993 resultados para TV Digital


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“Magic for a Pixeloscope” is a one hour show conceived to berepresented in a theater scenario that merges mixed and augmented reality (MR/AR) and full-body interaction with classical magic to create new tricks. The show was conceived by an interdisciplinary team composed by a magician, twointeraction designers, a theater director and a stage designer. Themagician uses custom based hardware and software to createnew illusions which are a starting point to explore new languagefor magical expression. In this paper we introduce a conceptualframework used to inform the design of different tricks; weexplore the design and production of some tricks included in theshow and we describe the feedback received on the world premiere and some of the conclusions obtained.

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This research report concerns about the post-doctoral activities, conducted betweenSeptember 2010 and March 2011 at the University Pompeu Fabra, Barcelona. It comes to identify the consequences of the convergence phenomenon on photojournalism.Thus, in a more general approach, the effort is to to recovery the structural elements of the convergence concept in journalism. It aims to map, as well, the current debates about the repositioning of photographic practices linked to the news produced in a widespread adoption of digital devices in contemporary workflow. It is also specified,the analysis of photographic collectives as a result of the convergence frameworkapplied to photojournalism; the debate on ways of funding; alternatives facing thealleged crisis of press photography and, finally, proposes to create qualifying stages ofdevelopment of photojournalism in the digital age as well as the proposition of hypotheses concerning the structure of the productive routines. In addition, we present three cases to be analyzed in order to explore and verify the occurrence ofcharacteristics that may identify the object of research in the state of practice. Finally,we work in a series of conclusions, revisiting the main hypotheses. With this strategy, ispossible to define an sequence of analysis capable of addressing the characteristics present in the studied cases and other ones in future, thus, be able to affirm this stage as a step, in the continuous historical course of photojournalism.

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O objetivo do estudo foi caracterizar o perfil de licenciandos de enfermagem, identificar a fluência digital, o conhecimento, a habilidade e o interesse no uso de ambientes virtuais de aprendizagem. Trata-se de uma pesquisa quantitativa, exploratório-descritiva realizada com 51 licenciandos de enfermagem por meio de questionário. Dos participantes do estudo 51 (100%) afirmam ter conhecimento em informática, sendo que 26 (49%) indicam um nível intermediário; 47 (92%) fazem uso diário da Internet; 51 (100%) navegam em redes sociais e possuem e-mail; 51(100%) utilizam MSN e 32 (62,7%) Skype; 41 (82%) acessam Chats, 33 (64,7%) Fóruns de discussão e 22 (43%) Blogs; 33 (64,7%) utilizam frequentemente o Moodle e 26 (51%) o COL; e a grande maioria (45- 88,2%) relatou interesse no uso de ambientes virtuais de aprendizagem. Os alunos foram considerados fluentes digitais e apresentaram conhecimento, habilidade e expressivo interesse no uso de ambientes virtuais de aprendizagem em sua formação acadêmica.

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El presente trabajo de investigación propone un proyecto de investigación centrado en los pre-adolescentes para estudiar, a través deautobiografías digitales (digital storytelling, DST) producidas por ellos, laspracticas cultural-medial y las representaciones que ellos han construido sobre los medios, en relación con los contextos de uso significativos, como el hogar, la escuela o su grupo de par. Los medios forman parte de las actividades cotidianas de los niños quien los emplean en prácticas de socialización, aprendizaje, juego y de construcción de la identidad y del conocimiento. Los digital storytelling,insertados en el contexto escolar, serán empleados como metodología didácticapara la adquisición de competencias tecnológicas y como instrumento de lainvestigación. Los DST, como practica cultural de los chicos, constituirán nuestrocampo para la observación de las modalidades de uso de los medios por parte delos jóvenes y sus capacidad de recombinar lenguajes y construir contenidos. LosDST proporcionaran, además, la posibilidad de acceder al universo simbólicoinfantil para comprender el significado que las tecnologías tienen en sus cotidianidad

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El present projecte d’investigació és el treball de recerca del Doctorat en Comunicació Pública (bienni 2007-2009) i es proposa de desenvolupar-lo com a tesi doctoral. Vol estudiar les especificitats de la narrativa audiovisual informativa a Internet de tres mitjans digitals decomunicació catalans. Per a fer-ho es proposa una metodologia qualitativa dividida en dos blocs: el primer, a partir de l'observació, entrevistes en profunditat i enquestes, vol investigar les novesrutines de producció audiovisual en aquests tres mitjans, condicionades per un nou entorn digital; el segon, a partir de la narratologia, vol analitzar els efectes d'aquestes rutines i d'aquest nou entorn enel producte audiovisual resultant

