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Lilis Lismaya Lismaya, Lilis; Marwoto, Putut; Nugroho, Sunyoto Eko
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.4255

Abstract

The aim of this research is to reduce household organic waste through the use of organic waste as a natural detector of formaldehyde content in food snacks. The organic waste used in this study was red garlic skins, dragon fruit skins and purple sweet potato skins. This research is an experimental research. The stages of the research started with the extraction of anthocyanins from the three organic wastes, direct detection of formalin and detection of food ingredients. The formalin concentrations tested were 0.5%, 1%, 2%, 5% and 25%. Detection ability can be seen from the color change between control and formalin treatment. Garlic skin produces a red extract, dragon fruit skin produces an orange extract, and purple sweet potato skin produces a deep red extract. Test results on 20 samples of food snacks around the campus using the three organic waste extracts proved that all samples contained formaldehyde in varying concentrations. The highest 50% formalin content was found in yellow noodles and meatballs. The conclusion is that purple beetle skin, dragonfruit skin, and red garlic skin can be used as natural detectors for formalin in campus snacks.
The Effectiveness of a Combination of Lime (Citrus aurantifolia.), Lerak (Sapindus rarak) and Jasmine Flower (Jasminum nudiflorum) Extracts as and Environmentally Friendly Corrosion Inhibitor Savitri, Erna Noor; Marwoto, Putut; Nugroho, Sunyoto Eko
Jurnal Penelitian Pendidikan IPA Vol 10 No 3 (2024): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i3.6364

Abstract

Corrosion can also be defined as the forced destruction of metal by the surrounding medium which is usually a liquid (corrosive agent). Corrosion prevention processes can be carried out, including by coating the metal surface, cathodic protection, adding corrosion inhibitors and so on. Several types of inhibitors that have been widely used in industrial applications are synthetic chemical inhibitors. However, the compounds of inhibitors are environmentally unfriendly, toxic and expensive. To overcome this problem, it is necessary to develop an environmentally friendly alternative corrosion inhibitor or better known as a green inhibitor. This research aims to test the effectiveness of using a combination of lime (Citrus aurantifolia.), Lerak (Sapindus rarak) and jasmine flower (Jasminum nudiflorum) extracts as an environmentally friendly corrosion inhibitor. The results obtained were inhibitors in the form of a combination which were added to the corrosive medium HCl which could reduce the rate of aluminum corrosion. This research also shows that time and concentration influence the corrosion rate. A higher concentration (200 ppm) has a greater inhibitory power than a concentration of 100 ppm. The best inhibitory power is found in 200 ppm inhibitor with a soaking time of 20 minutes
Feasibility Test of Osteichthyes Wet Preparations through the Utilization of Chitosan on Storage Quality as Practical Media for Vertebrate Zoology Sugandi, Muhamad Kurnia; Marwoto, Putut; Nugroho, Sunyoto Eko
Jurnal Penelitian Pendidikan IPA Vol 10 No 5 (2024): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i5.6462

Abstract

This study aims to evaluate the use of chitosan as a substitute for formalin in making wet preparations of true bony fish (Osteichthyes) and to assess the feasibility of storing them as practicum media in the Vertebrate Zoology course. Osteichthyes body size varies from 1 cm to 6 meters. The main characteristic of Osteichthyes is the presence of a skeleton consisting of native bone and a hard calcium phosphate matrix. The skin is protected by various types of scales, including ganoid, cycloid, or stenoid scales. The research method used is Experimental Research Method with descriptive approach, which includes hedonic test and shelf life test (organoleptic) through panelist participation. Tilapia (Oreochromis niloticus) was used as the specimen in this experiment with variations in chitosan concentration of 0.50, 1.50, 2.50, and 3.50%. The study included evaluation of Osteichthyes wet preparations by considering aroma and odor, texture, color, as well as monitoring storage stability for one week. The results showed that the wet preparation using chitosan concentration of 3.5% gave satisfactory results for the observation of Osteichthyes structure. In addition, the storage evaluation showed that the quality of the preparations could be well maintained over a certain period. This indicates that chitosan can be an effective alternative in making Osteichthyes wet preparations for Zoology practicum
The Electrical Characteristics of Fruit Peel Waste as a Biobattery in Terms of Fermentation Time and Coconut (Cocos nucifera L.) Pulp Concentration Fatimah, Siti; Marwoto, Putut; Nugroho , Sunyoto Eko
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.6477

