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All Journal Biosaintifika: Journal of Biology & Biology Education el-Khuwailid: Journal of Multidisciplinary Studies
Pradipta, Aruna
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Agriculture, Biological Sciences & Forestry Arts Humanities Education Social Sciences

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Pengembangan Kartu Unsur Periodik Kimia Berbasis Augmented Reality untuk Meningkatkan Motivasi Siswa dalam Belajar Pradipta, Aruna
el-Khuwailid: Journal of Multidisciplinary Studies Vol. 1 No. 1 (2025): el-Khuwailid, March 2025
Publisher : MAN Insan Cendekia Siak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63826/el-khuwailid.v1i1.6

Abstract

This research aims to describe the appearance of the KUPERKIM (chemical periodic element card) learning media and analyze the validation text results of the KUPERKIM learning media on periodic system of elements material. This research method uses the ADDIE method (analysis, design, development, implementation and evaluation). The validity test for the appropriateness of the material and media was carried out using 3 validators and the implementation test for the feasibility of using the media was carried out on 30 tenth grade students at MAN Insan Cendekia Siak as research samples using Likert scale indicators. The indicators contained in the media expert validation questionnaire include 15 indicators which are grouped into 2 aspects, include the software engineering aspect and the visual communication aspects. Apart from that, there are 15 indicators in the material expert validation questionnaire which are grouped into 4 aspects, including material aspects, linguistic aspects, implementation aspects, and visual communication aspects. Based on all assessments from media experts, the average score for all aspects is 3,35 and the assessment from material experts is 3.20, KUPERKIM can be declared suitable for use as an educational game media and can attract students’ interest in learning.
The Environmental Factors Enhance the Growth and Survival of Rhizophora Seedlings Sinaga, Na Dame Maulibulung; Pradipta, Aruna; Martuti, Nana Kariada Tri; Jabar, Muhammad Abdul; Soleha, Iro Datus
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.35777

Abstract

Coastal ecosystems are synonymous with mangrove trees. Threatened mangrove existence is tantamount to reduced biological existence, weakened coastal protection, and reduced carbon storage. Moreover, mangrove growth naturally depends on the quality of seedlings supported by proper nursery management. This study aims to evaluate the impact of four environmental factors (light intensity, salinity, pH, and tidal frequency) on the growth and survival of Rhizophora: Rhizophora mucronata, Rhizophora stylosa, and Rhizophora apiculata cultivated in nurseries with a water system integrated with the Internet of Things (IoT). A single-factor design was applied, with each treatment bed containing 600 seedlings (200 per species) and an uncontrolled bed as a control. Weekly random sampling of 20% of seedlings from each treatment for eight weeks. Data were analyzed using a two-way ANOVA with treatment and species as fixed factors, followed by the Tukey HSD test at a significance level of 5%. The results showed that R. mucronata in the light treatment (without shade net) achieved the highest survival rate (98.8%) and the largest stem diameter, which was 0.698 cm. In addition, the highest seedling height was R. mucronata in the high-yield salinity treatment, reaching 56.78 cm, and the highest number of leaves was recorded in R. apiculata in the salinity treatment, with an average of 6.92 leaves per seedling. IoT-integrated nurseries stabilize water supply and tidal cycles, reduce mortality to below 10%, and enhance seedling quality. These findings indicate that nursery environmental management can improve the consistency of mangrove seedling growth and support large-scale restoration.
Co-Authors Jabar, Muhammad Abdul Nana Kariada Trimartuti Sinaga, Na Dame Maulibulung Soleha, Iro Datus