UC Berkeley study shows gecko foot hairs are amazing dry adhesives
... billion spatulae, which look like broccoli on the tips of the hairs, are outstanding adhesives," said Full, a professor of integrative biology and head of the Poly-PEDAL (Performance, Energetics, Dynamics, Animal Locomotion) Laboratory at UC Berkeley. "Geckos have developed an amazing way of walking that...... span of cells - has the capacity to replenish the tips of chromosomes, known as telomeres, which lose the...in regulating the life span of a cell, because the tips of telomeres drop off chromosomes with each cycle of cell division.1 As the telomeres gradually shor......nimators from Pixar Animation Studios to give them tips on creating more realistic animal movement for their next blockbuster movie. Full consulted with Pixar on an earlier film, "A Bug's Life." "In classic locomotion research, everyone focused on the force pushing an animal forward. Power and efficiency ...Cloning reverses aging in cow cells, Scienceauthors say
...ar and tear on their telomeres, the regions at the tips of their chromosomes. Telomeres cap off the ends of each chromosome and keep their genetic threads from fraying and disappearing with each tug that happens when the cell divides itself again. Since most mammalian telomeres can't repair themselves, th...Life on land tied to gene expansion
...ng brain may have come to be expressed also in the tips of developing limbs, helping to bring about the development of toes and fingers in the first vertebrates. "So you get expansion of gene expression--not expression of a new gene--just expansion to a new area," says Dymecki, HMS assistant professor o......nsuming dairy foods, Savaiano offers the following tips to improve digestion of milk and dairy products: * Eat dairy foods in moderation, and avoid eating large amounts at one sitting. * Eat dairy foods as part of a meal, such as a cup of milk over cereal with fruit, or a glass of milk with dinner. * Ea...University of Chicago researchers uncover first steps in cell-cell adhesion process
...rapid polymerization of these fibers at the finger tips generates the force to project them into the membr... poking into a rubber balloon. Puncta form at the tips of these fingers," Fuchs explains. After puncta form, actin filaments begin to grow near the pu...Smell, taste may influence lifespan of the roundworm C. elegans
...aste correctly - either genes that make cilia, the tips of thesensory neurons that respond to substances in the environment, or genes that are required for the actof smelling and tasting. The altered worms could still smell and taste, but not as well as normal. Depending on the genes targeted, the roundw......y of specific foods along with menus, recipes, and tips for modifying favorite dishes. A Food Guide contains a list of more than 600 foods divided into four categories to help you select a satisfying lower-calorie diet. A menu planning section not only offers 50 recipes but also includes illustrated, step...New evidence pushes back age of sex-determining chromosomes
...ic material. The exception to the rule is that the tips of the X and Ychromosomes recombine during male meiosis in humans. Page's and Bruce Lahn's analysis of the sex-determining chromosomes, whichwas published in the October 29, 1999, issue of the journal Science ,reveals that four major genetic shuffl...Reduce calories, stave off hunger with water-rich foods -- not water
...ity-based eating plan and offer menus, recipes and tips for modifying yourfavorite dishes. As far as her current study of water is concerned, however, Rolls notesthat she doesn't want to discourage people from drinking water either before,during or after their meals. "Water is critical and...Damaged spinal cord found to have greater potential for nerve regrowth than thought possible
...ching the scar, but they change the shape of their tips and become 'dystrophic' with malformed endings. This is thehallmark of regeneration failure." Silver said, "The cell body of an injured nerve does try to regenerate its axon, but it gets stuck. The debate over the last twodecades has centered around ...'Cousin' Of Snake Venom Toxin Found In Mice
...s in the venom blockacetylcholine receptors on the tips of muscle nerves. Acetylcholine is aneurotransmitter that helps to activate muscles and causes them to contract.Most who are killed by venomous snakes die of respiratory failure because thealpha-neurotoxins shut down the diaphragm muscles, causing su...Researchers Analyze Role Of Shear In Turbine Passage
...t near the turbine blades and, mostespecially, the tips of the blades. In field tests at Pacific Northwest's aquatic facility, researchersintroduce fish individually through a tube above a water nozzle. As the fishleaves the tube and enters the pool, it encounters different water velocities,or sh...UT Southwestern Researchers Find Way To Control Gene Activity, Opening Way For Cancer Drugs
... the lifetimeof a normal cell. Once the protective tips of DNA are gone, the cells die. Allhuman cells have a gene for telomerase, but it is switched off in normal cells,except embryonic cells, so the enzyme is not manufactured. It is switched on intumor cells allowing them to divide uncontrollably and be...Story Tips: Engineering Students Pursue Cutting-Edge Research
...ientists in their fields. Following are some story tips based on a few of this year's Provost Awardprojects: A Robotic Submarine Two seniors majoring in mechanical engineering sunk their $2,500 research awardsinto a projectthat sinks literally. Omar Alquaddoomi, 20, of Glendale, Calif., and Adam Morris,...... chromosomesthat function in part like the plastic tips on the ends of shoelaces, preventingthe gene-beari... unraveling. With each cycle of celldivision, the tips of telomeres drop off, until the chemical bookends become soeroded that the chromosomes become unsta...News Tips Wednesday, March 24, 1999
...t our news releases, here are some additional news tips reported bythe American Heart Association for Wednesday, March 24. For more information,March 24-27, call Carole Bullock or Darcy Spitz at the Omni Rosen Hotel, Ph.:407-996-2410. Before or after those dates, call the AHA's News MediaRelations offic......e explanation. Normally, telomeres keepchromosomal tips from unraveling or sticking to other chromosomes. Deprived ofthese protective shields, chromosomes might fuse, break, or undergo otherchanges that could lead to the loss or gain of genes and, in turn, to cancer."So the studies teach us that if we los...... move auxinfrom its site of synthesis in the shoot tips to sites of action elsewhere in theplant. The direction of transport is from the shoot tip down to the tip of theroot. Scientists believe it is the movement of auxin that determines the shapeof the plant. The transport of auxin within the plant is a ...