A meta-analytic study of existing research found that frequent quizzes help students better grasp classroom material, leading to improved academic performance. The study discovered a strong link between quizzing and student success, with students who took quizzes performing better on midterm and final exams.
A $60,000 NSF grant allows Iowa State University researchers to investigate landlord decision-making contributing to rental housing instability. The team will conduct surveys and interviews with landlords, property managers, local government officials, and policy stakeholders in Cleveland, Minneapolis, and Lexington.
The research project aims to share information and strategies with communities showing stress or decline to improve quality of life. The team will develop a Community Information Ecosystem to collect data on residents' perceptions of quality of life, which has remained stable or improved in shrinking small towns.
A recent analysis of tagged monarch butterflies' migration from the US to Mexico found no decline in migration success and contradicts the theory that increased mortality during migration is driving population decline. The study highlights the importance of creating new habitat for milkweed, a crucial plant for monarchs' survival.
Researchers from Iowa State University have discovered that two seemingly unrelated responses in corn plants work together to mitigate damage caused by heat stress. The unfolded protein response and heat shock response, which operate in different parts of plant cells, collaborate to protect the crop from stress.
Researchers at Iowa State University have developed a novel technique to replicate natural surfaces, including rose petals, using metallic materials. The process, called BIOMAP, uses microscale particles of liquid metal to create precise replicas without heat or pressure.
Biomedical scientists have discovered that diethylcarbamazine directly targets parasitic worms with a temporary paralysis, allowing the host's body to flush out the parasites. This breakthrough could lead to better predictability of resistance development and more effective treatment outcomes for patients.
Scientists have deciphered the ancient genome of the tuatara, a reptile native to New Zealand, revealing patterns that shed light on vertebrate evolution and genomic structure. The study's findings confirm the evolutionary position of the tuatara and provide insights into human genomes.
A recent study published in the Journal of Planning Education and Research found that demolishing dilapidated houses can lead to nearby property owners improving their own homes. The study examined changes to house conditions over time and found that properties near demolitions showed fewer signs of deterioration.
A new academic paper examines the history of anti-Asian hate crimes during health crises, revealing a long-standing pattern of xenophobia and discrimination. The study highlights how COVID-19 has furthered this historical trend, with Asian Americans facing verbal harassment, physical violence, and unwarranted suspicion.
Researchers used computational models to study the effects of thinner biological tissues on transcatheter aortic valve replacement. The findings indicate that thinner tissues can lead to high levels of 'flutter energy', causing blood damage and accelerating leaflet deterioration.
Researchers analyzed how ovarian function in mice responded to various levels of glyphosate exposure and found increased ovarian weight and follicle number at highest exposure levels. However, the study did not uncover evidence that glyphosate affects the healthy functioning of ovaries.
A new study by Iowa State University researchers reveals that individuals tend to select retirement funds ending in zero, leading to an incompatible level of risk and potentially lower total wealth at retirement. The findings suggest that demographic factors such as age, income, and education can influence the likelihood of this 'zero'...
Researchers at Iowa State University studied the impact of microbubbles on brain cells during traumatic brain injuries. They found that cavitation causes cell shrinkage, surface roughening, and increased inflammatory genes.
Graphene sensors printed with aerosol jet technology can detect histamine in tuna broth down to 3.41 parts per million, exceeding US FDA guidelines for food safety. The technology also has potential applications in environmental toxin detection, wearable health monitoring, and disease diagnostics.
A recent study from Iowa State University has uncovered a link between liver and heart disease, with researchers finding that liver dysfunction can contribute to the deterioration of the heart. The study, published in Nature Communications, focuses on the role of peroxisomes in regulating lipid metabolic processes and detoxification.
A recent study analyzed datasets on rice plants across Asia to predict traits based on genetics and environment. The researchers found patterns in temperature profiles and geographic distribution of genetic haplotypes, which suggest preferential adaptation to different temperature zones.
Research found substituting prolonged sedentary time with sleep was associated with lower stress and improved mood. Light physical activity, such as walking around the home office, also provided benefits for up to a year, including improved mood and lower BMI.
Researchers have discovered second harmonic light emissions in superconductors, breaking conventional laws of physics. This finding could lead to breakthroughs in high-speed quantum computing and communication technologies.
Researchers at Iowa State University have developed a new type of solar cell that can withstand high temperatures while maintaining efficiency. The breakthrough uses a hybrid organic-inorganic perovskite material that is stable at temperatures above 200°F and has a photoconversion efficiency of 11.8%.
A visitor's garden at an Iowa Correctional Institution for Women is strengthening connections between incarcerated women and their children, with 90% of visitors saying it made their visit better. The garden provides a child-friendly environment, improved affective experience, and home-like visiting space.
Scientists have created an equation to predict glacier movement over soft beds, which could improve forecasts of glacier speed and sea-level rise. The new 'slip law' accounts for the motion of ice resting on deformable ground underneath fast-moving parts of ice sheets.
Iowa State University engineers develop a closed-form solution for the inverse chirp z-transform, enabling efficient computation on the unit circle and lifting restrictions of existing algorithms. The algorithm achieves high accuracy with 64-bit floating-point numbers and operates in O(n log n) time.
Geologists have determined that the early Earth was a 'water world' with submerged continents based on oxygen isotope data from ancient ocean crust in Australia. This finding has significant implications for the origin of life on Earth and its possible existence elsewhere.
Chemists at Iowa State University have developed a technique to analyze the degradation of unsaturated fatty oils in fingerprints, potentially allowing them to be used as a tool to determine their age. The method uses mass spectrometry imaging and has shown promising results, with individual differences in fingerprint aging detected.
