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Tag: "uniquely" at biology news

Envisat captures first image of Sargassum from space

...iled images of chlorophyll per unit area. MERIS is uniquely suited for this because it provides images of above-atmosphere spectral radiance in 15 bands, including three bands at wavelengths of 665, 681 and 709 nanometres in order to measure the fluorescence emission from chlorophyll a. Chlorophyll is the...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

...and other animal material in the soil. Also found, uniquely in this species, is a range of genes that allow it to attack the many insect and other small creatures that live in the soil. The ‘chitinases’ produced by these genes can degrade the casing of insects and small crustaceans. It is not only animals...

Corals -- More complex than you?

...r 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 a lot in...

Targeting sugar on blood vessels may inhibit cancer growth

...howed that modifying the action of heparan sulfate uniquely impacted the tumor vasculature, and in doing so, altered the growth rate of tumors prepared from lung carcinoma cells in the mice. "We theorized that by targeting the sugar, heparan sulfate, we could affect angiogenesis, which is the formation of ...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...al lacunae, small pockets inside bone tissue. This uniquely durable cellular housing allowed the scientists to look back in time at the size of 31 extinct species' genomes: By measuring lacunae in dinosaur and extinct bird specimens housed at Harvard's Museum of Comparative Zoology and at the Museum of the Ro...

Tracking sperm whales and jumbo squid

...Peninsula. "The central Gulf of California is a uniquely advantageous location to study the behavioral ecology of sperm whales and their squid prey," the authors wrote. "Sperm whales are abundant year-round and appear to feed heavily on jumbo squid, a species that is easily captured and amenable to tagging...

ConocoPhillips establishes $22.5M biofuels research program at Iowa State

...lt and rich traditions of research and service, is uniquely positioned to set the standard for biorenewables research, education and technology transfer," Geoffroy said. "Contributing to the development of the bioeconomy is directly in line with our mission: 'Create, share and apply knowledge to make Iowa and...

Liver regeneration may be simpler than previously thought

...ans. New processes may explain why the liver is so uniquely capable of renewal and repair after injury, the scientists thought. Karp's team considered two samples of mice. The first consisted of embryonic mice at various stages of development while the second was composed of adult mice to which two-thirds ...

New study may show how to forestall a fatal, virus-caused immune-system meltdown

...sing a newly developed protein-scanning chip and a uniquely capable computer database to examine the activation and deactivation of more than a thousand proteins in cells from guinea pigs infected with two different strains of Pichinde virus. Guinea pigs infected with one of the Pichinde strains experience no...

Researchers discover genetic cause for word-finding disease

...s explore not just what causes the disease but the uniquely identifying features of human language. That's a pretty big question," added Mesulam. MRI imaging of the brains of people with PPA shows the language part in the perisylvian region of the left hemisphere has shrunk. By comparison, Alzheimer's Dis...

Freeze! Scientists film proteins at work by freezing them at different states

...nate them. The enzyme studied by the team acts uniquely in bacteria and its counterpart in humans is more complex. Synthesizing an enzyme like the one studied through biomimetics is an exciting possibility for developing future drugs. In order to produce the film, the team used the ESRF-IBS “Cryobench?...

Neuron cell stickiness may hold key to evolution of the human brain

... concluded these CNSs "may have contributed to the uniquely human features of brain development and function." The paper is entitled Accelerated evolution of conserved noncoding sequences in the human genome. Co-authoring the paper with Rubin were Shyam Prabhakar and James Noonan of Berkeley Lab, and Svan...

How the brain weaves a memory

... both features--versus only color or location--was uniquely associated with enhanced activity in yet another brain region called the intraparietal sulcus, which has been strongly implicated in other studies as important in "perceptual binding" of multiple features of stimuli. Thus, the researchers concluded...

How mammals fuel milk production may have implications for cancer

...searchers said. The new findings show that Akt1 is uniquely essential for lactation and establish a role for the isoform in glucose metabolism, a function earlier linked almost exclusively to Akt2, they said. The findings may have important implications for cancer therapy, as the Akt pathway is also one of...

Scientists crack genetic secrets of human egg

...make a comparison that would show which genes were uniquely active in the human egg, they used RNA of all parts of the human body - exceptthat of the ovaries, where eggs are produced. Then the computer analysis began. In a highly sophisticated game of match, every gene in the egg that was found in other ti...

Sports cheats beware -- new test detects previously undetectable drug

...al fingerprint of the molecule ?a fingerprint that uniquely identifies it. "If the drug testing authorities adopt this new test it will close a gap in the current drug testing system, and mean that athletes will no longer be able to get away with this form of cheating," says lead author Mario Thevis, who w...

Unraveling where chimp and human brains diverge

...e us from our closest living relative ?and make us uniquely human. The Proceedings of the National Academy of... as those that regulate language, speech and other uniquely human abilities. ...

Climate experts search for answers in the oceans

...uired by satellite observations gives scientists a uniquely detailed view of the changing physical characteristics of ocean surfaces, but long-term series of satellite measurements are required in order to detect trends. The National Oceanographic Data Center (NODC), part of the United States?National Oce...

Engineer ramps up protein production, develops versatile viral spheres

...ll-free for the first time, but also have attached uniquely reactive amino acids to the capsid surfaces. Theamino acids allow the capsids to either stick to and carry specific proteins orstick to other capsids, allowing their assembly en masse. The tiny spheres could therefore transport targeted vaccines or...

Unique dual target specificity of kinase inhibitor key for success against cancer

...agents in glioma cell lines. One compound, PI-103, uniquely and potently blocked the growth of glioma cells. The cellular activity of PI-103 was traced to its ability to cooperatively inhibit both the p110á subunit of PI3 kinase and a downstream molecule called mTOR that also plays a critical role in cell gr...

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