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Sediment Toxicity Assessment

by G.Allen Burton

Sediment Toxicity Assessment provides the latest information regarding how to evaluate sediment contamination and its effects on aquatic ecosystems. It presents an integrated ecosystem approach by detailing effective assessment methods, considerations, and effects to each major component of marine and freshwater systems, including the benthos, plankton, and fish communities. The approaches emphasize defining habitat conditions (physical and chemical), toxicant bioavailability, factors influencing toxicity (lab and field), biomarkers, acute and chronic toxicity, study design, collection methods, and EPA management strategies. The book also explains how to integrate the assessments.Sediment Toxicity Assessment will be useful to to all environmental managers, environmental scientists, ecotoxicologists, environmental regulators, aquatic ecologists, environmental contractors and consultants, instructors, students, conservation commissions, and environmental activist organizations.

Sediment Transport Dynamics

by Weiming Wu

This book focuses on the fundamentals of sediment transport in surface waters. It covers sediment properties, open channel flows, sediment particle settling, incipient motion, bed forms, bed load, suspended load, total load, cohesive sediments, water-sediment two-phase flows, hyperconcentrated flows, debris flows, wave-induced sediment transport, turbidity currents, and physical modeling. Besides the primary context of river sedimentation, this book extensively covers sediment transport under coexisting waves and currents in coasts and estuaries, hyperconcentrated and debris flows in rivers, as well as turbidity currents in lakes, reservoirs, channels, and the ocean. It includes a chapter on the water-sediment two-phase flow theory, which is considered the basis of many sediment transport models. It introduces some special topics have that emerged in recent years, such as the transport of mixed cohesive and noncohesive sediments, biofilm-coated sediments, and infiltrated sand within gravel and cobble beds. The text merges classical and new knowledge of sediment transport from various sources in English and non-English literature and includes important contributions made by many scientists and engineers from all over the world. It balances the breadth, depth, fundamental importance, practical applicability, and future advancement of the covered knowledge, and can be used as a text and reference book. The chapters are arranged in a useful sequence for teaching purposes. Certain homework problems are prepared, which also highlight the important topics for instructors to select. Solutions to homework problems are available from the author by request.

Sediment Transport and Morphodynamics Modelling for Coasts and Shallow Environments

by Vanesa Magar

This reference for engineers, and graduate students covers sediment transport and morphodynamics modelling in nearshore environments. It presents the fundamentals required for understanding the physics and for setting up numerical models. This book covers hydrodynamics of estuarine and coastal environments, properties of seafloor and estuarine composition, and hydroenvironmental interactions; emphasising the inter-relations of small- and large-scale processes, and short- and large-evolution timescales. The focus is, principally, on the application of shallow-water theory, but some surface wave models, and coupling of shallow-water models with surface waves is also discussed to some extent. The guidance on running regional models and the case studies presented are directed to managed realignment, coastal protection, climate change impacts, and offshore renewables. Key features: Gives a balanced review of this rich interdisciplinary area Bridges practical engineering and research Offers both large- and small-scale application Suits graduate students and researchers as well as consulting engineers Vanesa Magar is a senior researcher and associate professor at the Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) in Baja California, Mexico. She was formerly a researcher and then a lecturer at Plymouth University, UK.

Sediment Transport in Irrigation Canals: A New Approach (IHE Delft Lecture Note Series)

by Herman Depeweg Krishna P. Paudel Néstor Méndez V

Sediment transport in irrigation canals influences to a great extent the sustainability of an irrigation system. Unwanted erosion or deposition will not only increase maintenance costs, but may also lead to unfair, unreliable and unequitable distribution of irrigation water to the end users. Proper knowledge of the characteristics, including behaviour and transport of sediment will help to design irrigation systems, plan effi cient and reliable water delivery schedules, to have a controlled deposition of sediments, to estimate and arrange maintenance activities, etc. The main aim of these lecture notes is to present a detailed analysis and physical and mathematical descriptions of sediment transport in irrigation canals and to describe the mathematical model SETRIC that predicts the sediment transport, deposition and entrainment rate as function of time and place for various flow conditions and sediment inputs. The model is typically suited for the simulation of sediment transport under the particular conditions of non-wide irrigation canals where the flow and sediment transport are strongly determined by the operation of the flow control structures. The lecture notes will contribute to an improved understanding of the behaviour of sediments in irrigation canals. They will also help to decide on the appropriate design of the system, the water delivery plans, to evaluate design alternatives and to achieve an adequate and reliable water supply to the farmers.

