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Showing 19,226 through 19,250 of 83,711 results

Denial: Self-Deception, False Beliefs, and the Origins of the Human Mind

by Ajit Varki Danny Brower

The history of science abounds with momentous theories that disrupted conventional wisdom and yet were eventually proven true. Ajit Varki and Danny Brower's "Mind over Reality" theory is poised to be one such idea-a concept that runs counter to commonly-held notions about human evolution but that may hold the key to understanding why humans evolved as we did, leaving all other related species far behind. At a chance meeting in 2005, Brower, a geneticist, posed an unusual idea to Varki that he believed could explain the origins of human uniqueness among the world's species: Why is there no humanlike elephant or humanlike dolphin, despite millions of years of evolutionary opportunity? Why is it that humans alone can understand the minds of others? Haunted by their encounter, Varki tried years later to contact Brower only to discover that he had died unexpectedly. Inspired by an incomplete manuscript Brower left behind, DENIAL presents a radical new theory on the origins of our species. It was not, the authors argue, a biological leap that set humanity apart from other species, but a psychological one: namely, the uniquely human ability to deny reality in the face of inarguable evidence-including the willful ignorance of our own inevitable deaths. The awareness of our own mortality could have caused anxieties that resulted in our avoiding the risks of competing to procreate-an evolutionary dead-end. Humans therefore needed to evolve a mechanism for overcoming this hurdle: the denial of reality. As a consequence of this evolutionary quirk we now deny any aspects of reality that are not to our liking-we smoke cigarettes, eat unhealthy foods, and avoid exercise, knowing these habits are a prescription for an early death. And so what has worked to establish our species could be our undoing if we continue to deny the consequences of unrealistic approaches to everything from personal health to financial risk-taking to climate change. On the other hand reality-denial affords us many valuable attributes, such as optimism, confidence, and courage in the face of long odds. Presented in homage to Brower's original thinking, DENIAL offers a powerful warning about the dangers inherent in our remarkable ability to ignore reality-a gift that will either lead to our downfall, or continue to be our greatest asset.

Denialism: How Irrational Thinking Harms the Planet and Threatens Our Lives

by Michael Specter

At a time when our planet is in dire peril, Americans mistrust science more than ever. Few journalists appreciate what is at stake better than Michael Specter, who has spent the last twenty years reporting on everything from the AIDS epidemic to the digital revolution. In Denialism, he eloquently shows how, in a world where protesters march against childhood vaccines and Africans starve to death rather than import genetically modified grains, we must reconnect with the rational thinking that has underpinned the advance of civilization since the eighteenth century. What emerges is a manifesto that brilliantly captures one of the pivotal clashes of our era.

Denis Burkitt: A Cancer, the Virus, and the Prevention of Man-Made Diseases (Springer Biographies)

by John H. Cummings

This biography of Dr. Denis Parsons Burkitt, after whom the childhood cancer Burkitt's lymphoma was named, and who was a pioneer of the dietary fiber movement, paints a personal but holistic portrait of both the man and his life's work. Featuring excerpts from Dr. Burkitt's personal diaries, spanning seven decades from his boyhood to just before his passing, and extensive family archives, this book invites readers to follow Burkitt's journey through life and experience his tribulations and successes. Prof. John Cummings was a colleague of Dr. Burkitt and weaves the tale of his life through the lens of family, faith, and science. The journey takes Burkitt from his childhood in Ireland, a country undergoing major social upheaval, through his medical studies in Dublin, to army service in Africa in the midst of WWII and the independence movements that swept the continent in the following years. During his two decades spent in Uganda, working for the Colonial Medical Service, Burkitt made his first major contribution to cancer research - the characterization of Burkitt's lymphoma and its possible viral cause. Following his return to England in 1966, he turned his attention to the cause of ‘Western Diseases’ especially the role of dietary fibre in the prevention of disease and promotion of health. This earned him even wider international recognition and helped to inspire what is a vital field of research today. The book examines Burkitt's personal views of the world around him, including his experiences as a committed evangelical Christian who had been raised an Irish Protestant, and the challenges, both familial and cultural, that this elicited from and towards him and his scientific work. The lymphoma and later the fibre story propelled Denis into an orbit of worldwide travel, fame and many honours. An engaging speaker but man of great humility, always giving the credit for much of what he did to others, he left a legacy of evidence and ideas for the causes of cancer and prevention of disease from which we all now benefit.

