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Tag: "mysterious" at biology news

Ancient DNA provides clues to the evolution of social behavior

...,000 years old-to unravel the colonial tuco-tuco's mysterious past and pinpoint the cause of its low genetic diversity. The results are published in the April 20 edition of the journal PLoS Genetics. ''This advance in the analysis is fundamentally different from anything anyone has done with ancient DNA,'' say...

New study explores beetle species with two forms of females

...of The American Naturalist attempts to explain the mysterious persistence of two forms of females in many diving beetle populations. Their findings have important implications for theories of sexual conflict, which arises when the costs and benefits of multiple matings differ for males and females. "The male...

Discovering the first steps in transcription-coupled repair

...ption-coupled repair (TCR), an essential but still mysterious mechanism of DNA repair. If a blockage occurs whe...lleagues have shed early light not only on how the mysterious process of transcription-coupled repair works at the molecular level, but also on the underlying cau...

Free-energy theory borne out in large-scale protein folding

.... "We know that misfolded proteins play a key but mysterious role in Alzheimer's, Parkinson's, diabetes and a host of other diseases, so mapping the normal route a protein takes - and finding the off-ramps that might lead to misfolding ?are vitally important," Wittung-Stafshede said. Rice's studies were carri...

Scientists must offer solutions for conserving tropical forests in a rapidly changing world

...ine species measured annually for 17 years. These mysterious changes may be caused by large-scale drivers, such as increasing carbon dioxide in the atmosphere, intense droughts, or other poorly understood phenomena. Wright, who has studied tropical forests and its plant and animal inhabitants since the late '...

Prions rapidly 'remodel' good protein into bad, Brown study shows

...nge "mating" maneuver sheds important light on the mysterious molecular machinery behind prions, infectious proteins that cause fatal brain ailments such as mad cow disease and scrapie in animals and, in rare cases, Creutzfeldt-Jacob disease and kuru in humans. Because similar protein self-replication occurs i...

Corn grain mould used as pesticide

...ng large amounts of aflatoxin as the cause of this mysterious 'turkey X' disease. Even today the toxin is regarded as one of the most virulent natural carcinogenic substances. The tasteless toxin is produced by the mould aspergillus flavus. It grows in hot, arid regions, in the south-west of the US and in many...

Field tested: Grasslands won't help buffer climate change as carbon dioxide levels rise

...reveal the first structural details of a family of mysterious objects called microcompartments that seem to be present in a variety of bacteria. The discovery was published Aug. 5 in the journal Science. "This is the first look at how microcompartments are built, and what the pieces look like," said Todd O. Ye...

Nighttime Dying Linked To Sleep Apnea From Brain Cell Loss

...reveal the first structural details of a family of mysterious objects called microcompartments that seem to be present in a variety of bacteria. The discovery was published Aug. 5 in the journal Science. "This is the first look at how microcompartments are built, and what the pieces look like," said Todd O. Ye...

New discovery blurs distinction between human cells and those of bacteria

...reveal the first structural details of a family of mysterious objects called microcompartments that seem to be present in a variety of bacteria. The discovery was published Aug. 5 in the journal Science. "This is the first look at how microcompartments are built, and what the pieces look like," said Todd O. Ye...

Long-sought flower-inducing molecule found

...ers. In the 30-ies a Russian scientist called this mysterious substance "Florigen". During the following 70 years scientists have been involved in an intense hunt trying to find out the true nature of "Florigen" which has been described as something of a "Holy Grail" for plant physiology. The reason is that the...

World-first technology enables study of ancient bacteria

...gle by finding out more about the behaviour of the mysterious hydrates. One theory now suggests that when the covering of "methane ice" which exists over much of the seabed of the Bermuda Triangle becomes unstable; this causes instability of the sea and an explosive mixture of air and methane above. Any ships ...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

...rn Peru. The research focused on devil's gardens, mysterious tracts of vegetation that randomly appear in the Amazonian rainforest. "Devil's gardens are large stands of trees in the Amazonian rainforest that consist almost entirely of a single species, Duroia hirsuta, and, according to local legend, are culti...

Team of international scientists departs today to discover the unknown in China's Himalayan region

...hat combines a roller coaster-like thrill with the mysterious legends of the Himalayan region. Expedition Everest will open in 2006 in the Asia section of the park. Discovery Networks will accompany CI and Disney to document the expedition's journey, tracking scientists searching for signs of new species, expl...

New Lab Research May Help Those Deafened By Immune System Attack

...eople get a firm diagnosis of what's causing their mysterious hearing loss. In the August issue of the Archives of Otolaryngology -- Head and Neck Surgery, researchers reports results from a study of 63 people with rapidly progressing hearing loss in Michigan, Pennsylvania and Indiana, and 20 people with norma...

Montreal researchers probe the genetic basis of memory

...avid Ron of New York University sheds light on the mysterious workings of the hippocampus, a region of the brain responsible for learning and memory. "Not all new information we acquire is stored as long-term memory," says Dr. Costa-Mattioli, a post-doctoral fellow in the laboratory of Dr. Sonenberg, who spear...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

... surface), the Southern Ocean is the planet's most mysterious and treacherous sea. For centuries, sailors have called it "The Roaring 40s," a reference to ceaseless winds that scream across Earth's barren southern latitudes, broken by no high lands. Deadly to explorers, inhospitable to even the mightiest ships...

Fox Chase study shows that weakened T-cell receptor signals change T-cell lineage

...he generation of gamma-delta T cells have remained mysterious until recently. As Robert Frost put it, Wiest pointed out: "Two roads diverged in a wood, and I-- I took the one less traveled by, And that has made all the difference." "Gamma-delta T cells represent the road less traveled," Wiest said. "However, t...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...ica's premiere wildlife sanctuaries to explore the mysterious and complex world of elephant communication. She and her colleagues are part of a scientific revolution that began nearly two decades ago with the stunning revelation that elephants communicate over long distances using low-pitched sounds that are ba...

Strongest proof yet found for prion hypothesis

...misformed proteins cause mad cow disease and other mysterious brain disorders Researchers at the University of ...MB) have produced the strongest proof yet that the mysterious and devastating brain diseases known as "transmissible spongiform encephalopathies" (TSEs) are trans...

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