551 resultados para Stereophonic receivers
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O jornalismo é um dos principais meios de oferta de temas para a discussão e formação da opinião pública, porém depende de um sistema técnico para ser transmitido. Durante mais de cem anos as informações produzidas pela imprensa foram emitidas, armazenadas, transmitidas e recebidas pelos chamados veículos de comunicação de massa que utilizam a rede centralizada cujas características estão na escassez material, produção em série e massificação. Esse sistema separa no tempo e no espaço emissores e receptores criando uma relação desigual de força em que as grandes empresas controlaram o fluxo informativo, definindo quais fatos seriam veiculados como notícia. Em 1995, a internet cuja informação circula sob a tecnologia da rede distribuída, foi apropriada pela sociedade, alterando a forma de produção, armazenamento e transmissão de informação. A tecnologia despertou a esperança de que esta ferramenta poderia proporcionar uma comunicação mais dialógica e democrática. Mas aos poucos pode-se perceber novas empresas se apropriando da tecnologia da rede distribuída sob a qual circula a internet, gerando um novo controle do fluxo informativo. Realizou-se nessa pesquisa um levantamento bibliográfico para estabelecer uma reflexão crítica dos diferentes intermediários entre fato e a notícia tanto da rede centralizada como na rede distribuída, objetivando despertar uma discussão que possa oferecer novas ideias para políticas, bem como alternativas para uma comunicação mais democrática e mais libertária.
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Young birds and mammals frequently solicit food by means of extravagant and apparently costly begging displays. Much attention has been devoted to the idea that these displays are honest signals of need, and that their apparent cost serves to maintain their honesty. Recent analyses, however, have shown that the cost needed to maintain a fully informative, honest signal may often be so great that both offspring (signaler) and parent (receiver) would do better to refrain from communication. This apparently calls into question the relevance of the costly signaling hypothesis. Here, I show that this argument overlooks the impact of sibling competition. When multiple signalers must compete for the attention of a receiver (as is commonly the case in parent–offspring interactions), I show that (all other things being equal) individual equilibrium signal costs will typically be lower. The greater the number of competitors, the smaller the mean cost, though the maximum level of signal intensity employed by very needy signalers may actually increase with the number of competitors. At the same time, costs become increasingly sensitive to relatedness among signalers as opposed to relatedness between signalers and receivers. As a result of these trends, signaling proves profitable for signalers under a much wider range of conditions when there is competition (though it is still likely to be unprofitable for receivers).
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Seventy-five years ago, Walter Benjamin showed us that the line between "production" and "reproduction" had begun to blur. Reproduction was no longer optional, consequential and degrading (the shredding of the original’s aura), but was instead being transformed into a principle of production itself: something was produced bearing in mind how it was to be reproduced. No longer did the original exist (in photography, film, music recordings), but instead diffusion, exhibition. The work existed precisely at the time and place of its enjoyment. Today, the cultural pirates of the new digital era take this principle to the extreme, with a certain characteristic also foreseen by Benjamin: a yearning to participate, to post-produce something captured in order to later return it to the Internet, modified in some way and made available to others. This postproduction is what is now often mixed up with reception, just as production and reproduction used to be in Benjamin’s day. Postproduction on the receiver’s side, which somehow augments and extends the received work, in other words creates an etymologically rigorous author-ization (auctor as the root of both author and augmentation). The cultural pirate only deserves redemption thanks to this creative augmentation.
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We propose an original method to geoposition an audio/video stream with multiple emitters that are at the same time receivers of the mixed signal. The achieved method is suitable for those comes where a list of positions within a designated area is encoded with a degree of precision adjusted to the visualization capabilities; and is also easily extensible to support new requirements. This method extends a previously proposed protocol, without incurring in any performance penalty.
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In this paper, we propose an original method to geoposition an audio/video stream with multiple emitters that are at the same time receivers of the mixed signal. The obtained method is suitable when a list of positions within a known area is encoded with precision tailored to the visualization capabilities of the target device. Nevertheless, it is easily adaptable to new precision requirements, as well as parameterized data precision. This method extends a previously proposed protocol, without incurring in any performance penalty.
