Universitas Ahmad Dahlan Research Articles

Analisis Faktor pada Keterlambatan Studi Mahasiswa Teknik Industri Universitas Ahmad Dahlan

Accreditation for higher education institutions is an important part for ensuring the quality of institutions. The percentage of graduating on time is one of important assessments in the accreditation of study programs by for Higher Education. However, escalating the number of students in Industrial Engineering Study Program, Universitas Ahmad Dahlan, is not matched by the number of students who can graduate on time. As a result, there is an accumulation for the number of students. Therefore, this research aimed to conduct faktor analysis of study completion delay for students in Industrial Engineering Study Program, Universitas Ahmad Dahlan. Data collection was carried out by distributing questionnaires to Industrial Engineering students who experienced of study completion delay. The questionnaire contained questions related to 9 variabels, named intelligence, interests, talents, relationship with family member, relationship with other students, discipline, and completion of final project. Faktor analysis by using Principal Component Analysis was conducted to determine formed faktors. The result showed there were 2 faktors formed from 8 variabels. The first faktor was Potential and Completion of Final Project with eigen value 3.434 and variance could be explained from this faktor was 43.434%. Meanwhile, the second faktor was the Family and Campus Environment with eigen value 1.015 and variance could be explained from this faktor was 12.685%. Thus, study the National Accreditation Board can determine the appropriate strategy based on the result of faktor analysis.

The insertion of anti-corruption education into Islamic education learning based on neuroscience

<span>This research aimed to analyze the insertion of anti-corruption education in Islamic education. In the context of anti-corruption education, especially students in tertiary institutions, corrupt practices are manifested in the form of corrupt behavior, such as plagiarism, cheating, truancy, and hitchhiking in group assignments, even though they do not contribute. Anti-corruption education in Islamic education has so far used a dogmatic approach, not using an approach that has a transformative impact, especially neuroscience. In this case, Universitas Ahmad Dahlan, with lecturers who have special competence as anti-corruption trainers, has carried out anti-corruption education in various scientific fields, including Islamic education. This phenomenological type of qualitative research involved 52 students and six lecturers in the master study program of Islamic education. The results showed that anti-corruption education was carried out through insertion into all relevant subjects, especially the neuroscience of Islamic education. The lecturer investigates students' corrupt behavior in anticipation of future corruption crimes. The investigation results show that the most corrupt behavior of students is plagiarism, taking names in group assignments, and leaving absences with friends. The insertion of anti-corruption education with a neuroscience approach is applied in building integrity awareness that corrupt behavior is contrary to how the brain works and even has the potential to destroy reason.</span>

Developing Number Theory Textbook for Pre-Service Mathematics Teacher of International Program

The long-term objective of this research is to produce valid, practical, and effective textbooks for courses in international program of mathematics education of Universitas Ahmad Dahlan. For the short-term, this research aims to produce valid and practical textbook for number theory course. The validity was based on the relevancy towards the students’ expected competence, while the practicality was measured from the implementation of learning using the textbook. This research used design research with the type of development studies. It followed four steps, i.e. (1) preliminary research, (2) prototyping stage, (3) summative evaluation, and (4) systemic reflection and documentation. In the preliminary research, we analyzed the need of the textbook in the international program and found that the textbook of number theory course is very needed. In the prototyping stage, we wrote the textbook based on the need analysis. The prototype was then discussed with expert and revised in the stage of summative evaluation and applied to the lecture meetings. The result was the final product of the textbook used for the stage of systemic reflection and documentation when we wrote all the results according to the preset research framework. Finally, the developed number theory textbook is valid and practical.

Detection of Coliform and Escherichia coli on Ice Cubes from Beverage Sellers around Campus 4 of Universitas Ahmad Dahlan

Ice cubes are a complement to drinks. Ice cubes must not contain Coliform or Escherichia coli. Coliform and Escherichia coli are indicator microorganisms used in water quality analysis. Its presence indicates fecal contamination. The purpose of this study was to analyze the presence of Coliform and E.coli on ice cubes found in drinks sold around the Kampus 4 Universitas Ahmad Dahlan. Sampling was done by purposive sampling. The sample used in this study was 7 ice cube samples taken from different stalls around the campus. This study used the MPN (Most Probable Number) method which consists of a presumptive test, a confirmative test and the Escherichia coli test. A positive result was indicated by changes in the turbidity of the media and the presence of gas bubbles in the durham tube. Data analysis was performed by comparing the number of positive tubes in the observation results with the MPN table. Based on the data obtained, samples of ice cubes from 7 sellers around Kampus 4 Universitas Ahmad Dahlan were positive for Coliform and Escherichia coli bacteria. The principles of food sanitation hygiene need to be improved to prevent bacterial contamination on ice cubes.

