Researchers at the University of Osaka, Shimane University, and Kyoto Sangyo University have now theoretically identified an unusual pattern of vibrations that emerges just before a crystal made of regularly arranged grains yields. Many vibrational modes soften simultaneously along particular directions, while long-wavelength waves travel more slowly than shorter ones. The findings reveal a possible physical precursor to failure in highly ordered particulate materials.

A research team led by Associate Professor Junji Konuma of Toho University, in collaboration with Nobuaki Nagata of the National Museum of Nature and Science and Professor Teiji Sota of Kyoto University, reconstructed the evolutionary and geographic history of this beetle species by combining genetic data from 170 individuals sampled at 70 sites with morphological data from 50 populations. These analyses suggested that body shape underwent adaptive divergence not only among islands—including Hokkaido and Sado Island—but also between regions within Honshu, the largest island of Japan.

An Osaka Metropolitan University-led research team quantified the genetic disturbance in the endangered butterfly Luehdorfia japonica.

Published in Science, new research challenges long-held beliefs on memory retention, demonstrating the importance of higher-order synaptic architecture. The study suggests that specific clustered patterns of connections between brain cells may be key to retaining long term memory.

A simple flame-synthesis method can produce highly active catalysts for converting carbon dioxide into methane, as reported by researchers from Science Tokyo. The team used flame-assisted spray pyrolysis to manufacture nickel–cerium oxide catalysts with finer nanoparticles and more active sites than conventional methods. These catalysts achieved outstanding methanation performance while remaining suitable for large-scale production, offering a practical route toward carbon-neutral fuel technologies.

Osaka Metropolitan University researchers discovered that the mitochondrial protein OPA1 in hypothalamic MC4R neurons plays a vital role in controlling fat intake and body weight in mice. The study also highlights significant sex differences in obesity-related responses, offering new insight into the neural regulation of energy balance.

Osaka Metropolitan University researchers examined the relationship between herbivory and protection against Chl phototoxicity in leaf beetle larvae. 

Published in Chemical Science, researchers at the Okinawa Institute of Science and Technology (OIST) have designed and synthesized new multi-functional compounds that change structure under UV light. Depending on the light conditions,  the molecules reversibly switch between two stable forms through a ring-opening and ring-closing reaction.  These molecular switches have a range of desirable properties, for example glowing with fluorescence after their structure changes, making it easy to see which state the molecule is in.