Climate change plus human pressure caused large mammal extinctions in late Pleistocene
...imate change to lead to extinctions. In Europe and parts of Asia, mammals such as the giant Irish deer or Irish elk died out broadly toward the end of the late Pliestocene, in some areas before humans were present. Earlier, though, warm-adapted megafauna such as straight-tusked elephants (Palaeoloxodon) an...Researchers determine genetic cause of Timothy syndrome
...nd contraction of the heart, but its role in other parts of the body were less clear," said Keating. Studies of the pattern of activity of the gene for the channel in humans and mice revealed that it was expressed not only in heart muscle cells, but also in adult and fetal tissues of the brain, gast...Schepens Eye Research Institute receives 'Roadmap' grant to develop center for curing eye diseases
...underlying mechanisms at work in diseases in other parts of the body, like the heart and the brain. "While experts from these areas often collaborate informally on vision disease, ophthalmology has remained somewhat specialized and in some ways isolated from other disciplines. This is really the first fed...Study: Emission of smog ingredients from trees is increasing rapidly
...uced varieties have increased dramatically in some parts of the country, the study found. The increase stem...explain why ozone levels have not improved in some parts of the country as much as was anticipated with the enactment of clean-air laws, Purves said. Environ...Rice finds 'on-off switch' for buckyball toxicity
...buckyballs showed the highest toxicity -- about 20 parts per billion-- while the least toxic proved to be b...kyballs by 10 million times to more than 5 million parts per billion. "We're encouraged to see that controlling the surface properties of buckyballs allows u...'Smart antibiotics' may result from UCLA research
...y has been practiced for nearly a hundred years in parts of the world, and even in the United States in the first half of the 20th century. But now, we think we can engineer bacteriophages to function as 'dynamic' anti-microbial agents. This could provide us with a renewable resource of smart antibiotics f...Bullish chemical could repel yellow fever mosquitoes
...rries and transmits the yellow fever virus in some parts of the world. Evans and his group used a rhodium catalyst to aid the tricky synthesis of gaur acid, also known as bovinic acid. In doing so, the chemists also determined the exact chemical structure of the compound. Their approach is described in thi...Scientists discover potential new way to control drug-resistant bacteria
...y has been practiced for nearly a hundred years in parts of the world, and even in the United States in the first half of the 20th century," says Dr. Miller. "But now we think we can engineer bacteriophages to function as 'dynamic' anti-microbial agents. This could provide us with a renewable resource of s...Secretary of Energy announces seven E.O. Lawrence Award Winners
...hers have made ranging from engines with no moving parts to better ways to see the stars," Secretary Abraham said. "These awards, and the research for which they are given, show that DOE could easily be called the Department of Science and Energy." The winners are: Nathaniel Fisch, Princeton Universit...Study explores gene transfer to modify underlying course of Alzheimer's disease
...r's disease, the basal forebrain, and not to other parts of the brain where it may cause side effects. T... projections from that area reach out to all other parts of the brain, delivering the important neurotransmitter acetylcholine," said Arvanitakis. Until rec...The book opens on the first tree genome
...uild on that success and help deliver the poplar's parts list--and the clean energy and cleaner environment that scientists will produce using the genetic sequence of the poplar in the future." "Forest genomics is rapidly shaping how we do sustainable, intensive forestry," said David L. Emerson, Canada's M...UAF scientists discover new marine habitat in Alaska
...ons and comparing their structure and reproductive parts to a global database of known rhodolith species. "I believe we have at least two rhodolith species in the samples I received," said Riosmena-Rodriguez. "One species is Phymatolithon calcareum. This species is widely distributed in the North Atla...Binocular rivalry: Fulfilling visual expectations
...useful means of probing the workings of the visual parts of our brain: although an experimental visual stimulus is artificial, the brain is functioning in its usual way. Watson, Pearson, and Clifford used binocular rivalry to demonstrate the importance of feedback in our interpretation of the visual image....Study reveals why eyes in some paintings seem to follow viewers
...imes to find near points and far points on various parts of the torso. In a second task, they used a gauge figure (a circle with a needle sticking out) that had to be placed on the torso so it looked to be flat against the surface (The needle had to appear like it was perpendicular to the surface of the to...Students build submarine to track Octopuses
... have to take the dome off and expose the computer parts to salt air, but, of course, we immediately blew s...s to be adjusted on-site. Repackaging the computer parts will be the latest in a long list of modifications and redesigns that began with Shadow I in 1998. ...Cockroach-like robot leads new research effort
...s embodied in the robot, but we don't know how its parts - its legs, feet, actuators or muscles - sum up to give that remarkably general pattern of movement. "Now we can ask questions like, 'What if you had a more compliant leg? What if you had two joints in that leg, what does that give you versus on...Peering inside the body, with a new spinliterally
...ok at full bodies or zero in on specific organs or parts of tissues. Wind will continue to refine the technology, for which he recentlyreceived two patents, and PNNL will make it available for licensing. Asa precursor to studies in humans, Wind said, safety trails in animalswould be necessary to see how st...First glimpse of DNA binding to viral enzyme
...yme molecule. It appears like a strap, holding two parts of the protease together." Since the DNA binding site is quite long, there are numerous locations along it that could be used as targets for drugs to block the interaction and act as antiviral agents, Mangel said. The scientists have already ...Can an old gene learn new tricks?
...he recycling or redeployment of 'old' genes in new parts of the embryo, rather than through mutation of gene protein-coding sequence alone. Old genes can be given a new purpose through 'reassignment' to organs undergoing evolutionary advancement. The reassignment likely comes through a shuffling of existi......ions were very small, Lan says, in the range of 10 parts per million. Lan has a somewhat personal vendett...Lan says. "Mosquito-borne illnesses are endemic in parts of China. Malaria is a big problem in south-central China. South of the Yangtze River the infant mor...