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Gaming Tool Provides Security Model

April 6, 2011 4:50 am | Videos | Comments

Researchers have developed a high-fidelity simulation and analysis program that aids policy and decision-makers tasked with making key procurements and funding choices. The model uses a serious gaming platform known as Ground Truth.

Stem Cell Switch Can Heal Skin

April 6, 2011 4:48 am | News | Comments

Bone marrow cells that transform into skin cells could be used to repair damaged skin tissue. Researchers have uncovered how this process works, providing new insights into the mechanisms behind skin repair.

Thirsty Leaves Harm Soil Nutrients

April 6, 2011 4:46 am | News | Comments

Chemical changes in tree leaves subjected to warmer, drier conditions that could result from climate change may reduce the availability of soil nutrients.

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Early Earth Life Lived in Acidic Environment

April 6, 2011 4:45 am | News | Comments

A new study reveals that a group of ancient enzymes adapted to changes in ocean temperature and acidity during the last 4 billion years, meaning that life on early Earth evolved from a much hotter, more acidic environment.

Seen Any Bluebells? If So, Record Them!

April 6, 2011 4:43 am | News | Comments

Have you seen any bluebells yet? If you have, help scientists at the Natural History Museum and record your sighting in the bluebell survey.

Water Spillover May Shift Gulf Stream

April 6, 2011 4:41 am | News | Comments

Scientists are monitoring a massive pool of fresh water in the Arctic Ocean that could spill into the Atlantic and potentially alter the key ocean currents that give Western Europe its moderate climate.

Alga Cleans Up Nuclear Waste

April 5, 2011 10:23 am | News | Comments

A common freshwater alga acts like a sponge, soaking up one of the more dangerous radioactive materials created within a nuclear reactor.

Opportunity on the Edge

April 5, 2011 8:06 am | News | Comments

The High Resolution Imaging Science Experimentcamera on NASA's Mars Reconnaissance Orbiter acquired this color image last month of "Santa Maria" crater, showing NASA's Mars Exploration Rover Opportunity perched on the southeast rim.

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Increased R & D Can Yield Human Space Missions

April 5, 2011 8:00 am | News | Comments

By elevating its life and physical sciences research program, NASA could achieve the biological understanding and technical breakthroughs needed to allow humans to be sent deeper into space, including to Mars.

Strawberry Genome Aids More Complex Fruits

April 5, 2011 7:58 am | News | Comments

The genome of the woodland strawberry – a close relative of the apple that blooms in a mere 15 weeks expediates the sequencing process and lends clues about other, more complex fruits.

Arctic Ozone Layer Faces Record Loss

April 5, 2011 7:57 am | News | Comments

The depletion of the ozone layer shielding Earth from damaging ultraviolet rays has reached an unprecedented low over the Arctic this spring because of harmful chemicals and a cold winter.

Tree Rings Provide Climate Record

April 5, 2011 4:57 am | Videos | Comments

Trees are outstanding historians. In fact, scientists dating back to Leonardo da Vinci recognized the value of trees. Now, a researcher is developing tree-ring records of Mexico's climate variability.

Copper Eliminates MRSA

April 5, 2011 4:55 am | Videos | Comments

A live broadcast highlighted the effectiveness of antimicrobial copper in preventing the spread of antibiotic-resistant organisms, such as MRSA, in hospitals.

Poison May Be Source of Origin of Life

April 5, 2011 4:51 am | News | Comments

Formaldehyde, a poison and a common molecule throughout the universe, is likely the source of the solar system's organic carbon solids—abundant in both comets and asteroids.

Self-Cooling Observed in Graphene Electronics

April 5, 2011 4:49 am | News | Comments

With the first observation of thermoelectric effects at graphene contacts, researchers found that graphene transistors have a nanoscale cooling effect that reduces their temperature.

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