bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimum Combination of Alphamangostin-Dihydroartemisinin in Vitro as Antimalaria
Authors: Tjahjani S , Syafruddin D , Tjokropranoto R
Published: February 2021

Drug discovery effort need to be done because of the malaria drug resistance evidence. Against the available ACTs, this resistance also started to develop. Alphamangostin has antimalarial activity and has synergistic effect with dihydroartemisinin. The aim of this study was to look for the optimum ratio of this combination as antimalaria with the lowest IC50 (the most active) and the smallest Sum of FIC50 (the most synergistic effect). Three kinds of stock solution of combination of alphamangostin with dihydroartemisinin were made consisting of: 1) a half of IC50 alphamangostin with a half of dihydroartemisinin, 2) Three quarter of IC50 alphamangostin with a quarter of dihydroartemisinin, 3) a quarter of IC50 alphamangostin with three quarter of dihydroartemisinin. 3D7 clone of Plasmodium falciparum cultivation was treated by each of those stock solutions in various dilution duplicately. Parasitaemia percentage was counted and analyzed by probit analysis to find out the IC50 and the sum of FIC50 of those combinations. It was shown that IC50 and the sum of FIC50 of the first, second, and third combination was 0.0011 microgram/ mL and 0.733; 0.00023 microgram / mL and 0.115; 0.00028 microgram / mL and 0.233 consecutively. It seemed that the second combination was the most ideal combination according its synergistic effect.
The Best Pasteurization Method in Reducing the Amount of Bacteria in Cow’s Milk on People Dairy Farm
Authors: Nawangsih E N , Rahmat I I , Halimah L S , Hidayat D N
Published: February 2021

One method to reduce the number of bacteria and kill pathogenic bacteria is pasteurization. The purpose of this study is to get the best pasteurization method to reduce the number of bacteria and meet the Indonesian national standard requirements. This research is a comparative study to compare the methods of HTST (High Temperature Short Time) and LTLT (Low Temperature Long Time) pasteurization using samples of cow’s milk from the people’s dairy farms in Sunten Jaya Village, Lembang. The results showed the average total colonies number of cow’s milk before pasteurization was1,19x104 CFU/m, post pasteurization using LTLT method was 8.8x102 CFU/ml, and HTST method was 3.2x102CFU/ml. There was a significant decrease in the number of bacteria after pasteurization, with a p-value of 0.027 after being analyzed by the Kruskal Wallis test (p-value < 0.05).In addition, there was a significant difference between the total colonies number of HTST and LTLT post-pasteurization after being analyzed by the Mann Whitney test, with p-values = 0.05 (p-value < 00.05). Thus the HTST method is the best method in reducing the number of bacterial colonies in cow’s milk from Sunten Jaya Village, Lembang.
Optimization Concentration Control Cell Coombs (CCC) for Validity Tests on Crossmatching Examination
Authors: Oktari A. , Handriani R. , Musbihah S. S.
Published: February 2021

Crossmatching is an examination that needs to be done before doing a blood transfusion to see whether the recipient’s blood is in accordance with the donor’s blood. Validity is done to find out the results obtained in all phases crossmatching tests correctly indicate compatible. Control Coombs Cell (CCC) is a control cell suspension made from group O Rh positive blood which is intentionally coated with an incomplete antibody. The aim is to determine the concentration and optimal time of CCC incubation so that it can be used for validity testing on crossmatching examination. The test used two-way ANOVA test showed significant results, there were differences in the degree of agglutination in variations in concentration and incubation time. The optimum results were not obtained at concentrations of 50 percents, 60 percents, 70 percents and the right incubation time of 15 minutes, 30 minutes, and 60 minutes. The results of agglutination were reduced at a concentration of 50 percents and an incubation time of 15 minutes, that coombs as controlling negative CCC test results and testing serum coombs. CCC as validating results so as not to cause false positive reactions or false negative results.
Test Of Analgesic And Antiinflamation Effect Of Ethanol 70% Extract Red Gedi Leaves (Abelmoschus manihot (L.) Medik.) From Palu On White Rat (Rattus novergicus)
Authors: Nur A , Tjiroso B
Published: February 2021

