bluuebunny/crossref_metadata_2025 huggingface dataset:
Hidden of Human Potentials of Children with Down Syndrome (DS) Based on Response to Intervention
Authors: Bintoro Totok , Riana Bagaskorowati  , Murni Winarsih
Published: December 2022

Every child has potential, both typical children and children with special needs, especially children with Down Syndrome (DS). Children with DS are classified as having mental retardation; a low level of intelligence indicates the most prominent characteristics. Children with DS have opportunities to grow and develop and possibilities in their human potential. This study aims to identify the hidden human potential in children with Down syndrome (DS) based on the response to the intervention. This type of research is a case study. Researchers chose three research subjects as samples to be observed. The approach used in this research is a case study with a qualitative descriptive approach through an experimental study method. Data collection methods in this study were interviews, observation, documentation, and field notes. The instruments used are observation sheets and interviews. The data used in this study is qualitative data with the Miles and Huberman model. The study results showed that three children with DS had shown the advantages of hidden human potential such as drawing and dancing. The emergence of this hidden human potential is shown by the creation of trust in their relationships with peers, parents, and teachers.
Characteristics of National Standardized School Examination Test Items on Biology Subject in High School
Authors: Hidayah Murti Ambarwati , Retnawati Heri , Yusron Eri
Published: December 2022

A good test instrument is required to measure students’ academic abilities. For final-year students, this ability is measured by USBN tests. This study aimed to analyses the characteristics of biology test items in the National Standardized School Examination (USBN) and analyses item tests categorized as difficult and poor. Type of study was descriptive exploratory with quantitative and qualitative approaches. Quantitative data analysis was performed using the classical test and item response theories with 1 logistic parameter model. Qualitative data analysis described why such question items are categorized as difficult and poor according to the classical test theory. The data were collected by using documentation of the answers of 193 students. The study results show that, according the classical test theory, Biology USBN item tests had the average difficulty index of 0.525 (moderate category) and the average of discrimination index obtained is equal to 0.124 (good category). Based on the item response theory, the mean difficulty index was -0.00029 (moderate category). The reliability test estimation result was 0.51, categorized as moderate. The qualitative analysis result showed that items categorized as difficult are the food web in the ecosystem, nervous system, and human excretion system.
The Commitment of Special School Teachers Towards The Implementation of Distance Learning During the Covid-19 Pandemic
Authors: Subagya Subagya
Published: December 2022

The COVID-19 pandemic is a challenge for teachers to keep learning. One alternative that teachers can do is distance learning. The continuity of learning is largely determined by the commitment of the teacher. The purpose of this study is to reveal the contribution of teacher commitment to the continuity of learning, as well as to find out the effective contribution and relative commitment of teachers to learning in special schools. This research approach is quantitative research. The sampling technique used is accidental sampling, where the determination of the sample is based on chance, anyone who responds to the researcher can be used as a sample. Data collection techniques using a questionnaire. The teacher commitment instrument was adapted from the commitment scale developed by Allen and Meyer which has sufficient validity and reliability. The learning instrument uses content validity, and the instrument reliability uses the interrater technique. Questionnaires were sent via WhatsApp to all teacher communities throughout Indonesia which were limited to 3 days and collected 872 respondents. The data were analyzed by multiple regression with the help of SPSS 23. The results showed that the teacher's commitment to the implementation of distance learning was influenced by the teacher's commitment by 2.5% and influenced by other variables not included in the linear regression model by 97.5%. Normative commitment has an effective contribution (1.31%) and a relative contribution (51.77%), which is the largest contribution compared to the other two aspects of commitment.
Learning with Coping Strategies in Solving Multi-step Arithmetic Problems Towards Numeracy Skills
Authors: Yosa Nabhila , Amir Mohammad Faizal , Wardana Mahardika Darmawan Kusuma
Published: December 2022

The numeracy skills of elementary school students are still inadequate in solving multi-step arithmetic problems. This study aims to analyses the effect of learning with coping strategies in improving the numeracy skills of elementary school students in solving multi-step arithmetic problems. This type of research uses a quasi-experimental design with a pretest-posttest control group. The research participants were 51 fifth grade elementary school students who were randomly assigned to the experimental and control groups. Data collection using tests with multi-step arithmetic problem instruments those are oriented towards numeracy. Data analysis in this study used a paired t-test followed by a chi-square test. The results showed that coping strategies in solving multi-step arithmetic problems had a significant effect on the achievement of increasing primary students' numeracy skills. The results of this study have implications for initial empirical evidence for educators and subsequent research those elementary school students who have inadequate numeracy skills can be improved through coping strategies which are stimulation strategies by imitating and solving multi-step arithmetic problems that have gradual completion.
Contextual Electronics Learning Module in Sociology Learning at Senior High School
Authors: Baeng Benediktus , Situmorang Robinson , Winarsih Murni
Published: December 2022

The low achievement of student learning outcomes in sociology learning is caused by student learning difficulties. This learning difficulty is caused by limited contextual learning resources. One solution to overcome these learning difficulties is to use contextually based sociology e-modules. This study aims to develop sociology learning e-modules based on a contextual learning approach, especially with the context of East Nusa Tenggara society. This research is a Research and Development (R&D) developed using the Dick and Careys model which is integrated with Hannafin and Peck. Data collection methods are carried out by observation, interviews and questionnaires. Methods of data analysis carried out qualitatively and quantitatively. This study involved teachers, experts and students of class XI IPS as users of the e-module. The results of the study show that the Sociology E-module is declared feasible based on the assessment of experts. The sociology e-module received good ratings by learning design experts, very good by material experts, and very good by media experts. The user response also gives a very good assessment of the E-module. Based on the results of effectiveness testing, the sociology e-module is effective in improving student learning outcomes. This research contributes to sociology learning based on the context of East Nusa Tenggara society.
Test Instruments to Measure Non-Routine Mathematics Problem Solving Ability Grade IV Elementary School Students
Authors: Jatiningtyas Parwati Dewi , Kartono  , Mindyarto Budi Naini
Published: December 2022