Abstract

Bioenergy is an alternative energy that utilizes various types of organic waste that can generate electricity. The purpose of this study was to determine the effect of fermentation time and coconut pulp concentration on the electrical characteristics of durian fruit skin, banana fruit skin, and cassava skin waste as an alternative energy source. The electrical characteristics observed were the voltage generated by fruit peel waste based on fermentation time and coconut pulp concentration. This research is a laboratory-based experimental research. The results of the study showed that: 1) the length of fermentation time affects the voltage generated by durian skin, banana skin, and cassava skin; 2) the fermentation time to produce the best voltage is the fourth day (96 hours); 3) the longer the fermentation time, the lower the voltage generated; 4) coconut pulp concentration affects the voltage generated by durian skin, banana skin, and cassava skin; 5) the ratio of 25% coconut pulp concentration and 75% raw material concentration becomes the ratio that produces the best voltage; 6) durian fruit peel waste has the highest voltage compared to banana fruit peel and cassava peel waste, both in terms of fermentation time or coconut pulp concentration. 7) cassava peel waste has a higher potential difference resistance than other skin waste
Development of Learning Modules Using an Ethnoscience-Based Project-Based Learning Model to Enhance Students' Collaboration, Critical Reasoning, and Creativity Fania Fitriana Rosita; Putut Marwoto; Deni Setiawan
Journal of Primary Education Vol. 13 No. 1 (2024): June 2024
Publisher : Universitas Negeri Semarang

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

Abstract

The Ministry of Education, Culture, Research, and Technology emphasizes the improvement of students' character through various strategies focused on creating Pancasila Students. The main challenges at SDN Manyaran 2 include low collaboration among students and the need to improve critical and creative thinking skills. The study aims to develop, test feasibility, and evaluate the effectiveness of a Project-based Learning module based on Ethnoscience on Light and its properties for fifth-grade students, focusing on improving cooperative skills, critical reasoning, and creativity. This research follows the ADDIE development model, which includes analysis, design, development, implementation, and evaluation stages. Data collection methods include interviews, questionnaires, observation, documentation, and tests. This research was conducted in the fifth grade at SDN Manyaran 2 in Semarang, involving 28 students. The results showed that the development of the learning module was deemed highly feasible, with validation scores for media, content, and language and responses from teachers and students reaching 100%. The product's effectiveness improved students' collaboration, critical reasoning, and creativity. The research results offer students a rewarding and meaningful learning experience, encouraging their ongoing growth and learning motivation. Thus, using a learning module with Project-based Learning Based on Ethnoscience received a highly feasible validation and positively impacted enhancing students' collaboration, critical reasoning, and creativity.
The Effectiveness of Contextual-Approach Science E-Module Integrated with Local Wisdom on Pressure Topic to Improve Critical Thinking Skills Hidayat, Edy; Marwoto, Putut; Widiyatmoko, Arif
Journal of Innovative Science Education Vol. 13 No. 2 (2024): August 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jise.v13i2.9272

Abstract

Integrating local wisdom into science materials is a crucial effort to create contextual learning and instill noble values and a sense of cultural appreciation. Each region requires education tailored to its unique characteristics for effective educational development, necessitating a contextual approach. Incorporating local wisdom values is an essential step in this process. This study aims to develop a contextual science e-module that integrates local wisdom to enhance students' critical thinking skills. The research employed a Research and Development (R&D) approach, specifically using the Sugiyono model. The results indicated that the e-module received a validation score of 97% from material experts, categorized as very valid, and 96% from media experts, also categorized as very valid. The practicality test assessment yielded a value of 98% and was rated as very practical, and student feedback resulted in a score of 98%, which was deemed very good. Additionally, the effectiveness of the e-module was evaluated through the N-Gain score for critical thinking skills, which averaged 0.83, placing it in the high category. The N-Gain value for students' critical thinking skills was 89.95%, classified as effective. Based on the validation, readability, practicality, and effectiveness assessments, the contextual-approach science e-module integrated with local wisdom is deemed feasible as a learning resource.
Improving Computational Thinking Skills Through The Implementation of Project-Based Learning According to Student Differentiation in Physics Learning Rita Iva Fatmala; Putut Marwoto; Ellianawati Ellianawati
Physics Communication Vol. 9 No. 1 (2025): February 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/pc.v9i1.927

