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Selenium protects against bladder cancer. This suggests a new research led by scientists at the National Cancer Centre (CNIO ), which confirms a risk reduction of 39%. There is a greater protective effect on women because of gender differences in the absorption and elimination of this mineral in the body.
“Selenium is an essential micronutrient content of approximately 25 proteins , selenoproteins , some of which are enzymes with antioxidant properties that prevent cell damage caused by the byproducts of oxygen metabolism. Thus, low selenium levels are associated with an increased risk of developing bladder cancer , say researchers at the CNIO .
The study, led by Núria Malats , head of the Group of Epidemiology and Molecular Genetics Center , is a meta- analysis that included seven studies published in which were determined in serum selenium levels and toenails of samples from U.S., Belgium , France , Finland and the Netherlands.
From these studies, the authors assessed the risk of bladder cancer and observed a protective effect of selenium, especially in women , which could be due to gender -specific differences in the absorption and elimination of this mineral in the body. The results are published in the journal Cancer Epidemiology , Biomarkers & Prevention.
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Spanish researchers have calculated the probability of death by accident as the response time care. The conclusion is stark : to reduce from 25 to 15 minutes waiting time from the occurrence of an accident until they reach the emergency services would be associated with a reduced risk of death in third.
“In Spain , the average waiting time since an accident occurs until they reach the emergency medical services is about 25 minutes, “he explains to SINC Rocío Sanchez- Mangas, study co-author and researcher at the Autonomous University of Madrid ( UAM).
Their research, published by the journal Accident Analysis and Prevention “Is based on information from two databases: the records of the General Traffic Directorate (DGT ) with full details of the accident, and another study of the DGT May 2004 , with information on the time of the accident , the call emergency services and their arrival at the scene . By merging the two bases, was obtained a sample of 1463 accidents on Spanish roads.
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Morild is the first tidal power station motor floating world . Its electricity production will be launched in early September off the Lofoten Hydra Tidal , a Norwegian company at the base of this project .
The Lofoten Islands , off the northwest coast of Norway , beyond the Arctic Circle , have many natural settings in favor of energy production such as marine currents, eddies , coastal , tides … thereby promoting the production of clean electricity. Indeed , the plant ” will be very respectful of the environment with very low CO2 emissions ” said the founder of Hydra Tidal , Svein Dag Henriksen.
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Radioactive substances that radiate the longer must be stored safely for 100,000 years . Technicians seeking techniques so they can recycle some of the nuclear waste and neutralize the rest. In 1,000 years , the intensity of irradiated fuel elements from waste could decrease so it is comparable to that of natural uranium. It should also reduce the volume of waste .
Recycling takes place in several stages. First, a chemical treatment of irradiated substances can separate the fission products: uranium and plutonium, but also other chemicals, the minor actinides. These must be processed and used in part as part of the new fuel in reactors. The minor actinides – including cash neptunium , americium and curium – play a key role and, together with plutonium , materials that radiate the longest . To ensure the transmutation [ 1] of these elements, plutonium and minor actinides are bombarded by neutrons.
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The Daily nanotechnologists consists mainly analyze atoms separately. But until now it was difficult to observe the structure of atoms that are within organic molecules . In the scientific journal Physical Review Letter [ 1] , researchers at the Research Centre Julich [ 2] ( North Rhine- Westphalia ) describe their new method to scan the interior of the molecule . This method could facilitate the analysis of organic semiconductors as well as protein.
Julich researchers use a scanning tunneling microscope [ 3 ] to analyze the Nanoscale . The thin metal tip of the microscope traverses the sample surface like a needle of a gramophone and records by using small electric currents and surface roughness height differences of approximately one nanometer. But even with a microscope tip reduced to the size of an atom , it was hitherto impossible to have an image of the inside molecules .
” To increase the sensitivity for organic molecules, we placed a sensor and a signal converter to the microscope tip , ” said Dr. Ruslam Temirov . These two functions are fulfilled by a small molecule consisting of two atoms of deuterium (also known as heavy water) . This molecule is moving at the tip, it can follow the contours of the sample and affects the currents that pass through this point.
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Those responsible for the Almaraz nuclear power plant II ( Cáceres ) have decided to stop the reactor installation to repair a safety valve is malfunctioning. The event had no impact on people or the environment, as confirmed by the Nuclear Safety Council (CSN ).
The holder of the Almaraz nuclear power plant II has informed the Nuclear Safety Council (CSN ), following the statutory procedure , which has decided to proactively make an unscheduled stop the reactor to intervene pressurizer safety valve .
