bluuebunny/crossref_metadata_2025 huggingface dataset:
A Provably-Secure ECC-Based Authentication Scheme for Wireless Sensor Networks
Authors: Nam Junghyun , Kim Moonseong , Paik Juryon , Lee Youngsook , Won Dongho
Published: November 2014

A smart-card-based user authentication scheme for wireless sensor networks (in short, a SUA-WSN scheme) is designed to restrict access to the sensor data only to users who are in possession of both a smart card and the corresponding password. While a significant number of SUA-WSN schemes have been suggested in recent years, their intended security properties lack formal definitions and proofs in a widely-accepted model. One consequence is that SUA-WSN schemes insecure against various attacks have proliferated. In this paper, we devise a security model for the analysis of SUA-WSN schemes by extending the widely-accepted model of Bellare, Pointcheval and Rogaway (2000). Our model provides formal definitions of authenticated key exchange and user anonymity while capturing side-channel attacks, as well as other common attacks. We also propose a new SUA-WSN scheme based on elliptic curve cryptography (ECC), and prove its security properties in our extended model. To the best of our knowledge, our proposed scheme is the first SUA-WSN scheme that provably achieves both authenticated key exchange and user anonymity. Our scheme is also computationally competitive with other ECC-based (non-provably secure) schemes.
VibeComm: Radio-Free Wireless Communication for Smart Devices Using Vibration
Authors: Hwang Inhwan , Cho Jungchan , Oh Songhwai
Published: November 2014

This paper proposes VibeComm, a novel communication method for smart devices using a built-in vibrator and accelerometer. The proposed approach is ideal for low-rate off-line communication, and its communication medium is an object on which smart devices are placed, such as tables and desks. When more than two smart devices are placed on an object and one device wants to transmit a message to the other devices, the transmitting device generates a sequence of vibrations. The vibrations are propagated through the object on which the devices are placed. The receiving devices analyze their accelerometer readings to decode incoming messages. The proposed method can be the alternative communication method when general types of radio communication methods are not available. VibeComm is implemented on Android smartphones, and a comprehensive set of experiments is conducted to show its feasibility.
iMuseumA: An Agent-Based Context-Aware Intelligent Museum System
Authors: Ayala Inmaculada , Amor Mercedes , Pinto Mónica , Fuentes Lidia , Gámez Nadia
Published: November 2014

Currently, museums provide their visitors with interactive tour guide applications that can be installed in mobile devices and provide timely tailor-made multimedia information about exhibits on display. In this paper, we argue that mobile devices not only could provide help to visitors, but also to museum staff. Our goal is to integrate, within the same system, multimedia tour guides with the management facilities required by museums. In this paper, we present iMuseumA (intelligent museum with agents), a mobile-based solution to customize visits and perform context-aware management tasks. iMuseumA follows an agent-based approach, which makes it possible to interact easily with the museum environment and make decisions based on its current status. This system is currently deployed in the Museum of Informatics at the Informatics School of the University of Málaga, and its main contributions are: (i) a mobile application that provides management facilities to museum staff by means of sensing and processing environmental data; (ii) providing an integrated solution for visitors, tour guides and museum staff that allows coordination and communication enrichment among different groups of users; (iii) using and benefiting from group communication for heterogeneous groups of users that can be created on demand.
A Statistical Perspective on Running with Prosthetic Lower-Limbs: An Advantage or Disadvantage?
Authors: Hassani Hossein , Ghodsi Mansi , Shadi Mehran , Noroozi Siamak , Dyer Bryce
Published: November 2014

Technological developments have led to the increased use of carbon fiber and prosthetic lower-limbs in running events at the Paralympic Games. This study aims to exploit a series of statistical techniques in order to prepare a response to the vital question of whether utilizing prosthetic feet can affect an athletes ability when running competitively at the Paralympics Games by comparing both within and between different classifications. The study also considers the differences between running on biological limbs and prosthetic lower-limbs from a mechanical point of view. The results from the male 100 m, 200 m and 400 m at the 2012 London Paralympic Games have been the source of this investigation. The investigation provides statistical evidence to propose that the number of prosthetic limbs used and the structure of such limbs have a significant impact on the outcome of track events at the Paralympic Games.
L'influence de la littérature sur les représentations de la ville. L'exemple de la « ville tentaculaire » ou l'instrumentalisation politique d'une matrice poétique (The influence of literature on cities representations — the example of the "tentacular city" or the political instrumentalisation of a poetic matrix)
Authors: Molina Géraldine
Published: November 2014

An evidence of the representation of the world and thus of space, an effective pedagogical medium, an attractive ornamentation by the way of quotations or epigraph, such are the main known and recognised uses of literature in Geography. Beyond these various approaches, which relevance is no longer to be demonstrated, literature could be considered for its efficiency, for its role in the formation of space representations and more particularly in urban representations. This issue corresponds to the orientation given to a current research work which some ins and outs will be given in this article. The presuppositions underlying the reflection of literature as a source for the creation of matrix that structure urban representations will be provided in a short theoretical approach. Then, a case study will be proposed in order to give an understanding of the process through which these matrixes are reintroduced or instrumentalised by different urban actors and integrated in the strategies implied in the urban making and evolution. The matter in hand is the political instrumentalisation of the tentacular urban matrix born in Belgian poet Emile Verhaeren's work in the speech on decentralisation and large complexes of French President de Gaulle 's construction minister, Pierre Sudreau.
La recomposition des marginalités à Durban (The evolution of marginalities in Durban)
Authors: Vermeulin Stéphane
Published: November 2014

