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Pengaruh Aplikasi (Napthalene Acetic Acid) dan Lama Perendaman Terhadap Pertumbuhan Awal Bibit Bud Set Tebu (Saccharum Officinarum L.)
Get PDFThe problem with cultivating the sugarcane bud set technique is how to stimulate the rapid formation of roots and shoots. The effort that can be made is by providing growth regulators. This research aims to determine the interaction between giving NAA concentration (Napthalene Acetic Acid) and soaking time on the initial growth of sugarcane bud set seedlings. This research was conducted using a Completely Randomised Factorial Design with two factors. Factor I is the NAA concentration, which consists of four levels: zero ppm (A1), 50 ppm (A2), 100 ppm (A3), and 150 ppm (A4). Factor II is the length of soaking, which consists of four levels: 0 minutes (S1), 20 minutes (S2), 40 minutes (S3), and 60 minutes (S4). The research results showed that (1) there was an interaction between NAA concentration and soaking time, which had a significant effect on the number of leaves. The best treatment combination is an NAA concentration of 50 ppm (A2) and a soaking time of 20 minutes (S2). (2) The NAA concentration has no significant effect on any of the observed variables. (3) Soaking time has a significant effect on root volume, with the optimal treatment being 20 minutes of soaking time (S2).The problem that exists in cultivating the sugarcane bud set technique is how to stimulate the formation of roots and shoots quickly. The effort that can be done is by providing growth regulators.This research aims to determine the interaction between giving NAA concentration (Napthalene Acetic Acid) and soaking time on the initial growth of sugarcane bud set seedlings.This research was prepared using a Completely Randomized Factorial Design with 2 factors. Factor I is the NAA concentration which consists of four levels, namely 0 ppm (A1), 50 ppm (A2), 100 ppm (A3) and 150 ppm (A4). Factor II is the length of soaking which consists of four levels, namely 0 minutes (S1), 20 minutes (S2), 40 minutes (S3) and 60 minutes (S4). The research results showed (1) There was an interaction between NAA concentration and soaking time, which had a significant effect on the number of leaves. The best treatment combination is an NAA concentration of 50 ppm (A2) and a soaking time of 20 minutes (S2). (2) NAA concentration has no significant effect on all observed variables. (3) Soaking time has a significant effect on root volume with the best treatment, namely 20 minutes of soaking time (S2)
Eksplorasi Tumbuhan yang Berpotensi Sebagai Pestisida Nabati di Kawasan Savana dan Hutan Musim Taman Nasional Baluran
Get PDFIndonesia has a very high plant diversity, with potential for bio-pesticides among these plants. Baluran National Park is a location that potentially boasts a high level of plant diversity. This study explores the potential of plants as natural pesticides in the savanna Bekol and Musim forest of Baluran National Park. The research employed an exploratory descriptive method. The data collection was conducted through observation and documentation. A total of 54 species from 28 plant families were successfully identified. Twenty-three species from 13 families have the potential to be used as biopesticides. Fourteen species were found in the Bekol savanna, and 10 species were found in the Musim forest. Pesticide plants are most commonly found in the Fabaceae family. These plants contain various compounds that offer potential for controlling plant pests. Active compounds found in these plants, including alkaloids, flavonoids, and saponins, were highlighted as potential biopesticides. The research also emphasized the negative environmental impact of chemical pesticides and the potential of plant-based pesticides as an alternative. The findings offer valuable insights into the use of natural pesticides in modern agriculture. Penelitian ini bertujuan untuk mengeksplorasi potensi tumbuhan sebagai pestisida alami di Hutan Savana Bekol dan Musim Taman Nasional Baluran. Penelitian ini melibatkan eksplorasi langsung di area tersebut, sehingga teridentifikasi 20-30 tanaman yang berpotensi sebagai pestisida alami. Penelitian ini berfokus pada efektivitas ekstrak tumbuhan dalam mengendalikan hama seperti nyamuk, serangga, dan jamur. Senyawa aktif yang terdapat pada tanaman tersebut, antara lain alkaloid, flavonoid, dan saponin, diduga berpotensi menjadi biopestisida. Penelitian ini juga menekankan dampak negatif pestisida kimia terhadap lingkungan dan potensi pestisida nabati sebagai alternatif. Temuan ini memberikan wawasan berharga mengenai penggunaan pestisida alami dalam pertanian modern