Researchers at Iowa State University have created liquid metal alloys that can change their surface structure in response to heat, allowing for the development of 'smart' alloy systems. This technology could inspire design of tunable surface patterns and their composition with temperature for applications such as sensing and catalysis.
Scientists at Iowa State University restored much of the cardiac function in middle-aged flies, which experience many of the same heart maladies as middle-aged humans. By boosting a key genetic pathway called mTORC2, researchers almost fully restored heart function, showing promise for treating human heart disease.
Scientists developed nanoscale sensors to image and measure stresses and strains on materials under high pressures. The technology allows for a comprehensive measurement of six different stresses, enabling the discovery of new phases of matter with technological applications.
A recent study on sorghum explores the complex relationship between humans, crops, and the environment during domestication. Researchers found that birds with a taste for sorghum seeds may have driven farmers to select varieties with condensed tannins, which provide a defense mechanism against bird damage.
The US is experiencing several simultaneous opioid epidemics, including prescription drug, heroin, synthetic opioids, and a syndemic in counties where the crisis first erupted. These distinct challenges require varied policy responses.
A new study by Iowa State University researchers found that the Trump administration's policies in Africa have negative implications for economic growth. The study reveals a 'selective delinking' approach that disengages the US from various relations, including aid, trade, and investment.
Astronomers used TESS data to study two red-giant stars, one of which has a planet that shouldn't have survived its host star's expansion. The team found the planet's orbit may have been disrupted by the star's tidal forces, leading to an interesting case of planetary evolution.
A study published in Addictive Behaviors Reports found that money spent on beer ads strongly predicts brand awareness and usage among teens. Researchers discovered cognitive strategies used by advertisers appeal to youth, leading to increased consumption and heavy drinking.
A new study from Iowa State University found that nearly 1 in 6 adults experience difficulty falling or staying asleep, with those reporting healthy sleep length struggling the most. The research suggests that targeting factors influencing initiation and maintenance of sleep could be key to improving sleep health.
A multi-state experiment will investigate the impact of planting cover crops on plant disease, pests, and weeds. Alison Robertson's research suggests terminating rye cover crops can increase corn seedling disease risk if planted too quickly.
New research at Iowa State University reveals that Title IX investigators are using untested techniques in interviews, which may hinder investigations. The study suggests the use of science-based interviewing strategies to improve the effectiveness of investigative interviews.
Researchers at Iowa State University have developed a new algorithm to solve the inverse chirp z-transform (ICZT), a problem that had gone unsolved for 50 years. The algorithm has been tested for numerical accuracy and shows promising results in terms of computational complexity.
A study published in the Journal of Family Communication reveals that mothers' negative experiences with others can lead to anxiety, depression, and isolation. The research highlights the importance of common ground and shared interests in building positive relationships among mothers.
A new study from Iowa State University highlights the need to update agricultural drainage infrastructure, which can benefit crop production and the environment. The research recommends installing higher capacity pipes and implementing long-term conservation practices, such as denitrification wetlands, bioreactors, and saturated buffers.
Iowa State University researcher Marcus Credé found nearly all power posing studies were poorly designed and failed to compare power poses to normal poses. Only four studies met the criteria, showing that feelings of power diminished when compared to neutral pose.
Researchers at Iowa State University have made three groundbreaking discoveries about non-equilibrium quantum phase discovery via non-thermal ultrafast quench near quantum critical points. These findings could lead to the development of new technologies such as optical computing, novel sensors and high-speed communication capabilities.
A new study by Iowa State University researcher Daniel Kuhlmann found that people are more likely to be dissatisfied with their homes if they are smaller than their neighbors'. This phenomenon, known as positional housing concerns, suggests that people's perceptions of their own homes are influenced by the size of their neighbors' houses.
A new study from Iowa State University analyzed decades of data on painted turtle populations and found a wide variation in temperature sensitivity within local populations, defying theoretical expectations. The findings suggest that temperature-dependent sex determination may be more resilient to changes in temperature than previously...
A recent study analyzing over 10,000 scientific studies found that species are not adapting fast enough to cope with climate change. The research team identified phenological traits, such as shifting hibernation and reproduction dates, in temperate regions, where changes occurred more commonly.
Engineers use undercooled metal technology to create conductive lines and traces on various materials, including paper, concrete, and biological tissues. The technology enables heat-free fabrication of metallic interconnects and traces without damaging the base material.
Research reveals that African American families' cultural acceptance of larger body size and optimistic bias can limit their perceived risk for Type 2 diabetes. The study found that open communication within families and with medical professionals is essential for effective management of the disease. Parents who openly discuss their di...
A recent study published in Proceedings of the National Academy of Sciences shows that mosquitoes employ a multi-stage immune response to combat malaria parasites, involving a complement-like pathway and phenoloxidases. This understanding could lead to opportunities to eliminate malaria parasites in the mosquito, reducing human cases.
Research from Iowa State University found that playing Minecraft fosters creative freedom and increases creativity. Players given the freedom to play Minecraft without instruction were most creative, suggesting that autonomy is crucial for unlocking creative potential.
Researchers at Iowa State University have demonstrated the ability to control macroscopic supercurrents using terahertz light, a breakthrough that could lead to faster and more efficient quantum computers. This discovery opens up new avenues for electromagnetic design of emergent materials properties and collective coherent oscillations.
Research found that superoxide dismutase improves cognition by fighting oxidative damage but loses effectiveness when tau proteins increase, suggesting a losing battle against Alzheimer's disease. Increasing SOD1 production may delay progression of the disease, according to Iowa State University researchers.