bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation on the Model-Based Control Performance in Vehicle Safety Critical Scenarios with Varying Tyre Limits
Authors: Sakhnevych Aleksandr , Arricale Vincenzo Maria , Bruschetta Mattia , Censi Andrea , Mion Enrico , Picotti Enrico , Frazzoli Emilio
Published: August 2021

In recent years the increasing needs of reducing the costs of car development expressed by the automotive market have determined a rapid development of virtual driver prototyping tools that aims at reproducing vehicle behaviors. Nevertheless, these advanced tools are still not designed to exploit the entire vehicle dynamics potential, preferring to assure the minimum requirements in the worst possible operating conditions instead. Furthermore, their calibration is typically performed in a pre-defined strict range of operating conditions, established by specific regulations or OEM routines. For this reason, their performance can considerably decrease in particularly crucial safetycritical situations, where the environmental conditions (rain, snow, ice), the road singularities (oil stains, puddles, holes), and the tyre thermal and ageing phenomena can deeply affect the adherence potential. The objective of the work is to investigate the possibility of the physical model-based control to take into account the variations in terms of the dynamic behavior of the systems and of the boundary conditions. Different scenarios with specific tyre thermal and wear conditions have been tested on diverse road surfaces validating the designed model predictive control algorithm in a hardware-in-the-loop real-time environment and demonstrating the augmented reliability of an advanced virtual driver aware of available information concerning the tyre dynamic limits. The multidisciplinary proposal will provide a paradigm shift in the development of strategies and a solid breakthrough towards enhanced development of the driving automatization systems, unleashing the potential of physical modeling to the next level of vehicle control, able to exploit and to take into account the multi-physical tyre variations.
UAV Swarm Navigation Using Dynamic Adaptive Kalman Filter and Network Navigation
Authors: Zhang Jingjuan , Zhou Wenxiang , Wang Xueyun
Published: August 2021

Aiming to improve the positioning accuracy of an unmanned aerial vehicle (UAV) swarm under different scenarios, a two-case navigation scheme is proposed and simulated. First, when the Global Navigation Satellite System (GNSS) is available, the inertial navigation system (INS)/GNSS-integrated system based on the Kalman Filter (KF) plays a key role for each UAV in accurate navigation. Considering that Kalman filter’s process noise covariance matrix Q and observation noise covariance matrix R affect the navigation accuracy, this paper proposes a dynamic adaptive Kalman filter (DAKF) which introduces ensemble empirical mode decomposition (EEMD) to determine R and adjust Q adaptively, avoiding the degradation and divergence caused by an unknown or inaccurate noise model. Second, a network navigation algorithm (NNA) is employed when GNSS outages happen and the INS/GNSS-integrated system is not available. Distance information among all UAVs in the swarm is adopted to compensate the INS position errors. Finally, simulations are conducted to validate the effectiveness of the proposed method, results showing that DAKF improves the positioning accuracy of a single UAV by 30–50%, and NNA increases the positioning accuracy of a swarm by 93%.
Toward a High Spatial Resolution Aerial Monitoring Network for Nature Conservation—How Can Remote Sensing Help Protect Natural Areas?
Authors: Bakó Gábor , Molnár Zsolt , Bakk Lilla , Horváth Ferenc , Fehér Luca , Ábrám Örs , Morvai Edina , Biro Csaba , Pápay Gergely , Fűrész Attila , Penksza Károly , Pácsonyi Diána , Demény Krisztina , Juhász Erika , Dékány Dorottya , Csernyava Lili , Illés Gábor , Molnár András
Published: August 2021

Aerial surveys have always significantly contributed to the accurate mapping of certain geographical phenomena. Remote sensing opened up new perspectives in nature monitoring with state-of-the-art technical solutions using modern onboard recording equipment. We developed the technical background and the methodology that supports detailed and cost-effective monitoring of a network of natural areas, thereby detecting temporal changes in the spatial pattern of land cover, species, biodiversity, and other natural features. In this article, we share our experiences of the technical background, geometric accuracy and results of comparisons with selected Copernicus Land Monitoring products and an Ecosystem Map based on the testing of our methodology at 25 sites in Hungary. We combined a high-spatial-resolution aerial remote sensing service with field studies to support an efficient nature conservation monitoring network at 25 permanent sites. By analyzing annually (or more frequently) orthophotos taken with a range of 0.5–5 cm spatial resolution and 3D surface models of aerial surveys, it is possible to map the upper canopy of vegetation species. Furthermore, it allows us to accurately follow the changes in the dynamics at the forest edge and upper canopy, or the changes in species’ dominance in meadows. Additionally, spatial data obtained from aerial surveys and field studies can expand the knowledge base of the High-Resolution Aerial Monitoring Network (HRAMN) and support conservation and restoration management. A well-conducted high-resolution survey can reveal the impacts of land interventions and habitat regeneration. By building the HRAMN network, nature conservation could have an up-to-date database that could prompt legal processes, establish protection designation procedures and make environmental habitat management more cost-effective. Landscape protection could also utilize the services of HRAMN in planning and risk reduction interventions through more reliable inputs to environmental models.
Taking Eco-Innovation to the Road—A Design-Based Workshop Concept for the Development of Eco-Innovative Business Models
Authors: Bierwisch Antje , Huter Lucas , Pattermann Juliana , Som Oliver
Published: August 2021

