bluuebunny/crossref_metadata_2025 huggingface dataset:
Strengthening the Twenty-first Century Skills of University Students in Facing ASEAN Economic Community
Authors: Berlian Mery , Vebrianto Rian , Syafaren Alaniyah
Published: January 2022

This study aims to determine the strengthening of the 21st Century Skills of UPBJJ Pekanbaru and Pangkal Pinang students in dealing with the ASEAN economic community (MEA). The 21st Century Skills strengthening study was motivated by the low competition in economic politics in Indonesia. The study involved 379 students selected based on study programs at the Pekanbaru Open University and Pangkal Pinang. Data in the form of opinions and statements were collected using a questionnaire in the form of a questionnaire and essay. Data obtained were analyzed qualitatively and quantitatively. The results showed that UPBJJ Pekanbaru and Pangkal Pinang students were qualitatively ready to perform 21st-century skills, including digital era literacy, inventive thinking, memorable communication, high productivity, and spiritual norms and values. Based on quantitative data, there is no significant difference in strengthening the 21st Century Skills of UPBJJ Pekanbaru and Pangkal Pinang students.
Merdeka Belajar in the Point of View of Learning Technology in the Era of 4.0 and Society 5.0
Authors: Ismaya Bambang , Perdana Indra , Arifin Ardian , Fadjarajani Siti , Anantadjaya Samuel PD , Muhammadiah Mas'ud
Published: January 2022

The purpose of this article is to describe the autonomous perspective on learning in the Industrial Revolution 4.0 and Society 5.0 eras. This new era provides both benefits and consequences for the eroding of human values. To minimize adverse effects while optimizing its consumption. The point of the study was to define the concept of Merdeka Belajar in the Industrial Revolution 4.0 and Society 5.0 eras. The descriptive-analytic method was combined with a literature review in this investigation. The study's findings highlight a need to strengthen technology's position in the industrial revolution 4.0 in order to foster a more prosperous and civilized human life order, as illustrated in Community Model 5.0. The Indonesian people, in particular, must get familiar with critical educational patterns in order to be prepared to enter the industrial revolution 4.0 and Society 5.0 eras.
The Effect of Online Learning Process on Speaking Skill
Authors: Wahyudi Eko , Sukma Hanum Hanifa , Mustadi Ali
Published: January 2022

This study aims to find out students' speaking skills during online learning. The research method used is quantitative research with ex-post facto research type. The research population was PGSD students second-semester which amounts to 316 people. The research sample was taken using a purposive sampling technique, with 118 students. Methods of data collection using a questionnaire and observation in an instrument. The data analysis technique used is descriptive analysis and inferential analysis. The results showed no effect of online learning on students' speaking skills. Students remain skilled at speaking even in online learning because it is influenced by the mindset of students so that they have the courage and high initiative to respond to the stimulus provided by the lecturer. The ability of lecturers to package impressive learning can also increase learning motivation so that students are more confident in speaking and expressing opinions.
Responsibility and Character Education Based on School Culture
Authors: Setiyono Setiyono , Fawzia Yessica Al
Published: January 2022

The purpose of this research was to describe and analyze the planning, implementation, and evaluation of responsible character education based on school culture. A qualitative approach is taken in this investigation. An SMP Muhammadiyah Plus Salatiga sample was used in the analysis. In order to gather accurate information about the subject matter, the authors employ qualitative research methods, such as interviews and documentation. There are two ways to implement educational character education in the classroom: first, incorporate it into the school's curricula and rules, then spread the word to the students and staff. Character education for responsibility is carried out by incorporating the character of responsibility into self-development programs, subjects, and school culture. 2. This includes classroom and school-wide activities in which character values are taught and practiced. Students' attitudes are assessed as a means of evaluating responsibility character education.
The Pedagogics Competence of Indonesian Language Education Students as Teacher Candidates in Microteaching
Authors: Sarmadan Sarmadan , Hali Fitriyani
Published: January 2022

The pedagogics competence of Indonesian language education students as prospective professional teachers is needed to improve the quality Indonesian language learning process. This study aimed to describe the pedagogics competence of students as prospective professional teachers in the Indonesian language education study program. This research uses a descriptive method. This study's subjects were all seventh-semester students in the Indonesian language education study program who programmed microteaching courses for the 2020/2021 academic year, totalling 34 students. The research data collection uses a pedagogic ability test through a google form. The percentage of students who have pedagogic abilities is reviewed by each indicator, namely: Indicator I of 11.76%, indicator II of 72.06%, indicator III of 57.35, indicator IV of 23.53, indicator V of 61.76, indicator VI of 79.41, indicator VII of 64.71, indicator VIII is 48.53, and indicator IX is 58.82. Overall, the percentage of achievement indicators obtained is 53.10%. So, it can be concluded in this study that the pedagogic ability of the seventh-semester students in the Indonesian language education study program is in a low category.
Developing Academic Writing Module to Reduce Plagiarism
Authors: Suryani Hilma , Apriani Eka
Published: January 2022

