Michael J. McKenna,1 Steve F. Fraser,1 Jia L. Li,1 Xiao N. Wang,2 Michael F. Carey,2 Eleonora A. Side,3,4 Judith Morton,3,4 Gregory I. Snell,3,4 Keld Kjeldsen,5 and Trevor J. Williams3,4 1Muscle, Ions and Exercise Group, School of Human Movement, Recreation and Performance, and 2School of Biomedical Science, Centre for Rehabilitation, Exercise and Sports Science, Victoria University of Technolo...

The first three sections give a quick overview of Martin boundary theory and state the main results. The succeeding sections will flesh out the details, and give proofs and examples. Virtually all of the results below are classical. The article Doob (1959) and the book by Kemeny, Snell, and Knapp (1976) are good sources for additional details. A recent survey article by Wolfgang Woess (1994) ha...

,1 Ussing, H. H.-, The Relation Between Active Ion Transport and Bioelectric Phenomena (Rio de Janeiro: Instituto de Biofisica, Universidade de Brasil, 1955). 6 Glynn, I. M., J. Physiol., 134, 278 (1956). 7 Snell, F. M., "A Concept of Active Transport," in Disturbance of Cellular Metabolism in the Premature Infant, Report of the 32nd Ross Conference on Pediatric Research, ed. S. W. Fomon (Colum...

The catalytic r81e of the pyruvate oxidation factor (1, 2) in the production of active acetate for lipide synthesis by lactic acid bacteria has been described by Snell and Broquist (3). In the course of a survey of the pyruvate oxidation factor (POF) and acetate requirements of a collection of lactic acid bacteria, several strains were found that required either material for growth on gluconate...

This paper is based on a report prepared under Contract C-1980 between the Wisconsin Department of Workforce Development and the Institute for Research on Poverty. The authors thank Emma Caspar for exceptional efforts in supervising the collection of the policy variables used in this analysis, Judith Cassetty and Royce Hutson for work on related projects on which this analysis draws, and Dawn D...

We consider the problem of optimal multiple switching in finite horizon, when the state of the system, including the switching costs, is a general adapted stochastic process. The problem is formulated as an extended impulse control problem and completely solved using probabilistic tools such as the Snell envelop of processes and reflected backward stochastic differential equations. Finally, whe...

We consider a class of stochastic impulse control problems of general stochastic processes i.e. not necessarily Markovian. Under fairly general conditions we establish existence of an optimal impulse control. We also prove existence of combined optimal stochastic and impulse control of a fairly general class of diffusions with random coefficients. Unlike, in the Markovian framework, we cannot a...

BACKGROUND The aim of this study is to evaluate the prognostic factors of overall survival (OS) after haematopoietic stem cell transplant (HSCT) in acute lymphoblastic leukaemia (ALL) patients using accelerated failure time (AFT), Cox proportional hazard (PH), and Cox time-varying coefficient models. METHODS 206 patients were enrolled after HSCH in Shariati Hospital between 1993 and 2007. The...

BACKGROUND Regression models for survival data have traditionally been based on the Cox regression model. However, its validity relies heavily on assumption of proportional hazards. Another restriction of the Cox model is insufficiency in dealing with time-varying covariate effects, since the regression coefficients are assumed constant. These weaknesses have generated interest in alternative a...