At least since the European Union’s Eco-Innovation Action Plan, eco-innovation has received increased attention from scholars, practitioners, and policy-makers alike. Eco-innovation offers many opportunities for businesses in terms of cost reduction, competitive advantage, and sustainability. However, eco-innovative business models differ from conventional business models and have special requirements in terms of stakeholder involvement, value definition, and value creation. Facing technological progress, many businesses need guidance on how to translate the potentials arising from technological innovation into eco-innovative business models. Applying a design-based research approach, this study develops a design-based workshop concept to facilitate the development of eco-innovative business models on a firm level. The workshop concept was iteratively tested in a series of 22 workshops within the European Alpine bioeconomy sector. It transfers the specific requirements and substantive design principles of eco-innovative business models into an operative workshop concept. By building on stakeholder- and value-centred perspectives and ensuring a holistic understanding of sustainability and innovation, the paper derives a number of procedural design principles that could build the basis for further tools and methods of eco-innovative business model development.
Tourism and Counterurbanization in a Low-Amenity Peripheral Island: A Longitudinal Study at Yakushima Island in Kagoshima, Japan
Authors: Usui Rie , Funck Carolin , Adewumi Ifeoluwa B.
Published: August 2021

This research explored the long-term relation between tourism development and counterurbanization in a remote island in Japan, as the longevity of in-migrants’ role in low-amenity tourism destinations has been questioned. Using data collected over 10 years at Yakushima Island, the study investigated the island’s population trend, in-migrants’ motivation for relocation, their contributions to tourism, and the lives on the island. The results showed that the trend of population growth differed among Yakushima’s 24 villages likely because of accessibility, proximity to tourism attractions, the weather, and housing availability. Yakushima’s natural environment was the key factor in in-migrants’ migration choice. Encounters and connections with people on the island were found to be another important factor. In-migrants introduced ecotours as an innovation in the 1990s, and thereafter, many in-migrants moved to Yakushima with high aspirations of becoming tour guides. Tourism stagnated starting in 2008, and some in-migrants began moving out of the island. Despite the overall downward trend of tourism, an increase in international tourists created a niche market before the COVID-19 pandemic, attracting foreign in-migrants as tourism entrepreneurs in recent years. Similar to the main driver for Japanese in-migrants’ relocation, nature was also the main motivation for international tourists’ relocation.
Analysis of the Possibility of Fulfilling the Paris Agreement by the Visegrad Group Countries
Authors: Tucki Karol , Krzywonos Małgorzata , Orynycz Olga , Kupczyk Adam , Bączyk Anna , Wielewska Izabela
Published: August 2021

The aim of this study was to analyse the feasibility of implementing the Paris Agreement and the provisions regarding the goals of reducing greenhouse gas emissions in the EU through Poland, the Czech Republic, Hungary and Slovakia, i.e., the so-called Visegrad Group States (V4). The basis of the study was an in-depth analysis of the energy policies of the V4 countries, an analysis of energy generation structures, its consumption over the years, and an analysis of measures taken to improve energy efficiency. The analysis was performed as a function of the adopted targets for reducing CO2 emissions by 2020, with a prospect for 2030 and 2050. In all the analysed countries, the energy and heat production sectors were responsible for the highest carbon dioxide emissions. Among the analyzed countries, only Poland failed to meet its commitments regarding the level of greenhouse gas (GHG) reductions adopted by 2020. The achievement of further goals in this area, despite the planned investments and undertaken actions, is also at risk
Understanding the Difference of Teachers’ TLPACK before and during the COVID-19 Pandemic: Evidence from Two Groups of Teachers
Authors: Chen Yen-Jung , Hsu Robert Li-Wei
Published: August 2021

The COVID-19 outbreak has suddenly changed the landscape of education worldwide. Many governments have moved education completely online, with the idea that although schools are shut, classes can continue; however, the question regarding whether teachers are prepared for this massive shift in educational practice remains unanswered. This study addresses this issue through the lens of teachers’ technology, learners, pedagogy, academic discipline content, and content knowledge (TLPACK). Two groups of 250 teachers (n = 500) who teach various levels of students participated in a two-phase survey. The phases of the survey took place in 2017 and 2020 (i.e., before and during the COVID-19 pandemic). Participants answered 38 reliable and valid questions about TLPACK to address three research questions, and the collected data were subjected to frequentist and Bayesian statistical analysis. The analysis indicated that teachers’ TLPACKs were significantly different before and during the COVID-19 pandemic. This study revealed significant correlations among teachers’ TLPACK constructs and found that, among these constructs, the strongest relationship was that between learner knowledge (i.e., knowledge about the learners) and pedagogy knowledge. The study ends by reflecting on our findings’ implications, especially since the COVID-19 pandemic continues to have significant altering effects on both education and society at large.
Perusing the Past to Propel the Future: A Systematic Review of STEM Learning Activity Based on Activity Theory
Authors: Gyasi Juliana Fosua , Zheng Lanqin , Zhou Yidan
Published: August 2021

