Identify, capture and resolve common issues faced by Red Hat Enterprise Linux administrators using best practices and advanced troubleshooting techniquesAbout This BookDevelop a strong understanding of the base tools available within Red Hat Enterprise Linux (RHEL) and how to utilize these tools to troubleshoot and resolve real-world issuesGain hidden tips and techniques to help you quickly detect the reason for poor network/storage performanceTroubleshoot your RHEL to isolate problems using this example-oriented guide full of real-world solutions Who This Book Is For If you have a basic knowledge of Linux from administration or consultant experience and wish to add to your Red Hat Enterprise Linux troubleshooting skills, then this book is ideal for you. The ability to navigate and use basic Linux commands is expected.What You Will LearnIdentify issues that need rapid resolution against long term root cause analysisDiscover commands for testing network connectivity such as telnet, netstat, ping, ip and curlSpot performance issues with commands such as top, ps, free, iostat, and vmstatUse tcpdump for traffic analysisRepair a degraded file system and rebuild a software raidIdentify and troubleshoot hardware issues using dmesgTroubleshoot custom applications with strace and knowledge of Linux resource limitations In Detail Red Hat Enterprise Linux is an operating system that allows you to modernize your infrastructure, boost efficiency through virtualization, and finally prepare your data center for an open, hybrid cloud IT architecture. It provides the stability to take on today's challenges and the flexibility to adapt to tomorrow's demands. In this book, you begin with simple troubleshooting best practices and get an overview of the Linux commands used for troubleshooting. The book will cover the troubleshooting methods for web applications and services such as Apache and MySQL. Then, you will learn to identify system performance bottlenecks and troubleshoot network issues; all while learning about vital troubleshooting steps such as understanding the problem statement, establishing a hypothesis, and understanding trial, error, and documentation. Next, the book will show you how to capture and analyze network traffic, use advanced system troubleshooting tools such as strace, tcpdump & dmesg, and discover common issues with system defaults. Finally, the book will take you through a detailed root cause analysis of an unexpected reboot where you will learn to recover a downed system.Style and approach This is an easy-to-follow guide packed with examples of real-world core Linux concepts. All the topics are presented in detail while you’re performing the actual troubleshooting steps.

Master the art of building modern desktop applications on Windows About This Book Learn how to use the MVVM software architectural pattern and see the benefits of using it with Windows Presentation Fountain (WPF) Explore various ways to enhance efficiency through performance tuning and UI automation Obtain a deep understanding of data validation and understand various methods that suit different situations Who This Book Is For This book is for working developers with a moderate level of knowledge about Windows Presentation Foundation. It will also be of special interest to ambitious individuals who want to know more about application architecture. It is also suitable for those who just want to learn how to build visually stunning user interfaces. What You Will Learn Use MVVM to improve workflow Create visually stunning user interfaces Perform data binds proficiently Implement advanced data validation Locate and resolve errors quickly Master practical animations Improve your applications’ performance In Detail Windows Presentation Foundation is rich in possibilities when it comes to delivering an excellent user experience. This book will show you how to build professional-grade applications that look great and work smoothly. We start by providing you with a foundation of knowledge to improve your workflow – this includes teaching you how to build the base layer of the application, which will support all that comes after it. We’ll also cover the useful details of data binding. Next, we cover the user interface and show you how to get the most out of the built-in and custom WPF controls. The final section of the book demonstrates ways to polish your applications, from adding practical animations and data validation to improving application performance. The book ends with a tutorial on how to deploy your applications and outlines potential ways to apply your new-found knowledge so you can put it to use right away. The book also covers 2D and 3D graphics, UI automation, and performance tuning. Style and approach Filled with intriguing and practical examples, this book delineates concepts that will help you take your WPF skills to the next level.

