Results 71 to 80 of about 116,875 (192)

ASSESSMENT OF POSSIBLE USE OF CARBON ISOTOPE RATIOS IN AMINO ACIDS FOR MEAT PRODUCT GEOGRAPHICAL ORIGIN IDENTIFICATION

Ветеринария сегодня, 2018
Possible use of compound-specific isotope analysis (GC-C-IRMS) was assessed using 255 meat samples from 24 countries. Upon results of isotope ratio (δ13C) determination in amino acids after gas chromatographic separation samples were classified using ...
A. I. Solovyev, I. V. Podkolzin
doaj  

Isotope Effect in the Superfluid Density of HTS Cuprates: Stripes, Pseudogap and Impurities

, 2005
Underdoped cuprates exhibit a normal-state pseudogap, and their spins and doped carriers tend to spatially separate into 1- or 2-D stripes. Some view these as central to superconductivity, others as peripheral and merely competing.
G. V. M. Williams, J. L. Tallon, J. R. Cooper, J. Storey, J. P. Franck, R. S. Islam, W. D. Allen   +6 more
core   +1 more source

Fractionation of nitrogen isotopes in the enzymatic deamination of alanine: an insight into the quantitative evaluation of anaerobic metabolism in ecosystems

Progress in Earth and Planetary Science
Nitrogen isotope ratios of amino acids have been employed as a tool for illustrating the resource utilization of organisms and the trophic transfer between organisms in food webs.
Yuko Takizawa, Hyuntae Choi, Mio Shibuya, Nayeon Park, Prarthana S. Dharampal, Shawn A. Steffan, Yoshito Chikaraishi   +6 more
doaj   +1 more source

Evidence for structural and electronic instabilities at intermediate temperatures in $\kappa$-(BEDT-TTF)$_{2}$X for X=Cu[N(CN)$_{2}$]Cl, Cu[N(CN)$_{2}$]Br and Cu(NCS)$_{2}$: Implications for the phase diagram of these quasi-2D organic superconductors

, 2001
We present high-resolution measurements of the coefficient of thermal expansion $\alpha (T)=\partial \ln l(T)/\partial T$ of the quasi-twodimensional (quasi-2D) salts $\kappa$-(BEDT-TTF)$_2$X with X = Cu(NCS)$_2$, Cu[N(CN)$_2$]Br and Cu[N(CN)$_2$]Cl.
A. Aburto, A. Kawamoto, A. Kawamoto, A. Kawamoto, A. M. Kini, A. M. Kini, A. M. Kini, A. M. Kini, A. Painelli, B. Andraka, C. A. Angell, C. E. Campos, F. Gugenberger, F. Steglich, H. Akutsu, H. Elsinger, H. H. Wang, H. H. Wang, H. Ito, H. Kino, H. Mayaffre, H. Mayaffre, H. Mayaffre, H. Posselt, J. A. Schlueter, J. E. Schirber, J. E. Schirber, J. E. Schirber, J. Müller, J. Müller, J. Müller, J. Wosnitza, K. Frikach, K. Kanoda, K. Kanoda, K. Kanoda, K. Miyagawa, K. Murata, K. Saito, L. Pintschovius, M. A. deBolt, M. A. Tanatar, M. A. Tanatar, M. Kund, M. Kund, M. Kund, M. Kund, M. Lang, M. Lang, M. Maesato, M. Rahal, P. C. W. Leung, P. Nagel, P. Wzietek, R. H. McKenzie, R. H. McKenzie, R. Pott, S. Gärtner, S. Lefebvre, S. M. DeSoto, T. F. Stalcup, T. Sasaki, T. Sasaki, T. Simizu, U. Geiser, U. Geiser, U. Welp, V. Kataev, W. Kauzmann, X. Su, X. Su, X. Su, Y. Nakazawa, Y. Nakazawa, Y. Nakazawa, Y. V. Sushko, Y. Watanabe   +76 more
core   +1 more source

Derivatization of Levoglucosan for Compound-Specific δ13C Analysis by Gas Chromatography/Combustion/Isotope Ratio Mass Spectrometry

International Journal of Analytical Chemistry, 2020
Levoglucosan is a thermal decomposition product of cellulose in particulate matter. δ13C value of levoglucosan could be used in studying the combustion mechanisms and chemical pathways. In order to introduce a minimum number of carbon atoms, based on the
Dongling Zhang, Swe Swe Aung, Yong Han, Yanlin Zhang, Yingjun Chen, Hongli Li, Feifei Yu, Yangjun Wang, Jialiang Feng, Wu Wang   +9 more
doaj   +1 more source

Analysis of omega-3 and omega-6 polyunsaturated fatty acid metabolism by compound-specific isotope analysis in humans. [PDF]

J Lipid Res, 2023
Chen DK, Metherel AH, Rezaei K, Parzanini C, Chen CT, Ramsden CE, Horowitz M, Faurot KR, MacIntosh B, Zamora D, Bazinet RP.   +10 more
europepmc   +1 more source

Investigation on the 48Ca+249-252Cf reactions synthesizing isotopes of the superheavy element 118

, 2012
The study of the $^{48}$Ca+$^{249,250,251,252}$Cf reactions in a wide energy interval around the external barrier has been achieved with the aim of investigating the dynamical effects of the entrance channel via the $^{48}$Ca induced reactions on the ...
Giardina, G., Mandaglio, G., Nasirov, A. K., Sobiczewski, A.   +3 more
core   +1 more source

Tracing terrestrial nitrogen contributions to the salt marsh food web of the Obitsu River estuary in Tokyo Bay using compound-specific δ15N analysis of amino acids

Progress in Earth and Planetary Science
Salt marshes, which sustain high productivity, serve as essential living environments for a wide range of organisms. The aquatic food web in salt marshes is basically supported by the high primary production of aquatic algae within the intertidal zone ...
Satoshi Furota, Naoto F. Ishikawa, Nanako O. Ogawa, Toshio Furota, Naohiko Ohkouchi   +4 more
doaj   +1 more source

Constraining topsoil pesticide degradation in a conceptual distributed catchment model with compound-specific isotope analysis (CSIA) [PDF]

Hydrology and Earth System Sciences
Predicting pesticide dissipation at the catchment scale using hydrological models is challenging due to limited field data distinguishing degradative from non-degradative processes.
S. Payraudeau, P. Alvarez-Zaldivar, P. van Dijk, G. Imfeld   +3 more
doaj   +1 more source

Assessing the Biodegradation of BTEX and Stress Response in a Bio-Permeable Reactive Barrier Using Compound-Specific Isotope Analysis. [PDF]

Int J Environ Res Public Health, 2022
Chen T, Wu Y, Wang J, Philippe CF.
europepmc   +1 more source