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Showing 19,501 through 19,525 of 77,214 results

Dose, Benefit, and Risk in Medical Imaging (Imaging in Medical Diagnosis and Therapy)

by Lawrence T. Dauer Bae P. Chu Pat B. Zanzonico

This timely overview of dose, benefit, and risk in medical imaging explains to readers how to apply this information for informed decision-making that improves patient outcomes. The chapters cover patient and physician perspectives, referral guidelines, appropriateness criteria, and quantifying medical imaging benefits. The authors have included essential discussion about radiologic physics in medical imaging, fundamentals of dose and image quality, risk assessment, and techniques for optimization and dose reduction. The book highlights practical implementation aspects with useful case studies and checklists for treatment planning. Clinicians, students, residents, and professionals in medical physics, biomedical engineering, radiology, oncology, and allied disciplines will find this book an essential resource with the following key features: Discusses risk, benefit, dose optimization, safety, regulation, radiological protection, and shared & informed decision-making. Covers regulatory oversight by government agencies, manufacturers, and societies. Highlights best practices for improving patient safety and outcomes. Gives guidelines on doses associated with specific procedures.

Dose-Finding Designs for Early-Phase Cancer Clinical Trials: A Brief Guidebook to Theory and Practice (SpringerBriefs in Statistics)

by Takashi Daimon Akihiro Hirakawa Shigeyuki Matsui

This book provides a comprehensive introduction to statistical methods for designing early phase dose-finding clinical trials. It will serve as a textbook or handbook for graduate students and practitioners in biostatistics and clinical investigators who are involved in designing, conducting, monitoring, and analyzing dose-finding trials. The book will also provide an overview of advanced topics and discussions in this field for the benefit of researchers in biostatistics and statistical science. Beginning with backgrounds and fundamental notions on dose finding in early phase clinical trials, the book then provides traditional and recent dose-finding designs of phase I trials for, e.g., cytotoxic agents in oncology, to evaluate toxicity outcome. Included are rule-based and model-based designs, such as 3 + 3 designs, accelerated titration designs, toxicity probability interval designs, continual reassessment method and related designs, and escalation overdose control designs. This book also covers more complex and updated dose-finding designs of phase I-II and I/II trials for cytotoxic agents, and cytostatic agents, focusing on both toxicity and efficacy outcomes, such as designs with covariates and drug combinations, maximum tolerated dose-schedule finding designs, and so on.

The Dose Makes the Poison

by Patricia Frank M. Alice Ottoboni

This new edition of a widely-read and highly-acclaimed book broadens the scope of its predecessors from a heavy focus on industrial chemicals as toxicants to include drugs, food additives, cosmetics and other types of compounds that people are exposed to daily. Also new to the 3rd edition are newer issues-of-the-day such as nanoparticulate toxicants, second hand smoke, food contamination, lead in toys, and others. As such, the book provides the basics of toxicology in easy-to-understand language as well as a fuller understanding of the daily insults to which our bodies are subjected.

Dose Optimization in Digital Radiography and Computed Tomography: An Essential Guide

by Euclid Seeram

This book addresses radiation protection of patients having digital radiography and computed tomography (CT) examinations. The literature on radiation doses to patients from these two modalities have reported that the doses to patients are high. As a result, the radiology community has focused on methods and procedures to keep these doses as low as reasonably achievable (ALARA) without compromising the diagnostic image quality. This book outlines the motivation for dose optimization in radiology, identifies and describes the ICRP principle of optimization, outlines the factors affecting the dose in digital radiography and in CT, and identifies and describes strategies used in digital radiography and in CT for dose optimization.This book is intended for all those working in digital radiography and CT environments including radiological technologists, and radiographers, radiologists, biomedical engineering technologists, and student medical physicists. It is best used as a supplement to radiologic science textbooks, and in particular, radiation protection textbooks. Furthermore, this book lays the foundations for students and practitioners engaged in research on dose reduction and dose optimization in radiology.· Provides practical and useful methods for optimization of doses from digital radiography and CT · Describes the International Commission on Radiological Protection (ICRP) principle of optimization · Outlines the factors affecting the dose in digital radiography and in computed tomography

