Experiment suggests limitations to carbon dioxide 'tree banking'
...f as the most-successful grow bigger. "We didn't find that elevated CO2 caused any deviation from this standard relationship," said McCarthy, now a postdoctoral fellow at the University of California, Irvine. Also unchanged by the CO2 enrichment were the proportions of carbon atoms that found their wa...Secret life of elephant seals not secret anymore!
...seals go on their winter feeding trips, where they find food and where they dont, and help explain why som...ecoming more buoyant) and where food was harder to find and the animals lost fat. These measurements have allowed us for the first time to make circumpola......liana. Specifically, the researchers expected to find a relatively high level ofLD, because after the transition to selfing the disruption of variantcombinations would have slowed dramatically. But the LD pattern instead suggested that selfing evolved on the order of amillion years ago or more, and pe...Lost forest yields several new species
...of continued instability in the area. If we can find six new species in such a short period it makes you wonder what else is out there, said WCS researcher Dr. Andrew Plumptre, director of the societys Albertine Rift Program. The forest survey was conducted between January and March of 2007, and inc...High-intensity ultrasound may launch attack on cancer, wherever it lurks
...l tumors by heating them. But Duke researchers now find that HIFU might work even better if it is first delivered in a manner that just shakes the cells. That shaking ruptures tumor cell membranes, causing them to spill their contents. The toxic spill then alerts the immune system to the cancer threat, le...UCLA scientists produce functioning neurons from human embryonic stem cells
...rong that leads to these debilitating diseases and find a way to stop or treat it. Sun will be among the first researchers to be able to study true neuron function. A second important discovery in Suns study showed that two embryonic stem cells lines derived in similar manners, and therefore expecte...American Chemical Society's Weekly PressPac -- Aug. 1, 2007
...matically, along with frenzied research efforts to find the best raw materials for its economical producti...ening methods that pharmaceutical companies use to find potential drug candidates within libraries of compounds. If successful, such assays may in the sho...Genetic analysis finds greater threat in frog-killing fungus
...oduced to an area, the researchers would expect to find a single genotype that had spread by clonal reprod...ungus is endemic to a region, they would expect to find diverse genotypes resulting from a long history of association that provides enough time for isolate...Satellite tracking will help answer questions about penguin travels
...ithin 5 kilometers, so it really is like trying to find a needle in a haystack," Boersma said. Locating the penguins once they reach the breeding ground is important so the researchers can assess the birds' physical condition after the long journey. "We'll know how much weight ...New mechanism links smoking to lung damage
...he University of Chicago. "We were surprised to find out how little it took to cause such damage, only a small change in membrane electrical properties," he added, "and by how much damage it could cause." Hemichannels form a small gated pathway from the interior of a cell, through the cell membrane t...Multicenter study nets new lung tumor-suppressor gene
...ns may be unable to act as a brake on cancer. To find out, the investigators ran a series of experiments in mice with a defective form of a gene called Kras, which drives the formation and growth of lung cancer. They tracked the development of lung cancer in animals with mutated LKB1 and compared it to ...Human knowledge is based upon directed connectivity between brain areas
...sed on previous studies the scientists expected to find not only a different level of brain activation in a set of distributed areas but also a different number of interactions between these areas. We expected that a larger number of brain interactions, a stronger degree of connectivity occurs, whenever a...Beyond Mesopotamia: A radical new view of human civilization reported in Science
...with an unknown writing system. This controversial find highlights the complexity of the cultures in an area long considered a backwater, Lawler explained. These urban centers are away from the river valleys that archaeologists have traditionally focused on, according to Lawler. Archaeologists now have ...New survey documents the headaches of computerized medicine
... is offset by the increased information physicians find available at the point of care via CPOE making patient visits more effective. The ability to maintain control over consequences may give hospital decision makers more confidence when making the determination to implement CPOE. With respect to the lo...Discovery of new protein could provide new understanding of male fertility
...at have been found, researchers are more likely to find another E2 or E3 enzyme than a new E1 enzyme, which explains why Goetrrup and his colleagues were very surprised to stumble upon one. You can picture E1 as the Federal Reserve Bank," Goettrup says. "Until now, scientists have shown that, in all the...Identified mechanism in the malaria parasite to help it adapt to infected individuals
...ptation system to the host and our challenge is to find out how this mechanism works at molecular level; t...or to silencing. Another immediate objective is to find out how many of the 30 genes involved in the invasion of red blood cells are active or inactive in p...Altering a protein makes mice less fearful
...want to take them," Wemmie explained. "If we could find something that was more specific, or even had a different set of side effects, that could be an advantage." Although this study examined the effect of disrupting the ion channel in mice, the mouse gene is very similar to the human gene, and the ASI...COX-2 inhibitors delay pancreatic cancer precursors in mice
...aid Eibl. However, with additional studies, we may find COX-2 inhibitors could help prevent pancreatic cancer in high risk populations. Pancreatic cancer is so deadly because it often goes undetected until its too late, said Dr. Eibl. If a patient is at a high-risk for developing pancreatic cancer, a C......enses. These make it a challenge for scientists to find a prime moment when future drugs, without the dige...t step, U-M scientists plan to screen compounds to find ones able to block specific processes they have identified in the anthrax microbe.......ing them hints as to how well they are doing. To find out whether orangutans intentionally communicate with people through gesturesa skill earlier attributed to chimpanzeesErica Cartmill and Richard Byrne presented six captive orangutans with situations in which one tempting and one not-so-tempting food...