Jurnal Penelitian Pendidikan IPA (Science Education Graduate Program University of Mataram)
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The Role of Computer Science: An Algorithm for Digital Vote in Indonesia
No full textThis paper explores the impact of digital technology on the profile of public participation in Indonesia. The digital era has triggered significant changes in the ways and patterns of public interaction with government structures and political structures. The great advancement of digital technology allows the synthesis of political participation that will be more inclusive of citizens. Citizens can easily actively disseminate political issues through existing social media platforms. This research uses descriptive research with a qualitative approach with a literature study approach. The data collection technique in this research is to conduct a literature search that is current and compatible with the research theme. The results of the study show that social media plays an important role in political participation in the digital era. Digital technology can also trigger opinion polarization. Political participation in the digital era has positive impacts and real challenges that must be addressed properly and wisely. Awareness of digital literacy and being critical are the main keys to maintaining inclusive political participation in this digital age
Enhancing Distance Learning Through Client-Server-Based Learning Media in Object-Oriented Programming Education
No full textThis study aims to develop and test the effectiveness of client-server-based learning media for Object-Oriented Programming courses in the Informatics Study Program at PGRI University of West Sumatra. The research employed the Research and Development method with the ADDIE model. Validation was conducted by media and material experts, with media validation reaching 77.55% (valid category) and material validation 83.90% (highly valid category). Practicality testing by lecturers showed a practicality level of 87.00% and by students 86.31% (very practical category). Learning effectiveness was measured through learning outcome tests with a classical completeness rate of 96.67% and an N-Gain value of 0.687 (medium category). The results indicate that the developed client-server-based learning media is valid, practical, and effective for distance learning in Object-Oriented Programming courses.Pengamatan awal mengungkapkan beberapa permasalahan yang mendasari penelitian ini. Media pembelajaran masih bersifat konvensional dengan keterbatasan infrastruktur, serta pemanfaatan teknologi dalam media pembelajaran yang belum maksimal, sehingga berakibat pada rendahnya pemahaman materi, motivasi, dan kemandirian belajar mahasiswa. Penelitian ini bertujuan untuk mengembangkan dan menghasilkan media pembelajaran berbasis client-server yang valid, praktis, dan efektif untuk mata kuliah Pemrograman Berorientasi Objek pada program studi Informatika. Media ini dirancang untuk meningkatkan pemahaman, motivasi, dan kemandirian belajar mahasiswa sehingga dapat memperbaiki hasil belajar mereka.Penelitian ini menggunakan metode Research and Development (R&D) dengan model pengembangan ADDIE yang terdiri dari lima tahap: Analisis, Desain, Pengembangan, Implementasi, dan Evaluasi. Data primer diperoleh dari validator, dosen, dan mahasiswa. Teknik analisis data yang digunakan meliputi analisis deskriptif dan inferensial untuk menilai validitas, kepraktisan, dan keefektifan media pembelajaran yang dikembangkan.Hasil penelitian ini berupa media pembelajaran berbasis client-server. Berdasarkan hasil penelitian, media yang dikembangkan dinyatakan valid dengan skor validitas media sebesar 0,89 dan validitas isi sebesar 0,95. Media tersebut juga dinyatakan praktis dengan tingkat kepraktisan respon dosen sebesar 96,94% dan respon mahasiswa sebesar 92,25%. Selain itu, media pembelajaran berbasis client-server ini efektif digunakan berdasarkan nilai Gain Score sebesar 0,68 (kategori sedang). Hasil uji t (Sig. (2-tailed)) sebesar 0,002 (2-tailed < 0,05) dan nilai t sebesar 3,372 menunjukkan adanya perbedaan signifikan antara hasil belajar mahasiswa di kelas eksperimen (yang menggunakan media pembelajaran) dan kelas kontrol (yang tidak menggunakan media pembelajaran tersebut)
Phytochemical Testing, Antioxidant Activity and Determination of Specific and Non-Specific Parameters of Secang Wood Extract (Caesalpinia Sappan L)
No full textCaesalpinia sappan L., commonly known as sappanwood, has been used in traditional medicine across Southeast Asia for centuries. The objective was to clarify the sappanwood extract's phytochemical profile, antioxidant activity, specific and non-specific parameters. The extraction was performed via maceration using 96% ethanol as the solvent. Phytochemical screening to identify the presence Phytochemical content. Antioxidant activity was assessed using the DPPH assay, yielding an impressive activity of 80%, comparable to the positive control, vitamin C. Phytochemical screening identifed the presence of bioactive compounds such as alkaloids, flavonoids, triterpenoids, and phenolics, while saponins and tannins were notably absent. Specific parameters, including total phenolic content, were quantified using