bluuebunny/crossref_metadata_2025 huggingface dataset:
Radiological Scouting, Monitoring and Inspection Using Drones
Authors: Pinto Luís Ramos , Vale Alberto , Brouwer Yoeri , Borbinha Jorge , Corisco José , Ventura Rodrigo , Silva Ana Margarida , Mourato André , Marques Gonçalo , Romanets Yuri , Sargento Susana , Gonçalves Bruno
Published: April 2021

Human populations and natural ecosystems are bound to be exposed to ionizing radiation from the deposition of artificial radionuclides resulting from nuclear accidents, nuclear devices or radiological dispersive devices (“dirty bombs”). On the other hand, Naturally Occurring Radioactive Material industries such as phosphate production or uranium mining, contribute to the on site storage of residuals with enhanced concentrations of natural radionuclides. Therefore, in the context of the European agreements concerning nuclear energy, namely the European Atomic Energy Community Treaty, monitoring is an essential feature of the environmental radiological surveillance. In this work, we obtain 3D maps from outdoor scenarios, and complete such maps with measured radiation levels and with its radionuclide signature. In such scenarios, we face challenges such as unknown and rough terrain, limited number of sampled locations and the need for different sensors and therefore different tasks. We propose a radiological solution for scouting, monitoring and inspecting an area of interest, using a fleet of drones and a controlling ground station. First, we scout an area with a Light Detection and Ranging sensor onboard a drone to accurately 3D-map the area. Then, we monitor that area with a Geiger–Müller Counter at a low-vertical distance from the ground to produce a radiological (heat)map that is overlaid on the 3D map of the scenario. Next, we identify the hotspots of radiation, and inspect them in detail using a drone by landing on them, to reveal its radionuclide signature using a Cadmium–Zinc–Telluride detector. We present the algorithms used to implement such tasks both at the ground station and on the drones. The three mission phases were validated using actual experiments in three different outdoor scenarios. We conclude that drones can not only perform the mission efficiently, but in general they are faster and as reliable as personnel on the ground.
Beyond the Image of COVID-19 as Nature’s Revenge: Understanding Globalized Capitalism through an Epidemiology of Money
Authors: Hornborg Alf
Published: April 2021

Public discussion of the implications of the COVID-19 pandemic has reproduced several recurrent and interrelated topics in discourses on sustainability and the Anthropocene. First, there is an ambiguous concern—sometimes ominous, sometimes hopeful—that the pandemic will precipitate radical social transformation or even collapse. Second, there is widespread reflection over the risks of economic globalization, which increases vulnerability and undermines local food security. Third, the pandemic is frequently imagined as nature’s revenge on humankind. This metaphor reflects a fundamental conceptual dualism separating nature and society that continues to constrain our efforts to understand the challenges of sustainability. To help transcend the epistemological and ontological dichotomy of nature versus society, the article proposes an epidemiological approach to all-purpose money. Conventional money is an artifact with far-reaching repercussions for global society as well as the biosphere. To approach it as the source of behavioral algorithms with severely detrimental consequences for both social and ecological systems might provide a middle ground for natural and social science.
Achieving Sustainability in Food Systems: Addressing Changing Climate through Real Time Nitrogen and Weed Management in a Conservation Agriculture-Based Maize–Wheat System
Authors: Shekhawat Kapila , Singh Vinod K. , Rathore Sanjay Singh , Raj Rishi , Das T. K.
Published: April 2021

The proven significance of conservation agriculture (CA) in enhancing agronomic productivity and resource use efficiency across diverse agro-ecologies is often challenged by weed interference and nitrogen (N) immobilization. The collective effect of real-time N and weed management has been scarcely studied. To evaluate the appropriateness of sensor-based N management in conjunction with a broad-spectrum weed control strategy for the maize–wheat system, an experiment was conducted at ICAR—Indian Agricultural Research Institute—in New Delhi, India, during 2015–2016 and 2016–2017. Weed management in maize through Sesbania brown manure followed by post-emergence application of 2,4-D (BM + 2,4-D) in maize and tank-mix clodinafop-propargyl (60 g ha−1) and carfentrazone (20 g ha−1) (Clodi+carfentra) in wheat resulted in minimum weed infestation in both crops. It also resulted in highest maize (5.92 and 6.08 t ha−1) and wheat grain yields (4.91 and 5.4 t ha−1) during 2015–2016 and 2016–2017, respectively. Half of the N requirement, when applied as basal and the rest as guided by Optical crop sensor, resulted in saving 56 and 59 kg N ha−1 in the maize–wheat system, respectively, over 100% N application as farmers’ fertilizer practice during the two consecutive years. Interactive effect of N and weed management on economic yield of maize and wheat was also significant and maximum yield was obtained with 50% N application as basal + rest as per Optical crop sensor and weed management through BM+2,4-D in maize and Clodi+carfentra in wheat crop. The study concludes that real-time N management, complemented with appropriate weed management, improved growth, enhanced agronomic productivity and endorsed N saving under a CA-based maize–wheat system in Trans Indo-Gangetic Plains.
Corporate Governance vs. Financial Performance for Intensity of Innovation Investments
Authors: Benetyte Raminta , Gonenc Halit , Krusinskas Rytis
Published: April 2021

