Ln3+ (Ln=Ce, Tb, Dy) and Hf doping of LuI3 powders – A material and spectroscopic study

International Nuclear Information System (INIS)

Wiatrowska, Aneta; Keur, Wilco; Ronda, Cees

2016-01-01

The moisture sensitivity of LuI 3 :Ce,Hf and luminescent properties of undoped LuI 3 and LuI 3 :M (M=Ce 3+ , Tb 3+ , Dy 3+ ) powders were investigated. The possibility of improving the air and moisture stability of LuI 3 :Ce by Hf doping was tested. It was proven that the Hf contribution to the LuI 3 :Ce stability is very limited and is insignificant to render LuI 3 :Ce scintillator powders suitable for applications. Photoluminescence results of LuI 3 without dopants added on purpose showed luminescence due to a plurality of rare-earth elements' impurities. Two types of self-trapped luminescence were found. Energy transfer between host lattice, self-trapped excitons and rare-earth ions was investigated.

76 FR 41811 - Kellaway Proposed Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, San Luis...

Science.gov (United States)

2011-07-15

...] Kellaway Proposed Low-Effect Habitat Conservation Plan for the Morro Shoulderband Snail, San Luis Obispo... species in the community of Los Osos, San Luis Obispo County, California. The applicants would implement a... Los Osos, San Luis Obispo County, California. The applicants are requesting a permit for take of Morro...

In memory of Luis Bernardo López

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Escuela de Estudios en Psicoanálisis y Cultura

2017-01-01

Full Text Available In this issue of the magazine From the Garden of Freud we want to remember what the presence of Luis Bernardo López meant in the spirit of this publication. The design and the initial model were the work of Santiago Mutis, as well as the idea of inviting a plastic artist for each number and the care of the graphic part for that exercise. However, Luis Bernardo also participated in his conception, and in his birth, in 2001, since it was his first director and editor, work that continued the following year to later take back the address of the number 7 and to advance the graphic edition of the Numbers 8 to 13. In this work I knew how to give the best shape to the project of a serial publication with which we dreamed since the year 2000.

75 FR 17430 - Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Kern, San Luis Obispo...

Science.gov (United States)

2010-04-06

...] Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Kern, San Luis Obispo, Tulare... Wildlife Refuges (NWRs) located in Kern, San Luis Obispo, Tulare, and Ventura counties of California. We... developing a CCP for Hopper Mountain, Bitter Creek, and Blue Ridge NWRs in Kern, San Luis Obispo, Tulare, and...

Geologic Map of the San Luis Quadrangle, Costilla County, Colorado

Science.gov (United States)

Machette, Michael N.; Thompson, Ren A.; Drenth, Benjamin J.

2008-01-01

The map area includes San Luis and the primarily rural surrounding area. San Luis, the county seat of Costilla County, is the oldest surviving settlement in Colorado (1851). West of the town are San Pedro and San Luis mesas (basalt-covered tablelands), which are horsts with the San Luis fault zone to the east and the southern Sangre de Cristo fault zone to the west. The map also includes the Sanchez graben (part of the larger Culebra graben), a deep structural basin that lies between the San Luis fault zone (on the west) and the central Sangre de Cristo fault zone (on the east). The oldest rocks exposed in the map area are the Pliocene to upper Oligocene basin-fill sediments of the Santa Fe Group, and Pliocene Servilleta Basalt, a regional series of 3.7?4.8 Ma old flood basalts. Landslide deposits and colluvium that rest on sediments of the Santa Fe Group cover the steep margins of the mesas. Rare exposures of the sediment are comprised of siltstones, sandstones, and minor fluvial conglomerates. Most of the low ground surrounding the mesas and in the graben is covered by surficial deposits of Quaternary age. The alluvial deposits are subdivided into three Pleistocene-age units and three Holocene-age units. The oldest Pleistocene gravel (unit Qao) forms extensive coalesced alluvial fan and piedmont surfaces, the largest of which is known as the Costilla Plain. This surface extends west from San Pedro Mesa to the Rio Grande. The primary geologic hazards in the map area are from earthquakes, landslides, and localized flooding. There are three major fault zones in the area (as discussed above), and they all show evidence for late Pleistocene to possible Holocene movement. The landslides may have seismogenic origins; that is, they may be stimulated by strong ground shaking during large earthquakes. Machette and Thompson based this geologic map entirely on new mapping, whereas Drenth supplied geophysical data and interpretations.

Optical spectroscopy and luminescence quenching of LuI3:Ce3+

International Nuclear Information System (INIS)

Birowosuto, M.D.; Dorenbos, P.; Haas, J.T.M. de; Eijk, C.W.E. van; Kraemer, K.W.; Guedel, H.U.

2006-01-01

Optical spectroscopy of LuI 3 doped with Ce 3+ using ultraviolet and visible light excitation is reported. LuI 3 host excitation and emission and 4f-5d excitation and emission of Ce 3+ are observed. An empirical model based on crystal field splitting was used to estimate the energy of the highest 4f-5d excitation band. The crystal field splitting and centroid shift were compared to those of LuCl 3 :Ce 3+ and LuBr 3 :Ce 3+ . Temperature dependence of X-ray excited luminescence spectra shows thermal quenching, whereas that of the decay curve of Ce 3+ emission excited at the lowest 5d band of Ce 3+ does not indicate the presence of quenching of Ce 3+ emission for temperature below 625K. The quenching in LuI 3 :Ce 3+ therefore occurs before the 5d Ce 3+ emission takes place

The cinephilic citation in the essay films by José Luis Guerin and Isaki Lacuesta

OpenAIRE

Vidal, Belén

2014-01-01

This paper investigates the contemporary turn to cinephilia as an object of theoretical analysis and historiographical investigation through the essay films by José Luis Guerin and Isaki Lacuesta. In particular, I focus on Innisfree (José Luis Guerin 1990), Tren de sombras (Train of Shadows, José Luis Guerin 1997), Las variaciones Marker (The Marker Variations, Isaki Lacuesta 2008) and La noche que no acaba (All the Night Long, Isaki Lacuesta 2010). This work recovers and restages “cinephilic...

78 FR 73557 - Guadalupe-Nipomo Dunes National Wildlife Refuge, San Luis Obispo County, CA: Intent To Prepare a...

Science.gov (United States)

2013-12-06

...-FF08R00000] Guadalupe-Nipomo Dunes National Wildlife Refuge, San Luis Obispo County, CA: Intent To Prepare a...) for the Guadalupe-Nipomo Dunes National Wildlife Refuge located in San Luis Obispo County of... (Refuge) in San Luis Obispo County, California. This notice complies with our CCP policy to (1) advise...

Art as Critical Public Pedagogy: A Qualitative Study of Luis Camnitzer and His Conceptual Art

Science.gov (United States)

Zorrilla, Ana; Tisdell, Elizabeth J.

2016-01-01

This qualitative study explored the connection between art and adult education for critical consciousness from the perspective and work of conceptual artist, Luis Camnitzer. The theoretical framework is grounded in the critical public pedagogy literature. Data collection methods included interviews with conceptual artist Luis Camnitzer and with…

Keisri madrusest impeeriumi esivedurijuhiks / Lui Pikkov ; kommenteerinud Hans Treimann

Index Scriptorium Estoniae

Pikkov, Lui, 1935-2008

2009-01-01

Lui Pikkov oma onust Otto Piksarist (Pikkov), kes sündis Raplamaal Saunakülas, oli madruseks Nikolai II jahtlaeval Poljarnaja Zvezda, töötas vedurijuhina Eestis, oli Eesti NSV Ülemnõukogu saadik

ÎNCEPUTURILE FILOSOFICE ALE LUI LUCIAN BLAGA

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Svetlana COANDĂ

2016-12-01

Full Text Available În articol sunt evidenţiate etapele evoluţiei spirituale a lui Lucian Blaga, este demonstrată importanţa primei perioade de activitate a gânditorului român, perioada anilor 1914-1919, care constituie începutul activităţii filosofice a lui L.Blaga, acesta fiind deosebit de semnificativ pentru înţelegerea genezei ideilor sale, a influenţelor pe care le-a suportat, a continuităţii tematicii şi reflecţiilor filosofice, care au culminat cu elaborarea unui profund sistem filosofic. Sunt analizate în detaliu ideile filosofice centrale, temele de meditaţie din lucrările scrise şi publicate de L.Blaga între anii 1914 şi 1919: analiza şi aprecierea ideilor filosofului francez Henri Bergson, coraportul dintre filosofie şi ştiinţă, aportul specific al filosofiei la formarea concepţiei despre lume a personalităţii, rolul deosebit de important al metodelor de cercetare în asigurarea obţinerii adevărului în procesul de cunoaştere, unitatea formelor culturii etc.THE PHILOSOFICAL BEGINNINGS OF LUCIAN BLAGAThis article highlights the spiritual evolution steps of Lucian Blaga and demonstrates the importance of the first period of activity of the Romanian thinker - the period between 1914 and 1919. This time frame constitutes the beginning of his philosophical activity and it is especially significant to understand the genesis of his ideas, of his influences, the continuity of the philosophical themes and reflections that culminated with the elaboration of a profound philosophical system. Analysis is done over the central philosophical ideas, the meditation themes from the works written and published by Lucian Blaga between 1914 and 1919: the analysis and appreciation of the ideas of the French philosopher Henri Bergson, the correlation between philosophy and science, the specific input of philosophy in the formation of the world conception on personality, the extremely important role of the research methods in ensuring the

Geothermal resource assessment of western San Luis Valley, Colorado

Energy Technology Data Exchange (ETDEWEB)

Zacharakis, Ted G.; Pearl, Richard Howard; Ringrose, Charles D.

1983-01-01

The Colorado Geological Survey initiated and carried out a fully integrated assessment program of the geothermal resource potential of the western San Luis Valley during 1979 and 1980. The San Luis Valley is a large intermontane basin located in southcentral Colorado. While thermal springs and wells are found throughout the Valley, the only thermal waters found along the western part of the Valley are found at Shaw Warm Springs which is a relatively unused spring located approximately 6 miles (9.66 km) north of Del Norte, Colorado. The waters at Shaws Warm Spring have a temperature of 86 F (30 C), a discharge of 40 gallons per minute and contain approximately 408 mg/l of total dissolved solids. The assessment program carried out din the western San Luis Valley consisted of: soil mercury geochemical surveys; geothermal gradient drilling; and dipole-dipole electrical resistivity traverses, Schlumberger soundings, Audio-magnetotelluric surveys, telluric surveys, and time-domain electro-magnetic soundings and seismic surveys. Shaw Warm Springs appears to be the only source of thermal waters along the western side of the Valley. From the various investigations conducted the springs appear to be fault controlled and is very limited in extent. Based on best evidence presently available estimates are presented on the size and extent of Shaw Warm Springs thermal system. It is estimated that this could have an areal extent of 0.63 sq. miles (1.62 sq. km) and contain 0.0148 Q's of heat energy.

75 FR 76726 - San Luis Solar, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes Request...

Science.gov (United States)

2010-12-09

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ER11-2196-000] San Luis Solar, LLC; Supplemental Notice That Initial Market- Based Rate Filing Includes Request for Blanket... proceeding of San Luis [[Page 76727

En el día del bibliotecario: Homenaje al Doctor Luis Ángel Arango

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Ernesto Delgado

1962-04-01

Full Text Available Palabras pronunciadas por el presidente de la Asociación Colombiana de Bibliotecarios, señor Ernesto Delgado, en el Salón de Actos de la Biblioteca Luis Ángel Arango, el sábado 28 de abril, Día del Bibliotecario, con motivo del homenaje que dicha corporación rindió a la memoria del doctor Luis Ángel Arango.

El confesor regio Fray Luis Aliaga y la controversia Inmaculista

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Callado Estela, Emilio

2016-06-01

Full Text Available The present article analyses the participation of the aragonese dominican monk Luis Aliaga (Zaragoza, 1565-† Zaragoza, 1626, last confessor of Philip III and Inquiring general of the Hispanic Monarchy from 1619, in one of the most white hot theological controversies along the 17th century: the Immaculate Conception of the Virgin MaryEl presente artículo analiza la participación del dominico aragonés fray Luis Aliaga (Zaragoza, 1565-† Zaragoza, 1626 , último confesor de Felipe III e Inquisidor general de la Monarquía Hispánica desde 1619, en una de las controversias teológicas más candentes a lo largo del siglo XVII: la Inmaculada Concepción de la Virgen María.

Vida y obra de Luis Jiménez Moreno (1929-2007

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Antonio Jiménez García

2008-10-01

Full Text Available Luis Jiménez Moreno passed away on 27 of October, 2007, 77 years old. For the last 30 years he was professor at Universidad Complutense de Madrid. He became Full Professor. He had studied in Salamanca, Roma, Valencia and München. He got a Ph. Degree whith a tesis about Nietzsche`s Antropological Thought by leading of José Luis López Aranguren. He was High School Teacher in Andujar, Ávila and Badalona; after he was professor at Universities of Barcelona and Madrid. This article develops information about his life and his works: books, articles, essays, conferences, papers to Congress, Symposios, Scientic meetings…

Origen, protagonistas y alianzas. El Banco de San Luis Potosí, 1897-1916

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Moisés Gámez Rodriguez

2017-04-01

Full Text Available En este trabajo se expone el origen de la banca en San Luis Potosí, cuyo estudio se centra a partir de la legislación bancaria de 1897, que representa históricamente la institucionalización y modernización de la empresa bancaria mexicana. Como punto de partida se plantea que los perfiles financieros y empresariales de los involucrados en el nacimiento del Banco de San Luis Potosí, y representados en los miembros de su Consejo de Administración, son importantes para entender la configuración del sistema, y también que las redes extendidas en torno a dicha empresa muestran prácticas financieras de la economía de México en el último cuarto del siglo XIX. _________________________ This article explains the origin of banking in San Luis Potosi from the legislation in 1897, which historically represents the institutionalization and modernization of Mexican banking companies. As a starting point, it argues that financial and business profiles of those involved in the birth of Bank of San Luis Potosi and represented in the Board of Directors are important to understand the system configuration. Furthermore, the networks extended around the banking company show financial practices of Mexican economy in the last quarter of the 19th century.

Amphibians and reptiles of the state of San Luis Potosí, Mexico, with comparisons with adjoining states.

Science.gov (United States)

Lemos-Espinal, Julio A; Smith, Geoffrey R; Woolrich-Piña, Guillermo A

2018-01-01

A summary of the species of amphibians and reptiles of the state has been compiled, including their geographic distributions, habitats, and conservation statuses. The herpetofauna of San Luis Potosí consists of 41 species of amphibians and 141 species of reptiles. San Luis Potosí shares the highest number of species with Hidalgo and Tamaulipas, and the least number of species with Nuevo León. In San Luis Potosí, there are several taxa of particular conservation concern including salamanders, emydid and trionychid turtles, anguid and xenosaurid lizards, and natricid and colubrid snakes.

Port San Luis, California Tsunami Forecast Grids for MOST Model

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The Port San Luis, California Forecast Model Grids provides bathymetric data strictly for tsunami inundation modeling with the Method of Splitting Tsunami (MOST)...

78 FR 16569 - Iowa Pacific Holdings, LLC, Permian Basin Railways, and San Luis & Rio Grande Railroad-Corporate...

Science.gov (United States)

2013-03-15

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35721] Iowa Pacific Holdings, LLC, Permian Basin Railways, and San Luis & Rio Grande Railroad--Corporate Family Transaction... subsidiaries Permian Basin Railways (PBR) and San Luis & Rio Grande Railroad (SLRG), and Massachusetts Coastal...

Magmatism and mineralization ages from northeast area of La Sierra de San Luis, Argentina

International Nuclear Information System (INIS)

Ulacco, Jose H

2001-01-01

Three igneous rock groups, characterized as pre, sin and post-kinematics, have intruded the crystalline basement of Sierra de San Luis, Argentina. The ore deposits are associated with Devonian to Carboniferous epizonal granite stocks and batholiths in an area underlain by metamorphic rocks. This granitoids are characterized as post-kinematics magmatism. Model lead ages on the ore deposits (338,8 - 292,1 Ma) are strongly supported by K-Ar ages of the intrusives. The bulk of the north Sierra de San Luis ore deposits are genetically related to late Carboniferous granite plutons. The ore bodies are tungsten veins with greisen envelopes, lead veins, epithermal fluorite veins and REE and Th deposit. A generalized scheme of ore bodies related to granites is proposed. The ore deposits and their lithotectonic setting are characteristic of Gondwana metallogenetic Epoch in the Sierra de San Luis (au)

Amphibians and reptiles of the state of San Luis Potosí, Mexico, with comparisons with adjoining states

Science.gov (United States)

Lemos-Espinal, Julio A.; Smith, Geoffrey R.; Woolrich-Piña, Guillermo A.

2018-01-01

Abstract A summary of the species of amphibians and reptiles of the state has been compiled, including their geographic distributions, habitats, and conservation statuses. The herpetofauna of San Luis Potosí consists of 41 species of amphibians and 141 species of reptiles. San Luis Potosí shares the highest number of species with Hidalgo and Tamaulipas, and the least number of species with Nuevo León. In San Luis Potosí, there are several taxa of particular conservation concern including salamanders, emydid and trionychid turtles, anguid and xenosaurid lizards, and natricid and colubrid snakes. PMID:29731682

Luis Fayad. Dalla narrativa urbana agli innesti socioculturali. Presentazione

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Martha L. Canfield

2013-03-01

Full Text Available The article looks at Luis Fayad’s novel La caída de los puntos cardinales (2000 in order to foreground the influence of Arabic on the Colom- bian author whose grandparents were Lebanese. Born in Bogotá in 1945, Fayad published the novel after being identified as one of the first Colombian novelists dealing with urban literature. It represents a change of direction in his career, as Fayad narrates the entire life of six main characters, four men and two women, who decide to leave Lebanon and migrate to South America, ending up in Colombia. The analysis will focus on the importance of the circulation of the book in Italy by virtue of issues of intercultural exchange embedded in the novel. La caída de los puntos cardinales mixes Arabic tradition and Colombian customs; in the novel, Fayad achieves a cross-cultural story that may provide a successful model of integration. The Spanish-Italian translation and a critical approach to the language used by the novelist and employed by the translator will complete the essay.

Exposiciones 1958, presentadas en la Biblioteca Luis Ángel Arango

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Boletín Cultural y Bibliográfico Banco de la República

1958-12-01

Full Text Available Se describe el desarrollo de la actividades culturales del año 1958 correspondientes a las exposiciones de arte presentadas en la Biblioteca Luis Ángel Arango del Banco de la República.

76 FR 31678 - San Luis & Rio Grande Railroad-Continuance in Control Exemption-Saratoga and North Creek Railway...

Science.gov (United States)

2011-06-01

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board [Docket No. FD 35499] San Luis & Rio Grande Railroad--Continuance in Control Exemption--Saratoga and North Creek Railway, LLC San Luis & Rio Grande Railroad (SLRG), a Class III rail carrier, has filed a verified notice of exemption to continue in...

Geomorphic evolution of the San Luis Basin and Rio Grande in southern Colorado and northern New Mexico

Science.gov (United States)

Ruleman, Chester A.; Machette, Michael; Thompson, Ren A.; Miggins, Dan M; Goehring, Brent M; Paces, James B.

2016-01-01

The San Luis Basin encompasses the largest structural and hydrologic basin of the Rio Grande rift. On this field trip, we will examine the timing of transition of the San Luis Basin from hydrologically closed, aggrading subbasins to a continuous fluvial system that eroded the basin, formed the Rio Grande gorge, and ultimately, integrated the Rio Grande from Colorado to the Gulf of Mexico. Waning Pleistocene neotectonic activity and onset of major glacial episodes, in particular Marine Isotope Stages 11–2 (~420–14 ka), induced basin fill, spillover, and erosion of the southern San Luis Basin. The combined use of new geologic mapping, fluvial geomorphology, reinterpreted surficial geology of the Taos Plateau, pedogenic relative dating studies, 3He surface exposure dating of basalts, and U-series dating of pedogenic carbonate supports a sequence of events wherein pluvial Lake Alamosa in the northern San Luis Basin overflowed, and began to drain to the south across the closed Sunshine Valley–Costilla Plain region ≤400 ka. By ~200 ka, erosion had cut through topographic highs at Ute Mountain and the Red River fault zone, and began deep-canyon incision across the southern San Luis Basin. Previous studies indicate that prior to 200 ka, the present Rio Grande terminated into a large bolson complex in the vicinity of El Paso, Texas, and systematic, headward erosional processes had subtly integrated discontinuously connected basins along the eastern flank of the Rio Grande rift and southern Rocky Mountains. We propose that the integration of the entire San Luis Basin into the Rio Grande drainage system (~400–200 ka) was the critical event in the formation of the modern Rio Grande, integrating hinterland basins of the Rio Grande rift from El Paso, Texas, north to the San Luis Basin with the Gulf of Mexico. This event dramatically affected basins southeast of El Paso, Texas, across the Chisos Mountains and southeastern Basin and Range province, including the Rio

CONTRIBUTIONS TO RICKETTSIOSES RESEARCH IN COLOMBIA (1917-1943), LUIS B. PATIÑO CAMARGO

Science.gov (United States)

FACCINI-MARTÍNEZ, Álvaro A.; BOTERO-GARCÍA, Carlos A.; HIDALGO, Marylin

2016-01-01

Colombian physician Luis Benigno Patiño Camargo was one of the pioneers in the study of rickettsioses in South America, demonstrating for the first time in Colombia the presence of Rickettsia rickettsii as the etiological agent of a highly deadly exanthematic febrile syndrome in the 1930s. However, Patiño-Camargo performed other investigations from 1917-1943, which represent the first descriptions and scientific evidence of the presence of R. prowazekii and R. typhi in Colombia. Almost 60 years after the latest research conducted by Dr. Patiño-Camargo, rickettsioses were again a matter of interest and research. In the last decade over 20 research studies have been published, showing new endemic areas for R. rickettsii, as well as the description of new rickettsial species in Colombia. PMID:27074327

JORGE LUIS BORGES – SERGIO PITOL: INFLUENCES, SYMMETRIES AND LITERARY TRANSFERENCES JORGE LUIS BORGES – SERGIO PITOL: INFLUENCIAS, SIMETRÍAS Y TRANSFERENCIAS LITERARIAS

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Alejandro Hermosilla Sánchez

2011-02-01

Full Text Available In the entire Pitol‘s work, there is a continuous masquerade and an ungovernable fusion of the forces that link his life and his literature that has dislocated absolutely the "certainties" that we can get to own. Above all, for having been capable to improve the autobiographic genre helped by his way to understand, as Jorge Luis Borges and Marcel Schowb did, the reality as unverified and fiction as one more of many possibilities of what is "real". In this article, we will try to go deeper into the "discredit of the autobiographic and critical genre made by Sergio Pitol in La trilogía de la memoria thanks to the influence of Jorge Luis Borge´s literature.En toda la obra de Pitol hay un enmascaramiento continuo y una fusión ingobernable de las fuerzas que vinculan su vida y su literatura que ha terminado por dislocar absolutamente las "certezas" que podemos a llegar a poseer sobre ambas. Ante todo, por haber sido capaz de dar una nueva vuelta de tuerca más al género autobiográfico gracias a su manera de entender, tal y como hicieron Jorge Luis Borges y el francés Marcel Schwob, la realidad como inverificable y la ficción como una más de las muchas posibilidades de lo "real". En este artìculo, intentaremos profundizar en la desacreditación del género autobiográfico y crítico hecho por Pitol en La trilogía de la memoria o Domar a la divina garza gracias a la influencia de la literatura de Borges.

The San Luis Project: An Attempt to Decentralize Physics in Mexico

Science.gov (United States)

Will, T. A.; Valladares, A. A.

1976-01-01

Described is a project being conducted by the Physics Institute of the University of San Luis Potori, Mexico, in order to avoid concentrating physics education and research activities in Mexico City. (SL)

76 FR 33362 - Request for Interest in Lease Arrangement on Federal Lands, San Luis Project, Los Banos, California

Science.gov (United States)

2011-06-08

... facilitating environmentally appropriate renewable-energy projects involving solar, wind and waves, geothermal... Federal Lands, San Luis Project, Los Banos, California AGENCY: Bureau of Reclamation, Interior. ACTION... energy project(s) in a lease arrangement on existing Reclamation lands in the vicinity of the San Luis...

77 FR 21797 - Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Ventura, Kern, San Luis...

Science.gov (United States)

2012-04-11

... DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-R-2011-N253: FXRS12650800000S3-112-FF08R00000] Hopper Mountain, Bitter Creek, and Blue Ridge National Wildlife Refuges, Ventura, Kern, San Luis... acres, primarily in Kern County and extending into San Luis Obispo and Ventura Counties. Blue Ridge NWR...

Commercial production of ethanol in the San Luis Valley, Colorado. Final report

Energy Technology Data Exchange (ETDEWEB)

Hewlett, E.M.; Erickson, M.V.; Ferguson, C.D.; Boswell, B.S.; Walter, K.M.; Hart, M.L.; Sherwood, P.B.

1983-07-01

The commercial feasibility of producing between 76 and 189 million liters (20 to 50 million gallons) of ethanol annually in the San Luis Valley, Colorado using geothermal energy as the primary heat source was assessed. The San Luis Valley is located in south-central Colorado. The valley is a high basin situated approximately 2316 meters (7600 feet) above sea level which contains numerous warm water wells and springs. A known geothermal resource area (IGRA) is located in the east-central area of the valley. The main industry in the valley is agriculture, while the main industry in the surrounding mountains is lumber. Both of these industries can provide feedstocks for the production of ethanol.

José Luis Hidalgo, poeta de los muertos

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Román GARCÍA-CAMINO MATEOS

2009-11-01

Full Text Available RESUMEN: La figura de José Luis Hidalgo (Torres, 1919-Madrid, 1947, poeta y pintor, ha de tomar un nuevo relieve como representante de una generación de autores montañeses que surgió en torno a los años cuarenta. Destaca en su breve obra, al igual que su corta pero intensa vida, la extrema sensibilidad de su poesía en el uso de imágenes, metáforas que acercan sus versos hacia el terreno de lo plástico y sensorial. Las preocupaciones son de profunda raigambre existencialista, al ser nuestro poeta un joven lector de pensadores como Nietzsche, Schopenhauer o Unamuno; es con este último con el que guarda una ineludible afinidad de ideas. La búsqueda que emprende José Luis Hidalgo hacia la verdad se sitúa dentro de una metafísica trascendente y una vertiente religiosa muy significativa, en un diálogo sincero y directo con Dios. Contrasta la sencillez formal de su poesía con el complejo sistema simbólico de elementos naturales, espacios... en los que se mueve dentro del marco fluctuante entre la tradición y la vanguardia; encontramos resonancias que nos llevan desde el romanticismo becqueriano, pasando por el simbolismo, hasta los movimientos vanguardistas —sobre todo el surrealismo— y el grupo poético del 27. La obra de Los muertos supone un momento culmen del dilatado periodo de posguerra.ABSTRACT: The literary figure of José Luis Hidalgo (Torres, 1919-Madrid, 1947, both a poet and a painter, achieves renown once more as a representative of a generation of writers from Cantabria (in the north of Spain which came to light around the 1940's. His work, as brief as his short but intense life, is remarkable for the great feeling of his poetry in the use of imagery and metaphors, which draw his verse near the domain of the vivid and sensorial. His concerns have deep existentialist roots; as a young man the poet was a devoted reader of great thinkers such as Nietzsche, Schopenhauer or Unamuno; it is the latter with whom he has an

Pionero de la comunicación (Entrevista a Luis Ramiro Beltrán

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Juan Braun

2015-01-01

Full Text Available Luis Ramiro es, sin lugar a dudas, el comunicador más reconocido de la América Latina. Sus ideas circulan libremente en el Norte y en el Sur. Es un líder. Pero pocos saben de su vida. Los esfuerzos que tuvo que hacer para "llegar". De sus primeros años de periodista bohemio, su lucha en la Universidad del Estado de Michigan para sobrevivir a las exigencias de Berlo, Kumata, Rogers y Miller. Y la importancia fundamental en todo esto de su madre, Mama Becha. Nos conocimos allá lejos, en Michigan. Luis Ramiro se graduaba de Doctor, terminaba su "vía crucis". El mío apenas comenzaba. Las ideas de Luis, su diagnóstico de la comunicación en América Latina, tuvieron un profundo impacto en mí que se hizo sentir años después. ¡Gracias! ¡y también alcancé a probar las empanadas de Mama Becha! El Dr. Beltrán habla sobre su vida y el pasado, presente y futuro de la comunicación en América Latina.

Implementation en VHDl/FPGA d'afficheur video numerique (AVN) pour des applications aerospatiales

Science.gov (United States)

Pelletier, Sebastien

L'objectif de ce projet est de developper un controleur video en langage VHDL afin de remplacer la composante specialisee presentement utilisee chez CMC Electronique. Une recherche approfondie des tendances et de ce qui se fait actuellement dans le domaine des controleurs video est effectuee afin de definir les specifications du systeme. Les techniques d'entreposage et d'affichage des images sont expliquees afin de mener ce projet a terme. Le nouveau controleur est developpe sur une plateforme electronique possedant un FPGA, un port VGA et de la memoire pour emmagasiner les donnees. Il est programmable et prend peu d'espace dans un FPGA, ce qui lui permet de s'inserer dans n'importe quelle nouvelle technologie de masse a faible cout. Il s'adapte rapidement a toutes les resolutions d'affichage puisqu'il est modulaire et configurable. A court terme, ce projet permettra un controle ameliore des specifications et des normes de qualite liees aux contraintes de l'avionique.

76 FR 45602 - Proposed Safe Harbor Agreement for California Red-Legged Frog, at Swallow Creek Ranch, San Luis...

Science.gov (United States)

2011-07-29

... DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-ES-2011-N144; 81440-1113-0000-F3] Proposed Safe Harbor Agreement for California Red-Legged Frog, at Swallow Creek Ranch, San Luis Obispo... Ranch in San Luis Obispo County, California. Within the 620 acres of land comprising the Enrolled...

Distribución del ocelote (Leopardus pardalis en San Luis Potosí, México Distribution of the ocelot (Leopardus pardalis in San Luis Potosí, Mexico

Directory of Open Access Journals (Sweden)

Jesús Manuel Martínez-Calderas

2011-09-01

Full Text Available Para definir la distribución geográfica del ocelote en el estado de San Luis Potosí, México, se obtuvieron nuevos registros de la especie. El estudio se realizó de enero de 2007 a abril de 2009. Se obtuvieron 41 registros de ocelotes por medio de entrevistas y trampeo-fotográfico. Los registros se localizaron en comunidades vegetales de selva baja caducifolia (37%, matorral submontano (22%, bosque de encino (15%, selva mediana (10%, selva alta perennifolia, bosque mesófilo de montaña, bosque de pino-encino y matorral desértico micrófilo (10%. La presencia de ocelotes se ubicó en los municipios de Ciudad del Maíz, El Naranjo, Cerritos, Guadalcázar, San Nicolás Tolentino y Ciudad Valles en de elevaciones de 38 a 2 400 m snm. Los resultados de esta investigación sugieren una distribución del ocelote más hacia el oeste del estado respecto a su distribución original. El presente estudio definió nuevas regiones con presencia de ocelotes que pueden ser consideradas en el desarrollo de estrategias de conservación de la especie en el estado de San Luis Potosí.To determine the geographic distribution of ocelot in the state of San Luis Potosí, Mexico, we obtained new records. The study was conducted from January 2007 to April 2009. We recorded 41 ocelot records by interviews and camera-trapping. Ocelots records were located in tropical deciduous forest (37%, semitropical thornscrub (22%, oak forest (15%, tropical forest (10%, tall tropical deciduous forest, desert scrub, pine-oak forest and clouded forest (10%. Ocelot records were located in the municipalities of Ciudad del Maíz, El Naranjo, Cerritos, Guadalcazar, San Nicolás Tolentino and Ciudad Valles where the elevation ranged from 38 to 2 400 m. The evidence of this research suggests that ocelot range is more extended to the west than its original geographical range. This study defined new regions with presence of ocelots that may be considered to develop conservation strategies

Commercial production of ethanol in the San Luis Valley, Colorado. Final Report

Energy Technology Data Exchange (ETDEWEB)

Hewlett, E.M.; Erickson, M.V.; Ferguson, C.D.; Sherwood, P.B.; Boswell, B.S.; Walter, K.M.; Hart, M.L.

1983-07-01

The purpose of this study is to assess the commercial feasibility of producing between 76 and 189 million liters (20 and 50 million gallons) of ethanol annually in the San Luis Valley, Colorado using geothermal energy as the primary heat source. The San Luis Valley is located in south-central Colorado. The valley is a high basin situated approximately 2316 meters (7600 feet) above sea level which contains numerous warm water wells and springs. A known geothermal resource area (KGRA) is located in the east-central area of the valley. The main industry in the valley is agriculture, while the main industry in the surrounding mountains is lumber. Both of these industries can provide feedstock for the production of ethanol.

Chasing Personal Meaning: Pedagogical Lessons through Luis Rodriguez's "Always Running"

Science.gov (United States)

Theisen-Homer, Victoria

2014-01-01

In this autobiographical narrative, the author recounts her experiences teaching the novel "Always Running" by Luis Rodriguez with her English classes at a high school in a gang-heavy area. When she first started teaching, this teacher struggled to engage students. One particularly disruptive student requested to read "Always…

Video Simulations to Develop Preservice Mathematics Teachers' Discourse Practices

Science.gov (United States)

Amador, Julie M.

2018-01-01

The incorporation of video technology in teacher education programmes is increasingly prevalent, with teacher educators commonly using three traditional forms of videos: published video, preservice teachers' own videos and colleagues' videos. This study explored a fourth type of video, self-created scripted video simulations in which preservice…

Luis Patiño Camargo Maestro, Investigador, Humanista

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José Felix Patiño Restrepo

1992-09-01

Full Text Available

Palabras del doctor José Félix Patiño Restrepo, Académico de Número, con motivo de la Sesión Solemne de la Academia Nacional de Medicina para conmemorar el centenario del natalicio del Profesor Luis Patiño Camargo.

Santafé de Bogotá, noviembre 21 de 1991

Son varias las semblanzas que distinguidas personalidades de Colombia y del exterior han escrito sobre el Profesor Luis Patiño Camargo, cuya vida ejemplar dejó honda huella en la medicina y la ciencia colombianas: Carlos Lleras Restrepo y Juan Lozano y Lozano en 1978; Augusto Gast Galvis, Fernando Serpa Flórez y Alfonso Jaram illo Salazar en 1979; Eduardo Guzmán Esponda, Remando Groot y José Francisco Socarrás en 1981; Amador Neghme, de Chile en 1987; Ernesto Andradc Valderrama en 1988, y ahora Carlos Sanmartín Barberi.

“Bella vida y bella muerte la de Luis Patiño Camargo, pensaba yo cuando iba caminando detrás del féretro, después de los sencillos oficios en la iglesia de Iza, hacia el cementerio campesino donde él dispuso que se enterrara en medio de las tumbas de sus padres y debajo de los pinos que plantó con su propia mano”. Así inició Carlos Lleras Restrepo un sentido artículo sobre Patiño Camargo publicado en la Nueva Frontera a los pocos días de su muerte, acaecida en Sogamoso el 13 de noviembre de 1978. Porque ese fue su deseo: reposar para siempre en el cementerio que domina su bello pueblo andino, Iza, donde había nacido el 24 de noviembre de 1891.

Dijo Gast Galvis: “El Dr. Patiño, como el cacique de Inza, después de mucho peregrinar por todo el territorio colombiano, encontró un lugar de brisas tibias, cielo siempre azul, abundantes aguas, suelo fértil, en donde se pudiera vivir y morir en paz”.

Científico, maestro, médico, naturalista, filósofo, humanista, todo eso fue Luis Patiño Camargo, y ninguno de estos términos lo caracteriza de por sí, sino más bien el conjunto de ellos

Geology and petrography of the Socoscora Sierra . Province of San Luis. Republica Argentina

International Nuclear Information System (INIS)

Carugno Duran, A.

1998-01-01

The following paper include an study geological and petrographic of the Sierra de Socoscora. San Luis, Argentina. This mountainas is a block with less elevation that the Sierra de San Luis, and it located in the west center of it. It' s formed by an crystalline basement composed by metamorphic haigh grade rocks, with a penetrative foliation of strike N-S. in this context is possible to define petrographicly the following units, migmatitic that fill a big part of the mountain, amphibolites, marbles, skarns, milonites and pegmatites. This units have amphibolitic facies assemblanges mineral and in some them, we can observe retrograde metamorphism of the greesnschist facies. The metamorphic structure is complex and evidence at least three deformation event

Social Integration and Health Behavioral Change in San Luis, Honduras

Science.gov (United States)

McQuestion, Michael J.; Calle, Ana Quijano; Drasbek, Christopher; Harkins, Thomas; Sagastume, Lourdes J.

2010-01-01

This study explores the effects of social integration on behavioral change in the course of an intensive, community-based public health intervention. The intervention trained volunteers and mobilized local organizations to promote 16 key family health practices in rural San Luis, Honduras, during 2004 to 2006. A mixed methods approach is used.…

Expansão espacial da leishmaniose visceral americana em São Luis, Maranhão, Brasil Space expansion of the American visceral leishmaniasis in São Luis, Maranhão, Brazil

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Wellington da Silva Mendes

2002-06-01

Full Text Available Descreve-se a ocupação espacial no município de São Luis e a expansão da leishmaniose visceral americana(LVA na mesma. Foram analisadas as fichas de registro de atendimento de casos de leishmaniose visceral da Diretoria Regional da Fundação Nacional de Saúde do Maranhão no período de setembro de 1982 a dezembro de 1996, assim como documentos oficiais sobre a ocupação espacial do município. Foi observado que os casos de LVA ao longo da evolução da epidemia em São Luis apresentaram distribuição espacial e concentração semelhantes a apresentada pelo fluxo migratório na cidade no mesmo período.The space occupation and the expansion of American visceral leishmaniasis (AVL were described in the municipality of São Luis, Maranhão, Northeast Brazil. AVL medical notes from the Fundação Nacional de Saúde as well as official documents about the space occupation were analyzed from September 1982 to December 1996. AVL cases were more likely to occur in recently settled suburbs and tended to follow the same spatial pattern observed for land occupations secondary to migratory fluxes.

Reflections on academic video

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Thommy Eriksson

2012-11-01

Full Text Available As academics we study, research and teach audiovisual media, yet rarely disseminate and mediate through it. Today, developments in production technologies have enabled academic researchers to create videos and mediate audiovisually. In academia it is taken for granted that everyone can write a text. Is it now time to assume that everyone can make a video essay? Using the online journal of academic videos Audiovisual Thinking and the videos published in it as a case study, this article seeks to reflect on the emergence and legacy of academic audiovisual dissemination. Anchoring academic video and audiovisual dissemination of knowledge in two critical traditions, documentary theory and semiotics, we will argue that academic video is in fact already present in a variety of academic disciplines, and that academic audiovisual essays are bringing trends and developments that have long been part of academic discourse to their logical conclusion.

75 FR 61101 - Closed Captioning of Video Programming

Science.gov (United States)

2010-10-04

... Captioning of Video Programming AGENCY: Federal Communications Commission. ACTION: Final rule; waiver of... (Bureau), waives in part the requirement that video programming distributors (VPDs) place contact... (2), published at 74 FR 1594, January 13, 2009, requiring video programming distributors to place...

Doctor Ramón Luis Miranda Torres, su relación con las neurociencias

OpenAIRE

Hodelín Tablada,Ricardo

2005-01-01

Objetivo: en el presente trabajo se reseña la relación del doctor Ramón Luis Miranda con las neurociencias, dirigido a destacar su inclinación por estas disciplinas. Desarrollo: conocido en la historiografía médica como el médico de José Martí el apóstol cubano el doctor Ramón Luis Miranda Torres, se destacó en otros aspectos poco divulgados, por lo que opinamos que no se le ha otorgado su verdadera dimensión. Nacido en la ciudad de Matanzas, Cuba, estudió medicina en Francia y desde sus años...

Moessbauer, TEM/SAED and XRD investigation on waste dumps of the Valea lui Stan gold mines

Energy Technology Data Exchange (ETDEWEB)

Constantinescu, Serban Grigore, E-mail: sconst@infim.ro [National Institute of Materials Physics, Bucharest-Magurele (Romania); Udubasa, Sorin S.; Udubasa, Gheorghe [University of Bucharest, Fac. of Geology and Geophysics (Romania); Kuncser, Victor; Popescu-Pogrion, Nicoleta; Mercioniu, Ionel; Feder, Marcel [National Institute of Materials Physics, Bucharest-Magurele (Romania)

2012-03-15

The complementary investigation techniques, Moessbauer spectroscopy, transmission electron microscopy with selected area electron diffraction (TEM/SAED), X-ray diffraction (XRD) have been used to investigate the fate of the Valea lui Stan, Romania, gold-ore nanoscale-minerals during the long time of residence in the waste dumps. The preliminary investigations showed such waste dumps to contain significant amount of metals which cannot be identified by conventional methods. An intense research activity started up in order to evaluate the possibilities to recycle Valea lui Stan waste dumps and to recover metals by chemical or phytoextraction procedures. The waste dumps naturally show different mineral constituents with clay minerals as major phases, observed by XRD-technique. Although the waste dumps materials have whitish-yellowish colours, MOeSSBAUER technique evidences the presence of the finely dispersed iron bearing minerals. The authors are focusing to inspect and analyze Fe-compounds in the samples collected from Valea lui Stan's waste dumps in order to identify the magnetic phases by Moessbauer technique.

Neuroimaging Features of San Luis Valley Syndrome

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Matthew T. Whitehead

2015-01-01

Full Text Available A 14-month-old Hispanic female with a history of double-outlet right ventricle and developmental delay in the setting of recombinant chromosome 8 syndrome was referred for neurologic imaging. Brain MR revealed multiple abnormalities primarily affecting midline structures, including commissural dysgenesis, vermian and brainstem hypoplasia/dysplasia, an interhypothalamic adhesion, and an epidermoid between the frontal lobes that enlarged over time. Spine MR demonstrated hypoplastic C1 and C2 posterior elements, scoliosis, and a borderline low conus medullaris position. Presented herein is the first illustration of neuroimaging findings from a patient with San Luis Valley syndrome.

Luis Alcoriza o la mexicanización del exiliado cinematográfico republicano = Luis Alcoriza or the Mexican Nationalization of the Republican Cinematography Exile

Directory of Open Access Journals (Sweden)

Jorge Chaumel Fernández

2016-03-01

Full Text Available Luis Alcoriza,  exiliado republicano español en México, desarrolló su carrera como  actor, guionista y director en su patria de adopción dándola algunas de sus mejores películas. En su condición de exiliado dispuso de mayor objetividad para mostrar los cambios de la sociedad mexicana y de sus principales problemas políticos. Figura imprescindible de la evolución del Cine Mexicano  de  la segunda mitad del siglo XX, se configura como uno de los principales ejemplos del  fenómeno de mexicanización de los cineastas exiliados.Luis Alcoriza, Spanish republican exile in Mexico, developed his career as an actor, writer and director in his adopted country giving her some of his best films. In his exile he had before as objective to show the changes in Mexican society and its major political problems. Essential figure in the evolution of Mexican cinema in the second half of the twentieth century stands as one of the prime examples of the phenomenon of mexicanización of exiled filmmakers.

Future Drinking Water Supply, Spatial Analysis and Vulnerability of the City of San Luis Potosi, Mexico

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Carlos Contreras Servín

2008-01-01

Full Text Available This paper discusses and presents the physical, social and economic circumstances that affect the overall picture and the current issues that involve the drinking water supply for the metropolitan area of San Luis Potosi. The relationship between water availability and increasing population, as well as the evolution of the groundwater extraction, are among the topics addressed here. Additionally, this research shows a diagnosis of the current situation of the drinking water supply in San Luis Potosi and the surrounding areas, as well as the likely scenario in the near future.

Airborne electromagnetic and magnetic survey data of the Paradox and San Luis Valleys, Colorado

Science.gov (United States)

Ball, Lyndsay B.; Bloss, Benjamin R.; Bedrosian, Paul A.; Grauch, V.J.S.; Smith, Bruce D.

2015-01-01

In October 2011, the U.S. Geological Survey (USGS) contracted airborne magnetic and electromagnetic surveys of the Paradox and San Luis Valleys in southern Colorado, United States. These airborne geophysical surveys provide high-resolution and spatially comprehensive datasets characterizing the resistivity structure of the shallow subsurface of each survey region, accompanied by magnetic-field information over matching areas. These data were collected to provide insight into the distribution of groundwater brine in the Paradox Valley, the extent of clay aquitards in the San Luis Valley, and to improve our understanding of the geologic framework for both regions. This report describes these contracted surveys and releases digital data supplied under contract to the USGS.

Luis Buñuel: trascendiendo el tópico

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Dr. Manuel Carlos Fernández Sánchez

2001-01-01

Full Text Available En 1900 nace el cineasta Luis Buñuel en Calanda, Aragón. En el año 2000 se celebró en distintos ámbitos cinematográficos y televisivos de todo el mundo el centenario de su nacimiento. Festivales de cine, cadenas de televisión por satélite u onda hertziana, periódicos y revistas se hacen eco de la enorme trascendencia del lenguaje cinematográfico buñueliano. Este estudio sobre la última de sus películas rodada en Andalucía, concretamente en Sevilla, pretende aportar un nuevo análisis sobre esta obra que trascendió el tópico andaluz.ABSTRACIn 1900 the film director Luis Buñuel is born in Calanda, Aragón. In 2000, it took place the centennial of his birth in different film and television environments in all over the world. The transcendency of film languaje used by Buñuel has been anlysed in cinema festivals, television, newspapers and magazines. This study, focus on his last movies filmed in Andalusia, concretely in Seville, it seeks to contribute with a new analysis on this work that transcended the Andalusian topic.

Theoretical investigations on the high light yield of the LuI3:Ce scintillator

International Nuclear Information System (INIS)

Vasil'ev, A.N.; Iskandarova, I.M.; Scherbinin, A.V.; Markov, I.A.; Bagatur'yants, A.A.; Potapkin, B.V.; Srivastava, A.M.; Vartuli, J.S.; Duclos, S.J.

2009-01-01

The extremely high scintillation efficiency of lutetium iodide doped by cerium is explained as a result of at least three factors controlling the energy transfer from the host matrix to activator. We propose and theoretically validate the possibility of a new channel of energy transfer to excitons and directly to cerium, namely the Auger process when Lu 4f hole relaxes to the valence band hole with simultaneous creation of additional exciton or excitation of cerium. This process should be efficient in LuI 3 , and inefficient in LuCl 3 . To justify this channel, we perform calculations of density of states using a periodic plane-wave density functional approach. The second factor is the increase of the efficiency of valence hole capture by cerium in the row LuCl 3 -LuBr 3 -LuI 3 . The third one is the increase of the efficiency of energy transfer from self-trapped excitons to cerium ions in the same row. The latter two factors are verified by cluster ab initio calculations. We estimate either the relaxation of these excitations and barriers for the diffusion of self-trapped holes (STH) and self-trapped exciton (STE). The performed estimations theoretically justify the high LuI 3 :Ce 3+ scintillator yield.

Exposiciones: Capuleto en la sala "Luis Ángel Arango"

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Arístides Meneghetti

1958-07-01

Full Text Available La exposición del joven pintor español Francisco Capuleto, realizada en la Biblioteca "Luis Ángel Arango" el pasado mes de mayo, refresca un viejo problema en la conciencia de todo americano. Existen dos Españas diferentes, la una folclórica, de aire flamenco, majas y alegres panderetas, creada para la exportación y el turismo, a que son tan afectas las personas.

Web Audio/Video Streaming Tool

Science.gov (United States)

Guruvadoo, Eranna K.

2003-01-01

In order to promote NASA-wide educational outreach program to educate and inform the public of space exploration, NASA, at Kennedy Space Center, is seeking efficient ways to add more contents to the web by streaming audio/video files. This project proposes a high level overview of a framework for the creation, management, and scheduling of audio/video assets over the web. To support short-term goals, the prototype of a web-based tool is designed and demonstrated to automate the process of streaming audio/video files. The tool provides web-enabled users interfaces to manage video assets, create publishable schedules of video assets for streaming, and schedule the streaming events. These operations are performed on user-defined and system-derived metadata of audio/video assets stored in a relational database while the assets reside on separate repository. The prototype tool is designed using ColdFusion 5.0.

Eric Bach : ilustrador de Luis de Góngora

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María Dolores Antigüedad del Castillo Olivares

1991-01-01

Full Text Available El pintor holandés Eric Bach [Eríurt (Alemania 1911] ha mostrado durante el año 1991 sus obras como ilustrador en sendas exposiciones celebradas en Córdoba y Madrid. El artista que reside indistintamente en Munich y Barcelona, expuso las ilustraciones que ha realizado para la edición en alemán de Los veinticuatro sonetos amorosos, heroicos y fúnebres de don Luis de Góngora, edición hecha por encargo del Sr. Rüdiger Kampmann de Munich.

Late Miocene-Pleistocene evolution of a Rio Grande rift subbasin, Sunshine Valley-Costilla Plain, San Luis Basin, New Mexico and Colorado

Science.gov (United States)

Ruleman, C.A.; Thompson, R.A.; Shroba, R.R.; Anderson, M.; Drenth, B.J.; Rotzien, J.; Lyon, J.

2013-01-01

The Sunshine Valley-Costilla Plain, a structural subbasin of the greater San Luis Basin of the northern Rio Grande rift, is bounded to the north and south by the San Luis Hills and the Red River fault zone, respectively. Surficial mapping, neotectonic investigations, geochronology, and geophysics demonstrate that the structural, volcanic, and geomorphic evolution of the basin involves the intermingling of climatic cycles and spatially and temporally varying tectonic activity of the Rio Grande rift system. Tectonic activity has transferred between range-bounding and intrabasin faults creating relict landforms of higher tectonic-activity rates along the mountain-piedmont junction. Pliocene–Pleistocene average long-term slip rates along the southern Sangre de Cristo fault zone range between 0.1 and 0.2 mm/year with late Pleistocene slip rates approximately half (0.06 mm/year) of the longer Quaternary slip rate. During the late Pleistocene, climatic influences have been dominant over tectonic influences on mountain-front geomorphic processes. Geomorphic evidence suggests that this once-closed subbasin was integrated into the Rio Grande prior to the integration of the once-closed northern San Luis Basin, north of the San Luis Hills, Colorado; however, deep canyon incision, north of the Red River and south of the San Luis Hills, initiated relatively coeval to the integration of the northern San Luis Basin.Long-term projections of slip rates applied to a 1.6 km basin depth defined from geophysical modeling suggests that rifting initiated within this subbasin between 20 and 10 Ma. Geologic mapping and geophysical interpretations reveal a complex network of northwest-, northeast-, and north-south–trending faults. Northwest- and northeast-trending faults show dual polarity and are crosscut by north-south– trending faults. This structural model possibly provides an analog for how some intracontinental rift structures evolve through time.

Improving Learning Outcomes in Office Automation Subjects Through Development of Video-Based Media Learning Operating Microsoft Publisher 2010

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Irma Mastumasari

2017-07-01

Full Text Available The purpose of this research is to produce instructional media video-based operate Microsoft Publisher 2010 which is validated by experts for student at class X of Office Administration in SMKN 1 Malang through experimental class and control class. This study uses Research and Development research design (R & D through 8 steps, namely: (1 research and information gathering early, (2 planning, (3 product development, (4 validation expert, (5 product revision, (6 the trial court (small groups, (7 the revision of the product, and (8 field trials (large group. Results of validation by material experts, media experts and 12 students, the media is expressed very valid and can be used. Based on t test, it is known that a significant difference between the average student learning outcomes experimental class and control class, so that learning media can be said to be effective for use in the learning process.

REPRESENTASI HOMOSEKSUALITAS DI YOUTUBE: (Studi Semiotika pada Video Pernikahan Sam Tsui

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Lilis Rucirisyanti

2017-12-01

Full Text Available Abstract. Social media is instrumental in giving effect to nitizens, good effects or bad effect, then social media can be also represent a person. Diserve social media make it interesting for nitizens. One of social media is Youtube. Many a lot of video at there, strat from tips and trick videos, journey or vacation video, wedding video, and ect. Everyone can publish their video on Youtube. No exception of same sex enthusiast, in this study are homosexual or gay. One of is a wedding video Sam Tsui and Casey Braves. This research is a qualitative research and this research uses semiotcs analysus of Roland Barthes. By doing an analysis of video that have been published by Sam on Youtube, also do document search and literature. The author sees the existence of verbal and non vebal forms of representation from same sex merriage video of men and men.

Luis José de Tejada y Guzmán : espejo de peregrinos penitentes

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Darío Achury Valenzuela

1979-03-01

Full Text Available Graciela Maturo, docta escritora argentina, ha escrito un estudio documentado y erudito bajo el rubro de Luis de Tejada y su peregrino místico, editado por el Instituto de Literatura Argentina "Ricardo Rojas", de la Universidad de Buenos Aires.

Escrituras, hurtos y reelaboraciones de Luis Hurtado de Toledo (1523-1590): edición de su obra literaria y estudio de su obra impresa

OpenAIRE

Gamba Corradine, Jimena

2014-01-01

[ES] La tesis doctoral «Escrituras, hurtos y reelaboraciones de Luis Hurtado de Toledo (1523-1590): edición de su obra literaria y estudio de su obra impresa» consiste en la edición de una parte del corpus literario adjudicado a Luis Hurtado de Toledo. Se editan aquí, con notas al texto, los romances en pliego resguardados en RM 259 + [260] (Romance de las notables cosas que tiene la imperial ciudad de Toledo), RM 261 + [261] y 263 (Romance nuevamente hecho por Luis Hurtado, en el qual se co...

“Y SAN LUIS OBEDIENTE RESPONDÍA” LOS TERRATENIENTES DE LA CIUDAD DE SAN LUIS Y EL PLAN SANMARTINIANO (1814 - 1829

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Melody Celeste Vera

2015-12-01

Full Text Available La base fundamental de la identidad de los habitantes de la provincia de San Luis (Argentina y de su historiografía, es el axioma que el pueblo puntano se inmoló por el proyecto sanmartiniano. El Gobernador Intendente Vicente Dupuy (1814-1820 fue el principal colaborador de José de San Martin en la provincia, y el coordinador de las donaciones de bienes y vidas para la causa. Contaba con el apoyo del “cabildo sanmartiniano”, un grupo de vecinos que secundaban sus ideales, apoyaban sus iniciativas y colaboraban materialmente. Pero luego de la caída del gobierno central en 1820 no se ofrece una interpretación sobre el cambio de proyecto político que representó el nuevo Gobernador, José Santos Ortiz (1820-1829. Si se consideran conjuntamente las oposiciones de un grupo de vecinos levantadas durante el gobierno de Dupuy y el accionar de Santos Ortiz durante su mandato, cabe preguntarse: ¿los cabildantes terratenientes apoyaron la gesta sanmartiniana por convicción, o se vieron forzados a hacerlo por la imposición de un grupo en el poder? ¿Representó Santos Ortiz el proyecto de lo que el grupo terrateniente buscaba y no pudo obtener mientras se llevaba delante el plan sanmartiniano? En este trabajo se busca comparar los objetivos primarios de ambos gobernadores durante sus mandatos, con el fin de vislumbrar cuál de los planes de gobierno representaba los ideales y necesidades de los grandes terratenientes de la ciudad de San Luis.

