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  • Articles  (38)
  • 1975-1979  (38)
Collection
Year
Journal
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Biochemistry 15 (1976), S. 1645-1649 
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Abacus 12 (1976), S. 0 
    ISSN: 1467-6281
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant pathology 27 (1978), S. 0 
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Light-trap catches of five tortricid species were recorded at orchard sites in Kent over an 11-year period. The dates on which moths of Hedya nubiferana (Haw.), Cydia pomonella (L.) and Archips podana (Scop.) were caught in light traps were strongly correlated with accumulated temperatures in day-degrees above a base of 8°C. The correlation was less good for catches of Pandemis heparana (Denis & Schiff.) and it was slightly better for those of Cydia pomonella above 10°C than above 8°C. The data were insufficient to calculate temperature sums for catches of Adoxophyes orana (Fisch. v. Rösl.). Moth catches of all five species showed differences between years in the timing of first and second generations. The dates of first catches are compared with dates estimated from the following temperature sums: for H. nubiferana 226 day-degrees above 8°C, for C. pomonella 268 day-degrees above 8°C and 149 day-degrees above 10°C, for Archips podana 326 day-degrees above 8°C and for P. heparana 386 day-degrees above 8°C. In the 11-year period, estimated dates of first catch were within ± 5 days of first actual catch of moths in light traps in nine years for C. pomonella, eight years for H. nubiferana and A. podana, but only five years for P. heparana.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 280 (1979), S. 630-630 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR, - Mellanby (Nature 275, 82; 1978) attacks opponents of 'factory farming' for their errors in animal behaviour, as well as for their own behaviour at his talk. First, while not wishing to justify the human behaviour he describes, it should be borne in mind that many in the environment ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 270 (1977), S. 230-232 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Preston et al.1 have described a pilot survey carried out to measure the concentrations of selected heavy metals in seawater, suspended matter and biological indicators from British coastal waters. Since then analytical methods have been refined and more surveys carried out. Recently, because of ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 268 (1977), S. 402-402 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Second Conference on Forecasting in Crop Protection was held in Paris on June 21-24 by the European and Mediterranean Plant Protection Organisation. THE ability to forecast reliably the timing and intensity of pest and disease attack on crops is crucial to reducing unnecessary and undesirable ...
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 31 (1975), S. 1370-1371 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Data on haemoglobin do not support suggestions that the aoudadAmmotragus lervia is close to a hypothetical ancestor to the genusOvis in general or to the domesticated sheepOvis aries in particular.Ammotragus haemoglobin is more like that from the domestic goatCapra hircus than that from the domestic sheepOvis aries, but also shows some unique characteristics, perhaps more specialized than primitive.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Puppen von Rhagoletis cerasi L. aus üOsterreich, der Slovakei, der Schweiz und aus Italien, welche aus infizierten Kirschen gewonnen worden waren, wurden wüahrend 155 Tagen bei 4\dg gelagert und anschliessend füur die Weiterentwicklung in 11 konstanten und 4 fluktuierenden Temperaturregimen untersucht. Keine Fliegen schlüupften nach 324 Tagen Inkubationsdauer bei 8\dg, wüahrend die durchschnittliche Schlüupfrate bei den üubrigen Temperaturbedingungen 84% betrug. Die beobachteten und berechneten Werte füur die Entwicklungsdauer bis zur Erreichung der Schlüupfraten von 10% und 50% sind nach Geschlechtern und Herküunften getrennt in Tabellen aufgefüuhrt. Lineare Regressionsgleichungen wurden berechnet füur die Kurven der Entwicklungsraten und verwendet füur die Berechnung der Entwicklungsnullpunkte und effektiven Temperatursummen. Weibliche Fliegen schlüupften früuher als Müannchen und Puppen aus Italien entwickelten sich von allen vier Herküunften am langsamsten. Berechnet auf der Basis eines durchschnittlichen Entwicklungsnullpunktes von 6.8\dg als Schwellenwert benüotigten die Weibchen der verschiedenen Herküunfte bis zum Erreichen der Schlüupfrate von 10% folgende Temperatursummen in Gradtagen: üOsterreich 331\dg, Slovakei 319\dg, Italien 359\dg und die Schweiz 321. Die entsprechenden Werte für das Erreichen des Zeitpunktes von Schlüpfbeginn, 50% und 90% Schlüpfrate sind ebenfalls in Tabellenform dargestellt. Der normalerweise füur Prognosezwecke verwendete Schwellenwert von 5\dg wurde zu Vergleichszwecken ebenfalls in die Analyse der experimentellen Daten einbezogen, doch zeigte es sich, dass er zu tief liegt. Die üUberprüufung der Prognosemethode in der Schweiz mittels Bodentemperaturen in 5 cm Bodentiefe unter Anwendung des neuen Schwellenwertes von 6.8\dg und der effektiven Temperatursumme von 321 Gradtagen füuhrte jedoch zu den gleichen Schlussfolgerungen wie die Verwendung des traditionellen Schwellenwertes von 5\dg und der Summe von 430 Gradtagen. Da die Berechnungen auf der Basis von 5\dg einfacher sind und gute üUbereinstimmung mit den Fangresultaten im Freiland zeigen, besteht keine Veranlassung füur die praktische Anwendung den alten Schwellenwert zu üandern.
    Notes: Abstract Pupae of Rhagoletis cerasi (L.) from Austria, Czechoslovakia, Switzerland and Italy were stored at 4° for 155 days and then transferred to eleven constant and four cycling temperature regimes until the flies emerged. No flies emerged in 324 days at 8° constant but mean emergence was 84% for the remaining regimes. Female flies emerged slightly earlier than males and flies from Italy were the last to start emerging. Reduced to a common mean base temperature of 6.8°, temperature sums in day degrees C to 10% emergence of female flies were 331 (Austria), 319 (Czechoslovakia), 359 (Italy) and 321 (Switzerland). The equivalent sums are also given for first, 50% and 90% emergence. When tested with soil temperature data from Switzerland 321 day degrees above 6.8° and 430 day degrees above 5° gave effectively the same estimates for practical forecasting purposes.
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  • 9
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    Menasha, Wis. : Periodicals Archive Online (PAO)
    The Accounting Review. 50:4 (1975:Oct.) 924 
    ISSN: 0001-4826
    Topics: Economics
    Description / Table of Contents: BOOK REVIEWS, EARL A. SPILLER, JR., Editor
    Notes: Departments
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  • 10
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    Menasha, Wis. : Periodicals Archive Online (PAO)
    The Accounting Review. 52:3 (1977:July) 576 
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