bluuebunny/crossref_metadata_2025_split huggingface dataset:
Learning to request in interaction
Authors: Laakso Minna 
Published: October 2021

Abstract
This study examines intersubjective development of
children’s requests in home interactions of Finnish-speaking
1–5-year-old children with their caregivers, siblings and peers.
Children’s early requests emerge sequentially through the
caregivers’ co-construction of the children’s early vocalizations,
word-gesture combinations and two-word utterances. Children’s first
linguistically explicit requests, imperatives, also rely on
intersubjective understanding between the child and the caregiver.
Children start to use conditional verb forms and interrogatives as
social adaptations for making requests to equal peers. Between one
and five years, children’s requesting develops from embodied,
co-constructed action to distinct linguistic formulations.
Caregiver interaction supports the children’s reliance on
co-participants’ co-operation in fulfilling requests whereas peer
interaction enhances children’s intersubjective understanding of
co-participants’ varying commitment and entitlement to grant the
request.
How an improvised scene emerges in theatre rehearsal
Authors: Savijärvi Marjo , Ihalainen Laura 
Published: October 2021

Abstract
This paper investigates how a group of young adults
participating in theatre rehearsals construct a spontaneous
improvised scene. The analysis shows how the youths construct a
fairly coherent scene in a situation in which the interactional
moves and the interactional frame emerges. We analyse how the
improvisation is initiated, how it is carried forward, and how the
scene is discussed afterwards. After the improvised scene, it
emerged that the participants had differing conceptions of what
exactly they had been doing. However, these differing conceptions
did not hinder them from participating and contributing to the scene
in coherent ways and were thus sufficiently similar for practical
purposes. In our analysis, we focus on how the youths constructed
the scene by recycling lexemes, syntactic forms and embodied
actions.
Omega‐3 index and AA/EPA ratio as biomarkers of running‐related injuries: An observational study in recreational runners
Authors: Davinelli Sergio , Intrieri Mariano , Ali Sawan , Righetti Stefano , Mondazzi Luca , Scapagnini Giovanni , Corbi Graziamaria 
Published: October 2021

ABSTRACTThe aim of this study was to examine the association between biomarkers of polyunsaturated fatty acids (PUFA), such as omega‐3 (ω‐3) index and arachidonic acid (AA; 20:4 ω‐6)/eicosapentaenoic acid (EPA; 20:5ω‐3) ratio (AA/EPA), and the prevalence of running‐related injuries (RRI) in a cohort of recreational runners. We performed a retrospective, observational study of 275 non‐elite runners (mean age: 41.20 ± 12.47 years) who were not supplemented with ω‐3 fatty acids. The training characteristics and RRI were recorded over a period of 12 months through a self‐reported questionnaire. Using whole blood samples collected by finger prick, PUFA were quantified by gas chromatography and ω‐3 index and AA/EPA ratio measured. A total of 191 RRI cases were reported, with an injury prevalence rate of 50.9% in the overall population. The injured runners ran a significantly greater weekly distance than uninjured subjects (53.54 ± 25.27 km/week; p = 0.007). In a multivariate regression analysis, the lowest number of RRI was associated with higher values of ω‐3 index (β = − 0.237; 95% CI – 0.308 to – 0.164; R 2 = 0.172; p < 0.0001), while a higher AA/EPA ratio was correlated with higher number of RRI (β = 0.019; 95% CI 0.007–0.031; R 2 = 0.038; p = 0.003). This study identifies ω‐3 index and AA/EPA ratio as potential parameters associated with the risk of RRI. Future research is needed to confirm these results and apply specific nutritional strategies to successfully modify these biochemical variables.Trial registration: ISRCTN.org identifier: ISRCTN12847156.
Machine learning algorithm for decoding multiple subthalamic spike trains for speech brain–machine interfaces
Authors: Tankus Ariel , Solomon Lior , Aharony Yotam , Faust-Socher Achinoam , Strauss Ido 
Published: October 2021

