ZfN: Search Results

1	Author	Wilhelm Hasselbach, A. Ndrea Migala, Gafni, P. D. Boyer	Requires cookie*
	Title	Invariance of Stoichiometry of the Sarcoplasmic Reticulum Calcium Pump at Physiological Calcium Concentrations — a Reevaluation
	Abstract	The decline of the transport ratio of the sarcoplasmic calcium pump observed in a recent study (A. results from the retardation of calcium oxalate precipitation at low calcium/protein ratios. The prevailing high internal calcium level supports a rapid calcium backflux and a compensatory ATP hydrolysis during net calcium uptake which reduces the transport ratio. Yet, the determined calcium back flux does not fully account for the decline of the transport ratio. A supposed modulation of the stoichiometry of the pump by external calcium (0.1 ^m) is at variance with results of previous studies showing a constant transport ratio of two in the same calcium concentration range.
	Reference	Z. Naturforsch. 40c, 571—575 (1985); received May 20 1985
	Published	1985
	Keywords	Sarcoplasmic Reticulum, Calcium Pump, Stoichiometry
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	TEI-XML for	default:Reihe_C/40/ZNC-1985-40c-0571.pdf
	Identifier	ZNC-1985-40c-0571
	Volume	40

2	Author	A. Marini, V. Berbenni, V. Massarotti, D. Capsoni, G. Bruni	Requires cookie*
	Title	Solid State Reaction Study of the System Co-Li 2 CO 3
	Abstract	A detailed analysis of the reactive processes taking place in Co-Li 2 C0 3 was performed by use of thermogravimetry and X-ray diffraction. A reaction model is proposed which accounts for the nature, stoichiometry, and amount of the phases present, at room temperature, in samples subjected to different thermal treatments. In particular it is shown that the thermal treatment influences substantially the final lithium content and the relative amount of the Li-containing phases. The results obtained for powdered samples are compared with those obtained in a previous work for plaques.
	Reference	Z. Naturforsch. 51a, 813—820 (1996); received March 18 1996
	Published	1996
	Keywords	Cobalt oxides, Li-containing phases, stoichiometry, reaction model
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	TEI-XML for	default:Reihe_A/51/ZNA-1996-51a-0813.pdf
	Identifier	ZNA-1996-51a-0813
	Volume	51