Education is the road to sustainability, creating the appropriate environment for learners to socialize and acquire knowledge and skills for the 21st century. This study reviews 53 studies on Science, Technology, Engineering, and Mathematics (STEM) learning activities from 2011 to 2020. In the past last 10 years, STEM education has gained attention, and little is known about how researchers designed and implemented learning activities. This systematic review based on activity theory reveals that STEM learning activities mostly involved elementary students in all STEM disciplines, with a sample size from 1 to 50. STEM learning activities emphasize mixed tasks, evaluating mixed learning outcomes with three STEM disciplines. Researchers mostly preferred project-based learning and problem-based learning methods, lasting from 9 to 24 weeks under teacher guidance with no rewards. This study revealed that most STEM activities were implemented in the classroom. Finally, the most often-used tools were mixed hardware. The quiz is the most often utilized in STEM activity. Major understudied areas that can be investigated by future studies are also revealed in depth. The results and implications for future studies are also discussed in detail.
Demand Stratification and Prediction of Evacuees after Earthquakes
Authors: Geng Shaoqing , Hou Hanping
Published: August 2021

In recent years, frequent natural disasters have brought huge losses to human lives and property, directly affecting social stability and economic development. Since the driving factor of disaster management operations is speed, it will face severe challenges and tremendous pressure when matching the supply of emergency resources with the demand. However, it is difficult to figure out the demands of the affected area until the initial post-disaster assessment is completed and demand is constantly changing. The focus of this paper is to stratify the evacuation needs and predict the number of evacuees and supplies demanded after an earthquake. This research takes a large-scale earthquake as an example to analyze the characteristics of evacuation demand stratification and the factors that affect the demands of evacuees. The forecast model for the number of evacuees is selected and improved. Moreover, combining the influencing factors of materials demand and the number of evacuees, a forecast model of materials demand for evacuees is constructed. The proposed model is used in the case of the Ya’an earthquake in China to estimate the number of evacuees and the daily need for emergency supplies.
Embedding Sustainability in the Economics Degree of the Faculty of Economics and Business of the University of Murcia: A Methodological Approach
Authors: Molera Lourdes , Sánchez-Alcázar Eugenio José , Faura-Martínez Úrsula , Lafuente-Lechuga Matilde , Llinares-Ciscar Juan Vicente , Marín-Rives Joaquín Longinos , Martín-Castejón Pedro Juan , Puigcerver-Peñalver María Carmen , Sánchez-Antón María C.
Published: August 2021

Education has been traditionally considered as a means to promote and disseminate sustainable development through the reorientation of the curriculum towards sustainability at all levels of the educational system. Higher Education Institutions take a leading role in this process. However, they face several limitations, including their lack of training in the topic, which is complex and difficult to fit into disciplines to begin with. This paper presents the experience of the Working Group on Curricular Sustainability of the Faculty of Economics and Business of the University of Murcia (Spain), carried out within the framework of a pilot project of teaching innovation whose objective was the incorporation of sustainability in the Degree in Economics. In doing so, a Sustainability Competency Map was drawn up and open educational resources that enable students to acquire these competencies were developed.
Financial Literacy and Alcohol Drinking Behavior: Evidence from Japan
Authors: Putthinun Pongpat , Watanapongvanich Somtip , Khan Mostafa Saidur Rahim , Kadoya Yoshihiko
Published: August 2021

Alcohol consumption is an important public health issue in Japan due to its association with numerous side effects. Recent studies find that financial literacy helps people abstain from risky health behaviors such as smoking, lack of exercise, and gambling. This study investigates how financial literacy, as a rational decision-making instrument, is associated with alcohol consumption behavior in Japan. Using data from the Preference Parameter Study (PPS) of Osaka University, we categorize respondents into daily drinkers and non-daily drinkers. We find that financial literacy is not significantly associated with alcohol consumption among Japanese people. We argue that the prevailing social belief that alcohol consumption is not entirely negative from the health perspective and can be beneficial for socialization to some extent overrides people’s rationality and plays a significant role in alcohol consumption decisions. However, our study provides evidence that respondents who are males, middle-aged, have children, have higher household income, have smoking habits, and place more importance on the future are more likely to be daily drinkers. We argue that the availability and easy access to alcohol drinking opportunities likely make people irrational and tempts them to drink frequently. Thus, authorities might consider revising current policies regarding alcohol availability and accessibility to limit alcohol consumption.
Willingness and Influencing Factors of Pig Farmers to Adopt Internet of Things Technology in Food Traceability
Authors: Sun Ruiyu , Zhang Siyao , Wang Tianyu , Hu Jiarui , Ruan Junhu , Ruan Junyong
Published: August 2021