Explore machine learning concepts using the latest numerical computing library — TensorFlow — with the help of this comprehensive cookbook About This Book Your quick guide to implementing TensorFlow in your day-to-day machine learning activities Learn advanced techniques that bring more accuracy and speed to machine learning Upgrade your knowledge to the second generation of machine learning with this guide on TensorFlow Who This Book Is For This book is ideal for data scientists who are familiar with C++ or Python and perform machine learning activities on a day-to-day basis. Intermediate and advanced machine learning implementers who need a quick guide they can easily navigate will find it useful. What You Will Learn Become familiar with the basics of the TensorFlow machine learning library Get to know Linear Regression techniques with TensorFlow Learn SVMs with hands-on recipes Implement neural networks and improve predictions Apply NLP and sentiment analysis to your data Master CNN and RNN through practical recipes Take TensorFlow into production In Detail TensorFlow is an open source software library for Machine Intelligence. The independent recipes in this book will teach you how to use TensorFlow for complex data computations and will let you dig deeper and gain more insights into your data than ever before. You’ll work through recipes on training models, model evaluation, sentiment analysis, regression analysis, clustering analysis, artificial neural networks, and deep learning – each using Google’s machine learning library TensorFlow. This guide starts with the fundamentals of the TensorFlow library which includes variables, matrices, and various data sources. Moving ahead, you will get hands-on experience with Linear Regression techniques with TensorFlow. The next chapters cover important high-level concepts such as neural networks, CNN, RNN, and NLP. Once you are familiar and comfortable with the TensorFlow ecosystem, the last chapter will show you how to take it to production. Style and approach This book takes a recipe-based approach where every topic is explicated with the help of a real-world example.

Leverage the power of Xamarin to create stunning cross-platform and native apps About This Book Helps you get a clear practical understanding of creating professional-grade apps with Xamarin Covers Xamarin.Forms, Xamarin Android, and Xamarin iOS If you want to transform yourself from an amateur mobile developer into a professional app developer across multiple platforms, then this is the ideal book for you Who This Book Is For If you are a mobile developer looking to create interesting and fully featured apps for different platforms, then this book is the ideal solution for you. A basic knowledge of Xamarin and C# programming is assumed What You Will Learn Discover eight different ways to create your own Xamarin applications Improve app performance by using SQLite for data-intensive applications Set up a simple web service to feed JSON data into mobile applications Store files locally with Xamarin.Forms using dependency services Use Xamarin extension libraries to create effective applications with less coding In Detail Do you want to create powerful, efficient, and independent apps from scratch that will leverage the Xamarin framework and code with C#Well, look no further; you’ve come to the right place! This is a learn-as-you-build practical guide to building eight full-fledged applications using Xamarin.Forms, Xamarin Android, and Xamarin iOS. Each chapter includes a project, takes you through the process of building applications (such as a gallery Application, a text-to-speech service app, a GPS locator app, and a stock market app), and will show you how to deploy the application’s source code to a Google Cloud Source Repository. Other practical projects include a chat and a media-editing app, as well as other examples fit to adorn any developer’s utility belt. In the course of building applications, this book will teach you how to design and prototype professional-grade applications implementing performance and security considerations. Style and approach A project-based approach that will solve all your needs when it comes to creating native Android, iOS, and cross-platform apps efficiently and effectively.

Go beyond the basics and unleash the full power of QGIS with practical, step-by-step examples About This Book This book is your one-stop solution to all of your GIS needs using the open source QGIS Master QGIS by learning about database integration, geoprocessing tools, Python *s, advanced cartography, and custom plugins This example-rich, practical guide will help you create sophisticated analyses and maps Who This Book Is For If you are a GIS professional, a consultant, a student, or perhaps a fast learner who wants to go beyond the basics of QGIS, then this book is for you. It will prepare you to realize the full potential of QGIS. What You Will Learn Create and manage a spatial database Get to know advanced techniques to style GIS data Prepare both vector and raster data for processing Add heat maps, live layer effects, and labels to your maps Master LAStools and GRASS integration with the Processing Toolbox Edit and repair topological data errors Automate workflows with batch processing and the QGIS Graphical Modeler Integrate Python *ing into your data processing workflows Develop your own QGIS plugin In Detail QGIS is an open source solution to GIS. It is widely used by GIS professionals all over the world. It is the leading alternative to the proprietary GIS software. Although QGIS is described as intuitive, it is also by default complex. Knowing which tools to use and how to apply them is essential to producing valuable deliverables on time. Starting with a refresher on the QGIS basics, this book will take you all the way through to creating your first custom QGIS plugin. From the refresher, we will recap how to create, populate, and manage a spatial database. You’ll also walk through styling GIS data, from creating custom symbols and color ramps to using blending modes. In the next section, you will discover how to prepare vector, heat maps, and create live layer effects, labeling, and raster data for processing. You’ll also discover advanced data creation and editing techniques. The last third of the book covers the more technical aspects of QGIS such as using LAStools and GRASS GIS’s integration with the Processing Toolbox, how to automate workflows with batch processing, and how to create graphical models. Finally, you will see how to create and run Python data processing *s and write your own QGIS plugin with pyqgis. By the end of the book, you will understand how to work with all the aspects of QGIS, and will be ready to use it for any type of GIS work. Style and approach This step-by-step comprehensive guide will let you dig your teeth into working with spatial databases, creating your own QGIS plugins, and creating your own custom graphical models.

