bluuebunny/crossref_metadata_2025 huggingface dataset:
Identification of Defect Generation Rules among Defects in Construction Projects Using Association Rule Mining
Authors: Park Jungeun , Cha Yongwoon , Al Jassmi Hamad , Han Sangwon , Hyun Chang-taek
Published: May 2020

This study aims to identify the defect generation rules between defects, to support effective defect prevention at construction sites. Numerous studies have been performed to identify the relations between defect causes, to prevent defects in construction projects. However, identifying the inter-causal pattern does not yet guarantee an ultimate grasp of what constitutes proper defect mitigation strategies, unless the underlying defect-to-defect generation rules are thoroughly understood too. Specifically, if a defect generated in a work process is ignored without taking necessary corrective action, then additional defects could be generated in its following works as well. Thus, to minimize defect generation, this study analyzes the defects in the sequence of a construction work. To achieve this, the authors collected 9054 defect data, and association rule mining is used to analyze the rules between the defects. Consequently, 216 rules are identified, and 152 rules are classified into 3 categories along with 4 experts (71 expected rules, 22 unexpected but explainable rules, and 59 unexpected and unexplainable rules). The generation rules between the defects identified in this study are expected to be used to regularize various defect types to determine those that require priority management.
Fear of Non-Employability and of Economic Crisis Increase Workplace Harassment through Lower Organizational Welfare Orientation
Authors: Giorgi Gabriele , León-Perez José M. , Montani Francesco , Fernández-Salinero Samuel , Ortiz-Gómez Mar , Ariza-Montes Antonio , Arcangeli Giulio , Mucci Nicola
Published: May 2020

There is a growing body of evidence suggesting that economic crisis is a preeminent stressor (i.e., economic stress) that may worsen working conditions and expose individuals to negative acts at work (i.e., workplace bullying). Following an occupational health perspective that considers contextual factors as risk factors for workplace bullying, this study aims to examine the mediation effects of organizational orientation to employee welfare in the economic stress-workplace bullying relationship. A cross-sectional study with the participation of 1004 Italian workers from several organizations was conducted. Our results indicate that economic stress (composed of two dimensions: fear of the economic crisis and perceived non-employability) is associated with workplace bullying through the total mediation of organizational orientation to employee welfare. These results have relevant implications for psychosocial risk assessment in turbulent times.
The Successful Adoption of IS in the Tourism Public Sector: The Mediating Effect of Employees’ Trust
Authors: Ghanem Marwa , Elshaer Ibrahim , Shaker Alaa
Published: May 2020

There have been many attempts to understand the role of trust in the success of Information Systems (IS), but they have mainly studied users’ trust in IS themselves in online contexts, with little attention being paid to other possible trust types and organizational IS contexts. Also, there is a dearth of research on the topic in relation to tourism context and developing countries in general. This study examines the mediating role of three types of trust (management-based, provider-based, and system-based trust) in the relationship between tourism IS qualities (system, information, and service quality) with employees’ satisfaction and the intention to and actual use of a system. Perceptions were tested with data from 200 employees in the public sector of the Egyptian tourism industry using structural equation modeling. The results revealed that trust directly affects intention to use/use and user satisfaction, and it completely mediates the effect of the IS qualities on the intention to use/use and user satisfaction. This study draws attention to the requirement of investigating different types of trust to better understand its impact on tourism IS adaptation in developing countries.
Measurement and Influencing Factors Research of the Energy and Power Efficiency in China: Based on the Supply-Side Structural Reform Perspective
Authors: Song Xiaohua , Zhao Caiping , Han Jingjing , Zhang Qi , Liu Jinpeng , Chi Yuanying
Published: May 2020

China’s supply-side structural reforms are facing bottlenecks in the energy and power sector, and improving energy and power efficiency and advancing reforms are urgent. To promote sustainable development, based on panel data from 30 provinces and cities in China from 2009 to 2017, this paper uses the super-efficiency DEA method to measure energy and power efficiency; explores the trend of energy and power efficiency changes before and after reform; uses the Tobit model to identify key efficiency factors; and provides policy recommendations to achieve reform goals. The research shows that China’s efficiency level takes the supply-side structural reform as the turning point and presents a volatile upward trend; from the situation of the country, technological progress, the economic development level, and the opening up level are positively correlated with the energy and power efficiency, among which the correlation coefficient between technological progress and efficiency is the highest. The study can offer a reference for the sustainable comprehensive utilization of China’s energy and power, and provide empirical evidence for other countries to improve the energy and power efficiency from the perspectives of theory and policies.
Assessing Anthropogenic Dynamics in Megacities from the Characterization of Land Use/Land Cover Changes: The Bogotá Study Case
Authors: Romero Claudia P. , García-Arias Alicia , Dondeynaz Celine , Francés Félix
Published: May 2020

