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Duplexsonographie der hirnversorgenden Arterien
by Bernhard Widder Gerhard HamannAls schnelles Diagnoseverfahren ist Ultraschall mittlerweile weit verbreitet. Der Band liefert einen Überblick über das gesamte Gebiet der sonographischen Gefäßdiagnostik an den hirnversorgenden Arterien – einschließlich der klinischen Aspekte. Einstiegslektüre und Nachschlagewerk zugleich, bietet der Band leichte Orientierung durch einheitliche Gliederung in Techniken, Krankheitsbilder, Befunde und Fehlerquellen. Fallbeispiele, Lern- und Arbeitsmittel helfen, die Grundlagen zu verstehen und Befunde zu interpretieren. Mit 300 neuen Abbildungen.
Duplicity Theory of Vision: From Newton to the Present
by Bjørn Stabell Ulf StabellThe duplicity theory of vision concerns the comparisons (both differences and similarities) and interaction between the cone and rod systems in the visual pathways, with the assumption that the cone system is active during daylight vision and the rod system functions in low light (night time). Research on this aspect of vision dates back to the 17th century and the work of Newton, and is still ongoing today. This book describes the origin and development of this fundamental theory within vision research - whilst also examining the Young-Helmholtz trichromatic colour theory, and the opponent colour theory of Hering - and presents evidence and ideas in light of modern conceptions of the theory. Written for academic researchers and graduate students, the book brings back knowledge of the tradition of duplicity theory, inspiring questions related to anatomy, comparative biology, molecular biology, photochemistry, physiology, genetics, phylogenetics and psychophysics.
Durability of Building Materials and Components
by J.M.P.Q. Delgado Vasco Peixoto FreitasDurability of Building Materials and Components provides a collection of recent research works to contribute to the systematization and dissemination of knowledge related to the long-term performance and durability of construction and, simultaneously, to show the most recent advances in this domain. It includes a set of new developments in the field of durability, service life prediction methodologies, the durability approach for historical and old buildings, asset and maintenance management and on the durability of materials, systems and components. The book is divided in several chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues.
Durability of Carbon Fiber Reinforced Plastics
by Jun KoyanagiKoyanagi presents a concise and practical guide to using a micromechanics approach to predict the strength and durability of unidirectionally aligned continuum carbon fiber reinforced plastics (CFRPs).As the use of composite materials in becomes more widespread in various fields, material durability is becoming an increasingly important consideration, particularly with regard to UN Sustainable Development Goals. Using more durable composite materials would help with achieving these goals. Because the failure of composite materials proceeds via the accumulation of micro failures and micro damage, a micromechanics approach is indispensable for estimating precise durability.In this practical guide, Koyanagi describes this approach and explains the precise durability of the composite materials with regard to the time dependence of micro failures. This book first explains the strength and durability of unidirectionally aligned continuum CFRPs. It then individually addresses fiber, resin, and the interface between the two on the basis of their micromechanics and introduces these components’ time and temperature dependences. Koyanagi uses finite element analysis and theoretical models to integrate the characteristics of the three components to explain the macro properties of the CFRPs. Various characteristics regarding strength and durability of CFRPs are also presented.This book is a valuable resource for researchers in academia and industry who work with composite materials. It will enable them to design composite structures, ensure their durability, evaluate them, and develop more durable composite materials.
Durability of Concrete Structures (Building Pathology and Rehabilitation #16)
by J. M. P. Q. DelgadoThis book provides a collection of recent research works, related to structural stability and durability, service life, reinforced concrete structures, recycled materials, and sustainability with endogenic materials. Intended as an overview of the current state of knowledge, the book will benefit scientists, students, practitioners, lecturers and other interested parties. At the same time, the topics covered are relevant to a variety of scientific and engineering disciplines, including civil, materials and mechanical engineering.