BMC Medicine editorial board members on open access publishing.

Science.gov (United States)

Carmont, Michael R; Lawn, Stephen D; Stray-Pedersen, Babill; Shoenfeld, Yehuda; Meier, Pascal

2014-01-21

In recognition of Open Access week (21st-27th October 2013), we asked some BMC Medicine Editorial Board Members to share their views and experiences on open access publishing. In this short video, they highlight the benefits of visibility and dissemination of their research, and discuss the future directions for this model of publishing.

Research on group enterprise multimedia information publishing system

Directory of Open Access Journals (Sweden)

Zhimin Dong

2017-01-01

Full Text Available A electric power group enterprises to actively explore the innovation of enterprise culture management, making full use of modern information and communication technologies, construction of trans-regional multimedia information publishing platform. Construction of a municipal pilot units in Group region, for example, through consolidation, Office LANs, corporate networks in electric power communication network, cable TV network, realized with pictures, video, PPT, FLASH animations, WORD documents, WEB pages, video conference streams, radio, television, and other media as the carrier’s digital communications.

Provencance of the late Proterozoic to early Cambrian metaclastic sediments ot the Sierra de San Luis (Eastern Sierras Pampeanas) and Cordillera Oriental, Argentina

DEFF Research Database (Denmark)

Drobe, M.; López de Luchi, M.; Steenken, A.

2009-01-01

Provenance studies have been performed utilising major and trace elements, Nd systematics, whole rock Pb-Pb isotopes and zircon U/Pb SHRIMP data on metasedimentary rocks of the Sierra de San Luis (Nogolí Metamorphic Complex, Pringles Metamorphic Complex, Conlara Metamorphic Complex and San Luis...... is depicted for all the complexes using major and trace elements. The Pringles Metamorphic Complex shows indications for crustal recycling, pointing to a bimodal provenance. Major volcanic input has to be rejected due to Th/Sc, Y/Ni and Cr/V ratios for all units. The eNd(540 Ma) data is lower for the San Luis...... Formation and higher for the Conlara Metamorphic Complex, as compared to the other units, in which a good consistency is given. This is similar to the TDM ages, where the metapsammitic samples of the San Luis Formation are slightly older. The spread of data is largest for the Pringles Metamorphic Complex...

Portrayal of tobacco in Mongolian language YouTube videos: policy gaps.

Science.gov (United States)

Tsai, Feng-Jen; Sainbayar, Bolor

2016-07-01

This study examined how effectively current policy measures control depictions of tobacco in Mongolian language YouTube videos. A search of YouTube videos using the Mongolian term for 'tobacco', and employing 'relevance' and 'view count' criteria, resulted in a total sample of 120 videos, from which 38 unique videos were coded and analysed. Most videos were antismoking public service announcements; however, analyses of viewing patterns showed that pro-smoking videos accounted for about two-thirds of all views. Pro-smoking videos were also perceived more positively and had a like:dislike ratio of 4.6 compared with 3.5 and 1.5, respectively, for the magic trick and antismoking videos. Although Mongolia prohibits tobacco advertising, 3 of the pro-smoking videos were made by a tobacco company; additionally, 1 pro-smoking video promoted electronic cigarettes. Given the popularity of Mongolian YouTube videos that promote smoking, policy changes are urgently required to control this medium, and more effectively protect youth and young adults from insidious tobacco marketing. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

Luis Ramiro Beltrán: Semblanza de un comunicador vanguardista

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Alfonso Gumucio Dagron

2009-03-01

Full Text Available Luis Ramiro Beltrán es un "WAKIKI" investigador de seriedad académica reconocida, pensador que ha dado un aporte significativo a los estudios sobre la comunicación para el desarrollo en América Latina son frases de Alfonso Gumucio al hacer una semblanza de Beltrán en la que destaca su generosidad, apertura tolerancia y colaboración, amigo fiel, constante e incondicional y su creatividad.

Syntactically Silent Subjects: Luis Muñoz and the Poetry of Ellipsis

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Judith Nantell

2012-06-01

Full Text Available Luis Muñoz (1966 is one of contemporary Spain’s most salient poets. His work has been described as demonstrating a discourse of ellipsis; yet no study has examined in detail his masterful use of syntactic and figurative omission. In fact, even though Muñoz’s published collections to date span two centuries, no single study has been devoted to his decidedly innovative expressivity. His work has been commented on in various panoramic essays considering contemporary poetry published in Spain at this temporal intersection and a number of his poems have been gathered into noteworthy anthologies of this same era. His poetry has been nominated for prestigious awards in Spain and in 2001 Correspondencias ‘Correspondences’ received the fourth Premio Internacional de Poesía del 27 as well as the Premio de Ojo Crítico de Poesía . The present study examines Muñoz’s most recent Querido silencio (2006 ‘Dear Silence’ where ellipsis figures prominently as the poet maximizes and exploits conceptual and linguistic efficiency. In one exemplary poem, “Dejar la poesía” ‘Leave Poetry,’ two syntactically silent subjects engage in an innovative conversation concerning the nature of poetry. At the same time this intriguing dialogue also offers a unique response to the essential question framing this poem and the collection as a whole: Why is poetry an addiction?

Smoking in Video Games: A Systematic Review.

Science.gov (United States)

Forsyth, Susan R; Malone, Ruth E

2016-06-01

Video games are played by a majority of adolescents, yet little is known about whether and how video games are associated with smoking behavior and attitudes. This systematic review examines research on the relationship between video games and smoking. We searched MEDLINE, psycINFO, and Web of Science through August 20, 2014. Twenty-four studies met inclusion criteria. Studies were synthesized qualitatively in four domains: the prevalence and incidence of smoking imagery in video games (n = 6), video game playing and smoking behavior (n = 11), video game addiction and tobacco addiction (n = 5) and genre-specific game playing and smoking behavior (n = 3). Tobacco content was present in a subset of video games. The literature is inconclusive as to whether exposure to video games as a single construct is associated with smoking behavior. Four of five studies found an association between video game addiction and smoking. For genre-specific game playing, studies suggest that the type of game played affected association with smoking behavior. Research on how playing video games influences adolescents' perceptions of smoking and smoking behaviors is still in its nascence. Further research is needed to understand how adolescents respond to viewing and manipulating tobacco imagery, and whether engaging in game smoking translates into changes in real-world attitudes or behavior. Smoking imagery in video games may contribute to normalizing adolescent smoking. A large body of research has shown that smoking imagery in a variety of media types contributes to adolescent smoking uptake and the normalization of smoking behavior, and almost 90% of adolescents play video games, yet there has never been a published systematic review of the literature on this important topic. This is the first systematic review to examine the research on tobacco and video games.We found that tobacco imagery is indeed present in video games, the relationship between video game playing and smoking

De la BLAA: Exposición en la Biblioteca Luis Angel Arango

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Juan Camilo Sierra

2001-01-01

Full Text Available Hasta febrero de 2003 la Biblioteca Luis Ángel Arango exhibirá una de las muestras más representativas del arte religioso internacional: 500 años de arte ruso. Iconos de la Galería Tretyakof de Moscú. Publicamos algunos apartes del plegable que acompaña la muestra.

The definitive guide to HTML 5 video

CERN Document Server

Pfeiffer, Silvia

2010-01-01

Plugins will soon be a thing of the past. The Definitive Guide to HTML5 Video is the first authoritative book on HTML5 video, the new web standard that allows browsers to support audio and video elements natively. This makes it very easy for web developers to publish audio and video, integrating both within the general presentation of web pages. For example, media elements can be styled using CSS (style sheets), integrated into SVG (scalable vector graphics), and manipulated in a Canvas. The book offers techniques for providing accessibility to media elements, enabling consistent handling of a

Transient electromagnetic mapping of clay units in the San Luis Valley, Colorado

Science.gov (United States)

Fitterman, David V.; Grauch, V.J.S.

2010-01-01

Transient electromagnetic soundings were used to obtain information needed to refine hydrologic models of the San Luis Valley, Colorado. The soundings were able to map an aquitard called the blue clay that separates an unconfined surface aquifer from a deeper confined aquifer. The blue clay forms a conductor with an average resistivity of 6.9 ohm‐m. Above the conductor are found a mixture of gray clay and sand. The gray clay has an average resistivity of 21 ohm‐m, while the sand has a resistivity of greater than 100 ohm‐m. The large difference in resistivity of these units makes mapping them with a surface geophysical method relatively easy. The blue clay was deposited at the bottom of Lake Alamosa which filled most of the San Luis Valley during the Pleistocene. The geometry of the blue clay is influenced by a graben on the eastern side of the valley. The depth to the blue clay is greater over the graben. Along the eastern edge of valley the blue clay appears to be truncated by faults.

“Candidatus Rickettsia andeanae” en Amblyomma tigrinum, San Luis, Argentina

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Gabriel CICUTTIN

2016-11-01

Full Text Available El objetivo del estudio fue detectar especies del género Rickettsia en garrapatas de la especie Amblyomma tigrinum colectadas sobre carnívoros domésticos y en sangre de caninos domésticos de la provincia de San Luis (Argentina. Entre 2013 y 2015 se colectaron 56 garrapatas adultas de la especie A. tigrinum sobre caninos y felinos domésticos, y se obtuvieron 65 muestras sanguíneas de caninos. Tres garrapatas resultaron positivas mediante la amplificación de un fragmento del espacio intergénico 23S-5S ARNr del género Rickettsia, lográndose secuenciar uno de los productos positivos. La muestra positiva secuenciada también resultó positiva por PCRs de los fragmentos de los genes gltA y ompA. Las secuencias obtenidas resultaron tener una identidad del 100 % de identidad con “Candidatus Rickettsia andeanae”. Todas las muestras sanguíneas resultaron negativas. “Ca. R. andeanae” no ha sido asociada con enfermedad en humanos o animales, sin embargo, es necesario realizar nuevas investigaciones para lograr un mayor conocimiento del riesgo potencial de transmisión de rickettsiosis en la región. SUMMARY. “Candidatus Rickettsia andeanae” in Amblyomma tigrinum ticks from San Luis (Argentina. The aim of this study was to detect species of Rickettsia in Amblyomma tigrinum ticks collected from domestic carnivores and blood of domestic dogs of San Luis (Argentina. Between 2013 and 2015, 56 adults of A. tigrinum from dogs and cats and 65 blood from dogs were collected. Three ticks were positive by amplification of a 23S-5S rRNA fragment, and the sequence of one of the positive products was obtained. The positive sample sequenced was positive by PCRs of fragments of genes gltA and ompA. The sequences obtained were 100% identical with "Candidatus Rickettsia andeanae". All blood samples were negative. “Ca. R. andeanae” has not been associated with disease in humans or animals; however, further research is necessary to achieve greater

Fé antropológica como ponte entre fé e ideología em Juan Luis Segundo

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Alvori Ahlert

2007-01-01

Full Text Available Este texto busca a compreensão da ideología em sua relação com a fé na teologia latinoamericana a partir da concepção de fé antropológica na obra de Juan Luis Segundo. Acreditamos que a questão da ideología, e sua relação com a fé, continua sendo urna questão atual no pensamento cristão, face aos velhos e novos problemas humanos que o novo sáculo vem apresentando. Concentramos nossa análise nos escritos de Juan Luis Segundo, um dos principáis representantes dessa teologia, por ser este teólogo que, ao nosso ver, mais trabalhou, de forma explícita, a questão da ideología e sua relação com a fé no contexto latinoamericanoThis text searchs the understanding of the ideology in its relation with the faith in the Latin American theology from the conception of antropology faith in the workmanship of Juan Luis Segundo. We believe that the question of the ideology, and its relation with the faith, continue being a current question in the Christian thought, face to the old and new human problems that the new century comes presenting. We concentrate our analysis on the writings of Juan Luis Segundo, one of the main representatives of this theology, for being this theologian who, to ours to see, more worked, of explicit form, the question of the ideology and its relation with the faith in the Latin American context

El pachuco entre Octavio Paz y el trayecto para su reinvención en "Zoot Suit" de Luis Valdez

OpenAIRE

Ochoa, Edna

2010-01-01

This article focuses on the figure of the pachuco in the play Zoot Suit by Luis Valdez in order to explore the most important aspects about this character. To achieve this purpose I will examine its representation in various literary texts and I will trace its history to show how the projection of the character changes from the Chicano movement in the 6os. This character is seen in a positive and memorable way, especially in the play Zoot Suit by Luis Valdez, who regards him as...

Introduction to the special collection of papers on the San Luis Basin Sustainability Metrics Project: a methodology for evaluating regional sustainability.

Science.gov (United States)

Heberling, Matthew T; Hopton, Matthew E

2012-11-30

This paper introduces a collection of four articles describing the San Luis Basin Sustainability Metrics Project. The Project developed a methodology for evaluating regional sustainability. This introduction provides the necessary background information for the project, description of the region, overview of the methods, and summary of the results. Although there are a multitude of scientifically based sustainability metrics, many are data intensive, difficult to calculate, and fail to capture all aspects of a system. We wanted to see if we could develop an approach that decision-makers could use to understand if their system was moving toward or away from sustainability. The goal was to produce a scientifically defensible, but straightforward and inexpensive methodology to measure and monitor environmental quality within a regional system. We initiated an interdisciplinary pilot project in the San Luis Basin, south-central Colorado, to test the methodology. The objectives were: 1) determine the applicability of using existing datasets to estimate metrics of sustainability at a regional scale; 2) calculate metrics through time from 1980 to 2005; and 3) compare and contrast the results to determine if the system was moving toward or away from sustainability. The sustainability metrics, chosen to represent major components of the system, were: 1) Ecological Footprint to capture the impact and human burden on the system; 2) Green Net Regional Product to represent economic welfare; 3) Emergy to capture the quality-normalized flow of energy through the system; and 4) Fisher information to capture the overall dynamic order and to look for possible regime changes. The methodology, data, and results of each metric are presented in the remaining four papers of the special collection. Based on the results of each metric and our criteria for understanding the sustainability trends, we find that the San Luis Basin is moving away from sustainability. Although we understand

Prevalence and spatial distribution of bovine brucellosis in San Luis and La Pampa, Argentina.

Science.gov (United States)

Aznar, M N; Linares, F J; Cosentino, B; Sago, A; La Sala, L; León, E; Duffy, S; Perez, A

2015-08-15

Bovine brucellosis (BB) is a zoonotic disease caused by Brucella abortus. BB is endemic in Argentina, where vaccination with Brucella abortus strain 19 is compulsory for 3-to-8 month-old heifers. The objectives of this study were to quantify the prevalence of BB and to identify factors associated with its occurrence, along with the spatial distribution of the disease, in the provinces of La Pampa and San Luis. A two-stage random sampling design was used to sample 8,965 cows (3,513 in La Pampa and 5,452 in San Luis) from 451 farms (187 in La Pampa and 264 in San Luis). Cow and herd prevalence were 1.8 % (95 % CI: 1.3-2.2; n = 157) and 19.7 % (95 % CI: 17.0-22.4; n = 89), respectively. Both cow-level and herd-level prevalence in La Pampa (2.4 and 26.0 %, respectively) were significantly higher than in San Luis (1.4 and 15.5 %, respectively). There were not differences between the proportions of reactive cattle compared to that obtained in a survey conducted in 2005. However, herd prevalence in La Pampa was significantly (P < 0.05) higher compared to that study. Disease was found to be spatially clustered in west La Pampa. The lower the bovine density and the calf/cow ratio, the higher odds of belonging to the cluster. The increase of farm prevalence in the last five years suggests that the disease is spreading and that control measures should be applied in the region. The cluster of infected farms was located in the west region of La Pampa. There, farms have lower animal densities and smaller cow/calf indices compared to the rest of the province. Although western La Pampa has more infected herds, within-farm prevalence was not higher, which suggests that the control program has been relatively successful in controlling the disease at the farm level, and/or that low animal density inherently results in low disease prevalence. Our results provide baseline information on the epidemiology of BB and its potential pattern of transmission in Argentina, which will ultimately

Upper Holocene in a profile:tectonic depression of Conlara-Sierra de San Luis, San Luis, Argentina

International Nuclear Information System (INIS)

Strasser, E.; Chiesa, J.

2004-01-01

The characteristics of three column profiles belonging to eolic sediments, assignated to Upper Holocene of the Depression of Conlara and oriental edge of San Luis range, comprising loessic materials and sandy loessoides, associated to aluvio-eolic and pedogenetic levels are texturally described. Lineal graphics of expression are used to visualize the textual variations according to the deph, those graphics are built according to the curve of frequency accumulated of the distribution of the size, using the parameters of rank in phi (Q) intervals and the half diameter expressed in microns. The interpretation of the succession in ecuatorial direction allows the inferences of the decrease of the size of grain from the planicie (on the east) towards the mountain region (on the west). The values of parameters of rank and statistiral parameters are presented, of all the succession although it is proposed that the Upper Holocene corresponds to the two upper meters [es

Design of batch audio/video conversion platform based on JavaEE

Science.gov (United States)

Cui, Yansong; Jiang, Lianpin

2018-03-01

With the rapid development of digital publishing industry, the direction of audio / video publishing shows the diversity of coding standards for audio and video files, massive data and other significant features. Faced with massive and diverse data, how to quickly and efficiently convert to a unified code format has brought great difficulties to the digital publishing organization. In view of this demand and present situation in this paper, basing on the development architecture of Sptring+SpringMVC+Mybatis, and combined with the open source FFMPEG format conversion tool, a distributed online audio and video format conversion platform with a B/S structure is proposed. Based on the Java language, the key technologies and strategies designed in the design of platform architecture are analyzed emphatically in this paper, designing and developing a efficient audio and video format conversion system, which is composed of “Front display system”, "core scheduling server " and " conversion server ". The test results show that, compared with the ordinary audio and video conversion scheme, the use of batch audio and video format conversion platform can effectively improve the conversion efficiency of audio and video files, and reduce the complexity of the work. Practice has proved that the key technology discussed in this paper can be applied in the field of large batch file processing, and has certain practical application value.

Ampliación de la distribución de Physalaemus biligonigerus (Cope, 1860 (Anura: Leiuperidae en la provincia de San Luis, Argentina

Directory of Open Access Journals (Sweden)

Moreno, Liliana

2008-03-01

Full Text Available República Argentina, San Luis, Departamento Gral. Pedernera, Villa Mercedes (33º42'18,71" S 66º26'27,98" W. Fecha de colección: 29/XII/ 2006. Col: R. Gutierrez y L. Moreno. Los ejemplares están depositados en la Colección Herpetológica de la Universidad Nacional de San Luis (CH-UNSL 0389 – CH-UNSL 0390.

Advancement of thyroid surgery video recording: A comparison between two full HD head mounted video cameras.

Science.gov (United States)

Ortensi, Andrea; Panunzi, Andrea; Trombetta, Silvia; Cattaneo, Alberto; Sorrenti, Salvatore; D'Orazi, Valerio

2017-05-01

The aim of this study was to test two different video cameras and recording systems used in thyroid surgery in our Department. This is meant to be an attempt to record the real point of view of the magnified vision of surgeon, so as to make the viewer aware of the difference with the naked eye vision. In this retrospective study, we recorded and compared twenty thyroidectomies performed using loupes magnification and microsurgical technique: ten were recorded with GoPro ® 4 Session action cam (commercially available) and ten with our new prototype of head mounted video camera. Settings were selected before surgery for both cameras. The recording time is about from 1 to 2 h for GoPro ® and from 3 to 5 h for our prototype. The average time of preparation to fit the camera on the surgeon's head and set the functionality is about 5 min for GoPro ® and 7-8 min for the prototype, mostly due to HDMI wiring cable. Videos recorded with the prototype require no further editing, which is mandatory for videos recorded with GoPro ® to highlight the surgical details. the present study showed that our prototype of video camera, compared with GoPro ® 4 Session, guarantees best results in terms of surgical video recording quality, provides to the viewer the exact perspective of the microsurgeon and shows accurately his magnified view through the loupes in thyroid surgery. These recordings are surgical aids for teaching and education and might be a method of self-analysis of surgical technique. Copyright © 2017 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

Luis Moya y las bóvedas tabicadas en la posguerra española

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Adell, Josep Mª

2005-04-01

Full Text Available In the precarious economic conditions prevailing after the Spanish Civil War, tiled vault construction was resumed to economize on steel and capitalize on the cheap labour available at the time.
Luis Moya excelled in this area, re-exploring this construction technique. Moya benefited in this regard from his thorough knowledge of the early twentieth century works of the Guastavinos in New York acquired during his visits to the U.S.A. with Professor Collins.
His architecture featured tiled vaults with medium-sized spans, normally reinforced with exposed internal Basque tiled arches or ribbing on the extrados.
He described his architectural experimentation in this field in a book titled "Bóvedas tabicadas" (tile vaults, one of the few extensive treatises on the subject, which surpassed the papers published earlier by Fornés-Gurrea and Bergós.

Después de la Guerra Civil, y ante la precaria situación económica del pais, se volvió a retomar en España, la construcción tabicada como medio de encomizar acero en la edificación, y aprovechando la mano de obra barata del momento.
Luis Moya destacó en este aspecto, reinvestigando sobre la construcción tabicada siendo perfectamente conocedor de la obra de los Guastavino en Nueva York, de principios de siglo, por sus visitas realizadas acompañadas del Profesor Collins a EEUU.
La arquitectura de Moya destacó por aplicar soluciones de bóvedas tabicadas de mediana luz que normalmente reforzaba empleando arcos tabicados internos vistos, o bien acostillando las bóvedas por sus trasdós.
Esta labor arquitectónica basada en su propia experimentación constructiva, la publicó en el libro "Bóvedas Tabicadas", siendo uno de los pocos tratados amplios sobre este tema existente, superando con él a lo publicado por Fornés-Gurrea y Bergós con anterioridad.

San Luis Valley - Taos Plateau Landscape-Level Cultural Heritage Values and Risk Assessment

Energy Technology Data Exchange (ETDEWEB)

Wescott, Konstance L. [Argonne National Lab. (ANL), Argonne, IL (United States); Abplanalp, Jennifer M. [Argonne National Lab. (ANL), Argonne, IL (United States); Brown, Jeff [Bureau of Land Management, Monte Vista, CO (United States); Cantwell, Brian [Argonne National Lab. (ANL), Argonne, IL (United States); Dicks, Merrill [Bureau of Land Management, Taos, NM (United States); Fredericks, Brian [Bureau of Land Management, Monte Vista, CO (United States); Krall, Angie [US Forest Service, Creede, CO (United States); Rollins, Katherine E. [Argonne National Lab. (ANL), Argonne, IL (United States); Sullivan, Robert [Argonne National Lab. (ANL), Argonne, IL (United States); Valdez, Arnie [Univ. of New Mexico, Albuquerque, NM (United States); Verhaaren, Bruce [Argonne National Lab. (ANL), Argonne, IL (United States); Vieira, Joseph [Bureau of Land Management, Monte Vista, CO (United States); Walston, Lee [Argonne National Lab. (ANL), Argonne, IL (United States); Zvolanek, Emily A. [Argonne National Lab. (ANL), Argonne, IL (United States)

2016-10-01

The San Luis Valley – Taos Plateau Landscape-Level Cultural Heritage Values and Risk Assessment (hereafter referred to as cultural assessment) is a BLM pilot project designed to see whether the Rapid Ecoregional Assessment (REA) framework (already established and implemented throughout many ecoregions in the West) can be applied to the cultural environment.

La prisión de Fray Luis

Directory of Open Access Journals (Sweden)

Victor Sánchez Montenegro

1960-11-01

Full Text Available Es una creencia general difundida por muchas historias de la literatura española y universal de que la principal causa de la prisión de Fray Luis de León en Valladolid por la Inquisición de esa ciudad, fue el haber traducido el Cantar de los Cantares, atribuidoa Salomón , es decir el Sir hassirim que los LXX tradujeron al griego Aisma Aismaton, y el Cantica Canticorum de la Vulgata. Sin embargo, como  pasaré a demostrar, no fue esa precisamente la causa de la tremenda injusticia sino otras presentarlas por sus enemigos , quienes en sus ataques hasta llegaron a probar que no descendía de Cristianos viejos sino que tenía sangre de judíos.

Puelles romero, Luis: Honoré Daumier: la risa republicana

Directory of Open Access Journals (Sweden)

Óscar Ortega Ruiz

2015-01-01

Full Text Available Recientemente, Abada Editores ha puesto a disposición de sus lectores el nuevo ensayo de Luis Puelles Romero, titular de Estética y Teoría de las Artes de la Universidad de Málaga. Honoré Daumier: la risa republicana se interna en la vida y la obra de este marsellés nacido en 1808 y muerto en París en 1879, cuyo trabajo se desarrolló durante cincuenta años decisivos de la historia de Francia, desde el final del periodo legitimista hasta los inicios de la III República.

Seroprevalencia de sífilis en mujeres embarazadas en San Luis Potosí Seroprevalence of syphilis in pregnant women in San Luis Potosí

OpenAIRE

Daniel E Noyola; Octavio Malacara-Alfaro; Victoria Lima-Rogel; Abraham Torres-Montes

2006-01-01

OBJETIVO: Determinar la seroprevalencia de sífilis en mujeres embarazadas. MATERIAL Y MÉTODOS: Encuesta seroepidemiológica en 1 857 mujeres que acudieron para la atención del parto a un hospital general de la ciudad de San Luis Potosí. RESULTADOS: Se diagnosticó sífilis en cinco (0.27%) mujeres al momento del parto. Los factores maternos asociados con una probabilidad superior de presentar sífilis incluyeron mayor edad materna, mayor número de embarazos previos y vivir en unión libre con su p...

The tectonic significance of K/Ar illite fine-fraction ages from the San Luis Formation (Eastern Sierras Pampeanas, Argentina)

Science.gov (United States)

Wemmer, Klaus; Steenken, André; Müller, Stefan; de Luchi, Mónica G. López; Siegesmund, Siegfried

2011-04-01

The Sierra de San Luis forms the southern tip of the Eastern Sierras Pampeanas in central Argentina. Two narrow belts of low-grade phyllites and quartz arenites, i.e. the San Luis Formation, have accommodated part of the strain-related differential exhumation of the medium- to high-grade metamorphic domains that constitute to the basement complex of the sierra. Eleven phyllite samples were subjected to the K/Ar fine-fraction dating technique. Results are interpreted in relation to the Kübler index of the illites, which indicate epimetamorphic conditions for the majority of the samples. Obtained ages between 330 and 290 Ma cover a period of compressional tectonics in the late Mississippian (Visean/Serpukhovian boundary) followed by the subsidence during the formation of the Paganzo Basin in the provinces of La Rioja and San Luis. These tectonic movements are coincident with the Toco orogeny in northern Chile and southern Bolivia. This suggests that the older K/Ar ages document the compressional stage and that younger ages record the cooling of the basement during the subsequent extensional uplift of the basement.

Concentrations of persistent organic pollutants (POPs) and heavy metals in soil from San Luis Potosí, México.

Science.gov (United States)

Perez-Vazquez, Francisco Javier; Flores-Ramirez, Rogelio; Ochoa-Martinez, Angeles Catalina; Orta-Garcia, Sandra Teresa; Hernandez-Castro, Berenice; Carrizalez-Yañez, Leticia; Pérez-Maldonado, Iván N

2015-01-01

The aim of this study was to assess the levels of polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyltrichloroethane (DDT), p,p'-dichlorodiphenyldichloroethylene (DDE), and four heavy metals (arsenic, cadmium, lead, and mercury) in soil from the city of San Luis Potosí in Mexico. In order to confirm the presence of the previously mentioned compounds, outdoor surface soil samples were collected and analyzed by gas chromatography/mass spectrometer for PBDEs, PCBs, DDT, and DDE. Meanwhile, heavy metals were quantified using the atomic absorption spectrophotometry technique. The total PBDEs levels ranged from 5.0 to 134 μg/kg dry weight (dw), with a total mean PBDEs level of 22.0 ± 32.5 μg/kg dw (geometric mean ± standard deviation). For PCBs, the total mean level in the studied soil was 21.6 ± 24.7 μg/kg dw (range, Luis Potosí, Mexico, and considering that soil is an important pathway of exposure for people, a biomonitoring program for the surveillance of the general population in the city of San Luis Potosi is necessary.

Video games are exciting: a European study of video game-induced seizures and epilepsy.

Science.gov (United States)

Kasteleijn-Nolst Trenité, D G A; Martins da Silva, A; Ricci, S; Rubboli, G; Tassinari, C A; Lopes, J; Bettencourt, M; Oosting, J; Segers, J P

2002-06-01

Video game seizures have been reported in photosensitive and non-photosensitive patients with epilepsy. The game Super Mario World, has led to many cases of first seizures. We examined whether this game was indeed more provocative than other programs and whether playing the game added to this effect. We prospectively investigated 352 patients in four European cities, using a standard protocol including testing of a variety of visual stimuli. We correlated historical data on provocative factors in daily life with electroencephalographic laboratory findings. The video game, Super Mario World proved more epileptogenic than standard TV programs and as provocative as programs with flashing lights and patterns. Most striking was the fact that video game-viewing and-playing on the 50 and 100 Hz TV was significantly more provocative than viewing the standard program (P video game Mario World on a 50 Hz TV, appeared to be significantly more provocative than playing this game on the 100 Hz TV (P Children and adolescents with a history of video game seizures are, in the vast majority, photosensitive and should be investigated with standardised photic stimulation. Games and programs with bright background or flashing images are specifically provocative. Playing a video game on a 100 Hz TV is less provocative [published with videosequences].

Embarazo en la adolescencia: su comportamiento en San Luis Pregnancy in adolescence: its behavior in San Luis municipality

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Dania Rangel Díaz

2012-08-01

Full Text Available Introducción: El embarazo en las edades tempranas, sin la adecuada preparación biológica y psicológica, trae al contraste una serie de dificultades y problemas. Objetivo: Evaluar el comportamiento del embarazo en la adolescencia en el municipio de "San Luis" durante el período 2005-2010. Material y método: Se realizó una investigación aplicada partiendo de los conocimientos teóricos y prácticos. A partir de la metodología cuantitativa se presenta un diseño longitudinal, retrospectivo, analítico y descriptivo. Se utilizó como universo (2165 todas las mujeres embarazadas desde enero de 2005 a diciembre del año 2010; la muestra la constituyeron todas las embarazadas adolescentes (405 pertenecientes al municipio San Luis. Las técnicas y procedimientos de obtención de la información fue a través de la revisión documental. Se hizo una minuciosa revisión de las historias clínicas y de la información que se guarda en archivo del departamento de genética municipal y se recolectaron datos como: la edad materna, causa del embarazo, ocupación, las enfermedades presentadas durante el embarazo, el peso al nacer y el abandono escolar. Se utilizó el método empírico empleando la media porcentual como medida de tendencia central para variables cualitativas. Resultados: Predominan las adolescentes entre 16 y 18 años de edad, todas estudiantes; la principal causa del embarazo fue el desconocimiento. Se realizó una captación precoz al mayor porciento de ellas; como la enfermedad asociada predominó la hipertensión arterial. Conclusiones: Se logró un peso adecuado al final de la gestación y en su mayoría las estudiantes no continuaron los estudios.Introduction: pregnancy in early ages, without sufficient biological and psychological preparation, brings about a series of difficulties and problems. Objective: to assess the behavior of pregnancy in adolescence in “San Luis” municipality during a five-year period (2005

Fossil content and structural relationships of the San Luis zone and the Caborca zone of NW Sonora, Mexico, suppression of the precambrian Z of Caborca

International Nuclear Information System (INIS)

Radelli, Luigi; Solis Weiss, Vivianne; Dorame Navarro, Miguel; De La Cruz Ortega, Lissette del Carmen; Urrutia, Jose

2008-01-01

In the Caborca region of western Sonora a Precambrian Z does not cover a unique Precambrian socle as previously believed. Two tectonic zones occur there instead: the San Luis Zone and the Caborca Zone. The first is comprised of the Precambrian San Luis socle of gneiss and granite, crossed by 1.1 Ga old anorthosites, the San Luis sedimentary cover, and, above it, a Lower Jurassic volcano-sedimentary sequence. The Caborca Zone consists of the Precambrian Bamori socle of parametamorphic rocks crossed by 1.1 Ga old Aibo granite, and of the Gamuza sedimentary cover. 1.1 Ga ago the two zones were far away from each other. They have been brought together by the Nevadian orogeny. Both zones are allochthonous, and the Caborca Zone is a nappe upon the San Luis Zone. The lowermost units of the Gamuza cover furnished psammocorals and a possible Pterophyllum jageri (?). Accordingly, its geological age is either Palaeozoic or Triassic.The San Luis cover furnished Nematophites [Prototaxites (?) and Nematothallus] from its lower part; Calcispongiae, Cardaicarpus' seeds, and Artisia from its upper part Thus, it is a Devono-Carboniferous unit. The study area belongs in the Baja-Borderland block, which underwent, an Eocene northwards drifting of about 900 - 1000 km, and a 30 celsius degrade to 40 celsius degrade clockwise rotation relative to the main part of Sonora.

Implementación de videoclases en YOUTUBE para el fortalecimiento y clarificación de la temática de trabajo y energía en el curso de física de grado décimo del colegio San Luis Gonzaga

OpenAIRE

García Cano, Manuel Alberto

2014-01-01

El presente trabajo se realizó con el objetivo de implementar las video-clases como una herramienta pedagógica complementaria a los procesos educativos desarrollados en el aula de clase del grado décimo de la institución San Luis Gonzaga de la ciudad de Manizales, así como su impacto en la motivación de la población estudiantil para el abordaje de las temáticas de asignaturas como la física (puntualmente trabajo y energía mecánica). La medición de la motivación se realizó mediante el uso de u...

Effects of micro transactions on video games industry

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Tomić Nenad

2017-01-01

Full Text Available During the twentieth century, the entertainment industry recorded a steady revenue growth. The progress of information and communication technology (ICT influenced the creation of a new segment in the industry at the beginning of the 80s, known as the video game industry. During the first two decades, the dominant model of earning for video games publishers was sale of a full game, which means that users were obliged to pay in order to play the game (pay-to-play concept. In the past ten years, publishers have developed a new approach, which instead of selling entire game content at once tends to decompose the sale into several smaller transactions. The prices of these supplements are often calculated in the virtual currency that is considered to be the currency of video game, and not in one of convertible currencies, which creates additional confusion. The subject of the paper is to explain the essence of microtransactions as type of electronic payments created in the video games industry and to observe their role in the process of industry transformation.

Emma Zunz by Jorge Luis Borges: the Concept of Justice

OpenAIRE

Rosa Vila

2014-01-01

Emma Zunz, by Jorge Luis Borges, is the story of a girl who decides to kill her boss in order to avenge her father’s death, believing that her father’s version of an event that occurred years before was true. Thus, she devises a secret plan, which includes losing her virginity to a complete stranger, shortly before committing the crime, so she could argue that her boss had raped her and that she killed him in self-defense. Firstly, the text shows the contrast between formal justic...

Entrevista con Luis Ramiro Beltrán Salmón

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Fanny Patricia Franco Chávez

2011-01-01

Full Text Available Luis Ramiro Beltrán es un personaje obligado a la hora de hablar de la relación entre la comunicación y el desarrollo. En la siguiente entrevista, conocemos la génesis de este campo a través de un personaje que nos comparte su perfil como pionero y sus experiencias iniciales en Latinoamérica para acercarnos a las primeras definiciones de este campo y a lo que debe ser esencial en la formación del perfil de un comunicador para el desarrollo social.

Missionary Pragmalinguistics: Father Diego Luis de Sanvitores’ grammar within the tradition of Philippine grammars

NARCIS (Netherlands)

Winkler, A.P.

2016-01-01

The grammar written in Latin, in 1668, by the Jesuit missionary Father Diego Luis de Sanvitores (1627-1672) is the oldest description we have of Chamorro, a language spoken on the Mariana islands. The grammar received a number of bad reviews and as a consequence has become neglected and almost

Luis Llach : el arquitecto de Quibdó

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Luis Fernando González Escobar

1993-09-01

Full Text Available En el año 1907, en varias ediciones del periódico Ecos del Chocó, de la ciudad de Quibdó, apareció un anuncio en donde un tal Luis Llach Ll., ostentando el título de ingeniero civil, ofertaba sus servicios para la "Construcción de toda clase de edificios, Levantamientos de planos. elaboración de presupuestos, etc. y toda lo concerniente al ramo de ingeniería, contando para el efecto con instrumentos modernos y personal idóneo" ¿La dirección? El lado sur del Convento. ¿Quién era este "ingeniero" y cuáles eran las razones que lo condujeron a establecerse en una localidad que por esos años no era más que un villorrio con algo menos de 12.000 habitantes?

Reduced blood nrf-2 mRNA in local overweight boys at risk of metabolic complications: a study in San Luis City, San Luis, Argentina.

Science.gov (United States)

Santillán, Lucas D; Moyano, Marta; Frau, Martín; Flores, Orlando; Siewert, Susana; Zirulnick, Fanny; Ramirez, Dario C; Giménez, Maria S

2013-10-01

Childhood overweight (OW) is a matter of public health concern because of its long-term impact on adulthood health. NF-E2-related factor 2 (Nrf-2) regulates the antioxidant/lipogenic response to a sustained positive energy balance that prevails during weight gain. Here we aimed at studying a possible link between OW and Nrf-2-dependent antioxidant/lipogenic response in a local population of boys at risk of metabolic complications. We measured clinical and biochemical parameters related to lipid metabolism, oxidative stress, and metabolic syndrome in a population of OW boys [body mass index (BMI) percentile ≥85(th) and Luis City, San Luis, Argentina. Compared to NW, OW boys had lower insulin sensitivity, an altered plasma lipid profile, and increased markers of oxidative stress and inflammatory fatty acids. OW boys also had a higher atherogenic index and peripheral insulin resistance than NW boys. We also found that glutathione peroxidase activity and the reduced glutathione to oxidized glutathione ratio were lower in OW boys than NW boys, suggesting that OW boys may have an altered antioxidant response to oxidative stress. Finally, Nrf-2 expression negatively correlated with metabolic syndrome parameters in OW boys. Our data suggest that OW boys have a reduced antioxidant and lipogenic response to a positive energy balance, resulting in oxidative stress, insulin resistance, and risk of developing metabolic complications. Our data also provide a rationale for nutritional interventions aimed at restoring Nrf-2 expression to reduce the risk of metabolic complications in OW boys.

Behemoth, Lilith e Anjos: três monstros judaicos em Jorge Luis Borges

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Marcos Fábio de Faria

2009-10-01

Full Text Available Análise dos verbetes de monstros judaicos recriados por Jorge Luis Borges em Manual de zoologia fantástica e O livro dos seres imaginários, a saber: Behemoth, Lilith e os anjos Haniel, Kazfiel, Azriel e Aniel. As múltiplas representações e versões desses verbetes, bem como seu diálogo com a Torah e sua inscrição na literatura.

Juizados Especiais e Ativismo Judicial à Luz de Luis Alberto Warat

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Zenildo Bodnar

2012-07-01

Full Text Available This article addresses, in a punctual way, some reflections on the judicial activism in the Special Courts camp. It seeks to evaluate the existence of a place for the conciliator in the stir that permeates the procedural and substantial models of legal proceedings. For this, as theoretical references, the postulates of Luis Alberto Warat are used, in order to overcome such dyad in favor of an effective judicial protection, without following the ways of the Free Movement of Law and Instrumentality of Process. For the development of this research, it has been used the inductive method, operated by the operational concepts and techniques of literature.Resumo: O presente artigo aborda de forma pontual algumas reflexões sobre o ativismo judicial na seara dos Juizados Especiais. Procura-se avaliar a existência de um lugar para o conciliador na celeuma que permeia os modelos procedimentalistas e substancialistas de processo jurisdicional. Para tanto, como referencial teórico utiliza-se os postulados de Luis Alberto Warat no intuito de superar a referida díade em favor de uma tutela judicial efetiva, sem que se trilhe os caminhos do Movimento do Direito Livre e da Instrumentalidade do Processo. Utilizou-se, para o desenvolvimento desta pesquisa, o método indutivo, operacionalizado pelas técnicas de conceitos operacionais e da pesquisa bibliográfica.

Luis Huerta: eugenesia, medicina y pedagogía en España Luis Huerta: Eugenics, Medicine and Pedagogy in Spain

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Luis Miguel LÁZARO LORENTE

2013-07-01

Full Text Available En contraste con lo observable en la historiografía de otros países europeos y anglosajones, el estudio de la introducción y difusión de los principios y prácticas de la Eugenesia, como tema de investigación, no ha contado en España con muchos cultivadores. Menos todavía han sido objeto de estudio las relaciones del pensamiento eugénico con el ámbito pedagógico para indagar la recepción que tiene entre el Magisterio, y conocer el conjunto de reacciones que provoca, así como la participación de los maestros en la potencial difusión de sus planteamientos. Se aborda aquí una aproximación a ese tema centrando el análisis en las relaciones que en la España del primer tercio del siglo XX se establecen entre Medicina, Pedagogía y Eugenesia. Para ello tomamos como referente e hilo conductor la figura y el pensamiento del maestro asturiano Luis Huerta Naves, decidido impulsor y propagandista incansable de la Eugenesia en nuestro país.By comparison with the historiography of other European and Anglo-Saxon countries, the study of the origins and spread of Eugenics in Spain has not received much attention. Even less research has been done on the degree of acceptance of eugenic thought in the pedagogical domain or on the role teachers may have in the diffusion of eugenics. This paper attempts to explore the subject while focusing the analysis on the relations that were established among Medicine, Pedagogy and Eugenics in Spain during the first third of the 20th century. We will take as a point of reference and guiding line of thought the figure of the Asturian teacher Luis Huerta Naves, who was the driving force and tireless advocate of the eugenics movement in our country.

Mesquite: A multi-purpose species in two locations of San Luis Potosi, Mexico

Science.gov (United States)

Jose Villanueva-Diaz; Augustin Hernandez-Reyna; J. Armando Ramirez-Garcia

2000-01-01

The mesquite woodland distributed in approximately 200,000 ha in Llanos de Angostura, and Pozo del Carmen, San Luis Potosi, represents a main source of firewood, construction material, honey, and forage for the rural people that inhabit part of the lowlands of the hydrological region RH26 and RH37. Firewood collection in this region averages 142 m3 /week. Most of this...

GIFT-Grab: Real-time C++ and Python multi-channel video capture, processing and encoding API

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Dzhoshkun Ismail Shakir

2017-10-01

Full Text Available GIFT-Grab is an open-source API for acquiring, processing and encoding video streams in real time. GIFT-Grab supports video acquisition using various frame-grabber hardware as well as from standard-compliant network streams and video files. The current GIFT-Grab release allows for multi-channel video acquisition and encoding at the maximum frame rate of supported hardware – 60 frames per second (fps. GIFT-Grab builds on well-established highly configurable multimedia libraries including FFmpeg and OpenCV. GIFT-Grab exposes a simplified high-level API, aimed at facilitating integration into client applications with minimal coding effort. The core implementation of GIFT-Grab is in C++11. GIFT-Grab also features a Python API compatible with the widely used scientific computing packages NumPy and SciPy. GIFT-Grab was developed for capturing multiple simultaneous intra-operative video streams from medical imaging devices. Yet due to the ubiquity of video processing in research, GIFT-Grab can be used in many other areas. GIFT-Grab is hosted and managed on the software repository of the Centre for Medical Image Computing (CMIC at University College London, and is also mirrored on GitHub. In addition it is available for installation from the Python Package Index (PyPI via the pip installation tool. Funding statement: This work was supported through an Innovative Engineering for Health award by the Wellcome Trust [WT101957], the Engineering and Physical Sciences Research Council (EPSRC [NS/A000027/1] and a National Institute for Health Research Biomedical Research Centre UCLH/UCL High Impact Initiative. Sébastien Ourselin receives funding from the EPSRC (EP/H046410/1, EP/J020990/1, EP/K005278 and the MRC (MR/J01107X/1. Luis C. García-Peraza-Herrera is supported by the EPSRC-funded UCL Centre for Doctoral Training in Medical Imaging (EP/L016478/1.

Protocol Standards for Reporting Video Data in Academic Journals.

Science.gov (United States)

Rowland, Pamela A; Ignacio, Romeo C; de Moya, Marc A

2016-04-01

Editors of biomedical journals have estimated that a majority (40%-90%) of studies published in scientific journals cannot be replicated, even though an inherent principle of publication is that others should be able to replicate and build on published claims. Each journal sets its own protocols for establishing "quality" in articles, yet over the past 50 years, few journals in any field--especially medical education--have specified protocols for reporting the use of video data in research. The authors found that technical and industry-driven aspects of video recording, as well as a lack of standardization and reporting requirements by research journals, have led to major limitations in the ability to assess or reproduce video data used in research. Specific variables in the videotaping process (e.g., camera angle), which can be changed or be modified, affect the quality of recorded data, leading to major reporting errors and, in turn, unreliable conclusions. As more data are now in the form of digital videos, the historical lack of reporting standards makes it increasingly difficult to accurately replicate medical educational studies. Reproducibility is especially important as the medical education community considers setting national high-stakes standards in medicine and surgery based on video data. The authors of this Perspective provide basic protocol standards for investigators and journals using video data in research publications so as to allow for reproducibility.

Emphatic or Reflexive? On the Endophoric Character of French "lui-meme" and Similar Complex Pronouns.

Science.gov (United States)

Zribi-Hertz, Anne

1995-01-01

This study examined the referential properties of a class of complex pronouns labelled M-Pronouns, exemplified by Old English "himself," French "lui-meme," and English "his own." It is shown that M-Pronouns exhibit some properties commonly taken as characterizing reflexive anaphors, and that they also occur as…

Uranium occurrences in the pegmatite 'Las Cuevas', province of San Luis, Argentine Republic

International Nuclear Information System (INIS)

Daziano, C.O.; Karlsson, A.C.; Ayala, R.

1993-01-01

Mineral associations found in an uranium deposit of Sierras Pampeanas, San Luis, are considered in these papers. Damourite stands out among the uranium minerals related to uraninite and coffinite. Pyrite, marcasite and other sulphides are found together with apatite and gummite. Autunite is the uranium secondary mineral more abundant. A mineralization with epigenetic contribution by circulating solutions is suggested to the studied area. (Author)

The nuclear industry is about to begin a new dynamic. Interview with Luis Echavarri

Energy Technology Data Exchange (ETDEWEB)

Mitev, Lubomir [NucNet, Brussels (Belgium)

2014-05-15

The nuclear industry has changed significantly in the 17 years since Luis Echavarri became director-general of the Organisation for Economic Development and Cooperation's (OECD) Paris-based Nuclear Energy Agency (NEA). As he approaches retirement, Mr Echavarri speaks to NucNet about the priorities for the industry as it enters the post-Fukushima era. (orig.)

Pre-Exposure Prophylaxis YouTube Videos: Content Evaluation.

Science.gov (United States)

Kecojevic, Aleksandar; Basch, Corey; Basch, Charles; Kernan, William

2018-02-16

Antiretroviral (ARV) medicines reduce the risk of transmitting the HIV virus and are recommended as daily pre-exposure prophylaxis (PrEP) in combination with safer sex practices for HIV-negative individuals at a high risk for infection, but are underused in HIV prevention. Previous literature suggests that YouTube is extensively used to share health information. While pre-exposure prophylaxis (PrEP) is a novel and promising approach to HIV prevention, there is limited understanding of YouTube videos as a source of information on PrEP. The objective of this study was to describe the sources, characteristics, and content of the most widely viewed PrEP YouTube videos published up to October 1, 2016. The keywords "pre-exposure prophylaxis" and "Truvada" were used to find 217 videos with a view count >100. Videos were coded for source, view count, length, number of comments, and selected aspects of content. Videos were also assessed for the most likely target audience. The total cumulative number of views was >2.3 million, however, a single Centers for Disease Control and Prevention video accounted for >1.2 million of the total cumulative views. A great majority (181/217, 83.4%) of the videos promoted the use of PrEP, whereas 60.8% (132/217) identified the specific target audience. In contrast, only 35.9% (78/217) of the videos mentioned how to obtain PrEP, whereas less than one third addressed the costs, side effects, and safety aspects relating to PrEP. Medical and academic institutions were the sources of the largest number of videos (66/217, 30.4%), followed by consumers (63/217, 29.0%), community-based organizations (CBO; 48/217, 22.1%), and media (40/217, 18.4%). Videos uploaded by the media sources were more likely to discuss the cost of PrEP (PYouTube videos can be used to share reliable PrEP information with individuals. Further research is needed to identify the best practices for using this medium to promote and increase PrEP uptake. ©Aleksandar Kecojevic

Mineralogical characterization of historical portuguese wall tiles of Sao Luis, Maranhao, Brazil; Caracterizacao mineralogica de azulejos portugueses do Centro Historico de Sao Luis do Maranhao

Energy Technology Data Exchange (ETDEWEB)

Rivas Mercury, J.M.; Vasconcelos, N.S.L.S.; Cabral, A.A., E-mail: rivascefetma@gmail.co [Instituto Federal de Educacao, Ciencia e Tecnologia do Maranhao (IFMA), Sao Luis, MA (Brazil). Programa de Mestrado em Engenharia de Materiais; Pereira, D.J. Costa [Centro de Criatividade Odylo Costa Filho (SECMA), Sao Luis, MA (Brazil). Centro Historico; Angelica, R.S. [Universidade Federal do Para (CG/UFPA), Belem, PA (Brazil). Inst. de Geociencias

2010-07-01

Portuguese wall tiles from centuries, XVII, XVIII and XIX, found in Sao Luis Maranhao has been studied by X-ray diffraction, in order to interpret the possible raw material and burning temperature. The mineral phases, Quartz, Wollastonite, Calcite and Gehlenite were identified in all samples. Based on the results it is possible to affirm that the main raw materials used to manufacture this materials was probably mixtures of kaolinite clay and calcite. Based on the mineralogical information it was also possible to state that burning temperature of this wall tiles was lower than 1000 deg C. (author)

Luis Huerta: Eugenics, Medicine and Pedagogy in Spain

Directory of Open Access Journals (Sweden)

Luis Miguel LÁZARO LORENTE

2013-11-01

Full Text Available By comparison with the historiography of other European and Anglo-Saxon countries, the study of the origins and spread of Eugenics in Spain has not received much attention. Even less research has been done on the degree of acceptance of eugenic thought in the pedagogical domain or on the role teachers may have in the diffusion of eugenics. This paper attempts to explore the subject while focusing the analysis on the relations that were established among Medicine, Pedagogy and Eugenics in Spain during the first third of the 20th century. We will take as a point of reference and guiding line of thought the figure of the Asturian teacher Luis Huerta Naves, who was the driving force and tireless advocate of the eugenics movement in our country.

Video content analysis of surgical procedures.

Science.gov (United States)

Loukas, Constantinos

2018-02-01

In addition to its therapeutic benefits, minimally invasive surgery offers the potential for video recording of the operation. The videos may be archived and used later for reasons such as cognitive training, skills assessment, and workflow analysis. Methods from the major field of video content analysis and representation are increasingly applied in the surgical domain. In this paper, we review recent developments and analyze future directions in the field of content-based video analysis of surgical operations. The review was obtained from PubMed and Google Scholar search on combinations of the following keywords: 'surgery', 'video', 'phase', 'task', 'skills', 'event', 'shot', 'analysis', 'retrieval', 'detection', 'classification', and 'recognition'. The collected articles were categorized and reviewed based on the technical goal sought, type of surgery performed, and structure of the operation. A total of 81 articles were included. The publication activity is constantly increasing; more than 50% of these articles were published in the last 3 years. Significant research has been performed for video task detection and retrieval in eye surgery. In endoscopic surgery, the research activity is more diverse: gesture/task classification, skills assessment, tool type recognition, shot/event detection and retrieval. Recent works employ deep neural networks for phase and tool recognition as well as shot detection. Content-based video analysis of surgical operations is a rapidly expanding field. Several future prospects for research exist including, inter alia, shot boundary detection, keyframe extraction, video summarization, pattern discovery, and video annotation. The development of publicly available benchmark datasets to evaluate and compare task-specific algorithms is essential.

Uranium series isotopes concentration in sediments at San Marcos and Luis L. Leon reservoirs, Chihuahua, Mexico

Science.gov (United States)

Méndez-García, C.; Renteria-Villalobos, M.; García-Tenorio, R.; Montero-Cabrera, M. E.

2014-07-01

Spatial and temporal distribution of the radioisotopes concentrations were determined in sediments near the surface and core samples extracted from two reservoirs located in an arid region close to Chihuahua City, Mexico. At San Marcos reservoir one core was studied, while from Luis L. Leon reservoir one core from the entrance and another one close to the wall were investigated. 232Th-series, 238U-series, 40K and 137Cs activity concentrations (AC, Bq kg-1) were determined by gamma spectrometry with a high purity Ge detector. 238U and 234U ACs were obtained by liquid scintillation and alpha spectrometry with a surface barrier detector. Dating of core sediments was performed applying CRS method to 210Pb activities. Results were verified by 137Cs AC. Resulting activity concentrations were compared among corresponding surface and core sediments. High 238U-series AC values were found in sediments from San Marcos reservoir, because this site is located close to the Victorino uranium deposit. Low AC values found in Luis L. Leon reservoir suggest that the uranium present in the source of the Sacramento - Chuviscar Rivers is not transported up to the Conchos River. Activity ratios (AR) 234U/overflow="scroll">238U and 238U/overflow="scroll">226Ra in sediments have values between 0.9-1.2, showing a behavior close to radioactive equilibrium in the entire basin. 232Th/overflow="scroll">238U, 228Ra/overflow="scroll">226Ra ARs are witnesses of the different geological origin of sediments from San Marcos and Luis L. Leon reservoirs.

Uranium series isotopes concentration in sediments at San Marcos and Luis L. Leon reservoirs, Chihuahua, Mexico

International Nuclear Information System (INIS)

Méndez-García, C.; Montero-Cabrera, M. E.; Renteria-Villalobos, M.; García-Tenorio, R.

2014-01-01

Spatial and temporal distribution of the radioisotopes concentrations were determined in sediments near the surface and core samples extracted from two reservoirs located in an arid region close to Chihuahua City, Mexico. At San Marcos reservoir one core was studied, while from Luis L. Leon reservoir one core from the entrance and another one close to the wall were investigated. 232 Th-series, 238 U-series, 40 K and 137 Cs activity concentrations (AC, Bq kg −1 ) were determined by gamma spectrometry with a high purity Ge detector. 238 U and 234 U ACs were obtained by liquid scintillation and alpha spectrometry with a surface barrier detector. Dating of core sediments was performed applying CRS method to 210 Pb activities. Results were verified by 137 Cs AC. Resulting activity concentrations were compared among corresponding surface and core sediments. High 238 U-series AC values were found in sediments from San Marcos reservoir, because this site is located close to the Victorino uranium deposit. Low AC values found in Luis L. Leon reservoir suggest that the uranium present in the source of the Sacramento – Chuviscar Rivers is not transported up to the Conchos River. Activity ratios (AR) 234 U/ 238 U and 238 U/ 226 Ra in sediments have values between 0.9–1.2, showing a behavior close to radioactive equilibrium in the entire basin. 232 Th/ 238 U, 228 Ra/ 226 Ra ARs are witnesses of the different geological origin of sediments from San Marcos and Luis L. Leon reservoirs

Evaluating the sustainability of a regional system using Fisher information in the San Luis Basin, Colorado

Science.gov (United States)

This paper describes the theory, data, and methodology necessary for using Fisher information to assess the sustainability of the San Luis Basin (SLB) regional system over time. Fisher information was originally developed as a measure of the information content in data and is an ...

