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Plant classifications are based on morphological characters and it is difficult, particularly in small plants and grasses, to identify these below generic level on the basis of these characters using a dissecting microscope. Plant species have intra- and inter-specific variation in secondary metabolites which can be utilized as marker compounds for identification and classification of plants. Secondary metabolites are produced as a result of primary metabolism and the production of these compounds not only involves several genes but also it is an energy dependent process. Hence these products cannot be considered as insignificant for the plant and the environment. Modern tools of molecular b...
Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.
This book is designed to cover one year's work in Hebrew leading up to a full understanding of the language. It has been used by the author with his students for many years and the published text is the result of testing and refining over these years.Every attempt has been made to make the grammar clear and simple. For example, all Hebrew words are transliterated, as well as being given in the original for the first three-quarters of the book. The grammatical discussion is made as unsophisticated as possible for it is the author's intention that this book should also be of use to those who study Hebrew without a teacher.
This book draws together the latest findings on the hydrological processes, community organization, and stress physiology of freshwater, tidally influenced land-margin forests of the southeastern United States. It describes the land use history that led to the restricted distribution of these wetlands, and provides descriptions of the hydrology, soils, biogeochemistry, and physiological ecology of these systems, highlighting the similarities shared among tidal freshwater forested wetlands.
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Presents a directory of Web sites on world music, provided by About.com, Inc. Offers access to festival information, online shopping areas, news items, publications, and resources on music in various countries.
The first ever 4th edition from the world's most trusted course - New Headway Pre Intermediate, completely rewritten and packed with new material.
Exposure to particles in industry and mining and from accidental anthropogenic sources constitutes an ongoing threat. Most recently nanoparticles arising from advances in technology are exposing a wider population to pathogenic stimuli. The effects of inhaled particles are no longer confined to the lung as nanoparticles have the potential to transl
International Maritime Security Law by James Kraska and Raul Pedrozo defines an emerging interdisciplinary field of law and policy comprised of norms, legal regimes, and rules to address today's hybrid threats to the global order of the oceans. Worldwide shipping commerce, fishing fleets, pleasure craft, and coastal states are exposed to the menace of offshore terrorism, weapons of mass destruction, piracy, smuggling, robbery, marine insurgency and anti-access threats. Land-based institutions and maritime constabulary forces operate within an increasingly integrated network that blends elements of humanitarian law, human rights law, criminal law, and law of the sea, with inspection regimes, commercial enterprise, and marine safety and environmental stewardship. The new authorities fuse together a global maritime partnership among states, international organizations and commercial interests to protect the maritime commons from the most dangerous risks and hazards.
Pamela Gillilan was born in London in 1918, married in 1948 and moved to Cornwall in 1951. When she sat down to write her poem Come Away after the death of her husband David, she had written no poems for a quarter of a century. Then came a sequence of incredibly moving elegies. Other poems followed, and two years after starting to write again, she won the Cheltenham Festival poetry competition. Her first collection That Winter (Bloodaxe, 1986) was shortlisted for the Commonwealth Poetry Prize.