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Science News Archive November 2012 - Page 23


Page 23 of 23

UCSB scientists report 'new beginning' in split-brain research, using new analytical tools

Researchers at UCSB have made a significant discovery in the study of split-brain research, uncovering dynamic changes in brain coordination patterns between left and right hemispheres. The findings show that healthy test subjects respond less accurately when information is shown only to the right brain.

SourceUniversity of California - Santa Barbara·JournalProceedings of the National Academy of Sciences·DateNov 1, 2012

Solving a biological mystery

Harvard scientists have solved the long-standing mystery of how some insects form germ cells, discovering that a cricket's oskar gene is far older than previously thought. The team found that the gene emerged in their last common ancestor and likely originated in the nervous system before being co-opted for germ cell formation.

SourceHarvard University·JournalCurrent Biology·DateNov 1, 2012

JCI early table of contents for Nov. 1, 2012

A study published in the Journal of Clinical Investigation identifies a rare mutation in the DGAT1 gene as the cause of congenital diarrheal disorder. Additionally, research on natriuretic peptides reveals their role in enhancing human skeletal muscle metabolism and increasing fat oxidation.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2012

Gene required for nerve regeneration identified

A gene called spastin plays a critical role in axon regeneration, which was found to be shut down by a mutation in the gene. The researchers used fruit flies as a model organism and observed that severed axons regrew normally when the gene was present.

SourcePenn State·JournalCell Reports·DateNov 1, 2012

Living donors fare well following liver transplantation

Researchers found that living donor liver transplant recipients had better quality of life than the general Japanese population, except those with medical problems after donation. The study also discovered a significant correlation between decreased long-term HRQOL and age, persistence of symptoms, or additional diseases.

SourceWiley·JournalLiver Transplantation·DateNov 1, 2012

Rethinking reading

A recent study published in Developmental Psychology found that variation in words, rather than similarity, may help early readers learn the rules of phonics more effectively. The study showed that students exposed to varied practice outperformed those with similar word lists, particularly among struggling learners.

SourceUniversity of Iowa·JournalDevelopmental Psychology·DateNov 1, 2012

More evidence needed to support use of autism interventions

Researchers found moderate to insufficient evidence supporting various autism interventions, highlighting the need for well-designed studies. The expert panel recommends focusing on assessment and monitoring treatment outcomes, addressing needs of preverbal and nonverbal children, and identifying effective strategies for core deficits.

SourceRAND Corporation·JournalPEDIATRICS·DateNov 1, 2012

An elephant that speaks Korean

Researchers found that Koshik can mimic five Korean words: 'annyong' (hello), 'anja' (sit down), 'aniya' (no), 'nuo' (lie down), and 'choah' (good). The elephant's language skills may provide insights into the biology of complex vocal learning, crucial for human speech and music.

SourceCell Press·JournalCurrent Biology·DateNov 1, 2012