Master the skills required to steer cross-platform applications from drawing board to app store(s) using Xamarin About This Book Develop your Xamarin development skills with this comprehensive guide on various patterns and features so you can create elegant and high-quality applications Create adaptive user interfaces on separate platforms without compromising the user experience and platform identity Implement application lifecycle management concepts to manage and finalize cross-platform projects and efficiently collaborate with others Who This Book Is For This book is ideal for those who want to take their entry–level Xamarin mobile development skills to the next level to become the go-to person within their organization. To fully understand the patterns and concepts described, you should possess a reasonable level of knowledge about the core elements of Xamarin and cross-platform application development with it. What You Will Learn Configure your environment for cross-platform projects with Xamarin Gain memory management skills to avoid memory leaks and premature code cycles while decreasing the memory print of your applications Employ asynchronous and parallel patterns to execute non-interactive and non-blocking processes Create and use SQLite databases for offline scenarios Integrate network resources with cross-platform applications Design and implement eye-catching and reusable UI components without compromising nativity in mobile applications Manage the application lifecycle of cross-platform development projects Distribute Xamarin applications through public or private channels In Detail The main goal of this book is to equip you with the required know-how to successfully analyze, develop, and manage Xamarin cross-platform projects using the most efficient, robust, and scalable implementation patterns. This book starts with general topics such as memory management, asynchronous programming, local storage, and networking, and later moves onto platform-specific features. During this transition, you will learn about key tools to leverage the patterns described, as well as advanced implementation strategies and features. The book also presents User Interface design and implementation concepts on Android and iOS platforms from a Xamarin and cross-platform perspective, with the goal to create a consistent but native UI experience. Finally, we show you the toolset for application lifecycle management to help you prepare the development pipeline to manage and see cross-platform projects through to public or private release. Style and approach This is a comprehensive guide on various Xamarin features and patterns. Each topic is explained and demonstrated with code samples, which are revised in each section in an iterative manner and analyzed with available diagnostic tools to demonstrate the benefits of different patterns.

Analyze data network like a professional by mastering Wireshark - From 0 to 1337 About This Book Master Wireshark and train it as your network sniffer Impress your peers and get yourself pronounced as a network doctor Understand Wireshark and its numerous features with the aid of this fast-paced book packed with numerous screenshots, and become a pro at resolving network anomalies Who This Book Is For Are you curious to know what’s going on in a networkDo you get frustrated when you are unable to detect the cause of problems in your networksThis is where the book comes into play. Mastering Wireshark is for developers or network enthusiasts who are interested in understanding the internal workings of networks and have prior knowledge of using Wireshark, but are not aware about all of its functionalities. What You Will Learn Install Wireshark and understand its GUI and all the functionalities of it Create and use different filters Analyze different layers of network protocols and know the amount of packets that flow through the network Decrypt encrypted wireless traffic Use Wireshark as a diagnostic tool and also for network security analysis to keep track of malware Troubleshoot all the network anomalies with help of Wireshark Resolve latencies and bottleneck issues in the network In Detail Wireshark is a popular and powerful tool used to analyze the amount of bits and bytes that are flowing through a network. Wireshark deals with the second to seventh layer of network protocols, and the analysis made is presented in a human readable form. Mastering Wireshark will help you raise your knowledge to an expert level. At the start of the book, you will be taught how to install Wireshark, and will be introduced to its interface so you understand all its functionalities. Moving forward, you will discover different ways to create and use capture and display filters. Halfway through the book, you’ll be mastering the features of Wireshark, analyzing different layers of the network protocol, looking for any anomalies. As you reach to the end of the book, you will be taught how to use Wireshark for network security analysis and configure it for troubleshooting purposes. Style and approach Every chapter in this book is explained to you in an easy way accompanied by real-life examples and screenshots of the interface, making it easy for you to become an expert at using Wireshark.

Build your own cloud based Database as a Service using OpenStack Trove About This Book Familiarize yourself with the concept of Database as a Service and make your existing system scalable and efficient with OpenStack Trove Minimize the administrative tasks and complexities of managing your cloud infrastructure This is a fast-paced guide to datastore management on the OpenStack platform using OpenStack Trove Who This Book Is For If you are a DBA / system administrator / architect, or a student who wants to build a Database as a Service based on OpenStack, this book is for you. You should have a basic knowledge of OpenStack components, RDBMS/NoSQL, IaaS, and cloud computing. What You Will Learn Get to grips with the basics of OpenStack and the prerequisites to install Trove Understand the expectations of DBaaS and how Trove can help you achieve them Set up a basic installation of DevStack (Development Stack) in a virtual box Install Trove and utilize its configuration groups to manage and tune databases Use Image builder to create guest images for Trove Utilize Trove to provision your first database instance Back up and restore your databases with the help of Trove In Detail OpenStack has become an extremely popular solution to build public and private clouds with. Database as a Service (DBaaS) enables the delivery of more agile database services at lower costs. Some other benefits of DBaaS are secure database deployments and compliance to standards and best practices. Trove is a DBaaS built on OpenStack and is becoming more popular by the day. Since Trove is one of the most recent projects of OpenStack, DBAs and system administrators can find it difficult to set up and run a DBaaS using OpenStack Trove. This book helps DBAs make that step. We start by introducing you to the concepts of DBaaS and how is it implemented using OpenStack Trove. Following this, we look at implementing OpenStack and deploying Trove. Moving on, you will learn to create guest images to be used with Trove. We then look at how to provision databases in self-service mode, and how to perform administration tasks such as backup and recovery, and fine-tuning databases. At the end of the book, we will examine some advanced features of Trove such as replication. Style and approach This fast-paced, step-by-step guide introduces you to DBaaS, OpenStack Trove, and its components, leading you through building your own Cloud-based DBaaS. Using the DevStack deployment method, you will spend less time on installing OpenStack so you can devote more time to learning how to provision and manage databases in a DBaaS environment.

