HIV & AIDS

Mathematicians develop a model of the movement of immune cells

Mathematicians from RUDN University have developed a computational model that allows predicting the mobility of T-lymphocytes, immune cells that recognize and destroy viruses. The model will help in the treatment of immune ...

Diseases, Conditions, Syndromes

A Zika vaccine could save suffering and costs

Global climate change has raised concerns that mosquito-borne diseases could become increasingly prevalent in the United States as warmer temperatures lead to increased mosquito activity.

Cardiology

Technique reveals whether models of patient risk are accurate

After a patient has a heart attack or stroke, doctors often use risk models to help guide their treatment. These models can calculate a patient's risk of dying based on factors such as the patient's age, symptoms, and other ...

Psychology & Psychiatry

Study reveals molecular features of anxiety in the brain

Nearly 40 million people in the U.S. have an anxiety disorder. While treatment options exist, treatment success varies, and many people do not respond to treatment until weeks or months after they begin anti-depressants. ...

Alzheimer's disease & dementia

Astrophysics and AI may offer key to early dementia diagnosis

Crucial early diagnosis of dementia in general practice could improve thanks to a computer model designed in a collaboration between Brighton and Sussex Medical School (BSMS) and astrophysicists at the University of Sussex.

Neuroscience

How minds make meaning

Meaning is central to language. But how do we combine the building blocks of thought and language to compose meaning? A special issue of the Philosophical Transactions of the Royal Society B, edited by Andrea E. Martin from ...

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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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