The Living While Black index combines economic, social, and health factors to assess the quality of life for African Americans. Religiosity serves as a buffer, reducing the impact of stressors. Economic factors like poverty rates and business sales negatively affect quality of life.
Researchers discovered that parasitic plants like Cuscuta pentagona sense and respond to volatile chemicals emitted by potential host plants. They found that dodder seedlings grew towards tomato plants in a specific direction, indicating a directed growth response.
Alberto Bressan has been selected to receive the Antonio Feltrinelli Prize for his groundbreaking research on hyperbolic conservation laws. The prize is awarded annually in the area of physical and mathematical sciences, recognizing achievements that contribute to the development of new mathematics.
A computer model of the stomach revealed a narrow path, dubbed the Magenstrasse, where food exits rapidly and particles are processed differently. This discovery may explain observed high variability in drug initiation time and have important implications for drug delivery and digestion.
Astronomers have discovered a small brown dwarf star orbiting a Sun-like star with a planet, revealing a new class of coldest brown dwarfs called T dwarfs. The team also found another smaller brown dwarf in the same system, which may be the youngest known T dwarf, providing a snapshot of early brown-dwarf development.
A study found that direct-to-consumer advertising of Vioxx increased the proportion of osteoarthritis patient visits for which a prescription was written for Vioxx. However, Celebrex ads were associated with higher rates of Vioxx prescribing, but not significant changes in Celebrex prescriptions.
Chemical cues from fathers may be delaying the onset of sexual maturity in daughters as part of an evolutionary strategy to prevent inbreeding. Researchers found that girls without fathers matured approximately three months before those whose fathers were present, with urban environments also linked to earlier menarche.
A new study found that removing deer from small areas can lead to increased tick populations and higher rates of tick-borne diseases. In contrast to previous studies, researchers discovered that smaller deer-free zones tend to harbor more ticks, making them potential disease hotspots.
New fossil evidence reveals plant and insect diversity were out of balance during Paleocene Epoch. Insect predation was low in most areas, but unexpectedly high in two early Paleocene sites, Castle Rock and Mexican Hat.
The study's findings suggest that the presence of oxygen in the atmosphere may not have been as absolute as previously thought, with fluctuations occurring over time. The researchers analyzed ancient sediments and found that sulfur isotope ratios did not exhibit abnormal patterns consistent with an oxygen-free atmosphere.
A team of researchers finds that the skeletal remains of LB1, previously claimed to be a new species, actually belong to the ancestors of modern human pygmies. The study reveals microcephaly and growth abnormalities, which were initially misinterpreted as evidence of a new species.
Kurt Gibble's paper analyzes the speed of an atom after absorbing a photon of light and shows that photons in narrow laser beams deliver less momentum than those in wide beams. This discovery has implications for atomic clocks, which use microwaves to achieve high accuracy, potentially allowing them to be even more precise.
A recent study has found that crenarchaeota, a group of single-celled microbes, are the Earth's most abundant land-based creatures capable of oxidizing ammonia. This discovery challenges the long-held belief that bacteria were solely responsible for nitrogen cycles.
A study by Penn State researchers found that breaks in hibernation may be an evolutionary mechanism to combat bacterial infections. Regular wake-ups help animals avoid serious infection while minimizing energy loss.
Researchers found that fans of 'The Bachelorette' were upset when the female contestant rejected potential suitors, despite her honesty about not having chemistry. The study suggests that viewers prefer fantasy and escape over reality, with most able to distinguish between media portrayal and real life.
A Penn State study reveals that embedded reporters significantly impacted war coverage, prioritizing soldiers' personal lives and downplaying the effects of the invasion on Iraqi civilians. The analysis of 742 print news articles found that embedded reporters published stories with soldier sources in 93.2% of the analyzed stories.
A Penn State researcher has developed a process that converts organic matter in corn waste into electricity, with a conversion rate of over 93 percent. This technology could provide a new, sustainable source of energy, reducing reliance on ethanol and other fossil fuels.
A Penn State study found that providing nutritional information at the point of service increases student satisfaction with food quality, but not ambiance or cost. The researchers also noted that students who were more empowered to make informed choices had higher ratings for service personnel.
A Penn State study found no evidence of youth targeting in alcohol magazine ads, despite criticism and proposals for stricter limits. The study analyzed 28 magazines and found significant effects from advertisement price, audience size, and adult demographics.
Mushrooms contain high levels of polyphenols and ergothioneine, which contribute to their antioxidant properties. The study found portabella and crimini mushrooms have the highest ORAC values, indicating they are a valuable addition to a varied diet.
Lueking's group inadvertently stumbled upon a method that combines hydrogen production and storage, producing nanocrystalline diamonds as a by-product. The researchers used ball milling to mix anthracite coal with cyclohexene, resulting in the formation of Bucky diamonds.
A new algorithm has been developed to improve mobile data retrieval efficiency, allowing users to access data more quickly without increasing power consumption. The technique uses parallel air channels to reduce channel switching and minimize battery drain.
Researchers find that tropical Atlantic sea surface temperature is driving increase in hurricane numbers, with human-caused cooling from pollutants tempering the effect. The study suggests global warming as a primary cause of increased hurricane activity.
A recent study by Penn State researchers found that 89% of patients with diagnosed Crohn's disease showed improvement with therapy using naltrexone, while 67% achieved remission of symptoms. The treatment has been shown to be simple, safe, and cost-effective compared to traditional steroid treatments.
Researchers found sulfur-eating bacteria infect giant tubeworm larvae through their skin, not stomach as previously thought. The bacteria then induce tissue differentiation to form the trophosome, a specialized organ housing the symbionts.
