نتایج جستجو برای: hor al
تعداد نتایج: 443477 فیلتر نتایج به سال:
AIM This study aims to trace the influence of specialized kinesitherapeutic methodology (SKTM) on orthostatic reactivity in patients with ischemic stroke in the chronic period (ISChP). MATERIAL AND METHODS An active orthostatic test is used for the evaluation of the orthostatic reactions. The arterial blood pressure and heart rate were defined in the 10 minutes of supine position, before and ...
Most earth-abundant electrocatalysts suffer from negligible activity for the hydrogen oxidation reaction (HOR) and significant overpotentials for the hydrogen evolution reaction (HER) in acidic media. We designed earth-abundant, carbon-supported titanium tungsten carbide (TixW1 xC) nanoparticles decorated with surface Pt coatings ranging from the ‘‘single-atom’’ to the two-monolayer regime. Rea...
The interaction of the carbonyl hydride complex Cp*Mo(PMe(3))(2)(CO)H with Brønsted (fluorinated alcohols, (CF(3))(n)CH(3-n)OH (n = 1-3), and CF(3)COOH) and Lewis (Hg(C(6)F(5))(2), BF(3).OEt(2)) acids was studied by variable temperature IR and NMR ((1)H, (31)P, (13)C) spectroscopies in combination with DFT/B3LYP calculations. Among the two functionalities potentially capable of the interaction ...
Growth hormone.—The changes occurring in the normal rat following the administration of growth hormone and those evoked by the growth of Walk er carcinoma 256 in the rat are similar in many respects. In both instances there is an increase in energy expenditure and a decrease in respiratory quotient (5, 15, 17). Accompanying both is an in crease in water content (2, 10) and a decrease in fat s...
To maintain local pH levels near the electrode during electrochemical reactions, the use of buffer solutions is effective. Nevertheless, the critical effects of the buffer concentration on electrocatalytic performances have not been discussed in detail. In this study, two fundamental electrochemical reactions, oxygen reduction reaction (ORR) and hydrogen oxidation reaction (HOR), on a platinum ...
AIM This study aims to trace the influence of specialized kinesitherapeutic methodology (SKTM) on orthostatic reactivity in patients with ischemic stroke in the chronic period (ISChP). MATERIAL AND METHODS An active orthostatic test is used for the evaluation of the orthostatic reactions. The arterial blood pressure and heart rate were defined in the 10 minutes of supine position, before and ...
BACKGROUND Mitochondria contribute to oxidative stress, a phenomenon implicated in ovarian carcinogenesis. We hypothesized that inherited variants in mitochondrial-related genes influence epithelial ovarian cancer (EOC) susceptibility. METHODS Through a multicenter study of 1,815 Caucasian EOC cases and 1,900 controls, we investigated associations between EOC risk and 128 single nucleotide po...
Microkinetic analyses of aqueous electrochemistry involving gaseous H2 or O2, i.e., hydrogen evolution reaction (HER), hydrogen oxidation reaction (HOR), oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), are revisited. The Tafel slopes used to evaluate the rate determining steps generally assume extreme coverage of the adsorbed species (θ≈0 or ≈1), although, in practice, the ...
Our previous theoretical study on the performance limits of the platinum (Pt) nanoparticle catalyst for the hydrogen evolution reaction (HER) had shown that the mass transport losses at a partially catalyst-covered planar electrode are independent of the catalyst loading. This suggests that the two-dimensional (2D) numerical model used could be simplified to a one-dimensional (1D) model to prov...
Background and objectives The prognostic disparities in different molecular subtypes between young Chinese White American breast cancer patients remain unclear. goal of this study was to explore the differences aged ≤ 40 years. Methods We included female at or under age from Surveillance, Epidemiology, End Results database (SEER) West China Hospital Sichuan University. chi-square test, log-rank...
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