bluuebunny/crossref_metadata_2025 huggingface dataset:
Coffee, Migration and Climatic Changes: Challenging Adaptation Dichotomic Narratives in a Transborder Region
Authors: Ruiz-de-Oña Celia , Rivera-Castañeda Patricia , Merlín-Uribe Yair
Published: November 2019

The narratives of migration as adaptation and in situ adaptation are well established in mainstream adaptation policy and are usually presented as independent and opposing trends of action. A common and fundamental element of such narratives is the depoliticized conception of both migration and adaptation. Using a trans-scalar approach, we address the migration–coffee–climate change nexus: first at a regional scale, at the conflictive border of Guatemala–Mexico, to show the contradiction between the current Central American migratory crisis and the narrative of migration as adaptation; second, at a local scale and from an ethnographic perspective, we focus on the process of in situ adaptation in shade-grown coffee plots of smallholder coffee farmers in the Tacaná Volcano cross-border region, between Chiapas and Guatemala. We argue that the dichotomy “in situ adaptation” versus “migration as adaptation” is not useful to capture the intertwined and political nature of both narratives, as illustrated in the case of the renovation of smallholders’ coffee plots in a context of climatic changes. We provide elements to contribute towards the repolitization of adaptation from an integral perspective.
Crop Vulnerability to Weather and Climate Risk: Analysis of Interacting Systems and Adaptation Efficacy for Sustainable Crop Production
Authors: Elias Emile H. , Flynn Robert , Idowu Omololu John , Reyes Julian , Sanogo Soumaila , Schutte Brian J. , Smith Ryann , Steele Caitriana , Sutherland Carol
Published: November 2019

Climate change is increasing mean and extreme temperatures in the Southwestern United States, leading to a suite of changes affecting agricultural production. These include changes in water, soils, pathogens, weeds, and pests comprising the production environment. The aim of this synthesis is to describe the anticipated leading agricultural pressures and adaptive responses, many of which are near-term actions with longer-term consequences. In the semiarid Southwestern United States, climate change is expected to increase water scarcity. Surface water shortage is the leading reason for recent diminished crop yields in the Southwest. Drought and lack of water represent the leading regional weather-related cause of crop loss from 1989 to 2017. Thus, water scarcity has been and will continue to be a critical factor leading to regional crop vulnerability. Soils, pathogens, weeds, and insects are components of the agricultural production environment and are directly influenced by near-term weather and long-term climate conditions. Field crops, vegetable crops, and perennial crops have unique production requirements and diverse management options, many already used in farm management, to cope with production environment changes to build climate resilience. Farmers and ranchers continuously respond to changing conditions on a near-term basis. Long-term planning and novel adaptation measures implemented may now build nimble and responsive systems and communities able to cope with future conditions. While decision-support tools and resources are providing increasingly sophisticated approaches to cope with production in the 21st century, we strive to keep pace with the cascading barrage of inter-connected agricultural challenges.
Sustainability in the University: A Study of Its Presence in Curricula, Teachers and Students of Education
Authors: Solís-Espallargas Carmen , Ruiz-Morales Jorge , Limón-Domínguez Dolores , Valderrama-Hernández Rocío
Published: November 2019

This work forms part of the R + D + i ‘Training project in Spanish universities for professionals as agents of change in order meet the challenges facing society’ (Educación e Innovación Social para la Sostenibilidad (EDINSOST) 2017–2019). The purpose is to analyse the presence of sustainability in terms of curriculum content and training in competence for students, teachers and the curricula of Science of Education degree courses at the University of Seville. In this context, the curricula of the Degree in Early Childhood Education, Primary Education and Pedagogy have been analysed. Two questionnaires have been drawn up, and four reflection groups have been created—in which, a total of 49 teachers and 170 students have participated. The results show that there is a low presence of sustainability in Science of Education degree courses. The teachers express the opinion that they are engaged in sustainable initiatives and have an interest in ethical models. The students express a high degree of interest in receiving sustainability training. Findings provide information for introducing innovation into the university curriculum and the training of teachers and students in order to improve their competency in sustainability.
Ecological Environment Vulnerability and Driving Force of Yangtze River Urban Agglomeration
Authors: Peng Benhong , Huang Qianqian , Elahi Ehsan , Wei Guo
Published: November 2019

