bluuebunny/crossref_metadata_2025 huggingface dataset:
Fishmeal-Based Media Supports Growth and Endospore Production of Locally-Isolated Lysinnibacillus sphaericus and Induces its Toxicity to 3rd Instar Aedes aegypti Larvae in Laboratory Conditions
Authors: Suryadi Bambang Fajar , Mustikasari Ika , Annisa Zuriatun , Sarkono  , Tresnani Galuh
Published: July 2024

The aim of this study was to determine whether fishmeal-based media could be used to grow L. sphaericus and induce its toxicity against Aedes aegypti larvae. Three concentrations (10, 20 and 30%) of fishmeal-based media were used to grow L. sphaericus isolate Bs2-1-2. Cell growth and endospore production were observed every 12 hours for 72 hours. The lethal concentration was measured every 24 hours for 72 hours of fermentation. The highest cell concentration was found in L. sphaericus grown on the media with 30% fishmeal concentration (3.03x1008 cells/mL), followed by 20% concentration (2.43x1008 cells/mL) and the lowest at 10% concentration (2.20x1008 cells/mL). At the end of fermentation, the highest concentration was found in L. sphaericus grown on 30% fishmeal-based media (1.51x1008 cells/mL), followed by 20% media (6.95x1007 cells/mL) and 10% media (3.21x1007 cells/mL). After 72-hour incubation, the highest endospore concentration was achieved by L. sphaericus grown on 20% (2.51x1008 cells/mL) and 10% (2.19x1008 cells/mL) fishmeal-based media. Initial larval toxicity of L. sphaericus showed the highest mortality on 20 and 30% fishmeal-based media (both reaching 53.33%), while 10% fishmeal-based media gave only 26.67% larval mortality. The LC50 value at 72 hours was achieved by L. sphaericus cultured on 30% fishmeal-based media (2.47 x 1008 cells/mL), followed by 20% concentration (4.82 x 1008 cells/mL) and 10% concentration (9.01 x 1009 cells/mL). The conclusion of this study was all concentrations of fishmeal-based media could support cell growth, endospore production and larval toxicity induction of L. sphaericus.
Stepping Together with Nature of Malang Raya: The Development Environmental Changes E-Book Based on Problem Based Learning (PBL)
Authors: Rafidah Humaimah Nakhlah , Rachmadiarti Fida , Prastiwi Muji Sri
Published: July 2024

The development of teaching materials that are integrated with local wisdom is needed as a teaching tool to support learning using the Merdeka curriculum. To practice some of these skills, teaching materials are needed that support the application of the Merdeka curriculum for learning activities. This research aims to determine the theoretical feasibility of teaching materials in the form of environmental change e-books based on problem based learning integrated with local wisdom in Malang Raya. This research uses the ADDIE model with analysis, design, development, implementation and evaluation stages. Data was obtained from validation results by two biology lecturers and readability tests. The environmental change e-book developed has very valid criteria. The validation results are based on aspects of presentation, content, suitability of problem based learning steps. E-book readability test at level 11 or according to the level of thinking of class X high school students which is categorized as very positive and appropriate. So, it is concluded that the environmental change e-book based on problem based learning integrated with Malang Raya local wisdom is very suitable to be applied in the learning of class X high school students.
The Development of an Ethnoscience-Based Mangrove Module in Improving Student’s Critical Thinking Abilities and Concern for the Environment at SMA IT Daarul Hikmah Bontang
Authors: Yuliarta Sri Roma , Masruhim Muhammad Amir , Hardoko Aloysius , Candra Krishna Purnawan , Sukartiningsih  , Daru Taufan Purwokusumaning , Massawet Elsje Theodore , Masitah  , Hudiyono Yusak
Published: July 2024

A module is an educational material or learning tool that includes teaching materials, methods, and assessments that are developed in a systematic and structured manner to achieve expected competency goals. The aim of this study is to develop a valid, practical and effective mangrove module based on ethnoscience on biodiversity. The type of research is R&D which refers to the ADDIE method developed by Mayfield. Data collection techniques consist of expert verification, observations, tests, questionnaires, and interviews. The results of the study show that, this module was developed based on the manual previously used by SMA IT Darul Hikmah Bontang students to learn biology. The module validity result for the module is 99%, which is in the very valid category. The material validity result of the module was in the very reasonable category at 84.69%. The linguistic validity result of the module was 73.6% in the valid category. The results of the student survey regarding the practicality of the module were 88.65%, which fell into the very practical category. The effectiveness module in improving student’s critical thinking ability and environmental awareness have n-gain values ​​are 0.55 and 0.44. It can be concluded that the development of the ethnoscience-based mangrove module in the intermediate category has been effectively used to improve the critical thinking skills of the students of SMA IT Darul Hikmah Bontang.
Development of Instrument Soft Skill Assessment in Problem-Based Learning to Improve Students' Collaboration Skills, Communication Skills, and Social Skills
Authors: Ulfa Zahra Maria , Rosidin Undang
Published: July 2024

