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  • Springer  (47)
  • Annual Reviews  (4)
  • American Association for the Advancement of Science (AAAS)  (2)
  • 1990-1994  (11)
  • 1985-1989  (32)
  • 1960-1964  (10)
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  • 1
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    Unknown
    Growth of diamond from atomic hydrogen and a supersonic free jet of methyl radicals (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-03-18
    Description: The growth of small ( approximately 10-micrometer) diamond particles (on 0.1-or 0.25-micrometer seed crystals) using an effusive glow discharge nozzle for H.and a separate supersonic pyrolysis jet for .CH(3) is reported. Laser micro-Raman, scanning electron microscopy, and x-ray photoelectron spectroscopy data are presented as evidence that well-crystallized diamond is indeed formed. Resonant multiphoton ionization spectroscopy is used as a diagnostic for the gas-phase chemistry indicating that the radical sources are clean and quantitative and that there is no detectable interconversion of .CH(3) to C(2)H(2) under the conditions of the experiment. Diamond growth is found at substrate temperatures greater than or equal to 650 degrees C with no marked increase in the rate of growth up to 850 degrees C. Acetylene does not give good quality diamond under similar conditions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, S S -- Minsek, D W -- Vestyck, D J -- Chen, P -- New York, N.Y. -- Science. 1994 Mar 18;263(5153):1596-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17744789" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
    facet.materialart.
    Unknown
    A rapid cold-hardening process in insects (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-12-04
    Description: Traditionally studies of cold tolerance in insects have focused on seasonal adaptations related to overwintering that are observed after weeks or months of exposure to low temperature. In contrast, an extremely rapid cold-hardening response was observed in nonoverwintering stages that confers protection against injury due to cold shock at temperatures above the supercooling point. This response was observed in nondiapausing larvae and pharate adults of the flesh fly, Sarcophaga crassipalpis, nondiapausing adults of the elm leaf beetle, Xanthogaleruca luteola, and the milkweed bug, Oncopeltus fasciatus. The rapid hardening response is correlated with the accumulation of glycerol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, R E Jr -- Chen, C P -- Denlinger, D L -- New York, N.Y. -- Science. 1987 Dec 4;238(4832):1415-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17800568" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
    Electronic Resource
    Electronic Resource
    Rheumatoid Factor and Immune Networks (1987)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Immunology 5 (1987), S. 109-126 
    Details
    ISSN: 0732-0582
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.iy.05.040187.000545
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    The Pharmacology and Toxicology of the Bone Seekers (1961)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 1 (1961), S. 369-396 
    Details
    ISSN: 0362-1642
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pa.01.040161.002101
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  • 5
    Electronic Resource
    Electronic Resource
    Tyrosine phosphate on paper chromatograms ofDrosophila melanogaster (1960)
    Springer
    Cellular and molecular life sciences 16 (1960), S. 410-411 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Es wird gezeigt, dass die auf zweidimensionalen Chromatogrammen vonDrosophila melanogaster auftretenden Ninhydrin-positiven Flecken, die als P1+P2 (Peptide) bezeichnet wurden, sehr viel freies Tyrosin-O-phosphat enthalten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02178836
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  • 6
    Electronic Resource
    Electronic Resource
    Changes in DNA and RNA during embryonic development of the merogonic combinationTriton palmatus (♀) ×Triton cristatus (♂) (1961)
    Springer
    Cellular and molecular life sciences 17 (1961), S. 177-178 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Der Gehalt an RNS und DNS früher Entwicklungsstadien des BastardmerogonsTriton palmatus (♀)×Triton cristatus ♂ wurde gemessen. Es zeigt sich, dass trotz der Kern-Plasmadisharmonie diese letale Kombination in der Lage ist, beide Nukleinsäuren zu synthetisieren.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02160368
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  • 7
    Electronic Resource
    Electronic Resource
    Experiments concerning the incorporation of labelled adenine into ribonucleic acid in normal sea urchin embryos and in the hybridParacentrotus ♀ xArbacia ♂ (1962)
