A study by Kyoto University found that the quality of the relationship between humans and cats matters more than simply owning a cat in terms of health benefits. Owners who spend more time close to their cats experience lower negative feelings and more positive moods, linked to oxytocin levels in both pets and owners.
Researchers at Kyoto University developed a new super ductile steel alloy that achieves both high strength and flexibility through sequential activation of strengthening mechanisms. The alloy has exceptional uniform elongation of nearly 140 percent, delaying strain localization over a large strain range.
A team of researchers found that carbonic anhydrase VIII (CA8) coordinates insulin secretion and hepatic glucose production in mice with type 2 diabetes. The study reveals that CA8 plays a crucial role in regulating metabolic functions in the liver and pancreas.
Researchers found that eating olive oil before carbohydrates reduces early blood glucose levels and slows gastric emptying in mice, while also increasing early secretion of glucagon, GIP, and GLP-1. These beneficial effects were retained in mice with type 2 diabetes and severe insulin deficiency.
Researchers at Kyoto University used a 'honey trap' to assess habitat conditions in operational forests using Platycerus beetles. The study found that beetle capture counts increased toward forest interiors and declined toward open areas, highlighting the value of looking beyond forest-wide averages when assessing habitat conditions.
Researchers at Kyoto University developed a new, egg-yolk-free cryopreservation solution for rat sperm, yielding a fertilization rate of approximately 70% and 36% live births. The solution, combining OptiPrep, ethylene glycol, sericin, and nucleotides, reduces damage to sperm plasma and acrosomal membranes.
Researchers found nematomorphs manipulate nocturnal host behavior at night, but not in alignment with lunar cycles. The parasites' manipulation strategies may include altered geotaxis or increased locomotor activity, which can lure hosts into water without relying on light conditions.
Researchers at Kyoto University have developed a new SiC transistor structure that can operate at 600°C, scaling up production to wafer-level for high-temp applications. The team's achievement enables the fabrication of integrated circuits, opening doors to new areas like jet engine sensors and geothermal resource development.
Researchers analyzed brain activity in mice to find that neural scaling laws allow information to grow beyond a ceiling imposed by shared noise. The study, published in Science Advances, suggests that brains can process more information than previously thought.
Researchers at Kyoto University investigated the effects of high-temperature-treated soy protein on mice, revealing decreased amino acid levels and altered social novelty behavior. The study suggests that severe protein heating can negatively impact nutritional availability and physiological responses.
Roll waves play a crucial role in hydraulic engineering, but current design standards overlook their formation. Researchers at Kyoto University discovered a fundamental flaw in existing standards, revealing the importance of understanding unsteady flows like roll waves.
Tadpoles of the Japanese common toad exhibit lower kin recognition and social preference for siblings, contrary to previous studies. Social isolation, not kinship, influences association behavior in these amphibians.
Researchers at Kyoto University found that viral infection enhances plankton cell lysis, increasing dissolved organic carbon production rates by up to 302-fold. This discovery sheds light on the mechanisms behind marine ecosystems and provides valuable insights for understanding material flows within aquatic environments.
Scientists at Kyoto University's iCeMS created a foam-based technology that mimics nature to produce brilliant white materials with water repellency. The technology, called Deep Foam Photolithography (DFP), uses precisely engineered porous structures to scatter light and control water repellency.
Researchers at Kyoto University developed a molecular strategy to change porous liquid viscosity by more than eight orders of magnitude while retaining its intrinsic porosity. The study used cuboctahedral rhodium-based metal-organic polyhedra with attached flexible polyethylene glycol chains, altering the surface groups to change the c...
A team of researchers from Kyoto University created a machine-learning model to design microbial communities that promote tomato growth and stress tolerance. The communities, composed of six bacteria and the tomatine metabolite, were found to improve tomato growth and tolerance to high-temperature stress in laboratory and outdoor trials.
