bluuebunny/crossref_metadata_2025 huggingface dataset:
POWER QUALITY IMPROVEMENT USING CUCKOO SEARCH BASED MULTI-LEVEL FACTS CONTROLLER
Authors:   Dept of EEE, Aditya Institute of Technology and Management, Tekkali, A.P, India, Rao B. Srinivasa , Kumar D. Vijaya ,   Aditya Institute of Technology and Management, Tekkali, A.P, India, Kumar K. Kiran ,   Dept of EEE, Aditya Institute of Technology and Management, Tekkali, A.P, India
Published: October 2021

Nowadays, the improvement of power quality is the major concern in power system scenario. These problems mainly caused due to utilization of different load conditions to the power system. To mitigate these problems different methods are implemented in literature. As per literature analysis the one of the Flexible AC Transmission System called as unified power quality conditioner (UPQC) plays a key role. The series and shunt controllers of UPQC designed with 9-level inverters to reduce the harmonic distortions. An instantaneous PQ theory is used to generate the reference signals required for series and shunt controllers along with dq-transformation analysis. A Cuckoo optimization technique is used to tune the parameters of PI controller in shunt controller to achieve better harmonic distortions and improve power quality. This proposed system is to be tested and verified in MATLAB/SIMULINK.
Programs and investments in disruptive
technologies in defence
Authors: Šundov Mirko
Published: October 2021

Hybrid Threats and Wars in 21st Century -
Making Society and Critical Infrastructure Resilient are extremely important
for us to respond to different future threats and challenges. Defence leadership has
acknowledged that they must make significant and urgent changes to its people,
processes, organisations and culture if they are to keep pace with its
strategic competitors and sustain its national security posture.
Helfert’s Theory of a Music Museum (“Musical Archive”)
Authors: Zapletal Miloš
Published: October 2021

The article is devoted to one of the first modern conceptions of a music museum within the framework of Czech or Czechoslovak ideas on musical museology. This conception originated with the musicologist Vladimír Helfert. The article follows the development of Helfert’s conception, which was realised primarily in the form of the Musical Archive of the Moravian Museum. The article also identifies the constant features of that conception. Helfert conceived of a music museum (“musical archive”) as a basic institution facilitating work on musical historiography, meaning the compiling, cataloguing, and protecting of musical artefacts (especially two-dimensional artefacts), and their presentation of to the expert community.
Nueve preguntas a Pablo Montoya. Peregrinaciones del artista, el pensador y el personaje literario
Authors: Vanegas Orfa Kelita
Published: October 2021

Entrevista al escritor colombiano Pablo Montoya.
A modo de introducción. Posturas autoriales y estrategias de género en el campo literario actual
Authors: Pérez Fontdevila Aina
Published: October 2021

Introducción al monográfico "Posturas autoriales y estrategias de género en el campo literario actual"
Mujeres a la vista: género y scriptura autorial en Un ojo de cristal, de Miren Agur Meabe
Authors: Pascua Canelo Marta
Published: October 2021

La proliferación en los últimos años de los estudios autoriales, de la mano de especialistas como Jêrome Meizoz, Ruth Amossy o Dominique Mainguenau, ha permitido explorar el lugar del autor en el campo literario y sus diferentes estrategias de posicionamiento. Sin embargo, las investigaciones en la intersección entre los estudios autoriales y los estudios de género, inauguradas y desarrolladas en el ámbito hispánico por expertas como Meri Torras, Aina Pérez Fontdevila o Eleonora Cróquer Pedrón, no han alcanzado aún la notoriedad que merecen para atender a las características particulares que manifiesta la autoría de mujeres. En la medida en que las escritoras han sido históricamente desautorizadas para ocupar una posición autorial reconocida, han necesitado recurrir a múltiples estrategias de autolegitimación. Este artículo se propone indagar en estas relaciones entre género y autoría con el objetivo de exponer un mecanismo de legitimación observado en la literatura hispánica reciente. En esta dirección, se formula la inscripción autorial como una nueva categoría de análisis para la función de autora y se ofrece un estudio de caso centrado en el diagnóstico de esta propuesta teórica en Un ojo de cristal (2014), de la escritora vasca Miren Agur Meabe. Además, se exploran los nexos entre el cuerpo y la autoría femenina a partir de nociones como “corpografía autorial”, “autorialidad corporal” y “sensocorpografía” para concluir que la inscripción de la autoría y la textualización del cuerpo extraordinario caminan conjuntamente en la dirección de la autolegitimación de una autoría disidente.
Analysis of entropy generation with heat generation in time dependent hydromagnetic flow of nanofluid in an oscillatory semi- porous curved channel
Authors: Imran Muhammad , Abbas Zaheer , Naveed Muhammad
Published: October 2021

