A 'private bandwidth' for communication in bats: Evidence from insular horseshoe bats
...by emitting long ultrasound calls mainly made of a constant frequency. Different rhinolophid species show different frequency values. It has been proposed that such differences are large enough to allow recognition of conspecifics. The study proved that in Sardinia, Mediterranean (Rhinolophus euryale) and ...New, more direct pathways from outside the cell-to-cell nuclei discovered
...ng cells through a microscope. "I am a patient and constant observer of living things," he says. "And I watch them all the time with no agenda in mind. Some people are window gazers. They stand in front of the window and just look. I do the same with cells." During one of Gavin's agenda-less cell-watching s...Smithsonian scientists show differing patterns of rainforest biodiversity
...fruit flies, the species makeup remained virtually constant for distances up to 950 kilometers. In contrast, upland rainforests sites at different elevations may share less than a fifth of their species, even if the plant species on which they live are constant. The group of international researchers worki...MIT team building robotic fin for submarines
...ts distinctive swimming motion, which results in a constant forward thrust with no backward drag. In contrast, a human performing the breaststroke inevitably experiences drag during the recovery phase of the stroke. Tangorra and others in the Bio-Instrumentation Systems Laboratory, led by Professor Ian Hunt...Report recommends off-site disposal of secondary waste
... escape into the environment. The system requires constant monitoring and frequent changing of the carbon beds. The committee found that on-site treatment of the carbon followed by its incineration has been problematic at best, and recommends that off-site disposal, decontamination, and destruction of the s...Scientists discover new way to study nanostructures
... 1973 Nobel Prize, Josephson predicted that when a constant voltage difference is maintained across two weakly linked superconductors separated by a thin insulating barrier (an arrangement now known as a Josephson junction), an alternating electrical current would flow through the junction (imagine turning on...Renewable energy wrecks environment
...s. More renewable kilowatts require more land in a constant or even worsening ratio, because land good for wind, hydropower, biomass, or solar power may get used first. A consideration of each so-called renewable in turn, paints a grim picture of the environmental impact of renewables. Hypothetically floodi...Charting ever-changing genomes
...s of DNA. With nowhere to run, plants are under constant threat from heat, cold, high acidity or salinity, or pathogens such as viruses and leaf-munching insects. In response, plants mobilize physiological and biochemical defenses that help them survive. We expected certain classes of genes to be highly va...Mild stress in the womb may worsen risk of cerebral palsy
...findings are consistent with growing evidence that constant stress, even minimal, can have a major impact on the quality of life, says Victoria Luine, PhD, distinguished professor of psychology at New Yorks Hunter College, who did not participate in the research. In the study, the scientists adjusted the no...Internal clock, external light regulate plant growth
...or on the paper. When the seedlings are grown in constant light, most growth occurs in the late afternoon. But when the plants were moved to a more natural light/dark cycle, growth shifted several hours to occur just before dawn. In nature, that is the time when water is usually most available. The resear...Gene variations directly link inflammation to an increased risk for lung cancer
...e damaging effects of inflammation. Over time, the constant damage of inflammation could lead to genetic damage and cancer, Engels said. The researchers believe their findings will provide the basis for further lung cancer research as well as a model for examining the nature of inflammation in other types o...Tough tubes -- Carbon nanotubes endure heavy wear and tear
...block decreased slightly, but soon stabilized to a constant value, said Jonghwan Suhr, an assistant professor of mechanical engineering at the University of Nevada in Reno, who received his doctorate from Rensselaer in 2005, and with Pushparaj contributed equally to this report. As the researchers continue...How fish punish 'queue jumpers'
...r fascinating discovery is that, in order to avoid constant fights and keep the social order stable, the fish seem to accept the threat of punishment and adjust their own size in order to avoid presenting a challenge to the one above them, she says. Social hierarchies are very stable in these fish and in p...Ground gas gizmo boosts brownfield building
...reholes on potential development sites and provide constant monitoring of harmful gases, such as methane, whic... example, one-off periodic measurements may show a constant concentration of methane in a certain area, which may stop construction taking place But through c...JCI table of contents: June 21, 2007
...nction in mice. This new animal model reveals that constant activation of AT1 leads to cardiac and renal fibrosis in spite of only a modest increase in blood pressure, and will be useful for investigating the role of angiotensin II in organs affected by some forms of human hypertension. Title: Gain-of-funct...Ossur's PROPRIO FOOT takes the Gold 2007 Medical Design Excellence Award
...nse for the next step. Acting. The AI transmits a constant stream of signals which instruct high-precision actuator technology to act and deliver optimal function. Expertise in real-time motion analysis for the foot was provided by Canadian company, Dynastream. The Medical Design Excellence Awards compe...Gannet population under threat from global warming
...et, a species known for its stable populations and constant breeding success. In a paper published in Marine Ecology Progress Series, Dr Keith Hamer of the Universitys Faculty of Biological Sciences reports that diminishing fish stocks around gannets natural habitats caused partly by an increase in sea tem...Research finds that circadian rhythms dominate all life functions
...le gene expression oscillates in mice exposed to a constant state of dim light or darkness, the groups of genes that typically oscillate together -- such as genes responsible for the function of an organ or a specific tissue -- are chaotic under this state and don't function as a group. Lack of orchestration ...Sleep deprivation affects airport baggage screeners' ability to detect rare targets
...31 healthy subjects, who participated in a 36-hour constant routine. A visual search task was administered every two hours. The subjects reported whether a target was present in a set of simultaneously presented distractors. According to the results, sleep deprivation induced a speed/accuracy trade-off, in...Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring
... Males, whether they are mouse or man, generate a constant supply of new sperm from self-renewing spermatogonial stem cells. Yauk, along with colleagues at Health Canada and McMaster University, studied the spermatogonial stem cells of mature mice that had been exposed to cigarette smoke for either six or 12...