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Science News Archive September 2015 - Page 18


Page 18 of 35

Can DNA evidence fill gaps in our history books?

Researchers used DNA to reconstruct past events that brought European populations together, shedding light on the lives of 'regular people.' The study found evidence of multiple migrations, including from Central Asia to Europe and from West Africa to the Mediterranean.

SourceCell Press·JournalCurrent Biology·DateSep 17, 2015

Molecular imaging study reveals improved detection of early recurrent prostate cancer

A new imaging agent, Ga-68 PSMA, significantly improved detection of early recurrent prostate cancer in a study published in The Journal of Nuclear Medicine. The agent was found to detect sites of possible recurrence in 50% of patients with low PSA levels, compared to only 12.5% for another widely used agent.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateSep 17, 2015

Uniquely human brain region enables punishment decisions

A recent study revealed that the dorsolateral prefrontal cortex (DLPFC) integrates information about a suspect's blameworthiness and harm to others, enabling humans to decide on appropriate punishment levels. The DLPFC is specialized for integrating multiple streams of information to select responses.

SourceCell Press·JournalNeuron·DateSep 16, 2015

Can mindfulness help patients stay in treatment?

Researchers at Brown University are conducting a five-year study on mindfulness and patient treatment adherence, funded by a $4.7 million NIH grant. The study aims to determine whether mindfulness interventions can influence self-regulation related to medical regimen adherence, with the goal of improving health outcomes.

Pinpointing punishment

A new study has pinpointed the dorsolateral prefrontal cortex (DLPFC) as a critical brain region responsible for coordinating punishment decisions made by judges and juries. The DLPFC integrates information from other parts of the brain to determine punishment, with disruption leading to reduced punishments for morally responsible agents.

SourceHarvard University·JournalNeuron·DateSep 16, 2015

Immune system may be pathway between nature and good health

Research finds that spending time in nature enhances the functioning of the body's immune system, providing protections against a range of diseases including depression and cardiovascular disease. The immune system plays a crucial role in every one of these diseases, highlighting the importance of exposure to nature for overall health.

No such thing as ghosts?

A new method called Phantom Derivative (PhD) has been developed to determine complex structures with limited experimental data. PhD is a competitive approach in protein crystallography, producing results comparable to existing techniques like density-modification and Vive la Difference.

SourceInternational Union of Crystallography·JournalActa Crystallographica Section A·DateSep 16, 2015

Using ultrasound to clean medical instruments

A pioneering ultrasonic device called StarStream has been developed to improve the cleaning of medical instruments using cold water, eliminating biological contamination and bacterial biofilms. The device has shown significant effectiveness in removing complex contaminants such as brain tissue from surgical steel.

SourceUniversity of Southampton·JournalPhysical Chemistry Chemical Physics·DateSep 16, 2015

Citizen scientists contribute to dog research

A study by Duke University analyzed data from 500 citizen scientists worldwide, who played the same games as researchers use in labs. The results showed that dogs rely on memory over sense of smell to solve problems. The dataset also revealed unique cognitive skills among dogs, including communication and problem-solving abilities.

SourceDuke University·JournalPLOS ONE·DateSep 16, 2015

The Lancet Diabetes & Endocrinology: Study suggests that patients with type 2 diabetes should be prioritized for obesity surgery

New research suggests that obese patients with type 2 diabetes should be prioritized for obesity surgery, as they often experience remission of diabetes and reduced healthcare costs. The study, based on the Swedish Obese Subjects (SOS) study, found that total healthcare costs were lower in surgery patients who had prediabetes or diabetes.

SourceThe Lancet·JournalThe Lancet Diabetes & Endocrinology·DateSep 16, 2015