It's no secret that jet lag and night-shift work can wreak havoc on the way our body's internal clock syncs up our daily wake-sleep cycle, known as circadian rhythm, but now researchers say they are a step closer to understanding ...
Molecular & Computational biology
Nov 30, 2021
0
137
Oceans, lakes and rivers often contain a large number of microplastic particles on their surface. Impacting raindrops cause many droplets with an almost equally high concentration of microplastics to be thrown up into the ...
Environment
Nov 18, 2021
0
149
Daily life is full of choices. How humans and other animals decide to allocate tiime and effort across competing priorities has fascinated researchers for decades. Psychologists have found that most animals allocate their ...
Plants & Animals
Nov 16, 2021
0
53
In the quest for fusion energy, understanding how radio-frequency (RF) waves travel (or "propagate") in the turbulent interior of a fusion furnace is crucial to maintaining an efficient, continuously operating power plant. ...
Plasma Physics
Nov 11, 2021
0
302
The mid-ocean "twilight zone" holds the key to several tantalizing questions about the marine food web and carbon-sequestering capacity of the ocean. But studying this vast and remote area is extremely difficult. Many inhabitants ...
Plants & Animals
Nov 01, 2021
0
95
Syringomyelia is a spinal cord disease characterized by fluid-filled cavities within the spinal cord tissue, which was first described over 400 years ago. However, the mechanism by which these cavities are formed is still ...
Veterinary medicine
Oct 25, 2021
0
10
You can't see it happening. But what goes on below ground in a forest is very important in determining its fate.
Earth Sciences
Oct 19, 2021
1
75
A University of Toronto astronomer's research suggests the solar system is surrounded by a magnetic tunnel that can be seen in radio waves.
Astronomy
Oct 18, 2021
11
1103
Whistler mode chorus waves are electromagnetic emissions common in planetary magnetospheres. Among other impacts, their scattering of magnetospheric electrons is one driver for the formation of auroras. An important attribute ...
Planetary Sciences
Oct 15, 2021
1
77
New research conducted by researchers in the lab of Penn's E. James Petersson in collaboration with Oregon State University and the University of Washington describes how proteins in living cells can be engineered to include ...
Molecular & Computational biology
Oct 13, 2021
0
46
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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