Asep Kadarohman
Department of Chemistry Education, Faculty of Mathematics and Sciences Education, Indonesia University of Education, Bandung, Jl. Dr. Setiabudhi No. 229 Bandung 40154 West Java

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Dancing with Falsification: The Dynamic of Chemistry Atomistic Theories Across Centuries Fibonacci, Anita; Kadarohman, Asep; Nahadi, Nahadi; Anwar, Sjaepul; Hernani, Hernani
Journal of Educational Chemistry (JEC) Vol 5, No 2 (2023)
Publisher : Chemistry Education Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jec.2023.5.2.19054

Abstract

This research aimed to explore the contribution of the falsification process to the progress of science in the field of atomic theory. The analysis focused on the history of atomic development and how this theory underwent a process of falsification. This research was qualitative research using a literature study with a narrative review method. The results showed that the development of a theory, including the theory of atoms, has undergone many improvements. Falsification is an essential aspect of scientific progress, especially in atomic theory, involving testing the theory through experimentation and observation to determine accuracy. In the development of atomic theory, falsification played a key role, as in Dalton's atomic theory. Although revolutionary, subsequent experiments revealed subatomic particles, resulting in the falsification of Dalton's ideas and the emergence of a more complex understanding of atomic structure. The evolution of atomic theory shows that scientific knowledge is dynamic, continuing to develop through falsification. New evidence continues to refine ideas, ensuring scientific knowledge accurately reflects the natural world. The scientific method emphasizes openness to falsification, stating that theories must be testable and can be replaced when significant evidence refutes the theory. This openness is the basis for scientific progress and a deeper understanding of the universe.
Ecoenzyme Production, Characteristics and Applications: A Review Gumilar, Gun Gun; Kadarohman, Asep; Nahadi, Nahadi
Jurnal Kartika Kimia Vol 6 No 1 (2023): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v6i1.186

Abstract

The reuse and management of organic waste can reduce significantly the impact on the environment and human health, as well as improve economic value through developing value-added products of certain applications. One of the solutions to cut down is solid organic waste such as fruit and vegetable waste into ecoenzymes via fermentation. This current review discusses the production, characterization, and application of ecoenzymes. The data was gathered from international and national indexed journals and proceedings. Ecoenzyme is produced via fermentation from fruit/vegetable waste, sugar, and water with a ratio of 1:3:10. In general, the modification made is changing the type of sugar and the type of fruit/vegetable waste used as raw material. The characterization mainly focuses on evaluating the content and activity of the enzymes. Wide range of applications of ecoenzyme found as liquid fertilizers, antimicrobial agents, wastewater treatment processes, and sludge treatment processes.
A Systematic Review: Chitosan/ Poly (vinyl alcohol) based Hydrogel composites for Drug Delivery Material Annifah, Riri Uswatun; Kadarohman, Asep; Khoerunnisa, Fitri; Nurhayati, Mita; Hendrawan, Hendrawan; Anwar, Budiman
Jurnal Kartika Kimia Vol 7 No 1 (2024): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v7i1.254

Abstract

This review article aims to systematically describe the synthesis methods, characterization, and performances of CS/PVA based hydrogel composites as drug delivery materials. The literature review was conducted through ScienceDirect and Google Scholar, where the article selection is based on Scopus index in the Q1 and Q2 categories within the past 5 years. The synthesis of CS/PVA hydrogel was performed using various methods, including crosslinking, freeze-thaw, and sol-gel. The synthesis methods of hydrogel composites included crosslinking, freeze-thaw, and sol-gel. Characterization of hydrogel composites was conducted using FTIR spectroscopy, SEM, and swelling ratio measurement. CS/PVA-based hydrogel composites as drug delivery materials have been successfully synthesized using crosslinker, freeze-thaw and sol-gel methods. FTIR spectra indicated that drug was successfully loaded into CS/PVA based hydrogel composite matrix, involving the hydrogen bonding as predominant mechanism of interaction between precursors and drug functionalities. The best swelling capacity was obtained in the CS/PVA/Tetracycline based hydrogel composites, up to 949%. The SEM images indicated the homogeneous morphological structure and surface of hydrogel composites. The CS/PVA/Tetracycline based hydrogel composites exhibited the largest cumulative drug release of 99.44%. The drugs loaded CS/PVA hydrogel composites are promising as a drug delivery material.
Optimalisasi Potensi Pendidikan Melalui Analisis SWOT dari Perspektif Guru dan Peserta Didik Rahmawati, Rahmawati; Widhia Nugraha, Qatrunnada; Agustina, Rina; Anjani, Rini; Riska, Riska; Kadarohman, Asep
KENDURI : Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 4 No. 1 (2024): April
Publisher : Yayasan Darussalam Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62159/kenduri.v4i1.1252

