bluuebunny/crossref_metadata_2025 huggingface dataset:
PEMBERDAYAAN KADER POSYANDU DALAM PELAKSANAAN PROGRAM PERENCANAAN PERSALINAN DAN PENCEGAHAN KOMPLIKASI
Authors: Huru Matje Meriaty , Boimau Serlyansie , Yulianti Hasri , Boimau Adriana
Published: June 2023

Abstrak: Program Perencanaan Persalinan dan Pencegahan Komplikasi (P4K) ditunjukkan dengan program penempelan stiker P4K di setiap rumah ibu hamil, dengan tujuan untuk meningkatkan peran kader posyandu dalam program perencanaan proses persalinan dan pencegahan komplikasi. Kurangnya pemahaman kader posyandu tentang P4K dan belum adanya penempelen stiker P4K dirumah ibu hamil. Tujuan pengabdian untuk meningkatkan pengetahuan kader posyandu tentang P4K dan memotivasi kader posyandu untuk menempel stiker P4K dirumah ibu hamil. Metode yang digunakan untuk mengukur tingkat pengetahuan dan ketrampilan kader posyandu melalui penyuluhan dan praktikum cara pengisian stiker P4K. Mitra dalam kegiatan ini adalah Kader Posyandu sebanyak 20 orang dari 4 posyandu yang berada di Desa Penfui Timur. Evaluasi pengetahuan dengan post-test sedangkan untuk ketrampilan melalui observasi dengan lembar observasi. Hasil kegiatan menunjukkan bahwa terjadi peningkatan pengetahuan kader posyandu tentang P4K dari 35% menjadi 100% dan ketrampilan memberikan penyuluhan dan pengisian stiker P4K dari 30% menjadi 95% serta telah dilakukan penempelan stiker P4K di setiap rumah ibu hamil.Abstract: The Childbirth Planning and Complication Prevention (P4K) Program is shown by a P4K sticker pasting program in each pregnant woman's home, with the aim of posyandu cadres in labor planing programs and complications. The lack of understanding of posyandu cadres about P4K and the absence of P4K stickers in pregnant women's homes. The purpose of the service is to increase the knowledge of posyandu cadres about P4K and motivate posyandu cadres to stick P4K stickers in the homes of pregnant women. The method used to measure the level of knowledge and skills of posyandu cadres through counseling and practicum on how to fill P4K stickers. Partners in this activity are Kader Posyandu as many as 20 people from 4 posyandu located in East Penfui Village. Evaluation of knowledge with post-test while for skills through observation with observation sheets. The results of the activity showed that there was an increase in the knowledge of posyandu cadres about P4K from 35% to 100% and the skills of providing counseling and filling P4K stickers from 30% to 95% and had P4K stickers are pasted in every pregnant woman's house.
EDUKASI BUDIDAYA IKAN NILA HEMAT LISTRIK DAN RAMAH LINGKUNGAN DENGAN TEKNOLOGI JET AERASI
Authors: Marisda Dewi Hikmah , Wahyu Farhanah , Karamma Ilham Hadianto , Wahyudi Ihzan
Published: June 2023

Abstrak: Permasalahan mitra adalah borosnya pemakaian listrik, mitra belum memperhatikan kandungan oksigen dalam budidaya, dan belum konsisten menggunakan pakan. Tujuan kegiatan yaitu meningkatkan pengetahuan dan keterampilan mitra dengan cara mengedukasi mitra tentang budidaya ikan. Selain itu, mengikutsertakan mahasiswa dengan mengenalkan mahasiswa pada kegiatan di luar kampus. Metode yang digunakan adalah sosialisasi pemberian edukasi kepada mitra tentang teknologi jet aerasi, teknis pelaksanaan budidaya dan penyakit ikan yang bisa saja muncul pada saat budidaya. Mitra kegiatan ini adalah KUB Chanos Jaya yang berjumlah 10 orang. Namun, peserta yang hadir dalam kegiatan sosialisasi berjumlah 21 orang yang terdiri dari anggota KUB Chanos Jaya, tokoh masyarakat, dan masyarakat sekitar. Sebelum memberikan materi, tim dosen mengevaluasi pemahaman awal peserta dengan pertanyaan seputar budidaya. Di akhir kegiatan sosialisasi, tim PkM mengevaluasi peningkatan pemahaman peserta. Berdasarkan jawaban peserta, hasil pre-test ada 45% peserta yang mengetahui budidaya, dan hasil post-test ada sekitar 80% peserta memahami proses budidaya setelah pemberian edukasi.Abstract: Partner problems are wasteful use of electricity, partners have not paid attention to the oxygen content in cultivation, and have not consistently used feed. The purpose of the activity is to educate partners about tilapia cultivation that is environmentally friendly and saves electricity by using jet aeration technology in tilapia cultivation. In addition, involving students by introducing students to off-campus activities. The method used is the dissemination of education to partners about jet aeration technology, technical implementation of aquaculture and fish diseases that may arise during cultivation. The partners of this activity are KUB Chanos Jaya, which consists of ten people. However, the participants who attended the socialization activity were 21 people consisting of members of KUB Chanos Jaya, community leaders, and the surrounding community. Before giving the material, the lecturer team evaluated the participants' initial understanding with questions about cultivation. At the end of the socialization activity, the PkM team evaluated the increase in participants' understanding. Based on the participants' answers, the pretest results showed that 45% of the participants knew about cultivation, and the post-test results showed that 80% of the participants understood the cultivation process after providing education.
PENDAMPINGAN GURU MATEMATIKA PADA KELOMPOK SINAR HARAPAN DALAM MENGGUNAKAN GEOGEBRA TERINTEGRASI KEARIFAN LOKAL
Authors: Tamur Maximus , Pantaleon Kristianus Viktor , Apriani Maria Suci , Jehadus Emilianus , Lakapu Meryani , Gahung Antonius , Prasetyo Dominikus Arif Budi
Published: June 2023

