bluuebunny/crossref_metadata_2025 huggingface dataset:
Skatescape in the Making: Developing Sustainable Urban Pedagogies through Transdisciplinary Education
Authors: Kallio Kirsi Pauliina , Jokela Salla , Kyrönviita Mikko , Laine Markus , Taylor Jonathon
Published: August 2021

The current trend of higher education for sustainable urban development links with parallel developments in urban governance and environmental pedagogy. Many programs and policies identify cities and citizens as key drivers of change for sustainable futures, however scholarly work on the related pedagogies is lacking. These endeavors are clearly present in the Tampere city-region, Finland. Supported by national educational and city-regional strategies, the city is promoting sustainable lifestyles and infrastructures by means of multistakeholder governance including citizen participation and sustainability education. This paper analyzes, as a case study of transdisciplinary sustainability education, a collaboration between Tampere University, a skateboarding high school, and the Hiedanranta urban district developed as a real-life laboratory of sustainable urban development. We explore the pedagogical dimensions of the collaboration by drawing from the theoretical perspective of ‘positive recognition’ and conceiving the Hiedanranta skatescape—a socio-physical entity formed around skateboarding—as a ‘boundary object’. The paper suggests urban environments act as boundary objects that enable productive collaboration between various actors when informed by pedagogies of positive recognition. In conclusion, we propose that the value of this approach, binding together multistakeholder governance and transdisciplinary learning, lies in its capacity to encourage novel forms of sustainable agency.
Recommendation of Good Practice in the Food-Processing Industry for Preventing and Handling Food Loss and Waste
Authors: Rösler Florian , Kreyenschmidt Judith , Ritter Guido
Published: August 2021

Food-processing companies are controlled by societal influences and economic interests, but their efforts with regard to reducing food loss and waste are very different. This qualitative study aims to identify basic recommendations of good practice for the food-processing industry in order to prevent and handle food loss and waste. For this purpose, a comprehensive literature review was conducted in the field of food waste prevention and data was collected from thirteen German companies. The findings summarize the recommendations of good practice, which cover the entire supply chain from supplier to consumer and beyond. The analysis showed that the participating companies are already partially aware of operational measures, even if they are applied or mentioned without a systematic approach. Furthermore, the analysis revealed that most activities relate to internal matters, like processing, employees and utilization. However, the responsibility of food-processing companies does not end with internal processes to reduce food waste. The results show that some companies are already aware of their responsibility to be involved along the entire supply chain. Finally, the results show that the needs of consumers and suppliers must also be considered in order to reduce food waste, in addition to direct reduction measures. This paper highlights nine important stages and 53 basic recommendations for companies to address food loss and waste in order to improve their practices.
Towards an Adaptation of Efficient Passive Design for Thermal Comfort Buildings
Authors: Elshafei Ghada , Vilcekova Silvia , Zelenakova Martina , Negm Abdelazim M.
Published: August 2021

This paper discusses the effect of various climatic conditions that pertain to passive design measurements and their relationships with building configurations to improve indoor thermal comfort based on the different climate zones in Egypt to support Egypt’s sustainability agenda 2030. We find the most appropriate design settings that can increase the indoor thermal comfort, such as building orientation and shape. These settings can be modeled using DesignBuilder software combined with Egyptian meteorological data. This software is used accompanied by computational fluid dynamics to numerically assess the outcomes of different changes, by simulating indoor climate condition factors such as wind speed and temperature. Natural ventilation simulations were performed for four different shapes to create comprehensive dataset scenarios covering a general range of shapes and orientations. Seven scenarios were optimized to put forward a series of building bioclimatic design approaches for the different characteristic regions. The results indicated that the temperature decreased by about 3.2%, and the air velocity increased within the study domain by 200% in the best and the worst cases, respectively, of the four different shapes. The results of the study gave evidence that the configuration of buildings, direction, and wind speed are very important factors for defining the natural ventilation within these domains to support the green building concept and the sustainable design for a better lifestyle.
The ‘Sharing Trap’: A Case Study of Societal and Stakeholder Readiness for On-Demand and Autonomous Public Transport in New South Wales, Australia
Authors: Dolins Sigma , Wong Yale Z. , Nelson John D.
Published: August 2021

Focus groups on shared, autonomous vehicles (SAVs) in New South Wales expressed “sharing anxiety”—an intense concern about the prospect of sharing their mobility journey with strangers, without a driver or authority figure present. This presents a significant barrier to the acceptance of SAVs, particularly autonomous public and on-demand transport (ODT), which is a major focus for Transport for New South Wales (TfNSW). Given this potential barrier, we interviewed (N = 13) operators, academics, and regulators with TfNSW to assess their role and abilities in overcoming sharing anxiety. However, our findings revealed a relative lack of awareness from experts in the mobility industry about the existence of sharing anxiety in users, suggesting additional barriers to adoption. We make suggestions for policy considerations for stakeholders that could mitigate sharing anxiety: promoting dynamic ridepooling products in commercial services, using tax breaks as incentivization; requiring ODT services and operators in jurisdiction to use a standardized, unified interface for users (“single-app”); shared, on-demand transport services likely need longer incubation/pilot periods in order for the sharing behavior to become culturally established. We conclude with a reflection on how COVID-19 has impacted the development of shared mobility and suggest further exploration in policy implementation.
Sequential Model for Long-Term Planning of Building Renewal and Capital Improvement
Authors: Bucoń Robert , Czarnigowska Agata
Published: August 2021