Over 70 practical recipes to gain operational data intelligence with Splunk Enterprise About This Book This is the most up-to-date book on Splunk 6.3 and teaches you how to tackle real-world operational intelligence scenarios efficiently Get business insights using machine data using this easy-to-follow guide Search, monitor, and analyze your operational data skillfully using this recipe-based, practical guide Who This Book Is For This book is intended for users of all levels who are looking to leverage the Splunk Enterprise platform as a valuable operational intelligence tool. The recipes provided in this book will appeal to individuals from all facets of business, IT, security, product, marketing, and many more! Also, existing users of Splunk who want to upgrade and get up and running with Splunk 6.3 will find this book invaluable. What You Will Learn Use Splunk to gather, analyze, and report on data Create dashboards and visualizations that make data meaningful Build an operational intelligence application with extensive features and functionality Enrich operational data with lookups and workflows Model and accelerate data and perform pivot-based reporting Build real-time, *ed, and other intelligence-driven alerts Summarize data for longer term trending, reporting, and analysis Integrate advanced JavaScript charts and leverage Splunk's API In Detail Splunk makes it easy for you to take control of your data, and with Splunk Operational Cookbook, you can be confident that you are taking advantage of the Big Data revolution and driving your business with the cutting edge of operational intelligence and business analytics. With more than 70 recipes that demonstrate all of Splunk’s features, not only will you find quick solutions to common problems, but you’ll also learn a wide range of strategies and uncover new ideas that will make you rethink what operational intelligence means to you and your organization. You’ll discover recipes on data processing, searching and reporting, dashboards, and visualizations to make data shareable, communicable, and most importantly meaningful. You’ll also find step-by-step demonstrations that walk you through building an operational intelligence application containing vital features essential to understanding data and to help you successfully integrate a data-driven way of thinking in your organization. Throughout the book, you’ll dive deeper into Splunk, explore data models and pivots to extend your intelligence capabilities, and perform advanced searching to explore your data in even more sophisticated ways. Splunk is changing the business landscape, so make sure you’re taking advantage of it. Style and approach Splunk is an excellent platform that allows you to make sense of machine data with ease. The adoption of Splunk has been huge and everyone who has gone beyond installing Splunk wants to know how to make most of it. This book will not only teach you how to use Splunk in real-world scenarios to get business insights, but will also get existing Splunk users up to date with the latest Splunk 6.3 release.

Create modular scalable enterprise-grade applications with JBoss Enterprise Application Platform 7 About This Book Leverage the power of JBoss EAP 7 along with Java EE 7 to create professional enterprise grade applications. Get you applications cloud ready and make them highly scalable using this advanced guide. Become a pro Java Developer and move ahead of the crowd with this advanced practical guide. Who This Book Is For The ideal target audience for this book is Java System Administrators who already have some experience with JBoss EAP and who now want explore in depth creating Enterprise grade apps with the latest JBoss EAP version. What You Will Learn Configure services using the Command Line Interface Deliver fault tolerant server configurations Harden the application server with advanced techniques Expand the application server's horizon with tools such as like Docker/OpenShift Create enterprise ready configurations using clustering techniques. Deliver advanced security solutions and learn how to troubleshoot common network/performance issues In Detail The JBoss Enterprise Application Platform (EAP) has been one of the most popular tools for Java developers to create modular, cloud-ready, and modern applications. It has achieved a reputation for architectural excellence and technical savvy, making it a solid and efficient environment for delivering your applications. The book will first introduce application server configuration and the management instruments that can be used to control the application server. Next, the focus will shift to enterprise solutions such as clustering, load balancing, and data caching; this will be the core of the book. We will also discuss services provided by the application server, such as database connectivity and logging. We focus on real-world example configurations and how to avoid common mistakes. Finally, we will implement the knowledge gained so far in terms of Docker containers and cloud availability using RedHat's OpenShift. Style and approach If you are a Java developer who wants to level-up to modern day Java web development with the latest Java EE 7 and JBoss EAP 7, this book is the ideal solution for you. It addresses (in a clear and simple way) proof-of-concept scenarios such as clustering and cloud and container configurations, and explains how to solve common issues.

