Elizabeth Warren is the senior U.S. Senator from Massachusetts. A former Harvard Law School professor, she is the author of ten books, including A Fighting Chance, a national bestseller that received widespread critical acclaim. One of nation’s most influential progressives, she has long been a champion of working families and the middle class. The mother of two and grandmother of three, she lives in Cambridge, Massachusetts, with her husband, Bruce Mann.

John Gribbin gained a PhD from the Institute of Astronomy in Cambridge (then under the leadership of Fred Hoyle), before working as a science journalist for Nature and later New Scientist. Mary Gribbin is a teacher with a special gift for communicating difficult concepts, and she is a previous winner of the TES Junior Information Book Award. They have co-written several titles for adults and children. John has written many bestselling popular science books, including Erwin Schr?dinger and the Quantum Revolution, In Search of the Multiverse and The Universe: A Biography. John and Mary are both Visiting Fellows at the University of Sussex.

Adam Nicolson is the author of many books on history, travel and the environment. He is the winner of the Somerset Maugham Award, the British Topography Prize and the WH Heinemann Award. He lives on a farm in Sussex. This is his fith book for HarperCollins – his previous four being ‘Men of Honour’, ‘Sea Room’, ‘Power and Glory’ and ‘Seamanship’.

Demersul Antoanetei Olteanu, reputat? traduc?toare de limba rus? ?iexpert? ?n istoria cultural? a Rusiei, se distinge at?t prin calitatea informa?iilor, adesea inedite, c?t ?i prin compozi?ia complex?, care ?mbin? viziunea sintetic? cu o perspectiv? transcultural? exersat?. Cartea se recomand? de la sine at?t cititorului profesionist, care g?se?te aici o serie de date altfel greu accesibile, c?t ?i celui interesat de istoria ?i cultura Europei ?n ansamblu. Dup? cum anun?? ?i subtitlul, lucrarea reconstituie o istorie cultural? a secolului al XIX-lea, realiz?nd, ?n fapt, o fresc? a uneia dintre cele mai captivante perioade din istoria Rusiei, cea imperial?. Datele prezentate acoper? practic toate Aspectele vie?ii politice, sociale, economice ?i culturale ale acestui interval de timp, marcat at?t de aura ?arilor, c?t ?i de nenum?ratele revolte populare. Tabloul evenimentelor majore este ?ntregit cu minu?ioase inventare de titluri nobiliare, cu date economice consemnate cu acribie, cu o expunere vie a panoramei cutumelor sociale, familiale ?i religioase, merg?nd de la modalit??ile de confec?ionare a juc?riilor sau a bijuteriilor p?n? la istorii ale ceaiului sau vodcii. Atmosfera epocii cap?t? un contur des?v?r?it prin citarea unor fragmente din lucr?ri ?tiin?ifice de referin??, din jurnalele de c?l?torie ?i din publicistica vremii, dar ?i din operele marilor scriitori ai vremii, ca Dostoievski, Gogol ?i Tolstoi. Se contureaz?, astfel, o imagine neconven?ional? a Rusiei, o na?iune confruntat? permanent cu tensiunea unei alegeri fundamentale, care pune ?n opozi?ie modelul str?in ?i inegalabila for?? intern?. Autoarei ?i revine meritul de a fi surprins aspectele esen?iale ale acestei tensiuni, cu ample ecouri ?n perioadamodern? ?i cu evidente efecte asupra mentalit??ii contemporane.

