bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of a modified variational formulation of the vector finite element method for modelling a harmonic electric field in areas with curved shields
Authors: Добролюбова Дарья Владимировна , Шурина Элла Петровна 
Published: August 2021

Рассматриваются особенности применения модифицированной вариационной постановки векторного метода конечных элементов (ВМКЭ), основанной на замене тонких сильнопроводящих объектов токонесущими поверхностями, для моделирования гармонического электрического поля в областях с криволинейными экранами при различном типе возбуждения поля. Исследуется применимость модифицированной вариационной постановки в широком диапазоне частот
Purpose. The paper addresses applicability of the modified variational formulation of vector FEM for the harmonic electric field to the media with cylindrical shields. Thin highly conductive objects are treated as surfaces with the equivalent surface current density. We consider the excitation of the field by a local source (current loop) located either inside or outside the cylindrical shield. Methodology. The simulations are carried out on unstructured tetrahedral meshes. Since the modified variational formulation treats thin highly conductive objects as surfaces, only the surface of a cylinder is discretized. The results yielded by the modified variational formulation are compared with the results of the classic vector FEM. Findings. For the frequency range between 100 KHz and 100 MHz, the modified variational formulation provides correct results when the field source is located outside the cylindrical shield. The modified variational formulation reduces computational cost, since the volume of the thin shield is not discretized. When the field source is located inside the shield, the modified variational formulation gives valid results only in the proximity of the source. Originality/value. The limitations for the application of the reduced variational formulation for the modelling of harmonic electric field in the media with hollow cylindrical shields are investigated
Upaya Meningkatkan Keaktifan Dan Hasil Belajar Siswa tentang Ciri-Ciri Bangun Datar Melalui Media Audio Visual dengan Pendekatan Contextual Teaching And Learning Kelas II SD Negeri 2 Semagarduwur
Authors: Utomo Dwi 
Published: August 2021

Upaya peningkatan kektifan siswa dan hasil belajar ini menggunakan pengembangan media pembelajaran berbasis Audio Visual dengan menggunakan pendekatan Contehtual Teaching and Learning bertujuan untuk meningkatkan kemampuan siswa memahami materi mengklasifikasikan ciri-ciri bangun datar melalui pembelajaran yang menyenangkan. Selanjutnya siswa dapat membandingkan ciri-ciri bangun datar yang berada di lingkungan sekitar. Media audio visual sebagai media menyampaikan pesan supaya lebih mudah dipahami dan sesuai yang mencakup semua karakteristik belajar siswa. Dari data dapat diketahui sebelum perbaikan pembelajaran nilai siswa sangat rendah dengan nilai 58,03 setelah diadakan perbaikan pembelajaran pada siklus I nilai rata-rata meningkat menjadi 70,6 tetapi peneliti masih ingin nilai yang lebih baik lagi yang sesuai dengan harapan. Akhirnya peneliti mengadakan perbaikan pembelajaran pada siklus 2 dan dari siklus II ini diperoleh nilai lebih baik, dengan nilai rata-rata 85,71, untuk pemantapan hasil penelitian diadakan penelitian siklus III. Pada siklus III pemantapan berhasil dilaksanakan dengan nilai rata-rata meningkat menjadi 86,45 . Untuk meningkatkan hasil belajar siswa dalam penilaian keterampilan dan menguasai pelajaran hendaknya guru harus mampu memilih dan menerapkan pendekatan mengajar yang tepat serta pemilihan media yang tepat agar siswa lebih tertarik sehingga pelajaran akan mudah diserap dan dipahami dengan baik.Kata Kunci : Audio Visual, Contextual Teaching and Learning, Keaktifan
The Aplication of Learning Models of Project Based Learning to Improve Students’ Learning Outcomes in Post-Legal Materials
Authors: Faradhillah Faradhillah , Zahara Syarifah Rita 
Published: August 2021