Naive Bayes for Thesis Labeling

The thesis preparation in the Department of Informatics Universitas Ahmad Dahlan is divided into two areas of interest, namely Intelligent Systems and Software and Data Engineering. Existing thesis title data is only used as an archive and has never been processed or classified to determine the trend of thesis topics based on student interest each year. The stages include data collection, the data is divided into two parts (training data and test data), manual labeling of training data, text preprocessing, and classification using Naive Bayes. The results show the trend of thesis title taking from 2013 to 2018 shows the thesis trend in the field of Intelligent Systems and Software. Accuracy testing uses Confusion Matrix and K-Fold Cross Validation with a k value is 10, has a value of 94.60%, precision of 97.30%, and a recall of 85.70%.

Online Learning Model in Improving Civic Responsibility as a Solution during Covid-19 Pandemic in Indonesia

This study aimed to examine the implementation of quarantine in terms of the online learning model in improving civic responsibility as a solution during the Covid-19 pandemic in Indonesia. This study's subject was 47 students (17 males and 30 females) at the Department of Teacher and Primary Education Universitas Ahmad Dahlan, Yogyakarta, which was processing Citizenship Education in the academic year 2019/2020. The researchers collected the data from students and lecturers through observation, interviews, and documentation study. The technique of data analysis was performed through descriptive qualitative analysis. The study results indicated that the online learning model at the Department of Teacher and Primary Education Ahmad Dahlan University in 2019/2020 could improve students' civic responsibility. The data have shown that civic responsibility consisted of 97 % social participation, 76 % social advocacy, and 79 % citizenship participation. This study could finally conclude that online learning model could improve civic responsibility as a solution during the Covid-19 pandemic in Indonesia and tended to be an alternative and effective model in rare situations. This research can be used as input in increasing civic responsibility as a solution during a pandemic in Indonesia.

THE STUDENT’S METACOGNITIVE SKILLS OF PROSPECTIVE PRIMARY SCHOOL TEACHERS

Metacognitive skill is essential to have by every individual, including the prospective teachers' students. Some teachers who have not trained in metacognitive ability would be caused by the lack of understanding of the stages in carrying out metacognitive ability. It has not realised that metacognitive ability can affect students' learning process and learning outcome. The students who have the excellent metacognitive ability can develop metacognitive domain-oriented learning. This study aims to know the metacognitive skills of prospective primary school teachers in Universitas Ahmad Dahlan. This research used a quantitative approach to descriptive type and survey method. The samples are 100 students of elementary school educations of Universitas Ahmad Dahlan consisted of the semester II, IV, and VI. The instrument used Metacognitive Ability Inventory (MAI) with the Likert scale(1-5). Data were analysed using descriptive statistics to determine the Mean, standard deviation, percentage, and metacognitive categorisation of elementary school education students. The research result showed a low-medium range category. It influenced by some factors related to the inadequate metacognitive development of prospective primary school teachers. Judging from the cognitive knowledge aspect, the high category of the percentage calculation of cognitive knowledge aspects is in the declarative knowledge aspect. In the cognitive regulation aspect, planning becomes the highest percentage of cognitive regulation aspect.

Strengthening the development of Qur’anic schools and student profiles about Pancasila during the pandemic

Learning in the mass of the Covid-19 pandemic requires various innovations and management to stay in line with the direction and goals in education. The purpose of this service is to increase the understanding of TPA teachers (ustadz / ustadzah) to develop Taman Pendidikan Al-Qur’an/TPA (Qur’anic school) and learning during the pandemic as well as to strengthen the profile of Pancasila Students. The service was carried out by a team from the Department of Primary School Teacher Education, Universitas Ahmad Dahlan during a month. Based on the dedication carried out, it is known that there has been an increase in understanding of TPA development and learning during the pandemic. This event also produces TPA management documents. Based on this dedication, it can be concluded that the understanding of TPA teachers to develop TPA and learning during the pandemic has increased. It is hoped that the continuity of this service activity is that there is a continuation of cooperation to increase the understanding of TPA teachers to develop TPA and learning during the pandemic as well as to strengthen the profile of Pancasila Students.

