bluuebunny/crossref_metadata_2025 huggingface dataset:
Penerapan Model Pembelajaran Kooperatif Tipe Think-Pair-Share Melalui Daring Pada Materi Pencemaran Lingkungan Untuk Meningkatkan Hasil Belajar Siswa Kelas VII SMP Kristen Palangka Raya
Authors: Netaneel Ririnrut , Miranda Yula , Savitri Shanty
Published: September 2023

Hasil observasi pra penelitian menunjukkan bahwa siswa lebih banyak menunggu materi dari guru daripada menemukan sendiri pengetahuan terhadap materi yang di pelajari. Hal ini terjadi karena kondisi pandemi Covid-19 sehingga siswa sulit melakukan diskusi secara offline/tatap muka. Oleh karena itu, penerapan model kooperatif tipe TPS bagi siswa melalui proses pembelajaran dengan metode Daring/Online dengan teknik menggunakan aplikasi Zoom dan Whatsapp. Penelitian ini bertujuan 1) Mendeskripsikan pengelolaan data pembelajaran Daring yang menerapkan model pembelajaran kooperatif tipe TPS pada materi pencemaran lingkungan, 2) Mengetahui penerapan model pembelajaran kooperatif tipe TPS melalui Daring pada materi pencemaran lingkungan untuk meningkatkan hasil belajar ranah kognitif siswa kelas VII SMP Kristen Palangka Raya, 3) Respons siswa terhadap pembelajaran kooperatif tipe TPS melalui Daring pada materi pencemaran lingkungan. Penelitian ini merupakan penelitian tindakan kelas terdiri atas 2 siklus yang mencakup 4 langkah dalam setiap siklusnya yaitu penyusunan rencana, pelaksanaan kegiatan, observasi tindakan, dan refleksi atas tindakan yang dilaksanakan. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran kooperatif tipe TPS melalui daring dapat meningkatkan hasil belajar siswa, perbedaan hasil belajar pada siklus 1 dan siklus 2 menunjukkan hasil signifikan. Pengelolaan kegiatan pembelajaran secara keseluruhan aspek yang diamati terlaksana dengan baik. Hasil respon siswa menunjukkan respon siswa yang positif dan setuju apabila materi IPA lainnya juga menerapkan model pembelajaran kooperatif tipe TPS.
Development of Web-based Chemistry Learning Media With the Help of the Google Form Application on the Material Properties of the Periodic Elements of class X MIPA SMA Negeri 2 Palangka Raya Academic Year 2020/2021
Authors: Lumayan Sinaga  , Nopriawan Berkat Asi  , Maya Erliza Anggraeni
Published: September 2023

This study aims to develop and test the feasibility of web-based chemistry learning media assisted by the google form application on the material properties of the periodic elements of class X MIPA at SMA Negeri 2 Palangka Raya in the academic year 2020/2021. This research is a development research using the DDD-E development model (Decide, Design, Development, and Evaluate). The results showed: (1) The resulting product was a web-based learning media assisted by the Google Form application on the material properties of the periodic elements that were packaged including learning objectives, material, sample questions in the form of videos, practice questions, and pre-test questions. in the google form application, (2) the learning media product developed is suitable for use as a chemistry learning aid. The results of the material expert's assessment obtained an average value of 77.61% (good). The results of the media expert's assessment obtained an average value of 84.81% (very good). The resulting chemical learning media products have a positive effect on use of upper group students, but have no effect on middle and lower group students due to the difficulty of questions on learning media according to students and are not accustomed to using web-based learning media assisted by Google applications. form on chemistry studies.
Implementation of Flipped Classroom Learning Model through the Line of Students Learning Outcomes in Biological Scope Materials of Class X SMA Negeri 4 Palangka Raya
Authors: Agitha Geby Sitopu  , Shanty Savitri  , Akhmadi
Published: September 2023

The results of observations in SMA Negeri 4 Palangka Raya that the value of Biology subjects for some students is still low, this is due to the lack of understanding of students in the learning process carried out online (online). Learning using e-learning in the presence of technology in the learning process makes students feel more interested and not easily bored and can improve student learning outcomes. The formulation of the problem in this study is whether the Flipped Classroom learning model has increased the learning outcomes of students in the learning process in the material scope of biology class X in SMA Negeri 4 Palangka Raya. This study aims to determine the application of the flipped classroom learning model to student learning outcomes, as well as to determine the response of students to the flipped classroom learning model using learning videos on the scope of biology in class X SMA Negeri 4 Palangka Raya.

This research is included in the type of quantitative research, this research uses only one class, namely the experimental class, using the One-Group Pretest-Posttest Design. The sampling technique used random sampling. This study used one class with a total of 24 students. Instrument test analysis to calculate the validity, reliability, level of difficulty, and differentiation test using the Anates application version 4.0.9. Cognitive learning outcomes were collected through the pretest and posttest using a multiple choice test instrument of 25 questions. The learning outcome data were analyzed using the analysis prerequisite test including normality test, homogeneity test and normalized gain test.

