Results 21 to 30 of about 133,959 (307)
ChemistryEurope, 2023 In the energy landscape of coordination‐driven self‐assembly processes, the isolation of kinetically formed supramolecular cages has long been identified as a challenging task.
Sota Watanabe +3 more
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An NMR Study on How Steric Effects Affect Synergistic Effects in Surfactant Mixtures
Chinese Journal of Magnetic Resonance, 2018 NMR spectra of aqueous solutions of cetyltrimethylammonium bromide (CTAB)/triton X-100 (TX-100), sodium dodecyl sulfate (SDS)/TX-100 and CTAB/TX-100/SDS surfactant mixtures were acquired.
CHEN Xiao-ying +4 more
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Steric Effects on Space Electroosmotic Thrusters in Soft Nanochannels
Mathematics, 2021 The influence of steric effects on the performances of space electroosmotic thrusters (EOTs) was numerically delineated in soft nanochannels for which its walls are covered with polyelectrolyte materials.
Jiaxuan Zheng, Beinan Jia, Yongjun Jian
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Steric effects in cyclization reactions [PDF]
Australian Journal of Chemistry, 1976 Calculations of geometric probability factors indicate that steric effects are important in determining whether the cyclization of β-substituted diallylmethylammonium ions results in five- or six-memberedrings. Evidence is obtained of the direction of intramolecular attack.
David H. Solomon +3 more
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Effect of polarity and steric on the rate addition of free radicals to Alkenes [PDF]
Kirkuk Journal of Science, 2009 In this investigation, the effective factors on the addition rate for hydroxy methyl and cynomethyl free radicals to some alkenes have been studied using quantum mechanics methods. Where in this study, physical properties like the electron density on the
Najla.J. Khalil, Mostafa.R. Aeyd
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Antioxidant and Cytoprotective Effects of Tibetan Tea and Its Phenolic Components
Molecules, 2018 Tibetan tea (Kangzhuan) is an essential beverage of the Tibetan people. In this study, a lyophilized aqueous extract of Tibetan tea (LATT) was prepared and analyzed by HPLC.
Hong Xie +7 more
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Al-Kitab Journal for Pure Sciences, 2023 Alkaline hydrolysis rates coefficients for the series of methyl 3-(7-substituted-1-naphthyl) propynoate was calculated in 70%v/v dimethylsulphoxide-water at various temperatures (25,30,40, and 50̊ C).
Khalaf D. F. Ghadir +3 more
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Sea Surface Height Changes due to the Tropical Cyclone-Induced Water Mixing in the Yellow Sea, Korea
Frontiers in Earth Science, 2022 Sea surface height changes due to the tropical cyclone (TC)-induced water mixing in the Yellow Sea, Korea, were investigated using temperature and salinity profile data obtained by two Argo floats during the summer and fall of 2018 and 2020. Strong winds
KiRyong Kang, Il-Ju Moon
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Steric Effects Govern the Photoactivation of Phytochromes
ChemPhysChem, 2016 AbstractPhytochromes constitute a superfamily of photoreceptor proteins existing in two forms that absorb red (Pr) and far‐red (Pfr) light. Although it is well‐known that the conversion of Pr into Pfr (the biologically active form) is triggered by a Z→E photoisomerization of the linear tetrapyrrole chromophore, direct evidence is scarce as to why this ...
Olle Falklöf, Bo Durbeej
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FEBS Letters, EarlyView.Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer +10 more
wiley +1 more source