Dose-Response Analysis Using R (Chapman & Hall/CRC The R Series)

by Christian Ritz Signe Marie Jensen Daniel Gerhard Jens Carl Streibig

Nowadays the term dose-response is used in many different contexts and many different scientific disciplines including agriculture, biochemistry, chemistry, environmental sciences, genetics, pharmacology, plant sciences, toxicology, and zoology.In the 1940 and 1950s, dose-response analysis was intimately linked to evaluation of toxicity in terms of binary responses, such as immobility and mortality, with a limited number of doses of a toxic compound being compared to a control group (dose 0). Later, dose-response analysis has been extended to other types of data and to more complex experimental designs. Moreover, estimation of model parameters has undergone a dramatic change, from struggling with cumbersome manual operations and transformations with pen and paper to rapid calculations on any laptop. Advances in statistical software have fueled this development.Key Features: Provides a practical and comprehensive overview of dose-response analysis. Includes numerous real data examples to illustrate the methodology. R code is integrated into the text to give guidance on applying the methods. Written with minimal mathematics to be suitable for practitioners. Includes code and datasets on the book’s GitHub: https://github.com/DoseResponse. This book focuses on estimation and interpretation of entirely parametric nonlinear dose-response models using the powerful statistical environment R. Specifically, this book introduces dose-response analysis of continuous, binomial, count, multinomial, and event-time dose-response data. The statistical models used are partly special cases, partly extensions of nonlinear regression models, generalized linear and nonlinear regression models, and nonlinear mixed-effects models (for hierarchical dose-response data). Both simple and complex dose-response experiments will be analyzed.

Dosimetry in Bioelectromagnetics

by Marko Markov

Dosimetry refers to the calculation and assessment of the radiation dose received by the human body. The proposed book will place emphasis on the existence of physical and biophysical dosimetry. It will be discussed for the proper description and evaluation of the signal at the power generation system. It will cover in detail 10 different parameters of EMF (electromagnetism) exposure such as amplitude, frequency, vector, time of exposure, orientation, etc. In most published papers, these parameters are not well defined.

Dot.

by Randi Zuckerberg

*NOW A HIT TV SERIES*Meet Dot in this debut picture book by CEO and founder of Zuckerberg Media, editor-in-chief of Dot Complicated, and former Marketing Director of Facebook, Randi Zuckerberg! Dot's a spunky little girl well versed in electronic devices—she’s a technophile. She knows how to tap . . . to swipe . . . to share . . . and she pays little attention to anything else.Dot's tech-savvy expertise, mingled with her resourceful imagination, proves Dot knows lots and lots.But will she be able to unplug for one second to tap…swipe…and share with her real-life friends? Find out in this wonderful story about the day when Dot sets off on an interactive adventure with the world surrounding her.

Dot Complicated: Untangling Our Wired Lives

by Randi Zuckerberg

With Dot Complicated: Untangling Our Wired Lives, new media pioneer Randi Zuckerberg offers an entertaining and essential guide to understanding how technology and social media influence and inform our lives online and off.Zuckerberg has been on the frontline of the social media movement since Facebook’s early days and her following six years as a marketing executive for the company. Her part memoir, part how-to manual addresses issues of privacy, online presence, networking, etiquette, and the future of social change.

Dot & Jabber and the Great Acorn Mystery (Dot & Jabber)

by Ellen Stoll Walsh

Dot and Jabber are mouse detectives with a mission: They’re determined to find out how a little oak tree grew in their field when there are no other oak trees around. They know it grew from an acorn, but how did the acorn get there? Dot and Jabber have a case to crack--if Jabber doesn’t eat the clues first! Ellen Stoll Walsh, creator of the popular Mouse Paint mice, introduces two new mice who love mysteries. Full of curiosity and humor, Dot and Jabber track clues to solve science mysteries for young readers. An afterword presents easy-to-understand facts about acorns and oak trees.

dotmeme

by Mike A. Lancaster

After preventing conservative MP Victor Palgrave from engineering a human mind-controlled teenage army, Joe Dyson and Ani Lee, operatives for a secret youth division of British Intelligence, have probably earned a rest. But there’s no time to be lax with bizarre new developments popping up across the UK and the world. While busting a group that’s pressing teen runaways into slave labor building tech, Joe discovers a computer component not yet out on the market, linked to a very popular, but highly secretive gaming company based in California. Meanwhile, skilled hacker Ani works her way into a vigilante hacking ring intent on using viral social media to bring the truth to the world and bring world governments to their knees. They’re method: rewriting reality, virtually, so that the world never knows the difference. As Ani's and Joe’s missions draw closer together, they realize that they have been corralled into a real-life video game—one where the levels are constantly being rewritten, and the stakes are constantly shifting. What happens when AI evolves to the point where it has a mind of its own? When the computer threatens to turn on its master? Joe, Ani, and the world are about to find out.

