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All Journal Tekno - Pedagogi : Jurnal Teknologi Pendidikan JOURNAL ONLINE OF PHYSICS Jurnal Ilmiah Universitas Batanghari Jambi Indonesian Journal of Science and Mathematics Education Jurnal Pembangunan Berkelanjutan Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Kesmas Jambi Integrated Science Education Journal Analit: Analytical and Environmental Chemistry al Kimiya : Jurnal Ilmu Kimia dan Terapan Jurnal Teknologi dan Inovasi Industri Analit: Analytical And Environmental Chemistry
Damris Muhammad
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Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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INOVASI BATIK BERBASIS COLOR CHANGING-SUN ACTIVATED SEBAGAI UPAYA MELESTARIKAN WARISAN BUDAYA BATIK JAMBI MOTIF SUNGAI PENUH PADA KOMUNITAS BATIK SUNGAI PENUH Aina, Mia; Riski Gusti, Diah; Muhammad, Damris; Lestari, Intan; Asti Rahayu, Martina
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 4 (2024): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i4.1429-1433

Abstract

As a resource, the local cultural value of Batik Jambi with the Sungai Penuh motif is one of the driving forces in the improvement of the economy, capacity, expertise, and reputation of the region. In reality, the development of Batik Jambi with the Sungai Penuh motif is still relatively stagnant. The demand and interest in Batik Jambi with the Sungai Penuh motif have not seen significant growth from year to year. It is can be attributed to several issues, one of which is the lack of knowledge and skills regarding innovation in batik making, resulting in no distinguishing features compared to other batik motifs from the archipelago. As a solution to this problem, training and mentoring should be provided to members of the Batik community in Sungai Penuh City to innovate the Batik products they produce. The innovation introduced in this program involves the use of photochromic dyes. The basis of photochromic dyeing is the phenomenon of reversible color change induced by light in photochromic molecules, causing the molecules to exist in two different forms. These two different forms of molecules result in different colors. Practically observed, photochromic dyeing causes the applied batik products to change color when exposed to sunlight (color-changing - sun activated).
Persepsi Risiko Kontaminasi Merkuri pada Pekerja Penambangan Emas Skala Kecil (PESK) di Kecamatan Limun Agustin, Rista; Muhammad, Damris; Kalsum, Ummi
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 2 (2024): Juli
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i2.4901

Abstract

Small-scale Gold Mining (ASGM) in Limun Sub-district has caused a decline in the quality of Batang Limun River in the form of increasing mercury levels from 0.18 ppb to 0.30 ppb in 2015, which can have an impact on public health in the mining area. A risk perception assessment needs to be conducted to formulate effective risk communication. The Health Belief Model method was used to assess ASGM workers' risk perception of mercury contamination. This study was conducted with the aim of analyzing the risk perception of mercury contamination among ASGM workers in Limun District. The research was conducted from May to July 2023 in four villages of Kecamatan Limun consisting of Pulau Pandan, Muara Limun, Temenggung and Moenti Villages with a phenomenological design. The research informants consisted of 15 people who were determined by purposive sampling technique. In-depth interview guidelines were used to determine miners' risk perceptions. Data were analyzed using the Miles and Hubberman method through three stages, namely reduction, presentation and conclusion drawing, triangulation of sources and methods was also carried out to test the validity of the data. The results showed that miners considered mercury contamination to have no impact on their health. Based on the seriousness of the impact factor, they consider that there has never been a serious illness due to the use of mercury in the mining process. Based on the barriers and obstacles factor, the benefits of mercury heavy metal use prevention behavior are also not the focus of miners. Based on the cues to action factor, they believe that the way of using and managing heavy metal mercury as taught to people around miners is correct, safe and will not have a serious impact on health. The perception of gold miners in Limun Sub-district towards mercury contamination shows a negative perception. There is a need for socialization, promotion and regular monitoring of the impact of mercury use on ASGM workers.
A Mixture of Acacia Bark Extract (Acacia mangium Willd) and Potassium Iodide as A Corrosion Inhibitor in Sulfuric Acid Solution Gusti, Diah Riski; Gunawan, Anjelli Putri; Muhammad, Damris; Lestari, Intan
al Kimiya: Jurnal Ilmu Kimia dan Terapan Vol. 10 No. 2 (2023): al Kimiya: Jurnal Ilmu Kimia dan Terapan
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ak.v10i2.26187

