Synchronizing Web Documents with Style

In this paper we report on our efforts to define a set of document extensions to Cascading Style Sheets (CSS) that allow for structured timing and synchronization of elements within a Web page. Our work considers the scenario in which the temporal structure can be decoupled from the content of the Web page in a similar way that CSS does with the layout, colors and fonts. Based on the SMIL (Synchronized Multimedia Integration Language) temporal model we propose CSS document extensions and discuss the design and implementation of a proof of concept that realizes our contributions. As HTML5 seems to move away from technologies like Flash and XML (eXtensible Markup Language), we believe our approach provides a flexible declarative solution to specify rich media experiences that is more aligned with current Web practices

Video Analysis Tools for Annotating User-Generated Content from Social Events

In this presentation we present how low-level metadata extraction tools have been applied in the context of a pan-European project called Together Anywhere, Together Anytime (TA2). The TA2 project studies new forms of computer-mediated social communications between spatially and temporally distant people. In particular, we concentrate on automatic video analysis tools in an asynchronous community-based video sharing environment called MyVideos, in which users can experience and share personalized music concert videos within their social grou

Osmium isotopes fingerprint mantle controls on the genesis of an epithermal gold province

The formation of crustal blocks enriched with gold (Au) deposits above subduction zones is intimately bound to the genesis and evolution of magmatic-hydrothermal systems. A longstanding question, however, is whether the metal fertility of these systems stems from distinct sources that are anomalously enriched in Au or from subsequent processes occurring during crustal magma emplacement and hydrothermal activity. The Deseado Massif auriferous province in southern Patagonia (Argentina) is a unique place to test these contrasting hypotheses because Au-bearing mantle xenoliths indicate the presence of an underlying Au-rich lithospheric mantle reservoir. However, direct geochemical links between the Au-rich mantle source and the formation of the Deseado Massif auriferous province in the overlying crust remain to be established. To address this prominent gap in knowledge, we used sulfide Re-Os geochronology to identify the source of Au at Cerro Vanguardia, the largest low-sulfidation epithermal Au-Ag deposit in the Deseado Massif. Pyrite from high-grade Au quartz veins yielded an isochron age of 147.4 ± 2.9 Ma (mean square of weighted deviates = 1.04, n = 8) and an initial 187Os/188Os ratio of 0.26 ± 0.01, fingerprinting a dominant mantle control for the source of Os and, by inference, the source of Au. Our data provide a unique geochemical linkage between an Au-rich subcontinental lithospheric mantle source and the genesis of epithermal Au deposits, supporting the hypothesis that pre-enriched mantle domains may be a critical factor underpinning the global-scale localization of Au provinces.Fil: Tassara, Santiago. University of Yale; Estados UnidosFil: Rooney, Alan D.. University of Yale; Estados UnidosFil: Ague, Jay. J.. University of Yale; Estados UnidosFil: Guido, Diego Martin. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Recursos Minerales. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto de Recursos Minerales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Reich, Martin. Universidad de Chile; ChileFil: Barra, Fernando. Universidad de Chile; ChileFil: Navarrete Granzotto, César Rodrigo. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Análisis de la calidad del servicio de las operadoras de telefonía móvil en la ciudad de Ambato

La tecnología móvil de cuarta generación denominada 4G ha sido el estándar de telecomunicaciones en el 2019 para la mayoría de las operadoras de telefonía móvil del Ecuador, debido a que ha permitido procesar mayor información y servicios de datos que 3.5G, proporcionado definitivamente un aumento considerable de velocidad de conexión, en consecuencia una de las características de relevancia 4G es sin duda , la posibilidad de transmitir videos de alta resolución en vivo mediante aplicaciones instaladas en teléfonos inteligentes e incluso marcando el camino futuro hacia el internet de las cosas. El objetivo principal de este trabajo fue determinar los factores que influyeron en la calidad del servicio que suministran cada una de las operadoras de telefonía móvil, para ello se seleccionó una muestra de clientes de servicios de telefonía móvil, que para el efecto fueron estudiantes de una prestigiosa institución  de educación superior de nivel tecnológico de Ambato, para ello se aplicó encuestas basadas en el modelo SERVQUAL, con lo que se analizó la calidad del servicio en función de aspectos técnicos como:  la cobertura, el servicio de datos, el servicio de voz, el soporte técnico, y la velocidad máxima y mínima, y con esta información se estableció por ejemplo, que la mayoría de los clientes  usualmente activa paquetes de datos , pero aproximadamente el  32% de ellos se encuentran satisfechos con el servicio contratado, y esto debería causar preocupación en las autoridades de regulación y control de las telecomunicaciones, puesto que no se está garantizando que las prestaciones que ofertan las operadoras sean concordantes  y eficientes