The research aims to produce the instrument soft skill assessment in problem-based learning that are valid, practical, and effective in assessing students' collaboration, communication, and social skills. This research uses the 4-D development model consisting of four stages: define, design, develop, and disseminate. At the define stage, a preliminary study is carried out in the form of a needs analysis and literature study, then the formulation of objectives. At the design stage, product determination is carried out, product design is created and the instrument soft skills assessment is designed. At the development stage, initial field tests are carried out in the form of expert validation, product revisions, main field tests to obtain data on the practicality and effectiveness of the product, then the final product is obtained. At the disseminate stage, product distribution was carried out on a large scale, but this research only reached the development stage due to limited research time. The research sample consists of tenth-grade students at SMA N 1 Padang Cermin, Lampung. Data collection techniques include methods such as self assessment questionnaires and documentation. Data analysis employs qualitative analysis with descriptive percentage for expert practitioner validation, effectiveness, and quantitative analysis using SPSS for effectiveness. The results of this study indicate that the instrument soft skill assessment in problem-based learning to improve students' collaboration, communication, and social skills in high schools are developed with theoretical, practical, and effective feasibility.
The Influence of Problem Based Learning on Problem Solving Ability in Science Materials in Elementary Schools
Authors: Shafarina Annisa Yola , Mustadi Ali , Purwanti Siwi
Published: July 2024

Problem solving abilities have a significant role in increasing students' cognitive capacity, however, there are still difficulties in developing these skills. This research aims to assess the influence of the Problem Based Learning Model on students' problem solving abilities. This research is a quasi-experimental quantitative type with a pretest-posttest control group design. Fourth semester students in classes C and D of the PGSD Study Program were taken as samples using the Purposive Sampling technique. Data was collected through a research instrument in the form of a problem solving ability test in the Elementary School Science Learning Materials course. The results of hypothesis analysis using the Mann-Whitney test show the Asymp value. Sig. (2-tailed) is 0.000, which is smaller than 0.005. Therefore, it can be concluded that Hypothesis is Accepted. This means that there are differences between the experimental class which uses the PBL model and the control class with conventional learning. Thus, it can be concluded that the PBL model has an influence on the problem solving abilities of PGSD students.
Intake of Vitamin A, Calcium, and Zink Between Stunted and Non-Stunted Children in Cirebon
Authors: TW Siti Pandanwangi , Akrom  , Nurkhasanah  , Zuniarto Ahmad Azrul
Published: July 2024

The food consumed by children greatly affects how they will live in the future. The amount of nutrition that enters a child's body affects their health and intelligence. Vitamin A and minerals Ca, Zn are vital components in the body for the process of growth and development, endurance, and other important functions. The purpose of this study was to see the intake of vitamins A, Ca, and Zn between stunted and non-stunted children. The research method is observational with a cross sectional design. The population is toddlers who live in Tegalwangi, Cirebon Regency. Sample with age 24-60   month that parents are willing to fill out the consent form as research subjects. The time for the study began in January-May 2023. Data was collected using the 3x24 hour nutritional recall questionnaire method, followed by converting nutritional intake through the Nutrisurvey software. The results of the study for the stunting group obtained an average intake of vitamin A 285.3RE ± 242.34RE, Ca 233.12mg±180.7mg and Zn 2.95mg ± 0.97mg. Meanwhile, for the non-stunted group, the average intake of vitamin A was 591.0RE±735.5RE, Ca 604.5mg±906.7mg and Zn 5.3mg±3.8mg. Analysis of the difference between the intake of the two groups resulted in a P -value of 0.009 for vitamin A intake, a P -value of 0.007 for Ca, a p-value of 0.000 for Zn. There is a significant difference between stunted and non-stunted children.
Feasibility of Engineering Mechanics E-Modules Developed Using the Four-D Model
Authors: Yulia Erma , Situmorang Benyamin , Pakpahan Binsar M
Published: July 2024

Technological developments demand that learning media be developed on an electronic basis. Availability of electronic modules in Engineering mechanics lessons is currently still not available. Even though students are required to solve cases in the field by mastering three concepts, namely mathematics, physics and mechanics independently. This research aims to determine the feasibility of a case-based engineering mechanics e-module. The research method uses the R&D method with a 4D development model. The stages of the 4D method are definition, design, development and distribution. The data collection technique was carried out by distributing questionnaires. Validation of the e-module was carried out by material experts, learning design experts and learning media experts who were analyzed descriptively. The research results showed that the feasibility score for material experts was 91.17% in the very good category, learning design experts 93.38% in the very good category, and learning media experts 89.83% in the very good category. Thus, it can be concluded that the case-based e-module developed is very suitable for use in learning engineering mechanics.
Effectiveness of Blended Learning Model in Microprocessor Course with Google Classroom
Authors: Taali  , Desky Abdul Habib Arrasyidi , Pratama Arief Juneirul , Setiawan Herlin
Published: July 2024

