Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia最新文献
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287203
F. Firman, Yenikarneli Yenikarneli, R. Hariko
Violent acts among teenagers in senior high schools continue to increase along with the lack of emphasis on reducing the intensity of these acts by the schools’ counseling service. This research aims to describe the violence acts prevention through counseling service by using a problem-solving approach to improve the students’ selfcontrol. This study is a quantitative research with an experimental design. The population consisted of Senior High School (SHS) students in Padang, Indonesia, and the sampling technique was cluster random sampling. Data collection was performed through the use of Firman and Yennikarneli's questionnaire (2017) which validity and reliability have been approved. Data analysis was performed through a descriptive method and the Wilcoxon Signed Rank Test. Based on the results of the analysis, it was found that violent acts prevention through counseling service by using a problem-solving approach is effective in improving high school students' self-control.
{"title":"School Violence Prevention Through Counseling Service Using Problem-Solving Approach to Improve Students’ Self Control","authors":"F. Firman, Yenikarneli Yenikarneli, R. Hariko","doi":"10.4108/eai.18-10-2018.2287203","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287203","url":null,"abstract":"Violent acts among teenagers in senior high schools continue to increase along with the lack of emphasis on reducing the intensity of these acts by the schools’ counseling service. This research aims to describe the violence acts prevention through counseling service by using a problem-solving approach to improve the students’ selfcontrol. This study is a quantitative research with an experimental design. The population consisted of Senior High School (SHS) students in Padang, Indonesia, and the sampling technique was cluster random sampling. Data collection was performed through the use of Firman and Yennikarneli's questionnaire (2017) which validity and reliability have been approved. Data analysis was performed through a descriptive method and the Wilcoxon Signed Rank Test. Based on the results of the analysis, it was found that violent acts prevention through counseling service by using a problem-solving approach is effective in improving high school students' self-control.","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115141457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287335
Jasmidi Jasmidi, M. Zubir, Sri Adelila Sari, A. Kembaren, H. Nasution, A. Pulungan
{"title":"Preparation of Sarulla Natural Zeolite as an Adsorbent to Pb(II) and Cd(II) Removal in Aqueous Solution","authors":"Jasmidi Jasmidi, M. Zubir, Sri Adelila Sari, A. Kembaren, H. Nasution, A. Pulungan","doi":"10.4108/eai.18-10-2018.2287335","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287335","url":null,"abstract":"","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"688 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122703386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287370
Mukti Hamjah Harahap, Hilda Br S Milala, I. Irfandi, W. Ritonga
This study aims to determine the effect of variations in composition and size of red sand grains on the quality of concrete. Concrete is made in the form of cubes 15 x 15 x 15 cm with the standard SNI K-175 with a composition of 1: 2: 3 cement mixture with FAS 0.5. In this study, variations in the composition of red sand (fine aggregate) were made by 0%, 5%, 10%, 15%, 20% of the weight of the fine aggregate used and the variation of red sand grain size of 80 mesh, 100 mesh, 120 mesh. After the concrete is 24 hours old, the mold is opened and given the code number as desired and treated in a water bath. After going through the immersion period 28 days later the pressure strength was tested and the XRD test. From the results of the study obtained the mechanical properties of the maximum concrete pressure strength test at a composition of 5% along with a decrease in the size of the red sand grain size (80 mesh, 100 mesh, 120 mesh) with pressure forces of 31.9 MPa, 35.4 MPa, and 35.5 MPa, respectively. This goes beyond the force of pressure set by the Indonesian National Standard Agency. XRD testing on concrete after smoothing, from the results of the XRD test obtained elements such as SiO2, Ca (OH) 2, CaO and Ta2O5 show that the graph shows a high silicon intensity value. Addition of red sand fine aggregate has an impact on improving the quality of concrete (the strength of pressure from SNI k-175 becomes K-400).
