نتایج جستجو برای: cellular phones

تعداد نتایج: 451599  

Journal: :American journal of epidemiology 2014
Daniel A Gundersen Randal S ZuWallack James Dayton Sandra E Echeverría Cristine D Delnevo

The majority of adults aged 18-34 years have only cellular phones, making random-digit dialing of landline telephones an obsolete methodology for surveillance of this population. However, 95% of this group has cellular phones. This article reports on the 2011 National Young Adult Health Survey (NYAHS), a pilot study conducted in the 50 US states and Washington, DC, that used random-digit dialin...

2003
Eiichi Takahashi Masahiro Murakawa Yuji Kasai Tetsuya Higuchi

Two cases of power dissipation reduction with postfabrication adjustment using genetic algorithms are introduced in this paper. The first is a 1GHz ALU implementation, where power consumption has been reduced by 54% through clock-timing adjustment. The second case is the IF (Intermediate Frequency) filter analog LSI used in cellular phones, where the reduction in power dissipation is realized b...

Journal: :International journal of andrology 2007
L Hardell M Carlberg C-G Ohlson H Westberg M Eriksson K Hansson Mild

A case-control study on testicular cancer included use of cellular and cordless telephones. The results were based on answers from 542 (92%) cases with seminoma, 346 (89%) with non-seminoma, and 870 (89%) controls. Regarding seminoma the use of analog cellular phones gave odds ratio (OR) = 1.2, 95% confidence interval (CI) = 0.9-1.6, digital phones OR = 1.3, CI = 0.9-1.8, and cordless phones OR...

2001
George Lawton

A s mobile technology matures, handheld-device vendors are looking for ways to make their products more functional, and Java is one approach they are turning to. This is particularly the case with smart cellular phones, which are using Java to help add new capabilities. In smart phones, Java functions as a layer between the operating system and the hardware, or runs parallel to the OS within a ...

Journal: :Waste management 2010
Seong-Rin Lim Julie M Schoenung

Cellular phones have high environmental impact potentials because of their heavy metal content and current consumer attitudes toward purchasing new phones with higher functionality and neglecting to return waste phones into proper take-back systems. This study evaluates human health and ecological toxicity potentials from waste cellular phones; highlights consumer, corporate, and government res...

Journal: :international journal of fertility and sterility 0
adel zalata ayman z el-samanoudy dalia shaalan youssef el-baiomy taymour mostafa

background: use of cellular phones emitting radiofrequency electromagnetic field (rf-emf) has been increased exponentially and become a part of everyday life. this study aimed to investigate the effects of in vitro rf-emf exposure emitted from cellular phones on sperm motility index, sperm dna fragmentation and seminal clusterin (clu) gene expression. materials and methods: in this prospective ...

Journal: :International archives of occupational and environmental health 2005
Lennart Hardell Mikael Eriksson Michael Carlberg Christer Sundström Kjell Hansson Mild

OBJECTIVES To evaluate the use of cellular and cordless telephones as the risk factor for non-Hodgkin's lymphoma (NHL). METHODS Male and female subjects aged 18-74 years living in Sweden were included during a period from 1 December 1999 to 30 April 2002. Controls were selected from the national population registry. Exposure to different agents was assessed by questionnaire. RESULTS In tota...

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