1,166 research outputs found

    The effects of varying levels of object change on explicit and implicit memory for brand messages within advergames

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    The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.Title from title screen of research.pdf file (viewed on October 23, 2007)Includes bibliographical references.Thesis (M.A.) University of Missouri-Columbia 2007.Dissertations, Academic -- University of Missouri--Columbia -- Journalism.This study examined the effects of varying levels of object change in advergames on implicit and explicit memory for the brand sponsoring the game. For the purposes of this thesis, object change was defined as an object entering the screen of an advergame to which a player must react to with a motor response using a mouse or keyboard. This study utilized a 2 (level of object change) x 5 (advergame) repeatedmeasures experiment. Explicit memory was measured using a speeded recognition test. Implicit memory was measured via a word-fill task assignment. A signal detection analysis of explicit memory data revealed that participants were less able to recognize brands they had seen in high object change games versus brands in low object change games. There were no significant differences in implicit memory for high object change game brands and low object change game brands

    Torsion and the Electromagnetic Field

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    In the framework of the teleparallel equivalent of general relativity, we study the dynamics of a gravitationally coupled electromagnetic field. It is shown that, besides being able to be minimally coupled to torsion, the electromagnetic field, through its energy-momentum tensor, is also able to produce torsion. Furthermore, it is shown that this kind of coupling of the electromagnetic field with torsion preserves the local gauge invariance of Maxwell's theory

    Discovery of two new phases of zirconium tetrakis(8-hydroxyquinolinolate): synthesis, crystal structure and their electron transporting characteristics in organic light emitting diodes (OLEDs)

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    Two new phases of zirconium tetrakis(8-hydroxyquinolinolate) (Zrq4) have been synthesised and characterised by single crystal X-ray diffraction. Their electrical, electronic, optical and thermal properties have been studied. Their electron transporting characteristics have been investigated in organic light emitting devices where the two phases show remarkable differences in performance. One of the forms (designated a-Zrq4) gives significantly lower operating voltage, higher efficiencies and longer lifetime than the other (designated b-Zrq4) in organic light emitting devices.EPSR

    47.4: Blue Phosphorescent Organic Light Emitting Device Stability Analysis

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    A model based on defect generation by exciton‐polaron annihilation interactions between the emitter and host molecules, in a blue phosphorescent OLED, is shown to fit well with experimental data. A blue PHOLED with (0.15, 0.25) chromaticity is shown to have a half‐life, from 1,000 nits, of 690 hrs.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/92134/1/1.3069766.pd

    11.1: Invited Paper : Advances in Blue Phosphorescent Organic Light‐Emitting Devices

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    This paper discusses the latest developments towards a commercial blue phosphorescent organic light emitting device (PHOLED™) technology. Progress towards achieving a high efficiency, long‐lived saturated blue PHOLED is discussed. First, a high efficiency (20% EQE, 45 cd/A), light blue (0.17, 0.39) PHOLED is presented. Next, long‐lived blue PHOLEDs having chromaticity co‐ordinates (0.17, 0.38) and (0.16, 0.29) are estimated to degrade to half their initial luminance of 200cd/m 2 after >100,000 hrs and 17,500 hrs, respectively. Finally, results from PHOLEDs designed to increase blue color saturation and lifetime are presented.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/92011/1/1.2433213.pd

    Dinâmicas de gestão nas PME - O sector da restauração e bebidas

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    Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de InformaçãoO sector da Restauração e Bebidas assume hoje uma importância relevante no contexto da oferta turística nacional, representando 83% das empresas, 79% do Emprego e 76% do volume de negócios gerado pela actividade turística em Portugal. Trata-se de uma realidade económica que gera mais de 187.000 postos de trabalho directos, repartidos por quase 61.000 empresas que facturam 6.400 milhões de euros (INE, 2004). Algumas das lacunas deste sector residem na falta de informação e na inexistência de um cadastro dos estabelecimentos de Restauração e Bebidas. Devido a esta situação, a informação produzida sobre o sector está subavaliada e é deficitária. Assim, propõe-se a elaboração de um projecto-piloto de registo dos estabelecimentos de Restauração e Bebidas numa área geográfica delimitada. Este estudo tem por base duas fontes principais de informação; uma série temporal de dados estatísticos, publicados pelo INE e pelo Eurostat, respeitantes às CAE’s 553 (restaurantes), 554 (estabelecimentos de Bebidas) e 555 (catering), para o total nacional e para cada uma das sete regiões que constituem a NUTS II, (especificando-se para a região do Alentejo), analisados a partir das variáveis “Número de Empresas”, “Pessoal ao Serviço” e “Volume de Negócios”; e um inquérito realizado aos estabelecimentos de Restauração e Bebidas da cidade de Évora
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