نتایج جستجو برای: 2h

تعداد نتایج: 10858  

Journal: :Dalton transactions 2011
Yuanyuan Li Jinping Liu Jian Jiang Jiaguo Yu

We report the fabrication of BiOCl nanoflake film by a simple and reliable hydrolysis of BiCl(3) ethanol solution at room temperature. The as-prepared film, when modified with 1H,1H,2H,2H,-perfluorodecyltrichlorosilane (FDTS), exhibits excellent superhydrophobicity and long-term durability under UV light irradiation for the first time.

Journal: :Journal of experimental psychology. Human perception and performance 2007
Michael J Richardson Kerry L Marsh Reuben M Baron

The current study investigated the perception of intrapersonal, interpersonal, and tool-based grasping possibilities. In Experiment 1, participants judged whether they would grasp planks of wood-presented in ascending, descending, and random orders of length-using one hand (1H), two hands (2H), or with a tool that extended their reach (TH). In Experiment 2, participants physically grasped the p...

Journal: :Molecules 2009
Milan Cacic Maja Molnar Tomislav Balic Nela Draca Valentina Rajkovic

(7-Hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid methyl ester(1) upon reaction with ethyl bromoacetate furnishes (7-ethoxycarbonylmethoxy-2-oxo-2H-chromen-4-yl)-acetic acid methylester (2), which on treatment with 100% hydrazine hydrate yields (7-hydrazinocarbonylmethoxy-2-oxo-2H-chromen-4-yl)-acetic acid hydrazide (3). The condensation of compound 3 with different aromatic aldehydes afforded a se...

Journal: :The Journal of biological chemistry 1975
H P Meloche L Mehler J M Wurster

In a condensation between [3-3H3]pyruvate and D-glyceraldehyde-3-P as catalyzed by 2-keto-3-deoxygluconate-6-P aldolase (EC 4.1.2.14) of Pseudomonas putida, C--C synthesis occurred appreciably faster than C--3H bond breaking. Since tritium is present in tritiated pyruvate in tracer amounts, this result showed hydrogen isotope discrimination in pyruvate deprotonation and suggests enolpyruvate ge...

Journal: :Nature materials 2016
Damien Voiry Raymond Fullon Jieun Yang Cecilia de Carvalho Castro E Silva Rajesh Kappera Ibrahim Bozkurt Daniel Kaplan Maureen J Lagos Philip E Batson Gautam Gupta Aditya D Mohite Liang Dong Dequan Er Vivek B Shenoy Tewodros Asefa Manish Chhowalla

The excellent catalytic activity of metallic MoS2 edges for the hydrogen evolution reaction (HER) has led to substantial efforts towards increasing the edge concentration. The 2H basal plane is less active for the HER because it is less conducting and therefore possesses less efficient charge transfer kinetics. Here we show that the activity of the 2H basal planes of monolayer MoS2 nanosheets c...

2015
Matthew R. Preimesberger Ananya Majumdar Selena L. Rice Lauren Que Juliette T. J. Lecomte

In addition to its well-known roles as an electrophile and general acid, the side chain of histidine often serves as a hydrogen bond (H-bond) acceptor. These H-bonds provide a convenient pH-dependent switch for local structure and functional motifs. In hundreds of instances, a histidine caps the N-terminus of α- and 310-helices by forming a backbone NH···Nδ1 H-bond. To characterize the resilien...

Journal: :Journal of lipid research 1995
P W Westerman

2H nuclear magnetic resonance (NMR) spectra were obtained at 30.87 MHz for 8% (w/v) aqueous dispersions of mixtures of bile salts (MBS), mixed intestinal lipids (MIL; myristic acid, monomyristoylglycerol, dimyristoylphosphatidylcholine = 5:1:1), and cholesterol, in which a single lipid component is selectively 2H-labeled. Using the observation that the time-averaged quadrupole splitting of a C2...

Journal: :Revista brasileira de anestesiologia 2007
Taylor Brandão Schnaider Antônio Mauro Vieira Antônio Carlos Aguiar Brandão Aretusa Chediak Roquim

BACKGROUND AND OBJECTIVES The association of drugs with different mechanisms of action in the dorsal horn of the spinal cord decreases postoperative pain, with a reduction in the incidence of side effects. The aim of this study was to evaluate postoperative analgesia and sedation by epidural S(+) ketamine and S(+) ketamine-morphine associated with ropivacaine in subcostal cholecystectomy. MET...

Behnam Javaheri, Gabor Somlyai, Hadi Davari Ildikó Somlyai Kirk A. Tamaddon László G. Boros Zoltán Gyöngyi

The two stable isotopes of hydrogen, protium (1H) and deuterium (2H) differ in their physicochemical nature. Deuterium-depleted water (DDW) significantly inhibited the growth rate of different tumor cell lines in culture media and xenotransplanted MDA-MB-231, MCF-7 human breast adenocarcinomas and PC-3 human prostate tumors in vivo. The apoptosis-triggering effect of DDW was demonstrat...

Journal: :Physical chemistry chemical physics : PCCP 2010
Atsuro Takai Claude P Gros Jean-Michel Barbe Shunichi Fukuzumi

A tripod zinc porphyrin (TPZn(3)) forms a stable 1:1 complex with gold(III) tetra(4-pyridyl)porphyrin (AuTPyP(+)) and free-base tris(4-pyridyl)porphyrin (2H-Py(3)P) in nonpolar solvents. The strong binding of TPZn(3) with AuTPyP(+) or 2H-Py(3)P results from the encapsulation of AuTPyP(+) or 2H-Py(3)P inside the cavity of TPZn(3) through multiple coordination bonds, as indicated by UV-vis-NIR, E...

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