Copper-based nanoparticles against microbial infections.

Drug-resistant bacteria and highly infectious viruses are among the major global threats affecting the human health. There is an immediate need for novel strategies to tackle this challenge. Copper-based nanoparticles (CBNPs) have exhibited a broad antimicrobial capacity and are receiving increasing attention in this context.

[Estimation of the consumption level of four drugs in Beijing using wastewater-based epidemiology].

To estimate the consumption level of four drugs in Beijing using wastewater-based epidemiology (WBE). The primary sludge from one large wastewater treatment plants (WWTPs) was collected in Beijing from July 2020 to February 2021. The concentrations of codeine, methadone, ketamine and morphine in the sludge were detected through solid-phase extraction-liquid chromatography-tandem mass spectrometry.

Overview of PM and health outcomes: Focusing on components, sources, and pollutant mixture co-exposure.

PM varies in source and composition over time and space as a complicated mixture. Consequently, the health effects caused by PM varies significantly over time and generally exhibit significant regional variations. According to numerous studies, a notable relationship exists between PM and the occurrence of many diseases, such as respiratory, cardiovascular, and nervous system diseases, as well as cancer.

Refined assessment and decomposition analysis of carbon emissions in high-energy intensive industrial sectors in China.

Carbon emissions from high-energy intensive industrial sectors are the focus of this study due to the huge energy consumption of these sectors. A refined carbon emission inventory of Chinese high-energy intensive industrial sectors in 2020 was first developed at the point source level. The results showed that coal-fired power plants (CFPPs) were the leading contributors to carbon emissions, followed by iron and steel smelting (ISS) and cement production (CMP).

Effects of differential regional PM induced hepatic steatosis and underlying mechanism.

Emerging evidence suggests that exposure to PM is associated with a high risk of nonalcoholic fatty liver disease (NAFLD). NAFLD is typically characterised by hepatic steatosis. However, the underlying mechanisms and critical components of PM-induced hepatic steatosis remain to be elucidated.

Application of loofah and insects in a bio-trickling filter to relieve clogging.

Bio-trickling filters (BTFs) use an inert filler to purify pollutants making them prone to clogging due to bacterial accumulation. To investigate the performance of a non-inert filler in BTF and its cooperation with insects to relieve clogging, a vertical BTF was constructed with a loofah/Pall ring/polydimethylsiloxane composite filler and selected bacteria to purify toluene. The BTF was started up within 17 d and restarted within 3 d after starvation for 12-16 d.

Distribution, chemical fractionation, and potential environmental risks of Hg, Cr, Cd, Pb, and As in wastes from ultra-low emission coal-fired industrial boilers in China.

This study conducted a comprehensive investigation of the distribution, chemical fractionation, and potential environmental risks of Hg, Cd, Cr, Pb, and As in waste based on new data from five ultra-low emission (ULE) coal-fired industrial boilers (CFIBs). The results showed that fly ash was enriched with Cd, Pb, As, and Hg, while its Cr contents were not invariably higher than those of slag. Fly ash was the predominant output flow for Hg, Cd, Cr, Pb, and As in the tested ULE boilers, with higher proportions of HTEs in the fly ash and lower proportions of HTEs in the flue gas than in the non-ULE boilers.

The role of the gut microbiota in depressive-like behavior induced by chlorpyrifos in mice.

Chlorpyrifos (CPF) is associated with depression, cognitive dysfunction, and other neurological disorders. Increasing evidence has suggested that the gut microbiota plays a vital role in regulating the development of depression. However, it is unknown whether gut microbiota is associated with CPF-related depression.

The Scenario Construction and Evolution Method of Casualties in Liquid Ammonia Leakage Based on Bayesian Network.

In China, food-freezing plants that use liquid ammonia, which were established in the suburbs in the 1970s, are being surrounded by urban built-up areas as urbanization progresses. These plants lead to extremely serious casualties in the event of a liquid ammonia leakage. The purpose of this thesis was to explore the key factors of personnel protection failure through the scenario evolution analysis of liquid ammonia leakage.

The Influence Mechanism of Political Skill on Safety Voice Behavior in High-Risk Industries: The Mediating Role of Voice Efficacy.

As an important indicator to measure the adaptability and development potential of individuals in an organization, political skill is rarely considered as an antecedent variable in the field of safety voice. This study is based on impression management theory and social cognitive theory. From the perspective of employee self-service-oriented safety voice motivation, we took political skill as a predictor of safety voice behavior and introduced voice efficacy as an intermediary variable to construct a theoretical model of the relationship between political skill, voice efficacy, and safety voice behavior.

Neurologic symptoms among solar greenhouse workers and field workers in China.

It has been widely reported that the farmers were at increased risk of neurologic disorders, which probably be related with agricultural risk factors. The intensity of agricultural risk factors was rather high in the solar greenhouse than those in the agricultural farm, while the risk and prevalence of neurologic symptoms among solar greenhouse workers are unclear, which may provide evidence of neurologic dysfunction before clinically measurable signs are evident. This study aimed to evaluate the association among solar greenhouse working, field working, and neurologic symptoms.

The Mediation Role of Safety Attitude in the Impact of Resilience on the Safety Behavior of Coal Miners in China.

Resilience can improve the adaptability of coal miners to high-hazard and high-stress environments. After facing setbacks or adversities, resilience can enable coal miners to recover from bad mental states and have an optimistic safety attitude and positive safety behaviors. However, how resilience affects safety behavior and the role of safety attitude in the relationship have not been clear.

How Safety Climate Impacts Safety Voice-Investigating the Mediating Role of Psychological Safety from a Social Cognitive Perspective.

