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Mahpudin
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Materials Science & Nanotechnology Mathematics Public Health Social Sciences Transportation Other

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KUALITAS ARANG ENAM JENIS KAYU ASAL JAWA BARAT SEBAGAI PRODUK DESTILASI KERING Novitri Hastuti; Gustan Pari; Dadang Setiawan; Mahpudin; Saepuloh
Jurnal Penelitian Hasil Hutan Vol. 33 No. 4 (2015): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.4.337-346

Abstract

Six wood species from West Java which are ki hiur (Castanopsis acuminatissima A.DC.), tunggeureuk (Castanopsis tunggurut), huru pedes (Cinnamomum iners Reinw.Ex Bl.), huru koja (Litsea angulata Bl.), ki kanteh (Ficus nervosa Heyne) and kelapa ciung (Horsfieldia glabra Warb) have been distillated by dry distillation at temperature 450°C-500°C for five hours in the retort distillation. Distillates from the dry distillation in form of charcoal, tar and liquid are calculated. The results exhibited charcoal quality of six woods meet the standards of Indonesia for charcoal and charcoal briquettes with calorific values ranging from 6743-6795 cal/g, fixed carbon ranging from 79.42 % - 82.37 %. Charcoal yield ranging from 27.43 % -33.55 % . Pearson correlation analysis on the lignin content and woodgravity to charcoal calorific value indicates that the lignin content has a significant correlation to the calorific value of charcoal.
Understanding the “Empty Box” Phenomenon in Indonesian Electoral Politics: A Study of Simultaneous Regional Elections Mahpudin; Wawan
JIAPI: Jurnal Ilmu Administrasi Dan Pemerintahan Indonesia Vol. 6 No. 2 (2025): December
Publisher : Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jiapi.v6i2.9441

Abstract

This article examines the dilemma surrounding the use of “empty columns” in Indonesia’s local elections (Pilkada). Empty columns were introduced during the 2017 simultaneous regional elections in response to the rising number of uncontested races, where only a single candidate pair appeared on the ballot. Such races have increased in each electoral cycle, with 25 single-candidate contests occurring in 2020. Although empty columns were designed to preserve democratic contestation by ensuring voters have at least two options, the regulatory and political framework governing them remains fragile. This study aims to explain why empty columns have become a dilemma within contemporary electoral political discourse. This research employs a qualitative methodology with an exploratory analytical approach, drawing on empirical patterns identified through an extensive review of relevant literature. The findings indicate that the empty column represents a fundamentally contradictory mechanism: while it is formally intended to sustain competition, it lacks the political infrastructure necessary for effective contestation and thus functions as a nominal rather than substantive electoral alternative. As a result, empty columns are structurally disadvantaged and struggle to counterbalance the dominance of single-candidate pairs, ultimately undermining their intended role in strengthening democratic practice.
Co-Authors Alif Nur, Faturrobani Amalia, Dita Budi Febriyanto D Wardani, Galuh Dadang Setiawan Dinda Septiana Putri Fahira, Farda Gilang, Cahyadi Gustan Pari Hasan Imel Amelia Putri M. Nabil Ijlal Mahpudin Mahpudin Mazmuria, Yolanda Nicholas Matthew Novitri Hastuti Nurhidayati, Anindhita Rival Mubarok Saepuloh Sahliah Dita Arzikah Siti Aldian Nurjanah Wawan Yuyu Yuliati