bluuebunny/crossref_metadata_2025 huggingface dataset:
Value-based Health Care for Prostate Cancer Centers by Implementing specific Key Performance Indicators using a Balanced Score Card
Authors: Radtke Jan Philipp , Albers Peter , A Boris Hadaschik , Graefen Markus , P Christian Meyer , Behr Björn , Nueesch Stephan
Published: August 2023

Background: 18 years ago Porter and Teisberg published their
landmark manuscript on “Redefining Health Care.” As part of the
implementation of their Full Cycle of Care, instruments have been
developed to achieve value-based medicine, such as consistent commitment
to measurability (“benchmarking”). One of these instruments is the
Balanced Scorecard (BSC). This is an organizational tool for
implementing strategies in institutions, which is constantly being
further developed and given new forms of application. The strength of
BSCs lies in their ability to integrate multiple perspectives. Here we
propose the first BSC for prostate cancer (PC) treatment.
Methods: BSC are used to assess performance in healthcare
organizations across four dimensions: financial, patient and referrer,
process, and learning and development. This study aimed to identify key
performance indicators (KPIs) for each perspective. A systematic
literature search was conducted using multiple databases and specific
search terms to identify KPIs for PC care, excluding case reports,
conference abstracts, and editorials, and without assessing
methodological quality due to the study’s nature. Results: In
the present study, a PC-specific BSC and KPIs were defined for the four
classic perspectives, as well as for a newly developed disease and
outcome perspective of PC, including patient-related parameters from the
German Cancer Society (DKG) and the International Consortium for Health
Outcomes Measurement (ICHOM). Conclusions: The developed BSC
provides a comprehensive set of perspectives for an Integrated Practice
Unit or center in PC care, ensuring that the indicators remain
manageable and applicable. The BSC facilitates value creation in line
with Porter’s Full Cycle of Care by systematically collecting and
providing economic, personnel, and medical results, actions, and
indicators.
Simulating the role of biogeochemical hotspots in driving nitrogen export from dryland watersheds
Authors: Ren Jianning , Hanan Erin , Greene Aral C , Tague Christina , Krichels Alexander , Burk William , Schimel Joshua , Homyak Peter M
Published: August 2023

Climate change and nitrogen (N) pollution are altering biogeochemical
and ecohydrological processes in dryland watersheds, increasing N
export, and threatening water quality. While simulation models are
useful for projecting how N export will change in the future, most
models ignore biogeochemical “hotspots” that develop in drylands as
moist microsites become hydrologically disconnected from plant roots
when soils dry out. These hotspots enable N to accumulate over dry
periods and rapidly flush to streams when soils wet up. To better
project future N export, we developed a framework for representing
hotspots using the ecohydrological model RHESSys. We then conducted a
series of virtual experiments to understand how uncertainties in model
structure and parameters influence N export. Modeled export was
sensitive to the abundance of hotspots in a watershed, increasing
linearly and then reaching an asymptote with increasing hotspot
abundance. Peak streamflow N was also sensitive to a soil moisture
threshold at which subsurface flow from hotspots reestablished, allowing
N to be transferred to streams; it increased and then decreased with an
increasing threshold value. Finally, N export was generally higher when
water diffused out of hotspots slowly. In a case study, we found that
when hotspots were modeled explicitly, peak streamflow nitrate export
increased by 29%, enabling us to better capture the timing and
magnitude of N losses observed in the field. This modeling framework can
improve projections of N export in watersheds where hotspots play an
increasingly important role in water quality.
Exploring a Mathematics Teacher’s Teaching Experiences based on Learning-centered Community
Authors:   Research Institute of Science Education, Jeong Myeonghun , Shin Hyangkeun , Jun Youngcook
Published: August 2023

The purpose of this study is to improve the quality of classroom teaching by qualitatively exploring the teaching experiences of teachers striving to provide a community that encourages human learning activities among students and opens a field of learning that students can learn for themselves. We explored the vivid experiences of field lessons through interviews with a mathematics teacher who took a learning community training and put it into practice in classroom teaching. Based on the three interviews conducted between 2013 and 2016, the results of interpretation of the teacher’s philosophy and teaching methods regarding community lessons in learning were derived and presented as a case study method. Teacher L showed that after meeting the learning community, some students felt happy and rewarded in the end trying to make them feel enjoyable without being left out of class. In addition, she was encouraging learning to take place from the standpoint of each student through a group-based activity class that she invented. At the end, she added that many lessons of field teachers have to be released and can be improved in a better direction through communication, cooperation, and sharing of feedback.
A Case Study of Real-Time Art Education in a Virtual Space: Focusing on Theater Classes using Zoom and Padlet
Authors:   Research Institute of Science Education, Kim Yunkyoung , Park Yeongji , Hur Jungmi
Published: August 2023

This study aimed at examining real-time non-face-to-face distance art education cases and to draw implications for art education in schools in the untact era. Due to the COVID-19 outbreak, art education in schools has made it difficult to take advantage of the existing advantage of an aesthetic experience through face-to-face meetings. Researchers who had been practicing art education in schools through drama/theater were also asked to switch to non-face-to-face classes. To this end, the researchers developed and applied a real-time non-face-to-face remote theater class program using Zoom and Padlet for first-year middle school students from September to October 2020. We obtained the following results of this case study by interpreting the collected data such as survey, observation data, and artifacts etc.
First, we tried to form a rapport with students who had few opportunities to meet each other due to Corona 19 through a strategy of establishing relationships even on the screen. Second, we provided students with an opportunity to collaborate, thereby providing an experience of joint achievement. The content of the program was to share experiences about what they have experienced, write a play script based on this, and then put on a performance together. As for the method of the program, a relationship was formed using various theatrical techniques, joint writing was performed using Padlets, and a Zoom-based reading play was performed. In this case, despite the unusual situation of ‘untact’, through the aesthetic activity of ‘art education’ in the limited space ‘in school’, the possibility of art education in schools in the untact era was realized and a vision was presented.
College Students’ Class Satisfaction and Counseling before and after the COVID-19
Authors:   Research Institute of Science Education, Lim Kyunghee
Published: August 2023