Low student learning outcomes in microprocessor courses. This can be created if students are not able to condition themselves and take the learning process seriously. The importance of independent learning (self-regulated) of students, then an innovative learning process is also needed that can support student skills. One of the learning processes that can support the improvement of student learning outcomes is blended learning. The purpose of this study is to examine how Google Classroom supports the blended learning approach, which enhances student learning outcomes. This kind of study is known as quasi-experimental. Design of Pretest-Posttest. The research was conducted at the Electrical Engineering Education Study Program at Padang State University with a total of 32 experimental class students and 31 control class students. The research instruments used were observation sheets of the application of the blended learning model, student learning outcomes questionnaire. Data analysis was carried out with technical mean percentage, n-gain, and independent t-test. The results showed that the application of blended learning was effective on student learning outcomes at 5% sig tarag which was seen from the value of tcount > ttable, namely 4.75 > 1.67. There was an increase in student learning outcomes with a posttest value of 80.25. Based on the data that has been analyzed, it can be concluded that the application of blended learning assisted by Google Classroom is effective in supporting to improve student learning outcomes
Development and Evaluation of a Digital Pop-Up Book on the Concept of Force for Fourth-Grade Science
Authors: Fauziyah Dini Hikmatul , Mulyani Petra Kristi
Published: July 2024

Preliminary research, through observations, questionnaires, and interviews, showed problems in fourth-grade science learning media about force. This research aimed to develop a digital pop-up book on the concept of force This research used the research and development (RnD) method. The stages of the research were finding potential problems, data collection, product design, design validation, design improvements, product test, product revision, usage test, product revision, and mass production. Media experts validated the pop-up book and assessed it in a category of qualified with a score of 89.50%, meaning that the media emphasized information accordingly to the target; the choice of font and size was correct; the media was attractive, easy to use, made it easier for students to understand the material, and made it easier for teachers to deliver the lesson. The content expert validated the content on force and assessed the accuracy of the content in the category of very suitable with a score of 91.25%, which means that the material was presented coherently, encouraged students’ curiosity, was appropriate to support the lesson, activating students, increased students’ knowledge, had clear visuals and text, had concise and clear language, and delivered suitable language level. The effectiveness of digital pop-up books in improving students’ understanding of the material was shown in the t-test result (13.513) and an average increase (N-gain) of pretest and post-test data of 0.55 with medium criteria. Participants’ questionnaire showed their opinions on the excellent quality of digital pop-up books. This research indicated that digital pop-up books on the concept of force met the media and content qualification criteria, which motivated and helped the students comprehend the information.
Development of IPAS on Matter and its Changes Based on PjBL to Improve the Science Process Skills for Grade E Vocational High School
Authors: Novianti Exsa Rahmah , Hardeli
Published: July 2024

The aim study to produce module of IPAS learning based on project based learning to improve the science process skill for grade E SMK and to determine level of validity practicality and effectiveness. The type of research used research and development (R&D). The development model used 4D models (define, design, development and dessiminate). The module of IPAS learning was validated by three chemistry lecturers from FMIPA UNP and two chemistry teachers from SMK Swasta Bakti Agro Mandiri and SMKN 1 Kempas. Determination of the practicality level of module IPAS learning by two chemistry teachers from SMK Swasta Bakti Agro Mandiri and SMKN 1 Kempas and 30 students of grade E SMK Swasta Bakti Agro Mandiri. The results of the practicality analysis based on teacher and student response questionnaires obtained Aiken scores of 0.97 and 0.93 respectively in the very high practicality category. Therefore, it can be said that the module based on project based learning to improve the science process skill for grade E SMK on matter and its change material is valid, practicable, and effective.
Development of Project-Based Learning Oriented Student Worksheets to Improve Students' Creative Thinking Skills on Class X High School Nanotechnology Material
Authors: Dwiningsih Kusumawati , Aisy Nabiilah
Published: July 2024

The purpose of this study is to determine: the feasibility of project-based learning-oriented student worksheets in terms of content validity and construct validity, and the effectiveness of   project-based learning-oriented student worksheets in terms of increasing students' creative thinking skills. Development of Project-Based Learning oriented student worksheets to improve students' creative thinking skills on class X high school nanotechnology material using the Research and Development (R&D) method with a 4D development model (Define, Design, Develop, and Disseminate). However, this research was carried out only until the third stage, namely Develop. The results of data analysis and discussion are as follows: the worksheets of project-based learning-oriented students developed are declared to have met the eligibility requirements in terms of content validity and construct validity with mode (Mo) values ≥ 4 and R ≥ 75%, and student worksheets project-oriented based learning developed was declared effective in terms of increasing students' creative thinking ability with a percentage of N-Gain of 79% moderate category (0.30-0.70) and 21% high category (0.7-1). Thus, Project Based Learning Oriented Student Worksheets can be used to improve students' creative thinking skills on Nanotechnology material.
Flipbook-Based Project-Based Learning: An Opportunity to Improve Science Literacy
Authors: Haryanto Henzi , Widarti Hayuni Retno , Mashfufah Aynin , Dewi Radeni Sukma Indra , Kusumaningrum Shirly Rizki
Published: July 2024

