Researchers analyzed ancient human DNA to discern ancestral relationships across sub-Saharan Africa, finding evidence of widespread genetic mixing and exchange along complex social networks that stretched thousands of miles. The study provides the first genetic evidence of major demographic changes among hunter-gatherer populations in ...
Researchers identified eight new microorganisms that cleave ether bonds in the lignin-based compound-2-phenoxyacetophenone. These discoveries could enhance our understanding of the carbon cycle and facilitate biotechnological applications for lignin commercialization.
Researchers at Tokyo Institute of Technology discovered a liquid-state borophene oxide with high thermal stability and optical switching behavior, even at low voltages. This material has potential for widespread applications in optoelectronics and photonics due to its noncombustibility.
Rising temperatures are causing the world's coldest forests to shift northward, threatening biodiversity and increasing wildfire risks. Soil nutrient availability also plays a key role in the response of boreal vegetation to climate change.
A recent study found that prenatal exposure to phthalates in maternal and cord blood may affect birth outcomes in infants, with potential estrogenic effects in females and anti-androgenic effects in males. Higher levels of phthalates were also associated with smaller head circumference in all infants.
Scientists observe atomic magnetic field and origin of magnetism in iron atoms using Magnetic-field-free Atomic-Resolution STEM (MARS) and Differential Phase Contrast (DPC) method. This breakthrough enables research and development of various magnetic materials and devices.
A team of researchers has developed a new method using environmental DNA analysis to track the source of fecal contamination in surface water. By analyzing specific DNA sequences, they can identify the main contributors to pollution and potentially pinpoint areas with faulty wastewater treatment infrastructure or poor manure management.
A new theorem shows that quantum entanglement eliminates exponential overhead in training quantum neural networks, enabling scalability and reducing data requirements. This breakthrough gives hope for a quantum speedup, where quantum machines outperform classical counterparts.
A new grant from HEI Energy will allow researchers to explore possible links between fracking and water contaminants in southwestern Pennsylvania. The team will examine over 7,000 water samples for 40 diverse chemical signatures to identify if contaminants originated from the fracking process or legacy resource extraction.
Researchers discovered existing cancer drugs and new compounds can reverse nucleus size changes associated with metastasis, reducing the ability of cancer cells to spread. This discovery could lead to more effective treatments with fewer side effects.
Researchers have developed a novel approach to detect non-uniformities in 2D materials, enabling the creation of new medical sensors that can detect cancer treatment drugs like doxorubicin. The sensor material combines multiple signals from graphene and molybdenum disulfide to accurately measure analyte concentration.
Researchers at the University of Houston have developed a novel 3D microscopy technique to study dendrite formation in batteries. The technology allows for the creation of detailed maps of how batteries develop dendrites, which can help manufacturers design more efficient batteries.
Scientists develop a new framework for creating versatile quantum devices by fine-tuning molecular qubits. This breakthrough enables tailored quantum systems with improved control over spin and photon properties.
A recent study published in Acta Obstetricia et Gynecologica Scandinavica has found that severe COVID-19 in pregnancy is associated with a higher risk of adverse outcomes, including preterm birth and stillbirths. The research highlights the importance of vaccination against severe disease to protect both mothers and babies.
Researchers developed a new deep learning algorithm that allows for real-time reconstruction of images combining optical and magnetic resonance imaging data. The algorithm, Z-Net, enables faster image generation and can be trained with simulated data, improving breast cancer detection.
A new study estimates that over 5.2 million children worldwide have experienced the death of a parent or caregiver as a result of COVID-19. The number of affected children has nearly doubled in the six months from May 2021 to October 2021, with adolescents aged 10-17 years being disproportionately affected.
A study published in Ibis used machine learning to predict population trends of 801 bird species worldwide, estimating nearly half are declining. Fragmented populations, particularly non-migratory birds in tropical forests, were found to be the top predictor of population declines globally.
A deep learning model has been developed to infer horizontal motion on the Sun's surface using temperature and vertical motion data. The technique shows promise for future high-resolution solar observations and laboratory plasmas.
A team of researchers from Charité – Universitätsmedizin Berlin have elucidated the process underlying drug resistance in aggressive pancreatic cancer. They found that inhibition of the RUNX1 protein limits cancer growth and may lead to effective treatment options.
The study found that exposure to dogs makes consumers more promotion-focused, while exposure to cats makes them more cautious. This effect persists even in pet-unrelated domains, influencing decision-making and judgment.