This paper aimed at improving the qualities of untacted the untact online classes by examining the college students’ satisfaction with class teaching and counseling before and after the COVID-19 diffusion. The data were collected from the students at one of Korea’s largest National University in Jeonnam. The students’ class evaluation data, the professors’ counseling data, and the questionnaires about college life, class preference, and current concerns, etc. were used. In addition, the professional counselors’ phone counseling data and the students’ opinion about the untact online classes were analyzed. The findings were as follows. First, there was little difference in students’ class satisfaction before and after the COVID-19. Most students preferred the teaching style focused on lecture. Second, there was some decrease in college life adjustment and a lot in relationships with friends and professors. Third, satisfaction with counseling and guidance was down, in particular, with vocational guidance. Finally, the current concerns of student were academic and vocational tasks. Based on the results, supporting plans required under ongoing untact class and college life were suggested. Considerations for the faculty and staff of university in teaching and counseling were discussed.
Suggestions for Convergence and Complex Teaching and Learning Methods and Curriculum Reorganization through Historical Development of the Limit Concept of Calculus in Field Education
Authors:   Research Institute of Science Education, Kim KwonWook
Published: August 2023

In the 21st century, the knowledge and information society is rapidly changing and knowledge is exploding due to the unthinkable development of science and technology. Considering this, it is only natural that there should be internal and external changes in the existing secondary mathematics textbooks and university liberal arts mathematics.
The purpose of this study is to examine the fusion and complex elements of the historical development of extreme concepts in the Greek, Middle, Modern, and 17th and 19th centuries, and to suggest the convergence and learning methods and curriculum that can be presented to students when teaching calculus in field education.
Through this study, we find that the limit concepts currently dealt with in the secondary education field are historical products created by convergence over a long period of time, and, according to the learning goal of the limit concept, teaching and learning methods such as project-based learning (PBL), creative problem-solving learning, heuristic learning, mathematicaliation inquiry learning using ICT, and question-and-answer and discussion classes were proposed. In addition, this study only discussed limit concepts, but suggests that other problems such as number concepts, equation and function concepts, geometric problems, probability and statistics problems in secondary school content are long-standing historical products. And it suggests the need to reflect this when reorganizing the subject.
A Study on the Exploration of Law-Related Education Using Arts
Authors:   Research Institute of Science Education, Kim Ja-Young
Published: August 2023

This study aims to clarify the need for the use of art in law-related education and to explore specific ways. Law-related education requires creativity, imagination, insight, etc, in that it aims not only to acquire legal knowledge but also to cultivate legal thinking ability and positive legal awareness of law. However, traditional law-related education has been criticized for focusing on conveying complex legal knowledge and failing to attract students’ interest and serve as a value education. The use and application of art in law-related education is expected to contribute to overcoming the limitations of existing cases and content-oriented law-related education and fostering convergent talents. In this study, it was confirmed that it is necessary to use various forms of art such as painting, photography, music, and dance in law-related education, and to use art as a material for class and as an activity and expression. In addition, it was confirmed that when using art in law-related education, it is necessary to take an approach that considers cognitive and contextual suitability, relevance to the core content of law-related education, and complementary use between various arts. Based on this, examples of law-related education teaching and learning methods using art were explored, and specific examples of law-related education using visual art, law-related education using literary works, and law-related education using movies were presented, respectively. It is hoped that the use of art in law-related education can be realized more actively based on the discussion of this study.
Nonlinear maps preserving the mixed triple *-product between factors
Authors: Zhang Fangjuan
Published: August 2023

Let A and B be two factors. In this paper, it is proved that a not
necessarily linear bijective map ? : A ? B satisfies ?([A, B]* ? C) = [?(A),
?(B)]* ? ?(C) for all A, B,C ? A if and only if ? is a linear *-isomorphism,
a conjugate linear *-isomorphism, the negative of a linear *-isomorphism, or
the negative of a conjugate linear *-isomorphism.
Unified Massera type theorems for dynamic equations on time scales
Authors: Koyuncuoğlu Halis
Published: August 2023

In this paper, we aim to obtain Massera type theorems for both linear and
nonlinear dynamic equations by using a generalized periodicity notion,
namely (T, ?)-periodicity, on time scales. To achieve this task, first we
define a new boundedness concept so-called ?-boundedness, and then we
establish a linkage between the existence of ?-bounded solutions and (T,
?)-periodic solutions of dynamic equations in both linear and nonlinear
cases. In our analysis, we assume that the time scale T is periodic in
shifts ?? which does not need to be translation invariant. Thus, outcomes
of this work are valid for a large class of time-domains not restricted to T
= R or T = Z.
Intrinsic prefrontal functional connectivity according to cognitive impairment in patients with end-stage renal
disease
Authors: Park Kang Min , Heo Chang Min , Lee Dong Ah , Huh Hyuk , Park Sihyung , Kim Yang Wook , Lee Yoo Jin , Yoon Hyeok Jin , Park Bong Soo
Published: August 2023