Usually, megacities expand without proper planning in a context of demographic growth and are increasingly dependent on the natural resources related to the occupied area. This is a major challenge for the sustainable management of these territories, justifying the need for a better knowledge of land use/land cover (LULC) distribution and characteristics to observe spatial anthropogenic dynamics. In this study, the Bogotá river basin and the Bogotá megacity were analyzed as a case study. The main objective of this work was to analyze the historical LULC dynamics from 1985 to 2014. Reliable forecasting scenarios were developed using the Land Change Modeler to support sustainable management and planning. Results show an expansion of the Bogotá megacity toward the Northeast and an increase of urban areas within the basin. These changes implied a loss of 58% of forest surface, a strategic ecosystem, from 1985 to 2014. This dynamic is expected to continue, with a 50% increase of urban areas between 2012 to 2050, thus the megacity and neighbor cities potentially become an “urban continuum”. A replacement of crop and pasture lands near the city is expected, even though Bogotá lands are among the best agricultural lands in the Andean region of Colombia.
Introducing a Multiscalar Framework for Biocluster Research: A Meta-Analysis
Authors: Ayrapetyan David , Hermans Frans
Published: May 2020

Bioclusters have grown in popularity in the last decade in response to the global environmental and climate challenges. These clusters envisage sustainable and local production value chains in different sectors of the bioeconomy. However, the sustainability of these clusters is often questioned because of the negative social and environmental effects they can have both inside and outside of their region. At present, a framework is missing to analyze these effects that span multiple levels and multiple scales. The aim of this paper is to develop such a multiscalar framework. For this aim, we conducted a meta-analysis of biocluster case studies. As a result, we constructed a framework that combines the aspects of sustainability, knowledge and resource flows, cluster network properties, and the political and institutional structures. We tested this framework on the question of how the different scales of biocluster performance interact and depend on each other.
A Conceptual Analysis of Switching Costs: Implications for Fitness Centers
Authors: Kim Kyungyeol (Anthony) , Byon Kevin K. , Choi Heedong
Published: May 2020

In facing fierce competition, fitness centers have encountered challenges of generating long-term economic sustainability. The construct of switching costs, which has garnered considerable attention as a sustainable strategy, suffers from conceptual confusion in the literature, limiting the applicability of the concept to fitness centers. The purpose of the study is to conduct a conceptual analysis of switching costs, thereby clarifying conceptual confusion and providing implications for fitness centers. To achieve the purpose, a conceptual analysis method was adopted, in which 376 switching costs articles were analyzed. The results show that (1) several terms have been used individually and interchangeably, (2) there is no consensus on the definition, (3) both unidimensional and multidimensional conceptualizations have been used, (4) model specification has rarely been done, and (5) a paucity of studies have been conducted in the context of the sport industry. Overall, we highlight the conceptual weaknesses of previous switching costs research and offer several recommendations and approaches to scholars who are interested in this line of research. Furthermore, the conceptual analysis brings attention to the importance of conceptualization (e.g., choosing a term, defining a construct) and how conceptual confusion might impinge on future research in the marketing literature.
Addressing the Social Vulnerability of Mississippi Gulf Coast Vietnamese Community through the Development of Community Health Advisors
Authors: Mayfield-Johnson Susan , Fastring Danielle , Le Daniel , Nguyen Jane
Published: May 2020

Background: Resiliency is the ability to prepare for, recover from, and adapt to stressors from adverse events. Social vulnerabilities (limited access to resources, political power, and representation; lack of social capital; aspects of the built environment; health inequities; and being in certain demographic categories) can impact resiliency. The Vietnamese population living along the Mississippi Gulf Coast is a community that has unique social vulnerabilities that impact their ability to be resilient to adverse events. Objectives: The purpose of this project was to address social vulnerability by implementing and evaluating a volunteer Community Health Advisor (CHA) project to enhance community resiliency in this community. Methods: A program implemented over eight three-hour sessions was adapted from the Community Health Advisor Network curriculum that focused on healthy eating, preventing chronic conditions (hyperlipidemia, diabetes, hypertension, cancer, and poor mental health). Topics also included leadership and capacity development skills. Results: Participants (n = 22) ranged from 35 to 84 years of age. Most were female (63.6%), married (45.5%), unemployed (63.6%), had annual incomes of <$10,000, and had high school diplomas (68.2%). Community concerns were crime (50.0%), volunteerism (40.0%), language barriers (35.0%), and food insecurity (30.0%). Approximately 75% had experienced war trauma and/or refugee camps, and 10% had experienced domestic violence. Scores on the Community Health Advisor Core Competency Assessment increased from pre-test to post-test (t = −5.962, df = 11, p < 0.0001), as did SF-8 scores (t = 5.759, df = 17, p < 0.0001). Conclusions: Strategies to reduce vulnerabilities in the Vietnamese community should include developing interventions that address health risks and strengths and focus on root causes of vulnerability.
An Institutional Approach to Digitalization in Sustainability-Oriented Infrastructure Projects: The Limits of the Building Information Model
Authors: Hetemi Ermal , Ordieres-Meré Joaquin , Nuur Cali
Published: May 2020

