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Tag: "shared" at biology news

FDA sees nanotech challenges in every product category it regulates

...pacity to safely manage nanotechnology must be the shared responsibility of Congress and our political leaders,” argued Rejeski. “The agency must be ‘nano-ready’ for the products on the market today and able to deal with the more advanced nanotechnology applications expected in the next 5-10 years.” “Many ...

Pesticides choke pathway for nature to produce nitrogen for crops

... More than 20 commonly used agricultural chemicals shared the same mechanism of action as PCP, but with varying amounts of signal disruption. Fox, McLachlan and colleagues, in their PNAS paper, pointed to two published studies from 2000 that had found significant declines in both crop yield per unit of ...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

... providing further evidence chimpanzees and humans shared a common ancestor five to six million years ago who had a similar level of cultural complexity. For years, primatologists have suggested different communities of chimpanzees across Africa vary in many behavior patterns, indicating they have cultur...

Breakthrough developments in rheumatoid arthritis reported

...e 1980s, Dr. Gregersen discovered that there was a shared bit of DNA that traveled in the disease. What took two years to identify in the laboratory – shared bands of genetic material – would take two days today. And that speed is what excites Dr. Gregersen....

Australian wins prestigious prize in biodiversity informatics

...op software tools into web-based tools that can be shared across the Internet. Sharing analytical software in this way promotes collaboration and cooperation among scientists and between scientists and policy-making agencies. Flemons understands the importance of the interplay between natural history c...

Study investigates 'divorce' among Galapagos seabirds

... energy to raise a chick and the responsibility is shared by both males and females. They raise one chick at a time. Parents incubate the egg for 43 days. Then, it takes another 100 to 120 days of parental care until the baby bird can fly. The parents will usually continue to provide some meals to the f...

Plants recognize their siblings, biologists discover

...ers and groups of siblings only occurred when they shared a pot, the root interactions may provide a cue for kin recognition.” Though they lack cognition and memory, the study shows plants are capable of complex social behaviours such as altruism towards relatives, says Dudley. Like humans, the most inte...

New designer lipid-like peptide with lipid nanostructures for drug delivery systems

... Zhang at MIT in Cambridge, USA in May 2006. They shared some ideas and decided to collaborate since Laggner is a world-expert on nanostructure using small angle X-ray scattering and Zhang can provide the designer lipid-like peptides that he has been studied since 2000. In the near future, many colloid...

Corals -- More complex than you?

...r 12 per cent of the known coral genes are in fact shared uniquely with vertebrates ?these are genes that have been lost from all other animals so far examined. These include genes for the development of nerves, vision, DNA imprinting, stress responses and key immune system genes. "We actually have quite...

Risk of lymphoma increases with hepatitis C virus infection

...erson through the exchange of bodily fluids -- via shared needles, open wounds, and sexual contact, among other means. HCV is also known to cause cirrhosis and liver cancer. "Although the risk of developing lymphomas is small, our research suggests that screening of HCV-infected individuals could ident...

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

...hat profits from mining in international waters be shared with developing nations—redirected prospecting and exploration of the seafloor into areas under national jurisdiction, where regulations are often weaker or non-existent. "The demand for metals is growing rapidly, and along with the sharp rise in ...

Cure for cancer one step closer

...solution images of tissue samples that can then be shared with researchers around the world, and two vapour phase nitrogen storage vessels (-196ºC) and two -80ºC freezers which have the capacity to house in excess of 164,000 tissue and blood samples. The small sections of tissue collected from patients w...

Scientists identify pancreatic cancer stem cells

...dies suggest that several stem cell markers may be shared by cancer stem cells in different tumor types, such as CD44 and CD133, but it is possible that each tumor cancer stem cell has its own set of unique markers," Simeone said. ...

Researchers identify gene involved in dog size

...genetic code. Nearly all of the small dogs studied shared this genetic variant, implicating it as a major influence on stature in dogs. Based on their genomic analysis, the researchers also concluded that the small size trait emerged relatively early in the history of domestic dogs. They hypothesize that...

New details on how the immune system recognizes influenza

... LIAI team found that while there were hundreds of shared epitopes among different virus strains, including ...rs ideal for multi-strain vaccines. Information on shared protective epitopes is important for developing influenza vaccines that can provide broad protection...

LIAI completes world's most comprehensive analysis on influenza virus data

... vaccine every year," Sette said. "If we can find shared epitopes, it may be possible to develop an influenza vaccine with greater cross protection for many different viruses." Sette said the study found hundreds of similar epitopes among the different virus strains. However, it remains to be seen wheth...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...he size of the main olfactory epithelium and isn't shared by all mammals. Mice, for example, have a septal organ. Humans do not. But in this study, Ma's group found that 50 percent of the cells in the main olfactory epithelium are sensitive to physical stimuli, suggesting that mechanosensitivity of the olfa...

Biologists prove critical step in membrane fusion

...les are hemifused ?a state where the membranes are shared but the contents remain separate. Using fluorescent dyes and a high-resolution microscope, the researchers show that hemifusion is surprisingly stable in live cells. "The novelty of these results is that a live cell can maintain a hemifused state ...

Bats prey on nocturnally migrating songbirds

...edatory specialization of the giant noctule may be shared by the few other big aerial-hawking bat species which exist elsewhere in the world. Are some of them similarly stalking unwary songbirds during their massive nocturnal passes? The foraging habits of these rare bats still remain quite mysterious, like...

Twin studies reveal genetic components leading to cardiac and kidney disease

...w that they run in families, not only because of a shared environment, but because they are determined in part by particular genes. "Behavioral studies with twins have been conducted for decades, but in the post-genomic era, we can now factor in genotypes and determine the effect of specific genes on tra...

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