The vulnerability of ecological environment threatens social and economic development. Recent studies failed to reveal the driving mechanism behind it, and there is little analysis on the spatial clustering characteristics of the vulnerability of urban agglomerations. Therefore, this article estimates ecological environment vulnerability in 2005, 2011, and 2017, determines Moran Index (MI) with spatial autocorrelation model, analyzes the spatial-temporal difference characteristics of ecological environment vulnerability of Yangtze River Urban Agglomeration and the spatial aggregation effect, and discusses its driving factors. The study results estimate that the overall vulnerability index of the Yangtze River Urban Agglomeration is in a mild fragile state. However, most fragile and slightly fragile cities are developing in the direction of moderate to severe vulnerability. The spatial agglomeration effect of the ecological environment vulnerability of the Yangtze River Urban Agglomeration is not obvious, and the effect of mutual ecological environment influence among cities is not obvious. Moreover, the driving factors of ecological environment vulnerability of Yangtze River city group changed from natural factors to social economic factors and then to policy factors. It is necessary to develop an ecological economy, coordinate the spatial agglomeration of urban agglomerations, and make balance the internal differences of urban agglomerations.
Evaluating the Effect of the Ecological Restoration of Quarry Slopes in Caidian District, Wuhan City
Authors: Yang Yueshu , Liu Daxiang , Xiao Hai , Chen Jiangang , Ding Yu , Xia Dong , Xia Zhenyao , Xu Wennian
Published: November 2019

Many measures have been applied to quarry slopes for ecological restoration; however, the performance of these measures has not been clearly evaluated. Thus, research evaluating the effects of the ecological restoration of quarry slopes in Caidian District was carried out to quantify the performance of different ecological restoration methods, to evaluate the effect of ecological restoration projects and to learn the applicability of different restoration technologies in Caidian District. The research can provide a reference for scientific decision-making in the follow-up management of ecological environments in Caidian District. First, the ecological restoration process of quarries in Caidian District was described in detail by visiting the relevant design and construction units. Through observational analysis from the aspects of applicable slope gradient, slope flatness requirements, project cost, the vegetation coverage conditions, the species diversity conditions and construction difficulty, the advantages and disadvantages, as well as the applicability of different ecological restoration technologies were preliminarily clarified. Then, the comprehensive evaluation index system of the ecological restoration effects was established by using the fuzzy AHP method. The ecological restoration effects of each sample plot were evaluated quantitatively based on the data of the evaluation indexes obtained by the field investigation and sampling analysis. Finally, according to the evaluation results, the existing problems in the follow-up management of the ecological restoration of quarry slopes in Caidian District were analyzed, and corresponding countermeasures and suggestions were proposed. The results showed that the quantitative evaluation results obtained by the comprehensive evaluation system of ecological restoration were consistent with the observational analysis results, and the validity of the evaluation system was proven.
Pathways to Sustainable Intergenerational Programs: Lessons Learned from Portugal
Authors: Azevedo Cláudia , Sánchez Mariano
Published: November 2019

Despite the fundamental role given to the sustainability of intergenerational programming regarding their demonstrated impact on an aging society, only a few studies have undertaken an exploration of the qualitative core dimensions of sustainable intergenerational programs. This article addresses how the sustainability of educational intergenerational programs relates to why and how intergenerational program managers in the Portuguese area of Porto may have developed different attitudes and beliefs around adequate implementation of the programs. Drawing on qualitative interview data of a four-case fieldwork study conducted in Porto, Portugal, the study examines autonomy, empowerment, and intergenerational relationships as dimensions other than time duration behind program sustainability. Attention to the managers’ narratives on how intergenerational programs are implemented can help to explain why some dimensions are more highlighted than others. A qualitative analysis of intergenerational program sustainability, it is argued, offers considerable findings which provide opportunities to its implementation and intersection with managers’ beliefs. Findings suggest a need to de-emphasize both time duration and managers’ persona as the key for sustainability. We recommend intergenerational program sustainability as an area for future theorizing through providing a conceptualizing framework that might go beyond the normative focus on its duration and into the relational nature of these programs.
Sustainability and Subjective Well-Being: How Students Weigh Dimensions
Authors: Lengyel Attila , Kovács Sándor , Müller Anetta , Dávid Lóránt , Szőke Szilvia , Bácsné Bába Éva
Published: November 2019

Sustainability and Subjective Well-Being (SWB) are strongly interrelated domains. The way students view them and prioritize their dimensions should be factored into curricular developments in education for sustainability. Instruments developed to examine sustainability and SWB preferences typically use rating scale items to measure dimensions as separate entities. In contrast, the question format used in this study forces the students to rate variables in relation to each other. The sum of both SWB and sustainability variables was fixed, which means that increasing the weight of a priority automatically meant a decrease in the weight that could be allocated for the remaining elements. Two-block Partial Least Squares (PLS) modelling was used to examine how pre-defined SWB and sustainability dimensions behave when handled within the same model. It was found that those who ordered the three sustainability dimensions as Environment > Society > Economy tended to rank SWB dimensions as (Relations with others, Inner peace) > (Health, Close to nature) > (Good job, Leisure). Our research proved that the use of question formats resembling real-life resource allocation dilemmas and the treatment of SWB and sustainability as one system can yield invaluable information for the educational process.
The Impacts of Human Activities on Ecosystems within China’s Nature Reserves
Authors: Zhu Ping , Cao Wei , Huang Lin , Xiao Tong , Zhai Jun
Published: November 2019

