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All Journal HAYATI Journal of Biosciences JAUR (Journal of Architecture and Urbanism Research) eProceedings of Engineering
Cahyaningrum, Eka
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Behaviour of Wild, Non-Adult Bornean White-Bearded Gibbons (Hylobates albibarbis) in Indonesia Cheyne, Susan; Quiroga, C. Julia; Moise, Kate L.; Mawdsley, Claire E.; Astaras, Christos; K, Abdulaziz; Cahyaningrum, Eka
HAYATI Journal of Biosciences Vol. 32 No. 4 (2025): July 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.4.957-968

Abstract

Primates have an extended juvenile period associated with critical social and environmental learning. In particular, social play is positively associated with brain size in primates, indicating an important role in cognition and development. However, this behaviour has been overlooked in the Hylobatidae family. The activity patterns of eight non-adult Bornean white-bearded gibbons (Hylobates albibarbis) from four groups were studied in the Sebangau peat-swamp forest in Borneo from 2005 to 2019. We compare our findings to previous reports for adult conspecifics, report the directionality of non-adult play behaviour, and examine whether the weather impacts daily activity patterns. Feeding (39.5%), resting (27.6%) and travelling (23%) were the main activities of juveniles, while infants mostly played (42.1%) or clung to their mothers (38.3%). Non-adult groups socialised and observed their surroundings more often, and they travelled and called less often than adults. Feeding and resting frequency did not differ significantly from that of adults. Infants engaged in self-centred play twice as often as juveniles and directed most of their playing attention towards sub-adults (58%). Weather variables, previously reported to be good predictors of certain adult activities, such as singing, did not appear to affect infant and juvenile activities. Play is a critical part of primate physical and social development, and this study describes some key behaviours of young gibbons. Understanding the play behaviour of gibbons in the wild will help inform the rehabilitation of an ever-increasing number of orphaned individuals who are victims of the illegal pet trade.
Perencanaan Rute Distribusi Barang Spare Part Dengan Algoritma Artificial Bee Colony Studi Kasus : Pt Padma Soode Indonesia Cahyaningrum, Eka; Arifin, Miftahol; Hidayatuloh, Syarif
eProceedings of Engineering Vol. 12 No. 3 (2025): Juni 2025
Publisher : eProceedings of Engineering

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Abstract

Penelitian ini menganalisis optimasi rute distribusispare part pada PT Padma Soode Indonesia denganmenggunakan Algoritma Artificial Bee Colony. Tujuanpenelitian ini adalah untuk mengoptimalkan rute distribusi danmengurangi biaya operasional perusahaan. Metode yangdigunakan adalah Algoritma Artificial Bee Colony denganmembandingkan Algoritma Ant Colony yang nantinyaditeruskan pendekatan split delivery untuk mengatasipermasalahan overloading pada kendaraan. Data yangdianalisis mencakup delapan rute distribusi denganmempertimbangkan kapasitas kendaraan maksimum 220 box.Hasil penelitian menunjukkan bahwa implementasi AlgoritmaArtificial Bee Colony dengan sembilan rute berhasilmengoptimalkan rute distribusi dengan memangkas waktu danjarak tempuh lebih signifikan dibandingkan dengan AlgoritmaAnt Colony dan kondisi sebelumnya. Optimasi ini menghasilkanpenghematan biaya bahan bakar dan peningkatan efisiensioperasional perusahaan. Untuk implementasi jangka pendek 1-2 tahun, direkomendasikan menggunakan outsourcing dariDeliveree dengan biaya Rp144.000.000 per tahun. Sedangkanuntuk jangka panjang 3-5 tahun disarankan membeli armadabaru tipe 136 MDL STD dengan biaya Rp166.067.114,3 pertahun, atau tipe FL 280 JW untuk periode 5-10 tahun denganbiaya Rp292.083.114,3 per tahun jika perusahaan melakukanekspansi besar.Kata kunci— optimasi rute, artificial bee colony, distribusi sparepart, Vehicle routing problem, capacited vehicle routing problem
Penerapan Konsep Neo-Vernakular pada Desain Atap Amorty Billiards Indonesia di Kota Malang Cahyaningrum, Eka; Anggraini, Rheina; Murti, Farida; Tohar, Ibrahim
JAUR (JOURNAL OF ARCHITECTURE AND URBANISM RESEARCH) Vol. 8 No. 2 (2025): JAUR April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jaur.v8i2.12301

Abstract

This study explores the application of neo-vernacular architectural concepts to the roof design of the Amorty Billiards Indonesia building in Malang City. Neo-vernacular architecture is included in an approach that blends traditional local characters with modernity, using local materials and culture. The research method used in this study is a qualitative method through direct observation and documentation. The results of this research show that building roofs using clay tiles provide coolness and weather resistance even though they require regular maintenance. The Joglo Lawakan roof shape was chosen to add aesthetic and symbolic value to Javanese culture. This combination creates a classic and modern impression, enriches the aesthetics of the building and supports the preservation of local cultural values. This research concludes that the Implementation of Neo-vernacular architecture on the Amorty Billard roof has a positive impact on the environment and maintains traditional values ​​in a modern architectural context.
Co-Authors Anggraini, Rheina Astaras, Christos Cheyne, Susan Farida Murti K, Abdulaziz Mawdsley, Claire E. MIFTAHOL ARIFIN, MIFTAHOL Moise, Kate L. Quiroga, C. Julia Syarif Hidayatuloh Tohar, Ibrahim