A new study reveals that severe marine heatwaves are more likely to occur now than before human-induced global warming began. The study found that the probabilities of high-impact MHWs occurring have significantly increased due to anthropogenic climate change.
Two twin studies report specific mechanisms of impaired type I interferon signaling in hospitalized COVID-19 patients, associating mutations and neutralizing autoantibodies with severe respiratory symptoms. Administering specific type I IFNs to select high-risk patients may offer therapeutic benefits, especially early in the disease co...
Researchers analyzed Y chromosomes of Denisovans and Neanderthals, finding early gene flow events led to replacement of archaic Neanderthal Y chromosomes by modern human Y chromosomes. No replacement of Denisovan Y chromosomes with H. sapiens Y chromosomes was observed.
A new study reveals that the reduction of humanmade noise from the COVID-19 pandemic shutdown led to a change in the quality of birdsong in white-crowned sparrows in the San Francisco Bay area, with birds in urban areas exhibiting greater vocal performance.
Recent studies suggest COVID-19 may cause a range of cardiovascular problems, from mild cell damage to life-threatening cardiogenic shock. The causes of these heart issues are still unknown, with factors such as inflammation response and autoimmune phenomena being investigated.
Climate data from 122 years reveal a shift from precipitation scarcity to excess heat driving concurrent droughts and heatwaves. The findings suggest bolstering risk assessment frameworks for climate adaptation and mitigation efforts.
Lockdowns cause disproportionate harm to children, affecting education and mental health. The authors argue that measures must balance young people's rights to education with community protection, prioritizing evidence-based interventions.
Pediatric patients hospitalized with COVID-19 exhibit altered immune responses, limited antibody production, and improved outcomes. Children generally experience milder symptoms and lower mortality rates than adults, potentially linked to differences in innate immunity.
A team of researchers adapted standard epidemiological models to explore how COVID-19 pandemic trajectories might unfold in the next five years. Their work emphasizes the importance of understanding adaptive immune responses and vaccine efficacy in determining future case severity and duration.
A study of over 6,500 US adults found a link between COVID-19-related symptoms and preexisting conditions, job loss, and excessive media consumption. Acute stress and depression symptoms were more closely tied to personal exposure to the virus than community-level exposure.
Researchers have identified 9 antibody-like proteins that bind to the SARS-CoV-2 virus, including 4 with neutralizing activity. These proteins show promise for developing diagnostic tests and treatments for COVID-19.
Interactions with binary companions generate complex planetary nebula shapes by influencing the stellar wind of elderly stars. Leen Decin and colleagues observed AGB star winds using ALMA, finding none with spherical symmetry and instead distinct geometries similar to those in PNe.
Researchers use natural seafloor earthquakes to determine ocean temperature across vast distances and depths, overcoming previous limitations. The technique, called seismic ocean thermometry, reveals a decadal warming trend exceeding previous estimates in the East Indian Ocean.
A global citizens' assembly consisting of at least 100 lay citizens from around the world would explore and deliberate on genome editing technologies and regulatory principles. This assembly aims to address the lack of consistent governance and bridge gaps between community values, improving overall governance of genome editing technology
Researchers examine whether animals can be deceived by magic effects, offering a window into their cognitive parallels and variances with humans.
Researchers developed an 'cell-less' therapy that accelerates recovery from heart attack in pigs by injecting tiny membrane-bound sacs containing proteins and DNA into the heart. This approach avoids safety concerns associated with whole-cell transplants, which often fail to engraft and can cause severe health issues.
Domestic horses probably did not originate in Anatolia, according to a new study of ancient horse remains. The researchers found that nonlocal genetic lineages appeared suddenly in about 2000 BCE, suggesting an origin in nearby Black Sea regions.
Research reveals that degradation of the Brazilian Amazon forest has surpassed deforestation in terms of area affected. The study found that between 1992 and 2014, degraded forest cover increased by 29,116 square kilometers compared to the 308,311 square kilometers lost to deforestation.
Researchers analyzed 455 SARS-CoV-2 genomes from Washington State and found evidence of a single introduction between January 22 and February 10. The analysis suggests that widespread surveillance is crucial even after the pandemic is brought under control, as community transmission can still occur.
The GTEx project reveals population-specific and sex-specific differences in gene expression that can inform how gene variants impact aging and disease. The findings highlight the importance of accounting for sex differences and individual variation in future studies.
Researchers found far more small-scale dark matter gravitational lenses in galaxy clusters than predicted by standard cosmology. The discovery suggests either an issue with simulation methods or incorrect assumptions about dark matter's nature.
Aleutian Reef decline is driven by the absence of sea otters, which prevents urchin population growth. Ocean warming and acidification exacerbate this issue, reducing the alga's resistance and leading to reef erosion.
Researchers developed protein inhibitors that block SARS-CoV-2 interaction with human receptor ACE2, neutralizing virus infection. The small proteins were stable and showed promise for intranasal delivery.
A meta-analysis identified seven countries with high biodiversity risk, including the US, which has a large unprotected area with significant species diversity. Targeting 'cost-effective zones' could help balance conservation goals with economic priorities, potentially expanding protected areas globally.
A series of Insights pieces examines democracy's current state, highlighting key findings on political campaigns, gerrymandering, and racialized governance. Experts propose reforms to better serve marginalized populations and improve democratic governance.
