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Dwi Agus Kurniawan
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Jurnal Ilmiah Ilmu Terapan Universitas Jambi
Published by Universitas Jambi
ISSN : 25802240     EISSN : 25802259     DOI : https://doi.org/10.22437/jiituj.v6i2
Core Subject : Education, Engineering,
Education Engineering Industrial & Manufacturing Engineering
JIITUJ publish the result of research on applied science and education (Research of applied science and education) such as: the research result on applied science and education such as curriculum development and learning, character education, technology and instructional innovation, and learning evaluation. the research result on applied science and technology such as the development of applied technology and applied arts, appropriate technology, designing information systems, the research result on applied science and economic development the research result on applied science and public health. JIITUJ is a double-blind peer-reviewed journal, published three (3) times a year by Research Institutions and Community Service (LPPM), Universitas Jambi, Indonesia. JIITUJ is open to academic circles and university researchers, research institutes, librarians, graduate and postgraduate students to share information on research results.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 340 Documents
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MAPPING STUDENTS' THINKING SYSTEMS IN CRITICAL THINKING BASED ON STEM PROJECT-BASED LEARNING EXPERIENCES Nehru, Nehru; Purwaningsih, Sri; Riantoni, Cicyn; Ropawandi, Doni; Novallyan, Devie
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32027

Abstract

Critical thinking is an essential skill for students to develop. The objective of this research is to map students' thinking systems in critical thinking based on STEM project-based learning experiences. The method used is a mixed-method approach with an Embedded Experimental Model. The research subjects are undergraduate students in basic physics at the University of Jambi. Data collection is conducted through tests and interviews. The test instrument employs structured critical thinking questions based on the Halpern Critical Thinking Assessment (HCTA) indicators, while the interview instrument utilizes open-ended questions. Data analysis utilizes paired t-tests and coding to map students' thinking systems. The research results indicate an influence of STEM-PjBL learning on students' critical thinking abilities, supported by the analysis showing a moderate increase in students' critical thinking abilities. Additionally, based on mapping students' thinking systems, there is an increase in thinking system 2 by 56 answers. Moreover, thinking system 2 is nearly equivalent to thinking system 1 except in reasoning. In the fourth question and other aspects of critical thinking abilities, thinking system 2 is comparable to thinking system 1 and even more dominant in question number 3. This demonstrates an enhancement in students' critical thinking abilities after STEM project-based learning. This research provides new insights into the development of student's critical thinking skills, which can be beneficial for curriculum development and teaching practices in the STEM education field.
AN ANALYSIS OF THE APPLICATION OF PROBLEM BASED LEARNING (PBL) MODEL IN MATHEMATICS FOR ELEMENTARY SCHOOL STUDENTS Sarnoko, Sarnoko; Asrowi, Asrowi; Gunarhadi, Gunarhadi; Usodo, Budi
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32057

Abstract

The problem-based learning model remains an innovative model that is often implemented for learning in the 21st century, as an effort to achieve students' soft skill competencies. Therefore, the purpose of this study is to identify the necessary learning model in Mathematics at Girimarto District Elementary Schools and to analyze the application of the problem-based learning model at these schools. This research is classified as descriptive quantitative research, and it involves a random sample of 106 students and 10 elementary school teachers in the Girimarto area. The data collection technique used is non-test, specifically through the use of questionnaires. The data obtained from the questionnaires are analyzed descriptively using percentages to depict the research findings. The study highlighted a suboptimal implementation of the Problem-Based Learning (PBL) model in Girimarto District, with only 44.94% of the sample demonstrating mastery of critical thinking, 35.67% exhibiting creative reasoning, and 25.09% performing analytical thinking. This indicates a lack of High Order Thinking Skills (HOTS)-based learning among teachers. Various obstacles were identified, including student passivity, fear, and unfamiliarity with the PBL model. Interviews and observations further revealed that many teachers had not fully grasped the concept of PBL. The study emphasizes the need to address these obstacles to enhance PBL implementation and improve Mathematics learning outcomes in Girimarto District Elementary Schools. The implications of these findings underscore the necessity of addressing these barriers to enhance the implementation of PBL and improve Mathematics learning outcomes in Girimarto Elementary School.
WAVELENGTH OF THE He-Ne LASER BY USING TWO TYPES OF DIAPHRAGM DIFFRACTION METHODS Purwaningsih, Sri; Falah, Hebat Shidow; Lestari, Neneng; Sitinjak, Hardiantinus; Mousa, Almahdi
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32058

