نتایج جستجو برای: among review of 98 articles
تعداد نتایج: 21402343 فیلتر نتایج به سال:
the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...
abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
Background and Aim: Premarital sex is forbidden legally, culturally, and religiously in Iran. Compared to other youth, this behavior is less common among religious youth and theists. This study aimed at providing a systematic review of the relation between religion and spirituality and premarital sex among youth in Iran. Materials and Methods: In this systematic review, PubMed, Scopus, PreQues...
Aims Considering the adverse effects of anxiety in pregnant women during pregnancy and labor, various studies have investigated nursing and obstetric techniques as alternative treatment methods to improve mental health and reduce anxiety in pregnant women of low-risk and high-risk groups. This study aims to review the existing literature on this subject and provide a conclusion. Methods & Mate...
data extraction primary outcomes were incidence, prevalence, or odds ratio of having osteoporosis, defined as bone mineral density t-score < -2.5 sd. results of 353 articles, 344 articles were excluded, 9 underwent full-length review and data were extracted from 7 studies consisting of 113,558 patients. finally, 3 extracted studies were included in the meta-analysis of osteoporosis. among cohor...
Objectives Maxillary implant-supported over-denture is a suitable treatment where conventional denture cannot be used. Few studies are available on maxillary over-denture while more are available on mandibular over-denture with no literature referring to attachment selection in maxillary over-dentures. The objective of this literature review was to see attachment selection strategies in maxill...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
background: anemia is the most common blood disorder observed in vulnerable groups and affects their efficiency in their everyday activities. possible complications of the disease may be reduced or prevented by screening of patients. screening programs impose certain costs upon the health system, which may offset their positive effects. whether the positive impacts of screening outweigh its cos...
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