The Internet of Things technology (IoT) in food traceability provides new ideas to solve the problem of smart production and offers new ideas for the formation of safe and high-quality markets for meat products. However, scholars have studied the combination of blockchain and IoT technology. There is a lack of research on the combination of IoT and food traceability technology. Moreover, previous studies focused on the application of IoT traceability technology, taking farmers’ adoption willingness as an exogenous variable while ignoring its endogeneity. Therefore, it is essential to study farmers’ willingness to adopt IoT traceability technology and find the factors that influence farmers’ adoption intention. Based on survey data from 264 pig farmers in Shaanxi Province, this paper discussed the factors which influence pig farmers’ adoption of the technology by using the Unified Theory of Acceptance and Use of Technology (UTAUT). The results showed that farmers’ adoption intention was influenced by a combination of farmers’ performance expectancy, effort expectancy, social influence, personal innovation, and perceived risk. Personal innovation played a mediating role in effort expectancy and adoption willingness and perceived risk played a moderating role in personal innovation and adoption willingness.
Comparison of Four Methods for Vertical Extrapolation of Soil Moisture Contents from Surface to Deep Layers in an Alpine Area
Authors: Li Jinlin , Zhang Lanhui
Published: August 2021

The accurate estimation of moisture content in deep soil layers is usually difficult due to the associated costs, strong spatiotemporal variability, and nonlinear relationship between surface and deep moisture content, especially in alpine areas (where complications include extreme heterogeneity and freeze-thaw processes). In an effort to identify the optimal method for this purpose, this study used measurements of soil moisture content at three depths (4, 10, and 20 cm) in the upper parts of the Babao River basin in the Qilian Mountains, Northwest China. These measurements were collected in the HiWATER (Heihe watershed allied telemetry experimental research) program to test four vertical extrapolation methods: exponential filtering (ExpF), linear regression (LR), support vector regression (SVR), and the application of a type of artificial neural network, the radial basis function (RBF). SVR provided the best predictions, in terms of the lowest root mean squared error and mean absolute error values, for the 10 and 20 cm layers from surface layer (4 cm) measurements. However, the data also confirmed that freeze-thawing is an important process in the study area, which makes the infiltration process more complex and highly variable over time. Thus, we compared the vertical extrapolation methods’ performance in each of the four periods with differing infiltration characteristics and found significant among-period differences in each case. However, SVR consistently provided the best estimates, and all methods provided better estimates for the 10 cm layer than for the 20 cm layer.
Case Study of an Automated Mower to Support Airport Sustainability
Authors: Hubbard Sarah , Baxmeyer Adam , Hubbard Bryan
Published: August 2021

This paper documents a case study of an automated mower to support sustainability at an airport. Mowing is an essential component of an airport’s Wildlife Hazard Management Plan (WHMP), which reduces the risk of birds and other wildlife to aircraft operations. Many airports have large areas of land (hundreds or even thousands of acres), which requires significant resources to manage and mow; experience at the Purdue Airport (KLAF) suggests that automated mowing may support economic and environmental aspects of sustainability. Automated mowing supports economic efficiency by reducing personnel requirements, although personnel are still needed for inspections, maintenance, and “mower rescue” if there is a malfunction (technical or field issue). Automated mowing supports environmental impacts by reducing local emissions since the mower is powered by electricity rather than gasoline; this benefit would be increased with the use of solar-powered mowers. Automated mowing may not be viable everywhere, and factors such as terrain, access to available power, acreage, and location on the airfield (including proximity to protected areas) must be carefully considered. Although automated mowing will not completely replace traditional mowing in the near future, autonomous mowers in remote areas may be an appropriate practice to support airport sustainability.
A Research Methodology for Mitigating Climate Change in the Restoration of Buildings: Rehabilitation Strategies and Low-Impact Prefabrication in the “El Rodezno” Water Mill
Authors: Ramos-Carranza Amadeo , Añón-Abajas Rosa María , Rivero-Lamela Gloria
Published: August 2021

New environmental challenges, coupled with the fact that 80% of the residential buildings that will exist in Europe in the year 2050 have already been built, mean that rehabilitation and restoration must be prioritised over new buildings. Construction is one of the largest generators of CO2. Using prefabricated and industrialised products and systems can help to mitigate its harmful effects thanks to the greater control and environmental evaluation that can be carried out on these products from their manufacture until the end of their useful life (LCA). In the county of the Sierra de Cádiz (Andalusia, Spain), there are 85 water mills, many of which are derelict and in disuse, which, due to their location, size, and characteristics, are ideal for rehabilitation and restoration for residential use. Taking the “El Rodezno” mill as a case study, this paper proposes rehabilitation strategies using prefabricated industrialised elements that have a low environmental impact. The methodological discussion takes as its starting point the process of design and testing that Alvar Aalto applied in 1940 and from subsequent studies that have confirmed a research structure based on the project design and the built project with the appropriate field of study and confirmation of the applicable strategies and solutions. To this end, this article is written on the basis of the two main phases of Alvar Aalto’s method, using the same terms that the Danish architect defined: Scientific Observation, for the study of preceding works and projects in light prefabrication and for the analysis of certain construction products and systems that, based on other research, have evaluated their LCA, and Construction Period, for the rehabilitation strategies of the “El Rodezno” mill, considering the studies and analyses of Scientific Observation. For the roof solution, we took as an example the rehabilitation of the roof carried out with the same methodology, construction criteria, and prefabricated products analysed in this article and used in the intervention strategies in “El Rodezno”. The paper concludes with the validity of the methodology applied to test the starting hypotheses that lead to intervention strategies that confirm the environmental and economic advantages of industrialised prefabrication, the importance of the design and synergy that results from combining different construction systems, and technologies that improve the acceptance of prefabrication by the inhabitant and boost the circular economy.
Addressing Nutrient Depletion in Tanzanian Sisal Fiber Production Using Life Cycle Assessment and Circular Economy Principles, with Bioenergy Co-Production
Authors: Colley Tracey Anne , Valerian Judith , Hauschild Michael Zwicky , Olsen Stig Irving , Birkved Morten
Published: August 2021

