OBJECTIVE To evaluate how often coding changes between and within revisions of the International Classification of Diseases (ICD) complicate the description of long-term trends in cause-specific mortality. METHODS Data on cause-specific mortality between 1950 and 1999 for men and women aged 60 and older were obtained from Denmark, England and Wales, Finland, the Netherlands, Norway and Sweden...

In time-domain simulations of power system transients, trapezoidal integration with fixed step-size is the most common method due to its accuracy and ease implementation. Discontinuities occurring within time-step when simulating electronics circuits, may cause numerical oscillations errors. Several methods are available in literature for interpolation handling discontinuities. This paper inten...