Feds charge 2 dozen in billion dollar Medicare brace scam

Federal authorities say they've busted a $1.2 billion Medicare scam that peddled unneeded orthopedic braces via foreign call centers
Source: ABC News: Health - Category: Consumer Health News Tags: Health Source Type: news

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Publication date: Available online 16 April 2019Source: Statistics &Probability LettersAuthor(s): Thomas Beekenkamp, Tim HulshofAbstractIn this note we study the phase transition for percolation on quasi-transitive graphs with quasi-transitively inhomogeneous edge-retention probabilities. A quasi-transitive graph is an infinite graph with finitely many different “types” of edges and vertices. We prove that the transition is sharp almost everywhere, i.e., that in the subcritical regime the expected cluster size is finite, and that in the subcritical regime the probability of the one-arm event decays exponent...
Source: Statistics and Probability Letters - Category: Statistics Source Type: research
This study describes the preparation of micro-chip energetic initiators containing Al/CuO RMFs as an interlayer between two Al electrical contact pads that are prepared using an image reversal lift-off process and the magnetron sputtering technology. This design enables the direct transfer of current from the contact pads to Al/CuO RMFs, which results in fast ignition (less than 1.0 μs) and produces luminous flame ball that spread over a wide area (maximum flame area of 13.8 mm2). A metal–interlayer–metal (MIM) structured initiator will not be fired until the external voltage has exceeded the breakdow...
Source: Sensors and Actuators A: Physical - Category: Physics Source Type: research
Publication date: Available online 16 April 2019Source: Sensors and Actuators A: PhysicalAuthor(s): Fuqin Sun, Yang Gu, Yudong Cao, Qifeng Lu, Yuanyuan Bai, Lianhui Li, Mingming Hao, Chunyan Qu, Shuqi Wang, Lin Liu, Tie Li, Ting ZhangAbstractA novel handwriting identification technique, consisting of a flexible piezo-resistive pressure sensor with micro-pyramid structures and a Dynamic-Time-Warping algorithm, was presented in this paper. Real-time dynamic pressure was recorded by the piezo-resistive pressure sensors and similarities of characters written by different volunteers were evaluated using the Dynamic-Time-Warping...
Source: Sensors and Actuators A: Physical - Category: Physics Source Type: research
Publication date: June 2019Source: Results in Physics, Volume 13Author(s): Liguo Chen, Liangui Yang, Ruigang Zhang, Jifeng CuiAbstractWe investigate a new higher-dimensional nonlinear dynamics model to describe the generation and evolution of Rossby waves. We derive a generalized (2 + 1)-dimensional modified Korteweg-de Vries (mKdV)-Burgers equation by considering the quasi-geostrophic potential vorticity equation under the generalized β approximation with dissipation and external source in barotropic fluids, and by utilizing multiple scales and the perturbation expansion method. Qualitative analysis yields that t...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: June 2019Source: Results in Physics, Volume 13Author(s): Yuan Zhou, Ying Chen, Dongwen Zhang, Guobao Jiang, Lulu Wang, Fangrong HuAbstractIn the optical parametric amplifier (OPA) process, the phase of the pump is transmitted to the amplified signal due to the spatial walk-off effect and/or a temporal group velocity mismatch (GVM) effect between coherent light waves. As a result, the quality of amplified signal will be reduced by the phase distortion and variation of beam equality of the pump pulse. By using a pair of OPAs, the signal and idler are chosen as seeding lights in the front and back stages, re...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: August 2019Source: Radiation Physics and Chemistry, Volume 161Author(s): Frederick Backler, Gregory J. Wilson, Feng WangAbstractRadiation is energy travelling through space. Sunlight radiation such as ultraviolet (UV) radiation are higher-energy radiation which are used in medicine and energy industry such as dye sensitized solar cells (DSSCs). We recently designed new Ru-complexes through novel ligands based on a recently synthesised high performance dye, i.e. [(η6-p-cymene)Ru(4,4′,5,5′-H4tcbpy)Cl]Cl [1] (A as L1-Ru-L2) for applications in DSSCs. Two electron rich top-ligands, η6-N, N...
Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
Publication date: Available online 16 April 2019Source: Radiation Physics and ChemistryAuthor(s): T. Rivera-Montalvo, E.S. Uruchurtu-ChavarínAbstractThe International Commission on Radiological Protection reviewed its recommendation concerning the equivalent dose limit for the dose limits for occupationally exposed persons in a year. This limit was approved and written down in the IAEA (International Atomic Energy Agency) BSS (Basic Safety Standard) of July 2014. For that reason, in this work scattered radiation from fluoroscopy X-ray equipment on eye lens, and whole body dose was determined. For scattered radiation...
Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
This study aims to apply the CFD technique for studying the effect of variations in the ventilation rate on the distribution pattern of the 220Rn concentration in a thoron test house. Experimentally measured 220Rn flux from the surfaces of the experimental test house is used as input for the CFD simulations. Ventilation rate is varied from 0.1 h−1 to 9.0 h−1 and the simulated results of velocity and 220Rn concentration profile for the entire test domain are interpreted. It is observed that the increase of ventilation rate leads to the flow induced turbulence enhancing the mixing of 220Rn in indoor air. Results ...
Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
Publication date: Available online 16 April 2019Source: Radiation Physics and ChemistryAuthor(s): M. Abuzaid, A. Abdelrazig, A. Sulieman, M. Alkhorayef, E. Babikir, B. Alonazi, D. BradleyAbstractSuccessful diagnostic and clinical outcomes in use of interventional cardiac imaging procedures make them strong choices in dealing with cardiovascular disease. Interventional procedures in developing countries are now growing markedly, increasing with the availability of equipment and trained staff. Present study in Sudan has examined pediatric radiation doses during Diagnostic Coronary Angiography (DCA) and Percutaneous Intervent...
Source: Radiation Physics and Chemistry - Category: Physics Source Type: research
Publication date: Available online 16 April 2019Source: Physics of the Dark UniverseAuthor(s): C.J.A.P. Martins, M. Vila MiñanaAbstractTests of the stability of nature’s fundamental constants are one of the cornerstones of the ongoing search for the new physics which is required to explain the recent acceleration of the universe. The two main settings for these tests are high-resolution spectroscopy of astrophysical systems (mainly in low-density absorption clouds along the line of sight of bright quasars) and laboratory comparisons of pairs of atomic clocks. Here we use standard chi-square techniques to perfo...
Source: Physics of the Dark Universe - Category: Physics Source Type: research
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