This study is motivated by the low learning outcomes of students of class VIII 3 SMP Negeri 2 Meurah Mulia which is known from the observations. The research objective was to determine the improvement of learning outcomes in the Pascal Law material for class VIII 3 students of SMP Negeri 2 Meurah Mulia by using project based learning (pjbl) of learning model. This research is a type of classroom action research with a model developed by Kemmis and Mc. Taggart. The study subjects were students of class VIII 3, with a total of 16 students. The techniques used in data collection are tests, observation, interviews and documentation. This study consisted of 2 (two) cycles where there were two meetings in each cycle. The data analysis technique used a qualitative descriptive analysis. The study success criteria set for student learning outcomes is 75 for a scale of 1-100 grading. The results showed that the application of the project based learning (pjbl) of learning model could improve the learning outcomes of class VIII 3 students of SMP Negeri 2 Meurah Mulia. The average learning outcomes in cycle I was 73.16 and in cycle II increased to 82.51. In conclusion, the application of the project based learning model can improve student learning outcomes in science learning class VIII 3 SMP Negeri 2 Meurah Mulia.
Possibility of using CMS Maple to study laws of distribution of random variables
Authors: Moshchenko I. , Nikitenko O. , Kozlov Yu.V. 
Published: August 2021

The use of CMS Maple for students' practical and independent work is described. The study of random variable distribution laws is actual.
Statistical calculations without computer are difficult and require many functional and quintiles tables of standard distributions. This does not contribute to feeling the element of novelty in the material being studied, to be able to arbitrarily change the conditions of tasks, etc., it takes a lot of time in solving applied production problems, which is inappropriate
Thus to determine and research random variable distribution laws both in practical applications and in studying we must use special mathematical packages. The most extended of them are Mathcad, MatLab, Mathematica, Maple. Specialized statistical packages (SAS, SPSS, STATISTIKA, STATGRAPHICS) are not relevant to study. Their use for studying requires very high education level in mathematical statistics.
Most of the existing math packages allow users to operate at random variables, including the Computer Mathematics System (CMS) Maple.
Thus, the purpose of this article is a description of the studying possibilities of the random variables distribution laws with CMS Maple and the application of the acquired skills to the independent work of students.
The Maple Statistics Library has a large set of commands for analyzing data, computing various numerical characteristics of random variables, graphing their distribution laws, and for statistical data processing.
Thanks to a powerful set of statistical tools, the possibility of symbolic calculations and data processing of CMS Maple, wide possibilities of graphical interpretation of the results obtained not only in a static but also in a dynamic form, it is advisable to use it when studying the topic "Distribution Laws of Random Variables" in students' practical and independent work to use their acquired skills in solving applied problems of science and technology.
Penilaian Perkembangan Anak Selama Belajar dari Rumah di Era Pandemic Covid-19
Authors: Kemala Ayu , Rohman Arif 
Published: August 2021

Pemindahan pembelajaran ke rumah secara daring sebagai upaya mencegah penularan Covid-19 menyebabkan perubahan pada sistem pendidikan baik dari segi pembelajaran, penilaian, media dan lainnya. Penelitian ini bertujuan untuk menganalisis pelaksanaan penilaian perkembangan anak selama belajar dari rumah. Subjek penelitian 23 guru Taman Kanak-Kanak dari 10 sekolah yang melaksanakan pembelajaran jarak jauh di Sumatra Utara dengan risiko sedang penyebaran COVID-19 yaitu, Kota Medan, Deli Serdang, Serdang Berdagai, Asahan, dan Labuhan Batu. Menggunakan pendekatan deskriptif kuantitaif dengan menggunakan kuesioner sebagai teknik pengumpulan data. Kuesioner disusun menggunakan Google Form, selanjutnya tautannya disebarkan guru melalui media whatsapp. Hasil penelitian menunjukkan bahwa pelaksanaan penilaian perkembangan anak tetap dilaksanakan meski pembelajaran dilakukan dari rumah. Penilaian dilakukan dengan mengumpulkan informasi melalui laporan orang tua. Laporan orang tua berupa dokumentasi terkait proses kegiatan dan hasil kerja anak. Dikumpulkan menjadi portofolio yang berisi dokumentasi elektronik yaitu foto hasil lembar kerja, hasil karya anak, dan video unjuk kerja anak yang disatukan dalam bentuk file untuk dilakukan penilaian.
Perception of Respondents on Factors Affecting Management of Nursing Education Institutes
Authors: Dangol Bhuwan Kumari , Thapa Narbada 
Published: August 2021

