bluuebunny/crossref_metadata_2025_split huggingface dataset:
Indonesian Efl Teachers’ Practice Of Interactional Feedback
Authors: Suryati Nunung 
Published: May 2017

<p>Interactional feedback is defined as feedback that is generated by teachers in response to both erroneous and communicatively inappropriate utterances that students produce during conversational interaction (Nassaji, 2015). Interactional feedback has been investigated in second language acquisition contexts, but little has been done concerning interactional feedback in foreign language settings, particularly in Indonesian context. In this descriptive study, conducted at junior high school level, it was aimed to identify the actual practice of instructors of English as a foreign language on interactional feedback in their classrooms. A classroom observation protocol was used to collect the data. The results show that teachers in general have applied different types of interactional feedback. However, not all interactional feedback results in students’ uptakes.</p>
Building Cultural Awareness and Critical Thinking Skills through Project-Based Task: A Workshop for Indonesian Context
Authors: Rachmajanti Sri 
Published: May 2017

<p>Facing the Third Millennium, any countries should prepare young generation with cultural awareness and critical thinking skills so as to survive in the global era. According to Scriven and Paul (2001), critical thinking is the intellectually disciplined process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and/or evaluating information generated by, observation, experience, reflection, reasoning, or communication, as a guide to belief and action. Whereas, cultural awareness refers to the foundation of communication involving the ability of standing back from ourselves and getting aware of our cultural values, beliefs and perceptions (Cunningham, 2013). These two conceptual insights can be appropriately practiced by pedagogically and professionally competent teachers through the language classroom activities, one of which is ‘project-based task’ which requires learners to think critically to complete cultural-based tasks, and at the same time appreciate the cultural norms. Therefore, the <strong>workshop</strong> is intended to equip participants with the practical knowledge and skills of building cultural awareness and critical thinking skills through the project-based task.</p><p><strong>Keywords: </strong>Cultural Awareness<strong>, </strong>Critical Thinking Skills<strong>, </strong>Project-Based Task<strong></strong></p>
Novel Covers As Literary Art
Authors: Khatib Nur Ali Ahmad Jum’a 
Published: May 2017

<p>Literary art is a translation, interpretation, transmutation of literary text from language system to another signs system. It is a perception product, interpretation and translation of its original works, not to be duplication but as a form of work of art. This research is intended to reveal Novel covers system of representation. The aim is to find out whether it represents the novel values or not as a literary art. In doing so, this research used qualitative method with <em>Negeri van Oranje</em> and <em>Ayah</em> covers as primary data. The data are chosen using purposive sampling with two basic standards: popularity and Myers design standards. Using representation theory and semiotic as tools of analysis, the research then finds that <em>Negeri van Oranje</em> and <em>Ayah</em> covers have two aspects of presentation: novel content values or theme and marketing aspect. It is presented using two elements: textual and visual. The marketing aspect mostly uses texts elements and the novel content uses visual elements. They are using symbolic signs to build future reader impression and perception of the novel. The symbolic signs and concept are constructed to represent the novel content messages or values. Text features explain the visual features, and the visual features express the text features. Covers have different representation system from the novel but it is not an independent system. In conclusion, not every novel cover can be literary art but <em>Negeri van Oranje</em> and <em>Ayah</em> novel covers can be included as literary art.<em> </em></p><p><em></em><strong>Keywords: </strong><em>Literary arts, Novel Cover, Representation</em></p>
Cultural Diversity: When Teachers are at a Loss
Authors: Andreani Sri , Astuti Utari Praba 
Published: May 2017

<p>Teaching is a rewarding activity, but it can be really frustrating when teachers fail to make their students learn. Teachers in the Department of English of our University stumble on a group of students from a particular region in Indonesia. Our observations on these students in our own classes, feedbacks from teachers in other classes, remarks from the chair of the students’ association, and the results of an interview with them reveal problems in entry behaviour, academic achievement, initative, motivation, class responses, and self-discipline. The teachers find it hard to deal with these students and think that these problems are rooted in the so-called cultural differences, but are they really cultural? This article describes these problems, addresses their reasons from the perspectives of culture and pedagogy, and explores possibilities to overcome them. </p><p><strong>Keywords: </strong><em>cultural diversity, teachers, students, problems</em></p>
The influence of water stress on plant hydraulics, gas exchange, berry composition and quality of Pinot Noir wines in Switzerland
Authors: Zufferey Vivian , Spring Jean-Laurent , Verdenal Thibaut , Dienes Agnès , Belcher Sandrine , Lorenzini Fabrice , Koestel Carole , Rösti Johannes , Gindro Katia , Spangenberg Jorge , Viret Olivier 
Published: May 2017