Green Net Regional Product for the San Luis Basin, Colorado: An Economic Measure of Regional Sustainability

Science.gov (United States)

This paper presents the data sources and methodology used to estimate Green Net Regional Product (GNRP), a green accounting approach, for the San Luis Basin (SLB). GNRP is equal to aggregate consumption minus the depreciation of man-made and natural capital. We measure the move...

Introducción [Jorge Luis Borges : Translación e Historia

OpenAIRE

de Toro, Alfonso

2015-01-01

El presente volumen es el resultado de una selección de las ponencias presentadas en el coloquio internacional "Jorge Luis Borges: Translación e Historia" realizado con el auspicio de la Deutsche Forschungsgemeinschaft en el Centro de Investigación Iberoamericana del 4 al 9 de diciembre de 2007 y pone en el centro de su reflexión a Borges como fenómeno de "translación", entendiendo por el concepto de "translación" un complejo proceso cultural, medial, social y pragmasemiótico que abarca tanto...

Master Mentors: Linda Golian-Lui University of Hawaii-Hilo--George Oberle George Mason University, VA

Science.gov (United States)

Library Journal, 2005

2005-01-01

Many movers and shakers inspire admiration and even awe, but those who inspire love are the mentors who have changed lives. That is why many grateful librarians nominated Linda Golian-Lui and George Oberle. Both of them were accidental librarians, work-study students whose supervisors encouraged them to become paraprofessionals, and then…

Blue oak plant communities of southern San Luis Obispo and northern Santa Barbara Counties, California

Science.gov (United States)

Mark I. Borchert; Nancy D. Cunha; Patricia C. Krosse; Marcee L. Lawrence

1993-01-01

An ecological classification system has been developed for the Pacific Southwest Region of the Forest Service. As part of that classification effort, blue oak (Quercus douglasii) woodlands and forests of southern San Luis Obispo and northern Santa Barbara Counties in Los Padres National Forest were classified into I3 plant communities using...

Luis G. Urbina: crônicas porfirianas

Directory of Open Access Journals (Sweden)

Miguel Angel Castro

2015-11-01

Full Text Available As descrições amenas de uma cidade instável, às vezes divertida e atrativa, outras, entediante e miserável, assim como a crítica de costumes de seus habitantes, abrem um espaço original à tolerância e nele se fundamenta a natureza democrática da crônica jornalística do último quarto do século XIX e se determina o prolongamento de alguns dos seus traços literários no início do século XX. Com o intuito de conservar o valor literário de origem se constrói uma poética do gênero. Neste artigo, apresentamos algumas observações feitas a esse respeito nas crônicas que Luis G. Urbina publicou em El Mundo ilustrado entre 1899 e 1906.      This work is licensed under a Creative Commons Attribution 3.0 License.

For Video Games, Bad News Is Good News: News Reporting of Violent Video Game Studies.

Science.gov (United States)

Copenhaver, Allen; Mitrofan, Oana; Ferguson, Christopher J

2017-12-01

News coverage of video game violence studies has been critiqued for focusing mainly on studies supporting negative effects and failing to report studies that did not find evidence for such effects. These concerns were tested in a sample of 68 published studies using child and adolescent samples. Contrary to our hypotheses, study effect size was not a predictor of either newspaper coverage or publication in journals with a high-impact factor. However, a relationship between poorer study quality and newspaper coverage approached significance. High-impact journals were not found to publish studies with higher quality. Poorer quality studies, which tended to highlight negative findings, also received more citations in scholarly sources. Our findings suggest that negative effects of violent video games exposure in children and adolescents, rather than large effect size or high methodological quality, increase the likelihood of a study being cited in other academic publications and subsequently receiving news media coverage.

Correlation Between Arthroscopy Simulator and Video Game Performance: A Cross-Sectional Study of 30 Volunteers Comparing 2- and 3-Dimensional Video Games.

Science.gov (United States)

Jentzsch, Thorsten; Rahm, Stefan; Seifert, Burkhardt; Farei-Campagna, Jan; Werner, Clément M L; Bouaicha, Samy

2016-07-01

To investigate the association between arthroscopy simulator performance and video game skills. This study compared the performances of 30 volunteers without experience performing arthroscopies in 3 different tasks of a validated virtual reality knee arthroscopy simulator with the video game experience using a questionnaire and actual performances in 5 different 2- and 3-dimensional (D) video games of varying genres on 2 different platforms. Positive correlations between knee arthroscopy simulator and video game performances (ρ = 0.63, P video game skills, they show a correlation with 2-D tile-matching puzzle games only for easier tasks with a rather limited focus, and highly correlate with 3-D sports and first-person shooter video games. These findings show that experienced and good 3-D gamers are better arthroscopists than nonexperienced and poor 3-D gamers. Level II, observational cross-sectional study. Copyright © 2016 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

Arthroscopy Techniques: The Premier Arthroscopic Video Library.

Science.gov (United States)

Leland, J Martin; Lubowitz, James H; Provencher, Matthew T

2016-12-01

Arthroscopy has always been focused on its roots-providing practical, clinically relevant information for the practicing arthroscopist. In the digital age, there is a need for publication platforms dedicated to multimedia presentations, hence the birth of Arthroscopy Techniques, Arthroscopy's online video companion. With over 700 videos, our library is filled with an exceptional collection of arthroscopic educational material, with topics ranging from the basics of arthroscopy to the most complex surgical procedures. One series, published this month, explores elbow arthroscopy with specific attention to describing various elbow portals, patient positioning, and tricks of elbow arthroscopy known only to the masters. If you have yet to view Arthroscopy Techniques, experience the future of arthroscopy today at www.ArthroscopyTechniques.org! Copyright © 2016 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

Black bear abundance, habitat use, and food habits in the Sierra San Luis, Sonora, Mexico

Science.gov (United States)

Rodrigo Sierra Corona; Ivan A. Sayago Vazquez; M. del Carmen Silva Hurtado; Carlos A. Lopez Gonzalez

2005-01-01

We studied black bears to determine habitat use, food habits, and abundance between April 2002 and November 2003 in the Sierra San Luis, Sonora. We utilized transects to determine spoor presence, camera traps for abundance, and scat analysis. During 2002, bears fed principally on plant material, and for 2003 on animal matter, namely livestock. Habitat use differed...

Una aproximación al poema “Arte Poética” de Jorge Luis Borges

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Lorena Chaves Salgado

2013-01-01

Full Text Available Este artículo presenta una lectura del poema 'Arte poética' de Jorge Luis Borges desarrollando aspectos teóricos relacionados con el análisis poético. El poema describe la labor del poeta y que significa escribir poesía, entendido para Borges como un acto y proceso creativo.

Una aproximación al poema “Arte Poética” de Jorge Luis Borges

Directory of Open Access Journals (Sweden)

Lorena Chaves Salgado

2013-01-01

Full Text Available Este artículo presenta una lectura del poema 'Arte poética' de Jorge Luis Borges desarrollando aspectos teóricos relacionados con el análisis poético. El poema describe la labor del poeta y qué significa escribir poesía, entendido para Borges como un acto y proceso creativo.

Video games and surgical ability: a literature review.

Science.gov (United States)

Lynch, Jeremy; Aughwane, Paul; Hammond, Toby M

2010-01-01

Surgical training is rapidly evolving because of reduced training hours and the reduction of training opportunities due to patient safety concerns. There is a popular conception that video game usage might be linked to improved operating ability especially those techniques involving endoscopic modalities. If true this might suggest future directions for training. A search was made of the MEDLINE databases for the MeSH term, "Video Games," combined with the terms "Surgical Procedures, Operative," "Endoscopy," "Robotics," "Education," "Learning," "Simulators," "Computer Simulation," "Psychomotor Performance," and "Surgery, Computer-Assisted,"encompassing all journal articles before November 2009. References of articles were searched for further studies. Twelve relevant journal articles were discovered. Video game usage has been studied in relationship to laparoscopic, gastrointestinal endoscopic, endovascular, and robotic surgery. Video game users acquire endoscopic but not robotic techniques quicker, and training on video games appears to improve performance. Copyright (c) 2010 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

More than Meets the Eye: Adult Education for Critical Consciousness in Luis Camnitzer's Art

Science.gov (United States)

Zorrilla, Ana Carlina

2012-01-01

The purpose of this study was to explore the connection between art and adult education for critical consciousness through the conceptual art of Luis Camnitzer. The theoretical framework grounding this research was critical public pedagogy, influenced by both critical theory and Stuart Hall's systems of representation (1997). This framework…

Rating the quality of the landscape of Sierra de las Quijadas National Park, Province of San Luis, Argentina

International Nuclear Information System (INIS)

Maero, I.; Rivarola, D.; Tognelli, G.

2007-01-01

The National Park Sierra de las Quijadas is located to 120 km to the northwest of the Province of San Luis, Argentina. The study area is of 24,000 hectares, that correspond to 32 % of the total surface, this surface covers the totality with the Potrero de la Aguada and the next zones, the same one was selected because it conforms at the present time the zone of greater frequency of visitors within the Park. The objective of this work is centered in the obtaining of the Total Quality of the Landscape, having compared the demand of beauty to the rest of the other natural resources, to be able to make proposals to improve the Plan of Handling that takes ahead the Administration of National Parks. The used Methodology is the described one by Cendrero et. al. (1987), it is an indirect valuation that is carried out through the components of the landscape and allows to determine the Intrinsic Visual Quality and the Fragility of each one of the Environmental Units in which the park is divided. This analysis allowed to determine 2 Total Qualities of Landscape, that have been mapped using aerial photography equipment and materials and SIG, with field control. This investigation is developed within the Project of Investigation Geology of the Neogeno and Cuaternario of the Mountain range of San Luis, Faculty of Sciences Physical, Mathematics and Natural - National University of San Luis, Argentina. (author)

Las dos Celamas de Luis Mateo Díez: recuerdo y olvido

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Oscar Bazán Rodríguez

2015-02-01

Full Text Available El artículo reflexiona sobre el tratamiento del espacio en la trilogía de Luis Mateo Díez, El reino de Celama. Con un diverso aporte teórico y crítico explica la relación intrínseca que ocurre entre el espacio y sus habitantes en la obra, y postula que implícitamente hay una separación entre dos Celamas que, a pesar de ocupar un mismo espacio, son distintas en el tiempo, y se corresponden con los valores del recuerdo (luz y del olvido (oscuridad.

Yacimientos de Celestina en la Plataforma Valles-San Luis Potosí

OpenAIRE

Rocha Rocha, Macario

2008-01-01

En la zona de estudio, la Plataforma Valles-San Luis Potosí (PVSLP), existen depósitos de celestina; las características geotectónicas de la zona, hacen pensar que estos depósitos se asocian con evaporitas del Jurásico Superior-Cretácico Inferior. La mineralización de celestina arma en la Formación El Abra y en menor grado la Formación Indidura, en forma de vetas, mantos, zonas de brecha y cuerpos irregulares. La mineralogía consiste básicamente de celestina y algunos minerales...

Reviewing Instructional Studies Conducted Using Video Modeling to Children with Autism

Science.gov (United States)

Acar, Cimen; Diken, Ibrahim H.

2012-01-01

This study explored 31 instructional research articles written using video modeling to children with autism and published in peer-reviewed journals. The studies in this research have been reached by searching EBSCO, Academic Search Complete, ERIC and other Anadolu University online search engines and using keywords such as "autism, video modeling,…

Applicability of Existing Objective Metrics of Perceptual Quality for Adaptive Video Streaming

DEFF Research Database (Denmark)

Søgaard, Jacob; Krasula, Lukás; Shahid, Muhammad

2016-01-01

Objective video quality metrics are designed to estimate the quality of experience of the end user. However, these objective metrics are usually validated with video streams degraded under common distortion types. In the presented work, we analyze the performance of published and known full......-reference and noreference quality metrics in estimating the perceived quality of adaptive bit-rate video streams knowingly out of scope. Experimental results indicate not surprisingly that state of the art objective quality metrics overlook the perceived degradations in the adaptive video streams and perform poorly...

Uranium series isotopes concentration in sediments at San Marcos and Luis L. Leon reservoirs, Chihuahua, Mexico

Energy Technology Data Exchange (ETDEWEB)

Méndez-García, C.; Montero-Cabrera, M. E., E-mail: elena.montero@cimav.edu.mx [Centro de Investigación en Materiales Avanzados, CIMAV, Miguel de Cervantes 120, 31109, Chihuahua, Chihuahua (Mexico); Renteria-Villalobos, M. [Facultad de Zootecnia y Ecología Universidad Autónoma de Chihuahua, Periferico Francisco R. Almada Km 1, 31410, Chihuahua (Mexico); García-Tenorio, R. [Applied Nuclear Physics Group, University of Seville, ETS Arquitectura, Avda. Reina Mercedes s/n, 41012 Seville (Spain)

2008-01-01

Spatial and temporal distribution of the radioisotopes concentrations were determined in sediments near the surface and core samples extracted from two reservoirs located in an arid region close to Chihuahua City, Mexico. At San Marcos reservoir one core was studied, while from Luis L. Leon reservoir one core from the entrance and another one close to the wall were investigated. ²³²Th-series, ²³⁸U-series, ⁴⁰K and ¹³⁷Cs activity concentrations (AC, Bq kg⁻¹) were determined by gamma spectrometry with a high purity Ge detector. ²³⁸U and ²³⁴U ACs were obtained by liquid scintillation and alpha spectrometry with a surface barrier detector. Dating of core sediments was performed applying CRS method to ²¹⁰Pb activities. Results were verified by ¹³⁷Cs AC. Resulting activity concentrations were compared among corresponding surface and core sediments. High ²³⁸U-series AC values were found in sediments from San Marcos reservoir, because this site is located close to the Victorino uranium deposit. Low AC values found in Luis L. Leon reservoir suggest that the uranium present in the source of the Sacramento – Chuviscar Rivers is not transported up to the Conchos River. Activity ratios (AR) ²³⁴U/²³⁸U and ²³⁸U/²²⁶Ra in sediments have values between 0.9–1.2, showing a behavior close to radioactive equilibrium in the entire basin. ²³²Th/²³⁸U, ²²⁸Ra/²²⁶Ra ARs are witnesses of the different geological origin of sediments from San Marcos and Luis L. Leon reservoirs.

Jorge Luis Borges y Wilhem Ostwald. Notas para una alianza entre la ciencia y las humanidades

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Lothar Beyer

2011-05-01

Full Text Available Jorge Luis Borges (1899-1986 de nacionalidad argentina, fue escritor, poeta y filósofo de fama mundial. Wilhelm Ostwald (1853-1932, de nacionalidad alemana, fue uno de los fundadores de la físicoquímica.También fue filósofo, pintor y premio Nobel de Química (1909. Los dos hombres enriquecieron el diálogo entre ciencia y humanidades gracias a sus obras y sus discursos, a pesar de que nunca se conocieron personalmente.Un simposio en la ciudad de Leipzig, en cuya universidad Wilhelm Ostwald se desempeñó durante 20 años como catedrático principal de físicoquímica, realizado en octubre de 2001, tenía el título: «Jorge Luis Borges. Ciencia y filosofía». A ese simposio el autor de este artículo contribuyó con una conferencia: «Ciencias y humanidades en diálogoconstructivo» dictada en presencia de la viuda María Kodama de Borges.

Inquérito soro-epidemiológico na Ilha de São Luis durante epidemia de dengue no Maranhão Seroepidemiologic survey in São Luis Island, State of Maranhão, Brazil, during a dengue fever epidemics

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Pedro Fernando da C. Vasconcelos

1999-04-01

Full Text Available Nos anos de 1995 e 1996, ocorreu em São Luis uma epidemia de dengue (DEN, causada pelo sorotipo DEN1. Objetivando avaliar o impacto da mesma na população da grande São Luis (municípios de Paço do Lumiar - PL, São José de Ribamar - SJR e São Luis SL, realizamos um inquérito soro - epidemiológico aleatório, onde aplicamos um questionário. Os soros foram testados por inibição da hemaglutinação (IH, e os resultados, negativo e positivo (resposta primária - RP e resposta secundária - RS, foram analisados utilizando os "software's" Lotus 123, Epi-info 6.0, Excel 5.0 e STATA. Coletaram-se 1217 amostras, (101 de PL, 100 de SJR e 1016 de SL. A positividade foi: 55,4% em PL, 28% em SJR e 41,4% em SL. Destes, 505 (41,2% amostras foram positivas sendo 96 RP (7,9% e 405 RS (33,3%. Da amostra obtida, 508 soros (227 positivos foram do sexo masculino e 709 (278 positivos do feminino, não havendo diferença estatística significativa. Houve significância (p The Island of São Luis in the State of Maranhão, constituted by the municipalities of São Luis - SL (835,428 inhabitants, São José de Ribamar - SJR (60,633 inhabitants and Paço do Lumiar - PL (80,274 inhabitants, has been suffering dengue (DEN fever epidemics since 1995, caused by DEN-1. In 1996, from August through October, an aleatory sero-epidemiologic survey was carried out in order to estimate the incidence of DEN infection and to analyze other clinical and epidemiological parameters. A questionnaire was applied and serum samples were simultaneously obtained. Serum samples were tested by hemagglutination inhibition (HI. Results were analyzed using Lotus123, Epi-info 6.0, Excel 5.0 and STATA softwares. A total of 1,217 serum samples were obtained (101 of PL, 100 of SJR and 1017 of SL. The rate of DEN was 55.4% in PL, 28% in SJR and 41.4% in SL, suggesting the occurrence of 401,933 infections. No difference was seen between males and females, but infection occurred more in the

76 FR 39091 - San Luis Obispo Flood Control and Water Conservation District; Notice of Effectiveness of Surrender

Science.gov (United States)

2011-07-05

... Flood Control and Water Conservation District; Notice of Effectiveness of Surrender On October 27, 1981... \\1\\ to the San Luis Obispo Flood Control and Water Conservation District (District) for the Lopez... and Water Conservation District, 17 FERC ] 62,113 (1981). On October 24, 2005, the District filed an...

[Dr. Luis Cifuentes Delatte. Memories and teaching].

Science.gov (United States)

Pérez Albacete, Mariano

2008-12-01

With the celebration of the centenary of the birth of Dr. Luis Cifuentes Delatte, due to his great scientific personality, we want to emphasize two features that, taken from his works and memories, we consider have not been emphasized enough: his role as historian of urology, both for the histories he narrated of his life experiences and the historical exposition of several pathologies, and also his teaching as professor of several generations of urologists, with the objective of trying to get to know his great human quality as he demonstrated over his life and showed in his writings. We review his books and works, lectures and published papers, in addition the news about his person we have collected from the media, and after analysis, mainly of his memories, we extract data reflecting his personality, and they way he thought and behaved. Since he was young he went with his father to the international urology meetings where he met a great number of personalities in the World of Urology; he extended his training with them, and later on they got to have a great relationship. He travelled around Europe and United States before and after Second World War, respectively, with stays in the most prestigious centers, which he described meticulously. He also reported his activity during the first two years he directed the Department of Urology at the Hospital La Princesa in Madrid and cited the series of collaborators he had. In his research works he made an ample description of historical development as introduction to the various pathologies he analyzed in depth. The reading of the narration of his trips, that he did in the convulse International time he lived, offers details which enable us to know firsthand the situation of urology and the human side of the actors he had relation with, and the social life they had, in addition to data about their families and daily life. As a researcher in transcendental chapters in urological pathology we emphasize his historical

VideoSET: Video Summary Evaluation through Text

OpenAIRE

Yeung, Serena; Fathi, Alireza; Fei-Fei, Li

2014-01-01

In this paper we present VideoSET, a method for Video Summary Evaluation through Text that can evaluate how well a video summary is able to retain the semantic information contained in its original video. We observe that semantics is most easily expressed in words, and develop a text-based approach for the evaluation. Given a video summary, a text representation of the video summary is first generated, and an NLP-based metric is then used to measure its semantic distance to ground-truth text ...

Transient Electromagnetic Soundings Near Great Sand Dunes National Park and Preserve, San Luis Valley, Colorado (2006 Field Season)

Science.gov (United States)

Fitterman, David V.; de Sozua Filho, Oderson A.

2009-01-01

Time-domain electromagnetic (TEM) soundings were made near Great Sand Dunes National Park and Preserve in the San Luis Valley of southern Colorado to obtain subsurface information of use to hydrologic modeling. Seventeen soundings were made to the east and north of the sand dunes. Using a small loop TEM system, maximum exploration depths of about 75 to 150 m were obtained. In general, layered earth interpretations of the data found that resistivity decreases with depth. Comparison of soundings with geologic logs from nearby wells found that zones logged as having increased clay content usually corresponded with a significant resistivity decrease in the TEM determined model. This result supports the use of TEM soundings to map the location of the top of the clay unit deposited at the bottom of the ancient Lake Alamosa that filled the San Luis Valley from Pliocene to middle Pleistocene time.

Video material and epilepsy.

Science.gov (United States)

Harding, G F; Jeavons, P M; Edson, A S

1994-01-01

Nine patients who had epileptic attacks while playing computer games were studied in the laboratory. Patients had an EEG recorded as well as their response to intermittent photic stimulation (IPS) at flash rates of 1-60 fps. In addition, pattern sensitivity was assessed in all patients by a gratings pattern. Only 2 patients had no previous history of convulsions, and only 2 had a normal basic EEG. All but 1 were sensitive to IPS, and all but 1 were pattern sensitive. Most patients were male, but although this appears to conflict with previously published literature results regarding the sex ratio in photosensitivity, it was due to the male predominance of video game usage. We compared our results with those reported in the literature. Diagnosing video game epilepsy requires performing an EEG with IPS and pattern stimulation. We propose a standard method of testing.

El satisfecho: fama y fortuna de una comedia desconocida de Luis Belmonte (El satisfecho: fame and fortune of an unknown comedy by Luis Belmonte

Directory of Open Access Journals (Sweden)

Elisa Domínguez de Paz

2014-01-01

Full Text Available Resumen: Este artículo ofrece un estudio del manuscrito autógrafo de la comedia, El satisfecho, firmado por el dramaturgo Luis Belmonte en Sevilla, el 24 de Julio de 1634. El documento proporciona buena información acerca de su recorrido por el tiempo, desde que obtiene la licencia de representación en Lisboa, en 1639, hasta que aparece en Toro, en 1653, como propiedad de Santiago Manteca. El manuscrito resulta muy interesante por la gran cantidad de probationes pennae, de contenido variado y ajeno al asunto teatral, que contiene. Estos ejercicios de escritura, salidos todos ellos de la pluma de Santiago Manteca, revelan que el escribano es un hombre preocupado por el mundo documental y formulístico. Su poco interés por conservar limpio el documento indica, por un lado, que , tal vez, la comedia ya no tenía éxito y, por otro lado, la más que probable desconexión de Manteca del mundo teatral.Abstract: This article studies an autographic manuscript of the comedy, El satisfecho, signed by the playwright Luis Belmonte in Seville, on July 24 1634. The document provides sound information about its journey through time, from the moment when it obtained its representation permit in Lisbon, in 1639, until it appeared in Toro, property of Santiago Manteca. The interest of the manuscript is very high due to the great number of probationes pennae that it contains, of very varied content and unrelated to the world of theatre. These writing exercises, coming out of Santiago Manteca’s pen, reveal that the secretary was a man concerned about the documental and formulaic world. His lack of interest in keeping the document clean may indicate, on the one hand, that the comedy was not successful any more, and, on the other, Manteca’s likely disconnection from the theatrical world.

Concerns of Quality and Safety in Public Domain Surgical Education Videos: An Assessment of the Critical View of Safety in Frequently Used Laparoscopic Cholecystectomy Videos.

Science.gov (United States)

Deal, Shanley B; Alseidi, Adnan A

2017-12-01

Online videos are among the most common resources for case preparation. Using crowd sourcing, we evaluated the relationship between operative quality and viewing characteristics of online laparoscopic cholecystectomy videos. We edited 160 online videos of laparoscopic cholecystectomy to 60 seconds or less. Crowd workers (CW) rated videos using Global Objective Assessment of Laparoscopic Skills (GOALS), the critical view of safety (CVS) criteria, and assigned overall pass/fail ratings if CVS was achieved; linear mixed effects models derived average ratings. Views, likes, dislikes, subscribers, and country were recorded for subset analysis of YouTube videos. Spearman correlation coefficient (SCC) assessed correlation between performance measures. One video (0.06%) achieved a passing CVS score of ≥5; 23%, ≥4; 44%, ≥3; 79%, ≥2; and 100% ≥1. Pass/fail ratings correlated to CVS, SCC 0.95 (p quality. The average CVS and GOALS scores were no different for videos with >20,000 views (22%) compared with those with online surgical videos of LC. Favorable characteristics, such as number of views or likes, do not translate to higher quality. Copyright © 2017 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

Mineralogical characterization of historical portuguese wall tiles of Sao Luis, Maranhao, Brazil

International Nuclear Information System (INIS)

Rivas Mercury, J.M.; Vasconcelos, N.S.L.S.; Cabral, A.A.; Pereira, D.J. Costa; Angelica, R.S.

2010-01-01

Portuguese wall tiles from centuries, XVII, XVIII and XIX, found in Sao Luis Maranhao has been studied by X-ray diffraction, in order to interpret the possible raw material and burning temperature. The mineral phases, Quartz, Wollastonite, Calcite and Gehlenite were identified in all samples. Based on the results it is possible to affirm that the main raw materials used to manufacture this materials was probably mixtures of kaolinite clay and calcite. Based on the mineralogical information it was also possible to state that burning temperature of this wall tiles was lower than 1000 deg C. (author)

A propósito de José Luis Brea: del archivo a la RAM

Directory of Open Access Journals (Sweden)

Fernando Broncano

2014-06-01

Full Text Available The philosopher José Luis Brea proposes a notion of memory spread around a network of connections, which reveals a conception of culture based on a RAM structure and contrary to the culture of archive. The underwent changes in the classification of disciplines caused by individual’s attitudes deriving from the new media hyperconnectivity environment will be reviewed here and the relevance in the present humanities of concepts such as exile, frontier and question without answer.

The benefits of being a video gamer in laparoscopic surgery.

Science.gov (United States)

Sammut, Matthew; Sammut, Mark; Andrejevic, Predrag

2017-09-01

Video games are mainly considered to be of entertainment value in our society. Laparoscopic surgery and video games are activities similarly requiring eye-hand and visual-spatial skills. Previous studies have not conclusively shown a positive correlation between video game experience and improved ability to accomplish visual-spatial tasks in laparoscopic surgery. This study was an attempt to investigate this relationship. The aim of the study was to investigate whether previous video gaming experience affects the baseline performance on a laparoscopic simulator trainer. Newly qualified medical officers with minimal experience in laparoscopic surgery were invited to participate in the study and assigned to the following groups: gamers (n = 20) and non-gamers (n = 20). Analysis included participants' demographic data and baseline video gaming experience. Laparoscopic skills were assessed using a laparoscopic simulator trainer. There were no significant demographic differences between the two groups. Each participant performed three laparoscopic tasks and mean scores between the two groups were compared. The gamer group had statistically significant better results in maintaining the laparoscopic camera horizon ± 15° (p value = 0.009), in the complex ball manipulation accuracy rates (p value = 0.024) and completed the complex laparoscopic simulator task in a significantly shorter time period (p value = 0.001). Although prior video gaming experience correlated with better results, there were no significant differences for camera accuracy rates (p value = 0.074) and in a two-handed laparoscopic exercise task accuracy rates (p value = 0.092). The results show that previous video-gaming experience improved the baseline performance in laparoscopic simulator skills. Copyright © 2017 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

Emma Zunz by Jorge Luis Borges: the Concept of Justice

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Rosa Vila

2014-12-01

Full Text Available Emma Zunz, by Jorge Luis Borges, is the story of a girl who decides to kill her boss in order to avenge her father’s death, believing that her father’s version of an event that occurred years before was true. Thus, she devises a secret plan, which includes losing her virginity to a complete stranger, shortly before committing the crime, so she could argue that her boss had raped her and that she killed him in self-defense. Firstly, the text shows the contrast between formal justice and taking justice into own hands. Secondly, the question of self-inflicted punishment, which in the story takes place before the perpetration of the crime. Finally, the issue whether truth is the version that can be inferred from the evidence presented in a trial, or the one which is kept to themselves by those involved in a crime. Emma Zunz, de Jorge Luis Borges, es la historia de una chica que decide matar a su jefe para vengar la muerte de su padre, creyendo que la versión de su padre de un hecho que ocurrió años atrás era cierta. De este modo, diseña un plan secreto, que incluye la pérdida de su virginidad con un desconocido, poco antes de cometer el crimen, para poder argumentar que su jefe la había violado y que ella lo mató en defensa propia. En primer lugar, el texto muestra el contraste entre la justicia formal y la justicia por cuenta propia. En segundo lugar, la cuestión de la pena infligida a uno mismo, lo que en la historia se produce antes de la comisión del delito. Por último, la cuestión de si la verdad es la versión que se puede inferir de las pruebas presentadas en un juicio, o la que se guardan para sí mismas las personas involucradas en un crimen. DOWNLOAD THIS PAPER FROM SSRN: http://ssrn.com/abstract=2519490

Content-based video retrieval by example video clip

Science.gov (United States)

Dimitrova, Nevenka; Abdel-Mottaleb, Mohamed

1997-01-01

This paper presents a novel approach for video retrieval from a large archive of MPEG or Motion JPEG compressed video clips. We introduce a retrieval algorithm that takes a video clip as a query and searches the database for clips with similar contents. Video clips are characterized by a sequence of representative frame signatures, which are constructed from DC coefficients and motion information (`DC+M' signatures). The similarity between two video clips is determined by using their respective signatures. This method facilitates retrieval of clips for the purpose of video editing, broadcast news retrieval, or copyright violation detection.

Las políticas forestales en el estado de San Luis Potosí en el porfiriato

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Julio César Errejón Gómez

2017-04-01

Full Text Available Las acciones y omisiones del presente en materia de política forestal pueden clarificarse si se revisan los antecedentes históricos. Por ello, el objetivo de esta investigación fue analizar la influencia del contexto internacional sobre las políticas forestales implementadas durante el régimen de Porfirio Díaz. Se amplía el panorama sobre las de uso y conservación de los bosques, así como sus repercusiones en San Luis Potosí. Para contextualizar los procesos mencionados, se realizó una consulta exhaustiva de documentos históricos y bibliográficos, y se encontró que el entorno internacional incentivó la creación de leyes e instituciones federales y locales para regular la explotación, el manejo y la conservación de los bosques. A pesar de ello, en esta entidad hubo una reducción importante en sus superficies boscosas; además, el gobierno federal y estatal no evidenció un interés por preservarlas. _______________ Current actions and omissions in forest policy can be clarified if the historical background is reviewed. Therefore, the objective of this research is to analyze the influence of the international context on forest policies implemented during the regime of Porfirio Diaz (1876-1911. In particular, it aims to broaden the outlook on government policies created for the management, use and conservation of forests and their impacts on San Luis Potosi. A thorough consultation of historical and bibliographical documents was made to understand the historical processes. It was found that the international environment encouraged the creation of laws, regulations and federal and local institutions for the purpose of regulating the exploitation, management and conservation of forests. However, the state of San Luis Potosi experienced a significant reduction in their forest areas; in addition, the federal and state governments showed no interest in applying conservation of forests in Potosi territory.

A bibliometric analysis of the scientific literature on Internet, video games, and cell phone addiction.

Science.gov (United States)

Carbonell, Xavier; Guardiola, Elena; Beranuy, Marta; Bellés, Ana

2009-04-01

The aim of this study was to locate the scientific literature dealing with addiction to the Internet, video games, and cell phones and to characterize the pattern of publications in these areas. One hundred seventy-nine valid articles were retrieved from PubMed and PsycINFO between 1996 and 2005 related to pathological Internet, cell phone, or video game use. The years with the highest numbers of articles published were 2004 (n = 42) and 2005 (n = 40). The most productive countries, in terms of number of articles published, were the United States (n = 52), China (n = 23), the United Kingdom (n = 17), Taiwan (n = 13), and South Korea (n = 9). The most commonly used language was English (65.4%), followed by Chinese (12.8%) and Spanish (4.5%). Articles were published in 96 different journals, of which 22 published 2 or more articles. The journal that published the most articles was Cyberpsychology & Behavior (n = 41). Addiction to the Internet was the most intensely studied (85.3%), followed by addiction to video games (13.6%) and cell phones (2.1%). The number of publications in this area is growing, but it is difficult to conduct precise searches due to a lack of clear terminology. To facilitate retrieval, bibliographic databases should include descriptor terms referring specifically to Internet, video games, and cell phone addiction as well as to more general addictions involving communications and information technologies and other behavioral addictions.

Immersive video

Science.gov (United States)

Moezzi, Saied; Katkere, Arun L.; Jain, Ramesh C.

1996-03-01

Interactive video and television viewers should have the power to control their viewing position. To make this a reality, we introduce the concept of Immersive Video, which employs computer vision and computer graphics technologies to provide remote users a sense of complete immersion when viewing an event. Immersive Video uses multiple videos of an event, captured from different perspectives, to generate a full 3D digital video of that event. That is accomplished by assimilating important information from each video stream into a comprehensive, dynamic, 3D model of the environment. Using this 3D digital video, interactive viewers can then move around the remote environment and observe the events taking place from any desired perspective. Our Immersive Video System currently provides interactive viewing and `walkthrus' of staged karate demonstrations, basketball games, dance performances, and typical campus scenes. In its full realization, Immersive Video will be a paradigm shift in visual communication which will revolutionize television and video media, and become an integral part of future telepresence and virtual reality systems.

The Fan Effect Co-production, Communication & Dispute Between Digital Game Fans, Developers and Publishers

OpenAIRE

Jalamo, Tuomas

2016-01-01

This study analyses the relationship between video game fans, developers and publishers. The topic is approached via a case study that explores online fan reviews of the video game Mass Effect 3 at the Metacritic website. The game had a controversial ending, which was posthumously altered due to negative feedback from the fans. The study seeks to understand the ways in which the case study reflects the issues between the fans and the industry and how these themes are related to the wider disc...

An Analysis of Research Trends in Articles on Video Usage in Medical Education

Science.gov (United States)

Taslibeyaz, Elif; Aydemir, Melike; Karaman, Selcuk

2017-01-01

Using technology in medical education has drawn the attention of researchers in the last several years. Especially, videos have been found to promote effective learning in medical education. This study aims to examine general trends and results of articles investigating video usage in medical education and published in SSCI and ERIC journals from…

Training value of laparoscopic colorectal videos on the World Wide Web: a pilot study on the educational quality of laparoscopic right hemicolectomy videos.

Science.gov (United States)

Celentano, V; Browning, M; Hitchins, C; Giglio, M C; Coleman, M G

2017-11-01

Instructive laparoscopy videos with appropriate exposition could be ideal for initial training in laparoscopic surgery, but unfortunately there are no guidelines for annotating these videos or agreed methods to measure the educational content and the safety of the procedure presented. Aim of this study is to systematically search the World Wide Web to determine the availability of laparoscopic colorectal surgery videos and to objectively establish their potential training value. A search for laparoscopic right hemicolectomy videos was performed on the three most used English language web search engines Google.com, Bing.com, and Yahoo.com; moreover, a survey among 25 local trainees was performed to identify additional websites for inclusion. All laparoscopic right hemicolectomy videos with an English language title were included. Videos of open surgery, single incision laparoscopic surgery, robotic, and hand-assisted surgery were excluded. The safety of the demonstrated procedure was assessed with a validated competency assessment tool specifically designed for laparoscopic colorectal surgery and data on the educational content of the video were extracted. Thirty-one websites were identified and 182 surgical videos were included. One hundred and seventy-three videos (95%) detailed the year of publication; this demonstrated a significant increase in the number of videos published per year from 2009. Characteristics of the patient were rarely presented, only 10 videos (5.4%) reported operating time and only 6 videos (3.2%) reported 30-day morbidity; 34 videos (18.6%) underwent a peer-review process prior to publication. Formal case presentation, the presence of audio narration, the use of diagrams, and snapshots and a step-by-step approach are all characteristics of peer-reviewed videos but no significant difference was found in the safety of the procedure. Laparoscopic videos can be a useful adjunct to operative training. There is a large and increasing amount of

Diagnóstico etiológico de la ceguera de Jorge Luis Borges basado en su obra literaria

Directory of Open Access Journals (Sweden)

Mario Enrique de la Piedra Walter

2017-07-01

Conclusiones: Pese a que la miopía degenerativa es la etiología más probable de la ceguera de Jorge Luis Borges, no es posible descartar por completo otras oftalmopatías sin una exploración física adecuada. Se cumple el objetivo solo en el marco presuntivo.

OS VINHOS DE MÚRCIA: CONTRIBUTO DE JOSÉ LUIS ANDRÉS SARASA

Directory of Open Access Journals (Sweden)

Victor Dordio

2011-01-01

Full Text Available José Luis Andrés Sarasa y su equipo de investigadores de la Universidad de Murcia hizo un excelente análisis estructural de la producción de vino en la Región de Murcia en el marco del proyecto «Filières Innovantes» (2002-2005. Los temas del espacio y tiempo, la tipología de los productores, bajo la óptica del savoir-faire, han sido minuciosamente estudiados y presentados. Nuestra contribución a este estudio consistió en un capítulo sobre el turismo del vino, que no se trató anteriormente debido a la falta de tiempo.

Introduction to the Special Collection of Papers on the San Luis Basin Sustainability Metrics Project: A Methodology for Evaluating Regional Sustainability

Science.gov (United States)

This paper introduces a collection of four articles describing the San Luis Basin Sustainability Metrics Project. The Project developed a methodology for evaluating regional sustainability. This introduction provides the necessary background information for the project, descripti...

Video demystified

CERN Document Server

Jack, Keith

2004-01-01

This international bestseller and essential reference is the "bible" for digital video engineers and programmers worldwide. This is by far the most informative analog and digital video reference available, includes the hottest new trends and cutting-edge developments in the field. Video Demystified, Fourth Edition is a "one stop" reference guide for the various digital video technologies. The fourth edition is completely updated with all new chapters on MPEG-4, H.264, SDTV/HDTV, ATSC/DVB, and Streaming Video (Video over DSL, Ethernet, etc.), as well as discussions of the latest standards throughout. The accompanying CD-ROM is updated to include a unique set of video test files in the newest formats. *This essential reference is the "bible" for digital video engineers and programmers worldwide *Contains all new chapters on MPEG-4, H.264, SDTV/HDTV, ATSC/DVB, and Streaming Video *Completely revised with all the latest and most up-to-date industry standards.

Video pedagogy

OpenAIRE

Länsitie, Janne; Stevenson, Blair; Männistö, Riku; Karjalainen, Tommi; Karjalainen, Asko

2016-01-01

The short film is an introduction to the concept of video pedagogy. The five categories of video pedagogy further elaborate how videos can be used as a part of instruction and learning process. Most pedagogical videos represent more than one category. A video itself doesn’t necessarily define the category – the ways in which the video is used as a part of pedagogical script are more defining factors. What five categories did you find? Did you agree with the categories, or are more...

Why don't end-of-life conversations go viral? A review of videos on YouTube.

Science.gov (United States)

Mitchell, Imogen A; Schuster, Anne L R; Lynch, Thomas; Smith, Katherine Clegg; Bridges, John F P; Aslakson, Rebecca A

2017-06-01

To identify videos on YouTube concerning advance care planning (ACP) and synthesise existing video content and style elements. Informed by stakeholder engagement, two researchers searched YouTube for ACP videos using predefined search terms and snowballing techniques. Videos identified were reviewed and deemed ineligible for analysis if they: targeted healthcare professionals; contained irrelevant content; focused on viewers under the age of 18; were longer than 7 min in duration; received fewer than 150 views; were in a language other than English; or were a duplicate version. For each video, two investigators independently extracted general information as well as video content and stylistic characteristics. The YouTube search identified 23 100 videos with 213 retrieved for assessment and 42 meeting eligibility criteria. The majority of videos had been posted to YouTube since 2010 and produced by organisations in the USA (71%). Viewership ranged from 171 to 10 642. Most videos used a documentary style and featured healthcare providers (60%) rather than patients (19%) or families (45%). A minority of videos (29%) used upbeat or hopeful music. The videos frequently focused on completing legal medical documents (86%). None of the ACP videos on YouTube went viral and a relatively small number of them contained elements endorsed by stakeholders. In emphasising the completion of legal medical documents, videos may have failed to support more meaningful ACP. Further research is needed to understand the features of videos that will engage patients and the wider community with ACP and palliative and end-of-life care conversations. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Defining the cognitive enhancing properties of video games: Steps Towards Standardization and Translation.

Science.gov (United States)

Goodwin, Shikha Jain; Dziobek, Derek

2016-09-01

Ever since video games were available to the general public, they have intrigued brain researchers for many reasons. There is an enormous amount of diversity in the video game research, ranging from types of video games used, the amount of time spent playing video games, the definition of video gamer versus non-gamer to the results obtained after playing video games. In this paper, our goal is to provide a critical discussion of these issues, along with some steps towards generalization using the discussion of an article published by Clemenson and Stark (2005) as the starting point. The authors used a distinction between 2D versus 3D video games to compare their effects on the learning and memory in humans. The primary hypothesis of the authors is that the exploration of virtual environments while playing video games is a human correlate of environment enrichment. Authors found that video gamers performed better than the non-video gamers, and if non-gamers are trained on playing video gamers, 3D games provide better environment enrichment compared to 2D video games, as indicated by better memory scores. The end goal of standardization in video games is to be able to translate the field so that the results can be used for greater good.

Hydrogeologic Assessment of the East Bear Creek Unit, San LuisNational Wildlife Refuge

Energy Technology Data Exchange (ETDEWEB)

Quinn, Nigel W.T.

2007-07-15

San Luis National Wildlife Refuge Complex to meetReclamation s obligations for Level 4 water supply under the CentralValley Project Improvement Act. Hydrogeological assessment of the EastBear Creek Unit of the San Luis National Wildlife Refuge was conductedusing a combination of field investigations and a survey of availableliterature from past US Geological Survey Reports and reports by localgeological consultants. Conservative safe yield estimates made using theavailable data show that the East Bear Creek Unit may have sufficientgroundwater resources in the shallow groundwater aquifer to meet aboutbetween 25 percent and 52 percent of its current Level II and between 17percent and 35 percent of its level IV water supply needs. The rate ofsurface and lateral recharge to the Unit and the design of the well fieldand the layout and capacity of pumped wells will decide both thepercentage of annual needs that the shallow aquifer can supply andwhether this yield is sustainable without affecting long-term aquiferquality. In order to further investigate the merits of pumping the nearsurface aquifer, which appears to have reasonable water quality for usewithin the East Bear Creek Unit -- monitoring of the potential sources ofaquifer recharge and the installation of a pilot shallow well would bewarranted. Simple monitoring stations could be installed both upstreamand downstream of both the San Joaquin River and Bear Creek and beinstrumented to measureriver stage, flow and electrical conductivity.Ideally this would be done in conjunction with a shallow pilot well,pumped to supply a portion of the Unit's needs for the wetland inundationperiod.

El basamento de la sierra de San Luis: Nuevas evidencias magnéticas y sus implicancias tectónicas The basement of Sierra de San Luis: New magnetic evidence and tectonic implication

OpenAIRE

CJ Chernicoff; VA Ramos

2003-01-01

Los mapas aeromagnéticos disponibles de las sierras de San Luis y Comechingones en el sector sudoriental de las Sierras Pampeanas de Argentina, permiten examinar las características geológicas y estructurales de las unidades metamórficas e intrusivas del basamento de la región. A través de la aplicación del filtro de continuación ascendente a los datos del campo magnético total reducido al polo, se ha podido observar la configuración profunda de las distintas unidades. Entre ellas se destaca ...

76 FR 414 - Tier 1 Environmental Impact Statement for the Los Angeles to San Luis Obispo (LOSSAN North) Rail...

Science.gov (United States)

2011-01-04

... expected growth in population and resulting increases in intercity travel demand between Los Angeles and San Luis Obispo. As a result of this growth in travel demand, their travel delays from the growing... environmental analysis to help make corridor level decisions regarding the level of intercity passenger rail...

Real-Time Water Quality Monitoring and Habitat Assessment in the San Luis National Wildlife Refuge

OpenAIRE

Quinn, Nigel W.T.; Hanlon, Jeremy S.; Burns, Josephine R.; Stromayer, Karl A.K.; Jordan, Brandon M.; Ennis, Mike J.; Woolington, Dennis W.

2005-01-01

The project report describes a two year experiment to control wetland drainage to the San Joaquin River of California from the San Luis National Wildlife Refuge using a decision support system for real-time water quality management. This system required the installation and operation of one inlet and three drainage flow and water quality monitoring stations which allowed a simnple mass balance model to be developed of the seasonally managed wetlands in the study area. Remote sensing meth...

Video microblogging

DEFF Research Database (Denmark)

Bornoe, Nis; Barkhuus, Louise

2010-01-01

Microblogging is a recently popular phenomenon and with the increasing trend for video cameras to be built into mobile phones, a new type of microblogging has entered the arena of electronic communication: video microblogging. In this study we examine video microblogging, which is the broadcasting...... of short videos. A series of semi-structured interviews offers an understanding of why and how video microblogging is used and what the users post and broadcast....

Disseminating Evidence-Based Physical Education Practices in Rural Schools: The San Luis Valley Physical Education Academy.

Science.gov (United States)

Belansky, Elaine S; Cutforth, Nick; Kern, Ben; Scarbro, Sharon

2016-09-01

To address childhood obesity, strategies are needed to maximize physical activity during the school day. The San Luis Valley Physical Education Academy was a public health intervention designed to increase the quality of physical education and quantity of moderate to vigorous physical activity (MVPA) during physical education class. Elementary school physical education teachers from 17 schools participated in the intervention. They received SPARK curriculum and equipment, workshops, and site coordinator support for 2 years. A pre/post/post within physical education teacher design was used to measure intervention effectiveness. System for Observing Fitness Instruction Time (SOFIT) and a physical education teacher survey were collected 3 times. MVPA increased from 51.1% to 67.3% over the 2-year intervention resulting in approximately 14.6 additional hours of physical activity over a school year and 4662 kcal or 1.33 lbs. of weight gain prevention. More time was spent on skill drills and less time on classroom management and free play. The San Luis Valley Physical Education Academy succeeded in increasing rural, low-income students' physical activity. The multicomponent intervention contributed to the program's success. However, cost-effective approaches are needed to disseminate and implement evidencebased practices aimed at increasing students' physical activity during the school day.

Organ donation video messaging: differential appeal, emotional valence, and behavioral intention.

Science.gov (United States)

Rodrigue, J R; Fleishman, A; Vishnevsky, T; Fitzpatrick, S; Boger, M

2014-10-01

Video narratives increasingly are used to draw the public's attention to the need for more registered organ donors. We assessed the differential impact of donation messaging videos on appeal, emotional valence, and organ donation intentions in 781 non-registered adults. Participants watched six videos (four personal narratives, one informational video without personal narrative, and one unrelated to donation) with or without sound (subtitled), randomly sequenced to minimize order effects. We assessed appeal, emotional valence, readiness to register as organ donors, and donation information-seeking behavior. Compared to other video types, one featuring a pediatric transplant recipient (with or without sound) showed more favorable appeal (p emotional valence (p emotion (OR = 1.05, 95% CI = 1.03, 1.07, p < 0.001) were significant multivariable predictors of clicking through to the donation website. Brief, one-min videos can have a very dramatic and positive impact on willingness to consider donation and behavioral intentions to register as an organ donor. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

TECNOLOGÍA LÍTICA Y USO DIFERENCIAL DEL ESPACIO EN ESTANCIA LA SUIZA, SAN LUIS, ARGENTINA / Lithic technology and differential use of space in Estancia La Suiza, San Luis, Argentina

Directory of Open Access Journals (Sweden)

Gisela Sario

2013-07-01

Full Text Available El trabajo pretende contribuir, desde la perspectiva de la organización de la tecnología, al conocimiento de las ocupaciones cazadoras-recolectoras que habitaron las inmediaciones de la Sierra de la Estanzuela, en la provincia de San Luis, Argentina. Se explican cómo fueron las secuencias de producción de herramientas en los sitios de la localidad arqueológica Estancia La Suiza, a partir del análisis de los materiales líticos recuperados en excavación y prospecciones sistemáticas. Las metodologías propuestas para abordar este estudio corresponden al análisis nodular y más específicamente a una combinación del análisis tipológico y no tipológico. Los resultados permiten interpretar que en esta localidad hubo un uso diferencial del espacio, particularmente en dos sitios que son Estancia La Suiza 2 y Estancia La Suiza 3. Abstract This paper aims at gaining insight, from the angle of technological organization, into the hunter-gatherer communities that dwelled in the surrounding areas of Sierras de la Estanzuela, in the province of San Luis, Argentina. The sequence of tool development in the archaeological site of Estancia La Suiza is described from analysis of lithic materials from excavation and systematic surveys. The methods adopted for conducting this study form part of Minimal Nodule analysis (MANA and more specifically a combination of typological and non-typological analysis. Results indicate that this site evidences a differential use of space, more specifically found in Estancia La Suiza 2 and Estancia La Suiza 3. 

Video-Based Surgical Learning: Improving Trainee Education and Preparation for Surgery.

Science.gov (United States)

Mota, Paulo; Carvalho, Nuno; Carvalho-Dias, Emanuel; João Costa, Manuel; Correia-Pinto, Jorge; Lima, Estevão

2017-10-11

Since the end of the XIX century, teaching of surgery has remained practically unaltered until now. With the dawn of video-assisted laparoscopy, surgery has faced new technical and learning challenges. Due to technological advances, from Internet access to portable electronic devices, the use of online resources is part of the educational armamentarium. In this respect, videos have already proven to be effective and useful, however the best way to benefit from these tools is still not clearly defined. To assess the importance of video-based learning, using an electronic questionnaire applied to residents and specialists of different surgical fields. Importance of video-based learning was assessed in a sample of 141 subjects, using a questionnaire distributed by a GoogleDoc online form. We found that 98.6% of the respondents have already used videos to prepare for surgery. When comparing video sources by formation status, residents were found to use Youtube significantly more often than specialists (p learning is currently a hallmark of surgical preparation among residents and specialists working in Portugal. Based on these findings we believe that the creation of quality and scientifically accurate videos, and subsequent compilation in available video-libraries appears to be the future landscape for video-based learning. Copyright © 2017 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

PARADOXURILE CONCEPŢIEI POLITICE ÎN OPERA LUI JEAN-JACQUES ROUSSEAU

Directory of Open Access Journals (Sweden)

Alexandru MAZILU

2015-12-01

Full Text Available Ideile lui Rousseau au avut un impact major asupra societăţii la sfârşitul sec. al XVIII-lea şi pe parcursul întregii perioade a sec. al XIX-lea. Aceste idei au imprimat un suflu modern cugetului său, fiind considerat şi un ideologist politic, o voce puternică a Revoluţiei Franceze şi un pioner al curentului romantic. În legătură cu domeniul nostru de studiu, paradoxurile concepţiei politice ale lui Rousseau se referă la contradicţia dintre aspiraţiile modernităţii şi criticile violente ale progresului social. El pune accentul pe contradicţia dintre încrede-rea deplină în ,,contractul social”, ca pattern cultural şi lipsa de încredere în ,,educaţia socială”. Unicul mod de a depăşi aceste contradicţii este abordarea noului model al filosofiei educaţiei bazat pe reforme radicale pentru a facilita autodezvoltarea individului.   THE PARADOXES OF POLITICAL CONCEPTION IN THE WORK OF JEAN-JACQUES ROUSSEAUHis ideas have a big impact on the society at the end of the 18th century and the whole 19th century period. These ideas transform his spirit into a modern one, as well as a political ideologist, main voice of the French Revolution and pioneer of the Romantic Movement. Related to our article subject, Rousseau's political conceptual paradoxes refer to the contradiction between moderni-ty aspiration and the violent critic of the social progress. He emphasizes the contradiction between full trust of the "social contract", as a cultural pattern and the distrust of the "social education." The only way to leave the contradictions behind is his new education philosophy pattern based on a radical reform in order for the individual to develop himself.

Human papillomavirus type 16 variants in cervical intraepithelial neoplasia and invasive carcinoma in San Luis Potosí City, Mexico

Science.gov (United States)

López-Revilla, Rubén; Pineda, Marco A; Ortiz-Valdez, Julio; Sánchez-Garza, Mireya; Riego, Lina

2009-01-01

Background In San Luis Potosí City cervical infection by human papillomavirus type 16 (HPV16) associated to dysplastic lesions is more prevalent in younger women. In this work HPV16 subtypes and variants associated to low-grade intraepithelial lesions (LSIL), high-grade intraepithelial lesions (HSIL) and invasive cervical cancer (ICC) of 38 women residing in San Luis Potosí City were identified by comparing their E6 open reading frame sequences. Results Three European (E) variants (E-P, n = 27; E-T350G, n = 7; E-C188G, n = 2) and one AA-a variant (n = 2) were identified among the 38 HPV16 sequences analyzed. E-P variant sequences contained 23 single nucleotide changes, two of which (A334G, A404T) had not been described before and allowed the phylogenetic separation from the other variants. E-P A334G sequences were the most prevalent (22 cases, 57.9%), followed by the E-P Ref prototype (8 cases, 21.1%) and E-P A404T (1 case, 2.6%) sequences. The HSIL + ICC fraction was 0.21 for the E-P A334G variants and 0.00 for the E-P Ref variants. Conclusion We conclude that in the women included in this study the HPV16 E subtype is 19 times more frequent than the AA subtype; that the circulating E variants are E-P (71.1%) > E-T350G (18.4%) > E-C188G (5.3%); that 71.0% of the E-P sequences carry the A334G single nucleotide change and appear to correspond to a HPV16 variant characteristic of San Luis Potosi City more oncogenic than the E-P Ref prototype. PMID:19216802

Dashboard Videos

Science.gov (United States)

Gleue, Alan D.; Depcik, Chris; Peltier, Ted

2012-01-01

Last school year, I had a web link emailed to me entitled "A Dashboard Physics Lesson." The link, created and posted by Dale Basier on his "Lab Out Loud" blog, illustrates video of a car's speedometer synchronized with video of the road. These two separate video streams are compiled into one video that students can watch and analyze. After seeing…

Extensive video-game experience alters cortical networks for complex visuomotor transformations.

