A new study reveals that people are capable of articulating multiple considerations when making moral decisions, including harm, welfare, individual rights, fairness, and justice. Despite the complexity of scenarios like the trolley dilemma, participants were able to provide reasons for their judgments, indicating that moral reasoning ...
Genomic analysis reveals no evidence of archaic human DNA in Flores pygmy genomes, contradicting expectations of gene flow from Homo floresiensis. Instead, the population's short stature is attributed to natural selection on pre-existing genetic variation.
A policy statement by the American Psychological Association highlights the negative effects of deportation on families, children, and entire communities. Research reveals increased anxiety, trauma, and depression among affected individuals, as well as housing instability, academic withdrawal, and family dissolution.
Golden-crowned sparrows have different ways to assess dominance status depending on whether the interaction is with a familiar bird or a stranger. With familiar birds, social recognition governs dominance relationships, while with strangers, crown plumage takes center stage.
Researchers have calculated the capacity of North American forests to sequester carbon, finding that they have reached 78% of their potential and will only gain 22% more in the next 60 years. This is a critical finding with implications for forest management, climate scientists, and policymakers.
Scientists have created an 'electrogeochemical' method that captures carbon dioxide from the atmosphere while producing hydrogen gas for use as fuel. The technology also counteracts ocean acidification by converting carbon dioxide into a dissolved mineral bicarbonate already abundant in the ocean.
A study of Hindu and Muslim children in India found they think people should follow their own norms, but not those of other religions. Children also expressed preferences for their own religion, with no evidence of rejecting the norms of another faith.
Researchers propose that small dust clouds can partially obscure the innermost regions of AGNs, causing changes in light emissions. This explanation resolves long-standing puzzles in astrophysics.
Researchers discovered three human-specific genes influencing brain size, involved in genetic defects associated with neurological disorders. The genes, part of the Notch family, regulate neural stem cell development and delayed maturation, leading to larger brain sizes in humans.
A new study provides a unified model for understanding tidal disruption events, which occur when a star is torn apart by a supermassive black hole's gravity. The model reveals that viewing angle accounts for differences in observed properties of these events, offering a coherent framework for researchers to analyze.
Researchers found that bipolar cells can grow new branches and reestablish selective connectivity with photoreceptors after an injury. This discovery provides hope for therapeutic strategies to replace lost photoreceptors and restore color vision in diseases such as age-related macular degeneration.
Researchers observed a downward beam of positrons in Hurricane Patricia's eyewall, creating powerful gamma-rays and x-rays. The detection confirms a theoretical prediction made years earlier, suggesting TGFs can be detected via the reverse positron beam using ground-based instruments.
Recent studies suggest tRNAs and tRNA fragments are involved in cellular processes associated with diseases such as cancer, viral infections, and neurodegenerative disorders. Dr. Todd Lowe's lab is characterizing all 500 human tRNA genes to determine their roles in the cell.
Researchers used a deep learning algorithm to classify real galaxies in Hubble images, achieving remarkable consistency in its classifications. The study found that the algorithm identified a specific mass range for the 'blue nugget' phase of galaxy evolution, which is followed by quenching of star formation in the central region.
A new study reveals that restoring coastal wetlands and oyster reefs can significantly reduce flood risks on the US Gulf Coast, with potential benefits exceeding $7 in direct flood-reduction benefits for every $1 spent on restoration. Nature-based solutions can be more cost-effective than traditional 'gray' measures like seawalls.
Research finds that coastal stream restoration projects are unevenly distributed across central California, favoring areas with more affluent residents. The study analyzed 699 sites of publicly funded restoration projects between Santa Cruz and Santa Barbara counties, identifying native fish presence as the primary ecological driver an...
Researchers analyzed genomic and molecular data from 33 cancer types and identified 28 molecular clusters. The study provides new insights into cancer classification and potential treatment options.
Researchers developed a new measurement called Radiated Energy Enhancement Factor (REEF) to capture variations in earthquake rupture complexity, revealing regional patterns and differences in fault properties. This improvement could help seismologists better understand earthquake mechanics and hazards.
Researchers analyzed sea star populations along the US west coast and found severe declines in southern California and the Channel Islands. Juvenile sea star mortality increased by approximately 90 percent, while ochre sea stars are a keystone species crucial to intertidal ecosystems.
Scientists have used nanopore long-read sequencing to generate the first complete and accurate linear map of a human Y chromosome centromere. This milestone marks the beginning of a new era in human genetics and genomics, where gaps in the genome reference will no longer be tolerated.
A recent study found that soil fungi can impact the ability of forests to adapt to climate change. Soil carbon-to-nitrogen ratios increase with ECM dominance and are more associated with low soil nitrogen levels. This suggests that mycorrhizal guilds may be emerging functional traits that define species in terms of their ecological roles.
A study by UC Santa Cruz researchers has found that 99% of mussels collected from San Francisco Bay were contaminated with at least one algal toxin, and 37% contained four distinct kinds of toxins. The contamination exceeded regulatory guidelines for multiple toxins in previous years.
Researchers at UC Santa Cruz have identified a promising route for designing an effective vaccine against respiratory syncytial virus (RSV). The study focused on the RSV G glycoprotein and found that protective antibodies target specific sites on the protein, which can induce an immune response.
Marine animals such as seals, whales, sharks, turtles, seabirds, and others exhibit similar movement patterns globally, despite differences in geography, phylogeny, or travel mode. In coastal areas, tracking data show complex search behavior, while open ocean movements are more predictable.
A comprehensive analysis of 101 major earthquakes found most aftershock activity occurred on the margins of the fault slip zone, supporting the idea that large-slip zones are unlikely to rupture again soon. Stress increases in surrounding areas.
