Researchers help trace origin of Madagascars mammals
...o Madagascar, apparently floating across the ocean barrier aboard wayward vegetation about 24 million to 18 million years ago. Previously, scientists believed that Madagascar's seven living species of native Carnivora represented two to four separate lineages, which would have implied that these animals colo...Unique fleet of underwater vehicles to gather elusive environmental data
...he coast of Virginia. This bay serves as a natural barrier to man-made pollutants," Stilwell said. Separated from the Atlantic Ocean by barrier islands, Hog Island Bay is the site of a long-term NSF ecological study. However, researchers haven'...Researcher identifies North American hotspots for fish conservation
...lture, deforestation, coal mining, mine wastes and barrier dams is causing extinction and endangerment of aquatic organisms. I hope this analysis will help show where conservation activities and public education about rich fish biodiversity at risk should be concentrated."...New study clarifies connection of brain and heart failure
...in hindbrain and forebrain that lack a blood-brain barrier or by inducing the release of mediators that do pe...y act upon the CNS, either by crossing blood-brain barrier or by acting upon the circumventricular organs that lack a blood-brain barrier, their design and cli...UI study discovers cells segregate molecules to control signaling
...ingly simple but effective repair system in airway barrier cells. The UI study shows that by placing a messenger molecule on one side of the barrier and a receiver molecule on the other side, these cells have in place a repair mechanism that is pois...Rockefeller scientists identify 'natural' proteins that push stem cells to produce hair, not skin
...hed upward and differentiate to produce the body's barrier to keep harmful microbes out and fluids in. The cells that reach the skin surface are dead, and sloughed off, continually replaced by inner layer cells moving outward. "Every two weeks, the epidermis is nearly brand new," she says. Adult stem cells t...Powered by your liquor cabinet, 'biofuel cell' could replace rechargeable batteries
...of power. The typical approach to overcoming this barrier has been to immobilize the enzymes by attaching them to the electrodes, but they still tend to decay too quickly to be useful. Minteer and her colleagues coated the electrodes with a polymer that has specially tailored micelles pores in which the en...Termites repelled by catnip oil
... stores--to test the effectiveness of the oil as a barrier to termite tunneling. To test vertical tunneling, ...bottom of a test tube filled with sand. A two-inch barrier of catnip-treated sand separated the termites in the top layer of untreated sand from the pine. To t...Carnegie Mellon University chemists create versatile polymer brushes
...ymer brushes include coatings that would provide a barrier to prevent corrosive substances from penetrating and damaging a substrate. Matyjaszewski also has shown that these brushes can move in concert across surfaces, suggesting that they could make new lubricants in industrial settings. Organic brush polym...Catnip stops termites dead in their tracks
...il, and to test vertical tunneling, put a two-inch barrier of treated sand in the middle of a test tube full ...al tunneling, the researchers put a catnip-infused barrier of sand in a pan, and then put termites on one side of the barrier to see if the termites tunneled t...Wrinkle-free mice provide clues about obesity, wrinkles and hair growth
...ely culprit." During development, the skin forms a barrier to keep water from evaporating out of the body and...en earlier role in development. The skin's natural barrier cannot be made without lipids (a class of molecules that includes fatty acids), but it does not begi...Univ. of Pittsburgh Medical Center leads group buying PPL'S cloning, stem cell business
...hyperacute rejection, thus removing a major immune barrier between pig and human and making transplants from animals to humans more feasible. In January 2002, PPL announced the birth of pigs lacking one copy of this gene for the enzyme alpha1, 3 galactosyl transferase (alpha-gal), which adds a sugar to the s...Understanding obesity: New research examines how hunger signals work in the brain
...the message. This could be because the blood-brain barrier doesn't properly transport the leptin or because t... problem with communicating across the blood-brain barrier comes with increasing obesity and increasing obesity makes it more difficult for the brain and body ...Gladstone researchers find method to study hidden HIV reservoirs
...Journal. "The latent pool is considered to be the barrier to eradication," said senior author Eric Verdin, MD, senior investigator at the Gladstone Institute of Virology and Immunology and UCSF professor of medicine. "Our work is geared toward finding a way to obliterate this latent pool, which would take u...Male pregnancy in seahorses may affect formation of new species
...y of speciation is probably due to some geographic barrier to genetic migration. But in some instances it loo...in these relatively old events. Maybe a geographic barrier disappeared. The case for sympatric speciation will be stronger if we can find recent events someth...DuPont launches high-tech medical fabrics to enhance protection for healthcare professionals
...an extended time, and can lack the necessary fluid barrier for protecting today's healthcare professionals. Suprel TM nonwoven is the first in a line of upcoming medical fabrics from DuPont that are both highly protective and silky-soft. DuPont researchers created Suprel TM through a unique bi-component f...2003 ASM Communications Award goes to Milwaukee Journal Sentinel reporters
... conditions for these diseases to jump the species barrier Fauber has been a reporter at the Milwaukee Journal Sentinel since 1978 and is a graduate of the University of Wisconsin-Milwaukee. Johnson has worked for the Journal Sentinel since 2000 and is a graduate of the University of Toronto. He has also wor...Invasive species summit aims to halt Great Lakes-Mississippi River species exchange
... cleanup and maintenance. An experimental electric barrier designed to repel fish has been operating in the S...ature life stages can still cross the barrier. The barrier has a maximum service life of three years; a second barrier will be in place by fall 2004. But a bet...Summit generates possible solutions to exchange of invasive species in Midwest waterways
...nt to a healthy region. An experimental electric barrier designed to repel fish has been operating in the C...ature life stages can still cross the barrier. The barrier has a maximum service life of three years; a second barrier will be in place by fall 2004. Members ......ay be a consequence of a challenging physiological barrier to invasion at vents than at seeps. Moreover, diversity at vents is lowest where spacing between vents is extensive, suggesting that risks of extinction due to limited dispersal may be important in governing biodiversity in the deep sea....