The transport sector accounts for a large share of global Co2 emissions. To mitigate the impact of climate change, several sustainability-oriented large-scale infrastructure projects such as electric road systems and expanding rail systems have recently been on the policy agenda. A parallel development that is expected to accelerate the transition of the transport sector is digitalization, which, although ongoing for many decades, has recently been augmented by concepts such as artificial intelligence (AI) and smart city technologies. The integration of these digitalization tools at the organizational level poses not only opportunities but also some challenges for the actors involved in infrastructure projects. An approach that is currently promoted in the infrastructure sector is the Building Information Model (BIM), which is a decision-making instrument that leverages various digitalization tools and applications. However, although the economic implications of BIM are widely discussed in the literature, the (inter-) organizational dynamics involving multiple actors in infrastructure projects are not fully grasped. Large infrastructure projects are sociotechnical endeavors embedded in complex institutional frames; hence the institutional norms, practices and logics in them are significant. Responding to this, this paper adopted an institutional analysis and put the BIM approach in the (inter-) organizational context in infrastructure delivery. Drawing on empirical data from three organizations in infrastructure delivery in Spain, this paper analyzed the tensions among actors during BIM adoption and implementation.
Insights from the Sustainability Monitoring Tool SUMINISTRO Applied to a Case Study System of Prospective Wood-Based Industry Networks in Central Germany
Authors: Hildebrandt Jakob , Bezama Alberto , Thrän Daniela
Published: May 2020

Bioeconomy regions are a young concept representing emerging amalgamation points for the implementation of cross-sectoral value-added chains. When sustainable bioeconomy strategies are rolled out, their proof-of-concept implies that industrial R&D activities should lead to impact decoupling and that the valorization of locally available lignocellulosic biomass has to contribute to an increase in added value. Furthermore, regional co-benefits for society and a positive influence on local environmental and socioeconomic conditions are major factors. The fulfillment of these strategic goals would be a milestone achievement when progressing from the blueprint development and the road-mapping stage towards socially accepted and sustainable wood-based bioeconomy strategies. For regional industrial and science stakeholders who run pilot facilities for process upscaling and for energy and material flow integration, this requires well-orchestrated integrative processes, which go beyond conventional “Life Cycle Management” approaches. It is obvious that assessing and monitoring such integrative systems will have to account for different stakeholder perspectives and for detailed technology deployment and resource conversion scenarios. Applying a sustainability index methodology in a case study region must include an evaluation of the whole supply chain and the process networks associated with the characteristic products of the evaluated region. To date, no such integrative assessment methods exist in the literature. Therefore, the aim of this paper is to lay out, on the basis of a practical example in the case study region of Central Germany, an assessment of the sustainability level of wood-based bioeconomy networks by applying the Sustainability Monitoring Tool -SUMINISTRO”- to examine regional bio-based industry networks.
Self-Efficacy of Pre-Service Physical Education Teachers Toward Inclusion in Saudi Arabia
Authors: Alhumaid Majed M. , Khoo Selina , Bastos Tânia
Published: May 2020

This study aims to determine the differences in levels of self-efficacy toward inclusion in general physical education (PE) classes among Saudi pre-service PE teachers. It also aims to evaluate the effect of independent variables with the covariate of attitude scores on participants’ self-efficacy toward including students with intellectual disabilities (ID), physical disabilities (PD), and visual impairments (VI). In total, 260 pre-service PE teachers enrolled in a university in Saudi Arabia completed the Arabic version of the self-efficacy scale for a physical education teacher education major toward children with disabilities. Repeated-measures multivariate analysis of covariance (MANCOVA) revealed that self-efficacy was highest towards including students with intellectual disability in general PE class and lowest towards students with physical disabilities. Having previous experience of observing a PE teacher teaching a student with a disability significantly influenced participants’ self-efficacy. Participants’ attitudes toward inclusion were only significant with participants’ self-efficacy toward students with physical disabilities. The findings suggest that observing a role model significantly predicts self-efficacy toward the inclusion of students with a disability.
Customer Knowledge Management in SMEs Facing Digital Transformation
Authors: Castagna Francesco , Centobelli Piera , Cerchione Roberto , Esposito Emilio , Oropallo Eugenio , Passaro Renato
Published: May 2020

