bluuebunny/crossref_metadata_2025 huggingface dataset:
تقييم خبرات أولياء الأمور نحو عملية تشخيص اضطراب طيف التوحد وعلاقتها ببعض المتغيرات
Authors: حمدان محمد
Published: October 2019

الملخص:
أستاذ التربية الخاصة المساعد -قسم التربية الخاصة -كلية التربية والآداب- جامعة تبوك.
ملخص الدراسة: هدفت الدراسة إلى تقييم خبرات أولياء الأمور نحو عملية تشخيص اضطراب طيف التوحد، وتكونت عينة الدراسة من (72) أب وأم (24 أباً و48 أماً( من آباء وأمهات الأطفال ذوي اضطراب طيف التوحد الملتحقين في المراكز التي تقدم خدمات تربوية وتدريبية لاضطراب طيف التوحد والإعاقة في مدينة تبوك في المملكة العربية السعودية. ولتحقيق غرض الدراسة، قام الباحث ببناء استبانة تكونت من (39) فقرة تقيس خبرات أولياء الأمور نحو عملية التشخيص. وقد استخدم الباحث المنهج الوصفي المسحي. توصلت النتائج إلى أن تقييم خبرات أولياء الأمور نحو عملية التشخيص كان بدرجة متوسطة على البعد الكلي والأبعاد الفرعية لاستبانة الدراسة، كما توصلت إلى وجود فروق ذات دلالة إحصائية عند مستوى (0.01) في تقييم خبرات أولياء الأمور نحو عملية التشخيص ترجع إلى نوع المؤسسة التي أجري فيها التشخيص، لصالح المؤسسات الخاصة، وترجع أيضا إلى المستوى الإقتصادي، لصالح ذوي المستوى الاقتصادي المرتفع. وكانت من أهم التوصيات التي خرجت بها الدراسة، تقديم برامج الدعم لأولياء الأمور من قبل مؤسسات المجتمع المحلي التي تخدم الأفراد ذوي اضطراب طيف التوحد وتقدم لهم خدمات تشخيصية، مع ضرورة التركيز معهم على الجوانب والقضايا المتعلقة بعملية التشخيص سواء قبل أم أثناء أم بعد تلك العملية.
الكلمات الدالة: تقييم، خبرات، أولياء الأمور، تشخيص، اضطراب طيف التوحد.
ANALISIS KEMAMPUAN KOMUNIKASI MATEMATIS MAHASISWA PADA MATERI GEOMETRI SUDUT
Authors: Wantika Restu Ria
Published: October 2019

Purpose done research to know how mathematical communication ability of student either in writing or orally.The type of this research is descriptive research with qualitative approach. The subjects of the research are S-1 students of Mathematics Education Department of UNIPA Surabaya who are taking angle geometry courses that have good mathematical communication ability, good enough and less good that has been predicted by mathematics teacher in that class. Methods of data collection used were observations during learning, tests and in-depth interviews. Research instruments are diagnostic tests and interview guidelines. Data analysis in this research is descriptive qualitative analysis. The data analyzed are observational data during the learning, test results and in-depth interviews that are used to describe students' mathematical communication abilities in writing and orally. The results obtained from this study among others. The result of the analysis of students who have the ability of mathematical communication as a whole found that 28.65% are at level 4, where students are able to use math language (term, symbol, sign, and or representation) which is very effective, accurate and comprehensive. Furthermore, 21.87% of students are at level 3, where students are able to use math language (terms, symbols, signs, and or representations) that are less effective but accurate. So also students who have the ability of mathematical communication at level 2 is 19.78%. Where at level 2 students are able to use math language (terms, symbols, signs, and or representations) that are less effective. Furthermore 25% of students are at level 1, where students in using mathematics language (term, symbol, sign, and or representation) are inaccurate and ineffective. At level 0 where the student does not give answer as much as 4.67%.

Keywords: analysis of mathematical communication skills, angular geometry
PERAMALAN JUMLAH PENUMPANG KERETA API DI INDONESIA MENGGUNAKAN METODE EKSPONENTIAL SMOOTING
Authors: Oktaviarina Affiati
Published: October 2019

Kereta api merupakan salah satu jenis transportasi umum yang banyak diminati karena mempunyai banyak kelebihan antara lain harga tiket yang bervariasi dan relatif terjangkau oleh seluruh lapisan masyarakat banyak pilihan stasiun tujuan, jadwal keberangkatan dan jenis kelas gerbong yang tersedia. Pertumbuhan jumlah penumpang kereta api di Indonesia tahun 2006 sampai dengan 2017 merupakan  data time series yang menunjukkan tren naik dari tahun ke tahun. Double Eksponential Smoothing merupakan metode Eksponensial Smoothing terbaik untuk meramalkan data jumlah penumpang kereta api karena memliliki nilai SSE, MSE dan MAPE terkecil yaitu 71.686.012, 3.258.455,1 dan  0,05. Model Double Eksponensisal yang dihasilkan adalah  dan   dan . Hasil peramalan jumlah penumpang kereta api bulan Januari sampai dengan Desember 2018 menunjukkan adanya pertumbuhan dari bulan ke bulan sepanjang tahun.

Kata Kunci: eksponensial smoothing, double eksponential smoothing, MSE, SSE,  MAPE
KLASIFIKASI KENDARAAN BERMOTOR DENGAN MULTI KERNEL SUPPORT VECTOR MACHINE
Authors: Athoillah Muhammad
Published: October 2019

Since October 2017, Electronic automatic payments have been applied in all Indonesian toll roads. This payment system needes an extra system which is able to distinguish the types of motor vehicles that will enter the toll road due to the regulation itself which allow four-wheel or more vehicle to pass the toll road. This automatic system can be built by a classification algorithm, and one of the best is Support Vector Machine (SVM), in order to be able to classify non-linear separable data, SVM must be modified by giving kernel function on it. Furthermore, determining the approriate kernel for every classification problem is a fundamental step, and thatâ€™s obviously not easy, to solve that problem the researchers found a method that can make this kernel function more flexible, this method called Multi Kernel Learning (MKL). Main idea of this method is formulating some kernel function to be one kernel function. This framework is built an automatic system to classify the types of motor vehicles using Support Vector Machine modified using Multi Kernel Learning method. The experimental result shows that the system has a good average value of accuracy that is 84.60%, the average value of precision is 84.95% and also average value of recall is 84.60%.

