Bicycle or Unicycle? is a collection of 105 mathematical puzzles whose defining characteristic is the surprise encountered in their solutions. Solvers will be surprised, even occasionally shocked, at those solutions. The problems unfold into levels of depth and generality very unusual in the types of problems seen in contests. In contrast to contest problems, these are problems meant to be savored; many solutions, all beautifully explained, lead to unanswered research questions. At the same time, the mathematics necessary to understand the problems and their solutions is all at the undergraduate level. The puzzles will, nonetheless, appeal to professionals as well as to students and, in fact, to anyone who finds delight in an unexpected discovery. These problems were selected from the Macalester College Problem of the Week archive. The Macalester tradition of a weekly problem was started by Joseph Konhauser in 1968. In 1993 Stan Wagon assumed problem-generating duties. A previous book written by Wagon, Konhauser, and Dan Velleman, Which Way Did the Bicycle Go?, gathered problems from the first twenty-five years of the archive. The title problem in that collection was inspired by an error in logic made by Sherlock Holmes, who attempted to determine the direction of a bicycle from the tracks of its wheels. Here the title problem asks whether a bicycle track can always be distinguished from a unicycle track. You'll be surprised by the answer.
This book addresses the challenging tasks of verifying and debugging structurally complex multipliers. In the area of verification, the authors first investigate the challenges of Symbolic Computer Algebra (SCA)-based verification, when it comes to proving the correctness of multipliers. They then describe three techniques to improve and extend SCA: vanishing monomials removal, reverse engineering, and dynamic backward rewriting. This enables readers to verify a wide variety of multipliers, including highly complex and optimized industrial benchmarks. The authors also describe a complete debugging flow, including bug localization and fixing, to find the location of bugs in structurally complex multipliers and make corrections.
Adopting a balanced mix of theory, algorithms and practical design issues, this comprehensive volume explores cutting-edge applications in adaptive wireless communications and the implications these techniques have for future wireless network performance. Presenting practical concerns in the context of different strands from information theory, parameter estimation theory, array processing and wireless communication, the authors present a complete picture of the field. Topics covered include advanced multiple-antenna adaptive processing, ad hoc networking, MIMO, MAC protocols, space-time coding, cellular networks and cognitive radio, with the significance and effects of both internal and external interference a recurrent theme throughout. A broad, self-contained technical introduction to all the necessary mathematics, statistics, estimation theory and information theory is included, and topics are accompanied by a range of engaging end-of-chapter problems. With solutions available online, this is the perfect self-study resource for students of advanced wireless systems and wireless industry professionals.
A noncommercial protein sequencing instrument. Analysis of amino acid phenylthiohydantoins by gas chromatography. Advances in the gas chromatographic analysis of amino acid phenyl- and methyl-thiolhydantoins. Gas-liquid chromatography (GLC) of amino acid derivatives. Quantitative procedures for use with the Edman-Begg sequenator: partial sequences of two unusual immunoglobulin light chains, Rzf and Sac...
Toward what end does the U.S. government support science and technology? How do the legacies and institutions of the past constrain current efforts to restructure federal research policy? Not since the end of World War II have these questions been so pressing, as scientists and policymakers debate anew the desirability and purpose of a federal agenda for funding research. Probing the values that have become embodied in the postwar federal research establishment, Politics on the Endless Frontier clarifies the terms of these debates and reveals what is at stake in attempts to reorganize that establishment. Although it ended up as only one among a host of federal research policymaking agencies, the National Science Foundation was originally conceived as central to the federal research policymaking system. Kleinman's historical examination of the National Science Foundation exposes the sociological and political workings of the system, particularly the way in which a small group of elite scientists shaped the policymaking process and defined the foundation's structure and future. Beginning with Vannevar Bush's 1945 manifesto The Endless Frontier, Kleinman explores elite and populist visions for a postwar research policy agency and shows how the structure of the American state led to the establishment of a fragmented and uncoordinated system for federal research policymaking. His book concludes with an analysis of recent efforts to reorient research policy and to remake federal policymaking institutions in light of the current "crisis" of economic competitiveness. A particularly timely study, Politics on the Endless Frontier will be of interest to historians and sociologists of science and technology and to science policy analysts.
Wireless Coexistence Explore a comprehensive review of the motivation for wireless coexistence and the standards and technology used to achieve it Wireless Coexistence: Standards, Challenges, and Intelligent Solutions delivers a thorough exploration of wireless ecosystems sharing the spectrum, including the multiple standards and key requirements driving the current state of wireless technology. The book surveys several standards, including IEEE 802.22, 802.15.2, and 802.19.1 and expands upon recent advances in machine learning and artificial intelligence to demonstrate how these technologies might be used to meet or exceed the challenges of wireless coexistence. The text discusses cognitive radio in the context of spectrum coexistence and provides a comparison and assessment of using artificial intelligence in place of, or in addition to, current techniques. It also considers applications to communication theory, learning algorithms for passive wireless coexistence strategies, spectrum situational awareness, and active wireless coexistence strategies. With the necessity of spectrum sharing and the scarcity of unused spectrum on the rise, the standardization of wireless coexistence becomes more important with each passing day. Readers will learn about the challenges posed by shrinking wireless real estate and from the inclusion of topics like: A thorough introduction to the concept of, and motivation for, wireless coexistence, including congestion and interference, policies, and regulations An exploration of different wireless coexistence standards, including the need for standardization and various protocols, including 802.22, 802.15.2, 802.19.1, P1900, and 3GPP Release 13/14 LAA A discussion of the applications of communication theory, including primary user strategies, primary multi-user protocols, and successive interference cancellation A treatment of concepts in learning algorithms Perfect for scientists, researchers, engineers, developers, educators, and administrators working in the area of wireless networks, Wireless Coexistence: Standards, Challenges, and Intelligent Solutions will also earn a place in the libraries of graduate students studying wireless networks and seeking a one-stop reference for subjects related to wireless coexistence standards.