Bestseller interna?ional Descoperi?i volumul al VI-lea dintr-o serie de c?r?i pentru copii a c?ror popularitate a dep??it orice a?tept?ri! ?Pisicile r?zboinice” s-au v?ndut ?n mai mult de 14 milioane de volume ?n peste 20 de ??ri ?i au ap?rut pe lista ?New York Times” a celor mai v?ndute titluri. De genera?ii ?ntregi, patru clanuri de pisici s?lbatice convie?uiesc ?n p?dure, departe de oameni. Au un cod al onoarei ?i pre?uiesc loialitatea. Se antreneaz? ca r?zboinici pentru a-?i proteja Clanurile. Folosesc remedii naturiste pentru a se vindeca. Respect? legile statornicite de ?nainta?i. Sunt ghidate ?n ac?iunile lor de spiritele str?mo?ilor r?zboinici, reuni?i ?n Clanul Stelelor. Ro?covanul este un fost pisoi de cas? care s-a dovedit a fi puternic ?i descurc?re? ?n s?lb?ticie. Dup? ce a fost acceptat ca ucenic ?n Clanul Tunetului sub numele de Lab? de Foc, a primit titulatura de r?zboinic ?i numele Inim? de Foc. Mai departe, vitejia l-a adus p?n? la pozi?ia de secund ?n clan. Pe m?sur? ce conduc?toarea Stea Albastr? se simte tot mai r?u, Inim? de Foc este nevoit s? preia fr?iele. ?n cele din urm?, cel care fusese c?ndva un pisoi de cas? va ajunge chiar liderul Clanului Tunetului, sub numele de Stea de Foc. Dar, tocmai acum, luptele pentru onoare ?i teritoriu devin din ce ?n ce mai ?ncr?ncenate, iar ?ndoielile ?i tr?darea afecteaz? toate clanurile. Pisicile din p?dure tr?iesc vremuri ?ntunecate... Clanul Tunetului este nevoit s? porneasc? la lupt? ?mpotriva lui Stea de Tigru, conduc?torul Clanului Umbrelor. Comploturile ?i setea lui ne??rmurit? de putere arunc? toate cele patru clanuri ?ntr-un r?zboi s?ngeros. Stea de Foc se preg?te?te s?-?i ?nfrunte du?manul, ?ns? pericolul cel mai mare p?nde?te ?n umbr?, lovind pe nea?teptate. Din r?ndul clanurilor se vor ridica noi eroi, iar unii dintre ace?tia ??i vor g?si sf?r?itul... Cele mai sumbre prevestiri ale str?bunilor r?zboinici din Clanului Stelelor se transform? ?n realitate. Pentru a-?i salva clanul, Stea de Foc trebuie s? ?n?eleag? profe?ia lor: ?Cele patru vor deveni dou?. Leul ?i tigrul se vor ?nfrunta ?n lupt?, iar s?ngele va domni ?n p?dure”. Volumul cuprinde h?r?i ?i simboluri din via?a pisicilor r?zboinice. ?O poveste plin? de aventur?, care v? va ?ine cu sufletul la gur?.” - Publishers Weekly ?Un episod palpitant din aventurile pisicilor r?zoinice, care va fi cu siguran?? pe placul cititorilor.“ - ALA Booklist ?Povestea este mereu surprinz?toare; personajele sunt ?nzestrate cu tabieturi ?i comportamente feline autentice.” - VOYA Din aceea?i serie: Pisicile R?zboinice. Cartea I - ?n inima p?durii Pisicile R?zboinice. Cartea II – Foc ?i ghea?? Pisicile R?zboinice. Cartea III – P?durea secretelor Pisicile R?zboinice. Cartea IV – Furtuna Pisicile R?zboinice. Cartea V – O cale primejdioas? ?n cur?nd, apare seria ?Noua profe?ie”! Genera?ia urm?toare se confrunt? cu o profe?ie sumbr?, care amenin?? nu numai clanurile de pisici, ci ?ntreaga p?dure.

O istorie politico-sentimental? a capitalei noastre. De ce o istorie politico-sentimental?? Pentru c?, ?n evolu?ia Bucure?tiului, de-alungul secolelor, afacerile politice s-au ?mpletit adesea, inevitabil, cu b?t?ile inimii. Chiar prima perioad? a cet??ii, ca ?i capital? domneasc?, tutelat? de figu ra dominant? a doamnei Chiajna, poate fi b?nuit? de un senzualism crud care a deschis drum acelui fenomen pe care Ionescu-Gion ?l numea at?t de plastic ?ginecolatrie“, adic? ascultarea dovedit? de domnitorii valahi fa?? de so?iile lor.

