Results 271 to 280 of about 1,920,414 (308)

Kinetic investigation of malathion degradation in water

Bulletin of Environmental Contamination and Toxicology, 1975
Malathion exhibits considerable biological selectivity and has been the subject of many comparative biological studies. The kinetics of microbial degradation of malathion by aquatic organisms has been reported by PARIS et al. (2), and a kinetic study in soils has been carr-~ed--out by KONRAD et al.
N L, Wolfe, R G, Zepp, G L, Baughman, J A, Gordon   +3 more
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Kinetics of protein substrate degradation by HslUV

Journal of Structural Biology, 2004
The HslUV protease-chaperone complex degrades specific protein substrates in an ATP-dependent reaction. Current models propose that the HslU chaperone, a AAA protein of the Clp/Hsp100 family, binds and unfolds substrates and translocates the polypeptide into the catalytic cavity of the HslV protease.
Ae-Ran, Kwon, Christine B, Trame, David B, McKay   +2 more
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Nefopam Hydrochloride Degradation Kinetics in Solution

Journal of Pharmaceutical Sciences, 1990
A stability-indicating reversed-phase high performance liquid chromatographic method was developed for the detection of nefopam hydrochloride and its degradation products under accelerated degradation conditions. The degradation kinetics of nefopam hydrochloride in aqueous solutions over a pH range of 1.18 to 9.94 at 90 +/- 0.2 degrees C was studied ...
Y H, Tu, D P, Wang, L V, Allen
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Degradation kinetics and rheology of biodegradable polymers

Journal of Thermal Analysis and Calorimetry, 2009
Aliphatic polyesters are readily degradable polymers, hydrolysis being the dominant mechanism of degradation. On one side, this makes them extremely interesting for industrial applications in which degradability is required. On the other side, they present considerable processing problems due to their sensitivity to process and stocking conditions.
PARTINI M, ARGENIO O, COCCORULLO I, PANTANI, Roberto   +3 more
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Degradation of Chlorthalidone in Methanol: Kinetics and Stabilization

Journal of Pharmaceutical Sciences, 1985
The reaction of chlorthalidone with methanol to give the corresponding methyl ether was investigated. The kinetics are pseudo-first-order in chlorthalidone, but the observed pseudo-first-order rate constants show an unexpected dependence on the initial chlorthalidone concentration, attributable to the presence of trace catalytic impurities in ...
N K, Pandit, J S, Hinderliter
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Kinetics and Mechanism of Degradation of Ampicillin in Solution

Journal of Pharmaceutical Sciences, 1969
The kinetics of degradation of ampicillin (α-aminobenzyl penicillin) in solution was investigated at 35° and constant ionic strength of 0.5 over a pH range of 0.8 to 10. The observed rates, obtained by measuring the remaining intact penicillin, were shown to observe first-order kinetics and were shown to be significantly influenced by general acid and ...
J P, Hou, J W, Poole
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The kinetics of pesticide degradation

1988
chap.
Soulas, Guy, Fournier, J.C.
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Kinetic Study on Cephamycin C Degradation

Applied Biochemistry and Biotechnology, 2013
Cephamycin C (CepC) is a β-lactam antibiotic that belongs to the cephalosporin class of drugs. This compound stands out from other cephalosporins for its greater resistance to β-lactamases, which are enzymes produced by pathogenic microorganisms that present a major mechanism of bacterial resistance to β-lactam antibiotics.
Luciana M, Brites, Liliane M, Oliveira, Marlei, Barboza   +2 more
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Kinetic Treatments of Degradation

1996
Most photodegradation experiments are usually carried out in isothermal conditions, whereas polymers and plastics work in the environmental conditions within non-isothermal parameters. The rates of many degradation processes in polymers generally increase as the temperature rises.
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Kinetic study and mechanism of Niclosamide degradation

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014
A spectrophotometric kinetic study of Niclosamide alkaline degradation as a function of drug concentration, alkaline concentration and temperature has been established utilizing double divisor-ratio spectra spectrophotometric method. The developed method allowed determination of Niclosamide in presence of its alkaline degradation products; namely; 2 ...
Hala E, Zaazaa, Maha M, Abdelrahman, Nouruddin W, Ali, Maimana A, Magdy, M, Abdelkawy   +4 more
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