Researchers discovered that hawkmoths harness the pentose phosphate pathway to create antioxidants, reducing muscle damage from high-intensity flight. This metabolic strategy allows them to process sugary diets without succumbing to oxidative stress.
Researchers warn that climate change will continue to shrink the Colorado River's flows, reducing water supplies for seven US Western states and Mexico. With temperatures projected to rise and precipitation uncertainty, future drought periods are likely, posing significant challenges for water managers.
A team of UA researchers used RFID tags to study bumblebee behavior, discovering that individual workers specialize on one food source per day. The results show vast variations in foraging activity among bees, with the most active foragers making 40 times more trips than less active workers.
A new study found that preschoolers who napped after learning new verbs had a better understanding of the words when tested 24 hours later. The study suggests that parents may want to consider maintaining regular naptimes for preschoolers, who are at an age where naps have a tendency to dwindle.
A new study assesses the ally behaviors of college athletes, revealing that female athletes are more likely to identify as LGBT allies. The research also highlights the crucial role that non-LGBT identified athletes play in creating a safe environment for LGBT student-athletes, which can positively impact team cohesion and performance.
Researchers have developed a high-precision chronology that sheds new light on the Maya collapse patterns, with both Classic and Preclassic collapses following similar trajectories.
Researchers at the University of Arizona have developed a program to help student-athletes improve their sleep habits. The study found that 68% of surveyed athletes reported poor sleep quality, with many getting less than seven hours of sleep per night.
Scientists have uncovered a continuous record of the Green Sahara period's rainfall patterns, revealing that the region was 10 times wetter than today. This discovery provides critical climate context for understanding human migration and lifestyle changes during this period.
Researchers found that the most successful phyla have a skeleton, live on land, and are parasites. This suggests that traits like having eyes or complex organs may not be primary drivers of species diversification. The study sheds light on why some groups have branched into many species while others remain relatively few.
Researchers have developed a method to measure temperature and voltage in systems far from equilibrium, which could lead to the creation of more efficient microelectronic devices. This breakthrough has significant implications for advancing technology, particularly in the development of smaller, faster electronic components.
Research reveals that endurance running alters brain structure and function in ways similar to complex tasks like playing a musical instrument. The study found greater functional connectivity in the brains of young adult cross country runners compared to sedentary individuals.
Researchers discover that walking heel-to-toe creates a mechanical advantage by extending the length of 'virtual legs,' making them longer than physical legs. This adaptation allows humans to be efficient walkers.
A study by the University of Arizona found that humor in ads can have both positive and negative effects on brand attitudes. Researchers explored the concept of
Astronomers have characterized the smallest known asteroid using Earth-based telescopes: Asteroid 2015 TC25 measures just 2 meters (6 feet) in diameter. The tiny space rock is bright, reflecting about 60% of the sunlight that falls on it.
A University of Arizona researcher is investigating how men perceive their role in preventing the spread of human papillomavirus (HPV). Her study found that most college-age males had heard of HPV but lacked knowledge about a vaccine that could prevent related cancers for both males and females. The researcher emphasizes the importance...
The Hadza people, an indigenous ethnic group in Tanzania, engage in significantly more physical activity than recommended by US government standards. Their lifestyle, characterized by regular hunting and gathering, is associated with extremely low risk of cardiovascular disease.
A study by University of Arizona researcher Nolan L. Cabrera found that college-age white men have a limited understanding of whiteness and racial privilege. The men often ignored or downplayed issues of race and racism, leading to a lack of critical self-awareness.
Research suggests Pluto's subsurface ocean could be responsible for its current location. The 'heart' region, Sputnik Planitia, may have accumulated ice that made the planet roll over, creating cracks and tensions in the crust. This process, called true polar wander, allows planets to reorient without changing their spin axis.
Research reveals that forest fire activity in California's Sierra Nevada has been driven by human land use rather than climate change. The study found four distinct periods of altered fire regimes corresponding to different types of human occupation and land use.
Research from the University of Arizona shows that anger can lead to impulsive and deviant behavior, while guilt promotes careful and deliberate processing. Angry employees are more likely to cheat and engage in unethical behavior, whereas guilty employees exhibit less deviance.
A study co-led by the University of Arizona found that a person's birth year can predict their odds of getting seriously ill in an outbreak of animal-origin influenza virus. This 'immunological imprinting' effect provides clues for developing a universal flu vaccine.
Researchers found that basketball players scored more points after being presented with death-related prompts, boosting their self-esteem and performance. Participants who thought about death performed 40% better in a second game and attempted more shots, suggesting a subconscious effort to regain a protective sense of self-esteem.
Researchers reconstructed the origins of the AIDS pandemic in unprecedented detail by recovering genetic material from 40-year-old serum samples. The study suggests that HIV emerged in New York City around 1970 and spread rapidly across North America, with the city serving as a critical hub for the epidemic.
Researchers found atypical burials with signs of violence, challenging traditional theories of witchcraft and blood feuds. The study suggests that violence was used to signal power and prestige, potentially leading to further conflict and biological fitness benefits.
The Colorado River Delta has benefited from recent engineered spring floods, with bird diversity increasing by 43% in restoration areas. Groundwater recharge has also improved, recharging the aquifer for irrigation and benefiting native plant species.
The University of Arizona's INSITE Center helps Fortaleza city planners use big data to understand bus delays and overcrowding. The team developed an online dashboard with real-time data on bus movements, passenger numbers, and weather conditions to inform decision-making.
