Cryptography has been employed in war and diplomacy from the time of Julius Caesar. In our Internet age, cryptography's most widespread application may be for commerce, from protecting the security of electronic transfers to guarding communication from industrial espionage. This accessible introduction for undergraduates explains the cryptographic protocols for achieving privacy of communication and the use of digital signatures for certifying the validity, integrity, and origin of a message, document, or program. Rather than offering a how-to on configuring web browsers and e-mail programs, the author provides a guide to the principles and elementary mathematics underlying modern cryptography, giving readers a look under the hood for security techniques and the reasons they are thought to be secure.
Nitric oxide is involved in the regulation of the circulation in physiologic and pathophysiological conditions. Evidence indicates that alterations in endothelial production of nitric oxide may be involved in the pathogenesis of central hypertension, pulmonary hypertension, renal disease and coronary vasopastic disorders. In addition to being involved in regulation of the circulation in physiologic and pathophysiologic conditions, the inducible form of the enzyme may play a role in the refractory hypertension.
Put the world's most well-known kidney reference to work in your practice with the 11th Edition of Brenner & Rector's The Kidney. This two-volume masterwork provides expert, well-illustrated information on everything from basic science and pathophysiology to clinical best practices. Addressing current issues such as new therapies for cardiorenal syndrome, the increased importance of supportive or palliative care in advanced chronic kidney disease, increasing live kidney donation in transplants, and emerging discoveries in stem cell and kidney regeneration, this revised edition prepares you for any clinical challenge you may encounter. - Extensively updated chapters throughout, providing the latest scientific and clinical information from authorities in their respective fields. - Lifespan coverage of kidney health and disease from pre-conception through fetal and infant health, childhood, adulthood, and old age. - Discussions of today's hot topics, including the global increase in acute kidney injury, chronic kidney disease of unknown etiology, cardiovascular disease and renal disease, and global initiatives for alternatives in areas with limited facilities for dialysis or transplant. - New Key Points that represent either new findings or "pearls" of information that are not widely known or understood. - New Clinical Relevance boxes that highlight the information you must know during a patient visit, such as pertinent physiology or pathophysiology. - Hundreds of full-color, high-quality photographs as well as carefully chosen figures, algorithms, and tables that illustrate essential concepts, nuances of clinical presentation and technique, and clinical decision making. - A new editor who is a world-renowned expert in global health and nephrology care in underserved populations, Dr. Valerie A. Luyckx from University of Zürich. - Board review-style questions to help you prepare for certification or recertification. - Enhanced eBook version included with purchase, which allows you to access all of the text, figures, and references from the book on a variety of devices
High Risk Pregnancy examines the full range of challenges in general obstetrics, medical complications of pregnancy, prenatal diagnosis, fetal disease, and management of labor and delivery. Drs. David James, Philip J. Steer, Carl P. Weiner, Bernard Gonik, Caroline Crowther, and Stephen Robson present an evidence-based approach to the available management options, equipping you with the most appropriate strategy for each patient. This comprehensive reference features the fully searchable text online at www.expertconsult.com, as well as more than 100 videos of imaging and monitoring. giving you easy access to the resources you need to manage high risk pregnancies. Prepare for clinical challenges and save time in addressing them thanks to expert advice on treatment options from international contributors. Find and apply the information you need quickly and easily through a consistent organization and at-a-glance summary boxes that discuss evidence-based management options. Access the fully searchable text online at www.expertconsult.com, along with links to Medline. View over 140 videos of detailed fetal imaging and monitoring that aid in diagnoses. Tap into recent developments in treatment and management in four new chapters—Global Maternal & Perinatal Health Issues; Recurrent Pregnancy Loss; Surveillance of the Fetus and its Indications; and Training for Obstetric Emergencies. Apply new evidence-based management options to treat genetic and constitutional factors leading to a high-risk pregnancy (such as diabetes, obesity, hypertension, and cardiac disease) through new and expanded coverage of these increasingly common presentations. Reference pregnancy-relevant laboratory values with an updated and comprehensive appendix on "Normal Values in Pregnancy." Effectively manage patients newly diagnosed with hematologic and immunologic malignancies, and explore the available drug options. Confirm your diagnoses with greater confidence thanks to full-color images throughout the text.
Development and Social Change: A Global Perspective describes the dramatic acceleration of the global and political economy in four parts: colonialism, the development era, the current era of globalization, and global counter-movements for equity and sustainability.
This accessible introduction for undergraduates explains the cryptographic protocols for privacy and the use of digital signatures for certifying the integrity of messages and programs. It provides a guide to the principles and elementary mathematics underlying modern cryptography, giving readers a look under the hood for security techniques and the reasons they are thought to be secure.
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