Efficient management of railway infrastructure is recognized as a cornerstone for the sustainable development of the transport sector, as it plays a critical role in reducing congestion, mitigating environmental pollution, and enhancing mobility. The modernization and optimization of railway systems are essential for the optimal utilization of resources and the advancement of a more competitive and environmentally sustainable sector. Railway infrastructure managers (RIMs) are entrusted with the responsibility of ensuring efficient infrastructure management, maintenance, and modernization, thereby guaranteeing the safety, reliability, and sustainability of railway systems. In this study, a methodological framework was proposed for evaluating the efficiency of RIMs by integrating Pearson’s correlation and the Data Envelopment Analysis (DEA) method. The efficiency evaluation was conducted based on key performance indicators (KPIs) associated with railway infrastructure management. Pearson’s correlation was employed to analyze the relationships among 35 KPIs, while the DEA method was utilized to identify efficient managers. The developed framework offers a novel approach for creating analytical tools tailored to RIMs, providing regulatory bodies and decision-makers with a valuable toolset to implement best practices and enhance competitiveness. The findings of this study have practical implications, enabling performance comparisons, the development of management strategies, and the formulation of policies aimed at fostering a more sustainable and efficient railway industry.
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Open Access
Evaluation of Activated Carbon as an Alternative Treatment for Agrochemical-Contaminated Water in Rural Areaspatricia aline bressiani
, geiciane locatelli alves
, inara giacobbo de marco
, mariana tonello biffi
, sabrina ishikawa
, vilmar steffen
, fernando césar manosso
, eduardo michel vieira gomes
, ticiane sauer pokrywiecki
, ana paula de oliveira schmitz
, elisângela düsman 
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Available online: 12-30-2024
The excessive application of agrochemicals has resulted in significant workplace exposure for agriculturists and environmental interaction for the general public, particularly in communities adjacent to agricultural zones. Such exposure is associated with detrimental health effects, including mutagenic and cytotoxic impacts. Agrochemical contamination frequently occurs through water, especially in rural villages where conventional water treatment systems are not designed to address these specific contaminants. The efficacy of activated carbon was investigated in this study as an adsorbent for the removal of 2,4-dichlorophenoxyacetic acid (2,4-D) from contaminated water. The concentration of 2,4-D in water samples was quantified using ultraviolet-visible (UV-Vis) spectroscopy at a wavelength of 283 nm. Preliminary adsorption experiments identified pH 2 as the optimal condition for 2,4-D uptake. The adsorption kinetics were best described by the Elovich model, with an equilibrium time of 480 minutes. Equilibrium studies revealed that three isotherm models—Redlich-Peterson, Temkin, and Toth—effectively represented the experimental data, with a maximum adsorption capacity of 252.8 mg/g. The findings underscore the potential of activated carbon as a cost-effective and straightforward treatment method for the removal of 2,4-D from drinking water, particularly in rural areas lacking access to advanced water treatment infrastructure.
Municipal solid waste (MSW) management has become an urgent global issue, with incineration emerging as a viable waste-to-energy (WtE) technology. The process of incineration, which involves the combustion of organic compounds in waste, generates municipal solid waste incineration (MSWI) ash, a byproduct with potential applications in soil stabilization. This review explores the use of MSWI ash to enhance the engineering properties of Indian black cotton soil (BCS), a soil type known for its expansive nature and associated challenges in construction. Soil stabilization is a critical process aimed at improving the strength and durability of weak soils for use in civil engineering applications. The review discusses the mineralogical and morphological characteristics of MSWI ash, highlighting its potential to improve the mechanical properties of BCS. The addition of calcium-based additives, including lime and calcium hydroxide, facilitates the stabilization process by interacting with the expansive clay minerals present in the soil. This green technology not only improves the strength characteristics of BCS but also contributes to sustainable construction practices by reducing the demand for conventional building materials, lowering greenhouse gas emissions, and cutting costs. Experimental findings indicate that the optimal improvement in the unconfined compressive strength (UCS) and California bearing ratio (CBR) of BCS is achieved with the incorporation of 25% MSWI ash. Specifically, the UCS increases from 28.8 kPa to 53.4 kPa, and the CBR value rises from 3.38% to 9.38% with the addition of 25% ash. Such enhancements make MSWI ash a promising material for use in the construction of embankments, roads, and sub grade highways, where the improvement of expansive soil characteristics is critical for infrastructure stability.
This study investigates the relationship between financial risk management, corporate social responsibility (CSR), and sustainable development within the petrochemical industry. The research aims to explore the impact of financial risk management practices on CSR initiatives and to assess how these factors collectively contribute to the long-term sustainability of petrochemical companies. A key focus of the study is the role that CSR plays in advancing sustainable development, particularly in sectors facing significant financial and operational risks. The research is applied in nature, offering practical insights for improving risk management strategies in petrochemical corporations. The study sample consisted of 130 experienced managers from the petrochemical industry, selected based on the number of items in the survey questionnaire. The measurement tool used was a researcher-developed questionnaire, which was designed following an extensive review of relevant literature and consultations with subject matter experts. To ensure the validity of the instrument, content validity was assessed, and reliability was confirmed through the calculation of Cronbach's alpha coefficient. Data were analyzed using Partial Least Squares (PLS) software, which revealed significant findings regarding the influence of financial risk management on CSR and sustainable development. The results underscore the crucial role of effective financial risk management in facilitating CSR initiatives and enhancing the sustainability of petrochemical companies. Additionally, CSR was found to positively affect sustainable development, with a particular emphasis on the integration of social activities, product and service innovation, and human resource management practices. It is concluded that prioritizing CSR, along with strategic financial risk management, is essential for achieving long-term sustainability in the petrochemical sector. These findings offer valuable insights for both academic research and industry practice, contributing to the development of more effective risk management frameworks in the context of sustainable development.