Nutrient depletion in Tanzanian sisal production has led to yield decreases over time. We use nutrient mass balances embedded within a life cycle assessment to quantify the extent of nutrient depletion for different production systems, and then used circular economy principles to identify potential cosubstrates from within the Tanzanian economy to anaerobically digest with sisal wastes. The biogas produced was then used to generate bioelectricity and the digestate residual can be used as a fertilizer to address the nutrient depletion. Life cycle assessment was used in a gate-to-gate assessment of the anaerobic digestion options with different cosubstrates. If no current beneficial use of the cosubstrate was assumed, then beef manure and marine fish processing waste were the best cosubstrates. If agricultural wastes were assumed to have a current beneficial use as fertilizer, then marine fish processing waste and human urine were the best cosubstrates. The largest reduction in environmental impacts resulted from bioelectricity replacing electricity from fossil fuels in the national electricity grid and improved onsite waste management practices. There is significant potential to revitalize Tanzanian sisal production by applying circular economy principles to sisal waste management to address soil nutrient depletion and co-produce bioenergy.
An Intelligent and Autonomous Sight Distance Evaluation Framework for Sustainable Transportation
Authors: Singhal Vivek , Anand Divya , Aljahdali Hani Moaiteq , Goyal Nitin , Singh Aman , Kadry Seifedine
Published: August 2021

Railways are facing a serious problem of road vehicle–train collisions at unmanned railway level crossings. The purpose of the study is the development of a safe stopping sight distance and sight distance from road to rail track model with appropriate computation and analysis. The scope of the study lies in avoiding road vehicle–train collisions at unmanned railway level crossings. An intelligent and autonomous framework is being developed using supervised machine learning regression algorithms. Further, a sight distance from road to rail track model is being developed for road vehicles of 0.5 to 10 m length using the observed geometric characteristics of the route. The model prediction accuracy obtained better results in the development of a stopping sight distance model in comparison to other intelligent algorithms. The developed model suggested an increment of approximately 23% in the current safe stopping sight distance on all unmanned railway level crossings. Further, the feature analysis indicates the ‘approach road gradient’ to be the major contributing parameter for safe stopping sight distance determination. The accident prediction study finally indicates that, as the safe stopping sight distance is increased by following the developed model, it is predicted to decrease road vehicle–train collisions.
Defining Pathways towards African Ecological Futures
Authors: Scheren Peter , Tyrrell Peter , Brehony Peadar , Allan James R. , Thorn Jessica P. R. , Chinho Tendai , Katerere Yemi , Ushie Vanessa , Worden Jeffrey S.
Published: August 2021

Africa has experienced unprecedented growth across a range of development indices for decades. However, this growth is often at the expense of Africa’s biodiversity and ecosystems, jeopardizing the livelihoods of millions of people depending on the goods and services provided by nature, with broader consequences for achieving the United Nations Sustainable Development Goals. Encouragingly, Africa can still take a more sustainable path. Here, we synthesize the key learnings from the African Ecological Futures project. We report results from a participatory scenario planning process around four collectively-owned scenarios and narratives for the evolution of Africa’s ecological resource base over the next 50 years. These scenarios provided a lens to review pressures on the natural environment, through the drivers, pressures, state, impacts, and responses (DPSIR) framework. Based on the outcomes from each of these steps, we discuss opportunities to reorient Africa’s development trajectories towards a sustainable path. These opportunities fall under the broad categories of “effective natural resource governance”, “strategic planning capabilities”, “investment safeguards and frameworks”, and “new partnership models”. Underpinning all these opportunities are “data, management information, and decision support frameworks”. This work can help inform collaborative action by a broad set of actors with an interest in ensuring a sustainable ecological future for Africa.
Extended Maximal Covering Location and Vehicle Routing Problems in Designing Smartphone Waste Collection Channels: A Case Study of Yogyakarta Province, Indonesia
Authors: Sari Diana Puspita , Masruroh Nur Aini , Asih Anna Maria Sri
Published: August 2021

