Security in general and database protection from unauthorized access in particular, are crucial for organizations. Although it has long been accepted that system requirements should be considered from the early stages of the development, non-functional requirements, such as security, tend to be neglected and dealt-with only at the end of the development process. Various methods have been propos...

“Self-Fulfilling Prophecy” or Recognition Requires a Concept of Perception To the Editor: The NINDS rt-PA Stroke Trial did not prospectively assess quantity and quality of ischemic brain parenchyma as detected by baseline CT.1 In this trial, no CT reading panel graded CT scans on the basis of predefined definitions. Now the trialists hypothesized that there would be disagreement among them abou...