Japan

COW and GEP are new types of exploding stars. Researchers have succeeded in explaining the features of a new type of supernova which appears ten to a hundred times brighter at its peak, and with a much faster rise toward the peak compared to an ordinary supernova.

A new method for creating a highly useful chemical subunit eliminates the need for precious metals, potentially leading to the sustainable production of pharmaceuticals and electronics.

Predator species may buffer the negative impacts of climate change by mitigating against the loss of biodiversity, according to new research led by scientists in Trinity College Dublin and joined by scientists at Hokkaido University

A team of researchers including Kavli IPMU's Valeri Vardanyan and Misao Sasaki have theorized that in addition to the gravitational waves originating from vacuum fluctuations during inflation, a large amount of gravitational waves can be sourced by the quantum vacuum fluctuations of additional fields during inflation.

A collaborative team led by researchers from Institute of Industrial Science, The University of Tokyo uses a single water molecule in a C60 cage to probe quantum mechanics

Researchers at Kanazawa University report in Applied Physics Letters the design of an ultrafast amplitude detector for use in high-speed atomic force microscopy. The detector will enable the real-time recording of fast dynamical processes of biomolecules.

Researchers from Osaka City University have shown in mice models of Alzheimer's disease, frontotemporal dementia, and dementia with Lewy bodies, that the intranasal administration of rifampicin and resveratrol in combination is safer and improves cognitive function more than rifampicin alone. The research results are expected to lead to the development of safe and effective nasal spray for the prevention of dementia.

By searching for the protein transglutaminase 1 (TGM1) among patients with various autoimmune skin diseases, researchers have successfully identified a separate disease that can be linked to autoimmunity against TGM1. This backward method demonstrates a new way of identifying autoantigens as markers for various diseases. By letting autoantigens point to the disease, diagnosis and treatment can be facilitated, according to the study now published in PNAS.

Scientists predict that continued global warming under current trends could lead to an elevation of the sea level by as much as five meters by the year 3000 CE.

We have succeeded in establishing a mouse model that develops gastric cancer closely resembling advanced human gastric cancer. Using this model, we have discovered gastric cancer stem cells, i.e. Lgr5+ gastric cancer cells, essential for the development, maintenance, and metastasis of cancer. Our study provides an experimental system that enables detailed analysis of highly malignant gastric cancer and is expected to lead to the development of a breakthrough treatment for advanced human gastric cancer.

In a study of 280 patients who underwent transcatheter aortic valve replacement (TAVI), researchers investigated the 3-year prognostic impact of frailty evaluated by the Kihon checklist (KCL), a survey originally developed to identify elderly individuals who were at risk of requiring support within the Japanese long-term care insurance system. Results showed that the estimated 3-year mortality rate was significantly higher in individuals who ranked high on the KCL, showcasing the checklist as a simple tool to be used alongside other surgical risk scores, in identifying patients who are too frail to benefit from TAVI

An international team of astronomers has revealed a new map of the Milky Way galaxy’s outer disc showing remains of tidal arms excited from interactions with satellite galaxies in the distant past.

In a study published in Nature Energy this month, researchers led by Kyoto University’s Institute for Integrated Cell-Material Sciences (iCeMS) describe how nanodiamond-reinforced composite membranes can purify hydrogen from its humid mixtures, making the hydrogen generation processes vastly more efficient and cost-effective.

Researchers are closer to understanding potential common features of sources of oxidative stress observed in several diseases, from Parkinson’s disease to cancer.

In a recent study published in the Journal of Extracellular Vesicles researchers from Kanazawa University have visualized structural changes on the surface of SARS-CoV-2 that enable it to enter human cells.

The Akira Suzuki Award and the ICReDD Award, both sponsored by the Tosoh Corporation, were established in 2021 by the Akira Suzuki Award Organizing Committee, led by professors at the Institute for Chemical Reaction Design and Discovery (ICReDD), in commemoration of Professor Akira Suzuki’s winning of the 2010 Nobel Prize in Chemistry and in celebration of his 90th birthday.

Using data on electromagnetic (EM) waves and plasma particles measured simultaneously via multiple satellites, an international collaborative research group has discovered the existence of invisible “propagation path” of EM waves and elucidated the mechanism by which EM waves propagate to the ground.

A team of astronomers including Kavli IPMU's Ji-an Jiang has discovered the fastest optical flash of a Type Ia supernova.

If researchers can detect Q-balls in gravitational waves, it could help explain why more matter than anti-matter was left over after the Big Bang.

Scientists at Hokkaido University and Texas A&M University have identified a key mechanism used by the SARS-CoV-2 virus to evade host immune systems.

Examination of Japanese cases of gynecological cancer offers a better understanding of the profile of a rare ovarian tumor and could change treatment guidelines.

Researchers from the The University of Tokyo Institute of Industrial Science use electron energy loss spectroscopy to understand local thermal behavior at grain boundaries in polycrystals

Synthesized microrobots that are capable of converting their mechanical motion into a means of self-propulsion in water have been developed by scientists at Hokkaido University.

In a continuing effort to improve upon previous work, a research team at the Graduate School of Science, Osaka City University, have applied their recently developed Bayesian phase difference estimation quantum algorithm to perform full configuration interaction (full-CI) calculations of atoms and molecules without simulating the time evolution of the wave function conditional on an ancillary qubit. Superior to conventional methods in terms of parallel execution of quantum gates during quantum computing, this new algorithm is expected to be much easier to implement in actual quantum computers.

Researchers from the Osaka City University Graduate School of Medicine have shown in patients with early-stage hepatocellular carcinoma who received cancer treatment that eliminating the hepatitis C virus with a direct-acting antiviral treatment reduces the risk of the liver cancer progression and increases overall patient survival.

Feeling unsure of yourself? Your brain’s background noise may be interfering with the long memory signals communicated by your neurons’ electrical chatter.

A new method for creating one of chemistry’s most widely used class of compounds could revolutionize industrial processes, making them cheaper, simpler and more environmentally friendly.

Surveys have revealed an upward trend in the number of brown bears over the past three decades in Hokkaido, Japan's northernmost island. Researchers at Hokkaido University have been investigating the causes and implications of the increase.

Scientists are turning to genomics to better understand the epidemiology of malaria and to inform control and elimination interventions and strategies. In the Lake Victoria region of Kenya, malaria burden remains very high despite more than a decade of intense control activities. A team of researchers from Osaka City University, Nagasaki University, London School of Hygiene and Tropical Medicine, and Mount Kenya University generated whole Plasmodium falciparum genome sequences from the lake region. Their analyses revealed that malaria parasites from this region appear distinct from other parasites from East Africa, while frequencies of known drug resistance markers were similar to those in other East African parasite populations. Their findings will help to develop improved surveillance tools to determine parasite transmission routes and aid clinical disease management.

Researchers at The University of Tokyo use numerical simulations to model the process called devitrification during which glasses crystallize, which may help improve the long-term stability of glassy materials, like pharmaceuticals and smartphone screens.