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All Journal International Journal of Evaluation and Research in Education (IJERE) International Journal of Renewable Energy Development Jurnal Pendidikan IPA Indonesia Jurnal Inovasi Pendidikan Kimia Sainteknol : Jurnal Sains dan Teknologi JURNAL EVALUASI PENDIDIKAN Jurnal Zeolit Indonesia Chemistry in Education Indonesian Journal of Chemical Science Innovative Journal of Curriculum and Educational Technology IJIET (International Journal of Indonesian Education and Teaching) Unnes Science Education Journal Indonesian Journal of Physics and Nuclear Applications AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Journal of Innovative Science Education Unnes Journal of Mathematics Education Research Journal of Primary Education International Journal of Active Learning Physics Education Research Journal Tarjih Tropical Livestock Journal International Journal of Scientific Multidisciplinary Research (IJSMR) Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology

Edy Cahyono

Unknown Affiliation

Author-ID : 245576

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Veterinary

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PENGARUH PEMBELAJARAN CREATESEM BERVISI SETS TERHADAP PENCAPAIAN KOMPETENSI BUFFER DAN HIDROLISIS GARAM Maesyaroh, Ida; Binadj, Achmad; Cahyono, Edy
Chemistry in Education Vol 2 No 1 (2013): Terbit bulan April 2013
Publisher : Universitas Negeri Semarang

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

The main problem in learning today is the low of students’ understanding. It is caused by students that are not actively in learning process. On School Based Curriculum, the learning process requires students to take apart in active teaching learning. The aim of this study is to know whether using CREATESEM SETS visionary give positive effect on competence achievement related to the buffer solution and the salt hydrolysis. The research was conducted in SMA Negeri 2 Pati. Purposive sampling was used in this study and class XI-6 as an experimental class got treatment CREATESEM SETS visionary, while class XI-7 as control class got a different treatment, treated by using SETS visionary of learning. The design of this study was control group pretest posttest. The data were collected by using test method, documentation, observation, and questionnaires. The results showed a classical completeness of experimental class was 88%, meanwhile for control class was 56%. The mean value of the psychomotor aspects of the experimental class was 85% better than control class that was 82%.The mean value of the affective aspects of the experimental class students was 85% better than control class that was 83%. So, using CREATESEM SETS visionary in teaching learning had positive impact 31% on achievement of students’ competence related to the buffer solution and the salt hydrolysis

PENGGUNAAN BUKU SAKU PRAKTIKUM KIMIA UNTUK MENINGKATKAN KERJA ILMIAH DAN KETERAMPILAN GENERIK pakiz, Rudiyanto; Cahyono, Edy; Subroto, Tjahyo
Chemistry in Education Vol 2 No 1 (2013): Terbit bulan April 2013
Publisher : Universitas Negeri Semarang

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The previous study that was conducted absolutely shown that the students of SMAN 1 Wonosari grade XI IPA have less practical ability related to the laboratorial aspects, so that material studies are surely needed in order to ease the students in practical work. The purpose of this research is to measure the influence of the usage of Buku Saku Praktikum Kimia as material studies toward scientific inquiry and generic skill in acid-basic chapter/study. The design of this research is using pre-test - post-test group. The method of the aggregation of data is using the documentation, test, observation, and questionnaire method. Based on the Normalized gain experiment , the result of logical inferention of generic skill for experiment group is 51,29% and the control group is 42,37%, generic skill’s direct observation of experiment group is 84,73% for the practical work I and 87,68% for the practical work II, control group is 74,97% for the practical work I and 80,32% for the practical work II and the scientific inquiry’s result for the experiment group I is 86,82 for the practical work I and 85,32 for the practical work II. Control group is 81,80 for the practical work I and 81,23 for the practical work II. The conclusions of this study is buku saku praktikum kimia work to develop scientific and generic skills of students in practical solution of the acid-base.

