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Sample records for visiones del regionalismo

  1. Regionalismo

    Directory of Open Access Journals (Sweden)

    Raphael Carvalho de Vasconcelos

    2013-03-01

    Full Text Available A través de la perspectiva mercantil, los acuerdos regionales pueden facilitar la liberalización y el aumento de los flujos comerciales, pero si estos son incompatibles con el orden multilateral, ponen en riesgo la coherencia del derecho internacional. Este trabajo busca sistematizar el regionalismo económico en la doctrina, investigar los conceptos de integración y cooperación y establecer las actuales perspectivas de las iniciativas comerciales de aproximación. ¿Sería posible sistematizar el fenómeno que se conoce por regionalismo? El aspecto terminológico recibe una especial atención por no existir un consenso acerca del contenido de los conceptos adoptados. El punto de vista de las fases evolutivas de la integración económica tiene también importante rol en la investigación del localismo en el derecho mercantil internacional.

  2. Análisis del sistema-mundo, planificación regional y doble movimiento en el regionalismo

    OpenAIRE

    Narea, Marco

    2017-01-01

    Rifacendosi alla tradizione di studiosi come Giovanni Arrighi e Immanuel Wallerstein da un lato, e Karl Polanyi e Björn Hettne dall’altro, che hanno un approccio critico all’economia politica internazionale, l'Autore cerca di rispondere alla domanda: In quale contesto mondiale si inseriscono gli studi contemporanei sul regionalismo? Considera centrali gli scenari di caos sistemico e ordine post-westfaliano perché forniscono un quadro storico generale nell’analisi del (dis)ordine mondiale attu...

  3. la originalidad del regionalismo castellano y leonés en 1931 y 1932. ¿Un proyecto genuino o la necesidad de asumir un mal menor?

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    Luis Felipe PALACIOS

    2016-05-01

    Full Text Available Entre 1931 y 1932, como ocurrió en otras regiones españolas, Castilla y León asistió al resurgir de un regionalismo que hasta la fecha apenas había dado síntomas de vitalidad. A partir de esta realidad la pregunta que surge es si la renovada actividad regionalista castellano y leonesa reflejaba la actualización de un sentir originario y bien arraigado o era una respuesta obligada por el avance que estaba logrando el catalanismo durante el período considerado y por el nuevo modelo de organización territorial del Estado que definió la nueva Constitución de 1931. A la vista del comportamiento y manifestaciones de las fuerzas políticas, sociales e institucionales castellano y leonesas, podemos concluir que el regionalismo castellano y leonés no respondió a un sentimiento genuino y propio sino que fue la consecuencia de la necesidad de asumir un mal menor, de la adaptación a un nuevo modelo territorial no deseado.

  4. ENERGÍA DE BAJA INTENSIDAD: gobiernos, mercados e instituciones en el regionalismo energético de América del Sur

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    Stefano Palestini

    Full Text Available A pesar de haber sido considerada un área prioritaria de cooperación, el regionalismo energético sudamericano muestra signos de estancamiento, evidenciados por las infructuosas negociaciones de un Tratado Energético Sudamericano. Este artículo explica la paradoja de por qué, no obstante la voluntad política, las favorables condiciones estructurales para la integración, y la creación de instituciones regionales ad hoc, el regionalismo energético no consiguió pasar de las declaraciones intergubernamentales a la implementación de políticas. Se argumenta que ninguna de las instituciones creadas ha sido capaz de mediar la divergencia entre mercados y entre preferencias gubernamentales. Se requiere por tanto de un nuevo consenso que replantee la necesidad y la capacidad de la región para llevar adelante la agenda de integración energética. A un nivel más general, el caso del sector energético brinda lecciones importantes acerca de los desafíos futuros que enfrenta la cooperación regional en materia de políticas públicas en Sudamérica.

  5. América Latina a inicios de la segunda década del siglo XXI: entre el regionalismo estratégico y la regionalización fragmentada

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    Lincoln Bizzozero

    2011-01-01

    Full Text Available El artículo analiza la evolución del regionalismo en América Latina desde los años noventa. Expone las opciones que se plantean a los países en sus políticas exteriores frente a las iniciativas de Estados Unidos y los cambios en el sistema internacional. Se expone la importancia funcional de las potencias emergentes (PEMS y las regiones en la fase actual del capitalismo. Finalmente el artículo analiza las perspectivas del regionalismo en América Latina tanto en el sistema internacional como en la construcción de un modelo de gobernanza regional.

  6. Construcción participativa del regionalismo estratégico: ¿hacia una agenda medioambiental externa del Mercosur?

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    Amalia Stuhldreher

    2012-01-01

    Full Text Available El artículo analiza la búsqueda de posiciones comunes del Mercosur Ambiental, teniendo en cuenta la evolución del proceso regional. Desde el constructivismo social se pretende identificar las contribuciones de las comunidades epistémicas y de la sociedad civil para definir una agenda ambiental para Brasil y Argentina, y se describen algunas perspectivas.

  7. James Stirling Regionalismo y modernidad

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    Javier de Esteban Garbayo

    2015-05-01

    Full Text Available ResumenEn los años treinta, la arquitectura moderna se había introducido en los más remotos lugares del mundo enfrentándose con la infinita idiosincrasia de lo local, y al mismo tiempo, el arquitecto, sintiendo las limitaciones de su estilo e intentando ampliar su vocabulario, se embarcó en un proceso de difusión, asimilación y personalización.La idea de una renovada época después de la posguerra británica, sería compartida por una joven generación de arquitectos con el fin de encontrar una nueva forma de modernidad.Si en sus proyectos domésticos de mediados de los cincuenta, James Stirling partió de una aproximación al regionalismo y a la 'tradición funcional' con el fin de renovar el lenguaje moderno, no abandonaría la idea 'programática' inicial de entender la arquitectura desde una consistencia formal y una lógica que combinaba 'una síntesis común del pasado reciente y una certera actitud hacia el futuro'. AbstractThirties, modern architecture had percolated into remote corners of the world, encountering the infinite idiosyncrasies of locality, and, at the same time, Architects, feelings the limitations of their style and becoming intent upon extending their vocabulary, embarked upon a process of diffusion, assimilation and personalitation.The idea of a renewed period after British postwar, was shared for a new young architects generationto find a new way of modernity.While in his mid fifties housing projects, James Stirling approached to 'regionalism' and 'the functional tradition' to renew the modern language, he wouldn't reject the programmatic idea to understand architecture from a logic and formal consistency that combine 'a common synthesis of the recent past and a certain attitude toward the future'.

  8. Cooperación Sur – Sur: Regionalismos e integración en América Latina. Bruno Ayllon; Tahina Ojeda; Javier Surasky

    OpenAIRE

    Solano-Mercado, Ixhel; Benemérita Universidad Autónoma de Puebla (BUAP), México.

    2015-01-01

    Review of the book "Cooperación Sur – Sur: Regionalismos e integración en América Latina" by Bruno Ayllon; Tahina Ojeda; Javier Surasky Reseña del libro "Cooperación Sur – Sur: Regionalismos e integración en América Latina" escrito por Bruno Ayllon; Tahina Ojeda; Javier Surasky.

  9. Nuevas visiones del arte outsider

    National Research Council Canada - National Science Library

    Ortega, Ines

    2014-01-01

    ..., constituye un movimiento mucho mas amplio. Hoy en dia es facil apreciar un claro afan por difundir las expresiones artisticas marginales, las cuales, poco a poco, parecen estar saliendo del restringido ambito de los centros y museos...

  10. Explorando las limitaciones del nuevo regionalismo en las políticas de la Unión Europea: Una perspectiva latinoamericana

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    Víctor Ramiro Fernández

    2007-05-01

    Full Text Available Desde una mirada latinoamericana -donde la Unión Europea (UE es tomada como referencia de integración transnacional- se remarca inicialmente la incapacidad de revertir las asimetrías regionales y construir una Europa para todas las regiones mostrada por las agendas neoliberal y neorregionalista dominantes en la construcción institucional de la UE. Para explicar ello, se destacan las limitaciones de la perspectiva regionalista que nutrió las instituciones y políticas territoriales en la UE, fundadas centralmente en la asunción de las regiones/localidades como containers autorreproductivos, que trabajan en una relación local global unidireccional y en la desconsideración de las dinámicas asimétricas promovidas desde las estrategias neoliberales en los niveles supranacionales y nacionales. Procurando superar esas limitaciones y formular una estrategia de desarrollo regional alternativa, destacamos la necesidad de insertar a las regiones en una relación macro-meso más realista e integradora, en la que se computa el papel del Estado nacional y las trayectorias/modelos nacionalesFrom a Latin American’s viewpoint -where the European Union (EU is a reference point as a transnational integration- it is remarked at first the incapacity to revert regional asymmetries so as to build a Europe for all the regions as shown by dominant neoliberal and neoregionalist agendas involved in the EU’s institutional building up. To explain that, we highlight the limitations of the regionalist perspective that had nurtured the EU’s institutions and territorial policies that were both centrally founded in the belief that regions/localities were self-reproductive containers working in an unidirectional global local relationship, and in the inconsideration of asymmetric dynamics promoted from the neoliberal strategies at a national and supranational level. Trying to overcome those limitations and to formulate a strategy of alternate regional development

  11. La Unión Europea y el regionalismo latinoamericano: un balance

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    José Antonio Sanahuja

    2013-01-01

    Full Text Available El apoyo a la integración y el regionalismo es uno de los rasgos distintivos del diálogo político y cooperación entre la UE y América Latina y el Caribe. Este artículo examina la racionalidad, objetivos e instrumentos de apoyo de la UE al regionalismo y la integración latinoamericana y, en particular, los incentivos generados por los Acuerdos de Asociación y el papel de la cooperación regional y subregional. Aunque han sido instrumentos efectivos, la falta de cohesión interna de los grupos regionales de América Latina y los problemas de coherencia de políticas de la UE han limitado su impacto y efectividad. A partir de las enseñanzas extraidas de esa experiencia, se propone una estrategia ampliada de apoyo para el nuevo ciclo de programación de la cooperación de la UE del periodo 2014-2020.

  12. LA UNIÓN EUROPEA Y EL REGIONALISMO LATINOAMERICANO: UN BALANCE

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    José Antonio Sanahuja

    2013-01-01

    Full Text Available El apoyo a la integración y el regionalismo es uno de los rasgos distintivos del diálogo político y cooperación entre la UE y América Latina y el Caribe. Este artículo examina la racionalidad, objetivos e instrumentos de apoyo de la UE al regionalismo y la integración latinoamericana y, en particular, los incentivos generados por los Acuerdos de Asociación y el papel de la cooperación regional y subregional. Aunque han sido instrumentos efectivos, la falta de cohesión interna de los grupos regionales de América Latina y los problemas de coherencia de políticas de la UE han limitado su impacto y efectividad. A partir de las enseñanzas extraidas de esa experiencia, se propone una estrategia ampliada de apoyo para el nuevo ciclo de programación de la cooperación de la UE del periodo 2014-2020.

  13. Dos visiones del 98: 1948/1998

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    García-Velasco, José

    1998-06-01

    Full Text Available Not available.Este artículo tiene un triple objeto: 1. Analizar, desde la perspectiva de la historia intelectual, el número extraordinario de Arbor (núm. 36, diciembre 1948 conmemorativo del cincuenta aniversario de 1898. 2. Valorar los cambios que se han producido, cincuenta años después, en nuestra perspectiva y conocimiento del «espíritu del 98». 3. Proponer algunas tareas prioritarias para la historia intelectual del periodo, a partir de la experiencia del trabajo realizado estos últimos años en la Residencia de Estudiantes. El número 36 de Arbor reunió a un grupo de escritores bajo el liderazgo de Pedro Laín Entralgo: M. Fernández Almagro (historia, J. M.ª García Escudero (íd., Gerardo Diego (poesía, Lafuente Ferrari (pintura, F. Sopeña (música, G. Bleiberg (revistas literarias, A. Gallego Morell (Ganivet, J. L. López Aranguren (Unamuno, G. Torrente Ballester (Hispanoamérica, H. Juretschke (crítica, J. L. Pinillos (bibliografía de Unamuno, J. M.ª Valverde (bibliografía de A. Machado, etc. En los apartados 2 y 3 del artículo se insiste especialmente en la necesidad de recurrir a las fuentes primarias y estudiar los fenómenos culturales en su contexto europeo. Se abordan los problemas existentes y las propuestas de trabajo en relación con las colecciones documentales, los planes de obras completas, las ediciones críticas, epistolarios, memorias, bibliografías, y los proyectos de seminarios y cursos pendientes.

  14. La sociedad civil mexicana y el reto de la justicia epistémica en el regionalismo contemporáneo

    OpenAIRE

    2013-01-01

    markdownabstract__Introducción__ En respuesta a la pregunta fundamental de cuáles son los retos de la sociedad civil mexicana frente al multilateralismo del siglo xxi, en este artículo se argumentará que uno de los retos más urgentes que enfrenta la sociedad civil mexicana que busca incidir en y/o resistir la política multilateral vigente de integración regional (o regionalismo) es el reto de la justicia epistémica. La justicia epistémica se entiende en esta contribución, desde los aportes de...

  15. Regionalismo y Seguridad Sudamericana: ¿son relevantes el Mercosur y la Unasur?

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    Augusto Wagner Menezes Teixeira

    2010-09-01

    Full Text Available El artículo discute el papel del Mercosur en la construcción de un amplio régimen de seguridad en América del Sur; para lo cual se utiliza, apoyándose en la Escuela de Copenhague, un concepto ampliado y profundizado de seguridad, donde el sector político gana relevancia explicativa. Después de desarrollar la discusión teórica sobre las relaciones entre integración regional y seguridad, se realiza una evaluación sobre cómo el Mercosur y la Unasur avanzan en la construcción de un macro-régimen de seguridad regional. Este análisis nos lleva a sostener que la región todavía no está en vías de constituir una comunidad de seguridad, sin embargo, la creación del Consejo de Seguridad-Unasur alude a un posible avance en la cooperación en asuntos estratégicos, inaugurando un momento nuevo en el regionalismo suramericano. AbstractThis article offers an analysis of Mercosur’s role in the construction of a broad security regime in South America. To that end, based on the Copenhagen School, I use a broadened and deepened concept of security in which the political sector gains explanatory relevance. After developing the theoretical discussion on the relationship between regional integration and security, I evaluate how Mercosur and Unasur proceed in the construction of a macro-regime of regional security. This analysis brings us to maintain that the region is not yet on the way to constructing a security community. However, the creation of the Unasur Security Council suggests possible progress in cooperation on strategic matters, opening the way to a new moment in South American regionalism.

  16. Regionalismo abierto y nueva integración, ¿qué modelo genera más integración comercial en Sudamérica?

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    Susana Herrero Olarte

    2017-01-01

    Full Text Available Sudamérica ha experimentado recientemente dos modelos de integración en el proceso de globalización económica. En los noventa, el regionalismo abierto priorizaba el crecimiento del comercio y promovía para ello el libre mercado y la mínima intervención del Estado. En el siglo XXI, la nueva integración proponía un comercio intrarregional capaz de crecer y generar beneficios más allá de los económicos apoyándose para ello en la UNASUR. Ambos modelos conviven en el discurso y podrían llegar a complementarse en la práctica pero, más allá de la teoría ¿cuál ha generado una mayor integración comercial? La aplicación de varios índices muestra cómo el intercambio entre países sudamericanos era mayor en los noventa que en el siglo XXI por la irrupción de China en el mercado, que ha absorbido en los últimos años parte importante del comercio regional, lo que invita a considerar que el regionalismo abierto ha generado más integración comercial que la nueva integración, seducida por las oportunidades desde el exterior.

  17. Visiones del desarrollo: un estudio del bajo Atrato 2006-2014

    OpenAIRE

    Mantilla Ramos, Aleydy Viviana

    2016-01-01

    La región del Pacífico colombiano se ha identificado de varias maneras, dentro de las cuales el subdesarrollo ha sido la más representativa, para ello, el crecimiento económico se caracterizó como la respuesta, pero con el tiempo las poblaciones afrodescendientes han comenzado a ver grandes ventajas en el desarrollo comunitario para su economía. El presente trabajo de investigación busca exponer las visiones de desarrollo económico ejecutadas por el gobierno y el de las po...

  18. Visiones del África Romana = Views of Roman Africa

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    Enrique Gozalbes Cravioto

    2016-04-01

    Full Text Available En el presente trabajo se estudia la evolución de los estudios sobre el África romana. La investigación se realiza a partir de la consideración de diversas etapas, así como de su relación con la evolución política de los países del Magreb. En estas etapas se tienen en cuenta aspectos diversos analizados por los investigadores: la perduración del mundo púnico, la vida urbana, la relación con el mundo indígena, la romanización, la cultura, el papel del ejército, etc.In this paper we analyze the evolution of the studies of Roman Africa. Our research is conducted from the consideration of various stages, and its relation to political developments in the countries of the Maghreb. In these stages are considered various aspects analyzed by the researchers: the persistence of Punic World, the urban life, the relationship with the indigenous World, the Romanization, the Culture, the role of the Army, etc.

  19. Emprendimiento: visiones desde las teorias del comportamiento humano

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    Jorge Andrés Marulanda Montoya

    2009-04-01

    Full Text Available El artículo tiene como objeto presentar una aproximación al emprendimiento desde el marco teórico del comportamiento humano, visto desde la perspectiva de las teorías Etológicas y principalmente desde el punto de vista psicológico. Se busca mediante el análisis identificar las características internas y las habilidades (competencias que poseen los emprendedores, respondiendo así a la pregunta de si los emprendedores se hacen o nacen.

  20. Los Nuevos Regionalismos: Entrevista Con La Dra. Marianne Marchand. Directora De La Maestría En Estudios Sobre Norteamérica. Facultad De Relaciones Internacionales, Universidad De Las Américas, Puebla, México

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    Edgar Solano Muñoz

    2011-08-01

    Full Text Available Los Nuevos Regionalismos, tiene como fin analizar los procesos sociales, económicos, políticos y culturales detonados por la globalización de fin del siglo XX. Dichos procesos, se plasman en variedad de fenómenos, la gran mayoría de ellos ubicados el orden transnacional. Por ello, el interés de los estudios se centra, en la constitución de las nuevas identidades en zonas de frontera, la conformación de redes de solidaridad-conflicto-exclusión e inclusión y el tema de los diversos procesos de integración regional, sobre todo aquellos de carácter no oficial.

  1. Democracia e regionalismo chez Jean-Louis Quermonne Democracy and regionalism chez Jean-Louis Quermonne

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    Marcelo de Almeida Medeiros

    2008-01-01

    Full Text Available Com o intuito de contribuir para o alargamento do espectro de autores não anglófonos na literatura de Ciência Política do Brasil, o presente texto visa a (revisitar a questão da Democracia e do Regionalismo em Jean-Louis Quermonne. Ele está constituído de três partes. A primeira situa o autor no cenário da ciência política francesa através de expedita biografia. A segunda promove uma análise crítica e comparativa dos trabalhos de Quermonne que versam sobre a temática da Democracia, a saber: O governo da França sob a República, Os regimes políticos ocidentais e As políticas institucionais. A terceira parte procura estudar, também crítica e comparativamente, o pensamento de Quermonne no que toca a problemática do Regionalismo: O sistema político da União Européia, A Europa e o federalismo e A Europa em busca de legitimidade. Finalmente, o artigo traz algumas reflexões conclusivas apontando a importância do pensamento político francês em geral e de Jean-Louis Quermonne, em particular, para a ciência política contemporânea.Aiming at the development of the study of non-anglophone authors in the Political Science literature in Brazil, this text seeks to approach the issues of both Democracy and Regionalism in Jean-Louis Quermonne's bibliography. It has three parts. The first situates the author in the French political science scenario through a brief biography. The second part promotes a critical and comparative analysis of Quemonne's works on Democracy , i.e.: Le Gouvernement de la France sous la Vème République, Les régimes politiques occidentaux and Les politiques institutionnelles. The third part inquires, also critically and comparatively, about Quermonne's thinking on Regionalism: Le système politique de l'Union Européenne, L'Europe et le fédéralisme and L'Europe en quête de légitimité. Finally, this article brings some conclusive considerations, pointing out both the importance of the French, in general

  2. Las visiones distópicas de los derechos humanos en la literatura juvenil del siglo XXI

    OpenAIRE

    López Vargas, Andrés

    2014-01-01

    El presente trabajo, tiene como tema central, la historia como susteneto de las visiones distópicas de los derechos humanos en las novelas juveniles del siglo XXI, analizado desde la teoría de los derechos humanos con relación a las novelas de Suzane Collins. El fenómeno de los Juegos del Hambre, trilogía leteraria escrita por Suzane Collin escritora Estadounidense, especilaizada en literatura infanil y publicada en Estados Unidos, por Scholatic press, la cual se compone de "THE HUGER gAMES",...

  3. A case with 46,XX,del(11)(q23.2) karyotype and poor vision with literature review.

    Science.gov (United States)

    Mahjoubi, F; Razazian, F; Torabi, R

    2014-01-01

    Here we describe clinical and cytogenetic data on a female child whom had been referred to our laboratory suspected to have Turner syndrome since she had webbed neck. Cytogenetic analysis revealed that she had deletion at 11q23.2 to 11q terminal so her karyotype was ascertained as 46,XX,del(11)(q23.2). Her parents had normal karyotypes. In addition to many clinical features of del(11q ) syndrome the case had poor vision which is not common for this syndrome. Clinical features of this case and a few published cases will be reviewed briefly.

  4. Diálogos con la Reina de los Cielos. Visiones y locuciones de una monja chilena del siglo XVIII

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    Millar Carvacho, René

    2015-06-01

    Full Text Available This article analyses an unpublished text written by a nun in Santiago of Chile around the mid-eighteenth century. The text, written by her confessor’s command, recounts the visions and locutions that she had with the Virgin Mary, which revolved around the figure of the confessor. This makes quite a special report because the priest appears as a central character of the visions, and the one who benefits from the intercession of the nun before the heavenly beings. At the same time, the account gives evidence of the nun’s awareness of her role, her limitations as a woman and her mediator power. On the other hand, the nun’s narrative shows not only the way of living her faith, but also allows us to get nearer to the ‘religious mentality’ of her time.El artículo analiza un texto inédito escrito por una monja de Santiago de Chile, a mediados del siglo XVIII, por mandato de su confesor. En él se refieren las visiones y locuciones tuvo con la Virgen, las que giran en torno a la figura del confesor. Esto hace bastante especial el relato, pues el sacerdote aparece como un personaje central de las visiones, que se beneficia de la intercesión de la religiosa ante los seres celestiales. Pero al mismo tiempo, la narración deja en evidencia a una religiosa muy consciente de su papel, de sus limitaciones como mujer y de su poder mediador. Por otra parte, el relato de la monja muestra no sólo su manera de vivir la fe, sino también nos permite acercarnos a la mentalidad religiosa de su época.

  5. Sintomas de “regionalismo crítico”: sobre o “decorativismo” na pintura de Amadeo de Souza Cardoso

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    Cunha Leal, Joana

    2014-04-01

    Full Text Available This article discusses at its outset the way Portuguese art history acknowledged and debated the relation that Amadeo Souza Cardoso’s painting establishes between international modernism and its regional Portuguese provenance. This debate imposed the idea that Amadeo’s national origins brought about, by way of the putative Portuguese disregard of main cultural and aesthetic standards, a trace of provincialism, eventually making his work unable of any critical stance. This provincialism is diagnosed on the basis of Amadeo’s decorative appropriation of Robert Delaunay’s simultaneous color circles. This article discusses this thesis, demonstrating that, far from the reactionary drive associated to it, Amadeo’s decorative interpretation of such element must, instead, be understood as a symptom of resistance, one that can be acknowledged as approaching the idea of “critical regionalism”. A final hypothesis suggests that the invisibility of this symptom arises from a perspective that associates modernism to the overcoming of representation in art.Se analiza cómo la historiografía portuguesa dimensionó la relación que la pintura de Amadeo de Souza Cardoso (1887-1918 establece entre las indagaciones internacionales del modernismo y su regional “portugalidad”. Somos conducidos así a la idea de que el origen portugués introduce en la obra de Amadeo, por putativa insuficiencia cultural y estética, un ingenuo provincianismo desprovisto de instancia crítica. Ese provincianismo lo haría apropiarse decorativamente de los célebres discos simultáneos de Robert Delaunay. Este artículo pretende discutir esa tesis, procurando demostrar que, lejos de la distorsión que se le atribuye, la apropiación “decorativa” que Amadeo hace de ese elemento se inscribe en un plano de resistencia cercano a la idea de “regionalismo crítico”. Sobreviene, por fin, la hipótesis, desarrollada a partir del análisis de una tele de 1917, de que la

  6. visione satirica e paradossale del terzo millennio ne l'apocalisse ...

    African Journals Online (AJOL)

    User

    sul pianeta già surriscaldato e sfruttato irresponsabilmente, se d'improvviso l'uso sfrenato di idrocarburi e di energia elettrica generata da combustibili fossili – causa di enormi e irreversibili danni ambientali – portasse all'esaurimento del carbone e del petrolio e di conseguneza della produzione di energia elettrica. Un tale.

  7. Virtualidad e hipertexto constructivo en dos visiones literarias del Museo del Prado: Manuel Mujica Lainez y Javier Sierra

    OpenAIRE

    Lourdes C. Sifontes Greco

    2015-01-01

    Las obras Un novelista en el Museo del Prado, de M. Mujica Lainez, y El Maestro del Prado, de J. Sierra, constituyen dos miradas sobre un mismo espacio museístico y patrimonial que establecen recorridos inmersivos e interactivos susceptibles de ser considerados propuestas verbales de multimedialidad e hipertextualidad, cuya lectura construye un corpus virtual en diálogo con otros objetos culturales, como el discurso histórico, las guías de museo, otros textos impresos, las páginas web y las a...

  8. Visiones encontradas en la celebración de la independencia mexicana a finales del siglo XIX

    Directory of Open Access Journals (Sweden)

    Granados García, Aimer

    2003-08-01

    Full Text Available This article analyses the opposed visions held by some popular sectors of Mexico City, as well as by a portion of members of the Spanish population, in the frame of the annual celebration of Independence, during the last decade of the XIXth Century. From the perspective of «ethnicities in conflict», the work analyses the hispanophobia and indophobia expressed by such social actors. The study is based on the chronicles of events published by Mexico City in regard to the conflicts that took place yearly, during that festivity

    Este artículo analiza las visiones encontradas que algunos sectores populares en la Ciudad de México, así como una parte de la colonia española, tuvieron en el marco de la celebración anual de la independencia durante la última década del siglo XIX. Desde la perspectiva de las «etnicidades en conflicto», el trabajo analiza la hispanofobia e indofobia expresada por dichos actores sociales. El estudio tiene como fuente documental las crónicas que sobre la celebración anual de la independencia hacían los periódicos de la ciudad de México.

  9. Virtualidad e hipertexto constructivo en dos visiones literarias del Museo del Prado: Manuel Mujica Lainez y Javier Sierra

    Directory of Open Access Journals (Sweden)

    Lourdes C. Sifontes Greco

    2015-12-01

    Full Text Available Las obras Un novelista en el Museo del Prado, de M. Mujica Lainez, y El Maestro del Prado, de J. Sierra, constituyen dos miradas sobre un mismo espacio museístico y patrimonial que establecen recorridos inmersivos e interactivos susceptibles de ser considerados propuestas verbales de multimedialidad e hipertextualidad, cuya lectura construye un corpus virtual en diálogo con otros objetos culturales, como el discurso histórico, las guías de museo, otros textos impresos, las páginas web y las aplicaciones móviles que amplían, cuestionan y enriquecen el acercamiento a la obra de arte ofrecido por el museo. The works Un novelista en el Museo del Prado, by Manuel Mujica Lainez, and El Maestro del Prado, by Javier Sierra build two perspectives about the same heritage space tracing immersive and interactive museum “tours” that can be considered multimediatic and hypertextual literary proposals. Both texts converge in a virtual corpus that establishes a dialogue with other cultural objects, such as historical discourse, museum guides, other printed texts, websites and mobile apps that make possible an approach to the works of art that expands, puts into question and enriches the one offered by the museum.

  10. DE QUEM É O CORPO? A HOMOSSEXUALIDADE E O REGIONALISMO UNIVERSAL EM MEU TIO TÃO SÓ

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    José Humberto dos Santos Santana

    2015-10-01

    Full Text Available O presente trabalho se propõe discutir, à luz da trama do conto Meu tio tão só, de Antônio Carlos Viana, inserido na obra O meio do mundo e outros contos, publicada em 1999, o modo como o corpo, supostamente, homossexual do personagem Bau é “enxergado” pela masculinidade hegemônica, bem como o modo como tal corpo é construído e controlado pelas normas regulatórias impostas pela sociedade heteronormativa contemporânea. Para tanto, trabalharemos com Butler (2000 e Louro (2000. Este conto narra a trajetória de isolamento, medo, solidão e angústia de Tio Bau, um “solteirão” que, segundo a perspectiva das pessoas com as quais convivia em uma cidade do interior (ou em um povoado, era um homossexual que não tinha coragem de “assumir” publicamente sua identidade de gênero. Não suportando as pressões sociais (a discriminação, a marginalização e o escárnio por parte da sociedade, tal personagem suicida-se. Além disso, este estudo procura observar, com base nos postulados de Araújo (2008 e Chiappini (1995, como ocorre a transposição do regionalismo “pitoresco” na referida narrativa.

  11. LA CUADRATURA DEL CÍRCULO. GONZALO DE REPARAZ RODRÍGUEZ-BÁEZ (OPORTO, 1860-MÉXICO, 1939 Y SU DEFENSA DEL IMPERIALISMO ESPAÑOL

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    Josep Pich Mitjana

    2015-10-01

    Full Text Available La biografía de Gonzalo de Reparaz Rodríguez-Báez puede ser vista como la cuadratura del círculo, ya que estuvo vinculado a la mayor parte de las principales ideologías del período en el que vivió, pero siempre fue un contumaz defensor del imperialismo. Estuvo vinculado al republicanismo anticlerical y partidario de la autonomía de las colonias antillanas, al liberalismo progresista, al polaviejismo, al clericalismo reaccionario, al regionalismo, al republicanismo radical y al anarquismo, pero siempre fue un defensor del iberismo y del africanismo.

  12. Vision antropologica de la descentralizacion del sistema de salud en Mexico

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    Emanuel Orozco Nunez

    2013-06-01

    Full Text Available OBJETIVO: Analizar cambios organizacionales, políticos y económicos resultantes de la descentralización del sistema de salud en la población sin seguridad social en México. METODOS: Se visitaron tres estados del país seleccionados por el número de habitantes en condición de pobreza, el partido político en el poder y la etapa de implementación de la descentralización (la primera fue en 1984 y la segunda en 1997. Se realizaron entrevistas durante 2007 con informantes clave de los servicios de salud de los gobiernos estatales, personas que acudieron a consulta en los servicios estatales de salud y líderes comunitarios. Los datos fueron analizados desde una perspectiva antropológica y económica. RESULTADOS: La descentralización ocurrió de forma heterogénea en cada estado, observándose una transferencia de responsabilidades de la federación a los estados, más no así una ruptura con la dependencia del nivel central - federal. Las reformas impulsadas desde el nivel federal para crear un esquema fundamentado en principios de subsidiaridad financiera y democratización en salud enfrentan retos políticos y organizacionales para su consolidación. CONCLUSIONES: El enfoque antropológico muestra la relevancia de considerar factores organizacionales, políticos y económicos como parte del proceso de descentralización.

  13. CONTEXTO PARA LA FORMULACION DE LA VISION DEL PLAN DE DESARROLLO MUNICIPAL

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    Armando Patiño

    2001-01-01

    Full Text Available El artículo pretende establecer el nexo entre la construcción de una visión del desarrollo regional y los conceptos , métodos y modelos existentes sobre la materia. Por eso se parte de una revisión de los principales modelos y enfoques del desarrollo, asociándolos con el contexto actual de neomodernización que, a escala planetaria, introduce una severa crisis, vivida con mayor rigor en las regiones periféricas, proponiendo una alternativa heurística de visión y señalando los aspectos metodológicos para la comprensión de la ciudad, desde la perspectiva de la teoría de la complejidad. Dada la magitud de la crisis, se plantea el fortalecimiento de la democracia directa para la construcción de una visión compartida; también se señalan otros aspectos de las concepciones contemporáneas del desarrollo como libertad, en la perspectiva de Amartya Sen, orientado hacia los grupos más vulnerables, desde la filosofía política (Rawls, o como la libertad real para todos (Vanj Parijs. Finalmente, tratando de recoger lo planteado desde estas diferentes perspectivas, se realiza una propuesta sistémica de visión de desarrollo a manera de conclusión.

  14. Dos visiones del hombre americano. D’Orbigny, Marcoy y la etnología sudamericana

    Directory of Open Access Journals (Sweden)

    2003-01-01

    Full Text Available La publication récente des voyages en Amérique du Sud de d’Orbigny et de Marcoy invite à comparer, tant du point de vue scientifique que pour leur réception auprès du grand public, leurs apports respectifs à la connaissance des sociétés indigènes des basses terres. Si les deux voyageurs s’opposent en effet sur de nombreux d’aspects, ils n’en adoptèrent pas moins des attitudes communes face aux populations observées. Tout deux souffrirent de surcroît un certain discrédit de la part du milieu académique de l’époque. Que ce soit par excès ou manque de “ rigueur scientifique ”, la trajectoire des deux voyageurs est instructive sur la façon dont s’est constitué l’“ américanisme ” au milieu du XIX° siècle La reciente publicación de los viajes por América del Sur de d’Orbigny y Marcoy invita a comparar, tanto del punto de vista científico como por su recepción frente al gran público, sus contribuciones respectivas al estudio de las sociedades indígenas de las tierras bajas. Si bien los dos viajeros se oponen en muchos aspectos, compartieron sin embargo actitudes comunes frente a las poblaciones observadas, como también sufrieron un cierto discrédito por parte de los medios académicos de aquel entonces. Sea por falta o exceso de “rigor científico”, la trayectoria de ambos viajeros revela a su vez mucho sobre la construcción del “americanismo” a mediados del siglo XIX. The recent publication of the travels in South America of d’Orbigny and Marcoy leads us to compare - from a scientific point of view as for their reception to the general public - their respective contributions to the knowledge of lowland amerindians. If the two travellers contrast on numerous aspects, they have however adopted common attitudes toward the indigenous populations. They have moreover (but for diverse reasons known some kind of discredit from academic circle. However that may be, the trajectories of the two travellers is very

  15. Low Vision

    Science.gov (United States)

    ... USAJobs Home > Statistics and Data > Low Vision Low Vision Low Vision Defined: Low Vision is defined as the best- ... 2010 U.S. Age-Specific Prevalence Rates for Low Vision by Age, and Race/Ethnicity Table for 2010 ...

  16. La Vision que tienen del Calculo los Diplomados en Empresariales: Un Test Final

    Directory of Open Access Journals (Sweden)

    Seijas Macías, J. Antonio

    2008-01-01

    Full Text Available Como docentes de Matemáticas Aplicadas a la Economía y Empresa somos conscientes de las a veces difíciles relaciones entre ambas disciplinas. ¿En qué sentido se diluyen las matemáticas en la economía? ¿Qué queda de ellas en los alumnos de empresa al acabar la carrera? ¿El lenguaje matemático sigue teniendo significado para ellos? Este trabajo pretende responder a estas preguntas tomando como referencia un test pasado a los alumnos del último año de la diplomatura de Ciencias Empresariales de la Universidad de A Coruña.

  17. Análisis de las Visiones del Turismo en México

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    Alexandre Panosso Netto

    2012-08-01

    Full Text Available ResumenEste artículo tiene como finalidad el ejercicio crítico reflexivo de la importancia de la construcción del conocimiento del turismo desde la perspectiva científica. Se revisarán algunas polémicas y planteamientos de autores que lo abordan desde la perspectiva más convencional positivista que descartan su posibilidad como disciplina o ciencia, y existen otras que lo hacen desde una postura antipositivista, donde revaloran la noción de disciplina y ciencia. La visión antipositivista rebasa la parte formal positivista la cual le da posibilidad para calificarlo como ciencia, que bajo la dimensión hermenéutica, fenomenológica, dialéctica o crítica, la revaloración de conocimiento científico del turismo permite reconocer que existen comunidades, temáticas, procedimientos de cómo investigar y que también se observan intervenciones en la realidad.Palabras clave: turismo; antipositivista; ciencia; crítica; epistemología del turismo. ResumoO artigo tem por objetivo o exercício crítico reflexivo da importância da construção do conhecimento em turismo a partir da perspectiva científica. São revisadas algumas polêmicas e propostas de autores que abordam o turismo do ponto de vista positivista mais convencional, que descartam sua possibilidade como disciplina ou ciência, e aqueles que o abordam a partir de uma postura antipositivista, na qual revalorizam a noção de

  18. Regionalismo, derechos humanos y democratización en América: La importancia del contexto

    OpenAIRE

    Laurence Whitehead

    2008-01-01

    El presente artículo plantea cuatro cuestiones relativas a los derechos humanos en las Américas: examina la especificidad de Latinoamérica como región a escala mundial; la teoría de las relaciones entre democratización y derechos humanos; la dimensión regional de los derechos humanos; y, por ultimo, los derechos humanos en Colombia, Cuba, Guatemala y México, enfocando así las diversas realidades sobre el terreno. En respuesta a tales cuestiones, el autor argumenta que las Américas tienen una ...

  19. Low Vision Aids and Low Vision Rehabilitation

    Science.gov (United States)

    ... Low Vision Aids Low Vision Resources Low Vision Rehabilitation and Low Vision Aids Leer en Español: La ... that same viewing direction for other objects. Vision rehabilitation: using the vision you have Vision rehabilitation is ...

  20. Vision Lab

    Data.gov (United States)

    Federal Laboratory Consortium — The Vision Lab personnel perform research, development, testing and evaluation of eye protection and vision performance. The lab maintains and continues to develop...

  1. Venezuela e ALBA: regionalismo contra-hegemônico e ensino superior para todos Venezuela and the ALBA: counter-hegemonic regionalism and higher education for all

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    Thomas Muhr

    2010-08-01

    Full Text Available Partindo de um quadro teórico neo-gramsciano crítico à globalização, este artigo aplica a nova teoria do regionalismo (NTR e a teoria do regionalismo regulatório (TRR à sua análise e teorização dos tratados de comércio da Aliança Bolivariana para os Povos da Nossa América (ALBA-TCP como regionalismo contra-hegemônico na América Latina e Caribe (ALC. A ALBA está centrada na ideia de um Socialismo do Século XXI, que, como (inicialmente também a Revolução Bolivariana da Venezuela, substitui a 'vantagem competitiva' pela 'vantagem cooperativa'. Em seu caráter de conjunto de processos multidimensionais e transnacionais a ALBA-TCP opera dentro de/transversalmente a um número de setores e escalas, ao mesmo passo que as transformações estruturais são movidas pela interação de agentes do Estado e agentes não estatais. A política de Educação Superior para Todos (ESPT do governo venezuelano rejeita a agenda neoliberal globalizada de mercadorização, privatização e elitismo e reinvindica educação pública gratuita em todos os níveis como um direito humano fundamental. A ESPT está sendo regionalizado em um espaço educacional emergente da ALBA e assume um papel-chave nos processos de democracia direta e participatória, dos quais a construção popular (bottom-up da contra-hegemonia e a redefinição política e econômica da ALC dependem. Antes de produzir sujeitos empreendedores conformes ao capitalismo global, a ESPT procura formar subjetividades ao longo de valores morais de solidariedade e cooperação. Isso será ilustrado com referência a um estudo etnográfico de caso da Universidade Bolivariana da Venezuela (UBV.This paper employs new regionalism theory and regulatory regionalism theory in its analysis and theorisation of the Bolivarian Alliance for the Peoples of Our America (ALBA as a counter-hegemonic Latin American and Caribbean (LAC regionalism. As (initially the regionalisation of Venezuela's Bolivarian

  2. Vision Screening

    Science.gov (United States)

    ... Corneal Abrasions Dilating Eye Drops Lazy eye (defined) Pink eye (defined) Retinopathy of Prematurity Strabismus Stye (defined) Vision ... Corneal Abrasions Dilating Eye Drops Lazy eye (defined) Pink eye (defined) Retinopathy of Prematurity Strabismus Stye (defined) Vision ...

  3. Computational vision

    CERN Document Server

    Wechsler, Harry

    1990-01-01

    The book is suitable for advanced courses in computer vision and image processing. In addition to providing an overall view of computational vision, it contains extensive material on topics that are not usually covered in computer vision texts (including parallel distributed processing and neural networks) and considers many real applications.

  4. Propuesta de nueva visión del sistema de gestion de redes; Proposal of New Vision of the Networks Management System

    Directory of Open Access Journals (Sweden)

    Raúl Fernández Álvarez

    2011-02-01

    Full Text Available En el trabajo se hace un análisis de los principales cambios en la propuesta de nueva visión del sistema degestión de redes de la Unión Eléctrica. Se revisa la historia de este sistema a través de la evolución deldocumento. Se analizan los cambios que ha habido en el entorno tanto por los cambios tecnológicos y estructuralesen Cuba como por los avances de las normas internacionales. Se recogen los criterios fundamentales del nuevodocumento.  The work analyzes the proposed changes for the vision of the network management system of the ElectricalUnion. The history of this system is checked through the evolution of this important document. There areanalyzed the changes that have existed in the environment so much for the technological and structural changesin our country as for the advances of the international norms. The fundamentals criteria for the new documentsare gathered.

  5. Regionalismo estratégico: una respuesta frente a la glocalización. El desarrollo urbano posfordista en el este de Alemania

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    Claudia Tomadoni

    2016-07-01

    Full Text Available Los procesos de asociatividad territorial de una ciudad pueden derivar en proyectos de regionalización a diferentes escalas. Otrora, factores como conectividad, accesibilidad y proximidad eran imprescindibles para el posicionamiento urbano. En la actual glocalización ellos son insuficientes y dan lugar a desarrollos urbanos posfordistas. La ideología de la competitividad llevada al territorio condujo a diversos tipos de estrategias para jugar el juego de seducción al capital. La región emerge como la forma territorial que posibilita la entrada al “mercado de los lugares” que pertenecen al mundo global. La promoción de regiones es una estrategia para reforzar identidad frente a la globalización y funciona como factor para atraer actividades y población. No todas las ciudades tienen “éxito” pero la participación de agentes y la paradójica combinación de competitividad y asociatividad permiten corregir distorsiones. Aquí se aborda el caso de la ciudad-región Weimar, donde el regionalismo estratégico surge como uno de los caminos de reproducción urbana.

  6. Madrid y el teatro lírico español a partir de 1900: modernismo y regionalismo

    OpenAIRE

    Jiménez, Andrés

    2008-01-01

    Tras el Desastre del 98 acontecieron en la sociedad española una serie de cambios que agudizaron la decadencia del sistema canovista. En tanto que los intelectuales de principios del siglo XX abogaron por el regeneracionismo y el oportunismo circunstancial reivindicó el protagonismo regional en un país centralizado, Madrid, capital de la monarquía y escaparate de la Restauración, reflejó asimismo estas y otras tendencias coetáneas cuya evolución se advirtió tanto en la reconversión física que...

  7. ASSUMPTIONS FOR A VISION OF THE CIVIC FORMATION IN HIGHER EDUCATION / CUALIDADES REGULARIZADAS DEL CIUDADANO CON EDUCACIÓN SUPERIOR

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    María de Jesús Calderíus Fernández

    2012-10-01

    Full Text Available The present analysis has as purpose to show the specific expressions of the Cuban revolutionary citizen's paradigm in the case of the citizens with higher education, starting from the determination of the qualities that should characterize the university professional in his/her performance as a citizen. This definition becomes an orientating element for the understanding of the particularities of the process of civic formation at the universities. It is based that the fundamental quality that distinguishes the university student in his/her citizen role is the one of being an active agent of civic alternatives for the social transformation. It is expressed through his/her qualities as a committed and sensitive creative carrier of the civic culture, cultured social educator and educational socializer of the society, specialized citizenship promoter and flexible person in the civic performance within different contexts.ResumenEl presente análisis tiene como propósito mostrar las expresiones específicas del paradigma del ciudadano revolucionario cubano en el caso de los ciudadanos con Educación Superior, a partir de la determinación las cualidades que deben caracterizar al profesional universitario en su desempeño como ciudadano. Esta definición deviene elemento orientador para la comprensión de las particularidades del proceso de formación ciudadana en las Universidades. Se precisa que la cualidad fundamental que distingue al universitario en su rol de ciudadano es la de ser un activo gestor de alternativas ciudadanas para la transformación social. Ello se expresa a través de sus cualidades como comprometido y sensible portador creativo de la cultura ciudadana, culto educador social y movilizador educativo del pueblo, especializado promotor de ciudadanía y flexible en la actuación ciudadana en diferentes contextos.

  8. Urban Social Vision: from theory to practice / Visión Social del Urbanismo: de la teoría a la práctica

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    Alfredo Palacio Barra

    2011-09-01

    Full Text Available This article deals with the interest of the Academia on social matters in relation with territory and cities; and urban development initiatives implemented in Chile. It analyses the changing relationship between social sciences according to an academic vision and the planning policies generated by local and national authorities that propose public projects and programmes for the development of the city, generating conflicts as well as a necessary and contradictory process of urbanisation. This process, has gone through various stages and its evolution combines different temporal and territorial spaces. In this article, it is possible to identify a renovation of these efforts since the Bicentenary Programme, by which the State of Chile plans to celebrate its 200 Anniversary of Independence with a renovated urban image that reflects the "new face" that the country wants to project. Este trabajo, trata sobre el interés de los asuntos sociales de la academia en relación al territorio y las ciudades y los intentos de desarrollo urbano implementados en Chile. Interesa analizar, la cambiante relación entre las ciencias sociales de acuerdo a la visión académica y la planificación de la administración y el gobierno nacional y local, la que al plantear los proyectos y programas públicos de desarrollo de la ciudad, genera tanto conflictos como un necesario y contradictorio proceso de urbanización. Este proceso, ha pasado por varias etapas y su evolución contrasta distintos espacios temporales y territoriales. En este artículo, se identifica una renovación de esos esfuerzos a partir del Programa Bicentenario, en que el estado chileno plantea celebrar los 200 años de independencia con una renovada imagen urbana que dé muestra del "nuevo rostro" que pretende proyectar el país.

  9. "O Romancista e o Engenho: José Lins do Rego e o regionalismo nordestino dos anos 1920 e 1930", de Mariana Ghaguri "O Romancista e o Engenho: José Lins do Rego e o regionalismo nordestino dos anos 1920 e 1930", by Mariana Chaguri

    Directory of Open Access Journals (Sweden)

    Mário Augusto Medeiros da Silva

    2013-04-01

    Full Text Available Trata-se das relações entre a formalização estética do Ciclo da Cana de Açúcar e o processo social do Regionalismo Nordestino. Analisa a trajetória social e produção literária de José Lins do Rego, buscando deslindar as formas de realização social do autor, nos circuitos intelectuais e políticos de que participou (Pernambuco e Rio de Janeiro, notadamente e as condições sociais de produção de sua obra (editoras em que a mesma é publicada, recepção entre a crítica de época etc.. Em vista das disputas travadas com os Modernistas paulistas de 1922, sua interpenetração com a crise política dos anos 1930 e com as formulações de Gilberto Freyre acerca das ideias de Região e Nação, Chaguri sugere a análise do Regionalismo Nordestino como parte de um projeto estético e político, cujas intenções e consequências merecem ser sociologicamente examinadas.The book deals with the relations between the aesthetics formalization of the Sugarcane Cycle and the social process of the Brazilian Northeastern regionalism. It analyzes the social trajectory and literary work of José Lins do Rego, seeking to disclose this author's ways of social fulfillment in the intellectual and political circles he participated (especially in Pernambuco and Rio de Janeiro as well as the social conditions of production of his work (his publishers, critiques etc.. Considering his disputes with members of the 1922 modernist movement, intertwined with the political crisis of the 1930s and the formulations of Gilberto Freyre's notions about Region and Nation, Chaguri suggests the analysis of Northeastern Regionalism while part of an aesthetic and political project whose intentions and consequences deserve to be sociologically examined.

