Download or read book Elaboraci n de una teor a formal de las redes de Kirchhoff written by María Margarita Redondo Melchor and published by . This book was released on 2009 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Esta tesis trata sobre la conveniencia y utilidad de que las dos leyes de Kirchhoff sean consideradas como relaciones topológicas más que como propiedades de las intensidades y de las tensiones eléctricas. Intensificando el enfoque topológico es más fácil identificar las consecuencias que derivan solo de las dos leyes, y se convierten así en una herramienta mucho más eficaz para el estudio de diferentes y muy diversos sistemas, no solo para el estudio de las redes eléctricas. Se amplía considerablemente su alcance de esta manera, incluso dentro de la propia Teoría de Circuitos.
Download or read book Teor a de las redes de Kirchhoff written by René Boite and published by . This book was released on 1987 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Science Education written by Millar, John and published by McGraw-Hill Education (UK). This book was released on 2000-12-01 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes stock of where we are in science education research, and considers where we ought now to be going. It explores how and whether the research effort in science education has contributed to improvements in the practice of teaching science and the science curriculum. It contains contributions from an international group of science educators. Each chapter explores a specific area of research in science education, considering why this research is worth doing, and its potential for development. Together they look candidly at important general issues such as the impact of research on classroom practice and the development of science education as a progressive field of research. The book was produced in celebration of the work of the late Rosalind Driver. All the principal contributors to the book had professional links with her, and the three sections of the book focus on issues that were of central importance in her work: research on teaching and learning in science; the role of science within the school curriculum and the nature of the science education we ought to be providing for young people; and the achievements of, and future agenda for, research in science education.
Download or read book The North American Mosaic written by Commission for Environmental Cooperation (Montréal, Québec). Secretariat and published by . This book was released on 2001 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The North American Mosaic has four overarching features. First, it is, to the extent feasible, based on comparable information on the status and trends of major indicators of the state of the environment in Canada,Mexico, and the United States. Second, the report confirms that these three countries together make up an incredibly complex, dynamic, and interconnected ecosystem in which humans play a dominant and decisive role. Third, the report raises important and sometimes disquieting questions concerning the sustainability of some current trends. Finally, the report is a reminder that our economic, social, and physical well-being are utterly dependent on the life-sustaining services provided by nature. This report emphasizes the importance of developing mutually compatible economic, social, and environmental goals and policies across the three-country region.
Download or read book Telematics and Computing written by Miguel Felix Mata-Rivera and published by Springer Nature. This book was released on 2019-10-24 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed proceedings of the 8th International Congress on Telematics and Computing, WITCOM 2019, held in Merida, Mexico, in November 2019. The 31 full papers presented in this volume were carefully reviewed and selected from 78 submissions. The papers are organized in topical sections: GIS & climate change; telematics & electronics; artificial intelligence & machine learning; software engineering & education; internet of things; and informatics security.
Download or read book Pharmaceutical Innovation and Access to Medicines written by OECD and published by Org. for Economic Cooperation & Development. This book was released on 2019-01-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews the important role of medicines in health sytems, describes recent trends in pharmaceutical expenditure and financing, and summarises the approaches used by OECD countries to determine coverage and pricing.
Download or read book Digital Convergence in Contemporary Newsrooms written by Benedito Medeiros Neto and published by Springer Nature. This book was released on 2021-11-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the dynamic landscape in contemporary newsrooms across three continents by investigating the impact that the processes of searching, processing, and distributing data and information and the use of big data, with secure, automatic, and agile retrieval of information all have in this context. Journalistic organizations have undergone digital transformations, and only those implementing accurate transformations survive. In so doing, the book addresses the fields of e-Communication, Computer Science, and Information Science and other areas of the authors’ expertise. The first five chapters focus on technical visits to investigate newsrooms’ productive routines and flows in major dailies from Brazil, Costa Rica, and England. The remaining chapters consider that the news production routines are cooperative and distributed and at the same time need to be managed from different perspectives to support the convergence of digital media. Last but not least, the book also identifies an increase in ICT-based tools, with an increasing connection from new media combined with the growing trend of digital economy practices as important factors in the new landscape of digital journalism.