Test of analgesic and anti-inflammatory effect of ethanol extract 70% leaf Red Gedi (Abelmoschus manihot (L.) Medik) against male rat (Rattus norvegicus). The purpose of this study was to determine the general purpose of this study was to determine the analgesic and antiinflammatory effect of ethanol extract of 70% leaf Red gedi (Abelmoschus manihot (L.) Medik) Against male rats (Rattus novergicus). This research is an experimental research with approach of pre and post test control group design. The sample was divided into 5 groups, ie normal group, negative control, positive control, and group extract. In the extract group, 3 doses of different extracts were extract dose 150 mg/kg BW, 300 mg/kg BW, and 450 mg/kg BW. Determination of analgesic with Writhing test method induced with acetic acid 1% while anti-inflammatory with the formation of artificial edema with 1% caragen inducer. The analgesic and anti-inflammatory effect was obtained on ethanol extract of 70% leaf red gedi (Abelmoschus manihot (L.) Medik) at doses of 150 mg/kg BW, 300 mg/kg BW, and 450 mg/kg BW characterized by the number of stretching and inflammation On different legs with the control group. The result of statistical analysis using SPSS (Statistical Product and Service Solution) method showed that analgesic and anti-inflammatory effect was shown by ethanol extract 70% of leaf Red gedi (Abelmoschus manihot (L.) Medik). Doses of 150 mg/kg BW, 300 mg/kg BW, and 450 mg/kg BW were not significantly different from mefenamic acid and diclofenac sodium.
In Vitro Evaluation of The Inhibitory Power of Trichoderma harzianum Against Pathogens that Cause Anthracnose in Chili
Authors: Sutarman  , Miftahurrohmat A , Nurmalasari IR , Prihatinnigrum AE
Published: February 2021

This study aims to determine the inhibition of Trichoderma harzianum Tc-Jjr-02 isolates against two Colletotrichum isolates that cause anthracnose in chili in vitro. The first stage of the test was carried out by a double culture method on the agar dextrose-chloramphenicol medium with five replications. Inhibition of biocontrol agents was determined by comparing the difference between growth of pathogenic colonies in multiple cultures and monoculture with growth of monoculture pathogenic colonies measured every 24 hours for six days. At two weeks after the end of the Observation Test the second stage of research was carried out. Mycelium biocontrol agents that overlap with pathogenic mycelium isolates are sampled and observed under a microscope with 400 times magnification. In vitro test results showed that T. harzianum Tc-Jjr-02 isolates were able to inhibit the growth of C. capsici and C. gloeosporioides colonies with an average of 64.2 ± 3.54 and 65.0 ± 3.93%, respectively. On microscopic observations of overlapping mycelium it appears that T. harzianum Tc-Jjr-02 damages the C. capsici and C. gloeosporioides hyphae cell walls. T. harzianum has the potential to be an effective biocontrol agent against pathogens that cause chili anthracnose.
Isolation Bacteria Producing α-Amylase from Black Soldier Fly larvae (Hermetia illucens) L.
Authors: Muharram Luthfia Hastiani , Hernahadini Nelis , Fauzi Muhammad
Published: February 2021

Black Soldier Fly (Hermetia illucens) larvae used as a large-scale organic waste bioreduction agent with ability reduce organic waste up to 200 tons per day. The potency of BSF larvae to process organic waste was related to the function of phisiology, microbial and biochemical processes. The gut extracts had high amylase, lipase and protease activities. α-amylase is one of the important enzyme in development of biotechnology and belongs to the main enzyme class on the world enzyme market. α-amylase used to replace chemical hydrolysis process in starch processing industry. α-amylase from microorganism was more prospective than plant and animal amylase, because it was more easily manipulated to produces targetted enzymes, characteristics and more economical. The purpose of this study was to isolate bacteria producing α-amylase from BSF larvae. The research method was extracted of 200 BSF larvae in phosphate buffer pH 7.4. Homogenate was isolated in Lysogeny Broth (LB) by serial dilution and fourway strick. Each culture was screened based on the activity of α-amylase by Fuwa method. The results of isolation obtained 8 single colonies bacteria. The α-amylase activity assay for Fuwa method obtained the highest α-amylase activity unit was 10.86 units/ml, produced by the 8th colony.
The Use of Ethanol as an Alternative Solvent to Replace 2-Propanol in the Determination of Total Acid Number in Lubricant by Potentiometric Titration
Authors: Yuliani E , Permana W
Published: February 2021

In determining the quality of lubricant, acid content affects the quality of the lubricant. The acid content in the lubricant can be determined by using ASTM D664 Standard Method to determine Total Acid Number. The purposes of this research are to obtain the optimum ratio of a solvent mixture of Toluene and Ethanol to determine the Total Acid Number using the Potentiometric titration method and set the value of its accuracy and precision. This research aims to compare the value of the total acid number of the modified method to the standard method (ASTM D664). The modified method in this research uses toluene and ethanol, with ratios 70 percent: 30 percent. Kolmogorov Smirnov normality test shows that both methods produce normal data, and based on the t-test result, it is showed that both methods produce the results that are not significantly different. Based on the measurement of accuracy and precision, the method generates accurate and precise data. From the overall result, it can be concluded that the solvent mixture of Toluene and Ethanol with ratios 70 percent: 30 percent, can be used as an alternative solvent mixture to replace the solvent mixture in ASTM D664 Standard Method.
The Proportion of Moringa and Cassava Leaves on the Chemical and Sensory Properties of Chicken Nuggets
Authors: Prayitno S A , Rahim A R
Published: February 2021

