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  • 1990-1994  (3)
  • Polymer and Materials Science  (1)
  • Tumor marker  (1)
  • volatiles  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Immunological comparison between prostate-specific antigen and γ-seminoprotein (1991)
    Springer
    Urological research 19 (1991), S. 25-30 
    Details
    ISSN: 1434-0879
    Keywords: Prostate cancer ; Tumor marker ; Prostate-specific antigen ; γ-Seminoprotein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Prostate-specific antigen (PA) and γ-seminoprotein (γ-Sm) were compared by immunocytochemical, immunodiffusion and immunoblotting methods using rabbit anti-PA antibody and rabbit anti-γ-Sm antibody. Enzyme immunoassys (EIAs) were developed for measurements of PA and γ-Sm to determine a correlation between serum PA and γ-Sm levels in patients with prostate cancer. The patterns of localization and distribution of PA and γ-Sm were identical in prostate tissue sections, including benign and cancerous human prostacs. The immunodiffusion study showed that the antigens with which anti-PA antibody and anti-γ-Sm antibody reacted in seminal plasma and prostate tissue homogenates were identical to each other. In the immunoblotting study, anti-PA antibody and anti-γ-Sm antibody recognized a single antigen corresponding to a molecular weight of approximately 33,000 both in seminal plasma and prostate tissue homogenates. The EIAs developed in this study were sensitive, specific, and reproducible, and the correlation between serum PA and γ-Sm values determined by these EIAs was highly significant (r=0.99, P(0.001). These results indicated that PA and γ-Sm were immunologically identical and that serum PA and γ-Sm determined by immunoassays using anti-PA antibody and anti-γ-Sm antibody should be evaluated as identical tumor markers for serodiagnosis of prostate cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00294017
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetics and mechanism of emulsion polymerization initiated by oil-soluble initiators. II. Kinetic behavior of styrene emulsion polymerization initiated by 2,2′-azoisobutyronitrile (1991)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 29 (1991), S. 987-994 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In order to clarify the general kinetic behavior of emulsion polymerization initiated by oilsoluble initiators, the emulsion polymerization of styrene initiated by 2,2′-azoisobutyronitrile was as a typical example, investigated thoroughly. The variations of the polymerization rate and the number of polymer particles produced with changes in emulsifier (sodium lauryl sulfate), initiator, and monomer concentrations initially charged and the reaction temperature were determined. It is shown from these experimental results that the kinetic behavior of this emulsion polymerization system is quite similar to that of styrene emulsion polymerization initiated by the water-soluble initiator, potassium persulfate despite the difference in the principal loci of radical production in both systems.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1991.080290705
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Cattle feeding deterrents emitted from cattle feces (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1197-1203 
    Details
    ISSN: 1573-1561
    Keywords: Cattle ; dung patch ; feces odor ; feeding deterrents ; volatiles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Cattle avoid grazing forage near their feces on pasture for more than a month. The relation of cattle feces odor to the rejection was studied in feeding choice tests using cattle. The feeding deterrent of feces odor was investigated using a trough partitioned to allow passage of feces odor through test food to the cattle. The cattle did not feed from the trough containing feces 0–35 days after excretion. Volatile chemicals isolated from feces 0–35 days after excretion by a cold trap method also inhibited cattle from feeding. These results demonstrated that feces odor is a major cause of the unpalatability of forage around cattle feces. The volatile chemicals were separated into ether and aqueous fractions. The ether fraction inhibited the feeding behavior of cattle. Furthermore, the ether fraction was separated into neutral, acidic, and basic fractions. The neutral fraction of the three was bioactive. These results suggested that specific volatile chemicals emitted from cattle feces were deterrents to the feeding behavior of cattle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402943
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    Paper (German National Licenses)
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