Teachers have a very vital role in the availability of quality education. Various classroom practices used in interacting with students play an important role in understanding mathematical concepts and overall performance in mathematics. This study aims to produce a prototype of a valid and reliable mathematical test instrument for fourth grade elementary school students. This research is a development research. Item analysis of the test instrument using the Rasch model includes ten steps of research and development implementation strategy. Research respondents consist of 5 people on the expert test, 28 people on the small-scale test, and 86 people on the large-scale test. Data was collected by using interview, documentation and questionnaire techniques. Analysis conducted through quantitative and qualitative data. This test prototype development instrument produces a complete Mathematics test. The reliability tested includes inter-rater reliability, namely 0.613, Cronbach Alpha reliability for small- scale tests 0.81 and large-scale test results on Cronbach Alpha reliability 0.78. Based on the results of research and discussion, it can be concluded that the mathematical test instrument to measure non- routine problem solving skills developed is valid and reliable. Existing instruments can help teachers to assess the mathematics ability of fourth grade elementary school students.
The Effectiveness of E-Scrapbook Media Containing HOTS Questions on Science Learning Outcomes of Elementary School Students
Authors: Parmiti Desak Putu , Antara I Gede Wahyu Suwela , Wulandari I Gusti Ayu Agung Manik
Published: December 2022

The low ability of Indonesian students is related to the science learning process which has not fully provided opportunities for students to develop critical reasoning skills. This study aims to analyze the effectiveness of the E-Scrapbook media containing HOTS questions on the learning outcomes of fourth grade elementary school students. This research is an experimental research using a quantitative approach. The research design used in this study was a one group pre-test post-test design. The subjects of this study amounted to 30 elementary school fourth grade students. The effectiveness of using E-Scrapbook media with HOTS questions can be measured using the test method. The data analysis method used in this research is descriptive and inferential analysis. The analytical technique used to test the hypothesis is Paired Sample T-Test. Hypothesis testing using the help of the IBM SPSS Statistics for Windows version 21.0 program. There is a significant difference in the learning outcomes of students' science before and after participating in learning using the E-Scrapbook media containing HOTS-Based Questions. Thus, the application of E-Scrapbook media containing HOTS-based questions in the learning process effectively has an influence in improving student learning outcomes.
Management of Teacher Competency Development and Training in Improving Learning Quality
Authors: Hafizi  , Iim Wasliman  , Hanafiah  , Faiz Karim Fatkhullah
Published: December 2022

Management of teacher competency development and training in improving learning quality still has constraints on planning, organizing, implementing, and evaluating. This study aimed to describe the management of teacher competency development and training in improving learning quality. This qualitative study used case-study and descriptive methods. Data were collected using observations, interviews, and documentation then reduced, presented, and concluded. Based on the results, the management of teacher competency development and training in improving learning quality has been running to improve teacher competence making them have the structure, concept and scientific mindset to excel students through high learning quality even though it is not optimal due to constraints on the number of teachers, mismatches with qualifications, oriented to assignment scheduling, low HR quality, and low mastery of technology so that the proposed solution is to train teachers to have good competence, teach according to their own expertise, career development through functional roles based on credit score calculations, motivate teachers to continue study to a higher level, provide opportunities for teachers to participate in training, raise salaries, conduct clinical supervision to all teachers, and assess learning tools owned by teachers.
The Effectiveness of Adolescent Health Booklets to Strengthen the Character of Healthy Living Behavior of Junior High School Students
Authors: Desak Made Citrawathi  , Adnyana Putu Budi , Dewi Ni Putu Sri Ratna
Published: December 2022

Teenagers today have a very permissive nature related to sex before marriage, giving rise to various health problems in adolescents. This study aimed to analyze the effectiveness of using youth health booklets in education to strengthen the character of healthy living behaviors in junior high school students. This type of research is quasi-experimental, with the research design being a randomized posttest-only control group design. The research sample was students who took part in the extracurricular activities of the AIDS and Drug Concern Student Group (KSPAN), totaling 58 people. The data collection method uses self-assessment and observation, and self-assessment sheets. Objective tests and descriptions measure students' knowledge of healthy lifestyles through questionnaires. The results showed that students who demonstrated mastery of the concept of a healthy lifestyle were in the good and very good categories of 96.67%, showed student responses in the good (27%) and very good (73%) categories, and showed good behavior (40%) and very good by 60%. The use of youth health booklets can strengthen the healthy behavior of junior high school students. This research implies that students are expected to be able to improve the application of clean and healthy living behaviors in everyday life.
The Error in Ethnomathematics Exploration on Silat Perisai in Kampar District
Authors: Wahyuni Molli , Zulfah  , Astuti  , Zulhendri
Published: December 2022

Silat Perisai is one of the cultural heritages of the Pucuk Adat, Kampar Regency, Riau Province, which has existed since before the independence of the Republic of Indonesia and since 2017 has been included in the Intangible Cultural Heritage. This study aims to evaluate the results of ethnomathematical exploration carried out by students of Mathematics Education at Pahlawan Tuanku Tambusai University in the Silat Perisai movement. This research is a descriptive study with a case study on ethnomathematical exploration in Silat Perisai. Researchers observed the exploration process carried out by students, and evaluated reports on exploration results. Student errors are viewed from two aspects, namely aspects of mathematical concept errors and aspects of ethnomathematical exploration procedures errors. Before carrying out the exploration, the student group first validated the research instruments used, such as observation sheets and interviews. The results showed that the overall level of error in disclosing ethnomathematical concepts of flat shapes reached 50%, which means that students' errors in expressing concepts are still relatively moderate. The procedural error rate in ethnomathematical exploration reaches 40%.
SIMULASI SLOSHING 2D PADA KONTAINER SEGI EMPAT DENGAN METODE BEDA HINGGA BERBASIS STAGGERED GRID
Authors: Gunawan Kevin Boy , Mahmudah Rida SN , Khakim Azizul
Published: December 2022

