منابع مشابه
Distribution of rubidium-86 accumulated in the rabbit lens.
he in vitro accumulation of rubidium86 has provided a simple and convenient method for evaluating cation transport by the rabbit lens. The accumulation of rubidium occurred against a concentration gradient, was temperature dependent, demonstrated saturation kinetics, and was inhibited "competitively" by potassium. The accumulation was also inhibited by ouabain in concentrations as low as 10~ M....
متن کاملAccumulation of rubidium-86 by the rabbit lens.
Rabbit lenses incubated in vitro in potassium-free Tyrode's solution for 4 hours accinnulated trace amounts of Rb-86 to a concentration averaging 18 times that of the incubation medium. The uptake of Rb-86 was temperature dependent and required calcium. In the presence of glucose it was inhibited by iodoacetate, ouabain, or digoxin, but not by dinitrophenol, fluoroacetate, or anaerobiosis. The ...
متن کاملSTUDY OF NUCLEAR LEVEL DENSITY AND SPIN CUT-OFF FACTORS
Nuclear level densities and spin cut-off factors have been deduced for nuclei in the mass region 24‹A‹63,from a microscopic theory, which includes nuclear pairing interaction. Single particle levels for both Seeger and Nilsson potentials were used in the calcdations. Level densities extracted from the theory are compared with their conesponding experimental values, It is found that the overall...
متن کاملGradients in the regional rates of myocardial rubidium-86 clearance in tranquilized dogs.
In order to determine what gradients in local rates of myocardial blood flow are present in the resting hemodynamic state, the regional rates of myocardial clearance of Rb were measured in dogs tranquilized with chlorpromazine. The clearance rate in the left ventricle corresponded to an average coronary flow of 11.7 ml/g per 10 min. Estimated right ventricular flow was 7.1 ml/g per 10 min and l...
متن کاملTime-independent and time-dependent photoassociation of spin-polarized rubidium
We extract information about collisions of ultra-cold ground-state rubidium atoms from observations of a g-wave shape resonance in the 85Rb + 85Rb system via time-independent and time-dependent photoassociation. The shape resonance arises from a quasi-bound state inside a centrifugal barrier that enhances the excitation to the bound electronically excited state by the photoassociation laser in ...
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ژورنال
عنوان ژورنال: Nature
سال: 1951
ISSN: 0028-0836,1476-4687
DOI: 10.1038/168556a0