Second hand tobacco smoke adversely affects the bone of immature rats

OBJECTIVES: To evaluate the influence of secondhand cigarette smoke exposure on longitudinal growth of the tibia of growing rats and some parameters of bone quality. METHODS: Forty female rats were randomly divided into four groups: control: rats were sham exposed; 30 days: rats were exposed to tobacco smoke for 30 days; 45 days: rats were exposed to tobacco smoke for 45 days; and 60 days: rats were exposed to tobacco smoke for 60 days. Blood samples were collected to evaluate the levels of cotinine and alkaline phosphatase. Both tibias were dissected and weighed; the lengths were measured, and the bones were then stored in a freezer for analysis of bone mineral content and mechanical resistance (maximal load and stiffness). RESULTS: Exposure of rats to tobacco smoke significantly compromised bone health, suggesting that the harmful effects may be time dependent. Harmful effects on bone growth were detected and were more pronounced at 60-day follow-ups with a 41.8% reduction in alkaline phosphatase levels (

Anômala contribuição bilateral do extensor longo do polegar e fusão dos músculos do primeiro compartimento dorsal do punho

Knowledge of the anatomical variations of the muscles of the first dorsal compartments of the wrist is clinically relevant to De Quervain's tenosynovitis and to reconstructive surgeries. In the literature, there are many reports of the presence of multiple insertion tendons in the first dorsal compartment of the wrist, but few reports describe occurrences of fusion and muscle contributions. This case report describes an anomalous bilateral contribution of the extensor pollicis longus. This anomalous contribution was found through a slender auxiliary tendon that crossed laterally under the extensor retinaculum, entered the first dorsal compartment of the wrist and merged with the tendon of the extensor pollicis brevis muscle. In the same cadaver in which this contribution was present, there was atypical muscle fusion of the abductor pollicis longus muscle and extensor pollicis brevis muscle. In conclusion, anomalous bilateral contribution of the extensor pollicis longus muscle and atypical muscle fusion, concomitant with a variant insertion pattern, are the highlight of this case report. Furthermore, it is concluded that additional tendons may be effectively used in reconstructive surgeries, but that there is a need for knowledge of the possible numerical and positional variations of these tendons, with a view to making more effective surgical plans.O conhecimento das variações anatômicas dos músculos do primeiro compartimento dorsal do punho é clinicamente relevante na tenossinovite de De Quervain e nas cirurgias reconstrutivas Na literatura encontram-se inúmeros relatos da presença de múltiplos tendões de inserção no primeiro compartimento dorsal do punho, mas são poucos os relatos que descrevem a ocorrência de fusão e de contribuições musculares. Este relato de caso descreve uma contribuição anômala bilateral do extensor longo do polegar. A anômala contribuição foi encontrada por um tendão auxiliar delgado que cruzou lateralmente sob o retináculo dos extensores, entrou no primeiro compartimento dorsal do punho e fundiu-se com o tendão do músculo extensor curto do polegar. No mesmo cadáver foi encontrada a presença dessa contribuição e uma fusão muscular atípica do músculo abdutor longo do polegar (APL) com o extensor curto do polegar (EPB). Em conclusão, a anômala contribuição bilateral do músculo extensor longo do polegar e a fusão muscular atípica, concomitante com um padrão de inserção variante, é o destaque deste relato de caso. Ainda, conclui que os tendões adicionais podem ser efetivamente usados nas cirurgias reconstrutivas e alerta sobre a necessidade de conhecimento das possíveis variações numéricas e posicionais desses tendões, com vistas a planejamentos cirúrgicos mais eficazes

Valor energético del aceite usado en sistemas de combustión térmicos de la industria cementera del país