Abstrak: Perhatian untuk mengintegrasikan etnomatematika dan teknologi software matematika dalam pembelajaran telah memberikan transformasi besar dalam lanskap pendidikan matematika. Integrasi tersebut terbukti memberikan dampak yang besar terhadap kemampuan matematis siswa. Namun kenyataannya para guru matematika di Kecamatan Langke Rembong Manggarai NTT Indonesia belum memiliki ketrampilan yang memadai dalam mengitegrasikan etnomatematika dan teknologi software matematika seperti geogebra dalam pembelajaran. Oleh karena itu, tujuan dilaksanakannya kegiatan pengabdian ini adalah untuk meningkatkan softskill dan hardskill para guru matematika terkait pengembangan bahan ajar terintegrasi etnomatematika berbantu geogebra, serta memberikan pelatihan dalam mengembangkan lembar kerja siswa berbasis geobera. Metode pelaksanaan kegiatan adalah dalam bentuk workshop dengan mengunakan pendekatan synchronous dan asynchronous. Evaluasi dan monitoring melalui Learning Management System (LMS) selama enam pertemuan. Hasil kegiatan ini memberikan peluang kepada para guru untuk mengintegrasikan etnomatematika dan teknologi ke dalam kelas sehingga berkontribusi pada peningkatan kemampuan matematis siswa.Abstract: The attention to integrating ethnomathematics and mathematics software technology in learning has provided a major transformation in the landscape of mathematics education. This integration is proven to have a big impact on students' mathematical abilities. However, the reality is that mathematics teachers in Langke Rembong Manggarai District, NTT Indonesia, do not yet have adequate skills in integrating ethnomathematics and mathematics software technology such as GeoGebra in learning. Therefore, the purpose of this service activity is to improve the soft skills and hard skills of mathematics teachers related to the development of GeoGebra-assisted integrated teaching materials, as well as to provide training in developing GeoGebra-based student worksheets. The method of implementing the activities is a workshop using a synchronous and asynchronous approach. Evaluation and monitoring through the Learning Management System (LMS) for six meetings. The results of this activity provide opportunities for teachers to integrate ethnomathematics and technology into the classroom so as to contribute to improving students' mathematical abilities.
PENDAMPINGAN PEMANTAUAN DAN PEMETAAN STATUS GIZI BALITA DI KABUPATEN JENEPONTO
Authors: Jusriani Rini , Alam Syamsul
Published: June 2023

Abstrak: Keterlibatan masyarakat dalam menentukan status gizi balita melalui kader posyandu masih terbatas pada penimbangan berat badan dan pencatatan dalam Kartu Menuju Sehat (KMS). Hasil penimbangan dianalisis oleh petugas gizi dari puskesmas sehingga kader belum secara mandiri menilai status gizi balita di posyandu. Tujuan pendampingan adalah memberikan pelatihan dan pendampingan kepada kelompok desa sehat di Desa Ujung Bulu Kecamatan Rumbia Kabupaten Jeneponto sebanyak 10 orang. Metode yang digunakan yaitu sosialisasi pendampingan, pelatihan peningkatan kapasitas, pendampingan, pemantauan, dan pemetaan status gizi balita. Hasil menunjukkan bahwa kelompok desa sehat telah mampu mengumpulkan data antropometri anak balita (100%) dengan adanya peningkatan kemampuan dan keterampilan dalam pemantauan dan pemetaan status gizi (85%) oleh kelompok desa sehat melalui pelatihan dan pendampingan. Dari Kegiatan pendampingan, diperoleh gambaran hasil penilaian dan pemetaan status gizi anak balita di desa yang dapat digunakan sebagai acuan pemerintah setempat untuk melakukan intervensi baik upaya pencegahan maupun penanganan terhadap permasalah gizi balita. Kegiatan dari pelatihan dan pendampingan diharapkan dapat diaplikasikan pada kegiatan rutin penimbangan balita di posyandu.Abstract: Community involvement in determining the nutritional status of children under five through posyandu cadres is still limited to weighing and recording in the Card of Towards Health (KMS). The results of the weighing were analyzed by nutrition officers from the puskesmas so that the cadres were not yet independent in assessing the nutritional status of children under five at the posyandu. The purpose of the mentoring is to provide training and assistance to healthy village groups in Ujung Bulu Village, Rumbia District, Jeneponto Regency that are 10 peoples. The methods used are mentoring socialization, capacity building training, mentoring, monitoring, and mapping the nutritional status of children under five. The results show that the healthy village group has been able to collect anthropometric data for children under five (100%) with an increase in the abilities and skills (85%) of the healthy village group through training and mentoring. From the mentoring activities, a description of the nutritional results and mapping of the nutritional status of children under five in the village was obtained which could be used as a reference for the local government to intervene in both prevention and treatment of under-five problems. The activities from the training and mentoring are expected to be applied to the routine weighing of toddlers at the posyandu.
PENERAPAN MODEL DIGITAL MICROVOLUNTEER BAGI PENYANDANG TUNANETRA DI KOTA MEDAN
Authors: Rioaldo Muhammad , Ramadhanti Zayyan , Nadria Aini Tasya , Adelia Indah , Saputra Sahran
Published: June 2023