Management in education institute entails working with and through teachers, non teaching staff and students to get things done effectively. A descriptive cross-sectional study design was used to find out the management of nursing education institutes in selected colleges at Kathmandu valley. Data was collected in 2019 from 14 colleges. Sample size was 620, including 14 administrators, 229 faculties and 377 bachelor level final year nursing students. Ethical approval was taken from Nepal health research council. Self-administered structured questionnaire was used to collecting data and analysis was done in SPSS version 16.Keys factors were identified that may affect the management of nursing education institutes (NEI). All most all administrators agreed in all indicators. But there was different opinion on faculties and students. Highest percent of faculties disagreed on visions, mission, staffs understood (70%), class schedule, clinical supervision and students’ teacher ratio, nursing leadership (17%) and resource availability. Fifteen percent students disagreed in functioning alumni, library facility, strategic plan and function of executive committee (36.1%), use of operation plan, lesson plan (22.3%), class schedule (16.4%), and facility of skill laboratory (9.1%), clinical supervision (27.6%) and proper students’ teacher ratio (36.3%). In quality assurance system majority of the facilities disagreed and all most all students undecided. Analysis of variations between group (administrators, faculties, students) found statistical significance (p-value <0.05). So it is concluded the perception of students, faculties and administrator were found different on management of the nursing education institutes.
Comparison of scapular upward rotator muscle activities and activity ratios during three scapular upward rotator strengthening exercises
Authors: Kim Jun-Hee , Kwon Oh-Yun , Hwang Ui-Jae , Jung Sung-Hoon , Ahn Sun-Hee , Gwak Gyeong-Tae 
Published: August 2021

BACKGROUND: The focus of exercises for restoring the imbalance between scapular upward rotator muscles – upper trapezius (UT), serratus anterior (SA), and lower trapezius (LT) – commonly aims to increase SA and LT activities while not increasing UT activity. OBJECTIVES: The purpose of this study was to compare the activity of the UT, SA, and LT muscles during scapation and protraction exercises, which are two traditional exercises, and during a newly designed scapular upward rotation (SUR) exercise. METHODS: A total of 29 healthy young adult men performed all three exercises with maximum isometric contraction. The electromyographic activities of the UT, SA, and LT were recorded. RESULTS: UT demonstrated the highest activity during scapation. SA activity was the lowest during protraction. However, no difference was found in SA activity during the performance of scapation and SUR. The SA/UT ratio was the highest during scapation. CONCLUSIONS: SUR is a new exercise that can be performed at moderate intensity for shoulder rehabilitation to restore scapular upward rotator muscle imbalance.
Kebijakan Promosi Selama Pembatasan Sosial Berskala Besar di The Sultan Hotel & Residence, Aryaduta Suites Semanggi dan Grandhika Iskandarsyah
Authors: Parantika Asep , Juliandra Sheyla 
Published: August 2021

In early 2020, the entire world suffered the Covid-19 Pandemic which impacted the hotel industry enormously. One of the impacts felt by several hotels was a decline in hotel occupancy, resulting in a quite shortfalls. To suppress the increasing number of Covid-19 virus cases, the regional government of DKI Jakarta Province has implemented a Large-Scale Social Ristictions Policy (PSBB). Hence, the objectives of this study are (1) to find out the impacts on hotels’ during the PSBB period, (2) to find out hotel’s promotion policy during the Covid-19 pandemic (3) to find out the outcomes of hotels’ promotion policy implementation during the Covid-19 pandemic. This study uses qualitative research with a descriptive approach. Data collection techniques are used by conducting interviews and documentation studies. The results showed that hotel industry undergone a tremendous impact, one of which was the decrease in hotel occupancy. Some hotels have developed some promotion policy to keep their operation wheels moving. The following is the hotel promotion policy, including creating a “Work From Hotel” package or working in a hotel, namely by designing hotel rooms as personal offices equipped with fast Wi-Fi, selling 3 night packages for 2 nights including 2 breakfast, selling complete sanitation packages for living quarters, offices, houses of worship, schools or other areas, selling food in boxes that can be delivered to the destination and selling the "Buy Now Stay Later" promotion, namely buy now, stay later "
EKSPLORASI AKTIVITAS ETNOMATEMATIKA DI PASAR TRADISIONAL NOEMUTI KABUPATEN TIMOR TENGAH UTARA (TTU)
Authors: Kou Dominikus , Nahak Selestina , Mamoh Oktovianus 
Published: August 2021