Protected areas (PAs) provide refuges for threatened species and are considered to be the most important approach to biodiversity conservation. Besides climate change, increasing human population is the biggest threat to biodiversity and habitats in PAs. In this paper, the temporal and spatial variations of land cover changes (LCC), vegetation fraction (VFC), and net primary productivity (NPP) were studied to present the ecosystem dynamics of habitats in 6 different types of national nature reserves (NNRs) in 8 climate zones in China. Furthermore, we used Defense Meteorological Satellite Program/Operational Linescan System (DMSP/OLS) nighttime light datasets and the human disturbance (HD) index estimated from LCC to quantify the living and developing human pressures within the NNRs in the period 2000–2013. The results showed that (1) the living human activities of NNRs increased apparently in the humid warm-temperate zone, Qinghai-Tibet Plateau, mid-temperate semi-arid zone, and mid-temperate humid zone, with the highest increase of nighttime light observed in inland wetlands; (2) the developing human activities in NNRs indicated by the HD index were higher in the humid warm-temperate zone and mid-temperate semi-arid zone as a result of increasing areas of agricultural and built activities, and lower in the sub-tropics due to improved conservation of forest ecosystems; (3) the relationship between HD and VFC suggests that ecosystems in most NNRs of south-subtropics, mid-temperate arid zone and Qinghai-Tibet Plateau were predominantly impacted by climate change. However, HDs were the prevalent factor of ecosystem dynamics in most NNRs of north-subtropics, mid-temperate semi-arid and humid zones.
Identifying Ecosystem-Based Alternatives for the Design of a Seaport’s Marine Infrastructure: The Case of Tema Port Expansion in Ghana
Authors: de Boer Wiebe P. , Slinger Jill H. , wa Kangeri Arno K. , Vreugdenhil Heleen S.I. , Taneja Poonam , Appeaning Addo Kwasi , Vellinga Tiedo
Published: November 2019

Long-term sustainable port development requires accounting for the intrinsic values of ecosystems. However, in practice, ecosystem considerations often only enter the planning and design process of ports when required by an Environmental Impact Assessment. At this late stage, most of the design is already fixed and opportunities to minimize and restore ecosystem impacts are limited. In this paper, we adopt a large-scale, ecosystem perspective on port development with the aim to identify ecosystem-based design alternatives earlier and throughout the planning and design of a port’s marine infrastructure. We present a framework, termed the ‘ecosystem-based port design hierarchy’ (EPDH), to identify ecosystem-based alternatives at four hierarchical design levels: 1) alternatives to port developments, 2) port site selection, 3) port layout design, and 4) design of structures and materials. In applying the EPDH framework retrospectively to a case study of port expansion in Tema, Ghana, we establish that ecosystem considerations played only a limited role in identifying and evaluating alternatives at all four design levels in the case study, whereas more eco-friendly alternatives in terms of port layouts, structures, and materials are identified using the EPDH framework. This reveals that opportunities for ecosystem-friendly port designs may have been missed and demonstrates the need for and the potential added value of our framework. The framework can assist practitioners in earlier and wider identification of ecosystem-based alternatives for a port’s marine infrastructure in future seaport developments and, hence, represents an important step towards more sustainable port designs.
Addressing Geospatial Preparedness Inequity: A Sustainable Bottom-Up Approach for Non-Governmental Development Organizations
Authors: San Martin Roberto , Painho Marco , Cruz-Jesus Frederico
Published: November 2019

In less developed areas, the use of Geographic Information Systems (GIS) to coordinate disaster response is hindered by a lack of geospatial preparedness. Humanitarian missions often rely on OpenStreetMap as a source of information to overcome this limitation. In these places, Non-Governmental Organizations (NGOs) might already be using GIS to implement development projects before the disaster. This study considers the management of geospatial information by those NGOs and whether they could improve geospatial preparedness from within the communities. This bottom-up approach would allow the inclusion of information relevant to the community in the disaster response decision-making process. The research method was an online survey with a worldwide sample of more than 200 development NGOs. The results show that many NGOs use digital geographic information, mostly open-data. They could indeed improve geospatial preparedness while using open-data and community mapping for the implementation of their projects. There is, however, a limitation; most of the development NGOs using open geographic data are not familiar with the open platforms used by the humanitarian community (i.e., OpenStreetMap). Therefore, the study indicates that the sustainability of this synergic approach requires further harmonization between development and humanitarian organizations working for the wellbeing of the same communities.
On the Asymmetries of Sovereign Credit Rating Announcements and Financial Market Development in the European Region
Authors: Li Chunling , Pervaiz Khansa , Asif Khan Muhammad , Ur Rehman Faheem , Oláh Judit
Published: November 2019

