Effect of Treatment Conditions on Matrix Stimulation of Carbonate Rocks with Chelating Agents

2021 ◽  
Author(s):  
Assad A. Barri ◽  
Amjed M. Hassan ◽  
Murtada Saleh Aljawad ◽  
Mohamed Mahmoud
Keyword(s):  
Carbonate Rocks ◽  
Chelating Agents ◽  
Treatment Conditions ◽  
Effect Of Treatment ◽  
Stimulation Of

scholarly journals Effect of treatment in vivo of rats with bacterial endotoxin on fructose 2,6-bisphosphate metabolism and L-pyruvate kinase activity and flux in isolated liver cells

1992 ◽  
Vol 284 (3) ◽  
pp. 761-766 ◽  
Author(s):  
E D Ceppi ◽  
R G Knowles ◽  
K M Carpenter ◽  
M A Titheradge
Keyword(s):  
Pyruvate Kinase ◽  
Intact Cell ◽  
Total Activity ◽  
Liver Cells ◽  
Bacterial Endotoxin ◽  
Phosphorylation State ◽  
Isolated Liver Cells ◽  
Effect Of Treatment ◽  
Isolated Liver ◽  
Stimulation Of

The effect of treatment of rats with bacterial endotoxin on fructose 2,6-bisphosphate (Fru-2,6-P2) metabolism was investigated in isolated liver cells prepared from 18 h-starved animals. The results obtained support the hypothesis that a stimulation of 6-phosphofructo-1-kinase (PFK-1) activity and an inhibition of fructose-1,6-bisphosphatase (Fru-1,6-P2ase) may be one mechanism underlying the inhibition of gluconeogenesis from lactate and pyruvate by endotoxin. We suggest that the stimulation of PFK-1 and inhibition of Fru-1,6-P2ase activity is the result of a 2-3-fold increase in Fru-2,6-P2. The latter is not due to changes in the total activity or phosphorylation state of the bifunctional 6-phosphofructo-2-kinase (PFK-2)/fructose-2,6-bisphosphatase, but appears to be the result of a decrease in the cytosolic concentration of phosphoenolpyruvate (PEP), an inhibitor of PFK-2 activity. The effect of endotoxin is resistant to the presence of glucagon, which has comparable effects in cells prepared from both control and endotoxin-treated animals. The mechanism by which endotoxin treatment of the rat decreases PEP and gluconeogenesis remains to be established. However, it does not involve alterations in either the total activity or the phosphorylation state of pyruvate kinase, nor does it involve increased flux through this enzyme in the intact cell, which is in fact decreased in this model of septic shock. It is suggested that the decreased flux may result from a lower rate of formation of PEP, suggesting that the prime lesion in sepsis is an inhibition of one or more of the steps leading to PEP formation.

Effect of treatment conditions of Pd-zeolite catalysts on activity and selectivity in isomerization of n-hexane

1969 ◽  
Vol 9 (4) ◽  
pp. 227-231
Author(s):  
K MINACHEV ◽  
V GARANIN ◽  
V KHARLAMOV ◽  
L PIGUZOVA ◽  
A VITUKHINA
Keyword(s):  
Zeolite Catalysts ◽  
Treatment Conditions ◽  
Effect Of Treatment

Effect of treatment conditions on parameters of nanocrystalline structure in Al-based alloys

2016 ◽  
Vol 183 ◽  
pp. 131-134 ◽  
Author(s):  
G. Abrosimova ◽  
D. Matveev ◽  
E. Pershina ◽  
A. Aronin
Keyword(s):  
Nanocrystalline Structure ◽  
Treatment Conditions ◽  
Effect Of Treatment

Effect of Treatment with Activated Prothrombin Complex Concentrate (FEIBA) on Factor VIII-Antibody Level