Durability of Springs
by Vladimir KobelevThis book highlights the mechanics of the elastic elements made of steel alloys with focus on the metal springs for automotive industry. The industry and scientific organizations study intensively the foundations of design of spring elements and permanently improve the mechanical properties of spring materials. The development responsibilities of spring manufacturing company involve the optimal application of the existing material types. Thus, the task entails in the target-oriented evaluation of the mechanical properties and the subsequent design of the springs, which makes full use of the attainable material characteristics. The book stands as a valuable reference for professionals in practice as well as an advanced learning resource for students of structural and automotive engineering
Dust and Chemistry in Astronomy (Series In Astronomy And Astrophysics Ser. #2)
by T J Millar and D A WilliamsDust is widespread in the galaxy. To astronomers studying stars it may be just an irritating fog, but it is becoming widely recognized that cosmic dust plays an active role in astrochemistry. Without dust, the galaxy would have evolved differently, and planetary systems like ours would not have occurred. To explore and consolidate this active area of research, Dust and Chemistry in Astronomy covers the role of dust in the formation of molecules in the interstellar medium, with the exception of dust in the solar system. Each chapter provides thorough coverage of our understanding of interstellar dust, particularly its interaction with interstellar gas. Aimed at postgraduate researchers, the book also serves as a thorough review of this significant area of astrophysics for practicing astronomers and graduate students.
Dust and Health: Challenges and Solutions (Emerging Contaminants and Associated Treatment Technologies)
by Ali Al-Dousari Muhammad Zaffar HashmiThis book discusses the sources, human health hazards and risk prevention strategies associated with aeolian dust particles (fine and ultrafine) in the atmosphere. It covers the challenges of accurately forecasting aeolian dust and the need to raise public awareness on the warning signs and harmful impacts of airborne dust. Also discussed is the presence of microorganisms, heavy metals and other pollutants in dust which contributes to harmful impacts on human health as well as management and treatment options for the various health issues that can result from exposure. The book is a useful resource for scientists, engineers and policymakers interested in dust and health.
Dust Explosion and Fire Prevention Handbook: A Guide to Good Industry Practices
by Nicholas P. CheremisinoffThis handy volume is a ready “go to” reference for the chemical engineer, plant manager, process engineer, or chemist working in industrial settings where dust explosions could be a concern, such as the process industries, coal industry, metal industry, and others. Though dust explosions have been around since the Earth first formed, and they have been studied and written about since the 1500s, they are still an ongoing concern and occur almost daily somewhere in the world, from bakeries to fertilizer plants. Dust explosions can have devastating consequences, and, recently, there have been new industrial standards and guidelines that reflect safer, more reasonable methods for dealing with materials to prevent dust explosions and resultant fires. This book not only presents these new developments for engineers and managers, but it offers a thorough and deep coverage of the subject, starting with a complete overview of dust, how it forms, when it is in danger of exploding, and how this risk can be mitigated. There is also a general coverage of explosions and the environments that foster them. Further chapters cover individual industries, such as metal and coal, and there is an appendix that outlines best practices for preventing dust explosions and fire and how these risks can be systematically mitigated by these implementations. There is also a handy glossary of terms for easy access, not only for the veteran engineer or chemist, but for the student or new hire. This ready reference is one of the most useful texts that an engineer or chemist could have at their side. With so many accidents still occurring in industry today and so many hazards, this volume pinpoints the most common and easiest ways for the engineer to go about his daily business safely, efficiently, and profitably, with no extraneous tables or theoretical treatises. A must have for any engineer, scientist, or chemist working with materials that could result in dust explosions or fire.
Dust-Gas Instabilities in Protoplanetary Disks: Toward Understanding Planetesimal Formation (Springer Theses)
by Ryosuke TominagaHow planets form is one of the long-standing questions in astrophysics. In particular, formation scenarios of planetesimals which are kilometer-sized bodies and a precursor of planets are still unclear and under debate although some promising mechanisms have been proposed.This book highlight disk instabilities that have the potential to explain the origin of planetesimals. Using linear analyses and numerical simulations, it addresses how a disk evolves through the development of instabilities, and also presents a new instability driven by dust coagulation. As a result, the simulation demonstrates a scenario of planetesimal formation: A successive development of multiple instabilities triggers planetesimal formation in resulting dusty rings.
The Dutch Empire between Ideas and Practice, 1600–2000 (Cambridge Imperial and Post-Colonial Studies Series)
by René Koekkoek Anne-Isabelle Richard Arthur WeststeijnThis volume explores the intellectual history of the Dutch Empire from a long-term and global perspective, analysing how ideas and visions of empire took shape in imperial practice from the seventeenth century to the present day. Through a series of case studies, the volume critically unearths deep-rooted conceptions of Dutch imperial exceptionalism and shows how visions of imperial rule were developed in metropolitan and colonial contexts and practices. Topics include the founding of the Dutch chartered companies for colonial trade, the development of commercial and global visions of empire in Europe and Asia, the continuities and ruptures in imperial ideas and practices around 1800, and the practical making of empire in colonial court rooms and radio broadcasting. Demonstrating the relevance of a long-term approach to the Dutch Empire, the volume showcases how the intellectual history of empire can provide fresh light on postcolonial repercussions of empire and imperial rule.Chapter 1, Chapter 3, Chapter 7 and Chapter 8 of this book are available open access under a CC BY 4.0 license at link.springer.com.