<p><strong>Aims : </strong>The aims of this study were to investigate the physiological behavior (plant hydraulics, gas exchange) of the cultivar Pinot Noir in the field under progressively increasing conditions of water stress and analyze the effects of drought on grape and wine quality.</p><p><strong>Methods and results : </strong>Grapevines of the variety <em>Vitis vinifera</em> L. cv. Pinot Noir (clone 9-18, grafted onto 5BB) were subjected to different water regimes (irrigation treatments) over the growing season. Physiological indicators were used to monitor plant water status (leaf and stem water potentials and relative carbon isotope composition (d<sup>13</sup>C) in must sugars). Leaf gas exchange (net photosynthesis A and transpiration E), leaf stomatal conductance (gs), specific hydraulic conductivity in petioles (K<sub>petiole</sub>), yield components, berry composition at harvest, and organoleptic quality of wines were analyzed over a 7-year period, between 2009 and 2015, under relatively dry conditions in the canton of Wallis, Switzerland. A progressively increasing water deficit, observed throughout the season, reduced the leaf gas exchange (A and E) and gs in non-irrigated vines. The intrinsic water use efficiency (WUE<sub>i</sub>, A/gs) increased during the growing season and was greater in water-stressed vines than in well-watered vines (irrigated vines). This rise in WUE<sub>i</sub> was correlated with an increase in d<sup>13</sup>C in must sugars at harvest. Drought led to decreases in K<sub>petiole</sub>, E and sap flow in stems. A decrease in vine plant vigor was observed in vines that had been subjected to water deficits year after year. Moderate water stress during ripening favored sugar accumulation in berries and caused a reduction in total acidic and malic contents in must and available nitrogen content (YAN). Wines produced from water-stressed vines had a deeper color and were richer in anthocyanins and phenol compounds compared with wines from well-watered vines with no water stress. The vine water status greatly influenced the organoleptic quality of the resulting wines. Wines made from non-irrigated vines with a water deficit presented more structure and higher-quality tannins. They were also judged to be more full-bodied and with blended tannins than those made from irrigated vines.</p><p><strong>Conclusions : </strong>Grape ripening and resulting Pinot Noir wines were found to be largely dependent on the water supply conditions of the vines during the growing season, which influenced gas exchange and plant hydraulics.</p><p><strong>Significance and impact of the study : </strong>Plant water status constitutes a key factor in leaf gas exchange, canopy water use efficiency, berry composition and wine quality.</p>
Improving phenolic and chromatic characteristics of Monastrell, Merlot and Syrah wines by using two elicitors
Authors: GIL Rocio 
Published: May 2017

<p><strong>Aims: </strong>Phenolic compounds, include anthocyanins, flavonols and tannins, are considered very important from a health and technological point of view. The concentration of these compounds in grapes depends on many factors, but the use of elicitors as a new strategy can be a good option to improve the phenolic content of grapes and consequently in wines.</p><p><strong>Methods and results:</strong> Berries of three grape varieties (Monastrell, Merlot and Syrah) were sprayed with two elicitors, BTH (benzothiadiazole) and MeJ (methyl jasmonate), during preharvest, and the phenolic characteristics (anthocyanins, flavonols and tannins) were studied in the grapes at harvest and in the corresponding wines at the end of alcoholic fermentation.</p><p><strong>Conclusion: </strong>Results were different for grapes and wines in function of variety and the elicitor used.</p><strong>Significance and impact of the study: </strong>These results can be useful to enhance the phenolic composition in grapes and wines and to improve their quality, although it must pay attention the variety and the elicitor used
Trends in School-Related Victimization of Lesbian, Gay, and Bisexual Youths—Massachusetts, 1995–2015
Authors: O’Malley Olsen Emily , Vivolo-Kantor Alana M. , Kann Laura , Milligan Chiniqua N. 
Published: May 2017

