Methane emissions from the riverine sandy wetlands on the Mongolia Plateau.

Methane (CH) processes and fluxes have been widely investigated in low-latitude tropical wetlands and high-latitude boreal peatlands. In the mid-latitude Mongolia Plateau, however, CH processes and fluxes have been less studied, particularly in riverine wetlands. In this study, in situ experiments were conducted in the riverine sandy wetlands of the Mongolia Plateau to gain a better understanding of CH emissions and their influencing mechanisms.

Glycyrrhizic acid-based multifunctional nanoplatform for tumor microenvironment regulation.

Natural compounds demonstrate unique therapeutic advantages for cancer treatment, primarily through direct tumor suppression or interference with the tumor microenvironment (TME). Glycyrrhizic acid (GL), a bioactive ingredient derived from the medicinal herb Glycyrrhiza uralensis Fisch., and its sapogenin glycyrrhetinic acid (GA), have been recognized for their ability to inhibit angiogenesis and remodel the TME.

Anti-Candida albicans effect and mechanism of Pachysandra axillaris Franch.

Ethnopharmacological Relevance: Pachysandra axillaris Franch., a traditional herbal medicine in Yunnan, has been used to treat traumatic injuries and stomach ailments, some of which were related to microbial infections in conventional applications, but, to the best of our knowledge, the antifungal bioactivity of this plant and its main antifungal components have not been previously reported.

Aim Of The Study: To identify the antifungal compounds of P.

Impacts of anthropogenic disturbances on antibiotic resistomes in biological soil crusts on the Qinghai-Tibetan Plateau.

Biological soil crusts (BSCs) are the main landscape on the Qinghai-Tibetan Plateau and an ecological indicator of human disturbance. Information about antibiotic resistomes in BSCs on the Qinghai-Tibetan Plateau can provide baseline for the risk assessment and management of resistomes and yet to be explored. This work investigated the profiles and geographic patterns of antibiotic resistomes in BSCs along the Lhasa River and their response to anthropogenic activities for the first time.

Two sides of the same coin: Weathering differences of plastic fragments in coastal environments around the globe.

Plastic debris in coastal environments usually undergoes weathering due to various environmental conditions. However, the weathering effects on exposed and shaded sides of the same plastics are underexplored. In this study, 1573 plastic fragments were collected from 15 coastal sites worldwide between December 2021 and December 2022, and weathering experiments were conducted outdoors.

Local inventories for effective management of alien species: insights from the alien flora of Jammu, Kashmir, and Ladakh, India.

The broad-scale inventories of alien species reveal macroecological patterns, but these often fall short in guiding local-level management strategies. Local authorities, tasked with on-the-ground management, require precise knowledge of the occurrence of invasive species tailored to their jurisdictional boundaries. What proves critical at the local scale may not hold the same significance at national or regional levels.

ConoDL: a deep learning framework for rapid generation and prediction of conotoxins.

Conotoxins, being small disulfide-rich and bioactive peptides, manifest notable pharmacological potential and find extensive applications. However, the exploration of conotoxins' vast molecular space using traditional methods is severely limited, necessitating the urgent need of developing novel approaches. Recently, deep learning (DL)-based methods have advanced to the molecular generation of proteins and peptides.

Corrosion Characteristics of Typical Gangue Minerals in Biometallurgical Systems.

Electrochemical and shake flask tests were used to examine the corrosion characteristics of typical gangue minerals in biometallurgical systems and their impact on microbial communities. The results show that the solubility order of the three gangue minerals is feldspar, mica, and quartz in descending order. Their corrosion processes are mainly controlled by cathodic electron-donating processes.

Decadal Response of Atmospheric Inorganic Nitrogen Dry Deposition into Offshore Areas to Policy Controls and Environmental Significance.

Accurately assessing the dry deposition fluxes of inorganic nitrogen aerosol (aerosol-IN) is crucial for mitigating the ecological damage caused by excessive nitrogen in oceanic equilibria. We developed a dry deposition model to assess the dry deposition fluxes of aerosol-IN into Chinese offshore areas over a decade, with the range of 2.81 × 10-1.