Konsep dinamika fluida sering diaplikasikan dalam penyelesaian masalah di kehidupan sehari-hari, salah satunya gerakan sloshing pada kontainer yang berisi cairan. Penelitian ini bertujuan untuk menyusun sebuah code simulasi sloshing pada kontainer segi empat dengan menggunakan persamaan Navier-Stokes dua dimensi. Persamaan Navier-Stokes digridesaikan dengan ACM (Artificial Compressibility Method) dan  metode beda hingga berbasis staggered grid. ACM digunakan untuk memperoleh nilai dari komponen kecepatan dan tekanan sedangkan metode beda hingga digunakan dalam proses diskritisasi untuk melakukan pendekatan secara numerik. Karena dalam kasus ini melibatkan aliran multifase, maka metode lain seperti VOF (Volume of Fluid) juga digunakan untuk menentukan permukaan bebas fluida. Hasil penelitian ini divalidasi dengan simulasi pembanding menggunakan Ansys, dan menunjukkan kesesuaian yang cukup baik secara kuantitatif maupun kualitatif. Secara kuantitatif, nilai RMSE (Root Mean Square Error) relatif sangat kecil dengan RMSE maksimum adalah 0,235 dan RMSE minimum adalah 0,030. Sedangkan secara kualitatif, fase gerak antara kedua simulasi menunjukkan kesamaan. Dengan mengubah beberapa parameter simulasi, diketahui bahwa RMSE paling minimum diperoleh saat nilai dx=0,08 dan dy=0,0143.
PENGEMBANGAN SISTEM ANALISIS SENTIMEN UNTUK EVALUASI KINERJA DOSEN UNIVERSITAS PENDIDIKAN GANESHA DENGAN METODE NAÏVE BAYES
Authors: Sasmita Ade , Pradnyana Gede Aditra , Divayana Dewa Gede Hendra
Published: December 2022

AbstrakPenilaian atau evaluasi dosen dapat dilakukan dengan pengisian angket penilaian oleh mahasiswa. Penilaian yang diberikan mahasiswa dapat memberikan umpan balik dan rekomendasi perbaikan terkait proses kegiatan pembelajaran di universitas. Universitas Pendidikan Ganesha menyediakan angket dosen yang diberikan oleh mahasiswa satu kali setiap semesternya melalui Sistem Informasi Akademik. Saat ini data angket tersebut belum diolah dengan menggunakan teknologi pengklasifikasian analisis data. Data analisis tersebut nantinya dapat dimanfaatkan untuk mendukung hasil evaluasi kinerja dari dosen. Pengelolaan data tersebut dapat dilakukan dengan menggunakan Sistem Analisis Sentimen dengan metode Naïve Bayes. Data angket akan diklasifikasikan ke dalam 2 (dua) kelas, yaitu positif dan negatif. Data tersebut akan dievaluasi menggunakan k-fold cross validation dan confushion mastrix. Hasil evaluasi menunjukkan sistem mampu memprediksi kelas sentimen pada kritik dan saran mahasiswa dengan rata-rata precision sebesar 90.84%, recall sebesar 95.73%, accuracy sebesar 90.6% dan f-measure sebesar 93.22%. Kata kunci: Sistem Analisis Sentimen, Naïve Bayes, Angket Mahasiswa, K-Fold Cross Validation, Confushion Matrix.
Antidepressant-Like Activity and Physicochemical Analysis of Essential Oils from Michelia alba and Plumeria alba Flowers
Authors: Nayaka Ni Made Dwi Mara Widyani , Swari Ni Luh Putu , Widnyani Dewa Ayu Sri Bintang , Sukmayanti Ni Kadek , Yuda Putu Era Sandhi Kusuma , Wardani I Gusti Ayu Agung Kusuma , Sanjaya Dwi Arymbhi
Published: December 2022

Depression is a mental disorder with an increased prevalence. Other than conventional antidepressants, essential oils have been used in aromatherapy as a complementary and alternative medicine to reduce depression. In the current study, the antidepressant-like activity of the inhalation of essential oils from Michelia alba (MAEO) and Plumeria alba (PAEO) flowers was analyzed using the forced swim test. The immobility time of mice from tested groups was evaluated statistically by the non-parametric Kruskal Wallis test, followed by the Mann Whitney post hoc test. Also, the characterization of both essential oils was determined by refractive index, solubility, and Gas Chromatography-Mass Spectrophotometry (GC-MS) analysis. PAEO showed stronger antidepressant-like activity than MAEO (p<0.05) and it was equal to the positive control (essential oil of Lavandula angustifolia) (p>0.05). The GC-MS analysis revealed some calming agents in MAEO and PAEO such as linalool, linalyl acetate, phenylethyl alcohol, and methyl anthranilate.
Efektivitas Karbon Aktif Eceng Gondok (Eichornia crassipes) Pada Pengolahan Limbah Cair Tempe
Authors: Cundari Lia , Suhendra Ahmad Adi , Indahsari Siti Rachmi , Asnari Muhammad , Afrah Bazlina Dawami , Gunawan Agung , Alfatih Muhammad Ma'ruf
Published: December 2022