PENGARUH PHYSICAL EVIDENCE TERHADAP KEPUTUSAN PEMILIHAN PROGRAM STUDI MANAJEMEN FAKULTAS EKONOMI DAN BISNIS UNIVERSITAS AHMAD DAHLAN

This study aims to analyze the factors influencing physical evidence on student decisions in choosing the Management Study Program, Faculty of Economics and Business, Universitas Ahmad Dahlan, either simultaneously or partially. This research is explanatory research with a quantitative approach. This study uses multiple analysis tests to find the partial and simultaneous effect between the dependent and independent variables. The validity and reliability used in this study have met the requirements. The results of this study indicate that facility exterior, facility interior, and other tangibles factors influencing the decision to choose the Management Study Program, Faculty of Economics and Business, Universitas Ahmad Dahlan. The result also shows that Physical Evidence Variables are simultaneously influencing the student's decision to choose the Management Study Program, Faculty of Economics and Business, Universitas Ahmad Dahlan.

Cover, Content, and Editorial Note from Borneo J Pharm Vol. 4 No. 1 February 2021

Alhamdulillahirabbil ‘Alamin. The next edition of the Borneo Journal of Pharmacy (Borneo J Pharm), has been published in February 2021. Starting from this edition, Borneo J Pharm increases the frequency of publishing four times a year. This change aims to improve the circulation of the best articles published by Borneo J Pharm. Also, starting from this edition, Borneo J Pharm applying the publish-as-you-go issue to present the title of the article that has been received as early as possible in order to increase the chances of readability and quotation of articles in Borneo J Pharm.
 This edition includes writings from four countries including Indonesia, India, Malaysia, and Nigeria. The authors come from several institutions, including Universitas Muhammadiyah Palangkaraya, Universitas Muhammadiyah Surakarta, Universitas Muhammadiyah Malang, Universiti Teknologi MARA Cawangan Sarawak, Politeknik Bina Husada Kendari, Universitas Halu Oleo, Akademi Farmasi Surabaya, Universitas Hang Tuah, Universitas Mandala Waluya, Universitas Gadjah Mada, Universitas Abdurrab, Federal University of Technology Minna, Humera Khan College of Pharmacy, University of Abuja, and Universitas Ahmad Dahlan.
 Editorial boards are fully aware that there is still room for improvement in this edition, hence with all humility willing to accept constructive suggestions and feedback for improvements to the publication for the next editions. The editorial board would like to thank all editors and reviewers, and contributors of the scientific articles who have provided the repertoire in this issue. We hope that all parties, especially the contributors of the articles, could re-participate for publication in the next edition in May 2021.

