20988 research outputs found
Sort by
TAKE-BACK STRATEGY SELECTION FOR SMARTPHONES IN A CLOSED-LOOP SUPPLY CHAIN USING THE AHP WITH BOCR METHOD
No full textAs smartphones become ubiquitous around the world, sustainable management practices to mitigate the environmental impact of electronic waste are becoming increasingly urgent. Thus, we combined the Analytic Hierarchy Process (AHP) and a Benefits, Opportunities, Costs, and Risks (BOCR) analysis to evaluate several smartphone take-back strategies in Indonesia’s closed-loop supply chain. We examined trade-in options, with and without upfront fees, contracts with providers, and donation initiatives. Through a survey distributed among diverse demographic segments (business owners, managers, staff, contract staff, and students), we captured a wide array of stakeholder perspectives on the methods preferred for smartphone recovery. Business owners and contract staff were found to prefer trade-ins with upfront fees, whereas the other groups preferred trade-ins. In addition, a sensitivity analysis revealed that, if the weight of the benefits increased, donations became the most popular alternative for all groups except for students. Therefore, this article contributes to the literature on supply-chain management by offering insights into the stakeholder preferences that drive the adoption of sustainable and efficient product-recovery strategies in telecommunications
Developing and Evaluating an Educational Game to Support Early Reading Skills in Kindergarten Students
No full textReading is a crucial skill that should be learned from an early age, as it plays a vital role in daily life. While most children can easily learn to read, some struggle with the process. Therefore, effective learning media are needed to support childrens reading development. This study develops and evaluates an educational game to assist young children in learning to read. Unlike previous studies, the game integrates multiple interactive modes that reinforce word recognition, spelling, and sentence construction through auditory and visual cues. The game features a simple user interface, a collection of 100 open vocabulary words, and three gameplay modes designed to support different aspects of early reading skills. The games effectiveness was assessed through an experiment involving 12 kindergarten students, divided into a game-playing and a non-game-playing group. The findings indicate that the educational game can enhance kindergarten students reading skills. Moreover, the game increases students enthusiasm and motivation for learning to read. However, further improvements, such as additional features and platform expansion, are necessary to make the game more accessible to a broader audience
Morfologi Struktur: Bentuk, Struktur, Material
No full textBentuk struktur bangunan dapat dihasilkan dari beberapa pendekatan untuk mendapatkan hasil desain yang unik. Dalam buku Morfologi Struktur: Bentuk, Struktur, dan Material ini, terbentuknya struktur dipandang sebagai hasil dari kesatuan dan ketertarikan/hubungan timbal balik antara bentuk, sistem struktur, dan material struktural. Dalam desain arsitektur, keterkaitan/hubungan timbal balik tersebut dapat menjadi inspirasi desain yang unik.
Sebelum membahas hubungan keterkaitan/hubungan timbal balik antara bentuk, sistem struktur, dan material struktural, masing-masing dari tiga aspek tersebut dibahas secara parsial, baru kemudian dibahas bagaimana keterkaitan di antara ketiganya. Bentuk ada tiga jenis, yaitu bentuk aktif, non aktif, dan semi aktif. Material ditinjau dari dua aspek, yaitu dari sifat mekanisnya dan dari segi teknologinya, yang mencakup proses pengerjaan dari bahan baku sampai dengan menjadi komponen-komponen serta konstruksi bangunan. Jenis material dari sifat mekanisnya terdiri dari material mono-directional dan bi-directional. Sementara itu, pembahasan struktur mencakup jenis-jenis sistem struktur.
