It is shown that under a certain condition on a semimartingale and a time-change, any stochastic integral driven by the time-changed semimartingale is a time-changed stochastic integral driven by the original semimartingale. As a direct consequence, a specialized form of the Itô formula is derived. When a standard Brownian motion is the original semimartingale, classical Itô stochastic differen...

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This paper argues that it can give good results to use bad and good design examples when teaching Human-Computer Interaction provided that the examples are elaborated by the teacher in a manner that enables a changed (shaken) mind-set in the students. In the paper examples from lectures, exercises and larger assignments using concrete material as a base, are discussed from the perspective of ge...

I the past 20 years, many articles about public agencies’ increasing exposure to liability have been published in engineering journals, legal journals, and in the popular press. These articles have helped to further professional awareness of the need to design, construct, and maintain highway facilities with public safety in mind. However, there has been no relief from the relentless juggernaut...

E pidemiology is the study and analysis of distribution and determinants of health-related conditions or events including diseases, and the practice of this study to the control of diseases and other health problems (1). One of the basic issues in epidemiology and the beginning of a research project is conducting a suitable design for our study (2). The aim of this study is to brief e...