bluuebunny/crossref_metadata_2025 huggingface dataset:
Blended learning model: The effect on physics problem-solving skills viewed from self-efficacy
Authors: Susanti Agus , Diani Rahma , Satiarti Rina Budi , Munawaroh Rohimatun , Fujiani Dwi
Published: March 2021

This study aimed to determine the effect of the blended learning model on the problem-solving skills of students with high and low self-efficacy as well as their interactions. The research method used was a quasi-experimental research with nonequivalent control group design. The population of this study was all tenth-grade science students of SMA Al-Azhar 3 Bandar Lampung. The sampling technique used was random. The instruments employed in this study were a test in the form of essay questions to measure students’ problem-solving skills, a questionnaire to measure self-efficacy, and observation sheets. The hypothesis had been tested using 2 way ANOVA. The results of the hypothesis testing are as follows: 1) there was an effect of using the blended learning model on problem-solving skills in terms of self-efficacy, 2) there was an effect of self-efficacy on problem-solving abilities, and 3) there was no interaction between the blended learning model and self-efficacy.
The validity and practicality of the student worksheet using STEM-based multiple representations in physics learning
Authors: Anggraeni A A , Distrik I W , Rosidin U
Published: March 2021

The objective of this research was to produce a valid and practical student worksheet using Science Technology Engineering and Mathematics (STEM)-based multiple representations and integrated with twenty first century learning in vibration and wave topic. This research used Research and Development (R & D) method by following 4-D model steps. 15 sample students of grade XI were taken with random sampling. Research instruments were validation sheets, student worksheet implementation observation sheets, and questionnaires. Data were analyzed descriptively and qualitatively. The result showed that the student worksheet by using STEM approach based on integrated multiple representations and integrated with twenty first century learning was: 1) valid by content with average score of 85.41 and valid by construct with average score of 83.88; 2) practical to use in vibrations and waves learning materials and it was shown by average student worksheet implementation by above 80% and 86.66% positive students’ responses to the student worksheet.
The Development of 3D Flipbook E-Learning Module of English Mathematics Profession
Authors: Evenddy S S , Hamer W , Pujiastuti H , Haryadi R
Published: March 2021

This development research aimed to design a 3D Flipbook e-learning module and determine students’ perceptions of the developed 3D Flipbook e-learning module. The research method used was development research with the ADDIE development model which consisted of Analyse, Design, Develop, Implement, and Evaluate stages. The instruments used in this study were validation sheets of material experts and media experts, pre-test and post-test quizzes, and questionnaire sheets. This feasibility of the developed 3D Flipbook e-learning module was verified by the content experts, media experts, and trials to the preservice teacher at Sultan Ageng Tirtayasa University. The validation by material experts obtained a percentage of 86.97%, the validation by media experts obtained a percentage of 89.65%, and trials to students obtained a percentage of 78.7%. Overall, it can be concluded that this teaching material is good and appropriate to be used to facilitate students in learning English in the mathematics profession. For data processing using normalized gain techniques, the results were obtained in the medium category 0.3 ≤ g <0.7 equal to 0.669048. It can be concluded that the 3D Flipbook e-learning module is quite effective and suitable to be used in classroom learning.
The use of augmented reality to improve mathematics conceptual understanding of pre-service elementary education teachers
Authors: Hendracipta N , Rafianti I , Pujiastuti H , Haryadi R
Published: March 2021

The purpose of this study was to determine the understanding of mathematics concepts of pre-service elementary education teachers at Universitas Sultan Ageng Tirtayasa (Sultan Ageng Tirtayasa University) through augmented reality learning media. The method used in this study was a quasi-experiment with the design of one group pre-test and post-test. The instrument used in this study was a test of understanding of mathematics concepts on geometry topic in the form of 10 description tests and tested on 20 pre-service teachers (higher education students). The average result of N-gain in pre-service elementary education teachers was 0.48 in the medium category. Based on the results obtained, the use of augmented reality can be used as a learning medium for mathematical concepts. In the learning process, students can easily understand the material taught. The suggestion in this research is that further development of augmented reality media is needed at all levels of education and it needs to be tested in a larger scale in order to know its effectiveness to be used in all levels of education.
The Analysis of the Ability of Preservice Teachers in Compiling an Analysis Rubric for Learning Performance Assessments
Authors: Haka N B , Hamid A , Puspita L , Widiawati N , Reftyawati D , Anggraini W
Published: March 2021

