bluuebunny/crossref_metadata_2025_split huggingface dataset:
The ConRed Program, an Evidence-based Practice
Authors: del-Rey-Alamillo Rosario , Casas José-A. , Ortega-Ruiz Rosario 
Published: July 2012

The incredible force with which ITCs have arrived in society and the consequent risks to children when dealing with the Internet and social networks make it necessary for the domain of virtual environments to be included in the school curriculum. However, the initiatives in this direction are limited and there is a lack of rigorously evaluated programs that might act as a basis for designing educational lines of action. The ConRed Program is based on the theory of normative social behavior and aims to reduce problems such as cyber-bullying and addiction to the Internet and refocus the misadjusted perception of information control in the social networks in order to promote their use in a more beneficial way. The ConRed Program has been evaluated using a quasi-experimental methodology, with an experimental group (N=595) and a quasi-control group (N=298) consisting of 893 students (45.9% girls) with an average age of 13.80 years (SD=1.47). The reduction of problems in the experimental group and the lack of change in the control group is evidence of the program’s validity, and show that by working and collaborating with the whole educational community it is possible to improve the quality of the virtual and, therefore, the real life of adolescents.
La vertiginosa incorporación de las TIC a la sociedad y los consecuentes riesgos a los que los menores se enfrentan en Internet y las redes sociales han dejado en evidencia la necesidad de incorporar en el currículum escolar el dominio de los entornos virtuales. En cambio, son escasas las iniciativas en esta dirección y más aún programas rigurosamente evaluados, de modo que sirvan de fundamento para el diseño de las líneas de acción educativa. El programa ConRed está basado en la teoría del comportamiento social normativo y persigue los objetivos de mejorar y reducir problemas como el cyberbullying, la dependencia a Internet y la desajustada percepción del control de la información en las redes sociales, para así potenciar el uso beneficioso de éstas. La evaluación del ConRed se ha desarrollado mediante una metodología cuasi experimental, con un grupo experimental (N=595) y uno cuasi-control (N=298). Del total de los 893 estudiantes, el 45,9% eran chicas y la edad media 13,80 años (DT=1,47). Los resultados positivos de reducción de problemas en el grupo experimental y la ausencia de cambio en el grupo control son muestra de su validez y demuestran que trabajando con toda la comunidad educativa y en colaboración con ella es posible mejorar la calidad de la vida virtual y, por tanto, real de los adolescentes.
Fame and Proffessional Success in «Operación Triunfo» and «Fama ¡a bailar!»
Authors: Oliva-Rota Mercè 
Published: July 2012

The main aim of this paper is to identify the values conveyed by «Operación Triunfo» and «Fama ¡a bailar!». Their popularity (especially among young people) and prescriptive nature (they convey life models by means of identifying problems and proposing objectives and solutions) make them relevant study objects. This paper focuses on how work and fame are depicted in «Operación Triunfo» and «Fama ¡a bailar!», two areas that have hardly been studied in Spain. In order to fulfil the objectives of this paper, these programmes were analysed using a methodology that combines narrative semiotics, audiovisual style and narrative form analysis, as well as ludology and game design theory. The analysis shows that these programmes depict professional success as personally and socioeconomically rewarding, although it is extremely difficult to achieve. To obtain this success, the contestants are transformed through education and celebritisation. Finally, in these programmes there is a conflict between talent and fame. This paper concludes that «Operación Triunfo» and «Fama ¡a bailar!» present fame as a life aspiration and also show the mechanisms used to produce it. The programmes depict modern society as meritocratic and evidence the importance of image in the modern workplace. Finally, they describe a «good worker» as someone passionate about their work, adaptable and capable of sacrificing his/her personal life.El presente artículo tiene como objetivo analizar los valores vehiculados por «Operación Triunfo» y «Fama ¡a bailar!». Su relevancia como objeto de estudio reside en su popularidad (especialmente entre los jóvenes) y su carácter prescriptivo (transmiten modelos de vida a partir de la identificación de problemas y la propuesta de objetivos y soluciones). Este artículo explora cómo representan el ámbito profesional y el concepto de la fama «Operación Triunfo» y «Fama ¡a bailar!», dos temas poco analizados hasta ahora en España. Para ello, se propone una metodología que combina la semiótica narrativa, el análisis de la enunciación audiovisual y el estudio de las reglas del concurso. El análisis revela que en estos programas se representan el éxito profesional como gratificante a nivel personal y socioeconómico, aunque también muy difícil de conseguir. Para alcanzarlo, los concursantes son transformados mediante el aprendizaje y la «celebritización». Finalmente, hay en estos programas una fuerte tensión entre el talento y la popularidad como formas de llegar al éxito. El artículo concluye que «Operación Triunfo» y «Fama ¡a bailar!» son programas que prescriben la fama como aspiración vital y reflexionan sobre su proceso de producción; transmiten una visión meritocrática de la sociedad actual; ponen en escena la importancia de la imagen en el entorno laboral y definen un buen profesional como alguien apasionado, maleable y capaz de sacrificar su vida personal.
Une analyse critique des mesures de restriction aux échanges de services
Authors: Rabaud Isabelle , Montalieu Thierry 
Published: July 2012

