With this practical book, you'll explore text-mining techniques with tidytext, a package that authors Julia Silge and David Robinson developed using the tidy principles behind R packages like ggraph and dplyr. You'll learn how tidytext and other tidy tools in R can make text analysis easier and more effective.The authors demonstrate how treating text as data frames enables you to manipulate, summarize, and visualize characteristics of text. You'll also learn how to integrate natural language processing (NLP) into effective workflows. Practical code examples and data explorations will help you generate real insights from literature, news, and social media.Learn how to apply the tidy text format to NLPUse sentiment analysis to mine the emotional content of textIdentify a document's most important terms with frequency measurementsExplore relationships and connections between words with the ggraph and widyr packagesConvert back and forth between R's tidy and non-tidy text formatsUse topic modeling to classify document collections into natural groupsExamine case studies that compare Twitter archives, dig into NASA metadata, and analyze thousands of Usenet messages

    They are converted to metric units using realistic data to help students grasp what is feasible in engineering practice.

    Apart from flying Alouette helicopter gunships in Angola, he has fought in the Balkan War (for Islamic forces), tried to resuscitate Mobutu’s ailing air force during his final days ruling the Congo, flew Mi-8s for Executive Outcomes, and thereafter an Mi-8 fondly dubbed 'Bokkie' for Colonel Tim Spicer in Sierra Leone. Finally, with a pair of aging Mi-24 Hinds, Ellis ran the Air Wing out of Aberdeen Barracks in the war against Sankoh's vicious RUF rebels. For the past two years, as a “civilian contractor,” Ellis has been flying helicopter support missions in Afghanistan, where, he reckons, he has had more close shaves than in his entire previous four-decades put together.Twice, single-handedly (and without a copilot), he turned the enemy back from the gates of Freetown, effectively preventing the rebels from overrunning Sierra Leone’s capital—once in the middle of the night without the benefit of night vision goggles. Nellis (as his friends call him) was also the first mercenary to work hand-in-glove with British ground and air assets in a modern guerrilla war. In Sierra Leone, Ellis' Mi-24 (“it leaked when it rained”) played a seminal role in rescuing the 11 British soldiers who had been taken hostage by the so-called West Side Boys. He also used his helicopter numerous times to fly SAS personnel on low-level reconnaissance missions into the interior of the diamond-rich country, for the simple reason that no other pilot knew the country—and the enemy—better than he did.Al Venter, the author of War Dog and other acclaimed titles, accompanied Nellis on some of these missions. “Occasionally we returned to base with holes in our fuselage,” Venter recounts, “though once it was self-inflicted: in his enthusiasm during an attack on one of the towns in the interior, a side-gunner onboard swung his heavy machine-gun a bit too wide and hit one of our drop tanks. Had it been full at the time, things might have been different.” The upshot was that over the course of a year of military operations, the two former Soviet helicopters operated for the Sierra Leone Air Wing by Nellis and his boys were patched more often than any other comparable pair of gun ships in Asia, Africa or Latin America. Nellis himself earned a price on his head: some reports spoke of a $1 million reward dead or alive while others doubled it.This book describes the full career of this storied aerial warrior, from the bush and jungles of Africa to the forests of the Balkans and the merciless mountains of today’s Afghanistan. Along the way the reader encounters a multiethnic array of enemies ranging from ideological to cold-blooded to pure evil, as well as well as examples of incredible heroism for hire.

    From entertainment to politics, from technology to advertising and from science to the business world, understanding and using data is now one of the most transferable and transferable skills out there. Learning how to work with data may seem intimidating or difficult but with Confident Data Skills you will be able to master the fundamentals and supercharge your professional abilities. This essential book covers data mining, preparing data, analysing data, communicating data, financial modelling, visualizing insights and presenting data through film making and dynamic simulations.In-depth international case studies from a wide range of organizations, including Netflix, LinkedIn, Goodreads, Deep Blue, Alpha Go and Mike's Hard Lemonade Co. show successful data techniques in practice and inspire you to turn knowledge into innovation. Confident Data Skills also provides insightful guidance on how you can use data skills to enhance your employability and improve how your industry or company works through your data skills. Expert author and instructor, Kirill Eremenko, is committed to making the complex simple and inspiring you to have the confidence to develop an understanding, adeptness and love of data.

    However, rather than resting on that reputation, the new edition of this text marks a significant advance in the already excellent quality of the book. While preserving concise language, state of the art educational pedagogy, and top-notch worked examples, the Eighth Edition features a unified art design as well as streamlined and carefully reorganized problem sets that enhance the thoughtful instruction for which Raymond A. Serway and John W. Jewett, Jr. earned their reputations. Likewise, PHYSICS FOR SCIENTISTS AND ENGINEERS, will continue to accompany Enhanced WebAssign in the most integrated text-technology offering available today. In an environment where new Physics texts have appeared with challenging and novel means to teach students, this book exceeds all modern standards of education from the most solid foundation in the Physics market today.