Plagiarism has become a stressful problem in the academic world. In higher education, students must write a scientific paper that is free from plagiarism. Many referencing styles are offered to enable the writers to produce the proper scientific works. This study aimed to produce a module on academic writing for English department students. The module focused on writing citations based on APA style references, including in-text citation, paraphrasing, and summarizing. It was a research and development study that involved fifth-semester students. The samples were selected purposively. The data were collected by using interviews, questionnaires, and tests to see the product's validity, practicality, and effectiveness. The data gathered were analyzed qualitatively and quantitatively. Based on the study results, it was found that the validity of the product showed a very high category (0.92). Practicality consists of three aspects, ease, efficiency, and usefulness, categorized very high at small groups (0.85) and field tests (0.87). The module's effectiveness was seen from the gain score, which is 0.4. This score indicated the medium progress made by the students after having the treatment.
Softball Catching Learning Model Development for High School Students
Authors: Faridah Eva , Rubiyatno Rubiyatno , Adam Syahril , Suganda Mikkey Anggara
Published: January 2022

The study aims to create a softball throw and catch learning model for high school students. Based on the findings of observations and interviews, it is possible to conclude that students struggle with throwing and catching techniques on softball material. Physical education teachers face a challenge in providing appropriate learning methods due to a lack of variety in applying the learning model. The research and development (R D) method was used in this study, with six stages of development. The following data analysis techniques were used in this study: This study employs both quantitative and qualitative descriptive data analysis. Based on the findings of this study, ten throwing and catching learning models with various variations have been developed. The effectiveness test was performed with the T-test to determine the effectiveness of the developed product. The t-test value, tcount = 31,647, was then obtained. The value of ttable obtained with confidence level = 0.05, dk = (n-1) = 30 – 1 = 30 was 2.1098. As a result, tcount exceeds ttable (tcount = 31,647 ttable = 2,093). Based on the test criteria of tcount ttable at =0.05 dk = 17, the developed model is very effective for use, particularly at the high school level.
Attitudes towards Thai English: Indonesian Pre-service Teachers Lenses During Teaching Practicum in Thailand
Authors: Fauziyah Firda , Hidayati Arini Nurul , Abdullah Fuad
Published: January 2022

Over the last few decades, World Englishes have shifted the paradigm of how both native and non-native speakers view English as a lingua franca. This paradigmatic shift has attracted scholars to conduct a plethora of investigations on the roles of English as an international language. However, scrutinizing the pre-service teachers’ attitudes towards Thai English amid their teaching practicum in Thailand remains under-explored, notably viewed from Indonesian perspectives. This study investigated Indonesian pre-service teachers’ attitudes towards Thai English within their teaching practicum in Thailand to fill this gap. Four Indonesian pre-service teachers performing teaching practicum at diverse Thai schools were recruited as the participants. The data were garnered through semi-structured interviews and analyzed with qualitative data analysis framework. The findings revealed that Thai English was less intelligible. Besides, they contended that Thai English enables them to experience emotional shifts. Eventually, Thai English has adapted from the English and Thai language. With these in mind, understanding and employing Thai English practically offers the Indonesian pre-service teachers another variety of English to communicate in the classroom.
Analyzing Elementary English Teachers’ Pronunciation Errors: Are We Intelligible?
Authors: Febrianto Dedi
Published: January 2022

Error analysis on students’ language performance has been massively discussed, yet few studies focused on teachers’ errors. Meanwhile, one of the main causes of students’ errors is the errors transferred from teachers. As the learners used to imitate their teachers sounds’ production, EFL teachers need to minimize errors when teaching at elementary school concerning the learners’ best period to acquire and learn a foreign language. The present study investigates EFL teachers’ pronunciation errors, specifically to find out the forms and causes of pronunciation errors in segmented vowels produced by the teachers. The research participants are 20 English teachers selected from various public and private elementary schools in Yogyakarta who were invited to pronounce 62 English words. The teachers were also required to fill out a questionnaire to find out external factors which are assumed can trigger the errors. The findings delineated that the teachers produced various forms of pronunciation errors in English vowels. The causes of errors lie in interlingual transfer, intralingual transfers, pronunciation differences between graphemes and sounds, hypercorrection, and words similarity. The external factors are also scrutinized, which include educational background and teachers’ lack of English practice. The study suggests that elementary EFL teachers in Indonesia should improve their pronunciation by frequently practicing and having intensive pronunciation training to teach better English to their learners.
Anti-Radicalism Education for Millenial Generations in Islamic Higher Education
Authors: Zamroni Zamroni
Published: January 2022

This study aims to analyse and understand the importance of anti-radicalism education provided to millennial generation students in East Kalimantan. This study uses a qualitative case study approach. The researcher tries to reveal the reality of the meaning in the anti-radicalism education field at three universities in East Kalimantan, including IAIN Samarinda, STIT Balikpapan, and STAI Sangatta East Kutai. The researcher conducted interviews, observations, and documentation to obtain information about the themes studied. Data analysis was carried out circularly, starting with data presentation, data reduction, and concluding. The results show that anti-radicalism education is very much needed in East Kalimantan. Considering that the area has good potential resources, the community is very heterogeneous. The area is used as a hiding place for terrorists, and the anti-radicalism education aims to neutralise the ideas of radicalism that continue to grow.
A Narrative Inquiry of an Indonesian Prospective Teacher’s Teaching Experiences: Probing Language Teaching Awareness
Authors: Ainussamsi Zehan Agustia , Hidayati Arini Nurul , Pertamana Dede , Abdullah Fuad
Published: January 2022

