bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of Synchro-Phasor Measurement Unit in Smart Grid Including Renewable Energy
Authors: Mahboubi Meriem , Ouadi Abderrahmane
Published: September 2021

Renewable energy is one of the most abundant energies in our planet. In order to satisfy the world demand of electrical energy, solar and wind energy may be used. Identical to all other types of power generation plants, the integration of these renewable energy sources in smart power grid has an impact on its operation. Thus, when the electrical power is injected into the power grid by these energy sources, the system electrical parameters must be well monitored for synchronization purpose. This can be accomplished with the aid of synchro-phasors measurement units. The phase angle of the utility is a critical parameter for the operation of power devices feeding power into the grid such as PV and wind energy inverters. There are many techniques to obtain the grid phase angle such as the zero-crossing detection and the orthogonal phase locked loop. This research work discusses the use of PMUs (Phasor Measurement Unit) for providing this important parameter to system synchronization in the case of high penetration of solar or wind energy in the power grid.
Application of Data Mining in Smart Grid Technology
Authors: Chhaya Lipi , Sharma Paawan , Kumar Adesh , Bhagwatikar Govind
Published: September 2021

Smart grid technology is a radical approach for improvisation in existing power grid. Some of the significant features of smart grid technology are bidirectional communication, AMI, SCADA, renewable integration, active consumer participation, distribution automation, and complete management of entire grid through wireless communication standards and technologies. Management of complex, hierarchical, and heterogeneous smart grid infrastructure requires data collection, storage, processing, analysis, retrieval, and communication for self-healing and complete automation. Data mining techniques can be an effective solution for smart grid operation and management. Data mining is a computational process for data analysis. Data scrutiny is unavoidable for unambiguous knowledge discovery as well as decision making practices. Data mining is inevitable for analysis of various statistics associated with power generation, distribution automation, data communications, billing, consumer participation, and fault diagnosis in smart power grid.
Smart Metering and Pricing Policy in Smart Grids
Authors: Dekhandji Fatma Zohra
Published: September 2021

Pricing policy is one of the tools allowing the involvement of customers in the balance between the supply and the demand in smart grids. The present chapter aims at presenting the smart metering action including the bidirectional measurement of energy for smart houses equipped with renewable energies as well as the way a smart meter communicates data at the required timing to and from the control center. A typical bill establishment explaining how the net billing is produced along with a discussion about different pricing policies that the utility may adopt to reduce the peak load demand is also presented. The work is concluded by a typical simulation of a smart city modeled in LABVIEW software.
Synchronized Operation of Grid Power, Solar Power, and Battery for Smart Energy Management
Authors: Kumar Pawan , Thanki Dip V.
Published: September 2021

This chapter gives details of solar photovoltaic, starting from its general pros and cons. It covers the basics of site evaluation when installing a solar powered plant and various ways to overcome the uncertainties in the predicted output of the solar arrays. The efficiency of the plant can be improved with the help of maximum power point tracker (MPPT), which works on algorithms based on perturb and observe, incremental conductance, constant voltage, etc. The output of the solar PV arrays can be utilized more effectively by integrating it with grid to supply ac loads. This integration requires a power conditioning system (PCS), enabling smooth operation. Continuity of supply can be maintained by having a battery backup, for the time when both grid and solar array fail to meet the load demand. Such a system can have wide range of applications and has the potential to meet the energy demand.
Research on Application of Wireless Bridge Technology in the Smart Grid
Authors: Ying Zou , Si-ning Wang , Chang-yu Du , Yuan-kun Jiang
Published: September 2021

The construction of smart grid, in the meet of communication network core layer must have the strong bearing capacity and the strong network frame, also requires the access layer have the wide variety and flexible edge access ability. In this article, in accordance with the technical features of the smart grid communication network, combined with the Global Energy Interconnection to the requirement of all kinds of communication. The wireless bridge system based on the IEEE 802.11 series protocol as flexible edge access is applied to the smart grid communications, to forward the power wireless bridge structure design and the bridge monitoring management platform design and safety protection design. The use of a wireless bridge will increase the transmission quality of signal, distance and the safety of the transmission. In this article, the wireless bridge in the application of the smart grid electric power communication network has a role in promoting, has a guiding significance to the construction of the smart grid communication.
Monitoring, Predicting, and Optimizing Energy Consumptions
Authors: Cardoso Pedro J. S. , Monteiro Jânio , Cabrita Cristiano , Semião Jorge , Cruz Dario Medina , Pinto Nelson , Ramos Célia M.Q. , Oliveira Luís M. R. , Rodrigues João M. F.
Published: September 2021