Sediment and Contaminant Transport in Surface Waters

by Wilbert Lick

Contaminated bottom sediments and their negative impacts on water quality are a major problem in surface waters throughout the United States as well as in many other parts of the world. Even after elimination of the primary contaminant sources, these bottom sediments will be a main source of contaminants for many years to come. In order to determin

Sedimentary Crisis at the Global Scale 1: Large Rivers, From Abundance to Scarcity

by Jean-Paul Bravard

The Earth’s oceans are currently undergoing unprecedented changes: rivers have suffered a severe reduction in their sediment transport, and as a result, sediment input to the oceans has dropped lower than ever before. These inputs have varied over millennia as a result of both natural occurrences and human actions, such as the building of dams and the extraction of materials from riverbeds. Sedimentary Crisis at the Global Scale 1 examines how river basins have been affected by the sedimentary crises of various historical epochs. By studying global balances, it provides insights into the profound disruption of the solid transport of fluvial bodies. The book also explores studies of various rivers, from the Amazon, which remains relatively unaffected, to dying rivers such as the Colorado and the Nile.

Sedimentary Crisis at the Global Scale 2: Deltas, A Major Environmental Crisis

by Jean-Paul Bravard

The great deltas of the globe have been threatened for several decades but their decline now appears to be inevitable; they are receding and losing the fertility that supports their tens of millions of inhabitants. Our deltas are victims of the dramatic deterioration in the volume of continental sediment brought by rivers to the oceans.By nature, deltas are fragile eco- and geological organisms. For centuries, they have been subject to human actions in the Mediterranean and European world, and today a deep crisis is affecting the great tropical deltas. A chapter is also devoted to concerns facing the Mississippi, an “aging delta of the new world”.Sedimentary Crisis at the Global Scale 2 discusses possible strategies to protect the deltas of the world – or at least adapt them and their dependencies to the changes they face. Several models are possible, including comprehensive protection (such as in the Netherlands) and cautious and respectful opening to the forces of the oceans in an environment-first perspective.

Sedimentation Processes in the White Sea: The White Sea Environment Part II (The Handbook of Environmental Chemistry #82)

by Liudmila L. Demina Alexander P. Lisitsyn

This book presents a new perspective on the sedimentation processes in the White Sea, based on a multidisciplinary research study conducted between 2001 and 2016. It provides a comprehensive review and discusses the latest research findings on the ecosystem of this sub-arctic zone.The topics addressed include suspended particulate matter as a main source and proxy of the sedimentation processes in the White Sea; vertical fluxes of dispersed sedimentary matter and absolute masses in the White Sea; and the development history and quaternary deposits of the modern White Sea basin. The authors closely examine the abundance and species composition of microalgae associations and the environmental conditions in the bottom sediments of the White Sea, namely, heavy metal accumulation and aliphatic and polycyclic aromatic hydrocarbons. The book ends contain a summary of the key conclusions and recommendations. Together with the companion volume Biogeochemistry of the Atmosphere, Ice and Water of the White Sea: The White Sea Environment Part I, it offers an essential source of information for postgraduate students, researchers, and stakeholders alike.