C?teva dintre calit??ile pe care eu le apreciez cel mai mult la o carte sunt simplitatea scriiturii, lipsa de preten?ii intelectuale (prin intermediul c?rora autorul ar vrea s? arate c?t e el de de?tept) ?i naturale?ea textului, adic? autenticitatea. ?#confuz” are toate aceste calit??i. ?n plus, cartea mai beneficiaz? de c?teva atuuri foarte importante: povestea este una universal?, plin? de ?nt?mpl?ri credibile, care se pot ?nt?mpla oric?rui om ?i care pot avea loc oriunde ?n lume, iar scriitura are o oralitate u?or de identificat ?nc? de la primele pagini. (Adrian Tele?pan) ?#confuz” nu e o carte despre homosexualitate. E o carte despre oameni. Despre drumul fiec?ruia spre el ?nsu?i. Despre puterea de a accepta ce g?se?ti atunci c?nd ajungi la tine. Despre a nu te (mai) min?i. Nu atunci c?nd e?ti singur ?i gol ?i te prive?ti ?n ochii sufletului. Pentru c?, atunci, nu ?i vei mai min?i nici pe al?ii. Iar ?sta e primul pas spre asumare. ?i numai a?a vei putea fi fericit. ?#confuz” e o carte despre fericire. Copile, via?a e prea scurt? pentru a fi nefericit. Vrei s? fii o alt? umbr? care trece indiferent? prin via??? (Laura Nureldin) ?ti?i melodiile alea pe care le auzi o singur? dat? ?i te treze?ti fredon?ndu-le o or? mai t?rziu? E semn c? au intrat ?n tine. Cam a?a e ?i cu cartea asta. Nu e Beethoven. E un c?ntec care pare n?scut la o chitar?, pe plaj?, l?ng? un foc de tab?r?, sub luna plin?. ?l ascul?i z?mbind ?i ??i d? o stare de plin. ??i r?m?ne pe piele ca ni?te fire de nisip. G?ndul nu ??i fuge ?n alt? parte. E?ti acolo, ascul?i ?i admiri sinceritatea omului care improvizeaz? la chitar? f?r? s? ?ncerce s? ??i demonstreze nimic. C?nt? liber despre ceva-ul lui, timpul trece pe nesim?ite, s?dind ?n tine o senza?ie de bine. S? mai c?n?i, Alex! S? mai c?n?i! (Natalie Ester) Dincolo de sui?uri ?i cobor??uri, de momente-surpriz? ?i certuri interminabile, de scene erotice pasionale ?i absurd cotidian, acest roman e un incredibil de reu?it portret al energiei s?lbatice, al confuziei mascate ?n obstina?ie, pe care numai la 20 de ani o po?i tr?i. ?i tu, drag? cititorule, ai fost confuz odat?. ?i ce bine a fost. Lectur? pl?cut?. (Lorena Lupu)

Holtodiglan

Motanul, romanul din 1997 al lui Pat Gray, este o alegorie politic? plin? de umor. C?nd animalele se v?d r?mase singure ?n casa p?r?sit? de st?p?ni, huzurul pa?nic de p?n? atunci las? locul luptei pentru supravie?uire ?i putere. Ce ambi?ii are Motanul? Ce pune la cale ?obolanul? Ce g?nde?te meditativul ?oarece? Vom afla din aceast? poveste care a fost pe bun? dreptate comparat? de critici cu Ferma animalelor orwellian?.

Rendhagyó útinapló egy egzotikus világról és a n?i lélekr?l Akkor kezdtem ábrándozni a ?sz?késr?l”, amikor gyerekkoromban beszereztem egy már akkor is ciki pálmafás-tengerpartos posztert a zsebpénzemb?l, és felragasztottam a gyerekszobám falára, nem zavartatva magam szüleim d?bbent pillantásától. Attól kezdve a téli estéken odaképzeltem magam a kókuszpálma alá, ahol h?ség van, és – bár akkor még nem jártam tengerparton – szinte hallottam a tenger zúgását, egészen elalvásig. Elérkezett az id?, hogy beváltsam a magamnak tett ígéretet, és teljesülj?n a gyerekkori álmom: néhány éve télen ?megsz?ktem” kedvenc városomba, Bangkokba, és k?rbeutaztam Délkelet-?zsiát. Találkozásokról, naplementékr?l, ázsiai mesékr?l és elképeszt? sorsokról, egzotikus nagyvárosi lüktetésr?l, lakatlan szigetekr?l és egy másfajta életszemléletr?l szól ez a k?nyv, amit egy thai pálma alatt kezdtem írni. ?t forró, napsütéses téli hónap alatt sokat tanultam, és szinte minden megváltozott bennem és k?rül?ttem: a sors akaratából megtanultam elengedni, sorsfordító d?ntéseket hoztam, szembenéztem ?nmagammal, az újságíróval, a n?vel, az emberrel, mint talán még soha azel?tt. Ez a k?nyv nem a képzelet szüleménye, de ahányszor beleolvasok, a képzeletemben újra utazom, újra ott vagyok azok k?z?tt az emberek k?z?tt, akikt?l meg lehet tanulni ?LNI. Csupa nagybet?vel. Fej?s ?va

