Collectors,museums and art dealers face a lot of problems determining origin, authenticity and discovery of forgery of artwork. Experts are easily fooled - but science, not so much.

They get help through the application of modern, non-destructive, "hi-tech" techniques.  Spectroscopy is a technique that has been useful in the fight against art fraud because it can determine chemical composition of pigments and binders, which is essential information in the hands of an art specialist in revealing fakes. As described in a recent paper, "…according to the FBI, the value of art fraud, forgery and theft is up to $6 billion per year, which makes it the third most lucrative crime in the world after drug trafficking and the illegal weapons trade." 

If you feel ill, chances are you go to the Internet before you see a doctor. Most Americans have seen dramatic rises in health care premiums thanks to new government mandates and penalties, but the cultural groundwork to visit doctors less was laid a decade ago in most developed nations. 

Professor Sue Ziebland, Director of the Health Experiences Research Grou at the University of Oxford, share findings with health practitioners and researchers at the South West Society for Academic Primary Care (SW SAPC) meeting at the University of Bristol on Thursday.

A theoretical study led by the University of Exeter has shed new light on the conditions that lead to the evolution of spite or altruism in structured populations.

Understanding the way in which social behaviours such as altruism – when animals benefit others at their own expense – develop is a long-standing problem that has generated thousands of articles and heated debates.

Dr Florence Débarre of Biosciences at the University of Exeter led a study, published today in Nature Communications, which presents a comprehensive framework that applies to a large class of population structures and identifies the crucial elements which support the evolution of social behaviour.

The uplifting effects of energy drinks are well advertised, but a new report finds consumption among teenagers may be linked with poor mental health and substance use.

Researchers are calling for limits on teen's access to the drinks and reduction in the amount of the caffeine in each can.

The paper by researchers at the University of Waterloo and Dalhousie University, published in Preventive Medicine, found that high school students prone to depression as well as those who are smoke marijuana or drink alcohol are more likely to consume energy drinks than their peers.

Millions of high school and college algebra students are united in a shared agony over solving for x and y, and for those to whom the answers don't come easily, it gets worse: Most preschoolers and kindergarteners can do some algebra before even entering a math class.

In a recently published study in the journal Developmental Science, lead author and post-doctoral fellow Melissa Kibbe and Lisa Feigenson, associate professor of psychological and brain sciences at Johns Hopkins University's Krieger School of Arts and Sciences, find that most preschoolers and kindergarteners, or children between 4 and 6, can do basic algebra naturally.

Light can trigger coordinated, wavelike motions of atoms in atom-thin layers of crystal, scientists have shown. The waves, called phonon polaritons, are far shorter than light waves and can be "tuned" to particular frequencies and amplitudes by varying the number of layers of crystal, they report in the early online edition of Science March 7.

These properties - observed in this class of material for the first time - open the possibility of using polaritons to convey information in tight spaces, create images at far finer resolution than is possible with light, and manage the flow of heat in nanoscale devices.