Download or read book International Code of Conduct on Pesticide Management written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-09-03 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding that some pesticides are more hazardous than others is well established. Recognition of this is reflected by the World Health Organization (WHO) Recommended Classification of Pesticides by Hazard, which was first published in 1975. The document classifies pesticides in one of five hazard classes according to their acute toxicity. In 2002, the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) was introduced, which in addition to acute toxicity also provides classification of chemicals according to their chronic health hazards and environmental hazards.
Download or read book Curso elemental de f sica experimental y aplicada para uso de los establecimientos de 2a ense anza seminarios y escuelas normales written by Bartolomé Feliú y Pérez and published by . This book was released on 1872 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geothermal Resources written by R. Bowen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the Arab oil embargo of 1974, it has been clear that the days of almost limitless quantities of low-cost energy have passed. In addition, ever worsening pollution due to fossil fuel consumption, for instance oil and chemical spills, strip mining, sulphur emission and accumulation of solid wastes, has, among other things, led to an increase of as much as 10% in the carbon dioxide content of the atmosphere in this century. This has induced a warming trend through the 'greenhouse effect' which prevents infrared radiation from leaving it. Many people think the average planetary temperatures may rise by 4°C or so by 2050. This is probably true since Antarctic ice cores evidence indicates that, over the last 160000 years, ice ages coincided with reduced levels of carbon dioxide and warmer interglacial episodes with increased levels of the gas in the atmosphere. Consequently, such an elevation of temperature over such a relatively short span of time would have catastrophic results in terms of rising sea level and associated flooding of vast tracts of low-lying lands. Reducing the burning of fossil fuels makes sense on both economic and environmental grounds. One of the most attractive alternatives is geothermal resources, especially in developing countries, for instance in El Salvador where geothermal energy provides about a fifth of total installed electrical power already. In fact, by the middle 1980s, at least 121 geothermal power plants were operating worldwide, most being of the dry steam type.
Download or read book Soil Quality for Crop Production and Ecosystem Health written by E.G. Gregorich and published by Elsevier. This book was released on 1997-11-10 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is a complex body that exists as many types, each with diverse properties that may vary widely across time and space as a function of many factors. This complexity makes the evaluation of soil quality much more challenging than that of water or air quality. Evaluation of soil quality now considers environmental implications as well as economic productivity, seeking to be more holistic in its approach.Thus, soil quality research draws from a wide range of disciplines, blending the approaches of biologists, physicists, chemists, ecologists, economists and agronomists, among others.This book presents a broad perspective of soil quality that includes these various perspectives and gives a strong theoretical basis for the assessment of soil quality.A short glossary provides definitions for terms used throughout the book.
Download or read book Manga High written by Michael Bitz and published by Harvard Education Press. This book was released on 2009-05-01 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a four-year study, Manga High explores the convergence of literacy, creativity, social development, and personal identity in one of New York City’s largest high schools. Since 2004, students at Martin Luther King, Jr., High School in Manhattan have been creating manga—Japanese comic books. They write the stories, design the characters, and publish their works in print and on the Internet. These students—African-American and Latino teenagers—are more than interested in the art and medium of manga. They have become completely engrossed in Japanese language, culture, and society. Manga High is highlighted by reproductions and content analysis of students’ original art and writing. An appendix includes guidelines for educators on starting a comic book club.
Download or read book The Bureau of Mines written by United States. Bureau of Mines and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dante written by Leigh Hunt and published by . This book was released on 1846 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contrastive Phraseology written by Paola Cotta Ramusino and published by Cambridge Scholars Publishing. This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is addressed to researchers in the field of phraseology, and to teachers, translators and lexicographers. It is a collection of essays offering a comprehensive, modern analysis of phrasemes, embracing a wide range of subjects and themes, from linguistic, both applied and theoretical, to cultural aspects. The contrastive approach underlying this variety of themes allows the divergences and analogies between phraseological units in two or more languages to be outlined. The languages compared here are both major and minor, European and non-European, and the text includes contrastive analyses of the most commonly investigated languages (French-German, English-Spanish, Russian-German), as well as some less frequently investigated languages (like Ukrainian, Romanian, Georgian and Thai), which are not as well-represented in phraseological description, despite their scientific interest.
