Alfonso X (1221–1284) reigned as king of Castile and León from 1252 until his death. Known to history as El Sabio, the Wise, or the Learned, his appreciation for science and the arts led him to sponsor a number of books on the history of Spain since its Roman settlement. Among them were the Cantigas de Santa Maria, a collection of over four hundred poems exalting his favorite patron saint, Mary, and chronicles of all the kings of Castile and León, Navarre, Aragón, and Portugal. Alfonso X died before his own life could be written. His was a reign fraught with political intrigue and double crosses, almost constant war and equally constant diplomacy, royal largesse and economic instability—all of which led to open revolt and efforts by Alfonso's own son to depose the king. It would be another sixty-some years before King Alfonso XI would commission Fernán Sánchez de Valladolid to write Cronica de Alfonso X to memorialize his great-grandfather. As Alfonso XI's trusted counselor, ambassador, diplomat, and legist, Fernán was an understandable choice, but in the centuries since, his convoluted prose has proven extremely difficult extremely difficult for scholars. Chronicle of Alfonso X is the first and only translation of the king's history. The original "clumsy Castilian" of Fernán Sánchez has now been transformed into literate and engaging English.
The annual meeting of the Perinatal Biochemical Group of the Spanish Biochemical Society held in Madrid on December 15-16, 1989, provided an excellent opportunity to bring together a group of distinguished investigators both from Spain and from abroad with a common interest in developmental endocrinology and biochemistry. The aim of the symposium was to present and discuss the most recent developments in the areas of endocrine and biochemical processes critical to normal growth and maturation of the newborn. To achieve a high degree of interaction among the participants, subject reviews as well as short communications were include in the program. The reviews provided in-depth information on selected important topics. The purpose of short communications was two fold: (i) to provide a forum to discuss on-going investigations on related areas; and (ii) to present opportunities for active participation by young investigators. This format proved very successful in generating fruitful discussions among the participants. Taken together the review chapters and the short communications have resulted in a coherent and unified subject presentation. Advances in biochemistry, molecular biology and cell biology have provided not only new and exciting experimental approaches but also have opened up new directions in the investigation of differentiation and developmental processes at cellular, molecular and biochemical levels during the early stages of growth and maturation. In recent years a wealth of information in these areas of development has emerged at a rapid rate.
The aim of this important book is to present the reader with developments concerning glutathione research. This work focuses on the synthesis-degradation and oxidation-reduction cycles of glutathione, the physiological functions of glutathione (especially in mammalian cells), and the analytical methods used to accurately measure the glutathione status of cells. This resource addresses specific modification of glutathione metabolism that is of special interest in the treatment of some tumors. This rare volume also introduces some different, new techniques on how to accurately measure glutathione, specifically in its oxidized form. Anyone involved with biochemistry, physiology, toxicology, pharmacology, nutrition and radiation biology will find this publication interesting and filled with useful information. It is also a valuable reference for research scientists in such fields as aging, metabolism disorders, and glutathione research.
Explore the foundational and advanced subjects associated with proportional-integral-derivative controllers from leading authors in the field In PID Passivity-Based Control of Nonlinear Systems with Applications, expert researchers and authors Drs. Romeo Ortega, Jose Guadalupe Romero, Pablo Borja, and Alejandro Donaire deliver a comprehensive and detailed discussion of the most crucial and relevant concepts in the analysis and design of proportional-integral-derivative controllers using passivity techniques. The accomplished authors present a formal treatment of the recent research in the area and offer readers practical applications of the developed methods to physical systems, including electrical, mechanical, electromechanical, power electronics, and process control. The book offers the material with minimal mathematical background, making it relevant to a wide audience. Familiarity with the theoretical tools reported in the control systems literature is not necessary to understand the concepts contained within. You’ll learn about a wide range of concepts, including disturbance rejection via PID control, PID control of mechanical systems, and Lyapunov stability of PID controllers. Readers will also benefit from the inclusion of: A thorough introduction to a class of physical systems described in the port-Hamiltonian form and a presentation of the systematic procedures to design PID-PBC for them An exploration of the applications to electrical, electromechanical, and process control systems of Lyapunov stability of PID controllers Practical discussions of the regulation and tracking of bilinear systems via PID control and their application to power electronics and thermal process control A concise treatment of the characterization of passive outputs, incremental models, and Port Hamiltonian and Euler-Lagrange systems Perfect for senior undergraduate and graduate students studying control systems, PID Passivity-Based Control will also earn a place in the libraries of engineers who practice in this area and seek a one-stop and fully updated reference on the subject.
For the past 40 years, the Texas Association of Chicanos in Higher Education (TACHE) has been on the forefront of advocacy to improve opportunity in higher education for US persons of Mexican origin. This volume in the ongoing Images of America series chronicles the history of this unique organization.
Este libro cubre las elecciones de 1952 al 1964, desde el dominio maximo del PPD, en 1952, hasta el primer relevo de gobernadores, aunque del mismo partido, en 1964. Cubre el ascenso del movimiento Estadista y la caida del movimiento Independentista. This book covers the elections held in Puerto Rico between 1952 and 1964. That period saw the highest point in the dominance by the Popular Party; and it also saw the fall and rebirth of the pro-Statehood movement (from 12.87%% in '52 to 34.8%% in '64), coupled with the rise and fall of the pro-Independence movement (from 18.98%% in '52 to 2.81%% in '64).
This work expounds the thought of Luis Muñoz Marín concerning the political status of Puerto Rico, articulating it in terms of natural law ethics. It thus clarifies the philosophical foundations on which the institutional structure of contemporary Puerto Rican society has been erected. Leader of the peaceful revolution which transformed Puerto Rico from a stricken land into a vital society, Muñoz is the founder of a new form of political association with the United States--the Commonwealth of Puerto Rico--which enriches not only American constitutional thought, but also the principles of federalism and democracy in general.
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