A global study of over 1,000 pollination experiments found that high plant diversity can lead to reduced pollination and reproductive success. This reduction in fruit and seed production may push vulnerable species towards extinction.
Researchers have re-dated two Neandertals from Vindija Cave, Croatia to between 32,000 and 33,000 years ago. This new age range sheds light on the chronological overlap between Neandertals and modern humans in Europe.
Research suggests adult children's ability to predict their parents' wishes is influenced by family dynamics and interaction style. Children who perceive closer relationships are often better at guessing parental preferences, while autonomy and personal growth are poorly predicted decisions.
Researchers at Washington University in St. Louis have developed a new technique to image brain deformation after impact, using magnetic resonance imaging (MRI). The study shows that the brain tries to pull away from attachments, leading to significant deformation of the front of the brain.
Researchers found that people with early dementia tend to rely more on familiar information pathways due to poor attentional control. This can lead to struggles with everyday tasks that require processing multiple pieces of information.
Researchers at Washington University in St. Louis report that Central American farmers have preserved genetic variation in the jocote by growing it locally for family consumption. This practice, despite large-scale deforestation, has helped maintain diversity in the species through multiple domestications.
Researchers found that human subjects learned different levels of a video game in just 20 minutes, adapting to varying environmental difficulties. The study showed that people can rapidly reshape their learning process to best learn new movements.
Researchers found that fish in ponds increase pollination of St. John's wort due to the decline of dragonfly populations, which then shift their prey to bees and flowers, fostering a mutually beneficial relationship. This study highlights the impact of species interactions on ecosystem dynamics.
A team of researchers used proteomics to identify multiple blood proteins that adsorb to the surfaces of medical devices, including serum amyloid P. This discovery sheds new light on the biocompatibility of materials and their potential impact on patient health.
Researchers have developed a new method to detect Earth-like planets by analyzing the chemistry of silicate vapor and steam-rich atmospheres. The approach uses thermochemical equilibrium calculations to identify the presence of silicon monoxide gas, which is expected to be distinct at high temperatures during the planet's formation.
The Open Network Laboratory (ONL) provides a platform for researchers to develop, test, and demonstrate improvements in networking environments. With its high-performance routers and extensibility features, the ONL enables users to create new communication services and evaluate innovative ideas in a realistic setting.
Researchers have found evidence of past water on Mars at the Gusev crater, indicating a hydrologic system that deposited magnesium sulfate and formed highly oxidized coatings. The study used data from the Spirit rover's trenches to detect high levels of magnesium sulfate and showed a tight correlation between magnesium and sulfur.
Researchers used chondrites to calculate early Earth's atmosphere, finding a reducing atmosphere with methane and ammonia. This contradicts the Miller-Urey experiment, which relied on an oxidizing atmosphere.
Researchers found early humans started using supportive footwear around 26,000 years ago to reduce toe bone strength. This change was likely caused by the introduction of protective footwear, which reduced the roll of the little toes and weakened them over time.
The new program predicts both protein sequences and untranslated regions, revealing novel insights into gene regulation. By identifying correct transcription start sites and spliced untranslated regions, scientists can better understand gene function and regulation.
A microbial fuel cell has been created by Washington University researchers that generates electricity and treats wastewater, a process with potential to power 900 American homes. The device uses a carbon-based foam and bacteria to produce electricity from organic matter in wastewater.
A new study from Washington University in St. Louis shows that people with schizophrenia can remember things just as well as healthy subjects with proper cues and memory aids. The research suggests a new way to understand the cognitive problems underlying schizophrenia, offering hope for more effective cognitive rehabilitation programs.
A study by Washington University postdoctoral fellow Alan Castel found that expert video game players exhibit a 20% reduction in response times compared to non-players. This suggests that expertise is acquired through practice rather than being an innate ability.
A team of engineers has successfully removed bioaerosols from a hospital therapy pool using a new generation of hybrid filters. The filters reduced concentrations of culturable bacteria by up to 80% and total bacteria by up to 76%, significantly improving pool safety and reducing illness risks.
The Mladec assemblage is the oldest directly dated substantial collection of modern human remains in Europe, dating back approximately 31,000 years. The fossils confirm that early modern humans emerged in Central Europe during the Aurignacian period and provide valuable insights into their ancestry.
Researchers have developed a new map of life on Earth, which could be used to identify the potential for life on Mars. The map was created by tracing the evolutionary history of microorganisms using genetic sequencing data and shows that ancient microbes inhabited specific habitats, including hydrothermal systems.
A new software program, TWINSCAN, has been developed to predict genetic sequences in nematodes with high accuracy. The program predicts 60% of the genes in the C. elegans genome exactly, right up to the last amino acid, surpassing previous predictions.
Research reveals that female mosquitofish choose males based on gonopodium size, which is linked to speed and predator avoidance. In contrast, larger genitalia may be favored in predator-free environments where the advantage outweighs the trade-off.
A Neandertal femur found in France suggests that the transition from Middle Paleolithic to Upper Paleolithic marked a shift to greater mobility among humans. Close competition for food and space persisted with hyenas during this period, indicating a more complex human landscape.
Shelly Sakiyama-Elbert and her team have screened a large number of molecules to find peptide sequences with varying affinity for heparin, a sugar that binds nerve repair drugs. They aim to develop affinity-based drug delivery systems to stimulate tissue regeneration for conditions like nerve damage.
