Results 21 to 30 of about 454,439 (293)
Electronic Shielding of the Crystalline Field in Thulium Ethyl Sulfate [PDF]
Physical Review Letters, 1963 The method of recoilless nuclear resonance absorption of gamma radiation was employed in investigating the temperature dependence of the nuclear quadrupole interaction in the 8.4-keV level of Tm169 in thulium ethyl sulfate, Tm(C2H5SO4)3•9H2O. The experiment reveals a strong influence of electronic shielding resulting from the polarization induced in ...
Barnes, R. G. +3 more
openaire +2 more sources
Citric acid wastewater as electron donor for biological sulfate reduction [PDF]
, 2009 Citrate-containing wastewater is used as electron donor for sulfate reduction in a biological treatment plant for the removal of sulfate. The pathway of citrate conversion coupled to sulfate reduction and the microorganisms involved were investigated ...
Stams, A.J.M. (author) +12 more
core +2 more sources
Biomolecules, 2015 Background: The quantitative, measurable detection of drinking is important for the successful treatment of alcohol misuse in transplantation of patients with alcohol disorders, people living with human immunodeficiency virus that need to adhere to ...
Radu M. Nanau, Manuela G. Neuman
doaj +1 more source
Nicotine aqueous solutions: pH-measurements and salting-out effects - analysis of the effective Gibbs energies of hydration and ionic strengths of the solutions [PDF]
Journal of the Serbian Chemical Society, 2014 This work is a continuation of our previous studies on the phase demixing - salting-out effects - in aqueous nicotine solutions. Thus, pH measurements were carried out allowing a brief analysis of the existing hydrogen bond interactions. Salting-
Grozdanić Nikola D. +4 more
doaj +1 more source
Molecules, 2021 The xanthine-derivatives 1,3,7-trimethylxanthine, 1,3-dimethyl-7-benzylxanthine and 1,3-dimethyl-7-(4-chlorobenzyl)xanthine are readily ethylated at N9 using the cheap alkylating agents ethyl tosylate or diethyl sulfate. The resulting xanthinium tosylate
Moloud Mokfi +3 more
doaj +1 more source
Biotechnological aspects of sulfate reduction with methane as electron donor [PDF]
, 2010 Biological sulfate reduction can be used for the removal and recovery of oxidized sulfur compounds and metals from waste streams. However, the costs of conventional electron donors, like hydrogen and ethanol, limit the application possibilities.
Meulepas, Roel J.W. +8 more
core +1 more source
ENZYMATIC PRODUCTION OF ETHYL OLEATE ESTER USING A LIPASE FROM CANDIDA ANTARCTICA B
Holos, 2012 Lipases are biocatalysts of great importance in different areas, being able to catalyze reactions in aqueous or organic media. Furthermore, these enzymes are capable of using several substrates being stable in a wide range of pH and temperatures. Lipases
N. Sampaio Neta +7 more
doaj +1 more source
Acid sulfate soils and their management for brackishwater fishponds [PDF]
, 1984 The major problems of fishponds build on acid sulfate soils are low pH; ionic imbalance and toxic levels of aluminum, iron, and sulfate; deficiency of phosphorus and poor response to fertilizer application; slow and poor growth of fish food organisms and
Poernomo, Alie T., Singh, Virendra P.
core +1 more source
Confounders of Serum Phosphatidylethanol: Role of Red Blood Cell Turnover and Cirrhosis
Hepatic Medicine: Evidence and Research, 2023 Marc Bartel,1,* Vanessa Hofmann,1,* Shijin Wang,2,3 Johannes Mueller,2 Tom R Sundermann,1 Sebastian Mueller2 1Institute of Forensic and Traffic Medicine, Heidelberg University Hospital, Heidelberg, Germany; 2Center for Alcohol Research ...
Bartel M +5 more
doaj
SYNTHESIS OF SOME NEW 2,4,6-TRISUBSTITUTEDTHIAZOLO-[5,4-d] PYRIMIDINE-5,7(4H,6H)-DIONES.
Zagazig Journal of Pharmaceutical Sciences, 1999 Reaction of 2,6-disubstitutedthiazolo5,4-dpyrimidin-7(6H)-ones 2 with ethyl chloroformate/ethanol mixture afforded 5-(ethoxycarbonylamino) -2-(substitutedthio) thiazole-4-(N-substituted)-carboxamides 4a-c.
Wahid Basyouni , Hanaa Hosni
doaj +1 more source