Study: Sticking to the sand might not be such good, clean fun for beachgoers
... ran filtered water from Monterey Bay over columns packed with the sand they had collected. What they found confirmed their hypothesis: The concentration of bacteria in the sand decreased, while its presence in the seawater increased after it flowed through the sand samples. The team then returned to Lo...Disabling a sensory organ prompts female mice to act like male mice
...pocket in the nasal cavity of many animals that is packed with receptor cells. It is the key detector of pheromones, chemical signals that elicit specific behavioral responses in certain animals, including mice. The researchers found that female mice whose vomeronasal organs were genetically disabled beha...Synthetic adhesive mimics sticking powers of gecko and mussel
...ng. Each gecko foot has a flat pad that is densely packed with very fine hairs that are split at the ends, resulting in a greater number of contact points than if the hairs were not split. (The diameter of one of the split hairs is as small as 200 nanometers.) More contact points between hairs and surface r...Stem cell specialists face questioning
... Manchesters Faculty of Life Sciences. We have a packed programme of speakers lined up over the next few days culminating with the Question Time event on Wednesday where people outside the field can take part in a full and frank debate of the issues surrounding stem cell research. Among the speakers at ...Pairing nanoparticles with proteins
...ic electrodes. But making single layers of densely packed enzymes, the functional part of such catalytic electrodes, has been a challenge. This new research shows that precisely engineered gold nanoparticles can be used to "glue" enzymes together to form oriented and ordered single layers, and that these mo...Ice Age extinction claimed highly carnivorous Alaskan wolves
...y large mammals at the end of the Ice Age may have packed an even bigger punch than scientists have realized. To the list of victims such as woolly mammoths and saber-toothed cats, a Smithsonian-led team of scientists has added one more: a highly carnivorous form of wolf that lived in Alaska, north of the i...Researchers develop buckyballs to fight allergy
... responsible for causing allergic response and are packed with granules containing histamine. They are present in nearly all tissues except blood. When mast cells are activated, inflammatory substances such as histamine, heparin and a number of cytokines are rapidly released into the tissues and blood, prom...In nature, proteins sweep up nanoparticles
...es were arranged in dense aggregates. Such tightly packed metal sulfide formations are not new to scientists, but they do beg a question that remains unanswered: Why do the nanoparticles group together" Something so small should disperse throughout the mine. Instead, the metal nanoparticles form blobs that ...UVa-led team uncovers important secret in gene replication
...omatin (the material that makes up chromosomes) is packed at different points of the chromosome that is critical. Where chromatin is packed more loosely, the genes are replicated earlier than other genes and are expressed at high levels. Wh...ESA's water mission instrument passes test program
...he MIRAS instrument is now in the process of being packed up for delivery to Thales Alenia Space (formerly Alcatel Alenia Space) in Cannes, where it will be joined with the PROTEUS platform to form the entire SMOS satellite. Now confident that the instrument will survive the rigors of launch and its lifetim...Crammed with charged DNA, pressure rises inside virus
...al calculations. They say this may be because the packed DNA is less ordered than assumed in the calculations. ...Molecular motors may speed nutrient processing
...ould the microvillus have this beautiful structure packed with motor proteins. The concentration of myosin m...the intestinal brush border" the layer of densely packed microvilli from the intestines of rats or mice, and added ATP, the chemical fuel for myosin-1a. Thr...Some forest birds can survive in agricultural countryside with limited habitat conservation
...156 birds during the study. "We had a Pathfinder packed with 10 people and gear," he recalled. "A couple times we had people hanging onto the outside. It's lot of fun." The researchers encountered a few surprises during the study. One assistant tracked a slow-moving radio signal to the forest floor, a s...Oregon researchers involved in new Clovis-age impact theory
...on watching, detailed the theory May 19 to a fully packed UO classroom, where students and faculty members from archaeology, art history, anthropology, biology, geology, geography, political science and psychology, pelted Kennett with questions. The researchers propose that a known reversal in the world's...Scientists identify prion's infectious secret
...that have died from prion infections are literally packed with amyloid clumps.) In order to glean insights into the mechanics that enable amyloid formation, Peter Tessier, a postdoctoral scientist in Lindquists lab, used peptide arraysglass slides covered with thousands of tiny protein fragments. Traditi...Essential genes cluster clue to order in the genome
...ther chromosomes) is that it had all these densely packed essential genes," said Justice. With the aid of...omosome has remained intact is that it has densely packed essential genes. If the chromosome broke anywhere, the organism would not develop," she said. The ...Low-energy LED lighting project is streets ahead
...draw on their expertise to investigate how tightly packed groups of LEDs can be made to work safely and reli...ssues such as the amount of heat generated by LEDs packed closely together. As the LED modules will be used outside, academics will need to consider environ...Scientists unravel clue in cortisol production
...hing they found was that because DNA is so tightly packed in the nucleus, SF-1 can't bind to it until it's unpacked by a group of proteins. Once that happens, SF-1 binds to the genes, beginning the process that makes CYP 17 and ultimately cortisol. But it's not a continuous process, they found. "Once SF-1...First international conference on self-healing materials
...of. Whites is possible with concrete, which can be packed with small globules of dry cement. Should a crack appear in the concrete, the globule opens and reacts with water from its environment, so that the crack is nipped in the bud. TU Delft has devoted considerable attention to the topic of self-healing m...... Stallmann-Jorgensen says. Instead, most days were packed with starches, salty snacks, soft drinks and "fruit-ades" such as lemonade that didn't actually contain fruit juice. "Eating habits formed during our youth tend to stay with us into adulthood, so this does not bode well for prevention of chronic...