Abstrak: Dalam melakukan aktivitas sehari-hari, penyandang tunanetra biasanya didampingi oleh seseorang relawan yang membantu mereka untuk melakukan hal penting dalam hidupnya, seperti menemukan barang hilang atau terjatuh, menjelaskan gambaran, membaca label, hingga mengetahui tanggal kadaluarsa produk makanan, dan sebagainya. Sementara itu para pendamping mereka tidak selalu berada di samping mereka selama 24 jam karena memiliki kesibukan yang lain. Oleh karena itu penting untuk menerapkan model digital microvolunteer yang bertujuan untuk memediasi penyandang tunanetra dengan relawan untuk membantu aktifitas kesehariannya. Kegiatan ini dilaksanakan melalui metode partisipatif, pelatihan penggunaan aplikasi, dan praktik langsung, dengan melibatkan beberapa 12 orang mitra yang berasal dari pengurus organisasi mitra. Hal teknis yang dapat dipahami oleh mitra program antara lain; pemanfaatan aplikasi Mata Kita, dengan pemahaman sebesar 88% dibanding sebelum pelatihan Peserta pelatihan telah mengikuti rangkaian kegiatan sampai tahap praktik implementasi pembelajaran.Abstract: In carrying out their daily activities, blind people are usually accompanied by a volunteer who helps them to do important things in life, such as finding lost or dropped items, explaining descriptions, reading labels, finding out the expiration date of food products, and so on. Meanwhile, their chaperones are not always by their side 24 hours a day because they have other activities. Therefore it is important to implement a digital microvolunteer model which aims to mediate blind people with volunteers to help with their daily activities. This activity was carried out through participatory methods, application use training, and hands-on practice, involving some 12 partners from the management of partner organizations. Technical matters that can be understood by program partners include; utilization of the Mata Kita application, with an understanding of 88% compared to before the training. The training participants have participated in a series of activities up to the practical implementation stage of learning.
PEMANFAATAN TEPUNG MAGGOT SEBAGAI SUBTITUSI PAKAN KOMERSIL UNTUK IKAN BAUNG
Authors: Helmizuyani Helmizuyani , Muslimin Boby , Khotimah Khusnul , Puspitasari Meika , Mardiyan Mardiyan
Published: June 2023

Abstrak: Biaya produksi terbesar dalam kegiatan usaha budidaya ikan adalah pakan. Setiap tahun, pakan ikan mengalami kenaikan harga yang khususnya dirasakan oleh kelompok budidaya ikan baung. Pakan alternatif yang potensial yang dapat digunakan adalah maggot dan saat diberikan pada benih ikan baung dibutuhkan pengolahan menjadi tepung agar dapat terkonsumsi dengan baik sesuai ukuran mulut ikan. Oleh karena itu, Prodi Akuakultur Universitas Muhammadiyah Palembang melakukan kegiatan pelatihan pembuatan tepung maggot sebagai produk turunan maggot dengan nilai ekonomis yang potensial.yang melibatkan 7 orang peserta pelatihan. Program pengabdian masyarakat ini bertujuan untuk mengoptimalkan kegiatan budidaya ikan baung dengan ikan dengan memproduksi maggot tepung sebagai subtitusi pakan dan tingkat pemahaman mitra setelah pelatihan tercapai hingga 73%. Program kegiatan ini dibagi menjadi empat kegiatan, yaitu penggalian pengetahuan peserta tentang maggot dan tepung maggot, sosialisasi materi budidaya maggot dan teknis pembuatan tepung maggot, aplikasi maggot untuk budidaya ikan baung, dan evaluasi pelaksanaan kegiatan dengan penyebaran kuisinoner. Produk yang didapatkan dari kegiatan ini adalah tepung maggot yang menjadi pakan alternatif, sebagai produk turunan dengan nilai jual ekonomis potensial, dan dapat menekan biaya produksi budidaya ikan baung.Abstract: The most considerable production cost in fish farming activities is feed. Every year, fish feed prices increase, which is especially felt by the baung fish farming group, Village-owned enterprise (BumDes) Teratai Indah, Bangsal Village, Pampangan District, Ogan Komering Ilir Regency, South Sumatra Province. A potential alternative feed that could be used is a maggot, and when given to baung fish post-juvenile, it needs processing into flour to be adequately consumed according to the size of the fish's mouth. Therefore, the Aquaculture Study Program, Muhammadiyah University of Palembang, conducted training on the manufacture of maggot flour as a maggot derivative product with potential economic value. This community service program aims to optimize baung fish farming activities by producing alternative feed for baung post-juvenile and making variant products from maggot at BumDes Teratai Indah. This activity program is divided into four movements: exploring participants' knowledge about maggot and maggot flour, socialization of maggot cultivation materials and techniques for making maggot flour, and applying maggot for baung fish cultivation, and evaluation of the implementation of activities. The product obtained from this activity is maggot flour, an alternative feed, as a derivative product with a potential economic selling value and can reduce the production cost of baung fish farming in the Teratai Indah BumDes Ogan Komering Ilir Regency.
DEMO MP-ASI MODIFIKASI PANGAN LOKAL SEBAGAI MEDIA EDUKASI PADA KELUARGA BADUTA
Authors: Yudianti Yudianti , Hapzah Hapzah , Arief Erdiawati , Nurbaya Nurbaya
Published: June 2023