Résumé Les négociateurs commerciaux de l’ omc ont identifié quatre modes d’échange de services : l’échange transfrontière, la consommation à l’étranger, la présence commerciale et la présence de personnes physiques. Les entraves aux échanges de services s’étendent donc aux réglementations domestiques. Nous examinons la manière dont les équations de gravité expliquent les déterminants des échanges de services et comment elles permettent l’évaluation des gains liés à la suppression de ces entraves. Au préalable, nous exposons comment les barrières aux échanges de services sont surestimées. Nous montrons ensuite que si les équations de gravité expliquent bien les opérations internationales de services, les méthodes utilisées tendent à surévaluer les effets des entraves aux échanges et donc la croissance des flux d’exportations et d’ ide de services attendue de la libéralisation.
Minimally Invasive Basilic Vein Harvest for Arteriovenous Fistula Transposition using a Laryngoscope
Authors: Jennings William C. , Blebea John , Arcos V. Karlos , Maliska Miles , Fadner Brandon , Nguyen Albert 
Published: July 2012

Purpose The standard lengthy surgical incision used for basilic vein arteriovenous fistula (AVF) transposition is associated with significant discomfort, scarring and risk of wound complications. Minimally invasive vein dissection using a laryngoscope is an inexpensive alternative which has been successfully used for saphenous vein harvesting and which we have applied to the basilic vein for laryngoscopic-assisted AVF transposition (L-AVF/T). Methods During this technique, the basilic vein is mobilized through two small incisions, one in the axilla and the second just proximal to the cubital fossa. Ultrasound examination is used to map the location of the largest distal venous branch, either the forearm basilic vein or the median cubital vein. An important element of exposure is incising the superficial investing fascia longitudinally over the vein, allowing the working space to expand. Results L-AVF/Ts were constructed in 47 patients during a 20 month time period. Mean age was 62 (18–87) years. Twenty-five (53%) patients were women, sixteen (34%) were obese and twenty-eight (60%) were diabetic. All veins were successfully harvested and there were no neurologic injuries. Primary and cumulative patency rates were 80% and 92%, respectively, at one year with follow-up ranging between 1–20 months (mean = 4 months). Conclusions Minimally invasive dissection of the basilic vein for vascular access transposition using laryngoscopic assistance is safe, reliable and cost efficient with good short-term patency and functional outcomes.
Réflexions iconoscopiques sur la pensée économique au Québec français
Authors: Paquet Gilles 
Published: July 2012

Ce texte présente l’évolution de la tribu des économistes québécois de langue française depuis 75 ans comme une histoire faite de trois grandes discontinuités : (1) le passage de l’économie politique à la coexistence pacifique entre trois curies (HEC, Laval et Montréal) dans l’après Seconde Guerre mondiale; (2) la consolidation des trois curies en deux phratries en coexistence hostile (SCSE et ASDEQ) dans les années soixante-dix et (3) l’éclatement des phratries en clans définis par lesissuesdans les années récentes. On montre que la réunification de la tribu est possible, mais que les progrès risquent d’être lents.
Robust H ∞  filtering for a class of uncertain stochastic hybrid neutral systems with time‐varying delay
Authors: Lian Jie , Feng Zhi , Shi Peng 
Published: July 2012