Download or read book Making Medicines Affordable written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-03-01 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to remarkable advances in modern health care attributable to science, engineering, and medicine, it is now possible to cure or manage illnesses that were long deemed untreatable. At the same time, however, the United States is facing the vexing challenge of a seemingly uncontrolled rise in the cost of health care. Total medical expenditures are rapidly approaching 20 percent of the gross domestic product and are crowding out other priorities of national importance. The use of increasingly expensive prescription drugs is a significant part of this problem, making the cost of biopharmaceuticals a serious national concern with broad political implications. Especially with the highly visible and very large price increases for prescription drugs that have occurred in recent years, finding a way to make prescription medicinesâ€"and health care at largeâ€"more affordable for everyone has become a socioeconomic imperative. Affordability is a complex function of factors, including not just the prices of the drugs themselves, but also the details of an individual's insurance coverage and the number of medical conditions that an individual or family confronts. Therefore, any solution to the affordability issue will require considering all of these factors together. The current high and increasing costs of prescription drugsâ€"coupled with the broader trends in overall health care costsâ€"is unsustainable to society as a whole. Making Medicines Affordable examines patient access to affordable and effective therapies, with emphasis on drug pricing, inflation in the cost of drugs, and insurance design. This report explores structural and policy factors influencing drug pricing, drug access programs, the emerging role of comparative effectiveness assessments in payment policies, changing finances of medical practice with regard to drug costs and reimbursement, and measures to prevent drug shortages and foster continued innovation in drug development. It makes recommendations for policy actions that could address drug price trends, improve patient access to affordable and effective treatments, and encourage innovations that address significant needs in health care.
Download or read book Sharing Executive Power written by José Luis Alvarez and published by Cambridge University Press. This book was released on 2005-12-22 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many companies, two or three executives jointly hold the responsibilities at the top-from the charismatic CEO who relies on the operational expertise of a COO, to co-CEOs who trust in inter-personal bonds to achieve professional results. Their collaboration is essential if they are to address the dilemmas of the top job and the demands of today's corporate governance. Sharing Executive Power examines the behaviour of such duos, trios and small teams, what roles their members play and how their professional and inter-personal relationships bind their work together. It answers some critical questions regarding when and how such power sharing units form and break up, how they perform and why they endure. Understanding their dynamics helps improve the design and composition of corporate power structures. The book is essential reading for academics, graduates, MBAs, and executives interested in enhancing teamwork and cooperation at the top.
Download or read book Floral Diagrams written by Louis P. Ronse De Craene and published by Cambridge University Press. This book was released on 2010-02-04 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floral morphology remains the cornerstone for plant identification and studies of plant evolution. This guide gives a global overview of the floral diversity of the angiosperms through the use of detailed floral diagrams. These schematic diagrams replace long descriptions or complicated drawings as a tool for understanding floral structure and evolution. They show important features of flowers, such as the relative positions of the different organs, their fusion, symmetry, and structural details. The relevance of the diagrams is discussed, and pertinent evolutionary trends are illustrated. The range of plant species represented reflects the most recent classification of flowering plants based mainly on molecular data, which is expected to remain stable in the future. This book is invaluable for researchers and students working on plant structure, development and systematics, as well as being an important resource for plant ecologists, evolutionary botanists and horticulturists.
Download or read book Profinite Graphs and Groups written by Luis Ribes and published by Springer. This book was released on 2017-08-23 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a detailed introduction to graph theoretic methods in profinite groups and applications to abstract groups. It is the first to provide a comprehensive treatment of the subject. The author begins by carefully developing relevant notions in topology, profinite groups and homology, including free products of profinite groups, cohomological methods in profinite groups, and fixed points of automorphisms of free pro-p groups. The final part of the book is dedicated to applications of the profinite theory to abstract groups, with sections on finitely generated subgroups of free groups, separability conditions in free and amalgamated products, and algorithms in free groups and finite monoids. Profinite Graphs and Groups will appeal to students and researchers interested in profinite groups, geometric group theory, graphs and connections with the theory of formal languages. A complete reference on the subject, the book includes historical and bibliographical notes as well as a discussion of open questions and suggestions for further reading.
