This is the ninth time we are hosting this seminar and we are proud to inform you that this seminar is an annual event in our calendar and has been held every year since 2014. This year, for the third year, we are holding it via Zoom meeting (online meeting) due to Covid-19 pandemic. We are inviting internationally recognized speakers from several countries to share their latest discoveries in the fields of Biology, Chemistry, Physics, Mathematics and Science Education. Well-known researchers in science and science education will share their experiences and knowledge so that we can stay up-to-date with the latest information. This is one of the goals of this seminar. As science researchers, we realize the importance of information exchange among us. The new information enlightens our minds and gives us ideas on what to do next in our research and how to do it. This new information often becomes the foundation for our next project in particular and sets the research trends for the upcoming year in general. Information exchange also keeps us updated, allowing us to give and receive suggestions and critiques that will lead to better results. Therefore, we need a forum where we can share and exchange information. Seminars, conferences, and other scientific gatherings are the media through which we can do this. Organizer Faculty of Mathematics and Natural Sciences of Universitas Negeri Medan Where Web Seminar via Zoom Meeting When Tuesday, 8th November 2022 Theme The development of industrial-based research in science and science education to improve research innovation strategy Topics: AISTSSE-2020 included following topics: 1. Mathematics Science 2. Mathematics Education 3. Physics Science 4. Physics Education 5. Biology Science 6. Biology Education 7. Chemistry Science 8. Chemistry Education 9. Computer Science 10.Science Education Scientific Committee 1. Prof. Dr. Syawal Gultom, M.Pd, Universitas Negeri Medan (Indonesia) 2. Prof. Dr. Marleen Kamperman, University of Groningen (Netherland) 3. Prof. Manihar Situmorang, M.Sc., Ph.D , Universitas Negeri Medan (Indonesia) 4. Prof. Tsunenori Mine, School of Engineering, Department of Electrical Engineering and Computer Science, Kyushu University (Japan) 5. Prof. Dian Armanto, M.Pd, Universitas Negeri Medan (Indonesia) 6. Prof. Dr. Herbert Sipahutar, M.Sc , Universitas Negeri Medan (Indonesia) 7. Prof. Abedel Karrem Nasser M Alomari Department of Mathematics, Faculty of Science, Yarmouk University (Jordan) 8. Prof. Dr. Bornok Sinaga, M.Pd , Universitas Negeri Medan (Indonesia) 9. Prof. Dr. Muhammad Sattar Rasul Universitas Kebangsaan Malaysia, (Malaysia) 10. Prof. Motlan, M.Sc., Ph.D , Universitas Negeri Medan (Indonesia) 11. Prof. Dr. Asmin, M.Pd , Universitas Negeri Medan (Indonesia) 12. Prof. Dr. Fauziyah Harahap, M.Si, Universitas Negeri Medan (Indonesia) 13. Prof. Dr. Mukhtar, M.Pd , Universitas Negeri Medan (Indonesia) 14. Prof. Dr. Pargaulan Siagian, M.Pd , Universitas Negeri Medan (Indonesia) 15. Prof. Dr. Sahat Saragih, M.Pd , Universitas Negeri Medan (Indonesia) 16. Prof. Dr. Edi Syahputra, M.Pd , Universitas Negeri Medan (Indonesia) 17. Prof. Dr. Hasratuddin, M.Pd , Universitas Negeri Medan (Indonesia) 18. Prof. Dr. Ramlan Silaban, M.Si, Universitas Negeri Medan (Indonesia) 19. Prof. Dr. Retno Dwi Suyanti, M.Si , Universitas Negeri Medan (Indonesia) 20. Prof. Dr. Nurdin Bukit, M.Si , Universitas Negeri Medan (Indonesia) 21. Prof. Dr. Sahyar, M.S , Universitas Negeri Medan (Indonesia) 22. Prof. Dr. rer. nat. Binari Manurung, M.Si , Universitas Negeri Medan (Indonesia) 23. Prof. Dr. Makmur Sirait, M.Si , Universitas Negeri Medan (Indonesia) 24. Prof. Dr. Eva Marlina Ginting, M.Si , Universitas Negeri Medan (Indonesia) 25. Prof. Dr. Drs. Tri Harsono, M.Si, Universitas Negeri Medan (Indonesia) 26. Prof. Dr. Martina Restuati, M.Si, Universitas Negeri Medan (Indonesia) 27. Prof. Drs. Zul Amry, M.Si., Ph.D, Universitas Negeri Medan (Indonesia) Supported by: FORUM MIPA LPTK INDONESIA

