Researchers at LMU present a new theoretical model for the origin of grid cells in the brain, assigning a crucial role to the timing of signals from neurons called place cells. The model suggests that grid cells are generated through synaptic plasticity and transform temporal coordinated signaling into hexagonal patterns.
A new study found that maintaining a strong ethnic identity and high levels of social support can help Latino adolescents in the US cope with racism. Outward expression of anger, however, exacerbated adjustment problems among Mexican-origin adolescents.
Researchers are still unsure how organic compounds form in hydrothermal vents on the sea floor, a key area of study as it may hold clues to the origin of life. A new NSF-funded project aims to bridge this gap by simulating conditions and generating compounds from inorganic components.
Researchers from Rutgers University and international collaborators introduce the SYMPHY framework, which classifies life based on symbiotic relationships. This new approach could lead to breakthroughs in environmental issues, sustainable agriculture, and human health.
Researchers developed a method to identify imported wood using its chemical fingerprint, distinguishing between two separate populations of Douglas-fir trees with high accuracy. The technique has the potential to help law enforcement tackle illegal logging by accurately tracing the origin of wood samples.
Researchers found that up to 89% of uranium in Wyoming's roll front deposits is non-crystalline and bound to organic matter, contradicting conventional wisdom. This biogenic uranium has implications for environmental remediation and mining practices.
The discovery of ancient buckthorn fossils in Argentina sheds light on plant recovery after the asteroid extinction event. The fossils date back to the early Paleocene epoch and provide evidence for a Gondwanan origin of the Rhamnaceae family.
Scientists discovered fossil evidence of early life in ancient hot spring deposits in Western Australia, pushing back the earliest known existence of inhabited terrestrial hot springs by 3 billion years. The discovery has implications for the origin of life and its potential preservation on Mars.
Research reveals liver progenitor cells become activated and expand due to oncogenic signals from malignant hepatocytes. Progenitor cells can lead to benign or aggressive tumours, contributing to tumour heterogeneity.
Researchers found that people with more life skills, such as emotional stability and control, enjoyed better health outcomes, including lower cholesterol levels and smaller waistlines. The study also found a link between increased life skills and reduced loneliness, depression, and improved physical functioning.
A University of Bristol team found that microbes on glacier surfaces produce significant amounts of bioreactive carbon, which is then released in streams and can stimulate other microbes in downstream ecosystems. The study suggests that active microbial processes during the melt season are crucial for this process.
Researchers at the Francis Crick Institute demonstrate a network of chemical reactions mimicking the Krebs cycle, a crucial process in cellular life. The findings suggest an enzyme-free metabolic pathway could have emerged four billion years ago, sparking the development of life on Earth.
Researchers have developed a new non-invasive method to identify the origin of atrial fibrillation, a type of abnormal heart rhythm that increases the risk of stroke and other complications. The technique uses 64-lead electrocardiogram signals to pinpoint the location of the irregular heartbeat.
Researchers used systems biology approaches to study the emergence of life and found that a few simple compounds could support a phosphate-free metabolism. This discovery challenges the current understanding of life's origin and suggests that an early self-sustaining metabolic network predated the emergence of nucleic acids.
Scientists have detected an artemisinin-resistant malaria parasite originating from West Africa for the first time in Africa, posing a significant threat to malaria control efforts. The finding confirms that the parasite carries a new mutation in the Kelch13 gene, which is the primary driver of resistance in Southeast Asia.
A study from the University of the Basque Country found that women's educational attainment and country of origin significantly impact their risk of undergoing voluntary abortions. Women with lower levels of education have higher rates of terminations, while immigrant women face unique challenges in accessing healthcare services.
A new MBL study has shed light on the origin of vertebrate gills, indicating they evolved around 600 million years ago. The research corrects a long-held misunderstanding that gills developed separately and independently in two vertebrate lineages.
Researchers solved a long-standing puzzle about the source of key stardust grains, which formed before our Solar System and can be recovered from meteorites. The study identifies Asymptotic Giant Branch (AGB) stars as the producers of these grains, shedding light on nuclear processes inside stars that led to their formation.
Researchers at Uppsala University discovered a correlation between brain tumor cell origin and its growth rate, malignancy, and response to cancer drugs. The study found that tumors originating from immature neural stem cells were more aggressive and less sensitive to treatment than those from differentiated glial cells.
Researchers find metallic iron slivers in exceptionally large stones, indicating a liquid metal origin. The discovery provides insight into the geological formation of massive diamonds, such as the Cullinan Diamond.
