bluuebunny/crossref_metadata_2025 huggingface dataset:
A Quantitative and Qualitative Inquiry into Future Teachers’ Use of Information and Communications Technology to Develop Students’ Information Literacy Skills | Enquête quantitative et qualitative auprès de futurs enseignants portant sur l’utilisation des technologies de l’information et de la communication pour développer les compétences informationnelles des élèves
Authors: Simard Stéphanie , Karsenti Thierry
Published: February 2017

This study aims to understand how preservice programs prepare future teachers to use ICT to develop students’ information literacy skills. A survey was conducted from January 2014 through May 2014 with 413 future teachers in four French Canadian universities. In the spring of 2015, qualitative data were also collected from 48 students in their final year of an initial teacher training program. Our findings suggest that although future teachers receive formal ICT training as part of their program, information literacy is not formally addressed. Nevertheless, information literacy is perceived to be an important skill. In addition to a lack of formal training, future teachers perceive that barriers such as time constraints and lack of access to necessary technologies in the classroom will prevent them from helping students develop information literacy skills. Based on these results, we propose some practical implications and recommendations for preservice programs and education policy makers.Cette étude vise à mieux comprendre comment la formation initiale en enseignement prépare les futurs enseignants à utiliser les TIC pour développer les compétences informationnelles des élèves. Dans un premier temps, une enquête a été réalisée entre janvier et mai 2014 auprès de 413 futurs enseignants dans quatre universités québécoises. Dans un second temps, au printemps 2015, des données qualitatives ont été recueillies auprès de 48 futurs enseignants au cours du dernier trimestre de leur formation initiale. Nos analyses suggèrent que si les futurs enseignants reçoivent une formation à l’utilisation pédagogique des TIC, les compétences informationnelles ne sont pas explicitement abordées, et ce, bien qu’elles soient perçues comme essentielles. De plus, les contraintes de temps et l’accessibilité aux outils informatiques sont pressenties comme des défis importants. Sur la base des suggestions des participants, nous dégageons des retombées pratiques pour la formation initiale et pour les détenteurs d’enjeux en éducation.
PENGEMBANGAN BANK SOAL DAN PEMBAHASAN UJIAN NASIONAL BERBASIS MULTIMEDIA PEMBELAJARAN INTERAKTIF DENGAN MACROMEDIA AUTHORWARE 7.0
Authors: Anggraini Sunarti dan Deri
Published: February 2017

Abstrak: Pengembangan Bank Soal dan Pembahasan Ujian Nasional Berbasis Multimedia Pembelajaran Interaktif dengan Macromedia Authorware 7.0. Penelitian ini bertujuan untuk mengembangkan bank soal dan pembahasan UN SD berbasis multimedia pembelajaran interaktif dengan macromedia authorware 7.0. Penelitian menggunakan desain penelitian pengembangan yang diadaptasi dari model penelitian pengembangan. Penelitian ini telah berhasil mengembangkasan bank soal dan pembahasan UN SD berbasis multimedia pembelajaran yang dikemas dalam bentuk CD pembelajaran dan telah divalidasi oleh ahli materi dan ahli media, serta telah diujicobakan pada pengguna produk. Ditinjau dari aspek isi dan pembelajaran validator menilai kualitas produk sangat baik. Dengan menggunakan rentang skor 1 sampai 5, skor rata-rata aspek isi 4,67, aspek pembelajaran 4,68, aspek tampilan 3,95, dan pemrograman 4,13. Aspek daya tarik menunjukkan bahwa produk sangat menarik dengan skor rata-rata 4,15. Hasil uji coba menunjukkan bahwa persentase ketuntasan belajar latihan UN IPA rata-rata 85% (baik), Bahasa Indonesia mencapai rata-rata 90% (sangat baik), dan Matematika 31% (sangat kurang). Produk ini diharapkan mampu untuk membantu siswa dalam mempersiapkan UN SD. Kata Kunci: pengembangan bank soal, multimedia, pembelajaran interaktif, UN Abstract: Development of The Interactive Learning Multimedia-Based National Examination Item Bank and Its Discussion Using The Macromedia Authorware 7.0. This study aimed to develop the interactive learning multimedia-based Elementary School National Examination (UN SD) item bank and its discussion using Macromedia Authorware 7.0. The development research model of Borg & Gall, Arief S, Sadiman et al., and Sugiyono was used in this study. This research was successfully to develop the interactive learning multimedia-based UN SD item bank and its discussion in learning CD and validation was carried out by material and media experts, and trials were also conducted among product users. From the content and learning aspects, the product was assessed as excellent by the validators. Based on the scale of 1 to 5, the average scores of content, learning, display, and programming aspects were 4.67, 4.68, 3.95, and 4.13, respectively. From interest aspect, it was shown that the product was highly interesting averaged of 4.15. From the trial, the percentage of students’ learning mastery in Science, Bahasa Indonesia, Mathematics UN trials were 85%, 90%, and 31% in averages with the criteria of good, excellent, very poor, respectively.It is expected that this product will be able to assist Elementary School students in preparing their UN. Keywords: development, multimedia, National Examination
PENGEMBANGAN MODEL PEMBELAJARAN SOFT SKILLS DAN HARD SKILLS UNTUK SISWA SMK
Authors: Noto Widodo, Pardjono Widarto
Published: February 2017