Most people will store smartphone waste or give it to others; this is due to inadequate waste collection facilities in all cities/regencies in Indonesia. In Yogyakarta Province, there is no electronic waste collection facility. Therefore, an e-waste collection network is needed to cover all potential e-waste in the province of Yogyakarta. This study aims to design a collection network to provide easy access to facilities for smartphone users, which includes the number and location of each collection center and the route of transporting smartphone waste to the final disposal site. We proposed an extended maximal covering location problem to determine the number and location of collection centers. Nearest neighbor and tabu search are used in forming transportation routes. The nearest neighbor is used for initial solution search, and tabu search is used for final solution search. The study results indicate that to facilitate all potential smartphone waste with a maximum distance of 11.2 km, the number of collection centers that must be established is 30 units with three pick-up routes. This research is the starting point of the smartphone waste management process, with further study needed for sorting, recycling, repairing, or remanufacturing after the waste has been collected.
Understanding Hazardous Waste Exports for Disposal in Europe: A Contribution to Sustainable Development
Authors: Callao Carmen , Latorre M. Pilar , Martinez-Núñez Margarita
Published: August 2021

The concept of sustainable development was introduced in Europe by the Treaty of Amsterdam (1997) and was extended to waste management in the Waste Framework Directive. In order to achieve sustainable development, hazardous waste (HW) must be managed safely and in accordance with regulations. This also applies to worldwide HW transport, especially when HW is shipped for disposal. The United Nations, through the Basel Convention, aims to prevent the export of HW from developed countries to developing countries for disposal. In Europe, HW shipments are regulated by Regulation (EC) No. 1013/2006 of the European Parliament and by the Council of 14 June 2006 on shipments of waste. Additionally, all HW shipments must be in accordance with two principles contained in the Waste Framework Directive: proximity and self-sufficiency. Using data from 2014 and network analysis methodology, this paper fills the gaps in the scientific literature by looking at how shipments of HW travel for disposal in Europe, how the regulations affect these shipments and how GDP per capita influences the shipment of waste. The results show that countries with a high GDP per capita play an important role in the network (having the highest in-degree) and that the absence of landfill taxes for HW does not influence HW shipments for disposal. Therefore, countries in the EU act in accordance with the proximity and self-sufficiency principles.
High-Efficiency Triple-Band RF-to-DC Rectifier Primary Design for RF Energy-Harvesting Systems
Authors: Papadopoulou Maria S. , Boursianis Achilles D. , Volos Christos K. , Stouboulos Ioannis N. , Nikolaidis Spyridon , Goudos Sotirios K.
Published: August 2021

Radio Frequency (RF) energy harvesting has been emerged as a potentially reliable method to replace the costly and difficult to maintain source of low-power wireless sensor networks. A plethora of dual-band rectifier designs has been proposed in the literature operating in various frequency bands. In this paper, a triple-band RF-to-DC rectifier that operates in the frequency bands of LoRaWAN, GSM-900, and WiFi 2.4 GHz is presented. The system is composed of an impedance-matching circuit, an RF-to-DC rectifier, that converts the ambient RF energy into DC voltage able to feed low-power devices, and an output load. The proposed system resonates at three different frequencies of 866 MHz, 948 MHz and 2423 MHz, which fall within the aforementioned frequency bands of interest. The feasible solution of the proposed system was based on a dual-band rectifier operating in the frequency bands of LoRaWAN and GSM-900. A series of shunt stubs was utilized in the initial design to form the feasible solution of the proposed system. The proposed triple-band rectifier was optimized using a powerful optimization algorithm, i.e., the genetic algorithm. The overall system exhibited improved characteristics compared to the initial design in terms of its resonance. Numerical results demonstrated that the overall system exhibited an efficiency of 81% with 3.23 V of the output voltage, for an input power of 0 dBm and a load of 13 kOhm.
Bacterial Enrichment Cultures Biotransform the Mycotoxin Deoxynivalenol into a Novel Metabolite Toxic to Plant and Porcine Cells
Authors: Vanhoutte Ilse , De Tender Caroline , Demeyere Kristel , Abdallah Mohamed F. , Ommeslag Sarah , Vermeir Pieter , Saeger Sarah De , Debode Jane , Meyer Evelyne , Croubels Siska , Audenaert Kris , De Gelder Leen
Published: August 2021

The mycotoxin deoxynivalenol (DON), produced in wheat, barley and maize by Fusarium graminearum and Fusarium culmorum, is threatening the health of humans and animals. With its worldwide high incidence in food and feed, mitigation strategies are needed to detoxify DON, maintaining the nutritional value and palatability of decontaminated commodities. A promising technique is biological degradation, where microorganisms are used to biotransform mycotoxins into less toxic metabolites. In this study, bacterial enrichment cultures were screened for their DON detoxification potential, where DON and its potential derivatives were monitored. The residual phytotoxicity was determined through a bioassay using the aquatic plant Lemna minor L. Two bacterial enrichment cultures were found to biotransform DON into a still highly toxic metabolite for plants. Furthermore, a cytotoxic effect was observed on the cellular viability of intestinal porcine epithelial cells. Through liquid chromatography high-resolution mass spectrometry analysis, an unknown compound was detected, and tentatively characterized with a molecular weight of 30.0 Da (i.e., CH2O) higher than DON. Metabarcoding of the subsequently enriched bacterial communities revealed a shift towards the genera Sphingopyxis, Pseudoxanthomonas, Ochrobactrum and Pseudarthrobacter. This work describes the discovery of a novel bacterial DON-derived metabolite, toxic to plant and porcine cells.
Clinical and epidemiological characteristics of trichinosis: literature review and description of the case of invasion
Authors: Blagova Nadezhda Nikolaevna , Khudoyan Zadyne Gurgenovna , Druzhinina Tatyana Aleksandrovna , Krugovaya Mariya Konstantinovna
Published: August 2021