En Afrique du Sud, la marginalité a longtemps désigné l 'ensemble des habitants que l'apartheid ne parvenait pas à contrôler. Depuis plus d'une décennie, la marginalité se recompose dans des métropoles, à la fois soucieuses d'intégrer les populations historiquement défavorisées et déterminées à faciliter le développement économique local. Le cas de Durban met en lumière certaines de ces transformations.
Interventions to Increase Physician Efficiency and Comfort with an Electronic Health Record System
Authors: Jalota L. , Aryal M. R. , Mahmood M. , Wasser T. , Donato A.
Published: November 2014

Objective: To determine comfort when using the Electronic Health Record (EHR) and increase in documentation efficiency after an educational intervention for physicians to improve their transition to a new EHR.

Methods: This study was a single-center randomized, parallel, non-blinded controlled trial of real-time, focused educational interventions by physician peers in addition to usual training in the intervention arm compared with usual training in the control arm. Participants were 44 internal medicine physi cians and residents stratified to groups using a survey of comfort with electronic media during rollout of a system-wide EHR and order entry system. Outcomes were median time to complete a progress note, notes completed after shift, and comfort with EHR at 20 and 40 shifts.

Results: In the intervention group, 73 education sessions averaging 14.4 (SD: 7.7) minutes were completed with intervention group participants, who received an average of 3.47 (SD: 2.1) interventions. Intervention group participants decreased their time to complete a progress note more quickly than controls over 30 shifts (p < 0.001) and recorded significantly fewer progress notes after scheduled duty hours (77 versus 292, p < 0.001). Comfort with EHRs increased significantly in both groups from baseline but did not differ significantly by group. Intervention group participants felt that the intervention was more helpful than their standard training (3.47 versus 1.95 on 4-point scale).

Conclusion: Physicians teaching physicians during clinical work improved physician efficiency but not comfort with EHRs. More study is needed to determine best methods to assist those most challenged with new EHR rollouts.
From Bench to Bed: Bridging from Informatics Theory to Practice
Authors: Haux R. , Lehmann C. U.
Published: November 2014

Background: In 2009, the journal Applied Clinical Informatics (ACI) commenced publication. Focused on applications in clinical informatics, ACI was intended to be a companion journal to Methods of Information in Medicine (MIM). Both journals are official journals of IMIA, the International Medical Informatics Association.

Objectives: To explore, after five years, which congruencies and interdependencies exist in publications of these journals and to determine if gaps exist. To achieve this goal, major topics discussed in ACI and in MIM had to be analysed. Finally, we wanted to explore, whether the intention of publishing these companion journals to provide an information bridge from informatics theory to informatics practice and from practice to theory could be supported by this model. In this manuscript we will report on congruencies and interdependencies from practise to theory and on major topis in ACI. Further results will be reported in a second paper.

Methods: Retrospective, prolective observational study on recent publications of ACI and MIM. All publications of the years 2012 and 2013 from these journals were indexed and analysed.

Results: Hundred and ninety-six publications have been analysed (87 ACI, 109 MIM). In ACI publications addressed care coordination, shared decision support, and provider communication in its importance for complex patient care and safety and quality. Other major themes included improving clinical documentation quality and efficiency, effectiveness of clinical decision support and alerts, implementation of health information technology systems including discussion of failures and succeses. An emerging topic in the years analyzed was a focus on health information technology to predict and prevent hospital admissions and managing population health including the application of mobile health technology. Congruencies between journals could be found in themes, but with different focus in its contents. Interdependencies from practise to theory found in these publications, were only limited.

Conclusions: Bridging from informatics theory to practise and vice versa remains a major component of successful research and practise as well as a major challenge.
Encapsulation of biocides by cyclodextrins: toward synergistic effects against pathogens
Authors: Nardello-Rataj Véronique , Leclercq Loïc
Published: November 2014

Host–guest chemistry is useful for the construction of nanosized objects. Some of the widely used hosts are probably the cyclodextrins (CDs). CDs can form water-soluble complexes with numerous hydrophobic compounds. They have been widespread used in medicine, drug delivery and are of interest for the biocides encapsulation. Indeed, this enables the development of more or less complex systems that release antimicrobial agents with time. In this paper, the general features of CDs and their applications in the field of biocides have been reviewed. As the key point is the formation of biocide–CD inclusion complexes, this review deals with this in depth and the advantages of biocide encapsulation are highlighted throughout several examples from the literature. Finally, some future directions of investigation have been proposed. We hope that scientists studying biocide applications receive inspiration from this review to exploit the opportunities offered by CDs in their respective research areas.
One-Step Transepithelial Photorefractive Keratectomy With Mitomycin C as an Early Treatment for LASIK Flap Buttonhole Formation
Authors: Abdulaal Marwan R. , Wehbe Hanine A. , Awwad Shady T.
Published: November 2014

PURPOSE:

To assess the efficacy and safety of early one-step transepithelial photorefractive keratectomy (PRK) with mitomycin C as treatment for buttonhole formation during LASIK.

