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All Journal INVENTION: Journal Research and Education Studies
Saragi, Shela Estica
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Analisis Pengaruh Penggunaan Bahasa Campuran (Code-Mixing) dalam Pembelajaran IPA terhadap Kemampuan Menulis Teks Akademik Mahasiswa Pendidikan IPA Bilingual 2024 Batubara, Astrida J.; Christy, Novia; Saragi, Shela Estica; Siregar, Suci Asda; Pasaribu, Tania; Lubis, Fitriani
Invention: Journal Research and Education Studies Volume 6 Nomor 1 Maret 2025
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v6i1.2415

Abstract

This study aims to analyze the effect of the use of mixed language (code-mixing) in Natural Sciences (IPA) learning on the ability to write academic texts of Bilingual Science Education students in 2024 in Medan State University. This study uses a quantitative method by distributing questionnaires to respondents. The research sample consisted of Bilingual Science Education students who took science courses. The results showed that the majority of respondents (around 54%) were neutral about the influence of the use of code-mixing in science learning on their ability to write academic texts. This indicates that the use of mixed languages does not have a significant impact, either positive or negative, on students' ability to write academic texts in the context of bilingual science learning. The implication of this study is the need for further research to explore other factors that may affect the academic text writing ability of bilingual students, as well as to identify alternative learning strategies that are more effective in improving students' academic text writing skills in the context of bilingual education.
Mekanisme Neuroplastisitas dalam Pembelajaran dan Pemulihan Fungsi Setelah Cedera Sistem Saraf Pusat: Tinjauan Literatur Komprehensif Purba, Greace Enita; Hutapea, Helen Veronita; Situmeang, Juwita Cristina; Nababan, Novia Christy; Saragi, Shela Estica; Silitonga, Melva
Invention: Journal Research and Education Studies Volume 6 Nomor 1 Maret 2025
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v6i1.2491

Abstract

Central nervous system (CNS) injuries such as stroke are a leading cause of global disability (51 million DALYs), with a prevalence in Indonesia reaching 10.9% (GBD, 2019; Riskesdas, 2018). Neuroplasticity through BDNF-dependent synaptic plasticity mechanisms (Kowianski et al., 2018) and tDCS-mediated cortical reorganization (Lefaucheur et al., 2022) offers rehabilitation solutions, but their implementation faces challenges due to genetic variability (BDNF Val66Met) and technological access disparities (Siregar et al., 2023). This article aims to: Analyze BDNF-tDCS interactions at molecular and clinical levels.Evaluate the effectiveness of tDCS based on recent evidence (2019–2024).Formulate low-cost implementation strategies for Indonesia.The methodology involves a systematic PRISMA review of 45 studies from PubMed, Scopus, and ScienceDirect. The analysis includes:  Meta-analysis of tDCS effects on motor recovery (RevMan 5.4). Policy analysis using the WHO framework for essential health technologies. Key findings indicate: BDNF levels >35 ng/mL enhance motor recovery by 2.3x (95% CI: 1.8–3.1; p<0.001). tDCS significantly improves motor function (23.5%, p<0.01), but only in BDNF Val/Val genotypes.Implementation cost: Portable tDCS protocols (Rp500,000/unit) are 90% cheaper than TMS.Integration of BDNF genotype screening, standardized tDCS protocols, and policy advocacy can optimize CNS rehabilitation in Indonesia. This study provides the first evidence-based guide combining neuroscience and health policy.
Analisis Kebutuhan Pengembangan E-Modul IPA Berbasis Pembelajaran Berdiferensiasi di SMP Negeri 1 Percut Sei Tuan Hasanah, Niswatun; Saragi, Shela Estica; Simanjuntak, Mariati Purnama
Invention: Journal Research and Education Studies Volume 6 Nomor 3 November 2025 | IN PRESS
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v6i3.2914

