نتایج جستجو برای: cell phone
تعداد نتایج: 1728982 فیلتر نتایج به سال:
The majority of research on cell phone use has focused on adolescent and young adult users with less attention on cell phone use by those older than 25 years of age. In this study, adult participants from 18 to 68 years completed a survey about their own use of cell phones and the contexts in which they considered cell phone use appropriate. There were age and gender differences in beliefs abou...
BACKGROUND Cell phone use during pregnancy is a public health concern. We investigated the association between maternal cell phone use in pregnancy and child's language, communication and motor skills at 3 and 5 years. METHODS This prospective study includes 45,389 mother-child pairs, participants of the MoBa, recruited at mid-pregnancy from 1999 to 2008. Maternal frequency of cell phone use ...
A majority of states now restrict teenagers from using a mobile communication device while driving. The effect of these restrictions is largely unknown. In a previous study, we found North Carolina's teenage driver cell phone restriction had little influence on young driver behavior four months after the law took effect (Foss et al., 2009). The goal of the present study was to examine the longe...
virtual learning is a new idea that has gotten a new form with the emergence of new technologies such as the wireless networks. the mobile phone (cell phone) is a device that is used by most people nowadays. therefore, one can use the mobile phone for virtual learning on a wide scale. one of the popular and at the same time simple and inexpensive services on the mobile phone is the sms (short m...
mobile phone technology means that it has become a very efficient tool. the development of tools and reduce its price, makes it all the segments of the from the old to the young do not go out of the house without their cell phone and the most essential tool with which they have. this has caused most organizations and service agencies also offer mobile services based on their. list of the quran,...
Weak non-ionising radiation, such as that from mobile (cell) phones has biological effects, ranging from changes in brain function to the exacerbation of allergies and the induction and promotion of cancer. There have been many attempts to find the mechanisms and hundreds of scientific papers have been written about the changes they cause in the physiology and biochemistry of a wide range of li...
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