WorldWideScience

Sample records for cine como vector

  1. El cine como vector de expansión de la epidemia tabáquica The cinema as a vector of expansion of the smoking epidemic

    Directory of Open Access Journals (Sweden)

    Raquel Casitas

    2009-06-01

    Full Text Available El cine ha sido durante muchos años un fiel colaborador de la industria del tabaco, fomentando, mediante la presencia del cigarrillo en las películas, que niños y jóvenes se conviertan en adictos a la nicotina. El movimiento de prevención del tabaquismo en Estados Unidos ha documentado suficientemente estos hechos, y hoy existen demostraciones científicas suficientes acerca de la estrecha relación entre la presencia del tabaco en las películas y el inicio de su consumo por niños y jóvenes. Desde hace años se han creado grupos de trabajo que están presionando a la industria del cine y fomentando el debate social con anuncios en los principales medios de comunicación, para conseguir que Hollywood acepte su responsabilidad y cambie de actitud. Smoke Free Movies, una iniciativa liderada por la Universidad de California, está consiguiendo importantes avances para limitar la presencia de los cigarrillos en las películas americanas. En Europa en general, y en España en particular, este tipo de iniciativas son aún incipientes. El Movimiento de Prevención del Tabaquismo español debería aprovechar la experiencia americana para impulsar políticas similares. Algunas medidas de eficacia probada son la certificación, en los títulos de crédito, de no haber recibido pago alguno por mostrar tabaco en la película, la proyección de anuncios publicitarios antitabaco antes de las películas en que salgan cigarrillos, no permitir la identificación de marcas y no subvencionar películas que estimulen el consumo de tabaco.For many years the film industry has been a loyal contributor to the tobacco industry by showing actors smoking cigarettes onscreen and hence encouraging young people to become nicotine addicts. The Prevention of Nicotine Addiction movement in the United States has adequately documented this phenomenon and there is now sufficient scientific evidence to demonstrate the close relationship between smoking in films and the onset

  2. El cine como golosina. Reflexiones sobre el consumo de cine en los jóvenes

    Directory of Open Access Journals (Sweden)

    Jerónimo León Rivera-Betancur

    2008-01-01

    Full Text Available Este texto parte de los resultados de una investigación realizada en Medellín en 2005 a fi n de hacer una reflexión más amplia alrededor del tema del consumo de cine. El artículo cuestiona la estrecha relación entre oferta y demanda del cine en Colombia, y algunas características comunes a los espectadores que se acercan a las salas buscando estímulos audiovisuales. Factores como los hábitos de consumo, la alimentación y su relación con el cine, y las diferencias fundamentales entre lectura y consumo son algunos de los temas que se abordan en esta reflexión.

  3. Cine interactivo como estrategia de intervención grupal

    Directory of Open Access Journals (Sweden)

    Paola Lauretti

    2009-05-01

    Full Text Available Utilizando el concepto de cine interactivo como agente motor de la relación inter e intra personal, presentamosuna experiencia con un grupo de adultos, con la finalidad de establecer el valor del cine como un recurso útil para laintervención grupal. El método de trabajo descriptivo se desarrolló en varias etapas: 1 aplicación del CuestionarioExploración de Necesidades (CEN del cual se extrajeron los principales temas a tratar; 2 selección, por parte delequipo de investigación, de aquellas películas que mejor se adaptaban a las necesidades detectadas; 3 aplicación delCuestionario Actitud frente al Cine (CAC para sus analizar su actitud antes de iniciar la experiencia; 4 proyecciónde las películas seleccionadas; 5 re aplicación del CAC dos meses después de culminado el proceso, para analizar loscambios operados con relación al cine. Los temas trabajados fueron relación de pareja y relaciones padres-hijos bajola utilización del modelo CAPAS el cual promueve el análisis de las situaciones planteadas en los siguientes pasos: C:comentario general del contenido; A: análisis del problema central; P: proceso de internalización; A: auto reflexión y S:Solución del conflicto. Los resultados apuntan hacia la importancia de considerar el cine como una estrategia valiosaen la intervención en grupos.

  4. Carolee Schneemann. El cine como autobiografía, la artista como actriz, el cuerpo como pincel

    Directory of Open Access Journals (Sweden)

    María Barbaño González-Moreno

    2017-10-01

    Full Text Available Este trabajo analiza la relación de cine y mujer a partir de la obra fílmica de Carolee Schneemann, principalmente de su obra autobiográfica Fuses (1964-1966. Desde ella, se plantea el papel de la artista como productora, directora y protagonista principal de todas sus obras. Reflexionamos así sobre el rol del creador-director como actor que derivaría en la consecución de una obra cinematográfica de tintes necesariamente autobiográficos. Asumiendo la visión vanguardista del cine como diario personal/Entendido el cine como diario personal, Schneemann va a explorar en su obra diferentes aspectos de la identidad y la sexualidad de la mujer en un cine artístico, alternativo y de tendencia política feminista. Entendido/Asumido su cine como elemento plástico, la artista explorará de forma paralela la experimentación matérica y física a través de los cuerpos filmados así como de la propia materialidad de la película, excluyendo toda posibilidad narrativa, dramática e ilusoria de proyección del espectador en el espacio cinematográfico y el espacio privado del creador.

  5. EL CINE ESPAÑOL COMO FUENTE DOCUMENTAL PARA EL ESTUDIO DE LOS BARRIOS MARGINALES

    Directory of Open Access Journals (Sweden)

    Aramis López Juan

    2008-01-01

    Full Text Available El cine como arte nuevo y técnico se instala en una sociedad moderna que tiene una percepción del mundo basada en la imagen. El cine y la fotografía son los introductores de esta modalidad perceptiva de la modernidad. Esta experiencia sensorial sitúa al hombre en un universo más amplio. El hombre contemporáneo comprende los mecanismos representativos del cine, sus códigos, sus metáforas e iconos. El cine ha nacido al mismo tiempo que los abuelos de los espectadores actuales, ha crecido con sus padres, y es conocido y comprendido universalmente

  6. Niños violentados: el cine-debate como opción terapéutica

    OpenAIRE

    Teresa Fernández de Juan

    2006-01-01

    A partir de un recuento sobre las características e importancia del uso del cine- debate, se analiza su pertinencia en el trabajo con niños que padecen maltrato intrafamiliar a partir de una primera experiencia piloto realizada en un grupo de once menores, hijos de madres violentadas. A lo largo de ocho sesiones se abor-daron problemas tales como la autoestima y autocuidado, valores (respeto, responsabilidad, unión y solidaridad), integración familiar, control de impulsos, e...

  7. FILOSOFÍA COMO POLÍTICA, FABULACIÓN Y CINE. NIETZSCHE, BERGSON, NANCY Y DELEUZE

    Directory of Open Access Journals (Sweden)

    Óscar Barragán Martínez

    2012-01-01

    Full Text Available El texto propone una mirada de la filosofía como política a través de la estética. Para ello, recurre a nociones nietzscheanas como las de invención y valoración, con las cuales intenta socavar, con la filosofía deleuziana, la supremacía del concepto de pueblo. Desde el cine podemos apreciar mejor la propuesta de que el pueblo siempre falta, y es con un autor como Jean Marie Straub que la imagen cinematográfica será inmediatamente política en su deriva hacia nuevos derroteros en los que el pueblo está intervenido por actos de habla filosóficos.

  8. Filosofía como política, fabulación y cine. Nietzsche, Bergson, Nancy y Deleuze

    Directory of Open Access Journals (Sweden)

    Óscar Barragán Martínez

    2012-10-01

    Full Text Available El texto propone una mirada de la filosofía como política a través de la estética. Para ello, recurre a nociones nietzscheanas como las de invención y valoración, con las cuales intenta socavar, con la filosofía deleuziana, la supremacía del concepto de pueblo. Desde el cine podemos apreciar mejor la propuesta de que el pueblo siempre falta, y es con un autor como Jean Marie Straub que la imagen cinematográfica será inmediatamente política en su deriva hacia nuevos derroteros en los que el pueblo está intervenido por actos de habla filosóficos.

  9. El cine como espacio de enseñanza, producción e investigación

    Directory of Open Access Journals (Sweden)

    Yolanda Mercader Martínez

    2012-01-01

    Full Text Available Es necesario que el cine se incorpore como alternativa didáctica y herramienta de conocimiento en los sistemas educativos formales e informales, ya que este medio concede un nuevo sentido al proceso educativo. Apreciar al cine como herramienta de trabajo académico permite al profesor desarrollar su creatividad para transmitir y ampliar información, conocimientos, habilidades, valores y actitudes con posibilidad de hacer referencia a entornos concretos; todo ello exige la creación de cuerpos docentes, involucrados en desarrollar nuevos programas en los que los medios audiovisuales estén presentes en todo pensamiento pedagógico. Las formas de transmisión del conocimiento han encontrado nuevos caminos, por lo tanto es imprescindible experimentar en el proceso de enseñanza-aprendizaje. Esto implica la necesidad de aprender y a la vez enseñar opciones alternativas a las tradicionales en la dinámica de formación y a la vez explorar nuevas metodologías para la investigación y la presentación de las mismas. Fundamentalmente hay que reflexionar sobre algunos desafíos.

  10. El cine como instrumento didáctico en las aulas de ELE en un país de Bollywood

    Directory of Open Access Journals (Sweden)

    Singh,Vikash Kumar

    2010-10-01

    Full Text Available Este artículo estudia la importancia de la aplicación didáctica del cine en el contexto de enseñanza-aprendizaje indio de ELE, haciendo hincapié especial en la falta del uso de éste en las aulas indias. Se exponen las ventajas que aborda el uso del cine como herramienta didáctica y una breve descripción de los pasos metodológicos para la planificación y la secuenciación de las actividades didácticas. A continuación, se analiza el porqué del uso del cine como instrumento didáctico en las aulas indias de ELE en base a las necesidades de aprendizaje sentidas y las preferencias de aprendizaje de los alumnos de español de las universidades indias

  11. El cine como reivindicación de la memoria individual y colectiva. Directoras húngaras del periodo comunista

    Directory of Open Access Journals (Sweden)

    Cruzado Rodríguez, Ángeles

    2012-12-01

    Full Text Available This article takes a look at the most prominent women filmmakers of communist Hungary, emphasising both their common features and specificities, in order to highlight their contribution to Hungarian film history. In general, they are transgressive filmmakers, having broken the conventions established by the communist regime and tried to offer a new vision of history, based on their own experience.

    El artículo realiza un acercamiento a las directoras de cine más relevantes de la etapa comunista en Hungría, destacando sus características comunes así como las especificidades de cada una, en un intento por poner en valor su contribución a la historia del cine de su país. Por lo general, se trata de mujeres transgresoras, que han roto las convenciones establecidas por el régimen y han tratado de ofrecer una nueva visión de la historia, partiendo de su propia experiencia.

  12. El cine de Jordi Grau y la autobiografía como fabulación

    Directory of Open Access Journals (Sweden)

    Miren GABANTXO-URIAGEREKA

    2014-10-01

    Full Text Available El cine de los años ochenta en España corre paralelo a la situación de transformación social del país. Con la transición política en marcha, el cineasta Jordi Grau (Barcelona, 1930 se atreve en 1986 a rodar una película autobiográfica y a su vez representativa de la evolución de “los usos amorosos”, (Martín Gaite 1987 y del momento histórico de la ”nueva masculinidad, el antihéroe, el fin del macho ibérico y el principio del español sensible” (Guarinos 2008, que acopia ideas sobre los afectos y la sexualidad, ideas ya reiteradas en sus películas, pero en 1986, en una versión sin censura erótico-sexual. Afirmado o negado, en campo o fuera de campo, de una forma u otra, implícito o explícito, los afectos y la sexualidad siempre han estado y están inscritos en las películas de Grau.

  13. El cine de inmigración en España como herramienta educativa.

    OpenAIRE

    Ruesga Cabeza, María

    2016-01-01

    El Trabajo Fin de Grado que presento tiene como finalidad visualizar el fenómeno de la inmigración en nuestro país desde una mirada crítica para poder fomentar valores de igualdad, solidaridad, respeto y derechos fundamentales. Para ser conscientes de las duras condiciones de vida que sufren las personas extranjeras que llegan a nuestro país es necesario hacer un análisis sobre los flujos migratorios a lo largo de la historia de España desde la democracia, conocer las políticas sociales y las...

  14. El cine como recurso tecnológico en la creación de conocimiento: estudio de caso en la enseñanza de la orientación de la violencia familiar

    Directory of Open Access Journals (Sweden)

    María Campo-Redondo

    2006-09-01

    Full Text Available El presente artículo presenta una reflexión sobre la relación que existe entre el cine como instrumento tecnológicoal servicio de la educación y la creación de conocimiento en la formación de profesionales de la orientación dela violencia familiar. Se investiga las posibilidades de la inserción del cine como recurso tecnológico en la educaciónbajo dos enfoques: uno teórico, discutiendo la intersección entre ciencia, tecnología y educación, y otro empírico,describiendo un estudio de caso sobre la práctica educativa del cine-foro aplicado a la formación de profesionalesde la orientación de la violencia familiar, donde se presenta un diseño de trabajos prácticos realizado en un cursopara graduados de orientación familiar, en el que se utilizó la modalidad del cine-foro para generar conocimientossignificativos. Se propone construir un esquema de análisis de películas incorporando al cine como instrumento didáctico.Así mismo, se destaca que la utilización del cine en el salón de clase puede ayudar al docente a considerar latransversalización de los contenidos y a desarrollar competencias que van más allá de la adquisición de informacióndel campo específico de la orientación de la violencia familiar. Se concluye que el cine como instrumento tecnológicoy el recurso didáctico del cine-foro pueden servir para producir conocimiento en el área de la intervención psicosocialcon familias.

  15. Quantification of left ventricular volumes from cardiac cine MRI using active contour model combined with gradient vector flow

    International Nuclear Information System (INIS)

    Tanki, Nobuyoshi; Murase, Kenya; Kumashiro, Masayuki; Momoi, Risa; Yang, Xiaomei; Tabuchi, Takashi; Nagayama, Masako; Watanabe, Yuji

    2005-01-01

    We investigated the feasibility of combining the active contour model with gradient vector flow (Snakes-GVF) to estimate left ventricular (LV) volumes from cardiac cine magnetic resonance imaging (MRI). MRI data were acquired from 27 patients, including 14 adults (9 men, 5 women, 55.0±23.3 years) and 13 children (10 boys, 3 girls, 2.7±2.1 years) using Gyroscan Intera (1.5 Tesla, Philips Medical Systems). LV volumes were calculated by adding the areas surrounded by the contour extracted by Snakes-GVF and compared with volumes estimated by manual tracing. Those estimated by Snakes-GVF [y (mL)] correlated well with those estimated by manual tracing [x (mL)]. In adult cases, the regression equation and correlation coefficient were y=1.008x-0.517 and 0.996, respectively. In pediatric cases, they were y=1.174x-2.542 and 0.992, respectively. In conclusion, Snakes-GVF is a powerful and useful tool for quantifying LV volumes using cardiac MRI. (author)

  16. Las películas folclóricas como manifestaciones más características del cine musical en España

    Directory of Open Access Journals (Sweden)

    Inmaculada Sánchez

    2010-10-01

    Full Text Available El cine musical producido en España incluye manifestaciones de vanguardia, como las películas de Carlos Saura. Sin embargo, los ejemplos más importantes de este género son los que tienen una finalidad comercial. El cine folclórico de temática andaluza es la manifestación más específica del musical español. En este artículo se establece primero un panorama general de la evolución experimentada por el género cinematográfico musical en España. Luego se analizan los rasgos narrativos más sobresalientes del cine folclórico durante su época de esplendor, entre mediados de los años treinta y principios de los sesenta. Por último, se trata de Pena, penita, pena (Miguel Morayta, 1953, protagonizada por una de las grandes estrellas del musical folclórico, Lola Flores, porque se trata de una coproducción concebida también para el mercado latinoamericano.

  17. La técnica confesional como recurso narrativo. La transición y el cine "s" de Ignacio F. Iquino

    Directory of Open Access Journals (Sweden)

    Alejandro Melero Salvador

    2011-05-01

    Full Text Available Este artículo estudia las películas eróticas de la Transición y analiza cómo el cine fue al mismo tiempo una consecuencia de los nuevos discursos en torno a la sexualidad y un instrumento para la expresión de los mismos. El artículo propone que, tras la apariencia descuidada del cine “S” se esconden aparatos narrativos que entroncan con formas tradicionales en la creación de discursos del sexo.Después de repasar la importancia de la narrativa confesional en el cine de la época, se toma como caso de estudio la obra de Ignacio F. Iquino para explorar cómo los tradicionales recursos narrativos confesionales se aplicaron a estar primeras representaciones fílmicas del sexo y cómo, muy a menudo, estos discursos dependieron de un aparato ideológico heredado del pasado, como por ejemplo la visión de la homosexualidad como algo traumático.Puesto que se trata de un estudio de narrativas fílmicas, se recurre a los guiones originales de las películas que se estudian. Constituyen un testimonio de primera mano y son imprescindibles para explicar las cuestiones y problemas que rodean la construcción de los nuevos discursos sexuales de la época. La investigación en archivos es, por lo tanto, fundamental para este trabajo y, hasta la fecha, no existen estudios académicos sobre la mayoría de las películas que se estudian.

  18. Respuestas docentes sobre el cine como propuesta pedagógica. Análisis de la situación en Educación Secundaria

    Directory of Open Access Journals (Sweden)

    María del Carmen PEREIRA DOMÍNGUEZ

    2009-11-01

    Full Text Available RESUMEN: Esta investigación analiza los recursos audiovisuales y el uso que hace el profesorado del primer ciclo de Enseñanza Secundaria Obligatoria de los medios audiovisuales, en especial del cine, dentro de sus tareas educativas.En este sentido, se estudian las razones por las cuales se utiliza o no el cine en las aulas, así como la percepción de los docentes con respecto al tema y el uso, el dominio y la disposición ante el cine forum, como estrategia de intervención pedagógica.De las conclusiones principales extraídas del estudio, resaltamos la positiva predisposición del profesorado ante este tipo de medios, a pesar de las dificultades detectadas para su uso, así como la necesidad de establecer vías de formación permanente y de elaborar materiales adecuados que faciliten la inclusión de estos medios en los procesos de aprendizaje.ABSTRACT: This investigation analyses the audiovisual resources and the use that he/she makes the faculty of the first cycle of Obligatory Secondary Education of the aiidiovisual means, especially of the cinema, inside its edLicational tasks.In this way, the reasons are studied by which it is used or not the cinema in the classrooms, as well as the perception of the educational ones with regard to the topic and the use, the domain and the disposition before the cinema forum, as strategy of pedagogic intervention.Of the extracted main conclusions of the study, we stand out the faculty's positive bias before this type of means, in spite of the difficulties detected for their use, as well as the necessity to establish roads of permanent formation and of elaborating appropriate materials that facilítate the inclusión of these means in the learning processes.

  19. Avatar. La consolidación del juego de video y el fin del cine como factura

    Directory of Open Access Journals (Sweden)

    Manuel Gárate

    2010-02-01

    Full Text Available La experiencia de ver cine en un país distinto del propio y el mismo día del estreno de una película, puede llevar a ciertos engaños. La batería promocional y publicitaria genera expectativas enormes, especialmente cuando se trata de filmes con presupuestos millonarios y cuando cierta prensa ya habla de un antes y un después den la forma de hacer cine. Cuesta hacer una crítica de un producto que se parece poco a una película tradicional, y cuyo guión y secuencias hacen constantemente referen...

  20. El cine como recurso didáctico para la enseñanza del inglés como lengua extranjera: la adaptación fílmica desde una perspectiva de género

    OpenAIRE

    López Gallardo, Ana María

    2014-01-01

    Este trabajo doctoral comprueba cómo el cine es un recurso didáctico muy beneficioso en la enseñanza de una segunda lengua, ya que engloba no sólo elementos lingüísticos sino también socio-culturales, fundamentales en el aprendizaje de un idioma. A pesar de que nos hallamos inmersos en la era audiovisual, la transmisión del conocimiento a través de la imagen sigue estando aún infravalorada. Por esta razón el cine, por su condición de medio de expresión visual, siempre se ha considerado como u...

  1. La road movie como modelo transnacional y su presencia en el cine español: marco metodológico y principales aportaciones.

    Directory of Open Access Journals (Sweden)

    Santiago García Ochoa

    2016-01-01

    Full Text Available El presente artículo defiende que los estudios transnacionales constituyen el marco metodológico idóneo para el estudio de la espectacular difusión de la road movie, un género nacido en EE. UU. durante la década de los 60, al menos a través de tres vías: la contraposición entre lo nacional y lo transnacional, lo transnacional entendido como fenómeno regional y el protagonismo de las migraciones en los cines postcoloniales. Finalmente se aborda el desarrollo de la road movie en España y se repasan los principales trabajos académicos sobre el tema.

  2. Relevancia del mosquito tigre (Aedes Albopictus) como vector de enfermedades.

    OpenAIRE

    Blasco Rivera, Cristina

    2017-01-01

    El mosquito tigre (Ae. Albopictus) es uno de los vectores de las enfermedades causadas por arbovirus, siendo actualmente, la especie vectorial más invasiva del mundo. Se introdujo en Europa en 1979 localizándose en España por primera vez en agosto de 2004 en San Cugat del Vallés en Barcelona, desde donde no ha dejado de extenderse. Es vector del virus del dengue, virus del chikungunya, virus Zika y virus de la fiebre amarilla. El objetivo principal de este Trabajo de Fin de Grado será realiza...

  3. El cine como estrategia didáctica innovadora. Metodología de estudio de casos y perfil de estrategias docentes

    Directory of Open Access Journals (Sweden)

    Saturnino de la Torre de la Torre

    2013-05-01

    Full Text Available El presente estudio forma parte de una investigación más amplia basada en la integración de tres conceptos habitualmente estudiados por separado (Investigación, Formación, Innovación que busca la mejora de la calidad de la enseñanza a partir del estudio de las estrategias didácticas. Los modelos basados en la mera reflexión no se han mostrado eficaces para el cambio docente así como tampoco los que se han quedado en la mera práctica, descontextualizada del lugar de trabajo. Por ello, esta investigación intenta dar sentido conjunto a estos tres conceptos: generación de conocimiento, formación e innovación. Se define el concepto de estrategia didáctica, (Torre, 1997, 2000 en base a sus seis componentes: perspectiva teórica, finalidad o meta perseguida, carácter adaptativo, realidad contextual, personas implicadas, y aspectos organizativos, funcionalidad y eficacia. Se describe así mismo el modelo holodinámico de análisis en el contexto del aula (Torre, 2003 tomando en consideración ocho parámetros: supuestos implícitos del docente, contexto, rol docente, rol discente, recursos, organización espacio-temporal, clima o interacción, evaluación. Estos son los indicadores que se toman en cuenta en el estudio de casos que se describe utilizando como soporte informativo el cine comercial y como técnica de representación los perfiles. El cine formativo es una estrategia que el grupo GAD de la Universidad de Barcelona viene utilizando desde hace diez años tanto en forums anuales como en las aulas. Por otra parte, la técnica de representar en perfiles una compleja información cualitativa facilita la comprensión global de aquellos puntos fuertes y débiles en la mejora de la docencia.

  4. El cine como laboratorio en el aula: una revisión semiótica de la película La lengua de las mariposas

    Directory of Open Access Journals (Sweden)

    Otto Roberto Yela Fernández

    2007-09-01

    Full Text Available El estudio aborda el cine como recurso para la reconstrucción de pro- cesos históricos a partir de la hermenéutica audiovisual barthesiana, con la finalidad de ser utilizado en la educación universitaria de materias referentes al tema. Se ha queri- do delimitar de manera histórica y geográfica el área a trabajar, a una película, «La len- gua de las mariposas» (España, 1999, en el contexto de la Guerra Civil Española, por tratarse del hecho histórico más importante del siglo XX para este país. Se hizo una investigación fílmica cualitativa con base en los postulados teórico-metodológicos pro- puestos por Roland Barthes, que tienen que ver con la subdivisión del filme a partir de unidades significantes soporte-morfema (SM, para luego establecer los recorridos de significación por medio de la agrupación de estas unidades en Lexias significantes. Luego se analizó el espacio fílmico a partir de los 5 códigos de significación barthesia- nos: Hermenéutico, proairético, sémico, simbólico y cultural o referencial. Palabras clave: Cine, Guerra civil española, Semiótica, Educación, Motivación. 

  5. Vectores recombinantes basados en el virus Vaccinia modificado de Ankara (MVA) como vacunas contra la leishmaniasis

    OpenAIRE

    Pérez Jiménez, Eva; Larraga, Vicente; Esteban, Mariano

    2005-01-01

    Vectores recombinantes basados en el virus vaccinia modificado de Ankara (MVA) como vacunas contra la leishmaniasis. Los vectores de la invención contienen secuencias codificantes de la proteína LACK, preferentemente insertadas en el locus de hemaglutinina del virus y bajo el control de un promotor que permite su expresión a lo largo del ciclo de infección del virus. Son vectores seguros, estables, que dan lugar a una potente respuesta inmune que confiere protección frente a la leishmaniasis,...

  6. Cine e identidades virtuales

    Directory of Open Access Journals (Sweden)

    Labrador Ben, Julia María

    2006-12-01

    Full Text Available The subject is the ability the cinema has performed - since its very begining - as a creation instrument of national and transnational identities. In the first place, it covers Spanish cinema since 1938 and right after the end of the Spanish Civil War, II World War Italian-German cinema, Eisenstein’s, Leni Riefenstahl’s, Griffth’s and Ford’s cinema, the role American war and science fiction productions played, as well as the comedies dealing with the divided Berlin subject. The role of computers and video-games and the new cinema positionings that forecast the end of what is real, is studied through films such as Tron, The Lawnmower Man, Johnny Mnemonic, Ghost in the shell, Simone o Matrix.Se estudia la capacidad del cine desde sus orígenes como instrumento de generación de identidades nacionales y transnacionales. Se realiza, en primer lugar, un recorrido por el cine español desde 1938 y tras el final de la guerra civil, el cine italo-alemán de la II Guerra Mundial, el cine de Eisenstein, Leni Riefenstahl, Griffth y Ford, y el papel que jugaron las producciones norteamericanas bélicas y de ciencia ficción, así como las comedias sobre el Berlín dividido. El papel de los ordenadores y los videojuegos, y los nuevos planteamientos cinematográficos que pronostican el final de lo real se estudia a través de películas como Tron, El cortador de césped, Johnny Mnemonic, Ghost in the shell, Simone o Matrix.

  7. Cine y literatura

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Adoum

    2015-01-01

    Full Text Available El lanzamiento de la undécima edición de la novela de Jorge Enrique Adoum "Entre Marx y una mujer desnuda" y el comienzo simultáneo de la filmación de la película basada en esa obra, ha puesto nuevamente de relieve, el recurrente tema de la literatura llevada al cine. En ese sentido, en agosto, se llevó a cabo una mesa redonda en la que participaron como exponentes Camilo Luzuriaga (director del filme, Omar Ospina (crítico cinematográfico y jorge Enrique Adoum. En el siguiente artículo -basado en su exposición en la mesa redonda-, el reconocido escritor analiza cómo debe ser para él la vinculación entre literatura y cine.

  8. El cine como transgresión: deseo, política y feminismo en Camila (María Luisa Bemberg, 1984

    Directory of Open Access Journals (Sweden)

    Kratje, Julia

    2017-01-01

    Full Text Available [es] El objetivo general de este artículo es realizar un análisis de Camila (1984 de María Luisa Bemberg, obra clave para la historización de la relación entre cine y feminismo en la Argentina. El objetivo específico es investigar la construcción de la figura de mujer moderna como sujeto deseante en la transposición de los acontecimientos decimonónicos al film. La hipótesis que guía el trabajo es que el vínculo entre deseo y política aparece expresado bajo una forma cinematográfica convencional orientada por una revisión crítica del drama histórico. Con ese propósito, indagamos el film a partir del horizonte de emancipación abierto por el movimiento de mujeres y la cultura cinematográfica. Teniendo en cuenta las modificaciones operadas en la adaptación de los sucesos documentados, exploramos el repertorio figurativo desde el foco puesto en la relación de la protagonista con la moral católica y los lazos familiares, que perfilan a Camila O’Gorman como un personaje avant la lettre. [en] The general objective of this article is to analyze María Luisa Bemberg’s Camila (1984, a fundamental film about the relationship between cinema and feminism in Argentina. The specific objective is to investigate the construction of the figure of modern woman as a desiring subject in the adaptation of nineteenth-century history to the film, whose transposition refers to events of 1847, at the time of the government of Juan Manuel de Rosas (1835-1852. The hypothesis that guides the work is that the link between desire and politics is expressed in a feminist cinematographic form, oriented by a critical revision of the historical drama. With this purpose, I am interested in investigating the film from the horizon of emancipation opened by the women’s movement and the cinematographic culture connected with the “second wave”.

  9. Vacuna atenuada de Salmonella como vector de antígenos heterólogos

    Directory of Open Access Journals (Sweden)

    Oscar G. Gómez

    2000-06-01

    Full Text Available Salmonella enterica, serotipo Typhi, es el agente etiológico de la fiebre tifoidea de los habitantes de las regiones más pobres del mundo y es, además. el centro de atención de muchos investigadores dados sus fascinantes mecanismos de invasión, multiplicación intracelular y diseminación intercelular que expresa in vivo e in vitro. Aunque estos mecanismos se asocian directamente con la patogenicidad y la severidad de la enfermedad, las mutaciones definidas en el cromosoma de Salmonella han permitido que estos mecanismos de virulencia se puedan utilizar en beneficio del hospedero. Las mutantes atenuadas de Salmonella son capaces de invadir las células M de la mucosa intestinal y de migrar a las células linfoides del sistema reticuloendotelial donde, en lugar de causar enfermedad, activan eficazmente las respuestas inmunes humoral y celular no sólo contra el microorganismo mismo sino también contra aquellos antigenos heterólogos recombinantes que la bacteria pueda expresar y transportar. En la presente revisión, se discutirán los avances más recientes en el campo de las vacunas vivas atenuadas de Salmonella, su evaluación preclinica y clinica y, también, su aplicación como vector de antigenos. Se darán a conocer las técnicas biomoleculares de clonación y expresión procariótica de las toxinas diftérica, tetánica y de pertusis. así como de los antígenos de Helicobacterpylori y de Plasmodium falciparum. Finalmente, se propone el uso de Salmonella atenuada como vector de vacunas de ADN para expresión eucariótica de los antígenos recombinantes. Los continuos esfuerzos cientificos y tecnológicos en el campo de la vacunación con vectores vivos atenuados sugieren que Salmonella es una herramienta potencialmente útil para enfrentar el constante reto de la fiebre tifoidea. Igualmente, los estudios preclínicos y clínicos de fase I demuestran la eficacia de la vacuna de Salmonella viva atenuada como vector de antígenos heter

  10. CINE CLUB

    CERN Multimedia

    Ciné Club

    2009-01-01

    Main Auditorium CERN jeudi 17 décembre 2009 à 18 h 15 à l’Amphithéâtre principal du CERN (bâtiment 500)   Comme chaque année avant Noël, le CineClub du CERN est heureux d’inviter petits et grands à une projection gratuite du film   LE MONDE DE NEMO (FINDING NEMO) (USA, 2003, Andrew Stanton and Lee Unkrich)   Dans les eaux tropicales de la Grande Barrière de corail, un poisson-clown du nom de Marin mène une existence paisible avec son fils unique, Nemo. Redoutant l’océan et ses risques imprévisibles, il fait de son mieux pour protéger son fils. Comme tous les petits poissons de son âge, celui-ci rêve pourtant d’explorer les mystérieux récifs. Lorsque Nemo disparaît, Marin devient malgré lui le héros d’une qu&a...

  11. Cine club

    CERN Multimedia

    Ciné club

    2010-01-01

    Monday 13 December 2010 at 18:30 / Lundi 13 Décembre 2010 à 18:30 CERN Main Auditorium / Amphithéâtre Principal Comme chaque année avant Noël, le CINE-CLUB du CERN est heureux d’inviter petits et grands à une projection gratuite du film.   Ponyo sur la falaise (Japon, 2008, Hayao Miyazaki) Le petit Sosuke vit avec sa mère sur une haute falaise surplombant la mer. Un beau jour, il découvre sur la plage caillouteuse Ponyo, une petite fille poisson. Ponyo est si fascinée par Sosuke et le monde terrestre que son désir le plus cher est de devenir un être humain. Mais Fujimoto, son magicien de père, n’est pas du tout d’accord avec cette idée et il la force à regagner les profondeurs de l’océan. Bien décidée à revoir Sosuke, Ponyo s’&...

  12. Digital cine-imaging

    International Nuclear Information System (INIS)

    Masuda, Kazuhiro

    1992-01-01

    Digitization of fluoroscopic images has been developed for the digital cine imaging system as a result of the computer technology, television technology, and popularization of interventional radiology. Present digital cine imaging system is able to offer images similar to cine film because of the higher operatability and better image quality with the development of interventional radiology. As a result, its higher usefulness for catheter diagnosis examination except for interventional radiology was reported, and the possibility of having filmless cine is close to becoming a reality. However several problems have been pointed out, such as spatial resolution, time resolution, storage and exchangeability of data, disconsolidated viewing functions, etc. Anyhow, digital cine imaging system has some unresolved points and lots the needs to be discussed. The tendency of digitization is the passage of the time and we have to promote a study for more useful digital cine imaging system in team medical treatment which centers on the patients. (author)

  13. El cine como recurso para el conocimiento de las personas con discapacidad: Veinticinco películas de la última década

    Directory of Open Access Journals (Sweden)

    Mª Inés MONJAS CASARES

    2016-11-01

    Full Text Available Es indudable el poder del cine para transmitir informaciones, para provocar emociones y para estimular la empatía con los personajes y sus situaciones. Por ese motivo se propone la utilización de películas con protagonistas con discapacidad para favorecer la “visibilidad”, la normalización y el acercamiento a la realidad y a la situación de las personas con discapacidad. Para ello se han seleccionado veinticinco películas de la última década con protagonistas con discapacidad intelectual, física, motora, visual, auditiva y con trastornos del espectro autista. Los resultados más relevantes del análisis efectuado muestran que los problemas físicos, de autismo y de discapacidad intelectual son los más considerados, que los protagonistas con discapacidad son en gran medida jóvenes y adultos varones, que se presentan una gran variedad de temas (personales, interpersonales y afectivo-sexuales, familiares, médicos…, siendo los aspectos familiares los que tienen mayor relevancia y que se evidencia la presencia de actores con discapacidad. Asimismo es preciso constatar que la imagen de las personas con discapacidad en estas películas es mucho más ajustada a la realidad y más positiva que lo que habitualmente ocurría en la filmografía de décadas anteriores.

  14. O papel das Forças Armadas na I&D da Defesa como vector de desenvolvimento nacional

    OpenAIRE

    Simões, Luís

    2010-01-01

    A humanidade sempre se preocupou com o seu bem-estar, de alguma forma. Neste âmbito, o desenvolvimento económico tem vindo a desempenhar um papel fundamental. Após a revolução industrial, mas particularmente depois da II Guerra Mundial, os Estados têm-se preocupado com o respectivo desenvolvimento económico sustentável, entre outras questões, como garante de bem-estar das suas populações. A investigação e desenvolvimento (I&D), no seu conjunto, têm sido apontados como um possível vector de de...

  15. Las revistas técnicas como base documental para la recuperación de un patrimonio olvidado: el caso de las salas de cine españolas

    Directory of Open Access Journals (Sweden)

    Azorín, V.

    2009-09-01

    Full Text Available This paper assesses Spanish technical journals as sources of information to recover the nation’s cultural heritage. To this end, a case study was conducted of cinema theatres, buildings erected as distinctive structures essentially in the nineteen twenties through the nineteen sixties. The method used to evaluate these buildings consisted in a bibliographic and documentary review of periodicals, as well as other papers relating to the history of these buildings, to ultimately select three journals for study: Cortijos y Rascacielos, Arquitectura/Revista Nacional de Arquitectura and Informes de la Construcción, the three that devoted most space to that type of architecture in the five decades mentioned. A comparative study of these periodicals revealed the importance of their use in connection with the Cultural Heritage, observing the emphasis placed on the characteristics and peculiarities of the works involved from the standpoint of construction, even over other factors relating to the characteristics that define and differentiate these journals.Este trabajo consiste en una valoración de las revistas técnicas españolas como fuentes de información para la recuperación del Patrimonio Cultural. Para mostrarla, se han seleccionado como caso de estudio las salas de cine, que como construcciones singulares se desarrollaron especialmente entre los años 20 y 60 del siglo recién terminado. El método de trabajo para valorar estas obras ha consistido en realizar una revisión bibliográfica y documental de las revistas- así como de otros trabajos vinculados con la Historia de estos inmuebles-, para finalmente seleccionar tres de ellas; Cortijos y Rascacielos, Arquitectura/Revista Nacional de Arquitectura e Informes de la Construcción, puesto que a lo largo de las décadas citadas son las que dedican más páginas a este tipo de arquitectura. A través de un estudio comparativo de estas publicaciones periódicas, hemos podido comprobar la

  16. MUJER Y CINE EN AMÉRICA LATINA: PROYECTANDO UNA VISIÓN ALTERNATIVA DE LA NACIÓN

    Directory of Open Access Journals (Sweden)

    Rosa-Linda Fregoso

    2016-01-01

    Full Text Available Al explorar la relación entre cine de mujeres y cines latinoamericanos, este artículo interroga las categorías de cine nacional, cine latinoamericano y cine de mujeres con el fin de superar lógicas geopolíticas, de idiomas, colonialidad, y las lógicas industriales del mercado que han creado esas categorías. Partiendo de interrogantes como qué modelo de análisis feminista del cine es adecuado para articular las perspectivas de mujeres en las nuevas formaciones del cine mundial, propongo la utilidad del discurso de la interseccionalidad para un análisis de cine de mujeres que presente una visión alternativa de la nación.

  17. Música y Cine

    OpenAIRE

    Olarte Martínez, Matilde María

    2008-01-01

    Materiales de clase: Introducción a la Historia de la Música en el Cine; partituras de cine mudo; música clásica y cine; textos sobre música incidental. Se Analiza la música utilizada en cinematografía, y el estudio de sus funciones aplicada a la imagen. Audiciones de música incidental y música preexistente de los principales compositores. la música utilizada en cinematografía, y el estudio de sus funciones aplicada a la imagen. Audiciones de música incidental y música preexistente de los ...

  18. Cine y publicidad. Análisis de seis anuncios publicitarios realizados por directores de cine

    OpenAIRE

    Caballero Álvarez, Fernando

    2015-01-01

    Esta investigación tiene como objetivo de estudio analizar los trabajos llevados a cabo por diversos directores de cine de este país a marcas en un periodo de crisis en el que apuestan por trabajos de mayor calidad. Buscaremos aquellos elementos que diferencian a estos anuncios de cualquier otro no firmado por un director de cine y cuál podría ser el objetivo que buscan las marcas al apostar por ellos. Grado en Publicidad y Relaciones Públicas

  19. Tocar a través del cuadro: una genealogía del interfaz como metáfora de control en el espacio del arte, el cine y los videojuegos

    Directory of Open Access Journals (Sweden)

    Alfonso Cuadrado Alvarado

    2014-07-01

    Full Text Available ResumenEl objetivo del artículo es examinar las relaciones que el interfaz mantiene con el concepto de pantalla y cuadro en el arte, la realidad virtual,  el cine y los videojuegos.Para ello se establece una genealogía de la mediación a través de la pantalla desde el nacimiento de la perspectiva en el Renacimiento, como punto de inicio de la representación visual dominante, hasta el presente.El análisis muestra los cambios en la relación entre los tres elementos de la representación: el espectador, la pantalla y la escena, que se han producido por el surgimiento de las vanguardias artísticas y el arte interactivo como reacción al modelo de representación realista. Este recorrido lleva a concluir que el interfaz además de su papel mediador, se ha convertido en el paradigma de la comunicación actual, integrándose en el proceso de relevo que la representación realista ha dado al mito digital.AbstractThe aim of the paper is to examine the relationships maintained with the interface screen concept and box art, virtual reality, film and video games.To do a genealogy of mediation is established through the screen from the birth of perspective in the Renaissance, as the starting point of the dominant visual representation to present.The analysis shows the changes in the relationship between the three elements of the representation: the viewer, the screen and the scene, which were caused by the emergence of the avant-garde and interactive art in reaction to model realistic representation. This route leads to the conclusion that the interface in addition to its mediating role, has become the paradigm of modern communication, integrated into the process of relief that realistic digital representation has given myth.

  20. Educación médica: la adicción y el cine (Drogas y juego como búsqueda de la felicidad

    Directory of Open Access Journals (Sweden)

    Antonio Pais de Lacerda

    2008-10-01

    Full Text Available De origen socioeconómico diverso los estudiantes de Medicina tienen su propia comprensión cultural y sentimiento sobre la diversidad social, pero tienen que estar preparados para enfrentarse a la infinidad de comportamientos humanos sin prejuicios.             Nuestro objetivo fue analizar la utilización, con fines educativos, de escenas de películas comerciales (Trainspotting, Requiem por un Sueño, Leaving Las Vegas, Kids y Rounders en un curso extra-curricular de un día de duración sobre las “Adicciones”, destinado a alumnos de 4º y 5º curso de la Facultad de Medicina de Lisboa.             Después de discutidas las escenas, hubo una intensa participación de los participantes en las sesiones de enseñanza/aprendizaje, dando la oportunidad de aclarar nociones erróneas y conceptos preconcebidos, intentando “resolver” situaciones de ámbito médico.             La utilización de estas escenas fue considerada como motivadora y útil para promover y explorar una visión más amplia de los problemas sociales y médicos de los adictos. Estas películas son igualmente útiles para desencadenar cambios individuales en la comprensión de lo que “todos los usuarios de drogas o del juego sienten en su interior”.

  1. Atrápame si puedes: el cine como objeto de la escena pedagógica = Catch me if you can: cinema as an object in the pedagogical scene

    Directory of Open Access Journals (Sweden)

    Serra, María Silvia

    2012-01-01

    Full Text Available A lo largo del siglo XX, la pedagogía ha desplegado diferentes operaciones para incluir al cine dentro de su territorio. En el presente artículo se desarrollan tres modos de abordar al cine desde la pedagogía en vigencia actualmente, señalando las posibilidades y los límites que el pensamiento crítico tiene para realizar esta tarea. Los pedagogos debemos detenernos: no tanto en hablar de cine o escribir sobre él, intentando diseccionarlo, analizarlo o desmitificarlo, sino pensando cómo es posible incluirlo en nuestro territorio sin reducirlo a imperativos propios de otras lógicas u otros registros

  2. Entre la Historia y el Cine

    Directory of Open Access Journals (Sweden)

    Luisa Fernanda Acosta

    1995-01-01

    Full Text Available Este trabajo se propone aplicar al cine el concepto de «fuente histórica». El uso de medios de comunicación como el cine está íntimamente relacionado con las necesidades y posibilidades de una sociedad, lo que implica una relación muy cercana entre el desarrollo social y económico de una comunidad, y los mecanismos que ella genera como canales de expresión y comunicación. El cine, conjugación de imagen, sonido y movimiento se convierte para la sociedades contemporáneas en una gran alternativa como fuente histórica, que provee al investigador ópticas diferentes de una realidad ya explorada. Un gesto, una mirada, un plano, una secuencia, se traducen en frases y párrafos, que generan una versión diferente de la historia, una redacción que se lee en imágenes y que narra otro punto de vista, un relato oculto que tiene todo por contar.

  3. La amistad en el cine de Pixar: la noción aristotélica de amistad como clave de análisis cinematográfico

    OpenAIRE

    Figa Vaello, Jaume

    2017-01-01

    Las producciones de Pixar Animation Studios han marcado un antes y un después en el cine, no solo en el llamado “cine de animación”; su nuevo modo de contar historias y la solidez de sus guiones han hecho que muchos estudios de Hollywood se replanteen cómo realizar las películas. Este nuevo modo de contar historias se manifiesta, sobre todo, en que los personajes de las películas de la compañía del flexo tienen una caracterización muy humana y, por lo tanto, manifiestan en su a...

  4. Vectors

    DEFF Research Database (Denmark)

    Boeriis, Morten; van Leeuwen, Theo

    2017-01-01

    should be taken into account in discussing ‘reactions’, which Kress and van Leeuwen link only to eyeline vectors. Finally, the question can be raised as to whether actions are always realized by vectors. Drawing on a re-reading of Rudolf Arnheim’s account of vectors, these issues are outlined......This article revisits the concept of vectors, which, in Kress and van Leeuwen’s Reading Images (2006), plays a crucial role in distinguishing between ‘narrative’, action-oriented processes and ‘conceptual’, state-oriented processes. The use of this concept in image analysis has usually focused...

  5. Cine MRI of dissecting aneurysm

    International Nuclear Information System (INIS)

    Takaki, Hajime

    1991-01-01

    Cine MRI was performed in 25 cases of aortic dissection and comparative study among cine MRI, spin-echo static MRI, contrast-enhanced CT and intravenous digital subtraction angiography (IVDSA) was made. Cine MRI accurately detected aortic dissection. It was most accurate among various diagnostic methods in demonstration of entry site of dissection. Take-off of renal artery and its relation to true and false channels was also accurately demonstrated by cine MRI. The above results suggest that cine MRI can be an important diagnostic modality with almost equal diagnostic quality to those of conventional angiography. However, further technical improvement to shorten the imaging time seems necessary to replace angiography. (author)

  6. Cine magnetic resonance

    International Nuclear Information System (INIS)

    Higgins, C.B.; Sechtem, U.P.; Pflugfelder, P.

    1987-01-01

    Cine magnetic resonance (MR) is a fast MR imaging process with referencing of the imaging data to the electrocardiogram (ECG) so that images corresponding to 21-msec segments of the cardiac cycle are acquired. A series of such images, each corresponding to a 21-msec segment of the cardiac cycle, can be laced together for viewing in the cine format at a framing rate of 20 to 40 frames per second. Since cine angiograms of the heart are usually done at 30 frames per second, this technique achieves a temporal resolution adequate for the evluation of central cardiovascular function. The major application of this technique is to depict central cardiovascular function and blood flow

  7. Mosquitos Culicidae como vetores emergentes de infecções Culicidae mosquitoes as emerging vectors of diseases

    Directory of Open Access Journals (Sweden)

    Oswaldo Paulo Forattini

    1998-12-01

    Full Text Available Apresenta-se sucinta revisão do relacionamento entre as chamadas infecções emergentes e o conceito de vetores emergentes. Estes são entendidos não apenas no que concerne aos que são descritos como tais, de forma nova, mas também aqueles com acentuadas mudanças de comportamento. Os fatores específicos que propiciam esse fenômeno identificam-se à poderosa influência humana sobre o ambiente. Assim, aquele construído pelo homem e conhecido como antrópico representa a função de pressão seletiva que induz as populações vetoras a se adaptarem às novas circunstâncias. Nelas inclui-se fatores ecológicos ambientais, ou demográficos, que incrementam o contato com os novos comportamentos vetoriais. Relata-se o encontro de criadouros anômalos de mosquitos Culicidae nas Américas. A interpretação desses encontros é feita visando à vigilância epidemiológica. O significado dessa emergência ou reemergência pode se traduzir no aparecimento de problemas epidemiológicos. Sugere-se que, em sendo assim, a vigilância epidemiológica deva ser feita em grau global.A review is presented of the relationships between the so-called emerging infectious diseases and what may be defined as emerging vectors. These include not only those that have recently appeared but also those that present remarkable behavioral changes. Specific factors leading to that emergence can be associated with the powerful human influence on the environment. So the man-made, i.e. anthropic environment, exercises a selective pressure inducing vector populations to adapt to new circumstances. These may arise from ecological, environmental, or demographic factors that increase contact with the new vector. With this in mind, data on anomalous Culicidae breeding places in the Americas are reported. An interpretation of these findings is offered in the light of epidemiological surveillance. The question is whether vector emergence or re-emergence may constitute an

  8. Sida y toma de conciencia: un cine comprometido

    Directory of Open Access Journals (Sweden)

    Eugenio Núñez Ang

    2009-01-01

    Full Text Available Se aborda el tema de personajes gay, durante mucho tiempo eliminados de la historia del cine; tratados como raros, enfermos mentales, o bien para burlarse de ellos. Con la aparición del sida y las luchas del movimiento gay, la perspectiva cambia y el cine aborda problemas humanos, ajenos a una preferencia sexual estigmatizada. Se hace hincapié en el sida y la toma de conciencia, tanto para la población gay como para los otros.

  9. El cine posmoderno

    Directory of Open Access Journals (Sweden)

    Edel Cadena Vargas

    2015-05-01

    Full Text Available En el presente trabajo se trata de dar respuesta a las siguientes preguntas: ¿cuál es el origen del cine posmoderno?, ¿cuáles son los factores que permiten su creación?, ¿a qué sentimiento responde?

  10. ASESINATOS Y MUERTES DE CAMPESINOS EN LA ACTUALIDAD ARGENTINA: LA VIOLENCIA COMO VECTOR (DESTERRITORIALIZADOR

    Directory of Open Access Journals (Sweden)

    Diego Ignacio Dominguez

    2013-06-01

    Full Text Available El sistema agro-industrial-alimentario de Argentina, en el actual contexto de globalización económica, está signado desde algunas décadas ya, por el despliegue de un patrón de acumulación capitalista denominado como agronegocios. Se trata de un proceso, de transformación multidimensional y multiescalar, que presenta rupturas y continuidades con la expansión del anterior modelo de la agroindustria orientado al mercado interno a partir de regulaciones estatales. Según nuestras investigaciones desde la Comunidad de Estudios Campesinos (CEC pudimos identificar cinco dispositivos según los cuales el agronegocio se territorializa: económico-financiero, jurídico-normativo y de políticas públicas, legitimación ideológica, formación y desarrollo tecnológico, coercitivo (CEC, 2009. Nos interesa abonar a la caracterización del despliegue del último de los dispositivos del agronegocio: el de la violencia. En esta oportunidad presentamos un análisis del conjunto de los asesinatos o muertes de campesinos e indígenas en conflictos de tierra en Argentina, desde la desregulación económica hasta la actualidad. En este sentido nos proponemos indagar el significado de la violencia sobre los cuerpos de campesinos/as e indígenas que registramos desde 1991. Nuestra hipótesis se orienta a explicar la vinculación entre la violencia rural y la desterritorialización de la emergente intencionalidad campesina.

  11. A diversidade sexual no ensino de Psicologia. O cinema como ferramenta de intervenção e pesquisa: El cine como herramienta de intervención e investigación

    Directory of Open Access Journals (Sweden)

    Camila Backes dos Santos

    Full Text Available O contexto da formação em psicologia é tradicionalmente marcado pela patologização das performances de gênero e das sexualidades que fogem à matriz heteronormativa. A ausência da discussão sobre a diversidade sexual na formação em psicologia da Universidade Federal do Rio Grande do Sul motivou o projeto de pesquisa-intervenção aqui apresentado. O objetivo foi estimular o debate sobre a diversidade sexual utilizando o cinema como disparador de discussões em graduandos em psicologia, a fim de se compreenderem suas crenças e atitudes sobre a temática. As análises apontam para a resistência à discussão desta temática para além das abordagens tradicionais, as quais situam a diversidade sexual no campo da psicopatologia. No entanto, apesar da resistência, foi possível criar um espaço para a discussão que possibilitou ao corpo discente e docente refletir sobre o tema.

  12. Las personas mayores a través del cine

    Directory of Open Access Journals (Sweden)

    José Ramón Martínez Riera

    Full Text Available Resumen: El presente artículo hace un recorrido por las diferentes etapas del envejecimiento y de la vida de las personas mayores a través del cine. El cine es un arte que transmite ideas a través de la narración de historias, mediante imágenes que impactan en el aspecto psicoemocional de las personas. El cine nos sitúa en escenarios donde se muestran las relaciones humanas, en contextos difíciles de reproducir, los cuales nos permiten explorar la esfera de los sentimientos frente a situaciones de salud-enfermedad, de ponerse en lugar del “otro”: de la persona que sueña, padece y sufre, de los profesionales que intervienen, de la familia que convive, cuida, sufre con el enfermo, de los amigos... Y entre esos escenarios, sin duda, se encuentra el proceso de envejecimiento y los diferentes factores que influyen en él. Y sin embargo no suele prestársele excesiva atención a la aportación que el cine ha realizado y realiza como elemento de reflexión, análisis, debate y aprendizaje, más allá del mero entretenimiento en el que muchas veces se enmarca el cine. Pero, ¿cómo ha tratado el cine a las personas mayores? ¿cómo aborda las interrelaciones de las personas mayores con su entorno, su familia, su proceso de salud-enfermedad, sus miedos, sus emociones? ¿Trata igual a las personas mayores con independencia de su género? Y lo que puede ser más interesante, ¿contribuye el cine a mitigar o eliminar los tópicos y estereotipos existentes en el imaginario común en torno a las personas mayores?

  13. The Cine Club de Lima

    Directory of Open Access Journals (Sweden)

    Ricardo Bedoya

    2009-10-01

    Full Text Available Cine Club de Lima was the most important cinematography culture spreading institution of the fifties. It was also the precursor of other movie clubs of following decades, which would bring together important Peruvian intellectuals from every art form, who would together promote cultural entertainment. This piece describes ”Cine Club Lima” origins and dissolution, while taking into account its programs.

  14. Cine chileno e industria… el desafío que falta

    Directory of Open Access Journals (Sweden)

    Fernando Véliz M.

    2006-01-01

    Full Text Available El cine chileno es un campo discursivo de la industria audiovisual aún en proceso de crecimiento. Su historia está cargada de imprecisiones y múltiples inicios que muchas veces quedan truncos; es un cine que se ha comprometido con los problemas sociales, pero que también ha sabido de lejanías y silencios impuestos; es un cine artesanal que aspira a mirar como industrial; es un cine que narra desde el tercer mundo, muchas veces con un 98% de consumo (en sus momentos más fuertes de producción norteamericana; es decir, es un cine que se ha formado en la autogestión absoluta de su capital simbólico. Es un cine que, por medio de libros y películas de culto, está generando una nueva camada de directores, los cuales buscan comprender su rol en esta industria que hoy, ya con el pasar del tiempo, tiene audiencias cautivas. Es un cine que a ratos camina junto al Estado y, en otras ocasiones, es la soledad su compañera de ruta. Es un cine fundado en la creatividad, búsqueda y superación de su oficio, y que poco a poco, comprende que el valor agregado está en sus historias locales.

  15. Free-breathing steady-state free precession cine cardiac magnetic resonance with respiratory navigator gating.

    Science.gov (United States)

    Moghari, Mehdi H; Komarlu, Rukmini; Annese, David; Geva, Tal; Powell, Andrew J

    2015-04-01

    To develop and validate a respiratory motion compensation method for free-breathing cardiac cine imaging. A free-breathing navigator-gated cine steady-state free precession acquisition (Cine-Nav) was developed which preserves the equilibrium state of the net magnetization vector, maintains the high spatial and temporal resolutions of standard breath-hold (BH) acquisition, and images entire cardiac cycle. Cine image data is accepted only from cardiac cycles occurring entirely during end-expiration. Prospective validation was performed in 10 patients by obtaining in each three complete ventricular image stacks with different respiratory motion compensation approaches: (1) BH, (2) free-breathing with 3 signal averages (3AVG), and (3) free-breathing with Cine-Nav. The subjective image quality score (1 = worst, 4 = best) for Cine-Nav (3.8 ± 0.4) was significantly better than for 3AVG (2.2 ± 0.5, P = 0.002), and similar to BH (4.0 ± 0.0, P = 0.13). The blood-to-myocardium contrast ratio for Cine-Nav (6.3 ± 1.5) was similar to BH (5.9 ± 1.6, P = 0.52) and to 3AVG (5.6 ± 2.5, P = 0.43). There were no significant differences between Cine-Nav and BH for the ventricular volumes and mass. In contrast, there were significant differences between 3AVG and BH in all of these measurements but right ventricular mass. Free-breathing cine imaging with Cine-Nav yielded comparable image quality and ventricular measurements to BH, and was superior to 3AVG. © 2014 Wiley Periodicals, Inc.

  16. SU-E-J-234: Application of a Breathing Motion Model to ViewRay Cine MR Images

    International Nuclear Information System (INIS)

    O’Connell, D. P.; Thomas, D. H.; Dou, T. H.; Lamb, J. M.; Yang, L.; Low, D. A.

    2015-01-01

    Purpose: A respiratory motion model previously used to generate breathing-gated CT images was used with cine MR images. Accuracy and predictive ability of the in-plane models were evaluated. Methods: Sagittalplane cine MR images of a patient undergoing treatment on a ViewRay MRI/radiotherapy system were acquired before and during treatment. Images were acquired at 4 frames/second with 3.5 × 3.5 mm resolution and a slice thickness of 5 mm. The first cine frame was deformably registered to following frames. Superior/inferior component of the tumor centroid position was used as a breathing surrogate. Deformation vectors and surrogate measurements were used to determine motion model parameters. Model error was evaluated and subsequent treatment cines were predicted from breathing surrogate data. A simulated CT cine was created by generating breathing-gated volumetric images at 0.25 second intervals along the measured breathing trace, selecting a sagittal slice and downsampling to the resolution of the MR cines. A motion model was built using the first half of the simulated cine data. Model accuracy and error in predicting the remaining frames of the cine were evaluated. Results: Mean difference between model predicted and deformably registered lung tissue positions for the 28 second preview MR cine acquired before treatment was 0.81 +/− 0.30 mm. The model was used to predict two minutes of the subsequent treatment cine with a mean accuracy of 1.59 +/− 0.63 mm. Conclusion: Inplane motion models were built using MR cine images and evaluated for accuracy and ability to predict future respiratory motion from breathing surrogate measurements. Examination of long term predictive ability is ongoing. The technique was applied to simulated CT cines for further validation, and the authors are currently investigating use of in-plane models to update pre-existing volumetric motion models used for generation of breathing-gated CT planning images

  17. Cine-Club

    CERN Multimedia

    Cine-Club

    2013-01-01

    The CERN CineClub is a meeting point every Thursday for anyone who wants to discover, discuss, and appreciate cinema with people who are truly interested in the art of the moving image. In the actual context where downloading became easier than cooking an egg, one might wonder why bother when it can be watched on any computer. Well, cinema is not an individual activity. What the CineClub offers is a big screen with good quality image and sound. It also offers a careful selection, for allowing people to (re-)discover new and forgotten authors. Finally, it offers the opportunity for meeting people sharing a common interest. So come every Thursday, and see by yourself that watching films can actually be a real party! Every Thursday at 20 h 00 Council Chamber, 503/1-001 Programme June 2013 Science Fiction Cycle “Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.” 6th June 2...

  18. CineGlob

    CERN Multimedia

    CineGlob

    2014-01-01

    CERN will be hosting the next CineGlobe International Film Festival from March 18 to 23 at the Globe of Science and Innovation with the theme “Beyond the Frontier”, This 4th edition will see 66 short films “inspired by science” in competition, including fiction films as well as documentaries. From Tuesday the 18th to Friday the 21st, special lunch sessions are organized from 12:30 to 13:30. Food will be available for purchase at the tent “Café Cinéma” next to the Globe. Special evenings While the short film screenings are the heart of the festival, every year CineGlobe also organizes compelling special events every night, from feature films to special musical performances: Tuesday 18th: The Swiss premiere of the acclaimed documentary film Particle Fever. Presented by BBC Storyville with Fabiola Gianotti and director Mark Levinson in attendance; Wednesday 19th: The result of the “Story Matter” Hacka...

  19. Reflexionando sobre la vejez a través del cine. Una aproximación incompleta

    OpenAIRE

    Pinazo Hernandis, Sacramento

    2013-01-01

    Reflexionando sobre la vejez a través del cine. Una aproximación incompleta Existen en la sociedad muchos estereotipos y prejuicios en torno a las personas mayores, que se reflejan tanto en la vida cotidiana como en los medios de comunicación y también en el cine. En una sociedad audiovisual como la nuestra, la imagen es una importante fuente de conocimiento, y el cine se convierte en un excelente recurso didáctico para favorecer y motivar el proceso de enseñanza-aprendizaje; es una excelente...

  20. Cine-Club

    CERN Multimedia

    Cine-Club

    2011-01-01

    Thursday 10 November 2011 at 20:30 CERN Council Chamber The Counterfeiters / Die Fälscher By: Stefan Ruzowitzky (Germany/Austria, 2007) 98 min With: Karl Markovics, August Diel, Devid Striesow The Counterfeiters is the true story of the largest counterfeiting operation in history, set up by the Nazis in 1936. Master counterfeiter Salomon ‘Sally’ Sorowitsch, a Jew without morals, is arrested and sent to Mauthausen concentration camp, where he weasels through by offering his ‘artistic’ services. After transfer to Sachsenhausen he’s given an official alternative: taking ‘artistic’ charge of a cons teams assigned to produce perfect forgeries of allied banknotes for the Third Reich. Survivor Sally accepts, but conscience matters among the team prove no less dangerous then a sadistic jailer, which only the CO may keep in check. Original version German; English subtitles Entrance: 2 CHF Projection from DVD http://cine...

  1. CINE: Comet INfrared Excitation

    Science.gov (United States)

    de Val-Borro, Miguel; Cordiner, Martin A.; Milam, Stefanie N.; Charnley, Steven B.

    2017-08-01

    CINE calculates infrared pumping efficiencies that can be applied to the most common molecules found in cometary comae such as water, hydrogen cyanide or methanol. One of the main mechanisms for molecular excitation in comets is the fluorescence by the solar radiation followed by radiative decay to the ground vibrational state. This command-line tool calculates the effective pumping rates for rotational levels in the ground vibrational state scaled by the heliocentric distance of the comet. Fluorescence coefficients are useful for modeling rotational emission lines observed in cometary spectra at sub-millimeter wavelengths. Combined with computational methods to solve the radiative transfer equations based, e.g., on the Monte Carlo algorithm, this model can retrieve production rates and rotational temperatures from the observed emission spectrum.

  2. Cine Letras Goytisolo Cartelera

    Directory of Open Access Journals (Sweden)

    Flávio Pimenta de Souza

    2011-10-01

    Full Text Available Resumo: Estudo de investigação sobre a obra literária do escritor Juan Goytisolo em que se analisam comparativamente as técnicas cinematográficas do projeto Dogma 95 e as técnicas literárias do referido autor.Palavras-chave: Literatura espanhola; Juan Goytisolo; cinema.Resumen: Estúdio de investigación sobre la obra literaria del escritor Juan Goytisolo en el que se analizan comparativamente las técnicas cinematográficas del proyecto Dogma 95 y las técnicas literarias de dicho autor.Palabras-clave: Literatura española; Juan Goytisolo; cine.Keywords: Spanish literature; Juan Goytisolo; cinema.

  3. Discursos subversivos en el cine no hablado

    Directory of Open Access Journals (Sweden)

    Rodríguez Fernández, M.ª del Carmen

    2012-12-01

    Full Text Available “Subversive discourses in silent films” aims to analyse the gender transgression that emerges in certain movies of the silent period. These being silent films, their meaning can only be understood from the content of the images. Directors of the silent period were aware of the importance of images and of their power to put across their views to spectators. The field of filmmaking was new but it was not ungendered, and women filmmakers knew that their films were the vehicle to make spectators aware of their feminist positions. Le matelas alcoolique, La souriante Mme. Beudet and Dora Films of America Shorts are examples of this privilege since, although they belong to two periods of silent film history and have different aims, the directors and the films selected are good examples to be revisited with a gender perspective.

    “Discursos subversivos en el cine no hablado” se propone analizar las transgresiones de género que aparecen en algunas películas del cine mudo. Por sus características al tratarse de un cine no hablado, lo que sugieren algunas imágenes es fundamental para entender los significados de las películas. Las directoras de aquella época eran conocedoras de la importancia de las imágenes y del poder que les confería la cámara para expresar sus reivindicaciones al público espectador. El campo de la cinematografía era nuevo, pero tenía género y las directoras sabían que sus películas eran el vehículo para dar a conocer su articulación como feministas. Le matelas alcoolique, La souriante Mme. Beudet y Dora Films of America Shorts son ejemplos de este privilegio puesto que, aunque las películas de esta muestra pertenezcan a dos etapas del cine mudo y de que sus propósitos fueran diferentes, las directoras y las películas seleccionadas son ejemplos merecedores de una revisión con perspectiva de género.

  4. De Dickson a Lucas: Descubriendo el cine digital

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo Cortés S.

    2015-01-01

    Full Text Available La irrupción de la televisión en la vida cotidiana de los ciudadanos urbanos (1940 obligó al cine a cambiar su proporción de pantalla a fin de atraer espectadores. En América Latina los cineastas se han introducido de lleno en los terrenos digitales. El cine digital crea un cambio profundo en la forma en que las películas se envían, distribuyen y exhiben. Se trata también de renacer el cine independiente con la posibilidad de crear sistemas de producción y distribución de costo bajo y abrir exhibiciones propias por fuera de los circuitos comerciales. Es un hecho la coexistencia de cine, vídeo e Internet como las tres bases de una emergente industria contemporánea basada en la televisión digital (DTV, el formato de alta definición (HDTV y el soporte de DVD (vídeo digital versátil

  5. La representación de mundos en la novela y en el cine. A propósito de "La inmortalidad", de Milan Kundera

    OpenAIRE

    Martín Jiménez, Alfonso

    1993-01-01

    En su novela "La inmortalidad", Milan Kundera trata el tema de la adaptación de la novela al cine, desarrollando una serie de estrategias encaminadas a volver imposible la adaptación de su novela al cine, como había ocurrido con su obra anterior, "La insoportable levedad del ser". Sin embargo, solo la extensa representación del componente ensayístico-argumentativo propio del mundo del autor, común a muchas de sus novelas, garantiza que la adaptación al cine sea imposible. El cine puede repres...

  6. Cine-Club

    CERN Multimedia

    Cine-Club

    2011-01-01

    Lundi 12 décembre 2011 à 18:30 Salle du Conseil Comme chaque année avant Noël, le CINE-CLUB du CERN est heureux d’inviter petits et grands à une projection gratuite du film : Ponyo sur la falaise (Japon, 2008, Hayao Miyazaki) Le petit Sosuke vit avec sa mère sur une haute falaise surplombant la mer. Un beau jour, il découvre sur la plage caillouteuse Ponyo, une petite fille poisson. Ponyo est si fascinée par Sosuke et le monde terrestre que son désir le plus cher est de devenir un être humain. Mais Fujimoto, son magicien de père, n’est pas du tout d’accord avec cette idée et il la force à regagner les profondeurs de l’océan. Bien décidée à revoir Sosuke, Ponyo s’échappe de sa prison sous-marine, mais ce faisant elle déclenche une immense catastroph...

  7. Cine-Club

    CERN Multimedia

    CineClub

    2014-01-01

      On the occasion of CERN’s 60th anniversary the CERN CineClub will be showing films from all CERN member states Thursday 10 April 2014 at 20:00 CERN Council Chamber   The Bothersome Man     Directed by Jens Lien (Norway, 2006) 95 minutes   Forty-year-old Andreas arrives in a strange city with no memory of how he got there. He is presented with a job, an apartment-even a beautiful girlfriend. But before long, Andreas notices that something is wrong. The people around him seem cut off from any real emotion, and communicate only in superficialities. All this seems to be governed by a shadowy group of technicians, the ominous Caretakers’, who make sure the city runs smoothly. When they find Andreas is not adjusting to his new life, they keep an increasing watch over his activities...”The Bothersome Man” is a fantastic fable, a parable for modern society’s consumerism and obsession with ap...

  8. CERN CINE CLUB

    CERN Multimedia

    CERN CINE CLUB

    2010-01-01

    CERN CINE CLUB Thursday 24 June 2010 at 20:30 / Jeudi 24 Juin 2010 à 20:30 CERN Main Auditorium / Amphithéâtre Principal   The Raggedy Rawney By/de : Bob Hoskins (UK, 1988) - 104 min With/avec: Dexter Fletcher, Bob Hoskins, David Hill, Zoe Nathanson, Zoe Wanamaker Bob Hoskins makes his directorial debut with this lyrical, mystical fable about the strength of family and the transcendence of love. When a young military recruit named Tom goes AWOL after his first taste of battle, he must disguise himself with face paint and women’s clothing to avoid being captured by his vengeful commanding officer. He is instead discovered and taken in by Darky, the leader of an eccentric group of traveling gypsies, who thinks he is a «rawney», a half-mad, half-magical woman who brings good fortune. But when Tom begins a love affair with Darky’s daughter, he sets off a chain reaction of events that will soon put all of their lives in grave ...

  9. Cine Club - Special Event

    CERN Multimedia

    Cine Club

    2017-01-01

    Special event on Thursday 4 May 2017 at 18:30 CERN Council Chamber In collaboration with the CERN Running Club and the Women In Technology initiative, the CERN CineClub is happy to announce the screening of the film Free to Run Directed by Pierre Morath Switzerland, 2016, 99 minutes Today, all anybody needs to run is the determination and a pair of the right shoes. But just fifty years ago, running was viewed almost exclusively as the domain of elite male athletes who competed on tracks. With insight and propulsive energy, director Pierre Morath traces running's rise to the 1960s, examining how the liberation movements and newfound sense of personal freedom that defined the era took the sport out of the stadiums and onto the streets, and how legends like Steve Prefontaine, Fred Lebow, and Kathrine Switzer redefined running as a populist phenomenon. Original version French; English subtitles. http://freetorun.ch/ Come along to watch the film and learn more about the history of popular races and amat...

  10. Cine en la biblioteca

    Directory of Open Access Journals (Sweden)

    Iñaki Esteban Bilbao

    2015-01-01

    Full Text Available Comunicación y Género, acopia trabajos que vinculan a la mujer y la comunicación y sus esfuerzos por no ser consideradas inferiores. Del libro a la pantalla, acerca a algunas reflexiones sobre el proceso que lleva del libro a la pantalla por la polémica que despierta la adaptación de las novelas, puesto que muchos señalan que la trama se ve desfigurada. Se agregan varios temas sobre el cine. En "Días de Radio", se plantea el que a pesar de la censura y los problemas económicos que deben enfrentar, las radios populares de América Latina, siguen ganando espacios, de su desarrollo depende una mayor profundización de la democracia. Tema de debate es Estrategias comunicativas en Chiapas y Haití. Se añaden dos entrevistas a un caricaturista brasileño y a un corresponsal de guerra muy prestigiado.

  11. Movimientos migratorios y cine

    Directory of Open Access Journals (Sweden)

    Manuel Galiano León

    2009-12-01

    Full Text Available Nuestro artículo se ha centrado en el estudio de las películas de mayor distribución comercial para ver cómo éstas han representado el tema de la migración y qué reflexiones sugieren. En general, creemos que el reconocimiento por parte del cine de este fenómeno es positivo y que indudablemente constituye una fuente esencial para comprender las realidades migratorias distinguiendo discursos diversos y explicitando intenciones y hechos que intentan ocultarse u olvidarse.__________________ABSTRACT:Our article focuses on the study of the most commercial movies to check the way they present the subject of immigration and which kind of reflections they suggest. In general, we believe that the recognition of the migration phenomena in the cinema world is positive and it is actually an esential source to understand the reality of migration, being able to recognize different discourses and showing intentions and facts which are hidden or forgotten.  

  12. Bienvenido Mister Cine a la enseñanza de las ciencias

    Directory of Open Access Journals (Sweden)

    Francisco José García Borrás

    2009-01-01

    Full Text Available El profesor de ciencias tiene al alcance de su mano una base de datos increíble, el cine. De este recurso se puede extraer gran cantidad de información. A través de este escrito se procura mostrar como el cine se puede considerar un medio realmente inestimable en la creación de prácticas educativas que fomentan el proceso deenseñanza-aprendizaje, tales como la crítica, la observación, la reflexión e incluso la investigación.

  13. El cine o la teoría del presentimiento

    OpenAIRE

    Santiago Rivadeneira

    2015-01-01

    El cine es el triunfo de la alegoría sobre la realidad a partir de un "protocolo visual" que se cumple de modo inexorable, como la realización de un sueño estético permanente soñado. El cine está destinado a convertirse siempre más en la conciencia colectiva, en el ligamen que nos une a todos. Alegoría y presentimiento que se juntan para explorar la realidad, la percepción, el significado, la conciencia y la imaginación, expuesto de alguna manera en las breves alegorías de Kafka. Alegoría, re...

  14. El poder en el cine

    OpenAIRE

    Brisset Mart??n, Demetrio E.

