Researchers found that traditional theories on career anchors do not apply to women's career choices, which are motivated by multiple factors. Human-resources personnel need to adapt hiring and retention practices to fit individual needs, rather than relying on static policies.
A Penn State study tracked youth's attitudes for most of the school age and adolescent years, finding varying patterns of change according to gender, birth order, and parent influences. Most youth became less traditional over time, but firstborn boys with brothers and traditional parents remained more traditional.
Researchers found that small hive beetles can detect some alarm pheromones at levels below those detected by honeybees. The beetles associate the alarm chemicals with a good food source and head for the hive. Domesticated European honeybees are not as diligent in cleaning their hives, making them more susceptible to infestation.
Researchers found that chronically bullied kids have lower cortisol levels, linked to anxiety and stress. The study suggests a biological marker for early recognition and intervention of long-term psychological effects on youth.
A new study from Penn State shows that eating low-calorie soup before a meal can significantly reduce total calorie intake. The study tested different forms of soup and found that low-calorie, broth-based soups are filling regardless of their form.
A Penn State study found that decreasing calorie density of foods with added veggies leads to reduced calorie intake and increased veggie consumption in children. Parents can try this strategy to combat childhood obesity and encourage healthy eating habits.
Researchers found that pistachio amounts of 1.5 ounces reduced LDL cholesterol levels by 11.6% and total cholesterol by 8.4%, while the higher dose showed significant reductions in lipoprotein ratios. Pistachios also increased antioxidants in the blood, which may help reduce inflammation.
A Penn State study found that eating pistachios reduced the body's response to stress in individuals with high cholesterol but normal blood pressure. The 3-ounce pistachio diet was most effective in reducing systolic blood pressure and improving vascular relaxation.
A study by Penn State researchers found that incorporating macadamia nuts into a heart-healthy diet can reduce total cholesterol, low-density lipoprotein cholesterol and triglyceride levels. The Healthy Heart diet with macadamia nuts was compared to a standard American diet in a controlled feeding study.
The Penn State researchers developed a new method to measure the phase shifts resulting from atomic collisions in ultracold cesium atoms. This technique allows for the detection of s-wave phase shifts independent of atom density, paving the way for breakthroughs in atomic physics and potential applications in Bose-Einstein condensates,...
Researchers have mapped nucleosome structures on a genome-wide scale, revealing an intimate relationship between DNA sequences and gene regulation. The study pinpointed critical gateways for transcription, showing how nucleosomes control gene function across the entire genome.
A long-term study found that salamander exposure to atrazine had persistent effects on mortality rates, even after recovery. Survivors of the exposure suffered lower survival rates compared to those not exposed to atrazine.
Researchers at Penn State have developed a new microbial fuel cell system that uses brush anodes and tubular cathodes to produce more power from wastewater. The system, which uses naturally occurring bacteria, can clean water while generating electricity, reducing the need for energy consumption.
A Penn State researcher suggests that overemployed workers who cut back on their hours may benefit work-life balance, quality of life, and create employment opportunities for the underemployed. The study found that 7% of workers prefer to reduce hours and income, which could lead to greater efficiency and employee retention.
The GRB's ejecta slam into interstellar gas, producing a bright X-ray afterglow that can radiate for several days. The slow fading of the afterglow suggests a larger energy injection than typical GRBs, with possible explanations including magnetar-powered engines.
Researchers discovered a sediment wedge beneath the Whillans Ice Stream in Antarctica, which provides stability against moderate sea level rise. The wedge, eroded by moving ice sheets, helps maintain the grounding line's location despite changes in relative sea levels.
A study found that benefits of increased homework vary widely across nations, grades, and quality of schools. In the US, there is a negative relationship between higher homework amounts and student achievement in elementary schools, but only a small benefit in middle schools.
A study of 10 Northeastern urban forests found no common urban park plant complex, but shows that population levels impact native and nonnative species diversity. The research suggests that urban park managers should consider the ratio of native to nonnative species when implementing vegetation restoration projects.
A team of Penn State researchers found that plant-derived omega-3 polyunsaturated fatty acids (PUFA) may have a protective effect on bone health. The study, which included a controlled diet with three diets high in PUFA, showed significant decreases in biomarkers of bone resorption.
Researchers have successfully replicated high-quality helium crystals exhibiting supersolid behavior, a phenomenon initially thought to be exclusive to poor-quality solid helium. The new findings suggest that supersolidity can occur in ultra-cold solid helium with crystallinity above 1%, contrary to previous theories.
Low birth numbers in early hominids combined with intense competition led to their extinction. Dr. Nina G. Jablonski reveals that environmental changes, such as shifting climate patterns, played a significant role in the demise of these ancient human ancestors.
A team of researchers at Penn State has discovered a master regulator that controls metabolic responses to essential amino acid deficiency, leading to profound effects on fat metabolism. The discovery may lead to new treatments for obesity and protein malnutrition, particularly in underdeveloped nations where malnutrition is prevalent.
A new microcontact insertion printing technique builds surfaces with specific functions inserted at known intervals, enabling analysis of biochemical mixtures and molecular-scale electronic components. The process allows for precise placement of isolated molecules in a predesigned nano-scale or micro-scale pattern.
A Penn State College of Medicine pilot study found that 89 percent of participants with diagnosed Crohn's disease showed improvement with low-dose naltrexone therapy, while 67 percent achieved remission. This novel approach offers a simple and safe treatment option for the chronic inflammatory disorder.
The study reveals that sediment folding may have contributed to the massive 2004 Sumatra tsunami. The unusual shape of the upper plate boundary, resembling a suspension bridge, created an area with multiple peaks and valleys that amplified water displacement when the plate snapped back.
