http://www.sciencedaily.com/news/computers_math/computer_modeling/ Computer modeling in engineering, weather modeling, climate modeling, medical modeling and work-related computer simulations. Read the latest research using computer models here. en-us Wed, 11 Nov 2009 05:05:01 EST Wed, 11 Nov 2009 05:05:01 EST 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/computers_math/computer_modeling/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2009/11/091110171746.htm Researchers are making progress in developing a new type of transistor that uses a finlike structure instead of the conventional flat design, possibly enabling engineers to create faster and more compact circuits and computer chips. Wed, 11 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110171746.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/2009/11/091110090858.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. Tue, 10 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110090858.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/2009/11/091110090900.htm Researchers have developed, characterized, and modeled a new kind of probe used in atomic force microscopy, which images, measures, and manipulates matter at the nanoscale. Using diamond, researchers made a much more durable probe than the commercially available silicon nitride probes, which are typically used in AFM to gather information from a material, but can wear down after several uses. Mon, 09 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110090900.htm http://www.sciencedaily.com/releases/2009/11/091109142123.htm Researchers are studying blood using computer models that simulate how the fluid and the cells it contains move around. One new study shows how components in blood line up to prepare for healing; another demonstrates the best shape to use for man-made nanoparticles that target cancers -- a surfboard. Mon, 09 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091109142123.htm http://www.sciencedaily.com/releases/2009/11/091104085232.htm Scientists have developed and experimentally tested a technique to predict new target diseases for existing drugs. The researchers developed a computational method that compares how similar the structures of all known drugs are to the naturally occurring binding partners -- known as ligands -- of disease targets within the cell. Sat, 07 Nov 2009 11:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104085232.htm http://www.sciencedaily.com/releases/2009/11/091105121209.htm A computer scientist has new evidence regarding a photograph of accused JFK assassin Lee Harvey Oswald. He digitally analyzed the iconic image of Oswald pictured in a backyard setting holding a rifle in one hand and Marxist newspapers in the other, and he says the photo almost certainly was not altered. Fri, 06 Nov 2009 17:00:00 EST http://www.sciencedaily.com/releases/2009/11/091105121209.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/2009/11/091104101537.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/2009/11/091103112247.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/2009/11/091104140812.htm Physicists have created a quantum gas microscope that can be used to observe single atoms at temperatures so low the particles follow the rules of quantum mechanics, behaving in bizarre ways. The work represents the first time scientists have detected single atoms in a crystalline structure made solely of light, called a Bose Hubbard optical lattice. Wed, 04 Nov 2009 00:00:00 EST http://www.sciencedaily.com/releases/2009/11/091104140812.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/2009/10/091028113948.htm Scientists are using an adapted version of VPIC, a particle-in-cell plasma physics code, to model the nonlinear physics of laser backscatter energy transfer and plasma instabilities in an attempt to reach fusion ignition. Sat, 31 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091028113948.htm http://www.sciencedaily.com/releases/2009/09/090928095447.htm Service-centric software engineering is the latest paradigm in computing, and researchers have developed a platform they believe will launch the concept into the business world. Wed, 28 Oct 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090928095447.htm http://www.sciencedaily.com/releases/2009/10/091027161536.htm In a new study the evolutionary history of more than 10,000 sequences from more than 400 HIV-infected individuals was compared. The idea is to identify common features of the transmitted virus, and attempt to create a vaccine that enables recognition the original transmitted virus before the body's immune response causes the virus to react and mutate. Wed, 28 Oct 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091027161536.htm http://www.sciencedaily.com/releases/2009/10/091027161539.htm Smokers who crushed computer-simulated cigarettes as part of a psychosocial treatment program in a virtual reality environment had significantly reduced nicotine dependence and higher rates of tobacco abstinence than smokers participating in the same program who grasped a computer-simulated ball, according to a new study. Wed, 28 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091027161539.htm http://www.sciencedaily.com/releases/2009/10/091027170850.htm A mathematician who has applied mathematical modeling techniques to elucidate the dynamics of run scoring in baseball has computed the probability of the Yankees and Phillies winning the World Series. He also has computed the most deserving of Major League Baseball's prestigious 