Tech

CIC nanoGUNE develops Nano-FTIR-nanoscale infrared spectroscopy with a thermal source

Researchers from the Basque nanoscience research center CIC nanoGUNE and Neaspec GmbH (Germany) have developed an instrument that allows for recording infrared spectra with a thermal source at a resolution that is 100 times better than in conventional infrared spectroscopy. In future, the technique could be applied for analyzing the local chemical composition and structure of nanoscale materials in polymer composites, semiconductor devices, minerals or biological tissue. The work is published in Nature Materials.

The ethics of biofuels

An article in the current issue of Global Change Biology Bioenergy outlines a framework for evaluating biofuels in order to address ethical issues surrounding the rapidly evolving race to develop biofuels.

Zombie ants have fungus on the brain

Tropical carpenter ants (Camponotus leonardi) live high up in the rainforest canopy. When infected by a parasitic fungus (Ophiocordyceps unilateralis) the behaviour of the ants is dramatically changed. They become erratic and zombie-like, and are manipulated by the fungus into dying at a spot that provides optimal conditions for fungal reproduction. New research, published in BioMed Central's open access journal BMC Ecology, looks at altered behaviour patterns in Zombie ants in Thailand and shows how the fungus manipulates ant behaviour.

Graphene optical modulators could lead to ultrafast communications

Berkeley — Scientists at the University of California, Berkeley, have demonstrated a new technology for graphene that could break the current speed limits in digital communications.

Computers sing to a better tune

Music producers have for decades had electronics tricks at their disposal for improving a recorded vocal performance. They can add a little reverb or echo to bolster a weak rendition, use effects such as phasing and delay to add color to the vocal, fix duff notes with auto-tuning or even reprogram a whole melody line in software. In recent years, voice synthesis for converting text to spoken word has improved considerably but combining that technology with auto-tuning capability allows computers to "sing".

Study probes sources of Mississippi River phosphorus

MADISON, WI MAY 5, 2011 – In their eagerness to cut nitrogen and phosphorus pollution in the Mississippi River and Gulf of Mexico, people have often sought simple explanations for the problem: too many large animal operations, for instance, or farmers who apply too much fertilizer, which then flows into waterways.

'Swiss cheese' design enables thin film silicon solar cells with potential for higher efficiencies

College Park, Md. (May 6, 2011) — A bold new design for thin film solar cells that requires significantly less silicon – and may boost their efficiency – is the result of an industry/academia collaboration between Oerlikon Solar in Switzerland and the Institute of Physics' photovoltaic group at the Academy of Sciences of the Czech Republic.

Spikemoss genome offers new paths for biofuels research -- bridges plant development gap

WALNUT CREEK, Calif.— It's not quite Christmas, but the DNA sequence of a small plant that resembles the seasonal conifers is providing biofuels researchers with information that could influence the development of candidate biofuel feedstock plants and offering botanists long-awaited insights into plant evolution.

When self-esteem is threatened, people pay with credit cards

Los Angeles, CA (April XX, 2011) People shop for high status items when they're feeling low, and they're more likely to make those expensive purchases on credit, according to a study in the current Social Psychological and Personality Science (published by SAGE).

It takes a community of soil microbes to protect plants from disease

Those vegetables you had for dinner may have once been protected by an immune system akin to the one that helps you fight disease. Scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and the Netherland's Wageningen University found that plants rely on a complex community of soil microbes to defend themselves against pathogens, much the way mammals harbor a raft of microbes to avoid infections.

Measurement of 'hot' electrons could have solar energy payoff

Basic scientific curiosity paid off in unexpected ways when Rice University researchers investigating the fundamental physics of nanomaterials discovered a new technology that could dramatically improve solar energy panels.

The research is described in a new paper this week in the journal Science.

Practice can make search-and-rescue robot operators more accurate

Urban search and rescue (USAR) task forces are essential for locating, stabilizing, and extricating people who become trapped in confined spaces following a catastrophic event. Sometimes the search area is too unstable for a live rescue team, so rescuers have turned to robots wielding video cameras. Most recently, the USAR robots have been employed by rescuers following the devastating Japanese earthquake and tsunami. The rescuers control, or teleoperate, from a safe location.

Robot based on Carnegie Mellon research engages novice computer scientists

PITTSBURGH—Learning how to program a computer to display the words "Hello World" once may have excited students, but that hoary chestnut of a lesson doesn't cut it in a world of videogames, smartphones and Twitter. One option to take its place and engage a new generation of students in computer programming is a Carnegie Mellon University-developed robot called Finch.

A product of CMU's famed Robotics Institute, Finch was designed specifically to make introductory computer science classes an engaging experience once again.

Seed mixtures and insurance pest management: Future norm in the Corn Belt?

As the use of biotechnology increases and more companies move forward with the U.S. Environmental Protection Agency's approval to begin full-scale commercialization of seed mixtures in transgenic insecticidal corn, many researchers believe pest monitoring will become even more difficult.

New online mechanism for electric vehicle charging

Researchers at the University of Southampton have designed a new pricing mechanism that could change the way in which electric vehicles are charged.

It is based on an online auction protocol that makes it possible to charge electric vehicles without overloading the local electricity network.