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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Edufisika: Jurnal Pendidikan Fisika Chimica et Natura Acta Pharmacology and Clinical Pharmacy Research JURNAL PENDIDIKAN MIPA Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Integrated Science Education Journal TEACHING : Jurnal Inovasi Keguruan dan Ilmu Pendidikan Entalpi Pendidikan Kimia Jurnal Pengabdian Masyarakat Pinang Masak Molekul: Jurnal Ilmiah Kimia Journal of The Indonesian Society of Integrated Chemistry Jurnal Sains dan Kesehatan
Yusnaidar, Yusnaidar
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Social Sciences Other

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PENGARUH PENDEKATAN SAINTIFIK DALAM PEMBELAJARAN IPA TERPADU TERHADAP KEMAMPUAN KOGNITIF SISWA RISDALINA, RISDALINA; YUSNAIDAR, YUSNAIDAR
TEACHING : Jurnal Inovasi Keguruan dan Ilmu Pendidikan Vol. 3 No. 4 (2023)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/teaching.v3i4.2693

Abstract

Cognitive abilities are very important for students to master because they relate to students' way of thinking at various cognitive levels. The facts that occur in the field are that teachers only train cognitive abilities up to understanding level (C2), students' cognitive ability scores are low, and students are rarely involved in practical activities. For this reason, it is necessary to address how to improve students' cognitive abilities. The scientific approach and integrated science learning are considered to be able to improve students' cognitive abilities. Integrated science learning is science learning that is holistic and meaningful for students so that it is easier to understand. Apart from that, a scientific approach can be presented using experimental methods. Therefore, this research aims to determine the effect of the scientific approach in integrated science learning on students' cognitive abilities. This research uses a weak experimental design method, the one group pretest-posttest design type. The research was conducted at one of the state junior high schools in Bandung City with 25 class VII H students as samples. The research instruments used were pretest and posttest cognitive ability questions. The pretest and posttest results of students' cognitive abilities were analyzed using the paired t-test, obtaining a significance value of 0.0005 on sig. (2-tailed), this shows that the scientific approach in integrated science learning with the webbed model has a significant effect on increasing students' cognitive abilities. ABSTRAKKemampuan kognitif sangat penting untuk dikuasai oleh siswa karena berkaitan dengan cara berfikir siswa dalam berbagai tingkatan kognitif. Fakta yang terjadi di lapangan, guru hanya melatihkan kemampuan kognitif sampai level memahami (C2), skor kemampuan kognitif siswa rendah, dan siswa jarang dilibatkan pada kegiatan praktikum. Untuk itu perlu diatasi bagaimana untuk meningkatkan kemampuan kognitif siswa. Pendekatan saintifik dan pembelajaran IPA terpadu dianggap dapat meningkatkan kemampuan kognitif siswa. Pembelajaran IPA terpadu merupakan pembelajaran IPA yang holistik dan bermakna bagi siswa sehingga lebih mudah untuk dipahami. Selain itu pendekatan saintifik bisa disajikan menggunakan metode eksperimen. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pengaruh pendekatan saintifik dalam pembelajaran IPA terpadu terhadap kemampuan kognitif siswa. Penelitian ini menggunakan metode rancangan weak experimental tipe the one group pretest-posttest design. Penelitian dilakukan di salah satu SMP Negeri di Kota Bandung dengan 25 orang siswa kelas VII H sebagai sampel. Instrumen penelitian yang digunakan adalah soal pretest dan posttest kemampuan kognitif. Hasil pretest dan posttest kemampuan kognitif siswa dianalisis menggunakan uji paired t-test didapat nilai signifikansi 0,0005 pada sig. (2-tailed), hal ini menunjukkan bahwa pendekatan saintifik dalam pembelajaran IPA terpadu model webbed secara signifikan berpengaruh terhadap peningkatan kemampuan kognitif siswa.
Studi In Silico Senyawa Bioaktif Daun Miana (Coleus scutellariodes (L). Benth) sebagai Inhibitor Enzim Asetikolineterase (Ache) pada Alzheimer: In Silico Study of Miana (Coleus scutellariodes (L). Benth) Leaf Compounds as Inhibitor Acetylcholinesterase (Ache) Enzyme in Alzheimer’s Vitadella, Veronika; Bulan, Catherine Putri; Sinurat, Julius Alvin Novensius; Latief, Madyawati; Yusnaidar, Yusnaidar; Tarigan, Indra Lasmana
Jurnal Sains dan Kesehatan Vol. 6 No. 2 (2024): J. Sains Kes.
Publisher : Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25026/jsk.v6i2.2198

