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All Journal MUHARRIK: JURNAL DAKWAH DAN SOSIAL Advance Sustainable Science, Engineering and Technology (ASSET)
Jonatan Lassa
Unknown Affiliation
Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Social Sciences Other

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An Experimental Study on Axial Stress-Strain Behaviour of FRP-Confined Square Lightweight Aggregate Concrete Columns Louk Fanggi, Butje Alfonsius; Budi Suswanto; Yuyun Tajunnisa; Jusuf Wilson Meynerd Rafael; Jonatan Lassa; Ahmad Basshofi Habieb
Advance Sustainable Science Engineering and Technology Vol. 7 No. 1 (2025): November-January
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i1.865

Abstract

This article presents the results of a research project that aimed to evaluate how the number of fiber-reinforced polymer (FRP) layers and the compressive strength of concrete affect the stress-strain behaviors of concrete columns produced from artificial lightweight aggregate with square cross-sectional shapes. Eighteen test specimens were manufactured and wrapped with glass fiber-reinforced polymer (GFRP) material. The specimens were later subjected to concentric compression for experimental evaluation. The experimental results suggest that GFRP efficiently confines square lightweight aggregate concrete columns. Furthermore, the test results indicate that adding FRP layers augments the ultimate stress and strain. Finally, the results suggest that an increase in the compressive strength of concrete leads to a corresponding increase in the ultimate stress. On the other hand, it has been observed that the ultimate strain decreases as compressive strength increases. The research findings reveal the behaviour of FRP-confined square lightweight aggregate concrete columns, which may also be utilized to formulate a new design-oriented model for these columns.
Intercultural Communication Among Togale Women in South Halmahera: Adaptation, Resistance, and Identity Negotiation Makbul A.H Din; Burhan; Syaifuddin; Jonatan Lassa
MUHARRIK: Jurnal Dakwah dan Sosial Vol. 9 No. 1 (2026): Muharrik: Jurnal Dakwah dan Sosial
Publisher : Fakultas Dakwah Institut Agama Islam Sunan Giri Ponorogo

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Abstract

This article reorganizes and strengthens the analysis of intercultural communication among Togale women in South Halmahera. The term Togale refers to a relational social category connecting Tobelo and Galela communities. It does not name a homogeneous ethnic block. The study examines how women negotiate gendered authority through adat, religion, kinship, livelihood, education, and post-conflict memory. The revised argument uses communication ethnography with a critical-postcolonial orientation. It also strengthens the discussion with recent literature on gender norms, women's empowerment, intercultural identity negotiation, indigenous relationality, religious communication, and peacebuilding. Field data came from interviews, participant observation, and documentation conducted in 2025. The analysis follows reflexive thematic analysis and uses Hymes's Speaking model, high-context communication, face negotiation theory, and communication accommodation theory. The findings show that Tobelo and Galela women share relational agency, but they use different symbolic resources. Tobelo women's public authority often grows through education, health work, church-related service, and family mediation. Galela women's public authority often grows through Islamic moral discourse, taklim participation, modesty norms, garden economy, and everyday da'wah. Adat practices such as salay, bobangu, sa'ali, and o dailako protect women's dignity while also regulating speech, mobility, and bodily conduct. The article develops the concept of indigenous gender negotiation to describe culturally grounded agency that works through tradition, religion, and relational ethics rather than outside them. This concept contributes to intercultural communication and multicultural da'wah studies by showing how women sustain moral identity, social coexistence, and practical authority in a post-conflict Muslim-Christian setting.  
Co-Authors Budi Suswanto Burhan Habieb, Ahmad Basshofi Jusuf Wilson Meynerd Rafael Louk Fanggi, Butje Alfonsius Makbul A.H Din Syaifuddin Yuyun Tajunnisa