Problems that often occur in schools are the use of learning media. Moreover, learning media can make students feel happy. So that the desired abilities can be achieved, such as science literacy. Science literacy is an ability that needs to be improved starting from elementary school. This aims to make students able to later compete in the community environment. This research uses a qualitative descriptive method. This method can be the first step to describe or analyze the problems that occur in the field and will later be developed further. The sources obtained in this study came from interviews with teachers and questionnaires on the favourability of using learning media for students. The result is that students like learning that involves them in learning, coupled with using media that can be seen and heard such as YouTube or multimedia learning. However, many teachers still have difficulty in applying interactive media. The use of flipbooks can be a solution for teachers, considering that teachers have many learning accounts that have access to the use of applications to create flipbooks, such as CanvaPro. This flipbook-based learning media itself is able to make students think creatively and improve science literacy by combining project-based learning (PJBL).
Development of Problem-Based Learning Student Worksheet Integrated with Ethnoscience on Acid-Base Material
Authors: Marthin Emmilya Febri , Hardeli  , Oktavia Budhi , Kurniawati Desy
Published: July 2024

This study aims to develop problem-based learning student worksheets integrated with ethnoscience on acid-base materials that are valid and practical. This research uses a development research method (Research and Development) with a 4-D model. The data of this study were collected through validity sheets completed by 4 validators, namely 2 chemistry lecturers and 2 chemistry teachers, and with a practicality questionnaire sheet completed by 2 chemistry teachers and by 35 students of SMAN 1 Batusangkar as respondents. Data were analyzed using quantitative descriptive method, using Aiken’s V. The result for content validity is 0.88 and construct validity is 0.90 with valid category. The result for teachers practicality is 0.95 and students practicality is 0.82 with practical category. Based on the results of the research that has been conducted, it can be concluded that the development of problem-based learning-based student worksheets integrated with ethnoscience on acid-base material is valid and practical.
Development of E-Module Acid-Base Based on Problem Based Learning Oriented Chemo-Entrepreneurship to Improve Student’s Critical Thinking Skills
Authors: Putri Hanna Salwa , Oktavia Budhi , Yerimadesi  , Alizar
Published: July 2024

Acid-base is one of the important materials in chemistry learning. Based on preliminary analysis, it is known that students have not properly understood the concept of acid-base. This study aims to develop an acid-base e-module, analyze its validity, practicality, and effectiveness on critical thinking skills. This research method is development research with the Plomp development model. The e-module was validated by 5 valitadors. The practicality test was conducted on 28 students and 3 teachers. The effectiveness of the e-module is seen from the increase in critical thinking test score from 57 students. Validity and practicality were analyzed using Aiken's V, while effectiveness was analyzed with N-Gain. The results showed that the developed e-module had a validity value of 0.89 with a valid category; a practicality value of 0.87 by students and 0.97 by teachers with a practical category. The effectiveness results show that the e-module has an effect on students' critical thinking skills, as evidenced by the N-Gain score of the experimental class of 0,7 with a fairly effective category while the N-Gain score of the control class is 0,4 with a less effective category. Thus, the developed e-module is declared valid, practical, and effective.
The Influence of the Team Games Tournament (TGT) Learning Model Assisted by Wordwall on the Scientific Literacy of Class V Elementary School Students
Authors: Saputri Adila Luthfi , Sukmawati Wati
Published: July 2024

This study aims to present the results of a study that compares the effectiveness of two learning methods, namely the Team Games Tournament (TGT) assisted by Wordwall and conventional learning methods, in improving the science literacy skills of grade V elementary school students. The research method uses a quasi-experimental method by using an experimental class applying TGT assisted by Wordwall, while the control class uses conventional learning methods. Data obtained from both groups of students were analyzed to evaluate the improvement of science literacy skills. The results showed that the experimental class experienced a significant improvement in science literacy skills compared to the control class. Wordwall-assisted TGT approach creates a more interactive, collaborative, and engaging learning environment for students, which encourages active participation and increases their motivation to learn. On the other hand, conventional methods show some students experiencing a decline in ability, highlighting the need for a more varied and interactive approach to learning. These results underscore the importance of innovation in learning methods to improve the quality of science education in primary schools, with great potential to apply the Wordwall-assisted TGT model widely in this context.
Implementation of Inquiry Learning Based on Creativity and Science Process Skills
Authors: Sinuraya Jurubahasa , Motlan  , Mihardi Satria , S Abd Hakim
Published: July 2024

After inquiry learning research is carried out, it is necessary to investigate problems and find problems based on clear concepts based on observations. Creativity is the ability to create something new. The proposed activities are based on physical phenomena through experiments. Prior knowledge of a problem may detract from an investigation, as it may prefer to retain known evidence rather than devise new alternatives. Creativity is the ability to think to come up with solutions, ideas, ways, products as solutions to existing problems. Innovative is the process of doing something in a new way. The process skills of discovering and developing concepts, theories, legal principles and facts are science process skills (KPS). Based on investigations and problem findings, creative inquiry learning with a process skills approach is used. The method in this research is analysis of indicators of inquiry learning syntax (problem formulation, hypothesis formulation, data collection, hypothesis testing and conclusions), creativity (KE experimental group and KK control group) and science process skills (KE and KK). The concepts developed mutually support inquiry, creativity and process skills. Students' ability to investigate and find problems can be realized.
Fast Food Consumption Patterns Nutritional Status and Anemia Among Female
Authors: Masthalina Herta , Purba Melly , Pangaribuan Lampita
Published: July 2024