  10. Visiones regionales superpuestas y propuesta del Ecosistema Cultural para Santa Cruz de Mompox (Bolívar, Colombia

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    Ana María Osorio Guzmán

    2015-01-01

    Full Text Available El municipio de Santa Cruz de Mompox (Departamento de Bolívar, Colombia cuyo centro históricofue declarado Patrimonio de la Humanidad por la UNESCO en 1995, da su nombre a la regiónconocida como Depresión Momposina, a veces confundida con la región de La Mojana ¿Esla Depresión Momposina la misma región de La Mojana? ¿Qué área comprende? Por una parte,se consultan varias fuentes y se identifican diferencias en la delimitación de la región (o regionesque llevan estos nombres y que varían según los actores que las delimiten y la finalidad perseguida.Por otra parte, se propone la aproximación territorial al Ecosistema Cultural Momposinobasada en una propuesta teórica y metodológica que articula las demandas del Centro Históricoal territorio -aquellas relacionadas a las expresiones culturales patrimoniales-, como aporte a lavaloración, protección y gestión patrimonial así como a la planificación regional. Este artículo seenmarca en la investigación Centro histórico y territorio: Ecosistema cultural momposino.

  11. Simón Rodríguez, el maestro del libertador

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    Javier Ocampo López

    2007-01-01

    Full Text Available Este trabajo de investigación es un estudio sobre el pensamiento educativo del Maestro SIMÓN RODRÍGUEZ, educador venezolano de los años de la Independencia de América y de la primera mitad del siglo XIX. Este educador, “Maestro del Libertador Simón Bolívar”, refleja el ideario de la Ilustración sobre la educación pública y práctica, para las generaciones de los nuevos Estados Nacionales. Asimismo, su interpretación sobre la independencia de Hispanoamérica, en unos años de surgimiento del regionalismo, el caudillismo y los grupos políticos. Culmina su ideario sobre la prospectiva del Futuro de América y la importancia de la Educación.

  12. MERCOSUR, agenda de temas y debate de ideas en la segunda década del siglo XXI

    Directory of Open Access Journals (Sweden)

    Lincoln Bizzozero

    2013-01-01

    Full Text Available Resumen: Esta contribución analiza el regionalismo del MERCOSUR, los temas de la agenda y el debate de ideas. Se plantean dos cuestiones: la autonomía de los sistemas políticos nacionales y de la sociedad civil frente al Estado en la generación de temas de la agenda regional y la regionalización de los debates. Abstract: This contribution examines MERCOSUR regionalism, the agenda items and discussion of ideas. Two questions arise: the autonomy of national political systems and civil society against the state in generating regional agenda topics and discussions of regionalization

  13. Computer vision

    Science.gov (United States)

    Gennery, D.; Cunningham, R.; Saund, E.; High, J.; Ruoff, C.

    1981-01-01

    The field of computer vision is surveyed and assessed, key research issues are identified, and possibilities for a future vision system are discussed. The problems of descriptions of two and three dimensional worlds are discussed. The representation of such features as texture, edges, curves, and corners are detailed. Recognition methods are described in which cross correlation coefficients are maximized or numerical values for a set of features are measured. Object tracking is discussed in terms of the robust matching algorithms that must be devised. Stereo vision, camera control and calibration, and the hardware and systems architecture are discussed.

  14. All Vision Impairment

    Science.gov (United States)

    ... Statistics and Data > All Vision Impairment All Vision Impairment Vision Impairment Defined Vision impairment is defined as the best- ... 2010 U.S. Age-Specific Prevalence Rates for Vision Impairment by Age and Race/Ethnicity Table for 2010 ...

  15. Dos visiones del espacio marino como modernidad. Entre la poesía de Rubén Darío y la pintura de Joaquín Sorolla

    Directory of Open Access Journals (Sweden)

    Acereda, Alberto

    2003-06-01

    Full Text Available The representation of the marine space in Hispanic fin-de-siècle allows us to establish some comments to carry out a new reading of the difficult concept of modernity. The present article studies two visions of the marine space as modernity. On the one hand, the paintings by the Spaniard Joaquin Sorolla present the marine space as a locus amoenus, and as a place for enjoyment where art becomes an economic object. On the other hand, the Nicaraguan poet Rubén Darío intented to create an art opposed to materialism, and he gave us a vision of the ocean linked to a metaphysical meditation of existential tones. Darío was familiar with Joaquin Sorolla's paintings and he even wrote short essays on them. This particular aspect allows us to prove in a clearer way the differences in their visions about modernity and art.La representación del espacio marino en el fin de siglo hispánico permite establecer algunas consideraciones que favorecen una nueva lectura sobre el difícil concepto de modernidad. El presente artículo estudia dos visiones del espacio marino como modernidad. Por un lado, la pintura del español Joaquín Sorolla percibe el espacio marino como locus amoenus y marco de diversión por el que el arte se convierte en un objeto económico. Por otro lado, el poeta nicaragüense Ruben Darío aspiró a un arte opuesto al materialismo y planteó una visión del mar ligada a una reflexión metafísica de signo existencial. Darío conoció la pintura de Joaquín Sorolla y hasta en algún caso realizó breves comentarios de ella. Esta particularidad nos permite probar de manera más clara las diferencias en sus visiones sobre la modernidad y el arte.

  16. Industrial vision

    DEFF Research Database (Denmark)

    Knudsen, Ole

    1998-01-01

    This dissertation is concerned with the introduction of vision-based application s in the ship building industry. The industrial research project is divided into a natural seq uence of developments, from basic theoretical projective image generation via CAD and subpixel analysis to a description...... is present ed, and the variability of the parameters is examined and described. The concept of using CAD together with vision information is based on the fact that all items processed at OSS have an associated complete 3D CAD model that is accessible at all production states. This concept gives numerous...... possibilities for using vision in applications which otherwise would be very difficult to automate. The requirement for low tolerances in production is, despite the huge dimensions of the items involved, extreme. This fact makes great demands on the ability to do robust sub pixel estimation. A new method based...

  17. Fractured Visions

    DEFF Research Database (Denmark)

    Bonde, Inger Ellekilde

    2016-01-01

    In the post-war period a heterogeneous group of photographers articulate a new photographic approach to the city as motive in a photographic language that combines intense formalism with subjective vision. This paper analyses the photobook Fragments of a City published in 1960 by Danish photograp...

  18. Agrarian Visions.

    Science.gov (United States)

    Theobald, Paul

    A new feature in "Country Teacher,""Agrarian Visions" reminds rural teachers that they can do something about rural decline. Like to populism of the 1890s, the "new populism" advocates rural living. Current attempts to address rural decline are contrary to agrarianism because: (1) telecommunications experts seek to…

  19. América Latina y América del Norte ante los procesos de regionalización mundial

    Directory of Open Access Journals (Sweden)

    Pedro Manuel Rodríguez Suárez

    2016-11-01

    Full Text Available Sin lugar a dudas, al terminar la Guerra Fría los regionalismos se expandieron en el escenario internacional, debido al fin de la confrontación ideológica Este-Oeste; a las transformaciones democráticas que tuvieron efecto en África, América, Asia y Europa; a las nuevas problemáticas transfronterizas que afectan a las regiones en el marco del siglo XXI, y al fenómeno de la globalización. Este artículo tiene tres objetivos cardinales. El primero, evalúa las variables sine qua non que han tenido un peso determinante a la luz de la edificación de las integraciones regionales durante la primera y la segunda ola. El segundo, pretende encontrar respuestas epistemológicas en relación con el éxito o el fracaso de los regionalismos, y el tercer y el último objetivo analiza el surgimiento y la evolución de los regionalismos en América Latina y en América del Norte. En este mismo orden de ideas, se analizan los resultados que han cosechado las integraciones regionales en ambas regiones de América, así como las mayores problemáticas que enfrentan. Con la finalidad de comprender teóricamente lo expuesto en este artículo se utilizará la teoría de juegos de Karl W. Deutsch, la teoría neoinstitucional de Sven Steinmo, así como la teoría de la seguridad compleja de Barry Buzan. Cabe hacer alusión a que el autor aplicará el marco teórico anteriormente mencionado en las conclusiones generales de este artículo.

  20. Healthy Vision Tips

    Science.gov (United States)

    ... NEI for Kids > Healthy Vision Tips All About Vision About the Eye Ask a Scientist Video Series ... Links to More Information Optical Illusions Printables Healthy Vision Tips Healthy vision starts with you! Use these ...

  1. Kids' Quest: Vision Impairment

    Science.gov (United States)

    ... Fact Check Up Tourette Questions I Have Vision Impairment Quest Vision Fact Check Up Vision Questions I ... Tweet Share Compartir What should you know? Vision impairment means that a person’s eyesight cannot be corrected ...

  2. Pleiades Visions

    Science.gov (United States)

    Whitehouse, M.

    2016-01-01

    Pleiades Visions (2012) is my new musical composition for organ that takes inspiration from traditional lore and music associated with the Pleiades (Seven Sisters) star cluster from Australian Aboriginal, Native American, and Native Hawaiian cultures. It is based on my doctoral dissertation research incorporating techniques from the fields of ethnomusicology and cultural astronomy; this research likely represents a new area of inquiry for both fields. This large-scale work employs the organ's vast sonic resources to evoke the majesty of the night sky and the expansive landscapes of the homelands of the above-mentioned peoples. Other important themes in Pleiades Visions are those of place, origins, cosmology, and the creation of the world.

  3. Cartesian visions.

    Science.gov (United States)

    Fara, Patricia

    2008-12-01

    Few original portraits exist of René Descartes, yet his theories of vision were central to Enlightenment thought. French philosophers combined his emphasis on sight with the English approach of insisting that ideas are not innate, but must be built up from experience. In particular, Denis Diderot criticised Descartes's views by describing how Nicholas Saunderson--a blind physics professor at Cambridge--relied on touch. Diderot also made Saunderson the mouthpiece for some heretical arguments against the existence of God.

  4. Artificial vision.

    Science.gov (United States)

    Zarbin, M; Montemagno, C; Leary, J; Ritch, R

    2011-09-01

    A number treatment options are emerging for patients with retinal degenerative disease, including gene therapy, trophic factor therapy, visual cycle inhibitors (e.g., for patients with Stargardt disease and allied conditions), and cell transplantation. A radically different approach, which will augment but not replace these options, is termed neural prosthetics ("artificial vision"). Although rewiring of inner retinal circuits and inner retinal neuronal degeneration occur in association with photoreceptor degeneration in retinitis pigmentosa (RP), it is possible to create visually useful percepts by stimulating retinal ganglion cells electrically. This fact has lead to the development of techniques to induce photosensitivity in cells that are not light sensitive normally as well as to the development of the bionic retina. Advances in artificial vision continue at a robust pace. These advances are based on the use of molecular engineering and nanotechnology to render cells light-sensitive, to target ion channels to the appropriate cell type (e.g., bipolar cell) and/or cell region (e.g., dendritic tree vs. soma), and on sophisticated image processing algorithms that take advantage of our knowledge of signal processing in the retina. Combined with advances in gene therapy, pathway-based therapy, and cell-based therapy, "artificial vision" technologies create a powerful armamentarium with which ophthalmologists will be able to treat blindness in patients who have a variety of degenerative retinal diseases.

  5. Virtual Vision

    Science.gov (United States)

    Terzopoulos, Demetri; Qureshi, Faisal Z.

    Computer vision and sensor networks researchers are increasingly motivated to investigate complex multi-camera sensing and control issues that arise in the automatic visual surveillance of extensive, highly populated public spaces such as airports and train stations. However, they often encounter serious impediments to deploying and experimenting with large-scale physical camera networks in such real-world environments. We propose an alternative approach called "Virtual Vision", which facilitates this type of research through the virtual reality simulation of populated urban spaces, camera sensor networks, and computer vision on commodity computers. We demonstrate the usefulness of our approach by developing two highly automated surveillance systems comprising passive and active pan/tilt/zoom cameras that are deployed in a virtual train station environment populated by autonomous, lifelike virtual pedestrians. The easily reconfigurable virtual cameras distributed in this environment generate synthetic video feeds that emulate those acquired by real surveillance cameras monitoring public spaces. The novel multi-camera control strategies that we describe enable the cameras to collaborate in persistently observing pedestrians of interest and in acquiring close-up videos of pedestrians in designated areas.

  6. Pediatric Low Vision

    Science.gov (United States)

    ... Asked Questions Español Condiciones Chinese Conditions Pediatric Low Vision What is Low Vision? Partial vision loss that cannot be corrected causes ... and play. What are the signs of Low Vision? Some signs of low vision include difficulty recognizing ...

  7. Binocular Vision

    Science.gov (United States)

    Blake, Randolph; Wilson, Hugh

    2010-01-01

    This essay reviews major developments –empirical and theoretical –in the field of binocular vision during the last 25 years. We limit our survey primarily to work on human stereopsis, binocular rivalry and binocular contrast summation, with discussion where relevant of single-unit neurophysiology and human brain imaging. We identify several key controversies that have stimulated important work on these problems. In the case of stereopsis those controversies include position versus phase encoding of disparity, dependence of disparity limits on spatial scale, role of occlusion in binocular depth and surface perception, and motion in 3D. In the case of binocular rivalry, controversies include eye versus stimulus rivalry, role of “top-down” influences on rivalry dynamics, and the interaction of binocular rivalry and stereopsis. Concerning binocular contrast summation, the essay focuses on two representative models that highlight the evolving complexity in this field of study. PMID:20951722

  8. Robot Vision

    Science.gov (United States)

    Sutro, L. L.; Lerman, J. B.

    1973-01-01

    The operation of a system is described that is built both to model the vision of primate animals, including man, and serve as a pre-prototype of possible object recognition system. It was employed in a series of experiments to determine the practicability of matching left and right images of a scene to determine the range and form of objects. The experiments started with computer generated random-dot stereograms as inputs and progressed through random square stereograms to a real scene. The major problems were the elimination of spurious matches, between the left and right views, and the interpretation of ambiguous regions, on the left side of an object that can be viewed only by the left camera, and on the right side of an object that can be viewed only by the right camera.

  9. Impairments to Vision

    Science.gov (United States)

    ... an external Non-Government web site. Impairments to Vision Normal Vision Diabetic Retinopathy Age-related Macular Degeneration In this ... pictures, fixate on the nose to simulate the vision loss. In diabetic retinopathy, the blood vessels in ...

  10. Ideas for Teaching Vision and Visioning

    Science.gov (United States)

    Quijada, Maria Alejandra

    2017-01-01

    In teaching leadership, a key element to include should be a discussion about vision: what it is, how to communicate it, and how to ensure that it is effective and shared. This article describes a series of exercises that rely on videos to illustrate different aspects of vision and visioning, both in the positive and in the negative. The article…

  11. Visiones jóvenes sobre el quehacer urbano arquitectónico en Chile. Seminarios investigación de pregrado del área

    Directory of Open Access Journals (Sweden)

    Maulén, Jorge

    2000-08-01

    Full Text Available Los Seminarios de Investigación tutelada de los estudiantes de V año de la carrera de arquitectura en la Universidad de Chile, dan cuenta de una apreciación crítica acerca del efecto urbano del quehacer del arquitecto, como así mismo de la enseñanza recibida. Responden así a la pragmática separación con que ella forma en el diseño arquitectónico y el urbanismo, reponiendo el tema de la necesaria integralidad de las decisiones de arquitectura en la gradiente total del espacio construido y señalando una falta de herramientas para decidir en referencia a las reacciones del hombre común. En su búsqueda de claves para situar el problema y demostrar la incomunicación del arquitecto con la sociedad y contexto, han hecho pequeños descubrimientos no descritos en la literatura, que este artículo pretende reconocer y compartir como aportes al conocimiento de la disciplina, en el proceso de significación de los espacios y de la ciudad. /Research Seminars architecture students at the undergraduate of the University of Chile, reflect critically on the urban effect of task of the architect, as likewise of the studies. The students have made small discoveries that have not been described in the literature. This article seeks to recognize and share them as contributions to the knowledge of the discipline.

  12. Gestión pública, privada y acción colectiva en la cuenca del río Portoviejo: visiones y conflictos

    Directory of Open Access Journals (Sweden)

    Byron Vicente Coral

    2017-12-01

    Full Text Available El agua es un bien común cuyo modelo de gestión puede provocar grandes conflictos si en él no están incorporados los intereses, raíces culturales y criterios de sostenibilidad de los participantes. En Ecuador existe una importante tradición y experiencia en comunidades campesinas e indígenas para la gestión de bienes que no son ni públicos ni privados, sino comunales. Un caso especial lo constituye la transferencia de la parte baja del sistema de riego Poza Honda a una comunidad de regantes organizados en la Junta General de Usuarios del Sistema de Riego Rocafuerte. En este contexto se analiza la política pública de riego y los modelos de gestión desarrollados con su implementación. Para ello revisamos el efecto que han producido las reformas legales en la gestión del agua a partir de un estudio de caso que involucra una muestra de productores familiares ubicados en la cuenca. Palabras clave: Ecuador, política pública, sostenibilidad, acción colectiva, bienes comunes, economía del medio ambiente y recursos naturales.

  13. Silvana Flores, El Nuevo Cine Latinoamericano y su dimensión continental. Regionalismo e integración cinematográfica

    Directory of Open Access Journals (Sweden)

    Maia Gorostegui Valenti

    2014-08-01

    Full Text Available El estudio de Silvana Flores recorre dos décadas, los 60´y 70´, del cine latinoamericano. Observa y analiza las posibilidades de integración del mismo desde diversos puntos de posible contacto. Asímismo piensa los modos en que arte y política funcionaron hermanados, cómo y por qué.

  14. NUEVAS TERRITORIALIDADES DEL PROCESO DE INTEGRACIÓN REGIONAL

    Directory of Open Access Journals (Sweden)

    Alicia Laurín

    2008-12-01

    Full Text Available El proceso de formación de bloques regionales iniciado a mediados del siglo XX ha dado lugar al desarrollo de una práctica política denominada regionalismo; práctica asumida por la mayoría de los Estados del mundo a su tiempo, aunque comenzó a manifestarse inicialmente en Europa. La Unión Europea es el antecedente más acabado de regionalismo en tanto que Mercosur, aun es incipiente. En conjunto el bloque conforma una región, pero una región que se distingue de otras por sus componentes, por su estatus político, por la legitimidad de las acciones, por el alcance territorial de las políticas, entre las principales distinciones. Por tratarse de agrupaciones de Estados, el territorio, las fronteras y el poder político, intervienen en su conformación, ya que esos elementos son constitutivos del Estado. No obstante esta particularidad, ese proceso de regionalización esta dando lugar a una nueva territorialidad, porque la regionalización contiene un principio de integración y en conjunto ambos presuponen la existencia de políticas integracionistas o bien regionalistas. Estas políticas han cambiado. En esta presentación se explica por que constituyen nuevas territorialidades, a partir de la comparación del proceso de formación del Estado moderno y el de formación de bloques regionales, centrando el análisis en el territorio del Mercosur. Complementariamente se aborda la práctica regionalista subnacional de Argentina, asociada a la formación Mercosur. El territorio ampliado y compartido desde la perspectiva económica, es la variación más notable y sustancial asociado a esos procesos. También la creación de regiones subnacionales funcionales a los bloques regionales, tales como la región patagónica.

  15. ESTIMULACION DEL REMANENTE VISUAL DE NIÑOS DE BAJA VISION, CON UN PROGRAMA INFORMATICO Y SU EFECTO EN EL RENDIMIENTO ACADEMICO

    OpenAIRE

    Gloria Anabel Alcívar Pincay; Santo Domingo Bravo Loor; Jhonny Saulo Villafuerte Holguin

    2016-01-01

    El objetivo de este trabajo es potenciar el aprendizaje escolar de niños y niñas con deficiencia visual, apoyados en la aplicación del programa informático de estimulación visual que fue diseñado por los autores. Este estudio cuasi experimental cuenta con la participación de 30 niños y niñas entre 1 y 6 años de edad. La evaluación del remanente visual se realizó con una valoración clínica y la aplicación de los instrumentos EEV Barraga (1985) y VAP-CAP Blanksby (1993) en pretest y postest. Lo...

  16. La integración extrarregional como impulsadora del espacio centroamericano

    OpenAIRE

    Soto Acosta, Willy

    2011-01-01

    Este trabajo analiza la compleja participación de Costa Rica en tres áreas geográficas: su “casa” o espacio “natural”, Centroamérica; Europa, con el Acuerdo de Asociación; y la región Asia-Pacífico, con los tratados de libre comercio con China y con Singapur.El interés del artículo es doble: por una parte, estudiar cómo se alternan y se combinan en la posición costarricense tres patrones: aislacionismo, globalización de la regionalización, y regionalismo abierto. Por otra, determinar cómo el ...

  17. Identidad y frontera en el mundo atacameño del norte de Chile: Visiones críticas y reflexiones

    Directory of Open Access Journals (Sweden)

    Roberto Hernández

    2006-05-01

    Full Text Available Las comunidades indígenas atacameñas del norte de Chile, ubicadas en una región de frontera con Argentina, han tenido un interesante proceso de construcción de nuevas identidades como respuesta a los fenómenos de la modernización desde la década de los años 50, y posteriormente, ante la globalización, desde la década de los 80 hasta los primeros años del siglo XXI. Estos procesos han sido observados por los autores durante 35 años de trabajo antropológico sobre los cambios socioculturales ocurridos en dichas comunidades indígenas. Los resultados obtenidos permiten exponer una visión crítica y algunas reflexiones sobre la situación actual y las proyecciones a futuro de los atacameños en un mundo global que los ha invadido no solamente por medios de comunicación e información, sino también, por la presencia relevante de diversos agentes sociales públicos y privados, nacionales e internacionales, que han intervenido e intervienen actualmente, sobre sus recursos naturales, sus poblaciones, sus culturas locales y principalmente, sobre sus identidades étnicas. Se analiza la intervención de los antropólogos a partir de las investigaciones arqueológicas del padre Gustave Le Paige, como agentes que pretenden contribuir a la construcción de las identidades atacameñas, el impacto de los movimientos a escala mundial sobre reivindicaciones étnicas desde la década de los 80 con la presencia de ONGs y otros agentes invasores que intentan conducir u orientar sus procesos de resignificación étnica, y los fenómenos de interculturalidad que ha traído la globalización, especialmente, a través de los sistemas educativos. Se plantea finalmente, la necesidad de que los atacameños sean los conductores de los procesos de rescate y reconstrucción de sus identidades culturales en función del control de su futuro desarrollo en un mundo globalizado.

  18. Visiones desde dentro. La insurrección cubana a través del Diario de la Marina y Bohemia (1956-1958

    Directory of Open Access Journals (Sweden)

    Patricia Calvo GONZÁLEZ

    2014-12-01

    Full Text Available El artículo reflexiona sobre el papel el papel desempeñado por la prensa cubana durante la insurrección de finales de los años cincuenta. Para ello nos hemos centrado en el análisis de dos publicaciones específicas: Diario de la Marina y Bohemia. Su diferente periodicidad y línea editorial permiten obtener una visión global del funcionamiento mediático de la isla durante el levantamiento que finalmente derrocaría a Batista y daría paso a la Revolución Cubana.

  19. Social Perception of Hydrogen Technologies: The View of Spanish Stake holders; Percepcion Social de las Tecnologias del Hidrogeno. La Vision de los Stakeholders Espanoles

    Energy Technology Data Exchange (ETDEWEB)

    Ferri Anglada, S.

    2013-07-01

    This technical report presents an overview of the social perception and vision of a sample of Spanish stake holders on hydrogen technologies. The study is based on the implementation of a survey, combining both quantitative and qualitative data. An ad hoc electronic survey was design to collect views and perceptions on several key factors regarding this innovative energy alternative. The group of experts participating (N=130) in the study, comes mainly from research centers, universities and private companies. The survey addresses three major themes: expert views, social acceptability, and contextual factors of hydrogen technologies. The aim is to capture both the current and the future scene as viewed by the experts on hydrogen technologies, identifying key factors in terms of changes, uncertainties, obstacles and opportunities. The objective is to identify potential key features for the introduction, development, promotion, implementation, and large-scale deployment of a highly successful energy proposal in countries such as Iceland, one of the pioneers in base its economy on hydrogen technologies. To conclude, this report illustrates the positive engagement of a sample of Spanish stake holders towards hydrogen technologies that may prove vital in the transition towards the Hydrogen Economy in Spain. (Author)

  20. Visiones sobre ciencia de estudiantes universitarios en el contexto del laboratorio de Microbiología y su relación con la historia

    Directory of Open Access Journals (Sweden)

    María del Carmen Urzúa Hernández

    2015-12-01

    Full Text Available Las concepciones que poseen docentes y estudiantes como principales actores de la educación, cobran importancia por constituir un aspecto que puede detener o impulsar los cambios que se plantean actualmente en la educación superior. Pese a esto, se ha dado poca importancia al estudio de las concepciones epistemológicas de los estudiantes universitarios en el área de la educación en ciencias y en particular, de la importancia de la historia de la misma como un punto clave para comprender el trabajo de laboratorio. Incluso, aun cuando se destaca el trabajo en laboratorio como una parte importante en la enseñanza de las ciencias, no existen estudios que en este contexto indaguen las concepciones de los estudiantes. Es por ello que el presente trabajo explora las concepciones epistemológicas y su relación con la historia, de estudiantes universitarios de ciencias en un contexto de laboratorio. Los resultados obtenidos indican que las concepciones epistemológicas predominantes son positivistas. Estos resultados, generan interrogantes sobre las causas que generan este comportamiento de acuerdo con lo reportado en otras investigaciones ¿Al realizar su trabajo en el laboratorio el comportamiento  del estudiante es el reflejo de sus propias concepciones o de las del profesor? ¿Están ligadas las concepciones epistemológicas con las de aprendizaje?

  1. La sociedad civil mexicana y el reto de la justicia epistémica en el regionalismo contemporáneo

    NARCIS (Netherlands)

    2013-01-01

    markdownabstract__Introducción__ En respuesta a la pregunta fundamental de cuáles son los retos de la sociedad civil mexicana frente al multilateralismo del siglo xxi, en este artículo se argumentará que uno de los retos más urgentes que enfrenta la sociedad civil mexicana que busca incidir

  2. Visions and visioning in foresight activities

    DEFF Research Database (Denmark)

    Jørgensen, Michael Søgaard; Grosu, Dan

    2007-01-01

    and visioning processes in a number of foresight processes from different societal contexts. The analyses have been carried out as part of the work in the COST A22 network on foresight. A vision is here understood as a description of a desirable or preferable future, compared to a scenario which is understood...

  3. Control system for solar tracking based on artificial vision; Sistema de control para seguimiento solar basado en vision artificial

    Energy Technology Data Exchange (ETDEWEB)

    Pacheco Ramirez, Jesus Horacio; Anaya Perez, Maria Elena; Benitez Baltazar, Victor Hugo [Universidad de onora, Hermosillo, Sonora (Mexico)]. E-mail: jpacheco@industrial.uson.mx; meanaya@industrial.uson.mx; vbenitez@industrial.uson.mx

    2010-11-15

    This work shows how artificial vision feedback can be applied to control systems. The control is applied to a solar panel in order to track the sun position. The algorithms to calculate the position of the sun and the image processing are developed in LabView. The responses obtained from the control show that it is possible to use vision for a control scheme in closed loop. [Spanish] El presente trabajo muestra la manera en la cual un sistema de control puede ser retroalimentado mediante vision artificial. El control es aplicado en un panel solar para realizar el seguimiento del sol a lo largo del dia. Los algoritmos para calcular la posicion del sol y para el tratamiento de la imagen fueron desarrollados en LabView. Las respuestas obtenidas del control muestran que es posible utilizar vision para un esquema de control en lazo cerrado.

  4. Chemicals Industry Vision

    Energy Technology Data Exchange (ETDEWEB)

    none,

    1996-12-01

    Chemical industry leaders articulated a long-term vision for the industry, its markets, and its technology in the groundbreaking 1996 document Technology Vision 2020 - The U.S. Chemical Industry. (PDF 310 KB).

  5. Living with Low Vision

    Science.gov (United States)

    ... Life TIPS To Its Fullest LIVING WITH LOW VISION Savings Medical Bills A VARIETY OF EYE CONDITIONS, ... which occupational therapy practitioners help people with low vision to function at the highest possible level. • Prevent ...

  6. Cataract Vision Simulator

    Science.gov (United States)

    ... and Videos: What Do Cataracts Look Like? Cataract Vision Simulator Leer en Español: Simulador: Catarata Jun. 11, 2014 How do cataracts affect your vision? A cataract is a clouding of the eye's ...

  7. Vision - night blindness

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003039.htm Vision - night blindness To use the sharing features on ... page, please enable JavaScript. Night blindness is poor vision at night or in dim light. Considerations Night ...

  8. Visiones e ilusiones del tráfico ilícito de droga y la guerra contra las drogas en el siglo XX

    OpenAIRE

    Burke, Melvin

    2016-01-01

    Introducción Este artículo es un análisis político económico de la historia del tráfico ilícito de drogas y de la “guerra (cruzada) antidroga” en el siglo xx. Los Estados Unidos es el mayor demandante de drogas ilegales y también el iniciador de la así llamada “guerra” contra las drogas, las leyes y la cruzada diseñada ostensiblemente para eliminar el tráfico de drogas globalmente. Bolivia, Perú, Colombia y otros países de Latinoamérica son los mayores proveedores de drogas ilegales tales com...

  9. Blindness and vision loss

    Science.gov (United States)

    ... have low vision, you may have trouble driving, reading, or doing small tasks such as sewing or ... lost vision. You should never ignore vision loss, thinking it will get better. Contact an ... A.D.A.M.'s editorial policy , editorial process and privacy policy . A.D.A.M. is ...

  10. Comparing Active Vision Models

    NARCIS (Netherlands)

    Croon, G.C.H.E. de; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.

    2009-01-01

    Active vision models can simplify visual tasks, provided that they can select sensible actions given incoming sensory inputs. Many active vision models have been proposed, but a comparative evaluation of these models is lacking. We present a comparison of active vision models from two different

  11. Your Child's Vision

    Science.gov (United States)

    ... the Flu Vaccine? Eating Disorders Arrhythmias Your Child's Vision KidsHealth > For Parents > Your Child's Vision Print A A A What's in this article? ... La vista de su hijo Healthy eyes and vision are a critical part of kids' development. Their ...

  12. Comparing active vision models

    NARCIS (Netherlands)

    Croon, G.C.H.E. de; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.

    2009-01-01

    Active vision models can simplify visual tasks, provided that they can select sensible actions given incoming sensory inputs. Many active vision models have been proposed, but a comparative evaluation of these models is lacking. We present a comparison of active vision models from two different

  13. Robot Vision Library

    Science.gov (United States)

    Howard, Andrew B.; Ansar, Adnan I.; Litwin, Todd E.; Goldberg, Steven B.

    2009-01-01

    The JPL Robot Vision Library (JPLV) provides real-time robot vision algorithms for developers who are not vision specialists. The package includes algorithms for stereo ranging, visual odometry and unsurveyed camera calibration, and has unique support for very wideangle lenses

  14. Nationalism, regionalism and autonomy during the Second Republic | Nacionalismos, regionalismos y autonomía en la Segunda República

    Directory of Open Access Journals (Sweden)

    Justo Beramendi González

    2003-12-01

    Full Text Available The Second Republic introduced a number of innovations as a means of surmounting the main factors of social and political backwardness which had beset the country since the beginning of the liberal revolution in the Þ rst third of the nineteenth century. Prominent among these factors was the emergent plurality of different nations within the State, a phenomenon which had spread following the birth and rapid growth of Catalan and Basque nationalism, and to a much lesser extent, the weak Galician nationalist movement, as well as other marginal momentary upsurges. The aim of this article is to provide a succinct analysis of the changing relationship between the nationalist issue and the structure of the State during this period. | La Segunda República trajo consigo varias innovaciones que pretendían superar, en sentido modernizador, los principales factores de atraso social y político que había venido padeciendo el país desde los inicios de la revolución liberal en el primer tercio del siglo XIX. Entre estos factores, cabe destacar la emergente plurinacionalidad del Estado, que se había ido ensanchando con el nacimiento y rápido desarrollo de los nacionalismos catalán y vasco y, en mucha menor medida, del débil nacionalismo gallego y de otros brotes de momento marginales. El objeto de este artículo es analizar muy sintéticamente cómo evoluciona la relación entre cuestión nacional y estructura del Estado en este período.

  15. A child's vision.

    Science.gov (United States)

    Nye, Christina

    2014-06-01

    Implementing standard vision screening techniques in the primary care practice is the most effective means to detect children with potential vision problems at an age when the vision loss may be treatable. A critical period of vision development occurs in the first few weeks of life; thus, it is imperative that serious problems are detected at this time. Although it is not possible to quantitate an infant's vision, evaluating ocular health appropriately can mean the difference between sight and blindness and, in the case of retinoblastoma, life or death. Copyright © 2014 Elsevier Inc. All rights reserved.

  16. Visiones jesuíticas del Amazonas en la Colonia: de la misión como dominio espiritual a la exploración de las riquezas del río vistas como tesoro

    Directory of Open Access Journals (Sweden)

    Fernando Torres-Londoño

    2012-01-01

    Full Text Available Este artículo examina las elaboraciones textuales de jesuitas españoles y portugueses en relación con el río Amazonas durante los siglos XVII y XVIII. Los jesuitas de las misiones de Maynas, establecidas entre diversos tributarios del río Amazonas, entendieron sus misiones como la mejor forma de garantizar el dominio español en la región. El fracaso de este modelo aproximó a los misioneros de Maynas a la visión de los jesuitas portugueses del Pará, entre ellos el padre João Daniel, que vieron el río Amazonas como una gran fuente de riqueza, base para una ocupación sustentada en el poblamiento y la agricultura.

  17. Acquired color vision deficiency.

    Science.gov (United States)

    Simunovic, Matthew P

    2016-01-01

    Acquired color vision deficiency occurs as the result of ocular, neurologic, or systemic disease. A wide array of conditions may affect color vision, ranging from diseases of the ocular media through to pathology of the visual cortex. Traditionally, acquired color vision deficiency is considered a separate entity from congenital color vision deficiency, although emerging clinical and molecular genetic data would suggest a degree of overlap. We review the pathophysiology of acquired color vision deficiency, the data on its prevalence, theories for the preponderance of acquired S-mechanism (or tritan) deficiency, and discuss tests of color vision. We also briefly review the types of color vision deficiencies encountered in ocular disease, with an emphasis placed on larger or more detailed clinical investigations. Copyright © 2016 Elsevier Inc. All rights reserved.

  18. Geografia y salud, una vision de pasado y presente

    National Research Council Canada - National Science Library

    Pena, Jenny; Perdomo, Lina Maria; Cuartas, Daniel Elias

    2013-01-01

    ..., el determinismo de la naturaleza, la teoria de los miasmas, las topografias medicas, la geografia medica y actualmente lo que se ha denominado geografia de la salud. Estas visiones y marcos conceptuales no necesariamente se desarrollaron sincronicamente, por el contrario fueron el resultado de las rupturas propias del desarrollo de la sociedad occidental y de la sociedad del conocimiento.

  19. Del enfoque reduccionista al enfoque de sistema en la agricultura cubana: un necesario cambio de visión From the reductionist approach to the system approach in Cuban agriculture: a necessary change of vision

    Directory of Open Access Journals (Sweden)

    Hilda Machado

    2009-09-01

    Full Text Available Las transformaciones de la economía mundial en los últimos años, caracterizadas por la inestabilidad en el precio de los alimentos y los combustibles, repercuten en la economía cubana, afectada por el derrumbe del campo socialista, la inviabilidad del modelo económico implementado, el efecto devastador de los huracanes y el bloqueo de los Estados Unidos; ello ha obligado a realizar un proceso de cambios en la agricultura y en otros sectores de la sociedad, los cuales deben ir acompañados de una intensa preparación de las personas. Se necesita "cambiar a las personas que cambian las cosas, no las cosas para cambiar a las personas" con la inclusión y consideración de una alternativa que valore el mejoramiento de la cotidianidad de las localidades rurales asociadas a la producción agropecuaria. En este sentido existe una urgente necesidad de realizar acciones encaminadas a influir en un cambio de paradigma de agricultores y dirigentes, académicos e investigadores, que permita asimilar nuevos métodos de dirección y gestión del proceso productivo. Para ello se necesita una nueva visión de mundo, un nuevo modelo mental, cambiar valores, conceptos, enfoques y modelos que fundamenten un nuevo paradigma para moldear la forma de pensar y actuar de los actores sociales, económicos, políticos e institucionales relacionados con el proceso de desarrollo de la agricultura y la economía del país. En este artículo los autores pretenden realizar un acercamiento a la problemática que limita la capacidad innovadora de la empresa agropecuaria cubana, desde una perspectiva sistémica.The transformations of world economy in recent years, characterized by instability in the price of food and fuels, have repercussion on Cuban economy, affected by the collapse of the socialist countries, the inviability of the implemented economic model, the devastating effect of hurricanes and the blockade by the United States; this has compelled to perform a

  20. Mathematical leadership vision.

    Science.gov (United States)

    Hamburger, Y A

    2000-11-01

    This article is an analysis of a new type of leadership vision, the kind of vision that is becoming increasingly pervasive among leaders in the modern world. This vision appears to offer a new horizon, whereas, in fact it delivers to its target audience a finely tuned version of the already existing ambitions and aspirations of the target audience. The leader, with advisors, has examined the target audience and has used the results of extensive research and statistical methods concerning the group to form a picture of its members' lifestyles and values. On the basis of this information, the leader has built a "vision." The vision is intended to create an impression of a charismatic and transformational leader when, in fact, it is merely a response. The systemic, arithmetic, and statistical methods employed in this operation have led to the coining of the terms mathematical leader and mathematical vision.

  1. FPGA Vision Data Architecture

    Science.gov (United States)

    Morfopoulos, Arin C.; Pham, Thang D.

    2013-01-01

    JPL has produced a series of FPGA (field programmable gate array) vision algorithms that were written with custom interfaces to get data in and out of each vision module. Each module has unique requirements on the data interface, and further vision modules are continually being developed, each with their own custom interfaces. Each memory module had also been designed for direct access to memory or to another memory module.

  2. Vision-based interaction

    CERN Document Server

    Turk, Matthew

    2013-01-01

    In its early years, the field of computer vision was largely motivated by researchers seeking computational models of biological vision and solutions to practical problems in manufacturing, defense, and medicine. For the past two decades or so, there has been an increasing interest in computer vision as an input modality in the context of human-computer interaction. Such vision-based interaction can endow interactive systems with visual capabilities similar to those important to human-human interaction, in order to perceive non-verbal cues and incorporate this information in applications such

  3. Measuring Vision in Children

    Directory of Open Access Journals (Sweden)

    Petra Verweyen

    2004-01-01

    Full Text Available Measuring vision in children is a special skill requiring time, patience and understanding. Methods should be adapted to the child’s age, abilities, knowledge and experience. Young children are not able to describe their vision or explain their visual symptoms. Through observation, and with information from the mother or guardian, functional vision can be evaluated. While testing and observing children, an experienced assessor notices their responses to visual stimuli. These must be compared with the expected functional vision for children of the same age and abilities, so it is important to know the normal visual development.

  4. Military Vision Research Program

    Science.gov (United States)

    2012-10-01

    a result, optic nerve or brain injury can lead to permanent loss of vision or cognitive functions. Unfortunately, there are currently no medical...foveal lesion (macular hole). Vision Res. 39, 2421–2427 (1999). 5. Amsler, M. L’examen qualitatif de la fonction maculaire. Ophthalmologica 114, 248

  5. Computer vision for sports

    DEFF Research Database (Denmark)

    Thomas, Graham; Gade, Rikke; Moeslund, Thomas B.

    2017-01-01

    fixed to players or equipment is generally not possible. This provides a rich set of opportunities for the application of computer vision techniques to help the competitors, coaches and audience. This paper discusses a selection of current commercial applications that use computer vision for sports...

  6. New Term, New Vision?

    Science.gov (United States)

    Ravenhall, Mark

    2011-01-01

    During the affluent noughties it was sometimes said of government that it had "more visions than Mystic Meg and more pilots than British Airways". In 2011, the pilots, the pathfinders, the new initiatives are largely gone--implementation is the name of the game--but the visions remain. The latest one, as it affects adult learners, is in…

  7. Degas: Vision and Perception.

    Science.gov (United States)

    Kendall, Richard

    1988-01-01

    The art of Edgar Degas is discussed in relation to his impaired vision, including amblyopia, later blindness in one eye, corneal scarring, and photophobia. Examined are ways in which Degas compensated for vision problems, and dominant themes of his art such as the process of perception and spots of brilliant light. (Author/JDD)

  8. Jane Addams’ Social Vision

    DEFF Research Database (Denmark)

    Villadsen, Kaspar

    2018-01-01

    resonated with key tenets of social gospel theology, which imbued her texts with an overarching vision of humanity’s progressive history. It is suggested that Addams’ vision of a major transition in industrial society, one involving a BChristian renaissance^ and individuals’ transformation into Bsocialized...

  9. Copenhagen Energy Vision

    DEFF Research Database (Denmark)

    Mathiesen, Brian Vad; Lund, Rasmus Søgaard; Connolly, David

    The short-term goal for The City of Copenhagen is a CO2 neutral energy supply by the year 2025, and the long-term vision for Denmark is a 100% renewable energy (RE) supply by the year 2050. In this project, it is concluded that Copenhagen plays a key role in this transition. The long-term vision...

  10. Visions, Actions and Partnerships

    International Development Research Centre (IDRC) Digital Library (Canada)

    freelance

    Evaluation Association (AFREA). Comments on this document can be sent to ccaa@idrc.ca. Introduction. “Visions, actions, partnerships” (VAP) is presented as a participatory tool that can be used ... The tool embraces the philosophy of the Visions actions requests approach (Beaulieu et al,. 2002) based on the formulation of ...

  11. Panoramic stereo sphere vision

    Science.gov (United States)

    Feng, Weijia; Zhang, Baofeng; Röning, Juha; Zong, Xiaoning; Yi, Tian

    2013-01-01

    Conventional stereo vision systems have a small field of view (FOV) which limits their usefulness for certain applications. While panorama vision is able to "see" in all directions of the observation space, scene depth information is missed because of the mapping from 3D reference coordinates to 2D panoramic image. In this paper, we present an innovative vision system which builds by a special combined fish-eye lenses module, and is capable of producing 3D coordinate information from the whole global observation space and acquiring no blind area 360°×360° panoramic image simultaneously just using single vision equipment with one time static shooting. It is called Panoramic Stereo Sphere Vision (PSSV). We proposed the geometric model, mathematic model and parameters calibration method in this paper. Specifically, video surveillance, robotic autonomous navigation, virtual reality, driving assistance, multiple maneuvering target tracking, automatic mapping of environments and attitude estimation are some of the applications which will benefit from PSSV.

  12. Machine Vision Handbook

    CERN Document Server

    2012-01-01

    The automation of visual inspection is becoming more and more important in modern industry as a consistent, reliable means of judging the quality of raw materials and manufactured goods . The Machine Vision Handbook  equips the reader with the practical details required to engineer integrated mechanical-optical-electronic-software systems. Machine vision is first set in the context of basic information on light, natural vision, colour sensing and optics. The physical apparatus required for mechanized image capture – lenses, cameras, scanners and light sources – are discussed followed by detailed treatment of various image-processing methods including an introduction to the QT image processing system. QT is unique to this book, and provides an example of a practical machine vision system along with extensive libraries of useful commands, functions and images which can be implemented by the reader. The main text of the book is completed by studies of a wide variety of applications of machine vision in insp...

  13. Light Vision Color

    Science.gov (United States)

    Valberg, Arne

    2005-04-01

    Light Vision Color takes a well-balanced, interdisciplinary approach to our most important sensory system. The book successfully combines basics in vision sciences with recent developments from different areas such as neuroscience, biophysics, sensory psychology and philosophy. Originally published in 1998 this edition has been extensively revised and updated to include new chapters on clinical problems and eye diseases, low vision rehabilitation and the basic molecular biology and genetics of colour vision. Takes a broad interdisciplinary approach combining basics in vision sciences with the most recent developments in the area Includes an extensive list of technical terms and explanations to encourage student understanding Successfully brings together the most important areas of the subject in to one volume

  14. Taking Care of Your Vision

    Science.gov (United States)

    ... Parents - or Other Adults Taking Care of Your Vision KidsHealth > For Teens > Taking Care of Your Vision ... are important parts of keeping your peepers perfect. Vision Basics One of the best things you can ...

  15. Literature and information in vision care and vision science.

    Science.gov (United States)

    Goss, David A

    2008-11-01

    The explosion of information in vision care and vision science makes keeping up with the literature and information in the field challenging. This report examines the nature of literature and information in vision care and vision science. A variety of topics are discussed, including the general nature of scientific and clinical journals, journals in vision science and vision care, resources available for searches for literature and information, and issues involved in the evaluation of journals and other information sources. Aspects of the application of citation analysis to vision care and vision science are reviewed, and a new citation analysis of a leading textbook in vision care (Borish's Clinical Refraction) is presented. This report is directed toward anyone who wants to be more informed about the literature of vision care and vision science, whether they are students, clinicians, educators, or librarians.

  16. Development of Binocular Vision

    Directory of Open Access Journals (Sweden)

    Muhammad Syauqie

    2014-01-01

    Full Text Available AbstrakPenglihatan binokular secara harfiah berarti penglihatan dengan 2 mata dan dengan adanya penglihatan binokular, kita dapat melihat dunia dalam 3 dimensi meskipun bayangan yang jatuh pada kedua retina merupakan bayangan 2 dimensi. Penglihatan binokular juga memberikan beberapa keuntungan berupa ketajaman visual, kontras sensitivitas, dan lapangan pandang penglihatan yang lebih baik dibandingkan dengan penglihatan monokular. Penglihatan binokular normal memerlukan aksis visual yang jernih, fusi sensoris, dan fusi motoris. Pada manusia, periode sensitif dari perkembangan penglihatan binokular dimulai pada usia sekitar 3 bulan, mencapai puncaknya pada usia 1 hingga 3 tahun, telah berkembang sempurna pada usia 4 tahun dan secara perlahan menurun hingga berhenti pada usia 9 tahun. Berbagai hambatan, berupa hambatan sensoris, motoris,dan sentral, dalam jalur refleks sangat mungkin akan menghambat perkembangan dari penglihatan binokular terutama pada periode sensitif sewaktu 2 tahun pertama kehidupan.Kata kunci: penglihatan binokular, perkembangan, fusi, stereopsisAbstractBinocular vision literally means vision with two eyes and with binocular vision, we can see the world in three dimensions even though the images that fall on both of the retina were the 2-dimensional images. Binocular vision also provide some advantages included improved visual acuity, contrast sensitivity, and visual field compared with monocular vision. Normal binocular vision requires a clear visual axis, sensory fusion, and motoric fusion. In human, the sensitive period of binocular vision development began at around 3 months of age, reaching its peak at the age of 1 to 3 years, had developed completely at the age of 4 years and gradually declined until it stops at the age of 9 years. Various obstacles, such as sensory, motoric, and central obstacles, within the reflex pathway were very likely to inhibited the development of binocular vision, especially in sensitive period

  17. Stereo Vision Inside Tire

    Science.gov (United States)

    2015-08-21

    1 Stereo Vision Inside Tire P.S. Els C.M. Becker University of Pretoria W911NF-14-1-0590 Final... Stereo Vision Inside Tire 5a. CONTRACT NUMBER W911NF-14-1-0590 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Prof PS Els CM...on the development of a stereo vision system that can be mounted inside a rolling tire, known as T2-CAM for Tire-Terrain CAMera. The T2-CAM system

  18. Stereo vision and strabismus.

    Science.gov (United States)

    Read, J C A

    2015-02-01

    Binocular stereopsis, or stereo vision, is the ability to derive information about how far away objects are, based solely on the relative positions of the object in the two eyes. It depends on both sensory and motor abilities. In this review, I briefly outline some of the neuronal mechanisms supporting stereo vision, and discuss how these are disrupted in strabismus. I explain, in some detail, current methods of assessing stereo vision and their pros and cons. Finally, I review the evidence supporting the clinical importance of such measurements.

