave better control in the year of spraying than April application, but in the year after spraying date of application made no difference to the degree of control. S. aquaticus at the various sites differed in general susceptibility to herbicides in the year of spraying, but in the year after spraying these differences disappeared.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 18 (1978), S. 0 
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A range of herbicides was sprayed in October 1976 or May 1977 on grassland infested with S. jacobaea. Control, measured by reduction in the number of flowering stems in July 1977, was extremely good with all herbicides, October spraying gave 99% control of 5. jacohaea and is provisionally recommended for grassland which is to be cut for silage. Lutte contre Senecio jacobaea L. (séneçonjacobée) parun traitement herbicide d'automne ou de printempsUne série d'herbicides ont été appliqués en octobre 1976 ou en mai 1977 sur des herbages infestés de séneçon jacobée. L'éfficacité, mesurée par la réduction du nombre de tiges fleuries en juillet 1977, a été extrêmement bonne avec tous les herbicides. Le traitement d'octobre a détruit 99% de S. jacobaea; il est provisoirement recommande pour les prairies de fauche dont la recolte doit etre ensilee. Bekümpfung von Senecio jacobaea L. (Jakohs-Kreuzkraut) durch Herbizidanwendung im Herbst oder FrühjahrAuf Grünland, das mit Jakobs-Kreuzkraut verseucht war, wurde eine Reihe von Herbiziden im Oktober 1976 oder im Mai 1977 eingesetzt. Die Bekämpfung, gemessen am Rückgang blühender Pflanzen im Juli 1977, war mit alien Herbiziden äusserst zufriedenstellend. Die Spritzung im Oktober ergab für S. jaco baea einen Bekämpfungsgrad von 99% und wird für Grünland, das für Silagegewinnung genutzt wird, vorläufig empfohlen.
    Type of Medium: Electronic Resource
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