Garuda - Garba Rujukan Digital

Design Application GM3-Bacterial© Application Based on Android Smartphone for Bacterial Identification Megahati S, Ruth Rize Paas; Azhar
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 1 No. 1 (2022): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Digital technology continues to develop along with the times, such as Android smartphones. Android smartphones are a new innovation in the identification of bacteria carried out in the Microbiology and Biotechnology Laboratory. Identification of bacteria in the Microbiology and Biotechnology laboratory is usually done manually using various substances, is expensive, has to do a lot of tests, and has to grow bacteria in vitro in a growth medium. In addition, the inaccuracy of the results of bacterial identification if the bacteria tested show unique and different biochemical characteristics and do not match the characteristics of the genus of the species being tested. Human error also occurs during the identification of bacteria and it takes a long time to find out the results of bacterial identification. The specific objective of the research is to produce an innovative GM3-Bacterial© application based on Android smartphones for bacterial identification. The research method is the GM3-bacterial© application initial display design and design prototype aplikasi GM3-bacterial©. The results showed that the design of the GM3-bacterial© application prototype design application had been successfully carried out. The GM3-Bacterial© application based on Android smartphones has been successfully designed using the Software suite for building GM3-bacterial© applications. The GM3-Bacterial© application is based on an Android smartphone for the identification of bacteria such as the recognition of morphology, biochemical properties, and types of bacteria.

Android-Based Mobile Learning in Genetics Subject Megahati S, Ruth Rize Paas; Azhar; Febri Yanti
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 1 No. 2 (2022): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

The use of ICT-based learning media can make learning more effective. One of the ICT-based learning media that can be used as a learning medium that is operated on a smartphone device is mobile learning (m-learning). The research aims to review related research to produce new findings. M-learning is developed in a multimedia format that provides text, images, audio, and video. The ease of internet access through cellular phone devices such as Blackberries, iPhones, PDAs, and smartphones makes it easier to make learning applications using an Android-based system. The results of developing learning media based on Android mobile smartphones show that students’ motivation and learning outcomes increase. Learning media based on an Android mobile smartphone is produced as a supplement to the genetics course. Learning media based on an Android mobile smartphone has a positive impact and a breakthrough from ICT advances to improve the quality of learning.

Improving Biology Learning Outcomes through Guided Inquiry with Video Media Megahati S, Ruth Rize Paas
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 1 No. 4 (2022): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/jdlde.v1i4.28

Lack of student participation during discussions causes students to become inactive when learning, and difficulty in answering teacher questions because the information the teacher conveys is not understood by students. This results in student scores still below the KKM in Global warming is one of them. The minimum completeness criteria set at SMPN 2 Lembah Gumanti is 65. The purpose of the study was to determine the effect of the application of the guided inquiry model with video media on the biology learning outcomes of seventh-grade students of SMPN 2 Lembah Gumanti, Solok Regency. The type of research is an experiment with a research design Randomized Control Group Posttest Only Design. The use of t-test is used in the affective domain as a data analysis technique and the t-test was used in the cognitive and psychomotor domains for data analysis techniques. 1 the experimental class has an average score of 62.38 with a predicate of C (Enough) while the control class has an average value of 53.22 with a predicate of D (Less). Hypothesis test 0.05 obtained t-count 2.90 > t-table 1.67, meaning that H1 is accepted. The guided inquiry learning model accompanied by video media can improve the biology learning outcomes of class VII students of SMPN 2 Lembah Gumanti, Solok Regency.

Student Process Skills on Temperature and Heat Materials Azhar, Azhar; Megahati S, Ruth Rize Paas
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 1 No. 4 (2022): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/jdlde.v1i4.29

This study aims to describe and determine the differences in students' physics process skills through the LKS based on Natural Exploration (JAS) on temperature and heat at SMAN 2 XIII Koto Kampar. The research design used in this study was an intact-group comparison design. The data collection technique in this study was giving tests to the experimental and control classes, after learning through LKS based on Exploring the Surroundings. The average absorption power of the experimental class is 80% in the good category, while the control class is 74% in the good category. Based on students' absorption, it can be said that learning in the experimental and control classes is effective. Classical student learning completeness in the experimental class is 84% and in the control class is 62.5% otherwise incomplete. The classical completeness of the process skill indicator in the experimental class is 100% and in the control class is 75%. In classical completeness, the indicator of process skills in the experimental class is declared complete and the control class is declared incomplete. After the t-test was conducted, it was found that there was a significant difference in physics process skills through LKS based on Exploring the Surroundings by using ordinary LKS.