Abstract

This study aims to optimize educational potential through a SWOT analysis from the perspective of teachers and students. This study uses a development research design. The subjects were teachers and students from one of the schools in Bandung City. The results of the SWOT analysis based on teacher responses obtained data that the coordinate position is in quadrant I, namely teachers can utilize strengths to obtain opportunities. Meanwhile, the results of the SWOT based on student responses obtained data that the coordinate position is in quadrant II, namely creating strategies using strengths to overcome threats. Based on this, it was found that the school where the study was conducted has various strengths, such as adequate facilities, good communication between the school and parents, and good academic and non-academic achievements. However, it has weaknesses including suboptimal use of existing facilities and mismatched learning strategies with student needs. In this case, there are opportunities to improve the quality of the school, including scholarship programs, collaboration with research institutions, and increased cooperation with the school environment.
Workshop on Making Teaching Materials and Lesson Plan Based on Potential and Local Wisdom for Science Teachers [Workshop Pembuatan Bahan Ajar dan RPP Berbasis Potensi dan Kearifan Lokal bagi Guru IPA] Misbah, Misbah; Kadarohman, Asep; Sinaga, Parlindungan; Yuliani, Galuh; Anwar, Sjaeful; Rosbiono, Momo; Winarno, Nanang; Prasetyorini, Prasetyorini; Heliawati, Leny; Unwakoly, Semuel; Utami, Indri Sari; Salam, Abduh; Kerans, Geterudis; Karimah, Fani Ulya; Warliyah, Heli
Jurnal Pengabdian Isola Vol 2, No 1 (2023): JPI: VOLUME 2, ISSUE 1, 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jpi.v2i1.57605

Abstract

Integrasi potensi dan kearifan lokal ke dalam pembelajaran IPA membuat pembelajaran lebih bermakna serta dapat menanamkan nilai-nilai kearifan lokal. Namun, faktanya masih banyak guru yang mengalami kesulitan dalam mengintegrasikan potensi dan kearifan lokal, sehingga perlu dilakukan kegiatan Pengabdian kepada Masyarakat (PkM) yang bertujuan untuk meningkatkan pemahaman guru dalam mengimplementasikan potensi dan kearifan lokal ke dalam pembelajaran IPA. Metode dalam kegiatan PkM ini adalah workshop yang dilaksanakan secara online melalui Zoom meeting pada tanggal 1216 Juli 2022. Kegiatan diikuti oleh 78 guru IPA di seluruh Indonesia. Data pemahaman guru diperoleh melalui angket yang dibagikan sebelum dan sesudah workshop dilaksanakan. Secara umum pemahaman peserta workshop mengalami peningkatan antara sebelum dan sesudah workshop diselenggarakan. Selain itu evaluasi penyelenggaraan PkM yang diberikan oleh peserta secara umum berada pada kategori baik dan sangat baik. Dengan demikian disimpulkan bahwa melalui kegiatan workshop ini dapat meningkatkan pemahaman guru IPA dalam membuat bahan ajar berbasis potensi dan kearifan lokal.The integration of local potential and wisdom into science learning makes learning more meaningful and can instil local wisdom values. However, the fact is that there are still many teachers who experience difficulties in integrating local potential and wisdom, so it is necessary to carry out community service activities which aim to increase teacher understanding in implementing local potential and wisdom into science learning. The method in this community service activity is a workshop held online via Zoom meeting on 12 16 July 2022. 78 science teachers throughout Indonesia attended the activity. Teacher understanding data was obtained through questionnaires which were distributed before and after the workshop was held. In general, workshop participants' understanding increased between before and after the workshop was held. In addition, the participants' evaluation of the community service implementation was generally in the good and very good categories. Thus it was concluded that this workshop activity could increase science teachers' understanding in making teaching materials based on local potential and wisdom.
Workshop and Deepening of Carbon Chemistry Materials Using Problem-Based Learning to Improve Literacy and Critical Thinking of High School Chemistry Teacher at MGMP Pangandaran [Workshop dan Pendalaman Materi Kimia Karbon Melalui Metode Problem-Based Learning Untuk Meningkatkan Literasi dan Berpikir Kritis Guru Kimia Sekolah Menengah Atas di MGMP Kimia Wilayah Pangandaran] Mustapha, Iqbal; Pratiwi, Amelinda; Kadarohman, Asep; Supriyanti, F.M Titin; Sardjono, Ratnaningsih Eko; Sopandi, Wahyu; Aisyah, Siti; Wahyu, Wawan
Jurnal Pengabdian Isola Vol 1, No 2 (2022): JPI: VOLUME 1, ISSUE 2, 2022
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jpi.v1i2.52438

