نتایج جستجو برای: mobile phone jammers
تعداد نتایج: 231873 فیلتر نتایج به سال:
the study comparatively identified the benefits of mobile telephone to users in selected rural and urban locations in obio/akpor local government area of rivers state, nigeria. stratified and simple random sampling techniques were used in selecting 60 rural and 60 urban phone users to have a total sample size of 120 respondents. structured questionnaire was used to generate data that were analy...
Background: Previous studies have shown that exposure to electromagnetic fields produced by magnetic resonance imaging or mobile phones can lead to increased microleakage of dental amalgam.Objective: The aim of the present study was to investigate the effect of electromagnetic field of a commercial dental light cure device and a common GSM mobile phone on microleakage of amalgam restorations.Ma...
reply to the letter sent by prof. viroj wiwanitkit entitled “radiofrequency radiation and human ferritin” authors of the article entitled “effects of radiofrequency radiation on human ferritin: an in-vitro enzymun assay” [1] would like to express their satisfactions, since the manuscript have been accessed and used as an element of reflection by a renowned researchers such as prof. wiwanitkit...
Background: Infertility is defined as inability to conceive after a year of sexual intercourses without the use of contraceptives. In half of the cases the causative factor is the male. Males are exposed to the effect of various environmental factors, which may decrease their reproductive capabilities. Phone electromagnetic power is very small, only a few hundredths of a microwave oven, but bec...
Background and Objectives: Increasingly, cyberbullying has become a common phenomenon eroding the social media environment. The present study was conducted with the aim of determining the structural relationship pattern of cyber aggression based on self-control with the mediation of mobile phone addiction in adolescents. Materials and Methods: In this descriptive study, the statistical populat...
objective: electro-magnetic radiation (emr) is emitted from mobile phones. various researches have shown relationships between mobile phone emr exposure to cancer and neurologic damages. this study aims to investigate the effects of mobile phone emr on brain antioxidant enzyme activity and the learning process. methods: rat pups and their dames were exposed to emr for 3 h per day from p2 to p1...
background: pre-exposure to radiofrequency radiations of mobile phones would significantly increase the survival rate of exposed animals compared to those exposed to a lethal dose of gamma radiation alone. stimulation of the immune system is believed to be a key mechanism for the induction of this phenomenon, the so-called “adaptive response.” the immune system protects organisms against infect...
This study was carried out to provide a structural model for illustrating the structural relationships between the amount of mobile phone usage and academic engagement with mediating role of attention in students at the University of Birjand. The statistical population of this study included all students studying at Birjand University in the academic year 2015-2016. Sample included 200 stude...
This quantitative, qualitative study investigates the usage of mobile phone applications in teaching and learning processes. The study aims to identify the benefits, difficulties, and resolutions of using mobile phone applications. The study was conducted in the English Department at Hebron University at the second semester of the academic years 2015/2016. The study focuses on the Business Engl...
Objectives: Most studies have performed to identify the affective variables in using mobile phone by drivers based on interview and questionnaire. In this study call answering rate while driving was investigated in a sample of male postgraduate students of a university in Tehran by a driving simulator. Methods: Six driving scenario designed differing in risk of driving. Answer rate to mobile...
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