Preface

KONFERENSI NASONAL PENELITIAN MATEMATIKA DAN PEMBELAJARANNYA (KNPMP) V (The Fifth National Conference on Mathematics Research and Its Learning) “STEAM Education: An Innovative Approach in Teaching Mathematics Comprehensively”August 5th, 2020Auditorium Moh. DjazmanUniversitas Muhammadiyah SurakartaINDONESIAThe National Conference on Mathematics and Learning Research or KNPMP is an annual scientific forum organized by the Mathematics Education Study Program of Muhammadiyah University of Surakarta since 2016, and this year for the fifth time the KNPMP is held by using the new concept in form of Webinar (Youtube streaming: https://www.youtube.com/watch?v=7TIzDhErbcA&list=PLHPYTU7r9lGhuMX_ORN5SrZ7 V7FEzmTU1&ab_channel=TVUMS) due to Covid-19. In addition, KNPMP V that have to be conducted at 1 April 2020 have to be postponed to be 5 August 2020 with the theme “STEAM Education: An Innovative Approach in Teaching Mathematics Comprehensively”. The theme of STEAM or Science Technology Engineering Arts and Mathematics is considered very relevant to be raised at KNPMP V at this time because to answer the global challenges where today’s young generation needs to be equipped with creativity, innovation, and entrepreneurship. The STEM education that was echoed before was deemed insufficient to accommodate these three skills so that a special aspect was needed which according to Ge, Infatheler and Spector (2015) was more artistic and humanist. So, the Arts aspect has entered to complement STEM Education into STEAM Education so that the current and future young generations will become more competitive and humanist in facing global competition.In accordance with the theme, we invited one keynote speaker, and three experts as the main speakers. As the keynote speaker, we invite Dr. Sumardiyana as a Director of SEAMEO Qitep in Mathematics, Indonesia. As the first speaker was Assoc. Prof. Mazlini Adnan, Ph.D. from Universiti Pendidikan Sultan Idris, Malaysia. The second speaker was Dr. Toni Toharudin from Universitas Padjajaran, Indonesia. The third speaker was Dr. Rully Charitas Indra Prahmana from Universitas Ahmad Dahlan, Indonesia.I would like to express my gratitude to everyone who have supported this conference. I hope that the conference will facilitate a fruitful discussion, connect you with the other experts in the field, and further initiate a strong collaboration.With best regards,Naufal Ishartono, M.Pd.Conference ChairpersonUniversitas Muhammadiyah Surakarta ORGANIZING COMMITTEE No. Position Person In Charge 1. Steering Committee : 1. Prof. Dr. Budi Murtiyasa, M.Kom.2. Prof. Dr. Sutama, M.Pd.3. Dr. Sumardi, M.Si.4. Idris Harta, Ph.D.5. Slamet HW, M.Si.6. Ariyanto, M.Pd.7. Danuri, M.Pd.8. Dra. Sri Sutarni, M.Pd.9. Nining Setyaningsih, M.Si.10. Masduki, M.Si.11. Rita P Khotimah, M.Si.2. Chairperson : Naufal Ishartono, M.Pd.3. Vice Chairperson : Isnaeni Umi Machromah, M.Pd.4. Treasurer : Christina Kartika Sari, M.Sc.5. Secretary : Nida Sri Utami, M.Sc., M.Pd.6. Secretarial : 1. Adi Nurcahyo, M.Pd.2. Sri Rejeki, M.Sc.3. Ikhsan Dwi Setyono, M.Pd.7. Event Division : Nuqthy Faiziyah, M.Pd.8. Banquet Division : Rini Setyaningsih, M.Pd.9. Proceeding : 1. M. Noor Kholid, M.Pd.2. Annisa Swastika, M.Pd.10. Publication : Dimas Adilla Putra, M.Cs.11. Transportation : 1. Hirtanto, M.Pd.2. Suci Juniarto, M.Pd.3. Pujiyanto, MA.List of CONFERENCE DOCUMENTATION, Seminar Session, Parallel Session are avalible in the pdf.

Students’ perception on the use of role-play to improve students’ communicative competence

Recently, speaking is important in many aspects. A technique which can be used to increase speaking skill is by using role-play. It can develop communicative competence of the students. The aim of this study is to understand the students’ problems in doing role-play and to recognize the effects of role-play for the students in communicative competence aspect. The participants were fifth semester students of English Education Department, and it included 108 students. This study was conducted in campus 4 of Universitas Ahmad Dahlan. The instruments used questionnaire and interview. In calculating the questionnaire, SPSS 17.0 was used by the researcher. The questionnaire result showed that using role-play in learning process improves the communicative competence of the students. It is supported by interview result which described that (1) using role-play can increase vocabularies of students, (2) it gives new atmosphere in the classroom, and (3) the students get some experiences to add their knowledge.

Developing English materials for English for tourism

The potential of tourism industry increases every year. The tourism sector is believed to be able to create centers of economic growth of the country. One of the institutions that play a role in tourism industry is English Education Department, Universitas Ahmad Dahlan. This department cooperates with several tourism partners to train the students about tourism. There are two subjects about tourism named English for Tourism and Practicum on Tourism. The problem emerged from the students and materials. The students of English for Tourism lack of vocabulary and speaking. They need specific materials (textbook) for learning English about tourism. The materials of English for Tourism should be developed. Therefore, the objectives of the study are (1) developing English materials for English for Tourism; (2) finding out the possible English developed materials for English for Tourism. This study is research and development. The steps are identifying potentials and problems, collecting the data, product design, product validation, product revision and product trial. The data were obtained from an instrument of which validation was from an expert of material, instrument expert. The validated instrument was used for subject trial assessment. The subject of this research was the students of English for Tourism. Simple random sampling was used in this study. In composing the materials, the needs from the previous research by Effendi and Khafidhoh (2018) were one to consider in addition to the existing syllabus of English for Tourism in English Education Department. The product of this research is English developed materials (textbook) for English for Tourism. The total score of expert material’s validation is 82%, it shows that the developed materials are excellent. The mean of subject trial assessment is 82.94%, it shows that the product is excellent. The mean of the score validation and subject trial assessment is 82.47%, it is an excellent product.