Background: This study aimed to investigate differences in intrinsic prefrontal functional connectivity according to the presence of cognitive impairment in patients with end-stage renal disease (ESRD) using functional near-infrared spectroscopy (fNIRS). Methods: We prospectively enrolled 37 patients with ESRD who had been undergoing hemodialysis for more than 6 months and had no history of neurological or psychiatric disorders. All patients with ESRD underwent the Korean version of the Montreal Cognitive Assessment (MoCA-K) to assess cognitive function. The NIRSIT Lite device (OBELAB Inc.) was used to acquire fNIRS data, and the NIRSIT Lite Analysis Tool program was used to process the data and generate a functional connectivity matrix. We obtained functional connectivity measures by applying graph theory to the connectivity matrix using the BRAPH (brain analysis using graph theory) program. Results: Of the 37 patients with ESRD, 23 had cognitive impairment, whereas 14 patients showed no cognitive impairment. Intrinsic prefrontal functional connectivity was significantly different between groups. Network measures of strength, global efficiency, and mean clustering coefficient were lower in ESRD patients with cognitive impairment than in those without cognitive impairment (4.458 vs. 5.129, p = 0.02; 0.397 vs. 0.437, p = 0.03; and 0.316 vs. 0.421, p = 0.003; respectively). There were no significant correlations between MoCA-K scores and clinical characteristics. Conclusion: We demonstrated a significant association between cognitive function and intrinsic prefrontal functional connectivity in patients with ESRD. ESRD patients with cognitive impairment have reduced connectivity and segregation in the prefrontal brain network compared to those without cognitive impairment.
Financial and Economic Indicators in Shade COVID-19: An Applied Study on the Palestinian Environment
Authors: Awwad Bahaa Sobhi , Razia Bahaa
Published: August 2023

The study investigates whether there are relationships between financial and economic indicators and COVID-19 in the Palestinian environment and whether these relationships are positive or negative. The study sample consisted of data on the study variables during the period from (3/ March -/2020 - 11/November -2021), which represented 21 months. Panel regression analysis was used to examine the study hypotheses and achieve the study objectives. The results showed that there is a statistically significant negative relationship between (market value of stocks, trading volume, change in the Jerusalem index, stock prices, public revenues, and GDP) and COVID-19, while it was statistically positive for the indicators (public debt, internal debt, unemployment, government investment). This paper highlights the financial and economic challenges facing the Palestinian environment during COVID-19. and help future researchers to study possible crisis scenarios and deal with them. The paper presents a vital review of the period of the Corona crisis. It also determines the extent of the Palestinian financial and economic environment's resistance to the repercussions of crises in general and COVID-19 in particular, the study recommends that in light of health crises, it is necessary to increase government spending for health care systems to meet containment requirements.
SOIL CHEMICAL ATTRIBUTES RELATIONSHIPS AROUND THE Araucaria angustifolia TREES IN AGROFORESTRY SYSTEMS
Authors: Vasconcellos Gomes João Bosco , Botosso Paulo Cesar , Longhi-Santos Tomaz
Published: August 2023

This work aimed to understand the relationships between araucaria trees and some abiotic factors (soil type, soil organic C and soil nutrient supply) in agroforestry systems (AFS). Soils of two production areas in south-central region of the state of Parana (Bituruna - B and São Mateus do Sul - M) were characterized and soil chemical attributes were determined in microsites close to araucaria trees. B area presented only “juvenile” trees, while M area was formed by “juvenile” and “adult” trees. According to the multiple linear regression analyses, the soil chemical attributes showed an almost total dependence of the microsites depth. Soil chemical attributes dependence was much more diffuse in relation to the distances from the tree insertion in the soil. The non-metric multidimensional scaling ordination according to soil chemical attributes showed a great overlap of behavior of these tree groups. The chemical attributes comparison generated, to a certain extent, a soil fertility deficiency gradient between the microsites of the three groups of trees (MJ < MA < BJ). AFS with shaded Ilex paraguariensis must consider the replacement of nutrients exported by leaf harvest, which will help in the sustainability of the activity. This includes the environmental services that the AFS promotes by maintaining, or even renewing, of the native trees from the local forest, especially araucaria trees, in a productive system.
Kontribusi PLK Terhadap Kesiapan Menjadi Guru Profesional pada Mahasiswa Pendidikan Teknik Otomotif Universitas Negeri Padang
Authors: Fauzi Zikri , Purwanto Wawan , Chandra R. , Arif Ahmad , Saputra Hendra Dani
Published: August 2023

This study aims to determine how the effect of the implementation of Educational Field Practices (PLK) on readiness to become professional teachers. This research is included in quantitative research because this research uses a lot of numbers, starting from data collection, interpretation of the data, and the appearance of the results of this study which are manifested in numbers. The research was conducted in the Automotive Engineering Department, State University of Padang, with a population of 109 students of Automotive Engineering Education. The results showed that the correlation coefficient value (Rxy) was 0.935 and the determination coefficient value (R2xy) was 0.874 This indicates that there is a positive influence between Educational Field Practices and Readiness to Become Professional Teachers, which means that the longer Educational Field Practices are carried out. students, the higher the Readiness to Become a Professional Teacher.

Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh pelaksanaan Praktik Lapangan Kependidikan (PLK) terhadap kesiapan menjadi guru porfesional. Penelitian ini termasuk dalam penelitian kuantitatif karena penelitian ini banyak menggunakan angka-angka, mulai dari pengumpulan data, penafsiran terhadap data tersebut, serta penampilan dari hasil penelitian ini diwujudkan dalam angka. Penelitian dilaksanakan di Jurusan Teknik Otomotif Universitas Negeri Padang dengan Populasi penelitian sebanyak  109 mahasiswa Pendidikan Teknik Otomotif. Hasil penelitian menunjukkan bahwa nilai koefisien korelasi (Rxy) sebesar 0,935 dan nilai koefisien determinasi (R2x,y) sebesar 0,874 Hal ini menunjukkan bahwa terdapat pengaruh yang positif antara Praktik Lapangan Kependidikan dengan Kesiapan Menjadi Guru Profesional yang berarti bahwa semakin lama Praktik Lapangan Kependidikan yang dilakukan mahasiswa maka akan semakin tinggi Kesiapan Menjadi Guru Profesional.
Gaya Belajar Mahasiswa D3 Teknik Otomotif Fakultas Teknik Universitas Negeri Padang Tahun Masuk 2016 dan 2017
Authors: Anreski Vanny , Purwanto Wawan , Dwiyani Nurindah
Published: August 2023

