Using a mobile MRI scanner to image the brains of prison inmates, researchers have found that the brains of people who show signs of psychopathy are wired in a way that leads them to over-value immediate rewards and neglect the future consequences of potentially dangerous or immoral actions.

Researchers developed ways to temporarily eliminate the sense of smell in adult mice, and discovered that those mice that lost smell could eat a high-fat diet and stay a normal weight, while littermates that retained the sense of smell ballooned to twice normal weight. Supersmellers gained more weight than did normal mice on the same high-fat diet. Smell-deficient mice burned excess fat instead of storing it, suggesting a link between smell and metabolism.

A new method has been developed to image cancer at the single-cell level by using chemical techniques to make whole mouse bodies and organs highly transparent. Combining their preparation with existing imaging technology, they were able view cancer cells multiplying within organs, including the lungs, intestines, and liver, and traveling through the body to and from new tumors in distant locales.

Trihydrogen, or H3+, has been called the molecule that made the universe, where it plays a greater role in astrochemistry than any other molecule. While H3+ is astronomically abundant, no scientist understood the mechanisms that form it from organic molecules.

To help stem the tide of rhino poaching, some biotech companies are seeking to develop and manufacture synthetic horns that are identical to the real thing. New research shows that, for conservation purposes, it may be beneficial to produce synthetic horns that are engineered to be undesirable but difficult for buyers to distinguish from wild horns to create uncertainty in the market and drive out wild horn suppliers through adverse selection.

A new study has succeeded in observing the fertilization capacity of the sperm cell before its insemination in the oocyte. Researchers put male gametes in contact with the cytoplasm of female animal gametes to see if they perform their functions properly. The technology studies the incidence of sperm morphology, concentration, and motility in the embryo formation process.

Just like humans, many fish like to surround themselves with active companions -- but frisky friends also make for fierce competition. New research reveals that minnows would rather swim with their most active friends, even if they pose more of a threat.

A new study examined the impact on physician prices when two IDSs acquired three multispecialty clinic systems in the Minneapolis-St Paul market in 2007. To track prices, the team used commercial claims data from Medica health plans from 2006 to 2011.

Millions of U.S. residents take proton pump inhibitors which are widely prescribed to treat heartburn, ulcers and other gastrointestinal problems. Now, a new study shows that long-term use of the popular drugs carries an increased risk of death.

High water on Lake Ontario, urbanization of the New Jersey shore and a growing predator population are among the challenges facing one of America’s iconic shorebirds and the conservationists determined to restore the bird’s population.

Whether it’s for computer games, motion analysis in sports, or even medical examinations, many applications require that people and their movements are captured digitally in 3D in real-time. Until now, this was possible only with expensive systems of several cameras, or by having people wear special suits. Computer scientists have now developed a system that requires only a single video camera. It can even estimate the 3D pose of a person acting in a pre-recorded video, for instance a YouTube video.

Following a daily movement program can improve children’s physical development levels and has the potential to boost their chances in the classroom, researchers have found.

Scientists have explored on an atomic level how changes in iron content influence the micro-structure of samarium-cobalt based permanent magnets. In the long run, they could contribute to the development of permanent magnets with improved magnetic performance. These magnets can be found in microwave tubes, gyroscopes and satellite controls, for instance.

Parasites responsible for leishmaniasis -- a globally occurring neglected tropical disease spread by sand flies -- are mainly acquired from the skin rather than a person's blood, new research indicates.

Essential microbiological interactions that keep our oceans stable have been fully revealed for the first time, outlines a new report.