2009 Most Valuable Player (MVP) and Cy Young awards. Wed, 28 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091027170850.htm http://www.sciencedaily.com/releases/2009/10/091026152942.htm A new "Roadrunner Universe" model requires a petascale computer because, like the universe, it's mind-bendingly large. The model's basic unit is a particle with a mass of approximately one billion suns (in order to sample galaxies with masses of about a trillion suns), and it includes 64 billion and more of those particles. The model is one of the largest simulations of the distribution of matter in the universe, and aims to look at galaxy-scale mass concentrations above and beyond quantities seen in state-of-the-art sky surveys. Tue, 27 Oct 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091026152942.htm http://www.sciencedaily.com/releases/2009/10/091026125535.htm The world's fastest supercomputer, Roadrunner, at Los Alamos National Laboratory has completed its initial "shakedown" phase doing accelerated petascale computer modeling and simulations of a variety of unclassified, fundamental science projects. Mon, 26 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091026125535.htm http://www.sciencedaily.com/releases/2009/10/091022202710.htm A mathematical model constructed by researchers predicts the risk of cardiovascular disease (heart attacks, stroke) associated with low background levels of radiation. The model shows that the risk would vary almost in proportion with dose. Results are consistent with risk levels reported in previous studies involving nuclear workers. Fri, 23 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091022202710.htm http://www.sciencedaily.com/releases/2009/10/091020192204.htm Japanese researchers have developed a computer program which may be able tell from an emergency call if you are about to die. Research shows that a computer algorithm is able to predict the patient's risk of dying at the time of the emergency call. Thu, 22 Oct 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091020192204.htm http://www.sciencedaily.com/releases/2009/10/091006121115.htm Mathematicians have developed powerful new tools for winnowing out the genes behind some of humanity's most intractable diseases. Mon, 19 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091006121115.htm http://www.sciencedaily.com/releases/2009/10/091014102201.htm If the wife of FBI boss Robert Mueller has warned him not to use internet banking because of the threat of online fraud, then what hope is there for the average Joe? The results of research suggests that more of us are no longer entrusting our finances to virtual accounts. Mon, 19 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091014102201.htm http://www.sciencedaily.com/releases/2009/10/091014102207.htm A team of scientists have demonstrated -- for the first time -- that mathematical models created from data obtained by DNA microarrays, can be used to correctly predict previously unknown cellular mechanisms. This brings biologists a step closer to one day being able to understand and control the inner workings of the cell as readily as NASA engineers plot the trajectories of spacecraft today. Mon, 19 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091014102207.htm http://www.sciencedaily.com/releases/2009/10/091015094327.htm Researchers have developed the first mathematical model in cardiology and emergency medicine to more quickly and reliably diagnose acute heart failure in emergency room patients. Research findings have been shown to help physicians diagnose AHF with greater accuracy. Mon, 19 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091015094327.htm http://www.sciencedaily.com/releases/2009/10/091015191043.htm Conventional imaging systems incorporate a light source for illuminating an object and a separate sensing device for recording the light rays scattered by the object. By using lenses and software, the recorded information can be turned into a proper image. Human vision is an ordinary process: the use of two eyes (and a powerful brain that processes visual information) provides human observers with a sense of depth perception. But how does a video camera attached to a robot "see" in three dimensions? Mon, 19 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091015191043.htm http://www.sciencedaily.com/releases/2009/10/091019122651.htm A new computerized approach to airport operations is being developed that will reduce delays, speed up baggage handling and decrease pollution. Mon, 19 Oct 2009 00:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091019122651.htm http://www.sciencedaily.com/releases/2009/10/091019122639.htm Computer scientists are working on the development of an efficient and intelligent facial expression recognition system. The system is capable of locating the face region using derivative-based filtering and recognizing facial expressions using boosting classifier. The portable device is being developed to help autistic children understand the emotions of surrounding people. Mon, 19 Oct 2009 00:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091019122639.htm http://www.sciencedaily.com/releases/2009/10/091013112526.htm Early action, especially rapid rollout of vaccines, is extremely effective in reducing the attack rate of the H1N1 influenza virus, according to a simulation model of a pandemic outbreak. Sun, 18 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091013112526.htm http://www.sciencedaily.com/releases/2009/10/091014102037.htm Rugby players worldwide