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All Journal Jurnal Periodic Jurusan Kimia UNP Entalpi Pendidikan Kimia Journal of Natural Sciences CHEDS: Journal of Chemistry, Education, and Science International Journal of Public Health Excellence (IJPHE) MASALIQ: Jurnal Pendidikan dan Sains JRFES Jurnal Pengabdian Informatika (JUPITA) Asian Journal of Science, Technology, Engineering, and Art Jurnal Nasional Teknologi Informasi dan Aplikasinya
Putra, Ananda
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Komik kimia sebagai Alternatif Media Pembelajaran pada Materi Reaksi Reduksi dan Oksidasi Kelas X SMA Purnamasari, Sil; Putra, Ananda
Entalpi Pendidikan Kimia Vol 1, No 1 (2020)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/epk.v1i1.48

Abstract

Penggunaan media dalam proses pembelajaran akan mampu membantu menumbuhkan minat belajar peserta didik. Komik kimia dapat dijadikan sebagai salah satu inovasi alternatif media pembelajaran pada materi reaksi reduksi dan oksidasi. Penelitian ini bertujuan untuk mengembangan media pembelajaran dalam bentuk komik kimia pada materi reaksi reduksi dan oksidasi dengan menentukan tingkat validitas dan praktikalitas. Jenis penelitian yang adalah jenis penelitian Research and Development (R D) dengan menggunakan model pengembangan 4-D, yang terdiri dari 4 tahap: define, design, develop, dan disseminate. Pada tahap disseminate tidak dilakukan karena keterbatasan waktu dan biaya. Angket validasi dan praktikalitas digunakan sebagai instrumen penelitian untuk melihat kevalidan dan kepraktisan komik kimia. Validitas dilakukan dengan 6 validator dan praktikalitas dilakukan dengan 30 peserta didik serta 4 orang guru kimia. Teknik analisa data ini menggunakan formula Kappa Cohen’s. Hasil dari uji validasi komik kimia memperoleh moment kappa (k) sebesar 0,82 dengan memiliki kategori sangat tinggi. Sementara itu hasil dari uji praktikalitas komik kimia memperoleh moment kappa (k) sebesar 0.86 dengan memiliki kategori sangat tinggi . Diharapkan untuk kedepannya dapat membuat media pembelajaran berbentuk komik pada materi lainnya.
Vitamin K Supplementation for Reducing Cardiovascular Events in End-Stage Chronic Kidney Disease: A Systematic Review Liora, Kevin; Wiyono, Putri Dhiya Prameswari; Putra, Ananda; Alexander, Devin; Ramadhan, Afif; Oktavia, Anissya Rima; Larissa, Olivia; Nugroho, Fajar Prianto; Tjahyanto, Teddy
International Journal of Public Health Excellence (IJPHE) Vol. 4 No. 1 (2024): June-December
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijphe.v4i1.919

Abstract

This study was conducted to analyze the hSIL of Vitamin K Supplementation in Reducing Cardiovascular Events in End-Stage Chronic Kidney Disease: A Systematic Review. Cardiovascular disease (CVD) is the leading source of morbidity and mortality worldwide, and chronic kidney disease (CKD) is a major contributor to this matter. Kidney disease is estimated to affect over 850 million people worldwide. The present systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. We searched studies from electronic databases (PubMed Central, ScienceDirect, PLoS One, Google Scholar, Nature). Studies were considered eligible if they met the following criteria : (1) the study is a randomized controlled trial (RCT), (2) the study was published in the last 5 years (2018– 2022), (3) the study participants were adult patients with kidney disease from stage III to end-stage who were given vitamin K supplementation, (4) the study reported coronary artery calcium scores pre- and post- vitamin K supplementation, (5) the study was published in English. Risk of bias of each study was evaluated using Cochrane Risk of Bias (RoB) 2 tool. Data were descriptively examined and narratively reported. In conclusion, our results do not suggest that vitamin K supplementation may affect vascular calcification as measured by the CAC score. Up till now there is no treatment to reverse vascular calcification in ESKD patients. The current clinical practice should focus on prevention and retardation of its progression.
Pengujian Aproksimat Karbon Pelepah Kelapa Sawit (Elaeis guineensis Jacq) Farras, Muhammad Sadiq; Putra, Ananda
Periodic Vol 12, No 3 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v12i3.118338