This narrative inquiry aims at exploring the development of language teaching awareness experienced by a prospective teacher during teaching practicum. In this respect, the study provided insight for student-teachers to have a better understanding of their language teaching practice under certain kinds of circumstances. The participant of this study was a student-teacher majoring in English Education Department at Siliwangi University, Indonesia. She had already conducted a teaching practice in one junior high school in Tasikmalaya, West Java, within 2 months of teaching. The collected data from personal diaries written during the period of teaching, semi-structured interviews, and open-ended questionnaires were being processed qualitatively. The findings reported four primary themes emerging throughout the scrutiny of the development in language teaching awareness, namely (1) the dynamic feeling towards the language teaching practice, (2) the adaptability towards the language teaching activities in certain kinds of circumstance, (3) the ability to adjust with diverse teaching circumstances, (4) realization of the pedagogical implication of teaching beliefs and practices. Briefly stated, language teaching awareness explored through self-awareness can promote self-reflection, self-regulation, and self-evaluation.
Anti-Corruption Education Model in Islamic Universities
Authors: Firman Firman , Kaso Nurdin , Arifuddin Arifuddin , Mirnawati Mirnawati , Ilham Dodi , Rahim Karim Abdul
Published: January 2022

Anti-corruption education in Islamic religious colleges aims to provide students with sufficient knowledge about the ins and outs of corruption and its eradication and instill anti-corruption values. This descriptive qualitative research with the literature study method examines various reference books, state regulations, and journals relevant to the research topic. This study captures and describes the concepts and models of anti-corruption education management in religious colleges. The student anti-corruption movement is expected to appear at the front as a driving force. Students are supported by their basic competencies: intelligence, critical thinking skills, and the courage to state the truth. This study found that there are three models of anti-corruption education at PTKI (religious universities) in Indonesia, namely 1) integrated anti-corruption education in courses, 2) integrated anti-corruption education in student activities, and 3) cultural habituation and anti-corruption character in the academic community.
Transformational Islamic Education Ideas Abdurrahman wahid's perspective
Authors: Samsudin Samsudin , Isana Widiati , Astri Yasmin
Published: January 2022

This article examines Abdurrahman Wahid's (often referred to as Gus Dur) views on transformative Islamic education. This is a qualitative study conducted in a library. This research compiled a collection of Gus Dur's writings on transformative Islamic education. The data collection technique used in this study was content analysis. In comparison, the authors used procedures for compiling, connecting, reducing, presenting, and withdrawing data during the data analysis process. According to Abdurrahman Wahid's thinking, this study discovered two concepts of transformative Islamic education: peace education and multicultural education. In informal education, Gus Dur's idea of peace education can be implemented through a sociopolitical lens through cooperative learning strategies. In contrast, in non-formal education, it can be implemented through dialogue and deliberation strategies. Multicultural education is Gus Dur's vision of education to foster heterogeneity in Indonesian society. Because, as Gus Dur points out, Indonesia is made up of numerous ethnic groups, tribes, cultures, and religions. As a result, the Indonesian people face the possibility of conflict over religion, ethnicity, and culture.
Character Education Value In Short Story “Ambe Masih Sakit” Written By Emil Amir
Authors: Asdar Asdar , Angreani A. Vivit , Lutfin Nursamsili , Hamsiah Hamsiah -
Published: January 2022

This study aims to describe the values of character education contained in the short story "Ambe Masih Sakit" by Emil Amir. This research is a qualitative descriptive study. The subject of the research is the speech or dialogue that comes from the actors in the short story "Ambe Masih Sakit" by Emil Amir which was quoted from the Kompas newspaper published on March 2012. The data that was the target of the study were obtained using listening and note-taking techniques. The results of the study show that the values of character education include honesty, tolerance, discipline, hard work, independence, democracy, curiosity, friendly/communicative, social care, responsibility, and religion. This is evidenced by the speech or dialogue that describes the figure of a man named Upta who grows and develops in living his freedom in living together with other people. It is illustrated that Upta respects differences in religion, ethnicity, ethnicity, opinions, attitudes and actions of people who are different from himself. Upta is described as a man who works hard and is responsible for his family
The Initiatives to Strengthen Teachers' Online Learning Skills During the Covid-19 Pandemic
Authors: Sahudra Tengku Muhammad , Ariska Raja Novi , Nursamsu Nursamsu
Published: January 2022

This study aimed to ascertain measures to enhance teachers' ability to teach online during the covid 19 pandemic. Action research is the research approach used in this type of research. The research was qualitative, describing the efforts to improve teachers' abilities to incorporate online learning into the teaching and learning process. This study was conducted at the MGMP for geography teachers at the senior high school and vocational high school level in Aceh Tamiang Regency. This study shows that teachers' competency in online learning is increasing, with the first cycle having a value of 0.45 per cent and the second cycle having a value of 0.80 per cent; hence, the two cycles predict growth in instructors using online learning in the future. Teachers can utilize a variety of technology-based online learning platforms, including Google Classroom, Edmodo, Quizizz, and Schoology.
Development of Discovery Learning-Based Science Supplementary Textbooks to Improve Students' Creative Thinking
Authors: Rosa Adya , Ambarita Alben , Sabdaningtyas Lilik , Yulianti Dwi
Published: January 2022

