800x600 background: nowadays, mothers are continuously exposed to different sources of electromagnetic fields before and even during pregnancy.   it has recently been shown that exposure to mobile phone radiation during pregnancy may lead to adverse effects on the brain development in offspring and cause hyperactivity. researchers have shown that behavioral problems in laboratory animals which ...

Radio Frequency (RF) engineers are faced many times with the following two questions: “What are the effects of radio waves on human health?” and, more specifically, “What health risks are associated with the use of cell phones, mobile radios, microwave radios, microwave ovens, broadcast radio and television transmitters, power lines and X-rays?” In recent times, many people have expressed an in...

Introduction: Mobile phones and computers are a reservoir of growth and transmission of microorganisms. This study aimed to evaluate the microbial contamination of computers and mobile phones used by students of an academic dental school, compared to the students of a non-medical school. Methods: Sampling was performed on 44 computers and 45 mobile phones in a dental school (test) and a non-med...

CTrack is an energy-efficient system for trajectory mapping using raw position tracks obtained largely from cellular base station fingerprints. Trajectory mapping, which involves taking a sequence of raw position samples and producing the most likely path followed by the user, is an important component in many locationbased services including crowd-sourced traffic monitoring, navigation and rou...

With the exponential growth of hand-held devices like smart phones and tablet computers, a deep investigation of TCP performance in cellular networks is becoming increasingly important. In this paper, we conducted extensive measurements over the 3G/4G networks of four major U.S. carriers as well as the largest carrier in Korea and discovered a significant problem: the bufferbloat in cellular ne...

Today’s mobile devices such as smart phones are equipped with multiple wireless access technologies, so multi-radio operation is becoming the norm. These devices frequently face vertical handover scenarios such as exiting Wi-Fi hotspot towards cellular network coverage. Unfortunately, the vertical handover execution is still done in a very primitive way even with middleware support, and the rea...