    2008-01-01

    Desde la antropolog??a visual, se aborda la faceta del Poder relativa a sus diversas manifestaciones. Entre ellas, elegimos el cine, especialmente su g??nero de drama judicial, y analizamos comparativamente El proceso f??lmico de Welles y la novela de Kafka.

  15. Volumetric Arterial Wall Shear Stress Calculation Based on Cine Phase Contrast MRI

    NARCIS (Netherlands)

    Potters, Wouter V.; van Ooij, Pim; Marquering, Henk; VanBavel, Ed; Nederveen, Aart J.

    2015-01-01

    PurposeTo assess the accuracy and precision of a volumetric wall shear stress (WSS) calculation method applied to cine phase contrast magnetic resonance imaging (PC-MRI) data. Materials and MethodsVolumetric WSS vectors were calculated in software phantoms. WSS algorithm parameters were optimized

  16. Roles femeninos en el cine de migraciones en España

    Directory of Open Access Journals (Sweden)

    María Jesús Alonso Seoane

    2011-10-01

    Full Text Available El estudio del cine como medio para el análisis sociológico es poco frecuente todavía en nuestro país. Existen numerosos artículos analizando el cine desde diversos ángulos, también el femenino, especialmente roles como el de la mujer fatal en el cine negro. Pero es menos habitual emplear este formato como parte de un método analítico del que extraer un reflejo social de lo que las pantallas proyectan y, a un tiempo, contribuyen a legitimar como base de una sociedad futura. No obstante, existen pocos medios que sean capaces de reflejar el gran cambio acaecido en la historia reciente de la sociedad española. Este interés documental incrementa su potencial al enfocar en primer plano a las mujeres. Este artículo es una contribución a estudiar un campo tan atractivo como es el cine de migraciones a través de la óptica de los imaginarios sociales.

  17. Presencia de rotavirus durante un proceso de compostaje. Abonos como vectores de contaminación viral

    Directory of Open Access Journals (Sweden)

    María Mercedes Martínez

    2009-12-01

    Full Text Available Rotavirus presence in a waste composting process. Organic fertilizers as vehicles for viral contamination. Objective. To show thepresence of rotavirus in different stages of a composting process: matrices used as raw material, mixture to be composted and the finalproduct. Materials and methods. Immunochromatography, ELISA and RT-PCR were used for viral detection. Results. Rotavirus wasfound in the first composting step, no virus was found in the second step, and some inhibitory substances were found in the third step thatposed difficulties in interpreting the PCR results and therefore providing a concluding result on rotavirus presence in the final product.Conclusions. Organic fertilizers can be vectors of human pathogenic viruses; therefore quality control tests must be implemented to avoidfurther viral dissemination. There are inhibitory substances present in organic fertilizers capable of interfering with the detection tests.

  18. NUEVA YORK, AL OTRO LADO DEL ESPEJO. EL CINE Y LA CIUDAD FUTURA COMO TEXTO / New York, through the looking-glass. Cinema and the future city as a text

    Directory of Open Access Journals (Sweden)

    Luis Miguel Lus Arana

    2016-05-01

    Full Text Available RESUMEN Durante las últimas décadas del XIX, y de manera muy especial con la llegada del nuevo siglo, los mass media dirigieron una mirada preeminente al entorno urbano que los vio nacer, mostrando imágenes de su devenir contemporáneo pero también especulando con un futuro que, en ocasiones, ilustraba más fidedignamente las particularidades de su presente. Con la aparición del cine, privilegiado ojo mecánico con el que registrar la acelerada realidad urbana, este proceso adquiriría una nueva dimensión, y pronto el medio se uniría a esta fructífera especulación, produciendo versiones propias de la ciudad del mañana dotadas de una provechosa capacidad textual. Utilizando el caso paradigmático de Nueva York, “Al otro lado del espejo” propone un análisis de esta capacidad intertextual de la ciudad futura cinematográfica, explorando los diferentes ‘dobles’ distorsionados que de Manhattan, ya sea directa o veladamente, han ofrecido diferentes filmes. Con paradas en Metrópolis, Blade Runner, El Quinto Elemento o Immortel, entre otros, el texto explora la capacidad mayéutica de estos doppelganger urbanos que, situados al otro lado de la pantalla, desvelan rasgos y relaciones de sus referentes reales, y condicionan y modifican nuestra visión de la realidad urbana. SUMMARY In the last decades of the XIX century and especially in the subsequent turn of the century, the mass media turned a prominent gaze on the urban environment that witnessed its birth, showcasing images of its everyday life, and also speculating about a future that, sometimes, depicted more vividly the particularities of its present. With the advent of cinema, a privileged mechanical eye with which to record the accelerated urban reality, this process would rise to a new level, and soon the medium would contribute to this productive speculation, producing its own versions of the city of tomorrow, which showed a useful textual ability. Using the paradigmatic

  19. Vectores recombinantes basados en el virus modificado de ankara (MVA) como vacunas preventivas y terapéuticas contra el SIDA

    OpenAIRE

    Heeney, Jonathan L.; Mooij, Petra; Nájera García, José Luis; Jiménez, Victoria; Esteban, Mariano; Gómez, Carmen E.

    2005-01-01

    Vectores Recombinantes basados en el Virus Modificado de Ankara (MVA) como Vacunas Preventivas y Terapéuticas contra el SIDA. Losvirus recombinantes de la invención contienen secuencias que se encuentran insertadas en el mismo sitio de inserción del MVA y permiten la expresión simultánea de varios antígenos, una proteína Env del VIH-I consistente en una proteína gpl20 carente de secuencias correspondientes a la proteína gp41, y una proteína quiméricade fusión de Gag, Pol y Nef. Son virus esta...

  20. Mundos utópicos y distópicos: El progreso y la ciencia como síntomas modernos en el cine mexicano de ciencias ficción (2002-2012)

    OpenAIRE

    González Garza, Alejandro; Zavala Scherer, Diego

    2013-01-01

    El presente artículo aborda, de manera monográfica, la producción de largometrajes mexicanos asociados al género de ciencia ficción, en el periodo del 2002 al 2012. El texto parte de entender este género como un producto cultural vinculado profundamente con la sociedad que lo imagina. Esta forma de proposición de mundos posibles, futuros o paralelos, es la clave de análisis de los deseos y peligros que, en este caso la sociedad mexicana, vislumbra sobre su propio devenir histórico...

  1. Características de consumo de los espectadores mexicanos en salas de cine comerciales

    OpenAIRE

    David Fernando Lozano Treviño

    2018-01-01

    El presente artículo de investigación analiza los factores del cine hollywoodense para controlar el mercado de películas en México. Detalla la manera en que las Organizaciones de Producción Cinematográficas (OPC) masifican sus producciones. Aborda la producción de películas en México, la asistencia a salas de cine, los ingresos en taquilla y la venta de boletos para películas mexicanas como reflejo de los deseos de consumo de los espectadores nacionales. Plasma la transformación que atravesó ...

  2. La calle, cuna de criminales: barriadas, niños y gangsters en el cine neoyorkino

    OpenAIRE

    James Sanders

    2006-01-01

    El artículo explora el imaginario que el cine neoyorkino construyó de las barriadas de su ciudad a partir de la década del treinta. El eje que guía la discusión es la compleja relacion entre espacio publico -en especial la calle- y las patologías sociales: alcoholismo, prostitución, analfabetismo y criminalidad. Se plantea que el cine se preocupó, en una serie numerosa de cintas, de denunciar las calles de las barriadas como productora de criminales, lo que causó un alto impacto en la opinión...

  3. Miércoles al cine

    OpenAIRE

    Aguado Franco, Juan Carlos

    2014-01-01

    Se analiza un caso concreto de demanda ante una iniciativa empresarial: los miércoles al cine. Se analiza un caso concreto de demanda ante una iniciativa empresarial: los miércoles al cine. Fundamentos del Análisis Económico

  4. Carmen Dauset Moreno, primera musa del cine estadounidense

    OpenAIRE

    Mora Contreras, Francisco Javier

    2014-01-01

    Este artículo se propone analizar la importancia de la bailarina española Carmen Dauset Moreno para la historia del cine. Conocida en el mundo del vaudeville como Carmencita, fue la primera mujer que apareció en dos breves películas para kinetoscopio realizadas en el estudio de Edison en marzo de 1894. En este sentido, el artículo trata de contextualizar la aparición de la artista española en estas películas y plantea cuestiones sobre el significado de las mismas en el desarrollo de las fases...

  5. Elvis Presley y la tradicion del cine musical de Hollywood

    OpenAIRE

    Carrega, Jorge

    2013-01-01

    Por ter sido publicado numa revista espanhola, o artigo apresenta o título e o resumo em castelhano, mas o texto está em português. Depreciadas por la crítica cinematográfica, las películas protagonizadas por Elvis Presley son ejemplos relevantes de uno de los principales subgéneros del cine musical de Hollywood, la comedia musical protagonizada por intérpretes de la canción popular tornados actores como Bing Crosby, Frank Sinatra, Carmen Miranda, Doris Day y Dean Martin. Pioneros en...

  6. Cine y Filosofía. Sus rostros

    Directory of Open Access Journals (Sweden)

    Jose Fernando Saldarriaga

    2014-12-01

    Full Text Available El presente estudio es un esquema para construir una cartografía del rostro en la obra cinematográfica del director sueco Ingmar Bergman. Películas como: Crisis (Kris, 1946, Un verano con Mónica (Som- maren med Monika, 1953, El silencio (Tystnaden, 1963 y Fresas Salvajes (Smultronstället, 1957, permiten aplicar las nociones filosóficas estudiadas por Gilles Delueze: rizoma, plano inmanente, plano afección, rostriedad en el marco histórico y estético. Cine y filosofía son los medios de estos pensadores.

  7. Filmografía y bibliografía del cine negro americano (1930-1960

    Directory of Open Access Journals (Sweden)

    Dr. José Luis Sánchez Noriega

    1999-01-01

    Full Text Available La actualidad del cine negro queda patente con el éxito de crítica y de público de obras recientes como Casino (Martin Scorsese, 1995, La brigada del sombrero (Lee Tamahori, 1996, Al caer el sol (Robert Benton, 1996 o Donnie Brasco (Mike Newell, 1996. Hace unos meses han aparecido dos libros que se ocupan de este género y ofrecen una selección de un centenar de películas: El cine negro en 100 películas de Antonio Santamarina (Alianza, Madrid, 1999 y Obras maestras del cine negro (Mensajero, Bilbao, 1998, de quien firma estas líneas.

  8. The exhibitions of El Lissitzky through Cine-Eye

    Directory of Open Access Journals (Sweden)

    Luz Paz-Agras

    2017-04-01

    Full Text Available Las Vanguardias de principios del siglo XX exploran la capacidad creativa de los nuevos medios en la arquitectura, como la cámara fotográfica o el cine. En proyectos propicios para la experimentación, autores como El Lissitzky parten de la asimilación del ojo humano a un objetivo mecánico que permite la formulación de nuevos conceptos espaciales. Una lectura en paralelo de recursos del Cine-ojo de Vertov sobre proyectos expositivos de El Lissitzky, sitúa algunas de sus propuestas como ejemplos paradigmáticos de la experimentación perceptiva del espectador sobre el objeto artístico y, en un sentido más amplio, sobre la arquitectura. A través del análisis de recursos cinematográficos de la película El Hombre con la cámara se interpretan aspectos arquitectónicos en los espacios expositivos del Gabinete de los Abstractos y PRESSA, trazando vínculos que disuelven los límites disciplinares.

  9. Cine y turismo: intersecciones polivalentes.

    OpenAIRE

    Rey-Reguillo, Antonia del

    2012-01-01

    Con el objeto de servir de introducción a los tres artículos que componen el dossier sobre Cine y Turismo contenido en la revista, este texto reflexiona someramente sobre el amplio abanico de intersecciones existente entre las industrias cinematográfica y turística ajustándose al caso concreto de la producción fílmica española considerada en tres etapas concretas: los documentales etnoturísticos surgidos en el período histórico correspondiente a la Segunda República, el documental 'España ins...

  10. Homosexualidad latente en el cine

    OpenAIRE

    Sánchez del Pulgar Legido, Rosa Mª

    2015-01-01

    Desde el principio del siglo XX en los Estados Unidos y Europa, las personas vivían su homosexualidad a escondidas por temor a las leyes que la castigaban; el cine pues, les representa del mismo modo creando una subcultura en la que pueden ser ellos mismos. La cinematografía clásica y los años posteriores se componen de numerosos filmes cargados de representaciones homosexuales de manera oculta. Interpretados desde una lectura queer, conoceremos las mil maneras de sugerir a los gais y a las l...

  11. Historia y cine: un mapa de posibles líneas de análisis en el eje realidad / representación

    Directory of Open Access Journals (Sweden)

    Emilce Fabricio

    2016-04-01

    Full Text Available El artículo rastrea algunas posibles líneas de análisis abiertas para historiadores e historiadoras en el campo de intersecciones de los estudios cinematográficos y de la sociedad. Comienza planteando los orígenes del mismo, para adentrarse en las consideraciones del cine como fuente para la historia y de la historia en el cine. Finalmente se considera el caso particular del cine documental y se problematiza la dualidad realidad/representación.

  12. On the system of cine-angiography

    International Nuclear Information System (INIS)

    Wakamatsu, Koji; Togi, Hideaki; Yokoyama, Hironori

    1979-01-01

    National Institute of Circulatory Disease Centre have four angiography apparatuses which deal with more than 80 cases of cerebral blood vessel and 100 cases of heart blood vessel each month. Most of the angiography is cine-photography. Five more angiography apparatuses are expected to be operated in operation and RI examination rooms in the future. The problems on cine-angiography system were discussed as follows: (1) The proper dose must be chosen in order to obtain good quality of cine-images. (2) The cine resolution depends much on dose. (3) The lower X-ray tube voltage can give better contrast. (4) Suitable capacity for an X-ray tube is over 60 kW at 2 sec rating. (5) Cine-autophotography requires rapid response and a circuit for lock. (6) Influence of side scattering can be solved by a blanking circuit in biplane cine-photography. (7) Self-developing is desirable to improve the quality of cine-images. (Kobatake, H.)

  13. Cine y literatura: Narrativa de la identidad

    OpenAIRE

    Laverde Román, Alejandra; Parra, Martha Ligia; Montoya Giraldo, Alejandra; Uribe Alzate, Yennifer; Tobar Álvarez, Margarita

    2010-01-01

    Este artículo es resultado de la investigación La narrativa literaria y audiovisual en la construcción de la identidad cultural colombiana. Una mirada desde el cine y la literatura: adaptaciones de obras literarias llevadas al cine entre 1920 y 2008-1. En el presente texto se desarrolla un análisis de la relación de cine y literatura en la construcción de la identidad colombiana, a partir del rastreo bibliográfico de la crítica y las historias literarias y cinematográficas a un corpus selecci...

  14. Cine y literatura: narrativa de la identidad

    OpenAIRE

    Román, Alejandra Laverde; Parra, Martha Ligia

    2010-01-01

    Este artículo es resultado de la investigación La narrativa literaria y audiovisual enla construcción de la identidad cultural colombiana. Una mirada desde el cine y laliteratura: adaptaciones de obras literarias llevadas al cine entre 1920 y 2008-1.En el presente texto se desarrolla un análisis de la relación de cine y literatura enla construcción de la identidad colombiana, a partir del rastreo bibliográfico de lacrítica y las historias literarias y cinematográficas a un corpus seleccionado...

  15. Cine MR imaging in valvular heart disease

    Energy Technology Data Exchange (ETDEWEB)

    Nishimura, Tsunehiko; Yamada, Naoaki; Itoh, Akira; Miyatake, Kunio

    1989-01-01

    Cine MR Imaging was carried out using FLASH (fast low angle shot) which employes TE of 16 msec and TR of 30/similar to/40 msec. Regurgitant jet was visible as discrete area of low signal intensity extending from the incompetent valve into the respective cardiac chamber. In 20 patients with mitral regurgitation, the correlation of the length and area of mitral jet by cine MR and color doppler mapping was 0.74 and 0.71, respectively. Cine MR imaging is a promising modality for detection and quantification of valvular heart disease.

  16. O Cine Debate promovendo encontros do cinema com a escola

    Directory of Open Access Journals (Sweden)

    Andreza Berti

    2013-12-01

    Full Text Available Partindo da hipótese-cinema, de Alain Bergala (2008, reconhecemos o cinema como alteridade, pois a experiência com o cinema permite ser o outro, viver em outro território, flanar por diferentes espaços e tempos. Nesse processo, o cinema pode entrar na escola como potência criadora: promover o encontro dos(as alunos(as com diferentes experiências estéticas; provocar a dúvida, o questionamento, colocando em xeque o lugar-comum, os padrões socioculturais, as identidades fixas. A experiência com Cine Debate em escolas públicas de Ensino Médio, nos municípios do Rio de Janeiro e Niterói, permitiu problematizar a produção cinematográfica, favorecer a aproximação do cinema com a escola, contribuir para a ampliação do número de filmes brasileiros assistidos, questionar o que consideramos "olhar". Por meio de uma pesquisa qualitativa, percebemos o desejo dos estudantes em aprofundar os temas discutidos, conhecemos seus gêneros cinematográficos preferidos e a frequência com que assistem a filmes. Esse resultado indica a continuidade da experiência com o Cine Debate.

  17. El devenir del cine musical de Hollywood

    Directory of Open Access Journals (Sweden)

    Moreno Cardenal, Luisa

    2015-08-01

    Full Text Available Film genres which were defined and developed by Hollywood during the early decades of the 20th century are no longer the same: a hundred years after they were first born, they are undergoing profound changes and a thorough revision. As a result, new sub-genres are emerging and others that were once essential to the identity of film as a mass phenomenon are becoming blurred. One such film genre on the verge of extinction is the musical. This paper briefly traces out the way musicals developed, from their beginnings through to the early years of the 21st century, enabling the keys to their success and their decline to be identified. Some major productions, with outstanding soundtracks or choreography building an interaction between the leading roles, will be especially examined.Los géneros cinematográficos delimitados por la industria de Hollywood a lo largo de las primeras décadas del siglo XX viven, cien años después, un proceso de revisión y metamorfosis que da como resultado el nacimiento de nuevos subgéneros y el desdibujamiento de otros que, durante décadas, tuvieron una entidad inequívoca e imprescindible para entender el cine como espectáculo y fenómeno de masas. Uno de esos géneros en periodo de extinción es el musical. Mostramos aquí un somero recorrido por el devenir del género desde su nacimiento hasta comienzos del siglo XXI, tratando de localizar las claves de su éxito y de su declive y fijándonos especialmente en algunos títulos importantes que cuentan, además de con maravillosas bandas sonoras, con números de baile escenificados para construir la dialéctica entre sus protagonistas.

  18. Mundos utópicos y distópicos: el progreso y la ciencia como síntomas modernos en el cine mexicano de ciencias ficción / Utopian and Dystopian Worlds: Science and Progress as Modern Symptoms in Mexican Sci-Fi Films (2002-2012

    Directory of Open Access Journals (Sweden)

    Alejandro González Garza

    2016-08-01

    Full Text Available El presente artículo aborda, de manera monográfica, la producción de largometrajes mexicanos asociados al género de ciencia ficción, en el periodo del 2002 al 2012. El texto parte de entender este género como un producto cultural vinculado profundamente con la sociedad que lo imagina. Esta forma de proposición de mundos posibles, futuros o paralelos, es la clave de análisis de los deseos y peligros que, en este caso la sociedad mexicana, vislumbra sobre su propio devenir histórico. A partir de la caracterización de las historias, se hace una tipología que distingue dos diferentes narrativas dela ciencia ficción: las duras y las blandas. El texto se aboca al análisis de los casos que desarrollan un mundo narrativo completo vinculado a la ciencia, el progreso o el futuro como bases del argumento fílmico (ciencia ficción dura para rastrear las huellas de la modernidad y los discursos universalistas que aún forman parte del proyecto nacional mexicano filtrado en su producción cinematográfica. Este tipo de relatos son esfuerzos por suturar la crisis del progreso en la época contemporánea, lo que plantea a la postmodernidad mexicana como una reinvención moderna, integradora y conciliadora. El texto es un análisis desde tres aristas: el contexto histórico y social de la modernidad en México; el género de ciencia ficción y su relación con esta realidad; y finalmente los filmes que encarnan las preocupaciones a través de los temas y los estilos que nos muestran.Palabras clave: ciencia ficción, cine mexicano, modernidad, posmodernidad, historia futurista, mito, progreso, ciencia, ciencia ficción dura, género cinematográfico.AbstractThis article addresses, as a monographic review, the Mexican long feature film production associated to the sci-fi genre in the decade from two thousand two, to two thousand twelve. The text understands this genre as a cultural product profoundly attached to the society that imagines it. This way

  19. Alphitobius diaperinus spp como veiculador de Clostridium perfringens em granjas avícolas do interior paulista - Brasil Alphitobius diaperinus spp as a vector of Clostridium perfringens in broiler houses in the state of São Paulo - Brazil

    Directory of Open Access Journals (Sweden)

    Juliano Vittori

    2007-06-01

    Full Text Available O besouro Alphitobius diaperinus spp (cascudinho é visto como uma importante praga da avicultura mundial. Por suas características comportamentais e hábitos biológicos que dificultam seu controle, é considerado um vetor de agentes patogênicos. O objetivo desta pesquisa foi investigar o cascudinho como possível vetor de Clostridium perfringens em granjas avícolas industriais, localizadas em diferentes regiões do interior Paulista. Através de métodos bacteriológicos convencionais, em 40 amostras analisadas, foram encontradas contagens significativas de Clostridium perfringens em todas elas. A partir dos resultados obtidos, pôde-se demonstrar o potencial deste inseto como vetor do agente responsável pela enterite necrótica.The Alphitobius diaperinus spp (lesser mealworm is considered an important world poultry plague. Due to its behavior characteristics and biological habits that make its control difficult it is considered a vector of pathogenic agents. The objective of this research was to investigate the little mealworm as possible vector of Clostridium perfringens in broiler houses, located in different parts of the state of São Paulo. Through conventional bacteriological methods, 40 samples of little mealworm collected were analyzed. Clostridium perfringens was found in all of the samples and the potential of this insect as vector of the necrotic enteritis was demonstrated.

  20. “Delicias holandesas” dirigidas por mujeres: cine contra estereotipos

    Directory of Open Access Journals (Sweden)

    Fernández Rodríguez, Carolina

    2012-12-01

    Full Text Available This paper offers a brief history of women filmmakers in The Netherlands from the 1920s to the present, in an attempt to achieve two goals. The first aim is to show that despite the scarcity of women directors in the histories of the cinema of the Netherlands, there are many women in the Dutch film industry, particularly so given its small size in the European context. Secondly, this paper aims to show that many of the myths that have been commonly associated with Dutch cinema, such as its inability to produce good fiction films or to handle important socio-political issues, can be easily dismantled after seeing the work of Dutch women filmmakers. Although it is certainly much easier to find documentaries than dramas among their works, it is nevertheless true that they have also produced many of the latter. Moreover, in both categories they have explored complex and controversial themes that are highly relevant to their society, as well as opening up new thematic paths along which male directors had never travelled. Issues related to the new national identities resulting from the multicultural contexts of present-day Europe are among the former, while the latter is best represented by topics traditionally dealt with by feminism, such as the question of abortion, rape or women’s submission in patriarchal societies, among others.

    Este artículo ofrece una breve historia del trabajo realizado por las directoras de cine de los Países Bajos desde los años veinte del pasado siglo hasta la actualidad con el fin de lograr dos objetivos. En primer lugar, se trata de probar que, pese a la escasa presencia de directoras holandesas en las historias sobre cine holandés, su número es muy elevado, especialmente si consideramos que la industria cinematográfica de su país es relativamente pequeña. En segundo lugar, se busca demostrar que muchos de los mitos que se han asumido como ciertos sobre el cine holandés, como su incapacidad para hacer

  1. Las Formas Políticas del Cine Argentino: Montajes, Disrupciones y Estéticas de una Tradición Political Forms of Argentinean Cinema: Editing, Disrupting, and the Aesthetics of a Tradition

    OpenAIRE

    Esteban Dipaola

    2010-01-01

    El artículo indaga y analiza las formas políticas del cine argentino desde los años sesenta a la actualidad, pero centrándose especialmente en el cine argentino contemporáneo (1995-2010). Se propone hablar de «formas políticas» y no de «cine político» como ejercicio para pensar la política y la estética en sus relaciones inmanentes. Así, establece tres períodos: los años sesenta y setenta como la irrupción de la política en el cine; los años ochenta como el desplazamiento de la política por l...

  2. Bogotá como ciudad híbrida: construcción de una topología simbólica y de unos imaginarios a partir de la relación literatura-cine en clave de novela negra

    OpenAIRE

    Sosa Ruiz, Diego Hernando

    2015-01-01

    "La relación literatura y cine ha sido la de los dos códigos diferentes que se retroalimentan y retan, más cuando hablamos de la construcción de ciudad. Desde la novela negra, ""Perder es cuestión de método"" construye una Bogotá multicultural, agrasiva pero con un espacio para la solidaridad."

  3. Características de consumo de los espectadores mexicanos en salas de cine comerciales

    Directory of Open Access Journals (Sweden)

    David Fernando Lozano Treviño

    2018-01-01

    Full Text Available El presente artículo de investigación analiza los factores del cine hollywoodense para controlar el mercado de películas en México. Detalla la manera en que las Organizaciones de Producción Cinematográficas (OPC masifican sus producciones. Aborda la producción de películas en México, la asistencia a salas de cine, los ingresos en taquilla y la venta de boletos para películas mexicanas como reflejo de los deseos de consumo de los espectadores nacionales. Plasma la transformación que atravesó el cine mexicano después de la década de los 70. Se mencionan algunas estratégicas para llegar a captar espectadores y consideraciones para las OPC mexicanas en la búsqueda de generar mercados. Se ubica la correlación que hay entre los deseos de los espectadores porque las películas que se proyectan en salas comerciales estimulen entre los espectadores el aprecio a las artes, la reflexión, el aprendizaje y el entretenimiento con el gasto mensual en pesos para ver películas que antepongan el entretenimiento sobre cualquier otra característica del cine.

  4. Farida Benlyazid: cine feminista sobre la identidad personal

    Directory of Open Access Journals (Sweden)

    Torres Calzada, Katjia

    2012-12-01

    Full Text Available This article analyses Tangier’s director Farida Benlyazid’s personal vision of the identity conflict of the Muslim Moroccan woman (a conflict deriving from the tension between the French colonial culture and the Arab-Muslim one as presented in her opera prima Bab samá maftúh / A Door to the Sky (1988, based on a script written by herself. Within the context of Moroccan cinema, Benlyazid is a pioneer in the treatment of the Muslim woman’s role in the Moroccan patriarchal system due both to her peculiar understanding of feminism and to her multicultural upbringing, which allows her to deploy a symbolic language to universalize her films and transmit the value of rites and atavistic rituals of Morocco’s popular collective imaginary and of her own intimate imaginary.

    El presente artículo analiza la visión íntima del conflicto de identidad de la mujer marroquí musulmana –entendido como la tensión entre la cultura colonial francesa y la árabe musulmana– ofrecida por la cineasta tangerina Farida Benlyazid en su opera prima como directora y guionista, Bab samá maftúh / Une porte sur le ciel (“La puerta abierta del cielo”, 1988. Benlyazid es una pionera del cine marroquí en el tratamiento del papel de la mujer musulmana en el seno del patriarcado marroquí por su particular concepción del feminismo y por su formación multicultural, que le permite emplear un lenguaje simbólico para universalizar su cine y transmitir el valor de ritos y rituales atávicos en el imaginario colectivo popular marroquí así como en el de su imaginario íntimo.

  5. El impacto de las innovaciones tecnológicas en el cine de ciencia ficción

    OpenAIRE

    González Sánchez, Luis

    2014-01-01

    La ciencia ficción y la tecnología siempre han ido de la mano. El cine y la literatura de este género han sido, en muchas ocasiones, precursores de los adelantos tecnológicos y técnicos que hoy en día encontramos en los grandes almacenes o tiendas de electrónica como, por ejemplo, las nuevas gafas de Google que han comenzado a comercializarse y que empezaron a ser mostradas en el cine de ciencia ficción de los años setenta y ochenta con las gafas de realidad aumentada. Su uso se b...

  6. Texture analysis of cardiac cine magnetic resonance imaging to detect nonviable segments in patients with chronic myocardial infarction.

    Science.gov (United States)

    Larroza, Andrés; López-Lereu, María P; Monmeneu, José V; Gavara, Jose; Chorro, Francisco J; Bodí, Vicente; Moratal, David

    2018-04-01

    To investigate the ability of texture analysis to differentiate between infarcted nonviable, viable, and remote segments on cardiac cine magnetic resonance imaging (MRI). This retrospective study included 50 patients suffering chronic myocardial infarction. The data were randomly split into training (30 patients) and testing (20 patients) sets. The left ventricular myocardium was segmented according to the 17-segment model in both cine and late gadolinium enhancement (LGE) MRI. Infarcted myocardium regions were identified on LGE in short-axis views. Nonviable segments were identified as those showing LGE ≥ 50%, and viable segments those showing 0 cine images. A support vector machine (SVM) classifier was trained with different combination of texture features to obtain a model that provided optimal classification performance. The best classification on testing set was achieved with local binary patterns features using a 2D + t approach, in which the features are computed by including information of the time dimension available in cine sequences. The best overall area under the receiver operating characteristic curve (AUC) were: 0.849, sensitivity of 92% to detect nonviable segments, 72% to detect viable segments, and 85% to detect remote segments. Nonviable segments can be detected on cine MRI using texture analysis and this may be used as hypothesis for future research aiming to detect the infarcted myocardium by means of a gadolinium-free approach. © 2018 American Association of Physicists in Medicine.

  7. El cine musical clásico en Estados Unidos (1927-1960) y su repercusión en los medios audiovisuales posteriores a este periodo

    OpenAIRE

    Andrés Bailón, Sergio de

    2013-01-01

    [ES] Estudio de los estilos musicales y la funcionalidad de los números musicales en el contexto del cine musical americano del periodo comprendido entre 1927 y 1960, así como la repercusión de dichos elementos estilísticos y estructurales en creaciones Estudio de los estilos musicales y la funcionalidad de los números musicales en el contexto del cine musical americano del periodo comprendido entre 1927 y 1960, así como la repercusión de dichos elementos estilísticos y estructurales en creac...

  8. Rapid reformatting of cine CT data

    International Nuclear Information System (INIS)

    Wyatt, E.D.; Reynolds, R.A.

    1989-01-01

    Cine CT scanners acquire data sufficiently rapidly to freeze the cardiac motion. Display hardware with sufficient highspeed computer memory permits instantaneous reformatting of sections at any orientation. Normal or abnormal cardiac motion may be studies interactively along any axial, sagittal, coronal, or oblique plane through the beating heart. Cine Ct studies, consisting of eight levels through the heart with 8-mm interlevel spacing, acquired at 10 time intervals for a total of 80 sections, were acquired on an Imatron C-100 scanner and displayed. Each entire study was loaded into t = internal display processor memory, permitting instantaneous recall without loss of spatial or density resolution. Results are presented

  9. Cine vasco y euskera: debates de identidad

    OpenAIRE

    Fernández, Joxean

    2013-01-01

    INTRODUCCIÓN: LA ÓSMOSIS HISTORIA-CINE Los físicos suelen hablar de ósmosis para referirse al paso recíproco de dos líquidos de distinta densidad a través de una membrana semipermeable que los separa. Asimismo, en lenguaje literario, hablamos de ósmosis para definir simplemente influencias recíprocas. Nos permitimos utilizar aquí este término prestado de otras disciplinas científicas para tratar de obtener una imagen de las relaciones que el cine y la historia vienen manteniendo desde que aqu...

  10. Cine MR imaging of valvular heart disease

    International Nuclear Information System (INIS)

    Underwood, S.R.; Firmin, D.N.; Mohiaddin, R.H.; Klipstein, R.H.; Bogren, H.G.; Rees, R.S.O.; Longmore, D.B.

    1987-01-01

    Cine MR imaging shows details of cardiac valve motion and the turbulence caused by regurgitation and stenosis. In 30 patients, the area of turbulence proximal to regurgitant valves correlated well with the regurgitant fraction measured from right and left ventricular stroke volumes. Turbulence distal to stenotic valves did not correlate with the pressure gradient because abnormal valves that were not stenosed produced turbulence. Valve motion and the presence of thrombus were easier to assess than in conventional images. Cine MR imaging provides an important addition to conventional imaging in valvular regurgitation, but pressure gradients cannot be assessed in valvular stenosis

  11. El tratamiento de los olvidados en el cine iraní contemporáneo: mujer, infancia y minorías étnicas

    Directory of Open Access Journals (Sweden)

    Zoila Díaz-Maroto Fdez-Checa

    2014-06-01

    Full Text Available El cine iraní, lejos de lo que conocemos como cine euro-norteamericano, se ha ido haciendo un hueco dentro de lo que etiquetamos en occidente como cine periférico. Este cine, aunque desconocido por el público general debido a la escasa repercusión comercial que tiene, se caracteriza principalmente por el trasfondo social que representa y del cual, a su vez, se alimenta. El cine iraní es capaz de esbozar lo que su sociedad simboliza, prestando especial atención a la situación de los individuos más desprotegidos, o lo que es lo mismo, el fiel reflejo de su sociedad: los niños, las mujeres y las minorías culturales. Para ello, y sobre todo para burlar la censura y el control férreo del Estado, los cineastas utilizaron durante décadas a los niños para poder mostrar las difíciles condiciones de vida que sufrían los más desvalidos socialmente. De esta forma, con este artículo pretendemos conocer los cambios que se ha producido en la sociedad iraní a través de las obras de sus principales cineastas, así como los recursos utilizados para criticar la situación de su propio país.

  12. El cine como verdad rev(belada: Ken Loach; una reflexión sobre los años que forjaron el discurso naturalista del cineasta/ Cinema as rev(bealed truth: Ken Loach; a reflection over the years that forged the filmmaker’s naturalist speech

    Directory of Open Access Journals (Sweden)

    Mercedes Miguel Borrás

    2015-07-01

    Full Text Available La sabiduría que se desprende al contemplar el cine de Ken Loach, su depurado estilo naturalista, es fruto de un largo recorrido caracterizado por la coherencia y honestidad. Un cineasta que lleva más de medio siglo dejando huellas de su humanismo, dando voz a los desheredados. ¿De dónde procede su mirada? ¿Cuál es la sustancia expresiva de la que se nutre su discurso? Detenemos nuestra atención en los filmes realizados en la primera etapa de su carrera (1964-1990, pues es cuando se percibe con mayor fuerza el deseo de Loach de penetrar en la realidad con un lenguaje tan riguroso que el pensamiento parece inscribirse en la película, “un cine de confesión, de ensayo”. Una mirada, que se rebela contra un orden y una sociedad injustos, y engendra emociones insospechadas, convocando a la ternura, pero al mismo tiempo hace que nos cuestionemos lo que se nos está contando. Un cine puro, directo, sin concesiones, que reduce al mínimo los recursos. Una verdad a la que se accede de forma natural, una verdad revelada. En el calidoscopio de realidades presentes en un mismo acontecimiento, que el cine (por su naturaleza indicial e icónica es capaz de mostrar, radica esa sustancia expresiva. The Wisdom that emerges when we watch Ken Loach’s films, his refined naturalistic style, is the result of a long journey marked by consistency and honesty. A filmmaker who spend more than half a century leaving traces of their humanism, giving voice to the dispossessed. Where is the origin of the way of his looking? What is the expressive substance that nourishes his speech? We hold our attention on the films made in the first stage of his career (1964-1990, as it is when we perceive the desire of the filmmaker to penetrate in the reality with such a rigorous language that the thinking seems to enroll in the film... a cinema of confession and essay. A look, that always rebels against an order and a inherently and unjust society, and generates unexpected

  13. La censura cinematográfica como factor determinante para el cine histórico durante el franquismo: los casos de Reina Santa (Rafael Gil, 1947) y Alba de América (Juan de Orduña, 1951)

    OpenAIRE

    Sanz Ferreruela, Fernando

    2017-01-01

    Actas del V Congreso Internacional de Historia y Cine celebrado en la Universidad Carlos III de Madrid del 5 al 7 de Septiembre de 2016. El propósito de este trabajo es múltiple, ya que por un lado vamos a intentar arrojar luz al conocimiento de los procesos de producción y censura de dos películas históricas españolas de entre mediados de los años cuarenta y principios de la década siguiente; pero sobre todo, aspiramos a demostrar cómo la censura cinematográfica determinó el deve...

  14. La mujer española y el cine español

    Directory of Open Access Journals (Sweden)

    Dolores Barbazán Capeáns

    2012-08-01

    Full Text Available El cine es un elemento motivador para el aprendizaje de español como lenguaextranjera, así como un recurso didáctico esencial (Romea 2003, Brandimonte 2003.Con el uso del cine en clase de lenguas se les introducen a los estudiantes contenidosculturales, sociales y económicos (Herrero 2008. El objetivo de este trabajo es lapresentación de una unidad didáctica sobre las mujeres españolas y el cine español,dirigida a estudiantes chinos en un contexto de inmersión en Tarragona. Los estudiantestienen un nivel B2 siguiendo el Marco Común Europeo de Referencia: enseñanza,aprendizaje y evaluación (MCER 2002. Se sigue un enfoque comunicativo por tareas.La duración de la unidad didáctica es de aproximadamente cuatro horas y media. Suaplicación en el aula ha resultado enriquecedora y contó con muy buena acogida porparte de los estudiantes.

  15. La mujer española y el cine español

    Directory of Open Access Journals (Sweden)

    Dolores Barbazán Capeáns

    2010-01-01

    Full Text Available El cine es un elemento motivador para el aprendizaje de español como lengua extranjera, así como un recurso didáctico esencial (Romea 2003, Brandimonte 2003.Con el uso del cine en clase de lenguas se les introducen a los estudiantes contenidos culturales, sociales y económicos (Herrero 2008. El objetivo de este trabajo es la presentación de una unidad didáctica sobre las mujeres españolas y el cine español,dirigida a estudiantes chinos en un contexto de inmersión en Tarragona. Los estudiantes tienen un nivel B2 siguiendo el Marco Común Europeo de Referencia: enseñanza,aprendizaje y evaluación (MCER 2002. Se sigue un enfoque comunicativo por tareas.La duración de la unidad didáctica es de aproximadamente cuatro horas y media. Su aplicación en el aula ha resultado enriquecedora y contó con muy buena acogida por parte de los estudiantes.

  16. Hormiga argentina Linepithema humile Mayr, 1868 (Hymenoptera: Formicidae) y su rol como posible vector de contaminación microbiana en una lechería de cabras Capra hircus Linnaeus, 1758 (Artiodactyla: Bovidae)

    OpenAIRE

    J Ipinza-Regla; D González; G Figueroa

    2015-01-01

    Se trata de establecer la acción de la hormiga argentina Linepithema humile, como potencial vector mecánico de microorganismos patógenos. Desde un plantel lechero de cabras ubicado en la comuna de Lampa, Región Metropolitana, Chile, se obtuvieron 63 muestras: 21 muestras Control A aspiradas directamente sobre el papel filtro esterilizado previo al paso de las hormigas, 21 muestras de hormigas aspiradas desde papel filtro y 21 muestras posterior al paso de las hormigas (Control B). La metodolo...

  17. EL LUGAR DEL CINE EN EL PENSAMIENTO FILOSÓFICO DE ALAIN BADIOU

    OpenAIRE

    García Puchades, Wenceslao

    2012-01-01

    La presente tesis pretende estudiar los textos fílmicos del filósofo francés Alain Badiou con el objetivo de sustraer el papel que juega el cine en su proyecto de (re)comienzo de la filosofía. De esta manera hemos dividido su exposición en dos partes: el estudio de su proyecto de (re)comienzo filosófico y el estudio del papel que juega el cine en dicho proyecto y de su teoría fílmica implícita. En la primera parte trataremos de justificar en qué medida su proyecto puede ser entendido como un ...

  18. KOT: El boxeo en el cine mexicano

    OpenAIRE

    Orozco-Martínez, Carlos E.

    1986-01-01

    Texto sobre el género de boxeadores en el cine mexicano. Se habla de la trama de este tipo de filmes, de los personajes comunes, sus orígenes, algunas películas representativas y de los directores que trataron la temática.

  19. DESARTICULACIÓN DE DISCURSOS NACIONALISTAS EN EL CINE DE AUTOR BOLIVIANO: 3B´S Y SOCAVÓNCINE

    Directory of Open Access Journals (Sweden)

    Mariana Lacunza Mendizábal

    2017-12-01

    Full Text Available Distinta a México, Argentina y Brasil, Bolivia tiene una industria cinematográfica poco desarrollada que no ha logrado consolidarse por varias razones. Entre éstas está la falta de apoyo estatal, el escaso desarrollo profesional en estas áreas y una carencia de cultura cinematográfica y visual en general. Sin embargo, durante la última década, la industria cinematográfica boliviana ha sido partícipe de logros importantes gracias a la aparición de las nuevas tecnologías. Películas digitales hechas por una nueva generación de jóvenes directores reconocidos globalmente se han desarrollado en tres ramas distintas: a cine de autor, b cine documental y c cortometrajes. Al mismo tiempo, la producción de este tipo de filmes se apoya en un esfuerzo colectivo, como es el caso de RAV (Rojo, Amarillo y Verde, 2006 de Rodrigo Bellot, Martín Bolulocq y Sergio Bastani y aquellos filmes producidos por el colectivo SocavónCine desde el año 2013. Este artículo busca explorar cómo el más reciente cine boliviano de autor desarticula discursos de identidad nacional al deconstruir oposiciones binarias. Además,  este artículo busca examinar la aplicabilidad del cine de autor y de las prácticas colaborativas en los “cines pequeños” o “small cinemas” al comparar y contrastar ambos grupos a través del análisis de las formas de producción y corrientes estéticas.

  20. Cine MR imaging of internal derangements of the knee

    International Nuclear Information System (INIS)

    Niitsu, M.; Anno, I.; Ishikawa, N.; Akisada, M.; Fukubayashi, T.

    1990-01-01

    This paper assesses internal derangements of the knee joint by a new method of cine MR imaging. Cine MR imaging, involving cine acquisition of kinematic sagittal images during knee movement, was used to evaluate 51 symptomatic patients and 19 healthy subjects. Cine MR images of cruciate ligament fears showed disappearance of low-intensity bundles during knee movement, periodic appearance of joint fluid in the area of the ligament, and irregular tibial movement. Cine MR images of meniscal tears showed independent movement of meniscal fragments and periodic tear opening and closing. Twenty-seven of the 28 anterior cruciate ligament (ACL) tears confirmed arthroscopically were correctly identified with cine MR imaging, with a sensitivity of 96% and a specificity of 92%

  1. How to perform and interpret cine MR enterography.

    Science.gov (United States)

    Wnorowski, Amelia M; Guglielmo, Flavius F; Mitchell, Donald G

    2015-11-01

    Magnetic resonance (MR) enterography has become a fundamental tool for small bowel evaluation. Multiphasic cine imaging is a useful component of MR enterography evaluation because it provides functional information about bowel motility. Cine MR enterography can be used to evaluate for strictures and adhesions. Bowel motility evaluation has been shown to increase pathologic lesion detection in Crohn's disease and has been incorporated into disease activity scoring systems. Currently, cine MR enterography remains underutilized. The purpose of this article is to outline how to perform and interpret cine MR enterography. The authors describe how to perform a multiphasic balanced steady state free precession sequence using different MR systems and give practical advice on how to display and interpret the cine sequence. Sample cases illustrate how the cine sequence complements standard MR enterography evaluation with T2 -weighted, contrast-enhanced T1 -weighted, and diffusion-weighted imaging. © 2015 Wiley Periodicals, Inc.

  2. The Brazilian electric sector regulation as reference for the hydrogen regulation as energetic vector; A regulacao do setor eletrico brasileiro como referencia para regulacao do hidrogenio como vetor energetico

    Energy Technology Data Exchange (ETDEWEB)

    Paternostro, Andre de Goes [Universidade Salvador (UNIFACS), Salvador, BA (Brazil); Fundacao de Amparo a Pesquisa do Estado da Bahia (FAPSB), Salvador, BA (Brazil)]. E-mail: apater@hotmail.com

    2008-07-01

    This paper is based on the Brazilian electric sector to outline parallels for introduction of hydrogen as energetic vector in Brazilian matrix. For this purpose it was achieved an analysis of regulation theory, of electric sector reorganization, the new model of energy trade and the NOS role. In face of this analysis, hydrogen regulation may be established through a mix of four models: tariff model by return tax; tariff by marginal cost; regulation by performance and price cap. This new industrial sector should start vertical and with its maturity become non vertical as electric sector after its reorganization. Regarding the market, advanced purchase of hydrogen should be established enabling the reduction of incertitude in trade as well as reduction of implantation costs. NOS should pursue electric energy generation from hydrogen as this may carry impacts in transmission networks as well as in distribution network depending on how hydrogen was generated, whether in large scale or for local consumption supply. (author)

  3. Reconfiguración de flujos en el circuito internacional de festivales: el programa "Cine en construcción" / Flows Reconfiguration in the International Film Festival Circuit: The Program «Cine en Construcció»

    Directory of Open Access Journals (Sweden)

    Minerva Campos

    2016-08-01

    Full Text Available En el contexto de programas de financiación destinados a determinados cines periféricos y/o minoritarios creados por los festivales de cine y fundaciones asociadas a ellos, este artículo se centra en el programa «Cine en Construcción»: una iniciativa conjunta del Festival Internacional de Cine de San Sebastián y los Rencontres Cinémas d’Amérique Latine de Toulouse creada en 2002 y destinada a la finalización de proyectos latinoamericanos. El artículo se interesa por cómo este tipo de operaciones pueden beneficiar a los festivales de cine impulsores en relación a su visibilidad en el circuito internacional. Al igual que los festivales se articulan en forma de red y tienen un calendario propio a lo largo del año, parece ser que estos fondos de ayuda se están estructurando de la misma forma. De igual manera, la itinerancia posterior en el circuito de festivales, salas comerciales o pantallas alternativas de las películas auspiciadas por estas iniciativas contribuiría a la visibilidad de los festivales impulsores, así como a una definición quizá más precisa del tipo de cine en el que está interesado el evento: ya que en casos como «Cine en Construcción» no solo se financian determinadas películas sino también la mayoría de las veces los festivales de San Sebastián y Toulouse las programan una vez finalizadas (ya sea en las secciones oficiales competitivas o en programas paralelos.Palabras clave: circuito de festivales de cine, fondos de financiación cinematográficos, itinerancia, estrategias de visibilidad, cines periféricos.AbstractIn the context of fund programs created by film festivals and associated foundations to finance some peripheral and/or minority cinemas, this article focuses on the program «Cine en Construcción» (‘Cinema under Construction’: a joint initiative created by San Sebastián International Film Festival and the Rencontres Cinémas d’Amérique Latine de Toulouse in 2002 destined to the

  4. Susumu Hani (1950-1960): la aportación teórico-práctica al documental y al cine juvenil japonés. Una aproximación al caso de Hani como precursor de la nueva ola,

    OpenAIRE

    Centeno Martín, Marcos Pablo

    2015-01-01

    RESUMEN La tesis reúne por primera vez una antología del director japonés Susumu Hani. En ella, se saca a la luz diecisiete de sus documentales realizados en los estudios Iwanami Eiga entre 1950 y 1960 para cine y televisión, en su mayoría desconocidos en Occidente. El análisis de estas obras se acompaña con las lecturas de los ensayos originales escritos por Hani, que se ponen en el contexto de las discusiones teóricas que tuvieron lugar en el Japón de la época. La PARTE 1 trata de ...

  5. Modelos de masculinidad en el cine de la Transición: José Sacristán

    Directory of Open Access Journals (Sweden)

    Natalia Martinez Perez

    2011-09-01

    Full Text Available Este artículo examina la representación de los modelos de masculinidad en el cine español de la Transición como clave para entender los valores asociados a la identidad del hombre español de la época, y por ende el propio periodo histórico, así como las representaciones contemporáneas del varón en el cine español actual. A través del análisis de los personajes interpretados por el actor José Sacristán en películas comprendidas entre 1977 y 1982, observaremos cómo la imagen del hombre español evoluciona debido a los profundos cambios culturales, políticos y sociales producidos en dicho contexto.

  6. Alfonso Reyes y el cine del porvenir

    Directory of Open Access Journals (Sweden)

    Betina Keizman

    2015-07-01

    Full Text Available Este artículo se propone situar la reflexión de Alfonso Reyes sobre el cine en el marco de las recepciones del primer cine, considerando también cómo esta reflexión se articula en relación con el pensamiento crítico del escritor mexicano. En particular, se analiza el modo en que, por vía de la especulación, Reyes ensaya posibles redefiniciones para una nueva distribución de lo sensible y de las artes, de los valores cognitivos y expresivos de la luz y de los vínculos arte-ciencia. Lo que se lee en Reyes es un esfuerzo por pensar nuevas formas de inventiva que se desprenden (o podrían desprenderse del arte cinematográfico.

  7. Friday Programme for CineGlobe 2015

    CERN Multimedia

    Marcelloni De Oliveira, Claudia

    2015-01-01

    Workshops, apero with filmmakers and short-films inspired by science were the menu of the festival through the day. At night the CineGlobe DOME shown with the 360 degree projections shot-films; among them the avant-premiere of "Phantom of the Universe" - a movie that explains Dark Matter, directed by Joao Pequenao. Meanwhile at the Globe, the audience could enjoy the projections of the sequence of " The Invisible Photograph" .

  8. Cine MR imaging in mitral valve prolapse

    International Nuclear Information System (INIS)

    Kumai, Toshihiko

    1993-01-01

    This study was undertaken to assess the ability of cine MR imaging to evaluate the direction, timing, and severity of mitral regurgitation in patients with mitral valve prolapse (MVP). The population of this study was 33 patients with MVP diagnosed by two-dimensional echocardiography and 10 patients with rheumatic mitral valve disease (MSR) for comparison. 7 patients with MVP and 5 with MSR had atrial fibrillation and/or history of congestive heart failure as complications. Mitral regurgitation was graded for severity by color Doppler flow imaging in all patients. Direction and size of systolic flow void in the left atrium were analyzed by contiguous multilevel cine MR images and the maximum volumes of flow void and left atrium were measured. Although flow void was found at the center of the left atrium in most of MSR, it was often directed along the postero-caudal atrial wall in anterior leaflet prolapse and along the anterocranial atrial wall in posterior leaflet prolapse. In MVP, the maximum volume of flow void was often seen in late systole. The maximum volume of flow void and that of left atrium were significantly larger in patients with atrial fibrillation and/or history of congestive heart failure. The length and volume of flow void were increased with clinical severity and degree of regurgitation determined by color Doppler flow imaging. Thus cine MR imaging provides a useful means for detection and semiquantitative evaluation of mitral regurgitation in subjects with MVP. (author)

  9. Cine MR imaging of cerebrospinal fluid flow

    International Nuclear Information System (INIS)

    Kawahara, K.; Yoshikawa, A.; Maeda, M.; Hamachi, J.; Morita, R.; Mishima, T.; Yamada, R.

    1988-01-01

    Cine MR imaging was used to study cerebrospinal fluid (CSF) flow in five patients with various kinds of hydrocephalus, 14 patients with brain atrophy, and 26 healthy subjects. For each study, sagittal and axial sections were obtained. In this study, the authors detected cerebrospinal fluid flow, apparent as high signal intensity, and its direction. They detected the outflow from the foramen of Monro, aqueduct, and foramen of Magendie in sagittal cine images of patients with those with normal-pressure hydrocehalus (NPH), those with brain atrophy, and controls. Especially in patients with NPH, the markedly high signal intensity from CSF flow was observeed in the third and fourth ventricles. In patients with obstructive hydrocephalus, the fourth ventricle tumor, the outflow of CSF was not present. In axial sections, the signal intensity of aqueduct in patients with obstructive hydrocephalus was lower, whereas that in patients with NPH, controls, and those with atrophy was higher than in the midbrain. Cine MR imaging is a very attractive technique in diagnosing hydrocephalus and other abnormal conditions

  10. Cine MRI of patients with cervical myelopathy

    International Nuclear Information System (INIS)

    Ukita, Yasutaka

    1993-01-01

    Forty-six patients with cervical myelopathy were examined before and after surgery by cine magnetic resonance imaging (MRI). According to the occurrence site and degree of flow void, cerebrospinal fluid (CSF) flow void was classified into five: anterior type (flow void mainly in the anterior part of subarachnoid space), posterior type (mainly in the posteiror part), anteroposterior type (in the anterior and posterior parts), incomplete block type (flow void limited to the upper and lower parts of the block), and complete block type (no flow void). None of the 46 patients had normal CSF flow void on cine MRI before surgery. CSF flow void was seen in systolic phase on ECG (from 150 to 300 msec from R's wave) in all patients after spinal cord decompression. Postoperative CBF flow void types correlated well with surgical method, disease, and postoperative vertebral alignment. Postoperative outcome was the most excellent in the group of posterior type and the poorest in the group of anteroposterior type, showing a significant difference between the groups. Cine MRI is a useful noninvasive, dynamic method for assessing postoperative decompression effect. (N.K.)

  11. Cine MR imaging of the cardiovascular system

    International Nuclear Information System (INIS)

    Nishimura, Fumiaki; Yoshino, Yasushi; Mihara, Junji; Ichikawa, Seiichi; Kimura, Masahiko; Yano, Masao; Umeda, Masahiro; Oouchi, Toshihiro

    1990-01-01

    In recent years cine magnetic resonance imaging (MRI) has developed as a high-speed imaging technique that provides a high intensity signal even at a short repetition time (20-30 msec) by using an excited pulse with a small flip angle according to the gradient echo method, enabling about 20 to 30 continuous images of the same section per one cardiac cycle to be taken. On cine display of these continuous images, information concerning blood flow shown by a high intensity signal in comparison with that of the myocardium and vascular wall is obtained with high temporal resolution along with anatomical information. The present study reports the clinical usefulness of cine MRI in today's situation, inculding the following: calculation of the left ventricular ejection fraction and pulmonary-to-systemic flow ratio in congenital shunt disease by integration of the area of multisections through application of Simpson's method; diagnosis of the severity of valvular regurgitation, evaluation of stenosal diseases, and diagnosis of inflow from the fissured entry of dissecting aortic aneurysm by evaluating of an area of low intensity signal, probably based on the high velocity or turbulent blood flow: and evaluation of patency of the internal mammary artery bypass graft of the basis of the possible visualization of even thin blood vessels because of the high intensity signal of blood flow. In particular, the characteristics of this procedures are described by comparing it with other technologies in the field of diseases of valvular regurgitation. (author)

  12. El cine norteamericano durante la Gran Depresión (1929-1939

    Directory of Open Access Journals (Sweden)

    Carmen Mainer

    2013-04-01

    Full Text Available El cine comienza su andadura a finales del siglo XIX como un mero entretenimiento de masas, revelando a un público ávido de novedades las posibilidades del reciente descubrimiento. Será a partir de la Revolución bolchevique de 1917 cuando los organismos de poder descubran la capacidad de la imagen en movimiento como herramienta de propaganda ideológica. Los regímenes comunista y fascista se sirvieron del cine para difundir su doctrina y en la democracia de Estados Unidos, durante el período del New Deal (1933-1939, el cine clásico de Hollywood desempeñará la misma función propagandística, aunque haciendo uso de lenguajes y géneros variados y, con frecuencia, mucho más sofisticados. Es precisamente esta faceta del Séptimo Arte, su uso como agente difusor de ideologías, la que nos interesa y se analiza en el presente artículo.The cinema begins its career in the late nineteenth century as a mere mass entertainment, revealing to an eager audience the possibilities of the new discovery. It was from the Bolshevik Revolution of 1917 when the power of the moving image as ideological propaganda tool was discovered by the governments. The communist and fascist regimes used the cinema to spread their doctrines and in the American democracy, during the New Deal period (1933-1939, the classical Hollywood cinema will perform the same propaganda function, but using different languages ​​and genres, and often much more sophisticated. It is this aspect of the cinema, its use as a carier of ideologies, that interests us and analyze this article.

  13. Intramyocardial strain estimation from cardiac cine MRI.

    Science.gov (United States)

    Elnakib, Ahmed; Beache, Garth M; Gimel'farb, Georgy; El-Baz, Ayman

    2015-08-01

    Functional strain is one of the important clinical indicators for the quantification of heart performance and the early detection of cardiovascular diseases, and functional strain parameters are used to aid therapeutic decisions and follow-up evaluations after cardiac surgery. A comprehensive framework for deriving functional strain parameters at the endocardium, epicardium, and mid-wall of the left ventricle (LV) from conventional cine MRI data was developed and tested. Cine data were collected using short TR-/TE-balanced steady-state free precession acquisitions on a 1.5T Siemens Espree scanner. The LV wall borders are segmented using a level set-based deformable model guided by a stochastic force derived from a second-order Markov-Gibbs random field model that accounts for the object shape and appearance features. Then, the mid-wall of the segmented LV is determined based on estimating the centerline between the endocardium and epicardium of the LV. Finally, a geometrical Laplace-based method is proposed to track corresponding points on successive myocardial contours throughout the cardiac cycle in order to characterize the strain evolutions. The method was tested using simulated phantom images with predefined point locations of the LV wall throughout the cardiac cycle. The method was tested on 30 in vivo datasets to evaluate the feasibility of the proposed framework to index functional strain parameters. The cine MRI-based model agreed with the ground truth for functional metrics to within 0.30 % for indexing the peak systolic strain change and 0.29 % (per unit time) for indexing systolic and diastolic strain rates. The method was feasible for in vivo extraction of functional strain parameters. Strain indexes of the endocardium, mid-wall, and epicardium can be derived from routine cine images using automated techniques, thereby improving the utility of cine MRI data for characterization of myocardial function. Unlike traditional texture-based tracking, the

  14. Teatro-cine Eileen Norris - California (EE.UU.

    Directory of Open Access Journals (Sweden)

    Martin, Albert C.

    1978-10-01

    Full Text Available This building forms a part of the substructure of the Department of the Cinema of the University of Southern California. Among its various functions, it includes the practical teaching of cinematography. It consists of a ground floor for accesses and auditorium, with a surface measuring 1,950 m2, and a basement of the same extension, designed for a film library and film deposit. The auditorium has a capacity for 350 spectators and is equipped with a screen adaptable to the projection of 16, 35 and 70 mm films, as well as equipment for the projection of slides and video tapes. It can also be conditioned as a lecture hall, for which purpose, complete sets of equipment fort simultaneous translation have been installed. On the outside, the architecture presents a neoclassical design, based on a portico of four large white cement columns, which combines with Marble exteriors on the walls.

    Este edificio forma parte de la infraestructura del Departamento de Cine de la Universidad de California del Sur. Entre sus diversas funciones comprende la enseñanza práctica de la cinematografía. Consta de una planta baja destinada a accesos y auditorio, de 1.950 m2 de superficie, y un sótano, de la misma extensión, destinado a biblioteca de cine y a depósito de películas. El auditorio tiene capacidad para 350 espectadores y cuenta con una pantalla adaptable a la proyección de films de 16, 35 y 70 mm, así como con equipos para la proyección de diapositivas y cintas de video-tapes. Puede acondicionarse, igualmente, como sala de conferencias, para lo cual se han instalado unos completos equipos de traducción simultánea. Exteriormente, la arquitectura presenta un diseño neoclásico, basado en un pórtico de cuatro grandes columnas de cemento blanco que combina con revestimientos de mármol y en los paramentos verticales.

  15. El cine de terror español

    OpenAIRE

    Gómez Llorente, Tatiana

    2015-01-01

    La autora comienza haciendo un estudio del cine de terror desde sus inicios, sus subgéneros, mecanimos utilizados para provocar el miedo en el espectador para finalmente centrarse en el cine de terror español a través de cinco películas representativas del género.

  16. Automatic segmentation and disease classification using cardiac cine MR images

    NARCIS (Netherlands)

    Wolterink, Jelmer M.; Leiner, Tim; Viergever, Max A.; Išgum, Ivana

    2018-01-01

    Segmentation of the heart in cardiac cine MR is clinically used to quantify cardiac function. We propose a fully automatic method for segmentation and disease classification using cardiac cine MR images. A convolutional neural network (CNN) was designed to simultaneously segment the left ventricle

  17. El cine, ¿puede hacernos peores?. Stanley Cavell y el perfeccionismo moral

    Directory of Open Access Journals (Sweden)

    Francisco Javier Ruiz Moscardó

    2016-01-01

    Full Text Available El filósofo norteamericano S. Cavell ha estudiado los vínculos entre el cine clásico hollywoodense y el perfeccionismo moral emersoniano. Se ofrece una exposición tanto de los presupuestos que este pensador asume en su análisis del fenómeno cinematográfico como del perfeccionismo moral que reivindica, encuadrándolos en el contexto teórico que les da sentido y sugiriendo algunas vías de crítica.

  18. El cine, ¿puede hacernos peores?. Stanley Cavell y el perfeccionismo moral

    OpenAIRE

    Francisco Javier Ruiz Moscardó

    2016-01-01

    El filósofo norteamericano S. Cavell ha estudiado los vínculos entre el cine clásico hollywoodense y el perfeccionismo moral emersoniano. Se ofrece una exposición tanto de los presupuestos que este pensador asume en su análisis del fenómeno cinematográfico como del perfeccionismo moral que reivindica, encuadrándolos en el contexto teórico que les da sentido y sugiriendo algunas vías de crítica.

  19. Fundamentos para un estudio del guion en el cine chileno: notas preliminares

    OpenAIRE

    Rubén Dittus Benavente

    2015-01-01

    El artículo presenta el marco teórico para estudiar los modelos de guion en el cine chileno de ficción. La literatura publicada y el creciente interés en la formación de guionistas en la industria audiovisual, tanto en Chile como en el extranjero, dan cuenta de la necesidad de abordar los principios dramatúrgicos y los estándares profesionales desde una mirada integradora, que supere los clásicos modelos de escritura creativa. Más allá de las divergencias o acuerdos de dichas teorías, el guio...

  20. A four-dimensional motion field atlas of the tongue from tagged and cine magnetic resonance imaging

    Science.gov (United States)

    Xing, Fangxu; Prince, Jerry L.; Stone, Maureen; Wedeen, Van J.; El Fakhri, Georges; Woo, Jonghye

    2017-02-01

    Representation of human tongue motion using three-dimensional vector fields over time can be used to better understand tongue function during speech, swallowing, and other lingual behaviors. To characterize the inter-subject variability of the tongue's shape and motion of a population carrying out one of these functions it is desirable to build a statistical model of the four-dimensional (4D) tongue. In this paper, we propose a method to construct a spatio-temporal atlas of tongue motion using magnetic resonance (MR) images acquired from fourteen healthy human subjects. First, cine MR images revealing the anatomical features of the tongue are used to construct a 4D intensity image atlas. Second, tagged MR images acquired to capture internal motion are used to compute a dense motion field at each time frame using a phase-based motion tracking method. Third, motion fields from each subject are pulled back to the cine atlas space using the deformation fields computed during the cine atlas construction. Finally, a spatio-temporal motion field atlas is created to show a sequence of mean motion fields and their inter-subject variation. The quality of the atlas was evaluated by deforming cine images in the atlas space. Comparison between deformed and original cine images showed high correspondence. The proposed method provides a quantitative representation to observe the commonality and variability of the tongue motion field for the first time, and shows potential in evaluation of common properties such as strains and other tensors based on motion fields.

  1. El Cine moral y la censura, un medio empleado por la Acción Católica Colombiana 1934 – 1942

    OpenAIRE

    Sergio Armando Cáceres Mateus

    2011-01-01

    Desde que el cine irrumpió en el mundo en 1891, la Iglesia Católica puso atención a la presencia del invento y las consecuencias que tendría para la sociedad. Después, arremetió contra el cine inmoral, por medio de la creación de “santas cruzadas” lideradas por miembros de la Acción Católica, que tenían como objetivos: la producción de cine moral a nivel Internacional a través de empresas Cinematográficas en Europa; y consolidar un mecanismo de censura que se implementó con la Legió...

  2. Evaluation of potential internal target volume of liver tumors using cine-MRI.

    Science.gov (United States)

    Akino, Yuichi; Oh, Ryoong-Jin; Masai, Norihisa; Shiomi, Hiroya; Inoue, Toshihiko

    2014-11-01

    Four-dimensional computed tomography (4DCT) is widely used for evaluating moving tumors, including lung and liver cancers. For patients with unstable respiration, however, the 4DCT may not visualize tumor motion properly. High-speed magnetic resonance imaging (MRI) sequences (cine-MRI) permit direct visualization of respiratory motion of liver tumors without considering radiation dose exposure to patients. Here, the authors demonstrated a technique for evaluating internal target volume (ITV) with consideration of respiratory variation using cine-MRI. The authors retrospectively evaluated six patients who received stereotactic body radiotherapy (SBRT) to hepatocellular carcinoma. Before acquiring planning CT, sagittal and coronal cine-MRI images were acquired for 30 s with a frame rate of 2 frames/s. The patient immobilization was conducted under the same condition as SBRT. Planning CT images were then acquired within 15 min from cine-MRI image acquisitions, followed by a 4DCT scan. To calculate tumor motion, the motion vectors between two continuous frames of cine-MRI images were calculated for each frame using the pyramidal Lucas-Kanade method. The target contour was delineated on one frame, and each vertex of the contour was shifted and copied onto the following frame using neighboring motion vectors. 3D trajectory data were generated with the centroid of the contours on sagittal and coronal images. To evaluate the accuracy of the tracking method, the motion of clearly visible blood vessel was analyzed with the motion tracking and manual detection techniques. The target volume delineated on the 50% (end-exhale) phase of 4DCT was translated with the trajectory data, and the distribution of the occupancy probability of target volume was calculated as potential ITV (ITV Potential). The concordance between ITV Potential and ITV estimated with 4DCT (ITV 4DCT) was evaluated using the Dice's similarity coefficient (DSC). The distance between blood vessel positions

  3. Evaluation of potential internal target volume of liver tumors using cine-MRI

    Energy Technology Data Exchange (ETDEWEB)

    Akino, Yuichi, E-mail: akino@radonc.med.osaka-u.ac.jp [Department of Radiation Oncology, Osaka University Graduate School of Medicine, Suita, Osaka 5650871, Japan and Miyakojima IGRT Clinic, Miyakojima-ku, Osaka 5340021 (Japan); Oh, Ryoong-Jin; Masai, Norihisa; Shiomi, Hiroya; Inoue, Toshihiko [Miyakojima IGRT Clinic, Miyakojima-ku, Osaka 5340021 (Japan)

    2014-11-01

    Purpose: Four-dimensional computed tomography (4DCT) is widely used for evaluating moving tumors, including lung and liver cancers. For patients with unstable respiration, however, the 4DCT may not visualize tumor motion properly. High-speed magnetic resonance imaging (MRI) sequences (cine-MRI) permit direct visualization of respiratory motion of liver tumors without considering radiation dose exposure to patients. Here, the authors demonstrated a technique for evaluating internal target volume (ITV) with consideration of respiratory variation using cine-MRI. Methods: The authors retrospectively evaluated six patients who received stereotactic body radiotherapy (SBRT) to hepatocellular carcinoma. Before acquiring planning CT, sagittal and coronal cine-MRI images were acquired for 30 s with a frame rate of 2 frames/s. The patient immobilization was conducted under the same condition as SBRT. Planning CT images were then acquired within 15 min from cine-MRI image acquisitions, followed by a 4DCT scan. To calculate tumor motion, the motion vectors between two continuous frames of cine-MRI images were calculated for each frame using the pyramidal Lucas–Kanade method. The target contour was delineated on one frame, and each vertex of the contour was shifted and copied onto the following frame using neighboring motion vectors. 3D trajectory data were generated with the centroid of the contours on sagittal and coronal images. To evaluate the accuracy of the tracking method, the motion of clearly visible blood vessel was analyzed with the motion tracking and manual detection techniques. The target volume delineated on the 50% (end-exhale) phase of 4DCT was translated with the trajectory data, and the distribution of the occupancy probability of target volume was calculated as potential ITV (ITV {sub Potential}). The concordance between ITV {sub Potential} and ITV estimated with 4DCT (ITV {sub 4DCT}) was evaluated using the Dice’s similarity coefficient (DSC). Results

  4. Erotismo, pornografía y cine

    Directory of Open Access Journals (Sweden)

    José Rojas Bez

    2015-01-01

    Full Text Available ¿Qué es el erotismo? ¿Qué es la pornografía? ¿En qué medida influyen sobre el espectador? Cómo responder educativamente ante las diversas manifestaciones suyas en el cine y los demás medios artísticos? El autor reflexiona sobre estas cuestiones esenciales, distingue ambos conceptos y propone respuestas desprejuiciadas, no preconcebidas, sino fundamentales, desde puntos de vista educativos, estéticos y críticos.

  5. La Guerra Civil estadounidense vista por el cine

    Directory of Open Access Journals (Sweden)

    José María Caparrós-Lera

    2009-01-01

    Full Text Available El cine histórico es uno de los géneros más populares de Hollywood. Pero pocos hechos han sido tan prolífi cos en la gran pantalla como la Guerra Civil estadounidense (1861-1865, que estuvo a punto de provocar una Secesión en el aún joven país. Este artículo es una aproximación al tema, más cuantitativa que de análisis concreto, aunque se hace una valoración estética y contextual de las principales películas: The Birth of a Nation (1915, Gone with the Wind (1939, Glory (1989 y Gett ysburg (1993. Cuatro fi lmes paradigmáticos de un conflicto bélico que dividió a los Estados Unidos de América de forma sólo comparable a la producida en la opinión pública con motivo de la Guerra de Vietnam.

  6. Del dios cine y otros héroes. El mito griego a 24 fotografías por segundo

    OpenAIRE

    Míguez Santa Cruz, Antonio; Cañas Pelayo, Marcos Rafael

    2012-01-01

    Los autores presentan en este artículo una revisión de la Mitología Clásica a través del cine. Para ello se hace además un estudio crítico de las fuentes históricas disponibles y otras artes, como, por ejemplo, teatro y literatura. Como conclusión, se analiza el papel y la evolución de los héroes más célebres de la Antigüedad y sus modificaciones hasta nuestros días.

  7. Cine y mitología de los orígenes en el nacionalismo norteamericano: el último mohicano

    OpenAIRE

    Rafael MENÉNDEZ FERNÁNDEZ

    2014-01-01

    Cine y nacionalismo presentan una interesante y continuada relación, sobre todo a través de géneros como el épico, histórico o de aventuras. Se estudia en el presente trabajo esta relación, a partir del film “El último mohicano”, dirigido por Michael Mann en 1992, que presenta elementos clave para entender la importancia de la conformación de los mitos sobre los orígenes de la nación norteamericana. El film, como la conocida novela en que se inspira libremente, centra su trama en aspectos y é...

  8. Cine CT in the evaluation of coronary bypass graft patency

    International Nuclear Information System (INIS)

    Stanford, W.; Rooholamini, M.; Rumberger, J.; Marcus, M.; Hiratzka, L.

    1986-01-01

    Cine CT produces axial images over an 8-cm section of the aorta in 50 msec. This characteristic makes the technique useful for evaluating coronary bypass graft (CBG) patency. With the use of 40 ml of 67% iothalamate sodium injected via an antecubital vein, 28 patients with 68 CBGs underwent cine CT. Ten patients with 21 CBGs also underwent cardiac catheterization. In the latter group the overall accuracy of cine CT compared to cardiac catheterization was 95.2% (20/21). The sensitivity was 94.1% (16/17), and the specificity was 100% (4/4). This figure compares favorably with the 92% sensitivity achieved with conventional CT

  9. Validation of regional myocardial perfusion with cine CT

    International Nuclear Information System (INIS)

    Gould, R.G.; McNamara, T.; Koshold, S.; Lipton, M.; Sievers, R.; Higgins, C.B.; Boyd, D.

    1986-01-01

    Blood flow within each of eight quadrants of the myocardium was measured in dogs using a cine-CT scanner and also with microspheres. Cine-CT flow measurements were made using a nonionic contrast agent and flow was calculated by a formula that used both the maximum iodine concentration and the peak delay time. Measurements were obtained at rest and during hyperperfusion induced by chromonar. Simultaneous cine-CT and microsphere measurements correlated (slope = 0.71 r = .8) over a range of 0.4-7.0 ml/min/g

  10. Application of cine MRI-tagging method to aortic dessection

    International Nuclear Information System (INIS)

    Yoshioka, Kunihiro; Takahashi, Tsuneo; Kamata, Hiroyuki; Kikuchi, Kenichi; Yamaguchi, Kojiro.