METHODS:

Eight patients who developed a buttonhole during LASIK with mechanical or femtosecond flap creation underwent one-step transepithelial PRK a few days after the formation of the buttonhole. The re-treatment procedure was performed after complete epithelial healing and smooth epithelial fluorescein profile were ensured. Postoperative manifest refraction, uncorrected and corrected distance visual acuity, and haze formation were assessed during 6 months of follow-up.

RESULTS:

Mean duration of the re-treatment procedure after buttonhole formation was 5 days (range: 4 to 7 days). Mean manifest refractive spherical equivalent and cylinder refraction were −0.05 ± 0.18 and −0.18 ± 0.22 diopters, respectively, at 6 months postoperatively. Uncorrected distance visual acuity was 20/20 in all patients after 3 months of follow-up. No haze formation was detected.

CONCLUSIONS:

Early one-step transepithelial PRK with mitomycin C seems to be a safe and effective treatment for LASIK buttonhole complication.

[
J Refract Surg
. 2015;31(1):48–52.]
Carnival in the Old World and the New
Authors: Burke Peter
Published: November 2014

La bibliografía sobre el carnaval permite distinguir tres interpretaciones diferentes de esta fiesta, ya expuestas en el siglo XVI. El autor, sin embargo, siguiendo a Caro Baroja, se niega a tener que elegir a cualquiera de ellas como la más adecuada. «El festival —escribe— era proteico; atraía a diferentes personas por razones diferentes». Además, ha cambiado en el tiempo y en el espacio. Cuando fue llevado a América por inmigrantes mediterráneos, se transformó como resultado de la transculturación; incorporando, por ejemplo, componentes africanos que no tenía el carnaval europeo. No obstante, su desarrollo en América en los dos últimos siglos ha repetido el que tuvo en Europa entre los siglos XVI y XIX.
Robada, prostituida, restituida, y siempre virgen. El caso de N.ª S.ª de Madrid (tradición oral y tradición escrita)
Authors: Cea Gutiérrez Antonio
Published: November 2014

Se analiza, a través de una Relación anónima del siglo XVII, la trayectoria biográfica de una imagen de la Virgen: sus orígenes legendarios, el robo y su utilización sacrílega como señuelo en una casa de prostitución y la restauración de su culto en un hospital hasta llegar a constituirse en patrona de Madrid, asimilando como advocación el nombre de esta villa. Ese manuscrito, fruto de la fusión de documentos jurídicos, concejiles y de la crónica de un devoto que hace las veces de informante, se contrasta con un texto impreso y contemporáneo de Juan de Zabaleta, que glosa y comenta la Relación, y publica, además, un repertorio de milagros de esta Virgen. Se estudia la pérdida y posterior recuperación de la memoria colectiva a través de unos textos de gran riqueza etnográfica y antropológica, donde se funden la tradición oral y la escrita.
En torno a la cultura popular y los conceptos de cultura: Contribuciones a un debate permanente
Authors: Díaz G. Viana Luis
Published: November 2014

«Cultura popular» es un término confuso y un asunto difícil de aprehender. Historiadores y antropólogos se han visto afectados por ello durante mucho tiempo y conocen bien las dificultades que tiene el caracterizar lo que es o no «cultura popular» en uno u otro período de la historia de Europa. De otro lado, aquí se propone que la «invención» de la «cultura popular» comienza a producirse en nuestro ámbito mucho antes de lo que generalmente se viene suponiendo, con la persecución del paganismo. El propósito de este trabajo consiste en mostrar que la discusión sobre la «cultura popular» tiene más relación con el concepto de «cultura» que con los diferentes significados que demos a las palabras «popular» o «pueblo».
A personal memoir
Authors: Pitt-Rivers Julian
Published: November 2014

Como un añadido personal al libro Los Baroja, el autor escribe aquí sus propios recuerdos cuando en los primeros años 50 veía a Julio Caro Baroja, a su tío Pío y a su otro tío, Ricardo, el pintor. El autor aprendió mucho de estos encuentros. Le llamaba la atención la fortaleza ética de don Julio y lo mucho que sabía de España, teniendo cosas el país que no le gustaban, como las corridas de toros. De don Pío recuerda el espíritu antropológico que latía en sus ideas, lo que es poco conocido. En cuanto a don Ricardo, su alegría y optimismo ante la vida contrastaban con la personalidad de su hermano y su sobrino, y con el contenido de sus propias pinturas.
Clasicismo y génesis disciplinar antropológica: el caso de Julio Caro Baroja
Authors: Del Pino Díaz Fermín
Published: November 2014

