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  • 1
    Electronic Resource
    Electronic Resource
    Experimental Approaches to Understanding the Role of Protein Phosphorylation in the Regulation of Neuronal Function (1983)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Neuroscience 6 (1983), S. 493-525 
    Details
    ISSN: 0147-006X
    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.ne.06.030183.002425
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  • 2
    Electronic Resource
    Electronic Resource
    ADRENERGIC FACTORS INVOLVED IN THE CONTROL OF CRYPT CELL PROLIFERATION IN JEJUNUM AND DESCENDING COLON OF MOUSE (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 10 (1983), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. The mitotic rates in the crypts of Lieberkühn of the proximal jejunum and descending colon of mouse, following different treatments, were measured using a stathmokinetic technique. Regression coefficients, representing mitotic rates, were then calculated by the method of least squares.2. Treatment with adrenaline, isoprenaline, phenylephrine, phentolamine, and yohimbine all resulted in decreased mitotic rate of jejunal and colonic crypt cells. Chemical sympathectomy and cryosympathectomy had a similar effect, and chemical sympathectomy was followed by a supersensitivity to clonidine.3. Intraperitoneal injection of metaraminol, clonidine, propranolol, prazosin, labetolol and simultaneous injection of propranolol and adrenaline all resulted in an increased rate of crypt cell proliferation in both jejunum and colon.4. A significant increase in mitotic rate was observed in both tissues at night. The amplitude of this diurnal variation was decreased in both jejunum and colon following chemical sympathectomy. In addition, the amplitude of this variation in jejunum was decreased after treatment with yohimbine or phentolamine.5. The results of the study suggest that the sympathetic nervous system stimulates epithelial cell proliferation in both the small and large intestine and that this effect is mediated by an α2-adrenoceptor. By contrast, stimulation of α1- and β-adrenoceptors is inhibitory to cell proliferation in these tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1983.tb00226.x
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  • 3
    Electronic Resource
    Electronic Resource
    Silica retards radial growth of spherulites in isotactic polystyrene (1980)
    [s.l.] : Nature Publishing Group
    Nature 287 (1980), S. 316-317 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A Zetopan Reichert research microscope equipped with crossed polarizers and a Nikon 35 mm camera were used in conjunction with a Mettler FP52 hot stage (controlled to ±1C and calibrated using the melting points of benzoic acid, naphthalene and benzophenone). The samples were prepared by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/287316a0
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of Feed Moisture and Barrel Temperature on Physical Properties of Extruded Cowpea Meal (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), 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: Whole cowpeas were decorticated, adjusted to moisture contents of 20, 30 and 40%, chopped into coarse meals and extruded on a Wayne pilot-scale extrudel (19 mm × 475 mm barrel, 5:1 compression screw, 4.76 mm i.d. die) at barrel temperatures of 150°, 175° and 200°C. Measured product temperatures ranged from 130-164°C. Product moistures ranged from 10–34% and were affected mainly by initial moisture. Expansion at the die was highest for 20% moisture extrudates (1.7–1.9), and lowest for 40% samples (0.9- 1.3). The 20%-150° extrudate was dense (0.45 g/cm3) and twisted. The 20%-175° product was highly expanded (0.23 g/cm3). Other products were intermediate in density. Tristimulus color values were determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb13241.x
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  • 5
    Electronic Resource
    Electronic Resource
    Gastrointestinal inoculation of Sporothrix schenckii in mice (1982)
    Springer
    Mycopathologia 78 (1982), S. 141-143 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Antibiotic-decontaminated and untreated conventional mice were inoculated intragastrically with 107 viable cells of Sporothrix schenckii to compare the incidence of gastrointestinal (GI) colonization. In control mice, S. schenckii was completely eliminated from the GI tract by 12 h post-inoculation. Antibiotictreated mice also failed to become colonized with this fungus, however, higher population levels of Sporothrix cells remained in the GI tract for a longer period of time before being eliminated. The ability of S. schenckii to disseminate from the lumen of the bowel to infect other organs was also tested. Results indicate that the gastrointestinal tract is not a portal of entry into the host for S. schenckii.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00466067
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  • 6
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    Self-recognition ability in mentally retarded adolescents (1981)
    Provincetown, Mass., etc. : Periodicals Archive Online (PAO)
    Journal of Psychology. 108:1 (1981:May) 123 
    Details
    ISSN: 0022-3980
    Topics: Psychology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1140-1981-108-01-000017
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  • 7
    Electronic Resource
    Electronic Resource
    Biochemical genetics of the raccoon, Procyon lotor (1980)
    Springer
    Genetica 54 (1980), S. 127-132 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00055981
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  • 8
    Electronic Resource
    Electronic Resource
    Genic variation in the deer mouse, Peromyscus maniculatus, in a small geographic area (1981)
    Springer
    Genetica 57 (1981), S. 65-74 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Genic variation was examined with starch and polyacrylamide gel electrophoresis at 14 loci in 12 populations of Peromyscus maniculatus nubiterrae from a small part of the Appalachians in eastern Tennessee and western North Carolina. Polymorphism was observed at eight loci with no significant correlations between frequency of common genotypes or alleles and altitude. Average individual heterozygosity (\-H) values were low for P. maniculatus whether using only ‘slow’ evolving loci (mean = 3.0%) or both ‘slow’ and ‘fast’ evolving loci (mean = 4.9%). No significant correlation was present between altitude and \-H. Interlocality variation of \-H was as great in this study as previously reported for P. maniculatus over larger geographic areas. Rogers' coefficients of genetic similarity of paired combinations of populations based on ‘slow’ evolving loci (range of 0.941 to 0.997) or based on ‘slow’ and ‘fast’ evolving loci (range of 0.858 to 0.974) showed all populations to be highly similar. Ranges of similarity values observed in the present study were as great as those previously reported for P. maniculatus over a larger geographic area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00057543
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  • 9
    Electronic Resource
    Electronic Resource
    Retardation of spherulitic growth rate in the crystallization of isotactic polystyrene due to the presence of nucleant (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 21 (1983), S. 1403-1413 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Although the rate of heterogeneous nucleation of crystallization in isotactic polystyrene, as studied by photomicroscopy, is markedly increased by addition of fine-particle silica, the rate of subsequent radial growth of spherulites formed is diminished. The latter observation is rationalized on the basis of a modified Hoffman-Lauritzen treatment wherein the nucleant is depicted as a quasicrosslink which impedes the transport of polymer segments.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.180210811
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  • 10
    Electronic Resource
    Electronic Resource
    The effect of silica on the crystallization of isotactic poly(propylene oxide) (1984)
    Brookfield, Conn. : Wiley-Blackwell
    Polymer Composites 5 (1984), S. 307-311 
    Details
    ISSN: 0272-8397
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The addition of one part, by weight, of fine particle silica to one hundred parts isotactic poly(propylene oxide) causes a retardation in the rate of radial growth of spherulites at all temperatures between 268 and 313 K. The results have been fitted empirically by use of the Hoffman-Lauritzen equation suitably modified to account for effects due to the presence of the silica. At certain temperatures the presence of the silica also causes a change in the morphology of the spherulites.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pc.750050410
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