dotwav

by Mike A. Lancaster

"There’s something in that sound. Something bad. Something dangerous.”Fifteen-year-old Ani Lee is a skilled hacker researching a strange .wav file that she’s downloaded when it behaves as no file ever should.Joe Dyson is a seventeen-year-old American transplant recruited into a secret teen division of the British intelligence service who’s looking into the disappearance of a friend caught up in an underground music scene that might be more than it appears.When Ani and Joe’s investigations intertwine, they discover that the .wav file and the music are linked-someone’s embedding the file into tracks to create a mind-controlled teen army.But who’s behind it? And why? And how do you stop a sound?An exhilarating sci-fi techno-thriller that blends music, mind control, and conspiracy perfect for fans of Little Brother, Brain Jack, and Proxy.Sky Pony Press, with our Good Books, Racehorse and Arcade imprints, is proud to publish a broad range of books for young readers-picture books for small children, chapter books, books for middle grade readers, and novels for young adults. Our list includes bestsellers for children who love to play Minecraft; stories told with LEGO bricks; books that teach lessons about tolerance, patience, and the environment, and much more. While not every title we publish becomes a New York Times bestseller or a national bestseller, we are committed to books on subjects that are sometimes overlooked and to authors whose work might not otherwise find a home.

The Double [3+2] Photocycloaddition Reaction

by Jason A. Woolford

Jason Woolford's thesis describes for the first time, a double [3+2] photocycloaddition of alkenes onto aromatic rings. Modern synthetic chemistry relies on the ability of researchers to uncover new and more efficient ways of creating highly complex structures. This work describes a novel, environmentally friendly photochemical step that converts in one pot, trivial starting materials into otherwise difficult to construct fenstrane frameworks. The rigid cores of these frameworks have significant potential in drug design. Moreover, the novelty of this work overtakes many other methods for the creation of chiral centres. No less than seven chiral centres are created in the photochemical step together with the formation of four carbon-carbon bonds and multifused rings. Jason's innovative work has been the subject of several publications in peer-reviewed journals.

Double Chooz and Reactor Neutrino Oscillation

by Thiago Junqueira de Castro Bezerra

This book is based on the author's work at the Double Chooz Experiment, from 2010 to 2013, the goal of which was to search for electronic anti-neutrino disappearance close to nuclear power plant facilities as a result of neutrino oscillation. Starting with a brief review of neutrino oscillation and the most important past experimental findings in this field, the author subsequently provides a full and detailed description of a neutrino detector, from simulation aspects to detection principles, as well as the data analysis procedure used to extract the oscillation parameters. The main results in this book are 1) an improvement on the mixing angle, θ13, uncertainty by combining two data-sets from neutrino event selection: neutron capture on gadolinium and on hydrogen; and 2) the first measurement of the effective squared mass difference by combining the current reactor neutrino experimental data from Daya Bay, Double Chooz and RENO and taking advantage of their different reactor-to-detector distances. The author explains how these methods of combining data can be used to estimate these two values. Each method results in the best possible sensitivity for the oscillation parameters with regard to reactor neutrinos. They can be used as a standard method on the latest data releases from the current experiments.

The Double-Crested Cormorant: Symbol of Ecological Conflict

by Dennis Wild

This is the story of the survival, recovery, astonishing success, and controversial status of the double-crested cormorant. After surviving near extinction driven by DDT and other contaminants from the 1940s through the early 1970s, the cormorant has made an unprecedented comeback from mere dozens to a population in the millions, bringing the bird again into direct conflict with humans. Hated for its colonial nesting behavi∨ the changes it brings to landscapes; and especially its competition with commercial and sports fishers, fisheries, and fish farmers throughout the Great Lakes and Mississippi Delta regions, the cormorant continues to be persecuted by various means, including the shotgun. InThe Double-Crested Cormorant, Dennis Wild brings together the biological, social, legal, and international aspects of the cormorant's world to give a complete and balanced view of one of the Great Lakes' and perhaps North America's most misunderstood species. In addition to taking a detailed look at the complex natural history of the cormorant, the book explores the implications of congressional acts and international treaties, the workings and philosophies of state and federal wildlife agencies, the unrelenting efforts of aquaculture and fishing interests to "cull" cormorant numbers to "acceptable" levels, and the reactions and visions of conservation groups. Wild examines both popular preconceptions about cormorants (what kinds of fish they eat and how much) and the effectiveness of ongoing efforts to control the cormorant population. Finally, the book delves into the question of climate and terrain changes, their consequences for cormorants, the new territories to which the birds must adapt, and the conflicts this species is likely to face going forward.