Developing Handouts Accompanied by Practice Questions on Inheritance Material for SMP/MTs Megahati S, Ruth Rize Paas; Elfina, Yuci
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 2 No. 5 (2023): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/jdlde.v2i5.197

To make it easier to present the material, one of the materials that can be developed is a handout. This research aims to produce handouts accompanied by practice questions on inheritance material for class IX SMP/MTs. This research was conducted at MTsN Lembah Gumanti in March of the 2014/2015 academic year. This research includes development research, namely the development of handouts accompanied by practice questions with modified 4-D models consisting of the define, design, and developing stages. The data is in the form of primary data, consisting of scores from filling out validity and practicality questionnaires by teachers and students. The data were analyzed using descriptive analysis in the form of percentages. The handouts produced were categorized as very valid, both in the didactic, construction, and technical categories, with a handout validity value of 89.10%. The resulting handout was categorized as very practical according to the teacher with a score of 89.30%, and according to students with a score of 89.6%, it was categorized as very practical. So, it can be concluded that this research has produced handouts accompanied by practice questions that are very valid and very practical so they are suitable for use in the learning process.

Integration of Sustainability Literacy in Digital Learning in Chemistry Education: A review Refmidawati; Megahati S, Ruth Rize Paas
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 2 No. 5 (2023): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/jdlde.v2i5.256

Giving students the knowledge and skills they need to support sustainable development is one way that sustainability literacy is being promoted. To enhance the material on sustainability literacy, this article maps perspectives on sustainability literacy and the relationship between the Education for Sustainable Development (ESD) idea and chemistry education. The study's objectives are to: (1) map out the body of research on sustainability literacy; and (2) examine how the ESD idea relates to chemistry education to promote sustainability literacy. According to Kitchenham, the approach is Review. 31 international journals published between 2012 and 2023 were the sources of the papers used; they were retrieved from the Google Scholar database and Scopus-indexed. The study's findings demonstrate the widespread applicability of sustainability literacy across a range of scientific domains and application foci. Many well-researched ESD implementation approaches in chemistry education might serve as a guide when creating ESD in the classroom. An overview of the content of sustainability literacy that is pertinent to chemistry education as well as how it may be applied to different learning domains is given in this paper. It also offers perspectives for scientists, chemical instructors, and ESD developers.

Lactobacillus Plantarum for Human Life: Molecular Approach Megahati S, Ruth Rize Paas
RADINKA JOURNAL OF SCIENCE AND SYSTEMATIC LITERATURE REVIEW Vol. 3 No. 2 (2025): Radinka Journal of Science and Systematic Literature Review
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/rjslr.v3i2.576

Lactobacillus plantarum (L. plantarum) increases short-chain fatty acids (SCFA) levels in the intestines, which acts as a signal to activate the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway. This activation is crucial for reducing oxidative stress and maintaining mitochondrial balance. This study aims to review several research papers that explore and highlight how L. plantarum makes SCFAs to activate Nrf2, specifically the strategies it uses to combat free radicals. The systematic review technique systematically investigates, assesses, analyzes, and interprets all study findings relevant to the research topic. We sourced articles from three databases: Scopus, Web of Science, and Google Scholar, covering the period from 2014 to 2024. The study found that SCFAs made by L. plantarum are important signals that trigger the Nrf2 signaling pathway, which helps protect cells from damage caused by oxidation and inflammation. L. plantarum is a beneficial probiotic that uses SCFAs to trigger the Nrf2 pathway, providing strong protection against free radicals and supporting various health benefits.