This paper provided a novel definition of customer knowledge management (CKM) as the logical intersection of customer relationship management (CRM) and knowledge management (KM). The main aim was to investigate the digital technologies supporting small and medium enterprises (SMEs) operating in creative industries in their customer knowledge management strategies. To achieve this aim, a survey involving 73 handicraft and/or retail SMEs operating in luxury jewelry industry was conducted. The survey results pointed out that in a few years the scenario has changed and that surveyed SMEs make more intensive use of traditional technologies supporting customer knowledge management processes rather than more innovative digital technologies, which are also cheap and easy to use. This finding showed the difficulties of SMEs operating in creative industries to be responsive to the rapid technological changes that are affecting CKM, as well as the lack of support from information technology vendors in the decision-making process for choosing adequate digital systems.
Reassembling Heritage after the Disaster: On the Sungnyemun Debate in South Korea
Authors: Paek Seunghan , An Dai Whan
Published: May 2020

This article explores the changing values of heritage in an era saturated by an excess of media coverage in various settings and also threatened by either natural or manmade disasters that constantly take place around the world. In doing so, we focus on discussing one specific case: the debate surrounding the identification of Sungnyemun as the number one national treasure in South Korea. Sungnyemun, which was first constructed in 1396 as the south gate of the walled city Seoul, is the country’s most acknowledged cultural heritage that is supposed to represent the national identity in the most authentic way, but its value was suddenly questioned through a nationwide debate after an unexpected fire. While the debate has been silenced after its ostensibly successful restoration conducted by the Cultural Heritage Administration in 2013, this article argues that the incident is a prime example illustrating how the once venerated heritage is reassembled through an entanglement of various agents and their affective engagements. Methodologically speaking, this article aims to read Sungnyemun in reference to the growing scholarship of actor-network theory (ANT) and the studies of heritage in the post-disaster era through which to explore what heritage means to us at the present time. Our synchronic approach to Sungnyemun encourages us to investigate how the once-stable monument becomes a field where material interventions and affective engagements of various agents release its public meanings in new ways.
Applying a Social–Ecological Systems Approach to Understanding Local Marine Management Trajectories in Northern Mozambique
Authors: Osuka Kennedy , Rosendo Sérgio , Riddell Michael , Huet Jeremy , Daide Mario , Chauque Ercilio , Samoilys Melita
Published: May 2020

This study applied the social–ecological systems framework (SESF) to six fishing communities in northern Mozambique where marine resource management is being implemented through the Our Sea Our Life project. Data on 11 variables and 27 indicators were organised using the SESF to represent the key system dimensions (Governance system, Actors, Resource units and Resource system). Variables within each dimension were weighed to a cumulative score of one. High scores (> 0.50) for Governance system occurred where communities had fisheries management rules and good knowledge of fishing gear regulations. High scores for Actors were evident in communities with few migrant fishers and high participation in village savings and loans associations. Elevated scores of the Resource units occurred where fishers targeted a variety of fish taxa. A healthy Resource system was found in communities neighbouring highly productive and resilient reefs, characterised by high fish biomass and diversity. The status of social and ecological conditions coupled with initial levels of project support and quality of technical support were linked with project achievements. Application of the SESF is therefore valuable in understanding interdependent linkages between social and environmental conditions to inform the design of localised management interventions for social–ecological sustainability.
Evaluating the Impact of Climate Change on Water Productivity of Maize in the Semi-Arid Environment of Punjab, Pakistan
Authors: Waqas Muhammad Mohsin , Shah Syed Hamid Hussain , Awan Usman Khalid , Waseem Muhammad , Ahmad Ishfaq , Fahad Muhammad , Niaz Yasir , Ali Sikandar
Published: May 2020

Impact assessments on climate change are essential for the evaluation and management of irrigation water in farming practices in semi-arid environments. This study was conducted to evaluate climate change impacts on water productivity of maize in farming practices in the Lower Chenab Canal (LCC) system. Two fields of maize were selected and monitored to calibrate and validate the model. A water productivity analysis was performed using the Soil–Water–Atmosphere–Plant (SWAP) model. Baseline climate data (1980–2010) for the study site were acquired from the weather observatory of the Pakistan Meteorological Department (PMD). Future climate change data were acquired from the Hadley Climate model version 3 (HadCM3). Statistical downscaling was performed using the Statistical Downscaling Model (SDSM) for the A2 and B2 scenarios of HadCM3. The water productivity assessment was performed for the midcentury (2040–2069) scenario. The maximum increase in the average maximum temperature (Tmax) and minimum temperature (Tmin) was found in the month of July under the A2 and B2 scenarios. The scenarios show a projected increase of 2.8 °C for Tmax and 3.2 °C for Tmin under A2 as well as 2.7 °C for Tmax and 3.2 °C for Tmin under B2 for the midcentury. Similarly, climate change scenarios showed that temperature is projected to decrease, with the average minimum and maximum temperatures of 7.4 and 6.4 °C under the A2 scenario and 7.7 and 6.8 °C under the B2 scenario in the middle of the century, respectively. However, the highest precipitation will decrease by 56 mm under the A2 and B2 scenarios in the middle of the century for the month of September. The input and output data of the SWAP model were processed in R programming for the easy working of the model. The negative impact of climate change was found under the A2 and B2 scenarios during the midcentury. The maximum decreases in Potential Water Productivity (WPET) and Actual Water Productivity (WPAI) from the baseline period to the midcentury scenario of 1.1 to 0.85 kgm−3 and 0.7 to 0.56 kgm−3 were found under the B2 scenario. Evaluation of irrigation practices directs the water managers in making suitable water management decisions for the improvement of water productivity in the changing climate.
Dynamic Interrelationship and Volatility Spillover among Sustainability Stock Markets, Major European Conventional Indices, and International Crude Oil
Authors: Maraqa Basel , Bein Murad
Published: May 2020

