This one-of-a-kind new resource presents cognitive radio from an antenna design perspective and introduces the concept of cognitive radio as a protocol that benefits from under-utilized regions of the spectrum. This book covers topics that govern the operation of a cognitive radio and discusses the use of reconfigurable antennas, reconfigurable filtennas, and MIMO antennas for cognitive radio. The analysis and design of different antenna systems are presented, compared and evaluated. New approaches to improve spectrum efficiency are explored by demonstrating how to design software controlled cognitive radio antenna systems. This new resource shows how to communicate using either interweave or underlay cognitive radio and demonstrates the benefits of designing appropriate sensing and communicating antennas. The first part of the book introduces the basic concept of cognitive radio and discusses the difference between cognitive radio and software defined radio from the RF system 's perspective. The second part of the book discusses the main antenna design requirements, procedures and challenges for cognitive radio. The third part of the book introduces new trends in cognitive radio implementation such as the implementation of MIMO antennas on cognitive radio, the use of machine learning techniques to optimize the performance of a cognitive radio environment, and the implementation of cognitive radar and cognitive radio in space.
This lecture discusses the use of graph models to represent reconfigurable antennas. The rise of antennas that adapt to their environment and change their operation based on the user's request hasn't been met with clear design guidelines. There is a need to propose some rules for the optimization of any reconfigurable antenna design and performance. Since reconfigurable antennas are seen as a collection of self-organizing parts, graph models can be introduced to relate each possible topology to a corresponding electromagnetic performance in terms of achieving a characteristic frequency of operation, impedance, and polarization. These models help designers understand reconfigurable antenna structures and enhance their functionality since they transform antennas from bulky devices into mathematical and software accessible models. The use of graphs facilitates the software control and cognition ability of reconfigurable antennas while optimizing their performance. This lecture also discusses the reduction of redundancy, complexity and reliability of reconfigurable antennas and reconfigurable antenna arrays. The full analysis of these parameters allows a better reconfigurable antenna implementation in wireless and space communications platforms. The use of graph models to reduce the complexity while preserving the reliability of reconfigurable antennas allow a better incorporation in applications such as cognitive radio, MIMO, satellite communications, and personal communication systems. A swifter response time is achieved with less cost and losses. This lecture is written for individuals who wish to venture into the field of reconfigurable antennas, with a little prior experience in this area, and learn how graph rules and theory, mainly used in the field of computer science, networking, and control systems can be applied to electromagnetic structures. This lecture will walk the reader through a design and analysis process of reconfigurable antennas using graph models with a practical and theoretical outlook.
Brunner and Suddarth’s Canadian Textbook of Medical-Surgical Nursing is a student-friendly text with an easy-to-read and comprehend Nursing Care Plan focus and a distinct Canadian focus.
Nelson Textbook of Pediatrics has been the world’s most trusted pediatrics resource for nearly 75 years. Drs. Robert Kliegman, Bonita Stanton, Richard Behrman, and two new editors—Drs. Joseph St. Geme and Nina Schor—continue to provide the most authoritative coverage of the best approaches to care. This streamlined new edition covers the latest on genetics, neurology, infectious disease, melamine poisoning, sexual identity and adolescent homosexuality, psychosis associated with epilepsy, and more. Understand the principles of therapy and which drugs and dosages to prescribe for every disease. Locate key content easily and identify clinical conditions quickly thanks to a full-color design and full-color photographs. Access the fully searchable text online at www.expertconsult.com, along with abundant case studies, new references and journal articles, Clinics articles, and exclusive web-only content. Stay current on recent developments and hot topics such as melamine poisoning, long-term mechanical ventilation in the acutely ill child, sexual identity and adolescent homosexuality, age-specific behavior disturbances, and psychosis associated with epilepsy. Tap into substantially enhanced content with world-leading clinical and research expertise from two new editors—Joseph St. Geme, III, MD and Nina Schor, MD—who contribute on the key subspecialties, including pediatric infectious disease and pediatric neurology. Manage the transition to adult healthcare for children with chronic diseases through discussions of the overall health needs of patients with congenital heart defects, diabetes, and cystic fibrosis. Recognize, diagnose, and manage genetic conditions more effectively using an expanded section that covers these diseases, disorders, and syndromes extensively. Find information on chronic and common dermatologic problems more easily with a more intuitive reorganization of the section.
Critical Care: A Problem-Based Learning Approach provides a comprehensive review of the dynamic and ever-changing field of critical care. Its problem-based format incorporates a vast pool of practical, ABA board-exam-style multiple-choice questions for self-assessment, and is an ideal resource for exam preparation as well as ongoing clinical education among trainees and clinicians. Each of its 35 case-based chapters is accompanied by questions and answers, accessible online in a full practice exam. The cases presented are unique, as each chapter begins with a case description, usually a compilation of several actual cases; it then branches out through case-based questions, to increasingly complex situations. This structure is designed to create an authentic experience that mirrors that of working through the nuances of a complicated clinical scenario. The discussion sections that follow offer a comprehensive approach to the chapter's subject matter, thus creating a modern, complete, and up-to-date medical review of that topic.