STEM literacy in growing vocational school student HOTS in science learning: A meta-analysis Qori Agussuryani; Sudarmin Sudarmin; Woro Sumarni; Edy Cahyono; Ellianawati Ellianawati
International Journal of Evaluation and Research in Education (IJERE) Vol 11, No 1: March 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v11i1.21647

The low higher order thinking skills (HOTS) of vocational students is shown from the approaches and models used in learning that are not specific, learning activities are limited to methods that have not been able to grow HOTS. One of the approaches offered in science, technology, engineering, and mathematics (STEM). The research objective was to analyze STEM in growing HOTS through literature studies. The data collection method used a STEM systematic review from 2016-2020 based on the indexed findings of Google Scholar and Scopus (Database: Elsevier, Scopus, and Science Direct). Qualitative descriptive data analysis technique was employed on inductive deductive patterns. Based on data analysis, there are findings of 18 Google Scholar indexed articles and 20 Scopus indexed articles according to the inclusion criteria. The results showed that: i) STEM integration patterns in growing HOTS obtained six STEM literacy patterns of 28% on Google Scholar and four STEM integration patterns by 65% in Scopus; ii) The trend of STEM and HOTS research from 2016-2020 has increased the most in 2020 by 56% on Google Scholar and 40% on Scopus. Most of the methods used are research and development (R&D) with data analysis techniques in the form of t-test on Google Scholar data and survey methods with descriptive analysis on Scopus data. The difference in the publication trend on the integration pattern, the number of samples used is greater in the Scopus data. The method used is more dominant in the survey than R&D, but whatever the research design in STEM literacy is, in principle, it can empower HOTS to increase learning activities.

Catalytic Activity of Zr4+/ZA on The Isomerization Reaction of α-Pinene and It’s Reusability Test Nico Aditya Wijaya; Nanik Wijayati; Edy Cahyono
Indonesian Journal of Physics and Nuclear Applications Vol 1 No 3 (2016)
Publisher : Fakultas Sains dan Matematika Universitas Kristen Satya Wacana

Production of turpentine oil from pine resin until December 2014th was reported to reaching 17.150 tones with the wide of pine forest is 876.992,66 acres. The main component of turpentine oil is α-pinena which isomer products have high value for industrial raw materials. Effects concentration of impregnation and reusability test a best catalyst on α-pinene isomerization reaction using catalysts Zr4+/natural zeolite in which modificated with different Zr4+ concentration were analyzed. Characterization of catalyst included X-ray Fluoroscent for detection of Zr concentration in natural zeolites, Surface Area Analyzer for determine catalyst porosity using BET method, and determination of acidity using vapor ammonia and pyridine base adsorption gravimetric method. Isomerization process used a batch reactor with variation in the concentrations of Zr4+ impregnations 10, 15, and 20 w/w as well as reusability test used best catalyst. The highest conversion of α-pinene used Zr4+/ZA 10% catalyst was 3,89% so as Zr4+/ZA 10% catalyst is best catalyst than other catalysts whereas highest conversion of α-pinene used Zr4+/ZA 10% regeneration catalyst was 4,26%. The product is produced from isomerization reaction of α-pinene used Zr4+/ZA all variations catalysts was camphene and limonene.

Development of Augmented Reality-Based Learning Media on Concept of Hydrocarbon to Improve Multi-representation Ability Vita Fitria Ningrum; Woro Sumarni; Edy Cahyono
Jurnal Penelitian Pendidikan IPA Vol. 7 No. SpecialIssue (2021): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v7iSpecialIssue.1038

This study aims to design and develop learning media based on augmented reality on hydrocarbon material and its validity to determine the media's feasibility and increase students' multi-representation ability. This research is a type of development research using Design Research and Development (R&D). The product validity test phase was carried out by two material experts and three media experts. In addition, testing was carried out on the responses of the participating students. The implementation stage of learning was carried out by class X TKJ 2 SMK Gondang Pekalongan with a total of 32 students. The data analysis technique used a questionnaire instrument and the technical descriptive statistical analysis. The results of this study are: (1) the development of augmented reality-based learning media on hydrocarbon material in the form of an android application consisting of five main menus, namely basic competencies and indicators, materials, AR camera, practice questions, and the identity of the researcher, as well as seven molecular cards of the structure chemical compound molecules; (2) validity assessment by material experts with an average score of 85% in the "very valid" category and the validity assessment by media experts with an average score of 94% in the "very valid" category; (3) the feasibility test results for using media in the implementation of learning obtained an average student response score of 78%, with the "feasible" category used as learning media. The increase in multi-representation abilities is shown by increasing student learning outcomes using multi-representation questions, including macroscopic, submicroscopic, and symbolic levels. The macroscopic level increased by 27.50%, the submicroscopic increased by 36.70%, and the symbolic level increased by 33.30%. The results of this study indicate that augmented reality-based learning media on hydrocarbons is very suitable for use in chemistry learning and has been proven to increase students' multi-representation abilities

