Cooling Agents
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Genome of Sindbis Virus
32P-labeled ribonucleic acid (RNA) from purified Sindbis virus was examined for the presence of hidden breaks. Viral RNA was treated with acid at pH 2.9 or with formaldehyde and was analyzed on sucrose gradients or by polyacrylamide gel electrophoresis. The sedimentation pattern and mobility on polyacrylamide gels of the 42S RNA was unaffected by heating and
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14. Fluorimetric determination of cefuroxime in body fluids.
A simple and accurate fluorimetric procedure for measuring cefuroxime in body fluids is described. A fluorescent product was produced by addition of hydrochloric acid, heating, and cooling, followed by addition of sodium hydroxide and further heating at 100 degree C. The fluorescence intensity of the final solution was measured in a fluorimeter at an excitat
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15. Airborne minerals and related aerosol particles: Effects on climate and the environment
Aerosol particles are ubiquitous in the troposphere and exert an important influence on global climate and the environment. They affect climate through scattering, transmission, and absorption of radiation as well as by acting as nuclei for cloud formation. A significant fraction of the aerosol particle burden consists of minerals, and most of the remai
The National Academy of Sciences.
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16. Beta-receptor mechanisms in the superficial limb veins of the dog
The lateral saphenous vein of dogs was perfused at constant flow with autologous arterial blood, and perfusion and femoral vein pressures were monitored; changes in the difference between these pressures were due to changes in venomotor activity. Injection of isoproterenol into the perfusate caused the vein to dilate. The amount of dilatation depended on smo
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17. Temperature and synaptic efficacy in frog skeletal muscle.
1. Intracellular recording and voltage-clamp techniques were used to measure synaptic efficacy and the safety factor for neuromuscular transmission in frog skeletal muscle. All measurements were made in normal Ringer solution, in the absence of presynaptic or postsynaptic blocking agents. 2. Over a broad temperature range (10-30 degrees C), a small percentag