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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pendidikan Sains dan Komputer Elektriese: Jurnal Sains dan Teknologi Elektro
Intan Maulina
Universitas Deli Sumatera
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Other

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Analisis Kandungan Unsur Hara Pupuk Organik Cair dari Limbah Pisang : Musa Paradisiaca Hamela Sari Sitompul; Intan Maulina; Idawati Situmorang
Jurnal Pendidikan Sains dan Komputer Vol. 3 No. 02 (2023): Artikel Riset Periode Oktober 2023
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/jpsk.v3i02.3288

Abstract

Tujuan penelitian ini adalah untuk mengetahui kandungan unsur hara pupuk organic cair dari limbah kulit pisang. Unsur hara yang dianalisis yaitu kandungan Nitrogen (N), Fosfor (P), Kalium (K), dan Magnesium (Mg). Metode penelitian yang digunakan yaitu eksperimental laboratoris. Tahapan dari penelitian ini meliputi mencari sumber materi mengenai proses fermentasi pupuk organik cair dari limbah kulit pisang mencari penelitian sejenis, menentukan variabel, persiapan percobaan, melakukan percobaan, analisa parameter N, P,K dan Mg. Data yang diperoleh dibuat tabel dan grafik hasil analisa, dan membuat kesimpulan. Berdasarkan hasil analisa uji laboratorium pada sampel pupuk organic cair dari limbah kulit pisang menunjukkan tingkat pH yang menguntungkan nilai Nitrogen, Fosfor, Kalium dan Magnesium sehingga cocok pilihan untuk pemupukan tanaman organik. Konsentrasi Nitrogen (N) sebesar 1.3%. Konsentrasi fosfor (P) pada pupuk organik cair ini juga memiliki jumlah yang besar. Fosfor (P) kandungan dalam pupuk ini adalah 0.02%. Kalium (K) kandungan dalam pupuk ini adalah 3.01%.  Kandungan Magnesium (Mg) dalam pupuk ini adalah 0.16%.
Digital Green Education through Green Chemistry Supports the Green Economy by Improving Science Skills and Entrepreneurial Character Hamela Sari Sitompul; Intan Maulina; Doughlas Pardede
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12332

Abstract

Green education is integrated into chemistry learning to support the green economy, as it offers numerous applications in everyday life, including waste management and sustainable reforestation programs. Based on the Merdeka Curriculum, one aspect of chemistry learning in grade 10 is green chemistry, which explores global issues and problem-solving. Science skills are closely linked to green education in chemistry learning, as students gain scientific knowledge and attitudes from the theories they learn. All these efforts are directed toward achieving the Sustainable Development Goals (SDGs). The research used a quasi-experimental Design. The study had two groups, the experimental and the control groups. The sample was SMA Negeri 1 Gunung Meria, Deli Serdang Regency students. The research instruments used were essay tests and observations. The results of the posttest t-test analysis between the control and the experimental group at a significance level of 0.05, then 0.00 <0.05, then Ho is rejected and Ha is accepted. The results of the students' entrepreneurial character scores can be seen in Figure 1, where the experimental class has an average score of 77.70 and the control class 42.85. The results of the study can be concluded that education has a significant influence on students' science process skills. Students' entrepreneurial character shows a substantial difference, in that in the experimental class, there is good development.
Hubungan antara Lumbosacral Transitional Vertebra dan Degenerasi Diskus Lumbal pada Pemeriksaan MRI: Relationship between Lumbosacral Transitional Vertebra and Lumbar Disc Degeneration on MRI Examination Aulia Ramadhani Simatupang; Laila Syalsabilah Pohan; Putri Salsabilah Ritonga; Anisah Dini Atika; Miftahul Jannah; Nirwana Claudia Br Sitepu; Rifky Audiansyah Pasaribu; Intan Maulina
Elektriese: Jurnal Sains dan Teknologi Elektro Vol. 16 No. 01 (2026): Call for Papers April 2026
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/elektriese.v16i01.7284

Abstract

Lumbosacral Transitional Vertebra (LSTV) is a congenital anatomical variation at the transition between the last lumbar vertebra and the sacrum that can affect the biomechanics of the lumbosacral spine. These biomechanical changes may increase mechanical stress on the overlying vertebral segments and accelerate lumbar disc degeneration. Lumbosacral disc degeneration is a major cause of low back pain, with high prevalence in the productive-age population and an impact on quality of life and productivity. Magnetic Resonance Imaging (MRI) is an imaging modality with high accuracy for evaluating soft-tissue structures of the spine, thereby playing an important role in identifying LSTV and assessing the degree of disc degeneration. This study used a systematic literature review method to analyze the relationship between LSTV and lumbar disc degeneration based on MRI findings. A literature search was conducted in PubMed, Google Scholar, ScienceDirect, and ResearchGate databases using the keywords "Lumbosacral Transitional Vertebra", "LSTV", "Lumbar Disc Degeneration", and "MRI". The obtained articles were then selected based on predetermined inclusion and exclusion criteria. Of the 252 articles found, 38 met the criteria for further analysis. The review results showed that most studies reported an increased risk of lumbar disc degeneration in individuals with LSTV, particularly in the segments cranial to the transitional vertebrae, such as L4–L5. These findings suggest that LSTV may affect biomechanical load distribution in the lumbosacral spine. Therefore, identifying LSTV via MRI is important in evaluating patients with low back pain to help determine structural risk factors and support more appropriate management planning.
Co-Authors Anisah Dini Atika Aulia Ramadhani Simatupang Doughlas Pardede Hamela Sari Sitompul Hamela Sari Sitompul Idawati Situmorang Laila Syalsabilah Pohan Miftahul Jannah Nirwana Claudia Br Sitepu Putri Salsabilah Ritonga Rifky Audiansyah Pasaribu