Databaser

A FINANCIAL TIMES BOOK OF THE YEARA call to action for the creative class and labour movement to rally against the power of Big Tech and Big Media.Corporate concentration has breached the stratosphere, as have corporate profits. An ever-expanding constellation of industries are now monopolies (where sellers have excessive power over buyers) or monopsonies (where buyers hold the whip hand over sellers) - or both.Scholar Rebecca Giblin and writer and activist Cory Doctorow argue we're in a new era of 'chokepoint capitalism', with exploitative businesses creating insurmountable barriers to competition that enable them to capture value that should rightfully go to others. All workers are weakened by this, but the problem is especially well illustrated by the plight of creative workers. From Amazon's use of digital rights management and bundling to radically change the economics of book publishing, to Google and Facebook's siphoning away of ad revenues from news media, and the Big Three record labels' use of inordinately long contracts to up their own margins at the cost of artists, chokepoints are everywhere.By analysing book publishing and news, live music and music streaming, screenwriting, radio, and more, Giblin and Doctorow deftly show how powerful corporations construct 'anti-competitive flywheels' designed to lock in users and suppliers, make their markets hostile to new entrants, and then force workers and suppliers to accept unfairly low prices.Chokepoint Capitalism is a call to workers of all sectors to unite to help smash these chokepoints and take back the power and profit that's being heisted away - before it's too late.

A short and powerful guide to understanding branding and building successful brands.

"A concise and accessible introduction to exoplanets that explains the cutting-edge science behind recent discoveries. For centuries, people have speculated about the possibility of planets orbiting distant stars, but only since the 1990s has technology allowed astronomers to detect them. At this point, more than five thousand such exoplanets have been identified, with the pace of discovery accelerating after the launch of NASA's Transiting Exoplanet Satellite Survey and the Webb Space Telescope. In The Little Book of Exoplanets, Princeton astrophysicist Joshua Winn offers a brief and engaging introduction to the search for exoplanets and the cutting-edge science behind recent findings. In doing so, he chronicles the dawn of a new age of discovery-one that has rapidly transformed astronomy and our broader understanding of the universe. Scientists now know that many Sun-like stars host their own systems of planets, some of which may resemble our solar system and include planets similar to the Earth. But, Winn tells us, the most remarkable discoveries so far have been of planets with unexpected and decidedly un-Earth-like properties, which have upended what we thought we knew about the origins of planetary systems. Winn provides an inside view of the sophisticated detective work astronomers perform as they find and study exoplanets and describes the surprising-sometimes downright bizarre-planets and systems they have found. He explains how these discoveries are revolutionizing astronomy, and he explores the current status and possible future of the search for another Earth. Finally, drawing on his own and other scientists' work, he considers how the discovery of exoplanets and their faraway solar systems changes our perspectives on the universe and our place in it"--

"Tech giants like Facebook, Amazon, and Google can collect real-time data from billions of users. For companies that design and manufacture physical products, that type of fluid, data-rich information used to be a pipe dream. Now, with the rise of cheap and powerful sensors, computing power, and artificial intelligence, things are changing-fast. In Fusion Strategy, world-renowned innovation guru Vijay Govindarajan and digital strategy expert Venkat Venkataraman offer a first-of-a-kind playbook that will help companies combine what they do best-create physical products-with what digitals do best-use algorithms and artificial intelligence to parse ginormous, interconnected datasets-to make strategic connections that would otherwise be impossible. The laws of competitive advantage are changing, rewarding those who have the most robust real-time insights rather than the most valuable assets. To compete in the new digital age, companies need to use real-time data to turbocharge their products, strategies, and customer relationships. Or else they'll fall on the wrong side of the next great digital divide. Fusion Strategy is the way forward"--