Abstract

The research aims to determine the effectiveness of project-based learning by paying attention to student differentiation to improve computational thinking skills. The research is based on students' computational thinking skills, which are still below standard, namely below of 50% at each stage, including decomposition, pattern recognition, abstraction, and algorithms. This research is classroom action research carried out over three learning cycles. The results of the research show that there is an increase in students' computational thinking skills in each learning cycle given. In the first and second cycles, the level of achievement of students' computational thinking skills reached 22.8% and 54.29%, meaning that what was originally in the very low category became low. After that, in the third cycle the level of achievement of students' computational thinking skills in the high category reached 88.57%. The gain test results in the first and second cycles were in the medium category with n- gain scores of 0.40 and 0.52. Furthermore, in the third cycle, an n-gain of 0.71 or high category level. These results indicates that the implementation of project-based learning according to student differentiation in physics learning was effective in improving computational thinking skills.
Development of STEM Based Physics E-Modul with Virtual Lab to Improve Learning Outcomes Muhammad Dzaki Fuad Salim Putra; Bambang Subali; Putut Marwoto
Physics Communication Vol. 9 No. 1 (2025): February 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/pc.v9i1.8343

Abstract

The Merdeka curriculum organizes the physics subject into concept understanding and science process skills. However, based on interviews and observations at MAN IC Pekalongan, the development of process skills in physics learning is rarely facilitated due to the limited availability of learning media and time. This RnD research aims to develop digital learning media as an alternative solution to these problems. The analysis of learning media needs showed that teachers and students need Interactive E-Modules as learning media, applications of physics in everyday life such as STEM, and a Virtual Lab packaged with interactive and simple language. The E-Module was validated by several experts in material, learning media, and learning and was declared highly feasible with an average score of 4.5 out of 5. The posttest results showed an average score of 59.67 for both the experimental and control classes. The n-gain analysis demonstrated that the E-Module effectively improved conceptual understanding, with an n-gain value of 0.74 (high), and had a positive effect on process skills with an average value of 87.86 for the experimental class and 86.44 for the control class, with a significance value of 0.032 in the independent sample test of both classes.
Penguatan Implementasi Computational Thinking dalam Pembelajaran Sains Bagi Guru-Guru Sekolah Indonesia Kuala Lumpur Sugiyanto Sugiyanto; Sugianto Sugianto; Putut Marwoto; Budi Astuti
BERDAYA Indonesian Journal of Community Empowerment Vol. 3 No. 2 (2024)
Publisher : Universitas Negeri Semarang

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

Abstract

The essential 21st-century skills, including collaboration, communication, creativity, and critical thinking, are valuable when combined with computational thinking (CT) skills. Teachers at Sekolah Indonesia Kuala Lumpur (SIKL) need to be capable of implementing CT in their teaching. Since CT is relatively new to the learning environment at SIKL, the implementation of CT in science education needs to be strengthened, particularly for science teachers at SIKL. The issue to be addressed is empowering teachers to implement CT in science teaching at SIKL. The partner’s problem-solving method is based on a facilitation-based Action Learning model. This facilitation-based action learning is divided into three stages: preparation, implementation, and evaluation. The activities include programmed workshops and discussions to understand CT, its importance as a fundamental skill across subjects in today’s and future digital era, and the need for SIKL teachers to acquire foundational CT skills. In addition to workshops and discussions, support was provided in the form of workshops for practicing CT integration and evaluating it within science education. This activity involved 30 SIKL teachers from various levels and subject areas. Before the training, only 45% of participants understood CT concepts, and only a few had applied CT, but afterward, 80% of teachers were able to integrate CT into their teaching. Intensive support in planning, implementing, and evaluating CT-based learning had a significant positive impact. Despite challenges due to the participants' diverse educational backgrounds, the facilitation-based Action Learning method proved effective in addressing these differences and enhancing active participation. This initiative is expected to serve as a starting point for broader CT implementation within SIKL.
The Needs of Elementary School Teachers in Literacy Learning on Reading Comprehension Competence Ayu Nur Azizah; Ida Zulaeha; Panca Dewi Purwati; Woro Sumarni; Putut Marwoto
AL-ISHLAH: Jurnal Pendidikan Vol 14, No 4 (2022): AL-ISHLAH: Jurnal Pendidikan
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v14i4.2215

