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Science News Archive April 2013 - Page 6


Page 6 of 32

Europe needs genetically engineered crops, scientists say

The European Union's current policies on genetically engineered crops are undermining its competitiveness and humanitarian activities in the developing world. The authors recommend adopting rational, science-based principles to prevent economic decline and lower standards of living across the continent.

SourceCell Press·JournalTrends in Plant Science·DateApr 25, 2013

Whales able to learn from others

A study found that humpback whales can learn new feeding techniques by observing others, with a new technique called lobtail feeding spreading to 40% of the population. This demonstrates the importance of cultural transmission in shaping whale behavior and cognition.

SourceUniversity of St. Andrews·JournalScience·DateApr 25, 2013

The microbes you inhale on the New York City subway

A study published in Applied and Environmental Microbiology found that the microbial population in NYC subway air is nearly identical to ambient air on city streets. The researchers used new methodologies, including fast collection of aerosols and rapid sequencing technology, to efficiently monitor the subway's microbial population.

SourceAmerican Society for Microbiology·JournalApplied and Environmental Microbiology·DateApr 24, 2013

Clenching right fist may give better grip on memory

A study published in PLOS ONE found that clenching the right fist before memorizing information strengthens the memory, while clenching the left fist before recalling improves verbal recall. Researchers suggest this effect may be due to brain regions associated with memory formation being activated by hand-clenching.

SourcePLOS·JournalPLOS ONE·DateApr 24, 2013

Researchers use nasal lining to breach blood/brain barrier

A team of researchers has successfully developed a method to breach the blood-brain barrier using the nasal lining, allowing for higher molecular weight drug delivery to the central nervous system. This breakthrough opens up new treatment options for neurodegenerative and CNS diseases affecting millions of people worldwide.

SourceMass Eye and Ear·JournalPLOS ONE·DateApr 24, 2013

No rebirth for insulin secreting pancreatic beta cells

Researchers used fluorescent cell labeling to determine when precursor cells develop into pancreatic beta cells. They found no evidence of neogenesis in adult mice, contradicting previous assumptions about beta cell creation. This discovery has significant implications for understanding diseases like diabetes.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 24, 2013

Dietary medium chain triglycerides prevent nonalcoholic fatty liver disease

Scientists have discovered that dietary medium chain triglycerides (MCT) can prevent the development of nonalcoholic fatty liver disease (NAFLD) in patients with obesity and type II diabetes. MCT substitution for polyunsaturated fat reduces liver fat accumulation and progression of injury, suggesting a potential future therapy.

SourceSociety for Experimental Biology and Medicine·JournalExperimental Biology and Medicine·DateApr 24, 2013

New LED streetlight design curbs light pollution

A new LED streetlight design harnesses high-efficiency LEDs to provide uniform illumination while minimizing light pollution and glare. The design achieves an optical utilization factor of 51-81 percent, reducing light pollution by up to a fifth.

SourceOptica·JournalOptics Express·DateApr 24, 2013

Deep, permeable soils buffer impacts of crop fertilizer on Amazon streams, MBL study finds

A new study in the Amazon finds that deep, permeable soils can act as a natural buffer against the negative impacts of crop fertilizer on nearby streams. The research suggests that these soils can absorb excess nutrients and reduce pollution, but warns that changes in land use may lead to increased nutrient runoff in the future.

SourceMarine Biological Laboratory·JournalPhilosophical Transactions of the Royal Society of London (B )·DateApr 24, 2013

Study shows drinking one 12oz sugar-sweetened soft drink a day can increase the risk of type 2 diabetes by 22 percent

A new study published in Diabetologia suggests that consuming one 12oz serving of sugar-sweetened soft drinks daily can increase the risk of developing type 2 diabetes by 22% in European populations. The research found a statistically significant association between artificially sweetened soft drink consumption and an increased risk of...

SourceDiabetologia·JournalDiabetologia·DateApr 24, 2013

JCI early table of contents for April 24, 2013

Researchers at Cedars-Sinai Medical Center discovered that the renin angiotensin system plays a fundamental role in hypertension. They found that mice without ACE in their kidneys were resistant to high blood pressure, indicating that targeting angiotensin production may be an effective approach to treat hypertension. In contrast, stud...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 24, 2013