Researchers have discovered a key protein structure in the germ cells of male mice that causes deformations in sperm flagellum leading to infertility. The study used ultrastructure expansion microscopy to visualize the centriole, a tiny cylindrical structure critical for sperm movement.
When their nest is disturbed, bumblebees respond by preparing to defend the nest, searching for the threat, warning potential intruders to stay away, and finally recovering from stress. They maintain heightened vigilance for around 4 minutes after the disturbance.
Research finds that sorbitol, a common sugar substitute, can induce similar effects on the liver as fructose, leading to steatotic liver disease. The study also shows that gut bacteria play a crucial role in clearing sorbitol, and that excessive consumption can overwhelm them.
New research suggests a common childhood virus can trigger DNA damage leading to bladder cancer. Laboratory studies using human tissue samples found that the virus's antiviral defences cause collateral damage in cells' own DNA.
A Nepalese study of 583 adolescents found that authoritative parenting is associated with improved mental health and self-esteem, while authoritarian parenting is linked to depression and lower self-esteem. Permissive parenting styles are also connected to increased stress levels among adolescents.
Researchers found that words with phonetically pleasing sound patterns are more memorable due to their aesthetic appeal. The study was supported by a grant from the Austrian Academy of Sciences and the Austrian Science Fund.
A recent study by UCLA Health investigators found that mental health conditions significantly raise the likelihood of developing liver cancer among US veterans living with cirrhosis and hepatitis C. The study suggests that these disorders limit access to hepatitis C care, reducing the chance of a cure.
Researchers discovered that the nuclear pore complex is a dynamic system with a ring-shaped scaffold surrounded by flexible FG domains. The complex's architecture and crowded environment work together to selectably allow transport receptors and their cargo to pass through.
A study found that adults desiring children prefer older faces over younger ones, regardless of wealth or perceived parenting skills. The researchers explored factors such as age and cultural differences to explain this phenomenon.
After cannabis sales became legal, rates of cannabis use and cannabis-related disorders increased significantly among adolescents aged 12 to 17 presenting for psychiatric emergencies. The study found a fourfold increase in cannabis use and a similar rise in cannabis-related disorders among this age group.
A cross-sectional study found that adolescent girls experiencing heavy menstruation and following a meat-restricted diet have nearly 14 times higher odds of iron deficiency. This risk is significantly higher than those with normal menstruation who consume an omnivorous diet.
A new study assesses various wall and floor types for their climate impact and acoustic performance, finding that timber outperforms standard steel studs in terms of climate friendliness. The research also highlights the importance of considering both acoustic comfort and environmental sustainability when designing buildings.
Scientists have developed an experimental drug called TY1 that repairs DNA damage and promotes healing in damaged tissue. The breakthrough could lead to new treatments for heart attacks, autoimmune diseases, and other conditions.
A randomized, controlled pilot study found that preloading Instacart online grocery carts with healthy ingredients resulted in families making significantly more nutritious purchases compared to a group receiving only recipes. Families made healthier choices easier and more automatic.
Research finds certain psychological disorders are associated with positive attributes like heightened creativity, empathy and resilience. People with mental illnesses may grow and develop unique strengths despite their struggles.
A researcher warns that AI can distort our perceptions of death and existence by blurring presence and absence. He suggests that embracing selfless selves, or interconnectedness, can help us accept impermanence and the inevitability of death.
Scientists have developed a breakthrough method to convert hazardous acid mine drainage into ferric chloride, a widely used water treatment chemical. Laboratory tests achieved removal rates of over 99% for pollutants from river water.
A large clinical trial published in JAMA Surgery shows that prehabilitation can reduce disability after surgery in older adults with frailty, provided they fully participate in the program. Participants who completed at least 75% of exercises had significantly lower levels of disability after surgery.
A Bar-Ilan University study suggests that incorporating more walking into daily commutes can improve health without adding extra travel time. By increasing the walking distance thresholds in trip planning, researchers found that most commuters could benefit from an average of nine minutes of walking per day.
Researchers found that a treatment of extracellular vesicles can slow and even reverse certain aspects of normal age-related memory decline. The study showed that the vesicles helped maintain memory skills and improved communication between brain areas over a period of two years.
A growing trend of antipsychotic medication prescription increases in older U.S. adults, with long-term care pharmacies being a primary source. Non-psychiatrist prescribers contribute to the trend, highlighting concerns over medication accessibility and oversight.
