15-12-2008   -   Biology

Mon, 15 Dec 2008 Biologists have known for decades that cells use tiny molecular motors to move chromosomes, mitochondria, and many other organelles within the cell, but no one has been able to understand what "steers" these engines to their destinations. Now, researchers have shed new light on how cells accomplish this feat and the results may eventually lead to new approaches to fighting pathogens and neurological diseases.more

  14-12-2008   -   Physics

Sat, 13 Dec 2008 The first generation of quantum dots were made from the toxic heavy metal cadmium and had emission wavelengths, and colors, determined by their size. "Lattice strain" created by layers of different semiconductor materials allows the color of quantum dots to be tuned independent of size. Small enough to pass through the kidneys if administered systemically, the new quantum dots are expected to be useful for cancer detection and possibly in solar energy conversion.more

  02-12-2008   -   Energy

Tue, 2 Dec 2008 Currently solar cells are difficult to handle, expensive to purchase and complicated to install. The hope is that consumers will one day be able to buy solar cells from their local hardware store and simply hang them like posters on a wall. A recent study has shown that the dream is one step closer to reality.more

  27-11-2008   -   Geology

Thu, 27 Nov 2008 Scientists have successfully completed record-setting, petascale-level simulations of the earth's inner structure, paving the way for seismologists to model seismic wave propagations at frequencies of just over one second -- the same frequencies that occur in nature. more

  19-11-2008   -   Energy

Wed, 19 Nov 2008 Engineers in Spain have developed an algorithm that can optimize hybrid electricity generation systems through combined use of renewable energies, such as photovoltaic and wind power, and non-renewables, such as diesel. Their study envisions storing the energy in batteries or hydrogen tanks.more

  17-11-2008   -   NanoTech

Mon, 17 Nov 2008 Physicists have found a way to extend the quantum lifetime of electrons by more than 5,000 per cent. Electrons exhibit a property called 'spin' and work like tiny magnets which can point up, down or a quantum superposition of both. The state of the spin can be used to store information and so by extending their life the research provides a significant step towards building a usable quantum computer. more

  16-11-2008   -   Physics

Sat, 15 Nov 2008 Researchers at NIST are decoding the mysterious mechanisms behind the high-temperature superconductors that industry hopes will find wide use in next-generation systems for storing, distributing and using electricity.more

  02-11-2008   -   Agriculture

Sun, 02 Nov 2008 Researcher Grows Roots On Upper Part Of Plant. Researchers have succeeded in growing roots on plants at places where normally leaves would grow. This important step in plant modification can be highly beneficial for improving crop yields and efficiency in agriculture.more

  02-11-2008   -   Biology

Sun, 02 Nov 2008 Biologists Discover Motor Protein That Rewinds DNA. Biologists have discovered the first of a new class of cellular motor proteins that "rewind" sections of the double-stranded DNA molecule that become unwound, like the tangled ribbons from a cassette tape, in "bubbles" that prevent critical genes from being expressed.more

  14-10-2008   -   Chemistry

Wed 8 Oct The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Chemistry for 2008 jointly to Osamu Shimomura from Marine Biological Laboratory, USA and Martin Chalfie from Boston University Medical School, USA, and Roger Y. Tsien, University of California, USA for the discovery and development of the green fluorescent protein, GFP.more

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