Book Reviews

Law-Making in the International Civil Aviation Organization By Thomas Buergenthal Syracuse University Press, 1969. Pp. viii,247. $10.50. reviewer: Samuel A. Bleicher =============================== The Role of Psychiatry in Law By Manfred S. Guttmacher, M.D. Springfield: Charles C. Thomas, 1968. Pp. ix, 170.$7.50. reviewer: Nat. T. Winston, Jr., M.D. ==================================== The Development of Political Attitudes in Children By Robert D. Hess & Judith V. Torney Chicago: Aldine Publishing Co., 1967. Pp. xviii, 288. $9.75. reviewer: Dan B. Germa

The Kolmogorov-Smirnov test and its use for the identification of fireball fragmentation

We propose an application of the Kolmogorov-Smirnov test for rapidity distributions of individual events in ultrarelativistic heavy ion collisions. The test is particularly suitable to recognise non-statistical differences between the events. Thus when applied to a narrow centrality class it could indicate differences between events which would not be expected if all events evolve according to the same scenario. In particular, as an example we assume here a possible fragmentation of the fireball into smaller pieces at the quark/hadron phase transition. Quantitative studies are performed with a Monte Carlo model capable of simulating such a distribution of hadrons. We conclude that the Kolmogorov-Smirnov test is a very powerful tool for the identification of the fragmentation process.Comment: 9 pages, 10 figure

CovidCounties is an interactive real time tracker of the COVID19 pandemic at the level of US counties.

Management of the COVID-19 pandemic has proven to be a significant challenge to policy makers. This is in large part due to uneven reporting and the absence of open-access visualization tools to present local trends and infer healthcare needs. Here we report the development of CovidCounties.org, an interactive web application that depicts daily disease trends at the level of US counties using time series plots and maps. This application is accompanied by a manually curated dataset that catalogs all major public policy actions made at the state-level, as well as technical validation of the primary data. Finally, the underlying code for the site is also provided as open source, enabling others to validate and learn from this work