نتایج جستجو برای: similarity reduction sr

تعداد نتایج: 622009  

Journal: :The journal of physical chemistry. A 2013
Praneeth Reddy Nimmala Bokwon Yoon Robert L Whetten Uzi Landman Amala Dass

The preparation of gold nanomolecules with sizes other than Au(25)(SR)(18), Au(38)(SR)(24), Au(102)(SR)(44), and Au(144)(SR)(60) has been hampered by stability issues and low yields. Here we report a procedure to prepare Au(67)(SR)(35), for either R = -SCH(2)CH(2)Ph or -SC(6)H(13), allowing high-yield isolation (34%, ~10-mg quantities) of the title compound. Product high purity is assessed at e...

2016
Ryota Nakayama Naoki Nishida Masahiko Sakai

In this paper, we show that the SR transformation, a computationally equivalent transformation proposed by Şerbănuţă and Roşu, is a sound structure-preserving transformation for weakly-left-linear deterministic conditional term rewriting systems. More precisely, we show that every weakly-leftlinear deterministic conditional term rewriting system can be converted to an equivalent weakly-leftline...

Journal: :The Analyst 2014
Vijay Reddy Jupally Jacob G Thrasher Amala Dass

Quantized double layer (QDL) charging of a Au130(SR)50 nanomolecule is reported for the first time. In the past, QDL charging was known only for Au144(SR)60 and Au225(SR)75 nanomolecules, which intrigued much research in this field. Here, using differential pulse voltammetry, we demonstrate that Au130 shows QDL charging. Furthermore, 13 different oxidation-reduction waves corresponding to singl...

2010
P Law S Kharche J Higham H Zhang

The ultra rapid potassium current (IKur) is an attractive pharmacological target in atrial fibrillation (AF) management due to its atrial specific nature. An experimentally based 78% IKur reduction was incorporated into a human atrial action potential (AP) model under sinus rhythm (SR) and atrial fibrillation (AF) conditions. Its effects on cell and tissue level electrical activity were simulat...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2013
Atsushi Iwai Teruki Yoshimura Keiji Wada Satoshi Watabe Yuki Sakamoto Etsuro Ito Toshiaki Miura

A simple spectrophotometric method for the assay of steroid 5α-reductase (5α-SR) was developed in which 5α-dihydrotestosterone (5α-DHT) and 5α-androstane-3α,17β-diol (5α-diol), metabolites formed in the NADPH-dependent reduction of testosterone with enzyme sources of 5α-SR, were measured by enzymatic cycling using 3α-hydroxysteroid dehydrogenase in the presence of excess thionicotinamide-adenin...

Journal: :Bioresource technology 2010
Yu Zhang Jean-Pierre Henriet Jeroen Bursens Nico Boon

Anaerobic oxidation of methane coupled to sulphate reduction (SR-AOM) prevents oceanic methane emissions and is considered as a major environmental process in the deep-sea sediments. To stimulate in vitro SR-AOM activity, we designed a (continuous) high-pressure bioreactor system. Fed-batch mode incubations showed that the elevated methane pressure stimulated SR-AOM activity: when the methane p...

Journal: :IEEE transactions on neural networks and learning systems 2017
Nikolaos Passalis Anastasios Tefas

The vast majority of dimensionality reduction (DR) techniques rely on the second-order statistics to define their optimization objective. Even though this provides adequate results in most cases, it comes with several shortcomings. The methods require carefully designed regularizers and they are usually prone to outliers. In this paper, a new DR framework that can directly model the target dist...

Journal: :Journal of lipid research 2017
Bin Dong Mark Young Xueqing Liu Amar Bahadur Singh Jingwen Liu

The farnesoid X receptor (FXR) plays critical roles in plasma cholesterol metabolism, in particular HDL-cholesterol (HDL-C) homeostasis. Obeticholic acid (OCA) is a FXR agonist being developed for treating various chronic liver diseases. Previous studies reported inconsistent effects of OCA on regulating plasma cholesterol levels in different animal models and in different patient populations. ...

2017
Kazuki Iso Ichiro Watanabe Rikitake Kogawa Yasuo Okumura Koichi Nagashima Keiko Takahashi Ryuta Watanabe Masaru Arai Kimie Ohkubo Toshiko Nakai Atsushi Hirayama Mizuki Nikaido

BACKGROUND The relationship between atrial electrogram (EGM) characteristics in atrial fibrillation (AF) and those in sinus rhythm (SR) are generally unknown. The activation rate and direction may affect EGM characteristics. We examined characteristics of left atrial (LA) EGMs obtained during pacing from different sites. METHODS The study included 10 patients undergoing pulmonary vein isolati...

2000
HOI-YING N. HOLMAN DALE L. PERRY MICHAEL C. MARTIN GERALDINE M. LAMBLE WAYNE R. McKINNEY JENNIE C. HUNTER-CEVERA Terry C. Hazen Tamas Torok

chromate [Cr(VI)] species on surfaces of geologic materials. Time-resolved SR-FTIR spectra indicate that, in the presence of endoliths (mineral-inhabiting microorganisms), microbial reduction of Cr(VI) to Cr(III) compounds on basaltic mineral surfaces is the key mechanism of Cr(VI) transformation. It proceeds in at least a two-step reaction with Cr(V) compounds as possible intermediate products...

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