Abstrak: Wilayah Kecamatan Kalukku, Mamuju, Sulawesi Barat merupakan daerah yang memiliki beberapa titik lokus stunting artinya cukup banyak persentase kejadian stunting di wilayah tersebut di samping balita yang mengalami gizi kurang. Pola pemberian MP-ASI pada anak usia 6-23 bulan pada daerah tersebut masih rendah. Pola pemberian MP-ASI dari jenis, jumlah dan waktu pemberian MP-ASI masih kurang yaitu sebanyak 72,3%, 80% dan 45.8% secara berturut-turut dan ada hubungan antara jenis MP-ASI dengan stunting. Kegiatan ini bertujuan meningkatkan pengetahuan dan produktivitas keluarga baduta dalam menyiapkan MP-ASI lokal bagi baduta. Sasaran kegiatan ini yaitu ibu balita stunting sebanyak 30 peserta. Metode yang digunakan ada 2 yaitu penyuluhan dan demonstrasi MP-ASI. Kegiatan penyuluhan dan demo berjalan lancar dan terdapat peningkatan pengetahuan ibu pada saat pre-test dan post-test dari 50% menjadi 80 %. Kegiatan pengabdian masyarakat dalam bentuk penyuluhan dan demo MP-ASI menggunakan bahan pangan lokal dapat meningkatkan pengetahuan dan kemampuan ibu dalam membuat MP-ASI lokal.Abstract: The Kalukku subdistrict area, Mamuju, West Sulawesi, has several stunting locus points, meaning that there is quite a large percentage of stunting incidents in that area, in addition to under-fice children who experience malnutrition. The pattern of giving MP-ASI to children aged 6-23 months in this area still needs to be improved. The pattern of giving MP-ASI in terms of type, amount, and time of giving MP-ASI still needs to be improved, namely 72.3%, 80%, and 45.8%, respectively, and there is a relationship between the type of MP-ASI and stunting. This activity aims to increase the knowledge and productivity of the toddler's family in preparing local MP-ASI for toddlers. The target of this activity is stunting toddler mothers as many as 30 participants. There are 2 methods used, namely socialization and demonstration of MP-ASI. The socialization and demo activities ran smoothly, and mothers' knowledge increased from 50% to 80% during the pre-test and post-test. Community service activities in the form of outreach and MP-ASI demonstrations using local food ingredients can increase mothers' knowledge and ability to make local MP-ASI.
Prediction Active Case of Covid-19 with ERNN
Authors: Aprianti Winda , Permadi Jaka , Rhomadhona Herfia
Published: June 2023

SARS-CoV-2 is known as Covid-19 has been spread in all world since end of 2019. Indonesia, including South Kalimantan has detected first Covid-19 in March 2020. This pandemic has affected in all entirely live in Indonesia. This makes Covid-19 be the main focus of the government. The government has provided aid and imposed restrictions on activities. These policies require planning that can be a solution. Careful planning requires an overview of the data on active cases that are positive for Covid-19. This overview can be obtained through prediction. In this research, Elman Recurrent Neural Network (ERNN) was used to predict active cases of Covid-19. Architecture of ERNN was used ERNN with 3 input nodes, 2 hidden nodes, and 2 context nodes. The data used is 277 data, which is then divided into training data and testing data, respectively 90%-10%, 80%-20%, and 70%-30%. ERNN with a learning rate of 0.1 until 0.9 is applied to data on active cases of Covid-19, then Mean Absolute Percentage Error (MAPE) is calculated to find out performance of model generated by ERNN. The results showed that all of MAPE were below 10% with the smallest MAPE as 3.21% for scenario 90:10 and learning rate 0.6. MAPE value which is less than 10% indicates that ERNN has very good predictive ability.
Multivariate Control Chart based on Neutrosophic Hotelling T2 Statistics and Its Application
Authors: Wibawati Wibawati , Ahsan Muhammad , Khusna Hidayatul , Qori'atunnadyah Marita , Udiatami Wilda Melia
Published: June 2023

Under classical statistics Hotelling 〖 T〗^2 control chart is applied when the observations of quality characteristics are precise, exact, or crips data. However, in reality, under uncertain conditions, the observations are not necessarily precise, exact, or indeterminacy. As a consequence, the classical Hotelling〖 T〗^2control chart is not appropriate to monitor the process for this condition. To tackle this situation, we proposed new Hotelling 〖 T〗^2 monitoring scheme based on a fuzzy neutrosophic concept. Neutrosophic is the generalization of fuzzy. It is used to handle uncertainty using indeterminacy. The combination of statistics based on neutrosophic Hotelling 〖 T〗^2 and classical Hotelling 〖 T〗^2 control chart will be proposed to tackle indeterminacy observations. The proposed Hotelling 〖 T〗^2 statistics, its call neutrosophic Hotelling 〖 T〗^2 (T_N^2 ) control chart. This chart involves the indeterminacy of observations, its call neutrosophic data and will be expressed in the indeterminacy interval. T_N^2 control charts consist T_N^2 lower chart and T_N^2 upper chart. In this paper, the neutrosophic Hotelling T^2will be applied to individual observations of glass production and will be compared by using classical Hotelling T^2 control chart. Based on T_N^2 control charts of glass production, nine points fall outside of 〖UCL〗_N of lower control chart and 24 points outside from 〖UCL〗_N  of upper control chart. Whereas using classical Hotelling T^2 control chart, just one point outside frim UCL. From the comparison, it concluded that the neutrosophic Hotelling T^2 control chart is more suitable for the indeterminacy of observations.
Development of Student Worksheets Based Computational Thinking for Derivatives of Algebra Function
Authors: Kurniasi Eka Rachma , Vebrian Rajab , Arsisari Ayen
Published: June 2023