Keyword: Kendaraan Bermotor, Klasifikasi, Multi Kernel, Support Vector Machine
PEMODELAN ANGKA PORI PADA STABILISASI TANAH GAMBUT
Authors: Pradana Mohammad Syaiful , Rohmah Awawin Mustana
Published: October 2019

Methods for improving peat soils to increase soil carrying capacity and reduce environmentally sound soil compressibility, namely stabilization of the peat layer. This method uses additives such as lime, fly ash and husks. This method has been developed based laboratory by civil engineers. However, it takes a relatively long time to find out the laboratory results. Therefore, research in the field of mathematical models for stabilization of peat soil was developed to predict the laboratory results. In this study, a mathematical model was derived one of the physical properties of peat soil, that is the pore number in stabilizing peat soil. The model is derived from fluid equations through porous media based on the principle of continuum and control volume. Furthermore, the model is completed using a finite difference method, the MacCormack scheme which consists of two steps, that are  predictor and corrector. After the model is simulated using matlab, it is known that there is a decrease in the soil pore value to a constant condition. This decrease in pore number is due to chemical reactions that occur by additives which make the soil pores smaller.

Keywords: pore number, maccormack, stabilization of peat soil
SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN SUPPLIER OBAT MENGGUNAKAN METODE WEIGHTED PRODUCT
Authors: Izzah Nailul , Ardianik Ardianik
Published: October 2019

The pharmacy is a place for distributing pharmaceutical supplies (medicines) to the public. As an agency that deals directly with customers and the number of suppliers who want to distribute their goods through the pharmacy, it is necessary to choose suppliers to establish good and profitable cooperation. This research was held at the Sulfa Sulfida Lamongan Pharmacy. The purpose of this study is to design and build a decision support system to select suppliers and their implementation. The method used in supplier selection is a weighted product, where suppliers will be assessed based on price criteria, payment tempo, timeliness of delivery, accuracy in number and service support. The results showed that the weighted product method can be implemented in the decision support system for selecting drug suppliers at the Sulfa Sulfida Lamongan Pharmacy. This is evidenced by the same value between the calculation of the system and manually or in the system.

Key Word: decision support system, supplier, weighted product
ANALISIS HASIL BELAJAR SISWA PADA MATERI PERBANDINGAN BERDASARKAN RANAH KOGNITIF REVISI TAKSONOMI BLOOM
Authors: Oktaviana Dwi , Prihatin Iwit
Published: October 2019

This research to classify the most comparison and described the results of the study grade VII B students SMP Koperasi Pontianak the academic year 2017/2018, based on cognitive Revised Bloomâ€™s Taxonomy.  Research method used is descriptive method with a qualitative approach. The subjects of this research were students of class VII B with high and low ability levels. The instruments in this research were daily test questions and student answer sheets on the subject of comparison and interview guidelines. Based on the results of research, obtained the percentage classifications about 20% for understand (C2) and 80% for apply (C3). Students' mathematics learning outcomes based on cognitive domains Revised Bloomâ€™s Taxonomy is that students are better able to solve problems with an understanding indicator of 60% than the problem with the indicator applying at 19.2%. Students with high ability to achieve indicators understand and apply while students with low abilities do not reach both indicators.

Key Word: learning outcomes, ability level, revised bloomâ€™s taxonomy, comparison
KEEFEKTIFAN PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) BERBANTUAN MEDIA KAHOOT UNTUK TOPIK PERSAMAAN KUADRAT PADA SISWA KELAS X SMA IPH 2 SURABAYA
Authors: Pello Alfa Charisma Sardjono
Published: October 2019

This research was conducted in class X of IPH 2 High School Surabaya. Researcher looked at several problems in the classroom, namely: the ability of students to understand less quadratic equations, lack of learning tools that are good for use in classrooms, activities in class that seem unattractive to improve learning motivation and the condition of students who are always individual in achieving success. To support this, this research is assisted by kahoot media. This research is a type of experiment that begins with the development of a 4D model device. Based on the problems above, the researcher helps the teacher by developing learning tools that are well validated. After that, the researcher will check the effectiveness of the device and then be implemented in the experimental class in order to obtain good learning outcomes. Descriptive data analysis results, obtained valid learning tools, good teacher ability, positive student response, and student activities that are in a good range. The results of inferential data analysis obtained an average increase in learning outcomes in the experimental class is greater than the average increase in learning outcomes in the control class. Learning tools in the form of RPP, LKS, and THB developed with the 4-D development model are valid tools to support learning effectively so that student learning outcomes are better than student learning outcomes that are taught using conventional learning.

Key Word: effectiveness, cooperative learning, teams games tournament, quadratic equations, kahoot media
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HIGHER ORDER THINGKING SKILLS (HOTS) MATEMATIS SISWA
Authors: Hodiyanto Hodiyanto
Published: October 2019

The general objective of this study was to determine the effect of the Problem Based Learning model on the students' Higher Order Thingking Skills (HOTS) in the material of system of two-variable linear equations in class X of SMA Negeri 9 Pontianak. The specific objectives are (1) to find out the mathematical Higher Order Thingking Skills (HOTS) before and after applied Problem Based Learning in the material of system of two variable linear equations in class X of SMA Negeri 9 Pontianak. (2) to determine the effect and influence of the Problem Based Learning model on students' Higher Order Thingking Skills (HOTS) in the material of system of two-variable linear equations in class X of SMA Negeri 9 Pontianak. The method used in this study is an experiment, with a Pre-Experimental Design research form. The design in this study is One Group Pretest-Posttest Design, which uses only one sample group given the initial test and final test after being given treatment. Based on the results of data analysis conducted on the findings in the field, the results of this study indicate that there is an influence of the Problem Based Learning model on mathematical students' Higher Order Thingking Skills (HOTS) in the two-variable linear equation system material in class X Pontianak State High School 9.

