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All Journal Jurnal Pendidikan IPA Indonesia Jurnal Pendidikan Kimia (JPKim) Indonesian Journal of Pure and Applied Chemistry SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan IRJE (Indonesian Research Journal in Education) Integrated Science Education Journal Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Pena: Jurnal Pendidikan Bahasa dan Sastra Journal of The Indonesian Society of Integrated Chemistry Biodik: Jurnal Ilmiah Pendidikan Biologi
Yusnaidar Yusnaidar
Universitas Jambi
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Incomplete Explanation in Determining Oxidation Number: A Case Study on Chemistry Program Students Basuki, R.; Amanda, H.; Bemis, R.; Lisma, A.; Yusnaidar, Y.
Jurnal Pendidikan IPA Indonesia Vol 7, No 3 (2018): September 2018
Publisher : Program Studi Pendidikan IPA Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpii.v7i3.13251

Abstract

The term “oxidation number” and related concept such as “electronegativity” and “formal charge” appear frequently in both elementary and advance chemistry text. However, it is evident from the literature (or textbooks) that these terms are often viewed to be synonymous. Incomplete explanation of the fundamental concept of oxidation number can lead that conclusions pertaining to such a misleading interpretation. This research was conducted to review the concepts from common used high school chemistry textbooks and these concepts were then transformed to 6 number open minded problems. These problems were then tested to 40 first semester chemistry program students in the University of Jambi who joining Basic Chemistry course. The result was about 80% of students give the right answer in determining oxidation number (problem number 1). But, in the certain molecule (problem number 2) they can’t determine correctly because they couldn’t use the “Rule” from initial understanding in high school. For the next problem (4a), none of the students give the right oxidation number of an atom and all of them can’t explain precisely correlation among oxidation number, electronegativity, and formal charge. The intent of this paper is to clarify the notion of oxidation number, electronegativity, and formal charge, describe their relationship (especially for high school chemistry textbooks), and criticize upon misleading application.
A Survey on Investigating Data-Sharing Behavior among STEM Researchers: The Context of a Developing Country Wilda Syahri; Yusnaidar Yusnaidar; Muhaimin Muhaimin
Indonesian Research Journal in Education |IRJE| Vol. 5 No. 2 (2021): IRJE |Indonesian Research Journal in Education|
Publisher : Universitas Jambi, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.456 KB) | DOI: 10.22437/irje.v5i2.15341

Abstract

Based on an extended theory of planned behavior (TPB), this study focused on five exogenous constructs (perceived benefits, facilitating condition, normative belief, behavioral belief, and control belief) that was established to predict behavioral intention and behavior of data-sharing. The research model was tested with 157 Indonesian researchers from science, technology, engineering, and mathematics (STEM). We applied the partial least squares (PLS) techniques to analyze the data. Seven out of eleven hypotheses are supported based on the significance test in through the PLS-SEM procedure. The study’s findings show that the proposed extended TPB is a valid and reliable framework for describing the data-sharing behavior of STEM researchers. This paper facilitates an advanced investigation through PLS-SEM approaches toward behavioral intention and behavior regarding data-sharing; the findings are among the first elaborated data-sharing report in the Indonesian context, a country with more than 200 thousand researchers.
Literasi Menulis Ilmiah Guru-Guru IPA di Muaro Jambi Bambang Hariyadi; Yusnaidar Yusnaidar; Della Oktivia Armitha
Pena : Jurnal Pendidikan Bahasa dan Sastra Vol. 12 No. 1 (2022): Pena: Jurnal Pendidikan Bahasa dan Sastra
Publisher : Program Studi Pendidikan Bahasa dan Sastra Fakultas Keguruan dan Ilmu Pendidikan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.264 KB) | DOI: 10.22437/pena.v12i1.17731