Denitrogenative Transformation of Nitrogen Heterocycles: Synthesis, Reactions and Applications

by Pazhamalai Anbarasan

Comprehensive resource exploring a unique chemical transformation that generates new compounds with diverse properties for modern organic synthesis research Denitrogenative Transformation of Nitrogen Heterocycles explores all 10 polynitrogen heterocycles that are known to undergo denitrogenative transformations to date. Following highlights on the remarkable modifications encountered in the synthesis of nitrogen heterocycles, the chapters use a reaction-based approach to explain denitrogenative transformations in detail. This book covers the exponential growth in scientific literature in the last few decades for denitrogenative reactions of polynitrogen heterocycles which play a key role in natural products, medicinal chemistry, pharmaceuticals, biochemistry, and material sciences. This book also discusses denitrogenative cascade reactions, which accomplish powerful transformations from simple polynitrogen heterocycles to more complex molecules in modern synthetic chemistry. Written by a highly qualified academic with significant experience in the field, Denitrogenative Transformation of Nitrogen Heterocycles covers sample topics including: Transannulation of N-sulfonyl-1,2,3-triazoles with polar multiple bonds such as carbonyls and nitriles and non-polar multiple bonds such as alkenes, alkynes, and allenesInsertion of azavinyl carbenes to C–X/X–X bond, denitrogenative rearrangements of N-sulfonyl-1,2,3-triazoles, and denitrogenative transformations of NH- and N-fluoroalkyl-1,2,3-triazolesMetal-catalyzed and metal-free denitrogenative transformations of pyridotriazoles and denitrogenative transannulation of benzotriazoles and thiadiazolesDenitrogenative transformations of tetrazoles and radical denitrogenative transformations of polynitrogen heterocycles The first book of its kind on the subject, Denitrogenative Transformation of Nitrogen Heterocycles is an essential reference for researchers and scientists working in organic chemistry, organometallic chemistry, and transition metal catalysis, as well as academics and industry professionals in related fields.

Denkbar, machbar, wunschenswert

by Karl Wilhelm Böddeker

Vom Denken der Technik oder wie Technik und Kultur die Welt verändernWie eng Geistes- und Naturwissenschaften zusammenhängen, zeigt Karl Wilhelm Böddeker. In seiner geschichtlichen Betrachtung fokussiert sich Böddeker nicht auf allseits bekannte Beispiele wie die industrielle Revolution, sondern widmet sich vor allem auch brennenden und ungelösten Fragen der Gegenwart anhand der existenziellen Themen Wasser und Energie. Das Sachbuch ist nicht nur informativ, sondern auch aktuell und politisch. Eine zum Nach- und Umdenken anregende Lektüre für Naturwissenschaftler und alle interessierten Leser.Naturwissenschaftlicher Erkenntnisgewinn und kulturelle EntwicklungWasser und Energie sind Böddekers zentrale Themen. In den Kapiteln >Wasser - die unverbrauchbare RessourceEnergie - Woher, wohin, wofür, wie viel?< geht der Autor der übergeordneten Frage nach, wie sich naturwissenschaftlichtechnischer Erkenntnisgewinn überhaupt abspielt und wie er mit der kulturellen Entwicklung einhergeht. Galten Natur- und Geisteswissenschaften lange als strikte Gegensätze, zeigt Karl Wilhelm Böddeker hier in einem modernen Ansatz, wie eng Technik und Kultur eigentlich zusammenhängen und das Leben und Denken der Menschen beeinflussen.

Dennis Tito, the First Space Tourist

by Heather Feldman

Dennis Tito dreamed of taking a vacation in outer space his whole life, and when he was 60 his dream finally came true. This book tells the story of one man's determination to achieve his dreams, and the obstacles he encountered before finally seeing it come to life. The book also examines the growing interest in space tourism including information on a possible space mission by N'SYNC's Lance Bass.

Dense and Green Building Typologies: Research, Policy and Practice Perspectives (SpringerBriefs in Architectural Design and Technology)

by Thomas Schröpfer Sacha Menz

In this book, academics, policy makers, developers, architects and landscape architects provide a systematic review of the environmental, social, economic and design benefits of dense and green building types in high-density urban contexts and discuss how these can support higher population densities, higher standards of environmental sustainability and enhanced live ability in future cities.