Design, Synthesis, and Fungicidal Activity of α-Methylene-γ-Butyrolactone Derivatives Bearing a Diphenyl Ether Moiety.

The γ-butyrolactone scaffold, commonly present in natural products and bioactive compounds, has played a crucial role in the development of novel pesticides. In this study, a series of α-methylene-γ-butyrolactone derivatives containing a diphenyl ether moiety were designed and synthesized using the scaffold splicing strategy. Bioassays revealed that several target compounds demonstrated potent fungicidal activities, particularly against and .

Spatiotemporal distributions, co-occurrence networks, and assembly mechanisms of the bacterial community in sediments of the Yangtze River: comprehensive insights into abundant and rare taxa.

Sediments are key reservoirs for rare bacterial biospheres that provide broad ecological services and resilience in riverine ecosystems. Compared with planktons, there is a lack of knowledge regarding the ecological differences between abundant and rare taxa in benthic bacteria along a large river. Here, we offer comprehensive insights into the spatiotemporal distributions, co-occurrence networks, and assembly processes of three divided categories namely always rare taxa (ART), conditionally rare taxa (CRT), and conditionally rare and abundant taxa (CRAT) in sediments covering a distance of 4,300 km in the Yangtze River.

Optimization of Ultrasound Extraction of Total Anthocyanin From Rupr. by Response Surface Methodology and Its Antihypertensive Effect.

Rupr. is a berry fruit shrub found in the north-western region of China, locally its fruit is consumed as a tea ingredient a part of the daily diet, for treatment of different diseases like eczema, and for cardiovascular care as a traditional remedy. In the current study, an optimized ultrasound-assisted extraction (UAE) method is developed using response surface methodology (RSM) to extract anthocyanins from the fruit.

The complete chloroplast genomes and comparative study of the two tung trees of Vernicia (Euphorbiaceae).

Background: Vernicia montana and V. fordii are economically important woody oil species in the Euphorbiaceae that have great industrial oil and ornamental greening properties, however, the wild resources of Vernicia trees have been reduced because of their habitat destruction. Considering the diverse economic and ecological importance of Vernicia species, it is important to collect more molecular data to determine the genetic differences between V.

Barriers and Facilitators Toward Disaster Knowledge, Skills, and Preparedness among Emergency Medical Services in Saudi Arabia.

Introduction: Disasters pose significant challenges globally, affecting millions of people annually. In Saudi Arabia, floods constitute a prevalent natural disaster, underscoring the necessity for effective disaster preparedness among Emergency Medical Services (EMS) workers. Despite their critical role in disaster response, research on disaster preparedness among EMS workers in Saudi Arabia is limited.

[Construction of Key Technology System for Mine Ecological Restoration Under System Perspective].

Mine ecological restoration has experienced a long-term development process in China, in which various technologies have been constantly developing and integrating. Based on the related theoretical research and field program, the technical system of mine ecological restoration was constructed, and the characteristics of key technologies were specifically grasped. In this research, the environment, including natural elements and the spatial environment, is the object of mine ecological restoration, which requires further long-term investigation and monitoring.

[Characteristics, Health Risks, and Source Analysis of Heavy Metal Pollution in Surface Soil in Shanxian County].

Soil heavy metal （HM） pollution is a prominent global environmental problem. Understanding the risk characteristics and quantitative analysis of potential sources of soil HM pollution is of great significance for accurate prevention and control, scientific management, and safe utilization of soil resources. In the surface soil of Shanxian County, the contents of eight HMs, such as As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn, were collected and identified in 330 surface soil samples.

[Carbon Emission Analysis and Carbon Reduction Strategy of Small and Medium-scale Municipal Wastewater Treatment Plants in Cities and Towns].

