12-01-2010   -   Agriculture

Wed 13 Jan 2010 How plants 'feel' the temperature rise? Plants are incredibly temperature sensitive and can perceive changes of as little as one degree Celsius. New research shows how they not only 'feel' the temperature rise, but also coordinate an appropriate response -- activating hundreds of genes and deactivating others; it turns out it's all about the way that their DNA is packaged. The new findings may help to explain how plants will respond in the face of climate change and offer scientists new leads in the quest to create crop plants better able to withstand high temperature stress. more

  12-01-2010   -   Chemistry

Tue 12 Jan 2010 'Nanodragster' Races Toward the Future of Molecular Machines. Scientists in Texas are reporting the development of a "nanodragster" that may speed the course toward development of a new generation of futuristic molecular machines. The vehicle -- only 1/50,000th the width of a human hair -- resembles a hot-rod in shape and can outperform previous nano-sized vehicles. more

  04-01-2010   -   Physics

Tue 5 Jan 2010 Quelling Casimir: Scientists to Control Quantum Mechanical Force. Scientists at the U.S. Department of Energy's Argonne National Laboratory are developing a way to control the Casimir force, a quantum mechanical force that attracts objects when they are only hundred nanometers apart. more

  04-01-2010   -   Biology

Mon 4 Jan 2010 Using Modern Sequencing Techniques to Study Ancient Humans. DNA that is left in the remains of long-dead plants, animals, or humans allows a direct look into the history of evolution. So far, studies of this kind on ancestral members of our own species have been hampered by scientists' inability to distinguish the ancient DNA from modern-day human DNA contamination. It is possible to directly analyze DNA from a member of our own species who lived around 30,000 years ago. more

  27-12-2009   -   Nuclear

Sun 27 Dec 2009 A Korean consortium has won the $20 billion nuclear power contract with the United Arab Emirates proving Korea's global leadership status in nuclear industry. It is the first time that a Korean consortium has won a contract to build nuclear power facilities in a foreign country. Korea thus has become the world's sixth exporter of nuclear power facilities after the United States, France, Canada, Russia and Japan. The Korean consortium, which includes the Korea Electric Power Corp., Hyundai Engineering and Construction, Samsung C&T Corp. and Doosan Heavy Industries, won the order to build four 1400 MW light water nuclear power reactors in Sila, 330 Km west of Abu Dhabi, the first of which to go critical by 2017. The UAE, the world's third-largest oil exporter, is planning to meet an expected need for an additional 40 gegawatts of power by 2020. more

  20-12-2009   -   Biology

Sun 20 Dec 2009 Looking for the Heartbeat of Cellular Networks. Our cells' molecules form an intricate network of interactions. Today's techniques, however, can only be used to measure individual molecular reactions outside the cells. Since molecular concentrations are much higher in cells than in the laboratory, scientists suspect that the kinetics of molecular reactions in living cells differ substantially from external probes. more

  15-12-2009   -   Biology

Tue 15 Dec 2009 Newly Identified Enzymes Help Plants Sense Elevated CO2 and Could Lead to Water-Wise Crops. Biologists have identified plant enzymes that may help to engineer plants that take advantage of elevated carbon dioxide to use water more efficiently. The finding could help to engineer crops that take advantage of rising greenhouse gases. more

  14-12-2009   -   Physics

Mon 14 Dec 2009 Absorbing Hydrogen Fluoride Gas to Enhance Crystal Growth. Two scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have developed a method to control the buildup of hydrogen fluoride gas during the growth of precision crystals needed for applications such as superconductors, optical devices, and microelectronics. The invention, by Vyacheslav Solovyov and Harold Wiesmann and recently awarded U.S. Patent number 7,622,426, could lead to more efficient production and improved performance of these materials.more

  07-12-2009   -   Environment

Mon 7 Dec 2009 New Optical Sensors Enabling Lightning-Fast Trace Gas Detectors. A new generation of optical sensors is enabling the development of robust, long-lasting, lightning-fast trace gas detectors for use in a wide range of industrial, security and domestic applications. more

  03-12-2009   -   Physics

Thu 3 Dec 2009 Scientists Demonstrate 120 Watt mid-infrared Lasers. Northwestern University researchers have achieved a breakthrough in quantum cascade laser output power, delivering 120 watts from a single device at room temperature. The results are particularly attractive for infrared countermeasure, a way of misguiding incoming missiles to protect commercial and military aircrafts.more

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