News tagged with simulation model

Physics research suggests new pathways for cancer progression

Observing that certain cancer cells may exhibit greater flexibility than normal cells, some scientists believe that this capability promotes rapid tumor growth. Now computer simulations developed by Boston University Biomedical ...

Physics / General Physics

created Feb 09, 2012 | popularity 5 / 5 (1) | comments 0

Tree rings may underestimate climate response to volcanic eruptions: study

Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...

Space & Earth / Earth Sciences

created Feb 05, 2012 | popularity 3.7 / 5 (3) | comments 22 | with audio podcast

New study may answer questions about enigmatic Little Ice Age

A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages ...

Space & Earth / Earth Sciences

created Jan 30, 2012 | popularity 4.7 / 5 (7) | comments 9 | with audio podcast

Cosmology in a Petri dish

Scientists have found that micron-size particles which are trapped at fluid interfaces exhibit a collective dynamic that is subject to seemingly unrelated governing laws. These laws show a smooth transitioning ...

Physics / General Physics

created Jan 26, 2012 | popularity 4 / 5 (7) | comments 4

Replacing Medicare visual acuity screening with dilated eye exams appears cost effective

Replacing visual acuity screenings for new Medicare enrollees with coverage of a dilated eye exam for healthy patients entering the government insurance program for the elderly "would be highly cost-effective," suggests a ...

Medicine & Health / Other

created Jan 09, 2012 | popularity not rated yet | comments 0

'Green routing' can cut car emissions without significantly slowing travel time

The path of least emissions may not always be the fastest way to drive somewhere. But according to new research from the University at Buffalo, it's possible for drivers to cut their tailpipe emissions without significantly ...

Technology / Energy & Green Tech

created Dec 14, 2011 | popularity 2.3 / 5 (3) | comments 8 | with audio podcast

CO2 bonds in sea ice: Small living creatures with major impact

Due to the presence of salts, the freezing point of sea water is below zero. During freezing, channels in which the salt accumulates, so-called "brine channels," are formed in the ice. They serve as a habitat ...

Space & Earth / Earth Sciences

created Nov 11, 2011 | popularity 4.8 / 5 (4) | comments 4

Fecal occult blood testing effective in colonoscopy screenings

Fecal immunochemical testing (FIT) is more effective in its health benefits at the same or lower costs compared to guaiac fecal occult blood testing (gFOBT) at all levels of colonoscopy capacity, according to a study published ...

Medicine & Health / Cancer

created Nov 09, 2011 | popularity 4 / 5 (1) | comments 0

Fish follow the rules to school

The rules of school are simple: it is all about watching the kid nearest to you and making sure you do what they do. Researchers at the mathematics department at Uppsala University, together with biologists at Sydney University ...

Biology / Plants & Animals

created Nov 07, 2011 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Biodiversity can promote survival on a warming planet

Whether a species can evolve to survive climate change may depend on the biodiversity of its ecological community, according to a new mathematical model that simulates the effect of climate change on plants ...

Biology / Ecology

created Nov 04, 2011 | popularity 5 / 5 (4) | comments 1 | with audio podcast

Wolf hunting strategy follows simple rules

(PhysOrg.com) -- A new study of wolves (Canis lupus) has found that communication between pack members and a social hierarchy are not essential features of a successful hunt, and all the wolves have to do ...

Biology / Plants & Animals

created Oct 28, 2011 | popularity 4.8 / 5 (4) | comments 6 | with audio podcast report

Policymakers should prepare for major uncertainties with Medicaid expansion

The number of low-income, uninsured Americans enrolling in Medicaid under the expanded coverage made possible by the Affordable Care Act (ACA) of 2010 could vary considerably from the levels currently projected by the Congressional ...

Medicine & Health / Health

created Oct 26, 2011 | popularity 5 / 5 (1) | comments 0

One size does not fit all for knee replacements and other medical devices

Undergoing a knee replacement involves sophisticated medical equipment, but innovative prosthetic design may not offer the same benefits for all knee replacement recipients, Yale School of Medicine researchers report in a ...

Medicine & Health / Other

created Oct 20, 2011 | popularity not rated yet | comments 0 | with audio podcast

Spiral arms hint at the presence of planets

A new image of the disk of gas and dust around a sun-like star has spiral-arm-like structures. These features may provide clues to the presence of embedded but as-yet-unseen planets.

Space & Earth / Astronomy

created Oct 19, 2011 | popularity 4.3 / 5 (6) | comments 2

Scientists release most accurate simulation of the universe to date

(PhysOrg.com) -- The Bolshoi supercomputer simulation, the most accurate and detailed large cosmological simulation run to date, gives physicists and astronomers a powerful new tool for understanding such ...

Space & Earth / Astronomy

created Sep 29, 2011 | popularity 4.9 / 5 (16) | comments 11 | with audio podcast

Simulation & Modeling for Acquisition, Requirements, and Trainin

Simulation is the imitation of some real thing, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system.

Simulation is used in many contexts, including the modeling of natural systems or human systems in order to gain insight into their functioning. Other contexts include simulation of technology for performance optimization, safety engineering, testing, training and education. Simulation can be used to show the eventual real effects of alternative conditions and courses of action.

Key issues in simulation include acquisition of valid source information about the relevent selection of key characteristics and behaviours, the use of simplifying approximations and assumptions within the simulation, and fidelity and validity of the simulation outcomes.

For more information about Simulation & Modeling for Acquisition, Requirements, and Trainin, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.