Sedimentation Velocity Analytical Ultracentrifugation: Discrete Species and Size-Distributions of Macromolecules and Particles

by Peter Schuck

A follow-up to the experimental and instrumental aspects described in Basic Principles of Analytical Ultracentrifugation, the volume Sedimentation Velocity Analytical Ultracentrifugation: Discrete Species and Size-Distributions of Macromolecules and Particles describes the theory and practice of data analysis. Mathematical models for the sedimentation process and the evolution of detected signals are developed in a comprehensive framework, jointly with the description of current and historical strategies for how to extract from noisy experimental data the physical parameters of interest, such as size, mass, and shape, composition, and polydispersity of sedimenting particles. The methods are extensively illustrated, and supported with practical applications, as well as cross-references where to find the methods in the public domain software SEDFIT and SEDPHAT. The systems covered are discrete or polydisperse mixtures of sedimenting molecules or particles in dilute solution, such as proteins and other biomolecules and their stable complexes, man-made polymers, and nanoparticles, observed in different optical systems. A useful reference for researchers and graduate students of macromolecular disciplines, these methods form the essential foundation for the analysis of dynamic interacting systems, which are covered in the volume Sedimentation Velocity Analytical Ultracentrifugation: Interacting Systems. Software referenced in the book is available for download at: https://sedfitsedphat.nibib.nih.gov/default.aspx

Sedimentation Velocity Analytical Ultracentrifugation: Interacting Systems

by Peter Schuck Huaying Zhao

Analytical ultracentrifugation is one of the most powerful solution techniques for the study of macromolecular interactions, to define the number and stoichiometry of complexes formed, and to measure affinities ranging from very strong to very weak and repulsive. Building on the data analysis tools described in the volume Sedimentation Velocity Analytical Ultracentrifugation: Discrete Species and Size-Distributions of Macromolecules and Particles, and the experimental and instrumental aspects in the first volume Basic Principles of Analytical Ultracentrifugation, the present volume Sedimentation Velocity Analytical Ultracentrifugation: Interacting Systems is devoted to the theory and practical data analysis of dynamically coupled sedimentation processes. This volume is designed to fill a gap in biophysical methodology to provide a framework that builds on the fundamentals of the highly developed traditional methods of analytical ultracentrifugation, updated with current methodology and from a viewpoint of modern applications. It will be an invaluable resource for researchers and graduate students interested in the application of analytical ultracentrifugation in the study of interacting systems, such as biological macromolecules, multi-protein complexes, polymers, or nanoparticles.

Sedimentation: Exclusion and Removal of Sediment from Diverted Water (Iahr Design Manual Ser. #6)

by Arved J. Raudkivi

This monograph provides the practising engineer with a concise overview of the methods of water diversion and exclusion or removal of sediment from the diverted water. The emphasis is on flow features and the associated conveyance of sediments.

Sediments Contamination and Sustainable Remediation

by Catherine N. Mulligan Masaharu Fukue Yoshio Sato

Although valuable resources in river basins and other aqueous environments, sediments often receive much less attention from researchers, policymakers, and other professionals than other components of the ecosystem. Until now. Highlighting the important role that sediments play in the geoenvironment, Sediments Contamination and Sustainable Remediat

Sediments in the Tema Harbour: Chemical Pollution and Sedimentation Rates (IHE Delft PhD Thesis Series)

by Benjamin O. Botwe

Sediment pollution and accumulation in harbours are major environmental issues and studies that advance their solutions are essential for harbour sustainability. This book provides the first comprehensive assessment of chemical pollution in sediments and sediment accumulation rates in the tropical Tema Harbour (Ghana). This book contributes to improving our ability to use an integrated approach involving sediment chemistry and bioassays in one comprehensive assessment of the contamination state of a tropical coastal environment. Whole-sediment toxicity bioassays using the amphipod Corophium volutator and the polychaete Hediste diversicolor as bioindicators were combined with data on concentrations of total metal and metal binding forms, radionuclides, organochlorine pesticides and polycyclic aromatic hydrocarbons in bottom sediments as well as total metal concentrations in settling silt-clay particles collected by sediment traps to characterise the hazard, risk and impact of sediments from the tropical coastal Tema Harbour.

