Ebooks de ciencias, página 17 de 709

Glycals and Their Derivatives is an essential resource for understanding the emerging applications of carbohydrate-derived unsaturated sugars. Carbohydrates are versatile molecules, abundant in nature, biocompatible, and structurally diverse, with glycals and their derivatives showing remarkable biological activities, including antimicrobial and anticancer effects. It discusses the synthesis, transformations, and applications of glycals, offering valuable insights for researchers and professionals in glycoscience.Key Features:- Comprehensive Coverage: Explores the synthesis and transformation of glycals, glycosides), and 2-C-branched sugars, emphasizing their chemical and biological significance.- Advanced Synthetic Strategies: Discusses recent advances, including metal-catalyzed and metal-free approaches for glycoside synthesis under mild conditions.- Natural Product Synthesis: Highlights the total synthesis of medicinally important molecules derived from glycals.- Cutting-Edge Applications: Examines the role of glycals in creating glycohybrids and glycoconjugates, opening avenues in glycobiology and glycotechnology.Readership: Designed for undergraduate and graduate students, academic researchers, and professionals in the pharmaceutical and chemical industries.

Este texto básico cubre el área de conocimientos que abarca un curso de Ciencias de la Tierra, pero tratando con más detalle los temas de los textos que se encuentran en el mercado. El libro tiene un nivel aceptable -ni Matematicas ni Fisica muy avanzadas-, pero lleno de ideas que estimulan la mente.

Es una necesidad real tanto para los estudiantes del último curso de la licenciatura como para los posgraduados, seleccionar ampliamente problemas y soluciones de física del estado sólido tanto para el uso de profesores como de alumnos y es con esa idea con la que se ha preparado este libro.

Por su sencillez, claridad, elección adecuada de materias, y sobre todo por la clara orientación práctica, hacen de esta obra un texto ideal en los primeros grados de la formación profesional.

Por ser um país de considerável estabilidade sísmica, o Brasil conta atualmente com poucos pesquisadores ligados ao estudo sísmico. No entanto, as características construtivas das edificações brasile

eso y energía requieren, para su funcionamiento seguro y eficiente, complejossistemas de control. Estos, a su vez, se apoyan en multitud de instrumentos,así como en redes de comunicaciones digitales industriales. Por todo ello, enlos proyectos de ingenieria de tales plantas, la parte correspondiente a los sistemas de control e instrumentacion ocupa un lugar esencial. Este libro, escrito por profesionales especializados en diversos aspectos de estas tecnologias, sirve de guia para el desarrollo de tales proyectos. Su enfoque eminentemente practico no descuida los fundamentos basicos teoricos de las disciplinas involucradas. El contenido del libro puede ser util tanto a los profesionales conexperiencia en estas materias como para aquellos lectores que se estan iniciando en este apasionante campo de la ingenieria. La edicion digital del libro ha facilitado el complementarlo con utilidades y programas de calculo de diversas tareas en los proyectos, lo que enriquece su valor como herramienta para las labores de ingenieria y le otorga una nueva dimension practica.INDICE: ACTIVIDADES DE 1ª FASE DE PROYECTO. Conceptos generales. Otras actividades. Software complementario y corporativo. Sistemas auxiliares. Anexos. GENERALIDADES DE 2º FASE DE PROYECTO. Conceptos Generales. Documentacion de montaje de instrumentos. Actividades de obra. GESTIEN DE PROYECTOS . UTILIDADES

This book includes interactive and intentionally designed illustrations that create a framework for association while supporting and promoting the Bahamas.With the use of cartoons and "Concepts Contexts" that are fillable sections of text (that have an answer key at the bottom of the page), we create a guide to understanding and learning high school chemistry in an easily digestible format.The information contained within the book is the exclusive work product of David Ferguson and is not to be reproduced, copied or distributed without the expressed written consent of David Ferguson.