This study aims to analyze the patterns of fastfood consumption, nutritional status, and prevalence of anemia among female students in the Nutrition Department of Poltekkes Medan. An observational method with a cross-sectional design was used on 73 female students. Data on the frequency of fastFood consumption was collected using a semi-quantitative FFQ, nutritional status was assessed based on BMI, and hemoglobin levels were measured using the Cyanmethemoglobin method. The results showed that 45.20% of respondents frequently consumed fast food, with an obesity prevalence of 35.70% and anemia prevalence of 35.60%. There was a significant relationship between fast food consumption and nutritional status (p=0.042), but not with anemia status (p=0.540). In conclusion high fastfood consumption correlates with obesity and anemia. Efforts are needed to increase the availability of healthy food on campus and further research on the long-term impact of ast Food consumption on student health.
Molecular Docking of Gamma Amino Butyric Acid GABA on Rattus Norvegicus B-receptor as Antidiabetic
Authors: Indrowati Meti , Harlita  , Fatmawati Umi , Ariyanto Joko , Retnaningtyas Estu
Published: July 2024

Earlier research reported that GABA had a correlation with diabetes in processes of glucose homeostasis. This study aims to identify the validity of B-receptor Rattus norvegicus as GABA protein target, modeling the structure and knowing the binding affinity between GABA and B-receptor Rattus norvegicus through molecular docking.   The research was carried out using in-silico method.  The interaction of GABA with the target protein was determined using SuperPred, followed by modeling the protein target using SwissadMe. Ramachandran Plot and Errat Procheck are used to determine the validity of the protein target. Molecular docking was determined using Pyrx and PyMol. The results showed that GABA binding to the B- receptor Rattus norvegicus has biological activity as glucose oxidase inhibitor and antidiabetic.  The conclusion are: B-receptor Rattus norvegicus is a valid protein target for binding to GABA; there are four 3-dimensional models of B-receptor Rattus norvegicus and the best model has 98.43% sequence identity; the binding affinity of GABA (ligand) on B-receptor Rattus norvegicus from the best model is -3.4 kcal/mol energy, 1.773 RMSD lower bound, and 1.81 RMSD upper bound. It is suggested that this research might be used as an empirical basis to further investigate GABA as antidiabetic.
Subchronic Toxicity Test of Purple Leaves Ethanol Extract (PLEE) on the Histopathological Picture of the Lymph of Wistar Rats and Antioxidant Activity
Authors: Darmayanti  , Dewi Niluh Puspita , Mariyani  , Tandi Joni , Rachmawati Meike , Susanto Yuliet
Published: July 2024

This study aims to determine the toxic effects of purple leaf ethanol extract on lymph organs at doses of 500; 2.000; and 5.000 mg/kgBB administered for 28 days and and to determine the antioxidant activity of purple leaf Graptophyllum pictum (L.) This study is an experimental study with a random group design, using 20 test animals divided into 4 groups consisting of two treatment groups, namely in the normal control group given Na-CMC 0.5% and the experimental group given PLEE (k1: dose 500 mg/kgBB, k2: dose 2.000 mg/kgBB and k3: dose 5.000 mg/kgBB hematoxylin-eosin staining (HE) using a computer-connected Motic BA210 microscope with 40X magnification in 5 fields of view and antioxidant test using DPPH method with UV-Vis Spectrophotometer at 516 nm wavelength with concentration 20, 40, 60, 80, and 100 ppm. The results showed that leaf ethanol extract was toxic at a dose of 2.000 mg/kgBB – 5.000 mg/kgBB against the diameter of lymphatic organ pulp, organ index and organ weight, there were symptoms of toxicity and purple leaf ethanol extract had strong antioxidant activity with 66.26 μg/mL.
The Effect of Ecological and Physiological Adaptation of Food Crops on Food Security in the Banyumas Highlands Region
Authors: Wijayanti Kartika Eka , Mulyani Altri , Sukmaya Syahrul Ganda , Wicaksari Sifa Aulia , Saputro Wahyu Adhi
Published: July 2024