Abstrak: Pengembangan Model Pembelajaran Soft Skills dan Hard Skills untuk Siswa SMK. Era global menuntut sumber daya manusia yang memiliki daya saing, adaptif dan antisipatif, mampu belajar, terampil, mudah beradaptasi dengan teknologi baru. Profil tenaga kerja yang dibutuhkan pasar adalah yang kuat pada aspek soft skills dan hard skills. Ada tiga alternatif model pendidikan yang memadukan hard skills dan soft skills, yaitu (1) aspek soft skills dan hard skills dilaksanakan di sekolah; (2) aspek soft skills dilaksanakan di sekolah, sedang hard skills dilaksanakan bersamaan praktik kerja di DUDI; atau (3) aspek soft skills dilaksanakan di sekolah, sedang aspek hard skills ketika praktik kerja di teaching factory. Untuk itu, struktur kurikulum SMK disusun sesederhana mungkin dengan tetap mengacu Kurikulum Nasional yang digunakan dengan tekanan pada aspek soft skills dan mengintegrasikannya ke dalam silabus dan RPP. Karakteristik guru yang diperlukan adalah: (1) the adaptor; (2) the visionary; (3) the collaborator; (4) the risk taker; (5) the leaner; (6) the communicator; (7) the model; dan (8) the leader. Selain itu, diperlukan dukungan stake holders yakni dinas pendidikan setempat, masyarakat dan DUDI. Kata Kunci: model pembelajaran, pendidikan soft skills, hard skills, siswa SMK, tenaga kerja Abstract: Development of Soft Skills and Hard Skills Learning Model for Students of SMK. The global era demands human resources that are competitive, adaptive and anticipatory, able to learn, skillful, adaptable to new technology. Labors’ profile that market needs are someone who has a strong skill in the aspect of soft skills and hard skills. There are three alternative education modela that combines hard skills and soft skills, namely (1) aspects of soft skills and hard skills present in the school; (2) aspects of soft skills is implemented in schools, while the hard skills is being held during working practices in DUDI; (3) soft skills aspect is implemented in schools, while aspects of hard skills when working practices in teaching factory. For that, the structure of vocational curriculum is arranged as simple as possible referring to the National Curriculum which is used with an emphasis on aspects of soft skills and is integrated into the syllabus and lesson plans. Teachers’characteristics requires: (1) the adaptor; (2) the visionary; (3) the collaborators; (4) the risk taker; (5) the leaner; (6) the communicator; (7) the model; and (8) the leader. In addition, it requires the support of local education stakeholders, communities and DUDI.
Термоэдс и термомагнитные свойства твердых растворов Er-=SUB=-x-=/SUB=-Sn-=SUB=-1-x-=/SUB=-Se
Authors: Гусейнов Дж.И. , Мургузов М.И. , Исмаилов Ш.С. , Мамедова Р.Ф. , Годжаев Э.М.
Published: February 2017

В системе ErxSn1-xSe наблюдаются сильное отклонение от линейности температурной зависимости дифференциальной термоэдс при температурах ниже комнатной и изменение знака коэффициента термомагнитных эффектов. Выявлено, что при неравновесном состоянии в исследуемых составах изменение от линейности термоэдс связано в основном с увлечением носителей заряда фононами alphaph. Оценены статистические силы электронного увлечения Aph(varepsilon). DOI: 10.21883/FTP.2017.02.44097.7618
Особенности волноводной рекомбинации в лазерных структурах с асимметричными барьерными слоями
Authors: Полубавкина Ю.С. , Зубов Ф.И. , Моисеев Э.И. , Крыжановская Н.В. , Максимов М.В. , Семенова Е.С. , Yvind K. , Асрян Л.В. , Жуков А.Е.
Published: February 2017

Методом сканирующей ближнепольной оптической микроскопии исследовано пространственное распределение интенсивности излучения, возникающего при больших уровнях накачки (до 30 кА/см2) вследствие рекомбинации в волноводном слое лазерной структуры GaAs/AlGaAs с асимметричными барьерными слоями GaInP и AlGaInAs. Обнаружено, что в таком лазере волноводная люминесценция, в целом менее интенсивная по сравнению с наблюдаемой в аналогичном лазере без асимметричных барьеров, распределена в волноводе неравномерно --- максимум распределения сдвинут к p-эмиттеру. Это может быть объяснено способностью барьера GaInP, примыкающего к квантовой яме со стороны n-эмиттера, подавлять транспорт дырок. DOI: 10.21883/FTP.2017.02.44116.8361
The temperature dependence of the conductivity peak values in the single and the double quantum well nanostructures n-InGaAs/GaAs after IR-illumination
Authors: Arapov Yu.G. , Gudina S.V. , Klepikova A.S. , Neverov V.N. , Harus G.I. , Shelushinina N.G. , Yakunin M.V.
Published: February 2017

The dependences of the longitudinal and Hall resistances on a magnetic field in n-InGaAs/GaAs heterostructures with a single and double quantum wells after infrared illumination are measured in the range of magnetic fields B=0-16 T and temperatures T=0.05-4.2 K. Analysis of the experimental results was carried out on a base of two-parameter scaling hypothesis for the integer quantum Hall effect. The value of the second (irrelevant) critical exponent of the theory of two-parameter scaling was estimated. DOI: 10.21883/FTP.2017.02.44119.8302
Определение аберрационных характеристик оптических систем, содержащих акустооптические дифракционные элементы
Authors: Батшев В.И. , Мачихин А.С. , Пожар В.Э.
Published: February 2017