The results showed that the application of the online flipped classroom learning model could improve student learning outcomes in the subject of biology class X at SMA Negeri 4 Palangka Raya. The average pretest score was 52 while the posttest average score was 80.63. Based on the N-gain calculation, it was obtained 12.50% low-ability students, 70.83% medium-ability students and 16.67% high-ability students. Overall, the average N-gain value was 0.54 in the medium category, which means that the pretest and posttest results have increased learning outcomes.
Youth participatory action research: Integrating science learning and civic engagement
Authors: Worker Steven M. , Espinoza Dorina , Kok Car Mun , Neas Sally , Smith Martin H.
Published: September 2023

Strengthening young people's scientific literacy and civic engagement are important educational goals for Cooperative Extension. We implemented youth participatory action research (YPAR) projects over three years at five schools. The YPAR approach integrates science learning and civic engagement by empowering youth, with the help of adult facilitators, to decide upon a community issue to research, design and implement their research, and then plan a service project based on research findings to address the issue. We explored young people's and educators' perspectives on which project elements influenced youth participation, examined opportunities for youth science and civic-related learning, and asked educators to reflect on their own learning and development. Using data generated from youth focus groups and educator interviews, we found that YPAR grounds science learning in young people's lived experience. It also provides a meaningful approach to science learning through raising young people's critical consciousness of community issues. YPAR may be used in other extension programs to increase motivation for deeper and sustained participation in learning experiences.
Mesin Pengiris Tempe Semi Otomatis Jenis Disc Cutter Vertical
Authors: Hilda Porawati  , Ari Kurniawan
Published: September 2023

Rempeyek Ilham is one of the Micro, Small and Medium Enterprises (MSMEs) in Jambi City which is engaged in the production of tempeh peanut brittle. The increase in the capacity of the tempeh slices is done by making an automatic tempeh slicing machine using a vertical disc cutter. The slicing method is to use a crankshaft mechanism which produces a reciprocating motion with a 2-way movement direction, namely the transfersal direction and the longitudinal direction. The thickness of the wedge is regulated by a stopper with the help of a spring push mechanism. The results showed that the tempe cutting machine with a cutting time of 1 minute 37 seconds, the average number of slices obtained with a size of 2 mm was 83.8 slices and for sizes above 2 mm (2.1 mm-3 mm) as many as 68 slices, and the rest of the tempeh pieces are 5.6 cm long.
Mapping a Set of Tools to Ensure Cloud and Distributed Computing, Virtualization Tools and Data Storage Systems in the Work of the Transport and Logistics Center
Authors: Shagov Nikita , Mamedova Natalia , Urintsov Arkadiy
Published: September 2023

The existing gaps in approaches to the deployment of transport and logistics centers (TLC) within the edges of the backbone network lead to errors in the implementation of the spatial development strategy. Information support solutions for the implementation of terminal, transportation, and warehousing technologies are the least elaborated. As a result, errors have to be corrected in the process of operating the information architecture. There is a need to complement the existing TLC deployment management system with new tools that enhance the validity of TLC location assessment and eliminate the randomness factor in the choice of information architecture for TLC backbone network objects. This research aims to develop a flexible solution for network architecture design using cloud, fog, and edge layers. The main requirement for a flexible solution is that it can be rapidly deployed when the technology architecture changes. The proposed tool visualizes the structure of the network architecture and allows the analysis of information flows by capturing data on the movement of material cargo within the center and between TLC network facilities. The mapping tool considers the network computational load evaluation factor for the cloud, fog, and edge layers. The scientific novelty of the research results is achieved by the principle of system management of the components of complex systems. The practical significance of the results of the study lies in the possibility of using the mapping tool in the process of information architecture design at the stage of making decisions about the deployment of TLC network objects.
Factors Affecting Teachers' Integration of Visualization Technology in Geometry: PLS-SEM Analysis
Authors: Yahya Faridah Hanim , Jamil Mohd Ridhuan Mohd , Othman Mohd Syaubari , Shuib Tajul Rosli , Murtafiah Wasilatul
Published: September 2023

Visualization is identified as a crucial element that affects students' performance in Geometry. Technology plays an important role to assist weak students in visualizing concepts in Geometry. Teachers need proper planning in teaching to help their students in understanding the concepts. This study used partial least squares-structural equation modelling (PLS-SEM) to test the hypotheses to verify the effects of variables on teachers’ intention of integrating visualization technology in teaching geometry. The model consists of four constructs: teaching strategy, teaching activity, selection of media, tools and teaching aids, and assessment. The research instrument consisted of 30 survey questions for four main constructs: teaching strategy, teaching activity, selection of media, tools, and teaching aids and assessment. The questionnaires were distributed to 180 teachers who teach Mathematics in secondary schools. The study used a PLS-SEM modeling tool to analyze data for reliability and validity. Results show that teaching strategy, teaching activity, selection of media, tools and teaching aids, and assessment significantly influence the integration of visualization technology in Geometry. This finding is a reference for policymakers and implementers to improve the quality of teaching and learning in Geometry for secondary schools.
Examining the Influence of Perceived Organizational Support on Career Success: An Analysis of the Mediating Role of Work Engagement
Authors: Abuzaid Ahmad Nasser
Published: September 2023

