A new smartphone-based platform can quickly detect possible ear infections in children by analyzing reflected acoustic signals. The system uses a commercial phone's speakers and microphones to send sound into the ear canal, detecting middle ear fluid with high accuracy.
Researchers developed a system that automatically separates audio from different speakers in a crowded environment and compares these voices to the listener's brainwaves. This allows the voice of the speaker who is the center of the listener's attention to sound louder.
Researchers discovered a previously undescribed visual system in deep-sea fish, which uses multiple rod opsin photopigments to detect bioluminescence and potentially recognize predators or prey. This finding expands our understanding of how these organisms adapt to the dark environment of the deep sea.
Researchers discovered a previously unknown triterpene biosynthetic network in plant roots that shapes specific root microbiota. This network produces compounds with growth-promoting and antibiotic activities towards different microbiome taxa, supporting its role in cultivating favorable root communities.
Researchers identify predictable changes in global measles dynamics, enabling tailored vaccination and public health programs. Countries along the 'canonical path' experience declining disease incidence with increasing yearly variability, guiding informed control efforts.
A new study using FlashTag technology and single-cell RNA sequencing identified a core set of temporally patterned genes driving the shift in fate of neural progenitor cells. These molecular 'birthmarks' are transmitted from mother to daughter cells, influencing the types of neurons they will become.
A new study by Gregory Erhardt and colleagues found that popular ride-sharing companies like Uber and Lyft increased traffic congestion in San Francisco by 62% between 2010-2016. The analysis also revealed that average speeds decreased by 13%, leading to less reliable travel times.
Researchers have identified two fast-acting compounds that kill parasite-supporting bacteria after a single dose in mouse models of filarial diseases, potentially eradicating the condition. The standard-of-care treatment is limited by its duration and availability to pregnant women and children.
Researchers have developed a method to print complex vascular networks in biocompatible hydrogels using food dye #5, mimicking the architecture of biological tissues. This breakthrough has significant implications for tissue engineering and organ transplantation.
The Gulf killifish has developed adaptive resistance to pollutants in Galveston Bay, Texas, through hybridization with the Atlantic Killifish. This genetic exchange has enabled the species to persist in polluted waters, highlighting the role of inter-species connectivity in adaptation to environmental changes.
Researchers found that MSI intensity and mutational load significantly impact MMR-deficient tumors' response to PD-1 therapy. Higher mutational loads result in better responses to treatment.
Researchers controlled specific neurons in macaques' brains with images generated by artificial neural networks, demonstrating a new tool for neuroscientists to design experiments. This breakthrough uses current computer vision applications to predict and control visually evoked neural responses in primate brains.
Two clinical trials found that modulating the vasopressin hormone's biological pathway enhanced social functioning in adults and children with ASD. The studies showed improvements in social behavior, adaptive skills, and reduced anxiety symptoms in treated individuals.
A new study using genome re-sequencing analyzed 167 yam species and found that cultivated yam was domesticated from a forest species in the Niger River basin. This challenges previous hypotheses on African plant domestication, suggesting West Africa as a major cradle of crop domestication.
Researchers have identified several classes of adipocyte progenitor cells that give rise to fat tissue in mice and humans. The discovery provides insight into the complex mechanisms underlying fat tissue formation and highlights the importance of targeted approaches to prevent metabolic diseases.
Researchers have created a new method of ice removal using materials designed with low interfacial toughness, reducing the amount of force required for detachment. This approach can be applied to large surfaces like wind-turbine blades and airplane wings, minimizing catastrophic failure.
Global ocean wind speeds and wave heights have increased slightly over the last three decades, according to a new study. The analysis of satellite data spanning thirty years confirms small but significant increases in extreme conditions, particularly in the Southern Ocean.
Researchers found that accounting for the grounding line's interaction with the solid earth reveals a delayed ice sheet collapse, slowing glacier retreat at major ice structures like Thwaites Glacier. This reduces sea level rise projections by over 25%. Fine-scale feedbacks improve predictions and guide future research.
China's regional pollution policies are causing unintended spillover effects, increasing air and water pollution in neighboring provinces. The models project a significant increase in pollutants, carbon dioxide emissions, and water consumption outside the capital cities.
Researchers developed an AI-powered platform that rapidly diagnoses genetic diseases in critically ill infants, matching expert interpretation in 95 cases. The platform correctly diagnosed three of seven ICU patients with 100% sensitivity and precision, affecting treatment outcomes.
Researchers introduce trace amounts of samarium into PMN-PT crystals, significantly enhancing their piezoelectric properties. The results show nearly double the performance of traditional materials.
A new study catalogs nearly 1.8 million tiny tremors in Southern California, filling gaps in the earthquake record and shedding light on geophysical processes. The analysis reveals that about 495 earthquakes occur each day in the region, with most being small and imperceptible.
Researchers improved mixed tin-lead perovskite solar cells using guanidiinium thocyanate, enhancing carrier lifetimes and optoelectronic properties. This led to all-perovskite tandem solar cells achieving efficiencies of up to 25% with over 88% efficiency maintained after 100 hours of continuous operation.
Researchers have isolated single H2O molecules using cryogenic ion spectroscopy and observed individual frequencies of related OH groups. The vibrational frequencies demonstrate site-dependent behavior and reveal that bound OH companions account for lower energy bands in the spectrum.
Researchers at A??kl? Höyük found high concentrations of sodium, chlorine, and nitrate salts in midden soil layers, indicating early animal management. The discovery provides a new approach to studying animal domestication at dry sites without other evidence.