Students' inability to think creatively in scientific classes is the impetus for this study. An appropriate Discovery Learning-based Science Supplement Textbook is the goal of this research, as is a description of its ability to boost students' creative thinking on Heat and Transfer Themes. Borg Gall's theory is the basis for research and development. The study's target audience was fifth-graders in Metro Timur District elementary schools. Using the purposive sampling method, 28 students from class V were selected for the study. Mixed quantitative and qualitative methods were used in the data analysis process. The Discovery Learning-Based Science Supplement Textbook was found to be practicable and useful in enhancing students' creative thinking abilities. The validation results of material experts, media experts, and linguists may conclude that the project is feasible. According to the experimental class's pre-and post-test scores of creative thinking, the category "Effective Enough" achieved an N-gain of 61%. In general, the students' responses indicated that the Discovery Learning-based Science Supplementary Textbook could help students think more creatively, according to the findings.
Evaluation of Inclusive Education Program at Elementary Schools
Authors: Isna Wijaya Nuroel Tri , Ruqaiyah Ruqaiyah , Zulaikha Siti
Published: January 2022

The purpose of this study is to describe the program's effectiveness using a qualitative descriptive method by examining the context, input, process, and product of an inclusive education program at an elementary school in Palembang. Interviews, observation, documentation, questionnaires, and focus group discussions are all used to collect data. The principal, deputy principal for curriculum, the education office of Palembang city, class teachers, the South Sumatera Provincial Education Office, and Guardians of Special Needs Students served as informants for the research. The findings indicated that the contextual evaluation did not consider the program's needs and objectives. There are flaws in the way organizers and implementers analyze program needs in terms of context. The outcome of the input evaluation indicates that it is not adhering to the components of inclusive education implementation. The process evaluation revealed that the performance adhered to child-friendly schools in some areas, most notably in implementing the teaching and learning process. While some product evaluation results have been successful, critical considerations must be significantly improved, beginning with program planning, monitoring, and reporting. In general, the program evaluation components indicate that schools have demonstrated a high level of commitment and consistency in implementing the program since 2013. This needs to be improved by the guidelines for inclusive education implementation.
Strategic Management in Quality Improvement at State Madrasah
Authors: Mustapid Mustapid , Syafaruddin Syafaruddin , Wijaya Candra
Published: January 2022

This study aims to analyze strategic planning, policy implementation and evaluation of quality improvement programs at a State Madrasah Aliyah Medan. This study uses a qualitative approach with data collection techniques through interviews, observation and documentation. While strengthening the validity of the data from research findings, the use of data validity standards based on Lincoln Guba consists of credibility, transferability, dependability, and confirmability. The results of this study indicate that; 1) strategic planning in quality improvement is carried out by deliberation and teamwork to formulate the madrasa's vision and mission, analysis of the internal environment of the resources owned by the madrasa and the external environment of the madrasa environment both geographically, socio-culturally and economically, analysis of strategy selection and the key to success appropriate, and strategy selection; 2) Implementation of madrasa policies in quality improvement is carried out by implementing education quality improvement programs and adopting policies to carry out continuous process improvements, establishing quality assurance and quality standards for quality improvement, creating a madrasa culture or culture, making organizational changes and maintaining good relations with stakeholders both central government, regional and community; and 3) Evaluation of the quality improvement program is carried out through monitoring all the results of planning and implementation, measuring the performance of individuals and madrasah institutions, compiling reports on the implementation of activities and taking corrective steps.
The Effect of Principal's Leadership and Participation of the Industry World on the Quality 0f State Vocational Schools
Authors: Wiratmoko Aris , Ahmad Masduki , Rahmawati Desi
Published: January 2022

The quality of students graduating from vocational high school can be improved if the principal's leadership and increased industrial participation are supported. The purpose of this study is to analyze. This study employs a quantitative approach and path analysis techniques in conjunction with a survey method. The data collection instrument is a questionnaire. Instruments were thoroughly tested prior to their use in research. Validity and reliability tests are conducted on the instruments. The data analysis in this study was conducted using both descriptive and inferential statistical techniques. This study was conducted at seven State Vocational High Schools in Serang City. Principals' leadership and industrial participation, according to research, have a direct effect on school quality. The principal's leadership directly impacts the school's quality. Industry involvement has a direct positive effect on the quality of education. Principal leadership has a positive effect on labor participation directly. This research implies a shift in perspective regarding the quality of State Vocational Schools in Serang City, particularly at the leadership level as a manager accountable for the graduates' quality. School leaders ensure that collaboration with industry is demonstrated through participation in the development of industry-related curricula.
Optimizing the Cooperation Between Teacher and Parents in the Implementation of Studying From Home for Early Childhood
Authors: Aryani Nini , Wilyanita Nopa
Published: January 2022