Abstract

Objective. The goal of this study is to decode the electrical activity of single neurons in the human subthalamic nucleus (STN) to infer the speech features that a person articulated, heard or imagined. We also aim to evaluate the amount of subthalamic neurons required for high accuracy decoding suitable for real-life speech brain-machine interfaces (BMI). Approach. We intraoperatively recorded single-neuron activity in the STN of 21 neurosurgical patients with Parkinson’s disease undergoing implantation of deep brain stimulator while patients produced, perceived or imagined the five monophthongal vowel sounds. Our decoder is based on machine learning algorithms that dynamically learn specific features of the speech-related firing patterns. Main results. In an extensive comparison of algorithms, our sparse decoder (‘SpaDe’), based on sparse decomposition of the high dimensional neuronal feature space, outperformed the other algorithms in all three conditions: production, perception and imagery. For speech production, our algorithm, Spade, predicted all vowels correctly (accuracy: 100%; chance level: 20%). For perception accuracy was 96%, and for imagery: 88%. The accuracy of Spade showed a linear behavior in the amount of neurons for the perception data, and even faster for production or imagery. Significance. Our study demonstrates that the information encoded by single neurons in the STN about the production, perception and imagery of speech is suitable for high-accuracy decoding. It is therefore an important step towards BMIs for restoration of speech faculties that bears an enormous potential to alleviate the suffering of completely paralyzed (‘locked-in’) patients and allow them to communicate again with their environment. Moreover, our research indicates how many subthalamic neurons may be necessary to achieve each level of decoding accuracy, which is of supreme importance for a neurosurgeon planning the implantation of a speech BMI.
Four Tier Test (FTT) Development in The Form of Virtualization Static Fluid Test (VSFT) using Rasch Model Analysis to Support Learning During the Covid-19 Pandemic
Authors: Anggraini N , Iswanto B H , Wibowo F C 
Published: October 2021

AbstractThis study aims to develop a valid and reliable test instrument. The test instrument developed is a Four Tier Test (FTT) in a Virtual Static Fluid Test (Test) on Static Fluid material using the Rasch model analysis. The method used in this research is the method of research and development with the 4D model. This research produces an educational product in the form of an FTT in the form of VSFT. The items developed in this study amounted to 20 items. The validation results from several experts gave an average score of 88.13% with very good criteria. The CVR value for each item is 1, while the CVI value is 1 with very good criteria. The validation results from several educational practitioners gave an average score of 89.58% with very good criteria. The results of the Rasch Model analysis showed that the test instrument is accepted, the reliability of all the items has good criteria, all the items are valid and divided into three difficulties, also each item is not biased towards gender differences. The results of the analysis of student misconception showed that only 4.68% of the students understood the whole concept, 23.42% of students only understood partially, 58.95% of students have a misconception, and 12.95% of students did not understand the concept at all. The conclusion of this study is that the FTT instrument in the form of VSFT is valid and reliable as an assessment instrument during the Covid-19 period, and also able to analyze student conceptions.
Virtual Test Instruments to Measure Scientific Literacy of High School Students on Work and Energy
Authors: Oktalia Y , Susila A B , Iswanto B H 
Published: October 2021

Abstract
Science literation is one aspect of assessment that is required in the K-13 curriculum. This study aims to describe the science literacy skills of high school students in the matter of effort and energy in learning physics and to determine the characteristics and quality of scientific literacy instruments using virtual test. The research method used is the 4D development method: Define, Design, Development, Disseminete. The scientific literacy test was validated by expert lecturers and physics teachers with CVI results in the very good category and CVR analysis in the valid category. The results of the analysis of the Rasch model show that the test instrument is accepted and can measure what it should measure. Research participants are tenth grade who has studied the concepts of work and energy. The virtual test contains scientific literacy skills which contain physics questions on the concepts of work and energy. The results showed that the scientific literacy skills of high school students were 65,2% for the contextual aspect, 65,1% for the knowledge aspect, and 69,5% for the competence aspect. Based on the research results, students’ scientific literacy skills are in the good category.
The effect of learning models and divergent thinking on higher-order thinking skills
Authors: Hidayati R , Supriyati Y , Budi A S 
Published: October 2021

AbstractThis study aims to determine the effect of interaction between Problem Based Learning models, Creative Problem-Solving models, and divergent thinking on high order thinking skills. The method used in this study is a quasi-experimental design with treatment by level 2x2. The sample number of this study is as many as 120 students of grade X high school. The sample was divided into two, namely the control class and the experimental class. The control class was given learning using the Problem Based Learning model while the experimental class used the Creative Problem Solving model by having high and low divergent thinking skills. Data about students’ high order thinking skills were obtained using a test in the form of an essay consisting of 5 questions and analyzed using the two-way ANOVA statistical test and the Tukey test as a follow-up test. The results showed that 1) there is a difference in high order thinking students who use the creative problem-solving model with students who use the problem-based learning model, 2) there is a difference in high order thinking skills between students with high divergent thinking ability with low divergent ability students and 3) there is an influence of interaction between learning model and divergent thinking ability to high order thinking skill.
Design of Massive Online Simulation (MOS) On Concept Archimedes’ Principle
Authors: Khofiya N , Wibowo F C , Delina M 
Published: October 2021