could benefit from a new virtual reality training program. "The advantages of this technology are that unlike playing a video game on a normal desktop computer, the rugby player or athlete is totally immersed in a realistic simulated environment," said the lead researcher. Thu, 15 Oct 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091014102037.htm http://www.sciencedaily.com/releases/2009/10/091014144731.htm With the League Championship Series set to begin tomorrow, NJIT Mathematics Professor Bruce Bukiet has, once again, analyzed the probability of each team winning their post-season series. Bukiet updates his calculations daily during the Major League Baseball post-season. Thu, 15 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091014144731.htm http://www.sciencedaily.com/releases/2009/10/091012084210.htm Study finds a statistical model can accurately predict which patients will have poor outcomes after bladder surgery and can determine the need for chemotherapy. Thu, 15 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091012084210.htm http://www.sciencedaily.com/releases/2009/10/091013210329.htm A computer which automatically recognizes sign language enables children who are deaf or hard of hearing to expand their sign language vocabulary more quickly. Wed, 14 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091013210329.htm http://www.sciencedaily.com/releases/2009/08/090803092606.htm The world's smallest computers, made of DNA and other biological molecules, just got more "user friendly." Wed, 14 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090803092606.htm http://www.sciencedaily.com/releases/2009/10/091013110053.htm Two decades ago, studies showed that computer users were violating best practices for setting up hack-proof passwords, and not much has changed since then. What's clear, say researchers , is that until human factors/ergonomics methods are applied to the problem, it isn't likely to go away. Wed, 14 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091013110053.htm http://www.sciencedaily.com/releases/2009/10/091008192739.htm The University of Tennessee's Kraken supercomputer was just upgraded to a peak performance exceeding one petaflop, making it the fastest system in the country managed by an academic institution and placing it among the five fastest systems in the world. Tue, 13 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091008192739.htm http://www.sciencedaily.com/releases/2009/10/091007081353.htm Using computer modeling, researchers have discovered lung cancer "pathways" that could become targets for new drugs. Mon, 12 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091007081353.htm http://www.sciencedaily.com/releases/2009/10/091006202858.htm Challenge a simple pocket calculator at arithmetic and you may be left in the dust. But even the most sophisticated computer cannot match the reasoning of a youngster who looks outside, sees a fresh snowfall, and knows how to bundle up for the frosty outdoors. For artificial intelligence scientists, enabling computers to have such human-level intelligence requires a commonsense knowledge base that can evolve and learn new things. But it's an elusive goal. Sun, 11 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091006202858.htm http://www.sciencedaily.com/releases/2009/10/091009090426.htm A sophisticated computational algorithm, applied to a large set of gene markers, has achieved greater accuracy than conventional methods in assessing individual risk for type 1 diabetes. The researchers suggest that their technique, applied to appropriate complex multigenic diseases, improves the prospects for personalizing medicine to an individual's genetic profile. Sun, 11 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091009090426.htm http://www.sciencedaily.com/releases/2009/09/090910084143.htm Stroke rehabilitation technology which patients can operate in their own homes while playing computer games, is being developed by academics in the UK. Sat, 10 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090910084143.htm http://www.sciencedaily.com/releases/2009/10/091008113339.htm Because it will be difficult to prevent cyber attacks on critical civilian and military computer networks by threatening to punish attackers, the United States must focus its efforts on defending these networks from cyber attack, according to a new analysis by experts. Fri, 09 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091008113339.htm http://www.sciencedaily.com/releases/2009/10/091008143005.htm Mathematicians and life scientists say they have identified the signal that the brain sends to the rest of the body to control biological rhythms, a finding that overturns a long-held theory about our internal clock. Fri, 09 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091008143005.htm http://www.sciencedaily.com/releases/2009/10/091007103026.htm Recent bank failures point to the continuing need for vigilance by regulators and investors. Now, a new report discusses the possibility of an early-warning system that spots the outliers before they fail. Thu, 08 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091007103026.htm http://www.sciencedaily.com/releases/2009/10/091006113005.htm Researchers in Spain are creating a statistical model to calculate the probability of university students dropping out and to help in the drawing up of strategic plans to reduce the number of students who give up their studies. Wed, 07 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091006113005.htm