Abstract

Literasi merupakan keterampilan dalam mengolah kata, angka dan informasi yang diperoleh melalui kegiatan membaca dan menulis. Kegiatan literasi menjadi salah satu kegiatan yang menunjang peningkatan mutu pendidikan. Penguasaan literasi yang baik tidak hanya dibutuhkan oleh siswa, tetapi juga perlu dimiliki oleh guru agar mampu mengembangkan materi pembelajaran yang baik sekaligus mendukung pengembangan karir profesionalnya. Untuk itu dilakukan penelitian mengenai literasi menulis ilmiah guru-guru IPA di Kabupaten Muaro Jambi. Penelitian dilakukan melalui observasi, diskusi terfokus dan angket yang dibagikan secara online. Hasil penelitian menunjukkan bahwa guru masih memiliki kesulitan dalam menulis ilmiah. Sebanyak 47% guru diketahui belum pernah menulis ilmiah. Rendahnya literasi guru juga sejalan dengan rendahnya aktivitas membaca yang jarang dilakukan. Hanya 6% guru yang secara rutin melakukan kegiatan membaca setiap harinya. Kesulitan guru dalam menulis ilmiah salah satunya disebabkan karena rendahnya tingkat literasi guru.
Meningkatkan Keterampilan Guru SMAN 2 Sungai Penuh Dalam Mempublikasikan Artikel Ilmiah Ke Jurnal Bereputasi Abu Bakar; Aulia Sanova; Yusnaidar Yusnaidar; Firdiawan Ekaputra
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 7 No. 4 (2022): December
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v7i4.866

Abstract

Berdasarkan hasil survey, sebagian kalangan pendidik, dalam membuat dan mempublish sebuah artikel ilmiah yang bereputasi tidak mudah. Hal ini disebabkan karena masih terbatasnya pengetahuan para guru terkait teknik penulisan artikel yang baik dan benar serta kurangnya sumber informasi yang tersedia pada lingkungan pendidikan formal terutama dalam penelusuran dan trik dapat menembus jurnal-jurnal yang bereputasi. Melalui forum workshop, tim pengabdi berupaya memfasilitasi membantu kesulitan guru dalam mempublish sebuah jurnal. Peserta kegiatan pengabdian ini adalah para guru-guru bidang studi SMAN 2 Sungai Penuh sebanyak 18 peserta. Implementasi pelaksaanaan kegiatan menggunakan metode ceramah, diskusi, tanya jawab, praktek penyusunan dan pendampingan dengan teknik evaluasi penilaian selama proses kegiatan bersifat refleksi, responsif, feedback dan persepsi peserta. Sebelum kegiatan dilakukan, respon peserta mengenai pemahaman tentang menulis jurnal di kategorikan cukup baik, hal ini dikarenakan tidak semua peserta memiliki pengetahuan cara publikasi agar bisa tembus diskala nasional maupun internasional. Setelah diberi pebekalan, diakhir kegiatan para peserta diminta kembali responnya. Hasil menunjukkan rata-rata tingkat pemahaman peserta sudah pada kategori baik. Berdasarkan hasil tersebut, dapat disimpulkan guru telah memahami bagaimana membuat jurnal yang baik sehingga bisa publish, ini menunjukkan indikasi jika guru-guru sudah mampu dan siap menghasilkan sebuah jurnal. Improving Highschool Teachers’ Academic Article Publishing Skills in SMAN 2 Sungai Penuh  Based on preliminary survey, some educators, in creating and publishing a reputable journal is not easy, this is due to the limited knowledge of teachers regarding good and correct methodological techniques for writing articles and the lack of available sources of information in the formal education environment, especially in tracing and tricks. can be acceptable in reputable journal. Through this workshop forum, the service team seeks to facilitate teachers' difficulties in publishing a journal. The participants of this community service are 18 teachers at SMAN 2 Sungai Penuh, Jambi. The implementation of the activity uses the lecture method, discussion, question and answer, practice of preparation and assistance with evaluation techniques during the activity process which is reflection, responsive, feedback and participant perception. Before the activity was carried out, the participants' responses regarding understanding about journal writing were categorized as quite good, this was because not all participants had knowledge of how to publish so that they could be published on a national or international scale. After being given supplies, at the end of the activity the participants were asked to return their responses. The results show that on average the participants are in the category of good level of understanding, it can be concluded that the teacher already understands how to make a good journal so that it can publish, this shows an indication if the teachers are able and ready to produce a journal.
The effect of the application of the think talk write model and self-efficacy on students' critical thinking ability in the material reaction rate in SMA Adhyaksa 1 Jambi city Intan Aulia Sari; Haryanto Haryanto; Yusnaidar Yusnaidar
Jurnal Pendidikan Kimia (JPKIM) Vol 14, No 3 (2022): December
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.208 KB) | DOI: 10.24114/jpkim.v14i3.39405