Energy consumption and, consequently, the associated costs (e.g., environmental and monetary) concern most individuals, companies, and institutions. Platforms for the monitoring, predicting, and optimizing energy consumption are an important asset that can contribute to the awareness about the ongoing usage levels, but also to an effective reduction of these levels. A solution is to leave the decisions to smart system, supported for instance in machine learning and optimization algorithms. This chapter involves those aspects and the related fields with emphasis in the prediction of energy consumption to optimize its usage policies.
Measuring Mobile Experience in Chinese Language Learning
Authors: Ji Chenxiang Elaine
Published: September 2021

After mapping dimensions and directions of experience in applying mobile technologies to Chinese language learning, another key task is to measure different levels of experience in terms of its dimensions and directions of learners' experience in leveraging mobile technologies, mobile learning apps in particular. Equipped with the proposed 6E-r framework of mobile experience, this chapter provides indicators and criteria in measuring mobile learning experience in applying mobile technologies to Chinese language learning around the world. This chapter also developed an online questionnaire for future research reference in order to successfully gauge the different levels of experience in applying mobile technologies to Chinese language learning. Ultimately, this chapter attempted to resolve the research question, that is, how mobile learning experience is enhanced by narrowing the gap between the normative experience and the empirical experience.
Managing User Integration
Authors: Eicher Cornelia , Klebbe Robert
Published: September 2021

The importance of robotics and assistive technologies for healthcare is increasing. For their introduction into practical application, the continuous integration of the user perspective is crucial to ensure acceptance and usability. This can be achieved by the user-centered design approach. In an earlier publication, several problems with its functional implementation within research and development (R&D) projects were pointed out. This chapter discusses possible solutions to promote an effective integration of the user perspective in R&D projects based on six interviews with experts from Germany. The results can be summarized in three main requirements: first, the generation of a common understanding of the target group; second, a scientific research approach considering the context of technology usage; third, projectification, with a focus on efficient resource planning, the development of generic technologies, and technology evaluations with the user group. Leaders of innovative projects can benefit from implementing these strategies in the development process.
Ethical Considerations in Prosthetics and Orthotics
Authors: Attard Jesmond
Published: September 2021

This chapter introduces the field of advanced technology within the orthotics and prosthetics profession, a healthcare profession that combines technology and engineering science with medical and health science to produce medical devices (orthoses and prostheses) to treat medical conditions that cause physical dysfunction. The chapter sets the background to the ethical dilemmas that are encountered within the field, which technologically advanced devices cause such dilemmas and why, and then discusses the ethical dilemmas as encountered by the three stakeholders within the profession, namely the manufacturers/innovators, the prosthetic and orthotic practitioners, and the users of the devices themselves, the patients. In conclusion, the chapter looks at some solutions and recommendations to overcome or at least reduce these dilemmas.
Reliability Engineering Techniques Applied to the Human Failure Analysis Process
Authors: González-Prida Vicente , Parra Carlos , Crespo Adolfo , Kristjanpoller Fredy A. , Viveros Gunckel Pablo
Published: September 2021

Human reliability and human error are factors that are present in all areas: industrial, economic, social, etc. All these areas require to a greater or lesser extent a physical and mental effort to satisfy their own needs, those of others, or established requirements that, depending on the circumstances and the nature of the person, can lead to errors. Certainly, it is not possible to find a single human reliability method that can meet all the expectations and technical demands related to the analysis of human errors. However, it is important to note that the orientation of all human reliability methods is focused on the study and analysis of the risk factor (frequency by consequences). In other words, as can be observed throughout this chapter, all human reliability methodologies seek to help us reduce the uncertainty in the process of evaluating the frequencies of unforeseen events (human errors) and the consequences that such human errors can bring to safety, the environment, and the operations within the framework of an industrial production process.
A Model to Improve Security Questions Through Individualized Assistance
Authors: Mangle Andrew , Patel Sandip , Bapna Sanjay , Zu XingXing , Gurzick David
Published: September 2021

Security questions are considered a viable alternative for secondary and supplementary authentication. Security questions are susceptible to three types of attacks: blind (brute force), focused guess (statistical), and observation (research/personal). This research outlines how informing users of potential security threats through a security meter may improve security with minimal impact on usability and trust. A security-question authentication model is proposed that builds on the strengths of security question responses, chiefly their ease of recall and higher entropy, while mitigating the core weaknesses of the model, which are the lack of uniform answers and public accessibility to answers. Users that were made aware of the entropy of their responses were more likely to provide stronger responses to the security questions without affecting the repeatability of the responses to the questions but negatively impacting the memorability.
Conventional and Evolutionary Order Reduction Techniques for Complex Systems
Authors: Kumari Abha , Vishwakarma C. B.
Published: September 2021

