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Tag: "features" at biology news

Memories: It's all in the packaging, scientists say

...region is responsible for binding together all the features of a particular memory so that contextual details,...s. A complete memory of an event requires that the features of the event be brought together and processed by the brain as a common perceptual representation, b...

Regulating the nuclear architecture of the cell

...gulate the organization of the nucleolus and other features of nuclear architecture, maintaining genome stability in the fruit fly Drosophila melanogaster. Their results are published in Nature Cell Biology and are now available online to subscribers. Because much of the genome of Drosophila is shared wit...

New system could drastically reduce herbicide use

...ess to information that provides the morphological features of plants, to help the robot determine just what is and isn't a weed. Once a weed is identified, a robotic arm attached to the front of the machine engages a device the researcher calls "a custom-designed end effector." There are two layers to the...

Nerve cell software keeps track of brain change

...allows researchers to reliably measure significant features of cells' appearance as they change in response to drugs, biochemicals or diseases like dementia. "Benchmarking studies have shown that the software can do this one hundred times faster than a person using manual tracing methods can," Dr Vallotton ...

The first tree genome is published: Poplar holds promise as renewable bioenergy resource

...maller than the genome of pine, are among the many features that led researchers to target poplar as a model crop for biofuels production. "Under optimal conditions, poplars can add a dozen feet of growth each year and reach maturity in as few as four years, permitting selective breeding for large-scale su...

Researchers image molecular motor structural changes

...e by averaging many images to reinforce the common features that show the structure of the protein molecules." Linda Amos, Ph.D., from the U.K.'s Medical Research Council and senior author of the paper, provided essential advice for the computational analysis and analyzed the resolutions of the final images....

Mayo Clinic: Gene expression profiling not quite perfected in predicting lung cancer prognosis

... between gene expression profiles and pathological features overlap significantly. Current analytical algorithms favor genes at high expression or genes highly differentially expressed, most of which are related to tumor differentiation and may not correlate with clinical outcomes; conversely, genes express...

New dwarf buffalo discovered by chance in the Philippines

... Scientists were able to determine the size and features of the new species based on a partial skeleton consisting of two teeth, two vertebrae, two upper arm bones, a foot bone, and two hoof bones. The fossil could not be dated with certainty, but the authors estimate that it probably lived during the Plei...

Researchers find docking sites for glucocorticoid receptor and Hsp90

...at is under review cover the identification of the features of the glucocorticoid receptor (GR) recognized by Hsp90 and two sites on Hsp90 that interact with GR. To identify these sites, Darimont's team investigated 49,000 randomly introduced GR mutants and 11 specifically designed Hsp90 mutants for their bin...

Parkinson's mutation stunts neurons

...rm of PD that mimics the clinical and pathological features of the common sporadic form of the disease. LRRK2 stands for "leucine-rich repeat kinase-2," which means that the LRRK2 protein is an enzyme called a kinase--a biochemical switch that activates other proteins by attaching a molecule called a phosphat...

West Australian fossil find rewrites land mammal evolution

... in the human arm. "This new fossil proves that features of land-living tetrapods (four-legged vertebrates) evolved much earlier in their evolutionary history than previously thought," Mr Fitzgerald, a researcher in the School of Geosciences, said. "This means that humans can trace their evolutionary roots...

Humpback whales have brain cells also found in humans

...igate how many convergent cognitive and behavioral features result from largely dissimilar neocortical organization between the two orders." They also suggest that the current study provides a framework for further investigations into the brain and behavior of cetaceans, which are naturally elusive, poorly do...

Ancient birds flew on all-fours

...a bird-like wishbone, along with classic reptilian features of a long bony tail, claws and teeth. Although scientists immediately noticed feather-like structures on the hind limbs, they were dismissed as insulating body feathers that didn't play a role in the animal's flight. It wasn't until several four-win...

Dust to gust

...ists have explained how the Bodélé valley's unique features might be responsible for making it such a major dust provider. It has been known for more than a decade that the existence of the Amazon rainforest depends on a supply of minerals washed off by rain from the soil in the Sahara and blown across the A...

A new jump start for aging blood vessels

...istration of TNFa to young arteries reproduced the features of vascular aging, such as blood vessel dysfunction and cell death, further confirming the role of TNFa in the aging of the cardiovascular system. The knowledge that cardiovascular disease is the leading cause of death for both men and women in th...

Molecular anatomy of influenza virus detailed

...akthrough has the potential to identify particular features of highly virulent strains, and to provide insight into how antibodies inactivate the virus, and how viruses recognize susceptible cells and enter them in the act of infection. "Being able to visualize influenza virus particles should boost our ef...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...allowed the researchers to distinguish debris from features of interest. ''The real point is that you can do ...owed the first high-resolution mapping of chemical features in a region of interest. ''We can analyze a few percent of one component in the presence of other co...

Gut reaction: Researchers define the colon's genome

...wed, along with our immune and nervous systems, as features of our biology that are affected by our individual environmental exposures? How is the human microbiome evolving as a function of our changing diets, lifestyle, and biosphere? Finally, how might we alter these microbial communities for better health ...

Mutant mice show key autism traits

...viors, seizures, and decreased learning, which are features associated with ASD." Finally, the researchers found that the mutant mice showed the same kind of abnormal overgrowth of neurons and their interconnections seen in some people with ASD that also show increased brain volume and enlarged heads. Wrote...

New study reveals structure of E. coli multidrug transporter protein

... another important view of some general structural features across multi-drug resistant transporter families." Other authors of the study include Yong Yin, Xiao He, Paul Szewczyk, and That Nguyen of The Scripps Research Institute. ...

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