This is a practical, hands-on book, with a lot of code and images. It presents the real code that generates every image and describes almost every single line of it, so that you know exactly what's going on. Introductory, de*ive, and theoretical parts are mixed with examples, so that reading and understanding them is easy. All of the examples build gradually with code snippets, their explanations, and plot images where necessary with the complete code and output presented at the end. This book is essentially for Python developers who have a good knowledge of Python; no knowledge of Matplotlib is required. You will be creating 2D plots using Matplotlib in no time at all.

Over 100 effective recipes to help you design, implement, and manage the software-defined and massively scalable Ceph storage systemAbout This BookImplement a Ceph cluster successfully and gain deep insights into its best practicesHarness the abilities of experienced storage administrators and architects, and run your own software-defined storage systemThis comprehensive, step-by-step guide will show you how to build and manage Ceph storage in production environmentWho This Book Is ForThis book is aimed at storage and cloud system engineers, system administrators, and technical architects who are interested in building software-defined storage solutions to power their cloud and virtual infrastructure. If you have basic knowledge of GNU/Linux and storage systems, with no experience of software defined storage solutions and Ceph, but eager to learn this book is for you.What You Will LearnUnderstand, install, configure, and manage the Ceph storage systemGet to grips with performance tuning and benchmarking, and gain practical tips to run Ceph in productionIntegrate Ceph with OpenStack Cinder, Glance, and nova componentsDeep dive into Ceph object storage, including s3, swift, and keystone integrationBuild a Dropbox-like file sync and share service and Ceph federated gateway setupGain hands-on experience with Calamari and VSM for cluster monitoringFamiliarize yourself with Ceph operations such as maintenance, monitoring, and troubleshootingUnderstand advanced topics including erasure coding, CRUSH map, cache pool, and system maintenanceIn DetailCeph is a unified, distributed storage system designed for excellent performance, reliability, and scalability. This cutting-edge technology has been transforming the storage industry, and is evolving rapidly as a leader in software-defined storage space, extending full support to cloud platforms such as Openstack and Cloudstack, including virtualization platforms. It is the most popular storage backend for Openstack, public, and private clouds, so is the first choice for a storage solution. Ceph is backed by RedHat and is developed by a thriving open source community of individual developers as well as several companies across the globe.This book takes you from a basic knowledge of Ceph to an expert understanding of the most advanced features, walking you through building up a production-grade Ceph storage cluster and helping you develop all the skills you need to plan, deploy, and effectively manage your Ceph cluster. Beginning with the basics, you’ll create a Ceph cluster, followed by block, object, and file storage provisioning. Next, you’ll get a step-by-step tutorial on integrating it with OpenStack and building a Dropbox-like object storage solution. We’ll also take a look at federated architecture and CephFS, and you’ll dive into Calamari and VSM for monitoring the Ceph environment. You’ll develop expert knowledge on troubleshooting and benchmarking your Ceph storage cluster. Finally, you’ll get to grips with the best practices to operate Ceph in a production environment.Style and approach This step-by-step guide is filled with practical tutorials, making complex scenarios easy to understand.