In modeling the impact of sovereign credit rating (CR) on financial markets, a considerable amount of the literature to date has been devoted to examining the short-term impact of CR on financial markets via an event-study methodology. The argument has been established that financial markets are sensitive to CR announcements, and market reactions to such announcements (both upgrading and degrading) are not the same. Using the framework of an autoregressive distributed lag setting, the present study attempted to empirically test the linear and non-linear impacts of CR on financial market development (FMD) in the European region. Nonlinear specification is capable to capture asymmetries (upgrades and downgrades) in the estimation process, which have not been considered to date in financial market literature. Overall findings identified long-term asymmetries, while there was little evidence supporting the existence of short-term asymmetries. Thus, the present study has extended the financial market literature on the subject of the asymmetrical impact of a sovereign CR on European FMD and provides useful input for policy formation taking into account these nonlinearities. Policies solely based upon linear models may be misleading and detrimental.
Influence of Outdoor Living Environment on Elders’ Quality of Life in Old Residential Communities
Authors: Yu Shiwang , Liu Yong , Cui Caiyun , Xia Bo
Published: November 2019

The population is getting older in Mainland China, which presents a huge challenge of how to support these increasing elders to enjoy a high quality of life (QoL). Due to the limited nursing institutions and Chinese traditional culture, aging in place is the most common choice for elders. Up to now, most elders in cities are living in old residential communities (ORCs) rather than new ones. Poor quality of outdoor living environment (OLE) in these ORCs cannot well support the daily life of the elders, especially for those with physical problems. A questionnaire study was conducted to explore the influence of OLE on the QoL of elders living in ORCs. A total of 107 questionnaires were completed by both elderly residents in ORCs (45.79% were male and 54.21% were female). The data was analyzed by a mix of reliability analysis, correlation analysis, and regression analysis. The results showed that physical health of elders was influenced by distance, safety, greenery, seat, recreational facilities; psychological health was predicted by width, height, and greenery; social relationship was affected by distance, safety, and recreational facilities. Based on the research results, recommendations were proposed to property management service providers and local governments, including providing more seats at a reasonable height, setting handrails alongside the long ramp, installing folding seats along building stairs, and so on.
Acquisition of Electric Vehicles—A Step towards Green Consumption. Empirical Research among Romanian Students
Authors: Brătucu Gabriel , Trifan Adrian , Dovleac Lavinia , Chițu Ioana Bianca , Todor Raluca Dania , Brătucu Rareș
Published: November 2019

The paper analyzes particular aspects of a competitive economy based on low carbon emissions, which requires a fundamental change in consumer behavior, by focusing mainly on green acquisitions. The article contributes to the literature by the novelty of the researched problem: identification and analysis of the attitude and behavior of Romanian students regarding the electric vehicles acquisition. Thus, a quantitative marketing research was conducted, using a sample of 1221 students from 11 Romanian university centers. Also, the paper includes an overview regarding the costs and financial benefits provided by the Romanian Government to the electric vehicles owners, such as acquisition price reductions or tax reductions. The research results show that only half of the students are familiar with the concept of green consumption, and 37.8% of them are interested in buying an electric vehicle, the main reason being the fuel consumption. The authors recommend to the state’s institutions to develop special programs, by offering attractive facilities to the young people with higher education, as potential buyers, for the purchase of electric vehicles, this way diminishing the barrier effect generated by the high price. The academic environment should initiate research, both at the micro and macroeconomic level, to quantify the economic-social implications of green acquisitions in general and electric vehicles in particular.
Search for Measure of the Value of Baltic Sustainability Development: A Meta-Review
Authors: Staszkiewicz Piotr
Published: November 2019

The purpose of the study is to identify a sustainability development measure. The United Nations announced 17 development objectives in Agenda 2030. This research attempts to identify a measurement which captures all of the UN objectives. It uses the Baltic Sea Region as a natural laboratory for the sustainability discussion. This paper provides an analysis of a sample from the population of 159 research papers, published between 1990 and 2019. With the application of citation count regression, the population of papers is reduced to a sample of the heterogenic papers. These papers were then analysed for the existence of an integrated sustainability development measurement. The results indicate that there is no available applied or theoretical model for an integrated measurement of sustainable development across all of the United Nation’s goals. The study provides the framework for a further matrix in reference to gross domestic product. The results are robust in terms of different sample specifications. The identified research gap has a policy implication. There is a need to develop a universal and comprehensive sustainable value measure to support policymakers and their public choices.
Interrelation between Eco-Innovation and Intra-Industry Trade—A Proposal for a Proxy Indicator of Sustainability in the EU Countries
Authors: Gallucci Teodoro , Dimitrova Vesselina , Marinov Georgi
Published: November 2019

