AMPLITUDO : Journal of Science and Technology Innovation

Overview of Iron-Coated Dynamic Membrane for Water Treatment

2023-10-30T10:08:16+08:00

The increasing global demand for clean and potable water has prompted the exploration of innovative water treatment technologies. Pre-deposited dynamic membrane systems, a novel approach in wastewater treatment, have gained attention due to their versatility and effectiveness. This mini-review focuses on the application of iron oxide-based dynamic membranes in water treatment processes. It discusses the impact, formation, properties, and various water treatment applications of iron oxide dynamic membranes, highlighting their potential to revolutionize the field of sustainable water treatment.

Problem-Based Learning (PBL) Physics Teaching Books Newton’s Gravity Force

2023-06-07T05:56:53+08:00

The purpose of this research is to test the validity and feasibility of physics textbooks that have been developed based on Problem Based Learning (PBL) on Newton's gravitational force material. This research uses development research methods. The validation sheet is used as a research instrument. The validation sheet was validated by two experts and declared valid according to predetermined criteria. Textbook validation data was collected from two experts, one textbook media expert and one physics material expert. There are two aspect criteria that are tested for validity, the form of dialogical and interactive presentation of language and the contextual nature of textbooks. The purpose of this research approach is to describe the effectiveness, validity and feasibility of using physics textbooks. The research results obtained are the percentage of aspects of dialogic and interactive language validation as well as aspects of contextual nature that have been tested by material experts obtained an average percentage of 87.5%, which means that the physics textbooks that have been developed are included in the feasible criteria. The results of the research tested by media experts on aspects of dialogic and interactive language as well as on aspects of contextual nature both obtained an average percentage of 100%. This means that a physics textbook based on Problem Based Learning (PBL) on Newton's gravitational force is very feasible to be tested based on validity testing by one material expert and one media expert.

The Effect of Hydroxyapatite on Alveolar Bone Regeneration in Various Dental Procedure: Systematic Review and Meta-Analysis

2023-12-18T19:13:58+08:00

Background. The effect of hydroxyapatite (HA) bone substitute on alveolar bone regeneration has been analyzed in various dental procedures including ridge preservation, sinus augmentation, and periodontal bone defect treatment. The objective on this study was to determine and analyze the structural effect of the HA bone substitute in these dental applications. Methods. The systematic review was conducted using electronic databases from PUBMED, EMBASE, and COCHRANE. The search covered articles published from 1998 up to November 2023. The primary outcome measures were radiographic (intraoral periapical, CT long cone-paralleling technique, computer-assisted densitometry image analysis), histologic/histomorphometry, and other radiographic methods. The secondary outcome measures related to bone regeneration were assessed, including clinical, radiographic/histologic, and histological evaluations. Conclusion. The present systematic review focused on randomized controlled trials (RCTs) and prospective controlled clinical trials (CCTs). The results showed that HA and ß-TCP were found to be safe and clinically acceptable compared to other treatments.

Blood Pressure, Urine, and Blood Test Barriers During Antenatal Care in Bangladesh: An Analysis of MICS 6

2023-12-16T13:45:00+08:00

Antenatal care is important during the pregnancy. During that, pregnant women will be tested for blood pressure, urine, and blood test as the essential information for mother and baby. This study purposed to examine the factors impact to inaccessibility of blood pressure, urine, and blood test. This study used the secondary data using “Multiple Indicators Clusters Survey” round 6 in 2019. Total sample of this study are 7,607 women who experienced antenatal care services. The data analysis was done for univariate, bivariate, and multivariate using binary logistic regression. The results in this study revealed that educational level and wealth index as the main predictors of inaccessible tests during antenatal care. Increasing level of education and wealth index will decrease the barriers to access testes. Government and stakeholders can focus on education and economics sectors to increase the accessibility to antenatal care especially for blood pressure, urine, and blood test services.

Analysis of Science Content in the Jaran Kamput Tradition of the Lombok Community

2023-11-14T11:07:16+08:00

Jaran Kamput is a tradition of the Lombok people that is still carried out today. The purpose of this research is to examine the science content that is relevant to the Jaran Kamput tradition. This descriptive qualitative research was conducted in Barejulat village, Jonggat sub-district, Central Lombok district. Data about the Jaran Kamput tradition were obtained through interviews and observations, then the data were analyzed descriptively to find science content relevant to the Jaran Kamput tradition. The results of this study indicate that the science content that is relevant to the Jaran Kamput tradition includes: the structure of plant tissue and its functions, natural and artificial additives, the balance of rigid bodies, and vibrations and sound waves. The results of this study are expected to be one of the alternatives for the enrichment of science materials for science teachers.

Tetanus Toxoid Injection During Last Pregnancy Among Women in Reproductive Age in Nepal

2023-12-30T15:46:38+08:00

Tetanus toxoid injection is important as one mandatory vaccine for pregnant women to prevent maternal and neonatal tetanus. This study purposed to examine the barriers of not receiving tetanus toxoid vaccine among women of reproductive age in Nepal. This study used the secondary data using “Multiple Indicators Clusters Survey” round 6 in 2019. Total sample of this study are 2,494 women of reproductive aged 15 to 49 years. The data analysis was done for univariate, bivariate, and multivariate using binary logistic regression. The results in this study revealed that increasing child ever born (CEB) as the main predictor for not receiving TT vaccine, following by higher educational level and wealth index. In conclusion, the TT vaccine is a critical intervention to prevent maternal and neonatal tetanus. Understanding the determinants of TT vaccination coverage, ensuring accessibility to the vaccine, and addressing knowledge gaps among pregnant women are essential for improving TT vaccination rates during pregnancy.

