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Jurnal Penelitian Pendidikan IPA (JPPIPA)
Published by Universitas Mataram
ISSN : 24602582     EISSN : 2407795X     DOI : -
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics
Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching in the field of science. The Science Educational Research Journal is published twice in a year in January and July editions. The editors receive writing in Indonesian or English, either from the university or from outside the university.
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Articles 82 Documents
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Search results for , issue "Vol 9 No 2 (2023): February" : 82 Documents clear
Design of Control System Trainer Based on IoT as Electronic Learning Media for Natural Science Course Mochammad Sukardjo; Vina Oktaviani; Siska Tawari; Iqbal Alfajar; Ilmi Zajuli Ichsan
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3097

Abstract

The development of controller system trainer based on Internet of Things (IoT) is one of the online learning media for practical activities that can motivate students in the natural science learning process so the student’s competence in learning can be achieved. One indicator of quality education is that their alumnus has a good knowledge, skills and attitudes. This study aims to develop an IoT-based trainer controller systems as a learning media in electronic 2 of natural science course. The trainer control system in this study used a website developed in accordance with the electronic 2 course which is connected to the trainers in the Electronic’s Laboratory via arduino uno microcontroller on trainer. This control system trainer is a development of basic physical law theory that emphasizes Kirchoff's laws using Maxwell's equations. Where the discussion in the electronics course 2 emphasizes the working principle of transistors. The research method used is the Research and Development (R&D) method with the product development model used is the Borg and Gall model. Product testing describes the design of assessment, type of data, data collection instruments and data analysis techniques. The instrument used in this study is a questionnaire for the material expert test and the media expert test. The data analysis technique used the content validity ratio (CVR) method. Based on the test result of material experts and media experts, the result of high validity was obtained. The result of blackbox testing get 100% results. Based on the test results, it can be concluded that the tool can work well which can remotely from a far using Arduino Mega and ESP8255 with the delay about 2 seconds. The test results for students' psychomotor skills get an average of 63.20 which means Good. So that this trainer control system can be used as a student independent learning media in natural science course
Analysis of Early Childhood Pre-Service Teacher's Science Concepts Comprehension Based On Their Science Process Skill Ni Luh Putu Nina Sriwarthini; Baik Nilawati Astini; Gunawan Gunawan
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3241

Abstract

Science concepts comprehension is a foundation that allows students to create thinking constructions to another related concept or more complex concepts, facts, laws, principles, and theories in science. Understanding the concept of science is one of the important things required by early childhood education pre-service teachers as professional and competent educators in their fields. This research is an ex-post-facto research, with the aim of analyzing science concepts comprehension based on science process skills of the early childhood education pre-service teachers, especially on the subjects of the diversity of living things and environmental pollution. The subjects in this study were early childhood education students in semester VI of the 2021/2022 academic year. Analysis of science concept comprehension was carried out using the Certainty of Response Index (CRI) method. The results showed: 1) The Comprehension of Science concepts of early childhood education pre-service teachers with the criteria of understanding the concept (PK) is at 81.75%, not understanding the concept (TPK) at 4,90%, and misconceptions (M) at 13.34%; 2) The comprehension of science concept of early childhood education pre-service teachers based on high category science process skills are better than the science concept comprehension of early childhood education pre-service teachers with low category science process skills. The data obtained confirm that the comprehension of science concepts in early childhood education pre-service teachers is high. The comprehension of science concepts that owned by early childhood education pre-service teachers is directly proportional to their science process skills, the higher the science process skills of early childhood education pre-service teachers, the higher their science concepts comprehension.
The Influence of Inquiry Learning on Concept Mastery Ability and Physics Problem Solving Ability of Students on Work and Energy Material Dedi Sapriyadin; Sutopo Sutopo; Hari Wisodo
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3253

