نتایج جستجو برای: cell phone use

تعداد نتایج: 3324612  

Journal: :International Journal of Epidemiology 2012

Journal: :Cyberpsychology & behavior : the impact of the Internet, multimedia and virtual reality on behavior and society 2009
Mercedes Sánchez-Martínez Angel Otero

The purpose of this research is to measure cell phone use among high school adolescents and the factors associated with intensive cell phone use (depressive symptoms, social isolation, drug and alcohol use, school failure, and cell phone dependence). We conducted a cross-sectional survey study of 1,328 adolescents aged 13 to 20 years in nine secondary schools of the Community of Madrid between ...

F Yousefi M Eghlidospour, SAR Mortazavi SMJ 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: :تحقیقات نظام سلامت 0
مریم عمیدی مظاهری استادیار، آموزش بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مجتبی کرباسی مربی، زبان انگلیسی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران محمدشهرام محتشمی کارشناس مسؤول بهداشت محیط، مرکز بهداشت شماره 1، اصفهان، ایران

background: mobile phone has become extremely popular and widely used all over the world. now a day, consumers around the world can purchase a single product that utility as a mobile phone, camera, camcorder, calculator, game console, text-messaging device, mp3 player, alarm clock, web browser and email device. the purpose of the present study was to explore self-reported use of various feature...

2017
Toni M. Rudisill Motao Zhu

BACKGROUND Cell phone use behaviors are known to vary across demographic sub-groups and geographic locations. This study examined whether universal hand-held calling while driving bans were associated with lower road-side observed hand-held cell phone conversations across drivers of different ages (16-24, 25-59, ≥60 years), sexes, races (White, African American, or other), ruralities (suburban,...

Introduction: Mobile learning is a new way of modern teaching method and a subset of e-learning that refers to a change in thinking about the design and planning of learning goals and environments. The purpose of this study was to investigate the attitude of students of the Medical Sciences School toward the mobile phone in educational activities and its usage. Methods: 150 students of Mashhad...

2016
Lige Leng

The aim of the present meta-analysis was to identify whether there was a relationship between mobile phone use and risk of brain tumor. A comprehensive search strategy was developed, and studies were eliminated in a stepwise manner, based on the inclusion criteria. The current meta-analysis collected data from the 24 eligible studies to investigate the relationship between mobile phone use and ...

Journal: :Traffic injury prevention 2008
Jonathon M Vivoda David W Eby Renée M St Louis Lidia P Kostyniuk

OBJECTIVE Use of a cellular phone has been shown to negatively affect one's attention to the driving task, leading to an increase in crash risk. At any given daylight hour, about 6% of US drivers are actively talking on a hand-held cell phone. However, previous surveys have focused only on cell phone use during the day. Driving at night has been shown to be a riskier activity than driving durin...

Journal: :Journal of epidemiology and community health 2013
Mònica Guxens Manon van Eijsden Roel Vermeulen Eva Loomans Tanja G M Vrijkotte Hans Komhout Rob T van Strien Anke Huss

BACKGROUND A previous study found an association between maternal cell phone use during pregnancy and maternal-reported child behaviour problems at age 7. Together with cell phones, cordless phones represent the main exposure source of radiofrequency-electromagnetic fields to the head. Therefore, we assessed the association between maternal cell phone and cordless phone use during pregnancy and...

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