Gracias a la ubicación de Colombia en la zona ecuatorial, gozamos de la existencia de una gran biodiversidad arbórea de carácter tropical. En las ciudades los árboles son componentes fundamentales del espacio abierto.Ellos hacen parte del tejido ambiental urbano porqueSon habitat natural de la fauna, incorporan oxigeno, restauran los suelos, crean microclimas.Son elementos de mejoramiento urbanistico y paisajistico, porque suavizan las masas de concreto, generan seguridad, contribuyen a la sostenibilidad social.Son elementos componentes del equipamiento, porque dan caracter e identidad, señalizan y dan referencia.Por tanto, hacen mas amable fisica y perceptualmente el entorno cotidiano. Sin embargo, los arboles se tratan con indiferencia. Se menosprecia su bioarquitectura, no se garantiza su adecuada seleccion, mantenimiento, estabilidad, ni tampoco las minimas condiciones requeridas para su siembra.Por su flora arborea, el paisaje de la Universidad del Valle es considerado como un lugar de gran valor ecologico en la region. La biodiversidad establecida contiene un recurso patrimonial vegetal y animal que ofrece al medio academico todo un potencial para la docencia, investigacion y la extension y tambien para la reflexion, concientizacion y sensibilizacion sobre el recurso arboreo que hace parte importante de los elementos estructurales propios de la cultura y del medio ambiente local.ARBOLES DE LA UNIVERSIDAD DEL VALLE realza la riqueza floristica del Campus Universitario a partir de un conjunto de fichas tecnicas botanico-paisajistas ilustradas, que proporcionan la informacion sobre las caracteristicas, propiedades, usos, funciones paisajisticas y recomendaciones para la reproduccion y el tratamiento de los arboles que identifican el paisaje de la Universidad del Valle y por, ende, el paisaje local.

La intención de los autores es que Determinación de estructuras orgánicas debe ser como una introduccion en las técnicas de investigación. En realidad es probablemente el primer curso de laboratorio en el cual el estudiante esta en su medio. El estudiante no tiene un camino preestablecido que seguir, el cual lo conduzca por el senderro correcto para la resolucion de los problemas. Despues de cada experimento el estudiante debe valorar la informacion que ha obtenido y escoger el camino que ha de seguir para los proximos experimentos.

El desarrollo ininterrumpido de la Física teórica y la constante ampliación del campo de sus aplicaciones imponen nuevos requisitos a los manuales y obras de texto dedicados a ella.Los métodos de investigacion fisica experimentales y teoricos han penetrado en toda una serie de disciplinas cinetificas afines (Quimica fisica, Biofisica, Geofisica, Astrofisica, etc.) y en la tecnica (Fisica de los metales y Metalurgia fisica, Fisica del calor, Electrotecnia y Radiotecnia, tecnica de los computadores, construccion de instrumentos de precision, etc.) Las personas que trabajan en estos campos de la Ciencia y de la Tecnica tambien necesitan, por lo tanto, un minimo de conocimientos de Fisica teorica.

Al escribir este texto se ha intentado demostrar que las Ciencias físicas no son simplemente una colección o reunión de hechos que hay que recordar de memoria. Aunque estos hechos son necesarios, la memorizacion de formulas aparentemente sin significado no es lo que deberia ser la Ciencia. En lugar de ello, deseamos mostrar al alumno que la Ciencia es un modo de conseguir que adquiera significado y coherencia el conocimiento que en gran parte ya posee.

La finalidad de este libro sobre principios, destinado a los estudiantes que inician el estudio del Análisis matemático, es presentar las teorías básicas y los métodos propios de esta rama de la Matematica, que han de servir de fundamento y referencia a los que se dediquen al cultivo de esta ciencia, o a aquellos que usen de ella en las aplicaciones.

Resumiendo las características de su contenido podemos decir que este noveno tomo del Curso de Física teórica trata de la teoría cuántica del estado condensado de la materia. Se inicia con una exposicion detallada de la teoria de los liquidos cuanticos de Born y Fermi.

