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Tag: "simulations" at biology news

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...s from papermills and fast-growing weeds. "Our simulations have given us a better understanding of the interactions between the enzyme complex and cellulose at...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

...ruses 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 ...

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 flee...d hospitalizations The results of the computer simulations were striking. ''We found that E85 vehicles reduce atmospheric levels of two carcinogens, benzene...

Global 'sunscreen' has likely thinned, report NASA scientists

...st comprehensive experiment to date using computer simulations of Earth's 20th-century climate to investigate the...reaching the surface decreased. The dimming in the simulations closely matched actual measurements of sunlight declines recorded from the 1960s to 1990. Further...

Fish extinctions alter critical nutrients in water, study shows

...ies dies out. Now, a Cornell study using computer simulations has teased out how the disappearance of a freshwat... nutrients in the ecosystems studied, the computer simulations found. "The loss of the most heavily fished species led to the fastest declines in nutrient recycl...

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...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...versity ( ald227@psu.edu ) 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 ( gdelory@ssl.berkeley.edu ) will discuss what was intended to be t...

Arctic ice retreating more quickly than computer models project

... study’s 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...

'Virtual Patient' to simulate real-time organ motions for radiation therapy

...e 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...

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...archer Michael C. Wiener. “The good thing about simulations is that you can monitor the position of every atom,” Tajkhorshid said. The task was enormous, how...

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 profe...

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