This article presents a comprehensive review of China's policy system for the management natural hazard-induced disasters from 1949 to 2016 through quantitative bibliometric analysis 5472 documents on such disasters. It identifies four phases evolving disaster system, which focused agriculture, economic development, government and professional capacity building, governance, respectively. Characteristics policies contributing factors change in each are discussed depth. provides foundation...

Current DNA storage schemes lack flexibility and consistency in processing highly redundant correlated image data, resulting low sequence stability reconstruction rates. Therefore, according to the characteristics of storage, this paper proposes storing images via base128 encoding (DNA-base128). In data writing stage, segmentation probability statistics are carried out, then, block frequency constraint set associated with achieving encoding. When needs be recovered, DNA-base128 completes...

Abstract Background DNA storage has the advantages of large capacity, long-term stability, and low power consumption relative to other mediums, making it a promising new medium for multimedia information such as images. However, coding density weak error correction ability. Results To achieve more efficient image reconstruction, we propose DNA-QLC (QRes-VAE Levenshtein code (LC)), which uses quantized ResNet VAE (QRes-VAE) model LC compression sequence correction, thus improving both...

Dynamic vision sensors (DVS) are bio-inspired devices that capture visual information in the form of asynchronous events, which encode changes pixel intensity with high temporal resolution and low latency. These events provide rich motion cues can be exploited for various computer tasks, such as action recognition. However, most existing DVS-based recognition methods lose during data transformation or suffer from noise outliers caused by sensor imperfections environmental factors. To address...

Molecular circuits are essential tools for biosensing and molecular information processing. However, the long-distance reversible transmission of orthogonal signals remains a significant challenge in circuits, preventing from achieving similar to that electrical wires. To overcome limitations unidirectional signal facilitate integration antagonistic circuits. We propose architecture (RSTA) with wire-like characteristics achieve based on fundamental devices known as fan-out (RSFDs). The...

Little information exists about exposures to volatile organic compounds (VOCs) in early childhood education (ECE) environments. We measured 38 VOCs single-day air samples collected 2010-2011 from 34 ECE facilities serving California children and evaluated potential health risks. also examined unknown peaks the GC/MS chromatographs for indoor identified 119 of these using mass spectral libraries. found cleaning personal care products had highest concentrations (d-limonene...

We estimated China's clean air policies could ensure majority population lives below 35μg m⁻³, avoiding ∼95.0 thousand premature deaths in 2030.

Abstract Assembled gold nanoparticle (AuNP) superstructures can generate unique physicochemical characteristics and be used in various applications, thus becoming an attractive research field. Recently, several DNA‐assisted assembly methods have been rigorously developed that typically require a non‐catalytic equimolar molecular to guarantee the designed assembly. Although efficient accurate, exploring such assemblies complex cellular milieu under low trigger concentrations remains...

UAV aerial images of insulators have problems such as complex backgrounds, small targets, and obscured resulting in low detection accuracy insulator targets. In order to solve the above problems, a HRD-YOLOX(Hybrid Attention Mechanisms, Regularization, Depth Separable Convolution for YOLOX) algorithm suitable recognizing detecting defects is proposed based on YOLOX network. First, hybrid attention module HAM-CSP(Communication Sequential Processes Hybrid Mechanisms) incorporated into feature...

The normally open/closed switching strategy was proposed to build molecular circuits with the function of time response, time-delay relay, and digital square root operations.

Abstract Diversified molecular information‐processing methods have significant implications for nanoscale manipulation and control, monitoring disease diagnosis of organisms, direct intervention in biological activities. However, as an effective approach implementing multifunctional information processing, DNA reaction networks (DRNs) with numerous functionally specialized structures challenged them on scale design, leading to increased network complexity, further causing problems such...

The construction of logic circuits is critical to DNA computing. Simple and effective scalability methods have been the focus attention in various fields related constructing circuits. We propose a double-stranded separation (DSS) strategy facilitate complex combines toehold-mediated strand displacement with exonuclease III (Exo III), which multifunctional nuclease. Exo can quickly recognize an apurinic/apyrimidinic (AP) site. oligos AP site generate output signal by reaction. However,...

For real-time scene parsing tasks, capturing multi-scale semantic features and performing effective feature fusion is crucial. However, many existing solutions ignore stripe-shaped things like poles, traffic lights are so computationally expensive that cannot meet the high requirements. This article presents a novel model, Multi-Attention Class Feature Augmentation Network (MCFNet) to address this challenge. MCFNet designed capture long-range dependencies across different scales with low...

DNA circuits are important fundamental tools for performing temporal logic operations with complex structures, but they lack sequence orthogonality. Here, we developed a simple and orthogonal hairpin exonuclease assistance signal (H-EAST) architecture to construct domino time-delay characteristics operations, which has potential applications in biomolecular computing.

Molecular circuits, as an effective strategy for implementing artificial biochemical networks, have been widely constructed to process molecular-level information tasks both

Temporal logic circuit implementation using a dual inhibition mechanism based on DNA strand displacement and optimization through incorporating an annihilation mechanism.

Abstract Background Air pollutants, particularly fine particulate matters ( PM 2.5 ) have been associated with mental disorder such as depression. Clean air policy (CAP, i . e ., a series of emission-control actions) has shown to reduce the public health burden pollutions. There were few studies on effects CAP health, particularly, in low-income and middle-income countries (LMICs). We investigated association between stringent depressive symptoms among general adults China. Methods used...