Duty First
by Ed RuggeroDuty First is a penetrating account of a year inside one of America's premier schools for leadership -- the United States Military Academy -- as it celebrates the bicentennial of its founding. Ed Ruggero, a former West Point cadet and professor, takes an incisive look at how this elite school builds the "leaders of character" who will command the nation's military. Writing with deep insight and superb narrative skill, Ruggero follows the cadet's tumultuous lives: the initial grueling training; the strict student hierarchy and intense classroom work; and the interaction between the lowly first-year plebes and the upper-class cadets who train them. Duty First also shows the role played by the majors, captains, and sergeants, who oversee everything that happens at this unique institution.
The DV-Xα Molecular-Orbital Calculation Method
by Tomohiko Ishii Hisanobu Wakita Kazuyoshi Ogasawara Yang-Soo KimThis multi-author contributed volume contains chapters featuring the development of the DV-Xα method and its application to a variety of problems in Materials Science and Spectroscopy written by leaders of the respective fields. The volume contains a Foreword written by the Chairs of Japanese and Korea DV-X alpha Societies. This book is aimed at individuals working in Quantum Chemistry.
Dwarf Galaxies: Keys to Galaxy Formation and Evolution
by Simone Recchi Polychronis Papaderos Gerhard HenslerDwarf galaxy research constitutes an extremely vibrant field of astrophysical research, with many long-standing questions still unsettled and new ones constantly arising. The intriguing diversity of the dwarf galaxy population, observed with advanced ground-based and space-borne observatories over a wide spectral window providing an unprecedented level of detail, poses new challenges for both observers and theoreticians. The aim of this symposium was to bring together these two groups to exchange ideas and new results on the many evolutionary aspects of and open issues concerning dwarf galaxies. The main topics addressed include: the birth of dwarf galaxies: theoretical concepts and observable relics across wavelengths and time, the morphological, structural and chemical evolution of dwarf galaxies, possible evolutionary connections between early-type and late-type dwarfs, the star formation history of dwarf galaxies and its dependence on intrinsic and environmental properties, the origin and implications of starburst activity in dwarf galaxies, the fate of dwarfish systems born out of tidally ejected matter in galaxy collisions.
Dwelling in Resistance: Living with Alternative Technologies in America
by Chelsea SchellyMost Americans take for granted much of what is materially involved in the daily rituals of dwelling. In Dwelling in Resistance, Chelsea Schelly examines four alternative U.S. communities—“The Farm,” “Twin Oaks,” “Dancing Rabbit,” and “Earthships”—where electricity, water, heat, waste, food, and transportation practices differ markedly from those of the vast majority of Americans. Schelly portrays a wide range of residential living alternatives utilizing renewable, small-scale, de-centralized technologies. These technologies considerably change how individuals and communities interact with the material world, their natural environment, and one another. Using in depth interviews and compelling ethnographic observations, the book offers an insightful look at different communities’ practices and principles and their successful endeavors in sustainability and self-sufficiency.
Dye Biodegradation, Mechanisms and Techniques: Recent Advances (Sustainable Textiles: Production, Processing, Manufacturing & Chemistry)
by Subramanian Senthilkannan Muthu Ali KhadirAn enormous amount of synthetic dyes is used annually in the textile, leather, plastics, paper, and dye industries due to their coloring properties. Although dyes give color to materials, they are prone to increase the level of pollution in the environment. The colored wastewater produced in industrial sectors is released into water bodies, posing threats to the ecosystem. To reduce the adverse effects of dyes in the environment, it is necessary to implement feasible and cost-effective strategies. '"Dye Biodegradation Mechanisms and Techniques - Recent Advances'' provides fundamental principles and pathways of bio-based mechanisms in dye removal. This edition firstly discusses dye classification and pollution, then concentrates on the application of fungi, mesophilic bacteria, microflora, and enzymes in dye degradation. This book also highlights the performance of sequential batch reactor systems, moving bed biofilm reactors, and hybrid bioreactors for dye biodegradation
Dye Pollution from Textile Industry: Challenges and Opportunities for Sustainable Development (SDGs and Textiles)
by Pardeep SinghThis book provides a comprehensive overview of the challenges associated with dye pollution and highlights opportunities for sustainable development in the textile industry. It discusses the environmental and health impacts of textile dyeing, the regulations and standards related to dye pollution, and the available technologies and strategies for reducing dye pollution. One of the significant challenges associated with dye pollution is the contamination of water resources. The book further discusses the available technologies and strategies for reducing water consumption and improving water treatment in the textile industry. The book also highlights the importance of adopting sustainable production processes and waste management strategies to minimize toxic waste products and eco-friendly textile production. This book is a valuable resource for researchers, industry professionals, policymakers, and anyone interested in the environmental impact of textile production.
