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  • 1
    Electronic Resource
    Electronic Resource
    Relationship between metabolism and radioprotective activity of 2-phenylthiazolidine and its m-bromo derivative (1983)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 26 (1983), S. 1317-1319 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00363a018
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  • 2
    Electronic Resource
    Electronic Resource
    Triton X-100 solubilization of mitochondrial inner and outer membranes (1980)
    Springer
    Journal of bioenergetics and biomembranes 12 (1980), S. 47-70 
    Details
    ISSN: 1573-6881
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Physics
    Notes: Abstract Rat liver mitochondrial inner and outer membranes were subjected to the solubilizing effect of the nonionic detergent Triton X-100 under various conditions. After centrifugation, the supernatants (containing the solubilized fraction) and pellets were characterized chemically and/or ultrastructurally. The detergent seems to act by inducing a phase transition from membrane lamellae to mixed protein-lipid-detergent micelles. Different electron-micro-scopy patterns are shown by the inner membranes after treatment with different amounts of surfactant, whereas the corresponding images from outer membranes vary but slightly. Selective solubilization of various components is observed, especially in the case of the inner membrane. Some membrane lipids (e.g., cardiolipin) are totally solubilized at detergent concentrations when others, such as sphyngomyelin, remain in the membrane. Other inner-membrane components (flavins, cytochromes, coenzymeQ) show different solubilization patterns. This allows the selection of conditions for optimal solubilization of a given membrane component with some degree of selectivity. The influence of Triton X-100 on various mitochondrial inner-membrane enzyme activities was studied. The detergent seems to act especially through disruption of the topology of the functional complexes, although the activity of the individual enzymes appears to be preserved. Relatively simple enzyme activities, such as ATPase, are more or less solubilized according to the detergent concentration, whereas the more complex succinate-cytochromec reductase activity practically disappears even at low Triton X-100 concentrations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00745012
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of insulin in vivo on the synthesis of free fatty acids (FFA) in chicken heart and skeletal muscle (1980)
    Springer
    Cellular and molecular life sciences 36 (1980), S. 611-612 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The effect of insulin on the synthesis of free fatty acids from glucose in the skeletal and heart muscles of chicken is examined. 10 min after glucose-(U-14C) administration, labeled free fatty acids (FFA) appeared in both skeletal and heart muscles. 0.75 IU of insulin kg−1 b. wt significantly increased the labeled FFA at the 30, 60 and 120 min intervals, with a maximum at 60 min.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01965833
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  • 4
    Electronic Resource
    Electronic Resource
    Capacitance measurements reveal stepwise fusion events in degranulating mast cells (1984)
    [s.l.] : Nature Publishing Group
    Nature 312 (1984), S. 453-455 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To our surprise, especially in view of an earlier report9 indicating stimulation of exocytosis following microinjection of Ca2*, perfusion with various combinations of Ca2* and EGTA (to maintain cytosolic free Ca2+ in the range 0.2-10 ?) generally failed to induce degranulation in rat mast ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/312453a0
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of chloroform on charge movement in the nerve membrane (1982)
    [s.l.] : Nature Publishing Group
    Nature 297 (1982), S. 150-152 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Experiments were performed on internally perfused and voltage-clamped squid giant axons using the methods of Bezanilla et al. 4 to record Na+ and gating currents. Figure la shows that perfusion of the axon with a solution containing 60 mM chloroform reduced dramatically the magnitude of the inward ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/297150a0
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  • 6
    Electronic Resource
    Electronic Resource
    Potassium-selective single channels in guard cell protoplasts of Vicia faba (1984)
    [s.l.] : Nature Publishing Group
    Nature 312 (1984), S. 361-362 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Guard cell protoplasts were isolated from the lower epidermis of 3-week-old bean leaves (Vicia faba Weisskeimige Hang-down). Epidermal strips were exposed for 60-90 min to 2% cellulase (Rohament CT; Rohm), 0.5% pectinase (Rohament P; Rohm). 0.4 M mannitol and 1 mM CaCl2. Purified guard cell ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/312361a0
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  • 7
    Electronic Resource
    Electronic Resource
    Rigid motions in relativity (1981)
    Springer
    International journal of theoretical physics 20 (1981), S. 809-819 
    Details
    ISSN: 1572-9575
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Starting with a simple characterization of pairs of rigidly joined straight world lines, successive generalizations are obtained up to the most general case which allows us to establish the various definitions of rigid motions in relativity (both special and general).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00673691
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  • 8
    Electronic Resource
    Electronic Resource
    1H NMR structural study of 2-phenylthiazolidine (1981)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 17 (1981), S. 68-70 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Deuteration of 2-phenylthiazolidine, and its complexation with the shift reagent tris(1,1,1,2,2,3,3-heptafluoro-7,7-dimethyl-4,6-octanedionato)europium, have been used to study the signals and conformation of the heterocyclic protons and to interpret the 1H NMR spectrum of this 2-substituted thiazolidine.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1270170116
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  • 9
    Electronic Resource
    Electronic Resource
    A theoretical procedure to determine coefficients from the Rasberry-Heinrich calibration curve in XRF spectroscopy (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 10 (1981), S. 74-77 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: Relative X-ray fluorescent intensity data have been generated numerically for binary samples under mono-chromatic excitation in those cases of absorption plus enhancement that are dealt with in this work. These data were fitted to the empirical Rasberry-Heinrich equation, keeping both coefficients different from zero, since from our numerical calculations it is shown that in most cases the best fit is achieved when A ≠ 0. Furthermore, this approach shows that a third coefficient introduced into the empirical equation improves the fitting. The aforementioned results suggest that the empirical equation could be deduced from the theoretical equation of fundamental parameters under suitable approximation. The result is an equation similar to that of Rasberry and Heinrich, from which analytical approximated coefficients are obtained. It is then possible to calculate a calibration curve using fundamental parameters values.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300100208
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  • 10
    Electronic Resource
    Electronic Resource
    Influence of interelement effects on x-ray fluorescence calibration curve coefficients for binary mixtures (1982)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 11 (1982), S. 70-78 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: It has been shown that x-ray fluorescence calibration curve coefficients are closely related to matrix effects, such as absorption or absorption plus enhancement of the fluorescent radiation. In the classical paper of Rasberry and Heinrich,1 a single coefficient (named Aik) calibration curve was proposed when pure absorption is the predominant effect on the spectral line of interest. Similarly, and for practical purposes, a single coefficient (named Bik) was also considered when absorption and enhancement are present. We propose a new interpretation of calibration curve coefficients based on analytical expressions obtained recently for binary compounds under monochromatic excitation. Six distinct possible cases of calibration curves arise. Examples of binary compounds for each case are given. The data considered have been computed using the fundamental parameters method which allowed us to study a large number of possible mixtures for an arbitrary monochromatic excitation. Finally, through a different approach we discuss how this analysis could be extended to consider polychromatic excitation.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300110209
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