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  • Springer  (784)
  • 2020-2024  (1)
  • 2005-2009  (149)
  • 1990-1994  (309)
  • 1980-1984  (173)
  • 1970-1974  (87)
  • 1965-1969  (45)
  • 1930-1934  (20)
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Language
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Laboratory evaluation of parasitic hymenoptera used in attempts to biologically control aphid pests of crops in Australia (1992)
    Springer
    Entomologia experimentalis et applicata 63 (1992), S. 177-185 
    Details
    ISSN: 1570-7458
    Keywords: Parasitic hymenoptera ; biological control ; aphid pests
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract As an integral part of a programme to attempt the biological control of several crop-infesting aphid pests in Australia by the introduction of specific hymenopterous parasites, a laboratory technique to try to predict their likely effectiveness in the field, was developed with the aim of improving selection of natural enemies in future. It was based on demonstrating whether the parasites attack a greater proportion of their hosts with increased host density, i.e. whether they show a Type 3 functional response (Holling, 1959). To overcome the problem of super-parasitisation at low densities when a parasite is confined with aphids on one plant (van Lenteren & Bakker, 1976) we used several plants in a large cage, all with the same density of host aphids. A parasite released into such a cage searches for and attacks the aphids on one plant, then leaves it to repeat the process on a second plant, and so on. After a standard exposure time the parasitisation rate is estimated separately for the aphids on each plant and the average performance of the parasite calculated. Using this technique for seven parasites introduced into Australia for biological control of crop aphids, only one, Aphidius salicis Halliday, attacking carrot aphid showed a Type 3 response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343577
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  • 2
    Electronic Resource
    Electronic Resource
    Male size, mating success, and breeding habitat partitioning in the whitespotted sawyer Monochamus scutellatus (Say) (Coleoptera: Cerambycidae) (1982)
    Springer
    Oecologia 55 (1982), S. 258-263 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The whitespotted swayer Monochamus scutellatus (Say) (Coleoptera: Cerambycidae) breeds in recently killed conifers in northeastern North America, especially white pine Pinus strobus L. We cut down 4 white pines in Pocahontas County, West Virginia, in June 1981, in order to study the behavior of sawyers attracted to the trees. Far greater numbers of both male and female sawyers were attracted to the largest of the trees cut. At all trees, females preferred the parts of the tree of greater circumference. These preferences may be related to greater larval survival in large-circumference regions. Male and female numbers at breeding site peaked at about 1200–1500 h EST; at this time, males generally outnumbered females by about 2:1. We placed males in 3 size classes: L (〉2.0 cm), M (≦2.0 cm, ≧1.8 cm), and S (〈1.8 cm). At the largest of our 4 trees, L males disproportionately frequented the portion of the trunk preferred by females. L males were far more successful than M and S males in mating and in agonistic encounters with other males. L males were thus apparently able to exclude smaller males from the preferred region to some extent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00384497
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  • 3
    Electronic Resource
    Electronic Resource
    Adaptive evolution in the rat olfactory receptor gene family (1993)
    Springer
    Journal of molecular evolution 36 (1993), S. 249-254 
    Details
    ISSN: 1432-1432
    Keywords: Adaptive evolution ; Olfactory receptor ; Multigene families
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Comparison of DNA sequences of the rat (Rattus norvegicus) olfactory receptor gene family revealed an unusual pattern of nucleotide substitution in the gene region encoding the second extracellular domain (E2) of the protein. In this domain, nonsynonymous nucleotide differences between members of this subfamily that caused a change in amino acid residue polarity were over four times more frequent than nonsynonymous differences that did not cause a polarity change. This nonrandom pattern of nucleotide substitution is evidence of past directional selection favoring diversification of the E2 domain among members of this subfamily. This in turn suggests that E2 may play some important role in the functions unique to each member of the olfactory receptor family, and that it may perhaps be an odorant binding domain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00160480
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  • 4
    Electronic Resource
    Electronic Resource
    Book reviews (1992)
    Springer
    World journal of microbiology and biotechnology 8 (1992), S. 550-551 
    Details
    ISSN: 1573-0972
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01201962
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  • 5
    Electronic Resource
    Electronic Resource
    An attempt to anticipate biological control ofDiuraphis noxia (Hom., Aphididae) (1994)
    Springer
    BioControl 39 (1994), S. 211-223 
    Details
    ISSN: 1573-8248
    Keywords: Diuraphis noxia ; Aphelinus varipes ; Australia ; anticipating biological control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Pour répondre à la menace que représente pour la céréaliculture australienne la dispersion mondiale deDiuraphis noxia (Mordvilko), il a été procédé à un essai de lutte biologique préventive par l'introduction d'un parasitoïde oligophageAphelinus varipes (Foerster) dans la biocénose aphidienne présente actuellement sur les céréales d'Australie. Des précisions sont données sur l'origine du parasitoïde utilisé, son introduction, son élevage et son lâcher en Australie, ainsi que sur les études connexes au champ et en laboratoire.A. varipes ne semble pas s'être acclimaté jusqu'à maintenant; les causes possibles sont analysées et discutées.