Abstract

The ability to think critically is very important to support the progress of education. In developing good mastery of learning concepts, students' critical thinking skills are needed. The development of critical thinking skills can make students give up, so it takes a firm belief in students' abilities in overcoming difficulties so they can become more advanced. This study aims to see the effect of the Think Talk Write (TTW) and Self Efficacy on students' critical thinking skills in the matter of reaction rate. The sample used consisted of 2 classes at SMA Adhyaksa 1 Jambi City. The data collection instruments used were observation sheets, self-efficacy, and essay tests. The data analysis used was 2-way ANOVA. The results showed that learning using the TTW and Self Efficacy affected students' critical thinking skills with an average of 71% from meeting 1, meeting 2, and meeting 3. Then there is an interaction between the Think Talk Write and Self Efficacy on students' critical thinking skills seen from a significance value of 0.000 <0.05.Keywords:Critical thinking; Reaction rate; Self-efficacy; Think talk write
Fabrication of photocatalyst film based on TEMPO-oxidized cellulose nanofiber Yusnaidar Yusnaidar; Wilda Syahri; Harizon Harizon; I Putu Mahendra
Jurnal Pendidikan Kimia (JPKIM) Vol 15, No 1 (2023): April
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1825.714 KB) | DOI: 10.24114/jpkim.v15i1.44183

Abstract

The powerful performance of TiO2 and its doped as photocatalyst material initiated the finding of new technique that efficient and effective to degrade the organic pollutant, i.e., azo dyes. This study examined photocatalyst film's photoactivity, TEMPO-oxidized cellulose-containing N-TiO2 (TOC/N-TiO2), on the degradation of azo dyes. TEMPO-oxidized cellulose, which has a negative charge, was sequentially mixed and stirred in the suspension of TiO2 and doped TiO2. This experiment utilized several instruments to determine the physicochemical properties of the photocatalyst film. The UV-DRS and diffractogram data confirmed the anatase phase as the only phase found in N-TiO2, which has a lower bandgap value than the anatase TiO2. These data demonstrated the superior photocatalytic of TOC/ N-TiO2 against azo dyes.Keywords: Doped-TiO2; Film; Photocatalyst; TEMPO-oxidized cellulose nanofiber
The Rasch Model: Implementation of Physics Learning Evaluation Instrument Based on Higher Order Thinking Skills Rika Irmayanti; Muhammad Rusdi; Yusnaidar Yusnaidar
Integrated Science Education Journal Vol 4 No 2 (2023): May
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v4i2.325

Abstract

Purpose of the study: This research was conducted to analyze the test instruments used to measure students' HOTS abilities on static fluid material at Senior high school 2 Jambi City. Methodology: The evaluation instrument provided was in the form of 20 items of two-tier multiple choice questions related to static fluid material. The Rasch model is used to get fit items. This analysis was carried out with the help of Ministeps software. Respondents in this study were 36 students of class XI MIPA 1 Senior high school 2 Jambi City. Main Findings: From the output of the Ministeps program, the results obtained were 20 questions according to the Rasch model with an average Outfit MNSQ score for person and item respectively 0.94 and 0.94. While the Outfit ZSTD values ​​for persons and items are 0 and -0.1 respectively, while the reliability of the instrument expressed in Cronbach's alpha is 0.79. Novelty/Originality of this study: The evaluation instrument used for physics subjects on static fluid material is fit with the Rasch model. so that the instrument meets the criteria for use.
REVIEW SENYAWA BIOAKTIF DAN KONSTITUEN KIMIA DARI TANAMAN COLEUS SEBAGAI KANDIDAT OBAT (REVIEW OF BIOACTIVE COMPOUNDS AND CHEMICAL CONSTITUENTS FROM COLEUS PLANTS AS DRUG CANDIDATES) Dian Natasya; Marsella Oktavioni; Yusnaidar Yusnaidar; Indra Lasmana Tarigan
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 2 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i2.65149

