bluuebunny/crossref_metadata_2025 huggingface dataset:
Survey on Senior High School Basket Ball Extracurricular During Pandemic in Bangkalan District
Authors: Safitri Elma , Hidayatullah Fajar , Anwar Khoirul
Published: December 2021

The study was conducted because it wanted to provide information about student activities in basketball extracurricular activities for junior high school students in Bangkalan Regency during the COVID19 pandemic. This study uses a quantitative research approach using survey methods with questionnaires or questionnaires. This study aims to 5 schools that have been surveyed with 91 students as respondents. The instrument by collecting data from respondents is a questionnaire using a Likert scale with 10 statements compiled. From the results of the study, students still carried out basketball extracurricular activities even though it was still a COVID-19 pandemic in accordance with the coach's directions including physical activities and movement techniques. Based on the results of the junior high school basketball extracurricular survey research in Bangkalan Regency during the COVID-19 pandemic, it can be interpreted that students are still doing physical activities and playing basketball and coaches are still providing training directions to students who take basketball extracurricular activities even though it is still a pandemic. In the implementation of extracurricular during the COVID19 pandemic Key words: COVID-19, Extracurricular, Basketball
Personalized System of Instruction Models Using “POJOK” Digital Module Based Toward Basket Ball Learning Outcome
Authors: Juditya Silvy , Zakaria Dhani Agusni , Hardi Veny Juaniarni , Rusmana Ruslan
Published: December 2021

The development of technology demands a lot of changes in the world of education, as well as in physical education learning so that physical education teachers in schools must be able to choose and apply learning models that can be juxtaposed with technology-based learning media, therefore the purpose of this study is to determine the effect of learning models. personalized system of instruction (PSI) based on the application of the electoral module "PJOK" on basketball learning outcomes. To achieve these objectives, the research method used is an experimental method with a one group pre-test-post-test design. The data source of this research involved in this study, namely 120 students aged 13-15 years at SMPN 8 Cimahi with purposive random sampling technique. The research instrument used was a basketball basic movement skills test instrument (ITKG BB) for ages 13-15. The data analysis used was paired simple t-test and the results of this study obtained a t-count value of 61.87 with a significance level of 0.00. Looking at the results of data analysis, the conclusion of this study is that there is an influence of the personalized system of instruction (PSI) learning model based on the application of the electoral module "PJOK" on basketball learning outcomes.Key words: Personalized System of Instructioned models (PSI), E-Modul, Basket Ball
Kemampuan Representasi Matematis Ditinjau dari Kemandirian Belajar dengan Model Pembelajaran Berbasis Masalah dan Inkuiri
Authors: Maryati Iyam , Suryaningsih Fitri
Published: December 2021

Tujuan dari penelitian ini adalah untuk mengetahui perbedaan kemampuan representasi matematis ditinjau dari kemandirian bealjar antara siswa yang mendapatkan model pembelajaran berbasis masalah dan inkuiri. Penelitian ini dilakukan pada siswa kelas X MIA 1, dan X MIA 3 di MAN 2 Garut tahun ajaran 2019/2020. Metode penelitian yang digunakan dalam penelitian ini adalah penelitian kuasi eksperimen. Adapun Teknik pengumpulan data dengan triangulasi data, instrument yang digunakan yaitu soal tes kemampuan representasi matematis dan lembar angket kemandirian siswa. Berdasarkan hasil penelitian, pengolahan data, analisis, dan pengujian hipotesis, maka didapatkan hasil sebagai berikut: (1) Terdapat perbedaan kemampuan representasi matematis antara siswa yang mendapatkan model pembelajaran berbasis masalah dan inkuiri; (2) Tidak terdapat perbedaan representasi matematis ditinjau dari kemandirian belajar antara siswa  yang mendapatkan model model pembelajaran berbasis masalah dan inkuiri; (3) Kemandirian belajar siswa terhadap model pembelajaran berbasis masalah berinterpretasi baik; (4) Kemandirian belajar siswa terhadap model pembelajaran inkuiri berinterpretasi baik.
Pola Komunikasi dan Interaksi dalam E-learning Statistika Matematika Selama Covid-19
Authors: Istiqomah Istiqomah , Sulistyowati Fitria
Published: December 2021

Penelitian ini merupakan penelitian deskriptif kualitatif yang bertujuan untuk mendeskripsikan perspektif mahasiswa pada aspek pola komunikasi dan interaksi dalam pembelajaran e-learning Statistika Matematika. Tahap penelitian kualitatif yaitu: (1) identifikasi masalah; (2) penelusuran kepustakaan; (3) maksud dan tujuan penelitian; (4) pengumpulan data; (5) analisa dan pelaporan data; (6) pelaporan. Subjek penelitian ini adalah seluruh mahasiwa yang mengambil mata kuliah Statitika Matematika di Prodi Pendidikan Matematika Universitas Sarjanawiyata Tamansiswa (UST) pada tahun ajaran 2019/2020. Teknik pengumpulan data yang digunakan adalah angket Skala Likert. Data dalam penelitian ini dianalisis secara statistik deskriptif. Temuan dalam penelitian ini adalah: (1) 50% mahasiswa menganggap e-learning Statistika Matematika memberikan kemudahan dalam berinteraksi; (2) 47,02% mahasiswa menganggap e-learning Statistika Matematika memberikan kemudahan dalam menjalin keakraban; (3) 61,94% mahasiswa mengalami kesalahan komunikasi dalam e-learning Statistika Matematika; (4) 50,75% mahasiswa menganggap e-learning Statistika Matematika memberikan kemudahan dalam mengutarakan pendapat. Temuan tersebut selanjutnya akan dijadikan acuan untuk memperbaiki pembelajaran yang akan dilakukan.
Pengaruh Konsentrasi Belajar dan Lingkungan Belajar terhadap Hasil Belajar Matematika pada Pembelajaran Daring
Authors: Yuliana Yuliana , Anindita Hanifah Alifiananta , Syaifuddin Muhammad Wahid
Published: December 2021

