24-03-2014   -   Physics

Wed 26 Mar 2014. Scientists develop silicon cells capable of absorbing infrared radiation from the sun. Researchers have developed a silicon photovoltaic cell capable of turning infrared radiation into electricity. The sun is an inexhaustible source of energy which well-exploited, could solve many of the energy suply problems we have today. The photovoltaic cell, commonly known as solar cell, is a device capable of turning solar light into electricity. However, there are many obstacles that prevent a massive use, such as a relatively high cost (0.02 euros per watt generated) and the low efficiency of silicon based solar cells, around 17 per cent. More

  24-03-2014   -   Medicine

Mon 24 Mar 2014.Y-90 provides new, safe treatment for metastatic breast cancer. Y-90 radioembolization can shrink liver tumors, relieve painful symptoms, boost the excellent of life and potentially extend survival. The therapy is not limited by tumor size, shape, place or quantity, and it can ease the severity of disease in patients who can not be treated effectively with other approaches. More

  17-02-2014   -   Physics

Mon 17 Feb 2014.Physicists reveal novel magnetoelectric effect that makes it possible to control magnetism with an electric field, ie "switching mechanism". The novel mechanism may provide a new route for using multiferroic materials for the application of RAM (random access memories) in computers and other devices, such as printers. The researchers studied a new predicted state of the multiferroic bismuth ferrite, a compound that can change its electrical polarization when under a magnetic field or magnetic properties when under an electric field. Because of these effects, bismuth ferrite interests researchers who want to design novel devicesbased on magnetoelectric conversion. The "coupling mechanism" in bismuth ferrite between magnetic order and electrical polarization order is required for this phenomenon to be clearly understood. More

  16-02-2014   -   Chemistry

Sun 16 Feb 2014.Carbon nanotube fibers outperform copper in carrying electrical current. On a kg-per-kg basis, carbon nanotube-based fibers have greater capacity to carry electrical current than copper cables of the same mass, according to new research. While individual nanotubes are capable of transmitting nearly 1,000 times more current than copper, the same tubes coalesced into a fiber using other technologies fail long before reaching that capacity. But a series of recent tests showed the wet-spun carbon nanotube fiber still handily beat copper, carrying up to four times as much current as a copper wire of the same mass. More

  03-02-2014   -   Chemistry

Mon 3 Feb 2014.New instrument to study complex molecules invented. Known as 2DIR for short, the the worlds first fully automated dual-frequency, two-dimensional infrared spectrometer boasts vast research and commercial uses. It gives scientists a powerful new method to study DNA and other complex molecules by measuring distances and angles between molecular substructures, thus unraveling three-dimensional molecular structures while tracking changes at an ultra-fast time scale. The superior sensitivity and ease of operation of the instrument make the 2DIR method accessible for researchers in various areas of science. More

  01-02-2014   -   Energy

Sat 1 Feb 2014.Energy storage in miniaturized capacitors may boost green energy technology. "Supercapacitors" take the energy-storing abilities of capacitors (which store electrical charge that can be quickly dumped to power devices) a step further, storing a far greater charge in a much smaller package. Recently, researchers describe the possibility of fabricating a new class of high heat-tolerant electronics that would employ supercapacitors made from a material called calcium-copper-titanate, or CCTO, which the researchers have identified for the first time as a practical energy-storage material. More

  29-01-2014   -   ICT

Wed 29 Jan 2014.A new long-range wireless tag detection system, with potential applications in health care, environmental protection and goods tracking, can pinpoint items with near 100 per cent accuracy over a much wider range than current systems. The new system improves the accuracy of passive (battery-less) RFID tag detection from roughly 50 per cent to near 100 per cent, and increases the reliable detection range from two to three metres to approximately 20 metres. More

  03-11-2013   -   Chemistry

Sun 3 Nov 2013.Evidence for a new nuclear 'magic number'. Researchers have come one step closer to understanding unstable atomic nuclei. Scientists have now provided evidence for a new nuclear magic number in the unstable, radioactive calcium isotope 54Ca. They show that 54Ca is the first known nucleus with 34 neutrons (N) where N = 34 is a magic number. More

  09-10-2013   -   Chemistry

Wed 9 Oct 2013.The Nobel Prize in Chemistry 2013 was awarded jointly to Martin Karplus (Universit de Strasbourg, France/Harvard University, USA), Michael Levitt (Stanford University, USA) and Arieh Warshel (University of Southern California, USA) 'for the development of multiscale models for complex chemical systems'. More

  08-10-2013   -   Physics

Tue 8 Oct 2013.The Nobel Prize in Physics 2013 was awarded jointly to Franois Englert (Universit Libre de Bruxelles, Belgium) and Peter W. Higgs (University of Edinburgh, UK), 'for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN's Large Hadron Collider' more

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