Several types of chicken meat products that have high protein content. Chicken meat can be used as a processed nugget product which is a healthy food product, for example with the addition of natural ingredients derived from moringa leaves and cassava which have good nutritional content for humans. From the proximate analysis of Moringa and cassava leaves are rich in nutrients that are good for humans. The purpose of this study was to determine and identify the chemical parameters of chicken nugget products enriched by Moringa (Moringa poleifera) and cassava leaves (Manihot utilissima). By using sensory evaluation methods and effectiveness tests. Then the chemical parameters by conducting laboratory analysis. From the results of the study, the best sensory evaluation of the nugget product is the proportion of cassava and Moringa leaves by 50: 50%, with a yield value of 0.68. Chemical analysis shows that the best treatment is also in the ratio of 50: 50%. Chemical parameters such as protein 10.16%, Vitamin C 181.80 mg, Calcium 112.30 mg, crude fiber 9.40%. The addition of moringa and cassava leaves affects chemical parameters (protein, crude fiber, calcium) in chicken nuggets.
On the numerical solution of Burgers-Fisher equation by the Strang Splitting Method
Authors: Hamzah D. A. , Aprianto M. C.
Published: February 2021

In this paper, we apply the Strang splitting method to approximate the solution of Burgers-Fisher equation. This method offers a second-order accurate approximation to evolution equation by combining two non-commuting operators. This accuracy is achieved through a symmetric decomposition in which one operator is applied twice for half timesteps, and the other operator is applied once for a full timestep. The stability criteria is derived using the invariant region. The numerical results obtained are compared with the exact solution. The numerical error shows that the exact and the numerical solution are agrees with each other with a good accuracy.
The comparison of accuracy between naïve bayes clasifier and c4.5 algorithm in classifying toddler nutrition status based on anthropometry index
Authors: Ridwan A , Sari T N
Published: February 2021

Body Mass Index (BMI), one of which is used to indicate the category of nutrition al status of children under five whether it is proportional or not. Anthropometry has an important role to play in determining the nutritional status of Toddler. The Anthropometric guidelines for determining the nutritional status of Toddler are the parameters chosen which include an assessment of height, age, and weight. On the other hand this ever-increasing amount of data requires several methods to process and draw conclusions and information from these data. Some methods used to process large data to find patterns contained therein are simple, including the Naïve Bayes Clasifier Algorithm and C4.5 Algorithm. Both are methods in the classification of Data Mining Techniques. The Naïve Bayes Clasifier Algorithm and C4.5 Algorithm are included in the Ten Most Popular Data Mining Classifications. This Research will apply the Naïve Bayes Clasifier Algorithm and C4.5 Algorithm which is used for the classification of Toddler Nutrition Status based on the Anthropometry Index so as to produce the accuracy of both algorithms. While the five classes will be classified as thin, very thin, normal, fat, very fat. The results of this classification process show that the C4.5 algorithm has an accuracy rate of 0.93% better than the Naïve Bayes Clasifier Algorithm. The algorithm that has been formed can then be developed and implemented into an application making it easier for stakeholders to make a decision for the Classification of Toddler Nutrition Status based on the Anthropometric Index
On The Locating Rainbow Connection Number of A Graph
Authors: Bustan Ariestha Widyastuty , Salman A.N.M. , Putri Pritta Etriana
Published: February 2021

Letkbe a positive integer andG= (V(G),E(G)) be a finite and connected graph. A rainbow vertexk-coloring ofGis a functionc:V(G) → {1,2,…,k} such that for every two verticesuandvinV(G) there exists au-vpath whose internal vertices have distinct colors. Such path is called a rainbow vertex path. The rainbow vertex connection number ofG, denoted byrvc(G). is the smallest positive integerkso thatGhas a rainbow vertexk-coloring. The distance between two difference verticesuandvinV(G), denoted byd(u,v), is the length of a shortestu-vpath inG. Fori∈ {1,2,…,k], letRibe the set of vertices with coloriand Π - {R1,R2,…,Rk} be fjn ordered partition ofV(G). The rainbow code of a vertexvofV(G) with respect to Π is defined as thek-tuplerc∏(v)=(d(v,R1),d(v,R2),…,d(v,Rk)),, whered(v,Ri) =min{d(v, y) |y∈Ri} for eachi∈ {1,2,…,k}. If every vertex ofGhas distinct rainbow codes, thencis called a locating rainbowk-coloring ofG. The locating rainbow connection number ofG. denoted byrvcl(G). is defined as the smallest positive integerksuch thatGhas a locating rainbowk-coloring. In this paper, we provide the sharp upper and lower bounds for locating rainbow connection number of a graph. We also determine the locating rainbow connection number of some well-known classes of graphs.
Identification Growth Quality of Red Onion during Planting Period using Support Vector Machine
Authors: Lestari N A P , Dijaya R , Azizah N L
Published: February 2021

