Take your data wrangling skills to the next level by gaining a deep understanding of tidyverse libraries and effectively prepare your data for impressive analysis Purchase of the print or Kindle book includes a free PDF eBook Key FeaturesExplore state-of-the-art libraries for data wrangling in R and learn to prepare your data for analysisFind out how to work with different data types such as strings, numbers, date, and timeBuild your first model and visualize data with ease through advanced plot types and with ggplot2Book Description In this information era, where large volumes of data are being generated every day, companies want to get a better grip on it to perform more efficiently than before. This is where skillful data analysts and data scientists come into play, wrangling and exploring data to generate valuable business insights. In order to do that, you'll need plenty of tools that enable you to extract the most useful knowledge from data. Data Wrangling with R will help you to gain a deep understanding of ways to wrangle and prepare datasets for exploration, analysis, and modeling. This data book enables you to get your data ready for more optimized analyses, develop your first data model, and perform effective data visualization. The book begins by teaching you how to load and explore datasets. Then, you'll get to grips with the modern concepts and tools of data wrangling. As data wrangling and visualization are intrinsically connected, you'll go over best practices to plot data and extract insights from it. The chapters are designed in a way to help you learn all about modeling, as you will go through the construction of a data science project from end to end, and become familiar with the built-in RStudio, including an application built with Shiny dashboards. By the end of this book, you'll have learned how to create your first data model and build an application with Shiny in R. What you will learnDiscover how to load datasets and explore data in RWork with different types of variables in datasetsCreate basic and advanced visualizationsFind out how to build your first data modelCreate graphics using ggplot2 in a step-by-step way in Microsoft Power BIGet familiarized with building an application in R with ShinyWho this book is for If you are a professional data analyst, data scientist, or beginner who wants to learn more about data wrangling, this book is for you. Familiarity with the basic concepts of R programming or any other object-oriented programming language will help you to grasp the concepts taught in this book. Data analysts looking to improve their data manipulation and visualization skills will also benefit immensely from this book.
Take your data wrangling skills to the next level by gaining a deep understanding of tidyverse libraries and effectively prepare your data for impressive analysis Purchase of the print or Kindle book includes a free PDF eBook Key FeaturesExplore state-of-the-art libraries for data wrangling in R and learn to prepare your data for analysisFind out how to work with different data types such as strings, numbers, date, and timeBuild your first model and visualize data with ease through advanced plot types and with ggplot2Book Description In this information era, where large volumes of data are being generated every day, companies want to get a better grip on it to perform more efficiently than before. This is where skillful data analysts and data scientists come into play, wrangling and exploring data to generate valuable business insights. In order to do that, you'll need plenty of tools that enable you to extract the most useful knowledge from data. Data Wrangling with R will help you to gain a deep understanding of ways to wrangle and prepare datasets for exploration, analysis, and modeling. This data book enables you to get your data ready for more optimized analyses, develop your first data model, and perform effective data visualization. The book begins by teaching you how to load and explore datasets. Then, you'll get to grips with the modern concepts and tools of data wrangling. As data wrangling and visualization are intrinsically connected, you'll go over best practices to plot data and extract insights from it. The chapters are designed in a way to help you learn all about modeling, as you will go through the construction of a data science project from end to end, and become familiar with the built-in RStudio, including an application built with Shiny dashboards. By the end of this book, you'll have learned how to create your first data model and build an application with Shiny in R. What you will learnDiscover how to load datasets and explore data in RWork with different types of variables in datasetsCreate basic and advanced visualizationsFind out how to build your first data modelCreate graphics using ggplot2 in a step-by-step way in Microsoft Power BIGet familiarized with building an application in R with ShinyWho this book is for If you are a professional data analyst, data scientist, or beginner who wants to learn more about data wrangling, this book is for you. Familiarity with the basic concepts of R programming or any other object-oriented programming language will help you to grasp the concepts taught in this book. Data analysts looking to improve their data manipulation and visualization skills will also benefit immensely from this book.