Abstract

Penelitian ini bertujuan untuk menganalisis kebutuhan pengembangan e-modul IPA berbasis pembelajaran berdiferensiasi di SMP Negeri 1 Percut Sei Tuan. Metode penelitian menggunakan pendekatan kualitatif deskriptif dengan teknik pengumpulan data melalui analisis dokumen dan wawancara mendalam. Hasil penelitian menunjukkan bahwa bahan ajar IPA yang digunakan selama ini belum memenuhi standar pembelajaran berdiferensiasi. Analisis dokumen mengungkapkan bahwa modul dan LKPD yang ada masih bersifat konvensional, didominasi teks, kurang interaktif, dan belum mengakomodasi keragaman belajar siswa. Wawancara dengan guru IPA mengidentifikasi kebutuhan mendesak terhadap bahan ajar digital yang fleksibel, menarik, dan mampu memfasilitasi diferensiasi konten, proses, maupun produk pembelajaran. Berdasarkan temuan tersebut, direkomendasikan pengembangan e-modul IPA "JELAJAH IPAKU" yang mengintegrasikan pendekatan diferensiasi dengan fitur multimedia dan project-based learning. Penelitian ini menyimpulkan bahwa pengembangan e-modul berdiferensiasi merupakan solusi strategis untuk meningkatkan kualitas pembelajaran IPA yang inklusif dan relevan dengan tuntutan abad 21.
Analisis Pengaruh Penggunaan Bahasa Campuran (Code-Mixing) dalam Pembelajaran IPA terhadap Kemampuan Menulis Teks Akademik Mahasiswa Pendidikan IPA Bilingual 2024 Batubara, Astrida J.; Christy, Novia; Saragi, Shela Estica; Siregar, Suci Asda; Pasaribu, Tania; Lubis, Fitriani
Invention: Journal Research and Education Studies Volume 6 Nomor 1 Maret 2025
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v6i1.2415

Abstract

This study aims to analyze the effect of the use of mixed language (code-mixing) in Natural Sciences (IPA) learning on the ability to write academic texts of Bilingual Science Education students in 2024 in Medan State University. This study uses a quantitative method by distributing questionnaires to respondents. The research sample consisted of Bilingual Science Education students who took science courses. The results showed that the majority of respondents (around 54%) were neutral about the influence of the use of code-mixing in science learning on their ability to write academic texts. This indicates that the use of mixed languages does not have a significant impact, either positive or negative, on students' ability to write academic texts in the context of bilingual science learning. The implication of this study is the need for further research to explore other factors that may affect the academic text writing ability of bilingual students, as well as to identify alternative learning strategies that are more effective in improving students' academic text writing skills in the context of bilingual education.
Mekanisme Neuroplastisitas dalam Pembelajaran dan Pemulihan Fungsi Setelah Cedera Sistem Saraf Pusat: Tinjauan Literatur Komprehensif Purba, Greace Enita; Hutapea, Helen Veronita; Situmeang, Juwita Cristina; Nababan, Novia Christy; Saragi, Shela Estica; Silitonga, Melva
Invention: Journal Research and Education Studies Volume 6 Nomor 1 Maret 2025
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/invention.v6i1.2491

Abstract

Central nervous system (CNS) injuries such as stroke are a leading cause of global disability (51 million DALYs), with a prevalence in Indonesia reaching 10.9% (GBD, 2019; Riskesdas, 2018). Neuroplasticity through BDNF-dependent synaptic plasticity mechanisms (Kowianski et al., 2018) and tDCS-mediated cortical reorganization (Lefaucheur et al., 2022) offers rehabilitation solutions, but their implementation faces challenges due to genetic variability (BDNF Val66Met) and technological access disparities (Siregar et al., 2023). This article aims to: Analyze BDNF-tDCS interactions at molecular and clinical levels.Evaluate the effectiveness of tDCS based on recent evidence (2019–2024).Formulate low-cost implementation strategies for Indonesia.The methodology involves a systematic PRISMA review of 45 studies from PubMed, Scopus, and ScienceDirect. The analysis includes:  Meta-analysis of tDCS effects on motor recovery (RevMan 5.4). Policy analysis using the WHO framework for essential health technologies. Key findings indicate: BDNF levels >35 ng/mL enhance motor recovery by 2.3x (95% CI: 1.8–3.1; p<0.001). tDCS significantly improves motor function (23.5%, p<0.01), but only in BDNF Val/Val genotypes.Implementation cost: Portable tDCS protocols (Rp500,000/unit) are 90% cheaper than TMS.Integration of BDNF genotype screening, standardized tDCS protocols, and policy advocacy can optimize CNS rehabilitation in Indonesia. This study provides the first evidence-based guide combining neuroscience and health policy.
Co-Authors Batubara, Astrida J. Christy, Novia Fitriani Lubis FITRIANI LUBIS, FITRIANI Hutapea, Helen Veronita Melva Silitonga Nababan, Novia Christy Niswatun Hasanah Pasaribu, Tania Purba, Greace Enita Simanjutak, Mariati Purnama Siregar, Suci Asda Situmeang, Juwita Cristina