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Penn State


Trauma screening may improve mental health service recommendations for children

A new study from Penn State finds that incorporating a trauma screening into child welfare evaluations leads to better identification of traumatic stress reactions and more appropriate service recommendations. The screening, developed by Christian Connell and Jason Lang, has been shown to increase referrals for specific trauma-focused ...

SourcePenn State·JournalJournal of Traumatic Stress·TypeData/statistical analysis·DateMar 11, 2024

Psychosocial stressors linked to higher inflammation in Black pregnant women

Research found that experiences of racial discrimination and perceived neighborhood racial composition are associated with higher levels of pro-inflammatory cytokines during pregnancy. Higher macrophage migration inhibitory factor (MIF) levels were linked to glucocorticoid resistance, a potential mechanism underlying preterm birth.

SourcePenn State·JournalBrain Behavior & Immunity - Health·TypeObservational study·DateMar 6, 2024

New role for bacterial enzyme in gut metabolism revealed

Researchers at Penn State have identified a bacterial enzyme, bile salt hydrolase, that produces new bile acid species in humans at birth, coinciding with the establishment of the gut microbiome. This discovery opens up new avenues for exploring the role of bile acids in human health and disease.

SourcePenn State·JournalNature·DateFeb 29, 2024

Cyber-physical heating system may protect apple blossoms in orchards

Researchers developed an autonomous heating system that uses real-time temperature and wind-direction data to warm fruit tree canopies. The system resulted in significantly reduced damage to apple tree buds in tests, with increased canopy protection times of over double and nearly triple in low temperatures.

SourcePenn State·JournalComputers and Electronics in Agriculture·TypeExperimental study·DateFeb 29, 2024

New structural insights could lead to mechanical enhancement in alloys

Researchers discovered that a new class of metallic materials with potential applications in aerospace and energy can withstand extreme temperatures and resist fractures thanks to their short-range order. The study revealed the interaction between short-range order and planar defects, which enhances the alloys' mechanical performance.

SourcePenn State·JournalNature Communications·TypeExperimental study·DateFeb 23, 2024

Common plant could help reduce food insecurity, researchers find

Researchers suggest Carolina azolla, a fast-growing aquatic fern, has the nutritional content to serve as a potentially vital food source after a catastrophe or disaster. The study found that cooking methods can significantly reduce polyphenolic content, making it digestible for humans.

SourcePenn State·JournalFood Science & Nutrition·TypeExperimental study·DateFeb 23, 2024

Black hole at center of the Milky Way resembles a football

A new study using NASA's Chandra X-ray Observatory and VLA data reveals that the supermassive black hole Sagittarius A* is spinning at about 60% of its maximum possible speed. This spin could provide an incredibly powerful kick to surrounding matter if the amount of material in the vicinity increases.

SourcePenn State·JournalMonthly Notices of the Royal Astronomical Society·TypeImaging analysis·DateFeb 21, 2024

Low voice pitch increases standing among strangers

A cross-cultural study found that lower voice pitch makes women and men sound more attractive for long-term relationships and more formidable among other men. Lower male voice pitch also confers formidability and high social status in societies with higher relational mobility, suggesting evolutionary origins.

SourcePenn State·JournalPsychological Science·DateFeb 8, 2024

Predicting neurodevelopmental disease in children from parent’s traits

Researchers found that parents' manifestation of neurodevelopmental and psychiatric traits can predict the prevalence and severity of disorders in children. The study analyzed 97,000 families and revealed a correlation between parental traits, suggesting that assortative mating may contribute to increased disease severity.

SourcePenn State·JournalAmerican Journal of Human Genetics·TypeData/statistical analysis·DateFeb 7, 2024

Trees struggle to ‘breathe’ as climate warms, researchers find

Researchers found that trees in warmer, drier climates release more CO2 than they absorb, potentially compromising their ability to mitigate climate change. The study used a global dataset of tree tissue to analyze photorespiration rates, which are up to two times higher in warmer climates.

SourcePenn State·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateJan 31, 2024

Evolutionary origin of mysterious immune system molecule in humans revealed

Researchers discovered that the human immune system borrowed a protein from a gene family responsible for cell migration to create an antibody-binding molecule. The J chain, which regulates antibody structure and function, originated from CXCL chemokines, a family of proteins regulating white blood cell movement.

SourcePenn State·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 30, 2024

Predictive model detects potential extremist propaganda on social media

Researchers developed a predictive model to detect users and content related to Islamic State extremists on social media, identifying potential propaganda messages and their characteristics. The study's findings can help social media companies and law enforcement agencies track and prevent the spread of extremist propaganda.

SourcePenn State·JournalSocial Network Analysis and Mining·DateJan 26, 2024

Women farmers quantitatively linked to better community well-being

Researchers at Penn State and University of Wisconsin-Madison found that women farmers approach their operations in ways that positively impact their communities. The study revealed a positive association between women farmers and local economic variables such as nonfarm entrepreneurship, life expectancy, and poverty rates.

SourcePenn State·JournalApplied Economic Perspectives and Policy·TypeData/statistical analysis·DateJan 17, 2024

Interactive screen use reduces sleep time in kids, researchers find

Researchers found that interactive screen use, such as texting and playing video games, before bed delayed sleep onset by up to 30 minutes, while passive activities had no significant impact. The study suggests that limiting interactive screen time in the hour before bed can help protect teens' sleep and overall health.

SourcePenn State·JournalJournal of Adolescent Health·DateDec 13, 2023

Bacteria's mucus maneuvers: Study reveals how snot facilitates infection

Researchers found that thicker mucus enhances bacterial collective motion, forming coordinated swarms that can increase antibiotic resistance and spread infection. The study demonstrates the importance of mucus in facilitating bacterial swarming, which could pave the way for new strategies to combat infections and antibiotic resistance.

SourcePenn State·JournalPNAS Nexus·TypeExperimental study·DateDec 5, 2023

Social media influencers may affect more than voter opinions

Researchers found that social media influencers with distorted messages cause political parties to moderate their policies to win over independent voters. However, this leads to traditional media outlets becoming more extreme in their editorial positions, and citizens swayed by influencers growing more polarized.

SourcePenn State·JournalMIS Quarterly·DateDec 1, 2023