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
  • 1
    facet.materialart.
    Unknown
    Buchbesprechungen (1975)
    Springer
    Details
    Publication Date: 1975-03-01
    Print ISSN: 0044-2275
    Electronic ISSN: 1420-9039
    Topics: Mathematics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Observations on the geographic variation of the marine coastal fish Spinachia spinachia (1978)
    Springer
    Details
    Publication Date: 1978-01-01
    Print ISSN: 0025-3162
    Electronic ISSN: 1432-1793
    Topics: Biology
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    Electronic Resource
    Electronic Resource
    Observations on the geographic variation of the marine coastal fish Spinachia spinachia (1978)
    Springer
    Marine biology 47 (1978), S. 297-302 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Spinachia spinachia L., the fifteen-spined or sea stickleback, is a little known annual fish widely distributed throughout European coastal waters. Although known to be morphologically variable, no studies of the extent or patterns of population differentiation had as yet been undertaken. Investigation of over 30 well-scattered samples revealed meristic differences which correlate well with breeding season temperatures. This relationship is probably complex, for although temperature changes linearly, meristic counts showed evidence of a V-shaped (or curvilinear) pattern. Comparison with studies on other European stickleback species suggests that selection rather than phenetic induction has produced this trend in variation. Some information on the diet of this species is also presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541007
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Buchbesprechungen (1975)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 26 (1975), S. 257-260 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01591517
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Beiträge zur Analyse nuklearer Rohmaterialien. IX (1975)
    Springer
    Microchimica acta 64 (1975), S. 569-579 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary A method is described for the separation ofμg-amounts of copper from large amounts of uranium and of making the end-determination accessible by means of atomic absorption spectrophotometry. The separation of the copper from uranium and from other foreign ions present in the uranium matrix is brought about through adsorption of the copper on a column of the strongly basic anionexchanger Dowex 1, X8 from a mixture that consists of 90 vol.% methanol and 10 vol.% hydrobromic acid. After the adsorbed copper is eluted by means of 3M hydrochloric acid the copper is determined by the atomic-absorption-spectrophotometric procedure. The method was applied for the determination of copper in standard specimens of U3O8 (1 to 11 p. p. m. Cu) and Yellow Cake (4 to 25 p. p. m. Cu).
    Notes: Zusammenfassung Eine Methode wurde beschrieben, um μg-Mengen Kupfer von großen Mengen Uran zu trennen und der Endbestimmung mittels Atomabsorptionsspektrophotometrie zugänglich zu machen. Die Abtrennung des Kupfers von Uran und anderen in der Uranmatrix anwesenden Fremdionen erfolgt durch Adsorption des Kupfers auf einer Säule des stark basischen Anionenaustauschers Dowex 1, X8 aus einer Mischung bestehend aus 90 Vol.% Methanol und 10 Vol.% 1,5-m Bromwasserstoffsäure. Nach Elution des adsorbierten Kupfers mittels 3-m Salzsäure wird dieses atomabsorptionsspektrophotometrisch bestimmt. Die Methode wurde zur Bestimmung von Kupfer in U3O8-Standardproben (l bis 11 p. p. m. Cu) und Yellow-Cake-Proben (4 bis 25 p. p. m. Cu) herangezogen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01219228
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Beiträge zur Analyse nuklearer Rohmaterialien. XIV (1976)
    Springer
    Microchimica acta 65 (1976), S. 503-512 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Analytical scheme for the determination of ppm-amounts of uranium, thorium, iron, vanadium, copper, barium, and strontium as well as mgamounts of iron in rocks is described. In this procedure the rock sample is decomposed by means of perchloric acid-hydrofluoric acid mixture and then the uranium, thorium, vanadium, copper and iron are separated from the accompanying elements by means of the anion exchanger Dowex 1-X8. The elements are determined in the corresponding eluates by applying fluorimetry (uranium), atomic absorption spectrophotometry (vanadium, copper, iron). The determination of barium and strontium is conducted by atomic absorption-spectrophotometry following alkaline decomposition of the rock sample. The method was used for the determination of the named elements in standard rock samples, numerous rocks coming from Carinthia and Tyrol and those originating in Hawai (Molokai).
    Notes: Zusammenfassung Ein Analysenschema zur Bestimmung von ppm-Mengen Uran, Thorium, Vanadin, Kupfer, Barium und Strontium sowie mg-Mengen Eisen in Gesteinen wurde beschrieben. Bei dieser Methode wird die Gesteinsprobe mittels Perchlorsäure-Flußsäure aufgeschlossen; danach werden Uran, Thorium, Vanadin, Kupfer und Eisen mittels Anionenaustausches auf Dowex 1-X8 von den Begleitelementen getrennt. In den entsprechenden Eluaten werden die Elemente unter Anwendung von Fluorometrie (Uran), Spektralphotometrie (Thorium) und Atomabsorptionsspektrophotometrie (Vanadin, Kupfer und Eisen) bestimmt. Die Bestimmung von Barium und Strontium erfolgt auf atomabsorptionsspektrophotometrischem Weg nach alkalischem Aufschluß der Gesteinsprobe. Die Methode wurde zur Bestimmung der genannten Elemente in Standardgesteinsproben, zahlreichen Gesteinen aus Kärnten-Osttirol und solchen aus Hawai (Molokai) herangezogen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01218283
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Beiträge zur Analyse nuklearer Rohmaterialien. VIII (1975)
    Springer
    Microchimica acta 64 (1975), S. 413-424 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary A procedure is described for the separation of μg quantities of lead from large amounts of uranium and for making accessible an end-determination by means of atomic absorption spectrophotometry. The separation of the lead from the uranium and from other foreign ions present in the uranium matrix is accomplished by adsorption on a column of the strongly basic anion exchanger Dowex 1, X8 from 2M hydrobromic acid. Following elution of the adsorbed lead by means of 6M hydrochloric acid, the lead is determined either by means of atomic absorption spectrophotometry or by spectrophotometry with employment of the dithizone method. The procedure was employed for the determination of lead in standard specimens of U3O8 (0.17 to 1.8 p. p. m. Pb) and of Yellow Cake (7.8 to 88 p. p. m. Pb). A good agreement of the results was attained in all cases.
