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All Journal Statistika Jurnal Sains Dasar CAUCHY: Jurnal Matematika Murni dan Aplikasi Jurnas Nasional Teknologi dan Sistem Informasi Journal of Honai Math Jurnal Cendekia : Jurnal Pendidikan Matematika Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam JURNAL CEMERLANG: Pengabdian pada Masyarakat JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Journal of Science and Science Education Jurnal Pengabdian Papua
Felix Reba
Universitas Cenderawasih, Papua
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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PERAN SERTA MASYARAKAT DALAM MENGHADAPI KEMAJUAN TEKNOLOGI INFORMASI (ERA DIGITALISASI) Habel Saud; Mikhael Udam; Yansen Alberth Reba; Felix Reba; Ahmad Sofyan
JURNAL CEMERLANG : Pengabdian pada Masyarakat Vol 5 No 2 (2023): JURNAL CEMERLANG: Pengabdian Pada Masyarakat
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/jpm.v5i2.2237

Abstract

The current community service seminar aimed to increase public insight regarding the use of information technology as a medium that expedites and facilitates educational, health, economic, business, socio-cultural and political activities. This activity for community service used lecture, discussion or question and answer methods. Then, the method for the problem-solving framework consisted of: 1) the preparation stage, 2) the discussion stage for community service material, and 3) the evaluation stage, as well as seminars related to community participation in dealing with advances in information in the digitalization era. This seminar activity involved elements of the local government which included the Kemtuk Gresi District/Sub-District Head, village heads in the Kemtuk Gresi District, the Kemtuk Gresi Customary Council and youth elements (KNPI of Kemtuk Gresi District) of Jayapura Regency, especially the millennial generation, community elements such as religious leaders , educational leaders, and traditional leaders. Based on the research results, 34 community members (97.14%) stated that science and technology (S&T) is beneficial in the globalization era for people's lives, but 1 community member stated that science and technology (S&T) does not necessarily bring benefits to life. Thus, it was concluded that most members of the community who attended the community service seminar on community participation in dealing with advances in information technology (digitalization era) understand and comprehend the positive and negative influences of science and technology for life and young people in the era of globalization. Meanwhile, a small number of people make use of science and technology in their daily lives both to support student learning activities, social activities and facilitate economics and business.
Penerapan Alat Tangkap Ramah Lingkungan (Bubu Lipat) Bagi Nelayan Lokal di Kampung Enggros Teluk Youtefa Kota Jayapura, Papua Efray Wanimbo; Kalvin Paiki; Korinus Rejauw; Felix Reba; Poppy I L Ayer
JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Vol 4, No 3: Agustus (2023)
Publisher : ICSE (Institute of Computer Science and Engineering)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36596/jpkmi.v4i3.685

Abstract

Abstrak: Teluk Youtefa sebagai Kawasan Konservasi tidak hanya mendapat tekanan masukkan bahan pencemar dari daratan, tetapi juga aktivitas penangkapan nelayan local yang bermukim di sekitar wilayah tersebut. Penggunaan alat tangkap yang kurang efektif cenderung berdampak negative terhadap biota maupun habitatnya. Berdasarkan kondisi tersebut, maka perlu langkah solutif guna mempertahankan Teluk Youtefa sebagai Kawasan Konservasi, namun tetap mempertimbangkan keberlangsungan kehidupan nelayan local di kawasan tersebut dengan cara mengembangkan jenis alat tangkap yang ramah lingkungan. Kegiatan pendampingan terdiri dari tahapan penyuluhan, diskusi, pembuatan bubu lipat sebagai alat tangkap ramah lingkungan dan analisis tingkat kepuasan kelompok mitra terhadap kegiatan tersebut. Hasil diskusi dua arah, menunjukkan kelompok mitra proaktif menyampaikan saran, pendapat dan identifikasi jenis alat tangkap yang digunakan serta bagaimana solusi mengatasi permasalahan yang dihadapi. Langkah solutif dalam mengurangi alat tangkap yang cenderung merusak ditindaklanjut dengan pengembangan jenis bubu lipat rajungan. Kegiatan pendampingan, diikuti secara seksama oleh peserta mitra sebagai pelaku utama dalam kegiatan tersebut, memahami dengan baik cara desain dan pemasangan bubu lipat dari tahap awal hingga akhir. Tingkat pemahaman dan kepuasan peserta mitra diketahui melalui analisis kusioner yang mencakup 4 komponen yakni Pengetahuan Umum (penggalian informasi), Materi Pengabdian, Tingkat Kepuasan dan Harapan Peserta. Komponen pertama, 30% peserta pernah mendengar atau mengetahui informasi tentang bubu lipat dan 70% belum mengetahui. Cara pengoperasian 7.67% pernah mengoperasikan dan 92.3% belum pernah mengoperasikan. Cara desain dan pembuatan 100% belum pernah. Komponen kedua, peserta mitra tertarik dan sangat paham serta memperoleh pengetahuan baru dengan nilai presentase 100%.  Komponen ketiga 100% menyatakan memperoleh pengetahuan dan pengalaman baru serta sangat puas dengan adanya kegiatan tersebut. Komponen keempat 100% kelompok mitra mengharapkan kegiatan-kegiatan pelatihan terus dilakukan guna meningkatkan kreatifitas para nelayan dalam mengembangkan model alat tangkap ramah lingkungan di Kampung Enggros.Abstract: Youtefa Bay as a Conservation Area is not only under pressure to include pollutant materials from the mainland, but also the fishing activities of local fishermen who live around the area. The use of less effective fishing gear tends to have a negative impact on biota and their habitat. Based on these conditions, a solution is needed to maintain Youtefa Bay as a Conservation Area, while still considering the sustainability of the lives of local fishermen in the area by developing environmentally friendly types of fishing gear. The training activities consist of stages of coaching, discussion, making folding traps as an environmentally friendly fishing gear and analysis of the level of satisfaction of the partner groups for these activities. The results of the two-way discussion showed that the partner groups were proactive in conveying suggestions, opinions and assistance with the types of fishing gear used and how solutions to overcome the problems encountered. Solutive steps in reducing fishing gear that tend to damage are followed up by developing a type of folding crab trap. The training activities, followed closely by the partner participants as the main actors in the activity, understand very well how to design and install folding bins from the start to the end. The level of understanding and satisfaction of partner participants is known through questionnaire analysis which includes 4 components namely General Knowledge (information gathering), Service Material, Participant Satisfaction Level and Expectations. The first component, 30% of participants had heard or knew information about folding pots and 70% did not know. How to operate 7.67% have ever operated and 92.3% have never operated. How to design and manufacture 100% never before. The second component, partner participants are interested and really understand and acquire new knowledge with a percentage value of 100%. The third component 100% stated that they gained new knowledge and experience and were very satisfied with the activity. The fourth component, namely the expectations of the partner group with a percentage of 100%, hopes that training activities will continue to be carried out in order to increase the creativity of fishermen in developing models of environmentally friendly fishing gear in Enggros Village.
The Ethnomathematics of Symmetric War-boat of Biak Tribe Sroyer, Alvian M.; Nainggolan, Jonner; Beno, Ishak S.; Reba, Felix
Journal of Honai Math Vol. 8 No. 2 (2025): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v8i2.872

