نتایج جستجو برای: resistance reaction
تعداد نتایج: 772357 فیلتر نتایج به سال:
In order to improve the corrosion resistance of aluminosilicate refractories by molten aluminum, alkaline fluoride NaF and cryolite Na3AlF6 powders were studied. Both physical and chemical properties are known to influence wetting and corrosion behavior. This paper devoted to determine the influence of alkaline fluoride and cryolite added to andalusite based castable on the reaction with a...
Background and Objective: Staphylococcus aureus is one of the most important human pathogens and common causes of nosocomial and acquired infections in the world. The aim of this study was to investigate antibiotic resistance in methicillin-resistant S. aureus (MRSA) strains and the molecular properties of S. aureus strains. Materials and Methods: For this purpose, a descriptive study was perf...
A mathematical model is described and applied for adsorption process of ethyl acetate from supercritical CO2 stream on activated carbon particles. This model has the ability of illustrating variation of effluent concentration towards different parameters such as flow rate, temperature and pressure. In this research, a vast area of operational conditions is experienced. Mass transfer resistance ...
Because human resource is one of the most important factors in the effectiveness and efficiency changes, Identifying the factors affecting the performance and reactions staff including their readiness for change and commitment to change is important. The purpose of this study was to determine the individual and psychological variables that influence employee reactions to organizational change i...
Blast, caused by Magnaprthe grisea, is often an important fungal disease in the production of rice in temperate and tropical areas including Iran. To determine reaction of rice cultivars against blast disease, 40 rice genotypes from Iran and other sources from Asia were selected. Four blast isolates from different races were used to test all rice genotypes in different greenhouse tests. In bl...
Background: Clarithromycin resistance in Helicbacter pylori has been found to be associated with point mutations in 23s rRNA gene leads to reduced affinity of the antibiotic to its ribosomal target or changing the site of methylation. The aim of this study was to determine the most important point mutations in 23s rRNA gene in H. pylori that are closely related to clarith-romycin resistance amo...
Background and Aims: Sleep disorders increase many diseases and a decrease physiological function. This study aimed to compare the effect of the two methods of high-intensity interval training (HIIT) and sleep regulation program and a combination of the two on insulin resistance and sensitivity, body fat percentage, and reaction time in adolescents with sleep disorders. Materials and Methods: ...
Evolution of the Ti/a-GelSi trilayer reactions has been investigated using transmission electron microscopy and Auger electron spectroscopy. Instead of amorphous phase formation, as usually observed in the Ti/Si bilayer reaction, the crystalline Ti,GeS is the first phase observed during the reaction. Preceding the equilibrium C5CTi(Si,Ge),, a substitutional solid solution type C49-Ti(Si,Ge), fo...
Cytochrome P450 enzymes metabolize various endogenous and exogenous small molecular weight compounds. Transport-associated proteins, such as P-glycoprotein, multidrug resistance-associated protein and lung resistance protein are overexpressed in drug-resistant cell lines, as well as in human tumors from various histologic origins, including malignant melanoma. Little is known about the expressi...
Tests of pulmonary mechanical function may be used in determining the prominent site of pulmonary reaction to intervention. Responses may be localized from a knowledge of changes in lung resistance and compliance. A peripheral airway or parenchymal response is characterized by a decrease in lung compliance. A central airway reaction is characterized by an increase in pulmonary resistance. In mi...
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