This book contains the proceedings of the The 5th Annual International Seminar on Trends in Science and Science Education (AISTSSE) and The 2nd International Conference on Innovation in Education, Science and Culture (ICIESC), where held on 18 October 2018 and 25 September 2018 in same city, Medan, North Sumatera. Both of conferences were organized respectively by Faculty of Mathematics and Natural Sciences and Research Institute, Universitas Negeri Medan. The papers from these conferences collected in a proceedings book entitled: Proceedings of 5th AISTSSE. In publishing process, AISTSSE and ICIESC were collaboration conference presents six plenary and invited speakers from Australia, Japan, Thailand, and from Indonesia. Besides speaker, around 162 researchers covering lecturers, teachers, participants and students have attended in this conference. The researchers come from Jakarta, Yogyakarta, Bandung, Palembang, Jambi, Batam, Pekanbaru, Padang, Aceh, Medan and several from Malaysia, and Thailand. The AISTSSE meeting is expected to yield fruitful result from discussion on various issues dealing with challenges we face in this Industrial Revolution (RI) 4.0. The purpose of AISTSSE is to bring together professionals, academics and students who are interested in the advancement of research and practical applications of innovation in education, science and culture. The presentation of such conference covering multi disciplines will contribute a lot of inspiring inputs and new knowledge on current trending about: Mathematical Sciences, Mathematics Education, Physical Sciences, Physics Education, Biological Sciences, Biology Education, Chemical Sciences, Chemistry Education, and Computer Sciences. Thus, this will contribute to the next young generation researches to produce innovative research findings. Hopely that the scientific attitude and skills through research will promote Unimed to be a well-known university which persist to be developed and excelled. Finally, we would like to express greatest thankful to all colleagues in the steering committee for cooperation in administering and arranging the conference. Hopefully these seminar and conference will be continued in the coming years with many more insight articles from inspiring research. We would also like to thank the invited speakers for their invaluable contribution and for sharing their vision in their talks. We hope to meet you again for the next conference of AISTSSE.

In writing the present book I have had in mind the following objectives: - To propose a theoretical, comprehensive view of the domain of intuition. - To identify and organize the experimental findings related to intuition scattered in a wide variety of research contexts. - To reveal the educational implications of the idea, developed for science and mathematics education. Most of the existing monographs in the field of intuition are mainly concerned with theoretical debates - definitions, philosophical attitudes, historical considerations. (See, especially the works of Wild (1938), of Bunge (1 962) and of Noddings and Shore (1 984).) A notable exception is the book by Westcott (1968), which combines theoretical analyses with the author’s own experimental studies. But, so far, no attempt has been made to identify systematically those findings, spread throughout the research literature, which could contribute to the deciphering of the mechanisms of intuition. Very often the relevant studies do not refer explicitly to intuition. Even when this term is used it occurs, usually, as a self-evident, common sense term.

The book is divided into five parts with a total of 14 chapters. The first part begins by introducing the basic concepts of stability. The second part develops the system model in detail. Part three presents the small signal stability analysis applied to the problem of low frequency oscillations. Part four presents the SSR phenomenon and part five deals with the transient stability problem. The basic concepts of voltage stability and methods of analysis are discussed in Appendix A.

This book presents a philosophical interpretation of Plotinus' mysticism in light of his metaphysics. For Plotinus, the ineffable One is immanent in man, such that henosis always already pertains to his original condition. So the point of Plotinus' mystical teaching is not to change man's nature, but to dispel his misconceptions about henosis.

The analysis of silk is a fascinating topic for research in itself but here, focusing on the 9th and 10th centuries, Marianne Vedeler takes a closer look at the trade routes and the organization of production, trade and consumption of silk during the Viking Age. Beginning with a presentation of the silk finds in the Oseberg burial, the richest Viking burial find ever discovered, the other silk finds from high status graves in Scandinavia are discussed along with an introduction to the techniques used to produce raw silk and fabrics. Later chapters concentrate on trade and exchange, considering the role of silk items both as trade objects and precious gifts, and in the light of coin finds. The main trade routes of silk to Scandinavia along the Russian rivers, and comparable Russian finds are described and the production and regulation of silk in Persia, early Islamic production areas and the Byzantine Empire discussed. The final chapter considers silk as a social actor in various contexts in Viking societies compared to the Christian west.