Static quarks with improved statistical precision

We present a numerical study for different discretisations of the static action, concerning cut-off effects and the growth of statistical errors with Euclidean time. An error reduction by an order of magnitude can be obtained with respect to the Eichten-Hill action, for time separations beyond 1.3 fm, keeping discretization errors small. The best actions lead to a big improvement on the precision of the quark mass Mb and F_Bs in the static approximation.Comment: 3 pages, 4 figures, Lattice2003(heavy

Towards a precision computation of f_Bs in quenched QCD

We present a computation of the decay constant f_Bs in quenched QCD. Our strategy is to combine new precise data from the static approximation with an interpolation of the decay constant around the charm quark mass region. This computation is the first step in demonstrating the feasability of a strategy for f_B in full QCD. The continuum limits in the static theory and at finite mass are taken separately and will be further improved.Comment: Lattice2003(heavy), 3 pages, 2 figure

Smart Antenna Terminal - SANTANA

The demand for broadband data communication will increase rapidly in the next years. Satellite systems offer unique possibilities to connect professional mobile users to broadband data networks and services. The targeted markets are users on aircraft, ships and cars. High bandwidths must be utilized to realize the projected high data rates. Therefore, the attention of system providers will eventually move to systems operating in the Ka-band. The terminal antennas must meet complex requirements like high antenna gain, fast target acquisition and tracking, interferer cancellation and handling of several satellites at the same time. Here, smart antenna terminals employing digital beamforming are most promising. These antennas are very flexible and can be reconfigured easily to new mission profiles. The goal of the project Smart Antenna Terminal was the development, realization and test of demonstrators of broadband terminal antennas using digital beamforming in the Ka-band. These demonstrators can be used as building blocks for larger terminal antennas

Evaluation of the impact of guideline communication from the Centers for Disease Control and Prevention and the Centers for Medicare and Medicaid Services among US healthcare providers: COVID‐19 prevention counselling guidance

Abstract Aim To evaluate healthcare provider awareness and uptake of the Centers for Medicare & Medicaid Services (CMS) billing for coronavirus disease 2019 (COVID‐19) prevention counselling and the delivery of prevention counselling to patients awaiting severe acute respiratory syndrome coronavirus 2 test results. Design Cross sectional survey of US‐based healthcare providers in February 2021. Methods Analysis of associations with healthcare provider‐reported awareness of CMS prevention counselling guidance and billing with provider type, specialty, and work setting. Results A total of 1919 healthcare providers responded to the survey. Overall, 38% (726/1919) of providers reported awareness of available CMS reimbursement for COVID‐19 patient counselling and 29% (465/1614) of CMS billing‐eligible providers reported billing for this counselling. Among physicians, those aware of CMS guidance were significantly more likely to bill (58%) versus those unaware (10%). Among RNSights respondents eligible for CMS billing (n = 114), 31% of those aware of the guidance reported billing as compared to 0% of those not aware