Articles
<![CDATA[Analisis Kemampuan Multirepresentasi Verbal dan Gambar terhadap Mahasiswa Semester 1 dalam Memahami Konsep Teknologi Solar Cell ]]>
<![CDATA[Elsa Munawarotul Jannah]]>;
<![CDATA[Sudarti Sudarti]]>
<![CDATA[ Jurnal Penelitian Fisika dan Terapannya (JUPITER) Vol 2, No 1 (2020): Jurnal Penelitian Fisika dan Terapannya (JUPITER) ]]>
Publisher : <![CDATA[Universitas PGRI Palembang ]]>
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DOI: 10.31851/jupiter.v2i1.5129
<![CDATA[Penelitian ini bertujuan untuk menganalisis kemapuan multirepresentasi verbal dan gambar pada mahasiswa semester 1 dalam memahami konsep teknologi solar cell. Penelitian menggunakan metode deskriptif dengan instrumen berupa kuisioner pada 40 mahasiswa. Sumber data diperoleh dari kuisioner berbentuk pilihan ganda yang meliputi soal verbal dan gambar sebanyak 8 soal yang tervalidasi. Hasil jawaban dianalisis untuk mendeskripsikan kemampuan mahasiswa semester 1 dalam merepresentasikan konsep energi terbarukan dan teknologi solar cell dalam bentuk verbal dan gambar. Hasil analisis data menunjukkan bahwa kemampuan representasi verbal lebih rendah daripada representasi dalam bentuk gambar yaitu dengan persentase 18,75% untuk representasi verbal dan 32,5% untuk representasi gambar. Nilai persentase representasi verbal dan gambar mahasiswa belum mencapai 50%, hal ini dikarenakan mahasiswa semester 1 belum menempuh mata kuliah fisika lingkungan sehingga hanya mengingat materi tentang konsep teknologi solar cell yang telah diajarkan di SMA.]]>
<![CDATA[The Analysis of Alcohol Content in Cassava (Tape) Fermentation Process ]]>
<![CDATA[Sherly Nur Laili]]>;
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Trapsilo Prihandono]]>
<![CDATA[ Journal of Science and Science Education Vol. 3 No. 1 (2022): April ]]>
Publisher : <![CDATA[Pascasarjana, Mataram University ]]>
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DOI: 10.29303/jossed.v3i1.1340
<![CDATA[The fermentation process in making cassava tape (Manihot esulenta) worked on the alcohol content. The alcohol content differed during the fermentation process. The objective of this research was analyzing the alcohol content produced in the fermentation process of cassava tape (Manihot esculenta). The data interpretation method was experimented in this research. Three samples of tape were treated with ELF magnetic field exposure involving the intensity of 200µT with 15-minute exposure and the intensity of 300µT with 15-minute exposure. The tools used in this research were a thermometer to measure room temperature and a portable alcohol brix ATC meter refractometer to measure alcohol content. The results showed the average alcohol content on the first day was 8-10%; it increased on the following day by 25% and on the third day, it reached 36-38%. Thus, the longer the fermentation process, the higher the alcohol content would be; it can be concluded that the samples treated with ELF magnetic field at the intensity of 300uT obtained the highest alcohol content.]]>
<![CDATA[Analysis of Exposure to an Extremely Low Frequency (ELF) 700 μT and 1000 μT Magnetic Fields in Tuna Meat (Euthynnus Affinis C) ]]>
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Karina Laksmiari]]>;
<![CDATA[Elok Permatasari]]>;
<![CDATA[Farida Wahyu Ningtyas]]>
<![CDATA[ Journal of Science and Science Education Vol. 3 No. 1 (2022): April ]]>
Publisher : <![CDATA[Pascasarjana, Mataram University ]]>
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DOI: 10.29303/jossed.v3i1.1366
<![CDATA[The resistance of tuna meat in a room temperature classed quietly short as it takes approximately 6 hours has encountered a process of decay. Consequently, the technology is needed to increase its durability. This study aims to analyze the exposure to Extremely Low Frequency (ELF) 700 μT and 1000 μT magnetic fields in tuna meat (Euthynnus Affinis C). The sample was 3300 grams of fresh tuna meat, which had been stored in the refrigerator for 4 hours as it was divided into 66 plastic wrappers (50grams), then grouped into three groups. They were the control group (K), the ELF magnetic fields intensity 700 μT (E700) group, and the ELF magnetic fields ELF intensity 1000 μT (E1000) group with variations in an exposure time of 15 