Researchers at Georgia Institute of Technology have demonstrated binary optical storage using nanoclusters of 2-8 silver atoms. The clusters can fluoresce when exposed to blue light, allowing for nondestructive reading with green light. This technique has the potential for high-density storage and parallel reading.
Researchers propose a new model of asthma that suggests epithelial cells play a crucial role in the development of the disease. They found that IL-12 p40 production is increased in airway epithelial cells during inflammation and is overactive in people with asthma.
A new sensing device developed by Virginia Tech engineers is set to reduce energy consumption and emissions in various industries. The self-calibrated interferometric/intensity based sensor has several advantages over existing semiconductor pressure sensors, including higher resolution and accuracy.
New theory proposes that iron-rich sediments are stuck to the bottom of the mantle, creating drag that throws off the Earth's wobble. Seismic waves slow down as they approach the core-mantle boundary, suggesting a thin layer of silicates may be present.
A UC Berkeley scientist proposes that chromosome reassortment, rather than genetic mutations, is the cause of cancer's tendency to develop drug resistance. This theory suggests aneuploid cells, with abnormal numbers of chromosomes, are more prone to producing drug-resistant cancer cells.