SUMMARYThis paper is devoted to the problem of robust H ∞  filtering for a class of uncertain switched neutral systems subject to stochastic disturbance and time‐varying delay. Attention is focused on the design of a full‐order switched filter such that the filtering error system is robust mean‐square exponentially stable with a prescribed weighted H ∞  performance. On the basis of the average dwell time approach and the piecewise Lyapunov function technique, sufficient conditions for the solvability of this problem are obtained in terms of linear matrix inequalities. Then, by solving the corresponding linear matrix inequalities, the desired full‐order switched filter is derived for all admissible uncertainties, time‐varying delay, and stochastic disturbances. A numerical example is given to illustrate the effectiveness of the proposed method. Copyright © 2012 John Wiley & Sons, Ltd.
Clinical features, early treatment responses, and outcomes of pediatric acute lymphoblastic leukemia in china with or without specific fusion transcripts: A single institutional study of 1,004 patients
Authors: Gao Chao , Zhao Xiao‐Xi , Li Wei‐Jing , Cui Lei , Zhao Wei , Liu Shu‐Guang , Yue Zhi‐Xia , Jiao Ying , Wu Min‐Yuan , Li Zhi‐Gang 
Published: July 2012

AbstractAcute lymphoblastic leukemia (ALL) with distinct fusion transcripts has unique clinical features. In this study, the incidence, clinical characteristics, early treatment response, and outcomes of 1,004 Chinese pediatric ALLs were analyzed. Patients with TEL‐AML1 and E2A‐PBX1 fusion genes or other B cell precursor ALLs (BCP‐ALL) had favorable clinical features, were sensitive to prednisone, had low minimal residual disease (MRD), and an excellent prognosis, with a 5‐year event‐free survival (EFS) of 84–92%. T‐ALL was associated with a high WBC, increased age, more central nervous system involvement, a poor prednisone response, and high MRD, with a 5‐year EFS of 68.4 ± 5.2%. Patients with BCR‐ABL and MLL rearrangements usually had adverse clinical presentations and treatment responses, and a dismal prognosis, with 5‐year EFS of 27.3 and 57.4%, respectively. We also showed that BCR‐ABL and MLL rearrangements, the prednisone response, and MRD were independent prognostic factors. Interestingly, the BCH‐2003 protocol resulted in a better outcome for E2A‐PBX1+ patients than the CCLG‐2008 protocol. Intermediate and late relapses were more common in TEL‐AML1+ patients and other BCP‐ALLs compared with other subgroups (P = 0.018). Therefore, this study suggests that a fusion gene‐specific chemotherapy regimen and/or targeted therapy should be developed to improve further the cure rate of pediatric ALL. Am. J. Hematol. 2012. © 2012 Wiley Periodicals, Inc.
The transition to a bio‐economy: emerging from the oil age
Authors: Kircher Manfred 
Published: July 2012

AbstractIn the second of a two‐part feature, Manfred Kircher, Chairman of the Advisory Board of Cluster
Industrielle Biotechnologie e.VCLIB2021, provides a perspective on how the bio‐economy might unfold to replace fossil‐fuel‐based products on a global scale and considers how the increasing demand for biofeedstock could be met. © 2012 Society of Chemical Industry and John Wiley & Sons, Ltd
Acidic metabolite profiling analysis of catecholamine and serotonin as O‐ethoxycarbonyl/tert‐butyldimethylsilyl derivatives by gas chromatography–mass spectrometry
Authors: Nguyen Duc‐Toan , Cho In‐Seon , Kim Jeong‐Whun , Kim Kyoung‐Rae , Lee Gwang , Paik Man‐Jeong 
Published: July 2012

ABSTRACTA novel derivatization method was developed for the simultaneous determination of six acidic metabolites of catecholamine and serotonin by gas chromatography–mass spectrometry (GC‐MS). The metabolites were converted to O‐ethoxycarbonyl/tert‐butyldimethylsilyl (EOC/TBDMS) derivatives for the direct GC‐MS analysis in selected ion monitoring mode. Their mass spectral pattern as EOC/TBDMS derivatives showed characteristic fragment ions of [M – 15]+ and [M – 57]+, which permitted rapid and accurate structural confirmation of acidic metabolites. The present method was linear (r ≥ 0.998), reproducible (percentage relative standard deviation = 1.0–10.0) and accurate (% relative error = −9.7–9.8) with detection limits of 0.001–4.7 ng/mL. When applied to human urine samples, the method allowed simultaneous determination of six acidic metabolites of catecholamine and serotonin. Copyright © 2012 John Wiley & Sons, Ltd.
In Situ Radio‐Frequency Heating for Soil Remediation at a Former Service Station: Case Study and General Aspects
Authors: Huon G. , Simpson T. , Holzer F. , Maini G. , Will F. , Kopinke F.‐D. , Roland U. 
Published: July 2012