Se presenta la tesis del origen renacentista de la antropología (Rowe, 1965), de acuerdo a la definición de ésta como reconocimiento legítimo de las diferencias entre las sociedades, hecho posible por la idealización renacentista de las sociedades clásicas y la autocrítica de su propio etnocentrismo. Se analizan luego las consecuencias de esta hipótesis dentro de la historia antropológica en la Edad Moderna y Contemporánea, y se aplica al caso de Julio Caro Baroja como si fuera un «microcosmos» de la historia antropológica general por su educación como historiador del mundo antiguo y su autodefinición como historiador y antropólogo.
El Clauer en Ibiza a partir de la documentación del s. XVII. (Aspectos formales, sociales y simbólicos)
Authors: Mateu Prats M.ª Lena
Published: November 2014

El clauer, portado tradicionalmente por las ibicencas, es un ejemplo de las joyas que se llevaban colgando desde la cintura. Los Protocolos isleños reflejan la configuración de dicho clauer, y el papel que desempeñaba en los derechos consuetudinarios de dote y herencia. Se analiza su especial relación con la boda, sus connotaciones sociales y simbólicas y su íntima conexión con la indumentaria. A los paralelismos detectados en el archipiélago, se suman otros que ilustran sobre la generalización de este elemento, y su antigüedad, que es posible retrotraer hasta el siglo XIII.
Proceso evolutivo de los rituales de conquista en España
Authors: Brisset Demetrio
Published: November 2014

Hay un vasto complejo festivo ritual que ha tenido y sigue teniendo gran popularidad en la cultura hispánica: el de las teatralizadas representaciones de la conquista de un bando sobre otro. Con el fin de interpretar su más profundo significado, se delimitará y someterá a un estudio comparativo morfológico, histórico y cultural (en la línea desarrollada por Caro Baroja), en busca de las diversas influencias que, a lo largo de muchos siglos, lo han ido transformando, hasta ocultar sus mensajes originarios.
Naturaleza, religión y cultura tradicional: Un ensayo sobre el pensamiento rústico
Authors: Calavia Sáez Óscar
Published: November 2014

Los elementos naturales presentes en el folklore religioso de La Rioja, en el norte de España, árboles, toros y abejas, en primer plano, son analizados en este estudio en sus componentes sociológicos (las ideas que reflejan sobre consanguinidad, alianza e identidad de grupo) y organizados en una sucinta cosmología, que incluye nociones sobre el cuerpo, los géneros y la propia «naturaleza». Se explora la virtualidad de un «pensamiento rústico», diferente del cristianismo pero contemporáneo suyo (no una mera supervivencia del pasado) y el lugar que ocupa en la historia del catolicismo español.
La diversidad etnológica y alimentaria en la encrucijada de la conservación y el desarrollo
Authors: Gispert Cruells Montserrat , Álvarez de Zayas Alberto
Published: November 2014

No disponible
Aportación al estudio de la alfarería femenina en la Península Ibérica: La cerámica histórica de Alcorcón (Madrid)
Authors: Fernández Montes Matilde
Published: November 2014

El artículo centrado en noticias de los siglos XVI al XIX sobre la cerámica de Alcorcón (Madrid), pone en evidencia el carácter femenino de la actividad en la época y sus principales aspectos junto con la problemática que acarreó su decadencia. Además, al hilo de los datos aportados se realiza una comparación y una reflexión generalizada sobre la alfarería femenina en la Península Ibérica, y las posibles migraciones que dieron lugar a su presencia en unos y otros puntos geográficos.
Estrofas en vascuence al Dos de Mayo y poesía en el mismo idioma sobre la Guerra de la Independencia
Authors: Zavala Antonio
Published: November 2014

No disponible
El viento y la covada. Mitos y ritos de las Baleares
Authors: Roque Maria-Ángels
Published: November 2014

A través del trabajo de campo en las Baleares y Pitiusas, se expone en el presente artículo que la covada ha existido en estas islas hasta fecha relativamente reciente, y que supone, primordialmente, un ritual de carácter jurídico en el cual el padre es socialmente reconocido como progenitor del recién nacido. Esta característica sociológica refuerza, por otro lado, los aspectos míticos y rituales que confieren a determinados elementos naturales las características anímicas constitutivas de la persona.
Presencia indígena en el léxico del Códice Tudela
Authors: Hernández Esther
Published: November 2014

Este estudio analiza el léxico español de procedencia indígena en un tipo de texto que hasta ahora no ha sido utilizado como fuente por los americanistas. Se trata de un manuscrito mexicano de mediados del siglo XVI que contiene pinturas y texto español y que se halla en el Museo de América de Madrid: el Códice Tudela. Los préstamos indígenas que presenta constituyen pruebas tempranas de la influencia de las lenguas americanas en español, en particular de la lengua náhualt. El análisis se ha enfocado en dos direcciones complementarias: de los campos semánticos de los préstamos y de su persistencia en las hablas actuales.
Photography and Anthropological intention in Nineteenth Century Britain
Authors: Edwards Elizabeth
Published: November 2014

El ensayo ofrece una visión crítica de la relación entre antropología y fotografía en el siglo XIX hasta el período de entreguerras en la Gran Bretaña, estudiándose, en concreto, la expresión visual que adoptó la antropología en su proceso de construcción como disciplina científica, teniendo presente el fuerte paralelismo existente entre su desarrollo y el de la fotografía.
La antropología (audio)visual frente a las Nuevas Tecnologías de la Información y la Comunicación. Apuntes en torno a una reflexión
Authors: Grau Rebollo Jorge
Published: November 2014

