Regional PM prediction with hybrid directed graph neural networks and Spatio-temporal fusion of meteorological factors.

Traditional statistical prediction methods on PM often focus on a single temporal or spatial dimension, with limited consideration for regional transport interactions among adjacent cities. To address this limitation, we propose a hybrid directed graph neural network method based on deep learning, which utilizes domain features to quantify the influence of neighboring cities and construct a directed graph. The model comprises a historical feature extraction module and a future transmission prediction module, and each module integrates a Graph Neural Network (GNN) and a Long Short-Term Memory Network (LSTM) for spatiotemporal encoding.

Mechanistic insights into CO reduction to CO by group 5 transition metal monoxide cations.

The reduction of carbon dioxide (CO) by transition-metal oxides in the gas phase serves as a unique model system for understanding transition metal-based catalytic systems in CO utilization. In this work, thermochemistry and reaction mechanisms attributed to the two-state reactivity scenario of CO reduction by group 5 transition metal monoxide cations are extensively investigated using quantum chemical calculations. The interaction between the VO cation with CO exhibits an endothermic feature, whereas the reaction involving the TaO cation showcases a more pronounced exothermic behavior than the NbO cation, in accordance with previously reported reaction rates.

Blueberry Anthocyanin Functionalized CaMoO:Tb Nanophosphors for Dual-Mode pH Sensing.

A series of green phosphors, CaMoO:y%Tb (where y = 0.1, 0.5, 1, 2, 3, 4, and 5) were successfully prepared via hydrothermal synthesis.

A benzofuran-[]-fused BODIPY trimer enabled by dual TBET and PET mechanisms for high-performance two-photon fluorescence imaging.

A benzofuran-[]-fused BODIPY trimer has been efficiently synthesized, featuring a unique structural design that harmoniously integrates TBET (through bond energy transfer) and PET (photo-induced electron transfer) mechanisms. This trimer boasts exceptional optical properties, including a large pseudo-Stokes shift of 100 nm, an impressive fluorescence quantum yield ( = 0.931), an outstandingly high extinction coefficient (182 100 M cm), a remarkable FEF (fluorescence enhancement factors, 22.

Robust single modified divacancy color centers in 4H-SiC under resonant excitation.

Color centers in silicon carbide (SiC) offer exciting possibilities for quantum information processing. However, the challenge of ionization during optical manipulation leads to charge variations, hampering the efficacy of spin-photon interfaces. Recent research predicted that modified divacancy color centers can stabilize their charge states, resisting photoionization.

Towards improved spectroscopic applications in multi-gas environments: CO spectral line parameter measurement and analysis.

The ν + 2ν + ν band of CO is dominated by weak absorption lines near 2.0 uμm, which has potential application in planetary atmosphere, astrophysical, and hydrocarbon fuel combustion investigations. High-quality spectral line parameters are the foundation of spectroscopic technology.

Dual-Vibration-Assisted Charge Transport Through Hexabenzocoronene in Single-Molecule Junctions.

Gaining deep understanding and effective regulation of the charge transport mechanism within molecular junctions is essential for the development of electronic devices. In this work, a series of hexabenzocoronene-based single-molecule junctions are successfully constructed, and their temperature-dependent charge transport properties are studied. It is found that rotational vibrations of both benzene and hexabenzocoronene rings are sequentially excited as the temperature increases, and the electron-vibration coupling enhances charge tunneling.

Incentivizing emission controls toward clean air and carbon neutrality in China: Perspectives from a risk-based approach for air quality management.

Air Quality Standards (AQSs) worldwide have continued to employ concentration-based approaches since their first implementation under the 1970 Clean Air Act in the United States. The primary objective of establishing these AQSs is widely recognized as protecting public health. With the significantly improved understanding of the health risks associated with air pollutants today, it is an opportune time to reassess air pollution management from a fundamental risk perspective.

Colorimetric Thermography by a Long-Infrared Dual-Band Metalens.

Infrared (IR) radiation thermography is extensively utilized in diverse fields due to its non-contact capability. Nevertheless, its effectiveness is often compromised by the significant emissivity variations among different objects, limiting its application to specific setups or focused object types. Colorimetric thermography is introduced as an alternative emissivity-independent method of radiation thermometry.

Imaging, biomarkers, and vascular cognitive impairment in China: Rationale and design for the VICA study.

Introduction: Vascular cognitive impairment (VCI) is highly heterogeneous, with unclear pathogenesis. Individuals with vascular risk factors (VRF), cerebral small vessel disease (CSVD), and stroke are all at risk of developing VCI. To address the growing challenges posed by VCI, the "Vascular, Imaging and Cognition Association of China" (VICA) was established.

Suppressed Nonreciprocal Second-Harmonic Generation of Antiferromagnet MnPSe in the MnPSe/Graphene Heterostructure Due to Interfacial Magnon-Plasmon Coupling.

Interfacial coupling is one of the keys to manipulating magnetic/nonmagnetic two-dimensional (2D) heterostructures for novel functionalities. The MnPSe/graphene heterostructure is a prospective platform for quantum information and metrology. However, how graphene affects MnPSe through interfacial coupling is still poorly understood.