This study aims to analyze the influence of ecological and physiological adaptations of food crops on food security in the highland area of Banyumas Regency. The research area includes Baturaden, Kedungbanteng, and Cilongok Districts, which are known to have a surplus of rice food reserves. Ecological adaptation includes how food crops adapt to specific environmental conditions at high altitudes, while physiological adaptation includes plant responses to factors such as temperature, humidity, and soil type. The data used in this study came from the Central Statistics Agency of Banyumas Regency in 2021. The results show that food accessibility, measured through physical and social access, has a significant correlation with food security. Physical and social access were significantly correlated with food security, with significance values of 0.046 and 0.017, respectively. The study concluded that the ecological and physiological adaptations of food crops play an important role in supporting food security in the Banyumas highlands, and that increased physical and social accessibility can improve food security stability in the region. Local governments need to focus on providing facilities and infrastructure that support food accessibility to ensure sustainable food security in the highlands.
Improving Students’ Science Process Skills through Level of Inquiry Learning Assisted by Liveworksheet on The Concept of Environment Change
Authors: Sa'adah Sumiyati , Andini Fadella Syifa , Yusup Iwan Ridwan
Published: July 2024

In the 21st century, scientific process skills are highly sought after. Interactive learning models and media can effectively train students in these skills. This research investigates the use of the Levels of Inquiry learning model assisted by Liveworksheet to improve students' science process skills in the context of environmental change. The study employs a quasi-experimental design with a non-equivalent pretest-posttest control group. Purposive sampling was used to select the participants. Data collection relied on a test sheet containing descriptive questions aligned with ten science process skill indicators. The t-test analysis (p < 0.05) revealed a significant difference in the improvement of science process skills. Notably, the increase was higher in classes utilizing the Levels of Inquiry Model with Liveworksheet compared to those without. The findings demonstrate that the Levels of Inquiry Model assisted by Liveworksheet  has a significant positive impact (large effect size, d = 0.84) on developing students' science process skills when studying environmental change.
Investigation of TPACK Skills of Elementary to Secondary School Teachers in the Context of Educational Technology: Profile and Challenges
Authors: Hasanah Nur Riski , Turmudi  , Jupri Al
Published: July 2024

This research addresses a gap in previous studies that typically focus on a single education level, lacking comparative analysis across primary to secondary education. The study explores the TPACK (Technological Pedagogical Content Knowledge) profiles and barriers faced by mathematics teachers at different educational levels. Previous research often lacks an in-depth examination of these barriers in mathematics teaching. The novelty lies in its multi-level comparative approach, offering insights rarely discussed in existing literature. Using mixed methods, including in-depth interviews, classroom observations, and document analysis, the study provides comprehensive data through triangulation. Findings indicate variations in TPACK skills among mathematics teachers in Banjarmasin. An elementary school teacher exhibited excellent TPACK skills despite insufficient learning documents. A junior high school teacher showed adequate skills but faced similar document preparation issues. A high school teacher displayed excellent skills with complete supporting documents. Differences in TPACK skill profiles stem from barriers such as limited technological access and infrastructure, inadequate training, high workload, teachers' attitudes toward technology, and unsupportive institutional policies. This research underscores the need for tailored interventions to address these barriers and enhance TPACK skills across educational levels.
The Relationship between E-Book Material on Grouping Animals Based on Food Type and the Scientific Literacy Ability of Students in Elementary Schools
Authors: Sulistiani Nur Afifah , Sukmawati Wati
Published: July 2024

The research aims to determine the level of validity and practicality as well as the partial relationship between e-book material on grouping animals based on food type and students' scientific literacy abilities at SDN Rambutan 02, East Jakarta. The research uses mixed research methods, with a quasi-experimental design model and a development model. The instrument trial involved 3 experts, namely media experts, material experts and language experts. Meanwhile, the group trial involved 45 students and 2 class teachers. Data analysis techniques include tabulation of expert validator questionnaire data and teacher and student response questionnaire data. This research shows that the level of validity and practicality of developing e-book-based science teaching materials is very good, and the results of the significance test of the relationship between e-book material on grouping animals based on food type and students' scientific literacy abilities show a t-count of 14.526 with a significance level of 0.000. So, it can be said that there is a significant relationship between the e-book material on grouping animals based on food type and the scientific literacy abilities of students at SDN Rambutan 02, East Jakarta.
Rare Earth Elements (REE) Extraction from The Stones Hill at Padang Area by Precipitation
Authors: Susanti Oknovia , Azizi Zeky
Published: July 2024

Rare Earth Elements (REE) are a very important element in modern life such as electronics, materials engineering, and even medicine. Gadolinium (Gd) is one of the REEs that is used as a basic material for implants as well as being used for other basic materials such as a corrosion inhibitor, control rods for nuclear reactors, and others. In this case, the elements are found along hills in the Padang area which have the potential to be produced in large quantities from six rock minerals such as granite, basalt, clay, silica, tuff, and limestone.). Based on the results of identification using the XRF spectrometer test tool, it was found that the six mineral rocks had an abundance of rare earth elements. The results of testing the extraction of Gadolinium Oxide (Gd2O3) using XRF were successfully carried out, Gd2O3 can be extracted by 0.06% - 1.84% in basalt rock, 0.47% - 0.95% in clay rock, and 0% - 0.88% in silica rock. This proves that the main rock minerals from stones have the Rare Earth Elements (REE) and can be extracted with using the Precipitation Extraction method.
Development of DPIB Basics E-Module at SMK Dhuafa Padang
Authors: Masrizal  , Giatman M. , Rizal Fahmi , Hendriyani Yeka , Putra Meiyaldi Eka
Published: July 2024