The “innovation–trade” interrelation has been a subject of research for decades. Nowadays, in the context of the growing importance of sustainable development, the role of eco-innovation is essential for promoting a rapid economic growth in each country. In this sense, eco-innovation influences the level of intra-industry trade stimulating international trade to adopt environmentally-friendly technologies. In general, the evaluation of eco-innovation in EU countries is done through indicators of their degree of performance and their impact on the welfare of nations. Using Eurostat data and WITS (World Integrated Trade Solution) database for the period 2010–2018, the authors of this paper give empirical evidence of a linkage between the two indicators. The Grubel–Lloyd index is selected as an appropriate tool to show that socio-economic performance has a significant weight in eco-innovation scoreboard measurement. The results confirm that intra-industry trade of each EU country is closely related to the level of its eco-innovation index. To our knowledge, this is the first attempt to test for such a type of interrelation and to show that by verifying the usefulness of eco-innovation performance in EU countries through an intra-industry trade indicator (IIT) such as the Grubel–Lloyd index.
Factors Contributing to the Relationship between Driving Mileage and Crash Frequency of Older Drivers
Authors: Lee Dongkwan , Guldmann Jean-Michel , Choi Choongik
Published: November 2019

As a characteristic of senior drivers aged 65 +, the low-mileage bias has been reported in previous studies. While it is thought to be a well-known phenomenon caused by aging, the characteristics of urban environments create more opportunities for crashes. This calls for investigating the low-mileage bias and scrutinizing whether it has the same impact on other age groups, such as young and middle-aged drivers. We use a crash database from the Ohio Department of Public Safety from 2006 to 2011 and adopt a macro approach using Negative Binomial models and Conditional Autoregressive (CAR) models to deal with a spatial autocorrelation issue. Aside from the low-mileage bias issue, we examine the association between the number of crashes and the built environment and socio-economic and demographic factors. We confirm that the number of crashes is associated with vehicle miles traveled, which suggests that more accumulated driving miles result in a lower likelihood of being involved in a crash. This implies that drivers in the low mileage group are involved in crashes more often, regardless of the driver’s age. The results also confirm that more complex urban environments have a higher number of crashes than rural environments.
Getting Involved with Vaccination. Swiss Student Teachers’ Reactions to a Public Vaccination Debate
Authors: Zeyer Albert
Published: November 2019

Vaccination is an explicit topic of the United Nations’ 2030 Agenda for Sustainable Development. The present article explores a new way of involving student teachers into the vaccination debate. To this aim, 273 students at a Swiss university for teacher education were invited to read a debate between a vaccination proponent and a vaccination opponent that had been published in a free local newspaper. Then, they were asked to judge five of the main arguments of each discussant and to take a (hypothetical) general decision in favor or against vaccination. This decision, the judgements, and students’ comments were investigated with a mixed method approach in order to better understand the students’ needs and to refine the new approach. It was found that the students eagerly took part in the intervention, but that they were very ambivalent concerning the arguments. They could be classified into three groups. Two groups, called the acceptors and the rejectors, supported the proponent and the opponent, respectively, and decided accordingly in favor or against vaccination. However, there remained a considerably large group that was called the hesitators. They were particularly ambivalent towards both types of argumentation, but, as structural equation modelling revealed, they eventually were more influenced by the arguments in favor than by those against vaccination. In their comments, these students wanted to know more about the prevented diseases, and they often referred to their personal experience but not to the experts’ arguments. It was concluded that this group would benefit most from the new type of intervention. A shared-decision approach, as is today prominently discussed in medicine, could improve its impact, and ways should be found to more seriously and consistently include empathetic understanding in pedagogical settings—for example, by adapting the three-step model from medicine or the reflective equilibrium approach from applied ethics.
Terrestrial Water Storage in China: Spatiotemporal Pattern and Driving Factors
Authors: Huang Qingzhong , Zhang Qiang , Xu Chong-Yu , Li Qin , Sun Peng
Published: November 2019

China is the largest agricultural country with the largest population and booming socio-economy, and hence, remarkably increasing water demand. In this sense, it is practically critical to obtain knowledge about spatiotemporal variations of the territorial water storage (TWS) and relevant driving factors. In this study, we attempted to investigate TWS changes in both space and time using the monthly GRACE (Gravity Recovery and Climate Experiment) data during 2003–2015. Impacts of four climate indices on TWS were explored, and these four climate indices are, respectively, El Niño Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), North Atlantic Oscillation (NAO), and Pacific decadal oscillation (PDO). In addition, we also considered the impacts of precipitation changes on TWS. We found significant correlations between climatic variations and TWS changes across China. Meanwhile, the impacts of climate indices on TWS changes were shifting from one region to another across China with different time lags ranging from 0 to 12 months. ENSO, IOD and PDO exerted significant impacts on TWS over 80% of the regions across China, while NAO affected TWS changes over around 40% of the regions across China. Moreover, we also detected significant relations between TWS and precipitation changes within 9 out of the 10 largest river basins across China. These results highlight the management of TWS across China in a changing environment and also provide a theoretical ground for TWS management in other regions of the globe.
Effect of Diffusion Conditions on Absorption Performance of Materials Evaluated in Reverberation Chamber
Authors: Kim Kyung Ho , Jeon Jin Yong
Published: November 2019