Abstract

Abstract Alzheimer's contamination is a neurodegenerative sickness brought about by a decline in the blend of acetylcholine because of the breakdown of acetylcholine into choline and the determination of acidic corrosive by the compound Acetylcholinesterase (Hurt). Compounds known to have heartbeat restraining developments are promising medications for the treatment of these contaminations. In this investigation, in-silico studies were done on the blend found in Miana (Coleus) further to see whether this combination could be utilized as a remedial application in the treatment of Alzheimer's illness utilizing sub-nuclear docking procedures. From the consequences of the examination, it is realized that the Pyrazolopyridine compound is the best medication contender with a limiting energy and stable limitation benefit of - 6.96 kcal/mol and 7.95 µm separately, with hydrogen securities happening in the destructive development of amino SER 293.   Keywords:          Alzheimer’s; In Silico; Miana   Abstrak Penyakit Alzheimer adalah infeksi neurodegenerative, dan terjadi karena menurunnya kombinasi asetilkolin dampak dari penguraian asetilkolin menjadi kolin dan derivasi asam asetat oleh senyawa Asetilkolinesterase (Hurt). Larutan yang diketahui memiliki gerakan penghambatan denyut merupakan obat yang menjanjikan untuk pengobatan infeksi ini. Dalam eksplorasi ini, studi in-silico dilakukan pada campuran yang ditemukan di Miana (Coleus) selanjutnya untuk melihat apakah campuran ini dapat digunakan sebagai aplikasi pengobatan dalam pengobatan penyakit Alzheimer dengan menggunakan strategi docking sub-atomik. Dari hasil penyelidikan diketahui bahwa senyawa Pyrazolopyridine adalah pesaing obat terbaik dengan energi ikatan dan keuntungan stabil pengekangan masing-masing - 6,96 kkal/mol dan 7,95 µm, dengan ikatan hidrogen terjadi pada penumpukan korosif amino SER 293.   Kata Kunci:         Alzheimer’s; In Silico; Miana
Pengembangan E-Book Materi Elektrokimia Berbasis Multipel Representasi Menggunakan 3D Pageflip Syahri, Wilda; Yusnaidar, Yusnaidar
Journal of The Indonesian Society of Integrated Chemistry Vol. 14 No. 2 (2022): JISIC (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.v14i2.21684

Abstract

Mata kuliah Kimia Fisika II di Prodi Pendidikan Kimia mencakup materi Elektrokimia yang bersifat abstrak, sehingga sulit dipahami mahasiswa hanya dengan penjelasan teori. Untuk itu, dikembangkan e-Book Materi Elektrokimia Berbasis Multipel Representasi menggunakan aplikasi 3D Pageflip dengan pendekatan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Instrumen yang digunakan meliputi angket dan lembar observasi untuk mengevaluasi efektivitas dan penerimaan e-Book oleh mahasiswa. E-book ini dirancang untuk membantu mahasiswa mempelajari dan memahami materi Elektrokimia secara mandiri melalui representasi makroskopik, mikroskopik, dan simbolik. E-book ini diharapkan dapat meningkatkan daya tarik, motivasi, dan prestasi belajar mahasiswa serta menjembatani keterbatasan pemahaman di kelas. Hasil penelitian ini adalah e-Book yang sesuai dengan kurikulum dan kaidah pendidikan yang berlaku
Development of a Metacognition-Based E-Book Using 3D Pageflip to Enhance Polymer Chemistry Literacy in Coordination Polymerization Reactions Yusnaidar, Yusnaidar; Syahri, Wilda
Journal of The Indonesian Society of Integrated Chemistry Vol. 16 No. 1 (2024): 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.v16i1.29509

