Results 91 to 100 of about 9,785 (280)

Study of sulfur isotopes by vibrational spectroscopy and quantum chemistry

, 2016
The results show the dependence of the experimental and calculated frequencies in the IR- and Raman spectra from the molecular mass of the sulfur isotope. The effect of a sulfur isotope shifts on the change of thermodynamic parameters.
Egorov, Nikolai Borisovich, Zhuravlev, N. A., Poleshchuk, Oleg Khemovich, Akimov, Dmitry Vasilievich, Zherin, Ivan Ignatyevich   +4 more
core   +1 more source

Stable isotopes to study sulfur amino acid utilization in broilers

Animal, 2020
Nutritionists have been discussing whether the dietary supplementation of cyst(e)ine is required as a part of the dietary methionine (Met) in the total sulfur amino acid (TSAA) requirement to achieve optimum performance in broilers.
R.M. Suzuki, L.G. Pacheco, J.C.P. Dorigam, J.C. Denadai, G.S. Viana, H.R. Varella, C.C.N. Nascimento, J. Van Milgen, N.K. Sakomura   +8 more
doaj   +1 more source

Theoretical investigation of the anomalous equilibrium fractionation of multiple sulfur isotopes during adsorption

, 2009
Adsorption processes of gaseous molecules are known to be associated with isotopic fractionation, this being supported both experimentally and theoretically, From theoretical considerations [Lasaga, A.C., Otake, T., Watanabe, Y., Ohmoto, H.
Mauri, F., Lazzeri, M., Blanchard, Marc, Cartigny, Pierre, Balan, Etienne, Cartigny, P., Blanchard, M., Cabaret, D., Lazzeri, Michele, Mauri, Francesco, Cabaret, Delphine   +10 more
core   +1 more source

Use of the stable isotopes of carbon, nitrogen and sulfur for studies on coastal ecology [PDF]

, 2008
Stable isotopes of carbon, nitrogen and sulfur have been successfully used for.diverse applications in coastal ecology. Most studies dealt with the elucidation of food webs using carbon and nitrogen isotopes, and sometimes sulfur isotopes.
Carvalho, Matheus Carvalho de, Carvalho de Carvalho, Matheus   +1 more
core  

Equilibrium Fractionation of Sulfur Isotopes

, 1969
The existence of significant and consistent fractionation of sulfur isotopes in natural coexisting sulfide mineral pairs is demonstrated. Such fractionations are shown to depend exclusively on the mineralogy of the assemblage and temperature of ...
Grootenboer, John
core  

Chemical composition and stable sulfur isotopes in sediment core KOT97-3GC

, 2005
Chemical composition and stable sulfur isotopes in sediment core KOT97 ...
Bo Barker Jørgensen (6965981), Jørgensen, Bo Barker   +1 more
core   +1 more source

Biochar‐based fertilizers improve nutrient use efficiency in sunflower grown on a subtropical tidal soil

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Improving fertilizer use efficiency is essential for reducing environmental pollution, sustaining agricultural production, and maximizing the economic profitability of crop production systems. This study tested the hypothesis that the formulation strategy of biochar‐based fertilizers, rather than nutrient addition alone, is associated with ...
Md. Al‐Amin, Miftahul Jannat Mim, S. M. Mahbubul Alam, Shamim Mia, M. M. Masud, Gopal Saha, Md. Abdul Kader, Keiji Jindo   +7 more
wiley   +1 more source

The Effect of Water Chemistry on Thermochemical Sulfate Reduction: A Case Study from the Ordovician in the Tazhong Area, Northwest China

Geofluids, 2017
Formation water chemistry, sulfate sulfur isotopes, and associated H2S contents and sulfur isotopes were measured from the Ordovician in Tazhong area, Tarim Basin.
Hongxia Li, Chunfang Cai, Lianqi Jia, Chenlu Xu, Ke Zhang   +4 more
doaj   +1 more source

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

, 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  

Paediatric development of radiopharmaceutical imaging agents and radioligand therapeutics

British Journal of Clinical Pharmacology, EarlyView.
Abstract This review focuses on the development of radiopharmaceutical imaging agents and radioligand therapeutics for paediatric use. Nuclear medicine plays an important role in the diagnosis and treatment of various childhood conditions, including cancers, infections and brain disorders.
Justin L. Hay, Amandine Manon, Hunter Stephens, S. Y. Amy Cheung, Bart de Keizer, Erik T. te Beek   +5 more
wiley   +1 more source