نتایج جستجو برای: cellular phones
تعداد نتایج: 451599 فیلتر نتایج به سال:
Security is a major concern in mobile commerce where information is send over the air. Authentication is possibly the most important property since achieving privacy and integrity may have no sense without the guaranty of the receiver identity. Cryptographic strong authentication protocols are known but the hard problem is to protect secret information, like shared or private keys, used in thes...
Epidemiologists at the University of Leeds in the United Kingdom will study victims of brain tumors over the next 3 years to determine if the use of mobile phones has contributed to the victims cancers. At the same time, the researchers will study the use of mobile phones by an equal number of people without cancer. Epidemiologist Tricia McKinney, PhD, who will lead the study said, “The causes ...
Developing the ability to comprehensively study infections in small populations enables us to improve epidemic models and better advise individuals about potential risks to their health. We currently have a limited understanding of how infections spread within a small population because it has been difficult to closely track an infection within a complete community. The paper presents data clos...
”One seg” or one-segment digital terrestrial broadcasting service was launched in Japan in 2006. One current use of one-segment broadcasting is providing digital TV programs to mobile phones, portable devices, car navigation systems, and so on. Navigation systems generally provide drivers with point-of-interest information, traffic information, weather reports and so on through cellular phone n...
Mobile phones and other handheld devices incorporating cellular capabilities, such as Personal Digital Assistants, are ubiquitous. Besides placing calls, these devices allow users to perform other useful tasks, including text messaging and phonebook entry management. When cell phones and cellular devices are involved in a crime or other incident, forensic specialists require tools that allow th...
A mobile phone is a wireless handheld device that allows users to make and receive calls. While the earliest generation of phones could only calls, today’s do lot more, accommodating web browsers, games, cameras, video players navigational systems. used be mainly known as “cell phones” or cellular phones, are more commonly called “smartphones” because all extra voice data services they offer.Ob...
Mobile phones and stethoscopes used in neonatology units could be colonized by potentiel bacteria pathogens. It can be a vector of severe nosocomial infections and multi-drug-resistant pathogens. The aim of this study is to evaluate the microbial contamination of mobile phones and stethoscopes, used by medical and paramedical staff. The study was conducted in neonatal intensive care unit (NICU)...
This study examines patterns of cellular phone adoption and usage in an urban setting. One hundred and seventy-six cellular telephone users were surveyed about their patterns of usage, demographic and socioeconomic characteristics, perceptions about the technology, and their motivations to use cellular services. The results of this study confirm that users' perceptions are significantly associa...
People tend to form social networks within geographical areas. This can be explained by the fact that generally geographical localities correspond to common interests (e.g. students located in a university could be interested to buy or sell textbooks adopted for a specific course, to share notes, or just to meet together to play basketball). Cellular phones and more in general mobile devices ar...
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