نتایج جستجو برای: samples t test
تعداد نتایج: 1758428 فیلتر نتایج به سال:
the aim of this study was to evaluate and compare the sensitivity of plant bioassays:tradescantia-micronucleus (trad-mcn) tests using bnl 02 and 4430 clones, and crepis capillaris hairyroots chromosome aberrations test. the evaluation of the sensitivity of the tests was based on the example of the analysis of the genotoxicity of water samples from two natural water reservoirs in poland: the raw...
background: immunochromatographic based rk39 antibody detection test became popular for the diagnosis of visceral leishmaiasis (vl) because of high sensitivity, rapidity, easy to interpret, and cost effectiveness. however, false positive result after complete cure of the patients is the major limitation with this test. the aim of the study to access the usefulness of non-invasive samples i.e. ...
چکیده : پژوهشگر در این تحقیق سعی کرده رویکرد مقایسه ای بصورت ارزیابی خصوصی سازی قبل و بعد از اجرای برنامه های خصوصی سازی را مدنظر قرار دهد. بطور کلی اهداف این پژوهش در دو بعد نظری و کاربردی طبقه بندی می گردد. تدوین ادبیات و کمک به غنی تر شدن مبانی نظری موضوع با استفاده از نظریات علمی از یکسو و شناسایی فعالیت های تئوریک و مفهومی دیگران با رویکرد مقایسه ای از سوی دیگر بخشی از اهداف نظری این تحقی...
AIM To assess short-term memory impairment in war veterans with combat-related posttraumatic stress disorder (PTSD). METHOD The study included 20 war veterans diagnosed with PTSD and 21 control subjects matched for age, sex, and education level. Both groups were tested with the Rey-Osterrieth Complex Figure Test (ROCFT), consisting of Copy, Immediate Recall, and Delayed Recall steps, and Bent...
in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
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