The paper puts forward a mixed integer linear programming model to support the long-term planning and budgeting for renewal and capital improvements of residential buildings, i.e., to select the optimal sequence of repair and improvement actions over a predefined planning horizon. The input is provided by the evaluation of the building performance according to a set of criteria. Then a set of possible repairs, replacements and improvements needs to be proposed together with the estimates of their cost and benefits; the latter are expressed by increments of building performance ratings according to predefined criteria. The renewal and modernization measures are not mutually independent: at least some of them are complementary and should be carried out in a specific order. The optimization problem was to define the order of renewal/improvement measures resulting with the highest benefits available within the budget, or to achieve the required levels of building performance at the lowest cost. A unique feature of the model is the approach to the constraints on sequential relationships between the measures and to their selection. The model can be used to construct long-term renewal and capital improvement plans.
Load Balancing Algorithm on the Immense Scale of Internet of Things in SDN for Smart Cities
Authors: Babbar Himanshi , Rani Shalli , Gupta Divya , Aljahdali Hani Moaiteq , Singh Aman , Al-Turjman Fadi
Published: August 2021

Since the worldwide Internet of Things (IoT) in smart cities is becoming increasingly popular among consumers and the business community, network traffic management is a crucial issue for optimizing the IoT ’s performance in smart cities. Multiple controllers on a immense scale implement in Software Defined Networks (SDN) in integration with Internet of Things (IoT) as an emerging paradigm enhances the scalability, security, privacy, and flexibility of the centralized control plane for smart city applications. The distributed multiple controller implementation model in SDN-IoT cannot conform to the dramatic developments in network traffic which results in a load disparity between controllers, leading to higher packet drop rate, high response time, and other problems with network performance deterioration. This paper lays the foundation on the multiple distributed controller load balancing (MDCLB) algorithm on an immense-scale SDN-IoT for smart cities. A smart city is a residential street that uses information and communication technology (ICT) and the Internet of Things (IoT) to improve its citizens’ quality of living. Researchers then propose the algorithm on the unbalancing of the load using the multiple controllers based on the parameter CPU Utilization in centralized control plane. The experimental results analysis is performed on the emulator named as mininet and validated the results in ryu controller over dynamic load balancing based on Nash bargaining, efficient switch migration load balancing algorithm, efficiency aware load balancing algorithm, and proposed algorithm (MDCLB) algorithm are executed and analyzed based on the parameter CPU Utilization which ensures that the Utilization of CPU with load balancing is 20% better than the Utilization of CPU without load balancing.
Model Test Study on the Influence of Ground Surcharges on the Deformation of Shield Tunnels
Authors: Wei Gang , Zhang Shuming , Xiang Pengfei
Published: August 2021

Aiming at studying the harm caused by sudden ground loadings on existing shield tunnels, a indoor scaled model test with a geometric similarity ratio of 1:15.5 was adopted. Considering the influencing factors such as ground loading, burial depth of the shield tunnel, loading position and soil properties, tunnel convergence deformation, tunnel settlement and deep settlement of soil caused by sudden ground loadings are studied. A three-dimensional finite element simulation is carried out using the Midas software, and deep settlement of soil is calculated by a theoretical method. The purpose of this model test is to further understand the influence of ground surcharges on shield tunnel deformation. The results show that the greater the ground surcharge, the greater the settlement and vertical convergence deformation of the shield tunnel; The further away from the ground surcharge, the smaller the settlement, vertical convergence deformation and lateral convergence deformation of the tunnel. When the pile load size is constant, the greater the burial depth of the tunnel, the smaller the vertical convergence deformation and settlement of the tunnel; the maximum value of deep settlement of the soil always remains at the closest point to the ground surcharge; compared with the use of dry sand, the vertical convergence deformation and settlement of the tunnel are significantly reduced when using wet sand. Both the theoretical calculation results and the numerical simulation results are in good agreement with the indoor model test results.
Prevalence of Nasal Shedding of Equid Gammaherpesviruses in Healthy Swiss Horses
Authors: Scheurer Laura , Bachofen Claudia , Hardmeier Isabelle , Lechmann Julia , Schoster Angelika
Published: August 2021

