Class Of Media Research Articles

MXene and functionalized graphene hybridized nanoflakes based silicone-oil nanofluids as new class of media for micro-cooling application

The major challenge of the current and future miniature compact high-tech electronic devices is thermal management. Micro-scale cooling is one of the promising thermo-fluidic implications possess a great potential in this cutting-edge research area. In this research work, newly emerged MXene (Ti3C2) and functionalized graphene (f-Gr) hybrid nanoflake is implied for the first time in the preparation of Silicon oil (Si-oil) based heat transfer media (MXene:f-Gr/Si-oil hybrid nanofluid) for the micro-scale cooling application. This research concentrates on development, characterization, thermal stability and thermal properties evaluations of new class of hybrid (MXene:f-Gr/Si-oil) nanofluids of three different concentrations of MXene and f-Gr hybrid nanoflakes. The thermal conductivity of the as produced MXene:f-Gr/Si-oil hybrid nanofluids is measured (up to 250 °C) by a Transient Hot Bridge (THB) 500 (Linseis, Germany, current 5 mA, heater-power 18 mW) with Hot Point Sensor (HPS). The measurement is conducted in a newly customized designed industrial grade hotplate heat loss protection chamber with a PID controller. Viscosity is evaluated by a Rheometer with varying temperature of 25 °C from 25 to 125 °C. Optical absorbance is measure using PerkinElmer Lambda 750. The optimum thermal conductivity enhancement is acquired about ∼68% for the MXene and f-Gr hybrid nanoflakes concentration of 0.02 wt% over the pure Si-oil base fluid at 200 °C. The viscosity of MXene:f-Gr/Si-oil hybrid nanofluids is revealed to be autonomous of adding the MXene and f-Gr hybrid nanoflakes into the Si-oil base fluid. However, viscosity of hybrid nanofluid samples is decreased by ∼36% within the increase of temperature from 25 to 50 °C. MXene:f-Gr/Si-oil hybrid nanofluid sample of concentration 0.02 wt% shows the thermal stability up to ∼393 °C (∼14% enhancement over the Si-oil). This significant improvement is advantageous for the cooling of future high-tech electronic systems. This subsequently increases thermal energy acquisition which is valuable for various other applications.

Temperature-dependent ultrafast solvation dynamics of choline chloride-based deep eutectic solvent (DES) and hydroxyl functionalized room temperature ionic liquids (RTILs): Exploring the difference in solvent response between DES and RTILs

The present study aims to provide a comprehensive understanding of the difference in solvent relaxation behavior between DESs and RTILs. For this purpose, dynamics of solvation have been investigated in a choline chloride-based DES and three hydroxyls functionalized ILs, keeping the hydroxyl functionalities same in both classes of media, so that the role of various inter/intra molecular interactions, including hydrogen bonding interaction on the solvent relaxation behavior can be understood. Fluorescence up-conversion spectroscopy (FLUPS) techniques coupled with time-correlated single-photon counting (TCSPC) techniques have been exploited to study the complete Stokes shift dynamics of a dipolar probe, coumarin 153 (C153) dissolved in these media. The solvent response functions generated from the complete dynamic Stokes shift data reveal a bimodal solvent relaxation behaviour having a very fast sub-picosecond and a relatively slower picosecond to sub-nanosecond solvation time component for both DES and hydroxyl ILs. The relatively slower solvation time component, which correlates with bulk viscosity of the concerned medium, is found to arise due to the diffusional motion of the constituents of both DES and hydroxyl ILs. However, temperature-dependent solvent relaxation measurements have revealed that at nearly isoviscous conditions, the solvent relaxation is much faster in the DES as compared to that in hydroxyl IL indicating the differences in solvent relaxation behaviour at the later part of the solvent response. Interestingly, when the early part of the dynamics is monitored, the amplitude associated with the ultrafast component for the DES increases significantly with the increase in temperature, whereas the same remains almost unchanged for the hydroxyl IL. This essentially indicates that even at shorter time scale, the process of solvent relaxation is considerably different for both DES and hydroxyl ILs. All these investigations have essentially demonstrated that despite having similar functionalities, different motions related to the solvent relaxation, operating at microscopic level in both these classes of solvents, are significantly different from each other.

