in this study the effect of nitric oxide synthesis inhibition on stress-induced gastric damage was evaluated in bile duel ligated, sham operated and unoperated rats. animals were injected intraperitoneally with ng-nitro-l-arginine methylester (l-name), 40 mglkg, l-argininc, 200 mg/kg or saline, 30 min before water-immersion stress. one hour after water immersion, the animals were killed and the...

We examine the relationship between three approaches (Hadamard, DeWitt-Schwinger and adiabatic) to renormalization of expectation values field operators acting on a charged quantum scalar field. First, we demonstrate that representation Feynman Green's function is particular case Hadamard representation. Next, restrict attention spatially flat Friedmann-Lemaitre-Robertson-Walker universe with t...

In this paper, we have shown the matter bounce scenario of Universe in an extended symmetric teleparallel gravity, f(Q) gravity. Motivated from bouncing and loop quantum cosmology (LQC), form function $f(Q)$ has been obtained at backdrop Friedmann-Lemaitre-Robertson Walker (FLRW) space time. Considering background dominated by dust fluid, e-folding parameter expressed, which contains nonmetrici...

use of different pesticides in the agriculture sector, in order to boost crop yield within a short time period and low labor, has been tremendously increased since the last decade. pesticide use has elevated crop yield but has produced a number of pronounced problems regarding environmental and health safety. the continuously deteriorating toxicological effects of these pesticides are not only ...

background: occupational and environmental exposures mostly represent complex mixture of genotoxic agents, however there is a wide variation in the specificity of biomarkers. exploration of correlations among biomarkers contributes to the further progress of molecular cancer epidemiology and to the selection of the optimal biomarkers for the investigation of human exposure to carcinogens. the a...

the purpose of this study was to survey impacts of drought on socio-economic conditions of guilan paddy farmers. besides recognizing these impacts, it ranked them according to the viewpoint of the paddy farmers. it was of the descriptive- correlation type. questionnaire was the main tool of this study. to determine the validity of questionnaire used of comments of panel experts and reliability ...

an improved model of mud dispersion has been introduced in this work. the advantages of this model consist of a new analytical correlation for dispersivity by using resistivity log data and using a new aspect of capacitance dispersion model. mathematical formulations were expressed, solved by numerical model taking advantage of actual log and formation data. achieved results yielded reasonable ...