People who have lost the ability to interpret emotion after a severe brain injury can regain this vital social skill by being re-educated to read body language, facial expressions and voice tone in others, according to a new study.

The research, published in the Journal of Head Trauma Rehabilitation, reveals that appropriate training can result in significant gains in "emotional perception", which is crucial for successful social communication.

The study involved 18 participants recruited from an outpatient service at the Liverpool Hospital Brain Injury Rehabilitation Unit, in Sydney, Australia. All had experienced a severe traumatic brain injury at least six months earlier and had significantly impaired ability to interpret emotions in others.

The health threat to city dwellers posed by Southern California wildfires like those of November 2008 may have been underestimated by officials, according to a new paper analyzing particulate matter (PM) from wildfires in Southern California.  Detailed particulate analysis of the smoke produced by previous California wild fires indicates that the composition posed more serious potential threats to health than is generally realized..

Lithium-ion batteries don't get a lot of respect these days, what with everyone talking about magical future batteries that are cheaper and won't make you Prius owners cause acid rain.  They're everywhere still and they provide portable devices that require a lot of energy, such as mobile telephones, digital cameras, and notebook computers, with power. However, their capacity, and thus the running time of the devices, remain somewhat limited - a notebook computer usually runs only about two hours.

More than 11,000 alien species have been documented by DAISIE (Delivering Alien Invasive Species Inventory for Europe), a unique three year research project with more than 100 European scientists, funded by the European Union that provides new knowledge on biological invasions in Europe. Biological invasions by alien species often result in a significant loss in the economic value, biological diversity and function of invaded ecosystems. 

University of Alberta research has yielded a way to double the output of rice crops in some of the world's poorest, most distressed areas.

Jerome Bernier, a PhD student in the U of A Department of Agricultural, Food and Nutritional Science, has found a group of genes in rice that enables a yield of up to 100 per cent more in severe drought conditions. 

The discovery marks the first time this group of genes in rice has been identified, and could potentially bring relief to farmers in countries like India and Thailand, where rice crops are regularly faced with drought. Rice is the number one crop consumed by humans annually.

The explosion of a binary star inside a planetary nebula has been captured by a team of researchers – an event that has not been witnessed for more than 100 years. The study, published in Astrophysical Journal Letters, predicts that the combined mass of the two stars in the system may be high enough for the stars to eventually spiral into each other, triggering an even larger supernova explosion.