Download or read book Estudio de costos e ingresos en la producci n de leche a tres diferentes escalas de plantas en los estados de Durango y Caahuila written by Héctor Gerardo Ruíz García and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estudio de costos e ingresos en la producci n de leche a tres diferentes escalas de planta en los estados de Durango y Coahuila written by Héctor Gerardo Ruiz García and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: El presente estudio se realizó en Durango, Dgo., y la Comarca Lagunera, que comprende parte de los estados de Durango y Coahuila, durante los meses de Septiembre y Octubre de 1982. La metodología que se utilizó para la recolección de da tos y formar la información necesaria para la elaboración de este estudio, fué la siguiente. .- Primero:- Se procedió a la realización de la encuesta que proporcionará los datos necesarios para el estudio, que son: Costos de Oportunidad, Costos de Alimentación, Costos de Medicina, Costos de Inseminación Artificial Costos de Mano de obra, Gastos Diversos y Depreciación, además de los Ingresos.
Download or read book Costos y retornos de la producci n de leche en la peque a escala en la zona central de M xico written by Universidad Autónoma del Estado de México and published by UAEMEX. This book was released on 2001 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigaci n en sistemas de salud written by Instituto Nacional de Salud Pública (Mexico) and published by . This book was released on 2011 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil and Sediment Remediation written by Piet Lens and published by IWA Publishing. This book was released on 2005-09-30 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil and Sediment Remediation discusses in detail a whole set of remediative technologies currently available to minimise their impact. Technologies for the treatment of soils and sediments in-situ (landfarming, bioscreens, bioventing, nutrient injection, phytoremediation) and ex-situ (landfarming, bio-heap treatment, soil suspension reactor) will be discussed. The microbiological, process technological and socio-economical aspects of these technologies will be addressed. Special attention will be given to novel biotechnological processes that utilise sulfur cycle conversions, e.g. sulfur and heavy metal removal from soils. Also the potential of phytoremediation will be highlighted. In addition, treatment schemes for the clean-up of polluted megasites, e.g. harbours and Manufactured Gaswork Plants (MGP), will be elaborated. The aim of Soil and Sediment Remediation is to introduce the reader in: the biogeochemical characteristics of soil and sediments- new techniques to study soil/sediment processes (molecular probes, microelectrodes, NMR) clean up technologies for soils polluted with organic (PAH, NAPL, solvents) or inorganic (heavy metals) pollutants- preventative and remediative strategies and technologies available in environmental engineering novel process applications and bioreactor designs for bioremediation the impact of soil pollution on society and its economic importance.
Download or read book How Tobacco Smoke Causes Disease written by United States. Public Health Service. Office of the Surgeon General and published by . This book was released on 2010 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
Download or read book Environmental Transport Processes written by Bruce E. Logan and published by John Wiley & Sons. This book was released on 2012-03-20 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique approach to the challenges of complex environmental systems Environmental Transport Processes, Second Edition provides much-needed guidance on mass transfer principles in environmental engineering. It focuses on working with uncontrolled conditions involving biological and physical systems, offering examples from diverse fields, including mass transport, kinetics, wastewater treatment, and unit processes. This new edition is fully revised and updated, incorporating modern approaches and practice problems at the end of chapters, making the Second Edition more concise, accessible, and easy to use. The book discusses the fundamentals of transport processes occurring in natural environments, with special emphasis on working at the biological physical interface. It considers transport and kinetics in terms of systems that involve microorganisms, along with in-depth coverage of particles, size spectra, and calculations for particles that can be considered either spheres or fractals. The book's treatment of particles as fractals is especially unique and the Second Edition includes a new section on exoelectrogenic biofilms. It also addresses dispersion in natural and engineered systems unlike any other book on the subject. Readers will learn to tackle with confidence complex environmental systems and make transport calculations in heterogeneous environments with mixtures of chemicals.
Download or read book Plants for Arid Lands written by G.E. Wickens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic plants have been defined by SEPASAT as those plants that are utilised either directly or indirectly for the benefit of Man. Indirect usage includes the needs of Man's livestock and the maintenance of the environment; the benefits may be domestic, commercial or aesthetic. Economic plants constitute a large and so far uncalculated percentage of the quarter of a million higher plants in the World today. However, it has been calculated that 10% (25 000) of these species are now on the verge of extinction and extinction means that a genetic resource that could be of benefit to Man will be lost for ever. Furthermore, for every species lost an estimated 10-30 other dependent organisms are also doomed. Fewer than 1 per cent of the World's plants have been sufficiently well studied for a true evaluation of the potential floral wealth awaiting discovery, not only in the rain forests, which man is now actively destroying at a rate of 20 ha a minute, but also in the very much neglected dry areas of the World.