Abstract

The carbon approximation test of palm frond has been successfully carried out. Carbon made at a temperature of 370 oC with variations in the length of time of 45, 60, 75 and 90 minutes was found to meet the test levels of SNI No. 06-3720-1995 and the best carbonization time for 75 minutes. Palm fronds are waste from palm plants that have no economic value and are even left to become garbage after being cut down. Therefore, proper handling is needed to manage palm fronds so that they are more useful in the environment and can have economic value later. That is to process palm fronds into activated carbon because they contain the main composition, namely cellulose, hemicellulose and lignin.
Pemanfaatan Karbon dari Bunga Cemara Laut (Casuarina equisetifolia) untuk Penjernihan Minyak Jelantah Rahmi, Maulidia Arsyta; Putra, Ananda; Sari, Trisna Kumala; Pernadi, Niza Lian; Istiqamah, Siti Sarah; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124261

Abstract

Used cooking oil is waste oil that has been used many times and is also known as used cooking oil which contains food residue and is a pollutant to the environment. This oil contains free fatty acids, carbonyl compounds, and peroxides. The content contained in used cooking oil can cause poisoning in humans and cause pollution to the environment. This study aims to clarify used cooking oil so that it can be reused. Carbon from sea pine flowers is used as a solution to clarify used cooking oil in this study. BCL carbon was obtained using the calcination method at various temperatures of 250oC, 300oC, 350oC, and 400oC. The resulting carbon is then subjected to a proximate test. Based on the results of the proximate test, the results obtained were in accordance with the SNI 06-3730-1995 standard with the optimum value obtained at 350oC calcination temperature. The clarification of used cooking oil is carried out by mixing used cooking oil and carbon as a result of calcination at 350ºC. Variations in the mass of carbon used are 1,3 and 5 grams. The results showed that the carbon of sea cypress flowers can be used as an absorbent for cleaning used cooking oil which can adsorb its fatty acid content. The optimum absorbent of this study was the 5g CBCL sample. This is evidenced by the results of the analysis that has been carried out with the lowest density value of 0.83 g/mL, the highest flow rate value of 4.312 mL/s and the lowest acid number value of 0.5 mg KOH/g.
Pengaruh Penjernihan Minyak Jelantah Menggunakan Nasi Terhadap Sifat Fisikokimia Minyak Sidiq, Aqil Marsya; Putra, Ananda; Amelia, Fitri; Pernadi, Niza Lian; Rizki, Suci Yulia; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124355

Abstract

The increased demand for cooking oil has led to a corresponding rise in its consumption. To address this situation, individuals often resort to reusing cooking oil, despite its unsuitability for consumption. The repeated use of cooking oil at high temperatures induces the hydrolysis of triglycerides into free fatty acids. Consequently, this research aims to refine the quality of used cooking oil through its purification using rice, rendering it suitable for reuse. Rice is rich in amylose and amylopectin, both of which feature -OH groups that can interact with -COOH groups present in free fatty acids within used cooking oil. In the process of used cooking oil purification, rice serves as an adsorbent. The findings of this study exhibit an improvement with an increase in the amount of rice used in the purification of cooking oil. Furthermore, the utilization of rice as an adsorbent during the cooking oil purification process leads to a reduction in density to 0.9454 g/mL, a decline in the acid number to 2.0797 mg KOH/g, an augmentation of flow rate to 0.3141 mL/s, and an elevation of the hoarding number to 77.1842 mg KOH/g within the used cooking oil.
Optimasi Adsorpsi Ion Tembaga (II) Menggunakan Silika Gel-GPTMS Termodifikasi Sulfonat Setiowati, Fiqih Sekar; Oktavia, Budhi; Sanjaya, Hary; Putra, Ananda
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124286

