نتایج جستجو برای: in vitro study
تعداد نتایج: 17494118 فیلتر نتایج به سال:
abstract the current study examined the role of emotional intelligence and motivation on language learning of efl learners in iranian context. the participants of this study were 162 female and 100 male junior high school students. these participants were selected by convenient sampling method. to carry out the study two questionnaires were administered to the participants. first, the adap...
تغییرات ضربان قلب (heart rate variability) در طی التهاب سیستمیک کاهش پیدا می کند، امّا مکانیسم آن ناشناخته است. این مطالعه به منظور بررسی اثرات محیطی و مرکزی اینترلوکین6 به عنوان یکی از سایتوکاین های تولید شده در شرایط التهاب سیستمیک بر روی تغییرات ضربان قلب انجام شد. بدین منظور مطالعات مولکولی، in vitro و in vivo بر روی موش های balb/c نر طراحی و انجام شدند. با مطالعات مولکولی نشان داده شد که mr...
This paper presents our adaptation of Fryback and Thornbury's hierarchical scheme for modeling the efficacy of diagnostic imaging systems. The original scheme was designed to evaluate new medical imaging systems but is less successful when applied to evaluate new radiopharmaceuticals. The proposed adaptation, which is specifically directed toward evaluating targeted imaging agents, has 6 levels...
Immunological studies frequently analyze individual components (e.g., signaling pathways) of immune systems in a reductionist manner. In contrast, systems immunology aims to give a synthetic understanding of how these components function together as a whole. While immunological research involves in vivo and in vitro experiments, systems immunology research can also be conducted in silico. With ...
according to coates’s (2004, as cited in zhang, 2010) definition of "conversational dominance" (p.111), it refers to the phenomenon of a speaker dominating others in interaction. specifically, it means how a speaker makes use of certain strategies to get the floor and maintain the floor. thus, the amount of talk is the main measurement for the dominance of the conversation. whether a speaker do...
as far as bandura’s (1977) conceptualization of the sense of self-efficacy is concerned, it is argued to be context- and even task-specific, compared to other concepts like self-esteem (brown, 2000); therefore, upon the previous research studies, related theories and definitions, and the ideas and views obtained from the interviews conducted with the scholars, the current research study aimed a...
just as motivation is important in sla research, demotivation constitutes an important factor, too. there are many studies done on demotivation and burnout of teachers. many of these studies have been conducted on one or two aspects of english instruction. consequently, there are few studies which have been done on more than two aspects of english teaching. the aim of this study is to find out ...
the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...
this study investigated the effects of three kinds of gloss conditions, that is traditional non-call marginal gloss, audio gloss, and extended audio gloss, on reading comprehension and vocabulary gain of iranian upper- intermediate efl learners. to this end, three experimental and one control groups, each comprising 15 participants, took part in the current study. in order to ensure that the pa...
A series of novel imperatorin derivatives were synthesized from commercially available xanthotoxin. The in vitro pharmacological evaluation indicated that all of the compounds possessed potent vasodilatory activity. Among them, compounds (5b), (5d) and (5e) exhibited higher vasdilatory activity (with EC(50) values of 0.68 µM, 0.59 µM and 0.49 µM, respectively) than imperatorin (EC(50) = 1.12 µM...
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