Sediments: Chemistry and Toxicity of In-Place Pollutants

by Renato Baudo

This important volume-the product of a meeting of a select group of scientists-provides the most recent research results from the world's leaders in the study of toxic pollutants in sediments.It gives practical information on measuring and mapping distributions of concentrations of pollutants and their toxic effects in sediments. Also covered are the use and relative advantages and disadvantages of benthic chambers, sedimentation traps, box corers, "peepers" and other sampling techniques in sediment research and assessment.Important topics covered include: bioassay, elemental speciation, diffuse source problems, nutrient flux, biomethylation, bioavailability, and toxicity assessment.Will help in assessment and monitoring of chemistry, dynamics, bioavailability, and toxicity of pollutants, as well helping to chart courses for remedial action.This book will be of interest to anyone interested in the processes controlling the chemistry and movement of pollutants in sediments, especially:limnologistsaquatic toxicologistsengineerslake managersecologistsbiologistsenvironmental chemists

See How They Grow Pets (See How They Grow)

by DK

Let your little nature lover follow their favorite animals as they grow and change in the first weeks and months of their lives.This children&’s picture book is a must for fans of cute pets! Your child will meet a lovable puppy, a fluffy kitten, a delightful baby rabbit and many more in this charming introduction to animal life stages. Perfect for preschool children ages 3-5, this adorable animal book captures in beautiful detail how animals grow and develop. It's packed with: • Five different young animals at different stages of their early lives. • Beautiful photography and text that will help instill a lifelong love of animals, nature and books. • &“Puppy&” spreads that feature brand-new photography. Ready, set, grow! This wonderful activity book brings baby animals to life through beautiful, crisp photography. It follows them through their early lives — from helpless newborns to confident, curious creatures on the cusp of adulthood. See a bunny growing fur, kittens learning to hunt and a puppy playing with toys.Packed with fun facts and delightful read-aloud text, this nature book is ideal for developing your child's vocabulary. It has lots of opportunities for parent-and-child interaction and hours of baby animal fun! It's the ultimate bedtime storybook for little animal lovers.Your budding zoologist can discover how other wonderful animals grow too! Look out for more titles in this elegant series of children&’s educational books from DK like See How They Grow Kitten, See How They Grow Bunny/Rabbit, and See How They Grow Pony/Foal.

See How They Grow: Farm (See How They Grow)

by DK

Let your little one follow their favorite baby animals as they grow and change! Go on a farm adventure like no other! Along the way, you&’ll meet a little lamb, a darling duckling, a playful piglet, and more in this adorable introduction to animal life stages. If there&’s one thing kids can&’t get enough of, it&’s baby animals. In this series of three engaging children&’s books, baby farm animals come to life through exquisite, crisp photography that shows the early stages of their lives. From a helpless newborn to a confident, curious creature on the cusp of adulthood, this charming animal book captures in beautiful detail how farm animals grow and develop. Perfect for children aged 3–5 years, See How They Grow: Farm will instill a lifelong love of animals, nature, and reading.Ready, Set, Grow! A series of clear photographs show the same animal at several different stages in its early life. Your child can discover how a chick hatches from its egg and how a duckling&’s feathers turn from yellow to white. Packed with fun facts and easy-to-follow text, this nature book is ideal for reading aloud and developing your child&’s vocabulary. This activity book provides lots of opportunities for parent-and-child interaction and hours of farm animal fun! It&’s the ultimate bedtime storybook for little animal-lovers. Complete the Series:Let your budding zoologist discover how other wonderful animals grow and change! Look out for more titles in this elegant series from DK Books such as See How They Grow: Pets, See How They Grow: Woodland Animals, and See How They Grow: Zoo Animals.