A non-invasive eye-tracking study reveals that gibbons gaze into the eyes when looking at others, a behavior shared with humans, great apes, and macaques. The study provides new insights into the evolutionary foundations of face perception and social information processing in primates.
Researchers at Kyoto University have developed a transistor that can operate at 600°C, leveraging the intrinsic properties of SiC to improve controllability and reduce leakage currents. The bottom-gate design significantly enhances the device's performance, paving the way for practical use in extreme-temperature electronics.
Research at Kyoto University's gardens revealed seven species of frog and one species of newt, highlighting the importance of culturally managed water features as habitats for urban amphibians. The study's findings emphasize the need to consider these sites as biodiversity hotspots, promoting coexistence with nature.
Researchers found Eu2MnSi2O7's critical behavior is driven by long-range magnetic interactions, closing a gap in universality of magnetic phase transitions. The study establishes the compound as a platform for studying long-range interactions in complex insulating magnets.
A recent study by Kyoto University researchers used high-resolution drone and satellite imagery to assess the effectiveness of the 2001 Florida Building Code in reducing wind damage from hurricanes. The results showed that homes built under the new code were 22% less likely to suffer wind damage and had lower damage severity. Additiona...
Researchers at Kyoto University use public Starlink satellite data to estimate thermospheric density around 1,200 satellites. The resulting two-dimensional snapshot provides the first tomographic analysis of its kind, demonstrating high consistency with European Space Agency observations.
Researchers at Kyoto University used the Earth's magnetic field to search for axions and dark photons, two leading candidates for dark matter. The team set new limits on axion mass, rivaling previous constraints from astrophysical observations, and detected potential signals from dark photons.
Fluctuations in nanopore structure are key to efficient molecule separation, according to a new study. The research found that dynamic 'breathing' motions can selectively accelerate the transport of one molecule over another, leading to improved separation performance.
Researchers at Kyoto University developed a new training method to study habit formation in mice, revealing two distinct brain circuits managing different aspects of habits. The first circuit determines whether behavior becomes a habit, while the second controls execution levels.
Researchers at Kyoto University successfully eliminated hepatitis C virus in six chimpanzees using direct-acting antiviral therapy, improving their liver function and health. However, two chimpanzees died of liver cancer, highlighting the need for further study and potential drug resistance.
A team of researchers at Kyoto University found that traveling waves in rat brains are linked to information transfer in consciousness, but the amount of transfer entropy is higher during anesthesia than wakefulness. The study suggests that the awake brain selectively regulates information for reliable communication.
Researchers at Kyoto University developed a hybrid graphite-based substance with aligned particles that demonstrates stable diamagnetic levitation. The team successfully created the substance by aligning micro-crystals in a uniform direction and applying a magnetic field, resulting in a miniature flying carpet-like effect.
Researchers at Kyoto University discovered an RNA aptamer, 1R6, that targets the disordered regions of alpha-synuclein protein, inhibiting its aggregation and promoting disassembly of pre-existing aggregates. This finding offers a new therapeutic strategy for neurodegenerative disorders like Parkinson's disease.
The study found that dolphins visit two coastal communities along the Sea of Japan, with detection rates occurring once every ten days. The researchers recorded unique whistle characteristics in each bay, suggesting differences in sound environments or animal behavior.
Researchers from Kyoto University and ETH Zurich analyzed large earthquake sequences in Japan, finding that b-values are controlled more by mainshock location than time-dependent changes. The study suggests local geological conditions play a key role in shaping earthquake size distributions.
A new genus of giant salamander, Limnospondylus ajimuensis, has been identified from fossilized vertebrae found in the Ajimu region of Japan. The discovery sheds light on Japan's evolutionary history and highlights the importance of preserving extant species for the future.
Researchers found that taller trees have an advantage in younger forests due to increased light capture, but shade-tolerant species thrive under tall canopies in older forests. This study reveals a mechanistic explanation for forest succession and offers insights into climate modeling and forest management.