This study describes the Learning Style of D3 Automotive Engineering Students, Faculty of Engineering, Universitas Negeri Padang. The type of this research is correlational. The research subjects were Automotive Engineering Students, Faculty of Engineering, 2016 and 2017 Entry Years, with 56 students. Data collection techniques include filling out a questionnaire with a Likert scale. This study uses descriptive analysis techniques and confirmatory factors. Based on the confirmatory factor analysis of the results of this study, it can be concluded that the kinesthetic learning style is the most prominent in Automotive Engineering students, Faculty of Engineering, Universitas Negeri Padang, with an average TCR value of 71.76% for the Kinesthetic variable.

Penelitian ini bertujuan untuk mendsikripsikan gaya belajar mahasiswa D3 Teknik Otomotif Fakultas Teknik Universitas Negeri Padang. Jenis penelitian yang digunakan oleh peneliti adalah korelasional. Subjek penelitian Mahasiswa Teknik Otomotif Fakultas Teknik Tahun Masuk 2016 dan 2017 dengan jumlah sampel sebanyak 56 mahasiswa. Teknik pengumpulan data dengan mengisi angket dengan teknik pembuatan skala likert. Penelitian ini menggunakan teknik analisis deskriptif dan faktor konfirmatori. Berdasarkan analisis faktor konfirmatori hasil penelitian ini dapat disimpulkan bahwa gaya belajar kinestetik yang paling menonjol pada mahasiswa Teknik Otomotif Fakuktas Teknik Universitas Negeri Padang, dengan nilai TCR rata-rata pada variabel Kinestetik 71.76%.
Penggunaan Media Pembelajaran Berbasis Animasi untuk Meningkatkan Hasil Belajar Siswa dalam Pembacaan Alat Ukur Vernier Caliper dan Micrometer Mata Pelajaran PDTO pada Kelas X Otomotif di SMKN 1 Kota Jantho
Authors: Bakar Muhammad Jamil
Published: August 2023

This study aims to determine whether the use of animated learning media to improve student learning outcomes in reading the vernier caliper and micrometer measuring instruments for Basic Automotive (PDTO) subjects in class X Automotive at SMKN 1 Kota Jantho. The type of research used is the type of experiment. The research design used is One group Pretest-Posttest (Initial Test-Final Test in a single group), where the sample group is given treatment (independent variable) but the initial ability of the sample is known through the pretest. After the treatment was given, the results of the study were observed using a posttest. The results of this study conclude that the use of animation has a significant effect on student learning outcomes, where H0 is rejected and H1 is accepted based on the results of tcount of 4.092 which is greater than ttable of 2.228, or tcount > ttable = 4.092 > 2.228.

Penelitian ini memiliki tujuan untuk mengetahui peningkatan hasil belajar siswa dengan menggunakan media animasi pada pembacaan alat ukur vernier caliper dan micrometer mata pelajaran Pekerjaan Dasar Otomotif (PDTO) pada kelas X Otomotif di SMKN 1 Kota Jantho. Jenis penelitian yang dipakai yaitu jenis eksperimen. Desain penelitian yang dipakai ialah pre-test dan post-test untuk satu kelompok, dimana dilakukan pre-test setelah menggunakan metode konvensional dan melaksanakan post-test setelah menggunakan media animasi. Hasil penelitian ini menyimpulkan penggunaan animasi memiliki pengaruh yang signifikan terhadap hasil belajar siswa, dimana H0 ditolak dan H1 diterima berdasarkan hasil thitung sebesar 4,092 lebih besar dari ttabel sebesar 2,228, atau thitung > ttabel = 4,092 > 2,228.
Perencanaan Mesin Pengupas Kulit Kacang Tanah Kapasitas 800 kg/jam
Authors: Satrya Eka , Abu Risal , Mukhnizar Mukhnizar
Published: August 2023

This study aims to design a peanut peeling machine (pods) by utilizing an electric motor as a driving machine and a transmission system to continue rotation to a skin-peeling mechanism using a rotary type that drives a roller rotating shaft connected via a v-belt. The planning method in this research is the design of the peanut skin peeler machine, the method of planning elements and machine components, and making technical drawings. The results of this study are in the form of a Peanut Peeling Machine (pod) design, including the working principle of the Peanut Skin Peeler Machine, which is based on friction and surface pressure. Peanut Peeler Machine planning, and Peanut Peeling Machine technical drawings include: design/model, dimensions/size of machine components and elements, materials/materials, as well as instructions for the processing of each component/element of the machine.

Penelitian ini bertujuan untuk merencanakan suatu mesin pengupas kulit (polong) kacang tanah dengan memanfaatkan motor listrik sebagai mesin penggerak dan sistem transmisi untuk meneruskan putaran ke mekanisme pengupasan kulit menggunakan tipe rotary yang menggerakkan poros pemutar roller yang dihubungkan melalui v-belt. Metode perencanaan dalam penelitian ini yaitu desain mesin pengupas kulit kacang tanah, metode perencanaan elemen dan komponen mesin, dan pembuatan gambar teknik. Hasil dari penelitian ini berupa rancangan mesin pengupas kulit (polong) kacang tanah, diantaranya prinsip kerja Mesin pengupas kulit kacang tanah yaitu berdasarkan gesekan dan tekanan permukaan roller pengupas (dilapisi karet) yang berputar terhadap kulit (polong) kacang tanah dan kisi Stator, spesifikasi hasil perencanaan mesin pengupas kulit kacang tanah, dan gambar teknik mesin pengupas kulit (polong) kacang tanah meliputi: desain/model, dimensi/ukuran komponen dan elemen mesin, bahan/material, serta instruksi proses pengerjaan masing-masing komponen/elemen mesin.
Efektivitas Model Pembelajaran Problem Solving Dalam Meningkatkan Hasil Belajar Siswa SMK
Authors: Saputra Hendra Dani , Sugiarto Toto , Purwanto Wawan , Afifi Fajar Hanifudin , Hidayat Fazrin , Alwi Erzeddin
Published: August 2023