Abstract

The development of a metacognition-based e-book using 3D Pageflip on coordination polymerization reaction materials aims to enhance students' polymer chemistry literacy. The Polymer course in the Chemistry Education Study Program covers various polymerization reactions essential for students in today's educational era. Polymers, including plastics, Styrofoam, nylon, and others, are crucial materials in various aspects of life. Due to the abstract nature of this subject, theoretical explanations are challenging for students to understand. A metacognition-based e-book is expected to assist students in self-learning, increasing flexibility in understanding polymerization reaction materials. This study employs the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation) and produces an e-book containing text, animations, videos, and music. Validation by experts indicates that the e-book is excellent in terms of content and design. Implementation among students shows that this e-book is effective in enhancing the understanding of coordination polymerization reactions. Thus, the e-book is expected to facilitate learning and improve students' polymer chemistry literacy. Keyword:        Science literacy, polymer chemistry, polymerization reaction, coordination polymerization.
Analisis Kebutuhan Pengembangan e-LKPD Berbasis STEM-PjBL pada Materi Koloid untuk Meningkatkan Kemampuan Berpikir Kreatif Siswa Linda, Desma; Yusnaidar, Yusnaidar; Syahri, Wilda; Triwahyudi, Sugeng
Jurnal Pendidikan Matematika dan Sains Vol. 11 No. 1 (2023): June 2023
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpms.v11i1.59399

Abstract

Ilmu kimia merupakan salah satu mata pelajaran IPA yang mempelajari tentang suatu fenomena yang berkaitan dengan kehidupan sehari-hari seperti materi koloid. Materi koloid sebagian bersifat kontekstual berhubungan erat  dikehidupan nyata. Salah satu model pembelajaran yang dapat diterapkan pada pembelajaran  kimia yakni model pembelajaran STEM-PjBL. Tujuan dilakukannya penelitian ini untuk mengetahui analisis kebutuhan pengembangan e-LKPD berbasis STEM-PjBL pada materi koloid untuk meningkatkan kemampuan berpikir kreatif siswa. Penelitian ini merupakan penelitian desktiptif kualitatif dengan menggunakan metode survei melalui angket kebutuhan peserta didik dan wawancara bersama guru kimia di SMAN 2 Muaro Jambi. Data yang didapatkan kemudian dianalisis secara deskriptif.  Dari hasil penelitian  menunjukkan bahwa 66,7% peserta didik merasa kesulitan dalam mempelajari materi koloid. Semua peserta didik dan guru sangat setuju jika dikembangkan bahan ajar berupa e-LKPD berbasis STEM-PjBL sehingga dapat meningkatkan kemampuan berpikir kreatif peserta didik serta dapat dijadikan sebagai bahan ajar penunjang pembelajaran oleh peserta didik baik disekolah maupun secara mandiri dirumah. Kata Kunci: e-LKPD, STEM-PjBL, Koloid, Kemampuan berpikir kreatif
Modification of Microcrystalline Cellulose (MCC) Derived from Liberica Coffee Husk Using Saponins for Controlled Release of Dexamethasone Tiara, Tiara; Yusnaidar, Yusnaidar
Journal of The Indonesian Society of Integrated Chemistry Vol. 17 No. 2 (2025): 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.v17i2.48822

Abstract

Microcrystalline cellulose (MCC) is a partially depolymerized cellulose derivative obtained through the hydrolysis of α-cellulose. However, MCC has limitations in drug delivery systems, particularly for poorly water-soluble (hydrophobic) drugs; therefore, MCC modification is required to improve the loading and delivery efficiency of such compounds. This study aimed to modify MCC produced from the hydrolysis of Liberica coffee husk cellulose to enable its application as a carrier for hydrophobic drugs. The modification was carried out using saponins, followed by dexamethasone loading into MCC–saponin and unmodified MCC using ethanol as the solvent, with incubation for 24 h. The MCC–saponin system exhibited a substantially higher dexamethasone loading capacity (23.436 mg/g) than unmodified MCC (6.768 mg/g). In vitro drug release results further showed that dexamethasone release from MCC–saponin increased within 60–180 min.
Analisis Kebutuhan Pengembangan Media Pembelajaran Interaktif Berbantuan Genially Pada Materi Sistem Koloid Terintegrasi Etnosains untuk Menumbuhkan Kemampuan Berpikir Kritis Putri, Viga Aprilia; Yusnaidar, Yusnaidar; Ekaputra, Firdiawan; Syahri, Wilda; Epinur, Epinur; Marlina, Desy
Entalpi Pendidikan Kimia Vol 7 No 1 (2026)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/epk.v7i1.606