The present study focusses on the investigation of thermodynamic optimization of hydromagnetic time dependent boundary layer nanofluid flow by employing entropy generation method (EMG) in semi- permeable oscillatory curved channel. We used Buongiorno model for nanofluid to address the impact of the parameters of Brownian motion and thermophoresis. The consequences of heat production are also taken into consideration in energy the equation. The mathematical form of boundary layer equations is accomplished by following the curvilinear coordinates scheme for the considered flow problem. The analytical convergent solution of the determined nonlinear PDEs is achieved through the process of homotopy analysis (HAM). A detailed analysis is conducted out to analyze the consequences of dissimilar variables concerned, such as non-dimensional radius of curvature, Lewis number, magnetic parameter, relation of wall oscillation frequency to its parameter of velocity, Reynolds number, Prandtl number, heat production and thermophoresis parameters, entropy generation rate, Brownian motion parameter and Brickman number, concentration and temperature difference parameters on temperature, velocity profile, concentration, pressure, drag surface force, Bejan number, entropy generation, rate of mass and heat transport are addressed in detail via tables and graphs. It is noted that, the magnitude of heat transmission rate (local Nusselt number) steadily decays for advanced values of radius of curvature variable and Reynolds number.
Application of artificial intelligence in prediction of cardiovascular complications in patients with diabetes mellitus type 2: A protocol of systematic review
Authors:   Tehran University of Medical Sciences, Tehran, Iran, Ferdosian Hengameh , Zamanian Hadi , Emami Sayed Ali , Sedighi Elahe , Moridi Mina , Doustmehraban Maryam
Published: October 2021

Review question / Objective: The aim of this systematic review is to evaluate AI-based models in identifying predictors of cardiovascular events and risk predtion in patients with diabetes mellitus type2. Condition being studied: T2DM patients have an increased risk of macrovascular and microvascular complications, lead to decreased quality of life and mortality. Considering the significance of cardiovascular complications in these patients, prediction of such events would be important. Different traditional statistical methods(such as regression) and new AI-besed algorithms are used to predict these complications in diabetic patients.
Prevalence of sex under the influence of drugs among young adults: a systematic review and meta-analysis protocol
Authors:   International University of La Rioja. Avenida de la Paz, 137, 26006 Logroño, La Rioja, Spain - Faculty of Social Sciences and Humanities., Molla-Esparza Cristian , Carbonell Natalia Gandía ,   Autonomous University of Barcelona. Plaça Cívica, 08193 Bellaterra, Barcelona, Spain., Núñez María Isabel Gómez ,   University of La Rioja. Avenida de la Paz, 137, 26006 Logroño, La Rioja, Spain - Faculty of Social Sciences and Humanities., Ribera Laura Badenes ,   University of Valencia. Av. de Blasco Ibáñez, 13, 46010 València, Spain.
Published: October 2021

Review question / Objective: The objective of this systematic review and meta-analysis is to examine the prevalence of engaging in sex under the influence of drugs among young adults. Condition being studied: The prevalence of sex under the influence of drugs in young adults. Information sources: Published and unpublished literature will be systematically searched via three electronic databases: ISI Web of Science (WoS Core Collection); Scopus; and Psychological Information (PsycInfo). A grey literature search will also be performed via the Google and Google Scholar search engines, in order to obtain other potential relevant studies. Reference lists of relevant published studies will also be examined to obtain additional eligible reports. Additionally, emails will be sent to the research groups that have published the most about SDU, with the aim of identifying unpublished studies.
Borrowing as a Source of Modern Ukrainian Media Vocabulary
Authors: Polishchuk Nataliia
Published: October 2021

The article considers the usage of special foreign language units in the Ukrainian political terminology. This lexis has become an integral part of the contemporary mass-media language. The influence of the English language as the main source for modern borrowed socio-political terms, features of usage in author texts are illustrated.
Motivation of Physical Eponimic Terms
Authors: Mykulchyk Roman
Published: October 2021

Eponimic terms are an integral part of scientific terminology. Their research take an important place among modern problems of terminology. Eponyms – terms. which include the names or surnames of persons or their derivatives, that became special language unit. World scientific (including natural sciences) community for centuries follows the tradition perpetuate the names of the greatest scientists and inventors in terms. Such terms automatically become internationalized, every language adapts them to its structure inherent in her way and the inherent model.
In linguistics there is no consensus about what name implies – anthroponys or other names – can be the basis for the creation of the term, eponyms (or be a term derived from proper names). As a special name may derive from anthroponyms, mythonyms, theonyms, ethnonyms, kosmonyms. Research in terminology argue that the main condition for the creation of terms is presence-anthroponymy historical mention of the existence of any of those persons whose names underlying the creation of eponyms.
The motivation plays a prominent role in term building. It should be considered as one of the elements that ensure consistency of terminology. This quantitative and qualitative characteristics of internal form that genetically inherent in any terminololgical unit. Not being one of the main criteria for evaluation of the term, it helps him remember, facilitates linkages with other terms.
The question of motivation eponimic physical terms in Ukrainian linguistics has not raised. According to many scientists, such important question as motivation needs particular attention.
Eponyms are associative terms, allocated by type of motivation. The motivation is expressed indirectly, through various kinds of associations. The proper names (or family components) plays role of recognizing components for eponymic terms.
The motivation is an important feature of terms. In linguistic science there is no unambiguous interpretation of this concept. Physical eponimic terms are motivated. One of their motivators are exactly eponyms (name or suename of the scientist from which it was formed). These terms have different degrees of motivation regarding their exactly eponyms. For simple eponyms motivation is characterized by a mediate and immediate degree, for complex and compound – mediate and immediate degrees. Motivation of physical eponymous terms is associative. Of course, motivation requires further research in linguistics as well as in terminology and, first off all, creating a consistent unified theory of motivation
L’environnement informationnel des sites boursiers : une étude exploratoire
Authors: Rzem Marouane , Firas Thraya Mohamed
Published: October 2021