The research Pengaruh Pupuk Organik Cair dari Kulit Kacang Tanah dan Kulit Pisang terhadap Pertumbuhan Vegetatif Bayam Rusdiyana Rusdiyana; Dyah Rini Indriyanti; Putut Marwoto; Retno Sri Iswari; Edy Cahyono
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1331

The liquid organic fertilizer (LOF) formula from peanut and banana peels. This research aims to: (1). Analyze the effect of LOF provision from peanut and banana peels on the vegetative growth of spinach; (2). Analyze the best LOF dose for vegetative growth of spinach, and (3). Analyze the effect differences between NPK fertilizer and LOF from peanut and banana peels toward the vegetative growth of spinach. The researchers promoted this study from November to December 2020 in a greenhouse in Banjarbaru. The researchers applied RAL design by providing fertilizer since the spinaches were 10, 17, and 24 days. The vegetative growth parameters were: Plant height, number of leaves, leaf width, and the leave color. The result proved that: (1). LOF provisions from peanut and banana peels significantly influenced the height and leave numbers of spinach; (2). The best dose for LOF provision is 50ml of peanut peel LOF + 50ml of banana peel LOF to get excellent height and leave numbers of the spinach; (3). The growth of the spinach, in terms of height, numbers of leaves, and leaf width during NPK fertilizer provision, was in line with the provisions of banana and peanut peel LOF.

CYCLISATION-ACETYLATION KINETIC OF (R)-(+)-CITRONELLAL BY Zn2+–NATURAL ZEOLITE AS SOLID SOLVENT CATALYST Edy Cahyono; Muchalal Muchalal; Triyono Triyono; Harno Dwi Pranowo
Indonesian Journal of Chemistry Vol 10, No 2 (2010)
Publisher : Universitas Gadjah Mada

Kinetic in cyclisation-acetylation of (R)-(+)-citronellal with acetic anhydride was investigated over Zn2+-Natural zeolite (Zn2+-Natzeo) as a catalyst. (R)-(+)-citronellal has been isolated from citronella oil by fractional distillation under reducing pressure. Enantioselective capillary GC on a Supelco β-DEX 225 column has been used for analysis the enantiomers ratio of citronellal. Catalyst Zn2+-Natzeo has prepared through acid activation of natural zeolite from Malang using HF 1% and HCl 6 M, followed by ion-exchange with 3 M NH4Cl and calcination at 450 °C for 1 h under nitrogen to obtained H-natural zeolite (H-Natzeo). H-Natzeo was modified to Zn2+-Natzeo by ion exchange with 0.1 M ZnCl2. Cyclisation-acetylation reaction was carried out by heating (R)-(+)-citronellal (CIT), acetic anhydride (AA), and 1 g catalyst in glass batch reactor with vigorous stirring at 80 °C. Molar ratio CIT/AA that used, i.e. 0.25; 0.5; 1.0; 1.2 and 1.5. As the reaction proceeded, 1 mL sample was taken off at 10; 20; 30; 60; 120; 180 min and extracted using n-hexane for every molar ratio. Structure analysis of product was conducted by GC-MS. Kinetic of the cyclisation-acetylation reaction was analyzed according to the Langmuir-Hinshelwood mechanism. Increasing molar ratio of CIT/AA will decrease the isopulegyl acetate (IPA) and neo-isopulegyl acetate (NIPA) formation. Rate constant of cyclisation-acetylation reaction catalyzed by Zn2+-Natzeo was 30.964-47.619 mmol(min. g cat)-1 at 80 °C, 30 min and the ratio adsorption equilibrium constant KCIT/KAA was 7.09.

MISCONCEPTION REMEDIATION OF ATOMIC ORBITAL, MOLECULAR ORBITAL, AND HIBRIDIZIATION CONCEPTS BY COMPUTER ASISSTED INSTRUCTION WITH ANIMATION AND SIMULATION MODEL Sri Mursiti; Dewi Selvia Fardhyanti; Edy Cahyono; Sudarmin Sudarmin
Indonesian Journal of Chemistry Vol 6, No 1 (2006)
Publisher : Universitas Gadjah Mada

The research of Computer Asissted Instruction with animation and simulation was used to misconception remediation of atomic orbital, molecular orbital, and hibridiziation concepts. The applicated instruction model was focused on concept approach with macromedia flash player and power point programme. The subject of this research were the 2nd semestre students of Chemistry Department. The data were collected by using of true-false pre-test and post- test followed by the reason of its. The analysis reveals that the Computer Asissted Instruction with animation and simulation model increased the understanding of atomic orbital, molecular orbital, and hibridiziation concepts or remediation of concepts missconception, shown by the significant score gained between before and after the implementation of Computer Asissted Instruction with animation and simulation model. The instruction model developed the students's generic skills too.

