Component of volcanic gas may have played a significant role in the origins of life on Earth
...rred, but we do not know how it occurred. The earliest fossils scientists have found are stromatolites--large clumps of cyanobacteria that grew in abundance in the ancient world over 3.5 billion years ago in what is now western Australia. These most likely evolved from some simpler life forms because, li...Emory chemists develop bacteria that may help decaffeinate coffee
...ffeinated coffee anytime soon. "We're still at the earliest stages of this work. There are many hurdles to overcome," he says. "As a scientist, I'm excited about the future. As a caffeinated coffee addict, part of me is not in a hurry to solve this one."...UF scientists have bionanotechnology recipe to find elusive bacteria
...l samples and can be used to detect disease in its earliest stages, Tan said. "This is really the interface of biological science and nanotechnology," he said. "In situations when the very sensitive detection of bacteria or other biological reagents is the critical issue, I think our technology will have a ...Researchers redrawing the Tree of Life
...suggested magnolias or buttercups were some of the earliest evolving flowering plants, or the base of the flowering plants tree. Now, Hilu said, a small shrub from New Caledonia called an Amborella forms the base, with water lilies coming directly after that. "This indicates a major shift from a shrub of terr......ists have already discovered quite a bit about the earliest stages of joint formation. It is known, for example, that stripes of cells that form between developing bones subsequently develop into the permanent cartilage found in joints. Several members of a family of secreted proteins known as bone morphogene...Stony Brook University medical researcher developing new medication to prevent colon cancer
...develop, but it is frequently not diagnosed in its earliest stages because cancerous lesions in the colon grow... magnifying endoscopy to examine the growth of the earliest recognizable lesions, known as aberrant crypt foci, or ACF. The imaging technique will be used to ev...Ancient sea spider fossils discovered in volcanic ash
...se because of their delicate nature. "This is the earliest adult fossil example, and it is preserved in extra... The new species, Haliestes dasos,, represents the earliest known adult sea spider by 35 million years. Its large pincers place the sea spiders firmly within a ...Clues to the puzzle of 'talking' root cells
... While the latest finding represents only the earliest hints of a mechanism by which the protein moves from cell to cell, it offers a promising pathway for further exploring that machinery, said Benfey. "Next, we're systematically cutting up and changing the Short-Root protein, to identify those...Gene therapy approach reverses diabetic neuropathy in animal model, Pitt study finds
...e results are significant because they provide the earliest evidence that such an approach might some day help people with diabetes, in whom neuropathy is a common complication that causes irreversible nerve damage. Details of the research were presented today at the 34th Annual Meeting of the Society for Neu...Human embryonic stem cells promising for replacement of blood supply
...search uses embryonic stem cells to understand the earliest stages of blood cell development....Plentiful fossils of dinosaur contemporary allow population study
...ved millions of years ago, at the same time as the earliest dinosaurs. Tanytrachelos is a long-necked reptile that was related to the perhaps better-known nine-foot (up to three meter) long Tanystropheus, also known for its very long neck. They belong to the Protosauria, a suborder of aquatic and terrestrial...Researchers discover molecular timekeeper in bone development
...rocess, they discovered that the defect was in the earliest steps, where the cartilage foundation was being laid and filled with minerals. Before the foundation was complete, minerals were being deposited too soon, allowing bone to harden before it was ready. Biochemical tests...Endurance running may be key to evolution of human body form
...logy showed Lieberman and Bramble that neither the earliest prehumans nor the chimps that are their nearest relatives have a nuchal ridge. The scientists were struck by ancient humans' acquisition of this feature, since the stooped predecessors of Homo erectus, known as australopithecines, spent much of their...Plant pathologists offer soybean rust identification and management tips
...ut fungicides on as a preventive measure or at the earliest sign of infection," said Jardine. Information on available fungicides, rates, and time of application can be obtained through local Cooperative Extension Service offices. Fungicide companies and the Environmental Protection Agency (EPA) are working c...UCSD biologists identify gene in corn plants that may have paved way for development of maize
...ears to have been a critical trait in allowing the earliest plant breeders 7,000 years ago to transform teosinte, a wild grass that grows in the Mexican Sierra Madre, into maize, the world's third most planted crop after rice and wheat. In a paper that appears in the December 2 issue of the journal Na...A complex agricultural society in Uruguay's La Plata basin, 4,800-4,200 years ago
...t fossils- show that Los Ajos' farmers adopted the earliest cultivars known in southern South America, including maize, squash, beans and tubers. Over time, around 3,000 years ago, the mound complex architectural plan of Los Ajos exhibited sophisticated levels of engineering, planning, and cooperation reveal...UT Southwestern researchers trace how virus that causes AIDS spreads following oral exposure
...o assess which tissues had SIV nucleic acid at the earliest times following an oral infection," said Dr. Donald Sodora, senior author of the paper. Oral transmission of HIV is problematic, especially in developing countries where bottle-feeding infants is not practical. Up to one third of newborns may become ...First analysis of chicken genome offers many new insights
...e chicken, long used to study gene activity in the earliest stages of life, may provide a good model for study... chicken, already a valuable tool for study of the earliest stages of life, also will become useful for study of its final stages. Wilson compares the...UCSD researchers derive lessons about human evolution from chicken genome
...e chicken, long used to study gene activity in the earliest stages of life, may provide a good model for studying changes in DNA linked to aging and death. Scientists also identified genes that affirm the chicken's value as a model for study of developmental disorders like cleft palate and diseases like muscu...Loss of fruit fly retina protein delays blinding light damage
...ng-held idea wrong," says Montell. Remarkably, the earliest vision loss in normal flies was reversible for up to three days of light exposure, says Montell. But after three days, when the eyes' electrical signals were halved, the eyes reached a point of no return and vision never fully recovered. This point s...