A practical, indispensable security guide that will navigate you through the complex realm of securely building and deploying systems in our IoT-connected world About This Book Learn to design and implement cyber security strategies for your organization Learn to protect cyber-physical systems and utilize forensic data analysis to beat vulnerabilities in your IoT ecosystem Learn best practices to secure your data from device to the cloud Gain insight into privacy-enhancing techniques and technologies Who This Book Is For This book targets IT Security Professionals and Security Engineers (including pentesters, security architects and ethical hackers) who would like to ensure security of their organization's data when connected through the IoT. Business analysts and managers will also find it useful. What You Will Learn Learn how to break down cross-industry barriers by adopting the best practices for IoT deployments Build a rock-solid security program for IoT that is cost-effective and easy to maintain Demystify complex topics such as cryptography, privacy, and penetration testing to improve your security posture See how the selection of individual components can affect the security posture of the entire system Use Systems Security Engineering and Privacy-by-design principles to design a secure IoT ecosystem Get to know how to leverage the burdgening cloud-based systems that will support the IoT into the future. In Detail With the advent of Intenret of Things (IoT), businesses will be faced with defending against new types of threats. The business ecosystem now includes cloud computing infrastructure, mobile and fixed endpoints that open up new attack surfaces, a desire to share information with many stakeholders and a need to take action quickly based on large quantities of collected data. . It therefore becomes critical to ensure that cyber security threats are contained to a minimum when implementing new IoT services and solutions. . The interconnectivity of people, devices, and companies raises stakes to a new level as computing and action become even more mobile, everything becomes connected to the cloud, and infrastructure is strained to securely manage the billions of devices that will connect us all to the IoT. This book shows you how to implement cyber-security solutions, IoT design best practices and risk mitigation methodologies to address device and infrastructure threats to IoT solutions. This book will take readers on a journey that begins with understanding the IoT and how it can be applied in various industries, goes on to describe the security challenges associated with the IoT, and then provides a set of guidelines to architect and deploy a secure IoT in your Enterprise. The book will showcase how the IoT is implemented in early-adopting industries and describe how lessons can be learned and shared across diverse industries to support a secure IoT. Style and approach This book aims to educate readers on key areas in IoT security. It walks readers through engaging with security challenges and then provides answers on how to successfully manage IoT security and build a safe infrastructure for smart devices. After reading this book, you will understand the true potential of tools and solutions in order to build real-time security intelligence on IoT networks.

Build scalable, reliable, and cost-effective applications with a serverless architecture About This Book ? Design a real-world serverless application from scratch ? Learn about AWS Lambda function and how to use Lambda functions to glue other AWS Services ? Use the Java programming language and well-known design patterns. Although Java is used for the examples in this book, the concept is applicable across all languages ? Learn to migrate your JAX-RS application to AWS Lambda and API Gateway Who This Book Is For This book is for developers and software architects who are interested in designing on the back end. Since the book uses Java to teach concepts, knowledge of Java is required. What You Will Learn ? Learn to form microservices from bigger Softwares ? Orchestrate and scale microservices ? Design and set up the data flow between cloud services and custom business logic ? Get to grips with cloud provider’s APIs, limitations, and known issues ? Migrate existing Java applications to a serverless architecture ? Acquire deployment strategies ? Build a highly available and scalable data persistence layer ? Unravel cost optimization techniques In Detail Over the past years, all kind of companies from start-ups to giant enterprises started their move to public cloud providers in order to save their costs and reduce the operation effort needed to keep their shops open. Now it is even possible to craft a complex software system consisting of many independent micro-functions that will run only when they are needed without needing to maintain individual servers. The focus of this book is to design serverless architectures, and weigh the advantages and disadvantages of this approach, along with decision factors to consider. You will learn how to design a serverless application, get to know that key points of services that serverless applications are based on, and known issues and solutions. The book addresses key challenges such as how to slice out the core functionality of the software to be distributed in different cloud services and cloud functions. It covers basic and advanced usage of these services, testing and securing the serverless software, automating deployment, and more. By the end of the book, you will be equipped with knowledge of new tools and techniques to keep up with this evolution in the IT industry. Style and approach The book takes a pragmatic approach, showing you all the examples you need to build efficient serverless applications.

Use scikit-learn to apply machine learning to real-world problems About This Book ? Master popular machine learning models including k-nearest neighbors, random forests, logistic regression, k-means, naive Bayes, and artificial neural networks ? Learn how to build and evaluate performance of efficient models using scikit-learn ? Practical guide to master your basics and learn from real life applications of machine learning Who This Book Is For This book is intended for software engineers who want to understand how common machine learning algorithms work and develop an intuition for how to use them, and for data scientists who want to learn about the scikit-learn API. Familiarity with machine learning fundamentals and Python are helpful, but not required. What You Will Learn ? Review fundamental concepts such as bias and variance ? Extract features from categorical variables, text, and images ? Predict the values of continuous variables using linear regression and K Nearest Neighbors ? Classify documents and images using logistic regression and support vector machines ? Create ensembles of estimators using bagging and boosting techniques ? Discover hidden structures in data using K-Means clustering ? Evaluate the performance of machine learning systems in common tasks In Detail Machine learning is the buzzword bringing computer science and statistics together to build smart and efficient models. Using powerful algorithms and techniques offered by machine learning you can automate any analytical model. This book examines a variety of machine learning models including popular machine learning algorithms such as k-nearest neighbors, logistic regression, naive Bayes, k-means, decision trees, and artificial neural networks. It discusses data preprocessing, hyperparameter optimization, and ensemble methods. You will build systems that classify documents, recognize images, detect ads, and more. You will learn to use scikit-learn’s API to extract features from categorical variables, text and images; evaluate model performance, and develop an intuition for how to improve your model’s performance. By the end of this book, you will master all required concepts of scikit-learn to build efficient models at work to carry out advanced tasks with the practical approach. Style and approach This book is motivated by the belief that you do not understand something until you can describe it simply. Work through toy problems to develop your understanding of the learning algorithms and models, then apply your learnings to real-life problems.