1978 ◽  
Vol 40 (02) ◽  
pp. 478-485 ◽  
Author(s):  
K Lechner ◽  
Ch Nowotny ◽  
B Krinninger ◽  
M Zegner ◽  
E Deutsch
Keyword(s):  
Factor Viii ◽  
Antibody Level ◽  
Prothrombin Complex Concentrate ◽  
Anamnestic Response ◽  
Activated Prothrombin Complex Concentrate ◽  
Inhibitor Level ◽  
Complex Preparation ◽  
Effect Of Treatment ◽  
High Doses ◽  
Stimulation Of

SummaryThe influence of treatment with an activated prothrombin complex preparation (FEIBA) on the antibody level was studied in 10 haemophiliacs with an antibody to factor VIII. The antibody level was observed to rise at least once in five patients, while in the remaining five patients no rise occurred. In all, 6 out of 31 treatments were followed by an anamnestic rise of the antibody level, corresponding to 19.4%. A rise of the inhibitor level following FEIBA treatment is likely to occur in patients who show a marked antibody rise after factor VIII treatment (good responders), but have a low antibody level at the time of treatment. High doses of FEIBA and simultaneous transfusion of red cells may also enhance the likelihood of an anamnestic response. Stimulation of antibody production is probably due to the presence of small amounts of factor VIII in this preparation.

Effect of Treatment Conditions on Nisin Inactivation of Gram-negative Bacteria

1992 ◽  
Vol 55 (10) ◽  
pp. 763-766 ◽  
Author(s):  
KELLY A. STEVENS ◽  
BRIAN W. SHELDON ◽  
N. ARLENE KLAPES ◽  
TODD R. KLAENHAMMER
Keyword(s):  
Citric Acid ◽  
Incubation Temperature ◽  
Chelating Agent ◽  
Gram Negative Bacteria ◽  
Citric Acid Monohydrate ◽  
Gram Negative ◽  
Treatment Conditions ◽  
Effect Of Treatment ◽  
Gram Negative Organisms ◽  
Sodium Phosphate Dibasic

A method using nisin and a chelating agent to inactivate Salmonella species and other gram-negative bacteria has been developed. The objective of this study was to determine the effect of treatment conditions on the application of this method. Ten gram-negative organisms were used in this study, including six Salmonella species commonly associated with foodborne illness. Organisms were selected on the basis of sensitivity to nisin and a chelating agent. The following parameters were examined: (a) chelating agent, (b) nisin concentration, (c) incubation temperature, and (d) protein interference. Chelating agents included EDTA, ethylenebis (oxyethylene-nitrilo) tetraacetic acid, citric acid monohydrate, and sodium phosphate dibasic. The most effective treatment consisted of 50 to 100 μg/ml nisin applied in combination with 20 mM EDTA or citric acid monohydrate at a temperature range of 30 to 42°C. All of the chelators examined exhibited some inhibitory activity. The addition of bovine serum albumin to the treatments containing nisin and EDTA did not result in a significant decrease in inhibitory action.

Thermochemical and Kinetic Aspects of Cadmium Telluride Solar Cell Processing

2001 ◽  
Vol 668 ◽  
Author(s):  
Brian E. McCandless
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Physical Vapor Deposition ◽  
Film Deposition ◽  
X Ray Diffraction ◽  
Large Area ◽  
Close Space Sublimation ◽  
Processing Strategies ◽  
Treatment Conditions ◽  
Effect Of Treatment

ABSTRACTA chemical and kinetic basis underlying processing strategies for thin film polycrystalline CdTe/CdS solar cell fabrication is presented. The processing conditions employed for moderate and high conversion efficiency CdTe/CdS solar cells fall within a consistent framework based on temperature and concentration of CdCl2 and O2 species during film deposition or thermal treatment. Detailed microstructural and compositional results are compared for thin-film CdTe/CdS structures with CdTe deposited by physical vapor deposition, electrodeposition and close-space sublimation. X-ray diffraction coupled with a model for diffusion of CdS into CdTe is used to determine the effect of treatment conditions on bulk and grain boundary diffusion coefficients. The effects of CdS diffusion, oxides, recrystallization and grain growth with respect to device efficiency, stability and process control over large area are discussed.

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