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All Journal International Journal of Advances in Applied Sciences JURNAL KIMIA SAINS DAN APLIKASI TELKOMNIKA (Telecommunication Computing Electronics and Control) Tadris: Jurnal keguruan dan Ilmu Tarbiyah Agrointek Eksergi: Chemical Engineering Journal Bulletin of Chemical Reaction Engineering & Catalysis Jurnal IPTEK KOVALEN: Jurnal Riset Kimia Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan J-PEK (JURNAL PEMBELAJARAN KIMIA) JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Al-Kimia Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Chemistry Indonesian Journal of Chemical Research Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Fisika : Fisika Sains dan Aplikasinya Fullerene Journal of Chemistry Jurnal Karinov Stannum : Jurnal Sains dan Terapan Kimia Jurnal Ilmiah Farmako Bahari Indonesian Journal for Social Responsibility Jurnal Graha Pengabdian Reforma: Jurnal Pendidikan dan Pembelajaran JoEMS : Journal of Education and Management Studies Jurnal Ilmiah Ibnu Sina (JIIS): Ilmu Farmasi dan Kesehatan Journal of Disruptive Learning Innovation (JODLI) Journal of Engineering Science and Technology Jurnal Teknik Kimia dan Lingkungan Jurnal MIPA dan Pembelajarannya Bulletin of Chemical Reaction Engineering & Catalysis Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) Jurnal Terapan Pendidikan Dasar dan Menengah Jurnal Akademika Kimia Frontier Advances in Applied Science and Engineering Jurnal Konstatering
Sumari Sumari
Universitas Negeri Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Identifikasi Hasil Pengembangan Soal Tryout Mahasiswa Pendidikan Profesi Guru Sumari, Sumari; Faizah, Siti
JoEMS (Journal of Education and Management Studies) Vol. 8 No. 5 (2025): Oktober
Publisher : Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32764/joems.v8i5.1594

Abstract

This study aims to analyze the quality of the tryout instrument for students of the Industrial Chemical Engineering Professional Education (PPG) Study Program through the validity and reliability test of the questions. The method used is descriptive quantitative with 29 students as research subjects. The instrument consists of 35 multiple-choice questions analyzed using Corrected Item-Total Correlation for validity and Cronbach's Alpha for reliability. The results showed that of the 35 questions, only about 20-25% met the validity requirements, while the rest were declared invalid. The reliability value of the first instrument was 0.565 which is included in the low-sufficient category. After item selection and leaving 11 questions, the reliability increased significantly to 0.804 which is included in the good category. This finding indicates that the quality of the instrument is determined more by the quality of the questions, not the number of questions. The second instrument is more valid and reliable so it can be used for learning evaluation, while the first instrument requires revision. In this case, the second instrument is the result of a selection of the first instrument, not two different instruments. Therefore, it is necessary to revise the tryout questions so that the questions developed are not too easy for PPG students in the Industrial Chemical Engineering Study Program.
Peningkatan Hasil Belajar Mata Pelajaran PKN Materi Negara Kesatuan Republik Indonesia melalui Metode Value Clarification Technique (VCT) pada Siswa Kelas V SDN Tulupari Kecamatan Tiris Kabupaten Probolinggo Tahun Pelajaran 2021/2022 Sumari, Sumari
Jurnal Terapan Pendidikan Dasar dan Menengah Vol 3 No 1 (2023): Volume 3 Nomor 1, Maret 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/jtpdm.v3i1.808

