A powerful history told badly

The Early History of Powerful Radio Galaxies

I briefly review the current status of observations of AGN-powered UV/optical light, starlight, dust and outflow phenomena in high-redshift powerful radio galaxies. The existing data are consistent with the hypothesis that powerful radio galaxies undergo a major episode of star formation at high redshift (z ∼ > 4) during which they form most of their stars, and subsequently evolve ‘passively’, ...

Belief Change Operations: A Short History of Nearly Everything, Told in Dynamic Logic of Propositional Assignments

We examine several belief change operations in the light of Dynamic Logic of Propositional Assignments DL-PA. We show that we can encode in a systematic way update operations (such as Winslett’s ‘Possible Models Approach’) and revision operations (such as Dalal’s) as particular DL-PA programs. Every DL-PA formula being equivalent to a boolean formula, we obtain syntactical counterparts for all ...

Changing How Minnesota History Is Told: A Program Evaluation for Historic Murphy’s Landing

What Precision with a Badly CalibratedCamera in

This paper deals with the ego-motion estimation (motion of the camera) from two views. When we want to estimate the ego-motion we have to nd correspondences and we need a calibrated camera. In this paper we solve the problem how to propagate known camera calibration errors into the uncertainty of the motion parameters. We present a linear estimate of the uncertainty of the motion parameters bas...

Legislating Technology (Badly)

D ue to the computational power of underlying platforms, digital kill switches have a much broader capability and use than earlier industrial panic switches. In the case of mobile computing devices and smartphones, the purpose of the kill switch is to make theft unattractive. Protections include " wiping " the data off the device and/or " bricking " the device so that it is unusable. Consumer R...