This study examines the dynamic interrelationship and volatility spillover among stainability stock indices (SSIs), international crude oil prices and major stock returns of European oil-importing countries (UK, Germany, France, Italy, Switzerland and The Netherlands) and oil-exporting countries (Norway and Russia). We employ the DCC-MGARCH model and use daily data for the sample period from 28 September 2001 to 10 January 2020. We find that the dynamic interrelationship between SSIs, stock returns of European oil importing/exporting countries and oil markets is different. There is higher correlation between SSIs and oil-importing countries, while oil-exporting countries have higher correlation with the oil market. Notably, the correlation between oil and stock returns became higher during and after the global financial crisis. This study also reveals the existence of significant volatility spillover between sustainability stock returns, international oil prices and the major indices of oil importing/exporting countries. These results have important implications for investors who are seeking to hedge and diversify their assets and for socially responsible investors.
Solar Home Systems for Clean Cooking: A Cost–Health Benefit Analysis of Lower-Middle-Income Countries in Southeast Asia
Authors: Zhang Jing , Raufer Roger , Liu Lingxuan
Published: May 2020

Limited access to clean energy has long been an obstacle to livelihood improvement of populations mired in energy poverty. Cooking with traditional biomass contributes to high levels of indoor air pollution, thus imposing significant threats to public health. Due to the accessibility and affordability of clean fuels for rural residents, this study proposes that renewable solar energy be employed to supply power for induction cooking stoves (ICS) through solar home systems (SHS), and estimates both the costs and health benefits of upgrading to ICS and SHS in lower-middle-income countries (LMCs) in Southeast Asia. Disability-Adjusted Life Years and the value of a statistical life year were employed to estimate the health benefits of ICS-SHS. The results suggest that the health benefits brought by ICS-SHS alone can surpass the estimated minimum cost for an ICS-SHS in the six LMCs in Southeast Asia. This study provides a potential reference for getting other energy poverty regions involved with affordable, reliable, sustainable, and modern energy, as well as simultaneously tackling indoor air pollution caused by cooking.
Corporate Economic, Environmental, and Social Sustainability Performance Transformation through ESG Disclosure
Authors: Alsayegh Maha Faisal , Abdul Rahman Rashidah , Homayoun Saeid
Published: May 2020

Within the environmental, social, and governance (ESG) disclosure–corporate sustainability performance (economic, environmental and social; EES) framework, our empirical analysis examined the impact of ESG information disclosure on EES sustainability performance among Asian firms from 2005 to 2017. The positive ESG disclosure–EES sustainability performance relationship found in this study provides evidence that disclosing the implementation of environment and social strategies within an effective system of corporate governance in the organization strengthens corporate sustainability performance. The results also show that environmental performance and social performance are significantly positively related to economic sustainable performance, indicating that the corporation’s economic value and creating value for society are interdependent. In line with the stakeholder theory and the shared value theory, ESG information disclosure to all stakeholders is an important factor in creating a competitive advantage for enhancing corporate sustainability performance.
Experimental Study on Acoustic Emission of Confined Compression of Crushed Gangue under Different Loading Rates: Disposal of Gangue Solid Waste
Authors: Li Junmeng , Huang Yanli , Zhai Wen , Li Yingshun , Ouyang Shenyang , Gao Huadong , Li Wei , Ma Kun , Wu Laiwei
Published: May 2020