Analysis of Scientific Literacy Research in Indonesia as A Basis for Developing Ecotourism-Based Teaching Materials: Literature Review

2024-02-19T07:18:01+08:00

Science and technology have an important role in facing educational challenges in the 21st century, so that science education, which is part of education, has an important role in preparing students to have scientific literacy. The aim of this research is to determine research trends regarding scientific literacy as a basis for developing ecotourism-based teaching lessons for junior high school students on Lombok Island. The study in writing this article used literature studies or literature reviews from several previous studies published in Scopus indexed journals or proceedings from 2017-2022. The 157 articles obtained were selected into 30 articles. Literature analysis and synthesis was carried out using bibliometric analysis with the VosViewer application. The research results show that a lot of research on scientific literacy has been carried out in Indonesia, and one of the research related to scientific literacy is the development of teaching materials because the development of teaching materials has quite a big influence in increasing students' scientific literacy. However, there is still no research on the development of ecotourism-based teaching materials in increasing students' scientific literacy in Indonesia, so research on this topic is important to do

The Influence of the Project Based Learning (PjBL) Model on Student Learning Outcomes

2023-10-25T07:35:37+08:00

The purpose of the research to determine the effect of Project Based Learning (PjBL) model on student learning outcomes in optical instruments. The sampling technique used purposive sampling, obtained class XI MIPA 4 as experimental class and XI MIPA 5 as control class. The research design used was a nonequivalent control group design. The experimental class will be given treatment using the Project Based Learning (PjBL) model, while the control class will use the expository model (conventional learning). Learning outcomes abilities measured in the cognitive domain include: C1) remembering, C2) understanding, C3) applying, C4) analyzing, C5) evaluating, and C6) creating. The instrument used was 10 multiple choice questions. Data were analyzed using parametric statistics, namely Manova. The results showed a sinificance value of 0.000 < 0.05 and a value of R_count > R_table where 0.359 > 0.350, so H₀was rejected and H_a was accepted. So can be concluded that there is an influence of the Project Based Learning (PjBL) model on scientific literacy and student learning outcomes in optical equipment material.

The Influence of the Problem-Based Learning Model on Students' Critical Thinking Ability in Mechanical Wave Material

2023-12-03T06:31:40+08:00

The learning process is still teacher-centered, resulting in students being less active during learning. This research aims to increase the influence of the Problem-Based Learning model on students' critical thinking abilities in mechanical wave material. This quasi-experimental research uses a non-equivalent control group design. The research population included all students in class XI MIPA at one of the State High Schools in East Praya. Sampling used a purposive sampling technique so that 2 groups were obtained, namely 30 experimental class students and 30 control class students. The experimental class was given treatment in the form of using the Problem-Based Learning model, while the control class used the conventional model. Students' critical thinking abilities are obtained from the description questions they work on. Data from the pretest results of experimental class students obtained an average score of 25 and control class students obtained an average score of 23. The posttest scores showed that the critical thinking abilities of experimental class students were in the good category with an average score of 78.6 and the students in the control class were in the good category with an average score of 74.3. The research hypothesis was tested using the polled variance t-test at a significance level of 5%. Data analysis shows that the t_count value, namely 3.384, is greater than t_table, namely 2.002, which means that H₀ is rejected and H_a is accepted, so it can be concluded that there is an influence of the Problem-Based Learning model on students' critical thinking abilities in mechanical wave material.

Sources of Error in Blood Pressure Measurement Using Digital and Aneroid Tensimeters

2023-11-30T14:37:20+08:00

A tensimeter is an instrument works with concept of physics used to measure blood pressure. The measured blood pressure is the relative pressure between the pressure inside the blood vessels compared to the pressure of the atmosphere. Blood pressure measurements using a digital tensimeter are much more acurate than measurements using a aneroid tensimeter. Measurements with an aneroid sphygmomanometer at a hospital in the city of Mataram showed a measurement error up to 20 mmHg compared to a digital sphygmomanometer. Source of error consist of two main factors ie. Instrument error and human error. From this research it was found that measurements using a digital sphygmo-manometer are more accurate, so the use of this type of sphygmomanometer is highly recommended for clinical measurements in hospitals and health hospitals.

The Impact of Physics Modules Based on Problem Based Learning on The Problem-Solving Abilities of Students in the Material of Optical Instruments

2024-01-03T11:22:27+08:00

The purpose of this study is to ascertain how students' problem-solving skills are affected by the use of a problem-based learning physics module. A nonequivalent control group design and a quasi-experimental research methodology are used. Test instruments in the form of descriptive questions and non-test instruments in the form of a questionnaire on student replies make up the instruments utilized. Students in grade XI at SMA Darul Falah for the academic year 2022–2023 make up the study population. Purposive sampling was used to choose the research sample, resulting in the experimental group consisting of 21 students from class XI MIPA 2 and the control group consisting of 21 students from class XI MIPA 1. For the experimental group, a customized problem-based learning module in physics was employed. The Problem-Solving Ability instrument consists of descriptive questions that have been tested for validity, reliability, difficulty level, and item discrimination. The experimental group's average post-test score was 83.66, compared to 60.09 for the control group. Both groups' data were uniformly distributed and homogeneous. The hypothesis test results indicated that the calculated t-value was greater than the critical t-value, specifically 6.33, which is higher than 2.02 for the post-test data. Therefore, the alternative hypothesis ( ) is accepted, and the null hypothesis ( ) is rejected, indicating an influence of using the physics module based on problem-based learning on students' problem-solving abilities in the topic of optical instruments. Based on the analysis of the questionnaire responses, students' responses improved after the implementation of the physics module based on problem-based learning, with an implementation percentage of 72%. In conclusion, there is an influence of using the physics module based on problem-based learning on students' problem-solving abilities in the topic of optical instruments.