A Spatial-Temporal Multi-Feature Network (STMF-Net) for Skeleton-Based Construction Worker Action Recognition.

Globally, monitoring productivity, occupational health, and safety of construction workers has long been a significant concern. To address this issue, there is an urgent need for efficient methods to continuously monitor construction sites and recognize workers' actions in a timely manner. Recently, advances in electronic technology and pose estimation algorithms have made it easier to obtain skeleton and joint trajectories of human bodies.

Synergistic atmospheric influence on the co-pyrolysis of antibiotic sludge and waste bicycle tires: Optimal drivers, products, and pathways.

Effective management of antibiotic sludge (AS) is essential for disease prevention. This study investigated the co-pyrolysis of AS with polyurethane (PU) and rubber tires (RT), focusing on its key drivers, synergies, resulting products, and atmospheric (N versus CO) dependency. Composite pyrolysis index indicated superior co-pyrolysis properties of AS with PU or RT in the CO atmosphere compared with those in the N atmosphere.

Active trans-corneal drug delivery with ocular adhesive micelles for efficient glaucoma therapy.

Efficient and noninvasive drug delivery for glaucoma therapy necessitates prolonged retention on the ocular surface and deep penetration into the cornea. However, inherent physiological defenses such as rapid tear clearance and low cornea permeability present significant challenges that hinder the effectiveness of trans-corneal drug delivery. In this study, we demonstrate the potential of zwitterionic micelles composed of poly(2-(N-oxide-N,N-diethylamino)ethyl methacrylate)-block-poly(ε-caprolactone) (OPDEA-PCL) amphiphiles as a biocompatible carrier for trans-corneal drug delivery.

A spatial source-oriented and probability-based risk-assessment framework for heavy metal and PAH contamination of urban soils in Guangzhou, China.

The identification and quantification of high-risk hotspots for soils contaminated by heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs) remains a challenge due to their various sources and heterogeneous sink properties in urban soil systems. In this study of 221 soil samples from Guangzhou, China, a novel framework combining Bivariate local Moran's I (BLMI), positive matrix factorization (PMF), human health risk (HHR) assessment, Monte Carlo simulation (MCS), and a newly developed spatial risk model were proposed to conduct probabilistic source-oriented HHR assessment, high-risk hotspot quantification, and risk formation mechanism elaboration. Study results indicate that traffic emissions are the largest contributor of HMs (47.

Towards superior CORR catalysts: Deciphering the selectivity puzzle over dual-atom catalyst.

The electrocatalytic CO reduction reaction (CORR) is one of the most important electrocatalytic reactions. Starting from a well-defined *CO intermediate, the CORR can bifurcate into two pathways, either forming a hydrogenation product by *CO bond hydrogenation or leading to CO desorption by *C bond cleavage. However, it is perplexing why many dual-atom catalysts (DACs) exhibit high CO selectivity in experiments, despite previous theoretical studies arguing that the *CO bond hydrogenation is thermodynamically more favorable than the *C bond breaking.

Virulence and molecular epidemiological analysis of three human blood-borne .

Objective: To understand the virulence genes and molecular epidemiological characteristics of human-infected strains of in Rui'an, Zhejiang Province, from 2021 to 2022, and to provide a scientific basis for diagnosis, treatment, prevention, and control.

Methods: Three blood-borne strains of were analysed by morphological observation, identification, and drug sensitivity tests. We performed polymerase chain reaction (PCR) amplification of their main seven virulence factors and housekeeping genes.

Elucidating the intrinsic relationship between redox properties of CeO2 and CH4 oxidation activity: A theoretical perspective.

Methane (CH4) oxidation is an important reaction to reduce the greenhouse effect caused by incomplete combustion of CH4. Here, we explored the mechanism of CH4 oxidation catalyzed by CeO2 and Ni-doped CeO2, focusing on the redox properties of these catalyst surfaces, using density functional theory (DFT). We found that the barriers for CH4* activation and H2O* formation are correlated with the surface redox capacity, which is enhanced by Ni doping.

