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Akademický článek

Hierarchical clustering algorithm-dendogram using Euclidean and Manhattan distance

Autor: Mukhtar Mukhtar, Majid Khan Majahar Ali, Faula Arina, Agung Satrio Wicaksono, Aulia Ikhsan, Weksi Budiaji, Syarif Abdullah, Dinda Dwi Anugrah Pertiwi, Robby Zidny, Yuvita Oktarisa, Royan Habibie Sukarna

Publikováno v: Teknika, Vol 20, Iss 1, Pp 98-104 (2024)

This paper presents the outcomes of a research experiment on the drying process of seaweed. There are numerous approaches to clustering data, such as partitioning and the Hierarchical Clustering Algorithm (HCA). The HCA has been implemented in binary

Externí odkaz: https://doaj.org/article/8b2291fd18ec4850a5dcfd6f4cc042cf

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Akademický článek

Production and Characterization of Natural Acid-Base Indicator of Kendi Belang and Kendi Bukacu for School Chemistry Experiment

Autor: Wahyu Fatihah, Robby Zidny

Publikováno v: EduChemia, Vol 8, Iss 1, Pp 22-39 (2023)

The use of litmus paper seems wastefull and less environmentally friendly because it is only used once. For schlools that have difficulty getting litmus paper it can be a practicum obstacle to determine the acidity of the sample. In order to anticipa

Externí odkaz: https://doaj.org/article/e3ed23e5b72741d6908f5f62c496814f

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Akademický článek

Simple and Low-Cost Chemical Experiment Kits to Observe the Concept of Gas Laws

Autor: Robby Zidny, Geby Ayu Fadhilah, Githa Eryani Melda, Izmi Izzatus Sholihah, Nabila Lailil Widiastuti, Nina Haerunnisa, R. Ahmad Zaky El Islami

Publikováno v: Jurnal Penelitian dan Pembelajaran IPA, Vol 5, Iss 1, Pp 16-25 (2019)

This study aimed to develop a simple and low-cost chemical experiment kits to facilitate students in the school which has limited chemistry laboratory facilities. The topic of the experiment was the concepts of gas laws. The research was conducted in

Externí odkaz: https://doaj.org/article/128b3b33381a49088c3b78d23c94ffb3

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Akademický článek

Learning about Pesticide Use Adapted from Ethnoscience as a Contribution to Green and Sustainable Chemistry Education

Autor: Robby Zidny, Ingo Eilks

Publikováno v: Education Sciences, Vol 12, Iss 4, p 227 (2022)

This study shows how students can learn about green and sustainable chemistry by using the knowledge perspective of a local indigenous culture as a starting point. This learning approach encourages students to learn chemistry by connecting culture wi

Externí odkaz: https://doaj.org/article/e9253230d43945fb9cdbf4e1ad88dba5

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Akademický článek

PENERAPAN MODEL PEMBELAJARAN TEAMS GAMES TOURNAMENTS (TGT) PADA MATERI REDOKS UNTUK MENINGKATKAN MOTIVASI BELAJAR SISWA

Autor: R. Hiliasih, Evi Sapinatul Bahriah, Robby Zidny

Publikováno v: EduChemia, Vol 2, Iss 1, Pp 25-39 (2017)

Abstract: This study aims to increase students' motivation through cooperative learning model type Teams Games Tournament (TGT) on the redox material. The method used is classroom action research with two cycles. Samples were 10 grade students of SMA

Externí odkaz: https://doaj.org/article/5f138268e6dd4fce888c251e22e0413e

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Simple green organic chemistry experiments with the kitchen microwave for high school chemistry classrooms

Autor: Michael Linkwitz, Robby Zidny, Safwatun Nida, Lea Seeger, Nadja Belova, Ingo Eilks

Publikováno v: Chemistry Teacher International. 4:165-172

Microwave systems have been used in organic chemistry since the late 1990s for applications including Microwave-Assisted Organic Synthesis (MAOS). The main advantages of microwave-assisted procedures compared to traditional synthesis methods are the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33fd99aecbeba47f7a32516e924523f7
https://doi.org/10.1515/cti-2021-0034

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Akademický článek

Exploring Indigenous Science to Identify Contents and Contexts for Science Learning in Order to Promote Education for Sustainable Development

Autor: Robby Zidny, S Solfarina, Ratna Sari Siti Aisyah, Ingo Eilks

Publikováno v: Education Sciences, Vol 11, Iss 3, p 114 (2021)

Indigenous science is comprised of the science-related knowledge and associated practices of indigenous cultures. Indigenous science provides rich contexts that can contribute to understanding the relationship of sociocultural life and environmental

Externí odkaz: https://doaj.org/article/59416e6f16394111a26815ddc71de2f2

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