Peer Reviewed

-Microrobots disintegrate in the body after delivering stem cells to the target point, and the delivered stem cells are verified to be capable of normal proliferation and differentiation. -Expected to contribute to increasing the efficiency of regenerative medicine such as stem cell delivery.

Hokkaido University researchers find a new way of producing the industrially important propylene that is more energy efficient than existing approaches—and in the process turns carbon dioxide into another usable resource. Their pioneering catalyst design thus contributes to the carbon neutralization of the petrochemical industry.

A special issue of Horizon Journal of Humanities & Social Sciences Research (JHSSR Vol.4 (S) Oct. 20212) is now published. This issue includes papers on the Covid-19 pandemic, developments in business and digital practices, changes in social media behavior in South Asia.

Chaos theory improves understanding of Arctic narwhal behavior, with the aim of helping efforts to protect this vulnerable species.

Researchers led by Osaka University developed a novel fluorescent sensor to detect and monitor levels of the neuropeptide oxytocin, also known as the “happy hormone.” The OT sensor facilitated the successful measurement of OT dynamics in the brains of living animals and may serve as a foundation for the development of therapeutics for the treatment of neurological disorders such as autism and schizophrenia.

Researchers at The University of Tokyo grow a nanoscale layer of a superconducting material on top of a nitride-semiconductor substrate, which may help facilitate the integration of quantum qubits with existing microelectronics

A pathway that malfunctions in advanced non-alcoholic fatty liver disease could be fixed with the aid of spermidine, a compound naturally found in bodily cells and certain whole foods.

Scientists have uncovered how Coxsackievirus B3, the most common cause for viral heart inflammation, takes advantage of a specific heart sensor to trigger chronic inflammation that can lead to heart failure.

Researchers from The Institute of Industrial Science, The University of Tokyo have developed a streamlined photo-uncaging system for photodynamic cancer therapy, using a pulse of light for tumor-specific activation of a cancer-fighting agent

A research group led by the Institute of Industrial Science, The University of Tokyo, finds that sensory neurons in human skin modulate melanocytes via the secretion of Repulsive Guidance Molecule B

The activity of deep-focus earthquakes, which increases with depths from ~400 km to a peak at ~600 km, is enigmatic because conventional brittle failure is unlikely to occur at elevated pressures. Our experiments showed that formation of thin weak layers filled with nano-crystalline olivine/wadsleyite, upon the pressure-induced phase transition of olivine, is the major cause of deep-focus earthquakes on the metastable olivine wedge in deep slabs.

Researchers found a new way to reduce carbon dioxide (CO2) emissions by wrapping copper nanocubes with an organic layer, solving instability and selectivity problems with copper nanocubes in catalysis, and improving how this electrocatalyst converts CO2 into organic molecules.

Osaka University researchers identified the specific protein complex that recognizes when cellular organelles called lysosomes become damaged. When this occurs, the CUL4A protein complex transfers a molecular tag, called polyubiquitin, to a lysosomal protein known as LAMP2. WDFY1, another protein in the complex, is able to recognize and interact with LAMP2. These initial steps are critical to beginning a process called lysophagy, in which these damaged lysosomes are cleared away by the cell.

Cellular structures called mitochondria depend on microproteins to assist and control the assembly of a protein chain that extracts energy from nutrients, according to a new study by scientists in Singapore.

Researchers develop a new integrated framework that factors in the many variables relevant to accurate carbon emissions modeling in the transportation sector, allowing for policymakers to choose the best path to achieve carbon neutrality.

Measuring the velocity field of a fluid flow, such as air or water, allows for greater feedback and control, something that could boost the performance and fuel-efficiency of aircraft. A research group has developed, and now successfully tested, a new method to measure fluid flow velocities.

It is commonly believed that patients with chronic kidney disease should limit their protein intake given that excessive protein worsens kidney function. However, a new study by Osaka Metropolitan University scientists indicates that changes in skeletal muscle mass are positively correlated with protein intake, suggesting the necessity of adequate protein intake to improve muscle mass after kidney transplantation.

Various approaches for treating lymph node metastasis exist. But now, a research team from Tohoku University has combined two forms of therapy to create a superior treatment method than conventional chemotherapy.

A team of researchers including Kavli IPMU has found people in Japan, US, and Germany show different concerns regarding Artificial Intelligence (AI) being used in entertainment, shopping services, or to help find criminals.

A commentary in Nature Medicine advocates the proper application of artificial intelligence in healthcare and warns of the dangers when machine learning algorithms are misused.

Demonstration of embodied cognition mechanisms in the brain could have implications for artificial intelligence.

An estimated 1208 excess suicide deaths for men and 1825 for women were recorded during the COVID-19 Pandemic in Japan through December 2021, with the impact being greatest in women and younger age groups.

Research shows that natural catastrophes may trigger or exacerbate attacks of incapacitating migraine in disaster victims.

An international research team led by scientists from Osaka Metropolitan University has developed a method to identify symmetries in multi-dimensional data using Bayesian statistical techniques. Bayesian statistics has been in the spotlight in recent years due to improvements in computer performance and its potential applications in artificial intelligence. However, this statistical approach requires complex calculations of integrals, which are often considered approximations only. In their new study, the research team successfully derived new exact integral formulas. Their findings contribute to improving the accuracy of methods to identify data symmetries, possibly extending their applications to wider areas of interest, such as genetic analysis.

Microglia acts as the first line of defense in the central nervous system, constantly scanning for pathogens and abnormalities. Now, Tohoku University scientists have demonstrated that microglial genes associated with the synapse—structures that allow neurons to pass signals to one another—undergo changes in response to the brain processing traumatic memories.

Researchers at The University of Tokyo create a geometric representation of thermodynamic systems and apply it to self-replicating processes, which may help improve our understanding of the physical constraints of living organisms

While the primary site of SARS-CoV-2 infection is in the nose, most antiviral immunity studies have been performed with peripheral blood. T-cell analysis of nasal swab samples suggests getting infected with SARS-CoV-2 following vaccination could confer potentially more robust, nasal-based immunity.

Osaka Metropolitan University scientists developed a new method to isolate hepatic stellate cells (HSCs), which play a significant role in liver cancer progression. With enzymatic cold perfusion and utilization of an antibody against CD49a, a reliable HSC surface marker, the new method allows HSC isolation with high yield and purity from livers with various conditions, be they normal or fatty tumor-prone, from both mice and humans. The findings are expected to contribute to the development of efficient tools for characterizing NASH- or fatty liver-based liver cancer.

Researchers study sex-determination in birds using primordial germ cells and RNA-sequencing analysis.

Researchers at Hiroshima University are closer to identifying the molecular processes underlying how floods deprive plants of oxygen — and how to engineer hardier crops.