Abstract

Corrosion is a decrease in the quality of a metal material caused by a reaction with the environment. Corrosion cannot be eliminated, but corrosion can be slowed down in several ways by adding corrosion inhibitors and synergistic effects. Acacia bark extract (Acacia mangium Willd) with the addition of 0.02 M KI has the potential as a corrosion inhibitor for steel because it contains secondary metabolites, so it can provide a synergistic effect and increase the value of inhibition efficiency on steel. This research aimed to analyze the effect of a mixture of acacia bark extracts (Acacia mangium Willd) with the addition of KI on inhibition efficiency corrosion of mild steel in sulfuric acid media. The method used in this study is the method of weight loss, adsorption isotherms, and thermodynamic parameters, which were carried out by varying the concentration of acacia bark extract and the immersion temperature of the steel. To strengthen the research results, characterization was carried out using FTIR and SEM. The results showed that the corrosion rate of mild steel immersed in 0.75 M H2SO4 corrosive medium with the addition of 0.02 M KI increased with increasing immersion temperature. These results are reinforced by the results of FTIR and SEM analysis which show that there is an interaction between mild steel and acacia bark extract (Acacia mangium Willd) and KI 0.02 M. Based on the thermodynamic parameters, the resulting values of ∆Hads, ∆Gads, and ∆Sads show that the adsorption process of acacia bark extract (Acacia mangium Willd) in corrosive medium H2SO4 0.75 M with the addition of 0.02 M KI took place spontaneously, showing the type of physical adsorption, adsorbed stable, the adsorption process was exothermic and the degree of irregularity in the adsorption process. The inhibition efficiency of acacia bark extract (Acacia mangium Willd) with the addition of 0.02 M KI was highest at 60 °C with an extract concentration of 2.5 g/L of 81%. The higher the immersion temperature, the greater the resulting synergistic effect
EFFECTS OF INITIAL SOIL CARBON AND METAL CONTENTS ON SORPTION OF DISSOLVED ORGANIC CARBON ON THE SOILS OF TROPICAL RAIN FOREST TRANSFORMATION SYSTEMS Ngatijo, Ngatijo; Muhammad, Damris; Saad, Asmadi; Bakar, Abu; Hamidah, Wanda
Analit : Analytical and Environmental Chemistry Vol. 6, No. 01 April (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i1.2021.p12-21

Abstract

Karbon organik terlarut (DOC) dalam tanah memainkan peran penting dalam distribusi nutrisi dan konsentrasinya dapat dipengaruhi oleh keberadaan partikel mineral tanah. Kandungan karbon tanah awal dapat mengurangi kapasitas tanah untuk menyerap DOC karena adanya tolakan muatan negatif. Penelitian ini mengkaji pengaruh kandungan karbon dan logam tanah awal terhadapa dsorpsi DOC yang  ditambahkan pada tanah hutan tropis melalui percobaan batch. Kandungan logam berat tanah (Al dan Fe), total karbon organik dan kandungan DOC tanah ditentukan. Untuk menentukan apakah dan bagaimana variasi kandungan karbon tanah mempengaruhi adsorpsi DOC, maka dua tanah dengan kandungan logam dan karbon yang berbeda (tanah permukaan dan bawah permukaan) dari dua sistem transformasi (hutan tropis sekunder dataran rendah dan perkebunan sawit masyarakat digunakan. Karbon organik terlarut diekstraksi dari permukaan tanah yang kaya organik dengan air dan dipekatkan ketingkat yang diperlukan dan digunakan dalam percobaan batch. Karbon organik terlarut berkorelasi negatif dengan kandungan logam tanah terutama pada sub permukaan tanah. Dengan kandungan organik karbon tinggi korelasinya tidak signifikan. Ini mungkin menjelaskan adanya tolakan DOC yang membawa perubahan negatif oleh partikel tanah kaya organik.http://dx.doi.org/10.23960/aec.v6.i1.2021.p12-21 
Co-Authors Abbasiah, Abbasiah Abda Abda Abu Bakar Abu Bakar Agustin, Rista Ashruri Ashruri, Ashruri Asmadi Saad Asmiati Asmiati Asrial Berlina Berlina Diah Riski Gusti Frastica Deswardani Gunawan, Anjelli Putri Hamidah, Wanda Hellinawati Hellinawati Ilham Falani Intan Lestari Jodion Siburian Kamid, Kamid Lusmeilia Afriani M. Haviz Martina Asti Rahayu Mia Aina Mujiyono Wiryotinoyo Ngatijo Ngatijo Ngatijo Ngatijo Nizlel Huda Nur, Areva Fatiha Pakpahan, Nicolaus Poni Dwi Manda Rachmawati Rachmawati Saad, Asmadi Ummi Kalsum Vabylita, Maria Fransisca Wanda Hamidah