Abstract

Peningkatan kualitas sumber daya manusia merupakan komitmen bersama yang harus dilakukan oleh berbagai elemen baik pemerintah maupun masyarakat. Meningkatkan kualitas sumber daya manusia berarti membekalinya dengan berbagai keterampilan dan kompetensi. Kemampuan tersebut dapat dimiliki melalui berbagai kegiatan baik kegiatan belajar maupun berlatih yang didukung dengan berbagai elemen. Keterbatasan guru terhadap lierasi dan juga kemampuan berfikir kritis, terkadang menjadikan pembelajaran kimia lebih bersifat teoritis, dimana hal ini diduga menjadi salah satu penyebab  rendahnya minat dan motivasi siswa untuk mempelajari kimia. Pengabdian Pada Masyarakat (P2M) tentang workshop pendalaman materi kimia karbon melalui Probleme based learning (PBL) dilakukan secara daring maupun luring dengan scenario setara 32 jp, yaitu 8 jp luring dan 24 jp daring. Adapun wilayah sasaran kegiatan P2M adalah MGMP kimia wilayah Pangandaran bekerjasama dengan guru-guru yang tergabung dalam MGMP Kabupaten Pangandaran, Kabupaten Ciamis, dan Kota Banjar. Adapun hasil yang diperoleh dari kegiatan P2M ini adalah analisis kurikulum dari beberapa sub-topik kimia karbon antara lain senyawa hidrokarbon, makromolekul senyawa organik, benzena, dan asam karboksilat. Selain analisis kurikulum peserta juga melakukan analisis konsepsi, analisis miskonsepsi, serta strategi pemblejaran menggunakan model PBL. Pada kegiatan ini guru-guru kimia kedepannya sangat membutuhkan workshop yang bertemakan pembelajaran berbasis PBL.Improving the quality of human resources is a joint commitment that must be carried out by various elements, both government and society. Improving the quality of human resources means equipping them with various skills and competencies. These abilities can be possessed through various activities, both learning and practicing activities that are supported by various elements. The teacher's limitations on literacy and critical thinking skills sometimes make chemistry learning more theoretical, which is thought to be one of the causes of the low interest and motivation of students to study chemistry. Community Service (P2M) regarding workshops on deepening carbon chemistry through problem based learning (PBL) conducted online and offline with a scenario equivalent to 32 jp, namely 8 jp offline and 24 jp online. The target area for P2M activities is the Pangandaran chemistry MGMP in collaboration with teachers who are members of the Pangandaran Regency, Ciamis Regency, and Banjar City MGMP. The results obtained from this P2M activity are curriculum analysis of several sub-topics of carbon chemistry, including hydrocarbon compounds, macromolecules of organic compounds, benzene, and carboxylic acids. In addition to curriculum analysis, the participants also carried out conceptual analysis, misconception analysis, and learning strategies using the PBL model. In this activity, future chemistry teachers really need workshops with the theme of PBL-based learning.
A Study of Students' Difficulties and Conceptual Understanding of the Qualitative and Quantitative Analysis of Organic Compound Elements Khoirunnisa, Fitriah; Hendrawan; Kadarohman, Asep; Anwar, Sjaeful; Pratiwi, Amelinda
Jurnal Pendidikan Kimia Indonesia Vol. 8 No. 2 (2024)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpki.v8i2.80589

Abstract

The study examines the learning difficulties and understanding of concepts faced by 28 chemistry students in organic compound element analysis courses using the RADEC learning model. The results showed a moderate increase in understanding. Still, several factors contributed to the low understanding, such as 28% of students reporting difficulty with Kjeldahl material, 24% with Dumas topics, 5% with Lassaigne destruction topics, 9% with Kjeldahl and Dumas topics, and 5% with digestion, distillation, and titration. Additionally, 24% of students did not understand the meaning of the questions, the lecture material's delivery, and the writing of reaction equations. Lack of preparation, such as reading before lectures, also contributed to low understanding.
Immersing Digital Technology in Empowering University Students with Future Skills: Digital Fabrication Laboratory Workshop Fibonacci, Anita; Kadarohman, Asep; Hernani, Hernani; Rahmawati, Triannisa; Hana, Muhammad Nurul; Nais, Miarti Khikmatun; Razani, Ahmad Nafran; Haunan, Vito Winata; Roslan, Roslinawati Mohd
Phenomenon : Jurnal Pendidikan MIPA Vol. 14 No. 1 (2024): Jurnal Pendidikan MIPA
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/phen.2024.14.1.23435

