News

Mar 30, 2012 04:27 PM EDT

Penn Biologists Identify a Key Enzyme Involved in Protecting Nerves from Degeneration

A new animal model of nerve injury has brought to light a critical role of an enzyme called Nmnat in nerve fiber maintenance and neuroprotection. Understanding biological pathways involved in maintaining healthy nerves and clearing away damaged ones may offer scientists targets for drugs to mitigate...

Planet under pressure
Mar 30, 2012 04:18 PM EDT

Planet under Pressure Conference, London: Final Statement

Scientists issued the first "State of the Planet" declaration at a major gathering of experts on global environmental and social issues in advance of the major UN Summit Rio+20 in June.

Hominin
Mar 30, 2012 03:46 PM EDT

Newly Discovered Foot Points to a New Kid on the Hominin Block

It seems that "Lucy" was not the only hominin on the block in northern Africa about 3 million years ago.

Robo reader
Mar 30, 2012 01:49 PM EDT

Robo-readers: the New Teachers' Helper in the U.S.

American high school students are terrible writers, and one education reform group thinks it has an answer: robots.

Ghosts of Reefs Past
Mar 30, 2012 12:20 PM EDT

Declines in Caribbean Coral Reefs Pre-date Damage Resulting from Climate Change

The decline of Caribbean coral reefs has been linked to the recent effects of human-induced climate change. However, new research led by scientists at Scripps Institution of Oceanography at UC San Diego suggests an even earlier cause. The bad news – humans are still to blame. The good news â...

Gold mining
Mar 30, 2012 11:45 AM EDT

True Economic Measure Includes Natural Assets: Scientists

Traditional measures showing strong economic growth in Brazil and India over nearly two decades fail to take account of the depletion of their natural resources, scientists and economists at a climate conference said on Wednesday.

Bees
Mar 30, 2012 11:24 AM EDT

Bees 'Self-medicate' When Infected with Some Pathogens

Research from North Carolina State University shows that honey bees "self-medicate" when their colony is infected with a harmful fungus, bringing in increased amounts of antifungal plant resins to ward off the pathogen.

Tropical forest
Mar 30, 2012 10:51 AM EDT

Extreme Weather Threatens Rich Ecosystems

Extreme weather such as hurricanes, torrential downpours and droughts will become more frequent in pace with global warming. Consequently, this increases the risk for species extinction, especially in bio diverse ecosystems such as coral reefs and tropical rainforests.

Mar 30, 2012 10:21 AM EDT

Starvation Linked to Greater Risk of Cardiac Complications

Russians born during the Leningrad Siege in World War II, which was responsible for some of the greatest losses of civilian life in history, are giving scientists new strategies to identify people who experienced intrauterine growth restriction (IUGR) and starvation during childhood at greatest risk...

Antonio Ereditato
Mar 30, 2012 10:01 AM EDT

"Speed of light" Experiment Professor Resigns

The Italian professor who led an experiment which initially appeared to challenge one of the fundaments of modern physics by showing particles moving faster than the speed of light, has resigned after the finding was overturned earlier this month.

High Water along the Isaac River
Mar 30, 2012 09:41 AM EDT

High Water along the Isaac River

The Fitzroy River flows through eastern Queensland and empties into the ocean near the city of Rockhampton. One of the Fitzroy's tributaries is the Isaac River, which is itself fed by impermanent rivers to the north. Heavy rains swelled the Isaac River substantially in late March 2012. The Moderate ...

Cantaloupe Preparation for the Electronic Nose
Mar 30, 2012 09:33 AM EDT

The Electronic Nose Knows When Your Cantaloupe Is Ripe

Have you ever been disappointed by a cantaloupe from the grocery store? Too ripe? Not ripe enough? Luckily for you, researchers from the University of California, Davis might have found a way to make imperfectly ripe fruit a thing of the past. The method will be published on March 30 in the Journal ...

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