Melalui penelitian ini, peneliti menganalisis pengaruh konsentrasi belajar siswa maupun kondisi lingkungan belajar siswa atas hasil belajar matematika pada pembelajaran daring, baik secara terpisah maupun secara bersama-sama. Dalam mendukung tercapainya tujuan penelitian ini, sampel dipilih secara cluster random sampling. Dari sampel tersebut terkumpullah data menggunakan angket secara online serta tes menggunakan Quizizz. Melalui angket terhimpun data konsentrasi belajar siswa serta data lingkungan belajar siswa, sedangkan melalui tes terhimpun data hasil belajar matematika. Setelah data terkumpul, data tersebut dianalisis menggunakan regresi linear berganda. Dari penelitian ini diperoleh simpulan bahwa konsentrasi belajar siswa serta kondisi lingkungan belajar siswa memberikan dampak positif yang signifikan secara terpisah maupun bersamaan atas hasil belajar matematika dalam pembelajaran daring.
Pendekatan Pembelajaran Open Ended terhadap Peningkatan Kemampuan Pemahaman Matematis Siswa SMP
Authors: Giyarti Giyarti
Published: December 2021

Kemampuan pemahaman matematis artinya materi yang diajarkan kepada siswa bukan hanya sebagai hapalan, namun lebih dari itu dengan pemahaman siswa dapat lebih mengerti akan konsep materi pelajaran itu sendiri. Dalam kenyataannya kemampuan pemahaman matematis ini kurang mampu dimaksimalkan dalam pencapaiannya di sekolah, termasuk di SMP Negeri 2 Mande. Salah satu pendekatan yang mampu mengoptimalkan kemampuan pemahaman matematis siswa adalah pendekatan open ended. Pendekatan open ended menyajikan problem yang diformulasikan memiliki multijawaban yang benar disebut juga problem tak lengkap atau soal terbuka. Dari hasil analisis data menunjukkan bahwa: terdapat pencapaian dan peningkatan kemampuan pemahaman matematis siswa yang lebih baik dari siswa yang belajar dengan menggunakan pendekatan open ended  daripada siswa yang belajar dengan menggunakan pendekatan konvensional, hampir seluruhnya siswa memiliki sikap positif terhadap pembelajaran matematika dengan menggunakan pendekatan open ended, terdapat korelasi positif antara sikap sikap siswa terhadap pembelajaran matematika menggunakan pendekatan open ended dengan peningkatan kemampuan pemahaman matematis siswa. Berdasarkan pembahasan diperoleh kesimpulan bahwa pendekatan pembelajaran open ended berpengaruh terhadap peningkatan kemampuan pemahaman matematis.
STUDI MODEL PEMBIAYAAN KONSTRUKSI JALAN PADA RUAS JALAN SELAJAMBE – CIBOGO – CIBEET
Authors: Sekaryadi Yudi
Published: December 2021

Ada beberapa jenis kerusakan jalan yaitu jalan dengan kondisi baik, sedang, rusak ringan dan rusak berat. Berdasarkan hasil survey pada ruas jalan Selajambe – Cibeet terdapat 3 km jalan dengan kerusakan rusak berat dan perlu dilakukan pemeliharaan berupa peningkatan jalan. Peningkatan jalan dilakukan dengan pelapisan tambahan. Untuk perencanaan tebal perkerasan, didapat susunan lapis perkerasan Laston = 10 cm, Batu pecah (kelas B) = 25 cm, Sirtu = 44 cm. Dan untuk perhitungan tebal perkerasan pada ruas jalan Selajambe – Cibeet (Km Bdg 53 + 090 s/d 68  + 681) menggunakan metode perkerasan lentur dengan Rencana Anggaran biaya (RAB) sebesar Rp 53.714.607.660Kata kunci : Kondisi jalan, peningkatan jalan, tebal perkerasan
EVALUASI KINERJA PROYEK PEMBANGUNAN RUANG PRAKTIK SISWA (RPS) SMK TERPADU AL-ITTIHAD PURABAYA KABUPATEN SUKABUMI
Authors: Kartika Nia , Maulana Adi Chandra
Published: December 2021

Proyek pembangunan Ruang Praktik Siswa (RPS) SMK Terpadu Al-Ittihad Purabaya Kabupaten Sukabumi yang sedang dilaksanakan mengalami keterlambatan ketika dilihat dari kurva-S antara rencana dan realisasi. Namun, secara rinci keterlambatan itu tidak bisa dirinci berdasarkan kinerja proyek  masing-masing ketika hanya melihat dari barchart yang ada. Sehingga pemilik proyek membutuhkan analisis keterlambatannya dan perkiraan biaya dan waktu yang akan dihabiskan ke depannya sampai proyek pembangunannya selesai. Metode analisis pengendalian proyek ini menggunakan metode Earned Value. Informasi yang ditampilkan berupa indikator dalam bentuk kuantitatif, yang menampilkan informasi progres biaya dan jadwal proyek. Hasil penelitian pada akhir peninjauan di minggu ke–8 didapatkan indeks kinerja jadwal (SPI) sebesar 0,91 kurang dari satu dan varian jadwal (SV) bernilai negatif yaitu sebesar -Rp. 11.632.200,- yang berarti pelaksanaan proyek lebih lambat dari jadwal yang direncanakan. Nilai indeks kinerja biaya (CPI) sebesar 1,05 lebih dari satu dan nilai varian biaya (CV) bernilai positif sebesar Rp. 5.467.500,- berarti pengeluaran lebih kecil dari anggaran rencana dengan volume yang sama, artinya tidak terjadi kekurangan biaya sampai dengan minggu ke 8. Adapun perkiraan biaya penyelesaian proyek sebesar Rp. 249.831.173,-, dari biaya yang dianggarkan sebesar Rp. 261.416.000,-, sehingga tidak mengalami kerugian. Sedangkan untuk waktu penyelesaian akhir pekerjaan diramalkan selama 15,66 minggu, yang berarti waktu sedikit lebih lambat dari jadwal yang direncanakan selama 15 minggu. Maka perlu adanya peningkatan kinerja di minggu selanjutnya agar proyek dapat selesai sesuai waktu yang direncanakan. Faktor yang mempengaruhi peningkatan kinerja proyek adalah penambahan jam kerja dan tenaga kerja di lapangan, khusunya untuk pekerjaan atap, plafond lantai dan ME. Kata Kunci : Pengendalian proyek, Biaya dan Waktu, Earned Value.
PERENCANAAN STRUKTUR GEDUNG PERKANTORAN 7 LANTAI
Authors: Rahayu Tanjung
Published: December 2021

