نتایج جستجو برای: pm25 concentration
تعداد نتایج: 381048 فیلتر نتایج به سال:
objective(s) herbal waters are extensively used in most parts of iran including mashhad. visiting a patient with total blindness due to daily ingestion of around 200 ml of herbal water (plant forty water) per day for six months was the rational for methanol determination in all herbal waters available in mashhad markets. materials and methods a total of two hundred and nineteen bottles of herba...
abstract objective: the aim of this study was evaluating the relationship between maternal serum lipid measured at 13-23 weeks of pregnancy and subsequent glucose intolerance. materials and methods: in a prospective study, 624 pregnant women prior to 23 weeks were eligible for the study. primarily, serum levels of total cholesterol, ldl cholesterol, hdl cholesterol, and triglyceride were measur...
Cell line cytotoxicity assays have become increasingly popular approaches for genetic and genomic studies of differential cytotoxic response. There are an increasing number of success stories, but relatively little evaluation of the statistical approaches used in such studies. In the vast majority of these studies, concentration response is summarized using curve-fitting approaches, and then su...
for determination of so2 concentration and its variation due to time and location within tehran air-shed area, department of environmental health, school of public health installed two units of semiautomatic air sampler, in tehran university campus and ghazvin-square area. collected samples were analyzed according to hydrogen peroxide method and for each month arithmetic mean was calculated. th...
this study at first level focused on definitions and descriptions of some landfills and landfills sites all around the world and survey on how important they are for regional governments and responsible in duty as a very important responsibility for locals and their health. at the second level we had a look on heavy metals concentration which are by many definitions as follows: lead, nickel,...
This paper presents different methods of concentration tests. Some existing methods are reviewed and more thoroughly described. The gaze tracking system developed at the Multimedia Systems Department of the Gdańsk University of Technology is presented and its principle of working is explained. Performed tests of the gaze tracker system show that it could make a useful system for concentration e...
This paper explores the effect of banking market structure on the market structure of industrial sectors. It asks whether concentration in the banking market promotes the formation of industries constituted by a few, large firms, or rather, whether it facilitates the continuous entry of new firms, thus maintaining unconcentrated market structures across industries. Theoretical arguments could b...
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