In a rapidly changing technology world, companies need to conform to their customers’ expectations if they wish to remain competitive in the marketplace. New products, services, processes, marketing, management, and organizational innovation can all be tools to keep companies competitive. Research and development (R&D) expenditure is a critical component in the development of a design process. According to the scientific literature, corporate governance and financial performance can be essential variables with a significant impact on the innovation process. By acting transparently and honestly with all stakeholders (employees, suppliers, customers, creditors, government, community), companies can ensure and enhance the economic sustainability of the whole country through efficient management of financial resources and work toward high value-added innovation. Therefore, the aim of this work was to analyze whether corporate governance and financial performance affect the development of corporate innovation investments and, at the same time, the sustainability of the country’s economy. Additionally, this research proposes a methodology for integrated assessment of corporate innovation investments in the context of economic sustainability, aimed at companies and countries for more efficient investment in innovation and sustainable development outcomes. The object of the research was corporate innovation investment intensity as the driver for economic sustainability. An evaluation methodology for integrated assessment of corporate innovation investment can be used as an instrument for the stimulation of business innovation and strategic development of a country’s economy. The evaluation methodology of integrated assessment of corporate innovation investments can be utilized to evaluate different companies and governments. Evidence-based empirical calculations show that synchronized corporate governance and financial performance influence the intensity of corporate innovation investments in the context of economic sustainability.
Risk Management in Corporate Governance Framework
Authors: Rehman Hania , Ramzan Muhammad , Haq Muhammad Zia Ul , Hwang Jinsoo , Kim Kyoung-Bae
Published: April 2021

There is a scarcity of literature involving studies about the effect of risk management on the relationship between corporate governance and a firm’s financial performance, especially in emerging markets. The study fills this gap and adds to the existing literature by investigating whether risk management acts as a mediator between corporate governance and the firm’s financial performance. This study found that risk management partially mediates the relationship between board size and financial performance. Our results further indicate that risk management acts as a partial mediator between foreign ownership and financial performance.
The Relationship between Endurance Involvement and Travel Behavior in Camping and the Moderating Effect of Place Attachment
Authors: Wong Jehn-Yih , Hsiung Ming-Lee , Lee Shu-Ju , ChouHuang Chia-Ying
Published: April 2021

Camping tourism is one of the fastest growing segments of the tourism industry. Global trends in camping show that this type of recreational activity has begun to emerge in Asia. Meeting the expectations of potential and current tourists in a camping destination will lead to the accomplishment of competitive advantage. The endurance involvement and place attachment play important roles in understanding camping behaviors. However, limited research identified place attachment as a moderator of the influence of endurance involvement on camping travel behavior. To fill this gap, based on place attachment theory, our study developed a conceptual model that postulates endurance involvement and place attachment as predictors of camping tourism. 216 self-administered questionnaires were retuned. Confirmatory factor analysis was used to test the psychometric properties of the measures, while regression analysis was employed to assess the research hypotheses. The study results show that endurance involvement in camping affects camping travel behavior, whereas camping place dependence, camping place identity, and camping affective attachment moderate the effect of camping endurance involvement on camping travel behavior. Camping place attachment strengthens the relationship between camping endurance involvement and camping travel behavior. To maintain the sustainable development of camping tourism, campsite authorities should attach more importance to strengthening campers’ emotional bonds and concentrate on how to encourage them to participate in tourism activities. The findings have several theoretical and managerial implications for camping tourism marketing and the development of campground.
The Current Status and Challenges of China Railway Express (CRE) as a Key Sustainability Policy Component of the Belt and Road Initiative
Authors: Choi Kyoung-Suk
Published: April 2021

Under the auspices of the Belt and Road Initiative (BRI), China has been expanding the operation of its CRE (China Railway Express) system that links China and Europe. The CRE is today regarded as an important measure of progress by which BRI-related goals are achieved, and it has the potential to become the most sustainable mode of long-range transport. The system has been growing rapidly thanks to the active support of the Chinese government. As the Eurasian trade and logistics environment changes, CRE will become increasingly important as a third option that complements air and sea transport, with the demand continuing to accelerate among shippers for CRE service. Despite the expanding role and potential importance of the CRE system, few academic studies have been undertaken on the relevant CRE policies and status, especially in international academic journals. Thus, this study comprehensively reviewed the specific operation status of CRE system by route and region, and identified specific challenges that need to be addressed in order to continue its sustainable development.
Integration of Technology to Learning-Teaching Processes and Google Workspace Tools: A Literature Review
Authors: Akcil Umut , Uzunboylu Huseyin , Kinik Elanur
Published: April 2021

During the pandemic, educators around the world were unexpectedly encouraged to switch to online and distance learning. They tried to integrate face-to-face learning–teaching processes in the classrooms into the technological environment and to sustain this process in the best way. In this research, it is aimed to examine the current results in the current studies on technology integration into the teaching–learning processes in the literature. In order to collect data, a descriptive compilation pattern was used within the frame of the Literature Search method based on the qualitative method. The data obtained by examining the current articles obtained with the keyword “Technology Integration” were used in the research. As a result of the study, it was seen that technology integration is a complex and multidimensional process with several dynamics, and full integration cannot be achieved. As a result, recommendations were made in the context of various models and Google Workspace tools to help ensure technology integration in line with the obstacles specified in the studies.
The Relations between Teaching Strategies, Students’ Engagement in Learning, and Teachers’ Self-Concept
Authors: Han Feifei
Published: April 2021

Good teaching strategies may not only engage students in learning but may also promote teachers’ self-concept about teaching. The present study empirically investigated the contributions of four popular teaching strategies, namely, feedback, scaffolding, active learning, and collaborating, to students’ engagement in learning and teachers’ self-concept in teaching. The study adopted a quantitative design, which surveyed 208 Australian primary school teachers by using a five-point Likert-scale questionnaire. The structure of the questionnaire was first explored by an exploratory factor analysis (EFA) and then through a confirmatory factor analysis (CFA) in order to provide an account for validity. The results of correlations showed that all the four teaching strategies were positively associated with both students’ engagement and teachers’ self-concept. The results of the structural equation modelling found that the strength of these relations varied. While feedback, scaffolding, and active learning strategies all positively contributed to teachers’ self-concept, collaborating neither significantly predicted students’ engagement nor teachers’ self-concept. Only scaffolding had a positive path to students’ engagement, implying that scaffolding may be the best strategy among the four teaching strategies to engage primary students. The study suggested to teachers that they need to consider the age of learners when implementing teaching strategies.
The Gig Economy: Current Issues, the Debate, and the New Avenues of Research
Authors: Malik Radosław , Visvizi Anna , Skrzek-Lubasińska Małgorzata
Published: April 2021

In the context of the debate on platform economy, on the one hand, and the gig economy, on the other, this paper delineates the conceptual boundaries of both concepts to query the gig economy research included in the Web of Science database. The initial search, cutoff date February 2020, targeting “gig economy” returned a sample of 378 papers dealing with the topic. The subsequent analysis, employing the science mapping method and relating software (SciMAT), allowed to query the body of research dealing with gig economy in detail. The value added by this paper is fourfold. First, the broad literature on gig economy is mapped and the nascent synergies relating both to research opportunities and economic implications are identified and highlighted. Second, the findings reveal that while research on gig economy proliferates, the distinction between “platform” and “gig” economy frequently remains blurred in the analysis. This paper elaborates on this issue. Third, it is highlighted that the discussion on gig economy is largely dispersed and a clearer research agenda is needed to streamline the discussion to improve its exploratory and explanatory potential. This paper suggests ways of navigating this issue. Fourth, by mapping the existing research on gig economy and highlighting its caveats, the way toward a comprehensive research agenda in the field is highlighted.
Shades between Black and Green Investment: Balance or Imbalance?
Authors: de Sousa Gabriel Vítor Manuel , Miralles-Quirós María Mar , Miralles-Quirós José Luis
Published: April 2021

This paper analyses the links established between environmental indices and the oil price adopting a double perspective, long-term and short-term relationships. For that purpose, we employ the Bounds Test and bivariate conditional heteroscedasticity models. In the long run, the pattern of behaviour of environmental indices clearly differed from that of the oil prices, and it was not possible to identify cointegrating vectors. In the short-term, it was possible to conclude that, in contemporaneous terms, the variables studied tended to follow similar paths. When the lag of the oil price variable was considered, the impacts produced on the stock market sectors were partially of a negative nature, which allows us to suppose that this variable plays the role of a risk factor for environmental investment.
Better Enforcement Is Essential, but May Be Inadequate: Findings of a Survey on the Factors Affecting Payment of Speeding Fines in Cape Town, South Africa
Authors: Bantjes Jason , Plessis Sophia du , Jansen Ada , Siebrits Krige
Published: April 2021

While a large body of research has established that effective enforcement of speeding laws is essential for reducing the economic and social costs of road accidents, some studies have suggested that interventions aimed at moral beliefs about speeding and peer-related and other social contagion effects may be important complements to law enforcement activities. This article presents tentative evidence of the complementary nature of interventions to influence moral beliefs and steps to strengthen the enforcement of traffic laws. It does this by presenting and discussing the results of a survey that elicited information about the attitudes of motorists in Cape Town regarding speeding fines and aspects of the administration of traffic laws in South Africa. The self-reported fine-paying behaviour of the respondents correlates with instrumental factors shaped by the effectiveness of enforcement actions (e.g., compliance and monetary costs) as well as normative factors influenced by the moral beliefs of drivers and their social groups as well as the perceived legitimacy of traffic laws and officials. Regression results also provide evidence of a statistically significant relationship between the respondents’ self-reported fine-paying behaviour and their moral beliefs regarding payment of speeding fines.
A Novel Oil-free Dual Piston Compressor Driven by a Moving Coil Linear Motor with Capacity Regulation Using R134a
Authors: Sun Jian , Li Jianguo , Liu Yuanli , Huang Zhijie , Cai Jinghui
Published: April 2021

Improving compressor efficiency is very important to save energy and reduce greenhouse gas emissions. A novel oil-free dual piston compressor prototype driven by a moving coil linear motor was developed, and its working principle was described in detail. The prototype was integrated with a test rig to measure the operation characteristics, the compressor efficiencies and the coefficient of performance (COP). The results show that the dual piston structure results in extraordinary sinusoidal gas force and electromagnetic force and significantly reduces piston offset, which is completely different from the traditional single piston structure. Compared with the variable frequency method, the variable stroke method has lower energy consumption and a higher COP, which is more suitable to cooling capacity regulation for the prototype. The maximum COP, motor efficiency and volumetric efficiency are 5.34, 87.9% and 79.1%, respectively, under the design condition (the evaporation pressure is 0.35 MPa, and the pressure ratio is 2.54). The COP of the linear compressor is 38%, 24% and 12% higher than the commercial crank-driven reciprocating compressor at the pressure ratios of 2.54, 2.80 and 3.90, respectively, which reflects the efficiency advantage of the dual piston linear compressor in household refrigeration.
Keeping the Competitive Edge of a Convention and Exhibition Center in MICE Environment: Identification of Event Attributes for Long-Run Success
Authors: An Jaeyoung , Kim Hany , Hur Dongkeun
Published: April 2021

Understanding the weaknesses and strengths of event attributes plays a significant role in business survivability, specifically the meetings, incentives, conventions, and exhibitions (MICE) industry, in which the business environment is competitive. To be in business and survive long-term, service and product offerings must satisfy the needs of clients. In the case of the MICE industry, clients include event organizers, planners, and attendees. Thus, the IPA (importance-performance analysis) was conducted with hopes to provide valuable insight into the MICE industry to identify and evaluate their offering (attributes) that can assist Convention and Visitors Bureaus (CVBs) to establish better operational strategies that maintain their economic sustainability. Furthermore, this study also addressed the event planners and organizers’ perceptions toward the environment and social sustainability, measuring the importance and performance of ecofriendly venues and the availability of disabled access, which showed neither significant importance nor performance. However, as the main purpose of the research was to examine the essential venue selection criteria based on the perceptional lens of the event organizer and planners to MICE operators on achieving business sustainability, the findings of this study provide strategical direction to establish, maintain, and improve their facility, service, and products. The study also finds that there are different needs depending on the types of event organizers and planners.
Disaster Chain Analysis of Landfill Landslide: Scenario Simulation and Chain-Cutting Modeling
Authors: Xiu Wenqun , Wang Shuying , Qi Wenguang , Li Xue , Wang Chisheng
Published: April 2021

Landfill landslide is a man-made event that occurs when poorly managed garbage mounds at landfills collapse. It has become common in recent decades due to the rising waste volumes in cities. Normally, it is a complex process involving many disaster-causing factors and composed by many sequential sub-events. However, most current studies treat the landslide as a single and independent event and cannot give a full picture of the disaster. We propose a disaster chain analysis framework for landfill landslide in terms of scenario simulation and chain-cutting modeling. Each stage of the landfill landslide is modeled by taking advantage of various advanced techniques, e.g., remote sensing, 3DGIS, non-Newtonian fluid model, central finite difference scheme, and agent-base steering model. The 2015 Shenzhen “1220” landslide was firstly reviewed to summarize the general disaster chain model for landfill landslide. Guided by this model, we then proposed the specific steps for landfill landslide disaster chain analysis and applied them to another undergoing landfill, i.e., Xinwuwei landfill in Shenzhen, China. The scenario simulation in this landfill provides suggestions on potential hazardous risks and some applicable treatments. Through chain-cutting modeling, we further validated the effectiveness and feasibility of these treatments. The most optimized solution is subsequently deduced, which can provide support for disaster prevention and mitigation for this landfill.
The Role of Biophilic Agents in Building a Green Resilient City; the Case of Birmingham, UK
Authors: Novosadová Linda , van der Knaap Wim
Published: April 2021

The present research offers an exploration into the biophilic approach and the role of its agents in urban planning in questions of building a green, resilient urban environment. Biophilia, the innate need of humans to connect with nature, coined by Edgar O. Wilson in 1984, is a concept that has been used in urban governance through institutions, agents’ behaviours, activities and systems to make the environment nature-inclusive. Therefore, it leads to green, resilient environments and to making cities more sustainable. Due to an increasing population, space within and around cities keeps on being urbanised, replacing natural land cover with concrete surfaces. These changes to land use influence and stress the environment, its components, and consequently impact the overall resilience of the space. To understand the interactions and address the adverse impacts these changes might have, it is necessary to identify and define the environment’s components: the institutions, systems, and agents. This paper exemplifies the biophilic approach through a case study in the city of Birmingham, United Kingdom and its biophilic agents. Using the categorisation of agents, the data obtained through in-situ interviews with local professionals provided details on the agent fabric and their dynamics with the other two environments’ components within the climate resilience framework. The qualitative analysis demonstrates the ways biophilic agents act upon and interact within the environment in the realm of urban planning and influence building a climate-resilient city. Their activities range from small-scale community projects for improving their neighbourhood to public administration programs focusing on regenerating and regreening the city. From individuals advocating for and educating on biophilic approach, to private organisations challenging the business-as-usual regulations, it appeared that in Birmingham the biophilic approach has found its representatives in every agent category. Overall, the activities they perform in the environment define their role in building resilience. Nonetheless, the role of biophilic agents appears to be one of the major challengers to the urban design’s status quo and the business-as-usual of urban governance. Researching the environment, focused on agents and their behaviour and activities based on nature as inspiration in addressing climate change on a city level, is an opposite approach to searching and addressing the negative impacts of human activity on the environment. This focus can provide visibility of the local human activities that enhance resilience, while these are becoming a valuable input to city governance and planning, with the potential of scaling it up to other cities and on to regional, national, and global levels.
Social Exclusion and Effectiveness of Self-Benefit versus Other-Benefit Marketing Appeals for Eco-Friendly Products
Authors: Yu Ahyoung , Han Seunghee
Published: April 2021

Despite the growing need, marketers of eco-friendly products have not yet identified the most effective ways to attract consumers to their products. The current research explores the effectiveness of two distinct marketing appeals for eco-friendly upcycling products. In particular, an experiment is conducted to examine the hypothesis that the psychological state, especially feeling socially excluded, and marketing appeal type (self-benefit vs. other-benefit) will interact to affect the effectiveness of the promotion. The results suggest that self-benefit appeals are more effective than other-benefit appeals for encouraging positive purchase intentions when consumers feel socially excluded. Importantly, the effect of social exclusion is moderated by how lasting consumers think their social exclusion experience will be. The more stable consumers think their social exclusion experience will be, the more positively they respond to self-benefit appeals as compared to other-benefit appeals. The results suggest a way that marketers could tailor their marketing message to consumers’ psychological state.
Investigating Circular Business Model Innovation through Keywords Analysis
Authors: Bigliardi Barbara , Filippelli Serena
Published: April 2021

Ongoing economic, social and environmental developments have forced the production system to undertake a profound transformation, shifting from a linear to a circular model. The transformation towards a circular economy poses significant challenges for established companies, in many cases requiring a strong modification of their current business models, start-ups and new ventures. Firms need to completely rethink their value proposition, modifying how the product or service is produced, delivered to the customers and disposed of. As a result, interest in business model innovation with a view to a circular system has increased significantly over the last five years, leading to a flourishing literature production. Although several literature reviews have been published on the topic of the circular business model, few of them include the innovation dimension. Moreover, the time horizon covered by the previous reviews extends to 2019 and in one case to 2020. Since 2020 saw a 135% increase in scientific production compared to the previous year, it is necessary to update the prior works, taking into account the new contributions. Our paper aims to bridge this gap by proposing a literature review based on keywords analysis. In this way, it is possible to analyze the issues addressed in the circular business model innovation (CMBI) by categorizing them as core, emerging/phantom, trendy or intermittent. This analysis is particularly suitable for identifying future research directions as signaled by the emerging themes.
An Improved Method for Urban Built-Up Area Extraction Supported by Multi-Source Data
Authors: Li Chengming , Wang Xiaoyan , Wu Zheng , Dai Zhaoxin , Yin Jie , Zhang Chengcheng
Published: April 2021

Urban built-up areas, where urbanization process takes place, represent well-developed areas in a city. The accurate and timely extraction of urban built-up areas has a fundamental role in the comprehension and management of urbanization dynamics. Urban built-up areas are not only a reflection of urban expansion but also the main space carrier of social activities. Recent research has attempted to integrate the social factor to improve the extraction accuracy. However, the existing extraction methods based on nighttime light data only focus on the integration of a single factor, such as points of interest or road networks, which leads to weak constraint and low accuracy. To address this issue, a new index-based methodology for urban built-up area extraction that fuses nighttime light data with multisource big data is proposed in this paper. The proposed index, while being conceptually simple and computationally inexpensive, can extract the built-up areas efficiently. First, a new index-based methodology, which integrates nighttime light data with points-of-interest, road networks, and the enhanced vegetation index, was constructed. Then, based on the proposed new index and the reference urban built-up data area, urban built-up area extraction was performed based on the dynamic threshold dichotomy method. Finally, the proposed method was validated based on actual data in a city. The experimental results indicate that the proposed index has high accuracy (recall, precision and F1 score) and applicability for urban built-up area boundary extraction. Moreover, this paper discussed different existing urban area extraction methods, and provides an insight into the appropriate approaches selection for further urban built-up area extraction in cities with different conditions.
Determinants of Rice Farmer Participation in the Direct Marketing Channel in Ghana
Authors: Donkor Eunice Adu , Garnevska Elena , Siddique Muhammad Imran , Donkor Emmanuel
Published: April 2021

Enhancing smallholder farmers’ access to reliable, ready, and direct marketing channels is a prerequisite for sustainable food supply and poverty reduction in the developing countries including Ghana. However, it is a great challenge for smallholder farmers to access direct marketing channels in Ghana. This paper analyzes the factors that influence smallholder rice farmers’ participation, and the intensity of participation, in direct marketing channels using primary data from 199 farmers in three rice-growing districts in the Northern Region of Ghana. A double hurdle model was used in the empirical analysis. The study findings show that a lower percentage of farmers sold their rice output to processors (direct marketing). Farm size, the price of rice output per 85 kg bag, access to market information, and access to credit increased farmers’ participation in direct marketing channels, whereas payment period and ownership of a bicycle reduced their participation. The study concludes that improving farmers’ access to market information and credit availability would enhance participation in direct marketing channels.
Societal Digital Platforms for Sustainability: Agriculture
Authors: Bhaskara Srikanta , Bawa Kamaljit S.
Published: April 2021

During the last several decades, international and national agricultural research infrastructures have rapidly expanded, bringing the outputs of agricultural research to the world’s farmers. However, despite huge investments in agricultural research, there have been few systematic efforts to create digital platforms to meet the information requirements of farmers in a changing world. We describe an interactive information system in real time to provide agricultural information to farmers. The goals were to increase yields, reduce or optimize farm inputs, inform farmers about markets and government policies, and enable digital literacy among farmers, which (in the long run) would enhance rural incomes. Farmer clubs were created at the village level to increase engagement in the program and to access information. A call-in help center enabled farmers to get information in real time. In addition, a digital platform named eKisaan delivered relevant and contextual information in the local language, mostly in the video format via mobile and cloud technologies. The platform provided information about crop management and a variety of other parameters. The combined incremental savings and incremental earnings resulted in an estimated increase of 15% in income after 18 months, totaling INR₹26,250,000 (US$365,000), followed by an additional increase of 7% in the third year. The approximate cost of the information technology program and help center was INR₹15,000,000 (US$208,000). Over time, costs can decrease by spreading fixed costs over several years, with benefits reaching more farmers. Thus, the digital systems focused on information alone can be cost-effective, reduce inputs, increase productivity and income, and foster sustainability.
Methodology of Implementing Virtual Reality in Education for Industry 4.0
Authors: Paszkiewicz Andrzej , Salach Mateusz , Dymora Paweł , Bolanowski Marek , Budzik Grzegorz , Kubiak Przemysław
Published: April 2021

This paper presents an entirely new approach to the use of virtual reality (VR) in the educational process for the needs of Industry 4.0. It is based on the proposed comprehensive methodology, including the design, creation, implementation and evaluation of individual courses implemented in a VR environment. An essential feature of the new methodology is its universality and comprehensiveness. Thanks to that, it can be applied in such areas as higher education, aviation, automotive, shipbuilding, energy and many others. The paper also identifies the significant advantages and disadvantages of VR-based education that may determine its use scope and profile. In addition, on the basis of the proposed methodology, a model of a training station using VR technology has been developed to enable the realization of training classes in the field of firefighting activities that should be undertaken during the hazard arising from the operation of a numerically controlled production machine. Results of the conducted training using this station were also presented. The study showed the potential of training based on a virtual environment to improve participants’ skills and knowledge. The development and implementation of adequate courses in the VR environment can reduce costs and increase the safety and efficiency of employees’ performed activities.
Influence of Ships Docking System in the Reduction of CO2 Emissions in Container Ports
Authors: Díaz-Ruiz-Navamuel Emma , Ortega Piris Andrés , López-Diaz Alfonso-Isidro , Gutiérrez Miguel A. , Roiz Manuel Andres , Chaveli Jesus M. Oria
Published: April 2021

Taking into account the increase in the emission of greenhouse gases produced by ships, during navigation and maneuvering in port, a direct consequence of the increase in maritime traffic, the international community has developed a broad set of regulations to limit such emissions. The installation in commercial ports of automatic mooring systems by means of vacuum suction cups, thus considerably reducing the time required to carry out ship mooring and unmooring maneuvers, is a factor that is considerably influencing the decrease in emissions of polluting gases in commercial ports with high traffic. The objective of the present work is to verify the influence of the use of the automatic mooring systems via vacuum suction cups on the emissions of polluting gases produced in the facilities destined to the traffic of container ships. To do this, two different calculation methods were used, Environmental Protection Agency and Environmental and Engineering Consultancy, to then compare the results of the two and thus obtain the reduction in emissions per twenty-foot equivalent unit in these terminals during mooring maneuvers. The paper concludes with a discussion on the values of the reductions in emissions obtained and the advantages of the installation of automatic mooring systems using vacuum suction cups in commercial ports located near population centers.
Investment Leverage for Adaptive Reuse of Cultural Heritage
Authors: Pickerill Tracy
Published: April 2021

This article tracks the design of a panoptic toolkit of complementary financial (grant and endowment, tax, debt and equity) and non-financial (regulation, real estate, risk mitigation and performance, capacity building, impact metric and digital network) instruments, designed to leverage capital investment and engender collaborative partnerships, to encourage investment capital to flow to cultural heritage adaptive reuse activities. Cultural heritage activities encompass adaptive reuse and energy retrofit of built heritage structures, protecting natural eco-systems and enabling local community enterprise activities. These activities embody circular economy dimensions, that stimulate social, cultural, environmental and economic regeneration, within the global value chain. Many cultural heritage investments entail long-term time horizons, requiring patient investment strategies. Consideration of the financial landscape, with regard to capital investment leverage is as much about understanding the motivations of participants to engage in the capital markets, as about innovations in financial instruments to safeguard cultural heritage values. Individual financial instruments, within the toolkit, such as debt and equity tools, are not new and some have a long association within traditional capital markets. What is new, is a framework for the engagement of blended complementary instruments, pooled within diverse multidisciplinary collaborative social enterprise fund structures, to achieve intentional and measurable impact investment returns. Risk adjusted investment return metrics include the analysis of socio-cultural and environmental impact returns in unison with market based financial returns, including below market returns in some instances. A case study of a revolving social impact fund is provided to give a practical example of combined complementary hybrid financial instruments within a collaborative funding structure. The ultimate choice and design of blended and pooled hybrid tool combinations and hybrid fund structures will change from building to building, and community to community, but must always prioritize the need to protect people and ecosystems in parallel with saving vulnerable cultural heritage resources. The selection of tailored hybrid financial instruments, to enhance circular economy transitionary ambitions, must remain flexible within a long-term collaborative investment strategy. The key change in mindset, central to cultural heritage financial toolkit development, is the enablement of capital leverage investment strategies that prioritize people and the ecosystem over pure profit motivation.
Developing a Measurement Scale of Opposition in Tourism Public-Private Partnerships Projects
Authors: Azazz Alaa M. S. , Elshaer Ibrahim A. , Ghanem Marwa
Published: April 2021

Stakeholder opposition is reported as a central aspect of public-private partnership (PPP) failure; however, it has not gained much attention in either tourism or general PPP studies. Therefore, this study seeks to explore stakeholder opposition and develop a measurements scale of opposition in tourism PPP projects. An exploratory-sequential mixed methods approach is employed to holistically understand the subject. The results confirmed that lack of perceived value, relational strength, stakeholder management approach, and a conflict (and power) management mechanism, in addition to inadequate capabilities of stakeholders and poor experience outcomes, are antecedents of opposition to tourism PPP projects. Other notable results and their implications for theory and practice are included in the article.
The Imperativeness of Environmental Quality in China Amidst Renewable Energy Consumption and Trade Openness
Authors: Soylu Özgür Bayram , Adebayo Tomiwa Sunday , Kirikkaleli Dervis
Published: April 2021

It is widely accepted that CO2 emissions are the primary cause of climate change and environmental destruction. China, the world’s biggest carbon emitter, is the subject of this research. Utilizing the wavelet tools (wavelet correlation, wavelet coherence, multiple wavelet coherence, and partial wavelet coherence), the present study intends to capture the time-frequency dependence between CO2 emissions and renewable energy, economic growth, trade openness, and energy usage in China between 1965 and 2019. The advantage of the wavelet tools is that they can differentiate between short, medium, and long-run dynamics over the period of study. Furthermore, the study utilized the gradual shift causality test to capture the causal interconnection between CO2 emissions and the regressors. The findings from Bayer and Hanck showed a long-run relationship among the variables of interest. Furthermore, the findings from the wavelet coherence test revealed a positive relationship between CO2 emissions and economic growth and energy usage at all frequencies. Although there is a weak negative relationship between renewable energy and CO2 emissions in the short run, there is no significant co-movement between CO2 emissions and trade openness. The outcomes of the partial and multiple wavelet coherence also give credence to the outcomes of the wavelet coherence test. Lastly, the gradual shift causality test revealed a one-way causality from energy usage and economic growth to CO2 emissions. Based on the findings, suitable policy suggestions were proposed.
Flexible Continuous-Time Modeling for Multi-Objective Day-Ahead Scheduling of CHP Units
Authors: Davoodi Elnaz , Balaei-Sani Salar , Mohammadi-Ivatloo Behnam , Abapour Mehdi
Published: April 2021

Increasing applications of CHP units have turned the problem of finding the best optimization model into a significant subject for scholars. In this respect, this paper is aimed at driving a novel formulation to the multi-objective day-ahead scheduling of CHP units using Bernstein polynomials, which more optimally schedules power and heat generations as well as ramping trajectories. This procedure includes yielding an affine function that closely approximates real-time net-load and generation trajectories, which is demonstrated to have a superior performance to the conventional hourly day-ahead scheduling of CHP units based on discrete-time approximation. The problem of how to handle various objective functions by function space method is also addressed. The simulations conducted on the sample test systems, which consist of CHP systems, thermal and heat-only units, as well as thermal and electrical loads, show that the suggested multi-objective model can perfectly cover the total heat and electrical loads in terms of economic and environmental criteria. More importantly, the results indicate that the accuracy of the proposed approach renders cost saving of 1.67% and emission saving of 1.46% in comparison with the conventional hourly-based model, apart from leading to fewer ramping scarcities in real-time operations.
The Meat We Do Not Eat. A Survey of Meat Waste in German Hospitality and Food Service Businesses
Authors: Thies Annika Johanna , Schneider Felicitas , Efken Josef
Published: April 2021

Food waste is a global challenge. Detailed information on quantities and drivers is needed to provide tailored recommendations for prevention measures. Current studies on meat waste in the Hospitality and Food Service business (HaFS) sector are rare, often based on small sample sizes, and seldom use comparable reference units. The present study reports meat and meat product waste in the German HaFS business sector based on structured telephone interviews. Purchased fresh meat and meat product quantities, as well as waste during storage, due to preparation and leftovers, are captured for four different market segments. Waste ratios referring to weekly meat purchases are analysed and compared between these segments, as well as on the business-type level. In this context, the authors distinguish total and avoidable meat waste. Absolute meat waste volumes are extrapolated on a weighted base for the entire German HaFS sector. Factors influencing meat waste are identified through regression analysis in order to derive possible food waste prevention measures. The results are discussed to provide recommendations for future national monitoring, policy instruments and research.
Networking Digital Platforms and Healthcare Project Finance Bankability
Authors: Moro-Visconti Roberto
Published: April 2021

Framework: Healthcare project finance (PF) involves long-term structural investments in hospitals, typically within a public–private partnership (PPP). Banks represent the third major stakeholder, supporting the private player. Within this well-known framework, digital platforms represent a new virtual stakeholder, operating as a bridging node that incorporates information, and eases transactions. The relationships among the stakeholders are re-engineered around the platform and may be expressed with network theory patterns, even considering its multilayer extensions. Justification: As these investments are highly leveraged, especially during the construction phase, bankability represents a major sustainability concern. Objective: The research question is focused on the savings deriving from the introduction of networked digital platforms, and on their impact on bankability, shaping a new PPP model. Methodology: The study is conducted through (a) an economic–financial sensitivity analysis where digital savings impact on key PF parameters, including bankability; (b) a mathematical interpretation, based on network theory, where the stakeholders of two ecosystems—respectively, without and with a digital platform—are compared. Results: The creation of a value-adding “pie” anticipates its partitioning among the value co-creating stakeholders. This study represents an advance in the field, showing how technological innovation may improve the overall bankability and the value creation of leveraged infrastructural investments, even beyond the healthcare industry.