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Tag: "never" at biology news

Record air pollution above the Arctic

...e of recent years. However, this „Arctic Haze" has never been as pronounced before. Aerosols constitute small particles in the atmosphere. They can be liquid or solid and serve as condensation nuclei during cloud formation. It is these properties that lead to aerosols influencing the climate system. „The ...

Scientists tie several cancers to common 'oncogene engine'

...et be found, the scientists said. "One would have never thought of grouping these tumors together," said David E. Fisher, MD, PhD, a pediatric oncologist at Dana-Farber and Children's Hospital Boston, who is senior author of the paper. The lead author is Ian J. Davis, MD, PhD, of Dana-Farber and Children'...

UCLA study finds same genes act differently in males and females

...in the same organs of males and females ?something never detected to this degree. Published in the August issue of Genome Research, the study sheds light on why the same disease often strikes males and females differently, and why the genders may respond differently to the same drug. "We previously had ...

New research finds surveys of larval-stage organisms effective for measuring marine biodiversity

...a there may uncover countless more species that we never knew existed." In addition to an alternative way to explore marine biodiversity, Barber hopes the findings will promote conservation. Despite being considered a "biodiversity hotspot," the Coral Triangle is one of the most threatened marine environ...

Infected for life

... in 1984, but a protein product from this gene has never been found. This caused Fraser and his research team to hypothesize that LAT may work through an miRNA molecule, which is a small piece of the LAT gene. It interferes with the translation of two cell proteins that are required for cell death: TGF-b a...

Science captures the essence of fruit

...ls for energy. What's more, chemical synthesis can never truly recreate nature; the flavour or fragrance will typically be slightly different to that found naturally in fruits and flowers. "Extraction is expensive and produces only limited quantities of product, reducing the number of commercially viable...

Researcher gives hard thoughts on soft inheritance

.... Not enough nurturing and grooming, and the gene never gets turned on. Richards says that whole mechanism appears to be the result of changes in DNA methylation associated with changes in DNA packaging. "These studies do not demonstrate inheritance between generations, but they do show that t...

Study shows frogs can play key role in stem cell research

... been obtained from mice, primates and humans, but never from amphibians. But, because the African clawed frog is easier to study than mice and humans, the Edinburgh team anticipate that it will become an important research tool in their quest to understand and, ultimately, treat disease using stem cells. ...

Federal testing for mad cow disease a failure, law review editor says

... years of existence, the Virus-Serum-Toxin Act has never been used or interpreted to regulate testing of any kind. Manipulating the act to include the BSE test perverts the statute's purpose." Congress should pass legislation forcing the USDA to license BSE tests to ranchers and slaughterhouses. "The USDA...

WWF captures first-ever photo of wild rhino on Borneo

...k by. "These are very shy animals that are almost never seen alive in the wild," said Matthew Lewis, Program Officer for WWF's Species Conservation Program. "The photos we get from the camera traps will eventually give us a better idea of the population structure by allowing us to identify individual rhin...

Brain-computer link lets paralyzed patients convert thoughts into actions

...ngevity and reliability of the sensor. Patient two never developed as much control as Nagle, and even Nagle's level of control, the authors note, "is considerably less than that of an able-bodied person using a manually controlled computer cursor." Despite remarkable progress, "this isn't being done for ...

Allergy battle could be won in five years, says scientist

...ergies in children. "Prevention of allergies has never before been possible," said Professor Garrod. "Current medicines don't act against the allergen at this early stage ?they only ease the symptoms ?so the development of these ADIs would be a major breakthrough in our fight against allergies." ...

Plants tell caterpillars when it's safe to forage

... of three uninfested corn plants - plants that had never been grazed - were placed around the cups of larvae. After eight hours, about 20% more larvae went into hiding when the lights were on and plants were added. And when plants were introduced under dark conditions, about 30% less larvae were found hidi...

Tyrannosaur survivorship -- tough times for teens

...also surprising that something like this study has never been done before." For decades, scientists believed dinosaurs were bigger versions of living reptiles but this new research, published in the current issue of Science, shows that the life pattern of the Albertosaurus is closer to that of living lar...

Researchers find 'secret weapon' used by SARS virus

...showed it was caused by RNA degradation, something never before seen in an RNA virus." Exactly how that degradation takes place, how an RNA virus can preserve its integrity when it makes a protein that breaks down RNA, and whether a mutated non-RNA-degrading SARS coronavirus could constitute a workable ...

Genetic snooze button governs timing of spring flowers

...lower. Many of the cultivated varieties we use are never exposed to cold in a typical farmer's field growing season." When that is the case, a cold snap can fool sugar beets, for example, into flowering, a process that can ruin the crop by redirecting nutrients from the valuable root to the production of...

When the going gets tough, slime molds start synthesizing

... other enzymatically active protein domains. This never seen before hybrid arrangement works like a very efficient bucket brigade that synthesizes polyketide molecules in slime mold cells. "Nature has paved the way to exploit this novel domain arrangement to bioengineer more efficient ways of making mo...

Global study shows all tobacco bad for the heart

...outh Asia, was harmful. Compared to people who had never smoked, smokers had a three-fold increased risk of...orld should pay attention to the message that it's never too late to quit. This is an important study documenting the powerful and persistent dangers of tob...

CHAVI announces international search for genes affecting HIV response

...Despite repeated exposures, some people apparently never become infected with HIV. Among those who become infected, there is dramatic variation in how the body responds to HIV and in how long it takes for infection to progress to AIDS. EuroCHAVI scientists will try to understand these differences by search...

Magnetism and mimicry of nature hold hope for better medicine, environmental safety

...l fluids because the trapped air between the wires never allows for much of the fluid to come into contact with the surface," Garcia says. That is crucial to accurate analysis because it prevents the chemicals and other materials in the droplet from combining and reacting with the chemical compounds in t...

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