bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the position-dependent mass Schrödinger equation for Mie-type potentials
Authors: Ovando G , Peña J J , Morales J , López-Bonilla J 
Published: December 2021

Abstract
The exactly solvable Position Dependent Mass Schrödinger Equation (PDMSE) for Mie-type potentials is presented. To that, by means of a point canonical transformation the exactly solvable constant mass Schrödinger equation is transformed into a PDMSE. The mapping between both Schrödinger equations lets obtain the energy spectra and wave functions for the potential under study. This happens for any selection of the O von Roos ambiguity parameters involved in the kinetic energy operator. The exactly solvable multiparameter exponential-type potential for the constant mass Schrödinger equation constitutes the reference problem allowing to solve the PDMSE for Mie potentials and mass functions of the form given by m(x) = skx

s-1/(xs
+ 1))2. Thereby, as a useful application of our proposal, the particular Lennard-Jones potential is presented as an example of Mie potential by considering the mass distribution m(x) = 6kx
5/(x
6 + 1))2. The proposed method is general and can be straightforwardly applied to the solution of the PDMSE for other potential models and/or with different position-dependent mass distributions.
Third party stabilization of unstable coordination in systems of coupled oscillators
Authors: McKinley Joseph , Zhang Mengsen , Wead Alice , Williams Christine , Tognoli Emmanuelle , Beetle Christopher 
Published: December 2021

Abstract
The Haken-Kelso-Bunz (HKB) system of equations is a well-developed model for dyadic rhythmic coordination in biological systems. It captures ubiquitous empirical observations of bistability – the coexistence of in-phase and antiphase motion – in neural, behavioral, and social coordination. Recent work by Zhang and colleagues has generalized HKB to many oscillators to account for new empirical phenomena observed in multiagent interaction. Utilising this generalization, the present work examines how the coordination dynamics of a pair of oscillators can be augmented by virtue of their coupling to a third oscillator. We show that stable antiphase coordination emerges in pairs of oscillators even when their coupling parameters would have prohibited such coordination in their dyadic relation. We envision two lines of application for this theoretical work. In the social sciences, our model points toward the development of intervention strategies to support coordination behavior in heterogeneous groups (for instance in gerontology, when younger and older individuals interact). In neuroscience, our model will advance our understanding of how the direct functional connection of mesoscale or microscale neural ensembles might be switched by their changing coupling to other neural ensembles. Our findings illuminate a crucial property of complex systems: how the whole is different than the system’s parts.
Parallel Quantum Computation Approach for Quantum Deep Learning and Classical-Quantum Models
Authors: Payares E.D. , Martinez-Santos J.C. 
Published: December 2021

Abstract
The paradigm of Quantum computing and artificial intelligence has been growing steadily in recent years and given the potential of this technology by recognizing the computer as a physical system that can take advantage of quantum mechanics for solving problems faster, more efficiently, and accurately. We suggest experimentation of this potential through an architecture of different quantum models computed in parallel. In this work, we present encouraging results of how it is possible to use Quantum Processing Units analogically to Graphics Processing Units to accelerate algorithms and improve the performance of machine learning models through three experiments. The first experiment was a reproduction of a parity function, allowing us to see how the convergence of a given Quantum model is influenced significantly by computing it in parallel. For the second and third experiments, we implemented an image classification problem by training quantum neural networks and using pre-trained models to compare their performances with the same experiments carried out with parallel quantum computations. We obtained very similar results in the accuracies, which were close to 100% and significantly improved the execution time, approximately 15 times faster in the best-case scenario. We also propose an alternative as a proof of concept to address emotion recognition problems using optimization algorithms and how execution times can be positively affected by parallel quantum computation. To do this, we use tools such as the cross-platform software library PennyLane and Amazon Web Services to access high-end simulators with Amazon Braket and IBM quantum experience.
Learning gamma-ray scanning technique through an educational simulation rig
Authors: Wibisono W , Sugiharto S 
Published: December 2021