Shallot (Allium ascalonicum L) is a type of horticultural crop which is one of the leading vegetable commodities that is widely cultivated by farmers in Indonesia. Identification of the quality of growth of onions can be known from the size, colour and texture. This study focuses on identify the quality of the growth of shallots using Support Vector Machine (SVM) classifier. The data used in this study are 100 images of 48-day-old Bauji variety onions divided into two classes, good quality onions and poor quality onions. The pre-processing produce higher quality images based on edge detection, dilation, erosion and colour channel changes for feature extraction. Feature extraction based on HSI colour and GLCM texture to identify the quality of the onion Furthermore value of the feature extraction will be input calculation from the SVM classifier. The experiment shows that the best result can be using combination HSI and GLCM features with accuracy 82%.
Usage Behavior on Digital Wallet: Perspective of the Theory of Unification of Acceptance and Use of Technology Models
Authors: Sukaris Sukaris , Renedi Wiki , Rizqi Maulidyah Amalina , Pristyadi Budiyono
Published: February 2021

At present the phenomena what is happening is on the use of financial technology in particular with regard to digital payments. In recent years a new technological innovation has emerged called financial technology. Financial technology is a combination of financial services and technology, where this technology has changed the behavior of the community, which was originally made by face to face payment transactions and carry a nominal amount of money, but now can be processed quickly without being limited by distance. This paper aims to examine the behavior of using a digital wallet based application: the perspective of the unified theory of acceptance and use of technology perspective. The current research design is based on survey data collected from 200 respondents from all generations who have used a digital wallet based application. The data analysis procedure uses structural equation modeling with PLS. The research findings show that performance expectancy, social influence, facilitating condition, hedonic motivation and trust influence behavioral intention of digital wallets and effort expectancy does not affect the behavioral intention of a digital wallet. While behavioral intention has a positive effect on the use of behavior of digital wallets. This paper tries to shed new light on the use of application-based digital wallets for all generations. In addition, this model needs to be extended to the external factors of the user and consider the location of each user, in the context of this study the use of an application-based digital wallet is more often used for culinary shopping
PPDB Online As Innovation of Education Services
Authors: Mursyidah Lailul , Rodiyah Isnaini , Ramadhan Hafidz A’inur
Published: February 2021

Education is the most important aspect of the process of empowering and developing the quality of the State. Innovations in education services must be made to keep up with technological developments and the demands of society. One of the innovations in education services is PPDB Online. PPDB online is an electronic-based service system used in the process of admitting new students in high school. This paper explains the application of PPDB Online as an educational service innovation in East Java Provincial Education Office, Surabaya Branch. The application of PPDB Online in East Java Provincial Education Office, Surabaya Branch, as innovation in education service defined through the five e-service dimensions there is ease of use, e-scape, customization, responsiveness, and assurance. Ease of use means that the application of PPDB online makes it easy to register online. E-scape means that the application design created by East Java Provincial Education Office, Surabaya Branch provides comfort and convenience for PPDB users online. Customization means that the application makes it easy for users to convey constraints regarding PPDB online. Responsiveness means that the consumer inquiries and requests can be responded to quickly. Assurance means the data of the user is safe because to access the user must register and have a password to access PPDB online.
The Development of Teaching Material For Popular Writing Based On Creative Industry Using M-Learning For College Students of Faculty of Language and Literature
Authors: Ansoriyah Siti
Published: February 2021

The objective of the research is to produce proper teaching material for popular writing subject based on creative industry using M-learning for college students of faculty of language and literature in FBS UNJ. This research applies research and development method by Borg and Gall which consists of introduction, model development, and evaluation. This research reveals that (1) Popular writing subject which based on creative industry using M-4learning is applied with text based learning approach, (2) the text used are: books review, opinion, features, and commercials, (3) field test in both small and large scale shows that there is a significant differences between average pre-test score and average post-test score achieved by the students. Therefore, creative industry based teaching material using M-learning with text based learning approach is feasible and effective in improving students’ capability in popular writing in PBSI FBS UNJ.
Estimation of Biresponse Multipredictor Model using Local Linear Estimator in Case of Scholastic Aptitude and Islamic Tests Modeling
Authors: Nidhomuddin  , Chamidah N , Kurniawan A
Published: February 2021

Scholastic aptitude test (SAT) and Islamic test are tests that used by state Islamic colleges (SIC) in Indonesia to select new students on the admission test. Both of them are taken from the same subjects, so they are correlated each other. The behavior patterns of both test scores are change because they were observed from 2016 to 2018. In that period, SAT and Islamic test scores of SIC in western Indonesia are higher than those in eastern Indonesia. So the locally modeling is appropriate for this case. There is a significant correlation between both of the tests then they can be modeled simultaneously by using biresponse nonparametric model. In this research, estimating parameter of biresponse multipredictor nonparametric regression model by using weighted least square method. The results show that in average, the increasing public senior high schools percentage and first choice percentage would increase the SAT scores and Islamic test scores of SIC in western Indonesia. Otherwise, in eastern Indonesia the increasing public senior high school percentage and first choice percentage would decrease the SAT scores and Islamic test scores. It means that there are different patterns of SAT and Islamic test scores between western Indonesia and eastern Indonesia.
Modelling Scholastic Aptitude Test of State Islamic Colleges in Indonesia using Least Square Spline Estimator in Longitudinal Semiparametric Regression
Authors: Setyawati M , Chamidah N , Kurniawan A
Published: February 2021