Equid Gamma herpesvirus (eGHV) infections have been reported worldwide and may be correlated with clinical signs, e.g., affecting the respiratory tract in young horses. eGHV are shed by healthy horses as well as horses with respiratory tract disease. The prevalence in healthy Swiss horses is unknown to date but this data would provide valuable information for causal diagnosis in clinical cases and formulation of biosecurity recommendations. Nasal swabs from 68 healthy horses from 12 Swiss stables and 2 stables near the Swiss border region in Germany were analyzed by panherpes nested PCR. Positive samples were sequenced. A multivariable model was used to determine if sex, age, breed, canton, or stable had a significant effect on the shedding status of each detected eGHV. Overall, the eGHV prevalence was 59% (n = 68); the prevalence for equid herpesvirus-2 (EHV-2), equid herpesvirus-5 (EHV-5) and asinine herpesvirus-5 (AHV-5) was 38%, 12% and 9%, respectively. Co-infections with multiple eGHVs were observed in 25% of the positive samples. The odds of shedding EHV-2 decreased with age (p = 0.01) whereas the odds of shedding AHV-5 increased with age (p = 0.04). Breed, sex, canton, or stable had no significant association with eGHV shedding. As EHV-2 shedding was common in healthy horses a positive PCR result must be interpreted with caution regarding the formulation of biosecurity recommendations and causal diagnosis. As EHV-5 and AHV-5 shedding was less common than EHV-2, a positive test result is more likely to be of clinical relevance. Shedding of multiple eGHV complicates the interpretation of positive test results in a horse.
Erratum: Mewis, P. Estimation of Vegetation-Induced Flow Resistance for Hydraulic Computations Using Airborne Laser Scanning Data. Water 2021, 13, 1864
Authors: Mewis Peter
Published: August 2021

The author would like to make the following corrections to the published paper [...]
Public Participation for Integrated Groundwater Management: The Case of Maneadero Valley, Baja California, Mexico
Authors: Villada-Canela Mariana , Muñoz-Pizza Dalia Marcela , García-Searcy Vanesa , Camacho-López Raquel , Daesslé Luis Walter , Mendoza-Espinosa Leopoldo
Published: August 2021

There is a controversy in groundwater management: some people argue that public participation has decreased efficiency in decision-making, while others believe this process is not executed effectively. Questions about whether public participation results from the context involving influential people, the rules, or the way participation mechanisms were designed need examination. In this study, opportunities, barriers, and challenges of public participation were analyzed in the management of a coastal aquifer affected by marine intrusion in the Maneadero Valley, México. Mixed methods were implemented, involving 28 interviews with key actors and 50 surveys conducted during 2014 and 2017 with groundwater users. Results show that public participation is mainly determined by power differences, lack of continuity in the participatory processes, and the design of the participation mechanisms. State actors have greater decision-making power in integrated groundwater management. In contrast, groundwater users have limited participation in the process of making proposals, and their participation is generally passive. There are limitations to broad, informed, and responsible public participation: examples of these limitations include different levels of information, inappropriate institutional arrangements, failure to disseminate scientific information, lack of spaces to exercise public participation, and absence of political will. Hence, to improve Maneadero aquifer management, it is necessary to decentralize decision-making, integrate technical and non-technical knowledge, generate scientific evidence about water availability, and give a prominent role to stakeholders and users from the initial stages. In addition, internalization and water culture are required. These results can help to guide integrated groundwater management in other arid regions.
Flood Disaster Risk Perception and Urban Households’ Flood Disaster Preparedness: The Case of Accra Metropolis in Ghana
Authors: Yin Qi , Ntim-Amo Gideon , Ran Ruiping , Xu Dingde , Ansah Stephen , Hu Jinfu , Tang Hong
Published: August 2021

Flood disaster has gained global attention due to the huge impact it has on human lives, economies, and sustainable environments. Flood disaster preparedness, which can significantly be influenced by disaster risk perception, has been highlighted as an effective way to manage flood disaster risk, as many other means have proved futile, yet no study has attempted using multiple dimensions to analyze this relationship in Ghana. Therefore, this study, using a survey of 369 households in the most flood-prone region, Accra Metropolis, analyzed the influence of flood disaster risk perception on urban households’ flood disaster preparedness. Based on the Protective Action Decision Model, the empirical models were constructed and estimated using the Tobit and binary logistic regression models. The results show that the majority of households (60.16%) were unprepared for flood disasters, and the perception of flood disaster risk and the sustainability risk posed by floods significantly affect flood disaster preparedness behaviours of households in a positive direction. The total number of flood disaster preparedness behaviours adopted was significantly related to probability, the threat to lives, sense of worry, and sustainability risk perceptions. Finally, income, education, and house ownership, among other household and individual characteristics, had significant positive effects on preparations for flood disasters. These findings suggest that effective policies to mitigate flood disasters must incorporate risk communication to boost households’ flood disaster preparedness.
Public lecture of judge Atanaska Disheva – member of the Supreme Judicial Council – before law students on the topic: “The role of the prosecutor in the administrative proceedings
Authors: Nikolova Raina
Published: August 2021

The public lecture is dedicated to the issue of the prosecutor’s supervision on the activities of the administrative bodies within the principle of separation of powers and the principle of rule of law. It provides the opportunity to make more specific the scope of the prosecutor’s function on ensuring the legal order.
Doctrine «deterrence by denial» in modern diplomacy
Authors: Bartosh Alexander A.
Published: August 2021