Utilize R to uncover hidden patterns in your Big Data About This Book Perform computational analyses on Big Data to generate meaningful results Get a practical knowledge of R programming language while working on Big Data platforms like Hadoop, Spark, H2O and SQL/NoSQL databases, Explore fast, streaming, and scalable data analysis with the most cutting-edge technologies in the market Who This Book Is For This book is intended for Data Analysts, Scientists, Data Engineers, Statisticians, Researchers, who want to integrate R with their current or future Big Data workflows. It is assumed that readers have some experience in data analysis and understanding of data management and algorithmic processing of large quantities of data, however they may lack specific skills related to R. What You Will Learn Learn about current state of Big Data processing using R programming language and its powerful statistical capabilities Deploy Big Data analytics platforms with selected Big Data tools supported by R in a cost-effective and time-saving manner Apply the R language to real-world Big Data problems on a multi-node Hadoop cluster, e.g. electricity consumption across various socio-demographic indicators and bike share scheme usage Explore the compatibility of R with Hadoop, Spark, SQL and NoSQL databases, and H2O platform In Detail Big Data analytics is the process of examining large and complex data sets that often exceed the computational capabilities. R is a leading programming language of data science, consisting of powerful functions to tackle all problems related to Big Data processing. The book will begin with a brief introduction to the Big Data world and its current industry standards. With introduction to the R language and presenting its development, structure, applications in real world, and its shortcomings. Book will progress towards revision of major R functions for data management and transformations. Readers will be introduce to Cloud based Big Data solutions (e.g. Amazon EC2 instances and Amazon RDS, Microsoft Azure and its HDInsight clusters) and also provide guidance on R connectivity with relational and non-relational databases such as MongoDB and HBase etc. It will further expand to include Big Data tools such as Apache Hadoop ecosystem, HDFS and MapReduce frameworks. Also other R compatible tools such as Apache Spark, its machine learning library Spark MLlib, as well as H2O. Style and approach This book will serve as a practical guide to tackling Big Data problems using R programming language and its statistical environment. Each section of the book will present you with concise and easy-to-follow steps on how to process, transform and analyse large data sets.

Discover how to build impressive 3D graphics with the next-generation graphics API—Vulkan About This Book Get started with the Vulkan API and its programming techniques using the easy-to-follow examples to create stunning 3D graphics Understand memory management in Vulkan and implement image and buffer resources Get hands-on with the drawing process and synchronization, and render a 3D graphics scene with the Vulkan graphics pipeline Who This Book Is For This book is ideal for graphic programmers who want to get up and running with Vulkan. It’s also great for programmers who have experience with OpenGL and other graphic APIs who want to take advantage of next generation APIs. A good knowledge of C/C++ is expected. What You Will Learn Learn fundamentals of Vulkan programing model to harness the power of modern GPU devices. Implement device, command buffer and queues to get connected with the physical hardware. Explore various validation layers and learn how to use it for debugging Vulkan application. Get a grip on memory management to control host and device memory operations. Understand and implement buffer and image resource types in Vulkan. Define drawing operations in the Render pass and implement graphics pipeline. Manage GLSL shader using SPIR-V and update the shader resources with de*or sets and push constants. Learn the drawing process, manage resources with synchronization objects and render 3D scene output on screen with Swapchain. Bring realism to your rendered 3D scene with textures, and implement linear and optimal textures In Detail Vulkan, the next generation graphics and compute API, is the latest offering by Khronos. This API is the successor of OpenGL and unlike OpenGL, it offers great flexibility and high performance capabilities to control modern GPU devices. With this book, you'll get great insights into the workings of Vulkan and how you can make stunning graphics run with minimum hardware requirements. We begin with a brief introduction to the Vulkan system and show you its distinct features with the successor to the OpenGL API. First, you will see how to establish a connection with hardware devices to query the available queues, memory types, and capabilities offered. Vulkan is verbose, so before diving deep into programing, you’ll get to grips with debugging techniques so even first-timers can overcome error traps using Vulkan’s layer and extension features. You’ll get a grip on command buffers and acquire the knowledge to record various operation commands into command buffer and submit it to a proper queue for GPU processing. We’ll take a detailed look at memory management and demonstrate the use of buffer and image resources to create drawing textures and image views for the presentation engine and vertex buffers to store geometry information. You'll get a brief overview of SPIR-V, the new way to manage shaders, and you'll define the drawing operations as a single unit of work in the Render pass with the help of attachments and subpasses. You'll also create frame buffers and build a solid graphics pipeline, as well as making use of the synchronizing mechanism to manage GPU and CPU hand-shaking. By the end, you’ll know everything you need to know to get your hands dirty with the coolest Graphics API on the block. Style and approach This book takes a practical approach to guide you through the Vulkan API, and you will get to build an application throughout the course of the book. Since you are expected to be familiar with C/C++, there is not much hand-holding throughout the course of the book.