This textbook presents the basics of philosophy that are necessary for the student and researcher in science in order to better understand scientific work. The approach is not historical but formative: tools for semantical analysis, ontology of science, epistemology, and scientific ethics are presented in a formal and direct way. The book has two parts: one with the general theory and a second part with application to some problems such as the interpretation of quantum mechanics, the nature of mathematics, and the ontology of spacetime. The book addresses questions such as "What is meaning?", "What is truth?", "What are truth criteria in science?", "What is a theory?", "What is a model?" "What is a datum?", "What is information?", "What does it mean to understand something?", "What is space?", "What is time?", "How are these concepts articulated in science?" "What are values?" "What are the limits of science?", and many more. The philosophical views presented are "scientific" in the sense that they are informed by current science, they are relevant for scientific research, and the method adopted uses the hypothetical-deductive approach that is characteristic of science. The results and conclusions, as any scientific conclusion, are open to revision in the light of future advances. Hence, this philosophical approach opposes to dogmatic philosophy. Supported by end-of-chapter summaries and a list of special symbols used, the material will be of interest for students and researchers in both science and philosophy. The second part will appeal to physicists and mathematicians.
From preconception care through all aspects of care of the pregnant mother and newborn infant, Clinical Obstetrics provides comprehensive, authoritative information on today’s obstetrics and maternal-fetal medicine. The fourth edition has been streamlined with concise chapters summarizing clinical content for busy practitioners. The eBook provides expanded content and exciting new animations and interactive decision-making algorithms. Together, the print and eBook offer residents, trainees, and all obstetrics and maternal-fetal practitioners a comprehensive resource featuring the most up-to-date guidelines, decision algorithms, and evidence for clinical practice.
A comprehensive, authoritative look at an emergent area in post-genomic science, Evolutionary genomics is an up-and-coming, complex field that attempts to explain the biocomplexity of the living world. Evolutionary Genomics and Systems Biology is the first full-length book to blend established and emerging concepts in bioinformatics, evolution, genomics, and structural biology, with the integrative views of network and systems biology. Three key aspects of evolutionary genomics and systems biology are covered in clear detail: the study of genomic history, i.e., understanding organismal evolution at the genomic level; the study of macromolecular complements, which encompasses the evolution of the protein and RNA machinery that propels life; and the evolutionary and dynamic study of wiring diagrams—macromolecular components in interaction—in the context of genomic complements. The book also features: A solid, comprehensive treatment of phylogenomics, the evolution of genomes, and the evolution of biological networks, within the framework of systems biology A special section on RNA biology—translation, evolution of structure, and micro RNA and regulation of gene expression Chapters on the mapping of genotypes to phenotypes, the role of information in biology, protein architecture and biological function, chromosomal rearrangements, and biological networks and disease Contributions by leading authorities on each topic Evolutionary Genomics and Systems Biology is an ideal book for students and professionals in genomics, bioinformatics, evolution, structural biology, complexity, origins of life, systematic biology, and organismal diversity, as well as those individuals interested in aspects of biological sciences as they interface with chemistry, physics, and computer science and engineering.
This book is based on the lecture notes of a one-semester course on black hole astrophysics given by the author and is aimed at advanced undergraduate and graduate students with an interest in astrophysics. The material included goes beyond that found in classic textbooks and presents details on astrophysical manifestations of black holes. In particular, jet physics and detailed accounts of objects like microquasars, active galactic nuclei, gamma-ray bursts, and ultra-luminous X-ray sources are covered, as well as advanced topics like black holes in alternative theories of gravity. The author avoids unnecessary technicalities and to some degree the book is self-contained. The reader will find some basic general relativity tools in Chapter 1. The appendices provide some additional mathematical details that will be useful for further study, and a guide to the bibliography on the subject.