Download or read book Transport in Plants I written by M.H. Zimmermann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: When WILHELM RUHLAND developed his plan for an Encyclopedia of Plant Physiol ogy more than three decades ago, biology could still be conveniently subdivided into classical areas. Even within plant physiology, subdivisions were not too difficult to make, and general principles could be covered sufficiently in the two introductory volumes of the Encyclopedia on the physical and chemical basis of cell biology. But the situation changed rapidly even during the 12-year publication period of the Encyclopedia (1955-1967). The new molecular direction of genetics and structural research on biopolymers had an integrating effect on all other biological fields, including plant physiology, and it became increasingly difficult to keep previously distinct areas separated. RUHLAND'S overall plan included 18 volumes and about 22,000 pages. It covered the entire field of plant physiology, in most cases from the very beginning. But, as each volume appeared, it was clear that its content would soon be outdated.
Download or read book Aves de piedra barro y oro en la Costa Rica precolombina written by Patricia Fernández Esquivel and published by . This book was released on 2009 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: A scholarly and physically stunning presentation of the use of bird imagery in pre-Columbian Costa Rican art, with an equal balance of photos and text. Includes indigenous culture, contemporary links, and comparative photos of artifacts and actual birds
Download or read book Microbial Taxonomy Phylogeny and Biodiversity written by Jesús L. Romalde and published by Frontiers Media SA. This book was released on 2019-12-31 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The great diversity of microbial life is the remaining major reservoir of unknown biological diversity on earth. To understand this vast, but largely unperceived diversity with its untapped genetic, enzymatic and industrial potential, microbial systematics is undergoing a revolutionary change in its approach to describe novel taxa based on genomic/envirogenomic information. The characterization of an organism is no longer bounded by methodological barriers, and it is now possible to fully sequence the whole genome of a strain to study individual genes, or to examine the genetic information by using different techniques. In fact, application of genomics is helping not only to provide a better understanding of the boundaries of genera and higher levels of classification, but also to refine our definition of the species concept. In addition, increased understanding of phylogeny is allowing to predict the genetic potential of microorganisms for biotechnological applications and adaptation to environmental changes. The present Research Topic on “Microbial Taxonomy, Phylogeny and Biodiversity” compiles a collection of papers covering the use of genomic sequence data in microbial taxonomy and systematics, including evolutionary relatedness of microorganisms; application of comparative genomics in systematic studies; or metagenomic approaches for biodiversity studies. We hope that this eBook incentives and encourages researchers for future discussions on microbial taxonomy and phylogenetics.
Download or read book Clays in Natural and Engineered Barriers for Radioactive Waste Confinement written by S. Norris and published by Geological Society of London. This book was released on 2014-10-24 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Publication contains 43 scientific studies presented at the 5th conference on ‘Clays in natural and engineered barriers for radioactive waste confinement’ held in Montpellier, France in 2012. The conference and this resulting volume cover all the aspects of clay characterization and behaviour considered at various temporal and spatial scales relevant to the confinement of radionuclides in clay, from basic phenomenological process descriptions to the global understanding of performance and safety at repository and geological scales. Special emphasis has been given to the modelling of processes occurring at the mineralogical level within the clay barriers. The papers in this Special Publication consider research into argillaceous media under the following topic areas: large-scale geological characterization; clay-based concept/large-scale experiments; hydrodynamical modelling; geochemistry; geomechanics; mass transfer/gas transfer; mass transfer mechanisms. The collection of different topics presented in this Special Publication demonstrates the diversity of geological repository research.
Download or read book Soils of Arid Regions written by Harold Ernest Dregne and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nature and History in Modern Italy written by Marco Armiero and published by Ohio University Press. This book was released on 2010-08-31 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marco Armiero is Senior Researcher at the Italian National Research Council and Marie Curie Fellow at the Institute of Environmental Sciences and Technologies, Universitat Aut(noma de Barcelona. He has published extensively on-Italian environmental history and edited Views from the South: Environmental Stories from the Mediterranean World. --
Download or read book INFOODS Food Composition Data Interchange Handbook written by John C. Klensin and published by . This book was released on 1992 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Botany of Mangroves written by P. B. Tomlinson and published by Cambridge University Press. This book was released on 1994 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise, descriptive overview of mangrove plants, with emphasis on individual species.
Download or read book Ceramic Materials written by Dolores Eliche Quesada and published by BoD – Books on Demand. This book was released on 2019-03-20 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific and technological development has led to the formulation of tailor-made materials, which have given rise to materials with new structural and industrial applications. This book aims to analyze the synthesis, characterization, and applications of ceramic materials. This includes an introduction to traditional and advanced ceramics, the use of traditional ceramic materials as ideal candidates for absorbing wastes, and the synthesis and characterization of advanced ceramics as nanoceramics, ytria ceramics, and electronic ceramics.