Researchers found evidence of leech-borne transmission of a fungus-like organism infecting newts' muscles, which may affect their ability to reproduce. The infection is not fatal but can impact newt populations. Human activities, such as fertilizer use in wetlands, could lead to increased leech abundance and disease spread.
Despite significant research and development, nanotechnology remains largely unknown to the general public due to a lack of critical analysis and debate in popular media. Social scientists are underrepresented in nanotechnology studies, while some activists fear its potential risks without acknowledging its benefits.
Scientists have discovered a 'hybrid gamma-ray burst,' which exhibits properties of both long and short bursts. The burst's characteristics suggest that it may be signaling the birth of a new black hole, but its exact origin remains unclear.
A study found that reducing sugary drink intake in childhood can lower the risk of chronic diseases such as heart disease and diabetes. The research, led by Penn State, suggests that controlling weight gain and sugar-sweetened drinks may prevent metabolic syndrome in children.
Researchers found that current scenarios neglect a significant fraction of low-probability events, resulting in biased outcomes. By identifying key sources of overconfidence, they aim to critically reevaluate previous studies and improve uncertainty analysis.
A new system uses machine-learning methods to identify authors based on similar names, affiliations, and publication data, achieving 90.6% accuracy in a large-scale test. The algorithm will be integrated into the next generation of CiteSeer, the largest academic search engine.
A new process combines molecular self-assembly with traditional lithography to create multifunctional surfaces in precise patterns. This technique allows for complex patterns of functional monolayers, enabling applications beyond semiconductors.
Researchers found that soft drink ads in schools were linked to lower participation in school lunch programs, suggesting these ads compete with school lunches for students' attention. Schools' wellness policies provide opportunities to examine advertising that might conflict with their goals for a healthy climate.
A long-term ecological study of stream chemistry in Appalachians shows unexpected changes due to reduced sulfur emissions from acid rain. Researchers are seeing rising amounts of dissolved carbon dioxide in streams, which could impact the forest ecosystem and carbon balance.
A team of researchers found a significant link between ozone levels in Mexico City and US cities like Houston, highlighting the global impact of air pollution. The study used ozonesondes to measure ozone and other atmospheric variables, revealing that pollution from Asia can also affect the Pacific Northwest.
A new analytical technique developed by Penn State researcher John B. Asbury could lead to the development of cheaper and more efficient solar cells. The technique uses infrared spectroscopy to study light-sensitive organic materials, providing information about electron movement within a film of carbon-based materials.
Researchers discovered that biofilms in caves increase the rate of cave formation by using sulfur for energy, producing strong acid. Cave biofilms also provide food for various cave creatures and have similarities to dental biofilms and steel ship hull corrosion.
A new hypothesis proposes that a deficiency in the enzyme Pancreatic Endoplasmic Reticulum Kinase (PERK) during fetal development can lead to permanent neonatal diabetes. The research found that PERK-deficient mice have impaired beta cell proliferation, differentiation, and clustering, resulting in reduced insulin production.
Research on parasitic-infected dragonflies reveals metabolic disorders similar to human obesity and type-2 diabetes, with parasites triggering an inflammatory response and changes in metabolism. The study suggests that microbial communities found in human intestines may also contribute to these diseases.
Astronomers have observed a rare phenomenon of two supernovas occurring simultaneously in the same galaxy, with implications for our understanding of galaxy mergers. The high frequency of supernovas in NGC 1316 suggests that massive star formation may be driving this activity.
Researchers found that touch tracking bypasses the brain's cognitive system, allowing participants to perform multiple tasks simultaneously. This breakthrough could help individuals with coordination problems improve their hand movements.
A weeklong intervention in schools reduced adolescents' inclination to drink by teaching them critical thinking skills and strategies to question alcohol ads. The program, led by Penn State's Marvin E. Goldberg, equipped students with persuasion knowledge and processed advertising messages.
A team of researchers found that controlling population peaks on the edges of the gypsy moth range can help slow their invasion into virgin territory. The study's findings suggest that suppressing outbreaks near the invasion front could reduce the number of dispersers and prevent periodic surges of growth.
Researchers use digital signal processing methods to eliminate echoes and scatter, enabling high-speed data transfer through the atmosphere. The approach provides fiber optic quality signals for improved air-to-air and ground-to-air communication links.
A new report highlights the importance of ethics and justice in international climate negotiations, arguing that nations must acknowledge their duty to reduce emissions quickly and fairly. The report also calls for an end to using scientific uncertainty and national economic costs as justifications for not reducing emissions.
Researchers have developed an AI system that enables computers to interpret images and provide accurate annotations, improving the accessibility of online image collections. The ALIPR system can automatically tag images with relevant keywords, facilitating search and retrieval, and has been shown to be correct in over 98% of cases.
Researchers found that some viruses, like the human polyomavirus JCV, may be evolving at higher rates than previously assumed. The virus is traditionally used as a genetic marker for human migration and evolution, but its reliability has been called into question by this new study.
Researchers have developed a technique to measure precise conditions for electrically polarized ultrathin materials, revealing the ferroelectric state in next-generation memory chips and devices. The study shows that these materials can retain their properties at room temperature with thicknesses as thin as 4 nanometers.
Researchers have identified a connection between fracture traces and rock-cut tombs in Egyptian valleys, which may aid in locating and protecting previously undiscovered tombs. The discovery also offers insights into preserving the tombs from water damage, ensuring their preservation for future generations.
A Penn State study found that nearly 73% of college students don't believe the norms message, and those who do report similar drinking habits among friends. The study suggests that social networks have a greater influence on drinking behavior than previously thought.