Materials and methods We conducted prospective cohort study of patients enrolled in care and treatment facilities in Dar es Salaam from October 2004 to September 2011. LTFU was defined as missing clinic visit for 90 and 180 consecutive days after the last scheduled appointment date among patients on ART and care and monitoring respectively. For univariate and multivariate analysis, Cox proporti...

This paper explores the applicability of the concepts of absorptive capacity and ‘‘ba’’ to ex ante project risk. We develop a hybrid framework to explain knowledge transfer based on these concepts—one that proposes a hybrid transference process. We then apply this framework to develop a methodology and metric for assessing ex ante software project risk, the risk that a new technology introduced...

The problem of determining nurse staffing levels in a hospital environment is a complex task due to variable patient census levels and uncertain service capacity caused by nurse absenteeism. In this paper we combine an empirical investigation of the factors affecting nurse absenteeism rates with an analytical treatment of nurse staffing decisions using a novel variant of the newsvendor model. U...

vii CHAPTER

a project is any endeavor involving planned action, for example, developing a new product or constructing a dam. [ce1] major factors for a project to be successful are applying performance measurement and feedback tool. one such well-known performance measurement tool to control the project execution is earned value management (evm). evm uses the fundamental principle that trends in the past ca...

this paper aims at providing a new model based on data envelopment analysis (dea) to prioritize project risks. it is clear that the large amounts of involved capitals, the long term of infrastructure projects’ implementation, and the project management problems in on-time completion of projects indicate the necessity of paying particular attention to this issue and conducting applied research i...