نتایج جستجو برای: 21 hours are more risky
تعداد نتایج: 6057563 فیلتر نتایج به سال:
this study aimed to study the risky behavior and its relationship with social capital amongst the high school students of kerman city. social capital theories of colman and putnam were selected as the theoretical framework. the abstracted variables of research model are social capital (network ties of respondent with teachers, family and friends. network ties of respondents’ family with school)...
this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...
This paper studies the degree of complementarity in working hours among coworkers production. Using matched employer-employee data, we first present facts on within-establishment relationship between wages and worked that are consistent with presence complementarities hours. Next, estimate elasticity substitution find it to be 0.69 aggregate 0.52 1.03 across industries. We validate our estimate...
OBJECTIVE The preservation of biological samples at a low temperature is important for later biochemical and/or histological analyses. However, the molecular viability of thawed samples has not been studied sufficiently in depth. The present study was undertaken to evaluate the viability of intact tissues, tissue homogenates, and isolated total RNA after defrosting for more than twenty-four hou...
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...
Adverse childhood experiences (ACEs) have been linked with risky health behaviors and the development of chronic diseases in adulthood. This study examined associations between ACEs, chronic diseases, and risky behaviors in adults living in Riyadh, Saudi Arabia in 2012 using the ACE International Questionnaire (ACE-IQ). A cross-sectional design was used, and adults who were at least 18 years of...
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