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Penn State


A new, nanoscale, 3D structure to control light

Researchers at Penn State developed a computational optimizer to design a 3D unit cell with cube-shaped cavities that enables asymmetric transmission of linearly polarized light across a wide frequency range. The optimized design was successfully fabricated and tested, demonstrating robust optical properties.

SourcePenn State·JournalAdvanced Functional Materials·DateFeb 2, 2022

Can wearable technology predict the negative consequences of drinking?

Researchers from Penn State's Department of Biobehavioral Health developed wearable sensors that can detect alcohol concentration in sweat, providing a more nuanced understanding of intoxication. The study shows that wearable technology can predict the negative consequences of drinking and help prevent alcohol-related harm.

SourcePenn State·JournalAlcoholism Clinical and Experimental Research·TypeExperimental study·DateJan 27, 2022

Flavonoids may reduce mortality risk for people with Parkinson’s Disease

A recent study found that people with Parkinson's Disease who consume more flavonoids have a lower mortality risk than those who don't. The researchers discovered that higher flavonoid intake is associated with improved survival rates in both men and women, particularly when it comes to anthocyanin-rich foods like berries and red wine.

SourcePenn State·JournalNeurology·TypeObservational study·DateJan 26, 2022

Connection to racial identity may boost body image in Black youth

A new Penn State study found that Black youth with high BMIs reported fewer weight concerns when they had a strong sense of racial identity. Fathers also played a role in shaping their daughters' body image, particularly when involved in teaching about Black culture. The findings suggest that services promoting youth racial identity an...

SourcePenn State·JournalJournal of Research on Adolescence·TypeObservational study·DateJan 25, 2022

How can body weight affect the mortality risk of excessive drinkers?

A recent study published in Drug and Alcohol Dependence found that people with underweight who drink excessively may be at an even higher risk of dying from heart disease, cancer, and other causes. The researchers analyzed data on mortality risk among drinkers and non-drinkers using the CDC categories to define

SourcePenn State·JournalDrug and Alcohol Dependence·TypeObservational study·DateJan 24, 2022

Cultural similarities may play key role in successful immigrations

Researchers studied evacuees from Finland during WWII and found that cultural similarities, such as language and social networks, were crucial for successful migrations. Being younger, male, educated, and linguistically similar to the host population also increased the likelihood of staying in a new home.

SourcePenn State·JournalProceedings of the Royal Society B Biological Sciences·TypeComputational simulation/modeling·DateJan 18, 2022

Newly discovered carbon may yield clues to ancient Mars

Researchers analyzing Martian sediment samples suggest three possible explanations for the carbon's origin, including cosmic dust, ultraviolet degradation of carbon dioxide, or biological activity. The findings provide insights into the ancient Mars' carbon cycle and its potential habitability.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJan 17, 2022

How do the effects of childhood abuse extend into middle age?

Researchers found that women who experienced childhood sexual abuse developed blunted cortisol profiles, associated with health problems like depression and anxiety. Epigenetic age acceleration also contributed to these effects. The study aims to understand resilience to trauma and develop interventions for those affected.

SourcePenn State·JournalPsychoneuroendocrinology·TypeObservational study·DateJan 13, 2022

Dairy farmers can adapt to climate change

A recent study suggests that dairy farmers in the Northeast can reduce environmental impacts and maximize revenues by implementing double cropping and subsurface injection of manure into the soil. These strategies reduced total nitrogen losses by 12-18% and total phosphorus losses by 16-19%.

SourcePenn State·JournalAgricultural Systems·DateJan 5, 2022

How understanding neighborhoods can help reduce tobacco use

Researchers found that community engagement is key to addressing risky health behaviors, particularly in lower-income neighborhoods. The study used a neighborhood mapping platform and in-person interviews to investigate how tobacco industry marketing affects neighborhoods of color.

SourcePenn State·JournalSocial Science & Medicine·DateJan 3, 2022

Racial discrimination may affect whether people respond to email

Researchers found that Americans were less likely to respond to an email survey from a person believed to be Black than from a person believed to be white. The study, which analyzed responses from over 250,000 people, suggests that racial bias can influence everyday communication behaviors.