Computational Thinking (CT) is one of the important thinking skills in the 21st century. However, mathematics has not been widely developed in the classroom learning process. The results of the initial study show that there is no student worksheet based on compuational thinking for high school students. This study aims to develop a Student Worksheet (LKPD) based on Computational Thinking the derivatives of algebra function of for high school students. This type of research is development research with ADDIE model development research design. The steps are analysis, design, development, implementation, and evaluation. The research subjects were high school students of grade 11 who received material on the derivatives of algebraic functions. The research instruments were  student worksheet as a development product, expert validation questionnaires, teacher practicality questionnaires, and student response questionnaires. The product developed in this study is a CT-based math worksheet for the derivatives of algebraic functions for high school students. This product is validated by material experts and mathematics learning experts. Furthermore, the practitioner test by high school mathematics teachers and questionnaire responses by high school students, the number of students are 20 people. The results of this study are the Mathematics Student Worksheets based on Computational Thinking material for the derivatives of algebra fuction for high school students that are valid and practical. The resulting LKPD contains CT steps, namely abstraction, generalization, decomposition, algorithmic, debugging. This worksheet is one way to integrate computational thinking in mathematics learning.
Brown-McCoy Radical in Restricted Graded Version
Authors: Prasetyo Puguh Wahyu
Published: June 2023

Some conjectures related to the radical theory of rings are still open. Hence, the research on the radical theory of rings is still being investigated by some prominent authors. On the other hand, some results on the radical theory of rings can be implemented in another branch or structure. In radical theory, it is interesting to bring some radical classes into graded versions. In this chance, we implement a qualitative method to conduct the research to bring the Brown-McCoy radical class to the restricted graded Brown-McCoy radical class as research objective. We start from some known facts on the Brown-McCoy radical class and furthermore, let G be a group, we explain the Brown-McCoy radical restricted with respect to the group G. The result of this paper, we describe the Brown-McCoy radical in restricted graded version and it is denoted by G^G. Furthermore, we also give the fact by explaining G^G (A)=(〖G(A))〗_G, for any ring A, as the final outcome of this paper.
A framework for Assessing Translation among Multiple Representations
Authors: Andriani Parhaini , Kurniawati Kiki Riska Ayu , Afriyani Dona
Published: June 2023

Translation among multiple representations is one of the important abilities to be possessed by prospective mathematics teachers. The mathematics learning curriculum ranging from elementary to college level needs to emphasize the ability to translate mathematical ideas in a form of representation to different mathematical representation structures. Assessing of this ability is important because it can be used as a basis for developing other mathematical literacy skills. The purpose of this study is to describe the level of translation between mathematical representations of prospective mathematics teachers. A descriptive qualitative study was conducted to fourty prospective mathematics teachers in State Islamic University of Mataram. The selection of research subjects was carried out in a purposive sampling. Data were obtained from mathematical translational thinking task in the form of an assignment sheet consisting of 2 questions related to quadratic equations and task-based interviews. Data were analyzed using fixed comparison analysis, which is comparing incidents (phenomena) with the aim of classifying data. The study found five levels of translational ability between mathematical representations, which were named: level 0, level 1, level 2, level 3 and level 4. The characteristics of each level are built based on four mathematical translational thinking processes: unpacking the source of representations, coordinating initial stage, design the target representation and determine the equivalence between the source and target representations. The findings in this study could be used as a guide to develop an instrument to assess mathematical translation ability.
GRG Non-Linear and ARWM Methods for Estimating the GARCH-M, GJR, and log-GARCH Models
Authors: Nugroho Didit Budi , Panjaitan Lam Peter , Kurniawati Dini , Kholil Zaini , Susanto Bambang , Sasongko Leopoldus Ricky
Published: June 2023

Numerous variants of the basic Generalized Autoregressive Conditional Heteroscedasticity (GARCH) models have been proposed to provide good volatility estimating and forecasting. Most of the study does not work Excel’s Solver to estimate GARCH-type models. The first purpose of this study is to provide the capability analyze of the GRG non-linear method built in Excel’s Solver to estimate the GARCH models in comparison to the adaptive random walk Metropolis method in Matlab by own codes. The second contribution of this study is to evaluate some characteristics and performance of the GARCH-M(1,1), GJR(1,1), and log-GARCH(1,1) models with Normal and Student-t error distributions that fitted to financial data. Empirical analyze is based on the application of models and methods to the DJIA, S&P500, and S&P CNX Nifty stock indices. The first empirical result showed that Excel’s Solver’s Generalized Reduced Gradient (GRG) non-linear method has capability to estimate the econometric models. Second, the GJR(1,1) models provide the best fitting, followed by the GARCH-M(1,1), GARCH(1,1), and log-GARCH(1,1) models. This study concludes that Excel’s Solver’s GRG non-linear can be recommended to the practitioners that do not have enough knowledge in the programming language in order to estimate the econometrics models. It also suggests to incorporate a risk premium in the return equation and an asymmetric effect in the variance equation.
Clustering the Distribution of COVID-19 in Aceh Province Using the Fuzzy C-Means Algorithm
Authors: Nurdin Nurdin , Fitriani Suci , Yunizar Zara , Bustami Bustami
Published: June 2023

COVID-19 is a virus that attacks the respiratory system in humans and spreads rapidly. The government has taken various ways to reduce the rate of transmission of COVID-19, including by providing a COVID-19 information center that can be accessed by anyone, but there is no grouping of regional zones with high to low COVID-19 cases. Therefore, a clustering process system for the spread of COVID-19 is needed so that it is able to provide information on clusters of COVID-19 distribution areas in Aceh with the highest case zone (red zone), medium case zone (yellow zone), and low case zone (green zone). The steps carried out in this study using the Fuzzy C-Means Algorithm are collecting data (input data), conducting the clustering process (determining the number of clusters, weighting rank, maximum iteration and epsilon), displaying clustering results. In this study, the authors collected COVID-19 data from 23 districts/cities in Aceh using 6 variables consisting of confirmed, in care, healed, died, suspected, and probable. The results of the clustering study on the spread of COVID-19 are as follows: One district/city in cluster 1 (red zone), the four districts/cities in cluster 2 (yellow zone), eighteen districts/cities in cluster 3 (green zone). Based on the results of this study, the Fuzzy C-Means Algorithm can be used and applied properly in clustering the spread of COVID-19 in the Province of Aceh.
Simulations and Solutions of Calculus Problem: An Effort to Improve Students' Innovative and Quality Computing Skills
Authors: Sucipto Lalu , Irpan Samsul
Published: June 2023

