The use of nonparametric approaches and semiparametric approaches for modeling fatigue and performance are analyzed. Nonparametric approaches in the form of stand-alone artificial neural networks and semiparametric (hybrid) approaches that combine neural networks with prior process knowledge are explored and compared with existing parametric approaches based on the two-process model of sleep re...

PURPOSE To investigate the accuracy of laboratory results of urine samples collected from cotton balls as compared with paired samples collected from catheterization, Preemie Pampers, and Newborn Pampers. METHOD Urine samples were collected from 30 infants by aspirating urine from a cotton ball placed over the meatus. An additional urine sample was obtained from the same infants by aspiration...

Protection of workers and consumers demands that safety testing accurately detects chemicals and products that can cause injury or disease. Chemicals make our lives more comfortable, but accidental and improper exposures to chemical substances continue to have a significant public health impact. According to the Institute of Medicine (2004), more than 4 million poisonings occur annually in the ...

Title of Thesis: IMPLEMENTING AND EVALUATING ALTERNATIVE AIRSPACE RATIONING METHODS Degree candidate: Jason Matthew Burke Degree and year: Master of Science, 2002 Thesis directed by: Professor Michael O. Ball Institute for Systems Research While airport congestion has long been viewed as a major air traffic management problem in the United States, congestion in the en route airspace is drawing ...

Sludge production from wastewater treatment process is high, and the disposal of excess sludge will be forbidden in a near future, thus increased attention has been turned to look into potential technology for sludge reduction. The study attempts to review alternative sludge disposal methods, including anaerobic digestion, aerobic digestion and landfills. In these sludge processes, excess sludg...

Extracellular vesicles (ECVs) are nano-sized vesicles released by all cells in vitro as well as in vivo. Their role has been implicated mainly in cell-cell communication, but also in disease biomarkers and more recently in gene delivery. They represent a snapshot of the cell status at the moment of release and carry bioreactive macromolecules such as nucleic acids, proteins, and lipids. A major...

This paper outlines the major features of three solvers entered in this years CPAI solver competition. The solvers shared the same underlying architecture which is described in detail in the following paper, the base solver is rjw (submitted by Richard Wallace) which Diarmuid-rndi and Diarmuid-wtdi (both submitted by Diarmuid Grimes) are built on. Furthermore the solvers all used constraint wei...

This paper implements and compares four alternative techniques for the solution of heterogeneous agents business cycle models within the lumpy capital adjustment framework. The widespread Krusell Smith algorithm consistently delivers high accuracy and economic implications quantitatively similar to other bounded rationality, projection-based approaches, but it does so at the cost of high comput...