A systematic assessment of 102,847 plant specimens across nine subtropical mountains in Jiangxi, China, identifies four interconnected collection biases and proposes evidence-based strategies to improve sampling equity and conservation effectiveness.

This study presents a method for fabricating high-resolution, luminescent cerium-doped YAG:Ce³⁺ 3D microstructures using sol–gel synthesis combined with multiphoton laser lithography and controlled annealing. The process yields single-phase crystalline architectures with sub-micrometer features (≈0.48 µm) and isotropic shrinkage while preserving geometry. Structural and optical analysis confirms phase purity and strong emission at 558 nm, with optimal performance at 2 mol% Ce³⁺, enabling applications in photonic and optoelectronic microsystems.

Precise shaping of three-dimensional vector fields inside enclosed optical cavities has long been a critical unresolved bottleneck in modern photonics, essential for super-resolution imaging, nanolasers and advanced quantum photonic technologies. To address this, scientists in China invented a novel full-space adjoint-enabled freeform meta-optics framework, realizing 5-fold imaging fidelity enhancement while retaining λ/5 optical super-resolution. This technique opens new avenues for cutting-edge nanophotonics, topological photonics and quantum optics applications.

Researchers developed a KRAS-driven mouse model of sporadic brain arteriovenous malformation and identified thalidomide as a candidate therapy. In mice, thalidomide improved survival, reduced lesion growth, and stabilized abnormal vessels. In a proof-of-concept clinical study, most evaluable patients showed stable or regressed lesions.

Efficient electrochemical nitrate reduction to ammonia requires not only active catalysts, but also precise control over active hydrogen utilization under industrial operating conditions. By introducing cerium into Cu₂O, we constructed Cu⁰-Cu⁺ and Cu-O-Ce dual active sites, enabling the regulation of hydrogen transfer pathways and suppressing the competing hydrogen evolution reaction to promote the selective nitrate-to-ammonia conversion.