This study aimed to explore techniques to make analysis rubrics on performance assessments based on the teaching experience of preservice teachers. The method of this study was descriptive qualitative. The random sampling technique was used to select the final semester of Biology Education Study Program students who had taken the Learning Evaluation course, Curriculum Development, Community Service Program, and Field Experience Practices. The data was collected using a closed-ended questionnaire with a Likert scale, interviews to obtain data related to students’ ability to compile an analysis rubric, and documentation to determine the suitability of the analysis of performance assessment rubrics in the sample lesson plan. The results showed that the ability of some preservice teachers to compile an analysis rubric on performance assessment was still inadequate (35. 49%). The obstacles experienced by the preservice teachers were in determining rubric criteria, compiling rubric descriptions, integrating biology-specific material with scientific work capabilities, and scoring the analysis rubric. This showed that the preservice teachers needed to have sufficient training in compiling an assessment rubric that is specific for biology material to optimize the assessment of learning performance.
Developing mathematics video assisted by powtoon application in contextual learning approach
Authors: Mujib  , Mardiyah  , Farida  , Rachmadina Destria , Pratiwi Dona Dinda
Published: March 2021

The purpose of this research and development was to develop an instructional media assisted by PowToon application in a contextual learning approach on statistical material for eighth-grade students of SMP Muhammadiyah 1 Kalianda and MTs Negeri 1 Bandar Lampung. The study was conducted to test the feasibility and attractiveness of the developed learning media. ADDIE model was used as the development model (Analyze, Design, Development, Implementation, and Evaluation). The developed media was categorized as feasible based on media and material expert validation. Sixty respondents on a small scale and large scale trials stated that the developed learning media was very interesting with the obtained percentage of 87%. It can be concluded that the developed media produced good results in its implementation.
Institutional strengthening of farmer group to support sustainable agriculture and food security in Pesawaran regency
Authors: Listiana Indah , Mutolib Abdul , Bursan Rinaldi , Yanfika Helvi , Diana Widyastuti Raden Ajeng , Rahmat Ali
Published: March 2021

Sustainable agriculture and food security can be realized through the institutional strengthening of farmer groups, namely independent business and collective solidarity in facing land degradation problems, environmental quality degradation, and food security problems. This study aimed to analyze the role of farmer group institutions in supporting sustainable agriculture and food security of farmers. The method used in this study was a survey research method. The research approach used was a quantitative approach that is supported by qualitative data. Data used in this study were primary data from interviews using questionnaires to research respondents and in-depth interviews. Furthermore, the data were analyzed by the tabulation technique and analyzed by correlation analysis using the SPSS application. The results showed that the There is no significant relationship between the roles of farmer groups in preserving the environment. However, farmer groups as learning units have a significant relation to farmers’ ability to preserve the environment. The relationship between farmer group institutions (means for learning, cooperation arena, and production units) and household food security level has a very significant relation both as a whole and as a group function. The institutional strengthening of farmer groups indirect affected the improvement of environmental quality and had a direct effect on rice farmers’ food security in Pesawaran Regency.
Construction Ethnoscience-Based Learning Environment Material in Scientific Knowledge
Authors: Asiyah  , Sapri Johanes , Novitasari Naintyn , Saregar Antomi , Topano Adrian , Walid Ahmad , Tamrin Kusumah Raden Gamal
Published: March 2021

The Indonesian 2013 curriculum does not specifically provide ethnoscience material in student handbooks. Therefore, the purpose of this study is to develop ethnoscience learning modules that are feasible and practical for use. The research method uses the Borg & Gall development model which consists of 8 stages, namely a preliminary study stage, a research planning stage, a design development stage, an initial trial phase, an initial product revision, a limited field test, a revised stage of the results of a limited field test, and a product stage end. This research is limited to the limited field trial stage namely the feasibility and practicality of the module. Data from the analysis of the questionnaire by calculating the percentage of achievement in each component of the percentage of achievement criteria of eligibility and practicality of science learning modules based on ethics that was developed. Ethnographic-based science learning modules developed were declared feasible to be used with a percentage of 92.00% (linguists), 76.25% (material experts), 86.25% (design/media experts) with the very feasible, feasible, and very feasible and the percentage of eligibility of 3 colleagues is 89.46%. From the results of these data, it can be concluded that the module has been feasible and practical to be used as teaching material in supporting the teaching and learning process on the material interaction of living things with their environment in junior high school 7th grade.
The effects of multiple representations-based learning in improving concept understanding and problem-solving ability
Authors: Wayan Distrik I , Imam Supardi Zainul Arifin , Jatmiko Budi , Yuberti
Published: March 2021

The objective of this research was to find out effects of multiple representations-based learning model in improving concept understanding and problem solving in electricity subject. This research used pre-test and post-test quasi-experiment design with control group. Samples were 184 respondents containing of 92 samples respectively for experiment and control groups. Data were collected using multiple choice and essay test. Analysis of data was done by using normality test, homogeneity test, independent sample t-test. The result showed that there was a significant difference post-test and normalized gain (n-gain) of concept understanding and problem-solving ability between experiment and control group. The application of multiple representations-based learning in electricity subject had positive effect in improving concept understanding and problem solving compared to traditional model being used so far.
Procedural error of XIIth grade high school students in solving algebra problems based on Elbrink’s theory
Authors: Andriani S P , Triyanto  , Nurhasanah F
Published: March 2021