    Springer
    Cellular and molecular life sciences 18 (1962), S. 522-524 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Inkubation der Seeigelkeime mit14C-Adenin ergab, dass bei reinen Arten der Einbau der markierten Substanz in die RNS von der Mesenchymblastula bis zum Pluteus eindeutig zunimmt. Parallel zur DNS-Synthese verläuft die Zunahme beiParacentrotus undSphaerechinus viel rascher als beiArbacia. Beim Bastard PA nimmt dieser Einbauprozess mit Beginn der morphogenetischen Hemmung (nach ca. 26 h) rasch ab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02151611
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  • 8
    Electronic Resource
    Electronic Resource
    Stress concentration factors due to the bending of a thick plate with circular hole (1989)
    Springer
    Archive of applied mechanics 59 (1989), S. 401-411 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht Für die Grundgleichungen einer Theorie 12. Ordnung für dicke Platten, bestehend aus einer biharmonischen Gleichung und vier Helmholtz-Gleichungen, werden in Polarkoordinaten Lösungen bestimmt, um Korrekturen zu früheren Ergebnissen nach Theorien geringerer Ordnung angeben zu können. Als Beispiel werden für eine unendliche, an zwei parallelen Seiten durch ein Biegemoment belastete Platte mit Kreisloch die Konzentrationsfaktoren für Biegemoment und Randspannung verglichen, die sich nach der hier benutzten Theorie und aus früheren Arbeiten von Alblas, Reissner und Cheng ergeben.
    Notes: Summary Solutions of a biharmonic equation together with four Helmholtz equations governing a twelfthorder thick plate theory in cylindrical coordinates are derived in a form suitable for finding corrections to previous lower-order thick plate results. As an example, for an infinite plate with a circular hole subjected to bending moments at two parallel outside edges, detailed comparisons of values of a stress couple concentration factor and a stress concentration factor are made between the present theory and previous results due to Alblas, Reissner, and Cheng.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00534307
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  • 9
    Electronic Resource
    Electronic Resource
    Biogenesis of yeast a-factor involves prenylation, methylation and a novel export mechanism (1992)
    Springer
    Antonie van Leeuwenhoek 61 (1992), S. 115-117 
    Details
    ISSN: 1572-9699
    Keywords: biogenesis ; pheromone a-factor ; post-translational modifications ; S. cerevisiae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00580617
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  • 10
    Electronic Resource
    Electronic Resource
    Evolution of shock wave surfaces and amplitudes in piezoelectric materials (1988)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 10 (1988), S. 331-346 
    Details
    ISSN: 0392-6737
    Keywords: Theory of electronic transport ; scattering mechanisms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto In questo lavoro si trattano i problemi generali della evoluzione delle ampiezze e superfici d'onda associate a discontinuità meccaniche ed elettriche nei materiali piezoelettrici. I risultati presentati sono importanti per onde d'urto che si propagano in tutti i materiali che obbediscono alle relazioni costitutive classiche della piezoelettricità, incluso come caso speciale l'elasticità anisotropica lineare. Si considera uno specifico esempio che riguarda un singolo cristallo BaTiO3. L'esempio illustra gli intricati risultati quantitativi che si possono ottenere come conseguenza delle analisi.
    Abstract: Резюме В этой статье рассматриваются общие проблемы эволюции фронтов и амплитуд ударных волн, связанных с механическими и электрическими разрывами в пьезоэлектрических материалах. Полученные реэультаты относятся к ударным волнам, распространяющимся во всех материалах, которые подчиняются классическим конститутивным соотношениям пьезоэлектричества, включая, как частный случай, линейную анизотропную упрутость. Как пример, рассматривается монокристалл BaTiO3.
    Notes: Summary The general problems of the evolution of wave surfaces and amplitudes associated with mechanical and electrical discontinuities in piezoelectric materials are dealt with in this paper. The results presented are relevant to shock waves propagating in all materials obeying the classical constitutive relations of piezoelectricity, including as a special case linear anisotropic elasticity. A specific example concerning BaTiO3 single crystal is considered. The example illustrates the intricate quantitative results which may be obtained as a consequence of the analyses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02450123
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