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Science News Archive September 2014 - Page 27


Page 27 of 34

Teens living with 2 college-educated parents less likely to use alcohol and marijuana

A UT Arlington study found that teens living with two college-educated parents are significantly less likely to drink alcohol or smoke marijuana. The presence of both parents is a strong protective factor for African-American adolescents, with white teenagers being 69% more likely to engage in substance abuse than black peers.

SourceUniversity of Texas at Arlington·JournalSocial Work in Public Health·DateSep 8, 2014

A single evolutionary road may lead to Rome

A new paper published in Nature Communications suggests that simple traits like butterfly wing patterns may have a shared genetic source. Researchers identified a single gene, WntA, responsible for the evolution of similar color patterns in two distantly related butterfly species.

SourceMichigan State University·JournalNature Communications·DateSep 8, 2014

A bird-pollinated flower with a rather ingenious twist

Researchers discovered that a unique twist in the nectar spur of a bird-pollinated flower allows for more efficient pollen placement on sunbirds' heads and bills. This adaptation increases the likelihood of successful pollination and reduces competition among plant species.

SourceCell Press·JournalCurrent Biology·DateSep 8, 2014

Brain injuries no match for sPIF treatment

Researchers at Yale School of Medicine have found a synthetic molecule called PreImplantation Factor (sPIF) that protects against neuronal death and brain injury. The study suggests that sPIF mitigates brain damage through a novel pathway, potentially treating perinatal brain injuries and neurodegenerative disorders.

SourceYale University·JournalProceedings of the National Academy of Sciences·DateSep 8, 2014

Broken signals lead to neurodegeneration

A study published in PNAS reveals that a protein cross-linking enzyme interacts with a cell receptor to lock it in a closed state, reducing neuron signaling in neurodegenerative diseases like Huntington's and Alzheimer's. The mechanism may provide insight into the development of new drug therapies for these conditions.

SourceRIKEN·JournalProceedings of the National Academy of Sciences·DateSep 8, 2014

New research shows that there could be increased numbers of psychopaths in senior managerial positions and high levels of business

Researchers found that individuals with psychopathic tendencies and high intelligence can mask their symptoms by manipulating tests designed to reveal their personalities. This raises concerns about the potential presence of ruthless risk-takers in key business posts.

SourceUniversity of Huddersfield·JournalJournal of Forensic Psychiatry and Psychology·DateSep 8, 2014

Hog workers carry drug-resistant bacteria even after they leave the farm

A new study reveals that nearly half of hog workers in North Carolina carry livestock-associated Staphylococcus aureus, with 46% persistently carrying the bacteria up to four days after exposure. The drug-resistant strains have implications for public health, potentially spreading to family members and communities.

SourceJohns Hopkins Bloomberg School of Public Health·JournalOccupational and Environmental Medicine·DateSep 8, 2014

Social networking can help people lose weight

Research by Imperial College London combining 12 previous studies shows social networking programmes have achieved modest but significant results in helping participants lose weight. The programme provides a community of support from clinicians and peers, empowering patients to be more proactive in their treatment.

SourceImperial College London·JournalHealth Affairs·DateSep 8, 2014