Order reduction of the large-scale linear dynamic systems (LSLDSs) using stability equation technique mixed with the conventional and evolutionary techniques is presented in the paper. The reduced system (RS) is obtained by mixing the advantages of the two methods. For the conventional technique, the numerator of the RS is achieved by using the Pade approximations and improved Pade approximations, whereas the denominator is obtained by the stability equation technique (SET). For the evolutionary technique, numerator of the RS is obtained by minimizing the integral square error (ISE) between transient responses of the original and the RS using the genetic algorithm (GA), and the denominator is obtained by the stability equation method. The proposed RS retains almost all the essential properties of the original system (OS). The viability of the proposed technique is proved by comparing its time, frequency responses, time domain specifications, and ISE with the new and popular methods available in the literature.
Intelligent and Adaptive Web Page Recommender System
Authors: Rani Geeta , Dhaka Vijaypal Singh , Sonam  , Pandey Upasana , Tiwari Pradeep Kumar
Published: September 2021

In this manuscript, an intelligent and adaptive web page recommender system is proposed that provides personalized, global, and group mode of recommendations. The authors enhance the utility of a trie node for storing relevant web access statistics. The trie node enables dynamic clustering of users based on their evolving browsing patterns and allows a user to belong to multiple groups at each navigation step. The system takes cues from the field of crowd psychology to augment two parameters for modeling group behavior: uniformity and recommendation strength. The system continuously tracks the user's responses in order to adaptively switch between different recommendation-criteria in the group and personalized modes. The experimental results illustrate that the system achieved the maximum F1 measure of 83.28% on CTI dataset, which is a significant improvement over the 70% F1 measure reported by automatic clustering-based genetic algorithm, the prior web recommender system.
SinGAN-Based Asteroid Surface Image Generation
Authors: Guo Yundong , Pan Jeng-Shyang , Qiu Chengbo , Xie Fang , Luo Hao , Shang Huiqiang , Liu Zhenyu , Tan Jianrong
Published: September 2021

While it is risky considering spacecraft constraints and unknown environment on asteroid, surface sampling is an important technique for asteroid exploration. One of the sample return missions is to seek an optimal landing site, which may be in hazardous terrain. Since autonomous landing is particularly challenging, it is necessary to simulate the effectiveness of this process and prove the onboard optical hazard avoidance is robust to various uncertainties. This paper aims to generate realistic surface images of asteroids for simulations of asteroid exploration. A SinGAN-based method is proposed, which only needs a single input image for training a pyramid of multi-scale patch generators. Various images with high fidelity can be generated, and manipulations such as shape variation, illumination direction variation, super resolution generation are well achieved. The method's applicability is validated by extensive experimental results and evaluations. At last, the proposed method has been used to help set up a test environment for landing site selection simulation.
A Cross-Continent Analysis of the Invariance of Product Information in Cross-Border Electronic Commerce
Authors: Zhu Wenlong , Mou Jian , Cohen Jason F.
Published: September 2021

Cross-border electronic-commerce (CBEC) is growing. However, due to differences in culture, habits, history and language among other factors, consumers in different regions may have different perception towards the same product information on CBEC platforms, which may lead to differences in their cognition of the product with implications for purchase intentions. Presently, little research has attempted to understand whether there are such differences between global consumers through the examination of measurement invariance (MI) in CBEC environments. By using multiple-group confirmatory factor analysis (MG-CFA), this study explored the invariance of two product information cognitions on CBEC platforms, namely product description and product awareness, among consumers in North America, Europe, Latin America and Oceania. Data was collected from users of a popular CBEC platform in China. We find no significant differences in understandings and levels of awareness of product information across the four groups of consumers.
Cost Optimization for Dynamic Content Delivery in Cloud-Based Content Delivery Network
Authors: Banu S. Sajitha , Balasundaram S. R.
Published: September 2021

Cloud computing is a technology to store, process, and manage the data virtually over remote data centers through the internet. Due to the rapid growth of cloud services, the content distribution network broadly uses them to deliver data all over the globe. Due to the rapid generation of the data, delivering on the network is a challenging problem. As the number of replicas increases, the storage cost will be increased. This is a major issue in cloud-based content delivery networks. To overcome this issue, the authors developed a new model for cloud-based CDN with cost optimization algorithm STLM (storage, traffic, latency, cost minimization) to reduce the number of replicas in order to optimize the cost of storage and cost of content delivery. The authors have compared their proposed STLM algorithm with other existing algorithms. They adopt simulation with YouTube e-learning data retrieval. The proposed algorithm is used to place the contents in an efficient way to the geologically dispersed proxy servers in the cloud to encounter quality of service (QoS) and quality of experience (QoE).
Line Segment-Based Clustering Approach With Self-Organizing Maps
Authors: Chamundeswari G. , Varma G. P. S. , Satyanarayana C.
Published: September 2021

Clustering techniques are used widely in computer vision and pattern recognition. The clustering techniques are found to be efficient with the feature vector of the input image. So, the present paper uses an approach for evaluating the feature vector by using Hough transformation. With the Hough transformation, the present paper mapped the points to line segment. The line features are considered as the feature vector and are given to the neural network for performing clustering. The present paper uses self-organizing map (SOM) neural network for performing the clustering process. The proposed method is evaluated with various leaf images, and the evaluated performance measures show the efficiency of the proposed method.
A Game Theoretic Mechanism for Management of IoT Resources in a Smart City
Authors: Matta Priya , Pant Bhaskar , Sharma Sachin
Published: September 2021