Scholastic aptitude test is one of tests used to select student candidates who want to enroll to the state Islamic colleges (SIC) in Indonesia. This test is affected by some factors for instances percentage of student candidates who pass to enroll in that enrolment year (t), and place of these colleges (SIC) where the student candidates enroll (X). Association between t and scholastic aptitude test score (Y) have no certain pattern (as nonparametric component). One of estimator in nonparametric regression is least square spline that include knots which can accommodate locally properties and give good flexibility. Place of SIC is dummy variable, so we can use parametric regression approach. To investigate Y from year to year we can use longitudinal data. Therefore, in this research model Y affected by t (as nonparametric component) and X (as parametric component) use longitudinal semiparametric regression based on least square spline estimator. The results give an estimated order one semiparametric regression model of scholastic aptitude test scores with three knots of 70.64; 80.32, and 90.67, and minimum generalized cross validation value of 204.42. Also, the results show that average of Y in western Indonesia is greater than in eastern Indonesia with difference of 20.45.
Introduction of traditional lebak musical instruments through aplikasi android for early childhood
Authors: Setiawati Eka , Karyaningsih Dentik , Ruiyat SuciAprilyati , Sutiawan Hadi , Sampurna Iman , Susilawati Eneng Sri
Published: February 2021

Traditional musical instruments are cultural heritage that must be preserved. This is done so that the existence of this instrument is not extinct and can continue to be known until the next generation. Lebak is one area that has several diverse traditional musical instruments, traditional musical instruments such as lojor dogs, angklungbuhun, and lisung which play various ways and produce different sounds. The introduction of musical instruments early is needed to preserve culture in childhood requires methods and ways for the introduction of this instrument can be done with fun. One method that can be used is to present the knowledge of this musical instrument by utilizing animation media based on Android applications. This application not only presents the visual form of musical instruments, but also displays the sounds of each ethnic musical instrument. The purpose of this research is to increase children’s knowledge about traditional musical instruments. This research produces an Android-based application animation media that will present information about a typical Lebak musical instrument that is presented to be understood by early childhood. So that their understanding of traditional musical instruments increased.
Development of Vocational Learning Video Based on Local account in PKN Learning in Elementary School
Authors: Adiputra Dede Kurnia , Karyaningsih Dentik , Ruiyat Suci Aprilyati , Heryadi Yadi , Sampurna Iman , Solihatulmillah Elih
Published: February 2021

Civics is one of the subjects in primary schools that include or incorporate character values in their learning activities so that it is felt appropriate to be made as research material that is related to local wisdom. However, Civics learning that has been taught so far does not provide strong character to students because of the lack of innovation in learning and is too textual, so it tends to be boring for students. In addition, teachers in the class lack linking local wisdom that is happening in the community so that students are less able to solve problems such as cooperation / mutual cooperation, morals, respect for shared decisions, delinquency that occurs. The learning applied by the teacher also seems to be lacking integration, both with other subjects and the selection of models and learning strategies. One effort to overcome these problems is to develop learning media in accordance with the demands and needs of learning activities. This research is a development study whose purpose is to develop learning videos with material respecting shared decisions. The advantages of this research are shown in the video that contains or accentuates the forms of local wisdom in the Lebak Regency, Banten Province. The purpose of this study was to find out: (1) how to develop media models and character education for students in Civics; (2) the effectiveness of instructional videos as an alternative model of instructional media and the development of student character education in Civics subjects; and (3) learning outcomes and character education of students after using the product of the development of learning videos on Civics subjects. The research method used is the research and development of the Borg and Gall model. The assessment results show that (1) expert assessment of subject matter is in the very good category with a mean score of 3.85; (2) learning media expert evaluation in the excellent category with a mean score of 3.80; (3) small group trials are in the very good category with an average score of 3.83; and (4) field trials are in the very good category with an average score of 3.84. The results showed that by using a Civics quartet card, Civics learning activities could take place actively, creatively, and fun, able to improve student learning outcomes with an average value of 79.72, and proven effective can develop the values of character education of students.
Comic Strip Project in the M-Comic Application for Mandarin Vocabulary Learning
Authors: Jureynolds  , Rosalin K , Ying Y
Published: February 2021