Matematika dan budaya merupakan dua hal yang memiliki keterkaitan yang sangat erat, karena matematika merupakan ilmu yang digunakan untuk menyelesaikan masalah dalam kehidupan sehari – hari sedangkan budaya merupakan kebiasaan – kebiasaan yang dihayati dan dihidupi oleh masyarakat di tempat dan daerah tertentu sebagai satu pedoman dalam hidup bersama. Keterkaitan antara matematika dan budaya dikenal dengan istilah etnomatematika. Etnomatematika merupakan matematika yang tumbuh dan berkembang dalam budaya. Dengan menerapkannya etnomatematika sebagai suatu pendekatan pembelajaran, wawasan siswa akan semakin luas dan juga siswa akan lebih mudah dalam mempelajari matematika karena langsung terkait dengan budaya yang merupakan aktivitas mereka sehari – hari. Penelitian ini bertujuan untuk untuk mendeskripsikan aktivitas etnomatematika di Pasar Tradisional Noemuti Kabupataen Timor Tengah Utara. Teknik pengumpulan data dalam penelitian ini dilakukan dengan observasi, wawancara dan dokumentasi. Teknik analisis data dalam penelitian ini dilakukan dengan analisis domain, analisis taksonomi, analisis komponensial, dan analisis tema budaya. Hasil penelitian menunjukan bahwa terdapat konsep – konsep matematika pada aktivitas di Pasar Tradisional Noemuti Kabupaten Timor Tengah Utara antara lain: konsep himpunan, aritmetika sosial, persamaan linear, penjumlahan, pengurangan, perkalian, pembagian, diskon, bilangan kardinal serta prinsip matematika yaitu prinsip perbandingan yang dapat diimplementasikan kedalam pembelajaran matematika di sekolah dalam bentuk pembuatan soal-soal matematika. Oleh karena itu peneliti menyarankan agar guru dapat menjadikan hasil eksplorasi aktivitas etnomatematika di Pasar Tradisioal Noemuti Kabupaten Timor Tengah Utara sebagai penerapan pembelajaran matematika kontekstual.
ANALISIS KEMAMPUAN LITERASI STATISTIS DALAM MATERI VARIABILITAS
Authors: Maryati Iyam 
Published: August 2021

Abstrak
Artikel ini memuat penelitian mengenai kemampuan literasi statistis dalam materi variabilitas. Tujuan dari penelitian ini untuk mendeskripsikan kemampuan literasi statistis dalam materi variabilitas baik secara umum ditinjau dari hasil akhir kemampuan literasi statistis mahasiswa maupun secara khusus ditinjau dari setiap indikator dengan tiga kategori kemampuan literasi statistis mahasiswa yaitu tinggi, sedang, dan rendah. Subyek penelitian melibatkan 67 orang mahasiswa calon guru pendidikan matematika. metode yang digunakan dalam penelitian ini yaitu studi kualitatif secara deskriptif. Teknik pengumpulan data dilakukan dengan instrumen tes uraian dan wawancara. Tehnik analisis data dengan tehnik Miles and Hubberman. Hasil penelitian menunjukkan kemampuan literasi statistis mahasiswa pada kategori tinggi mampu menyelesaikan semua permasalahan yang disajikan dengan memahami data, menginterprestasikan data, dan mengkomunikasikan data dengan tepat. Mahasiswa kategori sedang menunjukkan kemampuan literasi statistis dalam indikator memahami data hanya terdapat pada soal nomor 1, menginterprestasikan data mengkomunikasikan data sudah dapat melakukannya dengan tepat. Sedangkan untuk mahasiswa kategori kemampuan rendah masih belum mampu memahami data, menginterprestasikan data, dan mengkomunikasikan data sehingga banyak melakukan kesalahan. Peneliti menyarankan agar penelitian selanjutnya memperhatikan model pembelajaran dalam perkuliahan statistika deskriptif untuk meningkatkan kemampuan literasi statistis.
TEORI MOTIVASI ABRAHAM H. MASLOW DAN IMPLIKASINYA DALAM KEGIATAN BELAJAR MATEMATIKA
Authors: Zebua Try Gunawan 
Published: August 2021