  19. Anchoring visions in organizations

    DEFF Research Database (Denmark)

    Simonsen, Jesper

    1999-01-01

    as by those involved in the actual implementation. A model depicting a recent trend within systems development is presented: Organizations rely on purchasing generic software products and/or software development outsourced to external contractors. A contemporary method for participatory design, where......This paper introduces the term 'anchoring' within systems development: Visions, developed through early systems design within an organization, need to be deeply rooted in the organization. A vision's rationale needs to be understood by those who decide if the vision should be implemented as well...

  20. Artificial Vision: Vision of a Newcomer

    Science.gov (United States)

    Fujikado, Takashi; Sawai, Hajime; Tano, Yasuo

    The Japanese Consortium for an Artificial Retina has developed a new stimulating method named Suprachoroidal-Transretinal Stimulation (STS). Using STS, electrically evoked potentials (EEPs) were effectively elicited in Royal College of Surgeons (RCS) rats and in rabbits and cats with normal vision, using relatively small stimulus currents, such that the spatial resolution appeared to be adequate for a visual prosthesis. The histological analysis showed no damage to the rabbit retina when electrical currents sufficient to elicit distinct EEPs were applied. It was also shown that transcorneal electrical stimulation (TES) to the retina prevented the death of retinal ganglion cells (RGCs). STS, which is less invasive than other retinal prostheses, could be one choice to achieve artificial vision, and the optimal parameters of electrical stimulation may also be effective for the neuroprotection of residual RGCs.

  1. delta-vision

    Data.gov (United States)

    California Department of Resources — Delta Vision is intended to identify a strategy for managing the Sacramento-San Joaquin Delta as a sustainable ecosystem that would continue to support environmental...

  2. Computer Vision Syndrome.

    Science.gov (United States)

    Randolph, Susan A

    2017-07-01

    With the increased use of electronic devices with visual displays, computer vision syndrome is becoming a major public health issue. Improving the visual status of workers using computers results in greater productivity in the workplace and improved visual comfort.

  3. Ohio's Comprehensive Vision Project

    Science.gov (United States)

    Bunner, Richard T.

    1973-01-01

    A vision screening program in seven Ohio counties tested 3,261 preschool children and 44,885 school age children for problems of distance visual acuity, muscle balance, and observable eye problems. (DB)

  4. What Is Low Vision?

    Science.gov (United States)

    ... Everyday Living Roadmap to Living with Vision Loss Essential Skills Helpful Products and Technology Home Modification Recreation ... tasks easier, such as clocks with larger numbers, writing guides, or black and white cutting boards. Low ...

  5. Home vision tests

    Science.gov (United States)

    ... or eye disease and you should have a professional eye examination. Amsler grid test: If the grid appears distorted or broken, there may be a problem with the retina . Distance vision test: If you do not read the ...

  6. Synthetic Vision Systems

    Science.gov (United States)

    Prinzel, L.J.; Kramer, L.J.

    2009-01-01

    A synthetic vision system is an aircraft cockpit display technology that presents the visual environment external to the aircraft using computer-generated imagery in a manner analogous to how it would appear to the pilot if forward visibility were not restricted. The purpose of this chapter is to review the state of synthetic vision systems, and discuss selected human factors issues that should be considered when designing such displays.

  7. Leadership and vision

    OpenAIRE

    Rogers, Anita; Reynolds, Jill

    2003-01-01

    �Leadership and vision' is the subject of Chapter 3 and Rogers and Reynolds look at how managers can encourage leadership from other people, whether in their team, the organisation or in collaborative work with different agencies. They explore leadership style, and the extent to which managers can and should adapt their personal style to the differing needs of situations and people. Frontline managers may not always feel that they have much opportunity to influence the grander vision and st...

  8. Experiencing space without vision

    OpenAIRE

    Evyapan, Naz A. G. Z.

    1997-01-01

    Ankara : Bilkent Univ., Department of Interior Architecture and Environmental Design and Institute of Fine Arts, 1997. Thesis (Master's) -- Bilkent University, 1997. Includes bibliographical references. In this study, the human body without vision, and its relation with the surrounding space, is examined. Towards this end, firstly space and the human body are briefly discussed. the sense modalities apart from vision, and the development of spatial cognition for the blind and visually...

  9. The vision trap.

    Science.gov (United States)

    Langeler, G H

    1992-01-01

    At Mentor Graphics Corporation, Gerry Langeler was the executive responsible for vision, and vision, he discovered, has the power to weaken a strong company. Mentor helped to invent design-automation electronics in the early 1980s, and by the end of the decade, it dominated the industry. In its early days, fighting to survive, Mentor's motto was Build Something People Will Buy. Then when clear competition emerged in the form of Daisy Systems, a startup that initially outsold Mentor, the watchword became Beat Daisy. Both "visions" were pragmatic and immediate. They gave Mentor a sense of purpose as it developed its products and gathered momentum. Once Daisy was beaten, however, company vision began to self-inflate. As Mentor grew more and more successful, Langeler formulated vision statements that were more and more ambitious, grand, and inspirational. The company traded its gritty determination to survive for a dream of future glory. The once explicit call for effective action became a fervid cry for abstract perfection. The first step was Six Boxes, a transitional vision that combined goals for success in six business areas with grandiose plans to compete with IBM at the level of billion-dollar revenues. From there, vision stepped up to the 10X Imperative, a quality-improvement program that focused on arbitrary goals and measures that were, in fact, beyond the company's control. The last escalation came when Mentor Graphics decided to Change the Way the World Designs. The company had stopped making product and was making poetry. Finally, in 1991, after six years of increasing self-infatuation, Mentor hit a wall of decreasing indicators. Langeler, who had long since begun to doubt the value of abstract visions, reinstated Build Something People Will Buy. And Mentor was back to basics, a sense of purpose back to its workplace.

  10. IDA's Energy Vision 2050

    DEFF Research Database (Denmark)

    Mathiesen, Brian Vad; Lund, Henrik; Hansen, Kenneth

    IDA’s Energy Vision 2050 provides a Smart Energy System strategy for a 100% renewable Denmark in 2050. The vision presented should not be regarded as the only option in 2050 but as one scenario out of several possibilities. With this vision the Danish Society of Engineers, IDA, presents its third...... contribution for an energy strategy for Denmark. The IDA’s Energy Plan 2030 was prepared in 2006 and IDA’s Climate Plan was prepared in 2009. IDA’s Energy Vision 2050 is developed for IDA by representatives from The Society of Engineers and by a group of researchers at Aalborg University. It is based on state......-of-the-art knowledge about how low cost energy systems can be designed while also focusing on long-term resource efficiency. The Energy Vision 2050 has the ambition to focus on all parts of the energy system rather than single technologies, but to have an approach in which all sectors are integrated. While Denmark...

  11. Colour, vision and ergonomics.

    Science.gov (United States)

    Pinheiro, Cristina; da Silva, Fernando Moreira

    2012-01-01

    This paper is based on a research project - Visual Communication and Inclusive Design-Colour, Legibility and Aged Vision, developed at the Faculty of Architecture of Lisbon. The research has the aim of determining specific design principles to be applied to visual communication design (printed) objects, in order to be easily read and perceived by all. This study target group was composed by a selection of socially active individuals, between 55 and 80 years, and we used cultural events posters as objects of study and observation. The main objective is to overlap the study of areas such as colour, vision, older people's colour vision, ergonomics, chromatic contrasts, typography and legibility. In the end we will produce a manual with guidelines and information to apply scientific knowledge into the communication design projectual practice. Within the normal aging process, visual functions gradually decline; the quality of vision worsens, colour vision and contrast sensitivity are also affected. As people's needs change along with age, design should help people and communities, and improve life quality in the present. Applying principles of visually accessible design and ergonomics, the printed design objects, (or interior spaces, urban environments, products, signage and all kinds of visually information) will be effective, easier on everyone's eyes not only for visually impaired people but also for all of us as we age.

  12. Periodontium bestows vision!!

    Directory of Open Access Journals (Sweden)

    Minkle Gulati

    2016-01-01

    Full Text Available The role of periodontium in supporting the tooth structures is well-known. However, less is known about its contribution to the field of ophthalmology. Corneal diseases are among major causes of blindness affecting millions of people worldwide, for which synthetic keratoprosthesis was considered the last resort to restore vision. Yet, these synthetic keratoprosthesis suffered from serious limitations, especially the foreign body reactions invoked by them resulting in extrusion of the whole prosthesis from the eye. To overcome these shortcomings, an autologous osteo-odonto keratoprosthesis utilizing intraoral entities was introduced that could positively restore vision even in cases of severely damaged eyes. The successful functioning of this prosthesis, however, predominantly depended on the presence of a healthy periodontium for grafting. Therefore, the following short communication aims to acknowledge this lesser-known role of the periodontium and other oral structures in bestowing vision to the blind patients.

  13. Overview of sports vision

    Science.gov (United States)

    Moore, Linda A.; Ferreira, Jannie T.

    2003-03-01

    Sports vision encompasses the visual assessment and provision of sports-specific visual performance enhancement and ocular protection for athletes of all ages, genders and levels of participation. In recent years, sports vision has been identified as one of the key performance indicators in sport. It is built on four main cornerstones: corrective eyewear, protective eyewear, visual skills enhancement and performance enhancement. Although clinically well established in the US, it is still a relatively new area of optometric specialisation elsewhere in the world and is gaining increasing popularity with eyecare practitioners and researchers. This research is often multi-disciplinary and involves input from a variety of subject disciplines, mainly those of optometry, medicine, physiology, psychology, physics, chemistry, computer science and engineering. Collaborative research projects are currently underway between staff of the Schools of Physics and Computing (DIT) and the Academy of Sports Vision (RAU).

  14. Representing vision and blindness.

    Science.gov (United States)

    Ray, Patrick L; Cox, Alexander P; Jensen, Mark; Allen, Travis; Duncan, William; Diehl, Alexander D

    2016-01-01

    There have been relatively few attempts to represent vision or blindness ontologically. This is unsurprising as the related phenomena of sight and blindness are difficult to represent ontologically for a variety of reasons. Blindness has escaped ontological capture at least in part because: blindness or the employment of the term 'blindness' seems to vary from context to context, blindness can present in a myriad of types and degrees, and there is no precedent for representing complex phenomena such as blindness. We explore current attempts to represent vision or blindness, and show how these attempts fail at representing subtypes of blindness (viz., color blindness, flash blindness, and inattentional blindness). We examine the results found through a review of current attempts and identify where they have failed. By analyzing our test cases of different types of blindness along with the strengths and weaknesses of previous attempts, we have identified the general features of blindness and vision. We propose an ontological solution to represent vision and blindness, which capitalizes on resources afforded to one who utilizes the Basic Formal Ontology as an upper-level ontology. The solution we propose here involves specifying the trigger conditions of a disposition as well as the processes that realize that disposition. Once these are specified we can characterize vision as a function that is realized by certain (in this case) biological processes under a range of triggering conditions. When the range of conditions under which the processes can be realized are reduced beyond a certain threshold, we are able to say that blindness is present. We characterize vision as a function that is realized as a seeing process and blindness as a reduction in the conditions under which the sight function is realized. This solution is desirable because it leverages current features of a major upper-level ontology, accurately captures the phenomenon of blindness, and can be

  15. Binocular vision in glaucoma.

    Science.gov (United States)

    Reche-Sainz, J A; Gómez de Liaño, R; Toledano-Fernández, N; García-Sánchez, J

    2013-05-01

    To describe the possible impairment of binocular vision in primary open angle glaucoma (POAG) patients. A cross-sectional study was conducted on 58 glaucoma patients, 76 ocular hypertensives and 82 normal subjects. They were examined with a battery of binocular tests consisting of the measurement of phoria angles, amplitudes of fusion (AF), near point of convergence (NPC) assessment, an evaluation of suppression (Worth test), stereoacuity according to Titmus, and TNO tests. The patients with glaucoma showed significantly increased phoria angles, especially in near vision, compared with the ocular hypertensives and controls (P=.000). AF were reduced mainly in near distances compared to hypertensives and controls (P=.000). The NPC of glaucoma was higher than the other two groups (P=.000). No differences were found in the near-distance suppression test between the three groups (P=.682), but there were differences in the distance vision of patients with glaucoma compared to hypertensives (OR=3.867, 95% CI; 1.260-11.862; P=.008) and controls (OR= 5.831, 95% CI; 2.229-15.252; P=.000). The stereoacuity of patients with glaucoma was reduced in both tests (P=.001). POAG is mostly associated with, an increased exophoria in near vision, a decreased AF in near vision, a far-distance NPC, central suppression in far-vision, and a loss of stereoacuity. These changes do not seem to appear early as they were not observed in hypertensive patients versus controls. Copyright © 2011 Sociedad Española de Oftalmología. Published by Elsevier España, S.L. All rights reserved.

  16. Telescopic vision contact lens

    Science.gov (United States)

    Tremblay, Eric J.; Beer, R. Dirk; Arianpour, Ashkan; Ford, Joseph E.

    2011-03-01

    We present the concept, optical design, and first proof of principle experimental results for a telescopic contact lens intended to become a visual aid for age-related macular degeneration (AMD), providing magnification to the user without surgery or external head-mounted optics. Our contact lens optical system can provide a combination of telescopic and non-magnified vision through two independent optical paths through the contact lens. The magnified optical path incorporates a telescopic arrangement of positive and negative annular concentric reflectors to achieve 2.8x - 3x magnification on the eye, while light passing through a central clear aperture provides unmagnified vision.

  17. En vision for CBS?

    DEFF Research Database (Denmark)

    Thyssen, Ole

    2015-01-01

    Kommentar. CBS’ ry for at være et moderne Business University med forskere fra hele verden og forskningsmæssig dynamik faldt på gulvet. Udfordringen er nu at få samlet CBS forskere om en fælles vision.......Kommentar. CBS’ ry for at være et moderne Business University med forskere fra hele verden og forskningsmæssig dynamik faldt på gulvet. Udfordringen er nu at få samlet CBS forskere om en fælles vision....

  18. [Hallucinations in vision impairment].

    Science.gov (United States)

    Singh, Amardeep; Sørensen, Torben Lykke

    2011-01-03

    A 79-year-old female had vision loss due to wet age-related macular degeneration, corneal endothelial dystrophy with corneal oedema and cataract. She subsequently began hallucinating and saw imaginary vehicles, bridges, trees and houses on the road while driving (Charles Bonnet syndrome (CBS)). The hallucinations caused anxiety and distress. Her general practitioner started anti-anxiety therapy with no significant effect. Anti-vascular endothelial growth factor therapy and a corneal transplantation improved her visual acuity, decreased the frequency of hallucinations and resulted in complete remission of the her anxiety. Thus, vision-improving treatment of eye disease may decrease CBS-associated anxiety.

  19. Demokratiske stemmer og visioner

    DEFF Research Database (Denmark)

    Petersen, Hanne

    2014-01-01

    Artiklen knytter den amerikanske digter Walt Whitmans demokratiske og litterære visioner i det 19. århundrede til den svenske stemmeretsforkæmper Elin Wägners overvejelser over køn, krig og demokrati i det 20. århundrede. Den slutter med referencer til "Democracy Incorporated" fra 2008 af den ame...... amerikanske professor i politisk filosofi, Sheldon Wolin, der beskriver totalitarianismens spejlvending og demokratiets perversion i en amerikansk sammenhæng. Demokratiets overlevelse kan afhænge af stemmer og visioner fra uventede steder....

  20. Low vision services for vision rehabilitation in the United Kingdom

    OpenAIRE

    Culham, L E; Ryan, B.; Jackson, A.J.; Hill, A R; Jones, B; Miles, C.; Young, J. A.; Bunce, C; Bird, A C

    2002-01-01

    Aim: Little is known about the distribution and methods of delivery of low vision services across the United Kingdom. The purpose of this study was to determine the type and location of low vision services within the UK.

  1. Effects of visual skills training, vision coaching and sports vision ...

    African Journals Online (AJOL)

    The purpose of this study was to determine the effectiveness of three different approaches to improving sports performance through improvements in “sports vision:” (1) a visual skills training programme, (2) traditional vision coaching sessions, and (3) a multi-disciplinary approach identified as sports vision dynamics.

  2. Field of Vision - Vehicles

    Science.gov (United States)

    2017-05-11

    observer to the ground for a 95th percentile male and a 5th percentile female . The dimensions of the vehicle should also be taken. 4. TEST...field of vision Gd ground distance MIL-STD Military Standard SAE Society of Automotive Engineers Sd stadia rod distance from the center of the...

  3. Motion Control with Vision

    NARCIS (Netherlands)

    Ir Dick van Schenk Brill; Ir Peter Boots

    2001-01-01

    This paper describes the work that is done by a group of I3 students at Philips CFT in Eindhoven, Netherlands. I3 is an initiative of Fontys University of Professional Education also located in Eindhoven. The work focuses on the use of computer vision in motion control. Experiments are done with

  4. Vision: The Leadership Difference.

    Science.gov (United States)

    Browne, Elise R.

    1986-01-01

    The author states that all types of leaders share four qualities: (1) intensity of vision, (2) ability to communicate agenda, (3) conviction in their beliefs, and (4) positive self-regard. She interviews Warren Bennis, an author on this subject, about the differences between business and volunteer leaders. (CH)

  5. Naval Aviation Vision

    Science.gov (United States)

    2012-01-01

    modeling and simulation, distributed testing, and ground testing. The fully instrumented and integrated Atlantic Test Range supports cradle -to-grave...be taking “ cats ” and “traps” for many years to come. Naval aviatioN visioN • JaNuary 2012109 Sergeant Jesus J. Castro Title: KC-130J Super Hercules

  6. Vision: Essential Scaffolding

    Science.gov (United States)

    Murphy, Joseph; Torre, Daniela

    2015-01-01

    Few concepts are more noted in the leadership effects research than vision. It is a cardinal element in the school improvement equation as well. Yet, it remains one of the least well-specified components of that algorithm. Based on a comprehensive review of the research on effective leadership and school improvement from 1995 to 2012, we bring…

  7. A Colour Vision Experiment.

    Science.gov (United States)

    Lovett, David; Hore, Kevin

    1991-01-01

    The model for color vision put forward by Edwin Land is explained. The aspects of the theory that can be demonstrated within the classroom are described. A random arrangement of straight-edged colored areas mounted on a screen, called a Mondrian, projectors, and a computer are used to calculate reflectance. (KR)

  8. A shared vision.

    Science.gov (United States)

    Hogan, Brigid

    2007-12-01

    One of today's most powerful technologies in biomedical research--the creation of mutant mice by gene targeting in embryonic stem (ES) cells--was finally celebrated in this year's Nobel Prize in Medicine. The history of how ES cells were first discovered and genetically manipulated highlights the importance of collaboration among scientists from different backgrounds with a shared vision.

  9. Network Science Experimentation Vision

    Science.gov (United States)

    2015-09-01

    capabilities and performance of a heterogeneous collection of interdependent networks . This report outlines and discusses an experimentation vision that...has been shown to depend upon the capabilities and performance of a heterogeneous collection of interdependent networks . Such a collection of networks ...well as tactical military networks . In particular, wireless tactical networks can be simulated with high fidelity, using off the shelf simulation

  10. Direct vision internal urethrotomy

    DEFF Research Database (Denmark)

    Jakobsen, H; Willumsen, H; Søndergaard Jensen, L

    1984-01-01

    During a five-year period, direct vision internal urethrotomy was used for the treatment of urethral strictures in 34 men. After the primary operation the patients were followed for an average period of 29 months (range 3-73 months). During this period 53% of the patients were found to have one...

  11. KiWi Vision

    DEFF Research Database (Denmark)

    Schaffert, Sebastian; Bry, Francois; Dolog, Peter

    This deliverable describes the common vision of the KiWi project, ranging from motivation over use cases and usage scenarios to user interaction, system architecture and technologies, and the research that is performed as part of the project. The deliverable is intended for a wide audience to give...

  12. Tectonic vision in architecture

    DEFF Research Database (Denmark)

    Beim, Anne

    1999-01-01

    By introducing the concept; Tectonic Visions, The Dissertation discusses the interrelationship between the basic idea, the form principles, the choice of building technology and constructive structures within a given building. Includes Mies van der Rohe, Le Corbusier, Eames, Jorn Utzon, Louis Kahn...

  13. The Photodynamics of Vision

    Indian Academy of Sciences (India)

    rruion is one of our primary senses. It is the ability to identify, process and interpret what is seen by the eye. It is a powerful mechanism for parallel processing of information received at the speed of light from near and remote scenes. The volume of information received by vision is certainly more than that re- ceived by our ...

  14. Vision eller verklighet?

    DEFF Research Database (Denmark)

    Andersson, Jonas E

    2012-01-01

    and drawing analysis. This study suggests that there is a gap between reality and visions. Despite research-based guidelines, the architecture of contemporary residential care homes relies on universal qualities that are associated with the home environment rather than with the particular conditions...

  15. MARR: active vision model

    Science.gov (United States)

    Podladchikova, Lubov N.; Gusakova, Valentina I.; Shaposhnikov, Dmitry G.; Faure, Alain; Golovan, Alexander V.; Shevtsova, Natalia A.

    1997-09-01

    Earlier, the biologically plausible active vision, model for multiresolutional attentional representation and recognition (MARR) has been developed. The model is based on the scanpath theory of Noton and Stark and provides invariant recognition of gray-level images. In the present paper, the algorithm of automatic image viewing trajectory formation in the MARR model, the results of psychophysical experiments, and possible applications of the model are considered. Algorithm of automatic image viewing trajectory formation is based on imitation of the scanpath formed by operator. Several propositions about possible mechanisms for a consecutive selection of fixation points in human visual perception inspired by computer simulation results and known psychophysical data have been tested and confirmed in our psychophysical experiments. In particular, we have found that gaze switch may be directed (1) to a peripheral part of the vision field which contains an edge oriented orthogonally to the edge in the point of fixation, and (2) to a peripheral part of the vision field containing crossing edges. Our experimental results have been used to optimize automatic algorithm of image viewing in the MARR model. The modified model demonstrates an ability to recognize complex real world images invariantly with respect to scale, shift, rotation, illumination conditions, and, in part, to point of view and can be used to solve some robot vision tasks.

  16. Visions That Blind.

    Science.gov (United States)

    Fullan, Michael G.

    1992-01-01

    Overattachment to particular innovations or overreliance on a charismatic leader can restrict consideration of alternatives and produce short-term gains or superficial solutions. To encourage lasting school improvement, principals should build collaborative cultures instead of imposing their own visions or change agendas. A sidebar illustrates a…

  17. Lighting For Color Vision

    Science.gov (United States)

    Worthey, James A.

    1988-02-01

    Some results concerning lighting for human color vision can be generalized to robot color vision. These results depend mainly on the spectral sensitivities of the color channels, and their interaction with the spectral power distribution of the light. In humans, the spectral sensitivities of the R and G receptors show a large overlap, while that of the B receptors overlaps little with the other two. A color vision model that proves useful for lighting work---and which also models many features of human vision---is one in which the "opponent color" signals are T = R - G, and D = B - R. That is, a "red minus green" signal comes from the receptors with greatest spectral overlap, while a "blue minus yellow" signal comes from the two with the least overlap. Using this model, we find that many common light sources attenuate red-green contrasts, relative to daylight, while special lights can enhance red-green contrast slightly. When lighting changes cannot be avoided, the eye has some ability to compensate for them. In most models of "color constancy," only the light's color guides the eye's adjustment, so a lighting-induced loss of color contrast is not counteracted. Also, no constancy mechanism can overcome metamerism---the effect of unseen spectral differences between objects. However, we can calculate the extent to which a particular lighting change will reveal metamerism. I am not necessarily arguing for opponent processing within robots, but only presenting results based on opponent calculations.

  18. What is vision Hampton Roads?

    Science.gov (United States)

    2010-01-01

    What is Vision Hampton Roads? : Vision Hampton Roads is... : A regionwide economic development strategy based on the collective strengths of all : localities of Hampton Roads, created with the input of business, academia, nonprofits, : government,...

  19. Object tracking with stereo vision

    Science.gov (United States)

    Huber, Eric

    1994-01-01

    A real-time active stereo vision system incorporating gaze control and task directed vision is described. Emphasis is placed on object tracking and object size and shape determination. Techniques include motion-centroid tracking, depth tracking, and contour tracking.

  20. When someone has low vision

    Directory of Open Access Journals (Sweden)

    Clare Gilbert

    2012-01-01

    Full Text Available As clinicians, being faced with a patient whose vision we cannot improve any further can make us feel like a failure. However, there are many ways to help such a person with low vision.

  1. Vision in water.

    Science.gov (United States)

    Atchison, David A; Valentine, Emma L; Gibson, Georgina; Thomas, Hannah R; Oh, Sera; Pyo, Young Ah; Lacherez, Philippe; Mathur, Ankit

    2013-09-06

    The purpose of this study is to determine visual performance in water, including the influence of pupil size. The water environment was simulated by placing goggles filled with saline in front of the eyes with apertures placed at the front of the goggles. Correction factors were determined for the different magnification under this condition in order to estimate vision in water. Experiments were conducted on letter visual acuity (seven participants), grating resolution (eight participants), and grating contrast sensitivity (one participant). For letter acuity, mean loss of vision in water, compared to corrected vision in air, varied between 1.1 log min of arc resolution (logMAR) for a 1 mm aperture to 2.2 logMAR for a 7 mm aperture. The vision in min of arc was described well by a linear relationship with pupil size. For grating acuity, mean loss varied between 1.1 logMAR for a 2 mm aperture to 1.2 logMAR for a 6 mm aperture. Contrast sensitivity for a 2 mm aperture deteriorated as spatial frequency increased with a 2 log unit loss by 3 c/°. Superimposed on this deterioration were depressions (notches) in sensitivity with the first three notches occurring at 0.45, 0.8, and 1.3 c/° with estimates for water of 0.39, 0.70, and 1.13 c/°. In conclusion, vision in water is poor. It becomes worse as pupil size increases, but the effects are much more marked for letter targets than for grating targets.

  2. Registration of Vision 30 Wheat

    Science.gov (United States)

    Vision 30’ (Reg. No. CV-1062, PI 661153) hard red winter (HRW) wheat (Triticum aestivum L.) was developed and tested as VA06HRW-49 and released by the Virginia Agricultural Experiment Station in March 2010. Vision 30 was derived from the cross 92PAN1#33/VA97W-414. Vision 30 is high yielding, awned,...

  3. Análisis estructural de la red económica de exportaciones e importaciones de la Alianza del Pacífico y el Mercado Común del Sur

    Directory of Open Access Journals (Sweden)

    Fernando Lámbarry Vilchis

    2016-10-01

    Full Text Available Diversos tratados de integración han ocurrido en la historia de Latinoamérica. El más reciente de ellos es la Alianza del Pacífico, que representa una oportunidad de unificación regional con el Mercado Común del Sur. Los estudios sobre este tema e intercambios comerciales son recurrentes en integraciones con estructuras centrales y bloques de países en la periferia que fomentan asimetrías regionales. Consecuente con esto, el objetivo de este estudio es analizar estructuralmente la centralidad del intercambio económico comercial de ambos bloques y de una eventual integración. El método de investigación implicó calcular métricas de centralidad fundamentadas en la teoría de redes. A partir de lo anterior, se concluye que los bloques tienen una estructura estratificada y que una eventual integración eficaz debe transitar hacia un regionalismo estratégico.

  4. Vision as Adaptive Epistemology

    CERN Document Server

    Licata, Ignazio

    2010-01-01

    In the last years the debate on complexity has been developing and developing in transdisciplinary way to meet the need of explanation for highly organized collective behaviors and sophisticated hierarchical arrangements in physical, biological, cognitive and social systems. Unfortunately, no clear definition has been reached, so complexity appears like an anti-reductionist paradigm in search of a theory. In our short survey we aim to suggest a clarification in relation to the notions of computational and intrinsic emergence, and to show how the latter is deeply connected to the new Logical Openness Theory, an original extension of Godel theorems to the model theory. The epistemological scenario we are going to make use of is that of the theory of vision, a particularly instructive one. Vision is an element of our primordial relationship with the world;consequently it comes as no surprise that carefully taking into consideration the processes of visual perception can lead us straight to some significant quest...

  5. Realisering af Vision 2020

    DEFF Research Database (Denmark)

    Bertelsen, Niels Haldor; Hansen, Ernst Jan de Place

    Repræsentanter for byggesektoren har på 11 dialogmøder drøftet Erhvervs- og Byggestyrelsens "Vision 2020 - Byggeri med mening". Drøftelserne førte til formulering af en lang række initiativforslag til realisering af visionen. Den mest centrale udfordring bliver at reducere fejl og mangler i...... byggeriet. Branchen lægger også vægt på, at styringen af Vision 2020s reaisering sker i byggesektoren. Initiativforslagene er i rapporten samlet under 3 hovedområder. Det første hovedområde lægger vægt på bygningerne, brugerbehov og det globale samfund. Det andet omhandler processen og leverancesystemet...

  6. SKYSCRAPER FUTURE VISIONS

    Directory of Open Access Journals (Sweden)

    Mohamad Kashef

    2008-07-01

    Full Text Available This paper addresses two skyscraper visions: Tokyo’s Sky City and the Shimizu Mega-City Pyramid. Prompted by the dearth of land and growing urban problems in Tokyo, these skyscraper visions offer alternative built forms with revolutionary technologies in building materials, construction methods, energy generation, and transportation systems. They are designed to be self-sufficient with homes, offices, outdoor green spaces, commercial establishments, restaurants, hospitals, trains, cars, and conceivably everything that hundreds of thousands of people need during the course of their lifetimes. The promise is that creating such vertical cities would relieve Tokyo from overcrowding and replace the urban concrete "jungle" on the ground with super towers straddling expansive green spaces or the water of Tokyo Bay.

  7. 2015 Enterprise Strategic Vision

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-08-01

    This document aligns with the Department of Energy Strategic Plan for 2014-2018 and provides a framework for integrating our missions and direction for pursuing DOE’s strategic goals. The vision is a guide to advancing world-class science and engineering, supporting our people, modernizing our infrastructure, and developing a management culture that operates a safe and secure enterprise in an efficient manner.

  8. Research for VISION 2020

    Directory of Open Access Journals (Sweden)

    Peter Ackland

    2010-12-01

    Full Text Available We need good quality information to be able to carry out our eye care programmes in support of VISION 2020, to measure (and improve our performance, and to advocate for the resources and support we need to succeed. Much of this information can be collected, analysed, and used as part of our daily work, as many of the articles in this issue show.

  9. Low Vision Devices and Training

    Directory of Open Access Journals (Sweden)

    Imran Azam Butt

    2004-01-01

    Full Text Available Vision is the ability to see with a clear perception of detail, colour and contrast, and to distinguish objects visually. Like any other sense, vision tends to deteriorate or diminish naturally with age. In most cases, reduction in visual capability can be corrected with glasses, medicine or surgery. However, if the visual changes occur because of an incurable eye disease, condition or injury, vision loss can be permanent. Many people around the world with permanent visual impairment have some residual vision which can be used with the help of low vision services, materials and devices. This paper describes different options for the enhancement of residual vision including optical and non-optical devices and providing training for the low vision client.

  10. Visión empresarial a través del espíritu emprendedor de los estudiantes que cursan la unidad de aprendizaje del ámbito empresarial en la UANL, FACPYA (Business vision through its entrepreneurial spirit of the students who attend the Learning Unit of the business sector in the UANL, FACPYA)

    National Research Council Canada - National Science Library

    Carrera, Margarita; Partida, Abel; Villarreal, Luis

    2016-01-01

    This research aims to recognize the characteristics that form the entrepreneurship and how these essential characteristics contribute to the entrepreneurial vision of university students of the Facultad de Contaduría...

  11. Wearable Improved Vision System for Color Vision Deficiency Correction

    Science.gov (United States)

    Riccio, Daniel; Di Perna, Luigi; Sanniti Di Baja, Gabriella; De Nino, Maurizio; Rossi, Settimio; Testa, Francesco; Simonelli, Francesca; Frucci, Maria

    2017-01-01

    Color vision deficiency (CVD) is an extremely frequent vision impairment that compromises the ability to recognize colors. In order to improve color vision in a subject with CVD, we designed and developed a wearable improved vision system based on an augmented reality device. The system was validated in a clinical pilot study on 24 subjects with CVD (18 males and 6 females, aged 37.4 ± 14.2 years). The primary outcome was the improvement in the Ishihara Vision Test score with the correction proposed by our system. The Ishihara test score significantly improved (\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{upgreek} \\usepackage{mathrsfs} \\setlength{\\oddsidemargin}{-69pt} \\begin{document} }{}$p = 0.03$ \\end{document}) from 5.8 ± 3.0 without correction to 14.8 ± 5.0 with correction. Almost all patients showed an improvement in color vision, as shown by the increased test scores. Moreover, with our system, 12 subjects (50%) passed the vision color test as normal vision subjects. The development and preliminary validation of the proposed platform confirm that a wearable augmented-reality device could be an effective aid to improve color vision in subjects with CVD. PMID:28507827

  12. Memories and Vision

    OpenAIRE

    Bates, Catherine

    2002-01-01

    For a sighted person, memory is strongly connected to vision and visual\\ud images. Even a memory triggered by a smell or sound tends to be a visual one.\\ud As a memory recedes over time, photographs can be used to refresh it,\\ud restructuring it in a particularly static, almost death-like way. A person who\\ud has died, for example, after time may be remembered more as their still visual\\ud image, captured in a photograph, than as the sum of their personality, actions,\\ud or essential human-ne...

  13. Beyond Strategic Vision

    CERN Document Server

    Cowley, Michael

    2012-01-01

    Hoshin is a system which was developed in Japan in the 1960's, and is a derivative of Management By Objectives (MBO). It is a Management System for determining the appropriate course of action for an organization, and effectively accomplishing the relevant actions and results. Having recognized the power of this system, Beyond Strategic Vision tailors the Hoshin system to fit the culture of North American and European organizations. It is a "how-to" guide to the Hoshin method for executives, managers, and any other professionals who must plan as part of their normal job. The management of an o

  14. Company Vision and Organizational Learning

    Directory of Open Access Journals (Sweden)

    Vojko Toman

    2015-11-01

    Full Text Available The effectiveness of a company is largely dependent on the company itself; it depends above all on its corporate governance, management, and implementation, as well as on decision-making processes and coordination. Many authors believe that organizational learning and knowledge are the most relevant aspects of company effectiveness. If a company wants to be effective it needs to create and realize its vision; to do this, it needs creativity, imagination, and knowledge, which can be obtained or enhanced through learning. This paper defines vision, learning, creativity and management and, above all, their relationships. The author argues that company vision influences the learning and knowledge of employees in the company through the vision’s content, through the vision-creating process, and through the vision enforcement process. Conversely, the influence of learning on company vision is explained. The paper is aimed at the use in the practice of companies and helps them to increase their effectiveness.

  15. Visiones sobre el poder

    OpenAIRE

    Vélez Vélez, Marco Antonio

    2007-01-01

    Las siguientes consideraciones se ocuparán de concepciones sobre el poder, emanadas de teóricos con diversa orientación epistémica e ideológica, tan disímiles como pueden ser los nombres de Marx, Foucault, Luhmann, Max Weber y Elías Canetti. Coinciden los primeros en una apreciación estructural del poder más allá de sus divergencias en el enfoque del mismo. The following considerations will deal with conceptions about the power emanating from diverse theoretical and ideologi...

  16. Energy visions 2050

    Energy Technology Data Exchange (ETDEWEB)

    2009-07-01

    Energy Visions 2050 considers measures for addressing the enormous future challenges facing the energy sector, focusing on technological and techno-economic perspectives. The analysis of the development of technologies covers the whole energy chain, highlighting the necessity of efficient energy use in all activities of societies. The contents include a discussion on potential future low-emission and renewable energy conversion technologies, as well as new technology solutions in the industrial, building and transport sectors and in energy supply systems. The move towards zero-emission energy systems has consequenses for energy supply, and makes the analysis of energy resources presented in the book all the more valuable. Scenarios of alternative development paths to 2050 at the global, European and Finnish levels are presented, assuming different technological development options, economic growth rates, degrees of globalisation and information flows. The results show interesting differences between the scenarios with regard to energy production and use, mitigation of greenhouse gas emissions, and global warming. Energy Visions 2050 in mainly intended for those who have a fairly good knowledge of the energy sector and energy technologies, e.g. energy policymakers, experts responsible for energy-related issues in industry, and investors in energy technologies. The topics are approached from a global perspective. In some technological details, however, Finnish technology and Finland's technological achievements are highlighted. The topics and viewpoints of the book will certainly be of interest to international readers as well

  17. Coherent laser vision system

    Energy Technology Data Exchange (ETDEWEB)

    Sebastion, R.L. [Coleman Research Corp., Springfield, VA (United States)

    1995-10-01

    The Coherent Laser Vision System (CLVS) is being developed to provide precision real-time 3D world views to support site characterization and robotic operations and during facilities Decontamination and Decommissioning. Autonomous or semiautonomous robotic operations requires an accurate, up-to-date 3D world view. Existing technologies for real-time 3D imaging, such as AM laser radar, have limited accuracy at significant ranges and have variability in range estimates caused by lighting or surface shading. Recent advances in fiber optic component technology and digital processing components have enabled the development of a new 3D vision system based upon a fiber optic FMCW coherent laser radar. The approach includes a compact scanner with no-moving parts capable of randomly addressing all pixels. The system maintains the immunity to lighting and surface shading conditions which is characteristic to coherent laser radar. The random pixel addressability allows concentration of scanning and processing on the active areas of a scene, as is done by the human eye-brain system.

  18. Benchmarking Neuromorphic Vision: Lessons Learnt from Computer Vision

    Directory of Open Access Journals (Sweden)

    Cheston eTan

    2015-10-01

    Full Text Available Neuromorphic Vision sensors have improved greatly since the first silicon retina was presented almost three decades ago. They have recently matured to the point where they are commercially available and can be operated by laymen. However, despite improved availability of sensors, there remains a lack of good datasets, and algorithms for processing spike-based visual data are still in their infancy. On the other hand, frame-based computer vision algorithms are far more mature, thanks in part to widely accepted datasets which allow direct comparison between algorithms and encourage competition. We are presented with a unique opportunity to shape the development of Neuromorphic Vision benchmarks and challenges by leveraging what has been learnt from the use of datasets in frame-based computer vision. Taking advantage of this opportunity, in this paper we review the role that benchmarks and challenges have played in the advancement of frame-based computer vision, and suggest guidelines for the creation of Neuromorphic Vision benchmarks and challenges. We also discuss the unique challenges faced when benchmarking Neuromorphic Vision algorithms, particularly when attempting to provide direct comparison with frame-based computer vision.

  19. Near vision spectacle coverage and barriers to near vision ...

    African Journals Online (AJOL)

    Purpose: To determine the near vision spectacle coverage and barriers to obtaining near vision correction among adults aged 35 years and older in the Cape Coast Metropolis of Ghana. Methods: A population-based cross-sectional study design was adopted and 500 out of 576 participants aged 35 years and older were ...

  20. Near vision spectacle coverage and barriers to near vision ...

    African Journals Online (AJOL)

    Abstract: Purpose: To determine the near vision spectacle coverage and barriers to obtaining near vision correction among adults aged. 35 years and older in the Cape Coast Metropolis of Ghana. Methods: A population-based cross-sectional study design was adopted and 500 out of 576 participants aged 35 years and ...

  1. Benchmarking neuromorphic vision: lessons learnt from computer vision.

    Science.gov (United States)

    Tan, Cheston; Lallee, Stephane; Orchard, Garrick

    2015-01-01

    Neuromorphic Vision sensors have improved greatly since the first silicon retina was presented almost three decades ago. They have recently matured to the point where they are commercially available and can be operated by laymen. However, despite improved availability of sensors, there remains a lack of good datasets, while algorithms for processing spike-based visual data are still in their infancy. On the other hand, frame-based computer vision algorithms are far more mature, thanks in part to widely accepted datasets which allow direct comparison between algorithms and encourage competition. We are presented with a unique opportunity to shape the development of Neuromorphic Vision benchmarks and challenges by leveraging what has been learnt from the use of datasets in frame-based computer vision. Taking advantage of this opportunity, in this paper we review the role that benchmarks and challenges have played in the advancement of frame-based computer vision, and suggest guidelines for the creation of Neuromorphic Vision benchmarks and challenges. We also discuss the unique challenges faced when benchmarking Neuromorphic Vision algorithms, particularly when attempting to provide direct comparison with frame-based computer vision.

  2. Understanding and applying machine vision

    CERN Document Server

    Zeuch, Nello

    2000-01-01

    A discussion of applications of machine vision technology in the semiconductor, electronic, automotive, wood, food, pharmaceutical, printing, and container industries. It describes systems that enable projects to move forward swiftly and efficiently, and focuses on the nuances of the engineering and system integration of machine vision technology.

  3. Geometric Modeling for Computer Vision

    Science.gov (United States)

    1974-10-01

    The main contribution of this thesis is the development of a three dimensional geometric modeling system for application to computer vision . In... computer vision geometric models provide a goal for descriptive image analysis, an origin for verification image synthesis, and a context for spatial

  4. An overview of computer vision

    Science.gov (United States)

    Gevarter, W. B.

    1982-01-01

    An overview of computer vision is provided. Image understanding and scene analysis are emphasized, and pertinent aspects of pattern recognition are treated. The basic approach to computer vision systems, the techniques utilized, applications, the current existing systems and state-of-the-art issues and research requirements, who is doing it and who is funding it, and future trends and expectations are reviewed.

  5. Teachers: The vision supported

    Energy Technology Data Exchange (ETDEWEB)

    Tuomi, J.

    1994-12-31

    A support system is necessary to implement the vision of standards-based science education. The National Science Resources Center has studied isolated areas where innovations have succeeded and finds that the successful enterprises have these elements in common: 1. The availability of high-quality, inquiry-centered science curriculum units that are appropriate for children; 2. Teacher education programs to prepare and support elementary teachers to teach hands-on, inquiry-centered science; 3. Support systems for supplying science materials and equipment to teachers; 4. Assessment methods for evaluating student performance that are consistent with the goals of an effective science program; and, 5. Administrative and community support for an effective science program.

  6. Loss of vision.

    Science.gov (United States)

    Lueck, Christian J

    2010-12-01

    Visual loss is not uncommon and many patients end up seeing neurologists because of it. There is a long list of possible causes but in most patients visual loss is associated with visual field loss. This means that for practical purposes the differential diagnosis can usually be narrowed down to a manageable shortlist by consideration of where in the visual pathway the lesion is likely to be, along with the time course of the visual loss. This article provides a practical approach to the diagnosis and appropriate investigation of such patients, dividing them into four groups: those in whom vision is lost transiently, acutely, subacutely (i.e., days to weeks) and over a longer time frame (months to years). In addition, there is a discussion of those patients in whom visual loss is not obviously accompanied by any visual field loss.

  7. Mali: Visions of War

    Directory of Open Access Journals (Sweden)

    Roland Marchal

    2013-06-01

    Full Text Available Political elites in Bamako articulate different understandings of the war in northern Mali, though share the same view on the restoration of Malian sovereignty. Those visions are deeply rooted in an assessment of the past failed peace agreements with Tuareg groups, a focus on social and ethnic differentiations that emphasize the role of Kidal and the will to avoid major reforms in dealing with key issues such as the efficiency of the political system, the role of Islam in the Malian polity and the complicated relations between Bamako and its neighbours. The status of AQIM in the current crisis, contrary to the international narrative, is downplayed while other armed groups, in particular the MNLA, are seen as the real, and, often, only threat.

  8. 2020 Vision Project Summary

    Energy Technology Data Exchange (ETDEWEB)

    Gordon, K.W.; Scott, K.P.

    2000-11-01

    Since the 2020 Vision project began in 1996, students from participating schools have completed and submitted a variety of scenarios describing potential world and regional conditions in the year 2020 and their possible effect on US national security. This report summarizes the students' views and describes trends observed over the course of the 2020 Vision project's five years. It also highlights the main organizational features of the project. An analysis of thematic trends among the scenarios showed interesting shifts in students' thinking, particularly in their views of computer technology, US relations with China, and globalization. In 1996, most students perceived computer technology as highly beneficial to society, but as the year 2000 approached, this technology was viewed with fear and suspicion, even personified as a malicious, uncontrollable being. Yet, after New Year's passed with little disruption, students generally again perceived computer technology as beneficial. Also in 1996, students tended to see US relations with China as potentially positive, with economic interaction proving favorable to both countries. By 2000, this view had transformed into a perception of China emerging as the US' main rival and ''enemy'' in the global geopolitical realm. Regarding globalization, students in the first two years of the project tended to perceive world events as dependent on US action. However, by the end of the project, they saw the US as having little control over world events and therefore, we Americans would need to cooperate and compromise with other nations in order to maintain our own well-being.

  9. Computer vision for an autonomous mobile robot

    CSIR Research Space (South Africa)

    Withey, Daniel J

    2015-10-01

    Full Text Available Computer vision systems are essential for practical, autonomous, mobile robots – machines that employ artificial intelligence and control their own motion within an environment. As with biological systems, computer vision systems include the vision...

  10. Genetics Home Reference: color vision deficiency

    Science.gov (United States)

    ... These two forms of color vision deficiency disrupt color perception but do not affect the sharpness of vision ( ... Protan defect Florida State University: Human Vision and Color Perception KidsHealth from the Nemours Foundation MalaCards: color blindness ...

  11. Leg med vision

    DEFF Research Database (Denmark)

    Munk, Mette; Bertelsen, Katrine

    2011-01-01

    Bogen henvender sig primært til det pædagogiske personale med målgruppen daginstitutioner. Bogen skal stimulere arbejdet med at gøre bevægelse til en integreret del af kulturen i daginstitutioner - at få det pædagogiske personale til - at sætte ord på og spørgsmålstegn ved deres pædagogiske bevæg...

  12. Translating visions into realities.

    Science.gov (United States)

    Nesje, Arne

    2006-08-01

    The overall vision and the building concept. The overall vision with individual buildings that have focal points for the related medical treatment may seem to increase both investment and operational cost, especially in the period until the total hospital is finished (2014). The slogan "Better services at lower cost" is probably a vision that will prove to be hard to fulfil. But the patients will probably be the long-term winners with single rooms with bathroom, high standards of service, good architecture and a pleasant environment. The challenge will be to get the necessary funding for running the hospital. The planning process and project management Many interviewees indicate how difficult it is to combine many functions and requirements in one building concept. Different architectural, technical, functional and economic interests will often cause conflict. The project organisation HBMN was organised outside the administration of both STOLAV and HMN. A closer connection and better co-operation with STOLAV may have resulted in more influence from the medical employees. It is probably fair to anticipate that the medical employees would have felt more ownership of the process and thus be more satisfied with the concept and the result. On the other hand the organisation of the project outside the hospital administration may have contributed to better control and more professional management of the construction project. The management for planning and building (technical programme, environmental programme, aesthetical The need for control on site was probably underestimated. For STOLAV technical department (TD) the building process has been time-consuming by giving support, making controls and preparing the take-over phase. But during this process they have become better trained to run and operate the new centres. The commissioning phase has been a challenging time. There were generally more changes, supplementation and claims than anticipated. The investment costs

  13. National Hydrogen Vision Meeting Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    None

    2001-11-01

    This document provides presentations and summaries of the notes from the National Hydrogen Vision Meeting''s facilitated breakout sessions. The Vision Meeting, which took place November 15-16, 2001, kicked off the public-private partnership that will pave the way to a more secure and cleaner energy future for America. These proceedings were compiled into a formal report, A National Vision of America''s Transition to a Hydrogen Economy - To 2030 and Beyond, which is also available online.

  14. Surgical treatment of low vision.

    Science.gov (United States)

    Gorfinkel, John

    2006-06-01

    Recent advances in technology are driving a renewed search to find surgical solutions for low vision rehabilitation. The scope of surgery is now being pushed beyond the initial goal of repairing existing anatomical structures. Today, the goal for vision rehabilitation is no less than replacing damaged ocular tissues with artificial ones. Surgical management of low vision may be subdivided into two categories, those procedures aimed at restoring ultrastructural visual function and those aimed at enhancing visual acuity of the residual retina with various levels of magnification. This paper briefly reviews advances in ultrastructural restoration by repair and considers in more detail enhanced acuity through magnification or replacement.