Objectives. To compare changes over time in prevalence of school victimization among lesbian, gay, and bisexual (LGB) students compared with heterosexual students.Methods. We analyzed data from 11 Youth Risk Behavior Surveys conducted among representative samples of students in grades 9 through 12 in Massachusetts during 1995 to 2015. We used multivariable logistic regression models to identify trends over time by sexual identity.Results. During 1995 to 2015, the prevalence of missing school decreased overall (from 5.6% to 4.8%) and among heterosexual (from 4.3% to 3.8%) and LGB (from 25.0% to 13.4%) students. The prevalence of having been threatened decreased overall (from 7.8% to 4.1%) and among heterosexual (from 6.5% to 3.5%) and LGB (from 32.9% to 6.7%) students.Conclusions. We identified evidence of a significant decrease in victimization among all students regardless of sexual identity and a steep decline among LGB students. Additional actions to improve school climate may help eliminate the disparities and decrease victimization for all youths.
Kemampuan Menentukan Arah Mata Angin Pada Siswa Kelas I SD Muhammadiyah 4 Batu
Authors: Wahyuningrum Lilis 
Published: May 2017

Penelitian ini bertujuan untuk untuk mendiskripsikan penerapan permainan Treasure Hunt dalam meningkatkan kemampuan menentukan arah mata angin Penelitian ini menggunakan rancangan penelitian tindakan kelas yang terdiri dari 2 siklus. Subyek penelitian adalah siswa kelas 1 SD Muhammadiyah 4 Batu. Sumber data primer berasal dari siswa melalui tes unjuk kerja dengan cara menghadap arah mata angin sesuai instruksi. Sedangkan sumber data sekunder adalah data nilai karakter siswa pada saat pembelajaran. Teknik analisis data yang digunakan adalah analisis deskriptif komparatif, yaitu membandingkan data kuantitatif dari kondisi awal, siklus I dan siklus II. Hasil penelitianmenunjukkan bahwa perbaikan pembelajaran di kelas, dengan menggunakan media kompas dan metode bermain Treasure Hunt terjadi peningkatan hasil evaluasi belajar baik secara individu maupun klasikal. Hal ini terjadi karena siswa diajak bermain sambil belajar, sehingga mereka mempunyai pengalaman yang menyenangkan dan mengasyikkan meskipun ada tugas yang harus dikerjakan. Jadi kemampuan menentukan arah mata angin pada siswa kelas 1 SD Muhammadiyah 4 Batu dapat ditingkatkan melalui penerapan permainan Treasure Hunt. Dan penerapan permainan Treasure Hunt dapat meningkatkan kemampuan siswa menentukan arah mata angin sebesar 18,8% yaitu dari siklus 1 65,6% meningkat menjadi 84,4% pada siklus 2.
Pengembangan Media Pembelajaran Permainan Ular Tangga Untuk Meningkatkan Motivasi Belajar Siswa dan Hasil Belajar IPS di Sekolah Dasar
Authors: Afandi Rifki 
Published: May 2017

Penelitian ini bertujuan mengembangkan media pembelajaran permainan ular tangga dalam pembelajaran ilmu pengetahuan sosial (IPS) di sekolah dasar untuk meningkatkan motivasi belajar dan hasil belajar siswa. Salah satu permasalahan pendidikan adalah minimnya sarana dan prasarana, sehingga guru dituntut kreatif dalam meningkatkan kualitas pembelajaran dikelas, seperti mengembangkan media pembelajaran. Salah satu media pembelajaran yang menarik dan mengatasi kebosanan siswa dalam kegiatan pembelajaran yaitu kegiatan pembelajaran berbasis permainan, seperti penerapan media pembelajaran permainan ular tangga. Penelitian ini mengembangkan media pembelajaran permainan ular tangga dalam pembelajaran ilmu pengetahuan sosial (IPS) di sekolah dasar. Pengembangan penelitian mengadobsi model 4D dari model Thiagarajan, dkk . yaitu define, design, develop, dan dissaminate. Teknik pengumpulan data dalam penelitian melalui observasi, pemberian angket, dan tes. implementasi media pembelajaran permainan ular tangga dilaksanankan uji coba dua, uji coba penelitian dilaksanakan di SDI Yapita Surabaya. Hasil implementasi media pembelajaran permainan ular tangga motivasi belajar siswa meningkat 66,7% pada aspek keaktifan belajar dan semangat belajar, sedangkan aspek ketertarikan motivasi belajar siswa meningkat 70%. Sedangkan hasil belajar siswa mengalami peningkatan 40% dari 55% siswa yang mencapai nilai dibawah KKM (kriteria ketuntasan minimun) menjadi 100% semua siswa mencapai nilai diatas KKM (kriteria ketuntasan minimum).
Sikap Guru dan Tingkat Penggunaan Teknologi Informasi dan Komunikasi di Kelas Sebagai Media Pembelajaran Bahasa Inggris di SMA 3 dan SMK 1 Muhammadiyah Kota Batu
Authors: FKIP Sudiran 
Published: May 2017