IoT is emerging in all the dimensions of the physical world, and smart city is one of the most promising among them. This article focuses on the efficient utilisation of resources in an IoT system. IoT resources have been identified and classified in context to a smart city. The number and type of resources may grow dynamically in a smart city, and user's demand may also vary dynamically. Therefore, to maximise the throughput of the system, the resources must be deployed, managed, and used efficiently. This manuscript has identified the concept, role, and composition of the resource manager with respect to an IoT system and presents a game theoretic approach to manage the resources from provider point of view. Using a complete and dynamic use case, including the multiple resources, it illustrates the usability of the proposed approach. The major focus is on the efficient use of IoT resources in a smart city.
Abstract Book of the SOHO 3rd Italian Conference | 27–30 September 2021
Authors: Cerchione Claudio , Martinelli Giovanni , Kantarjian Hagop
Published: September 2021

Bruton’s tyrosine kinase (BTK) inhibition is an emerging standard of care for Waldenström macroglobulinemia [...]
Clinical Characteristics and Risk Factors of Liver Dysfunction in COVID-19 Patients
Authors: Jiang Xiaofang , Zhang Jiahao , Yang Cheng , Xie Qin , Xiao Guanfa , Wang Fengqin , Shen Sanying , Su Lianjiu , Peng Zhiyong
Published: September 2021

Abstract

Background:

COVID-19 outbreak has spread around the world. Liver dysfunction (LD) was related with high mortality in COVID-19.

Methods:

Retrospective, single-center study case series of 425 consecutive hospitalized COVID-19 patients were enrolled. Demographic, clinical, laboratory, and treatment data were collected.

Results:

A total of 425 patients were included in this study, 145 of whom had LD. The overall mortality rate was 8.9%, while 17.9% in the LD group and 4.3% in the nonliver dysfunction (NLD) group. Age, sex, and hypertension were the independent risk factors of LD. LD was an independent risk factor for incidence of severe illness, acute respiratory distress syndrome, and death. The survival rate of patients in LD group was lower than that in NLD group (P < 0.001). A similar trend was observed by the multivariate regression analysis (adjusted hazard ratio, 3.52; 95% confidence interval [CI], 1.69-7.33; P = 0.001). Angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers had effect to reduce LD (odds ratio of 0.48 [95% CI, 0.232-0.989; P = 0.045]).

Conclusions:

LD is one of the main features of hospitalized patients of COVID-19, with a worse prognosis. Patients of COVID-19 with LD on admission should be more cautions.
Erratum to “On groups with $S^2$ Bowditch boundary”
Authors: Tshishiku Bena , Walsh Genevieve
Published: September 2021

The purpose of this erratum is to correct the proof of Lemma 3.1 in [Groups Geom. Dyn. 14 (2020), no. 3, 791–811].
Editorial Comment
Authors: Nalule Victoria , Nakhle Carole
Published: September 2021

No Abstract.
Equator Principles 4-Revised Climate Change Risk: What Does This Mean For Project Financing in Africa Amidst The Ongoing Energy Transition?
Authors: Sheehama Ailly P.G.
Published: September 2021

Since its inception, the Equator Principles Association introduced a risk management framework in response to the ever-changing environmental and social risk in projects. The Equator Principles (EPs) result from minimum standards for risk management to stop the race to the bottom. In June 2013, EP3 was introduced, and climate change requirements were added to address the 'transition towards an ethical and low-carbon economy.' This eventually led to the newly revised Equator Principles 4 (EP4s), 'Climate Change Risk Assessment' (transition risk), in July 2020. This article analyses the effect of the transition risk of EP4 to determine whether this new addition will support or inhibit oil and gas project financing in Africa amidst the ongoing energy transition by questioning the underlying assumptions upon which the policy design was developed.

The article concluded that consideration for project financing in Africa could be expected to address the energy needs in Africa while at the same time essentially pushing governments to take into consideration climate change by putting in place processes, policies, and systems to manage these risks.' Furthermore, the transition risks definition and implementing standards of EP4 are broadly worded, allowing adapting the principles to a wide range of regimes that positively contribute to these domains. This essentially enables consideration of ethical transition and provides for coordination and coherence across different policy domains.
Towards an Eco-decolonial Museology: A critical realist analysis of the crises of South African museums
Authors: Jeffery Tom
Published: September 2021

South African museums face multivalent, simultaneous crises. The MELD dialectical framework of critical realist philosophy can be used to explore potential for a deep reimagining of museum theory and practice that may generate a new, relational mode better able than persistent dualist modes to respond to complex, emergent crises. This has been conceived by the author (Jeffery, 2021) as an ecological-decolonial, or eco-decolonial, mode of museology, and is further developed in the present analysis.

