Research team unlocks secrets of the firefly flash
...situation changes dramatically when a nerve signal arrives and stimulates cells to begin producing NO. This gas quickly reaches the mitochondria clustered just inside the nearby photocytes, and brings the process of mitochondrial respiration to a screeching halt. No longer used up by the mitochondrial gateke...USGS issues wildlife health alert for foot-and-mouth disease
...k should the disease arrive in the country. If FMD arrives in the United States, it will most likely be found first in domestic animals, Wright said. Because FMD is highly contagious among cloven-hoofed animals, ungulate populations found in the area of FMD outbreaks could become targets to control further s...Nanofabricated 'gel' separates DNA
...lysis: As a band of strands of a particular length arrives at the end of the channel, it can just be drawn off. Extracting samples from an organic gel requires complex chemical separation....Fall Meeting: updated press conferences and special events
...n board. Geology talk along the way. 12:45 PM. Bus arrives at the Marine Facility. Participants are split into two groups. 1:00 PM. Polaris departs with Group A for 90 minute cruise. Orientation for Group B at USGS Marine Facility. Participants split into 2 smaller groups. 1:05 - 1:40 Presentations in salo...Scientists dissect bacterial crosstalk
...t of the gut and feeds on asugar called fucose. It arrives early in a mammal's life, paving the way forother friendly microbes. Using germ-free mice, Gordon's group previously showed that cells lining theintestine make fucose, posting the sugar on the cell surface. At weaning, fucoseproduction stops. But it...Astronauts blame their space station symptoms on bad air
...onitoring equipment before the firstpermanent crew arrives at the station sometime after March next year....X-Ray Concentrator Will Expand Window On High-Energy Universe
...ut no optical system passes all of the energy that arrives at theaperture. Test flight The technology of capillary optics is relatively new, having been conceived inthe Former USSR in the 1980s. "Any new technology takes a while to become commonplace," Joy said. That isstarting to happen, and NASA/Marsh......precipitation isless than 12 inches, most of which arrives as snow in winter. The temperature,pressure, and low humidity are similar to conditions at Earth's south poleduring the austral summer. "The White Mountain summit is just the first of many extreme environments weplan to explore through Life on the E......in sealed containers until a Progress supplymodule arrives with fresh supplies. Waste is then transferred to the module,which burns up and disintegrates as it re-enters the Earth's atmosphere. ButProgress modules only call about twice a year. Meanwhile, stored waste builds upon the station, taking up valuabl......nto muscles, bone, and other tissues). The command arrives via a potent messenger protein, Sonic hedgehog. Once formed, the floor plate then induces motor neurons to develop on either side (motor neurons will ultimately relay information between the spinal cord and muscles). The challenge The Nature paper...