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Analisis Kemampuan Berfikir Kritis Terhadap Permasalahan Produk Unggulan Kakao Pada Siswa Sekolah Menengah Atas Di Jember Lutfiana Ditta Sari; Sudarti Sudarti; Rifâ€™ati Dina Handayani
Jurnal Penelitian Pendidikan IPA Vol 9 No 1 (2023): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i1.2608

The implementation of this research is limited by setting the problem of critical thinking skills to the problem of superior products in Jember, namely Cocoa students in Jember. This research was carried out using local wisdom on the subject matter of fermentation in cocoa beans. Students' thinking ability is carried out through filling in the work on test questions in the form of descriptions. The research will be carried out in October-November. The results of the research are the critical thinking skills of vocational students with a score of 76.53 higher than high school students with an average score of 62.37 for critical thinking skills. This shows that vocational students understand more about Jember's superior product, namely cocoa. Being in a district with one of the leading products, namely cocoa, makes vocational high School students equipped with knowledge about cocoa commodities, such as cocoa seeds, cocoa product development and cocoa processing methods. Thus, it is hoped that high school and vocational high school students will be able to make a maximum contribution in efforts to develop local products so that they can increase the progress and welfare of the local area. Problem-based learning that links learning materials and local wisdom is needed to support the improvement of students' critical thinking skills.

Evaluation of Effective Strategies for Passing Acceptance at State and Official Universities in 2022 Sudarti Sudarti; Elok Permatasari; Albertus Djoko Lesmono
Unram Journal of Community Service Vol. 4 No. 1 (2023): March
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v4i1.438

Along with the increasingly modern developments, higher education has a significant contribution to improving the quality of human resources. However, the lack of student motivation to continue on to tertiary education is one of the indicators that we need to address. This activity aims to motivate MA/SMA/SMK students to continue their studies at tertiary institutions and official services, as well as to increase knowledge, understanding, and master strategies for passing into PTN and official services in 2022. This activity is carried out ONLINE through virtual zoom meetings and whatsapp group, targeting MA/SMA/SMK students. The stages of carrying out this activity, 1) Preparation by the service team and the ILBG Galileo Jember team, 2) online webinars every Sunday, especially on January 16, January 23, and February 6 2022, 3) Online assistance through washtapp ghroup, 4) Evaluation, 5) Reporting. The expected results of this activity include, 1) Increased motivation of MA/SMA/SMK students to enter tertiary institutions and official services, 2) Increased student understanding of strategies for passing to PTN and official services, 3) Increased student mastery in understanding material and test questions selection to enter tertiary institutions and official services, 4) students better understand how to choose the right major strategy.

A Development and Implementation of Integrated STEM-Based Science Textbooks and Local Potential of Coffee Agroecosystems to Improve Science Literacy for Junior High School Students Mohammad Abdul Azis; Sudarti Sudarti; Bevo Wahono; I Ketut Mahardika; Slamet Hariyadi
BIOEDUKASI Vol 21 No 2 (2023)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v21i2.38442

The purpose of this research is to describe the characteristics of STEM-based teaching materials and to find out the increase in scientific literacy skills of junior high school students. The method used in this research is research and development. The design of this study uses the ADDIE model, with the stages of analysis, design, development, implementation, and evaluation. The trial design used the One Group Pretest-Posttest Design. The test subjects were class VII SMP Walisongo Mayang. The characteristics of this integrated STEM-based textbook and local potential contain material on temperature and heat, complemented by student environmental events as well as practicum procedures and project creation related to STEM aspects for students. The results of the validity of the textbooks developed by the validator show very valid criteria, with the results of the feasibility test using a student response questionnaire showing textbooks included in the practical category and good for students. As well as the results of the effectiveness of textbooks show that they can improve students' scientific literacy skills which are marked by an increase in pretest to posttest scores (t-test value 25,668 and n-gain 0.77). Developing textbooks for students makes it possible to develop them more broadly with STEM development as well as the problems and challenges faced by students in the surrounding environment.

Extremely Low Frequency Electromagnetic Field Radiation (50 Hz, 200 ÂµT & 300 ÂµT) to Increase Edamame Productivity and Safety Risks to Health Sudarti Sudarti; Elok Permatasari; Sumardi Sumardi; Wahyu Muldayani; Ega Bonansyah Utoyo; Winaning Nur Prihatin
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.2494

More and more research results report that exposure to Extremely Low Frequency (ELF) magnetic fields at low intensity can increase cell proliferation. The ELF magnetic field interacts directly with cell membranes, capable of increasing intracellular calcium and under certain conditions affecting cell proliferation. This study wanted to prove the potential of ELF magnetic field radiation with intensity of 200 ÂµT and 300 ÂµT on edamame productivity. The research design used a completely randomized design. The research sample was 250 edamame soybeans of the Ryokkoh-75 variety which were divided into 5 groups. Samples were soaked in warm water for 3 hours and then cured for about 12 hours and exposed to ELF magnetic fields of intensity of 200 ÂµT and 300 ÂµT with variations in exposure time of 60 minutes and 120 minutes. Then it is seeded and planted in the field. Observation of the number of edamame pods and the number of pods was carried out when they were already fruiting, namely day 29 to day 43. The results of the study proved that the number of pods and the number of edamame pods in the group exposed to the 200 ÂµT and 300 ÂµT ELF magnetic fields was higher than the control. It appears that the highest number of fruits and pods occurred in the sample group exposed to the ELF magnetic field intensity of 300 ÂµT. The conclusion is that exposure to the ELF magnetic field intensity of 300 ÂµT has the potential to increase edamame productivity