ABSTRACT
One of the famous Motivation Theory is Abraham H. Maslow's Motivation Theory which is also referred to as Abraham H. Maslow's Motivation Theory or Maslow's Hierarchy of Needs Theory. Students' Mathematics Learning Achievement and Mathematics Learning Outcomes can be categorized as low, so a solution needs to be given by implying Abraham H. Maslow's Motivation Theory. The research method used in this research is Literature Study, where the researcher analyzes Abraham H. Maslow's Motivation Theory directly from Abraham H. Maslow's book entitled Motivation and Personality (translation of Achmad Fawaid and Maufur, the publisher of Cantrik Pustaka), then the researcher analyzes the impact of the theory. if it is implied in mathematics learning activities. Abraham H. Maslow's Motivation Theory in the first stage can be applied in mathematics learning activities by providing food and drink to students, the second stage can be applied by making students safe in mathematics learning activities, the third stage can be applied by establishing communication between teachers and students, The fourth stage can be applied in a way that there is mutual respect between teachers and students and fellow students, and the fifth stage can be applied by providing opportunities for students to express opinions in discussion activities. By implying Abraham H. Maslow's Motivation Theory can influence or improve students' Mathematics Learning Achievement and Mathematics Learning Outcomes.
Keywords: Abraham H's Motivation Theory, Maslow, Dream, Learning Mathematics.
Analisis Pembelajaran Daring Berdasarkan Technology Readiness Index 2.0 Mahasiswa Pendidikan Matematika Universitas Ivet
Authors: Kurniati Lenny , Kusumawati Ratih 
Published: August 2021

Kesiapan teknologi menjadi penting dalam pelaksanaan pembelajaran daring. Penelitian ini berfokus khususnya pada bagaimana kesiapan teknologi berperan dalam hasil pembelajaran daring selama masa pandemi covid-19. Tujuan utama dari penelitian ini adalah untuk mendeskripsikan kesiapan teknologi dari empat aspek yaitu optimisme, inovatif, insecurity dan discomfort serta pengaruhnya terhadap indeks prestasi mahasiswa. Penelitian ini dilakukan pada 34 mahasiswa Program Studi Pendidikan Matematika Universitas Ivet dengan menggunakan instrumen kuesioner Technology readiness index 2.0. Hasilnya menunjukkan bahwa Berdasarkan Indeks Kesiapan Teknologi (TRI) berpengaruh secara positif dan signifikan terhadap Indeks Prestasi Komulatif (IPK) mahasiswa Universitas Ivet dengan skor Pearson Correlation sebesar 0,517. TRI mempengaruhi IPK mahasiswa Universitas Ivet sebesar 26,8%, sedangkan sisanya dipengaruhi oleh faktor lain yang tidak terukur dalam penelitian ini. Diperoleh persamaan regresi artinya setiap penambahan variabel TRI sebesar satu satuan, maka variabel IPK bertambah sebesar 0.03 satuan. Kesiapan teknologi dalam pembelajaran online membuat proses pembelajaran menjadi tidak terikat, terkesan lebih santai dan fleksibel. Penelitian lebih lanjut diperlukan untuk meningkatkan kesiapan teknologi mahasiswa menuju era pembelajaran online.
A Two-Gene-Based Diagnostic Signature for Ruptured Intracranial Aneurysms
Authors: Li Yuwang , Qin Jie 
Published: August 2021

Background: Ruptured intracranial aneurysm (IA) is a disease with high mortality. Despite the great progress in treating ruptured IA, methods for risk assessment of ruptured IA remain limited.Methods: In this study, we aim to develop a robust diagnostic model for ruptured IA. Gene expression profiles in blood samples of 18 healthy persons and 43 ruptured IA patients were obtained from the Gene Expression Omnibus (GEO). Differential expression analysis was performed using limma Bioconductor package followed by functional enrichment analysis via clusterProfiler Bioconductor package. Immune cell compositions in ruptured IA and healthy samples were assessed through the CIBERSORT tool. Protein–protein interaction (PPI) was predicted based on the STRING database. Logistic regression model was used for the construction of predictive model for distinguishing ruptured IA and healthy samples. Real-time quantitative polymerase chain reaction (RT-qPCR) was performed to validate the gene expression between the ruptured IA and healthy samples.Results: A total of 58 differentially expressed genes (DEGs) were obtained for ruptured IA patients compared with healthy controls. Functional enrichment analysis showed that the DEGs were enriched in biological processes related to neutrophil activation, neutrophil degranulation, and cytokine–cytokine receptor interaction. Notably, immune analysis results proved that the rupture of IA might be related to immune cell distribution. We further identified 24 key genes as hub genes using the PPI networks. The logistic regression model trained based on the 24 key genes ultimately retained two genes, i.e., IL2RB and CCR7, which had great potential for risk assessment for rupture of IA. The RT-qPCR further validated that compared with the healthy samples, the expression levels of IL2RB and CCR7 were decreased in ruptured IA samples.Conclusions: This study might be helpful for cohorts who have a high risk of ruptured IA for early diagnosis and prevention of the disease.