The carbon emissions of three typical processes （AAO, MSBR, and oxidation ditch） were systematically analyzed from the perspective of the whole wastewater treatment process based on the annual data of eleven urban small and medium-scale WWTPs in the year 2022, and the effects of different influent characteristics （TP, TN, BOD, COD, influent volume, and COD/TN） on the carbon emissions were studied by using the partial least squares structural equation modeling （PLS-SEM） method. The results showed that indirect carbon emissions dominated the total carbon emissions of small and medium-scale WWTPs （69.5%）, and carbon emissions from electricity consumption were the largest source （43.

[Regional Differences and Spatial Spillover Effects of Urban Carbon Emission Efficiency in Yangtze River Delta, China].

Based on the super-efficiency SBM model with unexpected output, this study calculated the urban carbon emission efficiency in order to study the regional differences and spatial spillover effects of urban carbon emission efficiency in the Yangtze River Delta. From 2001 to 2020, the highest average of urban carbon emission efficiency in the Yangtze River Delta was only 0.698, with a low overall level and a flat "Inverted-U" evolution trend.

Crude Oil-Induced Reproductive Disorders in Male Goldfish: Testicular Histopathology, Sex Steroid Hormones, and Sperm Swimming Kinematics.

Crude oil contamination has been shown to impair reproduction in aquatic animals through carcinogenic and genotoxic properties. Here, we assessed the endocrine-disrupting function of crude oil on male reproductive system based on testicular histology, sex steroid hormones, and fertility endpoints in adult male goldfish (Carassius auratus), which were exposed to 0.02- to 2-mg/L crude oil for 21 days (Experiment #1) or to 5- to 250-mg/L crude oil for 9 days (Experiment #2).

Elucidating the impact of mulching film on organic carbon mineralization from the perspective of aggregate level.

Plastic films mulching, a management strategy designed to boost agricultural productivity, significantly impacts soil fertility and the turnover of soil organic carbon (SOC). Aggregates in the soil play a crucial role in this SOC cycling. Yet, the effect of mulching on the changes in organic carbon components and the mineralization at the aggregate scale is still not well understood.

Trivariate risk assessment to unlock priorities in agriculture-dominated semi-arid region.

This study provides crucial insights into sustainable water resource management in an agriculture-dominated, water-scarce region. The long-term hydrologic potential of the Purna sub-catchment (in India) was simulated using the Soil and Water Assessment Tool (SWAT) under a multimetric calibration approach. A comprehensive evaluation of the SWAT-simulated streamflows, incorporating graphical and quantitative assessments (i.

Identification of natural and anthropogenic factors in the spatial pattern of Pb in the surface soil of the Nanliu River Basin.

The identification of source in potentially toxic elements (PTEs) in watershed soils is crucial for environmental management. This study addresses the knowledge gap in understanding the combined influence of natural and anthropogenic factors on the spatial pattern of lead (Pb) in the surface soil of the Nanliu River Basin. The main objective was to identify and quantify these influences using an integrated approach of ANOVA, correlation analysis, IDW interpolation, and Local Moran's I.

Evaluating the impact of Bt rice straw return on Eisenia fetida: AHP analysis, biomarkers, and Bt protein fate.

A 90-d laboratory experiment was carried out using Bacillus thuringiensis (Bt) rice straws (BTTY and GK775) and non-Bt rice straws (MXZ2, HH1179, and HH38). The objective was to investigate the differences in the effects of Bt and non-Bt rice straws on the earthworm Eisenia fetida. The analytic hierarchy process was applied to assess the risk of returning rice straw to soil on E.

Regionally differentiated responses of chlorophyll-a concentrations to reduced human activity during COVID-19 lockdown in the San Francisco Bay area.

The COVID-19 lockdown created a unique opportunity to study the impact of reduced human activities on water quality. This study aimed to explore how changes in human activities, specifically reduced traffic emissions, influenced water quality in the San Francisco Bay Area from 2019 to 2021. Using chlorophyll-a (Chl-a) concentration as an indicator of water quality and NO₂ concentration as a proxy for traffic emissions, we analyzed the effects of reduced emissions on water quality across different regions of the Bay.