Results 241 to 250 of about 226,366 (293)
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1996
Stable isotopes serve as naturally occurring tracers that can provide much information about how chemical reactions proceed in nature, such as which reactants are consumed and at what temperatures reactions occur. The stable isotopes of several of the lighter elements are sufficiently abundant and fractionate strongly enough to be of special usefulness.
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Stable isotopes serve as naturally occurring tracers that can provide much information about how chemical reactions proceed in nature, such as which reactants are consumed and at what temperatures reactions occur. The stable isotopes of several of the lighter elements are sufficiently abundant and fractionate strongly enough to be of special usefulness.
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European Journal of Pediatrics, 1997
The increased employment of stable isotope tracers for diagnostic and research purposes frequently raises questions on potential risks associated with their use, which is of particular importance in the paediatric age group. Biological effects and the potential of adverse events has been evaluated in a large number of animal and, in part, also human ...
B, Koletzko, T, Sauerwald, H, Demmelmair
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The increased employment of stable isotope tracers for diagnostic and research purposes frequently raises questions on potential risks associated with their use, which is of particular importance in the paediatric age group. Biological effects and the potential of adverse events has been evaluated in a large number of animal and, in part, also human ...
B, Koletzko, T, Sauerwald, H, Demmelmair
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Stable isotopes in ecological studies
Oecologia, 2005Stable isotope ratio analyses at natural abundance levels are an increasingly useful tool in ecological studies, with new papers being published in nearly every issue of Oecologia and other ecological journals. In April 2004, the National Institute of Water and Atmospheric Research (NIWA) and the Institute of Geological and Nuclear Sciences (IGNS) co ...
David R, Thompson +4 more
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Stable Isotope Probing and Plants
2014This chapter summarizes the applications of stable isotope probing (SIP) technology in plant-soil systems and presents an overview of the progress achieved in the understanding of the plant-soil microbe interactions and their role in ecosystem functioning.
Lu, Y., Conrad, R.
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Nature Protocols, 2007
At the heart of microbial ecology lies a true scientific dichotomy. On the one hand, we know microbes are responsible for processes on which all other life on Earth is dependent; their removal would mean the cessation of all known life. However, in opposition, the majority of extant microbial species in natural environments have never been cultured or ...
Andrew S, Whiteley +3 more
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At the heart of microbial ecology lies a true scientific dichotomy. On the one hand, we know microbes are responsible for processes on which all other life on Earth is dependent; their removal would mean the cessation of all known life. However, in opposition, the majority of extant microbial species in natural environments have never been cultured or ...
Andrew S, Whiteley +3 more
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Labeling Monosaccharides With Stable Isotopes
2015Chemical and chemi-enzymic methods are discussed for the preparation of monosaccharide isotopomers that are singly and multiply labeled with (13)C, (2)H, (17/18)O, and (15)N isotopes. The discussion focuses primarily on chemical methods to incorporate stable isotopes into monosaccharides and not on methods to assemble labeled monosaccharides into more ...
Wenhui, Zhang +2 more
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Stable Isotopic Labeling for Proteomics
2011Since the coining of the term Proteome, the field of Proteomics has developed rapidly and come to rely heavily on mass spectrometry, initially for protein identification but recently the use of stable isotopic labels for protein quantitation has grown in importance.
Ashman, Keith +3 more
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Nutrition, 1998
There is a need for non-invasive tests of gastrointestinal and nutritional function. Clinical problems peculiar to infancy and childhood require prompt diagnosis, and methods that are invasive or involve the use of radioisotopes are often impractical or ethically unacceptable. What the pediatrician and clinical scientist seek are tests that are simple,
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There is a need for non-invasive tests of gastrointestinal and nutritional function. Clinical problems peculiar to infancy and childhood require prompt diagnosis, and methods that are invasive or involve the use of radioisotopes are often impractical or ethically unacceptable. What the pediatrician and clinical scientist seek are tests that are simple,
openaire +2 more sources