Gedung merupakan tempat untuk melakukan aktifitas dalam berbagai bidang, contohnya adalah gedungperkantoran. Dilihat dari fungsinya maka dibutuhkan ruang yang memadai agar kegiatan perkantorannyaman dan aman. Dalam membangun sebuah gedung diperlukan perencanaan yang matang terutamadalam perencanaan strukturnya. Hasil analisis didapatkan mutu beton sebesar 25 MPa, mutu tulangan bajauntuk diameter <12 mm sebesar 240 MPa dan diameter >13 mm sebesar 390 MPa, pelat tangga dan bordesdengan tebal 150mm (tulangan 2D13), balok bordes dengan dimensi 250x300mm (tulangan 2D13 dansengkang 010-120mm), balok penggantung lift dengan dimensi 250x300mm (tulangan 4D13 dan sengkangD13-100mm), pelat lantai dengan tebal 150mm (tulangan arah x 012-160 mm dan y 012-120 mm), balokBA1 dengan dimensi 300x450mm (tulangan tumpuan dan 2D25 dan sengkang 010-150mm), balok BA2dengan dimensi 250x350mm (tulangan tumpuan dan 2D25 dan sengkang 010-150mm), balok B1 dengandimensi 400x650mm (tulangan tumpuan 10D25, lapangan 5D25 dan sengkang D13-100mm), balok B2dengan dimensi 300x500mm (tulangan tumpuan 6D25, lapangan 3D25 dan sengkang D13-130mm), balokB3 dengan dimensi 250x300mm (tulangan tumpuan 2D25, lapangan 2D25 dan sengkang 010-110mm),kolom K1 dengan dimensi 700x700mm (tulangan 36D25 dan sengkang 012-150mm), dan kolom K2 dengandimensi 400x400mm menggunakan tulangan (tulangan 8D25 dan sengkang 012-150mm).Kata kunci : Gedung, Perencanaan, Struktur, Gempa, SPRMK
PERENCANAAN PERKERASAN JALAN RAYA CARIU KM BDG 79 – KM BDG 81 MENGGUNAKAN METODE PERENCANAAN PERKERASAN JALAN BETON SEMEN PD T-14-2003
Authors: Rochman Fatchur , Nur Effendie Mochammad Ichwan
Published: December 2021

Seiring dengan perkembangan kebutuhan manusia, maka semakin banyak barang dan kebutuhan yang harus di distribusikan dari suatu daerah ke daerah lainnya, para penyedia jasa angkutan barang biasanya mengangkut barang melebihi kapasitas yang diizinkan untuk kendaraan bias melewati jalan tertentu, sehingga struktur perkerasan jalan semakin mudah rusak.Kerusakan perkerasan jalan ini terjadi pula pada ruas Jalan Raya Cariu KM. BDG 79 – KM. BDG 81, kerusakan terjadi pada struktur perkerasan kaku (rigid pavement) eksisting tanpa menggunakan tulangan. Kerusakan perkerasan ini dikarenakan kelebihan beban kendaraan yang dapat mengakibatkan kecelakaan.Kerusakan struktur perkerasan kaku tanpa tulangan ini akan dibandingkan dengan struktur perkerasan kaku dengan tulangan berdasarkan standar Pd T-14-2003. Dari nilai CBR tanah dasar tersebut diperoleh nilai CBR efektif sebesar 28%, Tebal pelat beton yang direncanakan setebal 30 cm, dengan jenis dan tebal pondasi bawah adalah campuran beton kurus setebal 125 mm, Penulangan pelat yang digunakan (dalam kasus ini digunkan pelat beton bersambung dengan tulangan) adalah Tulangan diameter 8 mm dengan jarak 150 mm untuk tulangan memanjang, dan, Tulangan diameter 8 mm dengan jarak 150 mm untuk tulangan melintang.Nilai jarak tulangan tersebut diambil berdasarkan luas tulangan minimum (As minimum).Kata kunci :  Perkerasan Jalan,Perkerasan Kaku,Perkerasan Lentur, CBR.
Studi Karakteristik Penataan Parkir Pada Jalan Mangunsarkoro Kabupaten Cianjur
Authors: Sekaryadi Yudi , Setiawan Devi
Published: December 2021

Wilayah Kabupaten Cianjur merupakan daerah yang cukup strategis karena berbatasan dan dekat dengan kota-kota besar. Kabupaten Cianjur merupakan daerah yang sedang berkembang terutama di bidang perdagangan. Dengan berkembangnya di bidang perdagangan, maka jumlah penduduk di Cianjur semakin meningkat sesuai dengan kebutuhan akan kehidupan sehari-hari. Di jalan mangunsarkoro merupakan kawasan perdagangan yang dilengkapi dengan prasarana perpakiran yang memadai sehingga banyak pengunjung yang memanfaatkan badan jalan sebagai tempat parkir. Penelitian ini menggunakan metode survai lapangan  dengan melakukan pengamatan secara langsung, Pengamatan langsung dilakukan dengan pencatatan secara manual data masuk kendaraan dan keluar kendaraan Analisis penelitian menggunakan microsoft excel.Dari analisis didapat Kebutuhan luas Ruang Parkir pada jalan mangunsarkoro  adalah 688,5 m² untuk sepeda motor sedangkan untuk mobil 1437 m². Dan juga hasil kebutuhan ruang parkir yang di dapat yaitu untuk motor 454 ruang , untuk mobil di dapat 125 ruang. Kata kunci :  akumulasi,volume parkir, indeks parkir, durasi parkir, ruang parkir
INDUSTRY 4.0, DIGITALIZATION, AND BIG DATA: PERSPECTIVE OF LOGISTICS AND SUPPLY CHAIN MANAGEMENT
Authors: DORDUNCU Hazar , ORUÇ Zemzem Selin
Published: December 2021

