bluuebunny/crossref_metadata_2025_split huggingface dataset:
Keefektifan Model Pembelajaran Index Card Match Terhadap Hasil Belajar Matematika Materi Kecepatan Kelas V SDN 4 Kemujan Kecamatan Karimunjawa Semester I Tahun Pelajaran 2019/2020
Authors: Sudarmaji S 
Published: September 2020

Masalah yang ingin dipecahkan dalam Penelitian Tindakan Kelas; ”Bagaimanakah keefektifan model pembelajaran Index Card Match terhadap hasil belajar Matematika materi kecepatan pada siswa kelas V SDN 4 Kemujan Kecamatan Karimunjawa semester I tahun pelajaran 2019/2020? Tujuan Penelitian Tindakan Kelas ini adalah untuk mengetahui keefektifan model pembelajaran Index Card Match terhadap hasil belajar Matematika pada siswa kelas V SDN 4 Kemujan Kecamatan Karimunjawa semester I tahun pelajaran 2019/2020. Penelitian dilaksanakan di SDN 4 Kemujan Kecamatan Karimunjawa Kabupaten Jepara semester I tahun pelajaran 2019/2020. Obyek penelitian peserta didik kelas V. Lokasi di SDN 4 Kemujan Kecamatan Karimunjawa Kabupaten Jepara, karena peneliti merupakan Kepala SDN 4 Kemujan. Pelaksanaan penelitian ini mengikuti model yang dikembangkan oleh Kemmis dan MC.Tanggart berupa siklus spiral yang terdiri dari 4 tahap: (1) perencanaan tindakan kelas, (2) pelaksanaan tindakan kelas, (3) observasi tindakan kelas, dan (4) refleksi, yang diikuti siklus spiral berikutnya. Penerapan model pembelajaran Index Card Match membawa dampak berupa meningkatnya hasil belajar dan prestasi belajar siswa. Peningkatan hasil belajar siswa dapat dilihat hasil pada prasiklus yang tuntas 10 siswa (52,63%) dan yang belum tuntas 9 siswa (47,37%). Nilai rata-rata kelas 65,79. siklus I pertemuan 1 yang tuntas 12 siswa (63,16%). Nilai rata-rata kelas 69,47. Siklus 1 pertemuan 2 terjadi peningkatan ketuntasan sebesar 10,52% dari 63,16% siklus I pertemuan 1 menjadi 73,68% siklus I pertemuan 2. Siswa yang tuntas 14 siswa (73,68%). Siklus II pertemuan 1 hasil prestasi belajar siswa meningkat 5,27% dari 73,68% siklus I pertemuan 2 menjadi 78,95% siklus II pertemuan 1. Siklus II pertemuan 2 hasil prestasi belajar siswa meningkat sebesar 15,79% dari 78,95% siklus II pertemuan 1 menjadi 94,74% siklus II pertemuan 2. Siswa yang tuntas 18 siswa ( 94,74%) dan yang belum tuntas 1 siswa ( 5,26%). Nilai rata -rata kelas 78,95.
Peningkatan Aktivitas dan Hasil Belajar Matematika Materi Barisan dan Deret Melalui Pendekatan SAVI Bagi Siswa Kelas XI IPS1 SMA Negeri 1 Tawangsari Semester 2 Tahun Pelajaran 2018/2019
Authors: Suratno . 
Published: September 2020

