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  • Electronic Resource  (24)
  • 2000-2004  (13)
  • 1965-1969  (10)
  • 1915-1919  (1)
  • 11
    Electronic Resource
    Electronic Resource
    DIFFUSE THINNING OF HAIR IN IODIDE-INDUCED HYPOTHYROIDISM (1967)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 79 (1967), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.1967.tb11464.x
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  • 12
    Electronic Resource
    Electronic Resource
    Large-scale genetic differentiation of Pagrus pagrus in the Atlantic (2003)
    Oxford, UK : Blackwell Science Ltd
    Journal of fish biology 62 (2003), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Red porgy Pagrus pagrus from the north-eastern, north-western and south-western Atlantic were found to be genetically distinct as determined by mitochondrial DNA analysis. There were no shared composite restriction fragment haplotypes, and nucleotide sequence differences averaged 2% among these locations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1095-8649.2003.00110.x
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  • 13
    Electronic Resource
    Electronic Resource
    Sensitivity to chemically diverse phagostimulants in a single gustatory neuron of a polyphagous caterpillar (2000)
    Springer
    Journal of comparative physiology 186 (2000), S. 13-19 
    Details
    ISSN: 1432-1351
    Keywords: Key words Catalpol ; Grammia ; Gustation ; Iridoid glycoside ; Phagostimulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Caterpillars of the arctiid moth, Grammia geneura, are polyphagous, but species of Plantago are amongst their preferred food plants. A neuron in the medial styloconic sensillum on the galea has been shown to have a general phagostimulatory function. Experiments with binary mixtures and cross-adaptation have demonstrated that it responds to some sugars, to several amino acids, and also to catalpol. Catalpol is a plant secondary compound in Plantago and a phagostimulant for the caterpillars. The possible significance of combining sensitivity to nutrient compounds with sensitivity to a secondary compound is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003590050002
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  • 14
    Electronic Resource
    Electronic Resource
    Demonstration of Strain-hardening of Steel (1915)
    [s.l.] : Nature Publishing Group
    Nature 94 (1915), S. 589-589 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE accompanying photograph (Fig. 1) represents the side of a steel bar. The bar was first marked by a punch in the way shown, and the punch marks were afterwards completely filed out. The side was then polished and the bar pulled in a testing machine beyond the elastic limit of the material. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/094589c0
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  • 15
    Electronic Resource
    Electronic Resource
    Herbicide Spray Drift Odor: Measurement and Toxicological Significance (2000)
    Springer
    Archives of environmental contamination and toxicology 38 (2000), S. 390-397 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. The toxicological significance of exposure of members of the public to spray drift odors of four herbicide formulations (three 2,4-dichlorophenoxyacetic [2,4-D] acid derivatives and one MCPA [4-methyl-2-chlorophenoxyacetic acid] derivative) has been studied using a combination of novel odor measurement and classic residue analysis techniques. The mean odor concentrations, generated during the spraying of the commercial herbicide formulations under simulated aerial application conditions, were about twofold higher for 2,4-D ethylhexyl ester (22,500 OUc/m3) and MCPA (30,100 OUc/m3) than for 2,4-D butyl ester (12,400 OUc/m3) and 2,4-D amine (11,800 OUc/m3). Detailed investigations determined that the odors are due to trace manufacturing impurities and additives in the commercial formulations, whereas the herbicide active ingredients are odorless. Measured airborne herbicide active ingredient concentrations under the simulated aerial application conditions were all below their respective occupational safety and health TLV-TWA values, indicating that exposures of toxicological significance as a result of spray drift are unlikely.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449910052
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  • 16
    Electronic Resource
    Electronic Resource
    Dependence on Temperature of the Conduction Velocity of the Action Potential of the Squid Giant Axon (1967)
    [s.l.] : Nature Publishing Group
    Nature 213 (1967), S. 1143-1144 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The conduction velocity of the action potential of the isolated giant axon has been measured over the temperature range - 1 to 4-40 C. The action potentials were recorded by two glass microelectrodes filled with 3 molar potassium chloride (resistance 10-20 MQ) inserted into the axon so that they ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2131143a0
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  • 17
    Electronic Resource
    Electronic Resource
