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MARINE CAPTURE FISHERIES POLICY FORMULATION AND THE ROLE OF MARINE PROTECTED AREAS AS TOOL FOR FISHERIES MANAGEMENT IN INDONESIA Wiadnya, D. G.R.; Mous, P. J.; Djohani, R.; Erdmann, M. V.; Halim, A.; Knight, M.; Pet-Soede, L.; Pet, J. S.
Marine Research in Indonesia Vol 30 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

The FAO Code of Conduct for Responsible Fisheries states that conservation and management decisions for fisheries should be based on the best scientific evidence available. Studies show that most of Indonesias capture fisheries are either full or over-exploited. However, the fishery sector is still expected to contribute to the increase of Indonesias GNP through an increase in total catches. Furthermore, the current practice of using catch-effort data and Maximum Sustainable Yield models to inform Indonesiaâs fisheries policies is flawed, putting sustainability and long-term profitability of Indonesias fisheries at risk. In this paper, the authors argue that to ensure the survival of Indonesias fish stocks and fisheries: fisheries policy must shift from development-oriented management towards management for sustainability. Furthermore, fisheries managers must accept that untapped resources may not exist or cannot be exploited profitably, and that any transfer of fishing effort between fishing grounds may contribute to collapse of local fisheries. Also, fisheries managers should change the management paradigm from MSY models to eco-system based management, wherein Marine Protected Areas should play an important role.

MARINE CAPTURE FISHERIES POLICY FORMULATION AND THE ROLE OF MARINE PROTECTED AREAS AS TOOL FOR FISHERIES MANAGEMENT IN INDONESIA Wiadnya, D. G.R.; Mous, P. J.; Djohani, R.; Erdmann, M. V.; Halim, A.; Knight, M.; Pet-Soede, L.; Pet, J. S.
Marine Research in Indonesia Vol 30 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

The FAO Code of Conduct for Responsible Fisheries states that conservation and management decisions for fisheries should be based on the best scientific evidence available. Studies show that most of Indonesia's capture fisheries are either full or over-exploited. However, the fishery sector is still expected to contribute to the increase of Indonesia's GNP through an increase in total catches. Furthermore, the current practice of using catch-effort data and Maximum Sustainable Yield models to inform Indonesia?s fisheries policies is flawed, putting sustainability and long-term profitability of Indonesia's fisheries at risk. In this paper, the authors argue that to ensure the survival of Indonesia's fish stocks and fisheries: fisheries policy must shift from development-oriented management towards management for sustainability. Furthermore, fisheries managers must accept that 'untapped resources' may not exist or cannot be exploited profitably, and that any transfer of fishing effort between fishing grounds may contribute to collapse of local fisheries. Also, fisheries managers should change the management paradigm from MSY models to eco-system based management, wherein Marine Protected Areas should play an important role.

Impact of Using PhET and NI Multisim Simulation on Understanding Electrical Circuit Concepts Halim, A.; Alinda, Maiza; Mahzum, Elmi; Wahyuni, Agus; Ngadimin, Ngadimin
Jurnal Penelitian & Pengembangan Pendidikan Fisika Vol. 10 No. 1 (2024): JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika), Volume 10 Issue
Publisher : Program Studi Pendidikan Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/1.10114

The lack of physics practicum equipment in schools is one of the reasons why practicum activities are rarely carried out, so many students still do not understand the physics concepts being taught. Therefore, one of the aims of this study is to apply two types of virtual practical media (PhET and NI Multisin simulations) and assess their effectiveness. This research uses a quasi-experimental approach with a non-equivalent control group design. In other words, the study utilized two experimental groups and one control group. All students in class 12 of high school from five localities comprised the research population, and a purposive sampling technique randomly selected a sample of three classes. So we got a sample of class 12-1 science for experimental group 1, class 12-2 science for experimental group 2, and class 12-3 science for the control group. After the testing prerequisites were met, the independent sample t-test at a significance level of 0.05 was used for data analysis. According to the data analysis results, there are significant differences in conceptual understanding between students in the control class, PhET class, and NI Multisim class. The research concludes that lecturers or teachers wishing to conduct virtual practicums in physics learning should utilize the NI Multisim simulation due to its ease of use and its more suitable facilities for the topic under study.