Abstract

Learning will be effective if the teacher understands the needs of learning well. The purpose of this study was to explore the needs of teachers in literacy learning on reading comprehension competence in elementary schools. The method used in this research is exploratory qualitative which was conducted at the State Elementary School in Central Magelang Sub-District, Magelang City, Central Java Province, Indonesia. The results of the study indicate that there are several problems in literacy learning of reading comprehension competence so teachers need several learning innovations as solutions, namely in the learning model by combining problem-based learning models with the SQ3R model, in teaching materials by developing integrated teaching materials with innovative learning models, and on the assessment instrument by developing an assessment instrument oriented towards high order thinking skills (HOTS). The results of this needs analysis will be used to conduct further research as a form of literacy learning innovation in reading comprehension competence.
Co-Authors - Sugianto - Sutikno Abu Bakar, Suriani Achmad Sopyan Afifah, Rachma Agus Yulianto Ahmad Minanur Rohim Almira Syifa Amal, Muhammad Ikhlasul Ana Maulida, Ana Anak Agung Gede Sugianthara Andi Mursidi Andi Mursidi Ani Rusilowati Arie Rusmiyati Arif Widiyatmoko, Arif Aristawati, Ika Vidiasari Aristiani, Erni Ariwibowo, Litasari Aldila Aryono Adhi, Aryono Astuti, Nurul Heni Atuzzuhro, Qoni' Ayu Nur Azizah Ayu Riyanti, Galuh Ayun, Qurrota Azizah Mutiarani Azizah Zhafirah Babiera II, Rene M. Bagus Addin Hutomo Bagus Addin Hutomo Bagus Addin Hutomo, Bagus Addin Bambang Subali Bambang Subali Bambang Subali Bambang Tri Nugroho Bambang Tri Nugroho Brian Priyangga Budi Astuti Budi Astuti Budi Astuti Budi Naini Mindiyarto Budi Naini Mindyarto, Budi Naini Cahya Wulandari Chintya, Julien Darsono, Teguh DENI SETIAWAN Dharma Putra, Ngurah Made Didi D. Anggoro Didi Dwi Anggoro Didik Aryanto Didik Aryanto Didik Aryanto Dirgantara, Marvinda Rizki Dita Durrotun Nafisah Durrotun Nafisah DWI YULIANTI Dyah Rini Indriyanti Edy Cahyono Edy Cahyono Edy Cahyono Edy Hidayat Elda Herlina Eli Trisnowati Ellianawati, Ellianawati Endang Susilaningsih Endang Susilaningsih Enni Suwarsi Rahayu Erna Noor Savitri, Erna Noor Erni Suharini F. Shoufika Hilyana Faiz Fajar Shafira Faiz Mudhofir Fania Fitriana Rosita Farid Ahmadi Fatiatun, Fatiatun Fauzi Ahmad Muda Fianti Fianti, Fianti Fina Fakhriyah Firdaus Firdaus Firdhosiyah, Siti Fitroh, Ummi Nuzulul Gelu, Afrianus Hadi Sumarto Hadi Susanto Hajar Mawaddah Handayani, Sri Handhita, Emye Tegar Hanifah, Desty Putri Hanik Aida Hardi Suyitno Harjito Kusmanto Harra Hau, Rambu Ririnsia Hartono Hartono Hartono Hartono Hasni, Nur 'Ainiyyah Herdini, Resty Ayu I. Istadi Ida Zulaeha Ima Ismiati Imania, Yayang Fatma Imron Imron, Imron Intan Kusumawati Intan Kusumawati Isa Akhlis Iskandar, Hasbi Istadi Istadi Iwan junaedi Jafri Haryadi jalaluddin, wahyu Kartono , Kasmadi Imam Supardi Khairiah, Khairiah