L’objectif de cet article est de déterminer, à partir d’une étude exploratoire, les caractéristiques de l’information diffusée sur les sites boursiers tels que Boursorama, Zonebourse, Abcbourse et Boursier.com . Nous suggérons que cette information se caractérise par trois dimensions : une nature, un support et une source. À partir de l’analyse exploratoire de ces dimensions, les résultats montrent que les caractéristiques de l’information diffusée sur les sites bousiers influencent le comportement et les choix des cyber-investisseurs. Cette étude présente ainsi un support pour la gestion de l’information boursière.
On the well-posedness and stability for the fourth-order Schrödinger equation with nonlinear derivative term
Authors: Li Kelin , Di Huafei
Published: October 2021

Considered herein is the well-posedness and stability for the Cauchy problem of the fourth-order Schrödinger equation with nonlinear derivative term \begin{document}$ iu_{t}+\Delta^2 u-u\Delta|u|^2+\lambda|u|^pu = 0 $\end{document}, where \begin{document}$ t\in\mathbb{R} $\end{document} and \begin{document}$ x\in \mathbb{R}^n $\end{document}. First of all, for initial data \begin{document}$ \varphi(x)\in H^2(\mathbb{R}^{n}) $\end{document}, we establish the local well-poseness and finite time blow-up criterion of the solutions, and give a rough estimate of blow-up time and blow-up rate. Secondly, under a smallness assumption on the initial value \begin{document}$ \varphi(x) $\end{document}, we demonstrate the global well-posedness of the solutions by applying two different methods, and at the same time give the scattering behavior of the solutions. Finally, based on founded a priori estimates, we investigate the stability of solutions by the short-time and long-time perturbation theories, respectively.
Better degree of approximation by modified Bernstein-Durrmeyer type operators
Authors: Agrawal Purshottam Narain , Güngör Şule Yüksel , Kumar Abhishek
Published: October 2021

In the present article we investigate a Durrmeyer variant of the generalized Bernstein-operators based on a function \begin{document}$ \tau(x), $\end{document} where \begin{document}$ \tau $\end{document} is infinitely differentiable function on \begin{document}$ [0, 1], \; \tau(0) = 0, \tau(1) = 1 $\end{document} and \begin{document}$ \tau^{\prime }(x)>0, \;\forall\;\; x\in[0, 1]. $\end{document} We study the degree of approximation by means of the modulus of continuity and the Ditzian-Totik modulus of smoothness. A Voronovskaja type asymptotic theorem and the approximation of functions with derivatives of bounded variation are also studied. By means of a numerical example, finally we illustrate the convergence of these operators to certain functions through graphs and show a careful choice of the function \begin{document}$ \tau(x) $\end{document} leads to a better approximation than the generalized Bernstein-Durrmeyer type operators considered by Kajla and Acar [11].
Celebrating the 100th Anniversary of Ferroelectricity
Authors: LEE Jaichan
Published: October 2021

It is 100 years when we think about the history of ferroelectricity. We, who study ferroelectricity, are honored and pleased to share the 100-year anniversary of ferroelectricity and recall its history. At this great moment, we look back to the brief history on the verge of ferroelectricity. Our hope is that ferroelectricity studied as an early collective phenomenon will be coupled with quantum behavior, the essence of modern science, to become a new age in the history of science and technology.
Piezoelectricity and Flexoelectricity from an Energy Harvesting Perspective: Nanogenerators
Authors: HWANG Yoon-Hwae
Published: October 2021

Energy harvesting is the process by which energy can be obtained from external sources and used for wearable electronics and wireless sensor networks. Piezoelectric nanogenerators are energy harvesting devices that convert mechanical energy into electric energy by using nanostructured materials. This article summarizes work to date on piezoelectric nanogenerators, starting with the basic theory of piezo- and flexo-electricity and moving through reports on nanogenerators using nanostructures, flexible substrates and alternative materials. A sufficient power generated from nanogenerators suggests feasible applications for either power sources or strain sensors of highly integrated nanodevices. Further improvements in nanogenerators holds promise for the development of self-powered implantable and wearable electronics.
Bernard Ceyssac, un concepteur de salles de cinéma des années 1960 aux années 1980
Authors: Avila Gómez Andrés
Published: October 2021