One of the impacts of online learning that is not optimal is learning loss. Therefore, the aims of this study, we conduct computing practicum with Maple and Matlab to improve students' ability to develop learning media based on Network Virtual Laboratory (NVL). The implications of this practicum can improve students' innovative attitudes in developing various learning media NVL-based, with still through the validation process and field tests so that quality learning media is produced  . The subject of this study consisted of 61 students who took the integrated mathematics computing course calculus  . This is a development research (R&D), where each student develops learning media then validated and field trials. We assess each media resulting from the development using questionnaires and field observations. The results showed that as many as 85% of students have been able to innovate well in developing learning media NVL-based including function limit materials, derivatives, and integrals. The results of the assessment of the expert team showed that the ability of students in developing learning media reached an average score of 3.97 which is categorized as "innovative", while the results of product trials for early-level students obtained an average of 4.07 blessings "very qualified". Furthermore, the practicum module and all media results of student development have been uploaded to the University's Learning Management System Moodle-based for use in the learning process in the future. We hope that the learning media that has been developed can be applied to calculus learning in the future.
On the Explicit Formula for Eigenvalues, Determinant, and Inverse of Circulant Matrices
Authors: Aliatiningtyas Nur , Guritman Sugi , Wulandari Teduh
Published: June 2023

Determining eigenvalues, determinants, and inverse for a general matrix is computationally hard work, especially when the size of the matrix is large enough. But, if the matrix has a special type of entry, then there is an opportunity to make it much easier by giving its explicit formulation. In this article, we derive explicit formulas for determining eigenvalues, determinants, and inverses of circulant matrices with entries in the first row of those matrices in any formation of a sequence of numbers. The main method of our study is exploiting the circulant property of the matrix and associating it with cyclic group theory to get the results of the formulation. In every discussion of those concepts, we also present some computation remarks.
Mathematical Model of the Central Lombok Regency People’s Interest towards the COVID-19 Vaccination
Authors: Himmah Elok Faiqotul , Riana Riana
Published: June 2023

The COVID-19 vaccination program as an effort to prevent COVID-19 infection is still less attractive to the public in some areas in Indonesia, one of which is Central Lombok Regency. This is indicated by data on the number of complete vaccine recipients who still have not reached the threshold value for the formation of herd immunity. The factors that influence people's interest in COVID-19 vaccination can be analyzed using a mathematical model. This study aims to obtain a mathematical model of the interest of the people of Central Lombok Regency towards COVID-19 vaccination and to find out what factors most influence the interest of the people of Central Lombok Regency towards COVID-19 vaccination. The method used in this research is quantitative descriptive method. The data collection technique used a questionnaire that was given randomly to 332 respondents, namely the people of Central Lombok Regency in the age range of 12 to 70 years. Data analysis was based on multiple linear regression analysis with classical assumption tests, namely normality, multicollinearity, and heteroscedasticity tests. The results of the study obtained a mathematical model of the interest of the people of Central Lombok Regency towards COVID-19 vaccination. Variable of trust in the vaccine effectiveness and trust in the government are the factors that influenced the interest of the people of Central Lombok Regency towards COVID-19 vaccination.
Dilated Convolutional Neural Network for Skin Cancer Classification Based on Image Data
Authors: Khasanah Uswatun , Surarso Bayu , Farikhin Farikhin
Published: June 2023

Skin cancer is a disorder of cell growth in the skin. Skin cancer has a big impact, causing physical disabilities that can be seen directly and high treatment costs. In addition, skin cancer also causes death if nor treated properly. Generally, dermatologists diagnose the presence of skin cancer in the human body by using the Biopsy process. In this study, the Dilated Convolutional Neural Network method was used to classify skin cancer image data. Dilated Convolutional Neural Network method is a development method of the Convolutional Neural Network method by modifying the dilation factors. The Dilated Convolutional Neural Network method is divided into two stages, including feature extraction and fully connected layer. The data used in this study is HAM1000 dataset. The data are dermoscopic image datasets which consists of 10015 images data from 7 types of skin cancer. This study conducted several experimental scenarios of changes in the value of d, which are 2,4,6, and 8 to get the optimal results. The parameters used in this study are epoch = 100, minibatch size = 8, learning rate = 0.1, and dropout = 0.5. The best results in this study were obtained with value of d=2 with the value of accuracy is 85.67% and the sensitivity is 65.48%.
The Development of Project Based Learning Module for Vocational High Schools to Improve Critical Thingking Skills
Authors: Baidowi Baidowi , Arjudin Arjudin , Novitasari Dwi , Kertiyani Ni Made Intan
Published: June 2023

