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Children who frequently change schools are more likely than those who don’t to have behavioral health problems, according to a new Cincinnati Children’s Hospital Medical Center study.

The study, to be presented Sunday, May 4, at the annual meeting of the Pediatric Academic Societies in Seattle, shows that school mobility is an independent predictor of behavioral problems – regardless of one’s race, income, maternal education level or any other factor measured in the study.

“Transit

Computer security researchers suggest ways to thwart new form of cybercrime

Most experts on computer crime focus on attacks against Web servers, bank account tampering and other mischief confined to the digital world. But by using little more than a Web search engine and some simple software, a computer-savvy criminal or terrorist could easily leap beyond the boundaries of cyberspace to wreak havoc in the physical world, a team of Internet security researchers has concluded.

Pioneering research carried out by Kingston University is helping to pave the way for a manned mission to Mars. A project team based at the University’s School of Engineering has developed a robotic micro-rover to travel the Martian surface to find out whether humans could live in the Red Planet’s hostile environment.

Named Endurance, the small self-propelled vehicle will be powered by the sun’s rays and equipped to drill beneath the surface to find out if life exists on Mars in the form of

Several industrial activities of the previous decades resulted in serious contamination of groundwater. For instance, polyvinyl chloride (PVC) production and related activities cause annual underground releases of 137 tonnes of 1,2-dichloroethane (1,2-DCA) in the USA (1988-1999). The latter molecule has an environmental half-life of about 50 years, is the most abundant groundwater pollutant of all chloroethenes and –ethanes, and is a suspected carcinogen. Its physico-chemical properties result in a s

Humans are not alone in creating ‘signposts’ to help them find their way, according to new research published in the open access journal BMC Ecology. Wood mice, say scientists, move objects from their environment around using them as portable signposts whilst they explore.

The finding is significant as this is the first time such sophisticated behaviour has been identified in any mammal except humans. According to the authors,

“This is precisely how a human might tackle the pro

VLT Spectra Indicate Shortest-Known-Period Planet Orbiting OGLE-TR-3

More than 100 exoplanets in orbit around stars other than the Sun have been found so far. But while their orbital periods and distances from their central stars are well known, their true masses cannot be determined with certainty, only lower limits.

This fundamental limitation is inherent in the common observational method to discover exoplanets – the measurements of small and regular changes in the centra