Abstract

Miana plants (Coleus) are plants with compound interest types. Miana leaves have various bioactive compounds and are widely used to treat various diseases such as fever, colds, coughs, headaches, asthma, constipation, and skin diseases. There are several types of miana plants, such as Coleus scutellarioides (L.) Benth., Coleus aromaticus Benth., Coleus atropurpureus (L.) Benth. and Coleus blumei benth. This review aims to review the content of bioactive compounds and chemical constituents of the plant and its potential as a drug candidate. The method applied to the review articles is in the form of literature studies from national and international journals. Based on the data used, the n-hexane extract of miana leaves found 11 chemical compounds. Then based on the phytochemical screening of miana plants, several bioactive compounds were produced such as sterols, terpenoids, alkaloids, phenols, flavonoids, amino acids, glycosides, lactones, catechols, and tannins. The function of the Coleus aromaticus plant is as an antioxidant, antiepileptic, antiurolytic, anticancer, antidiabetic, anthelmintic, antiviral, antiprotozoal activity, the inhibitory activity of microorganisms, against digestive diseases, respiratory disorders, and against cardiovascular disorders
PELATIHAN PEMBUATAN ALAT PERCOBAAN TEKANAN ZAT CAIR BAGI GURU-GURU IPA SMPN 1 KABUPATEN MUARO JAMBI Sri Purwaningsih; Yusnaidar Yusnaidar; Wida Syahri; Muhammad Haris Effendi Hsb; Neneng Lestari; Edi Yuversa
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 4 (2023): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i4.19922

Abstract

ABSTRAKTekanan zat cair dapat dipelajari melalui percobaan, yang memerlukan alat percobaan untuk mempelajarinya, penggunaan alat percobaan tekanan zat cair sangat minim digunakan di sekolah, hal ini disebabkan para guru belum mengetahuinya, terutama di SMP N 1 kecamatan Jambi luarkota Kabupaten  Muaro Jambi yang menyebabkan kurang optimalnya proses pembelajaran IPA di sekolah tersebut. Pengabdian kepada masyarakat ini memiliki tujuan untuk penerapan dan mengadakan pelatihan kepada guru-guru di sekolah tersebut dengan membuat alat percobaan praktikum tekanan zat cair  yang telah didesain oleh dosen dan teknisi di lab fisika universitas Jambi. Pelaksanaan pengabdian pada masyarakat ini terdiri dari beberapa tahap yaitu studi pendahuluan yang terkait dengan analisis situasi di sekolah dan analisis permasalahan mitra, diantaranya adalah kurangnya pengetahuan guru  membuat dan pengguanaan alat percobaan praktikum tekanan zat cair. Program yang dilakukan adalah demonstrasi, dan membuat alat percobaan praktikum tekanan zat cair. Dari hasil pengabdian ini diperoleh tanggapan dari guru bahwa guru sangat antusias mengikuti program yang telah dilaksanakan, guru telah dapat menggunakan alat percobaan praktikum tekanan zat cair. Kata kunci: alat percobaan praktikum; tekanan zat cair; SMPN 1 Muaro Jambi. ABSTRACTLiquid pressure can be studied through experiments, which require experimental equipment to study it. The use of liquid pressure experimental equipment is very minimal in schools, this is because teachers don't know about it, especially at SMP N 1, Jambi sub-district, out of town, Muaro Jambi Regency, which causes sub-optimality. science learning process at the school. This community service aims to implement and provide training for teachers at the school by making practical liquid pressure experiment equipment that has been designed by lecturers and technicians in the physics lab at Jambi University. The implementation of this community service consists of several stages, namely preliminary studies related to situation analysis at school and analysis of partner problems, including the teacher's lack of knowledge in making and using liquid pressure practical experiment equipment. The program carried out is a demonstration, and making practical experimental equipment for liquid pressure. From the results of this service, a response was obtained from the teacher that the teacher was very enthusiastic about participating in the program that had been implemented, the teacher was able to use the liquid pressure practical experiment equipment. Keywords: practical experimental equipment; liquid pressure; State Junior High School 1 Muaro Jambi.
Aktivitas Antimalaria Ekstrak Daun Macaranga gigantea Muhaimin Muhaimin; Yusnaidar Yusnaidar; Hilda Amanda
Journal of The Indonesian Society of Integrated Chemistry Vol. 10 No. 2 (2018): Journal of The Indonesian Society of Integrated Chemistry
Publisher : Pendidikan Kimia FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jisic.v10i2.6581

