09-02-2010   -   Chemistry

Tue 9 Feb 2010 Ultra-Cold Chemistry: First Direct Observation of Exchange Process in Quantum Gas. Considerable progresses made in controlling quantum gases open up a new avenue to study chemical processes. Rudolf Grimm's research team has now succeeded in directly observing chemical exchange processes in an ultracold sample of cesium atoms and Feshbach molecules. more

  07-02-2010   -   Energy

Sun 7 Feb 2010 Breakthrough for Hybrid Solar Cells. Scientists at the Department of Microsystems Engineering (IMTEK) and the Freiburg Materials Research Center (FMF) have succeeded in developing a method for treating the surface of nanoparticles which greatly improves the efficiency of organic solar cells. The researchers were able to attain an efficiency of 2 percent by using so-called quantum dots composed of cadmium selenide. more

  20-01-2010   -   Physics

Wed 20 Jan 2010 Physicists Tie Light in Knots. The remarkable feat of tying light in knots has been achieved by a team of physicists working at the universities of Bristol, Glasgow and Southampton, UK, reports a paper in Nature Physics this week. more

  20-01-2010   -   Medicine

Tue 19 Jan 2010 Atomic Structure of a Major Cancer Drug Target Cracked. Researchers at the University of Helsinki, Finland, and the Paul Scherrer Institute (PSI) in Villigen, Switzerland, have determined the crystal structure of the ligand binding domain of a vascular endothelial growth factor (VEGF) receptor in complex with one of its ligands (VEGF-C).

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  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

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