Scientists at Tel Aviv University have created two-dimensional polymer microfiber networks that exhibit shape memory properties. These networks can be controlled by temperature-induced changes, allowing for morphing materials with microscale resolutions.
A study published at Tokyo Medical and Dental University found that Mkx regulates cellular heterogeneity and gene expression in the PDL, revealing its importance in homeostasis. The results showed that a deficiency of Mkx promotes ossification in the PDL and suggests a compensatory mechanism via Scx to maintain homeostasis.
Researchers developed a machine-learning technique that can pinpoint anomalies in large datasets, such as power grid failures and traffic bottlenecks. The model uses advanced probability distributions to identify low-density values, allowing for faster and more accurate anomaly detection.
Researchers at GIST have developed a new approach for designing fiber reinforced composites, which can simultaneously optimize the macrostructure and microscale fiber densities. This method, based on multiscale topology optimization, enables the creation of functionally graded composites with improved strength-to-weight ratios, benefit...
A study published in the Journal of the American Geriatrics Society found that older adults who underwent non-elective surgery had more disabilities in daily activities after surgery. Factors associated with increased disability burden included age, sex, ethnicity, neighborhood disadvantage, multimorbidity, frailty, and health conditions.
Research reveals direct and indirect consequences of human fishing on salmon size, with size-selective fishing techniques promoting earlier maturation and large-scale prey harvesting linked to younger, smaller individuals
Researchers at Max Planck Institute for Biological Intelligence discovered how a specific type of neuron can multiply two incoming signals in fruit flies. This finding provides insight into the algebra of neurons, which underlies various brain processes such as sound localization and visual motion detection.
Researchers from the University of Oxford's Big Data Institute have created a single genealogy tracing the ancestry of all humans, combining genome sequences from eight databases and 3,609 individual genomes. The study successfully recaptured key events in human evolutionary history, including migration out of Africa.
Researchers found 155,000 individuals of the rare Serapias neglecta orchid in a military base in Corsica, showcasing its high concentration and rarity. The area's unique conditions, including low vegetation and poor fertilization, contributed to the plant's thriving population.
A new AI model combines multiple machine learning methods to accurately detect thyroid cancer and predict treatment outcomes from routine ultrasound images. The multimodal platform achieved high accuracy rates in detecting malignancies and predicting pathological stage and genomic mutations.
A Japanese research team developed a new microfluidic chip that uses dielectrophoresis to sort living cells in just 30 minutes. This technology eliminates the need for labor-intensive sample pretreatment and chemical tagging techniques, preserving cell structure and enabling faster separation of differently sized cells.
An international research team found that the protein complex NAC acts as a 'gatekeeper' controlling protein transport to the endoplasmic reticulum. NAC prevents non-specific binding of SRP to ribosomes, ensuring only proteins with ER destination are transported. This sorting mechanism ensures cellular function and viability.
Researchers at MIT have improved the efficiency of scintillators by up to tenfold and potentially even a hundredfold by creating nanoscale configurations. This could lead to better medical diagnostic X-rays, reduced dose exposure, and improved image quality.
A team of Penn State researchers developed a transparent, biocompatible ultrasound transducer chip for easy cell culture and stimulation. The chip enables high-resolution imaging and reproducible results in stem cell, cancer, and neuroscience research.
A new collection of scientific articles reviews the past decade of research on women's cardiovascular health, identifying key differences between men and women. The studies highlight critical gaps in current knowledge and emphasize the need for a more tailored approach to diagnosing and treating heart disease and stroke risk in women.
Researchers surveyed over 26,000 genetic genealogy participants about their experiences discovering previously unknown relatives. Most reported learning the identity of at least one relative, with some finding close family ties and others experiencing life-changing discoveries.
Children's mental health-related emergency department visits declined by 25.5% during the early COVID-19 pandemic. Visits among vulnerable populations, such as those with intellectual disabilities and childhood-onset disorders, were particularly reduced.
Research by Robert Sege and Allison Stephens found that emergency department visits, abusive head trauma admissions, and child welfare reports decreased during the pandemic. The authors attribute this decline to increased support for families, including financial assistance, paid parental leave, and other social factors.
A recent Mayo Clinic study found that community-based support can prevent and reverse weight gain, even during the COVID-19 pandemic. Participants who received peer-led intervention lost an average of 2% of their body weight while improving cardiovascular health measures.
A study by Arizona State University shows that certain proteins can act as efficient electrical conductors, outperforming DNA-based nanowires in conductance. The protein nanowires display better performance over long distances, enabling potential applications for medical sensing and diagnostics.