Abstract

The colloidal system is a high school chemistry topic that examines the characteristics of fine particles within a dispersing medium. This material is often considered difficult by students due to its abstract nature, requiring a deep understanding of the types and properties of colloids and their daily applications. This condition indicates a need for innovation in learning media capable of connecting scientific concepts with contexts that are easier for students to understand. Through an ethnoscience approach that integrates local knowledge, students are encouraged to understand the material contextually and in relevance to local culture. This study aims to analyze the need for developing Genially-assisted interactive learning media on colloidal systems integrated with ethnoscience, focusing on fostering critical thinking skills. The research method used is descriptive qualitative, with data collection techniques consisting of questionnaires and interviews with students and chemistry teachers at SMA Negeri 17 Muaro Jambi. Data were analyzed descriptively. The results of the needs analysis show that 60.7% of students experience difficulty understanding colloidal material and 89.3% of students require media with a combination of text, images, video, and animation. Furthermore, both students and teachers strongly agree with the development of Genially-assisted interactive learning media that can be used at school or at home to support learning processes that foster critical thinking skills.
Pengaruh Penerapan Model Pembelajaran Inkuiri Terbimbing terhadap Kemampuan Literasi Sains dan Hasil Belajar Murid pada Materi Termokimia Fajri, Rahmawati; Naswir, Muhammd; Yusnaidar, Yusnaidar; Hasibuan, Muhammad Haris Effendi; Ekaputra, Firdiawan
JURNAL PENDIDIKAN MIPA Vol. 16 No. 2 (2026): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v16i2.4209

Abstract

Penelitian ini muncul karena masalah rendahnya kemampuan membaca dan memahami ilmu pengetahuan (literasi sains) serta hasil belajar siswa di topik termokimia. Hal ini disebabkan pembelajaran yang masih banyak bergantung pada guru sebagai pusatnya. Sebagai solusi, salah satu cara yang bisa dicoba adalah pendekatan belajar inkuiri terbimbing, di mana siswa lebih aktif ikut serta mencari tahu konsep sendiri lewat proses penelusuran seperti ilmuwan sungguhan.Tujuan utama penelitian ini adalah mengukur dampak penggunaan model inkuiri terbimbing terhadap literasi sains dan hasil belajar siswa di materi termokimia. Penelitian dilakukan dengan pendekatan kuantitatif, pakai metode quasi-eksperimen bentuk only posttest control group (tanpa pretest). Populasi penelitian adalah semua siswa kelas XI Fase F di SMA Negeri 17 Muaro Jambi pada tahun ajaran 2025/2026. Sampel diambil pakai teknik purposive sampling, lalu dibagi dua kelompok: kelas eksperimen dan kelas kontrol, masing-masing berisi 26 siswa. Instrumen yang dipakai meliputi tes literasi sains dan ujian hasil belajar. Data diolah lewat uji normalitas, uji keseragaman, serta uji hipotesis menggunakan independent sample t-test. Hasilnya, kelas eksperimen unggul dengan skor rata-rata literasi sains 69,23, lebih tinggi dari kelas kontrol yang 62,05 (nilai signifikansi 0,037 < 0,05). Begitu juga hasil belajar: kelas eksperimen rata-rata 64,39, lawan kelas kontrol 59,83 (signifikansi 0,044 < 0,05). Dengan demikian, model inkuiri terbimbing ini berdampak positif dan nyata pada kemampuan literasi sains serta hasil belajar siswa di termokimia.
The Rasch Model: Implementation of Physics Learning Evaluation Instrument Based on Higher Order Thinking Skills Irmayanti, Rika; Rusdi, Muhammad; 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.
Co-Authors Afrida Afrida Alfi Khatib, Alfi Arum, Dewi Asmiyunda, Asmiyunda Azzahra, Miftahul Zannah Bela, Anisa Bulan, Catherine Putri Dewi, Tribuana Tungga Epinur Epinur Ernawati, Dwi Wiwik Evita Anggereini Faizar Farid Fajri, Rahmawati Firdiawan Ekaputra Hasibuan , M Haris Effendi Husna, Naimul Indra Lasmana Tarigan Irmayanti, Rika Jamaludin Al-Anshori Linda, Desma M. Yogi Riyantama Isjoni Madyawati Latief Marlina, Desy Melani, Fitria Muhammad Haris Effendi Hasibuan Muhammad Rusdi Naswir, Muhammd Natasya, Dian Nelson Nurjannah, Sofia Oktavioni, Marsella Prabawa, Satria Putri, Silvi Ayudiah Putri, Viga Aprilia Ramadhan, Ilham Ifandi Risdalina Seputri, Vika Sinurat, Julius Alvin Novensius Sulaksono, Aulia Sanova Sutrisno, Sustrisno Tarigan, Indra L. Tiara, Tiara Triwahyudi, Sugeng Vitadella, Veronika Warni, Tri Wilda Syahri Yusnelti Yusnelti Zurweni Zurweni