Researchers found that non-expert consumers in Pennsylvania were more tolerant of methyl anthranilate, a compound causing the 'grapey' odor, due to frequent exposure to grape flavors. In contrast, wine experts in California rejected wines with high levels of methyl anthranilate. The study supports the idea that liking native grapes may...
Recent widespread fires in California suggest a shift in climate-fire relationships, where increased temperatures and drier summers will override the dynamical influence of the North Pacific Jet. The researchers reconstructed over 400 years of North Pacific Jet variability, finding that fire suppression may be responsible for this change.
Researchers designed and created proteins that mimicked different surface features of HIV, inducing rabbits to develop antibodies that could bind with the virus. The study provides a novel way to design proteins for vaccines, potentially paving the way for developing a vaccine for HIV.
Researchers at Penn State and MIT discovered that uniform-sized clear water droplets on a surface can produce bright iridescent colors. The color is due to total internal reflection and light interference, creating an optical effect not possible in perfect spheres.
A new study found that giraffes living near human settlements have larger home ranges than those living far from towns, while areas with more rain have smaller home ranges. This suggests that humans are impacting giraffe habitat and forcing them to travel longer distances to access critical resources.
Scientists have discovered a new way to monitor carbon dioxide storage plumes underground using coda waves, which reveal the location of gases in the ground. This method could enable more frequent and cost-effective tracking of these plumes, allowing for better estimation of total gas reserves.
Researchers at Penn State have identified a unique elastomeric protein called resilin in the pygidial glands of carabid beetles that protects them from their own toxic chemicals. This discovery has significant implications for the development of new barrier materials and tissue engineering applications.
Researchers found a link between genetic similarity and parenting in shaping virtuous character traits, including responsibility and conscientiousness. The study used data from 720 pairs of siblings to analyze the relationship between genetics and environment.
A study analyzing over 50,000 living rooms across six continents found that people tend to follow cultural trends when decorating their interiors. Americans, regardless of income level, also showed similar efforts in interior decoration.
The Habitable Zone Planet Finder enables precise measurement of a star's radial velocity, allowing detection of planets capable of having liquid water on their surfaces. The instrument uses near-infrared light to observe low-mass planets around cool nearby M dwarf stars in Habitable Zones.
Researchers at Penn State developed firefly-mimicking structures to improve light extraction efficiency in LEDs, achieving up to 90 percent. Asymmetric microstructures increase surface area for interaction with light and promote randomization of reflections, allowing more light to escape.
Research suggests that indigenous hunters play a crucial role in maintaining food webs in the Australian desert. The absence of human activity allowed invasive species to flourish, leading to extinctions of native animals. Traditional landscape burning practices also had a significant impact on the ecosystem.
Researchers can create synthetic networks that satisfy differential privacy requirements, enabling broader sharing of confidential data for scientific discovery. These altered datasets capture most statistical features from the original network, making them suitable for various researchers.
Synthetic fibers from polyester and nylon release microplastics into the environment, contaminating plants and animals in oceans. Biosynthetic fibers, derived from natural proteins, can replace synthetic fibers and provide recyclable and biodegradable alternatives.
Researchers used whole-genome sequencing to investigate a Bacillus cereus outbreak in upstate New York, revealing the causal agent produced an emetic toxin. The study highlights the potential of real-time data sharing to prevent and detect outbreaks more effectively.
Researchers developed a method using fluorescent compound AggTag to identify intermediate forms of proteins that misfold and aggregate in live cells, which are believed to contribute to neurodegenerative diseases such as Alzheimer's and Parkinson's. The method allows for simultaneous detection of multiple proteins with distinct colors.
Dr. Michael Mann received the 2019 Tyler Prize for Environmental Achievement for reconstructing the Earth's past climate and communicating modern climate change to the public and policymakers. He was honored alongside fellow climate scientist Warren Washington, with whom he shares a personal connection.
A new method uses machine learning to automate the process of preparing digital photos for analysis, allowing researchers to identify individual animals by their unique markings more efficiently. The system will accelerate studies on giraffe populations and can be applied to other species with similar identifying patterns.
Research suggests that bees' dispersal ability influences their population genetic structure, which can impact their response to environmental changes. Larger-bodied bees with social behaviors exhibit lower genetic diversity than smaller-bodied solitary species.
Researchers at Penn State discovered a simple drug cocktail that converts glial cells into functional new neurons, which can survive for over seven months in a lab culture. The approach has promising implications for treating neurological disorders such as stroke and Alzheimer's disease, with the potential to be used in a pill form.
Researchers at Penn State have released open-access satellite data to track seasonal population movements in Niger and Nigeria. This data can be used to address research questions in fields ranging from agriculture to epidemiology, particularly for infectious diseases and public health interventions.
Researchers predict a significant increase in opioid overdose deaths from 33,100 in 2015 to 81,700 in 2025, with illicit opioids accounting for 80% of these deaths. Interventions targeting prescription opioid misuse are expected to decrease overdose deaths by only 3-5%.
Researchers found that interactive features on websites can discourage some users from adopting healthy behaviors, particularly among smokers with limited tech familiarity. In contrast, engaging features helped power users (nonsmokers) absorb and believe anti-smoking messages more accurately.
A four-year study found that manure injection decreases overall phosphorus losses and promotes dilution of dissolved phosphorus, compared to broadcast manure applications. However, convincing dairy farmers to switch may be difficult due to concerns about sedimentation and site variability.
Researchers at Penn State College of Medicine identified 10 synthetic cannabinoid compounds that effectively inhibited the growth of seven types of human colon cancer cells. These compounds work through alternative mechanisms, not relying on traditional marijuana receptors, and hold promise for developing drugs to treat cancer.