The book intends to give a modern presentation of the classical Markov and Lagrange spectrum, which are fundamental objects from the theory of Diophantine approximations and of their several generalizations related to Dynamical Systems and Differential Geometry. Besides presenting many classical results, the book includes several topics of recent research on the subject, connecting several fields of Mathematics — Number Theory, Dynamical Systems and Fractal Geometry.It includes topics as:
This book deals with a series of topics on the cutting edge of nonlinear science, striking a balance between theory and experiment. It consists of two innovative introductory presentations on dynamical systems and fluid dynamics and six chapters on advanced research. A nontrivial interrelation between the different topics becomes apparent throughout the book as an indication of the underlying unity and genericity of nonlinear phenomena. There is a continuous emphasis on conceptual issues often introduced via concrete examples. A common feature is that most of the systems under study are extended, nonhomogeneous and far from equilibrium. The book also exhibits an interesting interplay between deterministic and stochastic approaches.
Recent literary studies and related disciplines have given much attention to phenomena that seem to occupy more or less permanently eccentric positions in our experience. Gustavo Perez Firmat examines three of these marginal or liminal phenomena—paying particular attention to the distinction between "center" and "periphery"—as they appear in Hispanic literature. Carnival (the traditional festival in which normal behavior is overturned),choteo(an insulting form of humor), and disease are three liminal entities discussed. Less an attempt to frame a general theory of such "liminalities" than an effort to demonstrate the interpretive power of the liminality concept, this work challenges conventional boundaries of critical sense and offers new insights into a variety of questions, among them the notion of convertability in psychoanalysis and the relation of New World culture to its European forebears.
THE authoritative guide to prenatal neuro ultrasound—fully updated and revised! Featuring unmatched content from an international team of experts, Ultrasound of the Prenatal Brain facilitates a thorough comprehension the normal and abnormal fetal central nervous system. With highly clinical text and visual atlas, this acclaimed reference covers the full spectrum of prenatal sonography tools and insight—from using ultrasound and MRI to diagnose the fetal face, eye, and brain, to the neurobehavioral development of the fetal brain. This fourth edition has been updated with new chapters, revised content, and higher-quality 2D and 3D imaging highlighting cross-sectional views of the brain for practical learning from every angle. Full-color original illustrations demonstrate ideal fetal development, probe placement, and representative views. FEATURES Information on the latest device techniques, diagnostics, and clinical management New 2D and 3D images offer high-quality views of all anomalies Evidence-based management for practical clinical decision-making 500+ photos and illustrations New chapters: The Fetal Neurology Clinic Anomalies of the Midbrain and Hindbrain Fetal Cerebral Vascular Malformations Tumors of the Fetal Brain Sonography of the Feta Outer and Inner Ear CNS Involvement and Risk in Fetuses with Congenital Heart Disease In-Utero Fetal Neurosurgery
On May 4, 1993, Cuba asked the international health community and the World Health Organization (WHO) to find the cause of a mysterious epidemic of blindness that was spreading uncontrollably. Contradictory hypotheses confronted the team of scientists on this mission. Is the epidemic the result of a plot to topple Castro, as the Cubans believe? Or exposure to radioactivity or an unidentified nerve toxin accidentally released by the Russian Army withdrawing from Cuba?Cuban Blindness: Diary of a Mysterious Epidemic Neuropathy is a firsthand account of the epidemic of blindness and the hardships of life in Cuba at the time of the "special period" that followed the collapse of the Soviet Union and the tightening of the US embargo. Dr. Román—who was at the time Chief of Neuroepidemiology at the US National Institutes of Health—was a participant in this scientific mission and describes the neurological symptoms experienced by the victims of this epidemic disease, and narrates the epidemiologists’ detective work struggling to solve the mystery. This book combines neuroscience and scientific discovery with political intrigue, finally bringing the reader to the unexpected solution provided by a WWII survivor of Changi POW Camp in Singapore. Cuban Blindness: Diary of a Mysterious Epidemic Neuropathy is a description of the neuroepidemiological study undertaken to identify the cause of the epidemic neurological disease that affected Cuba in 1993-1994. Summarizes clinical manifestations in prototypical case reports Analyzes possible neurological and neuroepidemiological causes from possible viruses to toxins Discusses the health ramifications of political decisions surrounding the Cuban Embargo Describes the implementation of treatment and preventive measures
The orange juice chain is unique, probably a sui generis commodity. Although several countries produce oranges and juices, two regions in the world are the responsible for around 80% of the production. These are the states of Sao Paulo in Brazil and Florida in the USA. Although the emerging countries are growing in production, the juice consumer is also concentrated in the USA and Europe where more than 90% of consumption takes place. The characteristics of this chain are so unique, that it makes a nice laboratory for academics and business people to exercise strategies, since risk is spread. Orange is a very sensitive plant, and fluctuations in production are notorious. The logistics of this chain are fascinating. The product travels great distances to reach the consumer in a generally safe and efficient way. The industry assets such as vessels and tanks are specific. By reading this book, business people, academics and chain practitioners have an opportunity to understand this chain. and can analyse all of its numbers and economics and exercise strategy building. This is needed since the orange juice market is a stable market in the world, growing only 1% per year, and the production costs of this chain are rising fast, due to structural changes faced by world food and agribusiness companies i.e. labour costs, energy costs, land costs, environmental costs and others. The book will be of interest to all those concerned with agri food chains.