In this research, the 4D model development stages (Define, Design, Develop, and Disseminate) were used which include needs analysis, design, development, and dissemination. The validation results of media experts and material experts show that this E-Module is very suitable with a validity percentage of 75.78% by experimental group experts and 64.67% by control group experts. These results indicate that the E-Module developed through the 4D model is suitable for use in the learning process. The development of E-Modules in vocational schools can be an effective solution to overcome the challenges of students' understanding and skills in DPIB subjects. By using a 4D model in its development, high validation results from media and material experts show that this E-Module has very good quality. It is hoped that the use of this E-Module can improve students' understanding and skills in basic areas that are important for preparation for the world of work. Furthermore, this research also provides recommendations for E-Modules in the broader context of learning, teacher training and other material development.
Development of an Interactive E-Module on the History of Quantum Physics Assisted by Flip PDF Professional
Authors: Mithasari Anggita Dewi , Laeli Silvia , Farkhan Muhamad Mi’da , Mahmudah Rida Siti Nur’aini
Published: July 2024

The rapid development of technology greatly affects the education system in Indonesia, especially in the use of Information Technology (IT) devices such as hardware and software in the teaching and learning process. This research focuses on developing interactive e-modules using the Flip PDF Professional application to improve students' quantum physics learning experience. This research problem addresses the difficulties faced by students in understanding quantum physics concepts, which leads to low academic achievement. This study aims to assess the feasibility and user satisfaction of the interactive e-module "History of Quantum Physics" developed with the help of the Flip PDF Professional application. The research method used is ADDIE (Analyse, Design, Development, Implementation, Evaluation) which involves validation by material experts and trials on physics education students at two universities. The results showed that the feasibility of interactive e-modules of quantum physics history by media and material experts obtained results that were feasible to be tested without revision with a percentage of 81.8%. So that the e-module can be tested on undergraduate and postgraduate physics education students. User satisfaction test results show that e-modules can be used as a support for quantum physics learning media with a satisfaction percentage of 91.33% or very satisfied.
Development of an Ethnobotanical Encyclopedia on the Antar Ajong Ceremony
Authors: Prawati Lisa , Sunandar Ari , Setiadi Anandita Eka
Published: July 2024

The Antar Ajong ceremony is a ritual before planting rice carried out by the Sambas Malay Tribe. Plant diversity in the Antar Ajong ceremony can be developed in the form of an encyclopedia to support learning at school. This study aims to measure the validity of the media and student responses to the encyclopedia developed. The research used Research and development (R&D) with a modified 4D development model that includes the define, design, and develop stages. Data collection used interviews, observations, and questionnaires. The data was analyzed using a Likert questionnaire. The validation test obtained a value from media experts of 96.88% (very valid), material experts of 91.66% (very valid), and linguists of 88.14% (very valid). Students gave very good responses to the small-scale (99.35%) and large-scale (98.25%) trials. So it can be concluded that the ethnobotanical encyclopedia media at the Antar Ajong ceremony of the Malay Tribe of Paloh District, Sambas Regency, is feasible to apply in learning and get a positive response. This encyclopedia medium can also be used as a medium for preserving the local wisdom of the Paloh Paloh District Malay community at the Antar Anjong ceremony.
Trends Research Project Based Learning (PjBL) Model to Improve Science Process Skills in Students' Science Learning (2015-2024): A Systematic Review
Authors: Napitupulu Nurasyah Dewi , Hutahaean Juniar , Fauziyyah Asri Nur Lathifah
Published: July 2024

Science process skills are very important for students to apply scientific methods and develop knowledge in order to gain new knowledge or enrich existing knowledge. Science process skills can be facilitated through learning with a Project Based Learning (PjBL) model. This research aims to identify and analyze research trends of PjBL model to improve science process skill in science learning. This research method is descriptive and analytical. The data used in this research was obtained from documents indexed by Google Scholar from 2015-2024 using Publish or Perish and Dimension.ai. Research procedures use PRISMA guidelines. The data identified and analyzed are the type of publication, publication source, and the title of research on PjBL model to improve science process skill in science learning that is widely cited. The data analysis method uses bibliometric analysis assisted by VOS viewer software. The results of the analysis show that research trend on PjBL model to improve science process skill in science learning indexed by Google Scholar from 2015 to 2024 has experienced a fluctuating increase. However, in 2024 there will be a decline in the research trend on it. There are many documents in the form of articles, proceedings, chapters, preprints and edited books that discuss research into the PjBL model to improve science process skill in science learning. Key words that are often used in research about it are local wisdom, inquiry model, PBL, scientific attitude, etc.
Modulation of Microbiota and its Impact on Depression
Authors: Kousik Maparu
Published: July 2024

