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Tag: "never" at biology news

'Tribbles' protein implicated in common and aggressive form of leukemia

... first described in fruit flies. "Tribbles had never been directly linked to human malignancy," says senior author Warren S. Pear, MD, PhD, Associate Professor of Pathology and Laboratory Medicine. "This is a new protein to human cancer and has a specific and overwhelming effect when expressed in hemat...

For crickets, parasitic flies can stop the music

...ida, the parasitic flies are present only in fall, never in spring. The researchers?findings seemed to agre... mate many more times. Also, many male crickets never sing, apparently finding mates by simply walking around until they encounter females. That raises th...

Scientists discover role for dueling RNAs

...entirely new process of gene regulation that we've never seen before in eukaryotic cells." There is a method to this sense/antisense madness, one that has a kind of yin and yang quality. When conditions around yeast cells are good and rich in nutrients, the cells divide by mitosis--that is, the DNA d...

HIV exploits competition among T-cells

...V remained in a state of permanent latency and was never able to escape the immune system's grasp to develop into AIDS." ...

Hospital-acquired infections -- Inevitable?

... "Despite all of our hard work, medical care can never be error free," commented Dr. Nash about the widespread beliefs about HAI. "What we must strive for is care that is harm free. Changing our mindset will go a long way toward restoring the faith of the public and improving the overall quality of medic...

New dwarf buffalo discovered by chance in the Philippines

... foresight of these two individuals, science might never have documented what has turned out to be an extre...lippines, most of which is an oceanic archipelago, never connected to any continental land mass. "Documenting past mammal diversity in the Philippines, an...

Study: Living coral reefs provide better protection from tsunami waves

...ciences and International Affairs. "Scientists had never before studied this effect by the numbers, nor had they ever analyzed it over a wide variety of coastal shapes. This study provides yet another motivating factor for protecting the planet's coral reefs from degradation." The team's findings appear ...

History-hunting geneticists can still follow familiar trail

...ndrial DNA and genetic variation in a way that has never been done before," said Marc Allard, an associate professor of biology at George Washington University who was not involved in the study. "Population geneticists have used mitochondria for all kinds of work for 20 years, and to think that mtDNA didn'...

Asia's odd-ball antelope gets collared

...eserts with no any saiga. Future generations will never forgive us for our carelessness."...

Batfish to the rescue!

... choked to death by seaweed ?although the fish was never previously known as a weed-eater. Scientists at the ARC Centre of Excellence for Coral Reef Studies (CoECRS) who were studying how coral reefs are lost to weed were astonished when, after removing a cage from a particularly weedy bit of reef, the...

Fatty fish protects against cancer

...enal cancer by 74 per cent compared with those who never ate fatty fish. The group who ate fresh fish at least once a week but for whom follow-up information were unavailable, saw a 40 per cent reduction. "This is the first time that a link between the consumption of fatty fish and renal cancer has been ...

Oldest animal fossils may have been bacteria

...its mineral contribution the other organisms might never have fossilized. ...

How blood flow dictates gene expression

...ning, or endothelium, to the smooth muscles, which never sees a blood cell," says senior author Mark Kahn, MD, Associate Professor of Medicine. "That's where Klf2 fits: This is the first time, at a molecular level, that this chain has been demonstrated in an animal." Swirling eddies of blood form when ...

Living laboratory found on shoreline statues

...ss the world on the coasts of Australia. They are never normally found on sandy beaches such as Crosby but the hard surface of the sculptures has provided them with an ideal habitat for settlement as well as offering scientists an important insight into factors influencing colonisation. The installat...

On the golf tee or pitcher's mound, brain dooms motion to inconsistency

...equiring significant movement are novel. Predators never get the chance to catch and kill prey in exactly t...e. You typically find yourself doing things you've never done before." The value of practice and training is that they can reduce the variation in the mind...

Researchers use multiphoton microscopy to watch chromosomes in action

...s of new proteins. But this well-known process had never been seen in living cells. Yao used multiphoton microscopy (MPM) to image living salivary gland tissue of Drosophila (fruit flies). Unlike other methods, which lack penetrating power and can damage the specimen, MPM delivers crisp, clear images, ...

Recurrence of a flu pandemic similar to infamous 1918 flu could kill 62 million

...nd to have higher mortality," said Murray, "but we never expected that so much of the cross-country and cross-community variation would be related to economic status." The researchers caution that per capita income only explains about half of the wide mortality range seen among--and in many cases within...

Ocean temperature predicts spread of marine species

...umed by predators, encounter harsh environments or never reach their destination and starve. For endangered species, survival of some animals may depend on whether offspring from parents in one protected area can get to another area where they are safe from harvest. "In warmer waters, marine protected area...

A simple feedback resistor switch keeps latent HIV from awakening

...this system would be foolproof. But this is almost never the case--there is always noise and always the potential for some low level of erroneous transcription. This poses a problem for the virus--how does it prevent stray transcription from erupting into full-blown activation? Certain bacterial viruses...

Scientists find a key to immune system's ability to remember

...n helping "naive" T cells -- those cells that have never been exposed to a particular pathogen -- capture the receptor template of the invading agent and store it for future reference. Among the millions of naïve T cells, there are a few that are primed for active duty against an individual infectious agen...

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