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Science News Archive September 2012 - Page 17


Page 17 of 27

Uncertain about health outcomes, male stroke survivors more likely to suffer depression than females

A new study published in Archives of Physical Medicine and Rehabilitation reveals that male stroke survivors are more prone to depression than females, primarily due to uncertainty about their illness outcomes. Health ambiguity is significantly associated with greater depression for both sexes, but the association is stronger for men.

SourceElsevier Health Sciences·JournalArchives of Physical Medicine and Rehabilitation·DateSep 12, 2012

New African monkey species identified

Researchers have discovered a new species of African monkey, the lesula, in the Democratic Republic of Congo. The species is threatened by local bush meat hunting and has a limited range of 6,500 square miles, making it vulnerable to extinction.

SourcePLOS·JournalPLOS ONE·DateSep 12, 2012

BYU study: Exercise may affect food motivation

A new study from Brigham Young University found that moderate-to-vigorous exercise in the morning can decrease a person's motivation for food. The research measured neural activity in women while they viewed food images before and after exercise, revealing a lower attentional response to food pictures after the workout.

SourceBrigham Young University·JournalMedicine & Science in Sports & Exercise·DateSep 12, 2012

Gladstone-led study underscores Truvada's potency in preventing the transmission of HIV

A recent study published in Science Translational Medicine has reaffirmed the effectiveness of Truvada in preventing HIV transmission, finding that patients can reap benefits even with lower adherence to daily regimens. The research suggests that alternative dosing strategies could be explored to optimize efficacy and convenience.

SourceGladstone Institutes·JournalScience Translational Medicine·DateSep 12, 2012

Scientists discover how the brain ages

Researchers at Newcastle University have found that brain cells follow the same molecular pathway as senescent fibroblasts, leading to cell damage and age-related diseases. This discovery opens new possibilities for understanding and treating conditions like dementia and motor neuron disease.

SourceNewcastle University·JournalAging Cell·DateSep 12, 2012

Evolving righteousness in a corrupt world

A modeling study published in PLOS ONE found that introducing small payments alongside punishment can create stable, righteous societies in the face of corruption. Once corruption is eradicated, it can be held at bay indefinitely even if power inequalities return.

SourcePLOS·JournalPLOS ONE·DateSep 12, 2012

Study examines thoughts and feelings that foster collaboration across cultures

A study by Michael Morris and colleagues reveals that individuals with high cultural metacognition tend to develop more affectively trusting relationships with people from other cultures, enabling the free flow of ideas. This leads to greater success in collaborative creativity across cultural lines. The research highlights the importa...

SourceColumbia Business School·JournalOrganizational Behavior and Human Decision Processes·DateSep 12, 2012

Antidepressants, sleeping pills and anxiety drugs may increase driving risk

A recent study published in the British Journal of Clinical Pharmacology suggests that psychotropic drugs such as antidepressants, benzodiazepines, and Z-drugs may increase the risk of motor vehicle accidents. The research found a significant association between higher doses of these medications and a greater risk of accident involvement.

SourceWiley·JournalBritish Journal of Clinical Pharmacology·DateSep 12, 2012

Mercury in water, fish detected with nanotechnology

Researchers developed a nanoparticle system that can detect even the smallest levels of heavy metals in water and fish, offering an inexpensive alternative to existing cumbersome techniques. The device is capable of measuring low concentrations of mercury, a toxic metal that can accumulate in predatory fish and harm human health.

SourceNorthwestern University·JournalNature Materials·DateSep 12, 2012

Going with the flow

An international team of researchers has developed a way to manipulate cells using fluid flow patterns generated by mechanical oscillations in a microfluidic channel. This technique combines the precision of direct physical contact with the speed of non-contact methods, allowing for high-level control over individual cells.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateSep 12, 2012

Predicting if scientists will be stars

A new Northwestern University study developed a formula that accurately predicts a young scientist's success in the life sciences, considering factors like publications, h-index, and high-impact journal articles. The formula is more than twice as accurate as existing methods for predicting future success.

SourceNorthwestern University·JournalNature·DateSep 12, 2012

Less wear, longer life for memory storage device

A research team at Intel Corp. has developed a long-lasting ultrahigh-density probe storage device by coating probe tips with a thin metal film, reducing wear and increasing the device's lifetime to over 8 kilometers. The device features an array of 5,000 ultrasharp probes that write tiny bits of memory as small as a few nanometers.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateSep 12, 2012

Russia fails to grasp democratic ideals

A Michigan State University sociologist argues that Russia's pursuit of liberalization has not led to democracy, but rather created a culture of greed, corruption, and disloyalty. The country's elite prioritize personal wealth over national interests, undermining its global influence.

SourceMichigan State University·JournalCommunist and Post-Communist Studies·DateSep 12, 2012

Single-port kidney removal through the belly button boosts living-donor satisfaction

A University of Maryland study found that single-port kidney removal through the belly button resulted in higher satisfaction rates among living donors, with fewer limitations after surgery. The new technique also showed slightly less pain and no increased risks or complications compared to traditional multi-port laparoscopic removal.

SourceUniversity of Maryland Medical Center·JournalAnnals of Surgery·DateSep 12, 2012

Smoking abstinence tough for teens, too

A new study reveals that abstaining from smoking significantly affects teenagers' mood, cravings, and withdrawal symptoms in a manner similar to adults. Contrary to expectations, teenagers who had smoked for only two years showed strong negative effects after just one day of abstinence.

SourceBrown University·JournalNicotine & Tobacco Research·DateSep 12, 2012

Improved nanoparticles deliver drugs into brain

Researchers at Johns Hopkins Medicine have designed nanoparticles that can safely and predictably infiltrate deep into the brain, delivering chemotherapy drugs to treat brain cancer. The breakthrough allows for controlled release of medication over time, reducing dosage challenges and improving treatment outcomes.

SourceJohns Hopkins Medicine·JournalScience Translational Medicine·DateSep 11, 2012