A team of international researchers proposes that sticky, surface-bound gels may have played a crucial role in the origins of life on Earth. These primitive gels could have provided the necessary structure and function for early chemical systems to become increasingly complex. The study's findings also extend to astrobiology, suggestin...
Scientists discovered a new electronic state, the 'nodal metal,' which enables room-temperature superconductivity. This breakthrough reveals how electrons behave at high temperatures and provides insights into high-temperature cuprate superconductivity.
A Japanese government panel has backed a report allowing research on human embryos created from stem cell-derived sperm and eggs. Professor Tsutomu Sawai of Hiroshima University emphasizes the need for an anticipatory, rather than reactive, approach to ethics in this rapidly advancing field.
A recent study found that over 90% of Japanese residents were unaware of human brain organoids before being asked to donate cells. The public response was hesitant, with nearly three-quarters expressing serious hesitation or outright refusal under broad consent. To maintain trust, researchers advocate for project-specific consent models.
Researchers outline 22 opportunities and strategies to help communities better prepare for and mitigate the effects of next pandemic; focusing on adaptable urban planning and smart technologies to ensure equitable and effective pandemic preparedness.
Researchers developed a novel framework to capture dynamic nature of social networks, finding that scattered seeds of connections only grow when nourished, while policy restrictions can cut network growth by almost one-third.
A new class of antivirals called Pin1 inhibitors has shown promise in reducing or stopping outbreaks of herpes simplex virus-1 (HSV-1), the common infection behind oral herpes. By stabilizing nuclear membrane structure, Pin1 inhibitors physically trap the virus in the cell nucleus, preventing it from escaping.
A new philosophical framework offers a nuanced way to think about the relationship between disability and well-being. The Conditional BDV challenges dominant views, proposing that a disability is harmful if it interferes with an individual's ability to pursue their aspirations.
Researchers at Hiroshima University have developed a highly sensitive method to detect the Unruh effect, which is a prediction at the intersection of relativity and quantum theory. The approach utilizes circular motion of metastable fluxon-antifluxon pairs in coupled annular Josephson junctions.
A new approach to urban delineation uses human behavioral patterns to determine urban areas and land use. The study analyzed Points of Interest data using Kernel Density Estimation and identified five hotspots of urban activity in Pekanbaru, revealing that traditional methods often obscure the true dynamics of urban life.
Researchers used gene expression data to identify genes related to stress responses in wild varieties, which could be beneficial for developing hardier crops. Domesticated species showed genes related to hormone regulation and chemical detoxification.
A team of researchers found that a rare South African cycad's leaves owe their bluish color to a wax-based optical effect produced by lipid compounds. The coating of epicuticular wax on the leaves forms tubular crystals that reflect light, giving the plant its unique sheen.
Researchers at Hiroshima University have found that fermenting stevia leaf extract with bacteria kills off pancreatic cancer cells without harming healthy kidney cells. The study identified chlorogenic acid methyl ester as the active anti-cancer compound, which exhibits stronger toxicity to cancer cells than chlorogenic acid alone.
Researchers have developed a technique to grow stem cells into single sheets, increasing the secretion of signaling proteins that help repair tissue and regulate the immune system. This new approach could improve stem cell-based treatments for conditions such as heart disease, liver damage, and autoimmune illnesses.
A community-based pneumococcal vaccination support program in Sera Town, Japan, reduced pneumonia-related mortality by 25% among the elderly. The program reversed a previously increasing trend in pneumonia mortality rate in the community.
Researchers found that prebiotics such as FOS increased brain GABA levels in mice, while also raising homocarnosine levels, which may enhance brain health. The study suggests a potential link between gut microbiota and brain GABA levels.
A research team at Hiroshima University found the presence of djerfisherite, a potassium-containing iron-nickel sulfide, in a Ryugu grain. The mineral's occurrence is unexpected, as it typically forms in very reduced environments and has never been reported in CI chondrites or other Ryugu grains.
The study reviews international trends in regulating stem cell-based embryo model (SCBEM) research, highlighting areas for improvement such as citizen participation, coordination, and informed consent. The authors propose a framework to alleviate complexities, treating fertilized embryos distinctly from SCBEMs and relying on committees...
A survey of stakeholders in Japan found that incorporating patient voices into assessments of genetic conditions can recalibrate people's ideas about seriousness, shifting perceptions from a tool of societal burden reduction to individual reproductive autonomy. The study emphasizes the need for including patient voices in shaping ethic...
Researchers from Hiroshima University and others identified genes associated with increased cluster-root secretion and absorption, including phosphate transporters and acid phosphatases. The study provides insights into the molecular mechanisms of cluster roots that enhance phosphorus availability in low-nutrient soils.
A new economic geography model, incorporating firm heterogeneity and environmental pollution, can help policymakers understand the impact of industrial clusters on regional development. The model suggests that changes in firm productivity distribution and trade costs can influence industrial agglomeration and region development.
Scientists have successfully visualized how musculoskeletal components are integrated into the functional locomotor system during embryonic development. The study uses a novel fluorescent mouse model combined with high-resolution imaging techniques to provide new insights into the complex process of locomotor system development.
Researchers at Hiroshima University find that Porphyromonas gingivalis can infiltrate the heart and drive scar tissue buildup, raising the risk of atrial fibrillation. The study provides evidence that periodontitis may be contributing to the surge in AFib cases globally.
A study published in Journal of Proteome Research reveals that inflammation and aging contribute to the development of non-viral liver cancer. Researchers analyzed gene expression and metabolites in normal and affected samples, identifying potential therapeutic targets for chemoprevention.
Researchers at Hiroshima University propose using Large language models like ChatGPT to teach medical ethics, citing their ability to cultivate virtue. The authors argue that LLMs can reduce the load on educators while providing a foundation for moral knowledge.