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El volumen de información a la que un usuario tiene acceso en Internet esenorme. La representación de la misma ha ido evolucionando a lo largo del tiempo a lavez que se han establecido reglas, recomendaciones y directrices que conforman toda una ingeniería de diseño de interfaces con el propósito de mejorar la representación e interacción entre el usuario y el ordenador. Aún así, hay que ir evolucionando en la manera de tratar esta representación de la información ya que Internet es un espacio donde afloran, día tras día, nuevas tecnologías y servicios.De hecho, en este proyecto trataremos de mejorar la representación de lainformación mediante unos objetos que llamaremos surrogates o sustitutos. Como sunombre indica, estos sustitutos serán la representación de los elementos a reemplazar y cuya función podríamos calificar como de “puerta de enlace”. Dichos objetos estaránformados por elementos propios de la información a la que representan con el objetivo de que el usuario identifique de una manera más rápida y sencilla esta información.En definitiva, desarrollaremos unos surrogates que puedan ser usados endiferentes interfaces independientemente de la tecnología que se haya empleado para sudesarrollo y dotándolos de una serie de características y métodos con el fin de mejorar la interacción entre el usuario y la información.

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Product placement has become more and more common in Finnish television programmes lately. Product placement, as with the whole of the television industry, is strictly regulated and monitored by law. Surreptitious advertising, sponsorship, cooperative partnerships and product placement are often confused with each other. Partially these activities are interpenetrative. Present legislation doesn't recognise product placement, therefore it doesn't have any specific position in law, thus causing problems. Product placement in domestic tv-programmes is still relatively modest. More extensive activity is perceivable at the movies where the restrictions are considerably more liberal. In the United States, product placement is a part of a production's budget. Pressure to increase financing has grouwn in both Finland and Europe. There has been considerable preparation in advance of a new television directive in the European Union which would allow more liberal advertising and product placement as a part of financing tv-programmes. The proposal for a new directive is currently only on its first round so product placement probably won't become better defined in law in the near future. Finnish television producers were interviewed as part of the research for this thesis, in order to clarify product placement position and usage in domestic televion programmes. Surreptitious advertising, sponsorship, different kinds of cooperative partnerships and the need for guidance were also discussed in the course of the themed interviews. Even though product placement does not currently play a significant part in the financing of a production, there are certainly pressures in that direktion. In the field of television, the legal boundaries of product placement are presently being explored in order to assess its position as a part of budgeting and covering expenses.

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The objective of my thesis was to find out how mobile TV service will influence TV consumption behaviour of the Finns. In particular the study focuses on the consumption behaviour of a well educated urban people. For my thesis, I provided a detailed analysis of the study results of a large scale questionnaire research FinPilot from the year 2005 based on an assignment of Nokia Ltd. In order to deepen the study results, I focused on the above mentioned group of young people with good education. The goal of the FinPilot research was to give answers to the following questions: what kind of programs, in what kind of circumstances, and for which reasons are they watched when using the mobile television service. The results of the research consisted mainly of data like figures, graphics etc. The data was explaned from the helicopter perspective, for it gave additional value to the research and consequently to my own thesis. My study offered complementary, unique information about their needs as it was based on questionnaires supplemented by individual interviews of the group members, their free comments as well as group discussions. The study results proved that mobile TV service did not increase the total TV consumption time. The time used for watching the mobile TV was significantly shorter than the time for watching the traditional TV. According to my study, the young urban people with good education are more interested to adapt the mobile TV service than the average Finns. Being eager to utilize the added value offered by the mobile TVs they are a potential target group in launching and marketing processes. On the basis of the outcome of the thesis, the future of mobile TV service seems very promising. The content and the pricing, however, have to match the user's needs and expectations. All the study results prove that there exists a social order for mobile TV service.

