نتایج جستجو برای: cell phones

تعداد نتایج: 1695289  

Ghanbari M, Khavanin A Khazaei M, Mortazavi SB

Background: There is a great concern for the possible adverse effects of cell phones and noise waves and it looks these wave effects on the individuals’ health. Thus, the present study was conducted to examine the effect of cell phone waves, severity noise, and simultaneous effect of cell phone waves and severity noise on sperm motility and sexual hormones in adult male rats. Materials and Meth...

Journal: :international journal of information, security and systems management 2015
seyed ali siadat mohammad mehrali moghaddam

e-banking (electronic banking) is the modified business banking toward e-business (electronic business) banking that actually uses the electronic communication channels such as internet, phones, cell phones and the like. by using this method, the demands of customers such as time independent and high flexible actions are satisfied. in this process, marketing is so important because guiding cust...

2007

Because power requirements for hand-held applications vary widely with product use, no single "best" power source exists for these applications. A device used intermittently is more concerned with no-load quiescent current than with full-load efficiency, and so may operate satisfactorily with alkaline batteries. Cell phones, on the other hand, must contend with high peak loads and frequent use....

Journal: :Reproductive biomedicine online 2007
Fnu Deepinder Kartikeya Makker Ashok Agarwal

There has been a tremendous increase in the use of mobile phones in the past decade and concerns are growing about the possible hazardous effects of radio-frequency electromagnetic waves (EMW) emitted by these devices on human health. Preliminary studies, though with limitations in study design, suggest a possible link between cell phone use and infertility. A recent study found that use of cel...

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...

2012

Studies of driving indicate that the conversational aspects of using cell phones generate high risks from divided attention. Prior surveys document high rates at which students carry phones to and use them during class. Some experiments have demonstrated that cell phones distract students from leaming. The present studies combined survey and experimental methods to determine student expectation...

Journal: :Electromagnetic biology and medicine 2012
Saadet D Celikozlu M Sabri Ozyurt Ali Cimbiz Melda Y Yardimoglu M Kasim Cayci Yusuf Ozay

The aim of this study is to determine the effects of magnetic field via cell phones on some blood parameters and neurons in the brain of rats. Animals have been classified into three groups: control, Magnetic Field (MF), and F2 groups. Throughout this study, cell phones were placed on the wall of the cages. Rats were exposed to the effects of cell phones during prenatal and postnatal periods un...

2008
Kap Luk Chan Xing Xie Minoru Etoh Wang-Chien Lee Flora S. Tsai Flora Tsai

This is a survey how cell-phones are interacting with a real world with I/O devices in information retrieval. Many cell-phones are now being equipped with many I/O devices including GPS, microphones, CCD/CMOS cameras, and motion-sensors. Thus content delivery, interaction with contents, and e-commerce are going to be associated with real environments which will bring us context-aware(real-world...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده منابع طبیعی 1393

تحقیقات مختلف اثبات نموده اند که رشد و محتوای بیوشیمیایی روتیفرها می تواند تحت تاثیر نوع غذا و غلظت مواد غذایی تغییر نماید. ریز جلبک ها به عنوان یکی از منابع غذایی مهم برای کشت روتیفرها به ویژه از لحاظ شاخص های نظیر رشد، بقا، میزان پروتئین، چربی و اسیدهای چرب، ضروری می باشند. لذا تحقیق حاضر جهت مقایسه جلبک خشک (کلرلای پودری) و جلبک های تازه (ایزوکرایسیس گالبانا و نانوکلروپسیس آکولاتا) بر رشد، ت...

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