Talking to oneself is a trait which feels inherently human - but it’s not just humans who can reap the benefits of such self-talk. Published in Neural Computation, scientists from the Okinawa Institute of Science and Technology (OIST) have demonstrated the potential of inner speech to improve AI learning, showing how AI models can generalize across different tasks more easily when supported by both inner speech and short-term memory.

An Osaka Metropolitan University-led research team analyzed residential energy consumption in ten cities across Japan from north to south and confirmed that significant energy savings can be achieved through enhanced insulation and innovative window design. 

Several barriers in schools make teaching challenging, particularly for early-career TESOL (Teaching English to Speakers of Other Languages) teachers. A study from Doshisha University examined the professional development experiences of three such teachers from their school years through university and into the early stages of their careers. The findings revealed critical factors at each stage that can support teachers’ professional development, even in schools full of constraints, carrying significant implications for advancing TESOL education.

Scientists discovered how a brain-specific enzyme adds branches to protein-linked sugar chains, enabling them to grow into more complex structures. The study shows that this branching step is essential for further glycan extension, helping explain molecular processes linked to neurological disorders such as demyelination and brain tumors.

Nanophotonics is a research field in which light is freely controlled by nanosized structures even smaller than the wavelengths of light itself. A Kobe University research group developed a nanoparticle made from silicon called a “nano-antenna” and provided this nanomaterial to research institutes both in Japan and overseas, engaging in international joint research projects for the past three years. This research then developed into an international research platform with Kobe University at its core and is expected to be applied to a wide variety of fields, from next-generation optical information communications technology to life sciences. We asked Associate Professor SUGIMOTO Hiroshi of the Graduate School of Engineering, an expert at the forefront of his field, about the results of the past three years and his thoughts on potential future developments.

A low-cost, portable radiation dosimetry system uses a smartphone and radiochromic film to provide immediate on-site dose assessments of radiation.

The “Wakuwaku Aira Dinosaur Museum Exhibition,” organized by Aira City in cooperation with Okayama University of Science, concluded successfully on December 27, 2025, attracting a total of 11,580 visitors over eight days. Held at Aira Square in the city’s newly completed municipal office building, the exhibition showcased approximately 20 dinosaur-related specimens, including a full-body tyrannosaurid skeletal reconstruction, a Triceratops skull, and Tarbosaurus fossils.

The exhibition emphasized hands-on learning and research outreach, featuring a recreated excavation site from the Gobi Desert in Mongolia, along with panels and videos introducing paleontological fieldwork. Daily workshops allowed children to experience fossil replica making and fossil cleaning activities. Students from the Faculty of Biosphere-Geosphere Science served as guides, providing accessible explanations of dinosaur research to visitors.

On the final day, an educational lecture titled “Digging for Dinosaurs in Mongolia!” was delivered by Masato Fujita, professor of dinosaur paleontology and director of the Museum of Dinosaur Research at Okayama University of Science, attracting approximately 150 attendees.

Originally expected to draw around 5,000 visitors, the exhibition’s turnout more than doubled projections, highlighting strong public interest in dinosaurs and science education. Organizers noted that the combination of authentic research content, interactive experiences, and student-led explanations contributed significantly to the exhibition’s success.

Professor Hirotoshi Mori (Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University), together with Nichika Ozawa (first-year Ph.D. student at Ochanomizu University) and Assistant Professor Nahoko Kuroki of Ochanomizu University, has proposed a new design principle for QM/MM (quantum mechanics/molecular mechanics) simulations. The approach enables objective and automatic determination of the quantum-mechanical region based on electronic-state changes, addressing a long-standing challenge in multiscale molecular simulations. This work was published online in Advanced Science on December 23, 2025 (JST), an international journal that features conceptually innovative and interdisciplinary breakthroughs across materials science, life science, chemistry, and physics. This article will be published in issue 17 (March 23rd) of Advanced Science, and the cover design suggestion has been selected to be featured on a frontispiece in it. A frontispiece is a full-page image (similar to a cover) placed at the beginning of this article that highlights outstanding results.

A new portable reactor based on solid oxide fuel cell solves thermal management and safety issues, as reported by researchers from Japan. This miniaturized reactor can start up rapidly within 5 minutes at room temperature and demonstrate electric power generation. Featuring an innovative structural design with high thermal insulation and a multilayered insulation system, this microreactor design could be used to power a wide variety of edge devices, including drones, compact robots, and AI hardware.