نتایج جستجو برای: frequency of use
تعداد نتایج: 21247749 فیلتر نتایج به سال:
the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...
the aim of the present study was the conducting of comparative analysis of allele pool of ukrainian population of thoroughbred horses and the populations from england, usa, russia and south korea using microsatellite loci of dna on the basis of our own researches and literary sources. comparative analysis of allele pool of thoroughbred populations from different countries was conducted using 6 ...
Introduction: The present study was carried out to compare contrast sensitivity among three groups of professional welders including (1) those who use gas metal Arc welding (GMAW) (2) those who use shield metal Arc welding (SMAW) and the group that uses resistance welding. . Material and Method: In this research, all the welders who use GMAW, SMAW and resistance welding working in an industry...
Abstract Background: Patients with addictions have many acute and chronic medical illnesses, both related and unrelated to their addictions. In spite of high incidence of substance-related disabilities, substance abuse is usually underdiagnosed in general hospitals. The objective of the present study was to investigate the frequency and pattern of substance use in patients with differen...
Introduction: Noise Induced Hearing Loss(NIHL) is among the most common occupational diseases which may cause irreversible and permanent hearing loss. Noise is the most frequent preventable occupational exposure. The most importanmt cause of NIHL is exposure to noise more than 85 dB and not to use hearing protection devices. Considering the importance of hearing protection deivices for preventi...
Background & Objective: The necessity of using wireless communications and the use of electromagnetic waves in today's world is obvious to everyone. Using of these equipment and development of them, although have many benefits but causes some anxiety on the way in which they influence on environment. One of the most effective ways of decreasing the unwanted effects of these waves is using of t...
today, chronic viral hepatitis is considered as a public health problem in the world. totally, 5% of the world population, especially in asia and africa suffer from this problem. the prevalence of acute hepatitis in america is 0.1-0.2 percent, 50% of those with hepatitis c (hcv) and 5-10% of them with hepatitis b (hcv) develop chronic hepatitis. determining hbv and hcv genotypes is important to...
Residential and commercial sectors are the main consumers of energy. According to available data, these two sectors account for more than one-third of total energy use. Moreover, heating and cooling systems contribute to the major share of energy use in a building. The current research economically evaluates the radio-frequency heating systems for use in residential buildings. A building in Dis...
Abstract Background and Objectives: Considering the increasing use of implant, many dentists are willing to use implants with the highest quality and ease of work. Therefore, the present study was performed to investigate the frequency of use and satisfaction of the dentists from different dental implant systems in Qom city. Methods: In this descriptive and cross-sectional study, a questionn...
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