Hepatoprotective Activity Test of Longan Leaf Methanol Extract (Euphoria Longan (L.) Steud.) Against Paracetamol-Induced SGOT and SGPT Liver Levels of Male White Rats Megahati S, Ruth Rize Paas; Mitra FEBTA
RADINKA JOURNAL OF HEALTH SCIENCE Vol. 1 No. 3 (2024): Radinka Journal of Health Science (RJHS)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/rjhs.v1i3.217

Euphoria longan (L.) Steud. or longan leaves, is a plant that contains secondary metabolites, flavonoids which have the potential as a source of antioxidants that can prevent liver damage due to the use of toxic doses of paracetamol. This study aims to determine the presence of hepatoprotective activity of methanol extract of longan leaves in reducing levels of SGPT and SGOT in the livers of paracetamol-induced male white rats. This study used 24 male white rats which were divided into 6 treatment groups, namely group I as normal control, group II as negative control who were given paracetamol, group III as positive control who were given Legalon ® dose of 272.15 mg/kg, groups IV, V, and VI were given longan leaf methanol extract at doses of 386.125 mg/kg, 772.25 mg/kg, and 1544.5 mg/kg. On day 7, all groups except the normal group were induced by paracetamol at a dose of 1000 mg/kg BW. Data on SGPT and SGOT levels were analyzed using a one-way ANOVA test and followed by a Tukey test. The results of the statistical analysis obtained showed that the methanol extract of longan leaves in the dose 3 group was not significantly different from the positive control (p>0.05), which means that dose 3 had the best hepatoprotective activity in reducing SGPT and SGOT levels in the liver of paracetamol-induced rats compared to with doses 1 and 2. Giving dose III (1544.5 mg/kg BW) has the best hepatoprotective activity because it is comparable to the positive control group given Legalon® at a dose of 272.15 mg/kg BW.

Bacteria Contaminants in Meatballs Sold in the Market Padang City Raya Sutra, Bunga; Gustina Indriati; Megahati S, Ruth Rize Paas
RADINKA JOURNAL OF SCIENCE AND SYSTEMATIC LITERATURE REVIEW Vol. 2 No. 1 (2024): Radinka Journal of Science and Systematic Literature Review (RJSLR)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/rjslr.v2i1.239

Meatballs are a processed meat product that has high nutrition. The maximum shelf life for meatballs made from meat is 1 day (12 hours). Storing meat foods at inappropriate temperatures, such as room temperature, greatly facilitates the growth of microbes. The marketplace for meatballs in traditional markets in the city of Padang is still sold on the streets at open-air temperatures without using sufficient refrigeration. The possibility of contamination with microorganisms is very large. This research aims to determine the suitability and quality of meatballs sold at Pasar Raya Padang City by examining the Total Plate Count (TPC) and identifying the types of bacteria that contaminate meatballs sold at Pasar Raya Padang City. The research results showed that the amount of microbial contamination in meatballs varied, namely 1.9x10 6, 7.5x10 6, 5.6x10 6, 1.8x10 6, 8.6x10 6, and 9.2x10 6. The results of this study showed that the meatball samples had microbial contamination greater than 10 5 CFU/gr or did not meet SNI standards. Based on macroscopic and microscopic morphological identification as well as biochemical reactions, all isolates were classified as bacteria from the genus Bacillus

Comprehensive Guided Inquiry Learning Model through Digital Concepts for Aquaculture Students: A Review Megahati S, Ruth Rize Paas; Yuliana, Liza
JOURNAL OF DIGITAL LEARNING AND DISTANCE EDUCATION Vol. 4 No. 7 (2025): Journal of Digital Learning and Distance Education (JDLDE)
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/jdlde.v4i7.627

The abstract nature of the topics is easily understood while learning chemistry through guided inquiry. This article employs the A Review (SLR) technique to review eleven papers released between 2018 and 2023 that deal with teaching chemistry using various guided inquiry models. Three online article databases—ERIC, Scopus, and Google Scholar—were used to retrieve articles methodically. The information in this review will be helpful to educators and researchers who work in chemical education in understanding guided inquiry models, how they impact chemical learning outcomes, and how to apply them to improve students' comprehension of chemistry. The review's conclusions show how various guided inquiry strategies immerse students in a problem, offer them an investigation to work through and provide guidance on how to solve the problem. Guided inquiry models influence chemistry learning outcomes by enhancing metacognition, concept understanding, critical thinking skills, science process skills, learning outcomes, creative thinking abilities, and reducing misconceptions. Many learning models or strategies, including guided inquiry, guided inquiry-based on blended learning, guided inquiry-based on the flipped classroom, guided inquiry model integrated with STEM, and guided inquiry and task hierarchy analysis model in cooperative learning strategy, have also used different chemistry learning models.

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