A virtual reality experiment found that fear, pain, and expectations can disrupt the mind's grip on the body. The study used the rubber hand illusion to test how top-down factors influence a sense of body ownership in individuals with depersonalization tendencies.
Researchers at Hiroshima University have discovered complex interactions between Pseudo-nitzschia groups and other algal species, suggesting salinity has a more significant influence than previously thought. This understanding is crucial for predicting harmful algal blooms, which cause substantial damage to the aquaculture industry.
A new study by Megumi Watanabe found that glass fences - invisible gendered barriers preventing women from engaging in international research and collaboration - exist within Japan, strengthened by cultural norms. Women are underrepresented among faculty and in leadership positions at Japanese universities.
A research team led by Hidemasa Bono mapped the genomes of susceptible and resistant bed bug strains, revealing new insights into the development of pyrethroid resistance. The study identified 729 resistance-specific mutations in protein-coding genes related to DNA damage response, cell cycle regulation, and lysosome functions.
Scientists at Hiroshima University have created a controlled helix using supramolecular polymerization, which can be used to control the behavior of materials in various scenarios. The new polymer has the potential to improve applications such as memory, sensing devices, and catalysis by controlling its handedness.
The GROW-THz initiative aims to develop next-generation ultra-high-speed communication technologies centered around the 300 GHz terahertz band, addressing growing demand for data communication. The project prioritizes fostering global collaboration and intellectual mobility among young researchers and graduate students.
Researchers used stable isotope analyses to determine the nitrogen isotope ratios in the hair of four closely related civet species, revealing that faunivory was much more common than previously thought. The study suggests that varying degrees of consumption of animal sources is the key mechanism of niche partitioning among these species.
Scientists have discovered materials with 'latent pores' that selectively trap molecules, leading to more efficient methods for separating and capturing chemicals. Researchers found a particular material could encapsulate one form of decalin over the other 96 times out of 100.
A new study reveals that locally optimized urban forms can significantly reduce CO2 emissions, but generalizations cannot be made due to context-dependent relationships. Urban open and green spaces are found to be paramount in mitigating urban CO2 emissions.
A new species of crustacean with unique black-and-white coloring, resembling a panda, has been discovered in Japan. The Melita panda was found in intertidal waters and is closely related to other amphipods with distinct physical characteristics.
A research team at Hiroshima University developed an analytical pipeline to identify unexploited genes associated with Parkinson's disease and oxidative stress. The study revealed two novel candidate genes, NUPR1 and UHRF2, which were absent from current gene-disease associations databases.
Researchers at Hiroshima University have identified genetic signatures of domestication in pigs and chickens, revealing changes in gene expression related to immune response, stress response, and energy metabolism. These findings provide insights into the genetic basis of domestication and highlight potential candidate genes for breedi...
Research from Hiroshima University Hospital found that YAP/TAZ interactions with RBM39 delay the degradation of RBM39 by indisulam, thereby reducing its effectiveness and conferring resistance. This mechanism may aid the development of a new therapeutic approach for patients with solid cancers including HNSCC.
A recent study analyzes the impact of post-siege reconstruction and peacebuilding in urban environments, focusing on Marawi City, Philippines. The findings suggest that urban characteristics, such as people, places, and practices, play a crucial role in shaping the rebuilding process.
Using caffeine as an indicator, researchers found that domestic wastewater is the primary source of contamination in storm drains, making it easier to identify and address leaks. The study aims to develop diagnostic technology to track down pollution caused by these leaks and protect public water bodies.
Researchers found that direct eye contact via webcam improves interviewee favorability and reduces biases. The study suggests using 'mutual gaze' can establish trustworthiness and credibility with evaluators.
A Japanese research team used machine-learning-driven modular assembly systems to create a more efficient gene editing tool. The study demonstrated an improvement in genome editing efficiency by 5%, showcasing the effectiveness of engineering zinc-finger nucleases through structural modeling.
A study by Hiroshima University found that nearly half of older adults participating in social activities experience economic insecurity, which was not linked to physical conditions or social isolation. The research suggests that targeted support could improve their mental health and quality of life.
Researchers at Hiroshima University identified 14 genes that are up-regulated and eight genes that are down-regulated when responding to five specific abiotic stresses, including drought, salinity, and cold. These findings provide new insights into the molecular mechanisms underlying plant responses to environmental stressors.
Researchers at Hiroshima University explore the ethics of growing brain organoids from human fetal brain cells, highlighting concerns over consciousness, informed consent, and medical applications. The study emphasizes the need for a global regulatory framework to navigate the complex ethical landscape of fetal brain organoid research.
A team of researchers from Hiroshima University has discovered a molecule called AIbZIP that promotes the production of cancer cells in triple-negative breast cancer. This finding may lead to new therapeutic targets for the treatment of this aggressive form of breast cancer.
The study discovered that corrugated wings exhibit larger lift than flat wings when the angle of attack is greater than 30°. The researchers analyzed the flow around a two-dimensional corrugated wing using direct numerical calculations and found a unique airflow dance set off by a distinct corrugated structure.
Researchers at Hiroshima University have found that quantum systems exhibit contextual behavior, where measurements change the results, rather than particles separating from their properties. This discovery sheds light on the counterintuitive nature of quantum mechanics and may lead to practical applications in quantum computing.
Researchers found that primary cilia length affects wound-healing time, with shorter cilia associated with faster healing. The circadian rhythm influences primary cilia length, leading to enhanced daytime wound repair.
A new framework for urban climate action planning has been developed to aid local governments in developing and assessing their climate action plans. The framework includes 43 globally recognized criteria across three stages of climate planning, with over half of existing urban plans having a medium level of suitability.