Keywords: Problem Based Learning, Higher Order Thingking Skills, experiment.
UPAYA MENINGKATKAN HASIL BELAJAR SISWA MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE TGT DENGAN MEDIA MONOPOLI PADA MATERI SISTEM PEMERINTAHAN PUSAT PEMBELAJARAN PKn KELAS IV SDN 1 JEMUNDO TAMAN
Authors: Tirtoni Feri , Fihayati Zuyyina
Published: October 2019

Pembelajaran bermakna dapat dilakukan dengan menggunakan model pembelajaran yang sesuai, serta media metode maupun strategi yang tepat. Melalui model, strategi dan metode serta media yang tepat dapat mendukung keberasilan proses belajar mengajar pada mata pelajaran Pendidikan Kewarganegaraan yang dilakukan oleh guru dan siswa. Namun, berdasarkan hasil observasi yang dilakukan di SDN 1 Jemundo Taman PBM masih bersifat konvensional dan bersifat teacher center. sehingga guru dalam hal ini harus inovatif dalam meningkatkan kualitas pembelajaran dikelas, seperti mengembangkan media pembelajaran. Salah satu media pembelajaran yang men arik dan mengatasi kejenuhan dan kepasifan siswa dalam kegiatan pembelajaran, khususnya pada PKn yaitu kegiatan pembelajaran melalui model Teams Games Tournament dengan media monopoli.

Penelitian ini adalah jenis Penelitian Tindakan Kelas, Dalam pengambilan dan pengumpulan data dilakukan metode Tes dengan Uji Validitas dan uji reliabilitas serta menggunakan Metode observasi, Penelitian Tindak Kelas (PTK) pada siswa kelas IV SDN 01 Jemundo Taman tahun ajaran 2015/2016 dilaksanakan dalam dua siklus. Setiap siklus terdiri atas empat tahapan yaitu (1) perencanaan, (2) pelaksanaan tindakan, (3) pengamatan dan (4) refleksi. Berdasarkan pembahasan dan hasil penelitian maka dapat disimpulkan sebagai berikut: Pembelajaran materi sistem pemerintahan pusat dengan model pembelajaran kooperatif tipe TGT dengan media game monopoli pada siswa kelas IV dapat meningkatkan hasil belajar PKn dengan peningkatan rata- rata dari siklus I sebesar (73,18) dan meningkat pada siklus II sebesar (76,25). Hasil penelitian ini diperkuat melalui temuan bahwa siswa sangat antusias dalam menerima materi dalam bentuk permainan kuis pada model pembelajaran TGT melalui media monopoly menjadikan mereka lebih aktif dan melatih kerja sama antar kelompok sehingga membuat pembelajaran menjadi bermakna
PENGEMBANGAN PENILAIAN BERBASIS PERMAINAN DI SEKOLAH DASAR
Authors: Kusuma Rendra Sakbana
Published: October 2019

Kreatif dalam penilaian sangat penting dalam pengembangan kompetensi guru sekolah dasar. Artikel ini menggambarkan tentang penelitian dan pengembangan penilaian autentik di sekolah dasar yang berbasis permainan pada pembelajaran tematik Kurikulum 2013. Penelitian dan pengembangan ini menggunakan metode Borg and Gall. Tahapan penelitian terdiri atas penelitian pendahuluan, perancangan, validasi ahli, dan ujicoba produk. Hasil akhir penelitian dan pengembangan ini adalah instrumen penilaian dan panduan penilaian bagi guru. Produk divalidasi dan diujicoba untuk mengetahui tingkat validitas, relibilitas, dan kepraktisan.  Data validasi diperoleh melalui wawancara dan angket yang diberikan kepada validator ahli, guru dan siswa sebagai pengguna. Artikel ini membahas kelebihan dan batasan produk pengembangan penilaian yang digunakan untuk mengevaluasi kegiatan belajar siswa sekolah dasar
DAMPAK PERILAKU BULLYYING TERHADAP KEHIDUPAN SOSIAL SISWA SEKOLAH DASAR DI KECAMATAN DRIYOREJO KABUPATEN GRESIK
Authors: Setiawan Fajar
Published: October 2019

Penelitian ini dilaksanakan dengan tujuan untuk mengetahui dampak kehidupan sosial yang diakibatkan dari perilaku bullying. Penelitian ini menggunakan pendekatan kualitatif dengan teknik pengumpulan data melalui wawancara, observasi, dan dokumentasi. Hasil penelitian menunjukkan jika korban bullying memiliki kecenderungan tidak dapat bersosialisasi dengan baik. Mereka menginginkan suasana yang tenang, untuk bertindak pun mereka kurang bersemangat dan percaya diri, dan tidak adanya teman sebaya yang mampu memahami kondisi dirinya. Lebih dari itu, kesadaran dan komitmen dari stakeholder atau pihak-pihak terkait, yakni kepala sekolah, wali murid, dan peserta didik, sangat diperlukan sebagai bentuk upaya mencegah tindakan bullying. Selain itu, pemerintah sebagai pembuat kebijakan harus membuat program-program, bias melalui pemberian reward dan punishment, agar mampu menekan atau membatasi agar tindakan bullying dapat diminimalisir. Sehingga dengan begitu, apa yang diinginkan pemerintah dalam memerangi tindakan bullying dapat sejalan dengan kondisi di lapangan.
PENINGKATAN KEMAMPUAN BERPIKIR KRITIS IPS DALAM PENERAPAN CHARACTER PROJECT CITIZEN (CPC) BERBASIS OUTDOOR STUDY (STUDI PADA SISWA KELAS IV SDN KAMULAN 02 KECAMATAN TALUN KABUPATEN BLITAR)
Authors: Oktaviarini Nourma , Jadmiko Rahmad Setyo
Published: October 2019

