• Compact, high-power terahertz source at room temperature developed

    Terahertz (THz) radiation — radiation in the wavelength range of 30 to 300 microns — is gaining attention due to its applications in security screening, medical and industrial imaging, agricultural inspection, astronomical research, and other areas. Traditional methods of generating terahertz radiation usually involve large and expensive instruments, some of which also require cryogenic cooling. Researchers have developed a compact, room-temperature terahertz source with an output power of 215 microwatts.

  • ACS: Shutdown undermines U.S. innovation, competitiveness, critical services

    American Chemical Society (ACS) president Marinda Li Wu said that the budget impasse is effectively choking America’s science innovation pipeline, strangling new discoveries, future economic growth, and job creation. “[T]o shut down a critical part of our nation’s research and innovation pipeline puts our nation at a severe competitive disadvantage globally,” said Wu. “A government shutdown that closes the world’s largest research system can lead to unintended negative consequences putting at peril America’s economic growth and long-term stability.”

  • Research investments, growing markets drive rise in energy patents

    Innovation in energy technology is booming, according to a new paper which examines what factors set the pace for energy innovation. The study finds that investments in research and development, as well as in the growth of markets for these products, have helped to spur this dramatic growth in innovation.

  • Long-term trend of saltwater intrusion in the Everglades confirmed

    Mangroves love salt water, while sawgrass depends on fresh water. Satellite imagery over the southeastern Everglades confirms long-term trends of mangrove expansion and sawgrass habitat loss near the shore. The trend is related to salt water intrusion caused by sea-level rise and water management practices. Changes in water management, such as the implementation of the Comprehensive Everglades Restoration Plan, may help offset the possible effects caused by future salt water intrusion, but restoration may not suffice if sea-level rise accelerates.

  • N.J. coastal wetlands moderated some of Hurricane Sandy’s fury

    Monitoring sensors along the New Jersey coast recorded marsh and wetland swelling during Hurricane Sandy. That swelling is an indication of marshes’ ability to absorb some of the storm surge — which, in hard-hit urban areas, had resulted in high water marks up to seven feet during Hurricane Sandy. Resilient, healthy wetlands near coastal areas have a key role in protecting local communities from hurricane-induced storm surges and flooding.

  • Policies governing rural land use can curb wildfire risks – up to a point

    Using Montana’s fast-growing Flathead County as a template, researchers hves found that moderately restrictive land-use policies can significantly curb the potential damage of rural wildfires. Highly restrictive planning laws, however, will not do much more.

  • U.S. adults fare poorly on international skill test

    A just-completed international test of adults in math, reading, and problem-solving using technology offers a grim message to the United States. The test focused on skills deemed critical for global competitiveness and economic strength, and American adults scored below the international average. It tested about 166,000 people ages 16 to 65 in thirty-three countries and subnational regions. Adults in Japan, Canada, Australia, Finland, and multiple other countries scored significantly higher than American adults in all three areas on the test.

  • USAF partners with national labs to improve aircraft component design

    Working with national laboratories, universities, and industry, the Air Force is ensuring it stays on the cutting edge of global security by creating a new engineering paradigm to improve the safety and fuel-efficiency of aircraft.Materials research engineers at the Air Force Research Laboratory (AFRL) have partnered with national laboratories to model defects and study materials at their grain level in an effort to develop and advance the design of systems used by the military personnel, including aircraft.

  • First ever evidence discovered of a comet striking Earth

    The first ever evidence of a comet entering Earth’s atmosphere and exploding, raining down a shock wave of fire which obliterated every life form in its path, has been discovered. The comet entered Earth’s atmosphere above Egypt about twenty-eight million years ago. As it entered the atmosphere, it exploded, heating up the sand beneath it to a temperature of about 2,000 degrees Celsius, and resulting in the formation of a huge amount of yellow silica glass which lies scattered over a 6,000 square kilometer area in the Sahara.

  • Reducing urban water leakage

    No resource is more fundamental to life and human society than water. Yet, globally, 25 to 30 percent of drinking water is lost every year due to leakages in urban water distribution systems. An EU-funded project is proposing an innovative solution for the automatic detection, sealing, and curing of typical network pipes, without digging up pavements and roads.

  • Bolstering water security in a crowded world

    With limited water and the increasing number of people depending on it – there will be more than nine billion people on the planet by 2050 — water security is tenuous. Integrated water management plans using “blue,” “green,” and “gray” water, however, can increase water security by allowing agriculture to rise to the challenge of feeding a growing world population while leaving enough water for other uses.

  • Government shutdown stymies U.S. science agencies

    A U.S. Government furloughs affecting virtually all National Science Foundation (NSF) employees and three-fourths of those at the National Institutes of Health could impact American competitiveness, the American Association for the Advancement of Science (AAAS) warned. “If the government shutdown continues for a week or more, it is going to make the United States less desirable as an international research collaborator,” said an AAAS representative. “When funding is no longer reliable, many of our research partners may be unable to continue collaborating with us. That could eventually have longer-term impacts on American innovation and competitiveness.”

  • Reducing security threats from explosives

    Researchers, as part of the Awareness and Localization of Explosives-Related Threats center (ALERT), a DHS Center of Excellence, are working on ways to detect explosives and neutralize their impact. The researchers are developing portable detectors as well as larger systems to scan for explosives. Some technologies will analyze the spectrum of light shining through vaporized samples; others will analyze solid residues.

  • Delaware prepares for sea-level rise

    Benjamin Franklin said that that an ounce of prevention is worth a pound of cure, and Governor Jack Markell of Delaware agrees. Two weeks ago he unveiled an initiative aiming to prepare his state for the effects of climate change and sea-level rise. Markell has signed an executive order requiring all state agencies to take sea-level rise into account when designing and locating state projects. The order also requires development of strategies to make state facilities and operations better prepared to deal with climate change and sea-level rise.

  • Radioactive shale gas contaminants seep into a Pennsylvania creek

    Researchers examined the quality of shale gas wastewater from hydraulic fracturing and the stream water above and below the disposal site in western Pennsylvania. Elevated levels of radioactivity, salts, and metals have been found in river water and sediments at a site where treated water from oil and gas operations is discharged into a creek.