本研究旨在确定红砂粒的组成和大小的变化对混凝土质量的影响。混凝土以15 x 15 x 15 cm的立方体形式制成，采用标准SNI K-175，组成为1:2:3的水泥混合物，FAS 0.5。本研究采用细骨料重量的0%、5%、10%、15%、20%对红砂(细骨料)的组成进行变化，红砂粒度分别为80目、100目、120目。在混凝土放置24小时后，打开模具并按要求给出代码号，然后在水浴中处理。浸泡28天后进行耐压强度测试和XRD测试。根据研究结果，得出了在掺量为5%时，随着红砂粒径(80目、100目、120目)的减小，在压力分别为31.9 MPa、35.4 MPa、35.5 MPa时，混凝土最大抗压强度试验的力学性能。这超出了印尼国家标准局施加的压力。对光滑后的混凝土进行XRD测试，从XRD测试结果中得到SiO2、Ca (OH) 2、CaO和Ta2O5等元素，图中显示出较高的硅强度值。红砂细骨料的加入对混凝土质量的提高有影响(SNI k-175的抗压强度变为K-400)。
{"title":"Effect of Composition Variation and Size of Red Sand Grain to Concrete Quality","authors":"Mukti Hamjah Harahap, Hilda Br S Milala, I. Irfandi, W. Ritonga","doi":"10.4108/eai.18-10-2018.2287370","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287370","url":null,"abstract":"This study aims to determine the effect of variations in composition and size of red sand grains on the quality of concrete. Concrete is made in the form of cubes 15 x 15 x 15 cm with the standard SNI K-175 with a composition of 1: 2: 3 cement mixture with FAS 0.5. In this study, variations in the composition of red sand (fine aggregate) were made by 0%, 5%, 10%, 15%, 20% of the weight of the fine aggregate used and the variation of red sand grain size of 80 mesh, 100 mesh, 120 mesh. After the concrete is 24 hours old, the mold is opened and given the code number as desired and treated in a water bath. After going through the immersion period 28 days later the pressure strength was tested and the XRD test. From the results of the study obtained the mechanical properties of the maximum concrete pressure strength test at a composition of 5% along with a decrease in the size of the red sand grain size (80 mesh, 100 mesh, 120 mesh) with pressure forces of 31.9 MPa, 35.4 MPa, and 35.5 MPa, respectively. This goes beyond the force of pressure set by the Indonesian National Standard Agency. XRD testing on concrete after smoothing, from the results of the XRD test obtained elements such as SiO2, Ca (OH) 2, CaO and Ta2O5 show that the graph shows a high silicon intensity value. Addition of red sand fine aggregate has an impact on improving the quality of concrete (the strength of pressure from SNI k-175 becomes K-400).","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126466322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287403
Agus Junaidi, R. Salman, R. Rahmaniar, K. Abd., N. Jalinus, G. Ganefri
The paper present the dynamic oscillation of the electric power system. The concept of system resilience that functions for machines that move normally and can return to a stable state after a disturbance occurs. Oscillation of changes in speed and oscillation changes in the electric power system occur due to disturbances. Disturbance in electricity causes an electric current that works on the system beyond the nominal current. The effect of the current disturbance will have an impact on changes in the current torque parameters that cause prime-over instability when the generator is operating. This instability will affect the rotor speed and the voltage emitted by the generator. Dynamic oscillation repair testing by applying phase compensation control and PID-Controller on the excitation system is done to see the response of speed and voltage response when the system is experiencing interference. Observation of system oscillation response using matlab simulation to see system performance. The simulation results show that dynamic stability improvement with phase compensation method can reduce oscillation speed and voltage within 6 seconds and the use of PID-controller can reduce the speed and voltage in 3 seconds. The phase compensation method and PIDcontroller applied to the excitation system can reduce the electric power system oscillation.
