Libros de ciencias, página 15 de 2693

This reference book is unique in its kind, since it meticulously lists a vast variety of the extensive South American flora, in particular the one of Venezuela. Pharmacists, pharmacologists, toxicologists and botanists will find that this encyclopaedia is unprecedented in depth and detail. In an A-Z format, more than 80 plant families are covered. Botanical information as well as the chemical content of the individual species is given together with their specific use in traditional South American medicine. More than 250 detailed figures allow easy identification and the screening of plants of interest.

Interactions between plants and animals are incredibly diverse and complex and span terrestrial, atmospheric and aquatic environments. The last decade has seen the emergence of a vast quantity of data on the subject and there is now a perceived need among both teachers and undergraduate students for a new textbook that incorporates the numerous recent advances made in the field. The book is intended for use by advanced level undergraduate and beginning graduate students, taking related courses in wider ecology degree programmes.

Evapotranspiration in Agro Ecosystems and Forestry Spatio temporal Applications presents the progress and advances made in terms of science and application of evaporation transpiration and evapotranspiration for various vegetation surfaces water bodies and bare soil under different soil and crop management including different irrigation and tillage management conditions Sections on forest and wetlands evapotranspiration and grassland evaporative losses are included as are the fundamentals of original Penman Penman Monteith Shuttleworth Wallace and ASCE EWRI and FAO56 Penman Monteith equations and their derivatives The book is an excellent resource to better understand the progression and applications and dynamics of most recent evapotranspiration evaporation and transpiration measurement and modeling technologies Case studies will be provided in terms of how different technologies are currently deployed how data are used for providing information and management decisions to the users

Lidar principles,processing and applications forest ecology es un libro del autor Guo editado por ACADEMIC PRESS. Lidar principles,processing and applications forest ecology tiene un código de ISBN 9

Essential Minerals in Plant Soil Systems Coordination Signaling and Interaction under Adverse Situations is the first book to encompass these key aspects of plant science biochemistry soil science and fertilizer development in a single volume Describing the micro and macronutrients in the plant soil system with the help of suitable illustrations the book connects all the pieces enabling comprehensive and connected understanding Sections cover recent advances in the understanding of how plants coordinate the acquisition transport signaling and interaction and cross talks between macro and micro nutrients in adverse environmental situations This book is a valuable reference for those putting research into practice in addressing stress situations as well as providing important foundational insights for further research

The first edition, published in 1973, has become a classic reference in the field. Now with the second edition, readers will find information on key new topics such as neural networks and statistical pattern recognition, the theory of machine learning, and the theory of invariances. Also included are worked examples, comparisons between different methods, extensive graphics, expanded exercises and computer project topics. An Instructor''s Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

La ciencia es un delicado y complejo equilibrio entre lo experimental y lo teórico, entre las observaciones que realizamos y los sistemas lógico-simbólicos que construimos para relacionar todo aquello que medimos en la naturaleza. No hay ciencia sin observaciones, sin experimentos. Y sin embargo, son las teorias, y los teoricos los que mas atencion y popularidad consiguen. Precisamente por esto son necesarios libros como el de Robert Crease, El prisma y el pendulo, en el que se presentan y explican con claridad y situandolos en su contexto cientifico e historico, diez de los experimentos mas importantes de la historia de la fisica; diez experimentos, ademas, bellos. Van estos desde el que empleo en el siglo III a. de C. Eratostenes para medir la circunferencia de la Tierra, hasta los de interferencia cuantica de electrones que muestran con particular dramatismo la famosa dualidad onda-corpusculo, pasando por otros como los que Galileo supuestamente realizo en la torre inclinada de Pisa, la descomposicion de los rayos de luz en colores que Newton produjo con el sencillo recurso de un prisma, la puesta en evidencia de la rotacion de la Tierra mediante en pendulo de Foucault, o los que diseño Rutherford y que le sirvieron para demostrar que los atomos tenian una estructura planetaria. Intercaladas entre los capitulos dedicados a estos experimentos, se encuentran unas exquisitas y apropiadas reflexiones de Crease que ayudaran a los lectores a comprender mejor que es la ciencia.

