CONTEXT For most patients aged 65 years or older with cancer, hospice services are uniformly covered by Medicare. Hospice care is believed to improve care for patients at the end of life. However, few patients use hospice and others enroll too late to maximize the benefits of hospice services. OBJECTIVES Because type of insurance may affect use, we examined whether patients with Medicare mana...

BACKGROUND Our aim was to compare access to effective care among elderly Medicare patients in a Staff Model and Group Model HMO and in Fee-for-Service (FFS) care. METHODS We used a retrospective cohort study design, using claims and automated medical record data to compare achievement on quality indicators for elderly Medicare recipients. Secondary data were collected from 1) HMO data sets an...

This study is to evaluate the efficacy of additional concurrent chemotherapy for intermediate risk (stage II and T3N0M0) NPC patients treated with intensity-modulated radiotherapy (IMRT).440 patients with intermediate risk NPC were studied retrospectively, including 128 patients treated with IMRT alone [radiotherapy group (RT group)] and 312 paitents treated with IMRT plus concurrent chemothera...

Fluorescence fluctuation spectroscopy (FFS) quantifies interactions of fluorescently labeled proteins inside living cells by brightness analysis. Conventional FFS implicitly requires that the sample thickness exceeds the size of the observation volume. This condition is not always fulfilled when measuring cells. Cytoplasmic sections, especially, can be thinner than the axial size of the observa...

OBJECTIVES To compute a benchmark for tracking readmission rates among patients enrolled in Medicare's private comprehensive Medicare Advantage (MA) plans and to develop preliminary comparisons with the fee-for-service (FFS) readmission rates. STUDY DESIGN Descriptive data presentation with analytic discussion. METHODS We computed a benchmark for rehospitalization rates among MA patients us...

In this article, case-mix-adjusted outcomes of home health care are found to be superior for Medicare fee-for-service (FFS) patients relative to Medicare health maintenance organization (HMO) patients. The superior outcomes for FFS patients were accompanied by higher utilization and cost of home health services, suggesting a volume-outcome (or dose-response) relationship that was further substa...

We propose a new A-film-enhanced fringe field switching (A-FFS) liquid crystal display whose required dΔn value is only λ/4, which is one-half of a conventional FFS. Fast response time can be achieved by either decreasing the cell gap (d) or choosing a low birefringence (Δn) and low-viscosity liquid crystal. The effect of dΔn mismatch between A-film and FFS cell on contrast ratio is analysed. B...

Using the Diagnostic Cost Group (DCG) model developed from a national sample, we examine biased selection among one fee-for-service (FFS) plan, one preferred provider organization, and several health maintenance organizations (HMOs) in Massachusetts. The proportions of enrollees in low-risk groups are higher in the HMO plans and lower in the FFS plan. The average age in the FFS plan is 9 years ...

We design three different layouts of DFFs in a 28 nm thin-BOX FD-SOI process to compare their radiation hardness. We measure them by alpha-particle irradiation. Experimental results show that the soft-error probability of two-fingered inverters is 2.6x higher than that of one-fingered one at 0.4 V when DATA and CLK are 1 and 0 respectively. We also measure the relationship between process varia...

This paper focuses on a Flexible Flow Shop (FFS) problem in a paint company in an attempt to minimize production makespan. The FFS problem is characterized by multiple products being produced in machines in stages with sequence dependent set up times and infinite intermediate storages. As the FFS problem is computationally complex, two heuristic methods are employed to solve the Mixed Integer L...