The data quality of a vector spatial data can be assessed using the data contained within one or more data warehouses. Spatial consistency includes topological consistency, or the conformance to topological rules (Hadzilacos & Tryfona, 1992, Rodríguez, 2005). Detection of inconsistencies in vector spatial data is an important step for improvement of spatial data quality (Redman, 1992; Veregin, ...

All-terrain robot locomotion is an active topic of research. Search and rescue maneuvers and exploratory missions could benefit from robots with the abilities of real animals. However, technological barriers exist to ultimately achieving the actuation system, which is able to meet the exigent requirements of these robots. This paper describes the locomotion control of a leg prototype, designed ...

BACKGROUND Foam pads are increasingly used on force platforms during balance assessments in order to produce increased instability thereby permitting the measurement of enhanced posturographic parameters. A variety of foam pads providing different material properties have thus been used, although it is still unclear which characteristics produce the most effective and reliable tests. Furthermor...

Results The results of the histologic workup were as follows: 74 (45%) were benign nodules and 90 were malignant; 73 of the malignant nodules were classical papillary thyroid cancers, 10 were the follicular variant of papillary thyroid carcinoma (PTC), 5 were follicular cancers, and 2 were medullary cancers. Of these nodules, 37 had a diameter <1 cm and 58 were positive for BRAF mutations, 54 o...

BACKGROUND Products containing alcohol are commonly used with intravascular devices at insertion, to remove lipids from occluded intravascular devices used during parenteral nutrition, and increasingly for the prevention and treatment of intravascular device-related bloodstream infection. The effects of alcohol on the integrity of intravascular devices remain unknown. METHODS Two types of wid...

The estimation of shear wave velocity is very important in ultrasonic elasticity imaging (SWEI). Since the stability and accuracy testing equipment have been greatly improved, order to further improve increase quality maps, we propose a novel real-time curve tracing (RTCT) technique accurately reconstruct motion trace fronts. Based on fitting each frame wave, propagation two-dimensional waves c...

This paper develops theory for feasible estimation and testing of finite-dimensional parameters identified by general conditional quantile restrictions. This includes instrumental variables nonlinear quantile regression as a special case, under much weaker assumptions than previously seen in the literature. More specifically, we consider a set of unconditional moments implied by the conditional...

Unlike many other experimental imaging methods, elastography has enjoyed a strong link to the standard diagnostic and interventional evaluation technique of soft tissue palpation. As a result, the initial excitement about elastography quickly translated to clinical use (e.g., [1-3]) which now includes commercially available ultrasound and magnetic resonance (MR) elastography products. However, ...