Obtaining the reverberation time of a multipurpose building is most effective when accurate data is used to simulate the building. Therefore, this study proposes a method of measuring the sound absorption coefficient that is close to the sound absorption performance of the conditions in which building materials are actually used. In addition, a sufficient diffusivity evaluation method for sound absorption coefficient measurement in a reverberation chamber is proposed, to address the sound absorption performance difference caused by internal diffusion of the reverberation chamber. When the sound absorption performance was evaluated after installing the specimen under the condition of minimized edge effect, the result obtained should closely match the sound absorption performance of the specimen surface. The sound absorption performance of the specimen ( α β E ≈ 0 ) with minimized edge effect and the sound absorption performance on the specimen surface ( α ∞ ) were proposed as an evaluation indicator of agreement between the values. Experimental results show that diffusion inside the reverberation chamber is enhanced when α ∞ − α β E ≈ 0 < 0.02, for which sufficient diffusion can be assumed inside the reverberation chamber. In addition, to verify the validity of the proposed evaluation indicator, we investigated the relationship with the objective diffusion evaluation indicator for diffuse field configuration in the reverberation chamber, such as relative standard deviation of decay rate ( S r e l ) and Np values. The results of this study are expected to contribute to a more accurate estimation of the sufficient diffusion condition in the reverberation chamber, in evaluating the sound absorption performance of the material, and that inside the reverberation chamber.
Evaluating the Effectiveness of Climate Change Adaptations in the World’s Largest Mangrove Ecosystem
Authors: Singh Pramod K. , Papageorgiou Konstantinos , Chudasama Harpalsinh , Papageorgiou Elpiniki I.
Published: November 2019

The Sundarbans is the world’s largest coastal river delta and the largest uninterrupted mangrove ecosystem. A complex socio-ecological setting, coupled with disproportionately high climate-change exposure and severe ecological and social vulnerabilities, has turned it into a climate hotspot requiring well-designed adaptation interventions. We have used the fuzzy cognitive maps (FCM)-based approach to elicit and integrate stakeholders’ perceptions regarding current climate forcing, consequent impacts, and efficacy of the existing adaptation measures. We have also undertaken climate modelling to ascertain long-term future trends of climate forcing. FCM-based simulations reveal that while existing adaptation practices provide resilience to an extent, they are grossly inadequate in the context of providing future resilience. Even well-planned adaptations may not be entirely transformative in such a fragile ecosystem. It was through FCM-based simulations that we realised that a coastal river delta in a developing nation merits special attention for climate-resilient adaptation planning and execution. Measures that are likely to enhance adaptive capabilities of the local communities include those involving gender-responsive and adaptive governance, human resource capacity building, commitments of global communities for adaptation financing, education and awareness programmes, and embedding indigenous and local knowledge into decision making.
Environmental Implications of the National Power Roadmap with Policy Directives for Battery Electric Vehicles (BEVs)
Authors: Kim Solhee , Pelton Rylie E. O. , Smith Timothy M. , Lee Jimin , Jeon Jeongbae , Suh Kyo
Published: November 2019

The environmental impact of battery electric vehicles (BEVs) largely depends on the environmental profile of the national electric power grid that enables their operation. The purpose of this study is to analyze the environmental performance of BEV usage in Korea considering the changes and trajectory of the national power roadmap. We examined the environmental performance using a weighted environmental index, considering eight impact categories. The results showed that the weighted environmental impact of Korea’s national power grid supply would increase overall by 66% from 2015 to 2029 using the plan laid out by the 7th Power Roadmap, and by only 33% from 2017 to 2031 using the 8th Power Roadmap plan. This change reflects the substantial amount of renewables in the more recent power mix plan. In 2016, BEV usage in Korea resulted in emissions reductions of about 37% compared with diesel passenger vehicles, and 41% compared with gasoline vehicles per kilometer driven (100 g CO2e/km versus 158 g and 170 g CO2e/km, respectively) related to transportation sector. By 2030, BEV usage in Korea is expected to achieve a greater emissions reduction of about 53% compared with diesel vehicles and 56% compared with gasoline vehicles. However, trade-offs are also expected because of increased particulate matter (PM) pollution, which we anticipate to increase by 84% compared with 2016 conditions. Despite these projected increases in PM emissions, increased BEV usage in Korea is expected to result in important global and local benefits through reductions of climate-changing greenhouse gas (GHG) emissions.
Different Time Windows Provide Divergent Estimates of Climate Variability and Change Impacts on Maize Yield in Northeast China
Authors: Deng Xi , Huang Yao , Sun Wenjuan , Yu Lingfei , Hu Xunyu , Wang Sheng
Published: November 2019

