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Phenolic compounds as a large class of metabolites found in plants have attracted attention since long time ago due to their properties and the hope that they will show beneficial health effects when taken as dietary supplements. This book presents the state of the art of some of the natural sources of phenolic compounds, for example, medicinal plants, grapes or blue maize, as well as the modern methods of extraction, quantification, and identification, and there is a special section discussing the treatment, removal, and degradation of phenols, an important issue in those phenols derived from the pharmaceutical or petrochemical industries.
Desde otra ruta analítica, se destacan los Modelos Analíticos Transdisciplinarios que implican romper las fronteras disciplinarias, tal como se propone en la Epistemología de la Complejidad de Edgar Morin (1994), en la Epistemología de la Transdisciplinariedad de Basarab Nicolescu (1996) y el Análisis del Sentido de Julieta Haidar (2006). En estos modelos, se entrelazan diferentes enfoques teóricos y rutas analíticas, se construyen datos complejos, se construyen categorías transdisciplinarias para analizar diversas prácticas semiótico-discursivas.
La adopción es una tarea compleja y los que optan por este camino para ser padres, requieren de información y ayuda para prepararse a ella. Este libro, que es una reedición revisada del libro que con el mismo nombre, se publicó en 1991, sigue siendo vigente, han cambiado las leyes y en gran medida las actitudes con que la población chilena recibe a quienes son hijos por adopción. Pero los sentimientos, las reacciones humanas que están detrás de este acto, siguen siendo los mismos. El proceso va mostrando, a través del ciclo de vida familiar, las diferencias con la parentalidad biológica, a través de los sentimientos que surgen, las situaciones que hay que encarar y las tareas a re...
Perfect for readers of This Is Where it Ends, The Border is a gripping drama about four teens, forced to flee home after a deadly cartel rips apart their families. They must now face life-threatening danger and unimaginable sacrifice as they attempt to cross the U.S. border. "Thrilling... often brilliant."—Kirkus One moment changed their lives forever. A band plays, glasses clink, and four teens sneak into the Mexican desert, the hum of celebration receding behind them. Crack. Crack. Crack. Not fireworks—gunshots. The music stops. And Pato, Arbo, Marcos, and Gladys are powerless as the lives they once knew are taken from them. Then they are seen by the gunmen. They run. Except they have nowhere to go. The narcos responsible for their families' murders have put out a reward for the teens' capture. Staying in Mexico is certain death, but attempting to cross the border through an unforgiving desert may be as deadly as the secrets they are trying to escape...
Society for Ethnobotany Daniel F. Austin Award The important cultural role of an ancient, endangered plant Under the Shade of Thipaak is the first book to explore the cultural role of cycads, plants that evolved over 250 million years ago and are now critically endangered, in the ancient and modern Mesoamerican and Caribbean worlds. This volume demonstrates how these ancient plants have figured prominently in regional mythologies, rituals, art, and foodways from the Pleistocene-Holocene transition to the present. Contributors discuss the importance of cycads from a variety of disciplinary perspectives, including biology and population genetics, historical ecology, archaeology, art history, l...
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This book provides a comprehensive review of synthesis and physicochemical and biological characterization of novel antibacterial biomaterials produced according to original procedures and aimed at medical applications such as wound dressing, soft and hard tissue implants, drug delivery devices, and carriers for cell cultivation. It is intended for all researchers working in the fields of biomaterials and biomedical engineering, as well as medical professionals, science and engineering graduate students, academics, and industrial researchers. Includes in-depth discussions on synthesis and physicochemical characterization of novel poly vinyl alcohol-based hydrogels aimed at wound dressings an...
Until recently, few scholars outside of Ecuador studied the country’s history. In the past few years, however, its rising tide of indigenous activism has brought unprecedented attention to this small Andean nation. Even so, until now the significance of gender issues to the development of modern Indian-state relations has not often been addressed. As she digs through Ecuador’s past to find key events and developments that explain the simultaneous importance and marginalization of indigenous women in Ecuador today, Erin O’Connor usefully deploys gender analysis to illuminate broader relationships between nation-states and indigenous communities. O’Connor begins her investigations by e...
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