Low Levels Of Neurotransmitter Serotonin May Perpetuate Child Abuse Across Generations :
Infant abuse may be perpetuated between generations by changes in the brain induced by early experience, research shows. A research team found that when baby rhesus monkeys endured high rates of maternal rejection and mild abuse in their first month of life, their brains often produced less serotonin, a chemical that transmits impulses in the brain. Low levels of serotonin are associated with anxiety and depression and impulsive aggression in both humans and monkeys.
Scientists Discover Molecular Basis For Dark Adaptation In Mice:
In poor light the eyes of mice react like some digital cameras: they reduce their resolution while at the same time increasing their sensitivity. Specialists in the retina focus the information of several light sensor cells for this purpose. Scientists from the University of Bonn and their colleagues from Oldenburg, Bochum and Kobe (Japan), have now discovered how all this works.
How To Mend A Broken Heart: Zebrafish Hold Key To Regeneration:
When a portion of a zebrafish's heart is removed, the dynamic interplay between a mass of stem cells that forms in the wound and the protective cell layer that covers the wound spurs the regeneration of functional new heart tissue, Duke University Medical Center scientists have found.
A team of MIT engineers has identified two key physical processes that lend spider silk its unrivaled strength and durability, bringing closer to reality the long-sought goal of spinning artificial spider silk.
Modeling Alien Invasions: Plasticity May Hold The Key To Prevention:
The ability of an organism to respond adaptively to environmental variation -- phenotypic plasticity -- can have profound and unexpected effects on species interactions and the probability that a species will invade.
New Research House To Guide Future Home Development:
The University of Nottingham is helping to battle climate change on the home front -- with the construction of a new experimental house on campus that will cut "greenhouse gas" emissions by 60 per cent
Urban Sprawl Not Cause Of Human Sprawl: Study:
As health-spending on obesity-related illnesses continues to rise in the United States, many suggest that urban planning geared towards active and healthy living could be an important tool to curb obesity. But does urban sprawl really cause human sprawl? Not according to research conducted at the University of Toronto, the London School of Economics and Universitat Pompeu Fabra in Spain.
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