Las llamadas Nuevas Tecnologías de la Información y la Comunicación (NTIC) están siendo objeto de un incipiente debate en el área de las Ciencias Sociales. La difusión y arraigo de estas nuevas tecnologías en la práctica social comportan la modificación de nuestros hábitos y costumbres en función de la implantación de nuevos instrumentos en nuestro quehacer cotidiano. Este artículo pretende una reflexión, alumbrada desde la perspectiva antropológica en general (y de la antropología audiovisual en particular), acerca del impacto que desde el punto de vista sociocultural están teniendo las NTIC. Con ello se pretende reconceptualizar nociones como «tecnociencia», «identidad», «realidad virtual» o «redes sociales», entre otras. La conclusión invita a examinar el fenómeno en su repercusión social más cotidiana, a saber: los usos que a diario hacemos de televisión por cable o Internet, el espacio (físico y conceptual) que ocupan en nuestras vidas y la ubicación en nuestra escala de valores del uso de instrumentos tecnológicos y del saber tecnocientífico que se les asocia.
Music and the Re-creation of Identity in Imagined Iberian Jewish Communities
Authors: Cohen Judith R.
Published: November 2014

Tanto en España como en Portugal, en las décadas de los 80 y 90, se identifican cada vez más restos y vestigios de la presencia de los judíos, y se ha hecho una promoción importante académica y turística de éstos. En algunos casos, esa identificación ha ido junto con una identificación individual con el judaísmo contemporáneo; en el caso de un pueblo portugués, una comunidad entera. Sin embargo, un resultado más visible ha sido la creación de festivales de comunidades judías «imaginadas». Ese artículo utiliza la antropología del turismo para examinar asuntos de autenticidad, apropiación e indicadores de identidad. Concretamente, enfoca el uso y la función de la música sefardí en festivales de creación reciente en dos pueblos del Camino de Sefarad: Ribadavia (Galicia) y Hervás (Extremadura).
Orientalismos peninsulares en el levante andaluz. Nombres y usos de algunas plantas silvestres
Authors: Torres Montes Francisco
Published: November 2014

En este estudio se presentan algunas plantas silvestres de Almería, Granada y Jaén cuyos nombres vulgares proceden del oriente peninsular. De cada planta se da, junto al nombre vulgar y científico, la isoglosa o límite de los orientalismos y sus correspondientes áreas léxicas. Al mismo tiempo se hace el estudio etnográfico de sus usos en la medicina popular o doméstica, ritos religiosos, ganadería, etc.
Usos lingüísticos de las actividades vinícolas riojanas
Authors: Martínez Ezquerro Aurora
Published: November 2014

Se muestra el léxico vivo utilizado en diferentes actividades relacionadas con el vino riojano, desde las labores previas a la vendimia hasta el proceso de vinificación, sin olvidar los instrumentos que se utilizan en estas faenas ni los oficios con ellas relacionados: los de boteros, alfareros y toneleros. Al final se ofrece la caracterización lingüística de Jls términos recogidos, muchos de ellos en vías de extinción. El corpus ofrecido ha sido tomado de conversaciones semidirigidas con personas cuya labor cotidiana se halla relacionada con el sector vinícola en su vertiente más tradicional. Este elenco se ha complementado con bibliografía dialectal de la zona. En la organización de este repertorio léxico se desarrollan de forma narrativa los discursos ofrecidos por los informantes en los que se explican las labores vinícolas en su contexto.
«Le militantisme intimiste»: Expression d'un syndicalisme d'ingénieurs et de cadres
Authors: Castelot Anne-Sandrine
Published: November 2014

El sindicalismo de los ingenieros y de los cuadros está considerado como atípico, debido a su cultura profesional. Ser ingeniero y cuadro representa tanto un estatus social como una profesión. En el imaginario social, simbolizan el éxito escolar y profesional de las ocupaciones liberales. En la empresa, son asimilados a la dirección, a su sistema de valores, normas y comportamientos. Por ello son descritos como individualistas, ajenos a los compromisos colectivos y antisindicalistas. Sin embargo, la multiplicación de la categoría socioprofesional y el aumento considerable de nuevas jerarquías empujan a los ingenieros y cuadros a implicarse en la militancia sindical. Su militancia particular, definida como un "militantismo intimista", subraya la importancia de las razones de su compromiso.
Mujeres en Yucatán: Nuevas figuras obreras a partir del modelo maquilador extranjero
Authors: Castilla R. Beatriz , Torres G. Beatriz
Published: November 2014

El presente artículo ofrece una visión panorámica de la industria maquiladora de exportación en Yucatán, México, poniendo el acento en el surgimiento de nuevas figuras obreras que resultan ser, en esencia, mujeres cuyas trayectorias laborales las han convertido en nuevos actores de estos procesos socioeconómicos. El tema se inscribe en el campo de los estudios sobre la mundialización y la heterogeneidad que ésta conlleva en socioterritorios específicos.
The Effect of Text Chat Assisted with Word Processors on Saudi English Major Students' Writing Accuracy and Productivity of Authentic Texts
Authors: Batianeh Ahmad Mosa
Published: November 2014

