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Tag: "great" at biology news

Scientists and engineers apply nature's design to human problems

...his is a key invitation for us," Yen said. "It's a great opportunity to get connected locally with leaders ... human applications," Yen said. "Georgia Tech is a great place to do this kind of research. It provides engineers who want to apply their expertise with biol...

Study shows big game hunters, not climate change, killed off sloths

...on of giant ground sloths and other North American great mammals such as mammoths, mastodons and saber-toothed tigers, says a University of Florida researcher. Determining whether the first arrival of humans or the warm-up of the American continent at the end of the last Ice Age was responsible for the de...

Research casts doubt on circulating stem cells

... from bone marrow-derived cells. In recent years a great deal of hype has been generated around the idea of a "cellular jack of all trades" ?not least because some studies gave grounds for hope. Using irradiation techniques, researchers managed to destroy the bone marrow in mice and replace it with cells w...

Method slashes quantum dot costs by 80 percent

...olecular engineering and of chemistry. "That was a great reality check, and it made us look at the problem of solvent cost sooner rather than later." Quantum dots typically cost more than $2,000 per gram from commercial sources, and pricey solvents like octadecene, or ODE - the least expensive solvent use...

The right drug at the right time

...olecular engineering and of chemistry. "That was a great reality check, and it made us look at the problem of solvent cost sooner rather than later." Quantum dots typically cost more than $2,000 per gram from commercial sources, and pricey solvents like octadecene, or ODE - the least expensive solvent use...

NC State researchers redesign life for Mars and beyond

... protection to plants. And, they're involving more great minds tocome up with more answers - they've team-taught an honors undergraduate class called "Redesigning Living Organisms to Survive on Mars: Development of Virtual Plants" and plan to offer another class to investigate new mechanisms for reducing r...

Chernobyl: The true scale of the accident

...ers of the damaged reactor. Radioactive iodine, of great concern after the accident, has a short half-life, and has now decayed away. Strontium and caesium, with a longer half life of 30 years, persist and will remain a concern for decades to come. Although plutonium isotopes and americium 241 will persist...

Anti-cancer Compound In Beer Gaining Interest

...es are just exploding at this point, and there's a great deal of interest." Quite a bit is now known about the biological mechanism of action of this compound and the ways it may help prevent cancer or have other metabolic value. But even before most of those studies have been completed, efforts are under...

Living anti-HIV gel shows early promise

...r in Chicago, United States. "Obviously there is a great deal of work ahead, but it is certainly a novel approach that deserves further investigation." Link to abstract of paper in Proceedings of the National Academy of Sciences Reference: Proceedings of the National Academy of Sciences 102, 11993 (2005)...

New molecule may aid in production of biofuels and fungi-resistant plants

... organisms and parasites, chitin degradation is of great interest to humanity. For example, insects might be combated by interfering with their chitin metabolism. Insect viruses need to degrade insect chitin for infection. Fungi may also be combated by degrading the chitin in their cell walls." More than ...

Sudden change in social status triggers genetic response in male fish, study finds

...y removed from the tank after dark. "Cichlids have great vision, but like all animals, they can't see in total darkness and basically do nothing," Fernald explains, "In some ways, this experiment was more like nature, where a predator comes in and picks off a dominant fish opening up the field for non-domi...

CO2 sensing proves critical for fungal pathogens to adapt to life in air and human hosts

...llular level is not fully understood, but it is of great importance in understanding the biology of microbes, plants, and animals alike. For example, CO2 levels govern the detection of prey by female mosquitoes, control respiration in mammals, and of course play a critical regulatory role in photosynthesis...

Student scientists create living bacterial photographs

...y at The University of Texas at Austin. "This is a great example of the emergent field of synthetic biology...urn on and off single cells, which would give them great control. "If we can hit the cell with a laser, we can manipulate their biology without needles or s...

University of Delaware researchers develop cancer 'nanobomb'

...ke a pin prick." He believes the nanobomb holds great promise as a therapeutic agent for killing cancer cells, with particular emphasis on breast cancer cells, because its shockwave kills the cancerous cells as well as the biological pathways that carry instructions to generate additional cancerous cell...

New neurons take baby steps in the adult brain

...ystems are new neurons formed or integrated to any great extent naturally. ...

Marine conservation organizations team up to conduct Indonesia coral reefs assessment

...the two-week expedition. "This disaster presents a great opportunity to reinforce the concepts of marine management in Indonesia and to ensure that sufficient reef areas are protected such that fish and shellfish can prosper and reproduce." Shipboard expedition participants include: British marine biologi...

New technique multiplies life span in simple organisms

... "Naturally, mammals are complex, and it will be a great challenge to get major life-span extension." A "really exciting" implication, Longo said, is that cells may be able to speed up their DNA repair efforts. All organisms have the ability to repair harmful mutations in their DNA, whether caused by age,...

Max Planck researchers make a breakthrough in plant stem cell research

...s. (Nature, December 22, 2005). The results are of great importance for all of stem cell research. All above ground parts of a plant - leaves, stem, flowers, and seeds - ultimately are derived from cells of a small tissue at the tip of the shoot. Biologists call this tissue the "apical meristem", and it c...

Scientists pinpoint inflammation gene

.... Investigators believe this discovery will be of great interest to biomedical and pharmaceutical researchers because of an already heightened understanding of the role of inflammation in so many human disorders. "Practically every common disease involves an inflammation component," said John Blangero, P...

Envisat radar surveillance protects endangered prehistoric fish

...nearby one million square kilometres of ocean ?too great an area for naval vessels to police effectively. So the French maritime authority turned to satellite surveillance ?employing ESA's Envisat satellite in conjunction with Canada's Radarsat-1. The radar sensors aboard these spacecraft can monitor t...

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