Character project citizen berbasis outdoor study adalah model dimana siswa belajar di luar ruangan dengan memanfaatkan lingkungan sekitar sebagai sumber belajar, untuk melihat peristiwa langsung di lapangan dengan tujuan untuk mengakrabkan siswa dengan lingkungannya. Tujuan penelitian ini adalah 1) penerapan character project berbasis outdoor study pada mata pelajaran IPS, 2) penerapan character project berbasis outdoor study dapat meningkatkan kemampuan berpikir kritis siswa kelas IV, 3) respon siswa kelas IV SDN terhadap pembelajaran character project citizen berbasis outdoor study. Penelitian ini menggunakan jenis penelitian tindakan kelas (PTK). Hasil penelitian menunjukkan penerapan pembelajaran character project citizen Berbasis Outdoor Study sesuai untuk diterapkan pada pembelajaran IPS denganmateri yang disesuaikan. Hal ini dibuktikan dengan meningkatnya kemampuan berpikir kritis siswa berdasarkan tes dari 3,55 pada siklus I menjadi 4,023 pada siklus II. Kemampuan berpikir kritis berdasarkan pengamatan  diperoleh skor 2074 dengan rata-rata skor 69,13 (kategori baik) pada siklus I menjadi 2396 dengan rata-rata skor 79,88 (80) kategori sangat baik. Kesimpulan penelitian ini adalah penerapan Problem Based Learning berbasis Outdoor Study dapat meningkatkan kemampuan berpikir kritis siswa kelas IV pada matapelajaran IPS
IMPLEMENTASI MODEL PEMBELAJARAN DIRECT LEARNING PADA MATA PELAJARAN BAHASA INDONESIA MATERI MENULIS CERITA GUNA MENINGKATKAN MINAT BELAJAR SISWA KELAS II SD N 3 KARANGRAJA
Authors: . Ponidi , Kristina Marilin
Published: October 2019

Rendahnya minat siswa terhadap pelajaran Bahasa Indonesia menyebabkan sebagian besar siswa kurang antusias mengikuti pelajaran yang disampaikan oleh guru, sehingga hasil belajar siswa rendah. Dengan kondisi tersebut guru berusaha memperbaiki pembelajaran dengan melaksanakan Penelitian Tindakan Kelas. Tujuan penelitian ini adalah untuk meningkatkan minat dan hasil belajar siswa pada mata pelajaran Bahasa Indonesia, materi pokok menulis cerita melalui pembelajaran Direct Learning di kelas II SDN 3 Karangraja. Subjek penelitian ini adalah  siswa kelas II SDN 3 Karangraja, yang berjumlah  25 siswa. Metode yang digunakan dalam perbaikan pembelajaran ini adalah metode Direct Learning. Data yang diperoleh melalui hasil evaluasi siswa dan pengamatan oleh observer. Penelitian ini dilaksanakan selama dua siklus. Hasil penelitian menunjukkan bahwa setiap siklus ada kemajuan terbukti pada siklus pertama minat peserta didik mencapai 13 siswa (52,00%) dalam pembelajaran dan peserta didik yang tuntas belajar pada perbaikan siklus I baru  13 siswa (52,0%). Pada perbaikan siklus II terjadi peningkatan minat yaitu sebanyak 23 peserta didik (92,00%)). sedangkan hasil belajar peserta didik semakin meningkat dengan ketuntasan belajar mencapai 23 siswa (92,0%). Hal ini membuktikan bahwa melalui metode Direct Learning siswa dapat memecahkan permasalahan sendiri dalam pelajaran Bahasa Indonesia, materi pokok menulis cerita, sehingga hasil belajar siswa meningkat. Kesimpulan melalui hasil penelitian ini menunjukkan bahwa metode Direct Learning dapat meningkatkan minta dan hasil belajar siswa
PENINGKATAN KEMAMPUAN MENULIS RINGKASAN ISI CERITA MELALUI MODEL PEMBELAJARAN CIRC DI MIN 1 PESISIR SELATAN
Authors: Frasandy Rendy Nugraha , Putri Surma
Published: October 2019

Pembelajaran Bahasa Indonesia pada kurikulum 2013 menggunakan teks atau wacana. Teks digunakan untuk keterampilan menulis dan membaca, sedangkan wacana digunakan untuk keterampilan menyimak dan berbicara. Salah satu keterampilan yang sulit dikuasai peserta didik yaitu keterampilan menulis khususnya menulis ringkasan isi cerita. Kemampuan menulis ringkasan isi cerita kelas V MIN 1 Pesisir Selatan belum mencapai KKM. Peserta didik belum mampu menentukan gagasan utama, penempatan ejaan, penggunaan tanda baca dan mengurutkan gagasan pokok pikiran tiap paragraf. Dari permasalahan diatas, peneliti menerapkan model yang sesuai karakteristik peserta didik yaitu model pembelajaran Cooperative Integrated Reading and Composition (CIRC). Model CIRC ini merupakan model yang komprehensif dalam membaca dan menulis pada kelas tinggi. Metode penelitian yang digunakan yaitu metode penelitian tindakan kelas dengan 2 siklus. Siklus I menunjukkan hasil rata-rata nilai peserta didik 68,61 dengan persentase ketuntasan 44,44%. Pada siklus II menunjukkan hasil rata-rata nilai peserta didik 81,94 dengan persentase ketuntasan 83,33%.
Keterampilan Presentasi Dengan Kemampuan Menjawab Tes Lisan Pada Mahasiswa PGSD UNRAM
Authors: Oktaviyanti Itsna
Published: October 2019