The security environment today is more complex and demanding than at any time since the end of the cold war, which increases the need for States and their coalitions to ensure the reliability and effectiveness of deterrence and defense policies. The issue of deterrence is becoming central to the national security policies of the great Powers, and deterrence strategies are becoming a prominent component of foreign policy and diplomacy in a multipolar world. At the same time, the effectiveness of traditional methods of deterrence through punishment decreases, while the importance of the doctrines of coercion and deterrence through denial increases, which play an increasing role as tools of hybrid war as a new form of interstate confrontation and naturally complement strategic nuclear and non-nuclear deterrence with high-precision weapons in conventional equipment. In conditions of limited scale of military operations, the doctrine of deterrence by punishment quickly turns into coercion, when it is necessary not only to "dissuade" the aggressor, but also to oust him and force him to retreat from the accomplished limited, hidden conquest. Against the background of the decline in the possibilities of deterrence by punishment, the doctrine of "Deterrence by denial", designed to create physical obstacles to the enemy, to make it difficult for him to achieve his goal, is gaining more and more development in politics and diplomacy. The effectiveness of this form of deterrence depends on the fear associated with the costs that will be incurred by the enemy during the act of aggression in the place where it will occur. Deterrence by negation is designed to make aggression unprofitable, make it harder to capture a target, and make it harder to hold it. The transformation of deterrence doctrines leads to the emergence of new tasks and tactics of modern diplomacy in a rapidly changing world.
Legal framework of economic diplomacy in Russia
Authors: Naryshkin Andrey A.
Published: August 2021

Economic diplomacy is the most important tool for the state and entrepreneurs in their foreign economic activity. It provides not only foreign contracts (including for the supply of large firms) and the inflow of foreign currency, but also investments attraction, which contributes to its development. Profit received from foreign economic activity goes to the state budget with taxes and then directed to social needs improving citizens welfare. Diplomatic relations between different countries are based on international conventions on diplomatic intercourse covering the diplomatic agent’s legal status. International trade agreements regulate international standards and procedures for goods carried from country to country, as well as dispute processes arising at the supranational level. International agreements forming conditions for Russian companies’ operations in the foreign markets and for the work of foreign investors in Russia. All foreign markets activities are regulated by legal acts. Such regulation is aimed to ensure goal-setting, simplicity and transparency of domestic entrepreneurs and foreign counterparties interaction and to reduce the risks of dependency on foreign markets and counterparties. This article reviews the Russian legal economic diplomacy basis, key strategic documents covering this area. Also, proposals to improve the legal framework for foreign representations promoting Russia's foreign economic interests abroad are done. Analyzing official statistics, the article examines the practical effect of the main strategic documents. All these measures are aimed to ensure comfortable working conditions for Russian manufacturers of various goods and services on foreign markets.
Astronomical News in kurunthogai
Authors: K Boopathi , S Aruchamy
Published: August 2021

Science was born as the word knowledge. A society can think of distant air, planets, moon, Sun, etc., only after learning about the nature and kinetic elements of the objects around it. Among the most important of the Tamil literatures, the first of the Sangam literatures to be considered by the intellectual masses is the kurunthogai. Although the subject matter literature, the small amount, is based on the microstructures, the messages naturally referred to explain the subject matter are scientifically oriented. The purpose of this article is to take a closer look at the astronomical messages being studied in kurunthogai.
When the Leader is Born as A Competitor (WLBC)
Authors: Maulana Agus , Maulana Raju
Published: August 2021

The presence of humans on earth is a gift of leadership and humans are born with their destiny as leaders for themselves, their families, and the surrounding community. The challenges that are faced every day are important factors in shaping the character of one's self and soul so that it has implications for a leader when taking part in society. Jokowi as a figure of a leader who was forced by circumstances, his family, and society formed himself into a leader with a different character, and it is said that an expert is a Servant Leader. Methodology qualitative and narrative descriptive analysis methods on literature review. Comparisons of expert opinions and theories as well as relating several important events in the lives of characters through audio and video as well as real-life stories. Jokowi's leadership has become an inspiration for many people so that the author is interested in seeing and observing more deeply from the historical side of Jokowi, from the selectivity of a biography and the history of success as a company leader, major, governor and president, this is also what makes the writer's way of thinking finding a new view of leadership theory which is referred to in the term WLBC, along with the many theories of styles and characteristics and types of leadership by previous experts, writers and researchers. There are three finding factors that strongly influence the formation of Jokowi's character which are applied in ten indicators, three factors including family, community, and personal responsibility.
Serial sobre emprendimiento turístico: la gestión de los sitios de turismo religioso
Authors: Martínez Cárdenas Rogelio , Pablo-Romero Gil-Delgado María del Pópulo , Sánchez-Rivas García Javier
Published: August 2021

Con el objetivo de vislumbrar oportunidades de emprendimiento en el sector turístico, se plantea un serial audiovisual dirigido al alumnado de postgrado en el que se tratan distintos nichos de mercados basados en necesidades o productos de reciente demanda ligadas al sector.
En este segundo vídeo se aborda la gestión de los sitios de turismo religioso surgido a partir del de desarrollo de una actividad turística ligada a la mercantilización de un hecho espiritual o religioso. Se tratan elementos sistemáticos que interfieren en este tipo de turismo desde distintas dimensiones: Social, Cultural, Geográfica, Ambiental y Económica, señalando las oportunidades de negocio que pueden surgir a este respecto.
¿Cómo negociar la política migratoria de México?: prácticas, logros, errores y opciones
Authors:   Facultad Latinoamericana de Ciencias Sociales México, Casillas R. Rodolfo
Published: August 2021

