Surgery

3-D virtual reality models help yield better surgical outcomes

A UCLA-led study has found that using three-dimensional virtual reality models to prepare for kidney tumor surgeries resulted in substantial improvements, including shorter operating times, less blood loss during surgery ...

Diseases, Conditions, Syndromes

A tech intervention to tame tuberculosis

For tuberculosis patients, complying with a full course of treatment can be daunting and difficult. But a new experiment conducted by MIT researchers in Kenya, in collaboration with the digital health company Keheala, shows ...

Diseases, Conditions, Syndromes

Self-monitoring solution in mobile app can help uncontrolled asthma

A study by researchers at Karolinska Institutet shows that a treatment-adjustment algorithm based on lung function and symptoms in a mobile phone is useful for managing uncontrolled asthma. For fuss-free measuring of lung ...

Oncology & Cancer

Mobile app gives cancer patients better quality of life

Although comprising only one eighth of the global population, Europe has a quarter of the total number of cancer cases worldwide. Each year, there are around 3.7 million new cancer cases on the continent, and this figure ...

Overweight & Obesity

Five or more hours of smartphone usage per day may increase obesity

As smartphones continue to be an inherent part of life and grow as a primary source of entertainment—particularly among young people—it leads to a decrease in physical activity. In a recent study presented at the ACC ...

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Mobile phone

A mobile phone or mobile (also called cellphone and handphone, as well as cell phone, wireless phone, cellular phone, cell, cellular telephone, mobile telephone or cell telephone) is a long-range, electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. In addition to the standard voice function of a mobile phone, telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, Bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video, MP3 player, radio and GPS. Most current mobile phones connect to a cellular network consisting of switching points and base stations (cell sites) owned by a mobile network operator (the exception is satellite phones, which are mobile but not cellular).

As opposed to a radio telephone, a mobile phone offers full duplex communication, automatised calling to and paging from a public switched telephone network (PSTN), handoff (am. English) or handover (European term) during a phone call when the user moves from one cell (base station coverage area) to another. A mobile phone offers wide area service, and should not be confused with a cordless telephone, which also is a wireless phone, but only offer telephony service within a limited range, e.g. within a home or an office, through a fixed line and a base station owned by the subscriber.

The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.1 billion by the end of 2008. Mobile phones have gained increased importance in the sector of Information and communication technologies for development in the 2000s and have effectively started to reach the bottom of the economic pyramid.

This text uses material from Wikipedia, licensed under CC BY-SA