'The 'Enfant terrible' of astrophysics . . . Loeb has a joy in conjecture and an omnivorous spirit of inquiry that are more reminiscent of 20th-century thinkers such as Freeman Dyson or Carl Sagan than most of his peers' The TimesCould we build space craft that could travel to distant stars? Could we augment human biology for spaceflight? Could the search for extraterrestrials be brought into the mainstream of scientific research?Avi Loeb tells us that in each case, the real question is not could we, but will we choose to? With an approach that is firmly grounded in cutting-edge science, he explores the potential for non-rocket space launch, deep space probes, and the technological preservation of human civilisation. He examines the evidence for UFOs and UAPs, and argues that the search for further evidence, using existing scientific technologies, is long overdue.Urgent and important, Noah's Spaceship is a mission statement and a blueprint for the future of humanity. Loeb explains why becoming interstellar is imperative for our civilization to survive - and how we can accomplish it.'One of the more imaginative and articulate scientists around' New York Times

En overskuelig og letlæselig håndsrækning til dig, der søger videnskabelig litteratur til dine studier eller din forskning. Sådan finder du videnskabelig litteratur er en grundbog i informationssøgning og henvender sig til dig, der er studerende på en videregående uddannelse eller søger videnskabelig litteratur som led i dit arbejde.Bogens første tre kapitler handler om de forskellige videnskabelige dokumenttyper, du leder efter, de databaser, du bruger til at søge dem, samt strukturen og indholdet af disse databaser.De næste fem kapitler handler om, hvordan du søger i databaserne, fra kombinatoriske søgninger over registersøgning til søgning efter kendt dokument, emnesøgning samt reference- og citationssøgning.Bogens sidste to kapitler handler om, hvordan du henholdsvis evaluerer og analyserer resultatet af søgeprocessen.Alle kapitler giver konkrete eksempler, der hjælper dig til selv at kunne foretage avancerede søgninger. Hvert kapitel indeholder desuden målrettede øvelser, som du kan bruge til at øve dine søgefærdigheder.

Welcome to this step-by-step guide for Excel users, data analysts, and finance specialists. It is designed to take you through practical report and development scenarios, including both the approach and the technical challenges. This book will equip you with an understanding of the overall Power Platform use case for addressing common business challenges. While Power BI continues to be an excellent tool of choice in the BI space, Power Platform is the real game changer. Using an integrated architecture, a small team of citizen developers can build solutions for all kinds of business problems. For small businesses, Power Platform can be used to build bespoke CRM, Finance, and Warehouse management tools. For large businesses, it can be used to build an integration point for existing systems to simplify reporting, operation, and approval processes.The author has drawn on his15 years of hands-on analytics experience to help you pivot from the traditional Excel-based reporting environment. By using different business scenarios, this book provides you with clear reasons why a skill is important before you start to dive into the scenarios. You will use a fast prototyping approach to continue to build exciting reporting, automation, and application solutions and improve them while you acquire new skill sets. The book helps you get started quickly with Power BI. It covers data visualization, collaboration, and governance practices. You will learn about the most practical SQL challenges. And you will learn how to build applications in PowerApps and Power Automate.The book ends with an integrated solution framework that can be adapted to solve a wide range of complex business problems.What You Will LearnDevelop reporting solutions and business applicationsUnderstand the Power Platform licensing and development environmentApply Data ETL and modeling in Power BIUse Data Storytelling and dashboard design to better visualize dataCarry out data operations with SQL and SharePoint listsDevelop useful applications using Power AppsDevelop automated workflows using Power AutomateIntegrate solutions with Power BI, Power Apps, and Power Automate to build enterprise solutionsWho This Book Is ForNext-generation data specialists, including Excel-based users who want to learn Power BI and build internal apps; finance specialists who want to take a different approach to traditional accounting reports; and anyone who wants to enhance their skill set for the future job market.