Unleash the full potential of the Flask web framework by creating simple yet powerful web applications About This Book The most up-to-date book on Flask on the market Create your own world-class applications and master the art of Flask by unravelling its enigma through this journey This step-by-step tutorial is packed with examples on blending different technologies with Flask to get you up and running Who This Book Is For Have you looked at PHP and hated the clunky bloated syntaxOr looked at .Net and wished it was more open and flexibleMaybe you’ve tried your hand at GUI libraries in Python and found them hard to useIf your answer to any one of these questions is a yes, then this is just the book for you. It is also intended for people who know the basics of Python and want to learn how to use it to build powerful solutions with a web front-end. What You Will Learn Build three web applications from the ground up using the powerful Python micro framework, Flask. Dynamically display data to your viewers, based on their requests Store user and static data in SQL and NoSQL databases and use this data to power your web applications Create a good user experience by combining HTML, CSS, and JavaScript Harness the convenience of freely available APIs, including OpenWeatherMap, Open Exchange Rates, and bitly Extend your applications to build advanced functionality, such as a user account control system using Flask-Login Learn about web application security and defend against common attacks, such as SQL injection and XSS In Detail This book will take you on a journey from learning about web development using Flask to building fully functional web applications. In the first major project, we develop a dynamic Headlines application that displays the latest news headlines along with up-to-date currency and weather information. In project two, we build a Crime Map application that is backed by a MySQL database, allowing users to submit information on and the location of crimes in order to plot danger zones and other crime trends within an area. In the final project, we combine Flask with more modern technologies, such as Twitter's Bootstrap and the NoSQL database MongoDB, to create a Waiter Caller application that allows restaurant patrons to easily call a waiter to their table. This pragmatic tutorial will keep you engaged as you learn the crux of Flask by working on challenging real-world applications. Style and approach This book will provide you with rich, practical experience of Flask. Every technology, that is employed along with Flask is comprehensively introduced, while the book focusses on developing web applications. Pointers to educational material are always given if you want to gain in-depth knowledge of the various technologies used.

对莫奈而言，艺术创作始终是一种痛苦的挣扎。较之同时代人，他更深沉地痴迷于表达情感，更强烈地渴望传达超越大自然的光线效果。用他自己的话来形容：“技巧来来去去……艺术始终如一——它是大自然的转译，需要与意志力同等的敏感性。我和太阳搏斗……（我）应该用金子和宝石作画。”

对莫奈而言，艺术创作始终是一种痛苦的挣扎。较之同时代人，他更深沉地痴迷于表达情感，更强烈地渴望传达超越大自然的光线效果。用他自己的话来形容：“技巧来来去去……艺术始终如一——它是大自然的转译，需要与意志力同等的敏感性。我和太阳搏斗……（我）应该用金子和宝石作画。”

二十世纪是艺术史上的革命岁月。在其短短的几年中，现代主义喷薄而出，打破了几个世纪以来的古典形象艺术传统，创造出了崭新的作品。这本令人震撼地全面地展现了艺术的现代时代的作品，勾勒了二十世纪几场关键的艺术运动，从野兽派到流行艺术，详细特写了这一时代中负盛名的一些作品，也刊登了艺术批评家和艺术史学家的那些富有启发性的文章。翻开此书犹如打开了一扇进入现代艺术大家心灵世界的大门，生动而丰富，对于任何一个现代艺术粉丝来说，二十世纪的艺术都是不可或缺之物。

这本书讨论了西伯利亚的人民和传统，作为一本艺术、社会和历史的读物，将吸引很多读者。近，在圣彼得堡民族博物馆隐藏的密室中发现的材料具有轰动一时的重要性。在这本书中，这些材料的内容次出版面市，并经过了重新解释。作者才华横溢地表达了他们对这一反抗艰难环境和政治统治的民族热情和崇拜。

　　書中講述幼兒日常生活中的小故事，貼近孩子生活，透過生動形象的小故事，教導孩子適當的行為處事方法，從小建立良好品格。 　　書後設置「互動小遊戲」、「成長小貼士」小欄目，加強孩子對書中故事相關禮貌常識的認識，同時也給父母一些實用的指導，幫助孩子培養良好的品格。 　　書後還設有「齊來評評分」，列舉故事中可以的禮儀小常識，讓家長和孩子參考對照，增進親子間的互動。 　　《飯桌上》小明跟媽媽一起到同學美美家做客，美美的媽媽燒了好吃的小菜招待他們。吃飯時，小明知道了要細嚼慢嚥，還不能發出聲音。看到了喜歡的雞腿，小明會怎麼做呢?

