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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Elementary and Childhood Education
Maria Ulfa
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Pengaruh Penggunaan Gadget Terhadap Interaksi Sosial Anak Usia 5-6 Tahun di PAUD Mutiara Hati Kota Mataram Maria Ulfa; Gunawan Gunawan; Baik Nilawati Astini; Ika Rachmayani
Indonesian Journal of Elementary and Childhood Education Vol. 4 No. 3 (2023): Edisi September 2023
Publisher : Indonesian Publication Center

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Abstract

This research is motivated by the use of gadgets that continue to increase from year to year. The use of gadgets is not only used by adults but almost all circles including teenagers, children, and even toddlers have used gadgets in their daily lives. The tendency to excessive and inappropriate use of gadgets causes social interaction in children to be disrupted. This study aims to measure the effect of gadget use on social interaction of children aged 5-6 years in PAUD Mutiara Hati Mataram City. This research uses a type of quantitative research with ex-post facto methods. The sample used in this study was group B children in PAUD Mutiara Hati Mataram City, a total of 25 people. Sampling in this study uses saturated sampling, which is a sampling technique when all members of the population are used as samples using the Likert scale. Analytical techniques in the form of prerequisite tests, analysis and hypothesis tests. The analysis prerequisite tests include: normality test, homogeneity test, and linearity test. While the hypothesis test uses a linear regression test. The results of the hypothesis test show a p value (0.000) < 0.05 which means Ha is accepted and Ho is rejected, so it can be concluded that there is an influence between the use of gadgets on the social interaction of children aged 5-6 years in PAUD Mutiara Hati Mataram City. The influence between the use of gadgets and social interaction is positive, which means that the better or wiser the use of gadgets, the higher the child's social interaction and vice versa.
Synthesis and Characterization of Composites-Based Bacterial Cellulose by Ex-Situ Method as Separator Battery Maria Ulfa; Inda Noviani; Emmy Yuanita; Ni Komang Tri Dharmayani; Sudirman; Sarkono
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3819

Abstract

Many studies have been conducted and developed on cellulose-based battery separator materials, including bacterial cellulose, which has characteristics like plant cellulose. This research aims to synthesize BC/Al2O3 composite and analyze its potential as a battery separator. The synthesis of the composite with the ex-situ method is to immerse BC from tofu liquid waste (fermentation time variation of 6, 7, and 8 days) into Al2O3 suspension. The characterization results showed that the immersion of Al2O3 in BC can increase porosity, electrolyte absorption, and conductivity, indicating that the composite has the potential to be used as a battery separator.
Antibacterial Activity of Marine Sponge (Stylotella sp.) Ni Komang Tri Dharmayani; Isnaini; Maria Ulfa; Sudirman; Emmy Yuanita; Baiq Nila Sariningsih
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3839

Abstract

Sponges are marine biota that makes up coral reefs that live on the bottom of the waters and have an important role in marine ecosystems. Sponges have bioactive components that have not been widely used by the community. This study aimed to analyze the content of secondary metabolites and the antibacterial activity of the sponge Stylotella sp. antibacterial activity test against Gram-negative (-) Escherichia coli and Gram-positive (+) Staphylococcus aureus was carried out using the good diffusion method. The results of antibacterial testing with various concentrations of 50, 100, and 150 ppm of the isolates showed that the zone of inhibition against E. coli was 11.3; 12; and 13 mm while for S. aureus was 12.3; 13; and 14 mm. The results of antibacterial testing with a concentration of 600 ppm of sponge extract showed an inhibition zone on E. coli and S. aureus in the amount of 13.3 and 14 mm, respectively. The test results showed that the sponge extract and isolate were in the intermediate category and were resistant to E. Coli bacteria. and S. Aureus
Co-Authors Astini, Baik Nilawati Baiq Nila Sariningsih Emmy Yuanita G. Gunawan Inda Noviani Isnaini Rachmayani, Ika Sudirman Tri Dharmayani, Ni Komang