Human immunodeficiency virus HIV disease represents a global health problem concern in the world especially in many areas of Africa According to the Joint United Nations Programme on HIV and AIDS UNAIDS there were 24.7 ... - Read More
For some time now energy experts have been adamant that we will need much more clean energy in the future if we are to replace fossil fuel sources and reduce CO2 emissions For example electric ... - Read More
Researchers have determined that the health risks taken on by artisanal small scale gold miners extend far beyond the miners themselves Based on a study of gold mining operations in Peru the miners' practices not ... - Read More
A team of scientists has identified how a sixth sense in fish allows them to detect flows of water which helps resolve a long standing mystery about how these aquatic creatures respond to their environment ... - Read More
Narrow strips of graphene called nanoribbons exhibit extraordinary properties that make them important candidates for future nanoelectronic technologies A barrier to exploiting them however is the difficulty of controlling their shape at the atomic scale ... - Read More
One challenge in improving the efficiency of solar cells is that some of the absorbed light energy is lost as heat So scientists have been looking to design materials that can convert more of that ... - Read More
A new study from the Norwegian University of Science and Technology shows that increased UV radiation can have an effect on human fertility over generations Gine Roll Skjærvø at the Norwegian University of Science and ... - Read More
A research group of the UPV EHU University of the Basque Country has used a material known as chitosan made from crustacean shells to substitute petroleum by products Riverbanks and oceans are full of plastic ... - Read More
Outside his career as a noted nanochemist Lawrence Berkeley National Laboratory Berkeley Lab director Paul Alivisatos is an avid photographer To show off his photos his preferred device is a Kindle Fire HDX tablet because ... - Read More
Synthetic materials are convenient in many respects but they have one disadvantage they are permeable to gases In order to make plastic more impervious Ruhr Universität engineers apply wafer thin layers on surfaces This would ... - Read More
Interlinkage of the power and gas grids is planned to make electricity supply sustainable and robust in the future Fluctuating amounts of wind and solar power for instance might be stored in the form of ... - Read More
Every several years workers apply a clay mask to India's iconic but yellowing Taj Mahal to remove layers of grime and reveal the white marble underneath Now scientists are getting to the bottom of what ... - Read More
Three billion years ago Earth's atmosphere contained less than 0.0001 percent oxygen Today's atmosphere has around 20 percent oxygen and that is due to the work of tiny microorganisms in Earth's primeval oceans Cyanobacteria which ... - Read More
Fertilizers are known to promote the growth of toxic cyanobacterial blooms in freshwater and oceans worldwide but a new multi institution study shows the aquatic microbes themselves can drive nitrogen and phosphorus cycling in a ... - Read More
Bambootec consortium from Yucatán state in the south of Mexico designed a bamboo bicycle that transforms the kinetic energy generated by pedaling into a source of electricity that has the ability to simultaneously recharge mobile ... - Read More
To stay warm when temperatures drop outside we heat our indoor spaces even when no one is in them But scientists have now developed a novel nanowire coating for clothes that can both generate heat ... - Read More
Researchers from the University of Cambridge have developed a new self assembled material which by changing its shape can amplify small variations in temperature and concentration of biomolecules making them easier to detect The material ... - Read More
Though the past 15 years have seen an exciting run of creative scientific advances in fabricating three dimensional 3D structures by self folding of 2D sheets the complexity of structures achieved to date falls far ... - Read More
A new study into the pre industrial baseline levels of heavy metals in sediment carried by the Athabasca River shows that emissions from the Alberta oil sands and other human activities have not yet increased ... - Read More
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