Researchers have solved the mystery of DNA replication by identifying a ring of proteins that binds to origin DNA, causing it to melt and initiate replication. This discovery could lead to understanding genetic duplication and potentially blocking viral pathogens and cancer cells.
ADC MI130110 shows remarkable antitumoral activity in CD13-expressing tumor cells, impairing tubulin polymerization and disrupting the microtubule network. The treatment resulted in significant reduction in tumor size, complete remission, and increased median survival time.
A team of researchers from the University of Oregon has discovered microfossils in Australian rocks that suggest life in soils may have existed on Earth over 3,000 million years ago. The findings indicate that ancient ecosystems thrived in terrestrial environments, challenging traditional views of early life on Earth.
A study co-led by the University of Arizona found that a person's birth year can predict their odds of getting seriously ill in an outbreak of animal-origin influenza virus. This 'immunological imprinting' effect provides clues for developing a universal flu vaccine.
A study by an international team solves the origin of successive generations of stars in globular clusters. The most massive, evolved AGB stars are found to contaminate the interstellar medium, giving rise to new generations of stars.
A team of researchers presented a new model for the origin of Saturn's rings based on computer simulations. The study found that Kuiper belt objects were destroyed by tidal forces when passing close to giant planets, forming icy ring systems. This process explains the compositional differences between Saturn and Uranus' rings.
The study found that 1% of chimpanzee genomes are derived from bonobos, indicating gene flow events between the species. This discovery has strong implications for chimpanzee conservation, enabling researchers to locate individual chimpanzees by their geographic origin.
A team of researchers has shed light on the origin of centaur rings, revealing a scenario where tidal disruptions lead to disc formation and ring creation. The study suggests that rings around centaurs are more common than previously thought, with many awaiting discovery.
A recent study using precise potassium isotopic data confirms the Moon was formed from a violent impact that vaporized Earth's mantle and mixed it with the impactor. This challenges the giant impact hypothesis, which had trouble matching geochemical signatures between Earth and Moon.
A widely used brain cancer cell line, U87MG, has been found to be of unknown origin and different from the original patient tumor. Researchers used forensic and mitochondrial DNA profiling to trace the cell line's origin, revealing a potential mix-up or cross-contamination.
Scientists have discovered a new species of pterosaur from the Early Jurassic period in Patagonia, Argentina. The 'Allkauren koi' species boasts an intermediate state in brain evolution, shedding light on the origin and adaptation of flying reptiles.
A new epigenetic test can diagnose the primary tumor responsible for metastasis in patients with Cancer of Unknown Primary (CUP), allowing for more specific treatments. This test, EPICUP, analyzes a patient's DNA to identify the type of cancer, resulting in improved survival rates.
A recent study has uncovered evidence of HIV-related retroviruses dating back 60 million years, challenging previous estimates of their origin. The research, led by Daniel Elleder, analyzed genomic data from the Malayan flying lemur and reconstructed ancient viral genomes.
According to new theoretical work, life on Earth is actually premature from a cosmic perspective. The chances of life growing much higher in the distant future due to star lifetimes were found to be 1000 times higher than now. Scientists recommend studying nearby red dwarf stars and their planets for signs of habitability.
A Queen's University researcher has challenged traditional explanations for the origin of birds' flight. His findings suggest that wings may have initially served signaling or sexual selection purposes rather than flying.
Researchers measured oxygen content in ancient atmosphere trapped in halite (rock salt) and found it to be a key component in determining the origin and evolution of higher life forms. The discovery has applications beyond origins of life, including tracking atmospheric changes and finding economic metal deposits.
A recent study published in Science found that early farming populations had deep genetic differences, indicating distinct ancestries. The research identified similarities between Neolithic farmer's DNA and living people from southern Asia, suggesting a federal origin of farming.
Dirk Schulze-Makuch's research suggests that the evolution of organisms functionally similar to plants or animals on Earth will naturally follow given enough time and a suitable environment. He found that critical evolutionary adaptions such as photosynthesis and multicellularity arose multiple times in different organisms.
JAX researchers found a precise way to identify the kind of cell that leads to a given case of leukemia through whole-genome profiling of open chromatin. This approach may provide insight into tumor subtypes and possibly diagnostic and therapeutic benefits.
Researchers have identified the 'cell of origin' in basal cell carcinoma, a common form of skin cancer, as stem cells. By analyzing clones derived from mutant stem cells, they found that these cells can overcome apoptosis and divide unchecked, leading to cancer growth.
A new study published in PLOS Computational Biology found that genes involved in cellular remodeling are conserved across honey bees and mammals, suggesting a common origin for social behavior. These findings provide insight into the evolution of complex sociality in animals.