AbstractÙ€Ù€-This study explored the effects of using online chat and word processors on students' writing skills that include; organizing a text, spelling, punctuation, grammar, phrasal verbs, idioms, idiomatic expressions, pragmatics, creativity, vocabulary growth, content, relational words, conjunctions, authenticity, figures of speech, imagination, coherence, style, socio-cultural aspects, language use, and the production of authentic text. The study group consisted of students in the Department of Languages and Translation at Taibah University who registered for the Writing Two course in the first semester of the 2012 - 2013 academic year. Fourty subjects were divided into two sections: section one was assigned as an experimental group (supported by Facebook and Skype) and section two was assigned as a control group and was asked to write their essays with paper and pencil. Facebook and Skype accounts were created for every student in the experimental group. Data was analyzed from pre-test and post-test results to evaluate the question posed by the study: Does the use of online text chat assisted with word processors help undergraduate students develop their writing skills more than traditional methods of teaching? The results revealed that students who worked with Facebook and Skype showed a significant improvement in their writing skills when compared to the control group. In light of these findings, it is recommended that online discussions via Facebook, Skype, and other social media sites should be utilized when teaching writing and the other language skills.
Comparison of Effectiveness of Different Learning Technologies
Authors: El-Khalili Nuha H. , El Ghalayini Haya
Published: November 2014

E-learning has become one of the powerful supporting tools that expand traditional teaching in higher education. Designers of learning objects (LOs) for blended learning higher education face number of challenges; one of them is choosing the right technology to develop learning objects. This study adopts the Bloom-Redeker-Guerra (B-R-G) mapping model which guides designers to transform the contents and objectives of a traditional course into a number of suggested LOs for a blended course. The study attempts to empirically validate the first dimension of its evaluation scale which measures the effectiveness of learning objects that targets achieving lower order thinking skills (i.e. Knowledge and Comprehension) according to Bloom's Taxonomy. This paper presents the results of the empirical study that validates the students' learning achievement and students' perceived satisfaction differ for receptive learning objects that have been developed with different learning technologies. The empirical study has been implemented using pretest-posttest experiments, in addition to a questionnaire that measures students' satisfaction. Participants were about 100 Information Technology (IT) students enrolled in different courses. Results show that students' learning achievement and students' perceived satisfaction improve with learning objects designed with advanced learning technologies (according to Guerra scale), hence better achieve the targeted learning objectives.
Mathematics Gaming in Early Childhood
Authors: Salinas Alejandra , Ly Chu
Published: November 2014

Use of technology and video games are highlighted as important mathematical practices as part of the Common Core State Standards (2010). However, research around technology use in early childhood classrooms, particularly the use of video games that target specific content, is sparse. This chapter briefly reviews the existing literature around these topics. Moreover, it describes the moves an expert teacher incorporates into her practice to effectively and appropriately integrate instructional video games as a tool for learning mathematics in a kindergarten classroom. Results of this case study indicate that when integrated appropriately, video games and the use of Interactive White Boards (IWB) can lead to an increase in children's motivation and engagement with learning mathematics.
Exploring Video Sharing Websites Content with Machine Learning
Authors: Zhao Nan , Baud Löic , Bellot Patrick
Published: November 2014

This article studies the characteristics of content on video sharing websites. A better understanding on online video content can help to analyse Internet users' behaviour and improve the video-sharing service. We improved an existing graph-sampling algorithm so that it could be more adapted to sample over the video sharing websites. A newly category system is defined in this paper, which can be applied on many different video sharing websites for content analysis. We also implement machine learning to realize the content re-classification with the newly defined category system. The efficiency reaches at 90%. From the classified content analysis, we find the content category distribution is not constant, and nowadays, cultural goods content take about 70% over all the sampled videos.
Consumer Confusion in Mobile Application Buying
Authors: Ghosh Tathagata , Rao Venu Gopal
Published: November 2014

This study aims to examine effects of consumer confusion proneness on two consumer behavior variables, word of mouth and buying decision, in a confusion prone product market like smartphone and mobile applications (app). Additionally, the study examines the moderating influence of a personality trait variable pertinent to information processing – need for cognition, on the afore-mentioned relationships. Data were collected via a survey from 254 post-graduate students and analyzed with the help of structural equation modeling with a partial least square (PLS) approach using SmartPLS 2.0. Research findings indicate that the dimensions of consumer confusion proneness behave differently in terms of their linkages with consumer behavior. Further, as expected, consumers' need for cognition also play a major moderating role which helps to fathom the concept of consume confusion in the context of mobile and smartphone applications. Academic and managerial implications as well as scope for future research are also discussed.
Evaluating the Internal and External Factors Toward ERP Success
Authors: Seyal Afzaal H. , Rahman Mohd Noah Abd
Published: November 2014

The primary purpose of this study is to investigate the role of top management support, government support, the impact of business vision, external expertise and perceived benefits in assessing the success of Enterprise Resource Planning (ERP) system. The study uses survey approach of 150 business firms selected randomly from Brunei Yellow Pages. 45 out of them are practicising ERP for the year and more and are included in this study. Data analyzed by PSW-18 software support the majority of the previous findings that all the contextual variables used are significant, except the top management support. These results are compared with existing studies and the implications of the findings for practice are discussed.
Characteristics of Landscape (Land Use) Change and its Driving Force in County - A Case Study of Shunyi District of Beijing
Authors: Shi Shuai , Chen Zhi Hui , Qi Ji , Liu Yun
Published: November 2014