minutes, 30 minutes, and 45 minutes. Measurement of pH and assessment of physical condition was carried out on the 5th, 10th, and 15th hours after being exposed to the ELF magnetic fields. The results highlighted the pH value in all groups exposed to the ELF magnetic fields was significantly lower (p < 0.05) than the control group. Meanwhile, the physical condition of tuna exposed to the ELF magnetic fields appeared to be better than the control until the 15th hour of storage. Conclusion: Exposure to an ELF magnetic field with an intensity of 1000 µT for 15 minutes has the potential to increase the physical resistance of tuna until the 15th hour after being exposed to an ELF magnetic field]]>
<![CDATA[THE PRELIMINARY STUDIES OF ENVIRONMENTAL ETHICS IN JUNIOR AND SENIOR HIGH SCHOOL STUDENTS THROUGH ENVIRONMENTALLY SOUND LEARNING ]]>
<![CDATA[Mohamad Khoirul Anam]]>;
<![CDATA[Sudarti Sudarti]]>
<![CDATA[ ScienceEdu: Jurnal Pendidikan IPA Vol 3 No 1 (2020) ]]>
Publisher : <![CDATA[Program Studi Pendidikan IPA FKIP Universitas Jember ]]>
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DOI: 10.19184/se.v3i1.18126
<![CDATA[Learning is an activity that has important potential to instill scientific attitudes and positive attitudes in students. Learning activities in schools can provide insight for students in several fields, one of which is the environment. As is known, environmental problems are problems that are always found and tend to accompany human behavior and activities. The problem of cleanliness, order, and rubbish is a complicated thing that is entrenched in the current era supported by the increasingly high consumption of human consumption. For this reason, ethics-based learning needs to be applied in teaching and learning activities in the classroom. In the initial study of this study using the observation method with a questionnaire aimed to get students' responses related to environmental ethics.]]>
<![CDATA[The Effect of Object-Oriented Physics Learning on Students' Abilities to Interpret and Make Reasoning about Data ]]>
<![CDATA[Suryadi Suryadi]]>;
<![CDATA[I Ketut Mahardika]]>;
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Supeno Supeno]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol. 8 No. 3 (2022): July ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v8i3.1746
<![CDATA[This study aims to develop students' abilities in interpreting and making reasoning about physics data. The type of research used is experimental research. Physics learning was carried out in two classes: control and experimental groups. In the experimental group, physics learning was oriented to student activities where students dealt with physics objects. In contrast, in the control group, physics was taught conventionally by applying direct learning. The ability to interpret and to make reasoning about data was obtained through written tests conducted on pre-test and post-test. Analysis of research data was carried out by qualitative descriptive and t-test statistical analysis. The descriptive analysis was performed to describe students' abilities to interpret and to make reasoning about data. A statistical t-test analysis was conducted to determine the difference in the impact of treatment on the two groups. The results showed that the average ability to interpret data and to make reasoning about data in the experimental group was 76.91 and 76.99, respectively, while in the control group, it was 53.33 and 63.08, respectively. The results of the t-test analysis showed that the 2-way (t-tailed) significance value was 0.000 < 0.05, so it could be stated that there was a difference in ability between the control group and the experimental group. Based on the results of these studies, it can be noted that learning physics that involves a lot of student activities that interact directly with physics objects can improve the skills of high school students in interpreting and reasoning scientific data.]]>
<![CDATA[STEM-CP (Sains, Technology, Engineering Mathematics-Contextual Problem) Based Physics Module to Increase Student Literacy Skills at Vocational High School ]]>
<![CDATA[M R Sari]]>;
<![CDATA[Sutarto Sutarto]]>;
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Indrawati Indrawati]]>;
<![CDATA[A S Budiarso]]>
