840 research outputs found
Partnering with Medicaid to Advance and Sustain the Goals of the Child Welfare System
The purpose of this paper is to serve as a practical guide for child welfare directors who are looking to expand or sustain services for the children and families that they serve. This paper focuses on ways to partner with Medicaid to leverage opportunities to provide high quality services for children in child welfare who have behavioral health needs. It also includes information that will provide a foundational understanding of the behavioral health needs of children involved with the child welfare system, with an emphasis on describing child behavior through the lens of child development, adaptive functioning, and trauma; the services that can effectively address those behavioral and trauma related responses that can disrupt a child's skills and abilities; and, examples from states and counties who are providing these services and supports
Investigation of the XCAT phantom as a validation tool in cardiac MRI tracking algorithms.
PURPOSE: To describe our magnetic resonance imaging (MRI) simulated implementation of the 4D digital extended cardio torso (XCAT) phantom to validate our previously developed cardiac tracking techniques. Real-time tracking will play an important role in the non-invasive treatment of atrial fibrillation with MRI-guided radiosurgery. In addition, to show how quantifiable measures of tracking accuracy and patient-specific physiology could influence MRI tracking algorithm design. METHODS: Twenty virtual patients were subjected to simulated MRI scans that closely model the proposed real-world scenario to allow verification of the tracking technique's algorithm. The generated phantoms provide ground-truth motions which were compared to the target motions output from our tracking algorithm. The patient-specific tracking error, ep, was the 3D difference (vector length) between the ground-truth and algorithm trajectories. The tracking errors of two combinations of new tracking algorithm functions that were anticipated to improve tracking accuracy were studied. Additionally, the correlation of key physiological parameters with tracking accuracy was investigated. RESULTS: Our original cardiac tracking algorithm resulted in a mean tracking error of 3.7 ± 0.6 mm over all virtual patients. The two combinations of tracking functions demonstrated comparable mean tracking errors however indicating that the optimal tracking algorithm may be patient-specific. CONCLUSIONS: Current and future MRI tracking strategies are likely to benefit from this virtual validation method since no time-resolved 4D ground-truth signal can currently be derived from purely image-based studies
Order parameter model for unstable multilane traffic flow
We discuss a phenomenological approach to the description of unstable vehicle
motion on multilane highways that explains in a simple way the observed
sequence of the phase transitions "free flow -> synchronized motion -> jam" as
well as the hysteresis in the transition "free flow synchronized motion".
We introduce a new variable called order parameter that accounts for possible
correlations in the vehicle motion at different lanes. So, it is principally
due to the "many-body" effects in the car interaction, which enables us to
regard it as an additional independent state variable of traffic flow. Basing
on the latest experimental data (cond-mat/9905216) we assume that these
correlations are due to a small group of "fast" drivers. Taking into account
the general properties of the driver behavior we write the governing equation
for the order parameter. In this context we analyze the instability of
homogeneous traffic flow manifesting itself in both of the mentioned above
phase transitions where, in addition, the transition "synchronized motion ->
jam" also exhibits a similar hysteresis. Besides, the jam is characterized by
the vehicle flows at different lanes being independent of one another. We
specify a certain simplified model in order to study the general features of
the car cluster self-formation under the phase transition "free flow
synchronized motion". In particular, we show that the main local parameters of
the developed cluster are determined by the state characteristics of vehicle
motion only.Comment: REVTeX 3.1, 10 pages with 10 PostScript figure
226 A work load study to determine the proportion of time spent on delivering rescue vs. prevention clinical care in adults with cystic fibrosis
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Public-Private Partnerships: Lessons Learned from a Partnership: Consolidated Contractors Company and the Morganti Group Inc. (Ccc/Morganti), Al-Balqa’ Applied University (Bau)/Al-Huson University College (Ahuc) and the Usaid Jordan Economic Development Program
This paper describes a Public-Private Partnership that brings together: Al-Balqa’ Applied University/Al-Huson University College (AHUC); Consolidated Contractors Company and the Morganti Group Inc. (CCC/MORGANTI); Al-Huson Career Development Center (CDC); and USAID Jordan Economic Development Program (SABEQ). The Partnership enhances CCC/MORGANTI with its corporate responsibility initiative in Jordan as well as addressing CCC/MORGANTI’s labor force needs from Jordan and in the MENA Region. The lessons learned from the process of developing this partnership may be applied to other potential and emerging partnerships in other sectors. The paper draws on principles and best Education and Training Public/Private Partnerships Improved Workforce Demand-Driven Skills in Selected Sectors USAID Jordan Economic Development Program 5 practices of Public-Private Partnerships (PPPs), includes specific references to recent publications, and includes step-by-step procedures needed to form effective partnerships
Measuring higher education quality
The panelists indicated that considerable progress is being made by such organizations as ACT and NCHEMS in identifying the domains of quality to be measured and particularly in devising unidimensional indicators of student progress. Few were able to cite comparable advancements in the development of multivariate techniques to assess the relation of student growth to other variables. Notable progress in achieving consensus on appropriate standards for measuring quality institutions or curricular programs within comparable institutions remains as a future task.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/43587/1/11162_2004_Article_BF00991828.pd
Clinical, industrial, and research perspectives on powder bed fusion additively manufactured metal implants
For over ten years, metallic skeletal endoprostheses have been produced in select cases by additive manufacturing (AM) and increasing awareness is driving demand for wider access to the technology. This review brings together key stakeholder perspectives on the translation of AM research; clinical application, ongoing research in the field of powder bed fusion, and the current regulatory framework. The current clinical use of AM is assessed, both on a mass-manufactured scale and bespoke application for patient specific implants. To illuminate the benefits to clinicians, a case study on the provision of custom cranioplasty is provided based on prosthetist testimony. Current progress in research is discussed, with immediate gains to be made through increased design freedom described at both meso- and macro-scale, as well as long-term goals in alloy development including bioactive materials. In all cases, focus is given to specific clinical challenges such as stress shielding and osseointegration. Outstanding challenges in industrialisation of AM are openly raised, with possible solutions assessed. Finally, overarching context is given with a review of the regulatory framework involved in translating AM implants, with particular emphasis placed on customisation within an orthopaedic remit. A viable future for AM of metal implants is presented, and it is suggested that continuing collaboration between all stakeholders will enable acceleration of the translation process
Dispersions of Carbon nanotubes in Polymer Matrices
Dispersions of carbon nanotubes exhibiting long term stability are based on a polymer matrix having moieties therein which are capable of a donor-acceptor complexation with carbon nanotubes. The carbon nanotubes are introduced into the polymer matrix and separated therein by standard means. Nanocomposites produced from these dispersions are useful in the fabrication of structures, e.g., lightweight aerospace structures
Enhancing Protection of Underwater Heritage Assets
Historic England holds the primary responsibility for the preservation of underwater heritage assets (UHA) in the English Inshore Marine Planning Area. Contemporary threats to UHA, whether protected by virtue of a specific legal designation or otherwise, are potentially increasing with the march of technology – enabling discovery of and access to UHA at an unprecedented level. Effective protection of UHA must incorporate effective enforcement of the laws designed to that end – whether in the case of specifically focused heritage laws or those related to salvage or marine licensing. This project helps to identify areas where potential synergies in enforcement effort might exist. Further, it explores the limitations and obstacles to effective cross-party working and offers some solutions for overcoming them
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