Parmi les constructions architecturales réalisées tout au long des « Trente Glorieuses » en France, celles qui correspondent aux bâtiments destinées au spectacle cinématographique ont vécu un essor sans précédent, façonné par la concurrence croissante au sein du secteur de l'exploitation et par les vagues de modernisation du parc cinématographique. En raison de certaines dynamiques de production de ces architectures, une élite de concepteurs spécialisés s'est imposée dans le milieu français ; et pourtant, le parcours professionnel et l'œuvre de ces derniers (architectes, ingénieurs et décorateurs) restent encore méconnus dans l'historiographie française. Cette étude présente une première approche de l'un des plus prolifiques concepteurs des années 1960 aux années 1980, l'architecte parisien Bernard Ceyssac (1922-2016). Son parcours révèle l'existence de cette élite, plutôt méconnue dans les milieux architecturaux mais largement reconnue au sein du milieu des exploitants. Chef de file de ces « architectes des cinémas », à côté d'autres agences installées à Paris – dont celles de Georges Peynet, et de Vladimir Scob –, Ceyssac s'est forgé une carrière exclusivement consacrée à la conception de salles de cinéma, en contribuant aux transformations de ce programme architectural.
Autoethnography and Other Self-Inquiry Methods for Practice-Based Doctoral Research
Authors: Lewis Crystal , Throne Robin
Published: October 2021

For some doctoral practitioner-researchers, the methods used within autoethnography and other self-inquiry-based research methods are appropriate for a practitioner dissertation as the phenomenon of inquiry is a central human, intrinsic, and experiential self-focused construct. The tenets of autoethnography and other self-as-subject research support the view that new knowledge can be discoverable from within the individual lived experience, and this chapter presents current trends and scholarship for the use of autoethnography and other self-inquiry research methods for practice-based doctoral research. The chapter also presents one case from a recent doctoral autoethnographer to illustrate the experience of a practice-based autoethnographic dissertation study within a practitioner doctoral program.
Mixed Methods Research Design
Authors: Baran Mette L.
Published: October 2021

This chapter introduces the various design choices researchers need to decide on prior to conducting the study. The chapter starts with a detailed description of what research design is, followed by an explanation of descriptive, explanatory, or exploratory research questions. This determines what type of data will be collected. The major strategic implementation methods for quantitative, qualitative, and mixed methods are then discussed. The three strategies for mixed methods research—parallel convergent, sequential, and embedded design—are presented in detail along with the rationale for their use. Finally, in the last section, the strands or sequencing of the data collection phase of the study are explained.
The Contribution of Case Study Research in Information Science
Authors: Ngulube Beatrice
Published: October 2021

The reputation of case study research has grown as a research strategy for developing theories and as a method for investigating and understanding world complex issues. The purpose of this chapter is to demonstrate how the case study research can add value to a research project. Case study research, although becoming increasingly popular is not adequately utilised in information science research. The chapter draws on the literature on case study research in various fields and uses examples to inform research in information science. Case study research have been used across a number of disciplines, particularly, in the social sciences, education and business to address real world problems. Many researchers tend to use case study research because of the numerous advantages it offers. For instance, the employment of multiple data collection instruments maximises the depth of information, which in turn increases transferability of the findings. Additionally, the use of multiple cases and multiple data collection instruments make generalisation easy and valid. Maximising generalisability of findings is the ultimate goal of research.
Qualitative Methods in Research
Authors: Tshabangu Icarbord , Ba' Stefano , Madondo Silas Memory
Published: October 2021

This chapter discusses various methods and approaches to data collection under the qualitative methodology framework, noting that these methods provide rigour and depth understanding in an inquiry. Though the chapter touches on traditional qualitative methods such as the interview and observations, it focused more on examining alternative and non-traditional qualitative methods in data collection, such as the bricolage and distance researching. The chapter further identified other strategies such as sampling, triangulation and ethical considerations that may be relevant to a qualitative study. The chapter helps the reader to reach a broad-based understanding as to the location of qualitative research and the methodological demands necessary to apprehend complex social worlds of studied participants.
Negotiating Virtual Learning During a Pandemic
Authors: Alsbrooks Shenita Y. , Anwar Asma , Steward Angela
Published: October 2021

The goal of this chapter is to highlight strategies used by educators to reduce disproportionality in school discipline during turbulent times, such as a pandemic and periods of social unrest. Public schools located in low socioeconomic areas are witness to the overrepresentation of students of color, both male and female, being disproportionately punished. Additionally, these students also suffer academically due to a lack of technological resources, both in school and at their homes. The authors of this chapter are public school educators, who have worked to find solutions to resolve student's loss of knowledge during the COVID-19 pandemic, while recognizing that additional measures are also needed to address school discipline in both face-to-face and virtual settings.
Entry Barriers for Academically-Underprepared African American Students at American Institutions
Authors: Harrell II John Robert
Published: October 2021