Tujuan penelitian ini adalah untuk mengetahui korelasi anatara kemampuan presentasi dengan kemampuan menjawab tes lisan pada mahasiswa PGSD UNRAM. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan penelitian kuantitatif dengan jenis penelitian korelasi. Populasi dalam penelitian ini adalah seluruh mahasiswa semester dua PGSD Universitas Mataram yang berjumlah 328 mahasiswa. Teknik pengambilan sampel yang dilakukan yaitu Simple Random Sampling dengan menggunakan rumus Slovin eror margin sebesar 5%, sehingga didapatkan sampel berjumalah 180. Teknik pengumulan data yang digunakan adalah tes lisan dan observasi. Uji prasyarat analisis digunakan uji normalitas. Teknik analisis data menggunakan analisis statistik deskriptif dan analisis korelasi Product Moment. Hasil uji statistik deskriptif pada keterampilan presentasi menunjukkan rerata 79,6. Sedangkan hasil uji statistik deskriptif kemampuan menjawab tes lisan menunjukkan rerata 80,9. Pengujian hipotesis koefisien korelasi kemampuan presentasi dengan kemampuan menjawab tes lisan dengan taraf signifikan 5% diperoleh rhitung > rtabel yaitu 0,452 > 0,159 dan nilai signifikan yang kurang dari 0,05 yaitu 0,00. Berdasarkan uji hipotesis tersebut menunjukkan adanya korelasi antara kemampuan presentasi dengan kemampuan menjawab tes lisan pada mahasiswa PGSD UNRAM. Sehingga Ha yang menyatakan bahwa ada korelasi antara kemampuan presentasi dengan kemampuan menjawab tes lisan pada mahasiswa PGSD UNRAM dapat diterima.
Analisis Keterampilan Bertanya Siswa Mata Pelajaran Tematik Tema 8 Subtema 3 Kelas V SDN 2 Mojoarum
Authors: Rahayuningsih Anik , Janattaka Nugraha
Published: October 2019

Tanya jawab adalah bagian utama dari kegiatan belajar siswa. Aktivitas mempertanyakan adalahmengajukan pertanyaan faktual atau hipotesis yang dimulai dengan bimbingan dari guru sampai siswamemahami diri mereka sendiri dan menjadi kegiatan kebiasaan. Penelitian ini bertujuan untukmendeskripsikan Keterampilan Bertanya Siswa di Lingkungan adalah Tema Teman Kita Sub SubtemaKonservasi Lingkungan Subjek Tematik dan menggambarkan hambatan yang dialami siswa kelas V SDNegeri Mojoarum Gondang Tulungagung 2 kelas 5 tahun 2018/2019. Metode yang digunakan dalampenelitian ini adalah pendekatan deskriptif kualitatif. Hasil dari penelitian ini adalah terdapat 7 siswa yangtelah memenuhi semua persyaratan indikator keterampilan bertanya, di sisi lain ada satu siswa yang hanyamencapai satu poin dari persyaratan, dua persyaratan indikator keterampilan bertanya dipenuhi oleh 6siswa, ada dua siswa yang tidak dapat memenuhi persyaratan indikator keterampilan bertanya. Rintanganyang dialami siswa belum dapat menggunakan bahasa Indonesia dengan benar, kurang fokus dalambertanya, kurang percaya diri, takut salah, malu ketika ditertawakan oleh teman mereka dan tidak mampumengangkat suara sehingga pertanyaan dapat menjangkau seluruh kelas. Kesimpulan dari penelitian iniadalah setiap siswa siswa kelas V Mojoarum memiliki keterampilan bertanya yang berbeda.
Osteonecrosis of the maxilaries associated with use of biphosphonate
Authors: Lacerda Jamille
Published: October 2019

Introduction: Bisphosphonates (BF) are inhibitors of reabsorption bone and are indicated for the treatment of Osteoporosis, Bone Metastasis, Multiple Myelomas and Paget's Disease. They are pyrophosphate analogs, which have high affinity for bone tissue inhibiting the action of osteoclasts. Although it has benefits for patients with of such diseases by assisting, for example, in the pain control prolonged use may lead to osteonecrosis of the jaws. Objectives: This article aims to review themedical literature on the use of bisphosbonates and dental surgeries. Materials and Methods: The indexed articles google academico and PubMed were scanned and the articles with the highest impact factor were selected. Results: We found 350 articles and selected 20 with the highest impact factor. Conclusion: Bisphosphonates are substances that can cause oteonecrosis in patients undergoing invasive dental treatments. KEY WORDS: Osteonecrosis, bisphosphonate, necrosis of the jaws
RELAÇÃO ENTRE DIABETES MELLITUS E O PROCESSO DE OSTEOINTEGRAÇÃO DE IMPLANTES DENTÁRIOS
Authors: Melo Antonio Renato , Gomes Carlos Eduardo , Campos Fabio Alexandre
Published: October 2019

introdução: Os implantes osseointegráveis permitiram um grande avanço da odontologia na reabilitação de áreas edêntulos, restabelecendo a função, estética e fonética. Quando a osseointegração está prejudicada ocorre uma falha na qualidade óssea e aposição de tecido fibroso cicatricial entre osso/implante, que pode resultar em mobilidade ou até mesmo a perda do implante. Fatores sistêmicos e locais podem interferir nos eventos celulares que atuam para que ela ocorra. A Diabetes Mellitus, é uma doença metabólica, que exerce uma influência negativa na formação e remodelação óssea. Objetivos: Trazer um levantamento bibliográfico sobre o processo de osseointegração versus a diabetes mellitus. Metodologia: Foi realizado uma varredura nos portais de indexação Web of Scienes e Scopus e foram encontrados 20.000 artigos referentes ao tema. Selecionou-se 50 artigos com maior fator de impacto e citscore. Conclusão: O diabetes não é uma contraindicação absoluta para a colocação de implantes dentários. O importante é o paciente a ser implantado nestas condições mantê-la controlada especialmente durante o período de osseointegração e que haja a administração de antibióticos antes e após a cirurgia e ainda a prescrição de bochechos de clorexidina a 0,12% durante duas semanas após o procedimento cirúrgico. Palavras Chaves: Osseointegração, Diabetes Mellitus. Implantes Osseointegráveis
THE GLOBALIZATION IMPACT ON CREATIVE INDUSTRIES AND CULTURAL HERITAGE: A CASE STUDY
Authors: Ciurea Cristian , Filip Florin Gheorghe
Published: October 2019

