Intrinsic dispersion in periodic systems sets a fundamental bound for independent selectivity of resonant angles and wavelengths. This hinders applications requiring concurrent selectivity of angles and wavelengths, such as AR/VR, coherent thermal emission and light detection. Scientists in China proposed a method to on-demand tailor the angle-dependent resonant reflection via radiation directionality in misaligned bilayer metagratings. This strategy enables perfect reflection at a single angle and a single wavelength, overcoming the intrinsic dispersion locking.

A recent study published in Engineering investigates the quality and antibiotic resistance risks of livestock probiotics in China. The research reveals issues with labeling accuracy, strain composition, and the presence of antibiotic resistance genes in commercial probiotic products. It highlights the potential for certain probiotic strains to disrupt gut microbiota and serve as reservoirs for antibiotic resistance genes, emphasizing the need for improved regulation and quality control in the livestock probiotics industry.

This article delves into the intricate world of Ganoderma lingzhi (G. lingzhi), a mushroom with profound medicinal significance in traditional Chinese medicine. Researchers have employed advanced multi-omics techniques to map the distribution of ganoderic acids (GAs) and elucidate their biosynthetic pathways within G. lingzhi. The findings of this study offer a detailed understanding of GA biosynthesis, contributing to the potential development of new medicinal applications and optimized cultivation practices.

Researchers conducted comprehensive safety assessments on triazine UV filters ethylhexyl triazone (EHT) and diethylhexyl butamido triazone (HEB). Through bacterial reverse mutation, chromosomal aberration, micronucleus assays, and 3T3 phototoxicity tests, both compounds showed no genotoxic or phototoxic effects even at high concentrations. These findings support the safety of EHT/HEB for topical use in sunscreens, addressing regulatory concerns.

A recent study published in Engineering offers detailed insights into the complex dynamics of metal jets, waves, and bubbles generated during underwater explosions of shaped charges. Researchers from Harbin Engineering University conducted experiments to analyze how different parameters, such as liner angle and charge weight, influence these phenomena. The findings provide a better understanding of the behavior of shaped charges in underwater environments, which is essential for their potential applications.

The researchers discuss ECLDs based on the research framework of “material-process-application” synergistic optimization. It aims to provide a comprehensive reference for the research and application of ECLDs, and demonstrates the great potential in the field of flexible electronics.

A new study published in Engineering offers insights into how global land surface soil organic carbon (SOC) levels are being influenced by climate change. The research explores historical trends and projects future changes in SOC, highlighting the complex interplay of climate factors and vegetation cover. While the findings indicate an overall increase in SOC, they also underscore the limitations of relying solely on natural carbon sinks to meet global carbon neutrality goals. This report provides a balanced view of the challenges and opportunities in leveraging soil carbon sequestration as part of broader climate mitigation strategies.

Can one truly understand what “flower” means without smelling a rose, touching a daisy or walking through a field of wildflowers? This question is at the core of a rich debate in philosophy and cognitive science. While embodied cognition theorists argue that physical, sensory experience is essential to concept formation, studies of the rapidly evolving large language models (LLMs)suggest that language alone can build deep, meaningful representations of the world.

Tumors are often genetic mosaics, harboring diverse cell populations shaped by mutations like copy number variations (CNVs).

Discover how researchers are using Tamm plasmonic photonic crystals and antimony trisulfide to create reconfigurable color displays. This technology enables dynamic color changes across the visible spectrum, offering potential for next-generation displays and optical devices.