Evaluation of Effective Strategies for Passing Acceptance at State and Official Universities in 2022 Sudarti Sudarti; Elok Permatasari; Albertus Djoko Lesmono
Unram Journal of Community Service Vol. 4 No. 1 (2023): March
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v4i1.438

Along with the increasingly modern developments, higher education has a significant contribution to improving the quality of human resources. However, the lack of student motivation to continue on to tertiary education is one of the indicators that we need to address. This activity aims to motivate MA/SMA/SMK students to continue their studies at tertiary institutions and official services, as well as to increase knowledge, understanding, and master strategies for passing into PTN and official services in 2022. This activity is carried out ONLINE through virtual zoom meetings and whatsapp group, targeting MA/SMA/SMK students. The stages of carrying out this activity, 1) Preparation by the service team and the ILBG Galileo Jember team, 2) online webinars every Sunday, especially on January 16, January 23, and February 6 2022, 3) Online assistance through washtapp ghroup, 4) Evaluation, 5) Reporting. The expected results of this activity include, 1) Increased motivation of MA/SMA/SMK students to enter tertiary institutions and official services, 2) Increased student understanding of strategies for passing to PTN and official services, 3) Increased student mastery in understanding material and test questions selection to enter tertiary institutions and official services, 4) students better understand how to choose the right major strategy.

Distribution Pattern of ELF Field Exposure Electricity Distribution Substation Portal Pole Type 20 kV Medium Voltage Network Ega Bonansyah Utoyo; Trapsilo Prihandono; Sudarti Sudarti
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 10 No 1 (2024): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v10i1.6783

The electricity distribution substation is one of the components of the electricity distribution system. Electrical distribution substations, especially portal pole-type electrical distribution substations, can emit ELF fields. However, people need to be aware of the health risks of ELF fields and continue to carry out various activities near electricity distribution substations. This research aims to create a distribution pattern for ELF Field and determine its safety level based on WHO thresholds. The research was conducted in the Jember Regency, particularly in Sumbersari District. This research uses a portal pole-type electricity distribution substations. The substation criteria studied were a portal pole distribution substation on a 20 kV transmission line with a transformer capacity of 160 kVA. The measurement points are 0 m below the transformer, 0.7 m, 1.4 m, 2.1 m, 2.8 m, 3.5 m, 4.1 m, and 4.9 m from the distribution substation building at a height of 1.5 m from the ground for three days at 21.00 WIB and 30 measurements were taken. The distances of these points to the transformer are 4.256 m, 4.313 m, 4.480 m, 4.745 m, 5.094 m, 5.510 m, 5.979 m and 6.490 m respectively. The type of research used is quantitative research with survey data collection techniques. The research design used was cross sectional study. Cross sectional study is a type of observational research design that collects data at one specific point in time from a sample which represents the population studied. ELF field measurements show a spherical distribution pattern with an average magnetic field intensity between 0.0358 µT and 2.91 µT and an average electric field intensity between 2.35 V/m and 16.42 V/m. The magnitude of the magnetic field and electric field measured gets smaller as the distance from the measurement point increases. According to WHO, these results are below the threshold for the general group. This research concludes that the portal pole-type distribution substation in the medium voltage network produces a safe ELF field with a spherical distribution pattern that is inversely proportional to the distance.

Integrating Extremely Low Frequency Magnetic Field Studies in Science Education: “A Case Study on 500 kV Extra High Voltage Transmission Lines" Sudarti Sudarti; Sumardi Sumardi; Singgih Bektiarso; Wahyu Muldayani; Dina Helianti; Ayu Munawaroh Aziz; Aditya Kurniawan; Rio Dermawan; Tania Ardiani; Rista Setiani
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9948

Introduction: Until now, the impact of Extremely Low Frequency electromagnetic field radiation (ELF-EMF) by extra high voltage transmission lines (500 kV-EHVTL) is still debated. While WHO recommends a threshold of magnetic field exposure of 100 µT for up to 24 hours/day is declared safe for health. This study aims to examine the Integration of Extremely Low Frequency Magnetic Field Studies in Science Education: "Case Study on 500 kV-EHVTL". This study is important to support literacy in Environmental Physics and Environmental Radiation courses. The location of the study is a 500 kV EHVTL building located in Gondang Wetan District, Pasuruan Regency, East Java, Indonesia. Measurement of ELF magnetic field intensity using the EMF Tester-827 tool. The measurement position is at point 0 (directly below), and lateral distances of 50m, 100m, 150m, 200m, and 250m from the EHVTL power grid cable, as well as distances of 0m, 1m, 5m, 10m, and 15m from the EHVTL power grid tower. The intensity of ELF magnetic field exposure just below the EHVTL reached a value of 5.73 µT-10,085 µT (increased 170-234 times) compared to the natural magnetic field. While several research results prove that exposure to magnetic fields with an intensity of around 10 µT in vitro causes an increase in cell proliferation. Increased cell proliferation in the human body can have negative effects on health. Based on the research results it was concluded that an increase in the intensity of ELF magnetic field exposure up to 170-234 times can cause biological effects at the cellular level and has the potential to cause health impacts on humans. it is advisable to avoid living under the EHVTL network, and the WHO recommendation that the threshold exposure value of 100 µT is declared safe for humans exposed for up to 24 hours/day needs to be reviewed

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