Results 81 to 90 of about 2,093,866 (195)

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

open access: yes, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Bearhop, S.   +8 more
core   +1 more source

Is the Mesolithic-Neolithic Subsistence Dichotomy Real? New Stable Isotope Evidence from the Danube Gorges [PDF]

open access: yes, 2004
The article presents new results of stable isotope analyses made on animal and human bones from the Mesolithic-early Neolithic sites of Lepenski Vir and Vlasac in the Danube Gorges of the Balkans.
Borić, Dušan   +6 more
core   +1 more source

¹⁵N stable isotope probing of pulp and paper wastewaters [PDF]

open access: yes, 2008
Stable isotope probing (SIP) is an established technique that can be applied to identify the metabolically active micro-organisms within a microbial population.
Addison, Sarah Louise
core  

Benchmarking stable isotope labeling based quantitative proteomics

open access: yesJournal of Proteomics, 2013
Several quantitative mass spectrometry based technologies have recently evolved to interrogate the complexity, interconnectivity and dynamic nature of proteomes. Currently, the most popular methods use either metabolic or chemical isotope labeling with MS based quantification or chemical labeling using isobaric tags with MS/MS based quantification ...
A.F. Maarten Altelaar   +7 more
openaire   +6 more sources

Effect of Online Enzyme Digestion on Quantitative Proteome Analysis with Stable Isotope Labeling Approach

open access: yes, 2012
Effect of Online Enzyme Digestion on Quantitative Proteome Analysis with Stable Isotope Labeling ...
卫晓鸾   +7 more
core  

Recent freshening in the Kara sea (Siberia) recorded by stable isotopes in Arctic bivalve shells, [PDF]

open access: yes, 2005
Oxygen and stable carbon isotope records along the growth direction on shells of the bivalve species Astarte borealis and Serripes groenlandicus reliably record all important aspects of the bottom water hydrography in the shallow southeastern Kara Sea ...
Simstich, Johannes   +13 more
core   +1 more source

Synthesis of Melamine-d6 and the Feasibility of Deuterium Labeled Compounds as Internal Standard

open access: yesJournal of Isotopes, 2015
S-triazine is an important chemical intermediate. Melamine belongs to s-triazine, which has been widely used as an additive in the food industry. To study the stable isotope labeling method of heterocyclic triazine compounds and its application, one step
GUO Yang-zhen   +3 more
doaj   +1 more source

Quantification of methane oxidation in the rice rhizosphere using 13C-labelled methane [PDF]

open access: yes, 1994
In this paper isotope ratio mass spectrometry is used to determine the methane (CH4) oxidation fraction in the rhizosphere of intact rice plant-soil systems.
Harren, F.J.M.   +11 more
core   +3 more sources

A stable isotope study of the hydrological systems in the Naukluft region in Namibia [PDF]

open access: yes, 2010
Includes abstract.Includes bibliographical references (leaves 84-89).The Naukluft Region is situated +- 200 km southwest of Windhoek in Namibia and includes the Naukluft Nappe Complex (NNC), a series of nappe stacks of severely thrusted and folded ...
Naude, Kate
core   +1 more source

Stable isotopic labeling of proteins for quantitative proteomic applications [PDF]

open access: yesBriefings in Functional Genomics and Proteomics, 2008
Straightforward methods for the introduction of stable isotopes into proteins with subsequent isolation and purification of the proteins will greatly aid the field of quantitative proteomics. Proteins containing amino acids with one or more of the stable isotopes of deuterium, 13C, 15N or 18O can be used as internal standards by addition at an early ...
openaire   +2 more sources

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