    Notes: Zusammenfassung Eine Methode wurde beschrieben, umμg-Mengen Blei von großen Mengen Uran zu trennen und der Endbestimmung mittels Atomabsorptionsspektrophotometrie zugänglich zu machen. Die Abtrennung des Bleis von Uran und anderen in der Uranmatrix anwesenden Fremdionen erfolgt durch Adsorption auf einer Säule des stark basischen Anionenaustauschers Dowex 1, X8 aus 2-m Bromwasserstoffsäure. Nach Elution des adsorbierten Bleis mittels 6-m Salzsäure wird es atomabsorptionsspektrophotometrisch oder auch spektrophotometrisch unter Anwendung der Dithizonmethode bestimmt. Die Methode wurde zur Bestimmung von Blei in U3O8-Standardproben (0,17 bis 1,8 p. p. m. Pb) und Yellow-Cake-Proben (7,8 bis 88 p. p. m. Pb) herangezogen. In allen Fällen wurde eine gute Übereinstimmung der Resultate erzielt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01219207
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Beiträge zur Analyse nuklearer Rohmaterialien. XI (1976)
    Springer
    Microchimica acta 65 (1976), S. 263-266 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The previously described method for the atomic absorption spectrophotometric determination of copper was modified somewhat and then employed for the determination of this element in radioactive ores (60 to 99 ppm Cu) and in geochemical standard samples (6 to 70 ppm Cu).
    Notes: Zusammenfassung Die früher beschriebene Methode zur atomabsorptionsspektrophotometrischen Bestimmung des Kupfers wurde etwas modifiziert und zur Bestimmung dieses Elementes in radioaktiven Erzen (60 bis 99 ppm Cu) und geochemischen Standardproben (6 bis 70 ppm Cu) herangezogen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01217833
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 673-680 
    Details
    ISSN: 1573-1561
    Keywords: Trichogramma ; Hymenoptera ; Trichogrammatidae ; kairomone ; Heliothis zea ; biological control ; pest management ; parasitoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A kairomone from adultHeliothis zea (Boddie) scales is an important factor in the host selection process ofTrichogrammapretiosum Riley. If the host density is sufficiently high (i.e., 1 egg/500 cm2) and higher), a complete coverage or solid treatment of kairomone spray may be the optimum for increasing parasitization rates, but this is not the case at lower host densities (e.g., 1 egg/2000 cm2). At the lower densities, the kairomone must be distributed in such a way as to retain the parasitoids in the target area without inhibiting their movement from one ovi-position site to the next. Simulated moth scale particles appear to fill this need since their density can be regulated to provide the optimum frequency of parasitoid stimulation and thus maximum rates of parasitization at prevailing host densities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00986552
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Kairomones and their use for management of entomophagous insects: II. Mechanisms causing increase in rate of parasitization byTrichogramma spp. (1975)
    Springer
    Journal of chemical ecology 1 (1975), S. 349-360 
    Details
    ISSN: 1573-1561
    Keywords: Trichogramma achaeae ; Heliothis zea ; biological control ; kairomones ; pest management ; parasitoids ; host finding ; insect behavior ; pheromones ; behavior chemicals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract When the effect of the kairomone, tricosane, on parasitization byTrichogramma achaeae Nagaraja and Nagarkatti of eggs ofHeliothis zea (Boddie) was studied in petri dish tests, the greatest percentage parasitization ( $$\mathop X\limits^\_$$ = 64%) was obtained if the entire filter paper was treated. Treatment of smaller areas (about the eggs) resulted in decreased parasitism. In the greenhouse, highest parasitization ( $$\mathop X\limits^\_$$ = 71%) byT. pretiosum (Riley) ofH. zea eggs placed on pea seedlings grown in pie pans was obtained if the whole pan was treated; lowest parasitism ( $$\mathop X\limits^\_$$ = 29%) occurred when the pans were untreated. Parasitization was intermediate ( $$\mathop X\limits^\_$$ = 52%) in other pans treated only at selected spots. Dissections ofH. zea eggs collected from kairomonetreated and untreated field plots revealed that eggs ofTrichogramma spp. were more efficiently distributed (less superparasitism) among host eggs in treated plots. These kairomones increase parasitization ofTrichogramma spp. by releasing and continuously reinforcing an intensified searching behavior rather than by attracting and guiding the parasite directly to the host.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988837
    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...