Limbah cair tempe berwarna kecokelatan yang berarti memiliki kekeruhan tinggi sehingga apabila langsung dibuang ke badan air akan merusak lingkungan. Penelitian ini bertujuan untuk menganalisis efektivitas karbon aktif eceng gondok (Eichornia crassipes) pada pengolahan limbah cair tempe: penyisihan COD, TSS, kekeruhan dan isotherm adsorpsi. Limbah cair dari industri tempe dan pertumbuhan eceng gondok (Eichornia crassipes) yang sangat cepat. Limbah cair tempe yang dihasilkan oleh pengrajin memiliki kepekatan yang tinggi, bersifat asam, dan bau khas yang menyengat. Penelitian dilakukan secara batch dalam skala laboratorium dengan memvariasikan dosis adsorben (1, 3, 5 gr). Analisis terhadap nilai COD, TSS, kekeruhan dan pH dilakukan terhadap sampel awal dan setelah proses adsorpsi. Data penelitian digunakan untuk menghitung persentase penyerapan dari adsorben dan isotherm adsorpsi yang berlangsung. Hasil penelitian menunjukkan bahwa karbon aktif eceng gondok mampu menurunkan 26% COD, 73% TSS, dan 81% kekeruhan. Kondisi limbah tempe masih berada pada rentang pH asam yaitu berkisar antara 4,21-4,59 di semua variasi dosis dan waktu. Proses adsorpsi pada pengolahan limbah cair tempe ini mengikuti model isotherm Langmuir dengan kapasitas adsorpsi maksimum sebesar 1,98-12,3 mg/g. Hal ini membuktikan bahwa karbon aktif eceng gondok dapat menjadi alternatif adsorben dalam pengolahan limbah cair tempe.
Uji Ekstrak Daun Cemcem Dalam Menghambat Pertumbuhan Bakteri Phorphyromonas Gingivalis
Authors: Bekti Heri Setiyo , Dharmawati I Gusti Agung Ayu , Habibah Nur
Published: December 2022

Cemcem atau Spondias pinnata (L.f) Kurz merupakan tanaman yang banyak digunakan oleh masyarakat Bali sebagai obat tradisional secara turun temurun. Beberapa penelitian telah dilakukan dan didapatkan bahwa ekstrak daun Cemcem memiliki aktivitas antibakteri. P. gingivalis merupakan salah satu penyebab periodontitis. Periodontitis merupakan penyakit gigi dan mulut yang banyak dialami oleh masyarakat Indonesia. Tujuan dari penelitian ini adalah untuk mengetahui kandungan senyawa bioaktif dan daya hambat ekstrak etanol daun Cemcem terhadap pertumbuhan P. gingivalis. Untuk mengetahui kandungan senyawa bioaktif dilakukan uji terhadap alkaloid, flavonoid, terpenoid, steroid, dan tannin. Uji daya hambat ekstrak etanol daun Cemcem dilakukan menggunakan metode difusi cakram dengan kontrol positif yaitu chlorhexidine 2%, kontrol negatif yaitu etanol, serta dua konsentrasi ekstrak yaitu 60% dan 80%. Dari hasil penelitian diperoleh bahwa ekstrak etanol daun Cemcem mengandung senyawa alkaloid, flavonoid, steroid, dan tannin. Zona hambat yang terbentuk memilki perbedaan bermakna antara ketiga perlakuan dan masuk dalam kategori kuat.
PENERAPAN FMEA DAN FUZZY FMEA DALAM PENILAIAN RISIKO LEAN WASTE DI INDUSTRI MANUFAKTUR
Authors: Hartanti Lusia Permata Sari , Mulyono Julius , Mayang Virarey
Published: December 2022

Evaluasi dan perbaikan secara berkelanjutan perlu dilakukan industri manufaktur untuk memaksimalkan hasil produksi. Salah satu yang menjadi bahan evaluasi adalah kemungkinan terjadinya permasalahan akibat pemborosan (waste) sepanjang value stream. Hal ini dapat dieliminasi melalui pendekatan lean manufacturing (LM) untuk mengetahui waste, menentukan potential cause dari waste, hingga dapat merekomendasikan perbaikan pada proses produksi. PT XY yang merupakan perusahaan yang mengolah kawat dan turunannya berupa paku, mur, baut, dan bendrat. Tujuan dari penelitian ini adalah mengetahui potential cause yang kritis dari waste pada proses produksi paku menggunakan FMEA dan fuzzy FMEA dan menentukan usulan perbaikan. Dua potential cause yang kritis dan mendesak untuk ditindaklanjuti adalah skill penanganan mesin dari operator yang rendah karena kurangnya pelatihan berkala dan penegasan Standard Operating Procedure (SOP),  dan  mesin digunakan merupakan mesin yang lama.  Usulan perbaikan untuk menanggani potential cause  adalah dengan mengadakan pelatihan dan penegasan pelaksanaan SOP dan perbaikan sistem pemeliharaan mesin.
PENAMBAHAN TEPUNG TEMPE DAN EKSTRAK WORTEL PROSES PEMBUATAN MIE BERKUALITAS
Authors: Maryam Siti
Published: December 2022

Mie umumnya terbuat dari tepung terigu, mengandung karbohidrat tinggi dibandingkan lemak maupun protein, sehingga diperlukan substitusi tepung tempe dan ekstrak wortel pada proses pembuatannya. Penelitian ini bertujuan untuk mengatahui karakterisasi nilai gizi pada mie kering tersubstitusi tepung tempe dan ekstrak wortel, meliputi kadar abu, serat, karbohidrat, lemak, protein dan air serta kalori. Pada penelitian ini terdapat 4 jenis komposisi mie, yaitu kontrol (Mie I) dan mie subtitusi dengan perbandingan tepung terigu, tepung tempe dan ekstrak wortel secara berurut yaitu 50:30:20 (Mie II); 50:25:25 (Mie III); dan 50:20:30 (Mie IV). Hasil penelitian menyatakan bahwa mie subtitusi memberikan penurunan pada karbohidrat dan kenaikan terhadap kadar protein, lemak, serat kasar, serta abu. Mie yang memberikan komponen gizi terbaik adalah mie III dengan kadar air (10,58 %), abu (2,99 %), protein (24,22 %), lemak (12,16 %), karbohidrat (50,63%), serat kasar (7,66 %) dan 408,89 kalori.
Practitioners’ Perceptions of Play-Based Pedagogy on the Holistic Development of Young Children
Authors: Ntshangase Nonhlanhla , Venketsamy Roy
Published: December 2022