Abstract

The aim of the study was to determine differences in students' concept mastery abilities and students' problem solving abilities in the material of effort and energy using inquiry learning with students who learned using conventional learning as well as the correlation between concept mastery abilities and students' energy and effort problem solving abilities. This research is a quantitative research with a Quasi Experiment research design and the research design is a nonequivalent control group design. This study involved an experimental class that used the Inquiry learning model with learning stages according to the Inquiry learning model syntax and a control class that used conventional learning with learning stages according to the learning model used by the teacher when teaching. Taking the research sample using random sampling technique. The data collection instrument used tests with physics concept mastery skill instruments in the form of 10 multiple choice questions and 5 physics problem solving questions in the form of description questions. The test data were obtained through the pretest and posttest which were then subjected to prerequisite tests. The prerequisite test results stated that the data were normally distributed, homogeneous, and the test was linear. The data that has passed the prerequisite test is then used to test the hypothesis using Ancova. The results of the data analysis test showed that there were significant differences in students' concept mastery and problem-solving abilities between classes using Inquiry learning and classes using conventional learning. In addition, the results of the research data analysis show that there is a correlation between the ability to master the concept and the ability to solve problems, which means there is a relationship between the ability to master the concept and the ability to solve problems. The conclusion of the research shows that inquiry learning on work and energy materials can improve students' concept mastery and problem-solving abilities
Stability of Anti-Insect Ingredient from Jayanti Plants (Sesbania sesban) for Integrated Control of Cabbage Pest Suripto Suripto; Hilman Ahyadi; Rachmawati Noviana Rahayu; Lalu Japa
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3293

Abstract

The specific purpose of this study was to determine the stability of S. sesban insecticide during storage before application and its stability in water during application. The dry powder of S. sesban leaves was extracted using water as the single solvent. Bioassay of S. sesban leaf extract was carried out on cabbage caterpillars (Plutella xylostella larvae) and Diadegma semiclausum imago on cabbage plants using a variation of storage time design. Mortality data of P. xylostella larvae and D. semiclausum imago were respectively processed by probit analysis to determine LC50. The results showed that the insect repellent content of S. sesban leaves was a compound from the saponin group and was unstable during simplicia storage, extract storage and also unstable in water before and during application. Storage of S. sesban leaf simplicia from 1 to 3 months only slightly reduced the lethal toxicity of the extract to P. xylostella larvae (mortality from 95 to 80% or LC50 from 28.82 to 28.83 ppm), but after 6 to 12 months storage, the lethal toxicity decreased drastically (mortality was 12.5 to 1.25% and LC50 was 247.99 ppm until calculated). Storage of S. sesban leaf extract from 7 to 15 days had resulted in a sharp decrease in lethal toxicity to P. xylostella larvae (mortality 70 to 40% and LC50 34.05 to 59.43 ppm) and 30 days storage causes the insect repellent to be inactive. (mortality was only 1.25% and LC50 was unaccounted for). Exposure to a solution of S. sesban leaf extract for 24 to 48 hours caused a decrease in lethal toxicity to P. xylostella larvae (mortality 32 to 28% and LC50 62.63 to 64.85 ppm) and after the solution was stored for 72 hours, the insect repellent was almost no active again (mortality was only 1.25 and LC50 was unstoppable). All storage treatments of insect repellent from S. sesban leaves showed no significant difference in the effect of lethal toxicity on D. semiclausum imago. In all the results of the bioassays, the mortality of D. semiclasum was 0 to 1.25% and each of all LC50(s) was unaccounted for
Prospective Effect of Pruritus Intensity on the Quality of Life of Neurodermatitis Patients at the NTB Provincial Hospital Anak Agung Ayu Niti Wedayani; Dedianto Hidajat
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3534