  15. CALIDAD PROFESIONAL DEL TÉCNICO SUPERIOR UNIVERSITARIO EN ADMINISTRACIÓN. UNA VISIÓN DE GRADUADOS Y DE EMPLEADORES (PROFESSIONAL QUALITY OF THE HIGHER TECHNICAL UNIVERSITY IN ADMINISTRATION. A VISION FOR GRADUATES AND EMPLOYERS

    Directory of Open Access Journals (Sweden)

    Damián Simón Javier

    2009-08-01

    Full Text Available Resumen:Se presentan los resultados del trabajo de investigación de un estudio de caso “Calidad profesional del Técnico Superior Universitario en Administración. Una visión de graduados y de empleadores”. El objetivo fue evaluar el grado de cumplimiento en las funciones y tareas del ejercicio profesional de los TSUA, así como las habilidades y actitudes de los mismos en respuesta al perfil profesional solicitado por el empleador e, identificar las exigencias profesionales a las que se enfrentan dichos graduados. Se trabajó con una muestra de 60 graduados de las primeras cuatro generaciones y se entrevistó a dieciocho empleadores que a la fecha han contratado a una gran cantidad de graduados. Los resultados obtenidos al contrastar las opiniones de los graduados y las de los empleadores muestran un alto grado de concordancia, existe satisfacción de los empleadores en cuanto al nivel de cumplimiento de las funciones, habilidades y actitudes de los TSUA; no obstante, los graduados presentan un bajo grado de satisfacción en el nivel salarial que obtienen, el escaso reconocimiento profesional alcanzado, el tipo de puesto que ocupan y la posición jerárquica alcanzada.Abstract:We present the results of the research named "Professional quality of the higher technical university in administration. A view of graduates and employers”. The goal was t o assess the degree of compliance on the functions and duties of the profession of TSUA, as well as the skills and attitudes of those in response to theprofile requested by the employer. Identify the professional demands faced by these graduates. We worke d with a sample of 60 graduates of the first four generations and interviewed eighteen employers whose have recruited a large number of graduates. Until now the results contrast the views of graduates and employers show a high degree of consistency, there is a satisfaction of employers in the level of accomplishment of the tasks, skills and

  16. Vision Therapy for Post-Concussion Vision Disorders.

    Science.gov (United States)

    Gallaway, Michael; Scheiman, Mitchell; Mitchell, G Lynn

    2017-01-01

    To determine the frequency and types of vision disorders associated with concussion, and to determine the success rate of vision therapy for these conditions in two private practice settings. All records over an 18-month period of patients referred for post-concussion vision problems were reviewed from two private practices. Diagnoses of vergence, accommodative, or eye movement disorders were based on pre-established, clinical criteria. Vision therapy was recommended based on clinical findings and symptoms. Two hundred eighteen patient records were found with a diagnosis of concussion. Fifty-six percent of the concussions were related to sports, 20% to automobile accidents, and 24% to school, work, or home-related incidents. The mean age was 20.5 years and 58% were female. Eighty-two percent of the patients had a diagnosis of an oculomotor problem [binocular problems (62%), accommodative problems (54%), eye movement problems (21%)]. The most prevalent diagnoses were convergence insufficiency (CI, 47%) and accommodative insufficiency (AI, 42%). Vision therapy was recommended for 80% of the patients. Forty-six per cent (80/175) either did not pursue treatment or did not complete treatment. Of the 54% (95/175) who completed therapy, 85% of patients with CI were successful and 15% were improved, and with AI, 33% were successful and 67% improved. Clinically and statistically significant changes were measured in symptoms, near point of convergence, positive fusional vergence, and accommodative amplitude. In this case series, post-concussion vision problems were prevalent and CI and AI were the most common diagnoses. Vision therapy had a successful or improved outcome in the vast majority of cases that completed treatment. Evaluation of patients with a history of concussion should include testing of vergence, accommodative, and eye movement function. Prospective clinical trials are necessary to assess the natural history of concussion-related vision disorders and

  17. Vision and visualization.

    Science.gov (United States)

    Wade, Nicholas J

    2008-01-01

    The art of visual communication is not restricted to the fine arts. Scientists also apply art in communicating their ideas graphically. Diagrams of anatomical structures, like the eye and visual pathways, and figures displaying specific visual phenomena have assisted in the communication of visual ideas for centuries. It is often the case that the development of a discipline can be traced through graphical representations and this is explored here in the context of concepts of visual science. As with any science, vision can be subdivided in a variety of ways. The classification adopted is in terms of optics, anatomy, and visual phenomena; each of these can in turn be further subdivided. Optics can be considered in terms of the nature of light and its transmission through the eye. Understanding of the gross anatomy of the eye and visual pathways was initially dependent upon the skills of the anatomist whereas microanatomy relied to a large extent on the instruments that could resolve cellular detail, allied to the observational skills of the microscopist. Visual phenomena could often be displayed on the printed page, although novel instruments expanded the scope of seeing, particularly in the nineteenth century.

  18. Fly motion vision.

    Science.gov (United States)

    Borst, Alexander; Haag, Juergen; Reiff, Dierk F

    2010-01-01

    Fly motion vision and resultant compensatory optomotor responses are a classic example for neural computation. Here we review our current understanding of processing of optic flow as generated by an animal's self-motion. Optic flow processing is accomplished in a series of steps: First, the time-varying photoreceptor signals are fed into a two-dimensional array of Reichardt-type elementary motion detectors (EMDs). EMDs compute, in parallel, local motion vectors at each sampling point in space. Second, the output signals of many EMDs are spatially integrated on the dendrites of large-field tangential cells in the lobula plate. In the third step, tangential cells form extensive interactions with each other, giving rise to their large and complex receptive fields. Thus, tangential cells can act as matched filters tuned to optic flow during particular flight maneuvers. They finally distribute their information onto postsynaptic descending neurons, which either instruct the motor centers of the thoracic ganglion for flight and locomotion control or act themselves as motor neurons that control neck muscles for head movements.

  19. 2020 vision for KAUST

    CERN Multimedia

    CERN Bulletin

    2010-01-01

    Felicitas Pauss, Head of International Relations at CERN, greets Members of the Board of Trustees of the King Abdullah University of Science and Technology, KAUST, who visited CERN on Friday 6 August.   Members of Board of Trustees of the King Abdullah University of Science and Technology upon their arrival at CERN. KAUST, which is situated on Saudi Arabia’s Red Sea coast, is a new, forward-looking co-educational and research university with a vision to become one of the world’s top ten science and technology Universities by 2020, stimulating the intellectual life of Saudi Arabia and making significant contributions to the country’s economy. CERN’s Director General, Rolf Heuer, is a member of the Board of Trustees. “I accepted the invitation to join the board because I believe that KAUST’s values can make a real difference to the region and to the world,” he said. The University’s mission statement emphasises achiev...

  20. DANÇA ALÉM DA VISÃO: POSSIBILIDADES DO CORPO CEGO DANCE BEYOND THE VISION: POSSIBILITIES OF THE BLIND BODY DANZA MÁS ALLÁ DE LA VISIÓN: POSIBILIDADES DEL CUERPO CIEGO

    Directory of Open Access Journals (Sweden)

    2008-12-01

    Full Text Available

    O artigo suscita reflexões sobre as possibilidades do corpo cego e a interação com a dança na construção da autonomia. Autores como Fleming, Frazão e Lusseyran apontam questões sobre a rede tecida pelos sentidos na formação de imagens sensório-motoras pelo deficiente visual. Damásio contribui para o entendimento de emoção e razão; Llinás explica a construção do movimento baseado na Neurociência; Katz traz a Teoria do Corpomídia para pensar a dança como cognição. As considerações finais observam a dança como parte do conhecimento humano sendo um espaço que possibilita o entrelaçamento de saberes, visto que o ser humano se constrói em rede pelo imbricamento entre corpo, ambiente e cultura.

    The article raises thoughts on the possibilities of the blind body and the interaction with the dance in the construction of autonomy. Authors such as Fleming, Frazão and Lusseyran point to questions about the network woven by the senses in the formation of sensory-motor images by the visual disabled. Damásio contributes to the understanding of emotion and reason; Llinás explains the construction of the movement based in Neurosciences; Katz brings the Corpomídia theory to think dance as cognition. The final considerations observe dance as part of the human knowledge being an space that allows the connection of knowledge, because the human being is built into the network between body, environment and culture.

    El artículo suscita reflexiones sobre las posibilidades del cuerpo ciego y la interacción con la danza en la construcción de la autonomía. Autores como Fleming, Frazao y Lusseyran apuntan cuestiones sobre la red tejida por los sentidos en la formación de imágenes sensorial-motrices por el discapacitado visual. Damásio contribuyó para el entendimiento de emoción y

  1. Computer Vision for Timber Harvesting

    DEFF Research Database (Denmark)

    Dahl, Anders Lindbjerg

    The goal of this thesis is to investigate computer vision methods for timber harvesting operations. The background for developing computer vision for timber harvesting is to document origin of timber and to collect qualitative and quantitative parameters concerning the timber for efficient harvest...... segments. The purpose of image segmentation is to make the basis for more advanced computer vision methods like object recognition and classification. Our second method concerns image classification and we present a method where we classify small timber samples to tree species based on Active Appearance...... to the development of the logTracker system the described methods have a general applicability making them useful for many other computer vision problems....

  2. Do You Have Low Vision?

    Science.gov (United States)

    ... Ojos Cómo hablarle a su oculista Do You Have Low Vision? There are many signs that can ... example, even with your regular glasses, you may have difficulty: Recognizing faces of friends and relatives. Doing ...

  3. Low vision rehabilitation: current perspectives

    National Research Council Canada - National Science Library

    Vingolo, Enzo Maria; De Rosa, Vittoria; Domanico, Daniela; Anselmucci, Federico

    2015-01-01

    ...: Quality of life in low vision patients is deeply conditioned by their visual ability, and increased rates of depression, domestic injury, and need for caregiver assistance can be expected as a result of low performance...

  4. Clinical Trials in Vision Research

    Science.gov (United States)

    ... Clinical Trials in Vision Research Booklet for Nook, iPad and iPhone (EPUB - 1.6MB) Download the Clinical ... NEI Office of Science Communications, Public Liaison, and Education. Technical questions about this website can be addressed ...

  5. Implicaciones del comercio por el puerto de San Blas durante la guerra de independencia

    Directory of Open Access Journals (Sweden)

    Trejo Barajas, Dení

    2006-12-01

    Full Text Available This article analyzes the importance acquired during the Independence war by the maritime trade coming from other Central and South American ports and operating through the San Blas port. The antecedents of the colonial commerce are studied, as well as the British presence and the consequences of the free trade measures taken by the Spanish government which particularly affected the Nueva Galicia Intendencia and the Pacific coasts of Nueva España. In the end, this highly polemical traffic permitted by the Spanish authorities strengthened Nueva Galicia both politically and economically, and prefigured the regionalism that was to be characteristical in 19th Century Mexico.

    En este artículo se analiza la importancia que adquirió, durante la guerra de Independencia, el comercio marítimo por el puerto de San Blas procedente de Panamá y otros puertos centro y sudamericanos. Se exponen los antecedentes relativos a la crisis del comercio colonial, la presencia inglesa y los efectos de las medidas de libre comercio adoptadas por el gobierno español que afectaron de manera particular a la intendencia de Nueva Galicia y las costas del Pacífico novohispano. Se revisan las consecuencias de este polémico tráfico permitido por las autoridades hispanas y que desembocó en el fortalecimiento político y económico de la Nueva Galicia, prefigurando el regionalismo característico del siglo XIX mexicano.

  6. Artificial intelligence and computer vision

    CERN Document Server

    Li, Yujie

    2017-01-01

    This edited book presents essential findings in the research fields of artificial intelligence and computer vision, with a primary focus on new research ideas and results for mathematical problems involved in computer vision systems. The book provides an international forum for researchers to summarize the most recent developments and ideas in the field, with a special emphasis on the technical and observational results obtained in the past few years.

  7. [Acquired disorders of color vision].

    Science.gov (United States)

    Lascu, Lidia; Balaş, Mihaela

    2002-01-01

    This article is a general view of acquired disorders of color vision. The revision of the best known methods and of the etiopathogenic classification is not very important in ophthalmology but on the other hand, the detection of the blue defect advertise and associated ocular pathology. There is a major interest in serious diseases as multiple sclerosis, AIDS, diabetes melitus, when the first ocular sign can be a defect in the color vision.

  8. Machine Learning for Computer Vision

    CERN Document Server

    Battiato, Sebastiano; Farinella, Giovanni

    2013-01-01

    Computer vision is the science and technology of making machines that see. It is concerned with the theory, design and implementation of algorithms that can automatically process visual data to recognize objects, track and recover their shape and spatial layout. The International Computer Vision Summer School - ICVSS was established in 2007 to provide both an objective and clear overview and an in-depth analysis of the state-of-the-art research in Computer Vision. The courses are delivered by world renowned experts in the field, from both academia and industry, and cover both theoretical and practical aspects of real Computer Vision problems. The school is organized every year by University of Cambridge (Computer Vision and Robotics Group) and University of Catania (Image Processing Lab). Different topics are covered each year. A summary of the past Computer Vision Summer Schools can be found at: http://www.dmi.unict.it/icvss This edited volume contains a selection of articles covering some of the talks and t...

  9. Estimation of the resource and technological prospective of geothermal energy in Mexico (Annexe 3 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Estimacion del recurso y prospectiva tecnologica de la geotermia en Mexico (Anexo 3 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

    Energy Technology Data Exchange (ETDEWEB)

    Iglesias R, Eduardo; Arellano G, Victor; Torres R, Rodolfo Joaquin [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2005-08-15

    Due to its individual geologic-structural characteristics, Mexico counts on abundant geothermal resources. At the moment we count on a database that includes 2,332 geothermal manifestations distributed in 27 of the 32 Mexican states, the geothermal resources are classified as high temperature and intermediate or low temperature resources. Those of high temperature can be used for the generation of electrical energy. Those of intermediate to low temperature are more appropriate for direct applications of the geothermal heat. As of today, in Mexico exist four geothermal fields of high temperature that are being exploded for the electrical generation. [Spanish] Debido a sus particulares caracteristicas geologico-estructurales, Mexico cuenta con abundantes recursos geotermicos. Actualmente contamos con una base de datos que incluye 2,332 manifestaciones geotermicas distribuidas en 27 de los 32 estados mexicanos, los recursos geotermicos se clasifican en de alta temperatura y recursos de temperatura intermedia a baja. Los de alta temperatura pueden utilizarse para la generacion de energia electrica. Los de temperatura intermedia a baja son mas apropiados para aplicaciones directas del calor geotermico. Actualmente en Mexico existen cuatro campos geotermicos de alta temperatura que estan siendo explotados para la generacion electrica.

  10. View How Glaucoma May Affect Vision

    Science.gov (United States)

    ... inbox. Sign up View How Glaucoma May Affect Vision Normal Vision This is an example of normal vision. This is also an example of how someone ... gradual and often imperceptible failing of side (peripheral) vision. Intermediate Glaucoma As glaucoma progresses, the center of ...

  11. Estimation of the resource for small, mini and micro hydro-energy: Applications in Mexico. First part: Estimation of the Resource (Annexe 8 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Estimacion del recurso para pequena, mini y micro hidroenergia: Aplicaciones en Mexico. Primera parte: Estimacion del Recurso (Anexo 8 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

    Energy Technology Data Exchange (ETDEWEB)

    Valdez Ingenieros, S.A. de C.V. [Cuernavaca, Morelos (Mexico)

    2005-08-15

    In this document a discussion is presented on the potential denominated small, mini or micro-hydraulic whereupon counts the country with the intention of coming to its development or operation. The use of hydro-energy in small scale is possible as much as for the auto-industrial supply as for productive activities in rural areas. Comments also made on the uncertainties of its assessment and the way it considers to follow to continue with the works that take to conclude at 100% the assessment of the national potential in the near future, since apparently in Mexico a little more of 2% of such potential has been only developed. One knows that in other countries in the last ten years, an accelerated development of this power source with satisfactory results has been obtained. [Spanish] En este documento se presenta una discusion sobre el potencial denominado pequeno, mini o micro hidraulico con que cuenta el pais con el objeto de proceder a su desarrollo o explotacion. El uso de la hidroenergia en pequena escala es posible tanto para el auto abasto industrial como para actividades productivas en el medio rural. Se comenta tambien sobre las incertidumbres de su determinacion y se plantea el camino a seguir para continuar con los trabajos que lleven a concluir al 100% la determinacion del potencial nacional en el futuro cercano, ya que al parecer en Mexico solo se ha desarrollado un poco mas del 2% de dicho potencial. Se sabe que en otros paises en los ultimos diez anos, se ha logrado un acelerado desarrollo de esta fuente energetica con resultados satisfactorios.

  12. Vision of irrigation

    Directory of Open Access Journals (Sweden)

    Fernando Braz-Tangerino

    2014-08-01

    Full Text Available Irrigation not only has been a key factor for the development and maintenance of human societies but it still plays this role now and it is foreseen that in the future as well. Its evolution has been constrained to the advance in knowledge on matters regarding Agronomy and Water Engineering and in technology however, many challenges deserve further research. It is worth to note that Brazil has strongly promoted irrigation in the last decade. Within the limited extension of this article, some current topics in irrigation, some of them are innovative such us the research line studying water flow in soil-plant in Mediterranean plants and its consequences on water use,. and future challenges are presented with the purpose of stimulate publication of Irrigation papers in the journal “Ingeniería del Agua” among Portuguese and Spanish language communities.

  13. Rafael Castro, photographer and chronicler of the “Expedición Científica del Pacífico” (1862-1866 and his vision of California

    Directory of Open Access Journals (Sweden)

    Sara Badía-Villaseca

    2016-12-01

    Full Text Available In October 1863, Rafael Castro y Ordóñez, artist and photographer of the Comisión Científica del Pacífico, traveled across the State of California in the company of naturalist Francisco de Paula Martínez y Sáez. The Comisión was associated with a pan- Hispanic military and political expedition. As a result of the expedition the artist produced around twenty photographs, drawings, and several letters that were ultimately published by the Spanish pictorial magazine El Museo Universal. Both his photographs and travel accounts make up an exceptionally valuable body of knowledge allowing to reconstruct not only the Comisión project but also its attempt at portraying a new image of America following the independence of Spain’s former colonies and the ascent of the United States as a world power. This paper analyzes both this discourse and its expression in relation to California, a then recently incorporated US territory. Several interesting phenomena, including occasional breaches in the discourse, the circulation of photographs beyond the expedition’s context, and the connections of this exploration journey with tourism, will be unveiled in the course of the present study.

  14. Long term vision on the use of the renewable energies in Mexico: Solar energy. First Part: Evaluation of the Solar Resource in Mexico (Annexe 6-I in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Vision a largo plazo sobre la utilizacion de las energias renovables en Mexico: Energia solar. Primera Parte: Evaluacion del Recurso Solar en Mexico (Anexo 6-I en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

    Energy Technology Data Exchange (ETDEWEB)

    Estrada Gasca, Claudio A; Arancibia Bulnes, Camilo A; Dorantes Rodriguez, Ruben; Islas Samperio, Jorge; Muhlia Velasquez, Agustin [Universidad Nacional Autonoma de Mexico (Mexico)

    2005-08-15

    The application of the solar energy requires an evaluation of the solar resource. It is understood by evaluation the determination of the amount of solar energy available to be used in an application; from the point of view of the present applications it is advisable to distinguish two: the direct solar radiation and the diffuse solar radiation, that conform what it is known as the global solar radiation, or hemispheric. All the solar collectors have capacity to use the direct radiation, their capacity to use diffuse radiation depends on the concentration factor of the radiation that characterizes them. Another distinction that can be done is the measurement of different parts from the spectrum. It is not simple to predict the value of the solar radiation in a site or given moment, this has implications in the design of solar facilities, which are constructed to operate during a large number of years. [Spanish] La aplicacion de la energia solar requiere una evaluacion del recurso solar. Se entiende por evaluacion a la determinacion de la cantidad de energia solar disponible para ser utilizada en una aplicacion; desde el punto de vista de las aplicaciones actuales conviene distinguir dos: la radiacion solar directa y la radiacion solar difusa, que conforman lo que se conoce como la radiacion solar global, o hemisferica. Todos los colectores solares tienen capacidad de utilizar la radiacion directa, su capacidad de usar radiacion difusa depende del factor de concentracion de la radiacion que los caracteriza. Otra distincion que se puede hacer es la medicion de diferentes partes del espectro. No es sencillo predecir el valor de la radiacion solar en un sitio o momento dado, esto tiene implicaciones en el diseno de instalaciones solares, las cuales se construyen para operar durante un numero grande de anos.

  15. Evolutionary replacement of UV vision by violet vision in fish.

    Science.gov (United States)

    Tada, Takashi; Altun, Ahmet; Yokoyama, Shozo

    2009-10-13

    The vertebrate ancestor possessed ultraviolet (UV) vision and many species have retained it during evolution. Many other species switched to violet vision and, then again, some avian species switched back to UV vision. These UV and violet vision are mediated by short wavelength-sensitive (SWS1) pigments that absorb light maximally (lambda(max)) at approximately 360 and 390-440 nm, respectively. It is not well understood why and how these functional changes have occurred. Here, we cloned the pigment of scabbardfish (Lepidopus fitchi) with a lambda(max) of 423 nm, an example of violet-sensitive SWS1 pigment in fish. Mutagenesis experiments and quantum mechanical/molecular mechanical (QM/MM) computations show that the violet-sensitivity was achieved by the deletion of Phe-86 that converted the unprotonated Schiff base-linked 11-cis-retinal to a protonated form. The finding of a violet-sensitive SWS1 pigment in scabbardfish suggests that many other fish also have orthologous violet pigments. The isolation and comparison of such violet and UV pigments in fish living in different ecological habitats will open an unprecedented opportunity to elucidate not only the molecular basis of phenotypic adaptations, but also the genetics of UV and violet vision.

  16. Vision Loss in Older Adults.

    Science.gov (United States)

    Pelletier, Allen L; Rojas-Roldan, Ledy; Coffin, Janis

    2016-08-01

    Vision loss affects 37 million Americans older than 50 years and one in four who are older than 80 years. The U.S. Preventive Services Task Force concludes that current evidence is insufficient to assess the balance of benefits and harms of screening for impaired visual acuity in adults older than 65 years. However, family physicians play a critical role in identifying persons who are at risk of vision loss, counseling patients, and referring patients for disease-specific treatment. The conditions that cause most cases of vision loss in older patients are age-related macular degeneration, glaucoma, ocular complications of diabetes mellitus, and age-related cataracts. Vitamin supplements can delay the progression of age-related macular degeneration. Intravitreal injection of a vascular endothelial growth factor inhibitor can preserve vision in the neovascular form of macular degeneration. Medicated eye drops reduce intraocular pressure and can delay the progression of vision loss in patients with glaucoma, but adherence to treatment is poor. Laser trabeculoplasty also lowers intraocular pressure and preserves vision in patients with primary open-angle glaucoma, but long-term studies are needed to identify who is most likely to benefit from surgery. Tight glycemic control in adults with diabetes slows the progression of diabetic retinopathy, but must be balanced against the risks of hypoglycemia and death in older adults. Fenofibrate also slows progression of diabetic retinopathy. Panretinal photocoagulation is the mainstay of treatment for diabetic retinopathy, whereas vascular endothelial growth factor inhibitors slow vision loss resulting from diabetic macular edema. Preoperative testing before cataract surgery does not improve outcomes and is not recommended.

  17. Experimental simulation of simultaneous vision.

    Science.gov (United States)

    de Gracia, Pablo; Dorronsoro, Carlos; Sánchez-González, Álvaro; Sawides, Lucie; Marcos, Susana

    2013-01-17

    To present and validate a prototype of an optical instrument that allows experimental simulation of pure bifocal vision. To evaluate the influence of different power additions on image contrast and visual acuity. The instrument provides the eye with two superimposed images, aligned and with the same magnification, but with different defocus states. Subjects looking through the instrument are able to experience pure simultaneous vision, with adjustable refractive correction and addition power. The instrument is used to investigate the impact of the amount of addition of an ideal bifocal simultaneous vision correction, both on image contrast and on visual performance. the instrument is validated through computer simulations of the letter contrast and by equivalent optical experiments with an artificial eye (camera). Visual acuity (VA) was measured in four subjects (AGE: 34.3 ± 3.4 years; spherical error: -2.1 ± 2.7 diopters [D]) for low and high contrast letters and different amounts of addition. The largest degradation in contrast and visual acuity (∼25%) occurred for additions around ±2 D, while additions of ±4 D produced lower degradation (14%). Low additions (1-2 D) result in lower VA than high additions (3-4 D). A simultaneous vision instrument is an excellent tool to simulate bifocal vision and to gain understanding of multifocal solutions for presbyopia. Simultaneous vision induces a pattern of visual performance degradation, which is well predicted by the degradation found in image quality. Neural effects, claimed to be crucial in the patients' tolerance of simultaneous vision, can be therefore compared with pure optical effects.

  18. La construcción del objeto de estudio en el Postgrado de Desarrollo Tecnológico de la Construcción. Una línea de tiempo hasta la visión sostenible - The construction of an object of study based upon the Postgraduate Technological Development of the Building Sector. A timeline towards sustainable vision

    Directory of Open Access Journals (Sweden)

    Beatriz Hernández Santana

    2017-12-01

    Full Text Available Este trabajo se orienta a cómo conceptualizar la construcción del objeto de estudio en la formulación de los proyectos de investigación en el postgrado de desarrollo tecnológico de la construcción (PDTC bajo la metodología de la complejidad – en tanto estrategia de diseño de investigación - con el uso de métodos mixtos (cualitativos y cuantitativos. Con este criterio de investigación y desde la perspectiva sostenible, el trabajo se enmarca en una visión integral sobre la necesidad de desarrollar un proceso de investigación desde la diversidad de factores geográficos, ambientales, sociales y económicos (definidos en un tiempo y espacio específico, como condicionante de los problemas que se abordan en tales proyectos. Precisar esta estrategia desde el paradigma asumido puede contribuir a comprender como el objeto de estudio se construye en la medida en que el sujeto y el objeto aportan sus respectivas dimensiones: dinamismo-variabilidad por una parte y tiempo-espacio por otra, obteniéndose resultados donde el sujeto, en tanto sujeto social, es tomado en cuenta. Para ello, se seleccionan algunas notas docentes que aportara la doctora Dyna Guitián quien, desde la sociología y su experiencia personal, diera algunas claves en esta etapa del postgrado. A manera de ejemplo, al final del presente trabajo, el autor presenta el resumen de algunos proyectos de investigación que han sido desarrollados por egresados del postgrado y que dan cuenta de esta perspectiva en la producción del conocimiento. This work focuses on how to conceptualize the construction of the object of study in the formulation of research projects in the postgraduate study of technological development of construction (PDTC under the methodology of complexity - as a research design strategy - with the use of mixed methods (qualitative and quantitative. With this research criteria and from a sustainable perspective, this paper is framed within a comprehensive vision

  19. LA INCIDENCIA DEL FACTOR HUMANO EN EL MANTENIMIENTO

    National Research Council Canada - National Science Library

    Francisco Javier Cárcel Carrasco

    2016-01-01

    .... En este articulo, se realiza una vision basica de la funcion del mantenimiento, contemplando a continuacion el efecto humano en dicha actividad asi como diversos documentos y normativas que lo contemplan...

  20. Return of the Vision Video

    DEFF Research Database (Denmark)

    Vistisen, Peter; Poulsen, Søren Bolvig

    2017-01-01

    This paper examines the role of corporate vision videos as a possible setting for participation when exploring the future potentials (and pitfalls) of new technological concepts. We propose that through the recent decade’s rise web 2.0 platforms, and the viral effects of user sharing, the corporate...... vision video of today might take on a significantly different role than before, and act as a participatory design approach. This address the changing landscaping for participatory and user-involved design processes, in the wake of new digital forms of participation, communication and collaboration, which...... have radically changed the possible power dynamics of the production life cycle of new product developments. Through a case study, we pose the question of whether the online engagements around corporate vision videos can be viewed as a form of participation in a design process, and thus revitalize...

  1. Advances in embedded computer vision

    CERN Document Server

    Kisacanin, Branislav

    2014-01-01

    This illuminating collection offers a fresh look at the very latest advances in the field of embedded computer vision. Emerging areas covered by this comprehensive text/reference include the embedded realization of 3D vision technologies for a variety of applications, such as stereo cameras on mobile devices. Recent trends towards the development of small unmanned aerial vehicles (UAVs) with embedded image and video processing algorithms are also examined. The authoritative insights range from historical perspectives to future developments, reviewing embedded implementation, tools, technolog

  2. Visioning future emergency healthcare collaboration

    DEFF Research Database (Denmark)

    Söderholm, Hanna M.; Sonnenwald, Diane H.

    2010-01-01

    physicians, nurses, administrators, and information technology (IT) professionals working at large and small medical centers, and asked them to share their perspectives regarding 3DMC's potential benefits and disadvantages in emergency healthcare and its compatibility and/or lack thereof...... care in real time. Today only an early prototype of 3DMC exists. To better understand 3DMC's potential for adoption and use in emergency healthcare before large amounts of development resources are invested we conducted a visioning study. That is, we shared our vision of 3DMC with emergency room...

  3. the evaluation of vision in children using monocular vision acuity ...

    African Journals Online (AJOL)

    early vision screening for strabismus and amblyopia ... unsuccessful. This is due to the child's inability to cooperate during eye examination; resulting to insufficient time for the test and inaccuracy of the test results. However ... between preschool and school aged children with reduced V.A (Z = 1.047, Z = 3.84). It is thus ...

  4. Towards a cognitive definition of colour vision

    OpenAIRE

    Peter Skorupski; Lars Chittka

    2008-01-01

    In recent years, colour vision abilities have been rather generously awarded to vari-ous invertebrates and even bacteria. This uncertainty of when to diagnose colour vi-sion stems in part from confusing what colour vision can do with what it is. What col-our vision can do is discriminate wavelength independent of intensity. However, if we take this as a definition of what colour vision is, then we might indeed be obliged to conclude that some plants and bacteria have colour vision. Moreover, ...

  5. Quality Control by Artificial Vision

    Energy Technology Data Exchange (ETDEWEB)

    Lam, Edmond Y. [University of Hong Kong, The; Gleason, Shaun Scott [ORNL; Niel, Kurt S. [Upper Austria University of Applied Science, Engineering and Environmental Studies

    2010-01-01

    Computational technology has fundamentally changed many aspects of our lives. One clear evidence is the development of artificial-vision systems, which have effectively automated many manual tasks ranging from quality inspection to quantitative assessment. In many cases, these machine-vision systems are even preferred over manual ones due to their repeatability and high precision. Such advantages come from significant research efforts in advancing sensor technology, illumination, computational hardware, and image-processing algorithms. Similar to the Special Section on Quality Control by Artificial Vision published two years ago in Volume 17, Issue 3 of the Journal of Electronic Imaging, the present one invited papers relevant to fundamental technology improvements to foster quality control by artificial vision, and fine-tuned the technology for specific applications. We aim to balance both theoretical and applied work pertinent to this special section theme. Consequently, we have seven high-quality papers resulting from the stringent peer-reviewing process in place at the Journal of Electronic Imaging. Some of the papers contain extended treatment of the authors work presented at the SPIE Image Processing: Machine Vision Applications conference and the International Conference on Quality Control by Artificial Vision. On the broad application side, Liu et al. propose an unsupervised texture image segmentation scheme. Using a multilayer data condensation spectral clustering algorithm together with wavelet transform, they demonstrate the effectiveness of their approach on both texture and synthetic aperture radar images. A problem related to image segmentation is image extraction. For this, O'Leary et al. investigate the theory of polynomial moments and show how these moments can be compared to classical filters. They also show how to use the discrete polynomial-basis functions for the extraction of 3-D embossed digits, demonstrating superiority over Fourier

  6. Availability of vision and tactile gating: vision enhances tactile sensitivity.

    Science.gov (United States)

    Colino, Francisco L; Lee, Ji-Hang; Binsted, Gordon

    2017-01-01

    A multitude of events bombard our sensory systems at every moment of our lives. Thus, it is important for the sensory and motor cortices to gate unimportant events. Tactile suppression is a well-known phenomenon defined as a reduced ability to detect tactile events on the skin before and during movement. Previous experiments (Buckingham et al. in Exp Brain Res 201(3):411-419, 2010; Colino et al. in Physiol Rep 2(3):e00267, 2014) found detection rates decrease just prior to and during finger abduction and decrease according to the proximity of the moving effector. However, what effect does vision have on tactile gating? There is ample evidence (see Serino and Haggard in Neurosci Biobehav Rev 34:224-236, 2010) observing increased tactile acuity when participants see their limbs. The present study examined how tactile detection changes in response to visual condition (vision/no vision). Ten human participants used their right hand to reach and grasp a cylinder. Tactors were attached to the index finger and the forearm of both the right and left arm and vibrated at various epochs relative to a "go" tone. Results replicate previous findings from our laboratory (Colino et al. in Physiol Rep 2(3):e00267, 2014). Also, tactile acuity decreased when participants did not have vision. These results indicate that the vision affects the somatosensation via inputs from parietal areas (Konen and Haggard in Cereb Cortex 24(2):501-507, 2014) but does so in a reach-to-grasp context.

  7. Estructuralismo - neoestructuralismo y el análisis del desarrollo productivo

    Directory of Open Access Journals (Sweden)

    Shirley Benavides Vindas

    2016-12-01

    Full Text Available El presente artículo tiene como propósito fundamental explicar, a nivel teórico, las principales características del estructuralismo y del neoestructuralismo, con el fin de asumir elementos que coadyuven al análisis del desarrollo productivo cuando existe claramente identificado un centro del desenvolvimiento económico social versus una periferia deprimida y heterogénea en sus estructuras. No se busca analizar casos particulares de países o regiones, desde este enfoque. La evolución del estructuralismo (finales de la década de los cuarenta y de los cincuenta al neoestructuralismo (década de los ochenta generó que se diera en el nuevo enfoque -como paradigma alternativo al ajuste neoliberal-, una superación del paradigma estructuralista original en el que se inspiraba; e incorporaba, al análisis los ciclos económicos, las asimetrías entre los centros y las periferias, los diversos efectos de la globalización por el regionalismo abierto y la desregulación; además, incluyó tres ejes relevantes: el económico, la equidad social y la autonomía nacional, aunque su base analítica continuaba siendo estructuralista. En esta nueva etapa se plantea el desarrollo desde la transformación productiva con equidad. El artículo pretende explorar, en la teoría del enfoque estructuralista y neoestructuralista, los principales elementos de análisis que desde esta perspectiva, pueden facilitar el comportamiento de los sectores productivos y de la caracterización de territorios, además, proporciona la información necesaria para la toma de decisiones en el diseño y ejecución de políticas públicas, que eliminen las fallas de los mercados periféricos con respecto a los denominados centros y así impulsar un mayor nivel de desarrollo.

  8. Polarization Imaging and Insect Vision

    Science.gov (United States)

    Green, Adam S.; Ohmann, Paul R.; Leininger, Nick E.; Kavanaugh, James A.

    2010-01-01

    For several years we have included discussions about insect vision in the optics units of our introductory physics courses. This topic is a natural extension of demonstrations involving Brewster's reflection and Rayleigh scattering of polarized light because many insects heavily rely on optical polarization for navigation and communication.…

  9. Vision - Gateway to the brain

    CERN Multimedia

    1999-01-01

    Is the brain the result of (evolutionary) tinkering, or is it governed by natural law? How can we objectively know? What is the nature of consciousness? Vision research is spear-heading the quest and is making rapid progress with the help of new experimental, computational and theoretical tools. At the same time it is about to lead to important technical applications.

  10. Computer Vision and Mathematical Morphology

    NARCIS (Netherlands)

    Roerdink, J.B.T.M.; Kropratsch, W.; Klette, R.; Albrecht, R.

    1996-01-01

    Mathematical morphology is a theory of set mappings, modeling binary image transformations, which are invariant under the group of Euclidean translations. This framework turns out to be too restricted for many applications, in particular for computer vision where group theoretical considerations

  11. Frame Rate and Human Vision

    Science.gov (United States)

    Watson, Andrew B.

    2012-01-01

    To enhance the quality of the theatre experience, the film industry is interested in achieving higher frame rates for capture and display. In this talk I will describe the basic spatio-temporal sensitivities of human vision, and how they respond to the time sequence of static images that is fundamental to cinematic presentation.

  12. Visioning Public Education in America.

    Science.gov (United States)

    Reigeluth, Charles M.

    1999-01-01

    Discusses a process in which stakeholders in a community can engage to advance their thinking about beliefs regarding education and ideal visions of education, as a first step toward educational reform. Also presents some beliefs about education that include the roles of students, teachers, parents, administration, and the community. (LRW)

  13. Real-time vision systems

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, R.; Hernandez, J.E.; Lu, Shin-yee [Lawrence Livermore National Lab., CA (United States)

    1994-11-15

    Many industrial and defence applications require an ability to make instantaneous decisions based on sensor input of a time varying process. Such systems are referred to as `real-time systems` because they process and act on data as it occurs in time. When a vision sensor is used in a real-time system, the processing demands can be quite substantial, with typical data rates of 10-20 million samples per second. A real-time Machine Vision Laboratory (MVL) was established in FY94 to extend our years of experience in developing computer vision algorithms to include the development and implementation of real-time vision systems. The laboratory is equipped with a variety of hardware components, including Datacube image acquisition and processing boards, a Sun workstation, and several different types of CCD cameras, including monochrome and color area cameras and analog and digital line-scan cameras. The equipment is reconfigurable for prototyping different applications. This facility has been used to support several programs at LLNL, including O Division`s Peacemaker and Deadeye Projects as well as the CRADA with the U.S. Textile Industry, CAFE (Computer Aided Fabric Inspection). To date, we have successfully demonstrated several real-time applications: bullet tracking, stereo tracking and ranging, and web inspection. This work has been documented in the ongoing development of a real-time software library.

  14. SOFIA Update and Science Vision

    Science.gov (United States)

    Smith, Kimberly

    2017-01-01

    I will present an overview of the SOFIA program, its science vision and upcoming plans for the observatory. The talk will feature several scientific highlights since full operations, along with summaries of planned science observations for this coming year, platform enhancements and new instrumentation.

  15. Chandra's X-ray Vision

    Indian Academy of Sciences (India)

    1999-07-23

    Jul 23, 1999 ... GENERAL I ARTICLE. Chandra's X-ray Vision. K P Singh. Chandra X-ray Observatory (CXO) is a scientific satellite (moon/ chandra), named after the Indian-born Nobel laureate. Subrahmanyan Chandrasekhar - one of the foremost astro- physicists of the twentieth century and popularly known as. Chandra.

  16. Smart Material Interfaces: A vision

    NARCIS (Netherlands)

    Minuto, A.; Vyas, Dhaval; Poelman, Wim; Nijholt, Antinus; Camurri, Antonio; Costa, Cristine

    In this paper, we introduce a vision called Smart Material Interfaces (SMIs), which takes advantage of the latest generation of engineered materials that has a special property defined “smart‿. They are capable of changing their physical properties, such as shape, size and color, and can be

  17. Standards for vision science libraries

    OpenAIRE

    2000-01-01

    The minimum levels of staffing, services, budget, and technology that should be provided by a library specializing in vision science are presented. The scope and coverage of the collection is described as well. These standards may be used by institutions establishing libraries or by accrediting bodies reviewing existing libraries.

  18. Progress in color night vision

    NARCIS (Netherlands)

    Toet, A.; Hogervorst, M.A.

    2012-01-01

    We present an overview of our recent progress and the current state-of-the-art techniques of color image fusion for night vision applications. Inspired by previously developed color opponent fusing schemes, we initially developed a simple pixel-based false color-mapping scheme that yielded fused

  19. North American Natural Gas Vision

    Science.gov (United States)

    2005-01-01

    Pemex Comercio Internacional (Pemex International), responsible for international trade. 30 North American Natural Gas Vision In 1995, the...important, running for 710 km from Ciudad Pemex to Mérida in the Yucatan Peninsula. It was built to provide natural gas to the Mérida III combined cycle

  20. Neural architectures for stereo vision.

    Science.gov (United States)

    Parker, Andrew J; Smith, Jackson E T; Krug, Kristine

    2016-06-19

    Stereoscopic vision delivers a sense of depth based on binocular information but additionally acts as a mechanism for achieving correspondence between patterns arriving at the left and right eyes. We analyse quantitatively the cortical architecture for stereoscopic vision in two areas of macaque visual cortex. For primary visual cortex V1, the result is consistent with a module that is isotropic in cortical space with a diameter of at least 3 mm in surface extent. This implies that the module for stereo is larger than the repeat distance between ocular dominance columns in V1. By contrast, in the extrastriate cortical area V5/MT, which has a specialized architecture for stereo depth, the module for representation of stereo is about 1 mm in surface extent, so the representation of stereo in V5/MT is more compressed than V1 in terms of neural wiring of the neocortex. The surface extent estimated for stereo in V5/MT is consistent with measurements of its specialized domains for binocular disparity. Within V1, we suggest that long-range horizontal, anatomical connections form functional modules that serve both binocular and monocular pattern recognition: this common function may explain the distortion and disruption of monocular pattern vision observed in amblyopia.This article is part of the themed issue 'Vision in our three-dimensional world'. © 2016 The Authors.

  1. Visions of Vision: An Exploratory Study of the Role College and University Presidents Play in Developing Institutional Vision

    Science.gov (United States)

    McWade, Jessica C.

    2014-01-01

    This qualitative research explores how college and university presidents engage in the process of developing formal institutional vision. The inquiry identifies roles presidents play in vision development, which is often undertaken as part of strategic-planning initiatives. Two constructs of leadership and institutional vision are used to examine…

  2. Early Parkinson's May Prompt Vision Problems

    Science.gov (United States)

    ... https://medlineplus.gov/news/fullstory_167131.html Early Parkinson's May Prompt Vision Problems Changes in sight could ... in vision may be an early sign of Parkinson's disease, researchers report. The neurodegenerative condition is caused ...

  3. Vision Problems Can Harm Kids' Development, Grades

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_167475.html Vision Problems Can Harm Kids' Development, Grades Eye experts ... toll on children's school performance and well-being, vision experts say. If left untreated, certain eye-related ...

  4. Computer vision – cloud, smart or both

    OpenAIRE

    Chatwin, Chris; Young, Rupert; Birch, Philip; BangaloreManjunathamurthy, Nagachetan; Hassan, Waqas

    2012-01-01

    Bandwidth management and availability is going to improve greatly.The Cloud will become increasingly important for security and computer vision. Integration of Satellite, Fibre, Wireless. Impacts where you do the Computer Vision

  5. Computer vision and machine learning for archaeology

    NARCIS (Netherlands)

    van der Maaten, L.J.P.; Boon, P.; Lange, G.; Paijmans, J.J.; Postma, E.

    2006-01-01

    Until now, computer vision and machine learning techniques barely contributed to the archaeological domain. The use of these techniques can support archaeologists in their assessment and classification of archaeological finds. The paper illustrates the use of computer vision techniques for

  6. Uganda's Vision 2040 and Human Needs Promotion

    African Journals Online (AJOL)

    *. Abstract. In 2013 the President of Uganda Yoweri Kaguta Museveni launched Uganda's. Vision 2040, a thirty-year development master plan which has received both praise and criticism from Ugandans. Although Vision 2040 has received ...

  7. Coaching Peripheral Vision Training for Soccer Athletes

    Science.gov (United States)

    Marques, Nelson Kautzner, Jr.

    2010-01-01

    Brazilian Soccer began developing its current emphasis on peripheral vision in the late 1950s, by initiative of coach of the Canto do Rio Football Club, in Niteroi, Rio de Janeiro, a pioneer in the development of peripheral vision training in soccer players. Peripheral vision training gained world relevance when a young talent from Canto do Rio,…

  8. The many roles of vision during walking

    NARCIS (Netherlands)

    Logan, David; Kiemel, Tim; Dominici, Nadia; Cappellini, Germana; Ivanenko, Yuri; Lacquaniti, Francesco; Jeka, John J

    2010-01-01

    Vision can improve bipedal upright stability during standing and locomotion. However, during locomotion, vision supports additional behaviors such as gait cycle modulation, navigation, and obstacle avoidance. Here, we investigate how the multiple roles of vision are reflected in the dynamics of

  9. School Vision of Learning: Urban Setting

    Science.gov (United States)

    Guy, Tiffany A.

    2010-01-01

    In this paper, the author develops her school vision of learning. She explains the theories she used to help develop the vision. The author then goes into detail on the methods she will use to make her vision for a school that prepares urban students for a successful life after high school. She takes into account all the stakeholders and how they…

  10. The Vision Thing in Higher Education.

    Science.gov (United States)

    Keller, George

    1995-01-01

    It is argued that while the concept of "vision" in higher education has been met with disdain, criticism is based on misconceptions of vision's nature and role--that vision requires a charismatic administrator and that visionaries are dreamers. Educators and planners are urged to use imaginative thinking to connect the institution's and staff's…

  11. Temporary effects of alcohol on color vision

    Science.gov (United States)

    Geniusz, Maciej K.; Geniusz, Malwina; Szmigiel, Marta; Przeździecka-Dołyk, Joanna

    2017-09-01

    The color vision has been described as one to be very sensitive to the intake of several chemicals. The present research reviews the published literature that is concerned with color vision impairment due to alcohol. Most of this research considers people under long-term effects of alcohol. However, there is little information about temporary effects of alcohol on color vision. A group of ten volunteers aged 18-40 was studied. During the study levels of alcohol in the body were tested with a standard breathalyzer while color vision were studied using Farnsworth Munsell 100 Hue Color Vision Tests. Keywords: Col

  12. VISION User Guide - VISION (Verifiable Fuel Cycle Simulation) Model

    Energy Technology Data Exchange (ETDEWEB)

    Jacob J. Jacobson; Robert F. Jeffers; Gretchen E. Matthern; Steven J. Piet; Benjamin A. Baker; Joseph Grimm

    2009-08-01

    The purpose of this document is to provide a guide for using the current version of the Verifiable Fuel Cycle Simulation (VISION) model. This is a complex model with many parameters; the user is strongly encouraged to read this user guide before attempting to run the model. This model is an R&D work in progress and may contain errors and omissions. It is based upon numerous assumptions. This model is intended to assist in evaluating “what if” scenarios and in comparing fuel, reactor, and fuel processing alternatives at a systems level for U.S. nuclear power. The model is not intended as a tool for process flow and design modeling of specific facilities nor for tracking individual units of fuel or other material through the system. The model is intended to examine the interactions among the components of a fuel system as a function of time varying system parameters; this model represents a dynamic rather than steady-state approximation of the nuclear fuel system. VISION models the nuclear cycle at the system level, not individual facilities, e.g., “reactor types” not individual reactors and “separation types” not individual separation plants. Natural uranium can be enriched, which produces enriched uranium, which goes into fuel fabrication, and depleted uranium (DU), which goes into storage. Fuel is transformed (transmuted) in reactors and then goes into a storage buffer. Used fuel can be pulled from storage into either separation of disposal. If sent to separations, fuel is transformed (partitioned) into fuel products, recovered uranium, and various categories of waste. Recycled material is stored until used by its assigned reactor type. Note that recovered uranium is itself often partitioned: some RU flows with recycled transuranic elements, some flows with wastes, and the rest is designated RU. RU comes out of storage if needed to correct the U/TRU ratio in new recycled fuel. Neither RU nor DU are designated as wastes. VISION is comprised of several

  13. Computer vision in microstructural analysis

    Science.gov (United States)

    Srinivasan, Malur N.; Massarweh, W.; Hough, C. L.

    1992-01-01

    The following is a laboratory experiment designed to be performed by advanced-high school and beginning-college students. It is hoped that this experiment will create an interest in and further understanding of materials science. The objective of this experiment is to demonstrate that the microstructure of engineered materials is affected by the processing conditions in manufacture, and that it is possible to characterize the microstructure using image analysis with a computer. The principle of computer vision will first be introduced followed by the description of the system developed at Texas A&M University. This in turn will be followed by the description of the experiment to obtain differences in microstructure and the characterization of the microstructure using computer vision.

