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  • 1
    Electronic Resource
    Electronic Resource
    Internal motion of deoxyribonucleic acid in chromatin. Nanosecond fluorescence studies of intercalated ethidium (1983)
    s.l. : American Chemical Society
    Biochemistry 22 (1983), S. 6018-6026 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00294a050
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  • 2
    Electronic Resource
    Electronic Resource
    Magnesium binding and conformational change of DNA in chromatin (1984)
    s.l. : American Chemical Society
    Biochemistry 23 (1984), S. 1376-1383 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00302a007
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical evidence for the capsomeric structure of phage Q β (1982)
    [s.l.] : Nature Publishing Group
    Nature 298 (1982), S. 819-824 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Novel capsomeric complexes, pentamers and hexamers were detected as chemical entities in phage Qβ. Both were composed of identical protein subunits and stabilized by intermodular disulphide bonds. Their numbers per particle were about 12 for pentamers and about 20 for hexamers—consistent ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/298819a0
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  • 4
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    Unknown
    Leza Uffer (1912-1982) (1983)
    Berlin : Periodicals Archive Online (PAO)
    Fabula. 24:3/4 (1983) 284-285 
    Details
    ISSN: 0014-6242
    Topics: Linguistics and Literary Studies
    Notes: "Nachrichten"
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4094-1983-024-03-000012
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  • 5
    Electronic Resource
    Electronic Resource
    Lever press responding as a measure of ethanol preference in rats (1982)
    Springer
    Psychopharmacology 76 (1982), S. 36-39 
    Details
    ISSN: 1432-2072
    Keywords: Continuous choice ; Ethanol preference ; Position habit ; Rats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Preference for ethanol in rats, overcoming the problem of a position habit, was assessed in a one-lever and two-liquid chamber. Performance in lever pressing for ethanol of different concentrations (2.5%, 5.0%, and 15.0%) and for water, as well as the amount of liquid intake, were recorded. Evidence of ethanol preference was observed by both the lever press and consumption measures when the concentration was 2.5%. Water preference was evident at higher concentrations. The present method proved to be a useful method for studying ethanol preference in rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00430751
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  • 6
    Electronic Resource
    Electronic Resource
    Renal excretion of an angiotensin I converting enzyme inhibitor (SA-446) in dogs (1984)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 325 (1984), S. 356-359 
    Details
    ISSN: 1432-1912
    Keywords: Angiotensin converting enzyme inhibitor ; SA-446 ; Probenecid ; Renal clearance of SA-446 ; Organic anion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The renal excretory mechanism of an orally active inhibitor of angiotensin converting enzyme (SA-446) was examined in anesthetized dogs. Parenteral administration of this compound resulted in production of constant levels of about 2 mg/l in the plasma (PSA) and the urine concentration was 726±200 mg/l, a level significantly higher than that in the plasma. Renal clearance of SA-446 (CSA) was 2.24±0.34 ml/g·min and was significantly higher than GFR. The clearance ratio (CSA/GFR) of over 1.0 was indicative of a net tubular secretion. Administration of probenecid resulted in a significant rise in PSA and in a significant decrease in urinary excretion but with no change in the plasma protein binding ratio. CSA decreased significantly from 2.24±0.34 to 0.71±0.14 ml/g·min. The inhibotory action of SA-446 (0.02 mg/kg, i.v.) on the pressor response to angiotensin I disappeared at about 50 min, this action being maintained for about 2 h in the probenecid pretreated dog. Since probenecid is a competitive inhibitor of organic anion secretory transport, our results show the net tubular secretion of SA-446, via organic anion transport systems. Prolongation of the action of SA-446, as induced by probenecid may be due to the increase of plasma concentration, by the inhibition of tubular secretion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00504381
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  • 7
    Electronic Resource
    Electronic Resource
    π+/π− Ratio and two particle production in Proton's fragmentation region by Monte Carlo simulation (1981)
    Springer
    The European physical journal 7 (1981), S. 321-336 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Hadron jet at lowp T is generated by Monte Carlo method using several models including our quark cascade model in which the recombination mechanism is taken into account. The predicted results from those models on π+/π− ratio,K + /K − ratio, π± meson spectra and π+/π− ratio under π± meson and Λ particle trigger, ratio between invariant two particle cross-section (p→π + /π − )/(p→π − /π − are compared with the experimental data. The effects of the asymmetric initialu- andd-quark distributions the scaling and its violation of particle spectra and particle ratios under the other particle trigger are discussed. Predictions from our recombination model fit to the experimental data fairly well.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01431565
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  • 8
    Electronic Resource
    Electronic Resource
    On the recombination mechanism of quarks into a baryon in proton fragmentation (1981)
    Springer
    The European physical journal 11 (1981), S. 103-111 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The similarity and difference between our quark cascade model with recombination mechanism and Van Hove's quark fragmentation-recombination model are discussed. Van Hove's fragmentation-recombination model is extended to the model which describesx-dependence of the hadron spectra as well as the baryon multiplicities by using our diffusion equation. The recombination probability in Van Hove's model can be related with the recombination factor λ′ in our diffusion equation. Thex-dependence of the hadron spectra causes another restriction on the recombination probability in Van Hove's model. The inclusive spectra of mesons, proton andΔ ++ in proton fragmentation and baryon multiplicities except∑ − multiplicity are explained by both our model with recombination mechanism and the model with recombination mechanism a la Van Hove. But the ration(∑ −)/n(∑ +;) may not be explained by naive quark-parton model with recombination mechanism without considering quark spin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01573991
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  • 9
    Electronic Resource
    Electronic Resource
    Semiflexibility of collagens in solution (1982)
    New York : Wiley-Blackwell
    Biopolymers 21 (1982), S. 715-728 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The persistence length of lugworm cuticle collagen in 0.1M acetic acid was evaluated as 1600 ∼ 1800 Å by Yamakawa-Fujii's model for a wormlike chain from the sedimentation constant and the intrinsic viscosity. The persistence length was further examined for a series of sample “collagen sonicates” produced by varying the duration of sonic irradiation. To estimate the salt effect on the persistence length, measurements were made over a range of NaCl concentrations from 0 to 0.1M. The results showed that the cuticle collagen and collagen sonicates had identical values of persistence length and that the neutral salt effect for the cuticle collagen was far smaller than that for DNA.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360210402
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  • 10
    Electronic Resource
    Electronic Resource
    Ultracentrifugal equilibrium measurement of high polymer solutions at elevated temperatures (1967)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 5 (1967), S. 277-288 
    Details
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: To investigate the solution properties of polyethylene, which has the simplest structure of the vinyl polymers, experiments were made with a magnetically suspended equilibrium ultracentrifuge. Preliminary studies were carried out with a polystyrene-chloroform system at 25°C. and a polystyrene-methylcyclohexane system at 68°C. (which is close to the theta temperature) in order to check the difficulties involved in the flotation equilibrium in the former case and the high temperature measurement in the latter. However, no trouble was encountered in either system, and the results were discussed and compared with earlier results for polystyrene solutions. It was found that chloroform is a good solvent for polystyrene, and the measured weight-average molecular weight is somewhat smaller than the value obtained in a theta solvent. After overcoming some technical difficulties involved in studies at higher temperatures, we carried out experiments on polyethylene in α-chloronaphthalene at 130°C. The results are considered reasonable by comparison with results obtained by other methods. The sample employed, Marlex 50 of melt index 0.7, has a wide molecular weight distribution: i.e., Mz/Mw = 5.2 and Mz+1/Mz = 2.4.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1967.160050204
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