Presentación Este libro ofrece cuarenta y ocho juegos y más de cincuenta variantes para la clase de espa?ol como lengua segunda o extranjera. Todos los juegos han sido testeados en grupos de distintos niveles de lengua, edades, lenguas maternas y nacionalidades, siempre con resultados exitosos. Los juegos están ordenados en fichas según los objetivos que persiguen. Cada ficha comienza mencionando estos objetivos (con especial foco en los de carácter lingüístico) y, de requerirlo, los materiales necesarios para llevar a cabo el juego (una foto, una bolsa…). A continuación?se explicita el procedimiento, el cual en muchos casos se acompa?a de variantes en nivel de complejidad o en tema. Desde luego, estas variantes no son exhaustivas: el docente podrá inventar muchas otras según los contenidos que desee practicar, el nivel de su grupo y su propia inventiva. Es menester aclarar que, en su mayoría, y según el modo en que el docente lo oriente, cada?uno de estos juegos puede servir para trabajar muy diversos puntos gramaticales o léxicos, si?bien algunos resultan más aptos para contenidos específicos. Acerca de la selección Desde el punto de vista lúdico, los juegos incluidos presentan gran variedad tipológica: juegos?de habilidad, de desafío personal, de competición, de colaboración, de simulación, de asociación, adivinanzas, juegos de mesa y otros que implican movimiento. En lo que hace a la lengua en sí, podemos distinguir entre los que se centran en el significado de las palabras y los que se aplican a estructuras gramaticales y funciones comunicativas. Algunos juegos requieren el manejo de cierta información sociocultural, histórica o geográfica. Están también los que se centran en la interacción oral o escrita y los que requieren de habilidades tales como inferir significado, parafrasear, encontrar sinónimos o antónimos, deducir reglas, construir familias de palabras, explorar sintaxis y otras. ___ VISITA NUESTRA P?GINA WEB?WWW.PAROLASLANGUAGES.COM

Recommended for viewing on colour devices. An essential guide to exploring Britain by train, Railway Day Trips is ideal for anyone planning or looking for inspiration for a rail journey. From bestselling railway author Julian Holland

T?r?csik Mari: Bérczes László beszélget?k?nyve

“人是自己命运的主宰。”——观念，推动历史改辙18世纪，是启蒙的世纪。从爱丁堡到那不勒斯，从巴黎到柏林，从波士顿到费城，“自由”是这个时代的纲领，它让人倍感欣喜：光荣的独立前景和大展宏图的无限机会向所有人敞了。人类有史以来首次将自信建立在现实基础上，各个阶层的人们自信满满，始相信理性和行动的力量。启蒙哲人们着手设计了各种改造秩序的方案——社会、伦理、科学、艺术、政治、教育……就此，挥别古老的过去，今日世界在他们手中诞生。历史如何在自由观念的冲下改头换面？个人如何在启蒙精神的照耀下主宰命运？现代史学巨擘彼得·盖伊，为我们娓娓道来。

本书为史界鬼才李硕的勇气之作，是一场思想之旅，更是一部学术自传，视野广阔，兼顾政治史、社会史、法律史、思想史诸多领域：从周幽王的上古世界，到林则徐的晚清帝国边疆；从《真诰》中的“仙人”和修道者，到孝文帝时代的悲剧官僚；从一个个隐尘烟的饮食男女，到法律史中危险而愉悦的禁忌之爱；从拉铁摩尔的北部行旅，到霍布斯政治学说吊诡的成因；从蠡县大食堂，再到荒野之中河西走廊尽头的汉代城郭遗址……从史实出发，12段学术游荡，史料爬疏与故事构建之外，更洞察人心，努力还原时间深处鲜为人知的幽微与真相。

“人是自己命运的主宰。”——观念，推动历史改辙18世纪，是启蒙的世纪。从爱丁堡到那不勒斯，从巴黎到柏林，从波士顿到费城，“自由”是这个时代的纲领，它让人倍感欣喜：光荣的独立前景和大展宏图的无限机会向所有人敞了。人类有史以来首次将自信建立在现实基础上，各个阶层的人们自信满满，始相信理性和行动的力量。启蒙哲人们着手设计了各种改造秩序的方案——社会、伦理、科学、艺术、政治、教育……就此，挥别古老的过去，今日世界在他们手中诞生。历史如何在自由观念的冲下改头换面？个人如何在启蒙精神的照耀下主宰命运？现代史学巨擘彼得·盖伊，为我们娓娓道来。