PENINGKATAN KONTROL DIRI SISWA DALAM BERMEDIA SOSIAL MELALUI LAYANAN BIMBINGAN KELOMPOK DENGAN TEKNIK SELF MANAGEMENT

Research purposes: 1. Explaining the implementation of self-management technique group guidance can improve self-control in social media in class XI students of SMK Negeri 1 Kudus in the academic year 2022/2023. 2. To find out the increase in self-control in social media through group guidance on self-management techniques in class XI students of SMK Negeri 1 Kudus in the 2022/2023 academic year. Using the type of guidance and counseling action research (PTBK). The subjects of this study were 8 students of class XI with low self-control in social media. Methods of data collection by observation, interviews and documentation. Using qualitative descriptive analysis. The results of the study were the implementation of group guidance for two cycles with 6 meetings, applying self-management techniques with the stages of self-monitoring, self-evaluation, and giving reinforcement, elimination or punishment. There was a significant increase in student self-control in social media after being provided with services.

Improving Students' Learning Achievement Through Cooperative Learning and Padlet Application in Class XI MIPA 3

Chemistry learning is still less active which can be seen t students tend to be passive and less enthusiastic in learning. Students participate in learning activities with less enthusiasm and tend to wait for explanations from the teacher. One of the solutions used to overcome this is the cooperative learning model and the use of padlet application media. The purpose of this study was to find out the application of cooperative learning and padlet application media in class XI MIPA 3. The research sample was students in class XI MIPA 3 SMA N 1 Mirit, Kebumen consisting of 36 students. The research was conducted in 3 meetings. This type of research is quantitative research using descriptive analysis. Screening data through pretest and posttest value data. The results showed that learning using cooperative learning and padlet applications increased 30.94% of student achievement in class XI MIPA 3 SMA N 1 Mirit.

Improving Beginning Reading Abilty for Dylexian Children through Letter Puzzle Media in Class IV SDN 08 Sarilamak

This research is motivated by the problems that exist in the field, namely a child with learning difficulties who have difficulty in reading (dyslexia) who is in fourth grade at SD N 08 Sarilamak. Children have problems reading words with KV-KVK patterns so that children cannot follow the lessons at school. This study aims to improve children's ability to read early, especially reading words with a KV-KVK pattern. This research is an experimental study in the form of single subject research (SSR) with an A-B-A research design, the subjects in this study are dyslexic children with problems in early reading. especially in reading words with KV-KVK pattern. Data collection techniques in this study used test instruments and documentation of the ability to read words with KV-KVK patterns in children. Data analysis techniques in this study used analysis techniques under conditions and analysis between conditions.
 Keywords: Letter Puzzle, Beginning Reading, Dyslexia

Pre-service Teachers' Player Types and Their Relation to Self-efficacy With Digital Media

Gamification in educational contexts is often used to increase learners’ intrinsic motivation and their self-efficacy beliefs, two constructs which are positively related with each other as well as to scholastic outcomes. As self-efficacy beliefs are conceptualized context-specific, it is important to consider various users’ needs by adapting the learning environment to their corresponding gamification player types (GPT). Studies show that different GPT are characterized by different motivational aspects (intrinsically motivated, extrinsically motivated, disruptive GTP) Therefore, the aim of the present study is the examination of six different GPT according to the HEXAD typology (Tondello et al., 2016) for pre-service teachers regarding their distribution and their relation to self-efficacy with digital media. Altogether N = 75 pre-service teachers were assessed in terms of their GPT and their self-efficacy with digital media. It was hypothesized that the GPT distribution for pre-service teachers is comparable to the distribution reported by Tondello et al. (2016). Additionally, it was exploratively examined to what extent the different types of players differ in their self-efficacy with digital media. Results show that the GPT distribution in the current sample differs significantly from the expected distribution. Pre-service teachers seem to show specific GPT characteristics due to their profession. Concerning self-efficacy with digital media, pre-service teachers show a high subjective perception of their self-efficacy with digital media, but contrarious to the hypothesis no significant relation was found between GPT and self-efficacy with digital media. The results indicate that pre-service teachers feel confident to the use of digital media in class and that pre-service teachers form a group with a specific distribution of player types and therefore have specific needs in gamified learning environments. Due to the reported high amount of intrinsic player types, game design elements which promote intrinsic motivation should be in the focus of prospective analyses.