Distribution of the Fraunhofer Diffraction Intensity by a Rectangular Slit Using a Razor Blade Eli Trisnowati; Putut Marwoto; Retno Sri Iswari; Edy Cahyono
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 3 (2022): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i3.1284

This research was conducted by making a rectangular slit using a razor blade as a narrow gap in the Fraunhofer diffraction experiment. The intensity distribution measurement on the resulting diffraction pattern uses a voltage divider circuit. This circuit takes advantage of the nature of the LDR, which changes resistance when exposed to light. Experiments show that a diffraction pattern screen when a 560 nm coherent light passes through a narrow rectangular slit made of razor cut. We measured the narrow gap using a tracker application with the resulting gap size (0.3564 x 0.4677) mm. The ratio of the intensity distribution of the x-axis bright pattern on the Fraunhofer diffraction by a rectangular slit with slit size height x width = (0.4677 x 0.3564) mm from b = -5p to 5p (maximum 4, maximum 3, maximum 2, maximum 1, central maximum, maximum 1, maximum 2, maximum 3, maximum 4) is 0.000873; 0.000763; 0.005395; 0.020583; 1; 0.039658; 0.008088; 0.002554; 0.001218. The ratio of the intensity distribution of the y-axis bright pattern on the Fraunhofer diffraction by a rectangular slit with slit size height x width = (0.4677 x 0.3564) mm from g = -5p to 5p (maximum 4, maximum 3, maximum 2, maximum 1, central maximum, maximum 1, maximum 2, maximum 3, maximum 4) is 0.001890; 0.001469; 0.002447; 0.040516; 1; 0.037141; 0.006482; 0.001690; 0.000440. This study indicates that diffraction experiments and the measurement of the diffraction pattern’s intensity can be carried out with simple materials and equipment and can be used in the correct experiment.

P PENGAMATAN KONVEKSI RAYLEIGH BENARD SEBAGAI REPRESENTASI PEMBELAJARAN FENOMENA ALAM MELALUI GERAK MOLEKUL AIR M Hidayatur Rohman; Putut Marwoto; Retno Sri Iswari; Edy Cahyono
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 3 (2022): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i3.1323

Research has been carried out with a device to observe the phenomenon of Rayleigh Benard convection, made of a glass box bounded by a lower plate and an upper plate. The bottom plate is hotter than the top plate which functions to heat the horizontal fluid layer from below. This study aims to observe the phenomenon of water molecule movement. The observation medium was water mixed with teak sawdust as a representation of water particles with an average density of mean=0.99 g/cm3. The variation of water thickness (d) used 5 cm and 6 cm with variations in temperature difference (DT) with an average increase of 50°C. Data was collected with a cellphone camera and run with Windows Movie Maker software which has a time accuracy of up to 0.001 seconds. It was observed that an increase in the temperature difference (DT) between the two plates resulted in an increase in the velocity of motion of water particles in convection which is depicted by a v-DT diagram. Due to the difference in temperature (DT) also results in the movement patterns of water molecules, namely laminar and turbulent. The turbulent phase with the Rayleigh number value R~107, indicated that the flow of water particles is getting faster, the direction of the flow of the particles starts to become irregular and sometimes signs of a water vortex appear. At different fluid immersion results in the start of a turbulent phase. The turbulent phase for d=5cm is observed at DT~30°C, and d=6cm at DT~20°C. Furthermore, this RBC phenomenon is used as a representation of learning natural phenomena in air fluids, namely whirlwinds as an event due to differences in temperature and pressure of a fluid