Dyes and Chomophores in Polymer Science
by Jean Pierre Fouassier Jacques LalevéeThe design and development of dyes and chromophores have recently attracted much attention in various research fields such as materials, radiation curing, (laser) imaging, optics, medicine, microelectronics, nanotechnology, etc.. In this book, the recent research for the use of dyes and chromophores in polymer science is presented. The interaction of the visible light with the dyes or the selected chromophores is particularly important in different fields (e.g. for photovoltaic, display applications (LED ...), laser imaging or laser direct writing, green chemistry with sunlight induced photopolymerization etc ...). This book gives an overview of the dyes and chromophores for all the important fields.
Dyes and Photoactive Molecules in Microporous Systems (Structure and Bonding #183)
by Virginia Martínez-Martínez Fernando López ArbeloaThis book provides an overview of the design, synthesis, and characterization of different photoactive hybrid organic-inorganic materials, based on the combination of mainly organic molecules and inorganic nanostructures, tackling their uses in different scientific fields from photonics to biomedicine.There are many examples extensively describing how the confinement of organic compounds (i.e. chromophores, photochromic molecules or photoreactants), or other photoactive compounds (i.e.metal clusters) into several microporous systems can modulate the photophysical properties and photochemical reactions leading to interesting applications. Among (ordered)-hosts, different systems of diverse nature are widely used, such as the, the 1D- or 3D- channels of zeolitic frameworks, interlayer space of 2D-clays, the organic nanospace of curcubituril and cyclodextrins or the organo-inorganic porous crystalline MOFs systems. This volume highlights the advances of these photoactive materials and aims to be an inspiration for researchers working in materials science and photochemistry, including chemists, material engineers, physicists, biologists, and medical researchers.
Dyes and Pigments
by Ahmet Gürses Metin Açıkyıldız Kübra Güneş M. Sadi GürsesIn this book the authors go back to basics to describe the structural differences between dyes and pigments, their mechanisms of action, properties and applications. They set the scene by explaining the reasons behind these differences and show how dyes are predominately organic compounds that dissolve or react with substrates, whereas pigments are (predominantly) finely ground inorganic substances that are insoluble and therefore have a different mode of coloring. They also describe the role of functional groups and their effect on dyeing ability, contrasting this with the way in which pigments cause surface reflection (or light absorption) depending on their chemical and crystalline structure and relative particle size. The book explores the environmental impact of dyes in a section that covers the physical, chemical, toxicological, and ecological properties of dyes and how these are used to assess their effect on the environment and to estimate whether a given product presents a potential hazard. Lastly, it assesses how, in addition to their traditional uses in the textile, leather, paper, paint and varnish industries, dyes and pigments are indispensable in other fields such as microelectronics, medical diagnostics, and in information recording techniques.
Dying for Victorian Medicine
by Elizabeth T. HurrenIn the nineteenth century the business of anatomy was very profitable. However, existing in a Victorian underworld, its shadowy details and potential links to the Jack-the-Ripper murders were seldom exposed. In this accessible and vibrant account, Elizabeth Hurren brings to life lost pauper stories recovered from the asylums, infirmaries, workhouses, body dealers, railway men and undertakers that supplied the medical profession with dissection subjects. The details of those trading networks, corpse sales, body parts fees, railway transportation costs and funeral expenses have never been documented before now, yet this economy of supply in the dead underpinned modern medicine. In Dying for Victorian Medicine, Hurren allows us to look for the first time into the human face of abject poverty, working back in the archives from death to touch the lives of those compelled by pauperism to give up a loved one's body for dissection.