Desde una perspectiva regional y de realpolitik, los procesos migratorios que ocurren y transitan por México deben ser vistos desde una articulación política de economía, seguridad y migración con Estados Unidos. En este texto se analiza cómo ha ocurrido dicho proceso, cuáles son las expectativas mexicanas y estadounidenses, qué logros ha habido y cuáles son los costos y errores estratégicos del lado mexicano. Se concluye con una propuesta concreta de cómo esa relación desventajosa para México con su contraparte estadounidense puede ser modificada revalorando las cartas en juego y los términos en que se realizan las negociaciones.
ASSESSMENT OF THE EFFICIENCY OF THE STAFF MOTIVATION SYSTEM IN THE ORGANIZATION
Authors: Zadorova T.V. , Shigilcheva S.A. , Bogatova T.A.
Published: August 2021

The article presents the results of assessing the system of motivation and incentives for the work of the organization's personnel. The authors analyzed the indicators of labor and wages of the joint-stock company "Cheboksary River Port", as well as suggested ways to increase the motivation of workers of the object of research in modern conditions. The coefficient of efficiency of the incentive system for the personnel of the enterprise indicates a shortage of incentive payments. Its value is typical for a system when moral encouragement is sufficient, however, on the other hand, it is regarded as a marker of tension in the near future. The motivation mechanism is based on the idea of motivation and patterns of behavior of employees in the organization, therefore the conclusion to which the authors are inclined is the following: improvement of the system of motivation and stimulation of the work of the analyzed organization can be achieved by periodically studying the needs of employees through questioning and making changes to the incentive policy, linking the labor potential of employees with the bonus system, introducing the principle of operational bonuses, expanding the list of non-material incentives for employees. In addition, in order to draw up a motivational portrait of employees, it is necessary to conduct a survey aimed at studying their needs at the selection stage in the hiring process.
Effect of Roundup Herbicide on Digestion in Fish (Review)
Authors: Голованова И.Л.
Published: August 2021

Дан краткий обзор современной литературы по влиянию Раундапа – неселективного глифосатсодержащего гербицида широкого спектра действия на физиолого-биохимические показатели рыб. Особое внимание уделено воздействию гербицида в условиях in vivo и in vitro на активность пищеварительных ферментов рыб, обитающих в водохранилищах Верхней Волги. Продемонстрирована зависимость силы и направленности эффектов от вида, возраста и типа питания рыб, концентрации гербицида и условий эксперимента, а также действия ряда антропогенных факторов.

A brief overview of the modern literature on the influence of Roundup – a non-selective glyphosate-containing herbicide of a wide spectrum on the physiological and biochemical indicators of fish is given. Particular attention is paid to the effect of herbicide in vivo and in vitro on the activity of digestive ferments of fish living in reservoirs of the Upper Volga. The dependence of the strength and orientation of the effects on the species, age and type of nutrition of fish, the concentration of the herbicide and the experimental conditions, as well as the actions of a number of anthropogenic factors has been demonstrated.
Statistical Analysis of Environmental Costs and Assessment of their Effectiveness in the Region (Using the Example of the Yaroslavl Region)
Authors: Жолудева В В.
Published: August 2021

Проведён статистический анализ показателей, характеризующих экологическую ситуацию в Ярославской области, и анализ динамики изменения состояния окружающей среды в зависимости от изменения затрат на её охрану. В качестве основных рассматривались показатели, охватывающие все компоненты окружающей среды: атмосфера; водные ресурсы; почвенный слой; здоровье людей, проживающих на территории Ярославской области. В качестве экономических показателей были рассмотрены текущие затраты на охрану окружающей среды и инвестиции, направленные на её охрану в регионе. Оценка эффективности затрат на охрану окружающей среды рассчитывалась на основе интегральных индексов. Результаты исследования показали, что в Ярославской области состояние окружающей среды практически не зависит от затрат на её охрану и инвестиций. Это можно объяснить тем, что экологическая обстановка стабильна, а, следовательно, затраты необходимо оптимизировать, учитывая их долгосрочное влияние. Возможна и другая причина: затраты и инвестиции направлены не на самые острые проблемы, что и снижает их эффективность. Знание важнейших факторов, влияющих на состояние окружающей среды региона, позволит принять соответствующие хозяйственные решения, которые скажутся в ближайшем будущем