the Folin-Ciocalteu method, while non-specific parameters encompassed moisture content (11%), extract yield (20%), neutral pH (6), and density (0.7 g/cm³). The physical characteristics of sappanwood were described as cylindrical, measuring approximately 10 cm in diameter and 1 m in length, with a reddish-brown to dark red hue and a rough, porous texture. Importantly, the extract was found to be free from hazardous heavy metals, including lead, arsenic, mercury, cadmium, and chromium. In conclusion, these findings underscore the potential of sappanwood as a safe and beneficial natural resource for health and industrial applicationsAbstract: Caesalpinia sappan L., commonly known as sappanwood, has been used in traditional medicine across Southeast Asia for centuries. This study aimed to elucidate the phytochemical profile, antioxidant activity, and both specific and non-specific parameters of sappanwood extract. The extraction was performed via maceration using 96% ethanol as the solvent. Phytochemical screening identified the presence of bioactive compounds such as alkaloids, flavonoids, triterpenoids, and phenolics, while saponins and tannins were notably absent. Antioxidant activity was assessed using the DPPH assay, yielding an impressive activity of 80%, comparable to the positive control, vitamin C. Specific parameters, including total phenolic content, were quantified using the Folin-Ciocalteu method, while non-specific parameters encompassed moisture content (11%), extract yield (20%), neutral pH (6), and density (0.7 g/cm³). The physical characteristics of sappanwood were described as cylindrical, measuring approximately 10 cm in diameter and 1 m in length, with a reddish-brown to dark red hue and a rough, porous texture. Importantly, the extract was found to be free from hazardous heavy metals, including lead, arsenic, mercury, cadmium, and chromium. In conclusion, these findings underscore the potential of sappanwood as a safe and beneficial natural resource for health and industrial applications, highlighting the need for further research into its extraction methodologies and therapeutic properties
Validitas Lembar Kerja Peserta Didik (LKPD) Berbasis Problem Based Learning (PBL) Materi Keanekaragaman Hayati Fase E SMA/MA.
No full textPenelitian pengembangan dilatarbelakangi karena LKPD yang dibuat oleh guru belum memenuhi struktur komponen yang sesuai dengan LKPD pada umumnya. Evaluasi terhadap LKPD yang ada menunjukkan beberapa kekurangan, yaitu belum dicantumkannya mata pelajaran dan semester, serta belum adanya komponen penilaian meskipun sudah memuat tugas dan langkah kerja yang sesuai. Untuk mengatasi hal tersebut, dikembangkan LKPD dengan pendekatan Problem Based Learning (PBL) yang memiliki kelebihan dalam meningkatkan kemampuan siswa menyelesaikan permasalahan kontekstual. Pengembangan ini bertujuan untuk menghasilkan LKPD berbasis PBL pada materi keanekaragaman hayati yang valid dan praktis untuk siswa SMA/MA fase E. Pengembangan dilakukan menggunakan model 4D yang terdiri dari empat tahap: define, design, develop, dan disseminate. Penelitian dibatasi hingga tahap develop dengan melakukan uji validitas dan praktikalitas. Validasi dilakukan oleh tiga orang dosen, sedangkan uji praktikalitas melibatkan dua guru biologi dan 35 siswa. Analisis data menggunakan teknik persentase yang kemudian diolah secara deskriptif. Hasil penelitian menunjukkan tingkat validitas LKPD mencapai 93%, dengan tingkat praktikalitas dari guru sebesar 98% dan dari siswa sebesar 91%. Dengan demikian, dapat disimpulkan bahwa LKPD berbasis PBL untuk materi keanekaragaman hayati yang dikembangkan untuk siswa fase E SMA N 4 Padang telah memenuhi kriteria sangat valid dan sangat praktis
Assessing Student Performance Designing Props and Experiments Physics In Learning Team Base Project For Subject Instrumentation
No full textPerformance assessment is an important part of learning that applies the team-based project method. This study aims to describe student performance in designing physics teaching aids and experiments in terms of active participation, understanding of the material, presentation skills and products. This study uses a descriptive method. Data were obtained through observation sheets and rubrics and assessment sheets. Data analysis for active participation, understanding of the material, and presentation skills was carried out by determining the number of students who obtained scores according to each category (very good, good, quite good, and less good) then expressed as a percentage. Data analysis for product assessment was carried out by determining the average score of each product and converting it to a score of 100. There were 29 students who were the sample of the study. The results of the study showed that students who participated actively were predominantly in the sufficient and less active categories. The percentage of students who understood the material was predominantly in the understand and understand enough categories. Students' presentation skills were predominantly in the good category. All the results of the teaching aid designs were in the very good category. There were three experimental design results in the very good category and three others in the good category. Based