Study of Self-Locking Structure Based on Surface Microstructure of Dung Beetle Leg Joint.

Dung beetle leg joints exhibit a remarkable capacity to support substantial loads, which is a capability significantly influenced by their surface microstructure. The exploration of biomimetic designs inspired by the surface microstructure of these joints holds potential for the development of efficient self-locking structures. However, there is a notable absence of research focused on the surface microstructure of dung beetle leg joints.

Bionic Design of High-Performance Joints: Differences in Failure Mechanisms Caused by the Different Structures of Beetle Femur-Tibial Joints.

Beetle femur-tibial joints can bear large loads, and the joint structure plays a crucial role. Differences in living habits will lead to differences in femur-tibial joint structure, resulting in different mechanical properties. Here, we determined the structural characteristics of the femur-tibial joints of three species of beetles with different living habits.

Regulating Peripheral Nitrogen Dopants in Single-Atom Catalysts to Enhance Propane Dehydrogenation.

For single-atom catalysts (SACs), the dopants situated near the metal site have demonstrated a significant impact on the catalytic properties. However, the effect of dopants situated further away from the metal centers and their working mechanisms remain to be elucidated. Herein, we conduct density functional theory-driven studies on regulating the peripheral nitrogen dopants in graphene-based SACs, with a particular focus on Ir SAC, for propane dehydrogenation (PDH).

Selective Agonism of Liver and Gut FXR Prevents Cholestasis and Intestinal Atrophy in Parenterally Fed Neonatal Pigs.

Background & Aims: We aimed to investigate the relative efficacy of feeding different bile acids in preventing PNALD in neonatal pigs.

Methods: Newborn pigs given total parenteral nutrition (TPN) combined with minimal enteral feeding of chenodeoxycholic acid (CDCA), or increasing doses of obeticholic acid (OCA) for 19 days.

Results: Enteral OCA (5 and 15 mg/kg), but not CDCA (30 mg/kg) reduced blood cholestasis markers compared to TPN controls and increased bile acids in the gallbladder and intestine.

Knockout of TNF-α in microglia decreases ferroptosis and convert microglia phenotype after spinal cord injury.

Spinal cord injury (SCI) is a serious and difficult to treat traumatic disease of the central nervous system. Spinal cord injury causes a variety of detrimental effects, including neuroinflammation and ferroptosis, leading to chronic functional impairment and death. Recent studies have shown that microglia/macrophages (M/Ms) at the injury site remain primarily in the pro-inflammatory state, which is detrimental to recovery.

Remote-controlled dexamethasone-duration on eye-surface with a micelle-magnetic nanoparticulate co-delivery system for dry eye disease.

Dexamethasone (DEX) is used to treat ocular surface diseases. However, regulating DEX duration in tears while preventing its absorption into the anterior chamber is critical for balancing its therapy effects and the side effects. In this study, a novel magnetic nanoparticle (MNP)-micelle (MC) co-delivery system (MMDS) was developed.

Electrolyte-Assisted Structure Reconstruction Optimization of Sn-Zn Hybrid Oxide Boosts the Electrochemical CO-to-HCOO Conversion.

Electrolyte plays crucial roles in electrochemical CO reduction reaction (e-CORR), yet how it affects the e-CORR performance still being unclarified. In this work, it is reported that Sn-Zn hybrid oxide enables excellent CO-to-HCOO conversion in KHCO with a HCOO Faraday efficiency ≈89%, a yield rate ≈0.58 mmol cm h and a stability up to ≈60 h at -0.

Tuning the Inter-Metal Interaction between Ni and Fe Atoms in Dual-Atom Catalysts to Boost CO Electroreduction.

Dual-atom catalysts (DACs) are promising for applications in electrochemical CO reduction due to the enhanced flexibility of the catalytic sites and the synergistic effect between dual atoms. However, precisely controlling the atomic distance and identifying the dual-atom configuration of DACs to optimize the catalytic performance remains a challenge. Here, the Ni and Fe atomic pairs were constructed on nitrogen-doped carbon support in three different configurations: NiFe-isolate, NiFe-N bridge, and NiFe-bonding.