Dense and Green Building Typologies: Design Perspectives (SpringerBriefs in Architectural Design and Technology)

by Thomas Schröpfer Sacha Menz

In this book, leading architects and landscape architects provide their perspectives on the design of dense and green building types in high-density urban contexts that can support higher population densities, higher standards of environmental sustainability and enhanced liveability in future cities.

Dense Matter in Compact Stars

by Andreas Schmitt

The purpose of these lectures is to address the following two strongly coupled issues: * What is the ground state (and its properties) of dense (quark) matter? * What is the matter composition of a compact star? In order to fulfill their primary goal - to remain both concise and accessible to the beginning graduate student or other newcomers to the field - the only prerequisites are a working knowledge of statistical mechanics and thermodynamics as well as a first course in quantum field theory. More advanced material will be introduced as the text progresses and an appendix covers basic elements of thermal quantum field theory at finite chemical potential. Instead of developing all relevant formal tools (which is not even fully possible in the regime of QCD considered here), calculations are physically motivated, making the reader familiar with the theories and technicalities by "learning by doing". In this way these lectures will guide and prepare the reader towards further investigations and own theoretical research in this exciting field at the interface of nuclear, particle and astrophysics.

Density-Functional Methods for Excited States

by Nicolas Ferré Michael Filatov Miquel Huix-Rotllant

The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. Review articles for the individual volumes are invited by the volume editors. Readership: research chemists at universities or in industry, graduate students

Density Functional Theory: A Practical Introduction

by David S. Sholl Janice A. Steckel

Density Functional Theory A concise and rigorous introduction to the applications of DFT calculations In the newly revised second edition of Density Functional Theory: A Practical Introduction, the authors deliver a concise and easy-to-follow introduction to the key concepts and practical applications of density functional theory (DFT) with an emphasis on plane-wave DFT. The authors draw on decades of experience in the field, offering students from a variety of backgrounds a balanced approach between accessibility and rigor, creating a text that is highly digestible in its entirety. This new edition: Discusses in more detail the accuracy of DFT calculations and the choice of functionals Adds an overview of the wide range of available DFT codes Contains more examples on the use of DFT for high throughput materials calculations Puts more emphasis on computing phase diagrams and on open ensemble methods widely used in electrochemistry Is significantly extended to cover calculation beyond standard DFT, e.g., dispersion-corrected DFT, DFT+U, time-dependent DFT Perfect for graduate students and postdoctoral candidates in physics and engineering, Density Functional Theory: A Practical Introduction will also earn a place in the libraries of researchers and practitioners in chemistry, materials science, and mechanical engineering.

Density Functional Theory

by Janice A Steckel David Sholl

Demonstrates how anyone in math, science, and engineering can master DFT calculationsDensity functional theory (DFT) is one of the most frequently used computational tools for studying and predicting the properties of isolated molecules, bulk solids, and material interfaces, including surfaces. Although the theoretical underpinnings of DFT are quite complicated, this book demonstrates that the basic concepts underlying the calculations are simple enough to be understood by anyone with a background in chemistry, physics, engineering, or mathematics. The authors show how the widespread availability of powerful DFT codes makes it possible for students and researchers to apply this important computational technique to a broad range of fundamental and applied problems.Density Functional Theory: A Practical Introduction offers a concise, easy-to-follow introduction to the key concepts and practical applications of DFT, focusing on plane-wave DFT. The authors have many years of experience introducing DFT to students from a variety of backgrounds. The book therefore offers several features that have proven to be helpful in enabling students to master the subject, including:Problem sets in each chapter that give readers the opportunity to test their knowledge by performing their own calculationsWorked examples that demonstrate how DFT calculations are used to solve real-world problemsFurther readings listed in each chapter enabling readers to investigate specific topics in greater depthThis text is written at a level suitable for individuals from a variety of scientific, mathematical, and engineering backgrounds. No previous experience working with DFT calculations is needed.

Density Functional Theory in Quantum Chemistry

by Takao Tsuneda

In this book, density functional theory (DFT) is introduced within the overall context of quantum chemistry. DFT has become the most frequently used theory in quantum chemistry calculations. However, thus far, there has been no book on the fundamentals of DFT that uses the terminology and methodology of quantum chemistry, which is familiar to many chemists, including experimentalists. This book first reviews the basic concepts and historical background of quantum chemistry and then explains those of DFT, showing how the latter fits into the bigger picture. Recent interesting topics of DFT in chemistry are also targeted. In particular, the physical meanings of state-of-the-art exchange-correlation functionals and their corrections are described in detail. Owing to its unconventionality, this book is certain to be of great interest not only to chemists but also to solid state physicists.