Keterkaitan tiga aspek tersebut, dapat lebih didalami dengan memahami statika dari beberapa sistem struktur dan pendimensian komponen struktur, namun pembahasan ini bukan untuk memampukan pembaca melakukan perhitungan struktur secara mendalam, karena hal itu masuk dalam ranah teknik sipil. OLeh karena itu, dipilihkan metode aproksimasi yang tidak teliti, namun cukup untuk dapat memahami bagaimana setiap jenis struktur bekerja menerima pembebanan dan bagaimana pola pembebanan berpengaruh pada bentuk geometri lintasan gaya, bentuk lintasan gaya berpengaruh pada bentuk struktur, dan material jenis apa yang sesuai untuk digunakan. Selain itu, dengan mempelajari perhitungan dimensi struktur secara aproksimasi, pembaca dapat mengonfirmasi kesesuaian antara hasil perhitungan dengan teori.
Buku ini diakhiri dengan membahas efisiensi dan bentuk struktur, yang pembahasannya menekankan pada efisiensi struktur sebagai pemicu ide bentuk struktur. Dengan pemahaman yang baik melalui isi buku ini, diharapkan perancang arsitek atau mahasiswa arsitektur punya cukup bekal untuk berkreasi
Sustainable Values in the Structure of Traditional Osing Houses in Indonesia
No full textThe worldwide energy crisis is causing people in most countries to reduce their
energy use to prevent the next generation from being unable to fulfill their needs. The Osing people use sustainability values based on traditions passed down from generation to generation with appropriate technology to fit the needs of the people and their environment.
This research employs a qualitative descriptive method with a literature review and data collection. Based on the framework used by Iwanmura, Osing house construction primarily focuses on the principles of low impact and health and amenity. This study reveals that the architectural design and construction process of an energy-efficient traditional building can be adapted to contemporary sustainable housing. The primary aim was to identify and analyze sustainability values in the construction process and techniques of traditional Osing houses in Kemiren Village, Banyuwangi, which can serve as a reference for modern sustainable architecture practices. The study reveals the uniqueness of traditional Osing construction using the local material Bendo wood, which can be dismantled from the
foundation up to the roof joint systems, thus allowing the materials to be repaired and recycled down to the smallest parts and minimizing construction waste. The advantage of this building construction process is the use of traditional housing techniques to minimize the need for mechanical systems. This traditional construction method, using wood as the building material and considering climatic features, demonstrates how to achieve sustainable building values throughout all elements of a building that provides users with comfort and safety
The Impact of Social Media Influencers on Attitudes toward Local Food and Behavioral Intentions: A Study on Foreign Tourists Visiting Bali
Get PDFThe rapid growth of social media has transformed the way people interact
and communicate globally. This study investigates the role of social media
influencers in shaping foreign tourists� attitudes toward local food and their
behavioral intentions, with a particular focus on the mediating role of
attitudes toward local food. Data were collected through self-administered
questionnaire surveys from 201 international tourists visiting Bali between
July and August 2023. The Partial Least Squares Structural Equation Modeling
(PLS-SEM) technique, implemented via SmartPLS 4.0, was employed to
analyze the proposed causal relationships among social media influencers,
attitudes toward local food, and behavioral intentions. The findings reveal that
social media influencers positively and significantly impact foreign tourists
behavioral intentions. Additionally, attitudes toward local food have a
significant positive effect on behavioral intentions. However, social media
influencers does not significantly influence tourists� attitudes toward local
food. Furthermore, attitudes toward local food does not mediate the
relationship between social media influencers and behavioral intentions. This
study offers valuable insights for destination marketers aiming to attract more
visitors and enhance destination promotion by strategically leveraging social
media influencers
Trends of child sexual abuse in Indonesia: From research design to data analysis