Abstract
Gamma-ray scanning is non-destructive testing (NDT) technique to inspect problems in distillation columns of industrial plant. In order to familiarize with the problems’ identification and data interpretation, an attempt has been made by constructing an educational rig for simulation of gamma-ray scanning technique in a laboratory scale. The rig is made of cylindrical transparent acrylic material with a diameter and a height of 0.3 m and 2.4 m, respectively. The rig consists of artificial trays and packed bed structures designed in such a way that it represents a duplicate of the distillation unit but in a miniature size. The rig is also equipped with a submerged water pump and water tank which both are located at the bottom part of the rig. Water from the tank are circulated by a water pump through a pvc tube to a distributor at the upper part of the rig. In the rig, water is flowing downward gravitically for passing through packed bed and trays structures until terminated at the tank. The gamma-ray scanning experiment was carried out by moving the radiation detector and Cs-37 gamma-ray source simultaneously from top to bottom for every 5 cm moving step. Artificial problems such as flooding, tray positions, collapsed trays are clearly identified. The lesson learned from this experiment concludes that simulation of gamma ray scanning is very suitable for troubleshooting and diagnosing malfunctions of the internal structure of the distillation column.
Briquettes from Biomass Waste
Authors: Haryanti N H , Suryajaya  , Wardhana H , Husain S , Noor R , Anggraini Y , Sofi N , Aprilia D 
Published: December 2021

Abstract
This research made three kinds of briquettes from various biomass waste, including alaban wood charcoal and rubber seed shells mixed with coal bottom ash and coal fly ash. The purpose of the study was to obtain the characteristics and quality of briquette combustion. Making briquettes is by drying, grinding, and sifting raw materials then mixed with adhesive, printing and drying. Briquettes were made with variations in composition and pressure and the particle size of the material passing through the 50 and 250 mesh sieves. Briquettes produced from alaban wood charcoal and coal bottom ash, or fly ash, obtained more bottom ash or fly ash composition characteristics. The moisture content and calorific value would be lower while the ash content was higher. While the initial ignition time, the combustion duration is getting longer, but the burning rate would decrease. Briquettes made from rubber seed shells and coal bottom ash obtained variations in composition and pressure that affect the characteristics and quality of combustion. The higher the rubber seed shell composition and pressure, the lower the water and ash content, but the calorific value increased.
The influence of problem based learning model and critical thinking ability on higher order thinking skills (HOTs) of physics prospective teachers students
Authors: Nurhayati  , Wahyudi  , Angraeni L 
Published: December 2021

Abstract
This study aims to determine the effect of applying problem-based learning models, critical thinking skills, and their interactions on students’ higher-order thinking skills in optical materials. The research method used is a quasi-experimental method with a two-way ANOVA design. This research was conducted at IKIP PGRI Pontianak in the second-semester students of the physics education study program as many as 34 students. Data on students’ higher-order thinking skills were obtained using multiple-choice tests with reasons, while data on students’ critical thinking skills were measured using multiple-choice tests. Based on the results of data analysis, it can be concluded that: The ability of prospective physics teacher students to complete the HOTS-based physics test is better after the problem-based learning model is applied. Future physics teacher students with high critical thinking skills have better performance in meeting HOTS-based physics tests. There is an interaction between applyingicip2021est the problem-based learning model and the essential skills of thinking of prospective physics teacher students in completing the HOTS-based physics test. Implementation of the problem-based learning model is vital for other physics materials. In addition to improving the understanding of physics concepts, it also enhances higher-order thinking skills for prospective physics teacher students.
Science literacy-based sound wave e-worksheet: Validity aspects
Authors: Lestari P C , Miriam S , Misbah M 
Published: December 2021

Abstract
This study aims to describe the validity of e-worksheets based on science literacy in sound-bearing materials. This research is research and development with the ADDIE model. This science literacy-based e-worksheet validator numbers three people, consisting of two academics and one practitioner. The validation results using an e-worksheet validation sheet based on science literacy show that the validity of e-worksheets in sound wave material has good criteria. Therefore, e-worksheets based on science literacy can be used to learn physics in sound wave material.
The development of electronic teaching materials on linear impulse and linear momentum to improve students’ scientific literacy
Authors: Hidayat R , Salam M A , Dewantara D 
Published: December 2021

AbstractStudents’ low scientific literacy competence and the unavailability of electronic teaching materials that match scientific literacy indicators that can be used in online learning encourage researchers to develop electronic teaching materials to improve students’ scientific literacy. This research aims to produce and describe the appropriateness of electronic teaching materials used in the learning process to enhance scientific literacy. The electronic teaching materials developed are based on scientific literacy indicators, namely explaining scientific phenomena, interpreting data and providing scientific evidence, designing and evaluating scientific investigations. The type of research used is research and development of the ADDIE model. The appropriateness of electronic teaching materials in terms of validity, practicality, and effectiveness. Research data was obtained from validation sheets given to three validators, student response questionnaires and learning outcomes tests. The data were analyzed by validity test, practicality test, and effectiveness test using N-gain score. The results showed that: 1) the validity of teaching materials obtained a score of 3.52 in the very high category, 2) the practicality of electronic teaching materials based on student response questionnaires obtained a percentage of 80.81% in the practical category, 3) the effectiveness of electronic teaching materials obtained a score of 0.44 in the medium category and the students’ scientific literacy ability 44.11% in the medium category. Based on the results of the study, impulse and linear momentum electronic teaching materials have been produced to improve students’ scientific literacy that is appropriate for use in the learning process. This research has implications, namely increasing students’ scientific literacy, especially on impulse and linear momentum material.
Publications related to virtual laboratories during the covid 19 pandemic: A bibliometric review and analysis
Authors: Saparini S , Andriani N , Misbah M 
Published: December 2021

