News tips from the Journal of Neuroscience
...cac s and cac ts2 , showed that cac currents varied in their kinetics, displaying low- and high-voltage activation and both fast and slow inactivation. Interestingly, the currents were sensitive to T-type but not L-type calcium channel blockers. Calcium entry through cac -encoded channels was require...Phase III trials of cellulose sulfate microbicide for HIV prevention closed
... required. The safety studies in women and men varied in terms of control group (inactive sexual lubricant such as K-Y? Jelly or active spermicidal gel such as Conceptrol), frequency of use (once, twice, or four times daily), duration of use (6-14 days), sexual activity (abstinent or active), and HIV st...Huddling and a drop in metabolism allow penguins to survive the South Pole cold
...d, Antarctica. Light durations for the colony site varied from two to 11.5 hours. At the mid-point of the pairing period, between April 22 and May 5, 2001, five pairs of emperor penguins were captured and had devices ("loggers") surgically implanted to record the animals internal temperatures. Pairs were s...Chromium picolinate shows greater benefits in diabetes care than other forms of chromium
...teroid-induced diabetes. Although glycemic control varied by trial, all 15 trials showed improvements in one or more measurements of glycemic control, including fasting glucose, postprandial glucose, fasting insulin, postprandial insulin, glycated hemoglobin, or insulin sensitivity. The authors concluded t...Human skin harbors completely unknown bacteria
.... In each individual, the bacterial populations varied over time while revealing a core set of bacteria for each individual. "The predominant bacteria don't change much," says Dr. Gao. "But the more transient bacteria did change over time," she says. "What that suggests," adds Dr. Blaser, "is that th...EO Lawrence Award goes to 8 scientists and engineers
...$50,000. "These brilliant scientists and their varied and important research inspire us," Secretary Bodman said. "Their work reminds us of the importance of continued investment in science and the need for increased emphasis on basic research and math and science education programs." The Lawrence Awa...Free public events at the 2007 AAAS Annual Meeting
... Berkeley National Laboratory, the oldest and most varied of the multi-program research laboratories of the U.S. Department of Energy. While at Stanford University, his groundbreaking work in cooling and trapping atoms by using laser light led to the Nobel Prize in Physics in 1997, an honor he shared with t...Grizzly bears feast on diverse diet
...g in the foothills sheds some light on the animals varied diet and their activity pattern. Alberta bears h...s greatest during late spring, although the timing varied between foothill and mountain bears. Moose were the most common ungulate eaten by the bear (83 per c...Changes in west coast marine ecosystems significant
...ing," Chan said. "Although the low-oxygen zone has varied in intensity from year to year, 2006 saw an unexpected expansion and degradation in oxygen conditions. At least 3,000 square kilometers of the continental shelf along the Oregon coast were affected. "This latest hypoxic event," he added, "was off th...Birds found to plan for the future
...le to plan ahead to provide themselves with a more varied diet. The jays were consistently given a breakfast of peanuts in one compartment and dog kibble in the other. When the birds in the evening were offered both foods, they preferred to cache peanuts in the kibble compartment and vice versa to make sur......n understanding of future needs and a desire for a varied diet by hoarding peanuts in the dog food compartment and dog kibble in the peanut compartment. If they were caching for current hunger, they would not have discriminated between the types of food or the location of the cache. Professor Nicky Clayt...Antarctic marine explorers reveal first biological changes after collapse of polar ice shelves
...mals living on the sediment (epifauna) were highly varied as well, though far less abundant in the Larsen A and B areas perhaps only 1% animal abundance compared to sea beds in the eastern part of the Weddell Sea. In the relatively shallow waters of the Larsen zone, scientists were intrigued to find abun...Eavesdropping nuthatches distinguish danger threats in chickadee alarm calls
... indicated that the acoustic features of the calls varied with the size of the predator observed. Most typically chickadees change the dee-dee-dee note at the end of the calls, sometimes adding five, 10 or 15 dees. When the recordings were played back to other chickadees their response was related to the ...International Astronautical Federation joins project to protect World Heritage sites
...nitoring UNESCO World Heritage sites as unique and varied as the Great Barrier Reef and the Great Wall of China in order to provide early warnings of conditions that could threaten them, such as natural catastrophes, atmospheric contamination and changes in land use. The signing of the partnership between t...Tiny clue reveals new path toward heart disease
...ry heart disease. One SNP, in the kalirin gene, varied between individuals with heart disease and those without. The researchers repeated the same experiment in four additional patient populations, scanning the DNA of a total of 4,000 individuals, and turned up the same result. "This finding opens up ...... load. Importantly, the distribution of the weight varied in each instance. Female participants, of child bearing age (20-30 years old) were assessed walking at a constant speed carrying either a symmetric load, in the form of a weighted vest or a 5kg dumbbell in each hand, or carrying an asymmetric load, w...First impressions: Computer model behaves like humans on visual categorization task
...n system," Serre explained. "Animals are extremely varied in shape and size. Snakes, butterflies, and elephants have little in common, and the animals in the image may be lying, standing, flying, or leaping." The team organized images in different subcategories from full views of an animal head to far vie...Laser goes tubing for faster body-fluid tests
... measurements when samples of urine or blood serum varied in color. In previous experiments, Berger and his team had explored how a concentration of each chemical relates to the strength of Raman signal. It turned out the relationship is not a simple linear one. They were able to use that information for de...A changing climate for protected areas
...es in the three regions. Because the three highly varied regions represent many of the worlds ecosystems, it is likely that new protected areas must be created in most parts of the world.......otal conifer density and the types of tree species varied quite a bit depending on elevation, but the densit... animal species may also have benefits in terms of varied tree size, plant biodiversity, and wildlife habitat. "When left to natural regeneration in this re...