Abstract

Adsorption is a process of sorption onto a specific substance that occurs at the surface of a solid material due to intermolecular forces or the penetration of a substance into the solid material surface. Adsorption involves an adsorbent as the sorbent material and an adsorbate as the component being sorbed. Silica gel is a commonly employed adsorbent for the sorption of Cu2+ ions. It is utilized as an adsorbent due to the presence of silanol and siloxane groups, which serve as active sites that can be modified. The modification aims to enhance the adsorption capacity of silica gel for Cu2+ metal ions. In aquatic environments, Cu metal ions are highly toxic to living organisms, posing significant hazards. The modifying compound employed in this study is monosodium salt of 4 – amino – 5 – hydorxy – 2,7 – naphthalenedisulfonic acid. However, prior to the sulfonate compound modification, a linking compound, γ-glycidoxypropyltrimethoxysilane (GPTMS), is required. The purpose of this study was to determine the effect of variations in pH and contact time on the adsorption of Cu2+ metal ions on sulfonate modified silica gel – GPTMS. The modified silica gel was characterized using Fourier-transform infrared (FTIR). The adsorption of Cu2+ ions was characterized by specific surface area (SSA), and the optimal adsorption conditions were determined as pH 4 and  contact time of 60 minutes.
Optimasi Adsorpsi Ion Fe3+ Menggunakan Adsorben Silika Gel Sulfonat Chindikia, Ilmy; Oktavia, Budhi; Putra, Ananda; Nasra, Edi
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124483

Abstract

Adsorption is a process of absorption of adsorbate or substances absorbed by the surface of the adsorbent or absorbent substance which aims to reduce the Fe3+ cation in a solution. Research has been carried out on the adsorption of Fe3+ cations using silica sulfonate adsorbents by varying the pH and contact time to obtain optimum conditions during adsorptions. The adsorption process of Fe3+ cations used a sulfonate modified silica gel adsorbent has been carried out by varying the pH, namely 2; 3; 4; 5; 6; 7 and the maximum pH has been fixed at pH 6 with an abdorption capacity of 2,32732 mg/g with an absorpyion percentage of 78.79 %, contact time variations of 15; 30; 45; 60; 75 minutes have been obtained for optimum contact time at 45 minutes with an absorption capacity of 2,225756 mg/g and absorption percent of 77,33 %
Perancangan UI/UX Aplikasi SISAKTI-NG Layanan Sistem Informasi Point SKP Universitas Udayana Putra, Ananda; Santiyasa, I Wayan
Jurnal Nasional Teknologi Informasi dan Aplikasnya Vol 2 No 1 (2023): JNATIA Vol. 2, No. 1, November 2023
Publisher : Informatics Study Program, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

SISAKTI-NG is an information system for managing SKP (Satuan Kredit Partisipasi) at Udayana University. Currently, SISAKTI-NG is only available as a web-based application and does not have a mobile version. Based on a survey conducted among several Udayana University students, the author concluded that the website's interface of SISAKTI-NG is unattractive and dull. Therefore, the author is interested in designing the User Interface (UI) and User Experience (UX) for the SISAKTI-NG information system. Through this research, it is hoped that the SISAKTI-NG application can be improved in terms of its visual appearance to become more appealing and modern, meeting the needs and providing a comfortable user experience for Udayana University students. This research adopts prototyping and modeling methods. Based on the survey conducted, the calculation of the usability value of the UI/UX design of the SISAKTI-NG application which was tested using the SUS (System Usability Scale) method obtained an average SUS score of 77.25, NPS value with passive results, Acceptable, adjective value with results good, and the grade gets a B. This research has received positive reviews from SISAKTI-NG users when compared to the previous interface design. Keywords: System, Information, Udayana, University, UI/UX
DEVELOPMENT OF PALM SHELL CARBON FOR PYSICS EKSPREIMENT TOOL Z, Zulpadrianto; Y, Yohandri; Putra, Ananda
JRFES (Jurnal Riset Fisika Edukasi dan Sains) Vol 10, No 1 (2023): Jurnal Riset Fisika Edukasi dan Sains
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/jrfes.2023.v10i1.6780