Se estima que en Ecuador ingresan alrededor de 63 – 64 t /año de bases aceitosas utilizados en diversos sectores de la economía nacional, obteniéndose una recolección de aceite lubricante usado de 61 736 kg/ año, donde el 16% son tratados por gestores autorizados, lo que representa una inadecuada gestión tecnológica y ambiental. El objetivo de esta investigación es valorar las características del potencial energético de este desecho peligroso para su uso como combustible en hornos cementeros, para lo cual se analizó 12 mezclas combinadas entre el aceite usado y un combustible de origen fósil recolectado por la industria y fuentes automotrices de la ciudad de Riobamba; se determina la capacidad calorífica para combustibles, comparándose con lo exigido bajo normativa internacional. El análisis de mezclas fue tratado de forma estadística bajo el método de ANOVA y comparación DUNNET, las mismas que poseen un elevado poder calorífico, superior a 9300 kcal/kg, característica óptima al aprovechamiento energético para los sistemas térmicos de combustión del sector industrial cementero. Los resultados demuestran que los aceites lubricantes usados son aptos para la utilización de combustible, por su capacidad calorífica; convirtiéndose en alternativa para la solución al problema de disposición final de residuos peligrosos de la ciudad y protección del medio ambiente regulados bajo la ley de gestión ambiental del país

Avaliação da eficácia da artrocentese associada à viscossuplementação no tratamento das desordens temporomandibulares: relato de caso

Introduction: Arthrocentesis is a minimally invasive technique used for the treatment of temporomandibular disorders. Consists at the lavage of the upper articular space, increasing articular mobility and reducing pain. This technique can be associated with viscossuplementation, that can be defined as the injection of hyaluronic acid in the temporomandibular joint (TMJ), decreasing joint cartilage wear. Objective: To analysis the effectiveness of the arthrocentesis and viscossuplementation, highlighting its benefits, through a case report. Case Report: Pacient, E.O.M, female, 30 years, reported to Santa Casa de Misericórdia, Juiz de Fora, with main complain of pain and difficulty of mouth opening.  The DC/TMD Axis I questionnaire was conducted, and was verified hypomobility of the TMJ, with maximal mouth opening of 25 mm, clicking, crepitation and pain of the pre-auricular region. The diagnostic hypothesis was disc displacement with reduction confirmed by Magnetic Resonance Imaging (MRI). It was initial treatment with occlusal splint and farmacological therapy, but no improvement of the symptoms was noticed. Thus, arthrocentesis associated with viscossuplementation was indicated, in both joints. Results: it was observed improvement of the symptoms of the patient. The maximal mouth opening increased from 25mm to 36 mm, after 30 days of the procedure. The length of the follow-up was two years. There were no signs of relapses. Conclusion: The artrocenthesis associated with viscossuplementation is an effective method for treatment of temporomandibular disorders, mainly for refractory patients for conventional treatment being considered a safe technique.Introdução: A artrocentese é uma técnica minimamente invasiva utilizada para o tratamento de desordens temporomandibulares (DTM). Consiste na lavagem do espaço articular superior, aumentando a mobilidade articular e reduzindo a dor. Esta técnica pode ser associada à viscossuplementação, que consiste na injeção intra-articular de ácido hialurônico, diminuindo o desgaste da superfície articular. Objetivo: Analisar a eficácia da artrocentese associada à viscossuplementação, ressaltando os seus benefícios, através de um relato de caso. Relato de Caso: Paciente, E.O.M. gênero feminino, 30 anos, reportou-se à Santa Casa de Misericórdia de Juiz de Fora, com queixa de dor. Foi aplicado a metodologia DC/TMD (Diagnostic Criteria for Temporomandibular Disorders) Eixo I, sendo constatada hipomobilidade articular, com abertura bucal máxima de 25 mm, estalidos, crepitação e dor na região pré-auricular. A hipótese diagnóstica de deslocamento de disco com redução através de exame de Ressonância Magnética (RM). Iniciou-se o tratamento com placa neuromiorrelaxante em conjunto com a terapia farmacológica. O quadro sintomatológico da paciente não apresentou melhora, sendo indicada a artrocentese associada à viscossuplementação com hialuronato de sódio em ambas articulações. Resultados: Foi observada melhora do quadro sintomatológico da paciente. A abertura bucal evoluiu de 25mm para 36mm, após 30 dias do procedimento. Foi realizada a proservação por dois anos, não havendo sinais de recidiva. Conclusão: Pode-se concluir que a artrocentese associada à viscossuplementação é um método eficaz para o tratamento de desordens temporomandibulares, principalmente em pacientes refratários ao tratamento conservador, sendo considerada uma técnica segura