The influences of multiculturalism, globalization and technological revolution on art galleries, libraries, archives, museums have led to major changes in the way they select, preserve, promote and valorize their cultural goods. The digitization of cultural heritage collections and the evolution of information technologies (cloud computing, mobile devices, Internet of things) have determined the progress of virtual exhibitions as a means of promoting and valorizing the cultural heritage physical objects. New business models have been developed to harness the cultural heritage of libraries and museums in the context of globalization and technological revolution and the premises for the development of a new category of entrepreneurs have been created. Studies have been conducted to find the ways to increase the number of visitors of cultural institutions with the help of promoting tools, such as virtual exhibitions and dedicated mobile applications. The paper presents several methodological aspects and conclusions based on a practical example.
THE ASYMMETRIC EFFECT OF INSTITUTIONAL QUALITY ON CHINESE OUTWARD REAL ESTATE INVESTMENT
Authors: Zhang Jingjing , Lee Chyi Lin , Chan Nelson
Published: October 2019

Chinese outward investment in real estate (FDIRE) has increased tremendously in recent years. However, it has attracted little attention in the literature. This study aims to assess the asymmetric impact of institutional quality on Chinese outward FDIRE using an extended gravity model with a real estate institutional factor. Using the unique dataset of Chinese outward real estate investment collected from Real Capital Analytics, we identify the main determinants of China’s outward FDIRE. The results show that the established gravity model and real estate institutional factor together explain China’s outward FDIRE. Specifically, market size and cultural proximity have a positive influence on the FDIRE outflows from China. In addition, institutional factor, namely real estate transparency, has an acute impact on China’s outward FDIRE, whilst it is conditional on the market size of and the economic growth speed of a country, highlighting an asymmetric effect of institutional quality on Chinese outward FDIRE. The implications of the findings have also been discussed.
Polarized Line Formation in Arbitrary Strength Magnetic Fields: The Case of a Two-level Atom with Hyperfine Structure Splitting
Authors: Sampoorna M. , Nagendra K. N. , Sowmya K. , Stenflo J. O. , Anusha L. S.
Published: October 2019

Quantum interference effects, together with partial frequency redistribution (PFR) in line scattering, produce subtle signatures in the so-called Second Solar Spectrum (the linearly polarized spectrum of the Sun). These signatures are modified in the presence of arbitrary strength magnetic fields via the Hanle, Zeeman, and Paschen–Back effects. In the present paper we solve the problem of polarized line formation in a magnetized atmosphere taking into account scattering in a two-level atom with hyperfine structure splitting together with PFR. To this end we incorporate the collisionless PFR matrix derived in Sowmya et al. in the polarized transfer equation. We apply the scattering expansion method to solve this transfer equation. We study the combined effects of PFR and the Paschen–Back effect on polarized line profiles formed in an isothermal one-dimensional planar atmosphere. For this purpose, we consider the cases of D2 lines of Li i and Na i.
Lorentz Factor Evolution of an Expanding Jet Shell Observed in a Gamma-Ray Burst: Case Study of GRB 160625B
Authors: Lin Da-Bin , Lu Rui-Jing , Du Shen-Shi , Liu Tong , Wang Xiang-Gao , Liang En-Wei
Published: October 2019

The Lorentz factor of a relativistic jet and its evolution during the jet expansion are difficult to estimate, especially for the jets in gamma-ray bursts (GRBs). However, the Lorentz factor is related to the jet physics. Owing to the absorption of two-photon pair production (

), a high-energy spectral cutoff may appear in the radiation spectrum of GRBs. We search for such high-energy cutoffs in GRB 160625B, which is one of the brightest bursts in recent years. It is found that the high-energy spectral cutoff is obvious for the first pulse in the second emission episode of GRB 160625B (i.e., ∼186–192 s after the burst first trigger), which is smooth and well-shaped. Then, we estimate the Lorentz factor and radiation location of the jet shell associated with the first pulse in the second emission episode of GRB 160625B. It is found that the radiation location increases with time. In addition, the Lorentz factor remains almost constant during the expansion of the jet shell. This reveals that the magnetization of the jet is low or intermediate in the emission region, even though the jet could still be Poynting-flux-dominated at smaller radii to avoid a bright thermal component in the emission episode.
Ion and Electron Dynamics in the Presence of Mirror, Electromagnetic Ion Cyclotron, and Whistler Waves
Authors: Zhao Jinsong , Wang Tieyan , Shi Chen , Graham Daniel B. , Dunlop Malcolm W. , He Jiansen , Tsurutani Bruce T. , Wu Dejin
Published: October 2019

