Download or read book Phytochemical Methods written by Jeffrey B. Harborne and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there are many books available on methods of organic and biochemical analysis, the majority are either primarily concerned with the application of a particular technique (e.g. paper chromatography) or have been written for an audience of chemists or for biochemists work ing mainly with animaltissues. Thus, no simple guide to modern metho ds of plant analysis exists and the purpose of the present volume is to fill this gap. It is primarily intended for students in the plant sciences, who have a botanical or a general biological background. It should also be of value to students in biochemistry, pharmacognosy, food science and 'natural products' organic chemistry. Most books on chromatography, while admirably covering the needs of research workers, tend to overwhelm the student with long lists of solvent systems and spray reagents that can be applied to each class of organic constituent. The intention here is to simplify the situation by listing only a few specially recommended techniques that have wide currency in phytochemical laboratories. Sufficient details are provided to allow the student to use the techniques for themselves and most sections contain some introductory practical experiments which can be used in classwork.
Download or read book Neuropeptide Systems as Targets for Parasite and Pest Control written by Timothy G. Geary and published by Springer Science & Business Media. This book was released on 2011-01-13 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to continually discover new agents for the control or treatment of invertebrate pests and pathogens is undeniable. Agriculture, both animal and plant, succeeds only to the extent that arthropod and helminth consumers, vectors and pathogens can be kept at bay. Humans and their companion animals are also plagued by invertebrate parasites. The deployment of chemical agents for these purposes inevitably elicits the selection of resistant populations of the targets of control, necessitating a regular introduction of new kinds of molecules. Experience in other areas of chemotherapy has shown that a thorough understanding of the biology of disease is an essential platform upon which to build a discovery program. Unfortunately, investment of research resources into understanding the basic physiology of invertebrates as a strategy to illuminate new molecular targets for pesticide and parasiticide discovery has been scarce, and the pace of introduction of new molecules for these indications has been slowed as a result. An exciting and so far unexploited area to explore in this regard is invertebrate neuropeptide physiology. This book was assembled to focus attention on this promising field by compiling a comprehensive review of recent research on neuropeptides in arthropods and helminths, with contributions from many of the leading laboratories working on these systems.
Download or read book Made to Break written by Giles Slade and published by Harvard University Press. This book was released on 2009-06-30 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Made to Break is a history of twentieth-century technology as seen through the prism of obsolescence. Giles Slade explains how disposability was a necessary condition for America's rejection of tradition and our acceptance of change and impermanence. This book gives us a detailed and harrowing picture of how, by choosing to support ever-shorter product lives, we may well be shortening the future of our way of life as well.
Download or read book Seed Trade Buyers Guide written by and published by . This book was released on 1921 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Boy s Book of New Inventions written by Harry E. Maule and published by Prabhat Prakashan. This book was released on 2021-01-01 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: "IN THE preparation of this book the author has tried to give an interesting account of the invention and workings of a few of the machines and mechanical processes that are making the history of our time more wonderful and more dramatic than that of any other age since the world began. For heroic devotion to science in the face of danger and the scorn of their fellowmen, there is no class who have made a better record than inventors. Most inventions, too, are far more than scientific calculation, and it is the human story of the various factors in this great age of invention that is here set forth for boy readers." -Preface
Download or read book The Afghan Wars 1839 42 and 1878 80 written by Archibald Forbes and published by IndyPublish.com. This book was released on 1892 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide.
