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Science News Archive October 2015 - Page 26


Page 26 of 38

Global marine analysis suggests food chain collapse

A recent global analysis predicts a decline in marine species diversity and abundance as ocean acidification and warming are expected to have devastating effects on fisheries and ecosystems worldwide. Microorganisms are the only group likely to thrive, while carnivorous fish face a collapse from top of food chain.

SourceUniversity of Adelaide·JournalProceedings of the National Academy of Sciences·DateOct 12, 2015

Health care, research failing to adapt to US's growing multiracial population

New research suggests that multiracial individuals may be healthier than minority peers who consistently identify as monoracial. Health care systems continue to use outdated approaches to racial categorization, masking health conditions and obscuring disparities in healthcare access and utilization among multiracial populations.

Computerized cognitive training improves childhood cancer survivors' attention and memory

Childhood cancer survivors showed significant improvements in working memory, attention, and processing speed after completing computer-based cognitive training. The training program, using Cogmed, improved performance comparable to stimulant medications and showed changes in brain activity suggesting neuroplasticity.

SourceSt. Jude Children's Research Hospital·JournalJournal of Clinical Oncology·DateOct 12, 2015

New study reveals key differences in brain activity in people with anorexia nervosa

A recent study published in Nature Neuroscience has found that individuals with anorexia nervosa exhibit distinct brain activity patterns when making food choices, including increased activation in the dorsal striatum. These findings have significant implications for developing new treatments and understanding disease mechanisms.

SourceThe Zuckerman Institute at Columbia University·JournalNature Neuroscience·DateOct 12, 2015

Pain is in the brain

Researchers have identified a key mechanism linking chronic pain to abnormal activity in the anterior cingular cortex, a region of the brain involved in cognitive functions. The study provides insights into the role of HCN channels in controlling pain signals, suggesting new therapeutic strategies for relieving chronic pain.

Greenland's ice sheet plumbing system revealed

A team of experts has studied the water flow paths from a subglacial lake in Greenland, showing that it drained via a subglacial tunnel and was filled by surface meltwater. The study predicts increased drainage frequency as the Arctic warms, affecting ice sheet flow speeds and sea level change.

SourceUniversity of Exeter·JournalNature Communications·DateOct 9, 2015

Floppy but fast

Flexible, spaghetti-like proteins can bind to their receptor within billionths of a second, retaining high specificity. This discovery explains the transport paradox in cellular communication, enabling efficient proof-reading while maintaining speed.

Sea turtles face plastic pollution peril

All seven species of marine turtles can ingest or become entangled in discarded plastic debris, posing serious threats to their health and survival. The study highlights the urgent need for further research to understand the scale of the problem and develop effective mitigation policies.

SourceUniversity of Exeter·JournalICES Journal of Marine Science·DateOct 9, 2015