{"title":"The Simulation Damping of Power System Oscillation using Phase-Compensator and PID-Controller in Single-Machine Infinite-Bus","authors":"Agus Junaidi, R. Salman, R. Rahmaniar, K. Abd., N. Jalinus, G. Ganefri","doi":"10.4108/eai.18-10-2018.2287403","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287403","url":null,"abstract":"The paper present the dynamic oscillation of the electric power system. The concept of system resilience that functions for machines that move normally and can return to a stable state after a disturbance occurs. Oscillation of changes in speed and oscillation changes in the electric power system occur due to disturbances. Disturbance in electricity causes an electric current that works on the system beyond the nominal current. The effect of the current disturbance will have an impact on changes in the current torque parameters that cause prime-over instability when the generator is operating. This instability will affect the rotor speed and the voltage emitted by the generator. Dynamic oscillation repair testing by applying phase compensation control and PID-Controller on the excitation system is done to see the response of speed and voltage response when the system is experiencing interference. Observation of system oscillation response using matlab simulation to see system performance. The simulation results show that dynamic stability improvement with phase compensation method can reduce oscillation speed and voltage within 6 seconds and the use of PID-controller can reduce the speed and voltage in 3 seconds. The phase compensation method and PIDcontroller applied to the excitation system can reduce the electric power system oscillation.","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131281864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287186
Agnes Br Manurung, Amalia Fildzah, J. Rajagukguk
Computer based test (CBT) becomes more pervasive in the last few decades, there is growing need for educators to consider modes of assessment because there are many advantages. CBT is an effective solution for mass education evaluation, so that CBT is very necessary applied especially in evaluation and assessment for students. The purpose of this research is to design a system for student academic examination based on computer based test (CBT). The system is designed to facilitate the examnination processes and manage challenges surrounding the conduct of examination, autosubmission, auto-marking and examinaton result report generation. The kind of this research is part of research and development (R&D) research. Model design is adopted from Thiagaraja, which have four-D model: (1) define, (2) design, (3) development, (4) disseminate. This research was executed until the limited trial of design model because the lack of the time of this study. Define was analysed student‟s need, the goal, and the CBT‟s concept. Design was choosed the CBT‟s software, software that used in this study was learning management system (LMS) Moodle. The goal of this study is create CBT system for student examination and showed the effectivity of the system.
{"title":"Computer Based Test (CBT) System for Student Academic Examination","authors":"Agnes Br Manurung, Amalia Fildzah, J. Rajagukguk","doi":"10.4108/eai.18-10-2018.2287186","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287186","url":null,"abstract":"Computer based test (CBT) becomes more pervasive in the last few decades, there is growing need for educators to consider modes of assessment because there are many advantages. CBT is an effective solution for mass education evaluation, so that CBT is very necessary applied especially in evaluation and assessment for students. The purpose of this research is to design a system for student academic examination based on computer based test (CBT). The system is designed to facilitate the examnination processes and manage challenges surrounding the conduct of examination, autosubmission, auto-marking and examinaton result report generation. The kind of this research is part of research and development (R&D) research. Model design is adopted from Thiagaraja, which have four-D model: (1) define, (2) design, (3) development, (4) disseminate. This research was executed until the limited trial of design model because the lack of the time of this study. Define was analysed student‟s need, the goal, and the CBT‟s concept. Design was choosed the CBT‟s software, software that used in this study was learning management system (LMS) Moodle. The goal of this study is create CBT system for student examination and showed the effectivity of the system.","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130171496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287366
Evi Eviyanti
{"title":"Schoology Implementation in the Teaching of Production OralePréÉlémentaire","authors":"Evi Eviyanti","doi":"10.4108/eai.18-10-2018.2287366","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287366","url":null,"abstract":"","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126814028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287190
E. Gradini, N. Lubis, F. Firmansyah, B. Yustinaningrum, R. Gemasih
{"title":"Analyzing Students’ Higher Order Thinking Skills Using TIMSS-Like Questions","authors":"E. Gradini, N. Lubis, F. Firmansyah, B. Yustinaningrum, R. Gemasih","doi":"10.4108/eai.18-10-2018.2287190","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287190","url":null,"abstract":"","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127948338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287171
