نتایج جستجو برای: 75 items
تعداد نتایج: 215093 فیلتر نتایج به سال:
The year of 2005 marks the 75th anniversary since Trumpler (1930) provided the first definitive proof of interstellar grains by demonstrating the existence of general absorption and reddening of starlight in the galactic plane. This article reviews our progressive understanding of the nature of interstellar dust.
Synaptogenesis requires orchestrated intercellular communication between synaptic partners, with trans-synaptic signals necessarily traversing the extracellular synaptomatrix separating presynaptic and postsynaptic cells. Extracellular matrix metalloproteinases (Mmps) regulated by secreted tissue inhibitors of metalloproteinases (Timps), cleave secreted and membrane-associated targets to sculpt...
Migration of labor in response to structural changes in the U.S. economy is explored. An empirical study of the migration decision and wage determination is used to evaluate: 1) whether unemployment plays a larger role in motivating the decision to migrate than spatial wage differences and 2) whether the population can be characterized as homogeneous regarding migration and wage determination. ...
abstract this study evaluated and compared medical terminology and english for the students of medicine (ii) as two representatives of the textbooks available on the iranian market for teaching english to the students of medicine. this research was performed on the basis of a teacher’s and a number of students’ attitudes and the students’ needs analysis for two reasons: first, to investigate...
Abstract Background: HIV/AIDS is a major world wide health concern. The present study was conducted to determine knowledge and attitudes towards AIDS among high school students in Pakdasht. Material and method: Six hundred and fifty five students (404 females and 251 males) from 10 pre-university centers participated in the survey. An anonymous self-administered questionnaire was used to meas...
BACKGROUND For people to be able to access, understand, and benefit from the increasing digitalization of health services, it is critical that services are provided in a way that meets the user's needs, resources, and competence. OBJECTIVE The objective of the study was to develop a questionnaire that captures the 7-dimensional eHealth Literacy Framework (eHLF). METHODS Draft items were cre...
this study investigates the effect of teacher’s repetition as an input enhancement technique in explicit teaching of vocabulary items on efl learners’ later retrieval. to this end, 66 persian speaking english learners, aged 18 - 29, homogenized through a standard proficiency test (opt), were chosen and put into two experimental and control groups, each 33 learners. general service list (gsl), a...
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