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Tag: "features" at biology news

Female butterflies go for sparkle -- not size -- when choosing to mate

... natural world, where dramatic colors and physical features often win the sexual-selection game, according to the UB researchers. "This is one of the first studies to show that such a small pattern element really matters in female choice," said Antonia Monteiro, Ph.D. a co-author on the paper and UB assistan...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...s relative to memories of previous durations. Such features have made the machinery of interval timing more elusive, and some even questioned whether an internal clock of this sort even exists." In the 1980s Meck and his colleagues at Brown and Columbia Universities proposed what became the traditional theor...

A 'dimmer switch' for genes

... beyond knowing the structure. Our data were about features that are not fixed in space, but that are flexible and changing." The team used a nuclear magnetic resonance, or NMR, which allows scientists to observe how the atoms of a molecule behave inside a magnetic field. The Graves team found that unstructu...

New technology shows our ancestors ate…everything!

...le those of A. africanus were more scratched, with features often running in more uniform directions. However, according to Teaford, who along with researchers from the University of Arkansas, Stony Brook University, and Pennsylvania State University carried out the data analysis, the study also revealed unex...

North & South American researchers find architectural abnormalities in T. cruzi ribosome

... combined their expertise to identify two peculiar features of the protein-making machinery of the parasite that causes Chagas disease. Their findings could help scientists develop a safe and effective drug for the disease, whose cardiac complications kill up to 30 percent of those infected. The unusual stru...

Yale scientists identify structure for RNA quality control

... was not fully determined. So, understanding these features of the Ro protein may allow the design of drugs to... was not fully determined. So, understanding these features of the Ro protein may allow the design of drugs to block the interaction between the antibodies and ...

New plant DNA libraries provides massive boost to world's plant researchers

...perties of plants. The new libraries have two key features that will make them particularly attractive to researchers. Firstly, there are genomic libraries from 20 different plant species, a far wider range than is available from other DNA library services. Secondly, the Warwick researchers have been able to...

Skull study sheds light on dinosaur diversity

...hat stance, and we can tie the appearance of those features with the proliferation of wide gauge tracks everywhere in the fossil record at the end of the dinosaur era." Wilson wonders if the change in locomotion---from typical sauropod narrow-gauge walking to titanosaur wide-gauge walking---corresponded to li...

Retina adapts to seek the unexpected, ignore the commonplace

...ound evidence that the retina actively seeks novel features in the visual environment, dynamically adjusting i...ist's sketch of the visual scene, highlighting key features while suppressing the less interesting regions." These findings provide evidence that the ultimate ...

Living with salt

...ive/ neutral mix. This and other unique structural features may enable the algal carbonic anhydrase to be active in the presence of salt, though not dependent on it. In a surprise twist, the researchers discovered that one other known carbonic anhydrase - found in mouse kidney - sported a similar, salt-tolera...

Possible treatment found for 'chemobrain'

...ther set of mammals, is used primarily to identify features that are similar, or conserved, among the genomes of the human and other mammals. Sequences that have been conserved throughout evolution often reveal important functional regions of the human genome. Initial data show that using low-density sequenci...

Breakthrough in micro-device fabrication combines biology and synthetic chemistry

...-controlled and highly-reproducible 3-D shapes and features currently unattainable by manmade processes. However, the naturally occurring diatom microshells do not have the specific properties needed for device applications, such as electrical conductivity, biocompatibility, thermal stability, and chemical c...

NHGRI Selects 13 More Organisms for Genome Sequencing

...ther set of mammals, is used primarily to identify features that are similar, or conserved, among the genomes of the human and other mammals. Sequences that have been conserved throughout evolution often reveal important functional regions of the human genome. Initial data show that using low-density sequenci...

Researchers create functioning artificial proteins using nature's rules

...ne-tuned over time to have their own idiosyncratic features in specific cells," said Dr. Ranganathan, who also is a Howard Hughes Medical Institute (HHMI) investigator. "We are suggesting that the functions proteins have today are the result of fine-tuning a basic ancestral template that we have now figured o...

Genome Sequence for Haemophilus Influenzae Completed

.... "It was a delight to learn about important basic features of animal hair that facilitate their unique lifestyles." "Most hair from animals has a distinctive pattern, which is how we can distinguish one species from another," says Weisel. "But otter hair is so different that it caught my attention." The fin...

Otter adaptations: How do otters remain sleek and warm

.... "It was a delight to learn about important basic features of animal hair that facilitate their unique lifestyles." "Most hair from animals has a distinctive pattern, which is how we can distinguish one species from another," says Weisel. "But otter hair is so different that it caught my attention." The fin...

Rensselaer researchers develop approach that predicts protein separation behavior

...omplex relationship between a protein's structural features and its chemical binding properties, and also aid in evaluating its potential biomedical applications." The research findings are reported in the Aug. 16 issue of Proceedings of the National Academy of Sciences in a paper titled "A Priori Predicti...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...malies in SSH can be used to identify warmer ocean features such as warm core rings, eddies and currents. The US National Oceanic and Atmospheric Administration (NOAA) is utilising Envisat RA-2 results along with those from other space-borne altimeters to chart such regions of 'tropical cyclone heat potenti...

Mechanism regulating tooth shape formulation found

...' mechanism directing the placement of tooth shape features called cusps. Position and shape of cusps determine whether a tooth shape belongs to human or mouse, for example. Whereas developmental initiation of cusp formation is known to involve several developmental genes at the places of future cusps, it has...

Researchers use RNAi libraries to identify regulators of apoptosis and chemoresistance

...as added to this combination, it produced clinical features of invasive human melanoma: darkly pigmented skin that progressed to ulcerated tumor nodules. Melanoma was observed as early as one month after the oncogenic combination was introduced. The tumors demonstrated aggressive local invasion but did not m...

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