Download or read book The new Woman Revised written by Ellen Wiley Todd and published by Univ of California Press. This book was released on 1993-01-01 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the years between the world wars, Manhattan's Fourteenth Street-Union Square district became a center for commercial, cultural, and political activities, and hence a sensitive barometer of the dramatic social changes of the period. It was here that four urban realist painters--Kenneth Hayes Miller, Reginald Marsh, Raphael Soyer, and Isabel Bishop--placed their images of modern "new women." Bargain stores, cheap movie theaters, pinball arcades, and radical political organizations were the backdrop for the women shoppers, office and store workers, and consumers of mass culture portrayed by these artists. Ellen Wiley Todd deftly interprets the painters' complex images as they were refracted through the gender ideology of the period. This is a work of skillful interdisciplinary scholarship, combining recent insights from feminist art history, gender studies, and social and cultural theory. Drawing on a range of visual and verbal representations as well as biographical and critical texts, Todd balances the historical context surrounding the painters with nuanced analyses of how each artist's image of womanhood contributed to the continual redefining of the "new woman's" relationships to men, family, work, feminism, and sexuality.
Download or read book From Puritanism to Postmodernism written by Richard Ruland and published by Routledge. This book was released on 2016-04-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely acknowledged as a contemporary classic that has introduced thousands of readers to American literature, From Puritanism to Postmodernism: A History of American Literature brilliantly charts the fascinating story of American literature from the Puritan legacy to the advent of postmodernism. From realism and romanticism to modernism and postmodernism it examines and reflects on the work of a rich panoply of writers, including Poe, Melville, Fitzgerald, Pound, Wallace Stevens, Gwendolyn Brooks and Thomas Pynchon. Characterised throughout by a vibrant and engaging style it is a superb introduction to American literature, placing it thoughtfully in its rich social, ideological and historical context. A tour de force of both literary and historical writing, this Routledge Classics edition includes a new preface by co-author Richard Ruland, a new foreword by Linda Wagner-Martin and a fascinating interview with Richard Ruland, in which he reflects on the nature of American fiction and his collaboration with Malclolm Bradbury. It is published here for the first time.
Download or read book A Handbook of Global Freshwater Invasive Species written by Robert A. Francis and published by Routledge. This book was released on 2017-08-11 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive non-native species are a major threat to global biodiversity. Often introduced accidentally through international travel or trade, they invade and colonize new habitats, often with devastating consequences for the local flora and fauna. Their environmental impacts can range from damage to resource production (e.g. agriculture and forestry) and infrastructure (e.g. buildings, road and water supply), to human health. They consequently can have major economic impacts. It is a priority to prevent their introduction and spread, as well as to control them. Freshwater ecosystems are particularly at risk from invasions and are landscape corridors that facilitate the spread of invasives. This book reviews the current state of knowledge of the most notable global invasive freshwater species or groups, based on their severity of economic impact, geographic distribution outside of their native range, extent of research, and recognition of the ecological severity of the impact of the species by the IUCN. As well as some of the very well-known species, the book also covers some invasives that are emerging as serious threats. Examples covered include a range of aquatic and riparian plants, insects, molluscs, crustacea, fish, amphibians, reptiles and mammals, as well as some major pathogens of aquatic organisms. The book also includes overview chapters synthesizing the ecological impact of invasive species in fresh water and summarizing practical implications for the management of rivers and other freshwater habitats.
Download or read book The Peaches of New York written by U. P. Hedrick and published by . This book was released on 1917 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Good beekeeping practices for sustainable apiculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2021-09-21 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bees provide a critical link in the maintenance of ecosystems, pollination. They play a major role in maintaining biodiversity, ensuring the survival of many plants, enhancing forest regeneration, providing sustainability and adaptation to climate change and improving the quality and quantity of agricultural production systems. In fact, close to 75 percent of the world’s crops that produce fruits and seeds for human consumption depend, at least in part, on pollinators for sustained production, yield and quality. Beekeeping, also called apiculture, refers to all activities concerned with the practical management of social bee species. These guidelines aim to provide useful information and suggestions for a sustainable management of bees around the world, which can then be applied to project development and implementation.