Sempre fui encantado com a ideia de aprender a ensinar. Tenho uma grande facilidade em armazenar e relacionar conhecimentos, porém não ainda possuo a mesma para transmitir didaticamente esses conheci

When George I, Elector of Hanover, was crowned King of England in 1714, he established a dynastic union between the two countries that endured until 1837, leaving many cultural and political accomplishments to posterity. The 300th anniversary of this union led the Institute of Landscape Architecture, Technische Universitat Dresden, and the Centre of Garden and Landscape Architecture (CGL), Leibniz Universitat Hannover, to take a critical look at the gardens that resulted. The symposium "Hanover and England: a union of state and garden / German and British garden culture between 1714 and today" was sponsored by the Lower Saxonian Ministry of Science and Culture. The resulting papers dealt with far more than garden history, addressing as well the background and channels by which ideas on art, agriculture, commerce, technology, literature and politics were exchanged. Given the encyclopedic interests of late 18th century thinkers, it was necessary to invite several academic disciplines to participate, in order to describe and discuss the cultural transfer between Great Britain and Hanover. The transfer of horticultural and artistic ideas very often flourished in the 19th century at different places. For this reason, the conference focused on two key aspects: the Hanoverian-British exchange between 1714 and 1837 (the period of the actual royal union) and the Anglo-German relations that endure to the present day.Als Georg I., Kurfurst von Hannover, 1714 zum Konig von England gekront wurde, begrundete dies eine Personalunion zwischen den beiden Landern, die bis 1837 bestand und der Nachwelt eine Vielzahl kultureller und politischer Errungenschaften hinterlie. Das 300-jahrige Jubilaum dieses Zusammenschlusses nahmen das Institut fur Landschaftsarchitektur der Technischen Universitat Dresden und das Zentrum fur Gartenkunst und Landschaftsarchitektur (CGL) der Leibniz Universitat Hannover zum Anlass, sich kritisch mit den in dieser Zeit entstandenen Garten auseinanderzusetzen. Das Symposium "Hanover and England: a union of state and garden / German and British garden culture between 1714 and today" wurde vom Niedersachsischen Ministerium fur Wissenschaft und Kultur gefordert. Die Beitrage beschaftigten sich nicht nur mit Gartengeschichte, sondern widmeten sich auch dem Austausch von Ideen zu Kunst, Landwirtschaft, Handel, Technologie, Literatur und Politik. So schien es sinnvoll, unterschiedliche akademische Disziplinen zur Teilnahme einzuladen, um den kulturellen Transfer zwischen Grobritannien und Hannover zu untersuchen und zu diskutieren. Die Konferenz konzentrierte sich auf zwei Schlusselaspekte: den hannoverisch-britischen Austausch zwischen 1714 und 1837 (die Zeit der Personalunion) und die deutsch-englischen Beziehungen, die bis heute andauern.

Molecular and Physiological Insights into Plant Stress Tolerance and Applications in Agriculture is an edited volume that presents research on plant stress responses at both molecular and physiological levels. Key Features: - Emphasizes the morphological and physiological reactions of plants and the underlying molecular mechanisms when faced with stress from environmental or pathogenic factors. - Explores microbial dynamics within the plant rhizosphere and the application of plant growth-promoting bacteria as biofertilizers and endophytes as biocontrol agents to enhance crop growth and productivity for sustainable agriculture. - Systematically summarizes molecular mechanisms in plant stress tolerance and discusses the current applications of biotechnology, nanotechnology, and precision breeding to obtain stress-tolerant crops, contributing to climate-smart agriculture and global food security. - Includes contributions and references from multidisciplinary experts in plant stress physiology, plant molecular biology, plant biotechnology, agronomy, agriculture, nanotechnology, and environmental science. The content of the book is aimed at addressing UN SDG goals 2, 12, and 15 to achieve zero hunger and responsible consumption and production, and to sustainable use of terrestrial ecosystems, respectively. This comprehensive resource is suitable for researchers, students, teachers, agriculturists, and readers in plant science, and allied disciplines. Readership: Researchers, students, teachers, agriculturists, and readers in plant science, and allied disciplines.