The crushed gangue materials which are filled into the goaf in solid-backfilling coal mining become the main body of bearing the overburden after the tamping process. Its resistance to deformation is the key to control overburden movement and surface subsidence. Particle breakage affects the resistance to deformation of filling materials. In this paper, a confined compression test of crushed gangue under different loading rates was designed, and the acoustic emission (AE) signal was monitored in the process of confined compression. The test results showed that with the increase of loading rate, the anti-deformation ability of crushed gangue showed a dynamic change process of increasing, decreasing, and then increasing again. With the increase of loading rate, the breakage degree of the samples decreased, the proportion of large-sized gangue increased, the growth period of AE counts showed an obvious hysteresis phenomenon, and the AE activity level of the gangue increased gradually. The research results can not only provide a more in-depth and comprehensive understanding of the mechanical properties of crushed gangue filling materials but also provide a reference for the engineering application of solid-filling coal mining.
Environmental and Economic Prioritization of Building Energy Refurbishment Strategies with Life-Cycle Approach
Authors: Oregi Xabat , Hernández Rufino Javier , Hernandez Patxi
Published: May 2020

An increasing number of studies apply life-cycle assessment methodology to assess the impact of a new building or to prioritize between different building refurbishment strategies. Among the different hypotheses to consider during the application of this methodology, the selection of the impact indicator is critical, as this choice will completely change the interpretation of the results. This article proposes applying four indicators that allow analysing the results of a refurbishment project of a residential building with the life-cycle approach: non-renewable primary energy use reduction (NRPER), net energy ratio (NER), internal rate of return (IRR), and life-cycle payback (LC-PB). The combination of environmental and economic indicators when evaluating the results has allowed to prioritize among the different strategies defined for this case study. Furthermore, an extensive sensitivity assessment reflects the high uncertainty of some of the parameters and their high influence on the final results. To this end, new hypotheses related to the following parameters have been considered: reference service life of the building, estimated service life of material, operational energy use, conversion factor, energy price, and inflation rate. The results show that the NRPE use reduction value could vary up to −44%. The variation of the other indicators is also very relevant, reaching variation rates such as 100% in the NER, 450% in the IRR, and 300% in the LC-PB. Finally, the results allow to define the type of input or hypothesis that influences each indicator the most, which is relevant when calibrating the prioritization process for the refurbishment strategy.
Policy Agenda for Sustainable Intermodal Transport in China: An Application of the Multiple Streams Framework
Authors: Ge Jiawei , Shi Wenming , Wang Xuefeng
Published: May 2020

Intermodal transport is widely believed to be an efficient way of organizing transportation activities because of its significant role in reducing logistics costs and emissions of air pollutants, which copes with the ever-increasing economic and environmental concerns. This paper applies the multiple streams framework (MSF) to analyze three streams (e.g., the problem stream, policy stream, and politics stream) in setting policy agenda for sustainable intermodal transport in China. By restricting the attention to the opening of the policy window and the coupling of the three streams, the motivation, process, and trend of formulating intermodal transport policy are systematically discussed. The findings show that the key to setting the policy agenda for sustainable intermodal transport in China is to strengthen collaboration among multiple interest groups, boost the national mood, and diversify the identity of policy entrepreneurs. This paper not only verifies the applicability of the MSF, but also helps us to better understand how sustainable intermodal transport policy is formulated in China, thus promoting future policy making.
Less Salt, Same Taste: Food Marketing Strategies via Healthier Products
Authors: Campo Raffaele , Rosato Pierfelice , Giagnacovo Davide
Published: May 2020

Given the negative effects deriving from the overconsumption of sodium chloride (salt), this paper aims to verify whether food companies can provide their products in a healthier version, without modifying their organoleptic characteristics, specifically studying how it is possible to reduce salt in food without affecting taste. From an empirical point of view, a sensorial analysis was organized. A panel of volunteers were invited to taste some samples of pizza crust which had been prepared using different quantities of salt. Each individual assessed the amount of salt they perceived on a graduated scale. These samples were prepared by reducing the amount of salt by 7%, 10%, 16%, 23%, 30%, and 53%, respectively. The reference point used was the average content of sodium chloride in five popular brands of pizza dough in Italy. Panelists’ evaluations revealed that a 10% reduction in sodium chloride was imperceptible from the point of view of taste. Considering the negative consequences deriving from salt overconsumption, this study shows how food companies can contribute to achieve the UN Sustainable Development Goals by investing more attention in public health.
Effects and Mechanisms of Phosphate Activation in Paddy Soil by Phosphorus Activators
Authors: Yao Huanli , Chen Xian , Yang Junying , Li Jihong , Hong Jiale , Hu Yueming , Mao Xiaoyun
Published: May 2020