Research-based on problems in applying the learning model at SMKN 3 Bungo. This study aims to see the effectiveness of using the Problem Solving learning model at SMKN 3 Bungo. The learning model used is centered on the teacher, so student activity is still low. This type of research is a pre-experimental study using a one-group pretest post-test design. The research subjects were 24 students of class XI TKR 2 SMKN 3 Bungo. The research instrument is in the form of test questions in the form of objective questions. the data is analyzed through analysis of student learning completeness, effect size, and N-Gain. The results of this study indicate that the Problem Solving learning model effectively improves student learning outcomes in class XI TKR 2 at SMKN 3 Bungo, where 91.67% of students are declared to have completed it based on the KKM.

Penelitian ini bertujuan untuk melihat keefektifan pengunaan model pembelajaran Problem Solving di SMKN 3 Bungo. Penelitian berdasarkan permasalahan  dalam penerapan model pembelajaran yang diterapkan di SMKN 3 Bungo. Model pembelajaran yang digunakan terpusat pada guru, sehingga keaktifan siswa masih rendah. Jenis penelitian merupakan penelitian pre experimental menggunakan desain one group pretest posttest. Subjek penelitian  merupakan siswa kelas XI TKR 2 SMKN 3 Bungo yan berjumlah 24 orang. Instrumen penelitian dalam bentuk  soal tes dalam bentuk soal objektif. Data yang terkumpul,  dianalisis melalui analisis ketuntasan belajar siswa, effect size dan N-Gain. Hasil penelitian ini menunjukkan bahwa model pembelajaran Problem Solving efektif meningkatkan hasil belajar siswa kelas XI TKR 2 di SMKN 3 Bungo dimana sebesar 91,67 % siswa dinyatakan telah tuntas berdasarkan KKM.
Pengaruh Angle Attack Terhadap Luaran Generator Turbin Tipe Darrieus
Authors: Nugroho Arif Setyo , Kristiawan Y. Yulianto , Rahayu Aris Teguh
Published: August 2023

The angle and number of wind turbine blades. The turbine used for testing is a vertical Darrieus-H type turbine with variations in the number of blades 2, 3, and 4. Blades with NACA 4415 specifications, wind speeds with variations of 4 m/s, 5 m/s, 6 m/s, 7 m/s s, and 8 m/s. The source of the wind using a fan. Variations in the angle of attack are 0o, 10o, 20o, and 30o. The blade is made of sea sengon wood. At the position of the angle of attack, 10o rotates faster due to the influence of the lifting force of the blades. The position of the blade angle of attack 0o is difficult to rotate because the blade position is straight with the wind direction. The position of the angle of attack 20o and 30o blades is difficult to rotate because the lifting force of the blades is too heavy compared to the position of the angle of attack 10o. The highest electric power is obtained from the number of blades with 2 angles of attack 10o with a power of 10.5 watts.

Penelitian ini bertujuan untuk mengetahui daya yang dihasilkan akibat pengaruh sudut dan jumlah blade turbin angin. Turbin yang digunakan pengujian adalah turbin vertikal tipe Darrieus -H dengan variasi jumlah sudu 2, 3, dan 4. Blade dengan spesifikasi NACA 4415, kecepatan angin dengan variasi 4 m/s, 5 m/s, 6 m/s , 7 m/s, dan 8 m/s. Sumber angin menggunakan kipas angin. Variasi sudut serang adalah 0o, 10o, 20o, dan 30o. Blade terbuat dari bahan kayu sengon laut. Pada posisi sudut serang 10o berputar lebih cepat karena pengaruh gaya angkat sudu. Posisi sudu sudut serang 0o sulit untuk diputar karena posisi sudu lurus dengan arah angin. Posisi sudut serang 20o dan 30o sudu sulit untuk diputar karena gaya angkat sudu terlalu berat dibandingkan dengan posisi sudut serang 10o. Daya listrik tertinggi diperoleh dari jumlah sudu dengan 2 sudut serang 10o dengan daya 10,5 watt.
Pengembangan Multimedia Interaktif Pada Pembelajaran Tematik Terpadu Kelas IV Sekolah Dasar
Authors: Khairul Nisa Nadiva , Syafril Syafril
Published: August 2023

Penelitian ini dilatar belakangi oleh kurangnya penggunaan multimedia interaktif pada proses belajar mengajar dikarenakan tidak adanya pembaharuan terhadap media bahkan untuk beberapa materi pembelajaran, media pembelajaran tidak tersedia. Penelitian bertujuan untuk mengembangkan multimedia interaktif pada Pembelajaran Tematik Terpadu yang valid dan praktis. Penelitian ini merupakan penelitian pengembangan (R&D) dengan model pengembangan ADDIE. Hasil penelitian pengembangan media pembelajaran oleh validator media 1 diperoleh  91% dengan kategori “Sangat Valid”. Sedangkan hasil penilaian validator media 2 diperoleh 99% dengan kategori “Sangat Valid”. Dan penilaian oleh validator materi pada aspek kelayakan isi, penyajian, dan evaluasi diperoleh 93% dengan kategori “Sangat Valid” . Hasil uji praktikalitas kepada peserta didik terhadap multimedia interaktif dari aspek kemudahan penggunaan, materi, dan manfaat dapat dijelaskan bahwa penilaian yang dilakukan oleh peserta didik diperoleh hasil 96% yang dikategorikan “Sangat Praktis”. Dapat disimpulkan bahwa produk multimedia interaktif berbasis canva pada pembelajaran tematik terpadu di kelas IV Sekolah Dasar layak digunakan dalam proses pembelajaran.
Validitas Isi Instrumen Pengukuran Literasi Sejarah
Authors: Valentina Sahra Feby , Aisiah Aisiah
Published: August 2023

