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Science News Archive 2009 - Page 64


Page 64 of 277

Nanometric butterfly wings created

A team of researchers developed a technique to replicate biological structures on a nano scale, creating free-standing replicas of fragile, laminar, chitinous biotemplates. The resulting biomaterial could be used for optically active structures, such as optical diffusers for solar panels and devices with light-emitting properties.

SourceSpanish Foundation for Science and Technology·JournalBioinspiration & Biomimetics·DateOct 8, 2009

Penn State receives National Intelligence award

Penn State's College of Information Sciences and Technology has received a two-year, $1 million grant from the Office of the Director of National Intelligence to further its research in areas related to national security. The award aims to produce students who can become leaders in the U.S. intelligence community.

Liver cells grown from patients' skin cells

Researchers at Medical College of Wisconsin successfully produced patient-specific liver cells from skin cells, enabling potential treatment of metabolic liver diseases. The study builds on previous work by James Thomson and colleagues, showing that skin cells can be reprogrammed into embryonic stem cells.

SourceMedical College of Wisconsin·JournalHepatology·DateOct 8, 2009

Lessons learned from H1N1 virus pandemic

A comprehensive study on H1N1 virus impact in Australia and New Zealand reveals 20% ICU bed occupancy during peak epidemic. The study shares critical illness patterns, including unexpected effects on middle-aged individuals and pregnant patients.

SourceMonash University·JournalNew England Journal of Medicine·DateOct 8, 2009

Will giving coffee to babies keep them awake as adults?

A Canadian study found that giving caffeine to newborn rats causes detrimental effects on sleep and breathing patterns in adulthood. Adult rats showed reduced sleeping time, increased time to fall asleep, and fragmented non-REM sleep. Breathing problems were also more common in caffeine-treated rats.

SourceFaculty of 1000·JournalThe Journal of Physiology·DateOct 8, 2009

No scientific link between childhood vaccines and autism

A new article reviews published research and finds no convincing evidence supporting a relationship between vaccines and autism. The onset of autism occurs prior to age three, with various possible associations examined but no clear cause identified.

SourceWiley·JournalJournal for Specialists in Pediatric Nursing·DateOct 8, 2009

Scientists reveal new pattern in our daily clock

Researchers at the University of Manchester discovered two types of brain cells with distinct electrical properties that differ significantly between day and night. One type contains a key gene and can survive high levels of excitability, while the other cannot, contradicting accepted theory on how the daily clock works.

SourceUniversity of Manchester·JournalScience·DateOct 8, 2009

Scans show learning 'sculpts' the brain's connections

Researchers discovered that learning a new task alters the brain's spontaneous activity patterns, particularly in regions involved in attention and visual processing. This 'anti-correlation' between brain areas improves task performance and facilitates future skill retrieval.

SourceWashU Medicine·JournalProceedings of the National Academy of Sciences·DateOct 8, 2009