South Africa has made remarkable progress in trying to improve early childhood education by introducing the National Curriculum Framework (NCF) in 2015. The NCF encourages practitioners to engage young children in play-based activities to improve their physical, social, emotional, and cognitive development, as core developmental skills. The main objective of this study was to explore practitioners’ perceptions of play-based pedagogy on the holistic development of young children. The qualitative approach was used to collect information through semi-structured interviews and lesson observations from five participants in the Mpumalanga Province. This study found that despite the Department of Basic Education mandating the implementation of play-based pedagogy in early childhood centers through the National Curriculum Framework challenges are experienced by practitioners. Practitioners had a good understanding of play-based pedagogy and play-based teaching and learning, but they needed continuous professional development and support to implement it in classrooms
PEMETAAN PERMUKAAN DASAR PERAIRAN DANAU TOBA DESA SIBAGANDING KECAMATAN GIRSANG SIPANGAN BOLON MENGGUNAKAN PERANGKAT SONAR
Authors: M Manalu Friska , Hutahaean Juniar
Published: December 2022

Penelitian ini bertujuan untuk memberikan informasi kedalaman perairan di daerah Sibaganding kepada masyarakat serta hasil visualisasi topografi kedalaman perairan. Teknik pengambilan data menggunakan sensor sonar Garmin Aquamap 80XS diletakkan di lambung kapal hingga mengenai air dan menentukan lintasan yang akan diteliti. GPS dipasang untuk menerima sinyal, tidak boleh terhalang, dan bekerja pada ruangan terbuka. GPS bekerja pada referensi waktu sangat teliti yang memancarkan data menunjukkan lokasi dan waktu. Pada saat kapal berjalan, sinyal pulsa yang dipancarkan oleh radar akan diterima oleh transduser, keluarannya akan diproses untuk tampilan pada layar. Hasil penelitian menunjukkan bahwa dari lintang 98,936 sampai lintang 98,934 dengan jarak 3,6 meter dari Pantai Bebas termasuk perairan dangkal karena mempunyai kedalaman 50 meter sampai 200 meter. Dengan jarak 6 meter dari pinggir Pantai Bebas posisi lintang 98,93 mempunyai kedalaman 572 meter. Posisi lintang 98,924 kedalaman Sibaganding kembali dangkal dengan kedalaman 200 meter. Kemudian bergerak 2 meter dengan posisi lintang 98,922 kedalaman di daerah Sibaganding 289 meter. Posisi bujur 2,678 sampai bujur 2,688 adalah titik terdalam dari kedalaman perairan di daerah Sibaganding, pada posisi bujur 2,682 dengan kedalaman 686 meter.
PENGARUH ABU KULIT KAKAO DAN ABU BAMBU TERHADAP DAYA SERAP AIR DAN KUAT TEKAN PAVING BLOCK
Authors: Mariati Situmorang Leli , Sirait Ratni , Halim Daulay Abdul
Published: December 2022

Penelitian ini memiliki tujuan ingin mengetahui pengaruh penambahan abu kulit kakao serta abu bambu terhadap densitas, daya serap air, kuat tekan, dan kuat lentur pada pembuatan paving block, serta mengetahui komposisi penambahan abu kulit kakao dan abu bambu yang paling optimal. Pembuatan paving block menggunakan bahan dasar abu kulit kakao, abu bambu, semen, pasir, dan air dengan variasi persentase yaitu: 0% : 20% : 20% : 60%, 5% : 15% : 20% : 60%, 10% : 10% : 20% : 60%, 15% : 5% : 20% : 60%, 20% : 0% : 20% : 60% dan digunakan FAS (Faktor Air Semen) sebesar 0,5 pada seluruh alterasi. Waktu penjemuran selama 28 hari. Karekteristik paving block yang diteliti antara lain: karekterisasi fisis serta karekterisasi mekanis. Hasil riset menampilkana terdapatnya pengaruh penambahan abu kulit kakao dan abu bambu terhadap densitas yang mengalami kenaikan dan nilai daya serap air mengalami penurunan. Dengan bertambahnya abu kulit kakao maka nilai kuat tekan dan kuat lentur mengalami kenaikan. Komposisi yang optimum adalah sampel dengan variasi 20% : 0% : 20% : 60%. Bersuber pada hasil penelitian yang di lakukan sampel tersebut telah penuhi ketentuan kualitas pada paving block yang di tetapkan oleh SNI 03-0691-1996 yang dapat diaplikan untuk penggunaan taman.
2D Resistivity Method to Determine the Groundwater Zone for Agricultural use in Perlis, Malaysia
Authors: Kadri Muhammad
Published: December 2022

The efficiency of the use of water in Malaysia is very low ( 40  to 50 percent) and in order to take the advantage from during floody the irrigation system designed as open system. In this study, groundwater is suggested to supplement as an alternative source of water for irrigation. In Malaysia only less than 2% of the present water used is developed from groundwater. In order to determine the existence of usable groundwater, 2D resistivity imaging is used. This method is the most commonly method that been used for groundwater exploration. The groundwater found is used for irrigation purposes. The arrays used in this study are Wenner Schlumberger and Pole dipole. The results of the study showed that there is an aquifer. The water filled cavity occurred in an isolated manner at an approximate depth of 7.7 m. It was further observed that the cavity did not allow the harnessing of this resource to the fullest capacity. At a depth of 5 m there is bedrock and from a depth of 27 to 30 m there is a fractured zone. This is indicating that fractured zone in this area has occurrence of groundwater. Groundwater is already detectable at a depth of 15 to 18 meters.
ANALISIS RESISTIVITAS BATUAN DAN FLUIDA DIBAWAH PERMUKAAN DENGAN METODE GEOLISTRIK SCHLUMBERGER DI DAERAH PANAS BUMI DESA HUTA BARU SIPIROK TAPANULI SELATAN
Authors: Harefa Envilwan Berkat , Simamora Pintor
Published: December 2022

