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Kinetics (1):
Recent article
Kinetics
Abstract
The mechanism of phenylselenoetherification of pent-4-en-1-ol using some bases (pyridine, triethylamine, quinoline, 2,2'-bipyridine) as catalyst was examined through studies of kinetics of the cyclization, by UV-VIS spectrophotometry. It was demonstrated that the intramolecular cycli...
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PMID: 20711793
PDF is available here.
PDF is available here.
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Abstract
The pleiotropic functions of disaccharide trehalose in the biology of nematodes and its absence from mammalian cells suggest that its biosynthesis may provide a useful target for developing novel nematicidal drugs. The trehalose-6-phosphate phosphatase (TPP), one of the enzymes of trehalose metabolis...
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PMID: 21658361
PDF is available here.
PDF is available here.
Abstract
Our study concludes that cellular uptake and cytotoxicity of DOX can be improved in MES-SA/Dx5 cells by loading DOX into PLGA NPs. DNPs targeted to membrane receptors may enhance cellular uptake and cytotoxicity in SKOV-3 cells. FROM THE CLINICAL EDITOR: The authors of this study compare the cellula...
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PMID: 21094277
PDF is available here.
PDF is available here.
Abstract
This work covers the synthesis of second generation, ethylene glycol dendrons covalently linked to a surface anchor that contains two, three or four catechol groups, the molecular assembly in aqueous buffer on titanium oxide surfaces, and the evaluation of the resistance of the monom...
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PMID: 21634791
PDF is available here.
PDF is available here.
Abstract
Objective-To determine the accuracy of pressure plate kinetic asymmetry indices (ASIs) for diagnosis of unilateral hind limb lameness in dogs and their correlation with visual gait assessment (VGA) scores. Animals-9 healthy dogs and 16 dogs with previously diagnosed unilateral rupture of the cranial...
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PMID: 21627529
PDF is available here.
PDF is available here.
Abstract
Objective-To investigate the ability of perzinfotel (an N-methyl-d-aspartate receptor antagonist) and a proprietary phospholipase A(2) (PLA(2)) inhibitor to attenuate lameness in dogs with sodium urate (SU)-induced synovitis. Animals-8 adult dogs. Procedures-A blinded 4-way crossover study was perfor...
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PMID: 21627521
PDF is available here.
PDF is available here.
Abstract
We hypothesized that human trypsin IV and rat P23, which activate PAR(2) and are resistant to pancreatic trypsin inhibitors, contribute to pancreatic inflammation and pain. Injections of a subinflammatory dose of exogenous trypsin increased c-Fos immunoreactivity, indicative of spinal nociceptive ac...
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PMID: 21436316
PDF is available here.
PDF is available here.
Enhanced arsenic sorption by hydrated iron (III) oxide-coated materials--mechanism and performances.
Abstract
Mechanism and performances of arsenic(III) [As(III)] and arsenic(V) [As(V)] sorption onto hydrated iron(III) oxide (HFO)-coated materials were investigated at neutral pH where arsenic occurs in both molecular and ionic forms. Arsenic sorption by HFO-coated materials was proven to be a multistage proc...
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PMID: 21751708
PDF is available here.
PDF is available here.
Abstract
The shelf life of fresh Italian pork sausages packed in modified atmosphere was studied. Samples were packed using different levels of oxygen (high and low) with different levels of carbon dioxide (high-low) in the atmospheres headspace and were stored at 4 °C for 9 days. Microbial,...
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PMID: 21693619
PDF is available here.
PDF is available here.
Abstract
To investigate the kinetic rate constants ozone and hydroxyl radicals towards two groups of antimicrobials -sulfadiazine (SD) and sulfamethoxazole (SMX).
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PMID: 21784311
PDF is available here.
PDF is available here.
Abstract
In this study, we examined the biodegradation of Dichloroethylene (DCE) by two strains of aerobic bacteria.
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PMID: 21784312
PDF is available here.
PDF is available here.
Abstract
We electronically measured the mean cell volume of rat glioma cells under three different experimental conditions, namely: at different osmolarities and constant NaCl concentration; at different NaCl concentrations and constant osmolarity and at different osmolarities caused by changes in NaCl conce...
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PMID: 21613671
PDF is available here.
PDF is available here.
Abstract
We propose a new series of 2-benzoxazolinone derivatives as potential cholinesterase inhibitors. These compounds were synthesized by condensation of 6-chloro acetyl-2-benzoxa zolinone with the corresponding amine and evaluated as acetylcholinesterase inhibitors using the colorimetric Ellman's method...