Abstract
In learning physics, Archimedes’ law is a physics material that is quite difficult and requires a deep understanding of concepts based on study files from several schools in Banten. As many as 96.4% of students need online simulation media using computers or androids to help study Archimedes Law material. The Massive Online Simulation (MOS) design is divided into six parts, namely the dashboard, home, materials, videos, simulations and quizzes. This study aims to design a media in the form of Massive Online Simulation (MOS) on Archimedes’ legal material. The method used is ADDIE (Analysis, Design, Development, Implementation and Evaluation). Research and development of the ADDIE model is carried out only up to the Design stage. This research can produce an attractive Massive Online Simulation (MOS) design that can be accessed anytime and anywhere.
Virtual Microscopic Simulation (VMS) for physics learning of the photoelectric effect in high school
Authors: Mandagi A F , Iswanto B H , Sugihartono I 
Published: October 2021

Abstract
The photoelectric effect is a physics concept that is often considered difficult by students because it contains abstract and microscopic concepts. So we need a medium that can visualize the concept of particle wave dualism on the photoelectric effect phenomenon microscopically. This study aims to produce “Virtual Microscopic Simulation (VMS)” as a medium for learning physics on the topic of the photoelectric effect in high school. The research method used is Research and Development with a 4D model (Define, Design, Development, and Disseminate). Validation of media feasibility has been carried out by several experts covering aspects of content and media with an average score of 77.2% and 75.7% with good categories. Based on the results of the expert validation test, it can be concluded that VMS can visualize the photoelectric effect process that is suitable for use as a medium for learning physics for students in high school.
The Development of Digital Comic As Learning Media Based On Picture-And-Picture Learning Model On Global Warming Materials During Distance Learning
Authors: Serevina V , Astra I M , Syahida A F 
Published: October 2021

Abstract
Global warming is an environmental physics material that studies the science of rising Earth’s temperature, which includes causes, effects and remedies. Digital comics as a learning media are simple media but can involve the material as a whole with interesting delivery. This study aims to develop learning media in the form of digital comics based on picture and picture learning models on global warming materials that are suitable for use during distance learning at the high school level. The method used in this research is Research and Development (R&D) with a 4D research model (define, design, develop, disseminate). The resulting product is in the form of a digital comic that is suitable for use in physics learning during distance learning and tested on 62 students. The feasibility test for learning media on global warming material was validated by media experts, material experts and learning experts using a validation test questionnaire. Then the trial was conducted with a number of students at the high school level. The expected result is that this learning media is feasible and effective for use in physics subjects at the high school level.
Evaluation of Blended Learning Program Physics of Mechanical Wave Materials Using CSE-UCLA Model
Authors: Sriwati  , Delina M , Supriyati Y 
Published: October 2021

Abstract
This study aims to obtain an overview of the blended learning program for physics subjects in mechanical wave material during the covid-19 pandemic, and to find out the supporting factors and obstacles so that they can be projected into solutions that are adaptive to the needs, availability and skills of students. The research method used is qualitative with an evaluative approach to the CSE-UCLA model. The subjects of this study were students of class XI IPA-1 and XI IPA-2, totaling 64 people at SMA Negeri 1 Timpah, Timpah Village, Central Kalimantan, Indonesia. Data were collected through questionnaires, interviews, observation and documentation. The data analysis procedure used Milles & Hubberman model analysis, including data reduction, data presentation, and drawing conclusions. Furthermore, the data and research findings were triangulated to check the validity of the data. The results of the program evaluation research from system assessment components, program planning, program implementation, improvement programs, and certification programs overall show that the physics blended learning program at SMA Negeri 1 Timpah supports the government’s policy in responding to the COVID-19 outbreak to learn from home, which is relevant to the supporting factors and obstacles.
Design of Massive Online Simulation (MOS) on kinetic theory of gases
Authors: Priane W T , Wibowo F C , Delina M 
Published: October 2021

Abstract
The purpose of this study was to design a Massive Online Simulation (MOS) to describe the behavior of gas particles to make it easier for students to understand the microscopic kinetic theory of gases. This research is a type of development research (Research and Development) with the ADDIE model consisting of analysis (analysis), design (design), development (develop), implementation (implement) and evaluation (evaluate). But, in this study, researchers only use the initial stage is the stage of an analysis and d design. The result of this research is the design of Massive Online Simulation (MOS) learning media on a gas kinetic theory which discusses monatomic, diatomic and polyatomic sub-materials, in which there is a main display menu, start menu, material menu, simulation menu and quiz menu that can be used. Students for learning the kinetic theory of gases.
Dissemination of GOOPI (Game Open Online Physics Instructional) to Sparking Innovation in Education
Authors: Wibowo F C , Sanjaya L A , Robby D K , Ahmad N J , Darman D R , Alizkan U , Fathurohman C , Prahani B K , Kurniawan B R 
Published: October 2021

