http://www.sciencedaily.com/news/computers_math/communications/ Communication Technology. Read computer science articles on new technology, internet addiction and more. Read all the current research into computerized communication here. en-us Wed, 25 Nov 2009 10:05:01 EST Wed, 25 Nov 2009 10:05:01 EST 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/computers_math/communications/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2009/11/091122095424.htm A new application for the Android smartphone shows users and software developers how much power their applications are consuming. Tue, 24 Nov 2009 23:00:00 EST http://www.sciencedaily.com/releases/2009/11/091122095424.htm http://www.sciencedaily.com/releases/2009/11/091124181415.htm Technology designed to blast aliens in computer games is part of a new GPU (graphics processing units) computer cluster that will process research data thousands of times faster and more efficiently than a desktop PC. Tue, 24 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091124181415.htm http://www.sciencedaily.com/releases/2009/11/091124180617.htm Researchers have developed a unique new computer model called the Virtual StreamLab, designed to help restore real streams to a healthier state. The Virtual StreamLab demonstrates the physics of natural water flows at an unprecedented level of detail and realism. Tue, 24 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091124180617.htm http://www.sciencedaily.com/releases/2009/11/091123094122.htm Scientists have used an innovative computer program to produce a more detailed global map of Mars' valley networks. It shows the networks are much more extensive than had been previously depicted. Regions that are most densely dissected by the valley networks roughly form a belt around the planet, consistent with a past climate scenario that included precipitation and the presence of an ocean covering a large portion of Mars' northern hemisphere. Mon, 23 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091123094122.htm http://www.sciencedaily.com/releases/2009/11/091117161131.htm With a bit of leverage, researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers. That's enough to completely switch the optical properties of the structure from opaque to transparent. Mon, 23 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091117161131.htm http://www.sciencedaily.com/releases/2009/11/091120000140.htm Researchers in Norway have discovered a mechanism that the brain uses to filter out distracting thoughts to focus on a single bit of information. Mon, 23 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091120000140.htm http://www.sciencedaily.com/releases/2009/11/091120095005.htm Physicists have made an important advance in electrically controlling quantum states of electrons, a step that could help in the development of quantum computing. Mon, 23 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091120095005.htm http://www.sciencedaily.com/releases/2009/11/091119193809.htm A mathematical model has explained some of the remarkable features of mosquito hearing. In particular, the male can hear the faintest beats of the female's wings and yet is not deafened by loud noises. Sat, 21 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091119193809.htm http://www.sciencedaily.com/releases/2009/11/091119101046.htm Like the paperless office, the smart home has been a long time coming, but a new article suggests that radio tags coupled with mobile communications devices could soon provide seamless multimedia services to the home. Thu, 19 Nov 2009 23:00:00 EST http://www.sciencedaily.com/releases/2009/11/091119101046.htm http://www.sciencedaily.com/releases/2009/11/091118160627.htm Engineering researchers have developed a unique and robust method to prevent cloning of passive radio frequency identification tags. The technology, based on one or more unique physical attributes of individual tags rather than information stored on them, will prevent the production of counterfeit tags and thus greatly enhance both security and privacy for government agencies, businesses and consumers. Thu, 19 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091118160627.htm http://www.sciencedaily.com/releases/2009/11/091120000635.htm Current methods of searching audiovisual content can be a hit-and-miss affair. Manually tagging online media content is time consuming, and costly. But new ‘query by example’ methods, built on peer-to-peer (P2P) architectures, could provide the way forward for such data-intensive content searches, say European researchers. Thu, 19 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091120000635.htm http://www.sciencedaily.com/releases/2009/11/091119121306.htm A new statistical technique allows scientists to scan a genome for specific gene-regulatory regions without requiring prior knowledge of the relevant transcription factors. The technique has been experimentally validated in both the mouse genome and the fruit fly genome. Thu, 19 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091119121306.htm http://www.sciencedaily.com/releases/2009/11/091118133535.htm IBM has announced significant progress toward creating a computer system that simulates and emulates the brain's abilities for sensation, perception, action, interaction and cognition, while rivaling the brain's low power