Mycosporine-like amino acids (MAAs), have the property of absorbing ultraviolet rays, and are widely used as active ingredients in cosmetics such as sunscreens. They also have many bioactive properties that make them an attractive ingredient for pharmaceuticals and functional food. This book summarizes information about the molecular structures, activities and applications of mycosporine-like amino acids (MAAs). It aims to be an introductory book for undergraduate and graduate students in applied sciences, or as a handbook for researchers in pharmaceutical chemistry and cosmetics. Key features - 11 structured chapters covering the biochemistry of MAAs - Introduces readers to biochemical and synthetic pathways of MAAs - Presents information on many bioactive properties of MAAs including helioprotective, anti-inflammatory, antioxidant and anti-collagenase effects - Simple, clear explanations for learners - Academic and scholarly references for advanced readers - Illustrated appendices

Cerium is the most abundant metal of rare-earth elements. It can be used to make materials such as phosphors and alloys, that have applications in various applied fields (like electronics, magnetics and heterogeneous catalysis) and devices (like catalytic converters and gas mantles). Cerium-Based Materials: Synthesis, Properties and Applications presents detailed knowledge about cerium materials. Starting with the history of cerium-based materials, it gives an introduction to the synthesis of chemicals like cerium oxides and composites. This is followed by information about characterization of cerium nanoparticles and industrial applications of cerium-based materials, with a focus on catalysis, biomedical engineering and pharmaceutical chemistry. This book is an essential reference for researchers and chemical engineers who want a summary of cerium materials and its applications.

Recent Trends in Livestock Innovative Technologies explores the most recent developments and developing trends in the livestock farming industry. The book delves into the application of innovative technologies in various aspects of livestock production, management, and health through edited chapters. The book starts with an outline of the difficulties the livestock sector faces and the necessity for technological solutions to these difficulties. Subsequent chapters cover innovations in this area. Key topics include: Advances in genetics and breeding methods: Contributing authors stress the possible impact of issues like marker-assisted selection, genomic selection, and gene editing on the future of animal breeding. Precision livestock farming: The use of sensor technologies, data analytics, and automation to monitor and control livestock production systems more effectively. The authors examine how these technologies enable real-time monitoring of environmental variables, animal activity, and health, which enhances production, animal welfare, and resource use. The management of feed and nutrition in livestock production: The book explores cutting-edge feed formulations, precise feeding systems, and alternative feed sources that can increase feed efficiency, lessen negative effects on the environment, and improve animal health. Fresh methods for illness prevention and management, such as the use of vaccines, diagnostics, and biosecurity measures. Social and ethical issues related to the adoption of cutting-edge livestock technologies. The authors attempt to give a fair assessment of the advantages and drawbacks of these technologies, and address concerns about animal welfare, environmental sustainability, and public perception of current farming practices. Recent Trends in Livestock Innovative Technologies is an informative resource for researchers, professionals, and policymakers interested in staying up-to-date with the advancements and future directions of the livestock industry.

This book sheds light on the causes, effects, and control of microplastic pollution, providing valuable insights into the tools and techniques for analysis, the impact on ecosystems, and the potential risks to human well-being. The editors focus on the urgency of addressing this global environmental challenge through collaborative efforts and sustainable solutions. This reference features 10 edited chapters covering multiple aspects of microplastic pollution. The book introduces the reader to various tools and techniques used to analyze microplastic pollution in both aquatic and terrestrial ecosystems. It then examines the sources, pathways, and levels of microplastic contamination in the environment and explains how to assess the potential health risks for the nearby communities. The impact of microplastic on flora and fauna is presented in one chapter. To emphasize the importance of accurate assessment methods in understanding the extent and impact of microplastic contamination. The editors also present a case study conducted in Thoothukudi, South India, to explore the implications of microplastic pollution on human health. The book also provides information on solutions to microplastic pollution including the use of bioplastics and removal techniques. Microplastic Pollution: Causes, Effects, and Control It equips readers with a complete understanding of the global challenge of microplastics, fostering awareness and encouraging further research and action to protect our ecosystems and human health from their detrimental impact. It is an ideal handbook for environmental science researchers and students who need to understand microplastic pollution and plan environmental impact assessments for research projects in academic and professional settings, Key Features - Comprehensive coverage of microplastic pollution with 10 structured chapters - Informs readers about important parameters to understand and measure the impact of microplastics on local fauna, flora and the surrounding environment - Covers evaluation and remediation of microplastics in both terrestrial and marine environments - Includes references for advanced readers - Includes a case study on the effect of microplastics in Thoothukudi, South India Audience Environmental science scholars and learners, general readers and decision makers involved in pollution control.