Представлен пример вычисления аберрационных изображений, возникающих в оптических системах (ОС), содержащих акустооптические (АО) дифракционные элементы. Метод расчета основан на интеграции аналитических алгоритмов расчета таких элементов в программное обеспечение для автоматизированного расчета классических ОС. Этот подход может быть использован для расчета ОС, содержащих АО-элементы различной конфигурации, и оптимизации существующих приборов на их основе. DOI: 10.21883/PJTF.2017.04.44300.16388
Интерференция при туннельной ионизации электрона, связанного двумя короткодействующими потенциалами
Authors: Головинский П.А. , Дробышев А.А.
Published: February 2017

Рассмотрена туннельная ионизация электрона, связанного двумя дельта- потенциалами, под действием постоянного электрического поля. Получены распределения плотности электронного тока для двух разных начальных состояний. Исследована зависимость эмиссионного тока от ориентации потенциалов относительно направления поля и расстояния между ними. Определены условия проявления интерференционных эффектов. DOI: 10.21883/PJTF.2017.04.44304.16452
Implementasi Pembelajaran Sains Untuk Anak Usia Dini Dalam Menghadapi Masyarakat Ekonomi Asean (Mea)
Authors: Prasetyo Sigit
Published: February 2017

Pembelajaran sains merupakan proses pembelajaran sepanjang hayat sebagaimana belajar berhitung. Anak-anak dari segala jenis usia akan memperoleh manfaat dengan menganalisis keadaan-keadaan di sekitarnya yang mengadung unsur sains. Anak-anak perlu didorong agar memperoleh lebih banyak pengalaman sains di alam, kemudian menjelaskan peristiwa-peristiwa yang dilihatnya, menanyakannya, dan menganalisis cara peristiwa-peristiwa itu terjadi. Implementasi pembelajaran sains untuk anak usia dini dalam menghadapi MEA adalah dengan memasukkan enam keterampilan dasar sains ke dalam empat faktor penentu kemajuan suatu negara, yaitu inovasi, penguasaan jaringan melalui komunikasi, penguasaan teknologi, dan kekayaan sumberdaya alam. Adapun keenam keterampilan dasar sains yang perlu diajarkan kepada siswa adalah: pengamatan (observation), pengomunikasian (communication), pengklasifikasian (classification), pengukuran (measurement), penyimpulan (inference), dan peramalan (prediction). Keenam keterampilan di atas terintegrasi ketika seorang anak melakukan percobaan sederhana. Enam keterampilan dasar di atas sangat penting dalam kedudukannya sebagai keterampilan mandiri sebagaimana pentingnya ketika berkedudukan sebagai keterampilan terintegrasi. Keterampilan yang diasah sejak dini diharapkan akan menjadi bekal untuk menghadapi jenjang pendidikan siswa selanjutnya. Hal ini menjadi fokus penting mengingat batas-batas antar negara saat ini semakin transparan, persaingan tidak hanya terjadi secara lokal melainkan sudah bersifat global sejak dicanangkanya MEA.
Klasifikasi Belimbing Menggunakan Naïve Bayes Berdasarkan Fitur Warna RGB
Authors: Manik Fuzy Yustika , Saragih Kana Saputra
Published: February 2017

Post harvest issues on star fruit are produced on a large scale or industry is sorting. Currently, star fruit classified by rind color analysis visually human eye. This method does not effective and inefficient. The research aims to classify the starfruit sweetness level by using image processing techniques. Features extraction used is the value of Red, Green and Blue (RGB) to obtain the characteristics of the color image. Then the feature extraction results used to classify the star fruit with Naïve Bayes method. Starfruit image data used 120 consisting of 90 training data and 30 testing data. The results showed the classification accuracy using RGB feature extraction by 80%. The use of RGB as the color feature extraction can not be used entirely as a feature of the image extraction of star fruit.
The impact of corporate social responsibility on firm performance: Evidence form a MENA country
Authors: Basuony Mohamed A. K. , Elseidi Reham I. , Mohamed Ehab K. A.
Published: February 2017

This paper investigates the effect of corporate social responsibility (CSR) on organization performance. It uses cross sectional data from non-financial companies in Egypt that derived from the Kompass Egypt data base. Regression analysis was used to explain the relationship and the effect of CSR on organization financial performance. The findings of this study found that there is a positive and significant effect of CSR on firm performance. Also, all CSR dimensions have significant relationship with firm financial performance. Furthermore, one of the conclusions of this study is that larger and older firms have a positive effect on financial performance (profitability) which will lead to enhance use of better CSR practice
The impact of governance and ownership structure on disclosure patterns transcending major regulatory change in Malaysia
Authors: Ho Poh-Ling , Taylor Grantley
Published: February 2017

The purpose of this study is to investigate the extent of voluntary disclosures between 2006 and 2009 that transcends major regulatory and governance changes in Malaysia and to assess the association between strength of corporate governance structure, and ownership structure on the extent of voluntary disclosures of Malaysian listed firms over that period. The average level of voluntary disclosure within the annual reports of sample firms increased over the two periods. Further, the extent of voluntary disclosure is significantly positively associated with strength of corporate governance structure in both 2006 and 2009. Firms with concentrated ownership structure are associated with more extensive voluntary disclosures. These findings highlight the importance of an effective governance regime and concentrated ownership structure in reducing information asymmetry and agency costs and thereby enhancing the level of voluntary disclosures. These findings also have practical implications for policy-makers, analysts, auditors and regulators in Malaysia as well as East Asian countries
Polythene Mulch and Irrigation for Mitigation of Salinity Effects on Maize (Zea mays L.)
Authors: Sikder M U , Haque M Asadul , Jodder R , Kumar T , Mondal D
Published: February 2017