Efeito da amplitude de movimento no número máximo de repetições no exercício supino livre

There are divergent results about increases in strength using different ranges of motion (ROM). The aim of this study was to compare the maximum number of repetitions (MNR) in bench press with two different ROM. Fourteen subjects performed familiarization and one repetition maximum (1 RM) tests in sessions 1 and 2. MNR in four sets at 50% of 1 RM, one-minute rest with partial (ROMP) and complete ROM (ROMC) were performed in the third and fourth sessions. The ROMP used half of the bar vertical displacement compared to ROMC. Two-way ANOVA with repeated measures was used to compare the experimental conditions, followed by post hoc Scheffe. There was a significant decrease of the MNR among sets, except from third to fourth sets in both ROM. MNR in all sets was higher in ROMP than ROMC. The reduction of ROM allow to perform higher number of repetitions.Investigaciones cientificas muestran resultados divergentes en el aumento de la fuerza utilizando diferentes amplitudes de movimiento (ADM). El objetivo de este estudio fue comparar el número máximo de repeticiones (NMR) en un ejercicio de supino con dos ADM. Catorce voluntarios realizaron la familiarización y el test de una repetición máxima (1 RM) en las sesiones 1 y 2. En las sesiones 3 y 4 realizaron o NMR en cuatro series a 50% de 1 RM, un minuto de pausa con ADM parcial (ADMP) y completa (ADMC). ADMP utilizó la mitad del desplazamiento vertical de la barra realizado durante la ADMC. Fue aplicada ANOVA "two-way" con medidas repetidas, seguido del "Post hoc" Scheffé. Se encontró disminución significante del NMR a lo largo de las series, excepto de la tercera para la cuarta en ambas ADM, con el mismo patrón de reducción en ambas ADM. El NMR de la ADMP fue mayor que la ADMC. La reducción de ADM interfirió en el volumen de entrenamiento con mayor número de repeticiones realizadas para una misma intensidad relativa.Pesquisas mostram resultados divergentes no aumento da força utilizando diferentes amplitudes de movimento (ADM). O objetivo deste estudo foi comparar o número máximo de repetições (NMR) no exercício supino com duas ADM. Quatorze voluntários realizaram a familiarização e o teste de uma repetição máxima (1 RM) nas sessões 1 e 2. Nas sessões 3 e 4 realizaram o NMR em quatro séries a 50% de 1 RM, com um minuto de pausa, com ADM parcial (ADMP) e completa (ADMC). Na ADMP utilizou-se metade do deslocamento vertical da barra comparada a condição ADMC. Foi realizada ANOVA "two-way" com medidas repetidas, seguida pelo "Post hoc" Scheffé. Houve diminuição significante do NMR entre as séries, exceto da terceira para a quarta em ambas ADM. Um maior NMR foi verificado para ADMP. A redução da ADM permite a realização de um maior número de repetições para uma mesma intensidade relativa

INFECTION CONTROL IN DENTISTRY: HOW TO CLEAN PHOTOGRAPHIC MIRRORS?

http://dx.doi.org/10.5902/223658345221The aim of this study was to evaluate the efficacy of six different methods of disinfection and sterilization of intra-oral photographic mirrors through microbiological testing and to analysis their potential harm to mirrors’ surface. Fourteen occlusal mirrors were divided into seven groups. Group 1 comprised two mirrors as received from manufacturer. The other six groups comprised mirrors disinfected/sterilized by autoclave, immersion in enzymatic detergent, and friction with chlorhexidine detergent, chlorhexidine wipes, common detergent and 70% ethylic alcohol. Microbiological and quality surface analyses were performed. Sterilization in autoclave was microbiologic effective, but caused damage to the mirror surface. Chlorhexidine (in wipes or detergent) and liquid soap were effective disinfectant agents for photographic mirrors decontamination, without harmful effect on its surface. Enzymatic detergent immersion and friction with 70% ethylic alcohol were not effective as disinfectant agents for photographic mirrors decontamination. According to the results, the more effective and safe methods for photographic mirrors disinfection are friction with chlorhexidine and liquid soap