Product bundling is a common marketing strategy but retailers need to draw attention to the value of a package deal since consumers prefer products that are packaged individually.

"The advantages of bundling products may not be as straightforward as previously thought. Consumers may not always be aware of a bundle's added value over a single item and this could undermine the entire purpose of the bundling strategy. Without drawing attention to a product bundle's added value, a bundle may not be perceived as more attractive than the respective single product without the add-on," write authors Tobias Krüger, André Mata, and Max Ihmels (all University of Heidelberg).

Teenagers with brothers and sisters who exhibit severe antisocial behavior share a similar impairment with their siblings in recognizing emotions, according to a new study from the University of Southampton.

The findings suggest that difficulties in recognizing emotions could be a factor that increases a child's risk of developing conduct disorder - a condition characterized by pathological aggression and antisocial behavior.

A team of scientists have shown that meltwater from the surface of an ice cap in northeastern Greenland can make its way beneath the ice and become trapped, refilling a subglacial lake. This meltwater provides heat to the bottom of the ice sheet.

The findings provide new information about atmospheric warming and its affect on the critical zone at the base of the ice. The warmth provided by the water could make the ice sheet move faster and alter how it responds to the changing climate.

People are more successful in taking up healthy habits if their partner makes positive changes too, according to research* published in JAMA Internal Medicine today (Monday).

Scientists at UCL funded by Cancer Research UK, the British Heart Foundation, and the National Institute on Aging looked at how likely people were to quit smoking, start being active, or lose weight in relation to what their partner did.**

They found that people were more successful in swapping bad habits for good ones if their partner made a change as well.

Carbon sequestration promises to address greenhouse-gas emissions by capturing carbon dioxide from the atmosphere and injecting it deep below the Earth's surface, where it would permanently solidify into rock. The U.S. Environmental Protection Agency estimates that current carbon-sequestration technologies may eliminate up to 90 percent of carbon dioxide emissions from coal-fired power plants.

While such technologies may successfully remove greenhouse gases from the atmosphere, researchers in the Department of Earth, Atmospheric and Planetary Sciences at MIT have found that once injected into the ground, less carbon dioxide is converted to rock than previously imagined.

Researchers have revealed that the colonization of the gut of young mice by certain types of bacteria can lead to immune responses later in life that are linked to disease. Increases in the levels of segmented filamentous bacteria can trigger changes in the lymphoid tissue of the mouse gut that result in the production of antibodies that attack components of the cell nucleus. This type of damage is a hallmark of autoimmune diseases like systemic lupus erythematosus and systemic sclerosis where organs throughout the body are damaged by wayward immune responses. The findings are published in The EMBO Journal.

By Andrew Frederick Johnson, University of California, San Diego

By Anton Wallner, Australian National University

Our understanding of heavy element production in supernovae, exploding stars way beyond our solar system, may need to change following some discoveries we have made looking not to the skies, but deep under our oceans.

Supernova explosions are one of the most violent events in our galaxy and are thought to produce elements essential for life such as iron and iodine but also some of the heaviest elements existing in nature.

When a star goes supernova and explodes, these heavy elements are thrown out into space as dust and debris.