Develop deep neural networks in Theano with practical code examples for image classification, machine translation, reinforcement agents, or generative models. About This Book ? Learn Theano basics and evaluate your mathematical expressions faster and in an efficient manner ? Learn the design patterns of deep neural architectures to build efficient and powerful networks on your datasets ? Apply your knowledge to concrete fields such as image classification, object detection, chatbots, machine translation, reinforcement agents, or generative models. Who This Book Is For This book is indented to provide a full overview of deep learning. From the beginner in deep learning and artificial intelligence, to the data scientist who wants to become familiar with Theano and its supporting libraries, or have an extended understanding of deep neural nets. Some basic skills in Python programming and computer science will help, as well as skills in elementary algebra and calculus. What You Will Learn ? Get familiar with Theano and deep learning ? Provide examples in supervised, unsupervised, generative, or reinforcement learning. ? Discover the main principles for designing efficient deep learning nets: convolutions, residual connections, and recurrent connections. ? Use Theano on real-world computer vision datasets, such as for digit classification and image classification. ? Extend the use of Theano to natural language processing tasks, for chatbots or machine translation ? Cover artificial intelligence-driven strategies to enable a robot to solve games or learn from an environment ? Generate synthetic data that looks real with generative modeling ? Become familiar with Lasagne and Keras, two frameworks built on top of Theano In Detail This book offers a complete overview of Deep Learning with Theano, a Python-based library that makes optimizing numerical expressions and deep learning models easy on CPU or GPU. The book provides some practical code examples that help the beginner understand how easy it is to build complex neural networks, while more experimented data scientists will appreciate the reach of the book, addressing supervised and unsupervised learning, generative models, reinforcement learning in the fields of image recognition, natural language processing, or game strategy. The book also discusses image recognition tasks that range from simple digit recognition, image classification, object localization, image segmentation, to image captioning. Natural language processing examples include text generation, chatbots, machine translation, and question answering. The last example deals with generating random data that looks real and solving games such as in the Open-AI gym. At the end, this book sums up the best -performing nets for each task. While early research results were based on deep stacks of neural layers, in particular, convolutional layers, the book presents the principles that improved the efficiency of these architectures, in order to help the reader build new custom nets. Style and approach It is an easy-to-follow example book that teaches you how to perform fast, efficient computations in Python. Starting with the very basics-NumPy, installing Theano, this book will take you to the smooth journey of implementing Theano for advanced computations for machine learning and deep learning.

Deep dive into the unified, distributed storage system in order to provide excellent performance About This Book ? Leverage Ceph's advanced features such as erasure coding, tiering, and Bluestore ? Solve large-scale problems with Ceph as a tool by understanding its strengths and weaknesses to develop the best solutions ? A practical guide that covers engaging use cases to help you use advanced features of Ceph effectively Who This Book Is For If you are a developer and an administrator who has deployed a Ceph cluster before and are curious about some of the most advanced features in order to improve performance then this book is for you What You Will Learn ?Know when and how to use some of Ceph's advanced new features ? Set up a test cluster with Ansible and some virtual machines using VirtualBox and Vagrant ?Develop novel solutions to massive problems with librados and shared object classes. ? Choose intelligent parameters for an erasure coded pool and set it up. ? Configure the Bluestore settings and see how they interact with different hardware configurations. ? Keep Ceph running through thick and thin with tuning, monitoring and disaster recovery advice. In Detail Mastering Ceph covers all that you need to know to use Ceph effectively. Starting with design goals and planning steps that should be undertaken to ensure successful deployments, you will be guided through to setting up and deploying the Ceph cluster, with the help of orchestration tools. Key areas of Ceph including Bluestore, Erasure coding and cache tiering will be covered with help of examples. Development of applications which use Librados and Distributed computations with shared object classes are also covered. A section on tuning will take you through the process of optimisizing both Ceph and its supporting infrastructure. Finally, you will learn to troubleshoot issues and handle various scenarios where Ceph is likely not to recover on its own. By the end of the book, you will be able to successfully deploy and operate a resilient high performance Ceph cluster. Style and approach A practical guide which has each chapter explaining the concept, sharing tips and tricks and a use case to implement the most powerful features of Ceph