A statistical analysis of indicators characterizing the ecological situation in the Yaroslavl region and an analysis of the dynamics of changes in the state of the environment depending on the change in the costs of its protection was carried out. Indicators covering all components of the environment: atmosphere, water resources, soil layer, health of people living in the Yaroslavl region was considered as the main ones. As economic indicators, current costs of environmental protection and investments aimed at its protection in the region were considered. The environmental cost effectiveness assessment was based on integral indices. The results of the research showed that the state of the environment in the Yaroslavl region is practically independent of the costs of its protection and investment. This can be explained by the fact that the environmental situation is stable, and therefore the costs need to be optimized, taking into account their long-term impact. Another reason is also possible: costs and investments are not aimed at the most acute problems, which reduces their effectiveness. Knowledge of the most important factors affecting the state of the environment of the region will make it possible to make appropriate economic decisions that will affect in the near future.
Numerical Simulation Mode of Spot Contact Welding Processes
Authors: Угловский А.С. , Соцкая И.М. , Шешунова Е.В.
Published: August 2021

Цель рассмотрения численного метода заключалась в получении подробных данных, позволяющих оценить проведение сварочного процесса: изменение объёма сварного шва, радиуса сварного шва, радиуса зоны термического влияния. При проведении моделирования авторами выведены зависимости параметров точечной сварки низкоуглеродистой стали толщиной до 3,2 мм. Данные зависимости будут определять качество сварных швов. Соответствующее сочетание параметров точечной сварки обеспечит прочное соединение и хорошее качество сварки.

The purpose of the numerical method consideration was to obtain detailed data allowing evaluating the performance of the welding process: changing the volume of the weld, the radius of the weld, the radius of the weld-affected zone. During the simulation the authors have derived dependencies of the parameters of spot welding of low-carbon steel up to 3.2 mm thick. These dependencies will determine the quality of the welds. The correct combination of spot welding parameters will ensure a firm joint and good welding quality.
Em tempos de ensino remoto: praticando Matemática no Google Forms a partir de um boletim epidemiológico sobre o Coronavírus-Covid-19
Authors: Caetano Marcos Antônio Guedes
Published: August 2021

Este trabalho visa tecer considerações sobre o desenvolvimento de uma atividade matemática remota junto aos alunos do 6º ano da Escola Municipal Claudionora Nobre de Melo, situada no município de Caravelas. A condução dessa prática pedagógica teve como ponto de partida um boletim epidemiológico sobre o Coronavírus-Covid-19 referente a esta localidade do Extremo Sul da Bahia. Tal estudo se justifica pelo fato de ser uma estratégia que possibilita o diálogo entre duas vertentes: o momento pandêmico atual e o conhecimento matemático, favorecendo assim o aprendizado dos conteúdos matemáticos. Nessa perspectiva, lança mão da metodologia de resolução de problemas a partir de situações matematizadas e com base nas reflexões freireanas, que propõe viabilizar a convivência com a Matemática, criando condições para que esse conhecimento seja construído. Com este direcionamento, apoia-se também na BNCC que retrata esse aspecto metodológico como um instrumento privilegiado no processo de ensino e aprendizagem do ensino fundamental. Para tanto, recorre ao Google Forms como recurso pedagógico e tecnológico, subsidiando o presente estudo e como forma de despertar o interesse do aluno. Tudo indica que fomentar ações de natureza interdisciplinar diversifica, dinamiza e enriquece o binômio ensinar e aprender de Matemática, o que de certo modo também estabelece relações entre o objeto matemático e acontecimentos reais vinculados às vivências dos alunos, como as questões de âmbito social, voltadas à área de saúde. São contextos viáveis e significativos de construção do exercício matemático.
Analysis and modified function projective synchronization of integer and fractional-order autonomous Morse jerk oscillator
Authors: ERİC DONALD Dongmo , AİNAMON Cyrille , KEMNANG TSAFACK Alex Stéphane , SAEED Nasr , KAMDOUM Victor , KİNGNİ Sifeu T.
Published: August 2021

Dynamical analysis and modified function projective synchronization (MFPS) of integer and fractional-order Morse jerk oscillator are investigated in this paper. Integer-order Morse jerk oscillator generates periodic behaviors, periodic spiking and two different shapes of chaotic attractors. The periodic spiking and chaotic behaviors obtained during numerical simulations of integer-order Morse jerk oscillator is ascertained by using electronic implementation. The numerical simulations results qualitatively agree with the Orcad-PSpice results. Moreover, MFPS of identical and mismatched chaotic Morse jerk oscillators is numerically investigated. At last, the theoretical investigation of fractional-order Morse jerk oscillator reveals the existence of chaos in Morse jerk oscillator for order greater or equal to 2.85.
Numerical assessment of the performance of different constitutive models used to predict liquefiable soil behavior
Authors: DEMİR Selçuk
Published: August 2021

