To evaluate ultrasonographically determined intima-media thickness as a measure of early atherosclerosis, three studies were performed. Ultrasound measurements of intimamedia thickness in the carotid artery were directly validated by comparing the same thickness measured by light microscopy. The values were closely correlated (r=.82, P<.001). Intima-media thickness determined by light microscop...

Developing augmented reality (AR) applications for mobile devices and outdoor environments has historically required a number of technical trade-offs related to tracking. One approach is to rely on computer vision which provides very accurate tracking, but can be brittle, and limits the generality of the application. Another approach is to rely on sensor-based tracking which enables widespread ...

Immunofluorescence is a valuable auxiliary diagnostic tool for autoimmune bullous diseases and inflammatory disorders, since their clinical and histopathologic findings may be inconclusive. It is a feasible laboratory method that requires experienced technicians and detects in situ and circulating immune deposits that may be involved in the pathogenesis of such skin diseases.

There is an increasing awareness on the importance of software measurement within the software engineering community, as well as the necessity of respecting the scientific basis of measurement. However there is little evidence for the latter as there is a tendency for researchers and practitioners to apply software metrics without a full awareness of what they mean. Coupling, which is the measu...

We present a methodology for extracting the vascular network in the human retina using Dijkstra's shortest-path algorithm. Our method preserves vessel thickness, requires no manual intervention, and follows vessel branching naturally and efficiently. To test our method, we constructed a retinal video indirect ophthalmoscopy (VIO) image database from pediatric patients and compared the segmentat...

This paper presents an indirect method for computing optimal trajectory, subject to robot dynamics, exibilities and actuator constraints. One key-issue that arises from mechanism exibility is nding the Dynamic Load Carrying Capacity (DLCC). The motion planning problem is rst formulated as an optimization problem, and then solved using Pontryagin's minimum principle. The basic problem is convert...

The purpose of negotiation is to enable agents to coordinate their actions. Characterizing coordination in informationtheoretic terms leads us to consider negotiation in the context of other processes that can transfer information among agents, such as those mediated by the environment. We illustrate these concepts using the Minority Game, an abstract model of resource allocation that achieves ...

In this paper, we address several puzzles concerning speech acts, particularly indirect speech acts. We show how a formal semantic theory of discourse interpretation can be used to define speech acts and to avoid murky issues concerning the metaphysics of action. We provide a formally precise definition of indirect speech acts, including the subclass of so-called conventionalized indirect speec...

Combined spatial and temporal equalization with a multi-antenna decision feedback equalizer is considered for a TDMA mobile radio system. Unless the time frame allocation is synchronized for all surrounding base stations, the co-channel interferers may start to interfere at arbitrary time instances during a base stations reception. A co-channel interferer may thus be present during the data seq...

The members of the Committee appointed to examine the dissertation of RONGSEN HE find it satisfactory and recommend that it be accepted.