and energy consumption and compact size. Scientists have performed the first near real-time cortical simulation of the brain that exceeds the scale of a cat cortex and contains 1 billion spiking neurons and 10 trillion individual learning synapses. Wed, 18 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091118133535.htm http://www.sciencedaily.com/releases/2009/11/091117094935.htm The sensor of some optical mice can be used to easily and cheaply detect counterfeit euros, according to a study published by researchers in Spain. Almost 80 percent of counterfeit coins discovered in Europe in 2008 were two-euro coins. Tue, 17 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091117094935.htm http://www.sciencedaily.com/releases/2009/11/091116143619.htm It's the year 2060, and 75 percent of drivers in the Greater Los Angeles area have hydrogen fuel cell vehicles that emit only water vapor. Look into Shane Stephens-Romero's crystal ball -- a computer model called STREET -- and find that air quality has significantly improved. Greenhouse gas emissions are more than 60 percent lower than in 2009, and levels of microscopic soot and ozone are about 15 percent and 10 percent lower, respectively. Tue, 17 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091116143619.htm http://www.sciencedaily.com/releases/2009/11/091116094457.htm East Tennessee is now home to two of the world's three fastest computers, according to new rankings. The Top 500 list of the world's fastest supercomputers places University of Tennessee supercomputer Kraken in third place, where it also holds the title of world's fastest academic supercomputer, while Oak Ridge National Laboratory's Jaguar computer took first place overall. Tue, 17 Nov 2009 02:00:00 EST http://www.sciencedaily.com/releases/2009/11/091116094457.htm http://www.sciencedaily.com/releases/2009/11/091111120759.htm Researchers have created the first integrated semantic search platform that integrates text, video and audio. The system can 'watch' films, 'listen' to audio and 'read' text to find relevant responses to semantic search terms. At last, computers are able to look for meaning in our multimedia searches. Mon, 16 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111120759.htm http://www.sciencedaily.com/releases/2009/11/091116103840.htm An experiment into the use of social media has shown that Twitter, an online blogging service, can act as an exceptional communication tool within academia. Mon, 16 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091116103840.htm http://www.sciencedaily.com/releases/2009/11/091110090858.htm A number of US states now use facial recognition technology when issuing drivers licenses. Similar methods are also used to grant access to buildings and to verify the identities of international travelers. Historically, obtaining accurate results with this type of technology has been a time intensive activity. Now, researchers have developed ways to make the technology more efficient while improving accuracy. Sun, 15 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110090858.htm http://www.sciencedaily.com/releases/2009/11/091111120105.htm Researchers in Egypt have developed a technique to compress DNA sequences of the kind used in medical research so that they take up a lot less space in a computer database but without loss of information. Sun, 15 Nov 2009 11:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111120105.htm http://www.sciencedaily.com/releases/2009/11/091104101543.htm Researchers are working to develop futuristic communications systems that could help protect frontline troops. Building on work completed recently for the UK Ministry of Defence, the project is aimed at investigating the use of arrays of highly specialized antennas that could be worn by combat troops to provide covert short-range person-to-person battleground communications. Fri, 13 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104101543.htm http://www.sciencedaily.com/releases/2009/11/091111115841.htm The explosive growth of video on the internet calls for new ways of sorting and searching audiovisual content. Researchers have developed a groundbreaking solution that is finding commercial applications. Fri, 13 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111115841.htm http://www.sciencedaily.com/releases/2009/11/091111121742.htm A new study suggests that unscrupulous vendors on the online marketplace eBay can easily buy a good reputation and so circumvent recent efforts by the company to prevent feedback fraud. Fri, 13 Nov 2009 02:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111121742.htm http://www.sciencedaily.com/releases/2009/10/091029141249.htm Computer scientists are using Android, the open-source mobile operating system championed by Google, to transform a cell phone into a flexible data-collection tool. Their free suite of tools, named Open Data Kit, is already used by organizations around the world that need inexpensive ways to gather information in areas with little infrastructure. Wed, 11 Nov 2009 02:00:00 EST http://www.sciencedaily.com/releases/2009/10/091029141249.htm http://www.sciencedaily.com/releases/2009/11/091110105355.htm College age students text the most, preferring it to calls or e-mail. However, new research is suggesting that the copious amounts of texting could lead to