As data management and integration continue to evolve rapidly, storing all your data in one place, such as a data warehouse, is no longer scalable. In the very near future, data will need to be distributed and available for several technological solutions. With this practical book, youll learnhow to migrate your enterprise from a complex and tightly coupled data landscape to a more flexible architecture ready for the modern world of data consumption.Executives, data architects, analytics teams, and compliance and governance staff will learn how to build a modern scalable data landscape using the Scaled Architecture, which you can introduce incrementally without a large upfront investment. Author Piethein Strengholt provides blueprints, principles, observations, best practices, and patterns to get you up to speed.Examine data management trends, including technological developments, regulatory requirements, and privacy concernsGo deep into the Scaled Architecture and learn how the pieces fit togetherExplore data governance and data security, master data management, self-service data marketplaces, and the importance of metadata

Between major privacy regulations like the GDPR and CCPA and expensive and notorious data breaches, there has never been so much pressure to ensure data privacy. Unfortunately, integrating privacy into data systems is still complicated. This essential guide will give you a fundamental understanding of modern privacy building blocks, like differential privacy, federated learning, and encrypted computation. Based on hard-won lessons, this book provides solid advice and best practices for integrating breakthrough privacy-enhancing technologies into production systems. Practical Data Privacy answers important questions such as: What do privacy regulations like GDPR and CCPA mean for my data workflows and data science use cases? What does "anonymized data" really mean? How do I actually anonymize data? How does federated learning and analysis work? Homomorphic encryption sounds great, but is it ready for use? How do I compare and choose the best privacy-preserving technologies and methods? Are there open-source libraries that can help? How do I ensure that my data science projects are secure by default and private by design? How do I work with governance and infosec teams to implement internal policies appropriately?

Troubleshoot slow-performing queries and make them run faster. Database administrators and SQL developers are constantly under pressure to provide more speed. This new edition has been redesigned and rewritten from scratch based on the last 15 years of learning, knowledge, and experience accumulated by the author. The book Includes expanded information on using extended events, automatic execution plan correction, and other advanced features now available in SQL Server. These modern features are covered while still providing the necessary fundamentals to better understand how statistics and indexes affect query performance.The book gives you knowledge and tools to help you identify poorly performing queries and understand the possible causes of that poor performance. The book also provides mechanisms for resolving the issues identified, whether on-premises, in containers, or on cloud platform providers. You'll learn about key fundamentals, such as statistics, data distribution, cardinality, and parameter sniffing. You'll learn to analyze and design your indexes and your queries using best practices that ward off performance problems before they occur. You'll also learn to use important modern features, such as Query Store to manage and control execution plans, the automated performance tuning feature set, and memory-optimized OLTP tables and procedures. You will be able to troubleshoot in a systematic way. Query tuning doesn't have to be difficult. This book helps you to make it much easier.What You Will LearnUse Query Store to understand and easily change query performanceRecognize and eliminate bottlenecks leading to slow performanceTune queries whether on-premises, in containers, or on cloud platform providersImplement best practices in T-SQL to minimize performance riskDesign in the performance that you need through careful query and index designUnderstand how built-in, automatic tuning can assist your performance enhancement effortsProtect query performance during upgrades to the newer versions of SQL ServerWho This Book Is ForDevelopers and database administrators with responsibility for query performance in SQL Server environments, and anyone responsible for writing or creating T-SQL queries and in need of insight into bottlenecks (including how to identify them, understand them, and eliminate them)

In the late fifteenth century, the earth stood motionless at the center of a small, ordered cosmos. Around us, it was believed, the moon, the sun, and the planets revolved in crystalline spheres, their orbits perfect, eternally unchanging circles. Just over a century later, the sun was now the center of creation; the earth just another planet hurtling through empty, near-infinite space. This is the story of an astonishing change, a transformation in human thought, about both the universe and our place within it, told through the words of the astronomers and mathematicians at its heart.

The gripping inside story of Paypal, the company that created the digital age as we know it.

"Davis addresses the "screen time" debate by recognizing that children's experiences of technology and social relationships are qualitatively distinct at different stages of development"--