The Online Conference of the Tenth International Conference and Workshop on High Dimensional Data Analysis (ICW-HDDA-X) 2020

B N Ruchjana1, J Rejito1, A Pradana1, A N Falah1, M Alawiyah1, R C I Prahmana2, F C Permana3 and K A Sugeng4 1Department of Mathematics, Universitas Padjadjaran, Jl. Raya Bandung Sumedang km 21 Jatinangor, Sumedang 45363, Indonesia 2Department of Mathematics Education, Universitas Ahmad Dahlan, Jl. Pramuka 42, Umbulharjo, Yogyakarta, Indonesia 3Department of Multimedia Education, Universitas Pendidikan Indonesia, Indonesia, Jl. Dr. Setiabudi No.229, Isola, Bandung, Jawa Barat 40154, Indonesia 4Department of Mathematics, Universitas Indonesia, Jl. Margonda Raya, Depok, Jawa Barat 16424, IndonesiaE-mail: budi.nurani@unpad.ac.id Preface The Tenth International Conference and Workshop on High Dimensional Data Analysis (ICW-HDDA-X) is a join conference between institution in Indonesia and Canada. It is initiated since 2018 by collaboration between Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran and Faculty of Mathematics and Science, Brock University, Canada. The planning of the ICW-HDDA-X 2020 was an offline conference and it will be held at the Prime Plaza Hotel, Sanur-Bali, Indonesia on 12-15 October 2020. Many expert people gave a commitment to come to Bali Indonesia for academic and also for tourism. Because of there is a pandemic Covid-19, so the ICW-HDDA-X 2020 changed to be Online Conference. The ICW-HDDA-X is still organized and hosted in Bandung, Indonesia and the schedule is shorted to be 13-14 October 2020 due to the different time zone between Indonesia and Canada.

Preface

Assalamualaikum warahmatullahi wabarokatuhEducation is an effort to educate people, through education the quality of human life becomes better, and it is captured and realized by all Muhammadiyah universities in Indonesia, especially from the Faculty of Teacher Training and Education Science. The problem that occurs is the need for a lot of innovation related to the implementation of learning in the classroom so that the learning process becomes more enjoyable. Thus, students will be more eager to learn and their academic achievement will be better, which of course has implications for the quality of education which is also better. Therefore, the Association of Muhammadiyah Higher Education Teaching Institutions (ALPTK-PTM) in collaboration with Universitas Ahmad Dahlan and Universitas Muhammadiyah Surakarta as the local committee initiated the holding of The 5th Progressive and Fun Education International Conference (The 5th Profunedu) which was held on 8 August 2020 in the form of Zoom Webinar.List of titles Organizing Committee, Conference Documentation are available in this pdf.

ANALYSIS OF THE INFLUENCE OF SERVICE QUALITY ON THE LEVEL OF STUDENT SATISFACTION

Introduction: This study aims to determine whether there is an effect of service quality on student satisfaction at the Faculty of Economics and Business, Ahmad Dahlan University Yogyakarta. And to find out how the influence of the quality of Administration services, library services and parking services on student satisfaction.
 Methods: This research is a survey research using a questionnaire as the instrument. The population in this study were students of the Ahmad Dahlan University Faculty of Economics and Business Yogyakarta. The sample in this study were 121 active students of the Faculty of Economics and Business, Universitas Ahmad Dahlan Yogyakarta using the Porposive Sampling Method. Namely the technique of determining the sample for certain considerations. Test the validity of the instrument using Confir Motory Factor Analysis. While the reliability test used Alpha Crombach. The analysis technique used is multiple linear regression analysis technique.
 Results: The results of this study indicate that the Administration variable (X1) has a significant positive effect on student satisfaction at the Ahmad Dahlan University Faculty of Economics and Business Yogyakarta. While the library variable (X2) has a significant positive effect on student satisfaction at the Faculty of Economics and Business, Ahmad Dahlan University Yogyakarta. And the third variable is the Parking variable (X3) has a positive significant effect on student satisfaction at the Faculty of Economics and Business, Ahmad Dahlan University Yogyakarta.
 Keywords: Administration service quality, library service quality, parking service quality and student satisfaction.