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Digital holographic microscopy (DHM) is a noninvasive optical imaging technique that provides quantitative phase images of living cells. In a recent study, we showed that the quantitative monitoring of the phase signal by DHM was a simple label-free method to study the effects of glutamate on neuronal optical responses (Pavillon et al., 2010). Here, we refine these observations and show that glutamate produces the following three distinct optical responses in mouse primary cortical neurons in culture, predominantly mediated by NMDA receptors: biphasic, reversible decrease (RD) and irreversible decrease (ID) responses. The shape and amplitude of the optical signal were not associated with a particular cellular phenotype but reflected the physiopathological status of neurons linked to the degree of NMDA activity. Thus, the biphasic, RD, and ID responses indicated, respectively, a low-level, a high-level, and an "excitotoxic" level of NMDA activation. Moreover, furosemide and bumetanide, two inhibitors of sodium-coupled and/or potassium-coupled chloride movement strongly modified the phase shift, suggesting an involvement of two neuronal cotransporters, NKCC1 (Na-K-Cl) and KCC2 (K-Cl) in the genesis of the optical signal. This observation is of particular interest since it shows that DHM is the first imaging technique able to monitor dynamically and in situ the activity of these cotransporters during physiological and/or pathological neuronal conditions.

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Economia Digital: Una sortida per a múltiples sistemes comercials, és un treball de recerca que tracta sobre el comerç electrònic en tots els seus aspectes, partint d’un anàlisi teòric que estableix les bases d’aquest sistema comercial; seguit d’un estudi de dos casos concrets d’empreses que han introduït Internet en la seva activitat. Per una banda, una d’aquestes empreses, Destil·leries Julián Segarra, s’ha servit de les noves tecnologies, amb un ús publicitari, per tal de donar-se a conèixer però sense oferir la possibilitat de venda online. D’altra banda, Surfdevils S.L. no només utilitza els recursos que ofereix la xarxa de manera informativa, sinó que va més enllà i permet adquirir els seus productes mitjançant el seu espai web. A més es realitza un breu estudi sobre els hàbits de compra per Internet, mitjançant una enquesta efectuada a una mostra de la població.Tot aquest estudi, serveix per arribar a la conclusió que introduir el comerç electrònic dins del seu funcionament és rentable per a les empreses i beneficiós pels consumidors, ja que els ofereix la possibilitat d’adquirir els productes en un mercat més ampli, transparent i competitiu.

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Opinnäytetyön tavoitteena oli selvittää, millaisia ovat uusien tuotantotapojen haasteet uudenlaiselle sisällöntuotannolle ja uutisympäristölle. Monimediaisen tuotannon esimerkkitapauksiksi rajattiin mobiili-TV ja YLE Uutiset. Mobiili-TV:n tutkimusta varten kootulle testiryhmälle tehtiin subjektiivisen laadun kokemista mittaava MOS-testi (Mean Opinion Score), jossa selvitettiin testattavien mielipiteitä matkapuhelimen kautta esitettyjen videotiedostojen kuvan- ja äänenlaadusta sekä eri pakkaustapojen käyttökelpoisuudesta mobiili-TV:ssä. Testillä haettiin esille myös sisällöllisesti sopiva ja käyttökelpoinen suhde, jolla mobiili-TV:n lähetteen kokonaiskaistanleveys olisi kuvan ja äänen välillä hyvä jakaa. Lisäksi samalla testiryhmällä tutkittiin, mitä mobiili-TV:stä yleensä tiedetään, millaisena palvelu koetaan ja millaista sisältöä siihen kaivattaisiin. Tämän kuluttajatutkimuksen mukaan mobiili-TV:hen soveltuvimmiksi sisältötyypeiksi koettiin uutiset, ajankohtaisohjelmat ja osin urheilu. Mobiili-TV:ssä ei ole vielä paljoakaan tarjontaa, joten väline on suurelle yleisölle oikeastaan täysin tuntematon. Testiryhmän mielestä se voisi kuitenkin joissakin tilanteissa korvata tai täydentää perinteisen TV-vastaanottimen käyttöä. Mobiili-TV:n sisältötyyppitutkimuksen lisäksi tutkittiin YLE Uutisten sisällöntuotantomenettelyjä. Teemahaastattelujen avulla selvitettiin, millainen on toimituksen tuotantotapa, miten ylivälineellinen sisällöntuotanto siellä mahdollisesti toteutuu, millainen on sen mahdollinen mobiili-TV-palvelu ja miten siellä suhtaudutaan niin sanottuun kansalaisjournalismiin. Haastattelujen johtopäätöksinä YLE Uutisissa ei vielä toteudu aito ylivälineellinen tuotanto, mutta merkkejä muutoksesta on näkyvissä. Kansalaisjournalismin nousu on havaittu, mutta käytännön vastauksia siihen ei vielä ole. YLE Uutisten nykyinen 3G-matkapuhelimillakin käytettävä internet-TV-palvelu on toteutettu suoratoistopalveluna (engl. streaming), eikä vielä DVB-H-verkkotekniikkaa hyödyntäen, joten se on teknisesti melko matalalaatuista. Esimerkkinä toteutuneesta ylivälineellisestä tuotannosta on opinnäytetyössä esitelty Kansainvälisen Jean Sibelius -viulukilpailun monimediainen uutispalvelu. Lopuksi esitetään tutkimuksen pohjalta löytyneitä mahdollisuuksia, jotka tukevat YLE Uutisten tuotannon järjestämistä ylivälineelliseksi ja kansalaisten sisällöntuotantoa. aktivoivaksi.