Researchers have obtained detailed three-dimensional images of a megathrust fault west of Costa Rica, revealing long grooves and other features that may control how the fault slips in an earthquake. The study provides unprecedented insight into the mechanisms at work along these faults, critical for disaster management worldwide.
Researchers have made significant advancements in HIV vaccine production, using robotics and gene editing technology to improve yields and reduce costs. The new methods could lead to more effective vaccines with higher efficacy rates, potentially increasing protection against the AIDS virus.
A new study reveals polar bears have higher metabolic rates than thought, making them struggle to catch enough seals to meet their energy demands. The research found that five of nine adult female polar bears lost body mass due to insufficient fat-rich prey.
Researchers discovered a complex system regulating the same genes in humans and mice, yet evolved independently. Noncoding RNAs with origins in DNA segments inserted by retrotransposons played a key role in this convergent evolution.
A new carbon-based nanocomposite with embedded metal ions has shown impressive performance as a catalyst for electrolysis of water to generate hydrogen. The material's high catalytic activity and stability could lead to low-cost and efficient hydrogen production, a key step towards clean fuel.
The UC Santa Cruz Genomics Institute's Treehouse Childhood Cancer Initiative has received a $500,000 grant to conduct a 24-month registry study evaluating the effectiveness of comparative RNA-seq analysis in pediatric cancer treatment. The project aims to assess the impact on clinical decision-making and patient outcomes.
A new study published in Nature shows that the mass of a galaxy's central black hole determines when its star formation history stops. The study found a continuous interplay between black hole activity and star formation throughout a galaxy's life, with bigger black holes quenching star formation faster.
Deep-diving narwhals experience unusually low heart rates while escaping human disturbances, potentially harming oxygenation and brain function. The study's findings raise concerns about the effects of ocean noise and increased human activity on these Arctic whales.
Research reveals that variation within species has significant ecological consequences, often rivaling those of species themselves. The study found that trait differences can affect prey populations and grazing insects, leading to indirect effects on ecosystems.
An international team of researchers discovered a previously unrecognized genus of extinct horses in North America, diverging from the main trunk of the Equus family tree around 4-6 million years ago. The new species, Haringtonhippus francisci, was a widespread and successful species that survived until roughly 17,000 years ago.
Researchers found that blue whales tend to be 'right-handed' when feeding, rolling about 90 degrees to the right side during most lunges. However, they roll to the left when approaching from below to target patches of prey, allowing for more efficient feeding.
A new study analyzes DNA from museum specimens and finds that passenger pigeons' low genetic diversity was caused by natural selection, which spread beneficial mutations rapidly and eliminated deleterious ones. The research suggests that the species' adaptation to large flocks may have become a liability when their population declined.
A new analysis of Pluto's hydrocarbon haze reveals a novel cooling mechanism controlling the dwarf planet's frigid atmosphere. The study proposes that haze particles absorb heat and emit infrared radiation, resulting in an atmospheric temperature of about 70 Kelvin.
Researchers found glacial polish is a thin, deposited layer that helps explain its resistance to weathering. It can influence glacier speed and provide an archive for dating the material.
The University of California, Santa Cruz, has developed solar greenhouses that can generate electricity while promoting plant growth. Eighty percent of plants showed no impact, while 20% grew better under the magenta windows.
A new study by UC Santa Cruz and University of Cantabria, Spain, has identified hotspots of coastal risks in Latin America and the Caribbean. The Comparative Coastal Risk Index reveals over 500,000 people living in high-risk areas where coastal hazards and poverty converge.
A new study explores the coevolving web of life as a network, revealing counterintuitive results on direct and indirect effects within large webs of interacting species. The findings suggest that strong coevolutionary selection between partners increases the importance of indirect effects on overall evolution.
Astronomers have made the first-ever observations of a merging neutron star, detecting both gravitational waves and a brilliant explosion of visible light. The discovery has opened a new window into understanding neutron star physics and could resolve a long-standing question about the origins of heavy elements.
A new study by UC Santa Cruz researchers rules out pre-European contact between Easter Island inhabitants and South Americans, leaving many questions unanswered about the island's population dynamics. The analysis of ancient DNA from skeletal remains found no evidence of gene flow between the two groups.
Researchers at UC Santa Cruz have developed a new coating technology using thin-film materials from the electronics industry to improve telescope mirrors. The technology uses atomic layer deposition to create a protective silver coating on large silver-based mirror surfaces, potentially increasing their efficiency and extending their l...
A study documents the local extinction of the American pika from a 64-square-mile area in California's northern Sierra Nevada mountains due to climate change. The species is expected to decline drastically by 2050, with pikas disappearing from an area that stretches from near Tahoe City to Truckee.
Researchers analyzed century-old seal pelts to investigate human impacts on the Antarctic ecosystem. They found that Weddell seals' diets have not changed significantly over the past hundred years, but significant change occurred in the phytoplankton community, likely due to climatic shifts.
Scientists at UC Santa Cruz have made progress understanding and predicting toxic algal blooms, but the trigger for domoic acid production remains a mystery. A new grant will fund research to unravel the interaction between algae and bacteria, which are found in association with toxic blooms.
Scientists from UC Santa Cruz and the Nature Conservancy released a report identifying lands in Florida that are potential targets for projects with multiple benefits, such as reduced flood exposure, conservation, and remediation of social vulnerability. The study proposes prioritizing property buyouts based on these factors to support...
A new analysis published in Science Advances found that the probability of moderate earthquakes in Oklahoma is two times higher than initially predicted, contradicting earlier predictions of reduced seismic activity. Moderate earthquakes continue to pose a significant hazard in central and western Oklahoma.