At 1M, the MELD analysis surfaces the implicit neoliberal ontology of South African museum work and the emergent paradox of ‘emancipatory neoliberalism’. This paradox is generative of a number of constraints on practice and agency, including commodification of heritage, a restrictive form of official memory, and quantitative management practice. These limit potential for museums to respond to complex crises that require relational capabilities. 

2E explores the potential negation of these constraints. To disrupt the principle of collection as the grounding ontological activity of museum practice may disrupt the implicit neoliberal ontology. This may contribute to emergent, sophisticated socialecological trends in museum practice, both in South Africa and internationally.

At 3L, a dialectical view on the concept of cultural landscape offers a relational frame for an eco-decolonial museum practice that may better respond to the crises faced by museums. The practical implications of the eco-decolonial approach are considered at 4D.

Keywords: museum practice, critical realism, ontology, eco-decolonial, collection, cultural landscape
ThinkPiece: Embracing Love as an Educational Force in the Anthropocene
Authors: Hammond-Todd Michael , Monk David
Published: September 2021

In the past decade, an increasing number of geologists and other scientific researchers have presented evidence that we have entered a new geologic epoch called the Anthropocene. The primary characteristic of the Anthropocene, researchers argue, revolves around the combination of an emerging and measurable sedimentary layer of increasing human artifacts (mostly plastics) in combination with significant and negative transformations within the Earth’s biodiversity and climate systems. In this article, the researchers were interested in exploring how anthropogenic events will likely affect educational systems and institutions through multi-decade environmental audits and educational planning that are more closely linked to addressing the world’s major anthropogenic problems such as climate change and a global loss of biodiversity related to human development and activity. This article concludes by exploring how anthropogenic forces might be redirected as human catalysts for a more positive environmental and geologic legacy.

Keywords: Anthropocene, anthropogenic force, environmental education, educational catalysts, emotion
Prevalence of ideal cardiovascular health in a community-based population – results from the Swiss Longitudinal Cohort Study (SWICOS)
Authors: Schoenenberger Andreas W. , Radovanovic Dragana , Muggli Franco , Suter Paolo M. , Schoenenberger-Berzins Renate , Parati Gianfranco , Bianchetti Mario G. , Gallino Augusto , Erne Paul
Published: September 2021

AIMS OF THE STUDY: The American Heart Association (AHA) developed a concept to measure cardiovascular health in populations. We aimed to analyse participants in the Swiss Longitudinal Cohort Study (SWICOS) according to the AHA concept.
METHODS: We analysed cardiovascular health according to the AHA concept in all 474 participants of the prospective, population-based SWICOS study who were 18 years or older. The AHA concept uses seven health metrics of known cardiovascular risk factors (blood pressure, total cholesterol, blood glucose, smoking, body weight, physical activity and diet), and classifies each health metric according to three levels (ideal, intermediate and poor) using pre-defined cut-offs.
RESULTS: Ideal cardiovascular health for three or more of the seven health metrics was found in 259 participants (54.9%; 95% confidence interval [CI] 50.1–59.4%), but a relevant number of participants (n = 213, 45.1%, 95% CI 40.6–49.7%) showed ideal cardiovascular health for only two or fewer of the seven health metrics. Poor cardiovascular health for three or more of the seven health metrics was found in 40 participants (8.5%; 95% CI 6.1–11.4%); a majority of 432 participants (91.5%; 95% CI 88.6–93.9%) showed a poor level for only two or fewer of the seven health metrics.
CONCLUSIONS: Overall, we found favourable results for cardiovascular health in the population-based SWICOS cohort. Nevertheless, we see the need for further health prevention campaigns given the fact that a relevant proportion of the participants could optimise their cardiovascular health.
Clinical Trial Registration Number: NCT02282748
At the beginning of the development of modern human sciences and studies on "racial" diversity on the Polish lands
Authors: Nowak Joanna
Published: September 2021

The article analyses the earliest period of the shaping modern human sciences, studies on human nature, the origins of humans, and physical and cultural diversity of humans in Poland.
This process, including several separate stages, began under the influence of the ideas spread by the European Enlightenment and reflected the development of natural sciences that brought a deeper interest in humans, seen from a new perspective, free from religious determinism.
Pioneering searches for a secular approach combined creationism and biblical tradition with a rational attitude based on achievements in natural history, linguistics, philosophy, history, and biblical critique.
In the next stage, natural history constituted a distinct science with a precise scope of research that included, except mineralogy and botany, also zoology as well as human sciences perceived from a biological perspective. First definitions of anthropology described it as a science only emerging from natural history, with the aim to study both physical and moral aspects of humans.
After 1831, human sciences experienced a different situation in various Polish research centers that finally ceased to exist, including Vilnius University, the leader in research in natural history. Under the influence of Romantic ideas, a view was propagated that mental ties were superior to physical ones, spiritual ties to blood kinship, culture was more important than biology.
The emphasis in the study of humans was no longer on natural history, as in the late 18th century and the early 19th century, but on issues connected with mind and culture. The growth of both natural science and the humanities led to the establishment of new directions and areas of research that earlier were covered by natural history and history. Authors came to believe that study of humans requires a combination of various methods and cooperation of scholars representing numerous specialized sciences, however with their specific features preserved. This pioneering period lasted until the early 1860s when anthropology became an academic discipline on the Polish lands (translated by Jacek Serwański).
Mathematics in the interwar period in Central-Eastern Europe. The report on an international research project for the years 2018–2020
Authors: Bečvářová Martina , Domoradzki Stanisław
Published: September 2021