This quantitative and descriptive study examines the relationship between perceived organizational support (POS), work engagement, and career success among healthcare employees in Jordan. That data has collected from a sample of 459 respondents using an online questionnaire. The author tested the hypothesized relationships using structural equation modeling analysis via Amos 26 software. The study results have demonstrated that POS positively impacts work engagement and both subjective and objective career success. Moreover, work engagement mediates the relationship between POS and subjective and objective career success. These findings highlight the importance of fostering a supportive organizational culture that enhances employees’ engagement and career success. The study contributes to the body of knowledge on POS, work engagement, and career success in the Arab world and provides implications for HR practices in the healthcare sector.
Research Misconduct: Maintaining the Anonymity of a Complainant.
Authors:   UK Research Integrity Office, Sainsbury Nicola
Published: September 2023

This note aims to unpack the issues around maintaining the anonymity of a complainant in research misconduct investigations.
Fortalecimiento de Capacidades para la Investigación Científica en Docentes de la Carrera de Pedagogía de las Artes y Humanidades de la Universidad Nacional de Chimborazo
Authors: Herrera Latorre Paulo David , Orozco Poma Robert Danilo , Núñez Sánchez William Paúl
Published: September 2023

La Educación Superior, toma un papel protagonista en el desarrollo socio económico de un país, varios aspectos toman importancia a la hora de plantear las líneas idóneas de cómo debe desarrollarse el contexto nacional, atendiendo a las problemáticas educativas, sociales, culturales, económicas, políticas, ecológicas, que definen y atiendan a su entorno de una marera en que la interrelación entre los actores sociales sea el mecanismo de subsistencia. Para ello, la universidad cuenta con ejes fundamentales: Investigación, Vinculación, Prácticas de la profesión, Docencia, tomando las riendas sobre la visibilización de las posibles soluciones; para ello la investigación es el mecanismo idóneo y que ha demostrado tener efectividad en el mundo, para ello, la universidad cuenta con ejes fundamentales: Investigación, Vinculación, Prácticas de la profesión, Docencia, fomentando así las artes en el aprendizaje y enseñanza de nuestros estudiantes y su divulgación y revalorización por medio de ellos en la puesta en práctica de su vida laboral.
Análisis de las Habilidades Blandas en los Alumnos de las Licenciaturas en Mercadotecnia y Recursos Humanos del Centro Universitario de la Ciénega, Calendario 2023A
Authors: Navarro Guerrero Ivonne Haydé , Vaca Barajas Claudia Karina , Cárdenas Castellanos Jessica Arlette
Published: September 2023

La presente investigación tiene como objetivo analizar las habilidades blandas en estudiantes del Centro Universitario de la Ciénega de los programas educativos en Mercadotecnia y Recursos Humanos, para saber cuáles de estas habilidades han desarrollado más en el ambiente académico para que puedan ejércelas en el campo laboral.  Este estudio tiene un enfoque de tipo cuantitativo, con alcance descriptivo y corte transversal, aplicado a una muestra de 68 estudiantes que cursaron el último semestre. Se identifica que las habilidades con mayor prevalencia son inteligencia emocional, proactividad, resiliencia y empatía. Se concluye que las empresas y el mercado laboral exigen la presencia de las habilidades antes mencionadas para ejercer con mayor eficacia y eficiencia los puestos ofertados por las empresas, de tal manera que es necesario desarrollar tales habilidades durante su formación académica.
Implementación de un Sistema de Control de para un Huerto Escolar en una Comunidad Rural del Estado de Yucatán
Authors: Pech de la Portilla Janet Guadalupe , Chan Chi Mario Rodolfo , Carlos Humberto López May  , Martín Vela Javier Antonio
Published: September 2023

En algunos municipios del estado de Yucatán, el servicio del agua no es constante durante todo el día, llegando incluso a recibir este servicio por las mañanas o tardes durante un tiempo estimado, por lo que los pobladores recolectan el agua en diversos recipientes para su posterior uso, priorizando según sus necesidades donde utilizarlo. Es aquí donde surge la necesidad de dosificar el agua por aquellas familias o escuelas rurales que cuenten con huertos familiares en sus patios o instalaciones, ya que muchas personas o asociaciones utilizan estos cultivos para apoyarse en su economía familiar. Este documento contiene el desarrollo de un prototipo que servirá de apoyo en el riego de pequeños huertos localizados en la escuela Secundaria Técnica N° 45 en la comunidad de Homún, Yucatán en colaboración con la fundación Educar para producir A.C., con la finalidad de lograr una mejor optimización y uso de este líquido vital que influye de manera importante en la calidad de vida de la población. El prototipo desarrollado consiste en un microcontrolador, que actúa como control de un temporizador y un par de relevadores en conjunto con el sistema de arranque de la bomba para asegurar el suministro y la dosificación de agua para mantener hidratados los huertos. Este prototipo implementado está basado en un Arduino UNO, donde se integran y procesan señales analógicas recibidas de un temporalizador que conforman el sistema automatizado.
Interacción Suelo Estructura: una Revisión del Estado del Arte
Authors: Acuña Izquierdo Fabio L. , Smith Castilla Jonathan , Luna Villadiego Maily , Barrios Valverde Johann A.
Published: September 2023