AbstractDuring the COVID-19 pandemic, virtual laboratories are instrumental in learning physics concepts. A virtual laboratory is one media that can be used as a solution to carry out concept discovery activities through simulation using computer software. This article was created to explain the trend of publications related to virtual laboratories during the COVID-19 pandemic for 2020-2021 through bibliometric analysis of the literature. The papers analyzed were obtained using the Publish or Perish (PoP) software on the Google Scholar database. The following publication trend expresses in the form of graphic visualization, which is analyzed using VOSviewer software. Overall, articles with the keyword virtual laboratory published in the late 2020-2021 period focus on its relationship with Covid 19 and evaluation. This focus of research shows that during the past year, the focus of research is how to evaluate learning through virtual laboratories.
The development of electronic modules with science literature through direct instruction of impulse and momentum materials
Authors: Arifuddin M , Hidayah N P , Mahtari S 
Published: December 2021

Abstract
This research aims to produce an electronic module with scientific literacy through direct instruction on impulse and momentum materials and describe its feasibility. The specific objective of this study is to describe the validity, practicality and effectiveness of the electronic module. The research method used is research and development using the ADDIE model (Analyze, Design, Develop, Implement, Evaluate). The test subjects in this study were ten students at one of the senior high schools in Banjarmasin. The data were obtained through the electronic module validity sheet instrument, student response questionnaire sheets, and student learning outcomes tests. The results show that: (1) the electronic module is declared valid with a very high category, (2) the electronic module is declared practical in the good category, (3) the electronic module is declared effective with a gain score of 0.64 in the moderate category. In this study, it can be concluded that the electronic module with scientific literacy through direct instruction on impulse and momentum material is declared fit for use in learning.
Visual learning style-based chemistry mental model representation through transformative online learning
Authors: Winarti A , Almubarak A , Saadi P 
Published: December 2021

Abstract
Analysis of learning styles is one of the main things teachers need to do before carrying out teaching. The study of learning styles can provide an overview of how a teacher designs a learning concept by students’ learning styles. The learning process will show students’ mental models with their respective learning styles so that these mental models become the primary material for how teachers develop students’ cognitive. This research aimed to describe students’ mental models in terms of students’ visual learning styles. The method used is descriptive with qualitative and quantitative approaches with transformative-based learning concepts. The research results show that chemistry education students for chemistry learning innovation courses only have visual learning styles of 71.43% and audio by 28.55% and do not have kinaesthetic learning styles. This research focuses on visual learning styles to see students’ mental models. The conclusion is that students still need cognitive strengthening, especially the ability to interpret phenomena at the sub microscopic level. With the visual learning style, students are expected to transform their cognitive so that they have mental structures and models relevant in theory and terminology.
The practicality of natural science learning devices on the concept of environmental pollution with problem-solving learning models
Authors: Fahmi  , Fajeriadi H , Irhasyuarna Y , Suryajaya  , Abdullah  
Published: December 2021

Abstract
Less varied learning methods make learning activities boring. Emphasis on mastery of concepts and teacher dominance make students’ activities passive. The correct methods are needed to achieve the learning objectives. This study aims to evaluate the practicality of natural science learning devices for junior high school on the concept of environmental pollution using a problem-solving learning model. The research method uses Design Development Research by Tessmer. The data was taken at the small group evaluation and field test. Data were collected through observation of teacher and student activities with a scale of 1-4; self-assessment with a score of 1 (positive) and 0 (negative); and student response questionnaires on a scale of 1-5. The data were categorized and analysed descriptively. The results of the small group evaluation are: teacher activities get a good category; student activities with good categories in the preliminary and closing activities, but main activities are still quite good; self-assessment aspects show eight positive and two negatives, and student responses show nine positive and one negative. The field test results are: teacher and student activities get a “very good” category; self-assessment aspects show eight positive and two negative, and student responses are positive for all aspects.
Development of e-modules coloid materials based on PjBL-STEM to improve scientific literature and student learning outcomes of wetlands context
Authors: Rusmansyah  , Anjaini N , Kusasi M 
Published: December 2021

