Body

Discovery of tiny fossil new to science

'It is exciting to discover that a common group of fossils that we thought we knew a lot about may well have been hood-winking us as to their true identity, which we now realise because we have their beautifully fossilised soft-parts. A case of a 'wolf in sheep's clothing''- Professor David Siveter, University of Leicester

An international team of researchers have made an extremely rare discovery of a species of animal - related to crabs, lobsters and shrimps – that is new to science.

Researchers find algal ancestor is key to how deadly pathogens proliferate

Long ago, when life on our planet was in its infancy, a group of small single-celled algae floating in the vast prehistoric ocean swam freely by beating whip-like tails, called flagella. It's a relatively unremarkable tale, except that now, over 800 million years later, these organisms have evolved into parasites that threaten human health, and their algal past in the ocean may be the key to stopping them.

Taxes on sugary drinks and high fat foods could improve health

Taxes on soft drinks and foods high in saturated fats and subsidies for fruit and vegetables could lead to beneficial dietary changes and potentially improve health, according to a study by experts from New Zealand published in this week's PLOS Medicine.

Long-term public health support needed to tackle infectious disease outbreaks

Outbreaks of infectious diseases, such as swine flu (H1N1) threaten global health and should be considered by funding agencies and humanitarian organizations as development issues rather than emergency situations, requiring long-term support and investment, according to US experts writing in this week's PLOS Medicine.

Resurrection of extinct enzymes reveals evolutionary strategy for the invention of new functions

How does evolution innovate? We exist because our ancestors have had the ability to adapt successfully to changes in their environment; however, merely examining present-day organisms can limit our understanding of the actual evolutionary processes because the crucial events have been masked by the passage of aeons – what we need is a time machine.

Research team recognizes predator-producing bacteria

Unique viruses called bacteriophages may play an important role in competition among bacterial strains, influencing the overall ecosystem of the human intestine, scientists at The University of Texas at Arlington and UT Southwestern Medical Center say.

Even moderate smoking associated with sudden death risk in women

Women who are even light-to-moderate cigarette smokers may be significantly more likely than nonsmokers to suffer sudden cardiac death, according to new research in Circulation: Arrhythmia & Electrophysiology, an American Heart Association journal.

The findings indicate long-term smokers may be at even greater risk. But quitting smoking can reduce and eliminate the risk over time.

Fish have enormous nutrient impacts on marine ecosystems, study finds

Athens, Ga. – Fish play a far more important role as contributors of nutrients to marine ecosystems than previously thought, according to researchers at the University of Georgia and Florida International University. In a pair of papers in the journal Ecology, they show that fish contribute more nutrients to their local ecosystems than any other source—enough to cause changes in the growth rates of the organisms at the base of the food web.

My, what big teeth you have! Threatening objects appear closer

When we're faced with things that seem threatening, whether it's a hairy spider or an angry mob, our goal is usually to get as far away as we can. Now, new research suggests that our visual perception may actually be biased to help motivate us to get out of harm's way.

Capturing circulating cancer cells could provide insights into how disease spreads

ANN ARBOR—A glass plate with a nanoscale roughness could be a simple way for scientists to capture and study the circulating tumor cells that carry cancer around the body through the bloodstream.

Engineering and medical researchers at the University of Michigan have devised such a set-up, which they say takes advantage of cancer cells' stronger drive to settle and bind compared with normal blood cells.

New research helps predict susceptibility to Burkitt lymphoma

WASHINGTON (Dec. 11, 2012) – New research, presented this morning at the 54th Annual Meeting of the American Society of Hematology (ASH), has identified important associations between Plasmodium falciparum (Pf) malaria and endemic Burkitt Lymphoma (eBL) that may help researchers identify young children who are more susceptible to eBL.

Battling brittle bones... with broccoli and spinach?

Troy, N.Y. – A new study from engineering researchers at Rensselaer Polytechnic Institute shows, for the first time, how the little-understood protein osteocalcin plays a significant role in the strength of our bones. The findings could lead to new strategies and therapeutics for fighting osteoporosis and lowering the risk of bone fracture.

Reports assess global student achievement in math, science and reading literacy

CHESTNUT HILL, Mass. (12-11-12)—Students from East Asian countries, in addition to a select group of European countries, outperformed students around the world in mathematics, science and reading at both the fourth and eighth grades, according to results released Dec. 11 by Lynch School of Education Professors Ina V.S. Mullis and Michael O. Martin, executive directors of the TIMSS & PIRLS International Study Center.

Holiday shopping madness: When do consumers seek to punish fellow shoppers for behaving badly?

Consumers seek to punish fellow consumers who violate social norms while shopping but also make exceptions depending on the situation, according to a new study in the Journal of Consumer Research.

How do stay-at-home dads seek greater social acceptance?

In order to avoid the stigma and loss of status posed by their lifestyle choice, stay-at-home fathers are mobilizing to build greater legitimacy for their marginalized gender identity, according to a new study in the Journal of Consumer Research.