En la actualidad algunos codigos de diseño estructural tienen excluido el uso de los efectos de interaccion suelo estructura y lo propenen que sea a criterio del diseñador el uso o no de estos, lo que hace que no se realice un buen analisis y diseño de la estructura considerando los efectos de sitio, es por ello que algunos autores atraves de los años han logrado realizar investigaciones que logran demostrar que considerar los efectos ISE y compararlos con el analisis de la estructura con base empotrada tienen mucha incidencia en los resultados.  En el modelamiento de estructuras es necesario considerar los efecto de sitio para analizar  parametros establecidos sobre la edificacion, por ello se necesita establecer mas investigaciones en el area de Interaccion suelo estructura y lograr unificar un criterio solido para incluir este analisis obligatorio en los diseños estructurales. Este documento investigativo sobre el estado del arte de los efectos ISE sobre las estructuras sirve como referencia a investigaciones futuras en el tema para considerar dichos efectos en el comportamiento de las estructuras especialmente en datos de salida como periodos de la edificacion, derivas de piso y amortiguamiento.
Tomografía Cone Beam y Guía Quirúrgica para Autotrasplante Dental de Tercer Molar con Ápice Cerrado: Caso Clínico
Authors: Alexa Valeria Castellanos Ortiz , Treviño Angel Bernal , América Susana Mares García
Published: September 2023

El autotrasplante dental es el acto quirúrgico de trasladar un diente sano hacia el alveolo de otro diente que ha sido extraído debido a la imposibilidad de restaurarlo; existe poca evidencia sobre autotransplantes de dientes con ápice cerrado. Se reporta el seguimiento a 18 meses de un autotrasplante dental realizado en un paciente masculino de 33 años, cuyo primer molar mandibular izquierdo fue reemplazado por su tercer molar superior izquierdo (con ápice completo). La planeación quirúrgica se realizó utilizando t tomografía computarizada de haz cónico (CBCT); con el software InVesalius se realizó la segmentación del diente donador para crear digitalmente el modelo 3D e imprimirlo. Mediante radiografía periapical se evaluó el espacio del ligamento periodontal, formación de hueso cortical, presencia o ausencia de reabsorción radicular, infección e inflamación. Clínicamente se evaluó movilidad, profundidad del sondaje y función masticatoria. Al primer mes no se observó inflamación o infección, la movilidad fue grado 1, y el hueso cortical no tuvo cambios. A los 4 meses se observó formación de hueso cortical y del ligamento periodontal, mejorando a los 12 y 18 meses; evidenciando una completa integración fisiológica entre el ligamento periodontal y hueso, sin reabsorción ósea ni signos de inflamación o infección.
Design of Covid19 Disease Detection for Risk Identification using Deep Learning Approach
Authors: Rahul Sanmugam Gopi  , Lavanya Dhanesh  , Mohammad Aljanabi  , Tavanam Venkata Rao  , Tavanam Venkata Rao  , M. Thiruveni  , S. Mahalakshmi
Published: September 2023

In the twentieth century, various diseases of different variants and countless epidemics like Covid-19 have emerged worldwide. Covid-19 has been stated as a global pandemic; fly infestation is a significant cause of pollution. And it makes the international economic community vulnerable to attacks. The current coronavirus is affecting one of the essential epidemics—early detection of pre-malignant disease at low cost and appropriate isolation of patients with either covid-19 or non-covid-19. In addition to often taking a long time to diagnose the exact disease of the coronavirus, it is prone to human error. A covid19 recognition design using Deep Learning (DL) and Recursive Relational Feature Selection (RRFS) is proposed to overcome this shortcoming by implementing Deep Support Neural Networks (DSNN) models for the early detection of coronaviruses. Initially, a test dataset of Covid19 samples is collected, and during training, the raw dataset process can be started using specific models to remove unwanted noise in the grid. Then, the incompletely processed dataset can be introduced into the feature selection process to determine the best features for covid19 RRFS. We recently proposed a DSNN algorithm for classifying coronaviruses and their detection accuracy. This model can be used for timely and accurate diagnosis of various stages of corona infection. Thus, they effectively detect the apparent result of Covid-19 and achieve reliable performance compared to earlier methods.
Impact of Implementing ISO 26000 on the Service Quality: The Mediating Role of Information and Communication Technology (ICT)
Authors: Aysheh Hassan Abu Ayyash  , Mohammed Abed Hussein Altaee  , Mohd Saiful Izwaan Saadon  , Mohamad Rosni Othman  , Norshahrizan Nordin  , Mohammad Falah Samar Aljaman
Published: September 2023

The purpose of the study is to test the impact of implementing ISO 26000 on service quality and examine of the mediating role of information and communication technology (ICT) of the humanitarian organization; the International Rescue Committee (IRC). This study has two types of objectives; theoretical and practical objectives that aim to clarify and explain: the principles of ISO 26000, the service quality dimensions, and the ICT role as a mediating factor between ISO 26000 and service quality. This study also aims to identify the clauses and standards that the IRC is committed to and to what extent this commitment impacts the service quality in the presence of ICT. Lack of clarity at the level of compliance with the social responsibility standards (ISO 26000) of the provision of services by the IRC, and lack of clarity of the framework used by the IRC in the governance and management of ICT to provide these services were the main reasons to conduct this study. Two questionnaires have been used to collect the data. The first one was filled by the beneficiaries of IRC and the second one was filled by the IRC seniors. The findings show a statistically significant impact of implementing ISO 26000 on service quality. There is also a significant positive relationship between ISO 26000 and ICT. Finally, findings revealed a significant indirect impact for ISO 26000 of which ICT played a mediating role on the service quality. This study strongly recommends decision makers at IRC to pay more attention to implementing ISO 26000, and to examine the role of ICT which improves the service quality.
Animation Videos Promote Health Education for Children and Adolescents
Authors: M. Muktiarni  , Nur Indri Rahayu  , Nia Lestari
Published: September 2023

