‘This time it’s different’: Covering threats to journalism and the eroding public sphere

'This is citizen journalism at its finest': YouTube and the public sphere in the Oscar Grant shooting incident

On 1 January 2009, Oscar Grant was shot and killed in a subway station by Bay Area Rail Transit officers. This event was recorded by several passengers on their cellphones and later uploaded to the video-sharing website YouTube. The videos generated significant protests among online and offline communities, and were eventually used as evidence in the ensuing trial. This study employed a critica...

Public sphere and intellectual discourses in Iran

A Minimum Sphere Covering Approach to Learning

In this paper we present an integer programming formulation of the minimum sphere covering problem that seeks to construct a minimum number of spheres to represent the training data. Using soft threshold functions, we further derive a linear programming problem whose solution gives rise to radial basis function classifiers and sigmoid function classifiers. In contrast to traditional RBF and sig...

alternative citizen media and the public sphere

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the effect of task cognitive complexity and time limit on the performance of the learners with different proficiency levels in second language writing skill

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...