Penelitian ini merupakan Penelitian Tindakan Kelas, yang bertujuan untuk aktivitas dan hasil belajar melalui pendekatan pembelajaran Somatis, Auditori, Visual, Intelektual. Subyek penelitian adalah siswa kelas XI IPS1 SMA Negeri 1 Tawangsari semester 2 yang berjumlah 36 siswa. Teknik pengumpulan data dengan menggunakan metode tes tertulis, observasi, dokumentasi. Adapun prosedur penelitian dilakukan melalui dua siklus dan setiap siklus terdiri dari perencanaan, pelaksanaan, observasi dan refleksi. Hasil penelitian: (1) terjadi peningkatan aktivitas belajar siswa bila dibandingkan antara prasiklus yaitu nilai rata-rata 1,86 (kurang) di akhir siklus 2 menjadi 4,03 (baik); (2) terjadi peningkatan pencapaian ketuntasan belajar siswa bila dibandingkan antara prasiklus yaitu 6 siswa (25 %) di akhir siklus 2 menjadi 31 siswa (91,67 %) sehingga sudah mencapai tingkat ketuntasan sebagaimana telah ditetapkan yaitu ? 85%. Terjadi peningkatan pencapaian nilai rata-rata bila dibandingkan antara prasiklus 57,11 di akhir siklus 2 menjadi 83,61. Simpulan penelitian ini bahwa penerapan pendekatan SAVI dapat meningkatkan aktivitas siswa dan hasil belajar matematika materi barisan dan deret.
Information Algorithm for Non-Invasive Evaluation of Osteoresorbable Side Effects of Glucocorticosteroids in Patients with Ulcerative Colitis
Authors: Safronenko A. V. , Kosenko V. A. , Demidova A. A. , Demidov I. A. , Sukhorukova N. V. , Gantsgorn E. V. 
Published: September 2020

A study involving 45 patients with ulcerative colitis found that the activity of the Cathepsin K bone resorption marker measured by an enzyme-linked immunosorbent assay in gingival ﬂuid could be used as a non-invasive control over the development of steroid osteoporosis caused by systemic use of glucocorticoids. When the concentration of Cathepsin K in the gingival ﬂuid exceeded 3.7 pmol/L, the risk of developing osteoporosis in patients with ulcerative colitis taking glucocorticosteroids on a regular basis increased by 7.9 times with a diagnostic accuracy of 82.6% (p=0.002). As a result of the study, an effective method for non-invasive assessment of osteoresorbable side effects of glucocorticosteroids in autoimmune diseases was proposed.
Bioinformation Algorithm for Selecting a Method for Premedication of Patients with Arterial Hypertension with Amiodarone-Associated Thyrotoxicosis Type I during Neurosurgical Operations
Authors: Safronenko A. V. , Lepyavka S. V. , Demidova A. A. , Demidov S. I. , Nazheva M. I. , Krishtopa A. V. 
Published: September 2020

Signs associated with adverse cardiovascular reactions after surgery were established in 46 patients with arterial hypertension, cardiac arrhythmias and type I amiodarone-associated thyrotoxicosis. These signs included an increase in the circadian index above 1.52, the presence of pauses in the heart rate for more than 3 seconds, the number of group ventricular extrasystoles per day exceeding 30, an increase in LF/HF with RR-intervalometry more than 1.3. In order to reduce the risk of cardiac arrhythmias in the postoperative period, a premedication with long-acting benzodiazepines in combination with magnesium preparations over a prolonged course is recommended.
Aksiologi Pendidikan Islam (Penerapan Nilai-Nilai Aqidah Dalam Pembelajaran Anak Di Mi)
Authors: Sholihah Mar’atus , Aminullah Aminullah , Fadlillah Fadlillah 
Published: September 2020

Education is a powerful tool to change the world by changing the behavior of society to be better. In Islamic education, one most important thing is the education of faith or belief, because it all starts from it. Faith is the foundation of knowledge and value. Islam emphasizes how important it is to teach values to kids in primary school level and how important is the role of parents and teachers. This method is very essential to build strong values for kids so that those values which are taught from that age would last forever. This happens because kids have powerful memory to remember everything. This paper explaines the importance of teaching values to primary school students and the best methods to instill Islamic values related to “akidah” in age 7 – 13 years old by using axiology theory and trying to relate it to philosophy. Axiology is one of philosophy study which focuses on the theory of values. Its study contains about how to reach knowledge to get values in ethic, logic and aesthetic ways. The result of this paper explaines that there are some steps which can be used for teachers in primary school to educate students about values in general and about Islamic values which most of students have the foundation before from their parents.
Keywords: Islamic, education, values, primary school
Literasi Baru Sebagai Bentuk Penanaman Nilai-Nilai Karakter dalam Pembelajaran Bahasa Indonesia MI di Era Disrupsi
Authors: Mutmainah Siti 
Published: September 2020

