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Science News Archive August 2011 - Page 3


Page 3 of 27

New chemical reagent turns mouse brain transparent

Researchers at RIKEN have developed a new aqueous reagent, Scale, which renders biological tissue transparent, allowing for vivid 3D images of neurons and blood vessels deep inside the mouse brain. The reagent's unique properties enable visualization of fluorescently-labeled samples at unprecedented depths and levels of spatial detail.

SourceRIKEN·JournalNature Neuroscience·DateAug 30, 2011

Health systems research needs overhaul

The article emphasizes the need for a structured approach to health policy and systems research (HPSR), citing its current challenges. To address this, the authors propose establishing dedicated homes for HPSR in universities and independent research institutes.

SourcePLOS·JournalPLOS Medicine·DateAug 30, 2011

Happiness: All in who you know, goals

A study by Bernardo J. Carducci found that happy college students who are less outgoing focus on family and friends connections, positive thinking, and goal-oriented activities, leading to increased happiness. Additionally, goal-oriented students tend to be happier due to engaging in purposeful leisure and spiritual reflection.

Why does Japan have the highest life expectancy?

Rapid declines in infectious disease and stroke mortality enabled by salt reduction campaigns, improved healthcare technologies, and universal health insurance coverage have contributed to Japan's exceptional longevity. The country faces new challenges due to an aging population and rising healthcare costs.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 30, 2011

Testing the water for bioenergy crops

A recent study highlights the importance of considering water usage in bioenergy crop production, particularly with large grasses like miscanthus or switchgrass. The research found that these crops can increase net water use due to higher transpiration rates and land conversion's impact on hydrology.

SourceU.S. National Science Foundation·JournalProceedings of the National Academy of Sciences·DateAug 30, 2011

New insight into impulse control

A study published in the Journal of Neuroscience found that differences in when movement neurons begin accumulating information from sensory neurons explain adjustments in response times. This discovery forces a major modification to existing cognitive models of impulse control, shedding new light on how the brain controls basic impulses.

UCLA memory fitness program improves memory abilities of oldest adults

A new UCLA study found that a six-week memory fitness program improved verbal memory and reduced age-related memory decline in seniors over 80. The program included education on lifestyle factors impacting memory ability and overall brain health, resulting in enhanced self-perceived memory and cognitive function.

SourceUniversity of California - Los Angeles Health Sciences·JournalAmerican Journal of Geriatric Psychiatry·DateAug 29, 2011