Science.gov (United States)

Granek, Joshua A; Gorbet, Diana J; Sergio, Lauren E

2010-10-01

Using event-related functional magnetic resonance imaging (fMRI), we examined the effect of video-game experience on the neural control of increasingly complex visuomotor tasks. Previously, skilled individuals have demonstrated the use of a more efficient movement control brain network, including the prefrontal, premotor, primary sensorimotor and parietal cortices. Our results extend and generalize this finding by documenting additional prefrontal cortex activity in experienced video gamers planning for complex eye-hand coordination tasks that are distinct from actual video-game play. These changes in activation between non-gamers and extensive gamers are putatively related to the increased online control and spatial attention required for complex visually guided reaching. These data suggest that the basic cortical network for processing complex visually guided reaching is altered by extensive video-game play. Crown Copyright © 2009. Published by Elsevier Srl. All rights reserved.

Observations on nests of Crocodylus moreletii in San Luis Potosí, Mexico Observaciones sobre nidos de Crocodylus moreletii en San Luis Potosí, México

Directory of Open Access Journals (Sweden)

Armando H. Escobedo-Galván

2011-03-01

Full Text Available Nesting ecology of Morelet's crocodile (Crocodylus moreletii has been documented since 1940. However, only 2 nests constructed on floating vegetation have been recorded. Here, we presented additional information from a mainland population of C. moreletii in the Ciénega de Cabezas wetland, San Luis Potosí, describing 2 nests constructed on floating mats of cattails. The nests were constructed using Typha sp., close to the main channel. One nest was lost due to flooding, and contained 32 eggs. Seven eggs had a mean 72.6 ± 2.63 mm length (range = 70.0 -75.0 mm, 45.0 ± 2.30 mm width (range = 41.0-48.0 mm, and 140.7 ± 2.98 mm diameter (range = 136.0-145.0 mm. We suggest that the use of floating vegetation for nesting by C. moreletii is related to the availability of aquatic vegetation, combined with the lack of adequate nesting sites on land.La ecología de anidación del cocodrilo de pantano (Crocodylus moreletii ha sido documentada desde 1940. Sin embargo, sólo existen 2 registros de nidos construidos sobre vegetación acuática. Presentamos información adicional de 2 nidos (N1 y N2 construidos en este tipo de hábitat en una población ubicada en la Ciénega de Cabezas en el estado de San Luis Potosí. Los nidos fueron construidos sobre Typha sp., cerca del cauce principal de la ciénega. El N2 se perdió por inundación, en su interior encontramos 32 huevos, los promedios (± SD del largo, ancho y diámetro de 7 huevos fueron 72.6 ± 2.63 mm (rango = 70.0 -75.0 mm, 45.0 ± 2.30 mm (rango = 41.0-48.0 mm, 140.7 ± 2.98 mm (rango = 136.0-145.0 mm, respectivamente. Sugerimos que este tipo de sitios para anidar por parte de C. moreletii está relacionado con la disponibilidad de vegetación acuática, combinado con la ausencia de sitios adecuados en tierra firme.

Missionary Pragmalinguistics: Father Diego Luis de Sanvitores’ grammar (1668) within the tradition of Philippine grammars

OpenAIRE

Winkler, A.P.

2016-01-01

The grammar written in Latin, in 1668, by the Jesuit missionary Father Diego Luis de Sanvitores (1627-1672) is the oldest description we have of Chamorro, a language spoken on the Mariana islands. The grammar received a number of bad reviews and as a consequence has become neglected and almost forgotten. The main point of criticism has been that Sanvitores used the Latin grammatical framework to explain a language that in many ways does not fit this framework. In this thesis it is argued inst...

On editing the fifth stanza of El aire se serena by fray Luis

Directory of Open Access Journals (Sweden)

Aquilino Suárez Pallasá

2011-12-01

Full Text Available Although many scholars and editors of the ode «El aire se serena» by fray Luis de León have denied or questioned the authenticity of its fifth stanza, there now seems to be a general assent to its acceptance. The reason for such a change of heart has not to do with textual criticism proper, but with literature. The sources of the ode are said to justify it. In this paper a strictly critico-textual demonstration of the authenticity of stanza 5 is proposed, placing emphasis on the cause of the diffraction displayed in the erroneous lectiones of a segment of the stanza.

Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, southern California—2017 data summary

Science.gov (United States)

Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.

2018-04-20

We surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2017. Surveys were conducted from April 13 to July 11 (LBVI) and from May 16 to July 28 (SWFL). We found 146 LBVI territories, at least 107 of which were occupied by pairs. Five additional transient LBVIs were detected. LBVIs used five different habitat types in the survey area: mixed willow, willow-cottonwood, willow-sycamore, riparian scrub, and upland scrub. Forty-four percent of the LBVIs occurred in habitat characterized as mixed willow and 89 percent of the LBVI territories occurred in areas with greater than 50 percent native plant cover. Of 16 banded LBVIs detected in the survey area, 8 had been given full color-band combinations prior to 2017. Four other LBVIs with single (natal) federal bands were recaptured and banded in 2017. Three LBVIs with single dark blue federal bands indicating that they were banded as nestlings on the lower San Luis Rey River and one LBVI with a single gold federal band indicating that it was banded as a nestling on Marine Corps Base Camp Pendleton (MCBCP) could not be recaptured for identification. One banded LBVI emigrated from the middle San Luis Rey River to the lower San Luis Rey River in 2017.One resident SWFL territory and one transient Willow Flycatcher of unknown subspecies (WIFL) were observed in the survey area in 2017. The resident SWFL territory, which was comprised of mixed willow habitat (5–50 percent native plant cover), was occupied by a single male from May 22 to June 21, 2017. No evidence of pairing or nesting activity was observed. The SWFL male was banded with a full color-combination indicating that he was originally banded as a nestling on the middle San Luis Rey River in 2014 and successfully bred in the survey area in 2016

Video game addiction, ADHD symptomatology, and video game reinforcement.

Science.gov (United States)

Mathews, Christine L; Morrell, Holly E R; Molle, Jon E

2018-06-06

Up to 23% of people who play video games report symptoms of addiction. Individuals with attention deficit hyperactivity disorder (ADHD) may be at increased risk for video game addiction, especially when playing games with more reinforcing properties. The current study tested whether level of video game reinforcement (type of game) places individuals with greater ADHD symptom severity at higher risk for developing video game addiction. Adult video game players (N = 2,801; Mean age = 22.43, SD = 4.70; 93.30% male; 82.80% Caucasian) completed an online survey. Hierarchical multiple linear regression analyses were used to test type of game, ADHD symptom severity, and the interaction between type of game and ADHD symptomatology as predictors of video game addiction severity, after controlling for age, gender, and weekly time spent playing video games. ADHD symptom severity was positively associated with increased addiction severity (b = .73 and .68, ps .05. The relationship between ADHD symptom severity and addiction severity did not depend on the type of video game played or preferred most, ps > .05. Gamers who have greater ADHD symptom severity may be at greater risk for developing symptoms of video game addiction and its negative consequences, regardless of type of video game played or preferred most. Individuals who report ADHD symptomatology and also identify as gamers may benefit from psychoeducation about the potential risk for problematic play.

El modelo ideal de interactividad es la conversación. Entrevista a José Luis Orihuela

Directory of Open Access Journals (Sweden)

Juan Salvador Victoria Mas

2012-04-01

Full Text Available José Luis Orihuela, "profesor universitario, conferenciante y bloguer" - tal y como él mismo se define-, habla sobre la interactividad como una potencia o una capacidad de los dispositivos (ordenadores y redes que actualiza o ejecuta el usuario en la medida en que inicia acciones que generan una respuesta por parte del sistema o de otros usuarios. Tras unas preguntas para adentrarnos en dicho concepto, Orihuela relaciona interactividad con diálogo y otros conceptos.

A New Destination for "The Flying Bus"?: The Implications of Orlando-Rican Migration for Luis Rafael Sanchez's "La guagua aerea"

Science.gov (United States)

Barreneche, Gabriel Ignacio; Lombardi, Jane; Ramos-Flores, Hector

2012-01-01

Puerto Rican author Luis Rafael Sanchez's "La guagua aerea" explores the duality, hybridity, and fluidity of US-Puerto Rican identity through the frequent travel of migrants between New York City (the traditional destination city for Puerto Rican migrants) and the island. In recent years, however, the "flying bus" has adopted a…

Enhancement system of nighttime infrared video image and visible video image

Science.gov (United States)

Wang, Yue; Piao, Yan

2016-11-01

Visibility of Nighttime video image has a great significance for military and medicine areas, but nighttime video image has so poor quality that we can't recognize the target and background. Thus we enhance the nighttime video image by fuse infrared video image and visible video image. According to the characteristics of infrared and visible images, we proposed improved sift algorithm andαβ weighted algorithm to fuse heterologous nighttime images. We would deduced a transfer matrix from improved sift algorithm. The transfer matrix would rapid register heterologous nighttime images. And theαβ weighted algorithm can be applied in any scene. In the video image fusion system, we used the transfer matrix to register every frame and then used αβ weighted method to fuse every frame, which reached the time requirement soft video. The fused video image not only retains the clear target information of infrared video image, but also retains the detail and color information of visible video image and the fused video image can fluency play.

SnapVideo: Personalized Video Generation for a Sightseeing Trip.

Science.gov (United States)

Zhang, Luming; Jing, Peiguang; Su, Yuting; Zhang, Chao; Shaoz, Ling

2017-11-01

Leisure tourism is an indispensable activity in urban people's life. Due to the popularity of intelligent mobile devices, a large number of photos and videos are recorded during a trip. Therefore, the ability to vividly and interestingly display these media data is a useful technique. In this paper, we propose SnapVideo, a new method that intelligently converts a personal album describing of a trip into a comprehensive, aesthetically pleasing, and coherent video clip. The proposed framework contains three main components. The scenic spot identification model first personalizes the video clips based on multiple prespecified audience classes. We then search for some auxiliary related videos from YouTube 1 according to the selected photos. To comprehensively describe a scenery, the view generation module clusters the crawled video frames into a number of views. Finally, a probabilistic model is developed to fit the frames from multiple views into an aesthetically pleasing and coherent video clip, which optimally captures the semantics of a sightseeing trip. Extensive user studies demonstrated the competitiveness of our method from an aesthetic point of view. Moreover, quantitative analysis reflects that semantically important spots are well preserved in the final video clip. 1 https://www.youtube.com/.

Self-induced stretch syncope of adolescence: a video-EEG documentation.

Science.gov (United States)

Mazzuca, Michel; Thomas, Pierre

2007-12-01

We present the first video-EEG documentation, with ECG and EMG features, of stretch syncope of adolescence in a young, healthy 16-year-old boy. Stretch syncope of adolescence is a rarely reported, benign cause of fainting in young patients, which can be confused with epileptic seizures. In our patient, syncopes were self-induced to avoid school. Dynamic transcranial Doppler showed evidence of blood flow decrease in both posterior cerebral arteries mimicking effects of a Valsalva manoeuvre. Dynamic angiogram of the vertebral arteries was normal. Hypotheses concerning the physiopathology are discussed. [Published with video sequences].

Augmented video viewing: transforming video consumption into an active experience

OpenAIRE

WIJNANTS, Maarten; Leën, Jeroen; QUAX, Peter; LAMOTTE, Wim

2014-01-01

Traditional video productions fail to cater to the interactivity standards that the current generation of digitally native customers have become accustomed to. This paper therefore advertises the \\activation" of the video consumption process. In particular, it proposes to enhance HTML5 video playback with interactive features in order to transform video viewing into a dynamic pastime. The objective is to enable the authoring of more captivating and rewarding video experiences for end-users. T...

Survey of the University "Luis Vargas Torres" through Econometric Techniques. Comprehensive Income

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Ramón Rodríguez-Betancourt

2015-12-01

Full Text Available Government Programme 2013-2017 defines in higher education, the principles of the curriculum proposals of much public interest careers. In this regard the authorities of the Technical University "Luis Vargas Torres" of Esmeraldas, have taken the decision to evaluate its management and action against the development of the province and the country. Therefore, the objective of this research is the application of a survey of students of different specialties, Faculty of Engineering and Technology to explore their views on the educational process, research, outreach, culture and sport, stratified random sampling with results showing that key processes are completed by 66% on average is applied, indicating that the authority still has to set goals to overcome the short comings that have an emphasis on research.

Superinfection between Influenza and RSV Alternating Patterns in San Luis Potosí State, México

Science.gov (United States)

Velasco-Hernández, Jorge Xicoténcatl; Núñez-López, Mayra; Comas-García, Andreu; Cherpitel, Daniel Ernesto Noyola; Ocampo, Marcos Capistrán

2015-01-01

The objective of this paper is to explain through the ecological hypothesis superinfection and competitive interaction between two viral populations and niche (host) availability, the alternating patterns of Respiratory Syncytial Virus (RSV) and influenza observed in a regional hospital in San Luis Potosí State, México using a mathematical model as a methodological tool. The data analyzed consists of community-based and hospital-based Acute Respiratory Infections (ARI) consultations provided by health-care institutions reported to the State Health Service Epidemiology Department from 2003 through 2009. PMID:25803450

Infección congénita por citomegalovirus en recién nacidos del estado de San Luis Potosí, México Congenital cytomegalovirus infection in newborn infants from the state of San Luis Potosí, Mexico

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Daniel E Noyola

2011-12-01

Full Text Available OBJETIVO: Determinar la prevalencia de infección congénita por citomegalovirus en recién nacidos participantes en el programa de tamiz neonatal de los Servicios de Salud de San Luis Potosí. MATERIAL Y MÉTODOS: Se evaluó la presencia de citomegalovirus en muestras de sangre almacenadas en papel filtro. RESULTADOS. Se detectó la presencia de citomegalovirus en 10 (0.68% de 1 457 muestras estudiadas. No se encontraron diferencias en las características de los recién nacidos con infección congénita en comparación con aquéllos sin infección. CONCLUSIONES: Es necesario concientizar a los profesionales de la salud sobre la prevalencia e impacto de la infección congénita por citomegalovirus.OBJECTIVE: To determine the prevalence of congenital cytomegalovirus infection in newborn infants included in the neonatal screening program coordinated by the State Health Services in San Luis Potosí. MATERIAL AND METHODS: We evaluated the presence of cytomegalovirus in blood samples stored in filter paper. RESULTS: Cytomegalovirus was detected in 10 (0.68% of the 1 457 samples included in the study. There were no differences in the characteristics of infants with congenital infection compared to those without infection. CONCLUSIONS: It is necessary to increase awareness of health professionals regarding the prevalence and impact of congenital cytomegalovirus infection.

Are video sharing web sites a useful source of information on hypertension?

Science.gov (United States)

Kumar, Nilay; Pandey, Ambarish; Venkatraman, Anand; Garg, Neetika

2014-07-01

Hypertension (HTN) is a prevalent and growing public health problem in the United States and worldwide. Video sharing Web sites such as YouTube could potentially influence patient behaviors via properties of interpersonal and mass media communication. We conducted this cross-sectional study to assess the accuracy and content of YouTube videos on HTN and understand how viewers interact with this online information. We analyzed 209 videos (31.57 hours) of which 63% were classified as useful, 33% as misleading, and 4% represented patient's personal experiences. Number of views per day and "likes" were significantly lower for useful videos. Approximately half the misleading videos contained product advertisements, 70% advocated unproven alternative treatments, and 91% targeted patients. Viewer engagement (number of views) was a poor predictor of usefulness and/or content whereas source of upload, and target audiences were good predictors of usefulness and/or content. Videos uploaded by university channels and/or professional organizations that targeted physicians had a 99.4% (P < .001) probability of being useful whereas videos uploaded by individuals with unknown credentials that targeted patients had a 21.2% (P < .001) probability of being useful. A majority of HTN-related videos on YouTube are useful. Viewer engagement is significantly higher with videos that contain misleading and/or erroneous information in comparison to videos that contain useful information. Copyright © 2014 American Society of Hypertension. Published by Elsevier Inc. All rights reserved.

Parent-child relationships and self‑control in male university students' desire to play video games.

Science.gov (United States)

Karbasizadeh, Sina; Jani, Masih; Keshvari, Mahtab

2018-06-12

To determine the relationship between the parent-child relationship, self-control and demographic characteristics and the desire to play video games among male university students at one university in Iran. This was a correlational, descriptive, applied study. A total of 103 male students were selected randomly as a study sample from the population of male students at Isfahan University in Iran. Data collection tools used were the Video Games Questionnaire, Tanji's Self-Control Scale, Parent-Child Relationship Questionnaire, and Demographic Questionnaire. Data were analysed using stepwise regression analysis. This study found several factors increased male students' desire to play video games. Demographic characteristics associated with increased tendency to play video games among male students in Iran are older age, larger number of family members, lower parental level of education and higher socio-economic class, while other significant factors are a lower level of self‑control and a poorer parent-child relationship. PARTICIPANTS': higher socio-economic class, lower level of self-control and older age explained 8.2%, 5.2% and 5.9% of their desire to play video games, respectively. These three variables together accounted for significantly 16.9% of a male student's desire to play video games in this study ( P video games in Iran. Moreover, lower levels of self-control and a poorer parent-child relationship were found to be accompanied by a greater desire to play video games among male university students. © 2018 RCN Publishing Company Ltd. All rights reserved. Not to be copied, transmitted or recorded in any way, in whole or part, without prior permission of the publishers.

"Non qua servus est, sed qua homo." Der rechtliche Status von Sklaven bei Luis de Molina

OpenAIRE

Simmermacher, Danaë

2014-01-01

Luis de Molina (1535-1600) grants slaves a legal status through which they can take up a position with respect to their masters between equivalent legal entity and legal object. Here, what is decisive is the figure of the subjective right, which both for Molina and modern proponents of this legal concept describes the 'right per se'. According to Molina's definition of ius, the denial of a subjective right or the hindrance of exercising an individual right represents an injustice. The rights ...

Brote de encefalitis de San Luis en el Área Metropolitana Buenos Aires Outbreack of St. Luis encephalitis in the Metropolitan Buenos Aires Area

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Alfredo Seijo

2011-06-01

Full Text Available Se describen los hallazgos epidemiológicos y clínicos de 13 enfermos con diagnóstico de infección por virus de la encefalitis de San Luis, con transmisión entre enero y marzo de 2010, en el Area Metropolitana Buenos Aires (AMBA. Los 13 enfermos, promedio de edad 38 años, tuvieron un comienzo agudo caracterizado por hipertermia y cefalea. Entre los días dos y diez de iniciados los síntomas, 7/13 enfermos tuvieron signos y síntomas de compromiso neurológico caracterizado por meningitis sin signos encefálicos en 1/7. En 6/7 los hallazgos más frecuentes fueron: rigidez de nuca, desorientación temporoespacial, fotofobia, confusión y alteración del lenguaje. Dos resonancias magnéticas y un electroencefalograma presentaron signos de afectación de lóbulos temporales. El líquido cefalorraquídeo se caracterizó por pleocitosis con predominio de células mononucleadas, glucorraquia normal y discreto aumento de proteínas. No hubo casos fatales. En 6/13 pacientes la sospecha clínica inicial fue dengue. Por la agrupación espacial y temporal de los casos puede considerarse un brote epidémico, el primero conocido en el AMBA, ya que no se había notificado previamente la circulación epidémica del virus.We describe the epidemiological and clinical findings of 13 patients with diagnosis of infection by St. Louis encephalitis virus, transmitted between January and March 2010 in Buenos Aires Metropolitan Area (AMBA. Thirteen patients, average age 38 years, had an acute onset with hyperthermia and headache. Between days two and ten of the onset of symptoms, 7/13 patients had signs and symptoms of neurological involvement. This was characterized by meningitis without encephalic sings in 1/7 and in 6/7 the most frequent findings were: stiff neck, disorientation, photophobia, confusion and language impairment. Two MR and one EEG revealed signs of involvement of temporal lobes. The cerebrospinal fluid showed pleocytosis with predominance of

Multi-Task Video Captioning with Video and Entailment Generation

OpenAIRE

Pasunuru, Ramakanth; Bansal, Mohit

2017-01-01

Video captioning, the task of describing the content of a video, has seen some promising improvements in recent years with sequence-to-sequence models, but accurately learning the temporal and logical dynamics involved in the task still remains a challenge, especially given the lack of sufficient annotated data. We improve video captioning by sharing knowledge with two related directed-generation tasks: a temporally-directed unsupervised video prediction task to learn richer context-aware vid...

Video Quality Prediction Models Based on Video Content Dynamics for H.264 Video over UMTS Networks

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Asiya Khan

2010-01-01

Full Text Available The aim of this paper is to present video quality prediction models for objective non-intrusive, prediction of H.264 encoded video for all content types combining parameters both in the physical and application layer over Universal Mobile Telecommunication Systems (UMTS networks. In order to characterize the Quality of Service (QoS level, a learning model based on Adaptive Neural Fuzzy Inference System (ANFIS and a second model based on non-linear regression analysis is proposed to predict the video quality in terms of the Mean Opinion Score (MOS. The objective of the paper is two-fold. First, to find the impact of QoS parameters on end-to-end video quality for H.264 encoded video. Second, to develop learning models based on ANFIS and non-linear regression analysis to predict video quality over UMTS networks by considering the impact of radio link loss models. The loss models considered are 2-state Markov models. Both the models are trained with a combination of physical and application layer parameters and validated with unseen dataset. Preliminary results show that good prediction accuracy was obtained from both the models. The work should help in the development of a reference-free video prediction model and QoS control methods for video over UMTS networks.

Streaming Video--The Wave of the Video Future!

Science.gov (United States)

Brown, Laura

2004-01-01

Videos and DVDs give the teachers more flexibility than slide projectors, filmstrips, and 16mm films but teachers and students are excited about a new technology called streaming. Streaming allows the educators to view videos on demand via the Internet, which works through the transfer of digital media like video, and voice data that is received…

A video authentication technique

International Nuclear Information System (INIS)

Johnson, C.S.

1987-01-01

Unattended video surveillance systems are particularly vulnerable to the substitution of false video images into the cable that connects the camera to the video recorder. New technology has made it practical to insert a solid state video memory into the video cable, freeze a video image from the camera, and hold this image as long as desired. Various techniques, such as line supervision and sync detection, have been used to detect video cable tampering. The video authentication technique described in this paper uses the actual video image from the camera as the basis for detecting any image substitution made during the transmission of the video image to the recorder. The technique, designed for unattended video systems, can be used for any video transmission system where a two-way digital data link can be established. The technique uses similar microprocessor circuitry at the video camera and at the video recorder to select sample points in the video image for comparison. The gray scale value of these points is compared at the recorder controller and if the values agree within limits, the image is authenticated. If a significantly different image was substituted, the comparison would fail at a number of points and the video image would not be authenticated. The video authentication system can run as a stand-alone system or at the request of another system

Abastecimento futuro da água potável abate, análise espacial e da vulnerabilidade da cidade de san luis potosi, méxico

OpenAIRE

Contreras Servín, Carlos; Galindo Mendoza, María Guadalupe

2009-01-01

O presente artigo discute e apresenta as condições físicas, sociais e económicas que afectam a imagem global e os problemas actuais respeito ao abastecimento de água potável da região metropolitana de San Luis Potosi. Entre os temas a abordar está a relação entre disponibilidade hídrica e aumento da população, bem como a evolução de extração de águas subterrâneas. Além disso, a pesquisa mostra um diagnóstico da situação actual de abastecimento de água potável em San Luis Potosi e áreas circun...

Ampliación de la distribución de Teius oculatus y T. suquiensis (Sauria: Teiidae en la provincia de San Luis (República Argentina

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Guerreiro, Analía C.

1998-01-01

Full Text Available Teius oculatus (D'Orbigny & Bibron, 1837. Dpto. La Capital. Localidades: Daniel Donovan (33°21'S; 66°15'W UNSUCH 0098; Ciudad de San Luis (33°18'S; 66°22'W UNSL-CH 0132, 0137. Teius suquiensis Avila & Martori, 1991. Dpto. La Capital. Localidades: Daniel Dono- van, UNSL-CH 0095, 0097, 0230; Ciudad de San Luis, UNSL-CH 0118, 0120, 0141, 0172, 0214, 0221; Ruta Prov. 3 (33°15'S; 66°18'W, UNSL-CH 0231, 0232. Dpto. Cnel. Pringles: La Florida (33°08'S; 66°02'W UNSL-CH 0223. Colectores: Juan Cruz Baldoni, Ana María Brigada, Matías García, Analía C. Guerreiro y Flavio Martínez.

Inventario de recursos turísticos como base para la planificación territorial en la zona altiplano de san Luis Potosi, México

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Paloma Blanco López

2015-01-01

Full Text Available Este artículo aborda el análisis del potencial turístico como condición para la planificación turística. Se explica el turismo como factor de desarrollo y a la planificación como instrumento de su gestión. Se utilizan los municipios con mayor potencial turístico en la Zona Altiplano de San Luis Potosí para exponer y ejemplificar los resultados del diagnóstico de la región. Después se evalúan los instrumentos vigentes de planificación turística vigentes en San Luis Potosí y se ofrece una propuesta de aprovechamiento turístico con ayuda de un análisis FODA para los municipios seleccionados.

Algorithm for Video Summarization of Bronchoscopy Procedures

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Leszczuk Mikołaj I

2011-12-01

Full Text Available Abstract Background The duration of bronchoscopy examinations varies considerably depending on the diagnostic and therapeutic procedures used. It can last more than 20 minutes if a complex diagnostic work-up is included. With wide access to videobronchoscopy, the whole procedure can be recorded as a video sequence. Common practice relies on an active attitude of the bronchoscopist who initiates the recording process and usually chooses to archive only selected views and sequences. However, it may be important to record the full bronchoscopy procedure as documentation when liability issues are at stake. Furthermore, an automatic recording of the whole procedure enables the bronchoscopist to focus solely on the performed procedures. Video recordings registered during bronchoscopies include a considerable number of frames of poor quality due to blurry or unfocused images. It seems that such frames are unavoidable due to the relatively tight endobronchial space, rapid movements of the respiratory tract due to breathing or coughing, and secretions which occur commonly in the bronchi, especially in patients suffering from pulmonary disorders. Methods The use of recorded bronchoscopy video sequences for diagnostic, reference and educational purposes could be considerably extended with efficient, flexible summarization algorithms. Thus, the authors developed a prototype system to create shortcuts (called summaries or abstracts of bronchoscopy video recordings. Such a system, based on models described in previously published papers, employs image analysis methods to exclude frames or sequences of limited diagnostic or education value. Results The algorithm for the selection or exclusion of specific frames or shots from video sequences recorded during bronchoscopy procedures is based on several criteria, including automatic detection of "non-informative", frames showing the branching of the airways and frames including pathological lesions. Conclusions

Innovations in Stream Restoration and Flood Control Design Meeting Flood Capacity and Environmental Goals on San Luis Obispo Creek

Science.gov (United States)

Wayne Peterson

1989-01-01

Can a natural flowing creek be increased in drainage capacity to protect an adjacent community from flooding while still maintaining a natural habitat? San Luis Obispo constructed one such project on over a mile of Creek as a part of a housing development. The City found that some of the mitigation measures included in the project worked while others did not. In the...

The LivePhoto Physics videos and video analysis site

Science.gov (United States)

Abbott, David

2009-09-01

The LivePhoto site is similar to an archive of short films for video analysis. Some videos have Flash tools for analyzing the video embedded in the movie. Most of the videos address mechanics topics with titles like Rolling Pencil (check this one out for pedagogy and content knowledge—nicely done!), Juggler, Yo-yo, Puck and Bar (this one is an inelastic collision with rotation), but there are a few titles in other areas (E&M, waves, thermo, etc.).

Ranking Highlights in Personal Videos by Analyzing Edited Videos.

Science.gov (United States)

Sun, Min; Farhadi, Ali; Chen, Tseng-Hung; Seitz, Steve

2016-11-01

We present a fully automatic system for ranking domain-specific highlights in unconstrained personal videos by analyzing online edited videos. A novel latent linear ranking model is proposed to handle noisy training data harvested online. Specifically, given a targeted domain such as "surfing," our system mines the YouTube database to find pairs of raw and their corresponding edited videos. Leveraging the assumption that an edited video is more likely to contain highlights than the trimmed parts of the raw video, we obtain pair-wise ranking constraints to train our model. The learning task is challenging due to the amount of noise and variation in the mined data. Hence, a latent loss function is incorporated to mitigate the issues caused by the noise. We efficiently learn the latent model on a large number of videos (about 870 min in total) using a novel EM-like procedure. Our latent ranking model outperforms its classification counterpart and is fairly competitive compared with a fully supervised ranking system that requires labels from Amazon Mechanical Turk. We further show that a state-of-the-art audio feature mel-frequency cepstral coefficients is inferior to a state-of-the-art visual feature. By combining both audio-visual features, we obtain the best performance in dog activity, surfing, skating, and viral video domains. Finally, we show that impressive highlights can be detected without additional human supervision for seven domains (i.e., skating, surfing, skiing, gymnastics, parkour, dog activity, and viral video) in unconstrained personal videos.

Video processing for human perceptual visual quality-oriented video coding.

Science.gov (United States)

Oh, Hyungsuk; Kim, Wonha

2013-04-01

We have developed a video processing method that achieves human perceptual visual quality-oriented video coding. The patterns of moving objects are modeled by considering the limited human capacity for spatial-temporal resolution and the visual sensory memory together, and an online moving pattern classifier is devised by using the Hedge algorithm. The moving pattern classifier is embedded in the existing visual saliency with the purpose of providing a human perceptual video quality saliency model. In order to apply the developed saliency model to video coding, the conventional foveation filtering method is extended. The proposed foveation filter can smooth and enhance the video signals locally, in conformance with the developed saliency model, without causing any artifacts. The performance evaluation results confirm that the proposed video processing method shows reliable improvements in the perceptual quality for various sequences and at various bandwidths, compared to existing saliency-based video coding methods.

No Reference Video-Quality-Assessment Model for Monitoring Video Quality of IPTV Services

Science.gov (United States)

Yamagishi, Kazuhisa; Okamoto, Jun; Hayashi, Takanori; Takahashi, Akira

Service providers should monitor the quality of experience of a communication service in real time to confirm its status. To do this, we previously proposed a packet-layer model that can be used for monitoring the average video quality of typical Internet protocol television content using parameters derived from transmitted packet headers. However, it is difficult to monitor the video quality per user using the average video quality because video quality depends on the video content. To accurately monitor the video quality per user, a model that can be used for estimating the video quality per video content rather than the average video quality should be developed. Therefore, to take into account the impact of video content on video quality, we propose a model that calculates the difference in video quality between the video quality of the estimation-target video and the average video quality estimated using a packet-layer model. We first conducted extensive subjective quality assessments for different codecs and video sequences. We then model their characteristics based on parameters related to compression and packet loss. Finally, we verify the performance of the proposed model by applying it to unknown data sets different from the training data sets used for developing the model.

Effects of psychological priming, video, and music on anaerobic exercise performance.

Science.gov (United States)

Loizou, G; Karageorghis, C I

2015-12-01

Peak performance videos accompanied by music can help athletes to optimize their pre-competition mindset and are often used. Priming techniques can be incorporated into such videos to influence athletes' motivational state. There has been limited empirical work investigating the combined effects of such stimuli on anaerobic performance. The present study examined the psychological and psychophysiological effects of video, music, and priming when used as a pre-performance intervention for an anaerobic endurance task. Psychological measures included the main axes of the circumplex model of affect and liking scores taken pre-task, and the Exercise-induced Feeling Inventory, which was administered post-task. Physiological measures comprised heart rate variability and heart rate recorded pre-task. Fifteen males (age = 26.3 ± 2.8 years) were exposed to four conditions prior to performing the Wingate Anaerobic Test: music-only, video and music, video with music and motivational primes, and a no-video/no-music control. Results indicate that the combined video, music, and primes condition was the most effective in terms of influencing participants' pre-task affect and subsequent anaerobic performance; this was followed by the music-only condition. The findings indicate the utility of such stimuli as a pre-performance technique to enhance athletes' or exercisers' psychological states. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

La ética y el problema de Dios en Juan Luis Vives (1492-1540

Directory of Open Access Journals (Sweden)

Alfonso Maestre Sánchez

2003-01-01

Full Text Available In the historical, turbulent and exciting times of the Renaissance Humanism, characterized by a return to classic Antiquity, and the renovation of all cultural manifestations, both philosophy and religion are affected from their very foundations. This scholastic crisis affects in such a way the conscience, of the individuals and the people that it demands a solution immediate although provisional solution, so that we continuing even the business of living. No wonder that among the ruins of tomist morality, some moralists arise, as that of Justus Lipsius (1547-1606, engased in renovating the stoic doctrines of Epicteto (ca. 50 to. of C. -125/138 and Séneca (ca. 4-65, and that of Pierre Gassendi (1592-1655, determined to Christianize Epicuro. For some could be a summarise of the Ethics of the Renaissance others believe that the first Ethics of modern philosophy should be considered to be a product of the Renaissance, even if it does not belong chronologically to it they meam Descartes (1596-1650, Spinoza (1632-1677 and Kant (1724-1804. However according to the opinion of some significant authors, we dont need to go back to Kant to find the authentic Ethics of the Renaissance. Juan Luis Vives published in 1524 a small booklet titled Introductio ad Sapientiam that for its internal ideological structure and its origin senequista and christan leaning occupies a privileged place within modern Ethic, and if we take accourt his content and chronology it can be considered as the Ethics of the Renaissance, at least of the Spanish Renaissance.

Tectonic Implications of Changes in the Paleogene Paleodrainage Network in the West-Central Part of the San Luis Basin, Northern Rio Grande Rift, New Mexico and Colorado, USA

Science.gov (United States)

Thompson, R. A.; Turner, K. J.; Cosca, M. A.; Drenth, B.

2016-12-01

The San Luis Basin is the largest of extensional basins in the northern Rio Grande rift (>11,400 km2). The modern basin configuration is the result of Neogene deformation that has been the focus of numerous studies. In contrast, Paleogene extensional deformation is relatively little studied owing to a fragmentary or poorly exposed stratigraphic record in most areas. However, volcanic and volcaniclastic deposits exposed along the western margin of the basin provide the spatial and temporal framework for interpretation of paleodrainage patterns that changed in direct response to Oligocene basin subsidence and the migration of centers of Tertiary volcanism. The early Oligocene (34 to 30 Ma) drainage pattern that originated in the volcanic highlands of the San Juan Mountains flowed south into the northern Tusas Mountains. A structural and topographic high composed of Proterozoic rocks in the Tusas Mountains directed flow to the southeast at least as late as 29 Ma, as ash-flow tuffs sourced in the southeast San Juan Mountains are restricted to the north side of the paleohigh. Construction of volcanic highlands in the San Luis Hills between 30 and 28.5 Ma provided an abundant source of volcanic debris that combined with volcanic detritus sourced in the southeast San Juan Mountains and was deposited (Los Pinos Formation) throughout the northern Tusas Mountains progressively onlapping the paleotopographic high. By 29 Ma, subsidence of the Las Mesitas graben, a structural sub-basin, between the San Luis Hills and the southeast San Juan and northern Tusas Mountains is reflected by thick deposits of Los Pinos Formation beneath 26.5 Ma basalts. Regional tectonism responsible for the formation of the graben may have also lowered the topographic and structural high in the Tusas Mountains, which allowed development of a southwest-flowing paleodrainage that likely flowed onto the Colorado Plateau. Tholeiitic basalt flows erupted in the San Luis Hills at 25.8 Ma, that presently cap

Physics and Video Analysis

Science.gov (United States)

Allain, Rhett

2016-05-01

We currently live in a world filled with videos. There are videos on YouTube, feature movies and even videos recorded with our own cameras and smartphones. These videos present an excellent opportunity to not only explore physical concepts, but also inspire others to investigate physics ideas. With video analysis, we can explore the fantasy world in science-fiction films. We can also look at online videos to determine if they are genuine or fake. Video analysis can be used in the introductory physics lab and it can even be used to explore the make-believe physics embedded in video games. This book covers the basic ideas behind video analysis along with the fundamental physics principles used in video analysis. The book also includes several examples of the unique situations in which video analysis can be used.

Genetic diversity of the Mycobacterium tuberculosis complex in San Luis Potosí, México.

Science.gov (United States)

López-Rocha, Estela; Juárez-Álvarez, Julio; Riego-Ruiz, Lina; Enciso-Moreno, Leonor; Ortega-Aguilar, Francisco; Hernández-Nieto, Julián; Enciso-Moreno, José A; López-Revilla, Rubén

2013-05-01

Although epidemiologic and socioeconomic criteria and biomedical risk factors indicate high-priority for tuberculosis (TB) control in Mexico, molecular epidemiology studies of the disease in the country are scarce. Complete sociodemographic and clinical data were obtained from 248 of the 432 pulmonary TB (PTB) cases confirmed from 2006 to 2010 on the population under epidemiological surveillance in the state of San Luis Potosí, México. From most PTB cases with complete data Mycobacterium tuberculosis complex (MTC) isolates were recovered and their spoligotypes, lineages and families, geographic distribution and drug resistance determined. Pulmonary tuberculosis incidence ranged from 2.4 to 33.4 (cases per 100,000 inhabitants) in the six state sanitary jurisdictions that were grouped in regions of low (jurisdictions I-II-III), intermediate (jurisdictions IV-V) and high incidence (jurisdiction VI) with 6.2, 17.3 and 33.4 rates, respectively. Most patients were poor, 50-years-median-age males and housewives. Among the 237 MTC spoligotyped isolates, 232 corresponded to M. tuberculosis (104 spoligotypes in 24 clusters) and five to M. bovis. The predominant Euro-American lineage was distributed all over the state, the East-Asian lineage (Beijing family) in the capital city, the Indo-Oceanic (Manila family) in eastern localities, and M. bovis in rural localities. In San Luis Potosí TB affects mainly poor male adults and is caused by M. tuberculosis and to a minor extent by M. bovis. There is great genotypic diversity among M. tuberculosis strains, the Euro-American lineage being much more prevalent than the Indo-Oceanic and East-Asian lineages. The frequency of resistant strains is relatively low and not associated to any particular lineage.

Contradictions porteñas: modernity, modernism and modernization in Jorge Luis Borges during the 1920’s

Directory of Open Access Journals (Sweden)

Pedro Demenech

2013-06-01

Full Text Available The aim of the article is discuss the concepts of modernity, modernism and modernization from the propositions raised by Marshal Berman and Néstor García Canclini. The fierce transformation of Buenos Aires during the 1920’s will be the focus of the analysis. To this end, we use the work of argentine poet Jorge Luis Borges to comprehend the development of these processes in the urban space of Buenos Aires.

Video games

OpenAIRE

Kolář, Vojtěch

2012-01-01

This thesis is based on a detailed analysis of various topics related to the question of whether video games can be art. In the first place it analyzes the current academic discussion on this subject and confronts different opinions of both supporters and objectors of the idea, that video games can be a full-fledged art form. The second point of this paper is to analyze the properties, that are inherent to video games, in order to find the reason, why cultural elite considers video games as i...

Violent video game effects on children and adolescents. A review of the literature.

Science.gov (United States)

Gentile, D A; Stone, W

2005-12-01

Studies of violent video games on children and adolescents were reviewed to: 1) determine the multiple effects; 2) to offer critical observations about common strengths and weaknesses in the literature; 3) to provide a broader perspective to understand the research on the effects of video games. The review includes general theoretical and methodological considerations of media violence, and description of the general aggression model (GAM). The literature was evaluated in relation to the GAM. Published literature, including meta-analyses, are reviewed, as well as relevant unpublished material, such as conference papers and dissertations. Overall, the evidence supports hypotheses that violent video game play is related to aggressive affect, physiological arousal, aggressive cognitions, and aggressive behaviours. The effects of video game play on school performance are also evaluated, and the review concludes with a dimensional approach to video game effects. The dimensional approach evaluates video game effects in terms of amount, content, form, and mechanics, and appears to have many advantages for understanding and predicting the multiple types of effects demonstrated in the literature.

Learning to diagnose using patient video case in paediatrics: perceptive and cognitive processes

OpenAIRE

Balslev, Thomas

2012-01-01

Thomas Balslev, a paediatric neurologist and educational researcher, defended his thesis on 24 November 2011. The thesis included five published papers, and investigated learning with authentic, brief patient video cases. With analysis of a video case in a small group, learning processes and sharing of knowledge was intensely stimulated. Small group discussion and subsequent listening to an expert’s think-aloud were particularly effective approaches to enhance diagnostic accuracy among non-ex...

Saber mirar, saber contar. La narrativa cinematográfica de José Luis Borau

OpenAIRE

Mérida Donoso, José Antonio

2018-01-01

Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Filosofía y Letras, Departamento de Filología Española. Fecha de lectura: 29-9-2017 La presente tesis doctoral se adentra en una de las figuras fundamentales de la historia del cine español, José Luis Borau. Para ello se analiza su cine desde una perspectiva textual, atendiendo al emisor, el receptor, el contexto –de producción y sociopolítico- y el texto fílmico. Bajo este prisma se ofrece una visión del estilo...

Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia

OpenAIRE

Saquib, Nazmus; Saquib, Juliann; Wahid, AbdulWaris; Ahmed, Abdulrahman Akmal; Dhuhayr, Hamad Emad; Zaghloul, Mohamed Saddik; Ewid, Mohammed; Al-Mazrou, Abdulrahman

2017-01-01

Introduction: Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. Methods: The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in t...

Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia

OpenAIRE

Saquib, Nazmus; Saquib, Juliann; Wahid, AbdulWaris; Ahmed, Abdulrahman Akmal; Dhuhayr, Hamad Emad; Zaghloul, Mohamed Saddik; Ewid, Mohammed; Al-Mazrou, Abdulrahman

2017-01-01

Introduction Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. Methods The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in the...

Potential human health risk by 234,238U and 210Po due to consumption of fish from the "Luis L. Leon" reservoir (Northern Mexico)

Science.gov (United States)

Luna-Porres, M. Y.; Rodríguez-Villa, M. A.; Herrera-Peraza, E.; Cabral-Lares, M.; Renteria-Villalobos, M.; Montero-Cabrera, M. E.

2014-07-01

The Conchos River is one of the most important in northern Mexico and the main surface waterway in the arid state of Chihuahua. The Luis L. Leon dam produces the Luis L. Leon Reservoir, which is the last major reservoir before the Conchos River enters the Rio Grande at the Texas-Chihuahua border. Activity concentrations (AC) of 234,238U and 210Po in fillet and liver of three stocked fish species (Lepomis cyanellus, Cyprinus carpio and Ictalurus furcatus), as well as in water from the Luis L. Leon reservoir were determined. 238U and 234U ACs in fillet samples showed values of 0.007-0.014 and 0.01-0.02 Bq kg-1 wet weight (ww), respectively. Liver samples for Lepomis cyanellus, Cyprinus carpio and Ictalurus furcatus species, present 210Po AC of 1.16-3.26 0.70-1.13 and 0.93-1.37 Bqṡkg-1 ww. The elemental Bioaccumulation Factor (BAF) for fish tissues respect to their concentrations in water was determined. Lepomis cyanellus species showed the highest BAF for total uranium in fillet, with value 1.5. The annual effective dose for uranium in adults by fish consumption in this work ranged from 4.46×10-3 to 3.68×10-2 μSvṡyear-1. The difference in concentrations of uranium in fillet among the studied species is likely primarily due to their differences in diet and habitat.

Technology survey on video face tracking

Science.gov (United States)

Zhang, Tong; Gomes, Herman Martins

2014-03-01

With the pervasiveness of monitoring cameras installed in public areas, schools, hospitals, work places and homes, video analytics technologies for interpreting these video contents are becoming increasingly relevant to people's lives. Among such technologies, human face detection and tracking (and face identification in many cases) are particularly useful in various application scenarios. While plenty of research has been conducted on face tracking and many promising approaches have been proposed, there are still significant challenges in recognizing and tracking people in videos with uncontrolled capturing conditions, largely due to pose and illumination variations, as well as occlusions and cluttered background. It is especially complex to track and identify multiple people simultaneously in real time due to the large amount of computation involved. In this paper, we present a survey on literature and software that are published or developed during recent years on the face tracking topic. The survey covers the following topics: 1) mainstream and state-of-the-art face tracking methods, including features used to model the targets and metrics used for tracking; 2) face identification and face clustering from face sequences; and 3) software packages or demonstrations that are available for algorithm development or trial. A number of publically available databases for face tracking are also introduced.

Relacije umetnosti i video igara / Relations of Art and Video Games

OpenAIRE

Manojlo Maravić

2012-01-01

When discussing the art of video games, three different contexts need to be considered: the 'high' art (video games and the art); commercial video games (video games as the art) and the fan art. Video games are a legitimate artistic medium subject to modifications and recontextualisations in the process of creating a specific experience of the player/user/audience and political action by referring to particular social problems. They represent a high technological medium that increases, with p...

Predicting arsenic concentrations in groundwater of San Luis Valley, Colorado: implications for individual-level lifetime exposure assessment.

Science.gov (United States)

James, Katherine A; Meliker, Jaymie R; Buttenfield, Barbara E; Byers, Tim; Zerbe, Gary O; Hokanson, John E; Marshall, Julie A

2014-08-01

Consumption of inorganic arsenic in drinking water at high levels has been associated with chronic diseases. Risk is less clear at lower levels of arsenic, in part due to difficulties in estimating exposure. Herein we characterize spatial and temporal variability of arsenic concentrations and develop models for predicting aquifer arsenic concentrations in the San Luis Valley, Colorado, an area of moderately elevated arsenic in groundwater. This study included historical water samples with total arsenic concentrations from 595 unique well locations. A longitudinal analysis established temporal stability in arsenic levels in individual wells. The mean arsenic levels for a random sample of 535 wells were incorporated into five kriging models to predict groundwater arsenic concentrations at any point in time. A separate validation dataset (n = 60 wells) was used to identify the model with strongest predictability. Findings indicate that arsenic concentrations are temporally stable (r = 0.88; 95 % CI 0.83-0.92 for samples collected from the same well 15-25 years apart) and the spatial model created using ordinary kriging best predicted arsenic concentrations (ρ = 0.72 between predicted and observed validation data). These findings illustrate the value of geostatistical modeling of arsenic and suggest the San Luis Valley is a good region for conducting epidemiologic studies of groundwater metals because of the ability to accurately predict variation in groundwater arsenic concentrations.

THE SONG OF SONGS IN THE WORK OF LUIS DE LEON, SAN JUAN DE LA CRUZ Y JUAN GELMAN LANGUAGE, CHILDREN AND SPIRITUAL EXPERIENCE

Directory of Open Access Journals (Sweden)

Geneviève Fabry

2015-04-01

Full Text Available This paper aims to study the intertextual traces dell Song of Songs in the work of Luis de León, San Juan de la Cruz and Juan Gelman from a particular point of view: the resonance in the vernacular of small biblical book as founder dimension of an experience spiritual, emotional and literary time. Choosing our corpus may surprise but, for one, would like to emphasize the importance of two pivotal moments in the reception of the Song: the Spanish Renaissance, whose approach to the Bible is enriched by new currents philological and exegetical of which Luis de León is a sublime representative; the late twentieth century in which an insistent intertextuality observed with sanjuanista work in one direction often foreign to Christian spirituality, as in the case of the Argentine Juan Gelman.

Application of Cs-137 techniques to problems of sediment redistribution in Sungai Lui representative basin, Selangor, Malaysia (Part 1)

International Nuclear Information System (INIS)

Daud bin Mohamad.

1982-11-01

Since the beginning of the nuclear age, Cesium-137 has become a part of the world's ecosystems. Cs-137 is carried from the atmosphere to the ground by rainfall. On reaching the earth's surface, 137 Cs becomes strongly adsorbed to soil profiles and is concentrated predominantly in the surface layer, particularly in clayey soils. Systematic measurements of Cs-137 levels will therefore permit estimates to be made of the cumulative effects of soil redistribution over the past 25 years. Sediment movement in river catchments and coastal areas is a very old problem in Malaysia. In view of rapid development of urban and agricultural areas in Malaysia it was realised tha soil loss problems are particularly serious. The Sungai Lui catchment was chosen to be the investigational site. Geologically, the area comprises of granite and granitic schist. The area is mostly covered by forest (approx. 83%) and rubber (13%), padi (2%) and others (2%). The climate is considered to be typical of Peninsular Malaysia (equatorial) characterised by uniform temperature, high humidity and high rainfall. The area is mainly drained by the Lui River. Soil samples were collected from the catchment area at 4 sampling points in April 1981. The results of analyses of Cs-137 in soil samples from Sungai Lui catchment area ranged from 1.3 to 6.8 M Bq g -1 of sample and they could still be detected even up to 20 cm depth. A general pattern of Cs-137 distribution was observed in the soil profile at each site. The highest activity being in the top 3 cm layer and then decreasing up to about 6 cm. The activity increases again up to about 9 cm layer. From there onwards, it decreases. Based on these results, the estimated rate of sediment accumulation in the area was found to be about 0.47 cm/year. Since the samples were only collected from the depositional sites, further sampling especially from erosional site should therefore be carried out in order to obtain more complete data

Rare Disease Video Portal

OpenAIRE

Sánchez Bocanegra, Carlos Luis

2011-01-01

Rare Disease Video Portal (RD Video) is a portal web where contains videos from Youtube including all details from 12 channels of Youtube. Rare Disease Video Portal (RD Video) es un portal web que contiene los vídeos de Youtube incluyendo todos los detalles de 12 canales de Youtube. Rare Disease Video Portal (RD Video) és un portal web que conté els vídeos de Youtube i que inclou tots els detalls de 12 Canals de Youtube.

Medical students' perceptions of video-linked lectures and video-streaming

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Karen Mattick

2010-12-01

Full Text Available Video-linked lectures allow healthcare students across multiple sites, and between university and hospital bases, to come together for the purposes of shared teaching. Recording and streaming video-linked lectures allows students to view them at a later date and provides an additional resource to support student learning. As part of a UK Higher Education Academy-funded Pathfinder project, this study explored medical students' perceptions of video-linked lectures and video-streaming, and their impact on learning. The methodology involved semi-structured interviews with 20 undergraduate medical students across four sites and five year groups. Several key themes emerged from the analysis. Students generally preferred live lectures at the home site and saw interaction between sites as a major challenge. Students reported that their attendance at live lectures was not affected by the availability of streamed lectures and tended to be influenced more by the topic and speaker than the technical arrangements. These findings will inform other educators interested in employing similar video technologies in their teaching.Keywords: video-linked lecture; video-streaming; student perceptions; decisionmaking; cross-campus teaching.

Automated Indexing and Search of Video Data in Large Collections with inVideo

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Shuangbao Paul Wang

2017-08-01

Full Text Available In this paper, we present a novel system, inVideo, for automatically indexing and searching videos based on the keywords spoken in the audio track and the visual content of the video frames. Using the highly efficient video indexing engine we developed, inVideo is able to analyze videos using machine learning and pattern recognition without the need for initial viewing by a human. The time-stamped commenting and tagging features refine the accuracy of search results. The cloud-based implementation makes it possible to conduct elastic search, augmented search, and data analytics. Our research shows that inVideo presents an efficient tool in processing and analyzing videos and increasing interactions in video-based online learning environment. Data from a cybersecurity program with more than 500 students show that applying inVideo to current video material, interactions between student-student and student-faculty increased significantly across 24 sections program-wide.

Use of Videos as Supplemental Education Tools Across the Cancer Trajectory.

Science.gov (United States)

Frentsos, Jeanne M

2015-12-01

Patients who are dealing with life changes as a result of a cancer diagnosis often search for information about the disease and its treatment. Knowledge gained from this information helps patients with cancer during survivorship and improves their active participation with the healthcare team. To provide patients with the information they need, healthcare providers must offer various methods for the delivery of educational materials. The use of video as a delivery mechanism should be considered as one option for patient content acquisition. This article describes the use of videos as supplemental education tools before, during, or after one-on-one patient teaching interactions. A literature review was performed that focused on locating, reviewing, and synthesizing published data from clinical studies related to the use of video in patient education. Videos deliver material in a way that is flexible and often familiar to patients. For example, delivery can occur via smartphone, electronic health record, computer, DVD, or television, and it does not require reading or a high level of literacy. Healthcare providers in oncology settings should consider establishing a process for instructional video development as part of a multimedia patient education library.

Comparing the effectiveness of a crowdsourced video and a social marketing video in promoting condom use among Chinese men who have sex with men: a study protocol.

Science.gov (United States)

Liu, Chuncheng; Mao, Jessica; Wong, Terrence; Tang, Weiming; Tso, Lai Sze; Tang, Songyuan; Zhang, Ye; Zhang, Wei; Qin, Yilu; Chen, Zihuang; Ma, Wei; Kang, Dianming; Li, Haochu; Liao, Meizhen; Mollan, Katie; Hudgens, Michael; Bayus, Barry; Huang, Shujie; Yang, Bin; Wei, Chongyi; Tucker, Joseph D

2016-10-03

Crowdsourcing has been used to spur innovation and increase community engagement in public health programmes. Crowdsourcing is the process of giving individual tasks to a large group, often involving open contests and enabled through multisectoral partnerships. Here we describe one crowdsourced video intervention in which a video promoting condom use is produced through an open contest. The aim of this study is to determine whether a crowdsourced intervention is as effective as a social marketing intervention in promoting condom use among high-risk men who have sex with men (MSM) and transgender male-to-female (TG) in China. We evaluate videos developed by crowdsourcing and social marketing. The crowdsourcing contest involved an open call for videos. Entries were judged on capacity to promote condom use, to be shareable or 'go viral' and to give value to the individual. 1170 participants will be recruited for the randomised controlled trial. Participants need to be MSM age 16 and over who have had condomless anal sex in the last 3 months. Recruitment will be through an online banner ad on a popular MSM web page and other social media platforms. After completing an initial survey, participants will be randomly assigned to view either the social marketing video or the crowdsourcing video. Follow-up surveys will be completed at 3 weeks and 3 months after initial intervention to evaluate condomless sex and related secondary outcomes. Secondary outcomes include condom social norms, condom negotiation, condom self-efficacy, HIV/syphilis testing, frequency of sex acts and incremental cost. Approval was obtained from the ethical review boards of the Guangdong Provincial Center for Skin Diseases and STI Control, UNC and UCSF. The results of this trial will be made available through publication in peer-reviewed journals. NCT02516930. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... YouTube Videos » NEI YouTube Videos: Amblyopia Listen NEI YouTube Videos YouTube Videos Home Age-Related Macular Degeneration ... Retinopathy of Prematurity Science Spanish Videos Webinars NEI YouTube Videos: Amblyopia Embedded video for NEI YouTube Videos: ...

José Teruel, Los años norteamericanos de Luis Cernuda: una singular propuesta de lectura

Directory of Open Access Journals (Sweden)

Dana Guisasola

2014-07-01

Full Text Available La presente reseña se aboca al reciente libro de José Teruel, Los años norteamericanos de Luis Cernuda. El crítico revisa un abundante material bibliográfico y da cuenta de  los pormenores de la vida y obra del poeta español entre 1947 -año en el que el poeta llega a Nueva Inglaterra- y 1963, año de su muerte. El libro ha sido galardonado con el Premio de Investigación Literaria Gerardo Diego en 2013.