Phosphorus (P) build-up in agricultural soils as a consequence of excessive P fertilizer application necessitates the exploration of soil P pool for crop supply. We conducted a soil incubation experiment, pot experiments, and field experiments to study the effects of different P activators (Pas) (humic acid, lignosulfonate sodium, and biochemical humic acid) on soil phosphate fraction, rice yield, and P loss. Through chemical analyses and microbial community structure measurement, we found that Pas significantly increased paddy soil water-soluble P (WSP), available P, Fe-P, and relative abundances of P-mineralizing and P-solubilizing microorganisms, whereas they decreased Al-P and microbial alpha diversity. Our pot experiment results showed that the application of Pas significantly reduced soil P loss and resulted in grain yield comparable to those obtained by fertilization with P fertilizers, and significantly higher than those in the control plants. The results of the field experiment suggested that Pas are able to increase rice yield more significantly than P fertilizers and improve the P utilization efficiency of rice plants. We conclude that application of Pas was more effective in reducing P leaching, soil total P, WSP, and Olsen P than P fertilizers during rice harvest.
Transit-Based Evacuation for Urban Rail Transit Line Emergency
Authors: Hou Bowen , Cao Yang , Lv Dongye , Zhao Shuzhi
Published: May 2020

Urban rail systems are the backbone of urban transit networks and are characterized by large passenger volumes, high speeds, punctuality, and low environmental impacts. However, unforeseen events such as rail transit line emergencies can lead to unexpected costs and delays. As a means of disruption management, we divide the decision support system for urban rail transit line emergency situations into two stages—transit-based evacuation and bus bridging management. This paper focuses on the transit-based evacuation under emergency scenarios on a single rail line. The model determines the vehicles and routes within traditional transit systems required to evacuate stranded passengers within a given time window. In addition, the proposed method ensures the reliability of traditional transit systems by considering the operating fleet and reserve fleet in the traditional transit systems. Therefore, the proposed optimization model is established with the objective of maximizing the total number of stranded passengers transferred within the given time window and headway constraint. Herein, we present the optimization model and solution method, and the proposed method is validated. The effectiveness of the proposed control method is evaluated in the Changchun urban transit network. By analyzing stranded passengers at stations under different numbers of vehicles and time periods, the results show that the proposed model can significantly provide routing arrangements to maximize the number of passengers evacuated from stations. The results are useful in the development of emergency evacuation plans to prevent secondary accidents and evacuate stranded passengers during a rail transit line emergency.
Influence of the Parental Educational Level on Physical Activity in Schoolchildren
Authors: Muñoz-Galiano Inés M. , Connor Jonathan D. , Gómez-Ruano Miguel A. , Torres-Luque Gema
Published: May 2020

The factors influencing physical activity participation in children are varied, although there is evidence that the educational level of parents may be one important factor. The aim of this study is to analyze the influence of parental education on the level of physical activity and the sedentary behavior of their children. The parents of 727 students, separated based on school group (preschool: n = 179; primary: n = 284; secondary: n = 230; high: n = 34), were invited to complete a series of questionnaires assessing their educational level (low, intermediate, and high) and their child’s level of physical activity and sedentary behavior. Primary school students with high- and intermediate-educated parents were found to engage in significantly more physical activity per week and spent more time engaged in homework than children with lower-educated parents. Secondary school students with higher-educated parents were found to spend significantly less time engaged in sedentary behavior than children with lower- or intermediate-educated parents, and high schoolers with higher-educated parents engaged in less tablet time than children with lower-educated parents. Multiple linear regression demonstrated that greater physical activity was precipitated by certain sedentary behaviors in children with more educated parents, such as total time watching TV (primary school), doing homework (secondary school), and total time using a tablet/similar (high school), which increased total time engaged in physical activity. These findings suggest that more educated parents may implement structured time for their children to engage in a balance of physical activity and sedentary behaviors.
Assessment of Ecological Carrying Capacity and Ecological Security in China’s Typical Eco-Engineering Areas
Authors: Zhang Yaxian , Fan Jiangwen , Wang Suizi
Published: May 2020

The implementation of ecological restoration programs is intensively changing the original ecological carrying capacity and the status of ecological security. To evaluate the spatiotemporal variation of ecological carrying capacity and ecological security in China’s eco-engineering areas, an indicator system of ecological carrying capacity and ecological security should be developed. This study developed an evaluation indicator system that contains 29 indicators. The indicators were generated by long-time series and multi-source data. The indicator system presents the relationship between ecological carrying capacity and ecological security and reflects the dynamic change of them in eco-engineering areas. We selected the Three-River Headwaters Region (TRHR) and implemented the Ecological Conservation and Construction Program (ECCP) as a case study. The results showed the variation of ecological carrying capacity (ECC) and ecological security (ES) in the TRHR before (2000–2004), during early term (2005–2009), and during medium term (2010–2015) implementation of ECCP, and limiting factors of ecological carrying capacity and ecological security in TRHR was analyzed. The results showed that the ECC index and the ES index were significantly increase, indicating that the ECC improved and that the ES state got better in the TRHR after implementing ECCP. The water conservation was the major factors limiting the increase of the ECC. The leading factors limiting the improvement of the ES were educational expenditure before 2010 and turned into proportion of tertiary industry and investments for ecological restoration after 2010. The implementation of the ECCP has improved the ES state but has also resulted in new problems. It provides a scientific reference for future research on the indicator system of ecological carrying capacity and ecological security in eco-engineering areas and also has vital practical significance to guide the sustainable development of ecological restoration programs.
Approach towards Sustainable and Smart Coal Port Development: The Case of Huanghua Port in China
Authors: Zhao Daozhi , Wang Tianyi , Han Hongshuai
Published: May 2020

