The installed cost of solar photovoltaic (PV) power systems in the United States fell substantially in 2010 and into the first half of 2011, according to the latest edition of an annual PV cost tracking report released by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).

Researchers have identified promising new therapies for ependymoma, a rare tumor with few treatment options. St. Jude Children's Research Hospital investigators led the effort, which used a new, faster drug development system that combines the latest drug screening technology with the first accurate animal model of the tumor.

When Arctic ground squirrels are getting ready to hibernate they don't just get fat - they pack on muscle at a rate that would make a bodybuilder jealous.

Researchers have found that a protein linked to cell division and migration and tied to increased cell proliferation in ovarian tumors is also present at high levels in breast cancer specimens and cell lines. The protein, dubbed "UNC-45A," was also determined to be more active in breast cancer cells than in normal breast cells.

Their critics weren't convinced the first time, but Rice University researchers didn't give up on the "ice that burns."

To highlight Pain Awareness Month in September, The Gerontological Society of America (GSA) - the nation's largest interdisciplinary organization devoted to the field of aging - is announcing two forthcoming publications focused on pain relief and medication for seniors.

Pharmaceutical poisoning remains a common childhood injury, despite years of concerted prevention efforts, such as improved safe guards on packaging.

Although cold and gaseous rather than a desert world, the newfound planet Kepler-16b is still the closest astronomers have come to discovering Luke Skywalker's home world of Tatooine.

Equations that estimate a patient's kidney function work as well as direct, invasive measurements, according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology (JASN).

The genome of even a single organism is packed with information. A new paper, building on recent advances in sequencing capability, now reports the complete genomes of 17 different strains of mice, creating an unparalleled genetic resource that will aid studies ranging from human disease to evolution.

Raised yellow patches of skin (xanthelasmata) around the upper or lower eyelids are markers of an individual's increased risk of having a heart attack or suffering from heart disease.

The blanket of sea ice that floats on the Arctic Ocean appears to have reached its lowest extent for 2011, the second lowest recorded since satellites began measuring it in 1979, according to the University of Colorado Boulder's National Snow and Ice Data Center.

At least one of the "Big Three" credit ratings agencies exaggerated credit scores of private debt compared to public bonds during the last 30 years, according to a new study by researchers from Rice University, American University and Indiana University.

A study published in the October issue of the Journal of Labor Economics suggests an unexpected consequence of the housing bust: lower college attendance.

Scientists at the University of California, San Diego School of Medicine have uncovered a previously unknown fail-safe (compensatory) pathway that potentially protects the brain and other organs from genetic and environmental threats.

A new model of obsessive-compulsive disorder (OCD) that mirrors both symptoms of the disease and the timing of its treatment in humans has been created by University of Chicago researchers, according to a new study.

The number of young children admitted to hospitals or seen in emergency departments because they unintentionally took a potentially toxic dose of medication has risen dramatically in recent years, according to a new Cincinnati Children's Hospital Medical Center study.

The phrase "no guts, no glory" doesn't just apply to athletes who are striving to excel.

Children who think their parents are poor monitors or nag a lot tend to play videogames more than other kids, according to a study by Michigan State University researchers.

For the first time, new research shows that patterns of alcohol consumption - a drink or two every night, or several cocktails on Friday and Saturday nights only - may be more important in determining alcohol's influence on heart health than the total amount consumed.