نتایج جستجو برای: mobile phone

تعداد نتایج: 231591  

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
javad baharara dept. of biology, faculty of science, islamic azad university, mashhad branch farhang hadad dept. of biology, faculty of science, ferdowsi university, mashhad mohammad-ali shariatzade dept. of biology, faculty of science, arak university, arak mariam amirahmadi dept. of biology, faculty of science, islamic azad university, mashhad branch

background: in recent years, the widespread use of microwave producing instruments specially mobile phones; result in growing concern regarding the possible effects associated with these waves on human health. in the present study investigated the genotoxic effects of mobile phone radiation in adult mice (balb/c) and their embryos. methods: in this experimental research pregnant mice were irrad...

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...

Journal: :progress in biological sciences 2014
behnaz hajiuon

electromagnetic waves can damage sex organs and cause hormonal disorders, and garlic isknown to reduce risk factors for various diseases. the aim of this study was to investigate theprobable effects of mobile phone radiation and the consumption of garlic on testosterone levelsand testicular changes. five groups of rats were used: control, sham (exposed to 900 mhzwavelength), experimental group ...

Journal: :مجله علوم اعصاب شفای خاتم 0
babak khodaie shefa neuroscience research center, khatam alanbia hospital, tehran, iran. mahmoud lotfinia a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran. b. shahid beheshti university of medical sciences, tehran, iran. ahmad ali lotfinia shefa neuroscience research center, khatam alanbia hospital, tehran, iran. milad ahmadi a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran. b. faculty of veterinary medicine, islamic azad university, karaj branch, karaj, iran.

reviews in many countries indicate that drivers often talk on mobile (cell) phones. studies have been done on possible effects of concurrent mobile phone use on driving performance. previous studies have found that phone talking could impairs performance on simulated or instrumented driving tasks, using such measures as reaction time, following distance, and situational awareness. most of these...

Fatemeh Kholghi Mohammad Atefi Seyed Mohammad Javad Mortazavi

Background: The use of mobile phone by children is increasing drastically. Children are likely to accumulate many years of exposure during their lives. Furthermore, as nervous systems in children are developing, children may be at a greater risk compared to adults. In this light, some scientists have suggested that the use of mobile phones should be restricted in high-risk groups such as childr...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2014
agwu n. m. obasi r. o. oteh o. u anuakpado p. a

the place of information in addressing market access and participation limitation, which hinders farmer’s welfare and poverty reduction efforts in many developing countries, cannot be over-emphasized. this study therefore examined the use of mobile phone in the marketing of food crops among farming households in rural south east, nigeria. a multi stage sampling procedures was used in the select...

Journal: :journal of biomedical physics and engineering 0
m eghlidospour smj mortazavi f yousefi sar mortazavi

mobile phone use and wireless communication technology have grown explosively over the past decades. this rapid growth has caused widespread global concern about the potential detrimental effects of this technology on human health. stem cells generate specialized cell types of the tissue in which they reside through normal differentiation pathways. considering the undeniable importance of stem ...

Journal: :iranian journal of medical physics 0
mehri kaviani moghadam ph.d. student in medical physics, tarbiat modares university, tehran, iran , seyed mohammad jafar pourmir firoozabadi associate professor, medical physics dept., tarbiat modares university, tehran, iran m. lak m.sc. student in biomedical engineering (bioelectric), science and research campus, islamic azad university, member of young researchers club, tehran, iran m. janahmadi professor, physiology and neuroscience research center, shahid beheshti medical sciences university, tehran, iran

introduction:  the  use  of  mobile  communication  systems  has  dramatically  increased  over  the  past  decade. although many studies have been performed to determine the effect of radio frequency (rf) but  less attention has been paid to the possible biological impact of exposure to extremely low frequency  (elf) components.   the objective of this study is two folds. one is to design the ...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2013
ahmed m. abdel rahman isam o. fadol

the objective of this study was to assess the influence of some socioeconomic characteristics on purposes for which mobile phone was used by small scale farmers in the gezira state, sudan. the total number of small- scale farmers in the state for 2013-2014 growing season was estimated to be 5000. ten percent of the population was used using the simple random sampling technique. the collected da...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
رویا کرمی استادیار دانشگاه پیام نور زنجان

change the interests of young people toward communicating in cyberspace, using mobile phone and sms communications is a threat in the some critics’ point of view, which can be an opportunity to learn anytime, anywhere. mobile learning is an approach to targeted nourishing of curious minds of technology generation in the wireless communication world. thus, this study toward establishing the grou...

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