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LIDAR (LIght Detection And Ranging) first return elevation data of the Boston, Massachusetts region from MassGIS at 1-meter resolution. This LIDAR data was captured in Spring 2002. LIDAR first return data (which shows the highest ground features, e.g. tree canopy, buildings etc.) can be used to produce a digital terrain model of the Earth's surface. This dataset consists of 74 First Return DEM tiles. The tiles are 4km by 4km areas corresponding with the MassGIS orthoimage index. This data set was collected using 3Di's Digital Airborne Topographic Imaging System II (DATIS II). The area of coverage corresponds to the following MassGIS orthophoto quads covering the Boston region (MassGIS orthophoto quad ID: 229890, 229894, 229898, 229902, 233886, 233890, 233894, 233898, 233902, 233906, 233910, 237890, 237894, 237898, 237902, 237906, 237910, 241890, 241894, 241898, 241902, 245898, 245902). The geographic extent of this dataset is the same as that of the MassGIS dataset: Boston, Massachusetts Region 1:5,000 Color Ortho Imagery (1/2-meter Resolution), 2001 and was used to produce the MassGIS dataset: Boston, Massachusetts, 2-Dimensional Building Footprints with Roof Height Data (from LIDAR data), 2002 [see cross references].
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This dataset consists of 2D footprints of the buildings in the metropolitan Boston area, based on tiles in the orthoimage index (orthophoto quad ID: 229890, 229894, 229898, 229902, 233886, 233890, 233894, 233898, 233902, 237890, 237894, 237898, 237902, 241890, 241894, 241898, 241902, 245898, 245902). This data set was collected using 3Di's Digital Airborne Topographic Imaging System II (DATIS II). Roof height and footprint elevation attributes (derived from 1-meter resolution LIDAR (LIght Detection And Ranging) data) are included as part of each building feature. This data can be combined with other datasets to create 3D representations of buildings and the surrounding environment.
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National Highway Traffic Safety Administration, Washington, D.C.
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Mode of access: Internet.
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Mode of access: Internet.
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Title from cover.
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Title varies slightly.
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[AP wire caption: Shifting Kamer makes right end strong.: with All-American end Ron Kramer of Michigan moved to wingback in Coach Bennie Oosterban's lineup shuffle, the right end of the Wolverine's offense would be most formidable. Here Kramer and right end Tom Maentz show their relative positions, making a defensive team's problems great as it tries to cope with two fine receivers.]
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Report year ends November 30. Reports usually presented in January.
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v. I. The modern democracy, the citizen and the law - Legal ethics - Law : its origin, nature, development - Courts : federal and state - Law of contracts -- v. 2. Law of torts -- v. 3. Criminal Law - Law of criminal procedure - Law of persons and domestic relations -- v. 4. Personal property and bailments - Law of liens and pledges - Law of agency - Law of sales of personal property -- v. 5. Law of real property -- v. 6. Law of descent and distribution, wills and administration, guardian and ward - Law of landlord and tenant - Law of irrigation and water rights - Law of mines and mining -- v. 7. Equity - Law of trusts - Law of quasi-contacts - Law of estoppel -- v. 8. Law of negotiable instruments - Law of suretyship and guaranty - Law of mortgages : real and chattel - Interpretation of statutes -- v. 9. Law of private corporations - Law of partnership - law of banks, banking and trust companies - Law of receivers -- v. 10. Pleadings in civil actions at common law and under modern statutes - Practice in civil actions - Law of equity pleading - Law of evidence - Laws of attachment and garnishments - Law of judgments and executions - Law of extraordinary remedies - Law of habeas corpus -- v. 11. Constitutional law : definitions and general principles - Organization and powers of the United States Government - Constitutional guaranties of fundamental rights - Eminent domain - Taxation - Naturalization -- v. 12. Conflict of laws - International law - Law of interstate commerce - Law of bankruptcy - Law of patents - Law of copyright - Law of trademarks - Unfair competition and good-will -- v. 13. Law of public service companies, especially common carriers - Law of municipal corporations - Law of public officers and elections - Parliamentary law -- v. 14. Law of damages - Law of insurance - Admiralty law - Medical jurisprudence - Forms -- v. 15. Blackstone's Commentaries.