A pot experiment was conducted at the net house of Patuakhali Science and Technology University during rabi season 2014-15 to estimate the contribution of polythene mulch and irrigation on reducing of salinity effect on maize (Zea  mays L.). The experiment was laid out in a three factors randomized complete block design with three replications. The factors were salinity (two levels: without and 5 dS/m salinity), mulch (two levels: without and with polythene mulch) and irrigation (three levels: 125, 250 and 500 ml water/irrigation). BARI hybrid maize-7 was the test crop. Every pot received the same amount of fertilizer nutrients. Crops were harvested at tassel initiation stage. Mulch increased soil temperature by 2 to 4.5°C (with average of 3.1°C) over without mulch. In without mulch condition, salinity reduced shoot fresh and dry, and root fresh and dry weight by 28.3, 10.3, 39.4 and 30.6%, respectively. In with mulch condition, however, these reductions were 1.0, 7.2, 12.3 and 12.1 %, respectively. Polythene mulch reduced salinity induced reduction of the above parameters by 96.5, 30.1, 68.8 and 60.5 %, respectively. Under 125, 250 and 500 ml water/irrigation treatment, salinity reduced shoot fresh weight by 14.2, 19.3 and 6.7 %, respectively; shoot dry weight by 15.4, 6.6 and 5.0 %, respectively; and root fresh weight by 27.5, 20 and 11.6 %, respectively. Thus, the effect of salinity in maize was gradually decreased with the increasing amounts of irrigation water. Soil salinity reduced phosphorus and increased sulphur content in maize plants.The Agriculturists 2016; 14(2) 01-13
Effects of Stocking Density on Growth and Production of Silver Barb (Barbonymus gonionotus) in Pond
Authors: Sarker Baadruzzoha , Rahman Mustafizur , Ruhul Amin Md
Published: February 2017

An experiment was carried out to study the density dependent growth of silver barb   (Barbonymus gonionotus) for a period of 2 months during14 March to 18 May, 2013 in ponds with individual water area of 2.0 decimal. The experiment was conducted with three treatments, replicated three times, where stocking densities were 50, 100 and 150 fish/decimal in T1, T2 and T3, respectively. Feeds were supplied twice daily throughout the study period. Sampling was done at weekly interval throughout the experimental period. Water quality parameters were monitored weekly. Temperature ranged from 26.40 to 30.13°C, transparency from 32.36 to 46.23 cm, dissolved oxygen from 4.80 to 5.83 mg/l and pH from 6.68 to 8.11. During the study period, growth parameters were analyzed. The mean weight gains were 52.48, 49.98 and 47.87 g, the percent weight gains were 2560.16, 2438.37 and 2335.12, the average daily weight gains were 0.82, 0.78 and 0.74 g, the specific growth rates were 5.12, 5.05 and 4.98%, the survival rates were 89.6, 86.67 and 82.11% in T1, T2, and T3, respectively. There were significant differences among T1, T2 and T3 for all the growth parameters. The total productions of silver barb were 603.85, 1114.00 and 1518.06 kg/ha/2 months in T1, T2 and T3, respectively. The present study indicates that the growth of silver barb was density dependent when grown in monoculture systems and the best stocking density for production was 150 fish/decimal. The Agriculturists 2016; 14(2) 61-66
Climate Change Vulnerabilities of Woman in Bangladesh
Authors: Zahan Tanny Nishith , Wakilur Rahman M
Published: February 2017

This paper reviews the existing literature on gender differentiated climate change vulnerabilities in developing countries including Bangladesh. It is evident that climate change amplifies the vulnerabilities of poor people who are marginalized and more dependent on the threatened natural resources. Among the poor people women are seemed to be disproportionately affected by climate change. The review took utmost effort to unfold the root causes of gender differentiation under climate change scenario. It identifies some governing factors such as ownership, political affiliation, labor force participation that determine the extent of the effect of climate change. Deeper analyses of the literatures indicate that gender differentiated impacts- are directly related to traditional gender roles of women. It also reveals the constraints to womens adaptation resulting from access to resource allocation and other elements of society. Drawing lessons from the existing literatures, finally it outlines some of the policy options to ensure the inclusion of women in development arena.The Agriculturists 2016; 14(2) 113-123
Performance and Stability Enhancement of Perovskite-Type Nanomaterials Applied for Carbon Capture Utilizing Oxyfuel Combustion
Authors: Shen Qiuwan , Zhang Yindi , Ding Haoran , Wu Lijuan , Xu Yongqing , Shi Baocheng , Zheng Ying , Yuan Jinliang
Published: February 2017

A new series of Ba-Co-Operovskite-type oxygen carriers has been successfully synthesized by the microwave-assisted sol-gel method and further applied for producing an O2/CO2 mixture gas. The oxygen adsorption/desorption performance of synthesized samples was studied in a ﬁxed-bed reactor system. Effects of A/B-site substitution on the oxygen desorption performance of Ba-Co-O–based perovskites are also included. Furthermore, the effects of operating conditions including the adsorption time and temperature as well as the desorption temperature on oxygen production performance were investigated in detail. The results indicated that BaCoO3-δ exhibited an excellent oxygen desorption performance among the synthesized A/B-site–substituted ACoO3-δ and BaBO3-δ samples, and that the optimal adsorption time, adsorption temperature and desorption temperatureforBaCoO3-δ were determined to be 20min, 850◦Cand850◦C, respectively, in this study.
Promoting Research Culture in Cross Functional Areas
Authors: John Byju , Gupta Shilpi
Published: February 2017

