The IARC Working Group classified "Radiofrequency Electromagnetic Fields" (RFEMF) as possibly carcinogenic to humans (Group 2B). The information that formed the main basis for this evaluation was found in epidemiological studies on cell-phone use, where a slightly increased risk for glioma (a malignant form of brain cancer) and acoustic neuroma (a non-cancerous type) was reported among heavy us...

BACKGROUND On 7th August 1998, a terrorist bomb destroyed the American Embassy in Nairobi, killing and injuring thousands of people. OBJECTIVES To describe the media component of the (larger) mental health response, and evaluate the impact of the intervention. DESIGN Descriptive cross sectional study. SETTING Nairobi, three months after the explosion. SUBJECTS Residents of Nairobi and o...

The strategy for the development of television and radio broadcasting in Russian Federation until 2025 specifically states need to ensure reliability uninterrupted broadcasting. quality DVB-T2 is estimated by data transmission rate bit error BER (Bit Error Ratio) stability margin «at last mile» retransmitters’ broadcast zones. distributed client-server system monitoring RF, proposed article, us...

With the success of XM and Sirius Satellite Radio in the US, and the increasing interest in mobile TV services in the wake of successful trials by European mobile operators, new systems are now being proposed for satellite radio and multimedia broadcasting in Europe. Worldspace has now received authorization from the FCC for launch of their new Afristar 2 GEO satellite to provide services in We...

the cinema is a phenomenon that has opened its way to the societies over the past 100 years, especially in the current era that the pleasure of visual culture has been overcome on benefit, introduced itself to mankind in different forms and formats. therefore, the film industry and producing tv and cinema programs are largely spread by taking advantage of technological growth. because this phen...

the aim of this study was to survey four fundamental effective factors in sport sponsorship decision making. for this purpose, viewpoints of 30 experts and active individuals in sport sponsorship such as managers of sponsor corporations, authorities of sport federations and clubs were analyzed. the method of this research was qualitative and explorative and was performed through interviews. the...

In November/2004, we witnessed the formation of the first worldwide effort to define a novel wireless air interface (i.e., MAC and PHY) standard based on Cognitive Radios (CRs): the IEEE 802.22 Working Group (WG). The IEEE 802.22 WG is chartered with the development of a CR-based Wireless Regional Area Network (WRAN) Physical (PHY) and Medium Access Control (MAC) layers for use by license-exemp...

abstract the overall purpose in this study was to investigate extensional- educational factors that influencing on transgenic plants usage. the research design of the study was a survey utilizing descriptive-correlation technique. the target population consisted of 85 biotechnology experts at research institutes of tehran province which were studied by a census study (n=85). finally 63 experts ...