The Use of WhatsApp as a Learning Media in Class 5 Madrasah Ibtidaiyah During the Covid-19 Pandemic

This study aims to describe: (1) The use of WhatsApp as a learning medium during the Covid-19 pandemic (2) The obstacles that occur in the use of WhatsApp as a learning medium during the Covid-19 pandemic (3) The solutions to overcome obstacles in the use of WhatsApp as a learning medium during the Covid-19 pandemic. The research location is at MI Nurul Huda Ngampelsari Sidoarjo with the research subjects being grade 5 students. This research is qualitative in nature with data collection using observation, interviews, and documentation.

PENGEMBANGAN MEDIA PEMBELAJARAN APLIKASI MOLEK (MONOPOLI EKONOMI) BERSISTEM OPERASI ANDROID

The background of this research is about the importance of mastery of learning media for educators in delivering learning materials. The purpose of the study was to determine the feasibility of monopoly learning media, interest in learning and student responses. This research involves material experts and media experts. This research uses the type of research development or Research and Development (R&D) with the development model used is ADDIE The development model used is ADDIE which consists of 5 stages, namely Analysis, Design, Development, Implementation and Evaluation. MOLEK (Economic Monopoly) learning media is an Android-based mobile learning. To measure interest, use a questionnaire with a score of positive and negative statements, while to measure student responses the Guttman scale is used. Implementation of Economic Monopoly Learning Media Implementation of Economic Monopoly Learning Media in class XI students of SMA Muhammadiyah 3 Surabaya was carried out for 20 students. Based on the research results, the development of MOLEK (Economic Monopoly) Learning Media on Monetary and Fiscal Policy Materials in Senior High Schools is declared valid, practical and significant. Validation by material experts got a score of 84% while validation by media experts got a score of 84%. The analysis of student response data obtained a score of 91.5%, it can be concluded that the application of MOLEK (Economic Monopoly) learning media received a very decent response from students. Keywords : Android-based mobile learning, monopoly learning media, interest in learning and student responses

Surface Integral Equation Solutions for Electromagnetic Scattering From a Special Class of Anisotropic Media

We present a surface integral equation (SIE) solution for a special class of anisotropic media, whose permittivity and permeability are both symmetric full tensors with the same or multiple values. This kind of media is generated from the invisible cloaking or absorbing material of a perfectly matched layer (PML) design. A new derivation based on the potential functions is presented to obtain the closed-form Green’s function. Detailed and rigorous proofs of some vector identities are given for the first time. Special treatments are detailed to address the singularity of the anisotropic Green’s function for discretizing the SIE. Numerical experiments validate the accuracy, stability, and high efficiency of the proposed solution compared with the analytical solution or the finite element-boundary integral (FE-BI) method.

Implementasi Materi Kisah Nabi pada Mata Pelajaran Pendidikan Agama Islam Menggunakan Media Audio Visual di Kelas IV Sdn 008 Tambusai Utara Riau

The purpose of this study was to describe the learning objectives of Islamic Religious Education on the material of the story of the Prophet using audio-visual media in class IV SDN 008 Tambusai Utara Riau and its implementation and results. This research approach uses qualitative research with a case study type, carried out at SDN 008 Tambusai Utara, Jalan Pelajar Simpang Genjer, Tanjung Medan Village, North Tambusai District, Riau. Informants in this study were PAI teachers and 9 fourth grade students. While the data collection techniques by observation, interviews, and documentation. In this study using data analysis techniques, namely data reduction, data presentation, and drawing conclusions. The results showed that the first, the teacher's goal in using audio-visual media for the story of the Prophet in the subject of Islamic Religious Education in class IV SDN 008 Tambusai Utara Riau is to increase students' understanding of the subject of Islamic Religious Education. Therefore, with the existence of audio-visual media, the teacher hopes that it can encourage students' learning motivation, clarify and simplify the material in a simple way, and will be easy to understand. Second, the process of implementing the Prophet's story material on the subject of Islamic Religious Education using audio-visual media in grade IV SDN 008 Tambusai Utara Riau. the story of the Prophet, speakers, and worksheets. Third, the results of the implementation of the Prophet's story material in the subject of Islamic Religious Education using audio-visual media in class IV SDN 008 Tambusai Utara Riau, which has 9 students consisting of six boys and three girls, on average, fourth grade students get the results. learning well by obtaining a score frequency of 75-80 compared to before the teacher implemented audio-visual media as a learning tool for Islamic Religious Education, which scored below the KKM with a score frequency of 60-65.