overuse injuries -- once only reserved for older adults who have spent years in front of a computer. Tue, 10 Nov 2009 23:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110105355.htm http://www.sciencedaily.com/releases/2009/11/091110135413.htm Mathematicians are coupling mathematical models with information about a baby's physiology inside the womb. Combining ultrasound with powerful algorithms based on real-life data, pediatricians get critical data on the development of the fetal circulatory system, so they can determine when the baby is strong enough to survive on its own. Tue, 10 Nov 2009 20:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110135413.htm http://www.sciencedaily.com/releases/2009/10/091029161216.htm Millions of people are spending real money on virtual clothes in online hangouts, digital items in multiplayer games and presents for their friends in social networking sites. This digitalisation of consumption is an inherent consequence of the increasing involvement of communication technology in everyday social activities, says one researcher. Tue, 10 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/10/091029161216.htm http://www.sciencedaily.com/releases/2009/11/091109121203.htm If you forget your password when logging into an e-mail or online shopping website, the site will likely ask you a security question: What is your mother's maiden name? Where were you born? The trouble is that such questions are not very secure. But computer scientists are testing a new tactic that could be both easier and more secure. Mon, 09 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091109121203.htm http://www.sciencedaily.com/releases/2009/10/091029151439.htm Researchers have succeeded in getting hold of the environment of a quantum particle. This allows them to exercise greater control over a single electron, and brings the team of researchers a step closer still to the super-fast quantum computer. Mon, 09 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/10/091029151439.htm http://www.sciencedaily.com/releases/2009/11/091111115839.htm Software packages that interoperate while providing online users with an overview of their colleagues’ work may finally threaten the dominance of email as the world’s premier collaboration tool. Mon, 09 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111115839.htm http://www.sciencedaily.com/releases/2009/11/091111111301.htm A unique microchip with microscopic nail structures enable close communication between the electronics and biological cells. The new chip is a mass-producible, easy-to-use tool in electrophysiology research, for example for fundamental research on the functioning and dysfunctioning of the brain. Each micronail structure serves as a close contact-point for one cell, and contains an electrode that can very accurately record and trigger in real-time the electrical activity of an individual electrogenic cell in a network. Mon, 09 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111111301.htm http://www.sciencedaily.com/releases/2009/11/091106102658.htm Researchers in Spain have designed a system for the mobility of military troops within a battlefield following the mechanisms used by ant colonies to move. The scientists have used settings of Panzer General, a commercial war video game, for the development of this software. Sat, 07 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091106102658.htm http://www.sciencedaily.com/releases/2009/10/091027162009.htm Cyber criminals are using fake messages claiming to be from the Federal Deposit Insurance Corporation to deliver a virus capable of stealing unsuspecting victims' bank passwords and other sensitive personal information, says a computer forensics specialist. Sat, 07 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/10/091027162009.htm http://www.sciencedaily.com/releases/2009/11/091105102729.htm A team of researchers in Spain has developed a protocol to distort the user profile generated by Internet search engines, in such a way that they cannot save the searches undertaken by Internet users and thus preserve their privacy. Fri, 06 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/11/091105102729.htm http://www.sciencedaily.com/releases/2009/11/091104101628.htm The eyes may be the mirror to the soul, but the iris reveals a person's true identity. A new report demonstrates that iris recognition algorithms can maintain their accuracy even with compact images, affirming their potential for large-scale identity management applications. Thu, 05 Nov 2009 11:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104101628.htm http://www.sciencedaily.com/releases/2009/11/091104132708.htm Professor Yosi Shacham-Diamand of Tel Aviv University's Department of Engineering, working with a team of European Union scientists, has successfully wired a state-of-the-art artificial hand to existing nerve endings in the stump of a severed arm. The device, called "SmartHand," resembles -- in function, sensitivity and appearance -- a real hand. Thu, 05 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104132708.htm http://www.sciencedaily.com/releases/2009/11/091104132812.htm Researchers have found that readers were better able to understand, remember and emotionally respond to material found through "searching" compared to content found while "surfing." "If, as