    Proliferative Cycle and Fate of Cell Nuclei in Wool Follicles (1966)
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 477-479 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE fate of nuclear material and cellular structures in keratinizing cells is uncertain1. Deoxyribonucleic acid (DNA) disappears during keratinization, but it is not known whether the degradation products are retained by the keratinized cells, resorbed into the animal, or lost as epidermal detritus ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/212477a0
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  • 18
    Electronic Resource
    Electronic Resource
    Population structure of the wreckfish Polyprion americanus determined with microsatellite genetic markers (2000)
    Springer
    Marine biology 137 (2000), S. 1077-1090 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  We examined population structure in the wreckfish, Polyprion americanus, by assaying six microsatellite loci in 422 individuals collected throughout the geographic range. Eighteen hapuku, P. oxygeneios, were assayed at the same loci for use as an outgroup. Expected heterozygosities ranged from 0.49 to 0.88 and averaged 0.66. Allele-frequency distributions at those loci indicated that samples from the eastern North Atlantic, western North Atlantic and the Mediterranean were genetically similar, confirming the pattern seen in a previous analysis of mitochondrial DNA (mtDNA) restriction fragment length polymorphisms (RFLPs). Both mtDNA and microsatellite studies differentiated northern and southern wreckfish stocks. However, in contrast to the mtDNA studies, allelic variation at microsatellite loci clearly differentiated wreckfish from two Southern Hemisphere locations, Brazil and the South Pacific. Far more genetic variation was observed at microsatellite loci than with mtDNA RFLPs (haplotype diversity averaged 0.01), and we saw more evidence of population structure with the microsatellite loci. The differentiation between southern and northern wreckfish supports the distribution records, which indicate that wreckfish do not occur in the tropics. Temperature profiles and current patterns throughout the southern oceans apparently also prevent significant gene flow between the South Pacific and Brazilian samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002270000392
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  • 19
    Electronic Resource
    Electronic Resource
    The yrast spectroscopy of neutron-rich nuclei produced in deep-inelastic processes (2003)
    Springer
    The European physical journal 20 (2003), S. 111-112 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The highly sensitive GASP array at the INFN Legnaro Laboratory was used to study the $\gamma$ -ray de-excitation of neutron-rich nuclei produced in the deep-inelastic processes which occur when 230 MeV 36S ions interact with a target of 176Yb. Yrast decay schemes were identified in over forty target-like fragments and in over twenty projectile-like fragments. Analysis of the data has resulted in extensions to the yrast decay sequences of the target-like species, 176Hf, 166Er, 172Yb, and 152Sm. New transitions have also been observed in a number of projectile-like species including 34P and 41Cl. Experimental results are compared with the results of shell model calculations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epja/i2002-10334-y
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  • 20
    Electronic Resource
    Electronic Resource
    Taste Sensitivity of Insect Herbivores to Deterrents is Greater in Specialists Than in Generalists: A Behavioral Test of the Hypothesis with Two Closely Related Caterpillars (2000)
    Springer
    Journal of chemical ecology 26 (2000), S. 547-563 
    Details
    ISSN: 1573-1561
    Keywords: Heliothis virescens ; Heliothis subflexa ; caterpillar ; diet breadth ; deterrent compound ; feeding behavior ; postingestive toxicity ; plant secondary metabolite
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Sensitivity of caterpillars of Heliothis virescens, a generalist, and H. subflexa, a specialist, to eight different plant secondary compounds was examined behaviorally. The compounds were nicotine hydrogen tartrate, hordenine, caffeine, sinigrin, linamarin, arbutin, chlorogenic acid, and salicin. All compounds deterred feeding, at least at the higher concentrations, but the generalist was less affected than the specialist. Thus the hypothesis that specialists have greater sensitivity to deterrents than generalists was supported. In most cases deterrence occurred on first encounter, indicating that the response was sensory; in some cases short-term postingestive effects also appeared to play a role. The larger quantities of deterrent-containing food ingested by H. virescens sometimes resulted in measurable postingestive effects during the second control test. This did not occur in H. subflexa, which more commonly rejected the deterrent-containing food on first contact. The contrast between the species is discussed in relation to tradeoffs involved in different diet breadths.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005430010314
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