Abstract

Neurodermatitis is a skin condition that is very itchy and chronic. Its characteristics are characterized by the presence of one or more plaques that experience thickening of the skin. One characteristic of the skin surface of patients with neurodermatitis is tree bark, which is caused by repeated rubbing or scratching responses. The aim of this study was to prospectively determine the effect of pruritus intensity on the quality of life of neurodermatitis patients in Mataram City in August - September 2022. This study was a cross-sectional study to determine the effect of pruritus intensity on the quality of life of neurodermatitis patients in the period August - September 2022. Data on psoriasis patients obtained from the Provincial Hospital of West Nusa Tenggara. Pruritus intensity was measured by VAS and 5D. Quality of life was assessed using the DLQI. There is a significant correlation between the intensity of pruritus and the quality of life of neurodermatitis patients as seen from the value of P=0.000<0.05. Based on the intensity of pruritus, the severity of VAS was obtained in the severe category, namely 36 respondents (50.0%) and 5D in the moderate category, namely 42 respondents (58.3%), and the quality of life was moderately affected by 31 respondents (43.1%). Based on the results of the study, it was found that there was a relationship between the intensity of pruritus and the quality of life of neurodermatitis patients in the city of Mataram. This statement is in accordance with the results of the data that the majority of neurodermatitis patients with moderate-severe pruritus intensity have a quality that has a moderate effect on the patient's life
Differences In Lipid Profiles Based on Physical Activity Levels Among First-Year Students In a Medical Education Research Program Ida Ayu Eka Widiastuti; Seto Priyambodo; Rifana Cholidah
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3627

Abstract

Regular physical activity with adequate intensity, according to WHO recommendations, can prevent various chronic diseases, such as heart disease, diabetes mellitus, cancer, and bone disease. Physical activity can improve lipid profil: triglycerides, total cholesterol, HDL cholesterol (HDL-C), and LDL cholesterol (LDL-C). The aim of this study was to compare lipid profiles, which include levels of triglycerides, total cholesterol, HDL cholesterol (HDL-C), and LDL cholesterol (LDL-C) at different levels of physical activity: low, medium, and high levels of physical activity. This study was an observational analytic study using a cross-sectional study. The subjects of this study were 93 first year students of the Medical Study Program, Faculty of Medicine, University of Mataram. The level of physical activity was assessed using the International Physical Activity Questionnaire-Short Form (IPAQ-SF) questionnaire and the lipid profile levels were measured using the enzymatic calorimetric method. The Kruskal-Wallis test was performed to assess the comparison of triglyceride levels between groups with low, medium and high activity levels, One-way ANOVA test for total cholesterol, LDL-C and HDL-C levels, and Post Hoc LSD for HDL-C. Of the 93 subjects, 36 (38.71%) had low levels of physical activity, 49 (52.69%) moderate physical activity, and only 8 (8.6%) had high levels of physical activity. There was a significant difference in HDL-C in the high-moderate physical activity level (p=0.006), high-low physical activity level (p=0.006), and medium-low physical activity level (p=0.022). Based on the results of this study, it can be concluded that there are significant differences in HDL-C at all levels of physical activity. Regular, measured physical activity of moderate to high intensity can increase HDL-C
Antimicrobial Activity Test of Bitter Melon (Momordica charantia L.) Plant Extract Against Staphylococcus epidermidis, Escherichia coli Bacteria and Candida albicans Dewa Ayu Citra Rasmi; Lalu Zulkifli; Nurul Ahadia
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3699

Abstract

Bitter gourd (Momordica charantia L.) contains secondary metabolites of flavonoids, alkaloids, saponins, and steroids that act as antimicrobials. This study aimed to determine the antimicrobial activity of bitter melon (Momordica charantia L.) plant extract in N-hexane and ethanol solvents against Staphylococcus epidermidis, Escherichia coli, and Candida albicans. This research is an experimental laboratory study, namely the antimicrobial activity test of bitter melon plant extract on the growth of test bacteria using the agar diffusion method. The study's experimental design used a Completely Randomized Design with three repetitions at three concentration variations, namely 30%, 45%, and 60%. Then phytochemical screening was carried out to determine the active compounds in the bitter melon plant extract. Data on the inhibitory power of bitter melon plant extract were analyzed qualitatively, and the differences between concentrations were seen using the ANOVA (Analysis of variance) test. The results showed that bitter melon (Momordica charantia L.) plant extract in ethanol solvent showed activity against the growth of Staphylococcus epidermidis, Escherichia coli bacteria with a concentration of 60%, producing a powerful inhibition zone.
Comparison of Pollution Level at Jangkok River Estuary and Ancar River Estuary Using Periphyton Bioindicators Syamsul Bahri; Priyo Hartanto; Anak Agung Ayu Diah Kusumadewi; Halimatusa&#039;adiah; Bung Ashabul Kahfi
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.3784