Researchers demonstrate that hairs, feathers and scales share a common evolutionary origin, developing from placodes with similar molecular signatures. The study provides new insights into the evolution of skin appendages and their diversity.
A study published in PNAS found that high-altitude Himalayan populations have a remarkably stable genetic make-up despite cultural transitions and outside population exposure. The analysis suggests that these populations originated from East Asia, with genetic stability maintaining across millennia.
Researchers identified a lymphatic endothelium origin for angiomyolipoma and lymphangioleiomyomatosis, two related tumors with previously unknown cellular origins. The study suggests a potential novel origin for LAM mechanistically dependent upon TSC inactivation as well.
Researchers at Newcastle University have identified a new essential sequence within bacterial genomes required for DNA replication, dubbed the DnaA-trio. This discovery sheds light on a fundamental biological process shared among all living organisms and opens doors to studying enigmatic replication origin elements in higher organisms.
Astronomers using OISTER telescope consortium in Japan have discovered the origin of 'extraordinary supernovae', which are brighter than normal ones. The 'accretion' scenario supports the discovery, where material ejected from a white dwarf is responsible for the emission.
A newly discovered Chinese fossil, Meemannia, is the oldest known actinopterygian, providing new evidence for the origin of ray-finned fishes. The study reveals that early bony fish had 'cosmine'-like tissues, previously thought to unite lobe-fins and ray-fins, and confirms Meemannia as an early-diverging ray-finned fish.
Berroqueña stone, traditionally used in Madrid's monuments such as El Escorial and Puerta de Alcalá, is proposed for Global Heritage Stone Province status. This recognition would promote trade and employment in rural areas of the Sierra de Guadarrama mountains.
Researchers from Trinity College and Swedish Museum of Natural History found zircon crystals formed in younger impact craters are indistinguishable from ancient ones, suggesting many ancient crystals formed in violent impact settings. This challenges the long-held theory that these crystals formed during tectonic plate collisions.
Researchers from Trinity College Dublin found that the oldest zircon crystals likely formed in massive asteroid impact craters rather than through plate tectonics. The discovery sheds new light on Earth's early history and suggests a more violent bombardment by asteroids in its nascent years.
Scleratrophic skin lesions like morphea, lichen sclerosus etatrophicus (LSA) and anetoderma are associated with Lyme borreliosis, with Borrelia DNA detected in up to 50% of patients. The response to antibiotic treatment varies, suggesting a heterogeneous origin for these dermatoses.
Researchers found that young birds exhibit mature flight stroke early in development by leveraging leg and wing power, challenging existing ideas about flight origin. This discovery could provide insights into the evolution of flight in ancient theropod dinosaurs.
Researchers at VIB-UGent demonstrate that adult circulating monocytes can differentiate into macrophages with identical tissue-specific functions and self-maintenance capacities as those from embryonic origin. This discovery paves the way for monocyte-based cellular therapy in diseases associated with macrophage dysfunction, such as pu...
Researchers used a DNA tool to pinpoint the origin of Yiddish, suggesting it was invented by Iranian and Ashkenazic Jews as they traded on the Silk Road. The language is thought to have acquired new words from other cultures while retaining its Slavic grammar.
A father's family values can predict the family values held by Mexican-origin youth as well as the amount of time they spend with their families, according to new research. The study also found that parental acceptance and warmth play a crucial role in determining the link between family time and young adults' depressive symptoms.
A study found that urban gardens in Chicago's African American, Chinese-origin, and Mexican-origin communities provide important ecosystem services. The researchers identified non-native crops and synthetic fertilizers as potential issues, but also noted the cultural significance of gardening for food security and community connection.
Researchers identify two distinct HSV-1 virus strains in an individual, revealing their European/North American and Asian origins. The discovery opens doors to tracing a person's life history using genetic fingerprinting of viral genomes.
The first European Astrobiology Roadmap has been published, outlining five key research topics and recommending a platform for interdisciplinary collaboration. The roadmap prioritizes the study of life in the Solar System and beyond, including habitability, origins of organic compounds, and biosignatures.
The MAVEN mission collected data from a close approach to Martian moon Phobos, providing spectral images of the moon's surface. The observations will help scientists understand the moon's origin, comparing it to asteroids and meteorites.
A new study uses IBEX data to determine the strength and direction of the interstellar magnetic field beyond the solar system, providing insight into the galaxy's magnetic forces. The findings are based on simulations that correctly predict the locations of neutral ribbon particles and agree with Voyager 1 measurements.