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People using their mobile phones individually. Problematic smartphone use is psychological or behavioral dependence on cell phones. It is closely related to other forms of digital media overuse such as social media addiction or internet addiction disorder . Commonly known as " smartphone addiction ", the term "problematic smartphone use" was ...
A mobile phone or cell phone [a] is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone ). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which ...
In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA.
In March 2023, Accident Analysis & Prevention published a systematic review of 47 samples across 45 studies investigating associations between problematic mobile phone use and road safety outcomes (including 32 samples of drivers, 9 samples of pedestrians, 5 samples with road use type unspecified, and 1 sample of motorcyclists and bicyclists) that found that problematic mobile phone use was ...
A phone cage used for keeping students' phones away from them during school hours. The use of mobile phones in schools has become a controversial topic debated by students, parents, teachers and authorities. People who support the use of mobile phones believe that these phones are useful for safety, allowing children to communicate with their ...
Since at least the 1990s, scientists have researched whether the now-ubiquitous radiation associated with mobile phone antennas or cell phone towers is affecting human health. [1] Mobile phone networks use various bands of RF radiation, some of which overlap with the microwave range. Other digital wireless systems, such as data communication ...
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