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Tag: "always" at biology news

Sooner is better with cochlear implants, Stanford scientist shows

...tion, the lips and face make certain gestures that always occur together with certain sounds. "The brain is always combining what it sees with what it hears and making the best guess at what was said," he said. In m...

MicroRNA may have fail-safe role in limb development

...cs Institute. "In developmental biology, there has always been debate about why forelimbs are different from hindlimbs. We now think this microRNA is regulating something important in the hindlimbs but not in the forelimbs." Scientists do not know exactly what is happening, but they think miR 196 acts as a...

Largest study of human 'interactome' reveals a novel way

...t the relative importance of a specific protein is always reflected by the number of other proteins it interacts with in the cell. According to Pandey, the team's comparison of almost 25,000 human, 16,000 yeast, 5,500 worm, and 25,000 fly protein-protein interactions showed that, among these more than 70...

Wisconsin scientists discover a master key to microbes' pathogenic lifestyles

...h a transformation to become serious pathogens has always been a puzzle. Now, however, a team of scientists from the University of Wisconsin School of Medicine and Public Health reports the discovery of a master molecular sensor embedded in the spores of the fungi that triggers the transformation. The findi...

Liquid ventilation

...these cases provide artificial surfactant, but not always in sufficient amounts to provide correct therapy. In order to alleviate this situation, the Nautical School at the University of the Basque Country has developed a liquid respiration respirator. The machine simulates placentary respiration by fillin...

UC Berkeley researchers create a biologically-inspired artificial compound eye

... the April 28 issue of the journal Science. "I've always wanted to create an advanced, three-dimensional optical system," Lee said, "but conventional microfabrication technology is two-dimensional. So, I started thinking about basing a fabrication system on the developmental stages of insect eyes that I'd ...

Pacific Islands paradise protected

...ected Area ensures that the people of Kiribati can always benefit from the rich ocean life of their home. "If the coral and reefs are protected, then the fish will thrive and grow and bring us benefit," President Tong said. "In this way all species of fish can be protected so none become depleted or extinct...

Scientist uses dragonflies to better understand flight

... weight. That is weird, because with airplanes you always think about minimizing drag. You never think about using drag." The next question, she said, is whether engineers can use these ideas to build a flapping machine as efficient as a fixed-wing aircraft. Questions of size and feasibility remain. "To h...

UW scientists unravel critical genetic puzzle for flu virus replication

...ttern abutting the membrane of the virus. They are always arranged in a circle of seven surrounding another ...virus particles, when observed as a cross section, always displayed the circle of seven RNA fragments surrounding another segment pattern. "No one has identi...

Rice bioengineers pioneer techniques for knee repair

...s by acting as a template for new growth, but they always present a risk of toxicity due to the fact that they are made of materials that aren't naturally found in the body. In the newly reported findings, Athanasiou and postdoctoral researcher Jerry Hu, using nothing but donor cells, grew dime-sized disks...

Taking a bite out of a fellow worker helps wasps recruit new foragers

...g interactions. O'Donnell said the biting did not always provoke an individual to begin foraging immediately, noting the biting seems to have a cumulative effect. Some insects were bitten multiple times for hours before leaving the nest to forage. "Going off the nest to forage, where they are exposed to ...

Alcoholism, smoking and genetics among Plains American Indians

...so among treatment alcoholics. The assumption has always been 'everything you find in Caucasian men can be applied to everyone else,' but this study shows that you cannot." ...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...ave been carried out in human groups, but there is always the problem of precise measurement of phenotype and controlling for environmental variation in human studies ?which is not as great an issue in animal studies." ...

New drug could reduce tissue damage after heart attack

... concentration suffer higher mortality, and CRP is always deposited in and around the damaged heart tissue. Inflammation contributes significantly to the extent of heart attack damage and this can be exacerbated by CRP. The UCL team has previously shown that human CRP increases the severity of damage in ...

Pleasing plant shapes explained by new computer model

...any theories about why phyllotaxis exists but have always wondered how it happens," said Smith. "This model is exciting because it proposes a mechanism that works and can be used to try and prove some of the biological theories about the growth process." Smith and Prusinkiewicz worked with the botanists in...

Great (taste) expectations: Study shows brain anticipates taste, shifts gears

...ps of liquid. But in the study, the cues would not always match the taste they were said to presage. His group observed that when subjects were given a cue that suggested the taste they were about to experience would be less bitter, the taste was perceived as such, and the regions of the brain that code ta...

Common bacteria pirate natural mechanism to get inside cells

...hanism for cells. You don't want your receptors to always be on." Interestingly, this self-regulatory mechanism seems to work best when a receptor, not a bacteria, is the instigator. Unlike receptors, bacteria and viruses don't degrade if they stay inside the vesicles because fusion with a second vesicle t...

Human albumin from tobacco plants

...as been the production of albumin from vegetables, always using nuclear transformation. The novelty in this research arises from the method of obtention of the HSA. The plastidial system enables the extraction of great quantities of albumin. With nuclear transformation, the maximum level obtained is 0.5% ...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...farther off shore than usual to find food. They've always been described as a strictly coastal species, but they went as far out as 300 miles from the coast," he said. At the same time, Costa's group was also tracking the movements of elephant seals and albatrosses. These species, which typically forage ac...

The closest look ever at the cell's machines

...lar nature." "Investigating protein complexes has always posed a tricky problem ?they're too small to be studied by microscopes, and generally too large to be studied by techniques like X-ray crystallography," says Russell. "But they play such a crucial role in the cell that we need to fill in this gap. Th...

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