白蘿蔔可解毒、清積滯、改善吃過量肉類引致的食慾不振。

Pairing hilarious poetry with the stunning collage work for which he is famous, Michael Roberts takes on the fashion world letter by letter and in the way only a true insider can in Fashion Victims. This gorgeous, stylish book illustrated and written by the Vanity Fair fashion director, influential stylist, and artist is a witty send-up of the fashion world that will delight style lovers, popular culture aficionados, and art lovers alike with its wit, acute observations, truth, and poignancy. Impeccably designed by Roberts himself, Fashion Victims is a perfect tongue-in-chic gift and a timeless collectible.

Stepping Out Within by Robert W. Olsen has de*ive copy which is not yet available from the Publisher.

The daughter of an over-protective father, Millicent Anderson has never been permitted an ounce of freedomher father has kept her completely sheltered from boys, and even quashed her dream of being a teacher. But when a family trip leads her to tiny Moose Falls, Montana, and she catches sight of bad boy Johnny Pickett, her heart flips -- and before she knows it, she's breaking all the rules to be near him. In Johnny's arms, Millie discovers passion, and Millie is just what Johnny needs to heal after war. When her father tries to separate them by dangling her old dreams before her, however, Millie's forced to make a choice: Will she choose the love of her family and the opportunity to build a career -- or will she leave everything behind for the hot guy she's fallen for?

Branded a traitor and imprisoned for refusing to fight for the Confederacy, Clayton Holland returns home to Cedar Grove, only to be spurned by the townspeople, except for vengeful Meg Warner, who finds her hatred and grief transformed by love.

The author of the bestselling Reality Therapy offers daring recommendations to "shake up educators" (Alexander Bassin).

This thought-provoking guide takes a candid look at the moral issues we face in our daily lives. Using the Ten Commandments as a starting point, the authors bring fresh analysis to such problems as the morality of war in a nuclear age, equitable tax structures, abortion, marital fidelity, capital punishment, care of aging parents, euthanasia, homosexuality, and other contemporary concerns. Beyond Moralism offers solid guidance that is consistent with the Word of God as heard throughout the ages.

Building upon the concepts introduced in Good to Great, Jim Collins answers the most commonly asked questions raised by his readers in the social sectors. Using information gathered from interviews with over 100 social sector leaders, Jim Collins shows that his "Level 5 Leader" and other good-to-great principles can help social sector organizations make the leap to greatness.

From New York Times bestselling author Stephanie Laurens comes her RITA-Award winning tale that shows how one night can change everything . . . forever.Robert "Rogue" Gerrard's reputation paints him as one of the ton's most notorious rakes. But once, long ago, he fell in love . . . and he's never forgotten the scintillating emotion he, then too young, turned his back on. But one stormy night, he discovers himself stranded at an inn with his childhood sweetheart, Lydia Makepeace, who has no business being there alone.Lydia, meanwhile, is horrified to find the one man in England guaranteed to protect her standing between her and the scandalous letter she must, simply must, retrieve.

In 1975 Annie Dillard took up residence on an island in Puget Sound in a wooded room furnished with "one enormous window, one cat, one spider and one person." For the next two years she asked herself questions about time, reality, sacrifice death, and the will of God. In Holy the Firm she writes about a moth consumed in a candle flame, about a seven-year-old girl burned in an airplane accident, about a baptism on a cold beach. But behind the moving curtain of what she calls "the hard things -- rock mountain and salt sea," she sees, sometimes far off and sometimes as close by as a veil or air, the power play of holy fire.This is a profound book about the natural world -- both its beauty and its cruelty -- the Pulitzer Prize-winning Dillard knows so well.

Dan Ariely's three New York Times bestselling books on his groundbreaking behavioral economics research, Predictably Irrational, The Upside of Irrationality, and The (Honest) Truth About Dishonesty, are now available for the first time in a single volume.

The only OFFICIAL Narnia cookbook! Explore over 60 illustrated recipes inspired by the classic fantasy series The Chronicles of Narnia. Illustrations in this ebook appear in vibrant full color on a full-color ebook device, and in rich black-and-white on all other devices.From the White Witch's spellbinding Turkish Delight to the centaurs' mouthwatering oatcakes and the Dryads' favorite gooseberry fools, each recipe in The OFFICIAL Narnia Cookbook is a culinary tribute to the overwhelming influence The Chronicles of Narnia has had on generations of readers. With anecdotes by C. S. Lewis's stepson, Douglas Gresham, and illustrations by the original artist, Pauline Baynes, this is a delicious way to expand your journey into Narnia whether you are a fan of the books or like to cook and read about food.Enjoy these treats with any or all of the seven books from The Chronicles of Narnia The Magician's Nephew; The Lion, the Witch and the Wardrobe; The Horse and His Boy; Prince Caspian; The Voyage of the Dawn Treader; The Silver Chair; and The Last Battle.