نتایج جستجو برای: cellular phone

تعداد نتایج: 478229  

Journal: :Journal of the Royal Society of Medicine 2001

Adel Zalata Ayman Z El-Samanoudy Dalia Shaalan Taymour Mostafa, Youssef El-Baiomy

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. MaterialsAndMethods In this prospective stud...

Journal: :Int. J. Hum.-Comput. Stud. 2004
Avi Parush Nirit Gavish

One can browse the web with a variety of devices, including hand-held devices such as the cellular phone. The small screen of those devices poses some serious usability issues, one of which is the appropriate hierarchy depth of the web site. In this study, we empirically examined whether a broad navigation structure, which was found to be superior in regular screen-size platforms, also has an a...

Journal: :International journal of oral and maxillofacial surgery 2011
Y Duan H Z Zhang R F Bu

The authors investigated the association between cellular phone use and epithelial parotid gland malignancy. The subjects were 136 cases who were treated for this condition at the authors' hospital from January 1993 to March 2010, and 2051 controls who did not have salivary gland tumours and were admitted to the oral and maxillofacial surgery department during the same period. Logistic analysis...

Journal: :Journal of the American Academy of Audiology 2009
Carol L Mackersie Yingyong Qi Arthur Boothroyd Nicole Conrad

PURPOSE To compare multichannel amplification within a cellular phone system to a standard cellular phone response. RESEARCH DESIGN Three cellular phone speech-encoding strategies were evaluated: a narrow-band (3.5 kHz upper cutoff) enhanced variable-rate coder (EVRC), a narrow-band selectable mode vocoder (SMV), and a wide-band SMV (7.5 kHz cutoff). Because the SMV encoding strategies are no...

2012
Mamoru Tochigi Atsushi Nishida Shinji Shimodera Norihito Oshima Ken Inoue Yuji Okazaki Tsukasa Sasaki

PURPOSE A number of studies have tried to identify risk factors for being involved in bullying in order to help developing preventive measures; however, to our knowledge, no study has investigated the effect of nocturnal lifestyle behavior such as sleep pattern or cellular phone usage. In the present study, we aimed to investigate the relationship between school bullying and sleep pattern or no...

2014
Gurjinder Singh Jaswinder Singh

Present paper discusses the working methodologies used for drop test. Engineers widely used physical testing method to investigate the behaviour of cellular phone during drop test. It is very costly, time consuming and complex. Finite element analysis provides numerical models without spent so much money on physical testing methods. Drop test simulation is one of the important tool uses for the...

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 ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید