bluuebunny/crossref_metadata_2025 huggingface dataset:
Pervious Pavement Blocks Made from Recycled Polyethylene Terephthalate (PET): Fabrication and Engineering Properties
Authors: Ryu Byung-Hyun , Lee Sojeong , Chang Ilhan
Published: August 2020

The importance of permeable and pervious pavements in reducing urban stormwater runoff and improving water quality is growing. Here, a new pervious pavement block material based on recycled polyethylene terephthalate (PET) waste is introduced, which could contribute to reducing global plastic waste via PET’s utilization for construction material fabrication. The engineering properties and durability of recycled PET aggregate (RPA) pervious blocks are verified through flexural tests, in situ permeability tests, clogging tests, and freeze-thaw durability tests, and their cost-effectiveness is assessed by comparison with existing permeable/pervious pavers. Their engineering and economic characteristics confirm that the RPA pervious blocks are suitable for use in urban paving.
Evaluation of Brassicaceae Seedlings as Trap Plants for Bagrada Hilaris Burmeister in Caper Bush Cultivations
Authors: Arif Mokhtar Abdulsattar , Guarino Salvatore , Peri Ezio , Colazza Stefano
Published: August 2020

The caper bush, Capparis spinosa (Brassicales: Capparaceae), is intensively grown on Pantelleria Island (Trapani, Sicily, Sicilian channel) where it has been granted protected geographical indication (PGI) by the EU. On this island, Bagrada hilaris, a stink bug native of Asia and Africa, is the major pest of caper crops. Recent studies have shown the attraction of B. hilaris to volatiles of brassicaceous plants at the seedling stage. The objective of this study was to evaluate three cotyledon-stage seedlings of host plants, Brassica oleracea var. botrytis (cauliflower), Eruca sativa (rocket) and Brassica carinata (Abyssinian cabbage), as potential trap plants for B. hilaris. The relative preferences of these species were first evaluated in laboratory and field experiments, carried out during summer when the level of B. hilaris infestation was the highest. Behavioral bioassays in the laboratory conditions showed that adults of B. hilaris preferred to orient toward seedlings of B. oleracea and E. sativa over B. carinata. Field experiments confirmed these results. Then seedlings were tested in trap plant trials, by sowing them in artificial pots formed with aluminum trays and placing them in caper fields infested with B. hilaris. Results showed that E. sativa and B. oleracea diverted hundreds of B. hilaris individuals from the capers to these sources of attraction. Overall, these results suggest that B. oleracea and E. sativa seedlings used as lure inside traps or as trap plants may be a useful tool in the management of B. hilaris populations.
Unshrouding the Sphere from the Clouds: Towards a Comprehensive Conceptual Framework for Sustainable Employability
Authors: Fleuren Bram P. I. , de Grip Andries , Jansen Nicole W. H. , Kant IJmert , Zijlstra Fred R. H.
Published: August 2020

Sustainable employability refers to individuals’ long-term abilities to work and remain employed. Despite its societal importance in the light of aging populations and rapidly changing skill demands, sustainable employability still requires further definition and conceptualization. As such, the present paper aims to define and conceptualize sustainable employability comprehensively by reviewing existing studies on the concept. Additionally, the paper discusses and integrates sustainable employment, sustainable work, and sustainable work ability into our broad framework of sustainable employability. The resulting conceptual framework positions sustainable employability as an inherently longitudinal multidimensional individual characteristic that is the outcome of complex interactions between individual-, work- and work environmental characteristics. This framework enables researchers to identify the employment characteristics that promote sustainable employability and thereby comprise sustainable employment. Finally, the framework links to notions of person-environment fit, and job- and organizational design to create a basis for future research on sustainable employability.
Progressing Climate Changes and Deteriorating Air Quality as One of the Biggest Challenges of Sustainable Development of the Present Decade in Poland
Authors: Gaj Kazimierz , Miller Urszula , Sówka Izabela
Published: August 2020

Among the biggest challenges facing our civilization is slowing down the rate of climate change and improving air quality in cities. This cannot be achieved in isolation from the sustainability and intensification of relevant research. The aim of this Special Issue: Current Trends in Emission Control and Forecasting of Air Quality and Climate Changes is to publish selected high-quality papers from the 15th Scientific Conference POL-EMIS 2020: Current Trends in Air and Climate Protection—Control Monitoring, Forecasting, and Reduction of Emissions (19–21 October 2020, Wroclaw) and other papers related to the development of: low-emission fuels, industrial technologies, and energy generation, including renewable energy sources (RES); technology for reducing/eliminating emissions from low municipal sources and transport; innovative methods of waste gas purification; emission and immission control methods (including odors); prospective ways of counteracting climate change; indoor air protecting methods; development of mathematical modeling of air quality; new directions in forecasting the effects of air pollution and climate change and air quality management.
“Mobility as a Service” Platforms: A Critical Path towards Increasing the Sustainability of Transportation Systems
Authors: Cruz Carlos Oliveira , Sarmento Joaquim Miranda
Published: August 2020

Urban mobility is experiencing a profound change. Mobility patterns are becoming more complex, and typical home–work–home travel is no longer the rule, as journeys tend to connect multiple points in a rather inconstant pattern. This has changed the approach to transport planning. Existing transportation planning and operation approaches have been focussed on the ability to identify and forecast typical home–work/school–home travel and subsequently plan the transport system accordingly. The traditional approach has been: Forecast - > plan - > deliver. New mobility patterns and mobility solutions are characterised by greater flexibility, taking advantage of the “sharing concept” and simultaneously providing solutions that have lower greenhouse gas (GHG) emissions. These dynamics and an evolving environment raise several new challenges at different levels, fostering the development of Mobility-as-a-Service (MaaS). This system transforms the physical transportation system into a commodity and takes advantage of the internet of things (IoT). However, the onset of MaaS solutions is anything but linear. Several business models have emerged, with different partners originating from different industries (e.g., technological, transport operators, infrastructure managers, etc.) developing their own solutions, often in competition with others. It is not unusual to find different MaaS solutions in the same city, which integrate different solutions. This paper intends to provide an analysis on the main challenges affecting mobility in general, and MaaS in particular, as well as the main business models used for delivering MaaS solutions. The paper uses a case study in Lisbon to illustrate some of the challenges.
The Discrepancy between As-Built and As-Designed in Energy Efficient Buildings: A Rapid Review
Authors: Eon Christine , Breadsell Jessica K. , Byrne Joshua , Morrison Gregory M.
Published: August 2020

Energy efficient buildings are viewed as one of the solutions to reduce carbon emissions from the built environment. However, studies worldwide indicate that there is a significant gap between building energy targets (as-designed) and the actual measured building energy consumption (as-built). Several underlying causes for the energy performance gap have been identified at all stages of the building life cycle. Focus is generally on the post-occupancy stage of the building life cycle. However, issues relating to the construction and commissioning stages of the building are a major concern, though not usually researched. There is uncertainty on how to address the as-designed versus as-built gap. The objective of this review article is to identify causes for the energy performance gap in buildings in relation to the post-design and pre-occupancy stages and review proposed solutions. The methodology applied in this research is the rapid review, which is a variant of the systematic literature review method. Findings suggest that causes for discrepancies between as-designed and as-built energy performance during the construction and commissioning stages relate to a lack of knowledge and skills, lack of communication between stakeholders and a lack of accountability for building performance post-occupancy. Recommendations to close this gap during this period include better training, improved communication standards, collaboration, energy evaluations based on post-occupancy performance, transparency of building performance, improved testing and verification and reviewed building standards.
Accountability through Environmental and Social Reporting by Wind Energy Sector Companies in Spain
Authors: Fierro José A. Moseñe , Sanagustín-Fons M. Victoria , Álvarez Alonso César
Published: August 2020

At present, energy transition is a crucial phenomenon that is at the very heart of governmental policies. There are a huge number of stakeholders involved in the change, but among these, the main socioeconomic actors that affect environmental and social impacts are energy companies. In this research, we analyze their institutionalized role in the Spanish wind energy sector, in the framework of the ecological movement. We consult the special views, opinions and motivations given by managers responsible for Institutional Relations in the main wind energy companies in Spain, and their perceptions of environmental reporting. We therefore tackle aspects related to the drivers of the social and environmental disclosure of environmental and social information. Research has been carried out based on documentary secondary analysis, and the use of a qualitative method with semi-structured interviews has revealed tendencies and pressures in the sector. Results suggest that the social context and public opinion pressure organizations to reveal environmental and social information. We also put forward how information is conveyed to the society through accountability practices, and the different institutionalized ways in which this is achieved.
Validation of Francis–Kaplan Turbine Blade Strike Models for Adult and Juvenile Atlantic Salmon (Salmo Salar, L.) and Anadromous Brown Trout (Salmo Trutta, L.) Passing High Head Turbines
Authors: Vikström Linda , Leonardsson Kjell , Leander Johan , Shry Samuel , Calles Olle , Hellström Gustav
Published: August 2020

The negative effects of hydroelectric power (HEP) on salmonid populations has long been recognized and studied. Downstream passage through turbines may potentially constitute a significant source of mortality for both juvenile and adult fish in regulated rivers. Numerical models have been developed to calculate turbine passage mortality based on the probability of collision with the turbine blades, but although widely used in management and conservation, their performance is rarely validated in terms of the accuracy and bias of the mortality estimates. In this study, we evaluated commonly used blade strike models for Kaplan and Francis turbines by comparing model predictions with observed passage mortalities for juvenile 13–27 cm and adult 52–94 cm Atlantic salmon (Salmo salar, L.) and anadromous brown trout (Salmo trutta, L.) acquired by acoustic telemetry. Predictions made for juveniles aligned closer with observed mortality for both Kaplan and Francis turbines (within 1–3% percentage points). However, the model severely underestimated the mortality of adult fish passing through Francis turbines, with up to 50% percentage points difference between predicted and observed mortalities. Furthermore, the model did not capture a clear negative correlation between mortality and discharge observed for salmon between 50–60 cm (grilse). We concluded that blade strike models are a useful tool for quantifying passage mortality for salmonid smolts passing large, high-head turbines, but that the same models should be used with care when trying to estimate the passage mortality of kelts in iteroparous populations. We also concluded that the major cause of passage mortality for juveniles is injury by collision with the turbine blade, but that other factors seem to contribute substantially to the passage mortality of kelts. Our study reports low mortality for smolts up to 27 cm passing through Kaplan and Francis turbines (0–12%), but high mortality for salmon over 50 cm passing though Francis turbines (56–81%).
Moderators of Change in Physical Activity Levels during Restrictions Due to COVID-19 Pandemic in Young Urban Adults
Authors: Karuc Josip , Sorić Maroje , Radman Ivan , Mišigoj-Duraković Marjeta
Published: August 2020

This study aimed to investigate moderators of change in physical activity (PA) levels after 30 days (30-d) of restrictions due to the COVID-19 pandemic in young adults. This research is an extension of the CRO-PALS study and analyses for this study were performed on young adults (20–21 y.o., n = 91). Moderate-to-vigorous physical activity (MVPA), sport participation, student and socioeconomic status were assessed pre- and post-30-d restrictions. Differences in MVPA levels were examined using repeated-measures ANOVAs. After 30-d of restrictions, the drop in MVPA in females (−64.8 min/day, p = 0.006) and males was shown (−57.7 min/day, p < 0.00). However, active participants decreased, while non-active peers increased their MVPA level (−100.7 min/day, p < 0.00, and +48.9 min/day, p = 0.051, respectively). Moreover, students and non-students decreased their MVPA level (−69.0 min/day, p < 0.00, and −35.0 min/day, p = 0.22, respectively) as well as sport participants and non-sport participants (−95.3 min/day, p < 0.001, and −53.9 min/day, p < 0.00, respectively). Our results suggest that 30-d of restrictions equally affect females and males where the evident drop in MVPA is seen in both genders. However, active people decreased their PA level during lockdown and the opposite pattern was seen in non-active peers, where restrictions for them can represent an opportunity to change their behavior in a positive direction in order to gain better health status.
Sustainable Careers of Teachers of Languages Other than English (LOTEs) for Sustainable Multilingualism in Chinese Universities
Authors: Guo Yadong , Sit Helena , Bao Min
Published: August 2020

This paper explores Chinese universities’ policies related to the research performance review of language other than English (LOTE) teachers with respect to promotion. Drawing on a variety of data including policy documents and interviews with 32 individual LOTE teachers from 16 universities, we identified that Chinese universities have unreasonable expectations in terms of research publications and research funding for language teachers, including LOTE teachers, which make their career prospects unsustainable. We also evaluated the contextual realities for LOTE teachers regarding academic publication and research funding, and identified a widespread feeling of anxiety and stress among LOTE teachers. Though LOTE teachers are committed to undertaking various efforts to overcome challenges in their research performance review for promotion, we call on university management and policy makers to provide additional support to LOTE teachers, so that they can develop sustainable careers and universities, including Chinese universities, will be able to rely on sustainable multilingualism.
The Determinants of ESG Rating in the Financial Industry: The Same Old Story or a Different Tale?
Authors: Crespi Fabrizio , Migliavacca Milena
Published: August 2020

Corporate social performance (CSP) and, in particular, environmental, social and governance (ESG) ratings became a focal point for scholars, practitioners and policy makers over the last decade. In order to better understand the dynamics underlying CSP within the financial industry, we investigate its determinants. Adding to the debate regarding CSP antecedents, we draw on a world-wide sample of 727 financial firms operating in twenty-two countries within the period 2006–2017 and look for firm, country and temporal factors that affect CSP. The main results of our empirical analyses provide evidence that financial firms’ ESG scores are growing on a linear trend over time, and such tendency is enhanced by their size and profitability, together with the economic and social development of the country within which they operate. Our findings also show that the environmental, social and governance pillars follow independent patterns.
Blockchain-Based Cyber Threat Intelligence System Architecture for Sustainable Computing
Authors: Cha Jeonghun , Singh Sushil Kumar , Pan Yi , Park Jong Hyuk
Published: August 2020

Nowadays, the designing of cyber-physical systems has a significant role and plays a substantial part in developing a sustainable computing ecosystem for secure and scalable network architecture. The introduction of Cyber Threat Intelligence (CTI) has emerged as a new security system to mitigate existing cyber terrorism for advanced applications. CTI demands a lot of requirements at every step. In particular, data collection is a critical source of information for analysis and sharing; it is highly dependent on the reliability of the data. Although many feeds provide information on threats recently, it is essential to collect reliable data, as the data may be of unknown origin and provide information on unverified threats. Additionally, effective resource management needs to be put in place due to the large volume and diversity of the data. In this paper, we propose a blockchain-based cyber threat intelligence system architecture for sustainable computing in order to address issues such as reliability, privacy, scalability, and sustainability. The proposed system model can cooperate with multiple feeds that collect CTI data, create a reliable dataset, reduce network load, and measure organizations’ contributions to motivate participation. To assess the proposed model’s effectiveness, we perform the experimental analysis, taking into account various measures, including reliability, privacy, scalability, and sustainability. Experimental results of evaluation using the IP of 10 open source intelligence (OSINT) CTI feeds show that the proposed model saves about 15% of storage space compared to total network resources in a limited test environment.
Variability of Water Balance under Climate Change Scenarios. Implications for Sustainability in the Rhône River Basin
Authors: Pérez-Cutillas Pedro , Baños Páez Pedro , Banos-González Isabel
Published: August 2020

The Rhône basin is considered a complex river socio-ecological system, which houses numerous socioeconomic activities closely linked to its river courses, as well as competition between the different users of these water resources. Likewise, its increasing vulnerability to climate change highlights the need to assess the potential effects of a set of climate scenarios to assist the management of these resources. With this aim, we have analysed the effects of five scenarios on different environmental zones of the basin characterised by altitudinal features, using the “Water Yield” hydrological module of the InVEST model. The model outputs show that the Rhône basin will have significant discharge water variations and changes in the seasonality of the hydrological regime, being able to trigger serious economic and environmental effects under the simulated scenarios. Regarding these altitudinal environmental zones, results show important differences in the final water balance, resulting in the mountain and subalpine zones being the most affected by these scenarios. The uncertainty in the availability of water resources and the need for its sustainable management will require the establishment of important adaptations to the new challenges imposed by these scenarios, particularly in alpine zones, due to its sensitivity and fragility to climate change.
Evaluating Climate Change Governance Using the “Polity–Policy–Politics” Framework: A Comparative Study of China and the United States
Authors: Gong Xiaochen , Liu Yunxia , Sun Tao
Published: August 2020

Climate change governance has attracted increasing academic interest. However, holistic reviews on the dynamic complexity and stability of climate change governance have received little attention. This study addresses this research gap by conducting a structurally comparative analysis between China and the United States based on the “polity–policy–politics” framework. Three analytical facets are identified for each dimension of the framework, including institutional settings, the nature of policy mechanisms used in climate change practices, and the degree of multi-actors’ involvement under two governance scenarios. Results show that climate change governance in the two countries differs substantially. The process of climate governance in China is driven by strong leadership at the national level alongside policy continuity, whereas well-functioning market mechanisms and robust regulatory systems are still lacking. A more meaningful involvement of social forces is also critically needed when addressing increasingly complex and uncertain climate change. By contrast, the US federal climate policies are considered inadequate compared with sub-national actions and persistent efforts of non-state actors, to which the success of climate practices is largely attributed. This study systematically uncovers the divergence of climate mitigation under different political–institutional contexts, and evaluates the effectiveness of governance arrangement in the two countries, which helps policymakers to understand the potential of improving the performance of climate change governance.
Disproportioned Performances of Protected Areas in the Beijing-Tianjin-Hebei Region
Authors: Wen Hui , Chen Jiquan , Wang Zhifang
Published: August 2020

Designing and managing protected areas (PAs) has always been value-based. While all PAs provide unique values in a region, it has not been documented if their functional contributions are proportional to their land area. A challenge also arises from the governance of PAs due to differences in supporting resources, legislations, conservation goals, and guidance. Using the Beijing-Tianjin-Hebei (BTH) region as our testbed, we designed a study to test the hypothesis that the functional contributions of 84 PAs, measured by various ecosystem service values, vulnerability and human footprint (Hf), are not proportional to land areas relative to the regional total. Disproportionate performances are partially due to the governance (i.e., national, provincial and local) and the dominant ecosystem type of each PA. We confirm our hypothesis that the functional contributions of PAs in the BTH region far exceed their total land area, with forested PAs performing better. The functional measures of PAs are highly correlated but not equally provided among PA types and under different governances. Both governance and PA type play significant roles in determining functional values and human influences, but no significant interactive influences were detected. Results from this study are updated shreds of evidence for promoting PAs as well as for establishing new PAs through the ongoing Ecological Red Lines program.
Reducing Commuter CO2 Footprint through Transit PV Electrification
Authors: Dalala Zakariya M. , Alnawafa Mohammad , Saadeh Osama , Alnawafa Emad
Published: August 2020

The transport sector is a major consumer of energy, and thus a major contributor to greenhouse gas (GHG) emissions. The introduction of Electric Vehicles (EVs) has helped in mitigating some of the energy demands presented by the transportation system, though the electrical energy still needs to be secured through conventional and renewable resources. Searching for a new power source for vehicles has become necessary, due to incentives and policy initiatives to counter fossil greenhouse gas emissions. This study provides a new efficient Photovoltaic (PV) powered transportation system, which may be utilized instead of traditional public transportation systems. The main idea is to transform the transportation systems used by large campuses into green systems by deploying educated scheduling approaches and utilizing existing renewable energy infrastructures. The German Jordan University (GJU) campus was chosen as a case study. The presented work describes a comprehensive methodology to exploit the full capacity of the existing PV power plant coupled with the rescheduling of the transportation fleet to meet the energy availability and consumption demand. The proposed technique audits the existing renewable energy power plants for optimum operation. The results validate the efficiency of the proposed system and its ability to reduce carbon dioxide (CO2) emissions compared to traditional transportation systems with an acceptable payback period.
Scripting, Situating, and Supervising: The Role of Artefacts in Collaborative Practices
Authors: Molinengo Giulia , Stasiak Dorota
Published: August 2020

While calls for cross-sectoral collaboration have become a recurrent motif in sustainability-oriented policymaking and research, the practical realization of such processes presents significant challenges. The hope for “collaborative advantage” often gets traded for the experience of “collaborative impasse”, namely those moments in which collaboration gets stuck. To better understand the reasons underlying such impasses, the study focuses on the impact of facilitation artefacts—objects designed and used in collaborative practices. The study proposes an analytical heuristic of collaborative practices to investigate the data collected in an explorative study, tracing artefacts across three different communicative modes of deliberation. Detailed analysis of the case, grounded in audio–visual material, semi-structured interviews, photo documentation, and participatory observation, shows that such artefacts substantially influence the structure of the emerging interaction order in a given setting, and that unscripted and unsituated artefacts might contribute to reinforcing those communicative patterns that collaboration aims to contrast. The study identifies three relevant practices in facilitation work, in order to steer emerging interaction orders away from exclusionary dynamics: scripting, situating, and supervising. Although emerging from the micro-analysis of artefacts, these practices might apply to other spheres of collaboration and serve as orientation for successful collaborative processes.
Minimizing the Gap between Expectation and Ability: Strategies for SMEs to Implement Social Sustainability Practices
Authors: Chowdhury Priyabrata , Shumon Rezaul
Published: August 2020

Traditionally, it is believed that small- and medium-sized enterprises (SMEs) do not have enough ability to adopt and persistently practice social sustainability. This is because SMEs are not capital-intensive companies and neither are their returns nor skills. At the same time, the wellbeing of the employees in SMEs cannot be ensured and sustainable development goals cannot be achieved without making SMEs socially sustainable, as they account for the majority of world businesses. Moreover, the expectation of the stakeholders and subsequent pressure on SMEs to practicing social sustainability remains. Such pressure from the stakeholders creates a “mismatch problem” between stakeholders’ expectations and SMEs’ abilities to adopt socially sustainable practices. This study aims to explore what factors are responsible for this “mismatch problem”, and how SMEs can handle this mismatch to be socially sustainable firms. Based on a rigorous literature review, this study reveals that both internal issues, such as a lack of resources and awareness, and external issues, such as the non-existence of a tailored social sustainability standard for SMEs and lack of institutional support, are responsible for this gap. This study develops several propositions that highlight the requirements in various situations and provides strategies outlining the implications for SMEs and their stakeholders to make SMEs socially sustainable. Overall, this study discloses that cooperative support from stakeholders, especially during a disruption such as the COVID-19 pandemic, a finance mechanism, the development of awareness and human capital in SMEs, and a unified standard for SMEs are likely to improve social sustainability practices in SMEs.
Application of Artificial Neural Networks for Natural Gas Consumption Forecasting
Authors: Anagnostis Athanasios , Papageorgiou Elpiniki , Bochtis Dionysis
Published: August 2020

The present research study explores three types of neural network approaches for forecasting natural gas consumption in fifteen cities throughout Greece; a simple perceptron artificial neural network (ANN), a state-of-the-art Long Short-Term Memory (LSTM), and the proposed deep neural network (DNN). In this research paper, a DNN implementation is proposed where variables related to social aspects are introduced as inputs. These qualitative factors along with a deeper, more complex architecture are utilized for improving the forecasting ability of the proposed approach. A comparative analysis is conducted between the proposed DNN, the simple ANN, and the advantageous LSTM, with the results offering a deeper understanding the characteristics of Greek cities and the habitual patterns of their residents. The proposed implementation shows efficacy on forecasting daily values of energy consumption for up to four years. For the evaluation of the proposed approach, a real-life dataset for natural gas prediction was used. A detailed discussion is provided on the performance of the implemented approaches, the ANN and the LSTM, that are characterized as particularly accurate and effective in the literature, and the proposed DNN with the inclusion of the qualitative variables that govern human behavior, which outperforms them.
Evaluation of Gas Emissions, Energy Consumption and Production Costs of Warm Mix Asphalt (WMA) Involving Natural Zeolite and Reclaimed Asphalt Pavement (RAP)
Authors: T. Calabi-Floody Alejandra , A. Valdés-Vidal Gonzalo , Sanchez-Alonso Elsa , A. Mardones-Parra Luis
Published: August 2020

Asphalt mixture is the most widely used material in road construction, and the industry is developing more sustainable technologies. Warm mix asphalt (WMA) is a promising alternative as it saves energy, reduces fuel consumption and generates fewer gas and fume emissions, while maintaining a similar performance to hot mix asphalt (HMA). This paper presents an evaluation of the gas emissions at laboratory scale, as well as the energy consumption and production costs, of five types of WMA with the addition of natural zeolite. The control mixture was a HMA manufactured at 155 °C. The mixtures evaluated were two WMA manufactured at 135 °C with 0.3% and 0.6% natural zeolite, and three WMA with partial replacement of raw materials by 10%, 20% and 30% of reclaimed asphalt pavement (RAP); these mixtures, called WMA–RAP, were manufactured at 125 °C, 135 °C and 145 °C, respectively. The results indicated that all the mixtures evaluated reduced CO and CO2 emissions by 2–6% and 17–37%, respectively. The energy consumption presented a 13% decrease. In the current situation, the production costs for WMA with 0.3 and 0.6% natural zeolite are slightly higher than the control mixture, because the saving achieved in fuel consumption is lower than the current cost of the additive. On the other hand, WMA manufactured with the addition of natural zeolite and RAP could produce cost savings of up to 25%, depending on the amounts of RAP and natural zeolite used.
The Impact of Social Media on the Brand Capital of Famous People
Authors: Wróblewski Łukasz , Grzesiak Mateusz
Published: August 2020

The article is of a research nature. The aim of the article is to identify the role of social media in shaping personal brand. To this end, the first part discusses the concept of personal brand, as well as components of brand capital in the case of famous people, including consumer-based capital. Attention was also paid to the great importance of social media and the growing role of their users in the process of shaping personal brand. Based on the analysis of the source literature, a research gap was identified, related to the lack of empirical verification of the relationship between users’ online activity and and capital of famous people, also known as celebrities, associated with artistic and cultural activities. The article uses the results of the direct research carried out in the period 2019–2020. The second (empirical) part of the article presents research hypotheses, methodology, as well as results and conclusions from the research. Based on 26 in-depth individual interviews that were conducted with people famous in Poland (mainly engaged in artistic and cultural activities) and surveys of a group of 324 social media users, it was shown, among others, that online activity of Internet users stimulates the brand capital of famous people. Statistically significant relationships were observed for such components of the personal brand as awareness/associations with the personal brand and for the relationship regarding the perception of the quality of activities carried out by a famous person.
Conservation Agriculture and Integrated Pest Management Practices Improve Yield and Income while Reducing Labor, Pests, Diseases and Chemical Pesticide Use in Smallholder Vegetable Farms in Nepal
Authors: Paudel Sulav , Sah Lalit P. , Devkota Mukti , Poudyal Vijaya , Prasad P.V. Vara , Reyes Manuel R.
Published: August 2020

Improving smallholder vegetable farms are critical for improving food security and livelihoods of people in low-income countries. Vegetable production is labor intensive and prone to pests and diseases. Conservation agriculture (CA) and integrated pest management (IPM) practices provide options to increase yields and minimize the use of chemical pesticides. We compared integration of CA and IPM practices (improved alternative system) with farmers’ traditional practice (conventional system) under replicated on-farm tests in four different locations (Lalitpur, Banke, Surkhet, and Dadeldhura) in Nepal. Data on yield, benefit–cost ratio (B:C), labor requirement, insect and disease infestation, and pesticide sprays on five major vegetable crops (tomato, cucumber, bitter gourd, cabbage, cauliflower) were measured. In tomatoes, cucumbers, and bitter gourds, the improved alternative system produced a significantly higher yield, greater benefit-cost ratio, reduced labor, decreased the infestation of pests and diseases, and required fewer pesticidal sprays. Average yield and net income were superior in cabbages and cauliflowers, but nonsignificant. Improved alternative system for all the vegetables were sprayed significantly fewer times than the conventional system. Overall, the improved alternative system for vegetable crops contributed not only to the improved income and livelihoods of people, but also can improve environment and human health due to the reduced use of pesticides. Further research on scaling these improved alternative practices through appropriate farmer organizations, and government and non-government actors can enhance the adoption of CA and IPM practices by smallholder vegetable producers.
Factors Affecting Intention to Adopt Cloud-Based ERP from a Comprehensive Approach
Authors: Ahn Byungchan , Ahn Hyunchul
Published: August 2020

To enhance the sustainability of business operations, enterprises have interests in enterprise resource planning (ERP) transitions from an existing on-premise method to a cloud-based system. This study conducts a comprehensive analysis using the technology-organization-environment, diffusion of innovation, and the model of innovation resistance frameworks. The empirical analysis shows that the factors of organizational culture, regulatory environment, relative advantage, trialability, and vendor lock-in all had a significant influence on the intention to adopt cloud-based ERP, while information and communications technology skill, complexity, observability, data security, and customization had no significant influence on the intention to adopt cloud-based ERP. This study’s findings provide meaningful guidance for companies that want to adopt cloud-based ERP, governments that support enterprise digitalization, and vendors who sell cloud-based ERP systems.
Integrating Key Insights of Sociological Risk Theory into the Ecosystem Services Framework
Authors: Peter Sophie
Published: August 2020

Environmental risks give urgency to the need to understand the society–nature relationship. While the ecosystem services (ES) framework allows analysis of interrelationships between biophysical supply and human demand for natural resources, further research is needed to understand what drives societal demand for ES. Here, I explore how incorporation of the key sociological theories of risk (systems theory, ‘world risk society’, and cultural theory of risk) can advance this understanding. By examining these theories, the following key insights were identified: (1) A deeper understanding of societal structures and risk perception helps to understand culturally driven patterns of ES demand; (2) sociological ES research must use inter- and transdisciplinary methods to understand the drivers of ES demand and risk perception. It must also link this understanding to the natural sciences’ knowledge of the drivers of ES supply if it is to identify new instruments of environmental governance; (3) while anthropocentric in character, the ES framework, especially one that is modified by the concept of risk, enables society to reflect on its role as a proactive part of a social–ecological system, rather than a passive victim of nature’s whims. This change in perspective may prove to be a key step in achieving sustainable development.
Energy Budgeting, Data Envelopment Analysis and Greenhouse Gas Emission from Rice Production System: A Case Study from Puddled Transplanted Rice and Direct-Seeded Rice System of Karnataka, India
Authors: Basavalingaiah Kariyaiah , Ramesha Y. M. , Paramesh Venkatesh , Rajanna G. A. , Jat Shankar Lal , Dhar Misra Shiva , Kumar Gaddi Ashok , Girisha H. C. , Yogesh G. S. , Raveesha S. , Roopa T. K. , Shashidhar K. S. , Kumar Bipin , El-Ansary Diaa O. , Elansary Hosam O.
Published: August 2020

The energy consumption pattern and greenhouse gas (GHG) emission of any rice production system is important to know the sustainability of varied cultivation and establishment technique. This study was conducted to determine the energy use pattern, GHG emission and efficiency of rice farms in puddled transplanted (PTR, rainfed) and direct-seeded rice (DSR, irrigated) production systems in Karnataka, India. The energy indices and GHG emission of different input and output in a rice production system were assessed by using energy and carbon equivalence. The efficiency of PTR and DSR farms were identified using data envelopment analysis (DEA) and energy optimization was ascertained. The key finding was excessive use of non-renewable energy inputs was observed for the PTR (92.4%) compare to DSR (60.3%) methods. The higher energy use efficiency (7.3), energy productivity (0.3 kg MJ−1) and energy profitability (6.3) were mainly attributed to the large decrease in energy inputs under DSR. The DEA showed efficiency for 26 PTR farms in comparison for 87 DSR farms. The mean technical efficiency value highlighted the scope for saving energy by 6% and 2% in PTR and DSR, respectively and showed an economic reduction of $405.5/ha with PTR versus $163.3/ha with the DSR method if these inefficient farms perform efficiently. The GHG emissions revealed that the total emissions for PTR versus DSR production caused by on-farm emissions were 86% and 65%, respectively. The DSR method also had a higher carbon efficiency ratio and carbon sustainability index (10.1 and 9.1, respectively). Thus, adoption of DSR method is imperative for reduction of energy consumption and GHG emissions to achieve the carbon sustainability.
Immersive Virtual Reality-Aided Conjoint Analysis of Urban Square Preference by Living Environment
Authors: Kim Seungnam , Kim Jaecheol , Kim Beakchan
Published: August 2020

Though several studies have explored the ways in which people perceive the qualities of urban squares, the influence of living environments on such perceptions has received little attention. To fill this gap, this study examined differences in preferences for urban square design elements, particularly, the ratio of the width of a public space to the height of the surrounding buildings (D/H ratio), square size, and façade details, among people with different living environments. Virtual reality simulation techniques were used in controlled experiments with 100 participants of various nationalities, mostly Koreans, and conjoint analysis was applied to determine what combination of design elements most influenced urban square preferences. Participants experienced eight virtual squares designed with different combinations of the three design elements and assessed them based on five indicators of the quality of urban squares. Among the three design elements, the D/H ratio most significantly influenced the perceptions of quality, regardless of participants’ living environments. We conclude that the level of experience in various urban environments may affect people’s familiarity with these environments and their spatial perception and preferences. We thus suggest that socio-cultural differences related to users’ living environments should receive more attention in urban design practice. We also demonstrate that the emerging combination of immersive virtual reality technology and conjoint analysis can function as a useful tool for urban design research.
The Vertical Differences in the Change Rates and Controlling Factors of Soil Organic Carbon and Total Nitrogen along Vegetation Restoration in a Subtropical Area of China
Authors: Cao Zhiwei , Fang Xi , Xiang Wenhua , Lei Pifeng , Peng Changhui
Published: August 2020

The study was to investigate the change patterns of soil organic carbon (SOC), total nitrogen (TN), and soil C/N (C/N) in each soil sublayer along vegetation restoration in subtropical China. We collected soil samples in four typical plant communities along a restoration chronosequence. The soil physicochemical properties, fine root, and litter biomass were measured. Our results showed the proportion of SOC stocks (Cs) and TN stocks (Ns) in 20–30 and 30–40 cm soil layers increased, whereas that in 0–10 and 10–20 cm soil layers decreased. Different but well-constrained C/N was found among four restoration stages in each soil sublayer. The effect of soil factors was greater on the deep soil than the surface soil, while the effect of vegetation factors was just the opposite. Our study indicated that vegetation restoration promoted the uniform distribution of SOC and TN on the soil profile. The C/N was relatively stable along vegetation restoration in each soil layer. The accumulation of SOC and TN in the surface soil layer was controlled more by vegetation factors, while that in the lower layer was controlled by both vegetation factors and soil factors.
The Political Economy of the Sustainable Development Goals (SDGs): Does Performance on the SDGs Affect Re-Election?
Authors: Kroll Christian , Zipperer Vera
Published: August 2020

While the economic voting hypothesis is a well-researched approach to explain behavior at the ballot box, a broader perspective of economic, social and environmental issues regarding a government’s chances to get re-elected is still missing in the literature. In this context, this paper makes use for the first time of the Agenda 2030 with its 17 Sustainable Development Goals (SDGs) as the comprehensive policy framework that all 193 UN member states have pledged to achieve. The objective of our study is therefore to examine the relationship between SDGs’ progress and the likelihood of re-election. Our analysis of 124 countries regarding performance on the SDGs over time and voting behavior shows: the chance to get re-elected as a government significantly increases for progress made towards SDG 5 (Gender Equality). Notable differences are also found for high-income vs. low-income countries. The fact that governments are rewarded at the ballot box for successful action towards gender equality is encouraging, while the mechanisms behind other SDG areas deserve more research.
Stochastic Analysis of Electron Transfer and Mass Transport in Confined Solid/Liquid Interfaces
Authors: Favaro Marco
Published: August 2020

Molecular-level understanding of electrified solid/liquid interfaces has recently been enabled thanks to the development of novel in situ/operando spectroscopic tools. Among those, ambient pressure photoelectron spectroscopy performed in the tender/hard X-ray region and coupled with the “dip and pull” method makes it possible to simultaneously interrogate the chemical composition of the interface and built-in electrical potentials. On the other hand, only thin liquid films (on the order of tens of nanometers at most) can be investigated, since the photo-emitted electrons must travel through the electrolyte layer to reach the photoelectron analyzer. Due to the challenging control and stability of nm-thick liquid films, a detailed experimental electrochemical investigation of such thin electrolyte layers is still lacking. This work therefore aims at characterizing the electrochemical behavior of solid/liquid interfaces when confined in nanometer-sized regions using a stochastic simulation approach. The investigation was performed by modeling (i) the electron transfer between a solid surface and a one-electron redox couple and (ii) its diffusion in solution. Our findings show that the well-known thin-layer voltammetry theory elaborated by Hubbard can be successfully applied to describe the voltammetric behavior of such nanometer-sized interfaces. We also provide an estimation of the current densities developed in these confined interfaces, resulting in values on the order of few hundreds of nA·cm−2. We believe that our results can contribute to the comprehension of the physical/chemical properties of nano-interfaces, thereby aiding to a better understanding of the capabilities and limitations of the “dip and pull” method.