This paper focuses on measures towards sustainable development of coal ports based on the economic, environmental, and social dimensions of the triple bottom line, and examines the integration and optimization roles of smart technologies on coal port sustainability in the era of the Internet of Things. By investigating the representative case of Huanghua Port, one of the largest coal transportation ports in China, this paper enables a better understanding of the coal port’s sustainable practices driven by smart technologies. This study provides measures on the intelligent renovation, coal dust pollution treatment, air pollution treatment and sewage treatment, the customer and employee satisfaction improvement, and community involvement as well as social reputation enhancement. The research investigates the effectiveness of measures on the coal port’s sustainability by examining changes in key performance indicators and further examines the integration and optimization roles of smart technologies. The findings show that the approach taken by the port can effectively promote the coal port’s sustainability. The intelligent operation control system linking the separate nodes in operation, the ecological intelligent control system integrating environmental protection functions, and the intelligent service platform linking supply chain members are interrelated and interact to achieve the continuous optimization of decisions towards coal port sustainability. This study offers managerial insights for the port operators and policymakers towards the sustainable and smart development of ports.
Land Use and Land Cover Change Detection and Prediction in the Kathmandu District of Nepal Using Remote Sensing and GIS
Authors: Wang Sonam Wangyel , Gebru Belay Manjur , Lamchin Munkhnasan , Kayastha Rijan Bhakta , Lee Woo-Kyun
Published: May 2020

Understanding land use and land cover changes has become a necessity in managing and monitoring natural resources and development especially urban planning. Remote sensing and geographical information systems are proven tools for assessing land use and land cover changes that help planners to advance sustainability. Our study used remote sensing and geographical information system to detect and predict land use and land cover changes in one of the world’s most vulnerable and rapidly growing city of Kathmandu in Nepal. We found that over a period of 20 years (from 1990 to 2010), the Kathmandu district has lost 9.28% of its forests, 9.80% of its agricultural land and 77% of its water bodies. Significant amounts of these losses have been absorbed by the expanding urbanized areas, which has gained 52.47% of land. Predictions of land use and land cover change trends for 2030 show worsening trends with forest, agriculture and water bodies to decrease by an additional 14.43%, 16.67% and 25.83%, respectively. The highest gain in 2030 is predicted for urbanized areas at 18.55%. Rapid urbanization—coupled with lack of proper planning and high rural-urban migration—is the key driver of these changes. These changes are associated with loss of ecosystem services which will negatively impact human wellbeing in the city. We recommend city planners to mainstream ecosystem-based adaptation and mitigation into urban plans supported by strong policy and funds.
Effects of Supercritical CO2 Treatment Temperatures on Mineral Composition, Pore Structure and Functional Groups of Shale: Implications for CO2 Sequestration
Authors: Cheng Yugang , Zeng Mengru , Lu Zhaohui , Du Xidong , Yin Hong , Yang Liu
Published: May 2020

Research on the physicochemical reactions between supercritical carbon dioxide (Sc-CO2) and shale at different temperature is essential for geological CO2 sequestration. In this paper, shale from the Longmaxi formation in Sichuan basin of China was collected to study the changes in mineral composition, pore structure, and organic functional groups treated with Sc-CO2 at fixed pressure 8 MPa and temperatures 40 °C to 80 °C. Samples were analyzed with x-ray diffraction, CO2/N2 gas adsorption, and Fourier transform infrared spectroscopy. The results show that the dissolution of clay minerals by Sc-CO2 first declined, but then increased when the temperature increased; dissolution reached a minimum at 60 °C. The specific surface area, total pore volume, predominant pore type (mesopores), and fractal dimension of the shale pore structure first increases and then decreases with increasing temperature. The destruction of hydroxyl structures by Sc-CO2 is related to the destruction of OH–N and ring hydroxyls. As the temperature increases, the hydroxyl destruction first increases and then decreases. The aromatic hydrocarbons are mainly dominated by 3H and 2H, and their abundances increase significantly as temperature increases, whereas the 4H shows a decreasing trend; the 1H abundance does not change appreciably. The relative abundances of aromatic and aliphatic hydrocarbons decrease linearly as the temperature increases. These research results provide theoretical support for the geological storage of Sc-CO2 in shale at different temperatures.