The US patient underwent the second procedure in the revised Phase I human clinical trials at Penn State Hershey Medical Center. The Arrow LionHeart device has shown promising results in lengthening and improving the lives of patients with end-stage heart failure.
Researchers studied business models adopted by European mobile operators, finding that interfirm networks offering content services can provide a competitive advantage. The study explores three models and their impact on the role of customers and content providers.
A recent study found that CACFP monitors play a crucial role in ensuring program quality and child nutrition. The researchers recommend focusing on top five training needs, including program regulation and record keeping, to improve monitor training.
A new instrument, Decisional Involvement Scale (DIS), assesses the level of involvement registered nurses have in decisions affecting their work environment and patient care. The DIS can help hospitals identify areas for improvement and implement changes to reduce staff turnover and enhance quality of care.
Despite minimal changes in marital happiness and divorce rates, researchers found a decline in shared activities among couples. Equalitarian marriages have a positive impact on marital quality, while cohabitation before marriage leads to lower marital satisfaction.
Scientists identify enzyme in plants that triggers S1P production, a molecule involved in regulating cell proliferation and death. The discovery sheds light on plant's ability to withstand drought and may lead to development of crop varieties with higher yields and greater resistance.
Researchers at Penn State College of Medicine discovered a possible explanation for restless leg syndrome, finding that brain cells lacking enough iron may cause misfiring of neural signals. This discovery establishes RLS as a sensory motor disorder rather than a psychological one, offering hope for future treatments.
The CAST software anticipates team members' information needs, finds commonalities, and determines data processing. This helps improve team decision-making and collaboration in time-critical environments.
A new study suggests that PTEN dysfunction is responsible for 30-60% of melanomas and offers a potential therapeutic approach to kill cancer cells. The introduction of PTEN into melanoma cells could be a useful treatment option, but the cancer cells may eventually learn to evade this approach.
A Penn State researcher found that few churches have adopted IT tools, leaving them out of funding opportunities. Churches can provide digital literacy to bridge the digital divide and support urban areas.
A Penn State researcher found that less than 30% of drivers recognize the Slow Moving Vehicle (SMV) sign. The sign's inconsistent day/night appearance and potential confusion with other symbols contribute to the low comprehension rate. Improving motorist education and enforcement could help increase recognition.
The study found that African Americans in the Appalachian region are 18% more likely to have proximal colon cancer and 56% more likely to have advanced-stage disease. This disparity may be due to screening disparities leading to delayed detection and lower recovery rates.
A new study reveals that dogs cause a stronger reaction in asthmatics than cats, even though more people are allergic to cats. The study found that dogs triggered a combination of reactions that included reduced air exhalation and increased nitric oxide release due to inflammation.
Researchers found that removing query operators from searches on multiple engines resulted in similar top-ranked results. The 'or' operator was the only marker to significantly change results, while 'must appear' yielded identical results fewer times on MSN than Google and AOL.
A recent study found that daily smokers experience impaired time estimation when abstaining from cigarettes for 24 hours. This impairment may contribute to feelings of stress and decreased focus, highlighting the need for further research on nicotine's effects on attention processes.
A new virtual mockup at Penn State has shown promise in reducing construction costs by enabling more efficient scheduling. Experiments with experienced superintendents and students found that the interactive method saved up to 33% of time.
A new six-month study investigates continuous combined oral contraception for its potential to prevent periods easily and safely. The study hopes to show whether breakthrough bleeding ceases in women taking this new regimen.
According to a Penn State study, African-Americans are more likely to support higher cigarette taxes, particularly among younger Blacks, those at higher educational levels, and former smokers. The study found that increasing taxes can decrease smoking prevalence rates and generate revenue for tobacco cessation programs.
Researchers discovered that PERK enzyme is a key regulator of protein synthesis in humans, leading to growth retardation, skeletal abnormalities and diabetes. Treatments targeting IGF-1 may offer therapeutic interventions for diseases like Wolcott-Rallison Syndrome.
Experts recommend developing strategies to persuade consumers to eat in moderation, including marketing and labeling changes. Modified foods with reduced fat and added water-rich vegetables can also help reduce calorie intake while maintaining palatability.
A recent study by Dr. Lynette Kvasny found that minority women view technology training as empowering, enabling them to connect with their children and overcome poverty and social alienation. They see IT skills as a means to transform and shape inner-city communities, rather than just advancing in the workplace.
A Penn State study found that larger restaurant portions increase calorie intake, regardless of whether consumers eat all or most of the food. In a related two-day study, participants who received more food consumed more calories, even if they had eaten less the previous day.
Researchers found that positive attitudes toward exercise most strongly influenced intention, followed by control over obstructing factors. Pregnant women who exercised reported improved physical condition, reduced discomfort, and increased energy. Postpartum barriers include exhaustion and lack of time.
Researchers found over 100 distinct fossil leaf species, including dicots, monocots, and conifers, at the Laguna del Hunco site. The discovery reveals that high neotropical diversity existed as far back as 52-53 million years ago.
A Penn State study found that younger generations rely on the internet for travel information, while older populations turn to radio and TV. Internet awareness is increasing, leading to a substitution effect where TV users shift to using the internet and radio, and telephone use also increases.
Tiger's eye was previously thought to be an example of pseudomorphism, but researchers have found that the stone's shimmering appearance is actually caused by the presence of crocidolite fibers. The discovery challenges a long-held theory on the formation of tiger's eye and provides new insights into its structure.
