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  • 1
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    Subcultural Aspects of Drug Use in an Indian University (1982)
    Beverley Hills, Calif. : Periodicals Archive Online (PAO)
    Youth and Society. 14:1 (1982:Sept.) 81 
    Details
    ISSN: 0044-118X
    Topics: Psychology , Sociology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:c446-1982-014-01-000004
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  • 2
    Electronic Resource
    Electronic Resource
    Kinetics of alkaline chloramine-T oxidation of arginine monohydrochloride with and without catalytic action of Cu(II) ion (1980)
    Springer
    Monatshefte für Chemie 111 (1980), S. 649-656 
    Details
    ISSN: 1434-4475
    Keywords: Arginine ; Catalysis ; Kinetics ; Mechanism ; Oxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Oxidation erfolgt sowohl mit als auch ohne Cu(II)-Katalysator in erster Ordnung bezüglich des Oxidationsmittels und des Substrats; inverse Ordnung wird bezüglich der Alkalikonzentration beobachtet. Bis zu einer Cu(II)-Konzentration von≤2×10−5 M ist die Geschwindigkeitskonstante der Katalysatorkonzentration proportional; darüber wird eine konstantbleibende Geschwindigkeit beobachtet, die nun von der Cu(II)-Konzentration unabhängig ist. Neutralsalze haben keinen Effekt auf die Geschwindigkeitskonstante. Es wird für den katalysierten und unkatalysierten Reaktionsablauf ein Mechanismus vorgeschlagen und ein mathematischer Ansatz präsentiert.
    Notes: Abstract The kinetics of uncatalysed and Cu(II) catalysed oxidation of arginine monohydrochloride was investigated. Both reactions follow a singular order dependence each in oxidant and substrate. An inverse order dependence is reported with the alkali concentration. A plot of observed rate constant versus Cu(II) concentrations Cu(II)≤2.0×10−5 M is linear; from the intercept the rate constant for the uncatalysed pathway was calculated. However, at high copper ion concentrations i.e. Cu(II)〉2.0×10−5 M a fixed value of rate constant was found for all catalyst concentrations. Added neutral salts show an insignificant effect on the reaction rate. Mechanisms were proposed for both cases and rate expressions were derived by applying steady state assumptions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00903319
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  • 3
    Electronic Resource
    Electronic Resource
    Sulphur and phosphorus requirements of Curvularia pallescens Boed (1972)
    Springer
    Mycopathologia 47 (1972), S. 363-368 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The effect of different sulphur and phosphorus compounds on the growth and sporulation ofCurvularia pallescens Boed. has been studied. Nine different sulphur sources were tried but among them only magnesium sulphate yielded the best dry weight of the fungus. Zinc sulphate, sodium sulphate, sodium thiosulphate, potassium sulphate and calcium sulphate supported good growth. Poor growth was recorded on sodium bisulphite, ammonium sulphate, sodium sulphide and control. Sporulation was excellent on magnesium sulphate. It was good on zinc sulphate, sodium sulphate and potassium sulphate. On sodium thiosulphate, calcium sulphate, sodium bisulphite and control it was fair. Sodium sulphide and ammonium sulphate had inhibitory effect as sporulation was poor and nil on these two compounds respectively. Six phosphorus compounds were studied. Tripotassium phosphate gave best growth and excellent sporulation. Good growth and excellent sporulation was recorded on monobasic potassium phosphate and magnesium phosphate. Growth and sporulation were good on dibasic potassium phosphate and sodium dihydrogen phosphate. Ammonium phosphate was poorly utilized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02052347
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of different carbon and nitrogen sources on the growth and sporulation of Claviceps microcephal (Wallr) TUL. (1972)
    Springer
    Mycopathologia 46 (1972), S. 373-378 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The effect of different carbon and nitrogen compounds on growth and sporulation ofC. microcephala (Wallr.)Tul. causing ‘ergot disease’ of Bajra has been studied. Nine different sources of carbon were used but cane sugar was found to be the best source for both, growth and sportulation of the fungus. Glucose, sucrose and maltose gave good growth but fair sporulation. Lactose and sorbitaol proved to be the poor sources. However, fungus failed to utilize starch, dextrin and mannitol. Nineteen nitrogen compounds were tried for the growth and sporulation of the fungus. Best growth and sporulation were supported by peptone and glycine. L-asparagine, DL-valine, Urea, magnesium nitrate and L-proline supported good growth and fair sporulation except DL-valine where it was excellent. Poor growth was obtained on L-isoleucin, ammonium sulphate, potassium nitrate,β-alanine, ammonium chloride, DL-aspartic acid and DL-methionine. Fungus failed to utilize thio-urea.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02052134
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  • 5
    Electronic Resource
    Electronic Resource
    Plane-symmetric magnetofluid cosmological models (1988)
    Springer
    Astrophysics and space science 150 (1988), S. 205-212 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The solutions of the Einstein and Einstein-Maxwell equations for magnetofluid with cosmological constant are obtained for plane-symmetric space-time. We recover the results of Hojman and Santamarina in a special case when the magnetic field is made to vanish. It has also been shown that under a suitable transformation the cases Λ=0 and Λ≠0 are mathematically equivalent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00641716
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