Co-Authors - Jumaeri A.A. Ketut Agung Cahyawan W Achmad Binadj, Achmad Aden Dhana Rizkita Aditya Marianti Agustina, Diah Tria Ahmad Minanur Rohim Alighiri, Dante Aminuyati Ani Rusilowati Ani Rusiolwati Anisa, Rizqi Annisa, Riska Nurfirda Ardi Hermawan, Ardi Ardi Soesilo Wibowo Arfilia Wijayanti Arif Fradina, Rizkyana Arisna Rahmawati, Arisna Arofah, Barorotul Ulfah Asmaul Husna Asna, Ainuz Zahroh Asrizal Wahdan Wilsa Astuti, Fiki Kusuma Avelisia Kusumawati, Avelisia Aziz Rizqi Pratama, Muhammad Azizah, Yuni Nur Bambang Subali Budi Naini Mindyarto, Budi Naini Budiarti, Santi Cepi Kurniawan Dewi Selvia Fardhyanti Dian Kumala Sari, Dian Kumala Didi Nur Jamaludin Dirmanto, Agus Doni Setiawan Duong, Nguyen Thuy Dwi Novieta, Intan Dyah Rini Indriyanti E. Suwarsi Eko Budi Susatyo Eli Trisnowati Ellianawati, Ellianawati Endang Susilaningsih Ersanghono Kusuma Ersanghono Kusumo, Ersanghono Evalisa Apriliani, Evalisa F Widhi Mahatmanti Faiz Mudhofir Fianti Fianti, Fianti Fitriani Fitriani Fourniyati, Indang Retno Gema Arief Wicaksana, Gema Arief Hanifa, Deska Aisyia Harjito Harjito - Harjono Harjono Harno Dwi Pranowo Harno Dwi Pranowo Harno Dwi Pranowo Henny Ayu Pramesti, Henny Ayu Ida Maesyaroh, Ida Indah Urwatin Wusqo Indri Saputri, Indri Islamiyah, Anisalia Nur Julianto Pratomo, Julianto Kasmadi Imam Supardi Kasmui Kasmui Kusoro Siadi Laela Rahma Agustin Latifah - M Hidayatur Rohman M. Muchalal Madayanti Khomsyatun, Madayanti Marfina, Apriza Mariana, Elyta Mariana, Elyta Marliani, Lia Marliani Lia Merlianita, Ditha Mubarak, Syarifatul Muchalal Muchalal Muchalal Muchalal Murbangun Nuswowati Murtiyanti Setyaningrum, Murtiyanti Nanik Wijayati Natanael Natanael, Natanael Niasri, Niasri Nico Aditya Wijaya Noer Hayati Lestari Nofal, Agus Noor Malikhah Muazizah, Noor Malikhah Nuni Widiarti Nur Amalia Afiyanti, Nur Amalia Nurcahyo, Bowo Nurcahyo, Bowo Nurkaromah Dwidayati, Nurkaromah Nurul Hanifah P Parmin Pangesti, Rizki Dwi Pangesti, Rizki Dwi Parmin - Parmin Parmin Priyosetyoko Priyosetyoko, Priyosetyoko Putut Marwoto Qori Agussuryani Rahayu, Endah Fitriani Rahayu, Noviana Sri Ratnawati Kusuma Ningsih Retno Sri Iswari Ribka Wahyuningrum, Ribka Riyanti . Riyanti Riyanti Riyanti Riyanti Riyanti Riyanti Rizalina, Hartias Rizalina, Hartias Rizka Rida Utami Rizkita, Aden Dhana Rochmad - Rofiq, Eka Ahmad Rokhmaniyah Rokhmaniyah, Rokhmaniyah Romawati, Carolina Romawati, Carolina Rudiyanto pakiz, Rudiyanto Rusdiyana Rusdiyana S Mursiti S Sulhadi S. B. Waluya, S. B. Saiful Ridlo Saptorini Saptorini, Saptorini Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Septiyaningsih, Tri Sigit Priatmoko Sigit Saptono Siti Fathonah Siti Fatimah Soeprodjo - Solly Aryza Sri Haryani Sri Haryani Sri Haryani Sri Jumini Sri Kadarwati Sri Mursiti Sri Mursiti Sri Nurhayati Sri Wahyuni Suci Fajariah, Eka Sudarmin Sudarmin Sudarmin Sudarmin Sudarmin Sudarmin Sudarmin Sudarmin Sulistiyanti, Irma Supartono - Supranowo Supranowo Sutikno Madnasri Syafaatunniyah, Syafaatunniyah Syafaatunniyah, Syafaatunniyah Syafi'i, Imam Syaifuddin Syaifuddin Tjahyo Subroto, Tjahyo Triastuti Sulistyaningsih Triyono Triyono Triyono Triyono Triyono Triyono Ulung Aggraito, Yustinus Umi Rahmawati,, Umi Uswatun Kasanah, Uswatun Van, Ngoc Chau Vita Fitria Ningrum Vita Fitria Ningrum Widayani, Anis Widayani, Anis Wiyanto - Wiyanto Wiyanto Woro Sumarni Yuliana Putri Yuliyati, Tri Budi Yunita, Wulansari Zaenuri Mastur

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