Engineer naturally lean web pages and leverage the latest web platform features to dramatically boost page speed About This Book ? The first book for web developers that shows how to put AMP to work ? Improve your website's mobile experience and get more traffic ? Practical methods to achieve a step change in performance quickly and easily Who This Book Is For This book is for experienced web developers who are aware of the impact of slow-loading web pages on conversion rates and user engagement, and who are seeking to serve content to their end users in a rich and enticing way using the Accelerated Mobile Pages framework. You should be familiar with HTML5, CSS3, JavaScript, and JSON. What You Will Learn ? Build, validate, and deploy AMP pages ? Create interactive user notifications, navigation menus, accordions, contact pages with forms and maps ? Monetize your traffic with a variety of ad styles and providers ? Analyze your traffic by integrating analytics providers and tracking user-behavior along several dimensions ? Embed social media with amp-youtube, amp-instagram, amp-twitter, and amp-facebook ? Build e-commerce functionality including product pages and shopping carts ? Deliver rich media experiences using AMP custom elements ? Use advanced deployment techniques to extend functionality ? Install ServiceWorkers and build Progressive Web Apps for offline use In Detail Google introduced the Accelerated Mobile Pages (AMP) project to give mobile users lightning-fast response times when accessing web pages on mobile devices. AMP delivers great user experiences by providing a framework for optimizing web pages that otherwise would take much longer to load on a mobile platform. This book shows how to solve page performance issues using the mobile web technologies available today. You will learn how to build instant-loading web pages, and have them featured more prominently on Google searches. If you want your website to succeed on mobile, if you care about SEO, and if you want to stay competitive, then this book is for you! You will go on a mobile web development journey that demonstrates with concrete examples how to build lightning-fast pages that will keep your visitors on-site and happy. This journey begins by showing how to build a simple blog article-style web page using AMP. As new concepts are introduced this page is gradually refined until you will have the skills and confidence to build a variety of rich and interactive mobile web pages. These will include e-commerce product pages, interactive forms and menus, maps and commenting systems, and even Progressive Web Apps. Style and approach Get step-by-step instructions to build web pages of different types, gain expert tricks to brand your pages without bloating them, and see methods to embed advertising.

Recipes for emerging developers in R programming and data scientists to simplify their R programming capabilities About This Book ? Develop strategies to speed up your R code ? Tackle programming problems and explore both functional and object-oriented programming techniques ? Learn how to address the core problems of programming in R with the most popular R packages for common tasks Who This Book Is For This book is for developers who would like to enhance the R programming skills. Basic knowledge of R programming is assumed. What You Will Learn ? Install R and its various IDE for a given platform along with installing libraries from different repositories and version control ? Learn about basic data structures in R and how to work with them ? Write customized R functions and handle recursions, exceptions in R environments ? Create the data processing task as a step by step computer program and execute using dplyr ? Extract and process unstructured text data ? Interact with database management system to develop statistical applications ? Formulate and implement parallel processing in R In Detail R is a powerful tool for statistics, graphics, and statistical programming. It is used by tens of thousands of people daily to perform serious statistical analyses. It is a free, open source system whose implementation is the collective accomplishment of many intelligent, hard-working people. There are more than 2,000 available add-ons, and R is a serious rival to all commercial statistical packages. The objective of this book is to show how to work with different programming aspects of R. The emerging R developers and data science could have very good programming knowledge but might have limited understanding about R syntax and semantics. Our book will be a platform develop practical solution out of real world problem in scalable fashion and with very good understanding. You will work with various versions of R libraries that are essential for scalable data science solutions. You will learn to work with Input / Output issues when working with relatively larger dataset. At the end of this book readers will also learn how to work with databases from within R and also what and how meta programming helps in developing applications. Style and approach This book will be a companion for R programmer and emerging developers in R programming areas. This book will contain recipes related to advanced R programming which will enable users to solve complex problems efficiently.