Download or read book Polynomial Identities and Asymptotic Methods written by A. Giambruno and published by American Mathematical Soc.. This book was released on 2005 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a state of the art approach to the study of polynomial identities satisfied by a given algebra by combining methods of ring theory, combinatorics, and representation theory of groups with analysis. The idea of applying analytical methods to the theory of polynomial identities appeared in the early 1970s and this approach has become one of the most powerful tools of the theory. A PI-algebra is any algebra satisfying at least one nontrivial polynomial identity. This includes the polynomial rings in one or several variables, the Grassmann algebra, finite-dimensional algebras, and many other algebras occurring naturally in mathematics. The core of the book is the proof that the sequence of co-dimensions of any PI-algebra has integral exponential growth - the PI-exponent of the algebra. Later chapters further apply these results to subjects such as a characterization of varieties of algebras having polynomial growth and a classification of varieties that are minimal for a given exponent.
Download or read book Poetry and Loss written by Nicholas Roberts and published by Tamesis Books. This book was released on 2009 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In a study which covers the entirety of Montejo's career as poet and essayist, this book examines how the work of this seminal Venezuelan writer explores and deals with the experiences of loss in the twentieth century. This represents the first book-length study in English of Montejo's work and the first monograph in any language to offer a sustained thematic analysis of his entire output. In the process, it serves to bring out from the academic shadows one of the most important and commanding poetic voices to emerge from Latin America to the last fifty years." --Book Jacket.
Download or read book From Grammar to Meaning written by Ivano Caponigro and published by Cambridge University Press. This book was released on 2013-09-12 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the study of formal semantics and formal pragmatics has grown tremendously, showing that core aspects of language meaning can be explained by a few principles. These principles are grounded in the logic that is behind - and tightly intertwined with - the grammar of human language. In this book, some of the most prominent figures in linguistics, including Noam Chomsky and Barbara H. Partee, offer new insights into the nature of linguistic meaning and pave the way for the further development of formal semantics and formal pragmatics. Each chapter investigates various dimensions in which the logical nature of human language manifests itself within a language and/or across languages. Phenomena like bare plurals, free choice items, scalar implicatures, intervention effects, and logical operators are investigated in depth and at times cross-linguistically and/or experimentally. This volume will be of interest to scholars working within the fields of semantics, pragmatics, language acquisition and psycholinguistics.
Download or read book Control of Chagas Disease written by World Health Organization and published by World Health Organization. This book was released on 2002-05 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report of a WHO Expert Committee reviews current knowledge of Chagas disease and its pathogenesis discusses the causative parasite the triatomine vectors and the natural reservoirs of infection and considers the epidemiology and incidence trends of the disease. Prevention and control strategies are described as are the various formal initiatives for interruption of disease transmission. The report concludes by identifying priorities for research and offering guidance for the planning implementation and strengthening of national control programmes. ... this book makes an extremely valuable contribution toward understanding Chagas disease and promoting solid prevention and control efforts. It will no doubt be an important addition to the library of anyone student and expert alike with interests in Chagas disease. The authors are to be congratulated on the completion of a work of excellence - an extremely difficult endeavour at a time when our knowledge of vectors parasites and methodologies is expanding so rapidly. - Transactions of the Royal Society of Tropical Medicine and Hygiene
Download or read book Export Pioneers in Latin America written by Charles F. Sabel and published by David Rockefeller Center for Latin American Studies. This book was released on 2012 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do some export activities succeed while others fail? Here, research teams analyze export endeavors in Latin American countries to learn how export pioneers are born and jump-start a process leading to economic transformation. Case studies range from blueberries in Argentina and flowers in Colombia to aircraft in Brazil and software in Uruguay.
Download or read book The Soils of Mexico written by Pavel Krasilnikov and published by Springer Science & Business Media. This book was released on 2013-02-12 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mexico is an extensive country with an extremely complex mosaic of landscapes. The soils of Mexico have still not been completely studied, and there are few publications available on this subject. This book provides a state-of-the-art view on Mexican soils, their geographical distribution, their use and degradation. This is a first attempt to give a systematized characteristic of the soil resources of Mexico. Land resources of the second-biggest economy in Latin America are critical for its sustainable development, and a demand for adequate soil information is high. The information contained within can be used for any soil-related research done in Mexico and in neighboring countries. The book includes detailed characteristics of soils of all the physiographic regions of Mexico with maps, photos and explanatory schemes. The book is based on the experiences of the authors in research and soil survey, as well as on the existent, mainly ‘grey’ literature on Mexican soils. The book is recommended for researchers and university readers, students of all levels and decision-makers, working in the area of soil science, environmental issues, Earth sciences, land management and nature conservation.
