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  • Calcium  (2)
  • Polymer and Materials Science  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Effect of acetylcholine on electrical properties of subconfluent Madin Darby canine kidney cells
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 941 (1988), S. 217-224 
    Details
    ISSN: 0005-2736
    Keywords: (MDCK cell) ; Acetylcholine ; Atropine ; Calcium ; Membrane potential ; Microelectrode ; Potassium conductance
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(88)90182-4
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Caries susceptibility and renal excretion of calcium (1992)
    Springer
    Journal of molecular medicine 70 (1992), S. 735-739 
    Details
    ISSN: 1432-1440
    Keywords: Kidney ; Calcium ; Phosphate ; Sodium ; Caries
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Clearance studies were performed for 2 days in two groups of age-matched young female volunteers: those with low caries prevalence and those with high caries prevalence. Both groups were kept on a low-calcium diet for 1 week and received 0.5 g calcium at the beginning of the second day. In both groups, glomerular filtration rate, urinary flow rate and renal excretions of sodium, calcium, and phosphate were subject to significant circadian variations. In both groups the administration of calcium led to a significant increase in renal excretion of sodium and calcium and a significant decrease in that of phosphate. On the first day, calcium excretion was significantly greater in those with low caries prevalence than in those with high caries prevalence, pointing to altered calcium homeostasis in this group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00180739
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Dependence of polynucleotide helix-coil transition theory on the ring closure exponent (1969)
    New York : Wiley-Blackwell
    Biopolymers 7 (1969), S. 265-273 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Formulas are derived which relate the maximum slope of the helix-coil transition in synthetic polynucleotides to the stacking free energy and to the exponent k in the expression for the probability of ring closure for polymer chains. The exact value of k has not yet been determined. By use of the derived formulas, it is then shown that estimates of the stacking free energy are sensitive enough to the value chosen for k, so that exact values of these energies must await a precise determination of k.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1969.360070212
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    Paper (German National Licenses)
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