    Notes: Abstract Responding to the threat posed to the Australian wheat industry by the world-wide spread of the Russian wheat aphid,Diuraphis noxia (Mordvilko), an attempt to anticipate its biological control was made by introducing its oligophagous hymenopteran parasiteAphelinus varipes (Foerster) into the current Australian cereal aphid community. Details, of the source of the parasite material and its introduction, mass-rearing and release in Australia, together with follow-up studies in the field and laboratory are given. No evidence of establishment has been found so far and the possible reasons for this are explored and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02372359
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  • 6
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    Male size, mating success, and breeding habitat partitioning in the whitespotted sawyer Monochamus scutellatus (Say) (Coleoptera: Cerambycidae) (1982)
    Springer
    Details
    Publication Date: 1982-11-01
    Print ISSN: 0029-8549
    Electronic ISSN: 1432-1939
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
  • 7
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    Characterization of a TeflonÒcoated semiconductor detector flow cell for monitoring of pertechnetate in groundwater (2006)
    Springer
    Details
    Publication Date: 2006-01-01
    Print ISSN: 0236-5731
    Electronic ISSN: 1588-2780
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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    PAPER CURRENT
  • 8
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    Quantum Computing for the Quantum Curious (2021)
    Springer Nature | Springer
    Details
    Publication Date: 2024-04-05
    Description: This open access book makes quantum computing more accessible than ever before. A fast-growing field at the intersection of physics and computer science, quantum computing promises to have revolutionary capabilities far surpassing “classical” computation. Getting a grip on the science behind the hype can be tough: at its heart lies quantum mechanics, whose enigmatic concepts can be imposing for the novice. This classroom-tested textbook uses simple language, minimal math, and plenty of examples to explain the three key principles behind quantum computers: superposition, quantum measurement, and entanglement. It then goes on to explain how this quantum world opens up a whole new paradigm of computing. The book bridges the gap between popular science articles and advanced textbooks by making key ideas accessible with just high school physics as a prerequisite. Each unit is broken down into sections labelled by difficulty level, allowing the course to be tailored to the student’s experience of math and abstract reasoning. Problem sets and simulation-based labs of various levels reinforce the concepts described in the text and give the reader hands-on experience running quantum programs. This book can thus be used at the high school level after the AP or IB exams, in an extracurricular club, or as an independent project resource to give students a taste of what quantum computing is really about. At the college level, it can be used as a supplementary text to enhance a variety of courses in science and computing, or as a self-study guide for students who want to get ahead. Additionally, readers in business, finance, or industry will find it a quick and useful primer on the science behind computing’s future.
    Keywords: Quantum Physics ; Quantum Computing ; Computer Science, general ; Science Education ; Quantum Information Technology, Spintronics ; Computer Science ; Spintronics ; Open Access ; Introduction to quantum computing ; quantum computing textbook ; quantum computing for high school students ; introduction to quantum cryptography ; quantum gates ; quantum algorithms ; quantum superposition ; what is a qubit? ; quantum key distribution ; Quantum physics (quantum mechanics & quantum field theory) ; Mathematical theory of computation ; Teaching of a specific subject ; Science: general issues ; thema EDItEUR::P Mathematics and Science::PH Physics::PHP Particle and high-energy physics ; thema EDItEUR::U Computing and Information Technology::UY Computer science ; thema EDItEUR::J Society and Social Sciences::JN Education::JNU Teaching of a specific subject
    Language: English
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    Format: image/jpeg
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    E-BOOK
  • 9
    Electronic Resource
    Electronic Resource
    Tests of functional form in dynamic econometric models: Some empirical experience (1983)
    Springer
    Empirical economics 8 (1983), S. 63-69 
    Details
    ISSN: 1435-8921
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract Econometric theory has provided several rival tests of functional form specifications in economic relations, but there is little empirical experience in using many of them. This note reports some practical applications, and compares the performance of various tests, in specifying dynamic econometric models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01973190
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  • 10
    Electronic Resource
    Electronic Resource
    Muonium (1992)
    Springer
    The European physical journal 56 (1992), S. S35 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A brief review is given of current and future fundamental topics in muonium research including the ground state hfs and Zeeman effect, the Lamb shift in the n=2 state and spontaneous conversion of muonium to antimuonium. The important 1S→2S transition is discussed by K. Jungmann in this volume. It is emphasized that muonium as an atom composed of two leptons is superior to hydrogen for many precise fundamental studies because of the complexities and uncertainties for hydrogen associated with the proton as a hadron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02426773
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