Disruption is an era of massive changes in all areas of life as a result of a modern technology. The existence of digital technology support has provided many facilities and innovations obtained for education, services have become faster and more efficient and a wide range of connections. The negative impact also arises from the digitalization of the program, for example the role of humans has been largely taken over by robots or automotive machinery which causes more unemployment.
This reality is a big problem, therefore the government needs to answer the challenges of the industrial revolution 4.0, one of which is by providing new literacy reinforcement in the world of education. New literacy is a data on human resources technology or humanism which is a complement to the old literacy, which is read-write-archive.
The Effect Of Use Of Audio Visual Media On Results Of Study On Social Knowledge Science In Madrasah
Authors: Khoiriyah Siti , Sutomo Moh 
Published: September 2020

Social Sciences is an integration from various branches namely history, geography, economy, sociology and anthropology which are simplified and formulated for instructional purposes and completed with material and objectives so that they are easy to learn at the public/Islamic elementary school and public/Islamic junior high school levels. With the complexity of Social Sciences studies, effective and efficient media for learning activities are needed. So, it is very necessary for a teacher to use interesting media in the teaching and learning process. One of the interesting media can be used is audio-visual media as a means of motivating and increasing effectiveness and efficiency in achieving student learning outcomes.
The purpose of this study is to examine the influence of the use of audio-visual media on student learning outcomes in social studies subjects at the Madrasah Tsanawiyah ASHRI Jember in the academic year 2019/2020.
This study, used a quantitative approach with a quasi-experimental type of research, and applied a non-equivalent control group design. The population of this study was students of class VIII ASHRI Madrasah Jember. The research sample obtained through purposive sampling technique, which amounted to 74 students consisting of class VIII A as an experimental class and VIII B as a control class. Documentation in the form of post test scores was used as the data collection analysis. Analysis and test of hypotheses were done with Independent Sample T-Test and the assistance of the IBM SPSS 22.00 For Windows.
By using Independent Sample T-Test as the hypothesis testing, the results of this study indicated the significance of 0,000 (2-tailed). This showed that the significance value was under 0.05, so that the null hypothesis (H0) was rejected and the alternative hypothesis (Ha) was accepted. This means that there is a significant influence on the use of audio-visual learning media on the learning outcomes of Social Sciences subject at the Madrasah Tsanawiyah ASHRI Jember in the academic year 2019/2020
Obtaining and properties of CdB4O7 polycrystals, doped with Cr3+ions
Authors: ХАМАГАНОВА Т.Н. 
Published: September 2020

Впервые поликристаллические фазы Cd1-xB4O7 : xCr3+ (x = 0,03; 0,05 и 0,07) и исходная матрица CdB4O7 синтезированы высокотемпературными твердофазными реакциями при 850 °С. Методом РФА показано, что твердые растворы кристаллизуются в ромбической сингонии (пр. гр. Pbca). Методом ДСК определена температура плавления (Тпл. = 974 °С) бората Cd1-xB4O7 : 0.03 Cr3+. Построением кривых высвечивания в области 20–400 °С проведены термолюминесцентные исследования. Выявлен оптимальный состав люминофора Cd1-xB4O7 : 0.03 Cr3+ с максимальной интенсивностью свечения.
For the first time the polycrystalline phases Cd1-xB4O7 : x Cr3 + (x = 0.03; 0.05 and 0.07) and the initial CdB4O7 matrix were synthesized by high-temperature solid-state reactions at 850°C. The XRD method showed that solid solutions crystallize in rhombic system (sp. gr. Pbca). Using the DSC method, the melting point (Tm.p. = 974°С) of Cd1-xB4O7 : 0.03 Cr3 + borate was determined. Thermoluminescent studies were performed by plotting the emission curves in the range of 20–400°С. The optimal composition of the phosphor Cd1-xB4O7 : 0.03 Cr3 + with a maximum luminescence intensity was revealed.
Caracterización de la práctica de una profesora al implementar un diseño sobre la función exponencial que integra GeoGebra
Authors: Campo-Meneses Karen Gisel , Cruz Rojas Gilbert Andrés 
Published: September 2020

