By a theorem of Banyaga the group of diffeomorphisms of a manifold P preserving a regular contact form α is a central S extension of the commutator of the group of symplectomorphisms of the base B = P/S. We show that if T is a Hamiltonian maximal torus in the group of symplectomorphism of B, then its preimage under the extension map is a maximal torus not only in the group Diff (P, α) of diffeo...

Small knee flexion angles at initial contact and large ground reaction forces during landing have been identified as risk factors for non-contact anterior cruciate ligament injuries that are common in sports. This study investigated the effects of knee extension constraint on knee flexion angle and ground reaction forces for patients who were 4-6 months post ACL reconstruction surgery, and also...

In the era of big data, the Internet engineering community is searching for solutions to alleviate the issues caused by the constantly increasing data traffic. In this paper, we attempt to revive the sneakernet paradigm as a possible solution for non-real-time bulk data transfers. We propose a sample network architecture that takes advantage of the existing worldwide airline infrastructure, and...

Contact centers are increasingly assuming a role in the relationship among organizations and customers. This is a sector that has a considerable growth around the world pushed by the telecommunication deregulation and by the need to improve interaction with customers. This phenomenon is amplified by the competitiveness between organizations. In recent years the Portuguese centers have moved int...

Health extension programs represent an opportunity for practice-based research networks (PBRNs) and primary care practices to develop collaborations reaching beyond the clinic walls to address the upstream social determinants of health and engage in community-based research. The Health Extension Regional Officers (HEROs) program at the University of New Mexico described in this issue of the JAB...

OBJECTIVE Pressure mitigation is crucial for the healing of plantar diabetic foot ulcers. We therefore discuss characteristics and considerations associated with the use of offloading devices. RESEARCH DESIGN AND METHODS A diabetic foot ulcer management survey was sent to foot clinics in all 50 states and the District of Columbia in 2005. A total of 901 geographically diverse centers responde...

Call centers are complex contact centers to handle large volume of inbound, outbound or both types of calls depending on the business purpose. Call centers assume the role of the primary contact medium for many companies from a wide range of industries with their customers or clients. Despite of being seen traditionally as adding cost to the companies’ bottom lines, call centers are now viewed ...

This paper introduces a new method for shift scheduling in multi-skill call centers. The method consists of two steps. First, staffing levels are determined and next, in the second step, the outcomes are used as input for the scheduling problem. The scheduling problem relies on a linear programming model that is easy to implement and has short computation times, i.e., a fraction of a second. Th...

Motivation Numerous highly specialized facilities for the diagnosis and treatment of rare diseases exist in Germany, but it is challenging to present them adequately. Searching in the internet is a common way for patients to find medical information or appropriate clinical experts [1]. Existing services and databases such as Orphanet already offer good contact information to expert centers. A c...

STUDY DESIGN Facet loading parameters of lumbar cadaver spines were measured during extension before and after placement of an interspinous process implant. OBJECTIVE The study was undertaken to quantify the influence of an interspinous implant on facet loading at the implanted and adjacent levels during extension. SUMMARY OF BACKGROUND DATA Facet loading is increased during extension and d...