Abstract

Light diffraction, characterized by the spreading or bending of waves when encountering narrow obstacles, forms the focal point of this research endeavor. Utilizing the circular diffraction method, this study pioneers the identification of the He-Ne laser wavelength through experimentation with both three and five-slit diaphragms. The investigation with a three-slit diaphragm involves three variations in slit distances: d = 0.125 mm, 0.25 mm, and 0.5 mm at a screen distance of 150 nm, revealing diffraction patterns across three orders of magnitude. For the five-slit diaphragm, the analysis extends to a slit distance of d = 0.25 nm and a layer distance of 320 nm. Interestingly, the results reveal that the wavelength spectrum of the He-Ne laser depends on the variation of the gap distance. Remarkably, a gap distance as minimal as 0.25 nm yields wavelengths within the range of 641 nm to 660.67 nm, highlighting the diffraction process's sensitivity to minute variations in experimental parameters. This groundbreaking research not only elucidates the intricate interplay between light diffraction and experimental configurations but also underscores the circular diffraction method's versatility in determining the fundamental properties of laser light. This study paves the way for advancements in optical instrumentation and characterization techniques by offering novel insights into wavelength determination methodologies. These findings have far-reaching implications across diverse scientific disciplines, including physics, materials science, and optical engineering, enhancing the precision and capability of optical measurement technologies.
MEASURING THE SUSTAINABILITY OF RED CHILI AGRIBUSINESS SYSTEM IN NORTH SUMATERA PROVINCE, INDONESIA Novita, Desi; Supriana, Tavi; Sirozujilam, Sirozujilam; Lubis, Satia Negara
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

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

Abstract

Sustainable agriculture is an important factor in preserving sustainable development in an area. Red chili is a commodity that has a strategic role in the agricultural sector. This research aims to measure the endemic index in the red chili agribusiness system in North Sumatera Province. Data collection was carried out through in-depth interviews involving farmers, marketers, extension workers, and local governments using five dimensions of climbing. The data analysis method used was Multi-Dimensional Scaling (MDS), called RAP-Chili (Rapid Appraisal for Chili). The results show that the combined index for the red chili agribusiness system in this province is quite sustainable, with an index value of 58.94. Only one dimension is included in the high desire index level (78.35), namely the environmental dimension. Meanwhile, the other four dimensions are at the level of the quite desirable category, namely the economic dimension (52.82), the socio-cultural dimension (57.30), the partnership dimension (54.24), and the institutional dimension (51.98). Overall performance can be improved by making improvements in each dimension. Therefore, policy planning for developing the red chili agribusiness system must improve weak indicators and impact existing dimensions. Environmental aspects regarding land suitability, climate, and fertility must continue to be improved, considering that agriculture in Indonesia is still very dependent on natural resource factors.
PUMAKKAL FORMULA FOR MAKING SHRIMP POND WASTE FERTILISER Agus Sutanto; Kartika Sari; Handoko Santoso; Hening Widowati; Hasminar Rachman Fidiastuti; Yaya Rukayadi
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32094