This study was intended to determine procedural errors made by students in solving mathematics problems. This was a descriptive qualitative study. The selected subjects were high school students in Karanganyar Regency. The subject-taking technique was purposive random with snowball sampling. The types of procedural errors revealed by Elbrink found in this study were: (1) Misidentification, students made mistakes in applying the algorithm by finding that some students were still not precise in implementing the search line and comparing the function value of each extreme point, which was not needed to solve the problem, (2) Misgeneralization, students made mistakes by generalizing an existing concept and thinking that the general rules of linear program were the real rules, and (3) Repair Theory, students did not understand how to solve the mathematical problems, they made mistakes by directly using any x and y values to find the extreme point to solve linear program problems, without paying attention to inequalities as the requirements and limitations to the questions.
Construct 2 learning media developments to improve understanding skills
Authors: Mujib  , Widyastuti R , Suherman  , Mardiyah  , Retnosari T D , Mudrikah I
Published: March 2021

The objectives of this research were to find out how to develop, to know the feasibility, and to find out the teacher’s and students’ responses toward Construct 2 as the mathematics learning media on polyhedron material. The use of instructional media can make data presentation more attractive and reliable, facilitate data interpretation, summarize information, and increase students’ understanding. This research employed the Research and Development method or R&D with ADDIE as the development model (Analysis, Design, Development, Implementation, and Evaluation). The data collection techniques employed were questionnaires and documentation. The questionnaires were distributed to four kinds of respondents, namely the media expert, the material expert, the student, and the teacher. The result of validation by media expert was in the high category. The results of the validation by the material expert and the media expert stated that the Construct 2 learning media was suitable to be used in teaching and learning activities for the seventh-grade students on polyhedron material. The application of Construct 2 was categorized as excellent based on the results of the small-group trial and large-group trial. Furthermore, the teacher’s responses during the trials indicated that the Construct 2 learning media was categorized in the excellent category.
The influence of mobile instant messaging with scientific approach on students’ critical-thinking skills in physics learning during covid-19 pandemic
Authors: Latifah S , Koderi  , Firdaos R , Khoeriyah E T , Hidayah N , Ahmad M N F
Published: March 2021

The purpose of this study was to determine the influence of Mobile Instant Messaging with the scientific approach on critical-thinking skills on physics learning during the Covid-19 pandemic. The research method used was a quasi-experimental research with a non-equivalent control group design. The population of this study was all eleventh-grade science students Senior High School Bandar Sribhawono. The sampling technique used the purposive sampling technique. The instrument used a test in the form of essay questions to measure students’ critical-thinking skills. Based on the critical-thinking skills, the experimental class and control class obtained 72.60% and 61.30% in the basic support indicator. In elementary clarification indicator, the experimental class and control class obtained 64.40% and 51.90%. In advanced clarification indicator, the experimental class and control class obtained 62.20% and 45.30%. Indicator of inference, the experimental class and control class obtained 67.90 and 46.40%. Indicator of strategy and tactics, the experimental class and control class obtained 66.40% and 46.09%. The score of students’ critical thinking skills in both classes was tested with the independent sample t-test with the obtained sig value of 0.001 <0.05. Thus, Ha was accepted which indicated that the students were able to think critically. In this study, it can be stated that there was an influence of mobile instant messaging with a scientific approach on students’ critical-thinking skills.
Project-based learning through STEM approach: Is it effective to improve students’ creative problem-solving ability and metacognitive skills in physics learning?
Authors: Fiteriani Ida , Diani Rahma , Hamidah Athi’ , Anwar Chairul
Published: March 2021

This study was aimed to determine the effect size of the PjBL learning model with the STEM approach in improving students’ creative problem-solving ability and metacognitive skills in physics learning. The results of the data analysis showed that there was an influence of the application of the PjBL learning model with the STEM approach toward students’ creative problem-solving ability and metacognitive skills. The creative problem-solving ability score obtained by the experimental class was 0.39 while the control class obtained a score of 0.30. in terms of metacognitive skills, the experimental class obtained a value of 0.30 while the control class obtained a value of 0.20. The PjBL learning model with the STEM approach was more effective in increasing the students’ creative problem-solving ability and metacognitive skills indicated by obtained effect size value of 0.72 and the effect size of the metacognitive skill of 0.64 in the medium category. Based on the results of the MANOVA test, the creative problem-solving ability and metacognitive skills were less than 0.05 (sig <0.05). It can be concluded that there was an effect of the application of the PjBL learning model with the STEM approach toward students’ creative problem-solving ability and metacognitive skills in physics learning.
How to design the application of science in primary school during the Covid-19 pandemic?
Authors: Rodin Imam , Widayanti
Published: March 2021

