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Currently, most search engines are text-based and their structures are centralized. These kinds of engine are sufficient for searching text information in Internet. However, while searching audio resource, an efficient content-based audio search engine is required. In this paper, we demonstrate an audio search engine ASEKS based on keyword spotting(More)
It is well known that many technical and physiologic factors can affect the reliability of the standardized uptake value (SUV) on FDG PET-CT. Another potential problem of which we may be aware but has not been previously discussed is significant SUV overestimation of lesions in the direct neighborhood of large hot sources, namely, areas with high FDG uptake(More)
Unlike for most other malignancies, application of FDG PET/CT is limited for renal cell carcinoma (RCC), mainly due to physiological excretion of 18F-fluoro-2-deoxy-2-d-glucose (FDG) from the kidneys, which decreases contrast between renal lesions and normal tissue, and may obscure or mask the lesions of the kidneys. Published clinical observations were(More)
We study whether employer premium contribution schemes could impact the pricing behavior of health plans and contribute to rising premiums. Using 1991-2011 data before and after a 1999 premium subsidy policy change in the Federal Employees Health Benefits Program (FEHBP), we find that the employer premium contribution scheme has a differential impact on(More)
BACKGROUND For accurate nodal staging, all blue and radioactive lymph nodes should be sampled during the sentinel lymph node biopsy for breast cancer. We report a case of anomalous drainage in which one of the sentinel lymph nodes was unexpectedly found in the level III axillary space. CASE PRESENTATION A 40-year-old female underwent mastectomy for(More)
In this paper we consider the problem of equalizing throughput of nodes in CSMA-based wireless networks. We model interference in a network using conflict graph, where edges represent hard-core interaction, meaning that the two nodes an edge connects cannot be simultaneously active, or transmitting. In practice, the degrees of nodes in a conflict graph are(More)
The role of fluorine‑18 fluorodeoxyglucose (FDG) positron emission tomography (PET)‑computed tomography (CT) in prostate cancer remains controversial due to a limited number of previous clinical investigations. The aim of the present retrospective study was to assess the diagnostic value of FDG PET‑CT in prostate cancer, with an emphasis on the detection of(More)
This dissertation consists of three essays on health insurance markets, analyzing the impact of employer premium contribution schemes on both the supply and demand sides of the market. The first two essays focus on the supply side, whereas the third essay looks at the demand side. In the first essay, I present an analytical framework to illustrate the(More)