Abstract

[ Antimalaria Activity of Macaranga gigantea Leaves Extracts ] Penggunaan tanaman obat tradisional untuk mengobati penyakit malaria yang disebabkan oleh Plasmodium, saat ini makin meningkat, seiring dengan resistensi obat dan meningkatnya harga obat serta efek samping penggunaan obat modern. Tumbuhan Macaranga gigantea memiliki fungsi ekologi yang unik antara lain sebagai tumbuhan pelopor dengan kemampuan adaptasi morfologi dan fisiologis yang baik terhadap kondisi ekstrim dalam menangani stres alami karena hama, suhu dan sinar UV. Sehingga spesies tanaman Macaranga gigantea pada hutan memiliki sistem biokimia yang unik dan beragam senyawa bioaktif alami baru diproduksi dengan berbagai aktivitas seperti antimikroba, antioksidan dan antivirus. Hasil pengujian terdahulu terhadap bioaktivitas ekstrak metanol daun tumbuhan Merkubung (Macaranga gigantea) menunjukkan adanya aktivitas antimalaria. Penelitian ini bertujuan untuk mendapatkan fraksi aktif antimalaria dari daun Merkubung (Macaranga gigantea). Untuk itu pada penelitian ini dilakukan fraksinasi ekstrak metanol daun Merkubung (Macaranga gigantea) dengan menggunakan pelarut organik yang berbeda kepolarannya, dilanjutkan dengan uji bioaktivitas antimalaria menggunakan Plasmodium berghei. Hasil penelitian menunjukkan fraksi etanol daun Merkubung (Macaranga gigantea) memiliki aktivitas antimalaria yang lebih baik dari fraksi lain. Berdasarkan hasil penelitian daun Merkubung (Macaranga gigantea) sebagai kandidat baru sumber obat antimalaria.
Co-Authors Abu Bakar Agus Subagyo Amanda, H. Aulia Sanova Bambang Hariyadi Basuki, R. Bemis, R. Della Oktivia Armitha Dian Natasya Edi Yuversa Fatria Dewi Firdiawan Ekaputra Harizon Harizon Haryanto Haryanto Hilda Amanda I Putu Mahendra Indra Lasmana Tarigan Intan Aulia Sari Lestari, Neneng Lidia Siswanti Lisma, A. Marsella Oktavioni Meri Suryani Muhaimin Muhaimin Muhaimin Muhaimin Muhammad Haris Effendi Hasibuan Muhammad Rusdi Raisha Amayati Aulya Rayandra Asyhar Rika Irmayanti Risdalina Siregar, Risdalina Sri Purwaningsih Wida Syahri Wilda Syahri Wilda Syahri Winda Sitia Elisabet Br Sinaga Zuwena Apdolipah