This issue of Critical Care Clinics focuses on Burn Resuscitation in the ICU. Articles include: The Physiologic Basis of Burn Shock and the Need for Aggressive Fluid Resuscitation; The Use of Colloid in Burn Resuscitation; Monitoring and Endpoints of Burn Resuscitation; Vitamin C in Burn Resuscitation; Pediatric Burn Resuscitation; Burn resuscitation in the Austere Environment; Failed Burn resuscitation; and more!
This book presents efficient visualization techniques, a prerequisite for the interactive exploration of complex data sets. High performance is demonstrated as a process of devising algorithms for the fast graphics processing units (GPUs) of modern graphics hardware. Coverage includes parallelization on cluster computers with several GPUs, adaptive rendering methods, and non-photorealistic rendering techniques for visualization.
The microelectrode technique is today the most widely used method in electrophy siology. Microelectrodes offer a unique approach to measurements of electrical pa rameters and ion activities of single cells. Several important breakthroughs in trans port physiology have arisen from microelectrode studies. Undoubtedly, there is a progressively wide-spread use of conventional and ion-selective microelectrodes. Due to their particular dimension and properties micro electrodes are exclusive ly applied to measurements on living matter. This must have many consequences to my thoughts on experiments with microelectrodes. In this book, my concern is fo cussing on the description of an intracellular method that should lead to reliable in formation on cellular parameters. The methodical basis for any meaningful applica tion is treated extensively. However, technical perfection and accurate results are not the only concern when working on animals and human beings. Rather, my thoughts are governed by the intellectual and moral mastery of the experimental ap proach on living subjects. A measurement with microelectrodes usually necessitates the sacrifice of an ani mal. This is an immense fact, and means that the knowledge gained by the experi ment must justify the death of a living subject.
Now more streamlined and focused than ever before, the 6th edition of CT and MRI of the Whole Body is a definitive reference that provides you with an enhanced understanding of advances in CT and MR imaging, delivered by a new team of international associate editors. Perfect for radiologists who need a comprehensive reference while working on difficult cases, it presents a complete yet concise overview of imaging applications, findings, and interpretation in every anatomic area. The new edition of this classic reference — released in its 40th year in print — is a must-have resource, now brought fully up to date for today’s radiology practice. Includes both MR and CT imaging applications, allowing you to view correlated images for all areas of the body. Coverage of interventional procedures helps you apply image-guided techniques. Includes clinical manifestations of each disease with cancer staging integrated throughout. Over 5,200 high quality CT, MR, and hybrid technology images in one definitive reference. For the radiologist who needs information on the latest cutting-edge techniques in rapidly changing imaging technologies, such as CT, MRI, and PET/CT, and for the resident who needs a comprehensive resource that gives a broad overview of CT and MRI capabilities. Brand-new team of new international associate editors provides a unique global perspective on the use of CT and MRI across the world. Completely revised in a new, more succinct presentation without redundancies for faster access to critical content. Vastly expanded section on new MRI and CT technology keeps you current with continuously evolving innovations.
Sabiston Textbook of Surgery is your ultimate foundation for confident surgical decision making. Covering the very latest science and data affecting your treatment planning, this esteemed medical reference helps you make the most informed choices so you can ensure the best outcome for every patient. Consult it on the go with online access at expertconsult.com, and get regular updates on timely new findings and advances. Overcome tough challenges, manage unusual situations, and avoid complications with the most trusted advice in your field. Prepare for tests and exams with review questions and answers online. Keep up with the very latest developments concerning abdominal wall reconstruction, tumor immunology and immunotherapy, peripheral vascular disease, regenerative medicine, liver transplantation, kidney and pancreas transplantation, small bowel transplantation, the continually expanding role of minimally invasive and robotic surgery, and many other rapidly evolving areas. Weigh your options by reviewing the most recent outcomes data and references to the most current literature.
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. A practical, visual, authoritative quick-reference guide to mastering echocardiography The most efficient and thorough way to learn echocardiography is visually. By seeing and comparing different variations of important echo findings, you shorten the learning process and build retention at the same time. Covering the essential techniques, standards, and cardiac disorders you need to know, Practical Echocardiography for Cardiac Sonographers is an innovative guide that takes you step by step through the scanning process in different disorders, helps you accurately interpret and clinically apply echocardiographic information, describes the physics of ultrasound in easy-to-understand language, and covers common and rare relevant cardiac conditions. Formatted in a way that makes finding the right answers quick and easy, Echocardiography for Cardiac Sonographers delivers comprehensive fully rounded, interactive education that will get you up to speed on this critically important discipline in no time. This comprehensive guide covers: Heart Failure Coronary Artery Disease Aortic Valve Disease Mitral valve Disease Prosthetic Valves Hypertrophic Cardiomyopathy Pericardial Disease Endocarditis Cardiac Tumors and Masses Pulmonary Disorders Tricuspid and Pulmonic Valves Aorta and Congenital Heart Disorders Stroke
The vast majority of Americans obtain credit at some point in their lives. Over 75 percent of Americans have at least one credit card. Credit also includes home mortgages, car loans, and student loans. This book looks at the basic rights with respect to obtaining and protecting credit.
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