The impact of systematic racism within the education system has been a web that researchers have aimed at detangling for many years. The myriad effects that racial oppression have had on the education system are numerous; one area of overwhelming concern is the impact on incoming students' readiness to do college-level work in math and English language arts. The purpose of this chapter is to explore the historical implications that race has had on systems of higher education and to describe the perceptions of a subset of African American college students in Texas regarding barriers to college access and program completion during times of crisis. The researcher will use the historical context of racial oppression and the establishment of higher education systems. The demographics shifts to provide a lens through which the perceptions of a sample of African American college students' experiences can be viewed. Ultimately, this chapter aims to share the lived experiences of these students and give voice to college success data.
Demystifying the Stigma of Transient African American Housing Dwellers
Authors: Baker Wilbert C. , Butcher Jennifer T.
Published: October 2021

African American transient housing dwellers are the studied population in this chapter. A noted section addresses transient students, also referred to as highly mobile students, which are a group that can benefit from additional educational support at school and also in the community. As communities of people are drawn together in faith and love, churches are distinctively positioned to fill in the gap for kids and their communities. By entering into a supportive partnership with a school, they can make the kind of difference that transforms a community. According to Fulgham, every school in low-income communities has a plethora of needs, and churches likely feel compelled to meet each of them. Fulgham went on to encourage churches to prioritize their support for programs and activities that help increase student achievement. This chapter provides findings from interviews conducted with adult transient housing dwellers and suggests methods to reach transient African American students during challenging times, specifically addressing their educational needs.
The Impact of Implicit Bias on Policing Communities of Color
Authors: Holmes Sr. Quentin D.
Published: October 2021

Systemic racism continues to be a significant problem in many, if not all, American institutions. As with any problem, systemic racism can only be properly addressed if it is acknowledged by the person and by extension an institution. The unjustified killing of George Floyd and many other minorities by predominately white police officers have brought both national and international criticism towards the institution of American policing. This chapter will discuss one of the probably causes of police misconduct towards people and communities of color: “implicit bias.” Briefly defined, implicit bias is having attitudes towards people or associate stereotypes with them without a conscious knowledge. The author will provide the background of systemic racism in America followed by policing organizational culture/subculture and the impact of implicit bias on communities/people of color. This chapter will conclude with recommendations to confront implicit bias and improve officer behavior.
Beyond Knowledge
Authors: Putman Rebecca S. , Dixon Kathryn V.
Published: October 2021

Our nation is experiencing a “student achievement crisis” in literacy. Some of the blame for the current crisis in literacy education has been laid at the feet of teacher education programs and their professors. Many pundits of teacher education and literacy education suggest that the solution to increasing reading achievement is simple: Emphasize and teach science of reading (SOR) principles in teacher education programs. In theory, this approach is reasonable; however, the purpose of this chapter is to examine some of the challenges in making the complex content of the SOR accessible to preservice teachers. The authors will also offer possible solutions to help make the SOR more comprehensible so that preservice teachers can increase their transfer of technical and pedagogical knowledge to authentic classroom contexts.
What Preservice Teachers Can Learn From a Content Area Expert
Authors: Beck-Smith Brian T.
Published: October 2021

In this chapter, the author presents the negotiation between students and teachers to combat disengagement in a virtual classroom. To address this concern, the chapter presents a model that increases authentic engagement in a mathematics classroom for a group of sophomores, juniors, and seniors using an academic dialogue strategy that prepares students to think critically about what they are learning in the classroom and how these abstract learnings connect to real-world experiences. The dialogues that occur between the author and the students provide an approach that is widely used in literacy settings but may not always happen in content area instruction.
A MultiDisciplinary Optimization Approach for Sizing Vertical Lift Aircraft
Authors: Sridharan Ananth , Govindarajan Bharath
Published: October 2021

This paper presents an approach to reframe the sizing problem for vertical-lift unmanned aerial vehicles (UAVs) as an optimization problem and obtains a weight-optimal solution with up to two orders of magnitude of savings in wall clock time. Because sizing is performed with higher
fidelity models and design variables from several disciplines, the Simultaneous Analysis aNd Design (SAND) approach from fixed-wing multidisciplinary optimization literature is adapted for the UAV sizing task. Governing equations and disciplinary design variables that are usually self-contained
within disciplines (airframe tube sizes, trim variables, and trim equations) are migrated to the sizing optimizer and added as design variables and (in)equality constraints. For sizing consistency, the iterative weight convergence loop is replaced by a coupling variable and associated equality
consistency constraint for the sizing optimizer. Cruise airspeed is also added as a design variable and driven by the sizing optimizer. The methodology is demonstrated for sizing a package delivery vehicle (a lift-augment quadrotor biplane tailsitter) with up to 39 design variables and 201
constraints. Gradient-based optimizations were initiated from different starting points; without blade shape design in sizing, all processes converged to the same minimum, indicating that the design space is convex for the chosen bounds, constraints, and objective function. Several optimization
schemes were investigated by moving combinations of relevant disciplines (airframe sizing with finite element analysis, vehicle trim, and blade aerodynamic shape design) to the sizing optimizer. The biggest advantage of the SAND strategy is its scope for parallelization, and the inherent ability
to drive the design away from regions where disciplinary analyses (e. g., trim) cannot find a solution, obviating the need for ad hoc penalty functions. Even in serial mode, the SAND optimization strategy yields results in the shortest wall clock time compared to all other approaches.
Application of Two-dimensional Finite Volume Method to Protoplanetary Disks
Authors: Chakkour Tarik
Published: October 2021