Abstract
This study of dissemination of GOOPI (Game Open Online Physics Instructional) on page https://goopi.id/ (use UC browser) to sparking innovation in education. The method of the study is the Interactive Lecture Demonstration (ILD) approach, the ILD stages are carried out with three stages of activities, namely preparation, implementation, and evaluation. Dissemination with training for physics teachers who are members of the Physics Subject Teacher Meeting (PSTM) from a province in the west of Indonesia and Malaysian Teacher Association. The participants of this dissemination were 120 physics teachers for the first meeting and 86 teachers for a second meeting with GOOPI. The results of the study in the form of this dissemination were obtained information that physics teachers experienced in accessing and developing physics learning media. The results of the questionnaire responses to GOOPI with average 2,90 very good category of dissemination obtained information that GOOPI is effective for media for learning physics during the Covid-19 epidemic. The suggestion in this study is that dissemination training should be done frequently in order can provide skills or expertise that are not too complicated but are widely applied and needed by physics teachers.
Trends of Flipped Classroom Studies for Physics Learning: A Systematic Review
Authors: Amanah S S , Wibowo F C , Astra I M 
Published: October 2021

Abstract
This study focused to review the trends of the Flipped Classroom (FC) studies for physics learning. This review seeks to address the overall trends of the existing studies, contribution of integrated model or strategy and media into flipped classroom approach, the advantages of flipping classroom for physics courses, and the challenges of these studies. This structured review examined 33 article journal about flipped classroom for physics learning. The obtained data were analyzed using content analysis method. It was found that the studies in this field were generally carried out at undergraduate students, which pure flipped model, used discussion method and institution website for online media. The implementation of flipping classroom approach in a physics course yielded positive impact on student achievement when compared to traditional classroom. On the other hand, some challenges were identified, such as students’ challenges, teacher challenges, and technical challenges.
Problem Solving Ability of Distance Education Student on Electrostatic Topic
Authors: Safitri H , Hamidah I , Setiawan W , Kaniawati I 
Published: October 2021

Abstract
In this paper, we present the result of a study on the identifying problem-solving ability on distance education students’ physics. Descriptive-qualitative is used for method of research. The subjects of the study were in-service students’ physics of distance education. Sample were 19 students from all of student taking electricity and magnetism course in term 2019/2020. Essay test of electrostatics problem solving is used for collecting data technique. Test of problem solving is given at the beginning of the course in asynchronous tutoring of electric and magnetic cores. The finding of the study indicated problem solving ability of in-service students’ physics of distance education are categorized low (44,56%) in solving the problems. Therefore, it is necessary to make efforts to improve students’ ability to solve problems, through asynchronous tutorials by applying problem-solving strategies in interactive discussion and collaborative work in groups.
Development Of Android Physics Applications (APA) As Learning Media On Dynamic Fluid Concepts
Authors: Fathurohman C , Wibowo F C , Iswanto B H 
Published: October 2021

Abstract
Android is one of the learning media based on 21st-century learning styles. Android is open source and provides opportunities for users to develop other application features as needed. This study aims to create Android-based physics learning media using the Smart App Creator on Dynamic Fluid material. Media is developed using the methods of research and development R&D (Research and Development) Model FODEM (Formative Development Method) consisting of Need Analysis (NE), Implementation (I), and Formative Evaluation (FE). The results of the validity of the Android Physics Applications (APA) media obtained an average score of 83% in the very feasible category, while the results of the limited trial of students obtained an average score of 82.1% with the very good category. Based on these results, it can be concluded that the Android Physics Applications (APA) media can be used as a learning medium in the classroom. The development of Android-based Physics Applications is expected to be an alternative for educational institutions or educators to develop learning media that use multimedia.
Development of Educational Adventure Game on Fluid Physics Material
Authors: Muliyati D , Wahdaniyah N , Bakri F 
Published: October 2021

AbstractAn educational game is a form of technological progress that can be implemented in the field of education. This article describes the results of research on the development of educational games that can be used as an alternative mentoring for students. The method used in this research is the Research and Development (R&D) method with the ADDIE approach, which includes five stages, namely Analysis, Design, Development, Implementation, and Evaluation. An HTML5-based educational game has been created using Articulate Storyline 3. This educational game contains a person’s journey with the background of applying static and dynamic fluids and has several levels containing fluid for the next round. Material experts and media experts have validated the educational games produced. Experts provide a comprehensive opinion on all aspects assessed.
Permittivity Measurement Using the Resonance Circuits
Authors: Santosa I E 
Published: October 2021

Abstract
A pair of LC circuits has been used to demonstrate the resonance condition of electromagnetic waves. The first circuit comprises of an inductor, a capacitor and a power supply; while the second pair employs an inductor, a variable capacitor and a neon bulb. The same inductance is applied in both circuits. The variable capacitor is a parallel plate capacitor. By varying the capacitance in the second circuit, we achieve the resonance condition as indicated by the lit neon bulb. By doing so, we observe the equal oscillation frequency in both, the first and second circuit. The condition is then used to obtain the permittivity of air to be (6.1±0.2) x10-11 F/m.