Tech

The first bio-inspired microrobot capable of not just walking on water like the water strider – but continuously jumping up and down like a real water strider – now is a reality. Scientists reported development of the agile microrobot, which could use its jumping ability to avoid obstacles on reconnaissance or other missions, in ACS Applied Materials & Interfaces.

AUSTIN, Texas — Physicists at The University of Texas at Austin, in collaboration with colleagues in Taiwan and China, have developed the world's smallest semiconductor laser, a breakthrough for emerging photonic technology with applications from computing to medicine.

The scientists report their efforts in this week's Science.

Sixty years after the transistor began a technological revolution that transformed nearly every aspect of our daily lives, a new transistor brings innovations that may help to do so again. Developed at RIKEN, the device uses the electrostatic accumulation of electrical charge on the surface of a strongly-correlated material to trigger bulk switching of electronic state.

In a statement on the chances and limits of using bioenergy, the German National Academy of Sciences Leopoldina has come to the conclusion that in quantitative terms, bioenergy plays a minor role in the transition to renewable, sustainable energy sources in Germany at the present time and probably in the future. Bioenergy requires more surface area, is associated with higher greenhouse gas emissions and is more harmful to the environment than other renewable sources such as photovoltaic, solar thermal energy and wind energy. In addition, energy crops potentially compete with food crops.

Amsterdam, July 26, 2012 - Surveys of drug use form an important basis for the development of effective drug policies, and also for measuring the effectiveness of existing policies. For the first time in history, scientists have now made direct comparisons of illicit drug use in 19 European cities by a cooperative analysis of raw sewage samples.

Scientists have discovered a thriving population of Mediterranean earthworms in an urban farm in Dublin, Ireland.

The findings by University College Dublin scientists published in the journal Biology Letters on 25 July 2012 suggest that rising soil temperatures due to climate change may be extending the geographical habitat range of the earthworm Prosellodrilus amplisetosus.

ARLINGTON, Va.—The Office of Naval Research (ONR) is looking at birds' perceptual and maneuvering abilities as inspiration for small unmanned aerial vehicle (UAV) autonomy, and Popular Science is featuring this effort in its August issue, posted online July 25.

Leipzig. Fungi are found throughout the soil with giant braiding of fine threads. However, these networks have surprising functions. Only a few years ago researchers from the Helmholtz Centre for Environmental Research (UFZ) discovered that bacteria travel over the fungal threads through the labyrinth of soil pores, much the same as on a highway. Now, together with British colleagues from the University of Lancaster, the UFZ researchers have come upon another phenomenon. Accordingly, the fungal networks also transports contaminants which are otherwise largely immobile in the ground.

Researchers from the University of Southampton have devised a novel method for forming virtual power plants to provide renewable energy production in the UK.

In the last decade, small and distributed energy resources (DERs), like wind farms and solar panels, have begun to appear in greater numbers in the electricity supply network (Grid).

CHAMPAIGN, Ill. — Researchers could have a new method to rebuild wetlands of the Louisiana delta, thanks to a chance finding while monitoring severe flooding of the Mississippi River.

A team of civil engineers and geologists from the University of Illinois, in collaboration with the U.S. Army Corps of Engineers, published their findings in the journal Nature Geoscience.

Programmed cell death (PCD) is a highly regulated process that occurs in all animals and plants as part of normal development and in response to the environment. New research published in BioMed Central's open access journal BMC Plant Biology is the first to document the physiological events in the lace plant (Aponogeton madagascariensis) which occur via PCD to produce the characteristic holes in its leaves.

Do you have what it takes to be an ethical hacker? Can you step into the shoes of a professional paid to outsmart supposedly locked-down systems? Now you can at least try, no matter what your background, with a new card game developed by University of Washington computer scientists.

"Control-Alt-Hack" gives teenage and young-adult players a taste of what it means to be a computer-security professional defending against an ever-expanding range of digital threats. The game's creators will present it this week in Las Vegas at Black Hat 2012, an annual information-security meeting.

A Cleveland Clinic research team is developing virtual models of human knee joints to better understand how tissues and their individual cells react to heavy loads – virtual models that someday can be used to understand damage mechanisms caused by the aging process or by debilitating diseases, such as osteoarthritis.

Papers on how best to identify trending stories on Twitter and on just how cool computers in data centers need to be kept has won accolades for faculty and students from UTSC's Department of Computer & Mathematical Sciences.

Nick Koudas, UTSC computer science professor, and his graduate students Albert Angel and Nikos Sarkas, won the Best Paper award for the Very Large Databases Conference, which they will present at the meeting in Istanbul in August.

Population-wide levels of HIV virus dropped substantially between 2011 and May 2012 in a rural part of southwestern Uganda, the site of two community health campaigns led by doctors at the University of California, San Francisco (UCSF), San Francisco General Hospital and Trauma Center (SFGH) and Makerere University in Kampala, Uganda.