Download or read book Biological Control of Plant Diseases written by E.C. Tjamos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers contained in this book were presented at a NATO Advanced Research Workshop (ARW) held at Cape Sounion, Athens, Greece, 19-24 May, 1991. The twenty-eight more comprehensive papers represent the key subjects of the ARW covered by invited speakers. The thirty-four short papers pre sented in a research format are contributions of those invited to participate in the ARW. There was a total of 70 participants from 21 countries. The objectives of the ARW were as follows: to review current knowledge of biological control of plant diseases and plant parasitic nematodes, with emphasis on mechanisms at the molecular, cellular, organismal, and ecosystem level; to examine and expand on current concepts and synthesize new concepts; to identify and prioritize limitations in the use of biological control for plant diseases and nematodes and the scientific research needed to overcome these limitations; and to develop strategies for biological control through management of resident agents or introduction of natural or modified agents.
Download or read book Jos Rangel Cant written by Carlos Montalvo Larralde and published by . This book was released on 1995 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Green Web written by Martin Holdgate and published by Routledge. This book was released on 2014-04-08 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is a history of the world's oldest global conservation body - the World Conservation Union, established in 1948 as a forum for governments, non-governmental organizations and individual conservationists. The author draws on unpublished archives to reveal the often turbulent story of the IUCN and its achievements in, and influence on, conservation and environmental policy worldwide - establishing national parks and protected areas and defending threatened species.
Download or read book Rocky Mountain Forest and Range Experiment Station written by and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defending the Land of the Jaguar written by Lane Simonian and published by University of Texas Press. This book was released on 2010-07-05 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mexican conservationists have sometimes observed that it is difficult to find a country less interested in the conservation of its natural resources than is Mexico. Yet, despite a long history dedicated to the pursuit of development regardless of its environmental consequences, Mexico has an equally long, though much less developed and appreciated, tradition of environmental conservation. Lane Simonian here offers the first panoramic history of conservation in Mexico from pre-contact times to the current Mexican environmental movement. He explores the origins of conservation and environmental concerns in Mexico, the philosophies and endeavors of Mexican conservationists, and the enactment of important conservation laws and programs. This heretofore untold story, drawn from interviews with leading Mexican conservationists as well as archival research, will be important reading throughout the international community of activists, researchers, and concerned citizens interested in the intertwined issues of conservation and development.
Download or read book The Santa Rita Experimental Range written by Alvin L. Medina and published by DIANE Publishing. This book was released on 1996 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Genetic Characterization of Animal Genetic Resources written by and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: These guidelines address Strategic Priority Area 1 of the Global Plan of Action - "Characterization, Inventory and Monitoring of Trends and Associated Risks". A short overview of progress in molecular characterization of animal genetic resources over the last two decades and prospects for the future is followed by a section that provides practical advice for researchers who wish to undertake a characterization study. Emphasis is given to the importance of obtaining high-quality and representative biological samples, yielding standardized data that may be integrated into analyses on an international scale.
Download or read book The Journal of Madame Giovanni written by Alexandre Dumas and published by Parker Press. This book was released on 2013-02 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the finest yet least well known works by the genius of Alexandre Dumas. This is the fictional yet incredibly detailed and true to life travel diary of a young French women travelling the world during the 1830s.
Download or read book The Soils of Mexico written by Pavel Krasilnikov and published by Springer Science & Business Media. This book was released on 2013-02-12 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mexico is an extensive country with an extremely complex mosaic of landscapes. The soils of Mexico have still not been completely studied, and there are few publications available on this subject. This book provides a state-of-the-art view on Mexican soils, their geographical distribution, their use and degradation. This is a first attempt to give a systematized characteristic of the soil resources of Mexico. Land resources of the second-biggest economy in Latin America are critical for its sustainable development, and a demand for adequate soil information is high. The information contained within can be used for any soil-related research done in Mexico and in neighboring countries. The book includes detailed characteristics of soils of all the physiographic regions of Mexico with maps, photos and explanatory schemes. The book is based on the experiences of the authors in research and soil survey, as well as on the existent, mainly ‘grey’ literature on Mexican soils. The book is recommended for researchers and university readers, students of all levels and decision-makers, working in the area of soil science, environmental issues, Earth sciences, land management and nature conservation.