Advancements in PET bottle plastic slitting devices for raw material 3D printing filament production Utama, D.W.; Hagai, H.; Halim, A.; Chan, G.
Dinamika Teknik Mesin Vol 15, No 1 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i1.988

The world is facing a significant environmental challenge due to the accumulation of plastic waste, especially PET (Polyethylene Terephthalate) bottles. Indonesia is no exception to this problem. Every year, millions of tons of PET bottles are produced, and most of them end up as waste that takes a long time to decompose. This study aims to investigate the technical and engineering aspects involved in creating a slitting device for PET bottle plastic, which will be used as raw material for Fused Deposition 3D printer filament. The research will focus on overcoming the challenges associated with producing consistent and high-quality raw materials filament and exploring innovative solutions and advancements in filament material design. The slitting device is designed to produce plastic strips with a consistent width of 10 mm and a tolerance of ±1 mm, using easily accessible cutting blades. Ensuring a consistent strip width is crucial for producing 3D printing raw material filament with a diameter of 1.75 mm and a tolerance of ±0.05 mm. Two versions of the slitting design, version 1 and version 2, were tested, and improvements were made to reduce friction and optimize cutting efficiency, resulting in consistent strip width. The second version performed better, producing longer, more uniform strips with lower pulling force. These strips are then proposed to be processed for 3D printing filament, demonstrating the potential of this tool to transform PET bottle waste into valuable raw materials

Voices from The Classroom : Teachersâ€™ and Studentsâ€™ Perceptions of Using SPS-Based Worksheets to Promote HOTS in Science Learning (A Needs Analysis) Widia, Syarifah; Evendi, Evendi; Halim, A.
Jurnal Kependidikan : Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran, dan Pembelajaran Vol. 11 No. 2 (2025): June
Publisher : LPPM Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jk.v11i2.15418

This study aims to analyze the needs for developing Student Worksheets that support Higher Order Thinking Skills (HOTS) and Science Process Skills (SPS) in science learning. A descriptive qualitative approach was employed in this study, where data were collected from 56 students and 3 science teachers across two schools in Banda Aceh, which were purposefully selected to examine the implementation of SPS-based worksheets in school located in the both urban and rural setting using structured questionnaires. The needs analysis was guided by the framework proposed by Hutchinson & Waters, focusing on three key elements: necessities, lacks, and wants. The findings indicate that both teachers and students recognize the importance of SPS-based worksheets in developing HOTS. Necessities include worksheets that support HOTS, especially in practical activities. However, there is a lack of SPS-based worksheets due to limited time and training and wants reflect teachers' strong desire for professional development to create such worksheets that can enhance students' HOTS. However, existing worksheets do not adequately address these needs, particularly in terms of contextualized problems, activity variation, and relevance to real-life situations. The study suggests that there is a pressing need to develop innovative, contextual worksheets integrated with problem-solving strategies. Such worksheets would not only support more meaningful learning but also challenge students cognitively, fostering skills that align with the demands of the 21st century.

Improving Students Ability to Evaluate and Conclude Through A Scientific Approach Syukri, Muhammad; Basri, Mahdalena; Halim, A.; Maghfirah, Siti
Current STEAM and Education Research Vol. 3 No. 1 (2025): Current STEAM and Education Research, Volume 3 Issue 1, April 2025
Publisher : MJI Publisher by PT Mitra Jurnal Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58797/cser.030101

This study aims to improve students' assessment and inference skills through the application of the scientific approach. The research was conducted with a pre-experimental design using the single group pretest-posttest method. The study population involved 85 students of class XI of SMAN 1 Blangpegayon, and 22 students of class XI science 2 were selected as samples using purposive sampling. Essay tests on sound waves were used to assess students' critical thinking skills through pretest and posttest. Data were analyzed using N-Gain test and paired sample t test. The results showed that students' evaluation ability had an N-Gain value of 0.97, while the ability to conclude reached 0.99, both of which were classified as high. Hypothesis testing showed a significant difference between pretest and posttest scores with a value of 0.001 <0.05, based on the paired sample t test. Thus, it can be said that employing a scientific approach to the learning process can enchance the capacity to evaluate and conclude students