The wave–particle cyclotron interaction is a basic process in collisionless plasmas, which results in the redistribution of the energy between plasma waves and charged particles. This paper presents an event observation in order to explore the dynamics of charged particles and plasma waves, i.e., mirror, electromagnetic ion cyclotron (EMIC), and whistler waves, in the Earth’s magnetosheath. It shows that when ions have a high-speed streaming velocity parallel to the magnetic field, EMIC waves arise. We also find that the frequency distribution of nearly parallel and nearly antiparallel whistler waves depends on the parallel streaming velocity of electrons. Based on the linear kinetic theory and the fitting plasma parameters, we show that the differential flows among ion components can enhance the ion cyclotron anisotropy instability that is even stronger than the mirror instability. The differential electron flows induce an asymmetry of the growth rate of counter-propagating whistler waves in the electron cyclotron anisotropy instability. On the other hand, the low-frequency EMIC and transverse electromagnetic waves modulate the ion pitch angle distribution. Moreover, when charged particles flow across the magnetic field, both low- and high-energy electrons are deeply trapped by mirror waves. These results illustrate new features of the observed plasma waves and charged particles in the Earth’s magnetosheath, which could inspire improvement of the wave models therein.
On the Role of a Cavity in the Hypernova Ejecta of GRB 190114C
Authors: Ruffini R. , Fuksman J. D. Melon , Vereshchagin G. V.
Published: October 2019

Within the binary-driven hypernova I (BdHN I) scenario, the gamma-ray burst GRB190114C originates in a binary system composed of a massive carbon–oxygen core (COcore), and a binary neutron star (NS) companion. As the COcore undergoes a supernova explosion with the creation of a new neutron star (νNS), hypercritical accretion occurs on the companion binary neutron star until it exceeds the critical mass for gravitational collapse. The formation of a black hole (BH) captures 1057 baryons by enclosing them within its horizon, and thus a cavity of approximately 1011 cm is formed around it with initial density 10−7 g cm−3. A further depletion of baryons in the cavity originates from the expansion of the electron-positron-photon (e
+
e
−
γ) plasma formed at the collapse, reaching a density of 10−14 g cm−3 by the end of the interaction. It is demonstrated here using an analytical model complemented by a hydrodynamical numerical simulation that part of the e
+
e
−
γ plasma is reflected off the walls of the cavity. The consequent outflow and its observed properties are shown to coincide with the featureless emission occurring in a time interval of duration t
rf, measured in the rest frame of the source, between 11 and 20 s of the GBM observation. Moreover, similar features of the GRB light curve were previously observed in GRB 090926A and GRB 130427A, all belonging to the BdHN I class. This interpretation supports the general conceptual framework presented in R. Ruffini et al. and guarantees that a low baryon density is reached in the cavity, a necessary condition for the operation of the “inner engine” of the GRB presented in an accompanying article.
Tidal-locking-induced Stellar Rotation Dichotomy in the Open Cluster NGC 2287?
Authors: Sun Weijia , Li Chengyuan , Deng Licai , de Grijs Richard
Published: October 2019

Stars spend most of their lifetimes on the “main sequence” (MS) in the Hertzsprung–Russell diagram. The obvious double MSs seen in the equivalent color–magnitude diagrams characteristic of Milky Way open clusters (OCs) pose a fundamental challenge to our traditional understanding of star clusters as “single stellar populations.” The clear MS bifurcation of early-type stars with masses greater than ∼1.6 M
⊙ is thought to result from a range in the stellar rotation rates. However, direct evidence connecting double MSs to stellar rotation properties has yet to emerge. Here, we show through analysis of the projected stellar rotational velocities (v sin i, where i represents the star’s inclination angle) that the well-separated double MS in the young, ∼200 Myr old Milky Way OC NGC 2287 is tightly correlated with a dichotomous distribution of stellar rotation rates. We discuss whether our observations may reflect the effects of tidal locking affecting a fraction of the cluster’s member stars in stellar binary systems. We show that the slow rotators could potentially be initially rapidly rotating stars that have been slowed down by tidal locking by a low-mass-ratio companion in a cluster containing a large fraction of short-period, low-mass-ratio binaries. This demonstrates that stellar rotation drives the split MSs in young, ⪅300 Myr old star clusters. However, special conditions, e.g., as regards the mass-ratio distribution, might be required for this scenario to hold.
Cloud Atlas: Variability in and out of the Water Band in the Planetary-mass HD 203030B Points to Cloud Sedimentation in Low-gravity L Dwarfs
Authors: Miles-Páez Paulo A. , Metchev Stanimir , Apai Dániel , Zhou Yifan , Manjavacas Elena , Karalidi Theodora , Lew Ben W. P. , Burgasser Adam J. , Bedin Luigi R. , Cowan Nicolas , Lowrance Patrick J. , Marley Mark S. , Radigan Jacqueline , Schneider Glenn
Published: October 2019

We use the Wide Field Camera 3 on the Hubble Space Telescope to spectrophotometrically monitor the young L7.5 companion HD 203030B. Our time series reveal photometric variability at 1.27 and 1.39 μm on timescales compatible with rotation. We find a rotation period of

hr: comparable to those observed in other brown dwarfs and planetary-mass companions younger than 300 Myr. We measure variability amplitudes of 1.1% ± 0.3% (1.27 μm) and 1.7% ± 0.4% (1.39 μm), and a phase lag of 56° ± 28° between the two light curves. We attribute the difference in photometric amplitudes and phases to a patchy cloud layer that is sinking below the level where water vapor becomes opaque. HD 203030B and the few other known variable young late-L dwarfs are unlike warmer (earlier-type and/or older) L dwarfs, for which variability is much less wavelength-dependent across the 1.1–1.7 μm region. We further suggest that a sinking of the top-most cloud deck below the level where water or carbon monoxide gas become opaque may also explain the often enhanced variability amplitudes of even earlier-type low-gravity L dwarfs. Because these condensate and gas opacity levels are already well-differentiated in T dwarfs, we do not expect the same variability amplitude enhancement in young versus old T dwarfs.
First Subarcsecond Submillimeter-wave [C i] Image of 49 Ceti with ALMA
Authors: Higuchi Aya E. , Saigo Kazuya , Kobayashi Hiroshi , Iwasaki Kazunari , Momose Munetake , Lou Soon Kang , Sakai Nami , Kunitomo Masanobu , Ishihara Daisuke , Yamamoto Satoshi
Published: October 2019

