News tagged with computer model

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Computer simulation

A computer simulation, a computer model or a computational model is a computer program, or network of computers, that attempts to simulate an abstract model of a particular system. Computer simulations have become a useful part of mathematical modeling of many natural systems in physics (computational physics), chemistry and biology, human systems in economics, psychology, and social science and in the process of engineering new technology, to gain insight into the operation of those systems, or to observe their behavior.

Computer simulations vary from computer programs that run a few minutes, to network-based groups of computers running for hours, to ongoing simulations that run for days. The scale of events being simulated by computer simulations has far exceeded anything possible (or perhaps even imaginable) using the traditional paper-and-pencil mathematical modeling: over 10 years ago, a desert-battle simulation, of one force invading another, involved the modeling of 66,239 tanks, trucks and other vehicles on simulated terrain around Kuwait, using multiple supercomputers in the DoD High Performance Computer Modernization Program; a 1-billion-atom model of material deformation (2002); a 2.64-million-atom model of the complex maker of protein in all organisms, a ribosome, in 2005; and the Blue Brain project at EPFL (Switzerland), began in May 2005, to create the first computer simulation of the entire human brain, right down to the molecular level.

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Neurons that can multitask greatly enhance the brain's computational power, study finds

Over the past few decades, neuroscientists have made much progress in mapping the brain by deciphering the functions of individual neurons that perform very specific tasks, such as recognizing the location ...

Neuroscience created May 20, 2013 | popularity 4.9 / 5 (12) | comments 1 | with audio podcast

Team develops mathematical model to measure hidden HIV

(Medical Xpress)—Scientists have long believed that measuring the amount of HIV in a person's blood is an indicator of whether the virus is actively reproducing. A University of Delaware-led research team ...

HIV & AIDS created May 08, 2013 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Stents disrupt blood flow

(Medical Xpress)—A researcher at ETH Zurich is designing a realistic artery model with an implanted stent and is using a computer to simulate the blood flow through the stent. In doing so he is uncovering ...

Cardiology created May 06, 2013 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Researchers develop sperm-sorting design that may aid couples undergoing in vitro fertilization

(Medical Xpress)—According to the World Health Organization, approximately 70 million couples experience infertility worldwide. Current data suggests that nearly one third of infertility disorders are due ...

Medical research created May 23, 2013 | popularity 5 / 5 (1) | comments 0

Baby's life saved with groundbreaking 3-D printed device that restored his breathing

Every day, their baby stopped breathing, his collapsed bronchus blocking the crucial flow of air to his lungs. April and Bryan Gionfriddo watched helplessly, just praying that somehow the dire predictions ...

Medical research created May 22, 2013 | popularity 5 / 5 (4) | comments 0

Computer model predicts when viruses become infectious

A new computer model could help scientists predict when a particular strain of avian influenza might become infectious from bird to human, according to a report to be published in the International Journal Data Mining an ...

Diseases, Conditions, Syndromes created May 20, 2013 | popularity not rated yet | comments 0

Expert discusses how BRAIN Initiative will affect neuroscience

Mapping the human brain, with its billions of neurons, is one of science's most elusive projects. But a new federal program—the $100 million Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative ...

Neuroscience created Apr 24, 2013 | popularity 5 / 5 (1) | comments 0