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Tag: "record" at biology news

Proposal would allow wild animals to roam North America

...art, with each step carefully guided by the fossil record and the involvement of experts and research. "We are not advocating backing up a van and letting elephants and cheetahs out into the landscape," said Donlan. "All of this would be science driven." A pilot study will test the rewilding notion by rel...

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

...authors write. "To our knowledge this is the first record of an ant using formic acid as a herbicide--although it is known to have bactericidal and fungicidal properties." The ants employ a very effective system of lethal injection, notes Gordon, associate professor of biological sciences at Stanford. "The...

Researchers create functioning artificial proteins using nature's rules

..."The rules we have extracted from the evolutionary record of proteins contain a substantial fraction of the ...y discovered "rules" gleaned from the evolutionary record by feeding them into a computer program they developed. The program generated sequences of amino aci...

New technique could alter field of mouse genetics

...oked and acted differently and it had a good track record in a range of insects. In their experiments, piggyBac incorporated itself into many chromosomes in human and mouse cells. It also carried other genes effectively. Inserted into mouse embryos, the transposon and its cargo was inherited through five g...

Scientists use gene transfer technology and common virus to block neuropathic pain in animals

...inal cord. He also emphasizes the excellent safety record of the HSV vector, which has produced no side effects or complications in many animal studies. “I am a clinical neurologist and I see patients with neuropathic pain,?Fink says. “These patients suffer tremendously and the treatments available to us n...

Retina adapts to seek the unexpected, ignore the commonplace

...s from the eye to the brain. These cells generally record local spatial differences and changes over time rather than faithful renditions of momentary scenes. Scientists had interpreted this as a form of predictive coding, a strategy shaped by the forces of evolution in adaptation to the average image struc...

Skull study sheds light on dinosaur diversity

...tion of wide gauge tracks everywhere in the fossil record at the end of the dinosaur era." Wilson wonders if the change in locomotion---from typical sauropod narrow-gauge walking to titanosaur wide-gauge walking---corresponded to lifestyle changes, such as different feeding habits. But without skulls to stu...

New tooth enamel dating technique could help identify disaster victims

...l. Scientists can relate the extensive atmospheric record for carbon-14 to when the tooth was formed and calculate the age of the tooth, and its owner, to an accuracy of within about 1.6 years. "Unlike most other tissue, dental enamel doesn't turn over," said Bruce Buchholz of LLNL's Center for Accelerator...

Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery

...ree arms, a computerized brain and a glowing track record in helping to repair heart valves, remove cancerous prostates, bypass blocked coronary arteries and perform gastric bypass operations for morbid obesity. The new arrival is a robotic machine, the da Vinci Surgical System, manufactured by Intuitive S...

Screen all at risk for HIV, plus pregnant women

...ree arms, a computerized brain and a glowing track record in helping to repair heart valves, remove cancerous prostates, bypass blocked coronary arteries and perform gastric bypass operations for morbid obesity. The new arrival is a robotic machine, the da Vinci Surgical System, manufactured by Intuitive S...

FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk

...ree arms, a computerized brain and a glowing track record in helping to repair heart valves, remove cancerous prostates, bypass blocked coronary arteries and perform gastric bypass operations for morbid obesity. The new arrival is a robotic machine, the da Vinci Surgical System, manufactured by Intuitive S...

India's smoking gun: Dino-killing eruptions

...agnetic fields frozen in the rocks. Volcanic rocks record information about the Earth's magnetic field with ...d within two or three centuries of each other will record similar magnetic fields, explains Chenet. Longer than that and the natural changes in Earth's magnet...

Scientists use gene transfer technology and common virus to block neuropathic pain

...inal cord. He also emphasizes the excellent safety record of the HSV vector, which has produced no side effects or complications in many animal studies. "I am a clinical neurologist and I see patients with neuropathic pain," Fink says. "These patients suffer tremendously and the treatments available to us ...

Old drug shows new promise for Huntington's Disease

..." he predicted. "However," Massa cautioned, "the record of successfully translating drugs from animal to human use is not good." Clioquinol has shown promise as a potential treatment for Alzheimer's disease in recent studies in mice and humans. Apparently through chelation, it interferes with the creatio...

Vaginal gel may provide a new approach to HIV prevention

...safe. Compounds similar to them have a good safety record in humans, at least so far," Veazey says. "This study demonstrates that combination microbicides are feasible," says NIAID Director Anthony Fauci. "We need to build on these promising animal studies and move toward establishing the safety and effect...

Human brain is still evolving

...read of agriculture, settled cities, and the first record of written language. So, a major question is whether the coincidence between the genetic evolution that we see and the cultural evolution of humans was causative, or did they synergize with each other?" Lahn said that the geographic origin and circu...

Study shows big game hunters, not climate change, killed off sloths

... two events. He and his colleagues found the last record of West Indian ground sloths coincided with the ar...s must have been the decisive factor." The fossil record shows the people who arrived in North America were making sophisticated tools out of stone, bone and...

Researcher says flu responders can learn from 1918 epidemic

... newspaper accounts, historical archives, hospital record and military files to piece together an accurate historical portrayal of the outbreak and spread of the 1918 flu. Higgins also cold-called nursing homes in the state to locate individuals with recollections on the 1918 flu outbreak. What he's found,...

Hand sanitizer gel works

... tracked the families, phoning every other week to record how much hand sanitizer had been used, whether someone had developed a respiratory or GI infection, and whether the illness had spread to others in the home. The families given hand sanitizer had a 59 percent lower incidence of secondary GI illnesse...

Fresh water affected by salt from deicing roads

...t is surprising and significant that the long-term record shows that salinity concentrations are going up, even in places where the amount of salt applied has not increased. Concentrations are high in the summer, not just in the winter when salt is applied to melt snow, suggesting that salt is accumulating...

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