Logistics and supply chain management has been affected by the developments in systems that are being digitized day by day. Along with digitalization, big data obtained from various sources allows logistics and supply chain components to exchange information throughout the process. The information exchange can provide data collection, and the collected data can be analyzed to enhance the logistics and supply chain processes. The purpose of this paper is to cover digital developments, their applications, and their impacts on logistics and supply chain management. Based on this objective, first, the literature review on digitalization, internet of things, big data, data mining is presented. Second, the theoretical explanation on how these concepts are utilized and also impact upon the traditional supply chain processes is provided.
Investigation of frictional impact on polyester yarn during knitting
Authors: AFZAL ALI , WAQAR RAJPUT ABDUL , JAMSHAID HAFSA , HUSSAIN SAJID , SIDRA BATOOL SYEDA , ALI USMAN
Published: December 2021

The usage of polyester (PET) in fabrication is increasing day by day due to its properties, ease of physical and chemical
modification. The aim of this work is to understand the effect of temperature on Polyester (PET) during knitting. For
checking the rise of temperature Infrared (IR) camera is used. Microscopic images are used for studying the effect of
temperature on fibre/yarn structure. Morphological analysis is also done by X-ray diffraction (XRD) which shows
disturbance of polymeric chains, causing change in crystal size due to elevated temperature. The beads formation and
filament breakage are clearly seen in images. Due to this knitting fault, shade variation after dyeing occurred. It is
concluded that structural morphology of polyester yarn changes due to friction of yarn with knitting machine parts. Fabric
appearance and fabric quality also disturbed which leads to rejections and high losses.
Ligadura de la vena cava inferior en la insuficiencia cardiaca irreductible
Authors:   , Abella Julio César
Published: December 2021

Si bien la ligadura de la vena cava inferior se la había efectuado por autores extranjeros como indicación profiláctica en la tromboflebitis séptica de la pelvis o inyección puerperal, y en la flebotrombosis de los miembros inferiores para evitar la embolia pulmonar, o bien en las neoplasias retroperitoneales que invadían dicha vena, su indicación en el tratamiento de la insuficiencia cardíaca irreductible es mérito de los profesores argentinos P. Cosio, J. Perianes y R. Vedoya. Esta intervención quirúrgica tiene por fin el de remediar, o sinó aliviar el sufrimiento y la gravedad que implica el estancamiento sanguíneo en el pequeño círculo, es decir, el llamado pulmón cardíaco.
Lucha médico-social contra las cardiopatías reumáticas
Authors:   , Zabala Pedro Raúl
Published: December 2021

La frecuencía creciente de las afecciones cardiovasculares en estos últimos años, es un hecho concreto que constatan las estadísticas de todos los países civilizados del mundo. Publicaciones cada voz más numerosas destacan la gravedad da este problema, haciendo notar todas ellas, sin excepción, la forma alarmante en que han crecido los índices de morbimortalidad. La estadística moderna llevada al terreno de los problemas médico-sociales por los norteamericanos, ha permitido a los investigadores de ese país constatar que en 1900 el índice de mortalidad por cardiopatías era 132 por cada 100.000 habitantes y desde 1920 las cifras progresan.
Antecedents of Organizational Change and Its' Consequence towards Organizational Performance
Authors: Tua LG Lambas Marasi , Kurniawati Kurniawati
Published: December 2021

Objective - The research was conducted to identify the positive influence of transformational leadership and organizational commitment towards organization change and the influence of change on learning and its' implication onorganizational performance. Methodology/Technique - The research design method is a hypothesis-testing approach. Units of research analysis areemployees of BUKU 3 and BUKU 4 Banks in Jakarta who have a supervisory function. The study data is cross-sectional obtained in a specified time period. Data was obtained through distributing online questionnaires containing statements to be responded with a minimum of 365 respondents required. Structural Equation Model was used to test the model of the research and AMOS software is used for data processing. Finding - The major finding of the research is that transformational leadership is not directly related to positive performance of the organization but more on how transformational leaders are able to manage organizational change that in the end will have a positive impact on organization performance.Organizational change also perceived has no positive impact on learning and learning also has no direct and mediating impact on positive organizational performance. Novelty - Type of Paper - Keywords: Change; Leadership; Organizational Commitment; Organizational Change; Organizational Learning; Organizational Performance.
How to Improve the Performance of Micro, Small, and Medium Enterprises?
Authors: Wulandari Ririn , Koe Wei-Loon
Published: December 2021

Objective - The COVID-19 pandemic has worsened economic conditions and jeopardized the performance of many micro, small and medium enterprises (MSMEs) in Indonesia. So the question arises of how to improve its performance so that MSMEs can maintain their survival in conditions like this. This study aims to answer these problems, namely to analyze the influence of management characteristics on MSME business performance with innovation as a mediator. The population in this study is MSMEs from various types of businesses in Indonesia.

Methodology/Technique - A total of 123 samples were selected by stratified judgment sampling. Data were collected through self-administered questionnaires.

Finding - Data analysis using structural equation model (SEM) partial least squares (PLS) program.

Novelty - Based on the analysis conducted, it can be concluded that to improve the performance of MSMEs, management characteristics need to be strengthened by efforts to create innovation, because without strengthening innovation, only having adequate management characteristics will not increase MSME performance.

Type of Paper - Empirical

Keywords: Characteristics; Innovation; Micro small and medium enterprises (MSMEs); Performance

JEL Classification: M19
Developing Quality Hospitality Students Through Simulation and Experiential Learning asa Guide for Hospitality Education
Authors: Tung Tran Minh
Published: December 2021

Objective - Teaching quality is more and more profoundly decisive for the achievement of higher educational institutions. On this background, Games-Based Learning (GBL) and Experiential-Based Learning (EBL) are the key teaching methodologies which are often used to enhance the teaching-learning quality by assisting both teachers and students gain their objectives. Teaching in the Age of Covid-19 is also another challenge for most of the Educators. Given the importance of the topic in university, the aim of this research is to present an organized review of the literature on the use of GBL as a tool to boost the distinction and the excellence of the teaching process in general, and, in particular, the teaching of hospitality management.