Many fascinating astrophysical phenomena can be simulated insufficiently by standard numerical schemes for the compressible hydrodynamics equations. In the present work, a high performant 2D hydrodynamical code has been developed. The model is designed for the planetary formation that consists of momentum, continuity and energy equations. Since the two-phase model seems to be hardly executed, we will show in a simplified form, the implementation of this model in one-phase. It is applied to the Solar System that such stars can form planets. The finite volume method (FVM) is used in this model. We aim to develop a first-order well-balanced scheme for the Euler equations in the the radial direction, combined with second-order centered ux following the radial direction. This conception is devoted to balance the uxes, and guarantee hydrostatic equilibrium preserving. Then the model is used on simplified examples in order to show its ca- pability to maintain steady-state solutions with a good precision. Additionally, we demonstrate the performance of the numerical code through simulations. In particularly, the time evolution of gas orbited around the star, and some proper- ties of the Rossby wave instability are analyzed. The resulting scheme shows consequently that this model is robust and simple enough to be easily implemented.
Sustainable Workshops for Education Leaders for Applying Gained Knowledge
Authors: Alandejani Jehan A.
Published: October 2021

Workshops are very useful tools that allow participants to gain new knowledge and to promote selfdevelopment. However, most workshops tend to be presented in a way that isolates the workshop and the material being discussed and be more like a lecture than a workshop. The aim of this qualitative study was to learn more about how to design effective workshops for leaders. Saudi Arabia has set a clear vision for 2030 to change in education and learning. Simultaneously, the country seeks to increase the female workforce by 8%. To bridge the gap between work-shops and workshop efficacy and come closer to the Vision 2030’s objectives. This study showed how trainers could re-design workshops to be more productive and meaningful. This qualitative study used a hermeneutic phenomenological research approach. Purposive sampling of 36 educational leaders from different departments. Two theories provided a rich foundation and framework for this qualitative study: social constructivist and transformational learning. This qualitative study revealed themes; the implementation of different learning strategies, use of reflection, and the assurance of a safe learning environment. Based on emerged themes and subthemes, tips that workshop professional developers should incorporate when planning and giving a workshop where extracted. The study shed some light on how trainers can transfer the core component in learning that relates to both process and outcome
ОБИЧАЈИ У КУЛТУРИ СРБА И БУГАРА
Authors: аутора Група
Published: October 2021

ОБИЧАЈИ У КУЛТУРИ СРБА И БУГАРА / ОБИЧАИТЕ В КУЛТУРАТА НА СЪРБИ И БЪЛГАРИ шеснаести је по реду двојезични тематски зборник, настао као резултат сарадње Филозофског факултета Универзитета у Нишу и Филолошког факултета Универзитета „Св. Ћирило и Методије” из Великог Трнова. (10‒13. октобра 2019. године)
COVID19 Pandemic evolution through Gompertz’s equation
Authors: Rotgé Hector G. Riveros , Rosas David Riveros
Published: October 2021

ABSTRACT

The Gompertz equation describes the evolution of an epidemic. Applied to the data from France, Spain, Germany, and the United Kingdom, it is adjusted with slight deviations since each country implemented different restriction or distancing measures to prevent the spread. Some countries do not conform to Gompertz. With the data from Mexico, the graphs show that the measured and calculated data are overlapped. The deviations are not noticeable. We made adjustments with data up to recent dates. For the four countries, Gompertz predicts well the evolution of the epidemic. We tried to predict the growth of the epidemic using Gompertz. For Mexico, the maximum number of daily infections was predicted up to a month before it happened.

 

RESUMEN

La ecuación de Gompertz describe la evolución de una epidemia. Aplicada a los datos de Francia, España, Alemania y el Reino Unido, se ajusta con ligeras desviaciones, ya que cada país aplicó diferentes medidas de restricción o distanciamiento para evitar la propagación. Algunos países no se ajustan a Gompertz. Con los datos de México, los gráficos muestran que los datos medidos y los calculados se superponen. Las desviaciones no son perceptibles. Hemos realizado ajustes con datos hasta fechas recientes. Para los cuatro países, Gompertz predice bien la evolución de la epidemia. Intentamos predecir el crecimiento de la epidemia con Gompertz. Para México, se predijo el número máximo de contagios diarios hasta un mes antes de que se produjera.
Percepción de inseguridad y su influencia en el bienestar subjetivo de los habitantes de la Zona Conurbada del Valle de México
Authors: Aldana Fabiola Olvera
Published: October 2021

