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Past regional cold and warm periods linked to natural climate drivers Knockouts in human cells point to pathogenic targets
First-ever blueprint of a minimal cell is more complex than expected Building real security with virtual worlds
Ecological speciation by sexual selection on good genes Research sheds light on workings of anti-cancer drug
Is the 'Giant Impact' hypothesis in reality the 'Origin of the Moon' ? Plasma produces KO cocktail for MRSA

Medical students regularly stuck by needles, often fail to report injuries

Medical students are commonly stuck by needles -- putting them at risk of contracting potentially dangerous blood-borne diseases -- and many of them fail to report the injuries to hospital authorities, according to a Johns Hopkins study published in the December issue of the journal Academic Medicine.

Cosmic 'dig' reveals vestiges of the Milky Way's building blocks

"The history of the Milky Way is encoded in its oldest fragments, globular clusters and other systems of stars that have witnessed the entire evolution of our galaxy," says Francesco Ferraro, lead author of a paper appearing in this week's issue of the journal Nature. "Our new study opens a new window on yet another piece of our galactic past."

Study sheds light on brain's fear processing center

Breathing carbon dioxide can trigger panic attacks, but the biological reason for this effect has not been understood. A new study by University of Iowa researchers shows that carbon dioxide increases brain acidity, which in turn activates a brain protein that plays an important role in fear and anxiety behavior.

Oceanic crust formation is dynamic after all

PROVIDENCE, R.I. [Brown University] -- Imagine the Earth's crust as the planet's skin: Some areas are old and wrinkled while others have a fresher, more youthful sheen, as if they had been regularly lathered with lotion.

NIH teams with Lancet to address public health impacts of climate change

Strategies to reduce greenhouse gases also benefit human health, according to studies published today in the medical journal The Lancet. The Lancet series highlights case studies on four climate change topics -- household energy, transportation, electricity generation, and agricultural food production.

Dentists can help to identify patients at risk of a heart attack

Dentists can help to identify patients who are in danger of dying of a heart attack or stroke, reveals a new study from the Sahlgrenska Academy. Thanks to the study, six men who thought they were completely healthy were able to start preventive treatment in time.

Small faults in southeast Spain reduce earthquake risk of larger ones

A team of Spanish scientists, studying recent, active deformations in the Baetic mountain range, have shown that the activity of smaller tectonic structures close to larger faults in the south east of the Iberian Peninsula partially offsets the risk of earthquakes.

Magic box for mission impossible

On September 11, firefighters, police officers and ambulance workers faced a terrifying rescue effort in the World Trade Center complex. They battled to save people from the collapsing Twin Towers, searched for survivors, tackled fires and evacuated as many people as they could in an area which contained an estimated 17,000 people.

Houses of the rising sun

New research at the University of Leicester has identified scores of Sicilian temples built to face the rising Sun, shedding light on the practices of the Ancient Greeks.

Dr Alun Salt, an astronomy technician from the Centre for Interdisciplinary Science at the University of Leicester, found that out of all the temples he surveyed in Sicily, all but three faced the rising sun.

New device implanted by surgeons help paralyzed patients breathe easier

DALLAS -- Nov. 25, 2009 -- Physicians at UT Southwestern Medical Center soon will begin implanting a new device designed to improve breathing in patients with upper spinal-cord injuries or other diseases that keep them from breathing independently.



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