A study of 167 women in IT across four countries reveals that cultural factors, such as societal messages and family dynamics, play a significant role in shaping career choices. The research suggests that recognizing diversity may lead to more opportunities for women, and challenges traditional assumptions about work-life balance.
A team of researchers at Penn State has discovered a mathematical description of a contracting universe that existed before the Big Bang, with space-time geometry and gravity exhibiting unique properties. The findings rely on loop quantum gravity theory, which proposes a discrete 'atomic' structure to space-time.
Penn State researcher Karen Bettez Halnon finds middle class embracing muscles, motorcycles, and tattoos as new form of gentrification. This symbolic takeover relegates lower classes to the periphery, with extreme measures taken by disaffected groups to defend against encroachment.
A new theory suggests that life emerged in environments with unique biochemistry, such as oxygen-free sediment. The microbe Methanosarcina acetivorans produces both methane and acetate, shedding light on early metabolism and the evolution of microbial production of methane.
A recent study by Penn State researchers suggests that a massive whole-genome duplication event in early flowering plants could explain their rapid evolution. The team detected a concentration of duplicated genes, which is evidence of a whole-genome duplication event.
The PACT software provides a framework that protects metadata while enabling semantic interoperation and sharing of information. It automatically regulates access to data, preserving security while allowing permitted access.
A Penn State study found that perfectionist fathers can reinforce negative eating habits in their sons and daughters, which can lead to anorexia and other clinical illnesses. The researchers suggest that treating maladaptive eating disorders requires a focus on the patient's relational network, including communication with parents.
A new study uses a salivary test to measure alpha amylase levels in children, finding that social relationships with mothers and teachers influence stress responses. The findings suggest that individual differences in alpha amylase levels can be linked to social problems, aggressive behavior, and cognitive/academic difficulties.
A team of researchers, including biological anthropologists and physicians, studied the relationship between the brain and skull in infants with craniosynostosis using CT scans and MRIs. They found a strong correlation between neural structures located near the top of the brain and bony features at the base of the skull.
Researchers at Penn State have developed a one-dimensional gas system that exhibits remarkable stability despite collisions among atoms. The system, dubbed the 'Quantum Newton's Cradle,' has been observed to maintain its momentum profile unchanged even after thousands of collisions.
A study by Penn State researchers found that stricter law enforcement policies have led to an increase in girls' arrests for assault, not a rise in violence. Despite this, other national sources of information on youth violence show little overall change in girls' levels of aggression over the past two decades.
Penn State's Center for Dirt and Gravel Road Studies is recycling 500,000 discarded tires into road fill, reducing sediment pollution and mosquito breeding grounds. The project uses bailed tires to fill degraded dirt roads, incorporating drainage structures to prevent water runoff.
A study found that teenage mothers with iron deficiency during pregnancy had children who were less active and responded slower to their environment. The researchers suggest that a mother's nutritional status in pregnancy affects the behavior and personality of the child.
A study published in the Journal of the American Dietetic Association found that preschool children who watched TV during lunch ate significantly less than those who did not. However, children who frequently watched TV also tended to eat more on TV days, suggesting a potential link between TV viewing and overeating in young children.
Researchers have discovered a plant enzyme called Mir1-CP that protects corn from pests by degrading insects' peritrophic matrix. The enzyme accumulates at feeding sites within an hour of caterpillar feeding, causing impaired nutrient utilization and inhibiting growth.
Researchers have developed a coal-based jet fuel, provisionally designated JP900, which produces almost the same Btu as conventional fuels. The fuel has improved flash point, lower viscosity, and higher smoke point, making it suitable for existing engines and interest both commercial and military users.
Researchers created a simple biophysical model of an axon that reproduced catastrophic oxidative stress-induced collapse, characteristic of neurodegenerative diseases. The study also revealed the role of free radicals and antioxidants in axon degradation.
A team from Penn State University and the University of Southampton has developed a new way to combine semiconductor devices with microstructured optical fibers. The resulting ability to generate and manipulate signals inside optical fibers could have applications in fields such as medicine, computing, and remote sensing devices.
A recent study published in the Journal of Youth and Adolescence found that body image plays a significant role in shaping sexual risks taken by men and women. The research suggests that young women with positive body images are less likely to engage in risky behaviors, while young men with positive body images may actually be more lik...
Researchers analyze gamma-ray burst GRB 050904 to understand the conditions of the early universe. The burst, detected in 2005, provides a probe to study the universe beyond the reach of large telescopes.
A new saliva test detects changes in alpha amylase levels, offering a more comprehensive understanding of the body's response to caffeine and stress. The study found that moderate doses of caffeine improve task performance but excessive amounts can lead to decreased performance.
Researchers found a sizeable and active archaeal community in deep sediment layers using energy from breaking down methane molecules. These microbes live on the slow side, requiring less energy to maintain and taking longer to divide than expected.
Laptop computers combining toy features with innovative tech are accelerating learning and communication ability in disabled children, according to Penn State researchers. The technology has shown a significant improvement in communication skills and vocabulary for early readers among 2-3 year olds.
The InterRidge statement of commitment emphasizes the need for responsible research practices in deep-sea vent areas. The statement aims to establish professional standards and promote awareness about the potential consequences of human impacts on these extreme ecosystems.
Research by Dr. Robert Drago and Carol Colbeck found that both men and women engage in productive and unproductive bias avoidance behaviors. Productive behaviors minimize family commitments to improve work performance, while unproductive behaviors produce the appearance of commitment without actual benefits.