Abstract

Pengajar mata pelajaran PKn yang mencakup Memahami Negara Kesatuan Republik Indonesia mengharapkan hasil yang sangat berbeda dengan tes formatif dan metode pembelajaran konvensional. Karena hanya empat dari 18 siswa yang mengikuti pelajaran yang memenuhi standar KKM, maka tingkat ketuntasan tercapai sebesar 22,22%. Masih jauh dari tingkat ketuntasan belajar yang diharapkan, yaitu minimal 75%. Menurut KKM, 14 siswa belum menyelesaikan mata kuliah atau 77,78% yang menunjukkan bahwa pengajaran guru masih belum efektif. Penulis memfokuskan permasalahan tersebut dan merumuskannya setelah mengidentifikasi dan menganalisis permasalahan yang ada: Apakah metode Teknik Klarifikasi Nilai (VCT) dapat meningkatkan hasil belajar PKn siswa kelas V tentang Negara Kesatuan Republik Indonesia di SDN Tulupari, Kecamatan Tiris? Pada Sabtu, 30 September 2017, dilakukan pra siklus. Ada dua pelajaran dan dua pertemuan 70 menit. Pada 7 Oktober 2017 telah dilaksanakan pembelajaran Siklus I. Ada dua pelajaran dan dua pertemuan 70 menit. Learning Cycle kedua berlangsung pada 21 Oktober 2017. Terdapat dua pembelajaran dan dua kali pertemuan 70 menit. 77,8% dan 22,2% siswa tidak menyelesaikan pendidikan mereka selama pra-siklus. Pada pembelajaran Siklus I, 55,5 persen siswa menyelesaikan tugasnya, sedangkan 44,5% tidak menyelesaikannya. Pada siklus II, 83,3 persen siswa menyelesaikan tugasnya, sedangkan 16,7% tidak menyelesaikannya. Setelah peningkatan pembelajaran dilaksanakan, tingkat keberhasilan, atau persentase siswa yang menyelesaikan pendidikannya meningkat secara signifikan. Hasil tes pra siklus menunjukkan rata-rata hanya 65,50; 85 pada siklus kedua; dan 71,10 pada siklus pertama.
Concentration Effect of MgO/K2O Catalyst on Transesterification of Castor Seed (Ricinus communis) Oil: Pengaruh Konsentrasi Katalis MgO/K2O pada Transesterifikasi Minyak Biji Jarak (Ricinus communis) Santoso, Aman; Sumari, Sumari; Asrori, Muhammad Roy; Ni’mah, Irsyadatun
Stannum : Jurnal Sains dan Terapan Kimia Vol 6 No 2 (2024): October 2024
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v6i2.4692

Abstract

Fatty acid methyl esters can be obtained from the synthesis of vegetable oil with methanol using a base catalyst. Vegetable oil has the potential as biodiesel feedstock, the methyl ester character of various vegetable oils is different as from castor seed oil. Synthesis of methyl esters by transesterification reaction with the addition of a heterogeneous catalyst, namely MgO/K2O. The purpose of this study was to synthesize methyl esters from castor seed oil with MgO/K2O catalyst and to determine the yield and character. The research went through 6 stages which included (1) isolation of castor seed oil, (2) determination of free fatty acid (ALB) levels of castor seed oil, (3) manufacture of MgO/K2O catalyst (4) esterification of castor seed oil with H2SO4 catalyst (5) transesterification of jatropha seed oil with methanol and various variations in the concentration of the catalyst MgO/K2O 1%, 2%, 3%, (6) characterization of the synthesized methyl ester which includes tests of density, viscosity, acid number, refractive index and moisture content. The results showed that the concentration of MgO/K2O had an effect on the synthesis of methyl esters from castor seed oil, where the optimization condition was achieved at a concentration of 2% MgO/K2O with a yield of 97.99%. The methyl ester character which is synthesized from castor seed oil with a 2% MgO/K2O catalyst is having a density of 1.0244 g/mL, a viscosity of 22.531 cSt, an acid number of 2.81 g KOH/g methyl ester, a refractive index of 1.456, and a moisture content. 0.035%.
The Role of Notaries in Making Limited Liability Company Legal Entity Deeds through the General Legal Administration System Sumari, Sumari; Ma'ruf, Umar
Jurnal Konstatering Vol 2, No 4 (2023): October 2023
Publisher : Master of Notarial Law, Faculty of Law, Sultan Agung Islamic University