Tujuan penelitian ini adalah untuk mengestimasi validitas isi instrumen pengukuran literasi sejarah. Komponen instrumen pengukuran literasi sejarah ada 2 yaitu: 1) pengetahuan sejarah, dan 2)  pemahaman konsep. Jenis penelitian ini menggunakan pendekatan kuantitatif.  Sumber data validitas isi instrumen berasal dari penilaian validaro yang berjumlah 5 ahli yaitu ahli materi, ahli metodologi evaluasi dan ahli Bahasa. Data validitas isi instrumen literasi sejarah dikumpulkan menggunakan lembar validasi dalam bentuk skala likert dengan empat kategori; sangat baik, baik, kurang baik dan jelek. Data skor penilaian oleh lima orang validator dianalisis dengan menggunakan formula Aiken’V. Hasil analisis validitas isi instrumen pengukuran literasi sejarah diperoleh indek sebesar 0,88 > 0,87 dengan kategori valid. Dengan demikia disimpulkan bahwa instrumen pengukuran literasi sejarah dari segi isi atau konten tergolong valid
Penerapan Strategi Pembelajaran Inkuiri dalam Mata Pelajaran IPA Kelas VII di MTsN 3 Kerinci
Authors: Anita Desvia , Bentri Alwen
Published: August 2023

This study aims to evaluate the application of inquiry learning strategies in class VII natural science subjects at MTsN 3 Kerinci. The research method used is classroom action research conducted in several cycles. Participants in this study were students of class VII at MTsN 3 Kerinci. In this study, the teacher implemented an inquiry learning strategy that involved students actively in exploring and discovering knowledge through asking questions, seeking information, and conducting experiments. During the study, data was collected through classroom observations, interviews with teachers, and written tests to measure students' understanding of science concepts. The results showed that the application of inquiry learning strategies in class VII science subjects at MTsN 3 Kerinci had a positive impact on the learning process and students' understanding. Students are actively engaged in exploration and discussion, enhancing their critical thinking skills and scientific skills. In addition, the test results showed a significant increase in students' understanding of science concepts after implementing the inquiry strategy. This research concludes that the application of inquiry learning strategies can be an effective approach in enhancing science learning at the MTs level. It is suggested that teachers should more actively adopt this strategy and provide the necessary support to facilitate student inquiry in their learning
Hubungan Kesadaran Siswa Dalam Mematuhi Aturan Dan Perilaku Menjaga Alat Pratikum Terhadap Pemahaman Kesehatan Keselamatan Kerja/K3 di SMK N 2 Painan
Authors: Resiva Aditya , Chandra R , Alwi Erzeddin , Dani Saputra Hendra
Published: August 2023

Penelitian ini dilakukan karena kurangnya pemahaman siswa tentang Kesehatan Dan Keselamatan Kerja (K3) diworkshop SMK N 2 Painan. Tujuan penelitian ini adalah untuk mencari nilai hubungan variabel Kesadaran Siswa Dalam Mematuhi Aturan dan Perilaku Menjaga Alat Pratikum terhadap Pemahaman Kesehatan Keselamatan Kerja/K3 diSMK N2 Painan. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Dari hasil survei disimpulkan bahwa Kesadaran Siswa Dalam Mematuhi Aturan (X1) terhadap Pemahaman Kesehatan Keselamatan Kerja/K3 (Y) memiliki nilai korelasi sebesar 0,487. Nilai hubungan Perilaku Menjaga Alat Pratikum praktikum (X2) terhadap Pemahaman Kesehatan Keselamatan Kerja/K3 (Y) sebesar 0,595. Pengaruh variable (X) terhadap variabel (Y) secara serentak/bersama adalah sebesar 0,394, menunjukkan korelasi yang baik.
This research was conducted due to students' lack of understanding of Occupational Health and Safety (K3) at the SMK N 2 Painan workshop. The purpose of this study was to find the value of the relationship between the variable Student Awareness in Complying with Rules and the Behavior of Maintaining Practicum Tools on the Understanding of Occupational Health Safety/K3 at SMK N2 Painan. The method used in this research is descriptive quantitative. From the survey results it was concluded that Student Awareness in Complying with Rules (X1) on Understanding Occupational Health Safety/K3 (Y) has a correlation value of 0.487. The value of the relationship between the Behavior of Maintaining Practicum Practicum Tools (X2) to the Understanding of Occupational Health Safety/K3 (Y) is 0.595. The effect of variable (X) on variable (Y) simultaneously/together is 0.394, indicating a good correlation.
Optimasi Sistem Pengapian Terhadap Emisi Gas Buang Sepeda Motor 4 Langkah Dengan Metode Taguchi
Authors: Chaniago Ilham Putra , Purwanto Wawan , Rifdarmon  , Arif Ahmad
Published: August 2023