A team of scientists developed a soft haptic sensor that can accurately estimate contact points and forces using computer vision and deep neural networks. The sensor is sensitive enough to detect even tiny forces and detailed object shapes.
Researchers analyzed 280 confirmed sea turtle entanglements in Massachusetts waters and found that quickly reporting incidents can improve survival rates. The study highlights the importance of complete disentanglement to minimize injury and promote survival, with many turtles being alive weeks to years after being disentangled.
Researchers at NIMS have created a diamond field-effect transistor (FET) with high hole mobility, reducing conduction loss and increasing operational speed. The FET's normally-off behavior also makes it safer for electronic devices.
Researchers found that bilobalide, an active ingredient in Ginkgo biloba extract, protects the heart from ischemic injuries by preserving ATP generation and enhancing metabolic flux. The study suggests that bilobalide may provide a new herbal therapy for treating myocardial ischemia.
Phosphorylated α-synuclein first appears at synapses near the site of inoculation, then spreads to axons and forms aggregates in neuronal cell bodies. This process begins in the synaptic region and may provide insight into prion-like propagation.
A machine learning model predicts the risks of a pathogen gaining resistance to a particular antibiotic at an individual-patient level. The model uses patient demographic data and history of infections to identify candidate antibiotics that can prevent recurrent infections.
Researchers at MUSC and University of Florida successfully visualize the complete human brain lymphatic system in living humans using a new non-invasive MRI technique. This breakthrough enhances our understanding of brain function and may provide insights into neurodegenerative diseases such as Alzheimer's.
A new AI-based app developed by Otto-von-Guericke-Universität Magdeburg allows individuals with pedophilic tendencies to access initial consultations and remote treatment while maintaining anonymity. The technology, called AnonymPrevent, aims to increase acceptance of preventative treatment against child abuse.
Researchers discovered a new human embryonic stem cell population that closely resembles the 8-cell embryo stage, allowing them to map key genomic changes during early development. This model will help advance knowledge of genome activation errors in developmental disorders and embryo loss.
A new study provides a reliable way to estimate energy costs in dolphins by using overall dynamic body acceleration (ODBA), an integrated measure of all body motions during swimming. The study found significant correlation between oxygen consumption and body acceleration, suggesting ODBA can be a proxy for estimating cost of locomotion.
A new study found that palliative care for hospitalized patients with both COVID-19 and acute kidney injury (AKI) was often called later than expected, despite the high risk of death. Palliative care supports primary doctors in managing emotional and physical symptoms while assisting in advance care planning.
Researchers tracked a Mongolian gazelle traveling over 18,000 km, while new studies on raccoon movement inform improved vaccination strategies against wildlife disease. In contrast, urban bird species exhibit varying body weights and lifespans based on city characteristics.
Researchers found that longer and hotter roasting conditions can reduce bitterness in unsweetened chocolate, making it more palatable for health-conscious consumers. The study involved 145 participants who evaluated 27 different chocolate samples, with the most acceptable being made from beans roasted at 340°F.
A new study has found that vitamin D3 can balance people's immune systems and strengthen defenses against viral infections like Covid-19. In contrast, vitamin D2 had a questionable impact on human health, with its effects differing from those of vitamin D3.
A recent commentary argues that treating obesity should prioritize compassionate care and focus on health rather than weight. The researchers aim to eliminate the false dichotomy between eating and weight disorders, promoting a patient-centered approach that screens for and addresses eating disorders throughout treatment.
A systematic review found that intersectional identities are associated with lower diagnostic screening and reception of preventative services. Patients with these identities face increased distrust of the healthcare system and negative cancer outcomes.
A study by UMass Amherst researchers reveals a negative correlation between birds' ability to fly and their willingness to fight. The findings suggest that developing wings instead of bony spurs was driven by both sexual and natural selection, leading to the remarkable diversity of bird species we see today.
Researchers created largest human genealogy by combining thousands of modern and ancient genomes across various datasets. This unified genealogy offers insight into key events in human history, including the timing and geographical locations of migration events like the out-of-Africa migration.
Researchers have identified a link between autoantibodies against type I interferon and increased risk of severe COVID-19. The study's findings suggest that screening for these autoantibodies could help identify patients at high risk of life-threatening complications, enabling early intervention and treatment.
A Brazilian study of 2,777 patients hospitalized between January 5 and September 12, 2021 found that vaccination was the sole predictor of mortality in those over 60 with kidney failure. Vaccination also reduced hospitalization risk among non-vaccinated patients with comorbidities.