AbstractDevelopment research has been carried out that aims to produce an e-module, a valid, practical, and effective STEAM-PJBL approach on colloidal material. This type of research is Research and Development (R&D) with a 4D development model modified into 3D (define, design, development). The e-module trial was carried out in the School Chemistry 2 class, which consisted of 22 students. Data collection techniques used validation sheets, readability questionnaires, response questionnaires, observation sheets, scientific literacy tests, and learning outcomes tests. Data analysis used descriptive analysis. The study results indicate that the developed e-module has met the following criteria: (1) Validity, judging from the value of the module feasibility aspects, has very valid criteria. (2) Practicality, seen from the readability results of e-modules on individual and small group tests obtaining practical and very practical criteria, student responses to e-modules obtained very practical criteria, as well as observations of lecturers’ ability to use e-modules and manage their respective classes. -each obtained very practical criteria. (3) Effectiveness, seen from the results of the N-gain scientific literacy and knowledge learning outcomes, each of which shows an increase in height and the criteria for learning outcomes of attitudes and skills to obtain good and very skilled criteria.
Preface of the 4th International Conference on Electrical, Electronics, Informatics, and Vocational Education (ICE-ELINVO) 2021
Authors: Hariyanto D 
Published: December 2021

ICE-ELINVO 2021 is the fourth international conference on Electrical, Electronics, Informatics, and Vocational Education organized by the Department of Electrical Engineering Education in cooperation with the Department of Electronics and Informatics Education, Faculty of Engineering, Universitas Negeri Yogyakarta. The 4th ICE-ELINVO 2021 was held virtually on October 5th, 2021 due to the Covid-10 pandemic and some of its restrictions issues. The main purpose of this conference is to bring together the professional practices, industrial experts, researchers, vocational teachers, academia, and decision-makers including the government to a unified communication forum for sharing their recent research and developmental activities in Electrical, Electronics, Informatics, Mechatronics, and Vocational Education.
This year’s conference theme is the “INNOVATION ON RESEARCH IN ELECTRICAL, ELECTRONICS, INFORMATICS, MECHATRONICS, AND VOCATIONAL EDUCATION IN SUPPORTING SUSTAINABLE SOCIETIES”. In the new normal era, developments and innovations in technology are more advanced with a variety of sophistication that can facilitate almost all of our work. Industry 4.0 technologies such as mobile internet, automation of knowledge work, the internet of things, cloud technology, advanced robotics, artificial intelligence, embedded systems, and autonomous vehicles, provide new opportunities for humans to support intelligent societies. This conference is initiated to contribute cutting-edge ideas to technology growth.
Design Smart Grid Hybrid in Faculty of Engineering Universitas Negeri Yogyakarta
Authors: Ali Muhamad , Djoko Laras BT , Muhfizaturrahmah  , Deny PS 
Published: December 2021

Abstract
The Faculty of Engineering, Universitas Negeri Yogyakarta (UNY), as one of the educational institutions in Engineering, still uses electrical energy from PT PLN, mainly generated from steam and gas power plants. Dependence on fossil energy can be reduced by utilizing renewable power plants, both solar and wind. For this reason, it is necessary to study the use of a Smart Grid system that can regulate electricity needs by optimizing renewable power plants. The Smart Grid components consist of solar power plants, wind power plants, batteries, inverters, and grid power sources from PLN integrated into the Smart grid system. We have designed the Smart Grid system through field observations and data processing with the HOMER Pro software to obtain an optimal hybrid power generation system and wind turbine. The study results indicate that the Faculty of Engineering, UNY has excellent potential to develop smart grids. The potential for solar energy is 418.393 kWh/year, and wind energy is 2.78 kWh/year. The Smart grid system is sufficient to meet the electricity consumption of only 205.5 kWh/year.
LQR state feedback controller with precompensator for magnetic levitation system
Authors: Winursito A , Pratama G N P 
Published: December 2021

AbstractMagnetic levitation system (MLS) is a nonlinear system that attracts the attention of many researchers, especially control engineers. It has wide range of application such as robotics, high-speed transportation, and many more. Unfortunately, it is not a simple task to control it. Here, we utilize state feedback controller with Linear-Quadratic Regulator (LQR) to regulate the position of a steel-ball in MLS. In addition, we also introduce the precompensator to nullify the steady-state errors. The linearized model, controller, and precompensator are simulated using Matlab. The results and simulation verify that the state feedback controller and precompensator succeed to stabilize the position of steel-ball at the equilibrium for 0.1766 seconds and no steady-state errors.