Results 271 to 280 of about 538,729 (318)
Free Radical Biology and Medicine, 2001 Apoptosis was studied under conditions that mimic the steady state of H(2)O(2) in vivo. This is at variance with previous studies involving a bolus addition of H(2)O(2), a procedure that disrupts the cellular homeostasis. The results allowed us to define three phases for H(2)O(2)-induced apoptosis in Jurkat T-cells with reference to cytosolic steady ...
Fernando Antunes, Enrique Cadenas
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Canadian Journal of Fisheries and Aquatic Sciences, 2002 Critical loads of acidity and the amount by which these critical loads are exceeded by atmospheric deposition (termed "exceedances") were estimated for 1469 lakes from five regions in south-central Ontario, Canada, using single lake chemistry measurements and sulphur deposition data for the period 19761999.
A. Henriksen +2 more
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Fuel, 1980 Abstract The chemical reduction of SO2 with North Dakota lignite has been discovered to be a facile reaction which occurs at a relatively low temperature of 600–650 °C. Under optimum conditions, the reaction chemistry can be controlled to allow 85–90% conversion of SO2 to free sulphur in a single-stage reaction.
Charles T. Ratcliffe, Gergely Pap
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Building a Steady Foundation through Equilibrium: Solution and Solid State Chemistry
Journal of Chemical Education, 2021We have developed a new foundation-level course at our institution that links the concept of chemical equilibria from four of the traditional subdisciplines (analytical, biochemistry, inorganic, and physical). The course, entitled Solution and Solid State Chemistry (CHEM 210), is designed to serve our chemistry and biochemistry majors, as well as those
Deon T. Miles, Evan E. Joslin
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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2020
The impact of glycosaminoglycan (chondroitin sulphate, CS) on bone morphogenetic protein - 2 (BMP - 2) structure, stability (thermal and chemical), association kinetics and conformation was monitored by multiple spectroscopic techniques (UV-Visible, fluorescence and circular dichroism). The absorbance in peptide region and fluorescence intensity of BMP
Monidipa, Konar, Harekrushna, Sahoo
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The impact of glycosaminoglycan (chondroitin sulphate, CS) on bone morphogenetic protein - 2 (BMP - 2) structure, stability (thermal and chemical), association kinetics and conformation was monitored by multiple spectroscopic techniques (UV-Visible, fluorescence and circular dichroism). The absorbance in peptide region and fluorescence intensity of BMP
Monidipa, Konar, Harekrushna, Sahoo
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Steady State Instability and Oscillation in Simplified Models of Tropospheric Chemistry
The Journal of Physical Chemistry A, 2001Three components have been identified as being common to oscillation in five related but increasingly complex models of tropospheric chemistry. The first of these components is an NOx-empty/refill cycle in which [NOx] grows or declines, depending upon the relative source rates of NOx and HOx, the latter being generally proportional to the rate of ...
Mark R. Tinsley, Richard J. Field
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Multiple steady states in atmospheric chemistry
Journal of Geophysical Research: Atmospheres, 1993The equations describing the distributions and concentrations of trace species are nonlinear and may thus possess more than one solution. Several authors have suggested that the steady‐state equations describing tropospheric and stratospheric chemistry may have multiple solutions, but the existence of such solutions has not been completely demonstrated.
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Steady states in hot atom chemistry
The Journal of Chemical Physics, 1978A detailed comparison is made with the predictions of the hydrodynamic steady state theory of hot atom reactions developed by Keizer [J. Chem. Phys. 58, 4524 (1973)] and those obtained from a more precise moment method solution of the Boltzmann equation.
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Combustion Theory and Modelling, 2003
Splitting techniques have been used extensively for computing reacting flows with detailed chemistry. Nevertheless, there are still some open questions with respect to efficiency and the error introduced by splitting. In this paper, the accuracy and effectiveness of split-operator methods for computing steady-state reacting flows are determined.
Douglas Schwer +3 more
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Splitting techniques have been used extensively for computing reacting flows with detailed chemistry. Nevertheless, there are still some open questions with respect to efficiency and the error introduced by splitting. In this paper, the accuracy and effectiveness of split-operator methods for computing steady-state reacting flows are determined.
Douglas Schwer +3 more
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