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  • Artikel: DFG Deutsche Nationallizenzen  (11)
  • 2005-2009
  • 1975-1979  (7)
  • 1970-1974  (4)
  • 1915-1919
  • 1977  (7)
  • 1970  (4)
Datenquelle
  • Artikel: DFG Deutsche Nationallizenzen  (11)
Materialart
Erscheinungszeitraum
  • 2005-2009
  • 1975-1979  (7)
  • 1970-1974  (4)
  • 1915-1919
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    REGIONAL, CELLULAR AND SUBCELLULAR DISTRIBUTION OF CALCIUM-ACTIVATED CYCLIC NUCLEOTIDE PHOSPHODIESTERASE AND CALCIUM-DEPENDENT REGULATOR IN PORCINE BRAIN (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 28 (1977), S. 0 
    Details
    ISSN: 1471-4159
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Abstract— Cyclic nucleotide phosphodiesterase activity (calcium-dependent and calcium-independent) and CDR (calcium-dependent regulator protein of phosphodiesterase) are present in all ten brain regions examined, with the specific activity of both being highest in areas predominating in grey matter and lowest in areas consisting largely of white matter. Fractionation of cerebral cortex into neuronal and glial perikarya shows that cyclic nucleotide phosphodiesterase and CDR are present at approximately equal levels in both cell types. Subcellular fractionation reveals that calcium-sensitive enzyme specific activity, as well as CDR are highly localized in the 100,000 g supernatant fraction. Regional, cellular and subcellular distribution studies indicate that the distribution of CDR closely parallels the distribution of enzyme specific activity, suggesting that the levels of cyclic nucleotide phosphodiesterase and CDR may be synchronized.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1471-4159.1977.tb12311.x
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  • 2
    Digitale Medien
    Digitale Medien
    THE SYNTHESIS OF 2,2-DIMETHYLTHIOCHROMAN BY CATALYTIC HYDROGENATION (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 172 (1970), S. 0 
    Details
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1749-6632.1970.tb34983.x
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  • 3
    Digitale Medien
    Digitale Medien
    Biology of the emerald shiner Notropis atherinoides Rafinesque in Lake Simcoe, Canada (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 2 (1970), S. 0 
    Details
    ISSN: 1095-8649
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: The study of the emerald shiner Notropis atherinoides Rafinesque was conducted in 1967 and 1968 in Lake Simcoe, a eutrophic inland lake with an area of 725 km2 situated in the Province of Ontario, Canada. On the basis of meristic characters, the emerald shiner of Lake Simcoe conforms to the classical description of the species and is not distinct from the form inhabiting the Great Lakes. Annulus formation occurred in early June on age I fish but second and third annuli were not formed on older fish until late July through August.Young-of-the-year emerald shiners reached a total length of 45 mm by October; age I were 81 mm and age II measured 92 mm by the same month. By September, age I female emerald shiners attained a size superiority of 5 mm over males of that age group and by the end of the third summer age II females exceeded age II males by 8 mm. Spawning occurred offshore in the latter part of July when surface water temperatures approximated 20°C. Of the three age groups, age II specimens were the most prevalent on the spawning grounds. Average absolute fecundity was 3410 eggs in fish of all age classes combined. Differences in water temperature seem to strongly influence the seasonal distribution pattern of the emerald shiner. The final temperature preferendum of the species, as determined in a vertical temperature gradient tank, was 25°C. The emerald shiner is extensively utilized as a bait fish by anglers and appears to be an important forage fish. The plasticity of the species to adapt to a variety of ecological conditions and the species potential for high production favour its introduction to waters requiring a good converter in the food chain.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1095-8649.1970.tb03284.x
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  • 4
    Digitale Medien
    Digitale Medien
    Spawning characteristics of brown trout and sea trout Salmo trutta L. in Kirk Burn, River Tweed, Scotland (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 11 (1977), S. 0 
    Details
    ISSN: 1095-8649
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: The upstream spawning migrations of brown trout and sea trout were studied using stationary traps placed in Kirk Burn, a tributary of the upper Tweed. The sea trout spawning period extended from early November to the first week of December, while that of brown trout occurred from the middle of October to the third week of December. Sea trout were predominantly maiden spawners of ages 2.1+ and 3.1+ while brown trout were mostly age 2+ and 3+. Male-female sex ratios approximated 1:1.4 in sea trout but 6 : 1 in brown trout. Brown trout males participated in the spawning activities of sea trout. Low water conditions in Kirk Burn hindered the upstream movement of spawning sea trout, while sudden increases in water level appeared to stimulate the upstream migration of both brown trout and sea trout. The suggestion is advanced that the freshwater resident brown trout of the Tweed which migrate upstream into the smaller tributaries to spawn is wholly, or at least partially, the progeny of anadromous parents.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1095-8649.1977.tb04115.x
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  • 5
    facet.materialart.
