PURPOSE Residential care/assisted living describes diverse facilities providing non-nursing home care to a heterogeneous group of primarily elderly residents. This article derives typologies of assisted living based on theoretically and practically grounded evidence. DESIGN AND METHODS We obtained data from the Collaborative Studies of Long-Term Care, which examined 193 assisted living facili...

The Jakobsson hybrid Mix-net proposed by Jakobsson and Juels, is a very practical and efficient scheme for long input messages. But this hybrid Mix-net does not have public verifiable property. In this paper a new attack to the Jakobsson hybrid Mix-net is introduced. This attack breaks the robustness of the hybrid Mix-net scheme, given that the corrupted first mix server and one of the senders ...

This paper studies patient volume and the severity of case mix as they relate to physicians’ human capital accumulation and pace of technology adoption by exploring a quality signaling mechanism through which physicians build peer reputation. We show that volume building leads physicians to actively manage case mix and find that successful surgeries (particularly for difficult cases) raise futu...

OBJECTIVE To detect changes in mortality after surgery, with allowance being made for variations in case mix. DESIGN Observational study of postoperative mortality from January 1992 to August 1995. SETTING Regional cardiothoracic unit. SUBJECTS 3983 patients aged 16 and over who had open heart operations. MAIN OUTCOME MEASURES Preoperative risk factors and postoperative mortality in hos...

BACKGROUND We undertook a randomised, double-blinded, placebo-controlled, crossover trial to test whether intake of artificial food colour and additives (AFCA) affected childhood behaviour. METHODS 153 3-year-old and 144 8/9-year-old children were included in the study. The challenge drink contained sodium benzoate and one of two AFCA mixes (A or B) or a placebo mix. The main outcome measure ...

OBJECTIVES To determine efficiency and efficacy of publicly-funded inpatient stroke rehabilitation based on a Case-Mix Group Classification Model, and to analyse the usefulness of this decisional aid in the refinement of rehabilitation services delivery needed to optimize accessibility to inpatient rehabilitation services for individuals with stroke in a publicly-funded healthcare system. DES...

We give a memoryless scale-invariant randomized algorithm Mix-R for buffer management with bounded delay that is e/(e − 1)-competitive against an adaptive adversary, together with better performance guarantees for many restricted variants, including the s-bounded instances. In particular, Mix-R attains the optimum competitive ratio of 4/3 on 2-bounded instances. Both Mix-R and its analysis are ...

One problem noted recently with the diagnosis-related group payment system is that the distribution of Medicare case weights and case-mix indexes are compressed; that is, the payment rates for high-cost procedures are too low and those for low-cost procedures are too high. Despite the attention compression has received, there are no direct estimates of its magnitude or importance. Presented in ...