In the article, we will show the main important results of the international research project The impact of WWI on the formation and transformation of the scientific life of the mathematical community. It was supported by the Czech Science Foundation for the years 2018–2020 and brought together ten scientists from five countries (Czech Republic, Poland, Slovakia, USA, and Ukraine) and used the collaboration with historians of mathematics and mathematicians from many other European countries. We will discuss our motivation for the creation of the project, our methodological and professional preparations which profited from the international composition of the team and its longtime collaborations, profound specializations and experiences of the team members, and their deep and long-term studies of many archival sources and basic published works. We will present our choice of the general research trends, our definition of the scientific questions, and our determination of the main topics of our studies. We will describe our most important results (books, articles, visiting lectures, presentations at national and international conferences, seminars and book fairs, exhibitions, popularizations of the results between students, teachers, mathematicians, historians of sciences, and people who love mathematics and its history). We will analyze the new benefit that the project created for the future, for example, good platforms for future international research and cooperation, the discovery of many new interesting research questions, problems, and plans.
Pentecostal Ecumenism: The Legacy of David Du Plessis
Authors: Resane Dr. Kelebogile Thomas
Published: September 2021

This article retrieves the historical ecumenical endeavours of David Du Plessis – the South African who ended being an American citizen and the Assemblies of God credentialed minister. From the Afrikaans community of the Apostolic Faith Mission to the World Pentecostal Fellowship, Du Plessis laboured extensively for the acceptance of the Pentecostal and Charismatic faith into the world ecumenical formations such as World Council of Churches, mainline Protestantism and the Catholic Church. Rejected by his own denomination for ecumenical engagement, he blazed the way for the current Pentecostal ecumenical participation and ecumenism. He built the legacy that has enhanced Pentecostal and Charismatic experience and made it accommodated and understood in different ecumenical formations. The legacy he left behind includes opening doors for dialogues between Pentecostals and other Christian formations, demystifying Pentecostal fears of Christian brotherhood on a global scale, and creating some synergy between Pentecostals and nonPentecostals as the fulfilment of Christ’s desire that ‘They might be One.’ Although not a theologian, Du Plessis paved the way for theology of dialogue as a way of enforcing Christian fraternity especially in impacting communities with the love of Christ.
Potencialidades para Obtenção de Indicação Geográfica na Rota do Vinho do Vale do São Francisco
Authors: Silva André Almeida , Silva Gabriel Francisco da
Published: September 2021

O registro de uma Indicação Geográfica (IG) é concedido a determinado produto ou serviço originário que possui características próprias vindas da sua relação com território. Há uma variedade de produtos protegidos por IG no Brasil, dentre eles os Vinhos e Espumantes, totalizando 08 registros entre os anos de 2002 e 2020. Essas IG estão concentradas na Região Sul, contudo também há potencial em outras localidades. Neste contexto, o objetivo deste artigo é apresentar as potencialidades dos vinhos da região do Vale do Submédio São Francisco para obtenção do selo de IG. Para tanto, foram consultadas as bases Google Acadêmico e Scielo para a coleta de dados sobre IG de vinhos, bem como documento de instituições como o Instituto Nacional da Propriedade Industrial (INPI) e a Empresa Brasileira de Pesquisa Agropecuária (Embrapa). Os resultados apontam a ocorrência de poucas publicações diretamente relacionadas ao objeto de estudo e que essas trazem um maior foco ao registro e regulamento das referidas indicações. Além disso, evidencia-se a originalidade e identidade própria dos vinhos do Vale do Submédio São Francisco, garantidas pelas caracterizadas da região na qual as uvas são produzidas e pelas substâncias presentes nas bebidas, deixando claro o potencial para a obtenção do registro de IG.
CULTURAL LANDSCAPES OF THE NORTHEASTERN PRIAZOV REGION AND THE DON DELTA IN THE EARLY IRON AGE: PROBLEMS OF STUDY AND PROTECTION
Authors: ТОЛОЧКО И.В.
Published: September 2021