Now completely revised to bring you up to date with the latest advances in the field, Critical Care Medicine: Principles of Diagnosis and Management in the Adult, 5th Edition, delivers expert, practical guidance on virtually any clinical scenario you may encounter in the ICU. Designed for intensivists, critical care and pulmonology residents, fellows, practicing physicians, and nurse practitioners, this highly regarded text is clinically focused and easy to reference. Led by Drs. Joseph Parrillo and Phillip Dellinger, the 5th Edition introduces numerous new authors who lend a fresh perspective and contribute their expertise to that of hundreds of top authorities in the field. - Includes new chapters on current applications of bedside ultrasound in the ICU, both diagnostic and procedural; mechanical assist devices; and extra-corporeal membrane oxygenation (ECMO). - Contains new administrative chapters that provide important information on performance improvement and quality, length of stay, operations, working with the Joint Commission, and more. - Features new videos and images that provide visual guidance and clarify complex topics. - Keeps you up to date with expanded chapters on echocardiography in the ICU and valvular heart disease, including TAVR. - Includes separate chapters on mechanical ventilation of obstructive airway disease and acute respiratory distress syndrome (ARDS) – including the many recent changes in approach to positive end expiratory pressure setting in ARDS. - Covers key topics such as patient-ventilator synchrony and non-invasive ventilation for treating chronic obstructive pulmonary disease patients with acute respiratory failure. - Reflects the recent literature and guidance on amount of fluids, type of fluid, vasopressor selection, mean arterial pressure target, and decision on steroid use in septic shock. - Provides questions and answers in every chapter, perfect for self-assessment and review. - Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.
A clear, engaging writing style, hundreds of full-color images, and new information throughout make Volpe's Neurology of the Newborn, 6th Edition, an indispensable resource for those who provide care for neonates with neurological conditions. World authority Dr. Joseph Volpe, along with Dr. Terrie E. Inder and other distinguished editors, continue the unparalleled clarity and guidance you've come to expect from the leading reference in the field – keeping you up to date with today's latest advances in diagnosis and management, as well as the many scientific and technological advances that are revolutionizing neonatal neurology. - Provides comprehensive coverage of neonatal neurology, solely written by the field's founding expert, Dr. Joseph Volpe - for a masterful, cohesive source of answers to any question that arises in your practice. - Focuses on clinical evaluation and management, while also examining the many scientific and technological advances that are revolutionizing neonatal neurology. - Organizes disease-focused chapters by affected body region for ease of reference. - Features a brand new, full-color design with hundreds of new figures, tables, algorithms, and micrographs. - Includes two entirely new chapters: Neurodevelopmental Follow-Up and Stroke in the Newborn; a new section on Neonatal Seizures; and an extensively expanded section on Hypoxic-Ischemia and Other Disorders. - Showcases the experience and knowledge of a new editorial team, led by Dr. Joseph Volpe and Dr. Terrie E. Inder, Chair of the Department of Pediatric Newborn Medicine at Brigham and Women's Hospital, all of whom bring a wealth of insight to this classic text. - Offers comprehensive updates from cover to cover to reflect all of the latest information regarding the development of the neural tube; prosencephalic development; congenital hydrocephalus; cerebellar hemorrhage; neuromuscular disorders and genetic testing; and much more. - Uses an improved organization to enhance navigation. - Expert ConsultTM eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, Q&As, and references from the book on a variety of devices.
Learn the essential principles of pharmacotherapy and how they apply to today’s healthcare. Content derived from Pharmacotherapy: A Pathophysiologic Approach, 8e, the field’s most respected reference Chapters will be peer-reviewed by both nurse practitioners and pharmacy professors Easy-to-follow disorder-based organization surveys the full range of organ system disorders treated in pharmacy practice An online learning center includes self-assessment questions and answers Pharmacotherapy Principles & Practice, Fourth Edition uses a solid evidence-based approach to teach you how to design, implement, monitor, and evaluate medication therapy. This trusted text provides everything you need to gain an in-depth understanding of the underlying principles of the pharmacotherapy of disease—and their practical application. In order to be as clinically relevant as possible, the disease states and treatments discussed focus on disorders most often seen in clinical practice, and laboratory values are expressed as both conventional units and SI units. Importantly, all chapters were written or reviewed by pharmacists, nurse practitioners, physician assistants, and physicians widely recognized as authorities in their fields. Pharmacotherapy Principles & Practice, Fourth Edition opens with an introductory chapter followed by chapters on pediatrics, geriatrics, and palliative care. The remainder of the text consists of ninety-eight disease-based chapters that review etiology, epidemiology, pathophysiology, and clinical presentation, followed by therapeutic recommendations for drug selection, dosing, and patient monitoring. A strong pedagogy program includes structured learning objectives; key concepts indicated with numbered icons; patient care and monitoring guidelines; knowledge-building boxed features within chapters consisting of Clinical Presentation & Diagnosis, Patient Encounters, and Patient Care and Monitoring Guidelines; a standardized chapter format; a glossary of terms; and much more.
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