Density Functionals

by Erin R. Johnson

The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.

Density Waves In Solids

by George Gruner

?Density Waves in Solids is written for graduate students and scientists interested in solid-state sciences. It discusses the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves. These states arise as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.Some fundamental aspects of the one-dimensional electron gas, and of the materials with anisotropic properties, are discussed first. This is followed by the mean field theory of the phases transitions?discussed using second quantized formalism?together with the various experimental observations on the transition and on the ground states. Fluctuation effects and the collective excitations are reviewed next, using the Ginzburg-Landau formalism, followed by the review of the interaction of these states with the underlying lattice and with impurities. The final chapters are devoted to the response of the ground states to external perturbations.

Dental Applications of Nanotechnology

by Ramesh S. Chaughule

This book discusses current trends and potential areas of nanotechnology applications in dental materials. Dentistry is undergoing yet another change to benefit mankind via the discipline of nanodentistry. A variety of nanostructures such as nanorobots, nanospheres, nanofibers, nanorods, etc., have been studied for various applications in dentistry and medicine. Preventive dentistry has also utilized nanodentistry to develop the nanomaterials for inclusion in a variety of oral health-care products. Methods to prevent and combat dental problems have been devised, discussed, and implemented since ancient times; however, there is a constant need for improved tools and techniques. This book is relevant academically for undergraduate and post-graduate dental students, dental practitioners, researchers, and faculties of dental universities, as this book explores the application of various nanobiomaterials in dentistry, discusses current research in dental nanomaterials and potential future areas of interest, and examines the use of nanotechnology in various fields of dentistry.

Dental Autopsy

by William E. Silver Richard R. Souviron

The most advanced and complete forensic dentistry resource of its kind, this volume provides essential guidance in all areas of forensics odontologly. It supplies medical examiners and forensic investigators with the detailed information needed to perform their work with the highest level of authority in the dental autopsy lab, the field, and the c

Dental Biomechanics

by Arturo N Natali

Dental Biomechanics provides a comprehensive, timely, and wide-reaching survey of the relevant aspects of biomechanical investigation within the dental field. Leading the reader through the mechanical analysis of dental problems in dental implants, orthodontics, and natural tooth mechanics, this book covers an increasingly important and popular sub

Dental Care: A Teen's Guide To Dental Care (Young Adult's Guide to the Science of He #15)

by Autumn Libal

Did you know that poor dental hygiene can increase your risk of heart attack and stroke? Or that the incidence of cavities and tooth decay increases in the teenage years? Did you know that countries with a higher standard of living (like the United States, Canada, and England) actually have higher rates of tooth loss and decay than countries with a lower standard of living? Or that dental drills existed for thousands of years before people even had electricity? Dental hygiene is extremely important to both your physical and emotional health. Your teeth are an integral part of many important activities, such as eating, speaking, and smiling. From the Mayan practice of inlaying semi-precious stones into teeth to today's practices of braces and high-tech dental care, this book covers a wide range of dental topics. It will tell you how dental care has developed throughout the ages and will introduce you to some of today's most cutting-edge technologies. Most important, it will guide you through everything you need to know about caring for your teeth and maintaining a beautiful smile today and into the future.

Dental Gold Alloys and Gold Nanoparticles for Biomedical Applications (SpringerBriefs in Materials)

by Rebeka Rudolf Vojkan Lazić Peter Majerič Andrej Ivanič Gregor Kravanja Karlo T. Raić

This book focuses on recent advances in dental gold alloys and gold nanoparticles (GNPs) for biomedical applications. Dental gold alloys combine several highly desirable mechanical properties, such as high strength, ductility, and elasticity, with an extremely robust chemical stability in the mouth. Moreover, astonishing progress has been made in the use of GNPs as novel gold biomaterials that provide a multifunctional platform for cellular imaging, biosensing, and targeted drug delivery in tumour immunotherapy and photothermal therapy. Beginning with a comprehensive overview of the development and use of dental gold alloys, the book addresses the materials properties that are crucial for dental applications, focusing on aspects such as microstructure, chemical and mechanical stability, ageing, biocompatibility, and colour retention. The book then shifts focus to the use of GNPs in dental applications, delving into different techniques of GNP synthesis for specifically tailoring the size, shape, and stability of GNPs in biological media. In addition to these factors, it addresses how their exposure route, surface chemistry, as well as how the steric effects of their coating impact biodistribution and determine the level of GNP toxicity in the human body. Featuring topical literature reviews alongside up-to-date published experimental results, this book offers an attractive resource for practicing scientists and engineers working in the field of gold-based biomaterials.

