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LA PUNTUACIÓN: USOS Y FUNCIONES es un libro práctico, lleno de ejemplos clarificadores, de consulta obligada para toda persona que quiera escribir con coherencia y claridad.
Cambridge Spanish offers a wide range of tools for the language classroom, from illustrated elementary readers to advanced Spanish film and literature textbooks. These materials supplement and enhance Cambridge's three core Spanish series: the elementary course ¡Hola Mundo!, ¡Hola, Amigos!; the secondary course Mundo Real; and the introductory college course Entornos.
This volume, with contributions from a team of multi-disciplinary team experts, addresses the economic sustainability and clean manufacturing methods to deal with the challenges that water scarcity and water quality are imposing on many countries, particularly on Mediterranean arid areas, that are threatening their economic and social development. Water plays a crucial role in industry, agriculture and daily life. Its use has increased ten-fold between 1900 and 2000. On a global scale, about 70 % of clean water from available sources is used for agricultural purposes, primarily irrigation, the rest of it being used for domestic and industrial purposes. With the actual demographic and economic trends, it is expected that by 2025, two-thirds of the world population will live in water-stressed areas and it is expected a 40 % increase in water consumption.
One of the major challenges for many Mediterranean and other countries is finding viable solutions to tackle water shortage. Some of the major water quality constraints derive from the high salinity of groundwater and from pollution sources such as: untreated domestic sewage, fertilizers and pesticides from irrigation drainage, industrial effluents, and solid waste disposal. Wastewater treatment processes involving physico-chemical and biological treatment, chemical oxidation, membrane technologies, along with methods of solids concentration and disposal are of special relevance in dealing with these problems. This volume contains selected lectures presented at the NATO ADVANCED TRAINING COU...
Vols. for 1969- include ACTFL annual bibliography of books and articles on pedagogy in foreign languages 1969-