Pengaruh Pertumbuhan Stek Batang Gempol (Nauclea orientalis L.) dengan Konsentrasi Variasi IBA dan Media Tanaman
Get PDFThe Gempol plant (Nauclea orientalis L.) is a plant that offers economic benefits, particularly in the wood management industry. Plant stems are one of the primary vegetative growth structures in plants. The growth factor IBA is a growth stimulant in the auxin group. The planting media used include soil, sand, and compost. This study aims to investigate the growth process of Nauclea orientalis L. stems in response to variations in IBA solution concentrations and different plant media. This study uses experimental methods with random group designs. The research activities include preparing plant media, setting up the house, preparing other ingredients, planting, and maintaining the plants. Data is analyzed using variance analysis at a 95% confidence level. Variations in response to gempol growth showed that growth development at 60 days after planting yielded different average results for the number of shoots, root length, number of leaves, leaf length, base weight, and plant dry weight. The highest average number of shoots is achieved with the combination of L3M2 and 5.3 tunas. The highest average yield of tunas was in the L3M4 combination, with 19.3 leaves. The average root length yield with the highest value is achieved with the L2M3 combination, at 20.5 cm. The result of leaf length growth has the highest average in the L0M1 combination, with a value of 21.5 cm.Tanaman gempol (Nauclea orientalis L) sebagai tanaman yang mempunyai manfaat ekonomi seperti kebutuhan akan industri pengelolaan kayu. Stek batang tanaman merupakan salah satu pertumbuhan tanaman secara vegetatif. Zat perangsang tumbuh IBA sebagai perangsang tumbuh yang termasuk dalam kelompok auksin. Media tumbuh yang baik untuk budidaya tanaman adalah media menunjang pertumbuhan dan perkembangan akar serta mencukupi kebutuhan tanaman akan air dan unsur hara seperti tanah, pasir dan kompas. Penelitian ini untuk mengetahui proses pertumbuhan stek batang Nauclea orientalis L pada variasi konsentrasi larutan IBA dan media tanam yang berbeda. Penelitian ini menggunakan metode eksperimental dengan rancangan acak kelompok. Kegiatan pelaksanaan penelitian ini meliputi persiapan media tanam, penyediaan rumah sungkup, persiapan penyetekan pembuatan takaran larutan IBA, penanaman stek, dan pemeliharaan. Pengaruh pertumbuhan stek Nauclea orientalis L dinilai dari: Jumlah tunas, jumlah daun, panjang daun, panjang akar, berat basah dan berat kering. Data yang diperoleh dianalisis menggunakan analisis ragam pada taraf kepercayaan 95%. Variasi respon pertumbuhan gempol menunjukan bahwa perkembangan pertumbuhan pada 60 hari setelah tanam menunjukan hasil rata-rata yang berbeda terhadap jumlah tunas, jumlah dauh, panjang akar, panjang daun, berat basah dan berat kering tanaman dengan. Rata-rata jumlah tunas yang tertinggi adalah kombinasi L3M2 dengan 5,3 tunas. Pada hasil rata-rata jumlah tunas tertinggi pada kombinasi L3M4 dengan total 19,3 helai daun. Untuk hasil rata-rata dari panjang akar yang memiliki nilai tertinggi adalah kombinasi L2M3 dengan nilai rata-rata 20,5 cm. hasil pertumbuhan panjang daun memiliki rata-rata tertinggi dapat pada kombinasi L0M1 dengan nilai 21,5 cm
THE CHANGE IN SOUTH KOREA\u27S FOREIGN POLICY TOWARDS ASEAN COUNTRIES THROUGH THE NEW SOUTHERN POLICY PLUS
Get PDFThis study identifies the factors influencing the evolution of South Korea\u27s foreign policy towards ASEAN through the New Southern Policy Plus (NSPP). Despite the initial New Southern Policy\u27s (NSP) successes, the Moon Jae-in administration introduced seven new initiatives for more focused cooperation. Employing foreign policy change theories, this research argues that the shift was driven by both international and domestic factors. Internationally, the Covid-19 pandemic presented strategic opportunities for South Korea to deepen its engagement with ASEAN. Domestically, liberal political leadership and policy entrepreneurs likely aligned internal preferences with the NSPP\u27s objectives. Utilizing secondary data, the study concludes that these modifications represent \u27adjustment change\u27 and \u27program change.\u27 This indicates a shift in implementation strategies to better suit the changing regional context, without altering the fundamental goals of the original policy