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Opinnäytetyön kirjallinen osa pohtii dokumentaarisen elokuvan ja tosi-TV:n eroja ja yhtäläisyyksiä. Kysymys on rajattu koskemaan näiden kahden lajityypin keinoja autenttisen vaikutelman luomiseksi muodon ja teknisen toteutuksen tasolla. Dokumentaarisella elokuvalla ja tosi-TV:llä on osittain samanlaiset lähtökohdat, mutta niiden keinoissa on enemmän eroja kuin yhtäläisyyksiä. Keskityn tutkimuksessani erityisesti tosi-TV:n muotoon. Lähtökohtana pohdinnalle olen käyttänyt Veijo Hietalan ja Ari Honka-Hallilan esittämää teoriaa televisio-ohjelman autenttisuuden vaikutelmaa lisäävistä indekseistä eli "mittareista". Ohjelman autenttisuutta voidaan Hietalan ja Honka-Hallilan mukaan mitata visuaalisilla, temporaalisilla ja interaktiivisilla indekseillä. Käyn läpi tosi-TV:n kuvan, äänen, rakenteen, leikkauksen ja käsikirjoituksen keinoja autenttisuuden vaikutelman tehostamisessa ja vertaan niitä dokumentaarisen elokuvan vastaaviin keinoihin. Käsittelen myös joitain vain televisiolle ominaisia keinoja luoda autenttisuuden vaikutelmaa, kuten suoran lähetyksen illuusio ja vuorovaikutus katsojan kanssa. Pohdin myös "toisen sukupolven" tosi-TV:lle ominaista tapaa tuoda "tavallisen" ihmisen tunteet televisiodraaman keskiöön. Vaikka tosi-TV:llä ja dokumentaarisella elokuvalla on joitain yhtymäkohtia, ovat ne lajityyppeinä etääntyneet kauas toisistaan. Tämä ei kuitenkaan välttämättä tarkoita sitä, että niiden sisältöjen erot olisivat tarkkarajaiset. Myöskään ei ole aina yksiselitteisen selvää, onko jokin tietty ohjelma dokumentti vai tosi-TV-ohjelma. Opinnäytetyöni teososan muodostavat Laulua kauniiden lasten saarelta -nimisen teatterikappaleen videoprojisoinnit. Teatterikappaleessa tehtäväni oli ohjata tosi-TV:tä jäljittelevä kuvaustilanne koko näytelmän ajaksi. Teososan tekeminen on ollut lähtökohtana kirjallisen osan pohdinnoille.

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We present dual-wavelength Digital Holographic Microscopy (DHM) measurements on a certified 8.9 nm high Chromium thin step sample and demonstrate sub-nanometer axial accuracy. We introduce a modified DHM Reference Calibrated Hologram (RCH) reconstruction algorithm taking into account amplitude contributions. By combining this with a temporal averaging procedure and a specific dual-wavelength DHM arrangement, it is shown that specimen topography can be measured with an accuracy, defined as the axial standard deviation, reduced to at least 0.9 nm. Indeed, it is reported that averaging each of the two wavefronts recorded with real-time dual-wavelength DHM can provide up to 30% spatial noise reduction for the given configuration, thanks to their non-correlated nature. ©2008 COPYRIGHT SPIE