    1992-01-01

    For the evaluation of aortic dissection, ECG-gated SE or cine MR imaging has been usually performed. However, detection of slow flow in the false lumen and differentiation between mural thrombus and slow flow are sometimes difficult. Because paradoxical enhancement due to slow blood flow simulates thrombus. We performed cine MR imaging with persaturation tagging, which clearly showed differentiation between thrombus and paradoxical enhancement. We concluded that cine MR imaging with tagging method was useful to evaluate the slow flow and thrombus in the false lumen. (author)

  11. El cine en el cine: Los abrazos rotos (Pedro Almodóvar, 2009

    Directory of Open Access Journals (Sweden)

    Pedro Poyato

    2012-10-01

    Full Text Available El cine en el cine, tema recurrente en la filmografía de Pedro Almodóvar, protagoniza también Los abrazos rotos, película que contiene en su interior otra titulada Chicas y maletas. Pero las imágenes de esta segunda película, trasunto de otra anterior del propio Almodóvar, Mujeres al borde un ataque de nervios, coexisten con las de un documental sobre su rodaje. El resultado es una proliferación de imágenes segundas que, incorporadas según una estructura en abismo, el filme va a conjugar de múltiples y variadas maneras. El presente trabajo trata de dar cuenta de la génesis, funcionamiento y declinación de estas imágenes segundas y de los sentidos que de ello emanan.

  12. Fundamental Tongue Motions for Trumpet Playing: A Study Using Cine Magnetic Resonance Imaging (Cine MRI).

    Science.gov (United States)

    Furuhashi, Hiroko; Chikui, Toru; Inadomi, Daisuke; Shiraishi, Tomoko; Yoshiura, Kazunori

    2017-12-01

    Though the motions of structures outside the mouth in trumpet performance have been reported, the dynamics of intraoral structures remain unelucidated. This study explored the tongue's movement in trumpet playing using cine magnetic resonance imaging (cine MRI) and demonstrated the effects of intraoral anatomical structures on changes in pitch and dynamics. Cine MRI was applied to 18 trumpet players, who were divided into two groups (7 beginner, 11 advanced) based on their ability to play a certain high note. They were instructed to play a custom-made MRI-compatible simulated trumpet. Pitch-change tasks and dynamics-change tasks were assigned. The positions of the anatomical points and intraoral areas were identified on outlined images, and the changes associated with each task were evaluated. A forward and upward projection of the tongue was observed in the production of higher pitches, and there were no significant differences in all areas. In louder dynamics, a backward and downward bending of the tongue occurred, the tongue area became smaller (pcine MRI that certain tongue movements were associated with each task. Tongue protrusion in the production of higher pitch and bending in louder dynamics can be rationalized using acoustics theory and the movements of anatomical structures. These findings seem to be consistent regardless of the player's proficiency.

  13. Cine y arquetipos en la didáctica de E/LE

    Directory of Open Access Journals (Sweden)

    María Pilar Guitart Escudero

    2011-01-01

    Full Text Available Conocer una lengua necesariamente implica también conocer la cultura en la que esa lengua se produce. En otras palabras, la competencia lingüística está plenamente garantizada cuando se alcanza cierto grado de competencia cultural. Tal y como establecimos en una experiencia práctica anterior sobre cine, trabajar con muestras de conversación real es apostar por el éxito pedagógico ya que dicho material nos permite acceder a elementos contextualizados, verbales y no verbales que, en definitiva, son los que van a asegurar la plena adecuación comunicativa (Guitart, 2007. Es, en este sentido, en el que volvemos a confirmar que la adecuación lingüística solo es posible cuando el aprendizaje parte de la explotación de materiales con un alto componente cultural, como el que nos vuelve a ofrecer la gran pantalla.

  14. Mujeres en el cine del primer peronismo: entre el melodrama y la propaganda

    Directory of Open Access Journals (Sweden)

    Clara Beatriz Kriger

    2016-08-01

    Full Text Available El texto se propone estudiar las representaciones de la mujer en las películas de propaganda estatal durante el peronismo clásico. Estos documentales permanecen ocultos en la historiografía del género, entonces el objetivo no se reduce a ponerlos en valor sino también a revelarlos como antecedentes del cine político posterior. El análisis teje un entramado con los personajes femeninos de los melodramas prestigiosos del período, y la trama que resulta de esta articulación evidencia una distribución de personajes para el documental y la ficción, teniendo en cuenta los signos que caracterizan la vida pública y privada. Estas articulaciones entre representaciones vinculadas al mundo real y al ficcional aluden tanto a las transformaciones en la arena social, como a las sumisiones al orden familiar dominante.

  15. Cine-CT measurement of cortical renal blood flow

    International Nuclear Information System (INIS)

    Jaschke, W.R.; Gould, R.G.; Cogan, M.G.; Sievers, R.; Lipton, M.J.

    1987-01-01

    A modified indicator-dilution technique using radiographic contrast material and a cine-CT scanner was used to measure blood flow in the renal cortex of dogs. To validate this technique, CT measurements were correlated with simultaneous measurements of flow determined by radioactive microspheres. Measurements were taken during euvolemic conditions and after hemorrhage. Thirty-nine measurements were compared, covering a flow range from 1 to 7 ml min-1 g-1, and a good correlation was found between the cine-CT and microsphere results (r = 0.93; p less than 0.001). Additionally, cine-CT measurements were made of the mean transit time (MTT) of contrast material through the renal cortex, and the reciprocal of these MTT values was also well correlated to microsphere determined flow (r = 0.94; p less than 0.001). Thus, cine-CT appears to be a promising new technique for measuring renal blood flow

  16. Evaluation of aortic regurgitation using cine magnetic resonance imaging

    International Nuclear Information System (INIS)

    Tamai, Takuya; Konishi, Tokuji; Okamoto, Shinya; Sakuma, Hajime; Takeda, Kan; Nakano, Takeshi

    1993-01-01

    Cine magnetic resonance imaging (MRI) was used to assess aortic regurgitation (AR) in 13 patients with valvular disease and 3 normal subjects, and the results were compared to color Doppler flow mapping findings. AR produced a signal void in the left ventricle during the diastolic phase in all patients by MRI. There were no false positive or negative results compared with echocardiographic findings. Visual grading of cine MRI gave results similar to color flow Doppler echocardiography (88%). The distance and the area of aortic regurgitation using MRI correlated well with color Doppler flow mapping (r=0.82 and 0.88). However, measurements of distance and area by color flow Doppler tended to be larger than those by cine MRI. With current techniques echocardiography may overestimate the severity of AR as compared with cine MRI. In addition, MRI gives clinically useful information in patients in whom transthoracic Doppler echocardiography is not adequate. (author)

  17. Automated Motion Estimation for 2D Cine DENSE MRI

    Science.gov (United States)

    Gilliam, Andrew D.; Epstein, Frederick H.

    2013-01-01

    Cine displacement encoding with stimulated echoes (DENSE) is a magnetic resonance (MR) method that directly encodes tissue displacement into MR phase images. This technique has successfully interrogated many forms of tissue motion, but is most commonly used to evaluate cardiac mechanics. Currently, motion analysis from cine DENSE images requires manually delineated anatomical structures. An automated analysis would improve measurement throughput, simplify data interpretation, and potentially access important physiological information during the MR exam. In this article, we present the first fully automated solution for the estimation of tissue motion and strain from 2D cine DENSE data. Results using both simulated and human cardiac cine DENSE data indicate good agreement between the automated algorithm and the standard semi-manual analysis method. PMID:22575669

  18. Nacionalismo y globalización en el cine indio contemporáneo: la cuestión del desarrollo como seña de identidad / Nationalism and Globalization in Contemporary Indian Cinema: the Development Motif as an Identity Marker

    Directory of Open Access Journals (Sweden)

    Dipankar Gupta

    2016-08-01

    Full Text Available La componente nacionalista del cine indio ha estado siempre a la orden del día y sigue estándolo en la actualidad, ya sea en el marco de películas bélicas, anticolonialistas o, simplemente, que apelan de manera enfática a la vigencia y pervivencia de la cultura, la tradición y los valores indios en un mundo crecientemente globalizado. En los últimos años, sin embargo, muchas de estas películas han pasado relativamente desapercibidas mientras que otras, que exploran de forma consistente la asociación entre nacionalismo y desarrollismo, subrayando el enorme potencial de la India contemporánea en un cambiante contexto internacional, han cosechado grandes éxitos y se han convertido incluso en una suerte de subgénero de la producción comercial de Bollywood. Este nacionalismo de nuevo cuño, de corte abiertamente desarrollista, refleja en realidad los profundos cambios que se están produciendo actualmente en la sociedad india y está en consonancia con las grandes transformaciones a que está sometido también el mercado cinematográfico indio, cada vez más estratificado y dependiente para sus rendimientos de sectores acomodados y aun diaspóricos del público.Palabras clave: Bollywood, nacionalismo, desarrollismo, orientalismo, público.AbstractThe nationalist factor has been a constant presence in Indian cinema and continues to be so to this day, be it in war films, anticolonial movies or simply in those films that stress the validity and permanence of the Indian values, culture and traditions in an increasingly globalized world. In the last few years, however, many of these movies have gone relatively unnoticed while others that explore the links between nationalism and development, underlying the enormous potential of contemporary India in an ever changing international context, have resulted in big hits and have become a sort of subgenre in the commercial production of Bollywood. This new brand of nationalism

  19. Control of an X-ray cine radiography apparatus

    International Nuclear Information System (INIS)

    Nishio, K.

    1982-01-01

    This patent application describes an X-ray cine radiography apparatus comprising an X-ray tube, an image intensifier for converting the X-rays transmitted through an object into a visual image and a cine camera for picking up the visual image, a photomultiplier detects the brightness of the visual image to produce a brightness signal and a potentiometer detects the actual tube voltage of said X-ray tube. (author)

  20. Technical Note: Measurement of common carotid artery lumen dynamics using black-blood MR cine imaging.

    Science.gov (United States)

    Dai, Erpeng; Dong, Li; Zhang, Zhe; Li, Lyu; Zhang, Hui; Zhao, Xihai; Wang, Jinnan; Yuan, Chun; Guo, Hua

    2017-03-01

    To demonstrate the feasibility of measuring the common carotid artery (CCA) lumen dynamics using a black-blood cine (BB-cine) imaging method. Motion-sensitized driven-equilibrium (MSDE) prepared spoiled gradient sequence was used for the BB-cine imaging. CCAs of eleven healthy volunteers were studied using this method. Lumen dynamics, including lumen area evolution waveforms and distension values, were measured and evaluated by comparing this method with bright-blood cine (BrB-cine) imaging. Compared with the BrB-cine images, flow artifacts were effectively suppressed in the BB-cine images. BrB-cine images generally show larger lumen areas than BB-cine images. The lumen area waveforms and distension measurements from BB-cine imaging showed smaller variances among different subjects than BrB-cine imaging. The proposed BB-cine imaging technique can suppress the flow artifacts effectively and reduce the partial volume effects from the vessel wall. This might allow more accurate lumen dynamics measurements than traditional BrB-cine imaging, which may further be valuable for investigating biomechanical and functional properties of the cardiovascular system. © 2017 American Association of Physicists in Medicine.

  1. CINE DE TERROR Y BIOLOGÍA

    Directory of Open Access Journals (Sweden)

    John Richard Jiménez Peñuela

    2014-05-01

    Full Text Available En esta presentación, se abordan los resultados del “Proyecto Transversal Ciencia Gráfica”, relacionados con la proyección de cine de terror, a educandos de ciclo III. Además de las proyecciones, el proyecto desarrollo la habilidad gráfica de los estudiantes en relación con la biología y el arte, a partir de lecciones sobre dibujo biológico, y la fabricación de juguetes con motivos biológicos por parte de los estudiantes. De esta manera, se emprenden acciones conjuntas desde arte y biología para la comprensión de los temas vistos en el área de ciencias naturales, aplicando los conocimientos de ambos campos en la comprensión estética de la relación humano-naturaleza.

  2. Differentiation between acute and chronic myocardial infarction by means of texture analysis of late gadolinium enhancement and cine cardiac magnetic resonance imaging.

    Science.gov (United States)

    Larroza, Andrés; Materka, Andrzej; López-Lereu, María P; Monmeneu, José V; Bodí, Vicente; Moratal, David

    2017-07-01

    The purpose of this study was to differentiate acute from chronic myocardial infarction using machine learning techniques and texture features extracted from cardiac magnetic resonance imaging (MRI). The study group comprised 22 cases with acute myocardial infarction (AMI) and 22 cases with chronic myocardial infarction (CMI). Cine and late gadolinium enhancement (LGE) MRI were analyzed independently to differentiate AMI from CMI. A total of 279 texture features were extracted from predefined regions of interest (ROIs): the infarcted area on LGE MRI, and the entire myocardium on cine MRI. Classification performance was evaluated by a nested cross-validation approach combining a feature selection technique with three predictive models: random forest, support vector machine (SVM) with Gaussian Kernel, and SVM with polynomial kernel. The polynomial SVM yielded the best classification performance. Receiver operating characteristic curves provided area-under-the-curve (AUC) (mean±standard deviation) of 0.86±0.06 on LGE MRI using 72 features; AMI sensitivity=0.81±0.08 and specificity=0.84±0.09. On cine MRI, AUC=0.82±0.06 using 75 features; AMI sensitivity=0.79±0.10 and specificity=0.80±0.10. We concluded that texture analysis can be used for differentiation of AMI from CMI on cardiac LGE MRI, and also on standard cine sequences in which the infarction is visually imperceptible in most cases. Copyright © 2017 Elsevier B.V. All rights reserved.

  3. Film and Literature: A History of Sibling Rivalry (El cine y la literatura. Una historia de rivalidad entre hermanos

    Directory of Open Access Journals (Sweden)

    Joe Montenegro Bonilla

    2015-11-01

    Full Text Available El análisis organiza algunas ideas que durante el siglo xx se desarrollaron en torno a la relación entre la literatura y el cine como artes narrativas. Desde una perspectiva histórica, se expone cómo estas disciplinas se han enfrentado y han aprendido a coexistir bajo la cobertura de la semántica como reguladora de los procesos de significación que tanto el cine como la literatura estimulan. Además, se explican las diferencias entre ambas formas artísticas, como «materias de expresión», señalando los puntos de conexión que existen entre ellas para potenciar su análisis comparativo. This analysis addresses ideas which, during the last century, developed around the relationship between literature and film as narrative arts. From a historical perspective, a description is provided about how these disciplines have confronted one another and how they have learned to coexist under the cloak of semantics as a regulator of the signification processes that both cinema and literature stimulate. Moreover, the article discusses the differences between these two art forms, particularly regarding “matters of expression,” highlighting the points of connection between the two in order to potentiate their comparative analysis.

  4. La narrativa en la representación de los sueños en el cine de ficción: estudio diacrónico

    OpenAIRE

    Borrego Martín, José Carlos

    2015-01-01

    Las posibilidades creativas de la representación del ensueño en el medio cinematográfico resultan extensas, mediante el empleo y combinación de múltiples elementos relativos tanto al plano del contenido como al plano de la expresión, según la división del relato fílmico propuesta por la narratología. El presente trabajo de investigación trata sobre las diferentes modalidades de representaciones oníricas en el cine de ficción, así como de su evolución a lo largo de la historia del cine desde s...

  5. Cine MRI of Tracheal Dynamics in Healthy Volunteers and Patients With Tracheobronchomalacia.

    Science.gov (United States)

    Ciet, Pierluigi; Boiselle, Phillip M; Heidinger, Benedikt; Andrinopoulou, Eleni-Rosalina; O'Donnel, Carl; Alsop, David C; Litmanovich, Diana E

    2017-10-01

    Bronchoscopy and MDCT are routinely used to assess tracheobronchomalacia (TBM). Recently, dynamic MRI (cine MRI) has been proposed as a radiation-free alternative to MDCT. In this study, we tested cine MRI assessment of airway dynamics during various breathing conditions and compared cine MRI and MDCT measurements in healthy volunteers and patients with suspected TBM. Cine MRI was found to be a technically feasible alternative to MDCT for assessing central airway dynamics.

  6. De «gira» por los festivales: patrones migratorios del cine lationoamericano / Touring the Film Festival Circuit: Migrating Patterns of Latin American Cinema

    Directory of Open Access Journals (Sweden)

    Laura Rodríguez Isaza

    2016-08-01

    Full Text Available En las últimas dos décadas, los investigadores han considerado los festivales de cine como centros clave para el desarrollo de la cultura cinematográfica contemporánea. Más allá de su función como simples lugares de celebración cultural o espacios neutrales de exhibición cinematográfica, estos operan en un mundo altamente competitivo y jerarquizado. En realidad, el circuito de los festivales de cine funciona de acuerdo a reglas y dinámicas, generalmente desconocidas para los no iniciados, que regulan el tráfico cinematográfico internacional y a la vez mantienen las relaciones jerárquicas entre festivales, en un escenario dominado por unos pocos mega-eventos en Europa y Norteamérica. Tomando como casos de estudio las películas Estación central (Central do Brasil, Walter Salles, 1998 y Tierra extranjera (Terra estrangeira, Walter Salles y Daniela Thomas, 1995, este artículo indaga sobre las consecuencias dela estructura jerarquizada de los festivales de cine en el proceso de internacionalización del cine latinoamericano en los años 90. La mayor parte de las películas con vocación comercial internacional ajenas a Hollywood se estrenan en festivales de cine antes de llegar a las pantallas comerciales, por lo que no solo están sujetas a los filtros que establecen los festivales a la hora de ser incluidas en su programación, sino también a las jerarquías que rigen la circulación de películas entre los festivales de cine. La «gira» por los festivales se ha convertido en una estrategia estandarizada del marketing internacional de películas que utiliza las lógicas y dinámicas del circuito de festivales para elevar el estatus artístico y cultural de productos cinematográficos dirigidos al mercado internacional.Palabras clave: festivales de cine, industria cinematográfica, distribución internacional, marketing de cine, circuito de festivales, descuento cultural, paratextos, cine latinoamericano, cine del mundo

  7. Cine, literatura y mito: Don Quijote en el cine, más allá de la adaptación

    Directory of Open Access Journals (Sweden)

    Pardo García, Pedro Javier

    2011-04-01

    Full Text Available This paper discusses Don Quixote’s presence in film, but in terms of the myth rather than the book, an approach which goes beyond adaptation and opens up the field of study in a significant way. In so doing it proposes a tentative but coherent description of the quixotic myth or narrative pattern as that of the inadequate and romantic imitator/reader of fiction, which is the point of departure for the elaboration of an initial corpus of quixotic movies. The protagonists of these films are frustrated imitators of cinematographic models, female Quixotes who romanticize reality and heroes who are Quixotic because they are not fit for the heroic task they have undertaken. In order to illustrate this deep penetration of the myth into the cinematic medium, a recent example in Spanish cinema will be examined, The Heart of the Warrior (El corazón del guerrero, 2000, a film directed by Daniel Monzón, where these several varieties are at work in a combined and crystal clear way. Our survey will allow us to make a series of distinctions which organise and structure the different kinds of relationship between Don Quixote and film (Cervantean, quixotic and quixotish film and, finally, to draw a series of theoretical conclusions which can be applied to the comparative study of film and literature.

    Este trabajo se ocupa de la presencia en el cine de Don Quijote, pero no del libro sino del mito, una perspectiva que va mucho más allá de la adaptación y abre considerablemente el campo de estudio. Para ello, se propone una descripción que se sabe provisional pero intenta ser rigurosa del mito o el patrón narrativo quijotesco como el del lector/imitador romántico e inadecuado de ficción, a partir de la cual se puede elaborar un primer corpus de películas quijotescas. En él se incluyen las protagonizadas por imitadores fallidos de modelos cinematográficos, por Quijotes femeninos que romantizan la realidad y por diversos tipos de héroes que son

  8. Colombine y el cine mudo en España (La mejor film

    Directory of Open Access Journals (Sweden)

    Palomo, M.ª del Pilar

    2010-06-01

    Full Text Available To put into context the works of Colombine on cinema that are analyzed, the appearance of the first films projected in 1896 in Almeria, and the state of cinema in Madrid from 1901 to 1932: the union between cinema and theatre; the first film versions of Spanish plays; the interest towards this new art for theatrical actresses and vanguard writers... Two articles about Francesca Bertini written by Carmen de Burgos are analyzed as well as her novel La Mejor Film, written in 1918, which offers a testament into how films were made at that time.Como contexto de los trabajos de Colombine sobre el cine que se analizan se comenta la aparición de las primeras cintas proyectadas en 1896 en Almería, y la situación del cinematógrafo en Madrid de 1901 a 1932: la unión de cine y teatro; primeras versiones sobre obras literarias españolas; el interés hacia el nuevo arte de las actrices teatrales y de los escritores vanguardistas... Se analizan dos artículos de Carmen de Burgos sobre Francesca Bertini de 1916, y su novela La mejor film, de 1918, que ofrece los pormenores de una filmación en dicha fecha.

  9. Una mirada sobre lo popular. Reflexiones sobre el etnocentrismo en el nuevo cine argentino

    Directory of Open Access Journals (Sweden)

    Gonzalo Assusa

    2013-01-01

    Full Text Available La emergencia del nuevo cine argentino desata una serie de debates teóricos. Probablemente una de las caracterizaciones más convincentes es la que lo define como surgido de una misma crisis, no sólo en el campo cinematográfico, sino también de una misma crisis social. En el marco de un análisis sociológico de este fenómeno cultural, el presente trabajo planteará una hipótesis de lectura para algunas de las producciones audiovisuales del denominado nuevo cine argentino, en pos de establecer conceptualmente la estructuración desde el polo productivo de la elaboración imaginaria de esta crisis social, concretamente, de la emergencia de las clases populares en sus filmes. Para finalizar, se evaluará la productividad de la hipótesis de lectura basada en una definición teórica de lo popular, aplicándola a un cuerpo de filmes del realizador argentino Adrián Caetano, para concluir con reflexiones sobre la importancia del cruce entre la estructuración textual y la estructuración en el momento del consumo.

  10. Influencia del cine en la Generación del 27

    Directory of Open Access Journals (Sweden)

    Flora Lobato

    2011-08-01

    Full Text Available Recibido: 19 de marzo, 2008 • Aprobado: 22 de abril, 2008 Este artículo se centra en la influencia que el cine ejerció en la literatura. La aparición del cinematógrafo supuso una revolución en lo cultural; y el mundo de la imagen vino a sumarse a otras artes milenarias, como la pintura y la literatura, las cuales habían servido al hombre para expresar ideas y sentimientos. El cine se considera una rama más de las vanguardias, y, así, el genio creativo de nuestros poetas de la Generación del 27 se vio fructificado, accediendo a territorios antes no explorados por ellos, con lo que sus imágenes y metáforas sobrepasaron los límites conocidos y se adentraron en un universo nuevo, marcado por lógicas de carácter más aperturista.

  11. Dobutamine cine magnetic resonance imaging after myocardial infarction

    International Nuclear Information System (INIS)

    Giovagnoni, A.; Ligabue, G.; Romagnoli, R.; Reggio Emilia Univ., Reggio Emilia; Rossi, R.; Muia, N.; Modena, M.G.; Reggio Emilia Univ.

    1999-01-01

    Dobutamine Cine MRI is a new diagnostic imaging technique in the pretreatment (revascularization) assessment of myocardial infarction patients. In this issue are reported the result of a comparative study of the diagnostic yield of dobutamine Cine MRI with that of stress echocardiography in the assessment of viable myocardium. A new method for analysis of Cine MR images, employing digital subtraction, aimed at decreasing subjectivity in the quantitative assessment of myocardial wall thickening. Twenty-six patients (21 men and 5 women) with a history of myocardial infarction who were scheduled for revascularization were submitted to stress echocardiography and dobutamine Cine MRI to evaluate contractile recovery of the segments considered akinetic or hypo kinetic at baseline echocardiography. Dobutamine was administered in growing doses (5, 10, 15γ/kg/min). 16 segments of the left ventricle in each patient were considered. In the 416 segments studied, it was found that 307 normo kinetic, 64 scarred and 45 viable segments with stress echocardiography, versus 302 normo kinetic, 83 scarred and 31 viable segments with dobutamine MRI. Three months after revascularization 15 patients were examined to check contractile recovery of the segments considered as viable. Echocardiography had 79% sensitivity and 97% specificity, while Cine MRI had 96% and 86%, respectively. In patients with anteroseptal wall myocardial infarction stress echocardiography had 75% sensitivity and 97% specificity. Echocardiography permits to distinguish viable myocardium and scarred myocardial tissue with good sensitivity and specificity, but Cine MRI performs better. Cine MRI has much higher sensitivity than stress echocardiography and thus makes the technique of choice to evaluate viable myocardium in these sites. The digital subtraction technique is as accurate as manual measurements, but reduces the error rate and permits quicker evaluation, particularly in subendocardial thickening [it

  12. 21 CFR 892.1620 - Cine or spot fluorographic x-ray camera.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Cine or spot fluorographic x-ray camera. 892.1620... (CONTINUED) MEDICAL DEVICES RADIOLOGY DEVICES Diagnostic Devices § 892.1620 Cine or spot fluorographic x-ray camera. (a) Identification. A cine or spot fluorographic x-ray camera is a device intended to photograph...

  13. Image processing in cine-scintigraphy. Organization of the CINE 200 system

    International Nuclear Information System (INIS)

    Tournier, E.; Axelrad, C.; Monge, J.; Beccia, A.; Bouvier, A.

    1975-01-01

    The CINE 200 system, although using a small computer to reduce costs, is shown to be a highly efficient instrument for the processing of scintigraphic images. This was achieved by creating an acquisition and display system branched directly onto the memory, reducing the processing times by the writing of fast micro-programmes, and cutting down the place occupied by the programmes in the live memory by a good organization of these programmes. This internal organization of the system, the insertion and role of the programmes, the data organization and the working procedure are described briefly [fr

  14. Mundos utópicos y distópicos: el progreso y la ciencia como síntomas modernos en el cine mexicano de ciencias ficción / Utopian and Dystopian Worlds: Science and Progress as Modern Symptoms in Mexican Sci-Fi Films (2002-2012)

    OpenAIRE

    Alejandro González Garza; Diego Zavala Scherer

    2016-01-01

    El presente artículo aborda, de manera monográfica, la producción de largometrajes mexicanos asociados al género de ciencia ficción, en el periodo del 2002 al 2012. El texto parte de entender este género como un producto cultural vinculado profundamente con la sociedad que lo imagina. Esta forma de proposición de mundos posibles, futuros o paralelos, es la clave de análisis de los deseos y peligros que, en este caso la sociedad mexicana, vislumbra sobre su propio devenir histórico. A partir d...

  15. El relato corto en el cine. Literatura en 3-D: ‘Memento' de Christopher Nolan (2000

    Directory of Open Access Journals (Sweden)

    David Caldevilla Domínguez

    2012-07-01

    Full Text Available Normal 0 21 false false false /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} La narrativa literaria y la cinematográfica se erigen como dos lenguajes separados por la sustancia expresiva en la que se basan. En el caso de las adaptaciones literarias, estas diferencias se manifiestan otorgando una especial ventaja al cine ya que existen licencias expresivas imposibles para el texto. En el presente artículo se analiza una de las adaptaciones más sorprendentes, innovadoras y rupturantes de la historia del cine, ‘Memento’, que explota, como ninguna otra antes, la posibilidad de romper el hilo narrativo llamado convencional o lineal, para pasar a generar una trama en la que el espectador se erige en lecto-autor. Este tropo cinematográfico halla sus mejores capacidades de expresión en dos géneros (entendiendo género no sólo en su aspecto formal, sino en el temático tan antiguos como el cine mismo: el de ciencia-ficción y el negro, género este último al que pertenece la película analizada, elegida para mejor demostrar esas posibilidades que el cine ofrece a la literatura a través de las adaptaciones. El hecho de  que ‘Memento’ esté basada en un relato corto permite que, además, se consideren las ventajas que este tipo de relatos ofrece a los adaptadores-guionistas frente a los relatos largos como las novelas o las obras teatrales.

  16. Cine-MRI swallowing evaluation after tongue reconstruction

    Energy Technology Data Exchange (ETDEWEB)

    Hartl, Dana M. [Department of Otolaryngology-Head and Neck Surgery, Institute Gustave Roussy, 39 rue Camille Desmoulins, 94805 Villejuif Cedex (France)], E-mail: dmhartl@aol.com; Kolb, Frederic; Bretagne, Evelyne [Department of Otolaryngology-Head and Neck Surgery, Institute Gustave Roussy, 39 rue Camille Desmoulins, 94805 Villejuif Cedex (France); Bidault, Francois; Sigal, Robert [Department of Radiology, Institut Gustave Roussy, 39 rue Camille Desmoulins, 94805 Villejuif Cedex (France)

    2010-01-15

    Objective: To determine the feasibility of cine-MRI for non-invasive swallowing evaluation after surgery for lingual carcinoma with reconstruction using microvascular free flaps. Methods: Ten patients with stage IV carcinoma of the mobile tongue and/or tongue base treated by surgical resection and reconstruction with a free flap were evaluated after an average of 4.3 years (range: 1.5-11 years), using cine-MRI in 'single-shot fast spin echo' (SSFSE) mode. Fiberoptic laryngoscopy of swallowing was performed before MRI to detect aspiration. The tolerance and ability to complete the exam were noted. The mobilities of the oral and pharyngeal structures visualized were evaluated as normal, reduced or increased. Results: Cine-MRI was well tolerated in all cases; 'dry' swallow was performed for the 2 patients with clinical aspiration. Tongue base-pharyngeal wall contact was observed in 5 cases. An increased anterior tongue recoil, increased mandibular recoil, increased posterior oropharyngeal wall advancement and an increased laryngeal elevation were observed in 4 cases. One case of a passive 'slide' mechanism was observed. Conclusions: Cine-MRI is a safe, non-invasive technique for the evaluation of the mobility of oral and oropharyngeal structures after free-flap reconstruction of the tongue. For selected cases, it may be complementary to clinical examination for evaluation of dysphagia after surgery and free-flap reconstruction. Further technical advances will be necessary before cine-MRI can replace videofluoroscopy, however.

  17. Cine magnetic resonance imaging in congenital heart disease

    International Nuclear Information System (INIS)

    Akagi, Teiji; Kiyomatsu, Yumi; Kato, Hirohisa; Abe, Toushi; Nishimura, Hiroshi; Ohtake, Hisashi; Eto, Takaharu.

    1989-01-01

    Cine magnetic resonance imaging (MRI) was performed in 33 patients aged 19 days to 18 years (mean 5.1 years), who had congenital heart disease comfirmed at echocardiography or angiography. Prior to cine MRI, gated MRI with spin echo (SE) sequence was perfomed to evaluate cardiac structure. Cine MRI was demonstrated by fast low fip angle shot imaging technique with a 30 deg flip angle, 15 msec echo time, 30∼40 msec pulse repetition time, and 128X128 acquisition matrix. Abnormalities of cardiac structure were extremely well defined in all patients. Intracardiac and intravasucular blood flow were visualized with high signal intensity area, whereas ventricular filling flow and left to right shunt flow through ventricular septal defect and atrial septal defect were visualized with low signal intensity area. However, in the patients who had severe congestive heart failure or respiratory arrhythmia, the good recording of cine MRI was not obtained because of artifacts. Gated MRI with SE sequence provides excellent visualization of fine structures, and cine MRI can provide high spatial resolution imaging of flow dynamic in a variety of congenital heart disease, noninvasively. (author)

  18. Cine-MRI swallowing evaluation after tongue reconstruction

    International Nuclear Information System (INIS)

    Hartl, Dana M.; Kolb, Frederic; Bretagne, Evelyne; Bidault, Francois; Sigal, Robert

    2010-01-01

    Objective: To determine the feasibility of cine-MRI for non-invasive swallowing evaluation after surgery for lingual carcinoma with reconstruction using microvascular free flaps. Methods: Ten patients with stage IV carcinoma of the mobile tongue and/or tongue base treated by surgical resection and reconstruction with a free flap were evaluated after an average of 4.3 years (range: 1.5-11 years), using cine-MRI in 'single-shot fast spin echo' (SSFSE) mode. Fiberoptic laryngoscopy of swallowing was performed before MRI to detect aspiration. The tolerance and ability to complete the exam were noted. The mobilities of the oral and pharyngeal structures visualized were evaluated as normal, reduced or increased. Results: Cine-MRI was well tolerated in all cases; 'dry' swallow was performed for the 2 patients with clinical aspiration. Tongue base-pharyngeal wall contact was observed in 5 cases. An increased anterior tongue recoil, increased mandibular recoil, increased posterior oropharyngeal wall advancement and an increased laryngeal elevation were observed in 4 cases. One case of a passive 'slide' mechanism was observed. Conclusions: Cine-MRI is a safe, non-invasive technique for the evaluation of the mobility of oral and oropharyngeal structures after free-flap reconstruction of the tongue. For selected cases, it may be complementary to clinical examination for evaluation of dysphagia after surgery and free-flap reconstruction. Further technical advances will be necessary before cine-MRI can replace videofluoroscopy, however.

  19. Jane Austen y C. S. Lewis: de la literatura al cine. Análisis de transposición

    Directory of Open Access Journals (Sweden)

    Mercedes Sarapura Sarapura

    2016-11-01

    Full Text Available Esta es una propuesta de análisis de transposición de la literatura al cine de la novela Orgullo y Prejuicio, de Jane Austen, y del ensayo Una pena observada, de C. S. Lewis. El primer propósito en ambos casos es ahondar en los nuevos aportes de la última versión cinematográfica de la novela de Austen, así como en las características y cualidades de la versión fílmica del cuaderno de anotaciones de C. S. Lewis, a partir de las contribuciones teóricas de autores como Gerard Genette, Georffrey Wagner, Brian Mcfarlane, entre otros. El segundo objetivo se orienta al reconocimiento del intercambio entre el lenguaje cinematográfico y literario como un proceso representativo de la sociedad actual. El hecho de que las adaptaciones (históricamente vistas con gran escepticismo sean ahora continuamente realizadas y acogidas por el público, insta a una revisión y profundización de los estudios que se han hecho al respecto con el fin de conocer la situación actual de la relación existente entre cine y literatura, sus posibilidades creativas, las expectativas de las audiencias, los prejuicios y recelos de los expertos, etc.

  20. El cine experimental de mujeres: antecedentes y desarrollo del cine teórico feminista de los 70 en el Reino Unido

    Directory of Open Access Journals (Sweden)

    Pérez Ríu, Carmen

    2012-12-01

    Full Text Available This article analyses experimental films made by women between 1920 and 1979, focusing particularly on films produced during the 1970s in the UK and their links to feminist film theory. The first part deals with the participation of women in the experimental film movements from the 1920s to the 1970s. The aim of this section is to provide a context for British experimental women directors during the 1970s within the more complex background of experimental film movements, with influences from the nerve centre of the Avant- Garde in Europe and the USA. The second part studies the development of experimental feminist film in the UK during the 1970s, with special attention to two essential filmmakers, Laura Mulvey and Sally Potter. The article concludes with a discussion of some general characteristics of experimental films by women.

    Este artículo analiza la obra experimental de mujeres centrándose principalmente en la que se produjo durante los años 70 en el Reino Unido y su vinculación con la teoría cinematográfica feminista. La primera parte hace un recorrido por la participación de las mujeres en las diferentes corrientes y movimientos del cine experimental desde la década de los 20 hasta los 70. Esta sección tiene como finalidad situar a las directoras experimentales británicas de los 70 dentro de un panorama global mucho más complejo incluyendo las influencias que recibían desde Europa y EE.UU., donde se encontraba el centro neurálgico de las corrientes cinematográficas de vanguardia. Una segunda parte estudia con más detenimiento el fenómeno del cine experimental feminista en Inglaterra durante la década de los 70, con atención especial a las dos cineastas fundamentales de este fenómeno: Laura Mulvey y Sally Potter. A modo de conclusión se incluyen unas características generales del cine experimental de mujeres.

  1. Right ventricular volume estimation with cine MRI

    International Nuclear Information System (INIS)

    Sawachika, Takashi

    1993-01-01

    To quantitate right ventricular (RV) volumes easily using cine MRI, we developed a new method called 'modified area-length method (MOAL method)'. To validate this method, we compared it to the conventional Simpson's rule. Magnetom H15 (Siemens) was used and 6 normal volunteers and 21 patients with various RV sizes were imaged with ECG triggered gradient echo method (FISP, TR 50 ms, TE 12 ms, slice thickness 9 mm). For Simpson's rule transverse images of 12 sequential views which cover whole heart were acquired. For the MOAL method, two orthogonal views were imaged. One was the sagittal view which includes RV outflow tract and the other was the coronal view defined from the sagittal image to cover the whole RV. From these images the area (As, Ac) of RV and the longest distance between RV apex and pulmonary valve (Lmax) were determined. By correlating RV volumes measured by Simpson's rule to As*Ac/Lmax the RV volume could be estimated as follows: V=0.85*As*Ac/Lmax+4.55. Thus the MOAL method demonstrated excellent accuracy to quantitate RV volume and the acquisition time abbreviated to one fifth compared with Simpson's rule. This should be a highly promising method for routine clinical application. (author)

  2. Sexualidad violenta en el cine de Kim Ki-duk

    Directory of Open Access Journals (Sweden)

    Daniel Muñoz Ruiz

    2011-07-01

    Full Text Available En sus más de 110 años de vida el cine ha representado la sexualidad humana en todas sus modalidades y desde los más variados puntos de vista. El cine de Kim Ki-duk ha sorprendido y escandalizado al público por su crudeza y, a veces, excesiva violencia. El director surcoreano ha explorado a lo largo de su filmografía el tema del sexo siempre desde puntos de vista dramáticos y hasta truculentos. En sus películas la mayoría de las relaciones sexuales carecen de amor y afecto. Nunca son placenteras. La violación, la prostitución, la violencia de género y las frustraciones sexuales son temas recurrentes en su cine.

  3. Magnetic resonance (MR) cine imaging of the human heart

    International Nuclear Information System (INIS)

    Waterton, J.C.

    1985-01-01

    A novel approach has been developed for MR cine imaging of the human heart by a modified ECG-gated 2DFT method. A pulse sequence has been devised to minimise the effects of saturation which can be anticipated in sequences that require rapid pulsing. Five frames are produced at the same anatomical level at predetermined intervals during the cardiac cycle. The total time taken to achieve this data is 8 minutes. Additional frames can be interleaved by repeating the sequence with an ECG-gated delay. The anatomical sections, which can be in any orthogonal plane, are then displayed as a cine loop. Cine display in the coronal plane has been used to examine 10 volunteers and 12 patients. In addition to the morphological feature displayed in single slice ECG-gated imaging, areas of dyskinesia can be detected and subjective estimates have been made of left ventricular function. (author)

  4. Intracardiac flow patterns studied by cine MR flow imaging

    International Nuclear Information System (INIS)

    Underwood, S.R.; Firmin, D.N.; Klipstein, R.H.; Rees, R.S.O.; Longmore, D.B.

    1986-01-01

    Velocity mapping by means of cine-MR imaging allows accurate measurement of velocity and flow within the cardiovascular system. A cine display and color coding simplify interpretation. The author have used the technique in a variety of patients to illustrate its potential. Velocity mapping in coronary artery by pass grafts in six patients provided a measure of graft function. Coronary artery velocities were measured in three subjects. Flow was measured through defects in the atrial septum, the ventricular septum, and a Gerbode defect. Velocity was reduced distal to coarctation of the aorta and was increased at the level of a partial venous occlusion by thrombosis. In a patient with isomerism, velocity mapping in the central vessels aided interpretation. Cine-MR imaging velocity mapping combined with conventional imaging yields important functional information on the cardiovascular system

  5. El destape del cartel de cine español. La nueva libertad sexual en la transición española

    Directory of Open Access Journals (Sweden)

    Rocío Collado Alonso

    2011-09-01

    Full Text Available Este artículo, que sintetiza los resultados de un trabajo más amplio, pretende explorar la relación entre el cartel de cine y el cambio social, centrándose en el análisis del primero y no del segundo, por lo que se trata de un estudio comunicacional y no sociológico, buscando las interrelaciones que pueden producirse entre ambas opciones: el uso del cartel como reflejo de los valores sociales existentes y como elemento provocador del cambio social. Para ello situamos nuestro análisis en el período de la transición española, momento histórico de profundas transformaciones políticas, económicas y sociales. Es evidente que en nuestro país, desde comienzos de la década de los setenta, todavía con Franco, empieza a notarse el cambio político que estaba por llegar, sobre todo la permisividad oficial hacia un cine que se atreve a plantear temas anteriormente intocables, relacionados sobretodo con la política y con el sexo. La censura franquista había silenciado durante muchos años el deseo sexual y el erotismo, pero desde finales de los años sesenta comienza a surgir un cine comercial que manifiesta una clara tendencia hacia una cierta liberalización en temáticas sexuales, que terminará afianzándose en los años setenta apareciendo los primeros desnudos en la pantalla. Con todo ello, nuestro trabajo pretende analizar el papel del cartel de cine como reflejo de esta nueva situación. 

  6. Cine y arquetipos en la didáctica de E/LE

    Directory of Open Access Journals (Sweden)

    María Pilar Guitart Escudero

    2012-08-01

    Full Text Available Conocer una lengua necesariamente implica también conocer la cultura en la queesa lengua se produce. En otras palabras, la competencia lingüística está plenamentegarantizada cuando se alcanza cierto grado de competencia cultural. Tal y comoestablecimos en una experiencia práctica anterior sobre cine, trabajar con muestras deconversación real es apostar por el éxito pedagógico ya que dicho material nos permiteacceder a elementos contextualizados, verbales y no verbales que, en definitiva, son losque van a asegurar la plena adecuación comunicativa (Guitart, 2007. Es, en estesentido, en el que volvemos a confirmar que la adecuación lingüística solo es posiblecuando el aprendizaje parte de la explotación de materiales con un alto componentecultural, como el que nos vuelve a ofrecer la gran pantalla.

  7. Interiores y Hannah y sus hermanas: artistas y creadores en el cine de Woody Allen

    Directory of Open Access Journals (Sweden)

    Francisco Casado Pérez

    2015-01-01

    Full Text Available Las reflexiones acerca del arte y las que tienen a los artistas que producen las obras como protagonistas son ejes fundamen- tales en la obra del cineasta neoyorquino Woody Allen. Mediante el estudio de dos de sus películas, Interiores y Hannah y sus hermanas, se analizan las diferentes actitudes de sus personajes al hacer frente a sus pulsiones creativas y cómo estas afectan a sus comportamientos en sociedad. En la primera, prácticamente todos los personajes proyectan en sus vidas sus insatisfacciones a la hora de desarrollar su arte, ya sea la escritura, la fotografía, la decoración, el cine o la interpretación. En la segunda, dos personajes, un pintor y un guionista televisivo, ofrecen más claves para dilucidar el amargo valor que da Allen a la labor artística.

  8. Miradas de mujeres mexicanas en las artes visuales y en el cine

    OpenAIRE

    Ayala Rojas, Laura Lucinda

    2012-01-01

    Miradas de mujeres mexicanas, es el concepto mediante el cual se busca definir las formas de concebir el mundo, mismas que son materializadas en la creación de las artes visuales y en el cine. Las Teorías de la Cultura y de los Estudios Visuales de Género son de primordial interés para dilucidar los detonantes y las consecuencias de los fenómenos que han desembocado en una nueva forma de ver. La década de los setenta es la señalada como paradigmática en el abordaje de una nueva visión de gén...

  9. Uso do filme como estratégia de ensino-aprendizagem sobre pessoas com deficiência: percepção de alunos de enfermagem El uso del cine como estrategia de enseñanza-aprendizaje de las personas com discapacidad: la percepción de los alumnos de enfermería The use of movie as a strategy for teaching-learning about people with impairments: perception of nursing students

    Directory of Open Access Journals (Sweden)

    Paula Marciana Pinheiro de Oliveira

    2012-06-01

    Full Text Available O objetivo deste estudo foi elaborar uma estratégia de ensino-aprendizagem sobre pessoas com deficiência sensorial e registrar a percepção dos alunos de graduação em enfermagem acerca da utilização de filmes como parte da estratégia do processo ensino-aprendizagem sobre pessoas com deficiência sensorial visual, auditiva e de fala. Estudo descritivo, exploratório, qualitativo, desenvolvido no Laboratório de Comunicação em Saúde, do Departamento de Enfermagem da Universidade Federal do Ceará, no período de 2010.1. O primeiro tema tratado foi a deficiência visual, seguida da auditiva e da fala. A associação do uso de filmes a conteúdos teóricos e leitura de textos sobre determinado tema foi considerada experiência prazerosa pelos alunos, motivando o aprendizado. A introdução de filmes representa uma oportunidade para rever e sofisticar a abordagem pedagógica e os conteúdos ministrados pelo professor.El objetivo de este estudio es desarrollar una estrategia para la enseñanza/aprendizaje de las personas con discapacidades sensoriales y el registro sobre la percepción de los estudiantes de enfermería de la universidad sobre el uso de películas como parte del proceso de la estrategia de enseñanza/aprendizaje sobre personas con deficiencia sensorial visual, auditiva y del habla. Estudio descriptivo, exploratorio, cualitativo, desarrollado en el Laboratorio de Comunicación en Salud, Departamento de Enfermería, de la Universidad Federal de Ceará, en el período de 2010.1. El primer tema fue la deficiencia visual, seguido de la auditiva y del habla. Relacionar el uso de las películas a contenidos teóricos y lectura de textos sobre tema en particular fue considerada una experiencia agradable por los alumnos, motivándoles el aprendizaje. La introducción de las películas representa una oportunidad de revisar y refinar el enfoque pedagógico y los contenidos ministrados por el profesor.The objective of this study is to

  10. Dual breath-hold magnetic resonance cine evaluation of global and regional cardiac function

    International Nuclear Information System (INIS)

    Wintersperger, Bernd J.; Dietrich, Olaf; Huber, Armin; Reiser, Maximilian F.; Schoenberg, Stefan O.; Sincleair, Spencer; Runge, Val M.

    2007-01-01

    The purpose of our study was to evaluate the accuracy of a multislice cine magnetic resonance imaging (MRI) technique with parallel imaging in regard to global and regional left ventricular function. Forty-two individuals underwent cine MRI on a 1.5-tesla scanner. Cine MRI used a steady-state free precession technique and was performed as a single-slice technique (nonTSENSE cine) and an accelerated multislice technique (TSENSE cine) with five slices per breath-hold. End diastolic volume (EDV), end systolic volume (ESV), and ejection fraction (EF) were evaluated for all data sets and in regard to regional wall motion and regional wall motion analysis, and quantitative regional wall thickness and systolic thickening were also assessed. EDV, ESV, and EF based on TSENSE cine showed excellent correlation to the nonTSENSE cine approach (all r 2 =0.99, P<0.001). While EDV evaluations showed a small underestimation for TSENSE cine, ESV and EF showed accurate results compared with nonTSENSE cine. Both readers showed good agreement (κ=0.72) in regional wall motion assessment comparing both techniques. Data acquisition for the multislice approach was significantly shorter (∝75%) that in single-slice cine. We conclude that accurate evaluation of regional wall motion and left ventricular EF is possible using accelerated multislice cine MR with high spatial and temporal resolution. (orig.)

  11. Cine CT: a new technology for cardiac computed tomography

    International Nuclear Information System (INIS)

    Boyd, D.P.; Peschmann, K.R.; Rand, R.E.; Napel, S.A.; Gould, R.; Farmer, D.W.; Lipton, M.J.; Higgins, C.B.; Couch, J.L.

    1987-01-01

    The technical requirements for adequate evaluation of cardiac anatomy and physiology, namely scan speeds in the 33-100 msec range, simultaneous multi-slice capability, 15-20 multi-level scans/second and a repeat multi-slice study at one per second, have been realized with the inception of the Cine-CT scanner. This scanner acquires scan data in 50 milliseconds by eliminating moving parts and using a scanning electron beam to produce a high speed X-ray source. The authors describe this scanner and the three scanning modes available: continuous or cine mode; flow or triggered mode; and full resolution mode. (Auth.)

  12. Evaluation of highly accelerated real-time cardiac cine MRI in tachycardia.

    Science.gov (United States)

    Bassett, Elwin C; Kholmovski, Eugene G; Wilson, Brent D; DiBella, Edward V R; Dosdall, Derek J; Ranjan, Ravi; McGann, Christopher J; Kim, Daniel

    2014-02-01

    Electrocardiogram (ECG)-gated breath-hold cine MRI is considered to be the gold standard test for the assessment of cardiac function. However, it may fail in patients with arrhythmia, impaired breath-hold capacity and poor ECG gating. Although ungated real-time cine MRI may mitigate these problems, commercially available real-time cine MRI pulse sequences using parallel imaging typically yield relatively poor spatiotemporal resolution because of their low image acquisition efficiency. As an extension of our previous work, the purpose of this study was to evaluate the diagnostic quality and accuracy of eight-fold-accelerated real-time cine MRI with compressed sensing (CS) for the quantification of cardiac function in tachycardia, where it is challenging for real-time cine MRI to provide sufficient spatiotemporal resolution. We evaluated the performances of eight-fold-accelerated cine MRI with CS, three-fold-accelerated real-time cine MRI with temporal generalized autocalibrating partially parallel acquisitions (TGRAPPA) and ECG-gated breath-hold cine MRI in 21 large animals with tachycardia (mean heart rate, 104 beats per minute) at 3T. For each cine MRI method, two expert readers evaluated the diagnostic quality in four categories (image quality, temporal fidelity of wall motion, artifacts and apparent noise) using a Likert scale (1-5, worst to best). One reader evaluated the left ventricular functional parameters. The diagnostic quality scores were significantly different between the three cine pulse sequences, except for the artifact level between CS and TGRAPPA real-time cine MRI. Both ECG-gated breath-hold cine MRI and eight-fold accelerated real-time cine MRI yielded all four scores of ≥ 3.0 (acceptable), whereas three-fold-accelerated real-time cine MRI yielded all scores below 3.0, except for artifact (3.0). The left ventricular ejection fraction (LVEF) measurements agreed better between ECG-gated cine MRI and eight-fold-accelerated real-time cine MRI

  13. Vector analysis

    CERN Document Server

    Newell, Homer E

    2006-01-01

    When employed with skill and understanding, vector analysis can be a practical and powerful tool. This text develops the algebra and calculus of vectors in a manner useful to physicists and engineers. Numerous exercises (with answers) not only provide practice in manipulation but also help establish students' physical and geometric intuition in regard to vectors and vector concepts.Part I, the basic portion of the text, consists of a thorough treatment of vector algebra and the vector calculus. Part II presents the illustrative matter, demonstrating applications to kinematics, mechanics, and e

  14. About vectors

    CERN Document Server

    Hoffmann, Banesh

    1975-01-01

    From his unusual beginning in ""Defining a vector"" to his final comments on ""What then is a vector?"" author Banesh Hoffmann has written a book that is provocative and unconventional. In his emphasis on the unresolved issue of defining a vector, Hoffmann mixes pure and applied mathematics without using calculus. The result is a treatment that can serve as a supplement and corrective to textbooks, as well as collateral reading in all courses that deal with vectors. Major topics include vectors and the parallelogram law; algebraic notation and basic ideas; vector algebra; scalars and scalar p

  15. ¿Qué hubiera sido de mi vida sin el cine?. La experiencia cinematográfica en la Ciudad de México

    Directory of Open Access Journals (Sweden)

    Jerónimo Repoll

    2014-02-01

    Full Text Available En el presente artículo, exploramos la experiencia cinematográfica en la Ciudad de México, teniendo como referente a la oferta fílmica, pero no limitándonos a ella. Ampliamos la mirada, entonces, a la histórica, cultural y social del cine, anclada en los usos y apropiaciones. De esta manera, enmarcados en la perspectiva de los estudios culturales, esta investigación constituye un particular estudio de recepción, afi anzado en la memoria (siempre selectiva de los espectadores de cine. Al mismo tiempo, es necesario señalar que esteartículo es fruto de una investigación más amplia.

  16. Some Semantic Properties of Romanian Interrogatives: "Care" and "Cine."

    Science.gov (United States)

    Vasiliu, E.

    The aim of this paper is to account for some semantic properties of Romanian interrogatives "ce" and "cine" by establishing some definite correlations between various contextual restrictions governing the use of these interrogative particles and the "meaning" which might be assigned to each of these particles in any…

  17. Marruecos: 44 años de cine colonial

    Directory of Open Access Journals (Sweden)

    Lic. Mohamed Lemrini

    2000-01-01

    Full Text Available Haciendo un poco de historia, el Norte de África conoció una escalada militar colonizadora y un gran interés por las grandes potencias europeas del momento a finales del siglo XIX, coincidiendo precisamente con el nacimiento del cine.

  18. Kinematic analysis of the knee joint by cine MRI

    International Nuclear Information System (INIS)

    Niitsu, Mamoru; Akisada, Masayoshi; Anno, Izumi; Matsumoto, Kunihiko; Kuno, Shin-ya; Miyakawa, Shunpei; Inouye, Tamon; Kose, Katsumi.

    1989-01-01

    In order to obtain the MR imaging of a moving knee joint, we developed a drive system of the knee. A reciprocating reversible motor with a rope and pulleys drove a knee brace with the knee bending and extending every two seconds. Using photo sensor probe for gating cine acquisition, we got 16-time frames/cycle MR images. Such as articular cartilage, ligaments and synovial fluid, the fine components of a moving knee joint were clearly seen. In a dynamic display, these cine images demonstrated 'actual' movement of the knee joint. Moving joint fluid and defect of anterior cruciate ligament were demonstrated in the case of knee injury. These findings were not seen on static images. Cine MR imaging was also helpful for evaluating the chronic joint disease and ligament reconstruction. Through the use of the present drive system and cine acquisition, dynamic MR imaging of a moving knee joint is clearly demonstrated and it may provide useful information in the kinematic analysis of the normal and pathologic knee. (author)

  19. Analysis of blowout fractures using cine mode MRI

    International Nuclear Information System (INIS)

    Kawahara, Masaaki; Shiihara, Kumiko; Kimura, Hisashi; Fukai, Sakuko; Tabuchi, Akio; Kojo, Tuyoshi

    1995-01-01

    By observing conventional CT and MRI images, it is difficult to distinguish extension failure from adhesion, bone fracture or damage to the extraocular muscle, any one of which may be the direct cause of the eye movement disturbance accompanying blowout fracture. We therefore carried out dynamic analysis of eye movement disturbance using a cine mode MRI. We put seven fixation points in the gantry of the MRI and filmed eye movement disturbances by the gradient echo method, using a surface coil and holding the vision on each fixation point. We also video recorded the CRT monitor of the MRI to obtain dynamic MRI images. The subjects comprised 5 cases (7-23 years old). In 4 cases, we started orthoptic treatment, saccadic eye movement training, convergence training and fusional amplitude training after surgery, with only orthoptic treatment in the 5 th case. In all cases, fusion area improvement was recognized during training. In 2 cases examined by cine mode MRI before and after surgery, we observed improved eye movement after training, the effectiveness of which was thereby proven. Also, using cine mode MRI we were able to determine the character of incarcerated tissue and the cause of eye movement disturbance. We conclude that it blowout fracture, cine mode MRI may be useful in selecting treatment and observing its effectiveness. (author)

  20. Highly-Accelerated Real-Time Cardiac Cine MRI Using k-t SPARSE-SENSE

    Science.gov (United States)

    Feng, Li; Srichai, Monvadi B.; Lim, Ruth P.; Harrison, Alexis; King, Wilson; Adluru, Ganesh; Dibella, Edward VR.; Sodickson, Daniel K.; Otazo, Ricardo; Kim, Daniel

    2012-01-01

    For patients with impaired breath-hold capacity and/or arrhythmias, real-time cine MRI may be more clinically useful than breath-hold cine MRI. However, commercially available real-time cine MRI methods using parallel imaging typically yield relatively poor spatio-temporal resolution due to their low image acquisition speed. We sought to achieve relatively high spatial resolution (~2.5mm × 2.5mm) and temporal resolution (~40ms), to produce high-quality real-time cine MR images that could be applied clinically for wall motion assessment and measurement of left ventricular (LV) function. In this work, we present an 8-fold accelerated real-time cardiac cine MRI pulse sequence using a combination of compressed sensing and parallel imaging (k-t SPARSE-SENSE). Compared with reference, breath-hold cine MRI, our 8-fold accelerated real-time cine MRI produced significantly worse qualitative grades (1–5 scale), but its image quality and temporal fidelity scores were above 3.0 (adequate) and artifacts and noise scores were below 3.0 (moderate), suggesting that acceptable diagnostic image quality can be achieved. Additionally, both 8-fold accelerated real-time cine and breath-hold cine MRI yielded comparable LV function measurements, with coefficient of variation cine MRI with k-t SPARSE-SENSE is a promising modality for rapid imaging of myocardial function. PMID:22887290

  1. Highly accelerated real-time cardiac cine MRI using k-t SPARSE-SENSE.

    Science.gov (United States)

    Feng, Li; Srichai, Monvadi B; Lim, Ruth P; Harrison, Alexis; King, Wilson; Adluru, Ganesh; Dibella, Edward V R; Sodickson, Daniel K; Otazo, Ricardo; Kim, Daniel

    2013-07-01

    For patients with impaired breath-hold capacity and/or arrhythmias, real-time cine MRI may be more clinically useful than breath-hold cine MRI. However, commercially available real-time cine MRI methods using parallel imaging typically yield relatively poor spatio-temporal resolution due to their low image acquisition speed. We sought to achieve relatively high spatial resolution (∼2.5 × 2.5 mm(2)) and temporal resolution (∼40 ms), to produce high-quality real-time cine MR images that could be applied clinically for wall motion assessment and measurement of left ventricular function. In this work, we present an eightfold accelerated real-time cardiac cine MRI pulse sequence using a combination of compressed sensing and parallel imaging (k-t SPARSE-SENSE). Compared with reference, breath-hold cine MRI, our eightfold accelerated real-time cine MRI produced significantly worse qualitative grades (1-5 scale), but its image quality and temporal fidelity scores were above 3.0 (adequate) and artifacts and noise scores were below 3.0 (moderate), suggesting that acceptable diagnostic image quality can be achieved. Additionally, both eightfold accelerated real-time cine and breath-hold cine MRI yielded comparable left ventricular function measurements, with coefficient of variation cine MRI with k-t SPARSE-SENSE is a promising modality for rapid imaging of myocardial function. Copyright © 2012 Wiley Periodicals, Inc.

  2. Enseñanza del liderazgo a través del cine.

    Directory of Open Access Journals (Sweden)

    Alfredo Gorrochotegui

    2012-12-01

    Full Text Available Se describe la experiencia del uso de tres películas como recurso didáctico para enseñar conductas de liderazgo a un grupo de gerentes de una empresa de televisión del sector privado. Se hace un análisis acerca de la reflexión como proceso de elaboración típicamente humano el cual es sensible a estímulos externos, como ocurre con el cine. Luego, se muestran algunas iniciativas que han usado filmes para formar conductas de liderazgo. Cada película ofreció su propia dimensión del liderazgo: la importancia de ser ejemplo para los demás en la primera; el liderazgo negativo y positivo, en la segunda; y los estilos de liderazgo, en la última. Finalmente, se analiza, a través de un cuestionario aplicado a gerentes, las valoraciones personales sobre la utilidad de las películas para enseñar conductas de liderazgo, que resultó en un acuerdo unánime en expresar que la experiencia les ayudó a comprender cuáles son las mejores prácticas de liderazgo que ellos mismos pueden desarrollar en sus propios trabajos.

  3. El Cine moral y la censura, un medio empleado por la Acción Católica Colombiana 1934 – 1942

    Directory of Open Access Journals (Sweden)

    Sergio Armando Cáceres Mateus

    2011-01-01

    Full Text Available Desde que el cine irrumpió en el mundo en 1891, la Iglesia Católica puso atención a la presencia del invento y las consecuencias que tendría para la sociedad. Después, arremetió contra el cine inmoral, por medio de la creación de “santas cruzadas” lideradas por miembros de la Acción Católica, que tenían como objetivos: la producción de cine moral a nivel Internacional a través de empresas Cinematográficas en Europa; y consolidar un mecanismo de censura que se implementó con la Legión de la Decencia de Estados Unidos. En este sentido, entre los medios empleados por la Acción Católica Colombiana entre 1934 y 1942, se observa que la censura a la cinematografía es una de ellas. Es a través de los medios de comunicación impresos católicos como La Revista de la Acción Católica Colombiana (Bogotá, La Unidad Católica (Pamplona, El Granito de Arena (San José de Cúcuta y El Alcázar (Bucaramanga, que se lleva a cabo la censura a la cinematografía. De manera que, este mecanismo fue un medio de la Acción Católica y de la Iglesia Católica para controlar y vigilar la reproducción de películas en los salones de cine de las parroquias Colombianas.

  4. Elementary vectors

    CERN Document Server

    Wolstenholme, E Œ

    1978-01-01

    Elementary Vectors, Third Edition serves as an introductory course in vector analysis and is intended to present the theoretical and application aspects of vectors. The book covers topics that rigorously explain and provide definitions, principles, equations, and methods in vector analysis. Applications of vector methods to simple kinematical and dynamical problems; central forces and orbits; and solutions to geometrical problems are discussed as well. This edition of the text also provides an appendix, intended for students, which the author hopes to bridge the gap between theory and appl

  5. Self-gated fat-suppressed cardiac cine MRI.

    Science.gov (United States)

    Ingle, R Reeve; Santos, Juan M; Overall, William R; McConnell, Michael V; Hu, Bob S; Nishimura, Dwight G

    2015-05-01

    To develop a self-gated alternating repetition time balanced steady-state free precession (ATR-SSFP) pulse sequence for fat-suppressed cardiac cine imaging. Cardiac gating is computed retrospectively using acquired magnetic resonance self-gating data, enabling cine imaging without the need for electrocardiogram (ECG) gating. Modification of the slice-select rephasing gradients of an ATR-SSFP sequence enables the acquisition of a one-dimensional self-gating readout during the unused short repetition time (TR). Self-gating readouts are acquired during every TR of segmented, breath-held cardiac scans. A template-matching algorithm is designed to compute cardiac trigger points from the self-gating signals, and these trigger points are used for retrospective cine reconstruction. The proposed approach is compared with ECG-gated ATR-SSFP and balanced steady-state free precession in 10 volunteers and five patients. The difference of ECG and self-gating trigger times has a variability of 13 ± 11 ms (mean ± SD). Qualitative reviewer scoring and ranking indicate no statistically significant differences (P > 0.05) between self-gated and ECG-gated ATR-SSFP images. Quantitative blood-myocardial border sharpness is not significantly different among self-gated ATR-SSFP ( 0.61±0.15 mm -1), ECG-gated ATR-SSFP ( 0.61±0.15 mm -1), or conventional ECG-gated balanced steady-state free precession cine MRI ( 0.59±0.15 mm -1). The proposed self-gated ATR-SSFP sequence enables fat-suppressed cardiac cine imaging at 1.5 T without the need for ECG gating and without decreasing the imaging efficiency of ATR-SSFP. © 2014 Wiley Periodicals, Inc.

  6. Cine y psicología: las emociones en el cine de terror y la comedia en personajes trastornados

    OpenAIRE

    Cabrera Muñoz, Beatriz

    2013-01-01

    Se analiza la visión que se ha dado en el cine sobre los trastornos de la personalidad. Cómo el comunicador construye a esos personajes para darle la mayor credibilidad y realidad posible. Se repasan las diferentes estrategias empleadas en el lenguaje cinematográfico en los géneros de terror y comedia

  7. Dobutamine cine magnetic resonance imaging after myocardial infarction; Cine Risonanza Magnetica con dobutamina dopo infarto del miocardio

    Energy Technology Data Exchange (ETDEWEB)

    Giovagnoni, A.; Ligabue, G.; Romagnoli, R. [Modena Univ., Modena (Italy). Scienze Radiologiche, Dipt. di Medicina Interna; Reggio Emilia Univ., Reggio Emilia (Italy). Cattedra di Cardiologia; Rossi, R.; Muia, N.; Modena, M.G. [Modena Univ., Modena (Italy). Dipt. di Scienze Mediche, Oncologiche e Radiologiche; Reggio Emilia Univ. (Italy). Dipt. di Scienze Mediche, Oncologiche e Radiologiche

    1999-12-01

    Dobutamine Cine MRI is a new diagnostic imaging technique in the pretreatment (revascularization) assessment of myocardial infarction patients. In this issue are reported the result of a comparative study of the diagnostic yield of dobutamine Cine MRI with that of stress echocardiography in the assessment of viable myocardium. A new method for analysis of Cine MR images, employing digital subtraction, aimed at decreasing subjectivity in the quantitative assessment of myocardial wall thickening. Twenty-six patients (21 men and 5 women) with a history of myocardial infarction who were scheduled for revascularization were submitted to stress echocardiography and dobutamine Cine MRI to evaluate contractile recovery of the segments considered akinetic or hypo kinetic at baseline echocardiography. Dobutamine was administered in growing doses (5, 10, 15{gamma}/kg/min). 16 segments of the left ventricle in each patient were considered. In the 416 segments studied, it was found that 307 normo kinetic, 64 scarred and 45 viable segments with stress echocardiography, versus 302 normo kinetic, 83 scarred and 31 viable segments with dobutamine MRI. Three months after revascularization 15 patients were examined to check contractile recovery of the segments considered as viable. Echocardiography had 79% sensitivity and 97% specificity, while Cine MRI had 96% and 86%, respectively. In patients with anteroseptal wall myocardial infarction stress echocardiography had 75% sensitivity and 97% specificity. Echocardiography permits to distinguish viable myocardium and scarred myocardial tissue with good sensitivity and specificity, but Cine MRI performs better. Cine MRI has much higher sensitivity than stress echocardiography and thus makes the technique of choice to evaluate viable myocardium in these sites. The digital subtraction technique is as accurate as manual measurements, but reduces the error rate and permits quicker evaluation, particularly in subendocardial thickening

  8. Mujeres de cine: del glamour de Hollywood a los modelos alternativos

    Directory of Open Access Journals (Sweden)

    Caballero Wangüemert, María

    2016-04-01

    Full Text Available Cinema has reflected the great changes that women, family and society have undergone in the twentieth century. Film was born male, but throughout the twentieth century, woman has gone from being an object of desire, the star of the love story in Hollywood comedies, to commanding the adventure of cinema as a screenwriter (E. Thompson, RP Jhavbala , producer (B. Streisand, I. Bollaín and, especially, director: Streisand, M. von Trotta, S. Coppola, A. Huston among others, but also M. Nair, D. Mehta, I. Bollaín, I. Coixet, G. Querejeta, K. Bigelow, L. Schefig, S. Bier, N. Labaki, M. Ruiz de Austri. This paper assumes the validity of this diachrony, in order to consider one question: What kind of family models and what kind of women’s models does the big screen provide us with, beyond the old dichotomy of angel/ whore?Es un hecho que el cine ha reflejado la revolución de mujer, familia y sociedad en el siglo XX. El cine nace en masculino: es el hombre quien desempeña las funciones públicas mientras la mujer reina en el ámbito privado, educando desde el hogar a los futuros ciudadanos. ¿Es suficiente ese papel para la mujer actual? Desde luego que no y de ahí su Aasalto al poder: en el caso del cine, la mujer ha pasado de ser objeto de deseo, la protagonista de la historia amorosa en las comedias de Hollywood, a comandar la aventura del séptimo arte como guionista (E. Thompson, R. P. Jhavbala, Diablo Cody, productora (B. Streisand, I. Bollaín y, sobre todo, directora: la propia Streisand, M. von Trotta, S. Coppola, A. Huston... pero también M. Nair, D. Metha, I. Bollaín, I. Coixet, G. Querejeta, K. Bigelow, L. Schefig, S. Bier, N. Labaki, M. Ruíz de Austri... Mi trabajo da por supuesta esa diacronía, para plantearse una pregunta: ¿qué tipos de familia y qué problemáticas femeninas nos acerca últimamente la gran pantalla?

  9. Cine y mitología de los orígenes en el nacionalismo norteamericano: el último mohicano

    Directory of Open Access Journals (Sweden)

    Rafael MENÉNDEZ FERNÁNDEZ

    2014-07-01

    Full Text Available Cine y nacionalismo presentan una interesante y continuada relación, sobre todo a través de géneros como el épico, histórico o de aventuras. Se estudia en el presente trabajo esta relación, a partir del film “El último mohicano”, dirigido por Michael Mann en 1992, que presenta elementos clave para entender la importancia de la conformación de los mitos sobre los orígenes de la nación norteamericana. El film, como la conocida novela en que se inspira libremente, centra su trama en aspectos y épocas claves de los movimientos nacionalistas, al entroncar además con el movimiento cultural del romanticismo y su peculiar manera de valorar el pasado histórico y los orígenes de pueblos, culturas y naciones

  10. An initial study on the estimation of time-varying volumetric treatment images and 3D tumor localization from single MV cine EPID images

    Energy Technology Data Exchange (ETDEWEB)

    Mishra, Pankaj, E-mail: pankaj.mishra@varian.com; Mak, Raymond H.; Rottmann, Joerg; Bryant, Jonathan H.; Williams, Christopher L.; Berbeco, Ross I.; Lewis, John H. [Brigham and Women' s Hospital, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts 02115 (United States); Li, Ruijiang [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305 (United States)

    2014-08-15

    Purpose: In this work the authors develop and investigate the feasibility of a method to estimate time-varying volumetric images from individual MV cine electronic portal image device (EPID) images. Methods: The authors adopt a two-step approach to time-varying volumetric image estimation from a single cine EPID image. In the first step, a patient-specific motion model is constructed from 4DCT. In the second step, parameters in the motion model are tuned according to the information in the EPID image. The patient-specific motion model is based on a compact representation of lung motion represented in displacement vector fields (DVFs). DVFs are calculated through deformable image registration (DIR) of a reference 4DCT phase image (typically peak-exhale) to a set of 4DCT images corresponding to different phases of a breathing cycle. The salient characteristics in the DVFs are captured in a compact representation through principal component analysis (PCA). PCA decouples the spatial and temporal components of the DVFs. Spatial information is represented in eigenvectors and the temporal information is represented by eigen-coefficients. To generate a new volumetric image, the eigen-coefficients are updated via cost function optimization based on digitally reconstructed radiographs and projection images. The updated eigen-coefficients are then multiplied with the eigenvectors to obtain updated DVFs that, in turn, give the volumetric image corresponding to the cine EPID image. Results: The algorithm was tested on (1) Eight digital eXtended CArdiac-Torso phantom datasets based on different irregular patient breathing patterns and (2) patient cine EPID images acquired during SBRT treatments. The root-mean-squared tumor localization error is (0.73 ± 0.63 mm) for the XCAT data and (0.90 ± 0.65 mm) for the patient data. Conclusions: The authors introduced a novel method of estimating volumetric time-varying images from single cine EPID images and a PCA-based lung motion model

  11. Comparisons of images simultaneously documented by digital subtraction coronary arteriography and cine coronary arteriography

    International Nuclear Information System (INIS)

    Kimura, Koji; Takamiya, Makoto; Yamamoto, Kazuo; Ohta, Mitsushige; Naito, Hiroaki

    1988-01-01

    Using an angiography apparatus capable of simultaneously processing digital subtraction angiograms and cine angiograms, the diagnostic capabilities of both methods for the coronary arteries (DSCAG and Cine-CAG) were compared. Twenty stenotic lesions of the coronary arteries of 11 patients were evaluated using both modalities. The severity of stenosis using DSCAG with a 512x512x8 bit matrix was semiautomatically measured on the cathode ray tube (CRT) based on enlarged images on the screen of a Vanguard cine projector which were of the same size as those of or 10 times larger than images of Cine-CAG. The negative and positive hard copies of DSCAG images were also compared with those of Cine-CAG. The correlation coefficients of the severity of stenosis by DSCAG and Cine-CAG were as follows: (1) the same size DSCAG images on CRT to Cine-CAG, 0.95, (2) 10 times enlarged DSCAG images on CRT to Cine-CAG, 0.96, and (3) the same size DSCAG images on negative and positive hard copies to Cine-CAG, 0.97. The semiautomatically measured values of 10 times enlarged DSCAG images on CRT and the manually measured values of the same size negative and positive DSCAG images in hard copy closely correlated with the values measured using Cine-CAG. When the liver was superimposed in the long-axis projection, the diagnostic capabilities of DSCAG and Cine-CAG were compared. The materials included 10 left coronary arteriograms and 11 right coronary arteriograms. Diagnostically, DSCAG was more useful than Cine-CAG in the long-axis projection. (author)

  12. Contrast-enhanced specific absorption rate-efficient 3D cardiac cine with respiratory-triggered radiofrequency gating.