Este artículo reporta la caracterización de la práctica de enseñanza de una profesora cuando implementa un diseño de tareas sobre a la función exponencial que integra GeoGebra. Para la configuración del diseño de tareas y el análisis de la implementación, se tuvo en cuenta como aproximación teórica la Orquestación Instrumental, particularmente sus dimensiones, elementos y tipos. Para llevar a cabo la investigación se empleó el estudio de caso en el que participó un grupo de 34 estudiantes de grado noveno y una profesora de matemáticas que implementó las tareas. El análisis muestra que, en su mayoría, las decisiones tomadas por la profesora en la puesta en acto del diseño contribuyeron, de alguna manera, en el desarrollo de las tareas por parte de los estudiantes y en la exposición y evaluación de las estrategias y razonamientos empleados por ellos. Así pues, aunque el diseño este estructurado, este es susceptible a modificaciones por parte del profesor según el contexto de implementación y sus intenciones didácticas, siempre y cuando no se aleje de los objetivos propuestos en su configuración didáctica.
Identifying Magnetic Reconnection in 2D Hybrid Vlasov Maxwell Simulations with Convolutional Neural Networks
Authors: Hu A. , Sisti M. , Finelli F. , Califano F. , Dargent J. , Faganello M. , Camporeale E. , Teunissen J. 
Published: September 2020

Abstract
Magnetic reconnection is a fundamental process that quickly releases magnetic energy stored in a plasma. Identifying from simulation outputs where reconnection is taking place is nontrivial and, in general, has to be performed by human experts. Hence, it would be valuable if such an identification process could be automated. Here, we demonstrate that a machine-learning algorithm can help to identify reconnection in 2D simulations of collisionless plasma turbulence. Using a Hybrid Vlasov Maxwell model, a data set containing over 2000 potential reconnection events was generated and subsequently labeled by human experts. We test and compare two machine-learning approaches with different configurations on this data set. The best results are obtained with a convolutional neural network combined with an “image cropping” step that zooms in on potential reconnection sites. With this method, more than 70% of reconnection events can be identified correctly. The importance of different physical variables is evaluated by studying how they affect the accuracy of predictions. Finally, we also discuss various possible causes for wrong predictions from the proposed model.
The Quest for a Plausible Formation Route of Formyl Cyanide in the Interstellar Medium: a State-of-the-art Quantum-chemical and Kinetic Approach
Authors: Tonolo Francesca , Lupi Jacopo , Puzzarini Cristina , Barone Vincenzo 
Published: September 2020

Abstract
Interstellar complex organic molecules are assumed to be mainly formed on dust–grain surfaces. However, neutral gas-phase reactions in the interstellar medium can play an important role. In this paper, by investigating the reaction between aldehydes and the cyano radical, we show that both formaldehyde (CH2O) and acetaldehyde (CH3CHO) can lead to the formation of formyl cyanide (HCOCN). Owing to accurate quantum-chemical computations followed by rate constant evaluations, we have been able to suggest and validate an effective mechanism for the formation of HCOCN, one of the molecules observed in the ISM. Quite interestingly, the mechanism starting from CH2O is very effective at a low temperature, while that involving CH3CHO becomes more efficient at temperatures above 200 K.
Solving Grain Size Inconsistency between ALMA Polarization and VLA Continuum in the Ophiuchus IRS 48 Protoplanetary Disk
Authors: Ohashi Satoshi , Kataoka Akimasa , van der Marel Nienke , Hull Charles L. H. , Dent William R. F. , Pohl Adriana , Pinilla Paola , van Dishoeck Ewine F. , Henning Thomas 
Published: September 2020

