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Tag: "predictions" at biology news

Math that powers spam filters used to understand how brain learns to move our muscles

...mory bank so it could adapt and make more accurate predictions the next time around. Every time the learner repeated the task, it would sift through the prior knowledge in its memory banks and make a prediction on how to move, which in turn would also be memorized. While short term memory was periodically purged...

Researchers reveal structure of protein altered in autism

...re of the normal protein, researchers can now make predictions about how mutations in the gene affect the structure of the gene product,” said first author Davide Comoletti, Ph.D., UCSD research associate at the Skaggs School of Pharmacy. Autism spectrum disorders are developmental disabilities that cause imp...

'Short-circuit' found in ocean circulation

...e circulation of the world's oceans that could aid predictions about future climate change. This process in t...ts circulation before we can make really confident predictions about how the climate is going to change over the next 100 years. “This is a piece of knowledge ...

Study offers clues to 'Broken Heart Syndrome'

...pathy, offer more focused long-term care, and make predictions about their outcomes." ...

Changes in amino acids in the 1918 influenza virus cut transmission

...e in humans, this could help us make more accurate predictions on the ability of an influenza virus to transmit among humans and unravels the existence of molecular determinants of transmission that could be used as targets for the development of novel drugs that will stop influenza virus transmission, and there...

How trees manage water in arid environments

...ding a range of water resource phenomena including predictions about water supplies, Brown said. "This research seeks to characterize the explicit relationship between water availability and photosynthetic activities of the vegetation. This paper is the first step in that process, and it illustrates the seasonal...

Exploring the molecular origin of blood clot flexibility

...lot. This knowledge may enable researchers to make predictions about the function of differently formed fibrin clots in the circulating blood or in a wound. For example, when clots are not stiff enough, problems with bleeding arise, and when clots are too stiff, there may be problems with thrombosis, which resul...

Gene chips forecast ecological impacts of climate change

... levels of the greenhouse gas, carbon dioxide, the predictions for ocean acidification are more problematic than temperature stress alone. Data presented will show how gene chips and other molecular approaches can assist in understanding how marine invertebrates are responding to the climate-change related multi...

Bird flu -- Call for antiviral drugs to be shared

New predictions about bird flu, involving the use of a mathematical model, suggest that international cooperation to share antiviral drugs might be the best way to deal with an emerging pandemic. 'Bird flu'(avian H5N1 influenza) has not triggered a worldwide human ...

Satellites shed light on global warming

...make the models more realistic, which means better predictions for the future. Cipollini cited a recent modelling study by Canadian researchers that shows planetary wave speed is expected to increase considerably during this century as a side effect of climate change induced warming of the oceans, which may ...

Math model predicts cancer behavior

... the model. If the experimental data don't fit the predictions from the model, either the experiments or the model need to be corrected, he said. "You go back and forth, and every time you get a new result, you correct the model, and you're a little bit closer to reality," Quaranta said. "This is a paradigm th...

RNA map provides first comprehensive understanding of alternative splicing

...o assemble in a manner that again conformed to the predictions of the RNA map. In one case Nova blocked specific components of the splicing machinery, in another it enhanced the ability of this machinery to assemble the right way and use an alternatively spliced site that is otherwise poorly utilized. By offe...

Climate experts search for answers in the oceans

...pect improvements in operational weather and ocean predictions based on the application of these products," Dr Craig Donlon of the Met Office, United Kingdom, said. "ESA should be proud of their leading role in supporting these efforts through the International GODAE High Resolution Sea Surface Temperature Pilot...

Pressured by predators, lizards see rapid shift in natural selection

...ology can be studied on short time scales and that predictions about it can be tested experimentally. We predicted, and then demonstrated, a reversal in the direction of natural selection acting on limb length in a population of lizards." Losos and colleagues studied populations of the lizard Anolis sagrei on...

Protein folding: Building a strong foundation

...ies related to protein folding, tested the model's predictions against experimental data gathered for several forms of the protein azurin, a copper-containing protein that folds into a sandwich-like structure called a beta sheet, which is a common fold in nature that consists of two beta-sheets of amino-acid str...

Researchers map spread of pathogens in the human body

...se of antibiotics. As Dr. Mastroeni's more precise predictions will lead to the refined use of antibiotics, it will enable the medical field to devise more targeted treatments and to more effectively manage antibiotic drug resistance. In the past, similar investigations have been hampered by the difficulty ...

Ocean temperature predicts spread of marine species

...ow far larvae travel at a certain temperature. The predictions appear to hold for virtually all marine animals with a larval life cycle. "We can apply this rule to animals without having to go out and measure every species," O'Connor said. "Our general model gives us a powerful new way to study larval moveme...

Cougar predation key to ecosystem health

...The findings are consistent, researchers say, with predictions made more than half a century ago by the famed naturalist Aldo Leopold, often considered the father of wildlife ecology. "When park development caused cougar to begin leaving Zion Canyon in the 1930s, it allowed much higher levels of de...

UCSD study reveals how plants respond to elevated carbon dioxide

An important source of uncertainty in predictions about global warming is how plants will respond to increasing atmospheric carbon dioxide. Now biologists at the University of California, San Diego have made significant advances toward understanding the mechanism plants use to regulate their carbon ...

The higher the hierarchy, the greater the aggression

...bility to breed ran out in seasonal animals. These predictions were tested on field colonies of the paper wasp Polistes dominulus by recording aggression between all group members and then repeatedly removing the dominant wasps. When individuals were experimentally promoted in rank, their aggression toward sub...

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