Researchers at Penn State have developed an early flash flood warning system that can potentially save lives and property by forecasting extreme weather events. The system uses a combination of dynamical and statistical models to identify patterns and anomalies in atmospheric conditions, allowing for three-day advance warnings.
Researchers have found evidence of high-speed winds blowing copious amounts of gas from the cores of quasar galaxies, powered by black holes. The winds may regulate black hole growth and create new stars, with a wind transporting substantial amounts of carbon, oxygen, and iron into the interstellar medium.
Researchers found that bacterial polymers, similar to hair, play a crucial role in adhesion. The discovery opens up possibilities for controlling bacterial behavior and improving methods for cleaning groundwater and preventing medical problems.
A study of 664 patients with moderate papulopustular facial rosacea found that azelaic acid 15% gel significantly reduced redness and the number of inflammatory lesions. The treatment also showed promise for improving overall quality of life, with patients reporting comfort and satisfaction with the product.
Researchers developed an underwater sensor system that uses hierarchical, acoustic method to transfer information from sensors in water to the air for monitoring of rivers, lakes, and ponds. The system enables continuous, in-place monitoring, which is easier, more timely, and less expensive than traditional methods.
Penn State researchers found that wives with higher testosterone levels were more adaptive social support providers, while husbands with lower testosterone levels were more positive and less negative during discussions. Lower combined testosterone levels led to better social support givers and improved conflict resolution skills.
A new method, KL clustering, has been identified as more effective than hierarchical clustering in separating gene expression data into dense clusters. The approach uses a novel measure of similarity to create well-separated clusters, offering insights into gene-gene interactions and biological processes.
Penn State scientists are developing genetically engineered plants that can detect and signal harmful chemical or biological agents. These 'sentinel plants' could be used to warn of bioterrorism threats, locate land mines, and even monitor environmental conditions in agriculture.
A study of wild black bears found that they recover from bone loss caused by inactivity through a mechanism involving increased bone formation during remobilization. This suggests that hibernating bears may minimize bone loss and completely recover lost bone, providing potential insights for treating osteoporosis.
A new computer simulation reveals that burning particles of highly reactive gas can leap out in front of an explosive shock wave and ride it, sparking reactions ahead of the wave. The model predicts ultrafast detonations can occur in laboratory experiments.
Researchers found a correlation between fluence and duration for both short and long bursts, but the degree of this relationship is statistically different at a 4.5 sigma significance level. This suggests that short bursts may originate from fundamentally different physical processes than long bursts.
Researchers have analyzed fossil records of plants and insects to understand how the Earth's climate has changed over time. The study reveals that the K-T boundary, which marked the extinction of dinosaurs, was caused by an extraterrestrial impact, while the P-E interval saw a more gradual change due to global warming.
A Penn State cartographer emphasizes the importance of careful color choices in visual representation to reveal relationships and patterns in complex data. An online web tool, ColorBrewer, provides pre-designed color palettes that cater to color blindness and are suitable for various mediums.
The behavior of punishing others for their injury is widespread in the animal kingdom, with humans adding a conscious sense of what to achieve through revenge. This leads to complex social rules governing who can be targeted and when, often prioritizing balance over personal relationships.
Early Mars research suggests that the planet may have been too cold to melt water, contradicting Dr. James F. Kasting's theory of a greenhouse effect. However, Kasting proposes that methane-producing bacteria could have warmed the planet, allowing for the formation of features like Nanedi Vallis.
The Centralia, PA underground coal fire has been burning since 1962 and is still active today. Temperature measurements indicate the fire advances at an average rate of 66 feet per year, with some months showing little movement.
Researchers at Penn State have developed a method to convert food processing wastewater into energy sources, including hydrogen and methane. This process can reduce treatment costs by up to 80% and produce over 10 billion BTUs of energy per year.
Researchers from Penn State developed expendable microphones to locate survivors in collapsed buildings. The team found that placing microphones in voids reduces surface noise, allowing acoustic search to continue without interfering with rescue operations.
A new protocol developed by Penn State professor Jonghun Park can allocate resources up to 10 times faster than existing technology. The decentralized protocol allows for efficient resource allocation, solves deadlock and livelock problems, and enables collaboration across multiple independent organizations.
The new flat motor can be configured in various formats, including a thin version that can drive changes in airplane wing camber or serve as the drive element in compact laptop computers. The prototype has reached high speeds and maximum torque of 0.4 Nm, with cost estimates as low as $10 for mass production.
A recent study by Dr. Michelle A. Miller-Day found that 70% of adolescents prefer discussing important topics with their mothers. The study, which surveyed 67 African-American and White teens aged 11-17, suggests that teenagers are more likely to confide in their mothers about drug use and extend those conversations to their peer groups.
A study found that iron supplements improved iron status and reduced sick days in anemic children, regardless of the presence of upper respiratory tract infections. The research showed no increase in gastrointestinal side effects from supplementation.
Nei's work has developed statistical methods to study genetic diversity, evolutionary relationships, and species divergence. He pioneered the neighbor-joining method for constructing phylogenetic trees, widely used worldwide.
Researchers have resolved terrestrial paleoclimate records near the K-T boundary, correlating with marine data. Climate changes occurred globally, with warming events occurring 66 million years ago, and cooling trends preceding the K-T collision.