Abstract
The protoplanetary disk around Ophiuchus IRS 48 shows an azimuthally asymmetric dust distribution in (sub)millimeter observations, which is interpreted as a vortex, where millimeter/centimeter-sized particles are trapped at the location of the continuum peak. In this paper, we present 860 μm ALMA observations of polarized dust emission from this disk. The polarized emission was detected toward a part of the disk. The polarization vectors are parallel to the disk minor axis, and the polarization fraction was derived to be 1%–2%. These characteristics are consistent with models of self-scattering of submillimeter-wave emission, which indicate a maximum grain size of ∼100 μm. However, this is inconsistent with the previous interpretation of millimeter/centimeter dust particles being trapped by a vortex. To explain both ALMA polarization and previous ALMA and Very Large Array observations, we suggest that the thermal emission at 860 μm wavelength is optically thick (τ
abs ∼ 7.3) at the dust trap with a maximum observable grain size of ∼100 μm rather than an optically thin case with centimeter-sized dust grains. We note that we cannot rule out that larger dust grains are accumulated near the midplane if the 860 μm thermal emission is optically thick.
The Sloan Digital Sky Survey Reverberation Mapping Project: Photometric g and i Light Curves
Authors: Kinemuchi K. , Hall Patrick B. , McGreer Ian , Kochanek C. S. , Grier Catherine J. , Trump Jonathan , Shen Yue , Brandt W. N. , Wood-Vasey W. M. , Fan Xiaohui , Peterson Bradley M. , Schneider Donald P. , Hernández Santisteban Juan V. , Horne Keith , Chen Yuguang , Eftekharzadeh Sarah , Guo Yucheng , Jia Siyao , Li Feng , Li Zefeng , Nie Jundan , Ponder Kara A. , Rogerson Jesse , Zhang Tianmen , Zou Hu , Jiang Linhua , Ho Luis C. , Kneib Jean-Paul , Petitjean Patrick , Palanque-Delabrouille Nathalie , Yeche Christophe 
Published: September 2020

Abstract
The Sloan Digital Sky Survey (SDSS) Reverberation Mapping program monitors 849 active galactic nuclei (AGNs) both spectroscopically and photometrically. The photometric observations used in this work span over 4 yr and provide an excellent baseline for variability studies of these objects. We present the photometric light curves from 2014 to 2017 obtained by the Steward Observatory’s Bok telescope and the Canada–France–Hawaii telescope with MegaCam. We provide details on the data acquisition and processing of the data from each telescope, the difference imaging photometry used to produce the light curves, and the calculation of a variability index to quantify each AGN’s variability. We find that the Welch–Stetson J index provides a useful characterization of AGN variability and can be used to select AGNs for further study.
Conjuguer des recherches sur les pratiques enseignantes et sur la formation des enseignants : une double fonction scientifique et sociale des Sciences de l’éducation
Authors: Altet Marguerite 
Published: September 2020

L’article vise à rendre compte de l’évolution des travaux sur un objet emblématique des Sciences de l’éducation « les pratiques enseignantes » durant ces cinquante dernières années en France, en montrant ce qui a permis de larges avancées sur l’intelligibilité de ces pratiques, comment un certain nombre de travaux dans le champ ont déplacé, élargi les cadres conceptuels, les objets de recherche et les modélisations afin d’en comprendre le fonctionnement dans leur totalité, qu’il s’agisse de pratiques d’enseignement-apprentissage en classe et pratiques de travail « hors la classe », au sein de collectifs « en travail partagé », collaboratifs et de leurs interrelations. Le deuxième objectif du texte vise à mettre en évidence comment la conjugaison des apports de ces recherches a contribué au processus de professionnalisation des enseignants, transformé leur formation, réorienté des recherches, et vice et versa, comment le processus de professionnalisation a amené à développer des travaux complémentaires et à réinterroger certaines facettes des pratiques enseignantes. Il s’agit par là-même d’illustrer comment tous ces travaux mettent en œuvre la double fonction des Sciences de l’éducation, fonction scientifique de production de modèles d’intelligibilité et fonction transformative d’utilité sociale avec les apports à la formation centrée sur le développement professionnel et la professionnalisation des enseignants.
Être sociologue de l’éducation et militant pour une pédagogie nouvelle et populaire : une impossibilité théorique pour la sociologie française de l’éducation dominante dans les années 1980 et 1990 ?
Authors: Peyronie Henri 
Published: September 2020