Дельты крупных рек с глубокой древности были зонами интенсивных этнокультурных контактов, в эпоху античности – эпицентрами активных цивилизационных процессов. Ярким примером является территория северо-восточного Приазовья, расположенная на стыке обширных природно-географических зон и крупных историко-географических территорий. Проблемы изучения и сохранения ценного природного и историко-культурного территориального комплекса региона являются актуальными на протяжении многих лет. Настоящее исследование посвящено изучению влияния природных и антропогенных факторов на процесс развития ландшафтов северо-восточного Приазовья в раннем железном веке на основе анализа археологических и литологических материалов прибрежных районов Краснодарского края и Ростовской области. Результаты данных естественнонаучных исследований, проведенных за последние годы, позволяют восстановить процессы трансформации природного облика северо-восточного Приазовья и Нижнего Подонья, начиная с эпохи среднего голоцена, в том числе – представить в общих чертах среду обитания и природный контекст, в котором существовали поселения бронзового – раннего железного века региона.

Since ancient times, the deltas of large rivers were zones of intense ethnocultural contacts; in the era of antiquity, they have been the epicenters of active civilizational processes. A striking example is the territory of the northeastern Azov region, located at the junction of vast natural and geographical zones and large historical and geographical territories. The problems of studying and preserving the valuable natural, historical and cultural territorial complex of the region have been relevant for many years. This study is devoted to the study of the influence of natural and anthropogenic factors on the development of landscapes in the northeastern Azov region in the early Iron Age based on the analysis of archaeological and lithological materials of the coastal regions of Krasnodar Territory and Rostov Region. The results of these natural scientific studies carried out in recent years make it possible to restore the processes of transformation of the natural appearance of the northeastern Azov and Lower Don regions, starting from the Middle Holocene, including – to provide an outline of the habitat and the natural context in which the Bronze settlements existed – early Iron Age region.
SPEECH ACTS IN KIRINYAGA COUNTY ANGLICAN CHURCH SERVICES, KENYA
Authors: Muriithi Gerald Njuki
Published: September 2021

This study is based on a pulpit discourse and aimed at determining the speech acts that are used in sermons. The research is based on the Anglican Churches within Kirinyaga. The study shows how priests use the speech act to influence the hearers or congregation to make decisions. The research was also based on both speech act theory and the cooperative principle to understand the contextual basis deep. The maxims of the speech act are discussed, and recommendations are made on how they are supposed to be embraced for quality purposes. The research used several methods of collecting first-hand information. These methods were both based on qualitative and quantitative data. They include observation, recording, and direct interviews which were later analyzed and recorded for reference in the future. For instance, the recordings were transcribed and recorded in disks that were not prone to attack by malware. The types of speech acts used in the sermons include verdictives, commissives, declarations, representatives, and directives. These speech acts were representing a part of the sermon which conveyed a strong basis of the sermon. Thus, it acted as a strengthening catalyst. The study on the other hand showed how the speaker used the speech acts to inform, congratulate, make promises, and condemn. It is therefore recommended that the Bible Teaching Institutions should make sure before releasing a person for priestly duties is well conformed with the speech acts in such a way that the congregation can rely on them in times of word which is aimed at changing their lives and affecting their decision making. In conclusion, the research is solely concerned with speech acts in Anglican Churches within Kirinyaga and the same should be done in other churches to come up with a contextual distinctive clue on the same subject.

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POPULATION GROWTH INDUCED AND HOUSEHOLDS FINANCIAL VULNERABILITY IN NIGERIA
Authors: Mbah Chidinma C. , Okoli Chike K. , Uzonwanne Chinecherem M.
Published: September 2021

Nigeria has been recording a rapid increase in its population over the years. This reality has posed a serious concern for the welfare of households especially as the increase in population growth puts households at the risk of financial vulnerability. Based on this, this study is on the move to examined the impact population growth induced has on household in Nigeria. The study made use of secondary data obtained from World Bank and the Central Bank statistical bulletine spanning from 1981 to 2020 to analyze the impact of population growth induced and its financial vulnerability on household using a structural vector autoregressive model (SVAR). After the analysis, the study found out that in the long run, an increase in financial vulnerability, due to an increase in population growth decreases household welfare in Nigeria. Hence, this study recommends that the Nigerian legislature should formulate a law against rapid population growth induced to ensure that the increase in population does not outscore the means of subsistence.

JEL: H10; H31

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THE INFLUENCE OF TEACHER AND STUDENT CHARACTERISTICS ON STUDENT PERCEPTIONS OF TURKISH EFL TEACHERS’ INTERPERSONAL BEHAVIOR
Authors: Işıklı Ceren
Published: September 2021

Research shows that different student and teacher characteristics affect students’ perceptions of teachers’ interpersonal behavior to varying degrees. Studies on interpersonal teacher behavior mostly refer to such student and teacher characteristics as gender, work experience, age, socioeconomic and cultural backgrounds, as well as school affiliations and academic achievements. This study investigates several teacher and student characteristics in terms of their influence on students’ perceptions of interpersonal behavior of Turkish teachers of English as a foreign language. The variables investigated are teacher experience, teacher gender, teacher age, student gender and birthplace, and student educational background and academic achievement. In addition to insights drawn from the mean scores of student perceptions, the study found significant correlations for such characteristics as teacher experience and student gender.

