Results 21 to 30 of about 2,139,344 (304)

An investigation into the archaeological application of carbon stable isotope analysis used to establish crop water availability: solutions and ways forward [PDF]

open access: yes, 2011
Carbon stable isotope analysis of charred cereal remains is a relatively new method employed by archaeological scientists to investigate ancient climate and irrigation regimes. The aim of this study was to assess the effect of environmental variables
Jenkins, Emma L.   +2 more
core   +10 more sources

Correcting for Naturally Occurring Mass Isotopologue Abundances in Stable-Isotope Tracing Experiments with PolyMID

open access: yesMetabolites, 2021
Stable-isotope tracing is a method to measure intracellular metabolic pathway utilization by feeding a cellular system a stable-isotope-labeled tracer nutrient.
Heesoo Jeong   +5 more
doaj   +1 more source

Progress of copper isotope and its application in environmental pollution tracing

open access: yes地质科技通报, 2023
In recent years, environmental problems have been a hot topic of social concern, such as heavy metal pollution in the atmosphere, soil and sediment, which are closely related to our life.To solve the heavy metal pollution in environment, the key is to ...
Yan Han   +4 more
doaj   +1 more source

Definitions of arginine availability: a critical metabolic marker of physiological processes [PDF]

open access: yesFrontiers in Endocrinology
Mustafa Tosur   +3 more
doaj   +2 more sources

Stable Isotope Tracer Addition Reveals the Trophic Status of Benthic Infauna at an Intertidal Area Adjacent to a Seagrass Bed

open access: yesFrontiers in Marine Science, 2021
Stable isotope tracer addition can enhance the isotopic differences of primary producers for a wider food-web resolution than the use of natural abundance stable isotopes (NASIs) alone, particularly in ecosystems where primary producers have similar NASI
Wenzhe Xu   +10 more
doaj   +1 more source

Ecohydrological travel times derived from in situ stable water isotope measurements in trees during a semi-controlled pot experiment [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Tree water uptake processes and ecohydrological travel times have gained more attention in recent ecohydrological studies. In situ measurement techniques for stable water isotopes offer great potential to investigate these processes but have not been ...
D. Mennekes   +4 more
doaj   +1 more source

Principles of stable isotope research – with special reference to protein metabolism

open access: yesClinical Nutrition Open Science, 2021
Summary: The key to understanding the mechanisms regulating disease stems from the ability to accurately quantify the dynamic nature of the metabolism underlying the physiological and pathological changes occurring as a result of the disease.
Daniel J. Wilkinson   +2 more
doaj   +1 more source

Structure and flow of carbon and nitrogen to the western Irish Sea Nephrops norvegicus fishery: a stable isotope approach. [PDF]

open access: yes, 2008
PhDStable isotope analysis was used to describe the structure and flow of organic matter (carbon and nitrogen) from primary production in the water column to the benthos, and into secondary production that supports a fishery for the lobster Nephrops ...
Hill, Jacqueline M
core   +4 more sources

Cyanate is a low abundance but actively cycled nitrogen compound in soil

open access: yesCommunications Earth & Environment, 2021
Biotic processes drive rapid cyanate turnover and dominate cyanate consumption in soils, according to an extensive soil survey and stable isotope tracer experiments.
Maria Mooshammer   +4 more
doaj   +1 more source

The value of water isotope data on improving process understanding in a glacierized catchment on the Tibetan Plateau [PDF]

open access: yesHydrology and Earth System Sciences, 2021
This study integrated a water isotope module into the hydrological model THREW (Tsinghua Representative Elementary Watershed) which has been successfully used in high and cold regions.
Y. Nan   +5 more
doaj   +1 more source

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