Science | WPN World People News

Schematic diagram illustrating the concept of a prevascularized hydrogel. The adjacent fibers could be used to pattern other cell types around the vessels.

World Wildlife Fund (WWF) issued the following statement from Keya Chatterjee, director of renewable energy and footprint outreach, about Global Footprint Network announcement that humanity has exhausted Earth’s resource budget for the year.

Changes in Australia's mass as reported by data from NASA's Gravity Recovery and Climate Experiment (GRACE) satellites from June 2010 to February 2011. Areas in greens and blues depict the greatest increases in mass, caused by excessive precipitation. The contour lines represent various land surface elevations. A new study co-authored and co-funded by NASA finds extensive flooding in Australia, combined with the continent's soils and unique topography, were the biggest contributors to the drop in global sea level observed in 2010 and 2011.

The global shift towards making research findings available free of charge for readers—so-called 'open access'—was confirmed in a study funded by the European Commission. This new research suggests that open access is reaching the tipping point, with around 50% of scientific papers published in 2011 now available for free. This is about twice the level estimated in previous studies, explained by a refined methodology and a wider definition of open access. The study also estimates that more than 40% of scientific peer reviewed articles published worldwide between 2004 and 2011 are now available online in open access form. The study looks at the EU and some neighbouring countries, as well as Brazil, Canada, Japan and United States of America.

A new three-in-one optical element can control light’s amplitude, phase, and polarization through a wedding of old-fashioned holograms and state-of-the-art nanoscale features.

http://healthfinder.gov/News/Article/679309/lead-exposure-tied-to-early-...

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have obtained a vivid close-up view of material streaming away from a newborn star. By looking at the glow coming from carbon monoxide molecules in an object called Herbig-Haro 46/47 they have discovered that its jets are even more energetic than previously thought. The very detailed new images have also revealed a previously unknown jet pointing in a totally different direction.

This view from NASA's Mars Exploration Rover Opportunity shows an area where a pale-toned geological unit called the "Burns Foundation," in the foreground, abuts a different geological unit. The darker unit, believed to be older, marks the edge of "Solander Point," a raised segment of the western rim of Endeavour Crater.