952 research outputs found

    A piezoelectrically actuated ball valve

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    Bimorph strip composed of two layers of poled piezoelectric ceramic material closes and opens valve. Strip performs like capacitator, allowing initial inrush of current when valve is energized and then only small leakage current flows as valve remains energized

    Analysis, design, and prototype development of squeeze-film bearings for AB-5 gyro Final report phase 2, design, fabrication and evaluation of prototypes

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    Squeeze-film bearing transducers with piezoceramic cylinders for AB-5 gyro - design, fabrication, and testing of cylindrical journal and annular bearing prototype

    The Devolution of Managed Care Contractor Duties: Analysis and Implications for Public Policy in Managed Behavioral Health Care

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    This Issue Brief analyzes the devolution of the legal duties assumed by managed care organizations (MCOs) in their contracts with group purchasers. Specifically, this brief examines the delegation of MCO contractual duties related to member care and services to individual network providers by comparing the language used in master contracts between purchasers and MCOs with the language contained in agreements with network health care providers who serve members covered under the master contract

    The Devolution of Managed Care Contractor Duties: Analysis and Implications for Public Policy in Managed Behavioral Health Care

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    This study, undertaken by the Center for Health Services Research and Policy at the George Washington University (GWU) School of Public Health and Health Services for the United States Department of Health and Human Services\u27 Substance Abuse and Mental Health Services Administration, analyzes the devolution of the legal duties assumed by managed care organizations (MCOs) in their contracts with group purchasers. Specifically, this study examines the delegation of MCO contractual duties related to member care and services to individual network providers by comparing the language used in master contracts between purchasers and MCOs with the language contained in agreements with network health care providers who serve members covered under the master contract

    Proceedings of the 2014 A.S.P.E.N. Research Workshop

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    Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141886/1/jpen0167.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141886/2/jpen0167-sup-0001.pd

    Multivisceral intestinal transplantation: Surgical pathology

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    We report the diagnostic surgical pathology of two children who underwent multivisceral abdominal transplantation and survived for 1 month and 6 months. There is little relevant literature, and diagnostic criteria for the various clinical possibilities are not established; this is made more complicated by the simultaneous occurrence of more than one process. We based our interpretations on conventional histology, augmented with immunohistology, including HLA staining that distinguished graft from host cells in situ. In some instances functional analysis of T cells propagated from the same biopsies was available and was used to corroborate morphological interpretations. A wide spectrum of changes was encountered. Graft-versus-host disease, a prime concern before surgery, was not seen. Rejection was severe in 1 patient, not present in the other, and both had evidence of lymphoproliferative disease, which was related to Epstein-Barr virus. Bacterial translocation through the gut wall was also a feature in both children. This paper documents and illustrates the various diagnostic possibilities.. © 1989 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted

    A service-oriented admission control strategy for class-based IP networks

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    The clear trend toward the integration of current and emerging applications and services in the Internet launches new demands on service deployment and management. Distributed service-oriented traffic control mechanisms, operating with minimum impact on network performance, assume a crucial role as regards controlling services quality and network resources transparently and efficiently. In this paper, we describe and specify a lightweight distributed admission control (AC) model based on per-class monitoring feedback for ensuring the quality of distinct service levels in multiclass and multidomain environments. The model design, covering explicit and implicit AC, exhibits relevant properties that allow managing quality of service (QoS) and service-level specifications (SLSs) in multiservice IP networks in a flexible and scalable manner. These properties, stemming from the way service-dependent AC and on-line service performance monitoring are proposed and articulated in the model’s architecture and operation, allow a self-adaptive service and resource management, while abstracting from network core complexity and heterogeneity. A proof of concept is provided to illustrate the AC criteria ability in satisfying multiple service class commitments efficiently. The obtained results show that the self-adaptive behavior inherent to on-line measurement-based service management, combined with the established AC rules, is effective in controlling each class QoS and SLS commitments consistently

    Multipolar Interactions in the Anderson Lattice with Orbital Degeneracy

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    Microscopic investigation is performed for intersite multipolar interactions in the orbitally degenerate Anderson lattice, with CeB6_6 taken as an exemplary target. In addition to the f0f^0 intermediate state, f2f^2 Hund's-rule ground states are included as intermediate states for the interactions. The conduction-band states are taken as plane waves and the hybridization as spherically symmetric. The spatial dependences of multipolar interactions are given by the relative weight of partial wave components along the pair of sites. It is clarified how the the anisotropy arises in the interactions depending on the orbital degeneracy and the spatial configuration. The stability of the Γ5\Gamma_5 antiferro-quadrupole order in the phase II of CeB6_6 is consistent with our model. Moreover, the pseudo-dipole interactions follow a tendency required by the phenomenological model for the phase III.Comment: 30 pages, 4 figure

    Modular symbols in Iwasawa theory

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    This survey paper is focused on a connection between the geometry of GLd\mathrm{GL}_d and the arithmetic of GLd−1\mathrm{GL}_{d-1} over global fields, for integers d≥2d \ge 2. For d=2d = 2 over Q\mathbb{Q}, there is an explicit conjecture of the third author relating the geometry of modular curves and the arithmetic of cyclotomic fields, and it is proven in many instances by the work of the first two authors. The paper is divided into three parts: in the first, we explain the conjecture of the third author and the main result of the first two authors on it. In the second, we explain an analogous conjecture and result for d=2d = 2 over Fq(t)\mathbb{F}_q(t). In the third, we pose questions for general dd over the rationals, imaginary quadratic fields, and global function fields.Comment: 43 page
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