This study aimed to design the application of science during the Covid-19 pandemic in elementary school. This study used the literature review method which was divided into two types of references, primary references (8 references) and secondary references (supporting journal articles). References were sourced from google scholar, tandfonline, and observations in the surrounding environment. Data analysis was carried out in stages, starting from collecting data, analyzing, and drawing conclusions. The results of this study provide a design for the application of science in elementary schools during the Covid-19 pandemic, by implementing good communication between students, teachers, and parents, and the need for appropriate media to help students understand learning topics. Besides, through the design of the application of science to learning, it can overcome learning problems by implementing the Covid-19 Health protocol.
The validity of introduction to nuclear physics e-module as a teaching material during covid-19 pandemic
Authors: Misbah M , Sasmita F D , Dinata P A C , Deta U A , Muhammad N
Published: March 2021

During this pandemic era, learning becomes inseparable with technology. Online learning can be an alternative in using technology during the current Covid-19 condition. An example is shown through the use of Flip PDF Professional electronic module (e-module). Therefore, this research and development of an e-module on the Introduction to Nuclear Physics is carried out. This study aimed to describe the validity of the e-module developed. Research and Development method was selected for this study, and ASSURE model was further implemented with the focus on utilizing the developed instructional material. The instrument used in this study is an e-module validation sheet. The data analysis showed that the developed e-module fell into score of 83.80% which was categorized as “valid” category. Thus, Introduction to Nuclear Physics e-module is a suitable teaching material alternative during the Covid-19 pandemic. Further studies are suggested to investigate the practicality and effectiveness of this e-module.
The influence of student facilitator and explaining (SFAE) learning model viewed from social skills in improving students’ mathematical representation ability
Authors: Putra F G , Meriyati  , Safitri V I , Nursa’idah W , Putri D. , Mistasari N , Isnaini M , Widyawati Santi , Yunian Putra Rizki Wahyu
Published: March 2021

This study aimed to determine the influence of the Student Facilitator and Explaining (SFAE) learning model in terms of social skills in improving students’ mathematical representation abilities. This research employed the quasi-experiment design with an essay test and questionnaire as the research instruments. Both classes were given pretests and posttests. The data were analyzed using the two-way ANOVA with a significance level of 5%. %. The research results discovered that (1) there was an influence of the SFAE learning model in improving students’ mathematical representation ability, (2) there was an influence of high, medium, and low social skills in improving mathematical representation ability, and (3) there was no interaction between the SFAE learning model and social skills in increasing students’ mathematical representation ability. This shows that SFAE learning has an effect on increasing the representative ability of students, so it is hoped that educational institutions can use this learning in the learning process.
The morphology and scaling law model of polyvinylidene fluoride/carbon fiber using electrospinning technique
Authors: Jauhari J , Almafie M R , Annisa M , Mataram A , Marlina L , Idjan M K N A , Sriyanti I
Published: March 2021

Electrospinning is a simple process used for polymer fibers that have diameters ranging from micro to nanometers. The purpose of this study was to investigate the morphology and scaling law model of Polyvinylidene Fluoride/Carbon (PVDF/Carbon) fiber math. Fiber is made by variations in concentration 15% w/w (FPC1), 18% w/w (FPC2), 21% w/w (FPC3) and 24% w/w (FPC4) by adding of 2% (w / w) carbon in each solution. The electrospinning process parameters used are 10 kV voltage, needle tip distance and collector 12 cm, and flowrate 0.1 ml / hour. The results showed that the morphology of FPC1-FPC2 fibers was in the form of bead and the morphology of FPC3-FPC4 are structure free bead. The avarege diameters of FPC1, FPC2, FPC3 and FPC4 are 910 nm, 1123 nm, 1349 nm and 1506 nm, respectively. The scaling law models result R Square (R2) of the experiment was 0.9992, indicating a very linear model relationship between theory and experiment. Polyvinylidene Fluoride/Carbon (PVDF/Carbon) fiber composite will be used as water filtration.
The development of e-modules using Kodular software with problem-based learning models in momentum and impulse material
Authors: Syarlisjiswan Muhammad Ridho , Sukarmin  , Wahyuningsih Daru
Published: March 2021

This research aims to the development of an e-module using Kodular software with a Problem-based Learning model on the momentum and impulse material. This study used the Research and Development method which is a research method used to produce a certain product and test the effectiveness of the product. The development procedure used a 4-D model. The 4-D model consists of 4 main stages, namely: Define, Design, Develop, and Disseminate. The data collection instrument used was a questionnaire given to the material expert and media expert to test the quality of e-module learning media using Kodular software with the Problem-based Learning model on momentum and impulse material. The final product produced has met the eligibility criteria with an average score of the assessment of material expert, 86,8%, media expert 84,8%, and education practitioner/teacher 87,2% in the highest feasible, category percentage for small group trial 86,8% and field trial 86,5%. The result of this research was an e-module with a Problem-Based Learning model that has been developed using Kodular software that accessible via smartphone.
The need analysis of using physic e-module based PjBL– integrated STEM: The preliminary study research as a solution to improve problem-solving skills on light refraction material
Authors: Widiyanto Retno , Herlina Kartini , Andra Doni
Published: March 2021