Maize is the main crop in Northeast China (NEC), but is susceptible to climate variations. Using county-level data from 1980 to 2010, we established multiple linear regression models between detrended changes in maize yield and climate variables at two time windows—whole-season and vegetative and reproductive (V&R) phases. Based on climate change trends, these regression models were used to assess climate variability and change impacts on maize yield in different regions of NEC. The results show that different time windows provide divergent estimates. Climate change over the 31 years induced a 1.3% reduction in maize yield at the time window of whole-season, but an increase of 9.1% was estimated at the time window of V&R phases. The yield improvement is attributed to an increase in minimum temperature at the vegetative phase when the temperatures were much lower than the optimum. Yield fluctuations due to inter-annual climate variability were estimated to be ±9% per year at the time window of V&R phases, suggesting that the impact of climate variability on maize yield is much greater than climate change. Trends in precipitation were not responsible for the yield change, but precipitation anomalies contributed to the yield fluctuations. The impacts of warming on maize yield are regional specific, depending on the local temperatures relative to the optimum. Increase in maximum temperature led to a reduction of maize yield in western NEC, but to an increase in mid-east part of NEC. Our findings highlight the necessity of taking into account the phenological phase when assessing the climate impacts on crop yield, and the importance of buffering future crop production from climate change in NEC.
Industry 4.0 to Accelerate the Circular Economy: A Case Study of Electric Scooter Sharing
Authors: Pham Trang Thi , Kuo Tsai-Chi , Tseng Ming-Lang , Tan Raymond R. , Tan Kimhua , Ika Denny Satria , Lin Chiuhsiang Joe
Published: November 2019

To achieve sustainability, the circular economy (CE) concept is challenging traditional linear enterprise models due to the need to manage geographically distributed product life cycle and value chains. Concurrently, Industry 4.0 is being used to bring productivity to higher levels by reducing waste and improving the efficiency of production processes via more precise real-time planning. There is significant potential to combine these two frameworks to enhance the sustainability of manufacturing sectors. This paper discusses the fundamental concepts of Industry 4.0 and explores the influential factors of Industry 4.0 that accelerate the sharing economy in the CE context via a case of electric scooters in Taiwan. The result shows Industry 4.0 can provide an enabling framework for the sharing economy in CE implementation.
Managing Size of Public Schools and School Boards: A Multi-Level Cost Approach Applied to Dutch Primary Education
Authors: Blank Jos L. T. , Niaounakis Thomas K.
Published: November 2019

In many countries, the provision of primary education is among the core responsibilities of local governments. One of the main questions local governments face concerns the optimal configuration of school boards and size of schools. In this paper we analyse the relation between cost and scale in school boards and in schools. The influence of both the governing layer (board) and the operational layer (school) on average cost are jointly modelled. Board cost is modelled as an aggregation of individual school cost functions so that individual school cost data are not required in order to estimate the model. The results indicate that small schools (<60) pupils are operating under sizable economies of scale. The optimum school size is estimated at roughly 450 pupils, but average cost remains roughly constant with regard to size. In contrast to school size, the effect of board size (in terms of the number of schools governed) on average cost is limited. The policy recommendation is that municipalities should create at least three schoolboards within their jurisdiction and take measures in case individual school size declines below 60 pupils.
Pioneers’ Insights into Governing Social Innovation for Sustainable Anti-Consumption
Authors: Ziesemer Florence , Hüttel Alexandra , Balderjahn Ingo
Published: November 2019

Transcending the conventional debate around efficiency in sustainable consumption, anti-consumption patterns leading to decreased levels of material consumption have been gaining importance. Change agents are crucial for the promotion of such patterns, so there may be lessons for governance interventions that can be learnt from the every-day experiences of those who actively implement and promote sustainability in the field of anti-consumption. Eighteen social innovation pioneers, who engage in and diffuse practices of voluntary simplicity and collaborative consumption as sustainable options of anti-consumption share their knowledge and personal insights in expert interviews for this research. Our qualitative content analysis reveals drivers, barriers, and governance strategies to strengthen anti-consumption patterns, which are negotiated between the market, the state, and civil society. Recommendations derived from the interviews concern entrepreneurship, municipal infrastructures in support of local grassroots projects, regulative policy measures, more positive communication to strengthen the visibility of initiatives and emphasize individual benefits, establishing a sense of community, anti-consumer activism, and education. We argue for complementary action between top-down strategies, bottom-up initiatives, corporate activities, and consumer behavior. The results are valuable to researchers, activists, marketers, and policymakers who seek to enhance their understanding of materially reduced consumption patterns based on the real-life experiences of active pioneers in the field.
Indoor Thermal Comfort of Pregnant Women in Hospital: A Case Study Evidence
Authors: Fabbri Kristian , Gaspari Jacopo , Vandi Laura
Published: November 2019