Methodology/Technique - The work searched mainly the most appropriate literature on the application of gamification to educational contexts. The empirical analysis of a game-based project assigned to 27 players, who are Hospitality Students at FPT University Danang, has shown very significant results.

Finding - One of the primary outcomes of this research is to describe theoretical approaches mainly to GBL, then EBL and provide a conceptual model that gathers the contribution of various studies and make way for in future deeper research. Another important finding is the gradual integration of various types of experiential learning activities into a hospitality and tourism management syllabus.

Novelty - The significance of the research results shows that he best of both academic and reality world should be closely connected in purpose so as to make the teaching-learning more engaging, more fun and more efficient.

Type of Paper - Empirical

Keywords: Games-Based Learning; Simulation and Experiential Learning, PBLs, Learning in Covid-19 Age, Hospitality Education.

JEL Classification: I23, A22,Z32
Perilaku Pemeliharaan Kebersihan Mulut Pengguna Gigi Tiruan Sebagian Lepasan Akrilik
Authors: Herwanto Adine V. K. , Mintjelungan Christy N. , Wowor Vonny N. S.
Published: December 2021

Abstract: Behavior of maintaining denture hygiene is an important factor in the success of denture care. Poor denture hygiene maintenance can cause problems for dental and oral health such as caries, gingivitis, stomatitis, xerostomia, candidiasis, and periodontal disease, especially in users of acrylic-based removable dentures. This study was aimed to obtain the oral hygiene maintenance behavior of denture wearers. This was a literature review study using secondary data sources of the Google Scholar and PubMed databases with keywords, as follows: maintenance behavior, oral hygiene, denture users, acrylic removable partial dentures. Data selection were carried out based on inclusion and exclusion criteria, followed by a critical appraisal. The selection results in six literatures consisting in the form of cross-sectional studies. The results showed that the hygiene behavior of acrylic-based removable dentures in the community was classified as poor. In conclusion, maintenance of oral hygiene behavior of acrylic removable partial denture wearers is classified as poor due to lack of knowledge of most denture wearers to keep their dentures clean.Keywords: maintenance behavior of oral hygiene; denture wearers; acrylic removable partial dentures Abstrak: Perilaku memelihara kebersihan gigi tiruan merupakan faktor penting dalam keberhasilan perawatan gigi tiruan. Pemeliharaan kebersihan gigi tiruan yang kurang baik dapat menimbulkan masalah bagi kesehatan gigi dan mulut seperti karies, gingivitis, stomatitis, xerostomia, kandidiasis, dan penyakit periodontal, terutama pada pengguna gigi tiruan lepasan berbasis akrilik. Penelitian ini bertujuan untuk mengetahui perilaku pemeliharaan kebersihan mulut pengguna gigi tiruan sebagian lepasan (GTSL) akrilik. Jenis penelitian berbentuk literature review dengan menggunakan sumber data sekunder yang diperoleh melalui pencarian database Google Scholar dan PubMed dengan kata kunci: maintenance behavior, oral hygiene, denture users, acrylic removable partial dentures. Seleksi data dilakukan berdasarkan kriteria inklusi dan eksklusi, dilanjutkan dengan critical appraisal. Hasil seleksi mendapatkan enam literatur berbentuk cross-sectional study. Data hasil kajian menunjukkan bahwa perilaku pemeliharaaan kebersihan gigi tiruan lepasan berbasis akrilik pada masyarakat tergolong kurang baik. Simpulan penelitian ini ialah pemeliharaan kebersihan gigi mulut pengguna gigi tiruan sebagian lepasan akrilik masih tergolong kurang baik karena kurangnya kesadaran dan pengetahuan dari sebagian besar masyarakat mengenai pentingnya menjaga kebersihan gigi tiruan.Kata kunci: perilaku pemeliharaan kebersihan mulut; pengguna gigi tiruan; gigi tiruan sebagian lepasan akrilik
Comparative investigation of coherence factor weighting methods for an annular array photoacoustic microscope
Authors: Suzuki Riku , Shintate Ryo , Ishii Takuro , Saijo Yoshifumi
Published: December 2021

To achieve fine visualization of the peripheral microvascular networks, we have developed a photoacoustic (PA) microscope equipped with a four-channel annular array transducer. The quality of PA images processed with delay-and-sum (DAS) method is degraded by off-axis signals. Thus, to achieve higher image quality for the PA microscope, this study evaluated the efficacy of the five coherence factor weighting methods: coherence factor, sign coherence factor, phase coherence factor, circular coherence factor, and vector coherence factor. Using PA signals acquired from a 100 μm microtube and the skin microvessels, we generated PA images with DAS and one of the weighting methods, and quantitatively evaluated the image quality by calculating the sharpness, contrast ratio, and contrast-to-noise ratio. The results showed the phase coherence factor and the vector coherence factor methods were more effective to clearly visualize the microvascular structure, in terms of vessel sharpening and noise suppression performances, than the other methods.
Monolithically integrated green-to-orange color InGaN-based nanocolumn photonic crystal LEDs with directional radiation beam profiles
Authors: Yanagihara Ai , Kishino Katsumi
Published: December 2021

In this study, the monolithic integration of LEDs with different emission colors (wavelengths of 543, 573, and 597 nm) with the directional radiation profiles was demonstrated. InGaN/GaN nanocolumn arrays ordered in a triangular lattice were prepared side by side, changing the diameter of the n-GaN nanocolumn (D
n-GaN). The periodic arrangement of the nanocolumns led to the photonic crystal (PC) effect. The photonic band edge wavelength (λ
B) and the InGaN bandgap were controlled by the D
n-GaN. By controlling λ
B closely at the bandgap wavelength, the PC effect provided directional beam radiation from the LEDs with radiation angles of approximately ±30°.
Polarization-independent broadband achromatic metalens in the mid-infrared (3–5 μm) region
Authors: Xiong Wenhui , Sha Chenchen , Ding Jianping
Published: December 2021

