X iv :m at h/ 06 10 74 2v 2 [ m at h. C O ] 2 8 O ct 2 00 6 Clustering of spectra and fractals of regular graphs V. Ejov, J.A. Filar, S.K. Lucas, P. Zograf 1 School of Mathematics and Statistics, University of South Australia, Mawson Lakes SA 5095 Australia 2 Department of Mathematics and Statistics, James Madison University, Harrisonburg, VA 22807, USA 3 St. Petersburg Department of Steklov In...

M. Goutx, C. Guigue, D. Aritio, J. Ghiglione, M. Pujo-Pay, and V. Andersen CNRS-INSU UMR 6117, Laboratoire de Microbiologie, Géochimie et Ecologie Marines, Observatoire du Centre d’Océanologie de Marseille, Campus de Luminy, 13288 Marseille Cedex 09, France CNRS, UMR 7621, Laboratoire d’Océanographie Biologique de Banyuls, Avenue Fontaulé, BP44, 66650 Banyuls sur mer, France UPMC, Univ. Paris 0...

Severe non-immune mediated haemolytic anaemia (HA) rarely occurs in acute viral hepatitis, unless patients have underlying red cell enzyme abnormalities or pre-existing liver disease. We report such a case and provide a summary of other available cases to date. Overall, young and fit patients suffering from acute viral hepatitis seem to be affected. Several viral subtypes have been associated, ...

PURPOSE To examine the effectiveness of threshold and polarized models in the training organization of Chinese top-level sprint speed skaters using a 2-y quasi-experimental design. METHODS Two years (2004-05 and 2005-06 seasons) of the Chinese national speed-skating team's daily training load (N = 9; 5 men, 23.6 ± 1.7 y, weight 76.6 ± 4.1 kg, competitive experience 5.0 ± 0.8 y, 500-m time 35....

A review of previous analyses of labor supply effects of Social Security Disability Insurance (DI) concludes that estimates of labor supply effects and net social costs are upward biased because they ignore interactions between DI and other insurances. A model of optimal insurance, postinjury accommodations, and labor supply shows that reduction in labor supply and increase in consumption when ...

PURPOSE The purpose of this study was to determine if Yo-Yo Intermittent Recovery level 2 (Yo-Yo IR2) and the number of interchange rotations affected the match activity profile of elite Australian footballers. METHOD Fifteen elite Australian footballers completed the Yo-Yo IR2 before the beginning of the season and played across 22 matches in which match activity profiles were measured via m...

We compute the hyperfine splitting in a heavy quarkonium composed of different flavors in next-to-leading logarithmic approximation using the nonrelativistic renormalization group. We predict the mass difference of the vector and pseudoscalar charmbottom mesons to be M(B c )−M(Bc) = 65± 24 (th) +19 −16 (δαs) MeV. PACS numbers: 12.38.Bx, 14.65.Fy, 14.65.Ha

We define the discrete norm of a complex m× n matrix A by ‖A‖∆ := max 06=ξ∈{0,1}n ‖Aξ‖ ‖ξ‖ , and show that c √ log h(A) + 1 ‖A‖ ≤ ‖A‖∆ ≤ ‖A‖, where c > 0 is an explicitly indicated absolute constant, h(A) = √ ‖A‖1‖A‖∞/‖A‖, and ‖A‖1, ‖A‖∞, and ‖A‖ = ‖A‖2 are the induced operator norms of A. Similarly, for the discrete Rayleigh norm ‖A‖P := max 06=ξ∈{0,1} 06=η∈{0,1} |ξAη| ‖ξ‖‖η‖ we prove the esti...

Nr. 08 06 H. Fernau Parameterized Algorithms for d-HITTING Set: the Weightes Case http://www.mathematik.uni-trier.de/tf/08_06.pdf Nr. 08 05 H. Fernau, D. Raible Exact Algorithms for Maximum Acyclic Subgraph on a Superclass of Cubic Graphs http://www.mathematik.uni-trier.de/tf/08_05.pdf Nr. 08 04 R. Tichatschke Auf den Schultern von Giganten: Zur Geschichte der Mathematischen Optimierung http://...