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Science News for October 6, 2013


What evolved first -- a dexterous hand or an agile foot?

Researchers used brain imaging and fossil evidence to confirm earlier studies on somatotopic maps in humans and monkeys. Early hominids evolved dexterous fingers when still quadrupeds, while bipedal locomotion led to a separate adaptation of the big toe for balance control.

SourceRIKEN·JournalPhilosophical Transactions of the Royal Society of London (B )·DateOct 6, 2013

Glutamatergic agents show promise for mood and anxiety disorders

Researchers suggest targeting the glutamatergic system as a viable target for antidepressant drug development, with potential to rapidly alleviate symptoms of depression. A phase II trial demonstrated a surprisingly rapid antidepressant effect in humans, and further studies indicate extended efficacy.

SourceEuropean College of Neuropsychopharmacology·DateOct 6, 2013

How binge drinking impairs bone healing

A study found that binge drinking slows bone healing by impairing the formation of hard bony tissue and recruiting stem cells to the injury site. Alcohol also increases oxidative stress, which can lead to weaker bones.

SourceLoyola Medicine·DateOct 6, 2013
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Giant channels discovered beneath Antarctic ice shelf

Researchers have discovered vast channels beneath an Antarctic ice shelf, stretching hundreds of kilometers. The channels' formation is linked to meltwater flowing under the grounded ice sheet, shedding light on how ice responds to environmental changes.

SourceUniversity of Exeter·JournalNature Geoscience·DateOct 6, 2013

International coalition of researchers finds 6 new Sjögren's syndrome genes

Researchers have identified six new disease-related genes for Sjögren's syndrome, an autoimmune disease that affects moisture-producing glands. The findings provide a first step towards understanding how genetic variants alter immune system functions and may lead to the development of therapeutics.

SourceOklahoma Medical Research Foundation·JournalNature Genetics·DateOct 6, 2013

Identical twins with significant weight differences shed light on the phenomenon of metabolically healthy obesity

A study of identical twins with significant weight differences found that in half of the pairs, the obese twin had a poorer blood fat profile and increased risk of diabetes. In contrast, the other half showed no difference in metabolic health between the two twins, shedding light on the 'metabolically healthy obesity' phenomenon.

SourceDiabetologia·JournalDiabetologia·DateOct 6, 2013
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Epigenetic markers shows promise in Alzheimer's disease

Researchers found that epigenetic changes in the brain are associated with Alzheimer's disease, offering potential for novel diagnostic and therapeutic strategies. Epigenetic markers such as DNA methylation and hydroxymethylation increased with age, correlating with AD pathology.

SourceEuropean College of Neuropsychopharmacology·DateOct 6, 2013

Bt sweet corn can reduce insecticide use

A new study suggests that genetically modified Bt sweet corn can reduce the need for traditional insecticides, resulting in increased marketability and profitability for farmers. The research found that Bt sweet corn outperformed non-Bt varieties in controlling pest infestations, even with conventional insecticide applications.

SourceEntomological Society of America·JournalJournal of Economic Entomology·DateOct 6, 2013

How the detergent of the atmosphere is regenerated

Researchers at Jülich's Institute of Energy and Climate Research have successfully recreated the natural conditions for isoprene degradation, demonstrating efficient hydroxyl radical regeneration. This process takes place faster than previously thought and produces fewer climate-damaging ozone molecules.

SourceForschungszentrum Juelich·JournalNature Geoscience·DateOct 6, 2013
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Stress a key factor in causing bee colonies to fail

Research found that pesticides can subtly impact individual bees, leading to colony failure. The study provides an important breakthrough in understanding the causes of declining bee populations and offers insights for policymakers.

SourceRoyal Holloway, University of London·JournalEcology Letters·DateOct 6, 2013