Jurnal Mangifera Edu
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The cells at work animation improves students' analytical skills in learning the circulatory system
Full text linkAnalytical skills are one of the essential skills that high school students must possess and are listed in the curriculum. Analytical skills are included in category C4 in Bloom's taxonomy. However, many students still lack this ability. This is influenced by several factors, one of which is the type of learning media. This study aims to evaluate the effectiveness of the Cells at Work animation as a learning medium for biology, with a focus on the material related to the circulatory system. The method used is a pre-experimental design with a one-group pre-test-post-test model, conducted on class XI- MIPA 5 students at SMA Pasundan 2, Bandung. The results of the study showed that this animation media makes it easier for students to understand the material due to its attractive visual and audio displays. This can be seen from the increase in the average student score, namely from 56 at the pre-test to 83 at the post-test, with the percentage of mastery of all indicators reaching 83%. Thus, the Cells at Work animation is effective for use as a learning medium in biology, especially for material related to the circulatory system. This study provides empirical evidence that animated media with contextual content, such as Cells at Work, can significantly enhance analytical thinking skills in science learning, particularly for complex topics like the circulatory system
The relationship between learning independence, motivation, science literacy skills, and learning outcomes of public high school students in North Kolaka Regency
Full text linkThe purpose of this study was to determine the relationship between learning independence, learning motivation, science literacy skills, and the learning outcomes of students in grade XI at Public High School in North Kolaka Regency. This type of research is quantitative, employing an ex-post facto correlational approach. Data acquisition using non-test instruments, such as questionnaires, to assess learning independence and motivation. Administer test instruments, including essays and multiple-choice questions, on digestive system material to assess science literacy skills and learning outcomes. Descriptive statistical data analysis, and inferential statistical data analysis in the form of prerequisite tests (normality test, linearity test, heteroscedasticity test, and Multicolinerity test), hypothesis testing (simple linear regression analysis and multiple linear regression analysis). The value of the correlation coefficient (R) for students is 0.848, with an R-squared value or coefficient of determination of 0.719, and a significant level of 0.000. There is a positive and significant relationship between learning independence, learning motivation, and science literacy with students' learning outcomes on digestive system material at North Kolaka Regency SMAN. These three factors together contribute 71.9% to learning outcomes. Based on the correlation coefficient value, it is known that the relationship between learning independence, motivation, and science literacy skills is in the "strong" category based on the correlation coefficient guideline, the value of R Variable learning independence, learning motivation, science literacy skills predict learning outcomes on the digestive system material is significant between learning independence, learning motivation, science literacy skills with student learning outcomes
Blood glucose levels in hyperglycemic white rats administered various preparations of bay leaves
Full text linkElevated blood glucose levels, known as Hyperglycemia, are a key feature of diabetes mellitus (DM), which remains a primary global health challenge. The rising prevalence of type 2 diabetes and the side effects of synthetic drugs have led to interest in natural alternatives. Bay leaves (Syzygium polyanthum), commonly used in Indonesian cuisine, contain bioactive compounds such as flavonoids, tannins, and terpenoids that may have antidiabetic properties. This study examined the effect of bay leaves preparations—decoction, tea, and filtrate—on blood glucose levels in hyperglycemic white rats and identified the most effective form. A proper experimental design involved 25 male rats, divided into five groups: a negative control, a positive control (alloxan only), and three treatment groups (decoction, tea, and filtrate). Hyperglycemia was induced using alloxan (150 mg/kg BW), and treatments were given orally twice daily for 30 days. Blood glucose levels were measured before and after treatment using a GlucoDr glucometer. Data were analyzed using one-way ANOVA and the LSD test (α = 0.05). Significant differences were observed among groups (Fhit = 16.61 > Ftab = 2.87). The decoction group had the most considerable glucose reduction (112.4 mg/dL), closely followed by the negative control (118 mg/dL), while the tea and filtrate groups showed lesser effects. Decoction proved most effective, likely due to better compound extraction. These findings highlight the potential of bay leaves decoction as a natural remedy for hyperglycemia, warranting further clinical research
The application of chunking technique combined with writing is thinking to improve the communication skills
Full text linkThe student's cognitive load is high, and the level of thinking and communication skills is low. So, the chunking technique combined with writing thinking is implemented. The purpose of this study was to determine the difference in communication skills of students of circulatory system material taught with chunking techniques combined with writing is thinking, chunking techniques, and lecture techniques in class XI students of SMA Negeri 20 Gowa in the 2024/2025 school year. This type of research includes experiments in the form of a pretest, posttest, and nonequivalent control group design. Sampling technique with purposive sampling with specific consideration in the form of almost the same initial ability of students from three treatment classes where class XI. 1 (experimental class), XI.2 (positive control class), and XI.3 (negative control class), each of which totaled 30 students. Data acquisition using non-test instruments to see students' communication skills and teaching module implementation sheet. Hypothesis testing uses the Anacova test because the data is normally distributed and homogeneous. The results of hypothesis testing showed that the significance value was <0.000. This shows the sig value < α (0.05), so it can be concluded that H0 is rejected and H1 is accepted. This means that there are differences in the communication skills of students who are taught with chunking techniques combined with writing thinking (experimental class), chunking techniques (positive control class), and lecture techniques (negative control class) on human circulatory system material
Biosynthesis of DNA for disease detection.