    Scott Carpenter was America's fourth man in space, his 1962 three-orbit mission in a tiny Mercury capsule closely paralleling that of John Glenn's previous mission. But that's where the similarities end: a malfunctioning navigational system caused Carpenter to splash down, dangerously, some 250 miles off-target, and Glenn's fame would somehow forever eclipse that of all seven of his fellow original astronauts combined. This memoir, penned in conjunction with Carpenter's daughter Kris, oddly distances itself from Carpenter's life through use of a third-person narrative (only the astronaut's calm account of his perilous mission is delivered directly in his voice), a device that ultimately echoes the more personal distances Carpenter endured in his own fateful, if troubled, journey toward the stars. While Carpenter may have been able to trace his lineage back to the Plymouth colony of the 1630s, his immediate family seemed shattered. His research-chemist father was successful but absent, his mother often a bedridden invalid. Carpenter's journey to the Mercury program after a Rocky Mountain childhood and a stint on lumbering Naval patrol planes is one of the more unlikely of the original astronaut class, and he offers up his own perspectives on what has become a compelling body of American folklore (thanks largely to Tom Wolfe's The Right Stuff and the memoirs of other participants). While the account of NASA's infancy seems quaint, its officialdom often comes off as nothing short of cutthroat, perhaps inspiring the pioneering spaceman to the book's final adventures exploring a distinctly different frontier--the bottom of the ocean--as part of the Navy's endurance-minded SeaLab program. --Jerry McCulley

    Now in its sixth edition, this classic text continues its long-standing tradition of offering unparalleled guidance in the development of pharmaceutical care plans. The book provides a unique process of thinking about pharmacotherapy the process which uses evidence-based approaches to the drug treatment of diseases. Features: *FREE Online Resource Center for professors and students - study materials, web chapters, questions and answers, and updates *NEW Key Concepts begin each chapter *Excellent use of algorithms, tables, and charts - provides clear recommendations *"Clinical Controversies" in the treatment sections of disease-oriented chapters

    It aims to give readers a fundamental overview of the technologies that make up the telecommunications infrastructure.

    I heartily recommend his book to all Egyptology buffs.”—Barbara Mertz ( a.k.a. Elizabeth Peters), author of Temples, Tombs, and Hieroglyphs A real-life “Indiana Jones,” Donald P. Ryan, Ph.D., offers a breathtaking personal account of his adventures in archaeology in Beneath the Sands of Egypt. Fans of The Lost City of Z will thrill to the exploits of this “unconventional archaeologist” as he retrieves the remains of Egypt’s past—including his breakthrough discovery in the Valley of the Kings of Egypt’s famous female pharaoh, Hatshepsut.

    1(F) Squadron RAF, flew air interdiction, armed reccon, close-air-support and airfield attack as well as pure photo-reccon missions. Most weapons were delivered from extreme low-level attacks because of the lack of navigation aids and in the absence of Smart weapons. The only way he could achieve results was to get low down and close-in to the targets and, if necessary, carry out re-attacks to destroy high-value targets. Apart from brief carrier trials carried out many years previously there had been no RAF Harriers deployed at sea. The RAF pilots were treated with ill-disguised contempt by their naval masters, their professional opinions ignored in spite of the fact that the RN knew next to nothing about ground-attack and reccon operations. Very soon after starting operations from the aircraft carrier HMS Hermes the squadron realized that they were considered as more or less expendable ordnance. The Harriers lacked the most basic self-protection aids and were up against 10,000 well-armed troops who put up an impressive weight of fire whenever attacked. "

    The text is based on the modern limit states approach to design and covers areas such as the properties of steel, types of steel structures, important areas of structural steel technology, bolted connections, welded connection, design of trusses, design of plate girders, and design of beam columns. Each chapter features solved examples, review questions, and practice problems as well as ample illustrations that supplement the text. Chapters on advanced topics such as protection of steel structures against corrosion and fire, fatigue resistant design, and design for torsion have been included in a CD that accompanies the book.

    Real stories about the patients, nurses, consulting physicians, and daily life of a busy Emergency Department. Get a glimpse inside the inner workings of an Emergency Department and the staff that works there, caring for patients and their families. From a toddler who can cuss a blue streak, a dead mouse brought into the Emergency Department, to critical resuscitations, these are stories that you will never forget.

    Parker removes that pain by offering an opportunity to Get-to-Know the 'Master of Electricity,' to learn of his youth and upbringing, his early career, and of course his pivotal role in advancing the World into the Electrical Age! Turn these pages and enjoy the opportunity to learn history, but better yet to come to know Tesla better through Parker’s amazing ability to describe his life, his eccentricities and above all, his accomplishments; making this an enjoyable and interesting Quick-Read Biography. This Book also Comes with a FREE Gift!

    Integrated central case studies woven throughout each chapter, use real-life stories to give you a tangible and engaging framework around which to learn and understand the science behind environmental issues. Printed on FSC (Forest Stewardship Council) certified paper, the newly revised Fourth Edition engages you through the addition of new EnvisionIt photo essays.