This research is oriented toward developing animated video-based digital media as a medium for promoting and campaigning for healthy living and sedentary behavior. The research method used in this study is Design Based Research, which consists of three main stages: needs analysis, design, and development. The needs analysis stage is carried out through a review of research results and literature review studies regarding digital media in education. The next stage is digital media design, starting with classifying material regarding sedentary behavior. The product development stage consists of four stages: design, animate, composite, and render. The final stage is a media validation test carried out to see the feasibility of the animated video media that has been developed. The results of expert validation and validation of animated video-based digital media are categorized as good so that the animated videos that have been designed are suitable for use as learning media to promote and campaign for healthy living to reduce sedentary behavior.
Enhancing COVID-19 Patients Detection using Deep Transfer Learning Technique Through X‑Ray Chest Images
Authors: Sahar Yousef Mohammed
Published: September 2023

This study addresses the urgent need for early detection of COVID-19 infection, considering its global impact. COVID-19 is caused by the severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) and has affected more than 250 countries. Chest X-rays have been identified as a valuable tool for swift diagnosis of COVID-19 infection. In this research, we propose a composite approach to detect COVID-19 infection in its initial phases using radiographic images of the chest. To leverage existing models effectively, transfer learning is employed. Our model incorporates ensemble learning, combining transfer learning models like Efficient Net, Google Net, and XceptionNet. These models exhibit the ability to differentiate patients as COVID-19 positive, tuberculosis positive, pneumonia positive, or in good health. To evaluate the performance of our proposed model, we utilize two widely adopted datasets. Comparative analysis demonstrates that our technique surpasses current state-of-the-art models, as indicated by various performance measures.
Impact of Al2O3 with Different Injection Pressures Using Deccan Hemp Oil Methyl Ester-Diesel Blend: An Experimental Study
Authors: Manjunatha Swamy Kumathi Math  , Manjunath Huruli
Published: September 2023

Fuel derived from deccen hemp oil (DHO) has been utilized in the current study due to non-stop consumption and unpredictable price fluctuations, which made researchers concentrate on searching for a suitable substitute for diesel fuel (DF). This study aims to investigate the effect of injection pressure (IP) on the performance, emission, and combustion behaviours of the compression ignition (CI) engine using aluminium oxide (Al2O3) nanoparticles. In the present work, the Al2O3 nanoparticles were blended with deccen hemp oil methyl ester-diesel fuel blend (DHME20) at a dosing level of 50 mg/l. Engine performance, emission, and combustion behaviour were assessed with Al2O3 blended DHME20 at two different IP of 210 and 230 bar, and results were analyzed. The blending of nanoparticles into the test fuel resulted in improved characteristics of the engine. Increased IP enhances the spray penetration in the cylinder, improving the combustion quality. This study concluded that mixing Al2O3 with DHME20 might be a better alternate fuel for a CI engine operating at 230 bar of IP.
Comparative Investigation of Resistance Prediction for Surface Combatant Ship Model using CFD Modeling
Authors: Alaaeldeen Mohamed Elhadad Ahmed
Published: September 2023

The Multi-Mission Surface Combatant (MMSC) is a highly maneuverable combatant ship capable of littoral and open ocean operations. It was designed to confront modern maritime and economic security threats. The MMSC takes the proven capabilities of the littoral combat ship and the inherent flexibility of the Freedom-variant hull to meet the unique maritime requirements of international navies. Computational fluid dynamics (CFD) is applied to present a method to predict the resistance for new surface combatant ship. First, calculations for a typical benchmark DTMB 5415-24 model are carried out using three different mesh sizes for Froude numbers from 0.10 to 0.48 for the purpose of model validation by Star CCM+. The numerical results are compared with the experimental data and the published CFD solutions in terms of wave field and resistance coefficients for accuracy of the solution parameters. Finally, the method is used to study the influence of Froude number variation on the total resistance and wave pattern for the new combatant ship model under the same conditions. Quantitative agreement between the numerical simulations has been observed. This demonstrates that our CFD model is capable of simulating the steady flow around a ship hull with an acceptable accuracy and thus can be used as a complementary tool to laboratory model tests for ship design and ship hydrodynamic research.
USING A VIRTUAL TWIN OF A BUILDING TO ENSURE SECURITY IN EDUCATIONAL INSTITUTIONS
Authors: Absadyk Azat , Absattar Yerdaulet
Published: September 2023