Hibriditas Budaya dalam Fandom K-Pop: Konstruksi Identitas Kolektif Penggemar di Era Digital Indonesia
Get PDFFenomena K-Pop telah berkembang menjadi bagian penting dari budaya populer global, termasuk di Indonesia. Penelitian ini bertujuan untuk menganalisis peran budaya K-Pop dalam membentuk identitas kolektif di kalangan penggemarnya di Indonesia. Menggunakan kajian teoritis dan analisis literatur, penelitian ini mengeksplorasi bagaimana budaya K-Pop diterima, diadaptasi, dan diintegrasikan ke dalam kehidupan penggemar, sekaligus menciptakan ruang untuk solidaritas dan interaksi sosial. Hasil pembahasan menunjukkan bahwa budaya K-Pop tidak hanya berfungsi sebagai media hiburan, tetapi juga sebagai instrumen globalisasi yang menghasilkan hibriditas budaya. Identitas kolektif penggemar terbentuk melalui nilai-nilai yang ditawarkan oleh budaya K-Pop, seperti solidaritas komunitas dan pengaruh estetika budaya Korea yang disesuaikan ke dalam konteks lokal. Penelitian ini memperluas pemahaman tentang dinamika budaya populer di era globalisasi serta dampaknya terhadap identitas sosial di Indonesia.
 
Analysis of Bound Carbon Content and Combustion Rate of Banana Peel Waste Biobriquettes
Get PDFThis study aims to analyze the fixed carbon content and combustion rate of briquettes made from banana peel waste as a renewable energy alternative. The experimental method was used, involving key stages such as material preparation, carbonization process, briquette molding, and testing of fixed carbon content and combustion rate. The results showed that the fixed carbon content of the produced briquettes reached 87%, indicating good combustion quality and high energy storage capacity. Additionally, the combustion rate of the briquettes varied, with Sample A having a combustion rate of 0.017 grams/s and Sample B at 0.014 grams/s. This difference suggests that Sample B has a longer combustion duration. Thus, banana peel briquettes have the potential to be an efficient and environmentally friendly alternative fuel. Further research is needed to optimize the production process and enhance briquette efficiency
Evaluating Effectiveness, Relevance, and Endurance in a Solar-Powered DC Hands-On Activity Using Rasch Modeling
Get PDFRenewable Energy based Hands-on experimental kits are essential for enhancing student engagement and conceptual understanding in physics education. This study evaluates the feasibility of a Solar-Powered Direct Current (SP-DC) experimental kit, focusing on its effectiveness, relevance, and endurance as perceived by users. A quantitative design was employed using a closed-ended questionnaire comprising 14 items. Participants (n=79) consisted of undergraduate students from Universitas Kristen Indonesia (n=36) and high school students from SMA N 11 Jakarta (n=43). Prior to completing the questionnaire, students engaged in assembling the SP-DC kit and measuring current and voltage. Data were collected between June 2022 and June 2023 and analyzed using the Rasch model through Winstep version 5.9.00. Fit validity was determined by item and person statistics (MNSQ, ZSTD, PTMEA), while descriptive analysis included item measures and score distributions. Findings confirmed that all questionnaire items met Rasch model validity criteria, with PTMEA correlations above 0.7. In terms of effectiveness, participants reported favorable perceptions of ease of use and assembly, though aspects such as portability and storage required improvement. Relevance was demonstrated through the kit’s role in supporting understanding of series and parallel circuits, motivating interest in renewable energy, and strengthening connections between theory and practice. Endurance analysis revealed that the kit was generally durable and safe, though operational robustness could be enhanced. The SP-DC experimental kit is a feasible educational tool that supports effectiveness, curricular relevance, and endurance. These results suggest the kit’s potential for broader application in both secondary and higher education
TEACHER ROTATION FOR CIVIL SERVANTS IN SOUTH KALIMANTAN PROVINCE ROTASI GURU PEGAWAI NEGERI SIPIL DI PROVINSI KALIMANTAN SELATAN