Early childhood education is being conducted at home in the event of a Covid-19 pandemic. Parents in the WhatsApp Group receive teaching materials from the teacher via this method of instruction. As a result, teachers and parents must work together to ensure that children at home are still receiving an education that is tailored to their individual needs. This study used a qualitative approach based on interviews with teachers and parents from five Aisyiyah Bustanul Athfal Kindergartens located in Pekanbaru City. In the study, teachers and parents found that a positive attitude in communication patterns between them. They can lead to good patterns of cooperation, with parents being able to guide and motivate their children while implementing learning at home and being directly involved in learning with children by accompanying their children while studying.
Analysis of Learning Interests and Student Responses in Online Learning Using E-Learning
Authors: Uliyandari Mellyta Uliyandari , Latipah Nurlia , Handayani Dewi
Published: January 2022

This study aims to analyze interest in learning and student responses in online learning using e-learning media in Universitas Bengkulu. The method used in this research is descriptive qualitative. Data collection was carried out using a questionnaire distributed using google form. Questionnaire analysis was carried out using a mini step application with the Rasch model. The population in this study was 193 science education students with a total sample of 64 people. The results showed that the interest in learning science education students in general chemistry 2 had a conversion value of 78.56, which was in the high category. Meanwhile, the student person towards online learning using e-learning media also showed good results, with a conversion value of 60.42, which was in the good category.
Ampelographic presentation of some indigenous grape varieties of Greece
Authors: Папаконстантину Л.Д. , Пасхалидис Х.Д. , Сотиропулос С.С. , Таскос Д.Г. , Пасхалидис Д.Х. , Чамурлиев Г.О.
Published: January 2022

Технические сорта винограда Греции представляют собой сокровище для ценителей вина во всем мире из-за своей уникальности. Здесь возделываются сотни сортов для производства вин любого типа, на любой вкус, что дает возможность рассматривать страну как одного из самых «разноплановых» производителей вина, а греческие виноградники - одними из самых богатых на сортовое разнообразие в мире. В статье представлено ампелографическое описание некоторых широко известных греческих технических сортов винограда.

Greek indigenous wine grape varieties are treasure for wine lovers around the world because of the diversity and uniqueness of Greek wines. There are hundreds of indigenous wine varieties in Greece, making the country one of the most "diverse" wine producers, and Greek vineyard - one of the richest in the world. The local wine varieties of Greece are an irresistible arsenal for wine production of every type and style, to suit any taste. The paper presents the ampelographic description of some well-known local wine varieties of Greek growing regions.
Prevalensi dan Penyebab Ketidakpatuhan Perawat dalam Mematuhi Prosedur Tindakan Keperawatan di Rumah Sakit
Authors: Yuliastuti Wiwid , Masruroh Eny , Anggraini Ria
Published: January 2022

Keselamatan pasien adalah pasien yang bebas dari cedera yang tidak seharusnya terjadi atau bebas dari potensi cedera (sakit, cedera fisik/psikologis sosial, kecacatan, kematian) yang berkaitan dengan pelayanan kesehatan. Di RS X, data kejadian keselamatan pasien tahun 2012 terdiri dari kesalahan pemeriksaan laboratorium, pasien jatuh, salah pemberian seri kolagen darah, pasien bumping, salah pemberian obat, dan kasus kematian pasien. Berdasarkan penentuan prioritas masalah yang akan diperiksa yaitu pasien jatuh dari tempat tidur. Salah satu penyebabnya adalah kurangnya kepatuhan perawat dalam menerapkan SOP pada risiko pasien jatuh. Tujuan penelitian ini adalah untuk menganalisis faktor-faktor yang berhubungan dengan karakteristik, pengetahuan, sikap, persepsi dukungan atasan, persepsi dukungan antar perawat, kenyamanan tempat/unit kerja dengan perilaku kepatuhan perawat dalam menerapkan SOP risiko pasien jatuh terhadap terjadinya keselamatan pasien di Unit Rawat Inap Rumah Sakit X. Jenis penelitian ini adalah Explanatory Research dengan desain cross sectional. Sampel dalam penelitian ini berjumlah 134 perawat rawat inap. Hasil penelitian menunjukkan terdapat 4 variabel yang berhubungan yaitu pengetahuan (p = 0,005), sikap (p = 0,035), persepsi dukungan atasan (p = 0,000), persepsi dukungan antar perawat (p = 0,003) dan faktor yang paling dominan berhubungan adalah persepsi support supervisor (OR = 5,504).
Persepsi Pemuda dalam Mencegah Covid-19 Menggunakan Pendekatan Health Belief Model di SMAN 9 Kecamatan Rappocini Kota Makassar Tahun 2021
Authors: Rahma Andi Ravida , Amiruddin Ridwan , Dwinata Indra , Rismayanti Rismayanti
Published: January 2022