Get PDFChild sexual abuse (CSA) remains a significant concern globally, including in the Indonesian context. This research furnishes a thorough examination of CSA research trajectories through the application of content analysis. Scholarly articles were sourced from the Scopus database, spanning 2009 to 2024, with particular emphasis on CSA within Indonesia. The originality of this investigation resides in its methodical assessment of the trends, research methodologies, subjects, and approaches employed in CSA studies, thereby offering a holistic viewpoint to the prevailing body of literature. This research addresses the following inquiries: (1) What trends characterize the volume of CSA research in Indonesia? (2) What variations are evident in the employed research methodologies? (3) Which thematic areas are predominantly addressed in CSA research? (4) What data collection strategies are implemented? (5) Which research subjects receive the most attention? (6) What analytical methods are utilized? Employing the principles of content analysis, data was amassed in October 2024. The findings revealed a notable escalation in CSA research after the COVID-19 pandemic, predominantly centering on quantitative approaches. Most studies employed document analysis as their focal point while prioritizing non-victim perspectives. Concurrently, the legal aspect of CSA emerged as the most frequently investigated theme. Systematic methodologies predominated both data collection and analysis techniques. The results underscore several principal recommendations: (1) Foster an increase in qualitative research to yield a deeper understanding of the intricate dimensions of CSA. (2) Emphasize victim-centered research to enhance the contextual comprehension of traumatic experiences. (3) Incorporate the Gender Equality and Social Inclusion (GESI) framework into CSA research to cultivate a more inclusive outlook. (4) Ensure alignment between methodology and research design to ascertain robust findings
Evaluasi Geometri Jalan Hauling Overburden Pit X untuk Menunjang Operasional yang Aman
Get PDFPada proses penambangan, khususnya penambangan Batubara kegiatan pemindahan material overburden dari Pit ke disposal menjadi salah satu proses utama. Dibutuhkan jalan penghubung sebagai jalur transportasi dari area penting di Kawasan pertambangan. Untuk mendukung hal itu, maka dibutuhkan jalan penghubung yang memiliki standar yang baik. Hal ini telah ditetapkan dalam KEPMEN ESDM No 1827 K/30/MEM/2018 dimana salah satunya berisi ketentuan terkait lebar jalan, grade, dan superelevasi. Standar tersebut selanjutnya diadopsi ke dalam standar prosedur bagi perusahaan pemilik izin usaha pertambangan terkait pengelolaan jalan tambang. Penelitian ini dilakukan dengan tujuan untuk mengidentifikasi segmen-segmen jalan yang kondisi aktualnya belum memenuhi standar Perusahaan.
Penelitian ini dilakukan mulai dari pengambilan data situasi tambang dengan metode fotogrametri menggunakan wahana pesawat udara tanpa awak (UAV), pengolahan data, hingga proses analisa data untuk mengidentifikasi geometri jalan yang belum masuk standar. Hasil yang diperoleh pada penelitian ini adalah terdapat 2% segmen jalan yang memiliki lebar jalan di bawah standar, 2% segmen jalan yang memiliki grade lebih tinggi dari standar, 2% segmen jalan yang memiliki cross fall di luar standar, dan 24% tikungan memiliki superelevasi di luar standar
Finding Random Integer Ideal Flow Network Signature Algorithms
Get PDFWe propose a Random Integer Ideal Flow Network (IFN) Signature Algorithm that generates integral flow assignments in strongly connected directed graphs under uncertainty. Existing models often fail to incorporate the inherent randomness and integer constraints present in systems like social networks. Unlike traditional approaches that enforce integrality through large scaling factors, our method distributes integer coefficients across multiple canonical cycles, ensuring precise balance where the sum of inflows exactly equals the sum of outflows at each node. We introduce two pseudocode algorithms that uphold flow conservation while maintaining network irreducibility, ensuring autonomy through strong connectivity. Theoretical contributions include the decomposition of IFNs into canonical cycles and the construction of network signatures, string-based representations that allow efficient performance evaluation through direct string manipulation. These signatures enable quick validation of key network properties such as total flow, balanced link flows, and structural irreducibility. To demonstrate practical applications, we apply our algorithm to modeling family power dynamics, illustrating how IFN can create minimal yet resilient networks that balance autonomy with accountability. This framework lays the foundation for future advancements in predictive modeling and network optimization. To ensure reproducibility, we provide an open-source Python implementation on GitHub