Penelitian ini bertujuan untuk: (1) mengungkap sikap guru terhadap pemaanfaatan teknologi informasi internet sebagai media pembelajaran bahasa Inggris di SMA. (2) Menjelaskan tingkat kemampuan guru dalam penerapan teknologi informasi komunikasi dalam proses belajar mengajar di sekolah. (3) Menguraikan hubungan sikap guru terhadap internet dan tingkat kemampuannya menggunakan internet sebagai media pembelajaran di sekolah, dan (4) mendeskripsikan tingkat frekuensi guru dalam mengakses internet sebagai media pembelajaran di sekolah.Penelitian menggunakan desain metode kuantitatif dan kualitatif (mixing), yang terdiri dari dua prosedur: (1) rancangan kuesioner, dan (2) penggunaan interview. Penelitian ini dilakukan di SMA 3 Muhammadiyah dan SMK 1 Muhammadiyah di kota Batu.Hasil penelitian menunjukkan bahwa guru memiliki sikap positif terhadap pentingnya penggunaan teknologi informasi komunikasi internet sebagai media pembelajaran bahasa Inggris, guru memiliki tingkat kemampuan yang Baik ketika menggunakan teknologi informasi komunikasi dalam proses belajar mengajar di sekolah, terdapat hubungan signifikan antara sikap guru terhadap TIK dan tingkat penguasaanya sebagai media pembelajaran, dan kesulitan yang dihadapi guru dalam memanfaatkan internet sebagai media pendidikan di sekolah ada dua yaitu (1) tantangan atau kesulitan teknis dan (2) kesulitan non teknis.
Implementación de Central Telefónica Asterisk sobre Raspberry incluyendo Tarifación y Seguridad para el Usuario
Authors: Salgado Mantilla Kathy Valeria , Acosta Buenaño Freddy Roberto , Fiallos Silva Christian Israel , González Hernández Andrés Ricardo , Haro Báez Raúl Vinicio 
Published: May 2017

En este artículo se encuentra la descripción de un sistema completo de comunicación donde se saca provecho a todas las particularidades que una central telefónica pueda ofrecer, dirigida especialmente para medianas o pequeñas empresas que busquen el mejor sistema de comunicación por VoIP a un menor costo. Se destacan aspectos como la utilización de software gratuito de telefonía disponible, como Asterisk, para la implementación de la central telefónica y un sistema de tarifación con licencia libre llamado Servitux, el cual se utilizó para el control y cobro de cada llamada externa, también se manejó hardware de bajo costo, como es la tarjeta Raspberry Pi, donde se buscó aprovechar las ventajas del sistema operativo dando más seguridad por medio de programación en lenguaje php y html, brindando la posibilidad del cambio de clave para cada una de las diferentes extensiones en la central. Finalmente se realizan pruebas de estrés utilizando el software de licencia libre SIPp, definiendo la capacidad del sistema. También por medio de un análisis MOS queda demostrado que se puede satisfacer las necesidades del cliente en cuanto a la calidad y confiabilidad en el servicio de voz QoE.
Stabilized Power AC-DC-AC Converter using polygon transformer
Authors: Dr. Mona F. Moussa  , Eng. Nermeen Biomy  , Prof. Yasser G. Dessouky  
Published: May 2017

