Cosmic rays studied with a hybrid high school detector array

The LORUN/NAHSA system is a pathfinder for hybrid cosmic ray research combined with education and outreach in the field of astro-particle physics. Particle detectors and radio antennae were mainly setup by students and placed on public buildings. After fully digital data acquisition, coincidence detections were selected. Three candidate events confirmed a working prototype, which can be multiplied to extend further particle detector arrays on high schools.Comment: 10 pages, 6 figures. Nigl, A., Timmermans, C., Schellart, P., Kuijpers, J., Falcke, H., Horneffer, A., de Vos, C. M., Koopman, Y., Pepping, H. J., Schoonderbeek, G., Cosmic rays studied with a hybrid high school detector array, Europhysics News (EPN), Vol. 38, No. 5, accepted on 22/08/200

Chronic kidney disease in patients with cardiac rhythm disturbances or implantable electrical devices: clinical significance and implications for decision making-a position paper of the European Heart Rhythm Association endorsed by the Heart Rhythm Society and the Asia Pacific Heart Rhythm Society.

none13siNo abstract availableopenBoriani, G; Savelieva, I; Dan, Ga; Deharo, Jc; Ferro, C; Israel, Cw; Lane, Da; La Manna, G; Morton, J; Mitjans, Am; Vos, Ma; Turakhia, Mp; Lip, GyBoriani, G; Savelieva, I; Dan, Ga; Deharo, Jc; Ferro, C; Israel, Cw; Lane, Da; La Manna, G; Morton, J; Mitjans, Am; Vos, Ma; Turakhia, Mp; Lip, G

Equal efficacy of clopidogrel versus ticagrelor as monotherapy in peripheral artery disease

A critical appraisal and clinical application of Hiatt H, Fowkes G, Heizer G, et al. Ticagrelor versus clopidogrel in symptomatic peripheral artery disease. N Engl J Med. 2017;376:32-40. doi: 10.1056/NEJMoa1611688

Victivallis vadensis gen. nov., sp. nov., a sugar-fermenting anaerobe from human faeces

A novel strictly anaerobic, cellobiose-degrading bacterium, strain Cello, was isolated from a human faecal sample by combining enrichments in liquid and soft-agar basal media. A noteworthy characteristic was its inability to grow on normal agar plates and in roll tubes. The cells were coccus shaped and non-motile, with an extracellular slime layer. Growth of strain Cello T occurred between 20 and 40 degreesC, with optimal growth at 37 degreesC. The pH range for growth was 5-7-5 with an optimum at 6-5. In pure culture, strain Cello T could only grow on a variety of sugars. Glucose was converted to acetate, ethanol and H-2. The doubling time on glucose was 0.5 h. In a syntrophic co-culture with Methanospirillum hungatei strain JF-1(T), strain Cello(T) converted glucose to acetate and H-2. The G+C content was 59.2 mol%. 16S rDNA analysis revealed that the closest relatives of strain Cello(T) were two uncultured bacteria from anaerobic digesters, both with 94% 16S rDNA sequence similarity. The closest cultured representatives belong to genera of the bacterial division 'Verrucomicrobia'. The name Victivallis vadensis gen. nov., sp. nov. is proposed for strain Cello(T) (=DSM 14823(T) =ATCC BAA-548(T))

A Lanczos Method for Approximating Composite Functions

We seek to approximate a composite function h(x) = g(f(x)) with a global polynomial. The standard approach chooses points x in the domain of f and computes h(x) at each point, which requires an evaluation of f and an evaluation of g. We present a Lanczos-based procedure that implicitly approximates g with a polynomial of f. By constructing a quadrature rule for the density function of f, we can approximate h(x) using many fewer evaluations of g. The savings is particularly dramatic when g is much more expensive than f or the dimension of x is large. We demonstrate this procedure with two numerical examples: (i) an exponential function composed with a rational function and (ii) a Navier-Stokes model of fluid flow with a scalar input parameter that depends on multiple physical quantities