The Double-crested Cormorant

by Linda R. Wires

The double-crested cormorant, found only in North America, is an iridescent black waterbird superbly adapted to catch fish. It belongs to a family of birds vilified since biblical times and persecuted around the world. Thus it was perhaps to be expected that the first European settlers in North America quickly deemed the double-crested cormorant a competitor for fishing stock and undertook a relentless drive to destroy the birds. This enormously important book explores the roots of human-cormorant conflicts, dispels myths about the birds, and offers the first comprehensive assessment of the policies that have been developed to manage the double-crested cormorant in the twenty-first century. Conservation biologist Linda Wires provides a unique synthesis of the cultural, historical, scientific, and political elements of the cormorant's story. She discusses the amazing late-twentieth-century population recovery, aided by protection policies and environment conservation, but also the subsequent U.S. federal policies under which hundreds of thousands of the birds have been killed. In a critique of the science, management, and ethics underlying the double-crested cormorant's treatment today, Wires exposes "management" as a euphemism for persecution and shows that the current strategies of aggressive predator control are outdated and unsupported by science.

Double Dare (From the Files of Madison Finn #14)

by Laura Dower

It's Madison vs. Egg when the school computer contest turns competitive!Madison assumes that she and her best guy friend, Egg, will partner up for the "I Can Do That!" computer contest to create a web page for homework help. So when Egg chooses Chet as his partner, Maddie feels hurt. Their love of computers has always bonded them together. Fiona offers to be Madison's partner, and Egg throws down a challenge: He double dares the girls to try to win against the boys. Madison embraces the challenge--she really wants to show off her computer skills. Or does she just want to beat Egg at his own game?

Double-Diffusive Convection

by Timour Radko

Double-diffusive convection is a mixing process driven by the interaction of two fluid components which diffuse at different rates. Leading expert Timour Radko presents the first systematic overview of the classical theory of double-diffusive convection in a coherent narrative, bringing together the disparate literature in this developing field. The book begins by exploring idealized dynamical models and illustrating key principles by examples of oceanic phenomena. Building on the theory, it then explains the dynamics of structures resulting from double-diffusive instabilities, such as the little-understood phenomenon of thermohaline staircases. The book also surveys non-oceanographic applications, such as industrial, astrophysical and geological manifestations, and discusses the climatic and biological consequences of double-diffusive convection. Providing a balanced blend of fundamental theory and real-world examples, this is an indispensable resource for academic researchers, professionals and graduate students in physical oceanography, fluid dynamics, applied mathematics, astrophysics, geophysics and climatology.

Double Digit (Digit Series)

by Annabel Monaghan

To say eighteen-year-old Farrah Higgins—or Digit—is good at math is a laughable understatement. She’s been cracking codes since childhood, and is finally at home with “her people” at MIT in Cambridge. Her talents are so off the charts that her laptop is under surveillance by both the CIA and an ecoterrorist named Jonas Furnis. So when she thoughtlessly hacks into the Department of Defense’s database, she lands in serious hot water inside and outside the law. Readers will be sad to turn the last page of this suspenseful, sassy, super smart thriller, the sequel to A Girl Named Digit.

The Double Edged Helix: Social Implications of Genetics in a Diverse Society

by Adrienne Asch Jon Beckwith Peter Conrad Lisa N. Geller Joseph Alper Catherine Ard

The authors address the medical and ethical implications of the new technologies, outlining potential positive and negative effects of genetic research on minorities, people with disabilities, and those of diverse sexual orientations. Presenting a wide array of perspectives, this book emphasizes the need to ensure that research into genetics does not result in discrimination against people on the basis of their DNA.