Gut microbial flora is the largest micro-ecosystem in the human body, it is symbiotically associated with the host; and maintains normal physiological processes in a dynamic equilibrium state. A plethora of evidence supports that gut microbial flora influences the neurotransmitters of the central nervous system. This gut flora influences cognitive function, anxiety, depression; and mood disorders as they are capable of synthesizing neurotransmitters in the nervous system. Therefore intake of probiotics influences gut microbiome; and depression. The versatility and number of gut microbial flora varies individually, so the content of common gut microbes may affect the neurotransmitters, manipulating the gut microbiota with probiotics offers a novel approach to treat brain disorders such as depression via GUT-BRAIN AXIS. The present review outlines the aspect of such alterations and how modulation of gut microbiota influences depression.
Screening for BK Virus Infection in Kidney Transplant Recipients at Mohamed V Military Teaching Hospital
Authors: O Skalante , S Elkochri , FZ Adil , M Hachimi Idrissi , Y Aadi , Y Elbenaissi , A Bahadi , MR Tagajdid , H Elannaz , A Laraqui , B Elmchichi , N Touil , K Ennibi , I Lahlou Amine , R Abi
Published: July 2024

After kidney transplantation, BK polyomavirus reactivation can manifest as nephropathy in 1% to 10% of patients. PCR testing of urine and blood is commonly used to screen for BK polyomavirus nephropathy. The study aims to detect BK virus infection in kidney transplant patients to prevent tubulointerstitial nephropathy and graft loss. This retrospective study includes 26 patients who underwent kidney transplants between January 2019 and December 2023. We diagnosed BK virus infection by performing real-time PCR on blood and urine samples. BKV DNA was detected in 3 patients. Reducing immunosuppressive therapy led to negative PCR results and favorable clinical and biological outcomes in these 3 patients.
Catalytic Oxidation-like Nuclear Nano-fusion; Fractal Involving of Room Temperature Magnetically Induced μ-Catalyzed Fusion
Authors: Widastra Hidajatullah Maksoed
Published: July 2024

The nuclear fusion reaction can be catalyzed in a suitable fusion fuel by muons (heavy electrons). “For the fractal relations, ranging from DNA knots to solar neutrino flux signals”, ever derived of scale-invariant properties distinguished between classical invariant theory & quantum invariant theory subfactors. Accompanying isomorphic & Connes FusionTensor Product retrieved to μ-catalyzed fusion where surroundings of room temperature fusion driven by the balance in mtDNA fusion & fission. On behalf of the nanometer dimension of the radius of heavy electrons & wavelength of UV-light, it assumed that muons can be produced by oxidation-like decay when UV-light impinging water.
Assessing Four Neural Networks on Handwritten Digit Recognition Dataset (MNIST)
Authors: Feiyang Chen  , Ziqian Luo  , Nan Chen  , Hanyang Mao  , Hanlin Hu  , Ying Jiang  , Xueting Pan  , Huitao Zhang
Published: July 2024

Although the image recognition has been a research topic for many years, many researchers still have a keen interest in it. In some papers, however, there is a tendency to compare models only on one or two datasets, either because of time restraints or because the model is tailored to a specific task. Accordingly, it is hard to understand how well a certain model generalizes across image recognition field. In this paper, we compare four neural networks on MNIST dataset with different division. Among of them, three are Convolutional Neural Networks (CNN), Deep Residual Network (ResNet) and Dense Convolutional Network (DenseNet) respectively, and the other is our improvement on CNN baseline through introducing Capsule Network (CapsNet) to image recognition area. We show that the previous models despite do a quite good job in this area, our retrofitting can be applied to get a better performance. The result obtained by CapsNet is an accuracy rate of 99.75%, and it is the best result published so far. Another inspiring result is that CapsNet only needs a small amount of data to get the excellent performance. Finally, we will apply CapsNet's ability to generalize in other image recognition field in the future.
Electropenetrography with Alternating Current Reveals In Situ Changes of Aedes aegypti Probing Behaviors Associated with Dengue Virus Infection
Authors: Jameson Samuel B , Vaughan Lyndsi D , de Verges Jane E , Carter Brendan H , Dobek Georgina L , Londoño-Renteria Berlin , Wesson Dawn M
Published: July 2024

Human infection with dengue virus (DENV) results in significant morbidity and mortality around the world. Current methods to investigate virus-associated changes in insect feeding behaviors are largely restricted to video analysis of feeding events outside of the host or intravital microscopy. Electropenetrography, a method originally developed for plant-feeding insects, offers a promising alternative by allowing high-resolution recording of voltage changes across the insect bite interface. We compared recordings from DENV-infected Aedes aegypti mosquitoes feeding on uninfected mice and uninfected A. aegypti feeding on DENV-infected mice to controls of uninfected A. aegypti feeding on uninfected mice. We found significant mosquito behavioral changes in both DENV-infected groups compared with controls including longer feeding times and longer preingestion probing events for A. aegypti feeding on DENV-infected mice and a higher number of sequential probing events in DENV-infected A. aegypti feeding on uninfected mice. By recording mosquito feeding and probing events beneath the surface of the skin, we have been able to both confirm and add new dimensions to previous findings regarding DENV-associated behavior changes in A. aegypti. This provides a foundation for increasingly in-depth studies focusing on the transmission of the DENV between vectors and hosts.