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Integrasi Evaluasi Eksperimental dan Analisis Bibliometrik Photosynthetic Bacteria dan Jakaba sebagai Bioaktivator Pertanian Organik Nanda; Lubis, Rafiqah Amanda; Mukhlis; Nasution, Fery Endang; Sipahutar, Luky Wahyu
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11789

Abstract

The excessive use of synthetic chemical inputs in agriculture has led to soil degradation, highlighting the need for environmentally friendly bioactivator alternatives. This study aims to integrate bibliometric analysis and experimental evaluation of Photosynthetic Bacteria (PSB) and Jakaba (Corallomycetella repens) as bioactivators in organic farming systems. Bibliometric analysis was conducted using Scopus publications from 2015–2025 and visualized with VOSviewer to map research trends, dominant keywords, and the publication status of PSB and Jakaba. A field experiment was then carried out in Kaluku Tinggu Village, Sigi District, using hybrid corn (Bisi-18) with four treatments: control, PSB, Jakaba, and a combination of PSB+Jakaba. Data were analyzed using ANOVA and Tukey HSD test, supported by Response Surface Methodology (RSM) for treatment effectiveness evaluation. Results showed that the PSB+Jakaba combination increased plant height (15.3%), fresh weight (20.9%), dry weight (25.1%), soil pH (13.5%), organic C content (41.2%), cation exchange capacity (27.6%), microbial population (24%), and dehydrogenase activity (36.3%) compared to the control. Active compounds such as IAA and siderophores from PSB, along with lignocellulolytic enzymes from Jakaba, played key roles in improving soil quality. This study bridges the scientific knowledge gap and reinforces the potential of local bioactivator formulations for sustainable organic farming on marginal land.
Analisis Kebutuhan Rohani Dan Strategi Pendidikan Agama Kristen Bagi Remaja/Pemuda Di GKE Bukit Harapan Amelia Yuliana; Nanda; Rina Lorensa
Jejak digital: Jurnal Ilmiah Multidisiplin Vol. 1 No. 6 (2025): NOVEMBER
Publisher : INDO PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/xhjrma47

Abstract

Penelitian ini bertujuan untuk menganalisis kebutuhan rohani dan merumuskan strategi Pendidikan Agama Kristen (PAK) yang relevan bagi remaja/pemuda di Gereja Kalimantan Evangelis (GKE) Bukit Harapan, Sei Rahayu II. Metode penelitian yang digunakan adalah kualitatif dengan pengumpulan data melalui observasi dan wawancara dengan pendeta serta pembina remaja. Temuan menunjukkan bahwa pemuda menghadapi tantangan seperti rendahnya kehadiran ibadah meski jumlah mereka banyak, pengaruh teknologi dan media sosial, serta pergumulan identitas diri dan iman. Kebutuhan rohani mereka meliputi pemahaman firman Tuhan yang kontekstual, pembentukan karakter Kristen, dan komunitas yang mendukung. Studi ini merekomendasikan penerapan metode pemahaman Alkitab yang interaktif, pemanfaatan media digital, desain ibadah tematik, dan pembentukan pendampingan kelompok kecil untuk memenuhi kebutuhan tersebut secara efektif dan menumbuhkan pertumbuhan rohani yang holistik.
Counseling Services and Analysis of Parental Roles in Supporting Children with ADHD Symptoms: A Case Study of Elementary School Students Maria Sentana, Ria; Eva Listiani, Marissa; Apriliani, Ardini; Septiani, Mawar; Nanda; Elfrida, Yulia
Jurnal Pendidikan Dasar dan Keguruan Vol 10 No 02 (2025): Volume 10 Nomor 2 2025
Publisher : Universitas Islam Ahmad dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/jpdk.v10i02.4141