Critical thinking is one of the skills needed by vocational high school students in the world of work and has a positive impact on students' fieldwork practices. Therefore the aim of this research is to produce a mathematics module focused on critical thinking skills using a project-based learning model. Thiagarajan's 4D development model, namely define, design, develop, and dissemination, is used in this research and development model. Validation tests, questionnaires, observations, interviews, and critical thinking tests were used to collect data. Data analysis was carried out quantitatively and qualitatively. Quantitative analysis uses descriptive statistical tests and T-tests while qualitative analysis comes from suggestions and input from media experts, materials, practitioners, teachers, and students. The results showed that: (1) the mathematics module for grade 11th vocational high school met valid criteria based on the assessment of material experts, media experts, practitioners, teachers, and students; and (2) with a sig score of 0.000 from the T-test, students who took the module these have better critical thinking skills than those who don't. So that this module can be classified as effective for use in learning. This indicates that this module meets the requirements for use in learning.
Geometry Exploration for the Development of Ethnomathematics Worksheet Based on the Ornament of Jingah River Jami Mosque
Authors: Suryaningsih Yuni , Fajriah Noor , Kamid Kamid
Published: June 2023

Lack of availability of culturally oriented worksheets around students to improve the character of loving the motherland. The Merdeka Curriculum allows educators to develop teaching materials adapted to the characteristics of each region. This study aims to establish a worksheet with ethnomathematics exploration of the ornaments of the Jingah River Jami Mosque. The research method used is the Plomp model development method which consists of four stages, namely: (1) initial investigation; (2) designs; (3) construction; and (4) test, evaluation, and revision—methods of data collection, namely the method of observation, interviews, and questionnaires. The data analysis technique used is descriptive qualitative and descriptive quantitative. The research subjects included experts as validators, and 7th-grade junior high school students on a limited basis. The results of the validator's assessment were 4,77, the results of the restricted group trials were 80,00%. So the ethnomathematics-based student worksheets for the ornament of the Jingah River Jami mosque are obtained, which are valid, and practical.
Cluster Analysis of Environmental Pollution in Indonesia Using Complete Linkage Method with Elbow Optimization
Authors: Damayanti Adelia , Utami Wika Dianita , Novitasari Dian Candra Rini , Intan Putroue Keumala , Kurniawan Mohammad Lail
Published: June 2023

The issue of environmental contamination remains unsolved. The problem continues to have a substantial detrimental impact. This research aimed to identify provinces in Indonesia with high or low levels of environmental pollution so that the government may offer treatment to provinces with high levels of pollution and seek a significant reduction in the incidence of environmental pollution in Indonesia. Clustering is required to identify provinces with high and low pollution levels using the complete linkage method because this method can provide tight clusters and is less impacted by outliers. The analysis of the complete linkage method with Elbow optimization revealed two optimal clusters, namely high and low clusters. The high cluster consists of three provinces: Central Java, West Java, and East Java. The low cluster consists of 31 provinces. This research used a Silhouette Coefficient validity test. The value of the Silhouette Coefficient is 0.75. The value indicates that the data object is in the correct cluster and that the cluster structure is relatively strong.
PENGEMBANGAN KARAKTER NASIONALISME KELOMPOK TANI DI WILAYAH PERBATASAN MELALUI PEMBIASAAN
Authors: Keraf Fransiskus Markus Pereto , Feka Yanuarius Sani
Published: June 2023

Abstrak: Penelitian ini dilatarbelakangi oleh rendahnya penggunaan Bahasa Indonesia dalam kehidupan kelompok tani. Tujuan penelitian ini untuk mengetahui proses pengembangan karakter nasionalisme melalui pembiasaan di kelompok tani Oelkunu. Proses penelitian menggunakan pendekatan kualitatif dengan metode deskriptif. Subjek dalam penelitian ini adalah anggota kelompok tani dan masyarakat sekitarnya. Teknik pengumpulan data yang digunakan adalah observasi, wawancara, dan dokumentasi. Analisis keabsahan data terdiri dari reduksi data, penyajian, dan penarikan kesimpulan. Teknik yang digunakan oleh kelompok tani dalam menguatkan karakter nasionalisme pesertadidik adalah melalui habituasi. Melalui pembiasaaan ini, kelompok menyelenggarakan kegiatan yang meliputi penggunaan Bahasa Indonesia dan penerapan budaya senyum, salam dan sapa. Hasil penelitian menunjukan bahwa melalui program habituasi yang diselenggarakan oleh kelompok tani mampu untuk menguatkan karakter nasionalisme anggota kelompok. Hal tersebut dibuktikan oleh perilaku dan juga aktivitas sehari –hari para anggota kelompok tani.Abstract:  This research is motivated by the low use of Indonesian in the life of farmer groups. The purpose of this study was to determine the process of developing the character of nationalism through habituation in Oelkunu farmer group. The research process used a qualitative approach with descriptive methods. The subjects in this study were members of farmer groups and the surrounding community. Data collection techniques used are observation, interviews, and documentation. Analysis of the validity of the data consists of data reduction, presentation, and drawing conclusions. The technique used by farmer groups in strengthening the nationalist character of students is through habituation. Through this habituation, the group organizes activities that include the use of the Indonesian language and the application of the culture of smiling, greeting and greeting. The results showed that the habituation program organized by farmer groups was able to strengthen the nationalistic character of group members. This is evidenced by the behavior and daily activities of the members of the farmer groups.
EKSISTENSI NILAI SOSIAL BUDAYA DALAM MENUMBUHKAN KARAKTER MASYARAKAT KAMPUNG TANAH TINGGI
Authors: Amanda Tika , Ihsan Ihsan
Published: June 2023