  14. New development in robot vision

    CERN Document Server

    Behal, Aman; Chung, Chi-Kit

    2015-01-01

    The field of robotic vision has advanced dramatically recently with the development of new range sensors.  Tremendous progress has been made resulting in significant impact on areas such as robotic navigation, scene/environment understanding, and visual learning. This edited book provides a solid and diversified reference source for some of the most recent important advancements in the field of robotic vision. The book starts with articles that describe new techniques to understand scenes from 2D/3D data such as estimation of planar structures, recognition of multiple objects in the scene using different kinds of features as well as their spatial and semantic relationships, generation of 3D object models, approach to recognize partially occluded objects, etc. Novel techniques are introduced to improve 3D perception accuracy with other sensors such as a gyroscope, positioning accuracy with a visual servoing based alignment strategy for microassembly, and increasing object recognition reliability using related...

  15. Basic design principles of colorimetric vision systems

    Science.gov (United States)

    Mumzhiu, Alex M.

    1998-10-01

    Color measurement is an important part of overall production quality control in textile, coating, plastics, food, paper and other industries. The color measurement instruments such as colorimeters and spectrophotometers, used for production quality control have many limitations. In many applications they cannot be used for a variety of reasons and have to be replaced with human operators. Machine vision has great potential for color measurement. The components for color machine vision systems, such as broadcast quality 3-CCD cameras, fast and inexpensive PCI frame grabbers, and sophisticated image processing software packages are available. However the machine vision industry has only started to approach the color domain. The few color machine vision systems on the market, produced by the largest machine vision manufacturers have very limited capabilities. A lack of understanding that a vision based color measurement system could fail if it ignores the basic principles of colorimetry is the main reason for the slow progress of color vision systems. the purpose of this paper is to clarify how color measurement principles have to be applied to vision systems and how the electro-optical design features of colorimeters have to be modified in order to implement them for vision systems. The subject of this presentation far exceeds the limitations of a journal paper so only the most important aspects will be discussed. An overview of the major areas of applications for colorimetric vision system will be discussed. Finally, the reasons why some customers are happy with their vision systems and some are not will be analyzed.

  16. Operational Assessment of Color Vision

    Science.gov (United States)

    2016-06-20

    University of Waterloo), Dr. Frank Kooi (The Netherlands Organisation ), Dr. (Lt Col) Jay Flottmann, Dr. (Col) Lex Brown, Lt Col Robert Forino, and Mr...results for each of the four devices. Color vision status for all subjects was based on the consensus of the test battery. Other studies often...Using the consensus of the test battery to define color status, the RCCT and CAD had the best sensitivity (identifying a color anomalous subject

  17. Machine vision theory, algorithms, practicalities

    CERN Document Server

    Davies, E R

    2005-01-01

    In the last 40 years, machine vision has evolved into a mature field embracing a wide range of applications including surveillance, automated inspection, robot assembly, vehicle guidance, traffic monitoring and control, signature verification, biometric measurement, and analysis of remotely sensed images. While researchers and industry specialists continue to document their work in this area, it has become increasingly difficult for professionals and graduate students to understand the essential theory and practicalities well enough to design their own algorithms and systems. This book directl

  18. Dynamical Systems and Motion Vision.

    Science.gov (United States)

    1988-04-01

    TASK Artificial Inteligence Laboratory AREA I WORK UNIT NUMBERS 545 Technology Square . Cambridge, MA 02139 C\\ II. CONTROLLING OFFICE NAME ANO0 ADDRESS...INSTITUTE OF TECHNOLOGY ARTIFICIAL INTELLIGENCE LABORATORY A.I.Memo No. 1037 April, 1988 Dynamical Systems and Motion Vision Joachim Heel Abstract: In this... Artificial Intelligence L3 Laboratory of the Massachusetts Institute of Technology. Support for the Laboratory’s [1 Artificial Intelligence Research is

  19. El amor en las ciencias sociales: cuatro visiones teóricas

    Directory of Open Access Journals (Sweden)

    Tania Rodríguez Salazar

    2012-01-01

    Full Text Available Este artículo presenta un recorrido sobre cuatro enfoques teóricos relativamente definidos y cultivados por la investigación sobre el amor en las ciencias sociales: socioestructural, sociohistórico, cultural y de crítica social. Estas visiones han influido de distintas maneras en la forma en que se estudia el amor y han sentado las bases para comprender esta experiencia subjetiva a partir de sus determinantes sociales, culturales y de poder. A lo largo del texto se exponen los principales postulados de tales visiones, detallando aspectos metodológicos y hallazgos fundamentales en cada una de ellas y recuperando a los autores más destacados en este ámbito del conocimiento. Finalmente, a manera de conclusiones, se hace un balance sobre las aportaciones de estas perspectivas y sobre los retos que enfrenta la investigación del amor en las ciencias sociales.

  20. Understanding and preventing computer vision syndrome.

    Science.gov (United States)

    Loh, Ky; Redd, Sc

    2008-01-01

    The invention of computer and advancement in information technology has revolutionized and benefited the society but at the same time has caused symptoms related to its usage such as ocular sprain, irritation, redness, dryness, blurred vision and double vision. This cluster of symptoms is known as computer vision syndrome which is characterized by the visual symptoms which result from interaction with computer display or its environment. Three major mechanisms that lead to computer vision syndrome are extraocular mechanism, accommodative mechanism and ocular surface mechanism. The visual effects of the computer such as brightness, resolution, glare and quality all are known factors that contribute to computer vision syndrome. Prevention is the most important strategy in managing computer vision syndrome. Modification in the ergonomics of the working environment, patient education and proper eye care are crucial in managing computer vision syndrome.

  1. Computer vision in control systems

    CERN Document Server

    Jain, Lakhmi

    2015-01-01

    Volume 1 : This book is focused on the recent advances in computer vision methodologies and technical solutions using conventional and intelligent paradigms. The Contributions include: ·         Morphological Image Analysis for Computer Vision Applications. ·         Methods for Detecting of Structural Changes in Computer Vision Systems. ·         Hierarchical Adaptive KL-based Transform: Algorithms and Applications. ·         Automatic Estimation for Parameters of Image Projective Transforms Based on Object-invariant Cores. ·         A Way of Energy Analysis for Image and Video Sequence Processing. ·         Optimal Measurement of Visual Motion Across Spatial and Temporal Scales. ·         Scene Analysis Using Morphological Mathematics and Fuzzy Logic. ·         Digital Video Stabilization in Static and Dynamic Scenes. ·         Implementation of Hadamard Matrices for Image Processing. ·         A Generalized Criterion ...

  2. Riemannian computing in computer vision

    CERN Document Server

    Srivastava, Anuj

    2016-01-01

    This book presents a comprehensive treatise on Riemannian geometric computations and related statistical inferences in several computer vision problems. This edited volume includes chapter contributions from leading figures in the field of computer vision who are applying Riemannian geometric approaches in problems such as face recognition, activity recognition, object detection, biomedical image analysis, and structure-from-motion. Some of the mathematical entities that necessitate a geometric analysis include rotation matrices (e.g. in modeling camera motion), stick figures (e.g. for activity recognition), subspace comparisons (e.g. in face recognition), symmetric positive-definite matrices (e.g. in diffusion tensor imaging), and function-spaces (e.g. in studying shapes of closed contours).   ·         Illustrates Riemannian computing theory on applications in computer vision, machine learning, and robotics ·         Emphasis on algorithmic advances that will allow re-application in other...

  3. Information architecture. Volume 4: Vision

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The Vision document marks the transition from definition to implementation of the Department of Energy (DOE) Information Architecture Program. A description of the possibilities for the future, supported by actual experience with a process model and tool set, points toward implementation options. The directions for future information technology investments are discussed. Practical examples of how technology answers the business and information needs of the organization through coordinated and meshed data, applications, and technology architectures are related. This document is the fourth and final volume in the planned series for defining and exhibiting the DOE information architecture. The targeted scope of this document includes DOE Program Offices, field sites, contractor-operated facilities, and laboratories. This document paints a picture of how, over the next 7 years, technology may be implemented, dramatically improving the ways business is conducted at DOE. While technology is mentioned throughout this document, the vision is not about technology. The vision concerns the transition afforded by technology and the process steps to be completed to ensure alignment with business needs. This goal can be met if those directing the changing business and mission-support processes understand the capabilities afforded by architectural processes.

  4. Artificial vision: principles and prospects.

    Science.gov (United States)

    Gilhooley, Michael J; Acheson, James

    2017-02-01

    The aim of this article is to give an overview of the strategies and technologies currently under development to return vision to blind patients and will answer the question: What options exist for artificial vision in patients blind from retinal disease; how close are these to clinical practice? Retinal approaches will be the focus of this review as they are most advanced in terms not only of development, but entry into the imagination of the general public; they are technologies patients ask about, but may be less familiar to practicing neurologists.The prerequisites for retinal survivor cell stimulation are discussed, followed by consideration of the state of the art of four promising methods making use of this principle: electronic prostheses, stem cells, gene therapy and the developing field of ophthalmic optogenetics. Human applications of artificial vision by survivor cell stimulation are certainly with us in the research clinic and very close to commercialization and general use. This, together with their place in the public consciousness, makes the overview provided by this review particularly helpful to practicing neurologists.

  5. Ames vision group research overview

    Science.gov (United States)

    Watson, Andrew B.

    1990-01-01

    A major goal of the reseach group is to develop mathematical and computational models of early human vision. These models are valuable in the prediction of human performance, in the design of visual coding schemes and displays, and in robotic vision. To date researchers have models of retinal sampling, spatial processing in visual cortex, contrast sensitivity, and motion processing. Based on their models of early human vision, researchers developed several schemes for efficient coding and compression of monochrome and color images. These are pyramid schemes that decompose the image into features that vary in location, size, orientation, and phase. To determine the perceptual fidelity of these codes, researchers developed novel human testing methods that have received considerable attention in the research community. Researchers constructed models of human visual motion processing based on physiological and psychophysical data, and have tested these models through simulation and human experiments. They also explored the application of these biological algorithms to applications in automated guidance of rotorcraft and autonomous landing of spacecraft. Researchers developed networks for inhomogeneous image sampling, for pyramid coding of images, for automatic geometrical correction of disordered samples, and for removal of motion artifacts from unstable cameras.

  6. Aproximaciones al estudio del ''riesgo''

    OpenAIRE

    Gutiérrez Malaver, María Elsa

    2010-01-01

    El "riesgo" se ha constituido en objeto de investigación de diferentes disciplinas. Dichos estudios comparten el interés por conocer los aspectos que rodean la toma de riesgos por individuos, grupos o sociedades. Un breve recuento histórico ilustra los orígenes de las principales connotaciones semánticas del término, el cual tiene gran diversidad de contenidos. Se mencionan visiones sociológicas, culturales, psicológicas y educativas del riesgo así como la perspectiva de estudio desde el camp...

  7. Artificial vision support system (AVS(2)) for improved prosthetic vision.

    Science.gov (United States)

    Fink, Wolfgang; Tarbell, Mark A

    2014-11-01

    State-of-the-art and upcoming camera-driven, implanted artificial vision systems provide only tens to hundreds of electrodes, affording only limited visual perception for blind subjects. Therefore, real time image processing is crucial to enhance and optimize this limited perception. Since tens or hundreds of pixels/electrodes allow only for a very crude approximation of the typically megapixel optical resolution of the external camera image feed, the preservation and enhancement of contrast differences and transitions, such as edges, are especially important compared to picture details such as object texture. An Artificial Vision Support System (AVS(2)) is devised that displays the captured video stream in a pixelation conforming to the dimension of the epi-retinal implant electrode array. AVS(2), using efficient image processing modules, modifies the captured video stream in real time, enhancing 'present but hidden' objects to overcome inadequacies or extremes in the camera imagery. As a result, visual prosthesis carriers may now be able to discern such objects in their 'field-of-view', thus enabling mobility in environments that would otherwise be too hazardous to navigate. The image processing modules can be engaged repeatedly in a user-defined order, which is a unique capability. AVS(2) is directly applicable to any artificial vision system that is based on an imaging modality (video, infrared, sound, ultrasound, microwave, radar, etc.) as the first step in the stimulation/processing cascade, such as: retinal implants (i.e. epi-retinal, sub-retinal, suprachoroidal), optic nerve implants, cortical implants, electric tongue stimulators, or tactile stimulators.

  8. O cuidado à puérpera com HIV/AIDS no alojamento conjunto: a visão da equipe de enfermagem El cuidado a la parturiente con VIH/SIDA en el alojamiento conjunto: la visión del equipo de enfermería The care to puerperae with HIV/AIDS in the multiple-patient rooms: the vision of the nursing team

    Directory of Open Access Journals (Sweden)

    Carla Luzia França Araújo

    2012-03-01

    , en particular en las acciones de prevención de la transmisión vertical del VIH.The study aims to analyze the vision that the nursing team has on the care to HIV -positive postpartum women and implementation of prevention of vertical transmission of HIV in the rooms. It is a qualitative research approach. It was conducted in a maternity in the municipality of Nova Iguaçu / Rio de Janeiro. The collective subject discourse was used as a technical and methodological resource. After analyzing the speeches we see that the nursing staff does not have a proper approach to the postpartum seropositive. The implementation of actions developed in multiple patient rooms for the prevention of vertical transmission of HIV was not recognized by the study subjects. We conclude that there is a need for the nursing staff assisting in the multiple patient rooms to have better qualification regarding the assistance to mothers with HIV, in particular on the vertical transmission of HIV prevention actions.

  9. Vision and vision-related outcome measures in multiple sclerosis

    Science.gov (United States)

    Balcer, Laura J.; Miller, David H.; Reingold, Stephen C.

    2015-01-01

    Visual impairment is a key manifestation of multiple sclerosis. Acute optic neuritis is a common, often presenting manifestation, but visual deficits and structural loss of retinal axonal and neuronal integrity can occur even without a history of optic neuritis. Interest in vision in multiple sclerosis is growing, partially in response to the development of sensitive visual function tests, structural markers such as optical coherence tomography and magnetic resonance imaging, and quality of life measures that give clinical meaning to the structure-function correlations that are unique to the afferent visual pathway. Abnormal eye movements also are common in multiple sclerosis, but quantitative assessment methods that can be applied in practice and clinical trials are not readily available. We summarize here a comprehensive literature search and the discussion at a recent international meeting of investigators involved in the development and study of visual outcomes in multiple sclerosis, which had, as its overriding goals, to review the state of the field and identify areas for future research. We review data and principles to help us understand the importance of vision as a model for outcomes assessment in clinical practice and therapeutic trials in multiple sclerosis. PMID:25433914

  10. Women and the vision thing.

    Science.gov (United States)

    Ibarra, Herminia; Obodaru, Otilia

    2009-01-01

    Are women rated lower than men in evaluations of their leadership capabilities because of lingering gender bias? No, according to an analysis of thousands of 360-degree assessments collected by Insead's executive education program. That analysis showed that women tend to outshine men in all areas but one: vision. Unfortunately, that exception is a big one. At the top tiers of management, the ability to see opportunities, craft strategy based on a broad view of the business, and inspire others is a must-have. To explore the nature of the deficit, and whether it is a perception or reality, Insead professor Ibarra and doctoral candidate Obodaru interviewed female executives and studied the evaluation data. They developed three possible explanations. First, women may do just as much as men to shape the future but go about it in a different way; a leader who is less directive, includes more people, and shares credit might not fit people's mental model of a visionary. Second, women may believe they have less license to go out on a limb. Those who have built careers on detail-focused, shoulder-to-the-wheel execution may hesitate to stray from facts into unprovable assertions about the future. Third, women may choose not to cultivate reputations as big visionaries. Having seen bluster passed off as vision, they may dismiss the importance of selling visions. The top two candidates for the Democratic nomination for U.S. president in 2008 offer an instructive parallel. The runner-up, Hillary Clinton, was viewed as a get-it-done type with an impressive, if uninspiring, grasp of policy detail. The winner, Barack Obama, was seen as a charismatic visionary offering a hopeful, if undetailed, future. The good news is that every dimension of leadership is learned, not inborn. As more women become skilled at, and known for, envisioning the future, nothing will hold them back.

  11. Early vision and visual attention

    Directory of Open Access Journals (Sweden)

    Gvozdenović Vasilije P.

    2003-01-01

    Full Text Available The question whether visual perception is spontaneous, sudden or is running through several phases, mediated by higher cognitive processes, was raised ever since the early work of Gestalt psychologists. In the early 1980s, Treisman proposed the feature integration theory of attention (FIT, based on the findings of neuroscience. Soon after publishing her theory a new scientific approach appeared investigating several visual perception phenomena. The most widely researched were the key constructs of FIT, like types of visual search and the role of the attention. The following review describes the main studies of early vision and visual attention.

  12. Computer vision for smart library

    OpenAIRE

    Trček, Matej

    2016-01-01

    Hands-free interfaces allow us to comfortably integrate technology into mundane tasks. This thesis describes the development of an application for book cover recognition using an RGBD camera for use in a smart library. The application detects a plane within the depth image, finds the corners of a rectangle within it and alligns it with the camera plane. Computer vision techniques are used to compare the recorded image with a prepared database of book covers to find the best match. The depth i...

  13. The role of binocular vision in walking.

    Science.gov (United States)

    Hayhoe, Mary; Gillam, Barbara; Chajka, Kelly; Vecellio, Elia

    2009-01-01

    Despite the extensive investigation of binocular and stereoscopic vision, relatively little is known about its importance in natural visually guided behavior. In this paper, we explored the role of binocular vision when walking over and around obstacles. We monitored eye position during the task as an indicator of the difference between monocular and binocular performances. We found that binocular vision clearly facilitates walking performance. Walkers were slowed by about 10% in monocular vision and raised their foot higher when stepping over obstacles. Although the location and sequence of the fixations did not change in monocular vision, the timing of the fixations relative to the actions was different. Subjects spent proportionately more time fixating the obstacles and fixated longer while guiding foot placement near an obstacle. The data are consistent with greater uncertainty in monocular vision, leading to a greater reliance on feedback in the control of the movements.

  14. State of Vision Development in Slovenian Companies

    Directory of Open Access Journals (Sweden)

    Vojko Toman

    2014-05-01

    Full Text Available Vision is a prerequisite for efficient strategic planning and the effectiveness of a company. If a company has no vision (i.e., it does not know where it is heading, then it cannot build on advantages, eliminate weaknesses, exploit opportunities and avoid threats. The term ‘vision’ is often used in scientific and professional literature, but it should be noted that different authors understand the term differently and often discuss it inadequately. Many questions regarding the nature of vision arise in practice and in theory, and I answer many of them in my article. I define vision, explain the reasons for its necessity and provide its characteristics and content. I define mission and explain the main difference between vision and mission. The majority of the article presents the results of empirical research on the state of vision setting in Slovenian companies. The article highlights the way in which these terms are understood by top managers.

  15. Computer and machine vision theory, algorithms, practicalities

    CERN Document Server

    Davies, E R

    2012-01-01

    Computer and Machine Vision: Theory, Algorithms, Practicalities (previously entitled Machine Vision) clearly and systematically presents the basic methodology of computer and machine vision, covering the essential elements of the theory while emphasizing algorithmic and practical design constraints. This fully revised fourth edition has brought in more of the concepts and applications of computer vision, making it a very comprehensive and up-to-date tutorial text suitable for graduate students, researchers and R&D engineers working in this vibrant subject. Key features include: Practical examples and case studies give the 'ins and outs' of developing real-world vision systems, giving engineers the realities of implementing the principles in practice New chapters containing case studies on surveillance and driver assistance systems give practical methods on these cutting-edge applications in computer vision Necessary mathematics and essential theory are made approachable by careful explanations and well-il...

  16. Standards for vision science libraries: 2014 revision.

    Science.gov (United States)

    Motte, Kristin; Caldwell, C Brooke; Lamson, Karen S; Ferimer, Suzanne; Nims, J Chris

    2014-10-01

    This Association of Vision Science Librarians revision of the "Standards for Vision Science Libraries" aspires to provide benchmarks to address the needs for the services and resources of modern vision science libraries (academic, medical or hospital, pharmaceutical, and so on), which share a core mission, are varied by type, and are located throughout the world. Through multiple meeting discussions, member surveys, and a collaborative revision process, the standards have been updated for the first time in over a decade. While the range of types of libraries supporting vision science services, education, and research is wide, all libraries, regardless of type, share core attributes, which the standards address. The current standards can and should be used to help develop new vision science libraries or to expand the growth of existing libraries, as well as to support vision science librarians in their work to better provide services and resources to their respective users.

  17. Information Society Visions in the Nordic Countries

    DEFF Research Database (Denmark)

    Henten, Anders; Kristensen, Thomas Myrup

    2000-01-01

    This paper analyses the information society visions put forward by the governments/administrations of the Nordic countries and compares them to the visions advanced at the EU-level. The paper suggests that the information society visions constitute a kind of common ideology for almost the whole...... political spectrum although it is characterised by a high degree of neo-liberal thinking. It is further argued that there is no distinctly Nordic model for an information society....

  18. Primate photopigments and primate color vision.

    OpenAIRE

    Jacobs, G H

    1996-01-01

    The past 15 years have brought much progress in our understanding of several basic features of primate color vision. There has been particular success in cataloging the spectral properties of the cone photopigments found in retinas of a number of primate species and in elucidating the relationship between cone opsin genes and their photopigment products. Direct studies of color vision show that there are several modal patterns of color vision among groupings of primates: (i) Old World monkeys...

  19. A conceptual model for vision rehabilitation

    Science.gov (United States)

    Roberts, Pamela S.; Rizzo, John-Ross; Hreha, Kimberly; Wertheimer, Jeffrey; Kaldenberg, Jennifer; Hironaka, Dawn; Riggs, Richard; Colenbrander, August

    2017-01-01

    Vision impairments are highly prevalent after acquired brain injury (ABI). Conceptual models that focus on constructing intellectual frameworks greatly facilitate comprehension and implementation of practice guidelines in an interprofessional setting. The purpose of this article is to provide a review of the vision literature in ABI, describe a conceptual model for vision rehabilitation, explain its potential clinical inferences, and discuss its translation into rehabilitation across multiple practice settings and disciplines. PMID:27997671

  20. Low Vision Rehabilitation in Older Adults

    Directory of Open Access Journals (Sweden)

    Zuhal Özen Tunay

    2016-06-01

    Full Text Available Objectives: To evaluate the diagnosis distribution, low vision rehabilitation methods and utilization of low vision rehabilitation in partially sighted persons over 65 years old. Materials and Methods: One hundred thirty-nine partially sighted geriatric patients aged 65 years or older were enrolled to the study between May 2012 and September 2013. Patients’ age, gender and the distribution of diagnosis were recorded. The visual acuity of the patients both for near and distance were examined with and without low vision devices and the methods of low vision rehabilitation were evaluated. Results: The mean age of the patients was 79.7 years and the median age was 80 years. Ninety-six (69.1% of the patients were male and 43 (30.9% were female. According to the distribution of diagnosis, the most frequent diagnosis was senile macular degeneration for both presenile and senile age groups. The mean best corrected visual acuity for distance was 0.92±0.37 logMAR and 4.75±3.47 M for near. The most frequently used low vision rehabilitation methods were telescopic glasses (59.0% for distance and hyperocular glasses (66.9% for near vision. A significant improvement in visual acuity both for distance and near vision were determined with low vision aids. Conclusion: The causes of low vision in presenile and senile patients in our study were similar to those of patients from developed countries. A significant improvement in visual acuity can be achieved both for distance and near vision with low vision rehabilitation in partially sighted geriatric patients. It is important to guide them to low vision rehabilitation.

  1. Artificial Vision, New Visual Modalities and Neuroadaptation

    OpenAIRE

    Hilmi Or

    2012-01-01

    To study the descriptions from which artificial vision derives, to explore the new visual modalities resulting from eye surgeries and diseases, and to gain awareness of the use of machine vision systems for both enhancement of visual perception and better understanding of neuroadaptation. Science could not define until today what vision is. However, some optical-based systems and definitions have been established considering some factors for the formation of seeing. The best known...

  2. Night vision: changing the way we drive

    Science.gov (United States)

    Klapper, Stuart H.; Kyle, Robert J. S.; Nicklin, Robert L.; Kormos, Alexander L.

    2001-03-01

    A revolutionary new Night Vision System has been designed to help drivers see well beyond their headlights. From luxury automobiles to heavy trucks, Night Vision is helping drivers see better, see further, and react sooner. This paper describes how Night Vision Systems are being used in transportation and their viability for the future. It describes recent improvements to the system currently in the second year of production. It also addresses consumer education and awareness, cost reduction, product reliability, market expansion and future improvements.

  3. Binocular Vision and the Stroop Test

    National Research Council Canada - National Science Library

    Daniel, François; Kapoula, Zoï

    .... This study examines the correlations between optometric tests of binocular vision, namely, of vergence and accommodation, reading speed, and cognitive executive functions as measured by the Stroop test...

  4. Color in Computer Vision Fundamentals and Applications

    CERN Document Server

    Gevers, Theo; van de Weijer, Joost; Geusebroek, Jan-Mark

    2012-01-01

    While the field of computer vision drives many of today’s digital technologies and communication networks, the topic of color has emerged only recently in most computer vision applications. One of the most extensive works to date on color in computer vision, this book provides a complete set of tools for working with color in the field of image understanding. Based on the authors’ intense collaboration for more than a decade and drawing on the latest thinking in the field of computer science, the book integrates topics from color science and computer vision, clearly linking theor

  5. Applications of AI, machine vision and robotics

    CERN Document Server

    Boyer, Kim; Bunke, H

    1995-01-01

    This text features a broad array of research efforts in computer vision including low level processing, perceptual organization, object recognition and active vision. The volume's nine papers specifically report on topics such as sensor confidence, low level feature extraction schemes, non-parametric multi-scale curve smoothing, integration of geometric and non-geometric attributes for object recognition, design criteria for a four degree-of-freedom robot head, a real-time vision system based on control of visual attention and a behavior-based active eye vision system. The scope of the book pr

  6. INNOVATION OF ENTERPRISE VISION TOWARD SOCIAL RESPONSIBILITY

    Directory of Open Access Journals (Sweden)

    Tjaša Štrukelj

    2012-12-01

    Full Text Available Businesses need new bases and methods taking in account new values, culture, ethics, and norms (VCEN of humans, leading both humans and businesses to their own requisite holism. This covers also enterprise governance and management and their predisposition to (responsible enterprise vision (and resulting enterprise policy we studied. Thus we are researching the formation and development of enterprise vision, the period and wholeness of which are relative. In our discussion we originated in different definitions of vision andwe showed a possible development path for it, in order to direct vision towards social responsibility (SR in enterprise behaviour.

  7. específicos del desarrollo del lenguaje

    Directory of Open Access Journals (Sweden)

    Liliana Hincapié

    2007-01-01

    Full Text Available Este estudio revisa los principales enfoques de las alteraciones que pueden explicar las alteraciones del lenguaje en los niños con Trastornos Específicos del Desarrollo del Lenguaje (TEDL. Se estima que en por lo menos en un 7.4% de los niños tienen dificultades en su desarrollo del lenguaje y la mayoría de ellos no tienen otro retraso en el desarrollo. Aunque las dificultades lingüísticas aparentemente podrían ser resultas en niños con TEDL, hay un grupo de niños en los que el daño persiste a través del tiempo y a través de la edad escolar y la mayoría está relacionado con las dificultades de la lectura y la escritura; como consecuencia, pueden aparecer algunas barreras en su logro social y académico. Dos posiciones teóricas pretenden explicar las alteraciones funcionales del lenguaje de los niños que sufren Trastornos Específicos del Desarrollo del Lenguaje: el enfoque de procesamiento y el lingüístico. La visión del procesamiento sugiere que el principal problema está relacionado con la memoria operativa, mientras la visión lingüística propone que las habilidades gramaticales heredadas explican las dificultades del lenguaje. Por último, es posible concluir que los niños con Trastornos Específicos del Desarrollo del Lenguaje pueden mostrar dificultades tanto en las pruebas de repetición tanto en las habilidades gramaticales del lenguaje que puedan explicar los marcadores de las visiones del procesamiento y lingüísticas, respectivamente. La comprensión de las alteraciones en los Trastornos Específicos del Desarrollo del Lenguaje puede llevar al diseño de Estrategias Terapéuticas y educativas en los grupos de niños.

  8. Visión empresarial a través del espíritu emprendedor de los estudiantes que cursan la unidad de aprendizaje del ámbito empresarial en la UANL, FACPYA (Business vision through its entrepreneurial spirit of the students who attend the Learning Unit of the business sector in the UANL, FACPYA

    Directory of Open Access Journals (Sweden)

    Carrera, Margarita

    2016-07-01

    Full Text Available Abstract: This research aims to recognize the characteristics that form the entrepreneurship and how these essential characteristics contribute to the entrepreneurial vision of university students of the Facultad de Contaduría Pública y Administración of UANL in the development of new businesses, identifying the attributes that foster entrepreneurship, such as: the ability to face risk situations, the tools, the knowledge, the values, the abilities, the entrepreneurial profile and to demonstrate how those attributes affect the development of college students in the creation of new businesses. The collected data was obtained from a questionnaire, validated and reliable; it was examined with the statistical package SPSS-V18. Using multiple linear regression, a goodness-of-fit test of the normal distribution, heterogeneity and linearity was performed. The results show the significance of the variable (X4, the values and personality traits (X6, with a positive impact on college students in generating new business, while the study variables (X1 skills, (X2 tools, (X3 knowledge, (X5 talents, are not significant. The study was delimited to students of the Universidad Autónoma de Nuevo Leon, the scientific method was used through a quantitative and qualitative study based on a simple linear regression. Resumen: La presente investigación, tiene como finalidad conocer las características que configuran el espíritu emprendedor y de qué manera contribuyen estas características esenciales en la visión empresarial de los estudiantes universitarios de la Facultad de Contaduría Pública y Administración de la UANL, en el desarrollo de nuevos negocios, identificando los atributos que propician el espíritu emprendedor como son: las habilidades para enfrentar situaciones de riesgo, las herramientas, los conocimientos, los valores, los talentos y los rasgos de personalidad y demostrar en qué medida inciden en el desarrollo de los estudiantes

  9. What is normal binocular vision?

    Science.gov (United States)

    Crone, R A; Hardjowijoto, S

    1979-09-17

    The vergence position of the eyes is determined by the near fixation-accommodation-miosis synkinesis and the fusion mechanism. The contribution of both systems was analysed in 30 normal subjects and 16 subjects with abnormal binocular vision. Prism fixation disparity curves were determined in three different experimental situations: the routine method according to Ogle, a method to stimulate the synkinetic convergence (Experiment I, with one fixation point as sole binocular stimulus) and a method to stimulate the fusion mechanism (Experiment II, with random dot stereograms). Experiment I produced flat curves and Experiment II steep curves. The mean diameter of the horizontal Panum area was 5 minutes of arc in Experiment I and 2 degrees in Experiment II. On the basis of these findings, it was postulated that the synkinetic system operates in the absence of fixation disparity and the fusion system in the presence of fixation disparity. In Experiment II, esodisparities of 100 minutes of arc occur in a number of normal subjects. The dividing line between normal and abnormal binocular vision therefore is blurred. Normal persons can display disparities, the order of magnitude of which is equal to that of the angle of squint in micro-strabismus.

  10. Vision for 2030; Visie 2030

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-02-15

    This is the long term vision of the Dutch Transmission System Operator TenneT with respect to the 380kV and 220 kV parts of the national electricity distribution grid. In this vision 4 trend scenarios have been developed. The scenarios 'Green Revolution' and 'Sustainable transition' are based on a sustainable society whereas 'Money rules' and 'New strongholds' depict a society that mainly depends on fossil fuels. For 'Green revolution' and 'Money rules' a free global market is assumed and for 'Sustainable transition' and 'New strongholds' a regionally oriented market with protectionism is assumed. [mk]. [Dutch] Een langetermijnvisie van de Nederlandse Transmission System Operator TenneT op het 380 kV en 220kV deel van het landelijke elektriciteitstransportnet. Daarvoor zijn vier trendscenario's ontwikkeld. De scenario's Groene Revolutie en Duurzame Transitie gaan uit van een duurzame samenleving terwijl Geld Regeert en Nieuwe Burchten een samenleving hanteert die vooral afhankelijk is van fossiele brandstoffen. Voor Groene Revolutie en Geld Regeert wordt een vrije mondiale markt verondersteld en voor Duurzame Transitie en Nieuwe Burchten een regionaal georienteerde markt waarbij sprake is van protectionisme.

  11. Pengukuran Jarak Berbasiskan Stereo Vision

    Directory of Open Access Journals (Sweden)

    Iman Herwidiana Kartowisastro

    2010-12-01

    Full Text Available Measuring distance from an object can be conducted in a variety of ways, including by making use of distance measuring sensors such as ultrasonic sensors, or using the approach based vision system. This last mode has advantages in terms of flexibility, namely a monitored object has relatively no restrictions characteristic of the materials used at the same time it also has its own difficulties associated with object orientation and state of the room where the object is located. To overcome this problem, so this study examines the possibility of using stereo vision to measure the distance to an object. The system was developed starting from image extraction, information extraction characteristics of the objects contained in the image and visual distance measurement process with 2 separate cameras placed in a distance of 70 cm. The measurement object can be in the range of 50 cm - 130 cm with a percentage error of 5:53%. Lighting conditions (homogeneity and intensity has a great influence on the accuracy of the measurement results. 

  12. Vision as a user interface

    Science.gov (United States)

    Koenderink, Jan

    2011-03-01

    The egg-rolling behavior of the graylag goose is an often quoted example of a fixed-action pattern. The bird will even attempt to roll a brick back to its nest! Despite excellent visual acuity it apparently takes a brick for an egg." Evolution optimizes utility, not veridicality. Yet textbooks take it for a fact that human vision evolved so as to approach veridical perception. How do humans manage to dodge the laws of evolution? I will show that they don't, but that human vision is an idiosyncratic user interface. By way of an example I consider the case of pictorial perception. Gleaning information from still images is an important human ability and is likely to remain so for the foreseeable future. I will discuss a number of instances of extreme non-veridicality and huge inter-observer variability. Despite their importance in applications (information dissemination, personnel selection,...) such huge effects have remained undocumented in the literature, although they can be traced to artistic conventions. The reason appears to be that conventional psychophysics-by design-fails to address the qualitative, that is the meaningful, aspects of visual awareness whereas this is the very target of the visual arts.

  13. VISION 21 SYSTEMS ANALYSIS METHODOLOGIES

    Energy Technology Data Exchange (ETDEWEB)

    G.S. Samuelsen; A. Rao; F. Robson; B. Washom

    2003-08-11

    Under the sponsorship of the U.S. Department of Energy/National Energy Technology Laboratory, a multi-disciplinary team led by the Advanced Power and Energy Program of the University of California at Irvine is defining the system engineering issues associated with the integration of key components and subsystems into power plant systems that meet performance and emission goals of the Vision 21 program. The study efforts have narrowed down the myriad of fuel processing, power generation, and emission control technologies to selected scenarios that identify those combinations having the potential to achieve the Vision 21 program goals of high efficiency and minimized environmental impact while using fossil fuels. The technology levels considered are based on projected technical and manufacturing advances being made in industry and on advances identified in current and future government supported research. Included in these advanced systems are solid oxide fuel cells and advanced cycle gas turbines. The results of this investigation will serve as a guide for the U. S. Department of Energy in identifying the research areas and technologies that warrant further support.

  14. Visions for Danish bio-ethanol; Visioner for dansk bioethanol

    Energy Technology Data Exchange (ETDEWEB)

    Ahring, B.K. [BioCentrum-DTU (Denmark); Felby, C. [Det Biovidenskabelige Fakultet -KU (Denmark); Jensen, Arne [Syddansk Univ., Ledelsessekretariatet (Denmark); Nielsen, Charles [DONG Energy (Denmark); Skytte, K. [Risoe National Lab., System Analysis Dept. - DTU (Denmark); Wormslev, E.C. [NIRAS A/S (Denmark); Zinck, A.M. [Dansk Landbrug (DK)] (eds.)

    2007-02-15

    In 2006 the Danish Academy of Technical Sciences set up a working group to prepare a brief and factual presentation of visions for Danish bioenergy targeted at political actors in that area. This report presents the working group's conclusions and recommendations with focus on bioethanol. Denmark has powerful actors and good opportunities to develop and commercialize this particular type of biofuel. Bioethanol has the potential to create large gains for Denmark within supply, environment and export, and the working group considers bioethanol to be the only alternative to petrol for the transport sector in the short term. However, in order to establish Denmark as a strong and relevant partner in international development, it is crucial for the Danish actors to concentrate on a joint effort. (BA)

  15. Immagine e visione performativa nel Medioevo

    Directory of Open Access Journals (Sweden)

    Carla Bino

    2014-12-01

    Full Text Available During the Middle Ages, images had to be tied to the truth. Otherwise, they were considered idols. And the idols are always dangerous and, therefore, banned. So, to be justified, the imago had to be true or really refer to truth. It follows that the images were not considered just objects ‘to see’, but were perceived as almost ‘alive bodies’, real bodies: they could act as if were actually present. This essay studies the image concept in Christian thought, with particular attention to Eastern Europe, in connection to the patristic and conciliar sources. The result is the shift of its ontological meaning: contrary to the mimetic idea of greek-hellenistic culture, the christian image is an ‘impression of similarity’. This conceptual revolution implies change of visualization strategies, which are specifically performative: ‘seeing the icon’ is doing something which involves ‘physically’ the viewer, as if he came into a scene and became an actor.Nel Medioevo le immagini dovevano essere legate alla verità. Altrimenti erano considerate idoli. E gli idoli sono sempre pericolosi e, per questo, vietati. Dunque, per essere legittima l’imago doveva essere vera o davvero rimandare alla verità. Il risultato è che le immagini non erano considerate semplicemente oggetti ‘da guardare’, ma venivano percepite quasi come ‘corpi vivi’ e reali che potevano agire, quasi come se fossero realmente presenti. Il saggio analizza il concetto di immagine all’interno del pensiero cristiano, in particolar modo orientale, riconducendolo alle fonti patristiche e conciliari. Ciò che risulta evidente è lo spostamento del suo significato ontologico che, diversamente dalla concezione mimetica della cultura greco-ellenistica, fa dell’immagine un’‘impressione di somiglianza’. Questa rivoluzione concettuale determina anche il cambiamento delle dinamiche della visione che assume caratteristiche performative: ‘vedere l’icona’

  16. Low Vision Care: The Need to Maximise Visual Potential

    Directory of Open Access Journals (Sweden)

    Ramachandra Pararajasegaram

    2004-01-01

    Full Text Available People with low vision have residual vision with some light perception, but their vision loss does not lend itself to improvement by standard spectacles or medical or surgical treatment. Such persons have the potential for enhanced functional vision if they receive appropriate low vision care services.

  17. Managing Dreams and Ambitions: A Psychological Analysis of Vision Communication

    NARCIS (Netherlands)

    D.A. Stam (Daan)

    2008-01-01

    textabstractThe communication of inspiring visions is arguably the sine qua non of change-oriented leadership. Visions are images of the future. Vision communication refers to the expression of a vision with the aim of convincing others (usually followers) that the vision is valid. Despite the fact

  18. Implementing Vision Research in Special Needs Education

    Science.gov (United States)

    Wilhelmsen, Gunvor Birkeland; Aanstad, Monica L.; Leirvik, Eva Iren B.

    2015-01-01

    This article presents experiences from vision research implemented in education and argues for the need for teachers with visual competence and insight into suitable methods for stimulation and learning. A new type of continuing professional development (CPD) focuses on the role of vision in children's learning and development, the consequences of…

  19. Vision: A Conceptual Framework for School Counselors

    Science.gov (United States)

    Watkinson, Jennifer Scaturo

    2013-01-01

    Vision is essential to the implementation of the American School Counselor Association (ASCA) National Model. Drawing from research in organizational leadership, this article provides a conceptual framework for how school counselors can incorporate vision as a strategy for implementing school counseling programs within the context of practice.…

  20. WindVisions: first phase final report

    NARCIS (Netherlands)

    Hartogensis, O.K.; Dinther, van D.; Holtslag, A.A.M.

    2012-01-01

    It is the objective of this project to develop a Wind and Visibility Monitoring System (WindVisions) at Mainport Schiphol. WindVisions will consist of a crosswind scintillometer, which is a horizontal long range wind and visibility sensor, and a SODAR (Sound Detecting And Ranging), a vertical

  1. Assessing the binocular advantage in aided vision.

    Science.gov (United States)

    Harrington, Lawrence K; McIntire, John P; Hopper, Darrel G

    2014-09-01

    Advances in microsensors, microprocessors, and microdisplays are creating new opportunities for improving vision in degraded environments through the use of head-mounted displays. Initially, the cutting-edge technology used in these new displays will be expensive. Inevitably, the cost of providing the additional sensor and processing required to support binocularity brings the value of binocularity into question. Several assessments comparing binocular, binocular, and monocular head-mounted displays for aided vision have concluded that the additional performance, if any, provided by binocular head-mounted displays does not justify the cost. The selection of a biocular [corrected] display for use in the F-35 is a current example of this recurring decision process. It is possible that the human binocularity advantage does not carry over to the aided vision application, but more likely the experimental approaches used in the past have been too coarse to measure its subtle but important benefits. Evaluating the value of binocularity in aided vision applications requires an understanding of the characteristics of both human vision and head-mounted displays. With this understanding, the value of binocularity in aided vision can be estimated and experimental evidence can be collected to confirm or reject the presumed binocular advantage, enabling improved decisions in aided vision system design. This paper describes four computational approaches-geometry of stereopsis, modulation transfer function area for stereopsis, probability summation, and binocular summation-that may be useful in quantifying the advantage of binocularity in aided vision.

  2. Automated Vision Test Development and Validation

    Science.gov (United States)

    2016-11-01

    The design of instruments used to measure visual acuity (VA), color vision, and muscle balance in military clinical settings remains unchanged...AFRL-SA-WP-SR-2016-0020 Automated Vision Test Development and Validation Steve Wright, Darrell Rousse, Alex van Atta...James Gaska, Marc Winterbottom, Steven Hadley, Lt Col Dan Lamothe November 2016 Air Force Research Laboratory 711th Human Performance

  3. A vision for modernizing environmental risk assessment

    Science.gov (United States)

    In 2007, the US National Research Council (NRC) published a Vision and Strategy for [human health] Toxicity Testing in the 21st century. Central to the vision was increased reliance on high throughput in vitro testing and predictive approaches based on mechanistic understanding o...

  4. Field testing driver night vision devices

    NARCIS (Netherlands)

    Kooi, F.L.; Kolletzki, D.

    2007-01-01

    This paper summarizes the available methodologies to field test driver night vision devices ranging from vehicle mounted camera’s to head-mounted NVG’s. As in flight trials, a formidable challenge is to collect meaningful performance measures. Night vision systems for land and air systems show many

  5. Color Vision Deficiencies in Children. United States.

    Science.gov (United States)

    National Center for Health Statistics (DHEW/PHS), Hyattsville, MD.

    Presented are prevalence data on color vision deficiencies (color blindness) in noninstitutionalized children, aged 6-11, in the United States, as estimated from the Health Examination Survey findings on a representative sample of over 7,400 children. Described are the two color vision tests used in the survey, the Ishihara Test for Color…

  6. Investigating Teachers' Personal Visions and Beliefs: Implications ...

    African Journals Online (AJOL)

    Visions and beliefs are assumed to always shape his/her perception, attitude, focus and performance. The growing influence of constructivism in teacher education and the increase in the amount of research into teacher cognition has put the notion of beliefs and vision into central focus such that it is fast becoming a ...

  7. Tensors in image processing and computer vision

    CERN Document Server

    De Luis García, Rodrigo; Tao, Dacheng; Li, Xuelong

    2009-01-01

    Tensor signal processing is an emerging field with important applications to computer vision and image processing. This book presents the developments in this branch of signal processing, offering research and discussions by experts in the area. It is suitable for advanced students working in the area of computer vision and image processing.

  8. Literacy skills of children with low vision

    NARCIS (Netherlands)

    Gompel, M.

    2005-01-01

    The main question of the studies reported in this thesis is how the reading and spelling skills of children with low vision compare to those of their sighted peers, and which factors determine the variation in reading and spelling ability in children with low vision. In the study reported in chapter

  9. The Democratic Vision of Carl Schmitt

    DEFF Research Database (Denmark)

    Pedersen, Søren Hviid

    2013-01-01

    The main purpose of this paper is to justify two propositions. One, that Schmitt’s political vision is indeed democratic and second, that Schmitt’s democratic vision, plebiscitary or leadership democracy, is better adapted to our modern political condition and the challenges confronting modern...

  10. Pre-attentive and attentive vision module

    NARCIS (Netherlands)

    Nyamsuren, Enkhbold; Taatgen, Niels A.

    This paper introduces a new vision module, called PAAV, developed for the cognitive architecture ACT-R. Unlike ACT-R's default vision module that was originally developed for top-down perception only, PAAV was designed to model a wide range of tasks, such as visual search and scene viewing, where

  11. Computer vision in the poultry industry

    Science.gov (United States)

    Computer vision is becoming increasingly important in the poultry industry due to increasing use and speed of automation in processing operations. Growing awareness of food safety concerns has helped add food safety inspection to the list of tasks that automated computer vision can assist. Researc...

  12. Stereo 3-D Vision in Teaching Physics

    Science.gov (United States)

    Zabunov, Svetoslav

    2012-01-01

    Stereo 3-D vision is a technology used to present images on a flat surface (screen, paper, etc.) and at the same time to create the notion of three-dimensional spatial perception of the viewed scene. A great number of physical processes are much better understood when viewed in stereo 3-D vision compared to standard flat 2-D presentation. The…

  13. Non-Proliferative Diabetic Retinopathy Vision Simulator

    Science.gov (United States)

    ... Stories Español Eye Health / Eye Health A-Z Diabetic Retinopathy Sections What Is Diabetic Retinopathy? Diabetic Retinopathy Diagnosis ... Non-Proliferative Diabetic Retinopathy Vision Simulator Non-Proliferative Diabetic Retinopathy Vision Simulator Leer en Español: Simulador: Retinopatía Diabética ...

  14. CHARACTERISTICS OF THE NIGERIAN LOW VISION POPULATION

    African Journals Online (AJOL)

    INTRODUCTION. The World Health organization (WHO) has recently estimated in 2002, that there were 161 million visually impaired persons worldwide the vast majority of whom are in developing countries. (report of Oslo workshop, 2004). Low vision services, when made available to people with low vision, they can ...

  15. Blood, brain and binocular vision.

    Science.gov (United States)

    Rostron, Egle; Dickerson, Mary Polly; Heath, Gregory

    2017-01-30

    A man aged 51 years presented with sudden onset, horizontal, binocular, double vision and right facial weakness. Ocular motility examination demonstrated a right horizontal gaze palsy pattern in keeping with a one-and-a-half syndrome. Since this was associated with a concomitant, ipsilateral, lower motor neuron (LMN) facial (VIIth) cranial nerve palsy, he had acquired an eight-and-a-half syndrome. Diffusion-weighted MRI confirmed a small infarcted area in the pons of the brainstem which correlated with anatomical location of the horizontal gaze centre and VIIth cranial nerve fasciculus. As a result of this presentation, further investigations uncovered a hitherto undiagnosed blood dyscrasia-namely polycythaemia vera. Regular venesection was started which resulted in complete resolution of his ocular motility dysfunction and an improvement of his LMN facial nerve palsy. 2017 BMJ Publishing Group Ltd.

  16. Development of Moire machine vision

    Science.gov (United States)

    Harding, Kevin G.

    1987-10-01

    Three dimensional perception is essential to the development of versatile robotics systems in order to handle complex manufacturing tasks in future factories and in providing high accuracy measurements needed in flexible manufacturing and quality control. A program is described which will develop the potential of Moire techniques to provide this capability in vision systems and automated measurements, and demonstrate artificial intelligence (AI) techniques to take advantage of the strengths of Moire sensing. Moire techniques provide a means of optically manipulating the complex visual data in a three dimensional scene into a form which can be easily and quickly analyzed by computers. This type of optical data manipulation provides high productivity through integrated automation, producing a high quality product while reducing computer and mechanical manipulation requirements and thereby the cost and time of production. This nondestructive evaluation is developed to be able to make full field range measurement and three dimensional scene analysis.

  17. New Media Vision for IYA

    Science.gov (United States)

    Gay, P. L.; Koppelman, M.