<![CDATA[ Pancaran Pendidikan Vol 9, No 1 (2020) ]]>
Publisher : <![CDATA[The Faculty of Teacher Training and Education The University of Jember Jember, Indonesia ]]>
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DOI: 10.25037/pancaran.v9i1.271
<![CDATA[Materials in physics learning at school are considered difficult to understand, especially in the concept of fluids. Students also frequently had misconceptions. Contextual issues are required to overcome this problem. STEM-CP (science, technology, engineering, mathematics-contextual problem) is seen to help students understand the concept of fluid through contextual issues. This study aimed to develop a module based on STEM-CP (Science, Technology, Engineering, Mathematics-Contextual Problem) in physics designed for a vocational school. This research used Quasi-Pretest-Posttest Experiment without a control class study obtained the data by using observation and testing of vocational schools in Jember. The study involved 35 students of SMK grade X. The data collected from the pretest and posttest using an open question correspond to the indicator of scientific literacy. The results showed an average of scientific literacy of students using STEM-CP based modules are in both categories in the cognitive domain and a very good product on the cognitive process.]]>
<![CDATA[Fermentation Method With the Help of Extremely Low Frequency (Elf) Magnetic Field Radiation to Support Luwak Coffee Superior Products In Sidomulyo Village, Silo District, Jember Regency, East Java ]]>
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Singgih Bektiarso]]>;
<![CDATA[Alex Harijanto]]>;
<![CDATA[Yushardi Yushardi]]>;
<![CDATA[Trapsilo Prihandono]]>;
<![CDATA[Sumardi Sumardi]]>
<![CDATA[ Unram Journal of Community Service Vol. 3 No. 3 (2022): September ]]>
Publisher : <![CDATA[Pascasarjana Universitas Mataram ]]>
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DOI: 10.29303/ujcs.v3i3.281
<![CDATA[Coffee production in Sidomulyo Village, located at the foot of Mount Gumitir, Silo District, Jember Regency, is famous for being very abundant. This condition is very supportive of the increasing needs of coffee drink lovers. However, the taste of ready-to-brewed ground coffee produced by the Sidomulyo Koperasi WANITA is still unable to compete with coffee on the market. This activity aimed to provide training on civet coffee production through the dry coffee bean fermentation method as a primary ingredient. The fermentation process was carried out using a Magnetic Fermentation machine which was the result of research in 2020. The fermentation process training activity was attended by 15 members of the Koperasi WANITA. 50 kg of dry coffee was fermented using a Magnetic Fermenter machine. Dry coffee was soaked first in warm water (temperature around 30 - 400C) for 5 hours. Then it was drained and put in a fermenter box by adjusting the intensity of the ELF magnetic field to around 300 T for 90 minutes. The coffee beans were transferred to buckets and ripened for up to 5 days, then washed and sun-dried for three days, after drying in Roasting and continue grinding. The targeted outputs of this activity included scientific publications in the National Journal of Abdimas with ISSN. The results of this activity produced fermented coffee beans that had been roasted in the form of roasted coffee beans and ground coffee. Based on the results of the evaluation, the members of the Ketakasi Koperasi already had skills in producing artificial Luwak coffee. This had the potential to develop superior products for Sidomulyo civet coffee.]]>
<![CDATA[Innovation of Shopping Bags Made from Patchwork as Provision for Women's Skills in Bandung Village Rt 01 Rw 05 Gedeg District, Mojokerto Regency ]]>
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Oktania Putri Angelina]]>;
<![CDATA[Sherly Nur Laili]]>
<![CDATA[ Unram Journal of Community Service Vol. 3 No. 3 (2022): September ]]>
Publisher : <![CDATA[Pascasarjana Universitas Mataram ]]>
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DOI: 10.29303/ujcs.v3i3.324