Liquefaction has caused severe damages to structures such as excessive settlements, tilting, lateral spreading etc., all over the world during many past earthquakes. Hence, the efficient prediction of liquefiable soil behavior is crucial for liquefaction-induced hazard evaluation of existing structures and the design of new structures in seismically active regions. In this study, a series of nonlinear effective stress analyses are carried out using the DeepSoil and OpenSees opensource software with Modified Kondner–Zelasko (MKZ) and Pressure Dependent Multi Yield02 (PDMY02) constitutive models to evaluate their capabilities in terms of predicting liquefiable soil behavior. The performance of the models has been evaluated by comparing the results between the numerical predictions and a centrifuge study from literature in terms of excess pore water pressures, acceleration-time histories, spectral accelerations, lateral displacements and maximum profile responses at specific depths. The results clearly illustrate that the excess pore water pressure predictions from nonlinear analyses are reasonably close to centrifuge measurements, but the accelerations and lateral displacements are slightly different. It is also observed that dissimilarities in the predictions of the numerical simulations are more obvious for OpenSees simulations with respect to DeepSoil ones.
GAMBARAN KEPATUHAN MASYARAKAT DALAM MELAKSANAKAN PROTOKOL KESEHATAN COVID-19
Authors: Istiarini Chatarina Hatri
Published: August 2021

Latar Belakang: Coronavirus Disease 2019 atau Covid-19 adalah penyakit baru yang dapat menyebabkan gangguan pernapasan dan radang paru (Razi et., al, 2020). Data Covid-19 di dunia pada 7 Desember 2020, terdapat 66.243.918 kasus terkonfirmasi (WHO, 2020). Kasus di Indonesia pada 7 Desember 2020 mencapai 581.550 (Kemenkes RI, 2020). Data terbaru populasi Daerah Istimewa Yogyakarta (DIY) memiliki 2.520.753 orang usia produktif yaitu usia 15-64 tahun (Disduk DIY, 2020). Berdasarkan data dari situs Pemda DIY pada 7 Desember 2020 menunjukkan bahwa, masyarakat tidak mematuhi protokol kesehatan sehingga penyebaran virus semakin meluas (Pemda DIY, 2020). Tujuan: Mengetahui gambaran kepatuhan masyarakat dalam melaksanakan protokol kesehatan Covid-19. Metode: Desain penelitian menggunakan deskriptif kuantitatif. Pengambilan sampel menggunakan Cluster sampling dan stratified random sampling yang didapatkan 400 responden dengan alat ukur kuisioner yang akan dianalisis uji univariate. Hasil: Gambaran tingkat kepatuhan masyarakat dalam melaksanakan protokol kesehatan Covid-19 menunjukan kepatuhan perilaku protokol kesehatan di Daerah Istimewa Yogyakarta, kepatuhan penggunaan masker sebanyak 97%, kepatuhan mencuci tangan 96%, kepatuhan menjaga jarak 92%, meningkatkan daya tahan tubuh sebanyak 77% dan masyarakat yang patuh protokol kesehatan secara umum 96%. Kesimpulan: Penelitian kepatuhan protokol kesehatan dengan indikator 4M diperoleh hasil 96% responden patuh terhadap protokol kesehatan Covid-19. Saran: untuk meneliti kualitatif atau kuantitatif mengenai indikator 4M yang berfokus pada meningkatkan daya tahan tubuh.
Category-Oriented Self-Learning Graph Embedding for Efficient Image Compact Representation
Authors: Hu Liangchen
Published: August 2021

As one of the ways to acquire efficient image compact representation, graph embedding (GE) based manifold learning has been widely developed over the last two decades. Good graph embedding depends on the construction of graphs concerning intra-class compactness and inter-class separability, which are crucial indicators of the effectiveness of a model in generating discriminative features. Unsupervised approaches are intended to reveal the data structure information from a local or global perspective, but the resulting compact representation often has poorly inter-class margins due to the lack of label information. Moreover, supervised techniques only consider enhancing the adjacency affinity within the class but excluding the affinity of different classes, which results in the inability to fully capture the marginal structure between distributions of different classes. To overcome these issues, we propose a learning framework that implements Category-Oriented Self-Learning Graph Embedding (COSLGE), in which we achieve a flexible low-dimensional compact representation by imposing an adaptive graph learning process across the entire data while examining the inter-class separability of low-dimensional embedding by jointly learning a linear classifier. Besides, our framework can easily be extended to the semi-supervised situation. Extensive experiments on several widely-used benchmark databases demonstrate the effectiveness of the proposed method comparing with some state-of-the-art approaches.
Computing Effective Hamiltonians of Coupled Electromagnetic Systems
Authors: Liao Shaolin , Ou Lu
Published: August 2021

In this paper, we present an efficient procedure to compute the effective Hamiltonian matrix of a coupled electromagnetic system consisting of subsystems that are coupled to a discrete number of channels through couplers. Each subsystem is described by its own effective non-Hermitian Hamiltonian and the corresponding Quasi-normal Modes (QNMs), while the coupler connecting the subsystems and the channels is described by the scattering matrix, which is equivalent to the transfer matrix, in terms of port vectors defined for the coupler. Due to the constraints imposed by the QNMs of the subsystems and the wave dynamics of the channels, as well as boundary condition constraints, constraint-free port vectors need to be chosen efficiently and they follow two rules: 1) port vectors forming loops with couplers; 2) port vectors of couplers with most constraints or with less freedom. With the constraint-free port vectors chosen, the effective Hamiltonian matrix of the coupled electromagnetic system can be obtained by imposing the boundary condition constraints. After the effective Hamiltonian is obtained, the eigenvalues, eigenvectors and dispersion relation of the coupled electromagnetic system, as well as other quantities such as the reflection and transmission, can be calculated. A 2D interstitial square coupled MRRs array is used as an example to demonstrate the computational procedure. The computation of the effective Hamiltonian matrix of a coupled electromagnetic system has many potential applications such as MRRs array, coupled Parity-Time Non-Hermitian electromagnetic system, as well as the dispersion relation of finite and infinite arrays.
Síndrome de Down e patologias associadas: uma revisão narrativa da literatura
Authors: Alvarez Tatiana Batista Sanchez , Marques Dionasson Altivo
Published: August 2021