See It with a Small Telescope: 101 Cosmic Wonders Including Planets, Moons, Comets, Galaxies, Nebulae, Star Clusters and More

by Will Kalif

Have Fun Exploring the Stars with Close-up Views of Space Objects Right from Your Own BackyardTake the mystery and struggle out of discovering new worlds. With hands-on tips, tricks and instructions, this book allows you to unleash the full power of your small telescope and view amazing space objects right from your own backyard, including:• Saturn&’s Rings• Jupiter&’s Moons• Apollo 11's Landing Site• Orion Nebula• Andromeda Galaxy• Polaris Double Star• Pegasus Globular Cluster• And much, much more!

See Right Through Me

by Savvas Andronikou

This atlas demonstrates all components of the body through imaging, in much the same way that a geographical atlas demonstrates components of the world. Each body system and organ is imaged in every plane using all relevant modalities, allowing the reader to gain knowledge of density and signal intensity. Areas and methods not usually featured in imaging atlases are addressed, including the cranial nerve pathways, white matter tractography, and pediatric imaging. As the emphasis is very much on high-quality images with detailed labeling, there is no significant written component; however, 'pearl boxes' are scattered throughout the book to provide the reader with greater insight. This atlas will be an invaluable aid to students and clinicians with a radiological image in hand, as it will enable them to look up an exact replica and identify the anatomical components. The message to the reader is: Choose an organ, read the 'map,' and enjoy the journey!

See for Yourself!: More Than 100 Amazing Experiments for Science Fairs and School Projects

by Vicki Cobb

With See For Yourself, budding scientists can wow their teachers and classmates (and maybe win a ribbon or two) by learning How to extract DNA from an onion How pigments from vegetables make dye How to make paper out of lint from a clothes dryer How to make a friend feel like he or she has a third hand What happens when you grow yeast in dandruff shampoo That tea and iron pills make excellent inks And much more! See for Yourself includes experiments in the areas of chemistry, earth science, physical science, the human body, and technology, but the experiments all take their inspiration from very familiar places. The materials needed to execute the experiments can all be inexpensively purchased at the supermarket, the toy store, the hardware store, the stationery store, and the drugstore. Some of the experiments are quick and easy, while others are more challenging. Most include additional suggestions so that curious young scientists can keep on investigating.

Seed Activism: Patent Politics and Litigation in the Global South (Food, Health, and the Environment)

by Karine E. Peschard

How lawsuits around intellectual property in Brazil and India are impacting the patentability of plants and seeds, farmers&’ rights, and the public interest.Over the past decade, legal challenges have arisen in the Global South over patents on genetically modified crops. In this ethnographic study, Karine E. Peschard explores the effects of these disputes on people&’s lives, while uncovering the role of power—material, institutional, and discursive—in shaping laws and legal systems. The expansion of corporate intellectual property (IP), she shows, negatively impacts farmers&’ rights and, by extension, the right to food, since small farms produce the bulk of food for domestic consumption. Peschard sees emerging a new legal common sense concerning the patentability of plant-related inventions, as well as a balance among IP, farmers&’ rights, and the public interest.Peschard examines the strengthening of IP regimes for plant varieties, the consolidation of the global biotech industry, the erosion of agrobiodiversity, and farmers&’ dispossession. She shows how litigants question the legality of patents and private IP systems implemented by Monsanto for royalties on three genetically modified crop varieties, Roundup Ready soybean in Brazil and Bt cotton and Bt eggplant in India. Peschard argues that these private IP systems have rendered moot domestic legislation on plant variety protection and farmers&’ rights. This unprecedented level of corporate concentration in such a vital sector raises concerns over the erosion of agricultural biodiversity, farmers&’ rights and livelihoods, food security, and, ultimately, the merits of extending IP rights to higher life forms such as plants.