This study aimed to determine the need for the development of an E-Module based on PjBL-integrated STEM as a learning resource for students on light refraction material. The research used mixed methods, which consisted of qualitative data and quantitative data. This research involved 76 respondents spread across several schools in Lampung Province. Based on the preliminary study conducted, it was known that the majority of students want to use STEM-integrated PjBL-based E-Modules as a learning resource with a percentage of 61.9%, while the use of E-Modules as a learning resource used by teachers is still low at only 9.5 %. The preliminary study also saw that the E-Module that was developed later could measure problem-solving abilities with a percentage of 52.4%. Based on this, the use of E-Modules as a learning resource is needed by students, so it is necessary to conduct a needs analysis for the development of an E-Module based on STEM integrated PjBL to improve problem-solving abilities in light refraction material.
Preliminary Research: Developing Physics Electronic Student Worksheet Based on ExPRession model with the STEM approach
Authors: Sari Putri Mardiana , Herlina Kartini , Abdurrahman
Published: March 2021

The media and teaching materials had been developed based on the needs of students and teachers who needed immediate and precise solutions. For this reason, this study aimed to analyze students’ perspectives on physics learning and teachers’ views on electronic student worksheets (e-LKPD) based on the ExPRession model with the STEM approach to see the opportunities for developing physics teaching materials, especially optical geometric. This study involved 102 high school students and 6 physics teachers in Lampung province. This study was a descriptive qualitative study with questionnaires and interviews as the research instruments. Based on the results of the analysis, it can be concluded that the electronic student worksheet based on the ExPRession model with the STEM approach needs to be developed to improve the communication and collaboration skills, especially in physics material.
Identification of lithology and fluid content using simultaneous inversion in the “IM” field of the North Sumatra Basin
Authors: Al Ayubi Ilham Muhammad , Riyanto Agus , Wahdanadi Haidar M.
Published: March 2021

The “IM” field is an oil and gas exploration field located in the North Sumatra Basin. It was previously identified that in this field hydrocarbons were found in the form of gas condensate. This study aims to characterize the reservoir in terms of lithological distribution and fluid content. The research includes carbonate reservoir targets located in Middle Miocene Malacca Limestone. The data used in this study are 3D seismic data and two wells data. The simultaneous inversion method is applied to process data so that research objectives can be achieved. The simultaneous inversion method produces Acoustic Impedance (Zp), Shear Impedance (Zs). The results show that in the gas reservoir the acoustic impedance (Zp) value is around 16542 - 18917 (ft/s*g/cc) and the shear impedance(Zs) is around 8375 (ft/s*g/cc) while in the water reservoir the acoustic impedance (Zp) value is around 21292 - 23667 (ft/s*g/cc) and the shear impedance (Zs) is around 18500-20525 (ft/s*g/cc). The results showed that the reservoir distribution has a North West-South East orientation.
Physics teachers’ perceptions and anxieties about the use of technology-integrated learning resources on magnetic field material: A preliminary research on augmented reality-integrated STEM learning
Authors: Widyanti R , Abdurrahman  , Herlina K , Zahara M , Agustina L
Published: March 2021

The educational world development faces the challenges of the 21st-century where technology plays an important role in learning so that technology-integrated teaching material is needed. The subjects of this study were 48 physics subject teachers in several schools in Lampung province. The research method used was a mixed method. The data was collected using questionnaires and interviews. The results of the study revealed that the teachers have never made learning resources assisted by the integration between STEM and augmented reality technology. The teachers also revealed that they were anxious that the learning resources that they will use cannot fully meet the competency standards if they are not equipped with learning technology that supports the abstract concepts learning. Thus, the teachers expected technology-assisted learning resources in which texts, images, 3D animations, and videos can be integrated. For further researchers, it is necessary to develop STEM learning resources assisted by augmented reality technology.
Teachers’ perceptions of 3D technology-integrated student worksheet on magnetic field material: A preliminary research on augmented reality in STEM learning
Authors: Zahara M , Abdurrahman A , Herlina K , Widyanti R , Agustiana L
Published: March 2021

The change in civilization aimed at the industrial revolution 4.0 and the era of society 5.0 is a discourse in the world of education. Learning activities are a major part of education at schools, thus, they require learning devices and teaching materials updates. The development of learning resources, such as electronic student worksheets, can be used as a solution to obtain 21st-century skills. This study was aimed to analyze teacher and students’ perceptions about augmented reality-assisted worksheets with STEM approach in physics learning. The research was conducted at high schools in Lampung Province involving 139 twelfth-grade students and 16 physics teachers. The method used was the mixed-method. The research instruments used were questionnaires and telephone interviews. The results showed that teachers have not fully used augmented reality-based teaching materials STEM approach. The types of teaching materials needed by students and teachers are interactive teaching materials integrated with STEM. STEM allows students to deepen their abilities in the fields of science, technology, engineering, and mathematics, so it is necessary to develop augmented reality-assisted worksheets with STEM approach to face the challenges of the industrial revolution 4.0 and meet the competency standards in the 21st-century, namely the critical-thinking ability on magnetic field material.
The influence of control parameter on the morphology polyethersulfone/polyacrylonitrile (PES/PAN) fiber using electrospinning technique
Authors: Danny Pratama Lamura M. , Pulungan Meuretta A , Jauhari Jaidan , Sriyanti Ida
Published: March 2021