AbstractIn situ radio‐frequency heating (ISRFH) was successfully applied during remediation of a former petrol station. Using a three‐electrode array in combination with extraction wells for soil vapor extraction (SVE), pollution consisting mainly of benzene, toluene, ethylbenzene, xylenes, and mineral oil hydrocarbons (in total about 1100 kg) was eliminated from a chalk soil in the unsaturated zone. Specially designed rod electrodes allowed selective heating of a volume of approximately 480 m3, at a defined depth, to a mean temperature of about 50 °C. The heating drastically increased the extraction rates. After switching off ISRFH, SVE remained highly efficient for some weeks due to the heat‐retaining properties of the soil. Comparison of an optimized regime of ISRFH/SVE with conventional “cold” SVE showed a reduction of remediation time by about 80 % while keeping the total energy consumption almost constant.
Discrete Element Study of Aerogel Particle Dynamics in a Spouted Bed Apparatus
Authors: Antonyuk S. , Heinrich S. , Smirnova I. 
Published: July 2012

AbstractA novel process for fluidization and coating of light spherical aerogel particles in a spouted bed apparatus was numerically studied using discrete particle model. This model describes the interactions between the particles, particles and apparatus walls, as well as between the particles and gas which take place on the microlevel and can be used in the multiscale modeling approach to study the entire production process. The experimentally obtained mechanical properties of aerogel particles, like stiffness, modulus of elasticity, coefficients of friction and restitution were used as material parameters in the performed simulations. The influence of the increasing density and decreasing restitution coefficient of the particles due to the growth of the coating layer on the fluidized bed dynamics regarding the impact forces, collision rates, velocity distributions and rotation of particles was analyzed.
Titanium‐Catalyzed Vinylic and Allylic CF Bond Activation—Scope, Limitations and Mechanistic Insight
Authors: Kuehnel Moritz F. , Holstein Philipp , Kliche Meike , Krüger Juliane , Matthies Stefan , Nitsch Dominik , Schutt Joseph , Sparenberg Michael , Lentz Dieter 
Published: July 2012

AbstractThe hydrodefluorination (HDF) of fluoroalkenes in the presence of a variety of titanium catalysts was studied with respect to scope, selectivity, and mechanism. Optimization revealed that the catalyst requires low steric bulk and high electron density; secondary silanes serve as the preferred hydride source. A broad range of substrates yield partially fluorinated alkenes, such as previously unknown (Z)‐1,2‐(difluorovinyl)ferrocene. Mechanistic studies indicate a titanium(III) hydride as the active species, which forms a titanium(III) fluoride by H/F exchange with the substrate. The HDF step can follow both an insertion/elimination and a σ‐bond metathesis mechanism; the E/Z selectivity is controlled by the substrate. The catalysts’ ineffieciency towards fluoroallenes was rationalized by studying their reactivity towards Group 6 hydride complexes.
Vanadium pentoxide nanobelts: One pot synthesis and its lithium storage behavior
Authors: Nagaraju Ganganagappa , Chithaiahb Pallellappa , Ashokac Siddaramanna , Mahadevaiah Narayanappa 
Published: July 2012

AbstractIn this paper, we report a synthesis, characterization and electrochemical properties of V2O5 nanobelts. V2O5 nanobelts have been prepared via hydrothermal treatment of commercial V2O5 in acidic (HCl/H2SO4) medium at relatively low temperature (160 °C). The hydrothermally derived products have been characterized by powder X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FT‐IR), Raman spectroscopy, X‐ray photo electron spectroscopy (XPS), UV‐Vis spectroscopy, Scanning/Transmission electron microscopy (SEM/TEM). XRD pattern of V2O5 nanobelts show an orthorhombic phase. From the FTIR spectrum, the peak observed at 1018 cm−1 is characteristic of the stretching vibration mode of the terminal vanadyl, V = O. The UV‐Vis absorption spectrum of V2O5 nanobelts show maximum absorbance at 430 nm, which was blue‐shifted compared to that of bulk V2O5. TEM micrographs reveal that the products consist of nanobelts of 40‐200 nm in thickness and several tens of micrometers in length. The electrochemical analysis shows an initial discharge capacity of 360 mAh g−1 and its almost stabilized capacity is reached to 250 mAh g−1 after 55 cycles. A probable reaction mechanism for the formation of orthorhombic V2O5 nanobelts is proposed.
Synthesis and tribological properties of Mo‐doped WSe2 Nanolamellars
Authors: Li Wenjing , Hu Lifei , Wang Minzhi , Tang Hua , Li Changsheng , Liang Jiaqing , Jin Yue , Li Dongsheng 
Published: July 2012