Dental Pulp Derived Mesenchymal Stromal Cells

by Sibel Yildirim

This book presents an evaluation of stem cells from human dental pulp as a reliable stem cell source for cell-based therapy to stimulate tissue regeneration.​ In this thoroughly updated and expanded second edition, the author covers mesenchymal stem cell (MSC) biology, various sources of MSCs, and the therapeutic potential of MSCs. Tooth regeneration, dental pulp-derived MSC, and the therapeutic potential of dental pulp derived stem cells is also covered. This is an essential resource for students, faculty, and researchers in academia and industry working on dental pulp stem cells.

Dental Pulp Stem Cells

by Sibel Yildirim

Stem cell technology is moving forward at a tremendous rate. Recent discoveries have surprised even the most expert researchers. While every piece of new data broadens the current knowledge and contributes to this moving forward, the new data also serve as paradigm shifters of fundamental knowledge of cell biology. While the question 'What is a Stem Cell' may now seem to basic to even discuss, there are still some discrepancies, however, between groups in terms of their functional roles. Teeth develop from the ectoderm of the first branchial arch and the ectomesenchyme of the neural crest. Deciduous teeth start to form between the sixth and eighth weeks, and permanent teeth begin to form in the twentieth weeks. Several studies have demonstrated that the pulp from both adult teeth and deciduous teeth contains dental pulp stem cells. Several factors have made them very attractive as a model system for many researchers; they are multipotent, ethically and non-controversially available in large numbers, immuno-compatible, developmentally primitive, easy to isolate and have high expansion potential in vitro. However, many controversies still exist in the field. There are several unanswered questions in the biology of dental pulp and odontoblasts. This new volume in the SpringerBriefs in Stem Cells series presents an evaluation of stem cells from human dental pulp as a reliable stem cell source for cell-based therapy to stimulate tissue regeneration.

Dental Radiography: Principles and Techniques

by Joen Iannucci Laura Jansen Howerton

Set yourself up for success with this must-have oral radiography text. Dental Radiography: Principles and Techniques gives you a comprehensive foundation for the safe, effective use of radiation in the modern dental office. This combination textbook and training manual features easy-to-understand content combined with step-by-step techniques and a stellar art program to help you apply what you’ve learned to practice. Plus, new content focuses on pediatrics and the latest in digital and three-dimensional technology!

Denying Science

by John Grant

Is global warming just scaremongering by climatologists conspiring to protect their jobs? Is evolution "just a theory"? Is autism caused by vaccinations? The answer to all of these questions is, of course, no. The scientific evidence is now in, and it's conclusive, on these and many more issues that are fundamental to our knowledge and wellbeing. But you'd never know this if all of your information came from the popular media or your upbringing and immediate circle of influence didn't include critical thinking and basic scientific literacy. As this witty book with a very serious message shows, our culture has in recent decades been characterized by a widespread antagonism toward science and the not-always-welcome messages it brings. Large sections of the supposedly sophisticated populations in the developed nations are in an active state of denial. Not only do they deny scientific evidence but they also call into question the very competence of science as a descriptor of reality. In short, they deny reality. The author surveys the gamut of clearly unscientific ideas concerning the food we eat, the medicines and potions we are either afraid of or advised to take, our sex preferences, and a host of other issues that are raised by various panics, urban legends, and a general climate of misinformation. He also examines how special interests, from agribusiness to pharmaceutical companies to creationists, actively work to distort or suppress scientific findings. While the tendency may be to laugh at some of the ridiculous notions catalogued in the author's overview of bogus ideas, the overall picture he creates is anything but funny. This book reminds the reader that the future of free, increasingly complex societies depends on an educated citizenry that is able to think clearly and critically based on reliable information.

The Department of Energy: A Look Behind the Scenes (U.S. Government Behind the Scenes)

by Michael Burgan

Describes the history of the Department of Energy, and how it has evolved, what the pressing issues are today, and what lies ahead in the near future. Takes a potentially dry topic and makes it accessible for the younger reader. Sidebars highlight important issues and figures in history.

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Showing 19,226 through 19,250 of 83,711 results