Electrospinning is one of a method for fabricating nanometer to micrometre fibres. Some parameters that affect the formation of nanofibers in an electrospinning method such as solution, process, and environmental parameters. This research aims to synthesize and characterize polyethersulfone/polyacrylonitrile (PES/PAN) nanofibers and to analyze the effect of electrospinning parameters on PES/PAN nanofibers. PES/PAN fibres were prepared by dissolving PES with a concentration of 10% (w/w), 15% (w/w), 20% (w/w), and then added 0,5 gram of PAN. The results of fibre morphology with a variety of solutions showed the PPG1 fibre bead and the fibres for PPG2 and the fibre for PPG3, the morphological results of the PPG2 samples with variations in the tip collector distance indicated the fibre. The results of the diameter analysis showed that the effect of solution variation showed fibre for PPG1, PPG2, PPG3, namely 481 nm, 776 nm, 1339 nm, respectively while the diameter variation of the tip collector distance is 5 cm, 10 cm, 15 cm, namely 1266 nm, 860 nm, 401 nm, respectively and the voltage variation at 10 kV, 12 kV, 14 kV, namely 698 nm, 681 nm, 680 nm, respectively. The results of morphology and diameter show that the solution parameters and the electrospinning process affect the shape and diameter of the fibre. Fabricated fibres can be used as matrices in air filtration systems.
Understanding complexity paradigm and sustainability of complex systems: The role of theoretical physics
Authors: Alatas Husin
Published: March 2021

This brief review discusses the complexity paradigm and the sustainability of complex biological, ecological, and socio-economic systems. This paradigm is considered to complement the reductionism paradigm in explaining the natural phenomena. We suggest that the concepts used in theoretical physics can be considered to describe the specific case of complex systems and to develop their dynamical models.
Science and environment for education: Measuring HOTSEP of electricity energy topic using Ichsan and Rahmayanti taxonomy
Authors: Hidayati Sri , Irwandani  , Yusandika Ajo Dian , Anwar Chairul , Rahmayanti Henita , Ichsan Ilmi Zajuli , Mehadi Rahman Md.
Published: March 2021

Learning science in the 21st century focuses a lot on caring for the environment. This study aimed to measure students’ HOTSEP (Higher Order Thinking Skills of Environmental Problem) in the context of environmental problems related to electricity. The descriptive method was used with a sample size of 50 students from several cities in Indonesia. The HOTSEP instrument consists of 3 categories of thinking levels ranging from criticizing environmental problems (C4), solving environmental problems (C5), and developing innovations about the environment (C6). The results showed that the HOTSEP of students was included in the “medium” category (50,41). These results indicate that the level of understanding of electrical concepts and their implementation at the student level in general still needs to be improved. Suggestions for further research, understanding environmental concepts of electricity needs to be introduced to students in general so that they can apply it in their daily lives for the better.
An analysis of students’ physics misconceptions in online learning using the four-tier diagnostic test with certainty of response index (CRI)
Authors: Surmaini  , Syafe’i Imam , Diani Rahma
Published: March 2021

This study was aimed to determine the level of students’ physics misconceptions in online learning using a four-tier diagnostic test with Certainty of Response Index (CRI). The Certainty of Response Index (CRI) is a method used to measure students’ misconceptions about the material taught by teachers. This research was conducted on 27 students of class X TJTL of SMK BLK Bandar Lampung City. The students worked on a four-tier diagnostic test on fluid material which consisted of 20 items. Based on the results of the research, 11 students knew the concept with an average score of 40.74% in the moderate category, 8 students who did not know the concept with an average score of 29.62% in the low category, and 8 students with misconceptions with an average score of 29.62% in the low category.
The scientific argumentation profile of annular solar eclipse phenomenon June 21st 2020 of physics undergraduate student in Universitas Negeri Surabaya
Authors: Deta Utama Alan , Yanti Vivin Khoiri , Misbah  , Mahtahari Saiyidah , Alamsyah
Published: March 2021

