HATFIELD, England, June 19 /PRNewswire/ --

- Independent Research Backs Ocado as Greenest Grocer

Shopping with Ocado (http://www.ocado.com) is now greener than shopping in a conventional supermarket, even if you are walking to the store.

The claim has been confirmed by independent carbon management consultancy Greenstone as part of a detailed audit of Ocado's environmental business performance.

ROME, June 19 /PRNewswire/ --

- Institute will focus on Policy Solutions to Protect Personal Data in the Digital Age in Italy and the European Union

A group of prominent Italian privacy advocates and jurists have launched the Italian Institute for Privacy (www.istitutoitalianoprivacy.it/en/), a public policy think tank focused on improving privacy protection in the digital age. This broad-based coalition of prominent Italians will focus its efforts on the protection of personal privacy online for citizens in Italy and throughout Europe.

A research team from the University of the Basque Country, led by Basilio Sierra, is devising a robot that can identify different locations and will even ask permission before going through a doorway.

Let's face it, robots are boring. They never came close to cleaning our houses or delving into Asimovian angst about their existence.

A robot that can walk around without having every move programmed and can make decisions for itself is a start. The Autonomous Robotics and Systems Research Team at the University of the Basque Country (UPV/EHU) are involved in increasing the autonomy of robots so that they are evermore capable of carrying out more tasks on their own. They started with Marisorgin, the robot for distributing mail, and are making further advances with Tartalo.

Nitrogen is essential to all life on Earth, and determines how much carbon dioxide ecosystems can absorb from the atmosphere, says UC Davis assistant professor Benjamin Houlton.

There are puzzling aspects of the nitrogen cycle in temperate and tropical forests. Defying laws of supply and demand, trees capable of extracting nitrogen directly from the atmosphere, nitrogen fixation, often thrive where it is readily available in the soil, but not where it is in short supply.

Houlton tackled the problem with colleagues including top international ecologist Peter Vitousek, the Clifford G. Morrison Professor in Population and Resource Studies at Stanford University.

Patients diagnosed with colon cancer who had abundant vitamin D in their blood were less likely to die during a follow-up period than those who were deficient in the vitamin, according to a new study by scientists at Dana-Farber Cancer Institute.

The findings of the study -- the first to examine the effect of vitamin D among colorectal cancer patients -- merit further research, but it is too early to recommend supplements as a part of treatment, say the investigators from Dana-Farber and the Harvard School of Public Health.

In a report in the June 20 issue of the Journal of Clinical Oncology, the authors note that previous research has shown that higher levels of vitamin D reduce the risk of developing colon and rectal cancer by about 50 percent, but the effect on outcomes wasn't kno

NASA hopes to use the the new Walt Disney Studios Motion Pictures film WALL-Eto promote interest among schoolchildren in science and technology. They have signed a Space Act Agreement for a series of educational and public outreach activities related to Disney-Pixar's new movie opening in theaters nationwide on June 27, 2008.

This collaboration highlights the similarities between the movie's storyline and NASA's real-life work in robot technology, propulsion systems and astrophysics. Disney-Pixar's WALL-E is set 700 years in the future. The film's main character is the only rover-robot left on Earth. He meets a new robot named Eve, and together they take a journey through the universe.

Disney has designed a 30-second public service announcement featuring WALL-E for NASA's television channels and Web site. The video is designed to draw students to NASA's Web site to explore the agency's missions. The WALL-E character also will be featured on NASA's Kids' Club page. In addition, Disney has designed a "movie surfer vignette" about WALL-E that touches on science and technology that drives NASA's programs, which began airing on the Disney Channel in June.

The newly sequenced genome of a dainty, quill-like sea creature called a lancelet provides the best evidence yet that vertebrates evolved over the past 550 million years through a four-fold duplication of the genes of more primitive ancestors.

The late geneticist Susumu Ohno argued in 1970 that gene duplication was the most important force in the evolution of higher organisms, and Ohno's theory was the basis for original estimates that the human genome must contain up to 100,000 distinct genes.

Instead, the Human Genome Project found that humans today have only 20,000 to 25,000 genes, which means that, if our ancestors' primitive genome doubled and redoubled, most of the duplicate copies of genes must have been lost. An analysis of the lancelet, or amphioxus, genome, published in the June 19 issue of Nature, shows this to be the case.

SOLLENTUNA, Sweden, June 18 /PRNewswire/ --

- Gains Access to In Vitro Diagnostic Technologies in Development for Use in Point-of-Care Settings

Two stars, each with the same mass and in orbit around each other, are twins that one would expect to be identical. So astronomers were surprised when they discovered that twin stars in the Orion Nebula, a well-known stellar nursery 1,500 light years away, were not identical at all. In fact, these stars exhibited significant differences in brightness, surface temperature and possibly even size.

The study published in the June 19 Nature suggests that one of the stars formed significantly earlier than its twin. Because astrophysicists have assumed that binary stars form simultaneously, the discovery provides an important new challenge for today's star formation theories, forcing theorists to reexamine their models to see if the models can indeed produce binaries with stars that form at different times.