Abstract

This study aimed to explore the perception of students in higher education regarding the role of digital fabrication laboratories in equipping students with the skills they need in the future. This study was conducted using a descriptive approach. The study was carried out through a DFL workshop involving students’ representation from the Department of Student Association from a state university in the West Java with a total population of 106 students. A purposive sampling technique was used to choose the participants, with total sample was 12 students. Data collection was carried out through survey and interviews to measure students' perspectives on the opportunities to use Digital Fabrication Laboratory in developing future skills in a workshop scheme. Quantitative data analysis was carried out using descriptive statistics using mean scores and percentages, while for the results of the interviews, using a thematic analysis. Study showed that according to participants, the Digital Fabrication Laboratory facility was able to develop several skills, namely creativity (14%), computational thinking (7%), soft skills (7%), teamwork (7%), technological literacy (22 %), entrepreneurship (14%) and digital design (29%). The results also showed that the digital fabrication laboratory has a role and benefits for students' future careers, with a mean score of 4.44 (very good). The results of the thematic analysis showed that participant perspective the advantages of DFL workshop can develop their skill namely entrepreneurship, souvenir entrepreneurship, business in Clothes Printing Properties, Gundam entrepreneurship, Support in entrepreneurship Courses, Teaching Media Supplier, so it can be concluded that students feel that the DFL workshop is useful for students' future careers.
PRE-SERVICE CHEMISTRY TEACHERS’ KNOWLEDGE, USAGE AND PERCEPTIONS OF ARTIFICIAL INTELLIGENCE IN EDUCATION -, Harianti; Kadarohman, Asep; Anwar, Sjaeful
JCER (Journal of Chemistry Education Research) Vol. 9 No. 1 (2025): Volume 9 No. 1 June 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v9n1.p5-12

Abstract

This study investigates pre-service chemistry teachers' knowledge, use, and perceptions of AI technology integration in education. Using a survey design, data were collected from pre-service chemistry teachers enrolled in a professional teacher education program. The findings reveal varying levels of AI knowledge, with a majority having sufficient understanding but 20% demonstrating low knowledge. Social media emerged as the primary source of AI information. Participants generally felt confident using AI tools, though usage frequency varied. The study underscores the need for comprehensive AI education in teacher training programs to enhance future educators' AI literacy and integration skills. The results highlight the importance of ethical considerations and balanced AI usage to foster critical and creative thinking in educational practices. Recommendations include integrating practical AI applications, ethical considerations, and strategies for critical engagement with AI into teacher education programs to prepare pre-service teachers for future technological advancements in education.
Review on Synthesis, Properties, and Performances of Polymer/ Metal Organic Framework (MOF) composites membranes for water filtration application Ashfiya, Putri Sayyida; Khoerunnisa, Fitri; Nurhayati, Mita; Kadarohman, Asep; Sanjaya, Eli Hendrik; Hendrawan, Hendrawan; Sonjaya, Yaya; Aziz, Hafiz Aji; Annifah, Riri Uswatun; Iasya, Yurin Karunia Apsha Albaina
Jurnal Kartika Kimia Vol 8 No 1 (2025): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v8i1.871

Abstract

Mixed matrix membranes (MMMs) have gained considerable attention as a cutting-edge filtration technology, leveraging the combined advantages of polymer and inorganic fillers. Metal-organic frameworks (MOFs), as a nanoporous materials, are regarded as highly effective fillers in MMM, significantly enhancing molecular separation efficiency. This article provides a comprehensive review of the synthesis, properties, and performance of polymer/MOFs-based MMMs. A comprehensive literature search was conducted using ScienceDirect and Google Scholar with keywords such as metal-organic framework, MMMs, polymers, filler, and membrane filtration. Polymer/MOFs-based MMMs are synthesized using techniques including in situ and layer-by-layer assembly methods. The MMMs exhibit porosity distribution ranges from57 to 78.3%, contact angle ranges from 45° to 75.27°. The MMMs have also demonstrated exceptional performance in water permeability and bovine serum albumin (BSA)/salts rejection reached up to 94.03 L/m2.h and 99.8%, respectively. These finding highlight the significant potential of polymer/MOFs-based MMMs for advanced water filtration application.