Abstrak: Kajian ini bertujuan untuk mengetahui nilai-nilai karakter masyarakat yang terkandung dibalik adanya pengolahan produksi Virgin Coconut Oil (VCO) di Kampung Tanah Tinggi. Sebelum penulis melakukan kajian ini, telah dilaksanakan pengabdian selama dua (2) tahun melalui Program Holistik Pembinaan & Pemberdayaan Desa dan Program Pengembangan & Pemberdyaan Desa terkait Pengolahan Virgin Coconut Oil (VCO). Jenis penelitian yang digunakan adalah deskriptif dengan pendekatan kualitatif. Melalui sumber data berupa dokumentasi, kuisioner, dan wawancara telah memperlihatkan bahwa terdapat  perubahan-perubahan yang terjadi selama masa pengabdian tersebut. Hasil dari penelitian ini berupa eksistensi nilai sosial budaya dalam menumbuhkan karakter masyarakat Kampung Tanah Tinggi, nilai karakter tersebut ialah religius, toleransi, disiplin, kerjakeras, tanggungjawab, peduli lingkungan, dan kreatif. Dari adanya perbedaan Suku, Agama, Ras, dan antar golongan sangat berdampak kepada karakter-karakter yang tumbuh dari hidup bersosial melalui mempertahankan nilai sosial budaya yakni Virgin Coconut Oil (VCO). Hal ini perlu dilestarikan agar tetap eksis sehingga mampu membentuk nilai-nilai karakter pada kehidupan bermasyarakat.Abstract:  This study aims to determine the community character values contained behind the processing of Virgin Coconut Oil (VCO) production in Tanah Tinggi Village. Before the author conducted this study, two (2) years of service had been carried out through the Holistic Village Development & Empowerment Program and the Village Development & Empowerment Program related to Virgin Coconut Oil (VCO) Processing. The type of research used is descriptive with a qualitative approach. Through data sources in the form of documentation, questionnaires, and interviews, it has been shown that there were changes that occurred during the service period. The results of this study are the existence of socio-cultural values in growing the character of the Tanah Tinggi village community, the character values are religious, tolerance, discipline, hard work, responsibility, environmental care, and creativity. The existence of differences in ethnicity, religion, race, and inter-group greatly impacts the characters that grow from social life through maintaining socio-cultural values, namely Virgin Coconut Oil (VCO). This needs to be preserved in order to continue to exist so as to be able to form character values in social life.
PERSPEKTIF PENDIDIKAN MULTIKULTURAL DITINJAU DARI PEMBELAJARAN IPA TERPADU
Authors: Akhmad Nur Amaliah , Syarif St. Humaerah , Basri Syamsuriana
Published: June 2023

Abstrak: Pendidikan multikultural sudah sangat luas di gaungkan apalagi Indonesia sebagai negara Bhineka Tunggal Ika. Penguatan pendidikan multikultural menjadi konteks yang sangat relevan dalam mengatasi krisis moral yang saat ini menjadi bagian masalah di negra kita. Krisis moral menjadi hal yang menghawatirkan dan bisa melibatkan anak-anak kita dimasa akan datang. Pendidikan IPA sebagai mata pelajaran ilmu alam menjadi salah satu pembelajaran yang mempu menguatkan perbedaan antara peserta didik disekolah melalu berbagai cara. Cara-cara yang umum dilakukan pembelajaran IPA untuk menguatkan perbedaan yakni melalui proses diskusi, praktikum maupun karyawisata alam. Tujuan penelitian ini adalah sebagai salah satu referensi guru IPA dalam meningkatkan pembelajaran yang mampu mempersatukan anak didik dalam perbedaan di kelas.  Metode penelitian yang digunakan adalah kajian pustaka dari berbagai jurnal dan buku yang mengkaji pendidikan multicultural dalam pembelajaran IPA. Abstract:  Multicultural education has been widely promoted, especially since Indonesia is a country of Unity in Diversity. Strengthening multicultural education is a very relevant context in overcoming the moral crisis that is currently part of the problem in our country. The moral crisis is a worrying thing and can involve our children in the future. Science education as a natural science subject is one of the lessons that can strengthen the differences between students at school in various ways. The common ways in which science learning is carried out to support differences are through the process of discussion, practicum, and nature field trips. This study aims to serve as a science teacher's reference in improving learning that can unite students with class differences. The research method used is a literature review from various journals and books that examine multicultural education in science learning.
PERSEPSI PESERTA DIDIK TERHADAP APLIKASI TELEGRAM SEBAGAI MEDIA PEMBELAJARAN KANJI DASAR
Authors: Rasiban Linna Meilia , Adhellayani Adhellayani , Renariah Renariah , Sutjiati Neneng
Published: June 2023

Abstrak: Penggunaan mobile learning pada masa pandemi Covid-19 semakin meningkat karena sangat membantu menyampaikan materi saat pembelajaran. Penelitian ini bertujuan untuk menginvestigasi respon peserta didik terhadap penggunaan aplikasi Telegram sebagai media pembelajaran kanji dasar. Subjek penelitian dari penelitian ini adalah peserta Akari Kanji Course yang berjumlah 12 orang terdiri dari kalangan mahasiswa, karyawan, ibu rumah tangga, dan guru. Penelitian ini menggunakan metode penelitian kualitatif dengan teknik pengumpulan data menggunakan kuesioner dan wawancara. Hasil analisis data menunjukkan bahwa penggunaan aplikasi Telegram dalam pembelajaran kanji dasar menghasilkan respon yang positif dari peserta dan peserta merasa terbantu dalam belajar kanji. Abstract:  The use of mobile learning during the Covid-19 pandemic is increasing because it is accessible in conveying material during studying. This study aims to investigate student responses of the Telegram application as a media learning for basic kanji. The research subjects of this study were the 12 participants of the Akari Kanji Course are students, employees, housewifes, and teachers. This study uses qualitative research methods with data collection techniques using questionnaires and interviews. The results showed that the use of the Telegram application in learning basic kanji resulted in a positive response from the participants then the participants found it helpful in learning kanji.