Results 211 to 220 of about 84,578 (267)
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Diffusion Isotope Effects in Isotope Mixtures
Berichte der Bunsengesellschaft für physikalische Chemie, 1972AbstractThe tracer diffusion of deuterium and tritium in the β‐phase of PdHn has been measured by means of special techniques, the time lag method with mass spectrometer or counter tube as detector, and the decay function of isotope exchange. It has been found that D atoms as tracer in β‐PdHn, i.e.
B. Bonn, E. Gans, G. Sicking, E. Wicke
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Isotopic catalysis and isotopic analysis
Russian Journal of Physical Chemistry B, 2013Isotopes with magnetic nuclei accelerate the biochemical reactions of adenosine triphosphate synthesis by a factor of two to three. An isotope effect in which isotopes are preserved in the reaction system is known as isotopic catalysis. It has been revealed in enzymatic reactions catalyzed by magnesium, zinc, and calcium ions.
S. E. Arkhangel’skii +4 more
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2013
Isotopic information determined by mass spectrometry can be used in a wide variety of applications. Broadly speaking these could be classified as "passive" applications, meaning that they use naturally occurring isotopic information, and "active" applications, meaning that the isotopic distributions are manipulated in some way.
Alan L, Rockwood, Magnus, Palmblad
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Isotopic information determined by mass spectrometry can be used in a wide variety of applications. Broadly speaking these could be classified as "passive" applications, meaning that they use naturally occurring isotopic information, and "active" applications, meaning that the isotopic distributions are manipulated in some way.
Alan L, Rockwood, Magnus, Palmblad
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The British Journal of Radiology, 1958
This unit for dispensing radioactive liquids has been designed to reduce the radiation hazard in handling the weekly consignment of 131I, which usually amounts to 100 mc. The problem was to extract the active liquid from the standard Amersham bottle and to prepare a stock solution from which desired amounts could be dispensed. The apparatus is shown in
A, SIVYER +4 more
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This unit for dispensing radioactive liquids has been designed to reduce the radiation hazard in handling the weekly consignment of 131I, which usually amounts to 100 mc. The problem was to extract the active liquid from the standard Amersham bottle and to prepare a stock solution from which desired amounts could be dispensed. The apparatus is shown in
A, SIVYER +4 more
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Baillière's Clinical Rheumatology, 1996
Patients with a wide variety of rheumatological conditions can be usefully investigated by nuclear medicine techniques and particularly by bone scintigraphy. This aspect of nuclear medicine work is increasing and the trend can be expected to continue.
P J, Ryan, I, Fogelman
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Patients with a wide variety of rheumatological conditions can be usefully investigated by nuclear medicine techniques and particularly by bone scintigraphy. This aspect of nuclear medicine work is increasing and the trend can be expected to continue.
P J, Ryan, I, Fogelman
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Journal of the American Medical Association, 1948
This year marks two important anniversaries for radioactivity in the fields of biology and medicine: (1) the golden anniversary of the discovery of radium for use in radiation treatment and (2) the silver anniversary of the use of radioactive atoms for tracing stable atoms—that is, of the tracer atom technic.
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This year marks two important anniversaries for radioactivity in the fields of biology and medicine: (1) the golden anniversary of the discovery of radium for use in radiation treatment and (2) the silver anniversary of the use of radioactive atoms for tracing stable atoms—that is, of the tracer atom technic.
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Terra Nova, 1998
The closure of isotopic chronometers to loss or exchange of radiogenic daughters is best analysed in terms of phenomena that induce recrystallization, i.e. fluid circulation and strain. In the presence of these fast phenomena, temperature is not a rate‐controlling parameter for isotope transport. Only in those rare instances where no fast mechanism can
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The closure of isotopic chronometers to loss or exchange of radiogenic daughters is best analysed in terms of phenomena that induce recrystallization, i.e. fluid circulation and strain. In the presence of these fast phenomena, temperature is not a rate‐controlling parameter for isotope transport. Only in those rare instances where no fast mechanism can
openaire +2 more sources