Case management has evolved from a grassroots method to assist patients and facilities to navigate changes in the healthcare system, to a fully fledged profession with core competencies, Standards of Practice, and an evidence-based peer review journal. With the latest healthcare reform, it is clear that case management leads to many initiatives: it is our time to lead.

In this issue of the Journal, Etzioni et al. (1) suggest a novel approach to estimating overdiagnosis in breast cancer. However, there is a key assumption in their method regarding the nature of overdiagnosis that is unlikely to hold and leads to an underestimate of the overdiagnosis rate. To understand this assumption, we need to go back to basic definitions. Lead time is the time from detecti...

Paknejad et al.’s model is considered in this paper. Itemwise multiobjective models for both exponential and uniform lead-time demand are taken and the results are compared numerically both in fuzzy optimization and intuitionistic fuzzy optimization techniques. Objective of this paper is to establish that intuitionistic fuzzy optimizaion method is better than usual fuzzy optimization technique ...

We consider dense wireless random-access networks, modeled as systems of particles with hard-core interaction. The particles represent the network users that try to become active after an exponential back-off time, and stay active for an exponential transmission time. Due to wireless interference, active users prevent other nearby users from simultaneous activity, which we describe as hard-core...