Results 61 to 70 of about 163,020 (214)

Sulfur isotope rations of sulfide minerals from the deposit of the Tsuchikura mine, Shiga Prafecture, Japan [PDF]

, 1998
Sulfur isotope rations of sulfide minerals in the ore specimens from the deposit of the Tsuchikura mine are distrib-uted in a range from -0.8 to 5.4%, mostly from +0.5 to 3.0%, close to the previous data (from +1 to +3%) by Miyake and Sasaki (1980).
Harada, Kaori, Yamamoto, Masahiro, Kase, Katsuo   +2 more
core   +1 more source

Using dental and activity indicators in order to explore possible sex differences in an adult rural medieval population from Thebes (Greece)

Anthropological Review, 2017
Assessing the subsistence strategies of past populations; through their dietary and occupational patterns; could provide important information regarding social status and possible gender differences, especially in turbulent historical periods, as the one
Michael Dimitra Ermioni, Iliadis Efstathios, Manolis Sotiris K.   +2 more
doaj   +1 more source

Sensitivity of tunable infrared laser spectroscopic measurements of Δ′¹⁷O in CO₂ to analytical conditions [PDF]

Atmospheric Measurement Techniques
Triple oxygen isotope (Δ′17O) measurements of CO2 are increasingly used in atmospheric and paleoenvironmental research, supported by the rise of tunable infrared laser direct absorption spectroscopy (TILDAS) as a cost- and time-effective method for ...
D. Bajnai, V. J. Hare, V. J. Hare
doaj   +1 more source

Applications of stable water and carbon isotopes in watershed research: Weathering, carbon cycling, and water balances [PDF]

, 2011
Research on rivers has traditionally involved concentration and flux measurements to better understand weathering, transport and cycling of materials from land to ocean.
Petelet-Giraud, Emmanuelle, Philippe Négrel, Heiko Freitag, Schulte, Peter, Van Geldern, Robert, Jean-Luc Probst, Peter Schulte, Ajaz Karim, Kevin Telmer, Johannes A.C. Barth, Probst, Jean-Luc, Freitag, Heiko, Karim, Ajaz, Robert van Geldern, Anne Probst, Telmer, Kevin, Négrel, Philippe, Barth, Johannes A.C., Probst, Anne, Ján Veizer, Veizer, Jan, Emmanuelle Petelet-Giraud, Barth, J. A. C., Barth, Johannes A. C.   +23 more
core   +1 more source

Plasma metabolomic profiles in liver cancer patients following stereotactic body radiotherapy

EBioMedicine, 2020
Background: Stereotactic body radiotherapy (SBRT) is an effective treatment for hepatocellular carcinoma (HCC). This study sought to identify differentially expressed plasma metabolites in HCC patients at baseline and early during SBRT, and to explore if
Sylvia S.W. Ng, Gun Ho Jang, Irwin J. Kurland, Yunping Qiu, Chandan Guha, Laura A. Dawson   +5 more
doaj   +1 more source

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

, 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  

Development of an advanced on-line position-specific stable carbon isotope system and application to methyl tert-butyl ether [PDF]

, 2009
We present an advanced system for on-line position-specific carbon isotope analysis. The main limitation of on-line intramolecular isotope ratio measurements has been that optimal pyrolytic fragments are obtained mostly at temperatures where the analyte ...
Gauchotte-Lindsay, C., Davis, Simon, Kalin, R., Davis, S., Kalin, R.M., O'Sullivan, G., Gauchotte, C.   +6 more
core   +1 more source

Carbon allocation and carbon isotope fluxes in the plant-soil-atmosphere continuum: a review [PDF]

, 2011
The terrestrial carbon (C) cycle has received increasing interest over the past few decades, however, there is still a lack of understanding of the fate of newly assimilated C allocated within plants and to the soil, stored within ecosystems and lost to ...
Gomez-Casanovas, N, Esperschütz, J., A. Knohl, S. Palacio, Brugnoli, E., Uchida, Y., M. Barthel, Bahn, Michael, Boeckx, P., Brüggemann, N., Badeck, Franz Werner, Gessler, Arthur; id_orcid, Kayler, Z, Barthel, Matti, Palacio, S., J. Esperschütz, Gavrichkova, O, Ghashghaie, Jaleh, F. Badeck, Salmon, Yann, Palacio, Sara, J. Ghashghaie, Barthel, M, N. Gomez-Casanovas, Salmon, Y., Gomez-Casanovas, Nuria, Buchmann, N, Badeck, F, Y. Salmon, Boeckx, Pascal, Barthel, M., Ghashghaie, J., Badeck, F., Esperschütz, J, Palacio, S, Brueggemann, N., A. Gessler, Y. Uchida, Gavrichkova, O., Keel, SG, M. Bahn, Keitel, C, Knohl, A, E. Brugnoli, Uchida, Y, Kuptz, Daniel, O. Gavrichkova, Kayler, Z., Knohl, A., Kuptz, D, Brugnoli, Enrico, Brüggemann, N, Brugnoli, E, Z. Kayler, Uchida, Yoshitaka, Keel, Sonjagisela, D. Kuptz, Keitel, C., Bahn, M, Knohl, Alexander, Keel, S. G., Buchmann, Nina; id_orcid, Gessler, A., Keitel, Claudia, Kayler, Zachary E., C. Keitel, Salmon, Y, Kuptz, D., Esperschütz, Jürgen, N. Brüggemann, Keel, S.G., Gomez-Casanovas, N., P. Boeckx, Gessler, A, S. G. Keel, Esperschuetz, J., Brüggemann, Nicolas, Gavrichkova, Olga, Buchmann, N., N. Buchmann, Ghashghaie, J, Keel, S., Bahn, M.   +82 more
core   +1 more source

Geology and stable isotope geochemistry of Paleoarchean sulfur. Formation, preservation and geobiology of ancient pyrite and barite [PDF]

, 2013
Sulfur isotopes in ancient sulfate and sulfide minerals provide a comprehensive record of microbial processes involved in the early sulfur cycle on Earth.
Roerdink, D.L., Petrology, NWO-NSO: Testing the robustness of the sulfur stable isotope biomarker and paleoredox indicator for planetary exploration   +2 more
core  

Carbon isotope anomaly in the major plant C-1 pool and its global biogeochemical implications [PDF]

, 2004
We report that the most abundant C-1 units of terrestrial plants, the methoxyl groups of pectin and lignin, have a unique carbon isotope signature exceptionally depleted in C-13.
Kalin, R., Keppler, F., Hamilton, JTG, McRoberts, WC, Harper, DB   +4 more
core   +1 more source