نتایج جستجو برای: experimental model
تعداد نتایج: 2632721 فیلتر نتایج به سال:
background and purpose: heart disease death rates have increased worldwide.family-oriented empowerment model improves the quality of life in the patients with chronic diseases. this study aims to determine the effect of family-oriented empowerment model on the life quality of the patients undergoing coronary artery bypass graft. methods: a quasi-experimental study was performed on the patients ...
the geometry of a collector is one of the important factors that can increase the incident radiation on the collector surface. in the present study, the incident radiation for a stationary collector with cone geometry, i.e. a conical collector, is theoretically and experimentally investigated. this type of collector is always stable and does not need a fixture to install. moreover, it has a sym...
Background & Objectives: Streptozotocin (STZ) is used for induction of Type-1 diabetes mellitus in animal models. Its beta-cytotoxic action results in sudden release of insulin leading to severe hypoglycaemia and even mortality. However, its sensitivity varies with species. Present investigation was aimed at studying STZ induced acute clinical effects in rabbits. Methods: Str...
introduction: multiple sclerosis (ms) is a chronic inflammatory demyelinating disease. in the present study, we investigated the response of subventricular zone (svz) adult stem cells in the experimental autoimmune encephalomyelitis (eae), an animal model of ms, and also the differentiation fate of these stem cells. methods: mice were immunized with mog peptide emulsified in complete freund&apo...
marine industry requires continued development of new technologies in order to produce oil. an essential requirement in design is to be able to compare experimental data from prototype structures with predicted information from a corresponding analytical finite element model. in this study, structural model updating may be defined as the fit of an existing analytical model in the light of measu...
two groups of students were assigned as experimental and control ones, and were given instruction on directed reading-thinking activities and after some treatment, they were post-tested. although the initial pre-test did not show any significant differences, the final post-test result revealed that the cooperative reading comprehension helped the experimental group. the cooperative students’...
the present study was conducted to investigate the role of summary in teaching grammar process on pre-university students. to this end, 48 male pre-university students in semnan were participants. they were math class that we called experimental group and science class as control group. in order to make sure there was no significant difference in proficiency level of two groups. a pre-test wa...
abstract recent studies suggest that prelistening activities play an important role in the development of listening comprehension (e.g. long 1990;chiang and dunkel 1992; schmidt-rinehart 1994; jensen and hansen 1995; robinson et al., 1995; buck, 1995; foster and skehan,1996; teng 1996; robinson, 2001; chang and read 2006). in line with previous studies and to shed light on a new aspect of sche...
this study investigated the effect of prior knowledge on the listening comprehension performance of fl learners. twenty students, male and female, drawn from the two intact groups of the senior and junior english language and literature majors were chosen as the participants of this study . the two groups were then randomly assigned into the experimental and control group. the experimental gr...
Reaction times (rts) are an important source of information in experimental psychology. Classical methodological considerations pertaining to the statistical analysis of rt data are optimized for analyses of aggregated data, based on subject or item means (c.f., Forster & Dickinson, 1976). Mixedeffects modeling (see, e.g., Baayen, Davidson, & Bates, 2008) does not require prior aggregation and ...
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