Physical layer security is an emerging security area that explores possibilities of achieving perfect secrecy data transmission between the intended network nodes, while possible malicious nodes that eavesdrop the communication obtain zero information. The so-called secrecy capacity can be improved using friendly jammers that introduce extra interference to the eavesdroppers. Here, we investiga...

background: stress among diabetic patients is much more as compared to normal individuals. a delayed recognition of stress undoubtedly worsens the prognosis for survival for many diabetic patients. hence, this study was planned to develop an intervention model for the reduction of stress among diabetic patients and to evaluate the developed intervention model in the proposed group. methods: thi...

the effects of mobile phone exposure on humans, due to its potential health hazards, have become the focus of interest since many years ago. the effect of global system for mobile communications (gsm 900 mhz) on growth and proliferation rate of mesenchymal stem cells was assessed at the different distances and intensities of radiation. a subscriber identity module (sim) card was inserted to thi...

Background: People who use home blood glucose monitors may use their mobile phones in the close vicinity of medical devices. This study is aimed at investigating the effect of the signal strength of 900 MHz GSM mobile phones on the accuracy of home blood glucose monitors.Methods: Sixty non-diabetic volunteer individuals aged 21 - 28 years participated in this study. Blood samples were analyzed ...

nowadays mobile phone is very popular, causing concern about the effect it has on people's health. parotid salivary glands are in close contact to cell phone while talking with the phone and the possibility of being affected by them. limited studies have evaluated the effect of cell phone use on the secretions of these glands; so this study was designed to investigate the effects of duration of...

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...

Background: Substantial evidence indicates that exposure to electromagneticfields (EMF) above certain levels can affect human health through triggering somebiological responses. According to WHO, short-term exposure to EMF at the levelspresent in the home/environment do not cause any apparent detrimental effects inhealthy individuals. However, now, there is a debate on whether long-term exposur...

background : substantial evidence indicates that exposure to electromagnetic fields (emf) above certain levels can affect human health through triggering some biological responses. according to who, short-term exposure to emf at the levels present in the home/environment do not cause any apparent detrimental effects in healthy individuals. however, now, there is a debate on whether long-term ex...

Background: A lot of investigations exist on the biological effects of radiofrequency and microwave radiation however only a few studies have considered non-carcinogenic exposure to radiations specifically from mobile phones. Objectives: To introduce some subjective neurological symptoms in mobile phone users. Materials and Methods: In this cross-sectional descriptive study conducted from March...