Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Akta Kimia Indonesia Jurnal Rekayasa Sipil Mamangan Social Science Journal Society
Afrizal Afrizal
Andalas University
Humanities Chemistry Civil Engineering, Building, Construction & Architecture Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Synthesis of Polystyrene Sulfonate and Its Characterization as a Polymer Electrolyte Membrane Emil Salim; Afrizal Afrizal; Zilfadli Zilfadli
Akta Kimia Indonesia Vol 6, No 2 (2021)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25493736.v6i2.10916

Abstract

This study aims to synthesize polystyrene sulfonate (PSS) from polystyrene (PS) isolated from waste styrofoam. Sulfonation reaction of polystyrene was conducted using acetyl sulfonate as sulfonating agents with variation times and temperatures. The sulfonated products were characterized using FT-IR spectrophotometer, degree of sulfonation, cation exchange capacity, water uptake and thermal stability. The FTIR spectrums show vibration of O-H streching at wave number 3300-3400 cm-1, S=O streching at the wave number 1050-1200 cm-1 which indicates the presence of sulfonate groups. Sulfonation reaction at 40oC for 2 hours (SPS-40-2) gives the highest degree of sulfonation, cation exchange capacity, water uptake with values 1,960%, 0.1880 meq/gr, 9.04% respectively. Thermal gravimetry analysis shows that polystyrene sulfonate has better thermal stability than polystyrene.
Komunikasi Antarpribadi pada Pembebasan Lahan Proyek Padang Bypass Rama Andria; Afrizal Afrizal; Azwar Azwar
Jurnal Rekayasa Sipil (JRS-Unand) Vol 14, No 2 (2018)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.851 KB) | DOI: 10.25077/jrs.14.2.95-106.2018

Abstract

Proyek Peningkatan Kapasitas Jalan Padang Bypass yang dimulai tahun 2014 mendapat resistensi dari warga yang menguasai area yang akan dijadikan objek pelebaran jalan. Dalam upaya menyelesaikan masalah tersebut, Pemerintah Kota Padang membentuk Tim Penyelesaian Masalah Lahan Pembangunan Jalur II Jalan Padang ByPass. Penelitian kualitatif ini bertujuan untuk mengetahui jenis komunikasi yang digunakan oleh Tim serta tingkat keberhasilannya. Dari hasil wawancara mendalam kepada informan pengamat dan informan pelaku diketahui bahwa Tim melakukan pendekatan tidak hanya secara formal melalui sosialisasi dan musyawarah, namun juga secara informal melalui pendekatan komunikasi antarpribadi berupa kunjungan ke rumah warga dan pendekatan penyelesaian kasus per kasus. Meskipun proses komunikasi tersebut diganggu oleh persepsi-persepsi negatif berupa kebohongan, kecurigaan, kesimpangsiuran informasi, ketidakpatuhan terhadap konsensus, serta adanya pengaruh dari kelompok kecil dan pemaksaan kehendak, namun secara umum komunikasi antarpribadi yang dilaksanakan oleh Pemerintah Kota Padang dapat mencapai hasil yang baik. Hal ini terlihat dari percepatan menurunnya jumlah lahan yang bermasalah setelah terbentuknya Tim. Namun demikian disadari bahwa penerapan teori-teori komunikasi antarpribadi seperti teori akomodasi komunikasi dan teori pertukaran sosial juga dapat memperlambat proses negosiasi jika tidak dapat dijalankan secara efektif.
Kelapa Sawit dan Bencana Alam: Makna Sosiologis Diskursus Dampak Ekologis Ekspansi Sawit Siska Adhariani; Afrizal Afrizal
Society Vol 9 No 1 (2021): Society
Publisher : Laboratorium Rekayasa Sosial, Jurusan Sosiologi, FISIP Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/society.v9i1.286

Abstract

Since its inception and until now, oil palm plantations have been controversial in Indonesia. Although there is ample evidence presented by proponents proving that oil palm expansion has made an important contribution to the Indonesian economy, from an ecological point of view, it is claimed by critics to have negative impacts on the environment, one of which is the cause of natural disasters. The link between oil palm expansion and natural disasters is debated between critics and supporters of oil palm expansion. This study examines the theme of criticism of oil palm expansion as a cause of natural disasters and counter-discourse of supporting oil palm expansion. By using literature study methods and an environmental, sociological perspective, it is found that the discourse on the impact of oil palm plantation expansion shows a contradiction between the views of the New Ecological Paradigm (Paradigma Ekologi Baru or PEB) and the Human Exemptionalism Paradigm (Paradigma Keterpisahan Manusia or HEP). The Indonesian government is building a counter-discourse of ecological modernization to maintain and develop oil palm plantations expansion.
The Instrumental Rationality of Indigenous Leaders in Proposing Customary Forests within the Other Land Use Areas in Jangkat District, Merangin Regency, Jambi Faruq El Pikaso; Afrizal Afrizal; Lucky Zamzami; Fikri El Gibran; Randrianiaina Jaona Eddie
Jurnal Mamangan Vol 15, No 1 (2026): Jurnal Ilmu Sosial Mamangan Accredited 2 (SK Dirjen Ristek Dikti No. 0173/C3/DT
Publisher : LPPM Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/mamangan.v15i1.11064

Abstract

Following Constitutional Court Decision No. 35/PUU-X/2012, the status of Customary Forests shifted from state forests to forests owned by indigenous people (Masyarakat Hukum Adat). This significant transformation in forest governance has triggered a surge in proposals to designate Customary Forests, which interestingly now extend to Other Land Use Areas (Areal Penggunaan Lain/APL), or non-forest plantation lands. Although legally permissible, the phenomenon of proposing Customary Forests on APL is unique in that indigenous people continue to propose them in areas they have owned since their inception. Therefore, this study analyzes why indigenous leaders propose the Customary Forest designation on APL in Jangkat District, Merangin Regency, Jambi.  The theory used in this study is Weber’s instrumental rational action. This research employs a qualitative approach using data collection techniques such as literature study, in-depth interviews and FGDs with indigenous leaders and village officials. The results indicate that the primary rationality underlying the proposal is instrumental. Specifically, customary leaders are seeking formal recognition to access government support and assistance in protecting vital water sources that sustain community livelihoods and strengthen the certainty and security of customary communities' rights.
Co-Authors Azwar, Azwar Faruq El Pikaso Fikri El Gibran Lucky Zamzami Rama Andria Randrianiaina Jaona Eddie Salim, Emil Siska Adhariani Zilfa Zilfa