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Tag: "near" at biology news

Penguin chicks exposed to human visitors experience spike in stress hormone

... at 30 and 60 minutes after capture, and for those near fledging the levels were almost identical between visited and undisturbed chicks. But even when the hormone levels evened out between the two groups as the chicks got older, their behavior was different. Nearly fledged chicks in tourist areas did no...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...treme cold-vent regions have previously been found near Monterey, California, where the phenomenon was discovered in 1984, in the Gulf of Mexico, and deep within the Sea of Japan. The recent report, however, presents the first finding of the type in the Antarctic, where the near-freezing water temperature...

Hybrid grass may prove to be valuable fuel source

... quite invasive," she said. At a research station near Hornum, Denmark, giant Miscanthus has been grown for 22 years in Europe's longest-running experimental field. The crop has never been invasive and rhizome spread has been no more than 1.5 meters (4.92 feet), said Uffe Jorgensen, senior scientist for ...

Nose odors and mouth odors: The brain distinguishes

... the other ended farther back in the nasal passage near the throat, where odors from the mouth would originate. As they introduced odors into one tube or the other, they scanned the subject's brains using functional magnetic resonance imaging, a technique in which harmless magnetic fields and radio waves ...

Bacteria recognize antimicrobials, respond with counter-defenses

...e, PhoQ, that acts as a watchtower and interceptor near the surface of bacteria cell membranes. The peptide binding activates PhoQ, which sets off a cascade of signals. The signals turn on a large set of bacterial genes. Some of genes are responsible for products that fortify the bacterial cell surface an...

Bird samples from Mongolia confirmed as H5N1 avian flu

...ecent avian influenza outbreak in Kovsgol Province near the Russian border from the Mongolian Ministry of Food and Agriculture, which conducted preliminary testing of birds that died at Erkhel Lake. Their finding coincided with confirmations of cases of avian influenza in Russia and Kazakhstan. Karesh and...

Primate virus jumps species barrier to humans for first time in Asia

...les every year. Temple workers and people who live near the temples also have a great deal of contact with monkeys at the religious sites. "In Asia, the amount of contact between humans and primates in temple settings dwarfs the contact due to bushmeat hunting," says Jones-Engel. For this study, the rese...

Proposal would allow wild animals to roam North America

...a of northern Mexico. Evidence shows that animals near the top of the food chain play important roles in structuring ecological systems and maintaining biodiversity, according to the paper. These keystone species -- animals that contribute to diversity of life and which the rewilding researchers would li...

Naturally occurring asbestos linked to lung cancer

...ave shown a significant association between living near deposits of naturally occurring asbestos and mesothelioma. This is the strongest evidence possible without conducting one-on-one interviews with each diagnosed mesothelioma patient or his or her family." Laurel Beckett, professor and vice chair of t...

Digging in the dirt for life's biochemical foundations

...the U.S. Department of Agriculture research center near Philadelphia, tagged nitrogen with easy-to-spot atomic markers and then watched as it traveled from soil to fungus to plant roots. Many had assumed that the fungus would play a modest role. The team found, however, that the fungus acts more like a f...

Vineyard weeds found to host Pierce's disease of grapes

...ted first, then plants particularly abundant in or near vineyards. "Our objectives were to determine the fate of Pierce's disease infections in previously untested plant species associated with southern San Joaquin Valley vineyards, and compare survival of the infections in selected field and greenhouse-...

Modification of program enables prediction of gene transcription

...e signals that regulate transcription reside right near the transcription site. There is a huge amount of ...ng so-called CpG "islands" known to be more common near the transcription-start site. It also has a knack for recognizing sequences that indicate splice sit...

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

... or Spanish cedar, were planted inside each garden near the base of a D. hirsuta tree actively patrolled... artificial tubes, were planted in devil's gardens near two D. hirsuta saplings, one with and one without domatia. After 24 hours, there was significant le...

Public release of pig genomic sequences

... analyzed. These sequences will be released in the near future together with a publication on pig gene expression. This far, the pig sequence data have been obtained thanks to an investment of app. 10 million US$ by CAS and DCPBP together with the Ministry of Science and Technology and the Natural Scienc...

‘Blue Brain?project explores thought at molecular level

... analyzed. These sequences will be released in the near future together with a publication on pig gene expression. This far, the pig sequence data have been obtained thanks to an investment of app. 10 million US$ by CAS and DCPBP together with the Ministry of Science and Technology and the Natural Scienc...

Weight control protein may yield antiobesity drugs

...se in body fat content. The mice also exhibited a near doubling of blood lipid levels and their livers grew to more than twice their normal size owing to a massive accumulation of fat, Rui said. Moreover, the animals developed severely elevated blood sugar, insulin, and leptin concentrations. Elevated l...

Researchers discover how malaria parasite disperses from red blood cells

... fried egg, with the parasites visible as a sphere near the center of the cell. (A diagram of the entire sequence appears at http://www.nichd.nih.gov/new/releases/malaria_graphic.cfm .) The cell's lop-sided appearance probably results from destruction of the cytoskeleton, the molecular scaffolding that...

Progress on HIV/AIDS significant but insufficient

...nt, treatment and prevention efforts were "nowhere near enough". For example, only 12 per cent of the people in need of antiretroviral therapies in low- and middle-income countries were receiving them. He called for increased resources, better planning, better and more vocal leadership, and real investme...

Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses

...ere will be a slight change in the electric charge near the nanotube," Johnson said. "The nanotube will then pick up on that change, turning it into an electric signal that can then be reported." According to Johnson, an array of 100 sensors with different response characteristics and an appropriate patt...

WCS says avian flu prevention should focus on farms, markets

...s that died at Erkhel Lake in the Kovsgol province near the Russian border. A joint WCS-Mongolia team that was working in western Mongolia immediately went to the site to collect more samples that will be sent to the United States Department of Agriculture for further testing to determine the strain. The...

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