This research paper delves into the exploration of computer vision technology and digital twins as a means to enhance security measures in educational institutions. The study primarily focuses on the creation of a virtual replica of the first floor of a school and the integration of a person detection algorithm with the existing surveillance cameras. By leverag- ing the capabilities of the digital twin and real-time monitoring, comprehensive surveillance of the premises becomes feasible, resulting in simplified security operations. The paper sheds light on the significant potential of training neural networks for specific security tasks, such as the identification of weapons or the detection of anomalies in human behavior. These trained neural networks can be seamlessly integrated into the digital twin, thus ensuring public safety within the educational environment. The findings of this study provide substantial evidence for the effectiveness of computer vision technology and digital twins in bolstering security measures. The ability to create a virtual representation of the school’s first floor enables com- prehensive monitoring and surveillance, aiding in the prevention and prompt response to se- curity incidents. The integration of person detection algorithms further enhances the system’s capabilities by automatically identifying and tracking individuals within the premises. Addi- tionally, the deployment of neural networks for specialized security tasks adds an extra layer of protection, enabling the identification of potential threats and the detection of abnormal behavior patterns. By employing computer vision technology and digital twins, educational institutions can establish an advanced security infrastructure that optimizes monitoring, en- hances situational awareness, and ensures a safer environment for students, staff, and visitors. The research presented in this paper highlights the tremendous potential and practical impli- cations of these technologies in the realm of educational security.
MATHEMATICAL MODELING OF WATER MOVEMENT DURING A DAM BREAK USING THE VOF METHOD
Authors: Amirgaliyev Yedilkhan , Merembayev Timur , Omarova Perizat
Published: September 2023

River valleys in mountainous areas are often subject to heavy rains and melting glaciers, resulting in the risk of mudflows and the destruction of hydraulic protective structures. In order to minimize the potential risk and negative outcomes of a disaster, both on an individual and environmental scale, it is crucial to possess essential information. This includes understanding the timing, location, and extent of flooding, as well as comprehending the force of water flow impact on protective structures. In the research, the numerical process of the movement of the water flow caused by the breakthrough of the dam is investigated. A two-dimensional numerical model of water flow during a dam break was constructed using the VOF method to describe the described process. With the help of the VOF method, the movement of the water surface is captured, while maintaining the law of conservation of mass. The mathematical model consists of Reynolds-averaged incompressible Navier-Stokes equations and includes the interphase equation. The turbulent k-e model was used to close the system of equations. The numerical algorithm used is PISO (Pressure-Implicit with Splitting of Operators). The obtained numerical results agree with the experimental data, indicating the developed algorithm’s reliability and accuracy. The results are presented as comparative graphs and images showing the contour of the free surface movement along the experimental reservoir. A numerical model that has been tested in this way can provide significant support in preventing the devastating consequences of a dam break and providing timely assistance during the evacuation of the population.
INFORMATION-LOGICAL MODEL OF EDUCATION OPTIMIZATION IN REMOTE MODE
Authors: Zunimova Gulnaz , Soltan Gulzhan , Likhacheuski Dzmitry , Issayeva Nazym
Published: September 2023

The educational optimization process is widely researched in the theoretical aspect. Analyzing existing sources made it possible to highlight the research issues: the need to create an optimizing distance studying model, in which work with weaker students becomes possible both within the educational process and in individual or group independent work. The study aims to develop an information-logical model for optimizing distance studying. This model should provide for the learning process organization in such a way as to strengthen the weaknesses of students, reveal their potential and focus on the comprehensive development of knowledge and skills. The task formalization is carried out using the Hungarian algorithm and Boolean variables. The main work limitation is the operation with integers. Discreteness manifests itself already at the modelling stages in many problems, for example, when working with Boolean variables. An example with the most straightforward information model construction using the logical functions "true/false" with the transition to a chain of matrices is given. It demonstrates the studying optimization algorithm and presents an expanded information-logical model. The presented model was preliminary tested in one of the academic groups of the S. Seifullin Kazakh Agro Technical Research University. Students' knowledge inspections were carried out at the approbation beginning. Then a student group working on a student project was divided into subgroups according to the algorithm. The knowledge inspection showed an 11.3% improvement in results at the work's end. Further research on this topic may consist of expanding the presented model's capabilities and developing appropriate modules for knowledge control and algorithmization of related tasks.
Description of the Level of Knowledge and Attitudes of the Elderly About Rheumatoid Arthitis
Authors: Fricilia Sani Putri Gina , Mahaputra M. Ridho
Published: September 2023

The purpose of this study was to describe the level of knowledge and attitudes of the elderly about rheumatoid arthritis. This research uses a descriptive method. The population is all the elderly who are in the Posyandu Elderly Housing Complex of the Balaibaru Police Working Area of the Belimbing Padang Health Center with a total sample of 82 elderly. The results showed that 78% of the elderly had good knowledge about rheumatoid arthritis and 64.4% of the elderly had a positive attitude about rheumatoid arthritis. Research on the description of the level of knowledge and attitudes of the elderly about rheumatoid arthritis has obtained good results, for this reason it is hoped that the Belimbing Padang Health Center can improve the provision of much more and more information about rheumatoid arthritis in order to improve the health status of the elderly much better better than before.
STYLIZED FACTS, VOLATILITY DYNAMICS AND RISK MEASURES OF CRYPTOCURRENCIES
Authors: Bruzgė Rasa , Černevičienė Jurgita , Šapkauskienė Alfreda , Mačerinskienė Aida , Masteika Saulius , Driaunys Kęstutis
Published: September 2023