A new study led by University of Arizona researcher Katharine Zeiders found that families experiencing ethnic discrimination and acculturation stress have a negative impact on children's behavior and academics. Children exhibited more behavioral problems and worse academic performance by age 5, according to the research.
A UA psychologist has developed a tabletop version of an interactive game that tests memory, which was later translated into an Android touchscreen-based battery of tests. The tool aims to measure memory in younger children and those with intellectual disabilities, addressing the lack of standardized tests in these populations.
A University of Arizona-led report reviews 125 reports on LGBTQ youth of color and highlights the lack of research on their normal developmental experiences. The study aims to fill this gap by emphasizing the importance of considering intersectionality between sexual orientation and race-ethnicity.
Researchers find evidence of two separate eruptions in the mid-13th and mid-16th centuries, and another in the 19th century, revealing a more violent history for the star system. The team uses NASA's Hubble Space Telescope images to track the movement of gas ejected by Eta Carinae.
Researchers found a correlation between Pacific sea level changes and global surface temperatures, with steeper tilts in the western Pacific linked to cooler temperatures. The study uses sea level data from 1993 to 2016 to estimate global surface temperature increases by the end of 2016.
A new report by an international team led by a University of Arizona geoscientist shows that Lake Tanganyika's fishery productivity has been declining since the 19th century due to global warming. The lake's algae, which serves as a food source for fish, has also decreased in abundance.
A new study combining future climate projections and tree-ring records reveals that North American forests will likely struggle to offset climate change. Forests, which currently absorb 25-30% of human-caused carbon dioxide emissions, are expected to grow slower in the face of warmer temperatures and increased greenhouse gas emissions.
Astronomers confirm 104 exoplanets outside our solar system using NASA's Kepler spacecraft on its K2 mission. The discoveries include a planetary system with four promising rocky planets orbiting the M dwarf star K2-72.
An international team of researchers is using big-data approach to plan effective conservation by modeling climate-change response of over 100,000 species. The project aims to identify regions and ecosystems that preserve biodiversity and critical ecosystems, reducing extinctions due to climate change.
Astronomers have discovered a planet in a unique position between three stars, experiencing constant daylight or triple sunrises and sunsets. The planet, HD 131399Ab, is one of the youngest exoplanets discovered to date and has a wide orbit within a multi-star system.
Researchers obtained detailed measurements of carbon exchange in a temperate deciduous forest, revealing that trees exhale less CO2 during the day than previously thought. The study confirmed that forest photosynthesis doesn't decline over the course of summer, contrary to conventional wisdom used in climate models.
Research shows that older adults experience age-related deficits in inhibition, leading to slower processing of visual information. This decline affects their ability to distinguish between familiar and novel objects, making it harder for them to perceive shapes and objects clearly.
The US spacecraft OSIRIS-REx has arrived at Kennedy Space Center in Florida, where it is undergoing final testing and fueling before its September launch. The mission aims to retrieve at least 60 grams of pristine asteroid surface material for study on Earth.
Researchers used the light echo technique to measure the distance from a young star to the inner edge of its surrounding protoplanetary disk. The study found the inner edge to be relatively thick and determined a distance of approximately 0.08 astronomical units, consistent with theoretical expectations.
Research by University of Arizona geoscientists finds post-wildfire erosion dominates landscape transformation in the US Intermountain West. Erosion rates increased 1,000 to 10,000 times in burned watersheds compared to unburned areas after severe wildfires.
A new study reveals that warmer spring temperatures have a significant impact on upper Colorado River flows, reducing them more than previously recognized. This finding has implications for drought management and climate modeling, which suggests that warming temperatures will exacerbate drought conditions in the Western US.
A new study reveals a 75% reduction in Caribbean hurricanes from 1645-1715, a time with little sunspot activity and cool temperatures. The research uses shipwrecks as a proxy for hurricane activity and provides an annual record of Caribbean hurricanes going back to 1500.
A new study by University of Arizona researchers found that romantic partners play a crucial role in shaping college students' financial behaviors. The study suggests that students model their financial habits after both their parents and romantic partners, with romantic partners having a stronger influence on attitudes towards finances.
Researchers discovered that Amazon forests' annual increase in photosynthesis is caused by synchronization of old leaf loss and new leaf growth, contradicting assumptions about constant canopy greenness. This finding will help improve predictions of forest responses to climate change.
Astronomers at the University of Arizona have taken the first direct, time-resolved images of an exoplanet using NASA's Hubble Space Telescope. The young exoplanet, 2M1207b, has a patchy cloud pattern and rotates twice as fast as Earth.
Climate models predict wet regions will become wetter and dry regions drier; western US aquifers expected to see slight-to-significant decreases in recharge as climate warms. The team's research integrates scientists' knowledge with scientific models to predict groundwater changes.
Researchers Christina Diaz and Jeremy E. Fiel found that socioeconomic disadvantage can mitigate the negative impact of young motherhood on educational attainment and future wages. Their study analyzed data from over 3,600 young women and found that better-off teenagers were more affected by early pregnancy.
CyVerse rebranded from iPlant Collaborative to emphasize its expanded mission across all life sciences. The platform provides data management and computation services for various scientific disciplines.
An international team of scientists discovered that fewer landslides occurred after the 2015 Nepal earthquake than initially thought. The research used satellite imaging to analyze the region and found no large floods from overflowing glacial lakes.