Cet article opère un retour critique sur le courant de la sociologie française de l’éducation centré sur l’évaluation socialement différentielle de pratiques scolaires induites par des «innovations», dans les années 1980-1990. Au-delà du socio-linguiste britannique B. Bernstein, que l’on peut considérer comme le pionnier de cette orientation de recherche, l’auteur distingue trois générations d’universitaires français qui ont fait exister ce courant. Si deux figures de la première génération des chercheurs de la discipline des Sciences de l’éducation (V. Isambert-Jamati et G. Snyders) ont nourri l’émergence de cette orientation de recherche, c’est avec le Suffit-il d’innover ? de G. Langouët (1985) et avec une «deuxième génération» de chercheurs que ce modèle de référence s’impose. Celui-ci est souvent durci lors de la réception des publications de recherche qu’il oriente. Il se rigidifie dans les travaux d’une «troisième génération», en même temps qu’il s’affaiblit comme modèle de référence. En reconstituant le contexte théorique, idéologique et politique de cette époque, l’auteur identifie une «faille» principale dans ce rejet indifférencié des innovations pédagogiques : l’absence de travail en vue d’une identification de différences parmi les innovations quant à leurs visées sociales et quant à leurs effets sociaux escomptés. Il analyse ensuite les raisons probables de cette faille. Trente années plus tard, le contexte théorique et idéologique s’étant modifié, l’auteur évoque «un renouvellement épistémologique» caractérisé par des travaux pluri-disciplinaires en équipe ou en réseau, qui intègrent la variable des intentions pédagogiques et des pratiques professionnelles de l’enseignant dans son rapport à la division sociale, s’attardent sur les processus d’appropriation des contenus de savoir par les élèves, et qui restaurent la question de la construction des inégalités éducatives, en conjuguant entre eux des cadres épistémologiques multiples.
D’aujourd’hui à demain : une discipline sous l’égide de Janus
Authors: Marcel Jean-François 
Published: September 2020

Ce texte livre une réflexion à la fois actuelle et prospective sur la discipline des Sciences de l’éducation. L’auteur défend qu’elle se trouve aujourd’hui positionnée au cœur de cinq carrefours stratégiques aux enjeux majeurs pour son avenir : le changement de nom, la formation des enseignants, les liens avec ses disciplines contributives, la diversification de ses objets, la refondation de son rapport aux attentes sociales. En examinant les deux issues possibles chaque fois, quasiment antinomiques (d’où la référence à Janus), l’une étant plutôt « optimiste » et l’autre plutôt « pessimiste », l’auteur propose une feuille de route pour la discipline.
« L’ennuyeux » formalisme d’État. Distanciation-discipline et gouvernance urbaine en République démocratique du Congo
Authors: Perazzone Stéphanie 
Published: September 2020

À partir de données de terrain collectées en République démocratique du Congo (RDC), cet article analyse les effets du formalisme d’État comme modalité de la « gouvernance réelle » des villes, profondément marquées par la privatisation des services et la dilution de la séparation entre public et privé. Le texte démontre qu’au-delà de l’informalisation des échanges, la mise en action quotidienne de routines procédurières formelles continue d’occuper une fonction d’objectivation de la distinction État/société (distanciation), notamment par l’émergence historique d’une obéissance collective normalisée (discipline) à l’imaginaire bureaucratique, conférant à l’État son statut de force dominante globale en RDC, comme dans le reste du monde.