Penelitian ini bertujuan untuk menentukan penyebaran batuan dan fluida yang terdapat di bawah permukaan daerah potensi panas bumi di desa Huta Baru kecamatan Sipirok kabupaten Tapanuli Selatan berdasarkan analisa nilai resistivitas. Penelitian dilakukan dengan menggunakan metode geolistrik schlumberger, didasari dengan hukum Ohm untuk mengetahui nilai resistivitas jenis perlapisan batuan pada tiap lapisan permukaan bumi. Dengan menginjeksikan arus melalui dua elektroda arus maka beda potensial yang muncul dapat terukur dari elektroda potensial. Data pengukuran di lapangan berupa beda potensial dan arus dapat digunakan untuk menghitung harga resistivitas semu (Apprent Resistivity) yang diperoleh dengan alat geolistrik (Resistivity meter), ARES-G4 v4.7 SN: 0609135 (Autematic Resistivity System). Kemudian data yang diperoleh dibuat gambar model penampang dua dimensi dengan menggunakan software Res2Dinv untuk menampilkan penampang kontur nilai resistivitas perlapisan batuan. Hasil penelitian geolistrik menunjukkan bahwa daerah penelitian  memiliki nilai resistivitas yang berbeda-beda yang berkisar antara 4,72 m hingga 167 m. Pola penyebaran fluida geothermal pada daerah penelitian tersebar secara lateral, dimana lapisan pasiran sebagai zona konduktif dan lapisan tanah lanauan sebagai lapisan penutupnya.
PROGRAM LIFELONG LEARNING MERDEKA BELAJAR EDUKASI KOGNITIF MEWUJUDKAN SDGS GOAL 4 GUNA MENINGKATKAN KUALITAS SDM DI SLB MEDAN
Authors:   Universitas Prima Indonesia, Pardede Oktaviandi , Manalu Ranto ,   Universitas Prima Indonesia, Salawajo Diwehati ,   Universitas Prima Indonesia, Gulo Sapriliyani ,   Universitas Prima Indonesia, Sidebang Nur Indah ,   Universitas Prima Indonesia, Siagian Tabas ,   Universitas Prima Indonesia
Published: December 2022

Lifelong Learning can be experienced by every learning community. Instilling the values of academic education with the aim of improving the quality of Human Resources can trigger schools to seek to optimize innovative learning. Freedom to learn cognitive education as a reference for lifelong learning programs seeks to realize inclusive and equitable quality education. It is believed that the Sustainable Development Goals (SDGs) that spur Indonesia's human development index need to be carried out at the Markus Medan Special School. This program is conducted for Markus SLB students for 1.5 months. The method used is participatory and experimental. During its implementation, students participate in building learning activities, so that data analysis is carried out qualitatively and quantitatively. The collected data is processed interactively and continuously until the data is saturated. The data are also interpreted descriptively through quantitative data measures. The results show that Markus Special School students can participate in cognitive education learning. Continuously, student learning products always influence their learning motivation, especially the results of drawing and motor skills of students. The experimental results showed a significant difference before and after experiencing cognitive education learning activities. As many as 60% of students get test scores above average.
ANALISIS MUATAN HIGER ORDER THINKING SKILLS (HOTS) DALAM BUKU SISWA MATA PELAJARAN IPAS
Authors:   STKIP Al Maksum Langkat, Syafitri Anis , Riskyka Riskyka ,   STKIP Al Maksum Langkat, Anggraini Dini Puji ,   STKIP Al Maksum Langkat
Published: December 2022

Learning outcomes in the independent curriculum in Natural and Social Sciences (IPAS) Phase B (for grades III and IV SD/MI/Package A) require that the learning carried out must be able to stimulate students to think at higher levels (HOTS ). This study discusses the analysis of HOTS content contained in IV grade IPAS textbooks for students. This research is a descriptive quantitative research. Data was collected using literature study techniques, documents, and questionnaires. Then, the percentage value of the HOTS load in the book by the data was calculated. The results obtained are interpreted to see the measurable level of thinking. There are 24 topics discussed and grouped into 8 chapters. Based on the results of the analysis of material content, creating (C6) around 12%, evaluating (C5) 12%, and analyzing (C4) 76%. While the items in the student's book, out of 33 questions scattered in the book, were found to be 12% at the C6 and C5, 73% at the C4, and 3% is C2. Overall, 98% content of the book is already contain HOTS. Based on the results, it can be assumed that the book is good for stimulating students to think at higher levels.
ANALISIS PERILAKU BULLYING PADA SISWA KELAS V DI SEKOLAH DASAR JAHARUN A
Authors:   Universitas Negeri Medan, Saragih Cindi Safitra , Ndona Yakobus ,   Universitas Negeri Medan, Saragi Daulat ,   Universitas Negeri Medan
Published: December 2022

Bullying is long-term physical and psychological violence perpetrated by a person or group against someone who is unable to defend himself. This study aims to describe Bullying behavior that occurs in fifth grade students at SDN 101964 Jaharun A. This study looks at the types of Bullying that have been carried out by students. The method used is descriptive qualitative with data collection techniques through 3 ways,: observation, interviews and documentation. The results showed that the fifth grade students had been doing Bullying behavior. The behavior is carried out in two types: verbal and physical. Verbally done by mocking parents' names, mocking friends' physical and friend's weaknesses. Meanwhile, physically, it is done by tripping feet, crossing hands and pushing friends.Bullying can be overcome by cooperation school with counseling service, strengthening religious and civic learning.
KORELASI TIPOLOGI BELAJAR DENGAN HASIL BELAJAR SISWA PADA MATA PELAJARAN FIQIH DI MTs MUHAMMADIYAH MARGOTOTO TAHUN PELAJARAN 2020/2021
Authors: Rohaniati Faiz , Iswati Iswati , Sarbini Sarbini
Published: December 2022

