La química general se percibe, comúnmente, como una materia más difícil que otras. Existe cierta justificación para tal creencia. Por una parte, tiene un lenguaje muy especializado. Al principio, estudiar química es como aprender un nuevo idioma. Más adelante, algunos de los conceptos son abstractos. Sin embargo con cierto esmero, es estudiante completara con éxito este curso e incluso lo disfrutara. EXTRAIDO DEL LIBRO
The first edition of this book appeared over fifteen years ago. It was the first chemical engineering textbook to combine modeling, simulation, and control. It also was the first chemical engineering book to present sampled-data control. This choice of subjects proved to be popular with both students and teachers and of considerable practical utility. During the ten-year period following publication, I resisted suggestions from the publisher to produce a second edition because I felt there were really very few useful new developments in the field. The control hardware had changed drastically, but the basic concepts and strategies of process control had undergone little change. Most of the new books that have appeared during the last fifteen years are very similar in their scope and content to the first edition. Basic classical control is still the major subject EXTRAIDO DEL PREFACIO
Nearly twenty years ago one of us (S. P. D., soon joined by G. H. S.), began a distillation of the elements of biochemistry into an alphabetical arrangement. The task was formidable and eventually other editors were recruited, an editorial board was established, and now the work is offered as the Oxford Dictionary of Biochemistry and Molecular Biology. It is hoped that the dictionary will serve the needs of the research biochemist or molecular biologist, as well as teachers of the subject and their students. In addition, it should prove of value to practitioners of other fields of study or work seeking the meaning of a biochemical term EXTRAIDO DEL PREFACIO
Microsoft Project is a tool for implementing project management principles and practices that can help you succeed. That’s why this book provides not only the information about which buttons to press and where to type project dates but also the conceptual framework to make computerized project management work for you.
El objetivo principal de este libro es hacer uso del mecanismo de las reacciones orgánicas como un medio para facilitar el dominio y el entendimiento de los principios básicos de la química orgánica, y al mismo tiempo agudizar en el estudiante la capacidad de raciocinio y pensamiento critico. Esto se logra a través de una selección apropiada y haciendo uso de un gran numero de problemas seleccionados de la literatura química. Cada pregunta pretende ilustrar uno o más de los principios fundamentales de los mecanismos de reacción en química orgánica. EXTRAIDO DEL PREFACIO
Para los estudiantes interesados en saber como funciona el mundo, la microeconomía es una de las disciplinas más relevantes e interesantes que lo estudian. Comprenderla bien es fundamental para tomar decisiones empresariales, concebir y entender la política económica y, en términos más generales, para hacerse una buena idea del funcionamiento de una economía moderna. EXTRAIDO DEL PROLOGO
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