Coronavirus Disease 2019 (Covid-19) merupakan pandemi global yang terus memakan korban jiwa. Virus ini telah menyebar secara merata di dunia dan hampir di seluruh wilayah di Indonesia. Hal ini terlihat dari data sebarannya. kasus aktif Covid-19 yang terus meningkat. Data kasus positif Covid-19 di Sulsel per 5 Januari 2021 dilaporkan sebanyak 33.931 kasus dan terus bertambah. Tindakan pencegahan telah diterapkan, tetapi tidak semua orang mematuhinya. Salah satu cara untuk meningkatkan upaya pencegahan Covid-19 adalah dengan meningkatkan persepsi masyarakat. Penelitian ini bertujuan untuk mengetahui persepsi siswa SMAN 9 kota Makassar dengan perilaku pencegahan penularan penyakit Covid-19 menggunakan pendekatan health belief model. Jenis penelitian ini adalah observasional dengan desain penelitian cross sectional. Besar sampel adalah 264 sampel. Penelitian berlangsung pada tanggal 1 Juni – 15 Juli 2021 di SMAN 9 Kota Makassar. Instrumen yang digunakan adalah angket berupa Goggle Form. Teknik analisis data yang digunakan adalah analisis univariat dan analisis bivariat menggunakan uji chi-square. Hasil penelitian menggunakan uji chi-square menunjukkan ada hubungan antara upaya pencegahan Covid-19 dengan persepsi kerentanan (p = 0,0029), cues to act (p = 0,044) dan self-efficacy (p = 0,001). sedangkan tidak ada hubungan antara persepsi keparahan (p=0,113), persepsi hambatan (p=0,191) dan manfaat yang dirasakan (p=0,139) dengan upaya pencegahan Covid-19. Kesimpulan dari penelitian ini adalah persepsi kerentanan, cues to action dan self efficacy memiliki hubungan dengan upaya pencegahan Covid-19 pada siswa SMAN 9 Kota Makassar
Charge properties and currents in the silicon/nanoparticles of zinc oxide heterostructure irradiated by the solar light
Authors: Kuraptsova A. A. , Danilyuk A. L.
Published: January 2022

Silicon/zinc oxide heterostructures have shown themselves to be promising for use in photovoltaics. This paper presents the results of modeling the charge properties and currents in a Si/nanosized ZnO particle with different types of conductivity under sunlight irradiation. The simulation was carried out using the Comsol Multiphysics software package. The energy diagrams of the investigated heterostructures were plotted, the charge properties and currents flowing in the structure were investigated, the dependences of the rate of generation of charge carriers on wavelength on the surfaces of silicon, zinc oxide, and at the interface between silicon and zinc oxide, the rate of recombination of charge carriers at various wavelengths of incident radiation was obtained. The regularities of the influence of wavelength of the incident radiation on the charge density and electric potential on the surface of heterostructures have been established. It is shown that the potential on the surface of the p-Si / n-ZnO heterostructure is positive, depends on the wavelength of the incident radiation and reaches the maximum of 0.68 V. For other structures, it is negative and does not depend on the wavelength: n-Si / p-ZnO –0.78 V, p-Si / p-ZnO –0.65 V, n-Si / n-ZnO –0.25 V.
Modification of the RLA model for presenting a cluster system of a composite material with a fractal filler structure
Authors: Belko A. V. , Babarika N. N. , Zeylikovich I. S. , Nikitin A. V.
Published: January 2022

The paper proposes a modification of the diffusion-limited aggregation model to study the properties of a cluster system. A computational experiment to determine the mutual influence of the sticking probability and the volume concentration of particles on the formation of fractal clusters in a cluster system was carried out in accordance  with  the  second-order  orthogonal  central  compositional  plan  (OCCP).  As  a  result of a computational experiment in accordance with the OCCP, an equation was obtained for the dependence of the mass fractal dimension of clusters on the volume of particle concentration and the probability of adhesion of diffusing particles and cluster particles in the adhesion zone. This dependence was obtained in a range of volume concentration of particles from 2 to 5 % and the probability of adhesion of diffusing particles and particles of clusters in the adhesion zone from 0.2 to 1.
Ab-initio simulation of hydrogenated graphene properties
Authors: Murav’ev V. V. , Mishchenka V. M.
Published: January 2022

Ab-initio simulation of hydrogenated graphene properties was performed. At present, graphene is considered one of the most promising materials for the formation of new semiconductor devices with good characteristics. Graphene has been the subject of many recent investigations due to its peculiar transport, mechanical and others properties [1]. The chemical modification of graphene named as graphane has recently entered the investigation as a possible candidate to solve problems connected with the lack of a graphene bandgap. Graphane is a compound material consisting of two-dimensional graphene bonded by some atoms of hydrogen. The investigation shows that graphane has the three valley Г-М-K band structure with the Г valley, which has the smallest energy gap between the conductivity zone and the valence zone. The calculation of relative electron masses and non-parabolic coefficients in Г, М and K valleys was performed. Based on the obtained characteristics, it is possible to implement a statistical multi-particle Monte Carlo method to determine the characteristics of electron transfer in heterostructure semiconductor devices. A research on modified graphene structures is important for fundamental science and technological applications in high-speed transistor structures operating in the microwave and very high frequency ranges.
The proton flux influence on electrical characteristics of a dual-channel hemt based on GaAs
Authors: Lovshenko I. Yu. , Voronov A. Yu. , Roshchenko P. S. , Ternov R. E. , Galkin Ya. D. , Kunts A. V. , Stempitsky V. R. , Bi Jinshun
Published: January 2022

