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Tag: "happened" at biology news

Whole genome fine map of rice completed

...covering 65.7% of the genome. Among them, 17 pairs happened before the divergence of the grasses from other flowering plants. More importantly, the on-going duplications of single genes provided a unlimited source of raw materials for gene genesis, creating differences among the grass family. The Chinese Sup...

Research on Worms Yields Clues on Aging

...ed way at availablecompounds to see if any of them happened to have anti-aging activity."The researchers grew the roundworm C. elegans in the presence of the 19drugs and found that an anticonvulsant, ethosuximide, extended theworms' lives from an average of 17 days to an average of 20 days.Further tests on an...

The secret lives of whales

...t 50 to 100 years. Smith and his colleagues first happened upon a whale skeleton in 1987 while doing a deep-sea survey using the submersible Alvin. They were amazed to find hundreds of species of animals encrusting the bones. Some of these species were remarkably similar to the sulfur loving clams, mussels a...

New Clues Add 40,000 Years to Age of Human Species

...w humans dispersed to populate the globe, and what happened when, or if, modern humans encountered other hominid species in Eurasia. “For several decades, the Kibish fossils have been a key element in arguments for an ancient origin of modern humans in Africa, yet one for which the age and provenance of the ...

Experiments provide proof of how traveling in groups protects insects

...eviously it has been too difficult to monitor what happened to specific insects among untold millions. "With ...eep track of individual crickets and find out what happened to them when they were in the band and also when we removed them and put them in other locations by ...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...yan's group wanted to go deeper, and discover what happened to endocytosis when amounts of clathrin increased gradually. "The knock-out mouse model was just too blunt an instrument," he said. Instead, they came up with a whole new method of inquiry. It combined two pre-existing technologies -- RNA interferen...

Experiments provide proof of how traveling in groups protects insects

...eviously it has been too difficult to monitor what happened to specific insects among untold millions. "With ...eep track of individual crickets and find out what happened to them when they were in the band and also when we removed them and put them in other locations by ...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...e first time, too, the UNC researchers tested what happened when people cleaned their hands for only 10 seconds, Sickbert-Bennett said. That represented the average length of time researchers observed busy health-care personnel washing or otherwise disinfecting their hands at work. "Previous studies have had...

NC State scientist finds soft tissue in T. rex bones

...ssil. But the team was surprised by what actually happened when they removed the minerals from the T. rex femur fragment. The removal process left behind stretchy bone matrix material that, when examined microscopically, seemed to show blood vessels, osteocytes, or bone building cells, and other recognizable...

Low level of extinction during ice age linked to adaptability

...onset. "These results not only clue us in to what happened many millions of years ago, but they also have implications for understanding the modern marine ecosystem," said Matthew Powell, a doctoral candidate in the Morton K. Blaustein Department of Earth and Planetary Sciences at The Johns Hopkins Universit...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...cific part of the K2P1 channel, and that when this happened the channel was entirely silent. When a different enzyme removed the SUMO tag, however, ions began to stream through the channel. Understanding the role of sumoylation allowed the team to study the K2P1 channel for the first time. The channel is ope...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...eahen," Fisher noted. "But no one has studied what happened in the brain of the viewer, the individual that becomes attracted to these traits. Our study indicates what happens in the brain of the viewer as he or she becomes physiologically attracted to these traits." She added, "This brain system probably ev...

New project aims to make large-scale lobster farms feasible

...., discovered that lobster larvae by the thousands happened to be settling on large submerged cages the company uses to raise fish. The cages, 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 area. In 200...

NSAID drug protects against intestinal tumors in mice, despite poor diet and gene losses

...o an invasive state." Finally, they examined what happened when the knock-out mice were fed a Western diet enhanced with sulindac, an agent they had previously found help suppress tumor formation. To their surprise, none of the knock-out mice developed cancer. "To us this means that as long as an animal can...

Currents could disrupt ocean food chain

..." Schmittner said, "but the individual transitions happened surprisingly fast. The climate went from a cold state to a warm state in as little as 20 to 50 years. Surface temperatures in Greenland increased 20 to 30 degrees Fahrenheit and water temperatures increased 10 to 20 degrees." Schmittner said the imp...

Tsunami-damaged coral reefs should be left to recover naturally, say scientists

... Sri Lanka were badly affected by the tsunami that happened in December last year. The damage was mainly caused by the backwash ?waves returning to the sea that sucked back debris from the shore such as trees, cars, sediment and parts of buildings, which broke and overturned corals. The group recommend that,...

Major new UNC-based drinking water study suggests pregnancy fears may be overstated

...er use such as drinking and bathing and what later happened with their pregnancies and births. Among tests the women underwent were ultrasound examinations to collect more detailed information about their pregnancies. Researchers then, after adjusting for such factors as age, education, alcohol use and prior...

Map of life on Earth could be used on Mars

...ndents would have adapted to changes that would've happened in Mars's history." ...

Scientists inhibit cancer gene

...absence would cause more tumors to develop, as has happened with other DGKs we have tested. This time, though,...pham says. "This result is interesting, because it happened when the Ras gene was activated. The implication is that a drug therapy could be developed to reduce...

Neandertal femur suggests competition with hyenas and a shift in landscape use

...used," Trinkaus said. It's been assumed that this happened in the Upper Paleolithic which is associated with some very late Neandertals and early modern humans. However, this is a femur bone from a Middle Paleolithic Neandertal. It shows in the shape of the femur that a shift to greater mobility had already ...

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