Despite studies on thermal comfort being consolidated in the scientific literature, people’s well-being in some specific conditions and places, such as hospitals, requires to be further explored. The paper describes the methodological approach adopted to evaluate thermal comfort level and perception of pregnant women hosted in the obstetric ward of a test-bed case (Sant’Orsola hospital in Bologna, Italy). The methodology adopts a mixed approach that compares the results of on-site monitoring by probe (as quantitative data) with the ones of a survey (questionnaire form) delivered to the involved subjects (as qualitative data) to understand if metabolic alteration may influence the pregnant women’s perception of comfort conditions. The first follows ISO 7730, the second, ISO 10551. The comparison between the instrumental collected data and the outcomes of the survey revealed a wide gap between TSV (Thermal Sensation Vote) and PMVm (Predicted Mean Vote, measured on-site). The reason can be identified in the use of a standardized metabolic unit from ISO that does not correctly reflect the physiologic condition of pregnant women. Following a trial and error methodology, a met value for pregnant women is accordingly proposed. Moreover, an adaptive thermal comfort approach is adopted. This research is a first step towards the definition of specific thermal comfort in a hospital ward hosting pregnant women and more generally offers a reflection about the need to define specific met in the standards for some particular categories (children, elderly, pregnant women, etc.) when investigating thermal comfort.
Hyperhomographies on Krasner Hyperfields
Authors: Vahedi Vahid , Jafarpour Morteza , Cristea Irina
Published: November 2019

In this paper, we introduce generalized homographic transformations as hyperhomographies over Krasner hyperfields.These particular algebraic hyperstructues are quotient structures of classical fields modulo normal groups. Besides, we define some hyperoperations and investigate the properties of the derived hypergroups and H v -groups associated with the considered hyperhomographies. They are equipped hyperhomographies obtained as quotient sets of nondegenerate hyperhomographies modulo a special equivalence. Thus the symmetrical property of the equivalence relations plays a fundamental role in this constructions.
Signed Domination Number of the Directed Cylinder
Authors: Wang Haichao , Kim Hye Kyung
Published: November 2019

In a digraph D = ( V ( D ) , A ( D ) ) , a two-valued function f : V ( D ) → { − 1 , 1 } defined on the vertices of D is called a signed dominating function if f ( N − [ v ] ) ≥ 1 for every v in D. The weight of a signed dominating function is f ( V ( D ) ) = ∑ v ∈ V ( D ) f ( v ) . The signed domination number γ s ( D ) is the minimum weight among all signed dominating functions of D. Let P m × C n be the Cartesian product of directed path P m and directed cycle C n . In this paper, the exact value of γ s ( P m × C n ) is determined for any positive integers m and n.
Evidence Falsifying the Double Helix Model
Authors: Xu You Cheng
Published: November 2019

Through more than 40 years of reading, thinking, searching, and experimentation, we have found that the double helix model carries some defects or incorrect information. Evidence gleaned from the literature clearly indicates that the two strands of DNA are coiled ambidextrously, rather than plectonemically. It is likely that the linking number of native chromosomal Escherichia coli (E. coli) DNA is less than 960. Presently, a clear voice is necessary to break the ice formed from decades of misleading media, questionable textbooks, and expediency. For the sake of science, we are responsible and willing to share our hard-earned knowledge, experience, and knack with the public. A promising research plan is provided for the additional falsification of the right-handed double helix model. It would be a precision hit at the Achilles’ heel of the double helix model. An appropriate conceptual shift will hopefully lead to new knowledge on the secondary structure of DNA and improve understanding of its biological functions.
Evaluation of Speech Quality Through Recognition and Classification of Phonemes
Authors: Pekarskikh Svetlana , Kostyuchenko Evgeny , Balatskaya Lidiya
Published: November 2019

This paper discusses an approach for assessing the quality of speech while undergoing speech rehabilitation. One of the main reasons for speech quality decrease during the surgical treatment of vocal tract diseases is the loss of the vocal tractˈs parts and the disruption of its symmetry. In particular, one of the most common oncological diseases of the oral cavity is cancer of the tongue. During surgical treatment, a glossectomy is performed, which leads to the need for speech rehabilitation to eliminate the occurring speech defects, leading to a decrease in speech intelligibility. In this paper, we present an automated approach for conducting the speech quality evaluation. The approach relies on a convolutional neural network (CNN). The main idea of the approach is to train an individual neural network for a patient before having an operation to recognize typical sounding of phonemes for their speech. The neural network will thereby be able to evaluate the similarity between the patientˈs speech before and after the surgery. The recognition based on the full phoneme set and the recognition by groups of phonemes were considered. The correspondence of assessments obtained through the autorecognition approach with those from the human-based approach is shown. The automated approach is principally applicable to defining boundaries between phonemes. The paper shows that iterative training of the neural network and continuous updating of the training dataset gradually improve the ability of the CNN to define boundaries between different phonemes.