To determine the normal anatomic radiographic land-marks of the ankle syndesmosis, standardized anterior-posterior radiographs of the right ankle were performed on 40 male and 40 female volunteers. The average tibiofibular clear space was 3.8 mm in females, 4.6 mm in males, and 4.2 mm overall. The tibiofibular overlap measured 6.0 mm in females, 9.6 mm in males, and 7.8 mm overall. Due to this variability and the gender differences, we investigated the anatomy of the syndesmosis as ratios of the potentially variable values to fixed landmarks. The ratio of the tibiofibular overlap to the fibular width averaged 54% and the ratio of the tibiofibular clear space to the fibular width averaged 30%, with no statistically significant difference due to gender. Our data show that for 90% prediction intervals, the values are: (1) tibiofibular clear space less than 5.2 mm in women and 6.5 mm in men; (2) tibiofibular overlap of greater than 2.1 mm in females and 5.7 mm in males; (3) tibiofibular overlap:fibular width ratio greater than 24%; (4) tibiofibular clear space:fibular width ratio less than 44%. Additionally, using a linear regression model, a prediction of the tibiofibular overlap can be made when using the distance (in millimeters) from the incisura fibularis to the lateral tibial (LT) border: tibiofibular overlap = 0.862 x lateral tibia - 2.62 (P = .0001). Utilization of these values will help in the determination of posttraumatic disruption of the syndesmosis and postoperative assessment of mortise reduction.
In service-oriented computing, multiple services often exist to perform similar functions. In these situations, it is essential to have good ways for qualitatively ranking the services. In this paper, we present a new ranking method, ServiceRank, which considers quality of service aspects (such as response time and availability) as well as social perspectives of services (such as how they invoke each other via service composition). With this new ranking method, a service which provides good quality of service and is invoked more frequently by others is more trusted by the community and will be assigned a higher rank. ServiceRank has been implemented on SOAlive, a platform for creating and managing services and situational applications. We present experimental results which show noticeable differences between the quality of service of commonly used mapping services on the Web. We also demonstrate properties of ServiceRank by simulated experiments and analyze its performance on SOAlive.
Abstract. SOAlive aims at providing a community-centric, hosted environment and, in particular, at simplifying the description and discovery of situational enterprise services via a service catalog. We argue that a service community has an impact not only on users and services, but also on the environment itself. Specifically, our position is that a service catalog adds value to users, and is itself enriched, by its incorporation into a community-centric service hosting environment. In addition, analyses of web services directories suggest that a catalog service for enterprise services can be better provided by using a simpler content model that better fits REST, taking advantage of collaborative practices to annotate catalog entries with informal semantic descriptions via tagging, providing a mechanism for embedding invocations of discovered services, and allowing syntactic descriptions to be refined via usage monitoring. The SOAlive service catalog defines a flexible content model, a discovery function that navigates the cloud of tag annotations associated with services in a Web 2.0 fashion, and a service description refinement function that allows the actual use of a service to refine the service description stored in the catalog.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.