Seed Biology and Yield of Grain Crops

by Dennis Egli

This new edition of an established title examines the determination of grain crop yield from a unique perspective, by concentrating on the influence of the seed itself. As the food supply for an expanding world population is based on grain crops harvested for their seeds, understanding the process of seed growth and its regulation is crucial to our efforts to increase production and meet the needs of that population. Yield of grain crops is determined by their assimilatory processes such as photosynthesis and the biosynthetic processes in the seed, which are partly regulated within the seed itself. Providing a timely update in this field and highlighting the impact of the seed on grain crop yields, this book: · Describes all aspects of seed growth and development, including environmental and genetic effects on growth rate and length of the filling period. · Discusses the role of the seed in determining the two main yield components: individual seed weight and number of seeds per unit area. · Uses the concepts and models that have been developed to understand crop management and yield improvement. Substantially updated with new research and further developments of the practical applications of the concepts explored, this book is essential reading for those concerned with seed science and crop yield, including agronomists, crop physiologists, plant breeders, and extension workers. It is also a valuable source of information for lecturers and graduate students of agronomy and plant physiology.

Seed Development and Germination (Books In Soils, Plants, And The Environment Ser. #41)

by Jaime Kigel Gad Galili

This text is intended for plant physiologists, molecular biologists, biochemists, biotechnologists, geneticists, horticulturalists, agromnomists and botanists, and upper-level undergraduate and graduate students in these disciplines. It integrates advances in the diverse and rapidly-expanding field of seed science, from ecological and demographic aspects of seed production, dispersal and germination, to the molecular biology of seed development. The book offers a broad, multidisciplinary approach that covers both theoretical and applied knowledge.

Seed Development: OMICS Technologies toward Improvement of Seed Quality and Crop Yield

by Ganesh K. Agrawal Randeep Rakwal

The book is about the seed development in the model and crop plants. Seed development is a key step of the plant life cycle that determines the nutrient value of seeds - the life for human civilization, growth, and development. The nutrient value of seeds is mainly due to storage reserve products such as carbohydrates, lipids (triacylglycerols), and proteins. The book primarily focuses on application of the 21st century high-throughput technologies transcriptomics, proteomics, metabolomics, and systems biology in near complete understanding of the various processes involved in seed development in different crop plants. The book reveals how such technologies have revolutionized our understanding of the multilayer processes and regulations involved therein by generating large-scale datasets. Accumulated datasets provide basic knowledge to develop integrated strategies to eventually improve the nutritional value of plant seed and crop yield, a critical goal in food security issues around the globe.

Seed Dormancy

by Allison R. Kermode

Understanding seed-related processes is of major social, environmental, and economic concern. The viability and vigor of seeds are the very basis for sustainable agriculture and forestry, and comprehending the molecular and cellular events underlying these processes will become increasingly important to many economical sectors and for species that provide the world's food supply. Seed Dormancy: Methods and Protocols covers analytical methods and approaches which have already lead to significant advances in the understanding of seed dormancy and germination. Chapters cover explanations of processes leading to the induction, maintenance, and termination of seed dormancy, the classification of different dormancy types, as well as an overview of protocols used for dormancy-termination of seeds of conifer species. This volume emphasizes methods essential for abscisic acid (ABA) analyses, including methods that have been important for receptor identification, analyses of ABA-catabolizing enzymes (the 8'-hydroxylases), and identification of novel signal transduction components, interacting partners, and/or response factors. The volume closes by addressing the development of new technologies, including spectroscopic methods (some of which allow for non-destructive sampling) as well as highly effective tissue-printing methods for seed dormancy research. Written in the successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Seed Dormancy: Methods and Protocols features detailed methods that will prove invaluable for both applied and fundamental seed research.

Seed Dormancy: Methods and Protocols (Methods in Molecular Biology #2830)

by Naoto Kawakami Kazuhiro Sato

This volume provides basic and state-of-the-art methods for fundamental seed research and practical application. Chapters detail recent seed dormancy studies, basic methods for germination and longevity, seed imaging, sugar, chromatin analyses, QTL analysis, and GWAS protocols for diploid and complex hexaploid species. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, Seed Dormancy: Methods and Protocols aims to ensure successful results in the further study of this vital field.

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Showing 64,651 through 64,675 of 85,579 results