New K-Ar ages of volcanic rocks and associated mineralization in Canada Honda district, San Luis, Argentina

International Nuclear Information System (INIS)

Urbina, N.E.; Oggier, F.P

2001-01-01

New K-Ar ages in the Late Tertiary gold-bearing volcanic belt of the Sierras Pampeanas of San Luis, Argentina are presented. At Canada Honda district, an age of 8.49±0.2 Ma yielded by Cerro del Valle andesite indicates that the dome emplacement postdates the Diente Verde eruptive event. An even younger age of 7.3±0.2 Ma was obtained for illite from hydrothermal alteration at La Reynela mineralization which is hosted by Cerro del Valle andesite (au)

A forgotten chapter of Mexican technology and science: Luis Gutiérrez Villegas and poliomyelitis in Mexico.

Science.gov (United States)

Velázquez-Arellano, Antonio

Two different types of vaccines were developed against poliomyelitis: The Salk vaccine using inactivated virus and the Sabin one, that was used later, after investigations assured its safety. The first one was made in Mexico with its own resources since 1957 thanks to the efforts of young researchers and technicians coordinated by Luis Gutiérrez-Villegas, M.D., who was a Clinical Pathologist, University Professor and President of the Mexican National Academy of Mexico. Copyright: © 2017 SecretarÍa de Salud.

Guerrilla Video: A New Protocol for Producing Classroom Video

Science.gov (United States)

Fadde, Peter; Rich, Peter

2010-01-01

Contemporary changes in pedagogy point to the need for a higher level of video production value in most classroom video, replacing the default video protocol of an unattended camera in the back of the classroom. The rich and complex environment of today's classroom can be captured more fully using the higher level, but still easily manageable,…

Tobacco imagery in video games: ratings and gamer recall.

Science.gov (United States)

Forsyth, Susan R; Malone, Ruth E

2016-09-01

To assess whether tobacco content found in video games was appropriately labelled for tobacco-related content by the Entertainment and Software Ratings Board (ESRB). Sixty-five gamer participants (self-identified age range 13-50) were interviewed in-person (n=25) or online (n=40) and asked (A) to list favourite games and (B) to name games that they could recall containing tobacco content. The ESRB database was searched for all games mentioned to ascertain whether they had been assigned tobacco-related content descriptors. Games were independently assessed for tobacco content by examining user-created game wiki sites and watching YouTube videos of gameplay. Games with tobacco-related ESRB content descriptors and/or with tobacco imagery verified by researchers were considered to contain tobacco content. Games identified by participants as including tobacco but lacking verifiable tobacco content were treated as not containing tobacco content. Participants recalled playing 140 unique games, of which 118 were listed in the ESRB database. Participants explicitly recalled tobacco content in 31% (37/118) of the games, of which 94% (35/37) included independently verified tobacco content. Only 8% (9/118) of the games had received ESRB tobacco-related content descriptors, but researchers verified that 42% (50/118) contained such content; 42% (49/118) of games were rated 'M' for mature (content deemed appropriate for ages 17+). Of these, 76% (37/49) contained verified tobacco content; however, only 4% (2/49) received ESRB tobacco-related content descriptors. Gamers are exposed to tobacco imagery in many video games. The ESRB is not a reliable source for determining whether video games contain tobacco imagery. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

Los hongos poliporoides de la Huasteca Potosina, San Luis Potosí, México

Directory of Open Access Journals (Sweden)

Victor I. Alvarez

2016-03-01

Full Text Available Se estudiaron 98 especies de hongos poliporoides basados en 358 especímenes procedentes de 15 localidades de nueve municipios de la Huasteca Potosina en el estado de San Luis Potosí. Las 98 especies se clasifican en tres órdenes de Agaricomycetes, el orden Gloeophyllales con una familia, un género y  una especie, el orden Hymenochaetales con 2 familias, 10 géneros y 33 especies, y el orden Polyporales con seis familias,  32 géneros y 64 especies. De éstas, 73 se citan por primera vez para el estado, incluidas Phellinus calcitratus, P. coffeatoporus y Ceriporia reticulata que son nuevos registros para México.Palabras clave: Gloeophyllales, Hymenochaetales, Polyporales, macrohongos xilófagos.

Video Comparator

International Nuclear Information System (INIS)

Rose, R.P.

1978-01-01

The Video Comparator is a comparative gage that uses electronic images from two sources, a standard and an unknown. Two matched video cameras are used to obtain the electronic images. The video signals are mixed and displayed on a single video receiver (CRT). The video system is manufactured by ITP of Chatsworth, CA and is a Tele-Microscope II, Model 148. One of the cameras is mounted on a toolmaker's microscope stand and produces a 250X image of a cast. The other camera is mounted on a stand and produces an image of a 250X template. The two video images are mixed in a control box provided by ITP and displayed on a CRT. The template or the cast can be moved to align the desired features. Vertical reference lines are provided on the CRT, and a feature on the cast can be aligned with a line on the CRT screen. The stage containing the casts can be moved using a Boeckleler micrometer equipped with a digital readout, and a second feature aligned with the reference line and the distance moved obtained from the digital display

A video event trigger for high frame rate, high resolution video technology

Science.gov (United States)

Williams, Glenn L.

1991-12-01

When video replaces film the digitized video data accumulates very rapidly, leading to a difficult and costly data storage problem. One solution exists for cases when the video images represent continuously repetitive 'static scenes' containing negligible activity, occasionally interrupted by short events of interest. Minutes or hours of redundant video frames can be ignored, and not stored, until activity begins. A new, highly parallel digital state machine generates a digital trigger signal at the onset of a video event. High capacity random access memory storage coupled with newly available fuzzy logic devices permits the monitoring of a video image stream for long term or short term changes caused by spatial translation, dilation, appearance, disappearance, or color change in a video object. Pretrigger and post-trigger storage techniques are then adaptable for archiving the digital stream from only the significant video images.

The Effects of Video Games on Cognition and Brain Structure: Potential Implications for Neuropsychiatric Disorders.

Science.gov (United States)

Shams, Tahireh A; Foussias, George; Zawadzki, John A; Marshe, Victoria S; Siddiqui, Ishraq; Müller, Daniel J; Wong, Albert H C

2015-09-01

Video games are now a ubiquitous form of entertainment that has occasionally attracted negative attention. Video games have also been used to test cognitive function, as therapeutic interventions for neuropsychiatric disorders, and to explore mechanisms of experience-dependent structural brain changes. Here, we review current research on video games published from January 2011 to April 2014 with a focus on studies relating to mental health, cognition, and brain imaging. Overall, there is evidence that specific types of video games can alter brain structure or improve certain aspects of cognitive functioning. Video games can also be useful as neuropsychological assessment tools. While research in this area is still at a very early stage, there are interesting results that encourage further work in this field, and hold promise for utilizing this technology as a powerful therapeutic and experimental tool.

Assessment of competence in video-assisted thoracoscopic surgery lobectomy: A Danish nationwide study.

Science.gov (United States)

Petersen, René Horsleben; Gjeraa, Kirsten; Jensen, Katrine; Møller, Lars Borgbjerg; Hansen, Henrik Jessen; Konge, Lars

2018-04-18

Competence in video-assisted thoracoscopic surgery lobectomy has previously been established on the basis of numbers of procedures performed, but this approach does not ensure competence. Specific assessment tools, such as the newly developed video-assisted thoracoscopic surgery lobectomy assessment tool, allow for structured and objective assessment of competence. Our aim was to provide validity evidence for the video-assisted thoracoscopic surgery lobectomy assessment tool. Video recordings of 60 video-assisted thoracoscopic surgery lobectomies performed by 18 thoracic surgeons were rated using the video-assisted thoracoscopic surgery lobectomy assessment tool. All 4 centers of thoracic surgery in Denmark participated in the study. Two video-assisted thoracoscopic surgery experts rated the videos. They were blinded to surgeon and center. The total internal consistency reliability Cronbach's alpha was 0.93. Inter-rater reliability between the 2 raters was Pearson's r = 0.71 (P video-assisted thoracoscopic surgery lobectomy assessment tool scores for the 10 procedures performed by beginners were 22.1 (standard deviation [SD], 8.6) for the 28 procedures performed by the intermediate surgeons, 31.2 (SD, 4.4), and for the 20 procedures performed by experts 35.9 (SD, 2.9) (P better than intermediates (P better than beginners (P video-assisted thoracoscopic surgery lobectomy (video-assisted thoracoscopic surgery lobectomy assessment tool) in a clinical setting. The discriminatory ability among expert surgeons, intermediate surgeons, and beginners proved highly significant. The video-assisted thoracoscopic surgery lobectomy assessment tool could be an important aid in the future training and certification of thoracic surgeons. Copyright © 2018 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

Game on… girls: associations between co-playing video games and adolescent behavioral and family outcomes.

Science.gov (United States)

Coyne, Sarah M; Padilla-Walker, Laura M; Stockdale, Laura; Day, Randal D

2011-08-01

Video game use has been associated with several behavioral and health outcomes for adolescents. The aim of the current study was to assess the relationship between parental co-play of video games and behavioral and family outcomes. Participants consisted of 287 adolescents and their parents who completed a number of video game-, behavioral-, and family-related questionnaires as part of a wider study. Most constructs included child, mother, and father reports. At the bivariate level, time spent playing video games was associated with several negative outcomes, including heightened internalizing and aggressive behavior and lowered prosocial behavior. However, co-playing video games with parents was associated with decreased levels of internalizing and aggressive behaviors, and heightened prosocial behavior for girls only. Co-playing video games was also marginally related to parent-child connectedness for girls, even after controlling for age-inappropriate games played with parents. This is the first study to show positive associations for co-playing video games between girls and their parents. Copyright © 2011 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

Learning Science Through Digital Video: Views on Watching and Creating Videos

Science.gov (United States)

Wade, P.; Courtney, A. R.

2013-12-01

In science, the use of digital video to document phenomena, experiments and demonstrations has rapidly increased during the last decade. The use of digital video for science education also has become common with the wide availability of video over the internet. However, as with using any technology as a teaching tool, some questions should be asked: What science is being learned from watching a YouTube clip of a volcanic eruption or an informational video on hydroelectric power generation? What are student preferences (e.g. multimedia versus traditional mode of delivery) with regard to their learning? This study describes 1) the efficacy of watching digital video in the science classroom to enhance student learning, 2) student preferences of instruction with regard to multimedia versus traditional delivery modes, and 3) the use of creating digital video as a project-based educational strategy to enhance learning. Undergraduate non-science majors were the primary focus group in this study. Students were asked to view video segments and respond to a survey focused on what they learned from the segments. Additionally, they were asked about their preference for instruction (e.g. text only, lecture-PowerPoint style delivery, or multimedia-video). A majority of students indicated that well-made video, accompanied with scientific explanations or demonstration of the phenomena was most useful and preferred over text-only or lecture instruction for learning scientific information while video-only delivery with little or no explanation was deemed not very useful in learning science concepts. The use of student generated video projects as learning vehicles for the creators and other class members as viewers also will be discussed.

Association between duration of playing video games and bone mineral density in Chinese adolescents.

Science.gov (United States)

Shao, Haiyu; Xu, Shaonan; Zhang, Jun; Zheng, Jiayin; Chen, Jinping; Huang, Yazeng; Ru, Bin; Jin, Yongming; Zhang, Qi; Ying, Qifeng

2015-01-01

The aim of the study was to investigate the association between duration of playing video games and bone mineral density (BMD) in Chinese adolescents. Three hundred eighty-four Chinese adolescents aged 14-18 yr (148 males and 236 females) were analyzed. Anthropometric measurements were obtained using standard procedures. Total body and regional BMD were measured using dual-energy X-ray absorptiometry. Duration of playing video games, defined as hours per day, was measured by a self-report questionnaire. We examined the association between duration of playing video games and BMD using multiple linear regression analysis. After adjustment for age, sex, pubertal stage, parental education, body mass index, adolescents with longer video game duration were more likely to have lower legs, trunk, pelvic, spine, and total BMD (p video game was negatively associated with BMD in Chinese adolescents. These findings provide support for reducing duration of playing video games as a possible means to increase BMD in adolescents. Future research is needed to elucidate the underlined mechanisms linking playing video games and osteoporosis. Copyright © 2015 The International Society for Clinical Densitometry. Published by Elsevier Inc. All rights reserved.

Genetic diversity of the Mycobacterium tuberculosis Complex in San Luis Potosí, México

Science.gov (United States)

2013-01-01

Background Although epidemiologic and socioeconomic criteria and biomedical risk factors indicate high-priority for tuberculosis (TB) control in Mexico, molecular epidemiology studies of the disease in the country are scarce. Methods Complete sociodemographic and clinical data were obtained from 248 of the 432 pulmonary TB (PTB) cases confirmed from 2006 to 2010 on the population under epidemiological surveillance in the state of San Luis Potosí, México. From most PTB cases with complete data Mycobacterium tuberculosis complex (MTC) isolates were recovered and their spoligotypes, lineages and families, geographic distribution and drug resistance determined. Results Pulmonary tuberculosis incidence ranged from 2.4 to 33.4 (cases per 100,000 inhabitants) in the six state sanitary jurisdictions that were grouped in regions of low (jurisdictions I-II-III), intermediate (jurisdictions IV-V) and high incidence (jurisdiction VI) with 6.2, 17.3 and 33.4 rates, respectively. Most patients were poor, 50-years-median-age males and housewives. Among the 237 MTC spoligotyped isolates, 232 corresponded to M. tuberculosis (104 spoligotypes in 24 clusters) and five to M. bovis. The predominant Euro-American lineage was distributed all over the state, the East-Asian lineage (Beijing family) in the capital city, the Indo-Oceanic (Manila family) in eastern localities, and M. bovis in rural localities. Conclusions In San Luis Potosí TB affects mainly poor male adults and is caused by M. tuberculosis and to a minor extent by M. bovis. There is great genotypic diversity among M. tuberculosis strains, the Euro-American lineage being much more prevalent than the Indo-Oceanic and East-Asian lineages. The frequency of resistant strains is relatively low and not associated to any particular lineage. PMID:23635381

1959: los intentos de derrocamiento de las dictaduras de Trujillo, Stroessner y Luis Somoza

Directory of Open Access Journals (Sweden)

María Dolores Ferrero Blanco

2016-03-01

Full Text Available El triunfo de la revolución cubana trajo, entre sus múltiples consecuencias, la reanimación de la oposición a las tres dictaduras fuertes en 1959: la República Dominicana, Nicaragua y Paraguay. En el presente artículo se analizan las características generales de las mismas, los paralelismos y diferencias entre Trujillo, Stroessner y Somoza, al tiempo que se exponen los diversos intentos de los opositores exiliados para acabar con los regímenes tiránicos implantados en sus respectivos países. Las fuentes utilizadas proceden de los archivos nacionales y de relaciones exteriores, especialmente la documentación diplomática, que aporta una visión singular de los embajadores dependiendo de los destinos. Palabras clave: Rafael Leónidas Trujillo, Luis Somoza, Alfredo Stroessner, dictaduras iberoamericanas, revolución cubana, oposición a las dictaduras._______________________________Abstract: Cuban revolution success brought, among its multiple consequences, the liveliness of the political opposition against the three dictatorships in 1959: the Dominican Republic, Nicaragua and Paraguay. In the present article it is analyzed their general characteristics of the same ones, the differences between Trujillo, Stroessner and the Somoza's, as same as it is exposed the several attempts of the exiles op-ponents to end the implanted tyrannies' regimes in their respective countries. The sources used come from the national archives and foreign relations, especially the diplomatic docu-mentation, that contributes with a singular vision of the ambassadors depending on their destinies, an optics that serves us to know the relations established between the three dictators.Keywords: Rafael Leónidas Trujillo, Luis Somoza, Alfredo Stroessner, latinoamerican dictatorships, Cuban Revolution, dictatorships political opposition.    

Adolescents' exposure to tobacco and alcohol content in YouTube music videos.

Science.gov (United States)

Cranwell, Jo; Murray, Rachael; Lewis, Sarah; Leonardi-Bee, Jo; Dockrell, Martin; Britton, John

2015-04-01

To quantify tobacco and alcohol content, including branding, in popular contemporary YouTube music videos; and measure adolescent exposure to such content. Ten-second interval content analysis of alcohol, tobacco or electronic cigarette imagery in all UK Top 40 YouTube music videos during a 12-week period in 2013/14; on-line national survey of adolescent viewing of the 32 most popular high-content videos. Great Britain. A total of 2068 adolescents aged 11-18 years who completed an on-line survey. Occurrence of alcohol, tobacco and electronic cigarette use, implied use, paraphernalia or branding in music videos and proportions and estimated numbers of adolescents who had watched sampled videos. Alcohol imagery appeared in 45% [95% confidence interval (CI) = 33-51%] of all videos, tobacco in 22% (95% CI = 13-27%) and electronic cigarettes in 2% (95% CI = 0-4%). Alcohol branding appeared in 7% (95% CI = 2-11%) of videos, tobacco branding in 4% (95% CI = 0-7%) and electronic cigarettes in 1% (95% CI = 0-3%). The most frequently observed alcohol, tobacco and electronic cigarette brands were, respectively, Absolut Tune, Marlboro and E-Lites. At least one of the 32 most popular music videos containing alcohol or tobacco content had been seen by 81% (95% CI = 79%, 83%) of adolescents surveyed, and of these 87% (95% CI = 85%, 89%) had re-watched at least one video. The average number of videos seen was 7.1 (95% CI = 6.8, 7.4). Girls were more likely to watch and also re-watch the videos than boys, P branding. © 2014 The Authors. Addiction published by John Wiley & Sons Ltd on behalf of Society for the Study of Addiction.

Video Design Games

DEFF Research Database (Denmark)

Smith, Rachel Charlotte; Christensen, Kasper Skov; Iversen, Ole Sejer

We introduce Video Design Games to train educators in teaching design. The Video Design Game is a workshop format consisting of three rounds in which participants observe, reflect and generalize based on video snippets from their own practice. The paper reports on a Video Design Game workshop...... in which 25 educators as part of a digital fabrication and design program were able to critically reflect on their teaching practice....

Alzheimer's Disease in Social Media: Content Analysis of YouTube Videos.

Science.gov (United States)

Tang, Weizhou; Olscamp, Kate; Choi, Seul Ki; Friedman, Daniela B

2017-10-19

and viewers' interests. YouTube videos on AD could be beneficial if the messages delivered meet users' needs and provide mobilizing information for further resources. Study findings will be useful to government agencies, researchers, nonprofit organizations that promote information about AD, and those responsible for social media to provide useful and accurate health information for the public. ©Weizhou Tang, Kate Olscamp, Seul Ki Choi, Daniela B Friedman. Originally published in the Interactive Journal of Medical Research (http://www.i-jmr.org/), 19.10.2017.

Presence of exotic birds in San Luis Potosi city, Mexican Plateau

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Ramírez-Albores, J.E.

2015-01-01

Full Text Available We recorded 12 exotic bird species in San Luis Potosi, Mexico and adjacent areas. Obtained data were collected during the period August 2012 to August 2013. From the total of recorded species, eight are confirmations (Anas platyrhynchos domesticus, Cairina moschata, Bubulcus ibis, Columba livia, Sturnus vulgaris, Turdus rufopalliatus, Quiscalus mexicanus and Passer domesticus and four are new records (Aratinga canicularis, Amazona oratrix, A. autumnalis and Cyanocorax yncas. Although not all exotic species represent a risk because of the lack of the necessary resources for the establishment of abundant viable populations, it is important to publicize their status in the region. Therefore, knowing the presence of exotic species in a new distribution area is important for monitoring its establishment and colonization, and defining management, control and eradication programs of these species, along with environmental education programs that would lead to a better understanding of impacts that these species can cause.

Petrological and geochemical characterization of the plutonic rocks of the Sierra de La Aguada, Province of San Luis, Argentina: Genetic implications with the Famatinian magmatic arc

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E. Cristofolini

2017-07-01

Full Text Available This study presents a synthesis on the geology of the crystalline complex that constitute the Sierra de la Aguada, San Luis province, Argentine, from an approach based on field relations, petrologic and structural features and geochemical characteristic. This mountain range exposes a basement dominated by intermediate to mafic calcalkaline igneous rocks and peraluminous felsic granitoids, both emplaced in low to medium grade metamorphic rocks stabilized under low amphibolite facies. All this lithological terrane has been grouped in the El Carrizal-La Aguada Complex. Field relations, petrographic characterization and geochemical comparison of the plutonic rocks from the study area with those belonging to the Ordovician Famatinian suit exposed in the Sierra Grande de San Luis, suggest a genetic and temporal relation linked to the development of the Famatinian magmatic arc.

Clima y compromiso organizacional en una mediana empresa manufacturera de San Luis Potosí, S.L.P.

OpenAIRE

Crespo Bravo, Carolina

2016-01-01

Este trabajo tiene como objetivo principal analizar la relación que existe entre clima y compromiso organizacional y de estos con las características personales. La muestra se integró con 80 trabajadores de una mediana empresa manufacturera ubicada en la ciudad de San Luis Potosí. Se realizó un estudio empírico transversal aplicando cuestionarios para clima organizacional de Araujo et al. (2011), el cual se construyó con características inherentes a las dimensiones: a) estilo de geren...

Flip Video for Dummies

CERN Document Server

Hutsko, Joe

2010-01-01

The full-color guide to shooting great video with the Flip Video camera. The inexpensive Flip Video camera is currently one of the hottest must-have gadgets. It's portable and connects easily to any computer to transfer video you shoot onto your PC or Mac. Although the Flip Video camera comes with a quick-start guide, it lacks a how-to manual, and this full-color book fills that void! Packed with full-color screen shots throughout, Flip Video For Dummies shows you how to shoot the best possible footage in a variety of situations. You'll learn how to transfer video to your computer and then edi

«In favor of happiness»: the legacy of the Enlightenment in the poetry of Luis García Montero «Partidario de la felicidad»: el horizonte de la Ilustración en la poesía de Luis García Montero

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Araceli IRAVEDRA

2012-06-01

Full Text Available The most celebrated book of Luis García Montero, Habitaciones separadas (1994, includes a dramatic monologue starring the figure of Jovellanos. Far from an anectodal fact, the presence of the asturian intellectual in this point of the lyric biography of García Montero comes to ratify the importance that the enlightened tradition has acquired in the poetic system of the author from Granada, main theoretical mentor of the so called poetry of experience. Following the reading suggested by Luis García Montero, we systematize the enlightened foundations of this aesthetic trend, which would find its modern roots in some capital notions of the eighteen century doctrine. Furthermore, we attempt to show how far those enlightened categories finally conform an axiological canon and reinforce García Montero’s theoretical opinion in favour of the value of the trade as an effective intervention of the poet in the social order. Finally, we suggest an interpretation of the «El insomnio de Jovellanos» in the light of the enlightened reading of the Modernity that the poet postulates in his essayistic discourse, a Modernity aimed to the transformation of the present against the repeated decrees of the end of History.El libro tal vez más celebrado de Luis García Montero, Habitaciones separadas (1994, incorpora un monólogo dramático protagonizado por la figura de Jovellanos. Lejos de tratarse de un dato anecdótico, la compañía del asturiano en este punto de la biografía lírica de García Montero no viene sino a rubricar el predicamento que la tradición ilustrada ha conquistado en el sistema poético del autor granadino, principal mentor teórico de la llamada poesía de la experiencia. A la zaga de la lectura propuesta por Luis García Montero, efectuamos una sistematización de los fundamentos ilustrados de dicha corriente estética, que hallaría sus raíces modernas en algunas nociones capitales de la preceptiva dieciochesca. Además, tratamos

Hierarchical video summarization

Science.gov (United States)

Ratakonda, Krishna; Sezan, M. Ibrahim; Crinon, Regis J.

1998-12-01

We address the problem of key-frame summarization of vide in the absence of any a priori information about its content. This is a common problem that is encountered in home videos. We propose a hierarchical key-frame summarization algorithm where a coarse-to-fine key-frame summary is generated. A hierarchical key-frame summary facilitates multi-level browsing where the user can quickly discover the content of the video by accessing its coarsest but most compact summary and then view a desired segment of the video with increasingly more detail. At the finest level, the summary is generated on the basis of color features of video frames, using an extension of a recently proposed key-frame extraction algorithm. The finest level key-frames are recursively clustered using a novel pairwise K-means clustering approach with temporal consecutiveness constraint. We also address summarization of MPEG-2 compressed video without fully decoding the bitstream. We also propose efficient mechanisms that facilitate decoding the video when the hierarchical summary is utilized in browsing and playback of video segments starting at selected key-frames.

A systematic review of methods for studying consumer health YouTube videos, with implications for systematic reviews

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Margaret Sampson

2013-09-01

Full Text Available Background. YouTube is an increasingly important medium for consumer health information – with content provided by healthcare professionals, government and non-government organizations, industry, and consumers themselves. It is a rapidly developing area of study for healthcare researchers. We examine the methods used in reviews of YouTube consumer health videos to identify trends and best practices.Methods and Materials. Published reviews of consumer-oriented health-related YouTube videos were identified through PubMed. Data extracted from these studies included type of journal, topic, characteristics of the search, methods of review including number of reviewers and method to achieve consensus between reviewers, inclusion and exclusion criteria, characteristics of the videos reported, ethical oversight, and follow-up.Results. Thirty-three studies were identified. Most were recent and published in specialty journals. Typically, these included more than 100 videos, and were examined by multiple reviewers. Most studies described characteristics of the videos, number of views, and sometime characteristics of the viewers. Accuracy of portrayal of the health issue under consideration was a common focus.Conclusion. Optimal transparency and reproducibility of studies of YouTube health-related videos can be achieved by following guidance designed for systematic review reporting, with attention to several elements specific to the video medium. Particularly when seeking to replicate consumer viewing behavior, investigators should consider the method used to select search terms, and use a snowballing rather than a sequential screening approach. Discontinuation protocols for online screening of relevance ranked search results is an area identified for further development.

A systematic review of methods for studying consumer health YouTube videos, with implications for systematic reviews

Science.gov (United States)

Cumber, Jordi; Li, Claudia; Pound, Catherine M.; Fuller, Ann; Harrison, Denise

2013-01-01

Background. YouTube is an increasingly important medium for consumer health information – with content provided by healthcare professionals, government and non-government organizations, industry, and consumers themselves. It is a rapidly developing area of study for healthcare researchers. We examine the methods used in reviews of YouTube consumer health videos to identify trends and best practices. Methods and Materials. Published reviews of consumer-oriented health-related YouTube videos were identified through PubMed. Data extracted from these studies included type of journal, topic, characteristics of the search, methods of review including number of reviewers and method to achieve consensus between reviewers, inclusion and exclusion criteria, characteristics of the videos reported, ethical oversight, and follow-up. Results. Thirty-three studies were identified. Most were recent and published in specialty journals. Typically, these included more than 100 videos, and were examined by multiple reviewers. Most studies described characteristics of the videos, number of views, and sometime characteristics of the viewers. Accuracy of portrayal of the health issue under consideration was a common focus. Conclusion. Optimal transparency and reproducibility of studies of YouTube health-related videos can be achieved by following guidance designed for systematic review reporting, with attention to several elements specific to the video medium. Particularly when seeking to replicate consumer viewing behavior, investigators should consider the method used to select search terms, and use a snowballing rather than a sequential screening approach. Discontinuation protocols for online screening of relevance ranked search results is an area identified for further development. PMID:24058879

A systematic review of methods for studying consumer health YouTube videos, with implications for systematic reviews.

Science.gov (United States)

Sampson, Margaret; Cumber, Jordi; Li, Claudia; Pound, Catherine M; Fuller, Ann; Harrison, Denise

2013-01-01

Background. YouTube is an increasingly important medium for consumer health information - with content provided by healthcare professionals, government and non-government organizations, industry, and consumers themselves. It is a rapidly developing area of study for healthcare researchers. We examine the methods used in reviews of YouTube consumer health videos to identify trends and best practices. Methods and Materials. Published reviews of consumer-oriented health-related YouTube videos were identified through PubMed. Data extracted from these studies included type of journal, topic, characteristics of the search, methods of review including number of reviewers and method to achieve consensus between reviewers, inclusion and exclusion criteria, characteristics of the videos reported, ethical oversight, and follow-up. Results. Thirty-three studies were identified. Most were recent and published in specialty journals. Typically, these included more than 100 videos, and were examined by multiple reviewers. Most studies described characteristics of the videos, number of views, and sometime characteristics of the viewers. Accuracy of portrayal of the health issue under consideration was a common focus. Conclusion. Optimal transparency and reproducibility of studies of YouTube health-related videos can be achieved by following guidance designed for systematic review reporting, with attention to several elements specific to the video medium. Particularly when seeking to replicate consumer viewing behavior, investigators should consider the method used to select search terms, and use a snowballing rather than a sequential screening approach. Discontinuation protocols for online screening of relevance ranked search results is an area identified for further development.

Literature review on risky driving videos on YouTube: Unknown effects and areas for concern?

Science.gov (United States)

Vingilis, Evelyn; Yıldırım-Yenier, Zümrüt; Vingilis-Jaremko, Larissa; Wickens, Christine; Seeley, Jane; Fleiter, Judy; Grushka, Daniel H

2017-08-18

Entry of terms reflective of extreme risky driving behaviors into the YouTube website yields millions of videos. The majority of the top 20 highly subscribed automotive YouTube websites are focused on high-performance vehicles, high speed, and often risky driving. Moreover, young men are the heaviest users of online video sharing sites, overall streaming more videos, and watching them longer than any other group. The purpose of this article is to review the literature on YouTube videos and risky driving. A systematic search was performed using the following specialized database sources-Scopus, PubMed, Web of Science, ERIC, and Google Scholar-for the years 2005-2015 for articles in the English language. Search words included "YouTube AND driving," "YouTube AND speeding," "YouTube AND racing." No published research was found on the content of risky driving videos or on the effects of these videos on viewers. This literature review presents the current state of our published knowledge on the topic, which includes a review of the effects of mass media on risky driving cognitions; attitudes and behavior; similarities and differences between mass and social media; information on the YouTube platform; psychological theories that could support YouTube's potential effects on driving behavior; and 2 examples of risky driving behaviors ("sidewalk skiing" and "ghost riding the whip") suggestive of varying levels of modeling behavior in subsequent YouTube videos. Every month about 1 billion individuals are reported to view YouTube videos (ebizMBA Guide 2015 ) and young men are the heaviest users, overall streaming more YouTube videos and watching them longer than women and other age groups (Nielsen 2011 ). This group is also the most dangerous group in traffic, engaging in more per capita violations and experiencing more per capita injuries and fatalities (e.g., Parker et al. 1995 ; Reason et al. 1990 ; Transport Canada 2015 ; World Health Organization 2015 ). YouTube also

Youth access, creation, and content of smokeless tobacco ("dip") videos in social media.

Science.gov (United States)

Seidenberg, Andrew B; Rodgers, Elizabeth J; Rees, Vaughan W; Connolly, Gregory N

2012-04-01

Smokeless tobacco (SLT) use among white adolescent males has increased in recent years, and prevalence of SLT use among adolescent males exceeds that for smoking in several U.S. states. Recent reports have described the presence of cigarette-related content on social media Web sites popular among youth; however, little has been reported on SLT content. The YouTube video search engine was searched for the popular SLT brand Skoal, and the first 50 search results were downloaded. Video statistics data were collected for and content analysis was performed on all videos featuring smokeless use (82%). Access to SLT YouTube videos by youth was also determined by assessing whether YouTube permits youth viewing and creation of SLT videos. Mean number of views for videos analyzed was 15,422, and the most watched video had 124,276 views. Descriptions of SLT flavor/smell and social references/interactions were found in 48.8% and 63.4% of videos, respectively. By contrast, references to drug (nicotine) effects (12.2%) and public health messaging (9.8%) were less common. None of the SLT videos in the sample had restrictions that would block youth viewing. In addition, evidence of self-identified youth creating SLT videos was found for 13% of unique users in the sample. YouTube does not restrict youth from creating or viewing "dip videos." Proactive efforts are needed to ensure that YouTube and other online media do not become influential vehicles for tobacco promotion to youth. Copyright © 2012 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

Rate control scheme for consistent video quality in scalable video codec.

Science.gov (United States)

Seo, Chan-Won; Han, Jong-Ki; Nguyen, Truong Q

2011-08-01

Multimedia data delivered to mobile devices over wireless channels or the Internet are complicated by bandwidth fluctuation and the variety of mobile devices. Scalable video coding has been developed as an extension of H.264/AVC to solve this problem. Since scalable video codec provides various scalabilities to adapt the bitstream for the channel conditions and terminal types, scalable codec is one of the useful codecs for wired or wireless multimedia communication systems, such as IPTV and streaming services. In such scalable multimedia communication systems, video quality fluctuation degrades the visual perception significantly. It is important to efficiently use the target bits in order to maintain a consistent video quality or achieve a small distortion variation throughout the whole video sequence. The scheme proposed in this paper provides a useful function to control video quality in applications supporting scalability, whereas conventional schemes have been proposed to control video quality in the H.264 and MPEG-4 systems. The proposed algorithm decides the quantization parameter of the enhancement layer to maintain a consistent video quality throughout the entire sequence. The video quality of the enhancement layer is controlled based on a closed-form formula which utilizes the residual data and quantization error of the base layer. The simulation results show that the proposed algorithm controls the frame quality of the enhancement layer in a simple operation, where the parameter decision algorithm is applied to each frame.

Jorge Luis Borges at two final judgments

Directory of Open Access Journals (Sweden)

Gustavo Ponciano Cunha de Oliveira

2017-06-01

Full Text Available Em 1988, Beatriz Sarlo propõe uma passagem entre duas poéticas em Jorge Luis Borges: de Evaristo Carriego (1930 em direção a Historia universal de la infamia (1935. Os dois textos são “insidiosos”, defende a pesquisadora, porque falsificam as biografias de seus personagens. Porém, a coletânea de 1935 opera em âmbito universal. Este movimento, afirma Sarlo, é portador de um acumulo de prerrogativas, associado à dupla inscrição de Borges: o cidadão do mundo e, simultaneamente, o de um país pensado a partir de Buenos Aires. Neste ensaio, sugerimos uma passagem anterior, evidenciada em “Sentirse en muerte” (1928: do criollismo – o poeta dos arrabaldes, dotado da capacidade de transporte sensível e instalado nos limites de sua cidade imaginada, que busca a representação poética digna de seu conceito de argentinidade – em direção à prosa que alcança o caráter argumentativo-reflexivo dos ensaios sobre o tempo e a eternidade característicos de Borges, início de sua legitimação como “percibidor abstracto del mundo”. Este movimento é também portador de um acúmulo de prerrogativas, dupla inscrição de Borges: como poeta, literato e ensaísta programático do criollismo; como meditador dedicado aos assombros contidos em nossos conceitos de vida, tempo e universo, operador de textos da Filosofia e da Teologia.

Un precedente de psicología conductual en la Universidad Nacional de San Luis (Argentina)

OpenAIRE

Calabresi, Corina; Polanco, Fernando

2008-01-01

En 1970 un grupo de estudiantes de la Licenciatura en Psicología y Pedagogía de la Universidad Nacional de San Luis, Argentina, tuvo un activo compromiso con el desarrollo de una psicología científica basada en la teoría conductual. El trabajo analiza la conformación de dicho movimiento estudiantil y la fundación, por parte del mismo, en 1974 del Centro de Estudios de Psicología Objetiva I. P. Pavlov (CEDEPO), el cual progresivamente cuestionó la hegemonía psicoanalítica en el medio académico...

Part Two: Learning Science Through Digital Video: Student Views on Watching and Creating Videos

Science.gov (United States)

Wade, P.; Courtney, A. R.

2014-12-01

The use of digital video for science education has become common with the wide availability of video imagery. This study continues research into aspects of using digital video as a primary teaching tool to enhance student learning in undergraduate science courses. Two survey instruments were administered to undergraduate non-science majors. Survey One focused on: a) What science is being learned from watching science videos such as a "YouTube" clip of a volcanic eruption or an informational video on geologic time and b) What are student preferences with regard to their learning (e.g. using video versus traditional modes of delivery)? Survey Two addressed students' perspectives on the storytelling aspect of the video with respect to: a) sustaining interest, b) providing science information, c) style of video and d) quality of the video. Undergraduate non-science majors were the primary focus group in this study. Students were asked to view video segments and respond to a survey focused on what they learned from the segments. The storytelling aspect of each video was also addressed by students. Students watched 15-20 shorter (3-15 minute science videos) created within the last four years. Initial results of this research support that shorter video segments were preferred and the storytelling quality of each video related to student learning.

360° virtual reality video for the acquisition of knot tying skills: A randomised controlled trial.

Science.gov (United States)

Yoganathan, S; Finch, D A; Parkin, E; Pollard, J

2018-04-10

360° virtual reality (VR) video is an exciting and evolving field. Current technology promotes a totally immersive, 3-dimensional (3D), 360° experience anywhere in the world using simply a smart phone and virtual reality headset. The potential for its application in the field of surgical education is enormous. The aim of this study was to determine knot tying skills taught with a 360-degree VR video compared to conventional 2D video teaching. This trial was a prospective, randomised controlled study. 40 foundation year doctors (first year postgraduate) were randomised to either the 360-degree VR video (n = 20) or 2D video teaching (n = 20). Participants were given 15 min to watch their allocated video. Ability to tie a single handed reef knot was then assessed against a marking criteria developed for the Royal College of Surgeons, England, (RCSeng) Basic Surgical Skills (BSS) course, by a blinded assessor competent in knot tying. Each candidate then underwent further teaching using Peyton's four step model. Knot tying technique was then re-assessed. Knot tying scores were significantly better in the VR video teaching arm when compared with conventional (median knot score 5.0 vs 4.0 p = 0.04). When used in combination with face to face skills teaching this difference persisted (median knot score 9.5 vs 9.0 p = 0.01). More people in the VR arm constructed a complete reef knot than in the 2D arm following face to face teaching (17/20 vs 12/20). No difference between the groups existed in the time taken to construct a reef knot following video and teaching (median time 31.0s vs 30.5s p = 0.89). This study shows there is significant merit in the application of 360-degree VR video technology in surgical training, both as an independent teaching aid and when used as an adjunct to traditional face to face teaching. Copyright © 2018 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

77 FR 48102 - Closed Captioning and Video Description of Video Programming

Science.gov (United States)

2012-08-13

... Captioning and Video Description of Video Programming AGENCY: Federal Communications Commission. [[Page 48103... show that providing captions on their programming would be economically burdensome. DATES: Effective...) establishing requirements for closed captioning on video programming to ensure access by persons with hearing...

Low-complexity JPEG-based progressive video codec for wireless video transmission

DEFF Research Database (Denmark)

Ukhanova, Ann; Forchhammer, Søren

2010-01-01

This paper discusses the question of video codec enhancement for wireless video transmission of high definition video data taking into account constraints on memory and complexity. Starting from parameter adjustment for JPEG2000 compression algorithm used for wireless transmission and achieving...

Does playing video games improve laparoscopic skills?

Science.gov (United States)

Ou, Yanwen; McGlone, Emma Rose; Camm, Christian Fielder; Khan, Omar A

2013-01-01

A best evidence topic in surgery was written according to a structured protocol. The question addressed was whether playing video games improves surgical performance in laparoscopic procedures. Altogether 142 papers were found using the reported search, of which seven represented the best evidence to answer the clinical question. The details of the papers were tabulated including relevant outcomes and study weaknesses. We conclude that medical students and experienced laparoscopic surgeons with ongoing video game experience have superior laparoscopic skills for simulated tasks in terms of time to completion, improved efficiency and fewer errors when compared to non-gaming counterparts. There is some evidence that this may be due to better psycho-motor skills in gamers, however further research would be useful to demonstrate whether there is a direct transfer of skills from laparoscopic simulators to the operating table. Copyright © 2013 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.

Data Management Rubric for Video Data in Organismal Biology.

Science.gov (United States)

Brainerd, Elizabeth L; Blob, Richard W; Hedrick, Tyson L; Creamer, Andrew T; Müller, Ulrike K

2017-07-01

standards for organismal biology video, and suggest additional metadata that may be useful for some studies. This rubric was developed with substantial input from researchers and students, but still should be viewed as a living document that should be further refined and updated as technology and research practices change. The audience for these standards includes researchers, journals, and granting agencies, and also the developers and curators of databases that may contribute to video data sharing efforts. We offer this project as an example of building community consensus for data management, preservation, and sharing standards, which may be useful for future efforts by the organismal biology research community. © The Author 2017. Published by Oxford University Press on behalf of the Society for Integrative and Comparative Biology.

Exploring the use of entertainment-education YouTube videos focused on infection prevention and control.

Science.gov (United States)

Lim, Kathryn; Kilpatrick, Claire; Storr, Julie; Seale, Holly

2018-06-05

As a communications strategy, education entertainment has been used to inform, influence, and shift societal and individual behaviors. Recently, there has been an increasing number of entertainment-education YouTube videos focused on hand hygiene. However, there is currently no understanding about the quality of these videos; therefore, this study aimed to explore the social media content and user engagement with these videos. The search terms "hand hygiene" and "hand hygiene education" were used to query YouTube. Video content had to be directed at a health care professional audience. Using author designed checklists, each video was systematically evaluated and grouped according to educational usefulness and was subsequently evaluated against the categories of attractiveness, comprehension, and persuasiveness. A total of 400 videos were screened, with 70 videos retained for analysis. Of these, 55.7% (n = 39) were categorized as educationally useful. Overall, educationally useful videos scored higher than noneducationally useful videos across the categories of attractiveness, comprehension, and persuasiveness. Miscommunication of the concept of My 5 Moments for Hand Hygiene was observed in several of the YouTube videos. The availability of educationally useful videos in relation to hand hygiene is evident; however, it is clear that there are opportunities for contributors using this medium to strengthen their alignment with social media best practice principles to maximize the effectiveness, reach, and sustainability of their content. Copyright © 2018 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

Effective Educational Videos: Principles and Guidelines for Maximizing Student Learning from Video Content

Science.gov (United States)

Brame, Cynthia J.

2016-01-01

Educational videos have become an important part of higher education, providing an important content-delivery tool in many flipped, blended, and online classes. Effective use of video as an educational tool is enhanced when instructors consider three elements: how to manage cognitive load of the video; how to maximize student engagement with the video; and how to promote active learning from the video. This essay reviews literature relevant to each of these principles and suggests practical ways instructors can use these principles when using video as an educational tool. PMID:27789532

Visual Resource Analysis for Solar Energy Zones in the San Luis Valley

Energy Technology Data Exchange (ETDEWEB)

Sullivan, Robert [Argonne National Laboratory (ANL), Argonne, IL (United States). Environmental Science Division; Abplanalp, Jennifer M. [Argonne National Laboratory (ANL), Argonne, IL (United States). Environmental Science Division; Zvolanek, Emily [Argonne National Laboratory (ANL), Argonne, IL (United States). Environmental Science Division; Brown, Jeffery [Bureau of Land Management, Washington, DC (United States). Dept. of the Interior

2016-01-01

This report summarizes the results of a study conducted by Argonne National Laboratory’s (Argonne’s) Environmental Science Division for the U.S. Department of the Interior Bureau of Land Management (BLM). The study analyzed the regional effects of potential visual impacts of solar energy development on three BLM-designated solar energy zones (SEZs) in the San Luis Valley (SLV) in Colorado, and, based on the analysis, made recommendations for or against regional compensatory mitigation to compensate residents and other stakeholders for the potential visual impacts to the SEZs. The analysis was conducted as part of the solar regional mitigation strategy (SRMS) task conducted by BLM Colorado with assistance from Argonne. Two separate analyses were performed. The first analysis, referred to as the VSA Analysis, analyzed the potential visual impacts of solar energy development in the SEZs on nearby visually sensitive areas (VSAs), and, based on the impact analyses, made recommendations for or against regional compensatory mitigation. VSAs are locations for which some type of visual sensitivity has been identified, either because the location is an area of high scenic value or because it is a location from which people view the surrounding landscape and attach some level of importance or sensitivity to what is seen from the location. The VSA analysis included both BLM-administered lands in Colorado and in the Taos FO in New Mexico. The second analysis, referred to as the SEZ Analysis, used BLM visual resource inventory (VRI) and other data on visual resources in the former Saguache and La Jara Field Offices (FOs), now contained within the San Luis Valley FO (SLFO), to determine whether the changes in scenic values that would result from the development of utility-scale solar energy facilities in the SEZs would affect the quality and quantity of valued scenic resources in the SLV region as a whole. If the regional effects were judged to be significant, regional

Performance Analysis of Video Transmission Using Sequential Distortion Minimization Method for Digital Video Broadcasting Terrestrial

Directory of Open Access Journals (Sweden)

Novita Astin

2016-12-01

Full Text Available This paper presents about the transmission of Digital Video Broadcasting system with streaming video resolution 640x480 on different IQ rate and modulation. In the video transmission, distortion often occurs, so the received video has bad quality. Key frames selection algorithm is flexibel on a change of video, but on these methods, the temporal information of a video sequence is omitted. To minimize distortion between the original video and received video, we aimed at adding methodology using sequential distortion minimization algorithm. Its aim was to create a new video, better than original video without significant loss of content between the original video and received video, fixed sequentially. The reliability of video transmission was observed based on a constellation diagram, with the best result on IQ rate 2 Mhz and modulation 8 QAM. The best video transmission was also investigated using SEDIM (Sequential Distortion Minimization Method and without SEDIM. The experimental result showed that the PSNR (Peak Signal to Noise Ratio average of video transmission using SEDIM was an increase from 19,855 dB to 48,386 dB and SSIM (Structural Similarity average increase 10,49%. The experimental results and comparison of proposed method obtained a good performance. USRP board was used as RF front-end on 2,2 GHz.

A new visual navigation system for exploring biomedical Open Educational Resource (OER) videos.

Science.gov (United States)

Zhao, Baoquan; Xu, Songhua; Lin, Shujin; Luo, Xiaonan; Duan, Lian

2016-04-01

information, as well as intuitively and conveniently preview essential content of a single or a collection of videos. © The Author 2015. Published by Oxford University Press on behalf of the American Medical Informatics Association. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

High Definition Video Streaming Using H.264 Video Compression

OpenAIRE

Bechqito, Yassine

2009-01-01

This thesis presents high definition video streaming using H.264 codec implementation. The experiment carried out in this study was done for an offline streaming video but a model for live high definition streaming is introduced, as well. Prior to the actual experiment, this study describes digital media streaming. Also, the different technologies involved in video streaming are covered. These include streaming architecture and a brief overview on H.264 codec as well as high definition t...

Online video examination

DEFF Research Database (Denmark)

Qvist, Palle

have large influence on their own teaching, learning and curriculum. The programme offers streamed videos in combination with other learning resources. It is a concept which offers video as pure presentation - video lectures - but also as an instructional tool which gives the students the possibility...... to construct their knowledge, collaboration and communication. In its first years the programme has used Skype video communication for collaboration and communication within and between groups, group members and their facilitators. Also exams have been mediated with the help of Skype and have for all students......, examiners and external examiners been a challenge and opportunity and has brought new knowledge and experience. This paper brings results from a questionnaire focusing on how the students experience the video examination....

Innovative Solution to Video Enhancement

Science.gov (United States)

2001-01-01

Through a licensing agreement, Intergraph Government Solutions adapted a technology originally developed at NASA's Marshall Space Flight Center for enhanced video imaging by developing its Video Analyst(TM) System. Marshall's scientists developed the Video Image Stabilization and Registration (VISAR) technology to help FBI agents analyze video footage of the deadly 1996 Olympic Summer Games bombing in Atlanta, Georgia. VISAR technology enhanced nighttime videotapes made with hand-held camcorders, revealing important details about the explosion. Intergraph's Video Analyst System is a simple, effective, and affordable tool for video enhancement and analysis. The benefits associated with the Video Analyst System include support of full-resolution digital video, frame-by-frame analysis, and the ability to store analog video in digital format. Up to 12 hours of digital video can be stored and maintained for reliable footage analysis. The system also includes state-of-the-art features such as stabilization, image enhancement, and convolution to help improve the visibility of subjects in the video without altering underlying footage. Adaptable to many uses, Intergraph#s Video Analyst System meets the stringent demands of the law enforcement industry in the areas of surveillance, crime scene footage, sting operations, and dash-mounted video cameras.

Super Mario brothers and sisters: Associations between coplaying video games and sibling conflict and affection.

Science.gov (United States)

Coyne, Sarah M; Jensen, Alexander C; Smith, Nathan J; Erickson, Daniel H

2016-02-01

Video games can be played in many different contexts. This study examined associations between coplaying video games between siblings and levels of affection and conflict in the relationship. Participants were 508 adolescents (M age = 16.31 years of age, SD = 1.08) who completed questionnaires on video game use and sibling relationships. Participants were recruited from a large Northwestern city and a moderate city in the Mountain West of the United States. Video games played between siblings were coded by an independent sample to assess levels of physical aggression and prosocial behavior in each game. Playing video games with a sibling was associated with higher levels of sibling affection for both boys and girls, but higher levels of conflict for boys only. Playing a violent video game with a brother was associated with lower levels of conflict in the sibling relationship, whereas playing a prosocial video game was not related to any sibling outcome. The value of video games in sibling relationships will be discussed, with a focus on the type of game and the sex of the adolescent. Copyright © 2015 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

The Outreach Process in the Technical University Luis Vargas Torres, Esmeraldas, Ecuador

Directory of Open Access Journals (Sweden)

Harold Oyarvide-Ramirez

2016-06-01

Full Text Available As part of the transformative process that takes place in the ecuadorian university is research that aims to improve the outreach model at the Technical University Luis Vargas Torres Esmeraldas developed. The need of jobs forces people to venture into small businesses, however, this process is done in an empirical way, without sufficient technical and administrative knowledge that will enable the company to manage efficiently and obtain funding sources. Hence the relevance of the study, which allows guide and train the business sector in order to conduct an efficient management and create new businesses that operate as a means for the transformation of the productive matrix. The research results are: the structure and function of outreach model, the key elements that support the creation of the Center for Business Development and Entrepreneurship Support and the socioeconomic impact achieved from the development of relations among universities, businesses and government.

Luis Álvarez-Gaumé to speak at El Ser Creativo 2011

CERN Multimedia

Jordan Juras

2011-01-01

During the weekend of 19 October, 2011, Madrid will host this year’s El Ser Creativo – a three-day conference celebrating new ideas that can change the world.   Over the course of the conference, 21 speakers will have the chance to share their opinions and ideas for 21 minutes each – the estimated time that the human brain is able to maintain complete focus. Among the Nobel Prize winners, scientists, doctors, and thinkers invited to this year's conference is Luis Álvarez-Gaumé, a theoretical physicist at CERN. Having made significant contributions to the understanding of gravitation, minimal supergravity theory and supersymmetry, Álvarez-Gaumé was an obvious choice to be invited to share his thoughts about the theory and reality of current physics ideas with the conference attendees. A webcast will be available to stream the entire conference live.

The archaeological investigations of 1984 at Trinca “Izvorul lui Luca” site

Directory of Open Access Journals (Sweden)

Oleg Leviţki

2017-09-01

Full Text Available The article presents the archaeological researches carried out at Trinca “Izvorul lui Luca” settlement in 1984. The paper is part of the series of articles initiated by the authors in order to include the research results of this unusual site. The discovered archaeological remains were treated in a complex way, presented on layers, complexes, categories and types. Thus, the discovered complexes were described, the pieces of inventory systematized according to the categories of materials from which they were made, while the ceramics is presented by categories, types and variants. The most relevant findings have been analysed in more detail, being related to those specific of other synchronous or partially synchronic neighbouring cultures. As a result, the existence of a set of artefacts has been established, having analogies in the Hallstattian Carpathian-Nistrian cultural environment and, respectively, in the Middle Danube area.

[Trends of electronic publishing in medicine and life sciences].

Science.gov (United States)

Strelski-Waisman, Neta; Waisman, Dan

2005-09-01

Scientific publication in the electronic media is gaining popularity in academic libraries, research institutions and commercial organizations. The electronic journal may shorten the processes of writing and publication, decrease publication and distribution costs, and enable access from any location in the world. Electronic publications have unique advantages: it is possible to search them, to create hyperlinks to references and footnotes, as well as to information on the web and to include graphics and photographs at a very low cost. Audio, video and tri-dimensional images may also be included. Electronic publishing may also speed up review and publication processes and enable the writer to receive immediate feedback through the web. However, in spite of the advantages, there are certain points that must be considered: accessibility to previously published material is not guaranteed as databases are not always stable and coverage may change without notice. In addition, the price that commercial publishers charge for their services may be very high or be subject to the purchase of a packaged deal that may include unwanted databases. Many issues of copyright and the use of published material are not yet finalized. In this review we discuss the advantages and disadvantages of the electronic scientific publication, the feasibility of keeping appropriate quality and peer-review process, the stability and accessibility of databases managed by the publishers and the acceptance of the electronic format by scientists and clinicians.

The American Psychological Association Task Force assessment of violent video games: Science in the service of public interest.

Science.gov (United States)

Calvert, Sandra L; Appelbaum, Mark; Dodge, Kenneth A; Graham, Sandra; Nagayama Hall, Gordon C; Hamby, Sherry; Fasig-Caldwell, Lauren G; Citkowicz, Martyna; Galloway, Daniel P; Hedges, Larry V

2017-01-01

A task force of experts was convened by the American Psychological Association (APA) to update the knowledge and policy about the impact of violent video game use on potential adverse outcomes. This APA Task Force on Media Violence examined the existing literature, including the meta-analyses in the field, since the last APA report on media violence in 2005. Because the most recent meta-analyses were published in 2010 and reflected work through 2009, the task force conducted a search of the published studies from 2009-2013. These recently published articles were scored and assessed by a systematic evidentiary review, followed by a meta-analysis of the high utility studies, as documented in the evidentiary review. Consistent with the literature that we reviewed, we found that violent video game exposure was associated with: an increased composite aggression score; increased aggressive behavior; increased aggressive cognitions; increased aggressive affect, increased desensitization, and decreased empathy; and increased physiological arousal. The size of the effects was similar to that in prior meta-analyses, suggesting a stable result. Our task force concluded that violent video game use is a risk factor for adverse outcomes, but found insufficient studies to examine any potential link between violent video game use and delinquency or criminal behavior. Our technical report is the basis of this article. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Industrial-Strength Streaming Video.

Science.gov (United States)

Avgerakis, George; Waring, Becky

1997-01-01

Corporate training, financial services, entertainment, and education are among the top applications for streaming video servers, which send video to the desktop without downloading the whole file to the hard disk, saving time and eliminating copyrights questions. Examines streaming video technology, lists ten tips for better net video, and ranks…

Video modeling by experts with video feedback to enhance gymnastics skills.

Science.gov (United States)

Boyer, Eva; Miltenberger, Raymond G; Batsche, Catherine; Fogel, Victoria

2009-01-01

The effects of combining video modeling by experts with video feedback were analyzed with 4 female competitive gymnasts (7 to 10 years old) in a multiple baseline design across behaviors. During the intervention, after the gymnast performed a specific gymnastics skill, she viewed a video segment showing an expert gymnast performing the same skill and then viewed a video replay of her own performance of the skill. The results showed that all gymnasts demonstrated improved performance across three gymnastics skills following exposure to the intervention.