The violation of charge-conjugation and parity symmetries is a leading area of research in particle and nuclear physics, with important implications for understanding the generation of matter in the universe. This book provides a self-contained introduction and is designed to bring beginning researchers to the forefront of the field.
Paves the way for new industrial applications using redox biocatalysis Increasingly, researchers rely on the use of enzymes to perform redox processes as they search for novel industrial synthetic routes. In order to support and advance their investigations, this book provides a comprehensive and current overview of the use of redox enzymes and enzyme-mediated oxidative processes, with an emphasis on the role of redox enzymes in chemical transformations. The authors examine the full range of topics in the field, from basic principles to new and emerging research and applications. Moreover, they explore everything from laboratory-scale procedures to industrial manufacturing. Redox Biocatalysis begins with a discussion of the biochemical features of redox enzymes as well as cofactors and cofactor regeneration methods. Next, the authors present a variety of topics and materials to the research and development of full-scale industrial applications, including: Biocatalytic applications of redox enzymes such as dehydrogenases, oxygenases, oxidases, and peroxidases Enzyme-mediated oxidative processes based on biocatalytic promiscuity All the steps from enzyme discovery to robust industrial processes, including directed evolution, high-throughput screening, and medium engineering Case studies tracing the development of industrial applications using biocatalytic redox reactions Each chapter ends with concluding remarks, underscoring the key scientific principles and processes. Extensive references serve as a gateway to the growing body of research in the field. Researchers in both academia and industry will find this book an indispensable reference for redox biotransformations, guiding them from underlying core principles to new discoveries and emerging industrial applications.
This groundbreaking work examines Latin America's prison crisis and the failure of mass incarceration policies. As crime rates rose over the past few decades, policy makers adopted incarceration as the primary response to public outcry. Yet, as the number of inmates increased, crime rates only continued to grow. Presenting new cross-national data based on extensive surveys of inmates throughout the region, this book explains the transformation of prisons from instruments of incapacitation, deterrence, and rehabilitation to drivers of violence and criminality. Bergman and Fondevila highlight the impacts of internal drug markets and the dramatic increase in the number of imprisoned women. Furthermore, they show how prisons are not isolated from society - they are sites of active criminal networks, with many inmates maintaining fluid criminal connections with the outside world. Rather than reducing crime, prisons have become an integral part of the crime problem in Latin America.
Take one elephant and one man to the top of a tower and simultaneously drop. Which will hit the ground first? You are a pilot of a jet fighter performing a high-speed loop. Will you pass out during the maneuver? How can you simulate being an astronaut with your feet still firmly placed on planet Earth? In the aerospace environment, human, animal, and plant physiology differs significantly from that on Earth, and this book provides reasons for some of these changes. The challenges encountered by pilots in their missions can have implications on the health and safety of not only themselves but others. Knowing the effects of hypergravity on the human body during high-speed flight led to the development of human centrifuges. We also need to better understand the physiological responses of living organisms in space. It is therefore necessary to simulate weightlessness through the use of specially adapted equipment, such as clinostats, tilt tables, and body suspension devices. Each of these ideas, and more, is addressed in this review of the physical concepts related to space flights, microgravity, and hypergravity simulations. Basic theories, such as Newton’s law and Einstein’s principle are explained, followed by a look at the biomedical effects of experiments performed in space life sciences institutes, universities, and space agencies. Table of Contents: General Concepts in Physics - Definition of Physical Terms / The Effects of Hypergravity on Biomedical Experiments / The Effects of Microgravity on Biomedical Experiments / References
The book provides a general, broad approach to aspects of perturbation theory. The aim has been to cover all topics of interest, from construction, analysis, and summation of perturbation series to applications. Emphasis is placed on simple methods, as well as clear, intuitive ideas stemming from the physics of systems of interest.