Abstract

One way to decompose pond waste sediment is by using the liquid nutrient culture media (NB) called Pumakkal as a starter formula. However, bioremediation in shrimp ponds has received less attention, despite being massively promoted by the government. East Lampung has produced 11.6 million m3 of liquid and 4.077 m3 of sediment waste in shrimp ponds. They are rich in organic matter, but possibly poison the pond if uncurbed. This study investigated in what manner Pumakkal decomposed shrimp pond waste under three parameters: macronutrient and micronutrient contents, and pH. The experiment was conducted using a completely randomised design (CRD) with 15 factorial arrangements. The sample was 65 kg of shrimp pond waste and 65 litres of liquid waste, which were analysed with five treatments: three of liquid waste media (LW), sediment waste (SW), and mixed liquid and sediment waste (MLS). The results showed that the treatment of the CE 15-isolate in MLS significantly improved the fertiliser quality (p<0.05). Pumakkal CE worked the finest in MLS, producing the fertiliser with the best macronutrients: Nitrogen (N) 1,3%, Phosphorus (P)2,3%, and Potassium (K) 2,3%; C-organic 23%, C/N ratio 29; micronutrient: Fe:155 ppm, Cu: 51 ppm, Zn: 72 ppm, Mn; 51 ppm, B; 25 ppm, and Mo: 8 ppm, and pH 5-6. The mixture of liquid and pond sediment waste produces the best fertiliser suitable for plant fertiliser users. The study concludes that Pumakkal is effective in decomposing harmful waste sediment to support the bioremediation program.
DISTANCE E-LEARNING AND ITS IMPACT ON UNIVERSITY EDUCATION OUTCOMES FROM THE STUDENTS’ POINT OF VIEW AL-Momani, Mohammad Omar; AL-Momani, Manal Abdul Karim; Hamadat, Mohammad Hasan; Murtada, Mariam Ayed
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32116

Abstract

This pioneering study aimed to unravel the nuanced impact of distance e-learning on the outcomes of university education, specifically gauging the perspectives of Jordanian university students while considering the variables of gender and academic year. Employing a multifaceted methodology, the research adopted a descriptive approach augmented by an electronically distributed questionnaire, meticulously tailored to assess students' perceptions. A diverse cohort of 1,000 male and female students, selected through a rigorous random sampling method, participated in the study during the inaugural semester of the 2023/2024 academic year. Results unveiled a strikingly high perceived impact of distance e-learning on university education outcomes, with an average score of 3.70 and a standard deviation of 0.62, indicative of a robust consensus among students. Intriguingly, while concerns regarding the negatives of e-learning dominated discourse, the positives of distance education also garnered substantial recognition, albeit ranking slightly lower. Furthermore, the field of outcomes of distance e-learning emerged with a moderate degree of impact, underscoring the multifaceted nature of its influence. Notably, statistical analysis revealed no discernible differences in perceptions across gender or academic year cohorts, suggesting a uniform perspective on the efficacy of distance e-learning among Jordanian university students. These findings not only enrich scholarly discourse but also offer valuable insights for educational policymakers and practitioners seeking to optimize the integration of e-learning modalities in university settings.
EMPLOYEE SATISFACTION, ENGAGEMENT AND FINANCIAL PERFORMANCE IN STOCK BROKERAGE COMPANIES Mo, Nguyen Thi; Binh, Nguyen Thanh; Nhung, Le Thi; Hung, Pham Huy; Cu, Hoang Manh; Linh, Nguyen Thuy; Hai, Tran Van
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32199

Abstract

In the context of human resources in the securities industry being depleted after the Covid-19 pandemic, with strong fluctuations and many risks, maintaining and improving the quality of human resources to meet the, an urgent new development stage for the sustainable development of securities companies. Recent studies around the world to meet the needs of workers mostly focus on fields such as banking, manufacturing, etc. The results show that leadership style or salary has a direct impact on meeting the needs of workers. However, the securities industry with young human resources in developing countries like Vietnam has its own differences. The goal of the study is to clarify the relationship between satisfaction, engagement and financial performance in securities companies in Vietnam after the Covid-19 pandemic. Sample data was collected online by the authors from 225 employees working at securities companies in Vietnam, in the period from September 2023 to December 2023. Using quantitative research on the PLS-SEM linear structural model on SPSS 20 and AMOS 20 software, the results show that securities employees are not really satisfied with their current job, identifying 2 factors. Factors that have a strong influence on the financial performance of securities companies include: (1) Training and advancement and (2) Working environment. This is consistent with the characteristics of securities human resources in Vietnam. The study adds to the understanding of meeting employee needs through training and improving the work environment, which in turn will improve a company's financial performance.
CITIZEN SCIENCE PROJECT DESIGN FOR ECOLOGY COURSE: REDUCING POLLUTION CAUSED BY GOLD MINING Susbiyanto, Susbiyanto; Hidayat, Topik; Surtikanti, Hertien Koosbandiah; Riandi, Riandi
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32348