Nasogastric tube placement with video-guided laryngoscope: A manikin simulator study.

Science.gov (United States)

Lee, Xiao-Lun; Yeh, Li-Chun; Jin, Yau-Dung; Chen, Chun-Chih; Lee, Ming-Ho; Huang, Ping-Wun

2017-08-01

This study aimed to investigate video-guided laryngoscopy for nasogastric tube placement. This was an observational comparative study performed in a hospital. The participants included volunteers from the medical staff (physicians and nurses) experienced with nasogastric intubation, and non-medical staff (medical students, pharmacists and emergent medical technicians) with knowledge of nasogastric intubation but lacking procedural experience. Medical and non-medical hospital staff performed manual, laryngoscope-assisted and video-guided laryngoscope nasogastric intubation both in the presence and in the absence of an endotracheal tube, using a manikin. Nasogastric intubation times were compared between groups and methods. Using the video-guided laryngoscope resulted in a significantly shorter intubation time compared to the other 2 methods, both with and without an endotracheal tube, for the medical and non-medical staff alike (all p guided laryngoscope without endotracheal intubation, direct laryngoscope with endotracheal intubation and video-guided laryngoscope with endotracheal intubation compared to manual intubation without endotracheal intubation (0.49, 0.63 and 0.72 vs. 5.63, respectively, p ≤ 0.008). For non-medical staff, nasogastric intubation time was significantly shorter using video-guided laryngoscope without endotracheal intubation, direct laryngoscope with endotracheal intubation and video-guided laryngoscope with endotracheal intubation compared to manual intubation without endotracheal intubation (1.67, 1.58 and 0.95 vs. 6.9, respectively, p ≤ 0.002). And mean nasogastric intubation time for video-guided laryngoscope endotracheal intubation was significantly shorter for medical staff than for non-medical staff (0.49 vs. 1.67 min, respectively, p = 0.041). Video-guided laryngoscope reduces nasogastric intubation time compared to manual and direct laryngoscope intubation, which promotes a consistent technique when performed by

A Novel Quantum Video Steganography Protocol with Large Payload Based on MCQI Quantum Video

Science.gov (United States)

Qu, Zhiguo; Chen, Siyi; Ji, Sai

2017-11-01

As one of important multimedia forms in quantum network, quantum video attracts more and more attention of experts and scholars in the world. A secure quantum video steganography protocol with large payload based on the video strip encoding method called as MCQI (Multi-Channel Quantum Images) is proposed in this paper. The new protocol randomly embeds the secret information with the form of quantum video into quantum carrier video on the basis of unique features of video frames. It exploits to embed quantum video as secret information for covert communication. As a result, its capacity are greatly expanded compared with the previous quantum steganography achievements. Meanwhile, the new protocol also achieves good security and imperceptibility by virtue of the randomization of embedding positions and efficient use of redundant frames. Furthermore, the receiver enables to extract secret information from stego video without retaining the original carrier video, and restore the original quantum video as a follow. The simulation and experiment results prove that the algorithm not only has good imperceptibility, high security, but also has large payload.

Quentin Skinner, Staten og friheten. Oslo: Res Publica, 2011. José Luis Martí and Philip Pettit, A Political Philosophy in Public Life. Civic Republicanism in Zapatero's Spain. Princeton: Princeton University Press, 2010 (Simon Laumann Jørgensen)

DEFF Research Database (Denmark)

Jørgensen, Simon Laumann

2012-01-01

Anmeldelse af Quentin Skinner, Staten og friheten, Oslo: Res Publica 2011, 199 NOK & José Luis Martí & Philip Pettit, A Political Philosophy in Public Life. Civic Republicanism in Zapatero’s Spain, Princeton: Princeton University Press 2010, $ 24.95......Anmeldelse af Quentin Skinner, Staten og friheten, Oslo: Res Publica 2011, 199 NOK & José Luis Martí & Philip Pettit, A Political Philosophy in Public Life. Civic Republicanism in Zapatero’s Spain, Princeton: Princeton University Press 2010, $ 24.95...

Misleading Claims About Tobacco Products in YouTube Videos: Experimental Effects of Misinformation on Unhealthy Attitudes.

Science.gov (United States)

Albarracin, Dolores; Romer, Daniel; Jones, Christopher; Hall Jamieson, Kathleen; Jamieson, Patrick

2018-06-29

Recent content analyses of YouTube postings reveal a proliferation of user generated videos with misleading statements about the health consequences of various types of nontraditional tobacco use (eg, electronic cigarettes; e-cigarettes). This research was aimed at obtaining evidence about the potential effects of YouTube postings about tobacco products on viewers' attitudes toward these products. A sample of young adults recruited online (N=350) viewed one of four highly viewed YouTube videos containing misleading health statements about chewing tobacco, e-cigarettes, hookahs, and pipe smoking, as well as a control YouTube video unrelated to tobacco products. The videos about e-cigarettes and hookahs led to more positive attitudes toward the featured products than did control videos. However, these effects did not fully translate into attitudes toward combustive cigarette smoking, although the pipe video led to more positive attitudes toward combustive smoking than did the chewing and the hookah videos, and the e-cigarette video led to more positive attitudes toward combustive cigarette smoking than did the chewing video. This research revealed young people's reactions to misleading claims about tobacco products featured in popular YouTube videos. Policy implications are discussed. ©Dolores Albarracin, Daniel Romer, Christopher Jones, Kathleen Hall Jamieson, Patrick Jamieson. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 29.06.2018.

Social Properties of Mobile Video

Science.gov (United States)

Mitchell, April Slayden; O'Hara, Kenton; Vorbau, Alex

Mobile video is now an everyday possibility with a wide array of commercially available devices, services, and content. These new technologies have created dramatic shifts in the way video-based media can be produced, consumed, and delivered by people beyond the familiar behaviors associated with fixed TV and video technologies. Such technology revolutions change the way users behave and change their expectations in regards to their mobile video experiences. Building upon earlier studies of mobile video, this paper reports on a study using diary techniques and ethnographic interviews to better understand how people are using commercially available mobile video technologies in their everyday lives. Drawing on reported episodes of mobile video behavior, the study identifies the social motivations and values underpinning these behaviors that help characterize mobile video consumption beyond the simplistic notion of viewing video only to kill time. This paper also discusses the significance of user-generated content and the usage of video in social communities through the description of two mobile video technology services that allow users to create and share content. Implications for adoption and design of mobile video technologies and services are discussed as well.

Video Podcasts

DEFF Research Database (Denmark)

Nortvig, Anne Mette; Sørensen, Birgitte Holm

2016-01-01

This project’s aim was to support and facilitate master’s students’ preparation and collaboration by making video podcasts of short lectures available on YouTube prior to students’ first face-to-face seminar. The empirical material stems from group interviews, from statistical data created through...... YouTube analytics and from surveys answered by students after the seminar. The project sought to explore how video podcasts support learning and reflection online and how students use and reflect on the integration of online activities in the videos. Findings showed that students engaged actively...

Video games.

Science.gov (United States)

Funk, Jeanne B

2005-06-01

The video game industry insists that it is doing everything possible to provide information about the content of games so that parents can make informed choices; however, surveys indicate that ratings may not reflect consumer views of the nature of the content. This article describes some of the currently popular video games, as well as developments that are on the horizon, and discusses the status of research on the positive and negative impacts of playing video games. Recommendations are made to help parents ensure that children play games that are consistent with their values.

Ciudades invisibles. Tijuana en la obra de Federico Campbell, Luis Humberto Crosthwaite, Francisco Morales y Heriberto Yépez

Directory of Open Access Journals (Sweden)

Diana Palaversich

2014-06-01

This essay employs the concepts of “the haunted place” (Michel de Certeau and “the sense of place” (Kent Ryden to examine the representation of the US-Mexico border in the works of Federico Campbell, Luis Humberto Crosthwaite, Francisco Morales and Heriberto Yépez. While Campbell, Crosthwaite, and Morales represent Tijuana as a place imbued with personal and collective history, Yépez, in his most recent novel, Al otro lado, offers an apocalyptic vision of this border city, defined by narcoviolence, illegal immigration, and militarization.

«In favor of happiness»: the legacy of the Enlightenment in the poetry of Luis García Montero

Directory of Open Access Journals (Sweden)

Araceli IRAVEDRA

2012-02-01

Full Text Available The most celebrated book of Luis García Montero, Habitaciones separadas (1994, includes a dramatic monologue starring the figure of Jovellanos. Far from an anectodal fact, the presence of the asturian intellectual in this point of the lyric biography of García Montero comes to ratify the importance that the enlightened tradition has acquired in the poetic system of the author from Granada, main theoretical mentor of the so called poetry of experience. Following the reading suggested by Luis García Montero, we systematize the enlightened foundations of this aesthetic trend, which would find its modern roots in some capital notions of the eighteen century doctrine. Furthermore, we attempt to show how far those enlightened categories finally conform an axiological canon and reinforce García Montero’s theoretical opinion in favour of the value of the trade as an effective intervention of the poet in the social order. Finally, we suggest an interpretation of the «El insomnio de Jovellanos» in the light of the enlightened reading of the Modernity that the poet postulates in his essayistic discourse, a Modernity aimed to the transformation of the present against the repeated decrees of the end of History.

Video steganography based on bit-plane decomposition of wavelet-transformed video

Science.gov (United States)

Noda, Hideki; Furuta, Tomofumi; Niimi, Michiharu; Kawaguchi, Eiji

2004-06-01

This paper presents a steganography method using lossy compressed video which provides a natural way to send a large amount of secret data. The proposed method is based on wavelet compression for video data and bit-plane complexity segmentation (BPCS) steganography. BPCS steganography makes use of bit-plane decomposition and the characteristics of the human vision system, where noise-like regions in bit-planes of a dummy image are replaced with secret data without deteriorating image quality. In wavelet-based video compression methods such as 3-D set partitioning in hierarchical trees (SPIHT) algorithm and Motion-JPEG2000, wavelet coefficients in discrete wavelet transformed video are quantized into a bit-plane structure and therefore BPCS steganography can be applied in the wavelet domain. 3-D SPIHT-BPCS steganography and Motion-JPEG2000-BPCS steganography are presented and tested, which are the integration of 3-D SPIHT video coding and BPCS steganography, and that of Motion-JPEG2000 and BPCS, respectively. Experimental results show that 3-D SPIHT-BPCS is superior to Motion-JPEG2000-BPCS with regard to embedding performance. In 3-D SPIHT-BPCS steganography, embedding rates of around 28% of the compressed video size are achieved for twelve bit representation of wavelet coefficients with no noticeable degradation in video quality.

Reduction in Fall Rate in Dementia Managed Care Through Video Incident Review: Pilot Study.

Science.gov (United States)

Bayen, Eleonore; Jacquemot, Julien; Netscher, George; Agrawal, Pulkit; Tabb Noyce, Lynn; Bayen, Alexandre

2017-10-17

Falls of individuals with dementia are frequent, dangerous, and costly. Early detection and access to the history of a fall is crucial for efficient care and secondary prevention in cognitively impaired individuals. However, most falls remain unwitnessed events. Furthermore, understanding why and how a fall occurred is a challenge. Video capture and secure transmission of real-world falls thus stands as a promising assistive tool. The objective of this study was to analyze how continuous video monitoring and review of falls of individuals with dementia can support better quality of care. A pilot observational study (July-September 2016) was carried out in a Californian memory care facility. Falls were video-captured (24×7), thanks to 43 wall-mounted cameras (deployed in all common areas and in 10 out of 40 private bedrooms of consenting residents and families). Video review was provided to facility staff, thanks to a customized mobile device app. The outcome measures were the count of residents' falls happening in the video-covered areas, the acceptability of video recording, the analysis of video review, and video replay possibilities for care practice. Over 3 months, 16 falls were video-captured. A drop in fall rate was observed in the last month of the study. Acceptability was good. Video review enabled screening for the severity of falls and fall-related injuries. Video replay enabled identifying cognitive-behavioral deficiencies and environmental circumstances contributing to the fall. This allowed for secondary prevention in high-risk multi-faller individuals and for updated facility care policies regarding a safer living environment for all residents. Video monitoring offers high potential to support conventional care in memory care facilities. ©Eleonore Bayen, Julien Jacquemot, George Netscher, Pulkit Agrawal, Lynn Tabb Noyce, Alexandre Bayen. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 17.10.2017.

Statistical Analysis of Video Frame Size Distribution Originating from Scalable Video Codec (SVC

Directory of Open Access Journals (Sweden)

Sima Ahmadpour

2017-01-01

Full Text Available Designing an effective and high performance network requires an accurate characterization and modeling of network traffic. The modeling of video frame sizes is normally applied in simulation studies and mathematical analysis and generating streams for testing and compliance purposes. Besides, video traffic assumed as a major source of multimedia traffic in future heterogeneous network. Therefore, the statistical distribution of video data can be used as the inputs for performance modeling of networks. The finding of this paper comprises the theoretical definition of distribution which seems to be relevant to the video trace in terms of its statistical properties and finds the best distribution using both the graphical method and the hypothesis test. The data set used in this article consists of layered video traces generating from Scalable Video Codec (SVC video compression technique of three different movies.

Robust Adaptable Video Copy Detection

DEFF Research Database (Denmark)

Assent, Ira; Kremer, Hardy

2009-01-01

in contrast). Our query processing combines filtering and indexing structures for efficient multistep computation of video copies under this model. We show that our model successfully identifies altered video copies and does so more reliably than existing models.......Video copy detection should be capable of identifying video copies subject to alterations e.g. in video contrast or frame rates. We propose a video copy detection scheme that allows for adaptable detection of videos that are altered temporally (e.g. frame rate change) and/or visually (e.g. change...

Video-assisted thoracic surgery mediastinal germ cell metastasis resection.

Science.gov (United States)

Nardini, Marco; Jayakumar, Shruti; Migliore, Marcello; Dunning, Joel

2017-07-01

Thoracoscopy can be safely used for dissection of masses in the visceral mediastinum. We report the case of a 31-year-old man affected by metastatic germ cell tumour and successfully treated with a 3-port posterior approach video-assisted thoracic surgery. © The Author 2017. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

Development of P4140 video data wall projector; Video data wall projector

Energy Technology Data Exchange (ETDEWEB)

Watanabe, H.; Inoue, H. [Toshiba Corp., Tokyo (Japan)

1998-12-01

The P4140 is a 3 cathode-ray tube (CRT) video data wall projector for super video graphics array (SVGA) signals. It is used as an image display unit, providing a large screen when several sets are put together. A high-quality picture has been realized by higher resolution and improved color uniformity technology. A new convergence adjustment system has also been developed through the optimal combination of digital and analog technologies. This video data wall installation has been greatly enhanced by the automation of cubes and cube performance settings. The P4140 video data wall projector can be used for displaying not only data but video as well. (author)

Advanced video coding systems

CERN Document Server

Gao, Wen

2015-01-01

This comprehensive and accessible text/reference presents an overview of the state of the art in video coding technology. Specifically, the book introduces the tools of the AVS2 standard, describing how AVS2 can help to achieve a significant improvement in coding efficiency for future video networks and applications by incorporating smarter coding tools such as scene video coding. Topics and features: introduces the basic concepts in video coding, and presents a short history of video coding technology and standards; reviews the coding framework, main coding tools, and syntax structure of AV

Intelligent video surveillance systems

CERN Document Server

Dufour, Jean-Yves

2012-01-01

Belonging to the wider academic field of computer vision, video analytics has aroused a phenomenal surge of interest since the current millennium. Video analytics is intended to solve the problem of the incapability of exploiting video streams in real time for the purpose of detection or anticipation. It involves analyzing the videos using algorithms that detect and track objects of interest over time and that indicate the presence of events or suspect behavior involving these objects.The aims of this book are to highlight the operational attempts of video analytics, to identify possi

Masculinidad y violencia en el nuevo cine mexicano. Las películas de Luis Estrada

Directory of Open Access Journals (Sweden)

Claudia Elizabeth Puente

2016-01-01

Full Text Available En este artículo exploraremos la conformación de las masculinidades a través de las representaciones cinematográficas en América latina, específicamente en la obra del mexicano Luis Estrada, parte fundamental del llamado Nuevo cine mexicano en sus obras exhibidas entre 1999 y 2010. Aunque el universo de estudios de masculinidades es cada vez más amplio, las representaciones cinematográficas no han sidomuy exploradas. Este artículo pretende hacer un análisis de las representaciones masculinas y su relación con las representaciones femeninas en el nuevo cine mexicano en un contexto de violencia desde una perspectiva crítica feminista.

Video Vectorization via Tetrahedral Remeshing.

Science.gov (United States)

Wang, Chuan; Zhu, Jie; Guo, Yanwen; Wang, Wenping

2017-02-09

We present a video vectorization method that generates a video in vector representation from an input video in raster representation. A vector-based video representation offers the benefits of vector graphics, such as compactness and scalability. The vector video we generate is represented by a simplified tetrahedral control mesh over the spatial-temporal video volume, with color attributes defined at the mesh vertices. We present novel techniques for simplification and subdivision of a tetrahedral mesh to achieve high simplification ratio while preserving features and ensuring color fidelity. From an input raster video, our method is capable of generating a compact video in vector representation that allows a faithful reconstruction with low reconstruction errors.

Trends in Scientific Literature on Addiction to the Internet, Video Games, and Cell Phones from 2006 to 2010.

Science.gov (United States)

Carbonell, Xavier; Guardiola, Elena; Fuster, Héctor; Gil, Frederic; Panova, Tayana

2016-01-01

The goals of the present work were to retrieve the scientific articles published on addiction to the Internet, video games, and cell phones and to analyze the pattern of publications in this area (who is doing the research, when and where it is taking place, and in which journals it is being published), to determine the research being conducted as well as to document geographical trends in publication over time in three types of technological addictions: Internet, cell phones, and video games. Articles indexed in PubMed and PsycINFO between 2006 and 2010 related to the pathological use of Internet, cell phones, and video games were retrieved. Search results were reviewed to eliminate articles that were not relevant or were duplicates. Three hundred and thirty valid articles were retrieved from PubMed and PsycINFO from 2006 to 2010. Results were compared with those of 1996-2005. The year with the highest number of articles published was 2008 (n = 96). The most productive countries, in terms of number of articles published, were China (n = 67), the United States (n = 56), the United Kingdom (n = 47), and Taiwan (n = 33). The most commonly used language was English (70.3%), followed by Chinese (15.4%). Articles were published in 153 different journals. The journal that published the most articles was Cyberpsychology and Behavior (n = 73), followed by Chinese Journal of Clinical Psychology (n = 27) and International Journal of Mental Health and Addiction (n = 16). Internet was the area most frequently studied, with an increasing interest in other areas such as online video games and cell phones. The number of publications on technological addictions reached a peak in 2008. The scientific contributions of China, Taiwan, and Korea are overrepresented compared to other scientific fields such as drug addiction. The inclusion of Internet Gaming Disorder in the Diagnostic and Statistical Manual of Mental Disorders, 5(th) Edition could change the publication trends in the

How Is Marijuana Vaping Portrayed on YouTube? Content, Features, Popularity and Retransmission of Vaping Marijuana YouTube Videos.

Science.gov (United States)

Yang, Qinghua; Sangalang, Angeline; Rooney, Molly; Maloney, Erin; Emery, Sherry; Cappella, Joseph N

2018-01-01

The purpose of the study is to investigate how vaping marijuana, a novel but emerging risky health behavior, is portrayed on YouTube, and how the content and features of these YouTube videos influence their popularity and retransmission. A content analysis of vaping marijuana YouTube videos published between July 2014 to June 2015 (n = 214) was conducted. Video genre, valence, promotional and warning arguments, emotional appeals, message sensation value, presence of misinformation and misleading information, and user-generated statistics, including number of views, comments, shares, likes and dislikes, were coded. The results showed that these videos were predominantly pro-marijuana-vaping, with the most frequent videos being user-sharing. The genre and message features influenced the popularity, evaluations, and retransmission of vaping marijuana YouTube videos. Theoretical and practical implications are discussed.

Improving patient knowledge about sacral nerve stimulation using a patient based educational video.

Science.gov (United States)

Jeppson, Peter Clegg; Clark, Melissa A; Hampton, Brittany Star; Raker, Christina A; Sung, Vivian W

2013-10-01

We developed a patient based educational video to address the information needs of women considering sacral nerve stimulation for overactive bladder. Five semistructured focus groups were used to identify patient knowledge gaps, information needs, patient acceptable terminology and video content preferences for a patient based sacral nerve stimulation educational video. Each session was transcribed, independently coded by 2 coders and examined using an iterative method. A 16-minute educational video was created to address previously identified knowledge gaps and information needs using patient footage, 3-dimensional animation and peer reviewed literature. We developed a questionnaire to evaluate participant sacral nerve stimulation knowledge and therapy attitudes. We then performed a randomized trial to assess the effect of the educational video vs the manufacturer video on patient knowledge and attitudes using our questionnaire. We identified 10 patient important domains, including 1) anatomy, 2) expectations, 3) sacral nerve stimulation device efficacy, 4) surgical procedure, 5) surgical/device complications, 6) post-procedure recovery, 7) sacral nerve stimulation side effects, 8) postoperative restrictions, 9) device maintenance and 10) general sacral nerve stimulation information. A total of 40 women with overactive bladder were randomized to watch the educational (20) or manufacturer (20) video. Knowledge scores improved in each group but the educational video group had a greater score improvement (76.6 vs 24.2 points, p <0.0001). Women who watched the educational video reported more favorable attitudes and expectations about sacral nerve stimulation therapy. Women with overactive bladder considering sacral nerve stimulation therapy have specific information needs. The video that we developed to address these needs was associated with improved short-term patient knowledge. Copyright © 2013 American Urological Association Education and Research, Inc

YouTube is the Most Frequently Used Educational Video Source for Surgical Preparation.

Science.gov (United States)

Rapp, Allison K; Healy, Michael G; Charlton, Mary E; Keith, Jerrod N; Rosenbaum, Marcy E; Kapadia, Muneera R

The purpose of this study was to evaluate surgical preparation methods of medical students, residents, and faculty with special attention to video usage. Following Institutional Review Board approval, anonymous surveys were distributed to participants. Information collected included demographics and surgical preparation methods, focusing on video usage. Participants were questioned regarding frequency and helpfulness of videos, video sources used, and preferred methods between videos, reading, and peer consultation. Statistical analysis was performed using SAS. Surveys were distributed to participants in the Department of Surgery at the University of Iowa Hospitals and Clinics, a tertiary care center in Iowa City, Iowa. Survey participants included fourth-year medical students pursuing general surgery, general surgery residents, and faculty surgeons in the Department of Surgery. A total of 86 surveys were distributed, and 78 surveys were completed. This included 42 learners (33 residents, 9 fourth-year medical students) and 36 faculty. The overall response rate was 91%; 90% of respondents reported using videos for surgical preparation (learners = 95%, faculty = 83%, p = NS). Regarding surgical preparation methods overall, most learners and faculty selected reading (90% versus 78%, p = NS), and fewer respondents reported preferring videos (64% versus 44%, p = NS). Faculty more often use peer consultation (31% versus 50%, p YouTube (86%). Learners and faculty use different video sources. Learners use YouTube and Surgical Council on Resident Education (SCORE) Portal more than faculty (YouTube: 95% versus 73%, p YouTube was the preferred source. Posting surgical videos to YouTube may allow for maximal access to learners who are preparing for surgical cases. Copyright © 2016 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

Low-latency video transmission over high-speed WPANs based on low-power video compression

DEFF Research Database (Denmark)

Belyaev, Evgeny; Turlikov, Andrey; Ukhanova, Ann

2010-01-01

This paper presents latency-constrained video transmission over high-speed wireless personal area networks (WPANs). Low-power video compression is proposed as an alternative to uncompressed video transmission. A video source rate control based on MINMAX quality criteria is introduced. Practical...

Video Self-Modeling

Science.gov (United States)

Buggey, Tom; Ogle, Lindsey

2012-01-01

Video self-modeling (VSM) first appeared on the psychology and education stage in the early 1970s. The practical applications of VSM were limited by lack of access to tools for editing video, which is necessary for almost all self-modeling videos. Thus, VSM remained in the research domain until the advent of camcorders and VCR/DVD players and,…

Video dosimetry: evaluation of X-radiation dose by video fluoroscopic image

International Nuclear Information System (INIS)

Nova, Joao Luiz Leocadio da; Lopes, Ricardo Tadeu

1996-01-01

A new methodology to evaluate the entrance surface dose on patients under radiodiagnosis is presented. A phantom is used in video fluoroscopic procedures in on line video signal system. The images are obtained from a Siemens Polymat 50 and are digitalized. The results show that the entrance surface dose can be obtained in real time from video imaging

Encefalitis por virus San Luis en la Ciudad de Buenos Aires durante el brote de dengue 2009

Directory of Open Access Journals (Sweden)

Horacio López

2011-06-01

Full Text Available Se presenta un paciente de 80 años de edad, residente en la Ciudad de Buenos Aires, con diagnóstico serológico para el virus de la encefalitis de San Luis (SLE durante el brote de dengue ocurrido entre enero y mayo de 2009. Presentaba leucemia linfoide crónica en tratamiento con clorambucilo, cáncer de próstata tratado con hormonoterapia y radioterapia, e imágenes óseas compatibles con metástasis. El estudio del líquido cefalorraquídeo demostró pleocitosis con predominio de mononucleares y proteinorraquia elevada. El resultado de los cultivos para bacterias, hongos y micobacterias, así como el PCR en LCR para herpes virus, HSV, CMV y EBV, fue negativo. Se detectaron anticuerpos IgM para virus SLE tanto en LCR como en muestra de suero, con seroconversión IgG por neutralización en cultivos celulares y resultados negativos para los demás Flavivirus con circulación en Argentina. Se revisan evidencias sobre la presencia de virus de San Luis en nuestro país, y se señala la importancia de la confirmación diagnóstica y el estudio de otros Flavivirus en casos sospechosos de dengue con presentación grave o atípica. Este trabajo remarca la necesidad de fortalecer tanto la vigilancia epidemiológica del virus SLE, como el control vectorial para prevenir las diferentes infecciones transmitidas por mosquitos y conocer su efecto en Salud Pública en la Argentina.

Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia.

Science.gov (United States)

Saquib, Nazmus; Saquib, Juliann; Wahid, AbdulWaris; Ahmed, Abdulrahman Akmal; Dhuhayr, Hamad Emad; Zaghloul, Mohamed Saddik; Ewid, Mohammed; Al-Mazrou, Abdulrahman

2017-12-01

Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in the International Schools in Buraidah, Al-Qassim. Students who returned signed consent forms from their parents filled out a self-administered questionnaire that included validated scales on addiction to video games, general health, and lifestyle. The proportion between the sexes and the schools were roughly equal. Around 32% were overweight or obese, 75% had screen time ≥ 2 h/day, and 20% slept addicted to video games and 54% had psychological distress. Addiction to video games was strongly associated with psychological distress (OR = 4.1, 95% CI = 1.80, 9.47). Other significant correlates were female gender, higher screen time, and shorter sleep hours. The proportion of students with psychological distress was high. Future studies should investigate other potential correlates of distress such personal traits, family relations, and academic performance.

Akademisk video

DEFF Research Database (Denmark)

Frølunde, Lisbeth

2017-01-01

Dette kapitel har fokus på metodiske problemstillinger, der opstår i forhold til at bruge (digital) video i forbindelse med forskningskommunikation, ikke mindst online. Video har længe været benyttet i forskningen til dataindsamling og forskningskommunikation. Med digitaliseringen og internettet ...

VBR video traffic models

CERN Document Server

Tanwir, Savera

2014-01-01

There has been a phenomenal growth in video applications over the past few years. An accurate traffic model of Variable Bit Rate (VBR) video is necessary for performance evaluation of a network design and for generating synthetic traffic that can be used for benchmarking a network. A large number of models for VBR video traffic have been proposed in the literature for different types of video in the past 20 years. Here, the authors have classified and surveyed these models and have also evaluated the models for H.264 AVC and MVC encoded video and discussed their findings.

Video Games as a Multifaceted Medium: A Review of Quantitative Social Science Research on Video Games and a Typology of Video Game Research Approaches

Directory of Open Access Journals (Sweden)

James D. Ivory

2013-01-01

Full Text Available Although there is a vast and useful body of quantitative social science research dealing with the social role and impact of video games, it is difficult to compare studies dealing with various dimensions of video games because they are informed by different perspectives and assumptions, employ different methodologies, and address different problems. Studies focusing on different social dimensions of video games can produce varied findings about games’ social function that are often difficult to reconcile— or even contradictory. Research is also often categorized by topic area, rendering a comprehensive view of video games’ social role across topic areas difficult. This interpretive review presents a novel typology of four identified approaches that categorize much of the quantitative social science video game research conducted to date: “video games as stimulus,” “video games as avocation,” “video games as skill,” and “video games as social environment.” This typology is useful because it provides an organizational structure within which the large and growing number of studies on video games can be categorized, guiding comparisons between studies on different research topics and aiding a more comprehensive understanding of video games’ social role. Categorizing the different approaches to video game research provides a useful heuristic for those critiquing and expanding that research, as well as an understandable entry point for scholars new to video game research. Further, and perhaps more importantly, the typology indicates when topics should be explored using different approaches than usual to shed new light on the topic areas. Lastly, the typology exposes the conceptual disconnects between the different approaches to video game research, allowing researchers to consider new ways to bridge gaps between the different approaches’ strengths and limitations with novel methods.

Tecnología lítica y uso diferencial del espacio en Estancia La Suiza, San Luis, Argentina

OpenAIRE

Sario, Gisela Mariela

2017-01-01

El trabajo pretende contribuir, desde la perspectiva de la organización de la tecnología, al conocimiento de las ocupaciones cazadoras-recolectoras que habitaron las inmediaciones de la Sierra de la Estanzuela, en la provincia de San Luis, Argentina. Se explican cómo fueron las secuencias de producción de herramientas en los sitios de la localidad arqueológica Estancia La Suiza, a partir del análisis de los materiales líticos recuperados en excavación y prospecciones sistemáticas. Las metod...

A flexible software architecture for scalable real-time image and video processing applications

Science.gov (United States)

Usamentiaga, Rubén; Molleda, Julio; García, Daniel F.; Bulnes, Francisco G.

2012-06-01

Real-time image and video processing applications require skilled architects, and recent trends in the hardware platform make the design and implementation of these applications increasingly complex. Many frameworks and libraries have been proposed or commercialized to simplify the design and tuning of real-time image processing applications. However, they tend to lack flexibility because they are normally oriented towards particular types of applications, or they impose specific data processing models such as the pipeline. Other issues include large memory footprints, difficulty for reuse and inefficient execution on multicore processors. This paper presents a novel software architecture for real-time image and video processing applications which addresses these issues. The architecture is divided into three layers: the platform abstraction layer, the messaging layer, and the application layer. The platform abstraction layer provides a high level application programming interface for the rest of the architecture. The messaging layer provides a message passing interface based on a dynamic publish/subscribe pattern. A topic-based filtering in which messages are published to topics is used to route the messages from the publishers to the subscribers interested in a particular type of messages. The application layer provides a repository for reusable application modules designed for real-time image and video processing applications. These modules, which include acquisition, visualization, communication, user interface and data processing modules, take advantage of the power of other well-known libraries such as OpenCV, Intel IPP, or CUDA. Finally, we present different prototypes and applications to show the possibilities of the proposed architecture.

Video game addiction and psychological distress among expatriate adolescents in Saudi Arabia

Directory of Open Access Journals (Sweden)

Nazmus Saquib

2017-12-01

Full Text Available Introduction: Few studies have estimated screen time among Arab adolescents, and no studies, to date, have published data on addiction to video games or Internet games among Arab adolescents. This study aimed to assess the prevalence of addiction to video games and its correlation with mental health in a sample of expatriate high school students from the Al-Qassim region of Saudi Arabia. Methods: The survey was conducted in 2016 among 276 students enrolled in ninth through twelfth grades in the International Schools in Buraidah, Al-Qassim. Students who returned signed consent forms from their parents filled out a self-administered questionnaire that included validated scales on addiction to video games, general health, and lifestyle. Results: The proportion between the sexes and the schools were roughly equal. Around 32% were overweight or obese, 75% had screen time≥2h/day, and 20% slept<5h/night. Sixteen per cent (16% were addicted to video games and 54% had psychological distress. Addiction to video games was strongly associated with psychological distress (OR=4.1, 95% CI=1.80, 9.47. Other significant correlates were female gender, higher screen time, and shorter sleep hours. Conclusions: The proportion of students with psychological distress was high. Future studies should investigate other potential correlates of distress such personal traits, family relations, and academic performance. Keywords: Video games, Addiction, Adolescent, Psychological distress, Screen time, Saudi Arabia

Digital Video in Research

DEFF Research Database (Denmark)

Frølunde, Lisbeth

2012-01-01

Is video becoming “the new black” in academia, if so, what are the challenges? The integration of video in research methodology (for collection, analysis) is well-known, but the use of “academic video” for dissemination is relatively new (Eriksson and Sørensen). The focus of this paper is academic......). In the video, I appear (along with other researchers) and two Danish film directors, and excerpts from their film. My challenges included how to edit the academic video and organize the collaborative effort. I consider video editing as a semiotic, transformative process of “reassembling” voices....... In the discussion, I review academic video in terms of relevance and implications for research practice. The theoretical background is social constructivist, combining social semiotics (Kress, van Leeuwen, McCloud), visual anthropology (Banks, Pink) and dialogic theory (Bakhtin). The Bakhtinian notion of “voices...

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... search for current job openings visit HHS USAJobs Home >> NEI YouTube Videos >> NEI YouTube Videos: Amblyopia Listen NEI YouTube Videos YouTube Videos Home Age-Related Macular Degeneration Amblyopia Animations Blindness Cataract ...

Talking Video in 'Everyday Life'

DEFF Research Database (Denmark)

McIlvenny, Paul

For better or worse, video technologies have made their way into many domains of social life, for example in the domain of therapeutics. Techniques such as Marte Meo, Video Interaction Guidance (ViG), Video-Enhanced Reflection on Communication, Video Home Training and Video intervention....../prevention (VIP) all promote the use of video as a therapeutic tool. This paper focuses on media therapeutics and the various in situ uses of video technologies in the mass media for therapeutic purposes. Reality TV parenting programmes such as Supernanny, Little Angels, The House of Tiny Tearaways, Honey, We...... observation and instruction (directives) relayed across different spaces; 2) the use of recorded video by participants to visualise, spatialise and localise talk and action that is distant in time and/or space; 3) the translating, stretching and cutting of social experience in and through the situated use...

Using video analysis for concussion surveillance in Australian football.

Science.gov (United States)

Makdissi, Michael; Davis, Gavin

2016-12-01

The objectives of the study were to assess the relationship between various player and game factors and risk of concussion; and to assess the reliability of video analysis for mechanistic assessment of concussion in Australian football. Prospective cohort study. All impacts and collisions resulting in concussion were identified during the 2011 Australian Football League season. An extensive list of factors for assessment was created based upon previous analysis of concussion in Australian Football League and expert opinions. The authors independently reviewed the video clips and correlation for each factor was examined. A total of 82 concussions were reported in 194 games (rate: 8.7 concussions per 1000 match hours; 95% confidence interval: 6.9-10.5). Player demographics and game variables such as venue, timing of the game (day, night or twilight), quarter, travel status (home or interstate) or score margin did not demonstrate a significant relationship with risk of concussion; although a higher percentage of concussions occurred in the first 5min of game time of the quarter (36.6%), when compared to the last 5min (20.7%). Variables with good inter-rater agreement included position on the ground, circumstances of the injury and cause of the impact. The remainder of the variables assessed had fair-poor inter-rater agreement. Common problems included insufficient or poor quality video and interpretation issues related to the definitions used. Clear definitions and good quality video from multiple camera angles are required to improve the utility of video analysis for concussion surveillance in Australian football. Copyright © 2016 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

Video Classification and Adaptive QoP/QoS Control for Multiresolution Video Applications on IPTV

Directory of Open Access Journals (Sweden)

Huang Shyh-Fang

2012-01-01

Full Text Available With the development of heterogeneous networks and video coding standards, multiresolution video applications over networks become important. It is critical to ensure the service quality of the network for time-sensitive video services. Worldwide Interoperability for Microwave Access (WIMAX is a good candidate for delivering video signals because through WIMAX the delivery quality based on the quality-of-service (QoS setting can be guaranteed. The selection of suitable QoS parameters is, however, not trivial for service users. Instead, what a video service user really concerns with is the video quality of presentation (QoP which includes the video resolution, the fidelity, and the frame rate. In this paper, we present a quality control mechanism in multiresolution video coding structures over WIMAX networks and also investigate the relationship between QoP and QoS in end-to-end connections. Consequently, the video presentation quality can be simply mapped to the network requirements by a mapping table, and then the end-to-end QoS is achieved. We performed experiments with multiresolution MPEG coding over WIMAX networks. In addition to the QoP parameters, the video characteristics, such as, the picture activity and the video mobility, also affect the QoS significantly.

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... search for current job openings visit HHS USAJobs Home » NEI YouTube Videos » NEI YouTube Videos: Amblyopia Listen NEI YouTube Videos YouTube Videos Home Age-Related Macular Degeneration Amblyopia Animations Blindness Cataract ...

Airborne Video Surveillance

National Research Council Canada - National Science Library

Blask, Steven

2002-01-01

The DARPA Airborne Video Surveillance (AVS) program was established to develop and promote technologies to make airborne video more useful, providing capabilities that achieve a UAV force multiplier...

Primeros registros del ibis blanco (Eudocimus albus en el Altiplano de San Luis Potosí, México

Directory of Open Access Journals (Sweden)

Natalia de Gortari-Ludlow

2012-07-01

Full Text Available Reportamos dos observaciones visuales del ibis blanco (Eudocimus albus de la Laguna de Los Coyotes, un afluente natural del manantial la Media Luna que se localiza en el municipio de Rioverde, San Luis Potosí, México. Los avistamientos ocurrieron en septiembre de 2011 y febrero de 2012. Este es el primer reporte de la presencia de esta ave en dicha localidad, y es importante porque la especie ha sido escasamente encontrada en ambientes no ribereños del Altiplano Mexicano.

YouTube Videos as a Source of Information About Clinical Trials: Observational Study.

Science.gov (United States)

Hillyer, Grace Clarke; MacLean, Sarah A; Beauchemin, Melissa; Basch, Corey H; Schmitt, Karen M; Segall, Leslie; Kelsen, Moshe; Brogan, Frances L; Schwartz, Gary K

2018-06-26

provided information on many aspects of trials; however, individual videos tended to focus on selected topics with varying levels of detail. Cancer clinical trial videos were more emotional in style and positive in tone and provided information on the important topics of cost and communication. Patients are encouraged to verify and supplement YouTube video information in consultations with their health care professionals to obtain a full and accurate picture of cancer clinical trials to make an adequately informed decision about participation. ©Grace Clarke Hillyer, Sarah A MacLean, Melissa Beauchemin, Corey H Basch, Karen M Schmitt, Leslie Segall, Moshe Kelsen, Frances L Brogan, Gary K Schwartz. Originally published in JMIR Cancer (http://cancer.jmir.org), 26.06.2018.

Using commercial video games for upper limb stroke rehabilitation: is this the way of the future?

Science.gov (United States)

Pietrzak, Eva; Cotea, Cristina; Pullman, Stephen

2014-01-01

The increasing number of people living with poststroke sequelae has stimulated the search for novel ways of providing poststroke rehabilitation without putting additional stress on overburdened health care systems. One of them is the use of commercially available technology and off-the-shelf video games for hemiparetic upper limb rehabilitation. The MEDLINE, EMBASE, and Cochrane Library databases were searched using key word synonyms for stroke, upper limb, and video games. Included studies investigated upper limb stroke rehabilitation using commercially available consoles and video games, reported outcomes that included measures of upper limb functionality, and were published in a peer-reviewed journal written in English. Thirteen studies were identified - 6 published as full articles and 7 as abstracts. Studies were generally small and only 3 were randomized. The gaming systems investigated were the Nintendo Wii (n = 10), EyeToy PlayStation (n = 2), and CyWee Z (n = 1). The Nintendo Wii appears to provide the greatest benefits to patients, with improvements seen in upper extremity function measures such as joint range of motion, hand motor function, grip strength, and dexterity. Three studies indicate that video therapy appears to be safe and that long-term improvements continue at follow-up. At present, the evidence that the use of commercial video games in rehabilitation improves upper limb functionality after stroke is very limited. However, this approach has the potential to provide easily available and affordable stroke rehabilitation therapy in settings where access to therapy is limited by geographical or financial constraints.

Informal Physics Learning from Video Games: A Case Study Using Gameplay Videos

Science.gov (United States)

Croxton, DeVaughn; Kortemeyer, Gerd

2018-01-01

Researching informal gameplay can be challenging, since as soon as a formal study design is imposed, it becomes neither casual nor self-motivated. As a case study of a non-invasive design, we analyze publicly posted gameplay videos to assess the effectiveness of a physics educational video game on special relativity. These videos offer unique…

A new video programme

CERN Multimedia

CERN video productions

2011-01-01

"What's new @ CERN?", a new monthly video programme, will be broadcast on the Monday of every month on webcast.cern.ch. Aimed at the general public, the programme will cover the latest CERN news, with guests and explanatory features. Tune in on Monday 3 October at 4 pm (CET) to see the programme in English, and then at 4:20 pm (CET) for the French version.   var flash_video_player=get_video_player_path(); insert_player_for_external('Video/Public/Movies/2011/CERN-MOVIE-2011-129/CERN-MOVIE-2011-129-0753-kbps-640x360-25-fps-audio-64-kbps-44-kHz-stereo', 'mms://mediastream.cern.ch/MediaArchive/Video/Public/Movies/2011/CERN-MOVIE-2011-129/CERN-MOVIE-2011-129-Multirate-200-to-753-kbps-640x360-25-fps.wmv', 'false', 480, 360, 'https://mediastream.cern.ch/MediaArchive/Video/Public/Movies/2011/CERN-MOVIE-2011-129/CERN-MOVIE-2011-129-posterframe-640x360-at-10-percent.jpg', '1383406', true, 'Video/Public/Movies/2011/CERN-MOVIE-2011-129/CERN-MOVIE-2011-129-0600-kbps-maxH-360-25-fps-...

Self-Recognition in Live Videos by Young Children: Does Video Training Help?

Science.gov (United States)

Demir, Defne; Skouteris, Helen

2010-01-01

The overall aim of the experiment reported here was to establish whether self-recognition in live video can be facilitated when live video training is provided to children aged 2-2.5 years. While the majority of children failed the test of live self-recognition prior to video training, more than half exhibited live self-recognition post video…

Video Toroid Cavity Imager

Energy Technology Data Exchange (ETDEWEB)

Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

2004-08-10

A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

Video training and certification program improves reliability of postischemic neurologic deficit measurement in the rat.

Science.gov (United States)

Taninishi, Hideki; Pearlstein, Molly; Sheng, Huaxin; Izutsu, Miwa; Chaparro, Rafael E; Goldstein, Larry B; Warner, David S

2016-12-01

Scoring systems are used to measure behavioral deficits in stroke research. Video-assisted training is used to standardize stroke-related neurologic deficit scoring in humans. We hypothesized that a video-assisted training and certification program can improve inter-rater reliability in assessing neurologic function after middle cerebral artery occlusion in rats. Three expert raters scored neurologic deficits in post-middle cerebral artery occlusion rats using three published systems having different complexity levels (3, 18, or 48 points). The system having the highest point estimate for the correlation between neurologic score and infarct size was selected to create a video-assisted training and certification program. Eight trainee raters completed the video-assisted training and certification program. Inter-rater agreement ( Κ: score) and agreement with expert consensus scores were measured before and after video-assisted training and certification program completion. The 48-point system correlated best with infarct size. Video-assisted training and certification improved agreement with expert consensus scores (pretraining = 65 ± 10, posttraining = 87 ± 14, 112 possible scores, P  0.4 (pretraining = 4, posttraining = 9), and number of categories with an improvement in the Κ: score from pretraining to posttraining (n = 6). Video-assisted training and certification improved trainee inter-rater reliability and agreement with expert consensus behavioral scores in rats after middle cerebral artery occlusion. Video-assisted training and certification may be useful in multilaboratory preclinical studies. © The Author(s) 2015.

A Framework for Video Modeling

NARCIS (Netherlands)

Petkovic, M.; Jonker, Willem

In recent years, research in video databases has increased greatly, but relatively little work has been done in the area of semantic content-based retrieval. In this paper, we present a framework for video modelling with emphasis on semantic content of video data. The video data model presented

Video library for video imaging detection at intersection stop lines.

Science.gov (United States)

2010-04-01

The objective of this activity was to record video that could be used for controlled : evaluation of video image vehicle detection system (VIVDS) products and software upgrades to : existing products based on a list of conditions that might be diffic...

Deep video deblurring

KAUST Repository

Su, Shuochen

2016-11-25

Motion blur from camera shake is a major problem in videos captured by hand-held devices. Unlike single-image deblurring, video-based approaches can take advantage of the abundant information that exists across neighboring frames. As a result the best performing methods rely on aligning nearby frames. However, aligning images is a computationally expensive and fragile procedure, and methods that aggregate information must therefore be able to identify which regions have been accurately aligned and which have not, a task which requires high level scene understanding. In this work, we introduce a deep learning solution to video deblurring, where a CNN is trained end-to-end to learn how to accumulate information across frames. To train this network, we collected a dataset of real videos recorded with a high framerate camera, which we use to generate synthetic motion blur for supervision. We show that the features learned from this dataset extend to deblurring motion blur that arises due to camera shake in a wide range of videos, and compare the quality of results to a number of other baselines.

Meta-analysis of action video game impact on perceptual, attentional, and cognitive skills.

Science.gov (United States)

Bediou, Benoit; Adams, Deanne M; Mayer, Richard E; Tipton, Elizabeth; Green, C Shawn; Bavelier, Daphne

2018-01-01

The ubiquity of video games in today's society has led to significant interest in their impact on the brain and behavior and in the possibility of harnessing games for good. The present meta-analyses focus on one specific game genre that has been of particular interest to the scientific community-action video games, and cover the period 2000-2015. To assess the long-lasting impact of action video game play on various domains of cognition, we first consider cross-sectional studies that inform us about the cognitive profile of habitual action video game players, and document a positive average effect of about half a standard deviation (g = 0.55). We then turn to long-term intervention studies that inform us about the possibility of causally inducing changes in cognition via playing action video games, and show a smaller average effect of a third of a standard deviation (g = 0.34). Because only intervention studies using other commercially available video game genres as controls were included, this latter result highlights the fact that not all games equally impact cognition. Moderator analyses indicated that action video game play robustly enhances the domains of top-down attention and spatial cognition, with encouraging signs for perception. Publication bias remains, however, a threat with average effects in the published literature estimated to be 30% larger than in the full literature. As a result, we encourage the field to conduct larger cohort studies and more intervention studies, especially those with more than 30 hours of training. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

[Characteristics of the Videos in Spanish Posted on Youtube about Human Papillomavirus Vaccines].

Science.gov (United States)

Tuells, José; Martínez-Martínez, Pedro Javier; Duro-Torrijos, José Luis; Caballero, Pablo; Fraga-Freijeiro, Paula; Navarro-López, Vicente

2015-01-01

Internet is a resource to search for health-related information. The aim of this work was to know the content of the videos in Spanish language of YouTube related to the vaccine against the human papilloma virus (HPV). An observational study was conducted from a search on YouTube on 26th July 2013 by using keywords such as: "human papilloma virus vaccine", "HPV vaccine", "Gardasil vaccine", "Cervarix vaccine". Different categories were established according to: the type of vaccine, the published source and the favorable or unfavorable predisposition towards the human papillomavirus vaccination. The number of visits and the duration of the videos were gathered, with analysis of variables in the 20 most visited videos. A total of 170 videos were classified like: local news (n=39; 37 favorable, 2 unfavorable; 2:06:29; 42972 visits), national news (n=32; 30/2; 1:49:27; 50138 visits), created by YouTube subscribers (n=21; 21/1; 1:44:39; 10991 visits), advertisements (n=21; 19/2; 0:27:05; 28435 visits), conferences (n=17; 15/2; 3:25:39; 27206 visits), documentaries (n=16; 12/4; 2:11:31; 30629 visits). From all of the 20 most viewed YouTube videos predominated those which were favorable to the vaccination (n=12; 0:43:43; 161789 visits) against the unfavorable (n=8; 2:44:14; 86583 visits). Most of the videos have a favorable opinion towards HPV vaccine, although videos with a negative content were the longest and most viewed.

Videos for Science Communication and Nature Interpretation: The TIB|AV-Portal as Resource.

Science.gov (United States)

Marín Arraiza, Paloma; Plank, Margret; Löwe, Peter

2016-04-01

Scientific audiovisual media such as videos of research, interactive displays or computer animations has become an important part of scientific communication and education. Dynamic phenomena can be described better by audiovisual media than by words and pictures. For this reason, scientific videos help us to understand and discuss environmental phenomena more efficiently. Moreover, the creation of scientific videos is easier than ever, thanks to mobile devices and open source editing software. Video-clips, webinars or even the interactive part of a PICO are formats of scientific audiovisual media used in the Geosciences. This type of media translates the location-referenced Science Communication such as environmental interpretation into computed-based Science Communication. A new way of Science Communication is video abstracting. A video abstract is a three- to five-minute video statement that provides background information about a research paper. It also gives authors the opportunity to present their research activities to a wider audience. Since this kind of media have become an important part of scientific communication there is a need for reliable infrastructures which are capable of managing the digital assets researchers generate. Using the reference of the usecase of video abstracts this paper gives an overview over the activities by the German National Library of Science and Technology (TIB) regarding publishing and linking audiovisual media in a scientifically sound way. The German National Library of Science and Technology (TIB) in cooperation with the Hasso Plattner Institute (HPI) developed a web-based portal (av.tib.eu) that optimises access to scientific videos in the fields of science and technology. Videos from the realms of science and technology can easily be uploaded onto the TIB|AV Portal. Within a short period of time the videos are assigned a digital object identifier (DOI). This enables them to be referenced, cited, and linked (e.g. to the

The Children's Video Marketplace.

Science.gov (United States)

Ducey, Richard V.

This report examines a growing submarket, the children's video marketplace, which comprises broadcast, cable, and video programming for children 2 to 11 years old. A description of the tremendous growth in the availability and distribution of children's programming is presented, the economics of the children's video marketplace are briefly…

Toward enhancing the distributed video coder under a multiview video codec framework

Science.gov (United States)

Lee, Shih-Chieh; Chen, Jiann-Jone; Tsai, Yao-Hong; Chen, Chin-Hua

2016-11-01

The advance of video coding technology enables multiview video (MVV) or three-dimensional television (3-D TV) display for users with or without glasses. For mobile devices or wireless applications, a distributed video coder (DVC) can be utilized to shift the encoder complexity to decoder under the MVV coding framework, denoted as multiview distributed video coding (MDVC). We proposed to exploit both inter- and intraview video correlations to enhance side information (SI) and improve the MDVC performance: (1) based on the multiview motion estimation (MVME) framework, a categorized block matching prediction with fidelity weights (COMPETE) was proposed to yield a high quality SI frame for better DVC reconstructed images. (2) The block transform coefficient properties, i.e., DCs and ACs, were exploited to design the priority rate control for the turbo code, such that the DVC decoding can be carried out with fewest parity bits. In comparison, the proposed COMPETE method demonstrated lower time complexity, while presenting better reconstructed video quality. Simulations show that the proposed COMPETE can reduce the time complexity of MVME to 1.29 to 2.56 times smaller, as compared to previous hybrid MVME methods, while the image peak signal to noise ratios (PSNRs) of a decoded video can be improved 0.2 to 3.5 dB, as compared to H.264/AVC intracoding.

[Future status of ischaemic heart disease in the state of San Luis Potosí: A predictive dynamic model].

Science.gov (United States)

Gaytán-Hernández, Darío; Díaz-Oviedo, Aracely; Gallegos-García, Verónica; Terán-Figueroa, Yolanda

To develop a predictive dynamic model to generate and analyse the future status of the incidence rate of ischaemic heart disease in a population of 25 years and over in Mexico, according to the variation in time of some risk factors. Retrospective ecological study performed during the period 2013-2015, in San Luis Potosí City, Mexico. Secondary databases that corresponded to the years 2000, 2005, and 2010, were used along with official indicators of the 58 municipalities of the state of San Luis Potosí. Eight indicators were analysed at municipality level, using principal components analysis, structural equation modelling, dynamic modelling, and simulation software methods. Three components were extracted, which together explained 80.43% of the total variance of the official indicators used. The second component had a weight of 16.36 units that favoured an increase of the disease analysed. This component was integrated only by the indicator AGE 60-64 and the expected stage of it increasing. The structural model confirmed that the indicators explain 42% of the variation of this disease. The possible stages for the years 2015, 2020, and 2025 are 195.7, 240.7, and 298.0, respectively for every 100,000 inhabitants aged 25 and over. An exponential increase in the incidence rate of ischaemic heart disease is expected, with the age of 60-64 years being identified as the highest risk factor. Copyright © 2017 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. All rights reserved.

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... Amaurosis Low Vision Refractive Errors Retinopathy of Prematurity Science Spanish Videos Webinars NEI YouTube Videos: Amblyopia Embedded video for NEI YouTube Videos: Amblyopia NEI Home Contact Us A-Z Site Map NEI on Social Media Information in Spanish (Información en español) Website, ...

Camera network video summarization

Science.gov (United States)

Panda, Rameswar; Roy-Chowdhury, Amit K.

2017-05-01

Networks of vision sensors are deployed in many settings, ranging from security needs to disaster response to environmental monitoring. Many of these setups have hundreds of cameras and tens of thousands of hours of video. The difficulty of analyzing such a massive volume of video data is apparent whenever there is an incident that requires foraging through vast video archives to identify events of interest. As a result, video summarization, that automatically extract a brief yet informative summary of these videos, has attracted intense attention in the recent years. Much progress has been made in developing a variety of ways to summarize a single video in form of a key sequence or video skim. However, generating a summary from a set of videos captured in a multi-camera network still remains as a novel and largely under-addressed problem. In this paper, with the aim of summarizing videos in a camera network, we introduce a novel representative selection approach via joint embedding and capped l21-norm minimization. The objective function is two-fold. The first is to capture the structural relationships of data points in a camera network via an embedding, which helps in characterizing the outliers and also in extracting a diverse set of representatives. The second is to use a capped l21-norm to model the sparsity and to suppress the influence of data outliers in representative selection. We propose to jointly optimize both of the objectives, such that embedding can not only characterize the structure, but also indicate the requirements of sparse representative selection. Extensive experiments on standard multi-camera datasets well demonstrate the efficacy of our method over state-of-the-art methods.

Activity and energy expenditure in older people playing active video games.