Objetivo: identificar por meio de uma revisão narrativa de literatura as patologias mais recorrentes em indivíduos com Síndrome de Down. Método: trata-se de uma revisão narrativa. Realizou-se um levantamento da literatura no Portal Pubmed e nas bases de dados de publicações científicas indexadas: Scientific Eletronic Library Online (Scielo), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), Base de Dados de Enfermagem (BDENF) e Cumulative Index to Nursing and Allied Health Literature (CINAHL) e Portal PubMed, usando os descritores “Down's syndrome”, “Pathologies”, “Trisomy 21”, “Intellectual Disability”, “Clinical manifestations”. Resultados: foram encontrados 696 artigos, dos quais 24 foram analisados na íntegra, destes, foram selecionados 9 artigos que compuseram a amostra desta revisão. A maioria dos estudos selecionados mensurou as características fenotípicas peculiares nos indivíduos com essa anomalia, a saber: olhos oblíquos, orelhas baixas, braquidactilia, hipotonia, baixa estatura, braquicefalia, fissuras oblíquas na pálpebra, epicanto, manchas de Brushfield na íris, dentre outras. Conclusão: torna-se necessária uma atenção e acompanhamento regular dos profissionais de saúde acerca das patologias malignas, doenças autoimunes e inflamatórias que acometem as pessoas com SD.
A Suggestion for Hip Replacement Surgery: Probabilistic Surveillance
Authors: Hekimoğlu Can Hüseyin , Batır Esen , Yıldırım Gözel Emine , Alp Meşe Emine
Published: August 2021

Objective: Surgical site infection (SSI) surveillance is time-consuming and hard. Identifying high-risk patients and focusing on these patients will be cost and time effective. This study aims to develop a model to identify high-risk patients for the development of SSI after hip replacement surgery and to estimate the utility of the model.

Methods: Logistic regression model was created to determine the risk of SSI development using the National Health Service Associated Surveillance Network (USHİİSA) data. The stability of the model was tested using the Bootstrap resampling method.  The individual probability of developing SSI was determined for each patient by using the model. The threshold probability to be used in distinguishing high-risk patients was found 1.2% by ROC analysis. For hospitals with different SSI rates and surveillance sensitivity, the utility of the model has been estimated by various parameters.

Results: Female gender (OR:1.52; 95% CI:1.22-1.88), being over 65 years of age (OR:2.06; 95% CI:1.63-2.62), procedure duration longer than 75th percentile (OR:1.32; 95% CI:1.07-1.63), ASA score over 3 (OR:2.10; 95% CI:1.48-2.99), and surgery performed in a hospital other than a private hospital (p<0.001) were found to be independent risk factors for the development of SSI. When focusing on high-risk patients, as the rate of SSI of a hospital increases, the number of patients that need to be focused on detecting one more SSI decreased, and the number of additional SSIs increased. As the surveillance sensitivity of the hospitals decreases, the new rate obtained differs more from the old rate.

Conclusions: Focusing on high-risk patients identified using the model caused to eliminate approximately half of the patients, thus saving labor and time. Using this model can be particularly beneficial for hospitals with a high SSI burden and low surveillance capacity. The model can be integrated into the national surveillance system so that high-risk patients can be prioritized. Modeling may be considered for the other surgeries.
A Rare Cause of Meningitis : Pseudomonas stutzeri
Authors: Karamanlıoğlu Dilek , Öztürk Erek , Aysert-Yıldız Pınar
Published: August 2021

Pseudomonas stutzeri (P. stutzeri) is a gram-negative, aerobic and saprophytic microorganism which found in soil, water and hospital environments. Isolation of bacteria from clinical samples usually refers to colonization rather than infection. However, it rarely causes serious infections. This report presents a 33-year-old male immunocompetent patient who developed P. stutzeri meningitis after cerebrospinal fluid (CSF) fistula operation. Although our case was considered mainly a hospital-acquired infection, the fact that the patient was a recycling employee raises suspicion about the source of the infectious agent. In the literature, four cases of meningitis caused by this microorganism have been identified. When these cases were examined, it was seen that three of them had underlying diseases and the other one had no comorbid disease, but he was older than 65 years. Although our patient is young and has no underlying disease or immunosuppression, the development of meningitis with P. stutzeri, a rare infectious agent, is remarkable. In conclusion, it should be kept in mind that rare agents such as P. stutzeri may be the cause of hospital-acquired meningitis.