En México, el Estado ha fallado al mantener el orden público, promover el bien común, disminuir la delictividad y la percepción de inseguridad en su población, como lo muestran las estadísticas nacionales donde el 67.2% de la población señala que el principal problema del país es la seguridad. Esto ha permitido que el llamado Segundo Estado, tome control y promueva sus acciones delictivas, provocando que la población se mantenga en un estado contante de alerta y de modificación de sus hábitos, buscando mantenerse a salvo de la delincuencia. Este fenómeno es aún frecuente en las grandes ciudades, sobre todo en los espacios donde existen grandes grupos poblacionales, como lo es el borde entre la Ciudad de México y el Estado de México. El presente análisis documental pretende exponer la forma en que la delictividad ha cambiado en esta zona, describiendo como han cambiado los índices de delincuencia y a su vez, como esto ha influenciado en la percepción de seguridad y el bienestar de las personas que viven o se mueven por este espacio, sobre todo, en las adaptaciones que han tenido que realizar para no ser víctimas de la violencia y delincuencia que se desarrolla en espacios públicos y el transporte.

 

In Mexico, the State has failed to maintain public order, promote the common good, reduce crime and the perception of insecurity; national statistics shown that 67. 2% of the population said that the country’s main problem is the security. This has allowed the so-called Second State to take control and promote criminal activities, causing the population to remain constantly alert and changing their habits, seeking to keep themselves safe from crime. This phenomenon is still common in large cities, especially in areas where there are large population groups, such as the border between Mexico City and the State of Mexico. This documental nalysis aims to show how crime has changed in this area, describing the crime rates´s change and how that have a influence in the perception of security and well-being of people who live or move through this area, especially the adaptations they have had to make in order not to be victims of violence and crime in public spaces. and transportation.
Inteligencia emocional y habilidades blandas dentro del pensum de Secretariado
Authors: Juárez Gatica Jennifer
Published: October 2021

OBJETIVO: divulgar los resultados obtenidos con la comunidad científica que se interese en actualizar el pensum de la carrera de secretariado bilingüe y oficinista. MÉTODO: el enfoque de la investigación fue cualitativo, con alcance descriptivo, de diseño fenomenológico, la población de estudio estuvo conformada por directora y docentes La muestra estuvo conformada por siete docentes y la directora del establecimiento educativo. La muestra fue intencionada no probabilística. Se utilizó la técnica de grupo focal. Se utilizó como instrumento la guía de observación. RESULTADOS: aunque todos los docentes manifestaron la importancia de implementar contenidos relacionados a la inteligencia emocional y habilidades blandas, la directora, indicó que si se conoce la importancia de éstos temas le hubiera gustado verlo reflejado dentro de las planificaciones de los cursos que se imparten dentro de la carrera. Por otro lado, los docentes, manifiestan que sólo están de acuerdo si la actualización corresponde únicamente a los contenidos que se pueden abordar dentro de los cursos que ya existen, debido a que el Ministerio de Educación no ha sido lo suficientemente claro en los intentos de realizar un diseño curricular por competencias. CONCLUSIÓN: no existen lineamientos específicos dentro del pensum de la carrera de secretariado bilingüe y oficinista para abordar los temas relacionados a la inteligencia emocional y habilidades blandas debido a que no se cuenta con un diseño curricular por competencias.
La importancia de la filosofía para niños en contexto de pandemia
Authors: Argas Garduño María de Lourdes , García Aguilar Yaxiri Montserrat , Méndez Puga Ana María , Flores Manzano Nelva Denise
Published: October 2021

El objetivo es valorar las posibilidades que ofrecen los talleres de filosofía para niños, desde la perspectiva de docentes y niños con experiencia. Se empleó el método fenomenológico. Los docentes y niños señalan que el programa de filosofía para niños es relevante para reflexionar acerca de la vida cotidiana, desarrollar habilidades que les permitan comprenderse a sí mismos, a los otros y al entorno, así como a estar con los otros, por ello. Este tipo de programas podrían permitir a niños y niñas afrontar de manera positiva las implicaciones de la pandemia, bajo el acompañamiento de un adulto.