With the increased incidence of HPV-related genital diseases, including premalignant and malignant penile lesions, urologists and practitioners in general face numerous difficult challenges when attempting to diagnose genital lesions correctly. Despite the importance of genital lesions in the male, there are few books on the subject in the English medical literature. Male Genital Lesions will serve as an invaluable aid to the differential diagnosis of sexually transmitted infections, benign dermatological genital lesions, and premalignant and malignant genital disorders. More than 700 high-definition full-color figures of common disease presentations are included, with legends describing real clinical cases. The illustrations are supported by a concise, up-to-date text that describes etiology, pathology, clinical manifestations, laboratory tests, and treatment options for the individual diseases.
This book pursues a comparative and interdisciplinary approach to assess presidential impeachments in Latin America. Mixing methodologies from legal studies and political science, it provides a novel and comprehensive assessment of some of the most controversial questions regarding the constitutional function of impeachment and its place in the theory of government. Presidential impeachments have become frequent in Latin America, yet they are still largely misunderstood by legal practitioners and the general public. As such, impeachments frequently provide for heated and polarizing debates. The misunderstandings stem from skewed expectations arising from different theories of government, legal interpretation, and presidential impeachment. The empirical evidence and arguments presented here will help to find common ground on these topics and pacify some latent tensions in society and academia. In addition, the book’s case studies cover cases that have been rarely or incompletely addressed in the literature. Some cover events so recent that they have never been analyzed elsewhere. The book proposes reconsidering certain assumptions made about systems of government, which are based on skewed expectations of impeachments. It also draws on new evidence to re-examine existing impeachment theories and develop new ones. By doing so, it offers valuable insights that may guide lawmakers to redesign their own systems, optimizing them to achieve certain goals. It will also acquaint legal practitioners with the strategies of prosecution, defense, and decision-making in connection with impeachments.
This book explains the theory and application of evolutionary computer vision, a new paradigm where challenging vision problems can be approached using the techniques of evolutionary computing. This methodology achieves excellent results for defining fitness functions and representations for problems by merging evolutionary computation with mathematical optimization to produce automatic creation of emerging visual behaviors. In the first part of the book the author surveys the literature in concise form, defines the relevant terminology, and offers historical and philosophical motivations for the key research problems in the field. For researchers from the computer vision community, he offers a simple introduction to the evolutionary computing paradigm. The second part of the book focuses on implementing evolutionary algorithms that solve given problems using working programs in the major fields of low-, intermediate- and high-level computer vision. This book will be of value to researchers, engineers, and students in the fields of computer vision, evolutionary computing, robotics, biologically inspired mechatronics, electronics engineering, control, and artificial intelligence.
In this book, Gustavo G. Politis and Luis A. Borrero explore the archaeology and ethnography of the indigenous people who inhabited Argentina's Pampas and the Patagonia region from the end of the Pleistocene until the 20th century. Offering a history of the nomadic foragers living in the harsh habitats of the South America's Southern Cone, they provide detailed account of human adaptations to a range of environmental and social conditions. The authors show how the region's earliest inhabitants interacted with now-extinct animals as they explored and settled the vast open prairies and steppes of the region until they occupied most of its available habitats. They also trace technological advances, including the development of pottery, the use of bows and arrows, and horticulture. Making new research and data available for the first time, Politis and Borrero's volume demonstrates how geographical variation in the Southern Cone generated diverse adaptation strategies.
