Experiment suggests limitations to carbon dioxide 'tree banking'
... The researchers found that extra carbon dioxide had no effect on what foresters call "self thinning" -- the tendency of less-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," said McCarthy, now a p...Secret life of elephant seals not secret anymore!
...ls, Professor Hindell said. In particular, we have had no way to study how the seals interact with their environment and the prey within it. By monitoring changes in the rate at which seals drift up or down during passive drift dives, the scientists could determine where the seals were gaining fat (and......grown under axenic conditions and the normal flies had the same life span, Tower said. The experiment cannot be replicated in higher organisms, which need bacteria for proper digestion and other functions. But the result in flies still may be relevant to human aging research. In both flies and humans...Other highlights in the Aug. 7 JNCI
...ar cancer survivors diagnosed with a second cancer had mortality rates similar to men diagnosed with a fi... during radiation treatment for testicular cancer) had poorer survival than patients whose first cancers were in the same area. Treatment regimens for te...Argonne wins three R&D 100 awards for innovative technologies
...us attempt at detecting terrestrial chemical gases had surpassed this measure of performance and with less susceptibility to cloud and other atmospheric interference. Nitric oxide is a common byproduct of nuclear fuel reprocessing operations. Such remote-sensing capabilities will allow watchdog agenci...In limiting life span, study finds booming bacteria innocent
...Yet treatments that reduced the number of bacteria had no effect on life span, they found. That discovery led the researchers to conclude that, at least under optimal laboratory conditions, Drosophila can tolerate a significant number of bacteria and mount a strong innate immune response against them wit...Macho men are seen as bad choice for long-term love
...warm, compared to their feminine counterparts, who had finer facial features with fuller lips, wide eyes and thinner, more curved eyebrows. The scientists say the research, partly supported by the Medical Research Council and the Economic and Social Research Council, backs up earlier research about m...Study: Sticking to the sand might not be such good, clean fun for beachgoers
... found that 91 percent of the beaches in the study had detectable levels of enterococci and that 62 percent of them had traces of E. coli. Swimming in water with high levels of those bacteria can cause a number of reacti...AAAS analysis finds Congress would add billions to FY 2008 R&D investment
...nt of Energys (DOE) energy-related R&D initiatives had received significant increases in 2007, but the Bush administration requested cuts for 2008. Congress would keep increasing DOE energy R&D spending dramatically, by18.5 percent in the House to $1.8 billion and a staggering 29 percent to $2.0 billion ...UCLA scientists produce functioning neurons from human embryonic stem cells
...entia and schizophrenia. Researchers previously had been able to produce neurons - the impulse-conduct...ble to isolate the neurons and determine that they had a functional synaptic network, which the neurons use to communicate. Because they were functional, t...Gene variant is associated with brain anatomy, clinical course of ADHD
...-seven (64 percent) of the children with ADHD also had a follow-up clinical evaluation an average of six ...als with ADHD who carried the DRD4 7-repeat allele had better clinical outcomes and regained thickness in their right parietal cortexa sign previously link...Computer graphics spills from milk to medicine
...nt of fat and protein in the milk. In the past, we had to do a lot of observing and measuring to determin...e saw ways to address some of the assumptions that had made it difficult to generalize the Lorenz-Mie theory beyond perfect spheres, said Jensen. Once t...Research team enlightens the reasons for severe blindness
...ly discovered LCA5 gene, ten disease-causing genes had been identified so far which are responsible for approx. 60 % of all LCA diseases. All these deficiencies lead in the end to the same symptoms, however, in order to treat the disease efficiently with the individual patient, it is important to know wh...Anthrax bacterium's deadly secrets probed
...e. Before this new method, researchers would have had to perform these operations manually, often retrieving algorithms for performing the analyses from separate, distributed computers. The team decided to test their method on 12 members of the Bacillus family. Family members exhibit a variety of b...Gene predicts better outcome as cortex normalizes in teens with ADHD
...ne in youth with ADHD. Since this gene version had similar structural effects in healthy children as ...DHD and in about one-sixth of the healthy controls had at least one copy of the 7-repeat version. Nearly two thirds of the ADHD youth and three-fourths of...UF, French scientists seek test to detect gene doping in athletes
...hat could detect evidence of doped DNA. WADA has had a research program in place for some years now, to try to develop tests for gene-based doping, said Theodore Friedmann, M.D., head of the agencys panel on genetic doping and director of the gene therapy program at the University of California, San Di...Genetic analysis finds greater threat in frog-killing fungus
...rchers would expect to find a single genotype that had spread by clonal reproduction. If, however, the fu...e sites were areas where previous frog populations had been wiped out by chytridiomycosis. Out of 10 reintroduction attempts over the past four years, se...In a first, Einstein scientists discover the dynamics of transcription in living mammalian cells
...ntained 200 copies of an artificial gene that they had inserted into one of the cells chromosomes. Then, by attaching fluorescent tags to RNA polymerase II, they were able to closely monitor all three phases of the transcription process: binding of the enzyme molecules to DNA, initiation (when the enzyme...Satellite tracking will help answer questions about penguin travels
... of scientists that included Boersma reported they had found 19 groups rehabilitating oiled seabirds alon...a, indicating a much larger problem than generally had been believed. It remains uncertain where the oil comes from -- it could be from a combination of so......rs ago, scientists realized that some hemichannels had no partners; they led directly from the cells interior to the fluid extracellular space. In 2000, Lal and colleagues showed that cells used these channels to increase their volume, opening as necessary to take in water and calcium ions that allowed c...