Syafitri Aulia, H. Sipahutar, Syahmi Edi
{"title":"Contribution of Multiple Intelligence to Students’ Biology Learning Outcomes in whole MAN (Madrasah Aliyah Negeri) Medan","authors":"Syafitri Aulia, H. Sipahutar, Syahmi Edi","doi":"10.4108/eai.18-10-2018.2287171","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287171","url":null,"abstract":"","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114432734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287189
Asmariati Purba, H. Sipahutar, Syahmi Edi
This study aims to investigate the comparison of self-regulated and learning achievements of students who are taught by using e-learning based schoology and power point media on human reproduction system in grade XI IPA SMA Negeri 1 Silimakuta. The research method which is applied is quasi experiment with the participans of all students of grade XI IPA are 160 students. The sample of research is determined by cluster random sampling technique mainly grade XI-1 is taught by using e-learning based schoology media and grade XI-2 is taught by using power point media. The research design which is used is pretest-posttest control group design. Data analysis technique used Independent Samples t Test. The results of the research shows that the students' self-regulated learning which is taught by using e-learning based schoology media is 88,33±0,482 with the gain of 14,93±1,005 while in the class power point is 83,33±0,682 with the gain of 9,57±0,827. Students' self-regulated learning which is taught by using e-learning based schoology media is significantly higher is 21,88% compared with by using power point media (tcount4,124; P=0.000). Students' learning achievements which is taught by using e-learning based schoology media is 85.44 ± 1,018 with the gain of 61,44±2,138 while in the class power point is 72,53±1,448 with the gain of 50,07±2,911. Students' learning achievements which is taught by using e-learning based schoology media is significantly higher is 10,19% compared with by using power point media (tcount3,145; P=0.003). As a conclusion that the use of elearning based schoology media more contributes to improve self-regulated and learning achievements, especially in the material of the human reproduction system. Thus, researchers suggest that the use of e-learning based schoology media in the process of biology learning as one of the learning innovation efforts.
{"title":"Comparison of Self-Regulated and Students’ Learning Achievements by Using E-learning Based Schoology and Power Point on Biology Materia","authors":"Asmariati Purba, H. Sipahutar, Syahmi Edi","doi":"10.4108/eai.18-10-2018.2287189","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287189","url":null,"abstract":"This study aims to investigate the comparison of self-regulated and learning achievements of students who are taught by using e-learning based schoology and power point media on human reproduction system in grade XI IPA SMA Negeri 1 Silimakuta. The research method which is applied is quasi experiment with the participans of all students of grade XI IPA are 160 students. The sample of research is determined by cluster random sampling technique mainly grade XI-1 is taught by using e-learning based schoology media and grade XI-2 is taught by using power point media. The research design which is used is pretest-posttest control group design. Data analysis technique used Independent Samples t Test. The results of the research shows that the students' self-regulated learning which is taught by using e-learning based schoology media is 88,33±0,482 with the gain of 14,93±1,005 while in the class power point is 83,33±0,682 with the gain of 9,57±0,827. Students' self-regulated learning which is taught by using e-learning based schoology media is significantly higher is 21,88% compared with by using power point media (tcount4,124; P=0.000). Students' learning achievements which is taught by using e-learning based schoology media is 85.44 ± 1,018 with the gain of 61,44±2,138 while in the class power point is 72,53±1,448 with the gain of 50,07±2,911. Students' learning achievements which is taught by using e-learning based schoology media is significantly higher is 10,19% compared with by using power point media (tcount3,145; P=0.003). As a conclusion that the use of elearning based schoology media more contributes to improve self-regulated and learning achievements, especially in the material of the human reproduction system. Thus, researchers suggest that the use of e-learning based schoology media in the process of biology learning as one of the learning innovation efforts.","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"177 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134192276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-04DOI: 10.4108/eai.18-10-2018.2287361
R. Situmorang, Noni Syahdini, A. Hakim, D. D. Panggabean, J. Rajagukguk, J. Kaewkhao
{"title":"Structural and Optical Properties of Er3+ Doped Sodium Phosphate Glasses System for Laser Medium Candidate","authors":"R. Situmorang, Noni Syahdini, A. Hakim, D. D. Panggabean, J. Rajagukguk, J. Kaewkhao","doi":"10.4108/eai.18-10-2018.2287361","DOIUrl":"https://doi.org/10.4108/eai.18-10-2018.2287361","url":null,"abstract":"","PeriodicalId":240056,"journal":{"name":"Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114467728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Proceedings of the Proceedings of The 5th Annual International Seminar on Trends in Science and Science Education, AISTSSE 2018, 18-19 October 2018, Medan, Indonesia
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：