The 21st century is known as “knowledge era”. Universities, educational Institutes play a pivotal role in re-confirming the label of knowledge era. This chapter highlights the role of cross functional research in promoting convergence of ideas from various disciplines by specialists to cope with global competitiveness and promote social and economic progress. There is no alternative to the creation of a knowledge society and knowledge workers without the Universities. The various sections of the chapter explore the role of Universities in promoting CFR and how it encourages the researchers to go beyond their discipline and gain a broader vision and in-depth insight of the problems existing and promoting total transformation of a region and society towards nation building and improving the ranking of Indian Universities in the global educational market.
Image Processing
Authors: Jyothi Singaraju , Mamatha Dadala Mary
Published: February 2017

This chapter gives an introductory to intermediate level text on the science of image processing. It employs the Matlab programming language to illustrate some of the elementary key concepts in modern image processing and pattern recognition. The approach taken is essentially practical and the chapter offers a framework within which the concepts can be understood by a series of well-chosen examples, exercises and computer experiments, drawing on specific examples from within science, medicine and engineering. Particularly, the modern applications such as agriculture, aquaculture, food industrial analysis and Hyperspectral images analysis are discussed in this chapter with illustrations using Matlab.
Research-Based Strategies in an Electric Circuits Lab
Authors: Quezada-Espinoza Monica , Zavala Genaro
Published: February 2017

This study reports the outcomes of comparing three methods to carry out a physics laboratory with active learning strategies: Tutorials in Introductory Physics (Tutorials) and RealTime Physics (RTP). A sample of 476 students was divided into three groups, about one third of the students used Tutorials, another third used RTP, and the last third used RTP with graphing calculators and probes. A multiple choice test was used to find that the three groups had statistically-significant differences on conceptual understanding of current concepts. Additionally, it was found differences in gains among the three groups using a multiple-choice pretest and posttest. With an analysis of misconceptions it was found that an important portion of students still holding misconceptions. The change of instruction seems to affect conceptual understanding when students have to analyze difficult circuits. Besides, it was found that students still holding misconceptions, they continue using terms like current and voltage interchangeably.
The familiar versus the unfamiliar: Familiarity bias amongst individual investors
Authors: De Vries Annalien , Erasmus Pierre D. , Gerber Charlene
Published: February 2017

Purpose: The purpose of this study was to investigate the existence of familiarity bias amongst individual investors in the South African stock market. Problem investigated: According to Warren Buffet, one needs to maintain emotional detachment if one wants to be a successful investor. However, recent research indicates that the perceptions of companies’ products and brands may influence individuals’ investment decisions in the stock market. This phenomenon implies that the investment decisions of individual investors are not purely based on firm fundamentals as suggested by traditional finance theories, but might be driven partly by the positive or negative attitude they have towards certain companies’ products and brands. The existence of familiarity bias amongst individual investors was investigated to determine if individuals prefer to invest in companies they are familiar with as opposed to unfamiliar companies. Methodology: A quantitative approach was followed. An online survey was used to show images of familiar and unfamiliar company brands to respondents, whereafter respondents were asked to indicate whether they will invest in the shares of the identified companies. The statistical analysis entailed descriptive statistics as well as one-way analyses of variance to test the stated hypotheses. Main findings: The results of this exploratory study indicate that investors do exhibit familiarity bias when choosing between different companies to invest in. Value of the research: The inclination of individual investors to invest in familiar corporate brands can have implications for the marketing industry, financial markets, the performance of companies as well as the investment performance of individual investors in the sense that it would seem that company brands could have an influence on investment decisions.
Sports hernia: A pictorial review
Authors: Mercouris Peter
Published: February 2017

Sports hernia represents a complex clinical and imaging entity. The purpose of the review is to provide a practical imaging approach to this condition. The review includes an overview of the anatomy and biomechanics of sports hernia by means of colour illustrations. The role of imaging, and particularly magnetic resonance imaging, is highlighted.
Об одном свойстве симметризованных распределений
Authors: Gamkrelidze Nikolai Georgievich
Published: February 2017

В работе изучается связь между локальной предельной теоремой для решетчатых случайных величин и для соответствующих симметризованных случайных величин. Построен пример, показывающий, что последовательность симметризованных решетчатых случайных величин удовлетворяет локальной предельной теореме, вместе с тем для исходных случайных величин локальная предельная теорема не выполняется.
Españoles por Europa: los escritores isabelinos y la modernidad
Authors: Sánchez García Raquel
Published: February 2017

Este artículo pretende analizar cómo los hombres de letras españoles percibieron los fenómenos asociados a la modernidad. Para ello, se utilizarán varios relatos de viaje escritos durante el reinado de Isabel II. En estos relatos se observan tres líneas de análisis: el combate de los tópicos sobre España creados por los viajeros extranjeros, la mentalidad del habitante de la gran metrópolis y la percepción fragmentaria de la ciudad. Finalmente, hay que decir que los escritores isabelinos plantearon proyectos de regeneración de España a la luz del ejemplo europeo sin perder la identidad nacional.
La televisión argentina: historia, composición y crítica de medios
Authors: Heram Yamila
Published: February 2017

El objetivo de este artículo es analizar la relación entre la televisión y la crítica de medios desde sus orígenes en Argentina hasta su consolidación a partir de la privatización de los canales (1951-1966). Es en la intersección entre la historia del medio, las modificaciones a nivel de contenido y composición, y las características y mutaciones de la propia crítica donde está puesto el énfasis de este trabajo.
MOTIVAÇÃO DE JOVENS E ADULTOS PARA O TREINAMENTO DO ATLETISMO
Authors: De Souza Renato Siqueira , Perrout de Lima Jorge Roberto , Werneck Francisco Zacaron , Bara Filho Maurício Gattás , De Freitas Jefferson Verbena
Published: February 2017

