نتایج جستجو برای: opr
تعداد نتایج: 329 فیلتر نتایج به سال:
(so-tDCS) was applied over the frontal cortex of rats during slowwave sleep (SWS) and its effects on memory consolidation in the one-trial object-place recognition task (OPR) were examined. The OPR is a spatial memory task, and has been shown to depend critically on intact hippocampal function (Bussey et al., 2000; Mumby et al., 2002). It does not involve stressful procedures or food deprivatio...
AbstractDynamic data distribution is used to enhance data locality and algorithm performance with reducing inter-processor communication in data parallel programs on distributed memory multi-computers. Since the exchange of data is performed at run-time, there is a performance tradeoff between the efficiency of the new data decomposition for a subsequent phase of an algorithm and the cost of ex...
A prospective cohort study has been performed to find out if the administration of an oxytocin antagonist (Atosiban) at the occasion of embryo transfer has an effect on the pregnancy rate in patients with repeated failure of implantation. A total of 52 women with repeated failure of implantation after IVF/ICSI were included in this study. The ongoing pregnancy rate (OPR) in the total group of p...
The role of the Na(+)-Ca2+ exchanger of heart mitochondria in cellular functioning is not yet clear. The objectives of this study were to investigate the effects of stimulation and inhibition of the Na(+)-Ca2+ exchanger on the matrix free Ca2+ concentration in isolated heart mitochondria and to determine the consequences of these changes on the rate of NADH production via Krebs cycle turnover a...
Previous pressure broadening results for the normal hydrogen/water system displayed a dramatic reduction in the broadening at low temperature. Theoretical predictions, the basis for which are calculated collisional excitation rates, indicated stronger excitation, with a steady increase in the broadening as the temperature drops. Due to this disagreement, concerns were raised about the stability...
Despite the importance of online product recommendations (OPR) in e-Commerce transactions, there is still very little understanding about how different recommendation sources affect consumers' beliefs and behavior, and whether these effects are additive, complementary or rivals for different types of products. This study investigates the differential effects of provider recommendations (PR) and...
Embryo cryopreservation is an important aspect of assisted reproduction. Many methods have been described, but they have been poorly investigated in randomized trials, highlighting the need for a systematic review of the literature. Meticulous electronic/hand searches were performed to locate randomized trials (RCT) comparing embryo cryopreservation methods. Primary outcomes were clinical pregn...
Reaction of the siderophore analog tris(benzene-o-dithiol) ligand H6-1 with Ti(OPr)4 in methanol leads to the formation of the siderophore analog complex (Ph4As)2[Ti(1)3] exhibiting exclusively thiolato coordination to the metal center.
The Centers for Disease Control and Prevention (CDC) has published significant data trends related to substance abuse involving opioid pain relievers (OPR), benzodiazepines and alcohol in the United States. The CDC describes opioid misuse and abuse as an epidemic, with the use of OPR surpassing that of illicit drugs. Alcohol has also been a persistent problem and is associated with a number of ...
Um derivado da D-xylose, 1,2-O-isopropilideno-α-D-xilofuranose (1), com Ti(OPr) 4 foi usado como catalisador chiral na alquilação assimétrica do benzaldeído com dietilzinco (Et 2 Zn) para produção de 1-fenil-1-propanol em alto rendimento (conversão de 90%) e enantiosseletividade moderada (45% ee (S)). As condições ótimas (conversão e enantiosseletividade) para o sistema catalítico formado por 1...
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