Pengguanaan bahan bakar minyak yang tinggi dari tahun ke tahun dapat menyebabkan krisis bahan bakar minyak dikemudian hari. Sehingga banyak orang mencoba untuk membuat bahan bakar alternatif agar dapat mengurangi penggunaan bensin sebagai bahan bakan utama. Biogasoline merupakan salah satu solusi untuk mengatasi krisis bahan bakar minyak di kemudian hari. Penelitian ini bertujuan mencari hasil optimal dari sistem pengapian (jenis busi, jenis koil, waktu pengapian) dan campuran bensin dan ethanol (biogasoline) terhadap emisi gas buang sepeda motor 4 langkah dengan menggunakan metode taguchi. Berdasarkan hasil penelitian yang telah dilakukan, hidrokarbon (HC) mendapat respon rata-rata optimal yaitu faktor A2 (317,78), B2 (325,89), C1 (299,22) dan D2 (316,33). Sedangkan untuk respon rata-rata optimal karbon monoksida (CO) yaitu faktor A3 (1,28), B1 (1,26), C3 (1,19) dan D2 (1,26).
The use of high fuel oil from year to year can cause a fuel oil crisis in the future. So many people try to make alternative fuels in order to reduce the use of gasoline as the main fuel. Biogasoline is one of the solutions to overcome the fuel oil crisis in the future. This study aims to find the optimal results of the ignition system (type of spark plug, type of coil, ignition timing) and a mixture of gasoline and ethanol (biogasoline) on exhaust emissions of 4 stroke motorcycles using the taguchi method. Based on the results of research that has been done, hydrocarbons (HC) get an optimal average response, namely factors A2 (317.78), B2 (325.89), C1 (299.22) and D2 (316.33). As for the optimal average response to carbon monoxide (CO), namely factors A3 (1.28), B1 (1.26), C3 (1.19) and D2 (1.26).
Pengembangan Media Pembelajaran Berbasis Aplikasi Android Mata Pelajaran Pekerjaan Dasar Teknik Otomotif
Authors: Hadi Nasrul , Hendra Dani Saputra  , Hasan Maksum  , Irma Yulia Basri  , Ramdani Sulaeman Deni
Published: August 2023

Pelaksanaan pembelajaran secara daring mengalami kendala keterbatasan jaringan selain itu juga belum adanya media pembelajaran yang dapat diakses secara luring dan daring. Tujuan penelitian ini adalah untuk menghasilkan media pembelajaran berbasis aplikasi android mata pelajaran pekerjaan dasar teknik otomotif yang valid dan pratis. Pada proses penelitian menggunakan metode research & development dengan model pengembangan ADDIE. Hasil penelitian diperoleh dari uji validitas oleh ahli dan uji praktikalitas oleh responden. Hasil dari validitas oleh ahli media diperoleh tingkat pencapaian 92% dengan kategori “sangat valid” dan ahli materi 94% “sangat valid”. Hasil praktikalitas oleh guru diperoleh 94% “sangat praktis” dan oleh peserta didik 89% ”praktis”. Berdasarkan hasil penelitian, bisa disimpulkan bahwa media pembelajaran berbasis aplikasi android yang telah  dihasilkan pada penelitian ini sudah sangat valid dan praktis.
The implementation of online learning experiences problems with network limitations besides that there is also no learning media that can be accessed offline and online. The purpose of this study was to produce learning media based on android applications for valid and practical automotive engineering basic work subjects. In the research process using the research & development method with the ADDIE development model. The research results were obtained from validity tests by experts and practicality tests by respondents. The results of the validity by media experts obtained an achievement level of 92% with the category "very valid" and material experts 94% "very valid". The results of practicality by the teacher obtained 94% "very practical" and by students 89% "practical". Based on the results of the research, it can be interpreted that the android application-based learning media that has been produced in this study is very valid and practical.
Analisis Penggunaan Electric Turbocharger Terhadap Konsumsi Bahan Bakar dan Emisi Gas Buang Pada Sepeda Motor Modifikasi Injeksi
Authors: Prima Jodhi Ananda , Purwanto Wawan , S Wakhinuddin , Arif Ahmad , Nasrullah Hamid
Published: August 2023

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan electric turbocharcger terhadap emisi gas buang dan konsumsi bahan bakar sepeda motor. Penelitian ini menggunakan metode eksperimen dengan objek penelitian sepeda motor yang dimodifikasi injeksi. Teknik pengumpulan data dilakukan dengan cara mengumpulkan data secara langsung dari sepeda motor dengan teknik analisis deskriptif persentase untuk mengukur konsumsi bahan bakar, karbon monoksida (CO), Karbon dioksida (CO2), dan Hidrokarbon (HC), baik dengan electric turbocharger maupun tanpa electric turbocharger. Berdasarkan data hasil penelitian dapat disimpulkan bahwa penggunaan electric turbocharger pada sepeda motor dapat menghemat konsumsi bahan bakar sebesar 16,04% pada kecepatan 40 Km/J dan mengurangi emisi gas buang seperti karbon monoksida menurunkan emisi gas buang sebesar 94% pada putaran idle dan hidrokarbon menurunkan kadar emisi gas buang sebesar 49% pada putaran idle namun meningkatkan emisi gas karbon dioksida sebesar 10% pada putaran idle.
This study aims to determine the effect of using an electric turbocharger on exhaust emissions and fuel consumption produced by motorcycles modified with injection systems. This study used an experimental method with the research object being injection-modified motorbikes. The data collection technique in this study was carried out by collecting data directly from injection-modified motorcycles with a percentage descriptive analysis technique to measure fuel consumption, carbon monoxide (CO), carbon dioxide (CO2), and hydrocarbons (HC), both with and without an electric turbocharger. Based on the results of the research data, it can be concluded that the use of an electric turbocharger on an injection modified motorcycle can save fuel consumption by 16.04% at a speed of 40 Km/J and reduce exhaust emissions such as carbon monoxide reducing exhaust emissions by 94% at idle speed and hydrocarbons reducing exhaust emission levels by 49% at idle speed but increasing carbon dioxide gas emissions by 10% at idle speed.
Tinjauan Sistem Manajemen Keselamatan Dan Kesehatan Kerja Di Departemen Teknik Kendaraan Ringan Otomotif
Authors: Alfarizi Rizki , Martias  , Fernandez Donny , Arif Ahmad
Published: August 2023

