Methods We did a population-based data registry analysis. From the ambulance database for the county of Sør-Trøndelag data from the years 1997–2007 was retrieved. Missions were stratified by year and classification of urgency (ordinary, urgent and acute). Further, we calculated gender distribution and age averages for each year. Results 257 089 ambulance missions were identified. Number of miss...

† Stimulating comments of and discussions with Jeroen Weesie and other members of our Utrecht group " Cooperation in Social and Economic Relations " are gratefully acknowledged. We also acknowledge helpful comments from participants of the Russell Sage Foundation " Rational Choice Social Research Workshop " and specifically from our discussant, Simon Gächter. The Management of Matches " and und...

We present the X-ray properties of a sample of 17 radio sources observed with the Chandra X-ray Observatory as part of a project aimed at studying the X-ray emission from their radio jets. In this paper, we concentrate on the X-ray properties of the unresolved cores. The sample includes 16 quasars (11 core-dominated and 5 lobe-dominated) in the redshift range z=0.30–1.96, and one low-power radi...

We give a hypergeometric proof involving a family of 2-variable Krawtchouk polynomials that were obtained earlier by Hoare and Rahman [SIGMA 4 (2008), 089, 18 pages] as a limit of the 9− j symbols of quantum angular momentum theory, and shown to be eigenfunctions of the transition probability kernel corresponding to a “poker dice” type probability model. The proof in this paper derives and make...