Researchers use cryo-electron microscopy to visualize a sirtuin enzyme bound to a nucleosome, clarifying how it accesses DNA and histone proteins to modulate gene expression. The study provides insight into the function of SIRT6 in humans and other animals.
A new AI-generated vaccine targeting T-cells provides broad coverage against future COVID-19 variants, potentially lasting longer than current antibody-based vaccines. This innovation has the potential to be used for seasonal flu and other vaccines, offering a long-lasting solution to emerging viral diseases.
Researchers found temperature to be the predominant driver of dissolved oxygen dynamics in US rivers, outperforming light and flow as factors. The study used a deep learning model to analyze data from hundreds of rivers across the United States, revealing the importance of temperature in maintaining water quality.
Researchers develop soft, self-charging bio-inspired power sources for space applications, addressing lithium-ion battery limitations. The new technology uses electric fish-inspired charge-separation principle to produce high-voltage power, potentially recharging from available resources like sunlight.
Users appreciate automation's ability to learn personal preferences, reducing tedious tasks. However, they also desire user control and consent for system engagement, leading to a delicate balance of interactivity and automation.
Researchers at Penn State found that broccoli's aryl hydrocarbon receptor ligands bind to a protein in mice, promoting gut health and reducing disease. This interaction activates various activities that affect intestinal cell functions, leading to improved gut barrier function and resilience.
A new study suggests that exposure therapy can be an effective treatment for adolescents with eating disorders, particularly in reducing anxiety towards food. The study found that exposing patients to feared foods, such as candy bars and pizza, helped decrease their anxiety levels and improved their relationships with food.
A Penn State-led research team developed a statistical method to predict the effects of climate change on cold-blooded animals. The Physiologically Guided Abundance Model (PGA Model) combines field and laboratory data to forecast species geographical distributions and abundance in response to warming temperatures.
A new study reveals that the squash bee has evolved in response to increased agriculture, particularly squash cultivation. This adaptation allowed its population to expand significantly, making it an essential pollinator of these crops.
A Penn State-led team has discovered a new physical mechanism explaining naturally occurring X-rays associated with lightning activity in the Earth's atmosphere. The researchers developed a mathematical model that explains how electric fields amplify electrons, driving the phenomenon of relativistic runaway discharges in air.
New research reveals SARS-CoV-2 spike protein mutations made the virus more rigid and improved its ability to transmit through nasal droplets and infect host cells. This could mean newer vaccines are effective for longer against emerging variants.
The Swift Observatory team, led by Maia Williams, detected the brightest gamma-ray burst ever recorded, GRB 221009A. The burst was incredibly bright and had an afterglow that was more than 10 times brighter than any previous observation.
Researchers used eye-tracking software to study how building inspectors assess structures, finding that experts focus on specific issues for longer periods. The study aims to develop an algorithm to inform autonomous robots for building inspections.
A new soil sensor has been developed to accurately measure temperature and nitrogen levels in soil, enabling farmers to optimize fertilizer use and reduce environmental pollution. The sensor can decouple temperature and nitrogen signals, allowing for precise monitoring of crop health and growth.
A new study by Penn State researchers found that ground beetle species will thrive or decline based on their habitats and traits. Habitat conservation can help mitigate the effects of climate change on these insects, which are critical pest control agents in North American agriculture.
A recent study found that U.S. college students have low awareness of wild bee species, with their knowledge focusing primarily on honey bees and pollination services. The researchers suggest that education alone may not be enough to produce attitude and behavior change, and propose a novel approach using semantic network analysis and ...
A new discovery identified a gene encoding a transcription factor that triggers the development of root cortical aerenchyma, enabling corn roots to capture more water and nutrients from dry soil. This trait results in air passages forming in the roots, making them metabolically cheaper and more efficient in exploring the soil.
Researchers have identified early warning signs of Antarctic ice shelf collapse prior to the 2002 Larsen B collapse. The study suggests that widespread flow acceleration and frequent small-iceberg calving may serve as precursors to destabilization, controlled by both atmospheric and oceanic warming anomalies.
Researchers developed a deep learning model that provides improved predictions of air quality in wildfire-prone areas, distinguishing between wildfires and non-wildfires. The ST-Transformer model uses sparse attention to prioritize relevant information and captures trends associated with wildfires.
A new technique combining underused satellite and radar data in weather models may improve thunderstorm predictions by capturing a more accurate picture of initial conditions in the boundary layer. This technique showed promise in improving forecasts of convection initiation, several hours before the thunderstorms occurred.
A new biosensor developed by Penn State researchers offers dynamic insights into manganese's role in biological systems, opening doors to new research applications. The sensor's capabilities may lead to breakthroughs in understanding photosynthesis, host-pathogen interactions, and neurobiology.
A Penn State-led research team developed a flat, pancake-sized metalens telescope that can capture clear images of distant objects, including the lunar surface. The innovation uses deep ultraviolet photolithography to produce larger pattern sizes and reduces manufacturing costs.
Research from Penn State found that self-monitoring physical activity through smartwatches leads to increased motivation and activity levels. Participants who received prompts to report their activity took hundreds more steps in a given day compared to those who didn't receive such prompts.
Scientists have defined the full-length structure of p53, a crucial protein that regulates cell growth and division. The study reveals how mutations in p53 can lead to cancer by disrupting its ability to grasp DNA, highlighting potential new therapeutic approaches.
Researchers discovered that wasps lower the pH level of their developing gall to acidic levels similar to those found in pitcher plants, potentially using it as a defense mechanism against predators. The study reveals a novel manipulation of host-plant chemistry, where malic acid accumulation and low pH levels deter enemies.