Hasil belajar yang baik pasti oleh bagaimana proses belajar siswa untuk menuju hasil prestasi yang baik. Proses atau tipologi belajar pasti berbeda-beda dan masing-masing gaya belajar memiliki nilai positif dan negatif begitu juga dengan dampaknya kepada orang tersebut dan disekelilingnya. Tipologi belajar dibagi menjadi tiga yaitu visual (melihat), auditorial (mendengar) dan kinestetik (terlibat langsung).Berdasarkan hasil penelitian yang dilakukan di MTs Muhammadiyah Margototo, dengan 50 siswa sebagai sampel diperoleh informasi bahwa sebanyak 15 siswa dengan tipologi belajar visual, 20 siswa dengan tipologi auditorial dan 15 siswa lainya tipe belajarnya adalah kinestetik. Tipilogi ,belajar mempengaruhi hasil belajar siswa, hal tersebut dapat dilihat dari kemajun siswa dalam bidang kemajuan nilai siswa, ketercapaian kemampuan siswa prestasi belajar siswa, serta siswa juga mampu untuk menyimpulkan beberapa hal terkait pembelajaran dan bagi guru manfaatnya menjadi mudah untuk mendeteksi kesalahan ketika siswa belajar.Berdasarkan hasil analisis terhadap data penelitian dari kedua variabel dapat disimpulkan bahwa ada hubungan yang signifikan antara tipologi belajar siswa terhadap hasil belajar siswa MTs Muhammadiyah Margototo, Lampung Timur. Hal ini dibuktikan dari hasil uji korelasi ProductMoment antara variabel X dengan variabel Y diperoleh rhitung 0,7 sedangkan tabel 0,279. dengan tingkat kepercayaan sesuai dengan data responden sebanyak 50 siswa. Maka dapat dilihat dalam tablenilair produk moment pada taraf 5 ſhitung 0,7 sedangkan label 0,279 dengan demikian hasil yang diperoleh signifikan. Hal ini berarti ada korelasi yang signifikan antara tipologi belajar siswa terhadap hasil belajar siswa MTs Muhammadiyah Margototo, Lampung Timur.
MODEL PEMBELAJARAN QUANTUM TEACHING PADA MATA PELAJARAN PENDIDIKAN AGAMA ISLAM
Authors: Indrawati Yuli Tri , Sujino Sujino , Dacholfany M. Ihsan
Published: December 2022

Penelitian ini bertujuan untuk mendiskripsikan dan menganalisis pelaksanaan model pembelajaraan Quantum Teaching untuk meningkatkan minat belajar. Latar belakang masalah penelitian ini adalah pembelajaran yang masih berorientasi pada guru, sedangkan siswa hanya sebagai objek ajar, hal ini dikarenakan guru dalam proses pembelajaran guru lebih banyak menggunakan metode ceramah. Oleh karena itu, pembelajaran berlangsung monoton membuat siswa bosan dan kurang bersemangat. Jenis penelitian ini merupakan penelitian studi kepustakaan. Pengumpulan data dilakukan dengan mempelajari sumber utama dari buku-buku yang membahas tentang metode pendidikan islam seperti buku yang berjudul Pendidikan Agama Islam, minat belajar, dan Quantum Teaching. Hasil penelitian menunjukkan: Penerapan model pembelajaran Quantum Teaching dapat meningkatkan minat belajar PAI.Model pembelajaran Quantum Teaching merupakan suatu model pembelajaran yang sangat membantu guru untuk meningkatkan minat belajar peserta didik dalam pengajarannya. Model pembelajaran Quantum Teaching juga memiliki kerangka rancangan yaitu dengan istilah dengan singkatan TANDUR (Tumbuhkan, Alami, Namai, Demonstrasikan, Ulangi, Rayakan). Dengan diterapkannya model pembelajaran Quantum Teaching ini akan mudah untuk meningkatkan minat belajar peserta didik dalam mata pelajaran PAI.
PENGARUH PENGEMBANGAN KECERDASAN SPIRITUAL TERHADAP DISIPLIN PESERTA DIDIK DI SMK MUHAMMADIYAH 1 METRO LAMPUNG
Authors: Saputri Juni Hari , Iswati Iswati , Cahyono Heri
Published: December 2022

Kecerdasan spiritual merupakan kemampuan yang sempurna dari perkembangan akal budi untuk mamaknai hidup. Sedangkan disiplin adalah suatu keadaan tertib dan teratur yang dimiliki, tanpa ada pelanggaran-pelanggaran yang merugikan baik secara langsung maupun tidak langsung. Dalam penelitian ini dilatar belakangi masalah yang sekarang terjadi dilingkungan sekolah maupun masyarakat pemberitaan media masa hampir setiap hari memberitkan kasus-kasus perilaku negatif remaja. Kecerdasan spiritual sangatlah penting untuk ditanamkan kepada anak-anak sedini mungkin agar nilai-nilai yang terkandung dalam spiritual dapat terinternalisasi baik dalam dirinya.Penelitian ini bertujuan untuk mengetahui pengaruh pengembangan kecerdasan spiritual terhadap disiplin peserta didik di sekolah SMK Muhammadiyah 1 Metro. Jenis penelitian ini adalah kuantitatif. Populasi dalam penelitian ini adalah kelas X dan XI di SMK Muhammadiyah 1 Metro yang berjumlah 345 peserta didik, pengambilan sampel dilakukan secara acak atau (random sampling). Dalam penelitian ini penulis menentukan sampel menggunakan rumus solvin denga taraf kesalahan 10% makaJumlah sampel yang didapat dalam penelitian ini adalah 78 sampel.Pengumpulan data dalam penelitian ini menggunakan kuesioner, wawancara, observasi, dan dokumentasi. Hasil analisis instrument dalam penelitian ini meliputi validitas dan reliabelitas. dari 15 butir soal variabel (X) dan (Y) menunjukan keseluruhan valid. Pengujian validitas menggunakan rumus Alpha Cronbach. Sedangkan pengujian yang digunakan untuk mengukur besarnya pengaruh variabel (X) dan (Y) menggukan Analisis Regresi Linier Sederhana.Hasil penelitian menunjukan bahwa kecerdasan spiritual memiliki pengaruh terhadap sikap disiplin peserta didik sebesar 70,1% hal ini membuktikan bahwa pengaruh kecerdasan spiritual terhadap disiplin peserta didik dalam kategori kuat. pada uji t nilai sig sebesar 0,000 <0,05. Hal tersebut juga didukung dengan nilai t hitung lebih besar dari t tabel. Nilai t hitung yang didapat 13.337 >1.995. Dengan demikian artinya hipotesis Ho ditolak dan Ha diterima, yang artinya ada pengaruh yang signifikan antara pengembangan kecerdasan spiritual terhadap disiplin peserta didik di SMK Muhammadiyah Metro Lampung.
Production and ecological characteristics of zooplankton in water bodies of lower reaches and delta parts of river Volga
Authors: Kraynova Anastasiya Valerievna , Melnik Irina , Vasil'eva Ekaterina
Published: December 2022