Enhance the performance of your applications by using React and adding the Progressive web app capability to it About This Book ? Bring the best of mobile sites and native apps to your users with progressive web applications ? Create fast, reliable, and engaging PWAs with React and Firebase ? Create high-performance applications even with low connection speeds by leveraging modern web technologies Who This Book Is For This book is for Java* Developers who want to develop high performance Web User Interfaces. This book requires basic knowledge of HTML, CSS and JavaScript. What You Will Learn ? Set up Webpack configuration, as well as get the development server running ? Learn basic Firebase configuration and deployment ? Create routes, manage multiple components, and learn how to use React Router v4 to manage the flow of data ? Use React life cycle methods to load data ? Add a service worker to the app and learn how it works ? Use a service worker to send Push Notifications ? Configure Webpack to split up the JavaScript bundle and lazy load component files ? Learn how to use the web Cache API to use your app offline ? Audit PWAs with Google's Lighthouse tool In Detail For years, the speed and power of web apps has lagged behind native applications. Progressive Web Apps (PWAs) aim to solve this by bridging the gap between the web apps and native apps, delivering a host of exciting features. Simultaneously, React is fast becoming the go-to solution for building modern web UIs, combining ease of development with performance and capability. Using React alongside PWA technology will make it easy for you to build a fast, beautiful, and functional web app. After an introduction and brief overview of the goals of PWAs, the book moves on to setting up the application structure. From there, it covers the Webpack build process and the process of creating React components. You'll learn how to set up the backend database and authentication solution to communicate with Firebase and how to work with React Router. Next, you will create and configure your web app manifest, making your PWA installable on mobile devices. Then you'll get introduced to service workers and see how they work as we configure the app to send push notifications using Firebase Cloud Messaging. We'll also explore the App Shell pattern, a key concept in PWAs and look at its advantages regarding efficient performance. Finally, you'll learn how to add offline capabilities to the app with caching and confirm your progress by auditing your PWA with Lighthouse. Also, you'll discover helper libraries and shortcuts that will help you save time and understand the future of PWA development. Style and approach This is a step-by-step book, wherein, you will use the React framework to create a complete progressive web app.

Create ‘AAA’ quality game audio with new features and tools built for Unity About This Book ? Explore the basics of audio development in Unity to create spatial sound, mixing, effects, composition, adaptive audio and more. ? Leverage the Audio Mixer of Unity 5.x to create blockbuster sound and music for your game. ? Learn about developing professional audio for games with FMOD Studio and composing original music with Reaper. ? Build amazing audio synchronized graphic visualizations with Unity. ? Understand how real-time character lip syncing can be implemented. Who This Book Is For The ideal target audience for this book will be game developers, both Indie as well as semi pro. No prior knowledge of Unity and audio development is assumed, What You Will Learn ? Develop game audio and other audio effects with Unity ? Getting familiar with the new Audio Mixer introduced in Unity 5 ? Implement dynamic and adaptive audio using various tools and strategies ? Explore interesting ways to incorporate audio into a game with sound visualization ? Use 3rd party professional audio development tools like FMOD ? Compose original music and record vocals ? Understand and troubleshoot audio performance issues In Detail Game Audio is one of the key components in making a game successful and it is quite popular in the gaming industry. So if you are a game developer with an eye on capturing the gamer market then this book is the right solution for you. In this book, we will take you through a step by step journey which will teach you to implement original and engaging soundtracks and SFX with Unity 5.x. You will be firstly introduced to the basics of game audio and sound development in Unity. After going through the core topics of audio development: audio sources, spatial sound, mixing, effects, and more; you will then have the option of delving deeper into more advanced topics like dynamic and adaptive audio. You will also learn to develop dynamic and adaptive audio using the Unity Audio Mixer. Further, you will learn how professional third party tools like FMOD are used for audio development in Unity. You will then go through the creation of sound visualization techniques and creating your own original music using the simple yet powerful audio workstation Reaper. Lastly, you will go through tips, techniques and strategies to help you optimize game audio performance or troubleshoot issues. At the end of the book, you’ll have gained the skills to implement professional sound and music. Along with a good base knowledge audio and music principles you can apply across a range of other game development tools. Style and approach This book will have a step by step practical approach where downloadable free games will be given with the book and readers will be free to work with them.