News Text Learning With Tribunnews Instagram Account for 8th Grade Students

Online learning frequently employs tedious media, including news text learning. This study aims to describe the innovative use of learning media in class VIII B learning of news texts using the Tribunnews Instagram account at SMP 17 Agustus – 1 Muncar. This research is qualitative because the data are presented in the form of words. The method of research employed is descriptive research. The subjects of this study were eighth-grade B SMP 17 Agustus-1 Muncar students. With Instagram Tribunnews, the objective is to learn news text. Documentation is the technique used for data collection. The data processing technique used is a qualitative descriptive technique. The findings of this study indicate that learning with Instagram Tribunnews video media is superior and more engaging for students than learning with news sample text media alone. This can be seen in the improvement of student interactions over time. There were only students who did not have access to a reliable network, and there were students who were late for Zoom. However, the teacher has provided a solution for this.

Pengaruh Penggunaan Media Flash Cards Terhadap Penguasaan Kosakata Bahasa Inggris Anak Usia 4-5 Tahun di TK Percontohan Tahun Ajaran 2021-2022

The formulation of the problem in this study, among others, namely "Is there any effect of using flash cards media on English vocabulary mastery of children aged 4-5 years in Pilot Kindergarten?". This type of research includes True Experimental Design research, namely Posttest Only Control Group Design. The population in this study were all kindergarten children in group B in TK PILOT, totaling 50 children, consisting of 2 classes, namely B-1 totaling 25 children and B-2 totaling 25 children with a sample of class B-1 totaling 25 children. (15 women & 10 men) who were treated with tape recorder media. The instrument used in this study was a structured observation of children's English vocabulary mastery. After the data is collected, then the next step is to test the hypothesis using a one-party t test with a real level of = 0.05. Based on the data from the observation of the use of flash cards on the mastery of English vocabulary, it was found that the mastery of the children's English vocabulary was in the good category. Based on the results of observations of the use of tape recorder media on the mastery of English vocabulary, it was found that the mastery of the children's English vocabulary was quite good. This shows that the level of mastery of English vocabulary of children in the flash card media class using flash cards media is better developed than the children in the tape recorder media class using a tape recorder media. Based on the results of the t-test obtained 8.86 while 1.69, it can be concluded that there is a significant effect of the use of flash cards media on the mastery of children's English vocabulary in Santa Lusia Sei Rattan Kindergarten.

The Use of Smart Tree Learning Media to Improve Arabic Writing Skills for Class X

This study was structured with the aim of describing the improvement of students' writing skills by using the smart tree learning media in class X Man 1 Deli Serdang. This type of research is Classroom Action Research (CAR). This research was conducted in the even semester of TA. 2021/2022, i.e. in March-April. The subjects of this study were students of class X MAN 1 Deli Serdang which consisted of 25 students. The object of this research is the students' writing ability. This research data collection was collected using a test that had been given to the students. Based on the results of the student learning percentage test in the first cycle was 71.32% and the result in the second cycle was 81.08%. From the results of the comparison of the two cycles, there was an increase of 9.76%. The use of the Smart Tree learning media can improve students' Arabic writing skills in the "very good" category as evidenced by an increase in research results in each cycle. So it can be said that the use of smart trees can improve effective Arabic writing skills.