    Unbekannt
    Tobacco smoking, personality and sex factors in auditory vigilance performance (1977)
    London, etc. : Periodicals Archive Online (PAO)
    British journal of psychology. 68 (1977) 365 
    Details
    ISSN: 0007-1269
    Thema: Psychologie
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0047-1977-068-00-000048
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  • 6
    Digitale Medien
    Digitale Medien
    Equivalence of the perturbation theories of Hori and Deprit (1970)
    Springer
    Celestial mechanics and dynamical astronomy 2 (1970), S. 467-473 
    Details
    ISSN: 1572-9478
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A comparison is made between the perturbation theories of Hori and Deprit which are based on the use of Poisson brackets. General recurrence formulae are presented for Hori's theory which are analogous to those in Deprit's theory. Explicit relations between the determining functions for the two theories are indicated through the sixth order, these results having been obtained by a novel computer program. A general argument for the equivalence of the theories to all orders is given.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01625278
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  • 7
    Digitale Medien
    Digitale Medien
    Absolute stellar photometry in the region 1900–3000 Å (1970)
    Springer
    Astrophysics and space science 9 (1970), S. 128-145 
    Details
    ISSN: 1572-946X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Twin channel stellar photometers were flown in two sounding rockets in May 1967 and produced a number of absolute photoelectric measurements in the region 2000–3000 Å. The observations were made at wavelengths centred on 2150 Å and 2550 Å with passbands of 300 Å on 28 early-type stars in the range of spectral types B0-B9.5 down to a limiting visual magnitude of 4.8. A comparison of the experimental data with other observations and with the theoretically derived fluxes of Mihalas for unblanketed models, indicates a satisfactory agreement within the limits of the known photometric accuracies, although there are significant departures for those stars exhibiting emission characteristics and for the magnetic variable α2 Canum Venaticorum.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00649959
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  • 8
    Digitale Medien
    Digitale Medien
    Enzymic basis for the nutritional requirement of arginine in insects (1977)
    Springer
    Cellular and molecular life sciences 33 (1977), S. 160-161 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The fat body of the cockroach, Blaberus cranifera, and the silkmoth, Hyalophora gloveri, has been tested for some enzymes of the urea cycle. While ornithine transcarbamoylase and argininosuccinase activities could not be detected, arginase is present in the fat body of these insects. These results explain the essentiality of arginine in the diet of insects.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02124040
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  • 9
    Digitale Medien
    Digitale Medien
    Organochlorine residues in fish and fishery products from the Northwest Atlantic (1977)
    Springer
    Bulletin of environmental contamination and toxicology 18 (1977), S. 697-705 
    Details
    ISSN: 1432-0800
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik , Medizin
    Notizen: Abstract The residues of polycholorinated biphenyls (PCBs) and DDT (p,p′-DDT and its metabolites) were determined in fish collected at various sites off the Atlantic Coast of Canada during 1971 and 1972. The results of analyses of 261 samples representing 29 species of Crustacea, bivalves and finfish, indicated widespread distribution of these contaminants and preferential accumulation in lipid rich specimens. Only fatty specimens of pelagic finfish consistently contained more than 0.1 μg/g of PCB and DDT. Bluefin tuna was the only species with residues frequently in excess of 1 μg/g. No appreciable differences were observed in residue levels of specimens taken during different years or in specimens taken at different sampling sites. A total of 83 samples representing 7 selected tissues and fishery products were also analyzed for PCB and DDT. No residues of lindane, aldrin, heptachlor, heptachlor epoxide and methoxychlor, and only very low levels of dieldrin and hexachlorobenzene were present in the 104 samples examined for these residues.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01691981
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  • 10
    Digitale Medien
    Digitale Medien
    Annihilation gamma-ray lineshape parameters (1977)
    Springer
    Applied physics 13 (1977), S. 365-369 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 78.70
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract The S-parameter, introduced by MacKenzie et al., is now widely used to describe annihilation gamma-ray lineshapes recorded with Ge(Li) spectrometers. This paper discusses four descriptive parameters, their statistical properties and their sensitivity to positron trapping.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00882612
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