Static power converters are used for many applications, like frequency converters for motors, uninterruptible power supplies (UPS’s), general power supplies. This paper analyses the performance of high power static 400Hz supply system used in aircraft ground power units. However, the problem of this system is the harmonics coming from the load current towards the supply. This problem can be overcome by using a way to improve the supply wave. One of those is using novel polygon transformer. This paper presents combining of stabilized powerAC-DC-AC supply using polygon transformer to improve the supply wave and using a passive filter on the output load. The design and simulation of this system has been presented. In [8], the polygon transformer is connected to achieve 18-pulse AC-DC conversion through phase shifting between the two sets of voltages equal 20° with respect to the supply voltage. The disadvantage of this connection is that realizing feasible values for the tapping portion for step up operation is not possible. Therefore, in the proposed system, a novel idea for the 18 pulse conversion is achieved by phase shifting between voltage sets with 40°.
Notes on the Solar Map of Asturias
Authors: J. I. Prieto  , J. C. Martínez-García  , D. García  , R. Santoro  
Published: May 2017

The Solar Map of Asturias (SMA) is the result of a research work carried out within the project ‘‘Bio-climatic Architecture and Solar Cooling” (PSE-ARFRISOL). It is based on a correlation model, recently published, between solar irradiation and air temperature, and on the application of the software ArcGIS 9.3 for the spatial interpolation among data from 63 meteorological stations. The paper shows that the SMA estimations predict difficulties to attain in some areas the minimum solar contribution established by the Spanish Technical Code of Building. Those predictions are compared with the ones obtained by combining experimental data, Geographic Information Systems, and a solar radiation model able of computing the effects of shadows caused by the orography of the ground. It is expected that the combination of both procedures may contribute to the improvement of future SMA editions.
Parallel-Connected Legs in a Grid-Tied Inverter System for Distributed Generation
Authors: G.J. Capellá  , J. Pou  , J. Zaragoza  , S. Ceballos  , I. Gabiola  , E. Robles  
Published: May 2017

Grid-connected high-power inverters are often used in distributed generation and power quality systems. Those inverters have to handle high currents in order to achieve high power values without resorting to higher voltages. Connecting inverter legs in parallel is a proper way to achieve such high currents. Such parallel connection is made by means of inductors and achieving balanced currents among the legs becomes a critical issue. Circulating currents may produce additional losses and stress to the converter’s power devices. Therefore, they should be controlled and minimized. An efficient technique to achieve such balance is presented in this paper. The proposed strategy has been developed on a grid-connected three-phase system. Each phase of the inverter is made up of three legs in parallel. Besides, the control implemented in this work allows full regulation of the power factor. This way, any desired power factor value can be achieved in order to meet grid-connection requirements. Simulation and experimental results are shown in this paper.
Prediction system based on domotic weather sensors for the energy production of solar power plants
Authors: Domingo Benítez  , Carlos González-Muñoz  , José F. Medina  
Published: May 2017

The prediction of the electrical energy generated by a photo-voltaic system is useful for estimating the profitability analysis of a project, without the need of expensive photovoltaic proto-types. Prediction systems are usually based on simulating the physical process of a photovoltaic module, under standard or average local weather conditions. These predictions introduce some errors caused by the use of a theoretical model or average climate data.In our investigations, we noted that the energy generated by a photovoltaic system is proportional to the cumulative measure-ment of the sun illuminance that is provided by a low-cost domo-tic weather station. From this experimental observation, this paper proposes a hardware/software system for predicting the electrical energy generated by a photovoltaic system, such as those existing in buildings. The hardware consists of a domotic installation for monitoring both electric energy and climate parameters. The software consists of a calibration procedure, which provides a proportional factor between sun illuminance and the energy production per unit of surface area of the photo-voltaic modules. Once the calibration procedure is completed, the photovoltaic energy production is predicted by factoring the sun illuminance provided by the weather station and the propor-tional factor provided by the calibration process. This method has been tested under real conditions and the accuracy reached up to 99.7% with an average value of 96.3%.
Control Design of a Two Degree of Freedom Combined with Repetitive Controller Applied to a Single Phase Inverter Power Generation in the Context of Microgrids
Authors: R. Ortega  , E. Figueres  , G. Garcerá  , O. Carranza  , C.L. Trujillo  
Published: May 2017

This paper present the design, analysis andimplementation of a control scheme Two Degrees Of Freedom 2DOF combined with a Repetitive Control. This reduces Total Harmonics Distortion in voltage (THDv), when inverters that operates as voltage sources in microgrids. The controller is designed to be applied to inverters operating in island mode. The goal is to keep the waveform, frequency and amplitude of the grid voltage, when it has linear or nonlinear loads. The analysis and design of the control system is presented in detail.