Download or read book Cactus and Succulent Plants written by Sara Oldfield and published by World Conservation Union. This book was released on 1997-01 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Found in a variety of forms, cacti and other succulents have elicited widespread interest and tremendous popularity worldwide. Although the subject of a certain amount of debate, about 10,000 species are recognized as belonging to the succulent group. Of these, an estimated 2,000 are threatened with global extinction in the wild and many more are regionally or nationally threatened mainly due to habitat destruction and collection for international trade.This Action Plan brings together from around the world current information on population status, threats and conservation of this particularly important group of plants. Prepared with conservationists, scientists, governments, protected area managers and grant-awarding bodies in mind, it suggests priorities for action and encourages collaboration among interested parties at all levels.
Download or read book The Brass Check written by Upton Sinclair and published by Pasasena, Calif., The author. This book was released on 1920 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journeys and Experiences in Argentina Paraguay and Chile written by Henry Stephens and published by Good Press. This book was released on 2021-05-19 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Journeys and Experiences in Argentina, Paraguay, and Chile is a travelogue by Henry Stephens. It covers the destinations in the title as well as trips to the Paraguay River in Brazil and the Rio Tambo in Peru.
Download or read book Battle for Beijing 1858 1860 written by Harry Gelber and published by Springer. This book was released on 2016-09-16 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ‘battle for Beijing’ is universally – and quite wrongly – believed to have been about opium. This book argues that it was about freedom to trade, Britain’s demands for diplomatic equality, and French demands for religious freedom in China. Both countries agreed that their armies, which repeatedly prevailed over Chinese ones that were numerically superior, would stay out of Beijing itself, but were infuriated by China’s imprisonment, torture and death of British, French and Indian negotiators. At the same time, the British and French also helped the empire to battle rebels and to pocket port and harbour dues. They steered carefully between their political and trading demands, and navigated the danger that undue stress would make China’s fragile government and empire fall apart. If it did, there would be no one to make any kind of agreement with; much of East Asia would be in chaos and Russian power would soon expand. Battle for Beijing, 1858–1860 offers fresh insights into the reasons behind the actions and strategies of British authorities, both at home and in China, and the British and French military commanders. It goes against the widely accepted views surrounding the Franco-British conflict, proposing a bold new argument and perspective.
Download or read book Vulnerability and Adaptation to Drought written by Harry P. Diaz and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although there is considerable historical literature describing the social and economic impact of drought on the prairies in the 1930s, little has been written about the challenges presented by drought in more contemporary times. The drought of 2001-02 was, for example, the most recent large-area, intense, and prolonged drought in Canada and one of Canada's most costly natural disasters in a century. Vulnerability and Adaptation to Drought on the Canadian Prairies describes the impacts of droughts and the adaptations made in prairie agriculture over recent decades. These adaptations have enhanced the capacity of rural communities to withstand drought. However, despite the high levels of technical adaptation that have occurred, and the existing human capital and vibrant social and information networks, agricultural producers in the prairie region remain vulnerable to severe droughts that last more than a couple of years. Research findings and projections suggest that droughts could become more frequent, more seveare, and of longer duration in the region over the course of the 21st century. This book provides insights into the conditions generating these challenges and the measures required to reduce vulnerability of prairie communities to them. This volume develops a greater understanding of the social forces and conditions that have contributed to enhanced resilience, as well as those which detract from successful adaptation and examines drought through an interdisciplinary lens encompassing climate science and the social sciences
Download or read book Planning Sustainable Cities written by United Nations Human Settlements Programme and published by Routledge. This book was released on 2009 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication reviews recent urban planning practices and approaches, discusses constraints and conflicts therein, and identifies innovative approaches that are more responsive to current challenges of urbanization. It notes that traditional approaches to urban planning (particularly in developing countries) have largely failed to promote equitable, efficient and sustainable human settlements and to address twenty-first century challenges, including rapid urbanization, shrinking cities and aging, climate change and related disasters, urban sprawl and unplanned peri-urbanization, as well as urbanization of poverty and informality. It concludes that new approaches to planning can only be meaningful, and have a greater chance of succeeding, if they effectively address all of these challenges, are participatory and inclusive, as well as linked to contextual socio-political processes.--Publisher's description