O estudo investigou diferenças na motivação de atletas do atletismo, comparando grupos de provas, nível competitivo, categoria e sexo. Avaliamos a motivação através do questionário (SMS-BR28)de 133 atletas, 56% do sexo masculino e 44% do sexo feminino. Não teve diferenças significativas entre grupos de provas e nível competitivo, nível de significância (P<0,05). Houve diferença significativa comparando à motivação de juvenis e adultos vs pré-mirim e mirim. Concluímos que a motivação para treinar Atletismo independe da prova disputada, atletas juvenis, sub-23 e adultos são mais motivados intrinsecamente que os atletas pré-mirim e mirim, em relação ao sexo os homens tem maior motivação extrínseca que as mulheres.
Modernization Process in Iran: Historical Overview
Authors: Shahriari Kamyab
Published: February 2017

Modernization process in Iran began in 19th century by Iranian officials like Abbas Mirza Ghaem Magham and Amir Kabir in order to change the traditional structure of government and replace it with a new and modern one. After the establishment of Pahlavi dynasty, the process of modernization continued by Reza Shah and Mohammad Reza Shah. After the victory of Islamic revolution of 1979 modernization didn’t stop and continued until now. This paper examines the process of modernization in Iran from 19th century up to the present. Research shows that although 100 years have passed since the victory of Iran’s Constitutional Revolution and in spite of 150 years passing since modern political concepts introduced by intellectuals and inclusive struggles to establish modern political system, none of these have been incarnated in a tangible way. As a result, Iranian society is still in search of the rule of law, freedom and democracy, which had been introduced for the first time more than hundred years ago.
Prólogo No.19
Authors: Hooker B. Alta
Published: February 2017

Este volumen No. 19 de la Revista Ciencia e Interculturalidad, presenta una compilación estructurada en 4 secciones, las cuales comprenden 9 artículos, en el área de Educación: 1) Violencia escolar en la ciudad de Blue elds, RACCS Nicaragua; 2) Epistemología de la Pedagogía Infantil ; 3) Disertaciones elementales sobre teoría combinatoria: hacia una inculturación de las matemáticas; 4) Reglas generales de acentuación en octavo grado de Educación a Distancia en la comunidad Dipina, Waslala, 2016. La segunda sección, en Educación Superior: 5)Los problemas de comprensión del álgebra en estudiantes universitarios. En la tercera sección, Revitalización cultural: 6) Sistema médico tradicional- ancestral en el territorio de los Pastos Resguardo Indígena de Túquerres-Narino, Colombia; 7) Reconstrucción del Machil en el Pwelmapu: saber y poder. En la cuarta sección, Ciencias Sociales: 8) Tejiendo el consenso desde la combinación de las agendas: la Agenda Melding; 9) Sistema de control de pago de matrículas y aranceles de la Universidad de las Regiones Autónomas de la Costa Caribe Nicaragüense, Recinto Las Minas, 2015.
Sistema de control de pago de matrículas y aranceles de la Universidad de las Regiones Autónomas de la Costa Caribe Nicaragüense, Recinto Las Minas, 2015
Authors: Roque Castellano Esmir Noel , Vargas Moreno Freddy Betzael , Ortega Carrasco Elkis Aismara
Published: February 2017

Se desarrolló un sistema de control de pagos de matrículas y aranceles de los estudiantes en la URACCAN, Recinto las Minas Siuna, que almacena la información de forma efectiva. Automatiza, registra y brinda información en tiempo real. Es un estudio aplicativo con enfoque cuantitativo. La fuente primaria fue el personal administrativo dedica al manejo de control de pagos de matrículas y aranceles, como fuente secundaria todos los registros, formatos y documentos que utiliza el área de administración. Se creó un Sistema de Base de Datos con el gestor, Structured Query Language (SQL) Server 2014, está conformado de diez tablas, debidamente relacionadas y normalizadas que evita la redundancia de datos. La interfaz gráfica se diseñó en Visual Studio 2010, con el lenguaje de programación Visual Basic y se crearon 22 formularios, que permite al usuario interactuar con la base de datos de forma sencilla y segura. El sistema de información se implementó en el área de Administración que pasó por un periodo de prueba, de tal manera que se identificaron los posibles errores y se corrigieron a través de la reingeniería del sistema.
Espiritualidade e saúde na logoterapia de Victor Frankl
Authors: Carrara Paulo Sérgio
Published: February 2017

RESUMO

Victor Frankl criou uma escola de psicologia que evidencia a vontade de sentido como motivação primária do ser humano, a logoterapia.  A perda dessa vontade de sentido seria causa de neuroses pessoais e do que ele chama neurose coletica, caracterizada pelo vazio existencial. Na origem de vários distúbios psicológicos atuais se encontra esse vazio existencial, a ser enfrentado no processo psicoterapêutico em vista de uma vida mais saudável psiquicamente. A logoterapia de Frankl traz abordagem original da relação psicologia e religião, ultrapassando visões psicológicas mais negativas da religião. A dimensão espiritual do ser humano se encontra no seu próprio incosciente e sua repressão também se mostra neurotizante. O presente artigo avalia a pertinência da proposta de Frankl sobre a relação espiritualidade e saúde. Em um momento de exploração religiosa da fragilidade emocional das pessoas, sua aborgam oferece pistas excelentes para uma compreensão mais consistente da complexa relação entre espiritualide e saúde.

