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All Journal Cannarium (Jurnal Ilmu-ilmu Pertanian) JURNAL KESEHATAN YAMASI MAKASSAR Venus: Jurnal Publikasi Rumpun Ilmu Teknik
ronal ronal
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Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Engineering Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Public Health Social Sciences

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PERCEPTION AND COMMUNITY BEHAVIOR IN MANAGEMENT WATERSHED MOLULU IN WANGONGIRA VILLAGE ronal ronal
Jurnal Cannarium Vol 15, No 2 (2017): Desember
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (17.36 KB)

Abstract

Daerah Aliran Sungai (DAS) merupakan satu kesatuan ekosistem yang unsur-unsur utamanya terdiri atas sumberdaya alam tanah, air dan vegetasi serta sumberdaya manusia sebagai pelaku pemanfaat sumberdaya alam tersebut.Pertambahan jumlah penduduk di Indonesia memperlihatkan kecenderungan yang meningkat dari tahun ke tahun.Sejalan dengan pertambahan penduduk, terjadi pula peningkatan kebutuhan lahan untuk memenuhi berbagai aktivitas pembangunan.
Studi Pengaruh Lama Penumpukan Batubara terhadap Kualitas Proximate Batubara di ROM Coal Stockpile pada PT Multi Harapan Utama Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur Ronal Ronal; Windhu Nugroho; Revia Oktaviani; Agus Winarno; Ardhan Ismail
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 6 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i6.1218

Abstract

During the coal stockpiling process, the quality of coal may increase or decrease due to direct exposure to open environmental conditions, which can lead to changes in its characteristics. The longer the coal is stored in an open area, the more it undergoes changes caused by rainfall, heat, and air exposure, resulting in an increase in moisture content and ash content, while the calorific value decreases. Therefore, this research was conducted to determine the optimal coal stockpiling duration at the ROM coal stockpile to ensure that the calorific value does not significantly decrease. Coal sampling was carried out every two days from the initial time of stockpiling. After a two-month stockpiling period, the final coal quality results showed a total moisture of 13.89% (ar), inherent moisture of 15.95% (ad), ash content of 4.59% (ad), volatile matter of 40.3% (ad), and fixed carbon of 39.16% (ad). Based on these results, it can be concluded that the recommended storage duration for MCV-HS type coal at the ROM coal stockpile is 154 days. The laboratory analysis results obtained during the research indicate that the longer the coal is stored, the higher the moisture content and ash content become, while the calorific value continues to decrease. This occurs due to water absorption and oxidation reactions that take place during the coal storage period in the ROM coal stockpile.
Aktivitas Antiinflamasi Topikal Sediaan Facewash Ekstrak Daun Pepaya (Carica papaya L.) pada Model Edema Terinduksi Karagenan pada Tikus Ananda Ramadani; Ronal Ronal
Jurnal Kesehatan Yamasi Makassar Vol 10 No 2 (2026): Jurnal Kesehatan
Publisher : Akademi Farmasi Yamasi Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59060/yytsw030

Abstract

Papaya leaves (Carica papaya L.) have long been used as a traditional medicine due to their bioactive compounds that have anti-inflammatory potential. Edema is a form of inflammatory response characterized by fluid accumulation in interstitial tissue due to increased vascular permeability. This study aims to evaluate the anti-edema effect of a facewash containing papaya leaf extract on the back skin of white rats (Rattus norvegicus). This study was a laboratory experimental study with a completely randomized design. Edema was induced using a 3% carrageenan suspension subcutaneously on the back skin of rats. Skinfold thickness was measured using a caliper before treatment (T₀) and after induction at certain time intervals. Rats were divided into several treatment groups given papaya leaf extract facewash with concentrations of 5%, 10%, and 20%. The results showed that the papaya leaf extract facewash had anti-edema activity with a decrease in skinfold thickness compared to the control. The 10% concentration showed the highest edema-reducing effect at 9%, followed by the 20% concentration at 5%, and the 5% concentration at 3%. Based on these results, it can be concluded that the papaya leaf extract face wash has potential as a topical anti-inflammatory agent, with an optimum concentration of 10%.
Co-Authors Agus Winarno Ananda Ramadani Ardhan Ismail Revia Oktaviani windhu Nugroho