Abstract

Research on science experiment practicum media has been carried out. This research is a laboratory experimental research. The aim of the research is to see the absorption of palm shell carbon against electromagnetic waves (RAM). RAM using palm shell carbon will be applied to anechoich chambers in science experiment practicums. Research procedure: carbonized palm shells were then activated using HCl. Activation was carried out with concentrations of 1, 2, 3, 4 and 5 Molar. In addition to the differences in the concentration of the activation substance, variations in the thickness of the print resulting from the activation were also carried out. The thickness of the printed material varies from 4mm, 6mm, 8mm and 10mm. The results of reflection loss measurements using a Vector network analyzer (VNA) at a frequency of 4GHz - 8GHz show differences for each concentration. Maximum reflection loss of palm shells using 1M HCl activation agent (-13.72 dB); 2M (-13.62dB); 3M (-13.35 dB); and 4M (-13.04dB) and 5M (-11.4 dB) concentrations. Variations in print thickness also have a significant effect on the absorber value of a material, the thicker the print results, the absorber value also increases. From the observations that have been made, the maximum absorber value is obtained when the thickness is 10mm at a concentration of 1M for the substance being tested.
Pengaruh Penambahan Zat Aditif Polyvinyl alcohol (PVA) Terhadap Kualitas Plastik Biodegradable Berbasis Selulosa Bakteri-Gliserol Dari Air Kelapa (Cocos nucifera) Reni, Fatina Rahmi Alamsyah; Putra, Ananda
Periodic Vol 13, No 3 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i3.125640

Abstract

Biodegradable plastics are plastics that can be decomposed or easily degraded by the activity of microorganisms. The aims of this study is to determine the effect of adding concentration variations of Polyvinyl alcohol additives to biodegradable plastics and determine the characteristics of the physical, mechanical and biodegradation of biodegradable plastics. This study used 3,5% glycerol as a plasticizer with PVA mass variations, namely 2 gr, 4 gr, 6 gr and 8 gr. The physical properties test results obtained, namely the percentage content and swelling test values, decreased as the mass of PVA was added. The optimum results of the characteristics of the mechanical properties of plastic are the addition of 8 gr PVA with a tensile strength value of 126.71 MPa, elongation of 4.19% and elasticity of 290.14 MPa. In biodegradation testing, tests were carried out on SB, SBG and SBG-PVA samples where with the addition of PVA the plastic degraded more slowly. Characteristics of functional groups using FTIR showed that no new functional groups were formed and the characteristics of plastic crystallinity using XRD for pure SB plastic were 63.68%, SBG was 67.94%, and SBG-PVA was 89.03%.
Co-Authors Afif Ramadhan, Afif Afifi, Rayhanil Aisyi, Rihadatul Alexander, Devin Alizar, Alizar Anjaly, Azzahra Nurfadillah Budhi Oktavia Chindikia, Ilmy Desy Kurniawati Edi Nasra Farras, Muhammad Sadiq Fitri Amelia Hary Sanjaya Humaira, Alifah I WAYAN SANTIYASA Ida Ayu Gde Suwiprabayanti Putra Istiqamah, Siti Sarah Izanel, Rezi Ananta Karsa, Dion Randi Khaliq, Feni Kurnia Larissa, Olivia Lestari, Kardina Liora, Kevin Miftahul Jannah Minda Azhar Nizar, Umar Kalmar Novel, Dheo Shalsabilla Novriansyah, Edo Nugroho, Fajar Prianto Oktavia, Anissya Rima Pernadi, Niza Lian Purnamasari, Sil Putri, Natasya Alya Rahadian Zainul Rahmi, Maulidia Arsyta Reni, Fatina Rahmi Alamsyah Riga, Riga Rizki, Suci Yulia Safhira, Elsa Sari, Putri Manda Sari, Trisna Kumala Setiowati, Fiqih Sekar Sidiq, Aqil Marsya Sukardi, Azaria Saiza Tjahyanto, Teddy Wiyono, Putri Dhiya Prameswari Wulandari, Yolanda Yohandri Yudelta, Oltry Z, Zulpadrianto