2,374 research outputs found

    Digital Death: The Failures, Struggles and Discourses of the Social Media Spectacle

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    Celebrities have always capitalized upon various media to give voice and substance to their own mute causes. From Live Aid to PBS fundraisers, they have utilized their public personae to support the downtrodden, sick and underprivileged. However, in December of 2010, when Alicia Keys and over a dozen other celebrities banded together to raise money for World AIDS Day by eradicating their Twitter and other social media profiles, their much-hyped campaign to raise one million dollars fell short of its goal by nearly half. This paper explores the discourses surrounding the Digital Death Pseudo-Event, and the effects of the disjuncture between the real and digital self when the Celebrity Spectacle is moved from traditional media to the social sphere. Consumer awareness of that gulf ultimately precluded the Digital Death campaign\u27s ability to succeed, not only as a fundraiser, but also as a media spectacle. Ultimately, such revelations point to the inherent natures of social media to promote a certain type of celebrity spectacle that does not conform uniformly to the celebrity of traditional media

    American Attitudes Towards Jews in America

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    The Adolph and Ruth Schnurmacher Lecture in Judaic Studies
 A lecture by Abraham Foxman, National Director of the Anti-Defamation League and Author of Never Again: The Threat of the New Anti-Semitism.https://digitalcommons.fairfield.edu/bennettcenter-posters/1238/thumbnail.jp

    Evolutionary approaches to sexually transmitted infections

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87105/1/j.1749-6632.2011.06078.x.pd

    Slow epidemic extinction in populations with heterogeneous infection rates

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    We explore how heterogeneity in the intensity of interactions between people affects epidemic spreading. For that, we study the susceptible-infected-susceptible model on a complex network, where a link connecting individuals ii and jj is endowed with an infection rate ÎČij=λwij\beta_{ij} = \lambda w_{ij} proportional to the intensity of their contact wijw_{ij}, with a distribution P(wij)P(w_{ij}) taken from face-to-face experiments analyzed in Cattuto et  al.et\;al. (PLoS ONE 5, e11596, 2010). We find an extremely slow decay of the fraction of infected individuals, for a wide range of the control parameter λ\lambda. Using a distribution of width aa we identify two large regions in the a−λa-\lambda space with anomalous behaviors, which are reminiscent of rare region effects (Griffiths phases) found in models with quenched disorder. We show that the slow approach to extinction is caused by isolated small groups of highly interacting individuals, which keep epidemic alive for very long times. A mean-field approximation and a percolation approach capture with very good accuracy the absorbing-active transition line for weak (small aa) and strong (large aa) disorder, respectively

    Probing the C-H Activation of Linear and Cyclic Ethers at (PNP)Ir

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    Interaction of the amido/bis(phosphine)-supported (PNP)Ir fragment with a series of linear and cyclic ethers is shown to afford, depending on substrate, products of α,α-dehydrogenation (carbenes), α,ÎČ-dehydrogenation (vinyl ethers), or decarbonylation. While carbenes are exclusively obtained from tert-amyl methyl ether, sec-butyl methyl ether (SBME), n-butyl methyl ether (NBME), and tetrahydrofuran (THF), vinyl ethers or their adducts are observed upon reaction with diethyl ether and 1,4-dioxane. Decarbonylation occurs upon interaction of (PNP)Ir with benzyl methyl ether, and a mechanism is proposed for this unusual transformation, which occurs via a series of C−H, C−O, and C−C bond cleavage events. The intermediates characterized for several of these reactions as well as the α,α-dehydrogenation of tert-butyl methyl ether (MTBE) are used to outline a reaction pathway for the generation of PNP-supported iridium(I) carbene complexes, and it is shown that the long-lived, observable intermediates are substrate-dependent and differ for the related cases of MTBE and THF. Taken together, these findings highlight the variety of pathways utilized by the electron-rich, unsaturated (PNP)Ir fragment to stabilize itself by transferring electron density to ethereal substrates through oxidative addition and/or the formation of π-acidic ligands
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