Buceando en las nuevas evidencias que ha dejado la descodificación del genoma humano, el periodista científico Nicholas Wade nos adentra en las bases genéticas de la raza y su rol fundamental en la historia de la humanidad.Pocas ideas han sido mas perniciosas que aquellas que afirman que hay razas inherentemente superiores a otras. Por esa razon, el debate sobre las diferencias biologicas entre razasha sido completamente proscrito del ambito cientifico. La evolucion humana, se insiste desde un inusitado consenso, acabo en la prehistoria.No obstante, el consenso parece ser erroneo. Wade demuestra a lo largo de este libro que la evolucion humana siguio su curso, que el aislamiento en el que han vivido las distintas poblaciones a lo largo de los siglos ha propiciado ese desarrollo y que existen distinciones, divergencias, en el comportamiento y por tanto en las sociedades mismas. Que, en consecuencia, atributos como el ahorro, el pacifismo, o la alfabetizacion, propios de las clases medias, han sido lentamente inoculados geneticamente desde la poblacion agraria, culminado en la Revolucion Industrial y la emergencia de las sociedades modernas.Rechazando sin ambages la nocion de superioridad racial, este libro demuestra como nuestra informacion genetica contiene una informacion vital para entender nuestra historia y las sociedades que la integran, y que la mejor forma de servir al interes publico es buscando incesantemente sin miedo la verdad cientifica.

Neglected and Underutilized Crops Future Smart Food explores future food crops with climate resilience potential Sections cover their botany nutritional significance global distribution production technology and tolerance to biotic and abiotic stresses of neglected and underutilized crops By simply changing species in a crop rotation system the cycle of some pests and diseases is disrupted and probabilities of infestations are reduced Finally the book provides case studies that highlight where the adaptation of crops to local environments especially with regard to climate change have been successful These crops can help make agricultural production systems more resilient to climate change Although a few books on neglected and underutilized crops are available this comprehensive book covers the full scope of crop husbandry nutritional significance and global distribution

Microbiome Based Decontamination of Environmental Pollutants explores the complex interactions of plant associated microbiomes providing insights into the pressing challenges of managing environmental resources such as soil water and waste Analysis has shown a formidable potential based in the network interactions between plant microbiota and environmental contaminants This book presents insights into the potential exploitation of these plant associated microbial functions This volume in the Plant and Soil Microbiome series summarizes microbiological aspects of environmental management from the basics to advanced theoretical as well as practical aspects of microbial based approaches The physical and chemical changes caused by pollution of an ecosystem can occur rapidly significantly impacting the functionality of ecosystem services in that environment Environmental contamination poses and increasingly global challenge through direct and indirect adverse impacts on the climate soil productivity and the health concerns of human beings Traditional remediation techniques are not consistently feasible in mitigating environmental contaminants challenges in terms of cost effectiveness limited land resources and toxic residual products The use of plant associated

Nanoparticles Synthesis by Soil Microbes Application in Plant Production and the Environment a volume in the Plant and Soil Microbiome series presents an advanced and recent description of plant and soil microbiome in the nanoparticle synthesis and their application in sustainable agriculture and environment In The book covers the broad aspect of microbial synthesized nanoparticles in their synthesis and application in sustainable agriculture and environmental management in line with the recent and timely further interest in the biogenic synthesis of nanoparticles due to their environmentally friendly cost effective rapid and efficient nature The microbial cell contains various bioactive compounds and in the last few years nanoparticle syntheses from the microbial cell have been increasingly sought due to their overall cost effectiveness and less toxic residual products Microbe assisted synthesis of nanoparticles could provide a green environmentally benign rapid and efficient route for the fabrication of biocompatible nanostructures with diverse physical chemical and optoelectronic properties

This important and exciting title represents the first authoritative volume focussed on pelagic (open ocean) sharks as a group. Virtually every pelagic shark expert in the world has contributed to this landmark publication which includes the latest data and knowledge on pelagic shark biology, fisheries, management, and conservation. Pelagic sharks face unprecedented levels of exploitation in all the world's oceans through both direct fisheries and by-catch, and effective management for these species is contingent upon solid science and data, which this book brings together for the first time. All those involved in shark biology will need to have a copy of this book.

Following the completion of the Human Genome Project the content and organization of the third edition of Human Molecular Genetics (HMG) has been thoroughly revised. There are new chapters on cells and development and on functional genomics. The sections on complex diseases have been completely rewritten and reorganized, as has the chapter on Genome Projects. Other changes include a new section on molecular phylogenetics (Chapter 12) and the introduction of Ethics Boxes to discuss some of the implications of the new knowledge. Virtually every page has been revised and updated to take account of the stunning developments of the past four years since the publication of the last edition of Human Molecular Genetics.

The book contains invited lectures from the International Symposium on the Anisotropic Behaviour of Damaged Materials, held in Krakow, Poland, September 9-11, 2002. Eminent researchers and world experts in the field of damage mechanics report recent achievements and state-of-the-art results in the field. The book deals with the anisotropic damage mechanics involving micromechanical aspects and thermo-mechanical coupling. The contents are both of academic interest and relevant for practical applications, especially those concerning more advanced anisotropic models of materials and the transition from the microscopic to the macroscopic level.