Exploring the Impact of Self-Learning Campus Portals Using the Technology Acceptance Model Elisa; Susilawati; Muhajirs; Halim, A.; Farhan, A.; Mahzum, Elmi; Wahyuni, A.
Jurnal Penelitian dan Pengembangan Pendidikan Vol. 9 No. 2 (2025): July
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jppp.v9i2.93673

The low utilization of campus portals as a means of independent learning by students, even though the portal has been provided as part of the digitalization efforts of higher education. Therefore, it is necessary to explore further how various variables in the Technology Acceptance Model (TAM), such as perceived ease of use, perceived usefulness, attitude toward use, and intention to use, influence the level of acceptance and utilization of campus portals for independent learning. The Independent Campus Portal uses the variables Perceived Ease of Use (PEU), Perceived Usefulness (PU), Attitude Toward Using (ATU), Behavioral Intention to Use (BIU), and Actual System Use (ASU) by applying the Technology Acceptance Model (TAM). Data collection for this study was carried out using a questionnaire. The sample used was 61 students majoring in Physics Education. The statistical testing methods used were statistical tests for normality, homogeneity, validity, reliability, and hypothesis testing using the t-test with the SPSS program. The results of this study indicate that of the six hypotheses proposed, all six hypotheses were accepted and had a significant influence. This research demonstrates the need for improved system optimization and technical support services to enable the portal to function more effectively and efficiently in supporting the Independent Campus program. The implications of this research demonstrate the importance of developing and optimizing the campus portal as a self-directed learning tool that is responsive to the needs and perceptions of users, particularly students.

Advancements in PET bottle plastic slitting devices for raw material 3D printing filament production Utama, D.W.; Hagai, H.; Halim, A.; Chan, G.
Dinamika Teknik Mesin Vol 15, No 1 (2025): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v15i1.988

The world is facing a significant environmental challenge due to the accumulation of plastic waste, especially PET (Polyethylene Terephthalate) bottles. Indonesia is no exception to this problem. Every year, millions of tons of PET bottles are produced, and most of them end up as waste that takes a long time to decompose. This study aims to investigate the technical and engineering aspects involved in creating a slitting device for PET bottle plastic, which will be used as raw material for Fused Deposition 3D printer filament. The research will focus on overcoming the challenges associated with producing consistent and high-quality raw materials filament and exploring innovative solutions and advancements in filament material design. The slitting device is designed to produce plastic strips with a consistent width of 10 mm and a tolerance of ±1 mm, using easily accessible cutting blades. Ensuring a consistent strip width is crucial for producing 3D printing raw material filament with a diameter of 1.75 mm and a tolerance of ±0.05 mm. Two versions of the slitting design, version 1 and version 2, were tested, and improvements were made to reduce friction and optimize cutting efficiency, resulting in consistent strip width. The second version performed better, producing longer, more uniform strips with lower pulling force. These strips are then proposed to be processed for 3D printing filament, demonstrating the potential of this tool to transform PET bottle waste into valuable raw materials

Keterkaitan antara Miskonsepsi dan Kemampuan Literasi Sains Peserta Didik pada Materi Pemanasan Global Aini, Eva; Evendi, Evendi; Halim, A.; Syukri, M.; Yusrizal, Yusrizal
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.5156

This study aims to identify misconceptions experienced by students, the level of scientific literacy skills and the relationship between misconceptions and scientific literacy skills on global warming. The research method used is correlational research with a quantitative approach. The sample selected was 80 students using purposive sampling technique. The instrument used was 10 items to measure misconceptions with a four-tier multiple choice diagnostic test and 10 test items to measure scientific literacy skills. The results of the analysis of misconceptions with CRI showed that the category of misconceptions was 44% with moderate criteria, students who understood the concept were 32% and did not understand the concept by 32%. The results of the analysis of scientific literacy skills obtained an average value of 40.65, a percentage of 40.7% and is in the low category after interpretation. The aspect of scientific literacy that is measured in the highest percentage is the context aspect with an average percentage of 48.1%, the knowledge aspect is 40.4% and the competence aspect is 34.1%. The results of the analysis of the relationship between misconceptions and scientific literacy skills were carried out using the Pearson product moment correlation test which showed a positive and significant relationship with a significant value of 0.008 < 0.05 and a large correlation value of 0.270 with a low category. Based on the hypothesis test, the results show that there is a positive relationship between misconceptions and scientific literacy skills with tcount 2.476 > ttable 1.990.

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