Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Edumatsains

Peningkatan Kemampuan Berfikir Kritis Siswa Melalui Pembelajaran Eksperimen pada Materi Larutan Elektrolit dan Non Elektrolit St Fatimah Azzahra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 1 (2019): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i1.1046

Abstract

This research is aims to know about the improvement of chemistry learning outcomes of grade X on electrolyte and non electrolyte solutions academic year 2018/2019 through learning experimental method. This research is a class action research couduct in three cycles. The subject of this research is all students of grade X Darussalam Tangerang Selatan of 26 students. Data collection techniques in this research are test score of critical thinking skills. The results of the research that the application of learning experimental method can improve students’ critical thinking skills on topics electrolyte and non electrolyte. Based on the results of the first cycle, the second and the third cycle always increase. The average critical thinking ability in fisrt cycle on is 34,61%. In the second cycle the increase in students’ critical thinking skills increased to 73,07% and completeness in the third cycle. The results of this class action research are the learning experimental method can improve students’ critical thinking skills of students in grade X Darussalam Tangerang Selatan on the electrolyle and non electrolyte solutions. Keywords: critical thinking skills, experimental method
Analisa Docking Cyanidin 3,5-di-(6- malonylglucoside) terhadap Reseptor Plasmodium falciparum Enoyl Acyl Carrier Protein Reductase (PfENR) sebagai Anti Malaria Nya Daniaty Malau; St Fatimah Azzahra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 1 (2019): Juli
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i1.1048

Abstract

Various efforts were made to develop a more effective discovery of malaria drugs. One of them is by utilizing computer technology. The use of computers in the discovery of new drugs aims to improve the efficiency of simulation and calculation processes in designing drugs (drug design). The purpose of this study was to analyze Cyanidin 3,5-di- (6- malonylglucoside) compounds against the Plasmodium falciparum Enoyl Acyl Carrier Protein Reductase (PfENR) receptor as Anti Malaria. The research stages are first, the search for ligand and receptor compounds. Second, the preparation stage of ligand compounds and receptors. Third, the docking simulation stage uses vina autodock. Finally, the analysis stage of the docking results. The results of the study is Cyanidin 3,5-di- (6 malonylglucoside) ligand compounds that have good stability against the Plasmodium falciparum Enoyl Acyl Carrier Protein Reductase enzyme (PfENR. This can be seen from the low bond energy, which is -10.7 kcal / mol. Cyanidin 3,5-di- (6 malonylglucoside) ligand has a good bond between ligand and receptor to the stability of the Plasmodium falciparum Enoyl Acyl Carrier Protein Reductase enzyme (PfENR because there are 6 hydrogen bonds. 5 bonds between hydrogen and receptor and one bond between hydrogen and ligand The interaction between ligands and receptors that are also formed is stable seen in the hydrophobic interactions and electrostatic interactions formed.The residues that form hydrophobic interactions are ALA217, ALA319, LEU315, MET261, TYR277 and TYR111 residues, while the electrostatic bonds are residues ASP107, SER317, SER215, GLY106 and LYS285 From this interaction it can be seen that the Cyanidin 3.5 ligand -di- (6 malonylglucoside) is stable to be used as an inhibitor of the Plasmodium falciparum Enoyl Acyl Carrier Protein Reductase (PfENR) enzyme. From some parameter analysis above, it can be concluded that Cyanidin 3,5-di- (6 malonylglucoside) ligand compound has good stability as an antimalarial drug candidate. Keywords: docking, drug design, ligan, reseptor
Meningkatkan Kemampuan Bernalar Siswa SD pada Pembelajaran IPA dengan Pendekatan Pembelajaran Saintifik dan Kegiatan Storytelling Septina Severina Lumbantobing; St Fatimah Azzahra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1387

Abstract

The purpose of this study is to get a picture of the increase in reasoning ability of students who get science learning with a scientific approach combined with storytelling activities. This research was conducted at Elementary School 07 Jakarta semester 2019/2020. This type of research is a quasi experiment with the research design used one group pretest posttest group design. The sample in this study amounted to 50 students. The instrument used was a test of reasoning ability for subject matter always saving energy in the form of an essay test of 15 questions. The aspects of reasoning ability studied consisted of aspects of identifying, explaining and analyzing. The results showed the students' reasoning ability increased by 0.57 in the medium category. For the 3 aspects of reasoning ability studied, there was an increase in the identifying aspect by 46%, the explaining aspect by 94% and the analysis aspect by 88%. Keywords : reasoning ability, scientific approach, storytelling