With the previously fairly wide prevalence of trichinosis, the disease has become less frequent in statistical reports in recent years. The aim of this work was to analyze the clinical and epidemiological features of trichinellosis in the Russian Federation at the present stage and to describe a case of trichinellosis registered in 2018 in the Yaroslavl region. Trichinosis is a natural focal disease, the main foci of which are formed among wild animals. A person is much less likely to be involved in the epidemic process. At the same time, the disease can occur with characteristic clinical manifestations (fever, eosinophilia, facial edema), and atypically. The article presents a case of an atypical erased course of the disease, which at the initial treatment did not allow to suspect the presence of parasitosis. In this regard, an important role in the diagnosis of trichinosis, in addition to traditional laboratory studies, acquires an epidemiological history.
Evaluation of the organization of healthy free hot food for students in grades 1–4
Authors: Novikova I.I. , Gavrish S.M. , Sorokina A.V. , Semenikhina M.V. , Grabko L.B.
Published: August 2021

The article presents the results of a survey of parents of junior high school students and parental control over the organization of meals. In the course of the sociological research the questions of satisfaction with the organization of hot breakfasts and lunches for pupils of classes 1–4 in connection with the transition to the 100 % coverage with healthy, hot free meals in general educational institutions were studied. Parents of children in grades 1–4 from 60 regions of the Russian Federation participated in the survey. Information was obtained and analyzed on the satisfaction of schoolchildren with organized meals according to the following criteria — satisfaction with the variety of meals, portion size, the number of meals offered, and their taste. The results of parental control are presented, which made it possible to identify the main directions of improving the organization of children’s meals — increasing the duration of breaks, monitoring children’s compliance with the rules of personal hygiene, organizing meals for children who require an individual approach to the organization of food for health reasons.
Tendencies of morbidity of children of Altai Region and its relationship with socio-economic indicators
Authors: Pashkov Artem Petrovich , Bayankin Oleg Vasilievich , Vorontsov Pavel Gennadievich , Zhukova Olga Viktorovna , Martynenko Andrey Igorevich , Trebushinina Tatyana Grigorievna , Lobygina Natalya Mikhailovna
Published: August 2021

The problem of the health status of the child population is one of the key health issues. Given the general patterns in the incidence of this age group, it is necessary to study and analyze the regional aspects of the problem. The aim of the work was to identify trends in the incidence of the child population of the Altai Territory and to assess the impact on the morbidity picture of indicators of socio-economic development. The primary morbidity by various nosologies for the last five years has been analyzed. The indicators of the socio-economic development of the territories are taken from the reports of the Office of the Federal State Statistics Service for the Altai Territory and the Altai Republic. The work performed the ranking of territories by the incidence rate with subsequent mapping. Statistical processing was carried out using classical statistical analysis. A tendency to an increase in the incidence rate or an excess of the national average in such groups of diseases as neoplasms, diseases of the endocrine system, diseases of the digestive system, diseases of the circulatory system, diseases of the genitourinary system, congenital anomalies was revealed. Identification of patterns in the territorial distribution of disadvantaged, from the point of view of morbidity rates, rural areas and cities, as well as a significant correlation, indicates the presence of common factors affecting the epidemiological situation. As a result of the study, a significant correlation was determined between the indicators of primary morbidity of certain groups of nosologies and socio-economic indicators. It is necessary to study in more detail the influence of each environmental factor on the primary morbidity rate in the regional aspect. When assessing the influence of environmental factors on morbidity, it is important to take into account the socio-economic indicators of the territory.
Ciência decodificada : pitch científico
Authors:   Universidade Federal de São Paulo
Published: August 2021

O movimento de apresentação do pitch científico é uma oportunidade de aproximar aqueles que foram distanciados e negados do conhecimento em sua forma mais robusta ou melhor dizendo, elitizada. É pensar em uma universidade que acessibilize e que considere todo o processo sócio-histórico brasileiro
Perspektif Antropologi Kesehatan: Pengobatan Tradisional Cacar Air Pada Anak Di Minanga Kabupaten Tana Toraja
Authors: Nasaruddin Resky Purnamasari
Published: August 2021

Toraja people, especially in Minanga, still strongly believe in traditional medicine which he believes is an alternative to cure diseases that cannot be treated with medical treatment alone. One of the diseases that often attacks children in Minanga, Bungtu Tangti sub-district, is chickenpox or puru. Chickenpox is a disease caused by a virus that attacks antibodies, especially for children. This disease is highly contagious, pandemic and seasonal. The mode of transmission is in the form of direct contact with patients through nasal droplets, or fluid in vesicles so that it can easily attack children whose immune power is still not strong. So that parents have the knowledge that he reconstructs into an action to prevent their children from getting chickenpox as early as possible and even if they have been affected, they can quickly treat it by utilizing the natural products around them. Through this research, the author intends to examine the knowledge of traditional medicine in the perspective of Health Anthropology. This study uses qualitative methods, observation and in-depth interviews through holistic understanding. The results of this study show that from the perspective of Health anthropology, it is found how people in Minanga have an understanding of traditional local medicine related to human behavior that has cultural knowledge related to disease, and how to treat disease and how to treat it to protect family health against chickenpox infection.
 
