Results 251 to 260 of about 139,467 (313)
Maize-bean intercropping mediates reduction in arthropod intraguild predation better than low-intensity farming-Stable isotope evidence. [PDF]
PLoS OneOtieno NE, Pryke JS, Mukasi J.
europepmc +1 more source
Germanium stable isotope measurements by double-spike MC-ICPMS.
J Anal At SpectromWölfer E, Burkhardt C, Kleine T.
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2016
Abstract Stable isotopes provide traceability throughout the ocean. The isotopes of a given chemical element have the same electronic structure and the same chemical behavior but slightly different weights. Therefore, slight variations of their relative abundance occur in nature because the atom diffusion speed and the atom bond strength
Matthieu Roy-Barman, Catherine Jeandel
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Abstract Stable isotopes provide traceability throughout the ocean. The isotopes of a given chemical element have the same electronic structure and the same chemical behavior but slightly different weights. Therefore, slight variations of their relative abundance occur in nature because the atom diffusion speed and the atom bond strength
Matthieu Roy-Barman, Catherine Jeandel
+4 more sources
2020
High precision deuterium and 13C measurement by continuous flow-IRMS: Organic and position-specific isotope analysis. Carbon isotope effects on key reactions in plant metabolism and 13C-patterns in natural compounds. Intramolecular deuterium distributions and plant growth conditions. Stable isotope studies of soil nitrogen.
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High precision deuterium and 13C measurement by continuous flow-IRMS: Organic and position-specific isotope analysis. Carbon isotope effects on key reactions in plant metabolism and 13C-patterns in natural compounds. Intramolecular deuterium distributions and plant growth conditions. Stable isotope studies of soil nitrogen.
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Nature Protocols, 2007
Stable-isotope probing is a method used in microbial ecology that provides a means by which specific functional groups of organisms that incorporate particular substrates are identified without the prerequisite of cultivation. Stable-isotope-labeled carbon (13C) or nitrogen (15N) sources are assimilated into microbial biomass of environmental samples ...
Neufeld, Josh D. +6 more
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Stable-isotope probing is a method used in microbial ecology that provides a means by which specific functional groups of organisms that incorporate particular substrates are identified without the prerequisite of cultivation. Stable-isotope-labeled carbon (13C) or nitrogen (15N) sources are assimilated into microbial biomass of environmental samples ...
Neufeld, Josh D. +6 more
openaire +4 more sources
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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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.
openaire +1 more source
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
Isotopes in Environmental and Health Studies, 2012
In order to achieve better mutual understanding, a uniform and unambiguous language concerning certain terms, symbols, units, and nomenclature in stable isotope – especially in 15N tracer technique has been recommended. In particular, some definitions of fundamental terms, some nomenclature rules for stable isotopically labelled compounds and some ...
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In order to achieve better mutual understanding, a uniform and unambiguous language concerning certain terms, symbols, units, and nomenclature in stable isotope – especially in 15N tracer technique has been recommended. In particular, some definitions of fundamental terms, some nomenclature rules for stable isotopically labelled compounds and some ...
openaire +1 more source