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PMID: 21699076
PDF is available here.
PDF is available here.
Abstract
The biotransformation of digitoxin and some of its derivatives extracted from Digitalis lanata by Streptomyces isolated species was investigated. Cultures of a Streptomyces strain designated EUSA2003B, isolated from an Egyptian soil sample, efficiently induced selective 12beta-hydroxylation of the st...
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PMID: 21699088
PDF is available here.
PDF is available here.
Abstract
The solid state properties and dissolution behaviour of binary systems of mefloquine hydrochloride (MH) with betaCD were investigated. MH-betaCD interaction in the solution state was studied by phase solubility analysis and demonstrates the ability of 3CD to complex with MH giving AL type profile wit...
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PMID: 21699079
PDF is available here.
PDF is available here.
Biochimica et Biophysica Acta (1807)9 2011
Abstract
We assessed ΔG'(ATP) hydrolysis, cytosolic [ADP], and the rate of phosphocreatine recovery using Phosphorus Magnetic Resonance Spectroscopy in the calf muscle of a group of patients affected by glycogen myo-phosphorylase deficiency (McArdle disease). The goal was to ascertain whether and to what ex...
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PMID: 21722623
PDF is available here.
PDF is available here.
Abstract
Our results are in good agreement with the experimental studies....
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PMID: 21609020
PDF is available here.
PDF is available here.
Abstract
An effective method for peptide sequencing based on phosphorylation strategy and UPLC-MS/MS is proposed in this report. A phosphorylation reaction was carried out by mixing model peptide solution with phosphorylation solution. UPLC-MS/MS was used to analyze and characterize the phosp...
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PMID: 21482258
PDF is available here.
PDF is available here.
Abstract
The kinetics for conversion of NO(+)(H(2)O)(n) to H(3)O(+)(H(2)O)(n) has been investigated as a function of temperature from 150 to 400 K. In contrast to previous studies, which show that the conversion goes completely through a reaction of NO(+)(H(2)O)(3), the present results show that NO(+)(H(2)O)(...
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PMID: 21591810
PDF is available here.
PDF is available here.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (369)1945 2011
Abstract
We present numerical simulations based on a Boltzmann kinetic model with competing interactions, aimed at characterizing the rheological properties of soft-glassy materials. The lattice kinetic model is shown to reproduce typical signatures of driven soft-glassy flows in confined geometries, such as...
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PMID: 21576158
PDF is available here.
PDF is available here.
Abstract
Proton pump inhibitors (PPI), e.g. pantoprazole (PP), esomeprazole (EP) and omeprazole (OP), work as anti-ulcer/gastrointestinal reflux drugs. Also, they are widely used in postoperative care of patients in cardiac surgery to prevent upper gastrointestinal bleeding. Therefore, in western industrial c...
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PMID: 21577199
PDF is available here.
PDF is available here.
Organic Letters (13)9 2011
Abstract
A dual-catalysis approach enables the small-molecule catalyzed kinetic resolution of allylic amines by acylation. By employing 2 mol % of each 4-(pyrrolidino)pyridine (PPY) and a readily available chiral hydrogen-bonding cocatalyst, the first nonenzymatic kinetic resolution of allyli...
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PMID: 21476518
PDF is available here.
PDF is available here.
Abstract
Iminodiacetic acid (IDA) has been widely used as an important intermediate in the fine chemical industry. In this study, a novel synthesis route of IDA from iminodiacetonitrile by whole microorganisms was investigated. A strain with the capability of producing nitrilase, ZJB-09133, w...
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PMID: 21567989
PDF is available here.
PDF is available here.
Abstract
We have recently reported a kinetic and mechanistic study on oxidative dissolution of silver nanoparticles (AgNPs) by H(2) O(2) . In the present study, the parameters that govern the dissolution of AgNPs by O(2) were revealed by using UV/Vis spectrophotometry. Under the same reaction conditions (Tri...
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PMID: 21608134
PDF is available here.
PDF is available here.
Abstract
We have developed a new, broad-specificity "xyloglucan glycosynthase", selected from active-site mutants of a bacterial endoxyloglucanase, which catalyzed the synthesis of high molar mass polysaccharides, with complex side-chain structures, from suitable glycosyl fluoride donor substrates. The produ...
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PMID: 21618981
PDF is available here.
PDF is available here.