Tag: "simulations" at biology news
Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily
...will provide vital data to conduct future computer simulations
of HIV dynamics to help further drug discovery and prevent deadly infections. We found that HIV fusion peptide dramatically decreases the amount of energy needed to bend a cell-like membrane, said Stephanie Tristram-Nagle, associate research profes...
Simulations unravel outer membrane transport mechanism
...s of every atom in the system, the researchers ran simulations
of various scenarios to test which hypotheses were...searcher Michael C. Wiener. The good thing about simulations
is that you can monitor the position of every atom, Tajkhorshid said. The task was enormous, howev...
What's going on in the body? Advanced time-of-flight PET takes a superior 'look'
..."Previously, we have studied TOF/PET with computer simulations
and controlled experiments to approximate the behavior within the human body, showing that we can get very good image quality with shorter scanning times," she said. "We have now moved our investigation to clinical studiesusing PET scans from patient...
'Virtual Patient' to simulate real-time organ motions for radiation therapy
...he course of the radiation treatment." Real-time simulations
could allow doctors to spot the small fractions of time when the lungs, liver, kidneys, and eventually the heart, are stationary relative to the external radiation beams. These opportune moments during the actual therapy mean that doctors will have m...
Magnetic field uses sound waves to ignite sun's ring of fire
...esults were confirmed by state-of-the-art computer simulations
that show how the leaking waves propel fountains of hot gas upward into the sun's atmosphere, and fall back to its surface a few minutes later. ...
Climate change signal detected in the Indian Ocean
... "From ocean measurements and by analysing climate simulations
we can see there are changes in features of the ocean that cannot be explained by natural variability," said CSIRO oceanographer Dr Gael Alory. "These oceanic changes are almost certainly linked to changes in the heat structure of the atmosphere an...
Computer model maps efficient inoculation of hospital staff in pandemic outbreak
...l Epidemiology and reports the results of computer simulations
comparing several inoculation strategies. "Durin...unmanaged 'free-for-all' scenario that in computer simulations
resulted in wait-times as long as an hour -- time spent away from patient care. "Just having everyon...
Latent memory of cells comes to life
...enhagen have used mathematical models and computer simulations
to examine fundamental mechanisms of cell memory. The research is an interdisciplinary cooperation between molecular biologists and physicists and has just been published in the prestigious scientific journal CELL where it is featured on the cover pa...
From ink to optics, study of particle mixtures yields fundamental insights
...ers. Researchers have long tried to use computer simulations
to determine the conditions under which colloids w.... Panagiotopoulos and Kumar predict that similar simulations
of small numbers of particles to calculate the behavior of entire systems will allow researchers to ...
Dinosaur hearing, listening to muscle noise, quieter cubicles
...versity ( email@example.com ) will present computer simulations
and theoretical models that predict acoustic propagation in the atmospheres of various bodies such as Titan, Venus, and Mars (3aPAb3, 3aPAb5, 3aPAb6). Gregory Delory of UC Berkeley ( firstname.lastname@example.org ) will discuss what was intended to be t...
A matter of force
...operties." Ndlec and his group combined computer simulations
with microscopy studies to test the predictions ma...ive more net force in that direction. But computer simulations
show that the concept of force generators that translate the dynamic behaviour of microtubules into ...
Arctic ice retreating more quickly than computer models project
...he studys co-authors. The authors compared model simulations
of past climate with observations by satellites and other instruments. They found that, on average, the models simulated a loss in September ice cover of 2.5 percent per decade from 1953 to 2006. The fastest rate of September retreat in any individua...
Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck
...neck, a team of scientists has conducted molecular simulations
at the San Diego Supercomputer Center (SDSC), base...ps from papermills and fast-growing weeds. "Our simulations
have given us a better understanding of the interactions between the enzyme complex and cellulose at...
Everything starts with recognition
...nning tunnelling microscopy movies and theoretical simulations
they have shown how dynamic interactions induce th...table situation. By a combination with theoretical simulations
done at Kings College London, the researchers have shown for the first time this dynamic mechanism o...
Ethanol vehicles pose a significant risk to human health, study finds
...acobson programmed the computer to run air quality simulations
comparing two future scenarios: A vehicle fleet...nd hospitalizations The results of the computer simulations
were striking. ''We found that E85 vehicles reduce atmospheric levels of two carcinogens, benzene ...
First impressions: Computer model behaves like humans on visual categorization task
...as well as groups of animals. As preliminary model simulations
predicted, the task became harder as the relative size of the animal decreased and the amount of clutter (the background scene) increased. Importantly, the results showed no significant difference between humans and the model. Both had a similar pa...
Carry on walking!
...University of Manchester, which also uses computer simulations
to try to understand evolutionary processes, particularly the way in which we and other animals move. Future plans are to extend this study to assess the energy cost of carrying in great apes which will be very tricky indeed. Computer models of e...
Simulated populations used to probe gene mapping
...s are allowing scientists and engineers to conduct simulations
that grow more realistic each year. While companie...f Texas M. D. Anderson Cancer Center used computer simulations
to trace genetic changes over thousands of generations in a simulated population of hundreds of thou...
UC San Diego supercomputer simulations may pinpoint causes of Parkinson's, Alzheimer's diseases
...y using molecular modeling and molecular dynamics simulations
in combination with biochemical and ultrastructural analysis shows that alpha-synuclein can lead to the formation of pore-like structures on membranes. In contrast, he said, beta-synuclein appears to block the propagation of alpha-synucleins into ...
Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu
...iruses using a structure-based approach; Develop simulations
of the molecular dynamics involving interactions a... allowing it to access data for molecular-dynamics simulations
using high-performance computing. "We need a better way to gain insight into the interactions among ...
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