Race Plus Roaches: A Breathtaking Link
...ban or suburban, he says. Older homes, or those in crowded areas, give cockroaches a fertile breeding ground. The domestic cockroach has been identified as a source of indoor allergen worldwide, both in temperate and tropical climates. Although more than 60 species have been identified, the most common in N...3-D Structure Of HIV Components May Pave The Way For New Anti-AIDS Drugs
...nstitute. Like a father recognizing his child in a crowded classroom, nucleocapsid plucksfrom the infected cellular melange only the specific viral RNA needed to formnew viral particles. Nucleocapsid recognizes and binds to only the few RNAstrands that contain a site called the packaging domain, said coauth...MSU Scientists Eavesdrop On Bacterial
...l all floatoff and starve to death." Or, "It's too crowded here. Let's colonize somewhereelse." Bacteria, in fact, do speak a chemical language, and scientists atMontana State University and elsewhere have reported discovering the first fewwords that govern the growth of bacteria in sticky clusters ...40 Percent Of Deaths Are Environmental
...ces at Cornell. "More and more of us are living in crowded urban ecosystems that are ideal for the resurgence...breed in old tires and other water-holding junk in crowded urban environments, infects an additional 30 million to 60 million people each year. -- Less than 1......ue persuasively for including nutrition in already crowded medical school curricula and, even more importantly, serve as physician role models for incorporating nutrition into patient care. A new consortium of the nation's major professional nutrition societies, especially those with a large physician...Rapid Population Growth Is Still A Problem
...cil vice president JohnBongaarts. "In the already crowded developing world, despite plummetingfertility rates, both the number of births and population size will keepgrowing. The expected addition of several billion more people will hamperongoing efforts to reduce poverty and achieve sustainable developmen...UF Scientist Seeks Super Sea Oats
..., in the last 30 years,residents have increasingly crowded the coastline. "Dunes are the front line of defense from wind, water, tropical storms andhurricanes. The plants found on the dunes anchor the sand, decrease winderosion and deflect wave action," Kane said. "Without the dunes, the damagethat would occ......od. People of lowsocioeconomic means who live in a crowded household where there is a great dealof sharing and potential exposure to blood may also be at increased risk." For those at risk, specific blood tests for the hepatitis B and C viruses shouldbe performed because routine lab work typically measures t...Life under the waves can get pretty crowded when you are a sea squirt vying for space on the rocks. But these sea creatures have a novel weapon-they use their sperm to sabotage the eggs of other kinds of sea squirt. According to a marine biologist in California, this may be the first example o...How stress maintains population levels
...t rapidly where the birds sleep together in large, crowded roosts, quite often among populations that do not make regular use of bird feeders. Dhondt emphasizes that mycoplasmal conjunctivitis cannot be transmitted to humans. And he hopes that more citizen-scientists will join Project FeederWatch to help ...Neuronal choir hums in unison to rivet brain's attention
In a crowded room of people talking, a few voices singing in unison will quickly drown out the noise. NIMH scientists have discovered that the brain uses a similar principle to enable its neurons engaged in critically important tasks to win out over neurons ess...Why monkeys don't hear as well as humans
... "Air molecules are like people moving around in a crowded room at a cocktail party. The warmer it is, the more molecules - or cocktail guests - run around, and it creates noise. With this random noise, it's harder to hear an individual conversation." So that's what the average monkey is faced with - a lo...Super hearing in flies may improve hearing aid technology
..."Even humans trying to detect who is speaking in a crowded room can't do better than that," notes Mason. See www.scar.utoronto.ca/~amason/movie/flyball2.mpg for a demonstration. The flies have only about 100 nerve cells in each ear, compared with thousands in the human ear. Other experiments by Mason...Fly on a treadmill demonstrates super directional hearing
... Even humans trying to detect who is speaking in a crowded room can't do better than that. "When you consider the size difference between humans and flies, Ormia flies are the real champions," Hoy says, describing a mechanical linkage between the fly's closely spaced eardrums as something like a playgroun...Laser technique examines movement in nucleus of living cell
.... A living cell is a very complex reaction vessel, crowded with proteins and other large molecules that must move around and interact, Bardeen said. If we try to take a cell apart and examine its constituents, we find they no longer behave as they do in intact, living cells.To non-invasively measure chromat...View of forest insects changing from pests to partners
...ole in keeping them healthy. When trees became too crowded the insects would eliminate weaker trees and reduce competition. But since the beetles' reproductive pheromones only carried effectively about 15-20 feet, naturally open stands of mature pines were protected against widespread outbreaks. In these sa...... difficult to see individual components within the crowded sample, whereas large quantities of dye may interfere with cell-virus interactions, possibly distorting natural, physiological events, he added. The teams of Bruchle and Hallek used a more sensitive fluorescent microscopy system, capable of measuring...UNC botanist spearheads ongoing effort to curtail movement of pest plant species
...ed as hedges throughout the South that escaped and crowded out numerous indigenous species. Privet has formed impenetrable thickets and become almost the only plant in the understory of many Southern bottomland forests. Another is the Brazilian pepper, which transpires so much water into the atmosphere, com...Study suggests global extinction crisis more serious than previously thought
...ulation extinctions have been most frequent in the crowded Eastern states. In contrast, extinctions have been common around the lightly populated Sahara in Africa, presumably due to a combination of hunting by local people and sport hunters, competition with livestock and desertification. Understandably, Aus...Cocaine use in warm environments impairs body's cooling mechanisms -- and can be lethal
...n taken in warm environments, such as hot weather, crowded nightclubs or rave parties all-night dance parties where illicit cocaine use is common according to researchers at UT Southwestern Medical Center at Dallas. The researchers discovered that cocaine elevates body temperature by impairing the body's a...