Urban catalyst theory is based on the excavation of phenomenon "mutual stimulation elements", designing and amplifying synergistic effect between elements, that is, effect. In this paper, topological analysis framework dotted-line relationship physical space introduced, it found topology has distinct characteristics. This a minor innovation in understanding urban theory. A case illustrates full...

This paper describes an update of the ellip command for graphing confidence ellipses in Stata 8. Two of the most notable new features are the option to graph confidence ellipses around variable means and the ability to add inscribed lines. These features allow a geometric characterization of linear regression with unequal error variances, as in McCartin (2003).

The vision to transform school education through the use of information and communication technologies has existed for more than two decades. Successful models of small-scale implementation of that vision in a few classrooms or schools have been evident for almost as long, but few of them have achieved widespread success. The trajectory of most learning technology innovations starts with an exc...

The role of two-dimensional process graphing in Adaptive Case Management (ACM) is examined. Three design criteria are identified for ACM that were never considered for BPMN. The question for discussion is whether these requirements eliminate all kinds of flow-chart type languages from consideration for use as a process modeling language for users of ACM.