Get PDFThe policy of rotating Civil Servant (PNS) teachers in South Kalimantan Province was introduced to address the urgent need for a more balanced distribution of educators, especially given the disparities between urban and remote regions. This study seeks to assess both the effectiveness and the implementation of the rotation policy within the provincial government using a descriptive qualitative method and the CIPP (Context, Input, Process, Product) evaluation framework. Data collection involved in-depth interviews, observations, and document analysis, while data were analyzed using Creswell’s techniques with the aid of NVivo15 software. The findings reveal that the implementation of teacher rotation in South Kalimantan still encounters significant challenges, such as inconsistencies between Dapodik and Simpeg staffing databases, a shortage of replacement teachers particularly in remote locations and the influence of vested interests that undermine merit-based principles. Most rotation applications are driven by personal reasons, including residence and family considerations, with only a few aimed at refreshing placements. These results indicate that the objective of achieving equitable teacher distribution has not been fully realized, as ASN teachers remain concentrated in urban areas. Thus, there is a pressing need to strengthen governance, harmonize personnel data systems, and ensure more transparent oversight, so that the rotation policy can effectively promote equitable teacher distribution and enhance the quality of education across South Kalimantan
The Success of Implementing Congklak 4.0 Based on RME to Enhance Numeracy Literacy and Mathematical Concept Understanding of Elementary School
No full textThis study aims to examine the success of implementing Congklak 4.0, a digital transformation of the traditional Congklak game, as a learning medium based on the Realistic Mathematics Education (RME) approach to improve numeracy literacy and mathematical concept understanding of elementary school students. The research employed a quasi-experimental design involving 62 students from two elementary schools in Malang, Indonesia, divided into experimental and control groups. Data were collected through pretest and posttest instruments on numeracy literacy and conceptual understanding, supported by student response questionnaires. The results showed a significant improvement in the experimental group using Congklak 4.0 compared to the control group, with an average N-Gain of 0.67 (moderate to high category) for numeracy literacy and 0.71 (high category) for conceptual understanding. In addition, 87% of students expressed positive responses to the integration of Congklak 4.0 in mathematics learning, highlighting increased motivation and engagement. These findings indicate that Congklak 4.0 not only preserves cultural heritage by digitalizing a traditional game but also provides an effective, interactive, and enjoyable tool for mathematics learning. The study suggests that integrating digital traditional games with RME can be an innovative strategy to support numeracy literacy improvement programs in elementary schools
The Use of Instagram in Learning Voltaic Cells through Small-Scale Chemistry Practicum: A Needs Analysis
Get PDFThe development of social media opens new opportunities for innovation in learning, particularly in chemistry subjects. Instagram, as one of the most popular platforms, holds great potential to be used as a learning medium because it is easily accessible and capable of presenting engaging visual content. The small-scale chemistry (SSC) ethnoscience-based practicum approach is considered effective in overcoming the limitations of school laboratory facilities by using fewer chemicals, being cost-efficient, safe, and environmentally friendly. The voltaic cell, as one of the electrochemistry topics, is still often perceived as difficult for students to understand if taught only theoretically, thus requiring more practical and relevant learning media. This study aims to analyze the need for integrating Instagram into small-scale chemistry practicum on the topic of voltaic cells. The method employed was a descriptive survey by distributing questionnaires to students and chemistry teachers in several senior high schools in Kepanjen Regency. The results indicate that students found Instagram helpful for discussions and independent learning, while teachers considered SSC effective in reducing challenges related to costs, waste, and limited facilities. The majority of respondents supported the development of SSC-based learning media integrated with Instagram to improve students’ understanding of the voltaic cell concept