Washington University will receive funding to develop a mobile science classroom that provides interactive experiences and exhibits for elementary school students. The program aims to improve science education in underrepresented public schools, aligning with Missouri standards.
A recent study by Washington University researchers used a molecular survey to detect Mycobacterium avium in the lungs of nine lifeguards who developed hypersensitivity pneumonitis after exposure to pool water. The bacterium, known for its resistance to disinfection, was found at high levels in air samples taken near the pool.
A study by Washington University researchers found that husbands' education levels have a greater impact on migration patterns than wives', with power couples more likely to move to large cities. The study suggests that women can expect ongoing disparities in professional salaries, as the continued presence of trailing wives contribute...
Researchers at Washington University in St. Louis have successfully sequenced a fossil human protein from over 40,000 years ago, providing valuable information on human evolution and diet. The analysis reveals that the Neanderthal sequence is identical to modern humans', suggesting a shared dietary history.
The study reveals that VIP peptide is essential for synchronizing the brain's biological clock, which regulates daily rhythms in behavior and physiology. Mice lacking VIP suffered from internal desynchrony, while adding VIP restored synchronicity.
A new study suggests that the anterior cingulate cortex (ACC) functions as an early warning system to help recognize and avoid high-risk situations. The ACC learns to warn us of potential mistakes before difficult decisions must be made, allowing for more careful behavior.
A fourth kind of RNA polymerase, Pol IV, has been found in plants, playing a crucial role in maintaining genome integrity. It helps direct DNA methylation to specific sequences, ensuring proper gene expression and preventing developmental problems. The discovery sheds light on the unique features of plant biology.
Researchers reconstructed climatic conditions in western Egypt 130,000 years ago, finding a humid event that supported human presence and wildlife. The study provides new insights into the dispersal of humans out of Africa and the impact of climate change on ancient societies.
Researchers have uncovered a new hypothesis on the origins of cyanobacteria, which gave rise to chloroplasts in plant cells. The study suggests these bacteria first emerged in freshwater systems and gradually adapted to brackish and marine environments over time.
Children from traditional nuclear families achieve better in school than stepchildren and half-siblings, despite being raised with their two biological parents. The researchers found that family structure is just one factor influencing educational outcomes.
A new math model of heart cells has identified a novel calcium pathway that regulates cardiac electrical activity and is linked to arrhythmia research. The study, published in Circulation, provides a valuable tool for understanding the relationship between calcium handling and cardiac arrhythmias.
Researchers at Washington University have discovered that organic carbon and amorphous silicates in interstellar grains embedded within interplanetary dust particles are the carriers of the astronomical 2175 Å extinction line. This finding solves a 40-year-old mystery, providing evidence for the origins of this feature.
A new method has been developed to remove MTBE, a carcinogenic pollutant, from water using a titanium dioxide catalyst. The catalyst causes MTBE to react with dissolved oxygen, producing harmless carbon dioxide.
The Washington University CubeSat, Bandit, is a small satellite that can dock with a medicine ball-sized mothership, making it ideal for inspection tasks. Developed by students and faculty, the satellite has the potential to disrupt spacecraft design with its innovative technology.
Researchers studying Acetobacter bacteria have discovered enzymes that resist acid, shedding light on potential treatments for diseases caused by misfolded proteins. The findings could lead to more stable proteins and environmentally friendly industrial processes.
Researchers analyzed a sample from Gabon's natural nuclear chain reaction site and found how the reactor operated in a 30-minute cycle. The study also revealed the role of alumophosphate as the system's waste absorber, providing insights into safer nuclear reactor operations.
Researchers at Washington University in St. Louis found that genetically distinct populations of brown lizards (Anolis sagrei) introduced to five countries can be traced back to Florida. The study, which analyzed DNA from over 600 individuals, suggests that the Sunshine State is a key site for species migration.
Researchers have developed a new system to improve heart defibrillation by targeting rogue electrical waves in arrhythmia. The device produces milder shocks, reducing the amount of energy required, which could lead to smaller, longer-lasting devices that spare patients from frequent replacements.
A team of researchers, led by Himadri Pakrasi, aims to model the networks that cyanobacteria, Arabidopsis, and Physcomitrella use to cope with radicals. This study has potential applications for human biology and could lead to new therapies.
Excess nitrogen and phosphorus from farming activities cause eutrophication, creating a food web that imperils frogs. A parasite, Ribeiroia ondatrae, infects tadpoles, causing deformities.
Researchers at Washington University in St. Louis have created a detailed map of the Comstock Lode, a 14-million-year-old gold and silver ore deposit. The map uses mathematical techniques to visualize patterns of oxygen isotope exchange between water and rock, providing insights into the geological processes that formed the ore district.
A biologist studied the tree hole ecosystem and found that changing factors such as predation, resources, and disturbance alters community composition. The results show that certain species are tolerant of predators, disturbances, or competition, allowing them to coexist in different spatial scales.
Computer models show Io's volcanic eruptions vaporize sodium, potassium, silicon, and iron gases into its atmosphere. Researchers found single-atom and molecular forms of these elements, which could lead to unusual gas formations.
A breakthrough in brain-machine interface technique uses electrocorticographic (ECoG) activity to record brain surface signals, enabling humans to control computers with their minds. The study achieved high accuracy rates and promises potential applications in prosthetic limb control for individuals with disabilities.
Researchers have developed a novel method to create well-defined nanostructured carbons using polyacrylonitrile (PAN) as a precursor. The technique provides significant advantages over existing methods and has potential applications in energy storage/conversion devices and display technologies.