Kim, Kyoo Ho Kristin Oktaviani Kurnia, Wanda Hesti Kurniawan, Aziz Kusnanto Mukti Wibowo Lathif, Yuniar Fahmi Lewa, Ismira Wahyu Lestari Lia Afriyanti Nasution Lilis Lismaya Livia Eunike Paut Luqman Hakim M Hidayatur Rohman M. Hidayatur Rohman M. Hidayatur Rohman M. Hidayatur Rohman Mahardika Prasetya Aji Mahardika Prasetya Aji Maria Agatha Hertiavi Maslichah, Dina Masturi Masturi Media Sasmita Minhat, Minhat Mohamad Ayubi, Dimas Mufida, Aina Muhammad Dzaki Fuad Salim Putra Muhammad Habib Ramadhani Mujib Ubaidillah Mulia, Shila Artha Muqoyyanah Muqoyyanah Muqoyyanah Muqoyyanah Muqoyyanah Mursidi, Andi Mushthofa, Zayyinul Muslih, Ersan Yudhapratama Muslimah Susilayati Mutiarani, Azizah Muttaqin, Rodhotul Muttaqin, Rudhotul Nada, Nadila Qotrun Nafiusokhib, Nafiusokhib Naila Nur Niswatul Ula Nathan Hindarto Ngurah Made Dharma Putra Noor, Yusmaniar Afifah Novita, Mery Noviyatun, Siti Nugroho , Sunyoto Eko Nugroho, Deni Ebit NUR HAMID Nur Hamid Nuri Nuri Nurkaenah, Nurkaenah Nursidhi, Nursidhi Nyi Mas Ayu Ratna Gumilar Obimita Ika Permatasari Panca Dewi Purwanti Panca Dewi Purwati, Panca Pratiwi Oktaviani, Pratiwi Prayitno, Mohammad Agus Prayitno, Wasi Sakti Wiwit Putra, Ngurah Made Darma Putra, Ngurah Made Dharma Putri Pratiwi Lestari Qurrota Ayun Ratna Dewi Kusumaningtyas Retno Sri Iswari Reza Faizal, Reza Rina Wati Riska Septianita riswanto riswanto Rita Destini Rita Iva Fatmala Riyanti Riyanti Rofi'ah, Siti Hidayatur Rofiatul Zannah Rofiatul Zannah, Rofiatul Rosmeita Ayu Budiarti Ruhama Desy, Ruhama Rusdiyana Rusdiyana Ruwiyatun Ruwiyatun S Sulhadi Sari, Nabila Rizkina Sarwi - Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Sarwi Setiawan, Puji Agus Setyaningsih, Natalia Erna Shofwan Ridho Sigit Priatmoko Sigit Priyatmoko Sigit Saptono Siregar, Sofiyan Siti Fatimah Siti Hanifa Ari Utami* Siti Hardiyanti Hasasiyah Siti Hardiyanti Hasasiyah Siti Hardiyanti Hasasiyah, Siti Hardiyanti Siti Noviyatun Siti Wahyuni Sopyan, Achmad Sri Haryani Sri Lestari Handayani Sri Mulyani Endang Susilowati, Sri Mulyani Endang SRI WARDANI Sri Wardhani Sudarmin Sudarmin Sudarmin Sudirman Sudirman Sugandi, Muhamad Kurnia Sugianto - Sugianto Sugianto Sugianto Sugianto Sugito Sugito Sugiyanto - Suharto Linuwih Suherman Suherman Suherman Suherman Sujarwata Sujarwata, Sujarwata Sulhadi Sulhadi - Sulhadi Sulhadi Sulistiyo Rini, Ari Sumarli Sumarli, Sumarli Sundari Sundari Sundari Sundari Sungkowo Edy Mulyono Sunyoto Eko Nugroho, Sunyoto Eko Supriadi Rustad Supriyadi Supriyadi Supriyadi Supriyadi Suryani Abu Bakar Suryaningsih, Yuliana Susilo Susilo Suyanto Suyanto Syaifuddin Syaifuddin Teguh Darsono Tri Agung Prasetya Tri Maria Wea Ulia Anisatur Rosidah Upik Nurbaiti Wahyu Hardyanto Wahyuningsih, Diana Arin Wawan Wawan Widya Nugraheni Widiningrum Wijanarko, Andrian Gandi Winarto Winarto Wiyanto - Wiyanto Wiyanto Wiyanto Wiyanto Woro Sumarni Yanti Yanti Yanti Yanti Yazid, Muhammad Abdau Yuliana Suryaningsih Yuniar Fahmi Lathif Zaenuri Mastur Zahrotul Aini, Zahrotul Zayyinul Mushthofa Zhafirah, Azizah