The results of the simulation the influence of the proton flux on the electrical characteristics of the device structure of dual-channel high electron mobility field effect transistor based on GaAs are presented. The dependences of the drain current ID and cut-off voltage on the fluence value and proton energy, as well as on the ambient temperature are shown.
Influence of exchange-correlation functional on the structural and electronic properties of periodic structures with transition metal atoms
Authors: Baranava M. S.
Published: January 2022

The influence of the exchange-correlation functional on the crystal fundamental property calculation is shown. CrGeTe3, compound with transition metals, was used for the simulation of structural and electronic properties. The calculations were carried out using such functional classes as LDA and GGA. It has been shown that LDA exhibits 0.4 % and 5.2 % overestimations of the lattice constants for a and c, respectively. GGA (OR) overestimates a by 0.58 % and underestimates c by 4 %. The influence of the Hubbard correction on the band gap was also investigated. If Ueff is applied to the d-electrons, then the band gap will decrease. This is due to the hybridization of the p-electrons of the chalcogen and the d-electrons of the transition metal. Thus, GGA demonstrates better agreement with the experiment. The convergence of the calculation of the total energy with a change in the k-points and the cutoff energy were also investigated.
First-principles study of stability and electronic properties of single-element 2D materials
Authors: Hvazdouski D. C.
Published: January 2022

We have estimated stability of single-element 2D materials (C2, N2, Si2, P2, Ge2, As2, Sn2, Sb2, Pb2, and Bi2) by ab initio calculations. The calculations of structural and mechanical properties of 2D materials were performed using the VASP software package. The results of calculations of stiffness tensors, Young's modulus, and Poisson's ratios show that all studied single-element 2D materials are mechanically stable. Dynamic stability was investigated by calculating the phonon dispersion of the materials using the finite displacement method. Only Pb2 has imaginary modes in the phonon dispersion curves and therefore it has dynamic unstable structure at low temperatures. The analysis of the band structures indicates the presence of insulators (N2), semiconductors (P2, As2, Bi2, Sb2), semimetals, and metals among the studied group of single-element 2D materials.
Abdullab b. Ebî İshâk’ın Nahiv İlmindeki Yeri
Authors: ÜNVERDİ Şehmus , AYDIN İbrahim
Published: January 2022

İslam Dininin kutsal kitabı olan Kur’ân-ı Kerim’in Arapça olması Arap diline ayrı bir önem kazandırmıştır. Bu nedenle erken dönemde Kur’ân-ı Kerim’i anlamaya yönelik dil çalışmaları başlamış, İslam Dininin geniş bir coğrafyaya yayılıp Arap olmayanların da İslam’a girmesi ile bu çalışmalar daha da önem kazanmıştır. Arap olmayanların Müslüman olmalarıyla Kur’ân-ı Kerimin okunmasında görülen yanlışlıklar ile Araplar arasında “lahn” adı verilen konuşma hatalarının yayılması gibi nedenler Arap dili grameriyle ilgili çalışmaların başlatılmasını kaçınılmaz kılmıştır. Hicri birinci asırda başlayan bu çalışmalarda öne çıkan isimlerin başında Hz. Ali (ö. 40/661) ve Ebu’l-Esved ed-Dü’elî (ö. 69/688) gelmektedir. Bu çalışmalardan sonra nahvin yöntem kazanması konusunda öne çıkan ilk isim ise İbn Ebî İshak el-Hadramî (ö. 117/735) olmuştur. Bu araştırmada öncelikle İbn Ebî İshâk’a dair bilgi verilmiş ve nahiv ilminde yer alan kıyas ve illet konularındaki görüşleri ele alınmıştır. Ayrıca nahiv kitaplarında ilk olarak kendisine nispet edilen bazı gramer konuları incelenerek günümüzde kullanılan terimler ile aktarılmıştır. Çalışmada tabakât ve nahiv usulü eserlerinin yanı sıra ilgili güncel çalışmalardan da istifade edilmiştir.
Research of the Possibilities of Matching the Multi-element Receiving-Transmitting Irradiator Aperture
Authors: Rusov Yu. S. , Krapivina S. S.
Published: January 2022

Currently, aperture antennas with spatial excitation, such as reflector antennas and phased array antennas, are widely used in radar. The composition of such an antenna includes an irradiator, which can be made in the form of a small-element array of radiators to form a set of necessary radiation patterns. Monopulse irradiators are often used, which form both total and difference directional patterns. When performing an irradiator based on waveguide parts, radiators in the form of horns or open ends of waveguides are installed in its aperture. Waveguide irradiators with four and twelve horns are widely used. One of the main electrical characteristics of such an irradiator when used as part of a receiving-transmitting antenna is the isolation of the transmitting and receiving paths. Matching the aperture of the transmitting and receiving irradiator has a significant effect on the isolation of its waveguide channels. With small transverse dimensions of the radiators in the form of open ends of waveguides, it is not possible to obtain high isolation of waveguide channels without the use of additional matching elements. The task of research the effect of matching the aperture of a waveguide multi-element irradiator on the isolation of its transmitting and receiving channels, as well as the ways of matching its radiators, is set.

