Researchers have developed a stretchable passive cooling interface that spontaneously self-stratifies into a sunlight-reflecting upper region and a liquid-metal heat-spreading lower region, reducing the temperature of wearable electronics by up to 12 °C outdoors while preserving the quality of physiological signals.

A large-scale international study led by The Hong Kong University of Science and Technology (HKUST) has revealed that inter-city collaboration on emission reduction can improve overall sustainability performance by more than 10%. This comprehensive analysis covers 4,116 cities and spans 11 years of data, shedding new light on regional and global strategies towards achieving the United Nations Sustainable Development Goals (SDGs).

Researchers from Zhejiang University and Zhejiang Advanced CNC Machine Tool Technology Innovation Center, China, have developed a Symmetry-Imbued Hamiltonian Neural Operator (SIHNO) for predicting stress fields in porous metamaterials. The proposed architecture combines rotation-equivariant geometric representations with a Hamiltonian-inspired energy structure to improve prediction accuracy and robustness under different structural orientations.

The framework integrates a Rotation-Steerable Lattice Projector (RSLP), a Hamiltonian-Fueled Propagator (HFP), and a slice-aware convolutional decoder to address two challenges in stress field prediction: orientation bias caused by fixed coordinate representations and non-physical stress leakage near void-solid interfaces.

In comprehensive numerical experiments based on finite-element-generated stress fields, SIHNO outperformed several established neural operator and physics-informed models across multiple evaluation metrics. The model also maintained millisecond-level inference speed, highlighting its potential for rapid stress prediction in additive manufacturing applications.

• KAIST and Yonsei University College of Medicine develop a miniaturized wireless brain implant capable of drug delivery, light stimulation, and IoT-based remote control

• A researcher in Chicago successfully operates a brain implant in Daejeon, Korea, in real time — demonstrating the feasibility of location-independent brain research

• Enables long-term, repeated experiments in freely moving animals, paving the way for advances in addiction, depression, and neurodegenerative disease research, as well as next-generation smart implantable therapies.