Science.gov (United States)

Taylor, Lynne M; Maddison, Ralph; Pfaeffli, Leila A; Rawstorn, Jonathan C; Gant, Nicholas; Kerse, Ngaire M

2012-12-01

Tayl To quantify energy expenditure in older adults playing interactive video games while standing and seated, and secondarily to determine whether participants' balance status influenced the energy cost associated with active video game play. Cross-sectional study. University research center. Community-dwelling adults (N=19) aged 70.7±6.4 years. Participants played 9 active video games, each for 5 minutes, in random order. Two games (boxing and bowling) were played in both seated and standing positions. Energy expenditure was assessed using indirect calorimetry while at rest and during game play. Energy expenditure was expressed in kilojoules per minute and metabolic equivalents (METs). Balance was assessed using the mini-BESTest, the Activities-specific Balance Confidence Scale, and the Timed Up and Go (TUG). Mean ± SD energy expenditure was significantly greater for all game conditions compared with rest (all P≤.01) and ranged from 1.46±.41 METs to 2.97±1.16 METs. There was no significant difference in energy expenditure, activity counts, or perceived exertion between equivalent games played while standing and seated. No significant correlations were observed between energy expenditure or activity counts and balance status. Active video games provide light-intensity exercise in community-dwelling older people, whether played while seated or standing. People who are unable to stand may derive equivalent benefits from active video games played while seated. Further research is required to determine whether sustained use of active video games alters physical activity levels in community settings for this population. Copyright © 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

The energy expenditure of an activity-promoting video game compared to sedentary video games and TV watching.

Science.gov (United States)

Mitre, Naim; Foster, Randal C; Lanningham-Foster, Lorraine; Levine, James A

2011-01-01

In the present study we investigated the effect of television watching and the use of activity-promoting video games on energy expenditure in obese and lean children. Energy expenditure and physical activity were measured while participants were watching television, playing a video game on a traditional sedentary video game console, and while playing the same video game on an activity-promoting video game console. Energy expenditure was significantly greater than television watching and playing video games on a sedentary video game console when children played the video game on the activity-promoting console. When examining movement with accelerometry, children moved significantly more when playing the video game on the Nintendo Wii console. Activity-promoting video games have shown to increase movement, and be an important tool to raise energy expenditure by 50% when compared to sedentary activities of daily living.

Fast compressed domain motion detection in H.264 video streams for video surveillance applications

DEFF Research Database (Denmark)

Szczerba, Krzysztof; Forchhammer, Søren; Støttrup-Andersen, Jesper

2009-01-01

This paper presents a novel approach to fast motion detection in H.264/MPEG-4 advanced video coding (AVC) compressed video streams for IP video surveillance systems. The goal is to develop algorithms which may be useful in a real-life industrial perspective by facilitating the processing of large...... on motion vectors embedded in the video stream without requiring a full decoding and reconstruction of video frames. To improve the robustness to noise, a confidence measure based on temporal and spatial clues is introduced to increase the probability of correct detection. The algorithm was tested on indoor...

Remote Video Auditing in the Surgical Setting.

Science.gov (United States)

Pedersen, Anne; Getty Ritter, Elizabeth; Beaton, Megan; Gibbons, David

2017-02-01

Remote video auditing, a method first adopted by the food preparation industry, was later introduced to the health care industry as a novel approach to improving hand hygiene practices. This strategy yielded tremendous and sustained improvement, causing leaders to consider the potential effects of such technology on the complex surgical environment. This article outlines the implementation of remote video auditing and the first year of activity, outcomes, and measurable successes in a busy surgery department in the eastern United States. A team of anesthesia care providers, surgeons, and OR personnel used low-resolution cameras, large-screen displays, and cell phone alerts to make significant progress in three domains: application of the Universal Protocol for preventing wrong site, wrong procedure, wrong person surgery; efficiency metrics; and cleaning compliance. The use of cameras with real-time auditing and results-sharing created an environment of continuous learning, compliance, and synergy, which has resulted in a safer, cleaner, and more efficient OR. Copyright © 2017 AORN, Inc. Published by Elsevier Inc. All rights reserved.

Mineralogy of auriferous deposits of the quaternary deposits in the San Luis Province, Argentina

International Nuclear Information System (INIS)

Karlsson, A.; Ayala, R. . E mail: Karlsson@arnet.com.ar

2004-01-01

The objective of this work is to study the mineralogy of the sands and clays of the quaternary deposits in the San Luis Mountain, Argentina. A series of algorithms applied to the sand fraction has permitted to determine sedimentary discontinuities. The two micron fraction of the sediments has been studied by a quantification technique based on X-ray diffraction by means of oriented preparations and run with copper tube. These quaternary silts have received fluvial lateral contributions. The high cristalinidad of non expandibles and fireclay clay show the antique of the silts. The polygenic processes have generated a great variety of clay mineral species like a large quantities of illite and in lesser extend kaolinite and smectites. The illite was probably generated by diagenetic changes. The high cristalinidad of non expandibles and fireclay clay show the antique of the silts [es

El basamento de la sierra de San Luis: Nuevas evidencias magnéticas y sus implicancias tectónicas

OpenAIRE

CJ Chernicoff; VA Ramos

2003-01-01

Los mapas aeromagnéticos disponibles de las sierras de San Luis y Comechingones en el sector sudoriental de las Sierras Pampeanas de Argentina, permiten examinar las características geológicas y estructurales de las unidades metamórficas e intrusivas del basamento de la región. A través de la aplicación del filtro de continuación ascendente a los datos del campo magnético total reducido al polo, se ha podido observar la configuración profunda de las distintas unidades. Entre ellas se destaca ...

Sound for digital video

CERN Document Server

Holman, Tomlinson

2013-01-01

Achieve professional quality sound on a limited budget! Harness all new, Hollywood style audio techniques to bring your independent film and video productions to the next level.In Sound for Digital Video, Second Edition industry experts Tomlinson Holman and Arthur Baum give you the tools and knowledge to apply recent advances in audio capture, video recording, editing workflow, and mixing to your own film or video with stunning results. This fresh edition is chockfull of techniques, tricks, and workflow secrets that you can apply to your own projects from preproduction

Mobile Video in Everyday Social Interactions

Science.gov (United States)

Reponen, Erika; Lehikoinen, Jaakko; Impiö, Jussi

Video recording has become a spontaneous everyday activity for many people, thanks to the video capabilities of modern mobile phones. Internet connectivity of mobile phones enables fluent sharing of captured material even real-time, which makes video an up-and-coming everyday interaction medium. In this article we discuss the effect of the video camera in the social environment, everyday life situations, mainly based on a study where four groups of people used digital video cameras in their normal settings. We also reflect on another study of ours, relating to real-time mobile video communication and discuss future views. The aim of our research is to understand the possibilities in the domain of mobile video. Live and delayed sharing seem to have their special characteristics, live video being used as a virtual window between places whereas delayed video usage has more scope for good-quality content. While this novel way of interacting via mobile video enables new social patterns, it also raises new concerns for privacy and trust between participating persons in all roles, largely due to the widely spreading possibilities of videos. Video in a social situation affects cameramen (who record), targets (who are recorded), passers-by (who are unintentionally in the situation), and the audience (who follow the videos or recording situations) but also the other way around, the participants affect the video by their varying and evolving personal and communicational motivations for recording.

La comunicación no verbal en la proyección mediática de la imagen política de José Luis Rodríguez Zapatero durante el curso político 2006-2007

OpenAIRE

Hernández Herrarte, María

2011-01-01

Esta tesis doctoral pretende realizar una descripción de los comportamientos no verbales más representativos del actual presidente del Gobierno, José Luis Rodríguez Zapatero, con el objeto de indagar en la construcción y transmisión de su liderazgo político. Asimismo, una vez trazado el perfil no verbal de José Luis Rodríguez Zapatero (centrado en el análisis del comportamiento kinésico y el aspecto físico y la apariencia), se intentará constatar si esa comunicación no verbal que despliega es...

Gamifying Video Object Segmentation.

Science.gov (United States)

Spampinato, Concetto; Palazzo, Simone; Giordano, Daniela

2017-10-01

Video object segmentation can be considered as one of the most challenging computer vision problems. Indeed, so far, no existing solution is able to effectively deal with the peculiarities of real-world videos, especially in cases of articulated motion and object occlusions; limitations that appear more evident when we compare the performance of automated methods with the human one. However, manually segmenting objects in videos is largely impractical as it requires a lot of time and concentration. To address this problem, in this paper we propose an interactive video object segmentation method, which exploits, on one hand, the capability of humans to identify correctly objects in visual scenes, and on the other hand, the collective human brainpower to solve challenging and large-scale tasks. In particular, our method relies on a game with a purpose to collect human inputs on object locations, followed by an accurate segmentation phase achieved by optimizing an energy function encoding spatial and temporal constraints between object regions as well as human-provided location priors. Performance analysis carried out on complex video benchmarks, and exploiting data provided by over 60 users, demonstrated that our method shows a better trade-off between annotation times and segmentation accuracy than interactive video annotation and automated video object segmentation approaches.

[Computer-assisted therapy and video games in psychosocial rehabilitation for schizophrenia patients].

Science.gov (United States)

Brun, G; Verdoux, H; Couhet, G; Quiles, C

2018-02-28

Video games and virtual reality have recently become used by clinicians for training or information media or as therapeutic tools. The purpose is to review the use of these technologies for therapy destined for schizophrenia patients. We conducted a review in October 2016 using Pubmed, Scopus and PsychInfo using the following Medical Subject Headings (MESH): "video games", "virtual reality" and "therapy, computer-assisted/methods", each associated with "schizophrenia". Papers were included in the review if: (a) they were published in an English, Spanish or French-language peer-reviewed journal, (b) the study enrolled patients with schizophrenia or schizo-affective disorder, (c) the patients used a therapeutic video game or therapeutic virtual reality device. Eighteen publications were included. The devices studied are mainly therapeutic software developed specifically for therapeutic care. They can be classified according to their therapeutic objectives. These targets corresponded to objectives of psychosocial rehabilitation: improvement of residual symptomatology, cognitive remediation, remediation of cognition and social skills, improvement of everyday life activities, support for occupational integration. Very different devices were proposed. Some researchers analysed programs developed specifically for patients with schizophrenia, while others were interested in the impact of commercial games. Most of the studies were recent, preliminary and European. The impact of these devices was globally positive, particularly concerning cognitive functions. Computer-assisted therapy, video games and virtual reality cannot replace usual care but could be used as adjunctive therapy. However, recommending their use seems premature because of the recent and preliminary character of most studies. Moreover, a link is still lacking between this field of research in psychiatry and other fields of research, particularly game studies. Finally, it might be interesting to analyse more

The pastoral implications of human freedom according to Juan Luis Segundo

Directory of Open Access Journals (Sweden)

Vicente de Paula Ferreira

2016-09-01

Full Text Available The paper aims to reflect the issue of human freedom based on the underlying principles of the Christian faith in a time of anthropological vulnerability, especially in Latin American. It holds that Christianity must insist on its proposal to promote universal goodwill, despite a human horizon marked by selfishness and lust for power and money. This approach presupposes a radical position of a listener of the divine mystery, revealed in Jesus Christ, as a way to fulfill the human condition. Theoretical framework: Liberation Theology, in the view of Juan Luis Segundo, and its well-established tradition of transforming realities of injustice through faith, comprises the core argument of this text. Findings: Christian salvation necessarily implies the kenosis (κένωσις of Jesus, i.e., Christ “emptied Himself” (Ph. 2:7, and through His humble dispossession, He broke with all closed systems of the world, and inaugurated a new venture of a liberated freedom: the agape of love. Conclusion: Christian praxis as daily care for the poorest and prophecy of forgiveness rescues the memory of the victims of all forms of human selfishness. 

[Physical factors influencing the floristic relationships of pinyon pine (Pinaceae) from San Luis Potosi, Mexico].

Science.gov (United States)

Romero, Angélica; Luna, Mario; García, Edmundo

2014-06-01

In plant communities, the species distribution patterns and their relationships with environmental factors are of central importance in ecology. In San Luis Potosí of Mexico, woodlands of Pinus cembroides and P. johannis are sympatric, but P. cembroides tends to be located in South and Southwest slopes, in more disturbed sites; unlike, P. johannis, is mostly distributed in mesic areas, in North and Northeast slopes. The aim of this study was to analyze the influence of some physical factors on the floristic similarity of pinyon pine P. cembroides and P. johannis. The study area was located in the Sierra San Miguelito, San Luis Potosí, Mexico. We selected 40 sampling units spread over an area of 50km2. In each unit, we laid out two 20m long lines perpendicular to each other, in which we recorded cover data of the plant species intercepted. We developed two data matrices, the first one including cover values of 91 species, and the second one, considering seven topographical, climatic, and solar radiation variables. We applied cluster analysis and ordination to explore the influence of environmental variables on the floristic differentiation of pinyon pine woodlands. Clustering showed six groups, the first three characterized by P. cembroides. The ordination showed that variance represented by the first three axes was 65.9%. Axis 1 was positively correlated with altitude and negatively with mean annual temperature; axes two and three, showed low correlation with the variables tested. P. cembroides woodlands and accompanying flora tend to be located in lower altitude, higher mean annual temperature, and mainly in South-Southwestern slopes. In contrast, stands of P. johannis, mixed stands of P. johannis-P. cembroides, and Quercus potosina, were usually founded in greater altitudes, mean annual temperature slightly lower, and North-Northeastern exposure. The sites of these monospecific and mixed woodlands with associated species, indicators of environmental variables

Analysis of José Luis Rodríguez Zapatero’s nonverbal communication

Directory of Open Access Journals (Sweden)

Imelda Rodríguez-Escanciano, Ph.D.

2010-01-01

Full Text Available Aware of television’s high level of persuasion and impact, politicians have progressively adapted their messages to the guidelines of the audiovisual media in order to strongly persuade TV viewers, which are seen as potential voters. Currently, the communication, marketing and telegenicity teams of most political parties do not only train their politicians to effectively use verbal communication, but they also try to reinforce their non-verbal communications skills, because they understand that a really effective message is only created through the correct combination of both dimensions. This article presents an in-depth study of the nonverbal communication displayed by the Prime Minister of Spain, José Luis Rodríguez Zapatero, during the first quarter of 2010 when a political topic predominated in the agenda: the financial crisis. Through content analysis, and a self-developed methodology, the study aims to decipher the strategic meaning of this political leader’s kinesic behaviour in the second edition of Telediario, the news programme broadcast by Spain’s Public TV Network (Televisión Española, aka, TVE.

Children aged 6-24 months like to watch YouTube videos but could not learn anything from them.

Science.gov (United States)

Yadav, Savita; Chakraborty, Pinaki; Mittal, Prabhat; Arora, Udit

2018-03-20

Parents sometimes show young children YouTube videos on their smartphones. We studied the interaction of 55 Indian children born between December 2014 and May 2015 who watched YouTube videos when they were 6-24 months old. The children were recruited by the researchers using professional and personal contacts and visited by the same two observers at four ages, for at least 10 minutes. The observers recorded the children's abilities to interact with touch screens and identify people in videos and noted what videos attracted them the most. The children were attracted to music at six months of age and were interested in watching the videos at 12 months. They could identify their parents in videos at 12 months and themselves by 24 months. They started touching the screen at 18 months and could press the buttons that appeared on the screen, but did not understand their use. The children preferred watching dance performances by multiple artists with melodical music, advertisements for products they used and videos showing toys and balloons. Children up to two years of age could be entertained and kept busy by showing them YouTube clips on smartphones, but did not learn anything from the videos. ©2018 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.

Role of video games in improving health-related outcomes: a systematic review.

Science.gov (United States)

Primack, Brian A; Carroll, Mary V; McNamara, Megan; Klem, Mary Lou; King, Brandy; Rich, Michael; Chan, Chun W; Nayak, Smita

2012-06-01

Video games represent a multibillion-dollar industry in the U.S. Although video gaming has been associated with many negative health consequences, it also may be useful for therapeutic purposes. The goal of this study was to determine whether video games may be useful in improving health outcomes. Literature searches were performed in February 2010 in six databases: the Center on Media and Child Health Database of Research, MEDLINE, CINAHL, PsycINFO, EMBASE, and the Cochrane Central Register of Controlled Trials. Reference lists were hand-searched to identify additional studies. Only RCTs that tested the effect of video games on a positive, clinically relevant health consequence were included. Study selection criteria were strictly defined and applied by two researchers working independently. Study background information (e.g., location, funding source); sample data (e.g., number of study participants, demographics); intervention and control details; outcomes data; and quality measures were abstracted independently by two researchers. Of 1452 articles retrieved using the current search strategy, 38 met all criteria for inclusion. Eligible studies used video games to provide physical therapy, psychological therapy, improved disease self-management, health education, distraction from discomfort, increased physical activity, and skills training for clinicians. Among the 38 studies, a total of 195 health outcomes were examined. Video games improved 69% of psychological therapy outcomes, 59% of physical therapy outcomes, 50% of physical activity outcomes, 46% of clinician skills outcomes, 42% of health education outcomes, 42% of pain distraction outcomes, and 37% of disease self-management outcomes. Study quality was generally poor; for example, two thirds (66%) of studies had follow-up periods of video games to improve health outcomes, particularly in the areas of psychological therapy and physical therapy. RCTs with appropriate rigor will help build evidence in this

La cofradía de la Santa Veracruz y los planos arquitectónicos más antiguos de San Luis Potosí: Un ejemplo del corporativismo novohispano a través de la arquitectura

OpenAIRE

Hernández Soubervielle, Armando

2014-01-01

El presente artículo discurre por tres ejes fundamentales. El primero de ellos es aportar información obtenida de fuentes primarias, referente a la cofradía de la Santa Veracruz de San Luis Potosí, lo que sirve para dar a conocer y analizar por primera vez los planos arquitectónicos más antiguos (1620) de San Luis Potosí, mismos que hasta ahora estaban inéditos. A la luz de estos planos y su interpretación, se mostrará su relación con el tratado de arquitectura de Sebastián Serlio y de cómo e...

SIRSALE: integrated video database management tools

Science.gov (United States)

Brunie, Lionel; Favory, Loic; Gelas, J. P.; Lefevre, Laurent; Mostefaoui, Ahmed; Nait-Abdesselam, F.

2002-07-01

Video databases became an active field of research during the last decade. The main objective in such systems is to provide users with capabilities to friendly search, access and playback distributed stored video data in the same way as they do for traditional distributed databases. Hence, such systems need to deal with hard issues : (a) video documents generate huge volumes of data and are time sensitive (streams must be delivered at a specific bitrate), (b) contents of video data are very hard to be automatically extracted and need to be humanly annotated. To cope with these issues, many approaches have been proposed in the literature including data models, query languages, video indexing etc. In this paper, we present SIRSALE : a set of video databases management tools that allow users to manipulate video documents and streams stored in large distributed repositories. All the proposed tools are based on generic models that can be customized for specific applications using ad-hoc adaptation modules. More precisely, SIRSALE allows users to : (a) browse video documents by structures (sequences, scenes, shots) and (b) query the video database content by using a graphical tool, adapted to the nature of the target video documents. This paper also presents an annotating interface which allows archivists to describe the content of video documents. All these tools are coupled to a video player integrating remote VCR functionalities and are based on active network technology. So, we present how dedicated active services allow an optimized video transport for video streams (with Tamanoir active nodes). We then describe experiments of using SIRSALE on an archive of news video and soccer matches. The system has been demonstrated to professionals with a positive feedback. Finally, we discuss open issues and present some perspectives.

Geology and petrography of basement in south extreme in Sierra Grande de San Luis, Argentina

International Nuclear Information System (INIS)

Morosini, A.; Ortiz Suarez, A.

2007-01-01

In the south of the Sierra de San Luis is recognized a basement composed by La Escalerilla and Los Puquios granites, accompanied by schist, mylonite s and mafic-ultramafic rocks. The schists, La Escalerilla granite and the mafic -ultramafic rocks are affected by a regional metamorphism in anphibolites facies, the two first present a N-S foliation di ping to east. The mylonite s correspond to a second event of deformation, distributed in thin belts of NNE-SSO direction and inclination to east, developed in green schist to anphibolites facies. Los Puquios granite represents the more young of the basement rocks and the intrusion was associated with a shear zone. Los Puquios granite forms dikes and small plutons cutting La Escalerilla granite and micas chits in high cortical levels

La reescritura de La infancia en Los días ocultos de Luis Oyarzún

Directory of Open Access Journals (Sweden)

Lorena Amaro Castro

2013-12-01

Full Text Available El filósofo Luis Oyarzún escribió dos novelas de carácter autobiográfico en que presenta las percepciones de un niño de provincia: La infancia (1940 y Los días ocultos (1955. Críticos como Roberto Hozven, Leonidas Morales y Olga Grau manifiestan que la segunda es una reelaboración de la primera. El siguiente artículo desarrolla una comparación entre ambos textos, buscando dilucidar y comprender cuáles son las diferencias entre ellos y en qué medida revelan una maduración en la escritura e inquietudes de un autor que ocupa un lugar hasta ahora marginal en la construcción canónica filosófica y literaria chilena.

The Role of Violent Video Game Content in Adolescent Development: Boys' Perspectives

Science.gov (United States)

Olson, Cheryl K.; Kutner, Lawrence A.; Warner, Dorothy E.

2008-01-01

Numerous policies have been proposed at the local, state, and national level to restrict youth access to violent video and computer games. Although studies are cited to support policies, there is no published research on how children perceive the uses and influence of violent interactive games. The authors conduct focus groups with 42 boys ages 12…

Medical video server construction.

Science.gov (United States)

Dańda, Jacek; Juszkiewicz, Krzysztof; Leszczuk, Mikołaj; Loziak, Krzysztof; Papir, Zdzisław; Sikora, Marek; Watza, Rafal

2003-01-01

The paper discusses two implementation options for a Digital Video Library, a repository used for archiving, accessing, and browsing of video medical records. Two crucial issues to be decided on are a video compression format and a video streaming platform. The paper presents numerous decision factors that have to be taken into account. The compression formats being compared are DICOM as a format representative for medical applications, both MPEGs, and several new formats targeted for an IP networking. The comparison includes transmission rates supported, compression rates, and at least options for controlling a compression process. The second part of the paper presents the ISDN technique as a solution for provisioning of tele-consultation services between medical parties that are accessing resources uploaded to a digital video library. There are several backbone techniques (like corporate LANs/WANs, leased lines or even radio/satellite links) available, however, the availability of network resources for hospitals was the prevailing choice criterion pointing to ISDN solutions. Another way to provide access to the Digital Video Library is based on radio frequency domain solutions. The paper describes possibilities of both, wireless and cellular network's data transmission service to be used as a medical video server transport layer. For the cellular net-work based solution two communication techniques are used: Circuit Switched Data and Packet Switched Data.

Image processing of integrated video image obtained with a charged-particle imaging video monitor system

International Nuclear Information System (INIS)

Iida, Takao; Nakajima, Takehiro

1988-01-01

A new type of charged-particle imaging video monitor system was constructed for video imaging of the distributions of alpha-emitting and low-energy beta-emitting nuclides. The system can display not only the scintillation image due to radiation on the video monitor but also the integrated video image becoming gradually clearer on another video monitor. The distortion of the image is about 5% and the spatial resolution is about 2 line pairs (lp)mm -1 . The integrated image is transferred to a personal computer and image processing is performed qualitatively and quantitatively. (author)

Use of video games for the treatment of amblyopia.

Science.gov (United States)

Foss, Alexander J E

2017-05-01

To review the literature up to recent for the use of videos, videogames and dichoptic stimulation as a treatment for amblyopia. There have been three strategies explored. The first is to use videos and videogames monocularly with the normal eye covered. The second is dichoptic stimulation with a common background presented to both eyes and an enriched foreground to the amblyopic eye. The third are games specifically designed to generate stereopsis. Most work has focused on the second of these approaches but both of the first two approaches seem to give a similar improvement of 0.1-0.2 logMAR. One large randomized control trial (RCT) has published showing that dichoptic stimulation is not inferior to patching but no evidence that it was superior. It also showed that video games have their own compliance problems and a second smaller RCT did suggest that videogames, with a game designed by a gaming company, was superior. Most of the work done has had methodological issues and should be considered exploratory rather than definitive. Dichoptic stimulation is a viable treatment option for the treatment of amblyopia. The first trial results have shown results that are not superior to patching but they are not without methodological issues. There is sufficient encouragement to justify further research in this area.

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... YouTube Videos: Amblyopia Embedded video for NEI YouTube Videos: Amblyopia ... *PDF files require the free Adobe® Reader® software for viewing. This website is maintained by the ...

Autour des “scénographies auctoriales” : entretien avec José-Luis Diaz, auteur de L’écrivain imaginaire (2007 “Authorial scenographies”: an interview with José-Luis Diaz, author of L’écrivain imaginaire (2007

Directory of Open Access Journals (Sweden)

Dominique Maingueneau

2009-10-01

Full Text Available José-Luis, selon ta propre formulation, ton livre L’écrivain imaginaire s’insère dans une histoire des représentations de l’écrivain. Pourrais-tu nous en dire plus sur les tenants et les aboutissants de ce projet ? En particulier, dans quel sens prends-tu l’expression « écrivain imaginaire », à distinguer de la personne réelle de l’écrivain ?Au début de mes recherches, à l’heure où l’auteur était censé être mort selon le titre célèbre d’un article de Roland Barthes (1968, j’ai pensé d’emblée...

Smart Streaming for Online Video Services

OpenAIRE

Chen, Liang; Zhou, Yipeng; Chiu, Dah Ming

2013-01-01

Bandwidth consumption is a significant concern for online video service providers. Practical video streaming systems usually use some form of HTTP streaming (progressive download) to let users download the video at a faster rate than the video bitrate. Since users may quit before viewing the complete video, however, much of the downloaded video will be "wasted". To the extent that users' departure behavior can be predicted, we develop smart streaming that can be used to improve user QoE with ...

Video outside versus video inside the web: do media setting and image size have an impact on the emotion-evoking potential of video?

NARCIS (Netherlands)

Verleur, R.; Verhagen, Pleunes Willem; Crawford, Margaret; Simonson, Michael; Lamboy, Carmen

2001-01-01

To explore the educational potential of video-evoked affective responses in a Web-based environment, the question was raised whether video in a Web-based environment is experienced differently from video in a traditional context. An experiment was conducted that studied the affect-evoking power of

Video games: good, bad, or other?

Science.gov (United States)

Prot, Sara; McDonald, Katelyn A; Anderson, Craig A; Gentile, Douglas A

2012-06-01

Video games are a pervasive pastime among children and adolescents. The growing popularity of video games has instigated a debate among parents, researchers, video game producers, and policymakers concerning potential harmful and helpful effects of video games on children. This article provides an overview of research findings on the positive and negative effects of video games, thus providing an empirical answer to the question, are video games good or bad? The article also provides some guidelines to help pediatricians, parents, and other caregivers protect children from negative effects and to maximize positive effects of video games. Copyright © 2012 Elsevier Inc. All rights reserved.

Physiological indicators of pathologic video game use in adolescence.

Science.gov (United States)

Coyne, Sarah M; Dyer, W Justin; Densley, Rebecca; Money, Nathan M; Day, Randal D; Harper, James M

2015-03-01

Pathologic video game use (PVGU) has been associated with a host of negative psychological, physical, and social outcomes during adolescence; however, little research has examined physiological predictors of such use. The purpose of the study was to examine physiological predictors of the development of PVGU across adolescence. The article involves a 1-year longitudinal study across midadolescence. Participants were 374 adolescents and their parents from a large metropolitan area in the Northwest United States. PVGU was assessed via questionnaire, as were a number of control variables. A number of physiological indicators including respiratory sinus arrhythmia (RSA) and galvanic skin conductance (indices of parasympathetic and sympathetic nervous system activity, respectively) were measured during baseline, a cognitively stimulating task (Rubik's cube), and a family problem-solving task. Less RSA withdrawal to a cognitively simulating task was related to greater pathologic video game symptoms, but less RSA withdrawal to a family problem-solving task was associated with the presence of pathologic video game symptoms (p video game symptoms (p < .01). These findings suggest that adolescents who do not find cognitive tasks stimulating physiologically have a greater severity of PVGU. Additionally, adolescents who show physiological signs of stress in a family task were more likely to have PVGU symptoms and only girls have more severe PVGU levels. This study is the first to show that physiological indicators predict PVGU over time in adolescence and has important implications regarding the prevention and treatment of PVGU in adolescence. Copyright © 2015 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

Blind prediction of natural video quality.

Science.gov (United States)

Saad, Michele A; Bovik, Alan C; Charrier, Christophe

2014-03-01

We propose a blind (no reference or NR) video quality evaluation model that is nondistortion specific. The approach relies on a spatio-temporal model of video scenes in the discrete cosine transform domain, and on a model that characterizes the type of motion occurring in the scenes, to predict video quality. We use the models to define video statistics and perceptual features that are the basis of a video quality assessment (VQA) algorithm that does not require the presence of a pristine video to compare against in order to predict a perceptual quality score. The contributions of this paper are threefold. 1) We propose a spatio-temporal natural scene statistics (NSS) model for videos. 2) We propose a motion model that quantifies motion coherency in video scenes. 3) We show that the proposed NSS and motion coherency models are appropriate for quality assessment of videos, and we utilize them to design a blind VQA algorithm that correlates highly with human judgments of quality. The proposed algorithm, called video BLIINDS, is tested on the LIVE VQA database and on the EPFL-PoliMi video database and shown to perform close to the level of top performing reduced and full reference VQA algorithms.

Hierarchical event selection for video storyboards with a case study on snooker video visualization.

Science.gov (United States)

Parry, Matthew L; Legg, Philip A; Chung, David H S; Griffiths, Iwan W; Chen, Min

2011-12-01

Video storyboard, which is a form of video visualization, summarizes the major events in a video using illustrative visualization. There are three main technical challenges in creating a video storyboard, (a) event classification, (b) event selection and (c) event illustration. Among these challenges, (a) is highly application-dependent and requires a significant amount of application specific semantics to be encoded in a system or manually specified by users. This paper focuses on challenges (b) and (c). In particular, we present a framework for hierarchical event representation, and an importance-based selection algorithm for supporting the creation of a video storyboard from a video. We consider the storyboard to be an event summarization for the whole video, whilst each individual illustration on the board is also an event summarization but for a smaller time window. We utilized a 3D visualization template for depicting and annotating events in illustrations. To demonstrate the concepts and algorithms developed, we use Snooker video visualization as a case study, because it has a concrete and agreeable set of semantic definitions for events and can make use of existing techniques of event detection and 3D reconstruction in a reliable manner. Nevertheless, most of our concepts and algorithms developed for challenges (b) and (c) can be applied to other application areas. © 2010 IEEE

Intelligent keyframe extraction for video printing

Science.gov (United States)

Zhang, Tong

2004-10-01

Nowadays most digital cameras have the functionality of taking short video clips, with the length of video ranging from several seconds to a couple of minutes. The purpose of this research is to develop an algorithm which extracts an optimal set of keyframes from each short video clip so that the user could obtain proper video frames to print out. In current video printing systems, keyframes are normally obtained by evenly sampling the video clip over time. Such an approach, however, may not reflect highlights or regions of interest in the video. Keyframes derived in this way may also be improper for video printing in terms of either content or image quality. In this paper, we present an intelligent keyframe extraction approach to derive an improved keyframe set by performing semantic analysis of the video content. For a video clip, a number of video and audio features are analyzed to first generate a candidate keyframe set. These features include accumulative color histogram and color layout differences, camera motion estimation, moving object tracking, face detection and audio event detection. Then, the candidate keyframes are clustered and evaluated to obtain a final keyframe set. The objective is to automatically generate a limited number of keyframes to show different views of the scene; to show different people and their actions in the scene; and to tell the story in the video shot. Moreover, frame extraction for video printing, which is a rather subjective problem, is considered in this work for the first time, and a semi-automatic approach is proposed.

Effect of MP4 Therapy Videos on Adherence to Voice Therapy Home Practice in Children With Dysphonia.

Science.gov (United States)

Braden, Maia N; van Leer, Eva

2017-01-01

Voice disorders in children are often treated with behavioral voice therapy, which requires home practice of exercises. Previous studies with adults demonstrated increased practice frequency when patients were given videos of a clinician and patient performing therapy tasks. The purpose of this study was to determine whether videos of practice exercises would increase adherence to therapy in children. The study used a randomized double crossover research design. Twenty-eight patients, aged 6-18, referred for voice therapy were included in the study. Two conditions were alternated on a weekly basis: standard-of-care therapy and standard-of-care therapy with video models added. Participants recorded practice frequency and participated in semi-structured interviews, which were analyzed for themes. Participants practiced an average of 1.79 times per day without videos and 1.72 with videos (P = 0.743), indicating no significant difference between conditions. There was also no age group effect (P = 0.314). Qualitative analysis of interview responses established the following themes: (1) I knew how to do my exercises, (2) I didn't like seeing/hearing myself, (3) Videos helped me remember to practice, (4) I didn't like the video player itself, (5) The videos didn't make a difference with practice, and (6) Practicing was no fun. Video models of therapy tasks do not appear to influence adherence to home practice frequency in children with voice disorders, in contrast to findings in adults. Videos were found useful by several participants as reminders to practice. Copyright © 2017 The Voice Foundation. Published by Elsevier Inc. All rights reserved.

Is Video-Based Education an Effective Method in Surgical Education? A Systematic Review.

Science.gov (United States)

Ahmet, Akgul; Gamze, Kus; Rustem, Mustafaoglu; Sezen, Karaborklu Argut

2018-02-12

Visual signs draw more attention during the learning process. Video is one of the most effective tool including a lot of visual cues. This systematic review set out to explore the influence of video in surgical education. We reviewed the current evidence for the video-based surgical education methods, discuss the advantages and disadvantages on the teaching of technical and nontechnical surgical skills. This systematic review was conducted according to the guidelines defined in the preferred reporting items for systematic reviews and meta-analyses statement. The electronic databases: the Cochrane Library, Medline (PubMED), and ProQuest were searched from their inception to the 30 January 2016. The Medical Subject Headings (MeSH) terms and keywords used were "video," "education," and "surgery." We analyzed all full-texts, randomised and nonrandomised clinical trials and observational studies including video-based education methods about any surgery. "Education" means a medical resident's or student's training and teaching process; not patients' education. We did not impose restrictions about language or publication date. A total of nine articles which met inclusion criteria were included. These trials enrolled 507 participants and the total number of participants per trial ranged from 10 to 172. Nearly all of the studies reviewed report significant knowledge gain from video-based education techniques. The findings of this systematic review provide fair to good quality studies to demonstrate significant gains in knowledge compared with traditional teaching. Additional video to simulator exercise or 3D animations has beneficial effects on training time, learning duration, acquisition of surgical skills, and trainee's satisfaction. Video-based education has potential for use in surgical education as trainees face significant barriers in their practice. This method is effective according to the recent literature. Video should be used in addition to standard techniques

Video game genre preference, physical activity and screen-time in adolescent boys from low-income communities.

Science.gov (United States)

Thorne, Hayden T; Smith, Jordan J; Morgan, Philip J; Babic, Mark J; Lubans, David R

2014-12-01

The primary aim of this study was to examine the association between the types of video games played by adolescent boys and their participation in physical activity and recreational screen-time. Participants were 320 boys (mean age = 12.7, ±0.5 years) from 14 secondary schools located in low-income areas of New South Wales, Australia. Outcomes included height, weight, physical activity (accelerometers), total screen-time, and video game genre preference. Significant differences in both weekday and weekend screen-time were found between video game genre groups. In addition, significant differences in overall activity and moderate-to-vigorous physical activity were found between genre groups on weekdays. Between-group differences in physical activity on weekends were not statistically significant. This cross-sectional study has demonstrated that video game genre preference is associated with physical activity and screen-time in adolescent boys from low-income communities. Copyright © 2014 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

Media and memory: the efficacy of video and print materials for promoting patient education about asthma.

Science.gov (United States)

Wilson, Elizabeth A H; Park, Denise C; Curtis, Laura M; Cameron, Kenzie A; Clayman, Marla L; Makoul, Gregory; Vom Eigen, Keith; Wolf, Michael S

2010-09-01

We examined the effects of presentation medium on immediate and delayed recall of information and assessed the effect of giving patients take-home materials after initial presentations. Primary-care patients received video-based, print-based or no asthma education about asthma symptoms and triggers and then answered knowledge-based questions. Print participants and half the video participants received take-home print materials. A week later, available participants completed the knowledge assessment again. Participants receiving either intervention outperformed controls on immediate and delayed assessments (pprint and video participants. A week later, receiving take-home print predicted better performance (pprint (pprint participants immediately after seeing the materials (pmaterials, review predicted marginally better recall (p=0.06). Video and print interventions can promote recall of health-related information. Additionally, reviewable materials, if they are utilized, may improve retention. When creating educational tools, providers should consider how long information must be retained, its content, and the feasibility of providing tangible supporting materials. Copyright (c) 2010. Published by Elsevier Ireland Ltd.

Effect of Stereoscopic Anaglyphic 3-Dimensional Video Didactics on Learning Neuroanatomy.

Science.gov (United States)

Goodarzi, Amir; Monti, Sara; Lee, Darrin; Girgis, Fady

2017-11-01

The teaching of neuroanatomy in medical education has historically been based on didactic instruction, cadaveric dissections, and intraoperative experience for students. Multiple novel 3-dimensional (3D) modalities have recently emerged. Among these, stereoscopic anaglyphic video is easily accessible and affordable, however, its effects have not yet formally been investigated. This study aimed to investigate if 3D stereoscopic anaglyphic video instruction in neuroanatomy could improve learning for content-naive students, as compared with 2-dimensional (2D) video instruction. A single-site controlled prospective case control study was conducted at the School of Education. Content knowledge was assessed at baseline, followed by the presentation of an instructional neuroanatomy video. Participants viewed the video in either 2D or 3D format and then completed a written test of skull base neuroanatomy. Pretest and post-test performances were analyzed with independent Student's t-tests and analysis of covariance. Our study was completed by 249 subjects. At baseline, the 2D (n = 124, F = 97) and 3D groups (n = 125, F = 96) were similar, although the 3D group was older by 1.7 years (P = 0.0355) and the curricula of participating classes differed (P < 0.0001). Average scores for the 3D group were higher for both pretest (2D, M = 19.9%, standard deviation [SD] = 12.5% vs. 3D, M = 23.9%, SD = 14.9%, P = 0.0234) and post-test performances (2D, M = 68.5%, SD = 18.6% vs. 3D, M = 77.3%, SD = 18.8%, P = 0.003), but the magnitude of improvement across groups did not reach statistical significance (2D, M = 48.7%, SD = 21.3%, vs. 3D, M = 53.5%, SD = 22.7%, P = 0.0855). Incorporation of 3D video instruction into curricula without careful integration is insufficient to promote learning over 2D video. Published by Elsevier Inc.

Rheumatoid Arthritis Educational Video Series

Medline Plus

Full Text Available ... Patient Webcasts / Rheumatoid Arthritis Educational Video Series Rheumatoid Arthritis Educational Video Series This series of five videos ... member of our patient care team. Managing Your Arthritis Managing Your Arthritis Managing Chronic Pain and Depression ...

Rheumatoid Arthritis Educational Video Series

Science.gov (United States)

... Corner / Patient Webcasts / Rheumatoid Arthritis Educational Video Series Rheumatoid Arthritis Educational Video Series This series of five videos ... Your Arthritis Managing Chronic Pain and Depression in Arthritis Nutrition & Rheumatoid Arthritis Arthritis and Health-related Quality of Life ...

Video game addiction: The push to pathologize video games

DEFF Research Database (Denmark)

Nielsen, Rune Kristian Lundedal; Ferguson, Christopher; Bean, Anthony

2017-01-01

With proposals to include “gaming disorder” in both the Diagnostic and Statistical Manual (DSM) and International Compendium of Diseases (ICD), the concept of video game addiction has gained traction. However, many aspects of this concept remain controversial. At present, little clarity has been...... achieved regarding diagnostic criteria and appropriate symptoms. It is unclear if symptoms that involve problematic video gaming behavior should be reified as a new disorder, or are the expression of underlying mental conditions. Nonetheless, the recent proposals around gaming disorder from respected...... and necessity of the overarching construct. This raises multiple concerns. First, the current approaches to understanding “gaming addiction” are rooted in substance abuse research and approaches do not necessarily translate to media consumption. Second, some research has indicated that “video game addiction...

Multimodal Feature Learning for Video Captioning

Directory of Open Access Journals (Sweden)

Sujin Lee

2018-01-01

Full Text Available Video captioning refers to the task of generating a natural language sentence that explains the content of the input video clips. This study proposes a deep neural network model for effective video captioning. Apart from visual features, the proposed model learns additionally semantic features that describe the video content effectively. In our model, visual features of the input video are extracted using convolutional neural networks such as C3D and ResNet, while semantic features are obtained using recurrent neural networks such as LSTM. In addition, our model includes an attention-based caption generation network to generate the correct natural language captions based on the multimodal video feature sequences. Various experiments, conducted with the two large benchmark datasets, Microsoft Video Description (MSVD and Microsoft Research Video-to-Text (MSR-VTT, demonstrate the performance of the proposed model.

Video game use and cognitive performance: does it vary with the presence of problematic video game use?

Science.gov (United States)

Collins, Emily; Freeman, Jonathan

2014-03-01

Action video game players have been found to outperform nonplayers on a variety of cognitive tasks. However, several failures to replicate these video game player advantages have indicated that this relationship may not be straightforward. Moreover, despite the discovery that problematic video game players do not appear to demonstrate the same superior performance as nonproblematic video game players in relation to multiple object tracking paradigms, this has not been investigated for other tasks. Consequently, this study compared gamers and nongamers in task switching ability, visual short-term memory, mental rotation, enumeration, and flanker interference, as well as investigated the influence of self-reported problematic video game use. A total of 66 participants completed the experiment, 26 of whom played action video games, including 20 problematic players. The results revealed no significant effect of playing action video games, nor any influence of problematic video game play. This indicates that the previously reported cognitive advantages in video game players may be restricted to specific task features or samples. Furthermore, problematic video game play may not have a detrimental effect on cognitive performance, although this is difficult to ascertain considering the lack of video game player advantage. More research is therefore sorely needed.

Video frame processor

International Nuclear Information System (INIS)

Joshi, V.M.; Agashe, Alok; Bairi, B.R.

1993-01-01

This report provides technical description regarding the Video Frame Processor (VFP) developed at Bhabha Atomic Research Centre. The instrument provides capture of video images available in CCIR format. Two memory planes each with a capacity of 512 x 512 x 8 bit data enable storage of two video image frames. The stored image can be processed on-line and on-line image subtraction can also be carried out for image comparisons. The VFP is a PC Add-on board and is I/O mapped within the host IBM PC/AT compatible computer. (author). 9 refs., 4 figs., 19 photographs

Swordmanship as Mathematical Science: The Curious Case of Luis Pacheco de Narváez

Directory of Open Access Journals (Sweden)

Felix Kurt Ernst Schmelzer

2016-11-01

Full Text Available From the 15th century on, the practitioners of the mechanical arts obtain a new self-confidence and do no longer want to be regarded merely as manual workers. In this context, they frequently underline the mathematical basis of their discipline in order to increase its value from the status of a mechanical to that of a liberal art. In the Spanish golden age period, the military art, amongst others, is conceived as a mathematical discipline. A particularly curious case is the Libro de las grandezas de la espada (1600 whose author, Luis Pacheco de Narváez (1570-1640, propagates the art of swordsmanship, which he names «the true skill», as a science based on the disciplines of the quadrivium. The present article outlines the arguments applied by Pacheco in a preliminary chapter in order to prove the mathematical and scientific status of his discipline.

Visual Analytics and Storytelling through Video

Energy Technology Data Exchange (ETDEWEB)

Wong, Pak C.; Perrine, Kenneth A.; Mackey, Patrick S.; Foote, Harlan P.; Thomas, Jim

2005-10-31

This paper supplements a video clip submitted to the Video Track of IEEE Symposium on Information Visualization 2005. The original video submission applies a two-way storytelling approach to demonstrate the visual analytics capabilities of a new visualization technique. The paper presents our video production philosophy, describes the plot of the video, explains the rationale behind the plot, and finally, shares our production experiences with our readers.

NEI You Tube Videos: Amblyopia

Medline Plus

Full Text Available ... questions Clinical Studies Publications Catalog Photos and Images Spanish Language Information Grants and Funding Extramural Research Division ... Low Vision Refractive Errors Retinopathy of Prematurity Science Spanish Videos Webinars NEI YouTube Videos: Amblyopia Embedded video ...

Interactive Video, The Next Step

Science.gov (United States)

Strong, L. R.; Wold-Brennon, R.; Cooper, S. K.; Brinkhuis, D.

2012-12-01

Video has the ingredients to reach us emotionally - with amazing images, enthusiastic interviews, music, and video game-like animations-- and it's emotion that motivates us to learn more about our new interest. However, watching video is usually passive. New web-based technology is expanding and enhancing the video experience, creating opportunities to use video with more direct interaction. This talk will look at an Educaton and Outreach team's experience producing video-centric curriculum using innovative interactive media tools from TED-Ed and FlixMaster. The Consortium for Ocean Leadership's Deep Earth Academy has partnered with the Center for Dark Energy Biosphere Investigations (C-DEBI) to send educators and a video producer aboard three deep sea research expeditions to the Juan de Fuca plate to install and service sub-seafloor observatories. This collaboration between teachers, students, scientists and media producers has proved a productive confluence, providing new ways of understanding both ground-breaking science and the process of science itself - by experimenting with new ways to use multimedia during ocean-going expeditions and developing curriculum and other projects post-cruise.

Real-time video quality monitoring

Science.gov (United States)

Liu, Tao; Narvekar, Niranjan; Wang, Beibei; Ding, Ran; Zou, Dekun; Cash, Glenn; Bhagavathy, Sitaram; Bloom, Jeffrey

2011-12-01

The ITU-T Recommendation G.1070 is a standardized opinion model for video telephony applications that uses video bitrate, frame rate, and packet-loss rate to measure the video quality. However, this model was original designed as an offline quality planning tool. It cannot be directly used for quality monitoring since the above three input parameters are not readily available within a network or at the decoder. And there is a great room for the performance improvement of this quality metric. In this article, we present a real-time video quality monitoring solution based on this Recommendation. We first propose a scheme to efficiently estimate the three parameters from video bitstreams, so that it can be used as a real-time video quality monitoring tool. Furthermore, an enhanced algorithm based on the G.1070 model that provides more accurate quality prediction is proposed. Finally, to use this metric in real-world applications, we present an example emerging application of real-time quality measurement to the management of transmitted videos, especially those delivered to mobile devices.

Collaborative Video Search Combining Video Retrieval with Human-Based Visual Inspection

NARCIS (Netherlands)

Hudelist, M.A.; Cobârzan, C.; Beecks, C.; van de Werken, Rob; Kletz, S.; Hürst, W.O.; Schoeffmann, K.

2016-01-01

We propose a novel video browsing approach that aims at optimally integrating traditional, machine-based retrieval methods with an interface design optimized for human browsing performance. Advanced video retrieval and filtering (e.g., via color and motion signatures, and visual concepts) on a

76 FR 55585 - Video Description: Implementation of the Twenty-First Century Communications and Video...

Science.gov (United States)

2011-09-08

... of Video Programming Report and Order (15 F.C.C.R. 15,230 (2000)), recon. granted in part and denied... dialogue, makes video programming more accessible to individuals who are blind or visually impaired. The... networks, and multichannel video programming distributor systems (``MVPDs'') with more than 50,000...

360° Operative Videos: A Randomised Cross-Over Study Evaluating Attentiveness and Information Retention.

Science.gov (United States)

Harrington, Cuan M; Kavanagh, Dara O; Wright Ballester, Gemma; Wright Ballester, Athena; Dicker, Patrick; Traynor, Oscar; Hill, Arnold; Tierney, Sean

2017-11-06

Although two-dimensional (2D) and three-dimensional videos have traditionally provided foundations for reviewing operative procedures, the recent 360º format may provide new dimensions to surgical education. This study sought to describe the production of a high quality 360º video for an index-operation (augmented with educational material), while evaluating for variances in attentiveness, information retention, and appraisal compared to 2D. A 6-camera synchronised array (GoPro Omni, [California, United States]) was suspended inverted and recorded an elective laparoscopic cholecystectomy in 2016. A single-blinded randomised cross-over study was performed to evaluate this video in 360º vs 2D formats. Group A experienced the 360º video using Samsung (Suwon, South-Korea) GearVR virtual-reality headsets, followed by the 2D experience on a 75-inch television. Group B were reversed. Each video was probed at designated time points for engagement levels and task-unrelated images or thoughts. Alternating question banks were administered following each video experience. Feedback was obtained via a short survey at study completion. The New Academic and Education Building (NAEB) in Dublin, Royal College of Surgeons in Ireland, July 2017. Preclinical undergraduate students from a medical university in Ireland. Forty students participated with a mean age of 23.2 ± 4.5 years and equal sex involvement. The 360º video demonstrated significantly higher engagement (p video as their learning platform of choice. Mean appraisal levels for the 360º platform were positive with mean responses of >8/10 for the platform for learning, immersion, and entertainment. This study describes the successful development and evaluation of a 360º operative video. This new video format demonstrated significant engagement and attentiveness benefits compared to traditional 2D formats. This requires further evaluation in the field of technology enhanced learning. Copyright © 2017 Association of

Escuela pública digital en pueblos originarios. La propuesta de la Universidad de la Punta para las comunidades Ranquel y Huarpe de la provincia de San Luis. Argentina

Directory of Open Access Journals (Sweden)

Silvia Baldivieso

2014-01-01

Full Text Available El artículo describe y analiza la propuesta de formación escolar que ofrece, actualmente, la Universidad de La Punta a comunidades originarias de la Provincia de San Luis, Argentina, en el marco del proyecto de Escuelas Públicas Digitales.La propuesta gubernamental de desarrollar acciones educativas orientadas al logro de una “Educación de Calidad para Todos”, articulada al trabajo, también gubernamental, de rescate de la memoria y la cultura de los pueblos pre existentes en el territorio de San Luis, ha dado lugar al desarrollo de un modelo de organización y gestión educativa y curricular particular, de enseñanza personalizada y aprendizaje autorregulado basado en las tecnologías de la información y la comunicación. Dicha organización, destinada a las comunidades originarias, abre sus puertas a otros habitantes del pueblo sanluiseño y atiende necesidades educativas de niños, jóvenes y adultos.

Perceptual video quality assessment in H.264 video coding standard using objective modeling.

Science.gov (United States)

Karthikeyan, Ramasamy; Sainarayanan, Gopalakrishnan; Deepa, Subramaniam Nachimuthu

2014-01-01

Since usage of digital video is wide spread nowadays, quality considerations have become essential, and industry demand for video quality measurement is rising. This proposal provides a method of perceptual quality assessment in H.264 standard encoder using objective modeling. For this purpose, quality impairments are calculated and a model is developed to compute the perceptual video quality metric based on no reference method. Because of the shuttle difference between the original video and the encoded video the quality of the encoded picture gets degraded, this quality difference is introduced by the encoding process like Intra and Inter prediction. The proposed model takes into account of the artifacts introduced by these spatial and temporal activities in the hybrid block based coding methods and an objective modeling of these artifacts into subjective quality estimation is proposed. The proposed model calculates the objective quality metric using subjective impairments; blockiness, blur and jerkiness compared to the existing bitrate only calculation defined in the ITU G 1070 model. The accuracy of the proposed perceptual video quality metrics is compared against popular full reference objective methods as defined by VQEG.

Comparison of the Effects of Continuous Video Modeling, Video Prompting, and Video Modeling on Task Completion by Young Adults with Moderate Intellectual Disability

Science.gov (United States)

Mechling, Linda C.; Ayres, Kevin M.; Bryant, Kathryn J.; Foster, Ashley L.

2014-01-01

This study compared the effects of three procedures (video prompting: VP, video modeling: VM, and continuous video modeling: CVM) on task completion by three high school students with moderate intellectual disability. The comparison was made across three sets of fundamentally different tasks (putting away household items in clusters of two items;…

Tobacco Content in Video Games: Categorization of Tobacco Typologies and Gamer Recall.

Science.gov (United States)

Forsyth, Susan R; Malone, Ruth E

2017-11-15

Tobacco content has been identified in popular video games played by adolescents. To date, there are no established instruments for categorizing tobacco content. We describe development and demonstrate the use of an instrument to categorize types of tobacco content. Interviews were conducted with 61 participants: 20 adolescents (mean age 17.7), and 41 adults (mean age 23.9), who discussed favorite games and recalled tobacco content. All games mentioned were examined for tobacco content by watching movies of game play on YouTube, examining individual game Wiki sites, and reviewing content descriptors provided by the Entertainment Software Rating Board (ESRB), Common Sense Media and the Internet Movie Database (IMDb). A typology of tobacco content was created and correlated with gamer recall of tobacco content. Participants together mentioned 366 games, of which 152 were unique. Tobacco content was verified in 39.5% (60/152) of games. Six categories of content were identified, including "no tobacco content." Of games containing tobacco, 88% (53/60) contained at least two categories of content. Games with more categories were associated with greater gamer recall of tobacco content. Tobacco content is present in video games and consciously recalled by players, with higher accuracy of recall associated with games featuring multiple types of tobacco content and more engaging, player-active content. Playing video games is now a daily part of most adolescents' lives. Tobacco content is present in many popular games. Currently there are no published instruments to assist in categorizing tobacco content in video games. This study describes a systematic approach to categorizing tobacco content in video games and demonstrates that games featuring more categories of tobacco content are associated with more accurate gamer recall of the presence of tobacco content when compared with games with fewer categories of content. Understanding the extent of such content will be essential

Urgencias neuroquirúrgicas en el Instituto Superior de Medicina Militar "Luis Díaz Soto": Estudio de cinco años

OpenAIRE

Felipe Morán, Armando; Quintanal Cordero, Nelson; Tápanes Domínguez, Alejandro; Pérez La O, Pablo; Fuentes Rodríguez, Nelson; Fuertes Vicente, Dania

2006-01-01

Se realizó un estudio prospectivo, descriptivo y longitudinal de la conducta neuroquirúrgica seguida con todos los pacientes atendidos desde enero de 1998 hasta diciembre de 2002 en el Cuerpo de Guardia del Instituto Superior de Medicina Militar “Dr. Luis Díaz Soto”. Los datos se obtuvieron en las entregas de guardia, registros médicos, historias clínicas, libro de control de intervenciones quirúrgicas y de ingresos. En total se atendieron 8 113 pacientes, de ellos el 17 % correspondió a niño...

Luis de León (1527-1591 y su teoría de la justicia: aspectos principales de su doctrina

Directory of Open Access Journals (Sweden)

Sebastián Contreras

2014-04-01

Full Text Available Las investigaciones sobre Luis de León se han centrado, sobre todo, en su mística, narrativa y teoría literaria. En este trabajo, el autor intenta desarrollar los principales aspectos de su teoría jurídica. Al igual que otros grandes teólogos de la Escuela de Salamanca, también León ha estudiado el problema de la naturaleza de la ley humana y su vinculación con el derecho natural. Éste es, justamente, el tema del siguiente trabajo.