Based on land use data and social economy data in 1999 and 2005, this article analyzed the spatial-temporal characteristics and driving factors of the land use change in Shunyi district by GIS technology and logistic regression analysis method. The result showed that transformation among different land use was dramatically changed from 1999 to 2005, such as the increase of construction land and the decrease of cultivated land and water area. Land transfer was mainly cultivated land to construction land, forest land, garden land, other land use; forest land to grass land and water area to cultivated land. The area of land changed from cultivated land to construction land was 14250.2hm2, and the ratio of the change is 20.09%; the changed land area from forest land to grass land was 887.6hm2 with 17.85% of changed ratio; the transformation area from water area to agricultural land was 1099.7hm2 and 23.75% of transformation ratio. The development of secondary and tertiary industry is the major driving factor of land use change from cultivated land to construction land, while the major reason for the changes from forest land to grass land and from water area to cultivated land was that the Caobai river has been dried up.
The Effects of Soft Leaching with Citric Acid on Soil P Release Characteristic
Authors: Feng Chen , Zheng Jia Ming , Feng Liang Shan , Yu Xiu Jie , Wang Peng Fei , Sun Zhan Xiang , Guan Lian Zhu
Published: November 2014

In this study, the soil column experiment was adopted to investigated the release characteristic of P from soil by citric acid leaching. The results showed that the P release characteristics were different from each other under various citrate concentrations. At high concentration (50 mM) treatment, P concentration of effluents increased rapidly with effluent volume at the beginning, reached the maximum value after approximately 150 ml solution had passed through the columns. For the column treated with 5 mM of citric acid, the P in leachates was increased gradually to the maximum concentration, and then approached a relatively stable level during the 1000-3050 ml effluent volume. For low concentration (0.5 mM) treatment, the level of P in the effluents has always been very low, though a small peak was observed during the leaching.
Application of Ceramic Membrane Technology in Tungsten Fine Particle Concentration Process
Authors: Huang Wan Fu , Wang Xiao Feng , Li Xin Dong , Yan Si Ming
Published: November 2014

This study used ceramic membrane technology to concentrate tungsten fine particles for its inefficient recycling issue. Factors affecting the membrane concentration test were discussed, and the results show that: under the feed flow of 7000 mL/min, concentration time of 3 hours, and concentration liquid flow of 500 mL/min, it is the optimal effect of ceramic membrane concentration tungsten fine particle, which the interception rate reaches more than 99%, the membrane permeation flux can be nearly reach 470mL/(min×1099cm2) above, and concentrate concentration can be basically stable at around 29% . Ceramic membrane flux recovery rate can be as high as 93% by 7 minutes backwashing firstly and then 2 minutes forward cleaning.
Experimental Study on the Lateral Compression Energy Absorption Characteristics of Hexagonal Steel Tube Filled with Polyurethane Foam
Authors: Zhou Zhao Peng , Liu Fei , Gao Yong Hong , Xue Fan Xi
Published: November 2014

From the previous researches, the author of this paper finds that the steel tube with the hexagonal section under the lateral compression has a good energy absorption property. In order to further enhance the energy absorption of the steel tube with the hexagonal section, this paper develops the polyurethane foam filled hexagonal steel tube, and through experiment, studies its characteristics of lateral compression energy absorption, and makes the comparative analysis against the hollow hexagonal steel tube. The results show that the hexagonal section steel tube filled with polyurethane foam has substantially growth in both the loads of the yield platform and the energy absorption capability.
Dependence of Stability of Sr5(AsO4)3OH on pH Value
Authors: Huang Yan Hua , Li Zong Ning , Qin Hui , Zhu Zong Qiang , Zhu Yi Nian , Dai Liu Qin , Niu Yan Long
Published: November 2014

The object of this work was to determine the solubility and stability of the synthetic Sr5(AsO4)3OH solid solution at 25°C and the different initial pHs (pH at 2, 6 and 9) by batch dissolution experiments. The results indicated that with the initial pH value of 2, 6 and 9, the reaction system reached equilibrium after 2880h, and by that time the pH value of the solution reached, 7.90, 8.74 and 8.27 respectively. The concentration of strontium and arsenic in the initial solution pH at 2 are higher than that of solutions pH at 6 and 9. While the concentration of strontium in neutral or alkaline solutions is low and stays unchanged.
Effect of the Ratio of Si-H/C=C on the Properties of Organosilicone Gel Materials for Large-Power LED Encapsulation
Authors: Yan Ran , Xiang Pan , Cheng Yan Fang , Yang Chao Jin , Li Yang , Yang Ming Shan
Published: November 2014