 
Nuevos modelos de consumo audiovisual: los efectos del binge-watching sobre los jóvenes universitarios
Authors: Hernández Pérez Juan Francisco , Martínez Díaz Miguel Ángel
Published: February 2017

La industria del entretenimiento ha contemplado desde sus inicios al espectador como mero sujeto pasivo. Sin embargo, la disrupción tecnológica que supuso la digitalización de la señal audiovisual ha convertido a los consumidores de estos productos en usuarios activos. Este cambio de paradigma técnico ha favorecido la aparición de una nueva modalidad de acceso que ha modificado, de forma irresoluble, la relación entre público y contenido. El origen de esta revolución se fundamenta en el uso masivo, a través de Internet, de una serie de instrumentos (redes p2p, streaming de vídeo, repositorios digitales, etc.) que permiten al internauta el libre intercambio de cualquier material fílmico fuera de toda restricción comercial. De esta forma, el incremento exponencial de títulos disponibles en Internet para su consumo inmediato, de fácil acceso y a coste cero o muy reducido, ha estimulado una nueva forma de consumo, sobre todo en lo referente a las ficciones televisivas en serie. Este comportamiento anómalo, definido como binge-watching, ha modificado la conducta y el comportamiento de los consumidores, lo que repercute de forma directa en los medios de comunicación tradicionales. Además este nuevo fenómeno repercute en los hábitos de comportamiento del espectador (higiene, sueño, etc.) en pos del visionado ininterrumpido de su contenido preferido. Así, partiendo del paradigma de los Usos y Efectos y basando la observación en un estudio empírico, el objetivo principal de esta investigación es analizar los efectos que este nuevo modelo de consumo audiovisual tiene sobre los jóvenes universitarios.
He bulge revealed: He and CO2 diurnal and seasonal variations in the upper atmosphere of Mars as detected by MAVEN NGIMS
Authors: Elrod M. K. , Bougher S. , Bell J. , Mahaffy P. R. , Benna M. , Stone S. , Yelle R. , Jakosky B.
Published: February 2017

Analysis of the Neutral Gas and Ion Mass Spectrometer (NGIMS) on the Mars Atmosphere Volatiles and EvolutioN (MAVEN) spacecraft closed source data from all orbits with good pointing revealed an enhanced Helium [He] density on the nightside orbits and a depressed He density on the dayside by about a factor of 10–20. He was also found to be larger in the polar regions than in the equatorial regions. The northern polar winter nightside He bulge was approximately twice that of the northern polar summer nightside bulge. The first 6 weeks of the MAVEN prime mission had periapsis at high latitudes on the nightside during northern winter, followed by the midlatitudes on the dayside moving to low latitudes on the nightside returning to the high latitudes during northern summer. In this study we examined the NGIMS data not only in the different latitudes but sorted by solar longitude (Ls) in order to separate the diurnal or local solar time (LST) effects from the seasonal effects. The Mars Global Ionosphere‐Thermosphere Model (M‐GITM) has predicted the formation of a He bulge in the upper atmosphere of Mars on the nightside early morning hours (Ls = 2–5 h) with more He collecting around the poles. Taking a slice at constant altitude across all orbits indicates corresponding variations in He and CO2 with respect to LST and Ls and a diurnal and seasonal dependence.
Bounce resonance scattering of radiation belt electrons by H+ band EMIC waves
Authors: Cao Xing , Ni Binbin , Summers Danny , Bortnik Jacob , Tao Xin , Shprits Yuri Y. , Lou Yuequn , Gu Xudong , Fu Song , Shi Run , Xiang Zheng , Wang Qi
Published: February 2017

We perform a detailed analysis of bounce‐resonant pitch angle scattering of radiation belt electrons due to electromagnetic ion cyclotron (EMIC) waves. It is found that EMIC waves can resonate with near‐equatorially mirroring electrons over a wide range of L shells and energies. H+ band EMIC waves efficiently scatter radiation belt electrons of energy >100 keV from near 90° pitch angles to lower pitch angles where the cyclotron resonance mechanism can take over to further diffuse electrons into the loss cone. Bounce‐resonant electron pitch angle scattering rates show a strong dependence on L shell, wave normal angle distribution, and wave spectral properties. We find distinct quantitative differences between EMIC wave‐induced bounce‐resonant and cyclotron‐resonant diffusion coefficients. Cyclotron‐resonant electron scattering by EMIC waves has been well studied and found to be a potentially crucial electron scattering mechanism. The new investigation here demonstrates that bounce‐resonant electron scattering may also be very important. We conclude that bounce resonance scattering by EMIC waves should be incorporated into future modeling efforts of radiation belt electron dynamics.
Scale size‐dependent characteristics of the nightside aurora
Authors: Humberset B. K. , Gjerloev J. W. , Samara M. , Michell R. G.
Published: February 2017

We have determined the spatiotemporal characteristics of the magnetosphere‐ionosphere (M‐I) coupling using auroral imaging. Observations at fixed positions for an extended period of time are provided by a ground‐based all‐sky imager measuring the 557.7 nm auroral emissions. We report on a single event of nightside aurora (∼22 magnetic local time) preceding a substorm onset. To determine the spatiotemporal characteristics, we perform an innovative analysis of an all‐sky imager movie (19 min duration, images at 3.31 Hz) that combines a two‐dimensional spatial fast Fourier transform with a temporal correlation. We find a scale size‐dependent variability where the largest scale sizes are stable on timescales of minutes while the small scale sizes are more variable. When comparing two smaller time intervals of different types of auroral displays, we find a variation in their characteristics. The characteristics averaged over the event are in remarkable agreement with the spatiotemporal characteristics of the nightside field‐aligned currents during moderately disturbed times. Thus, two different electrodynamical parameters of the M‐I coupling show similar behavior. This gives independent support to the claim of a system behavior that uses repeatable solutions to transfer energy and momentum from the magnetosphere to the ionosphere.
Terrestrial gamma ray flashes due to particle acceleration in tropical storm systems
Authors: Roberts O. J. , Fitzpatrick G. , Priftis G. , Bedka K. , Chronis T. , McBreen S. , Briggs M. S. , Cramer E. , Mailyan B. , Stanbro M.
Published: February 2017

