Spontaneous esophageal-pleural fistula is a rare entity. The authors describe a case of 60-year-old male who presented with cough with expectoration, severe retrosternal chest pain and shortness of breath and vomiting. Computed tomography with oral contrast showed right esophageal-pleural...

A novel survey dataset on computed tomography (CT) machine acquisition is used to explore which theories best answer two questions from the decision making literature. First, what determines how much uncertainty a firm has when investing in updated technology? Second, what determines the value...

The brain has evolved to enable organisms to survive in a complicated and dynamic world. Its operation is based upon a priori models of the environment which are adapted, during learning, in response to new and changing stimuli. The same qualities that make biological learning mechanisms ideal...