Double-Gyroid-Structured Functional Materials: Synthesis and Applications

by Maik Rudolf Scherer

The development of new high-tech applications and devices has created a seemingly insatiable demand for novel functional materials with enhanced and tailored properties. Such materials can be achieved by three-dimensional structuring on the nanoscale, giving rise to a significant enhancement of particular functional characteristics which stems from the ability to access both surface/interface and bulk properties. The highly ordered, bicontinuous double-gyroid morphology is a fascinating and particularly suitable 3D nanostructure for this purpose due to its highly accessible surface area, connectivity, narrow pore diameter distribution and superb structural stability. The presented study encompasses a wide range of modern nanotechnology techniques in a highly versatile bottom-up nanopatterning strategy that splits the fabrication process into two successive steps: the preparation of mesoporous double-gyroid templates utilizing diblock copolymer self-assembly, and their replication with a functional material employing electrochemical deposition and atomic layer deposition. The double-gyroid structured materials discussed include metals, metal oxides, and conjugated polymers, which are applied and characterized in high-performance devices, such as electrochromic displays, supercapacitors, chemical sensors and photovoltaics. This publication addresses a wide range of readers, from researchers and specialists who are professionally active in the field, to more general readers interested in chemistry, nanoscience and physics.

The Double Helix: A Personal Account Of The Discovery Of The Structure Of Dna (Critical Editions Ser. #0)

by Dr James Watson

The story of the most significant biological breakthrough of the century - the discovery of the structure of DNA.'It is a strange model and embodies several unusual features. However, since DNA is an unusual substance, we are not hesitant in being bold' By elucidating the structure of DNA, the molecule underlying all life, Francis Crick and James Watson revolutionised biochemistry. At the time, Watson was only 24. His uncompromisingly honest account of those heady days lifts the lid on the real world of great scientists, with their very human faults and foibles, their petty rivalries and driving ambition. Above all, he captures the extraordinary excitement of their desperate efforts to beat their rivals at King's College to the solution to one of the great enigmas of the life sciences.

The Double Helix

by James Watson

A Personal Account of the Discovery of the Structure of DNA

The Double Helix: A Personal Account of the Discovery of the Structure of DNA (Critical Editions Ser. #0)

by James D. Watson

The classic personal account of Watson and Crick’s groundbreaking discovery of the structure of DNA, now with an introduction by Sylvia Nasar, author of A Beautiful Mind.By identifying the structure of DNA, the molecule of life, Francis Crick and James Watson revolutionized biochemistry and won themselves a Nobel Prize. At the time, Watson was only twenty-four, a young scientist hungry to make his mark. His uncompromisingly honest account of the heady days of their thrilling sprint against other world-class researchers to solve one of science’s greatest mysteries gives a dazzlingly clear picture of a world of brilliant scientists with great gifts, very human ambitions, and bitter rivalries. With humility unspoiled by false modesty, Watson relates his and Crick’s desperate efforts to beat Linus Pauling to the Holy Grail of life sciences, the identification of the basic building block of life. Never has a scientist been so truthful in capturing in words the flavor of his work.

Double Helix

by Nancy Werlin

Eli has lucked into a job at Wyatt Transgenics offered to him by Dr. Wyatt, the famed scientist. The salary is substantial, the work is interesting, and Dr. Wyatt seems to be paying special attention to Eli. It's almost too good to be true. Is there a catch? Eli's father is vehemently against his taking the job, but won't explain why. Eli knows that there's some connection between Dr. Wyatt and his parents, something too painful for his father to discuss. Something to do with his mother, who is now debilitated by Huntington's disease. As he continues to work at the lab, and to spend time with Dr. Wyatt, he begins to uncover some disconcerting truths about himself, about his very makeup. Rich and suspenseful, with a hair-raising conclusion, this is Nancy Werlin's most dynamic novel yet, one that explores the ethics and amazements of genetic engineering.

Double or Nothing: A Makers Story about 3D Printing (Makers Make It Work)

by Catherine Daly

Mason and Mia are twins . . . but don&’t always get along. When Mia wins a dolphin at the fair, Mason really, really wants one, too. If only Mia could make a twin dolphin! This story explores the Makers theme of 3D Printing and helps young makers understand how it works and get excited to try it for themselves! Mia and Mason are able to make a 3D scan of the dolphin to create a 3D model, and use a special kind of melted plastic to create the three-dimensional design. Tying into the popular Makers Movement, Makers Make It Work is a series of fun easy-to-read stories that focus on problem-solving and hands-on action. *Bonus Activity in the Book: Draw a picture of your favorite animal from each side—a 2D drawing, then use it to create a 3D model.

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