2,040 research outputs found

    Medicare and GAAP: Understanding the Decision of the Sixth Circuit in \u3ci\u3eGuernsey Memorial Hospital v. Secretary of Health and Human Services\u3c/i\u3e

    Get PDF
    The Medicare Act entitles qualified providers to reimbursement for the reasonable cost of furnishing hospital services to Medicare beneficiaries. The Sixth Circuit\u27s decision in Guernsey Memorial Hospital demonstrates the tension between generally accepted accounting principles and Medicare reimbursement principles

    Response of Bose gases in time-dependent optical superlattices

    Full text link
    The dynamic response of ultracold Bose gases in one-dimensional optical lattices and superlattices is investigated based on exact numerical time evolutions in the framework of the Bose-Hubbard model. The system is excited by a temporal amplitude modulation of the lattice potential, as it was done in recent experiments. For regular lattice potentials, the dynamic signatures of the superfluid to Mott-insulator transition are studied and the position and the fine-structure of the resonances is explained by a linear response analysis. Using direct simulations and the perturbative analysis it is shown that in the presence of a two-colour superlattice the excitation spectrum changes significantly when going from the homogeneous Mott-insulator the quasi Bose-glass phase. A characteristic and experimentally accessible signature for the quasi Bose-glass is the appearance of low-lying resonances and a suppression of the dominant resonance of the Mott-insulator phase.Comment: 20 pages, 9 figures; added references and corrected typo

    Science and Engineering Serials: Issues and Challenges in the Electronic Environment

    Get PDF
    Pricing Issues: The Core Problem. Subscription Price Increases. Fluctuations in the Foreign Exchange Rate. ISI Impact Factors, Journal Quality, and Cost-Effectiveness. Questions of Content, Archiving, and Access.. Conclusion. Reference Notes

    Machine Learning for the Prediction of Converged Energies from Ab Initio Nuclear Structure Calculations

    Full text link
    The prediction of nuclear observables beyond the finite model spaces that are accessible through modern ab initio methods, such as the no-core shell model, pose a challenging task in nuclear structure theory. It requires reliable tools for the extrapolation of observables to infinite many-body Hilbert spaces along with reliable uncertainty estimates. In this work we present a universal machine learning tool capable of capturing observable-specific convergence patterns independent of nucleus and interaction. We show that, once trained on few-body systems, artificial neural networks can produce accurate predictions for a broad range of light nuclei. In particular, we discuss neural-network predictions of ground-state energies from no-core shell model calculations for 6Li, 12C and 16O based on training data for 2H, 3H and 4He and compare them to classical extrapolations.Comment: 7 pages, 5 figures, 1 tabl

    Pennsylvania Folklife Vol. 21, No. 4

    Get PDF
    • The Herr and Zeller Houses • Pennsylvania German Astronomy and Astrology II: The Moon • Travel Journals as a Folklife Research Tool: Impressions of the Pennsylvania Germans • My Interview with a Powwower • American Emigrants from the Territories of the Bishropric of Speyer • Emigrants to America from the Duchy of Zweibrucken • Funeral Customs: Folk-Cultural Questionnaire No. 24https://digitalcommons.ursinus.edu/pafolklifemag/1048/thumbnail.jp

    Effectiveness of postoperative radiotherapy after radical cystectomy for locally advanced bladder cancer

    Get PDF
    BACKGROUND: Local-regional failure (LF) for locally advanced bladder cancer (LABC) after radical cystectomy (RC) is common even with chemotherapy and is associated with high morbidity/mortality. Postoperative radiotherapy (PORT) can reduce LF and may enhance overall survival (OS) but has no defined role. We hypothesized that the addition of PORT would improve OS in LABC in a large nationwide oncology database. METHODS: We identified ≥ pT3pN0-3M0 LABC patients in the National Cancer Database diagnosed 2004-2014 who underwent RC ± PORT. OS was calculated using Kaplan-Meier and Cox proportional hazards regression modeling was used to identify predictors of OS. Propensity matching was performed to match RC patients who received PORT vs those who did not. RESULTS: 15,124 RC patients were identified with 512 (3.3%) receiving PORT. Median OS was 20.0 months (95% CI, 18.2-21.8) for PORT vs 20.8 months (95% CI, 20.3-21.3) for no PORT (P = 0.178). In multivariable analysis, PORT was independently associated with improved OS: hazard ratio 0.87 (95% CI, 0.78-0.97); P = 0.008. A one-to-three propensity match yielded 1,858 patients (24.9% receiving PORT and 75.1% without). In the propensity-matched cohort, median OS was 19.8 months (95% CI, 18.0-21.6) for PORT vs 16.9 months (95% CI, 15.6-18.1) for no PORT (P = 0.030). In the propensity-matched cohort of urothelial carcinoma patients (N = 1,460), PORT was associated with improved OS for pT4, pN+, and positive margins (P \u3c 0.01 all). CONCLUSION: In this observational cohort, PORT was associated with improved OS in LABC. While the data should be interpreted cautiously, these results lend support to the use of PORT in selected patients with LABC, regardless of histology. Prospective trials of PORT are warranted

    Bose-Fermi mixtures in 1D optical superlattices

    Full text link
    The zero temperature phase diagram of binary boson-fermion mixtures in two-colour superlattices is investigated. The eigenvalue problem associated with the Bose-Fermi-Hubbard Hamiltonian is solved using an exact numerical diagonalization technique, supplemented by an adaptive basis truncation scheme. The physically motivated basis truncation allows to access larger systems in a fully controlled and very flexible framework. Several experimentally relevant observables, such as the matter-wave interference pattern and the condensatefraction, are investigated in order to explore the rich phase diagram. At symmetric half filling a phase similar to the Mott-insulating phase in a commensurate purely bosonic system is identified and an analogy to recent experiments is pointed out. Furthermore a phase of complete localization of the bosonic species generated by the repulsive boson-fermion interaction is identified. These localized condensates are of a different nature than the genuine Bose-Einstein condensates in optical lattices.Comment: 18 pages, 9 figure

    Vol. 35, No. 3

    Get PDF
    A Primer on the Illinois Education-Based Funding for Student Success Act, by Robert Bloch, A. Lynn Himes, Terry L. Hodges, Mitch Roth, Barbara Erickson, and Jack Vrett Recent Developmentshttps://scholarship.kentlaw.iit.edu/iperr/1105/thumbnail.jp
    • …
    corecore