Traditional system reliability efforts have failed to focus on software reliability. To remedy this, the authors propose a method that uses descriptive analyses, trend analyses, and reliability models to control testing activities, evaluate software reliability, and plan maintenance. uring the development of a software system, the supplier must efficiently monitor the development activities; co...

We study the build up of complexity on the example of 1 kg matter in different forms. We start with the simplest example of ideal gases, and then continue with more complex chemical, biological, life, social and technical structures. We assess the complexity of these systems quantitatively, based on their entropy. We present a method to attribute the same entropy to known physical systems and t...

Quantitative MRI assessment of leukoencephalopathy is difficult because the MRI properties of leukoencephalopathy significantly overlap those of normal tissue. This report describes the use of an automated procedure for longitudinal measurement of tissue volume and relaxation times to quantify leukoencephalopathy. Images derived by using this procedure in patients undergoing therapy for acute l...

36 Purpose: To determine whether morbidity and mortality in patients with cardiovascular 37 comorbidities, but no known ocular disease, is related to demonstrable quantitative changes 38 in the retinal microvasculature. 39 Methods: 11 eyes from 8 donors with cardiovascular comorbidities as a diseased group were 40 compared with 16 eyes from 14 donors free from vascular disease as a control grou...

It is now widely accepted that one of the principal functions of premedication is the relief of anxiety in the pre-operative period. This being so, the main problem in quantifying the effects of premedication is the measurement of pre-operative anxiety or the extent to which this has been allayed by premedicant drugs. The measurement of anxiety is a subject which concerns not only the anaesthet...

• In the intact animal or man, pulmonary engorgement and edema are generally assessed on clinical and radiographic grounds. In the present study, pulmonary engorgement or a combination of pulmonary engorgement and edema was produced experimentally in anesthetized dogs and an attempt was made to distinguish between the two categories on the basis of measurements of the pulmonary blood volume, th...

Risk assessment and HACCP are related, but fundamentally di€erent processes. Four major elements of risk assessment are commonly described (hazard identi®cation; exposure assessment; dose-response assessment or hazard characterization; and risk characterization). Some similarities exist between the inputs for the ®rst elements of risk assessment (hazard identi®cation) and HACCP (hazard analysis...

The conversion of raw point-cloud elevation data to grid DEMs is done by interpolation. Current interpolation methods produce either high quality results or take an acceptable amount of time, but not both. This paper seeks to reconcile these two objectives through parallelizing a high-quality interpolation method, nearest-neighbor averaging. We explore the speed-up obtained by parallelization a...