The article considers the figures of zooplankton communities’ abundance and productivity the most important data in assessment of the overall production potential of water bodies. The aim of the research was to examine the qualitative and quantitative compositions of zooplankters and to determine the food capacity of water bodies (the Volga river, its tributaries the Akhtuba, the Bakhtemir, the Buzan, the Kizan and the ecosite of Zaburunka). To achieve this aim, there were applied standard methods of hydrobiological and hydrochemical research. During the whole vegetation period the quality of water in all reservoirs met the fishery requirements. It has been found out that cladocerans (Cladocera) dominated in the Akhtuba river, and copepods (Copepoda) dominated in the Buzan river. In the Volga river, as well as in the Bakhtemir, the Kizan and the Zaburunka ecosite rotifers (Rotifera) dominating in spring were replaced by copepods (Copepoda) that remained dominant zooplankters until the end of the vegetation period. Taken all together, copepods are the dominant and subdominant species in all the examined water bodies throughout the whole vegetation period. For the most part, copepods are represented by predators, i. e. food competitors of fish. The dynamics of zooplankton population and biomass was seasonal: the figures increased mainly from spring to summer, gained their maximum in summer, and then decreased to the minimum in autumn. The Buzan river was an exception: the maximum indices were recorded there in spring, whilst in summer they decreased quite dramatically (population by 76%, biomass by 75%) and in autumn stabilized slightly. The maximum indices of food capacity (above average) were registered in summer in all the examined water bodies, except the Kizanriver where the food capacity remained minimal throughout the whole season.
Ecology, biology and nutrition of grayling (Thymallus thymallus Linnaeus, 1758) of river Sotka in Pinezhsky State Reserve
Authors: Dvoryankin Gennadiy , Lukina Valeriya Alexandrovna
Published: December 2022

European grayling Thymallus thymallus (Linnaeus, 1758) is the most valuable nonmigratory species in the ichthyofauna of the Pinezhsky Reserve. The grayling’s habitat inside the specially protected natural area is the Sotka river - the main attraction in the Reserve - flowing through its karst gorges. There are presented the results of comprehensive ichthyological study of grayling population in the Sotka river. Data on the ecology, biology, linearly-weight characteristics and age structure of the population are given. It was found out that grayling prefers the water areas with a mountainous (fast) flow, where it dominates among the fish species and forms a core of the local ichthyocenosis. Specific features of nutrition and age-related changes in the grayling diet have been studied. The 18 taxonomic groups of invertebrates, vertebrates and aquatic vegetation were registered in the food spectrum. The nutrition grayling base in the summer was presented by benthic larvae of amphibiotic insects, planktonic and nektonic organisms. The older species had a narrower range of nutrition based on ground-air insects, while the juveniles' diet was dominated by aquatic insect larvae. By the nature of nutrition, graylings in the river Sotka are euryphages, whose basic diet consists of arthropods. The multi-age structure and abundant population indicates prosperous state of these species.
Specific features of phytoplankton developing in Volga river general channel
Authors: Zimina T atyana Nikolaevna , Ardabyeva Alevtina Georgievna , Kotelnikov Andrey Vyacheslavovich
Published: December 2022

Studies of the qualitative diversity and quantitative composition of phytoplankton of the Volga river general channel were carried out at eight stations (Dubovka village, Kamenny Yar village, Staritsa village, Solenoe Zaymishche village, Tsagan-Aman village, Enotaevka village, Seroglazovka village, Zamyany village) in June and August 2019-2021. During the study period there were collected and processed 56 samples. In the course of studying the taxonomic composition of microalgae there were recorded 200 species in three years. The predominant group in the phytoplankton species composition was diatoms, which accounted for more than 50% of the total amount. Phytocenosis of the Volga river was supplemented by green algae and cyanobacteria. The other groups of algae (Dinophyta, Euglenophyta, Chrysophyta) were of the least importance for overall development. The abundance and biomass of phytoplankton of the Volga River root bed have been changing abruptly for three years, the highest indicators were registered in 2020 (abundance = 550.06 million cells/m3, biomass = 1144.010 mg/m3). Quantitative indicators of phytocenosis unevenly developed yearly from June to August. The abundance increased by August in 2019 and 2021 and decreased in 2020. Algocenosis biomass de-creased by the end of summer in 2019 and 2020 and increased in 2021. Quantitative changes of algae are given. There was determined predominance of diatoms. Cyanobacteria and green algae were important mainly due to their growing abundance. The study of river phytoplankton helped reveal the stations with the greatest development of microalgae: the villages of Staritsa, Seroglazovka, Solenoe Zaymishche and Zamyany.