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Jeff Ratliff

Google Voice - 0 views

www.google.com/...about.html

google voice cellphone phone

shared by Jeff Ratliff on 29 Aug 09 - Cached
  • Jeff Ratliff on 29 Aug 09
     
    As international students, I thought you might be interested in this this new service from Google. It's not wdely available yet but will be soon.
shazad rouf

Market slumps for $3,000 luxury cell phones - CNN.com - 0 views

edition.cnn.com/...index.html

IMPACT business SOCIAL IT SYSTEMS comm sys SEP3-BM45 globalization ITGS

shared by shazad rouf on 09 Sep 09 - Cached
  • Got a few grand to spare for a $3,000 phone? Yeah, we didn't think so. Nobody does -- and that's a problem for the makers of luxury phones, such as Motorola, Bang & Olufson, LG and Vertu.
  • Motorola has already gotten the memo. Earlier this week, the company reportedly canceled the Ivory E18, a device tentatively priced around $3,000. The phone had met with lack of interest from telecom carriers. Motorola declined to comment.
  • But Nuovo isn't convinced. "Take watches and cars," he says. "They all run the same but everyone has a unique way of delivering them stylistically. We can do the same with phones."
Eunice Vincent

Cellular Telephone Use and Cancer Risk - National Cancer Institute - 2 views

www.cancer.gov/...cellphones

portfolio2 CriterionB

shared by Eunice Vincent on 13 Feb 10 - Cached
  • Cellular telephones emit radiofrequency (RF) energy (radio waves), which is a form of radiation that is under investigation for its effects on the human body (1).
  • RF energy is a form of electromagnetic radiation.
  • Electromagnetic radiation can be divided into two types: Ionizing (high-frequency) and non-ionizing (low-frequency) (2). RF energy is a form of non-ionizing electromagnetic radiation. Ionizing radiation, such as that produced by x-ray machines, can pose a cancer risk at high levels of exposure. However, it is not known whether the non-ionizing radiation emitted by cellular telephones is associated with cancer risk (2).
  • ...2 more annotations...
  • A cellular telephone's main source of RF energy is produced through its antenna. The antenna of a hand-held cellular telephone is in the handset, which is typically held against the side of the head when the telephone is in use. The closer the antenna is to the head, the greater a person's expected exposure to RF energy. The amount of RF energy absorbed by a person decreases significantly with increasing distance between the antenna and the user. The intensity of RF energy emitted by a cellular telephone depends on the level of the signal sent to or from the nearest base station (1).
  • When a call is placed from a cellular telephone, a signal is sent from the antenna of the phone to the nearest base station antenna. The base station routes the call through a switching center, where the call can be transferred to another cellular telephone, another base station, or the local land-line telephone system. The farther a cellular telephone is from the base station antenna, the higher the power level needed to maintain the connection. This distance determines, in part, the amount of RF energy exposure to the user.
  • Eunice Vincent on 13 Feb 10
     
    This fact sheet outlines the available evidence regarding use of cellular/mobile telephones and cancer risk. National Cancer Institute Fact Sheet 3.72
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