    Science.gov (United States)

    Henningsson, Markus; Chan, Raymond H; Goddu, Beth; Goepfert, Lois A; Razavi, Reza; Botnar, Rene M; Schaeffter, Tobias; Nezafat, Reza

    2013-04-01

    To investigate the use of radiofrequency (RF) gating in conjunction with a paramagnetic contrast agent to reduce the specific absorption rate (SAR) and increase the blood-myocardium contrast in balanced steady-state free precession (bSSFP) 3D cardiac cine. RF gating was implemented by synchronizing the RF-excitation with an external respiratory sensor (bellows), which could additionally be used for respiratory gating. For reference, respiratory-gated 3D cine images were acquired without RF gating. Free-breathing 3D cine images were acquired in eight healthy subjects before and after contrast injection (Gd-BOPTA) and compared to breath-hold 2D cine. RF-gated 3D cine reduced the SAR by nearly 40% without introducing significant artifacts while providing left ventricle (LV) measurements similar to those obtained with 2D cine. The contrast-to-noise ratio (CNR) was significantly higher for 3D cine compared to 2D cine, both before and after contrast injection; however, no statistically significant CNR increase was observed for the postcontrast 3D cine compared to the precontrast acquisitions. Respiratory-triggered RF gating significantly reduces SAR in 3D cine acquisitions, which may enable a more widespread clinical use of 3D cine. Furthermore, CNR of 3D bSSFP cine is higher than of 2D and administration of Gd-BOPTA does not improve the CNR of 3D cine. Copyright © 2012 Wiley Periodicals, Inc.

  13. Prostate gland motion assessed with cine-magnetic resonance imaging (cine-MRI)

    International Nuclear Information System (INIS)

    Ghilezan, Michel J.; Jaffray, David A.; Siewerdsen, Jeffrey H.; Herk, Marcel van; Shetty, Anil; Sharpe, Michael B.; Zafar Jafri, Syed; Vicini, Frank A.; Matter, Richard C.; Brabbins, Donald S.; Martinez, Alvaro A.

    2005-01-01

    Purpose: To quantify prostate motion during a radiation therapy treatment using cine-magnetic resonance imaging (cine-MRI) for time frames comparable to that expected in an image-guided radiation therapy treatment session (20-30 min). Materials and Methods: Six patients undergoing radiation therapy for prostate cancer were imaged on 3 days, over the course of therapy (Weeks 1, 3, and 5). Four hundred images were acquired during the 1-h MRI session in 3 sagittal planes through the prostate at 6-s intervals. Eleven anatomic points of interest (POIs) have been used to characterize prostate/bony pelvis/abdominal wall displacement. Motion traces and standard deviation for each of the 11 POIs have been determined. The probability of displacement over time has also been calculated. Results: Patients were divided into 2 groups according to rectal filling status: full vs. empty rectum. The displacement of POIs (standard deviation) ranged from 0.98 to 1.72 mm for the full-rectum group and from 0.68 to 1.04 mm for the empty-rectum group. The low standard deviations in position (2 mm or less) would suggest that these excursions have a low frequency of occurrence. The most sensitive prostate POI to rectal wall motion was the midposterior with a standard deviation of 1.72 mm in the full-rectum group vs. 0.79 mm in the empty-rectum group (p 0.0001). This POI has a 10% probability of moving more than 3 mm in a time frame of ∼1 min if the rectum is full vs. ∼20 min if the rectum is empty. Conclusion: Motion of the prostate and seminal vesicles during a time frame similar to a standard treatment session is reduced compared to that reported in interfraction studies. The most significant predictor for intrafraction prostate motion is the status of rectal filling. A prostate displacement of <3 mm (90%) can be expected for the 20 min after the moment of initial imaging for patients with an empty rectum. This is not the case for patients presenting with full rectum. The determination

  14. Vector analysis

    CERN Document Server

    Brand, Louis

    2006-01-01

    The use of vectors not only simplifies treatments of differential geometry, mechanics, hydrodynamics, and electrodynamics, but also makes mathematical and physical concepts more tangible and easy to grasp. This text for undergraduates was designed as a short introductory course to give students the tools of vector algebra and calculus, as well as a brief glimpse into these subjects' manifold applications. The applications are developed to the extent that the uses of the potential function, both scalar and vector, are fully illustrated. Moreover, the basic postulates of vector analysis are brou

  15. Spirometer-controlled cine magnetic resonance imaging used to diagnose tracheobronchomalacia in paediatric patients.

    Science.gov (United States)

    Ciet, Pierluigi; Wielopolski, Piotr; Manniesing, Rashindra; Lever, Sandra; de Bruijne, Marleen; Morana, Giovanni; Muzzio, Pier Carlo; Lequin, Maarten H; Tiddens, Harm A W M

    2014-01-01

    Tracheobronchomalacia (TBM) is defined as an excessive collapse of the intrathoracic trachea. Bronchoscopy is the gold standard for diagnosing TBM; however it has major disadvantages, such as general anaesthesia. Cine computed tomography (CT) is a noninvasive alternative used to diagnose TBM, but its use in children is restricted by ionising radiation. Our aim was to evaluate the feasibility of spirometer-controlled cine magnetic resonance imaging (MRI) as an alternative to cine-CT in a retrospective study. 12 children with a mean age (range) of 12 years (7-17 years), suspected of having TBM, underwent cine-MRI. Static scans were acquired at end-inspiration and expiration covering the thorax using a three-dimensional spoiled gradient echo sequence. Three-dimensional dynamic scans were performed covering only the central airways. TBM was defined as a decrease of the trachea or bronchi diameter >50% at end-expiration in the static and dynamic scans. The success rate of the cine-MRI protocol was 92%. Cine-MRI was compared with bronchoscopy or chest CT in seven subjects. TBM was diagnosed by cine-MRI in seven (58%) out of 12 children and was confirmed by bronchoscopy or CT. In four patients, cine-MRI demonstrated tracheal narrowing that was not present in the static scans. Spirometer controlled cine-MRI is a promising technique to assess TBM in children and has the potential to replace bronchoscopy.

  16. Left ventricular strain and its pattern estimated from cine CMR and validation with DENSE

    International Nuclear Information System (INIS)

    Gao, Hao; Luo, Xiaoyu; Allan, Andrew; McComb, Christie; Berry, Colin

    2014-01-01

    Measurement of local strain provides insight into the biomechanical significance of viable myocardium. We attempted to estimate myocardial strain from cine cardiovascular magnetic resonance (CMR) images by using a b-spline deformable image registration method. Three healthy volunteers and 41 patients with either recent or chronic myocardial infarction (MI) were studied at 1.5 Tesla with both cine and DENSE CMR. Regional circumferential and radial left ventricular strains were estimated from cine and DENSE acquisitions. In all healthy volunteers, there was no difference for peak circumferential strain (− 0.18 ± 0.04 versus − 0.18 ± 0.03, p = 0.76) between cine and DENSE CMR, however peak radial strain was overestimated from cine (0.84 ± 0.37 versus 0.49 ± 0.2, p < 0.01). In the patient study, the peak strain patterns predicted by cine were similar to the patterns from DENSE, including the strain evolution related to recovery time and strain patterns related to MI scar extent. Furthermore, cine-derived strain disclosed different strain patterns in MI and non-MI regions, and regions with transmural and non-transmural MI as DENSE. Although there were large variations with radial strain measurements from cine CMR images, useful circumferential strain information can be obtained from routine clinical CMR imaging. Cine strain analysis has potential to improve the diagnostic yield from routine CMR imaging in clinical practice. (paper)

  17. Single-breath-hold 3-D CINE imaging of the left ventricle using Cartesian sampling.

    Science.gov (United States)

    Wetzl, Jens; Schmidt, Michaela; Pontana, François; Longère, Benjamin; Lugauer, Felix; Maier, Andreas; Hornegger, Joachim; Forman, Christoph

    2018-02-01

    Our objectives were to evaluate a single-breath-hold approach for Cartesian 3-D CINE imaging of the left ventricle with a nearly isotropic resolution of [Formula: see text] and a breath-hold duration of [Formula: see text]19 s against a standard stack of 2-D CINE slices acquired in multiple breath-holds. Validation is performed with data sets from ten healthy volunteers. A Cartesian sampling pattern based on the spiral phyllotaxis and a compressed sensing reconstruction method are proposed to allow 3-D CINE imaging with high acceleration factors. The fully integrated reconstruction uses multiple graphics processing units to speed up the reconstruction. The 2-D CINE and 3-D CINE are compared based on ventricular function parameters, contrast-to-noise ratio and edge sharpness measurements. Visual comparisons of corresponding short-axis slices of 2-D and 3-D CINE show an excellent match, while 3-D CINE also allows reformatting to other orientations. Ventricular function parameters do not significantly differ from values based on 2-D CINE imaging. Reconstruction times are below 4 min. We demonstrate single-breath-hold 3-D CINE imaging in volunteers and three example patient cases, which features fast reconstruction and allows reformatting to arbitrary orientations.

  18. Cine MRI: a new approach to the diagnosis of scapholunate dissociation.

    Science.gov (United States)

    Langner, I; Fischer, S; Eisenschenk, A; Langner, S

    2015-08-01

    To evaluate the feasibility of cine MRI for the detection of scapholunate dissociation (SLD) and to compare the sensitivity and specificity of cine MRI with those of cineradiography and arthroscopy. To evaluate feasibility, healthy subjects underwent cine MRI of the wrist. To evaluate sensitivity and specificity, patients with clinically suspected scapholunate ligament (SLL) injury after trauma to the wrist were prospectively included and underwent radiographic examination, cineradiography, and cine MRI. In 25 out of 38 patients, subsequent arthroscopy was performed. Results of cineradiography and cine MRI correlated with those of arthroscopy. Cine MRI was of diagnostic quality in all healthy subjects and patients with good interrater agreement. There was excellent correlation between cineradiography and cine MRI. Scapholunate distance differed significantly between healthy subjects and patients with scapholunate dissociation (p Cine MRI had 85% sensitivity and 90% specificity for the detection of SLD. Cine MRI of the wrist is a fast and reliable technique for the detection of SLD with diagnostic accuracy comparable to cineradiography. It can be easily implemented as a routine clinical MRI examination, facilitating diagnostic workup of patients with suspected SLD while avoiding radiation exposure.

  19. Left ventricular strain and its pattern estimated from cine CMR and validation with DENSE.

    Science.gov (United States)

    Gao, Hao; Allan, Andrew; McComb, Christie; Luo, Xiaoyu; Berry, Colin

    2014-07-07

    Measurement of local strain provides insight into the biomechanical significance of viable myocardium. We attempted to estimate myocardial strain from cine cardiovascular magnetic resonance (CMR) images by using a b-spline deformable image registration method. Three healthy volunteers and 41 patients with either recent or chronic myocardial infarction (MI) were studied at 1.5 Tesla with both cine and DENSE CMR. Regional circumferential and radial left ventricular strains were estimated from cine and DENSE acquisitions. In all healthy volunteers, there was no difference for peak circumferential strain (- 0.18 ± 0.04 versus - 0.18 ± 0.03, p = 0.76) between cine and DENSE CMR, however peak radial strain was overestimated from cine (0.84 ± 0.37 versus 0.49 ± 0.2, p cine were similar to the patterns from DENSE, including the strain evolution related to recovery time and strain patterns related to MI scar extent. Furthermore, cine-derived strain disclosed different strain patterns in MI and non-MI regions, and regions with transmural and non-transmural MI as DENSE. Although there were large variations with radial strain measurements from cine CMR images, useful circumferential strain information can be obtained from routine clinical CMR imaging. Cine strain analysis has potential to improve the diagnostic yield from routine CMR imaging in clinical practice.

  20. Cine MRI: a new approach to the diagnosis of scapholunate dissociation

    Energy Technology Data Exchange (ETDEWEB)

    Langner, I.; Eisenschenk, A. [University Medicine Greifswald, Division of Hand Surgery and Functional Microsurgery, Department of Trauma and Reconstructive Surgery, Greifswald (Germany); Fischer, S.; Langner, S. [University Medicine Greifswald, Institute for Diagnostic Radiology and Neuroradiology, Greifswald (Germany)

    2015-08-15

    To evaluate the feasibility of cine MRI for the detection of scapholunate dissociation (SLD) and to compare the sensitivity and specificity of cine MRI with those of cineradiography and arthroscopy. To evaluate feasibility, healthy subjects underwent cine MRI of the wrist. To evaluate sensitivity and specificity, patients with clinically suspected scapholunate ligament (SLL) injury after trauma to the wrist were prospectively included and underwent radiographic examination, cineradiography, and cine MRI. In 25 out of 38 patients, subsequent arthroscopy was performed. Results of cineradiography and cine MRI correlated with those of arthroscopy. Cine MRI was of diagnostic quality in all healthy subjects and patients with good interrater agreement. There was excellent correlation between cineradiography and cine MRI. Scapholunate distance differed significantly between healthy subjects and patients with scapholunate dissociation (p < 0.001), but not between imaging modalities in the patient group. Cine MRI had 85 % sensitivity and 90 % specificity for the detection of SLD. Cine MRI of the wrist is a fast and reliable technique for the detection of SLD with diagnostic accuracy comparable to cineradiography. It can be easily implemented as a routine clinical MRI examination, facilitating diagnostic workup of patients with suspected SLD while avoiding radiation exposure. (orig.)

  1. Spirometer-controlled cine magnetic resonance imaging to diagnose tracheobronchomalacia in pediatric patients

    DEFF Research Database (Denmark)

    Ciet, Pierluigi; Wielopolski, Piotr; Manniesing, Rashindra

    2014-01-01

    is restricted by ionizing radiation. Our aim was to evaluate the feasibility of spirometer-controlled cine-MRI as alternative to cine-CT in a retrospective study.12 children (mean 12 years, range 7-17), suspected to have TBM, underwent cine-MRI. Static scans were acquired at end-inspiration and expiration......Tracheobronchomalacia (TBM) is defined as an excessive collapse of the intrathoracic trachea. Bronchoscopy is the gold standard to diagnose TBM, but bronchoscopy has major disadvantages, such as general anaesthesia. Cine-CT is a non-invasive alternative to diagnose TBM, but its use in children...

  2. Evaluation of cine CT in the investigation of patients with recurrent symptoms following coronary bypass grafting

    International Nuclear Information System (INIS)

    Rees, M.R.; MacMillan, R.M.; Eldredge, W.J.; Maranhao, V.

    1986-01-01

    Between May 1985 and July 1986, cine-CT was performed in 84 consecutive patients to evaluate graft patency and ventricular function. Only three studies (4%) were unsatisfactory. Compared to catheterization, an accuracy of 94% was found for graft patency, with a significant correlation for ejection fraction (r = .93). Close agreement with angiography was demonstrated for cine-CT detection of left ventricular wall motion abnormalities and graft flow. Compared to surgical placement, cine-CT localization of grafts in major coronary territories was 98% accurate. Despite a significant learning curve in study interpretation, cine-CT can be used in place of catheterization in the evaluation of symptomatic postgraft patients

  3. LA RECEPCIÓN DEL CINE MEXICANO Y LAS CONSTRUCCIONES DE GÉNERO. ¿FORMACIÓN DE UNA AUDIENCIA NACIONAL?

    Directory of Open Access Journals (Sweden)

    Patricia Torres San Martín

    2008-01-01

    Full Text Available Este artículo parte del análisis del cine nacional no como consumo sino como una práctica de cultura que produce y reproduce significados, en la recepción del cine como un "proceso de interacción, resignificación y negociación" de estos significados y en la audiencia como constructo y sujeto de una comunidad interpretativa. Me centraré en el análisis del material empírico que realicé con varios segmentos de audiencia de Guadalajara y dos películas mexicanas contemporáneas que marcaron un hito en la historia de la cinematografía nacional: Amores perros (2000, de Alejandro González Iñárritu, e ¡Y tu mamá también! (2001, de Alfonso Cuarón, para abrir una discusión de cómo la categoría analítica y referencial de género marcó las diferencias en la cinevidencia y producción discursiva de la audiencia participante.

  4. Pequeña historia de un proyecto utópico: el Movimiento del Nuevo Cine y Video Boliviano y su Revista Imagen

    Directory of Open Access Journals (Sweden)

    María Gabriela Aimaretti

    2018-01-01

    Full Text Available En el marco de una investigación más amplia que releva, describe y analiza las prácticas de producción audiovisual en La Paz, Bolivia, entre 1978 y 1989, el presente trabajo se centra en historiar el proyecto editorial Imagen: una revista de cine que publicó el Movimiento del Nuevo Cine y Video Boliviano durante la segunda mitad de la década del ochenta. Sin tradición local en lo que refiere a publicaciones dedicadas al cine, Imagen fue una iniciativa autogestiva y autofinanciada, que funcionó con una frecuencia y formato variable, y sirvió como foro de discusión sobre temas específicos del quehacer local, vehículo de difusión de actividades del Movimiento, microespacio de formación, medio de circulación de convocatorias y concursos, y herramienta de articulación entre distintas propuestas. El trabajo explica su devenir histórico, describe sus caracteres generales y perfil editorial, da cuenta de los actores intervinientes y sus formas de organización, y señala las condiciones de posibilidad, alcances y limitaciones del proyecto.

  5. Actrices del cine mudo que no superaron la barrera del sonoro

    Directory of Open Access Journals (Sweden)

    Rosa María Ballesteros García

    2016-10-01

    Full Text Available El presente artículo tiene como objetivo recuperar una serie de actrices, ídolos de la etapa del cine mudo, que no lograron mantenerse al iniciarse el proceso al hablado. Ponemos el objetivo en algunas de las actrices más representativas a quienes el progreso técnico iba a condenar al ostracismo al no adecuarse su voz (aún sin la muleta del doblaje a los inevitables cambios estructurales y auditivos. En los años en que se produce esta transición (último tercio de 1920 y primeros años de 1930 se produjo un general “pánico” entre el colectivo, justificado por cierto, pues a partir de entonces fueron de estricta obligación las “pruebas de voz”, por lo que buena parte de estas glorias mudas vieron frustradas sus carreras. Ídolos con pies de barro, juguetes a merced del marketing y de la voracidad de los productores, sus nombres fueron difuminándose, tan rápido como habían sido encumbrados, en una involuntaria huida plagada de fracasos, de adiciones y de varios casos de suicidios.

  6. Ante la brecha digital: El cine comunitariocomo herramienta de educación

    Directory of Open Access Journals (Sweden)

    Adriana Kong Montoya

    2016-01-01

    Full Text Available El acceso a las Tecnologías de la Información y Comunicación (TIC es limitado por la brecha digital. Se genera una desigualdad de acceso a la información que influye en el desarrollo de la educación. Se habla también de una brecha cognitiva que interviene en diferentes manifestaciones y dinámicas sociales. Las herramientas de comunicación en la sociedad se ven limitadas a algunos segmentos reducidos de la población. La producción audiovisual se limita a algunos usuarios y esto genera productos que no reflejan a una comunidad en su totalidad. El cine comunitario posee las características que favorecen el desarrollo de la identidad, la visibilizarían de problemas y el acceso de las comunidades a herramientas de las TIC. Esta forma de producción surge como respuesta de una responsabilidad social y funciona como herramienta alternativa para combatir las sociedades marginadas por la brecha digital.

  7. Estereotipos y roles sociales de la mujer en el cine deportivo

    Directory of Open Access Journals (Sweden)

    Joaquín PIEDRA DE LA CUADRA

    2011-07-01

    Full Text Available Este documento profundiza en el rol y cualidades asociadas a la mujer en el cine deportivo de la primera década del siglo XXI, objeto de estudio poco habitual en el segmento de la investigación cinematográfica. Para ello, se determinó una muestra compuesta por 74 películas, seleccionadas a través de un muestreo no probabilístico por cuotas y mediante un diseño de investigación de tipo descriptivo, siendo el análisis de contenido el instrumento elegido para llevarlo a cabo. Los resultados arrojaron que se reflejaba con fidelidad el modelo imperante en la actualidad, así como el canon moderno que se atribuye al sexo femenino, lo cual debería cuestionar el peso que supone la industria cinematográfica como instrumento de normalización en el tratamiento de la mujer.

  8. New target device and special pillow for cine mode MRI

    International Nuclear Information System (INIS)

    Nishida, Yasuhiro; Murata, Toyotaka.

    1997-01-01

    To carry out cine mode MRI more easily and accurate, we developed a new target device for use with a special pillow. The device consists of a control box, light source and target plate. Red light emission diodes (LED) served on the light source and were connected to the target plate with the light guides each 1 mm in diameter. The light guides were inserted into holes in the target plate. Each target was horizontally and vertically placed at increments of 10 degrees and the maximal angle of 40 degrees. The new target can be correctly gazed at even by elderly patients. By the special pillow, the head of a patients can be easily and quickly fixed in position during examination following removal of air the pillow by vacuum pump. By this target device and pillow, cine mode MRI can be easily carried out on any subject and these should find a great appreciation in ophthalmology. (author)

  9. Vector velocimeter

    DEFF Research Database (Denmark)

    2012-01-01

    The present invention relates to a compact, reliable and low-cost vector velocimeter for example for determining velocities of particles suspended in a gas or fluid flow, or for determining velocity, displacement, rotation, or vibration of a solid surface, the vector velocimeter comprising a laser...

  10. Holistic segmentation of the lung in cine MRI.

    Science.gov (United States)

    Kovacs, William; Hsieh, Nathan; Roth, Holger; Nnamdi-Emeratom, Chioma; Bandettini, W Patricia; Arai, Andrew; Mankodi, Ami; Summers, Ronald M; Yao, Jianhua

    2017-10-01

    Duchenne muscular dystrophy (DMD) is a childhood-onset neuromuscular disease that results in the degeneration of muscle, starting in the extremities, before progressing to more vital areas, such as the lungs. Respiratory failure and pneumonia due to respiratory muscle weakness lead to hospitalization and early mortality. However, tracking the disease in this region can be difficult, as current methods are based on breathing tests and are incapable of distinguishing between muscle involvements. Cine MRI scans give insight into respiratory muscle movements, but the images suffer due to low spatial resolution and poor signal-to-noise ratio. Thus, a robust lung segmentation method is required for accurate analysis of the lung and respiratory muscle movement. We deployed a deep learning approach that utilizes sequence-specific prior information to assist the segmentation of lung in cine MRI. More specifically, we adopt a holistically nested network to conduct image-to-image holistic training and prediction. One frame of the cine MRI is used in the training and applied to the remainder of the sequence ([Formula: see text] frames). We applied this method to cine MRIs of the lung in the axial, sagittal, and coronal planes. Characteristic lung motion patterns during the breathing cycle were then derived from the segmentations and used for diagnosis. Our data set consisted of 31 young boys, age [Formula: see text] years, 15 of whom suffered from DMD. The remaining 16 subjects were age-matched healthy volunteers. For validation, slices from inspiratory and expiratory cycles were manually segmented and compared with results obtained from our method. The Dice similarity coefficient for the deep learning-based method was [Formula: see text] for the sagittal view, [Formula: see text] for the axial view, and [Formula: see text] for the coronal view. The holistic neural network approach was compared with an approach using Demon's registration and showed superior performance. These

  11. La memoria del cine como extensión de la memoria cultural

    Directory of Open Access Journals (Sweden)

    Patricia Torres San Martín

    2006-01-01

    Full Text Available Me interesa explicar cómo se construye la memoria cinematográfica a través de las emociones, sentimientos y relatos relacionados con el imaginario colectivo, y cómo han marcado las imágenes fílmicas la vida individual y social de su audiencia tapatía. El enfoque teórico que sustenta este texto, la "corriente crítica de las audiencias" (que se distingue, entre otras cosas, por atender el estudio de los usos y las gratificaciones, supone de manera particular analizar "los valores de las personas, sus intereses [...], sus asociaciones [...] y sus papeles sociales, ya que las personas modelan selectivamente lo que ven y lo que oyen" (Jensen, 1996:75. Fue prioridad identificar algunas categorías observables presentes en el proceso de ecepción/interacción: ¿cómo se lee el texto fílmico?, ¿qué parte de éste se lee?, ¿a través de qué relatos las audiencias hacen suyas las propuestas de sentido?, esto último a fin de poder conectar el relato/discurso con la realidad de las audiencias y su memoria histórica.

  12. Physiologic AV valvular insufficiency in cine MR imaging

    Energy Technology Data Exchange (ETDEWEB)

    Jang, Yoon Hyung; Kang, Eun Joo; Baik, Seung Kug; Ahn, Woo Hyun; Choi, Han Yong; Kim, Bong Gi [Wallace Memorial Baptist Hospital, Pusan (Korea, Republic of)

    1994-05-15

    To give a help in the interpretation of cardiac cine-MR examination, the extent, shape, and timing of appearance of signal void regions near atrioventricular(A-V) valve prospectively evaluate in the healthy population. Using an axial gradient-echo technique with small flip angle, repetition time(TR) of 36 msec and echo time(TE) of 22 msec, 20 volunteers without known valvular abnormalities undertook cardiac cine-MR imaging including atrioventricular valve areas. Transient signal void was observed within the near the tricuspid(13/20 = 65%) and mitral valves(9/20 = 45%), respectively, which is so called {sup p}hysioloic atrioventricular valvular insufficiency{sup .} Eight subjects revealed the signal void areas near both tricuspid and mitral valves but, 5 subjects did not show any evidence of physiologic insufficiency. This physiologic condition does not extend more than 1 cm proximal to A-V valve plane and is generally observed only during early systole. Its morphology is semilunar or triangular configuration with the base to the valve plane in most cases of normal tricuspid insufficiency and small globular appearance in most cases of normal mitral insufficiency. Awareness of normal signal void areas near the A-V valve and their characteristics is critical in the interpretation of cardiac cine MR examinations and maybe helpful in the study of the normal cardiac physiology.

  13. Physiologic AV valvular insufficiency in cine MR imaging

    International Nuclear Information System (INIS)

    Jang, Yoon Hyung; Kang, Eun Joo; Baik, Seung Kug; Ahn, Woo Hyun; Choi, Han Yong; Kim, Bong Gi

    1994-01-01

    To give a help in the interpretation of cardiac cine-MR examination, the extent, shape, and timing of appearance of signal void regions near atrioventricular(A-V) valve prospectively evaluate in the healthy population. Using an axial gradient-echo technique with small flip angle, repetition time(TR) of 36 msec and echo time(TE) of 22 msec, 20 volunteers without known valvular abnormalities undertook cardiac cine-MR imaging including atrioventricular valve areas. Transient signal void was observed within the near the tricuspid(13/20 = 65%) and mitral valves(9/20 = 45%), respectively, which is so called p hysioloic atrioventricular valvular insufficiency . Eight subjects revealed the signal void areas near both tricuspid and mitral valves but, 5 subjects did not show any evidence of physiologic insufficiency. This physiologic condition does not extend more than 1 cm proximal to A-V valve plane and is generally observed only during early systole. Its morphology is semilunar or triangular configuration with the base to the valve plane in most cases of normal tricuspid insufficiency and small globular appearance in most cases of normal mitral insufficiency. Awareness of normal signal void areas near the A-V valve and their characteristics is critical in the interpretation of cardiac cine MR examinations and maybe helpful in the study of the normal cardiac physiology

  14. Evaluation of aortic distensibility using cine MR imaging

    International Nuclear Information System (INIS)

    Takahashi, Masashi; Murata, Kiyoshi; Mori, Masayuki

    1992-01-01

    Regional aortic distensibility was measured noninvasively using cine MR imaging to determine whether it correlates with aging or risk of coronary artery disease (CAD). Twenty-two patients with CAD confirmed by angiography and 33 without CAD underwent cine MR imaging. Thirty-two sequential images were obtained in one cardiac cycle. The cross sectional area of the descending thoracic aorta was measured on both diastolic (A) and systolic (A') images. Aortic distensibility (A.D.) was calculated from the following equation: A.D.=(A'-A)/A/ΔP.(ΔP represents pulse pressure). Results of a simple regression analysis showed that decreased regional aortic distensibility was significantly correlated with the age of the patients (r=-0.762, p<0.005). In addition, the parameter was lower in patients with CAD than those without CAD (p<0.05). In conclusion, regional aortic distensibility derived from cine MR imaging is a useful parameter to evaluate not only aging but also pathological atherosclerosis of the aorta. In addition, this parameter might have some potential to evaluate the prediction of CAD in patients with normal serum cholesterol. (author)

  15. Evaluation of mitral regurgitation by cine magnetic resonance imaging

    International Nuclear Information System (INIS)

    Kobayashi, Shiro; Kishi, Naohiro; Kumai, Toshihiko

    1993-01-01

    Valvular regurgitation can be detected as a region of signal loss ('flow void') by cardiac cine magnetic resonance (MR) imaging. Cine MR images of 36 patients with mitral regurgitation caused by mitral valve prolapse (MVP) and non-MVP were evaluated and compared with color Doppler flow images. The direction, distance, area and timing of flow void were detected in all patients in several different planes at mitral level with a 0.5 Tesla superconducting magnet by an ECG-gated fast field echo technique. In 23 of the 36 patients contiguous multiple transaxial images were also obtained to calculate the volumes of flow void and the left atrium. The direction of flow void tended to deviate to the opposite side within the left atrium in MVP. The frame showing maximal area of flow void was demonstrated in mid-systole in 24 of the 36 patients (67%). The distance, area and volume of flow void were concordant with the grade from color Doppler flow images. The volumes of flow void and the left atrium correlated (n=19, r=0.74, p<0.05) in MVP. In conclusion, cine MR images in several different planes or contiguous multiple slices are useful in determining spatial orientation and the extent and timing of mitral regurgitation noninvasively. Furthermore, calculation of the volume of flow void enables the assessment of the semiquantitation of mitral regurgitation. (author)

  16. Tradición y modernidad en la arquitectura del espectáculo : los teatros-cine en Galicia

    Directory of Open Access Journals (Sweden)

    Jesús Ángel Sánchez García

    1994-01-01

    Full Text Available El interés prestado en nuestro país a la arquitectura del espectáculo, y en concreto a la cinematográfica, puede calificarse hasta ahora de escaso, precisamente en el contexto de unos años en los que la crisis del cine ha provocado la desaparición de numerosas salas. Esta situación contrasta con la de otros paises europeos donde el reconocimiento del valor como patrimonio cultural y arquitectónico de estos edificios, abanderado desde los años 60 por los anglosajones, ha posibilitado importantes estudios e iniciativas tendentes a su conservación. En esta ocasión nuestra intención es realizar una breve aproximación a un tipo concreto de recinto de espectáculos característico de las primeras décadas de nuestro siglo, el teatro-cine, a través de los ejemplos más destacados proyectados y construidos en Galicia.

  17. La intertextualidad en el cine de Álex de la Iglesia:El caso del cómic

    Directory of Open Access Journals (Sweden)

    Neftalí Pérez Franco

    2010-10-01

    Full Text Available Este artículo repasa la influencia del tebeo en las películas del director vasco, Alex de la Iglesia, cuyas primeras obras artísticas se deben a su condición de joven autor de historietas. El cine de este cineasta está marcado por claras reminiscencias provenientes de las viñetas: los superhéroes patéticos de Acción mutante se mueven por un contexto futurista muy del cómic de ciencia ficción; el humor estereotipado y los personajes grotescos del tebeo de la editorial Bruguera inundan todas sus comedias; o también son destacables los diversos homenajes narrativos o estéticos a la escuela franco-belga de Hergé y Goscinny. Esta fuerte influencia recorre toda su filmografía desde la mencionada ópera prima Acción mutante, hasta Crimen Ferpecto, pasando por títulos como El día de la bestia, Perdita Durango, Muertos de risa o La comunidad, hasta convertirse en un autor abanderado del fenómeno freak que marca tendencia en el cine español.

  18. Alfasecuencialización: la enseñanza del cine en la era del audiovisual Sequential literacy: the teaching of cinema in the age of audio-visual speech

    Directory of Open Access Journals (Sweden)

    José Antonio Palao Errando

    2007-10-01

    Full Text Available En la llamada «sociedad de la información» los estudios sobre cine se han visto diluidos en el abordaje pragmático y tecnológico del discurso audiovisual, así como la propia fruición del cine se ha visto atrapada en la red del DVD y del hipertexto. El propio cine reacciona ante ello a través de estructuras narrativas complejas que lo alejan del discurso audiovisual estándar. La función de los estudios sobre cine y de su enseñanza universitaria debe ser la reintroducción del sujeto rechazado del saber informativo por medio de la interpretación del texto fílmico. In the so called «information society», film studies have been diluted in the pragmatic and technological approaching of the audiovisual speech, as well as the own fruition of the cinema has been caught in the net of DVD and hypertext. The cinema itself reacts in the face of it through complex narrative structures that take it away from the standard audio-visual speech. The function of film studies at the university education should be the reintroduction of the rejected subject of the informative knowledge by means of the interpretation of film text.

  19. Two-dimensional sonographic cine imaging improves confidence in the initial evaluation of the fetal heart.

    Science.gov (United States)

    Poole, Patricia Sims; Chung, Romy; Lacoursiere, Yvette; Palmieri, Carolina Rossi; Hull, Andrew; Engelkemier, Dawn; Rochelle, Michele; Trivedi, Neha; Pretorius, Dolores H

    2013-06-01

    Initial screening sonography of the fetal heart with static images is often inadequate, resulting in repeated imaging or failure to detect abnormalities. We hypothesized that the addition of short cine clips would reduce the need for repeated imaging. Two-dimensional (2D) static sonograms and short 2D cine clips of the 4-chamber view and left and right ventricular outflow tracts were obtained from 342 patients with gestational ages of greater than 16 weeks. A diagnostic radiologist and a perinatologist retrospectively reviewed the static and cine images independently and graded them as normal, abnormal, or suboptimal. A statistically significant increase in the number of structures called normal was seen when 2D cine clips were added to static imaging for both observers (P cine images versus 61.9% with static images alone, whereas the perinatologist recorded 68.1% as normal versus 58.8%, respectively. The radiologist called 77.8% of structures normal with cine images only versus 61.9% with static images only (P cine images alone (38.9%) versus static images alone (58.8%). The use of cine loops alone resulted in no significant increase in the ability to clear the heart as normal. The maternal body mass index was inversely associated with the ability to clear structures when 2D cine images were added to static images (P cine clips to standard 2D static imaging of the fetal heart significantly improves the number of structures cleared as normal. Two-dimensional cine clips are easily obtained, add little time to a study, and require minimal archival space.

  20. Las personas con discapacidad en el cine

    OpenAIRE

    Monjas, M.I.; et al.

    2005-01-01

    Una forma de comprobar cómo se conceptualiza a las personas con discapacidad es analizar la imagen que de ellas se refleja en distintos soportes como pueden ser libros, prensa y medios de comunicación. El presente trabajo se centra en el estudio de películas cuyos protagonistas tienen alguna discapacidad. A tal efecto, y después de revisar una parte de la producción cinematográfica, se han seleccionado cincuenta películas para proceder a su análisis. Los resultados obtenidos evidencian la esc...

  1. Cloning vector

    Science.gov (United States)

    Guilfoyle, Richard A.; Smith, Lloyd M.

    1994-01-01

    A vector comprising a filamentous phage sequence containing a first copy of filamentous phage gene X and other sequences necessary for the phage to propagate is disclosed. The vector also contains a second copy of filamentous phage gene X downstream from a promoter capable of promoting transcription in a bacterial host. In a preferred form of the present invention, the filamentous phage is M13 and the vector additionally includes a restriction endonuclease site located in such a manner as to substantially inactivate the second gene X when a DNA sequence is inserted into the restriction site.

  2. Cloning vector

    Science.gov (United States)

    Guilfoyle, R.A.; Smith, L.M.

    1994-12-27

    A vector comprising a filamentous phage sequence containing a first copy of filamentous phage gene X and other sequences necessary for the phage to propagate is disclosed. The vector also contains a second copy of filamentous phage gene X downstream from a promoter capable of promoting transcription in a bacterial host. In a preferred form of the present invention, the filamentous phage is M13 and the vector additionally includes a restriction endonuclease site located in such a manner as to substantially inactivate the second gene X when a DNA sequence is inserted into the restriction site. 2 figures.

  3. High frame rate retrospectively triggered Cine MRI for assessment of murine diastolic function

    NARCIS (Netherlands)

    Coolen, Bram F.; Abdurrachim, Desiree; Motaal, Abdallah G.; Nicolay, Klaas; Prompers, Jeanine J.; Strijkers, Gustav J.

    2013-01-01

    To assess left ventricular (LV) diastolic function in mice with Cine MRI, a high frame rate (>60 frames per cardiac cycle) is required. For conventional electrocardiography-triggered Cine MRI, the frame rate is inversely proportional to the pulse repetition time (TR). However, TR cannot be lowered

  4. Simultaneous static and cine nonenhanced MR angiography using radial sampling and highly constrained back projection reconstruction.

    Science.gov (United States)

    Koktzoglou, Ioannis; Mistretta, Charles A; Giri, Shivraman; Dunkle, Eugene E; Amin, Parag; Edelman, Robert R

    2014-10-01

    To describe a pulse sequence for simultaneous static and cine nonenhanced magnetic resonance angiography (NEMRA) of the peripheral arteries. The peripheral arteries of 10 volunteers and 6 patients with peripheral arterial disease (PAD) were imaged with the proposed cine NEMRA sequence on a 1.5 Tesla (T) system. The impact of multi-shot imaging and highly constrained back projection (HYPR) reconstruction was examined. The propagation rate of signal along the length of the arterial tree in the cine nonenhanced MR angiograms was quantified. The cine NEMRA sequence simultaneously provided a static MR angiogram showing vascular anatomy as well as a cine display of arterial pulse wave propagation along the entire length of the peripheral arteries. Multi-shot cine NEMRA improved temporal resolution and reduced image artifacts. HYPR reconstruction improved image quality when temporal reconstruction footprints shorter than 100 ms were used (P cine NEMRA was slower in patients with PAD than in volunteers. Simultaneous static and cine NEMRA of the peripheral arteries is feasible. Multi-shot acquisition and HYPR reconstruction can be used to improve arterial conspicuity and temporal resolution. Copyright © 2013 Wiley Periodicals, Inc.

  5. High frame rate retrospectively triggered Cine MRI for assessment of murine diastolic function.

    Science.gov (United States)

    Coolen, Bram F; Abdurrachim, Desiree; Motaal, Abdallah G; Nicolay, Klaas; Prompers, Jeanine J; Strijkers, Gustav J

    2013-03-01

    To assess left ventricular (LV) diastolic function in mice with Cine MRI, a high frame rate (>60 frames per cardiac cycle) is required. For conventional electrocardiography-triggered Cine MRI, the frame rate is inversely proportional to the pulse repetition time (TR). However, TR cannot be lowered at will to increase the frame rate because of gradient hardware, spatial resolution, and signal-to-noise limitations. To overcome these limitations associated with electrocardiography-triggered Cine MRI, in this paper, we introduce a retrospectively triggered Cine MRI protocol capable of producing high-resolution high frame rate Cine MRI of the mouse heart for addressing left ventricular diastolic function. Simulations were performed to investigate the influence of MRI sequence parameters and the k-space filling trajectory in relation to the desired number of frames per cardiac cycle. An optimized protocol was applied in vivo and compared with electrocardiography-triggered Cine for which a high-frame rate could only be achieved by several interleaved acquisitions. Retrospective high frame rate Cine MRI proved superior to the interleaved electrocardiography-triggered protocols. High spatial-resolution Cine movies with frames rates up to 80 frames per cardiac cycle were obtained in 25 min. Analysis of left ventricular filling rate curves allowed accurate determination of early and late filling rates and revealed subtle impairments in left ventricular diastolic function of diabetic mice in comparison with nondiabetic mice. Copyright © 2012 Wiley Periodicals, Inc.

  6. Cine-CT: A new technique in X-ray computed tomography

    International Nuclear Information System (INIS)

    Jaschke, W.; Georgi, M.; Lipton, M.J.; Gould, R.G.

    1988-01-01

    The 'Cine-CT' belongs to a new generation of CT devices permitting not only diagnostics on a morphological basis but also function studies. By means of Cine-CT's electron beam technique, image frequencies of up to 17 images per second and exposure times of 50 msec are possible. (orig.) [de

  7. Assessment of left ventricular hemodynamics by Gd-DTPA enhanced high speed cine MRI

    International Nuclear Information System (INIS)

    Matsumura, Kentaro; Nakase, Emiko; Kawai, Ichiro

    1992-01-01

    To assess the validity of Gd-DTPA enhanced high speed cine MRI in left ventricular (LV) volumes and ejection fraction (EF), high speed cine MRI was compared with intra-venous digital subtraction left ventriculography (IV-DSA) in 14 patients. All patients underwent conventional cine MRI and Gd-DTPA enhanced high speed MRI, simultaneously. The pulse sequences of high speed MRI were TR 8 ms (TR 6 ms plus rewind pulse 2 ms), TE 3.2 ms, matrix 128, phase encode 8 or 6 and NEX 1. Comparison with LV-volume showed a high correlation (y = 0.854x + 1,699, r = 0.985) between high speed cine MRI and VI-DSA. To make left ventricular volume curve by area-length method in cine MRI, manual tracing of LV-cavity was more difficult in conventional cine MRI-method than enhanced high speed cine MRI-method. In conclusion, first pass-Gd-DTPA enhanced high speed cine MRI, using the horizontal long axis approach and the multiphase study, is a highly, accurate reproducible method of evaluating LV-volumetry. (author)

  8. Usefulness of true FISP cine MR imaging in patients with poor cardiac function

    Energy Technology Data Exchange (ETDEWEB)

    Sakuma, Toshiharu; Yamada, Naoaki; Motooka, Makoto; Enomoto, Naoyuki; Maeshima, Isamu; Matsuda, Kazuhide; Urayama, Shinichi; Ikeo, Miki [National Cardiovascular Center, Suita, Osaka (Japan)

    2002-01-01

    This study was done to assess the value of True FISP cine in patients with poor cardiac function. True FISP cine and FLASH cine imaging were performed on a 1.5 T machine. Both short axis and horizontal long axis imaging sections were used. The imaging sections used a Matrix (120 x 128), FOV (24 x 32 cm), and had a slice thickness of 8 mm. The imaging time for True FISP cine was 8 heart beats and 17 heart beats for FLASH cine. The contrast-to-noise ratio between the blood and myocardium (CNR) was measured at enddiastole and endsystole. The subjects in the study were 10 healty volunteers (average age 26.5{+-}3.2 years) and 12 patients with hypofunction (average age 53.9{+-}13.2 years). In the volunteers, the CNR of the short axis imaging was similar in both True FISP (24.6{+-}3.7) and FLASH (23.4{+-}5.9). In the patients with poor cardiac function however, the CNR of True FISP was larger than FLASH in both the short and long axis. In the short axis (22.7{+-}6.1 vs. 17.9{+-}5.3, P<0.01) and in the long axis (17.4{+-}4.3 vs. 9.3{+-}4.0, P<0.01). We conclude that True FISP cine has a higher contrast in a shorter imaging time than FLASH cine. True FISP cine is especially useful in patients with poor cardiac function. (author)

  9. Cine computed tomography for diagnosis of superior vena cava obstruction following the mustard operation

    International Nuclear Information System (INIS)

    Matherne, G.P.; Atkins, D.L.; Frey, E.E.; Smith, W.L.

    1987-01-01

    Superior vena caval obstruction is a well described complication following Mustard's repair for transposition of the great arteries. We report a case of a 6-year-old child with superior vena cava obstruction correctly diagnosed by Cine-CT. The advantages of imaging with Cine-CT for this complication are discussed. (orig.)

  10. Imagen fílmica del lesbianismo a través de los personajes protagonistas en el cine español

    OpenAIRE

    Pelayo García, Irene

    2010-01-01

    El objeto de estudio de este trabajo es la imagen que el cine español ofrece del lesbianismo a través de los personajes protagonistas lésbicos. Se ha optado por la representación del lesbianismo y no de la homosexualidad en general, como ya de ha comentado, por el hecho de que históricamente la homosexualidad masculina y la femenina han tenido evoluciones muy distintas, aunque bien es cierto que comparten importantes elementos comunes. Una de las mayores diferencias entre gays y lesbianas ...

  11. Las consecuencias jurídicas del delito y el cine: un acercamiento a la resocialización en el nuevo siglo

    Directory of Open Access Journals (Sweden)

    José Manuel Ríos Corbacho

    2012-01-01

    Full Text Available Las nuevas tecnologías, los elementos audiovisuales y más concretamente el cine, le dan un impulso importante al aprendizaje del alumnado, por tal razón el presente trabajo pretende realizar un análisis y una aproximación, desde el punto de vista dogmático, a determinadas películas en las que se visualiza la finalidad de las penas. Esto tiene como fin que el alumno adquiera los conocimientos necesarios que le permitan dominar el derecho penal en general y la teoría de la pena, en particular.

  12. Interculturalidad, cine y enseñanza de español: propuesta didáctica para el visionado de películas en la Secundaria

    Directory of Open Access Journals (Sweden)

    Santiago Bretanha Freitas

    2016-12-01

    Full Text Available El presente trabajo tiene por objetivo trazar un panorama de las principales reflexiones acerca de la didáctica intercultural para el trabajo con cine en las clases de español (E, bien como, en segundo plano, esbozar una propuesta didáctica para el visionado de películas en las clases de lengua española de la enseñanza secundaria, tomando por referencia el enfoque por tareas y la enseñanza de E como Segunda Lengua (E/L2. Para tanto, nos hemos fundamentado teóricamente en la perspectiva de la interculturalidad crítica y de la didáctica intercultural (CANDAU, 2012; WALSH, 2010; STREET, 2007, en los referenciales sobre los Temas Transversales (BRASIL, 1997, en las investigaciones sobre el abordaje de las relaciones de género, de sexualidad y de cuerpo en la escuela (LOURO, 1996, 2000, 2004, 2010, bien como en los estudios acerca del trabajo con cine en el aula de idiomas (AMBRÓS; BREU, 2007; MANZANERA, 2013. Dicha propuesta está organizada en un proyecto de enseñanza de treinta horas dirigido al alumnado de los Cursos Técnico Integrado en edificaciones del IFSul - campus Yaguarón (RS/BR, frontera con Río Branco (CL/UY; la propuesta está pensada para el nivel B1.

  13. Equivalent Vectors

    Science.gov (United States)

    Levine, Robert

    2004-01-01

    The cross-product is a mathematical operation that is performed between two 3-dimensional vectors. The result is a vector that is orthogonal or perpendicular to both of them. Learning about this for the first time while taking Calculus-III, the class was taught that if AxB = AxC, it does not necessarily follow that B = C. This seemed baffling. The…

  14. The diagnostic value of cine-MR imaging in diseases of great vessels

    International Nuclear Information System (INIS)

    Sasaki, Shigeyuki; Yoshida, Hideaki; Matsui, Yoshiro; Sakuma, Makoto; Yasuda, Keihide; Tanabe, Tatsuzo; Chouji, H.

    1990-01-01

    The diagnostic value of cine magnetic resonance imaging (cine-MRI) was evaluated in 10 patients with diseases of great vessels. The parameters necessary to decide the appropriate treatment, such as presence and extension of intimal flap, DeBakey type classification, identification of the entry, differentiation between true and false lumen, and between thrombosis and slow flow were demonstrated in all patients with dissecting aortic aneurysm. However, abdominal aortic branches could not be demonstrated enough by cine-MRI, therefore conventional AOG was necessary to choose the operative procedure in these cases. In patients with thoracic aortic aneurysm (TAA), cine-MRI was valuable in demonstrating both blood flow and thrombus in the lumen of aneurysm, and AOG was thought to be unnecessary in most cases. Cine-MRI is a promising new technique for the evaluation of diseases of great vessels. (author)

  15. Análisis de recepción de cine en Bogotá: Identidades culturales e Imaginarios colectivos

    Directory of Open Access Journals (Sweden)

    Gonzalo Rivera M.

    1994-09-01

    Full Text Available Este artículo se origina en el primer módulo de una línea de investigación pensada para avanzar en los estudios sobre comunicación/cultura. El proyecto intenta acercarse a la desconstrucción de objetos culturales (el cine en este caso con una mirada conceptual nueva y metodologías plurales, adoptando como horizonte de pensamiento lo simbólico-imaginario, instancia crucial del problema cultural. Aunque los resultados y el análisis de este primer objeto no lleguen a conclusiones totalmente acabadas, el lector atento encontrará un universo sugerente de resemantizaciones y formas innovadoras de senti-pensar la significación.

  16. Imaginarios posapocalípticos en el cine actual: entre la vuelta al origen y el fin de la humanidad

    Directory of Open Access Journals (Sweden)

    Gérard Imbert

    2014-02-01

    Full Text Available En el cine actual, los imaginarios proyectados en el futuro reflejan las inquietudes de hoy. Surgen películas que se sitúan en un después del apocalipsis o que lo anticipan, que expresan un «imaginario del fin», como he llamado a estos fantasmas de muerte que pesan sobre la posmodernidad. Hoy, la amenaza, el peligro de desaparición, ya no viene de fuera (invasiones, extraterrestres, bestias de otros mundos, catástrofes naturales, sino de dentro, de la propia sociedad. A partir de películas recientemente estrenadas, se analizarála emergencia de estos imaginarios: desde la vuelta regresiva al origen hasta el fantasma del fi n de la humanidad.

  17. Cine, fascismo y propaganda. Una aproximación histórica al Estado Novo portugués

    Directory of Open Access Journals (Sweden)

    Alberto Pena-Rodríguez

    2012-01-01

    Full Text Available La dictadura portuguesa de António de Oliveira Salazar utilizó el cine como un instrumento de propaganda eficaz para consolidar el régimen del Estado Novo durante los años treinta. El Secretariado de Propaganda Nacional y otras estructuras para el control de la comunicación pública de la época jugaron un importante papel para persuadir a la sociedad portuguesa y proyectar hacia el exterior una imagen benévola del salazarismo. Durante el período de la guerra civil española, la propaganda cinematográfica lusa intensificó su campaña contra el comunismo y a favor del fascismo ibérico.

  18. Vectores recombinantes basados en el virus modificado de ankara (MVA), con deleción en el gen C6L, como vacunas contra el VIH/SIDA y otras enfermedades

    OpenAIRE

    García-Arriaza, J.; Gómez, Carmen E.; Esteban, Mariano

    2011-01-01

    [ES] La presente invención engloba dentro de los campos de la biología molecular y de la biotecnología. Especificamente se refiere a virus recombinantes basados en el virus modificado de Ankara (MVA) que expresan los antigenos gp120 y Gag-Pol-Nef del virus de la inmunodeficienciahumana (VIH-1) de subtipo B (MVA-B), sobre los que see ha delecionado el gen de vaccinia C6L, y que han sido diseñados para utilizarse como vacunas contra el VIH/SIDA y otras enfermedades.

  19. Vectores recombinantes basados en el virus modificado de Ankara (MVA), con deleción en el gen C6L, como vacunas contra el VIH/SIDA y otras enfermedades

    OpenAIRE

    García-Arriaza, J.; Gómez, Carmen E.; Esteban, Mariano

    2011-01-01

    La presente invención se engloba dentro de los campos de la biología molecular y de la biotecnología. Específicamente se refiere a virus recombinantes basados en el virus modificado de Ankara (MVA) que expresan los antígenos gp120 y Gag-Pol-Nef del virus de la inmunodeficiencia humana (VIH-1) de subtipo B (MVA-B), sobre los que se ha delecionado el gen de vaccinia C6L, y que han sido diseñados para utilizarse como vacunas contra el VIH/SIDA y otras enfermedades.

  20. Improved attenuation correction for respiratory gated PET/CT with extended-duration cine CT: a simulation study

    Science.gov (United States)

    Zhang, Ruoqiao; Alessio, Adam M.; Pierce, Larry A.; Byrd, Darrin W.; Lee, Tzu-Cheng; De Man, Bruno; Kinahan, Paul E.

    2017-03-01

    Due to the wide variability of intra-patient respiratory motion patterns, traditional short-duration cine CT used in respiratory gated PET/CT may be insufficient to match the PET scan data, resulting in suboptimal attenuation correction that eventually compromises the PET quantitative accuracy. Thus, extending the duration of cine CT can be beneficial to address this data mismatch issue. In this work, we propose to use a long-duration cine CT for respiratory gated PET/CT, whose cine acquisition time is ten times longer than a traditional short-duration cine CT. We compare the proposed long-duration cine CT with the traditional short-duration cine CT through numerous phantom simulations with 11 respiratory traces measured during patient PET/CT scans. Experimental results show that, the long-duration cine CT reduces the motion mismatch between PET and CT by 41% and improves the overall reconstruction accuracy by 42% on average, as compared to the traditional short-duration cine CT. The long-duration cine CT also reduces artifacts in PET images caused by misalignment and mismatch between adjacent slices in phase-gated CT images. The improvement in motion matching between PET and CT by extending the cine duration depends on the patient, with potentially greater benefits for patients with irregular breathing patterns or larger diaphragm movements.

  1. Some remarks on a generalized vector product

    OpenAIRE

    ACOSTA-HUMÁNEZ, PRIMITIVO; ARANDA, MOISÉS; NÚÑEZ, REINALDO

    2011-01-01

    Abstract. In this paper we use a generalized vector product to construct an exterior form ⊥ : , where Finally, for n = k - 1 we introduce the reversing operation to study this generalized vector product over palindromic and antipalindromic vectors. Resumen. En este art&íacute;culo usamos un producto vectorial generalizado para construir una forma exterior ⊥ : , en donde como es natural, Finalmente, para n = k - 1 introducimos la operación reversar para estudiar este producto vectorial gene...

  2. Las Formas Políticas del Cine Argentino: Montajes, Disrupciones y Estéticas de una Tradición Political Forms of Argentinean Cinema: Editing, Disrupting, and the Aesthetics of a Tradition

    Directory of Open Access Journals (Sweden)

    Esteban Dipaola

    2010-12-01

    Full Text Available El artículo indaga y analiza las formas políticas del cine argentino desde los años sesenta a la actualidad, pero centrándose especialmente en el cine argentino contemporáneo (1995-2010. Se propone hablar de «formas políticas» y no de «cine político» como ejercicio para pensar la política y la estética en sus relaciones inmanentes. Así, establece tres períodos: los años sesenta y setenta como la irrupción de la política en el cine; los años ochenta como el desplazamiento de la política por la denuncia moral y los años noventa y post 2001 como un retorno de lo sensible o como el advenimiento de las «políticas de lo sensible». Así, se indaga en las formas políticas del cine y conjuntamente se interroga el dispositivo de representación estética de la cinematografía.This article examines and analyzes political forms of argentine cinema from the sixties to the present, focusing especially on contemporary argentine cinema (1995-2010. It will try to deal with «political forms» rather than with the notion of a «political film», an exercise to think about politics and aesthetics as an immanent relation. Thus, three periods are considered in this article: the sixties and seventies as the emergence of political cinema; the eighties as the displacement of politics by moral denunciation and the nineties and after 2001 as a return of the sensory experience or as the advent of «sensible policies.» The text will explore political forms in films, and will question this device of aesthetic representation in cinematography.

  3. Cine MRI of the thorax in patients with pectus excavatum

    International Nuclear Information System (INIS)

    Herrmann, K.A.; Zech, C.J.; Schoenberg, S.O.; Reiser, M.F.; Strauss, T.; Hatz, R.

    2006-01-01

    Morphologic and dynamic assessment of respiratory chest kinetics was performed in patients with pectus excavatum deformity (PE) using dynamic MRI: cine MRI. Seven consecutive patients with PE (aged 20.3 years±4.0) and ten healthy volunteers of comparable age underwent real-time cine MRI of the chest during breathing on a 1.5 T MR scanner (Magnetom Sonata, Siemens Medical Systems, Erlangen, Germany) using a standard phased array body coil and a half-Fourier single-shot turbo spin echo sequence (HASTE) for dynamic imaging. During deep inspiration and expiration, single-shot sequences were performed in one slice level over 20 s at a frequency of 1 image/s covering the entire thoracic cage in three orientations. Morphology and chest kinetics in patients with PE were analyzed and compared with normal values, and typical patterns of chest kinetics were noted. Three different types of chest morphology in PE were identified: (1) the generally flattened thoracic cage, (2) the ''tilted'' sternum, and (3) the focally deepened sternum. Three patterns of motion correspond to these morphological types: (1) elevation of the sternum and the anterior thoracic wall, (2) angulated elevation of the parasternal rib cage with persistent deepening of the sternum resembling a ''wing beat'' movement, and (3) increased diaphragmatic movements with limited chest wall dynamics. Cine MRI is an adequate radiation-free diagnostic modality for the dynamic imaging of both chest morphology and chest wall kinetics in patients with PE. The pectus severity index can easily be determined and three typical movement patterns of chest wall kinetics identified. (orig.) [de

  4. A Technique for Generating Volumetric Cine-Magnetic Resonance Imaging

    International Nuclear Information System (INIS)

    Harris, Wendy; Ren, Lei; Cai, Jing; Zhang, You; Chang, Zheng; Yin, Fang-Fang

    2016-01-01

    Purpose: The purpose of this study was to develop a techique to generate on-board volumetric cine-magnetic resonance imaging (VC-MRI) using patient prior images, motion modeling, and on-board 2-dimensional cine MRI. Methods and Materials: One phase of a 4-dimensional MRI acquired during patient simulation is used as patient prior images. Three major respiratory deformation patterns of the patient are extracted from 4-dimensional MRI based on principal-component analysis. The on-board VC-MRI at any instant is considered as a deformation of the prior MRI. The deformation field is represented as a linear combination of the 3 major deformation patterns. The coefficients of the deformation patterns are solved by the data fidelity constraint using the acquired on-board single 2-dimensional cine MRI. The method was evaluated using both digital extended-cardiac torso (XCAT) simulation of lung cancer patients and MRI data from 4 real liver cancer patients. The accuracy of the estimated VC-MRI was quantitatively evaluated using volume-percent-difference (VPD), center-of-mass-shift (COMS), and target tracking errors. Effects of acquisition orientation, region-of-interest (ROI) selection, patient breathing pattern change, and noise on the estimation accuracy were also evaluated. Results: Image subtraction of ground-truth with estimated on-board VC-MRI shows fewer differences than image subtraction of ground-truth with prior image. Agreement between normalized profiles in the estimated and ground-truth VC-MRI was achieved with less than 6% error for both XCAT and patient data. Among all XCAT scenarios, the VPD between ground-truth and estimated lesion volumes was, on average, 8.43 ± 1.52% and the COMS was, on average, 0.93 ± 0.58 mm across all time steps for estimation based on the ROI region in the sagittal cine images. Matching to ROI in the sagittal view achieved better accuracy when there was substantial breathing pattern change. The technique was robust against

  5. A Technique for Generating Volumetric Cine MRI (VC-MRI)

    Science.gov (United States)

    Harris, Wendy; Ren, Lei; Cai, Jing; Zhang, You; Chang, Zheng; Yin, Fang-Fang

    2016-01-01

    Purpose To develop a technique to generate on-board volumetric-cine MRI (VC-MRI) using patient prior images, motion modeling and on-board 2D-cine MRI. Methods One phase of a 4D-MRI acquired during patient simulation is used as patient prior images. 3 major respiratory deformation patterns of the patient are extracted from 4D-MRI based on principal-component-analysis. The on-board VC-MRI at any instant is considered as a deformation of the prior MRI. The deformation field is represented as a linear combination of the 3 major deformation patterns. The coefficients of the deformation patterns are solved by the data fidelity constraint using the acquired on-board single 2D-cine MRI. The method was evaluated using both XCAT simulation of lung cancer patients and MRI data from four real liver cancer patients. The accuracy of the estimated VC-MRI was quantitatively evaluated using Volume-Percent-Difference(VPD), Center-of-Mass-Shift(COMS), and target tracking errors. Effects of acquisition orientation, region-of-interest(ROI) selection, patient breathing pattern change and noise on the estimation accuracy were also evaluated. Results Image subtraction of ground-truth with estimated on-board VC-MRI shows fewer differences than image subtraction of ground-truth with prior image. Agreement between profiles in the estimated and ground-truth VC-MRI was achieved with less than 6% error for both XCAT and patient data. Among all XCAT scenarios, the VPD between ground-truth and estimated lesion volumes was on average 8.43±1.52% and the COMS was on average 0.93±0.58mm across all time-steps for estimation based on the ROI region in the sagittal cine images. Matching to ROI in the sagittal view achieved better accuracy when there was substantial breathing pattern change. The technique was robust against noise levels up to SNR=20. For patient data, average tracking errors were less than 2 mm in all directions for all patients. Conclusions Preliminary studies demonstrated the

  6. El cine ante las transformaciones y los flujos comunicativos globales

    Directory of Open Access Journals (Sweden)

    Francisco Javier Ruiz del Olmo

    2012-06-01

    Full Text Available La convocatoria del presente número monográfico sobre los cambios producidos en el dispositivo cinematográfico de las últimas décadas, deliberadamente amplia y multifacética, no excluía sin embargo una cierta focalización hacia el estudio que la diseminación de nuevas prácticas culturales, consecuencia de la digitalización de la imagen de las relaciones entre el cine y la red y los flujos comunicativos globales.

  7. A Technique for Generating Volumetric Cine-Magnetic Resonance Imaging

    Energy Technology Data Exchange (ETDEWEB)

    Harris, Wendy [Medical Physics Graduate Program, Duke University, Durham, North Carolina (United States); Ren, Lei, E-mail: lei.ren@duke.edu [Medical Physics Graduate Program, Duke University, Durham, North Carolina (United States); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Cai, Jing [Medical Physics Graduate Program, Duke University, Durham, North Carolina (United States); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Zhang, You [Medical Physics Graduate Program, Duke University, Durham, North Carolina (United States); Chang, Zheng; Yin, Fang-Fang [Medical Physics Graduate Program, Duke University, Durham, North Carolina (United States); Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States)

    2016-06-01

    Purpose: The purpose of this study was to develop a techique to generate on-board volumetric cine-magnetic resonance imaging (VC-MRI) using patient prior images, motion modeling, and on-board 2-dimensional cine MRI. Methods and Materials: One phase of a 4-dimensional MRI acquired during patient simulation is used as patient prior images. Three major respiratory deformation patterns of the patient are extracted from 4-dimensional MRI based on principal-component analysis. The on-board VC-MRI at any instant is considered as a deformation of the prior MRI. The deformation field is represented as a linear combination of the 3 major deformation patterns. The coefficients of the deformation patterns are solved by the data fidelity constraint using the acquired on-board single 2-dimensional cine MRI. The method was evaluated using both digital extended-cardiac torso (XCAT) simulation of lung cancer patients and MRI data from 4 real liver cancer patients. The accuracy of the estimated VC-MRI was quantitatively evaluated using volume-percent-difference (VPD), center-of-mass-shift (COMS), and target tracking errors. Effects of acquisition orientation, region-of-interest (ROI) selection, patient breathing pattern change, and noise on the estimation accuracy were also evaluated. Results: Image subtraction of ground-truth with estimated on-board VC-MRI shows fewer differences than image subtraction of ground-truth with prior image. Agreement between normalized profiles in the estimated and ground-truth VC-MRI was achieved with less than 6% error for both XCAT and patient data. Among all XCAT scenarios, the VPD between ground-truth and estimated lesion volumes was, on average, 8.43 ± 1.52% and the COMS was, on average, 0.93 ± 0.58 mm across all time steps for estimation based on the ROI region in the sagittal cine images. Matching to ROI in the sagittal view achieved better accuracy when there was substantial breathing pattern change. The technique was robust against

  8. El sonido en el cine de Apichatpong Weerasethakul

    OpenAIRE

    Expósito-Barea, Milagros

    2008-01-01

    El sonido es un aspecto poco estudiado en los análisis cinematográficos. Solamente la música ha conseguido alcanzar un cierto estatus dentro de los mismos. Con este artículo se pretende poner en práctica las diferentes connotaciones que puede tener el sonido a partir de la obra del director de cine tailandés Apichatpong Weerasethakul, gran impulsor de proyectos audio-visuales en el sentido más amplio y heterogéneo del término.

  9. Vector geometry

    CERN Document Server

    Robinson, Gilbert de B

    2011-01-01

    This brief undergraduate-level text by a prominent Cambridge-educated mathematician explores the relationship between algebra and geometry. An elementary course in plane geometry is the sole requirement for Gilbert de B. Robinson's text, which is the result of several years of teaching and learning the most effective methods from discussions with students. Topics include lines and planes, determinants and linear equations, matrices, groups and linear transformations, and vectors and vector spaces. Additional subjects range from conics and quadrics to homogeneous coordinates and projective geom

  10. SUJETOS EN LA HISTORIA: EL NUEVO CINE LATINOAMERICANO Y LA FRONTALIDAD DEL DISCURSO

    Directory of Open Access Journals (Sweden)

    Silvana Flores

    2011-01-01

    Full Text Available A través de este articulo, estableceremos el análisis de dos recursos estéticos que el Nuevo Cine Latinoamericano ha empleado con el objetivo de incorporar la subjetividad en el discurso de los sectores de la población que tradicionalmente han sido marginados de la expresividad audiovisual. Nos referimos específicamente al uso de la voz over y de la mirada interpeladora hacia la cámara, como formas que habilitaron la confrontación de los protagonistas de alguna clase de explotación social o económica al destinatario de los films, quien se encuentra de esta manera ante una realidad hasta entonces enmascarada en las pantallas. La presencia de la voz y el cuerpo (ojo de los trabajadores fue, por lo tanto, uno de los modos a partir de los cuales los cineastas políticos de América Latina se abocaron a la instrumentalización del arte cinematográfico en pos de la consecución de una Revolución.

  11. Del Olimpo al celuloide[Gran Canaria]: Los mitos en el cine y su aplicabilidad para la docencia en Educación Secundaria Obligatoria. Estudio de casos: Pigmalión y Pandora

    OpenAIRE

    González Padrón, Iraima

    2017-01-01

    Proponemos un proyecto que trata de poner en valor el cine como recurso pedagógico, para lo cual se ha elaborado una propuesta didáctica. A través de esta, los alumnos podrán adquirir conocimientos tanto de la mitología clásica, pues trataremos la transposición de los mitos a las películas, a veces de forma subliminal, como de cultura y lenguaje cinematográfico.

  12. Cine magnetic resonance imaging for evaluation of cardiac structure and flow dynamics in congenital heart disease

    International Nuclear Information System (INIS)

    Akagi, Teiji; Kiyomatsu, Yumi; Ohara, Nobutoshi; Takagi, Junichi; Sato, Noboru; Kato, Hirohisa; Eto, Takaharu.

    1989-01-01

    Cine magnetic resonance imaging (Cine MRI) was performed in 20 patients aged 19 days to 13 years (mean 4.0 years), who had congenital heart disease confirmed at echocardiography or angiography. Prior to cine MRI, gated MRI was performed to evaluate for cardiac structure. Cine MRI was demonstrated by fast low fip angle shot imaging technique with a 30deg flip angle, 15 msec echo time, 30-40 msec pulse repetition time, and 128 x 128 acquisition matrix. Abnormalities of cardiac structure were extremely well defined in all patients by gated MRI. Intracardiac or intravascular blood flow were visualized in 17 (85%) of 20 patients by cine MRI. Left to right shunt flow through ventricular septal defect, atrial septal defect, and endocardial cushion defect were visualized with low signal intensity area. Low intensity jets flow through the site of re-coarctation of the aorta were also visualized. However, the good recording of cine MRI was not obtained because of artifacts in 3 of 20 patients (15%) who had severe congestive heart failure or respiratory arrhythmia. Gated MRI provides excellent visualization of fine structure, and cine MRI can provide high spatial resolution imaging of flow dynamic in a variety of congenital heart disease, noninvasively. (author)

  13. Megavoltage conebeam CT cine as final verification of treatment plan in lung stereotactic body radiotherapy

    International Nuclear Information System (INIS)

    Kudithipudi, Vijay; Gayou, Olivier; Colonias, Athanasios

    2016-01-01

    To analyse the clinical impact of megavoltage conebeam computed tomography (MV-CBCT) cine on internal target volume (ITV) coverage in lung stereotactic body radiotherapy (SBRT). One hundred and six patients received lung SBRT. All underwent 4D computed tomography simulation followed by treatment via image guided 3D conformal or intensity modulated radiation. Prior to SBRT, all patients underwent MV-CBCT cine, in which raw projections are displayed as beam's-eye-view fluoroscopic series with the planning target volume (PTV) projected onto each image, enabling verification of tumour motion relative to the PTV and assessment of adequacy of treatment margin. Megavoltage conebeam computed tomography cine was completed 1–2 days prior to SBRT. Four patients (3.8%) had insufficient ITV coverage inferiorly at cine review. All four plans were changed by adding 5 mm on the PTV margin inferiorly. The mean change in PTV volumes was 3.9 cubic centimetres (cc) (range 1.85–6.32 cc). Repeat cine was performed after plan modification to ensure adequate PTV coverage in the modified plans. PTV margin was adequate in the majority of patients with this technique. MV-CBCT cine did show insufficient coverage in a small subset of patients. Insufficient PTV margins may be a function of 4D CT simulation inadequacies or deficiencies in visualizing the ITV inferior border in the full-inhale phase. MV-CBCT cine is a valuable tool for final verification of PTV margins.

  14. Cine dyscontractility index: A novel marker of mechanical dyssynchrony that predicts response to cardiac resynchronization therapy.

    Science.gov (United States)

    Werys, Konrad; Petryka-Mazurkiewicz, Joanna; Błaszczyk, Łukasz; Miśko, Jolanta; Śpiewak, Mateusz; Małek, Łukasz A; Mazurkiewicz, Łukasz; Miłosz-Wieczorek, Barbara; Marczak, Magdalena; Kubik, Agata; Dąbrowska, Agnieszka; Piątkowska-Janko, Ewa; Sawionek, Błażej; Wijesurendra, Rohan; Piechnik, Stefan K; Bogorodzki, Piotr

    2016-12-01

    To investigate whether magnetic resonance imaging (MRI) cine-derived dyssynchrony indices provide additional information compared to conventional tagged MRI (tMRI) acquisitions in heart failure patients undergoing cardiac resynchronization therapy (CRT). Patients scheduled for CRT (n = 52) underwent preprocedure MRI including cine and tMRI acquisitions. Segmental strain curves were calculated for both cine and tMRI to produce a range of standard indices for direct comparison between modalities. We also proposed and evaluated a novel index of "dyscontractility," which detects the presence of focal areas with paradoxically positive circumferential strain. Across conventional strain indices, there was only moderate-to-poor (R = 0.3-0.6) correlation between modalities; eight cine-derived indices showed statistically significant (P cine images (cine dyscontractility index, "CDI") was the single best predictor of clinical response to CRT (area under the curve AUC = 0.81, P Cine-derived strain indices offer potentially new information compared to tMRI. Specifically, the novel CDI is most strongly linked to response to cardiac resynchronization therapy in a contemporary patient cohort. It utilizes readily available MRI data, is relatively straightforward to process, and compares favorably with any conventional tagging index. J. Magn. Reson. Imaging 2016;44:1483-1492. © 2016 International Society for Magnetic Resonance in Medicine.

  15. Application of phase-contrast cine magnetic resonance imaging in endoscopic aqueductoplasty.

    Science.gov (United States)

    Chen, Guoqiang; Zheng, Jiaping; Xiao, Qing; Liu, Yunsheng

    2013-06-01

    The aim of this study was to evaluate the application of phase-contrast cine magnetic resonance imaging (MRI) in endoscopic aqueductoplasty (EA) for patients with obstructive hydrocephalus. The clinical diagnosis of hydrocephalus caused by aqueduct obstruction in 23 patients was confirmed by phase-contrast cine MRI examination. The patients were treated with EA and MRI was repeated during the follow-up. The cerebrospinal fluid (CSF) flow velocity in the aqueduct was measured to determine whether the aqueduct was obstructed. The results of phase-contrast cine MRI examinations indicated that there was no CSF flow in the aqueduct for all patients prior to surgery. Aqueductoplasty was successfully performed in all patients. The results of phase-contrast cine MRI examinations performed a week after surgery demonstrated an average CSF flow velocity of 4.74±1.77 cm/sec. During the follow-up, intracranial hypertension recurred in two patients in whom CSF flow was not observed in the aqueduct by the phase-contrast cine MRI scan. Aqueduct re-occlusion was revealed by an endoscopic exploration. By measuring the CSF flow velocity, phase-contrast cine MRI accurately identifies aqueduct obstruction. Cine MRI is a nontraumatic, simple and reliable method for determining whether the aqueduct is successfully opened following aqueductoplasty.