    2008-11-01

    The International Year of Astronomy New Media Committee seeks to provide and promote online astronomy experiences in the places that people work, play and learn; create content that will expose people to astronomy, provide them regular content, and create special opportunities for learning; distribute content for active (pull) and passive (push) channels and through guerilla marketing technique; use a diverse suite of technologies to reach people on multiple platforms and in diverse online settings. To make these goals a reality we have brought together a diverse group of astronomy new media practitioners to both mentor grass roots efforts and spearhead national initiatives. You are invited to partner you programs with the New Media Task Group. In this paper we lay out are goals and define our vision.

  18. Development of Moire machine vision

    Science.gov (United States)

    Harding, Kevin G.

    1987-01-01

    Three dimensional perception is essential to the development of versatile robotics systems in order to handle complex manufacturing tasks in future factories and in providing high accuracy measurements needed in flexible manufacturing and quality control. A program is described which will develop the potential of Moire techniques to provide this capability in vision systems and automated measurements, and demonstrate artificial intelligence (AI) techniques to take advantage of the strengths of Moire sensing. Moire techniques provide a means of optically manipulating the complex visual data in a three dimensional scene into a form which can be easily and quickly analyzed by computers. This type of optical data manipulation provides high productivity through integrated automation, producing a high quality product while reducing computer and mechanical manipulation requirements and thereby the cost and time of production. This nondestructive evaluation is developed to be able to make full field range measurement and three dimensional scene analysis.

  19. Yarbus, Eye Movements, and Vision

    Directory of Open Access Journals (Sweden)

    Benjamin W Tatler

    2010-04-01

    Full Text Available The impact of Yarbus's research on eye movements was enormous following the translation of his book Eye Movements and Vision into English in 1967. In stark contrast, the published material in English concerning his life is scant. We provide a brief biography of Yarbus and assess his impact on contemporary approaches to research on eye movements. While early interest in his work focused on his study of stabilised retinal images, more recently this has been replaced with interest in his work on the cognitive influences on scanning patterns. We extended his experiment on the effect of instructions on viewing a picture using a portrait of Yarbus rather than a painting. The results obtained broadly supported those found by Yarbus.

  20. Dense image correspondences for computer vision

    CERN Document Server

    Liu, Ce

    2016-01-01

    This book describes the fundamental building-block of many new computer vision systems: dense and robust correspondence estimation. Dense correspondence estimation techniques are now successfully being used to solve a wide range of computer vision problems, very different from the traditional applications such techniques were originally developed to solve. This book introduces the techniques used for establishing correspondences between challenging image pairs, the novel features used to make these techniques robust, and the many problems dense correspondences are now being used to solve. The book provides information to anyone attempting to utilize dense correspondences in order to solve new or existing computer vision problems. The editors describe how to solve many computer vision problems by using dense correspondence estimation. Finally, it surveys resources, code, and data necessary for expediting the development of effective correspondence-based computer vision systems.   ·         Provides i...

  1. Prevalence of Color Vision Deficiency in Qazvin

    Directory of Open Access Journals (Sweden)

    Mohammad khalaj

    2014-01-01

    Full Text Available Background: Color vision deficiency (CVD is an X chromosome-linked recessive autosomal dominant. Determine the prevalence of color blindness in Qazvin population. Materials and Methods: In a cross sectional study color vision deficiency examined in 1853 individuals with age 10-25 years old who participated in private clinics and eye clinic of Bu-Ali hospital in Qazvin in 2010. The screening of color vision deficiency was performed using Ishihara test. Data were analyzed by SPSS-16 with χP2P test with p<0.05. Results: Mean age of participant was 17.86±4.48 years. 59.5% of them were female. 3.49% of the total population had color vision deficiency that 0.93% and 2.56% were female and male respectively. Conclusion: color vision deficiency must be noticed by decision makers in health field for screen planning.

  2. Soft Computing Techniques in Vision Science

    CERN Document Server

    Yang, Yeon-Mo

    2012-01-01

    This Special Edited Volume is a unique approach towards Computational solution for the upcoming field of study called Vision Science. From a scientific firmament Optics, Ophthalmology, and Optical Science has surpassed an Odyssey of optimizing configurations of Optical systems, Surveillance Cameras and other Nano optical devices with the metaphor of Nano Science and Technology. Still these systems are falling short of its computational aspect to achieve the pinnacle of human vision system. In this edited volume much attention has been given to address the coupling issues Computational Science and Vision Studies.  It is a comprehensive collection of research works addressing various related areas of Vision Science like Visual Perception and Visual system, Cognitive Psychology, Neuroscience, Psychophysics and Ophthalmology, linguistic relativity, color vision etc. This issue carries some latest developments in the form of research articles and presentations. The volume is rich of contents with technical tools ...

  3. Vision based systems for UAV applications

    CERN Document Server

    Kuś, Zygmunt

    2013-01-01

    This monograph is motivated by a significant number of vision based algorithms for Unmanned Aerial Vehicles (UAV) that were developed during research and development projects. Vision information is utilized in various applications like visual surveillance, aim systems, recognition systems, collision-avoidance systems and navigation. This book presents practical applications, examples and recent challenges in these mentioned application fields. The aim of the book is to create a valuable source of information for researchers and constructors of solutions utilizing vision from UAV. Scientists, researchers and graduate students involved in computer vision, image processing, data fusion, control algorithms, mechanics, data mining, navigation and IC can find many valuable, useful and practical suggestions and solutions. The latest challenges for vision based systems are also presented.

  4. Afro and Indigenous Life-Visions in/and Politics. (Decolonial Perspectives in Bolivia and Ecuador

    Directory of Open Access Journals (Sweden)

    Catherine Walsh

    2011-11-01

    Full Text Available Ancestral cosmologies or “life visions” are increasingly visible today, both within the realm of Afro and Indigenous community-based struggles, and within the frame of State constitutions, rights, and politics. This article looks at what happens when ancestral life–visions are positioned as central principles of State and of State politics and public policies. Can these philosophies, rationalities and logics otherwise guide the remaking or re–founding of society and State, and how, particularly when the authority, organization, and practice of politics and State remain bound to Western frames and capitalist interests?Hoy día, las cosmologías o “visiones ancestrales de la vida” son cada vez más visibles tanto dentro del mundo de las luchas comunitarias Afro e indígenas, como dentro del marco de las constituciones políticas del Estado, de los derechos y de la política. Este artículo examina lo que sucede cuando las “visiones ancestrales de la vida” se convierten en principios centrales del Estado, de la política, y de los órdenes públicos. ¿Pueden estas filosofías, racionalidades y lógicas, dirigir de otra manera la renovación o la re-fundación de la sociedad y del Estado, particularmente cuando la autoridad, la organización, y la práctica de la política y del Estado siguen vinculadas a marcos occidentales y a intereses capitalistas?  

  5. Vision assessment in persons with intellectual disabilities.

    Science.gov (United States)

    Eisenbarth, Werner

    2018-03-01

    To investigate the degree of visual acuity in workers with intellectual disabilities and the impact of vision on their working conditions. We recruited 224 workers (mean age 43.77 years, SD ± 12.96; range, 19-72 years) from a workshop for those with intellectual disabilities, to participate in a vision examination program. The assessment consisted of objective refraction, visual acuity, ocular motility, near-point of convergence, cover/uncover test, stereo acuity and colour perception. Individuals with vision deficits were fitted with spectacles following the screening program. Within the past three years, 38.9 per cent of the participants received eye care, 14.3 per cent of participants had not received eye care in more than three years, and 6.7 per cent had not received any eye care. As many as 39.7 per cent of participants did not know whether they had ever received eye care. Entering visual acuity for far vision was 0.52 dec (-0.29 logMAR) and 0.42 dec (-0.38 logMAR) for near vision. Only 14.9 per cent, 11 of all participants aged ≥50 years, owned spectacles for near vision before the examination. After subjective determination of refraction, best corrected visual acuity for far vision was 0.61 dec (-0.22 logMAR) and 0.56 dec (-0.25 logMAR) for near vision (in both cases with p vision deficiency was measured in 12.5 per cent of participants. Workers with intellectual disabilities are often unaware of their visual deficits. We found that some of their abnormalities can be solved by appropriate optical means and that they could benefit from regular eye care. These workers should be encouraged to be tested and to improve their vision with appropriate lenses. © 2017 Optometry Australia.

  6. Vision status among foster children in NYC: a research note.

    Science.gov (United States)

    Festinger, Trudy; Duckman, Robert H

    2004-01-01

    A summary of the results of research on the vision status of foster children. Results indicate that the vision screenings being provided at mandated annual physical examinations are not sufficiently identifying children's vision dysfunctions.

  7. Relating Shared Vision Components To Thai Public School Performance

    National Research Council Canada - National Science Library

    Sooksan Kantabutra

    2012-01-01

      While shared vision is core to the prevailing vision-based leadership theories, little is known about the relationship between performance and the characteristics of visions shared between leader and followers...

  8. Estimation of the resource and technological prospective of biomass as renewable energy in Mexico (Annexe 2 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Estimacion del recurso y prospectiva tecnologica de la biomasa como energetico renovable en Mexico (Anexo 2 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

    Energy Technology Data Exchange (ETDEWEB)

    Masera, Omar R [Centro de Investigaciones en Ecosistemas, Universidad Nacional Autonoma de Mexico, D.F.(Mexico); Agullon, Javier; Gamino, Benjamin [Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, D.F.(Mexico)

    2005-08-15

    The work that next appears is a first effort towards the estimation of the resource and technological prospective of the biomass energy as renewable energy in Mexico. It tries to give an overview considering the present situation of energy plantations, production of alcohol from biomass as well as of the production of agricultural remainders, at worldwide scale as well as in our country. The report includes very general estimations of the of biomass resource, production costs, technological analyses, costs of investment and production of energy and technological prospective to 25 years in each one of the previously mentioned headings. [Spanish] El trabajo que a continuacion se presenta es un primer esfuerzo hacia la estimacion del recurso y prospectiva tecnologica de la biomasa como energetico renovable en Mexico. Pretende dar un panorama general estimando la situacion actual de plantaciones energeticas, de produccion de alcoholes a partir de biomasa asi como de produccion de residuos agricolas, tanto a escala mundial como en nuestro pais. El informe abarca estimaciones muy generales del recurso de biomasa, costos de produccion, analisis tecnologicos, costos de inversion y de produccion de energia y prospectiva tecnologica a 25 anos en cada uno de los rubros mencionados anteriormente.

  9. Critical decisions on Cosmic Vision

    Science.gov (United States)

    2003-11-01

    Eddington had two aims, both remarkable and very pertinent to front-line astronomical interests. The first was to look for Earth-like planets outside our solar system - one of the key goals in the search to understand how life came to be, how it is that we live where we do in the universe and whether there are other potential life-supporting environments 'out there'. At the same time it was going to follow the path that the ESA-NASA mission SOHO had taken with the Sun of using astroseismology to look 'inside' stars. In the longer term, the loss of this one mission will not stop ESA and the scientific community pursuing the grand quests to which it would have contributed. The loss of the BepiColombo lander is also hard to take scientifically. ESA, in conjunction with the Japanese space agency, JAXA, will still put two orbiters around Mercury but the ‘ground truth’ provided by the lander is a big loss. However, to land on a planet so near the Sun is no small matter and was a bridge too far in present circumstances, and this chance for Europe to be first has probably been lost. The origins of the problems were recognised at the ESA Council meeting held in June. Several sudden demands on finance occurred in the spring, the most obvious and public being the unforeseen Ariane 5 grounding in January, delaying the launches of Rosetta and Smart-1. A temporary loan of EUR 100 million was granted, but must be paid back out of present resources by the end of 2006. ESA's SPC was therefore caught in a vice. Immediate mission starts had to be severely limited and the overall envelope of the programme contained. With this week’s decisions, the SPC has brought the scope of the Cosmic Vision programme down to a level that necessarily reflects the financial conditions rather than the ambitions of the scientific community. A long and painful discussion during the SPC meeting resulted in the conclusion that only one new mission can be started at this time, namely LISA Pathfinder

  10. Evaluation of a Portable Artificial Vision Device Among Patients With Low Vision.

    Science.gov (United States)

    Moisseiev, Elad; Mannis, Mark J

    2016-07-01

    Low vision is irreversible in many patients and constitutes a disability. When no treatment to improve vision is available, technological developments aid these patients in their daily lives. To evaluate the usefulness of a portable artificial vision device (OrCam) for patients with low vision. A prospective pilot study was conducted between July 1 and September 30, 2015, in a US ophthalmology department among 12 patients with visual impairment and best-corrected visual acuity of 20/200 or worse in their better eye. A 10-item test simulating activities of daily living was used to evaluate patients' functionality in 3 scenarios: using their best-corrected visual acuity with no low-vision aids, using low-vision aids if available, and using the portable artificial vision device. This 10-item test was devised for this study and is nonvalidated. The portable artificial vision device was tested at the patients' first visit and after 1 week of use at home. Scores on the 10-item daily function test. Among the 12 patients, scores on the 10-item test improved from a mean (SD) of 2.5 (1.6) using best-corrected visual acuity to 9.5 (0.5) using the portable artificial vision device at the first visit (mean difference, 7.0; 95% CI, 6.0-8.0; P artificial vision device were also better in the 7 patients who used other low-vision aids (9.7 [0.5] vs 6.0 [2.6], respectively; mean difference, 3.7; 95% CI, 1.5-5.9; P = .01). When patients used a portable artificial vision device, an increase in scores on a nonvalidated 10-item test of activities of daily living was seen. Further evaluations are warranted to determine the usefulness of this device among individuals with low vision.

  11. Dictionary of computer vision and image processing

    CERN Document Server

    Fisher, Robert B; Dawson-Howe, Kenneth; Fitzgibbon, Andrew; Robertson, Craig; Trucco, Emanuele; Williams, Christopher K I

    2013-01-01

    Written by leading researchers, the 2nd Edition of the Dictionary of Computer Vision & Image Processing is a comprehensive and reliable resource which now provides explanations of over 3500 of the most commonly used terms across image processing, computer vision and related fields including machine vision. It offers clear and concise definitions with short examples or mathematical precision where necessary for clarity that ultimately makes it a very usable reference for new entrants to these fields at senior undergraduate and graduate level, through to early career researchers to help build u

  12. Machine vision for real time orbital operations

    Science.gov (United States)

    Vinz, Frank L.

    1988-01-01

    Machine vision for automation and robotic operation of Space Station era systems has the potential for increasing the efficiency of orbital servicing, repair, assembly and docking tasks. A machine vision research project is described in which a TV camera is used for inputing visual data to a computer so that image processing may be achieved for real time control of these orbital operations. A technique has resulted from this research which reduces computer memory requirements and greatly increases typical computational speed such that it has the potential for development into a real time orbital machine vision system. This technique is called AI BOSS (Analysis of Images by Box Scan and Syntax).

  13. Conflictology : A Multidisciplinary Vision (Comment)

    OpenAIRE

    Vinyamata Camp, Eduard

    2010-01-01

    Peer reviewed La conflictologia es defineix com la manera d'entendre els conflictes tenint en compte totes les àrees relacionades, com ara la resolució de conflictes, la transformació i la gestió, i alhora es basa en els principis de la no-violència com a paradigma oposat a la creença que la violència és la manera de resoldre els conflictes. Així doncs, és una forma de coneixement transdisciplinari, exhaustiu i sintètic. La conflictologia és la culminació del coneixement que ens ajuda a en...

  14. Bayesian Vision for Shape Recovery

    Science.gov (United States)

    Jalobeanu, Andre

    2004-01-01

    We present a new Bayesian vision technique that aims at recovering a shape from two or more noisy observations taken under similar lighting conditions. The shape is parametrized by a piecewise linear height field, textured by a piecewise linear irradiance field, and we assume Gaussian Markovian priors for both shape vertices and irradiance variables. The observation process. also known as rendering, is modeled by a non-affine projection (e.g. perspective projection) followed by a convolution with a piecewise linear point spread function. and contamination by additive Gaussian noise. We assume that the observation parameters are calibrated beforehand. The major novelty of the proposed method consists of marginalizing out the irradiances considered as nuisance parameters, which is achieved by Laplace approximations. This reduces the inference to minimizing an energy that only depends on the shape vertices, and therefore allows an efficient Iterated Conditional Mode (ICM) optimization scheme to be implemented. A Gaussian approximation of the posterior shape density is computed, thus providing estimates both the geometry and its uncertainty. We illustrate the effectiveness of the new method by shape reconstruction results in a 2D case. A 3D version is currently under development and aims at recovering a surface from multiple images, reconstructing the topography by marginalizing out both albedo and shading.

  15. Behavioral Risk Factors - Vision & Eye Health

    Data.gov (United States)

    U.S. Department of Health & Human Services — 2005-2015. In 2013 and subsequently, one question in the core of BRFSS asks about vision: Are you blind or do you have serious difficulty seeing, even when wearing...

  16. Behavioral Risk Factors - Vision & Eye Health

    Data.gov (United States)

    U.S. Department of Health & Human Services — 2005-2016. In 2013 and subsequently, one question in the core of BRFSS asks about vision: Are you blind or do you have serious difficulty seeing, even when wearing...

  17. QUALITY ASSESSMENT OF BISCUITS USING COMPUTER VISION

    Directory of Open Access Journals (Sweden)

    Archana A. Bade

    2016-08-01

    Full Text Available As the developments and customer expectations in the high quality foods are increasing day by day, it becomes very essential for the food industries to maintain the quality of the product. Therefore it is necessary to have the quality inspection system for the product before packaging. Automation in the industry gives better inspection speed as compared to the human vision. The automation based on the computer vision is cost effective, flexible and provides one of the best alternatives for more accurate, fast inspection system. Image processing and image analysis are the vital part of the computer vision system. In this paper, we discuss real time quality inspection of the biscuits of premium class using computer vision. It contains the designing of the system, implementing, verifying it and installation of the complete system at the biscuit industry. Overall system contains Image acquisition, Preprocessing, Important feature extraction using segmentation, Color variations and Interpretation and the system hardware.

  18. Vision Hampton Roads : public responsiveness summary.

    Science.gov (United States)

    2010-02-23

    All comments submitted to Vision Hampton Roads were reviewed prior to addition to the final : document. Using this Public Responsiveness Summary, citizens will be able to see and track how : their engagement has impacted results. On the following pag...

  19. Connected and autonomous vehicles 2040 vision.

    Science.gov (United States)

    2014-07-01

    The Pennsylvania Department of Transportation (PennDOT) commissioned a one-year project, Connected and Autonomous : Vehicles 2040 Vision, with researchers at Carnegie Mellon University (CMU) to assess the implications of connected and : autonomous ve...

  20. Warning Signs of Vision Problems in Children

    Science.gov (United States)

    ... However, vision problems such as a lazy eye (amblyopia) may have no warning signs, and your child ... of your pediatrician. There may be variations in treatment that your pediatrician may recommend based on individual ...

  1. A computer vision for animal ecology.

    Science.gov (United States)

    Weinstein, Ben G

    2017-11-07

    A central goal of animal ecology is to observe species in the natural world. The cost and challenge of data collection often limit the breadth and scope of ecological study. Ecologists often use image capture to bolster data collection in time and space. However, the ability to process these images remains a bottleneck. Computer vision can greatly increase the efficiency, repeatability and accuracy of image review. Computer vision uses image features, such as colour, shape and texture to infer image content. I provide a brief primer on ecological computer vision to outline its goals, tools and applications to animal ecology. I reviewed 187 existing applications of computer vision and divided articles into ecological description, counting and identity tasks. I discuss recommendations for enhancing the collaboration between ecologists and computer scientists and highlight areas for future growth of automated image analysis. © 2017 The Author. Journal of Animal Ecology © 2017 British Ecological Society.

  2. International Conference on Computational Vision and Robotics

    CERN Document Server

    2015-01-01

    Computer Vision and Robotic is one of the most challenging areas of 21st century. Its application ranges from Agriculture to Medicine, Household applications to Humanoid, Deep-sea-application to Space application, and Industry applications to Man-less-plant. Today’s technologies demand to produce intelligent machine, which are enabling applications in various domains and services. Robotics is one such area which encompasses number of technology in it and its application is widespread. Computational vision or Machine vision is one of the most challenging tools for the robot to make it intelligent.   This volume covers chapters from various areas of Computational Vision such as Image and Video Coding and Analysis, Image Watermarking, Noise Reduction and Cancellation, Block Matching and Motion Estimation, Tracking of Deformable Object using Steerable Pyramid Wavelet Transformation, Medical Image Fusion, CT and MRI Image Fusion based on Stationary Wavelet Transform. The book also covers articles from applicati...

  3. Object categorization: computer and human vision perspectives

    National Research Council Canada - National Science Library

    Dickinson, Sven J

    2009-01-01

    .... The result of a series of four highly successful workshops on the topic, the book gathers many of the most distinguished researchers from both computer and human vision to reflect on their experience...

  4. How Diabetics Lose Vision: Molecular and Biochemical ...

    African Journals Online (AJOL)

    Diabetic patients are at risk of increased morbidity and mortality from macrovascular and microvascular complications. The increased risk of the vascular complications includes genetic factors, hyperglycaemia, hypertension, hyperlipidaemiaand oxidative stress. The mechanisms by which hyperglycaemia causes vision loss ...

  5. Computer Vision Assisted Virtual Reality Calibration

    Science.gov (United States)

    Kim, W.

    1999-01-01

    A computer vision assisted semi-automatic virtual reality (VR) calibration technology has been developed that can accurately match a virtual environment of graphically simulated three-dimensional (3-D) models to the video images of the real task environment.

  6. Coevolution of coloration and colour vision?

    National Research Council Canada - National Science Library

    Lind, Olle; Henze, Miriam J; Kelber, Almut; Osorio, Daniel

    2017-01-01

    .... Here, to illustrate how one might interpret the evolutionary significance of such differences, we used colour vision modelling based on an avian eye to evaluate the effects of variation in three...

  7. Static and dynamic postural control in low-vision and normal-vision adults

    OpenAIRE

    Tomomitsu, Mônica S.V.; Angelica Castilho Alonso; Eurica Morimoto; Bobbio, Tatiana G.; Greve,Julia M.D.

    2013-01-01

    OBJECTIVE: This study aimed to evaluate the influence of reduced visual information on postural control by comparing low-vision and normal-vision adults in static and dynamic conditions. METHODS: Twenty-five low-vision subjects and twenty-five normal sighted adults were evaluated for static and dynamic balance using four protocols: 1) the Modified Clinical Test of Sensory Interaction on Balance on firm and foam surfaces with eyes opened and closed; 2) Unilateral Stance with eyes opened and ...

  8. Monocular Vision: Occupational Limitations and Current Standards

    Science.gov (United States)

    2011-03-01

    be acquired using both monocular and binocular cues. The primary binocular cue for depth perception is stereopsis or stereoacuity. Stereopsis is based...population is unable to make use of the normal range of disparity cues (Richards 1971). Research Since stereopsis cannot occur with monocular vision...most of the relevant research on the impact of monocular vision on depth perception concerns stereopsis . As stated above, stereopsis occurs because a

  9. INNOVATION OF ENTERPRISE VISION TOWARD SOCIAL RESPONSIBILITY

    OpenAIRE

    Tjaša Štrukelj; Matjaž Mulej; Simona Sternad

    2012-01-01

    Businesses need new bases and methods taking in account new values, culture, ethics, and norms (VCEN) of humans, leading both humans and businesses to their own requisite holism. This covers also enterprise governance and management and their predisposition to (responsible) enterprise vision (and resulting enterprise policy) we studied. Thus we are researching the formation and development of enterprise vision, the period and wholeness of which are relative. In our discussion we o...

  10. Color vision in primates: Neurobiology and behavior

    OpenAIRE

    Skalníková, Petra

    2015-01-01

    Trichromacy is the condition that involves three independent channels for processing color information based on three different cone types. Most mammals have dichromatic vision, trichromacy appears in primates of the Old World (including human) and partly in the New Wold primates. This thesis focuses on the mechanisms of trichromatic vision, its evolution in primates and the comparison of the primates of the Old and New World. The neuronal mechanisms underlying both trichromatic and dichromat...

  11. COHERENT LASER VISION SYSTEM (CLVS) OPTION PHASE

    Energy Technology Data Exchange (ETDEWEB)

    Robert Clark

    1999-11-18

    The purpose of this research project was to develop a prototype fiber-optic based Coherent Laser Vision System (CLVS) suitable for DOE's EM Robotic program. The system provides three-dimensional (3D) vision for monitoring situations in which it is necessary to update the dimensional spatial data on the order of once per second. The system has total immunity to ambient lighting conditions.

  12. Manufacturing Vision Development – Process and Dialogue

    DEFF Research Database (Denmark)

    Dukovska-Popovska, Iskra

    This Ph.D. project has been conducted in the context of PRODUCTION+5 methodology for devel¬oping manufacturing visions for companies, and related to Experimental Laboratory for Production. Both have been established in the Center for Industrial Production. The empirical parts of the research...... involve case studies of three companies that are part of the MCD-process. The cases primarily are focusing on the process and the dialogue dur¬ing the manufacturing vision development....

  13. Decreased Vision and Junctional Scotoma from Pituicytoma

    Directory of Open Access Journals (Sweden)

    Nancy Huynh

    2012-05-01

    Full Text Available Pituicytomas are rare neoplasms of the sellar region. We report a case of vision loss and a junctional scotoma in a 43-year-old woman caused by compression of the optic chiasm by a pituitary tumor. The morphological and immunohistochemical characteristics of the tumor were consistent with the diagnosis of pituicytoma. The tumor was debulked surgically, and the patient’s vision improved.

  14. Low-Latency Embedded Vision Processor (LLEVS)

    Science.gov (United States)

    2016-03-01

    DP Double Precision DSP Digital Signal Processor DU Drexel University DVE Degraded Visual Environment DWT Discrete Wavelet Transform EMI...AFRL-RH-WP-TR-2016-0017 Low-Latency Embedded Vision Processor (LLEVS) Greg Cream*, Wesley Sheridan*, and Prawat Nagvajara...Embedded Vision Processor (LLEVS) 5a. CONTRACT NUMBER FA8650-15-M-6659 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 65502F 6. AUTHOR(S) Greg

  15. Static and dynamic postural control in low-vision and normal-vision adults

    Directory of Open Access Journals (Sweden)

    Mônica S.V. Tomomitsu

    2013-04-01

    Full Text Available OBJECTIVE: This study aimed to evaluate the influence of reduced visual information on postural control by comparing low-vision and normal-vision adults in static and dynamic conditions. METHODS: Twenty-five low-vision subjects and twenty-five normal sighted adults were evaluated for static and dynamic balance using four protocols: 1 the Modified Clinical Test of Sensory Interaction on Balance on firm and foam surfaces with eyes opened and closed; 2 Unilateral Stance with eyes opened and closed; 3 Tandem Walk; and 4 Step Up/Over. RESULTS: The results showed that the low-vision group presented greater body sway compared with the normal vision during balance on a foam surface (p≤0.001, the Unilateral Stance test for both limbs (p≤0.001, and the Tandem Walk test. The low-vision group showed greater step width (p≤0.001 and slower gait speed (p≤0.004. In the Step Up/Over task, low-vision participants were more cautious in stepping up (right p≤0.005 and left p≤0.009 and in executing the movement (p≤0.001. CONCLUSION: These findings suggest that visual feedback is crucial for determining balance, especially for dynamic tasks and on foam surfaces. Low-vision individuals had worse postural stability than normal-vision adults in terms of dynamic tests and balance on foam surfaces.

  16. Static and dynamic postural control in low-vision and normal-vision adults.

    Science.gov (United States)

    Tomomitsu, Mônica S V; Alonso, Angelica Castilho; Morimoto, Eurica; Bobbio, Tatiana G; Greve, Julia M D

    2013-04-01

    This study aimed to evaluate the influence of reduced visual information on postural control by comparing low-vision and normal-vision adults in static and dynamic conditions. Twenty-five low-vision subjects and twenty-five normal sighted adults were evaluated for static and dynamic balance using four protocols: 1) the Modified Clinical Test of Sensory Interaction on Balance on firm and foam surfaces with eyes opened and closed; 2) Unilateral Stance with eyes opened and closed; 3) Tandem Walk; and 4) Step Up/Over. The results showed that the low-vision group presented greater body sway compared with the normal vision during balance on a foam surface (p≤0.001), the Unilateral Stance test for both limbs (p≤0.001), and the Tandem Walk test. The low-vision group showed greater step width (p≤0.001) and slower gait speed (p≤0.004). In the Step Up/Over task, low-vision participants were more cautious in stepping up (right p≤0.005 and left p≤0.009) and in executing the movement (p≤0.001). These findings suggest that visual feedback is crucial for determining balance, especially for dynamic tasks and on foam surfaces. Low-vision individuals had worse postural stability than normal-vision adults in terms of dynamic tests and balance on foam surfaces.

  17. Peripheral Vision of Youths with Low Vision: Motion Perception, Crowding, and Visual Search

    Science.gov (United States)

    Tadin, Duje; Nyquist, Jeffrey B.; Lusk, Kelly E.; Corn, Anne L.; Lappin, Joseph S.

    2012-01-01

    Purpose. Effects of low vision on peripheral visual function are poorly understood, especially in children whose visual skills are still developing. The aim of this study was to measure both central and peripheral visual functions in youths with typical and low vision. Of specific interest was the extent to which measures of foveal function predict performance of peripheral tasks. Methods. We assessed central and peripheral visual functions in youths with typical vision (n = 7, ages 10–17) and low vision (n = 24, ages 9–18). Experimental measures used both static and moving stimuli and included visual crowding, visual search, motion acuity, motion direction discrimination, and multitarget motion comparison. Results. In most tasks, visual function was impaired in youths with low vision. Substantial differences, however, were found both between participant groups and, importantly, across different tasks within participant groups. Foveal visual acuity was a modest predictor of peripheral form vision and motion sensitivity in either the central or peripheral field. Despite exhibiting normal motion discriminations in fovea, motion sensitivity of youths with low vision deteriorated in the periphery. This contrasted with typically sighted participants, who showed improved motion sensitivity with increasing eccentricity. Visual search was greatly impaired in youths with low vision. Conclusions. Our results reveal a complex pattern of visual deficits in peripheral vision and indicate a significant role of attentional mechanisms in observed impairments. These deficits were not adequately captured by measures of foveal function, arguing for the importance of independently assessing peripheral visual function. PMID:22836766

  18. Vision 2030. A Vision for the U.S. Concrete Industry

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2001-01-01

    On September 27, 2000, the concrete industry's Strategic Development Council hosted a Concrete Vision Workshop in Chicago, Illinois. Meeting participants included over 50 concrete, cement, and other allied industry chief executive officers, presidents, vice-presidents, laboratory and industry research managers, and government representatives. Participants discussed the state of the concrete industry 30 years ago, the state of the current industry, and their vision for the United States concrete industry in 2030. Moreover, they identified specific goals to achieve the industry's Vision 2030. This document, Vision 2030, is the product of that workshop and the comments received after a broad industry review.

  19. Ultraviolet vision may be widespread in bats

    Science.gov (United States)

    Gorresen, P. Marcos; Cryan, Paul; Dalton, David C.; Wolf, Sandy; Bonaccorso, Frank

    2015-01-01

    Insectivorous bats are well known for their abilities to find and pursue flying insect prey at close range using echolocation, but they also rely heavily on vision. For example, at night bats use vision to orient across landscapes, avoid large obstacles, and locate roosts. Although lacking sharp visual acuity, the eyes of bats evolved to function at very low levels of illumination. Recent evidence based on genetics, immunohistochemistry, and laboratory behavioral trials indicated that many bats can see ultraviolet light (UV), at least at illumination levels similar to or brighter than those before twilight. Despite this growing evidence for potentially widespread UV vision in bats, the prevalence of UV vision among bats remains unknown and has not been studied outside of the laboratory. We used a Y-maze to test whether wild-caught bats could see reflected UV light and whether such UV vision functions at the dim lighting conditions typically experienced by night-flying bats. Seven insectivorous species of bats, representing five genera and three families, showed a statistically significant ‘escape-toward-the-light’ behavior when placed in the Y-maze. Our results provide compelling evidence of widespread dim-light UV vision in bats.

  20. Occupational psychophysics to establish vision requirements.

    Science.gov (United States)

    Johnson, Chris A

    2008-10-01

    To develop and implement a comprehensive procedure for determining vision requirements for different vocational and occupational tasks. Evaluations performed for more than 10 state agencies and businesses were conducted over a period of approximately 9 years. The procedure included a literature review, an assessment of potential visual functions to address, a formal job analysis, interviews with incumbent workers, obtaining advice and recommendations from subject matter experts (experienced incumbents and administrators), development of job-related simulation studies, linkage of simulation results to the job analysis, a review of appeals and critical incidents, a thorough assessment of work environments and conditions, and final recommendations. Examples of occupational simulations for quantitative job-related task performance for best-corrected visual acuity, uncorrected visual acuity, color vision, peripheral vision, the use of one vs. two eyes, naïve vs. experienced incumbents, and impoverished visual conditions are presented. Changes in task performance and confidence ratings were obtained for various levels of degraded vision. This procedure, referred to as "occupational psychophysics," provides a quantitative systematic method of defining the vision requirements for various essential job functions. In conjunction with the frequency of performance, requirements at entry to the job, safety, reasonable accommodation, alteration of the work environment, and administrative issues, this approach provides a quantitative, rational basis for establishing job-related vision requirements.

  1. Compact Autonomous Hemispheric Vision System

    Science.gov (United States)

    Pingree, Paula J.; Cunningham, Thomas J.; Werne, Thomas A.; Eastwood, Michael L.; Walch, Marc J.; Staehle, Robert L.

    2012-01-01

    Solar System Exploration camera implementations to date have involved either single cameras with wide field-of-view (FOV) and consequently coarser spatial resolution, cameras on a movable mast, or single cameras necessitating rotation of the host vehicle to afford visibility outside a relatively narrow FOV. These cameras require detailed commanding from the ground or separate onboard computers to operate properly, and are incapable of making decisions based on image content that control pointing and downlink strategy. For color, a filter wheel having selectable positions was often added, which added moving parts, size, mass, power, and reduced reliability. A system was developed based on a general-purpose miniature visible-light camera using advanced CMOS (complementary metal oxide semiconductor) imager technology. The baseline camera has a 92 FOV and six cameras are arranged in an angled-up carousel fashion, with FOV overlaps such that the system has a 360 FOV (azimuth). A seventh camera, also with a FOV of 92 , is installed normal to the plane of the other 6 cameras giving the system a > 90 FOV in elevation and completing the hemispheric vision system. A central unit houses the common electronics box (CEB) controlling the system (power conversion, data processing, memory, and control software). Stereo is achieved by adding a second system on a baseline, and color is achieved by stacking two more systems (for a total of three, each system equipped with its own filter.) Two connectors on the bottom of the CEB provide a connection to a carrier (rover, spacecraft, balloon, etc.) for telemetry, commands, and power. This system has no moving parts. The system's onboard software (SW) supports autonomous operations such as pattern recognition and tracking.

  2. Machine Vision Giving Eyes to Robots. Resources in Technology.

    Science.gov (United States)

    Technology Teacher, 1990

    1990-01-01

    This module introduces machine vision, which can be used for inspection, robot guidance and part sorting. The future for machine vision will include new technology and will bring vision systems closer to the ultimate vision processor, the human eye. Includes a student quiz, outcomes, and activities. (JOW)

  3. Characteristics of the Nigerian low vision population | Barbie ...

    African Journals Online (AJOL)

    There are no studies available to describe the epidemiology and causes of low vision in Nigeria and Africa.Aretrospective record review was conducted of low vision patients seen at the 2-weeks-per-month low vision clinic carried out at ECWAEye hospital, Kano, by the Low VISION PROGRAMME between the periods 1999 ...

  4. Provision Of Low Vision Service In The Department Of ...

    African Journals Online (AJOL)

    Provision Of Low Vision Service In The Department Of Ophthalmology University Of Calabar Teaching Hospital. B Ekpenyong, O Ndukwe. Abstract. No Abstract Keywords: Low vision services, Residual vision, Low vision assessment, Retinal dystrophies. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

  5. THE EFFECT OF VISION AND ROLE CLARITY ON TEAM PERFORMANCE

    OpenAIRE

    Lynn, Gary; Kalay, Faruk

    2015-01-01

    ABSTRACTAlthough many studies conclude that vision and role clarity are important at the organizational level, the impacts of vision and role clarity on innovation/teams have received far less attention. A strong vision and role definition can provide direction to a team and can positively impact its ability to succeed. The purpose of this research is to discuss vision components and Role Clarity, and explore their impacts on team performance. After studying the vision on a series of nine inn...

  6. Power Prospective for the period 2014-2030 of the energy sector of Mexico (Annexe 14 in 'A vision of year 2030 on the use of the renewable energies in Mexico'); Prospectiva energetica para el periodo 2014-2030 del sector energia de Mexico (Anexo 14 en 'Una vision al 2030 de la utilizacion de las energias renovables en Mexico')

    Energy Technology Data Exchange (ETDEWEB)

    Bazan Navarrete, Gerardo; Nava Palama, Esperanza [Programa Universitario de Energia, Universidad Nacional Autonoma de Mexico, Mexico, D. F. (Mexico)

    2005-08-15

    Until few past years, the only form of future forecasting was the extrapolation, based in these forecasts the objectives were indicated and plans and adequate strategies settled down to reach them, nevertheless two basic errors exist in the process. Thus, the main efforts have gone towards the modification of the historical tendency, according to the inclusion of premises and hypothesis. The results of these necessities have been the evolution of the systems of strategic planning. In them, the control points have been multiplied and the reach of the forecasts has been limited. Another result has been, the development of the mathematical and econometric models, whose pretension are the ones of considering all the important interrelations between the variables of a certain economic process, a conceived model under this philosophy is constituted in a mechanism that at level system we could wait for given certain real or anticipated changes in some variables and considered hypotheses. [Spanish] Hasta hace muy pocos anos, la unica forma de prevision del futuro era la extrapolacion, basada en dichas previsiones se senalaban los objetivos y se establecian los planes y estrategias adecuadas para alcanzarlos, existen sin embargo dos errores basicos en el proceso. Asi, los principales esfuerzos se han dirigido hacia la modificacion de la tendencia historica, de acuerdo a la inclusion de premisas y de hipotesis. Los resultados de estas necesidades han sido la evolucion de los sistemas de planeacion estrategica. En ellos, se han multiplicado los puntos de control y se ha limitado el alcance de las previsiones. Otro resultado ha sido, el desarrollo de los modelos matematicos y econometricos, cuya pretension es la de considerar todas las interrelaciones importantes entre las variables de un cierto proceso economico, un modelo concebido bajo esta filosofia se constituye en un mecanismo que a nivel sistema podriamos esperar dado ciertos cambios reales o previstos en algunas

  7. Vision and hearing in old age.

    Science.gov (United States)

    Bergman, B; Rosenhall, U

    2001-01-01

    The concomitant occurrence of hearing and visual impairment was investigated as part of an epidemiological longitudinal study of elderly people. An age cohort. originally consisting of 973 elderly people, was examined with visual and hearing tests three times at ages 70, 81-82 and 88. The best-corrected visual acuity was assessed. The hearing was measured by pure-tone audiometry and whispered and spoken voice (WSV). At age 70 there was no co-existence of visual and hearing impairments, and about 70% had normal vision and hearing. At 81-82 years 3-6% (WSV and audiometry. respectively) had low vision (VA hearing loss, and more than one-tenth had normal vision and hearing. At 88 years 8-13% had low vision and moderate to severe hearing loss, and none of the men and less than one-tenth of the women had normal vision and hearing. At age 88 three times as many women as men had the combination of low vision and normal hearing. Normal vision with the combination of moderate to severe hearing loss was more often found in 88-year-old men. Mild impairments of the two senses were found in 0.5% at age 70 in 22%, 11% (WSV, audiometry) at age 81-82 and in 23%, 9% at age 88 years. At age 70 there was a statistical correlation between visual acuity and hearing measured with pure-tone audiometry in the male group. Those men with better hearing had slightly better visual capacity than those with hearing loss. No correlations were found for women at age 70 nor for women and men at ages 81-82 and 88. Ophthalmologists and audiology physicians should cooperate closely in the rehabilitation process to reduce disability and improve function and wellbeing among the oldest old.

  8. Beyond W3C: TruVision--Enhanced Online Learning for People Blind or Vision Impaired.

    Science.gov (United States)

    Bate, Frank; Oliver, Ron

    This paper describes the design and development of TruVision, an online learning environment designed to enable blind and vision impaired students to develop skills and expertise in elementary and advanced information processing strategies to enable them to seek full-time employment within industry in such positions as administrative assistants,…

  9. Deriving projects from the organisational vision using the Vision-to ...

    African Journals Online (AJOL)

    119. Southern African Business Review Volume 13 Number 3 2009. Deriving projects from the organisational vision using the Vision-to-Projects (V2P) Framework. C. Marnewick & L. Labuschagne. ABSTRACT. Organisations initiate and execute projects at an ever-increasing rate in order to achieve their strategic intentions.

  10. Passive Night Vision Sensor Comparison for Unmanned Ground Vehicle Stereo Vision Navigation

    Science.gov (United States)

    Owens, Ken; Matthies, Larry

    2000-01-01

    One goal of the "Demo III" unmanned ground vehicle program is to enable autonomous nighttime navigation at speeds of up to 10 m.p.h. To perform obstacle detection at night with stereo vision will require night vision cameras that produce adequate image quality for the driving speeds, vehicle dynamics, obstacle sizes, and scene conditions that will be encountered. This paper analyzes the suitability of four classes of night vision cameras (3-5 micrometer cooled FLIR, 8-12 micrometer cooled FLIR, 8-12 micrometer uncooled FLIR, and image intensifiers) for night stereo vision, using criteria based on stereo matching quality, image signal to noise ratio, motion blur and synchronization capability. We find that only cooled FLIRs will enable stereo vision performance that meets the goals of the Demo III program for nighttime autonomous mobility.

  11. Vision in high-level football officials

    Science.gov (United States)

    Serra, Pedro M.; McAlinden, Colm; Barrett, Brendan T.

    2017-01-01

    Officiating in football depends, at least to some extent, upon adequate visual function. However, there is no vision standard for football officiating and the nature of the relationship between officiating performance and level of vision is unknown. As a first step in characterising this relationship, we report on the clinically-measured vision and on the perceived level of vision in elite-level, Portuguese football officials. Seventy-one referees (R) and assistant referees (AR) participated in the study, representing 92% of the total population of elite level football officials in Portugal in the 2013/2014 season. Nine of the 22 Rs (40.9%) and ten of the 49 ARs (20.4%) were international-level. Information about visual history was also gathered. Perceived vision was assessed using the preference-values-assigned-to-global-visual-status (PVVS) and the Quality-of-Vision (QoV) questionnaire. Standard clinical vision measures (including visual acuity, contrast sensitivity and stereopsis) were gathered in a subset (n = 44, 62%) of the participants. Data were analysed according to the type (R/AR) and level (international/national) of official, and Bonferroni corrections were applied to reduce the risk of type I errors. Adopting criterion for statistical significance of pvision measures in the football officials were similar to published normative values for young, adult populations and similar between R and AR. Clinically-measured vision did not differ according to officiating level. Visual acuity measured with and without a pinhole disc indicated that around one quarter of participants may be capable of better vision when officiating, as evidenced by better acuity (≥1 line of letters) using the pinhole. Amongst the clinical visual tests we used, we did not find evidence for above-average performance in elite-level football officials. Although the impact of uncorrected mild to moderate refractive error upon officiating performance is unknown, with a greater uptake of

  12. Monocular versus binocular vision in postural control.

    Science.gov (United States)

    Isotalo, Elina; Kapoula, Zoi; Feret, Pierre-Henri; Gauchon, Karine; Zamfirescu, Françoise; Gagey, Pierre-Marie

    2004-03-01

    In previous studies about the control of posture there have been controversial findings. Our aim was to examine the role of monocular and binocular vision in controlling posture in quiet stance. Twenty-eight normal subjects were tested. We used a force platform in measuring postural stability. In main experiment, postural stability was measured in four conditions: both eyes open (BEO), dominant eye open (DEO) non-dominant eye open (NDEO), and both eyes closed (BEC). In a further experiment, 11 subjects were tested in conditions where a vertical prism was placed in front of dominant eye. Prism was strong enough to cause diplopia. Our interest was to see, if diplopia affected the balance. In main experiment, at level of group the body-sway in any of the three ocular (viewing) conditions did not differ from each other. At level of individuals, binocular vision was more effective on controlling posture in only half of subjects. In prism experiment, relative to normal binocular viewing the postural stability was modified in both prism conditions, but there was no difference between monocular and binocular viewing with prism. In quiet stance and in subjects with perfect binocular vision and stereopsis, the benefit out of binocular viewing in postural stability is subject-dependent. At the level of group, monocular vision provides equally good postural stability as binocular vision.

  13. Insect photoreceptor adaptations to night vision.

    Science.gov (United States)

    Honkanen, Anna; Immonen, Esa-Ville; Salmela, Iikka; Heimonen, Kyösti; Weckström, Matti

    2017-04-05

    Night vision is ultimately about extracting information from a noisy visual input. Several species of nocturnal insects exhibit complex visually guided behaviour in conditions where most animals are practically blind. The compound eyes of nocturnal insects produce strong responses to single photons and process them into meaningful neural signals, which are amplified by specialized neuroanatomical structures. While a lot is known about the light responses and the anatomical structures that promote pooling of responses to increase sensitivity, there is still a dearth of knowledge on the physiology of night vision. Retinal photoreceptors form the first bottleneck for the transfer of visual information. In this review, we cover the basics of what is known about physiological adaptations of insect photoreceptors for low-light vision. We will also discuss major enigmas of some of the functional properties of nocturnal photoreceptors, and describe recent advances in methodologies that may help to solve them and broaden the field of insect vision research to new model animals.This article is part of the themed issue 'Vision in dim light'. © 2017 The Author(s).

  14. Flight testing an integrated synthetic vision system

    Science.gov (United States)

    Kramer, Lynda J.; Arthur, Jarvis J., III; Bailey, Randall E.; Prinzel, Lawrence J., III

    2005-05-01

    NASA's Synthetic Vision Systems (SVS) project is developing technologies with practical applications to eliminate low visibility conditions as a causal factor to civil aircraft accidents while replicating the operational benefits of clear day flight operations, regardless of the actual outside visibility condition. A major thrust of the SVS project involves the development/demonstration of affordable, certifiable display configurations that provide intuitive out-the-window terrain and obstacle information with advanced pathway guidance for transport aircraft. The SVS concept being developed at NASA encompasses the integration of tactical and strategic Synthetic Vision Display Concepts (SVDC) with Runway Incursion Prevention System (RIPS) alerting and display concepts, real-time terrain database integrity monitoring equipment (DIME), and Enhanced Vision Systems (EVS) and/or improved Weather Radar for real-time object detection and database integrity monitoring. A flight test evaluation was jointly conducted (in July and August 2004) by NASA Langley Research Center and an industry partner team under NASA's Aviation Safety and Security, Synthetic Vision System project. A Gulfstream G-V aircraft was flown over a 3-week period in the Reno/Tahoe International Airport (NV) local area and an additional 3-week period in the Wallops Flight Facility (VA) local area to evaluate integrated Synthetic Vision System concepts. The enabling technologies (RIPS, EVS and DIME) were integrated into the larger SVS concept design. This paper presents experimental methods and the high level results of this flight test.

  15. A Vision for Ice Giant Exploration

    Science.gov (United States)

    Hofstadter, M.; Simon, A.; Atreya, S.; Banfield, D.; Fortney, J.; Hayes, A.; Hedman, M.; Hospodarsky, G.; Mandt, K.; Masters, A.; hide

    2017-01-01

    From Voyager to a Vision for 2050: NASA and ESA have just completed a study of candidate missionsto Uranus and Neptune, the so-called ice giant planets. It is a Pre-Decadal Survey Study, meant to inform the next Planetary Science Decadal Survey about opportunities for missions launching in the 2020's and early 2030's. There have been no space flight missions to the ice giants since the Voyager 2 flybys of Uranus in 1986 and Neptune in 1989. This paper presents some conclusions of that study (hereafter referred to as The Study), and how the results feed into a vision for where planetary science can be in 2050. Reaching that vision will require investments in technology andground-based science in the 2020's, flight during the 2030's along with continued technological development of both ground- and space-based capabilities, and data analysis and additional flights in the 2040's. We first discuss why exploring the ice giants is important. We then summarize the science objectives identified by The Study, and our vision of the science goals for 2050. We then review some of the technologies needed to make this vision a reality.