With superior capabilities for light manipulation and wavefront shaping, the metasurface recently has caught growing attention. However, the presence of chromatic aberration hinders metasurfaces, especially metalenses, from wider applications. Here, we design a polarization-independent broadband achromatic focusing metalens in the mid-infrared region, which covers continuous bands in 3–5 μm. Numerical simulation shows that different wavelengths can be focused to the same plane with a nearly diffraction-limited resolution, and can achieve an average focusing efficiency of nearly 70% in the whole bandwidth. We expect that our approach can underpin the development of integrated and mid-infrared imaging and detection.
Countercyclical Financing as a Tool for Facilitating Investment Activity in Russia: An Overview of Approaches
Authors: Tsekhomskiy N. V. , Tikhomirov D. V.
Published: December 2021

Aim. The presented study aims to investigate the use of the project financing mechanism to increase the investment activity of businesses and to identify opportunities for the allocation of cyclical risks and the corresponding development of project financing conditions.Tasks. The authors briefly overview the investment climate and investment activity of large businesses in Russia; provide a general description of the project financing mechanism in the implementation of investment projects and the allocation of risks among participants; consider the factor of price volatility and the proposed structuring of project financing with allowance for potential changes in prices for the project’s products.Methods. This study uses general scientific research methods (analysis, synthesis, induction, deduction), including analysis of public information through the example of major Russian companies, analysis of the key indicators of investment activity, analysis of risk allocation options in the financial flows of projects. Specific methods of financial analysis are also used to examine the results of the implementation of investment projects.Results. The key indicators of investment activity of the major Russian companies are presented. The possibility of using the mechanism of project financing and risk allocation among participants is determined.Conclusions. The investment activity of a considerable part of large Russian businesses is moderate. At the same time, there is a huge potential for growth using either internal funds (profits, accumulated cash balances) or project financing instruments. An example of using the mechanism of accelerated repayment of debt financing is provided.
The Impact of COVID-19 on Consumer Habits: New Aspects of Research
Authors: Neganova V. P.
Published: December 2021

Aim. The presented study aims to propose and substantiate new research directions with allowance for the impact of COVID-19 on consumer habits.Tasks. The authors investigate the problem of the pandemic’s impact on common consumer behavior stereotypes; identify major trends in changing consumer habits; propose new directions for research on the transformation of consumer habits in the context of the COVID-19 pandemic.Methods. This study is based on specialized scientific publications accessible via the Scopus and WoS databases and uses complementary methods of analysis, synthesis, comparison, generalization, etc.Results. Isolation and social distancing measures taken during the COVID-19 pandemic have changed consumer habits. Consumers are learning to improvise based on their existing habits and are developing new habits associated with the digitalization of sales, changing demographics, and innovative ways that allow them to solve the problems of blurring boundaries between work, leisure, and education. The authors propose several new research questions for the next decade.Conclusions. Isolation and social distancing in the fight against the COVID-19 virus have significantly changed consumer behavior, limiting consumption by time and location. Due to the flexibility of time and the fixed nature of location, consumers have learned to improvise creatively and innovatively. The use of digital technologies can fundamentally and irrevocably change many existing habits. Government policy also forms new consumption habits, especially in public areas: airports, concert halls, public parks, etc. The most important objective is to investigate ongoing processes and to implement the obtained scientific results in the activities of government authorities, educational institutions, and marketing activities of Russian companies.
Overview of the Motorcycle Market (For the Purpose of Creating a Platform for Electric Transport)
Authors: Altoukhov A. V. , Khar’kov V. P.
Published: December 2021

Aim. This article presents the results of an analytical study (overview) of the Russian motorcycle market as a projected element of an electric transport platform based on the analysis that includes information about global trends. Tasks. The authors examine the global and Russian electric motorcycle markets, legal peculiarities and advantages of using electric motorcycles in the Russian Federation, and major demand factors.Methods. This study uses the methods of analysis and synthesis of information from Russian and foreign sources publicly available on the Internet and the method of expert assessment.Results. Electric motorcycles are shown to be a promising market, both at the domestic and global levels. Major trends and demand factors of this market in Russia as well as legal peculiarities and advantages of using these vehicles are identified and analyzed.Conclusions. Positive trends indicate that it is possible to create a Russian platform for electric transport that would include electric motorcycles. This study will be useful to anyone interested in the topics of motorcycles, electric transport, and platform solutions in this area. In addition, this article can serve as a basis for further research on this topic.
Analisis Potensi Fermentasi Tepung Daun Binahong Anredera Cordifolia Dengan Metode Trial End Error Sebagai Pakan Tambahan Pada Ayam Petelur
Authors: Salim Andi Randi , Ansar Muhammad , Al Hijazi Alif Fachrur , Idrus Muhammad , Firmiaty Sri
Published: December 2021