  16. Las relaciones compositivas entre cine y arquitectura

    Directory of Open Access Journals (Sweden)

    Luis Villareal Ugarte

    2011-07-01

    Full Text Available El presente texto presenta la cinematografía y, en particular, sus técnicas de creación (construcción como un referente para la proyección de la obra arquitectónica. Se hace una lectura sobre las posibilidades que surgen en el encuentro entre estas dos disciplinas, siempre desde una perspectiva del proyecto arquitectónico, es decir, desde su concepción-composición. El texto se construyó a partir de las técnicas propias del lenguaje cinematográfico, más relacionadas con la proyección espacial arquitectónica, para ir encontrando paralelos entre ambas expresiones artísticas. Con esta intención, se ha echado mano de bibliografía que, desde una perspectiva compositiva, ayude a comprender las posibilidades que representa esta relación. Igualmente, el texto hace referencia a reconocidas obras arquitectónicas que por su misma composición (y experiencia son muestra de esta actitud creadora. Estas obras ayudan a demostrar la propuesta del autor, y el texto trata de ser una invitación para releer su arquitectura desde otra perspectiva que pueda dar pie para la creación de nuevas obras arquitectónicas. Más que expositiva, la intención principal del texto es propositiva para el lector-compositor de los nuevos espacios.

  17. A study of intraluminal flow in patients with aortic disease by cine magnetic resonance imaging

    International Nuclear Information System (INIS)

    Ohnishi, Shusaku; Fukui, Sugao; Kusuoka, Hideo; Kitabatake, Akira; Kamada, Takenobu.

    1990-01-01

    To evaluate the usefulness of cine magnetic resonance (MR) imaging in the diagnosis of aortic disease, we applied cine MR sequences with conventional spin echo (SE) sequence to 15 patients with aortic aneurysm and 5 patients with aortic dissection. ECG gated multi slice SE images (single echo) were obtained in transverse plane and the planes along the long axis of aorta. TE of SE sequence ranged from 15 to 32 msec. Cine MR images were obtained in 17 frames, where TR ranged from 30 to 60 msec and TE from 10 to 22 msec. We got these results as follows. For aortic aneurysm, SE images showed aneurysmal dilatation in thoracic aorta in 9 cases, and in abdominal aorta in 6 cases. Cine MR images showed us the intraluminal flow with high signal intensity. We could differentiate the slow flow image from mural thrombus using SE and cine MR sequences in the same plane. We could evaluate the dynamic flow image within a cavity of aneurysm and in in-flow and out-flow portions of aorta by cine MR imaging. For aortic dissection, SE images delineated the intimal tear and two separated lumens in all cases. We could obtain flow images within true and false lumen by cine MR imaging. The signal intensity within true lumen was higher than that within false lumen. It seemed to be due to the difference of flow velocity and the turbulence within false lumen. Entry to false lumen was seen as the interruption of dissected intima on SE images. Cine MR images clearly depicted the blood flow communication between two lumens through the entry. In 3 of 5 cases the blood flow through the entry was seen in both directions, from true to false lumen in systole and inversely in diastole. Thus, cine MR imaging will add the useful hemodynamic information in the diagnosis of aortic disease by conventional MR imaging. (author)

  18. VECTOR INTEGRATION

    NARCIS (Netherlands)

    Thomas, E. G. F.

    2012-01-01

    This paper deals with the theory of integration of scalar functions with respect to a measure with values in a, not necessarily locally convex, topological vector space. It focuses on the extension of such integrals from bounded measurable functions to the class of integrable functions, proving

  19. El papel del cine en el proceso de enseñanza-aprendizaje en Dirección de Operaciones: El caso de Tiempos Modernos

    Directory of Open Access Journals (Sweden)

    María Mitre Aranda

    2012-11-01

    Full Text Available El cine constituye una poderosa herramienta didáctica para enseñar dirección de empresas debido a su capacidad para: motivar el interés, provocar el análisis crítico y mostrar con claridad conceptos difíciles de explicar. El cine establece marcos referenciales de sociedades, épocas y teorías dándonos información que de otra forma, a través de los textos de dirección, es difícil de recrear. Entre los docentes de Administración de Empresas y, si cabe, más aún, entre quienes se dedican a la Dirección de Operaciones, la discusión sobre el valor de este recurso permanece viva. No sólo se discute acerca del papel que pueden desempeñar el cine y la televisión en la actividad docente, sino, incluso aceptando que este debe ser crucial, hay un debate muy relevante entre los académicos acerca de cómo se debe utilizar este material didáctico, si bien debe reconocerse que el uso del cine y la televisión en la docencia en Dirección de Operaciones todavía está muy mermado. En el presente trabajo recurriremos al análisis de Tiempos Modernos en cuanto a su potencial para enseñar y aprender Dirección de Operaciones. Como la literatura ha señalado, las representaciones que el cine y la televisión hacen de las empresas suelen ser diferentes de los análisis más convencionales del trabajo (en particular, representan los lugares de trabajo como un punto de implicación, personal y emocional, y explora los marcos e interacciones de trabajo diarios que pueden contener críticas implícitas de un marco capitalista. De hecho, la literatura sobre metodología docente y dirección ya ha considerado casos concretos al respecto. Los Simpsons es un buen ejemplo de ello. Ahora bien, la potencialidad del cine y de la televisión en la enseñanza no finaliza aquí. En este trabajo una serie de escenas nos permiten mostrar cómo Tiempos Modernos permite favorecer la comprensión por parte del estudiante de diferentes contenidos en Direcci

  20. La experiencia social histórica de asistencia al cine en Monterrey (Nuevo León, México) durante las décadas de 1930 a 1960

    OpenAIRE

    Lozano, José Carlos; Meers, Philippe; Biltereyst, Daniel

    2016-01-01

    En este trabajo se analiza la experiencia social histórica de asistencia al cine en Monterrey (Nuevo León, México) durante las décadas de 1930 a 1960, según entrevistas focalizadas con 28 informantes mayores de 65 años. En los resultados, se destaca la importancia histórica de las salas de cine, así como las películas y los actores estadounidense y mexicanos, en la vida personal, familiar y colectiva de Monterrey, dentro del contexto histórico de su transformación en una de las ciudades más g...

  1. Cardiovascular cine imaging and flow evaluation using Fast Interrupted Steady-State (FISS) magnetic resonance.

    Science.gov (United States)

    Edelman, Robert R; Serhal, Ali; Pursnani, Amit; Pang, Jianing; Koktzoglou, Ioannis

    2018-02-19

    Existing cine imaging techniques rely on balanced steady-state free precession (bSSFP) or spoiled gradient-echo readouts, each of which has limitations. For instance, with bSSFP, artifacts occur from rapid through-plane flow and off-resonance effects. We hypothesized that a prototype cine technique, radial fast interrupted steady-state (FISS), could overcome these limitations. The technique was compared with standard cine bSSFP for cardiac function, coronary artery conspicuity, and aortic valve morphology. Given its advantageous properties, we further hypothesized that the cine FISS technique, in combination with arterial spin labeling (ASL), could provide an alternative to phase contrast for visualizing in-plane flow patterns within the aorta and branch vessels. The study was IRB-approved and subjects provided consent. Breath-hold cine FISS and bSSFP were acquired using similar imaging parameters. There was no significant difference in biplane left ventricular ejection fraction or cardiac image quality between the two techniques. Compared with cine bSSFP, cine FISS demonstrated a marked decrease in fat signal which improved conspicuity of the coronary arteries, while suppression of through-plane flow artifact on thin-slice cine FISS images improved visualization of the aortic valve. Banding artifacts in the subcutaneous tissues were reduced. In healthy subjects, dynamic flow patterns were well visualized in the aorta, coronary and renal arteries using cine FISS ASL, even when the slice was substantially thicker than the vessel diameter. Cine FISS demonstrates several benefits for cardiovascular imaging compared with cine bSSFP, including better suppression of fat signal and reduced artifacts from through-plane flow and off-resonance effects. The main drawback is a slight (~ 20%) decrease in temporal resolution. In addition, preliminary results suggest that cine FISS ASL provides a potential alternative to phase contrast techniques for in-plane flow

  2. Teatro y cine: un permanente diálogo intermedial

    Directory of Open Access Journals (Sweden)

    Pérez Bowie, José Antonio

    2004-04-01

    Full Text Available Se intenta trazar una panorámica de las aportaciones teóricas más significativas sobre las relaciones entre teatro y cine, con especial atención a algunas de las producidas recientemente en el ámbito español. En un primer apartado se lleva a cabo un recorrido somero sobre los principales problemas que plantea el cotejo de ambos medios y en los dos siguientes se abordan respectivamente los problemas planteados por adaptación de los textos teatrales al cine y la influencia ejercida por éste, a partir de determinado momento de su desarrollo, sobre el arte escénico. Este último apartado se completa con el análisis, a título de ejemplo, de un caso concreto: la producción de los comediógrafos de la denominada «la otra generación del 27».…

  3. Cine-MR imaging of valvular heart disease

    International Nuclear Information System (INIS)

    Park, Jae Hyung; Han, Man Chung; Kim, Chu Wan; Kim, Dae Jin; Kim, Woo Sung; Park, Hyun Wuk; Cho, Zang Hee

    1989-01-01

    Cine-MR imaging was done in 2 normal persons and 9 patients of valvular heart disease with 2.0 T superconducting MR system (Spectro-2000; GoldStar, Korea). The MRI was undertaken using gradient echo technique with small flip angle. Repetition time (TR) was 34 msec, and echo time (TE), 18 msec. In most cases, 20 to 30 frames could be obtained during one cardiac cycle. With normal heart, high signal intensity was identified in the blood filled cardiac chambers. Transient signal void was observed near tricuspid, mitral and aortic valves due to the turbulences induced by valve opening or closure. In 6 cases of mitral valvular disease, mitral valve was identified in all cases. The valvular motion was limited revealing doming toward cardiac apex during diastole. Signal void was evident in pansystolic phase of left ventricle in all cases. Evidence of combined aortic or tricuspid valve disease were also demonstrated, revealing signal void in the corresponding cardiac chambers. Cine-MRI seemed to be not only a good non-invasive diagnostic modality for the valvular heart disease, but also an accurate modality for cardiac functional evaluation

  4. Presenting CineGlobe Estival! | 6 - 10 July

    CERN Multimedia

    2016-01-01

    Join CineGlobe under a projected starry sky for a film festival and games with a neuroscience twist.   The 6th edition of the CineGlobe International Film Festival at CERN will take place during the first week of July 2016 (on the Globe grounds at CERN, from Wednesday 6 to Friday 8 July) and then during the Nuit de la Science (at the Museum of the History of Science, on July 9 and 10). The festival will include an open-air cinema, film projections in the Globe of Science and Innovation at CERN, the interactive Emotional Circus (carnival-inspired games played with just the participant’s brainwaves) and a special sci-fi edition of the 48 Hour Film Project. The full program will target people of all ages with fun and informative activities such as children’s films in the Minima Cinema, and a workshop on the creation of a pinhole camera with an empty Tetra-Pak milk carton. Practical information: Entry is free. All films in English and French. Onsite food trucks at the G...

  5. Cine-MR imaging of valvular heart disease

    Energy Technology Data Exchange (ETDEWEB)

    Park, Jae Hyung; Han, Man Chung; Kim, Chu Wan [Seoul National University College of Medicine, Seoul (Korea, Republic of); Kim, Dae Jin; Kim, Woo Sung; Park, Hyun Wuk; Cho, Zang Hee [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

    1989-04-15

    Cine-MR imaging was done in 2 normal persons and 9 patients of valvular heart disease with 2.0 T superconducting MR system (Spectro-2000; GoldStar, Korea). The MRI was undertaken using gradient echo technique with small flip angle. Repetition time (TR) was 34 msec, and echo time (TE), 18 msec. In most cases, 20 to 30 frames could be obtained during one cardiac cycle. With normal heart, high signal intensity was identified in the blood filled cardiac chambers. Transient signal void was observed near tricuspid, mitral and aortic valves due to the turbulences induced by valve opening or closure. In 6 cases of mitral valvular disease, mitral valve was identified in all cases. The valvular motion was limited revealing doming toward cardiac apex during diastole. Signal void was evident in pansystolic phase of left ventricle in all cases. Evidence of combined aortic or tricuspid valve disease were also demonstrated, revealing signal void in the corresponding cardiac chambers. Cine-MRI seemed to be not only a good non-invasive diagnostic modality for the valvular heart disease, but also an accurate modality for cardiac functional evaluation.

  6. El rostro del suicida en el espejo del cine

    Directory of Open Access Journals (Sweden)

    Beatriz OGANDO DÍAZ

    2016-09-01

    Full Text Available El suicidio es una de las formas de morir más escondida y silenciada en nuestra sociedad. A la vez es una de las que genera mayor sufrimiento, previo en quienes se escapan de la vida y posterior por la culpa que atormenta a los supervivientes. Es además una de las causas más relevante de muerte violenta en ado- lescentes y ancianos. Sobre ella pesa cierto tipo de conspiración de silencio social que quizá pueda ser abordado a través del cine. Son muchas las películas que se han ocupado de este tema, aunque no siem- pre de modo central. En muchas de ellas el suicidio de uno de los personajes determina todo el desarro- llo posterior de la trama o le pone el broche final a la historia. En otras se intenta explicar lo inexplicable: por qué alguien puede preferir morir a seguir viviendo. Incluso algunas películas se han acercado a este drama vital enfocándolo desde el humor.La facilidad del cine en mostrar el mundo emocional de sus personajes y su capacidad de hacer eviden- tes elementos de la realidad que pueden pasar desapercibidos sugieren que puede ser un buen vehícu- lo para intentar comprender a las personas que deciden saltar sobre su propia sombra y morir antes de tiempo.

  7. Respiratory repercussions of gastroesophageal reflux and Cine-esophagogastroscintigraphy

    Energy Technology Data Exchange (ETDEWEB)

    Guillemeteau, C.; Saudubray, F. (Hopital des Enfants, 33 - Bordeaux (France)); Guillet, J. (Hopital Pellegrin, 33 - Bordeaux (France))

    1985-04-01

    Asthma and recurrent bronchopneumopathies in children are often associated with gastroesophageal reflux. Cine-esogastroscintigraphy is proposed for demonstrating reflux and establishing its direct or indirect responsibility in respiratory disease. 133 patients aged 5 months to 16 years were studied. Reflux was found in 65.5% of cases, either severe (44.4% of cases) or minor (21.1%). Episodes of reflux produced respiratory manifestations in 7% of patients. Inhalation of refluxed material was proved in 3% by demonstration of pulmonary contamination. Sensitivity of cine-esophagogastroscintigraphy is comparable to that of esophageal pH measurement for detection of reflux. It does not require positioning of a probe in the esophageal lumen. It provides quantitative parameters on esophageal transit, reflux and gastric voiding, and demonstrates pulmonary contamination. It is easy to perform and can be readily included in an outpatient clinic workup. Its sensitivity and reliability make it a useful tool for evaluation of therapeutic efficiency. The interlocking of various physiopathologic factors contributes to the polymorphism of respiratory manifestations of reflux.

  8. Respiratory repercussions of gastroesophageal reflux and cine-esophagogastroscintigraphy

    Energy Technology Data Exchange (ETDEWEB)

    Guillemeteau, C.; Saudubray, F. (Hopital des Enfants, 33 - Bordeaux (France)); Guillet, J. (Hopital Pellegrin, 33 - Bordeaux (France))

    1984-10-01

    Asthma and recurrent bronchopneumopathies in children are often associated with gastroesophageal reflux. Cine-esophagogastroscintigraphy is proposed for demonstrating reflux and establishing its direct or indirect responsibility in respiratory disease. 133 patients aged 5 months to 16 years were studied. Reflux was found in 65.5% of cases, either severe (44.4% of cases) or minor (21.1%). Episodes of reflux produced respiratory manifestations in 7% of patients. Inhalation of refluxed material was proved in 3% by demonstration of pulmonary contamination. Sensitivity of cine-esophagogastroscintigraphy is comparable to that of esophageal pH measurement for detection of reflux. It does not require positioning of a probe in the esophageal lumen. It provides quantitative parameters on esophageal transit, reflux and gastric voiding, and demonstrates pulmonary contamination. It is easy to perform and can be readily included in an outpatient clinic workup. Its sensitivity and reliability make it a useful tool for evaluation of therapeutic efficiency. The interlocking of various physiopathologic factors contributes to the polymorphism of respiratory manifestations of reflux.

  9. Respiratory repercussions of gastroesophageal reflux and cine-esophagogastroscintigraphy

    International Nuclear Information System (INIS)

    Guillemeteau, C.; Saudubray, F.; Guillet, J.

    1984-01-01

    Asthma and recurrent bronchopneumopathies in children are often associated with gastroesophageal reflux. Cine-esogastroscintigraphy is proposed for demonstrating reflux and establishing its direct or indirect responsibility in respiratory disease. 133 patients aged 5 months to 16 years were studied. Reflux was found in 65.5% of cases, either severe (44.4% of cases) or minor (21.1%). Episodes of reflux produced respiratory manifestations in 7% of patients. Inhalation of refluxed material was proved in 3% by demonstration of pulmonary contamination. Sensitivity of cine-esophagogastroscintigraphy is comparable to that of esophageal pH measurement for detection of reflux. It does not require positioning of a probe in the esophageal lumen. It provides quantitative parameters on esophageal transit, reflux and gastric voiding, and demonstrates pulmonary contamination. It is easy to perform and can be readily included in an outpatient clinic workup. Its sensitivity and reliability make it a useful tool for evaluation of therapeutic efficiency. The interlocking of various physiopathologic factors contributes to the polymorphism of respiratory manifestations of reflux [fr

  10. Respiratory repercussions of gastroesophageal reflux and cine-esophagogastroscintigraphy

    International Nuclear Information System (INIS)

    Guillemeteau, C.; Saudubray, F.; Guillet, J.

    1985-01-01

    Asthma and recurrent bronchopneumopathies in children are often associated with gastroesophageal reflux. Cine-esogastroscintigraphy is proposed for demonstrating reflux and establishing its direct or indirect responsibility in respiratory disease. 133 patients aged 5 months to 16 years were studied. Reflux was found in 65.5% of cases, either severe (44.4% of cases) or minor (21.1%). Episodes of reflux produced respiratory manifestations in 7% of patients. Inhalation of refluxed material was proved in 3% by demonstration of pulmonary contamination. Sensitivity of cine-esophagogastroscintigraphy is comparable to that of esophageal pH measurement for detection of reflux. It does not require positioning of a probe in the esophageal lumen. It provides quantitative parameters on esophageal transit, reflux and gastric voiding, and demonstrates pulmonary contamination. It is easy to perform and can be readily included in an outpatient clinic workup. Its sensitivity and reliability make it a useful tool for evaluation of therapeutic efficiency. The interlocking of various physiopathologic factors contributes to the polymorphism of respiratory manifestations of reflux [fr

  11. Educación en cine: memoria y patrimonio Film Education: Memory and Heritage

    Directory of Open Access Journals (Sweden)

    Michel Clarembeaux

    2010-10-01

    Full Text Available La educación para el cine en la era digital debería apoyarse en tres polos complementarios y estrechamente asociados: ver, analizar y hacer películas con jóvenes. Estos tres polos han de potenciarse mutuamente. El concepto de análisis creativo podría ser la argamasa que diera coherencia y eficiencia al dispositivo educativo. Si el cine es un arte, es sobre todo el arte de la memoria, tanto colectiva como individual. Este artículo sugiere que es posible hacer converger la pedagogía de la educación cinematográfica y la voluntad ciudadana de perpetuar la memoria, al tiempo que se protege el patrimonio cultural. El autor propone una serie de películas para ilustrar estos planteamientos, que ponen de relieve la dimensión económica y cultural de los medios de comunicación, respondiendo en esta convergencia a las más recientes directrices de la Unión Europea sobre creación y producción, desde esta perspectiva, de medios audiovisuales. El trabajo se inicia con una aproximación a la educación para el cine en la era digital. Posteriormente se recogen algunas singularidades de las «películas de la memoria», aludiendo concretamente a la tipología de los puntos de vista de los realizadores y al tratamiento de sus fuentes. Por último, se refleja el encuentro entre el concepto de «análisis creativo», fomentado por la educación cinematográfica, y la realización de videogramas hechos por jóvenes y dedicados a la memoria individual o colectiva.Film education in the digital age should be based on three closely-related and complementary fundamentals: to see, to analyze and to make films with young people; three basics that must interact and support each other. The concept of creative analysis could be the glue the binds this subject together, making it coherent and efficient for educational purposes. If cinema is an art, it is above all the art of memory, both individual and collective. This article suggests that we can join the

  12. La diversidad cultural a través de la Red: el caso del cine identitario

    Directory of Open Access Journals (Sweden)

    Margarita Ledo Andión

    2013-03-01

    Full Text Available La investigación «Cine, Diversidad y Redes» pretende aislar los principales estímulos o reticencias en el consumo de productos generados por pequeñas cinematografías, analizando el caso concreto de la circulación a través de las redes digitales interactivas de contenidos cinematográficos producidos en Galicia. Se trata de una investigación multicéntrica en la que participan universidades radicadas en Argentina, Brasil y Uruguay –países con una significativa presencia migratoria gallega–, a través de grupos de recepción principalmente universitarios, por su especial predisposición al consumo mediático intercultural. Nuestro trabajo aborda una determinación estadística del perfil sociodemográfico, axiológico y de hábitos de consumo de los grupos participantes, como proemio a su encuentro con una muestra representativa, integrada por obras cinematográficas producidas en Galicia entre 2003 y 2008, a los efectos de precisar la influencia de determinadas variables temáticas, formales y lingüísticas en la aceptación o recusación de determinados mensajes. La investigación responde, en suma, a los modelos de investigación básica y aplicada: básica, por su análisis de indicadores culturales determinantes del consumo cinematográfico en comunidades que, aunque geográficamente dispersas, preservan elementos identitarios como la lengua; y aplicada, en la medida en que la investigación contempla una transferencia de conocimiento a sus socios tecnológicos, coadyuvante de la apertura de nichos inexplorados de consumo transnacional, a través del potencial que actualmente brindan las redes digitales.

  13. Adolescencia e identidades LGBT en el cine español. Evolución, personajes y significados.

    Directory of Open Access Journals (Sweden)

    Juan Carlos Alfeo Álvarez

    2011-09-01

    Full Text Available Sea como sujeto o como objeto de deseo; aislado en su soledad esencial o vinculado a otros en relaciones simétricas o asimétricas, depositarios de la mayor ingenuidad o lúcidos manipuladores, víctimas o verdugos, cuando no ambas cosas, los personajes homosexuales en su tránsito por la adolescencia constituyen una categoría en sí mismos. Por otra parte el modo en el que han ido siendo representados dice mucho de la evolución del imaginario colectivo en relación con la cuestión homosexual. En este artículo se aborda el desarrollo de las representaciones de los adolescentes homosexuales en el cine español desde las primeras representaciones hasta la actualidad, analizando los personajes que han ido desfilando por las pantallas de la cinematografía española, así como la evolución de los roles y de los significados  que se han ido vinculando a cada uno de ellos.

  14. An introduction to vectors, vector operators and vector analysis

    CERN Document Server

    Joag, Pramod S

    2016-01-01

    Ideal for undergraduate and graduate students of science and engineering, this book covers fundamental concepts of vectors and their applications in a single volume. The first unit deals with basic formulation, both conceptual and theoretical. It discusses applications of algebraic operations, Levi-Civita notation, and curvilinear coordinate systems like spherical polar and parabolic systems and structures, and analytical geometry of curves and surfaces. The second unit delves into the algebra of operators and their types and also explains the equivalence between the algebra of vector operators and the algebra of matrices. Formulation of eigen vectors and eigen values of a linear vector operator are elaborated using vector algebra. The third unit deals with vector analysis, discussing vector valued functions of a scalar variable and functions of vector argument (both scalar valued and vector valued), thus covering both the scalar vector fields and vector integration.

  15. La estética y narrativa del vídeo musical como representante del discurso audiovisual hipermoderno

    OpenAIRE

    Pedrosa González, Carlos

    2015-01-01

    Desde que en 1981 la cadena norteamericana de televisión por cable MTV introdujera el videoclip como elemento transgresor en el entramado televisivo, no ha existido pieza audiovisual más permeable, impactante e innovadora en la reciente historia del audiovisual. Representante vivo de la sociedad postmoderna, heredero de las vanguardias y popular herramienta publicitaria; el vídeo musical ha conseguido aquello que el cine sigue intentando instaurar: llegar al “mainstream” social inculcando pre...

  16. Strain analysis in CRT candidates using the novel segment length in cine (SLICE) post-processing technique on standard CMR cine images

    International Nuclear Information System (INIS)

    Zweerink, Alwin; Allaart, Cornelis P.; Wu, LiNa; Beek, Aernout M.; Rossum, Albert C. van; Nijveldt, Robin; Kuijer, Joost P.A.; Ven, Peter M. van de; Meine, Mathias; Croisille, Pierre; Clarysse, Patrick

    2017-01-01

    Although myocardial strain analysis is a potential tool to improve patient selection for cardiac resynchronization therapy (CRT), there is currently no validated clinical approach to derive segmental strains. We evaluated the novel segment length in cine (SLICE) technique to derive segmental strains from standard cardiovascular MR (CMR) cine images in CRT candidates. Twenty-seven patients with left bundle branch block underwent CMR examination including cine imaging and myocardial tagging (CMR-TAG). SLICE was performed by measuring segment length between anatomical landmarks throughout all phases on short-axis cines. This measure of frame-to-frame segment length change was compared to CMR-TAG circumferential strain measurements. Subsequently, conventional markers of CRT response were calculated. Segmental strains showed good to excellent agreement between SLICE and CMR-TAG (septum strain, intraclass correlation coefficient (ICC) 0.76; lateral wall strain, ICC 0.66). Conventional markers of CRT response also showed close agreement between both methods (ICC 0.61-0.78). Reproducibility of SLICE was excellent for intra-observer testing (all ICC ≥0.76) and good for interobserver testing (all ICC ≥0.61). The novel SLICE post-processing technique on standard CMR cine images offers both accurate and robust segmental strain measures compared to the 'gold standard' CMR-TAG technique, and has the advantage of being widely available. (orig.)

  17. Strain analysis in CRT candidates using the novel segment length in cine (SLICE) post-processing technique on standard CMR cine images

    Energy Technology Data Exchange (ETDEWEB)

    Zweerink, Alwin; Allaart, Cornelis P.; Wu, LiNa; Beek, Aernout M.; Rossum, Albert C. van; Nijveldt, Robin [VU University Medical Center, Department of Cardiology, and Institute for Cardiovascular Research (ICaR-VU), Amsterdam (Netherlands); Kuijer, Joost P.A. [VU University Medical Center, Department of Physics and Medical Technology, Amsterdam (Netherlands); Ven, Peter M. van de [VU University Medical Center, Department of Epidemiology and Biostatistics, Amsterdam (Netherlands); Meine, Mathias [University Medical Center, Department of Cardiology, Utrecht (Netherlands); Croisille, Pierre; Clarysse, Patrick [Univ Lyon, UJM-Saint-Etienne, INSA, CNRS UMR 5520, INSERM U1206, CREATIS, Saint-Etienne (France)

    2017-12-15

    Although myocardial strain analysis is a potential tool to improve patient selection for cardiac resynchronization therapy (CRT), there is currently no validated clinical approach to derive segmental strains. We evaluated the novel segment length in cine (SLICE) technique to derive segmental strains from standard cardiovascular MR (CMR) cine images in CRT candidates. Twenty-seven patients with left bundle branch block underwent CMR examination including cine imaging and myocardial tagging (CMR-TAG). SLICE was performed by measuring segment length between anatomical landmarks throughout all phases on short-axis cines. This measure of frame-to-frame segment length change was compared to CMR-TAG circumferential strain measurements. Subsequently, conventional markers of CRT response were calculated. Segmental strains showed good to excellent agreement between SLICE and CMR-TAG (septum strain, intraclass correlation coefficient (ICC) 0.76; lateral wall strain, ICC 0.66). Conventional markers of CRT response also showed close agreement between both methods (ICC 0.61-0.78). Reproducibility of SLICE was excellent for intra-observer testing (all ICC ≥0.76) and good for interobserver testing (all ICC ≥0.61). The novel SLICE post-processing technique on standard CMR cine images offers both accurate and robust segmental strain measures compared to the 'gold standard' CMR-TAG technique, and has the advantage of being widely available. (orig.)

  18. Validación de la PCR en la detección de parásitos de Leishmania (Viannia spp. en Lutzomyia (Diptera: Psychodidae como herramienta en la definición de especies vectores.

    Directory of Open Access Journals (Sweden)

    Erika Santamaría

    2005-06-01

    Full Text Available lntroducción. En leishmaniasis se acepta que la reacción en cadena de la polimerasa (PCR ha simplificado el proceso de incriminación vectorial. Sin embargo, pocas veces se ha determinado la sensibilidad y la especificidad de cada PCR en la detección y la identificación del parasito en los flebótomos. Objetivo. Evaluar la aplicabilidad de la reacción en cadena de la polimerasa (PCR, basada en los iniciadores 81 y 82, en la detecci6n e identificación de parasitos de Leishmania (Viannia en insectos vectores enteros sin disecar. Metodología. Se determinó la sensibilidad y la especificidad de la PCR empleando diluciones de cultivo de parasitos de Leishmania spp. Se estableció el número máximo de hembras de Lutzomyia que pueden ser procesadas a la vez sin disminuir la sensibilidad de la PCR, procesando el ADN de grupos de una a cinco hembras de Lutzomyia en presencia del ADN de las diluciones de cultivo de parasitos. Además, se comparó en grupos de flebótomos infectados experimentalmente, la sensibilidad de esta PCR en la detección de infección por Leishmania (Viannia frente al método de busqueda de flagelados por disección del insecto y examen microscópico. Resultados. La PCR detectó desde un parasito de Leishmania (Viannia y permiti6 el procesamiento de hasta tres insectos enteros sin alterar la sensibilidad. Los porcentajes de infección experimental detectados con las dos tecnicas fueron similares, 33,3% con la PCR y 30% con el examen microscópico. Además, se confirmó que los iniciadores 81 y 82 son especificos para especies del subgenero Leishmania (Viannia. Conclusión. Los resultados obtenidos demuestran la sensibilidad y la especificidad de esta PCR y permiten recomendar su uso en la determinaci6n de infección natural con parasitos de Leishmania (Viannia en poblaciones silvestres de flebótomos.

  19. El cine de Lisandro Alonso: una guía de viaje para investigar la estética de la libertad

    Directory of Open Access Journals (Sweden)

    Jörg Türschmann

    2016-08-01

    Full Text Available Los filmes de Lisandro Alonso se pueden leer como libros de viaje. Son guías que muestran a sus protagonistas en búsqueda de algo o alguien. Solo son pretextos los destinos que los filmes exponen apenas. En su lugar acompañan a los solitarios que definen un tiempo y un espacio diferencial por su relación a la cámara y al montaje. Los protagonistas se comportan como investigadores que tienen que orientarse permanentemente en un ambiente desconocido que ellos mismos marcan por su presencia. Esta autorreflexividad establece el carácter investigador del cine de Alonso en forma de una metodología y de una estética de abstención.

  20. La reflexión metacientífica a través del cine: un estudio sobre los saberes docentes

    Directory of Open Access Journals (Sweden)

    Carola Astudillo

    2012-01-01

    Full Text Available Se argumenta el valor de la reflexión metacientífica en la formación del profesorado y se discute el aporte del cine como recurso didáctico para promover dicha reflexión. A partir de ello, se presenta una actividad de formación que consiste en el visionado e interpretación guiada de producciones cinematográficas que relatan procesos reales de investigación en ciencias. Tras su implementación con diferentes grupos de profesores y estudiantes de profesorado, se analizan los saberes docentes que la actividad moviliza. Para ello se definen algunos indicadores de reflexión metacientífica que refieren a la ciencia como empresa humana, en diálogo con la sociedad, la historia y la cultura.

  1. Cine y mitología de los orígenes en el nacionalismo norteamericano: el último mohícano

    Directory of Open Access Journals (Sweden)

    Rafael MENÉNDEZ FERNÁNDEZ

    2015-05-01

    Full Text Available Cine y nacionalismo presentan una interesante y continuada relación, sobre todo a través de géneros como el épico, histórico o de aventuras. Se estudia en el presente trabajo esta relación, a partir del film “El último mohicano”, dirigido por Michael Mann en 1992, que presenta elementos clave para entender la importancia de la conformación de los mitos sobre los orígenes de la nación norteamericana. El film, como la conocida novela en que se inspira libremente, centra su trama en aspectos y épocas claves de los movimientos nacionalistas, al entroncar además con el movimiento cultural del romanticismo y su peculiar manera de valorar el pasadohistórico y los orígenes de pueblos, culturas y naciones.

  2. Prácticas de activismo audiovisual con objetivo de integración social: el caso del colectivo Cine sin Autor (CsA

    Directory of Open Access Journals (Sweden)

    Ana María Sedeño Valdellós

    2016-03-01

    Full Text Available En los últimos años viene produciéndose una cierta tendencia hacia el empleo de la tecnología audiovisual por parte de colectivos activistas: con un objetivo transformador de realidades, las prácticas de activismo audiovisual se han enfocado a propiciar el empoderamiento de colectivos sociales como generadores de universos simbólicos propios. El texto reflexiona sobre el audiovisual como integración social desde un enfoque generalista y atendiendo a sus precedentes. En primer lugar, se comienza una exploración teórica sobre el concepto de activismo audiovisual y sus posibilidades educativas, activistas y para la integración social; en segundo lugar, se aborda un análisis en torno al trabajo del colectivo Cine sin Autor (CsA que, con una metodología participativa, construye “procesos audiovisuales abiertos” con comunidades y colectivos desfavorecidos.

  3. Myocardial strain assessment by cine cardiac magnetic resonance imaging using non-rigid registration.

    Science.gov (United States)

    Tsadok, Yossi; Friedman, Zvi; Haluska, Brian A; Hoffmann, Rainer; Adam, Dan

    2016-05-01

    To evaluate a novel post-processing method for assessment of longitudinal mid-myocardial strain in standard cine cardiac magnetic resonance (CMR) imaging sequences. Cine CMR imaging and tagged cardiac magnetic resonance imaging (TMRI) were performed in 15 patients with acute myocardial infarction (AMI) and 15 healthy volunteers served as control group. A second group of 37 post-AMI patients underwent both cine CMR and late gadolinium enhancement (LGE) CMR exams. Speckle tracking echocardiography (STE) was performed in 36 of these patients. Cine CMR, TMRI and STE were analyzed to obtain longitudinal strain. LGE-CMR datasets were analyzed to evaluate scar extent. Comparison of peak systolic strain (PSS) measured from CMR and TMRI yielded a strong correlation (r=0.86, pcine CMR data. The method was found to be highly correlated with strain measurements obtained by TMRI and STE. This tool allows accurate discrimination between different transmurality states of myocardial infarction. Copyright © 2015 Elsevier Inc. All rights reserved.

  4. Cine MRI of swallowing in patients with advanced oral or oropharyngeal carcinoma: a feasibility study

    NARCIS (Netherlands)

    Kreeft, Anne Marijn; Rasch, Coen R. N.; Muller, Sara H.; Pameijer, Frank A.; Hallo, Eeke; Balm, Alfons J. M.

    2012-01-01

    Treatment of oral and oropharyngeal cancer may cause dysphagia. Purpose is to examine whether cine magnetic resonance imaging (MRI) yields additional information compared to standard examination in the evaluation of posttreatment dysphagia and mobility of oral and oropharyngeal structures.

  5. Cine-magnetic resonance imaging evaluation of communication between middle cranial fossa arachnoid cysts and cisterns

    International Nuclear Information System (INIS)

    Eguchi, Takahiko; Nikaido, Yuji; Shiomi, Kazuaki; Fujimoto, Takatoshi; Otsuka, Hiroyuki; Takeuchi, Hiroshi; Taoka, Toshiaki.

    1996-01-01

    Cine-magnetic resonance (MR) imaging examinations were performed in 10 patients with middle cranial fossa arachnoid cysts to evaluate communication between the cysts and the normal cerebrospinal fluid (CSF) space. Eight of 10 patients were evaluated by time of flight cine-MR imaging, and two by phase contrast cine-MR imaging. Two patients underwent membranectomy of the cysts, and were evaluated both pre-and postoperatively. Computed tomography cisternography was used to confirm communication between the cysts and the surrounding cisterns. Pulsatile fluid motion within the cysts was present in all patients. However, marked fluid motion and jet flow between the cysts and the surrounding cisterns were only observed in communicating cysts. In the two patients who underwent membranectomy, postoperative examination found greater fluid motion and jet flow not previously present. Cine-MR imaging demonstration of marked pulsatile fluid motion accompanied by jet flow suggests that a cyst communicates with the normal CSF space. (author)

  6. Usefulness of true FISP cine MR imaging in patients with poor cardiac function

    International Nuclear Information System (INIS)

    Sakuma, Toshiharu; Yamada, Naoaki; Motooka, Makoto; Enomoto, Naoyuki; Maeshima, Isamu; Matsuda, Kazuhide; Urayama, Shinichi; Ikeo, Miki

    2002-01-01

    This study was done to assess the value of True FISP cine in patients with poor cardiac function. True FISP cine and FLASH cine imaging were performed on a 1.5 T machine. Both short axis and horizontal long axis imaging sections were used. The imaging sections used a Matrix (120 x 128), FOV (24 x 32 cm), and had a slice thickness of 8 mm. The imaging time for True FISP cine was 8 heart beats and 17 heart beats for FLASH cine. The contrast-to-noise ratio between the blood and myocardium (CNR) was measured at enddiastole and endsystole. The subjects in the study were 10 healty volunteers (average age 26.5±3.2 years) and 12 patients with hypofunction (average age 53.9±13.2 years). In the volunteers, the CNR of the short axis imaging was similar in both True FISP (24.6±3.7) and FLASH (23.4±5.9). In the patients with poor cardiac function however, the CNR of True FISP was larger than FLASH in both the short and long axis. In the short axis (22.7±6.1 vs. 17.9±5.3, P<0.01) and in the long axis (17.4±4.3 vs. 9.3±4.0, P<0.01). We conclude that True FISP cine has a higher contrast in a shorter imaging time than FLASH cine. True FISP cine is especially useful in patients with poor cardiac function. (author)

  7. Feasibility of vocal fold abduction and adduction assessment using cine-MRI.

    Science.gov (United States)

    Baki, Marina Mat; Menys, Alex; Atkinson, David; Bassett, Paul; Morley, Simon; Beale, Timothy; Sandhu, Guri; Naduvilethil, Georgekutty; Stevenson, Nicola; Birchall, Martin A; Punwani, Shonit

    2017-02-01

    Determine feasibility of vocal fold (VF) abduction and adduction assessment by cine magnetic resonance imaging (cine-MRI) METHODS: Cine-MRI of the VF was performed on five healthy and nine unilateral VF paralysis (UVFP) participants using an axial gradient echo acquisition with temporal resolution of 0.7 s. VFs were continuously imaged with cine-MRI during a 10-s period of quiet respiration and phonation. Scanning was repeated twice within an individual session and then once again at a 1-week interval. Asymmetry of VF position during phonation (VF phonation asymmetry, VFPa) and respiration (VF respiration asymmetry, VFRa) was determined. Percentage reduction in total glottal area between respiration and phonation (VF abduction potential, VFAP) was derived to measure overall mobility. An un-paired t-test was used to compare differences between groups. Intra-session, inter-session and inter-reader repeatability of the quantitative metrics was evaluated using intraclass correlation coefficient (ICC). VF position asymmetry (VFPa and VFRa) was greater (p=0.012; p=0.001) and overall mobility (VFAP) was lower (p=0.008) in UVFP patients compared with healthy participants. ICC of repeatability of all metrics was good, ranged from 0.82 to 0.95 except for the inter-session VFPa (0.44). Cine-MRI is feasible for assessing VF abduction and adduction. Derived quantitative metrics have good repeatability. • Cine-MRI is used to assess vocal folds (VFs) mobility: abduction and adduction. • New quantitative metrics are derived from VF position and abduction potential. • Cine-MRI able to depict the difference between normal and abnormal VF mobility. • Cine-MRI derived quantitative metrics have good repeatability.

  8. Comparison of fluoro and cine coronary angiography: balancing acceptable outcomes with a reduction in radiation dose.

    Science.gov (United States)

    Olcay, Ayhan; Guler, Ekrem; Karaca, Ibrahim Oguz; Omaygenc, Mehmet Onur; Kizilirmak, Filiz; Olgun, Erkam; Yenipinar, Esra; Cakmak, Huseyin Altug; Duman, Dursun

    2015-04-01

    Use of last fluoro hold (LFH) mode in fluoroscopy, which enables the last live image to be saved and displayed, could reduce radiation during percutaneous coronary intervention when compared with cine mode. No previous study compared coronary angiography radiation doses and image quality between LFH and conventional cine mode techniques. We compared cumulative dose-area product (DAP), cumulative air kerma, fluoroscopy time, contrast use, interobserver variability of visual assessment between LFH angiography, and conventional cine angiography techniques. Forty-six patients were prospectively enrolled into the LFH group and 82 patients into the cine angiography group according to operator decision. Mean cumulative DAP was higher in the cine group vs the LFH group (50058.98 ± 53542.71 mGy•cm² vs 11349.2 ± 8796.46 mGy•cm²; Pcine group vs the LFH group (3.87 ± 5.08 minutes vs 1.66 ± 1.51 minutes; Pcine group vs the LFH group (112.07 ± 43.79 cc vs 88.15 ± 23.84 cc; Pcine and LFH angiography groups (0.66680 ± 0.19309 vs 0.54193 ± 0.31046; P=.20). Radiation doses, contrast use, and fluoroscopy times are lower in fluoroscopic LFH angiography vs cine angiography. Interclass variability of visual stenosis estimation between three operators was not different between cine and LFH groups. Fluoroscopic LFH images conventionally have inferior diagnostic quality when compared with cine coronary angiography, but with new angiographic systems with improved LFH image quality, these images may be adequate for diagnostic coronary angiography.

  9. Metodología de la investigación y cine comercial: claves de una experiencia docente

    Directory of Open Access Journals (Sweden)

    M.T. Icart-Isern

    Full Text Available Introducción. El cine se ha configurado, ya desde sus inicios, como una de las recreaciones humanas más extraordinarias que existen desde la perspectiva de la comunicación. Objetivo. El objetivo de este texto es presentar una experiencia docente en la que se empleó cine comercial (CC en el desarrollo de la asignatura optativa ‘Investigación en salud: métodos y técnicas’, que se imparte en la Escuela de Enfermería de la Universitat de Barcelona. Desarrollo. Los contenidos de esta asignatura son los habituales en los cursos de investigación, y lo más interesante fue el empleo del CC, que se convirtió en el material (objeto de estudio. En el transcurso de la asignatura, el alumno debía realizar una serie de actividades: revisión bibliográfica, preparación de un cuestionario, selección y visualización de una película de la que debía elaborar la correspondiente ficha técnica y un informe sobre los aspectos referidos a la enfermedad, el paciente, los profesionales y los valores, sentimientos y emociones asociados al problema de salud. Conclusiones. La experiencia puso de manifiesto la importancia de la observación atenta de las escenas para captar los mensajes no verbales relacionados con el problema de salud; la necesidad de adquirir habilidades para el manejo de las bases de datos bibliográficas (Medline, CINAHL, etc., y la conveniencia de una mayor formación en el lenguaje cinematográfico para un mejor aprovechamiento didáctico del CC.

  10. (Representación del profesorado de Educación Física en el cine

    Directory of Open Access Journals (Sweden)

    José-Ignacio Barbero-González

    2017-01-01

    Full Text Available Objetivo: analizar la (representación del profesorado de Educación Física (EF, en adelante en el cine. Tomando como referencia el trabajo de McCullick, Belcher, Hardin y Hardin (2003 basado en 18 películas estadounidenses del periodo 1990-2000, se amplía la muestra (épocas, países de origen y modalidad-características de las películas y se contrastan las conclusiones. Método: análisis de contenido reproduciendo en buena medida el proceso seguido en el estudio mencionado. Conclusiones: un gran acuerdo y bastantes discrepancias con el trabajo de referencia. El acuerdo concierne a la similitud de idiosincrasia e identidad del entre el profesor de EF y el entrenador deportivo de modo que las diferencias entre ellos son indescifrables. Los desacuerdos giran en torno a i las carencias en el quehacer pedagógico de los docentes de EF en comparación con los de las otras áreas; ii la idea de que el profesorado de EF, por acción u omisión, acose o humille a sus alumnos: si bien dicha caracterización aparece, no siempre es así y, además, en el caso del bullying, los docentes de EF se muestran tan incompetentes e insensibles como los de las otras materias; y iii sobre la caracterización de las profesoras como “butch lesbians”, de los docentes varones como “hormone-raging heterosexuals” y, también estos últimos, como graciosillos o maleducados bufones.

  11. Value of cine MRI for better visualization of the proximal small bowel in normal individuals

    International Nuclear Information System (INIS)

    Torkzad, Michael R.; Blomqvist, Lennart; Vargas, Roberto; Tanaka, Chikako

    2007-01-01

    While enteroclysis seems to be the most efficacious method in achieving bowel distension, enterographic methods have become widespread due to the unpleasantness of enteroclysis and the radiation involved with positioning the catheter. Cine images in MRI can be done without radiation. Our aim is to see if and how cine MR imaging can improve visualization of bowel loops by capturing them while distended. Ten healthy individuals were asked to drink up to 2,000 ml of an oral solution made locally over a 60-min period. Then they underwent MRI using coronal balanced fast field echo (b-FFE) covering small bowel loops. If the initial exam revealed collapsed bowel loops an additional 50 mg of erythromycine was given intravenously with the subject still in the scanner and then cine imaging was performed. The degree of distension of different segments of the small bowel was measured before and after cine imaging and compared. The distension score was significantly higher after addition of the cine images as well, being only significant for depiction of the duodenum and jejunum. Our preliminary study suggests that cine MRI can give better image depiction of the proximal small bowel in healthy volunteers, perhaps circumventing the need for enteroclysis in some cases. There is a need for validation of these results in patients with small bowel disease. (orig.)

  12. Peristalsis gap sign at cine magnetic resonance imaging for diagnosing strangulated small bowel obstruction. Feasibility study

    International Nuclear Information System (INIS)

    Takahara, Taro; Kwee, T.C.; Haradome, Hiroki

    2011-01-01

    The aim of this study was to determine the feasibility of cine magnetic resonance imaging (MRI) for diagnosing strangulated small bowel obstruction (SBO). This study included 38 patients with clinically confirmed SBO who had undergone cine MRI. Cine MRI scans were evaluated regarding the presence of the 'peristalsis gap sign' (referring to an akinetic or severely hypokinetic closed loop), indicating strangulation. Computed tomography (CT) was performed in 34 of 38 patients with (n=25) or without (n=9) contrast enhancement. CT images were evaluated using a combination of criteria (presence of hyperattenuation, poor contrast enhancement, mesenteric edema, wall thickening, massive ascites) indicating strangulation. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of cine MRI and CT for the diagnosis of strangulation were calculated and compared using surgical findings and the clinical course as the reference standard. Sensitivity, specificity, PPV, and NPV of cine MRI were 100%, 92.9%, 83.3%, and 100%, respectively; and those of CT (of which 26.5% was performed without contrast enhancement) were 66.7%, 92.0%, 75.0%, and 88.5%, respectively. There was no significant difference in diagnostic accuracy between the two methods (P=0.375). Cine MRI is a feasible and promising technique for diagnosing strangulation. (author)

  13. Three-dimensional cine MRI in free-breathing infants and children with congenital heart disease

    Energy Technology Data Exchange (ETDEWEB)

    Seeger, Achim; Fenchel, Michael C.; Kramer, Ulrich; Bretschneider, Christiane; Doering, Joerg; Claussen, Claus D.; Miller, Stephan [University of Tuebingen (Germany). Department of Diagnostic and Interventional Radiology; Greil, Gerald F. [St. Thomas Hospital, Division of Imaging Sciences, King' s College London (United Kingdom); Martirosian, Petros [University of Tuebingen, Section of Experimental Radiology, Tuebingen (Germany); Sieverding, Ludger [University of Tuebingen, Department of Pediatric Cardiology, Tuebingen (Germany)

    2009-12-15

    Patients with congenital heart disease frequently have complex cardiac and vascular malformations requiring detailed non-invasive diagnostic evaluation including functional parameters. To evaluate the morphological and functional information provided by a novel 3-D cine steady-state free-precession (SSFP) sequence. Twenty consecutive children (mean age 2.2 years, nine boys) were examined using a 1.5-T MR system including 2-D cine gradient-recalled-echo sequences, static 3-D SSFP and 3-D cine SSFP sequences. Measurement of ventricular structures and volumes showed close agreement between the 3-D cine SSFP sequence and the 2-D cine gradient-recalled-echo and static 3-D SSFP sequences (left ventricular volumes mean difference 1.0-1.9 ml and 8.8-11.4%, respectively; right ventricular volumes 1.7-2.1 ml and 9.9-16.9%, respectively). No systematic bias was observed. 3-D cine MRI provides anatomic as well as functional information with sufficient spatial and temporal resolution in free-breathing infants with congenital heart disease. (orig.)

  14. Three-dimensional cine MRI in free-breathing infants and children with congenital heart disease

    International Nuclear Information System (INIS)

    Seeger, Achim; Fenchel, Michael C.; Kramer, Ulrich; Bretschneider, Christiane; Doering, Joerg; Claussen, Claus D.; Miller, Stephan; Martirosian, Petros; Sieverding, Ludger

    2009-01-01

    Patients with congenital heart disease frequently have complex cardiac and vascular malformations requiring detailed non-invasive diagnostic evaluation including functional parameters. To evaluate the morphological and functional information provided by a novel 3-D cine steady-state free-precession (SSFP) sequence. Twenty consecutive children (mean age 2.2 years, nine boys) were examined using a 1.5-T MR system including 2-D cine gradient-recalled-echo sequences, static 3-D SSFP and 3-D cine SSFP sequences. Measurement of ventricular structures and volumes showed close agreement between the 3-D cine SSFP sequence and the 2-D cine gradient-recalled-echo and static 3-D SSFP sequences (left ventricular volumes mean difference 1.0-1.9 ml and 8.8-11.4%, respectively; right ventricular volumes 1.7-2.1 ml and 9.9-16.9%, respectively). No systematic bias was observed. 3-D cine MRI provides anatomic as well as functional information with sufficient spatial and temporal resolution in free-breathing infants with congenital heart disease. (orig.)

  15. Atrapar la emoción: Hollywood y el Grupo Dogma 95 ante el cine digital

    Directory of Open Access Journals (Sweden)

    Marzal Felici, José Javier

    2003-03-01

    Full Text Available La tecnología del cine digital representa, no sólo nuevas formas de gestionar y organizar la producción cinematográfica, sino sobre todo abre la puerta para la exploración de nuevas formas de construcción del relato. En primer lugar, realizaremos una valoración general de lo que está suponiendo la «migración digital» para la industria del cine. Esto pasa por reflexionar sobre la importancia de la tecnología en la historia del cine y revisar las transformaciones que se están produciendo en la actualidad. Veremos cómo la construcción de mundos virtuales en el cine más industrial se enfrenta al reto de la «captura» de la emoción. Finalizaremos este bloque con una caracterización del cine hollywoodiense que constituye un «cine de atracciones»...

  16. Free-breathing cine CT for the diagnosis of tracheomalacia in young children

    International Nuclear Information System (INIS)

    Goo, Hyun Woo

    2013-01-01

    Tracheomalacia is characterized by excessive expiratory collapse of the trachea. To investigate the accuracy of free-breathing cine CT for diagnosis of tracheomalacia in young children with bronchoscopy as reference standard. In a retrospective study (May 2001-July 2008), a patient group (n = 27) of children with bronchoscopic evidence of tracheomalacia, and a control group (n = 320) underwent free-breathing cine CT. The tracheal shape on free-breathing cine CT was classified as round, lunate, elongated or crescentic. Cross-sectional area change of the trachea and age were compared between the groups and the diagnostic performance of free-breathing cine CT for tracheomalacia was evaluated. The patient group showed significantly greater cross-sectional area change of the trachea (57.2% ± 22.2% vs. 10.6% ± 11.2%, P < 0.001) than the control group. If a cross-sectional area change of the trachea of 31.6% was used as a cut-off value for the diagnosis of tracheomalacia, the sensitivity, specificity and accuracy of cine CT were 96.3% (26/27), 97.2% (311/320) and 97.1% (337/347), respectively. If a crescentic shape during the expiratory phase was used, the sensitivity, specificity and accuracy were 51.9% (14/27), 98.8% (316/320) and 95.1% (330/347), respectively. Free-breathing cine CT has potential to provide the diagnosis of tracheomalacia in young children. (orig.)

  17. The Role of Cine Flow Magnetic Resonance Imaging in Patients with Chiari 0 Malformation.

    Science.gov (United States)

    Ozsoy, Kerem Mazhar; Oktay, Kadir; Cetinalp, Nuri Eralp; Gezercan, Yurdal; Erman, Tahsin

    2018-01-01

    To define the role of phase-contrast cine magnetic resonance imaging (MRI) in deciding the therapeutic strategy and underlying pathophysiology resulting in syrinx formation in patients with Chiari type 0 malformation. Seven patients who were admitted to our clinic with the diagnosis of Chiari 0 malformation from January 2005 to July 2016 were enrolled in the study. All patients underwent a detailed preoperative neurological examination. Entire neuroaxis MRI and phase-contrast cine MRI were obtained preoperatively and postoperatively. Seven patients (5 female and 2 male) with Chiari type 0 malformation fulfilled the inclusion criteria. All of the patients had absent cine flow at the craniovertebral junction except two patients. These five patients underwent surgical interventions; suboccipital decompression and duraplasty. All of them showed both clinical and radiological improvement in the postoperative period. Cine flow MRI appears to be a useful tool in the management of patients with Chiari 0 malformation. There was a good correlation between the clinical presentation and cine flow preoperatively, and between clinical improvement and cine flow in the postoperative period.

  18. Motion Correction using Coil Arrays (MOCCA) for Free-Breathing Cardiac Cine MRI

    Science.gov (United States)

    Hu, Peng; Hong, Susie; Moghari, Mehdi H.; Goddu, Beth; Goepfert, Lois; Kissinger, Kraig V.; Hauser, Thomas H.; Manning, Warren J; Nezafat, Reza

    2014-01-01

    In this study, we present a motion compensation technique based on coil arrays (MOCCA) and evaluate its application in free-breathing respiratory self-gated cine MRI. MOCCA takes advantages of the fact that motion-induced changes in k-space signal are modulated by individual coil sensitivity profiles. In the proposed implementation of MOCCA self-gating for free-breathing cine MRI, the k-space center line is acquired at the beginning of each k-space segment for each cardiac cycle with 4 repetitions. For each k-space segment, the k-space center line acquired immediately before was used to select one of the 4 acquired repetitions to be included in the final self-gated cine image by calculating the cross-correlation between the k-space center line with a reference line. The proposed method was tested on a cohort of healthy adult subjects for subjective image quality and objective blood-myocardium border sharpness. The method was also tested on a cohort of patients to compare the left and right ventricular volumes and ejection fraction measurements with that of standard breath-hold cine MRI. Our data indicate that the proposed MOCCA method provides significantly improved image quality and sharpness compared to free-breathing cine without respiratory self-gating, and provides similar volume measurements compared with breath-hold cine MRI. PMID:21773986

  19. Evaluation of atrial, ventricular and atrioventricular septal defects by cine magnetic resonance imaging

    International Nuclear Information System (INIS)

    Akagi, Teiji; Kato, Hirohisa; Kiyomatsu, Yumi; Saiki, Kuninobu; Suzuki, Kazushige; Eto, Takaharu

    1992-01-01

    Cine magnetic resonance imaging (MRI) was performed on 20 patients (mean age: 5.3±4.4 years) with atrial, ventricular, or atrioventricular septal defects for evaluation of cardiac structure and blood flow. Prior to cine MRI, electrocardiographycally gated MRI using multislice scquisition was performed on all patients to localize optimal slice location. Cine-MRI was obtained with a 30 deg flip angle, 15 msec echo time, and 30 msec pulse repetition time, on a 256 x 256 or 128 x 128 acquisition matrix. Abnormalities of cardiac structure were well defined in all patients by gated cardiac imaging. In 18 of the 20 patients, cine-MRI was able to detect shunt flow, visualized as a low intensity signal in comparison with the surrounding blood flow. Cine-MRI can provide not only accurate anatomy of cardiac structures but functional assessment of the cardiac chamber, wall topology and flow relations. Cine-MRI will become an important noninvasive technique for assessment of anatomy and physiology in congenital heart disease. (author)

  20. Usefulness of breath-hold cardiac cine MR imaging with a middle field MRI system

    Energy Technology Data Exchange (ETDEWEB)

    Matsumura, Kentaro; Sato, Kiyoto; Aono, Masaki; Inoshita, Kenji; Utsumi, Naoko [Kagawa Inoshita Hospital, Ohnohara (Japan)

    1999-07-01

    To assess the accuracy of contrast-enhanced, single breath-hold cine MR imaging in calculating left ventricular volume and ejection fraction, we compared MR measurements with those obtained by using cine ventriculography in 60 patients. Fast cine MR images were acquired with a middle field MR system (0.5 T). A breath-hold single slice multi-phase fast gradient-echo (Fast Card) sequence was used to obtain fast cine MR images with the following parameters; TR of 16 ms, TE of 3 ms, flip angle of 30 degree, matrix elements of 256 x 128, view per segment of 6, field of view of 350 x 260 mm and one excitation. Left ventricular end-diastolic volume and ejection fraction obtained with contrast-enhanced Fast Card correlated well with those obtained with cine ventriculography (end-diastolic volume, y=1.00x+14.0, r=0.904, p<0.001; ejection fraction, y=0.961x+2.8, r=0.936, p<0.001). Our results show that contrast enhanced breath-hold cardiac cine MR imaging on horizontal long-axis view using a middle field MR system is an accurate method for evaluating left ventricular volume and ejection fraction. (author)

  1. The stormwater drain system as a pollution vector of the seashore in Fortaleza (Ceará State, Brazil Sistema de galerias pluviais como vetor poluente da zona costeira de Fortaleza, Ceará, Brasil

    Directory of Open Access Journals (Sweden)

    Regine H.S.F. Vieira

    2002-12-01

    Full Text Available The aim of this study was to make a diagnosis of coastal pollution through bacteriological analysis of water taken from stormwater drain systems and the nearby seashore. The results were submitted to statistical analysis as to differences in the Most Probable Number (MPN of fecal coliform (FC found between the stormwater drain systems and adjacent seashore locations both at low and high tides. The main conclusions were: (a most water samples collected from the stormwater systems presented MPN values for FC above 1,000 per 100 ml; (b only 20% of the samples from the adjacent seashore presented MPN values for FC above 1,000 per 100 ml, a fact which may be explained by the distance between the drain system outlets and the actual seashore; (c FC/100 ml values were invariably higher in the stormwater drain systems than in seawater; (d out of the 180 strains isolated, 118 were Escherichia coli; (e the highest in-sewer pollution rate was found at the sampling location in front of Imperial Othon Palace Hotel (IO-SEW, characterized by the presence of an everlasting puddle, while the most polluted seawater sample was taken in front of Statue of Iracema (SI-SEA; (g the high tide regime enhances the chance of pollution of the coastal zone by fecal coliforms; (h the high pollution indices by fecal coliforms can only be accounted for by the existence of illegal sewage pipelines connected to the stormwater drain systems.O objetivo deste trabalho foi realizar o diagnóstico da poluição costeira, através da análise bacteriológica da água de galerias pluviais e da zona marinha adjacente. Entre setembro de 2000 e março de 2001 foram obtidas 90 amostras, sendo 45 nas galerias e 45 na adjacente zona marinha, localizadas em frente aos seguintes pontos de coleta: Esplanada Hotel, Imperial Othon Palace e Estátua de Iracema. Os resultados foram apresentados como o Número Mais Provável (NMP de coliformes fecais por 100 ml (CF/100ml, e submetidos a compara

  2. Strain analysis in CRT candidates using the novel segment length in cine (SLICE) post-processing technique on standard CMR cine images.

    Science.gov (United States)

    Zweerink, Alwin; Allaart, Cornelis P; Kuijer, Joost P A; Wu, LiNa; Beek, Aernout M; van de Ven, Peter M; Meine, Mathias; Croisille, Pierre; Clarysse, Patrick; van Rossum, Albert C; Nijveldt, Robin

    2017-12-01

    Although myocardial strain analysis is a potential tool to improve patient selection for cardiac resynchronization therapy (CRT), there is currently no validated clinical approach to derive segmental strains. We evaluated the novel segment length in cine (SLICE) technique to derive segmental strains from standard cardiovascular MR (CMR) cine images in CRT candidates. Twenty-seven patients with left bundle branch block underwent CMR examination including cine imaging and myocardial tagging (CMR-TAG). SLICE was performed by measuring segment length between anatomical landmarks throughout all phases on short-axis cines. This measure of frame-to-frame segment length change was compared to CMR-TAG circumferential strain measurements. Subsequently, conventional markers of CRT response were calculated. Segmental strains showed good to excellent agreement between SLICE and CMR-TAG (septum strain, intraclass correlation coefficient (ICC) 0.76; lateral wall strain, ICC 0.66). Conventional markers of CRT response also showed close agreement between both methods (ICC 0.61-0.78). Reproducibility of SLICE was excellent for intra-observer testing (all ICC ≥0.76) and good for interobserver testing (all ICC ≥0.61). The novel SLICE post-processing technique on standard CMR cine images offers both accurate and robust segmental strain measures compared to the 'gold standard' CMR-TAG technique, and has the advantage of being widely available. • Myocardial strain analysis could potentially improve patient selection for CRT. • Currently a well validated clinical approach to derive segmental strains is lacking. • The novel SLICE technique derives segmental strains from standard CMR cine images. • SLICE-derived strain markers of CRT response showed close agreement with CMR-TAG. • Future studies will focus on the prognostic value of SLICE in CRT candidates.

  3. Cine: Line excitation by infrared fluorescence in cometary atmospheres

    Science.gov (United States)

    de Val-Borro, Miguel; Cordiner, Martin A.; Milam, Stefanie N.; Charnley, Steven B.

    2017-03-01

    CINE is a Python module for calculating infrared pumping efficiencies that can be applied to the most common molecules found in cometary comae such as water, hydrogen cyanide or methanol. Excitation by solar radiation of vibrational bands followed by radiative decay to the ground vibrational state is one of the main mechanisms for molecular excitation in comets. This code calculates the effective pumping rates for rotational levels in the ground vibrational state scaled by the heliocentric distance of the comet. Line transitions are queried from the latest version of the HITRAN spectroscopic repository using the astroquery affiliated package of astropy. Molecular data are obtained from the LAMDA database. These coefficients are useful for modeling rotational emission lines observed in cometary spectra at sub-millimeter wavelengths. Combined with computational methods to solve the radiative transfer equations based, e.g., on the Monte Carlo algorithm, this model can retrieve production rates and rotational temperatures from the observed emission spectrum.

  4. New developments in imaging: Sonography, cine-CT, MRI

    International Nuclear Information System (INIS)

    Otto, R.J.; Higgins, C.B.

    1987-01-01

    The book can be conveniently subdivided into three sections: the first on magnetic resonance imaging the second on cine-computed tomography and the third on advances in ultrasound (US). The MR imaging section includes two chapters: the first on indications for MR in abdominal disease (a cookbook layout of indications for MR imaging versus CT) and the second on MR imaging of the heart. There are also chapters on MR imaging and US in the pelvis, contrast agent principles, and a chapter on imaging renal tumors. The third section, on US, contains chapters on the liver and gastrointenstinal disease, interventional US sonography during neurosurgery, state-of-the-art echocardiography. Doppler flow imaging, contrast media for sonography, endometrial sonography, and high-resolution US in the first trimester. The final chapter is presented as a scientific paper rather than as a chapter in a book and has no illustrations

  5. Cine-oesophago-gastroscintigraphy: assessment of digestive function in paediatrics

    Energy Technology Data Exchange (ETDEWEB)

    Guillet, J. (Hopital Pellegrin, 33 - Bordeaux (France))

    1984-05-15

    Cine-oesophago-gastroscintigraphy (COGS) can assess structure and function of the oesophagogastrointestinal tract. With this non-invasive method, the dosimetry is very low and quantification is easy. Milk or water labelled by sup(99m)Tc sulfocolloids are drunk by the patient. The transit is continuously monitored by a gamma camera and a computer. The esophageal transit time is useful in studying impairment of peristaltic motion. Fistula, diverticula and stenosis are easily detected. The sensitivity of this technique for the search of gastroesophageal reflux is as great as pH-metry. The quantification is of great interest to assess the severity of the reflux and to measure treatment efficacity. Slow rates of gastric emptying are associated with some of the reflux, and pyloric stenosis. Pulmonary contamination can be discovered in patients with gastro oesophageal reflux.

  6. El silencio del monstruo: imagénes espectrales en el cine de terror americano de comienzos del sonoro / Silence of the Monster. Ghostly Images in American Horror Film at the Beginning of Sound

    Directory of Open Access Journals (Sweden)

    Roberto Cueto

    2016-09-01

    Full Text Available Drácula y El doctor Frankenstein inauguraron en 1931 la producción de cine de terror en el cine sonoro al presentar a dos de los iconos por excelencia del género. Sin embargo, al ser películas producidas en el período de transición del cine mudo al sonoro, hacen gala de una característica especial que las diferencia notablemente de la posterior producción terrorífica de Hollywood: la presentación de la monstruosidad sin el recurso de la música extradiegética, lo que genera en la narración un efecto de «agujero» de silencio. En posteriores producciones de cine de terror se intentará paliar estos lapsos de silencio con el empleo de la música extradiegética o ciertos efectos de sonido, lo que parece indicar que, para la norma del cine clásico americano, eran defectos que debían ser corregidos. El siguiente ensayo tiene como objeto subrayar cómo esa llamativa presencia del silencio confiere a la representación de la monstruosidad cierta cualidad de «imágenes espectrales» o «cuerpos siniestros» que el cine de Hollywood prefirió evitar. Por otra parte, se analizará también por qué fue tan importante para el cine clásico americano el empleo de la música extradiegética, ya que cumplía una serie de funciones necesarias para sus estrategias narrativas: una mayor implicación del espectador, una adscripción a los códigos del género terrorífico y un efecto de «tridimensionalidad» aplicado a las imágenes bidimensionales.Palabras clave: música cinematográfica, cine de terror, sonido cinematográfico, transición del cine mudo al sonoro.AbstractDracula and Frankenstein, both released in 1931, inaugurated the production of horror films in Hollywood when they presented the two greatest icons of the genre. As films produced in the transitional period from silent to sound film, both showcase special features that distinguished them from posterior horror films in Hollywood: the introduction of the monstrosity without

  7. Dose calculation with respiration-averaged CT processed from cine CT without a respiratory surrogate

    International Nuclear Information System (INIS)

    Riegel, Adam C.; Ahmad, Moiz; Sun Xiaojun; Pan Tinsu

    2008-01-01

    Dose calculation for thoracic radiotherapy is commonly performed on a free-breathing helical CT despite artifacts caused by respiratory motion. Four-dimensional computed tomography (4D-CT) is one method to incorporate motion information into the treatment planning process. Some centers now use the respiration-averaged CT (RACT), the pixel-by-pixel average of the ten phases of 4D-CT, for dose calculation. This method, while sparing the tedious task of 4D dose calculation, still requires 4D-CT technology. The authors have recently developed a means to reconstruct RACT directly from unsorted cine CT data from which 4D-CT is formed, bypassing the need for a respiratory surrogate. Using RACT from cine CT for dose calculation may be a means to incorporate motion information into dose calculation without performing 4D-CT. The purpose of this study was to determine if RACT from cine CT can be substituted for RACT from 4D-CT for the purposes of dose calculation, and if increasing the cine duration can decrease differences between the dose distributions. Cine CT data and corresponding 4D-CT simulations for 23 patients with at least two breathing cycles per cine duration were retrieved. RACT was generated four ways: First from ten phases of 4D-CT, second, from 1 breathing cycle of images, third, from 1.5 breathing cycles of images, and fourth, from 2 breathing cycles of images. The clinical treatment plan was transferred to each RACT and dose was recalculated. Dose planes were exported at orthogonal planes through the isocenter (coronal, sagittal, and transverse orientations). The resulting dose distributions were compared using the gamma (γ) index within the planning target volume (PTV). Failure criteria were set to 2%/1 mm. A follow-up study with 50 additional lung cancer patients was performed to increase sample size. The same dose recalculation and analysis was performed. In the primary patient group, 22 of 23 patients had 100% of points within the PTV pass γ criteria

  8. El cine de Pilar Miró. Homenaje y puente hacia la literatura

    Directory of Open Access Journals (Sweden)

    Fernández Soto, Concepción

    2010-02-01

    Full Text Available There is absolutely no doubt about the fact that literature –including both novel and theatre– has provided the cinema with great stories throughout the last one hundred and twenty years. And why is a literary text chosen to be adapted to the cinema? Among others, the main reasons are the necessity to tell well-constructed stories which will undoubtedly be successful, the access to historical knowledge or the recreation of myths and emblematic literary works. As far as Pilar Miró is concerned, the most important thing about her adaptations is that the original perception, reading and personal vision of the literary work remain, though always through the dialogue among creators. This research work studies in detail the five films adapted from literary works that Pilar Miró directed, five works that resulted from her personal admiration for these literary works’ quality and suggesting power.

    Es incuestionable que la literatura –tanto la novela como el teatro– ha proporcionado grandes historias para el cine a lo largo de sus casi ciento veinte años de existencia. ¿Y por qué se elige un texto literario para ser adaptado? Entre otras razones por la necesidad de contar con historias bien trazadas, por la garantía del éxito comercial, el acceso al conocimiento histórico o por la recreación de mitos y obras emblemáticas. En el caso de la directora Pilar Miró lo importante de sus adaptaciones es que finalmente prevalece su percepción, su lectura, su visión personal de la obra original, pero siempre a través del diálogo entre creadores. El texto de este artículo estudia las cinco películas que Pilar Miró dirigió como adaptaciones de obras literarias, cinco trabajos que vinieron como resultado de un deslumbramiento personal ante la calidad y el poder de sugerencia de esos textos literarios.

  9. Mujeres delincuentes e imaginarios. Criminología, cine y nota roja en México, 1940-1950

    Directory of Open Access Journals (Sweden)

    MARTHA SANTILLÁN ESQUEDA

    Full Text Available RESUMEN La modernización política y económica impulsada por los gobiernos tras la Revolución Mexicana, repercutió en la apertura de espacios para el desenvolvimiento de mujeres fuera del ámbito doméstico. La especialización de la criminología y la profesionalización de medios de comunicación, ligados a un fuerte conservadurismo, coadyuvaron en la conformación de un notorio temor ante tal fenómeno, asumiendo que ello pudiera provocar en las mujeres el relajamiento de la moral y, en consecuencia, conductas delictivas. El artículo analiza la conformación de imaginarios en torno a la mujer delincuente en un periodo de notorio auge tanto del cine como de la nota roja. Al presentar a las criminales como un ser monstruoso y perverso, imagen que no distaba mucho de las ideas criminológicas, se prolongaban temores existentes en torno a la delincuencia femenina pero también se fortalecía la concepción de una feminidad atada al espacio doméstico. Se estudian filmes, prensa nota roja, diarios de circulación nacional y artículos criminológicos.

  10. FOTOGRAFÍA, CINE Y TRADUCCIÓN EN "LAS BABAS DEL DIABLO"

    Directory of Open Access Journals (Sweden)

    Valeria de los Ríos

    2008-04-01

    Full Text Available En este artículo se analiza el cuento "Las babas del diablo" de Julio Cortázar desde una perspectiva visual. La hipótesis central de este texto es que Cortázar relaciona escritura, fotografía y cine para poner enjuego la relación entre arte, sujeto y realidad. Esta conexión está mediada por la técnica, específicamente por aparatos como la cámara fotográfica y la máquina de escribir. Cortázar vincula fotografía y escritura a partir del concepto de traducción, construyendo un protagonista que es al mismo tiempo un observador y un letrado. Este protagonista pasa de ser un sujeto eminentemente fotográfico, a convertirse en el involuntario espectador de un filme.In this article, I analyze the short story "Blow-up " by Julio Cortázar from a visual point of view. This text's central hypothesis is that Cortázar relates writing, photography and cinema in order to put into play the connection between art, subject and reality. This link is mediated by technique, specifically by apparatuses such as the photographic camera and the typewriter. Cortázar associates photography and writing through the concept of translation, constructing a protagonist that is at the same time an observer and a letrado. This protagonist, first a photographic subject, becomes an involuntary film spectator.