Arguments play an important role in determining how strong an understanding of science is. Training and increasing the level of student argumentation can be done in various ways, including by teaching students to argue about natural phenomena around such as the phenomenon of an annular solar eclipse. On Sunday, June 21, 2020, there will be an annular solar eclipse that will pass across parts of Indonesia. In responding to this phenomenon, the perception of the people or citizens of Indonesia is very diverse. Therefore, further research is needed. This research aims to describe and analyze the comprehension and scientific argumentation profile of Annular Solar Eclipse Phenomenon June 21st 2020 of Physics Undergraduate Student in Universitas Negeri Surabaya. This research was conducted with a descriptive qualitative research method and the data analyzed by using an observer rubric adapted of Toulmin’s argumentation pattern. Seventy respondents Physics Undergraduate Student, class of 2017, from Universitas Negeri Surabaya were involved in this study using a questionnaire and interview. The result showed that physics students had a fairly good knowledge and understanding related to the phenomenon of the annular solar eclipse, meanwhile, the subject’s ability in providing scientific argument is at the level of providing claims and evidence, but weak warrant. Subjects will not be able to explain their scientific arguments if they are not supported by the knowledge they have. Therefore, it can be recommended that physics students can improve their understanding of the concept of an annular solar eclipse through a process of argumentation.
Fotiem test to analyze scientific communication skills in linear motion
Authors: Fariyani Qisthi , Kusuma Hamdan Hadi
Published: March 2021

Scientific communication is an important skill for teacher, but so far, lecturers have never evaluate the scientific communication skills of pre-service physics teacher. This study aims to analyze the scientific communication skills of pre-service physics teacher of UIN Walisongo Semarang. The data collection methods used were tests, questionnaires, and documentation. The results of the data analysis showed that the test questions were valid and reliable. There are 27 items in the final product, with one easy question and 26 moderate questions. Pre-service physics teachers’ scientific communication skills are divided into six categories, with a percentage of 23.6% being skilled; 1.2% less skilled type 1A; 2,6% less skilled type 1B; 6.7% less skilled type 2A; 47.9% less skilled type 2B; and 17.9% unskilled. The lecturers need to improve scientific communication skills to pre-service physics teacher. In addition, lecturers also need to analyze pre-service physics teachers’ scientific communication skills other materials.
Effect of concentration double layer ZnO/ZnO:Ag on optical and photocatalytic properties
Authors: Anggita Sheilla Rully , Ghozali Achmad , Kusuma Hamdan Hadi
Published: March 2021

ZnO is a semiconductor material that advantages in various applications, especially for photocatalysts. The catalytic activity of ZnO is much better than other materials, because ZnO can absorb light in a wider spectrum. The double layer ZnO/ZnO:Ag with various concentrations of 0.1 M, 0.3 M, and 0.5 M has been successful deposition. Double layer ZnO/ZnO:Ag deposition was carried out by sol-gel method and spray coating deposition technique. The results showed that the concentration of double layer ZnO/ZnO: Ag increased with the increase of the absorbance value. From the transmittance spectrum attempt was made to estimate the value of energy band gap of the samples. Double layer ZnO / ZnO:Ag energy gap in the range 3,2-3,3 eV. The energy gap of Double Layer ZnO/ZnO:Ag decreases with increasing concentration to 0.5 M. Double layer ZnO/ZnO: Ag 0.5 M has the smallest energy gap of 3.21 eV. Photodegradation testing was carried out to determine the ability of samples to photocatalytic activity at methylene blue dye. The optimum photocatalytic activity is indicated by the largest percentage of degradation. The largest percentage of degradation was shown by Double layer ZnO/ZnO:Ag 0.3 M at 81.5%.
Synthesis and characterization of bioplastic based on chitosan-urea-bentonite
Authors: Azizati Zidni , Haqiqi Arghob Khofya
Published: March 2021

Consumption of synthetic plastic made the level of plastic waste in the world become massive problem in environment. Biopolymer is an alternative which produced from renewable material with an abundant amount in the world. This study aimed to produce bioplastic materials based on chitosan and bentonite, with addition of urea. The method in this research consisted of bentonite preparation, synthesis bioplastics and characterization. Characterization in this research include FTIR, XRD, mechanical strength, and biodegradation. The result in this research showed that the addition of bentonite increased tensile strength of bioplastic. The more bentonite added in the bioplastic system, the higher tensile strength value. The addition of 0,1; 0,5; and 1 g bentonite made the tensile strength of bioplastic increased become 4.17; 4,28; and 4.90 MPa. Whereas the addition of 2 g bentonite decreased the tensile strength of bioplastic become 2.69 MPa, as the structure which formed in bioplastic was exfoliation which was strengthen from XRD pattern. Biodegradation test showed that bioplastic contained of 2 g bentonite has the fastest time to perfectly lose in the soil which only 12 days.
Development of chemistry e-module flip pages based on chemistry triplet representation and unity of sciences for online learning
Authors: Fibonacci Anita , Wahid Abdul , Lathifa Ulya , Zammi Muhammad , Wibowo Teguh , Kusuma Hamdan Hadi
Published: March 2021