Safety voice has become a popular research topic in the organizational safety field because it helps to prevent accidents. A good safety climate and psychological safety can motivate employees to actively express their ideas about safety, but the specific mechanisms of safety climate and psychological safety, on safety voice, are not yet clear. Based on the "environment-subject cognition-behavior" triadic interaction model of social cognitive theory, this paper explores the relationship between safety climate and safety voice, and the mediating role of psychological safety.

Nano-Calcium Carbonate Affect the Respiratory and Function Through Inducing Oxidative Stress: A Cross-sectional Study Among Occupational Exposure of Workers and a Further Research for Underlying Mechanisms.

Objective: The aim of the study is to investigate whether nano-calcium carbonate (nano-CaCO 3 ) occupational exposure could induce adverse health effects in workers.

Methods: A cross-sectional study was conducted in a nano-CaCO 3 manufacturing plant in China. Then, we have studied the dynamic distribution of nano-CaCO 3 in nude mice and examined the oxidative damage biomarkers of subchronic administrated nano-CaCO 3 on Sprague-Dawley rats.

Increase the Surface PANI Occupancy of Electrospun PMMA/PANI Fibers: Effect of the Electrospinning Parameters on Surface Segregation.

For preparing high-performance electrospun fibers with functional molecules that cannot cross-entangle themselves, such as conductive polymers, promoting the aggregation of functional molecules on the surface by surface segregation is a promising approach. In the present study, electrospun polymethyl methacrylate/polyaniline (PMMA/PANI) fibers were prepared under various conditions, including solution composition, applied voltage, tip-to-collector distance, temperature, humidity, and gas-phase solvent concentration, to examine the effects of the parameters on fiber morphology and surface segregation. The changes in fiber morphology and variations in the intensity of PANI and PMMA's characteristic bands were investigated with scanning electron microscopy (SEM) and Raman spectroscopy.

[Research progress on the occupational health and personal protection of emergency responders].

To meet the requirement from the economy and society, China's emergency rescue has been developing towards specialization and professionalization. The working environment for emergency responders is special accompanying with tremendous challenges and uncertainties. To promote the research on occupational health and personal protection is an important guarantee for the workers in China to realize the goal of "decent work".

Facile Hydrothermal Synthesis of SnO Nanoflowers for Low-Concentration Formaldehyde Detection.

In this work, SnO nanoflowers were prepared by a simple one-step hydrothermal process. The morphology and structure of SnO nanoflowers were characterized by SEM, TEM, Raman spectroscopy, and XRD, which demonstrated the good crystallinity of the SnO tetrahedron structure of the as-synthesized materials. In addition, the sensing properties of SnO nanoflowers were studied in detail.

Evaluation of Typical Volatile Organic Compounds Levels in New Vehicles under Static and Driving Conditions.

In modern societies, the air quality in vehicles has received extensive attention because a lot of time is spent within the indoor air compartment of vehicles. In order to further understand the level of air quality under different conditions in new vehicles, the vehicle interior air quality (VIAQ) in new vehicles with three different brands was investigated under static and driving conditions, respectively. Air sampling and analysis are conducted under the requirement of HJ/T 400-2007.

Ultralow detection limit and ultrafast response/recovery of the H gas sensor based on Pd-doped rGO/ZnO-SnO from hydrothermal synthesis.

Hydrogen (H) sensors are of great significance in hydrogen energy development and hydrogen safety monitoring. However, achieving fast and effective detection of low concentrations of hydrogen is a key problem to be solved in hydrogen sensing. In this work, we combined the excellent gas sensing properties of tin(IV) oxide (SnO) and zinc oxide (ZnO) with the outstanding electrical properties of reduced graphene oxide (rGO) and prepared palladium (Pd)-doped rGO/ZnO-SnO nanocomposites by a hydrothermal method.

Associations of organophosphate metabolites with thyroid hormone and antibody levels: findings from U.S. National Health and Nutrition Examination Survey (NHANES).

Studies have shown that organophosphate pesticides (OPs) exposure may disrupt thyroid endocrine functions in animal models, agricultural population, occupational workers, and work-related population. However, the relationships between OPs exposure and thyroid hormone levels in the general population are unclear. This study aimed to explore the relationships of OPs exposure with thyroid hormone and antibody levels in the general population.

Chronic kidney disease among greenhouse workers and field workers in China.

Background: Agricultural workers are at increased risk of developing chronic kidney disease of non-traditional etiology (CKDnt). The environment in solar greenhouse has high-intensity agricultural hazard factors. However, the association between solar greenhouse work and CKDnt remains unknown.

Effects of Benzo[a]pyrene-DNA adducts, dietary vitamins, folate, and carotene intakes on preterm birth: a nested case-control study from the birth cohort in China.

Background: Polycyclic aromatic hydrocarbons (PAHs) and its DNA adducts has been suggested to increase the risk of preterm birth (PB). Yet, few studies have been conducted to investigate this association, and the role of dietary nutrients intakes including vitamins, folate, and carotene during pre- and post-conception on this association has not been studied.

Methods: Building upon a birth cohort in Taiyuan China, we conducted a nested case control study including 83 PB and 82 term births.

Parabacteroides pekinense sp. nov.: a new bacterium isolated from the stool of a healthy man living in China.

Strain Quantibio-BCGUT is a new species from the genus Parabacteroides that was isolated from a stool sample of a 49-year-old healthy Chinese male adult. Cells are Gram-negative and obligate anerobic bacilli. Strain Quantibio-BCGUT exhibits 95.