The capacity to resist peer pressure in early adolescence may depend on the strength of connections between certain areas of the brain, according to a study carried out by University of Nottingham researchers.

New findings suggest that enhanced connections across brain regions involved in decision-making may underlie an individual’s ability to resist the influence of peers.

The study suggests that brain regions which regulate different aspects of behaviour are more interconnected in children with high resistance to peer influence.

Penguin guano in the Antarctic is adding to organic pollutant problems there, according to a report to be featured in a Royal Society of Chemistry publication.

Adrian Covaci at the University of Antwerp, Belgium, and colleagues found unexpectedly high levels of organic pollutants in the soil around a colony of non-migratory Adelie penguins in the Antarctic.

Concerns about organic pollutant levels in the Antarctic have led to intensive studies into how they reach this remote region, said Covaci. The pollutants originate from man-made sources such as organochlorine pesticides and brominated flame retardants, he explained. The routes through which they normally travel are air and ocean currents.

The University of Bradford has unveiled a new ‘Ethical Tissue’ bank to provide UK biomedical researchers access to a wider range of human tissue and tissue products. The bank will operate on a not-for-profit basis and will provide access to human tissue and tissue products such as viable cells, cell fractions and arrays.

Leeds and Bradford Hospital Trusts, who currently provide tissue to the bank, work with patients and their families to provide information about the supply of tissue for research purposes and manage the consent procedures which underpin the bank’s high ethical standards. It is planned that this relationship will be extended to hospital trusts around the UK.

The project is possible through links with NHS Trusts, the NHS Blood and Transplant Tissue Services, transplant co-ordinators and other collaborators, who understand the importance of human tissue in biomedical research and are committed to supporting the activities of the University’s research tissue bank.

Cellulose is not digestible by humans, that's why it's considered dietary fiber. Plants produce it to use as their cell walls and to provide rigidity to their structure. Along with lignin and hemicellulose, cellulose makes up a large amount of the biomass produced by plants.

Some animals, ruminants and termites for example, can break down cellulose with the aid of bacteria that live in their digestive tract but most vertebrates derive little nutrition from it.

Penn State researchers now say careful pairing of bacteria can create a fuel cell that consumes cellulose and produces electricity.

Riders in the Tour de France are not only tremendous competitors, they are huge eaters, collectively polishing off enough food to feed a small village – more than 20 million calories – just to stay in the race, according to a fitness and nutrition researcher.

“That’s about the same as 72,000 cheeseburgers,” said Conrad Earnest, Ph.D., of the Pennington Biomedical Research Center.

“The riders have been in the saddle for more than 80 hours at full tilt,” Earnest said, “Each day, they put out more energy than it takes to run a marathon. So the 20-stage tour is like 20 marathons in a row, and to gain the necessary energy, each rider needs to eat the equivalent of 25 cheeseburgers a day to keep from losing too much weight, which ultimately hurts performance.”

Antipsychotic drugs are approved mainly for treating schizophrenia and bipolar disorder, but they are also used for many other purposes. One of the most controversial is reducing disruptive behavior among elderly people with dementia.

In the last few years, the FDA has required drug labels to carry warnings regarding this still-common practice, and studies continue to raise questions about its risks and benefits.

Concern about this issue is not new.