Pengaruh Penggunaan Media Foto dan Video Animasi Karikatur terhadap Kemampuan Peserta Didik dalam Memahami Teks Anekdot Siswa Kelas X SMA

This study aims to determine the effect of using photos and videos of animated caricature media on students in understanding anecdotal texts for class X SMA. This research method is quantitative with a descriptive approach and associative analysis. Data collection techniques, namely questionnaires and anecdotal writing tests. The study's results on the use of photo media in class X high school students, on average, were at a high level. A total of 35 students (48%) in the high category, 20 students (27%) in the medium category, and 18 students (25%) in the low category. On average, the use of animated caricature videos in class X high school students is in the medium category. A total of 20 students (27%) in the high category, 41 students (56%) in the medium category, and 12 students (17%) in the low category. Research on media of photos and videos of animated caricatures with the ability to understand anecdotal texts for class X high school students, on average, is in the high category. A total of 30 students (41%) in the high category, 29 students (40%) in the medium category, and 14 students (19%) in the low category.

IMPROVING ONLINE LEARNING THROUGH ZOOM MEETING MEDIA IN CLASS 2nd at SD MUHAMMADIYAH BANTUL CITY

This study aims to determine the improvement of online learning through Zoom Meeting media at SD Muhamadiyah Bantul City, especially grade 2nd in elementary school. This type of research is qualitative with a case study approach. Sources of data in this study were grade 2nd teachers, students and parents of grade 2nd at SD Muhammadiyah Bantul Kota. Data collection techniques using interviews, observation, and documentation. Data analysis used triangulation of data sources. The results showed an increase in student learning in the form of increasing student understanding in receiving subject matter, students enjoying learning more, teachers and students can interact directly through zoom meetings, foster student interest in learning, teachers can better understand the character of students, students can work on practice questions with good, and parents can unite student learning to be more optimal

Implementation of ICT (Information, Communication, and Technology) Based Fiqih Learning in Class XII of Madrasah Alyah Ar-Raudhatul Hasanah Medan

In order for the presentation of the material provided by the fiqh teachers to be more effective and efficient, it is necessary to apply learning that can motivate and stimulate students to be enthusiastic in learning. One of them is by utilizing ICT (information, communication, and technology) or ICT-based learning media (information, communication, and technology) or what we often call ICT (technology, information, and communication). This study aims to explain how the implementation of ICT-based learning media (information, communication, and technology) in the learning process of fiqh education in madrasah aliyah. This research method is qualitative research. The nature of this research is descriptive, namely regular decomposition analysis, so the whole concept of providing understanding and explanation to get a description of the results. The data analysis that the writer uses in this research is an analysis of the tracking process and systematic arrangement, field notes that the authors have obtained from interviews, observations and other materials so that the authors can report the results of the research. The results of this author's qualitative research are: (1) The implementation of ICT-based fiqh learning (information, communication, and technology) in class XII Madrasah Aliyah Pesantren Ar-Raudhatul Hasanah Medan City, (2) The implementation of ICT media (information, communication, and technology) focusing on Fiqh lessons in Class XII Madrasah Aliyah Pesantren Ar-Raudhatul Hasanah Medan City, (3) There are supporting and inhibiting factors in the implementation of fiqh learning by using ICT (information, communication, and technology) utilizing infocus media in class XII Madrasah Aliyah Pesantren Ar-Raudhatul Hasanah Medan City.

Implementation of the Group Investigation Cooperative Learning Model with Device Media in Indonesian Language Learning to Increase Student Activity in Class XI Science 4 State High School 1 Wajo

This study aims to increase student activity through the application of the group investigation cooperative learning model with gadget media in class XI Science 4 State High School 1 Wajo. This research is included in classroom follow-up research which refers to the CAR model by Kemmis, McTaggart, & Nixon which includes planning, implementing, observing and reflecting activities in each cycle. Action research in the form of Group Investigation syntax starting from identifying, grouping, investigation, organizing, and evaluating. The main data in the form of observations of student activity and syntax implementation. Data collection techniques with interview and documentation methods. Validation of data by triangulation method. Qualitative descriptive data analysis consists of three stages, namely data reduction, data presentation and conclusion drawing. The results showed that there was an increase in student activity during Indonesian language learning in class XI Science 4 State High School Wajo from Cycle I (60%), Cycle II (78%). Based on the results of the study, it can be concluded that the application of group investigation cooperative learning with gadget media in Indonesian language learning can increase student activity in class XI Science 4 State High School 1 Wajo.