Abstract

Anak Attention-Deficit Hyperactivity Disorder (ADHD) adalah anak yang memiliki kebutuhan khusus. Oleh karena itu, untuk kegiatan pembelajaran lebih efektif perlu adanya layanan konseling yang sesuai dengan kebutuhan anak. Penelitian ini bertujuan untuk mendeskripsikan: (1) Pelaksanaan layanan konseling belajar untuk anak Attention-Deficit Hyperactivity Disorder (ADHD) di Sekolah Dasar X. (2) Kesulitan yang dialami dalam pelaksanaan layanan konseling untuk anak Attention-Deficit Hyperactivity Disorder (ADHD). (3) Upaya tindakan dari permasalahan pelaksanaan layanan konseling belajar untuk anak Attention-Deficit Hyperactivity Disorder (ADHD). Jenis penelitian ini adalah penelitian kualitatif. Informan dalam penelitian ini adalah kepala sekolah, guru kelas, guru pendamping khusus, anak ADHD, dan anak non ADHD. Penelitian ini melalui pendekatan wawancara, observasi objek dan dokumentasi. Analisis menunjukkan: (1) Pelaksanaan layanan konseling untuk anak ADHD di Sekolah Dasar X sudah dilaksanakan melalui layanan khusus dengan konseling langsung dan terapi. Tujuan layanan konseling belajar untuk anak Attention-Deficit Hyperactivity Disorder (ADHD) di Sekolah Dasar X yaitu untuk memberikan layanan konseling yang disesuaikan dengan kebutuhan siswa agar dapat mencetak generasi hebat yang tidak hanya berasal dari bakat dan minat tetapi juga dari karaktek anak yang baik. (2) Unsur yang menghambat kesulitan belajar siswa ADHD yaitu unsur dari diri anak sendiri meliputi siswa kurang teliti dan kurang dalam mata pelajaran tertentu dan faktor dari lingkungan meliputi teman siswa yang cenderung tidak ingin berteman. (3) Peran interaksi orang tua dalam mendampingi anak dengan gejala ADHD (4) Strategi untuk mengatasi kesulitan layanan konseling belajar siswa Attention-Deficit Hyperactivity Disorder di Sekolah Dasar X melalui: Bimbingan Individu, Terapi, Kerjasama dengan Orang Tua
Spatial Autoregressive Quantile Regression Modeling of the Distribution of Drug Users in the District Karo Nanda; Siregar, Macrani Adi Putri
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i2.6545

Abstract

BNN data shows that an average of 50 people die from drugs every day, and Karo Regency is in second place for the distribution of drug abuse in North Sumatra after Medan City. Variables that have this risk include drug factors, namely availability and ease of obtaining drugs, individual factors, environmental factors, family factors, and social factors. Based on this, a model is needed to determine the development of the case. The SARQR model combines SAR modeling with quantile regression (QR). Combining the SAR model with quantile regression produces a model that is good for overcoming the problems of dependency and heterogeneity in modeling spatial data and is resistant to outlier data. This research aims to determine the Spatial Autoregressive Quantile Regression Model for the distribution of drug users in the Karo Regency. The type of research used is quantitative research. The data type used is secondary data, namely, the kind of data already existing, and the data source used in this research is drug users in the Karo district. The research results show that the Spatial Autoregressive Quantile Regression model for the distribution of drug users in Karo Regency obtained estimation results for the distribution parameters of drug users using a significance test. This model explains that the factors that significantly influence drug abuse are age, gender, occupation, and other underlying factors.
Bibliometric Study of Adaptive Rice (Oryza Sativa) Varieties and Adaptation Strategies Towards Extreme Climate Mukhlis; Harahap, Darmadi Erwin; Darwis, Muhammad; Hasibuan, Nikmah Sari; Nanda
Jurnal Penelitian Pendidikan IPA Vol 11 No 9 (2025): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i9.12720

Abstract

Extreme climate change poses a serious threat to global food security, particularly for rice, which is widely cultivated in tropical regions. Research on adaptive rice varieties and adaptation strategies is becoming increasingly important in responding to this challenge. This study aims to map developments, thematic trends, key actors, and collaborations in research on adaptive rice varieties to climate change, using a bibliometric approach. Data were obtained from the Scopus database for the period 2015–2025 using keywords related to “rice” and “climate adaptation/resilience.” The analysis was conducted using VOSviewer software for three main types of analysis: co-authorship, co-occurrence of keywords, and citation analysis. It was found that publications in this field continue to increase, with the largest contributions coming from China, India, and the United States. Dominant topics include climate-smart agriculture, genetic regulation, and biodiversity. The most prolific authors are Jat M.L., Hasegawa T., and Pan G. Citation analysis indicates a limited amount of highly influential literature, while collaboration networks between countries remain fragmented. The results of this study provide a comprehensive overview of the scientific landscape of adaptive rice research and climate strategies. These findings can be used to strengthen global collaboration, guide future research agendas, and support sustainable agricultural adaptation policies.
Mandailing-based character education through the MERDEKA framework in Muhammadiyah schools Hasibuan, Nikmah; Afifah, Nur; Nanda; Azelia, Cindy; Hutabarat, Anis Pitria
Indonesian Journal of Educational Development (IJED) Vol. 6 No. 3 (2025): November 2025
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) Universitas PGRI Mahadewa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59672/ijed.v6i3.5094

