Engineering endurance: The future of the Olympics?
...denosine triphosphate (ATP), a molecule that fuels many essential cell processes. A number of metabolic pathways supply muscle tissue with the ATP needed to power muscle contraction and sustain ongoing exercise. Which pathway predominates depends on factors like speed, duration, and type of activity, as w...Length of sex act in flies dictated by genetics
...es probably have important regulatory functions in many other areas that we do not yet understand," said J...learly involved clock genes. In other studies over many years, the gene period, as well as other "clock" genes, have been extensively explored. Giebultowicz...Carnegie Mellon scientists reveal ways of studying, resolving PCB contamination in US rivers
...e PCB production and use were banned, sediments of many lakes and waterways continue to provide a source of these deadly toxins to the water and ultimately to fish and people. Now, in a series of integrated studies, a multidisciplinary team of biologists and engineers from Carnegie Mellon University has...2nd media alert First Scientific Conference on Childhood Leukaemia
...ed possible associations with childhood leukaemia, many speaker and poster presentations focus on evidence suggesting possible new potential links with childhood leukaemia that have to date received little or no attention, These include diet in early childhood, light pollution, melatonin and circadian rhy...Nevada researcher re-ignites mammal reproduction debate
... which has been debated because there have been so many studies that have attempted to test the idea. The results have been contradictory--some find support for the hypothesis, some do not, Cameron said. But in a journal article published today in the "Proceedings of The Royal Society of London: B," a jo...Researchers find clues about how antibodies specialize
...n-fighting cells in the body -- are able to create many different kinds of specialized antibodies through selective gene mutations, while being protected from random mutations that could give rise to cancers. The findings, reported in the Aug. 26 issue of the journal Nature, will help scientists better...New compound could give some types of cancer the one-two punch
..." he continued. "Angiogenesis is very prominent in many cancers, particularly prostate cancer. Pure anti-angiogenic compounds haven't been that successful; somehow cancer cells still find a way to form blood vessels." Li and his colleagues are continuing to look for even more potent analogs based on the s...Virus known for its photo ops makes its movie screen debut
...g their behavior will open doors for scientists in many disciplines, especially with biologists, chemists and physicists increasingly working side by side." As a step in that direction, Rossmann said he hopes that he and his colleagues will be able to obtain a better picture of the components within the ...Muscles are smarter than you think
... great interest not only to elite athletes and the many laboratories around the world involved in muscle research, but also to all of us because previous orthodoxy was that acidity caused muscle fatigue.'...Scientists reinvent DNA as template to produce organic molecules
...ized that in order to apply such an approach to as many synthetic molecules as possible, we'd have to use a different type of template than an enzyme," Liu says. "The natural and robust zipping up of complementary DNA strands is a simple way to bring molecules at low concentrations together without having...Innovative 'ceramic-on-metal' hip replacements to undergo clinical trials
... bone than conventional artificial hips, therefore many recipients will avoid the need for further surgery...itations of conventional artificial hips mean that many patients are advised to wait as long as possible, often in considerable discomfort, before having an...Improved nutrition could reduce malaria burden worldwide
...evalence of children of this nutritional status in many countries. Widespread zinc and vitamin A deficiencies in malaria endemic regions contribute to growth faltering and compromise a child's ability to fight infection. Zinc improves growth and enhances the body's ability to respond to infection, and vi...Illustrated guidebook published for Chinese biomedical scientists and students
...scientists and engineers employed in the U.S. Like many similar institutions, Cold Spring Harbor Laborator...Science Press of Beijing, to bring the book to the many scientists in mainland China who wish to improve their English skills. The publication of this book ...Restoring sweetgrass to the South Carolina lowcountry
... men. Women took over the craft in the 1920s, when many of the men left the area to serve in the military or look for jobs. Though new forms have evolved in the work of individual artists, the basic designs have remained the same throughout time. The coiled seagrass baskets, now highly prized as works of ...Heartless worms hold clues to cardiac arrhythmias, sudden death
... inside. The pharynx, Petersen said, is similar in many ways to a heart. It has an intrinsic beating -- like a heartbeat -- that responds to neuronal input by speeding up or slowing down. The investigators were able to take advantage of a worm line with a mutation in the worm version of HERG. The mutatio...... When Hildebrand returned to Panama in the 1930's many species had already moved into streams on the oppo...e fish communities in these two rivers, even after many generations in this great natural experiment....Researchers report new gene test for isolated cleft lip and palate
...hip during the process, and children often require many other services, including complex dental care and speech therapy. The challenge has been how to move the field forward. Isolated clefts arise during fetal development from a dynamic and still poorly understood interplay of genes, diet, and environ...Newly discovered protein may be key to muscular dystrophy
...e brain, and is involved directly or indirectly in many diseases, including Alzheimer's and diseases of peripheral nerves. Discovery of the acetylcholine transporter could lead to therapies for some of these diseases based on altering acetylcholine levels, he said. Duchenne muscular dystrophy, the m...Ecologists help keep death off the roads
...at the high density of roads in Germany means that many lynx are killed moving around the landscape. According to the researchers: "The dense transport system results in high mortality. This gives clear management directives for dealing with reintroductions of lynx in Germany."......e we have identified a variant that predisposes to many different autoimmune diseases. We hope that this discovery will lead to the identification of other genes associated with lupus and other immune disorders." Behrens believes that dozens of genes may be responsible for lupus and that discovering the c...