Ayam petelur merupakan ternak yang mudah stress dan rentan terhadap penyakit. Guna mengatasi keadaan tersebut perlu dicari alternatif bahan herbal yang tidak menimbulkan residu pada telur ayam yaitu dengan memberikan pakan tambahan fermentasi tepung daun binahong. Binahong merupakan salah satu tanaman yang dapat meningkatkan vitalitas dan daya tahan tubuh. Kandungan fitobiotik pada tepung daun binahong (fenol 85,30 mg/kg, total flafonoid 47,40 mg/kg, saponin 66,00 mg/kg, dan alkaloid 2,60 mg/kg). Unggas yang memiliki sistem pencernaan tunggal kurang baik dalam mencerna pakan berserat kasar tinggi. Kebutuhan serat kasar pada ayam petelur maksimal 7% maka, dilakukan analisis manfaat fermentasi menggunakan EM4. Dalam penelitian terdahulu menyebutkan bahwa EM4 menghasilkan sejumlah besar enzim mencerna serat kasar seperti selulase dan mannase. Keuntungan Lactobacillus dalam EM4 dalam mencerna serat kasar adalah karena bakteri tidak menghasilkan serat kasar dalam aktivitasnya, sehingga mereka lebih efektif dalam menurunkan serat kasar. Fermentasi dapat meningkatkan nilai gizi dan juga palatabilitas. Pemberian pakan tambahan fermentasi tepung daun binahong  sebagai feed adiktif memiliki potensi terhadap peningkatkan sistem imun sehingga ayam sehat, maka produksi telur akan meningkat dan stabil.
Laying hens are animals that are easily stressed and susceptible to disease. In order to overcome this situation, it is necessary to find alternative herbal ingredients that do not cause residues in chicken eggs, namely by providing additional feed with fermented binahong leaf flour. Binahong is one of the plants that can increase vitality and endurance. Phytobiotic content in binahong leaf flour (phenol 85.30 mg/kg, total flavonoids 47.40 mg/kg, saponins 66.00 mg/kg, and alkaloids 2.60 mg/kg). Poultry that has a single digestive system is not good at digesting high crude fiber feed. The need for crude fiber in laying hens is a maximum of 7%, so an analysis of the benefits of fermentation using EM4 was carried out. In previous studies, it was stated that EM4 produces a large number of enzymes digesting crude fiber such as cellulase and mannase. The advantage of Lactobacillus in EM4 in digesting crude fiber is that bacteria do not produce crude fiber in their activity, so they are more effective in reducing crude fiber. Fermentation can increase nutritional value and also palatability. The addition of fermented binahong leaf flour feed as an addictive feed has the potential to increase the immune system so that chickens are healthy, so egg production will increase and be stable.
Analisis Pengembangan Usaha Tani Kakao Di Desa Taulo Kecamatan Alla Kabupaten Enrekang
Authors: Mirnawati Mirnawati , Nuddin Andi , Yusriadi Yusriadi
Published: December 2021

Penelitian ini dilaksanakan Di Desa Taulo Kecamatan Alla Kabupaten Enrekang dari bulan November 2020 sampai dengan bulan Januari 2021. Penelitian bertujuan untuk mengetahui pendapatan yang diperoleh dalam usaha tani kakao, kelayakan usaha tani kakao dan strategi pengembangannya dengan menggunakan metode analisis kelayakan dan analisis Interpretativ Stuktural Modelling ISM dengan pengambilan data melalui wawancara dengan pengisian kuisioner untuk analisis pendapatan dan kelayakan sebanyak 32 orang responden dan 16 responden untuk analisis ISM. Hasil penelitian ini menunjukan bahwa tingkat kelayakan 2,25 dan Hasil analisis ISM diperoleh program strategi yang strategis adalah : (2) Pembinaan kelompok tani/gapoktan, (1) Rehabilitas tanaman kakoa, (6) Peningkatan kualitas produk/mutu biji kakao, (4) Peningkatan peran penyuluhan, (3) Pengelolaan pasca panen, (5) Pengembangan produktivitas lahan, (8) Pengembangan pemasaran produksi, (12) pemberantasan hama dan penyakit, (11)  Peningkatan sarana produksi, (10) Peningkatan agroimput, (7) Pengstabilan harga.
ABSTRACT
This research was conducted in Taulo Village, Alla District, Enrekang Regency from November 2020 to January 2021. The study aims to find out how the income earned in cocoa farming is, how is the feasibility of cocoa farming and how is the development strategy using feasibility analysis methods and Interpretative analysis. ISM Structural Modeling with data collection through interviews by filling out questionnaires for income and feasibility analysis as many as 32 respondents and 16 respondents for ISM analysis. The results of this study indicate that the feasibility level is 2.25 and the results of the ISM analysis obtained that strategic strategic programs are: (2) Fostering farmer groups/gapoktan, (1) Rehabilitation of cocoa plants, (6) Improving product quality/quality of cocoa beans, (4 ) Increasing the role of extension, (3) Post-harvest management, (5) Development of land productivity, (8) Development of production marketing, (12) eradicating pests and diseases, (11) Increasing production facilities, (10) Increasing agro-imput, (7) Price stabilization
Pelaksanaan Pengembangan Keprofesian Berkelanjutan Bagi Guru Sekolah Dasar
Authors: Basri Syamsurijal , Nurochmah Andi , Syamsu K
Published: December 2021

Tujuan penelitian untuk mengetahui: (1) Gambaran Pelaksanaan Pengembangan Keprofesian Berkelanjutan (PKB) bagi guru Sekolah Dasar (2) Faktor pendukung dan penghambat dalam Pelaksanaan Pengembangan Keprofesian Berkelanjutan bagi guru Sekolah Dasar. Jenis penelitian ini adalah jenis penelitian kualitatif. Hasil penelitian menunjukkan bahwa (1) Pelaksanaan Pengembangan Keprofesian Berkelanjutan bagi guru Sekolah Dasar melalui proses perencanaan program sepenuhnya dilaksanakan melalui forum Kelompok Kerja Guru. Pelaksanaan program dilakukan dengan keikutsertaan para guru dalam berbagai pelatihan, diimplementasikan ke dalam karya inovatif seperti media pembelajaran dan pembuatan video pembelajaran. Evaluasi program dilakukan dengan pembuatan evaluasi diri guru dan laporan yang terkait dengan program. (2) Faktor pendukung pelaksanaan Pengembangan Keprofesian Berkelanjutan adalah kemudahan sumber informasi yang diperoleh dari berbagai pihak yang terpusat pada forum Kelompok Kerja Guru dan sikap antusiasme guru yang tinggi mengikuti program, dukungan kepala sekolah. Sedangkan faktor penghambat adalah belum adanya anggaran khusus yang disiapkan dalam pelaksanaan Pengembangan Keprofesian Berkelanjutan , waktu guru yang terkadang bertabrakan dengan kegiatan lain, dan keterbatasan jaringan internet yang dimiliki untuk melaksanakan Pengembangan Keprofesian Berkelanjutan.
The purposes of the study are to discover: (1) an overview of the Implementation of Continuous Professional Development (PKB) for primary School Teachers (2) Supporting and inhibiting factors in the Implementation of Continuous Professional Development (PKB) for primary School Teachers. This type of research is qualitative research using descriptive methods. The results of the study reveal that (1) an Overview of the Implementation of Continuous Professional Development (PKB) for primary school teachers of planning the program PKB fully implemented through the forum of the KKG. The implementation of the program PKB carried out with the participation of teachers in various training then implemented into the innovative work as a medium of learning and the making of the video learning. Program evaluation of PKB is also done with the manufacture of self-evaluation and teacher reports. (2) the supporting Factors in the implementation of PKB among them is the ease of the source of the information obtained from the various parties centralized on the forum of KKG and the attitude of the enthusiasm teachers is high when received information associated with the PKB, especially the support provided by head master of the school. While the inhibiting factors are not yet available funds, time teacher sometimes located in other activities, and the limitations of the internet network for PKB activities.
Efektivitas Lembar Kerja Peserta Didik (LKPD) Menggunakan Model Pembelajaran Discovery Learning Terhadap Kemampuan Pemahaman Konsep dan Pemecahan Masalah Matematis
Authors: Suriani Teni , Devita Dewi
Published: December 2021