This book connects the work of US private foundations, the US government, and Brazilian intellectuals to explore how they worked collaboratively to address racial disparities in Brazil during the Cold War. It reveals not only how anti-racism was promoted during this period, shaping the political and academic agenda, but also the importance of American foundations, especially the Rockefeller and Ford Foundations, in the process. Drawing on a vast array of archival and published sources from Brazil, the United States, and around the world, the book investigates the making of transnational connections and networks that sought to respond to the "race problem", seen as an increasingly dangerous threat to the liberal international order. This book is especially relevant to the areas of Race Studies, Social Sciences, Latin-American Studies, Political Science and History, particularly the History of Sociology and Anthropology, as well as to studies about the role of American foundations in the Cold War period. It will also be of interest to activists, social scientists, economists, historians, journalists, NGOs, and INGOs.
Piracy CulturesEditorial Introduction MANUEL CASTELLS 1 University of Southern California GUSTAVO CARDOSO Lisbon University Institute (ISCTE-IUL) What are "Piracy Cultures"? Usually, we look at media consumption starting from a media industry definition. We look at TV, radio, newspapers, games, Internet, and media content in general, all departing from the idea that the access to such content is made available through the payment of a license fee or subscription, or simply because its either paid or available for free (being supported by advertisements or under a "freemium" business model). That is, we look at content and the way people interact with it within a given system of thought that sees content and its distribution channels as the product of relationships between media companies, organizations, and individualseffectively, a commercial relationship of a contractual kind, with accordant rights and obligations. But what if, for a moment, we turned our attention to the empirical evidence of media consumption practice, not just in Asia, Africa, and South America, but also all over Europe and North America? All over the world, we are witnessing a growing number of people building media relationships outside those institutionalized sets of rules. We do not intend to discuss whether we are dealing with legal or illegal practices; our launching point for this analysis is that, when a very significant proportion of the population is building its mediation through alternative channels of obtaining content, such behavior should be studied in order to deepen our knowledge of media cultures. Because we need a title to characterize those cultures in all their diversitybut at the same time, in their commonplacenesswe propose to call it "Piracy Cultures.
The Spanish Second Republic, 1931-1939, has been written about widely and remains mired in antifascist, anti-communist, and historical memory controversies. A deep dive into the Soviet, British intelligence and other European archives, this new book brings the majority consensus among historians of the Second Republic into question and sheds new light on the scale of Soviet communist activity in Spain before the outbreak of war in July 1936. Providing an in-depth analysis of Comintern (RGASPI) and other European archival documentation, much of which has not been discussed until now, Gustavo Martín Asensio here demonstrates the growing and fundamentally subversive activity of the Comintern within the socialist union and party, the armed forces and cultural influencers which culminated in the spring of 1936.
This book analyses the way that HIV/AIDS is often narrativised and represented in contemporary world cultures, as well as the different strategies of remembrance deployed by different (sub)cultural groups affected by the illness. Through a close study of a variety of cultural texts; including cinema, literature, theatre, art and photography amongst others, it demonstrates the trajectory that such narratives and representations have undergone since the advent of the ’discovery’ of the disease in the 1980s. Acknowledging the central - yet often overlooked - role that cultural products have played in the construction of public opinion towards the condition itself and those who suffer it, this ground-breaking volume focuses on a variety of narratives, as well as strategies of coping with HIV/AIDS that have emerged across the globe. Bringing together research on the UK, North and South America, Africa and China, it provides rich textual analyses of the ways in which the HIV positive body has been portrayed in contemporary culture, with attention to the differences between specific national contexts, whilst keeping in view a space of commonality amongst the different experiences reflected in such texts. As such, it will be of interest to social scientists and scholars of cultural and media studies, concerned with cultural production and representations of the body and sickness.
This book is a practical and comprehensive guide to the diagnosis and treatment of human papilloma virus (HPV)-related diseases from a urological perspective. It reviews new diagnostic methods for virus detection and typing, management of penile and urethral lesions, new treatment modalities including an overview of the use of lasers, the link between HPV and cancer, and new prevention methods with an update on HPV vaccines.
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