• Every day the American government, the United Nations, and other international institutions send people into non-English speaking, war-torn, and often minimally democratic countries struggling to cope with rising crime and disorder under a new regime. These assistance missions attempt to promote democratic law enforcement in devastated countries. But do these missions really facilitate the creation of effective policing? Renowned criminologist David H. Bayley here examines the prospects for the reform of police forces overseas as a means of encouraging the development of democratic governments. In doing so, he assesses obstacles for promoting democratic policing in a state-of-the-art review of all efforts to promote democratic reform since 1991. Changing the Guard offers an inside look at the achievements and limits of current American foreign assistance, outlining the nature and scope of the police assistance program and the agencies that provide it. Bayley concludes with recommendations for how police assistance could be improved in volatile countries across the world. This book is required reading as an instruction manual for building democratic policing overseas.

  • This book contains a compendium of 25 papers published since the 1970s dealing with pi and associated topics of mathematics and computer science.  The collection begins with a Foreword by Bruce Berndt. Each contribution is preceded by a brief summary of its content as well as a short key word list indicating how the content relates to others in the collection. The volume includes articles on actual computations of pi, articles on mathematical questions related to pi (e.g., "Is pi normal?"), articles presenting new and often amazing techniques for computing digits of pi (e.g., the "BBP" algorithm for pi, which permits one to compute an arbitrary binary digit of pi without needing to compute any of the digits that came before), papers presenting important fundamental mathematical results relating to pi, and papers presenting new, high-tech techniques for analyzing pi (i.e., new graphical techniques that permit one to visually see if pi and other numbers are "normal").  This volume is a companion to Pi: A Source Book whose third edition released in 2004.  The present collection begins with 2 papers from 1976, published by Eugene Salamin and Richard Brent, which describe "quadratically convergent" algorithms for pi and other basic mathematical functions, derived from some mathematical work of Gauss. Bailey and Borwein hold that these two papers constitute the beginning of the modern era of computational mathematics.  This time period (1970s) also corresponds with the introduction of high-performance computer systems (supercomputers), which since that time have increased relentlessly in power, by approximately a factor of 100,000,000, advancing roughly at the same rate as Moore's Law of semiconductor technology.  This book may be of interest to a wide range of mathematical readers; some articles cover more advanced research questions suitable for active researchers in the field, but several are highly accessible to undergraduate mathematics students.

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