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

Abstract

Registration of limited liability company legal entity deeded from a manual system to an electronic system or online is expected so that the registration or validation can run more efficiently and more effectively. Similar to the previous provisions, until now the process of making a request for registration into the General Law Administration System still requires the role of a notary. The purpose of this paper is to analyze: 1) The role of the notary in drawing up limited liability company legal entity deeds through the general legal administration system in Blora Regency. 2) The effectiveness of making and registering limited liability company legal entity deeds by a notary through the general legal administration system in Blora Regency. The approach method in this research is a sociological juridical approach. The specification of the research used is descriptive analysis research. Types of data using primary data and secondary data. Data collection by interview method and literature study. The data analysis method used is qualitative analysis. The research problems were analyzed using the theory of legal certainty and the theory of legal effectiveness with the results of the research concluding: 1) The role of the notary in making legal entity deeds of limited liability companies through the General Legal Administration system in Blora Regency, namely making deeds and making applications electronically through the general law administration system, because a notary deed that functions as an authentic deed must provide certainty and legal protection for the community and function as the most perfect means of evidence.2) The effectiveness of making and registering limited liability company legal entity deeds by a notary through the General Legal Administration System in Blora Regency is the registration of limited liability company deeds through the General Legal Administration System by a notary directly which strongly supports a faster and more effective registration completion process. Keywords: Administration; Company; Entity; System.
Co-Authors A. Alif Mardianto Adilah Aliyatulmuna Agus Budianto Agustina, Nur Indah Aldwinarta, Farrel Hafiz Aman Santos Aman Santoso Amanatin, Alfitia Dwi Andyka Medarda Pradana Annida Elfiana Citra Ardianty Antonia, Vonny Anugrah Ricky Wijaya Ciptawati, Endang Cylindrica, Vrisca Bella Dedek Sukarianingsih Devi Indrasari Mustopa Putri Dinar Rachmadika Baharintasari Dinar Rachmadika Baharintasari Dwi Ratna Wulandari Effendy Effendy Eli Hendrik Sanjaya Endang Budiasih Evi Susanti Fadila Abna Swari Faizah, Siti Farashinta Nadia Fauziah, Putri Nanda Fauziatul Fajaroh FITRIYAH, IDA Ganden Supriyanto Habiddin Hadi Nur Hadi Nur Hadi Nur Handoko Darmokoesomo I Wayan Dasna Ida Bagus Suryadarma Ida Bagus Suryadharma Ima Rosyida Indah Nur Pramesti Irsyadatun Ni’mah Izzah, Dewi Jalinan Jacky Anggara Nenohai Januarti, Wenny Kelvert Kong Kinanthi, Bilqis Rahma Lailatul Ilmiyah Lailatur Rizqiyah Liqanatul Putri Sholikah Ma'ruf, Umar Mahmudah, Siti Nur Mardhiyyah, Cut Ainul Mardianto, A. Alif Marfu'ah, Sitti Margaret Pandaleke Mauliana Nursafitri Maya Sari Muhammad Roy Asrori Mukhamad Nurhadi, Mukhamad Muntholib Munzil Nareswari, Tsalis Jauza Nazriati Nazriati dkk. Ni’mah, Irsyadatun Novi Andriani Novi Andriani, Novi Nur Arief Nugroho Nur Indah Agustina Nurin Fitriana Nursafitri, Mauliana Permatasari, Suryani Indah Prakasa, Yana Fajar Priska Yohanita Sodanango Purbo Suwasono Putri Hapsari, Mamila Putri Qori Utami Rachman, Ihsan Budi Ratna Kusumawardani, Ratna Retnosari, Rini Ridwan Joharmawan Rizky, M Rohman Fantusi Rohman Fantusi Ryansyah, Hardi Sakhi, Fillah M. Santa, Eldat Wira Santosa Santosa Setiawan, Nur Candra Eka Sholikah, Liqanatul Putri Siew Fan Wong Sin Yuan Lai Sin Yuan Lai Sinta Nur Laila Siti Marfuah, Siti Siti Marfu’ah SRI RAHAYU Suharti Suryani Indah Permatasari Syafiuddin Syafiuddin Teguh Wirawan Vrisca Bella Cylindrica Wahyu S. Pambudi Wahyu Setyo Pambudi Wele, Amonius Regino Wiwin Dwi Nurpitasari Yahmin Yahmin Yana Fajar Prakasa Yana Fajar Prakasa Yudhi Utomo Yulianto, Andik Yulisya Zuriatni Yuneta Dwi Yunisari Zelen Surya Minata Zhiying Zhu Zuniarto, Ahmad Azrul