The article considers a four-horn irradiator, the aperture of which contains radiators in the form of open ends of a square waveguide. Each radiator has the radius rounding required for the manufacture of the product using the available technological processes. To match the emitter, a dielectric plate is installed inside it. During the research the thickness of the plate and its location relative to the aperture plane changed. The characteristics of matching the radiators with a plate made of teflon, polyethylene and ST-4 material based on polymers filled with titanium dioxide are presented.

The proposed method of matching the opening of a multi-element irradiator with a transverse emitter size of 0,68λ (λ is the wavelength in free space corresponding to the average frequency of the operating band) makes it possible to improve the isolation of the receiving and transmitting waveguide channels by at least 4 dB in the frequency band of up to 3%.
Investigation of Aerosol Inhomogeneities Parameters in Planetary Boundary Layer in UV-A Spectral Region
Authors: Filimonov P. A. , Ivanov S. E. , Gorodnichev V. A. , Belov M. L. , Fedotov Yu. V.
Published: January 2022

For today necessity of atmosphere wind remote sensing for wide pool of applications require development of new measurement methods and improvement of already existing.

Currently doppler methods for wind speed measuring have largest sensing range. Correlation-based methods are provide lower sensing range for wind speed measurement. However, doppler-based lidar are expensive in opposite to simply designed correlation lidars that additionally allows to measure wind profile along sensing direction.

Development of wind correlation lidars required knowledge of atmosphere aerosol inhomogeneities parameters.

The most experimental research till now in this area are related to visible spectral range.

One of the perspective eye-safety spectral range for wind lidar is UV spectral region. There not so much experimental research works of aerosol inhomogeneities parameters in UV.

This paper is related to field experiments of aerosol inhomogeneities parameters in planetary boundary layer on 0.355 um operating wavelength.

Block diagram and parameters of lidar with 0.355 operating wavelength is shown. Process of experiments is described. Typical atmosphere backscattering echo-signal for single laser pulse is demonstrated.

Procedures if lidar signals processing are described, example of two-dimensional field of relative fluctuations of volume backscattering coefficient for different atmosphere conditions is shown.

Results of measurement data processing shown that in planetary boundary layer average contrast of aerosol inhomogeneities in most cases has values in range 0,4% – 10 % (in case of snow up to 25%), and size in range 1,5 – 20 m. Dependency of observation number of aerosol inhomogeneities by range z from lidar to backscattering volume is descending with 1/z manner that the same for dependency for signal-noise ratio SNR(z).
Odd Mathieu Functions Application to Synthesize a Multi-element Radiator Flat-topped Radiation Pattern
Authors: Rusov Yu. S. , Propastin A. A.
Published: January 2022

The paper studies synthesizing capabilities of a flat-topped radiation pattern when using the expansion of the target radiation pattern into a series in terms of odd Mathieu functions. As parameters for comparing the target and synthesized radiation patterns, we used a main-lobe width at a level of -1 dB and an irregularity of the top of the main-lobe of the radiation pattern. The sector-shaped radiation pattern has been synthesized for linear radiators of various lengths. The convergence of the coefficients of the Mathieu series in the synthesis of the sector-shaped radiation pattern has been estimated. It is shown that the use of piecewise-linear approximation of the target radiation pattern in the synthesis using a series expansion into odd Mathieu functions allows us to improve the quality of the radiation pattern formed.

The task that involved finding the amplitude-phase distribution for a linear emitter with a length of 3λ, 4λ and 5λ (λ is operation wavelength) for a target radiation pattern was solved. The target amplitude distribution has the following electrical characteristics: the main-lobe width is 37.5° at a level of -1 dB and the side lobe level (SLL) is -20 dB. The synthesis procedure was performed for two cases. In the first case, the target radiation pattern is represented by a piecewise constant function with a given width. In the second case, the target pattern was specified using piecewise linear approximation of the top and slopes of the main lobe.

Comparison of the radiation patterns obtained shows that in the first case, the main-lobe width of the radiation pattern at a level of -1 dB is 34°, the SLL varies from -15.6 to -17 dB, and the irregularity of the main-lobe top of the radiation pattern lies within 0.9 ... 1.2 dB. In the second case, the main-lobe width of the antenna radiation pattern at a level of -1 dB is 36.5°, the SLL is -17.5 dB, and the irregularity of the main-lobe top is 0.4 dB at most. When used, the considered under consideration enables us to obtain both the synthesized patterns for linear radiators of various lengths, and the corresponding amplitude-phase distributions and coefficients of the Mathieu series. An estimate of the convergence of the Mathieu series shows that the use of linear approximation of the target radiation pattern in some cases allows up to 2.7-fold increase in acceleration of the convergence of the Mathieu series. The accuracy of reproducing the sector-shaped pattern by the synthesis method using the expansion into odd Mathieu functions gives good results when synthesizing the amplitude-phase distribution for the linear radiators with an electric length of 5λ or more.