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This article explores how structural changes to the media environment, such as the development of social media, might enhance or impede presidents' public leadership efforts. We argue that characteristics of Twitter as a medium provide presidents with incentives to exploit these new opportunities and alter the content of presidential rhetoric. To test this claim about presidential rhetoric, we use...
ObjectiveEnhanced adhesive signaling, including activation of focal adhesion kinase (FAK), is a hallmark of fibroblasts from lung fibrosis patients, and FAK has therefore been hypothesized to be a key mediator of this disease. This study was undertaken to characterize the contribution of FAK to the development of pulmonary fibrosis both in vivo and in vitro.
MethodsFAK expression and activity were...
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