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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 90 (1974), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The case is reported of a 61-year-old man with a 25-year history of normolipaemic xanthomatosis involving almost the whole integument. He also presented a γ-G-paraproteinaemia, and a bleeding tendency manifested by petechial haemorrhages in the xanthomatous skin, by intestinal haemorrhages and by a subdural haematoma.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 18 (1971), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effects of phenylpyruvate and hyperphenylalaninemia on the incorporation of [6-3H]glucose into lipids, proteins and nucleic acids were examined in differentiating and adult rat brain. Foetal brain was most sensitive to inhibition by phenylpyruvate in vitro, with significant effects occurring at 2·5 mM for labelling of lipids and proteins and at 5 mM for labelling RNA and DNA. Older age groups were less affected, and cortical slices from adult brain were slightly or not at all affected by phenylpyruvate.The inhibition by phenylpyruvate of incorporation of [6-3H]glucose into nucleic acids, proteins, and lipids could be further distinguished by the reversibility of the effect on nucleic acid and protein synthesis at high levels of glucose and the irreversibility of the effect on lipid synthesis. Lipid synthesis was most sensitive to inhibition by phenylpyruvate at the stage of fatty acid synthesis, with lesser effect on the formation of glyceride glycerol.Exposure in utero of the foetal brain to maternal hyperphenylalaninemia resulted in reduction of 26–38 per cent in the subsequent incorporation in vitro of [6-3H]glucose into lipids, proteins, RNA and DNA of brain slices from foetal animals. Feeding hyperphenylalaninemic pregnant rats a high-glucose diet significantly protected the foetal brain from the neurotoxicity accompanying the hyperphenylalanemia.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 18 (1971), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— An assay in vitro utilizing [6−3H)glucose as precursor for synthesis of lipids, proteins, RNA and DNA was developed for incubated slices of rat cerebral cortex. The developmental changes in synthesis of macromolecules were followed during differentiation of rat cerebral cortex. The incorporation of glucose into lipids and proteins decreased 10-fold in incubated slices of cerebral cortex during progression from foetal to adult ages. In contrast, the specific radioactivities of RNA and DNA in incubated slices increased from the values at 3 days prepartum to peaks at 2–4 weeks postpartum.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of the World Aquaculture Society 18 (1987), S. 0 
    ISSN: 1749-7345
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Progress in propagation of milkfish has been impeded by the shortage of mature broodstock. This study was a first step toward revealing the environmental cues for the maturation of milkfish. Experiments were carried out during 1978-1985 in an indoor tank (5.2 × 4.8 × 13 m) under photoperiod control and in an outdoor tank (63 × 5.4 × 13 m). In two controlled, long-photoperiod regime experiments, 86 and 83% of the fish matured, the highest percentages yet reported. In these experiments, milkfish matured one month earlier than the normal spawning season, two months after the fish were exposed to the long daylight regime. Only 21% of the fish under a natural photoperiod regime in the outdoor tank matured. Results of the current study suggest that a change and increase in photoperiod are necessary for the onset of maturation.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 89 (1973), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biophysics and Biomolecular Structure 1 (1972), S. 553-570 
    ISSN: 0084-6589
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 29 (1986), S. 0 
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Diets containing 17α-methyltestosterone (17α-MT) were fed to milkfish, Chanos chanos, both during the spawning season (experiment 1) and after (experiment 2). The daily dosage of 17α-MT per kg of body weight was either 25 mg or 12.5 mg in experiment 1, and either 12.5 mg or 6.25 mg in experiment 2. The fish in both experiments were smaller than the minimum mature size previously reported. After 12 weeks of treatment, the treated fish had GSIs that were four times higher than the control fish in both experiments. Histologically, the testes of the control fish had only spermatogonia, in contrast to spermatozoa in the treated fish. However, no male possessed running milt. So 17α-MT induced spermatogenesis but not spermiation in the immature-sized milkfish.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 26 (1985), S. 0 