these data suggest, the cognitive and emotional impact of online content is greatest when acquired by searching, then Web site sponsors might consider increasing their advertising on pages that tend to be accessed via search engines," said one of the researchers. Thu, 05 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104132812.htm http://www.sciencedaily.com/releases/2009/11/091104101537.htm Three-dimensional computer graphics is moving into museums. Works of art are being digitally archived in 3-D, simplifying research into related artifacts and providing the public with fascinating three-dimensional displays. Thu, 05 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104101537.htm http://www.sciencedaily.com/releases/2009/11/091102112050.htm A telemedicine system based on a modified version of the Bluetooth wireless protocol can transfer patient data, such as medical images from patient to the health-care provider's mobile device for patient assessment almost four times as fast as conventional Bluetooth and without the intermittent connectivity problems. Thu, 05 Nov 2009 02:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102112050.htm http://www.sciencedaily.com/releases/2009/11/091111120803.htm Sharing small snippets of information about your daily life is a key feature of the online social networking revolution. Soon status updates and other social information could be generated automatically. Thu, 05 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111120803.htm http://www.sciencedaily.com/releases/2009/11/091111120724.htm Researchers have developed technology that enables a robot to combine data from both sound and vision to create combined, purposeful perception. In the process, they have taken the field to a new level. Thu, 05 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111120724.htm http://www.sciencedaily.com/releases/2009/11/091103112247.htm When searching for basketball videos online, a long list of Web sites appears, which may contain a picture or a word describing a basketball. But what if the computer could search inside videos for a basketball? Researchers are developing software that would enable computers to search inside videos, detect humans and specific objects, and perform other video analysis tasks. Wed, 04 Nov 2009 11:00:00 EST http://www.sciencedaily.com/releases/2009/11/091103112247.htm http://www.sciencedaily.com/releases/2009/11/091103102246.htm The spread of malware, or computer viruses, is a growing problem that can lead to crashed computer systems, stolen personal information, and billions of dollars in lost productivity every year. One of the most insidious types of malware is a "rootkit," which can effectively hide the presence of other spyware or viruses from the user. But now researchers have devised a way to block rootkits and prevent them from taking over your computer systems. Tue, 03 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091103102246.htm http://www.sciencedaily.com/releases/2009/11/091102171611.htm Shoppers could see lower prices but less variety to choose from as more manufacturers sell directly to consumers through the Internet, according to new research. Mon, 02 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091102171611.htm http://www.sciencedaily.com/releases/2009/10/091031003511.htm What are the odds that your digital identity will be stolen by cyber criminals? Why do bank payment systems crash when everybody is trying to pay for Christmas gifts by credit card? Cyber criminals are everywhere. Now, help is just a click away. Researchers have developed a new, ultrafast digital signature scheme that is 17,000 times faster than current systems for verification, and 10,000 times faster in providing a digital signature. Sun, 01 Nov 2009 11:00:00 EST http://www.sciencedaily.com/releases/2009/10/091031003511.htm http://www.sciencedaily.com/releases/2009/10/091012100514.htm New tools and systems developed by European researchers are helping astronomers access data centres from anywhere in the world. From charting new stars to finding new meaning in old stellar objects, the result will be virtual observatories with very real impact. Sun, 01 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/10/091012100514.htm http://www.sciencedaily.com/releases/2009/10/091027185140.htm Electrical engineers recently pitted Genius -- the music recommendation system in Apple's iTunes -- against two experimental music recommender systems. Genius appears to capture acoustic similarities among songs within the same playlist, the researchers found. The electrical engineers also discovered that the music recommender they built from scratch can generate song playlists that human subjects thought were as good as those that Genius generates. Fri, 30 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091027185140.htm http://www.sciencedaily.com/releases/2009/10/091031002504.htm Social media sites, armed with the power of instant advocacy, have ushered in the era of "Community Relations 2.0," according to researchers. It's time for American businesses to evaluate the risks and rewards online communities like Facebook and Twitter present and devote social media teams to this rapidly changing landscape of community engagement. Fri, 30 Oct 2009 00:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091031002504.htm