  11. El cine de Pérez Arroyo y los proyectores de juguete de posguerra / The Cinema of Pérez Arroyo and the Postwar Toy Projectors

    Directory of Open Access Journals (Sweden)

    Raúl González-Monaj

    2016-08-01

    Full Text Available La historia de la animación de posguerra en nuestro país, conocida como «la edad dorada», siempre ha resultado fascinante por el contexto en que se desarrolló y por ello se ha convertido en objeto de estudio, pero todavía quedan algunos episodios menores por ultimar. El presente trabajo pretende completar una de esas lagunas, la referente a la obra de Joaquín Pérez Arroyo y su posterior relación con el cine doméstico de juguete y su entorno. A través de esta investigación profundizaremos en las películas de este animador, apenas conocido, y en su decisiva participación en dos de los ejemplos más populares del cine de juguete nacional: Payá y Jefe. Casos que estuvieron conectados gracias a él y que se mueven entre el cine de papel y los 35 mm, entre el salón comedor y la sala de cine, entre Mikito y Quinito.Palabras clave: cortometraje de animación, CIFESA, proyector de juguete, Payá, Saludes, Jefe, Quinito. AbstractThe story of the postwar animation in Spain, known as the « Golden Age», has always been fascinating due to the context where it happened and so, it became object of study. Nevertheless, there are still some episodes to be finished. This study aims to complete one of these gaps as the one related to Joaquín Pérez Arroyo's work and his later connection to home cinema as a toy and its context. All through this research, we'll analyze films of this barely known author and his decisive participation in two of the most popular toy cinema examples in Spain: Payá and Jefe. Thanks to him, these two cases became connected, two worlds that coexist within the paper film and the 35 mm, between the living room and the movie theatre, between Mikito and Quinito.Keywords: animation short film, CIFESA, toy projector, Payá, Saludes, Jefe, Quinito.

  12. Megavoltage conebeam CT cine as final verification of treatment plan in lung stereotactic body radiotherapy.

    Science.gov (United States)

    Kudithipudi, Vijay; Gayou, Olivier; Colonias, Athanasios

    2016-06-01

    To analyse the clinical impact of megavoltage conebeam computed tomography (MV-CBCT) cine on internal target volume (ITV) coverage in lung stereotactic body radiotherapy (SBRT). One hundred and six patients received lung SBRT. All underwent 4D computed tomography simulation followed by treatment via image guided 3D conformal or intensity modulated radiation. Prior to SBRT, all patients underwent MV-CBCT cine, in which raw projections are displayed as beam's-eye-view fluoroscopic series with the planning target volume (PTV) projected onto each image, enabling verification of tumour motion relative to the PTV and assessment of adequacy of treatment margin. Megavoltage conebeam computed tomography cine was completed 1-2 days prior to SBRT. Four patients (3.8%) had insufficient ITV coverage inferiorly at cine review. All four plans were changed by adding 5 mm on the PTV margin inferiorly. The mean change in PTV volumes was 3.9 cubic centimetres (cc) (range 1.85-6.32 cc). Repeat cine was performed after plan modification to ensure adequate PTV coverage in the modified plans. PTV margin was adequate in the majority of patients with this technique. MV-CBCT cine did show insufficient coverage in a small subset of patients. Insufficient PTV margins may be a function of 4D CT simulation inadequacies or deficiencies in visualizing the ITV inferior border in the full-inhale phase. MV-CBCT cine is a valuable tool for final verification of PTV margins. © 2016 The Royal Australian and New Zealand College of Radiologists.

  13. Cardiac cine imaging at 3 Tesla: initial experience with a 32-element body-array coil.

    Science.gov (United States)

    Fenchel, Michael; Deshpande, Vibhas S; Nael, Kambiz; Finn, J Paul; Miller, Stephan; Ruehm, Stefan; Laub, Gerhard

    2006-08-01

    We sought to assess the feasibility of cardiac cine imaging and evaluate image quality at 3 T using a body-array coil with 32 coil elements. Eight healthy volunteers (3 men; median age 29 years) were examined on a 3-T magnetic resonance scanner (Magnetom Trio, Siemens Medical Solutions) using a 32-element phased-array coil (prototype from In vivo Corp.). Gradient-recalled-echo (GRE) cine (GRAPPAx3), GRE cine with tagging lines, steady-state-free-precession (SSFP) cine (GRAPPAx3 and x4), and SSFP cine(TSENSEx4 andx6) images were acquired in short-axis and 4-chamber view. Reference images with identical scan parameters were acquired using the total-imaging-matrix (Tim) coil system with a total of 12 coil elements. Images were assessed by 2 observers in a consensus reading with regard to image quality, noise and presence of artifacts. Furthermore, signal-to-noise values were determined in phantom measurements. In phantom measurements signal-to-noise values were increased by 115-155% for the various cine sequences using the 32-element coil. Scoring of image quality yielded statistically significant increased image quality with the SSFP-GRAPPAx4, SSFP-TSENSEx4, and SSFP-TSENSEx6 sequence using the 32-element coil (P < 0.05). Similarly, scoring of image noise yielded a statistically significant lower noise rating with the SSFP-GRAPPAx4, GRE-GRAPPAx3, SSFP-TSENSEx4, and SSFP-TSENSEx6 sequence using the 32-element coil (P < 0.05). This study shows that cardiac cine imaging at 3 T using a 32-element body-array coil is feasible in healthy volunteers. Using a large number of coil elements with a favorable sensitivity profile supports faster image acquisition, with high diagnostic image quality even for high parallel imaging factors.

  14. Free-breathing whole-heart 3D cine magnetic resonance imaging with prospective respiratory motion compensation.

    Science.gov (United States)

    Moghari, Mehdi H; Barthur, Ashita; Amaral, Maria E; Geva, Tal; Powell, Andrew J

    2018-07-01

    To develop and validate a new prospective respiratory motion compensation algorithm for free-breathing whole-heart 3D cine steady-state free precession (SSFP) imaging. In a 3D cine SSFP sequence, 4 excitations per cardiac cycle are re-purposed to prospectively track heart position. Specifically, their 1D image is reconstructed and routed into the scanner's standard diaphragmatic navigator processing system. If all 4 signals are in end-expiration, cine image data from the entire cardiac cycle is accepted for image reconstruction. Prospective validation was carried out in patients (N = 17) by comparing in each a conventional breath-hold 2D cine ventricular short-axis stack and a free-breathing whole-heart 3D cine data set. All 3D cine SSFP acquisitions were successful and the mean scan time was 5.9 ± 2.7 min. Left and right ventricular end-diastolic, end-systolic, and stroke volumes by 3D cine SSFP were all larger than those from 2D cine SSFP. This bias was 3D cine images had a lower ventricular blood-to-myocardium contrast ratio, contrast-to-noise ratio, mass, and subjective quality score. The novel prospective respiratory motion compensation method for 3D cine SSFP imaging was robust and efficient and yielded slightly larger ventricular volumes and lower mass compared to breath-hold 2D cine imaging. Magn Reson Med 80:181-189, 2018. © 2017 International Society for Magnetic Resonance in Medicine. © 2017 International Society for Magnetic Resonance in Medicine.

  15. El recorrido: evaluación de las cualidades sensoriales y formales del medio urbano como parte de los criterios de caminabilidad. La ciudad de Taipei como caso de estudio

    OpenAIRE

    Fernández Muñoz, Laura

    2016-01-01

    La presente investigación aborda el análisis de las cualidades del entorno urbano que inciden en la experiencia perceptiva de su recorrido. Los intereses que la motivan tienen que ver con la recuperación de la ciudad para el viandante y se sitúa dentro de un marco de intereses más amplio como es el de la ciudad sostenible. En primer lugar, se contextualiza el tema de la experiencia del recorrido a través de disciplinas diferentes como son el cine, la literatura, la arquitectura, el urbanismo,...

  16. Strain analysis in CRT candidates using the novel segment length in cine (SLICE) post-processing technique on standard CMR cine images

    NARCIS (Netherlands)

    Zweerink, A.; Allaart, C.P.; Kuijer, J.P.A.; Wu, L.; Beek, A.M.; Ven, P.M. van de; Meine, M.; Croisille, P.; Clarysse, P.; Rossum, A.C. van; Nijveldt, R.

    2017-01-01

    OBJECTIVES: Although myocardial strain analysis is a potential tool to improve patient selection for cardiac resynchronization therapy (CRT), there is currently no validated clinical approach to derive segmental strains. We evaluated the novel segment length in cine (SLICE) technique to derive

  17. Motion-Corrected Real-Time Cine Magnetic Resonance Imaging of the Heart: Initial Clinical Experience.

    Science.gov (United States)

    Rahsepar, Amir Ali; Saybasili, Haris; Ghasemiesfe, Ahmadreza; Dolan, Ryan S; Shehata, Monda L; Botelho, Marcos P; Markl, Michael; Spottiswoode, Bruce; Collins, Jeremy D; Carr, James C

    2018-01-01

    Free-breathing real-time (RT) imaging can be used in patients with difficulty in breath-holding; however, RT cine imaging typically experiences poor image quality compared with segmented cine imaging because of low resolution. Here, we validate a novel unsupervised motion-corrected (MOCO) reconstruction technique for free-breathing RT cardiac images, called MOCO-RT. Motion-corrected RT uses elastic image registration to generate a single heartbeat of high-quality data from a free-breathing RT acquisition. Segmented balanced steady-state free precession (bSSFP) cine images and free-breathing RT images (Cartesian, TGRAPPA factor 4) were acquired with the same spatial/temporal resolution in 40 patients using clinical 1.5 T magnetic resonance scanners. The respiratory cycle was estimated using the reconstructed RT images, and nonrigid unsupervised motion correction was applied to eliminate breathing motion. Conventional segmented RT and MOCO-RT single-heartbeat cine images were analyzed to evaluate left ventricular (LV) function and volume measurements. Two radiologists scored images for overall image quality, artifact, noise, and wall motion abnormalities. Intraclass correlation coefficient was used to assess the reliability of MOCO-RT measurement. Intraclass correlation coefficient showed excellent reliability (intraclass correlation coefficient ≥ 0.95) of MOCO-RT with segmented cine in measuring LV function, mass, and volume. Comparison of the qualitative ratings indicated comparable image quality for MOCO-RT (4.80 ± 0.35) with segmented cine (4.45 ± 0.88, P = 0.215) and significantly higher than conventional RT techniques (3.51 ± 0.41, P cine (1.51 ± 0.90, P = 0.088 and 1.23 ± 0.45, P = 0.182) were not different. Wall motion abnormality ratings were comparable among different techniques (P = 0.96). The MOCO-RT technique can be used to process conventional free-breathing RT cine images and provides comparable quantitative assessment of LV function and volume

  18. Tras los pasos del Cine en Ecuador: la producción nacional y políticas de apoyo

    Directory of Open Access Journals (Sweden)

    Violeta Yalilé Loaiza Ruiz

    2015-12-01

    Full Text Available Con el presente trabajo reflexionamos sobre el estado actual del cine ecuatoriano, la incidencia que en él tiene la actual Ley del Cine y la participación del Consejo Nacional del Cine en su financiación. Partimos de una historia del cine, desde sus comienzos en el último cuarto del siglo XIX, con las primeras filmaciones de Theodor Wolf, hasta la actualidad. Analizaremos las causas de las preferencias de los espectadores, la dicotomía entre cine documental y ficcional, a través de las más importantes películas realizadas en el país y su incidencia internacional. Para ello hemos utilizado la entrevista a tres de sus más importantes protagonistas/actores, Wilma Granda, Alex Schlenker y Santiago Carpio, para conocer su opinión del cine en Ecuador. El cine ecuatoriano sigue evolucionando pese a los obstáculos políticos y económicos que existentes y la fuerte competencia del cine extranjero, fundamentalmente de los Estados Unidos.

  19. Hayao Miyazaki, la lámpara maravillosa. Un estudio de su cine y de sus referencias humanistas a la luz de las conexiones culturales entre Japón y Occidente

    OpenAIRE

    Fortes Guerrero, Raúl

    2017-01-01

    «Hayao Miyazaki, la lámpara maravillosa. Un estudio de su cine y de sus referencias humanistas a la luz de las conexiones culturales entre Japón y Occidente». Bajo este título, ofrecemos una completa y profunda investigación centrada en la obra integral del realizador nipón Hayao Miyazaki (1941), aunque con especial incidencia en sus once largometrajes, su única serie televisiva como director absoluto y algunos cortometrajes y mangas. Dicha investigación, en la que desgranamos los temas recto...

  20. Good bye, Europa del Este. La desaparición de la Europa de los dos bloques y el difícil camino hacia una nueva identidad en la Europa del Este a través del cine

    Directory of Open Access Journals (Sweden)

    Labrador Ben, Julia María

    2007-08-01

    Full Text Available The Generation of distinguishing marks is described in Europe after the Revolution Of October, the use of the movies in the United States as an element in the Cold War and the European Identity after the fall of the USSR and the Warsaw Pact.Se describe la generación de señas de identidad en Europa tras la revolución de Octubre, la utilización del cine en EEUU como elemento de combate en la guerra fría, y la nueva identidad europea tras la desaparición de la URSS y el Pacto de Varsovia.

  1. Normal cardiac diameters in cine-MRI of the heart

    International Nuclear Information System (INIS)

    Hergan, K.; Schuster, A.; Mair, M.; Burger, R.; Toepker, M.

    2004-01-01

    Purpose: To measure the normal diameters of cardiac cavities in standard cardiac views using cine MRI. Materials and Methods: Fifty-six volunteers were examined (27 male, 29 female) on a 1.5 T MR unit with ECG-triggered single shot free precision (SSFP) cine MR sequences and parallel image acquisition. Standardized echocardiographic planes were used to depict the heart of all volunteers (short axis, 4-chamber view, left and right 2-chamber views). The different diameters of the cardiac cavities were measured using a fixed protocol. Results: For the estimation of ventricular dilatation, the important female/male cross diameters of the left ventricle are 45.2±3.4/51.6±4.6 mm diastolic and 30.5±3.5/33.8±3.6 mm systolic, and of the right ventricle 30.7±3.8/37.1±5.9 mm diastolic and 22.3±3.8/28.1±4.4 mm systolic. For the determination of a left ventricular hypertrophy, relevant septal wall thickness measured in the short axis of the left ventricle of female/male volunteers are 8.0±1.0/9.9±1.2 mm diastolic and 10.9±1.4/13.6±1.9 mm systolic. The measured normal values of male volunteers were generally higher than those of female volunteers. The thickness of the ventricular septum correlated well when measured in the short axis and 4-chamber view. When measured in the 4-chamber view, the longitudinal diameter of the ventricles had a higher value in diastole and a lower value in systole, compared to the 2-chamber views of the right and left cardiac cavities. The atrial longitudinal diameters were higher in the 4-chamber view compared to the 2-chamber views, without any difference in systole or diastole. Conclusion: Diameters of cardiac cavities are easily and quickly measured. Using the tables with the normal values published here, it is simple to estimate an abnormal size of the heart. (orig.)

  2. Comparison of standard, prone and cine MRI in the evaluation of tethered cord

    International Nuclear Information System (INIS)

    Singh, Sukhjinder; Kline-Fath, Beth; Racadio, Judy M.; Bierbrauer, Karin; Salisbury, Shelia; Macaluso, Maurizio; Jackson, Elizabeth C.; Egelhoff, John C.

    2012-01-01

    Tethered cord syndrome (TCS) is defined by abnormal traction on the spinal cord that confines its movement. Surgical cord release usually stops neurological deterioration; therefore, early and accurate neuroradiological diagnosis is important. Supine MRI is the imaging modality of choice, but prone MRI and cine MRI can demonstrate cord movement. We compared the diagnostic accuracies of standard MRI, prone MRI and cine MRI in patients with clinical suspicion of TCS and evaluated inter-reader reliability for MR imaging. Children who underwent MRI for suspicion of TCS were retrospectively identified. Supine, prone and cine MRI studies were re-read by two pediatric neuroradiologists. Conus level, filum appearance and cord movement were documented. Thirteen of 49 children had tethered cord documented at surgery. Conus level had the highest diagnostic accuracy (sensitivity 69-77%, specificity 94%, positive predictive value 82-83%, negative predictive value 89-92%, correct diagnosis 88-90%) and highest between-reader concordance (98%). Prone and cine MRI did not add to the accuracy of the supine imaging. Conus level provides the highest diagnostic accuracy and inter-reader reliability in TCS. Until a larger series is evaluated, it remains questionable whether prone or cine MRI provides enough additional diagnostic information to warrant routine use. (orig.)

  3. Comparison of standard, prone and cine MRI in the evaluation of tethered cord

    Energy Technology Data Exchange (ETDEWEB)

    Singh, Sukhjinder [Cohen Children' s Medical Center, Department of Radiology, New Hyde Park, NY (United States); Kline-Fath, Beth; Racadio, Judy M. [Cincinnati Children' s Hospital Medical Center, Department of Radiology, Cincinnati, OH (United States); Bierbrauer, Karin [Cincinnati Children' s Hospital Medical Center, Department of Neurosurgery, Cincinnati, OH (United States); Salisbury, Shelia; Macaluso, Maurizio [Cincinnati Children' s Hospital Medical Center, Division of Biostatistics and Epidemiology, Cincinnati, OH (United States); Jackson, Elizabeth C. [Cincinnati Children' s Hospital Medical Center, Department of Pediatrics, Division of Nephrology, Cincinnati, OH (United States); Egelhoff, John C. [Cincinnati Children' s Hospital Medical Center, Department of Radiology, Cincinnati, OH (United States); Phoenix Children' s Hospital, Department of Radiology, Phoenix, AZ (United States)

    2012-06-15

    Tethered cord syndrome (TCS) is defined by abnormal traction on the spinal cord that confines its movement. Surgical cord release usually stops neurological deterioration; therefore, early and accurate neuroradiological diagnosis is important. Supine MRI is the imaging modality of choice, but prone MRI and cine MRI can demonstrate cord movement. We compared the diagnostic accuracies of standard MRI, prone MRI and cine MRI in patients with clinical suspicion of TCS and evaluated inter-reader reliability for MR imaging. Children who underwent MRI for suspicion of TCS were retrospectively identified. Supine, prone and cine MRI studies were re-read by two pediatric neuroradiologists. Conus level, filum appearance and cord movement were documented. Thirteen of 49 children had tethered cord documented at surgery. Conus level had the highest diagnostic accuracy (sensitivity 69-77%, specificity 94%, positive predictive value 82-83%, negative predictive value 89-92%, correct diagnosis 88-90%) and highest between-reader concordance (98%). Prone and cine MRI did not add to the accuracy of the supine imaging. Conus level provides the highest diagnostic accuracy and inter-reader reliability in TCS. Until a larger series is evaluated, it remains questionable whether prone or cine MRI provides enough additional diagnostic information to warrant routine use. (orig.)

  4. Accelerated cardiac cine MRI using locally low rank and finite difference constraints.

    Science.gov (United States)

    Miao, Xin; Lingala, Sajan Goud; Guo, Yi; Jao, Terrence; Usman, Muhammad; Prieto, Claudia; Nayak, Krishna S

    2016-07-01

    To evaluate the potential value of combining multiple constraints for highly accelerated cardiac cine MRI. A locally low rank (LLR) constraint and a temporal finite difference (FD) constraint were combined to reconstruct cardiac cine data from highly undersampled measurements. Retrospectively undersampled 2D Cartesian reconstructions were quantitatively evaluated against fully-sampled data using normalized root mean square error, structural similarity index (SSIM) and high frequency error norm (HFEN). This method was also applied to 2D golden-angle radial real-time imaging to facilitate single breath-hold whole-heart cine (12 short-axis slices, 9-13s single breath hold). Reconstruction was compared against state-of-the-art constrained reconstruction methods: LLR, FD, and k-t SLR. At 10 to 60 spokes/frame, LLR+FD better preserved fine structures and depicted myocardial motion with reduced spatio-temporal blurring in comparison to existing methods. LLR yielded higher SSIM ranking than FD; FD had higher HFEN ranking than LLR. LLR+FD combined the complimentary advantages of the two, and ranked the highest in all metrics for all retrospective undersampled cases. Single breath-hold multi-slice cardiac cine with prospective undersampling was enabled with in-plane spatio-temporal resolutions of 2×2mm(2) and 40ms. Highly accelerated cardiac cine is enabled by the combination of 2D undersampling and the synergistic use of LLR and FD constraints. Copyright © 2016 Elsevier Inc. All rights reserved.

  5. Automatic segmentation of left ventricle in cardiac cine MRI images based on deep learning

    Science.gov (United States)

    Zhou, Tian; Icke, Ilknur; Dogdas, Belma; Parimal, Sarayu; Sampath, Smita; Forbes, Joseph; Bagchi, Ansuman; Chin, Chih-Liang; Chen, Antong

    2017-02-01

    In developing treatment of cardiovascular diseases, short axis cine MRI has been used as a standard technique for understanding the global structural and functional characteristics of the heart, e.g. ventricle dimensions, stroke volume and ejection fraction. To conduct an accurate assessment, heart structures need to be segmented from the cine MRI images with high precision, which could be a laborious task when performed manually. Herein a fully automatic framework is proposed for the segmentation of the left ventricle from the slices of short axis cine MRI scans of porcine subjects using a deep learning approach. For training the deep learning models, which generally requires a large set of data, a public database of human cine MRI scans is used. Experiments on the 3150 cine slices of 7 porcine subjects have shown that when comparing the automatic and manual segmentations the mean slice-wise Dice coefficient is about 0.930, the point-to-curve error is 1.07 mm, and the mean slice-wise Hausdorff distance is around 3.70 mm, which demonstrates the accuracy and robustness of the proposed inter-species translational approach.

  6. Accelerated high-frame-rate mouse heart cine-MRI using compressed sensing reconstruction.

    Science.gov (United States)

    Motaal, Abdallah G; Coolen, Bram F; Abdurrachim, Desiree; Castro, Rui M; Prompers, Jeanine J; Florack, Luc M J; Nicolay, Klaas; Strijkers, Gustav J

    2013-04-01

    We introduce a new protocol to obtain very high-frame-rate cinematographic (Cine) MRI movies of the beating mouse heart within a reasonable measurement time. The method is based on a self-gated accelerated fast low-angle shot (FLASH) acquisition and compressed sensing reconstruction. Key to our approach is that we exploit the stochastic nature of the retrospective triggering acquisition scheme to produce an undersampled and random k-t space filling that allows for compressed sensing reconstruction and acceleration. As a standard, a self-gated FLASH sequence with a total acquisition time of 10 min was used to produce single-slice Cine movies of seven mouse hearts with 90 frames per cardiac cycle. Two times (2×) and three times (3×) k-t space undersampled Cine movies were produced from 2.5- and 1.5-min data acquisitions, respectively. The accelerated 90-frame Cine movies of mouse hearts were successfully reconstructed with a compressed sensing algorithm. The movies had high image quality and the undersampling artifacts were effectively removed. Left ventricular functional parameters, i.e. end-systolic and end-diastolic lumen surface areas and early-to-late filling rate ratio as a parameter to evaluate diastolic function, derived from the standard and accelerated Cine movies, were nearly identical. Copyright © 2012 John Wiley & Sons, Ltd.

  7. Feasibility of vocal fold abduction and adduction assessment using cine-MRI

    International Nuclear Information System (INIS)

    Baki, Marina Mat; Menys, Alex; Morley, Simon; Beale, Timothy; Atkinson, David; Punwani, Shonit; Bassett, Paul; Sandhu, Guri; Naduvilethil, Georgekutty; Stevenson, Nicola; Birchall, Martin A.

    2017-01-01

    Determine feasibility of vocal fold (VF) abduction and adduction assessment by cine magnetic resonance imaging (cine-MRI) Cine-MRI of the VF was performed on five healthy and nine unilateral VF paralysis (UVFP) participants using an axial gradient echo acquisition with temporal resolution of 0.7 s. VFs were continuously imaged with cine-MRI during a 10-s period of quiet respiration and phonation. Scanning was repeated twice within an individual session and then once again at a 1-week interval. Asymmetry of VF position during phonation (VF phonation asymmetry, VFPa) and respiration (VF respiration asymmetry, VFRa) was determined. Percentage reduction in total glottal area between respiration and phonation (VF abduction potential, VFAP) was derived to measure overall mobility. An un-paired t-test was used to compare differences between groups. Intra-session, inter-session and inter-reader repeatability of the quantitative metrics was evaluated using intraclass correlation coefficient (ICC). VF position asymmetry (VFPa and VFRa) was greater (p=0.012; p=0.001) and overall mobility (VFAP) was lower (p=0.008) in UVFP patients compared with healthy participants. ICC of repeatability of all metrics was good, ranged from 0.82 to 0.95 except for the inter-session VFPa (0.44). Cine-MRI is feasible for assessing VF abduction and adduction. Derived quantitative metrics have good repeatability. (orig.)

  8. Feasibility of vocal fold abduction and adduction assessment using cine-MRI

    Energy Technology Data Exchange (ETDEWEB)

    Baki, Marina Mat [National University of Malaysia, Faculty of Medicine, Kuala Lumpur (Malaysia); Menys, Alex; Morley, Simon; Beale, Timothy [University College London, Centre for Medical Imaging, London (United Kingdom); Atkinson, David; Punwani, Shonit [University College London, Centre for Medical Imaging, London (United Kingdom); Royal National Throat Nose Ear Hospital, University College London Hospital NHS Trust, London (United Kingdom); Bassett, Paul [University College London, London (United Kingdom); Sandhu, Guri [Charing Cross Hospital, Imperial College Healthcare NHS Trust, London (United Kingdom); Naduvilethil, Georgekutty; Stevenson, Nicola [Royal National Throat Nose Ear Hospital, University College London Hospital NHS Trust, London (United Kingdom); Birchall, Martin A. [Royal National Throat Nose Ear Hospital, University College London Hospital NHS Trust, London (United Kingdom); University of California, Davis, Department of Otolaryngology, Davis, CA (United States); University College London, Ear Institute, London (United Kingdom)

    2017-02-15

    Determine feasibility of vocal fold (VF) abduction and adduction assessment by cine magnetic resonance imaging (cine-MRI) Cine-MRI of the VF was performed on five healthy and nine unilateral VF paralysis (UVFP) participants using an axial gradient echo acquisition with temporal resolution of 0.7 s. VFs were continuously imaged with cine-MRI during a 10-s period of quiet respiration and phonation. Scanning was repeated twice within an individual session and then once again at a 1-week interval. Asymmetry of VF position during phonation (VF phonation asymmetry, VFPa) and respiration (VF respiration asymmetry, VFRa) was determined. Percentage reduction in total glottal area between respiration and phonation (VF abduction potential, VFAP) was derived to measure overall mobility. An un-paired t-test was used to compare differences between groups. Intra-session, inter-session and inter-reader repeatability of the quantitative metrics was evaluated using intraclass correlation coefficient (ICC). VF position asymmetry (VFPa and VFRa) was greater (p=0.012; p=0.001) and overall mobility (VFAP) was lower (p=0.008) in UVFP patients compared with healthy participants. ICC of repeatability of all metrics was good, ranged from 0.82 to 0.95 except for the inter-session VFPa (0.44). Cine-MRI is feasible for assessing VF abduction and adduction. Derived quantitative metrics have good repeatability. (orig.)

  9. Escala propuesta para medir la calidad del servicio de los cines

    Directory of Open Access Journals (Sweden)

    Eduardo Torres Moraga1

    2010-04-01

    Full Text Available En la actualidad, existe un alto nivel de competencia entre las diferentes cadenas de cines que se encuentran en Chile. En este escenario, el éxito está determinado en gran parte por los servicios que estas ofrecen a sus clientes. Si bien previamente se han desarrollado escalas para medir la calidad del servicio percibida en diversos sectores, por sus características, es necesario construir una escala específica que pueda ser aplicada a los cines. Los resultados obtenidos por medio de este estudio muestran que la calidad del servicio de los cines percibida por los consumidores es un constructor multidimensional que difiere en gran parte de las escalas estándar propuestas anteriormente, y que además se compone de la confiabilidad, la atención personal, la accesibilidad, los tangibles del cine y los tangibles de la sala de proyección de la película. Estos resultados entregan a los directivos de marketing de los cines una importante herramienta que les permitirá medir y gestionar la calidad del servicio.

  10. Chest wall invasion by bronchogenic carcinoma. Evaluation with Cine-MRI

    International Nuclear Information System (INIS)

    Nawano, Shigeru; Murakami, Kohji; Ohnuma, Hiroshi; Iwata, Ryoko; Hayashi, Takayuki; Moriyama, Noriyuki; Nishiwaki, Yutaka; Nagai, Kanji

    1996-01-01

    With the view of examining possible chest wall invasion of bronchogenic carcinoma, Cine-MRI was performed on 22 such cases. These cases were suspected of having above chest wall invasion by CT and their histopathological findings were obtained in surgery. The judgment of the chest wall invasion by Cine-CT was made such that non-moving up and down of the tumor with respiration involves its invasion, moving of the tumor without any up-and-down movement suspects its invasion and moving up and down of the tumor with respiration involves no invasion. The chest wall invasion was observed in 5 of 7 cases of invasion judged by Cine-MRI. For 2 false-positive cases, the histopathological findings presumed that tumor cells disappeared from the chest wall invaded region as the result of preoperative chemotherapy. The above invasion was observed in 1 of 4 cases suspected of possible invasion. Correct diagnosis was formed of 11 cases judged invasion-free by Cine-MRI. The above results suggested Cine-MRI to be useful for diagnosis of chest wall invasion of bronchogenic carcinoma. (author)

  11. Cine militante:Del internacionalismo a la política sensible neoliberal / Militant Cinema: From Internationalism to Neoliberal Sensible Politics

    Directory of Open Access Journals (Sweden)

    Irmgard Emmelhainz

    2017-02-01

    Full Text Available En los años sesenta, el cine militante buscó compartir y expandir estrategias y herramientas para la lucha política alrededor del mundo. Ici et ailleurs (1969- 1974, la película que Godard filmó con Jean-Pierre Gorin bajo el marco del Grupo Dziga Vertov y editó con Anne-Marie Miéville, no es solo un ejemplo de cine político de vanguardia, sino un recuento auto-reflexivo del resultado de las revoluciones aquí y en otro lado, del devenir de la militancia y el cine comprometido y de su repudio a mediados de los años setenta. En este ensayo, me enfoco en tres elementos que forman parte del legado del cine militante en general, y específicamente de Ici et ailleurs: primero, las lecciones que se pueden derivar de las ordalías derivadas de simpatizar, hablar o imaginar procesos políticos de otros, en otros lados. Segundo, el problema que Godard plantea en películas posteriores a Ici et ailleurs, a lo que llamo la «mediatización de la mediación», como la forma de activismo que siguió al rechazo del marxismo-leninismo como depositario de la política progresiva. Tercero, la no poco problemática transformación de la política de la imagen de Godard en la «política sensible» post-política, un nicho en la producción cultural que se ha dado la tarea de codificar actos políticos inestables en formas mediáticas, transformando la acción y enunciación política en cuestión de expresión.Palabras clave: cine militante, Jean-Luc Godard, Palestina, activismo, política sensible, post-política, compromiso político.Abstract:In the 1960s, militant cinema aimed to share and expand strategies and tools for the political struggle around the world. Ici et ailleurs (1969-1974, the film that Godard shot with Jean-Pierre Gorin within the Dziga Vertov’s Group and edited with Anne-Marie Miéville, it is not only an example of avant-garde political cinema, but also an auto-reflexive account of the outcome of revolutions here and elsewhere, of

  12. Evaluation of expectoration using aerosol inhalation cine-scintigraphy, 2

    International Nuclear Information System (INIS)

    Ohnuki, Masahiro

    1986-01-01

    Postural drainage and mechanical vibration have been evaluated in 16 patients of stable chronic obstructive pulmonary diseases with copious sputum (daily sputum volume > 50 ml) using aerosol cine-scintigraphy. After inhalation of a 99m Tc-Milli MISA aerosol, the removal of radioactivity from total lung field and selected peripheral lung region was measured during 40 min of (1) resting in the upright position (control), (2) postural drainage (PD), (3) postural drainage with mechanical vibration (PDWV). Compared with the control run, PD significantly improved of mucus clearance on the total lung field (p < 0.001 ∼ 0.01) and peripheral lung region (p < 0.001). However, there was no significant difference between PD and PDWV. Abnormal mucus movement was often recognized, such as stasis at the first carina, main bronchus and trachea, wandering to the lower lung (22.7 %) and regurgitation in the lower lung (50.0 %). The study indicated that postural drainage is an effective form, but mechanical vibration is of no value as an adjunct to postural drainage in the treatment of patients with stable chronic obstructive pulmonary diseases, and it was suggested that there is an adverse effect of postural drainage in the lower lung portion. (author)

  13. Cine MR imaging of uterine peristalsis in patients with endometriosis

    International Nuclear Information System (INIS)

    Kido, Aki; Togashi, Kaori; Koyama, Takashi; Fujimoto, Ryota; Nishino, Mizuki; Miyake, Kanae; Hayakawa, Katsumi; Iwasaku, Kazuhiro; Fujii, Shingo

    2007-01-01

    Endometriosis is one of the most important causes of infertility; however the precise mechanism by which it affects female fertility is unclear. The objective of this study was to study the functional aspects of the uterus by evaluating uterine contractility in patients with endometrial cysts of the ovary. The study population was recruited from two institutes and consisted of 26 women (periovulatory (10), luteal (13), and menstrual phase (3); age range: 19-51 years) with untreated endometriosis; the control group consisted of 12 healthy women (age range: 22-41 years). Cine MR imaging obtained by a 1.5T magnet was visually evaluated at 12 x faster than real speed, focusing on the presence of uterine peristalsis, the direction and frequency of peristalsis, and the presence of sustained uterine contractions. Uterine peristalsis was identifiable in 3/10, 3/13, and 3/3 of the endometriosis patients in each menstrual cycle, respectively, and in 11/12, 3/12, and 5/12 of their control subjects. Peristaltic detection rate and frequency were significantly less for the endometriosis group than for the controls in the periovulatory phase only (p<0.05). Sustained contractions were recognized in 19/36 control subjects and in 13/26 endometriosis patients, but the difference was not significant. Uterine peristalsis appears to be suppressed during the periovulatory phase in patients with endometriosis, which may have an adverse effect on sperm transport. (orig.)

  14. ConCERNed for Humanity and Cine Club

    CERN Document Server

    ConCERNed for Humanity and Cine Club

    2012-01-01

      Thursday 26 April 2012 at 20:00 CERN Council Chamber Sicko By Michael Moore (USA, 2007) 123 min, original version English; French subtitles. Documentary look at health care in the United States as provided by profit-oriented health maintenance organizations (HMOs) compared to free, universal care in Canada, the U.K., and France. Moore contrasts U.S. media reports on Canadian care with the experiences of Canadians in hospitals and clinics there. He interviews patients and doctors in the U.K. about cost, quality, and salaries. He examines why Nixon promoted HMOs in 1971, and why the Clintons’ reform effort failed in the 1990s. He talks to U.S. ex-pats in Paris about French services, and he takes three 9/11 clean-up volunteers, who developed respiratory problems, to Cuba for care. He asks of Americans, “Who are we?” Organisation : ConCERNed for Humanity Club and CERN CineClub Projection from DVD – entrance free – for info: http://cern.ch/C...

  15. Thursday Programme of CineGlobe Festival 2015

    CERN Multimedia

    Cugini, Pavel

    2015-01-01

    The CineGlobe Programme on Thursday 26th March 2015 counted with two short-films inspired by science sessions, two workshops on the 360 degree dome, and a special evening show in collaboration with the Mapping Festival, to celebrate the UNESCO Year of Light. The evening open with Diego Blas, CERN theorist, talking about Light, Einstein and the LHC to celebrate the UNESCO International Year of Light. Followed by a performance by the artist YRO_EILE_18. The artist Yro presents Eile, a live installation performance where light, sound, and cinema converge to tell a timeless story. EILE is a live cinema performance, in which yro makes live sound and images with a camera, some microphones and small objects like stones, balls, bits of paper and string.These materials allow him to create videos and sound, which aesthetics are close to abstract cinema and object theater assembled, sampled and grinded . The process is part of the staging itself as well as the film that results. Indescribable Eile is lived as an experie...

  16. Cine MR imaging of uterine peristalsis in patients with endometriosis

    Energy Technology Data Exchange (ETDEWEB)

    Kido, Aki; Togashi, Kaori; Koyama, Takashi; Fujimoto, Ryota [Kyoto University, Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto (Japan); Nishino, Mizuki [Beth Israel Deaconess Medical Center, Department of Radiology, Kyoto (Japan); Miyake, Kanae; Hayakawa, Katsumi [Kyoto City Hospital, Department of Radiology, Kyoto (Japan); Iwasaku, Kazuhiro [Kyoto City Hospital, Department of Obstetrics and Gynecology, Kyoto (Japan); Fujii, Shingo [Kyoto University, Department of Gynecology and Obstetrics, Kyoto (Japan)

    2007-07-15

    Endometriosis is one of the most important causes of infertility; however the precise mechanism by which it affects female fertility is unclear. The objective of this study was to study the functional aspects of the uterus by evaluating uterine contractility in patients with endometrial cysts of the ovary. The study population was recruited from two institutes and consisted of 26 women (periovulatory (10), luteal (13), and menstrual phase (3); age range: 19-51 years) with untreated endometriosis; the control group consisted of 12 healthy women (age range: 22-41 years). Cine MR imaging obtained by a 1.5T magnet was visually evaluated at 12 x faster than real speed, focusing on the presence of uterine peristalsis, the direction and frequency of peristalsis, and the presence of sustained uterine contractions. Uterine peristalsis was identifiable in 3/10, 3/13, and 3/3 of the endometriosis patients in each menstrual cycle, respectively, and in 11/12, 3/12, and 5/12 of their control subjects. Peristaltic detection rate and frequency were significantly less for the endometriosis group than for the controls in the periovulatory phase only (p<0.05). Sustained contractions were recognized in 19/36 control subjects and in 13/26 endometriosis patients, but the difference was not significant. Uterine peristalsis appears to be suppressed during the periovulatory phase in patients with endometriosis, which may have an adverse effect on sperm transport. (orig.)

  17. EL CINE DE CIENCIA FICCIÓN PARA LA ENSEÑANZA DE LAS CIENCIAS: ANÁLISIS DE CONTENIDO

    Directory of Open Access Journals (Sweden)

    Gilberto Ceballos Abello

    2015-12-01

    Full Text Available Este documento corresponde a una fase del proyecto de grado; se  presenta un análisis de contenido respecto a las posibilidades que ofrece la ciencia ficción en la enseñanza y la manera como diferentes investigadores a partir de un mismo recurso como la ciencia ficción, han aprovechado su potencial con distintos fines. Para la realización del presente trabajo  se seleccionaron las bases de datos Dialnet, Scielo y Eric para consultar la información (artículos que suministraron la materia prima para la realización del análisis de contenido, la ventana de observación que se estableció corresponde a un periodo de tiempo no mayor a 10 años, las bases de datos aportaron cerca de 20000 artículos los cuales fueron categorizados; logrando reducir el número de documentos, el descriptor seleccionado para la base de datos Dialnet corresponde a “El cine de ciencia ficción para la enseñanza de las ciencias”, mientras que para la base de datos Eric se seleccionó como descriptor “Enseñanza de las ciencias y ciencia ficción”, en cuanto a la base de datos Scielo solo se encontró un (1 articulo correspondiente al descriptor “Ciencia ficción y enseñanza”. Al final el análisis de contenido se basó en cinco (5 documentos  que guardan una profunda relación con la naturaleza de la propuesta de proyecto de grado, permitiendo deducir que la CF es un instrumento versátil que ofrece varias posibilidades en el ámbito educativo.

  18. Sexo, poder y cine: Relaciones de poder y representaciones sexuales en los nuevos relatos pornográficos

    Directory of Open Access Journals (Sweden)

    Sara Angelina Pedraz Poza

    2011-07-01

    Full Text Available La pornografía tradicional se caracteriza por atribuir roles determinados a los sujetos que representa y, por tanto, trasladar unas relaciones de poder basadas en la supremacía de lo blanco, anglosajón, heterosexual y masculino, frente a cualquier otra identidad. Al mismo tiempo, cosifica los cuerpos femeninos, patologiza determinadas corporeidades y constriñe las posibilidades de sentir deseo y las prácticas sexuales realizables. No obstante, desde finales de los años 90 y, sobre todo, con la entrada del nuevo milenio, han aparecido nuevas formas de representar las identidades, los cuerpos ajenos a la dicotomía hombre-mujer y las diferentes formas de producir y estimular el deseo. Estas formas son principalmente dos: el porno para mujeres y la pospornografía. En este artículo se estudiará cómo estas dos corrientes del cine pornográfico consiguen desvirtuar las relaciones de poder tradicionales y utilizar la pornografía como un campo de batalla necesario para visibilizar determinadas identidades y sexualidades y como una opción política para luchar contra las hegemonías existentes. Para ello, se partirá de los marcos teóricos en los que se formaron cada una de ellas, su extrapolación al ámbito académico español y se analizarán los casos de estudio más representativos de cada una de las dos corrientes, teniendo como punto de partida las conexiones que existen entre las relaciones de poder y las representaciones sexuales.

  19. El cine mexicano de la edad de oro y su impacto internacional

    Directory of Open Access Journals (Sweden)

    Maricruz Castro-Ricalde

    2014-06-01

    Full Text Available A partir de una investigación documental en publicaciones periódicas de Argentina, Colombia, Cuba, Chile, Estados Unidos, Honduras, México, Nicaragua y Venezuela, este artículo demuestra el interés que el cine mexicano producido entre 1936 y 1956 provocó en los espectadores de Hispanoamérica y Estados Unidos, al igual que la presencia de actores, cineastas, temas y personajes de otros países hispanohablantes en la industria cinematográfica mexicana durante la denominada edad de oro del cine mexicano. Se constató la influencia de este cine en la conformación de la identidad cultural de los mexicanos y su proyección internacional.

  20. Diagnosis of tracheal instability: inspiratory and expiratory spiral CT and cine CT

    International Nuclear Information System (INIS)

    Heussel, C.P.; Thelen, M.; Kauczor, H.U.; Hafner, B.; Lill, J.

    2000-01-01

    Purpose: In tracheo- and bronchomalacia, localization and determination of collapse is necessary for planning a surgical procedure. We compared inspiratory and spiral CT, cine CT, and bronchoscopy and evaluated the relevance of each method. Methods: Seventeen patients with suspected or verified tracheal stonosis or collapse underwent paired inspiratory and exspiratory spiral CT and cine CT during continuous respiration (temporal increment 100 ms). The tracheal cross-sectional area was calculated and compared. Results: In addition to bronchoscopy, further information concerning localization, extent, collapse, stability of the tracheal wall, distal portions of the stenosis, and extraluminal compressions was obtained. A significantly higher degree of tracheal collapse was seen using cine CT compared to paired spiral CT (p [de

  1. Overcoming pitfalls in the diagnosis of aortic dissection with phase-contrast cine MR imaging

    International Nuclear Information System (INIS)

    Herfkens, R.J.; Trefelner, E.C.; Jeffrey, R.B.; Pelc, N.J.; Steiner, R.M.; Francis, I.R.

    1991-01-01

    This paper evaluates whether phase contrast cine MR imaging improves the diagnostic accuracy in aortic dissection. Fifty-five MR examinations in 49 patients were analyzed. Gated coronal and axial spin-echo (SE) images and axial velocity encoded cine images were collected through the thoracic aorta. Blinded interpretations were obtained by first evaluating SE images, then SE and cine (magnitude) images, and finally with the addition of the velocity data for whether there was increase or decreased diagnostic confidence of aortic dissection. Comparisons were made with CT, angiography, and follow-up (including surgery). Fisher discriminant analysis showed that a statistically significant improvement in diagnostic accuracy was made by the addition of the velocity data in cases where a definite diagnosis of aortic dissection could not be made from the SE images alone

  2. Analysis of flow dynamics of main pulmonary artery by cine phase contrast MR angiography

    International Nuclear Information System (INIS)

    Honda, Norinari; Machida, Kikuo; Mamiya, Toshio

    1996-01-01

    Nineteen studies of cine phase contrast MR angiography (PCMRA) of main pulmonary artery (MPA) entered the study. Cine PCMRA was obtained by a 1.5T MR imager with a gradient echo sequence coupled with velocity encoding bipolar pulses. Retrospective EKG gating was used. Mean velocity, maximum velocity, and maximum flow rate of MPA were 6.2 to 28 cm/s (mean/SD 13/5.1, n=18), 61 to 148 cm/s (mean/SD 102/30, n=13), and 12,561 to 30,113 ml/min (mean/SD 18,730/5,464, n=18), respectively. Retrograde flow in the MPA was noted to begin at late-to mid-systole. Retrograde flow occurred first in the posterior part (15/19) or occurred from periphery (4/19). Thus hemodynamic parameters and velocity maps of MPA can be obtained by cine PCMRA. (author)

  3. [Visualization of laryngopharynx during swallowing of negative contrast media (air) with cine mode 64-row MDCT].

    Science.gov (United States)

    Fudeya, Taku; Otake, Shoichiro; Watabe, Hirotaka; Mitsuoka, Takashi; Yoshikawa, Akitoshi

    2010-05-20

    Video fluoroscopic examination of swallowing generally needs a contrast media such as a barium sulfate. Since the examination is usually performed in patients with dysphasia, there is a risk of aspiration. We tried to visualize the laryngopharynx during swallowing of negative contrast media (air) with 64-row multi-detector computed tomography (64-MDCT). Cine mode 64-MDCT was performed to visualize the laryngopharynx in 4 healthy volunteers during swallowing of negative contrast media (air). The data were converted to three-dimensional (3D) images of 2 conditions (air and bone) and sagittal images of the soft tissue condition at a workstation. These images were sent to a personal computer and modeled to 3D cine images with Digital Imaging and Communication in Medicine (DICOM) Viewer and Quick Time Player. 3D cine images demonstrated movements of the epiglottis, vallecula, piriform sinus, tongue, pharyngeal wall, hyoid bone and thyroid cartilage.

  4. Cine MR imaging before and after realignment surgery for patellar maltracking - comparison with axial radiographs

    Energy Technology Data Exchange (ETDEWEB)

    Brossmann, J. [Klinik fuer Radiologische Diagnostik der Univ. Kiel (Germany); Muhle, C. [Klinik fuer Radiologische Diagnostik der Univ. Kiel (Germany); Buell, C.C. [Rheumaklinik, Bad Bramstedt (Germany); Zieplies, J. [Lubinus Klinik, Kiel (Germany); Melchert, U.H. [Klinik fuer Radiologische Diagnostik der Univ. Kiel (Germany); Brinkmann, G. [Klinik fuer Radiologische Diagnostik der Univ. Kiel (Germany); Schroeder, C. [Klinik fuer Radiologische Diagnostik der Univ. Kiel (Germany); Heller, M. [Klinik fuer Radiologische Diagnostik der Univ. Kiel (Germany)

    1995-04-01

    Comparison of motion-triggered cine magnetic resonance (MR) imaging and conventional radiographs for the assessment of operative results of patellar realignment. Fifteen patients with recurrent patellar dislocation or patellar subluxation were evaluated with conventional axial radiographs before and after realignment surgery by measuring the congruence angle (CA), lateral patellofemoral angle (LPFA), and lateral displacement (d). In eight patients the patellofemoral joint was additionally evaluated pre- and postoperatively with motion-triggered cine MR imaging by determining the bisect offset (BSO), lateral patellar displacement (LPD), and patellar tilt angle (PTA). Significant differences between the pre- and postoperative measurements were found for all MR imaging parameters (BSO, LPD, PTA: p<0.01) but not for the conventional X-ray parameters (CA: p=0.70, LPFA: p=0.56; d: p=0.04). Motion-triggered cine MR imaging was superior to conventional tangential radiographs for assessing the effectiveness of patellar realignment surgery. (orig.)

  5. Cine MR imaging before and after realignment surgery for patellar maltracking - comparison with axial radiographs

    International Nuclear Information System (INIS)

    Brossmann, J.; Muhle, C.; Buell, C.C.; Zieplies, J.; Melchert, U.H.; Brinkmann, G.; Schroeder, C.; Heller, M.

    1995-01-01

    Comparison of motion-triggered cine magnetic resonance (MR) imaging and conventional radiographs for the assessment of operative results of patellar realignment. Fifteen patients with recurrent patellar dislocation or patellar subluxation were evaluated with conventional axial radiographs before and after realignment surgery by measuring the congruence angle (CA), lateral patellofemoral angle (LPFA), and lateral displacement (d). In eight patients the patellofemoral joint was additionally evaluated pre- and postoperatively with motion-triggered cine MR imaging by determining the bisect offset (BSO), lateral patellar displacement (LPD), and patellar tilt angle (PTA). Significant differences between the pre- and postoperative measurements were found for all MR imaging parameters (BSO, LPD, PTA: p<0.01) but not for the conventional X-ray parameters (CA: p=0.70, LPFA: p=0.56; d: p=0.04). Motion-triggered cine MR imaging was superior to conventional tangential radiographs for assessing the effectiveness of patellar realignment surgery. (orig.)

  6. Estrategias narrativas orientadas a la construcción de niveles de lectura en el cine de animación de Pixar (1995-2010)

    OpenAIRE

    Pérez Guerrero, Ana María

    2012-01-01

    Tesis Doctoral leída en la Universidad Rey Juan Carlos de Madrid en 2011. Directores de la Tesis: Antonio Sánchez-Escalonilla García-Rico y Araceli Rodríguez Mateos El cine de animación experimentó un segundo florecimiento a finales de la década de los 80. El éxito de títulos como La sirenita (1989), La bella y la bestia (1991), Aladdin (1992) o El rey león (1994) son muestras del alcance de un tipo de largometrajes que impulsaron una nueva edad de oro del medio. Entre los rasgos más...

  7. La exégesis de la guerra global contra el terrorismo a través del cine y la televisión

    Directory of Open Access Journals (Sweden)

    Antonio Malalana Ureña

    2014-10-01

    Full Text Available El artículo indaga en la representación audiovisual de la Historia reciente, principalmente de la Guerra contra el terror. Nuestra investigación se centrará en como “Hollywood” ha interpretado alguno de los acontecimientos / The article investigates the audiovisual representation of recent history, especially of the War on Terror. Our investigation will focus on how Hollywood has interpreted some of the some of the events. Palabras Clave: Guerra global contra el terrorismo, cine, series de televisión _________________________ The exegesis of The War on Terror through film and televisionAbstract: The article investigates the audiovisual representation of recent history, especially of the War on Terror. Our investigation will focus on how Hollywood has interpreted some of the some of the events.Keywords: The War on Terror. Cinema. TV Series. 

  8. Hacer visible lo cotidiano a través del cine: la perspectiva de género en la Educación para el Desarrollo

    Directory of Open Access Journals (Sweden)

    Aquilina Fueyo Gutiérrez

    2012-01-01

    Full Text Available Este artículo se centra en hacer visible, a través de la Educación para el Desarrollo con un enfoque de género, el papel fundamental de las mujeres en el desarrollo humano y desvelar en el curriculum que son, junto con las niñas y los niños, las principales perjudicadas de la pobreza que genera el actual sistema económico neoliberal. Proponer para el análisis de la práctica educativa los conceptos de androcentrismo, eurocentrismo, empoderamiento, techo de cristal y suelo pegajoso, y plantear una alternativa educativa incorporando el cine como recurso son algunos de los propósitos de este artículo.

  9. Entre la domesticidad y el espacio laboral: construyendo la imagen de la mujer trabajadora en el cine mexicano de la Época de Oro

    Directory of Open Access Journals (Sweden)

    Valentina Velázquez-Zvierkova

    2017-01-01

    Full Text Available Se busca articular la problemática que enfrentaron las mujeres de clase media en su entrada al campo laboral en los 40 y 50. Por medio del análisis de la construcción fílmica de la mujer trabajadora en el cine mexicano de la Época de Oro, este trabajo se enfoca en tres filmes producidos en el espacio de una década y se centra en sus estrategias discursivas y propagandísticas mientras que pretende dilucidar las limitaciones en su entrada de lleno en el terreno profesional. Estos filmes coinciden al privilegiar la domesticidad y la moral católica ante las oportunidades profesionales de las mujeres sacrificando su potencial productivo como miembros de la fuerza laboral.

  10. TUBERCULOSIS COMO ENFERMEDAD OCUPACIONAL

    Science.gov (United States)

    Mendoza-Ticona, Alberto

    2014-01-01

    Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislación peruana vigente al respecto. PMID:22858771

  11. Assessment of voluntary deep inspiration breath-hold with CINE imaging for breast radiotherapy.

    Science.gov (United States)

    Estoesta, Reuben Patrick; Attwood, Lani; Naehrig, Diana; Claridge-Mackonis, Elizabeth; Odgers, David; Martin, Darren; Pham, Melissa; Toohey, Joanne; Carroll, Susan

    2017-10-01

    Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery. Weekly CINE images were retrospectively assessed for 20 left-sided breast cancer patients receiving RT in vDIBH, and compared with CINE images of 20 patients treated in FB. The intra-beam motion was assessed and the distance from the beam central axis (CA) to the internal chest wall (ICW) was measured on each CINE image. These were then compared to the planned distance on digitally reconstructed radiograph (DRR). The maximum intra-beam motion for any one patient measurement was 0.30 cm for vDIBH and 0.20 cm for FB. The mean difference between the distance from the CA to ICW on DRR and the equivalent distance on CINE imaging (as treated) was 0.28 cm (SD 0.17) for vDIBH patients and 0.25 cm (SD 0.14) for FB patients (P = 0.458). The measured values were comparable for patients undergoing RT in vDIBH, and for those in FB. This quality assessment showed that using in-room lasers and skin tattoos to independently monitor breath-hold in vDIBH as detected by 'on-treatment' CINE imaging is safe and effective. © 2017 The Royal Australian and New Zealand College of Radiologists.

  12. Value of Cine-MRI sequences before and after injection in the diagnosis of acute myocarditis.

    Science.gov (United States)

    Zidi, Asma; Zairi, Ihsen; Mzoughi, Khadija; Zakhama, Lilia; Kamoun, Ikram; Ben Halima, Afef; Ridene, Imen

    2016-11-01

    Cardiovascular magnetic resonance (CMR) has become the examination of choice in case of suspicion of acute myocarditis. Late gadolinium enhancement (LGE) imaging is very important to establish this diagnosis. Cine MRI sequences are useful for the study of the myocardial contractility.   The purpose is to estimate the value of cine MRI sequences before and after injection for the diagnosis of acute myocarditis compared with late gadolinium enhanced sequences. We prospectively included 40 patients having a high suspicion of acute myocarditis and examined using a 1.5 Tesla CMR. Cine MRI sequences before and after injection were performed. The protocol also include  T2-weighted  short- tau-inversion-recovery (STIR T2) fast spin echo MRI and LGE imaging eight minutes after injection with visual adjustment of inversion time. Delayed enhancement was found among 23 patients. Fifteen patients (65 %) presented a spontaneous hyper signal detected visually on Cine MRI sequences before injection and 11 patients (48 %) on STIR T2. The hyper signal on Cine MRI sequences after injection of gadolinium was the same topography that the late raising at 23 patients. In addition, we highlighted a significant difference between this hyper signal before injection and the left ventricle ejection fraction (p=0.022) as well as with the telesystolic volume of the left ventricle (LV) indexed by the body mass (p=0.039). Our study suggests that Cine MRI sequences after injection are of equal performance in the diagnosis of acute myocarditis as the LGE sequences and its contibution is important when we want to shorten the examination or when inversion time isn't optimal.

  13. Cine viability magnetic resonance imaging of the heart without increased scan time.

    Science.gov (United States)

    Hassanein, Azza S; Khalifa, Ayman M; Ibrahim, El-Sayed H

    2016-02-01

    Cardiac magnetic resonance imaging (MRI) provides information about myocardial morphology, function, and viability from cine, tagged, and late gadolinium enhancement (LGE) images, respectively. While the cine and tagged images are acquired in a time-resolved fashion, the LGE images are acquired at a single timeframe. The purpose of this work is to develop a method for generating cine LGE images without additional scan time. The motion field is extracted from the tagged images, and is then used to guide the deformation of the infarcted region from the acquired LGE image at the acquired timeframe to any other timeframe. Major techniques for motion estimation, including harmonic phase (HARP) and optical flow analysis, are tested in this work for motion estimation. The proposed method is tested on numerical phantom and images from four human subjects. The generated cine LGE images showed both viability and wall motion information in the same set of images without additional scan time or image misregistration problems. The band-pass optical flow analysis resulted in the most accurate motion estimation compared to other methods, especially HARP, which fails to track points at the myocardial boundary. Infarct transmurality from the generated images showed good agreement with myocardial strain, and wall thickening showed good agreement with that measured from conventional cine images. In conclusion, the developed technique allows for generating cine LGE images that enable simultaneous display of wall motion and viability information. The generated images could be useful for estimating myocardial contractility reserve and for treatment prognosis. Copyright © 2015 Elsevier Inc. All rights reserved.

  14. Subacute and Chronic Left Ventricular Myocardial Scar: Accuracy of Texture Analysis on Nonenhanced Cine MR Images.

    Science.gov (United States)

    Baessler, Bettina; Mannil, Manoj; Oebel, Sabrina; Maintz, David; Alkadhi, Hatem; Manka, Robert

    2018-01-01

    Purpose To test whether texture analysis (TA) allows for the diagnosis of subacute and chronic myocardial infarction (MI) on noncontrast material-enhanced cine cardiac magnetic resonance (MR) images. Materials and Methods In this retrospective, institutional review board-approved study, 120 patients who underwent cardiac MR imaging and showed large transmural (volume of enhancement on late gadolinium enhancement [LGE] images >20%, n = 72) or small (enhanced volume ≤20%, n = 48) subacute or chronic ischemic scars were included. Sixty patients with normal cardiac MR imaging findings served as control subjects. Regions of interest for TA encompassing the left ventricle were drawn by two blinded, independent readers on cine images in end systole by using a freely available software package. Stepwise dimension reduction and texture feature selection based on reproducibility, machine learning, and correlation analyses were performed for selecting features, enabling the diagnosis of MI on nonenhanced cine MR images by using LGE imaging as the standard of reference. Results Five independent texture features allowed for differentiation between ischemic scar and normal myocardium on cine MR images in both subgroups: Teta1, Perc.01, Variance, WavEnHH.s-3, and S(5,5)SumEntrp (in patients with large MI: all P values cine MR images, with an area under the curve of 0.93 and 0.92, respectively. Conclusion This proof-of-concept study indicates that TA of nonenhanced cine MR images allows for the diagnosis of subacute and chronic MI with high accuracy. © RSNA, 2017 Online supplemental material is available for this article.

  15. Evaluation of valvular regurgitation by cine magnetic resonance imaging in patients with various cardiac diseases

    International Nuclear Information System (INIS)

    Kubota, Shuuhei; Nishimura, Tsunehiko

    1990-01-01

    In order to evaluate the clinical value and limitation of magnetic resonance imaging (MRI) for detection and quantification of valvular regurgitation, 98 patients with various cardiac diseases were studied by cine MRI and the results were compared with contrast angiography and doppler color-flow imaging. Cine MRI was carried out using FLASH (fast low angle shot) which employs TE of 10∼20 msec and TR of 30∼40 msec. 22 transverse tomograms per cardiac cycle with a slice thickness of 10 mm were obtained at the level of atrium and ventricle. The jet of valvular regurgitation was easily seen as a discrete are of low signal with cine MRI. Identification of the regurgitation and its severity were visually evaluated based on the relative size of the regurgitant jet from the incompetent valve orifice. Using contrast angiography as a gold standard, the sensitivity of cine MRI for detecting mitral regurgitation was 83% and was 94% for aortic regurgitation, with the specificity of 82% and 100%, respectively. For mitral requrgitation and aortic regurgitation, evaluation by cine MRI and severity agreed well with contrast angiography. By the comparative study with doppler color-flow imaging, relatively good agreement was found between the two methods in detection and quantitative evaluation of valvular regurgitation in any of four valves. Cine MRI was suggested to be useful for both the detection and semiquantification of valvular regurgitation in generally, but its clinical limitation at this point was also found because, 1)its images are not acquired in real times, as in contrast angiography or doppler color-flow imaging, but are compiled from the cumulative information from 128 heart beats, 2)the evaluation of regurgitation is made from only two-dimensional transverse tomograms. (author)

  16. Cine colaborativo. Discursos, prácticas y multiplataforma digitales. Hacia una diversificación de formatos transmedia participativos en el Espacio Digital Europeo

    Directory of Open Access Journals (Sweden)

    Virginia VILLAPLANA RUIZ

    2015-12-01

    Full Text Available El presente artículo analiza el nuevo panorama de los discursos y prácticas del cine colaborativo en el Espacio Digital Europeo. El artículo desarrolla tres ejes organizados: la producción audiovisual colaborativa como experiencia para configurar imaginarios sociales críticos; las formas de transmisión y recepción de las imágenes vinculadas a procesos de pensamiento colectivo; y el coaprendizaje como estrategia política en el marco de la educación mediática. El artículo se compone de la recopilación de casos de estudio en Europa que argumenta la emergencia de experiencias y prácticas de producción colaborativa (collaborative film-making as process. En relación a procesos de aprendizaje colectivos y medialiteracy en Europa y que en la actualidad se realizan utilizando el cine y las prácticas audiovisuales en espacio del arte post-digital, mediabroadcast y de participación ciudadana con multiplataformas digitales y redes físicas. Estas prácticas colaborativas inciden en la creación de discursos contrahegemónico sobre migración, género y decolonialidad. Del mismo modo, el artículo propone la exploración de nuevas estrategias discursivas colaborativas relacionadas con los formatos transmedia participativos en el marco del espacio digital europeo con el estudio de los casos de Francia y España.

  17. Nuevos planes, idénticas estrategias: apuntes sobre un cine asturiano actual

    Directory of Open Access Journals (Sweden)

    Pablo Sánchez Blasco

    2014-12-01

    Full Text Available Este artículo hace un repaso a la situación del audiovisual asturiano con especial hincapié en los últimos tres años. Tras la desaparición de las subvenciones y los presupuestos para cine, ha surgido una serie de nombres que ruedan sus proyectos al margen de la industria y que han normalizado el largometraje de ficción comoobjetivo a su alcance. Sus características les hermanan al cine alternativo aparecido en Españaaunque, al mismo tiempo, ofrecen rasgos particulares que matizan su definición.

  18. Routine cine-CMR for prosthesis-associated mitral regurgitation: a multicenter comparison to echocardiography.

    Science.gov (United States)

    Simprini, Lauren A; Afroz, Anika; Cooper, Mitchell A; Klem, Igor; Jensen, Christoph; Kim, Raymond J; Srichai, Monvadi B; Heitner, John F; Sood, Michael; Chandy, Elizabeth; Shah, Dipan J; Lopez-Mattei, Juan; Biederman, Robert W; Grizzard, John D; Fuisz, Anthon; Ghafourian, Kambiz; Farzaneh-Far, Afshin; Weinsaft, Jonathan

    2014-09-01

    Mitral regurgitation (MR) is an important complication after prosthetic mitral valve (PMV) implantation. Transthoracic echocardiography is widely used to screen for native MR, but can be limited with PMV. Cine-cardiac magnetic resonance (CMR) holds the potential for the non-invasive assessment of regurgitant severity based on MR-induced inter-voxel dephasing. The study aim was to evaluate routine cine-CMR for the visual assessment of PMV-associated MR. Routine cine-CMR was performed at nine sites. A uniform protocol was used to grade MR based on jet size in relation to the left atrium (mild 2/3). MR was graded in each long-axis orientation, with overall severity based on cumulative grade. Cine-CMR was also scored for MR density and pulmonary vein systolic flow reversal (PVSFR). Visual interpretation was compared to quantitative analysis in a single-center (derivation) cohort, and to transesophageal echocardiography (TEE) in a multicenter (validation) cohort. The population comprised 85 PMV patients (59% mechanical valves, 41% bioprostheses). Among the derivation cohort (n = 25), quantitative indices paralleled visual scores, with stepwise increases in jet size and density in relation to visually graded MR severity (both p = 0.001). Patients with severe MR had an almost three-fold increase in quantitative jet area (p = 0.002), and a two-fold increase in density (p = 0.04) than did other patients. Among the multicenter cohort, cine-CMR and TEE (Δ =. 2 ± 3 days) demonstrated moderate agreement (κ = 0.44); 64% of discordances differed by ≤ 1 grade (Δ = 1.2 ± 0.5). Using a TEE reference, cine-CMR yielded excellent diagnostic performance for severe MR (sensitivity, negative predictive value = 100%). Patients with visually graded severe MR also had more frequent PVSFR (p cine-CMR. Cine-CMR is useful for the assessment of PMV-associated MR, which manifests concordant quantitative and qualitative changes in size and density of inter-voxel dephasing. Visual MR

  19. Geriatría y cine: una mirada desde la salud

    OpenAIRE

    Beatriz OGANDO DÍAZ

    2016-01-01

    Envejecer no implica enfermar. La OMS en “Salud y envejecimiento” plantea una visión positiva bajo el concepto de “envejecimiento activo” para superar el papel pasivo que se ha otorgado a las personas mayores. La vejez se acompaña de estereotipos que cambian conforme cambia la sociedad. El cine es un buen vehículo para detectarlos y reflexionar sobre ellos.El cine contribuye a la construcción de la representación social de la mirada sobre la vejez. En las últimas décadas muchas películas han ...

  20. Consumo de cine-video : Una investigación empírica

    OpenAIRE

    Wallace, Santiago; Muñoz Cobeñas, Leticia Amelia; Rodríguez, Pablo Gustavo; Silva, Celia; Cabutti, Marcela

    1998-01-01

    Este trabajo recoge parte de los resultados del proyecto de investigación "Las industrias culturales hoy: consumo de cine-video y su relación con las políticas culturales (La Plata)", realizado durante los años 1994 y 1995 en el marco del Programa de Incentivos. Se intentó, en base a los objetivos propuestos analizar las modalidades de elección y consumo al momento de ver cine en el ámbito hogareño. Facultad de Bellas Artes

  1. Three-dimensional visualization of myocardial motion and blood flow with cine-MR images

    International Nuclear Information System (INIS)

    Oshiro, Osamu; Matani, Ayumu; Chihara, Kunihiro; Mikami, Taisei; Kitabatake, Akira.

    1997-01-01

    This paper describes a three-dimensional (3D) reconstruction and presentation method to visualize myocardial motion and blood flow in a heart using cine-MR (magnetic resonance) images. Firstly, the region of myocardium and blood were segmented with certain threshold gray values. Secondly, some slices were interpolated linearly to reconstruct a 3D static image. Finally, a 3D dynamic image was presented with displaying the 3D static images sequentially. The experimental results indicate that this method enables to visualize not only normal but also abnormal blood flow in cine-mode. (author)

  2. A robust automated left ventricle region of interest localization technique using a cardiac cine MRI atlas

    Science.gov (United States)

    Ben-Zikri, Yehuda Kfir; Linte, Cristian A.

    2016-03-01

    Region of interest detection is a precursor to many medical image processing and analysis applications, including segmentation, registration and other image manipulation techniques. The optimal region of interest is often selected manually, based on empirical knowledge and features of the image dataset. However, if inconsistently identified, the selected region of interest may greatly affect the subsequent image analysis or interpretation steps, in turn leading to incomplete assessment during computer-aided diagnosis or incomplete visualization or identification of the surgical targets, if employed in the context of pre-procedural planning or image-guided interventions. Therefore, the need for robust, accurate and computationally efficient region of interest localization techniques is prevalent in many modern computer-assisted diagnosis and therapy applications. Here we propose a fully automated, robust, a priori learning-based approach that provides reliable estimates of the left and right ventricle features from cine cardiac MR images. The proposed approach leverages the temporal frame-to-frame motion extracted across a range of short axis left ventricle slice images with small training set generated from les than 10% of the population. This approach is based on histogram of oriented gradients features weighted by local intensities to first identify an initial region of interest depicting the left and right ventricles that exhibits the greatest extent of cardiac motion. This region is correlated with the homologous region that belongs to the training dataset that best matches the test image using feature vector correlation techniques. Lastly, the optimal left ventricle region of interest of the test image is identified based on the correlation of known ground truth segmentations associated with the training dataset deemed closest to the test image. The proposed approach was tested on a population of 100 patient datasets and was validated against the ground truth

  3. Raster images vectorization system

    OpenAIRE

    Genytė, Jurgita

    2006-01-01

    The problem of raster images vectorization was analyzed and researched in this work. Existing vectorization systems are quite expensive, the results are inaccurate, and the manual vectorization of a large number of drafts is impossible. That‘s why our goal was to design and develop a new raster images vectorization system using our suggested automatic vectorization algorithm and the way to record results in a new universal vectorial file format. The work consists of these main parts: analysis...

  4. Single breath hold 3D cardiac cine MRI using kat-ARC: preliminary results at 1.5T.

    Science.gov (United States)

    Jeong, Daniel; Schiebler, Mark L; Lai, Peng; Wang, Kang; Vigen, Karl K; François, Christopher J

    2015-04-01

    Validation of a new single breath-hold, three-dimensional, cine balanced steady-state free precession (3D cine bSSFP) cardiac magnetic resonance (CMR) sequence for left ventricular function. CMR examinations were performed on fifteen patients and three healthy volunteers on a clinical 1.5T scanner using a two-dimensional (2D) cine balanced SSFP CMR sequence (2D cine bSSFP) followed by an investigational 3D cine bSSFP pulse sequence acquired within a single breath hold. Left ventricular end diastolic volume (LVEDV), end systolic volume (LVESV), ejection fraction (LVEF), and myocardial mass were independently segmented on a workstation by two experienced radiologists. Blood pool to myocardial contrast was evaluated in consensus using a Likert scale. Bland-Altman analysis was used to compare these quantitative and nominal measurements for the two sequences. The average acquisition time was significantly shorter for the 3D cine bSSFP than for 2D cine bSSFP (0.36 ± 0.03 vs. 8.5 ± 2.3 min) p = 0.0002. Bland-Altman analyses [bias and (limits of agreement)] of the data derived from these two methods revealed that the LVEF 0.9% (-4.7, 6.4), LVEDV 4.9 ml (-23.0, 32.8), LVESV -0.2 ml (-22.4, 21.9), and myocardial mass -0.4 g (-23.8, 23.0) were not significantly different. There was excellent intraclass correlation for intra-observer variability (0.981, 0.989, 0.997, 0.985) and inter-observer variability (0.903, 0.954, 0.970, 0.842) for LVEF, LVEDV, LVESV, and myocardial mass respectively. 3D cine bSSFP allows for accurate single breath-hold volumetric cine CMR which enables substantial improvements in scanner time efficiency without sacrificing diagnostic accuracy.

  5. SU-F-T-263: Dosimetric Characteristics of the Cine Acquisition Mode of An A-Si EPID

    Energy Technology Data Exchange (ETDEWEB)

    Bawazeer, O; Deb, P [RMIT University, Melbourne, VIC (Australia); Sarasanandarajah, S [Peter MacCallum Cancer Institute, Melbourne, Victoria (Australia); Herath, S; Kron, T [Peter MacCallum Cancer Institute, Melbourne, VIC (Australia)

    2016-06-15

    Purpose: To investigate the dosimetric characteristics of Varian a-Si-500 electronic portal imaging device (EPID) operated in cine mode particularly considering linearity with delivered dose, dose rate, field size, phantom thickness, MLC speed and common IMRT fields. Methods: The EPID that attached to a Varian Clinac 21iX linear accelerator, was irradiated with 6 and 18 MV using 600 MU/min. Image acquisition is controlled by the IAS3 software, Trigger delay was 6 ms, BeamOnDelay and FrameStartDelay were zero. Different frame rates were utilized. Cine mode response was calculated using MATLAB as summation of mean pixel values in a region of interest of the acquired images. The performance of cine mode was compared to integrated mode and dose measurements in water using CC13 ionization chamber. Results: Figure1 illustrates that cine mode has nonlinear response for small MU, when delivering 10 MU was about 0.5 and 0.64 for 6 and 18 MV respectively. This is because the missing acquired images that were calculated around four images missing in each delivery. With the increase MU the response became linear and comparable with integrated mode and ionization chamber within 2%. Figure 2 shows that cine mode has comparable response with integrated mode and ionization chamber within 2% with changing dose rate for 10 MU delivered. This indicates that the dose rate change has no effect on nonlinearity of cine mode response. Except nonlinearity, cine mode is well matched to integrated mode response within 2% for field size, phantom thickness, MLC speed dependences. Conclusion: Cine mode has similar dosimetric characteristics to integrated mode with open and IMRT fields, and the main limitation with cine mode is missing images. Therefore, the calibration of EPID images with this mode should be run with large MU, and when IMRT verification field has low MU, the correction for missing images are required.

