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  • calcium isotopes
  • Channon MB, Gordon GW, Morgan JLL et al (2015) Using natural, stable calcium isotopes of human blood to detect and monitor changes in bone mineral balance. (springer.com)
  • Heuser A, Tütken T, Gussone N et al (2011a) Calcium isotopes in fossil bones and teeth-diagenetic versus biogenic origin. (springer.com)
  • Heuser A, Frings-Meuthen P, Rittweger J et al (2011b) Calcium isotopes in human urine under simulated microgravity conditions. (springer.com)
  • Together, they have measured concentrations of calcium isotopes - specifically stable isotopes, which occur naturally and do not decay into other elements - in the urine of participants in a long-term bed-rest study run by NASA to mimic conditions seen in microgravity and study the effects on human anatomy. (earthmagazine.org)
  • analysis
  • SILT U is equipped for analysis of stable isotopes of H, C, and O, as well as preparation of samples for radiocarbon analysis. (tulane.edu)
  • Stable isotope analysis is a common and extremely useful tool for studying aquatic ecosystems from single cells to whole ecosystems. (aslo.org)
  • To complete this virtual issue, I asked four of the most cited L&O authors, P.M. Glibert, J.J. Middelburg, J.W. McClelland and M.J. Vander Zanden, to capture the history of stable isotope analysis for aquatic sciences and its future potential for limnological and oceanographic studies. (aslo.org)
  • This virtual issue contains 60 of our most influential papers in stable isotope analysis based on citation indicators but also from nominations by Glibert et al . (aslo.org)
  • However, stable isotope (δ 13 C and δ 15 N) analysis of mammal bone collagen provides a direct measure of diet and has been applied to two Neanderthals and various faunal species from Vindija Cave, Croatia. (pnas.org)
  • Because the radiocarbon sample preparation process includes assessments of stable isotopes, in part to control for potential contamination, this analysis also yielded stable isotope profiles for these late archaic humans. (pnas.org)
  • The principle and applications of stable isotope dilution assays (SIDAs) in mycotoxin analysis are critically reviewed. (ebscohost.com)
  • The content of tenuazonic acid in human urine was determined by a stable isotope dilution assay (SIDA) that was recently developed for the analysis of food commodities and extensively re-validated for urine matrix in this study. (ebscohost.com)
  • We are currently working on our system for analysis of deuterium of methane, are developing a method for analyzing C 13 and O 18 of carbon monoxide as part of the INFLUX project, and have completed a pilot project studying atmosperic N 2 O isotopes and isotopomers. (colorado.edu)
  • In addition to the stable isotope analysis, we are involved with the coring, processing , and modeling/analysis of the data. (colorado.edu)
  • This statement is the cornerstone for the development of a methodology based on the analysis of stable isotopes and directed to respond to questions as diverse as the structure and function of biological communities, migration patterns of species or populations or the study of the impact of global change on vector ecosystems. (csic.es)
  • Stable isotope analysis has become a key geochemical tracer of environmental pollution and for understanding the cycling, transport and uptake of earth's major elements. (dur.ac.uk)
  • We use combined stable isotope and fatty acid analysis to determine the relative contribution of red algae, brown algae and detritus/microalgae to the diet of wild abalone in Tasmanian waters. (springer.com)
  • IRMS
  • The HDevice is coupled to the dual inlet on any of the IRMS in the stable isotope lab, and is designed to analyze a small volume of sample (1 uL). (queensu.ca)
  • applications
  • Finally, current biomedical applications of Ca isotopes for the detection of bone loss during bed rest studies and during bone cancer are presented. (springer.com)
  • Bullen TD, Walczyk T (2009) Environmental and biomedical applications of natural metal stable isotope variations. (springer.com)
  • We hope this resource will be helpful to researchers and educators interested in stable isotope applications in aquatic systems. (aslo.org)
  • The review indicates that LCâ€"MS applications, in particular, require the use of stable isotopically labelled standards to compensate for losses during clean-up and for discrimination due to ion suppression. (ebscohost.com)
  • While the review may not necessarily be exhaustive, it will provide a comprehensive overview of areas where isotopes have been used and potential applications for the future. (springer.com)
  • Second, the past decade has seen a tremendous increase in the number of isotope applications to forensic problems. (springer.com)
  • The IX meeting of the Spanish Association of Terrestrial Ecology (AAET, Úbeda, 18-22 October 2009) hosted a symposium on the ecology of stable isotopes where the linear mixing model approach of partitioning sinks and sources of carbon and water fluxes within an ecosystem was challenged, and new applications of stable isotopes for the study of plant interactions were evaluated. (royalsocietypublishing.org)
  • atoms
  • Stable isotopes are non-radioactive atoms of a particular chemical element which have the same number of protons but different number of neutrons. (csic.es)
  • concentrations
  • The isotope measurements, along with concentrations of greenhouse gases in our atmosphere, constrain models of these gases, and increase their predictive capability for understanding future climate regimes and making policy decisions. (colorado.edu)
  • ecology
  • The author's humorous and lighthearted style painlessly imparts the principles of isotope ecology. (waterstones.com)
  • creates the basis for a graduate and post-graduate course in stable isotope ecology. (waterstones.com)
  • Fry does an excellent job of conveying to the reader the proper use of isotopes as they circulate within the biosphere, as well as introducing the exciting world of isotope ecology. (waterstones.com)
  • Brian Fry who has now produced a very timely contribution of eight chapters that are designed to introduce novice graduate students to the field of stable isotope ecology. (waterstones.com)
  • Stable isotope ecology has been challenging some established paradigms in ecology over the last decades, such as the paradigm of streamside trees using stream water ( Dawson & Ehleringer 1991 ) or leaf temperatures varying across the globe ( Helliker & Richter 2008 ), to name a few. (royalsocietypublishing.org)
  • The use of stable isotopes in ecology is evolving, and an increasing number of scientists and disciplines around the world are benefitting from this tool. (royalsocietypublishing.org)
  • elemental
  • The beauty of isotopes is that they can compress complexity," says Joseph Skulan , a geochemist and biologist at Elemental Biomarkers, LLC, in Lodi, Wis. (earthmagazine.org)
  • research
  • The INSTAAR Stable Isotope Lab is a focal point of interdisciplinary research programs: we partner with a global array of researchers from a variety of academic institutions and governmental agencies. (colorado.edu)
  • soil
  • Using stable isotope data from soil and vegetation xylem samples across a range of landscape positions, this study provides preliminary insights into spatial patterns and temporal dynamics of soil-pla. (bioportfolio.com)
  • Identification of dominant sulfamethoxazole-degraders in pig farm-impacted soil by DNA and protein stable isotope probing. (bioportfolio.com)