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Penn State


Respect for human rights is improving

A new measurement model reveals that human rights are actually improving, contrary to common claims. The model takes into account changes in data collection and categorization, showing more countries with better human rights records.

SourcePenn State·JournalAmerican Political Science Review·DateMay 12, 2014

Research indicates coyote predation on deer in East manageable

Research indicates that coyote predation on fawns in the East may not be significant enough to cause deer population decline, especially with reduced doe harvests. In contrast, extremely low doe survival rates combined with high fawn mortality support stabilization of Eastern deer populations.

SourcePenn State·JournalJournal of Wildlife Management·DateMay 9, 2014

Mobile health apps lack behavior-change techniques

Researchers found that top-rated health and fitness apps typically use fewer than four behavior-change techniques, with most focusing on instruction, feedback, and goal-setting. The study highlights the need for developers to incorporate more effective techniques in their apps.

SourcePenn State·JournalAmerican Journal of Preventive Medicine·DateMay 6, 2014

Genetic approach helps design broadband metamaterial

Researchers at Penn State have developed a new metamaterial with high absorption over broad bandwidth, providing better protection against electromagnetic radiation. The material is designed using genetic algorithms and can be easily manufactured due to its simple layer structure.

SourcePenn State·JournalACS Nano·DateMay 5, 2014

Robots may need to include parental controls

Penn State researchers found that older adults fear companion robots will negatively affect young people, leading to design challenges for developers. To address this concern, robot designers may need to include parental controls to monitor children's use of robots and prevent dependency.

Mysteries of a nearby planetary system's dynamics now are solved

A team of astronomers has developed a viable model for the planetary system orbiting the star 55 Cancri, solving long-standing mysteries about the masses and orbits of its two giant planets. The study reveals that their particular masses and orbits are preventing the system from self-destructing anytime soon.

SourcePenn State·JournalMonthly Notices of the Royal Astronomical Society·DateApr 22, 2014

Under some LED bulbs whites aren't 'whiter than white'

Researchers found that different LED light sources render white differently, affecting product appearance. Participants struggled to distinguish between cards under blue-pumped LEDs, highlighting the need for spectrum engineering to accurately render whiteness.

SourcePenn State·JournalLEUKOS The Journal of the Illuminating Engineering Society of North America·DateApr 18, 2014

Drought and fire in the Amazon lead to sharp increases in forest tree mortality

A recent study found that severe droughts and repeated fires in the Amazon lead to high tree mortality rates, with 60% of trees dying in a single experiment. The researchers warn that climate change will exacerbate this issue, making it essential to implement policies and programs to control forest fires and prevent deforestation.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateApr 17, 2014

Sunlight generates hydrogen in new porous silicon

Researchers at Penn State have developed a method to manufacture porous silicon using solar energy, which can generate hydrogen from water when exposed to sunlight. The material's high surface area and nanoscale size enable it to act as an effective catalyst, aiding in the production of hydrogen gas.

SourcePenn State·JournalNature Communications·DateApr 10, 2014

Slowdown of global warming fleeting

Researchers at Penn State have redefined the Atlantic Multidecadal Oscillation (AMO), finding that its true signal was likely in a cooling phase in recent decades. This shift may have offset some of the anthropogenic warming, resulting in a temporary slowdown in global warming.

SourcePenn State·JournalGeophysical Research Letters·DateApr 7, 2014

Experience helps restaurant managers stick with local foods

A study found that restaurant chefs and food purchasing managers prefer buying local foods with quick response times, accurate labeling, and training staff on local food handling. This was revealed in a Penn State research project investigating management's attitudes toward purchasing locally grown foods.

SourcePenn State·JournalInternational Journal of Hospitality Management·DateApr 7, 2014

Tiny power generator runs on spit

Researchers have developed a saliva-powered, micro-sized microbial fuel cell that produces nearly 1 microwatt of power. The device uses graphene and bacteria from the natural environment to create energy, paving the way for portable biomedical devices with built-in power sources.

SourcePenn State·JournalNPG Asia Materials·DateApr 3, 2014

Cereal flake size influences calorie intake

A study by Penn State researchers found that when cereal flakes are reduced in size, participants pour a smaller volume but still consume more calories. The researchers tested the influence of food volume on calorie intake and found that subjects underestimated their calorie consumption despite consuming larger volumes.

SourcePenn State·JournalJournal of the Academy of Nutrition and Dietetics·DateMar 26, 2014

Model predicts blood glucose levels 30 minutes later

A mathematical model developed by Penn State researchers can accurately predict blood glucose levels of individuals with type 1 diabetes up to 30 minutes in advance. This allows for timely action to be taken and reduces the risk of hypoglycemic events, which can be life-threatening.

SourcePenn State·JournalJournal of Diabetes Science and Technology·DateMar 25, 2014

School hearing tests do not detect noise exposure hearing loss

Researchers at Penn State College of Medicine found that school hearing tests cannot effectively detect noise exposure-induced high-frequency hearing loss in adolescents. The tests primarily focus on low-frequency hearing loss and may not accurately identify hearing issues caused by prolonged exposure to loud noises.

SourcePenn State·JournalJournal of Medical Screening·DateMar 20, 2014

3-D model links facial features and DNA

Researchers at Penn State have developed a new method to link genetic markers with facial features, allowing for the extraction of individual gene effects on facial shape. This breakthrough could lead to improved forensic analysis and better understanding of human genetics.

SourcePenn State·JournalPLOS Genetics·DateMar 20, 2014

Research reveals true value of cover crops to farmers, environment

A study published in Agricultural Systems found that planting cover crops increases eight of eleven ecosystem services, including carbon and nitrogen retention, erosion prevention, and weed suppression. The research highlights the importance of considering temporal dynamics when assessing management system effects on ecosystem services.

SourcePenn State·JournalAgricultural Systems·DateMar 19, 2014

3-D imaging sheds light on Apert syndrome development

Apert syndrome is caused by FGFR2 mutations, leading to early bone fusion, mid-facial deformation, and cognitive impairment. Researchers found that 3D imaging can estimate growth patterns and anticipate surgical outcomes, potentially improving patient-centered care.

SourcePenn State·JournalBMC Developmental Biology·DateFeb 28, 2014

Attitude during pregnancy affects weight gain

Overweight pregnant women who believe they are 'eating for two' tend to experience excessive weight gain, while those with a goal-oriented approach and healthy habits gain appropriate weight. Monitoring weight gain during pregnancy can help prevent future complications and obesity.

SourcePenn State·JournalObesity Research & Clinical Practice·DateFeb 26, 2014

Water is detected in a planet outside our solar system

A team of scientists at Penn State University has detected water vapor in the atmosphere of a hot-Jupiter exoplanet, tau Boötis b. This discovery could help researchers understand how many planets like Earth exist throughout the universe and provides new insights into the formation and evolution of exotic hot-Jupiter planets.

SourcePenn State·JournalThe Astrophysical Journal Letters·DateFeb 24, 2014

Multilevel approach to coping with stigmas identified

Researchers found that a two-way approach can be more effective in reducing health disparities due to social stigma. Interventions at the individual level, such as educational approaches, can be combined with structural changes, like legislative reforms, to achieve better outcomes.

SourcePenn State·JournalSocial Science & Medicine·DateFeb 20, 2014