01-11-2007   -   Medicine

Thu, 01 Nov 2007 09:00:00 GMT Specifically aimed, "stereotactic" radiation may be as good as surgery -- and in some cases, even better -- in treating benign but potentially devastating brain tumors called nonacoustic schwannomas, according to a study by radiation oncologists. more

  25-10-2007   -   Biology

Thu, 25 Oct 2007 18:00:00 GMT In a major feat of nanotechnology engineering researchers have demonstrated a laser with a wide-range of potential applications in chemistry, biology and medicine. Called a quantum cascade laser nanoantenna, the device is capable of resolving the chemical composition of samples, such as the interior of a cell, with unprecedented detail. The new laser could lead to ultrahigh resolution microscopes for chemical imaging in biology and medicine.more

  22-10-2007   -   Chemistry

Mon, 22 Oct 2007 21:00:00 GMT A scientific mystery that stumped chemists for nearly seven decades has now been solved. ADP, like many crystals, exhibits an electrical phenomenon known as ferroelectricity, but it can also display antiferroelectric properties. New research points to the design of materials with both ferroelectric and antiferroelectric properties. This may lead to the development of more powerful computer memories and lasers. more

  21-10-2007   -   Engineering

Sat, 20 Oct 2007 12:00:00 GMT The winner of the Solar Decathlon -- a competition between 20 college and university teams to compete in 10 contests and design, build, and operate the most attractive and energy-efficient solar-powered home -- was the German University Technische Universität Darmstadt. The Solar Decathlon's homes are zero-energy, yield zero carbon, and include the latest high-tech solutions and money-saving benefits to consumers, without sacrificing comfort, convenience, and aesthetics.more

  17-10-2007   -   Biology

Wed, 17 Oct 2007 06:00:00 GMT Scientists have found that the f and m type plant thioredoxins previously thought to be localized only in chloroplasts are found in other, nonphotosynthetic, tissues, where they may have multiple functions. They have now established the presence of these redox proteins in tissues other than the chloroplast.more

  11-10-2007   -   Chemistry

Wed 10 Oct 2007 11:00:00 GMT The Nobel Prize in Chemistry for 2007 was awarded to Gerhard Ertl from Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin, Germany for his studies of chemical processes on solid surfaces.more

  10-10-2007   -   Physics

Tue 09 Oct 2007 11:00:00 GMT The Nobel Prize in Physics for 2007 was awarded jointly to Albert Fert, Université Paris-Sud; Unité Mixte de Physique CNRS Orsay, France and Peter Grünberg, Forschungszentrum Jülich, Germany for the discovery of Giant Magnetoresistance.more

  10-10-2007   -   Chemistry

Tue, 09 Oct 2007 00:00:00 GMT Chemists have synthesized a polyoxometalate with 100 Tungsten and 20 Cerium atoms that has a molar mass of about 30 kilo Dalton. With a maximum diameter of 4.2 nm the inorganic molecule is comparable in size to large complex bio-molecules or even small viruses. Polyoxometalates are anionic metal-oxygen clusters of large structural diversity with chemical properties, which make them especially interesting for applications in catalysis, but also in materials science and nanotechnology. more

  09-10-2007   -   Medicine

Mon, 08 Oct 2007 21:00:00 GMT The Nobel Prize in Physiology or Medicine for 2007 was awarded jointly to Mario R. Capecchi, Martin J. Evans and Oliver Smithies for their discoveries of "principles for introducing specific gene modifications in mice by the use of embryonic stem cells." This year's Nobel Laureates have made a series of ground-breaking discoveries concerning embryonic stem cells and DNA recombination in mammals. Their discoveries led to the creation of an immensely powerful technology referred to as gene targeting in mice. It is now being applied to virtually all areas of biomedicine -- from basic research to the development of new therapies. more

  02-10-2007   -   Agriculture

Insects can catch more than a cold from certain viruses. Some viruses can be lethal to pest species - turning their insides to soup - without harming beneficial insects or other organisms. Hence they are used as an environmentally friendly means of biological crop protection worldwide. The proverbial worm in the apple, the codling moth caterpillar, has been controlled in European orchards for years. But in southwest Germany, some organic apple growers noticed that the virus was losing its effectiveness. Pest resistance to chemical insecticides is common in agriculture, but resistance to viruses had never been a problem in the past. Scientists have now discovered how the codling moth rapidly developed virus resistance.more

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