Utopian Pulse – Flares in the Darkroom

The utopian Darcy Ribeiro archive.

The project in memory of anthropologist, writer and politician Darcy Ribeiro is analyzed, with emphasis on the relationship he had with his personal archives and the creation of the Darcy Ribeiro Foundation, established to give continuity to his 'legacy.' It highlights the influences present in the formation of his archive and presents an ethnography that seeks to restore the historicity of the...

Mythos, Memory, and Utopian Visions

Pulse Width Evolution of Late Time X-rays Flares in GRBs: Evidence For Internal Shocks

We study the duration and variability of late time X-ray flares following gamma-ray bursts (GRBs) observed by the narrow field X-ray telescope (XRT) aboard the Swift spacecraft. These flares are thought to be indicative of late time activity by the central engine that powers the GRB and produced by means similar to those which produce the prompt emission. We use a non-parametric procedure to st...

The Good City: In Defense of Utopian Thinking

I consider social action and political projects to be essential in the betterment of a society that clearly needs change and hope. And I do hope that this book, by raising some questions and providing empirical and theoretical elements to treat them, may contribute to informed social action in the pursuit of social change. In this sense, I am not, and do not want to be, a neutral, detached obse...

Pulse Width Evolution of Late Time X-rays Flares in GRBs

We study the duration and variability of late time X-ray flares following gamma-ray bursts (GRBs) observed by the narrow field X-ray telescope (XRT) aboard the Swift spacecraft. These flares are thought to be indicative of late time activity by the central engine that powers the GRB and produced by means similar to those which produce the prompt emission. We use a non-parametric procedure to st...