Researchers developed a new heterostructure of layered two-dimensional materials that could enable quantum computing to overcome key barriers. The material's topological properties are expected to protect the quantum state from environmental disturbance.
A new study found that trauma leads to high levels of intergenerational substance use among Black women, with 30% increased odds of drug use and 40% increased odds of Child Protective Services cases. The researchers also highlighted the importance of understanding the prevalence and impacts of these issues among minority populations.
A giant lacewing with a wingspan of roughly 50 millimeters was discovered in Fayetteville, Arkansas, setting a historic record for its appearance in the region. The insect's reappearance suggests there may be relic populations yet to be discovered, and its presence has sparked debate about the impact of human activities on biodiversity.
Researchers at Penn State College of Medicine identified a biomarker, IL13Rα2, in blood plasma to diagnose and track glioblastoma. Elevated levels of IL13Rα2 predicted longer overall survival, suggesting tissue healing.
A Penn State-led team developed a new process to fabricate large perovskite devices, which are more cost- and time-effective than previously possible. The technique, called electrical and mechanical field-assisted sintering (EM-FAST), allows for the creation of high-quality materials with controlled properties.
A new Penn State-led study reveals that workers in the US food supply chain are at a high risk of serious injury due to unique hazards such as product movement. The researchers found that fractures of the lower extremities were most prevalent, with transportation-related accidents being the most frequent type.
A newly developed superhydrophobic biosensor can detect insensible, or vapor, perspiration, which is difficult to measure. The sensor allows for continuous tracking of skin health and disease conditions, such as eczema and wound healing, by monitoring thermoregulation and skin barrier functions.
Researchers identify a new mechanism of corrosion morphology using electron tomography and theoretical calculations, finding a one-dimensional wormhole structure in metal alloys. The study could lead to the development of more advanced materials with improved resistance to localized corrosion.
A team of scientists has discovered six massive galaxies in the early universe, challenging current theories on galaxy formation. These galaxies are estimated to be as mature as the Milky Way and were found when the universe was only 3% of its current age.
A Penn State-led research team found that language models can plagiarize content in three ways: verbatim, paraphrase, and idea reuse. The study highlights the need for more research into text generators and their potential ethical implications.
The study introduces a new design paradigm for electromagnetics using compliant mechanisms, which can change operating frequencies without hinges or bearings. This technology surpasses origami designs in robustness and long-term reliability.
Fresh meat recalls can significantly reduce customer demand, with large recalls causing a larger loss in meat demand. The study suggests that companies can take action to prevent food recalls by increasing mandatory inspection of fresh meat products and developing standard regulations.
A Penn State-led research team has invented a new class of ion-exchange membrane wafer assemblies that significantly improves electrodeionization's ability to capture p-coumaric acid from liquid mixtures. The new design reduces the amount of membrane needed, resulting in cost savings and increased efficiency.
A new study found that powerful storms called atmospheric rivers are increasingly reaching the Arctic in winter, slowing sea ice recovery. These storms carry large amounts of water vapor and produce extreme rainfall and flooding when they make landfall.
A new study led by Penn State scientists sheds light on the temperature sensitivity of silicate rock weathering, a process that helps control Earth's climate. The research combines laboratory measurements and soil analysis to create a global estimate for how weathering responds to temperature changes.
Researchers developed a new, low-cost sensor that can detect humidity changes in various settings, including daycares, hospitals, and at home. The sensor uses a simple pencil-and-paper design and has been integrated into smart diapers and wearable respiratory monitors.
A Penn State-led study found that the timing of disruptions is more damaging to invertebrates than severity. Aquatic organisms in Sycamore Creek responded to winter floods and summer monsoon events differently, with some populations being resistant or resilient to disturbances.
A recent study published in Forest Ecology and Management found that deer browsing had relatively little long-term impact on two tree species in a northern forest. Researchers discovered that seedling survival and growth were more greatly influenced by light availability, soil nitrogen, and size attained before gaps were created.
Researchers used machine learning to analyze data sets for patterns and trends, identifying over 400 genes related to smoking behaviors. The study suggests that certain medications, such as dextromethorphan, could be repurposed for smoking cessation.
A new study by Penn State researchers found that US honey bee colony loss is primarily related to parasitic mites, extreme weather events, and nearby pesticides. The study integrated multiple large datasets at different spatial and temporal resolutions to assess various potential stressors associated with colony collapse across the US.
A novel microneedle patch can immediately stop bleeding after injury, reducing clotting time from 11.5 minutes to 1.3 minutes and bleeding by over 90%. The biocompatible and biodegradable technology promotes rapid blood coagulation and wound closure.
A newly developed pop-up electrode device can gather in-depth information about individual neurons and their interactions, while limiting potential brain tissue damage. Researchers have designed the device to be stiff upon insertion but flexible afterwards, providing a 3D layout of neurons and brain connections.
A new study by a Penn State-led research team found that the intensification of crop use led to changes in age-independent mortality rates in pre-colonial North America. The first stage of agricultural intensification coincided with lower age-independent mortality, while the second stage was associated with a rise in it.
Penn State researchers created a customized food safety training program for farmers market vendors, addressing inadequate practices in Pennsylvania and other states. The program resulted in significant knowledge gains and changes in attitudes among participants.
Scientists discover that altering environmental conditions, particularly humidity, can enable the control of super-lubricity in materials. By exposing graphene to water vapor and phenol vapor, researchers found a 25-45 times increase in low friction, paving the way for practical applications in MEMS devices.