How to arrange sentences and reading texts often come from textbooks. The example sentences and text provided only display the meaning and position in the sentence. The procedures for using it grammatically in sentences are often unclear. The context of the conversation used as an example sentence often does not relate directly to the daily lives of students. So that students have difficulty in composing sentences with the vocabulary learned. This study aims to overcome difficulties in learning Mandarin vocabulary through the comic strip project in the M-Comic application. Through a survey method of 48 students, first-year Chinese literature, there are three difficulties for students in learning vocabulary, namely, the meaning of words, how to use, and the context of use in conversation. Therefore, the author sparked the idea of M-Comic as a new learning media. M-Comic requires a story update in each period. The author involved 24 students who were divided into 8 groups to create comic content following the instructor’s direction. The survey results show students can apply learning by doing, by collaborating with fellow group members, together creating their conversation context that is closely related to daily life, to help mastering Mandarin vocabulary in more exciting way.
Critical Multiliteration: An Alternative Learning Model for Developing Metacognition Skills in Elementary School Students
Authors: Hendriani A , Tri Herlambang Y , Rohayati E , Ernalis  , Setiawan D
Published: February 2021

The purpose of this study is to explain how the metacognition thinking skills of 5th grade elementary school students use a critical multiliteration learning model. This research is an experimental study using a Non equivalent pretest posttest control groups design. The critical multiliteration learning model is applied to the experimental group and the traditional model is applied to the control group. The two groups were chosen not randomly but were chosen based on certain considerations. The number of samples in this study were 220 students with different academic abilities (low, medium, high). Pretest and posttest data were collected using essay questions. The data analysis of this study used the normality test, homogeneity test, and t test / mann-whitney test. The results show that there are interesting findings that the critical multiliteration learning model can significantly develop metacognitive thinking skills of elementary school students compared to traditional models. The results of this study contribute to the field of curriculum design and educational practitioners to improve the gap in the quality of education and enhance students’ metacognitive thinking skills effectively.
Needs Analysis of Web-Based Performance Asessment of Network Administration Learning to Improve HOTS Competence
Authors: Ambiyar  , Efendi Raimon , Waskito  , Afifa Nur Zamalia , Wulandari Ratih Agustin
Published: February 2021

This study aims to describe the results of the needs analysis in the process of developing performance appraisal models in learning network administration in the faculty of computer science. This research is a qualitative descriptive study using survey methods to identify the needs of students and teachers in learning assessment. In this study, the analysis of needs is related to the achievement of student learning outcomes and increased ability of High Order Thinking Skills (HOTS), problems faced by students and the media needed by students in the learning assessment process. This study uses a questionnaire given to students who take the Network Administration course #. The results showed that: 1) the lack of learning assessment media that could be used as independent assessments for students; 2) interactive web-based assessment media needed on network administration subjects; 3) high expectations for improving HOTS competence by developing performance appraisal models. Based on these findings, it can be concluded that students and teachers need the development of a performance appraisal model that is interactive appraisal media that can be used as an independent appraisal medium and can improve students HOTS competencies. In addition, these findings will be used in designing performance assessments for courses that have the same characteristics in the Faculty of Computer Science.
An Analysis of Teacher Candidates Scientific Literacy through Nature of Science (NoS) in Inquiry-Based Learning
Authors: Wulandari F , Setiyawati E , Su’udiyah F
Published: February 2021

The purpose of this study is to determine the scientific literacy of teacher candidates through Nature of Science (NoS) in Inquiry-Based Learning. This research uses descriptive research method with quantitative approach. The subjects in this study were 24 students in the A4 class of Teacher Candidate study program. The researchers used the scientific literacy test, observation, and documentation instruments to analyze students’ scientific literacy. The indicators of scientific literacy that are used refer to the scientific literacy according to PISA. The results showed the achievement of scientific literacy of students with a high category of 62.5%, with a moderate category of 25%, and a low category of 12.5%. Meanwhile, the achievement of each indicator in each aspect of scientific literacy shows that student literacy related to the achievement of the scientific context aspect is 84.83%, the aspect of science knowledge is 86.32%, and the aspect of science competence is 81.99%. The mean percentage of students achieving scientific literacy from all aspects is 84.38% with a high category. Thus, it can be concluded that lectures through Nature of Science (NoS) in Inquiry-Based Learning can be used to improve students’ scientific literacy.
Need Analysis for Development of Web-Based Flipped Classroom Learning Models in Vocational Education
Authors: Ambiyar  , Efendi Raimon , Waskito  , Rojiyyah Iffah , Wulandari Ratih Agustin
Published: February 2021

This study aims to determine the potential and needs of lecturers and students in studying computer network security which will be used as a basis for developing a web-based inverted classroom model in vocational education. This research is also based on 21st century learning competencies needed in the digital age such as critical thinking, communication, collaboration and creativity. This research needs analysis consists of field observations and literature studies. This research is a type of descriptive research. The results of this study indicate that lecturers and students need a learning environment that integrates technology in learning so as to enable students to communicate and get information from various sources. Based on the needs analysis conducted, learning innovation is needed in the form of developing web-based flipped classroom models that are expected to create learning competencies that are more effective, efficient, interesting, and able to improve learning competencies and learning abilities of 21st Century students.
Error analysis and its causal factors in solving mathematical literacy problems in terms of habits of mind
Authors: Ratnaningsih N , Hidayat E
Published: February 2021