Manufacturing industry clusters contribute to the optimization of regional industrial structures and the improvement of economic growth efficiency. The role of inter-county carriers can further enhance the cluster effects of the manufacturing industry in Sichuan Province, promoting coordinated development across industries and accelerating the transformation of new productive forces. This study evaluates the degree of industrial agglomeration of the manufacturing industry in 183 counties in Sichuan Province. The results indicate that Sichuan's manufacturing industry exhibits a clear clustering effect, with a particularly pronounced structural agglomeration centered around Chengdu. However, economic development across counties in the province remains unbalanced. The Generalized Method of Moments (GMM) regression analysis confirms that total factor productivity (TFP) and industrial interlinkages exert a significant positive influence on the agglomeration of the manufacturing industry.
With the growing prominence of environmental issues, sustainable development has become a global consensus. Environmental, social, and governance (ESG) factors have emerged as key focal points for companies and their stakeholders. Using a sample of Chinese A-share listed companies from 2011 to 2022, a comprehensive indicator of attention was constructed from a stakeholder perspective to examine the interactions and mechanisms among ESG quality, attention, and enterprise value. Findings indicate that enhanced ESG performance significantly contributes to increased enterprise value, with attention serving as a critical mediating factor in the relationship between ESG performance and enterprise value. Furthermore, notable differences were observed in this process based on firm ownership, with ESG performance exerting a more substantial impact on enterprise value within state-owned enterprises. These insights offer valuable perspectives for companies on how to leverage improved ESG performance to enhance enterprise value.
This study provides a comprehensive analysis of the intersections between environmental issues, poverty, and the role of new media, including social media, over the period from 2016 to 2022. By conducting a systematic literature review combined with a bibliometric analysis of keyword co-occurrence, insights into the thematic focus and development trends within these domains were offered. Data were extracted from 46 articles indexed in the Scopus database, identified through the search criteria “environment” AND “poverty” OR in titles, abstracts, and keywords that contain the terms “news” AND “media.” Analysis was conducted using VOSviewer v.1.6.18, revealing four prominent research streams within this multidisciplinary intersection: (1) the relationships among population dynamics, poverty, and environmental degradation; (2) examination of factors influencing environmental degradation and the areas most affected; (3) environmental policy frameworks and the processes involved in policy decision-making; and (4) risk mitigation in environmental policy, with a focus on inclusive economic development. This bibliometric analysis contributes to a refined categorization of existing literature and provides a framework for future research trajectories. By tracking the evolution of publications within each identified research stream over the past seven years, four key research questions were proposed to further explore these critical intersections. The findings aim to enhance scholarly understanding of the complex interdependencies among environmental challenges, poverty alleviation, and the transformative impact of media in the digital era.
The rise of advanced digital technologies (ADT) within Industry 4.0 has transformed modern industrial operations, with select industry leaders emerging as pioneers in the integration of these technologies. This has positioned them as benchmarks for companies with limited digital capabilities. The vulnerabilities of Industry 4.0 to external disruptions, including natural disasters such as the earthquakes in Japan and Turkey, the COVID-19 pandemic, and especially the ongoing energy crises, exemplified by the war in Ukraine and sanctions on the Russian Federation, have necessitated a shift in business continuity management (BCM) strategies. Traditionally focused on safeguarding information technologies, BCM now places greater emphasis on ensuring energy independence and reducing reliance on state-controlled critical infrastructure. In response to these risks, enterprises are increasingly adopting resilient production models designed to restore functionality after cyberattacks, solar flares, extended power outages, and internet disruptions. The journey toward energy independence spans from initial recognition of the need for action to the implementation of robust solutions, such as Faraday cages for server protection and off-grid energy systems. While rare a decade ago, energy-independent enterprises are becoming more common, as illustrated by the copper smelter in Sevojno, a pioneering example. The acceleration of energy independence among companies has been driven by a series of crises, prompting significant BCM advancements. Early responses to these threats primarily focused on information technology (IT) disaster management methodologies, but Industry 4.0 discussions have evolved toward risk-resilient production systems. This study explores theoretical approaches to enhancing enterprise resilience to modern energy challenges, offering insight into emerging strategies aimed at safeguarding continuity in an increasingly volatile global landscape.
Water is regarded as the most critical natural resource in Idaho, with drinking water identified as its most essential aspect. To assess public perceptions and evaluations of drinking water quality, a survey instrument was developed and distributed to Idaho residents over the past 35 years. Key areas of focus included the safety of home drinking water, the use of in-home water filters, consumption of bottled water, frequency of water testing, and concerns about potential pollutants. Surveys were administered in 1988, 1993, 1998, 2002, 2005, 2010, 2015, 2018, and 2022, with findings indicating a gradual decline in perceived drinking water safety, from 90.2% in 1988 to 80.2% in 2022. The use of in-home water filtration systems increased significantly, rising from 16.2% in 1988 to 29.7% in 2022, potentially driven by extensive advertising campaigns rather than increased contamination concerns. Bottled water usage peaked at 33% in 2010 but has since declined to less than 11% in 2022, a trend attributed to heightened public awareness of tap water safety and environmental concerns related to plastic waste. No significant long-term patterns in water testing were observed, although rural residents, who rely on private wells, were more likely to test their water due to the absence of regular testing requirements. Hard water (with a high content of Ca and/or Mg) emerged as the primary contaminant identified by respondents, with no other significant pollutants widely reported. These findings offer valuable insights into shifting public perceptions of water quality and the factors influencing household water consumption practices in Idaho over the last three decades.