News tagged with computer model

Related topics: climate change , computer simulations , nasa , ocean , greenhouse gases

Modeling tumor dormancy

Cancer constantly wages war on the human body. Battles are won, lost or sometimes end in a stalemate. In pancreatic cancer, this stalemate—known as tumor dormancy—can last up to 25 years before becoming ...

Oct 16, 2014
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New drug blocks gene driving cancer growth

When active, the protein called Ral can drive tumor growth and metastasis in several human cancers including pancreatic, prostate, lung, colon and bladder. Unfortunately, drugs that block its activity are ...

Sep 14, 2014
popularity 4.2 / 5 (25) | comments 2

Tracking flu levels with Wikipedia

Can monitoring Wikipedia hits show how many people have the flu? Researchers at Boston Children's Hospital, USA, have developed a method of estimating levels of influenza-like illness in the American population by analysing ...

Apr 17, 2014
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Brain model pins down motor decisions

Talking or reading. Texting a message or listening. The dilemma of choosing between various tasks is not an invention of the modern information age. Humans and all vertebrates have to prioritise their actions. ...

Apr 09, 2014
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Artificial muscles that do the twist

In the heart, as in the movies, 3D action beats the 2D experience hands down. In 3D, healthy hearts do their own version of the twist. Rather than a simple pumping action, they circulate blood as if they ...

Feb 26, 2014
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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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