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Penn State


Hydration may affect cognitive function in some older adults

A Penn State study found that hydration levels among women are associated with lower scores on tests measuring motor speed, sustained attention, and working memory. The researchers suggest that being 'in the sweet spot' of hydration is best for cognitive function, particularly for tasks requiring sustained attention.

SourcePenn State·JournalEuropean Journal of Nutrition·DateDec 12, 2019

Respiration key to increase oxygen in the brain

Researchers discovered that exercise increases brain oxygenation by packing more oxygen into the bloodstream, contradicting the long-held assumption that blood is always completely saturated with oxygen. This breakthrough sheds new light on the dynamic relationship between respiration and cerebral oxygenation.

SourcePenn State·JournalNature Communications·DateDec 4, 2019

Women wearing hijabs in news stories may be judged negatively

A study by Penn State researchers found that women wearing hijabs in news stories can elicit harsher social judgment, with conservatives showing lower empathy and perceived innocence. The study suggests potential obstacles for women who wear hijabs in the real world, highlighting the need for more nuanced portrayals in media.

SourcePenn State·JournalMass Communication & Society·DateDec 3, 2019

Bushmeat may breed deadly bacteria

Researchers analyzed bushmeat samples from Tanzania's Serengeti National Park and found 27 different groups of bacteria, including those causing anthrax, brucellosis, and Q fever. The team identified a high prevalence of Clostridial species, which cause diseases like botulism and tetanus.

SourcePenn State·JournalScientific Reports·DateDec 2, 2019

All the feels

Researchers found that people experiencing higher felt love had significantly higher levels of psychological well-being and extraversion personality scores. They also developed a method to analyze noisy data using Bayesian latent stochastic differential equations model.

SourcePenn State·JournalPersonality and Individual Differences·DateNov 25, 2019

Using artificial intelligence to analyze placentas

A team of researchers has developed an AI-powered system that can analyze placentas using computerized photographic image analysis, potentially improving health outcomes for mothers and babies. The system uses artificial intelligence to detect features linked to abnormalities and potential health risks.

Tracking inheritance of human mitochondrial DNA

A study reveals how mitochondrial DNA is transmitted between generations, showing that a bottleneck occurs during oogenesis, reducing genetic diversity. This process can affect the inheritance of disease-related mutations, making it crucial for genetic counseling in women planning pregnancies.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateNov 18, 2019

Directional control of self-propelled protocells

A team of researchers at Penn State developed a way to control the direction of self-propelled protocells using enzymes that catalyze chemical reactions. The protocells can move towards or away from specific chemical signals, enabling targeted drug delivery and reducing the amount of medication required.

SourcePenn State·JournalNature Nanotechnology·DateNov 18, 2019

Combining satellites, radar provides path for better forecasts

Researchers at Penn State combined geostationary satellites and traditional weather radar to create a system that produces the best forecasts for severe thunderstorms. The study found that assimilating satellite and radar data simultaneously leads to the most accurate predictions, with warning times increased by up to 40 minutes.

SourcePenn State·JournalMonthly Weather Review·DateNov 11, 2019

Personalized gene networks enhance study of disease

Researchers at Penn State College of Medicine developed a new method to model gene interactions and predict changes over time. The idopNetwork can create personalized networks for individual patients, showing complex gene connections and predicting outcomes.

SourcePenn State·Journalnpj Systems Biology and Applications·DateNov 7, 2019

Persistent drizzle at sub-zero temps in Antarctica

Researchers recorded persistent drizzle at temperatures below minus 13 degrees Fahrenheit in Antarctica, with the presence of low concentrations of airborne particles contributing to its formation. The findings have implications for improving the accuracy of climate models in polar regions.

Health care provider deserts may leave patients in the cold

Researchers found that people with ACA health insurance are more likely to find themselves in 'artificial provider deserts,' areas with limited coverage, and must travel further to access care. The study highlights the need for consumers to carefully consider their insurance options to make informed decisions about their healthcare.

SourcePenn State·JournalHealth Affairs·DateNov 4, 2019

Malaria parasite lives on the edge

The malaria parasite expresses genes for proteins needed in later stages using two separate schemes of translational repression, which could be exploited to fight the disease. Researchers identified two programs that operate simultaneously and independently, allowing the parasite to quickly respond to changes in its environment.

SourcePenn State·JournalNature Communications·DateOct 31, 2019

Tiny swimming donuts deliver the goods

Researchers created microscopic, 3D-printed tori (donuts) coated with nickel and platinum to mimic biological behavior. These 'micro swimmers' can swim in water, respond to signals, and transport particles, potentially delivering targeted drugs or aiding in micromixing.

SourcePenn State·JournalNature Communications·DateOct 30, 2019

Political affiliation may help drive and shape a person's morals

A new study found that people's moral foundations are better predicted by their political attitudes than vice versa. The researchers tracked participants' moral values and political leanings over time, revealing that those with stable political beliefs were more likely to have consistent moral foundations.

SourcePenn State·JournalAmerican Journal of Political Science·DateOct 24, 2019

Biological material boosts solar cell performance

Researchers at Penn State have successfully increased the efficiency of perovskite solar cells by adding the protein bacteriorhodopsin, boosting it from 14.5% to 17%. This breakthrough could lead to more environmentally friendly and cost-effective bioperovskite solar cell technology.

SourcePenn State·JournalACS Applied Materials & Interfaces·DateOct 22, 2019