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META-THEMATIC ANALYSIS OF FLIPPED CLASSROOM APPLICATIONS
Authors: Başaran Mehmet
Published: September 2021

The aim of this study is to determine the effectiveness of the flipped classroom, which is one of the activities and student-centered models, on the cognitive, affective, and social dimensions of students by making a meta-thematic analysis of qualitative studies. In the screening carried out by considering these criteria, 683 studies were reached, and 71 studies were analyzed according to the content analysis technique due to various eliminations. It is found that the flipped classroom model increases academic success by facilitating effective learning; it has been concluded that it increases the learning motivation and reduces the stress of not learning by encouraging them to engage in learning processes. 

 

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EFFECT OF ACTIVITY-BASED INSTRUCTIONAL STRATEGY ON SENIOR SECONDARY SCHOOL STUDENTS’ RETENTION IN CIRCLE GEOMETRY IN ABUJA, NIGERIA
Authors: Durojaiye David Sunday , Jekayinfa Olatunji James , Oloda Festus Sunday Smart
Published: September 2021

This study investigated the effects of activity-based instructional strategy on senior secondary schools students’ retention in circle geometry. The study employed a quasi-experimental design of the type pre-test, post-test groups design. The sample for the study comprised of 162 senior secondary 2 students drawn from two randomly selected co-educational schools in Federal Capital Territory, Nigeria. The research instrument was Mathematics Retention Test (MRT) containing items adapted from standardized WAEC questions. The test –retest method was employed for the reliability of the test instrument. The Pearson Product Moment Correlation Coefficient (r)=0.86 was obtained. Data collected were analyzed using t-test. The finding of this study revealed that there was a significant difference in the retention of students taught circle geometry using activity-based instructional strategy (ABIS) and the students taught circle geometry using conventional methods in favour of the students taught using ABIS. The study also indicated that there was no significant difference between the retention of male and female students in the experimental group who were taught circle geometry using ABIS. It was therefore recommended that mathematics teachers should use strategies that will encourage the active participation of students in mathematics classes such as ABIS which in turn would enhance retention. Also, governments at all levels should organize trainings and/or workshops for mathematics teachers on the use of ABIS in teaching mathematics.

 

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RECRUITMENT PROCESS AND EMPLOYEE PERFORMANCE IN UNIVERSITY OF IBADAN, NIGERIA
Authors: Ukpabi Ihezie Donatus , Salaudeen Kehinde Kenneth
Published: September 2021

Effective organizational sustenance is predicated on employees’ job performance. Ability to have workforce that are suitable for global best practice is contingent on good recruitment, selection and placement strategy of the organization. The study population was the University of Ibadan, teaching and non-teaching staff, male (mean = 26.39, SD = 4.47), female (mean = 26.73, SD = 5.63). The covid-19 pandemic necessitated online questionnaire administration to the participants using Google form. It was found that there was significant relationship between recruitment, selection, placement and employee performance; there was significant joint influence of recruitment, selection and placement on employees’ performance; there was significant independent influence of placement and employee performance, there was no significant independent influence of recruitment and selection on employee performance. University of Ibadan should devise means of ensuring that the most productive workers are recruited, selected for employment and eventually given appointment for placement in the different departments and units within the university. The procedure for selection and placement of the would-be employees should be thorough, objective and devoid of sentiment. Gender consideration for employment into establishment should be discouraged, and the most qualified candidate should be considered ahead of gender or any other factors that might distort merit in the selection process. 

 

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INNOVATION IN EDUCATION – ADMINISTRATION AND ACTIONS OF ENCOURAGEMENT & SUPPORT IN PRIMARY EDUCATION
Authors: Antypas Gerasimos
Published: September 2021

The promotion and implementation of educational innovations by the principal of a school organization is an important challenge that he is called upon to undertake together with the teachers of the educational organization. This paper focuses on leaders̉ actions to encourage the organization and implementation of innovations in the school organization. In the present work, an attempt is made to investigate in a sample of 104 directors of Primary Education in the Region of Western Greece issues related to the necessity and climate of introducing innovative actions in the school organization they serve, the suitability of specific models - leadership style for implementing innovations in school organization and encouraging and supporting actions to implement innovations in schools. The research highlighted the need for education through the implementation of innovative actions with an important factor being the existence of a positive communication climate through a democratic leadership style. Innovation incentives seem to be related to having a relevant master's degree, training and years of management, while in-school training as an innovation support action seems to be related to the years of management. In fact, the success of an innovative action is never guaranteed, but it depends on many factors, making the role of the principal in the school organization crucial.

 

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