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Science News Archive December 2013 - Page 27


Page 27 of 27

Kids whose bond with mother was disrupted early in life show changes in brain

Research finds that children whose bond with mother was disrupted early in life show similar responses to adoptive mother and strangers in the amygdala, indicating potential long-term effects on social interaction. Longitudinal study of 67 youths aged 4-17 reveals reduced amygdala differentiation and increased indiscriminate friendliness.

SourceUniversity of California - Los Angeles·JournalBiological Psychiatry·DateDec 2, 2013

Dual protein knockout could lead to new male contraceptive

Researchers have found that blocking two proteins on smooth muscle cells can cause complete male infertility without affecting long-term sexual behavior. A potential oral male contraceptive drug could be developed within ten years, offering a safe and reversible alternative to current methods.

SourceMonash University·JournalProceedings of the National Academy of Sciences·DateDec 2, 2013

Study shows reforestation in Lower Mississippi Valley reduces sediment

A modeling study by US Forest Service researchers shows that reforesting the Lower Mississippi Alluvial Valley can significantly reduce runoff from agricultural lands and sediment entering rivers and streams. Converting agricultural lands to forests in or near battures can greatly lessen water outflow and reduce sediment load, with a t...

SourceUSDA Forest Service ‑ Southern Research Station·JournalEcological Engineering·DateDec 2, 2013

The mystery of neutron stars heats up

Theoretical calculations reveal previously unknown layers where nuclear reactions within the crust cause rapid neutrino cooling, altering our understanding of neutron star hot surfaces. Researchers now face new questions about the star's thermal dynamics and discovery potential of the Facility for Rare Isotope Beams.

SourceMichigan State University·JournalNature·DateDec 1, 2013