Abstract

Water quality can be determined using various parameters such as physical, chemical and biological parameters. In this study, researchers used biological parameters, namely using periphyton organisms as bioindicators of water pollution. The aims of this study were to determine the abundance and diversity index of periphyton species in the Jangkok and Ancar rivers, to determine the periphyton species found in the Jangkok and Ancar rivers, and to determine the water quality of the Jangkok and Ancar rivers based on periphyton bioindicators. Sampling was only at the mouth/downstream of the Jangkok and Ancar rivers. Periphyton sampling at each location was carried out three times in the downstream part of the river. The division is located on the right, middle and left bank of the river body. At each of the three sample locations, 1 sample of the substrate will be taken, namely in the form of stones submerged under the surface of the river water, so that the total samples taken are 9 samples. The data obtained then calculated the Abundance Value and Diversity Index in order to get a value in determining the Quality of River Pollution. Periphyton abundance values ​​in the Jangkok and Ancar rivers were 30,116 and 4,948 cells/cm2, then the periphyton species diversity index in the Jangkok and Ancar rivers were 2,021 and 2,329. The temperature values ​​obtained at both locations ranged from 22-25 0C with a pH ranging from 7.8-8.3. The water quality of the Jangkok River and Ancar River is based on the index value of species diversity, including in the category of light pollution/unpolluted which means that fertility can be utilized. So that people need to keep paying attention to the cleanliness of the environment for the sake of survival in the future
The Influence of Problem Based Learning (PBL) Model on Students Learning Outcome Susilawati Susilawati; Aris Doyan
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.4587

Abstract

This study aims to determine the effect of problem based learning models assisted by PhET simulations on student learning outcomes in wave material. This research is a type of quasi-experimental research with nonequivalent control group design. The population in this study were all students of class XI MAN 1 Mataram. The research samples were students in class XI MIPA 3 with a total of 31 people as the control class and students in class XI MIPA 4 with a total of 29 students as the experimental class. The test instrument used is in the form of multiple choice questions. The results of the analysis show that the average score of physics learning outcomes in the psychomotor domain in the experimental class is 3.43, while for the control class the average value is 3.06. Analysis of physics learning outcomes in the affective domain of the experimental class was 3.34, while for the control class the average value was 3.13. The results of the questionnaire analysis of student responses in the experimental class obtained an average of 63.63. The results of testing the hypothesis using the t-test obtained a tcount of 6.45 and a ttable of 2.00. Thus the value of tcount is greater than ttable then Ha is accepted and H0 is rejected. This means that there is an influence of the problem-based learning model assisted by PhET simulations on student learning outcomes in wave material.
Medicinal Plant Used by Indigenous People Namely Suku Anak Dalam (SAD) in Nyogan Village Jambi Province Upik Yelianti; Muswita Muswita; Dara Mutiara Aswan
Jurnal Penelitian Pendidikan IPA Vol 9 No 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.1008

Abstract

Medicinal plants have long been known and used by the people of Indonesia and are still used today because they rarely cause side effects. One community that still uses plants as traditional medicine is the Suku Anak Dalam (Anak Dalam Tribe) (SAD) which lives in Nyogan Village, Mestong District, Jambi. As a result of the land use change in Jambi, where the forest has shifted to oil palm plantations, the forest as a habitat for medicinal plants is also decreasing, and there is even a concern that there will be a loss of germplasm. This research aimed to find out medicinal plants used by SAD in traditional medicine. This research is qualitative research with in-depth interviews and observation to collect data. The results showed that there were about 17 plants used as traditional medicine by SAD in Nyogan Village. Of the 17 plant species, four plant species were classified rare, namely Mampat wood (Cratoxylum arborescens (Vahl.) Blume), Putat wood (Planchonia valida [B.]), Brumbung wood (Adina minutiflora Val; Pertusadina spp), Bulian wood (Eusideroxylon zwageri L.). The parts of the plant that are often used for traditional medicine are bark, leaves, and plant roots, as internal medicine (oral) and external medicine. The results of this research provide an overview of medicinal plants that are still used by SAD so that they can be preserved in the future

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