Tag: "artificial" at biology news
Don't stand so close to me: A new view on how species coexist
...tories." The London researchers assembled a simple artificial
community of parasitoid wasps within a computer model, and then watched what happened over very long periods of time - up to 100,000 generations. Parasitoid wasps, insects that kill other insects by laying eggs in them, account for a fifth of all kno...
Daphne Koller named MacArthur Fellow
...nd have far-reaching implications in the fields of artificial
intelligence and biomedical and genetic data analysis. A significant contribution of Koller's work is the expansion of Bayesian networks -- reasoning frameworks that deal with uncertainty -- by showing how they can be organized into logical, obje...
Story tips from the Department of Energy's Oak Ridge National Laboratory, October 2004
...atory move researchers one step closer to creating artificial
cells and manmade interfaces that could one day be used to treat diseases and perform other tasks at the cellular level. In a paper to be published in an upcoming issue of Nano Letters, Mitch Doktycz and colleagues at ORNL and the University of Tenne...
Acoustics meeting in San Diego
...itute ( firstname.lastname@example.org ) will investigate using artificial
sonar systems to detect manatees, which are frequently killed in collisions with boats (3aAB6). EXTREME SONO-EFFECTS New science and applications continue to emerge from the process of aiming intense ultrasound at liquid tanks to create collapsed...
Study in Royal Society journals presents evidence for inherited factors in homosexuality
...is current interest in making membranes containing artificial
channels for desalination and filtration. Contact: Professor AE Hill, Physiological Laboratory, Cambridge University, Downing Site, CAMBRIDGE, CB2 3EG...
Touching research: How white blood cells navigate
...governed by physicians. The engineers are building artificial
systems to simulate the subtle forces on blood cells; they're developing computer models that simulate how blood cells get buffeted about by other cells in the circulation; and they use the tiniest of tools to measure how cell-like beads stick to sur...
Immune system in a bottle could help prevent flu vaccine shortage
...grow spare parts for our bodies, or even an entire artificial
immune system in a bottle. An immune system in a b...mune system in a bottle. Scientists can study the artificial
immune system to see how it reacts to biological hazards and their countermeasures, and use the data...
Stimulating nerve cells with laser precision
...at Vanderbilt University have brought the day when artificial
limbs will be controlled directly by the brain considerably closer by discovering a method that uses laser light, rather than electricity, to stimulate and control nerve cells. The researchers have discovered that low-intensity infrared laser lig...
Common household fragrances may be harming aquatic wildlife, study finds
... by industry. Their goal was to determine if these artificial
fragrances affected the animals' "xenobiotic defense system"--a biochemical process that allows cells to get rid of poisons and other foreign substances. "This is the first line of defense used by all cells," said Epel, the Jane and Marshall Steel J...
Tufts Veterinary School scientists decode Cryptosporidium genome
...te TU502, Tufts scientists constructed a bacterial artificial
chromosome library for this research project. "This library is important for building a scaffold of the genome, on which the smaller sequence assemblies are aligned," said Giovanni Widmer, PhD, associate professor in Tufts' Department of Biomedical S...
Sea change: Skeletons of ancient corals different from today's
...ne along various parts of the ocean floor. "The artificial
seawaters were created by adding different concentrations of salts as calculated by Lawrence Hardie," Ries said. "I specifically wanted to test how modern corals respond to the ancient levels of magnesium and calcium because these chemicals, along wi...
Story tips from the Department of Energy's Oak Ridge National Laboratory
...lastics and coatings for surgical implants such as artificial
hips and knees. ORNL's Mechanical Characterization and Analysis User Center participated in acquiring the instrument. Funding is provided by the Department of Energy's Office of FreedomCAR and Vehicle Technologies and the High Temperature Materials L...
How running made us human
...ieties that are highly dependent on technology and artificial
means of transport," he adds. "But if those scientists had been embedded in a hunter-gatherer society, they'd have a different view of human locomotor abilities, including running." Why Did Humans Start Running? The researchers do not know why ...
How receptors govern inflammatory pain
... when the researchers used chemicals to induced an artificial
inflammation in the paws of the deficient mice, they found significant differences in responses between the two mutant mouse strains. The strain with increased permeability of their AMPA channels was significantly more sensitive to heat or mechanical...
Researchers discover defense mechanisms in some plants believed bred out by humans
...n defend themelves--to reengineer the plants in an artificial
setting to enable them to do what they could originally do: survive on their own. ...
'Blind' cells see the light; maybe someday humans will, too
...asic questions, Trauner said. "Once we insert this artificial
light-sensitive channel in a nerve cell, it opens ... Trauner are most excited about the possibility of artificial
vision, however. "We created a method for making light-regulated channels that are stably light sens...
Purdue researchers align nanotubes to improve artificial joints
...- Researchers at Purdue University have shown that artificial
joints might be improved by making the implants ou...n are found on conventional materials used to make artificial
joints. The smaller features also stimulate the growth of more new bone tissue, which is critical fo...
Spider silks, the ecological materials of tomorrow?
...wound-closure systems and plasters, and to produce artificial
ligaments and tendons for durable surgical implant... assembly processes could allow the manufacture of artificial
spider silks with special characteristics such as great strength or biochemical activity. "The futur...
Computer analysis shows scientists could reconstruct the genome of the mammalian common ancestor
...o test the reconstruction process, they created an artificial
set of mammalian genome sequences for which the an...o is the first author of the paper, generated this artificial
evolutionary tree by creating a massive software program to simulate all the known processes that mo...
New study discovers why 'persister' cells never say die
...edical devices, such as mechanical heart valves or artificial
joints. They can also take the form of periodontal disease, ear infections or fatal lung infections. The infection can be nearly impossible to eradicate, requiring implants to be removed at great risk and cost. Deleting or deactivating the HipA gene...
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