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Tag: "high" at biology news

Roche clinical trial registry and results database launched

... peer review is a key prerequisite for maintaining high ethical standards in Roche’s clinical trials and development activities. In addition, Roche adheres to the “Declaration of Helsinki? a statement developed by the World Medical Association on ethical principles to provide guidance to physicians and ot...

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

...cently died at a zoo. Preliminary results reveal a high density of Pacinian corpuscles in the front of the foot and along the edges--a finding consistent with the notion that elephants are sensing seismic signals when they press their feet on the ground. O'Connell-Rodwell also is applying her insights in...

Anammox bacteria produce nitrogen gas in oceans' snackbar

...e combination of microbiological methods involving high resolution nutrient profiles, experiments with stable isotope labeled nutrients, depth profiles of unique membrane lipids (ladder molecules), fluorescence microscopy and DNA analyses of water samples was used to proof the abundance of anammox bacteri...

Turning viruses into allies against cancer

...rotherapy. "These results clearly demonstrate the high potential of this modified virus to serve as a nov... the human hepatocellular cancer cells resulted in high uptake of the radioactive iodine at the tumor site," said Blechacz. "This provides the possibility o...

Researchers discover underwater volcano

... ever student-to-student videoconference between a high school and a research vessel with the help of HiSeasNet, a satellite communications system that provides continuous Internet connectivity for oceanographic research vessels at sea. ...

Novel gene-silencing nanoparticles shown to inhibit Ewing's sarcoma

...ility to deliver these bits of genetic material in high concentrations to specific tumor sites, while avoiding degradation. To overcome these hurdles, the scientists employed a sugar-containing polymer invented by chemical engineers at the California Institute of Technology. For this experiment, the poly...

Researchers find promising cancer-fighting power of synthetic cell-signaling molecule

...then not in the whole animal, or have unacceptably high toxicity for normal tissues," said Georgia Tech Professor of Biology Al Merrill. "Finding that Enigmols are effective in three animal models leads us to hope these may be a new approach to treat cancer." However, human trials must still be done to de...

New project aims to make large-scale lobster farms feasible

... an ideal target for commercial culture due to its high value and limited availability from wild capture, ..., anchored in 100 feet of water, are about 50 feet high by 80 feet in diameter, making for a total of 12,000 square feet of lobster larvae-snagging surface ...

Agilent Technologies releases probe sequence, annotation information for all its commercial gene expression microarrays

...ccessible to any researchers who want to achieve a high degree of sensitivity and precision in their experiments. ...

Virus-host interactions at sea effect global photosynthesis

...ccessible to any researchers who want to achieve a high degree of sensitivity and precision in their experiments. ...

Measuring hormone cuts antibiotic use in half in pneumonia patients

... were not given antibiotics. The remaining 85% had high levels and were started on antibiotics. The researchers measured their procalcitonin levels four, six and eight days later, and discontinued their antibiotics if their levels were low. Patients in the procalcitonin group who started on antibiotic tr...

B-15A collides with Antarctic ice tongue

...ccessible to any researchers who want to achieve a high degree of sensitivity and precision in their experiments. ...

New World founders small in number

...'s estimates are more recent, they also indicate a high probability at this time period. With this new approach, researchers will be able to explore this and many other questions to fill in the details of the first American immigration. Citation: Hey J (2005) On the number of New World founders: A popula...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

...n normal cells. However, because cancer cells have high levels of telomerase activity, which rebuilds the telomeres, cancer cells can maintain the length of their telomeres indefinitely. Although it is not known whether telomerase activation is just a marker for cancer cells or involved in causing it, tel...

Undesirable expatriates: Preventing the spread of invasive animals

...mmon. The bottom line-- vertebrate animals have a high rate of invasion success. Once established, they can act as biological pollutants that result in ecological and economic damages. "The best way to combat invasive species is to prevent them from being introduced. As global trade increases, precaution...

Marine sponge yields nanoscale secrets

...se of caustic chemicals, whereas man must use very high temperatures, high vacuums, and dangerous chemicals requiring costly remediation. Although the reported research marks...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...te region of the brains of songbirds, known as the high vocal center, controls their singing behavior. It ... new study, the researchers looked at cells in the high vocal center region of the brains of 19 zebra finches, a kind of songbird native to Australia that h...

Friendly bacteria in humans may protect against HIV

...y trapped the virus and blocked infection. Due to high rates of mutation, repeated attempts at developing a vaccine to protect against HIV have failed. Inoculating the major mucosal surfaces where HIV transmission occurs with the HIV-capturing lactobacilli may provide a safe and cost-efficient method for...

Road salt affects mitigation wetlands

...w Orleans. "We recorded peaks during the winter as high as 10 to 12 parts per thousand in the runoff wetland and 2.5 to 3 parts per thousand in the other affected wetland." Freshwater has zero salinity, while seawater has a salinity of about 28 parts per thousand. Silver has also tested all six wetlands ...

Migratory songbirds have a specialized night-vision brain area

...that the night-migratory species showed strikingly high activity in a particular cluster of cells located adjacent to a known visual pathway. According to Jarvis, what excited the researchers was that the area, which they named Cluster N, was not active in the migratory birds during the daytime. Furthermo...

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