The Effectiveness of Activated Charcoal from Coconut Shell as The Adsorbent of Water Purification in The Laboratory Process of Chemical Engineering Universitas Ahmad Dahlan Yogyakarta

Penelitian ini bertujuan untuk menguji efektivitas arang aktif dari tempurung kelapa untuk pemurnian air di Laboratorium Proses Teknik Kimia, Universitas Ahmad Dahlan, Yogyakarta. Penelitian terdiri dari tiga tahapan: Tahapan pertama, menganalisis kandungan air Laboratorium Teknik Kimia UAD, Tahapan kedua, pengujian efektivitas arang aktif untuk penjernihan air dengan dua (2) cara: (1) filter kolom arang aktif dan (2) pencampuran arang aktif dan air sampel, kemudian dilakukan pengadukan. Tahapan ketiga, menganalisa hasil pemurnian air seperti analisis pH, kadar logam, kesadahan (hardness), kadar sulfat (SO4), kadar fluoride, dan mineral. Parameter pemurnian air merujuk pada Clean Water Quality Standards Kementrian Kesehatan. Hasil penelitian yang diperoleh menunjukkan bahwa pemurnian air menggunakan metode kolom filter dapat mengurangi kesadahan kalsium karbonat (CaCO3) hingga 15,33%, kadar asam sulfat (SO4) hingga 98,21%, kadar Flourida (F) hingga 93,35% pada ketebalan kolom arang aktif 15 cm. Sedangkan pemurnian air dengan pencampuran arang aktif dan pengadukan selama 30 menit dengan kecepatan 1000 rpm dapat mengurangi tingkat kekesadahan CaCO3 hingga 26,81%, kadar asam sulfat (SO4) hingga 98,23%, dan fluorida (F) hingga 93,35%. Pemurnian air melalui pencampuran arang aktif dan air dengan pengadukan lebih baik daripada penggunaan kolom arang aktif, karena klorida, bahan organik, nitrit, nitrat, Fe, Mn, CN- tidak ditemukan dalam air setelah pemurnian.
 
 This study aims to examine the effectiveness of activated charcoal from coconut shells for water purification at the Chemical Engineering Process Laboratory, Ahmad Dahlan University, Yogyakarta. The first stage, analyzing the water content of the UAD Chemical Engineering Laboratory, Second, testing the effectiveness of activated charcoal for water purification in two (2) ways: (1) activated charcoal column filter and (2 ) mixing the activated charcoal and water samples, then stirring. The third, analyzing the results of water purification such as analysis of pH, metal content, hardness (hardness), sulfate levels (SO4), fluoride levels, and minerals. Water purification parameters refer to the Ministry of Health's Clean Water Quality Standards. The results optimum obtained using the column filter in thickness activated charcoal column 15 cm could reduce hardness (CaCO3) by 15.33%, sulfuric acid (SO4) levels up to 98.21%, Fluoride (F) levels up to 93.35%. While by mixing activated charcoal (15 gram) and water (500 ml) with stirring for 30 minutes at a speed of 1000 rpm could reduce hardness levels by 26.81%, sulfuric acid (SO4) levels up to 98.23%, and fluoride (F) up to 93.35%. Purification of water through the mixing of activated charcoal and water with stirring is better than using an activated charcoal column because it is better than the chloride, organic matter, nitrite, nitrate, Fe, Mn, CN- are not found in the water after purification.