on the research results, it can be concluded that students are able to design physics demonstration tools and experiments in terms of active participation, understanding of the material, presentation and product skills, through team-based project learning.Abstract: Evaluation performance become part important in learning that applies method team based project. Through learning student team based project can develop his ability For finish a project in the form of to design tool demonstration and experiment physics . Ability this is very important for student prospective physics teacher as supplies For teach physics in school . Because of that need done study with objective For describe performance student in to design tool demonstration and experiment physics . Research This use method descriptive with stages as Next : Arranging sheets evaluation performance as instrument research , carry out learning with give task project as well as facilitate student finish project . During do project done assessment related to the process. After finish project done evaluation product . Research results show that active students 13.79 % and very active 13.79 %. Related understanding material , 20.69% were very knowledgeable , 44.83% were knowledgeable , and 34.48% were quite knowledgeable. understand . Ability presentation student dominant enter the category good and between very good and sufficient Good balanced . Project results student to design tool demonstration and experiment enter category good and very good . Based on results study can concluded that results evaluation performance student in to design tool demonstration and experiment physics For activity enter category lack of understanding to material enter category understand , ability presentation enter category good and for product tool props enter very good category whereas product experiment enter category Good .
 
Development of E-Books Assisted by Augmented Reality on Respiratory System Material for Grade V Elementary School
No full textLearning (IPAS) in elementary schools has many obstacles and shortcomings. This study is an R&D study referring to the Borg and Gall model with the aim of testing the feasibility, practicality, and effectiveness of e-book media assisted by augmented reality (AR). Data collection was carried out using test techniques (pretest and posttest) and non-tests in the form of observations, interviews, surveys, and document data. Feasibility is shown from the results of the validation test by expert validators in language, materials, and media showing that the AR-assisted e-book media has met the criteria that are very feasible. Based on the results of the pretest and posttest, it shows that the AR-assisted e-book media is effective in improving student understanding with an increase in the average pretest and posttest scores shown from the T-test results showing a value of 0.001, and the N-gain test results obtained 0.85. Practicality is shown from the results of the teacher and student response questionnaire which received very positive responses from teachers and students. The data shows that AR-assisted e-book media is practical, feasible, and effective in improving understanding of the human respiratory system material in class V of SD Negeri Karangjati 04
Routine Hematology Findings in Pulmonary Tuberculosis Cases at Regional General Hospital of Dr. Pirngadi, Medan, Indonesia
No full textPulmonary Tuberculosis (TB) is an infection of the lung parenchyma caused by Mycobacterium tuberculosis and is transmitted via droplets. A routine hematological examination is crucial for evaluating disease progression, complications, and therapeutic responses. Thus, this study aimed to To identify routine hematological characteristics in pulmonary tuberculosis patients in RSUD Dr. Pirngadi Kota Medan. This observational study with cross-sectional design included 105 pulmonary tuberculosis patients, that selected via total sampling technique from 2019 to 2020. Data on demographic characteristics (age, sex, and occupation) and hematological profiles were analyzed. The majority of patients were male (67.6%), aged 46–55 years (24.8%), and worked as self-employed (47.6%). Hematological profiles showed elevated neutrophils (72.4%) and erythrocyte sedimentation rate (53.3%), alongside reduced hemoglobin (58.1%), hematocrit (61%), and lymphocytes (83.8%). Most patients had normal number of leukocytes (52.4%), platelets (63.8%), monocytes (47.6%), eosinophils (87.6%), and basophils (99%). he most characteristic routine hematological changes in pulmonary tuberculosis patients include decreased hemoglobin, hematocrit, and lymphocytes, as well as increased neutrophils and erythrocyte sedimentation rate. These findings emphasize the importance of hematological examination in the diagnosis and monitoring of pulmonary tuberculosis
Analisis Kemampuan Literasi Matematika Siswa Ditinjau dari Tipe Kepribadian Myers-briggs