Abstract

The article aims to provide an overview of designing a citizen science project in ecological learning, focusing on the case of gold mining pollution in the Batanghari River area. This research employed a qualitative method, non-interactive type with the approach used being concept analytical. The design of the citizen science project is conducted through a sequential cycle with its main components including: identifying the need or problem, determining if citizen science is the right approach, designing the project, building the community, managing the data, and evaluating the project. This project design illustrates an organized method of citizen science in ecological learning that is customized to the gold mining area. The contribution of participants is very important to emphasise at every activity in the project design, therefore the development of activities in this project refers to the logic model. The type of project relevant to the issue raised is to assess the potential or ecological status of the Batanghari River through the measurement of biological quality elements, physico-chemical elements, and hydromorphological quality elements, referring to the European Environment Agency standards. The design incorporates two distinct components: a collaborative project model and a framework based on research, both of which are arranged into mini-project activities. As a result, the project will contribute to improving students' skills in monitoring and collaborating with communities, as well as accommodating ecological learning activities intended as actions to help mitigate the problem of pollution due to gold mining in the Batanghari River.
ORGANISATIONAL SUPPORT AND TEACHERS' ENGAGEMENT FOR PROFESSIONAL DEVELOPMENT IN SECONDARY SCHOOLS OF NEPAL Tamang, Sushma; Mishra, Anjay Kumar; Ghosh, Abhijit; Bhaumik, Amiya
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 2 (2024): Volume 8, Nomor 2, December 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i2.32414

Abstract

The teacher professional development program in Nepal is an ambitious initiative designed to support teachers' professional growth. Organizational support and teacher engagement are of the utmost importance to ensure professional development. This study signifies the role of organizational support in enabling professional development and engaging teachers in teacher growth and development. This study aims to propose and rest an integrative model that views organizational supoort practices as a synergistic component that influences the sustainbility of teacher engagement. Survey-based cross-sectional data were collected from secondary schools in Kathmandu Valley using a structured questionnaire to teachers for this non-experimental correlational research design. Likert scales were used to express the perception-based data quantitatively and analyzed using regression models. This study confirms that organizational support procedures strongly influence professional development, highlighting organizational support as a moderator between teacher engagement and professional development. Organizational support also contributes to improving organizational performance. These practices are standard in Nepal schools but at a moderate level. However, schools are run for the benefit of one person only, so schools must be institutionalized with standard norms and values of participatory practices.
GENERIC SCIENCE SKILLS: PHET APPLICATIONS BASED ON DISCOVERY LEARNING Haryanto, Haryanto; Asrial, Asrial; Sanova, Aulia; Widowati, Atri; Saputra, Adhe
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 8 No. 1 (2024): Volume 8, Nomor 1, June 2024
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v8i1.32441

Abstract

This pioneering research embarks on an ambitious quest to assess the conceptual, procedural feasibility, and efficacy of a groundbreaking educational intervention, the Discovery Learning model teaching module infused with the innovative PhET application aimed at enhancing students' generic skills proficiency in the domain of chemistry. In a departure from conventional methodologies, this study employs a rigorous Research and Development (R&D) framework underpinned by the renowned 4-D Model to craft and validate this transformative pedagogical tool meticulously. The research cohort comprises high school students and chemistry educators poised at the vanguard of educational innovation. Employing a meticulously designed set of validation and response questionnaires, the study harnesses the power of descriptive and inferential statistics to glean profound insights into the impact of the intervention. The findings illuminate a resounding success: the Discovery Learning model teaching module, seamlessly integrated with the PhET application, exhibits exceptional validity and practicality and yields tangible improvements in students' generic chemistry science skills. Moreover, the overwhelmingly positive feedback from both educators and students, coupled with discernible disparities in responses between the experimental and control groups, underscores the transformative potential of this cutting-edge educational tool. This research's novelty lies in its pioneering development and validation of a PhET application-based Discovery Learning module, heralding a paradigm shift in secondary school chemistry education with the promise of fostering a new generation of scientifically literate and adept learners primed to navigate the complexities of the modern world.

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