Researchers discovered breast cancer modifies lymphatic vessels to facilitate its spread. A specific protein, Matrix Gla protein (MPG), enables cancer cells to bind to lymphatic vessels, supporting metastasis. Understanding this process could lead to targeted therapies and improved patient outcomes.
A new study reveals regional vulnerability of plant-pollinator networks to climate change, emphasizing the need for tailored conservation approaches. Tailored strategies can enhance biodiversity protection in tropical regions, but may offer minimal benefit in temperate zones.
The 106th Annual Meeting of the American Meteorological Society will focus on the intersection of technology and human decision-making in weather, water, and climate sciences. The meeting will feature keynote presentations, Presidential Sessions, and named symposia highlighting key Earth science topics.
Researchers at KTH Royal Institute of Technology have developed a new catalyst that enables faster and more sustainable production of hydrogen gas. The breakthrough, reported in Nature Chemistry, uses a unique molecular scaffold to position iron and nickel atoms for optimal performance.
Physicists discovered connections between Ramanujan's formulae for pi and fundamental physics theories like conformal field theories. The formulas, developed in the early 20th century, yield efficient calculations for phenomena like turbulence and black holes.
The EBRAINS Summit 2025 will bring together experts to assess how neuroscience can drive medical progress, digital innovation, and responsible data use. Preliminary results from the EPINOV clinical trial, integrating virtual brain technology for epilepsy surgery planning, will be presented.
The Frontiers Science House is a new meeting venue at Davos that connects breakthrough science to government, business executives, and philanthropists. The house will host over 40 sessions on topics such as precision healthcare, planetary restoration, and digital intelligence.
A symbiotic fungus helps the ship-timber beetle survive by accumulating nutrients and producing antimicrobial compounds that inhibit competing fungi. The fungus also adapts to its acidic environment by acidifying it with acetic acid, thriving at low pH levels.
Researchers at eight German institutions will benefit from the expanded agreement, which removes financial barriers to open access publishing in JMIR's portfolio of over 30 Gold Open Access journals. The partnership demonstrates a commitment to open science and bibliodiversity.
A newly proposed Chinese-style STEM approach emphasizes engineering-based learning, hands-on practice, and digital empowerment while integrating cultural values and national priorities. The framework aims to create coherent and authentic STEM learning experiences for students across China.
A new study reveals that changes to EU chemicals legislation are often overlooked in the pharmaceutical sector, despite their potential impact on human health and environmental sustainability. The analysis highlights the need for closer cooperation between regulatory agencies to address the complex interactions between different sectors.
Researchers from the University of Missouri-Columbia have identified several genes that may be potential therapeutic targets for Chronic Kidney Disease (CKD) by regulating gene activity. These genes are involved in the signs of kidney damage, including fibrosis and inflammation.
A recent Nature study reveals that complex life developed significantly earlier than previously thought, around 2.9 billion years ago. This challenges existing theories and proposes a new scenario for eukaryogenesis, where the nucleus and other internal structures evolved before mitochondria.
A pioneering study by UPF found that lower-class young people, especially boys, receive twice as many ads about risky financial products as their upper-class peers. The study also reveals marked gender differences in online advertising, with girls receiving more fashion and beauty ads than boys.
Researchers analyzed DNA of 28 ancient southern Africans, finding 490 modern human-specific genetic variants, including immune system and kidney function genes. These adaptations may be related to human's water-retention and body-cooling system, giving special endurance.
Despite challenges such as donor shortages and socioeconomic disparities, adult heart transplantation has achieved remarkable success in the US and Western Europe. The two regions have embraced different approaches to transplantation systems, shaped by cultural and political attitudes.
A recent study has uncovered a mechanism that determines how the gut microbiome processes healthful plant compounds. The research found that 70% of enzymes in the microbiome are involved in this process, but individual variability plays a crucial role.
Researchers found significant SF6 emissions in Heilbronn region, amounting to approximately 30 tons per year, and exceeding previous estimates. The study aims to validate bottom-up assessments of emissions by complementing top-down emission estimates.
APS Open Science aims to broaden recognition for high-quality physics research across all stages of discovery. The journal will publish diverse research outputs while upholding rigorous review processes and promoting openness, inclusion, and broad participation.
A new study reveals that Homo sapiens evolved in southern Africa for at least 200,000 years, contradicting previous theories. The analysis of 28 ancient genomes found genetic adaptations that shaped the species and unique variants linked to kidney functions and cognitive evolution.
