Clones on task serve greater good, evolutionary study shows
...ping on an extra bit of sunshine or rain shower to grow taller affect the groups overall reproductive heal...adopsis families. All the offspring of plant A can grow up in near-identical environments, with pretty much the same water, sunshine and soil. But even in t...Newly created cancer stem cells could aid breast cancer research
...w chemically defined culture medium and managed to grow a different type of human breast cell that ordinar...ource of them, maintains Weinberg. Labs can easily grow the newly created cells for use in experiments. The study, which appears in Cancer Cell on August ...Circadian clock controls plant growth hormone
...nced by circadian rhythms. Auxin tells shoots to grow away from the ground and toward light and water. Charles Darwin conducted early experiments that showed how auxin affects plant growth. Most plants and animals have an internal clock that allows them to match their activities to the time of day or se...OHSU turns mouse into factory for human liver cells
...r mice could be genetically engineered and bred to grow human liver cells. Early results since 2004 showed it could be done, but the mice were difficult to breed, the time window for transplanting human liver cells into the mice was narrow, and the mouse liver, despite efforts to make the animal immunodef...Experiment suggests limitations to carbon dioxide 'tree banking'
...s with extra carbon dioxide did allow the trees to grow more tissue, only those pines receiving the most w...successful trees to die off as the most-successful grow bigger. "We didn't find that elevated CO2 caused any deviation from this standard relationship," s...Link between sunspots, rain helps predict disease in east Africa
...e the link between sunspots and rainfall seemed to grow weaker from 1927 to 1968, the cyclic pattern held true throughout the 20th Century. Previous statistical analysis discounted the link for a variety of reasons, including the influence of climatic disturbances not associated with sunspots. The resea...In limiting life span, study finds booming bacteria innocent
...d would increase or be otherwise altered as people grow older. Indeed, studies have found shifts in humans intestinal bacteria with age and evidence that bacteria may blossom in the prostate and other organs of the elderly. To explore the consequences of such changes in bacteria with age in greater deta...Study: Sticking to the sand might not be such good, clean fun for beachgoers
...e. "Some researchers have found that enterococci grow in the sand, that they occur naturally. So it's not linked to fecal input," Boehm said. "But in this case, we looked closely at Lovers Point, and there were actually signatures of human waste." In fact, Boehm recalled a storm drain at Lovers Point ...UCLA scientists produce functioning neurons from human embryonic stem cells
... Academy of Sciences. Previously, the system to grow and isolate neurons was very messy and it was unknown whether those neurons were functioning, Sun said. Were excited because we have been able to purify so many more neurons out of the cell culture and they were, surprisingly, healthy enough to form ...Genetic factors strongly shape how peers are chosen
...duct and antisocial personality disorder. As we grow and move out of our own home environment, our genetically influenced temperament becomes more and more important in influencing the kinds of friends we like to hang out with, said Kenneth S. Kendler, M.D., a professor of psychiatry and human genetics...Anthrax bacterium's deadly secrets probed
...roteins the anthrax bacterium secretes equip it to grow only in an animal host and not in the soil. Thi...ing sheds light on why Bacillus anthracis does not grow in soil, even though in many ways it resembles a soil-growing bacterium. It has the ability to lie d...A sensory organ, not the brain, differentiates male and female behavior in some mammals
...ys. "Either the vomeronasal organ may be needed to grow a female-specific neural circuit during development, or the mature female mouse brain may require vomeronasal activity to repress male behavior." To test these two alternatives, Dulac and her colleagues excised vomeronasal organs from the nasal sep......icture of how anthrax-causing bacteria survive and grow inside unwitting immune cells their supposed attackers during the crucial first moments of anthrax infection. They have also identified gene candidates to pursue as possible anthrax drug targets. They say the methods they used to detect the microbe...Molecule blocks gene, sheds light on liver cancer
...r-suppressing gene, allowing liver-cancer cells to grow and spread. This molecule is a microRNA, a recently discovered class of tiny molecules used by cells to help control the kinds and amounts of proteins they make. More than 250 different microRNAs have been discovered, and several have been linked ...'The Man Who Saved The Sea Turtles'
...rns, he showed that these large turtles, which can grow in excess of 300 pounds, travel all over the Caribbean -- even to the Florida Keys -- but return to Tortuguero to reproduce. By protecting just one beach, then, he demonstrated how it might be possible to save an entire sea turtle population from e...Under magnetic force, nanoparticles may deliver gene therapy
...e blood flow. Many stents eventually fail as cells grow on their surfaces and create new obstructions, so delivering anti-growth genes to stents could help keep blood flowing freely. The materials composing the nanoparticles are biodegradable, so they break down into simpler, nontoxic chemicals that can...Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
...tures. First, at around 900 degrees C, researchers grow SWNTs on a silicon substrate using chemical vapor deposition. Then, researchers transfer the SWNTs onto a plastic substrate at temperatures lower than 150 degrees C using a technique called dry transfer printing. This precise process is what allows...New UD tissue-engineering research focuses on vocal cords
...aracteristics of the natural organs. In order to grow a functional tissue in vitro, you need to provide the cells with a biological and physical environment that is as close to that of the natural tissue as possible, Jia said. To mimic the complex and rigorous movement experienced by vocal fold tissue...Negative effects of plastic's additive blocked by nutrient supplements
...e mice fed BPA had a yellow coat and likely would grow to be obese as adults demonstrates that this single substance had a system-wide effect, said Dana Dolinoy, Ph.D., postdoctoral fellow in the laboratory of Randy Jirtle, Ph.D., senior member of the research team. A comparison between the large yellow ...Waters off Washington state only second place in world where glass sponge reefs found
...e reefs build upward as new generations of sponges grow atop the still-hard silica skeletons of previous g...feet above the seafloor. The sponges on the mounds grow as tall as 1 feet. The mounds off Grays Harbor have the same trio of glass sponge species as the r...