Dying Green: A Journey through End-of-Life Medicine in Search of Sustainable Health Care (Critical Issues in Health and Medicine)
by Christine VatovecThe slow violence being inflicted on our environment—through everything from carbon emissions to plastic pollution—also represents an impending public health catastrophe. Yet standard health care practices are more concerned with short-term outcomes than long-term sustainability. Every resource used to deliver medical care, from IV tubes to antibiotics to electricity, has a significant environmental impact. This raises an urgent ethical dilemma: in striving to improve the health outcomes of individual patients, are we damaging human health on a global scale? In Dying Green, award-winning educator Christine Vatovec offers an engaging study that asks us to consider the broader environmental sustainability of health care. Through a comparative analysis of the care provided to terminally ill patients in a conventional cancer ward, a palliative care unit, and an acute-care hospice facility, she shows how decisions made at a patient’s bedside govern the environmental footprint of the healthcare industry. Likewise, Dying Green offers insights on the many opportunities that exist for reducing the ecological impacts of medical practices in general, while also enhancing care for the dying in particular. By envisioning a more sustainable approach to care, this book offers a way forward that is better for both patients and the planet.
Dying on the Vine: How Phylloxera Transformed Wine
by George D. Gale Jr.Dying on the Vine chronicles 150 years of scientific warfare against the grapevine's worst enemy: phylloxera. In a book that is highly relevant for the wine industry today, George Gale describes the biological and economic disaster that unfolded when a tiny, root-sucking insect invaded the south of France in the 1860s, spread throughout Europe, and journeyed across oceans to Africa, South America, Australia, and California--laying waste to vineyards wherever it landed. He tells how scientists, viticulturalists, researchers, and others came together to save the world's vineyards and, with years of observation and research, developed a strategy of resistance. Among other topics, the book discusses phylloxera as an important case study of how one invasive species can colonize new habitats and examines California's past and present problems with it.
Dying Planet: Mars in Science and the Imagination
by Robert MarkleyFor more than a century, Mars has been at the center of debates about humanity's place in the cosmos. Focusing on perceptions of the red planet in scientific works and science fiction, Dying Planet analyzes the ways Mars has served as a screen onto which humankind has projected both its hopes for the future and its fears of ecological devastation on Earth. Robert Markley draws on planetary astronomy, the history and cultural study of science, science fiction, literary and cultural criticism, ecology, and astrobiology to offer a cross-disciplinary investigation of the cultural and scientific dynamics that have kept Mars on front pages since the 1800s. Markley interweaves chapters on science and science fiction, enabling him to illuminate each arena and to explore the ways their concerns overlap and influence one another. He tracks all the major scientific developments, from observations through primitive telescopes in the seventeenth century to data returned by the rovers that landed on Mars in 2004. Markley describes how major science fiction writers--H. G. Wells, Kim Stanley Robinson, Philip K. Dick, Edgar Rice Burroughs, Ray Bradbury, Robert Heinlein, and Judith Merril--responded to new theories and new controversies. He also considers representations of Mars in film, on the radio, and in the popular press. In its comprehensive study of both science and science fiction, Dying Planet reveals how changing conceptions of Mars have had crucial consequences for understanding ecology on Earth.
Dynamic and Stimuli-Responsive Multi-Phase Emulsion Droplets for Optical Components (Springer Theses)
by Sara NagelbergThis thesis builds on recent innovations in multi-phase emulsion droplet design to demonstrate that emulsion morphologies enable a useful variety of dynamic optical phenomena. Despite the highly dynamic nature of fluid morphologies and their utility for stimuli-responsive, dynamic optical materials and devices, fluid matter is underrepresented in optical technology. Using bi-phase emulsion droplets as refractive micro-optical components, this thesis realizes micro-scale fluid compound lenses with optical properties that vary in response to changes in chemical concentrations, structured illumination, and thermal gradients. Theoretical considerations of emulsions as optical components are used to explain a previously unrecognized total internal reflection-enabled light interference phenomenon in emulsion droplets that results in rich structural coloration. While this work is focused on the fundamental optics of emulsion droplets, it also facilitates the use of light-emitting emulsion morphologies as chemo-optical transducers for early-stage food-borne pathogen detection. This thesis beautifully demonstrates the virtue of fundamental interdisciplinary exploration of unconventional material systems at the interface of optics, chemistry, and materials science, and the benefits arising from translation of the acquired knowledge into specific application scenarios.