Terrestrial gamma ray flashes (TGFs) are submillisecond flashes of energetic radiation that are believed to emanate from intracloud lightning inside thunderstorms. This emission can be detected hundreds of kilometers from the source by space‐based observatories such as the Fermi Gamma‐ray Space Telescope (Fermi). The location of the TGF‐producing storms can be determined using very low frequency (VLF) radio measurements made simultaneously with the Fermi detection, allowing additional insight into the mechanisms which produce these phenomena. In this paper, we report 37 TGFs originating from tropical storm systems for the first time. Previous studies to gain insight into how tropical cyclones formed and how destructive they can be include the investigation of lightning flash rates and their dependence on storm evolution. We find TGFs to emanate from a broad range of distances from the storm centers. In hurricanes and severe tropical cyclones, the TGFs are observed to occur predominately from the outer rainbands. A majority of our sample also show TGFs occurring during the strengthening phase of the encompassing storm system. These results verify that TGF production closely follows when and where lightning predominately occurs in cyclones. The intrinsic characteristics of these TGFs were not found to differ from other TGFs reported in larger samples. We also find that some TGF‐producing storm cells in tropical storm systems far removed from land have a low number of WWLLN sferics. Although not unique to tropical cyclones, this TGF/sferic ratio may imply a high efficiency for the lightning in these storms to generate TGFs.
Predictable patterns of the May–June rainfall anomaly over East Asia
Authors: Xing Wen , Wang Bin , Yim So‐Young , Ha Kyung‐Ja
Published: February 2017

During early summer (May–June, MJ), East Asia (EA) subtropical front is a defining feature of Asian monsoon, which produces the most prominent precipitation band in the global subtropics. Here we show that dynamical prediction of early summer EA (20°N–45°N, 100°E–130°E) rainfall made by four coupled climate models' ensemble hindcast (1979–2010) yields only a moderate skill and cannot be used to estimate predictability. The present study uses an alternative, empirical orthogonal function (EOF)‐based physical‐empirical (P‐E) model approach to predict rainfall anomaly pattern and estimate its potential predictability. The first three leading modes are physically meaningful and can be, respectively, attributed to (a) the interaction between the anomalous western North Pacific subtropical high and underlying Indo‐Pacific warm ocean, (b) the forcing associated with North Pacific sea surface temperature (SST) anomaly, and (c) the development of equatorial central Pacific SST anomalies. A suite of P‐E models is established to forecast the first three leading principal components. All predictors are 0 month ahead of May, so the prediction here is named as a 0 month lead prediction. The cross‐validated hindcast results demonstrate that these modes may be predicted with significant temporal correlation skills (0.48–0.72). Using the predicted principal components and the corresponding EOF patterns, the total MJ rainfall anomaly was hindcasted for the period of 1979–2015. The time‐mean pattern correlation coefficient (PCC) score reaches 0.38, which is significantly higher than dynamical models' multimodel ensemble skill (0.21). The estimated potential maximum attainable PCC is around 0.65, suggesting that the dynamical prediction models may have large rooms to improve. Limitations and future work are discussed.
Coexistence of Grain‐Boundaries‐Assisted Bipolar and Threshold Resistive Switching in Multilayer Hexagonal Boron Nitride
Authors: Pan Chengbin , Ji Yanfeng , Xiao Na , Hui Fei , Tang Kechao , Guo Yuzheng , Xie Xiaoming , Puglisi Francesco M. , Larcher Luca , Miranda Enrique , Jiang Lanlan , Shi Yuanyuan , Valov Ilia , McIntyre Paul C. , Waser Rainer , Lanza Mario
Published: February 2017

The use of 2D materials to improve the capabilities of electronic devices is a promising strategy that has recently gained much interest in both academia and industry. However, while the research in 2D metallic and semiconducting materials is well established, detailed knowledge and applications of 2D insulators are still scarce. In this paper, the presence of resistive switching (RS) in multilayer hexagonal boron nitride (h‐BN) is studied using different electrode materials, and a family of h‐BN‐based resistive random access memories with tunable capabilities is engineered. The devices show the coexistence of forming free bipolar and threshold‐type RS with low operation voltages down to 0.4 V, high current on/off ratio up to 106, and long retention times above 10 h, as well as low variability. The RS is driven by the grain boundaries (GBs) in the polycrystalline h‐BN stack, which allow the penetration of metallic ions from adjacent electrodes. This reaction can be boosted by the generation of B vacancies, which are more abundant at the GBs. To the best of our knowledge, h‐BN is the first 2D material showing the coexistence of bipolar and threshold RS, which may open the door to additional functionalities and applications.
Engaging Disgust: How to Settle, Contemptuously!
Authors: Creo Robert A.
Published: February 2017

As addressed in last month's Part 1, disgust is primal as an emotion and motivator. Its fraternal twin, contempt, which is an attitude or belief, involves thought, conscious and unconscious, and can be modified by deliberative choices.