This event is “to increase steam flow valve that discharges into the pressurizer relief tank to a level of 70 liters per hour ( l / h ) below the 2271 l / h set in the Technical Specifications Operation ” , as confirmed by the regulator in a statement.
Those responsible for the nuclear installation and are analyzing the causes of the event and proceed to repair the valve once the plant is disconnected from the network.
All safety systems worked properly and the event had had no impact for workers, the public or the environment , temporarily classified as Level 0 on the International Nuclear Event Scale ( INES).
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The Alpha Magnetic Spectrometer ( AMS) arrived in late August 2010 at the Kennedy Space Center (Florida) .
It was an opportunity for Peter Hinze , Government Coordinator for aeronautics and aerospace as well as Parliamentary State Secretary at the Federal Ministry of Economics and Technology ( BMWi ) , to highlight the expertise to German . He has stated that ” AMS is an example for the prestigious achievements in basic research in Germany. With AMS , answers to central questions of the physics of our universe will be made. I am delighted that the transport of AMS to the International Space Station ( ISS ) has been made possible by the end of space shuttle flights . I congratulate the German scientists and Schael professor at the Technical University of Aachen (RWTH , North Rhine Westphalia), who participated in the successful development of AMS through its expertise and its strong commitment to excellence .
The instrument was presented to the public on the morning of August 28 , before his departure to the ISS scheduled February 26, 2011 aboard the last flight of U.S. space shuttles.
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Akershus Energi, Norwegian hydropower company , would have built the most modern area of Europe with regard to heating systems . The technology development has however nothing exceptional except that it combines different environmental technologies making plant so special . The energy sources used come from the region : wood chips , waste, energy and sewage from less than an hour’s drive from the factory.
70 % of the energy production of the heating plant will come from burning wood chips . The energy used to heat the water will then be sent directly to the customer and then stored in a ” vacuum “giant (thermal capacity of 1 200 000 liters) . As said Marius Holm of the environmental NGO BELLONA ” this project aims to provide a valuable experience in how the activity of the plant, technology and economy “.
The plant will be in full operation in 2015 . The energy capacity of the latter is estimated at 160 GWh , equivalent to the heating needs of 150,000 households in the area around Lillestrom . However, in the coming months , the plant already over 50 % of its ultimate capacity . Frank Sagvik , Akershus Energipark CEO , said that “the heat is set to replace fuel oil and electric heaters . A conservative estimate is that CO2 emissions [with this new energy park ] would reduce 30,000 tons per year. ”
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The virtual characters can act induced by actions that people make unconsciously. Researchers at the University of Barcelona have developed a system that measures human physiological parameters , such as breathing or heart rate, and incorporates real-time computer- created characters.
“The ultimate goal is to develop a method that enables humans to interact in an unconscious with some parts of the virtual environment more intensely than others, and is induced only by their own physiological responses to virtual reality displays , ” Christoph explains to SINC Groenegress , co-author and researcher at the University of Barcelona.
The system, whose details have been published recently in the journal The Visual Computer, measured with three sensors and wireless devices in real time physiological parameters : heart rate , respiration, and galvanic response (electrical ) of the skin of a person. Instantly, the data is processed with software that is used to control the behavior of a virtual character who is sitting in a waiting room.
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Researchers at the Christian-Albrechts University of Kiel ( Schleswig – Holstein ) have succeeded for the first time to define the mobility of all components of a blend of glass on all relevant temperatures .
In this work , they succeeded in identifying a fundamental mechanism of glass formation in an alloy Pd43Cu27Ni10P20 . They demonstrated that the mobility of palladium atoms , very large, was 10,000 times lower than that of other elements during cooling of the melt just before solidification.
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It was an opportunity for Peter Hinze , Government Coordinator for aeronautics and aerospace as well as Parliamentary State Secretary at the Federal Ministry of Economics and Technology ( BMWi ) , to highlight the expertise to German . He has stated that ” AMS is an example for the prestigious achievements in basic research in Germany. With AMS , answers to central questions of the physics of our universe will be made. I am delighted that the transport of AMS to the International Space Station ( ISS ) has been made possible by the end of space shuttle flights . I congratulate the German scientists and Schael professor at the Technical University of Aachen (RWTH , North Rhine Westphalia), who participated in the successful development of AMS through its expertise and its strong commitment to excellence .
70 % of the energy production of the heating plant will come from burning wood chips . The energy used to heat the water will then be sent directly to the customer and then stored in a ” vacuum “giant (thermal capacity of 1 200 000 liters) . As said Marius Holm of the environmental NGO BELLONA ” this project aims to provide a valuable experience in how the activity of the plant, technology and economy “.