SourcePenn State·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateDec 20, 2021

E-cigs with cigarette-like nicotine delivery may help smokers quit

A new study by Penn State College of Medicine and Virginia Commonwealth University researchers found that e-cigarettes with cigarette-like nicotine delivery may help some people stop smoking cigarettes. Participants who received a device with 36mg/mL nicotine showed significantly higher quit rates and increased days without smoking com...

SourcePenn State·JournalNicotine & Tobacco Research·DateDec 16, 2021

Live-streaming ads for alcohol, junk food increased during pandemic

A Penn State study found that live-streaming ads for alcohol, energy drinks, and junk food significantly increased during the pandemic, targeting young viewers. The researchers discovered that energy drinks made up nearly 80% of marketing, while ads for restaurants and soda were also prevalent.

SourcePenn State·JournalPublic Health Nutrition·TypeData/statistical analysis·DateDec 13, 2021

Lunar radar data uncovers new clues about moon’s ancient past

A team of scientists has discovered a thick layer of paleoregolith on the lunar surface, which could provide insight into the Moon's early asteroid impact and volcanic history. The findings suggest the paleoregolith formed much faster than previously estimated, with implications for understanding meteoric activity in the solar system.

SourcePenn State·JournalGeophysical Research Letters·DateDec 1, 2021

Salvaging rare earth elements from electronic waste

A new nanotechnology developed by Penn State researchers selectively recovers neodymium and other rare earth elements from electronic waste using plant cellulose. The process is environmentally friendly and can separate neodymium in seconds, making it a sustainable solution for recycling.

SourcePenn State·JournalChemical Engineering Journal·DateNov 23, 2021

Urbanization not always bad for food and land use diversity

Researchers developed a framework to evaluate urbanization's impact on food and land use biodiversity. Urban areas can provide a range of approaches to increasing food diversity, including peri-urban agriculture and small farms. Strengthening food biodiversity among the urban poor can improve nutrition and security.

SourcePenn State·JournalOne Earth·DateNov 19, 2021

Climate uncertainty colors flood risk assessment

A new framework assesses flood risk by integrating climate model outputs and hydrologic models to predict uncertainty. The study found that climate uncertainty dominates overall uncertainty, and areas prone to flooding in the future will be mostly the same as current ones.

SourcePenn State·JournalJournal of Hydrometeorology·DateNov 19, 2021

Keeping chocolate milk smooth, stable without carrageenan

A team of Penn State researchers used high-pressure jet technology to enhance the viscosity and stability of fat-free chocolate milk, eliminating the need for carrageenan. The study found that structural changes in casein micelles and new casein-cocoa interactions induced by the processing method increased cocoa stability.

SourcePenn State·JournalJournal of Dairy Science·DateNov 15, 2021

Coal creation mechanism uncovered

A team of researchers found that microbes are responsible for the formation and production of methane in coal deposits. They analyzed methoxyl groups in coal samples from around the world and used stable isotopes to show that organic material becomes coal through microbial action, contradicting traditional geochemical understanding.

SourcePenn State·JournalScience·DateNov 11, 2021

Adding herbs and spices to meals may help lower blood pressure

A study found that consuming high amounts of herbs and spices daily can lead to significant reductions in systolic and diastolic blood pressure. The researchers discovered that adding just 1.3 teaspoons of herbs and spices a day to an average American diet resulted in lower blood pressure after four weeks.

SourcePenn State·JournalAmerican Journal of Clinical Nutrition·TypeRandomized controlled/clinical trial·DateNov 8, 2021

Sick insects stick to comfortable conditions

Research shows that infection with a fungus decreases the thermal tolerance of aphids and their beetle predator, the common ladybeetle, by more than 40 degrees Fahrenheit. Infected insects are less likely to cross into zones that are too warm or too cold, altering predator-prey interactions as the climate changes.

SourcePenn State·JournalScientific Reports·DateNov 5, 2021

Is waking up to smoke a drag on people’s ability to quit smoking?

A recent study published in Behavioral Sleep Medicine found that people who wake up, smoke, and return to sleep are more likely driven by stress than nicotine addiction. To help these smokers quit, researchers recommend addressing their psychological distress and developing treatments that go beyond nicotine dependence.

SourcePenn State·JournalBehavioral Sleep Medicine·TypeObservational study·DateNov 3, 2021