Errors and factors causing mistakes in solving mathematical problems are important to be analyzed. This study aims to investigate the abilities, mistakes and factors that cause students to do mistake in solving mathematical literacy problems in terms of habits of mind. The study was conducted in junior high schools in Indonesia using a descriptive exploratory method. The participants are 3 students who have habits of mind limited, developing, and professional. Data were collected using mathematical literacy test and habits of mind questionnaire. All instruments used were tested for eligibility by two mathematics education experts. The conclusion shows that students who have habits of mind limited wrong in process skills that are wrong in interpreting and using different representations and expressing reasons, as well as communicating the results of interpretation and reason. While students who have habits of mind developing and proficient wrong in understanding that is wrong in combining different representations, symbols, connecting them to real situations, using a variety of limited skills and expressing various reasons, giving explanations and communicating with arguments. The factors causing errors are hesitation, inaccuracy, not doing calculations, unable to understand the information in the problem correctly, in a hurry in interpreting the problem without interpreting.
The Role of the Mandamonic Games in Supporting Mandarin Learning at Elementry School
Authors: Ying Yi , Susilo PM , Mei FR , Rahardjanti T
Published: February 2021

Foreign language education has begun to combine conventional education with mobile learning or “M-Learning”. M-Learning offers a modern way to support the learning process through mobile devices, such as handheld computers and tablets, MP3 players, smart phones and cellphones. This study explains Chinese learning through smart phones among elementary school students. Students’ interest in playing games, especially on smart phones, is the background of researchers designing Chinese learning applications by emphasizing game based learning. Before designing a smart phone game, researchers first conducted a survey of 129 elementary school students in grades 1-6 in two private primary schools in Jakarta about the use of smart phones and student interest in playing educational games. From the survey the researchers designed a game application called “Mandamonik”. This application consists of three types of games, namely memory games, puzzle games and word shoot games. The author asks 33 students to play the game. From student feedback, 85% of students consider Chinese learning, especially vocabulary mastery, can be fulfilled with the Chinese Character game.
Mathematical creative thinking process of the students: an analysis of Wallas stages and personality types
Authors: Ratnaningsih N
Published: February 2021

The process of creative thinking and personality types are two important things that must be considered but often overlooked. The purpose of this study to the investigated mathematical creative thinking process seen the stages of Wallas and personality types of Keirsey. This research is in junior high school in Indonesia with survey research methods. Participants 4 students with the guardian, artisan, rational, and idealist personality types. Data were collected with the Myers-Briggs Type Indicator (MBTI) tests, mathematical creative thinking tests, and interviews. The conclusion shows that mathematical creative thinking process of guardian and artisan type: the preparation stage tends to long to understand the problem and in the illumination, a phase is more focused on the ways that have been taught by teachers and less able to develop an idea. While the process of mathematical creative thinking rational type: the preparation phase tends to be faster in understanding the problem, the illumination stage can find ideas and build an idea to develop ideas and ideas unusually. The creative thinking process of idealistic type: in the preparation stage tends to be quick in understanding the problem, the illumination stage is more attached to the ways that teachers have taught.
Creative Play and Learning in Natural Environment to Develop Creative-Ecoliteracy in Elementary School Students
Authors: Maulidah Neni , Sunanih  , Rahman  , Supriatna Nana
Published: February 2021

Creativity and Sustainability Education (Education for Sustainability Development) are two global agendas in 21st century learning. This underlies the birth of various pedagogical ideas that are relevant for teaching creativity and eco-literacy. Humans are creatures who love to play (homo ludens) and will always desire to be affiliated with nature (biophilia). Therefore, this article aims to describe how creative play and learning in the natural environment are used to develop creative-eco-literacy in elementary school students. This article presents an overview of Participatory Action Research (PAR) studies in social studies teaching. Kemmis, McTaggart, and Nixon (2014) defined PAR as a study, which creates learning innovation through planning, action, observation, and reflection. The teacher makes learning plans by preparing various creative games performed in the natural environment such as playing on grass, identifying colors, shapes, textures of plants and animal, natural sounds, describing, asking, telling about animals, running, digging, and solving environmental problems such as through gardening activities. The teacher does not forget to make the relevance of these activities with the curriculum that applies in the school thematically. Learning activities are then observed and reflected by the teacher to see their effectiveness and impact on students creative-eco-literacy development. The results showed that creative play activities and learning in the natural environment can be used to develop adaptive, aesthetic, cognitive, communication as a language function, sensorimotor, and socio emotional attitudes in students.
Classification of Student’s Mathematical Reflective Thinking in Calculus Class
Authors: Ariany R L , Widiastuti T T , Jauhari A L R , Fardillah F
Published: February 2021