No full textPenelitian ini bertujuan untuk mendeskripsikan kemampuan literasi matematika siswa kelas XI pada konten space and shape ditinjau dari tipe kepribadian Myers-briggs. Penelitian ini merupakan penelitian kualitatif dengan jenis penelitian deskripif. Subjek dalam penelitian ini adalah siswa kelas XI salah satu sekolah negeri di Lombok Barat yang berjumlah 12 siswa, terdiri dari masing-masing 3 siswa dengan tipe kepribadian artisan, guardian, idealist dan rational yang dipilih dengan teknik purposive sampling. Analisis dilakukan berdasarkan tiga indikator literasi matematika, yaitu (1) formulate, (2) employ, dan (3) interprete/evaluate. Adapun teknik analisis yang digunakan berupa model analisis interaktif yang terdiri dari data reduction, data display, dan conclusion verification dengan uji keabsahan data berupa metode tringulasi teknik. Hasil penelitian menunjukan bahwa a) kemampuan literasi matematika siswa dengan tipe kepribadian artisan sebagian besar berada di level 4, b) kemampuan literasi matematika siswa dengan tipe kepribadian guardian sebagian besar berada di bawah level 3 namun ada subjek yang dapat mengerjakan soal dengan level 4, c) kemampuan literasi matematika siswa dengan tipe kepirbadian idealist mampu mencapai level 5, d) kemampuan literasi matematika siswa dengan tipe kepribadian rational sebagian besar berada di level 4 walau ada subjek yang mampu mengerjakan soal dengan level 5
Development of Physics E-Jobsheet Integrated STEM Approach to Promote Students’ 21st Century Skills
No full textThe development of science and technology that is developing very quickly is challenge for the world of education to prepare students who are able to compete in the current era of revolution. This research aims to produce product in the form of a class XI high school physics e-jobsheet integrated with a STEM approach to improve the skills of 21st century students. The type of research used R&D research with the development model used in this study The development model used is the ADDIE development model. Data collection techniques used are observation, interview, and questionnaire methods. Based on the data that has been analyzed, three conclusions can be drawn. First, at the analysis stage, four analysts were carried out, the results of the analysis of graduate competency standards analysis of learning activities, analysis of participant characteristics, and analysis of 21st century skills. Second, the validation result is 0.76 with valid category. Third, the results of practicality by educators are 81 with very practical category, for the results of practicality by education participants are 83.53 with categories Very practical. The results of the study concluded that the integrated physics e-jobsheet STEM approach is valid and practical for use in learningThe development of science and technology that is developing very quickly is challenge for the world of education to prepare students who are able to compete in the current era of revolution. This research aims to produce product in the form of a class XI high school physics e-jobsheet integrated with a STEM approach to improve the skills of 21st century students. The type of research used R&D research with the development model used in this study The development model used is the ADDIE development model. Data collection techniques used are observation, interview, and questionnaire methods. Based on the data that has been analyzed, three conclusions can be drawn. First, at the analysis stage, four analysts were carried out, the results of the analysis of graduate competency standards analysis of learning activities, analysis of participant characteristics, and analysis of 21st century skills. Second, the validation result is 0.76 with valid category. Third, the results of practicality by educators are 81 with very practical category, for the results of practicality by education participants are 83.53 with categories Very practical. The results of the study concluded that the integrated physics e-jobsheet STEM approach is valid and practical for use in learnin
The Effect of Different Guanidino Acetic Acid (GAA) Levels and Protein Source on Blood Profile of Tilapia Fish (Oreochromis niloticus)
No full textTilapia (Oreochromis niloticus) is a freshwater fish that has high economic value and potential to be cultivated. The problem that often arises in tilapia cultivation is the lack of optimal use of the feed given. The purpose of this research was to find out blood profile of tilapia during culture period. The method used was a completely randomized design (CRD) with five treatments and every treatment with four replications. This study used 240 Tilapia with average weight of 15 g. The stocking density of the aquaria is 15 fish. Test feed in this study is the form of dry pellets consisting combination of GAA levels, protein content (25% dry matter bases), and source of protein (fish meal and non-fishmeal). During the cultured period of 70 days, fish fed by formula diet of 3% biomass per day. Sampling for blood profile tested of erythrocytes, leukocytes, and hematocrit is carried out after the research. The water quality of temperature, pH, and DO were daily monitoring. The combination treatment of guanidino acetic acid (GAA) levels with different protein sources (fishmeal and non-fishmeal) had a significant effect on total erythrocyte of tilapia, but did not have significant differences between treatments on total leukosyte and hematocrit. Treatment with 1.2 g/kg GAA, fish meal protein source was the best treatment in this research