Rheumatoid Arthritis Educational Video Series

Medline Plus

Full Text Available ... Corner / Patient Webcasts / Rheumatoid Arthritis Educational Video Series Rheumatoid Arthritis Educational Video Series This series of five videos ... Your Arthritis Managing Chronic Pain and Depression in Arthritis Nutrition & Rheumatoid Arthritis Arthritis and Health-related Quality of Life ...

Social video content delivery

CERN Document Server

Wang, Zhi; Zhu, Wenwu

2016-01-01

This brief presents new architecture and strategies for distribution of social video content. A primary framework for socially-aware video delivery and a thorough overview of the possible approaches is provided. The book identifies the unique characteristics of socially-aware video access and social content propagation, revealing the design and integration of individual modules that are aimed at enhancing user experience in the social network context. The change in video content generation, propagation, and consumption for online social networks, has significantly challenged the traditional video delivery paradigm. Given the massive amount of user-generated content shared in online social networks, users are now engaged as active participants in the social ecosystem rather than as passive receivers of media content. This revolution is being driven further by the deep penetration of 3G/4G wireless networks and smart mobile devices that are seamlessly integrated with online social networking and media-sharing s...

Children's Video Games as Interactive Racialization

OpenAIRE

Martin, Cathlena

2008-01-01

Cathlena Martin explores in her paper "Children's Video Games as Interactive Racialization" selected children's video games. Martin argues that children's video games often act as reinforcement for the games' television and film counterparts and their racializing characteristics and features. In Martin's analysis the video games discussed represent media through which to analyze racial identities and ideologies. In making the case for positive female minority leads in children's video games, ...

Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego, southern California—2016 data summary

Science.gov (United States)

Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.

2017-09-29

Executive SummaryWe surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2016. Surveys were done from March 30 to July 11 (LBVI) and from May 18 to July 30 (SWFL). We found 142 LBVI territories, at least 106 of which were occupied by pairs. Six additional transient LBVIs were detected. Of 20 banded LBVIs detected in the survey area, 9 had been given full color-band combinations prior to 2016, although we were unable to determine the exact color combination of 1 female LBVI. Seven other LBVIs with single (natal) federal bands were recaptured and banded in 2016. Four vireos with single dark blue federal bands indicating that they were banded as nestlings on the lower San Luis Rey River could not be recaptured for identification.Three SFWL territories were observed in the survey area in 2016. Two territories were occupied by pairs and one by a male of unknown breeding status. Both pairs attempted to nest at least once, and both pairs were successful, fledging three young each. Nesting began in early June and continued into July. Brown-Headed Cowbird (Molothrus ater) eggs were not observed in either nest. An additional 12 transient Willow Flycatchers of unknown subspecies were detected in 2016.Two of the five resident SWFLs were originally banded as nestlings on Marine Corps Base Camp Pendleton. One male and one female were banded as nestlings on Camp Pendleton in 2009 and 2011, respectively. One natal male of unknown breeding status, originally banded as a nestling on the middle San Luis Rey River in 2015, was recaptured and given a unique color combination in 2016. This male was later detected on Marine Corps Base Camp Pendleton.

Water Supply: Management of Water Sources in the City of San Luis Potosí (México, 1831-1887

Directory of Open Access Journals (Sweden)

Yuritzi Hernández Fuentes

2015-07-01

Full Text Available This paper proposes an approach about the management of water sources, hydraulic systems and the measures taken by the city government of San Luis Potosí (México concerning the need of water supply during the years 1831 to 1886. This paper examines two important projects on water management in the city: the aqueduct of La Cañada del Lobo and the policies taken by the authorities on waterways through La Corriente. Both projects faced several problems, including the outbreak of illnesses associated with bodies of water and shortage of liquid flow through the aqueduct of La Cañada del Lobo.

Subjective Video Quality Assessment in H.264/AVC Video Coding Standard

Directory of Open Access Journals (Sweden)

Z. Miličević

2012-11-01

Full Text Available This paper seeks to provide an approach for subjective video quality assessment in the H.264/AVC standard. For this purpose a special software program for the subjective assessment of quality of all the tested video sequences is developed. It was developed in accordance with recommendation ITU-T P.910, since it is suitable for the testing of multimedia applications. The obtained results show that in the proposed selective intra prediction and optimized inter prediction algorithm there is a small difference in picture quality (signal-to-noise ratio between decoded original and modified video sequences.

Illusory control, gambling, and video gaming: an investigation of regular gamblers and video game players.

Science.gov (United States)

King, Daniel L; Ejova, Anastasia; Delfabbro, Paul H

2012-09-01

There is a paucity of empirical research examining the possible association between gambling and video game play. In two studies, we examined the association between video game playing, erroneous gambling cognitions, and risky gambling behaviour. One hundred and fifteen participants, including 65 electronic gambling machine (EGM) players and 50 regular video game players, were administered a questionnaire that examined video game play, gambling involvement, problem gambling, and beliefs about gambling. We then assessed each groups' performance on a computerised gambling task that involved real money. A post-game survey examined perceptions of the skill and chance involved in the gambling task. The results showed that video game playing itself was not significantly associated with gambling involvement or problem gambling status. However, among those persons who both gambled and played video games, video game playing was uniquely and significantly positively associated with the perception of direct control over chance-based gambling events. Further research is needed to better understand the nature of this association, as it may assist in understanding the impact of emerging digital gambling technologies.

Seminar 2.0: Learning With Skype and Video Podcasts

Science.gov (United States)

Wessel, Paul; Anderson, Tiffany; Austin, Regan; Benediktsdottir, Asdis; Chandler, Michael T.; Conley, Michaela M.; Kim, Seung-Sep; Michaud, Robert L.; Rumpf, M. Elise; Sleeper, Jonathan D.; Weiss, Jonathan R.

2009-04-01

Graduate seminars typically involve reviewing key papers, ranging from seminal contributions by pioneers to the latest cutting-edge results published in journals such as Nature, Science, and Geophysical Research Letters. Ideally, guest lecturers are invited to add specific expertise and stimulate discussions. However, the increasing costs for travel make this an expensive proposition. Recent improvements in free videoconferencing over the Internet make it possible to invite distant experts to participate in seminars without involving expensive and time-consuming travel. Tools to record video conferences allow anyone to combine narrations with slide presentations and prepare merged video files for distribution over the Internet (i.e., podcasts). This brief report discusses such an experiment in a graduate seminar on advanced plate tectonics in the Department of Geology and Geophysics at University of Hawai`i at Manoa's (UHM) School of Ocean and Earth Science and Technology (SOEST). The podcasts are freely available from iTunes (UHM; SOEST; Public Course Lectures) and from http://www.soest.hawaii.edu/pwessel/podcasts.

Association between Urine Fluoride and Dental Fluorosis as a Toxicity Factor in a Rural Community in the State of San Luis Potosi

OpenAIRE

Jarquín-Yañez, Lizet; Mejía-Saavedra, José de Jesús; Molina-Frechero, Nelly; Gaona, Enrique; Rocha-Amador, Diana Olivia; López-Guzmán, Olga Dania; Bologna-Molina, Ronell

2015-01-01

Objective. The aim of this study is to investigate urine fluoride concentration as a toxicity factor in a rural community in the state of San Luis Potosi, Mexico. Materials and Methods. A sample of 111 children exposed to high concentrations of fluoride in drinking water (4.13?mg/L) was evaluated. Fluoride exposure was determined by measuring urine fluoride concentration using the potentiometric method with an ion selective electrode. The diagnosis of dental fluorosis was performed by clinica...

The incidence of essential competences and the owner-director on strong growth of a manufacturing SMEs in San Luis Potosí, Mexico

OpenAIRE

Molina Sánchez, Rubén

2009-01-01

This article is intended to analyse a group of manufacturing SMEs in San Luis Potosí, Mexico, in order to explain the characteristics which bring about their high level of growth. The context was therefore adapted to a research model sponsored by OECD, which gives pride of place to qualitative methods, well-founded theory and the use of software to analyse information given by interviewees. Categories of perception of innovation were identified (that is, control of information, essential comp...

Video-Based Big Data Analytics in Cyberlearning

Science.gov (United States)

Wang, Shuangbao; Kelly, William

2017-01-01

In this paper, we present a novel system, inVideo, for video data analytics, and its use in transforming linear videos into interactive learning objects. InVideo is able to analyze video content automatically without the need for initial viewing by a human. Using a highly efficient video indexing engine we developed, the system is able to analyze…

Robust video object cosegmentation.

Science.gov (United States)

Wang, Wenguan; Shen, Jianbing; Li, Xuelong; Porikli, Fatih

2015-10-01

With ever-increasing volumes of video data, automatic extraction of salient object regions became even more significant for visual analytic solutions. This surge has also opened up opportunities for taking advantage of collective cues encapsulated in multiple videos in a cooperative manner. However, it also brings up major challenges, such as handling of drastic appearance, motion pattern, and pose variations, of foreground objects as well as indiscriminate backgrounds. Here, we present a cosegmentation framework to discover and segment out common object regions across multiple frames and multiple videos in a joint fashion. We incorporate three types of cues, i.e., intraframe saliency, interframe consistency, and across-video similarity into an energy optimization framework that does not make restrictive assumptions on foreground appearance and motion model, and does not require objects to be visible in all frames. We also introduce a spatio-temporal scale-invariant feature transform (SIFT) flow descriptor to integrate across-video correspondence from the conventional SIFT-flow into interframe motion flow from optical flow. This novel spatio-temporal SIFT flow generates reliable estimations of common foregrounds over the entire video data set. Experimental results show that our method outperforms the state-of-the-art on a new extensive data set (ViCoSeg).

Assessing the Content of YouTube Videos in Educating Patients Regarding Common Imaging Examinations.

Science.gov (United States)

Rosenkrantz, Andrew B; Won, Eugene; Doshi, Ankur M

2016-12-01

To assess the content of currently available YouTube videos seeking to educate patients regarding commonly performed imaging examinations. After initial testing of possible search terms, the first two pages of YouTube search results for "CT scan," "MRI," "ultrasound patient," "PET scan," and "mammogram" were reviewed to identify educational patient videos created by health organizations. Sixty-three included videos were viewed and assessed for a range of features. Average views per video were highest for MRI (293,362) and mammography (151,664). Twenty-seven percent of videos used a nontraditional format (eg, animation, song, humor). All videos (100.0%) depicted a patient undergoing the examination, 84.1% a technologist, and 20.6% a radiologist; 69.8% mentioned examination lengths, 65.1% potential pain/discomfort, 41.3% potential radiation, 36.5% a radiology report/results, 27.0% the radiologist's role in interpretation, and 13.3% laboratory work. For CT, 68.8% mentioned intravenous contrast and 37.5% mentioned contrast safety. For MRI, 93.8% mentioned claustrophobia, 87.5% noise, 75.0% need to sit still, 68.8% metal safety, 50.0% intravenous contrast, and 0.0% contrast safety. For ultrasound, 85.7% mentioned use of gel. For PET, 92.3% mentioned radiotracer injection, 61.5% fasting, and 46.2% diabetic precautions. For mammography, unrobing, avoiding deodorant, and possible additional images were all mentioned by 63.6%; dense breasts were mentioned by 0.0%. Educational patient videos on YouTube regarding common imaging examinations received high public interest and may provide a valuable patient resource. Videos most consistently provided information detailing the examination experience and less consistently provided safety information or described the presence and role of the radiologist. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

Mechanisms of video-game epilepsy.

Science.gov (United States)

Fylan, F; Harding, G F; Edson, A S; Webb, R M

1999-01-01

We aimed to elucidate the mechanisms underlying video-game epilepsy by comparing the flicker- and spatial-frequency ranges over which photic and pattern stimulation elicited photoparoxysmal responses in two different populations: (a) 25 patients with a history of seizures experienced while playing video games; and (b) 25 age- and medication-matched controls with a history of photosensitive epilepsy, but no history of video-game seizures. Abnormality ranges were determined by measuring photoparoxysmal EEG abnormalities as a function of the flicker frequency of patterned and diffuse intermittent photic stimulation (IPS) and the spatial frequency of patterns on a raster display. There was no significant difference between the groups in respect of the abnormality ranges elicited by patterned or diffuse IPS or by spatial patterns. When the groups were compared at one specific IPS frequency (-50 Hz), however, the flicker frequency of European television displays, the video-game patients were significantly more likely to be sensitive. The results suggest that video-game seizures are a manifestation of photosensitive epilepsy. The increased sensitivity of video-game patients to IPS at 50 Hz indicates that display flicker may underlie video-game seizures. The similarity in photic- and pattern-stimulation ranges over which abnormalities are elicited in video-game patients and controls suggests that all patients with photosensitive epilepsy may be predisposed toward video-game-induced seizures. Photosensitivity screening should therefore include assessment by using both IPS at 50 Hz and patterns displayed on a television or monitor with a 50-Hz frame rate.

Video game induced knuckle pad.

Science.gov (United States)

Rushing, Mary E; Sheehan, Daniel J; Davis, Loretta S

2006-01-01

Controversy and concern surround the video game playing fascination of children. Scientific reports have explored the negative effects of video games on youth, with a growing number recognizing the actual physical implications of this activity. We offer another reason to discourage children's focus on video games: knuckle pads. A 13-year-old black boy presented with an asymptomatic, slightly hyperpigmented plaque over his right second distal interphalangeal joint. A punch biopsy specimen confirmed knuckle pad as the diagnosis, and a traumatic etiology from video game playing was suspected. Knuckle pads can be painful, cosmetically unappealing, and refractory to treatment. They can now be recognized as yet another potential adverse consequence of chronic video game playing.

3D video

CERN Document Server

Lucas, Laurent; Loscos, Céline

2013-01-01

While 3D vision has existed for many years, the use of 3D cameras and video-based modeling by the film industry has induced an explosion of interest for 3D acquisition technology, 3D content and 3D displays. As such, 3D video has become one of the new technology trends of this century.The chapters in this book cover a large spectrum of areas connected to 3D video, which are presented both theoretically and technologically, while taking into account both physiological and perceptual aspects. Stepping away from traditional 3D vision, the authors, all currently involved in these areas, provide th

Collaborative Video Sketching

DEFF Research Database (Denmark)

Henningsen, Birgitte; Gundersen, Peter Bukovica; Hautopp, Heidi

2017-01-01

This paper introduces to what we define as a collaborative video sketching process. This process links various sketching techniques with digital storytelling approaches and creative reflection processes in video productions. Traditionally, sketching has been used by designers across various...... findings: 1) They are based on a collaborative approach. 2) The sketches act as a mean to externalizing hypotheses and assumptions among the participants. Based on our analysis we present an overview of factors involved in collaborative video sketching and shows how the factors relate to steps, where...... the participants: shape, record, review and edit their work, leading the participants to new insights about their work....

The development and evaluation of mini-GEMs - short, focused, online e-learning videos in geriatric medicine.

Science.gov (United States)

Garside, Mark J; Fisher, James M; Blundell, Adrian G; Gordon, Adam L

2018-01-01

Mini Geriatric E-Learning Modules (Mini-GEMs) are short, focused, e-learning videos on geriatric medicine topics, hosted on YouTube, which are targeted at junior doctors working with older people. This study aimed to explore how these resources are accessed and used. The authors analyzed the viewing data from 22 videos published over the first 18 months of the Mini-GEM project. We conducted a focus group of U.K. junior doctors considering their experiences with Mini-GEMS. The Mini-GEMs were viewed 10,291 times over 18 months, equating to 38,435 minutes of total viewing time. The average viewing time for each video was 3.85 minutes. Learners valued the brevity and focused nature of the Mini-GEMs and reported that they watched them in a variety of settings to supplement clinical experiences and consolidate learning. Watching the videos led to an increase in self-reported confidence in managing older patients. Mini-GEMs can effectively disseminate clinical teaching material to a wide audience. The videos are valued by junior doctors due to their accessibility and ease of use.

Learning to Swim Using Video Modelling and Video Feedback within a Self-Management Program

Science.gov (United States)

Lao, So-An; Furlonger, Brett E.; Moore, Dennis W.; Busacca, Margherita

2016-01-01

Although many adults who cannot swim are primarily interested in learning by direct coaching there are options that have a focus on self-directed learning. As an alternative a self-management program combined with video modelling, video feedback and high quality and affordable video technology was used to assess its effectiveness to assisting an…

Video Quality Prediction over Wireless 4G

KAUST Repository

Lau, Chun Pong

2013-04-14

In this paper, we study the problem of video quality prediction over the wireless 4G network. Video transmission data is collected from a real 4G SCM testbed for investigating factors that affect video quality. After feature transformation and selection on video and network parameters, video quality is predicted by solving as regression problem. Experimental results show that the dominated factor on video quality is the channel attenuation and video quality can be well estimated by our models with small errors.

Video Quality Prediction over Wireless 4G

KAUST Repository

Lau, Chun Pong; Zhang, Xiangliang; Shihada, Basem

2013-01-01

In this paper, we study the problem of video quality prediction over the wireless 4G network. Video transmission data is collected from a real 4G SCM testbed for investigating factors that affect video quality. After feature transformation and selection on video and network parameters, video quality is predicted by solving as regression problem. Experimental results show that the dominated factor on video quality is the channel attenuation and video quality can be well estimated by our models with small errors.

The Video Generation.

Science.gov (United States)

Provenzo, Eugene F., Jr.

1992-01-01

Video games are neither neutral nor harmless but represent very specific social and symbolic constructs. Research on the social content of today's video games reveals that sex bias and gender stereotyping are widely evident throughout the Nintendo games. Violence and aggression also pervade the great majority of the games. (MLF)

Intelligent control for scalable video processing

NARCIS (Netherlands)

Wüst, C.C.

2006-01-01

In this thesis we study a problem related to cost-effective video processing in software by consumer electronics devices, such as digital TVs. Video processing is the task of transforming an input video signal into an output video signal, for example to improve the quality of the signal. This

Multimedia applications in nursing curriculum: the process of producing streaming videos for medication administration skills.

Science.gov (United States)

Sowan, Azizeh K

2014-07-01

Streaming videos (SVs) are commonly used multimedia applications in clinical health education. However, there are several negative aspects related to the production and delivery of SVs. Only a few published studies have included sufficient descriptions of the videos and the production process and design innovations. This paper describes the production of innovative SVs for medication administration skills for undergraduate nursing students at a public university in Jordan and focuses on the ethical and cultural issues in producing this type of learning resource. The curriculum development committee approved the modification of educational techniques for medication administration procedures to include SVs within an interactive web-based learning environment. The production process of the videos adhered to established principles for "protecting patients' rights when filming and recording" and included: preproduction, production and postproduction phases. Medication administration skills were videotaped in a skills laboratory where they are usually taught to students and also in a hospital setting with real patients. The lab videos included critical points and Do's and Don'ts and the hospital videos fostered real-world practices. The range of time of the videos was reasonable to eliminate technical difficulty in access. Eight SVs were produced that covered different types of the medication administration skills. The production of SVs required the collaborative efforts of experts in IT, multimedia, nursing and informatics educators, and nursing care providers. Results showed that the videos were well-perceived by students, and the instructors who taught the course. The process of producing the videos in this project can be used as a valuable framework for schools considering utilizing multimedia applications in teaching. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

The impact of complete denture making instructional videos on self-directed learning of clinical skills.

Science.gov (United States)

Kon, Haruka; Botelho, Michael George; Bridges, Susan; Leung, Katherine Chiu Man

2015-04-01

The aim of this research was to evaluate the effectiveness of a clinical instructional video with a structured worksheet for independent self-study in a complete denture program. 47 multilingual dental students completed a task by watching an instructional video with subtitles regarding clinical complete denture procedures. After completion, students evaluated their learning experience, and 11 students participated in focus group interviews to gain further insight. A mixed-methods approach to data collection and analysis provided descriptive statistical results and a grounded theory approach to coding identified key concepts and categories from the qualitative data. Over 70% of students had favorable opinions of the learning experience and indicated that the speed and length of the video were appropriate. Highly positive and conflicting negative comments regarding the use of subtitles showed both preferences for subtitles over audio and vice versa. The use of a video resource was considered valuable as the replay and review functions allowed better visualization of the procedures, which was considered a good recap tool for the clinical demonstration. It was also a better revision aid than textbooks. So, if the students were able to view these videos at will, they believed that videos supplemented their self-study. Despite the positive response, videos were not considered to replace live clinical demonstrations. While students preferred live demonstrations over the clinical videos they did express a realization of these as a supplemental learning material for self-study based on their ease of access, use for revision, and prior to clinical preparation. Copyright © 2015 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved.

Video personalization for usage environment

Science.gov (United States)

Tseng, Belle L.; Lin, Ching-Yung; Smith, John R.

2002-07-01

A video personalization and summarization system is designed and implemented incorporating usage environment to dynamically generate a personalized video summary. The personalization system adopts the three-tier server-middleware-client architecture in order to select, adapt, and deliver rich media content to the user. The server stores the content sources along with their corresponding MPEG-7 metadata descriptions. Our semantic metadata is provided through the use of the VideoAnnEx MPEG-7 Video Annotation Tool. When the user initiates a request for content, the client communicates the MPEG-21 usage environment description along with the user query to the middleware. The middleware is powered by the personalization engine and the content adaptation engine. Our personalization engine includes the VideoSue Summarization on Usage Environment engine that selects the optimal set of desired contents according to user preferences. Afterwards, the adaptation engine performs the required transformations and compositions of the selected contents for the specific usage environment using our VideoEd Editing and Composition Tool. Finally, two personalization and summarization systems are demonstrated for the IBM Websphere Portal Server and for the pervasive PDA devices.

The Quality of Open-Access Video-Based Orthopaedic Instructional Content for the Shoulder Physical Exam is Inconsistent.

Science.gov (United States)

Urch, Ekaterina; Taylor, Samuel A; Cody, Elizabeth; Fabricant, Peter D; Burket, Jayme C; O'Brien, Stephen J; Dines, David M; Dines, Joshua S

2016-10-01

The internet has an increasing role in both patient and physician education. While several recent studies critically appraised the quality and accuracy of web-based written information available to patients, no studies have evaluated such parameters for open-access video content designed for provider use. The primary goal of the study was to determine the accuracy of internet-based instructional videos featuring the shoulder physical examination. An assessment of quality and accuracy of said video content was performed using the basic shoulder examination as a surrogate for the "best-case scenario" due to its widely accepted components that are stable over time. Three search terms ("shoulder," "examination," and "shoulder exam") were entered into the four online video resources most commonly accessed by orthopaedic surgery residents (VuMedi, G9MD, Orthobullets, and YouTube). Videos were captured and independently reviewed by three orthopaedic surgeons. Quality and accuracy were assessed in accordance with previously published standards. Of the 39 video tutorials reviewed, 61% were rated as fair or poor. Specific maneuvers such as the Hawkins test, O'Brien sign, and Neer impingement test were accurately demonstrated in 50, 36, and 27% of videos, respectively. Inter-rater reliability was excellent (mean kappa 0.80, range 0.79-0.81). Our results suggest that information presented in open-access video tutorials featuring the physical examination of the shoulder is inconsistent. Trainee exposure to such potentially inaccurate information may have a significant impact on trainee education.

Video Golf

Science.gov (United States)

1995-01-01

George Nauck of ENCORE!!! invented and markets the Advanced Range Performance (ARPM) Video Golf System for measuring the result of a golf swing. After Nauck requested their assistance, Marshall Space Flight Center scientists suggested video and image processing/computing technology, and provided leads on commercial companies that dealt with the pertinent technologies. Nauck contracted with Applied Research Inc. to develop a prototype. The system employs an elevated camera, which sits behind the tee and follows the flight of the ball down range, catching the point of impact and subsequent roll. Instant replay of the video on a PC monitor at the tee allows measurement of the carry and roll. The unit measures distance and deviation from the target line, as well as distance from the target when one is selected. The information serves as an immediate basis for making adjustments or as a record of skill level progress for golfers.

The Energy Expenditure of an Activity-Promoting Video Game compared to Sedentary Video Games and TV Watching

Science.gov (United States)

Mitre, Naim; Foster, Randal C; Lanningham-Foster, Lorraine; Levine, James A.

2014-01-01

Background Screen time continues to be a major contributing factor to sedentariness in children. There have been more creative approaches to increase physical over the last few years. One approach has been through the use of video games. In the present study we investigated the effect of television watching and the use of activity-promoting video games on energy expenditure and movement in lean and obese children. Our primary hypothesis was that energy expenditure and movement decreases while watching television, in lean and obese children. Our secondary hypothesis was that energy expenditure and movement increases when playing the same game with an activity-promoting video game console compared to a sedentary video game console, in lean and obese children. Methods Eleven boys (10 ± 1 year) and eight girls (9 ± 1 year) ranging in BMI from 14–29 kg/m2 (eleven lean and eight overweight or obese) were recruited. Energy expenditure and physical activity were measured while participants were watching television, playing a video game on a traditional sedentary video game console, and while playing the same video game on an activity-promoting video game (Nintendo Wii) console. Results Energy expenditure was significantly greater than television watching and playing video games on a sedentary video game console when children played the video game on the activity-promoting console(125.3 ± 38.2 Kcal/hr vs. 79.7 ± 20.1 and 79.4 ±15.7, Pvideo games on a sedentary video game console is not different. Activity-promoting video games have shown to increase movement, and be an important tool to raise energy expenditure by 50% when compared to sedentary activities of daily living. PMID:22145458

Diavideos: a diabetes health video portal.

Science.gov (United States)

Sánchez-Bocanegra, C L; Rivero-Rodriguez, A; Fernández-Luque, L; Sevillano, J L

2013-01-01

Diavideos is a web platform that collects trustworthy diabetes health videos from YouTube and offers them in a easy way. YouTube is a big repository of health videos, but good content is sometimes mixed with misleading and harmful videos such as promoting anorexia [1]. Diavideos is a web portal that provides easy access to a repository of trustworthy diabetes videos. This poster describes Diavideos and explains the crawling method used to retrieve these videos from trusted channels.

Making Sense of Video Analytics: Lessons Learned from Clickstream Interactions, Attitudes, and Learning Outcome in a Video-Assisted Course

Directory of Open Access Journals (Sweden)

Michail N. Giannakos

2015-02-01

Full Text Available Online video lectures have been considered an instructional media for various pedagogic approaches, such as the flipped classroom and open online courses. In comparison to other instructional media, online video affords the opportunity for recording student clickstream patterns within a video lecture. Video analytics within lecture videos may provide insights into student learning performance and inform the improvement of video-assisted teaching tactics. Nevertheless, video analytics are not accessible to learning stakeholders, such as researchers and educators, mainly because online video platforms do not broadly share the interactions of the users with their systems. For this purpose, we have designed an open-access video analytics system for use in a video-assisted course. In this paper, we present a longitudinal study, which provides valuable insights through the lens of the collected video analytics. In particular, we found that there is a relationship between video navigation (repeated views and the level of cognition/thinking required for a specific video segment. Our results indicated that learning performance progress was slightly improved and stabilized after the third week of the video-assisted course. We also found that attitudes regarding easiness, usability, usefulness, and acceptance of this type of course remained at the same levels throughout the course. Finally, we triangulate analytics from diverse sources, discuss them, and provide the lessons learned for further development and refinement of video-assisted courses and practices.

Robust Watermarking of Video Streams

Directory of Open Access Journals (Sweden)

T. Polyák

2006-01-01

Full Text Available In the past few years there has been an explosion in the use of digital video data. Many people have personal computers at home, and with the help of the Internet users can easily share video files on their computer. This makes possible the unauthorized use of digital media, and without adequate protection systems the authors and distributors have no means to prevent it.Digital watermarking techniques can help these systems to be more effective by embedding secret data right into the video stream. This makes minor changes in the frames of the video, but these changes are almost imperceptible to the human visual system. The embedded information can involve copyright data, access control etc. A robust watermark is resistant to various distortions of the video, so it cannot be removed without affecting the quality of the host medium. In this paper I propose a video watermarking scheme that fulfills the requirements of a robust watermark. 

Video genre classification using multimodal features

Science.gov (United States)

Jin, Sung Ho; Bae, Tae Meon; Choo, Jin Ho; Ro, Yong Man

2003-12-01

We propose a video genre classification method using multimodal features. The proposed method is applied for the preprocessing of automatic video summarization or the retrieval and classification of broadcasting video contents. Through a statistical analysis of low-level and middle-level audio-visual features in video, the proposed method can achieve good performance in classifying several broadcasting genres such as cartoon, drama, music video, news, and sports. In this paper, we adopt MPEG-7 audio-visual descriptors as multimodal features of video contents and evaluate the performance of the classification by feeding the features into a decision tree-based classifier which is trained by CART. The experimental results show that the proposed method can recognize several broadcasting video genres with a high accuracy and the classification performance with multimodal features is superior to the one with unimodal features in the genre classification.

Telemetry and Communication IP Video Player

Science.gov (United States)

OFarrell, Zachary L.

2011-01-01

Aegis Video Player is the name of the video over IP system for the Telemetry and Communications group of the Launch Services Program. Aegis' purpose is to display video streamed over a network connection to be viewed during launches. To accomplish this task, a VLC ActiveX plug-in was used in C# to provide the basic capabilities of video streaming. The program was then customized to be used during launches. The VLC plug-in can be configured programmatically to display a single stream, but for this project multiple streams needed to be accessed. To accomplish this, an easy to use, informative menu system was added to the program to enable users to quickly switch between videos. Other features were added to make the player more useful, such as watching multiple videos and watching a video in full screen.

Video Game Accessibility: A Legal Approach

Directory of Open Access Journals (Sweden)

George Powers

2015-02-01

Full Text Available Video game accessibility may not seem of significance to some, and it may sound trivial to anyone who does not play video games. This assumption is false. With the digitalization of our culture, video games are an ever increasing part of our life. They contribute to peer to peer interactions, education, music and the arts. A video game can be created by hundreds of musicians and artists, and they can have production budgets that exceed modern blockbuster films. Inaccessible video games are analogous to movie theaters without closed captioning or accessible facilities. The movement to have accessible video games is small, unorganized and misdirected. Just like the other battles to make society accessible were accomplished through legislation and law, the battle for video game accessibility must be focused toward the law and not the market.

An Energy-Efficient and High-Quality Video Transmission Architecture in Wireless Video-Based Sensor Networks

Directory of Open Access Journals (Sweden)

Yasaman Samei

2008-08-01

Full Text Available Technological progress in the fields of Micro Electro-Mechanical Systems (MEMS and wireless communications and also the availability of CMOS cameras, microphones and small-scale array sensors, which may ubiquitously capture multimedia content from the field, have fostered the development of low-cost limited resources Wireless Video-based Sensor Networks (WVSN. With regards to the constraints of videobased sensor nodes and wireless sensor networks, a supporting video stream is not easy to implement with the present sensor network protocols. In this paper, a thorough architecture is presented for video transmission over WVSN called Energy-efficient and high-Quality Video transmission Architecture (EQV-Architecture. This architecture influences three layers of communication protocol stack and considers wireless video sensor nodes constraints like limited process and energy resources while video quality is preserved in the receiver side. Application, transport, and network layers are the layers in which the compression protocol, transport protocol, and routing protocol are proposed respectively, also a dropping scheme is presented in network layer. Simulation results over various environments with dissimilar conditions revealed the effectiveness of the architecture in improving the lifetime of the network as well as preserving the video quality.

An Energy-Efficient and High-Quality Video Transmission Architecture in Wireless Video-Based Sensor Networks.

Science.gov (United States)

Aghdasi, Hadi S; Abbaspour, Maghsoud; Moghadam, Mohsen Ebrahimi; Samei, Yasaman

2008-08-04

Technological progress in the fields of Micro Electro-Mechanical Systems (MEMS) and wireless communications and also the availability of CMOS cameras, microphones and small-scale array sensors, which may ubiquitously capture multimedia content from the field, have fostered the development of low-cost limited resources Wireless Video-based Sensor Networks (WVSN). With regards to the constraints of videobased sensor nodes and wireless sensor networks, a supporting video stream is not easy to implement with the present sensor network protocols. In this paper, a thorough architecture is presented for video transmission over WVSN called Energy-efficient and high-Quality Video transmission Architecture (EQV-Architecture). This architecture influences three layers of communication protocol stack and considers wireless video sensor nodes constraints like limited process and energy resources while video quality is preserved in the receiver side. Application, transport, and network layers are the layers in which the compression protocol, transport protocol, and routing protocol are proposed respectively, also a dropping scheme is presented in network layer. Simulation results over various environments with dissimilar conditions revealed the effectiveness of the architecture in improving the lifetime of the network as well as preserving the video quality.

Home Video Telemetry vs inpatient telemetry: A comparative study looking at video quality

Directory of Open Access Journals (Sweden)

Sutapa Biswas

Full Text Available Objective: To compare the quality of home video recording with inpatient telemetry (IPT to evaluate our current Home Video Telemetry (HVT practice. Method: To assess our HVT practice, a retrospective comparison of the video quality against IPT was conducted with the latter as the gold standard. A pilot study had been conducted in 2008 on 5 patients.Patients (n = 28 were included in each group over a period of one year.The data was collected from referral spreadsheets, King’s EPR and telemetry archive.Scoring of the events captured was by consensus using two scorers.The variables compared included: visibility of the body part of interest, visibility of eyes, time of event, illumination, contrast, sound quality and picture clarity when amplified to 200%.Statistical evaluation was carried out using Shapiro–Wilk and Chi-square tests. The P-value of ⩽0.05 was considered statistically significant. Results: Significant differences were demonstrated in lighting and contrast between the two groups (HVT performed better in both.Amplified picture quality was slightly better in the HVT group. Conclusion: Video quality of HVT is comparable to IPT, even surpassing IPT in certain aspects such as the level of illumination and contrast. Results were reconfirmed in a larger sample of patients with more variables. Significance: Despite the user and environmental variability in HVT, it looks promising and can be seriously considered as a preferable alternative for patients who may require investigation at locations remote from an EEG laboratory. Keywords: Home Video Telemetry, EEG, Home video monitoring, Video quality

Enhancement of hand hygiene compliance among health care workers from a hemodialysis unit using video-monitoring feedback.

Science.gov (United States)

Sánchez-Carrillo, Laura Arelí; Rodríguez-López, Juan Manuel; Galarza-Delgado, Dionisio Ángel; Baena-Trejo, Laura; Padilla-Orozco, Magaly; Mendoza-Flores, Lidia; Camacho-Ortiz, Adrián

2016-08-01

The importance of hand hygiene in the prevention of health care-associated infection is well known. Experience with hand hygiene compliance (HHC) evaluation in hemodialysis units is scarce. This study was a 3-phase, prospective longitudinal intervention study during a 5-month period in a 13-bed hemodialysis unit at a university hospital in Northern Mexico. The unit performs an average of 1,150 hemodialysis procedures per month. Compliance was evaluated by a direct observer and a video assisted observer. Feedback was given to health care workers in the form of educational sessions and confidential reports and video analysis of compliance and noncompliance. A total of 5,402 hand hygiene opportunities were registered; 5,201 during 7,820 minutes of video footage and 201 by direct observation during 1,180 minutes. Lower compliance during the baseline evaluation was observed by video monitoring compared with direct observation (P hand hygiene compliance. Video-assisted monitoring of hand hygiene is an excellent method for the evaluation of HHC in a hemodialysis unit; enhanced HHC can be achieved through a feedback program to the hemodialysis staff that includes video examples and confidential reports. Copyright © 2016 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

Una mirada a Donde ladrón no llega de Luis Hernáez

Directory of Open Access Journals (Sweden)

Nini Johanna Sánchez Ávila

2006-01-01

Full Text Available En 1996 aparece publicada la obra Donde ladrón no llega, del escritor paraguayo Luis Hernáez; este trabajo plantea una nueva lectura de la experiencia de las Reducciones Jesuitas en el Paraguay. Es, precisamente, esa forma de valoración en la recreación de la historia la que motiva este texto, ya que presenta una reconstrucción y una mirada crítica sobre un proyecto utópico adelantado en América. Tal propuesta es evaluada desde las voces de aquellos que –aún siendo protagonistas directos del evento social- no tuvieron una voz que se destacara en la delimitación de esta experiencia. Así, se abordará qué tipo de visión de la historia plantea el autor y cómo esta perspectiva se desarrolla en torno a una concepción específica de la propuesta de la utopía para América Latina.

Putting Your Camp on Video.

Science.gov (United States)

Peterson, Michael

1997-01-01

Creating a video to use in marketing camp involves selecting a format, writing the script, determining the video's length, obtaining release forms from campers who appear in the video, determining strategies for filming, choosing a narrator, and renting a studio and a mixing engineer (videotape editor). Includes distribution tips. (LP)

Evaluating Acquisition of Knowledge about Infertility Using a Whiteboard Video.

Science.gov (United States)

Thomson, Ashley A; Brown, Meghan; Zhang, Shannon; Stern, Emily; Hahn, Philip M; Reid, Robert L

2016-07-01

Myths about fertility are commonplace in society. Few studies have investigated educational approaches to bridge gaps in knowledge among consumers. We evaluated the effectiveness of an animated, 15-minute whiteboard video to effect change in knowledge about infertility. We recruited medical students in their first or second year of training for participation. The students completed the study before their formal lectures on infertility issues. Participants completed questionnaires assessing infertility knowledge immediately before and one week after watching the educational video. Before and after scores (maximum = 50 points) were compared using paired t tests. The study cohort included 101 medical students; 69% (70/101) were female and 31% (31/101) were male. Overall, students increased their score by 4.0/50 (95% CI 3.2 to 4.8, P Female students improved slightly more in their responses than did male students (mean improvement 4.7/50 vs. 2.5/50). A whiteboard video presentation on infertility resulted in short-term improvement in medical students' knowledge of basic reproductive biology, infertility risk factors, treatments, and common myths associated with infertility. Copyright © 2016 The Society of Obstetricians and Gynaecologists of Canada/La Société des obstétriciens et gynécologues du Canada. Published by Elsevier Inc. All rights reserved.

Video Recording With a GoPro in Hand and Upper Extremity Surgery.

Science.gov (United States)

Vara, Alexander D; Wu, John; Shin, Alexander Y; Sobol, Gregory; Wiater, Brett

2016-10-01

Video recordings of surgical procedures are an excellent tool for presentations, analyzing self-performance, illustrating publications, and educating surgeons and patients. Recording the surgeon's perspective with high-resolution video in the operating room or clinic has become readily available and advances in software improve the ease of editing these videos. A GoPro HERO 4 Silver or Black was mounted on a head strap and worn over the surgical scrub cap, above the loupes of the operating surgeon. Five live surgical cases were recorded with the camera. The videos were uploaded to a computer and subsequently edited with iMovie or the GoPro software. The optimal settings for both the Silver and Black editions, when operating room lights are used, were determined to be a narrow view, 1080p, 60 frames per second (fps), spot meter on, protune on with auto white balance, exposure compensation at -0.5, and without a polarizing lens. When the operating room lights were not used, it was determined that the standard settings for a GoPro camera were ideal for positioning and editing (4K, 15 frames per second, spot meter and protune off). The GoPro HERO 4 provides high-quality, the surgeon perspective, and a cost-effective video recording of upper extremity surgical procedures. Challenges include finding the optimal settings for each surgical procedure and the length of recording due to battery life limitations. Copyright © 2016 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.

The Video Interaction Guidance approach applied to teaching communication skills in dentistry.

Science.gov (United States)

Quinn, S; Herron, D; Menzies, R; Scott, L; Black, R; Zhou, Y; Waller, A; Humphris, G; Freeman, R

2016-05-01

To examine dentists' views of a novel video review technique to improve communication skills in complex clinical situations. Dentists (n = 3) participated in a video review known as Video Interaction Guidance to encourage more attuned interactions with their patients (n = 4). Part of this process is to identify where dentists and patients reacted positively and effectively. Each dentist was presented with short segments of video footage taken during an appointment with a patient with intellectual disabilities and communication difficulties. Having observed their interactions with patients, dentists were asked to reflect on their communication strategies with the assistance of a trained VIG specialist. Dentists reflected that their VIG session had been insightful and considered the review process as beneficial to communication skills training in dentistry. They believed that this technique could significantly improve the way dentists interact and communicate with patients. The VIG sessions increased their awareness of the communication strategies they use with their patients and were perceived as neither uncomfortable nor threatening. The VIG session was beneficial in this exploratory investigation because the dentists could identify when their interactions were most effective. Awareness of their non-verbal communication strategies and the need to adopt these behaviours frequently were identified as key benefits of this training approach. One dentist suggested that the video review method was supportive because it was undertaken by a behavioural scientist rather than a professional counterpart. Some evidence supports the VIG approach in this specialist area of communication skills and dental training. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Neogene Tiporco Volcanic Complex, San Luis, Argentina: An explosive event in a regional transpressive - local transtensive setting in the pampean flat slab

Science.gov (United States)

Ibañes, Oscar Damián; Sruoga, Patricia; Japas, María Silvia; Urbina, y. Nilda Esther

2017-07-01

The Neogene Tiporco Volcanic Complex (TVC) is located in the Sierras Pampeanas of San Luis, Argentina, at the southeast of the Pampean flat-slab segment. Based on the comprehensive study of lithofacies and structures, the reconstruction of the volcanic architecture has been carried out. The TVC has been modeled in three subsequent stages: 1) initial updoming, 2) ignimbritic eruptive activity and 3) lava dome emplacement. Interplay of magma injection and transtensional tectonic deformation has been invoked to reproduce TVC evolution.

No-reference pixel based video quality assessment for HEVC decoded video

DEFF Research Database (Denmark)

Huang, Xin; Søgaard, Jacob; Forchhammer, Søren

2017-01-01

the quantization step used in the Intra coding is estimated. We map the obtained HEVC features using an Elastic Net to predict subjective video quality scores, Mean Opinion Scores (MOS). The performance is verified on a dataset consisting of HEVC coded 4 K UHD (resolution equal to 3840 x 2160) video sequences...

The effects of an action video game on visual and affective information processing.

Science.gov (United States)

Bailey, Kira; West, Robert

2013-04-04

Playing action video games can have beneficial effects on visuospatial cognition and negative effects on social information processing. However, these two effects have not been demonstrated in the same individuals in a single study. The current study used event-related brain potentials (ERPs) to examine the effects of playing an action or non-action video game on the processing of emotion in facial expression. The data revealed that 10h of playing an action or non-action video game had differential effects on the ERPs relative to a no-contact control group. Playing an action game resulted in two effects: one that reflected an increase in the amplitude of the ERPs following training over the right frontal and posterior regions that was similar for angry, happy, and neutral faces; and one that reflected a reduction in the allocation of attention to happy faces. In contrast, playing a non-action game resulted in changes in slow wave activity over the central-parietal and frontal regions that were greater for targets (i.e., angry and happy faces) than for non-targets (i.e., neutral faces). These data demonstrate that the contrasting effects of action video games on visuospatial and emotion processing occur in the same individuals following the same level of gaming experience. This observation leads to the suggestion that caution should be exercised when using action video games to modify visual processing, as this experience could also have unintended effects on emotion processing. Published by Elsevier B.V.

[Efficacy of interventions with video games consoles in stroke patients: a systematic review].

Science.gov (United States)

Ortiz-Huerta, J H; Perez-de-Heredia-Torres, M; Guijo-Blanco, V; Santamaria-Vazquez, M

2018-01-16

In recent years video games and games consoles have been developed that are potentially useful in rehabilitation, which has led to studies conducted to evaluate the degree of efficacy of these treatments for people following a stroke. To analyse the literature available related to the effectiveness of applying video games consoles in the functional recovery of the upper extremities in subjects who have survived a stroke. A review of the literature was conducted in the CINHAL, Medline, PEDro, PsycArticles, PsycInfo, Science Direct, Scopus and Web of Science databases, using the query terms 'video game', 'stroke', 'hemiplegia', 'upper extremity' and 'hemiparesis'. After applying the eligibility criteria (clinical trials published between 2007 and 2017, whose participants were adults who had suffered a stroke with involvement of the upper extremity and who used video games), the scientific quality of the selected studies was rated by means of the PEDro scale. Eleven valid clinical trials were obtained for the systematic review. The studies that were selected, all of which were quantitative, presented different data and the inferential results indicated different levels of significance between control and experimental groups (82%) or between the different types of treatment (18%). The use of video games consoles is a useful complement for the conventional rehabilitation of the upper extremities of persons who have survived a stroke, since it increases rehabilitation time and enhances the recovery of motor functioning. Nevertheless, homogeneous intervention protocols need to be implemented in order to standardise the intervention.

What comes first? Publishing business or publishing studies?

Directory of Open Access Journals (Sweden)

Josipa Selthofer

2015-07-01

Full Text Available The aim of this paper is to analyze and compare publishing studies, their programmes at the undergraduate and graduate levels and scholars involved in the teaching of publishing courses at the top universities around the world and in Croatia. Since traditional publishing business is rapidly changing, new skills and new jobs are involved in it. The main research question is: Can modern publishing studies produce a modern publisher? Or, is it the other way around? The hypothesis of the paper is that scholars involved in the teaching of publishing courses at the top universities around the world have a background in publishing business. So, can they prepare their students for the future and can their students gain competencies they need to compete in a confusing world of digital authors and electronic books? The research methods used were content analysis and comparison. Research sample included 36 university publishing programmes at the undergraduate and graduate level worldwide (24 MA, 12 BA. The research sample was limited mainly to the English-speaking countries. In most non-English-speaking countries, it was difficult to analyse the programme curriculum in the native language because the programme and course description did not exit. In the data gathering phase, a customized web application was used for content analysis. The application has three main sections: a list of websites to evaluate, a visual representation of the uploaded website and a list of characteristics grouped by categories for quantifying data. About twenty years ago, publishing was not considered a separate scientific branch in Croatia. Publishing studies are therefore a new phenomenon to both scholars and publishers in Croatia. To create a new, ideal publishing course, can we simply copy global trends or is it better to create something of our own?

Semantic-based surveillance video retrieval.

Science.gov (United States)

Hu, Weiming; Xie, Dan; Fu, Zhouyu; Zeng, Wenrong; Maybank, Steve

2007-04-01

Visual surveillance produces large amounts of video data. Effective indexing and retrieval from surveillance video databases are very important. Although there are many ways to represent the content of video clips in current video retrieval algorithms, there still exists a semantic gap between users and retrieval systems. Visual surveillance systems supply a platform for investigating semantic-based video retrieval. In this paper, a semantic-based video retrieval framework for visual surveillance is proposed. A cluster-based tracking algorithm is developed to acquire motion trajectories. The trajectories are then clustered hierarchically using the spatial and temporal information, to learn activity models. A hierarchical structure of semantic indexing and retrieval of object activities, where each individual activity automatically inherits all the semantic descriptions of the activity model to which it belongs, is proposed for accessing video clips and individual objects at the semantic level. The proposed retrieval framework supports various queries including queries by keywords, multiple object queries, and queries by sketch. For multiple object queries, succession and simultaneity restrictions, together with depth and breadth first orders, are considered. For sketch-based queries, a method for matching trajectories drawn by users to spatial trajectories is proposed. The effectiveness and efficiency of our framework are tested in a crowded traffic scene.

CERN Video News on line

CERN Multimedia

2003-01-01

The latest CERN video news is on line. In this issue : an interview with the Director General and reports on the new home for the DELPHI barrel and the CERN firemen's spectacular training programme. There's also a vintage video news clip from 1954. See: www.cern.ch/video or Bulletin web page

Luis G. Urbina, la definición de un género literario

Directory of Open Access Journals (Sweden)

Ernesto Emiliano Romero

2016-01-01

Full Text Available El artículo es una aproximación crítica a las crónicas del autor mexicano Luis G. Urbina; investigación que encontró su origen en la importancia de la crónica modernista como espacio creativo y reflexivo cuyas características y alcances aún hoy generan un sinnúmero de trabajos críticos. Tanto José Martí como Manuel Gutiérrez Nájera y otros de los autores emblemáticos del modernismo, han sido escrutados y valorados a lo largo de estos años. Sin embargo, Urbina ha permanecido relegado a las historias de la literatura y a las bibliotecas, lo cual sugiere un casi nulo conocimiento de su obra. En este ensayo se analizan algunos de los textos incluidos en su libro Cuentos vividos y crónicas soñadas, publicado en 1915, para contribuir a la revalorización y difusión de su obra a 150 años de su nacimiento.

The eolic fluvial succession and paleoclimatic evolution of Rio Conlara, San Luis, Argentina

International Nuclear Information System (INIS)

Chiesa, J.

2004-01-01

The outcroping deposits in the ravines of the Conlara River are dominated by silt with subordinated and variable percentages of sand and clays. In the section that is described, at the south of the town of Santa Rosa del Conlara, these materials have been deposited responding generally climatic changing conditions. The base of the profile, assigned to the late Pleistocene, contains extint fauna of the Lujanense and a datation of 8950 B.P., and it is represented by fluvial sandy gravels. The overlaying succession, assigned to the Holocene, shows an intercalation of horizons generated by eolic-loessic deposits and deposits with development of pedogenetic processes. The whole succession shows characteristic of corresponding to a vegetated plain, next to the river flood plain. The discriminated horizons are the result of a detailed sampling and the representation of range parameters of the same ones, in function of the depth, this last one oscillates between 6 and 8 meters. The quaternary deposits of the region, support indistinctly as on the crystalline basement of San Luis range, as on the calcretes assigned to the Neogene [es

[Is video game addiction a reality ?

Science.gov (United States)

Thorens, Gabriel; Achab, Sophia; Rothen, Stephane; Khazaal, Yasser; Zullino, Daniele

2016-09-21

Video games are widely practiced. Questions about their potential health risks arise, including the risk of addiction. If there is at present no official diagnosis of video games addiction, the DSM-5 proposes temporary criteria based on pathological gambling. Video game addiction affects a minority of at risk individuals. The proposed treatments are essentially psychotherapeutic. Video games practices can be non problematic and they may also have potential beneficial effects on individuals. It is therefore recommended, when assessing video games practices, to take into account the positive and negative impacts of their use.

Marxismo y Moral. Reflexiones a partir de El marxismo como moral de José Luis López Aranguren

Directory of Open Access Journals (Sweden)

Muñoz, Jacobo

2014-06-01

Full Text Available Starting from a critical reading of El marxismo como moral, classical work of José Luis López Aranguren, this article deals with the problem of the normative and moral foundations of marxism. In order to go in depth into the ethical dimension of Karl Marx's and the marxist tradition's thought, the text proposes several thematic lines of analysis with the aim of liberating, at the same time, the intelectual and political project of Marx from the various clichés associated to its traditional reception. The ethical field will appear as a space of mediation between knowledge and reality, disclosing itself as fundamental to marxism from a praxeological point of view. At the end of the article there is a critical dialogue with different ethical positions in the frame of contemporary marxism.A partir de una lectura crítica de El marxismo como moral, obra clásica de José Luis López Aranguren, éste artículo trata de interrogarse acerca de los fundamentos normativos y morales del marxismo. A lo largo del texto se proponen diversas líneas temáticas para profundizar en la dimensión ética del pensamiento de Karl Marx y la tradición marxista, tratando de liberar, al mismo tiempo, su proyecto intelectual y político de diversos tópicos vinculados a su recepción tradicional. El ámbito ético aparecerá como espacio de mediación entre el conocimiento y la realidad, revelándose como fundamental para el marxismo desde un punto de vista praxeológico. Al final del artículo se dialoga críticamente con algunas posiciones éticas en el marco del marxismo contemporáneo.

360-degree video and X-ray modeling of the Galactic center's inner parsec

Science.gov (United States)

Russell, Christopher Michael Post; Wang, Daniel; Cuadra, Jorge

2017-08-01

360-degree videos, which render an image over all 4pi steradian, provide a unique and immersive way to visualize astrophysical simulations. Video sharing sites such as YouTube allow these videos to be shared with the masses; they can be viewed in their 360° nature on computer screens, with smartphones, or, best of all, in virtual-reality (VR) goggles. We present the first such 360° video of an astrophysical simulation: a hydrodynamics calculation of the Wolf-Rayet stars and their ejected winds in the inner parsec of the Galactic center. Viewed from the perspective of the super-massive black hole (SMBH), the most striking aspect of the video, which renders column density, is the inspiraling and stretching of clumps of WR-wind material as they makes their way towards the SMBH. We will brielfy describe how to make 360° videos and how to publish them online in their desired 360° format. Additionally we discuss computing the thermal X-ray emission from a suite of Galactic-center hydrodynamic simulations that have various SMBH feedback mechanisms, which are compared to Chandra X-ray Visionary Program observations of the region. Over a 2-5” ring centered on Sgr A*, the spectral shape is well matched, indicating that the WR winds are the dominant source of the thermal X-ray emission. Furthermore, the X-ray flux depends on the SMBH feedback due to the feedback's ability to clear out material from the central parsec. A moderate outburst is necessary to explain the current thermal X-ray flux, even though the outburst ended ˜100 yr ago.

Austin Community College Video Game Development Certificate

Science.gov (United States)

McGoldrick, Robert

2008-01-01

The Video Game Development program is designed and developed by leaders in the Austin video game development industry, under the direction of the ACC Video Game Advisory Board. Courses are taught by industry video game developers for those who want to become video game developers. The program offers a comprehensive approach towards learning what's…

Video astronomy on the go using video cameras with small telescopes

CERN Document Server

Ashley, Joseph

2017-01-01

Author Joseph Ashley explains video astronomy's many benefits in this comprehensive reference guide for amateurs. Video astronomy offers a wonderful way to see objects in far greater detail than is possible through an eyepiece, and the ability to use the modern, entry-level video camera to image deep space objects is a wonderful development for urban astronomers in particular, as it helps sidestep the issue of light pollution. The author addresses both the positive attributes of these cameras for deep space imaging as well as the limitations, such as amp glow. The equipment needed for imaging as well as how it is configured is identified with hook-up diagrams and photographs. Imaging techniques are discussed together with image processing (stacking and image enhancement). Video astronomy has evolved to offer great results and great ease of use, and both novices and more experienced amateurs can use this book to find the set-up that works best for them. Flexible and portable, they open up a whole new way...

Video-conferencing Telehealth Linkage attempts to Schools to Facilitate Mental Health Consultation.

Science.gov (United States)

McLennan, John D

2018-04-01

Telehealth to schools may be a strategic approach to expand child mental health service delivery, however, there are only a few published examples. This report describes video-conferencing telehealth linkage attempts to schools to facilitate mental health consultation. A series of synchronous video-conferencing linkage strategies were attempted to connect a mental health consultation service to multiple schools in a Canadian setting. Consultation to support the implementation of the Daily Report Card, for students with attentional and behavioural problems, was the core content of this pilot linkage attempt. Synchronous video conference consultations were successfully delivered to six elementary schools across three school districts. Two of three linkage strategies were functional. One used existing health centre-based telehealth units to connect to school-based dedicated tablets with a video collaboration app and reliance on existing school Wi-Fi. A second used existing laptops in both the health and school system linked through a communication platform. A third connection, using 3G/4G hotspots to obviate the need to access school Wi-Fi, was deemed too expensive in this setting. The potential to use existing computer hardware to connect mental health providers and schools could facilitate scale-up. However, it is unknown whether mental health systems and school sectors will invest in such linkages and reorganize core mental health services to be delivered in this way.