  6. SU-F-T-263: Dosimetric Characteristics of the Cine Acquisition Mode of An A-Si EPID

    International Nuclear Information System (INIS)

    Bawazeer, O; Deb, P; Sarasanandarajah, S; Herath, S; Kron, T

    2016-01-01

    Purpose: To investigate the dosimetric characteristics of Varian a-Si-500 electronic portal imaging device (EPID) operated in cine mode particularly considering linearity with delivered dose, dose rate, field size, phantom thickness, MLC speed and common IMRT fields. Methods: The EPID that attached to a Varian Clinac 21iX linear accelerator, was irradiated with 6 and 18 MV using 600 MU/min. Image acquisition is controlled by the IAS3 software, Trigger delay was 6 ms, BeamOnDelay and FrameStartDelay were zero. Different frame rates were utilized. Cine mode response was calculated using MATLAB as summation of mean pixel values in a region of interest of the acquired images. The performance of cine mode was compared to integrated mode and dose measurements in water using CC13 ionization chamber. Results: Figure1 illustrates that cine mode has nonlinear response for small MU, when delivering 10 MU was about 0.5 and 0.64 for 6 and 18 MV respectively. This is because the missing acquired images that were calculated around four images missing in each delivery. With the increase MU the response became linear and comparable with integrated mode and ionization chamber within 2%. Figure 2 shows that cine mode has comparable response with integrated mode and ionization chamber within 2% with changing dose rate for 10 MU delivered. This indicates that the dose rate change has no effect on nonlinearity of cine mode response. Except nonlinearity, cine mode is well matched to integrated mode response within 2% for field size, phantom thickness, MLC speed dependences. Conclusion: Cine mode has similar dosimetric characteristics to integrated mode with open and IMRT fields, and the main limitation with cine mode is missing images. Therefore, the calibration of EPID images with this mode should be run with large MU, and when IMRT verification field has low MU, the correction for missing images are required.

  7. Kochen-Specker vectors

    International Nuclear Information System (INIS)

    Pavicic, Mladen; Merlet, Jean-Pierre; McKay, Brendan; Megill, Norman D

    2005-01-01

    We give a constructive and exhaustive definition of Kochen-Specker (KS) vectors in a Hilbert space of any dimension as well as of all the remaining vectors of the space. KS vectors are elements of any set of orthonormal states, i.e., vectors in an n-dimensional Hilbert space, H n , n≥3, to which it is impossible to assign 1s and 0s in such a way that no two mutually orthogonal vectors from the set are both assigned 1 and that not all mutually orthogonal vectors are assigned 0. Our constructive definition of such KS vectors is based on algorithms that generate MMP diagrams corresponding to blocks of orthogonal vectors in R n , on algorithms that single out those diagrams on which algebraic (0)-(1) states cannot be defined, and on algorithms that solve nonlinear equations describing the orthogonalities of the vectors by means of statistically polynomially complex interval analysis and self-teaching programs. The algorithms are limited neither by the number of dimensions nor by the number of vectors. To demonstrate the power of the algorithms, all four-dimensional KS vector systems containing up to 24 vectors were generated and described, all three-dimensional vector systems containing up to 30 vectors were scanned, and several general properties of KS vectors were found

  8. Right ventricular volume and mass determined by cine magnetic resonance imaging in HIV patients with possible right ventricular dysfunction

    DEFF Research Database (Denmark)

    Kjaer, Andreas; Lebech, Anne-Mette; Gerstoft, Jan

    2006-01-01

    Impaired right ventricular (RV) function has been reported to occur in patients with HIV when studied by echocardiography. However, for accurate evaluation of RV function and morphology, first-pass radionuclide ventriculography (RNV) and cine magnetic resonance imaging (cine-MRI) are methods...... ventricular ejection fraction (RVEF). To do so, we screened patients with RNV and performed an additional cine-MRI in those with reduced RVEF determined by RNV. Ninety patients with HIV were included. To evaluate the MRI measures exactly we included 18 age- and gender-matched healthy volunteers to establish...

  9. Cine y vanguardias artística: conflictos, encuentros, fronteras [Prólogo e introducción

    OpenAIRE

    Sánchez-Biosca, Vicente

    2004-01-01

    El cine y la vanguardia estaban condenados a encontrarse. Ambos fueron producto del paso del siglo XIX al XX; ambos ambicionaban rupturas y creían ser el punto de partida de una nueva era. Sin embargo, los encuentros no fueron inmediatos y sobre todo, el cine se aventuró pronto en caminos comerciales y narrativos ajenos, incluso opuestos, a los de la vanguardia. Así la condición vanguardiasta del cine plantea desde sus mismos orígenes problemas de definición que no han preocupado tanto a los ...

  10. Música, cotidianidad e identidades colectivas en el cine de Agnès Jaoui

    Directory of Open Access Journals (Sweden)

    Fraile Prieto, Teresa

    2012-12-01

    Full Text Available The films of Agnès Jaoui, a French filmmaker and actress, take an ironic and incisive view of the contemporary French bourgeoisie. Under the guise of dramatic comedies, her films offer polyphonic narratives underlining the difficulties of human relationships, the hypocrisies and the paradoxes of Western societies, as well as constituting a reflection upon identity discourses in present-day France. Jaoui’s biography is also closely linked to music, which comes accross in her films; and music becomes a fundamental element in the plot and a crucial means of expression. This paper analyses all these building blocks and their relation to the reality of France in the following films: Le goût des autres (2000, Comme une image (2004, and Parlez-moi de la pluie (2008.

    El cine de la directora y actriz francesa Agnès Jaoui hace un retrato de la burguesía contemporánea del contexto francés en un tono mordaz e irónico. Bajo la apariencia de comedias dramáticas, sus películas plantean narrativas corales que sacan a la luz la dificultad de las relaciones humanas, las hipocresías y las paradojas de la sociedad occidental, al tiempo que son una reflexión sobre los discursos identitarios de la Francia actual. Además, la biografía de Jaoui presenta una estrecha relación con la música que se ve plasmada en sus películas, convirtiéndose en un factor fundamental de la trama y en un medio expresivo de primer orden en sus producciones. Este artículo aborda el estudio de todos estos elementos constructivos y su relación con la realidad francesa en los largometrajes Le goût des autres (Para todos los gustos, 2000, Comme une image (Como una imagen, 2004, y Parlez-moi de la pluie (Háblame de la lluvia, 2008.

  11. Evaluation of esophageal peristalsis in patients with esophageal tumors. Initial experience with cine MR imaging

    International Nuclear Information System (INIS)

    Koyama, Takashi; Kobayashi, Ari; Hiraga, Akira; Umeoka, Shigeaki; Saga, Tsuneo; Watanabe, Go; Tamai, Ken; Shimada, Yutaka; Togashi, Kaori

    2005-01-01

    We evaluated esophageal peristalsis in patients with esophageal tumors by cine MR using steady-state free precession (SSFP) sequence and correlated the alteration of the esophageal peristalsis with clinical symptoms and tumor stages. Thirteen patients with pathologically proven esophageal tumors, including 12 esophageal cancers and one submucosal leiomyoma, underwent cine MRI using true fast imaging with steady precession (trueFISP) sequence, which is one SSFP sequence, after contrast-enhanced MR scanning for clinical purposes. A total of 120 serial images were obtained within 60 s through the plane along the long axis of the esophagus while patients chewed gum. The serial trueFISP images were evaluated for the presence, frequency, speed of progression, and passage of peristalsis through the tumor. The data from cine MRI were compared with clinical symptoms and tumor stages. Peristalsis was clearly identified in all patients. Seven patients with complete interruption of peristalsis had dysphagia; one with partially impaired peristalsis could intake solid foods with discomfort; and two with partially impaired peristalsis and three with preserved peristalsis remained asymptomatic. Patients with complete or partial interruption of peristalsis had Stage T3 or T4 esophageal cancer. In conclusion, trueFISP cine MR imaging enables direct visualization of esophageal peristalsis in relation to esophageal tumors. Complete interruption of peristalsis causes dysphagia, whereas partial interruption of and preserved peristalsis usually do not cause digestive problems. Interruption of peristalsis may indicate impaired muscle function caused by invasion of advanced esophageal cancers. (author)

  12. Functional imaging of murine hearts using accelerated self-gated UTE cine MRI

    NARCIS (Netherlands)

    Motaal, Abdallah G.; Noorman, Nils; de Graaf, Wolter L.; Hoerr, Verena; Florack, Luc M. J.; Nicolay, Klaas; Strijkers, Gustav J.

    2015-01-01

    We introduce a fast protocol for ultra-short echo time (UTE) Cine magnetic resonance imaging (MRI) of the beating murine heart. The sequence involves a self-gated UTE with golden-angle radial acquisition and compressed sensing reconstruction. The self-gated acquisition is performed asynchronously

  13. Spirometer-controlled Cine-Magnetic Resonance Imaging for Diagnosis of Tracheobronchomalacia in Pediatric Patients

    NARCIS (Netherlands)

    Ciet, P.; Wielopolski, P.; Manniesing, R.; Lever, S.; Bruijne, M. de; Morana, G.; Muzzio, P.C.; Lequin, M.H.; Tiddens, H.A.W.M.

    2014-01-01

    Tracheobronchomalacia (TBM) is defined as an excessive collapse of the intrathoracic trachea. Bronchoscopy is the gold standard to diagnose TBM, but bronchoscopy has major disadvantages, such as general anaesthesia. Cine-CT is a non-invasive alternative to diagnose TBM, but its use in children is

  14. Higher resolution cine imaging with compressed sensing for accelerated clinical left ventricular evaluation.

    Science.gov (United States)

    Lin, Aaron C W; Strugnell, Wendy; Riley, Robyn; Schmitt, Benjamin; Zenge, Michael; Schmidt, Michaela; Morris, Norman R; Hamilton-Craig, Christian

    2017-06-01

    To assess the clinical feasibility of a compressed sensing cine magnetic resonance imaging (MRI) sequence of both high temporal and spatial resolution (CS_bSSFP) in comparison to a balanced steady-state free precession cine (bSSFP) sequence for reliable quantification of left ventricular (LV) volumes and mass. Segmented MRI cine images were acquired on a 1.5T scanner in 50 patients in the LV short-axis stack orientation using a retrospectively gated conventional bSSFP sequence (generalized autocalibrating partially parallel acquisition [GRAPPA] acceleration factor 2), followed by a prospectively triggered CS_bSSFP sequence with net acceleration factor of 8. Image quality was assessed by published criteria. Comparison of sequences was made in LV volumes and mass, image quality score, quantitative regional myocardial wall motion, and imaging time using Pearson's correlation, Bland-Altman and paired 2-tailed Student's t-test. Differences (bSSFP minus CS_bSSFP, mean ± SD) and Pearson's correlations were 14.8 ± 16.3 (P = 0.31) and r = 0.98 (P cine CS_bSSFP accurately and reliably quantitates LV volumes and mass, shortens acquisition times, and is clinically feasible. 1 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2017;45:1693-1699. © 2016 International Society for Magnetic Resonance in Medicine.

  15. Accelerated high-frame-rate mouse heart cine-MRI using compressed sensing reconstruction

    NARCIS (Netherlands)

    Motaal, Abdallah G.; Coolen, Bram F.; Abdurrachim, Desiree; Castro, Rui M.; Prompers, Jeanine J.; Florack, Luc M. J.; Nicolay, Klaas; Strijkers, Gustav J.

    2013-01-01

    We introduce a new protocol to obtain very high-frame-rate cinematographic (Cine) MRI movies of the beating mouse heart within a reasonable measurement time. The method is based on a self-gated accelerated fast low-angle shot (FLASH) acquisition and compressed sensi ng reconstruction. Key to our

  16. Imaging Three-Dimensional Myocardial Mechanics Using Navigator-gated Volumetric Spiral Cine DENSE MRI

    Science.gov (United States)

    Zhong, Xiaodong; Spottiswoode, Bruce S.; Meyer, Craig H.; Kramer, Christopher M.; Epstein, Frederick H.

    2010-01-01

    A navigator-gated 3D spiral cine displacement encoding with stimulated echoes (DENSE) pulse sequence for imaging 3D myocardial mechanics was developed. In addition, previously-described 2D post-processing algorithms including phase unwrapping, tissue tracking, and strain tensor calculation for the left ventricle (LV) were extended to 3D. These 3D methods were evaluated in 5 healthy volunteers, using 2D cine DENSE and historical 3D myocardial tagging as reference standards. With an average scan time of 20.5 ± 5.7 minutes, 3D data sets with a matrix size of 128 × 128 × 22, voxel size of 2.8 × 2.8 × 5.0 mm3, and temporal resolution of 32 ms were obtained with displacement encoding in three orthogonal directions. Mean values for end-systolic mid-ventricular mid-wall radial, circumferential, and longitudinal strain were 0.33 ± 0.10, −0.17 ± 0.02, and −0.16 ± 0.02, respectively. Transmural strain gradients were detected in the radial and circumferential directions, reflecting high spatial resolution. Good agreement by linear correlation and Bland-Altman analysis was achieved when comparing normal strains measured by 2D and 3D cine DENSE. Also, the 3D strains, twist, and torsion results obtained by 3D cine DENSE were in good agreement with historical values measured by 3D myocardial tagging. PMID:20574967

  17. Tissue-Point Motion Tracking in the Tongue from Cine MRI and Tagged MRI

    Science.gov (United States)

    Woo, Jonghye; Stone, Maureen; Suo, Yuanming; Murano, Emi Z.; Prince, Jerry L.

    2014-01-01

    Purpose: Accurate tissue motion tracking within the tongue can help professionals diagnose and treat vocal tract--related disorders, evaluate speech quality before and after surgery, and conduct various scientific studies. The authors compared tissue tracking results from 4 widely used deformable registration (DR) methods applied to cine magnetic…

  18. Compressed sensing reconstruction of cardiac cine MRI using golden angle spiral trajectories.

    Science.gov (United States)

    Tolouee, Azar; Alirezaie, Javad; Babyn, Paul

    2015-11-01

    In dynamic cardiac cine Magnetic Resonance Imaging (MRI), the spatiotemporal resolution is limited by the low imaging speed. Compressed sensing (CS) theory has been applied to improve the imaging speed and thus the spatiotemporal resolution. The purpose of this paper is to improve CS reconstruction of under sampled data by exploiting spatiotemporal sparsity and efficient spiral trajectories. We extend k-t sparse algorithm to spiral trajectories to achieve high spatio temporal resolutions in cardiac cine imaging. We have exploited spatiotemporal sparsity of cardiac cine MRI by applying a 2D+time wavelet-Fourier transform. For efficient coverage of k-space, we have used a modified version of multi shot (interleaved) spirals trajectories. In order to reduce incoherent aliasing artifact, we use different random undersampling pattern for each temporal frame. Finally, we have used nonuniform fast Fourier transform (NUFFT) algorithm to reconstruct the image from the non-uniformly acquired samples. The proposed approach was tested in simulated and cardiac cine MRI data. Results show that higher acceleration factors with improved image quality can be obtained with the proposed approach in comparison to the existing state-of-the-art method. The flexibility of the introduced method should allow it to be used not only for the challenging case of cardiac imaging, but also for other patient motion where the patient moves or breathes during acquisition. Copyright © 2015 Elsevier Inc. All rights reserved.

  19. Copper-Catalyzed Heteroarylboration of 1,3-Dienes with 3-Bromopyridines: A cine Substitution.

    Science.gov (United States)

    Smith, Kevin B; Huang, Yuan; Brown, M Kevin

    2018-04-26

    A method for the heteroarylboration of 1,3-dienes is presented. The process involves an unusual cine substitution of 3-bromopyridine derivatives to deliver highly functionalized heterocyclic products. Mechanistic studies are included that clarify the details of this unusual process. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  20. Assessment of Bladder Motion for Clinical Radiotherapy Practice Using Cine-Magnetic Resonance Imaging

    International Nuclear Information System (INIS)

    McBain, Catherine A.; Khoo, Vincent S.; Buckley, David L.; Sykes, Jonathan S.; Green, Melanie M.; Cowan, Richard A.; Hutchinson, Charles E.; Moore, Christopher J.; Price, Patricia M.

    2009-01-01

    Purpose: Organ motion is recognized as the principal source of inaccuracy in bladder radiotherapy (RT), but there is currently little information on intrafraction bladder motion. Methods and Materials: We used cine-magnetic resonance imaging (cine-MRI) to study bladder motion relevant to intrafraction RT delivery. On two occasions, a 28 minute cine-MRI sequence was acquired from 10 bladder cancer patients and 5 control participants immediately after bladder emptying, after abstinence from drinking for the preceding hour. From the resulting cine sequences, bladder motion was subjectively assessed. To quantify bladder motion, the bladder was contoured in imaging volume sets at 0, 14, and 28 min to measure changes to bladder volumes, wall displacements, and center of gravity (COG) over time. Results: The dominant source of bladder motion during imaging was bladder filling (up to 101% volume increase); rectal and small bowel movements were transient, with minimal impact. Bladder volume changes were similar for all participants. However for bladder cancer patients, wall displacements were larger (up to 58 mm), less symmetrical, and more variable compared with nondiseased control bladders. Conclusions: Significant and individualized intrafraction bladder wall displacements may occur during bladder RT delivery. This important source of inaccuracy should be incorporated into treatment planning and verification.

  1. The Usefulness of Dynamic Cine-Arthrography for Wrist Instability as Correlated with Arthroscopic Palmer Classification

    Energy Technology Data Exchange (ETDEWEB)

    Kim TaeYeon; Lee, Guen Young; Kim, Baek Hyun; Park, Jong Woong; Seo, Bo Kyoung; Cha, Sang Hoon [Korea University Ansan Hospital, Korea University College of Medicine, Ansan (Korea, Republic of)

    2011-05-15

    To introduce dynamic cine-arthrography and compare it with MR arthrography in the diagnosis of intrinsic ligament and triangular fibrocartilage complex tears, based on arthroscopic findings. A total of thirty-eight wrists of 38 patients who had undergone both dynamic cine-arthrography and MR arthrography were enrolled. Dynamic cinearthrography was performed after puncture of the radiocarpal joint by slow injection of contrast under continuous fluoroscopic guidance during passive wrist exercise. We obtained 1.5- or 3-T MR arthrography with fat-suppressed T1-weighted coronal and axial images. We evaluated scapholunate and lunotriquetral ligaments and triangular fibrocartilage complex tears according to the Palmer classification system. Based on the arthroscopic findings, we compared the diagnostic values between the two examinations using Kappa values. The overall sensitivity and specificity of diagnosis of intrinsic ligament tears was similar between dynamic cine-arthrography and MR arthrography (scapholunate ligament: sensitivity 66.7% vs. 80%, specificity 100% vs. 95.7%, lunotriquetral ligament: sensitivity 75.0% vs. 75.0%, specificity 94.1% vs. 91.2%). For triangular fibrocartilage complex tears, all diagnostic values were the same (sensitivity 96.4%, specificity 100%). The inter-examination agreement was substantial to perfect (kappa value 1.000). Dynamic cine-arthrography is valuable in the diagnosis of intrinsic ligament and triangular fibrocartilage complex tears compared to MR arthrography.

  2. Analysis of 3-D Tongue Motion from Tagged and Cine Magnetic Resonance Images

    Science.gov (United States)

    Xing, Fangxu; Woo, Jonghye; Lee, Junghoon; Murano, Emi Z.; Stone, Maureen; Prince, Jerry L.

    2016-01-01

    Purpose: Measuring tongue deformation and internal muscle motion during speech has been a challenging task because the tongue deforms in 3 dimensions, contains interdigitated muscles, and is largely hidden within the vocal tract. In this article, a new method is proposed to analyze tagged and cine magnetic resonance images of the tongue during…

  3. Dynamic change in size of the lateral ventricle evaluated by cine MRI

    International Nuclear Information System (INIS)

    Abe, Toshi

    1990-01-01

    CSF pulsation suggests variation in the size of the cerebral ventricle during the cardiac cycle. CINE MRI, which is a useful technique for observation of the pulsatile CSF flow, demonstrates a dynamic change in size of the lateral ventricle. CINE MRI was performed on a 0.5 tesla MR imaging system (SMT-50, SHIMADZU). Sixteen different phased images during cardiac cycle were made by a gradient acho technique (STAGE: Short Tip Angle Gradient Echo, TE=14 msec, Flip Angle=30deg). From the measurement of the lateral ventricular areas of two different phases of CINE MRI during cadiac cycle, variation rate of cerebral ventricular area (VRCVA) was calculated. Twenty-five normal volunteers (14 younger adults aged 27-44 years, 11 older adults aged 56-73 years) and six cases of marked diffuse cerebral atrophy were studied. The results included: The mean VRCVA of younger adults was 14.4% (at right body of lateral ventricle) ∼ 30.0% (at left anterior horn of lateral ventricle). The mean VRCVA of younger adults is higher than the mean VRCVA of older adults. In the cases of marked diffuse cerebral atrophy, the mean VRCVA was very lower than the mean VRCVA of older adults. VRCVA of lateral ventricle calculated from CINE MRI seemed to have a good relationship to the brain elasticity. This noninvasive method would be used as an indication of the elastic response of the ventricles and the surrounding brain. (J.P.N.)

  4. Experimental study on quantitative evaluation of slow pulsatile flow of CSF with cine MRI

    International Nuclear Information System (INIS)

    Matsuda, Masao

    1991-01-01

    The present study was designed to evaluate the slow pulsatile flow of cerebrospinal fluid (CSF) quantitatively with cine MRI in phantom experiment for the clinical application. The flow phantom was constructed from a plastic tube with a narrow channel to represent the central aqueduct. The phantom was filled with water to represent the CSF. The second tube filled with stationary water was positioned beside the flow phantom and acted as a control for no-flow signal strength. The ratio of signal intensity in regions of interest for the flow phantom and the control was measured. Not only the actual velocity curve of the flowing water through the phantom but also the temporal profile of signal intensity showed two main peaks with other small peaks in one cycle. This suggested a close relationship between signal intensity of cine MRI and flow velocity. A significant correlation between the signal intensity ratio and the velocity was obtained on cine MRI pulse sequences. Cine MRI was thus found to have the ability to give quantitative information about slow pulsatile flow. The most suitable pulse sequence was fast imaging with steady state free precession pulse sequence at the flip angle between 50 and 90 degrees. This preliminary study suggests that the slow pulsatile flow of CSF passing along the aqueduct can be visualized and measured. Thus, the sequence proposed has a potential for the investigation of normal and disturbed CSF circulation and the mapping of the flow pattern in different pathological conditions. (N.K.)

  5. Evaluation of right ventricular regional wall motion in inferior myocardial infarction by cine MRI

    International Nuclear Information System (INIS)

    Nishino, Masami; Ohnishi, Shusaku; Hasegawa, Shinji

    1991-01-01

    The purpose of this study is to evaluate right ventricular regional wall motion in inferior myocardial infarction by cine MRI. Thirteen patients with inferior myocardial infarction were investigated by cine MRI and were divided into proximal group which consisted of seven patients: >90% stenosis in segment 1 or 2 of right coronary artery and distal group which consisted of six patients: >90% stenosis in segment 3 or 4 of right coronary artery. Cine MRI was performed by 1.5 tesla magnet system (Signa, GE). To depict the regional asynergy, right ventricular wall was divided into 6 segments as follows: Segments 1 and 2 were upper and lower segments in transverse planes, respectively. Segments 3 and 4 were free wall and diaphragmatic segments of outflow tract, and segments 5 and 6 were of inflow tract in sagittal planes. Our results were as follows: (1) In proximal group, right ventricular asynergy was detected in six patients but in distal group it was detected in only one patient; (2) Right ventricular asynergy was detected most frequently at diaphragmatic segments in sagittal planes; (3) All the patients who had shown the hemodynamic deterioration of right ventricle on acute phase of inferior myocardial infarction presented the broad asynergy in right ventricle; (4) Cine MRI is clinically useful in evaluating right ventricular regional wall movement and diagnosing right ventricular infarction. (author)

  6. Comparison of left ventricular function assessment using phonocardiogram- and electrocardiogram-triggered 2D SSFP CINE MR imaging at 1.5 T and 3.0 T

    Energy Technology Data Exchange (ETDEWEB)

    Becker, Meike [University Hospital, RWTH Aachen, Department of Diagnostic Radiology, Aachen (Germany); Humboldt-University, Experimental and Clinical Research Center (ECRC), Charite Campus Buch, Berlin (Germany); Frauenrath, Tobias; Hezel, Fabian [University Hospital, RWTH Aachen, Department of Diagnostic Radiology, Aachen (Germany); Berlin Ultrahigh Field Facility, Max-Delbrueck Center for Molecular Medicine, Berlin (Germany); Krombach, Gabriele A.; Kremer, Ute; Koppers, Benedikt [University Hospital, RWTH Aachen, Department of Diagnostic Radiology, Aachen (Germany); Butenweg, Christoph; Goemmel, Andreas [Chair of Structural Statics and Dynamics, RWTH Aachen, Aachen (Germany); Utting, Jane F. [MRI, NHS Grampian, Aberdeen Royal Infirmary, Aberdeen (United Kingdom); Schulz-Menger, Jeanette [Humboldt-University, Working Group Cardiovascular MR, Franz-Volhard-Klinik, Department of Cardiology, HELIOS-Klinikum Berlin-Buch and Charite Campus Buch, Berlin (Germany); Niendorf, Thoralf [University Hospital, RWTH Aachen, Department of Diagnostic Radiology, Aachen (Germany); Humboldt-University, Experimental and Clinical Research Center (ECRC), Charite Campus Buch, Berlin (Germany); Berlin Ultrahigh Field Facility, Max-Delbrueck Center for Molecular Medicine, Berlin (Germany)

    2010-06-15

    As high-field cardiac MRI (CMR) becomes more widespread the propensity of ECG to interference from electromagnetic fields (EMF) and to magneto-hydrodynamic (MHD) effects increases and with it the motivation for a CMR triggering alternative. This study explores the suitability of acoustic cardiac triggering (ACT) for left ventricular (LV) function assessment in healthy subjects (n = 14). Quantitative analysis of 2D CINE steady-state free precession (SSFP) images was conducted to compare ACT's performance with vector ECG (VCG). Endocardial border sharpness (EBS) was examined paralleled by quantitative LV function assessment. Unlike VCG, ACT provided signal traces free of interference from EMF or MHD effects. In the case of correct R-wave recognition, VCG-triggered 2D CINE SSFP was immune to cardiac motion effects - even at 3.0 T. However, VCG-triggered 2D SSFP CINE imaging was prone to cardiac motion and EBS degradation if R-wave misregistration occurred. ACT-triggered acquisitions yielded LV parameters (end-diastolic volume (EDV), end-systolic volume (ESV), stroke volume (SV), ejection fraction (EF) and left ventricular mass (LVM)) comparable with those derived from VCG-triggered acquisitions (1.5 T: ESV{sub VCG} = (56 {+-} 17) ml, EDV{sub VCG} = (151 {+-} 32) ml, LVM{sub VCG} = (97 {+-} 27) g, SV{sub VCG} = (94 {+-} 19) ml, EF{sub VCG} = (63 {+-} 5)% cf. ESV{sub ACT} = (56 {+-} 18) ml, EDV{sub ACT} = (147 {+-} 36) ml, LVM{sub ACT} = (102 {+-} 29) g, SV{sub ACT} = (91 {+-} 22) ml, EF{sub ACT} = (62 {+-} 6)%; 3.0 T: ESV{sub VCG} = (55 {+-} 21) ml, EDV{sub VCG} = (151 {+-} 32) ml, LVM{sub VCG} = (101 {+-} 27) g, SV{sub VCG} = (96 {+-} 15) ml, EF{sub VCG} = (65 {+-} 7)% cf. ESV{sub ACT} = (54 {+-} 20) ml, EDV{sub ACT} = (146 {+-} 35) ml, LVM{sub ACT} = (101 {+-} 30) g, SV{sub ACT} = (92 {+-} 17) ml, EF{sub ACT} = (64 {+-} 6)%). ACT's intrinsic insensitivity to interference from electromagnetic fields renders it suitable for clinical CMR. (orig.)

  7. Routine Cine-CMR for Prosthesis Associated Mitral Regurgitation – A Multicenter Comparison to Echocardiography

    Science.gov (United States)

    Simprini, Lauren A.; Afroz, Anika; Cooper, Mitchell A.; Klem, Igor; Jensen, Christoph; Kim, Raymond J.; Srichai, Monvadi B.; Heitner, John F.; Sood, Michael; Chandy, Elizabeth; Shah, Dipan J.; Lopez-Mattei, Juan; Biederman, Robert W.; Grizzard, John D.; Fuisz, Anthon; Ghafourian, Kambiz; Farzaneh-Far, Afshin; Weinsaft, Jonathan

    2016-01-01

    Background/Aim MR is an important complication after PMV. Transthoracic echocardiography is widely used to screen for native MR, but can be limited with PMV. Cine-CMR holds potential to non-invasively assess regurgitant severity based on MR-induced inter-voxel dephasing. This study evaluated routine cine-CMR for visual assessment of prosthetic mitral valve (PMV) associated mitral regurgitation (MR). Methods Routine cine-CMR was performed at 9 sites. A uniform protocol was used to grade MR based on jet size in relation to the left atrium (mild 2/3): MR was graded in each long axis orientation, with overall severity based on cumulative grade. Cine-CMR was also scored for MR density and pulmonary vein systolic flow reversal (PSFR). Visual interpretation was compared to quantitative analysis in a single center (derivation) cohort, and to transesophageal echocardiography (TEE) in a multicenter (validation) cohort. Results The population comprised 85 PMV patients (59% mechanical, 41% bioprosthetic). Among the derivation cohort (n=25), quantitative indices paralleled visual scores, with stepwise increases in jet size and density in relation to visually graded MR severity (both p=0.001): Patients with severe MR had nearly a 3-fold increase in quantitative jet area (p=0.002), and 2-fold increase in density (p=0.04) than did others. Among the multicenter cohort, cine-CMR and TEE (Δ=2±3 days) demonstrated moderate agreement (κ=0.44); 64% of discordances differed by ≤ 1 grade (Δ=1.2±0.5). Using a TEE reference, cine-CMR yielded excellent diagnostic performance for severe MR (sensitivity, negative predictive value=100%). Patients with visually graded severe MR also had more frequent PVSFR (pcine-CMR. Conclusions Cine-CMR is useful for assessment of PMV-associated MR, which manifests concordant quantitative and qualitative changes in size and density of inter-voxel dephasing. Visual MR assessment based on jet size provides an accurate non-invasive means of screening for

  8. Accelerated two-dimensional cine DENSE cardiovascular magnetic resonance using compressed sensing and parallel imaging.

    Science.gov (United States)

    Chen, Xiao; Yang, Yang; Cai, Xiaoying; Auger, Daniel A; Meyer, Craig H; Salerno, Michael; Epstein, Frederick H

    2016-06-14

    Cine Displacement Encoding with Stimulated Echoes (DENSE) provides accurate quantitative imaging of cardiac mechanics with rapid displacement and strain analysis; however, image acquisition times are relatively long. Compressed sensing (CS) with parallel imaging (PI) can generally provide high-quality images recovered from data sampled below the Nyquist rate. The purposes of the present study were to develop CS-PI-accelerated acquisition and reconstruction methods for cine DENSE, to assess their accuracy for cardiac imaging using retrospective undersampling, and to demonstrate their feasibility for prospectively-accelerated 2D cine DENSE imaging in a single breathhold. An accelerated cine DENSE sequence with variable-density spiral k-space sampling and golden angle rotations through time was implemented. A CS method, Block LOw-rank Sparsity with Motion-guidance (BLOSM), was combined with sensitivity encoding (SENSE) for the reconstruction of under-sampled multi-coil spiral data. Seven healthy volunteers and 7 patients underwent 2D cine DENSE imaging with fully-sampled acquisitions (14-26 heartbeats in duration) and with prospectively rate-2 and rate-4 accelerated acquisitions (14 and 8 heartbeats in duration). Retrospectively- and prospectively-accelerated data were reconstructed using BLOSM-SENSE and SENSE. Image quality of retrospectively-undersampled data was quantified using the relative root mean square error (rRMSE). Myocardial displacement and circumferential strain were computed for functional assessment, and linear correlation and Bland-Altman analyses were used to compare accelerated acquisitions to fully-sampled reference datasets. For retrospectively-undersampled data, BLOSM-SENSE provided similar or lower rRMSE at rate-2 and lower rRMSE at rate-4 acceleration compared to SENSE (p cine DENSE provided good image quality and expected values of displacement and strain. BLOSM-SENSE-accelerated spiral cine DENSE imaging with 2D displacement encoding can be

  9. Tracheomalacia in adults with cystic fibrosis: determination of prevalence and severity with dynamic cine CT.

    LENUS (Irish Health Repository)

    McDermott, Shaunagh

    2012-02-01

    PURPOSE: To determine the prevalence and severity of tracheomalacia in adults with cystic fibrosis (CF) by using dynamic cine multidetector computed tomography (CT) and to correlate these findings with pulmonary function test (PFT) results and the severity of parenchymal lung disease. MATERIALS AND METHODS: In this institutional review board-approved HIPAA-compliant study, 40 patients with CF (22 men, 18 women; mean age, 28 years +\\/- 8 [standard deviation]; age range, 18-54 years) prospectively underwent PFTs, standard thin-section CT, and two dynamic cine multidetector CT acquisitions. Ten control subjects underwent dynamic cine multidetector CT. After standard thin-section CT was completed, dynamic cine multidetector CT was performed during a forced expiratory maneuver and during coughing. Dynamic cine multidetector CT images in nine patients were excluded. Maximal inspiratory, dynamic expiratory, and end-expiratory tracheal luminal areas were compared (Student t test) and correlated (Spearman rank) with PFT results and severity of parenchymal lung disease. RESULTS: Mean predicted forced expiratory volume in 1 second (FEV(1)) was 70.6% +\\/- 20.7, and mean Bhalla CT score was 41.8% +\\/- 13.6. In patients with CF, dynamic cine mean tracheal cross-sectional area reduction was 51.7% +\\/- 18.4 (range, 9%-89%) for forced expiratory maneuvers and 68.8% +\\/- 11.7 (range, 18%-88%) for coughing (P = .001). Tracheomalacia was demonstrated in 24 (69%) patients and no control subjects during forced expiratory maneuvers (P = .001) and in 10 (29%) patients and one (10%) control subject during coughing. For end-expiration images, mean tracheal luminal reduction was 16.1% +\\/- 14.0% (range, 0.0%-53.0%), with one patient demonstrating tracheal luminal reduction of more than 50%. There was no correlation between tracheal cross-sectional luminal reduction and either predicted FEV(1) or CT Bhalla score. CONCLUSION: Tracheomalacia depicted at dynamic cine multidetector CT is a

  10. Estudio descriptivo de la relación entre el cine, la nutrición y patologías asociadas

    Directory of Open Access Journals (Sweden)

    José Miguel BISCAIA FERNÁNDEZ

    2018-01-01

    Full Text Available La repercusión social del cine puede estudiarse a partir de la influencia que ejerce sobre diferentes patrones comportamentales como las conductas alimentarias. En el presente estudio descriptivo se analiza cuantitativa y cualitativamente la presencia de temáticas relacionadas con la nutrición y las diferentes patologías asociadas en películas recientes galardonadas en los Oscar (2000?2015. Los resultados reflejan que en el 32% de las obras estudiadas aparecen personajes o tramas que de forma relevante refieren a los alimentos, la nutrición o patologías asociadas como la obesidad o la anorexia. Además, en un 23% de las películas analizadas los intérpretes modificaron radicalmente su peso corporal por el personaje a interpretar. Pese a la heterogeneidad en el rigor, tratamiento e influencia de las obras estudiadas, destaca la visión positiva frente a hábitos alimentarios saludables de algunas obras de animación (30,8% de las analizadas, películas destinadas fundamentalmente a un público vulnerable como el infantil?juvenil.

  11. Narración, espacio y emplazamiento turístico en el cine español de ficción (1951 – 1977

    Directory of Open Access Journals (Sweden)

    J Nieto Ferrando

    2015-10-01

    Full Text Available La importancia de la industria turística en España es incuestionable. Mucho antes de la aparición de las denominadas film commissions ya puede apreciarse un uso del audiovisual, y en concreto del cine, como instrumento de promoción de los destinos turísticos. Partiendo de esta premisa, el objetivo de la presente investigación es el análisis del espacio turístico como producto emplazado en la estructura narrativa y dramática de las películas de temática turística producidas durante los años de actuación del Ministerio de Información y Turismo (1951 – 1977. Nos situamos, por tanto, en el ámbito del análisis de la narración audiovisual. Los resultados muestran cómo el espacio turístico se concreta en vista turística, se le atribuyen una serie de valores intangibles, en ocasiones por contraste con otros espacios, y puede actuar como digresión respecto a la historia o estar plenamente integrado en su estructura dramática.

  12. Vector regression introduced

    Directory of Open Access Journals (Sweden)

    Mok Tik

    2014-06-01

    Full Text Available This study formulates regression of vector data that will enable statistical analysis of various geodetic phenomena such as, polar motion, ocean currents, typhoon/hurricane tracking, crustal deformations, and precursory earthquake signals. The observed vector variable of an event (dependent vector variable is expressed as a function of a number of hypothesized phenomena realized also as vector variables (independent vector variables and/or scalar variables that are likely to impact the dependent vector variable. The proposed representation has the unique property of solving the coefficients of independent vector variables (explanatory variables also as vectors, hence it supersedes multivariate multiple regression models, in which the unknown coefficients are scalar quantities. For the solution, complex numbers are used to rep- resent vector information, and the method of least squares is deployed to estimate the vector model parameters after transforming the complex vector regression model into a real vector regression model through isomorphism. Various operational statistics for testing the predictive significance of the estimated vector parameter coefficients are also derived. A simple numerical example demonstrates the use of the proposed vector regression analysis in modeling typhoon paths.

  13. Functional imaging of murine hearts using accelerated self-gated UTE cine MRI.

    Science.gov (United States)

    Motaal, Abdallah G; Noorman, Nils; de Graaf, Wolter L; Hoerr, Verena; Florack, Luc M J; Nicolay, Klaas; Strijkers, Gustav J

    2015-01-01

    We introduce a fast protocol for ultra-short echo time (UTE) Cine magnetic resonance imaging (MRI) of the beating murine heart. The sequence involves a self-gated UTE with golden-angle radial acquisition and compressed sensing reconstruction. The self-gated acquisition is performed asynchronously with the heartbeat, resulting in a randomly undersampled kt-space that facilitates compressed sensing reconstruction. The sequence was tested in 4 healthy rats and 4 rats with chronic myocardial infarction, approximately 2 months after surgery. As a control, a non-accelerated self-gated multi-slice FLASH sequence with an echo time (TE) of 2.76 ms, 4.5 signal averages, a matrix of 192 × 192, and an acquisition time of 2 min 34 s per slice was used to obtain Cine MRI with 15 frames per heartbeat. Non-accelerated UTE MRI was performed with TE = 0.29 ms, a reconstruction matrix of 192 × 192, and an acquisition time of 3 min 47 s per slice for 3.5 averages. Accelerated imaging with 2×, 4× and 5× undersampled kt-space data was performed with 1 min, 30 and 15 s acquisitions, respectively. UTE Cine images up to 5× undersampled kt-space data could be successfully reconstructed using a compressed sensing algorithm. In contrast to the FLASH Cine images, flow artifacts in the UTE images were nearly absent due to the short echo time, simplifying segmentation of the left ventricular (LV) lumen. LV functional parameters derived from the control and the accelerated Cine movies were statistically identical.

  14. La Danza Estilizada en clave flamenca y su presencia en el Cine Español de los años sesenta

    Directory of Open Access Journals (Sweden)

    María Jesús Barrios Peralbo

    2016-05-01

    Full Text Available El cine español desde las primeras décadas del s. XX ha dejado constancia de valiosas interpretaciones dancísticas por parte de los bailaores y bailarines más relevantes de aquellos años. A la pantalla cinematográfica se han asomado figuras sobresalientes como Pastora Imperio, Carmen Amaya, Vicente Escudero, Antonio El bailarín, Rafael de Córdova, Güito, Maria Rosa, Antonio Gades; todos ellos han ofrecido interesantes fragmentos coreográficos dejando para la historia de la danza española la impronta de su arte. Fueron los años sesenta uno de los periodos más fructíferos en la representación fílmica del baile español, este hecho logró acercar la danza española a la cultura de masas, dando a conocer al público las propuestas coreográficas de los artistas en auge. El objetivo de este artículo pretende constatar en qué medida los estilos de la danza española se han representado en el cine español. Para ello se ha llevado a cabo el visionado y selección de cuarenta y seis películas con pasajes de danza que fueron filmadas entre los años 1960-1969. Tras la observación y análisis del contenido, y recogida de los datos de la representación visual, obtenemos como resultado que en una gran mayoría de films la danza española se manifiesta en el estilo flamenco puro y en la danza estilizada con un alto registro de las formas del flamenco. Como conclusión, se constata que la revalorización de esta manifestación artística, de forma muy intensa desde los años sesenta, fue un hecho de poderosa influencia posterior tanto en el ámbito dancístico como en el cinematográfico.

  15. Los sistemas educativos en la memoria heterodoxa del cine europeo Education in European Cinema and Society’s Exclusion of the Young

    Directory of Open Access Journals (Sweden)

    Enrique Martínez-Salanova Sánchez

    2010-10-01

    Full Text Available Analizar el cine europeo desde una perspectiva educativa y en cuanto a sus sistemas educativos y la vida en las aulas de profesores y alumnos, es el objeto de este trabajo. El cinematógrafo, desde sus comienzos, ha tenido una gran influencia en el establecimiento de la memoria colectiva europea, en especial, en la visión crítica que aporta al mundo de la pedagogía y la didáctica, que ha tratado casi desde sus inicios, en particular hacia los menores y adolescentes marginados. Se citan brevemente y se presentan una serie de films que tienen que ver con la educación, las aulas, el rol de maestros, profesores, padres y educadores en relación con los niños… temas que han sido recurrentes en el cine europeo, expuesto en su mayor parte de forma crítica, y en ocasiones, de manera satírica o con excepcional dureza. La exclusión, la marginalidad y el abandono, la manipulación de niños y adolescentes, los malos tratos y la dureza despiadada de algunos sistemas educativos… forman parte de la memoria colectiva de Europa, con la ayuda de algunas denuncias del mejor cine que se han realizado en el Continente. Se plantean así agudos interrogantes sobre la educación, los sistemas educativos, los comportamientos de maestros y profesores y la escasez de didácticas adecuadas, así como los conflictos en una sociedad multiétnica.This article analyses the portrayal of education in European cinema from the perspective of systems of education and the behaviour of teachers and pupils in the classroom. Since its very beginnings, cinema has played a significant role in forming the collective European memory, and has cast a critical eye over pedagogy and didactics, especially with regard to young outcasts. The article reviews a number of films whose subject is education, the classroom and the role of parents and teachers in educating children. Education and children is a recurring theme in European cinema, which examines its subject from a critical

  16. Pilot study of dynamic cine CT angiography for the evaluation of abdominal aortic aneurysms : Implications for endograft treatment

    NARCIS (Netherlands)

    Teutelink, A; Rutten, A; Muhs, BE; Olree, M; van Herwaarden, JA; de Vos, AM; Prokop, M; Moll, FL; Verhagen, HJM

    Purpose: To utilize 40-slice electrocardiographically (ECG)-gated cine computed tomographic angiography (CTA) to characterize normal aortic motion during the cardiac cycle at relevant anatomical landmarks in preoperative abdominal aortic aneurysm (AAA) patients. Methods: In 10 consecutive

  17. VectorBase

    Data.gov (United States)

    U.S. Department of Health & Human Services — VectorBase is a Bioinformatics Resource Center for invertebrate vectors. It is one of four Bioinformatics Resource Centers funded by NIAID to provide web-based...

  18. El concepto de "América profunda" en el cine estadounidense de terror (1960-2014)

    OpenAIRE

    Alés Fernández, Rocío

    2015-01-01

    El presente estudio profundiza en el "reverso tenebroso" de la cultura norteamericana a través del cine de terror moderno estadounidense, a través través de una investigación sobre el reverso tenebroso del estereotipo de la "América profunda" en la literatura, en el cine y en las artes plásticas.

  19. Assessment of small bowel motility in patients with chronic intestinal pseudo-obstruction using cine-MRI.

    Science.gov (United States)

    Ohkubo, Hidenori; Kessoku, Takaomi; Fuyuki, Akiko; Iida, Hiroshi; Inamori, Masahiko; Fujii, Tetsuro; Kawamura, Harunobu; Hata, Yasuo; Manabe, Noriaki; Chiba, Toshimi; Kwee, Thomas C; Haruma, Ken; Matsuhashi, Nobuyuki; Nakajima, Atsushi; Takahara, Taro

    2013-07-01

    Chronic intestinal pseudo-obstruction (CIPO) is a rare, serious motility disorder, with life-threatening complications over time. However, lack of an established, non-invasive diagnostic method has caused delays in the diagnosis of this intractable disease. Cine-magnetic resonance imaging (MRI) is an emerging technique, with a potential to evaluate the motility of the entire bowel. We compared small bowel motility in healthy volunteers, patients with irritable bowel syndrome (IBS), and those with CIPO, using cine-MRI, and evaluated the usefulness of cine-MRI as a novel diagnostic method for CIPO. Twelve healthy volunteers, IBS patients, and CIPO patients prospectively underwent cine-MRI at 1.5 T. Luminal diameter, contraction ratio, and contraction cycle were measured and compared between the groups. Cine-MRI provided sufficient dynamic images to assess the motility of the entire small bowel. Luminal diameter (mean±s.d.) in CIPO patients was significantly higher than that in healthy volunteers and IBS patients (43.4±14.1, 11.1±1.5, and 10.9±1.9 mm, respectively), and contraction ratio was significantly lower in CIPO patients than that in healthy volunteers and IBS patients (17.1±11.0%, 73.0±9.3%, and 74.6±9.4%, respectively). No significant differences were observed in the contraction cycle. This study is the first to assess the clinical utility of cine-MRI in CIPO patients. Cine-MRI clearly detected contractility impairments in CIPO patients. Cine-MRI is noninvasive, radiation-free, and can directly evaluate the entire small bowel peristalsis, and can detect the affected loops at a glance; therefore, it might be extremely useful for the diagnosis and follow-up of CIPO patients in clinical practice.

  20. Vínculos entre teatro y cine en La señorita Julia. De August Strindberg a Alf Sjöberg y Liv Ullmann

    Directory of Open Access Journals (Sweden)

    Daniela Oulego

    2016-03-01

    Full Text Available El propósito del presente artículo es abordar comparativamente el texto dramático La señorita Julia, escrito por el dramaturgo August Strindberg, con las versiones fílmicas dirigidas por los cineastas Alf Sjöberg y Liv Ullmann. Si bien la obra responde al naturalismo, consideramos que Strindberg debatió con el carácter determinista de la herencia. En este sentido, elementos de la mitología cristiana, como el festejo de la Noche de San Juan, y la presencia de lo dionisíaco formarán parte del análisis. Asimismo, las divisiones jerárquicas ancestrales entre los sexos, por un lado, y amos y esclavos, por otro, serán vinculadas con la religión desde una mirada crítica del cristianismo. En su película Sjöberg se distanció de Strindberg acentuando en el factor determinista al indagar en la prehistoria de los personajes mediante el recurso técnico del flashback y apelando a metáforas audiovisuales en consonancia con el cine sueco experimental de su tiempo. Del mismo modo, Liv Ullmann, continuó examinando la influencia del determinismo y profundizó la construcción de los personajes desde la animalización planteada por Sjöberg. Por último, las referencias metateatrales del texto original retomadas en esta transposición permitirán enriquecer el estudio interdisciplinario entre teatro y cine.

  1. Generalization of concurrence vectors

    International Nuclear Information System (INIS)

    Yu Changshui; Song Heshan

    2004-01-01

    In this Letter, based on the generalization of concurrence vectors for bipartite pure state with respect to employing tensor product of generators of the corresponding rotation groups, we generalize concurrence vectors to the case of mixed states; a new criterion of separability of multipartite pure states is given out, for which we define a concurrence vector; we generalize the vector to the case of multipartite mixed state and give out a good measure of free entanglement

  2. Vector Network Coding

    OpenAIRE

    Ebrahimi, Javad; Fragouli, Christina

    2010-01-01

    We develop new algebraic algorithms for scalar and vector network coding. In vector network coding, the source multicasts information by transmitting vectors of length L, while intermediate nodes process and combine their incoming packets by multiplying them with L X L coding matrices that play a similar role as coding coefficients in scalar coding. Our algorithms for scalar network jointly optimize the employed field size while selecting the coding coefficients. Similarly, for vector co...

  3. Vector Network Coding Algorithms

    OpenAIRE

    Ebrahimi, Javad; Fragouli, Christina

    2010-01-01

    We develop new algebraic algorithms for scalar and vector network coding. In vector network coding, the source multicasts information by transmitting vectors of length L, while intermediate nodes process and combine their incoming packets by multiplying them with L x L coding matrices that play a similar role as coding c in scalar coding. Our algorithms for scalar network jointly optimize the employed field size while selecting the coding coefficients. Similarly, for vector coding, our algori...

  4. Espacio urbano de proximidad. Una visión de género a través del cine

    Directory of Open Access Journals (Sweden)

    Amparo de Santisteban López

    2015-09-01

    Full Text Available El urbanismo contemporáneo y la calidad de vida en nuestras ciudades se cuestionan desde diferentes sectores. Los nuevos y rápidos crecimientos, sobretodo de las últimas décadas, representan el individualismo, el consumo y la segregación. Esta situación se manifiesta especialmente en los gruposmás vulnerables como son la población afectada por el uso y dominio del espacio urbano según categoría de género. Las nuevas líneas de pensamiento sobre la ciudad, como ente complejo y en evolución que necesita flexibilidad para adaptarse a las personas que la habitan, implican observarla y trabajar en ella desde la escala de la proximidad.Por otro lado, el cine desde sus orígenes es una importante fuente documental de entornos y ambientes urbanos existentes o teóricos. Se plantea pues, como hipótesis la utilidad de este medio como herramienta para el análisis, denuncia y reflexión del fenómeno urbano desde la perspectiva de género. La metodología adoptada se aplica dos películas de diferente época, director, localización y vocación, confirmándose la importancia del material cinematográfico como instrumento para el análisis urbanístico.

  5. Convexity and Marginal Vectors

    NARCIS (Netherlands)

    van Velzen, S.; Hamers, H.J.M.; Norde, H.W.

    2002-01-01

    In this paper we construct sets of marginal vectors of a TU game with the property that if the marginal vectors from these sets are core elements, then the game is convex.This approach leads to new upperbounds on the number of marginal vectors needed to characterize convexity.An other result is that

  6. Custodial vector model

    DEFF Research Database (Denmark)

    Becciolini, Diego; Franzosi, Diogo Buarque; Foadi, Roshan

    2015-01-01

    We analyze the Large Hadron Collider (LHC) phenomenology of heavy vector resonances with a $SU(2)_L\\times SU(2)_R$ spectral global symmetry. This symmetry partially protects the electroweak S-parameter from large contributions of the vector resonances. The resulting custodial vector model spectrum...

  7. Assessment of Left Ventricular Function and Mass on Free-Breathing Compressed Sensing Real-Time Cine Imaging.

    Science.gov (United States)

    Kido, Tomoyuki; Kido, Teruhito; Nakamura, Masashi; Watanabe, Kouki; Schmidt, Michaela; Forman, Christoph; Mochizuki, Teruhito

    2017-09-25

    Compressed sensing (CS) cine magnetic resonance imaging (MRI) has the advantage of being inherently insensitive to respiratory motion. This study compared the accuracy of free-breathing (FB) CS and breath-hold (BH) standard cine MRI for left ventricular (LV) volume assessment.Methods and Results:Sixty-three patients underwent cine MRI with both techniques. Both types of images were acquired in stacks of 8 short-axis slices (temporal/spatial resolution, 41 ms/1.7×1.7×6 mm 3 ) and compared for ejection fraction, end-diastolic and systolic volumes, stroke volume, and LV mass. Both BH standard and FB CS cine MRI provided acceptable image quality for LV volumetric analysis (score ≥3) in all patients (4.7±0.5 and 3.7±0.5, respectively; Pcine MRI (median, IQR: BH standard, 83.8 mL, 64.7-102.7 mL; FB CS, 79.0 mL, 66.0-101.0 mL; P=0.0006). The total acquisition times for BH standard and FB CS cine MRI were 113±7 s and 24±4 s, respectively (Pcine MRI is a clinically useful alternative to BH standard cine MRI in patients with impaired BH capacity.

  8. Evaluation of motion measurement using cine MRI for image guided stereotactic body radiotherapy on a new phantom platform

    Science.gov (United States)

    Cai, Jing; Wang, Ziheng; Yin, Fang-Fang

    2011-01-01

    The objective of this study is to investigate accuracy of motion tracking of cine magnetic resonance imaging (MRI) for image-guided stereotactic body radiotherapy. A phantom platform was developed in this work to fulfill the goal. The motion phantom consisted of a platform, a solid thread, a motor and a control system that can simulate motion in various modes. To validate its reproducibility, the phantom platform was setup three times and imaged with fluoroscopy using an electronic portal imaging device (EPID) for the same motion profile. After the validation test, the phantom platform was evaluated using cine MRI at 2.5 frames/second on a 1.5T GE scanner using five different artificial profiles and five patient profiles. The above profiles were again measured with EPID fluoroscopy and used as references. Discrepancies between measured profiles from cine MRI and EPID were quantified using root-mean-square (RMS) and standard deviation (SD). Pearson’s product moment correlational analysis was used to test correlation. The standard deviation for the reproducibility test was 0.28 mm. The discrepancies (RMS) between all profiles measured by cine MRI and EPID fluoroscopy ranged from 0.30 to 0.49 mm for artificial profiles and ranged from 0.75 to 0.91 mm for five patient profiles. The cine MRI sequence could precisely track phantom motion and the proposed motion phantom was feasible to evaluate cine MRI accuracy. PMID:29296304

  9. Cine magnetic resonance imaging, computed tomography and ultrasonography in the evaluation of chest wall invasion of lung cancer

    International Nuclear Information System (INIS)

    Yokozaki, Michiya; Nawano, Shigeru; Nagai, Kanji; Moriyama, Noriyuki; Kodama, Tetsuro; Nishiwaki, Yutaka.

    1997-01-01

    To assess the usefulness of cine-magnetic resonance imaging (cine-MRI) in the evaluation of chest wall invasion, we compared the results of cine-MRI with those of computed tomography (CT) and ultrasonography (US). Eleven patients were examined who had no pain and who were difficult to diagnose by routine examinations. MRI was performed with a Magnetom SP/4000, 1.5T unit (Siemens, Germany). For cine imaging, continuous turbo-FLUSH (ultra fast low angle shot) images were obtained at an orthogonal section to the chest wall during slow deep breathing. A CT scan was performed using a TCT 900S or Super Helix (Toshiba, Japan) at 1 cm intervals, with section thicknesses of 1 cm throughout the entire chest. US was performed with a model SSA-270A (Toshiba, Japan) with 7.5-MHz linear array scanners (PLF-705S; Toshiba, Japan). Sensitivity, specificity and accuracy were 67%, 75% and 73% for cine MRI, 67%, 63% and 64% for CT, 33%, 75% and 64% for US, respectively. These results indicate that cine MRI is potentially useful for the diagnosis of chest wall invasion of lung cancer. (author)

  10. Hoy como ayer

    OpenAIRE

    Rodríguez M.

    2010-01-01

    Leyendo el artículo titulado “Los medicamentos baratos” de la revista La Farmacia Española, publicada en Madrid el jueves 21 de diciembre de 1893, uno se pregunta cómo puede ser que se reconozca la situación como si fuera de ahora mismo, cómo puede ser que estemos igual que hace más de cien años. Entonces eran los descuentos que se empezaban a extender en las farmacias, francesas sobre todo, y que amenazaban el prestigio profesional de todo el colectivo. Con frases como éstas se define la sit...

  11. La razonabilidad como virtud

    OpenAIRE

    Muñoz Oliveira, Luis Humberto

    2008-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada Esta tesis doctoral explora la idea de que la razonabilidad es una virtud fundamental para que las sociedades plurales puedan convertirse en, o mantenerse como, un sistema de cooperación donde la justicia sea posible. La hipótesis central es que la razonabilidad como virtud es una manera de ser tolerante de forma solidaria, es entender al conciudadano, escucharlo, saber que juntos acordaron las reglas de cooperación y ac...

  12. PA/Lateral chest X-ray is equivalent to cine-fluoroscopy for the detection of conductor externalization in defibrillation leads.

    Science.gov (United States)

    Steinberg, Christian; Sarrazin, Jean-François; Philippon, François; Champagne, Jean; Molin, Franck; Nault, Isabelle; Blier, Louis; Bouchard, Marc-André; Arsenault, Jean; O'Hara, Gilles

    2015-01-01

    Riata™ and Riata ST defibrillation leads (St. Jude Medical, Sylmar, CA, USA) are susceptible to insulation defects with conductor externalization. Cine-fluoroscopy is considered to be the gold standard for the documentation of insulation defects, but similar detection rates have been reported for posterior-anterior (PA)/lateral chest x-ray (CXR) with zooming. Prospective single-center study to assess the diagnostic equivalence of a PA/lateral CXR with zooming for the detection of Riata insulation defects in a direct comparison to cine-fluoroscopy. Seventy-eight consecutive patients underwent 3-view cine-fluoroscopy and a PA/lateral CXR. All CXRs and cine-fluoroscopy images were reviewed by blinded electrophysiologists and staff radiologists. Forty-four of 78 patients had an abnormal cine-fluoroscopy (56%). The diagnostic correlation between PA/lateral CXR and cine-fluoroscopy was excellent (κ = 0.90; 95% confidence interval 0.80-1.00). PA/lateral CXR was equivalent to cine-fluoroscopy for the detection of conductor externalization showing a sensitivity of 97.7% and a specificity of 91.2%. The mean radiation effective dose of CXR was significantly lower compared to cine-fluoroscopy (0.09 millisievert [mSV] vs 0.85 ± 0.47 mSv; P cine-fluoroscopy for the detection of Riata insulation defects and should be considered as the preferred screening method. ©2014 Wiley Periodicals, Inc.

  13. La Escuela de Düsserdolf y el cine de Wim Wenders. The School of Düsserdolf and the cinema of Wim Wenders

    Directory of Open Access Journals (Sweden)

    Pilar Mayorgas

    2012-04-01

    Full Text Available El protagonismo de la imagen fotográfica en el cine de Wim Wenders, ya ha sido largamente estudiado, permitiéndonos un análisis aislado de la fotografía en su cine, que responda a la pregunta: qué estilo fotográfico e influencias se pueden hallar en la filmografía de Wenders. A partir de su propia auto-definición como cineasta y fotógrafo, compararemos sus imágenes, revisando las génesis y nexos que comparten, con el movimiento fotográfico de la Escuela de Düsserdolf que se construye en la misma Alemania de Wenders. Los mentores de esta Nueva Fotografía, son el matrimonio Becher: Bern y Hilla Becher iniciado en 1959, en Düsserdolf, y que junto a sus discípulos: Andreas Gursky, Candida Höfer, Thomas Struth o Thomas Ruff, colocarán a la fotografía en la primera línea del arte actual. Este hecho a un autor multidisciplinar como Wenders, no le pasará inadvertido, sino todo lo contrario; absorberá el nuevo discurso que propone esta Escuela, para exponerlo en sus tomas, revelando así en su cine una exégesis de esta nueva propuesta fotográfica en dialogo con el lenguaje cinematográfico. Todos ellos contribuirán a consolidar la imagen como arte, erigiendo al paisaje como protagonista principal.The role of the photographic image in the film by Wim Wenders has already been extensively studied, allowing us an isolated analysis of the picture at the cinema, to respond to the question: which photographic style and influences can be found in the filmography of Wim Wenders. From its own self-definition as a filmmaker and photographer, compare your images, reviewing the genesis and links that share with the movement's photographic School of Dusserdolf that is being built in the same Germany of Wim Wenders. The mentors of this new photography are marriage Becher: Bern and Hilla Becher initiated in 1959 in Dusserdolf, and that together with his disciples: Andreas Gursky, Candida Höfer, Thomas Struth or Thomas Ruff, positioned at the

  14. Cine postcolonial y de género. La diáspora afro-caribeña en el Reino Unido

    Directory of Open Access Journals (Sweden)

    Durán Almarza, Emilia María

    2012-12-01

    Full Text Available This article offers a critical re-evaluation of films directed by women of Caribbean descent in the United Kingdom. Although their presence in the British tradition is limited, given the marginal position they occupy as a result of the combination of variables such as race, ethnicity, gender, and/or social class, their contribution to British, Afro-diasporic and feminist film traditions cannot be underestimated. Drawing on comparative and transcultural approaches to analyse The Passion of Remembrance, co-directed by Maurine Blackwood and Isaac Julien, and Dreaming Rivers, directed by Martine Atille, both belonging to Sankofa Film Collective, this study highlights the multiple ways in which their work contributed to epistemological developments in the sphere of the so-called "British Black Arts Movement" of the 80s and 90s, as well as to the establishment of what has been called British postcolonial filmmaking.

    El presente artículo trata de ofrecer una re-evaluación crítica del cine dirigido por mujeres de ascendencia caribeña en el Reino Unido. Si bien la presencia de directoras afro-caribeñas en la tradición británica es limitada, dada la posición marginal que ocupan como resultado de la combinación de variables como raza, etnicidad, género, y/o clase social, no se puede desestimar el alcance de su aportación a las tradiciones fílmicas femenina, británica y afro-diaspórica. Aplicando un enfoque comparativo y transcultural a The Passion of Remembrance, codirigida por Maurine Blackwood e Isaac Julien, y Dreaming Rivers, dirigida por Martine Atille, ambas pertenecientes al colectivo Sankofa, este estudio pone de manifiesto las múltiples formas en que sus obras contribuyeron tanto al desarrollo epistemológico del movimiento de las artes británicas negras (“British Black Arts Movement” en las décadas de los años 80 y 90, como al establecimiento de lo que se ha venido a llamar el cine

  15. Rotations with Rodrigues' vector

    International Nuclear Information System (INIS)

    Pina, E

    2011-01-01

    The rotational dynamics was studied from the point of view of Rodrigues' vector. This vector is defined here by its connection with other forms of parametrization of the rotation matrix. The rotation matrix was expressed in terms of this vector. The angular velocity was computed using the components of Rodrigues' vector as coordinates. It appears to be a fundamental matrix that is used to express the components of the angular velocity, the rotation matrix and the angular momentum vector. The Hamiltonian formalism of rotational dynamics in terms of this vector uses the same matrix. The quantization of the rotational dynamics is performed with simple rules if one uses Rodrigues' vector and similar formal expressions for the quantum operators that mimic the Hamiltonian classical dynamics.

  16. TH-A-BRF-04: Intra-Fraction Motion Characterization for Early Stage Rectal Cancer Using Cine-MRI

    International Nuclear Information System (INIS)

    Kleijnen, J; Asselen, B; Burbach, M; Intven, M; Reerink, O; Philippens, M; Lagendijk, J; Raaymakers, B

    2014-01-01

    Purpose: To investigate the intra-fraction motion in patients with early stage rectal cancer using cine-MRI. Methods: Sixteen patient diagnosed with early stage rectal cancer underwent 1.5 T MR imaging prior to each treatment fraction of their short course radiotherapy (n=76). During each scan session, three 2D sagittal cine-MRIs were performed: at the beginning (Start), after 9:30 minutes (Mid), and after 18 minutes (End). Each cine-MRI has a duration of one minute at 2Hz temporal resolution, resulting in a total of 3:48 hours of cine-MRI. Additionally, standard T2-weighted (T2w) imaging was performed. Clinical target volume (CTV) an tumor (GTV) were delineated on the T2w scan and transferred to the first time-point of each cine-MRI scan. Within each cine-MRI, the first frame was registered to the remaining frames of the scan, using a non-rigid B-spline registration. To investigate potential drifts, a similar registration was performed between the first frame of the Start and End scans.To evaluate the motion, the distances by which the edge pixels of the delineations move in anterior-posterior (AP) and cranial-caudal (CC) direction, were determined using the deformation field of the registrations. The distance which incorporated 95% of these edge pixels (dist95%) was determined within each cine-MRI, and between Start- End scans, respectively. Results: Within a cine-MRI, we observed an average dist95% for the CTV of 1.3mm/1.5mm (SD=0.7mm/0.6mm) and for the GTV of 1.2mm/1.5mm (SD=0.8mm/0.9mm), in respectively AP/CC. For the CTV motion between the Start and End scan, an average dist95% of 5.5mm/5.3mm (SD=3.1mm/2.5mm) was found, in respectively AP/CC. For the GTV motion, an average dist95% of 3.6mm/3.9mm (SD=2.2mm/2.5mm) was found in AP/CC, respectively. Conclusion: Although intra-fraction motion within a one minute cine-MRI is limited, substantial intra-fraction motion was observed within the 18 minute time period between the Start and End cine-MRI

  17. Three-dimensional cardiac cine imaging using the kat ARC acceleration: Initial experience in clinical adult patients at 3T.

    Science.gov (United States)

    Okuda, Shigeo; Yamada, Yoshitake; Tanimoto, Akihiro; Fujita, Jun; Sano, Motoaki; Fukuda, Keiichi; Kuribayashi, Sachio; Jinzaki, Masahiro; Nozaki, Atsushi; Lai, Peng

    2015-09-01

    Three-dimensional cardiac cine imaging has demonstrated promising clinical 1.5-Tesla results; however, its application to 3T scanners has been limited because of the higher sensitivity to off-resonance artifacts. The aim of this study was to apply 3D cardiac cine imaging during a single breath hold in clinical patients on a 3T scanner using the kat ARC (k- and adaptive-t auto-calibrating reconstruction for Cartesian sampling) technique and to evaluate the interchangeability between 2D and 3D cine imaging for cardiac functional analysis and detection of abnormalities in regional wall motion. Following institutional review board approval, we obtained 2D cine images with an acceleration factor of two during multiple breath holds and 3D cine images with a net scan acceleration factor of 7.7 during a single breath hold in 20 patients using a 3T unit. Two readers independently evaluated the wall motion of the left ventricle (LV) using a 5-point scale, and the consistency in the detection of regional wall motion abnormality between 2D and 3D cine was analyzed by Cohen's kappa test. The LV volume was calculated at end-diastole and end-systole (LVEDV, LVESV); the ejection fraction (LVEF) and myocardial weight (LVmass) were also calculated. The relationship between functional parameters calculated for 2D and 3D cine images was analyzed using Pearson's correlation analysis. The bias and 95% limit of agreement (LA) were calculated using Bland-Altman plots. In addition, a qualitative evaluation of image quality was performed with regard to the myocardium-blood contrast, noise level and boundary definition. Despite slight degradation in image quality for 3D cine, excellent agreement was obtained for the detection of wall motion abnormalities between 2D and 3D cine images (κ=0.84 and 0.94 for each reader). Excellent correlations between the two imaging methods were shown for the evaluation of functional parameters (r>0.97). Slight differences in LVEDV, LVESV, LVEF and LVmass

  18. En Tránsito: Desplazamientos Nimios en el Cine Latinoamericano (2000-2010 On the Way: Trivial Travelling in Latin American Cinema (2000-2010

    Directory of Open Access Journals (Sweden)

    Luis Valenzuela Prado

    2010-12-01

    Full Text Available Este artículo busca poner en escena y analizar ciertos tránsitos, heterogéneos en su consumación, en el cine latinoamericano (2000-2010. Indaga, a partir de algunas reflexiones de Marc Augé, Isaac Joseph y Michel de Certau, las posibilidades de tránsito, como la idea del "andar que enuncia", propuesta por De Certau. Además, analiza los desplazamientos nimios de sujetos omitidos por discursos macropolíticos o cuyo andar pasa desapercibido en el espacio y paisaje donde se desenvuelven. La construcción de este tránsito sienta sus bases sobre claves como la pobreza, el subdesarrollo, la inmigración, la muerte, el viaje.This article intends to enfatize and analize movements that are different in their consumation in Latin American cinema. The paper studies, through the reflexions of Marc Augé, Isaac Joseph and Michel de Certau, the posibilities of movement as the "enunciating travel" that De Certau proposes. Besides, analizes the trivial travelling of subjects that are omitted by the macropolitical discourses, and whose passing goes out of notice in their spaces and places. The construction of this movement is based in certain keys, such as poverty, underdevelopment, immigration, death and travel.

  19. Cómo hacer cine hoy en Cuba: prostitución y coproducción en “La película de Ana”

    Directory of Open Access Journals (Sweden)

    Karen Genschow

    2016-03-01

    Full Text Available La película de Ana de Daniel Díaz Torres (2012 trata en primer lugar del jineterismo en Cuba, fenómeno que ha determinado ampliamente el contacto entre extranjeros y cubanos desde la apertura al turismo en masas. En la película esto conlleva una reflexión de las relaciones visuales tanto en términos de género como en términos postcoloniales. Mediante la construcción de una película intradiegética ("la película de Ana" se cuestiona la diferencia entre "autenticidad" y puesta en escena y se sugiere, además, que Cuba entera se ha convertido en una especie de "zona de contacto", donde entran en contacto la lógica capitalista y la nostalgia postsoviética y donde lo "auténticamente" cubano aparece como un espectáculo montado para los extranjeros. Al mismo tiempo la película articula una autorreflexión en el sentido de que estas relaciones de poder se evidencian también en las posibilidades de hacer cine hoy en Cuba, que abarcan esencialmente la coproducción con diferentes países europeos.

  20. Fast cine-magnetic resonance imaging point tracking for prostate cancer radiation therapy planning

    International Nuclear Information System (INIS)

    Dowling, J; Chandra, S; Dang, K; Fox, Chris D; Gill, Suki; Kron, T; Pham, D; Foroudi, F

    2014-01-01

    The analysis of intra-fraction organ motion is important for improving the precision of radiation therapy treatment delivery. One method to quantify this motion is for one or more observers to manually identify anatomic points of interest (POIs) on each slice of a cine-MRI sequence. However this is labour intensive and inter- and intra- observer variation can introduce uncertainty. In this paper a fast method for non-rigid registration based point tracking in cine-MRI sagittal and coronal series is described which identifies POIs in 0.98 seconds per sagittal slice and 1.35 seconds per coronal slice. The manual and automatic points were highly correlated (r>0.99, p<0.001) for all organs and the difference generally less than 1mm. For prostate planning peristalsis and rectal gas can result in unpredictable out of plane motion, suggesting the results may require manual verification.

  1. Representaciones de la otredad en el cine argentino contemporáneo

    Directory of Open Access Journals (Sweden)

    Alfredo Dillon

    2016-03-01

    Full Text Available Este trabajo analiza los modos de representación de la otredad en tres películas del cine argentino contemporáneo: Bolivia (2001, Cama adentro (2004 y El hombre de al lado (2009. En las tres obras se problematiza la relación con la diferencia a partir de la presencia de personajes “otros” que encarnan formas de vida diversas: un inmigrante, una mucama y un vecino, respectivamente. Cada película propone, a su vez, una manera distinta de resolver la relación con la alteridad: desde la eliminación del otro hasta la conciliación, el cine ofrece un abanico de respuestas imaginarias para esta encrucijada social.

  2. CineGlobe Film Festival, Wednesday programme with Science Story Telling Hackathon and Oculus Rift

    CERN Multimedia

    Marcelloni De Oliveira, Claudia

    2015-01-01

    Besides the short-film competitions, the second day of 2015 CineGlobe included a Soirée Oculus Rift with the public launch of the “Storytelling Science” Hackathon. CineGlobe and Festival Tous Ecrans joined forces to launch the “Storytelling Science” hackathon, in collaboration with Tribeca Film Institute and LIFT Conference. The keynote speech was given by renowned filmmaker and transmedia creator Michel Reihlac, who spoke about the role of interactive and immersive storytelling techniques in cinematic narrative. By placing the viewer in the center of the story, these new technologies are profoundly changing the way we tell stories. Michel Reilhac designs innovative story based experiences, using digital platforms (cinema, tv, mobile, tablets, …) and real life events. His creative approach to storytelling ambitions to offer viewers/ participants a unique opportunity for an immersive, participatory and interactive experience. During the evening, Oculus Rift virtual reality headsets were available to...