  16. Object recognition combining vision and touch.

    Science.gov (United States)

    Corradi, Tadeo; Hall, Peter; Iravani, Pejman

    2017-01-01

    This paper explores ways of combining vision and touch for the purpose of object recognition. In particular, it focuses on scenarios when there are few tactile training samples (as these are usually costly to obtain) and when vision is artificially impaired. Whilst machine vision is a widely studied field, and machine touch has received some attention recently, the fusion of both modalities remains a relatively unexplored area. It has been suggested that, in the human brain, there exist shared multi-sensorial representations of objects. This provides robustness when one or more senses are absent or unreliable. Modern robotics systems can benefit from multi-sensorial input, in particular in contexts where one or more of the sensors perform poorly. In this paper, a recently proposed tactile recognition model was extended by integrating a simple vision system in three different ways: vector concatenation (vision feature vector and tactile feature vector), object label posterior averaging and object label posterior product. A comparison is drawn in terms of overall accuracy of recognition and in terms of how quickly (number of training samples) learning occurs. The conclusions reached are: (1) the most accurate system is "posterior product", (2) multi-modal recognition has higher accuracy to either modality alone if all visual and tactile training data are pooled together, and (3) in the case of visual impairment, multi-modal recognition "learns faster", i.e. requires fewer training samples to achieve the same accuracy as either other modality.

  17. VISION- REQUIREMENT FOR A SUCCESSFUL LEADER

    Directory of Open Access Journals (Sweden)

    Angela - Olimpia Lobonea (Oltean

    2014-12-01

    Full Text Available These people were called in the past chiefs, rulers. Now they are known as leaders. After management by objectives, strategic planning, project organization, this concept appears as a tool called "fourth generation". It is called VISION. Leadership and vision exist in the actual sense, which has become modern a few decades ago, managing to gather during this time a variety of scientific instruments. The connection between these two domains creates a certain type of leader, the visionary leader. The hypothesis from which we start is that all active leaders have a vision of what needs to be accomplished, and the inability to predict something that could be provided involves loss the capacity of the leader. Without vision, the energy reaches the lowest quotas, production decreases, terms limits are exceeded and human resources begin to dissipate.. The conclusion is that visionary leaders are endowed with multiple attributes (multiple intelligence, even if sometimes the role of intuition and unconscious in building vision at the expense of reason that is based on experience and facts is exaggerated.

  18. Correction for near vision in pseudophakic patients

    Directory of Open Access Journals (Sweden)

    Dujić Mirjana

    2004-01-01

    Full Text Available Objective of the study was to show the mean values of correction for near vision and to discuss the presbyopic correction in pseudophakic patients. Setting was the Eye department where authors work. Inclusion criteria for 55 patients were native or corrected distant vision of 0.8-1.0 on Snellen's chart; 0,6 on Jagger's chart for near vision; round pupil and good position of the implant. Biometry of the anterior chamber depth with Alcon biophysics during distant and near vision was performed in our study. „Hi square" test was carried out and it was concluded that patients younger than 59 years (41 eyes had median correction of +2.0 dsph, while patients older than 60 years (36 eyes had correction of+3.0 dsph, but it was not statistically significant. There was no statistically significant difference of the correction between pseudophakic (41 and phakic (19 eyes in patients younger than 59 years. The anterior movement of the IOL was 0.18 mm in the younger group and 0.15 mm in the older group. With good IOL movement and new materials which could have changeable refractive power, the problem of pseudophakic correction for near vision might be solved.

  19. Coevolution of coloration and colour vision?

    Science.gov (United States)

    Lind, Olle; Henze, Miriam J; Kelber, Almut; Osorio, Daniel

    2017-07-05

    The evolutionary relationship between signals and animal senses has broad significance, with potential consequences for speciation, and for the efficacy and honesty of biological communication. Here we outline current understanding of the diversity of colour vision in two contrasting groups: the phylogenetically conservative birds, and the more variable butterflies. Evidence for coevolution of colour signals and vision exists in both groups, but is limited to observations of phenotypic differences between visual systems, which might be correlated with coloration. Here, to illustrate how one might interpret the evolutionary significance of such differences, we used colour vision modelling based on an avian eye to evaluate the effects of variation in three key characters: photoreceptor spectral sensitivity, oil droplet pigmentation and the proportions of different photoreceptor types. The models predict that physiologically realistic changes in any one character will have little effect, but complementary shifts in all three can substantially affect discriminability of three types of natural spectra. These observations about the adaptive landscape of colour vision may help to explain the general conservatism of photoreceptor spectral sensitivities in birds. This approach can be extended to other types of eye and spectra to inform future work on coevolution of coloration and colour vision.This article is part of the themed issue 'Animal coloration: production, perception, function and application'. © 2017 The Author(s).

  20. Efficacy of vision therapy in children with learning disability and associated binocular vision anomalies.

    Science.gov (United States)

    Hussaindeen, Jameel Rizwana; Shah, Prerana; Ramani, Krishna Kumar; Ramanujan, Lalitha

    To report the frequency of binocular vision (BV) anomalies in children with specific learning disorders (SLD) and to assess the efficacy of vision therapy (VT) in children with a non-strabismic binocular vision anomaly (NSBVA). The study was carried out at a centre for learning disability (LD). Comprehensive eye examination and binocular vision assessment was carried out for 94 children (mean (SD) age: 15 (2.2) years) diagnosed with specific learning disorder. BV assessment was done for children with best corrected visual acuity of ≥6/9 - N6, cooperative for examination and free from any ocular pathology. For children with a diagnosis of NSBVA (n=46), 24 children were randomized to VT and no intervention was provided to the other 22 children who served as experimental controls. At the end of 10 sessions of vision therapy, BV assessment was performed for both the intervention and non-intervention groups. Binocular vision anomalies were found in 59 children (62.8%) among which 22% (n=13) had strabismic binocular vision anomalies (SBVA) and 78% (n=46) had a NSBVA. Accommodative infacility (AIF) was the commonest of the NSBVA and found in 67%, followed by convergence insufficiency (CI) in 25%. Post-vision therapy, the intervention group showed significant improvement in all the BV parameters (Wilcoxon signed rank test, p<0.05) except negative fusional vergence. Children with specific learning disorders have a high frequency of binocular vision disorders and vision therapy plays a significant role in improving the BV parameters. Children with SLD should be screened for BV anomalies as it could potentially be an added hindrance to the reading difficulty in this special population. Copyright © 2017 Spanish General Council of Optometry. Published by Elsevier España, S.L.U. All rights reserved.

  1. Centros, periferias y redes eclesiásticas en la España del siglo XX

    Directory of Open Access Journals (Sweden)

    José Ramón Rodríguez Lago

    2015-03-01

    Full Text Available El análisis del rol desempeñado por las redes eclesiásticas en las relaciones centro-periferia, en un Estado como el español, caracterizado por los debates suscitados en torno a este binomio durante una buena parte del siglo XX, nos adentra en la dimensión alcanzada por la cuestión territorial en la administración de las diócesis y provincias eclesiásticas, la promoción vocacional del clero y la selección de sus más cualificados dirigentes. La acción y el discurso de los órganos pontificios y las diversas instituciones de la Iglesia en España incidirán no sólo en el desarrollo de prácticas pastorales más atentas a las peculiaridades culturales y sociales propias de cada Iglesia local, sino también en la singular trayectoria de los diversos proyectos de construcción nacional que compitieron durante la pasada centuria.      Palabras clave: Vaticano, España, diócesis, provincia eclesiástica, regionalismo, nacionalismo.  _____________ Abstract: The analysis of the role played by the church networks in center-periphery relations in a state such as Spain, characterized by the discussions on this pair at least for most of the 20th century, takes us into the dimension reached by the territorial issue in the administration of dioceses and ecclesiastical provinces, vocational promotion of the clergy and the selection of its most qualified leaders. The action and discourse of the pontifical bodies and several institutions of the Church in Spain will impact not only in pastoral practices more alive to the social and cultural peculiarities, but also in the unique path of various nation-building projects which competed during the last century.      Keywords: Vatican, Spain, dioceses, ecclesiastical provinces, regionalism, nationalism. 

  2. Perspectiva de análisis decolonial de las visiones del desarrollo desde el territorio [recurso electrónico] : estudio de caso vereda Sopetrán, San Luis, Antioquia / Nelson Augusto Duque Arias, Carlos Iván Lopera Lopera

    OpenAIRE

    Duque Arias, Nelson Augusto; Lopera Lopera, Carlos Iván

    2013-01-01

    1 CD-ROM : il., mapas, fots. col. A partir de los años 50 se inicia el discurso sobre el desarrollo en América Latina, luego del discurso del presidente Truman en el congreso donde utiliza por primera vez el concepto de subdesarrollo para referirse a las condiciones de los países de América Latina con relación a Estados Unidos. Esto se convierte en la plataforma para la implementación de medidas y programas para la colonización de los países latinoamericanos con plataformas supranacionales...

  3. Features of the Manufacturing Vision Development Process

    DEFF Research Database (Denmark)

    Dukovska-Popovska, Iskra; Riis, Jens Ove; Boer, Harry

    2005-01-01

    This paper discusses the key features of the process of Manufacturing Vision Development, a process that enables companies to develop their future manufacturing concept. The basis for the process is a generic five-phase methodology (Riis and Johansen, 2003) developed as a result of ten years...... of action research. The methodology recommends wide participation of people from different hierarchical and functional positions, who engage in a relatively short, playful and creative process and come up with a vision (concept) for the future manufacturing system in the company. Based on three case studies...... of companies going through the initial phases of the methodology, this research identified the key features of the Manufacturing Vision Development process. The paper elaborates the key features by defining them, discussing how and when they can appear, and how they influence the process....

  4. VISION: Verifiable Fuel Cycle Simulation Model

    Energy Technology Data Exchange (ETDEWEB)

    Jacob J. Jacobson; Abdellatif M. Yacout; Gretchen E. Matthern; Steven J. Piet; David E. Shropshire

    2009-04-01

    The nuclear fuel cycle is a very complex system that includes considerable dynamic complexity as well as detail complexity. In the nuclear power realm, there are experts and considerable research and development in nuclear fuel development, separations technology, reactor physics and waste management. What is lacking is an overall understanding of the entire nuclear fuel cycle and how the deployment of new fuel cycle technologies affects the overall performance of the fuel cycle. The Advanced Fuel Cycle Initiative’s systems analysis group is developing a dynamic simulation model, VISION, to capture the relationships, timing and delays in and among the fuel cycle components to help develop an understanding of how the overall fuel cycle works and can transition as technologies are changed. This paper is an overview of the philosophy and development strategy behind VISION. The paper includes some descriptions of the model and some examples of how to use VISION.

  5. Development of a micromachined epiretinal vision prosthesis

    Science.gov (United States)

    Stieglitz, Thomas

    2009-12-01

    Microsystems engineering offers the tools to develop highly sophisticated miniaturized implants to interface with the nervous system. One challenging application field is the development of neural prostheses to restore vision in persons that have become blind by photoreceptor degeneration due to retinitis pigmentosa. The fundamental work that has been done in one approach is presented here. An epiretinal vision prosthesis has been developed that allows hybrid integration of electronics on one part of a thin and flexible substrate. Polyimide as a substrate material is proven to be non-cytotoxic. Non-hermetic encapsulation with parylene C was stable for at least 3 months in vivo. Chronic animal experiments proved spatially selective cortical activation after epiretinal stimulation with a 25-channel implant. Research results have been transferred successfully to companies that currently work on the medical device approval of these retinal vision prostheses in Europe and in the USA.

  6. Knowledge Translation in Rehabilitation: A Shared Vision.

    Science.gov (United States)

    Moore, Jennifer L; Shikako-Thomas, Keiko; Backus, Deborah

    2017-07-01

    Advances in rehabilitation provide the infrastructure for research and clinical data to improve care and patient outcomes. However, gaps between research and practice are prevalent. Knowledge translation (KT) aims to decrease the gap between research and its clinical use. This special communication summarizes KT-related proceedings from the 2016 IV STEP conference, describes current KT in rehabilitation science, and provides suggestions for its application in clinical care. We propose a vision for rehabilitation clinical practice and research that includes the development, adaptation, and implementation of evidence-based practice recommendations, which will contribute to a learning health care system. A clinical research culture that supports this vision and methods to engage key stakeholders to innovate rehabilitation science and practice are described. Through implementation of this vision, we can lead an evolution in rehabilitation practice to ultimately prevent disabilities, predict better outcomes, exploit plasticity, and promote participation.

  7. William Blake's visions and the Unio Artistica

    Directory of Open Access Journals (Sweden)

    Bo H. Lindberg

    1970-02-01

    Full Text Available To Blake art was a vision of the spiritual world, as he could talk about "Poetry, Painting & Music, the three Powers in Man of conversing with Paradise, which the flood did not Sweep away." Every work of art is an open window into eternity. God appears to man in art. Artistic inspiration is the same as the union with God. There is an unio artistica, a sister to the unio mystica. Blake accepts that reason cannot grasp the divine vision and understand it. That is why he always talks of the vision as appearing in stronger and better lineaments, and a stronger and better light than nature can produce or mortal and perishing organs can apprehend. But art can grasp it. The central conception of mysticism, the undescribable unio mystica, is present in Blake. He is a mystic. The only difference between Blake and the classical mystics is in terminology. When they say "God" Blake very often says "Art".

  8. True Visions The Emergence of Ambient Intelligence

    CERN Document Server

    Aarts, Emile

    2006-01-01

    Ambient intelligence (AI) refers to a developing technology that will increasingly make our everyday environment sensitive and responsive to our presence. The AI vision requires technology invisibly embedded in our everyday surroundings, present whenever we need it that will lead to the seamless integration of lighting, sounds, vision, domestic appliances, and personal healthcare products to enhance our living experience. Written for the non-specialist seeking an authoritative but accessible overview of this interdisciplinary field, True Visions explains how the devices making up the AI world will operate collectively using information and intelligence hidden in the wireless network connecting them. Expert contributions address key AI components such as smart materials and textiles, system architecture, mobile computing, broadband communication, and underlying issues of human-environment interactions. It seeks to unify the perspectives of scientists from diverse backgrounds ranging from the physics of materia...

  9. Near real-time stereo vision system

    Science.gov (United States)

    Anderson, Charles H. (Inventor); Matthies, Larry H. (Inventor)

    1993-01-01

    The apparatus for a near real-time stereo vision system for use with a robotic vehicle is described. The system is comprised of two cameras mounted on three-axis rotation platforms, image-processing boards, a CPU, and specialized stereo vision algorithms. Bandpass-filtered image pyramids are computed, stereo matching is performed by least-squares correlation, and confidence ranges are estimated by means of Bayes' theorem. In particular, Laplacian image pyramids are built and disparity maps are produced from the 60 x 64 level of the pyramids at rates of up to 2 seconds per image pair. The first autonomous cross-country robotic traverses (of up to 100 meters) have been achieved using the stereo vision system of the present invention with all computing done onboard the vehicle. The overall approach disclosed herein provides a unifying paradigm for practical domain-independent stereo ranging.

  10. [Stereo Vision Deterioration by Artificially Induced Aniseikonia].

    Science.gov (United States)

    Veselý, P; Synek, S

    Main purpose of this study was to evaluate effect of aniseikonia on the stereo vision. We had together 90 subjects without eye pathology with or without habitual correction. Five of them were excluded due to important anisometropia or bad visual acuity (V stereo test. The level for stereoscopy vision was set bellow 60 arc seconds. This criterion was not achieved naturally by 6 subjects, so final number of all cases was 316 (100 %). As a whole 48 subjects (15.2 %) fail after using the test with size lens on OD 1, 3 or 5 %. All 268 cases (84.8 %) had not impaired stereoscopy parallax with size lens over chosen critical level. size lens, anisometropia, aniseikonia, heterophoria, stereoscopy vision.

  11. Etiche del paesaggio

    Directory of Open Access Journals (Sweden)

    Massimo Venturi Ferriolo

    2015-11-01

    Full Text Available L’etica riflette sui rapporti fra uomo e ambiente. Indaga l’azione dell’uomo. Svela la sua visione della vita e il mondo possibile e accoglie in sé un complesso di norme morali e di costume che identificano un preciso comportamento nella vita di relazione. Si riferisce all’agire dell’individuo in una struttura sociale che lo comprende. Siamo alla ricerca di un’essenza del paesaggio indipendente dalla mera pittura, dalla rappresentazione, dall’immagine sentimentale: dalla natura sia ideale che reale. Prendere coscienza della cosa in sé, anche nei suoi aspetti ideali, significa comprenderne la complessità. Possiamo leggere quindi ogni paesaggio come realtà etica, risultato dell'operosità dell'uomo nella natura, ambito complessivo della vita: nel significato peculiare di progetto del mondo umano, che parte da lontano, da quando l'uomo ha incominciato a trasformare il proprio ambiente naturale per creare i luoghi dell'abitare, modellati con la mano e con lo spirito. La conoscenza dei paesaggi in tutta la loro complessità, a partire dal mondo antico, diventa quindi un nostro obiettivo. Questo significa superare, se non addirittura rovesciare, alcuni luoghi comuni consolidati e storicizzati: la teoria secondo la quale il paesaggio, nella sua dimensione estetica, sarebbe un'invenzione della modernità; il collegamento tra la moderna pittura di paesaggio e la nascita dei concetti estetici; la confusione tra natura e paesaggio, frequente nelle concezioni ecologico- ambientaliste; la tesi lessicale della nascita della coscienza del paesaggio, legata all'esistenza di una parola specifica che lo indichi. 

  12. Artificial Vision, New Visual Modalities and Neuroadaptation

    Directory of Open Access Journals (Sweden)

    Hilmi Or

    2012-01-01

    Full Text Available To study the descriptions from which artificial vision derives, to explore the new visual modalities resulting from eye surgeries and diseases, and to gain awareness of the use of machine vision systems for both enhancement of visual perception and better understanding of neuroadaptation. Science could not define until today what vision is. However, some optical-based systems and definitions have been established considering some factors for the formation of seeing. The best known system includes Gabor filter and Gabor patch which work on edge perception, describing the visual perception in the best known way. These systems are used today in industry and technology of machines, robots and computers to provide their "seeing". These definitions are used beyond the machinery in humans for neuroadaptation in new visual modalities after some eye surgeries or to improve the quality of some already known visual modalities. Beside this, “the blindsight” -which was not known to exist until 35 years ago - can be stimulated with visual exercises. Gabor system is a description of visual perception definable in machine vision as well as in human visual perception. This system is used today in robotic vision. There are new visual modalities which arise after some eye surgeries or with the use of some visual optical devices. Also, blindsight is a different visual modality starting to be defined even though the exact etiology is not known. In all the new visual modalities, new vision stimulating therapies using the Gabor systems can be applied. (Turk J Oph thal mol 2012; 42: 61-5

  13. Does vision work well enough for industry?

    DEFF Research Database (Denmark)

    Hagelskjær, Frederik; Krüger, Norbert; Buch, Anders Glent

    2018-01-01

    A multitude of pose estimation algorithms has been developed in the last decades and many proprietary computer vision packages exist which can simplify the setup process. Despite this, pose estimation still lacks the ease of use that robots have attained in the industry. The statement ”vision does....... From this survey, it is clear that the actual setup time of pose estimation solutions is on average between 1–2 weeks, which poses a severe hindrance for the application of pose estimation algorithms. Finally, steps required for facilitating the use of pose estimation systems are discussed that can...

  14. Technology for NASA's Planetary Science Vision 2050.

    Science.gov (United States)

    Lakew, B.; Amato, D.; Freeman, A.; Falker, J.; Turtle, Elizabeth; Green, J.; Mackwell, S.; Daou, D.

    2017-01-01

    NASAs Planetary Science Division (PSD) initiated and sponsored a very successful community Workshop held from Feb. 27 to Mar. 1, 2017 at NASA Headquarters. The purpose of the Workshop was to develop a vision of planetary science research and exploration for the next three decades until 2050. This abstract summarizes some of the salient technology needs discussed during the three-day workshop and at a technology panel on the final day. It is not meant to be a final report on technology to achieve the science vision for 2050.

  15. Vision sensing techniques in aeronautics and astronautics

    Science.gov (United States)

    Hall, E. L.

    1988-01-01

    The close relationship between sensing and other tasks in orbital space, and the integral role of vision sensing in practical aerospace applications, are illustrated. Typical space mission-vision tasks encompass the docking of space vehicles, the detection of unexpected objects, the diagnosis of spacecraft damage, and the inspection of critical spacecraft components. Attention is presently given to image functions, the 'windowing' of a view, the number of cameras required for inspection tasks, the choice of incoherent or coherent (laser) illumination, three-dimensional-to-two-dimensional model-matching, edge- and region-segmentation techniques, and motion analysis for tracking.

  16. Computational and cognitive neuroscience of vision

    CERN Document Server

    2017-01-01

    Despite a plethora of scientific literature devoted to vision research and the trend toward integrative research, the borders between disciplines remain a practical difficulty. To address this problem, this book provides a systematic and comprehensive overview of vision from various perspectives, ranging from neuroscience to cognition, and from computational principles to engineering developments. It is written by leading international researchers in the field, with an emphasis on linking multiple disciplines and the impact such synergy can lead to in terms of both scientific breakthroughs and technology innovations. It is aimed at active researchers and interested scientists and engineers in related fields.

  17. Empirical evaluation methods in computer vision

    CERN Document Server

    Christensen, Henrik I

    2002-01-01

    This book provides comprehensive coverage of methods for the empirical evaluation of computer vision techniques. The practical use of computer vision requires empirical evaluation to ensure that the overall system has a guaranteed performance. The book contains articles that cover the design of experiments for evaluation, range image segmentation, the evaluation of face recognition and diffusion methods, image matching using correlation methods, and the performance of medical image processing algorithms. Sample Chapter(s). Foreword (228 KB). Chapter 1: Introduction (505 KB). Contents: Automate

  18. Filtering and polychromatic vision in mantis shrimps: themes in visible and ultraviolet vision.

    Science.gov (United States)

    Cronin, Thomas W; Bok, Michael J; Marshall, N Justin; Caldwell, Roy L

    2014-01-01

    Stomatopod crustaceans have the most complex and diverse assortment of retinal photoreceptors of any animals, with 16 functional classes. The receptor classes are subdivided into sets responsible for ultraviolet vision, spatial vision, colour vision and polarization vision. Many of these receptor classes are spectrally tuned by filtering pigments located in photoreceptors or overlying optical elements. At visible wavelengths, carotenoproteins or similar substances are packed into vesicles used either as serial, intrarhabdomal filters or lateral filters. A single retina may contain a diversity of these filtering pigments paired with specific photoreceptors, and the pigments used vary between and within species both taxonomically and ecologically. Ultraviolet-filtering pigments in the crystalline cones serve to tune ultraviolet vision in these animals as well, and some ultraviolet receptors themselves act as birefringent filters to enable circular polarization vision. Stomatopods have reached an evolutionary extreme in their use of filter mechanisms to tune photoreception to habitat and behaviour, allowing them to extend the spectral range of their vision both deeper into the ultraviolet and further into the red.

  19. Potencial del Agua del suelo

    Directory of Open Access Journals (Sweden)

    Bustamante Heliodoro

    1986-12-01

    Full Text Available La energía potencial del agua presenta diferencias de un punto del suelo a otro; esas diferencias son las que originan el movimiento del agua de acuerdo a la tendencia universal de la materia en el sentido de moverse de donde la energía potencial es mayor a donde dicha energía es menor. En el suelo el agua en consecuencia se mueve hacia donde su energía decrece hasta lograr su estado de equilibrio. Se desprende entonces que la cantidad de energía potencial absoluta contenida en el agua, no es importante por sí misma, sino por su relación con la energía en diferentes lugares dentro del suelo. El concepto Potencial de agua del suelo es un criterio para esta energía.

  20. Movilización "es" del pensamiento divergente encuentros y desecuentros con el PRAE

    OpenAIRE

    Gómez Arias, Diana Patricia; Martínez Calderon, Lina Marcela

    2013-01-01

    Tesis (Magister en Educación). Universidad Católica de Manizales, Facultad de Educación, 2013 En un mundo móvil, movilizado y movilizador, donde las nuevas visiones apuntan y apuntalan a nuevos escenarios del conocimiento en discusiones trans e interdisciplinarias resulta indispensable que nosotras, como docentes del área de ciencias naturales y partiendo del Proyecto Ambiental Educativo, PRAE, posibilitemos espacios de aperturas y urdimbres que vinculen a los hombres con el plane...

  1. Las reformas del Estado, de las políticas sociales y de salud: Un balance del final del milenio

    Directory of Open Access Journals (Sweden)

    Gerschman Silvia

    1999-01-01

    Full Text Available El presente trabajo se propone reflexionar sobre las reformas de los sistemas de salud y de políticas sociales en el marco de las así llamadas reformas del Estado. Com esta finalidad, se busca como punto de partida condensar distintas visiones explicativas de la crisis del Estado de Bienestar, presentes en la bibliografía produzida en la década de los 90. En el corazón de la crisis, las políticas sociales se encuentran profundamente cuestionadas. Lo que pretendemos mostrar es que este argumento posee una función específica, que es la de introducir mudanzas de carácter neoliberal en la política económica y para las cuales los instrumentos económicos utilizados van a generar la abstención del Estado en el plano social, la desregulación de las economías nacionales en favor del libre mercado y, fundamentalmente, el papel sobredimensionado del mercado financiero internacional. En este contexto, son analizadas las reformas de la seguridad social y de los sistemas de salud. La última parte del trabajo tuvo por objetivo enfrentar las dificultades que las políticas sociales presentan en el contexto actual, trayendo al centro del debate un mapeamiento de las alternativas posibles para el desarrollo de las políticas sociales y de salud.

  2. Las reformas del Estado, de las políticas sociales y de salud: Un balance del final del milenio

    Directory of Open Access Journals (Sweden)

    Silvia Gerschman

    1999-04-01

    Full Text Available El presente trabajo se propone reflexionar sobre las reformas de los sistemas de salud y de políticas sociales en el marco de las así llamadas reformas del Estado. Com esta finalidad, se busca como punto de partida condensar distintas visiones explicativas de la crisis del Estado de Bienestar, presentes en la bibliografía produzida en la década de los 90. En el corazón de la crisis, las políticas sociales se encuentran profundamente cuestionadas. Lo que pretendemos mostrar es que este argumento posee una función específica, que es la de introducir mudanzas de carácter neoliberal en la política económica y para las cuales los instrumentos económicos utilizados van a generar la abstención del Estado en el plano social, la desregulación de las economías nacionales en favor del libre mercado y, fundamentalmente, el papel sobredimensionado del mercado financiero internacional. En este contexto, son analizadas las reformas de la seguridad social y de los sistemas de salud. La última parte del trabajo tuvo por objetivo enfrentar las dificultades que las políticas sociales presentan en el contexto actual, trayendo al centro del debate un mapeamiento de las alternativas posibles para el desarrollo de las políticas sociales y de salud.

  3. Poverty and Proximate Barriers to Learning: Vision Deficiencies, Vision Correction and Educational Outcomes in Rural Northwest China.

    Science.gov (United States)

    Hannum, Emily; Zhang, Yuping

    2012-09-01

    Uncorrected vision may present a significant barrier to educational mobility in poor communities in low and middle income countries. Focusing on the case of rural Northwest China, we analyze the Gansu Survey of Children and Families (2,000 children; 100 rural villages) and the Gansu Vision Intervention Project (a randomized trial; 19,185 students, 165 schools, two counties). Four main findings emerge: significant unmet need for vision correction; socioeconomic gradients in vision correction; somewhat greater vulnerability to vision problems among higher socioeconomic status and more academically engaged children; and significant favorable effects of vision correction on math and literacy performance and class failure.

  4. 2020 Vision Project Summary: FY99

    Energy Technology Data Exchange (ETDEWEB)

    K.W. Gordon; K.P. Scott

    2000-01-01

    During the 1998-99 school year, students from participating schools completed and submitted a variety of scenarios describing potential world and regional conditions in the year 2020 and their possible effect on U.S. national security. This report summarizes the student's views and describes trends observed over the course of the 2020 Vision project's four years.

  5. Vision Research for Flight Simulation. Final Report.

    Science.gov (United States)

    Richards, Whitman, Ed.; Dismukes, Key, Ed.

    Based on a workshop on vision research issues in flight-training simulators held in June 1980, this report focuses on approaches for the conduct of research on what visual information is needed for simulation and how it can best be presented. An introduction gives an overview of the workshop and describes the contents of the report. Section 1…

  6. Participation of the elderly after vision loss

    NARCIS (Netherlands)

    Alma, M.A.; van der Mei, S.F.; Melis-Dankers, B.J.M.; van Tilburg, T.G.; Groothoff, J.W.; Suurmeijer, T.P.B.M.

    2011-01-01

    Purpose. To assess the degree of participation of the visually impaired elderly and to make a comparison with population-based reference data. Method. This cross-sectional study included visually impaired elderly persons (≥55 years; n = 173) who were referred to a low-vision rehabilitation centre.

  7. Participation of the elderly after vision loss

    NARCIS (Netherlands)

    Alma, M.A.; Mei, van der S.F.; Melis-Dankers, B.J.M.; Tilburg, van T.G.; Groothoff, J.W.; Suurmeijer, T.P.B.M.

    2011-01-01

    Purpose. To assess the degree of participation of the visually impaired elderly and to make a comparison with population-based reference data. Method. This cross-sectional study included visually impaired elderly persons (≥55 years; n=173) who were referred to a low-vision rehabilitation centre.

  8. Participation of the elderly after vision loss

    NARCIS (Netherlands)

    Alma, M.A.; van der Mei, S.F.; Melis-Dankers, B.J.; van Tilburg, T.G.; Groothoff, J.W.; Suurmeijer, T.P.

    2011-01-01

    Purpose. To assess the degree of participation of the visually impaired elderly and to make a comparison with population-based reference data. Method. This cross-sectional study included visually impaired elderly persons (>= 55 years; n = 173) who were referred to a low-vision rehabilitation centre.

  9. Colour Vision Deficiency and Physics Teaching

    Science.gov (United States)

    Maule, Louise; Featonby, David

    2016-01-01

    1 in 12 males suffer from some form of colour vision deficiency (CVD) which in the present colour dominated world of education presentation can be a severe disadvantage. Although aware of "colourblindness" most teachers make little or no adjustment for these pupils for whom tasks may be more difficult. This article examines colour vision…

  10. Delusion and bi-ocular vision.

    Science.gov (United States)

    De Masi, Franco

    2015-10-01

    The delusional experience is the result of a grave disjunction in the psyche whose outcome is not readily predictable. Examination of the specific mode of disjunction may help us understand the nature and radical character of delusion. I will present the therapy of a psychotic patient who after many years of analysis and progresses in his life continues to show delusional episodes although limited and contained. In his case, the two visions, one delusional and the other real, remain distinct and differentiated from each other because they both possess the same perceptual character, that of reality. He has a bi-ocular vision of reality and not a binocular one because his vision lacks integration, as would necessarily be the case if the two visions could be compared with each other. The principle of non-contradiction ceases to apply in delusion. A corollary of the failure of the principle of non-contradiction is that, if a statement and its negation are both true, then any statement is true. Logicians call this consequence the principle of explosion. For this reason, the distinction between truth, reality, improbability, probability, possibility and impossibility is lost in the delusional system, thus triggering an omnipotent, explosive mechanism with a potentially infinite progression. The paper presents some thoughts for a possible analytic transformation of the delusional experience. Copyright © 2015 Institute of Psychoanalysis.

  11. Given time: biology, nature and photographic vision.

    Science.gov (United States)

    Garlick, Steve

    2009-12-01

    The invention of photography in the early 19th century changed the way that we see the world, and has played an important role in the development of western science. Notably, photographic vision is implicated in the definition of a new temporal relation to the natural world at the same time as modern biological science emerges as a disciplinary formation. It is this coincidence in birth that is central to this study. I suggest that by examining the relationship of early photography to nature, we can gain some insight into the technological and epistemological underpinnings of biological vision. To this end, this article is primarily concerned with the role of photographic technology in the genealogy of biological vision. I argue that photography has always been ambiguously located between art and science, between nature and culture, and between life and death. Hence, while it may be a technological expression of the scientific desire to know and to control nature, photographic vision has continually disrupted and frustrated the ambitions of biological technoscience. The technovision of early biological science illustrates that the elusive temporality of nature has always been central to the production of knowledge of life.

  12. Computer vision for a robot sculptor

    Science.gov (United States)

    Brand, Matthew

    1997-06-01

    Before make computers can be active collaborators in design work, they must be equipped with some human-like visual and design skills. Towards this end, we report some advances in integrating computer vision and automated design in a computational model of 'artistic vision' -- the ability to see something striking in a subject and express it in a creative design. The artificial artist studies images of animals, then designs sculpture that conveys something of the strength, tension, and expression in the animals' bodies. It performs an anatomical analysis using conventional computer vision techniques constrained by high-level causal inference to find significant areas of the body, e.g., joints under stress. The sculptural form -- kinetic mobiles -- presents a number of mechanical and aesthetic design challenges, which the system solves in imagery using field-based computing methods. Coupled potential fields simultaneously enforce soft and hard constraints -- e.g., the mobile should resemble the original animal and every subassembly of the mobile must be precisely balanced. The system uses iconic representations in all stages, obviating the need to translate between spatial and predicate representations and allowing a rich flow of information between vision and design.

  13. Psychological Adjustment in Adolescents with Vision Impairment

    Science.gov (United States)

    Pinquart, Martin; Pfeiffer, Jens P.

    2012-01-01

    The present study compared psychological adjustment of 158 adolescents with vision impairment and 158 sighted adolescents with a matched-pair design using the Strengths and Difficulties Questionnaire. Adolescent self-reports and teacher reports on emotional problems, peer problems, and total difficulties showed higher scores in students with…

  14. Preventing Vision Loss in Diabetes - Summary

    Centers for Disease Control (CDC) Podcasts

    2008-04-24

    This podcast is for a professional audience and briefly discusses how to prevent vision loss in people with diabetes.  Created: 4/24/2008 by National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP), Division of Diabetes Translation (DDT), National Diabetes Education Program (NDEP).   Date Released: 6/4/2008.

  15. New triplet visions on sustainable building

    NARCIS (Netherlands)

    Brouwers, Jos; Entrop, Alexis Gerardus; CIB,

    2005-01-01

    The theme for the second World Sustainable Building Conference is “Action for sustainability”. A new vision has been developed that makes actions easier by specifying sustainable measurements by compartments. Each compartment contains three levels of sustainability and there are four compartments

  16. New Visions of Reality: Multimedia and Education.

    Science.gov (United States)

    Ambron, Sueann

    1986-01-01

    Multimedia is a powerful tool that will change both the way we look at knowledge and our vision of reality, as well as our educational system and the business world. Multimedia as used here refers to the innovation of mixing text, audio, and video through the use of a computer. Not only will there be new products emerging from multimedia uses, but…

  17. Color Vision Losses in Autism Spectrum Disorders.

    Science.gov (United States)

    Zachi, Elaine C; Costa, Thiago L; Barboni, Mirella T S; Costa, Marcelo F; Bonci, Daniela M O; Ventura, Dora F

    2017-01-01

    Autism spectrum disorders (ASDs) are neurodevelopmental conditions characterized by impairments in social/communication abilities and restricted behaviors. The present study aims to examine color vision discrimination in ASD children and adolescents without intellectual disability. The participants were also subdivided in order to compare color vision thresholds of autistic participants and those who achieved diagnostic criteria for Asperger Syndrome (AS). Nine subjects with autism, 11 participants with AS and 36 typically developing children and adolescents participated in the study. Color vision was assessed by the Cambridge Color Test (CCT). The Trivector protocol was administered to determine color discrimination thresholds along the protan, deutan, and tritan color confusion lines. Data from ASD participants were compared to tolerance limits for 90% of the population with 90% probability obtained from controls thresholds. Of the 20 ASD individuals examined, 6 (30%) showed color vision losses. Elevated color discrimination thresholds were found in 3/9 participants with autism and in 3/11 AS participants. Diffuse and tritan deficits were found. Mechanisms for chromatic losses may be either at the retinal level and/or reflect reduced cortical integration.

  18. Color Vision Losses in Autism Spectrum Disorders

    Directory of Open Access Journals (Sweden)

    Elaine C. Zachi

    2017-06-01

    Full Text Available Autism spectrum disorders (ASDs are neurodevelopmental conditions characterized by impairments in social/communication abilities and restricted behaviors. The present study aims to examine color vision discrimination in ASD children and adolescents without intellectual disability. The participants were also subdivided in order to compare color vision thresholds of autistic participants and those who achieved diagnostic criteria for Asperger Syndrome (AS. Nine subjects with autism, 11 participants with AS and 36 typically developing children and adolescents participated in the study. Color vision was assessed by the Cambridge Color Test (CCT. The Trivector protocol was administered to determine color discrimination thresholds along the protan, deutan, and tritan color confusion lines. Data from ASD participants were compared to tolerance limits for 90% of the population with 90% probability obtained from controls thresholds. Of the 20 ASD individuals examined, 6 (30% showed color vision losses. Elevated color discrimination thresholds were found in 3/9 participants with autism and in 3/11 AS participants. Diffuse and tritan deficits were found. Mechanisms for chromatic losses may be either at the retinal level and/or reflect reduced cortical integration.

  19. 1610: The Year that Improved our 'Vision'

    Indian Academy of Sciences (India)

    GENERAL │ ARTICLE. 1610: The Year that Improved our 'Vision'. H R Madhusudan. The telescopic observations by Galileo Galilei in 1610 pro- vided compelling evidence of a heliocentric system of the universe, as forwarded by Nicholas Copernicus in the earlier century. Firstly, Galileo established that the Earth was not ...

  20. Addressing Development Vision 2025: Appropriate Training Models ...

    African Journals Online (AJOL)

    Appropriately trained Human Resources for Health (HRH) are key inputs in the realisation of high quality livelihood, the first attribute of Tanzania‟s Development Vision 2025. Within this attribute elements related to HRH include: access to quality primary health care for all, reduction in infant and maternal mortality rates by ...

  1. Building Artificial Vision Systems with Machine Learning

    Energy Technology Data Exchange (ETDEWEB)

    LeCun, Yann [New York University

    2011-02-23

    Three questions pose the next challenge for Artificial Intelligence (AI), robotics, and neuroscience. How do we learn perception (e.g. vision)? How do we learn representations of the perceptual world? How do we learn visual categories from just a few examples?

  2. Distance Learning Librarians: Their Shared Vision

    Science.gov (United States)

    Casey, Anne Marie

    2009-01-01

    Shared vision is a component of leadership that fosters innovation through buy-in at all levels of the organization. At times, people see a need for innovation but do not have the power to make changes on their own. Many librarians in academic institutions that were early adopters of distance learning envisioned a need for new services that were…

  3. 1610: The Year that Improved our 'Vision'

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 15; Issue 10. 1610: The Year that Improved our 'Vision'. H R Madhusudan. General Article Volume 15 Issue 10 October 2010 pp 948-953. Fulltext. Click here to view fulltext PDF. Permanent link: http://www.ias.ac.in/article/fulltext/reso/015/10/0948-0953 ...

  4. Optical stimulator for vision-based sensors

    DEFF Research Database (Denmark)

    Rössler, Dirk; Pedersen, David Arge Klevang; Benn, Mathias

    2014-01-01

    We have developed an optical stimulator system for vision-based sensors. The stimulator is an efficient tool for stimulating a camera during on-ground testing with scenes representative of spacecraft flights. Such scenes include starry sky, planetary objects, and other spacecraft. The optical...

  5. Lumber Grading With A Computer Vision System

    Science.gov (United States)

    Richard W. Conners; Tai-Hoon Cho; Philip A. Araman

    1989-01-01

    Over the past few years significant progress has been made in developing a computer vision system for locating and identifying defects on surfaced hardwood lumber. Unfortunately, until September of 1988 little research had gone into developing methods for analyzing rough lumber. This task is arguably more complex than the analysis of surfaced lumber. The prime...

  6. What is stereoscopic vision good for?

    Science.gov (United States)

    Read, Jenny C. A.

    2015-03-01

    Stereo vision is a resource-intensive process. Nevertheless, it has evolved in many animals including mammals, birds, amphibians and insects. It must therefore convey significant fitness benefits. It is often assumed that the main benefit is improved accuracy of depth judgments, but camouflage breaking may be as important, particularly in predatory animals. In humans, for the last 150 years, stereo vision has been turned to a new use: helping us reproduce visual reality for artistic purposes. By recreating the different views of a scene seen by the two eyes, stereo achieves unprecedented levels of realism. However, it also has some unexpected effects on viewer experience. The disruption of established mechanisms for interpreting pictures may be one reason why some viewers find stereoscopic content disturbing. Stereo vision also has uses in ophthalmology. Clinical stereoacuity tests are used in the management of conditions such as strabismus and amblyopia as well as vision screening. Stereoacuity can reveal the effectiveness of therapy and even predict long-term outcomes post surgery. Yet current clinical stereo tests fall far short of the accuracy and precision achievable in the lab. At Newcastle University, we are exploiting the recent availability of autostereo 3D tablet computers to design a clinical stereotest app in the form of a game suitable for young children. Our goal is to enable quick, accurate and precise stereoacuity measures which will enable clinicians to obtain better outcomes for children with visual disorders.

  7. A conscious route to unconscious vision.

    Science.gov (United States)

    Danckert, J; Goodale, M A

    2000-01-27

    Damage to the primary visual cortex can leave subjects with unconscious residual vision, or 'blindsight'. New research suggests that 'top-down' modulation by intact conscious visual processes can improve performance in the impaired visual domain, even though that domain still remains quite inaccessible to consciousness.

  8. Leadership and Futuring: Making Visions Happen

    Science.gov (United States)

    Hoyle, John R.

    2006-01-01

    Well-educated, charismatic leaders who can improve systems to enrich the lives of others are needed today more than ever. In this updated edition, John Hoyle identifies vision, motivation, flexibility, and openness to invention and opportunity as key characteristics of effective leaders, and challenges school administrators to think outside the…

  9. Essay: Physical Review Letters; Sam Goudsmit's Vision.

    Science.gov (United States)

    Adair, Robert K

    2008-01-18

    Sam Goudsmit implemented his vision of converting the Letters section of Physical Review into a distinct journal fifty years ago. Physical Review Letters was designed to publish "only papers that really deserve rapid communication." The new journal became so successful with physicists throughout the world that Physical Review Letters now publishes 3500 Letters per year.

  10. Ultra-Rapid Vision in Birds.

    Directory of Open Access Journals (Sweden)

    Jannika E Boström

    Full Text Available Flying animals need to accurately detect, identify and track fast-moving objects and these behavioral requirements are likely to strongly select for abilities to resolve visual detail in time. However, evidence of highly elevated temporal acuity relative to non-flying animals has so far been confined to insects while it has been missing in birds. With behavioral experiments on three wild passerine species, blue tits, collared and pied flycatchers, we demonstrate temporal acuities of vision far exceeding predictions based on the sizes and metabolic rates of these birds. This implies a history of strong natural selection on temporal resolution. These birds can resolve alternating light-dark cycles at up to 145 Hz (average: 129, 127 and 137, respectively, which is ca. 50 Hz over the highest frequency shown in any other vertebrate. We argue that rapid vision should confer a selective advantage in many bird species that are ecologically similar to the three species examined in our study. Thus, rapid vision may be a more typical avian trait than the famously sharp vision found in birds of prey.

  11. La segunda conferencia mundial de educación superior (unesco, 2009 y la visión del concepto de acreditación en las conferencias de unesco (1998-2009 The second world conference of higher education (unesco, 2009 and the vision of accreditation in the conferences of unesco (1998-2009

    Directory of Open Access Journals (Sweden)

    Francisco López Segrera

    2012-11-01

    Full Text Available El presente artículo formula algunas reflexiones sobre la Segunda Conferencia Mundial de Educación Superior (UNESCO, 2009. El debate principal en ella versó sobre la visión de enseñanza superior como "un bien común", o como "un servicio público", esta última visión fue considerada por muchos delegados como un camino hacia una mayor mercantilización. En el Comunicado Final prevaleció el primer criterio. También en el artículo se analizan los cambios principales en los conceptos de evaluación, calidad, garantía de la calidad y acreditación entre 1995 y 2009. El énfasis se ha movido de la evaluación y la calidad (1995-1998 a la garantía de calidad y acreditación (1998-2003 y luego (2008-2009 en vincular los criterios de calidad a la pertinencia.The present article formulates some reflections on The Second World Higher Education Conference (UNESCO, 2009. The main debate was about the vision of higher education as "a common good", or as "a public service", this last vision was considered by many delegates as a road to further mercantilization. In the Final Communiqué the first criterion prevailed. The article also analyzes the main changes concerning the concepts of evaluation, quality, quality assurance and accreditation between 1995 and 2009. The emphasis has moved from evaluation and quality (1995-1998 to quality assurance and accreditation (1998-2003 and then (2008-2009 in linking the quality criteria to pertinence, relevance, equity, and sustainable development.

  12. Change in vision, visual disability, and health after cataract surgery

    National Research Council Canada - National Science Library

    Helbostad, Jorunn L; Oedegaard, Maria; Lamb, Sarah E; Delbaere, Kim; Lord, Stephen R; Sletvold, Olav

    2013-01-01

    .... We investigated if vision, visual functioning, and general health follow the same trajectory of change the year after cataract surgery and if changes in vision explain changes in visual disability and general health...

  13. 75 FR 9478 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2010-03-02

    ..., retinal detachment, macular scarring, optic atrophy, myopic astigmatism, and loss of vision due to trauma... either born with their vision impairments or have had them since childhood. The 14 individuals who...

  14. Psychophysics of human vision and camouflage pattern design

    CSIR Research Space (South Africa)

    Baumbach, J

    2010-09-01

    Full Text Available The psychophysics of human vision describes how humans perceive and process information in a scene. The physiological aspects (e.g. spatial resolution and spectral resolution) as well as the psychological aspects of vision have been investigated...

  15. MicroVision Who Analysis. US Army Recruiting Command. Custom MicroVision Profile Analysis

    National Research Council Canada - National Science Library

    Riley, Maurice

    2002-01-01

    ...), NPS US Army Reserve recruits (NPS-USAR), ROTC cadets, and West Point (USMA) cadets. MicroVision uses demographics, including socioeconomic and housing data, and aggregated consumer demand data at the ZlP...

  16. [Disturbances of binocular vision in macular heterotopia].