Abstract

This research aims to assess formative possibilities of philosophical workshops for children during the pandemic. A phenomenological method was applied, supported by interviews and registered observations. Participants consisted of 3 teachers and 19 children and teenagers between the ages of 8 and 14. They pointed out that the program encouraged the development of skills allowing them to understand themselves, others, and their surroundings, among other skills acquired. In conclusion, these types of programs constitute a permanent strategy to positively cope with the pandemic and its implications.
Relationship between Financial Structure and Financial Performance of Flag Carriers in Africa
Authors:   Post Graduate Student, School of Open and Distant Learning, Jomo Kenyatta University of Agriculture and Technology, Kenya, Wambui Maina Kristine
Published: October 2021

While airline profitability has remained a challenge over several years, the weakest performance identified by IATA reports was from airlines in Africa and Latin America. The main objective of this study was to determine the effect of leverage, liquidity, and asset tangibility on firm profitability of flag carriers in Africa. Stratified random sampling technique adopted reduced the working population of 23 firms to 4 firms namely Kenya Airways, Ethiopian Airways, Air Mauritius and South African Airways. Data was collected from each airline’s website over a thirteen-year period between 2005–2017. The findings were that leverage had a significant effect that was either positive or negative depending on whether debt is financed by equity or by assets implying that airline managers should endeavour to target cost-efficient sources of capital. Liquidity and asset tangibility were observed to have no significant effect and had little to no explanatory power on financial performance in the selected African airlines. The study recommends implementing a collaborative effort using a tri-partite debt covenant between airline managers, lenders of capital and government. African governments and local lenders should step in to support their Flag carriers by reducing the gaps and costs associated with acquisition of debt and other sources of capital. Airline managers on their part should manage resources efficiently and be held accountable with periodic audits to ensure they are invested in sustainable levels of their airline’s profitability.
Social Determinants of Health and Health Equity among the Elderly People in Mountain Region of Uttarakhand
Authors:   Senior Fellow, ICSSR, School of Social Sciences, Uttarakhand Open University, Haldwani 263139, Nainital, Uttarakhand, INDIA, Bisht Dr. Hari S.
Published: October 2021

According to World Health Organization (WHO), the Social Determinants of Health (SDH) have an important influence on health inequities – the unfair and avoidable differences in health status seen within and between countries. In countries at all levels of income, health and illness follow a social gradient: the lower the socioeconomic position, the worse the health. The main objective of this paper is to understand these determinants that are prevailing and its relation with the health status of the elderly people in mountain region of Uttarakhand. In order to accomplish the study the data have been collected from 183 households from the three different geographic mountain areas of six administrative regions. The collected data have been further analyzed with SPSS latest version. The findings of study shows that & the self stated very poor health status majority were from the Garhwal mountain region, females those were widows, those were above 81 years, Shudra by caste followed by Khatriya caste, residing in joint family, living in Kuchha houses, civil pensioners, educated above high school & above and average income group followed by high and low income group of the elderly households. However, with respect to the poor health status, occupation, education and income of the household of elderly as the p-values associated with the Ch-square statistics are found to be less than the level of significance. The study concluded with that in built environment of the elderly people like the region, caste, being a female and widow and age above 81 years followed by living amenities like Kuchha house and residing in a joint family system are more significant with respect to the poor health status, while occupation, education and income of the household of elderly as the p-values associated with the Ch-square statistics is found to be less than the level of significance in the mountain region of Uttarakhand.
Investigation of Some Subgroups in Determining the Frattini Subgroup of Non-Abelian Finite Groups
Authors:   Department of Mathematical Sciences, University of Maiduguri, P. M. B. 1069, Maiduguri, Borno State, Nigeria, Ngulde Shuaibu Garba
Published: October 2021

Frattini subgroup, Φ(G), of a group G is the intersection of all the maximal subgroups of G, or else G itself if G has no maximal subgroups. If G is a p-group, then Φ(G) is the smallest normal subgroup N such the quotient group G/N is an elementary abelian group. It is against this background that the concept of p-subgroup and fitting subgroup play a significant role in determining Frattini subgroup (especially its order) of dihedral groups. A lot of scholars have written on Frattini subgroup, but no substantial relationship has so far been identified between the parent group G and its Frattini subgroup Φ(G) which this tries to establish using the approach of Jelten B. Napthali who determined some internal properties of non abelian groups where the centre Z(G) takes its maximum size.
The Role of Promotion and Service Quality in Increasing Consumer Satisfaction and Loyalty in Pawnshops
Authors:   Universitas Muhammadiyah Jember, Qomariah Nurul
Published: October 2021

Pawnshop is one of the non-bank financial institutions that is an alternative for the community in meeting short-term needs. In this pawnshop business, there are many products that can be offered, one of which is gold investment. This study has five objectives, namely the first: to determine the effect of promotion on customer satisfaction, Second, to determine the effect of service quality on customer satisfaction, Third, to determine the effect of promotion on customer loyalty, Fourth, to determine the effect of service quality on customer loyalty, Fifth , to determine the effect of customer satisfaction on customer loyalty. This research was conducted at the pawnshop PT. Pegadaian (Persero) Bondowoso Branch Office. The research sample was determined by 100 respondents using purposive sampling technique. Data analysis to achieve research objectives using Structural Equation Model using WarpPLS 5.0. The results of the study after calculating with WarpPLS 5.0. shows that (1) promotion and service quality have a significant effect on customer satisfaction, (2) promotion has a significant effect on customer loyalty, (3) service quality has no significant effect on customer loyalty, (4) customer satisfaction has an impact on customer loyalty. effect.