The digital module can be used as a solution in online learning during the Covid-19 pandemic. The purpose of this study was to develop and evaluate a Chemistry e-Module Based On Chemistry Triplet Representation and Unity of Sciences. Research and development were conduct to developed this e-module. The steps were: (1) research and information collected; (2) planned; (3) developed a primary form of product; (4) preliminary field-tested; (5) main product revision; (6) main field-tested; (7) operational product revision; (8) operational field-tested; (9) final product revision; (10) dissemination and implementation. Pre-test post-test control group design was applied to see the effectiveness of e-Module on critical thinking skills. Data were collected using test and non-test methods. The research subjects were students of the Chemistry Education Department, UIN Walisongo. Chemists and multi media experts have done the validation to test the initial quality of the products and give a feedback for the product improvement. The results of the validation test from experts reviews obtained a mean score of 3.85 from a maximum score of 4, which indicated that the e-Module was in the Eligible category. The media expert’s assessment got a mean score of 4.0 from a maximum score of 5 which means that the e-module was in the Appropriate category in media aspects. The e-Module got a mean score of 3.64 from the highest score of 4, which means that the e-module developed was in the very feasible category according to students. T-test results showed that there were differences in N-gain score between control and experimental group. It has been proved to be significantly different (sign test from SPSS showed < 0,05), with the mean score of the experimental class being higher than the control class. The Control group achieved an N-gain score of 0.53 (moderate category) otherwise experimental group achieved 0.80 (high category) which was higher than the control group.
The ethnobotany of Zingibraceae as the traditional medicine ingredients utilized by Colo Muria mountain villagers, Central Java
Authors: Wahidah Baiq Farhatul , Hayati Nur , Khusna Umi Nihayatul , Ducha Rahmani Tara Puri , Khasanah Rizkiati , Kamal Irsyad , Husain Fadly , Setiawan Andri Imam
Published: March 2021

Zingiberaceae is one of the natural resources used as a natural medicine by Colo Muria mountain villagers in Dawe District, Kudus Regency, Central Java. However, there is no particular study focusing on the use of the Zingiberaceae family in that area. This research aims to identify some species of the Zingiberaceae family utilized as a traditional medicine Colo Muria mountain villagers in Central Java. The data collection method is conducted by a semi-structured interview method, field observation, and documentation. The data was analyzed qualitatively. The result shows that there were 14 species utilized as traditional medicine by the Colo Gunung Muria villagers: Bangle (Zingiber purpureum Roxb), Ginger (Zingiber officinale), Red Ginger (Alpinia purpurata k. Schum.), Cardamom (Elettaria cardamomum (l.) Maton), Kencur (Kaempferia galanga L.), Kunci (Kaempferia pandurata Roxb.), Turmeric (Curcuma domestica Val.), Bitter Ginger (Zingiber zerumbet), Lengkuas (Alpinia galanga (L.) Swartz), Parahulu (Amomum aculeatum Roxb.), Temu Lawak (Curcuma xanthorhiza Roxb.), Temu Giring (Curcuma heyneana Val.), Temu Hitam (Curcuma aeruginosa Roxb.), and Temu Putih (Curcuma zedoaria Berg.). The processing technique of the plants was in two ways: pounded and boiled. While the methods of use were by drinking (61%), rubbed (22%), direct consumption (9%), dripped (4%), and dicethik (squeezed and dripped 4%).
Analysis of UoS contextual chemical literacy ability of chemistry pre-service teacher on reaction rate topic
Authors: Nada E I , Sari W K
Published: March 2021

The chemical literacy ability is an essential ability that should be possessed by a pre-service teacher. This research aims to acknowledge the achievement of knowledge, context, competence, and attitude. This research was descriptive-qualitative research whose population consisted of the students of chemistry education. The subjects were 25 students who took a general chemistry class. The techniques of data collection were the interview and questionnaire. The research instrument was the assessment instrument based on chemical literacy and UoS. Based on the research conducted, it was known that the chemical literacy ability of pre-service teachers on the reaction rate topic, the aspect of knowledge found was 71,87%, the aspect of context was 70,25%, the aspect of competence was 73,67%, and the aspect of attitude was 71,53%. The results showed that chemistry pre-service teachers’ chemical literacy ability on the reaction rate was medium, with 71,83%.
Profile of students’ creative thinking in solving mathematics problems in terms of gender
Authors: Cahyono B , Rohman A Aunur , Fauzi M.
Published: March 2021

This study aims to describe the creative thinking process of students in solving math problems in terms of differences in gender. This study qualitatively examines the creative thinking process of sixth semester students of mathematics education at the Faculty of Science and Technology, UIN Walisongo. The data collection techniques used in this study were questionnaires, tests, interviews and completed with documentation. The data analysis techniques in this research are data reduction. The data analysis technique in this research is data reduction and data validity by using time triangulation, namely by looking for the suitability of interview data which originates from the problem of two similar questions. The results showed that gender differences did not significantly affect students’ creative thinking abilities. Male subjects need stimulation of questions from researchers to compile information correctly and precisely. Male and female subjects monitored the problem-solving process well, but both had not yet carried out an evaluation process.