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Diets containing 17α-Methyl-testosterone were given to grey mullet, Mugil cephalus, during the refractory period in its reproductive cycle at the dosage of 25 mg or 12.5mgkg−1 fish. Fish in experiment I were fed the diet containing methyl-testosterone every day for 55 weeks, and fish in Experiment II were fed the same diet daily for the first 10 weeks, and three times per week for the next 42 weeks. Fish were checked for the presence of sperm weekly or bi-weekly and tested for fertility during the spawning season. Terminal gonad weights and histology were compared with control groups. This study demonstrated that male mullet will mature 3 weeks or less by oral administration of 12.5 mg methyl-testosterone kg−1 fish daily. Fish can then be maintained in mature condition by feeding them methyl-testosterone at 12.5 mg kg−1 three times per week.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 252 (1974), S. 836-847 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary The present paper deals with experimental results of time dependent currents, steady conductivity and discharge currents studied in a high density polyethylene over a field range up to 2.8 · 105 V/cm. Some of these properties have been investigated as a function of time and temperature at samples with thicknesses of 36, 60 and 115 μm. By considering a modifiedPoole-Frenkel-model it is possible to describe quantitatively the field and temperature dependence of the steady conductivity. This model includes the thermal activation of electrons of ionizable sites in case of overlapping coulomb-potential fields of three neighbouring Poole-Frenkelsites. The good agreement between calculated and experimental results indicates that charge transfer occurs by a hopping mechanism in which the electrons jump over intermolecular barriers after having been thermally activated out of deep lying Poole-Frenkelsites.
    Notes: Zusammenfassung An einem Niederdruck-Polyäthylen (HDPE) wurden die Aufladeströme, die stationäre Gleichstromleitfähigkeit sowie die Entladeströme im Feldstärkenbereich bis zu 2,8 × 105 V/cm gemessen. Einige elektrische Meßgrößen wurden in Abhängigkeit von der Zeit und der Temperatur an 36, 60 und 115 μm dicken Proben untersucht. Durch ein modifiziertesPoole-Frenkel-Modell, das auf der thermischen Befreiung von Elektronen aus ionisierbaren Zentren beruht, kann die Feld- und Temperaturabhängigkeit der stationären elektrischen Leitfähigkeit quantitativ beschrieben werden. In diesem Modell wird die Überlappung benachbarter Coulombpotentiale berücksichtigt, wobei der Potentialverlauf zwischen drei benachbarten Poole-Frenkel-Zentren betrachtet wird. Die gute Übereinstimmung der berechneten und experimentellen Ergebnisse stützt die Annahme, daß der Ladungstransport nach Befreiung von Elektronen aus energetisch tiefliegenden Zentren durch Sprünge über intermolekulare Schwellen in Form eines thermisch aktivierten Prozesses erfolgt.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Muon inclusive multihadronic final states ine + e − annihilation at $$\langle \sqrt s \rangle $$ =34.6 GeV, collected by the JADE detector at PETRA, have been analysed in terms of the semi-muonic branching ratios and fragmentation functions of heavy quarks. Defining the fragmentation variable, ζ, as $$z = \frac{{\left( {E + p_\parallel } \right)_{hadron} }}{{\left( {E + p} \right)_{quark} }}$$ we find 〈z c 〉=(77±3±5)% and 〈z b 〉=(86±4±5)%. The corresponding semi-muonic branching ratios are measured to be BR(c→μv μ X)=7.8±1.5±2)% and BR (b→μv μ X)=(11.7±1.6±1.5)%. Defining ζ as $$x_E = \frac{{E_{hadron} }}{{E_{beam} }}$$ we observe an expected softening effect in the fragmentation due mainly to gluon emission, but find that this definition leads to semi-muonic branching ratiomeasurements which are strongly affected by uncertainties in the fragmentation process and the WCD calculation.
    Type of Medium: Electronic Resource
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