Researchers found that the Greenland ice sheet was more sensitive to warming in the past million years, and that geothermal heat beneath the ice sheet played a crucial role in its formation and melting. The team's hypothesis suggests that past geological changes can help predict future ice sheet behavior.
Researchers at Penn State have identified a complex of proteins crucial for the maturation of the malaria parasite's sexual stage, which is required for transmission to mosquitoes. Disrupting this complex inhibits the parasite's ability to mature and infect mosquitoes, offering a new tool in the fight against malaria.
Researchers created membraneless protocells that facilitate chemical reactions, providing insights into the prebiotic 'RNA world'. These assemblies concentrate RNA molecules and enzymes, allowing them to participate in fundamental chemical reactions.
New research reveals that black students are more frequently suspended than white students of similar backgrounds, despite controlling for behavioral and socioeconomic factors. Students with disabilities were initially at greater risk but their risk was later explained by other study factors.
A new process creates a graded index Teflon-air film that eliminates reflections, making transparent plastics nearly invisible. The technology has practical applications in solar panels, eyeglasses, and virtual/augmented-reality headsets.
Researchers led by Penn State astronomer Pragati Pradhan found that stellar winds, composed of protons, electrons, and metal atoms, contain dense clumps. The Chandra data revealed a 'Compton shoulder' indicating back scattering by surrounding matter, providing new insights into star environments.
Researchers found that LGB individuals are more likely to experience drug and alcohol use disorders, anxiety and depressive disorders, and cardiovascular disease. The study used time-varying effect modeling to analyze data from over 30,000 participants and found age-specific disparities in health outcomes.
Researchers found that minority borrowers pay around 8% more in fees than similarly qualified white borrowers when working with white brokers. However, the study also reveals that minority borrowers do not receive preferential treatment from minority brokers.
Researchers develop a simple and inexpensive method using ultraviolet light to gather and organize particles in liquids, enabling precise control of fluid flow and potential applications in sensing, drug delivery, and nanotechnology. The method shows promise for sorting particles by size and moving uphill toward the light source.
Researchers found that lizards from high-stress environments had more robust immune systems when exposed to prolonged stress, suggesting a potential adaptive advantage. The study's results may have implications for human stress response and disease prevention.
A study of a long-protected northeastern virgin forest plot found that small forest fragments may not provide conservation benefits. Nearly half the species present at initial protection are now gone, and yearly species composition is highly dynamic. Effective management is needed to prevent degradation of habitat.
Researchers measured temperatures of slow-moving gas atoms surrounding a star after an exploding star's shock wave, answering a long-standing question about their physical processes. The results confirm the relationship between atomic weight and temperature, settling an important issue in astrophysics.
Scientists found evidence of a climate feedback that prolonged the Paleocene-Eocene Thermal Maximum (PETM), considered an analogue for modern climate change. The study suggests that long-lasting impacts on global temperature may occur even with reduced greenhouse gas emissions.
Researchers solve decades-long mystery of red pigments in corn by discovering a new gene, Ufo1, which controls the expression of a pigment pathway. The study's findings have significant implications for plant breeding, biofuel production, and crop protection from pests.
A cellular protein called Hsp70 plays a critical role in Zika virus infection, facilitating attachment to cells, replication inside cells, and release of mature virus particles. This discovery validates Hsp70 as a potential target for developing new therapies to prevent or treat Zika virus infection.
Oil companies can tap into vast sums of recoverable oil in unconventional reservoirs by adopting new methods that account for the unique physics found at these formations. By focusing on diffusion rather than pressure differences, researchers estimate that recoveries can be increased by two to three times.
A nationwide study found microbes in about half of homes, with a single species dominating all positive samples. Despite their presence, the microbes pose no health concerns and remain safe to drink. The discovery highlights the widespread colonization of water heaters by extremophiles in domestic environments.
A study of over 8.6 million cancer patients found that white males, younger patients, and those with specific types of cancer were more likely to commit suicide. The researchers aim to identify high-risk patients to tailor treatments and develop survivorship programs.
Researchers found that differences in genetic origins between mitochondrial and nuclear DNA can affect energy production by mitochondria. In populations with mixed ancestry, natural selection may guide the trajectory of mitochondria-related genes towards similar geographic origins.
Researchers at Penn State developed a technique to extract and purify alkylresorcinols (ARs) from rye bran, which can act as antioxidants in emulsions. The study found that ARs were not as effective as synthetic or natural antioxidants but showed promise for future development.
Researchers found that dairy cows' milk yield and composition follow predictable annual cycles driven by photoperiod, regardless of geographic location. The study's findings will help dairy farmers better manage their herds and interpret the effects of management strategies.
Biofabricated tissues with micropores allow for efficient nutrient and oxygen diffusion, enabling the growth of larger tissue samples. The novel approach uses stem cells derived from human fat and sodium alginate porogens to create porous tissue strands that can be implanted in bone or cartilage defects.
Researchers at Penn State used modeling methods to predict properties of ZIF glasses, combining transparency and metallic glass nonbrittle quality, with potential applications in gas storage and energy, promising breakthroughs in transparent and bendable glass
Loop quantum gravity allows physicists to extend gravitational physics beyond general relativity's limitations, enabling the analysis of black hole interiors. The theory predicts a repulsive force that can overwhelm classical gravity, potentially resolving the information paradox at black holes.
Researchers have developed a new method to analyze cardiac muscle cells derived from human pluripotent stem cells, using a non-invasive fluorescence technique that enables faster and more accurate analysis. This breakthrough method uses CRISPR-Cas9 to generate a calcium-indicating reporter stem cell line, which allows for the examinati...