نتایج جستجو برای: cellular phones

تعداد نتایج: 451599  

Journal: :The European Physical Journal Applied Physics 2011

2005
Eriko Tamaru Kimitake Hasuike Mikio Tozaki

The development and spread of cellular phones have been remarkable in recent years, and these phones are becoming an integral part of the social infrastructure. Owing to mobile technology, especially cellular phone technology, the way of working that entails being unconstrained by time and space has flourished. Over a period of five years, we have investigated various fields of work that involv...

Journal: :American journal of epidemiology 2014
Daniel A Gundersen Kurt R Peters Ashley Conner James Dayton Cristine D Delnevo

During the 2000s, rapid adoption of cellular phones and foregoing of landline telephones (i.e., wireless substitution) were observed (1–3). This affected behavioral surveillance by creating a staggering decrease in coverage for surveys that relied on random-digit dialing (RDD) sampling, resulting in biased health estimates (1–5). During this time, innovative sampling approaches that integrated ...

2015
PRADIP K. DATTA

The use of microwave is increasing day by day all over the world. Microwaves are used in mobile phones, microwave ovens, etc. Mobile or cellular phones are now an integral part of modern telecommunications. In many countries, over half the population use mobile or cellular phones and the market is growing rapidly. Researches are going on in various countries on the possible health effects of mi...

2004
Heikki Hyötyniemi Juha Hemánus Vuokko Lantz

Today’s cellular phones are still based on the age-old views of what a telephone can do, that is transmit speech. However, in human interaction, communication is not based just on the actual words but also on the way how the words are spoken. How to better take this into account in the design of future phones? How to make the phones less technical, more personal? In this paper, we try to answer...

2013

The environment is exposed to electromagnetic radiations as a result of widespread use of wireless communication. This yields a massive increase in electromagnetic pollution. There is a concern of possible adverse effects of cellular phone radiation as a result of the enormous increase in the use of these phones throughout the world. The potential risks of electromagnetic field (EMF) emitted by...

2012
Ahad Ashrafi Asgarabad Ahmad Naghibzadeh Tahami Narges Khanjani

he use of hand-held mobile phones/cellular phones while driving is a known risk factor for road traffic accidents.1 In Iran, the use of mobile phones has increased dramatically in recent years. However, little research has been done to determine the prevalence of mobile phone use while driving in Iran. We conducted an observational, cross-sectional study to document patterns of mobile phone use...

Journal: :International Journal of Emerging Technologies in Learning (iJET) 2008

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