This study explores the stylized facts, volatility clustering, other highly irregular behaviour, and risk measures of cryptocurrencies’ returns. By analysing bitcoin, ripple, and ethereum daily data we establish evidence of strong dependencies among analysed cryptocurrencies. This paper provides new insights about cryptocurrency behaviour and the main measures of risk and detailed comparative analysis with tech-stocks. Comprehensive research on stylized facts confirmed high risk for both cryptocurrencies and tech-stocks with cryptocurrencies being even riskier. Empirical research findings are useful in developing dependence and risk strategies for investment and hedging purposes, especially during more volatile periods in the markets as there was confirmed existence of volatility clusters when high volatility periods are followed by low volatility periods. Sensitivity analysis and measures of Value-at-Risk (VaR) and Expected Shortfall (ES) show the amount of losses investors can expect in the worst case scenario. Our results confirm the existence of predictability, volatility clustering, and possibilities for arbitrage opportunities. Findings could be beneficial for investors and policymakers as well as for scientific purposes as findings give us a better understanding of the behaviour of cryptocurrencies.
An Untargeted Survey of the Rotational Properties of Main-belt Asteroids using the Transiting Exoplanet Survey Satellite (TESS)
Authors: McNeill Andrew , Gowanlock Michael , Mommert Michael , Trilling David E. , Llama Joe , Paddock Nicholas
Published: September 2023

We present photometric data for minor planets observed by the Transiting Exoplanet Survey Satellite during its Cycle 1 operations. In total, we extracted usable detections for 37,965 objects. We present an examination of the reliability of the rotation period and light-curve amplitudes derived from each object based upon the number of detections and the normalized Lomb–Scargle power of our period fitting and compare and contrast our results with previous similar works. We show that for objects with 200 or more photometric detections and a derived normalized, generalized Lomb–Scargle power greater than 0.2, we have an 85% confidence in that period; this encompasses 3492 rotation periods we consider to be highly reliable. We independently examine a series of periods first reported by Pál et al.; periods derived in both works found to have similar results should be considered reliable. Additionally, we demonstrate the need to properly account for the true proportion of slow rotators (P > 100 hr) when inferring shape distributions from sparse photometry.
Is It Possible to Measure the Lense–Thirring Orbital Shifts of the Short-period S Star S4716 Orbiting Sgr A*?
Authors: Iorio Lorenzo
Published: September 2023

The maximal values of the general relativistic Lense–Thirring (LT) orbital shifts ΔI
LT, ΔΩLT, and Δω
LT of the inclination I, the longitude of the ascending node Ω, and the perinigricon ω, respectively, of the recently discovered star S4716, which has the shortest orbital period

P

b

=
4.02

yr

of all the S stars that orbit the supermassive black hole (SMBH) in Sgr A*, are of the order of ≃5–16 arcseconds per revolution

″

rev

−
1

. Given the current error σ

ω
= 0.°02 in determining ω, which is the most accurate orbital parameter of S4716 among all those affected by the SMBH's gravitomagnetic field through its angular momentum
J

•, about 48 yr would be needed to reduce σ

ω
to ≃10% of the cumulative LT perinigricon shift over the same time span. Measuring ΔI
LT and ΔΩLT to the same level of accuracy would take much longer. Instead, after just 16 yr, a percent measurement of the larger gravitoelectric (GE) Schwarzschild-like perinigricon shift Δω
GE, which depends only on the SMBH's mass M
•, would be possible. On the other hand, the uncertainties in the physical and orbital parameters entering Δω
GE would cause a huge systematic bias of Δω
LT itself. The SMBH's quadrupole mass moment

Q

2

•

induces orbital shifts as little as ≃0.01–0.05″ rev−1.
Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XVIII. The Dark Matter Halo Mass of Quasars at z ∼ 6
Authors: Arita Junya , Kashikawa Nobunari , Matsuoka Yoshiki , He Wanqiu , Ito Kei , Liang Yongming , Ishimoto Rikako , Yoshioka Takehiro , Takeda Yoshihiro , Iwasawa Kazushi , Onoue Masafusa , Toba Yoshiki , Imanishi Masatoshi
Published: September 2023

We present, for the first time, dark matter halo (DMH) mass measurement of quasars at z ∼ 6 based on a clustering analysis of 107 quasars. Spectroscopically identified quasars are homogeneously extracted from the Hyper Suprime-Cam Strategic Survey Program wide layer over 891 deg2. We evaluate the clustering strength by three different autocorrelation functions: projected correlation function, angular correlation function, and redshift–space correlation function. The DMH mass of quasars at z ∼ 6 is evaluated as

5.0

−
4.0

+
7.4

×

10

12

h

−
1

M

⊙

with the bias parameter b = 20.8 ± 8.7 by the projected correlation function. The other two estimators agree with these values; though, each uncertainty is large. The DMH mass of quasars is found to be nearly constant ∼1012.5
h
−1
M
⊙ throughout cosmic time, suggesting that there is a characteristic DMH mass where quasars are always activated. As a result, quasars appear in the most massive halos at z ∼ 6, but in less extreme halos thereafter. The DMH mass does not appear to exceed the upper limit of 1013
h
−1
M
⊙, which suggests that most quasars reside in DMHs with

