942 resultados para Radio stations
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Mode of access: Internet.
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Mode of access: Internet.
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Being a part of many radio stations' progra
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En un amplio contexto, el objetivo general de Radio Semillas: La voz de Iraca es identificar los alcances del periodista radial en pequeñas comunidades para justificar la existencia de las radios comunitarias. Se busca establecer la reivindicación de este tipo de emisoras al exhibir su labor en el fortalecimiento de comunidad. Finalmente, este trabajo se realizó con el estímulo y compromiso periodístico de aportar un trabajo transmedia de calidad a la actual bibliografía académica acerca de radios comunitarias en el país.
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Investigación acerca del financiamiento de la radio en el Quindío, las consecuencias que tiene la venta de espacios en las emisoras y las presiones que hay sobre los periodistas al realizar intercambio de pauta publicitaria con sectores de la dirigencia y el poder.
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A central question in political economy is how to incentivize elected socials to allocate resources to those that need them the most. Research has shown that, while electoral incentives lead central governments to transfer fewer funds to non-aligned constituencies, media presence is instrumental in promoting a better allocation of resources. This study evaluates how these two phenomena interact by analyzing the role of media in compensating political biases. In particular, we analyze how media presence, connectivity and ownership affect the distribution of federal drought relief transfers to Brazilian municipalities. We find that municipalities that are not aligned with the federal government have a lower probability of receiving funds conditional on experiencing low precipitation. However, we show that the presence of radio stations compensates for this bias. This effect is driven by municipalities that have radio stations connected to a regional network rather than by the presence of local radio stations. In addition, the effect of network-connected radio stations increases with their network coverage. These findings suggests that the connection of a radio station to a network is important because it increases the salience of disasters, making it harder for the federal government to ignore non-allies. We show that our findings are not explained by the ownership and manipulation of media by politicians.
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Mode of access: Internet.
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Mode of access: Internet.
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Description based on: 11th ed., 1952; title from cover.
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Supersedes the Quarterly Supplements To the List of Radio Stations of the U.S. Jan. 1915, No. 1
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"March 1992"--Cover.
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The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30-80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy-corrected for geometrical effects-is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.
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Este trabajo aborda la posible contribución de la radio al envejecimiento activo. La ética comunicativa actual debe tener presentes los colectivos más vulnerables de la sociedad y uno de ellos es el de la vejez. Se recogen en el artículo los principales datos demográficos sobre población mayor, cuyo crecimiento es tal que se hace necesario un cambio de paradigma a la hora de abordar estos cambios, lo que se conoce como envejecimiento activo. Se plantea que la radio, por sus peculiares características, puede contribuir a promover dicho paradigma. Pero es necesario partir de datos objetivos y el artículo concluye presentando los datos y gráficos de la investigación realizada sobre la presencia de la vejez en los magazines matinales de las cuatro emisoras más importantes del país.