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  • 1
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    An unusual rhinoceros viper, Bitis nasicornis, from Ghana, West Africa (1968)
    In:  Zoologische Mededelingen vol. 43 no. 9, pp. 107-115
    Details
    Publication Date: 2024-01-12
    Description: The characters which serve to distinguish the Gaboon Viper (Bitis gabonica) from the Rhinoceros Viper (B. nasicornis) are examined in relation to a subadult female from Dabocrom, Ghana, which displays characters of both species. It is more like B. nasicornis than B. gabonica but the admixture of B. gabonica characters is probably the result of interbreeding.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 2
    Electronic Resource
    Electronic Resource
    The Two-Electron Oxidation of Metal Atom Cluster Species of the Type [M6X12]2+ (1965)
    s.l. : American Chemical Society
    Inorganic chemistry 4 (1965), S. 1491-1492 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50032a030
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of chromium and beryllium at the picogram level by gas chromatography-mass spectrometry (1972)
    s.l. : American Chemical Society
    Analytical chemistry 44 (1972), S. 616-618 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60311a044
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  • 4
    Electronic Resource
    Electronic Resource
    Composition of Guinea Keet Breast and Thigh Meat (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Guinea keets, reared to 12 wk on a modified turkey starter and grower diet, were processed like broilers and thigh and breast meat samples analyzed. Proximate analysis for breast and thigh meat without skin was: dry matter 25.4 and 24.0%; protein 22.7 and 19.4%; hexane extractables 0.86 and 2.2%; and ash 1.06 and 1.05% respectively. Total cholesterol in breast meat was 40.6 mg/100g raw tissue, and 62.1 mg in the thigh. Also included were analyses for Na, K, Ca, Mg, P, thiamin, riboflavin, niacin, pantothenic acid and the fatty acid profiles of the meat and skin. Guinea meat was found to be lower in fat, sodium and cholesterol and higher in potassium, phosphorus, thiamin, riboflavin, niacin and vitamin B6 than broiler meat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb07688.x
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  • 5
    Electronic Resource
    Electronic Resource
    Stem Cells in Hair Follicles (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 642 (1991), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1991.tb24388.x
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of Degeneration on the ‘Albumin’ Components of Human Muscle Extracts (1960)
    [s.l.] : Nature Publishing Group
    Nature 188 (1960), S. 1028-1029 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I have recently described7 the use of starch-gel electrophoresis by Smithies's method8 for the separation of the human muscle proteins which are soluble at low ionic strength. At that time the occasional separation of the albumin fraction into two components was reported ; in this context, by the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1881028a0
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  • 7
    Electronic Resource
    Electronic Resource
    Antagonistic effect of human α-CGRP [8-37] on the in vivo regional haemodynamic actions of human α-CGRP
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 171 (1990), S. 938-943 
    Details
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0006-291X(90)90774-H
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of Rotation on Internal Gravity Waves (1964)
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 798-801 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE characteristics of low-frequency internal ocean waves including coriolis effects can be interpreted simply in terms of the interplay between the dominant restoring processes present: (a) gravitational effects appearing through the presence of density gradients; (b) coriolis effects arising from ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/201798a0
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  • 9
    Electronic Resource
    Electronic Resource
    Lactate Dehydrogenase Isoenzymes in Developing Human Muscle (1966)
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 609-610 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Five LDH isoenzymes are usually found in normal muscle, and are referred to in order of decreasing anodic mobility on electrophoresis as LDH 1-5. The changes of electrophoretic pattern in human muscle disease consist of a relative increase in the more anodic fractions2'3. Because the changes are ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/212609b0
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  • 10
    Electronic Resource
    Electronic Resource
    A review of the biology of British Naididae (Oligochaeta) with emphasis on the lotic environment (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 8 (1978), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY. Naidids live in a wide range of aquatic habitats but are particularly important numerically as part of the benthic fauna of rivers with stony substrates. In general they graze on bacteria and algae although some, particularly Chaetogaster spp., are mainly predaceous, and C. limnaei vaghini is a parasite of molluscs, chiefly Gastropoda. Food selection seems to be based largely on particle size although the food quality of the particles within the appropriate size-range influences rates of growth and reproduction.Major factors determining the distribution and abundance of naidid species are the nature of the substratum and the presence and kind of vegetation. Plants with a highly dissected form, a thick growth habit, and which permit the greatest periphyton development generally support the most abundant naidid populations. The oligochaete fauna of coarse substrates (stones and gravels) is often dominated by the Naididae but both species-richness and abundance of naidid populations are generally reduced where fine substrates (silts and muds) occur. The occurrence of worms within the substratum is also determined by its nature; naidids penetrate to depths of 20–70 cm in coarse substrates but rarely penetrate below 6 cm in mud. The principal factor limiting both depth penetration and the dominance of naidids in fine substrates is probably oxygen availability.Naidids reproduce both asexually and sexually, the former method predominating for most of the year. Asexual reproduction usually involves the budding-off of zooids but a few species fragment. Sexual reproduction is often infrequent; populations of some species produce few or no sexually mature individuals. In mature worms asexual reproduction virtually ceases. In populations that produce mature individuals there is apparently one sexual generation a year, usually occurring during the summer and autumn. Adults die soon after laying their cocoons.In general, naidids are most abundant during the summer months when rates of growth and asexual reproduction are stimulated by higher temperatures and a plentiful supply of food. A few species, however, e.g. Nais elinguis and Paranais litoralis, are more abundant in the spring.The response of naidid species to different kinds of pollution is varied but generally organic enrichment of rivers which have stony substrates results in a considerable (ten- to twenty-fold) increase in naidid abundance. Nais elinguis, N. barbata, N. communis, N. variabilis, and Chaetogaster diaphanus are often abundant in such rivers, the foremost species reaching densities of 200 000 m−2. Nais alpina, N. bretscheri, and N. pardalis appear to be relatively intolerant of organic enrichment. A substantial increase in naidid abundance is also promoted by the deposition of biologically inert particles (coal dust, china clay, sand) on the river bed.The importance of Naididae in relation to pollution surveillance of fresh waters is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1978.tb01457.x
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