    Science.gov (United States)

    Schroeder, B; Krzizok, T; Kaufmann, H; Kroll, P

    1999-08-01

    Tractive translocation of the macula (secondary macular heterotopia) may result in disturbance of binocular vision. The report of a case shall discuss the sensorial problems of these patients. We report of a 40-years old male who had decreased visual acuity and loss of binocular vision for several years due to episodes of uveitis with intravitreous hemorrhage and cataract formation. After bilateral vitrectomy and cataract extraction a good visual acuity was restored in both eyes. Postoperatively, the patient monocularly complained about disturbed egocentric localization (tilting of the visual environment, "past-pointing") and metamorphopsia. Binocularly he was confused by doubled vision with tilted images. Both maculae showed a tractive translocation of 15 degrees downward. Measurements of binocular alignment with the tangent screen showed an excyclotropia of 8 degrees and an exotropia of 7 degrees in all directions of gaze. Haploscopic examination with fusion images demonstrated that sensorial fusion was not possible even with perfect ocular alignment due to disturbed relative retinal localization (obligate fixation disparity). Initially, full time occlusion of the left eye was required. After improvement of symptoms occlusion therapy was slowly tapered. Within one year the patient had learned to suppress the image of his left eye and reported only minor residual visual disturbances even without occlusion of his left eye. Secondary translocation of the macula monocularly results in a disturbance of egocentric localization and in metamorphopsia. Binocularly doubled vision with tilted images and a loss of sensorial fusion are seen. With monocular vision, perceptual adapting to the aberration in egocentric localisation is possible within weeks by reallocation of the retinal meridians in the central nervous system. Binocular improvement of symptoms is limited to the learning of suppression. Improvement of binocular symptoms by adaptation of retinal correspondence does

  17. Changes of color vision in ocular hypertension.

    Science.gov (United States)

    Mäntyjärvi, M; Tuppurainen, K

    Fifty-six ocular hypertension (OHT) patients were examined for 2-3 days in the Eye Clinic of Kuopio University Hospital. No glaucomatous changes were found. Twenty-seven of them were found to have several risk factors for developing glaucoma and medication was started. Twenty-nine of the patients did not show risk factors and had no medication. Color vision was examined with the Farnsworth-Munsell 100 (FM 100) hue test and Besançon anomalometer, later Color Vision Meter 712 at the beginning of the study and 3 years later. None of the 56 patients showed any glaucomatous changes after 3 years of the study. In the treatment group, the FM 100 test showed significantly (paired t-test, p = 0.004) improved error scores after 3 years. In the non-treatment group, 19 patients did not develop risk factors; they had no significant changes in the color vision results. In 10 patients of the non-treatment group, risk factors had developed with elevated intraocular pressure and medication was started for them after 3 years. Their color vision results in the blue anomalous quotient (AQ) of the anomalometer had significantly shifted to the blue part of the equation (paired t-test, p = 0.04). The other color vision results had not changed significantly. The significantly improved FM 100 scores in the treatment group could mean, that the treatment has a beneficial effect for the OHT eyes at risk for developing glaucoma.(ABSTRACT TRUNCATED AT 250 WORDS)

  18. Angiographic results of the cobalt chromium Vision and Mini-Vision stents.

    Science.gov (United States)

    Wöhrle, Jochen; Nusser, Thorsten; Hoffmann, Stephanie; Kochs, Matthias

    2009-10-01

    Drug-eluting stents (DES) have been shown to reduce repeat revascularizations compared with their bare-metal stent (BMS) platforms. Modern BMS may be associated with better angiographic results compared with the older BMS platforms. In the Basel Stent Kosten Effektivitats Trial (BASKET), target vessel revascularization after six months was nonsignificantly different between DES and BMS with clinical follow-up. To evaluate angiographic results of the cobalt chromium Vision and Mini-Vision stents (Abbott Vascular, USA). A total of 247 consecutive patients with 293 de novo lesions in native coronary arteries were treated with cobalt chromium Vision (n=184; stent diameter 2.75 mm to 4.0 mm) or Mini-Vision stents (n=109; stent diameter 2.0 mm to 2.5 mm), and scheduled for six months of angiographic follow-up. The primary end point was in-stent late loss after six months. Acute coronary syndromes were present in 83.4% (n=206) of patients. The preinterventional reference diameter of Vision stents was 2.70+/-0.34 mm and for Mini-Vision stents, it was 2.13+/-0.27 mm (Pstent late loss was 0.64+/-0.67 mm and the binary restenosis rate was 17.9%. In the Mini-Vision group, in-stent late loss was 0.82+/-0.71 mm and the restenosis rate was 45.4%. No difference in occurrence of restenosis within the segments proximal or distal to the stent was observed. The restenotic pattern was predominantly focal with a short length of 7.9+/-4.4 mm. The use of the cobalt chromium Vision stent for the treatment of de novo lesions was associated with a low late loss and binary angiographic restenosis rate.

  19. Non-vascular vision loss in pseudoxanthoma elasticum

    OpenAIRE

    Tsui, Irena; Fuchs, Brian S.; Chou, Chai Lin; Chang, Stanley; Tsang, Stephen H.

    2007-01-01

    Pseudoxanthoma elasticum patients with angioid streaks are well-known to have acute vision loss due to choroidal bleeding. However, chronic vision loss due to macular atrophy is less well characterized. We describe a patient with sub-acute vision loss in one eye due to loss of macular retinal pigment epithelium function. Autofluorescence and pattern electroretinogram were useful adjuncts to help diagnose the source of her vision loss.

  20. Real time hardware vision processing for a bionic eye

    OpenAIRE

    Josh, Horace Edmund

    2017-01-01

    A recent objective in medical bionics research is to develop visual prostheses - devices that could potentially restore the sight of blind individuals. The Monash Vision Group is currently working towards implementing a fully autonomous direct-to-brain vision implant called the Gennaris. Although research in this field is progressing quickly, initial implementations of these devices will be quite naive, offering very basic levels of vision. The vision is anticipated to be binary - that is wit...

  1. Performance Evaluation of Neuromorphic-Vision Object Recognition Algorithms

    Science.gov (United States)

    2014-08-01

    develop artificial vision systems based on the design principles employed by mammalian vision systems. Three such algorithms are briefly described...algorithmic emulations of the entire visual pathway - from retina to the visual cortex. The objective of the effort is to explore the potential for...develop artificial vision systems based on the design principles employed by mammalian vision systems. Three such algorithms are briefly described in

  2. All-weather vision for automotive safety: which spectral band?

    OpenAIRE

    PINCHON, Nicolas; IBN-KHEDHER, M; CASSIGNOL, Olivier; NICOLAS, A; BERNARDIN, Frédéric; LEDUC, Patrick; TAREL, Jean Philippe; BREMOND, Roland; BERCIER, Emmanuel; JULIEN, G

    2016-01-01

    SIA Vision 2016 - International Conference Night Drive Tests and Exhibition, Paris, FRANCE, 13-/10/2016 - 14/10/2016; The AWARE (All Weather All Roads Enhanced vision) French public funded project is aiming at the development of a low cost sensor fitting to automotive and aviation requirements, and enabling a vision in all poor visibility conditions, such as night, fog, rain and snow. In order to identify the technologies providing the best all-weather vision, we evaluated the relevance of fo...

  3. Flight test comparison between enhanced vision (FLIR) and synthetic vision systems

    Science.gov (United States)

    Arthur, Jarvis J., III; Kramer, Lynda J.; Bailey, Randall E.

    2005-05-01

    Limited visibility and reduced situational awareness have been cited as predominant causal factors for both Controlled Flight Into Terrain (CFIT) and runway incursion accidents. NASA"s Synthetic Vision Systems (SVS) project is developing practical application technologies with the goal of eliminating low visibility conditions as a causal factor to civil aircraft accidents while replicating the operational benefits of clear day flight operations, regardless of the actual outside visibility condition. A major thrust of the SVS project involves the development/demonstration of affordable, certifiable display configurations that provide intuitive out-the-window terrain and obstacle information with advanced pathway guidance. A flight test evaluation was conducted in the summer of 2004 by NASA Langley Research Center under NASA's Aviation Safety and Security, Synthetic Vision System - Commercial and Business program. A Gulfstream G-V aircraft, modified and operated under NASA contract by the Gulfstream Aerospace Corporation, was flown over a 3-week period at the Reno/Tahoe International Airport and an additional 3-week period at the NASA Wallops Flight Facility to evaluate integrated Synthetic Vision System concepts. Flight testing was conducted to evaluate the performance, usability, and acceptance of an integrated synthetic vision concept which included advanced Synthetic Vision display concepts for a transport aircraft flight deck, a Runway Incursion Prevention System, an Enhanced Vision Systems (EVS), and real-time Database Integrity Monitoring Equipment. This paper focuses on comparing qualitative and subjective results between EVS and SVS display concepts.

  4. Technological process supervising using vision systems cooperating with the LabVIEW vision builder

    Science.gov (United States)

    Hryniewicz, P.; Banaś, W.; Gwiazda, A.; Foit, K.; Sękala, A.; Kost, G.

    2015-11-01

    One of the most important tasks in the production process is to supervise its proper functioning. Lack of required supervision over the production process can lead to incorrect manufacturing of the final element, through the production line downtime and hence to financial losses. The worst result is the damage of the equipment involved in the manufacturing process. Engineers supervise the production flow correctness use the great range of sensors supporting the supervising of a manufacturing element. Vision systems are one of sensors families. In recent years, thanks to the accelerated development of electronics as well as the easier access to electronic products and attractive prices, they become the cheap and universal type of sensors. These sensors detect practically all objects, regardless of their shape or even the state of matter. The only problem is considered with transparent or mirror objects, detected from the wrong angle. Integrating the vision system with the LabVIEW Vision and the LabVIEW Vision Builder it is possible to determine not only at what position is the given element but also to set its reorientation relative to any point in an analyzed space. The paper presents an example of automated inspection. The paper presents an example of automated inspection of the manufacturing process in a production workcell using the vision supervising system. The aim of the work is to elaborate the vision system that could integrate different applications and devices used in different production systems to control the manufacturing process.

  5. Strategy for developing an evidence-based transdisciplinary vision rehabilitation team approach to treating vision impairment.

    Science.gov (United States)

    Grover, Lori Latowski

    2008-04-01

    Many individuals with vision impairment experience significant loss of the ability to perform daily living activities, which often results in a further decline and loss of quality of life. Appropriate rehabilitation of the population with vision impairment has the potential to both improve individual abilities for health and personal management as well as maximize utilization of available health care resources. The case for an evidence-based model for the vision rehabilitation health care team as a medical rehabilitation program is presented. The recommended strategy has 3 main components: development of a consensus team clinical practice guideline leading to a future evidence-based team guideline for vision rehabilitation; evaluation and measurement of the knowledge, attitudes, and practices of the involved vision rehabilitation professionals before and after implementation of the new paradigm; and measurement of outcomes that estimate the effects of the proposed paradigm on patient care by measuring both the improvement in visual ability of the patient and the economic impact of the model on optometric practice. Development of a state-of-the-art evidence-based transdisciplinary team model guideline will facilitate improvement in the quality of life of individuals with diseases that result in chronic vision impairment.

  6. Research and development on embedded omnidirectional vision tracker for vision navigation

    Science.gov (United States)

    Zhu, Junchao; Feng, Weijia; Cao, Zuoliang; Zhang, Baofeng

    2009-11-01

    Omni-directional vision appears the definite significance since its advantage of acquiring all vision information simultaneously. In this paper, an integrated omni-directional vision tracker based on the configuration with CMOS, FPGA and DSP has been implemented. Fisheye lens is one of the most efficient ways to establish omni-directional vision systems, however, it appear with an unavoidable inherent distortion. An imaging system model which consists of fisheye-lens and the embedded tracker has been proposed. A novel beacon owning the feature of particular topology shape can be identified by the appropriative recognition processes. Particle filter has been programmed as an intersectional arithmetic structure which processes the same step of several particle filters simultaneously. We called it as Multiple Intersection Particle Filter. MIPF makes multi-targets tracking efficiently and successfully on embedded platform. A rectification technique based on equidistant projection theorem is used for correction some distorted image point. The localization method just employs the picture position of two objects to estimate the space position and orientation for AGV. After target recognition, vision tracking, rectification, and object positioning functions actualized on the embedded omni-directional vision tracker, autonomous navigation has been demonstrated on experimental AGV.

  7. A vision on methodology for integrated sustainable urban development: bequest

    NARCIS (Netherlands)

    Bentivegna, V.; Curwell, S.; Deakin, M.; Lombardi, P.; Mitchell, G.; Nijkamp, P.

    2002-01-01

    The concepts and visions of sustainable development that have emerged in the post-Brundtland era are explored in terms laying the foundations for a common vision of sustainable urban development (SUD). The described vision and methodology for SUD resulted from the activities of an international

  8. The Physiology of Vision and the Process of Writing.

    Science.gov (United States)

    Roberts, David Harrill

    Acknowledging the importance of sight to the writing process, the paper elucidates the processes of vision related to the composing process. In the opening section the physics of light and vision, optic neuroanatomy, and cortical responses to visual stimuli are explained. Next, theories of vision and data mapping are examined and their…

  9. 75 FR 22178 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-04-27

    ... Federal Motor Carrier Safety Administration Qualification of Drivers; Exemption Renewals; Vision AGENCY...: FMCSA previously announced its decision to renew the exemptions from the vision requirement in the... individuals from the vision requirement if the exemptions granted will not compromise safety. The Agency has...

  10. 75 FR 39618 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-07-09

    ...-24015; FMCSA-2007-0071; FMCSA-2008-0021] Qualification of Drivers; Exemption Renewals; Vision AGENCY...: FMCSA previously announced its decision to renew the exemptions from the vision requirement in the... individuals from the vision requirement if the exemptions granted will not compromise safety. The Agency has...

  11. 75 FR 38603 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-07-02

    ...; Exemption Renewals; Vision AGENCY: Federal Motor Carrier Safety Administration (FMCSA), DOT. ACTION: Notice... the vision requirement in the Federal Motor Carrier Safety Regulations for 21 individuals. FMCSA has statutory authority to exempt individuals from the vision requirement if the exemptions granted will not...

  12. 75 FR 60862 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-10-01

    ...-0174] Qualification of Drivers; Exemption Renewals; Vision AGENCY: Federal Motor Carrier Safety... decision to renew the exemptions from the vision requirement in the Federal Motor Carrier Safety Regulations for 18 individuals. FMCSA has statutory authority to exempt individuals from the vision...

  13. 75 FR 22179 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-04-27

    ... Federal Motor Carrier Safety Administration Qualification of Drivers; Exemption Renewals; Vision AGENCY...: FMCSA previously announced its decision to renew the exemptions from the vision requirement in the... individuals from the vision requirement if the exemptions granted will not compromise safety. The Agency has...

  14. 75 FR 60861 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-10-01

    ...; Vision AGENCY: Federal Motor Carrier Safety Administration (FMCSA), DOT. ACTION: Notice of final disposition. SUMMARY: FMCSA previously announced its decision to renew the exemptions from the vision... to exempt individuals from the vision requirement if the exemptions granted will not compromise...

  15. 75 FR 19676 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-04-15

    ... of Drivers; Exemption Renewals; Vision AGENCY: Federal Motor Carrier Safety Administration (FMCSA... the exemptions from the vision requirement in the Federal Motor Carrier Safety Regulations for 15 individuals. FMCSA has statutory authority to exempt individuals from the vision requirement if the exemptions...

  16. 75 FR 27620 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-05-17

    ... Renewals; Vision AGENCY: Federal Motor Carrier Safety Administration (FMCSA), DOT. ACTION: Notice of final disposition. SUMMARY: FMCSA previously announced its decision to renew the exemptions from the vision... to exempt individuals from the vision requirement if the exemptions granted will not compromise...

  17. 75 FR 1453 - Qualification of Drivers; Exemption Renewals; Vision

    Science.gov (United States)

    2010-01-11

    ...-2007-27897; FMCSA- 2007-28695; FMCSA-2007-29019] Qualification of Drivers; Exemption Renewals; Vision.... SUMMARY: FMCSA previously announced its decision to renew the exemptions from the vision requirement in... exempt individuals from the vision requirement if the exemptions granted will not compromise safety. The...

  18. Research into the Architecture of CAD Based Robot Vision Systems

    Science.gov (United States)

    1988-02-09

    Vision 󈨚 and "Automatic Generation of Recognition Features for Com- puter Vision," Mudge, Turney and Volz, published in Robotica (1987). All of the...Occluded Parts," (T.N. Mudge, J.L. Turney, and R.A. Volz), Robotica , vol. 5, 1987, pp. 117-127. 5. "Vision Algorithms for Hypercube Machines," (T.N. Mudge

  19. 77 FR 5874 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2012-02-06

    ... loss of vision in his left eye due to a traumatic injury sustained in 2008. The best corrected visual... violations in a CMV. Gary Vines Mr. Vines, 47, has had complete loss of vision in his left eye due to a... Federal Motor Carrier Safety Administration Qualification of Drivers; Exemption Applications; Vision...

  20. 77 FR 56261 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2012-09-12

    ... L. Blakeley II Mr. Blakeley, age 60, has had loss of vision in his left eye due to a traumatic... violations in a CMV. Paul M. Griffey Mr. Griffey, 59, has loss of vision in his left eye due to retinal... Federal Motor Carrier Safety Administration Qualification of Drivers; Exemption Applications; Vision...

  1. 75 FR 70078 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2010-11-16

    ..., complete loss of vision, loss of an eye, macular scarring and prosthesis. In most cases, their eye... Federal Motor Carrier Safety Administration Qualification of Drivers; Exemption Applications; Vision.... SUMMARY: FMCSA announces its decision to exempt 15 individuals from the vision requirement in the Federal...

  2. 75 FR 25917 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2010-05-10

    .... Holt Mr. Holt, 48, has had complete loss of vision in his right eye since childhood. The best corrected.... He exceeded the speed limit by 5 mph. Larry D. Moss Mr. Moss, 55, has had complete loss of vision in... moving violations in a CMV. Michael J. Rankin Mr. Rankin, 54, has had loss of vision in his right eye...

  3. Personal and Shared Vision: A Commitment to Increased Rigor

    Science.gov (United States)

    Williamson, Ronald; Blackburn, Barbara R.

    2009-01-01

    One of the most important things a principal can do is have a clear vision for his or her school. The North Central Regional Educational Laboratory (2008) identified a "clear, strong and collectively held vision" as one of the six essential components of an effective school. Beyond a general vision for their schools, it is important that…

  4. Key informant perceptions of vision loss in children and implications ...

    African Journals Online (AJOL)

    Background: The role of key informants (KIs) in identifying children with vision loss is expanding, yet there is a minimal understanding of KI perceptions of vision loss in children. The aim of the study was to understand the KI's perception of childhood vision loss in order to design more effective training programmes. Materials ...

  5. Screening for Congenital Color Vision Deficiency in Primary ...

    African Journals Online (AJOL)

    Background: One hundred and thirty teachers were studied to evaluate their knowledge of congenital Color Vision Deficiency (CVD), and their ability to perform the. Ishihara color vision test, so as to determine if they can provide color vision screening services for their pupils. Methods: The teachers were randomly selected ...

  6. Determination of Colour Vision Using Ishihara and Dvorine Plates ...

    African Journals Online (AJOL)

    Background: Colour vision is important in everyday life and colour vision deficiency generally lowers the quality of life. The objective of the study was to perform tests and measurements to investigate the prevalence of colour vision abnormalities within a normal sample population of the University of Jos. Methodology: ...

  7. Uganda's Vision 2040 and Human Needs Promotion | Balyejjusa ...

    African Journals Online (AJOL)

    In 2013 the President of Uganda Yoweri Kaguta Museveni launched Uganda's Vision 2040, a thirty-year development master plan which has received both praise and criticism from Ugandans. Although Vision 2040 has received both praise and criticism in almost equal measure, in this article I argue that Vision 2040 does ...

  8. 21 CFR 886.1170 - Color vision tester.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Color vision tester. 886.1170 Section 886.1170...) MEDICAL DEVICES OPHTHALMIC DEVICES Diagnostic Devices § 886.1170 Color vision tester. (a) Identification. A color vision tester is a device that consists of various colored materials, such as colored yarns...

  9. Early Cognitive Vision as a Frontend for Cognitive Systems

    DEFF Research Database (Denmark)

    Krüger, Norbert; Pugeault, Nicolas; Baseski, Emre

    We discuss the need of an elaborated in-between stage bridging early vision and cognitive vision which we call `Early Cognitive Vision' (ECV). This stage provides semantically rich, disambiguated and largely task independent scene representations which can be used in many contexts. In addition...

  10. del alcoholismo

    Directory of Open Access Journals (Sweden)

    Rodrigo Arias Duque

    2005-01-01

    Full Text Available Desde el punto de vista farmacológico, es importante comprender qué es el alcohol y cómo actúa en el organismo. No existe una causa simple, sino una interacción complicada de factores neuroquímicos, fisiológicos, psicológicos y sociales que originan y desarrollan esta grave enfermedad fármaco-dependiente. La acción psicofisiológica y farmacodinámica del alcohol es fundamentalmente depresiva, por la reducción de la transmisión sináptica en el sistema nervioso humano. Es un hecho conocido que el consumo excesivo de alcohol causa una disfunción aguda y crónica del cerebro, produciendo trastornos en el sistema nervioso central, presentando alteraciones en la memoria y en las funciones intelectuales como cálculo, comprensión y aprendizaje. A nivel hepático tiene lugar, en su mayoría, el metabolismo del alcohol, produciéndose un hígado graso alcohólico, aumentando el tamaño, terminando en necrosis e inflamación grave del hígado; esto se llama hepatitis alcohólica, y si se sigue consumiendo alcohol se desarrollará la cirrosis. El alcohol también ha estado relacionado con alteraciones del miocardio; se ha constatado en animales de experimentación sanos que tanto la velocidad de contracción del músculo cardiaco y su máxima tensión disminuyen en presencia del alcohol, como consecuencia, la fuerza de cada contracción y el aumento de presión en el ventrículo izquierdo son menores, perdiendo eficacia el corazón como bomba.

  11. Vision enhanced navigation for unmanned systems

    Science.gov (United States)

    Wampler, Brandon Loy

    A vision based simultaneous localization and mapping (SLAM) algorithm is evaluated for use on unmanned systems. SLAM is a technique used by a vehicle to build a map of an environment while concurrently keeping track of its location within the map, without a priori knowledge. The work in this thesis is focused on using SLAM as a navigation solution when global positioning system (GPS) service is degraded or temporarily unavailable. Previous work on unmanned systems that lead up to the determination that a better navigation solution than GPS alone is first presented. This previous work includes control of unmanned systems, simulation, and unmanned vehicle hardware testing. The proposed SLAM algorithm follows the work originally developed by Davidson et al. in which they dub their algorithm MonoSLAM [1--4]. A new approach using the Pyramidal Lucas-Kanade feature tracking algorithm from Intel's OpenCV (open computer vision) library is presented as a means of keeping correct landmark correspondences as the vehicle moves through the scene. Though this landmark tracking method is unusable for long term SLAM due to its inability to recognize revisited landmarks, as opposed to the Scale Invariant Feature Transform (SIFT) and Speeded Up Robust Features (SURF), its computational efficiency makes it a good candidate for short term navigation between GPS position updates. Additional sensor information is then considered by fusing INS and GPS information into the SLAM filter. The SLAM system, in its vision only and vision/IMU form, is tested on a table top, in an open room, and finally in an outdoor environment. For the outdoor environment, a form of the slam algorithm that fuses vision, IMU, and GPS information is tested. The proposed SLAM algorithm, and its several forms, are implemented in C++ using an Extended Kalman Filter (EKF). Experiments utilizing a live video feed from a webcam are performed. The different forms of the filter are compared and conclusions are made on

  12. A Test of Vision Training and Potential Antecedents to Leaders' Visioning Ability. [and] Invited Reaction: Enabling Visionary Leadership.

    Science.gov (United States)

    Thoms, Peg; Greenberger, David B.; Meindl, James R.

    1998-01-01

    Thoms and Greenberger report how organizational leaders (n=111) who participated in vision training were compared to 50 who received other management training. The first group's visioning ability increased; their future time perspective and positivism were correlated with their visioning ability. Meindl offers a critique of Thoms's and…

  13. A method for extracting elbow feature based on machine vision

    Science.gov (United States)

    Wu, Bing; Chen, Yajie; Wang, Jianmi

    2017-04-01

    With the continuous development of computer technology, machine vision has become a hot research topic. And the machine vision is introduced into the field of mechanical processing, the detection of the surface defects of the machined objects. The application of machine vision to industrial production has become more and more popular. The research content of this paper will have broad prospects and development space in the field of machine vision. It has laid a foundation for solving the problems of manual processing, and plays a very important role in the development of universal CNC system with vision.

  14. Rethinking Robot Vision - Combining Shape and Appearance

    Directory of Open Access Journals (Sweden)

    Matthias J. Schlemmer

    2008-11-01

    Full Text Available Equipping autonomous robots with vision sensors provides a multitude of advantages by simultaneously bringing up difficulties with regard to different illumination conditions. Furthermore, especially with service robots, the objects to be handled must somehow be learned for a later manipulation. In this paper we summarise work on combining two different vision sensors, namely a laser range scanner and a monocular colour camera, for shape-capturing, detecting and tracking of objects in cluttered scenes without the need of intermediate user interaction. The use of different sensor types provides the advantage of separating the shape and the appearance of the object and therefore overcome the problem with changing illumination conditions. We describe the framework and its components of visual shape-capturing, fast 3D object detection and robust tracking as well as examples that show the feasibility of this approach.

  15. Computer vision syndrome (CVS) - Thermographic Analysis

    Science.gov (United States)

    Llamosa-Rincón, L. E.; Jaime-Díaz, J. M.; Ruiz-Cardona, D. F.

    2017-01-01

    The use of computers has reported an exponential growth in the last decades, the possibility of carrying out several tasks for both professional and leisure purposes has contributed to the great acceptance by the users. The consequences and impact of uninterrupted tasks with computers screens or displays on the visual health, have grabbed researcher’s attention. When spending long periods of time in front of a computer screen, human eyes are subjected to great efforts, which in turn triggers a set of symptoms known as Computer Vision Syndrome (CVS). Most common of them are: blurred vision, visual fatigue and Dry Eye Syndrome (DES) due to unappropriate lubrication of ocular surface when blinking decreases. An experimental protocol was de-signed and implemented to perform thermographic studies on healthy human eyes during exposure to dis-plays of computers, with the main purpose of comparing the existing differences in temperature variations of healthy ocular surfaces.

  16. Global visions for space exploration education

    Science.gov (United States)

    MacLeish, Marlene Y.; Thomson, William A.

    2010-04-01

    The National Space Biomedical Research Institute (NSBRI), established in 1997 through a National Aeronautics and Space Administration (NASA) competition, is a 12-university consortium dedicated to space life science research and education. NSBRI's Education and Public Outreach Program (EPOP) has partnered with Morehouse School of Medicine (MSM) to support NSBRI-NASA's education mission, which is to strengthen the nation's future science workforce through initiatives that communicate space exploration biology research findings to schools; support undergraduate and graduate programs; fund postdoctoral fellowships; and engage national and international audiences in collegial exchanges that promote global visions for space exploration education. This paper describes select MSM-NSBRI-EPOP activities, including scholarly interchanges with audiences in Austria, Canada, France, China, Greece, Italy, Scotland and Spain. The paper also makes the case for a global space exploration education vision that inspires students, engages educators and informs general audiences about the benefits that space exploration holds for life on Earth.

  17. Flicker Vision of Selected Light Sources

    Science.gov (United States)

    Otomański, Przemysław; Wiczyński, Grzegorz; Zając, Bartosz

    2017-10-01

    The results of the laboratory research concerning a dependence of flicker vision on voltage fluctuations are presented in the paper. The research was realized on a designed measuring stand, which included an examined light source, a voltage generator with amplitude modulation supplying the light source and a positioning system of the observer with respect to the observed surface. In this research, the following light sources were used: one incandescent lamp and four LED luminaires by different producers. The research results formulate a conclusion concerning the description of the influence of voltage fluctuations on flicker viewing for selected light sources. The research results indicate that LED luminaires are less susceptible to voltage fluctuations than incandescent bulbs and that flicker vision strongly depends on the type of LED source.

  18. Flicker Vision of Selected Light Sources

    Directory of Open Access Journals (Sweden)

    Otomański Przemysław

    2017-10-01

    Full Text Available The results of the laboratory research concerning a dependence of flicker vision on voltage fluctuations are presented in the paper. The research was realized on a designed measuring stand, which included an examined light source, a voltage generator with amplitude modulation supplying the light source and a positioning system of the observer with respect to the observed surface. In this research, the following light sources were used: one incandescent lamp and four LED luminaires by different producers. The research results formulate a conclusion concerning the description of the influence of voltage fluctuations on flicker viewing for selected light sources. The research results indicate that LED luminaires are less susceptible to voltage fluctuations than incandescent bulbs and that flicker vision strongly depends on the type of LED source.

  19. Acute Vision Loss Following Endoscopic Sinus Surgery

    Directory of Open Access Journals (Sweden)

    Serena Byrd

    2017-01-01

    Full Text Available A 41-year-old female with a history of uterine cancer and Celiac and Raynaud’s Disease presented to our institution with frequent migraines and nasal congestion. She underwent functional endoscopic sinus surgery (FESS and experienced acute unilateral vision loss postoperatively. Rapid recognition of the etiology and effective treatment are paramount given the permanent and irreversible vision loss that can result. Arterial vasospasm following FESS is rare. Patients with autoimmune diseases have perhaps an increased risk for vasospasm secondary to an increased vasoreactive profile. We present the first documented case of nitroglycerin sublingual therapy to successfully treat ophthalmic artery vasospasm following FESS. Nitroglycerin sublingual therapy is a promising treatment for ophthalmic vasospasm secondary to its ability to cross the blood-ocular barrier, its rapid onset of action, and its ability to promote relaxation of vascular smooth muscle.

  20. The vision of a smart city

    Energy Technology Data Exchange (ETDEWEB)

    Hall, R.E.; Bowerman, B.; Braverman, J.; Taylor, J.; Todosow, H.; Von Wimmersperg, U.

    2000-09-28

    The vision of ''Smart Cities'' is the urban center of the future, made safe, secure environmentally green, and efficient because all structures--whether for power, water, transportation, etc. are designed, constructed, and maintained making use of advanced, integrated materials, sensors, electronics, and networks which are interfaced with computerized systems comprised of databases, tracking, and decision-making algorithms. This paper discusses a current initiative being led by the Brookhaven National Laboratory to create a research, development and deployment agenda that advances this vision. This is anchored in the application of new technology to current urban center issues while looking 20 years into the future and conceptualizing a city framework that may exist.

  1. Outdoor Lighting: Physics, Vision and Perception

    CERN Document Server

    Schreuder, Duco

    2008-01-01

    This book covers theoretical aspects that are at the basis of lighting installations. It focuses on insight, backgrounds and coherence. There are many fundamental aspects that are essential for understanding why different ways to install and use lighting give different results. A purely pragmatic approach to solving practical lighting problems will lead to pitfalls. But as this book shows, on the basis of fundamental considerations on optics, light sources and vision, causes and effects that tend to be overlooked by lighting engineers and designers can be identified. The selection of subjects in this book is based on more than 50 years of experience in studying the fundamental and practical applications of lighting and vision. The author has given classes on these topics, in master courses at post-graduate and post-doctoral levels. Audience: graduate students, researchers, designers, engineers and consultants engaged in lighting, public lighting, lighting equipment and installations.

  2. 2020 Vision Project Summary, FY98

    Energy Technology Data Exchange (ETDEWEB)

    A Munoz; J. C. Clausen; K. P. Scott; K. W. Gordon

    1998-11-01

    The 2020 Vision project began in 1996 with two participating teachers and four classes. It has since grown to comprise more than a dozen participating teachers and hundreds of students across the country. Much of this growth took place in FY98, thanks to the accomplishment of several major goals: implementation of a mentor program, enhanced teacher training, a mid-year conference for students, recruitment of distant schools, and the development of an interactive Web site. The first part of this report describes these accomplishments, as well as future directions for 2020 Vision. The second part summarized the scenarios students wrote during the 1997-98 school year. it identifies recurrent themes in the students' scenarios and compares/contrasts them with scenarios written in the first two years of the project.

  3. Machine vision and appearance based learning

    Science.gov (United States)

    Bernstein, Alexander

    2017-03-01

    Smart algorithms are used in Machine vision to organize or extract high-level information from the available data. The resulted high-level understanding the content of images received from certain visual sensing system and belonged to an appearance space can be only a key first step in solving various specific tasks such as mobile robot navigation in uncertain environments, road detection in autonomous driving systems, etc. Appearance-based learning has become very popular in the field of machine vision. In general, the appearance of a scene is a function of the scene content, the lighting conditions, and the camera position. Mobile robots localization problem in machine learning framework via appearance space analysis is considered. This problem is reduced to certain regression on an appearance manifold problem, and newly regression on manifolds methods are used for its solution.

  4. Stereo vision based 3D game interface

    Science.gov (United States)

    Lu, Peng; Chen, Yisong; Dong, Chao

    2009-10-01

    Currently, keyboards, mice, wands and joysticks are still the most popular interactive devices. While these devices are mostly adequate, they are so unnatural that they are unable to give players the feeling of immersiveness. Researchers have begun investigation into natural interfaces that are intuitively simple and unobtrusive to the user. Recent advances in various signal-processing technologies, coupled with an explosion in the available computing power, have given rise to a number of natural human computer interface (HCI) modalities: speech, vision-based gesture recognition, etc. In this paper we propose a natural three dimensional (3D) game interface, which uses the motion of the player fists in 3D space to achieve the control of sixd egree of freedom (DOFs). And we also propose a real-time 3D fist tracking algorithm, which is based on stereo vision and Bayesian network. Finally, a flying game is used to test our interface.

  5. The motor side of depth vision.

    Science.gov (United States)

    Schreiber, K; Crawford, J D; Fetter, M; Tweed, D

    2001-04-12

    To achieve stereoscopic vision, the brain must search for corresponding image features on the two retinas. As long as the eyes stay still, corresponding features are confined to narrow bands called epipolar lines. But when the eyes change position, the epipolar lines migrate on the retinas. To find the matching features, the brain must either search different retinal bands depending on current eye position, or search retina-fixed zones that are large enough to cover all usual locations of the epipolar lines. Here we show, using a new type of stereogram in which the depth image vanishes at certain gaze elevations, that the search zones are retina-fixed. This being the case, motor control acquires a crucial function in depth vision: we show that the eyes twist about their lines of sight in a way that reduces the motion of the epipolar lines, allowing stereopsis to get by with smaller search zones and thereby lightening its computational load.

  6. Robust radial face detection for omnidirectional vision.

    Science.gov (United States)

    Dupuis, Yohan; Savatier, Xavier; Ertaud, Jean-Yves; Vasseur, Pascal

    2013-05-01

    Bio-inspired and non-conventional vision systems are highly researched topics. Among them, omnidirectional vision systems have demonstrated their ability to significantly improve the geometrical interpretation of scenes. However, few researchers have investigated how to perform object detection with such systems. The existing approaches require a geometrical transformation prior to the interpretation of the picture. In this paper, we investigate what must be taken into account and how to process omnidirectional images provided by the sensor. We focus our research on face detection and highlight the fact that particular attention should be paid to the descriptors in order to successfully perform face detection on omnidirectional images. We demonstrate that this choice is critical to obtaining high detection rates. Our results imply that the adaptation of existing object-detection frameworks, designed for perspective images, should be focused on the choice of appropriate image descriptors in the design of the object-detection pipeline.

  7. Dos visiones hispano-medievales de un cuento del Egipto faraónico: variaciones de Abū Ḥāmid Al-Garnāṭī y Juan Ruiz de Alcalá, Arcipreste de Hita, sobre El príncipe predestinado

    Directory of Open Access Journals (Sweden)

    Bellido Morillas, José María

    2009-06-01

    Full Text Available The Ramessid Egyptian tale «The Doomed Prince» had a Greek version, by Diodorus Siculus, an Islamic Egyptian version, collected by Abū Ḥāmid Al-Garnāṭī, and a Castillian version, by Juan Ruiz of Alcalá, related to the Persian versions (following Edgar Knowlton more than to the Celtic and neo-Latin ones. This pressence of the tale in Spain can be completed with the modern version of José Ramón Mélida. In this article we will study the relation of the Hispanic versions with the prototypic text. The wisdom of the wonderful 19th-century scholar Marcelino Menéndez y Pelayo will be continuously alleged.El cuento egipcio ramésida de «El príncipe predestinado» conoce una versión griega, por Diodoro de Sicilia, una versión árabo-egipcia, recogida por Abū Ḥāmid Al-Garnāṭī, y una versión castellana, por Juan Ruiz de Alcalá, más relacionado con las versiones persas (según Edgar Knowlton que con las neo-latinas y celtas. Esta presencia del cuento en España puede completarse con la moderna traducción de José Ramón Mélida. En el presente artículo estudiaremos las relaciones de las dos versiones hispanas con el texto prototípico. Haremos continua referencia a la sabiduría del erudito del siglo XIX Marcelino Menéndez y Pelayo.

  8. La implantacion del enfoque constructivista en el aula de ciencia: Estudio de caso multiple

    Science.gov (United States)

    Arroyo Betancourt, Luz I.

    Esta investigacion estudia la implantacion del enfoque constructivista en tres aulas de ciencia del contexto puertorriqueno. Se auscultaron las practicas educativas que utilizan maestras consideradas constructivistas y la correspondencia de sus practicas educativas con los elementos esenciales de la didactica que proponen los teoricos de los planteamientos constructivistas. Se ausculto, ademas, a que vision del enfoque constructivista responden las expresiones de las maestras acerca de su practica educativa y como compara con su quehacer, a la luz de los elementos esenciales de las visiones constructivistas piagetiana, social y radical. Se utilizo el diseno de estudio descriptivo de caso multiple. El estudio se baso en entrevistas a profundidad, revision de documentos y observacion no participativa a la sala de clases. El contexto fueron tres escuelas publicas de la Region Educativa de San Juan, una elemental, una intermedia y una superior. Los resultados confirmaron que la transicion hacia el enfoque constructivista es un proceso que toma tiempo, dedicacion y la participacion en adiestramientos y readiestramientos acerca del nuevo enfoque. Las maestras coinciden en la mayoria de las practicas educativas que utilizan para implantar el enfoque constructivista de ensenanza y difieren en algunas debido, probablemente, a que han tenido que adaptarlas a los correspondientes niveles de ensenanza: elemental, intermedio y superior. Dos de las maestras planifican por conceptos generadores, mientras que una de ellas planifica siguiendo la guia que recibe del Departamento de Educacion. Difieren ademas, en el enfasis que confieren al inquirir cientifico. Con relacion a la correspondencia entre la vision manifestada por las maestras a la luz de las visiones piagetiana, social y radical, aparentemente, las preguntas del protocolo de entrevistas no lograron evocar la informacion con suficiente profundidad, por lo que la investigadora tuvo que inferir las visiones de las

  9. Schopenhauer on vision and the colors.

    Science.gov (United States)

    Crone, R A

    1997-01-01

    Arthur Schopenhauer (1788-1860) published his book, On Vision and the Colors in 1816. He started from Aristotle's linear color system and Goethe's three pairs of contrast colors. His work preceded Hering's theory of opponent colors but his path to insight was blocked by his anti-Newtonianism and his neo-Hellenistic attitude toward science. Because of his theory of the subjectivity of colors he was a forerunner of the psycho-physiological variant of neo-Kantianism.

  10. Remote Vision Systems for Teleoperated Ground Vehicles

    Science.gov (United States)

    1991-05-01

    Paperworkr Reductlo Proyect (0704-0188). Washingtont. DC 20503._____________________ I AGENCY USE ONLY (Leave bAW4V 2 REPORT DATE 3 REPORT TYPE AND DATES...of the sensory feedback to the operator." [2]. Based on NOSC’s experience with teleoperated vehicles and research in remote presence principles...effort. Lessons learned from this development, and from field tests of TOV vision systems, are presented in this paper. )UEe’ Figure 1. TOV Remote

  11. Vision Trainer Teaches Focusing Techniques at Home

    Science.gov (United States)

    2015-01-01

    Based on work Stanford Research Institute did for Ames Research Center, Joseph Trachtman developed a vision trainer to treat visual focusing problems in the 1980s. In 2014, Trachtman, operating out of Seattle, released a home version of the device called the Zone-Trac. The inventor has found the biofeedback process used by the technology induces an alpha-wave brain state, causing increased hand-eye coordination and reaction times, among other effects

  12. Vision Algorithms Catch Defects in Screen Displays

    Science.gov (United States)

    2014-01-01

    Andrew Watson, a senior scientist at Ames Research Center, developed a tool called the Spatial Standard Observer (SSO), which models human vision for use in robotic applications. Redmond, Washington-based Radiant Zemax LLC licensed the technology from NASA and combined it with its imaging colorimeter system, creating a powerful tool that high-volume manufacturers of flat-panel displays use to catch defects in screens.

  13. Binocular combination in abnormal binocular vision

    Science.gov (United States)

    Ding, Jian; Klein, Stanley A.; Levi, Dennis M.

    2013-01-01

    We investigated suprathreshold binocular combination in humans with abnormal binocular visual experience early in life. In the first experiment we presented the two eyes with equal but opposite phase shifted sine waves and measured the perceived phase of the cyclopean sine wave. Normal observers have balanced vision between the two eyes when the two eyes' images have equal contrast (i.e., both eyes contribute equally to the perceived image and perceived phase = 0°). However, in observers with strabismus and/or amblyopia, balanced vision requires a higher contrast image in the nondominant eye (NDE) than the dominant eye (DE). This asymmetry between the two eyes is larger than predicted from the contrast sensitivities or monocular perceived contrast of the two eyes and is dependent on contrast and spatial frequency: more asymmetric with higher contrast and/or spatial frequency. Our results also revealed a surprising NDE-to-DE enhancement in some of our abnormal observers. This enhancement is not evident in normal vision because it is normally masked by interocular suppression. However, in these abnormal observers the NDE-to-DE suppression was weak or absent. In the second experiment, we used the identical stimuli to measure the perceived contrast of a cyclopean grating by matching the binocular combined contrast to a standard contrast presented to the DE. These measures provide strong constraints for model fitting. We found asymmetric interocular interactions in binocular contrast perception, which was dependent on both contrast and spatial frequency in the same way as in phase perception. By introducing asymmetric parameters to the modified Ding-Sperling model including interocular contrast gain enhancement, we succeeded in accounting for both binocular combined phase and contrast simultaneously. Adding binocular contrast gain control to the modified Ding-Sperling model enabled us to predict the results of dichoptic and binocular contrast discrimination experiments

  14. AI And Early Vision - Part II

    Science.gov (United States)

    Julesz, Bela

    1989-08-01

    A quarter of a century ago I introduced two paradigms into psychology which in the intervening years have had a direct impact on the psychobiology of early vision and an indirect one on artificial intelligence (AI or machine vision). The first, the computer-generated random-dot stereogram (RDS) paradigm (Julesz, 1960) at its very inception posed a strategic question both for AI and neurophysiology. The finding that stereoscopic depth perception (stereopsis) is possible without the many enigmatic cues of monocular form recognition - as assumed previously - demonstrated that stereopsis with its basic problem of finding matches between corresponding random aggregates of dots in the left and right visual fields became ripe for modeling. Indeed, the binocular matching problem of stereopsis opened up an entire field of study, eventually leading to the computational models of David Marr (1982) and his coworkers. The fusion of RDS had an even greater impact on neurophysiologists - including Hubel and Wiesel (1962) - who realized that stereopsis must occur at an early stage, and can be studied easier than form perception. This insight recently culminated in the studies by Gian Poggio (1984) who found binocular-disparity - tuned neurons in the input stage to the visual cortex (layer IVB in V1) in the monkey that were selectively triggered by dynamic RDS. Thus the first paradigm led to a strategic insight: that with stereoscopic vision there is no camouflage, and as such was advantageous for our primate ancestors to evolve the cortical machinery of stereoscopic vision to capture camouflaged prey (insects) at a standstill. Amazingly, although stereopsis evolved relatively late in primates, it captured the very input stages of the visual cortex. (For a detailed review, see Julesz, 1986a)

  15. Low Obstacle Detection Using Stereo Vision

    Science.gov (United States)

    2016-10-09

    clouds and keeps the model assumptions to a minimum. To evaluate the algorithm , a new stereo dataset is provided and made available online. We present...vehicles and ground robots, the detection of obstacles is an essential element for higher-level tasks such as navigation and path planning . The problem...OVERVIEW OF THE ALGORITHM The proposed algorithm relies on three inputs: (i) A dense 3D point cloud from a stereo-vision system calculated with Efficient

  16. Child With Red Eye and Blurry Vision.

    Science.gov (United States)

    Song, Joo Lee; Elkhunovich, Marsha; Rankin, Jessica Hersman

    2017-10-01

    Point-of-care ocular ultrasound can provide the clinician with more information about potential intraorbital and extraocular pathology, especially in cases when direct visualization of the eye is limited. This case report describes the findings in a pediatric patient who presented with a 1-month history of eye injection and worsening blurry vision. After point-of-care ultrasound demonstrated abnormal debris in the posterior vitreous cavity, subsequent evaluation revealed a diagnosis of pars planitis.

  17. Colour Vision Impairment in Young Alcohol Consumers.

    Science.gov (United States)

    Brasil, Alódia; Castro, Antônio José O; Martins, Isabelle Christine V S; Lacerda, Eliza Maria C B; Souza, Givago S; Herculano, Anderson Manoel; Rosa, Alexandre Antônio M; Rodrigues, Anderson R; Silveira, Luiz Carlos L

    2015-01-01

    Alcohol consumption among young adults is widely accepted in modern society and may be the starting point for abusive use of alcohol at later stages of life. Chronic alcohol exposure can lead to visual function impairment. In the present study, we investigated the spatial luminance contrast sensitivity, colour arrangement ability, and colour discrimination thresholds on young adults that weekly consume alcoholic beverages without clinical concerns. Twenty-four young adults were evaluated by an ophthalmologist and performed three psychophysical tests to evaluate their vision functions. We estimated the spatial luminance contrast sensitivity function at 11 spatial frequencies ranging from 0.1 to 30 cycles/degree. No difference in contrast sensitivity was observed comparing alcohol consumers and control subjects. For the evaluation of colour vision, we used the Farnsworth-Munsell 100 hue test (FM 100 test) to test subject's ability to perform a colour arrangement task and the Mollon-Reffin test (MR test) to measure subject's colour discrimination thresholds. Alcohol consumers made more mistakes than controls in the FM100 test, and their mistakes were diffusely distributed in the FM colour space without any colour axis preference. Alcohol consumers also performed worse than controls in the MR test and had higher colour discrimination thresholds compared to controls around three different reference points of a perceptually homogeneous colour space, the CIE 1976 chromaticity diagram. There was no colour axis preference in the threshold elevation observed among alcoholic subjects. Young adult weekly alcohol consumers showed subclinical colour vision losses with preservation of spatial luminance contrast sensitivity. Adolescence and young adult age are periods of important neurological development and alcohol exposure during this period of life might be responsible for deficits in visual functions, especially colour vision that is very sensitive to neurotoxicants.

  18. Utility-Based Control for Computer Vision

    OpenAIRE

    Levitt, Tod S.; Binford, Thomas O.; Ettinger, Gil J.; Gelband, Patrice

    2013-01-01

    Several key issues arise in implementing computer vision recognition of world objects in terms of Bayesian networks. Computational efficiency is a driving force. Perceptual networks are very deep, typically fifteen levels of structure. Images are wide, e.g., an unspecified-number of edges may appear anywhere in an image 512 x 512 pixels or larger. For efficiency, we dynamically instantiate hypotheses of observed objects. The network is not fixed, but is created incrementally at runtime. Gener...

  19. Colour Vision Impairment in Young Alcohol Consumers.

    Directory of Open Access Journals (Sweden)

    Alódia Brasil

    Full Text Available Alcohol consumption among young adults is widely accepted in modern society and may be the starting point for abusive use of alcohol at later stages of life. Chronic alcohol exposure can lead to visual function impairment. In the present study, we investigated the spatial luminance contrast sensitivity, colour arrangement ability, and colour discrimination thresholds on young adults that weekly consume alcoholic beverages without clinical concerns. Twenty-four young adults were evaluated by an ophthalmologist and performed three psychophysical tests to evaluate their vision functions. We estimated the spatial luminance contrast sensitivity function at 11 spatial frequencies ranging from 0.1 to 30 cycles/degree. No difference in contrast sensitivity was observed comparing alcohol consumers and control subjects. For the evaluation of colour vision, we used the Farnsworth-Munsell 100 hue test (FM 100 test to test subject's ability to perform a colour arrangement task and the Mollon-Reffin test (MR test to measure subject's colour discrimination thresholds. Alcohol consumers made more mistakes than controls in the FM100 test, and their mistakes were diffusely distributed in the FM colour space without any colour axis preference. Alcohol consumers also performed worse than controls in the MR test and had higher colour discrimination thresholds compared to controls around three different reference points of a perceptually homogeneous colour space, the CIE 1976 chromaticity diagram. There was no colour axis preference in the threshold elevation observed among alcoholic subjects. Young adult weekly alcohol consumers showed subclinical colour vision losses with preservation of spatial luminance contrast sensitivity. Adolescence and young adult age are periods of important neurological development and alcohol exposure during this period of life might be responsible for deficits in visual functions, especially colour vision that is very sensitive to

  20. Operational Based Vision Assessment Research: Depth Perception

    Science.gov (United States)

    2014-11-01

    M. Stereoscopic vision induced by parallax images on HMD and its influence on visual functions. In: Shumaker R, ed. Virtual and mixed reality – new... vestibular , interpretation of the visual environment is considered the strongest.7 Depth perception is of particular importance, as many military aviation...initiated a flare maneuver when he judged his plane to be about 1 foot above the ground, when in reality he was about 15 feet; the plane stalled and