Full text linkAn aquatic plant breathes through pores in the atmosphere, creating a bacterial loop cycle. Harmful toxins and pathogens invade the foreign substrate and recessive genes. The purpose of this study is gene editing and gene expression containing information to produce proteins and fight back pathogens. The Methodology of this study is the biosphere of RNA involved in the transcription and translation of DNA to detect several diseases. It is a narrative review of DNA biosynthesis in identifying the mutations for genes, chromosomes, or proteins. Genetic alterations in cancer development have urged many researchers to continue their expedition to find prevention strategies and treatments that are curable for the disease. Thus, gene therapies include gene augmentation, gene slicing, gene suicide, and gene editing by treating certain diseases. The momentum of replacing a damaged gene with a healthy gene using gene therapy in treating a wide range of diseases is quite impressive. An inborn child will have a healthy gene by inheriting it from the parent to the infant for further development. Circular RNAs are meant for protein synthesis. The nutrients are the building blocks of amino acids. The regrowth of new tissues is used to rejuvenate organ transplants. It is highly apprehensive for microbial cells to produce on their own. Not all bacteria are good, but the ones that fight off pathogens in the circular loops of plasmids. The DNA of bacterial cells is composed of chromosomal traits of inheritance in providing nutritious meals and becoming an antibody
Teacher and student perception of integrated science literacy in information, technology, and environtment
Full text linkThe development of technology and information in the 21st century is increasing rapidly. Meanwhile, Indonesia's science literacy levels remain categorized as low. Science literacy is among the most essential skills in the 21st century, so integrated technology, information, and environment are fundamental. This research aims to understand the perception of teachers and students towards science literacy integrated with technology, information, and environmental literacy in Junior High Schools (SMP). This research falls under the quantitative category and employs an observational descriptive design. The sample in this study consists of three junior high schools in the Indramayu Regency, representing the Indramayu region's western, central, and eastern regions. The questionnaire instrument determines students' science literacy ability towards information, technology, and the environment. Meanwhile, interviews were used to determine teachers' and students' perceptions of information-based science literacy, technology, and the environment. The research data were obtained using both questionnaires and interview instruments. The study results reveal that the integration of science literacy with information, technology, and the environment achieved percentages of 69.42% for information-integrated science literacy, 70.98% for technology-integrated science literacy, and 73.89% for environment-integrated science literacy, highlighting varying levels of proficiency across these domains. This indicates a moderate ability to integrate science literacy effectively
The effect of project-based learning on improving students' science learning outcomes to privat school
Full text linkThere is still a lack of creativity and innovation in teachers when selecting learning models, so students are less active in learning, and their learning outcomes are low. This study aims to analyze the project-based learning model on the science learning outcomes of students at private junior high school Bhayangkari 3 Rantauprapat in the 2024/2025 academic year. The research design used in this study is an experimental research type with the One-Group Pretest-Posttest model. Before administering treatment, a pretest is conducted to assess the group's initial stability and condition, ensuring clarity before proceeding with the intervention. After the clarity of the group's condition can be seen, then treatment is provided using a project-based learning model. The study results showed that the language of students who previously did not understand and were less active in the learning process became more active. Students can construct their understanding through groups and individuals in learning materials. After using the project-based model, the average value was 75,00, while the conventional one was 67,411. This shows a positive influence on science learning outcomes in the application of the project-based model. This also indicates that active learning strategies foster student engagement and improve academic performance
Trend of genetics learning media research: A bibliometric analysis (1968-2024)