  3. Masculinidad y violencia en el nuevo cine mexicano. Las películas de Luis Estrada

    Directory of Open Access Journals (Sweden)

    Claudia Elizabeth Puente

    2016-01-01

    Full Text Available En este artículo exploraremos la conformación de las masculinidades a través de las representaciones cinematográficas en América latina, específicamente en la obra del mexicano Luis Estrada, parte fundamental del llamado Nuevo cine mexicano en sus obras exhibidas entre 1999 y 2010. Aunque el universo de estudios de masculinidades es cada vez más amplio, las representaciones cinematográficas no han sidomuy exploradas. Este artículo pretende hacer un análisis de las representaciones masculinas y su relación con las representaciones femeninas en el nuevo cine mexicano en un contexto de violencia desde una perspectiva crítica feminista.

  4. La representación de las personas con discapacidad visual en el cine

    Directory of Open Access Journals (Sweden)

    Marta BADIA CORBELLA

    2016-11-01

    Full Text Available Este artículo pretende ser una aproximación sobre cómo el cine ha abordado la realidad de las personas con discapacidad visual. Más concretamente, trata de analizar cuáles han sido las descripciones habituales que se han realizado de las personas ciegas en las películas y cuáles son los estereotipos identificados que las representan. Para ello se han analizado 12 películas, producidas entre 1962 y 2009, que tienen entre sus personajes a personas con discapacidad visual. Aunque en el cine se han producido avances en disipar estereotipos sobre la imagen de la persona con ceguera, todavía en la filmografía se siguen perpetuando representaciones que poco tienen que ver con la realidad de las personas con discapacidad visual.

  5. Treatment and diagnosis of middle fossa arachnoid cyst. Ventriculofiberscopy and cine-MRI

    Energy Technology Data Exchange (ETDEWEB)

    Kamikawa, Shuji; Kuwamura, Keiichi [Hyogo Prefectural Awaji Hospital, Sumoto (Japan); Tamaki, Norihiko

    1998-07-01

    The treatment of intracranial arachnoid cysts is controversial regarding its surgical indication and operative procedures. Conventional surgical approaches such as fenestration, membranectomy, and shunting operation are invasive. Also CT cisternography and/or RI cisternography are invasive, when it has been performed to evaluate the possible CSF communications between the arachnoid cyst and subarachnoid space. Between July 1994 and February 1997, 10 patients with intracranial middle fossa arachnoid cysts were treated with a newly developed ventriculofiberscope which is characterized by splendid mechanical flexibility and high resolution. The cine-MRI, which is a non-invasive diagnostic tool, is used to evaluate the CSF circulation around the cyst fenestration. The patients` ages ranged from 4 months to 10 years, with a mean of 4.46 years. The cyst locations were left middle fossa (9), and right (1). Eight patients presented with macrocrania, 4 with developmental delay, three with seizure, two with headache, and one with subdural hematoma. The patients were preoperatively evaluated by means of MRI and cine-MR images. In all patients ventriculofiberscopic procedures including cyst fenestration, membranous dissection, cyst puncture and shriveling were successfully performed. Postoperative MR and cine-MR studies have shown reduction of the cyst size and appropriate CSF circulation. Neuroendoscopic procedures seem to be the first choice for children with arachnoid cysts and the ventriculofiberscope proved to be very useful not only for cyst fenestration but also for cyst dissection. In addition, the non-invasive cine-MR studies are useful for long follow-up at OPD. (author)

  6. Free breathing whole-heart 3D CINE MRI with self-gated Cartesian trajectory.

    Science.gov (United States)

    Usman, M; Ruijsink, B; Nazir, M S; Cruz, G; Prieto, C

    2017-05-01

    To present a method that uses a novel free-running self-gated acquisition to achieve isotropic resolution in whole heart 3D Cartesian cardiac CINE MRI. 3D cardiac CINE MRI using navigator gating results in long acquisition times. Recently, several frameworks based on self-gated non-Cartesian trajectories have been proposed to accelerate this acquisition. However, non-Cartesian reconstructions are computationally expensive due to gridding, particularly in 3D. In this work, we propose a novel highly efficient self-gated Cartesian approach for 3D cardiac CINE MRI. Acquisition is performed using CArtesian trajectory with Spiral PRofile ordering and Tiny golden angle step for eddy current reduction (so called here CASPR-Tiger). Data is acquired continuously under free breathing (retrospective ECG gating, no preparation pulses interruption) for 4-5min and 4D whole-heart volumes (3D+cardiac phases) with isotropic spatial resolution are reconstructed from all available data using a soft gating technique combined with temporal total variation (TV) constrained iterative SENSE reconstruction. For data acquired on eight healthy subjects and three patients, the reconstructed images using the proposed method had good contrast and spatio-temporal variations, correctly recovering diastolic and systolic cardiac phases. Non-significant differences (P>0.05) were observed in cardiac functional measurements obtained with proposed 3D approach and gold standard 2D multi-slice breath-hold acquisition. The proposed approach enables isotropic 3D whole heart Cartesian cardiac CINE MRI in 4 to 5min free breathing acquisition. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  7. El relato antipolicial en la literatura y el cine: Memento, de Christopher Nolan

    OpenAIRE

    Pardo García, Pedro Javier

    2007-01-01

    [ES]El presente estudio trata sobre el concepto de antipolicial dentro del la literatura y el cine del genero policial. Aborda el caso específico Memento de Christopher Notan donde este concepto se refleja. [EN]This study deals with the concept of antipolicial in the literature and the cinema of the crime novel. It addresses the specific case Memento of Christopher Nolan where this concept is reflected.

  8. Quantification of mechanical ventricular dyssynchrony. Direct comparison of velocity-encoded and cine magnetic resonance imaging

    International Nuclear Information System (INIS)

    Muellerleile, K.; Baholli, L.; Groth, M.

    2011-01-01

    Purpose: The preoperative assessment of mechanical dyssynchrony can help to improve patient selection in candidates for cardiac resynchronization therapy (CRT). The present study compared the performance of velocity-encoded (VENC) MRI to cine-magnetic resonance imaging (MRI) for quantifying mechanical ventricular dyssynchrony. Materials and Methods: VENC-MRI and cine-MRI were performed in 20 patients with heart failure NYHA class III and reduced ejection fraction (median: 24 %, interquartile range: 18 - 28 %) before CRT device implantation. The interventricular mechanical delay (IVMD) was assessed by VENC-MRI as the temporal difference between the onset of aortic and pulmonary flow. Intraventricular dyssynchrony was quantified by cine-MRI, using the standard deviation of time to maximal wall thickening in sixteen left ventricular segments (SDt-16). The response to CRT was assessed in a six-month follow-up. Results: 14 patients (70 %) clinically responded to CRT. A similar accuracy was found to predict the response to CRT by measurements of the IVMD and SDt-16 (75 vs. 70 %; p = ns). The time needed for data analysis was significantly shorter for the IVMD at 1.69 min (interquartile range: 1.66 - 1.88 min) compared to 9.63 min (interquartile range: 8.92 - 11.63 min) for the SDt-16 (p < 0.0001). Conclusion: Measurements of the IVMD by VENC-MRI and the SDt-16 by cine-MRI provide a similar accuracy to identify clinical responders to CRT. However, data analysis of the IVMD is significantly less time-consuming compared to data analysis of the SDt-16. (orig.)

  9. La estructura videoclíptica y su inserción en el cine actual: el caso de

    Directory of Open Access Journals (Sweden)

    Voces Fernández, Javier

    2012-01-01

    Full Text Available En español: El videoclip es un formato híbrido que tiene la capacidad de absorber y moldear otras manifestaciones artísticas. En el presente trabajo trataremos de llegar a una definición satisfactoria del mismo para abordar sus características y posibles clasificaciones, centrando el estudio en los trasvases que se han producido a lo largo de su historia con otras disciplinas artísticas y, en particular, con el cine. En este flujo constante de estéticas estudiaremos el caso del filme The Big Lebowski, dirigido por Joel Coen en 1998, rastreando aquellos elementos compartidos y/o heredados del formato videoclip. Este filme es especialmente interesante debido al planteamiento estético que adopta así como por la utilización que los hermanos Coen hacen de la música, construyendo en numerosos casos verdaderas estructuras videoclípticas.In english: The video clip is a hybrid format that has the capacity to absorb and shape other artistic manifestations. In this paper we shall try to bring it to a satisfactory definition in order to deal with its characteristics and potential classifications, focusing the study on the transfers that has taken placethroughout history with other artistic disciplines and, in particular, with cinema. In this constant aesthetics flow we will study the case of the film The Big Lebowski, directed by Joel Coen in 1998, tracing those shared and/or inherited elements from the video clip format. This film is particularly interesting due to its aesthetic approach as well as to the use that Coen brothers make of music, creating in many cases true video clip-like structures.

  10. Cine MR imaging in mitral valve prolapse; Study on mitral regurgitation and left atrial volume

    Energy Technology Data Exchange (ETDEWEB)

    Kumai, Toshihiko [Chiba Univ. (Japan). School of Medicine

    1993-02-01

    This study was undertaken to assess the ability of cine MR imaging to evaluate the direction, timing, and severity of mitral regurgitation in patients with mitral valve prolapse (MVP). The population of this study was 33 patients with MVP diagnosed by two-dimensional echocardiography and 10 patients with rheumatic mitral valve disease (MSR) for comparison. 7 patients with MVP and 5 with MSR had atrial fibrillation and/or history of congestive heart failure as complications. Mitral regurgitation was graded for severity by color Doppler flow imaging in all patients. Direction and size of systolic flow void in the left atrium were analyzed by contiguous multilevel cine MR images and the maximum volumes of flow void and left atrium were measured. Although flow void was found at the center of the left atrium in most of MSR, it was often directed along the postero-caudal atrial wall in anterior leaflet prolapse and along the anterocranial atrial wall in posterior leaflet prolapse. In MVP, the maximum volume of flow void was often seen in late systole. The maximum volume of flow void and that of left atrium were significantly larger in patients with atrial fibrillation and/or history of congestive heart failure. The length and volume of flow void were increased with clinical severity and degree of regurgitation determined by color Doppler flow imaging. Thus cine MR imaging provides a useful means for detection and semiquantitative evaluation of mitral regurgitation in subjects with MVP. (author).

  11. Clinical usefulness of cardiac cine magnetic resonance imaging in patients with atrial fibrillation

    Energy Technology Data Exchange (ETDEWEB)

    Sakakura, Kazuyoshi; Anno, Hirofumi; Kondo, Takeshi [Fujita Health Univ., Toyoake, Aichi (Japan); and others

    1993-05-01

    We studied the clinical usefulness of cine mode magnetic resonance (MR) imaging in patients with atrial fibrillation (AF) from aspects of image quality and cardiac function. The signal-to-noise (S/N) ratio in the myocardium was significantly (p<0.05) lower in patients with AF than those with normal sinus rhythm. Two radiologists who did not know any patient's information evaluated the image quality visually by marking method on a scale of 12 points. There was no difference of image quality between the two groups. The standard deviation of R-R interval was significantly (r=-0.92, p<0.001) correlated with the S/N ratio in myocardium. Consequently, it was not favorable to estimate visually cardiac cine MR image in patients with AF, when standard deviation of R-R interval was large. The left ventricular (LV) end diastolic, end systolic and stroke volumes and ejection fraction were closely (r=0.82[approx]0.95, p<0.05[approx]0.001) correlated between MR imaging and M-mode echocardiography, respectively. The ability to detect left side valvular regurgitation was almost equal in both MR imaging and color Doppler echocardiography. This result was coincided to previous papers in patients with normal sinus rhythm. In conclusion, cine mode MR imaging was also useful to analyze cardiac function and detect valvular regurgitation in patients with AF. (author).

  12. Measurement of left ventricular volume by biplane cine magnetic resonance imaging in children

    Energy Technology Data Exchange (ETDEWEB)

    Ichida, Fukiko; Hamamichi, Yuuji; Hashimoto, Ikuo; Tsubata, Shinichi; Miyazaki, Ayumi; Okada, Toshio; Murakami, Arata; Futatsuya, Ryuusuke (Toyama Medical and Pharmaceutical Univ. (Japan))

    1993-09-01

    To determine the ability of cine magnetic resonance imaging (MRI) to assess left ventricular (LV) volumes, we studied 20 children (age 4 months to 10 years) with various heart disease, validated by comparison with biplane LV angiography. Previous MRI studies to assess LV volumes have used multiple axial planes, which are compromised by partial volume effects and are time consuming to acquire and analyze. Accordingly, an imaging approach using biplane cine MRI and planes aligned with the true cardiac axes (the intrinsic long and short axis) of the LV was developed in views comparable with biplane LV angiography. In all patients, LV volumes were calculated by a Simpson's rule algorithm, both in MRI and LV angiography. MRI determined LV volumes were slightly underestimated but correlated reasonably well with angiographic values (LVEDV: Y=0.88X + 1.58, R=0.98, LVESV: Y=0.72X + 1.02, R=0.98). Especially, even in the patients who have abnormal left ventricular geometry such as Tetralogy of Fallot, MRI determined LV volumes correlated well with angiographic values. It is concluded that biplane cine MRI, using the intrinsic LV long and short axis planes, permits noninvasive assessment of LV volumes in views comparable to standard angiographic projections and appears practical for clinical use in childhood heart disease, because the scan and analysis time are relatively short. (author).

  13. Normal nonuniformity of left ventricular contraction. Assessment by cine MR imaging with presaturation myocardial tagging

    International Nuclear Information System (INIS)

    Naito, H.; Arisawa, J.; Harada, K.; Yamagami, H.; Kozuka, T.; Tamura, S.

    1996-01-01

    Purpose: To identify the normal performance of left ventricular (LV) regional contraction using cine MR imaging with presaturation myocardial tagging. Material and Methods: Sixteen normal volunteers were examined on a 1.5 T MR system with tagging cine sequences. Tags were applied at end-diastole as 2 parallel black lines on short-axis and 4-chamber sections, and the fractional shortenings were calculated at 7 LV locations. Results: The following results were obtained with significance: A transmural gradient of contractility in the short-axis section; prolonged late-systolic endocardial shortening and epicardial early termination in the free wall; initial delay of shortening in the anterior wall; apical predominance of contractility; predominance of circumferential shortening in the free wall and of meridional shortening in the septum. These findings could be associated with myocardial fiber architecture, presumed wall stress and temporal asynergy of excitation. Conclusion: Cine MR imaging with myocardial tagging proved to be useful in assessing the nonuniformity of LV contraction. (orig.)

  14. Colon wall motility: comparison of novel quantitative semi-automatic measurements using cine MRI.

    Science.gov (United States)

    Hoad, C L; Menys, A; Garsed, K; Marciani, L; Hamy, V; Murray, K; Costigan, C; Atkinson, D; Major, G; Spiller, R C; Taylor, S A; Gowland, P A

    2016-03-01

    Recently, cine magnetic resonance imaging (MRI) has shown promise for visualizing movement of the colonic wall, although assessment of data has been subjective and observer dependent. This study aimed to develop an objective and semi-automatic imaging metric of ascending colonic wall movement, using image registration techniques. Cine balanced turbo field echo MRI images of ascending colonic motility were acquired over 2 min from 23 healthy volunteers (HVs) at baseline and following two different macrogol stimulus drinks (11 HVs drank 1 L and 12 HVs drank 2 L). Motility metrics derived from large scale geometric and small scale pixel movement parameters following image registration were developed using the post ingestion data and compared to observer grading of wall motion. Inter and intra-observer variability in the highest correlating metric was assessed using Bland-Altman analysis calculated from two separate observations on a subset of data. All the metrics tested showed significant correlation with the observer rating scores. Line analysis (LA) produced the highest correlation coefficient of 0.74 (95% CI: 0.55-0.86), p cine MRI registered data provides a quick, accurate and non-invasive method to detect wall motion within the ascending colon following a colonic stimulus in the form of a macrogol drink. © 2015 John Wiley & Sons Ltd.

  15. Pulmonary branch arterial flow can be measured with cine MR velocity mapping

    International Nuclear Information System (INIS)

    Caputo, G.R.; Kondo, C.; Masui, T.; Foster, E.; Geraci, S.J.; O'Sullivan, M.; Higgins, C.B.

    1990-01-01

    This paper assesses the capability of cine MR phase velocity mapping (CVM) to measure main, right-sided, and left-sided pulmonary arterial (PA) blood flow. The authors examined a constant-flow phantom and nine healthy volunteers with use of 1.5-T MR imaging system (GE Signa) with phase velocity cine sequences. CVM correctly measured constant-flow phantom velocities (range, 20-190 cm/sec; r = .998, SEE = 4.2 cm/sec), and velocity with use of angulated planes to section the phantom tube perpendicularly. CVM peak systolic main PA velocity (79 cm/sec ± 10) correlated well with Doppler US measurements (80 cm/sec ± 7). CVM main PA flow correlated well with conventional cine MR LV stroke volume measurements (r = .98, SEE = 4.8 mL). Left and right PA flow on the angulated planes were 29 mL ± 7 and 34 mL ± 10, respectively

  16. UN CINEASTA CHILENO. KUZMANICH Y EL CINE DE LA VIOLENCIA EN COLOMBIA

    Directory of Open Access Journals (Sweden)

    Angélica María Mateus Mora

    2007-07-01

    Full Text Available La autora presenta un análisis del film Canaguaro (1981 del chileno Dunav Kuzmanich.Se trata de una realización cinematográfica colombiana profundamenteinnovadora en su constitución, en cuanto desarrolla una construcción colectiva e imaginaria de la violencia. En este contexto de la violencia sociopolítica de la guerrilla, el protagonista no es necesariamente un personaje, sino que es el pueblo, algo que es interesante pues conecta el cine latinoamericano con una larga reflexión ensayística. Este film, muestra un cine que asume una posición crítica frente a la historia colombiana oficial, con la clara intención de develar episodios ocultos de esta historia, en especial de una etapa particular, donde el cine logra, incluso más que la misma historiografía, representar la complejidad histórica, analizar los procesos internos y proyectar esa realidad histórica al presente.

  17. Measurement of left ventricular volume by biplane cine magnetic resonance imaging in children

    Energy Technology Data Exchange (ETDEWEB)

    Ichida, Fukiko; Hamamichi, Yuuji; Hashimoto, Ikuo; Tsubata, Shinichi; Miyazaki, Ayumi; Okada, Toshio; Murakami, Arata; Futatsuya, Ryuusuke [Toyama Medical and Pharmaceutical Univ. (Japan)

    1993-09-01

    To determine the ability of cine magnetic resonance imaging (MRI) to assess left ventricular (LV) volumes, we studied 20 children (age 4 months to 10 years) with various heart disease, validated by comparison with biplane LV angiography. Previous MRI studies to assess LV volumes have used multiple axial planes, which are compromised by partial volume effects and are time consuming to acquire and analyze. Accordingly, an imaging approach using biplane cine MRI and planes aligned with the true cardiac axes (the intrinsic long and short axis) of the LV was developed in views comparable with biplane LV angiography. In all patients, LV volumes were calculated by a Simpson's rule algorithm, both in MRI and LV angiography. MRI determined LV volumes were slightly underestimated but correlated reasonably well with angiographic values (LVEDV: Y=0.88X + 1.58, R=0.98, LVESV: Y=0.72X + 1.02, R=0.98). Especially, even in the patients who have abnormal left ventricular geometry such as Tetralogy of Fallot, MRI determined LV volumes correlated well with angiographic values. It is concluded that biplane cine MRI, using the intrinsic LV long and short axis planes, permits noninvasive assessment of LV volumes in views comparable to standard angiographic projections and appears practical for clinical use in childhood heart disease, because the scan and analysis time are relatively short. (author).

  18. Measurement of left ventricular volume by biplane cine magnetic resonance imaging in children

    International Nuclear Information System (INIS)

    Ichida, Fukiko; Hamamichi, Yuuji; Hashimoto, Ikuo; Tsubata, Shinichi; Miyazaki, Ayumi; Okada, Toshio; Murakami, Arata; Futatsuya, Ryuusuke

    1993-01-01

    To determine the ability of cine magnetic resonance imaging (MRI) to assess left ventricular (LV) volumes, we studied 20 children (age 4 months to 10 years) with various heart disease, validated by comparison with biplane LV angiography. Previous MRI studies to assess LV volumes have used multiple axial planes, which are compromised by partial volume effects and are time consuming to acquire and analyze. Accordingly, an imaging approach using biplane cine MRI and planes aligned with the true cardiac axes (the intrinsic long and short axis) of the LV was developed in views comparable with biplane LV angiography. In all patients, LV volumes were calculated by a Simpson's rule algorithm, both in MRI and LV angiography. MRI determined LV volumes were slightly underestimated but correlated reasonably well with angiographic values (LVEDV: Y=0.88X + 1.58, R=0.98, LVESV: Y=0.72X + 1.02, R=0.98). Especially, even in the patients who have abnormal left ventricular geometry such as Tetralogy of Fallot, MRI determined LV volumes correlated well with angiographic values. It is concluded that biplane cine MRI, using the intrinsic LV long and short axis planes, permits noninvasive assessment of LV volumes in views comparable to standard angiographic projections and appears practical for clinical use in childhood heart disease, because the scan and analysis time are relatively short. (author)

  19. The Diegesis of Benjamin Button: A Method for Comparing Literature and Film (La diégesis de Benjamin Button: método para comparar literatura y cine

    Directory of Open Access Journals (Sweden)

    Joe Montenegro Bonilla

    2014-11-01

    Full Text Available This article proposes a specific structuralist methodology that may help organize the analysis of the relationship between literature and cinema. Through the instance of F. Scott Fitzgerald’s short story “The Curious Case of Benjamin Button” and David Fincher’s film adaptation of it, a focus on the comparable diegetic structures of a narrative cinematic text and the literary work on which it is based is offered, along with an exploration of the semiotic codes that support their comparative textual analyses. Este artículo propone una metodología estructuralista específica que posibilita organizar el estudio para analizar la relación entre la literatura y el cine. Utilizando como ejemplo el cuento de F. Scott Fitzgerald “El curioso caso de Benjamin Button” y su adaptación al cine de David Fincher, se ofrece un enfoque en las estructuras diegéticas comparables entre un texto cinematográfico narrativo y la obra literaria en la cual se basa; además de una exploración de los códigos semióticos que sustentan los análisis textuales comparados de ambos textos.

  20. Cine Computed Tomography Without Respiratory Surrogate in Planning Stereotactic Radiotherapy for Non-Small-Cell Lung Cancer

    International Nuclear Information System (INIS)

    Riegel, Adam C. B.A.; Chang, Joe Y.; Vedam, Sastry S.; Johnson, Valen; Chi, Pai-Chun Melinda; Pan, Tinsu

    2009-01-01

    Purpose: To determine whether cine computed tomography (CT) can serve as an alternative to four-dimensional (4D)-CT by providing tumor motion information and producing equivalent target volumes when used to contour in radiotherapy planning without a respiratory surrogate. Methods and Materials: Cine CT images from a commercial CT scanner were used to form maximum intensity projection and respiratory-averaged CT image sets. These image sets then were used together to define the targets for radiotherapy. Phantoms oscillating under irregular motion were used to assess the differences between contouring using cine CT and 4D-CT. We also retrospectively reviewed the image sets for 26 patients (27 lesions) at our institution who had undergone stereotactic radiotherapy for Stage I non-small-cell lung cancer. The patients were included if the tumor motion was >1 cm. The lesions were first contoured using maximum intensity projection and respiratory-averaged CT image sets processed from cine CT and then with 4D-CT maximum intensity projection and 10-phase image sets. The mean ratios of the volume magnitude were compared with intraobserver variation, the mean centroid shifts were calculated, and the volume overlap was assessed with the normalized Dice similarity coefficient index. Results: The phantom studies demonstrated that cine CT captured a greater extent of irregular tumor motion than did 4D-CT, producing a larger tumor volume. The patient studies demonstrated that the gross tumor defined using cine CT imaging was similar to, or slightly larger than, that defined using 4D-CT. Conclusion: The results of our study have shown that cine CT is a promising alternative to 4D-CT for stereotactic radiotherapy planning

  1. Accuracy of accelerated cine MR imaging at 3 Tesla in longitudinal follow-up of cardiac function

    International Nuclear Information System (INIS)

    Sandner, Torleif A.; Huber, Armin M.; Theisen, Daniel; Reiser, Maximilian F.; Wintersperger, Bernd J.; Houck, Philip; Runge, Val M.; Sincleair, Spencer

    2008-01-01

    The ability of fast, parallel-imaging-based cine magnetic resonance (MR) to monitor global cardiac function in longitudinal exams at 3 Tesla was evaluated. Seventeen patients with chronic cardiac disease underwent serial cine MR imaging exams (n=3) at 3 Tesla. Data were acquired in short-axis orientation using cine steady-state free precession (SSFP) with a spatial resolution of 2.5 x 1.9 mm 2 at 45 ms temporal resolution. Multislice imaging (three slices/breath-hold) was performed using TSENSE acceleration (R=3) and standard single-slice cine (non-TSENSE) was performed at identical locations in consecutive breath-holds. End-diastolic volume (EDV), end-systolic volume (ESV), ejection fraction (EF) and myocardial mass (MM) of both cine approaches were compared for individual time-points as well as for longitudinal comparison. TSENSE-cine did not show significant differences for EDV (2.6 ml; P=.79), ESV (2.2 ml; P=0.81), EF (-0.3%; P=0.95) and MM (2.4 g; P=0.72) in comparison with non-TSENSE. Longitudinal ANOVA analysis did not reveal significant differences for any parameter, neither for non-TSENSE data (all P>0.7) nor for TSENSE data (all P>0.9). Multifactorial ANOVA showed non-significant differences (all P>0.7) at comparable data variances. Data acquisition was significantly shortened using TSENSE. Threefold accelerated multislice cine at 3 Tesla allows accurate assessment of volumetric LV data and accurate longitudinal monitoring of global LV function at a substantially shorter overall examination time. (orig.)

  2. Feasibility of free-breathing, GRAPPA-based, real-time cardiac cine assessment of left-ventricular function in cardiovascular patients at 3 T

    International Nuclear Information System (INIS)

    Zhu, Xiaomei; Schwab, Felix; Marcus, Roy; Hetterich, Holger; Theisen, Daniel; Kramer, Harald; Notohamiprodjo, Mike; Schlett, Christopher L.; Nikolaou, Konstantin; Reiser, Maximilian F.

    2015-01-01

    Highlights: • Grappa-based real time cine cardiac MRI is feasible for assessment of left ventricular function. • Significant underestimation of systolic function, peak ejection and filling rates needs to be considered. • Heart rate is the only positive predictor of the deviation of obtained parameters. - Abstract: Objectives: To determine the feasibility of free-breathing, GRAPPA-based, real-time (RT) cine 3 T cardiac magnetic resonance imaging (MRI) with high acceleration factors for the assessment of left-ventricular function in a cohort of patients as compared to conventional segmented cine imaging. Materials and methods: In this prospective cohort study, subjects with various cardiac conditions underwent MRI involving two RT cine sequences (high resolution and low resolution) and standard segmented cine imaging. Standard qualitative and quantitative parameters of left-ventricular function were quantified. Results: Among 25 subjects, 24 were included in the analysis (mean age: 50.5 ± 21 years, 67% male, 25% with cardiomyopathy). RT cine derived quantitative parameters of volumes and left ventricular mass were strongly correlated with segmented cine imaging (intraclass correlation coefficient [ICC]: >0.72 for both RT cines) but correlation for peak ejection and filling rates were moderate to poor for both RT cines (ICC < 0.40). Similarly, RT cines significantly underestimated peak ejection and filling rates (>103.2 ± 178 ml/s). Among patient-related factors, heart rate was strongly predictive for deviation of measurements (p < 0.05). Conclusions: RT cine MRI at 3 T is feasible for qualitative and quantitative assessment of left ventricular function for low and high-resolution sequences but results in significant underestimation of systolic function, peak ejection and filling rates

  3. SPAMM, cine phase contrast imaging and fast spin-echo T2-weighted imaging in the study of intracranial cerebrospinal fluid (CSF) flow

    International Nuclear Information System (INIS)

    Connor, S.E.J.; O'Gorman, R.; Summers, P.; Simmons, A.; Moore, E.M.; Chandler, C.; Jarosz, J.M.

    2001-01-01

    AIM: To compare the qualitative assessment of cerebrospinal fluid (CSF) flow using a SPAMM (spatial modulation of magnetization) technique with cine phase contrast images (cine PC) and fast spin echo (FSE) T2-weighted images. MATERIALS AND METHODS: SPAMM, PC and T2-weighted sequences were performed on 22 occasions in 19 patients. Eleven of the studies were performed following a neuroendoscopic third ventriculostomy (NTV), and in these cases, the success of the NTV was determined by clinical follow-up. Two observers used consensus to grade the presence of CSF flow at nine different sites for each study. RESULTS: At 14 of the 178 matched sites, which could be assessed by both SPAMM and cine PC, SPAMM CSF flow grade was higher than that of cine PC. At a further 14/178 matched sites, the cine PC grade was higher than that of SPAMM. There was definite CSF flow at 113/182 (62%) of all the cine PC sites assessed, and 110/181 (61%) of all SPAMM sites assessed whilst 108/198 (54%) of FSE T2-weighted image sites demonstrated flow voids. Cine PC grades were higher than SPAMM at the cerebral aqueduct (P < 0.05, Wilcoxon sign rank test). Definite CSF flow within the anterior third ventricle was present in 4/5 (SPAMM) and 3/5 (cine PC) successful NTVs, 0/2 (SPAMM and cine PC) unsuccessful NTVs and 1/10 (SPAMM and cine PC) patients without NTV. CONCLUSION: SPAMM provides a comparable assessment of intracranial CSF flow to that of cine phase contrast imaging at all CSF sites except the cerebral aqueduct. Connor, S.E.J. et al. (2001)

  4. Supergravity inspired vector curvaton

    International Nuclear Information System (INIS)

    Dimopoulos, Konstantinos

    2007-01-01

    It is investigated whether a massive Abelian vector field, whose gauge kinetic function is growing during inflation, can be responsible for the generation of the curvature perturbation in the Universe. Particle production is studied and it is shown that the vector field can obtain a scale-invariant superhorizon spectrum of perturbations with a reasonable choice of kinetic function. After inflation the vector field begins coherent oscillations, during which it corresponds to pressureless isotropic matter. When the vector field dominates the Universe, its perturbations give rise to the observed curvature perturbation following the curvaton scenario. It is found that this is possible if, after the end of inflation, the mass of the vector field increases at a phase transition at temperature of order 1 TeV or lower. Inhomogeneous reheating, whereby the vector field modulates the decay rate of the inflaton, is also studied

  5. Custodial vector model

    Science.gov (United States)

    Becciolini, Diego; Franzosi, Diogo Buarque; Foadi, Roshan; Frandsen, Mads T.; Hapola, Tuomas; Sannino, Francesco

    2015-07-01

    We analyze the Large Hadron Collider (LHC) phenomenology of heavy vector resonances with a S U (2 )L×S U (2 )R spectral global symmetry. This symmetry partially protects the electroweak S parameter from large contributions of the vector resonances. The resulting custodial vector model spectrum and interactions with the standard model fields lead to distinct signatures at the LHC in the diboson, dilepton, and associated Higgs channels.

  6. Vector Differential Calculus

    OpenAIRE

    HITZER, Eckhard MS

    2002-01-01

    This paper treats the fundamentals of the vector differential calculus part of universal geometric calculus. Geometric calculus simplifies and unifies the structure and notation of mathematics for all of science and engineering, and for technological applications. In order to make the treatment self-contained, I first compile all important geometric algebra relationships,which are necesssary for vector differential calculus. Then differentiation by vectors is introduced and a host of major ve...

  7. Implicit Real Vector Automata

    Directory of Open Access Journals (Sweden)

    Jean-François Degbomont

    2010-10-01

    Full Text Available This paper addresses the symbolic representation of non-convex real polyhedra, i.e., sets of real vectors satisfying arbitrary Boolean combinations of linear constraints. We develop an original data structure for representing such sets, based on an implicit and concise encoding of a known structure, the Real Vector Automaton. The resulting formalism provides a canonical representation of polyhedra, is closed under Boolean operators, and admits an efficient decision procedure for testing the membership of a vector.

  8. La leyenda de Gösta Berling: una propuesta didáctica desde la interrelación Literatura/Cine / Gösta Berlings Saga: a teaching proposal from the interaction Literature / Cinema

    Directory of Open Access Journals (Sweden)

    Angélica García-Manso

    2017-09-01

    Full Text Available Resumen: El presente estudio tiene como objetivo trazar una estrategia didáctica para potenciar la lectura de los grandes clásicos de la Literatura Universal en el aula de enseñanza obligatoria. La propuesta se concretiza en la aproximación a la novelista sueca Selma Lagerlöff –la primera mujer Premio Nobel de Literatura– a través de la película La leyenda de Gösta Berling (Gösta Berlings Saga, 1924, dirigida por Mauritz Stiller y considerada una de las obras maestras del cine silente nórdico. Mediante esta guía de lectura-visionado, los alumnos pueden analizar un aspecto tan inédito como es el reflejo de la palabra en el cine mudo. Desde esta perspectiva, la relación interdisciplinar Literatura/Cine se percibe como una herramienta pedagógica polivalente, al menos en un doble sentido: por una parte, proporcionar a los adolescentes unos conocimientos literarios que el currículo no contempla; de otro, iniciarlos en la praxis de un análisis audiovisual cada vez más omnipresente y demandado. Abstract: The present study aims to draw a teaching strategy to enhance the reading of the great classics of World Literature in the classroom of compulsory education. Our specific proposal is the approach to the Swedish novelist Selma Lagerlöff – the first woman Nobel Prize for Literature– through the movie Gösta Berlings Saga (1924, directed by Mauritz Stiller and considered one of the masterpieces of Nordic silent film. By this reader-viewing guide, students can analyze an unknown aspect such as the reflection of the word in silent cinema. From this perspective, interdisciplinary relationship between Literature / Film is perceived as a versatile educational tool, at least in two ways: firstly, to provide adolescents with a literary knowledge that the curriculum does not provide; otherwise, to introduce them to the practice of an audiovisual analysis which is greater and greater.

  9. Vectorized Monte Carlo

    International Nuclear Information System (INIS)

    Brown, F.B.

    1981-01-01

    Examination of the global algorithms and local kernels of conventional general-purpose Monte Carlo codes shows that multigroup Monte Carlo methods have sufficient structure to permit efficient vectorization. A structured multigroup Monte Carlo algorithm for vector computers is developed in which many particle events are treated at once on a cell-by-cell basis. Vectorization of kernels for tracking and variance reduction is described, and a new method for discrete sampling is developed to facilitate the vectorization of collision analysis. To demonstrate the potential of the new method, a vectorized Monte Carlo code for multigroup radiation transport analysis was developed. This code incorporates many features of conventional general-purpose production codes, including general geometry, splitting and Russian roulette, survival biasing, variance estimation via batching, a number of cutoffs, and generalized tallies of collision, tracklength, and surface crossing estimators with response functions. Predictions of vectorized performance characteristics for the CYBER-205 were made using emulated coding and a dynamic model of vector instruction timing. Computation rates were examined for a variety of test problems to determine sensitivities to batch size and vector lengths. Significant speedups are predicted for even a few hundred particles per batch, and asymptotic speedups by about 40 over equivalent Amdahl 470V/8 scalar codes arepredicted for a few thousand particles per batch. The principal conclusion is that vectorization of a general-purpose multigroup Monte Carlo code is well worth the significant effort required for stylized coding and major algorithmic changes

  10. Vectors and their applications

    CERN Document Server

    Pettofrezzo, Anthony J

    2005-01-01

    Geared toward undergraduate students, this text illustrates the use of vectors as a mathematical tool in plane synthetic geometry, plane and spherical trigonometry, and analytic geometry of two- and three-dimensional space. Its rigorous development includes a complete treatment of the algebra of vectors in the first two chapters.Among the text's outstanding features are numbered definitions and theorems in the development of vector algebra, which appear in italics for easy reference. Most of the theorems include proofs, and coordinate position vectors receive an in-depth treatment. Key concept

  11. Symbolic computer vector analysis

    Science.gov (United States)

    Stoutemyer, D. R.

    1977-01-01

    A MACSYMA program is described which performs symbolic vector algebra and vector calculus. The program can combine and simplify symbolic expressions including dot products and cross products, together with the gradient, divergence, curl, and Laplacian operators. The distribution of these operators over sums or products is under user control, as are various other expansions, including expansion into components in any specific orthogonal coordinate system. There is also a capability for deriving the scalar or vector potential of a vector field. Examples include derivation of the partial differential equations describing fluid flow and magnetohydrodynamics, for 12 different classic orthogonal curvilinear coordinate systems.

  12. Manifold learning based ECG-free free-breathing cardiac CINE MRI.

    Science.gov (United States)

    Usman, Muhammad; Atkinson, David; Kolbitsch, Christoph; Schaeffter, Tobias; Prieto, Claudia

    2015-06-01

    To present and validate a manifold learning (ML)-based method that can estimate both cardiac and respiratory navigator signals from electrocardiogram (ECG)-free free-breathing cardiac magnetic resonance imaging (MRI) data to achieve self-gated retrospective CINE reconstruction. In this work the use of the ML method is demonstrated for 2D cardiac CINE to achieve both cardiac and respiratory self-gating without the need of an external navigator or ECG signal. This is achieved by sequentially applying ML to two sets of retrospectively reconstructed real-time images with differing temporal resolutions. A 1D cardiac signal is estimated by applying ML to high temporal resolution real-time images reconstructed from the acquired data. Using the estimated cardiac signal, a 1D respiratory signal was obtained by applying the ML method to low temporal resolution images reconstructed from the same acquired data for each cardiac cycle. Data were acquired in five volunteers with a 2D golden angle radial trajectory in a balanced steady-state free precession (b-SSFP) acquisition. The accuracy of the estimated cardiac signal was calculated as the standard deviation of the temporal difference between the estimated signal and the recorded ECG. The correlation between the estimated respiratory signal and standard pencil beam navigator signal was evaluated. Gated CINE reconstructions (20 cardiac phases per cycle, temporal resolution ∼30 msec) using the estimated cardiac and respiratory signals were qualitatively compared against conventional ECG-gated breath-hold CINE acquisitions. Accurate cardiac signals were estimated with the proposed method, with an error standard deviation in comparison to ECG lower than 20 msec. Respiratory signals estimated with the proposed method achieved a mean cross-correlation of 94% with respect to standard pencil beam navigator signals. Good quality visual scores of 2.80 ± 0.45 (scores from 0, bad, to 4, excellent quality) were observed for the

  13. Standardized cine-loop documentation in abdominal ultrasound facilitates offline image interpretation.

    Science.gov (United States)

    Dormagen, Johann Baptist; Gaarder, Mario; Drolsum, Anders

    2015-01-01

    One of the main disadvantages of conventional ultrasound is its operator dependency, which might impede the reproducibility of the sonographic findings. A new approach with cine-loops and standardized scan protocols can overcome this drawback. To compare abdominal ultrasound findings of immediate bedside reading by performing radiologist with offline reading by a non-performing radiologist, using standardized cine-loop sequences. Over a 6-month period, three radiologists performed 140 dynamic ultrasound organ-based examinations in 43 consecutive outpatients. Examination protocols were standardized and included predefined probe position and sequences of short cine-loops of the liver, gallbladder, pancreas, kidneys, and urine bladder, covering the organs completely in two planes. After bedside examinations, the studies were reviewed and read out immediately by the performing radiologist. Image quality was registered from 1 (no diagnostic value) to 5 (excellent cine-loop quality). Offline reading was performed blinded by a radiologist who had not performed the examination. Bedside and offline reading were compared with each other and with consensus results. In 140 examinations, consensus reading revealed 21 cases with renal disorders, 17 cases with liver and bile pathology, and four cases with bladder pathology. Overall inter-observer agreement was 0.73 (95% CI 0.61-0.91), with lowest agreement for findings of the urine bladder (0.36) and highest agreement in liver examinations (0.90). Disagreements between the two readings were seen in nine kidneys, three bladder examinations, one pancreas and bile system examinations each, and in one liver, giving a total number of mismatches of 11%. Nearly all cases of mismatch were of minor clinical significance. The median image quality was 3 (range, 2-5) with most examinations deemed a quality of 3. Compared to consensus reading, overall accuracy was 96% for bedside reading and 94% for offline reading. Standardized cine

  14. Validation of in vivo 2D displacements from spiral cine DENSE at 3T.

    Science.gov (United States)

    Wehner, Gregory J; Suever, Jonathan D; Haggerty, Christopher M; Jing, Linyuan; Powell, David K; Hamlet, Sean M; Grabau, Jonathan D; Mojsejenko, Walter Dimitri; Zhong, Xiaodong; Epstein, Frederick H; Fornwalt, Brandon K

    2015-01-30

    Displacement Encoding with Stimulated Echoes (DENSE) encodes displacement into the phase of the magnetic resonance signal. Due to the stimulated echo, the signal is inherently low and fades through the cardiac cycle. To compensate, a spiral acquisition has been used at 1.5T. This spiral sequence has not been validated at 3T, where the increased signal would be valuable, but field inhomogeneities may result in measurement errors. We hypothesized that spiral cine DENSE is valid at 3T and tested this hypothesis by measuring displacement errors at both 1.5T and 3T in vivo. Two-dimensional spiral cine DENSE and tagged imaging of the left ventricle were performed on ten healthy subjects at 3T and six healthy subjects at 1.5T. Intersection points were identified on tagged images near end-systole. Displacements from the DENSE images were used to project those points back to their origins. The deviation from a perfect grid was used as a measure of accuracy and quantified as root-mean-squared error. This measure was compared between 3T and 1.5T with the Wilcoxon rank sum test. Inter-observer variability of strains and torsion quantified by DENSE and agreement between DENSE and harmonic phase (HARP) were assessed by Bland-Altman analyses. The signal to noise ratio (SNR) at each cardiac phase was compared between 3T and 1.5T with the Wilcoxon rank sum test. The displacement accuracy of spiral cine DENSE was not different between 3T and 1.5T (1.2 ± 0.3 mm and 1.2 ± 0.4 mm, respectively). Both values were lower than the DENSE pixel spacing of 2.8 mm. There were no substantial differences in inter-observer variability of DENSE or agreement of DENSE and HARP between 3T and 1.5T. Relative to 1.5T, the SNR at 3T was greater by a factor of 1.4 ± 0.3. The spiral cine DENSE acquisition that has been used at 1.5T to measure cardiac displacements can be applied at 3T with equivalent accuracy. The inter-observer variability and agreement of DENSE-derived peak strains and

  15. Feasibility of free-breathing, GRAPPA-based, real-time cardiac cine assessment of left-ventricular function in cardiovascular patients at 3T.

    Science.gov (United States)

    Zhu, Xiaomei; Schwab, Felix; Marcus, Roy; Hetterich, Holger; Theisen, Daniel; Kramer, Harald; Notohamiprodjo, Mike; Schlett, Christopher L; Nikolaou, Konstantin; Reiser, Maximilian F; Bamberg, Fabian

    2015-05-01

    To determine the feasibility of free-breathing, GRAPPA-based, real-time (RT) cine 3T cardiac magnetic resonance imaging (MRI) with high acceleration factors for the assessment of left-ventricular function in a cohort of patients as compared to conventional segmented cine imaging. In this prospective cohort study, subjects with various cardiac conditions underwent MRI involving two RT cine sequences (high resolution and low resolution) and standard segmented cine imaging. Standard qualitative and quantitative parameters of left-ventricular function were quantified. Among 25 subjects, 24 were included in the analysis (mean age: 50.5±21 years, 67% male, 25% with cardiomyopathy). RT cine derived quantitative parameters of volumes and left ventricular mass were strongly correlated with segmented cine imaging (intraclass correlation coefficient [ICC]: >0.72 for both RT cines) but correlation for peak ejection and filling rates were moderate to poor for both RT cines (ICCcines significantly underestimated peak ejection and filling rates (>103.2±178 ml/s). Among patient-related factors, heart rate was strongly predictive for deviation of measurements (pcine MRI at 3T is feasible for qualitative and quantitative assessment of left ventricular function for low and high-resolution sequences but results in significant underestimation of systolic function, peak ejection and filling rates. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  16. Breve historia del cine en el África negra. Cuando el cinc era "africano", pero sólo de nombre.

    OpenAIRE

    Speciale, Alessandra

    1999-01-01

    Speciale, A. (1999). Breve historia del cine en el África negra. Cuando el cinc era "africano", pero sólo de nombre. Nosferatu. Revista de cine. (30):4-19. http://hdl.handle.net/10251/41132. 4 19 30

  17. Identifying decreased peristalsis of abnormal small bowel segments in Crohn's disease using cine MR enterography: the frozen bowel sign.

    Science.gov (United States)

    Guglielmo, Flavius F; Mitchell, Donald G; O'Kane, Patrick L; Deshmukh, Sandeep P; Roth, Christopher G; Burach, Ilene; Burns, Aaron; Dulka, Susan; Parker, Laurence

    2015-06-01

    The purpose of this study was to evaluate whether affected bowel in Crohn's disease patients can be identified by observing decreased peristalsis (frozen bowel sign) using cine balanced steady-state free precession (cine BSSFP) images. 5 radiologists independently reviewed cine BSSFP sequences from randomized MR Enterography (MRE) exams for 30 normal and 30 Crohn's disease patients, graded overall small bowel peristalsis from slowest to fastest, and graded peristalsis for the most abnormal small bowel segment. Sensitivity and specificity of the frozen bowel sign for diagnosing Crohn's disease were calculated. T tests of the peristalsis difference between abnormal segments and overall small bowel were conducted. For 5 readers, the sensitivity and specificity of cine BSSFP of the frozen bowel sign for diagnosing Crohn's disease ranged from 70% to 100% and 87% to 100%, respectively. There were significant differences in peristalsis between abnormal small bowel segments and the overall small bowel for Crohn's patients, but not in the overall small bowel between normal-MRE patients and Crohn's disease patients. Abnormal Crohn's small bowel segments have significantly decreased peristalsis compared to normal small bowel, which can be identified using cine BSSFP sequences as the frozen bowel sign.

  18. Noninvasive investigation of exocrine pancreatic function: Feasibility of cine dynamic MRCP with a spatially selective inversion-recovery pulse.

    Science.gov (United States)

    Yasokawa, Kazuya; Ito, Katsuyoshi; Tamada, Tsutomu; Yamamoto, Akira; Hayashida, Minoru; Tanimoto, Daigo; Higaki, Atsushi; Noda, Yasufumi; Kido, Ayumu

    2015-11-01

    To investigate the feasibility of noncontrast-enhanced cine dynamic magnetic resonance cholangiopancreatography (MRCP) with a spatially selective inversion-recovery (IR) pulse for evaluating exocrine pancreatic function in comparison with the N-benzoyl-L-tyrosyl-p-aminobenzoic acid (BT-PABA) test as a pancreatic exocrine function test. Twenty subjects with or without chronic pancreatitis were included. MRCP with a spatially selective IR pulse was repeated every 15 seconds for 5 minutes to acquire a total of 20 images (cine-dynamic MRCP). The median and mean frequency of the observation (the number of times) and the moving distance (mean secretion grading scores) of pancreatic juice inflow on cine-dynamic MRCP were compared with a BT-PABA test. The urinary PABA excretion rate (%) had significant positive correlations with both the mean secretion grade (r = 0.66, P = 0.002) and frequency of secretory inflow (r = 0.62, P = 0.004) in cine dynamic MRCP. Both the mean frequency of observations of pancreatic secretory inflow (1.4 ± 1.6 times vs. 14.3 ± 4.2 times, P Cine dynamic MRCP with a spatially selective IR pulse may have potential for estimating the pancreatic exocrine function noninvasively as a substitute for the BT-PABA test. © 2015 Wiley Periodicals, Inc.

  19. Functional MRI of the patellofemoral joint: comparison of ultrafast MRI, motion-triggered cine MRI and static MRI

    Energy Technology Data Exchange (ETDEWEB)

    Muhle, C. [Klinik fuer Radiologische Diagnostik, Univ. Kiel (Germany); Brossmann, J. [Klinik fuer Radiologische Diagnostik, Univ. Kiel (Germany); Melchert, U.H. [Klinik fuer Radiologische Diagnostik, Univ. Kiel (Germany); Schroeder, C. [Radiologische Abt., Universitaets-Kinderklinik, Christian-Albrechts-Universitaet, Kiel (Germany); Boer, R. de [Philips Medical Systems, Best (Netherlands); Spielmann, R.P. [Klinik fuer Radiologische Diagnostik, Univ. Kiel (Germany); Heller, M. [Klinik fuer Radiologische Diagnostik, Univ. Kiel (Germany)

    1995-12-31

    To evaluate the feasibility and usefulness of ultrafast MRI (u), patellar tracking from 30 of flexion to knee extension (0 ) was analysed and compared with motion-triggered cine MRI (m) and a static MRI technique (s). The different imaging methods were compared in respect of the patellofemoral relationship, the examination time and image quality. Eight healthy subjects and four patients (in total 18 joints) with patellar subluxation or luxation were examined. Significant differences between the static MRI series without quadriceps contraction and the functional MRI studies (motion-triggered cine MRI and ultrafast MRI) were found for the patellar tilt angle. In the dynamic joint studies there was no statistical difference of the regression coefficients between the motion-triggered cine MRI studies and the ultrafast MRI studies. The findings of the functional MRI studies compared with the static MRI images were significantly different for the lateralisation of the patella, expressed by the lateral patellar displacement and bisect offset. No significant differences in patellar lateralisation were found between motion-triggered cine MRI and ultrafast MRI. Ultrafast MRI was superior to motion-triggered cine MRI in terms of the reduction in imaging time and improvement of the image quality. (orig.)

  20. Functional MRI of the patellofemoral joint: comparison of ultrafast MRI, motion-triggered cine MRI and static MRI

    International Nuclear Information System (INIS)

    Muhle, C.; Brossmann, J.; Melchert, U.H.; Schroeder, C.; Boer, R. de; Spielmann, R.P.; Heller, M.

    1995-01-01

    To evaluate the feasibility and usefulness of ultrafast MRI (u), patellar tracking from 30 of flexion to knee extension (0 ) was analysed and compared with motion-triggered cine MRI (m) and a static MRI technique (s). The different imaging methods were compared in respect of the patellofemoral relationship, the examination time and image quality. Eight healthy subjects and four patients (in total 18 joints) with patellar subluxation or luxation were examined. Significant differences between the static MRI series without quadriceps contraction and the functional MRI studies (motion-triggered cine MRI and ultrafast MRI) were found for the patellar tilt angle. In the dynamic joint studies there was no statistical difference of the regression coefficients between the motion-triggered cine MRI studies and the ultrafast MRI studies. The findings of the functional MRI studies compared with the static MRI images were significantly different for the lateralisation of the patella, expressed by the lateral patellar displacement and bisect offset. No significant differences in patellar lateralisation were found between motion-triggered cine MRI and ultrafast MRI. Ultrafast MRI was superior to motion-triggered cine MRI in terms of the reduction in imaging time and improvement of the image quality. (orig.)

  1. Ouabaina como Hormona

    OpenAIRE

    J. Hernando Ordoñez

    1996-01-01

    Comentario sobre su origen endógeno y sus aplicaciones terapéuticas

    Pocas drogas han sido más estudiadas que el grupo de los digitálicos, estrofantinas y ouabaina, cuyo estudio es objeto del presente trabajo.

    La ouabaina empezó a ser estudiada desde el siglo pasado. La primera referencia conocida corresponde a Pelikan, 1865 (1), como veneno que empleaban para las flechas en Gabón (Africa). (.)

  2. Hoy como ayer

    Directory of Open Access Journals (Sweden)

    Rodríguez M.

    2010-06-01

    Full Text Available Leyendo el artículo titulado “Los medicamentos baratos” de la revista La Farmacia Española, publicada en Madrid el jueves 21 de diciembre de 1893, uno se pregunta cómo puede ser que se reconozca la situación como si fuera de ahora mismo, cómo puede ser que estemos igual que hace más de cien años. Entonces eran los descuentos que se empezaban a extender en las farmacias, francesas sobre todo, y que amenazaban el prestigio profesional de todo el colectivo. Con frases como éstas se define la situación que se presentaba en aquel momento: “…el desprestigio de que vaya por unos cuantos desnaturalizándose el ejercicio de la farmacia en tal forma que se convierta en un comercio impuro y de la peor estofa; pero conviene mucho combatir con mano firme la tendencia a la baratería, tanto más cuanto que no puede dudarse que significa un rebajamiento a todas luces nocivo y que supone una desorganización que nos llevaría en breve a la más completa ruina, y lo que creo aún más grave, a la desmoralización y el desorden, que no se compadecen en modo alguno con lo que en realidad es hoy y ha sido siempre el ejercicio de una profesión genuinamente científica como lo es la de la farmacia”. La propuesta que se hacía para controlar la situación era “la limitación de farmacias, con vigilancia estrecha del Estado y tarifa uniforme oficial”, así como “hace falta mucha inteligencia y mucha unión, hace falta que nadie permanezca indiferente, que todos y cada uno pongan de su parte lo que puedan”. Nuestra profesión mezcla una doble vertiente sanitaria y comercial que no siempre es fácil mantener equilibrada y, por lo que se ve, esto ha ocurrido así desde siempre. El problema que existe hoy en día es la mercantilización de la farmacia, un desplazamiento de establecimiento sanitario hacia una simple empresa.

  3. Vector-Vector Scattering on the Lattice

    Science.gov (United States)

    Romero-López, Fernando; Urbach, Carsten; Rusetsky, Akaki

    2018-03-01

    In this work we present an extension of the LüScher formalism to include the interaction of particles with spin, focusing on the scattering of two vector particles. The derived formalism will be applied to Scalar QED in the Higgs Phase, where the U(1) gauge boson acquires mass.

  4. Selection vector filter framework

    Science.gov (United States)

    Lukac, Rastislav; Plataniotis, Konstantinos N.; Smolka, Bogdan; Venetsanopoulos, Anastasios N.

    2003-10-01

    We provide a unified framework of nonlinear vector techniques outputting the lowest ranked vector. The proposed framework constitutes a generalized filter class for multichannel signal processing. A new class of nonlinear selection filters are based on the robust order-statistic theory and the minimization of the weighted distance function to other input samples. The proposed method can be designed to perform a variety of filtering operations including previously developed filtering techniques such as vector median, basic vector directional filter, directional distance filter, weighted vector median filters and weighted directional filters. A wide range of filtering operations is guaranteed by the filter structure with two independent weight vectors for angular and distance domains of the vector space. In order to adapt the filter parameters to varying signal and noise statistics, we provide also the generalized optimization algorithms taking the advantage of the weighted median filters and the relationship between standard median filter and vector median filter. Thus, we can deal with both statistical and deterministic aspects of the filter design process. It will be shown that the proposed method holds the required properties such as the capability of modelling the underlying system in the application at hand, the robustness with respect to errors in the model of underlying system, the availability of the training procedure and finally, the simplicity of filter representation, analysis, design and implementation. Simulation studies also indicate that the new filters are computationally attractive and have excellent performance in environments corrupted by bit errors and impulsive noise.

  5. Brane vector phenomenology

    International Nuclear Information System (INIS)

    Clark, T.E.; Love, S.T.; Nitta, Muneto; Veldhuis, T. ter; Xiong, C.

    2009-01-01

    Local oscillations of the brane world are manifested as massive vector fields. Their coupling to the Standard Model can be obtained using the method of nonlinear realizations of the spontaneously broken higher-dimensional space-time symmetries, and to an extent, are model independent. Phenomenological limits on these vector field parameters are obtained using LEP collider data and dark matter constraints

  6. Complex Polynomial Vector Fields

    DEFF Research Database (Denmark)

    The two branches of dynamical systems, continuous and discrete, correspond to the study of differential equations (vector fields) and iteration of mappings respectively. In holomorphic dynamics, the systems studied are restricted to those described by holomorphic (complex analytic) functions...... or meromorphic (allowing poles as singularities) functions. There already exists a well-developed theory for iterative holomorphic dynamical systems, and successful relations found between iteration theory and flows of vector fields have been one of the main motivations for the recent interest in holomorphic...... vector fields. Since the class of complex polynomial vector fields in the plane is natural to consider, it is remarkable that its study has only begun very recently. There are numerous fundamental questions that are still open, both in the general classification of these vector fields, the decomposition...

  7. Complex Polynomial Vector Fields

    DEFF Research Database (Denmark)

    Dias, Kealey

    vector fields. Since the class of complex polynomial vector fields in the plane is natural to consider, it is remarkable that its study has only begun very recently. There are numerous fundamental questions that are still open, both in the general classification of these vector fields, the decomposition...... of parameter spaces into structurally stable domains, and a description of the bifurcations. For this reason, the talk will focus on these questions for complex polynomial vector fields.......The two branches of dynamical systems, continuous and discrete, correspond to the study of differential equations (vector fields) and iteration of mappings respectively. In holomorphic dynamics, the systems studied are restricted to those described by holomorphic (complex analytic) functions...

  8. Del bronce al celuloide. Hagiografía de los próceres independentistas mexicanos: el caso de Miguel Hidalgo en el cine de ficción

    Directory of Open Access Journals (Sweden)

    Manuel Jesús González

    2014-01-01

    Full Text Available En este artículo se hace un análisis de la forma de representación del prócer mexicano Miguel Hidalgo. Se inicia con su aparición en pinturas y estampas para fijar su iconografía y a partir de aquí analizar más pormenorizadamente las películas que le han representado. Se explora la figura de Hidalgo en los diferentes momentos de la historia del cine mexicano para de este modo observar los cambios que se han producido en su representación, así como las diferencias entre producto privado y público y su continuidad en determinadas ideologías políticas y grupos de poder y económicos.

  9. O ensaio como narrativa

    Directory of Open Access Journals (Sweden)

    Pedro Duarte

    2016-02-01

    Full Text Available O artigo tenta demonstrar que todos os textos, mesmo aqueles cuja natureza é teórica, têm alguma forma de narrativa. Nem sempre são personagens que os ocupam, podem ser ideias, mas mesmo assim há um enredo conceitual que se passa. Modernamente, a forma dessa narrativa foi sobretudo o sistema, com a pretensão totalizadora presente, por exemplo, na filosofia de Hegel. Contemporaneamente, porém, a forma do ensaio – surgida ainda na era moderna – ganha destaque por sua forma descontínua de narrar. O objetivo do artigo é apontar que, se o ensaio é uma forma, como explicitaram Lukács, Benjamin e Adorno, ele é também uma forma de narrar – ainda que de narrar conceitualmente objetos da cultura.

  10. La Justicia como virtud

    Directory of Open Access Journals (Sweden)

    Martínez-Sicluna y Sepúlveda, Consuelo

    2003-07-01

    Full Text Available El sentimiento de la justicia representa el hábito de conducta por el que nos vemos obligados, en cualquier relación, a dar a cada uno lo suyo. Ahora bien, esta disposición del espíritu se inscribe en las coordenadas que definen al hombre: verdad, libertad y bien. El hombre como ser racional y por tanto libre: el único ser que se determina a sí mismo y que alcanza en el bien el sentido de su proyección personal, esto es, la perfección. Dar a cada uno lo suyo es dar al sujeto el reconocimiento de este fundamento ontológico.

  11. Como comunicar la Alegria

    Directory of Open Access Journals (Sweden)

    Pablo Portales

    2015-01-01

    Full Text Available Se ofrece un amplio análisis sobre la industria electoral, recordando que un candidato a presidente es "un producto para la venta". Se Desmenuzan las estrategias utilizadas en el plebiscito chileno,las elecciones norteamericanas con el NO a BUSH. El Mercadeo Social es una nueva metodología utilizada en proyectos de desarrollo a nivel de campo por ello se hace un esclarecimiento y clarifica el vínculo con la comunicación. Se agrega temas como: Los modelos de recepción de mensajes cuyos marcos conceptuales y metodologías aún no se han adaptado al potencial de esta línea de trabajo.Se analiza la agonía de las radios mineras en Bolivia en la que 42 años de historia y heroísmo se desmoronan.

  12. El inquisidor como profesor

    Directory of Open Access Journals (Sweden)

    Adriano PROSPERI

    2009-12-01

    Full Text Available Giovanni Botero, en una célebre página de su Ragion di stato, se detuvo sobre el tema de la fuerza de la religión en los gobiernos. Esta función de la religión cristiana —para Botero, católica— es garante del orden público y se presenta también como opuesta a la generadora de desorden de Lutero y Calvino, quienes siembran por todo cizañas y revoluciones de estados y ruinas de los reinos. Estamos en los orígenes del esquema historiografía de la periodización de la Edad Moderna que confió precisamente a la Reforma el papel de nodriza de las revoluciones que nacieron en Europa.

  13. La investigación como proceso creativo en la arquitectura

    Directory of Open Access Journals (Sweden)

    Jaime Sarmiento Ocampo

    2016-12-01

    Full Text Available Este artículo aborda las dicotomías presentes durante el proceso de investigación en arquitectura, que se van resolviendo en un devenir dialéctico. Uno de los conflictos es el de la dependencia inicial y la superación posterior con respecto al pasado. Otro es el de concretar el objeto de estudio mediante la identificación de pequeños eventos. La apariencia y el trasfondo, la materia y las ideas, son territorios contrapuestos, dos niveles de aproximación al tema de estudio por los que el investigador deberá ir desplazándose. Para evidenciarlo, el texto se apoya en algunas analogías provenientes de otros territorios creativos como pueden ser el de la pintura, la literatura o el cine.

  14. Cine MR enterography grading of small bowel peristalsis: evaluation of the antiperistaltic effectiveness of sublingual hyoscyamine sulfate.

    Science.gov (United States)

    Ghobrial, Peter M; Neuberger, Ilana; Guglielmo, Flavius F; Mitchell, Donald G; Parker, Laurence; O'Kane, Patrick L; Roth, Christopher G; Deshmukh, Sandeep P; Borowski, Allison

    2014-01-01

    To use a cine balanced steady-state free precession magnetic resonance enterography (cine MRE) pulse sequence to assess the effectiveness of a sublingual (SL) antiperistaltic agent, hyoscyamine sulfate. Institutional review board approval was granted with an exemption for informed consent in this Health Insurance Portability and Accountability Act-compliant, retrospective, single-institution study. Of the 288 MRE examinations performed between October 1, 2007 and January 15, 2011, 92 using SL hyoscyamine sulfate for antiperistalsis were included for review, each with cine MRE before and after medication. These 184 cine MRE data sets were randomized, blinded for treatment, and independently reviewed by five attending abdominal radiologists, who rated the degree of whole abdomen bowel motility on each cine MRE data set on a 5-point scale. Pre- and postmedication mean peristalsis ratings, standard deviation, mean difference, and treatment effect sizes were calculated. A repeated measures analysis of variance test was performed using a significance threshold of P = .05. Interobserver reliabilities were also calculated. Mean peristalsis ratings ranged 2.63-3.34 and 2.36-3.03, before and after medication administration, respectively. The mean differences ranged from 0.22 to 0.46, which are treatment effect sizes of 0.20 to 0.37. The decrease in peristalsis observed by the five reviewing radiologists after SL hyoscyamine sulfate administration was significant (df = 1/182, f = 7.35, P cine MRE sequences show decreased bowel peristalsis after the use of SL hyoscyamine sulfate, the small size of the observed treatment effect is likely insufficient to justify its use for MRE. Copyright © 2014 AUR. Published by Elsevier Inc. All rights reserved.

  15. Direct comparison of high‐temporal‐resolution CINE MRI with Doppler ultrasound for assessment of diastolic dysfunction in mice

    Science.gov (United States)

    Price, Anthony N.; Jackson, Laurence H.; Taylor, Valerie; David, Anna L.; Lythgoe, Mark F.; Stuckey, Daniel J.

    2017-01-01

    Diastolic dysfunction is a sensitive early indicator of heart failure and can provide additional data to conventional measures of systolic function. Transmitral Doppler ultrasound, which measures the one‐dimensional flow of blood through the mitral valve, is currently the preferred method for the measurement of diastolic function, but the measurement of the left ventricular volume changes using high‐temporal‐resolution cinematic magnetic resonance imaging (CINE MRI) is an alternative approach which is emerging as a potentially more robust and user‐independent technique. Here, we investigated the performance of high‐temporal‐resolution CINE MRI and compared it with ultrasound for the detection of diastolic dysfunction in a mouse model of myocardial infarction. An in‐house, high‐temporal‐resolution, retrospectively gated CINE sequence was developed with a temporal resolution of 1 ms. Diastolic function in mice was assessed using a custom‐made, open‐source reconstruction package. Early (E) and late (A) left ventricular filling phases were easily identifiable, and these measurements were compared directly with high‐frequency, pulsed‐wave, Doppler ultrasound measurements of mitral valve inflow. A repeatability study established that high‐temporal‐resolution CINE MRI and Doppler ultrasound showed comparable accuracy when measuring E/A in normal control mice. However, when applied in a mouse model of myocardial infarction, high‐temporal‐resolution CINE MRI indicated diastolic heart failure (E/A = 0.94 ± 0.11), whereas ultrasound falsely detected normal cardiac function (E/A = 1.21 ± 0.11). The addition of high‐temporal‐resolution CINE MRI to preclinical imaging studies enhances the library of sequences available to cardiac researchers and potentially identifies diastolic heart failure early in disease progression. PMID:28643891

  16. Direct comparison of high-temporal-resolution CINE MRI with Doppler ultrasound for assessment of diastolic dysfunction in mice.

    Science.gov (United States)

    Roberts, Thomas A; Price, Anthony N; Jackson, Laurence H; Taylor, Valerie; David, Anna L; Lythgoe, Mark F; Stuckey, Daniel J

    2017-10-01

    Diastolic dysfunction is a sensitive early indicator of heart failure and can provide additional data to conventional measures of systolic function. Transmitral Doppler ultrasound, which measures the one-dimensional flow of blood through the mitral valve, is currently the preferred method for the measurement of diastolic function, but the measurement of the left ventricular volume changes using high-temporal-resolution cinematic magnetic resonance imaging (CINE MRI) is an alternative approach which is emerging as a potentially more robust and user-independent technique. Here, we investigated the performance of high-temporal-resolution CINE MRI and compared it with ultrasound for the detection of diastolic dysfunction in a mouse model of myocardial infarction. An in-house, high-temporal-resolution, retrospectively gated CINE sequence was developed with a temporal resolution of 1 ms. Diastolic function in mice was assessed using a custom-made, open-source reconstruction package. Early (E) and late (A) left ventricular filling phases were easily identifiable, and these measurements were compared directly with high-frequency, pulsed-wave, Doppler ultrasound measurements of mitral valve inflow. A repeatability study established that high-temporal-resolution CINE MRI and Doppler ultrasound showed comparable accuracy when measuring E/A in normal control mice. However, when applied in a mouse model of myocardial infarction, high-temporal-resolution CINE MRI indicated diastolic heart failure (E/A = 0.94 ± 0.11), whereas ultrasound falsely detected normal cardiac function (E/A = 1.21 ± 0.11). The addition of high-temporal-resolution CINE MRI to preclinical imaging studies enhances the library of sequences available to cardiac researchers and potentially identifies diastolic heart failure early in disease progression. © 2017 The Authors. NMR in Biomedicine published by John Wiley & Sons Ltd.

  17. Comparative assessment of liver tumor motion using cine-magnetic resonance imaging versus 4-dimensional computed tomography.

    Science.gov (United States)

    Fernandes, Annemarie T; Apisarnthanarax, Smith; Yin, Lingshu; Zou, Wei; Rosen, Mark; Plastaras, John P; Ben-Josef, Edgar; Metz, James M; Teo, Boon-Keng

    2015-04-01

    To compare the extent of tumor motion between 4-dimensional CT (4DCT) and cine-MRI in patients with hepatic tumors treated with radiation therapy. Patients with liver tumors who underwent 4DCT and 2-dimensional biplanar cine-MRI scans during simulation were retrospectively reviewed to determine the extent of target motion in the superior-inferior, anterior-posterior, and lateral directions. Cine-MRI was performed over 5 minutes. Tumor motion from MRI was determined by tracking the centroid of the gross tumor volume using deformable image registration. Motion estimates from 4DCT were performed by evaluation of the fiducial, residual contrast (or liver contour) positions in each CT phase. Sixteen patients with hepatocellular carcinoma (n=11), cholangiocarcinoma (n=3), and liver metastasis (n=2) were reviewed. Cine-MRI motion was larger than 4DCT for the superior-inferior direction in 50% of patients by a median of 3.0 mm (range, 1.5-7 mm), the anterior-posterior direction in 44% of patients by a median of 2.5 mm (range, 1-5.5 mm), and laterally in 63% of patients by a median of 1.1 mm (range, 0.2-4.5 mm). Cine-MRI frequently detects larger differences in hepatic intrafraction tumor motion when compared with 4DCT most notably in the superior-inferior direction, and may be useful when assessing the need for or treating without respiratory management, particularly in patients with unreliable 4DCT imaging. Margins wider than the internal target volume as defined by 4DCT were required to encompass nearly all the motion detected by cine-MRI for some of the patients in this study. Copyright © 2015 Elsevier Inc. All rights reserved.

  18. Accelerated three-dimensional cine phase contrast imaging using randomly undersampled echo planar imaging with compressed sensing reconstruction.

    Science.gov (United States)

    Basha, Tamer A; Akçakaya, Mehmet; Goddu, Beth; Berg, Sophie; Nezafat, Reza

    2015-01-01

    The aim of this study was to implement and evaluate an accelerated three-dimensional (3D) cine phase contrast MRI sequence by combining a randomly sampled 3D k-space acquisition sequence with an echo planar imaging (EPI) readout. An accelerated 3D cine phase contrast MRI sequence was implemented by combining EPI readout with randomly undersampled 3D k-space data suitable for compressed sensing (CS) reconstruction. The undersampled data were then reconstructed using low-dimensional structural self-learning and thresholding (LOST). 3D phase contrast MRI was acquired in 11 healthy adults using an overall acceleration of 7 (EPI factor of 3 and CS rate of 3). For comparison, a single two-dimensional (2D) cine phase contrast scan was also performed with sensitivity encoding (SENSE) rate 2 and approximately at the level of the pulmonary artery bifurcation. The stroke volume and mean velocity in both the ascending and descending aorta were measured and compared between two sequences using Bland-Altman plots. An average scan time of 3 min and 30 s, corresponding to an acceleration rate of 7, was achieved for 3D cine phase contrast scan with one direction flow encoding, voxel size of 2 × 2 × 3 mm(3) , foot-head coverage of 6 cm and temporal resolution of 30 ms. The mean velocity and stroke volume in both the ascending and descending aorta were statistically equivalent between the proposed 3D sequence and the standard 2D cine phase contrast sequence. The combination of EPI with a randomly undersampled 3D k-space sampling sequence using LOST reconstruction allows a seven-fold reduction in scan time of 3D cine phase contrast MRI without compromising blood flow quantification. Copyright © 2014 John Wiley & Sons, Ltd.

  19. Fractal vector optical fields.

    Science.gov (United States)

    Pan, Yue; Gao, Xu-Zhen; Cai, Meng-Qiang; Zhang, Guan-Lin; Li, Yongnan; Tu, Chenghou; Wang, Hui-Tian

    2016-07-15

    We introduce the concept of a fractal, which provides an alternative approach for flexibly engineering the optical fields and their focal fields. We propose, design, and create a new family of optical fields-fractal vector optical fields, which build a bridge between the fractal and vector optical fields. The fractal vector optical fields have polarization states exhibiting fractal geometry, and may also involve the phase and/or amplitude simultaneously. The results reveal that the focal fields exhibit self-similarity, and the hierarchy of the fractal has the "weeding" role. The fractal can be used to engineer the focal field.

  20. EDUCACIÓN EN VALORES A TRAVÉS DEL CINE (Un Método para estudiantes de Secundaria Obligatoria)

    OpenAIRE

    José Bonilla Borrego; Felicidad Loscertales Abril; María de las Mercedes Páez Morales

    2012-01-01

    Los valores son la antesala de la conducta y guía que orienta la vida de las personas. Para los centros educativos y su alumnado es necesaria una "educación en valores positivos" que propicie un desarrollo armónico de la personalidad y una vida plena y gratificante. Muchas películas, usando imagen y lenguaje, muestran esos valores. Elegimos el cine por su potencial motivador y transmisor de esos valores positivos e imprescindibles. Ofrecemos un Método de Educación en Valores a través del Cine...