Abstract

Character education based on local wisdom is a crucial strategy for shaping the identity and morality of the younger generation in a culturally relevant manner. This study aims to develop and evaluate a character education model grounded in Mandailing culture through an innovative approach conceptualised in the MERDEKA framework (Marsali, Mangupa, Dalihan na Tolu, Cerita Rakyat, Marsialap Ari, Gordang Sambilan, and Maronang-onang). The research employed a descriptive quantitative approach with multistage sampling, involving 100 students from three Muhammadiyah high schools in the South Tapanuli region: 50 from SMA Muhammadiyah 11 Padangsidimpuan, 25 from Mandailing Natal, and 25 from South Tapanuli. Data were collected using a validated and reliable questionnaire instrument (α = 0.842). The findings indicate a high level of internalisation of Mandailing cultural values among students, with significant regional differences based on ANOVA results (p < 0.05). The MERDEKA model is considered effective in facilitating character learning that is reflective, collaborative, and contextual. This study offers a theoretical contribution to the development of local wisdom-based character education models and provides practical recommendations for schools to implement culturally rooted character education.
Analisis Pengaruh Faktor Makro dan Faktor Murni terhadap Kinerja Keuangan melalui Kebijakan Perusahaan dan Kualitas Laporan Keuangan pada Perusahaan Sektor Logam yang Terdaftar di Bursa Efek Indonesia Nanda; Hwihanus
Sinergi : Jurnal Ilmiah Multidisiplin Vol. 1 No. 2 (2025): Sinergi: Jurnal Ilmiah Multidisiplin
Publisher : PT. AHLAL PUBLISHER NUSANTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the influence of macro factors and pure factors on the financial performance of companies in the metal sector listed on the Indonesia Stock Exchange during the 2020–2024 period, both directly and through mediating variables in the form of corporate policies and financial reporting quality. Macro factors are proxied by COGS ratio, inventory ratio, and trade payable ratio, while pure factors are measured through firm size, debt ratio, and working capital ratio. Corporate policies are proxied by DER, cash ratio, and fixed asset ratio, and financial reporting quality is measured through total accruals, audit quality, and current ratio. Financial performance is measured using ROA, GPM, and OPM. Keywords: Macro Factors, Firm-Specific Factors, Financial Performance, Corporate Policy, Financial Reporting Quality.   Abstrak Penelitian ini bertujuan untuk menganalisis pengaruh faktor makro dan faktor murni terhadap kinerja keuangan perusahaan sektor logam yang terdaftar di Bursa Efek Indonesia periode 2020–2024, baik secara langsung maupun melalui variabel mediasi berupa kebijakan perusahaan dan kualitas laporan keuangan. Variabel faktor makro diproksikan dengan rasio COGS, inventory ratio, dan trade payable ratio, sedangkan faktor murni diukur melalui firm size, debt ratio, dan working capital ratio. Kebijakan perusahaan diproksikan dengan DER, cash ratio, dan fixed asset ratio, serta kualitas laporan keuangan diukur melalui total accruals, audit quality, dan current ratio. Kinerja keuangan diukur menggunakan ROA, GPM, dan OPM. Kata kunci: Faktor Makro, Faktor Murni, Kinerja Keuangan, Kebijakan Perusahaan, Kualitas Laporan Keuangan
Co-Authors Afdhal Kurniawan Mainil Amelia Yuliana Andi Putri Sari Andini Sudarmin Apriliani, Ardini Astrini Eka Putri Azelia, Cindy Dea Deded Eka Sahputra Defrizal Della Hendra Desty Ebni Umar Elfrida, Yulia Eva Listiani, Marissa Harahap, Darmadi Erwin Hasibuan, Nikmah Hasibuan, Nikmah Sari Hesti Arini Hutabarat, Anis Pitria Hwihanus Imani, Rafki Luky Wahyu Sipahutar Maria Sentana, Ria Maria Ulfa Maulina Mayesi Mayozzi Chairi Muh. Darwis Muhammad Afif Mukhlis Mutmainna Nurul Damri Nasruddin Nasution, Fery Endang Nita Nur Ilmi Nurbaity Nurul Iman Supardi Pandu Dipa Nusantara Rafiqah Amanda Lubis, Rafiqah Amanda Rahma Ashari Hamzah Rama Dandi Randi, Randi Rina Lorensa Risma Fitri Answafil Rohani Rudianto Septiani, Mawar Siregar, Macrani Adi Putri Untari Anggeni Winata, Alben Sindhu