Kemampuan pemahaman konsep dan pemecahan masalah matematis merupakan tujuan mata pelajaran matematika dan diharapkan dapat dikembangkan dalam pembelajaran matematika. Berdasarkan observasi yang dilakukan pada siswa kelas VII SMP N 38 Padang tahun pelajaran 2019/2020 diperoleh informasi bahwa siswa sering mengalami kesulitan ketika mengerjakan soal cerita atau soal yang berkaitan dalam kehidupan sehari-hari tanpa disertai dengan ilustrasi gambarnya. Hal ini disebabkan pembelajaran matematika masih cenderung berfokus pada buku paket dan LKPD. LKPD yang ada disekolah masih kurang bervariasi dan belum ada langkah-langkah kerja siswa untuk menemukan dan mengkonstruksi sendiri konsep pembelajaran. Salah satu model pembelajaran yang dapat dikembangkan adalah dengan menggunakan model Discovery Learning. Discovery learning merupakan pembelajaran dimana ide atau gagasan disampaikan melalui proses penemuan. Penelitian ini memiliki  tujuan  menghasilkan  dan  mengembangkan  lembar  kerja  peserta  didik (LKPD) dengan menggunakan model pembelajaran Discovery Learning yang efektif. Jenis penelitian ini menggunakan model pengembangan development research tipe formative evaluation menurut pandangan Tessmer. Efektivitas diselidiki melalui tes kemampuan pemahaman konsep dan pemecahan masalah matematis siswa yang dianalisis dengan menggunakan rubrik kemampuan pemahaman konsep dan pemecahan masalah. Hasil uji Efektivitas LKPD kemampuan pemahaman konsep dan pemecahan masalah matematis siswa diperoleh persentase ketuntasan belajar siswa kelas eksperimen dengan menggunakan LKPD berbasis discovery learning lebih tinggi dari pada siswa kelas kontrol.
IMPLEMENTASI PEMERATAAN PEMBANGUNAN DENGAN HOTEL TENTREM DAN ZEST DALAM PROGRAM CSR (CORPORATE SOCIAL RESPONSIBILITY)
Authors: Iwana Safira Zata , Setiawan Bakti
Published: December 2021

Pemerataan telah digaungkan sebagai jargon baru dalam pembangunan, baik pembangunan pusat kota maupun kawasan pinggiran kota. Kota Yogyakarta memenuhi pembangunan perkotaan dengan membuka keran investasi bagi perusahaan yang dapat mendukung kegiatan pariwisata di dalam kota. Salah satunya adalah izin pembangunan hotel. Proses ini tidak terlepas dari keberadaan hotel sebagai perusahaan sosial atau Corporate Social Responsibility (CSR) yang diharapkan dapat mendukung pemerataan pembangunan di wilayah sekitarnya. CSR itu sendiri harus meningkatkan perekonomian, kualitas lingkungan, dan kualitas sosial masyarakat secara merata. Penelitian ini menggunakan metode deskriptif kualitatif dan metode pengumpulan data melalui wawancara mendalam dengan responden yang dianggap kompeten. Hasil penelitian menunjukkan bahwa terdapat perbedaan pelaksanaan program CSR di kedua hotel tersebut. Perbedaan bintang yang dimiliki kedua hotel tidak menjamin pemerataan pembangunan; penyebab internal dan eksternal lainnya mempengaruhinya. Sebagian besar program yang dihasilkan merupakan program jangka pendek dan bukan program pemberdayaan masyarakat, sehingga proses pemerataan pembangunan melalui program CSR belum tercapai.
Sustainability of cryptocurrency in blockchain technology for business development in African Countries
Authors: Mbaye Mamadou
Published: December 2021

The aim of the paper is to analyze the sustainability of cryptocurrency in blockchain technology in African countries for securing financial business transactions. Following the subprime crisis that shook the world economy, a new perception of money has emerged. It is a fully digital currency whose transactions are made through a distributed network. This algorithm-encrypted currency, reputed to be tamper-proof, transparent and inclusive, relies on a distributed network called the Blockchain. By comparison with traditional registers in which operations are paginated and successively recorded, transactions in blockchain technology are aggregated within the chain of blocks. It is decentralized since it is replicated on several geographic sites around the world. It enables peer-to-peer transactions, automated in real-time, reliable, secure, without intermediaries and non-repudiable. To ensure maximum security during financial transactions, blockchain miners use cryptography. This distributed system is, therefore, a major technological innovation capable of securing the financial infrastructure and mitigating failures by reducing operational risks. According to our analysis based on the Merkle tree model and blockchain energy consumption, the sustainability of cryptocurrency is a major issue for developing countries. Especially in Africa, its practicality poses a number of constraints.