The 5th Seminar Nasional Matematika dan Pendidikan Matematika (SENATIK) 2020

Preface The fifth Seminar Nasional Matematika dan Pendidikan Matematika (SENATIK) was held by Mathematics Education Study Program, Universitas PGRI Semarang, Indonesia, in 2020. This seminar has objectives to improve mathematics teaching, to solve the mathematics problem, and to expand mathematics contribution to society.Freedom learning is a new policy of the Ministry of Education and Culture of the Republic of Indonesia to improve the national education system that seems monotonous. Through freedom learning, it is expected that it can create happiness and a joyful learning atmosphere for both students and teachers. Learning activities will be effective if the learning atmosphere is enjoyable. By having a joyful learning environment and adequate learning facilities, students are expected to be able to construct knowledge and support in generating motivation to learn actively. Also, by giving freedom in carrying out learning through their learning will train and instill a democratic attitude for students and also shape students’ creativity to explore their potential. As technology develops, teachers are expected to use technology for joyful learning. Through the integration of technology in the freedom of learning, it is expected that effective and efficient learning will be created. Therefore, teachers are required to be able to do innovative learning. In view of that, the Mathematics Education Study Program of Universitas PGRI Semarang invites researchers, practitioners, and educators to participate in and contribute to the fifth SENATIK 2020 under the theme “Freedom of Learning: Integration Technology in Mathematics Learning.”The keynote presentations are provided to show the contribution of mathematics educators in mathematics education towards research and knowledge sharing. We have three keynote speakers, that’s are Prof. Dr. Ratu Ilma Indra Putri, M.Si. (Universitas Sriwijaya, Indonesia). Dr. Irwan Endrayanto Aluiciues, S.Si., M.Sc. (Universitas Gajah Mada, Indonesia), and Dr. Achmad Buchori, M.Pd. (Universitas PGRI Semarang, Indonesia). We also have two speakers in the workshop session that are Dr. Rully Charitas Indra Prahmana (Universitas Ahmad Dahlan, Indonesia) and Dr. Muhtarom (Universitas PGRI Semarang).On this seminar implementation, from one hundred and thirty-one full paper registers, there are sixty-nine presenters declared to be qualified. Our wish all the participants would enjoy the seminar, so they involve valuable and rewarding, and improve the knowledge and experiences.Publishing Team

Coplanar waveguide low pass filter based on square complementary split ring resonator with wide rejection

In this paper, we present a novel coplanar waveguide low pass filter (LPF) structure based on the use of square complementary split ring resonators (CSRRs) in order to enhance the performances of a low pass filter. Especially, to enlarge the bandwidth of the LPF, the insertion losses and to increase the rejection of the LPF. The CSRRs are optimised and inserted periodically along the center conductor of the CPW line with a CPW ground integrating stubs permitting to enlarge the bandwidth. The simulation results of this filter show a -3 dB cut-off frequency equal to fc = 5.28 GHz. The designed filter has a good rejection in the stop band which below -20 dB and presents a good insertion loss in the bandwidth. The proposed filter has been fabricated and tested which give a good agreement between simulation and measurement results, the whole dimensions of the validated filter are 35.48x21.16 mm2. The originality of this work is the wide rejection band and the miniature dimensions. © 2020, Universitas Ahmad Dahlan.

Peer review declaration

All papers published in this volume of (Choose One) Journal of Physics: Conference Series/IOP Conference Series: Materials Science and Engineering/IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.□ Type of peer review: Single-blind / Double-blind / Triple-blind / Open / Other (please describe) All articles are double-blind reviewed by using the open conference system provided by Universitas Ahmad Dahlan. Both author and reviewer worked anonymously.□ Conference submission management system: The authors submitted their articles to the open conference system at http://seminar.uad.ac.id/index.php/adintercomme. The papers were distributed to the reviewers with double-blind review process. One paper was reviewed by two reviewers. The review results were also announced by the editor by using the open conference system. Furthermore, all accepted papers were revised by the authors and after this process, all articles were edited by the layout team to make the papers meet with the JPCS layout style.□ Number of submissions received: The number of all submitted papers is 137 which consist of 130 papers distributed to the reviewers and 7 papers were directly rejected because they did not meet with the requirements determined by the committee.□ Number of submissions sent for review: The number of papers sent for review is 130.□ Number of submissions accepted: The number of accepted papers is 83.□ Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): Acceptance Rate =.□ Average number of reviews per paper: The average number of reviews per paper is 2.□ Total number of reviewers involved: Total number of reviewers involved is 37.□ Any additional info on review process: The reviewers were assigned based on their expertise and research interest.□ Contact person for queries: Email: puguh.prasetyo@pmat.uad.ac.idMobile: +62-856-2911-051