AbstractThe Mo‐doped WSe2 nanolamellars have been successfully prepared via solid‐state thermal (750 °C) reaction between micro‐sized W, Mo with Se powders under inert atmosphere in a closed reactor and characterized by X‐ray diffractometer (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found that the morphologies of the as‐prepared products changed from microplates to nanolamellars to aggregations composed of nanoparticles with the doping of Mo powders. And the sizes of crystallites evidently reduced while the contents of dopant increased within a certain limit (1 wt.%–7 wt.%). The tribological properties of the as‐prepared products as additives in HVI750 base oil were investigated by UMT‐2 multispecimen tribotester. The friction coefficient of the base oil containing Mo‐doped WSe2 nanolamellars was lower and more stable than that of WSe2 nanolamellars. A combination of rolling friction, sliding friction, and stable tribofilm on the rubbing surface could further explain the good friction and wear properties of Mo‐WSe2 nanoparticles as additives than that of WSe2.
Rab11 regulates planar polarity and migratory behavior of multiciliated cells in Xenopus embryonic epidermis
Authors: Kim Kyeongmi , Lake Blue B. , Haremaki Tomomi , Weinstein Daniel C. , Sokol Sergei Y. 
Published: July 2012

AbstractBackground: Xenopus embryonic skin is composed of the superficial layer with defined apicobasal polarity and the inner layer lacking the apical domain. Multiciliated cells (MCCs) originate in the inner layer of the epidermal ectoderm and subsequently migrate to the surface. How MCCs acquire the apicobasal polarity and intercalate into the superficial layer during neurulation is largely unknown. As Rab11‐dependent vesicle trafficking has been implicated in ciliary membrane assembly and in apical domain formation in epithelial cells, we assessed the involvement of Rab11 in MCC development. Results: Here we report that Rab11 is specifically enriched and becomes apically polarized in skin MCCs. Interference with Rab11 function by overexpression of a dominant negative mutant or injection of a specific morpholino oligonucleotide inhibited MCC intercalation into the superficial layer. Dominant negative Rab11‐expressing MCC precursors revealed intrinsic apicobasal polarity, characterized by the apical domain, which is not normally observed in inner layer cells. Despite the presence of the apical domain, the cells with inhibited Rab11 function were randomly oriented relative to the plane of the tissue, thereby demonstrating a defect in planar polarity. Conclusions: These results establish a requirement for Rab11 in MCC development and support a two‐step model, in which the initial polarization of MCC precursors is critical for their integration into the superficial cell layer. Developmental Dynamics 241:1385–1395, 2012. © 2012 Wiley Periodicals, Inc.
Social influence: A discussion and integration of recent models into a general group situation theory
Authors: Witte Erich H. 
Published: July 2012

AbstractThree models of social influence are presented and their principles discussed in depth: social impact theory, the social influence model and group situation theory. A detailed model of social impact is developed and combined with the group situation theory. The integration of these concepts is utilized to reanalyse several classical studies in social facilitation, social inhibition, crowding, social loafing, and helping in an emergency. Finally, in order to emphasize their differences, the three models are used to explain the Asch studies. The combination of a detailed version of social impact theory with group situation theory results in a middle range theory of group behaviour.
Pessimism and behavioural signs of depression in East versus West Berlin
Authors: Oettingen Gabriele , Seligman Martin E. P. 
Published: July 2012

AbstractQuantified behavioural signs of depression in relation to pessimism across cultures. First, by observing workmen in 1985 East and West Berlin bars, we found more behaviour consistent with depression in East Berliners than in West Berliners. We then measured pessimism in both cultures by assessing explanatory style in newspaper reports of the 1984 Winter Olympic Games. Despite having more Olympic victories to report, East Berlin newspaper accounts were more pessimistic than West Berlin reports. We suggest that, with proper controls, convergent measurements of explanatory style and behavioural signs consistent with depression allow to quantify pessimism and depression across culture and time.