Reflective thinking is an important ability that supports professional skills, the teacher is a professional position so that reflective thinking is important to be owned by prospective teacher. This study aims to identify the reflective thinking skills of prospective mathematics teachers. The research conducted is a descriptive study with a survey model. Data collection techniques used by the mathematical reflective thinking test. The study involved 30 prospective mathematics teachers. The results showed that more than half of students did not reach the reflection stage, only a small proportion of students had done critical thinking. The development of reflective learning is needed, so that reflective thinking can be developed effectively in learning.
Increasing Independence of Cerebral Palsy Children using Virtual Reality based on Mlearning
Authors: Hasanudin Muhaimin , Arribathi Abdul Hamid , Indrianto  , Yuliana Khozin , Kristiadi Dedy Prasetya
Published: February 2021

This research is a classroom action research that aims to determine the impact of using Virtual Reality (VR) Technology by measuring the level of courage of celebral palsy (CP) students after using Android-based VR on the dreaded object by comparing pre-action and past action behavior in Dilaraf Islamic School Tangerang – Banten. The study was conducted in three cycles with 12 students CP, Data analysis uses descriptive quantitative data analysis. The results showed the average results of motor sensor tests of students in pre cycle I of 4 graduated students increased by 7 out of 12 students. 91.67% of students have reached the Minimum Completeness Criteria (MCC) in the third cycle. This shows the indicator set is that 60% of students reach the MCC has been achieved. Thus the VR technology learning method can improve the motor sensor skills of cp students.
Service Provider Information System in Technopreneurship Learning for MSMEs
Authors: Hasanudin Muhaimin , Yuliana Khozin , Roihan Ahmad , Arribathi Abdul Hamid , Haris
Published: February 2021

This study aims to involve students in Technopreneurship courses by utilizing the emarketplace as a marketing, sales and service medium for Micro, Small and Medium Enterprises (MSMEs). Where previously the lecture material was given in class in theory, amended by giving field practice assignments in collaboration with material entrepreneurs and building service providers as MSMEs in the City of Tangerang. Based on the results of research that the application of information technology, especially e-marketplaces in learning Technopreneurship has a real impact on the ability and level of understanding of students about Technopreneurship courses, students gain experience and insight about Technopreneurship, can design and test prototypes of service provider information systems (SijasPro) eMarketplace, students directly involved in helping solve the problems of business people, especially in the field of promotion and sales to customers. siJaspro is able to produce promotional media that can be used directly by business people. students are expected to have insight to foster entrepreneurial spirit among students, this is one of the new breakthrough strategies to anticipate the problem of increasing intellectual unemployment.
Mathematical Design Study of Drainage And Dewatering Strategies: Integrated System For Water Management in Open-Pit Mining
Authors: Rosarina D. , Fardillah F. , Wibowo Y. G.
Published: February 2021

Coal mining activity impacted environmental issues especially wastewater. This paper will explain about mathematical modelling of water management system using combination of drainage and dewatering system to solve this problem. Drainage and dewatering system must be balance to manage water in mining area, drainage and dewatering system model written clearly in this paper including perimeter drainage, sump, pipping and pumping system.
Analysis of Students Mathematics Reasoning Ability in View of Mathematical Problem Solving Ability
Authors: Setialesmana Depi , Sunendar Aep , Katresna Lutfi
Published: February 2021

The purpose of this study is to analyze students ‘mathematical problem solving abilities based on Gagne’s solving steps and analyze students’ mathematical reasoning abilities in terms of mathematical problem solving abilities, this study is a qualitative study, data collection used is the provision of tests and interviews, research instruments used is a matter of mathematical reasoning ability tests and mathematical problem solving abilities, the subjects used were 30 students of class X MIPA 1 of SMAN 3 Tasikmalaya for tests of mathematical problem solving abilities and 5 of them for mathematical reasoning ability tests and interviews based on purposive sampling techniques By using the analysis of Miles and Huberman’s model data, the results are obtained that (1) Mathematical problem-solving abilities of students who are able to fulfill the steps of understanding the problem are students with who can solve two indices Ator reasoning ability, students who are able to meet the steps to understand the problem and state the problem in an operational form are students who can meet 3 indicators of reasoning ability, students who meet the steps to formulate a hypothesis are students who can complete 4 indicators of reasoning ability, participants students who are able to meet the hypothesis testing steps are students who can complete 5 indicators of reasoning ability, students who are able to fulfill all the steps of problem solving are students who can complete all indicators of reasoning ability. (2) SP-08 is able to complete 5 indicators of reasoning ability, SP-09 is able to complete all indicators of reasoning ability, SP-19 is able to meet 4 indicators of reasoning ability, SP-31 is able to meet 2 indicators and SP-34 meets 3 indicators of mathematical reasoning ability.