The organosilicone gel material for large-power LED packaging was prepared through Si-H addition reaction of hydrogen-silicone with vinyl-silicone catalyzed by Pt coordination compound in the paper. The effect of Si-H/C=C ratio on thermal stability, shore hardness, visible light transmittance and tensile properties were investigated by FTIR, UV-vis spectrometer, etc., which supplied the basic data for the preparation and application of organosilicone materials for large-power LED packaging.
Numerical Analysis of Effective Conditions of Chemical Reaction Suppression during Typical Forest Fuel Material Combustion
Authors: Zhdanova Alena O. , Kuznetsov Genii V. , Strizhak Pavel A.
Published: November 2014

Three typical solution schemes of adjoint problems of heat transfer, phase transformations and chemical reaction at the forest fuel material surface were analyzed in this work. Characteristic times of thermal decomposition reaction suppression of forest fuel materials (needles of pine and fir-tree, leaves of birch) were presented for concerned heat transfer models. Effective heat exchange conditions which are characterized by minimal times of chemical reaction suppression in forest fuel materials and minimal extinguishing agent's expenditure were established.
Effect of Different Curing Catalysts on Curing Behavior of Transparent Epoxy Molding Compound for SMD LED Packaging
Authors: Cheng Yan Fang , Zhou Ying , Yan Ran , Chen Yuan Kai , Liang Ming , Lin Yang Jie , Yang Ming Shan
Published: November 2014

The transparent epoxy molding compound (EMC) for integrated circuits (IC) packaging was prepared by using tetrahydromethyl-1,3-isobenzofurandione as curing agent, respectively using 2-methyl imidazole and triphenyl phosphine as curing accelerator. The effect of curing accelerator type on curing behavior of EMC was investigated by non-isothermal DSC method in this paper. Based on Kissinger method, Crane method and Ozawa method, the kinetic parameters such as activation energy and reaction order of the curing reaction were obtained. The characteristic temperatures of the curing process such as gel temperature, curing temperature and post-curing temperature were calculated by extrapolation. The results showed that EMC with 2-methyl imidazole had a lower activation energy compared to EMC with triphenyl phosphine, which provided the basic data for the optimal recipe of EMC and the determination of IC packaging technologies.
Equivalent Analogy Research on Filtration Resistance of Wet Fiber Layer for Mine Particles
Authors: Chen Xi Shan , Zhang Yong Liang , Wang Yu Hua
Published: November 2014

The hypothesis of the flushing fluid that is evenly distributed and flowing on the surface of the wet filtering layer fiber was first introduced in the paper, on which the concept of equivalent diameter of the composite trap was given to build the theoretical model of filtration resistance of wet fiber layer for aerosol particles, therefore the theoretical formula of wet filtration resistance has been derived, making possible the theoretical research on the filtration and purification resistance of wet fiber layer for dust particles. Based on the theoretical analysis, a semi-theoretical and semi-empirical formula that can be applied to the practical use has been eventually obtained by means of the necessary dimensionless correction of the theoretical results through simulation experiments, the formula and the methods of research questions are of guiding significance and conductive to the filtration and purification of wet fiber layer for aerosol particles.
Study of Absorption of Heavy Metals (Pb,Cu) in Phragmites australis in Lingang New City
Authors: Jiao Min , Li Xiang , Liu Jing Yu , Tian Yong Qiang , Huang Yu , Gao Chun Mei , Chen Xin Jun
Published: November 2014

Analysis on the concentrations of Pb, Cu in the roots, stems, leaves of phragmites australis which grows on Lingang New City of Shanghai showed that both of Pb, Cu in roots were higher concentrations than that in stems and leaves; the absorption of Pb,Cu had obvious seasonal variation; in winter, the enrichment of Pb, Cu in phranmites autralis was occurred and the enrichment ability of Pb was higher than Cu,
Sol-Gel Derived Strong Green Phosphor Zn2SiO4: Mn2+ and the Luminescent Properties
Authors: Wang Yi , Huang Cheng Bin , Xie Pai Bin , Li Song Ju , Chen Zhi Wei , He Jian Hui
Published: November 2014

Being added by H3BO3 as flux, the nanosize strong green phosphor Zn2SiO4: Mn2+ was prepared by an improved sol-gel method. The structure and the morphology of the samples were examined by XRD, UV-VL spectrophotometer and SEM. The photoluminescence properties were measured by fluorescence spectrometer. Results show that, when the samples were annealed at 850°C for 2 hours, the intensity of emission spectrum of the sample is not strictly followed the monotonically increasing with the increase of Mn2+ doping concentration. It appears in a fluctuated tendency with the increase of doping concentration. In the 4% Mn2+ doping concentration and annealing temperature 950°C, the most strong green emission spectrum can be obtained. The mechanism of luminescence properties of this kind of material is analyzed.
Microstructure of AZ61 Magnesium Alloy by Equal Channel Angular Extrusion
Authors: Wu Dan , Lu Ya Lin , Li Xing Cheng , Xu Wen Ting , Chen Guo Yan
Published: November 2014

Microstructural evolution of AZ61 magnesium alloy was analyzed after ECAE process. This research focused on the effects of deformation temperature and extrusion passes on microstructure of AZ61 magnesium alloy. The results showed that microstructure have not improved significantly at the lower temperature. Grains can be refined greatly at deformation temperature of 370°C. With an increase of extrusion passes, grains tend to be much refined, which is beneficial to obtaining good property.