Duke Researchers Discover Central Role Of Nitric Oxide In Hemoglobin Action
...avels down arteries through the heart and into the rest of the body todeliver its load of oxygen. That process has to happen with open vesselsand in a constant pressure. So as the hemoglobin complex inevitably devoursthe free NO gas that endothelial cells produced to dilate the vessel,hemoglobin simulta...Surprising Protein Movement Seen In Cells
...rane -- pinched offand then transported out to the rest of the cell, where they areneeded for a variety of purposes. But these specific proteins are not transported; they aremysteriously retained in the organelle. Without the retention,the organelles would not function properly and vital lifeprocesses wou...Scientists Identify Retrovirus-Like Components In Corn Genome
...opies of its DNA segments scattered throughout the rest of the genome. In addition to finding greater numbers of mobile DNA segments than expected, the Purdue team discovered that the retrotransposons organize themselves in a unique manner, inserting themselves within each other like nesting dolls, and bu......, if the foragers don't share their knowledge, the rest of the colony may starve -- and fail to pass on their nearly identical genes. Food recruitment is a way for individuals to enhance what evolutionary biologists call 'inclusive fitness.' " Apparently naked mole-rats do not "dance" to give directions ...Sea Turtles Have Favorite Oceanic Routes
... could be one step that leads investigators to the rest of the leatherback population. "We've put most of our energy into protecting their nesting beaches, but there is little we can do elsewhere unless we know where they are," Morreale said. "They are not highly visible at sea." The corridor in the case...Siblicide In Nature: Study Of Galapagos Seabird Finds Death Can Ensure Species Survival
... out from the year before," Anderson said. "If the rest of our data show the same trend, then you would say that parents seem to maximize their long-term reproductive success by collaborating in the siblicide, because the effort required to raise two chicks at once is so high. The insurance value of the ....... Humans cannot make vitamin C, while most of the rest of the animal world can make their own," Last said. The way in which plant cells make vitamin C is now the topic of a project funded by the U.S. Dept. of Agriculture. The study of the vitamin C deficient plants also showed that they were hypersensi...Scientists Urge Further Study Of Alarming Coral Reef Decline
... startdisappearing, what's that going to do to the rest of theecosystem?" Coral reefs are an important factor in the economiesof many nations; for example, they provide key habitats forlobsters and groupers. The reefs also are a major touristattraction. "You could imagine what Australia would be like ifpe...Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool
...o be taken as a model for what is happening in the rest of the world. "Developing countries are expanding so rapidly that you have to ask how they affect local and regional weather and,possibly even global, climate," Quattrochi said. That means more houses, buildings, roads, and parking lots. Satellite ...Low Iron Levels Cause Weakness In Women Who Are Not Anemic
...e woman became anemic during the study, but in the rest of the placebo group, we saw a significant reduction in their physical performance compared with the supplemented group," Haas said. "This suggests that iron depletion not severe enough to cause anemia reduces performance potential at submaximum wor...One Chimp Can Perceive States Of Awareness In Others
...tranquilizer dart hid as a predator. For the rest of the experiments, one animal was placed in an adjoiningcage with a clear view of the food or threat while the other animal waskept off in a nearby room. Boysen wanted to know if one animal would "tell" the otherabout the reward or threat. If ...MGH-Led Team Finds Gene For Crippling Neurologic Disorder
...sually begin in the legs or arms and spread to the rest of the body, causing it to twist into unnatural postures; symptoms worsen when patients are fatigued or stressed. Patients with advanced dystonia may be confined to a wheel-chair or bedridden. The lifelong condition is more prevalent than Huntingt...Skull Of Refrigerator-Size Ancient Armadillo Finds A Home At UF
...y. "I probably will never see anything like it the rest of the time I'm involved in fossil collecting. We knew right away that it was a significant find because the skulls of these creatures are so rare." The site may have been a wolves' den because of the presence of a "dire wolf" skull and the b...Green Tea Ingredient Can Kill Cancer Cells
...oximately 20 percent of tea consumed is green; the rest is black tea. Other authors on the paper are Nihal Ahmad, Denise K. Feyes, Anna-Liisa Nieminen, and Rajesh Agarwal, all with the CWRU School of Medicine....Garlic Prevents Hardening Of Aorta, New Study Shows
...at delivers oxygen-rich bloodfrom the heart to the rest of the body. Boudoulas explained that a healthy,e... Researchers measured the PWV for subjects at rest and during mild exercise. On the average, the stiffness of the aortas of subjects in the garlic grou...Scientists Sift Through Trash In Search Of Perfect Landfill
... quickly todisappear while safely sealing away the rest in a capped landfill, he says. Ham says the country should be doing more to eliminate long-term problems withgarbage. "We've shown that we can accelerate decomposition over a shorter periodof time, rather than leaving it for our grandchildren to deal...New Imaging Technique Pinpoints Dead Heart Muscle
...e left ventricle, from which blood ispumped to the rest of the body. In every case of prior heart attack, significantdepletion of creatine was directly observed. Creatine has an energy-rich form, creatine phosphate, that ismetabolized, or used up to feed the heart's endless appetite for fuel. A dr......ment of the snout up and down independently of the rest of the skull. Thisallowed the animal to open its mouth quite wide in order to eat large fooditems. The diet of Shuvuuia deserti is not known, but may have includedinsects, as well as lizards and even small mammals. Prokinesis is considered avery a...New Sunspot Cycle To Be Bigger Than Average
...he data from early in a cycle to "predict" whatthe rest of the cycle would do. Most predictions match realityfairly close, except for Cycle 19, the current record cycle, whichpeaked at 190 in sunspot number in 1957, just as the first spacephysics satellites were being launched. Based on the various precu...The First Rejection: Eggs Sequester Bits Of Sperm For Later Elimination
...e their own DNA, and replicate separately from the rest of the cell, they can pick up hazardous mutations just as the DNA of a cell's nucleus can. If mitochondria were inherited both maternally and paternally, the cell would have two genetically different sets of mitochondria, each of which could pick up ...