M
halo

<

10
13

h

-
1

M
⊙

across most of the cosmic time. Our results supporting a significant increasing bias with redshift are consistent with the bias evolution model with inefficient active galactic nucleus feedback at z ∼ 6. The duty cycle (f
duty) is estimated as 0.019 ± 0.008 by assuming that DMHs in some mass interval can host a quasar. The average stellar mass is evaluated from stellar-to-halo mass ratio as

M

*

=

6.5

−
5.2

+
9.6

×

10

10

h

−
1

M

⊙

, which is found to be consistent with [C ii] observational results.
Internal and External Alignment of Carbonaceous Grains within the Radiative Torque Paradigm
Authors: Hoang Thiem , Minh Phan Vo Hong , Tram Le Ngoc
Published: September 2023

We study the internal and external alignment of carbonaceous grains in the interstellar medium (ISM) within the Radiative Torque (RAT) paradigm. For internal alignment (IA), we find that hydrogenated amorphous carbon (HAC) grains having nuclear paramagnetism due to hydrogen protons have efficient nuclear relaxation, whereas both HAC and graphite grains can have efficient inelastic relaxation at both low-J and high-J attractors. For external alignment, HAC and pure graphite grains can align with the radiation direction (k-RAT) at low-J attractors but cannot have stable alignment at high-J attractors due to the suppression of radiative precession. However, HAC grains can align with the magnetic field (B-RAT) at high-J attractors due to fast Larmor precession compared to gas collisions. For HAC grains drifting through the ISM, they can align along the induced electric field (E-RAT) at low-J attractors due to the fast electric precession and only small HAC grains can align at high-J attractors. Nuclear paramagnetic relaxation is inefficient for HAC due to the suppression of nuclear susceptibility. We then study the alignment of carbon dust in the envelope of a C-rich Asymptotic Giant Branch star (IRC+10216) and find that grains aligned at low-J attractors may occur via k-RAT with the wrong IA in the inner region but via B-RAT in the outer region. However, grains aligned at high-J attractors have the right IA alignment via k-RAT due to efficient inelastic relaxation. The polarization pattern observed toward IRC+10216 by SOFIA/HAWC+ can be reproduced when only grains at low-J attractors are present due to the removal of grains at high-J attractors by the RAT disruption.
Spatially Resolved Recent Star Formation History in NGC 6946
Authors: Tran Debby , Williams Benjamin , Levesque Emily , Lazzarini Margaret , Dalcanton Julianne , Dolphin Andrew , Koplitz Brad , Smercina Adam , Telford O. Grace
Published: September 2023

The nearby face-on star-forming spiral galaxy NGC 6946 is known as the Fireworks Galaxy due to its hosting an unusually large number of supernovae. We analyze its resolved near-ultraviolet stellar photometry measured from images taken with the Hubble Space Telescope’s Wide Field Camera 3 with the F275W and F336W filters. We model the color–magnitude diagrams of the UV photometry to derive the spatially resolved star formation history of NGC 6946 over the last 25 Myr. From this analysis, we produce maps of the spatial distribution of the young stellar population and measure the total recent star formation rate (SFR) of nearly the entire young stellar disk. We find the global SFR(age ≤25 Myr) =

13.17

−
0.79

+
0.91

M

⊙

yr

−
1

. Over this period, the SFR is initially very high (

23.39

−
2.11

+
2.43

M

⊙

yr

−
1

16–25 Myr ago), then monotonically decreases to

5.31

−
0.17

+
0.19

M

⊙

yr

−
1

in the last 10 Myr. This decrease in global SFR over the last 25 Myr is consistent with measurements made with other SFR indicators. We discuss in detail two of the most active regions of the galaxy, which we find are responsible for 3% and 5% of the total star formation over the past 6.3 Myr.
Chapitre 13. D’un corps l’autre
Authors: Gregoire-delory Vincent
Published: September 2023

L’évolution des lois de bioéthique reflète, en partie, l’évolution du regard porté par la société française sur la nature du corps humain. Ces dernières années, les débats ont tout particulièrement porté sur les conséquences, en matière de filiation, de la loi de 2013 ouvrant le mariage aux couples de personnes de même sexe. Dans ce contexte précis, cette contribution examine en quoi le développement des recherches sur les cellules-souches vient troubler notre regard sur le concept même d’ordonnancement du corps humain. Ce concept est en effet central car permet de mettre en perspective éthique et praxis démocratique.
Questions, (re)formulations et réparations dans des visites médicales au Yucatan (Mexique). Une intercompréhension fluctuante
Authors: Ticca Anna Claudia
Published: September 2023

Cet article propose une analyse multimodale d’interactions au cours de consultations médicales vidéo-enregistrées au Yucatan (Mexique) entre un médecin hispanophone et des patients issus de la communauté locale dont la langue maternelle est le maya yucatèque. L’étude porte sur des séquences de (re)formulation et de réparation conversationnelle du médecin afin d’obtenir une réponse du patient quand celle-ci n’est pas produite au moment attendu ou ne semble pas être suffisamment précise ou vraisemblable. L’analyse révèle que, si ces procédés permettent de progresser dans l’interaction, ils ne garantissent pas toujours l’élaboration d’un sens partagé et que les disparités d’accès aux ressources linguistiques, ainsi que les asymétries interactionnelles et sociales des locuteurs, ont un impact sur la manière d’interagir des patients, sur l’établissement de la relation de soins et sur leur prise en charge.