Research suggests that owning a family dog during adolescence can boost mental well-being and social support by altering the gut microbiota. The study found that adolescents with dogs had higher mental health scores and lower social problems compared to those without dogs.
Professor John Smol of Queen's University is being honored for his groundbreaking contributions to identifying stressors of environmental change in the Arctic. He has developed tools for detecting environmental shifts in freshwater and terrestrial ecosystems, providing key insights into the impact of global warming and human activities.
A new study found that tin-perovskite solar cells have significantly lower ion density and degrade five times slower than lead-based cells. The tin material also exhibits excellent stability during operation, paving the way for developing innovative thin-film solar cells.
A randomized clinical trial shows that semaglutide improves glycemic control and weight outcomes in individuals with schizophrenia. The study suggests using glucagon-like peptide-1 receptor agonists as an early intervention strategy to reduce cardiometabolic risk in this population.
A groundbreaking new study sheds light on the conditions needed for early organisms to evolve and challenges long-standing scientific theories. The research indicates that complex organisms evolved around 2.9 billion years ago, significantly earlier than previously believed.
Scientists created the first comprehensive map of neutrophils using next-generation sequencing technologies, revealing a stable architecture despite individual cells' short lifespan. This discovery opens new avenues for guiding immunity toward healing and facilitating translation to clinical studies.
Avenas has won the Rhodium Ventures 2025 Competition with its groundbreaking transparent nano-coating, reducing heat buildup in buildings and vehicles without consuming energy. The company will receive up to NIS 6.5 million in investment commitments from the Earth & Beyond Ventures fund.
Revising newborn hepatitis B vaccination guidelines may lead to increased perinatal infections, according to infectious disease experts. The study estimates that revoking the policy could result in a significant number of new infections.
A new study analyzing over 5,000 homicide victim autopsies in Maryland found that a small but significant number of deaths could have been prevented with Stop the Bleed training. The program teaches bystanders how to apply pressure, pack wounds, and use tourniquets to control bleeding.
A team of physicists at Johannes Gutenberg University Mainz has taken an important step toward answering the question of why lead behaves differently from other atomic nuclei when struck by electrons. The new measurement reveals unexpected behaviour in heavy nuclei, intensifying a long-standing puzzle that current theory cannot explain.
RWJUH and RWJMS have been designated a National Rare Disease Center of Excellence by the National Organization for Rare Disorders (NORD), joining 25 states nationwide. The Centers offer comprehensive, multidisciplinary care across various specialties.
A new study found that forensic anthropology lacks standardization in case reporting practices, with areas of division and disagreement among practitioners. The researchers believe a robust standardization is needed to ensure the objectivity and quality of reports.
Researchers recorded lemon sharks preying on jaguar cichlids, an invasive species introduced to Fernando de Noronha, in Sueste Bay. The bay's saltwater environment allows for the interaction due to freshwater inflows after heavy rains. This observation suggests that sharks may play a role in controlling invasive species populations.
Researchers found that oral bacteria from tooth infections can worsen diabetes risk through IL-17-driven inflammation. The study revealed a mechanistic link between Porphyromonas gingivalis-induced periapical disease and systemic metabolic dysfunction.
Researchers found that a decline in chaperone-mediated autophagy activity is linked to age-related muscle wasting and can be boosted by exercise and fasting. The study suggests that enhancing this process may be a promising therapeutic strategy for preventing or treating sarcopenia in aging populations.
Researchers identified a molecular mechanism linking early-life environments with memory by activating AP-1, which regulates genes involved in neuronal plasticity and learning. Early-life experiences produce long-lasting modulation of AP-1 activity, boosting gene networks that strengthen neuronal connections.
The KATRIN collaboration presents the most precise direct search for sterile neutrinos through measurements of tritium β-decay. No sign of a sterile neutrino was found, excluding a large region of parameter space suggested by earlier anomalies. The result relies on distinct detection methods and complements oscillation experiments.
Researchers at MIT have developed a shoebox-sized device that can measure blood glucose levels using Raman spectroscopy, potentially replacing finger pricks for people with diabetes. The device's accuracy is similar to that of commercially available continuous glucose monitoring sensors.
Scientists at Tsinghua University introduce a new technique to carve complex shapes on material surfaces, enabling more design freedom and efficiency in surface design. The method uses high-speed vibrations to create convex microstructures that can change how a surface interacts with its environment.