Full text linkThe use of learning media difficulty in comprehending complex material, the inability to effectively visualize microscopic objects that require specialized teaching aids or interactive media. This descriptive qualitative research, employing a bibliometric approach, aims to analyze research trends on learning media in genetics from 1964 to 2024. The analysis focuses on the volume and distribution of publications, the contributing countries, and the institutional affiliations, as well as key journals in the field. The research subject is learning media in genetics courses. Data collected through the Scopus website, using the keywords “genetic,” “learning,” and “media,” yielded 1,135 results, which were analyzed using R and Biblioshiny software. The trend in research on genetics learning media has increased year by year, with a sharp increase from 2017 to 2023. This result indicating that the research trend reached its peak in that year. The USA and China are the countries that contribute the most to publishing articles, suggesting potential for collaboration with various countries. The most active affiliation, with a total of 72 articles, is the University of California. The journal that contributes the most to genetics learning media is the Journal of Behavior Genetics. This research can serve as a reference for future researchers interested in studying genetics learning media, with the recommendation to combine multiple applications, such as Biblioshiny with Vosviewer, to ensure more precise and more valid findings. Additionally, using more specific keywords, such as e-modules, virtual reality (VR), augmented reality (AR), or game-based learning, is advised
Potential development of field activity design on ecology material as student learning material
Full text linkThis study aims to analyze the design of laboratory activities (DKL) for field trips activities in the Ranca Upas heterogeneous forest and to provide solutions through reconstruction. The significance of using the field trip method to enhance student learning outcomes and environmental awareness. The Ranca Upas heterogeneous forest was chosen as a field trip location because it has high micro-diversity and abundance. The DKL was designed to examine the interaction between biotic and abiotic factors as well as the inter-component interactions in the heterogeneous forest. This study employed a qualitative descriptive method utilizing the Analyze, Create, Try, and Reconstruct framework. A survey of the forest locations served as the basis for developing the DKL. The design of the DKL was informed by the survey results and analyzed using the Novak-Gowin Vee Diagram rubric. A trial was conducted to assess the suitability of the DKL in real field conditions. The results of this trial were then analyzed, leading to a reconstruction of the DKL based on challenges encountered during the trial. The reconstruction process included refining the tools used, preparing more structured activity steps, and developing more comprehensive practicum questions. This research has implications for the development of higher-quality and more effective field trip DKLs, ultimately aimed at improving students' science process skills and critical thinking abilities
Effect of the use of ovaprim® on the spawning of kissing gourami (Helostoma temminckii) at UPR Doa Mandeh, Ogan Ilir
Full text linkThe kissing gourami (Helostoma temminckii) is a freshwater species increasingly cultivated in controlled aquaculture systems. However, its production is hindered by the limited availability of broodstock and fry, which still heavily depend on natural catches that fluctuate seasonally. To address this challenge, controlled environment aquaculture offers a sustainable solution to boost the kissing gourami population. One effective method is semi-natural spawning through gonadotropin hormone induction using Ovaprim®, which promotes year-round reproductive readiness in broodstock. This study aims to apply and evaluate the semi-natural spawning technique of kissing gourami using Ovaprim® at UPR Doa Mandeh, Ogan Ilir. Conducted between August and September 2024, the research compared two treatments: natural spawning (P0) and semi-natural spawning (P1). The findings demonstrated promising results, with a fecundity of 9,619 eggs, a fertilization rate of 90.4%, a hatching rate of 94%, and a survival rate of 95%. Water quality parameters remained within optimal ranges, with broodstock pond temperatures between 30–30.6°C and pH levels of 7.27–7.53, while the rearing aquarium maintained a temperature of 31°C and a pH of 7.62–7.66. These results highlight the potential of semi-natural spawning using Ovaprim® as a viable approach for enhancing kissing gourami reproduction, reducing dependency on wild populations, and supporting sustainable aquaculture practices