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Tag: "finds" at biology news

Penguins okay with human visitors?for now

...s the effects of humans on Magellanic Penguins and finds no immediate, negative effects of tourism. Although first seeing people is stressful for the penguins, habituation is rapid. The authors monitored the defensive head turns and the level of a hormone secreted in response to stress (plasma corticost...

Terahertz imaging may reduce breast cancer surgeries

...ved. If a histopathologist analyzes the tissue and finds tumor at or near the edges, this indicates that there is a higher chance of cancer recurrence. A second operation is required to remove more tissue, involving additional hospital resources and increased risk of patient morbidity. Thus, there is a cli...

Boosting newborns' immune responses

... published soon in the journal Pediatric Research, finds that when newborns' TLRs are stimulated during the...udy, to be published in the Journal of Immunology, finds that newborns' cord blood also has high levels of adenosine, providing an explanation for newborns' ...

Mobile phone use not linked to increased risk of glioma brain tumours

...ased risk of the most common type of brain tumour, finds the first UK study of the relationship between mobile phone use and risk of glioma. The results are published online by the BMJ today. The four year study by the Universities of Leeds, Nottingham and Manchester and the Institute of Cancer Research, ...

Warming trend may contribute to malaria's rise

...of Michigan theoretical ecologist Mercedes Pascual finds that, while other factors such as drug and pesticide resistance, changing land use patterns and human migration also may play roles, climate change cannot be ruled out. "Our results do not mean that temperature is the only or the main factor driving...

Extinctions linked to climate change

...udy being published Thursday in the journal Nature finds compelling evidence that global climate change created favorable conditions for a pathogenic fungus in Central and South America. That fungus, in turn, led to widespread extinctions of harlequin frogs at middle elevations of mountainous regions. In ...

Intimate kissing quadruples risk of meningitis in teenagers

...ruples a teenager's risk of meningococcal disease, finds a study published online by the BMJ today. Meningococcal disease is a life threatening condition with two incidence peaks: in early childhood and in adolescence. The incidence and fatality rate among teenagers in England and the United States rose...

Anti-HIV drug has potential to prevent transmission in women

...rs at The Miriam Hospital and Brown Medical School finds that a drug already given orally to treat HIV is also safe when applied as a vaginal microbicide gel. Microbicides are designed to prevent the sexual transmission of HIV and other sexually transmitted diseases and may be formulated as vaginal gels, f...

First demonstration of 'teaching' in non-human animals

...eaching. At the start of a tandem run, the leader finds a naïve individual who is willing to follow her. But tandem runs are rather slow because the follower frequently pauses to look round for landmarks so that it can learn the route. Only when the follower has done this does it tap on the hind legs and ...

Medieval diaries aid scientists ascertain increase in hot spots due to global warming

...ublished in Science reveals this week. The study finds that the number of 'hot spots' has increased dramatically in the Northern Hemisphere in the last century compared to the past 1200 years - adding to the growing evidence of wide-scale global warming. Dr Tim Osborn and Prof Keith Briffa, of the Clima...

Insects and mammals share common fat-building pathway, study suggests

...t in the Jan. 11, 2006, Cell Metabolism. The study finds that the so-called hedgehog (Hh) signaling pathway--an ancient suite of genes involved in determining the fates of many cell types--might also play an important role in fat formation in both flies and mice. The findings are the first to show a conser...

Illegal trade is propelling rare turtle toward extinction, new report

A new report released today finds that the illegal trade in the Roti Island snake-necked turtle, found only on one island in Indonesia, has left it all but extinct in the wild. Exotic pet enthusiasts in Europe, North America and East Asia are fueling the illegal trade for the turtle...

DNA: Bacteria's survival ration

...n the June 1 issue of the Journal of Bacteriology, finds that DNA is a critical food source in the battle of the fittest. Bacteria that stay alive just a little longer than their counterparts get a double reward: the competition for food lessens, and the supply of nutrients increases. "The bacteria actual...

New tiger report release: Tiger habitat down from just a decade ago

...nsive scientific study of tiger habitats ever done finds that the big cats reside in 40 percent less habita...ons to safeguard remaining populations. The study finds that conservation efforts such as protection from poaching, preservation of prey species, and preser...

Study identifies new role for breast cancer susceptibility gene

...ularization, and accelerated growth. "Our study finds that BRCA1 possesses a role in tumor suppression beyond maintaining genomic stability by regulating intercellular signaling within the tissue microenvironment. This view will extend BRCA1's tumor suppression function to the surroundings that influenc...

Molecular DNA switch found to be the same for all life

...han and their colleagues also show how when nature finds a mechanism that works well, such a mechanism is conserved through evolution. Said Nogales, "The specialization of DNA replication initiators took place a long time ago, separating them from other members of the AAA+ superfamily of proteins while...

UCLA study of community health project shows how group dynamics affect fitness, eating habits

...iewed journal Health Promotion Practice, the study finds that a six-week wellness-training program significantly increases vigorous physical activity among participants. A 12-week curriculum, meanwhile, boosts fruit and vegetable intake while reducing feelings of sadness and depression, and can even reduce...

Speeding the search for elusive chromosomal errors

...syndrome. Another technique, subtelomere analysis, finds smaller, submicroscopic abnormalities, but only in the regions directly below the telomeres, at the end of each chromosome. Recent advances in diagnostic gene chips, used by Dr. Shaikh's team, allow more precise analysis of very small DNA alteratio...

Pollutant haze heats the Arctic

... greenhouse gases. Now, a University of Utah study finds a surprising new way society's pollutants warm the far north: the Arctic's well-known haze ?made of particulate pollution from mid-latitude cities ?mixes with thin clouds, making them better able to trap heat. The effect makes the Arctic 2 degrees...

'Molecular assassin' targets disease gene

...perimental drug, Dz13, is like a secret agent that finds its target, c-Jun, within the cell and destroys it," he said. "It is a specific, pre-programmed 'molecular assassin'." The paper in Nature Biotechnology shows the potential of c-Jun as a drug target in inflammation. It details tests in a variety of ...

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