Researchers discovered evidence of cultural exchange between Neanderthals and modern humans at Üçağızlı II Cave, including shared use of non-utilitarian materials like marine seashells. The findings suggest a deep level of interaction between the two species.
Researchers at Kyoto University found that neurons sustain DNA breaks during cortex formation, but a quick repair mechanism prevents harm. The study reveals that this damage is a normal part of brain development and may contribute to individuality and neurodevelopmental diseases.
Researchers at Kyoto University developed a new organic molecule with an ultranarrow emission spectrum, achieving monochromatic light without strong excitation. The breakthrough opens up possibilities for OLEDs with extremely high color purity and advanced functionality.
Researchers at Kyoto University used visual survey data to predict the most suitable habitats for humpback whales around Chichijima Island. The analysis revealed shallow water depths with gentle slopes as critical areas, supporting conservation efforts in the Ogasawara waters.
A study by Kyoto University researchers found that hospital admissions for persons with dementia result in higher healthcare spending, with a $2,500 increase in 30-day costs after an emergency room visit. However, there was no conclusive evidence linking hospital admission to 30 or 90-day mortality rates.
In a study on Japanese macaques, researchers found that semi-shade is an important thermoregulatory option under hot, dry conditions. The macaques preferred semi-shade over full shade or sun when it was hot and dry, but not humid. This suggests that semi-shade may play a significant role in helping endotherms cope with heat stress.
A study published in Communications Biology found that lysophosphatidic acid (LPA) exacerbates chronic pain and drives mirror-image pain after a stroke. The researchers used imaging mass spectrometry to visualize LPA and other molecules, revealing a sequential pathological process that leads to bilateral pain.
A study by Kyoto University researchers found that the bright orange tail of tadpoles serves as a lure to distract predators, allowing them to avoid more vulnerable parts of their body. The team observed that dragonfly nymphs were more likely to attack the tails than other body parts.
A team of researchers at Kyoto University has reconstructed the family tree of blood cells over a 700-million-year span, revealing their evolutionary history. They found that early blood cells emerged around the same time as multicellular animals and were macrophage-like.
A team of researchers at Kyoto University has discovered that the protein ZO-1 plays a crucial role in collective cell migration by riding ERK activation waves to podosomes on the basal cell surface. This movement enhances force generation, extracellular matrix degradation, and invasive cell migration.
Researchers at Kyoto University developed a porous polymer gel that selectively recognizes specific molecules through coordination chemistry, triggering visible color change and deformation. The gel's mechanical properties also strengthened upon recognition of guest molecules.
Researchers at Kyoto University found that hospital restructuring improved local capacity for elderly hospital admissions and enabled more efficient bed management. The study suggests that reorganization can alleviate regional healthcare disparities in the elderly population.
A new probabilistic model developed by Kyoto University shows that about 50 to 60 percent of the variance in typhoon intensity can be explained by spatial ocean surface temperature (SST) patterns and increasing average SST due to climate change.
A team of researchers created a touchscreen-based game task inspired by hide-and-seek to elicit curiosity in resident Japanese macaques. The monkeys preferred moderate uncertainty, spending nearly 100 trials without rewards. This study supports the goldilocks principle, where animals seek moderately complex or uncertain stimuli.
Researchers at Kyoto University discovered that ATF6α plays a critical role in enabling the survival and proliferation of beta cells under sustained stress, leading to impaired beta cell mass expansion. The study highlights the potential for developing new therapeutic strategies to preserve and restore beta cell mass in diabetes.
Research at Kyoto University found that individuals with fewer positive childhood experiences are more likely to perpetrate elder abuse, while those with more community-related positive experiences have a lower risk. The study suggests that multiple forms of positive experiences across different domains may be necessary to break the cy...
Astronomers using astroseismology have found that massive stars' rotation rates decrease with age, but a new study suggests this may not be the case. The research team used 3D simulations to investigate how magnetic fields affect rotation inside massive stars, revealing that some configurations can spin the core up.