Abstract

The Wairon is a traditional warboat of the Biak tribe, characterized by its unique symmetrical structure tailored for combat navigation. This research explores the mathematical principles embedded in its construction from an ethnomathematical perspective, addressing the gap in literature on how indigenous maritime engineering reflects advanced spatial reasoning. The study aims to document and analyze the symmetrical design elements of the Wairon to uncover how Biak boatbuilders apply geometric and anthropometric logic in practice. Using an exploratory qualitative method with triangulation, data were gathered through 12 in-depth interviews with cultural experts and elder artisans, direct observations of three traditional boat-building sessions, and literature analysis of maritime knowledge. Triangulation was applied by comparing themes that emerged independently across these three data sources. The collected qualitative data were analyzed using a thematic coding framework with multiple coding cycles, focusing on patterns of symmetry, measurement techniques, and structural logic. Codes were reviewed through peer validation and saturation was reached after the third data source. Symmetry in this study is operationally defined as bilateral congruence across a central longitudinal axis, as observed in the mirrored placement of najun (crossbeams), outriggers, pegs, and bow carvings. Evidence was gathered through measurements of spatial repetition, alignment consistency, and anthropometric mapping (e.g., arm span and fathom units) used by artisans during construction. Key findings highlight that the Wairon's design reflects a high degree of symmetry not only for aesthetic or symbolic purposes but also for tactical advantages in battle, allowing seamless directional shifts. The theoretical implications contribute to the expansion of ethnomathematics by contextualizing symmetry as both a cultural logic and a navigational solution, while practically, these insights provide a model for integrating indigenous design principles into STEM education and support initiatives for digital heritage preservation and virtual reconstruction of traditional technologies
Clustering and Mixture Model Analysis of Human Development Index in Papua: A Study Based on Educational Data (2010–2023) Sroyer, Alvian; Morin, Henderina; Reba, Felix; Wororomi, Jonathan; Languwuyo, Agustinus
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 10, No 2 (2025): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v10i2.32988

Abstract

The purpose of this research is to analyze the distribution of the Human Development Index (HDI) in Papua based on the average length of schooling during the period 2010–2023 using the Gaussian Mixture Model (GMM) approach. Data from 27 districts are grouped into three clusters based on the distribution characteristics of each region. Weibull, Nakagami, and Generalized Extreme Value (GEV) distributions were selected to represent Cluster 1, Cluster 2, and Cluster 3, with parameter estimation using Maximum Likelihood Estimation (MLE). The results of the analysis show that Cluster 1 includes areas with low HDI such as Mamberamo Raya and Yahukimo, Cluster 2 reflects moderate HDI in areas such as Nduga and Tolikara, while Cluster 3 describes high HDI in districts such as Jayapura and Mimika. The mixture model that combines these three distributions provides an accurate representation of the HDI distribution pattern in Papua. Policy implications from these results include the development of cluster-based education programs to improve access to education in areas with low HDI, reduce educational disparities in areas with moderate HDI, and maintain sustainable development in areas with high HDI. This approach can be a reference for similar analyses in other regions with high development heterogeneity characteristics
Co-Authors Agustinus Langowuyo Agustinus Langowuyo Ahmad Sofyan Alvian M Sroyer Felix Reba Felix Reba Habel Saud Handiko Handiko Henderina Morin, Henderina Ishak Semuel Beno Jonathan k. Wororomi Jonner Nainggolan Kalvin Paiki Korinus Rejauw Languwuyo, Agustinus Mandowen, Samuel Aleksander Mikhael Udam Popi Ida Laila Ayer Sara Yokhu Tiku Tandiangnga Yansen Alberth Reba Yosefina Sarena