Sistem manajemen keselamatan dan kesehatan Kerja di Departemen Teknik Kendaraan Ringan Otomotif SMK Negeri 1 Lembah Melintang belum efektif, terlihat masih banyak siswa yang mengabaikan keselamatan dan kesehatan kerja pada saat melaksanakan praktikum. Penelitian ini memiliki tujuan untuk melihat seberapa besar pelaksanaan sistem manajemen keselamatan dan kesehatan kerja di Departemen Teknik Kendaraan Ringan Otomotif dengan 3 indikator yaitu perencanaan, penerapan dan evaluasi. Penelitian ini menggunakan jenis penelitian deskriptif dengan metode penyebaran angket dan dokumentasi penelitian. Populasi dalam penelitian adalah siswa kelas XI dan XII TKRO dengan sampel penelitian nya menggunakan stratified random sampling. Teknik analisis data dalam penelitian ini menggunakan perhitungan gejala pusat (central tendency) dan variabel. Berdasarkan hasil penelitian dan pembahasan, didapatkan bahwa pada indikator perencanaan berjalan dengan baik, indikator penerapan kurang berjalan dengan baik dan indikator evaluasi kurang berjalan dengan baik.
The Occupational safety and health management system in the Department of Automotive Light Vehicle Engineering SMK Negeri 1 Lembah Melintang has not been effective, it can be seen that there are still many students who ignore occupational safety and health when carrying out practicums. This study aims to see how big the implementation of the occupational safety and health management system in the Department of Automotive Light Vehicle Engineering is with 3 indicators namely planning, implementation and evaluation. This research uses a descriptive research type with the method of distributing questionnaires and research documentation. The population in the study were students of class XI and XII TKRO with the research sample using stratified random sampling. The data analysis technique in this study uses the calculation of the central tendency and variables. Based on the results of the research and discussion, it was found that the planning indicators were going well, the implementation indicators were not going well and the evaluation indicators were not going well.
Analisis Pengaruh Oil Mixtures Bahan Bakar Minyak Terhadap Torsi Tenaga dan Emisi Gas Buang Pada Sepeda Motor 150cc Dua Langkah
Authors: Kurniawan Rino , Simatupang Wakhinuddin , Rifdarmon Rifdarmon , Arif Ahmad
Published: August 2023

Torsi, daya dan emisi gas buang yang dihasilkan oleh sepeda motor 2 langkah merupakan permasalahan mendasar yang ditemui yang berhubungan dengan oil mixture yang digunakan. Tujuan dari penelitian ini adalah untuk mengkaji torsi, tenaga, dan emisi sepeda motor Ninja 150R. Penelitian ini bersifat eksperimental. Hasil penelitian menunjukkan perubahan yang substansial dari setiap variabel. Torsi dan daya motor Ninja 150R dapat ditingkatkan secara signifikan menggunakan oli Ipone R2000rs dan Castrol A747 dengan hasil thitung 4,064 dan 7,973 untuk torsi, serta 4,086 dan 7,825 untuk daya. Hasil penelitian menunjukkan bahwa dibandingkan dengan Oli Motul 510 2t dan Oli Standar, Oli Castrol A747 dan Oli Ipone R2000rs memiliki tingkat emisi yang lebih rendah dengan thitung 20,438 dan 26,614 yang lebih besar dari nilai ttabel yaitu 2,776. Dapat disimpulkan hasil ini memberi pengetahuan yang lebih baik tentang karakteristik torsi, daya, dan emisi pada sepeda motor 2 langkah berdasarkan varian oil mixture.
The torque, power, and exhaust pollutants generated by the oil mixture used in 2-stroke motorcycles are the primary issues. The purpose of this study is to assess the Ninja 150R's torque, horsepower, and emissions. This is experimental research and the study's results indicate a significant shift in each metric. Ipone R2000RS and Castrol A747 oil, with torque and power tcounts of 4.064 and 7.973 and 4.086 and 7.825, may significantly increase the torque and power of the Ninja 150R engine. Results indicated that Castrol A747 Oil and Ipone R2000rs Oil had lower emission levels than Motul 510 2t Oil and Standard Oil, with tcounts of 20.438 and 26.614, respectively, which were greater than the ttable values of 2.776. These findings, based on the variety of oil mixtures, can be extrapolated to provide a deeper comprehension of the torque, power, and emissions characteristics of a 2-stroke motorcycle.
“I’m Sorry, but That’s Bribery”: A Decolonial Perspective From Which to Study Moral Economies in the ‘Chinese Pacific’
Authors: Maggio Rodolfo
Published: August 2023

“I’m sorry, but that’s bribery,” said reporter Tom Steinfort to Vanuatu Minister of Foreign Affairs Ralph John Regenvanu regarding the supposed support of the island state to China in United Nations resolutions, hypothetically framed as reciprocation for an unprecedented influx of foreign capital. This conceptualization of bribery rests upon recent value negotiations concerning the moral economy of corruption within the context of the ‘China threat’ debate in Oceania. A decolonial methodology is necessary to prevent this superimposition of colonial interests upon indigenous views in journalistic reports, social media outlets, and academic publications. It is, therefore, necessary to interrogate the position from which reporters, journalists, and scholars speak or write about corruption in diplomatic relations in an increasingly Sinicized Pacific. This approach appreciates localized forms of theorizing indigenous ideas about appropriate economic behaviors in the context of new geopolitical relations. In the absence of a decolonial methodology, such ideas might become invisible, along with the intrinsic features of new Sino-Pacific relations.