PENINGKATAN MOTIVASI BELAJAR MATA PELAJARAN PENDIDIKAN AGAMA ISLAM DAN BUDI PEKERTI MELALUI MEDIA PEMBELAJARAN POWER POINT PADA PESERTA DIDIK KELAS V SEKOLAH DASAR

This study aims to determine the increase in motivation to learn Islamic religious education and ethics subjects through PowerPoint learning media in class V students of SD IT Wihdatul Ummah, Takalar Regency. The type of research used in this study was Classroom Action Research. The research was located at SD IT Wihdatul Ummah, Takalar Regency, with ten students as the subjects in class V. The instruments used were in the form of learning motivation observation sheets and PowerPoint media observation sheets. Furthermore, the analytical technique used in this study was observational data analysis on learning motivation. The study concluded that media exposure significantly increased students' motivation to learn about Islamic religious education and ethics from cycle to cycle. The PowerPoint media can improve student learning motivation in grade V students of SD IT Wihdatul Ummah, Takalar Regency.

Manajemen Guru dalam Implementasi Program Keagamaan di SD Istiqomah

Teachers are a key to success in education. Teacher management really needs to be considered so that all forms of success are expected to be achieved. Like the existing programs in schools, they can be successful because there is a good teacher management in education. Moving on from that, the writer wants to know how teacher management is in implementing religious programs at Al Istiqomah Elementary School. 2. What are the supporting factors for education management in the implementation of religious programs. At SD Al Istiqomah 3. The toughest obstacle in an education management is in implementing religious programs at SD Al Istiqomah Bandung. In our research, we use a descriptive qualitative approach. namely collecting data based on the factors that support the object of research, then analyze these factors to find the role. Data collection techniques used are interview techniques, observation techniques and documentation study techniques. The data collection techniques used by the researchers in this study consisted of: observation, and documentation. At SDIT Istiqomah Lembang there are several forms of evaluation of activities that are directly related to religious activities including: Each student has a daily control book, daily grade book, grade book report cards, certificates of good conduct. The implementation of the religious activity program at SDIT Istiqomah Lembang is carried out through several activities which are divided as follows: Daily religious program, Monthly religious program, Annual religious activity. Teacher Education Methods at SD Istiqomah 1. Use of interesting learning media in class 2. Tahassus method.

Increasing Side-Style Style Side Shot Learning Outcomes using The Play Approach and Modification Media in High School Students

This study aimed to determine the improvement of sideways style bullet repulsion learning outcomes using the play approach and modified media in class VII students of YPI Amir Hamzah Middle School Medan in the 2018/2019 academic year. The subjects in this study were students of class VII-I with a total of 24 students. The method used in this research is Classroom Action Research using a quantitative approach. The results of the study: (1) From the initial data, the sideways style shot put the overall attitude of 176 with an average of 7.33, obtained as many as seven students (29.17%) had reached the level of mastery learning while 17 students (70.83 %) did not meet the expected classical completeness criteria, namely 75% (2) From the first cycle learning outcomes test, the total number of attitude results assessed was 204 with an average score of 8.5 as many as 17 students (70.83%) have reached the level of mastery learning while seven students (20.17%) have not reached the level of completeness of learning. However, it has not met the expected classical completeness criteria of 75% (3). From the second cycle of learning outcomes tests, the total number of attitude results assessed is 224, with an average of 9.33. As many as 21 students (87.5%) have completed the learning, and three students (12.5%) are still not complete. Based on the results of these tests, there was an increase in the number of students who had achieved mastery of learning and met the criteria for classical completeness, namely 85%. In this case, it can be seen that there was an increase in the value from cycle I to cycle II. The conclusion of the study is that the application of the play approach and modified media can have an influence in an effort to improve the learning outcomes of sideways style shots put in class VII-I SMP Amir Hamzah Medan in the 2018/2019 academic year.