<![CDATA[Garbage is used goods obtained from human and natural activities that have no economic value. Until now, waste is still an unresolved problem, one of which is in Indonesia. Patchwork is the remnants of cutouts from fabric-making or convection businesses. The abundance of patchwork potential is not proportional to the processing carried out. The tailors or workers on average do not know the importance of patchwork processing so the patchwork is discarded without being reprocessed. This problem also occurs in Bandung Village. The high level of use of plastic waste can be minimized by utilizing the potential of patchwork through shopping bags made of patchwork (Patchwork Bag). The purpose of this study was to provide education about the importance of making shopping bags made of patchwork and to improve the skills of women in making shopping bags made of patchwork. The research method used is a qualitative description. The results showed that the women in Bandung Village were very happy with the training activities to make shopping bags made of patchwork. This can provide additional insight, improve skills, and can be used for entrepreneurs.]]>
<![CDATA[Analysis of Physical Resistance of Apple Tomatoes After Exposed to A Magnetic Field Extremely Low Frequency (ELF) Intensity 600 µT and 1000 µT ]]>
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Siti Umayatul Khoiroh Nur]]>;
<![CDATA[Elok Permatasari]]>;
<![CDATA[Nila Mutia Dewi]]>;
<![CDATA[Sherly Nur Laili]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v8i6.2306
<![CDATA[Apple tomatoes with the scientific name Lycopersicum Pyriporme can last 7 days at room temperature and 14 days if stored in the refrigerator. The purpose of this study was to examine the effect of the ELF magnetic field intensity 600 uT and 1000 uT for 30, 60 and 90 minutes on the degree of acidity (pH), density (ρ) and physical quality of apple tomatoes. The research design used was RAL (completely randomized design). Data collection on the pH variable begins with crushing the tomatoes and then measuring the pH value of each fruit using a digital pH meter. The density variable was obtained by weighing the mass of each fruit and dipping the fruit in 150 ml of distilled water as the initial volume, then the difference between the final volume and the initial volume was obtained to obtain the final density of each fruit using the density equation. Physical condition variables can be obtained by counting the number of good fruits and recording each measurement. Observations were made for 20 days with data collection on the 0, 4th, 8th, 16th, and 20th days. The results showed that there were differences in the value of pH, density and physical quality of tomatoes between the control group and the experimental group. Exposure to the ELF magnetic field can affect the activity and reproduction of pathogenic microorganisms in apple tomatoes so as to maintain the pH value, density and physical quality of apple tomatoes.]]>
<![CDATA[Bahasa Inggris ]]>
<![CDATA[Supeno Supeno]]>;
<![CDATA[Trapsilo Prihandono]]>;
<![CDATA[I Ketut Mahardika]]>;
<![CDATA[Sudarti Sudarti]]>;
<![CDATA[Lailatul Nuraini]]>
<![CDATA[ Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December ]]>
Publisher : <![CDATA[Postgraduate, University of Mataram ]]>
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DOI: 10.29303/jppipa.v8i6.2595
<![CDATA[Lesson study was a practical approach to improve the quality of instruction and use widely in professional development programs for teachers. This article presents an innovative approach to developing the instruction ability and skills of science teacher candidates when actual teaching practice in a classroom through lesson study. Based on the lesson study approach, science teacher candidates worked collaboratively to understand the curriculum and state the desired learning outcomes; design lesson plans; teach a common lesson in 4 different classrooms; and conduct reflection to share, discuss, and refine their lesson. The teaching abilities and skills are assessed based on knowledge of the subject matter, quality of lesson plans, and learning practices. The result showed that the lesson study approach was a vital structure that helped science teacher candidates improve their teaching skills and ability. The research result gives implications for development programs for science teacher candidates will be discussed in light of these findings. ]]>