Masyarakat Toraja khususnya di Minanga masih sangat percaya dengan pengobatan tradisional yang diyakininya sebagai alternatif penyembuhan penyakit yang tidak bisa disembuhkan dengan pengobatan medis saja. Salah satu penyakit yang sering menyerang anak-anak di Minanga, Kecamatan Bungtu Tanti, adalah cacar air atau puru. Cacar air adalah penyakit yang disebabkan oleh virus yang menyerang antibodi, terutama untuk anak-anak. Penyakit ini sangat menular, pandemik dan musiman. Cara penularannya berupa kontak langsung dengan penderita melalui droplet hidung, atau cairan dalam vesikel sehingga mudah menyerang anak-anak yang daya tahan tubuhnya masih belum kuat. Agar para orang tua memiliki pengetahuan yang ia rekontruksi menjadi sebuah tindakan untuk mencegah anaknya terkena cacar air sedini mungkin dan bahkan jika sudah terkena dapat segera mengobatinya dengan memanfaatkan bahan alam yang ada disekitarnya. Melalui penelitian ini, penulis bermaksud untuk mengkaji pengetahuan pengobatan tradisional dalam perspektif Antropologi Kesehatan. Penelitian ini menggunakan metode kualitatif, observasi dan wawancara mendalam melalui pemahaman holistik. Hasil penelitian ini menunjukkan bahwa dari perspektif Antropologi Kesehatan, ditemukan bagaimana masyarakat Minanga memiliki pemahaman tentang pengobatan tradisional lokal terkait dengan perilaku manusia yang memiliki pengetahuan budaya terkait penyakit, serta cara pengobatan penyakit dan cara pengobatannya. untuk melindungi kesehatan keluarga dari infeksi cacar air.
Analisis Deskriptif Kematian Neonatal Di Rumah Sakit X Kabupaten Kediri Pada Tahun 2018
Authors: Bisono Eva Firdayanti , Oktrianadewi Sevi , Pranoto Budi , Wijayati Ekawati Wasis , Jayanti Krisnita Dwi
Published: August 2021

Health efforts are made to control the risk of death it like keep delivery can be carried out by health workers at the health facilities and ensure health care service standars on a visit of a newborn infant. The purpose of this research is to find visions of death neonatal in the hospital x ditrict Kediri. Research methodology descriptive and use this approach retrospective. The result of this research the number of infant mortality in 2018 as much as 185 death, with many infant mortality male sex as much as 110, and the time of death most less is more than equal to 48 hours 102 cases as many, infant mortality was greatest in October and December, the type of insurance used most BPJS as many as 86 and disesase cause of death most were low birth weight (LBW) as much as 93 cases. This is infant mortality rate which is 67,79 per 1000 live births. Should value the infant mortality reate can always do be done to a base in the plan for the hospital in providing some facilities can make mothers and children visited hospital especially full attention in October and December. 
 
Upaya kesehatan yang dapat dilakukan untuk mengendalikan risiko kematian neonatus diantaranya dengan mengupayakan agar persalinan dapat dilakukan oleh tenaga kesehatan di fasilitas kesehatan serta menjamin tersedianya pelayanan kesehatan sesuai dengan standar pada kunjungan bayi baru lahir. Tujuan penelitian ini adalah untuk mengetahui gambaran kematian neonatal di RS X Kabupaten Kediri. Metode penelitian ini dengan deskriptif dan menggunakan pendekatan retrospetif. Hasil penelitian ini jumlah kematian bayi tahun 2018 sebanyak 185 kematian, dengan banyak kematian bayi berjenis kelamin laki laki sebesar 110, dan waktu kematian terbanyak ≤ 48 Jam sebanyak 102 kasus, kematian bayi paling banyak terjadi pada bulan Oktober dan Desember, jenis jaminan kesehatan yang digunakan paling banyak BPJS sebanyak 86 dan penyakit penyebab kematian terbanyak adalah Bayi Berat Lahir Rendah (BBLR) sebanyak 93 kasus. Hasil perhitungan Angka Kematian Bayi yaitu sebesar 67,79 per 1000 kelahiran hidup. Sebaiknya nilai Angka Kematian Bayi dapat selalu dilakukan untuk dasar dalam membuat perencanaan bagi rumah sakit dalam menyediakan sarana dan prasarana yang dapat mendukung kesehatan ibu dan anak yang melakukan kunjungan ke rumah sakit utamanya perhatian penuh pada bulan Oktober dan Desember.