نتایج جستجو برای: source of resistance
تعداد نتایج: 21230372 فیلتر نتایج به سال:
Background & Aims: Urinary tract infection (UTI) is the most common bacterial infection in renal transplant recipients. The aim of this study was to determine antimicrobial susceptibility patterns of Escherichia coli and Klebsiella pneumoniae isolates as well as determining cefotaxime Minimum Inhibitory Concentration (MIC) for obtained isolates.Materials & Methods: Escherichia coli and Klebsie...
Rhizomania disease is one of the most important diseases of sugar beet in Iran and many other parts of the world, and plays an essential role in decreasing sugar yield in fields. The best approach to control this disease is to use resistant varieties. For the involvement of resitance genes in breeding programs, tagging these genes by molecular markers is necessary. In this approach, some breedi...
One of the great enemies of rubber compounds is heat. Heat will cause chemical and physical degradation of vulcanized rubber as well as a considerable loss in its strength. A major source of heat generation in a tire is due to internal friction resulting from the viscoelastic deformation of the tire as it rolls along the road. Another source of heat generation in a tire is due to its contact fr...
One of the great enemies of rubber compounds is heat. Heat will cause chemical and physical degradation of vulcanized rubber as well as a considerable loss in its strength. A major source of heat generation in a tire is due to internal friction resulting from the viscoelastic deformation of the tire as it rolls along the road. Another source of heat generation in a tire is due to its contact fr...
Bachground and objectives: Hospital surfaces can serve as reservoirs of potential pathogen bacteria. Staff hands are the most important source of transmission in hospital. The prevalence of β–lactamase producer bacteria in staff hands and hospital surfaces, increase antibiotic resistance nosocomial infection. The aim of this study was to survey the spread of beta-lactam resistance St...
In Guilan province, Sefidrud River, as the main source of irrigating rice in Guilan province, has been subjected to increasing salinity and a decreasing discharge because of decreasing in the volume of sefidrud dam, diverting water upstream and entering different sewages into the river. This research tries to determine optimum irrigation depth and intermittent periods in proportion to salinity ...
Background & Aims: The purpose of this study was to compare the effects of 12-weeks of endurance and resistance training on ANP, Endothelin-1, Apelin and blood pressure in hypertensive middle-aged men. Materials & Methods: Twenty eight middle-aged men (age= 39.3±2.4 years and BMI= 28.6±1.7 kg/m2) with hypertensive volunteered to participate in this study and were randomly d...
Background & Aims: Diabetes is a metabolic disease that can lead to liver damage through oxidative stress. Regular physical activity and using purslane as a medicinal plant -due to its anti inflammatory compounds- may be effective in reducing injury. So the purpose of this study was to investigate the effects of 8 weeks of resistance training with and without portulacalo seeds on some of liv...
The heat transfer model of vertical ground heat exchangers for ground-source heat pump systems is discussed. An explicit solution of a finite line-source model has been derived to better describe temperature response of boreholes for long time steps, which can be easily incorporated into computer programs for thermal analysis of ground heat exchangers. A quasi-three-dimensional model is also pr...
Experimental results from GaN-based high electron mobility transistors (HEMTs) show a pronounced decrease of the transconductance gm at higher gate bias, due to increasing source-gate and gate-drain resistances. In this work we show through simulations that the electric field distribution and the resulting carrier velocity quasi-saturation are the main source for the transconductance collapse, ...
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