Complementary Superwetting Structures Treated by a Femtosecond Laser for Simultaneous Spontaneous Directional Transport of Water Droplets and Underwater Bubbles.

The control of fluid transport is crucial and has broad applications in the fields of intelligent systems and microfluidics. However, current studies usually focus on the spontaneous directional transport of a single type of fluid or require complex preparation processes. In this paper, the single femtosecond laser direct processing of complementary superwetting structures using polyimide/polytetrafluoroethylene is proposed, for the first time, to realize simultaneous spontaneous directional transport of water droplets and underwater bubbles without any additional energy or chemical treatment.

Transplantation of peripheral nerve tissueoid based on a decellularized optic nerve scaffold to restore rat hindlimb sensory and movement functions.

Peripheral nerve injury (PNI) involving the loss of sensory and movement functions is challenging to repair. Although the gold standard of PNI repair is still the use of autologous nerve grafts, the destruction of the donor side is inevitable. In the present study, peripheral nerve tissueoids (PNTs) composed of a Schwann cell (SC)-based neurotrophin-3 (NT-3) delivery system and a decellularized optic nerve (DON) with naturally oriented channels were engineered to investigate the mechanism of PNTs in nerve regeneration.

Strong Anisotropy and Giant Photothermoelectricity of 1D Alloy NbSeI-Based Photodetector for Ultrabroadband Light-Detection and Encryption Imaging Application.

Securing high-capacity and safe communication holds great potential for ushering in the new era of digital society. In this study, a wide-band photodetector based on the quasi-1D niobium selenide compounds (NbSeI), showing up photothermoelectric (PTE) dominated multiple synergistic effects with high responsivity across a wide wavelength range from deep-ultraviolet (254 nm) to terahertz (0.30 THz), providing an efficient strategy for high-capacity optical processing is introduced.

Quantum Coherence Control at Temperatures up to 1400 K.

Coherent quantum control at high temperatures is important for expanding the quantum world and is useful for applying quantum technologies to realistic environments. Quantum control of spins in diamond has been demonstrated near 1000 K, with the spins polarized and read out at room temperature and controlled at elevated temperatures by rapid heating and cooling. Further increase of the working temperature is challenging due to fast spin relaxation in comparison with the heating and cooling rates.

Using Label-Free Raman Spectroscopy Integrated with Microfluidic Chips to Probe Ferroptosis Networks in Cells.

Ferroptosis, a regulated form of cell death driven by oxidative stress and lipid peroxidation, has emerged as a pivotal research focus with implications across various cellular contexts. In this study, we employed a multifaceted approach, integrating label-free Raman spectroscopy and microfluidics to study the mechanisms underpinning ferroptosis. Our investigations included the ferroptosis initiation based on the changes in the lipid Raman band at 1436 cm under different cellular states, the generation of reactive oxygen species (ROS), lipid peroxidation, DNA damage/repair, and mitochondrial dysfunction.

Iodine Boosted Fluoro-Organic Borate Electrolytes Enabling Fluent Ion-Conductive Solid Electrolyte Interphase for High-Performance Magnesium Metal Batteries.

Rechargeable magnesium batteries are regarded as a promising multi-valent battery system for low-cost and sustainable energy storage applications. Boron-based organic magnesium salts with terminal substituent fluorinated anions (Mg[B(OR)], R=fluorinated alkyl) have exhibited impressive electrochemical stability and oxidative stability. Nevertheless, their deployment is hindered by the complicated synthesis routes and the surface passivation of Mg metal anode.

Global trend analysis, mechanistic insights and future directions of autoimmune ear diseases: Based on comprehensive findings over the past 20 years.

Background: In recent years, Autoimmune diseases (ADs) and hearing loss are both significant public health burdens worldwide. An increasing number of studies are focusing on the potential link between these two diseases and exploring how hearing loss can be prevented and treated in the context of autoimmune diseases. In response to this focus, it is very necessary to conduct bibliometric analysis and molecular mechanism exploration to provide guidance for the exploration of basic mechanisms and clinical management.

Intelligent Diagnosis of Hypopigmented Dermatoses and Intelligent Evaluation of Vitiligo Severity on the Basis of Deep Learning.

Introduction: There is a lack of objective, accurate, and convenient methods for classification diagnostic hypopigmented dermatoses (HD) and severity evaluation of vitiligo. To achieve an accurate and intelligent classification diagnostic model of HD and severity evaluation model of vitiligo using a deep learning-based method.

Methods: A total of 11,483 images from 4744 patients with HD were included in this study.

Early-stage Alzheimer's disease profiling in blood achieved by multiplexing aptamer-SERS biosensors.

Neurological disorders are the second leading cause of death globally, with Alzheimer's disease (AD) emerging as a significant contributor, responsible for 276 million cases in disability-adjusted life years. Conventional diagnostic methods are often invasive, costly, and place a considerable strain on global healthcare systems. In this study, we presented an innovative and efficient strategy for AD assessment through blood profiling using a multiwell glass chip integrated with aptamer-based surface-enhanced Raman scattering (SERS) biosensors.