A new observational study reveals that the GW-Orionis triple-star system's disk is misaligned due to disk tearing, which could lead to planetary systems with oblique or retrograde orbits. The study provides a three-dimensional model and simulation of the system, reproducing its highly deformed disk and misaligned rings.
A mathematical model better accounts for temperature impacts from duration of exposure to improve predictions of heat mortality in natural Drosophila populations. The approach captures cumulative effects of thermal stress and is applicable to other small ectotherms.
A new Fair Priority Model proposes mitigating three types of COVID-19 harms: death, organ damage, healthcare strain, and economic destruction. The model aims to benefit people and limit harm while prioritizing the disadvantaged and giving equal moral concern to all individuals.
A comprehensive analysis of 59 real-time randomized experiments found that televised campaign ads sway candidate favorability by about 0.05 points and influence vote choice by an average of 0.7%. The impact of each ad is similar regardless of production, context, or target audience
A recent study found that prior Zika virus infection can enhance the risk of severe dengue disease. The research used a cohort from Nicaragua to confirm previous reports on cross-reactive antibodies between Zika and dengue viruses. The findings have important implications for developing effective vaccines against both diseases.
New study finds enstatite chondrite meteorites contain sufficient hydrogen to deliver at least three times the mass of Earth's oceans, contradicting assumptions that the planet is dry. The findings support the idea that Earth's water originated from the nebular material from which the planet accreted.
Cells use self-generated chemotaxis to create attractant gradients, allowing them to read local and global information about their surroundings. This process enables cells to navigate vast distances through the human body during embryogenesis and other biological events.
Researchers identified a new pathway that protects cells from Ebola virus and coronaviruses like SARS-CoV-2, by blocking viral entry into the cell. The MHC class II transactivator (CIITA) gene induces resistance to Ebola virus through the activation of CD74 p41, which disrupts viral protein processing and prevents infection.
A new study reveals a wide array of previously unknown microbial defense mechanisms against viral threats, with 29 widespread novel defense mechanisms found in nearly one-third of all sequenced prokaryote genomes.
A new study analyzing nationwide U.S. county-level data and individual-level voter records from Washington and Utah found that mandatory vote-by-mail modestly increases voter turnout by 1.8-2.9% without favoring either party. The effect on Democratic shares of the vote was not statistically significant, with a minor increase of 0.7%.
DNA nanoswitches rapidly detect SARS-CoV-2 and other emerging viruses, including Zika and Dengue viruses. The low-cost platform can be performed within hours and provides a solution for resource-limited areas.
A new study maps natural killer cells in COVID-19 patients, finding specific characteristics of activation correlate with disease severity and adaptive NK cells with severe disease. The study suggests future research directions, including the role of NK cell responses in lung tissue and variability over time during SARS-CoV-2 infection.
A new study reveals pulse-like increases in atmospheric carbon dioxide during glacial and early interglacial periods, linked to changes in the AMOC. The results suggest similar jumps could occur in the future if global warming impacts Atlantic Ocean circulation.
A new study reveals that abrupt climate warming events in Greenland during the last glacial period were synchronous with other rapid climate changes across the globe. The findings suggest that Arctic warming events triggered rapid climate change on a global scale.
A study found that a bacteriophage infecting enterococcus bacteria stimulates an immune response improving the efficacy of cancer treatments. Administration of enterococcus containing the bacteriophage boosted T cell responses in mice, and its presence was associated with improved survival following PD-1 immunotherapy.
Researchers have discovered stable, synthetic STING agonists that induce anticancer immune responses in mice. These non-nucleotide small molecule STING agonists show robust anti-tumor activities and may represent an attractive approach for targeting the STING pathway.
A new surgical procedure called RADAR has been shown to create arteriovenous fistulae that mature more quickly, remain accessible longer, and are less likely to require reintervention. The study suggests this approach may improve clinical outcomes for patients with chronic kidney disease undergoing dialysis.
Researchers analyzed facial expressions in ancient American art, finding that some emotions like elation and anger are universally conveyed. This study supports the idea that feelings can be expressed nonverbally across cultures.
Scientists have identified a small molecule that successfully inhibits influenza A, MERS-CoV, and SARS-CoV-2 in tissue culture and mice by blocking the interaction of AP2M1 with viral proteins. This finding suggests a possible broad-spectrum antiviral therapy to treat various viruses.
Researchers identified ebselen's binding activity to SARS-CoV-2 main protease, suggesting its potential as a treatment. The distant binding site may provide an alternative target for repurposed drugs.
The large-scale production of COVID-19 vaccines will necessitate the sharing of manufacturing knowledge to ensure rapid and effective scale-up. This includes disclosure of necessary information from patents, which can facilitate international collaboration and standardization.
Research integrates ecology, evolution and social sciences to highlight relationships between systemic racism and ecological heterogeneity. Neighborhood wealth and racial composition are found to be stronger predictors of urban socio-ecological patterns than wealth.
Researchers found that flu vaccines induce short-lived bone marrow plasma cells, which decline to pre-vaccination levels within a year. The study suggests that the longevity of flu vaccines can be improved by enhancing the persistence of these cells.
A recent study found that Muslim teammates improved Christian players' behavior towards their peers in an Iraqi soccer league, but this effect did not generalize to other social contexts. The research highlights the value of intergroup interventions for achieving post-war peace, but also reveals limitations in building lasting social c...
A new study reveals that the mysterious blue whirl flame consists of three different structures: diffusion, premixed rich, and lean flames. The researchers' simulations suggest that these flames can be controlled and scaled up safely to larger sizes.