We present the first subarcsecond images of 49 Ceti in the [C i] 3
P
1–3
P
0 emission and the 614 μm dust continuum emission observed with Atacama Large Millimeter/submillimeter Array (ALMA), as well as that in the CO(J = 3–2) emission prepared by using the ALMA archival data. The spatial distribution of the 614 μm dust continuum emission is found to have a broad-ring structure with a radius of about 100 au around the central star. A substantial amount of gas is also associated with 49 Ceti. The [C i] emission map shows two peaks inside the dust ring, and its overall extent is comparable to that of the dust continuum emission and the CO emission. We find that the [C i]/CO(J = 3–2) intensity ratio significantly varies along the major axis. The ratio takes the minimum value of 1.8 around the dust peak position, and increases inward and outward. The enhanced ratio around the central star (∼3) likely originates from the stellar UV radiation, while that in the outer disk (∼10) is from the interstellar UV radiation. Such complex distributions of the [C i] and CO(J = 3–2) emission will be key to understanding the origin of the gas in 49 Ceti, and will also provide a stringent constraint on physical and chemical models of gaseous debris disks.
Turbulence versus Fire-hose Instabilities: 3D Hybrid Expanding Box Simulations
Authors: Hellinger Petr , Matteini Lorenzo , Landi Simone , Franci Luca , Verdini Andrea , Papini Emanuele
Published: October 2019

The relationship between a decaying plasma turbulence and proton fire hose instabilities in a slowly expanding plasma is investigated using three-dimensional hybrid expanding box simulations. We impose an initial ambient magnetic field along the radial direction, and we start with an isotropic spectrum of large-scale, linearly polarized, random-phase Alfvénic fluctuations with zero cross-helicity. A turbulent cascade rapidly develops and leads to a weak proton heating that is not sufficient to overcome the expansion-driven perpendicular cooling. The plasma system eventually drives the parallel and oblique fire hose instabilities that generate quasi-monochromatic wave packets that reduce the proton temperature anisotropy. The fire hose wave activity has a low amplitude with wave vectors quasi-parallel/oblique with respect to the ambient magnetic field outside of the region dominated by the turbulent cascade and is discernible in one-dimensional power spectra taken only in the direction quasi-parallel/oblique with respect to the ambient magnetic field; at quasi-perpendicular angles the wave activity is hidden by the turbulent background. These waves are partly reabsorbed by protons and partly couple to and participate in the turbulent cascade. Their presence reduces kurtosis, a measure of intermittency, and the Shannon entropy, but increases the Jensen–Shannon complexity of magnetic fluctuations; these changes are weak and anisotropic with respect to the ambient magnetic field and it is not clear if they can be used to indirectly discern the presence of instability-driven waves.
In the Galactic Disk, Stellar [Fe/H] and Age Predict Orbits and Precise [X/Fe]
Authors: Ness M. K. , Johnston K. V. , Blancato K. , Rix H-W. , Beane A. , Bird J. C , Hawkins K.
Published: October 2019

We explore the structure of the element abundance–age–orbit distribution of the stars in the Milky Way’s low-α disk, by (re-)deriving precise [Fe/H], [X/Fe], and ages, along with orbits, for red clump stars from the apogee survey. There has been a long-standing theoretical expectation and observational evidence that metallicity ([Fe/H]) and age are informative about a star’s orbit, e.g., about its angular momentum and the corresponding mean Galactocentric distance or its vertical motion. Indeed, our analysis of the apogee data confirms that [Fe/H] or age alone can predict the stars’ orbits far less well than a combination of the two. Remarkably, we find and show explicitly that, for known [Fe/H] and age, the other abundances [X/Fe] of Galactic disk stars can be predicted well (on average to 0.02 dex) across a wide range of Galactocentric radii, and therefore provide little additional information, e.g., for predicting their orbit. While the age–abundance space for metal-poor stars and potentially for stars near the Galactic center is rich or complex, for the bulk of the Galaxy’s low-α disk it is simple: [Fe/H] and age contain most information, unless [X/Fe] can be measured to 0.02 or better. Consequently, we do not have the precision with current (and likely near-future) data to assign stars to their individual (coeval) birth clusters, from which the disk is presumably formed. We can, however, place strong constraints on future models of Galactic evolution, chemical enrichment, and mixing.
Bayesian Inference of High-density Nuclear Symmetry Energy from Radii of Canonical Neutron Stars
Authors: Xie Wen-Jie , Li Bao-An
Published: October 2019

The radius R
1.4 of neutron stars (NSs) with a mass of 1.4 M
⊙ has been extracted consistently in many recent studies in the literature. Using representative R
1.4 data, we infer high-density nuclear symmetry energy E
sym(ρ) and the associated nucleon specific energy E
0(ρ) in symmetric nuclear matter (SNM) within a Bayesian statistical approach using an explicitly isospin-dependent parametric equation of state (EOS) for nucleonic matter. We found the following. (1) The available astrophysical data can already significantly improve our current knowledge about the EOS in the density range of ρ
0 − 2.5ρ
0. In particular, the symmetry energy at twice the saturation density ρ
0 of nuclear matter is determined to be E
sym(2ρ
0)=

MeV at a 68% confidence level. (2) A precise measurement of R
1.4 alone with a 4% 1σ statistical error but no systematic error will not greatly improve the constraints on the EOS of dense neutron-rich nucleonic matter compared to what we extracted from using the available radius data. (3) The R
1.4 radius data and other general conditions, such as the observed NS maximum mass and causality condition, introduce strong correlations for the high-order EOS parameters. Consequently, the high-density behavior of E
sym(ρ) inferred depends strongly on how the high-density SNM EOS E
0(ρ) is parameterized, and vice versa. (4) The value of the observed maximum NS mass and whether it is used as a sharp cutoff for the minimum maximum mass or through a Gaussian distribution significantly affects the lower boundaries of both E
0(ρ) and E
sym(ρ) only at densities higher than about 2.5ρ
0.