Certain bacteriophages exacerbate bacterial infections in cystic fibrosis patients, particularly with Pseudomonas aeruginosa. These phage-carrying bacteria are more resistant to standard antibiotics, highlighting potential therapeutic targets.
Researchers propose introducing strategic interventions to address climate change by identifying sensitive intervention points in socio-economic systems. Such interventions could amplify into radical change, potentially averting a climate catastrophe.
Researchers found that ketamine restores dendritic spines in the prefrontal cortex of mice with depression-like behavior. Healthy dendritic spines are crucial for long-term antidepressant effects, suggesting interventions to enhance their survival may be helpful in sustaining ketamine's benefits.
The NASA Twins Study found no significant health differences for astronaut Scott Kelly after spending nearly a year in orbit. However, changes were observed in his DNA methylation and gene expression, particularly related to the immune system, which may persist after his return to Earth.
A new study finds that abundant herbivores diminish plants' attractiveness to pollinators but increase energy spent on producing offspring through autonomous self-pollination. Plants rapidly evolve defensive traits, like toxic compounds, to ward off herbivores while maintaining floral displays attractive to pollinators.
The study found a shift towards arbuscular mycorrhizal (AM) trees in the eastern US due to climate change, increased nitrogen deposition, and fire suppression. This change can accelerate nutrient cycling, potentially affecting carbon storage in North American forests.
A genetic study of an outbreak of Enterococcus faecalis revealed how the organism became resistant to new antibiotics and adapted to infect human blood. The research identified multiple mutations that enabled the bacteria to resist host immune systems and antibiotics.
A small peptide produced in predatory nematodes' skin prevents them from eating their kin, while they feed on close relatives. The discovery reveals a self-recognition system in nematodes that discriminates between self and other organisms.
A new study reveals the first intact planetary body orbiting a white dwarf star, with a densely packed planetesimal no larger than 600 kilometers in diameter. The object's high density suggests it may be the remnant core of a planet stripped away by tidal forces.
Research on O'ahu reveals native plants rely heavily on invasive bird species for seed dispersal, forming dynamic networks similar to native communities. However, these birds also spread non-native plant seeds more frequently.
Researchers found that noncoding DNA regions play a crucial role in the evolution of flightlessness in disparate bird species. The study's results contradict previous findings on protein-coding DNA changes and suggest rapid, convergent adaptations across taxa.
A neuroimaging study identified unique brain activity patterns that predict poorer responses to talk therapy in patients with PTSD. Patients with impaired verbal memory and VAN function had poorer outcomes after psychotherapy, while those with intact verbal memory or normal VAN function were more responsive.
Living near protected areas designated by IUCN can have a positive impact on children's wealth levels, reducing poverty by 17% compared to those far away. Children also experience improved growth outcomes, with higher height-for-age scores and lower risk of stunted growth.
The AAAS IF/THEN Ambassadors program connects U.S.-based women in STEM careers with middle school girls, promoting diversity and inclusion. The initiative highlights the variety of STEM professions available, drawing from a coalition of science, education, and entertainment organizations.
Researchers have developed a new method to speed up stomatal response in plants, improving photosynthetic efficiency and water use. The optogenetically enhanced plants produce more biomass than expected under fluctuating light conditions.
A new study in the Serengeti-Mara ecosystem highlights how human activity near protected areas affects wildlife and ecosystem function. The results show that human pressure has caused wildlife to migrate to the core of the park, resulting in changes to fire regimes, grazing patterns, and increased vulnerability to droughts.
The study reveals Bd as one of the most destructive invasive species, causing at least 501 amphibian species decline. Despite this, some species show recovery and host resistance.
The Cassini spacecraft gathered data on five small moons close to Saturn's rings, revealing no volatiles other than water ice. The moons' geology was shaped by complex processes, including tidal stresses, with optical properties influenced by contamination from the main rings and ring material.
Researchers found that Mars' rivers were twice as wide as those on Earth and had intense flow persisting until one billion years ago. This suggests a global, long-lived phenomenon of climate-driven precipitation during low-atmosphere conditions on Mars.
The American Association for the Advancement of Science and EducationCounsel are updating a handbook to help colleges navigate complex legal landscape and advance student and faculty diversity in STEM fields. The new guidance aims to prepare institutions for future developments while maintaining commitment to diversity efforts.
A team of researchers has developed self-sustaining, bioengineered blood vessels that can safely integrate into the native circulatory systems of patients. The vessels, currently being tested in phase 3 clinical trials, offer a promising alternative to replacing damaged vessels with those from human donors or animals.
Proposed EPA changes to causality framework, promoted by Tony Cox, raise concerns about the agency's ability to protect public health. The new approach requires direct evidence of causation from epidemiological studies, which is unattainable with observational data.
Researchers have unearthed a treasure trove of Cambrian secrets along the Danshui River in China, containing over 50 previously undescribed animal species. The Qingjiang biota fossil assemblage rivals that of the Burgess Shale and Chengjiang localities in terms of quality and taxonomic diversity.
A study found that high-fructose corn syrup consumption enhances tumor growth in genetically predisposed mice with intestinal adenomas. The researchers discovered that HFCS leads to dramatic increases in tumor size and grade through altered metabolism, independent of obesity.
A study found that administering propofol to humans immediately after reactivating a traumatic memory weakened its emotional strength. The results suggest a potential, noninvasive approach for treating anxiety and stress-related disorders.