在无神的社会里，正义是人与人之间关系的一种性质——它如此重要，以致它在很大程度上影响甚至决定每一个人或绝大多 数人是否感觉幸福。我这部讲义，不仅是“新政治经济学”讲义，而且是关于中国人怎样可以生活得更美好的讲义。也因此，这部讲义是我关于“中国社会基本问题”的长期探讨的近一次总结。——汪丁丁 《新政治经济学讲义:在中国思索正义、效率与公共选择》以汪丁丁教授于北京大学开设“新政治经济学”课程的讲义为基础，汇集多年来从经济学视角出发求解中国社会基本问题及制度改革前景的思想成果。在本书中，作者首先界定了新政治经济学及其基本问题，进而深入探讨其核心议题——正义，具体包括正义理论中特殊主义与普遍主义的纠缠、正义观念的发展史与社会实践，以及社会正义与公共理性、政治民主的关系等主题，并重点关注艾智仁、奈特与布坎南等经济学家的作品和贡献。同时，作者以跨学科的视域、思想史的方法，梳理了“正义”的实践智慧，终将全部的理论探讨应用于对中国社会现状的剖析与未来变革方向的探索之中。

  本书由老庄哲学领域的新生代学者秦复观毕20余年之功全新校注解析。 全本：正本清源。以帛书版为底本全新勘校。 全译：随文白话文直译，生僻字随文注音，与传世版本异文的对比，以及由此引发的不同解读。 全解：多维度逐句解析文意，及其内在逻辑，保证普通人完全读懂《道德经》。 作者整理定稿的帛书版，与传世版重大差异有140处之多，这影响了我们对老子思想的正确理解，而基于正本的解读，也让以往道德经中多个自相矛盾之处在逻辑上形成了完美自洽。 这不仅是一部原貌道德经，也是一部可以轻松读懂的道德经。

本书内容出自汪丁丁教授近年为北京大学国家发展研究院设的EMBA课程。作者认为，要理解任何中国现象，首先要将中国现象置于三重转型期的理解框架之内，关注转型期社会的伦理行为，其中涌现的问题，激发了作者在几十年研究和思考的过程中形成了一些“原理”。本书共分四讲，先后探讨了稳态社会的伦理学基本问题、转型期社会的伦理学基本问题，以及转型期中国社会的伦理学基本问题。伦理学，广义的，蕞大适用范围的伦理学，用一句话概括，是关于社会生活的智慧。中国社会处于三重转型期，于是才有中国当代独有的人生问题与企业问题。短期行为不能产生稳定的行为预期，于是也没有正常的企业文化。这是转型期中国社会的基本状况，人人理性预期人人行为短期化。不如此预期的人，反而不理性。我们该如何求解社会生活的智慧？该如何达致人与人之间深层的情感交流？

《二战史诗三部曲》包括《*长的一天：1944诺曼底登陆的英勇与牺牲》《遥远的桥：1944市场花园行动的雄心与遗恨》《*后一役：1945纳粹帝国的末日与悲鸣》，是著名历史作家、战地记者科尼利厄斯·瑞恩在亲历二战后历时近30年创作完成的史诗级巨著，通过二战期间的三场决定性战役，生动再现了那些决定世界命运的伟大历史时刻。 作者亲自访问5000余人，并且翻查供词、访问、信件、日记、作战日志以及各级作战史，方才撰写出至今依然令人不可忽略的战史经典之作，并且改变了新闻写作的既定模式。即便后世许多作家撰写更多的相关作品，但考李留斯雷恩所奠定的战争历史非虚构写作的典范，使得《二战史诗三部曲》至今依然是第二次世界大战*经典、无人能超越的畅销著作。

　　为什么要有公司和企业？企业究竟是如何运作的？中国的企业和公司究竟出了什么问题？ 　　经济学家张维迎有关公司治理的核心著作，为中国提供一个“企业家为中心的公司治理模型”。只有解决产权制度缺陷，才能突破增长瓶颈。 ?? 　　公司治理结构是所有企业参与人及其利益相关者之间的关系。 　　公司治理结构的核心问题是如何在不同的企业参与人之间分配企业的剩余索取权和控制权。 　　公司治理结构的有效性主要取决于四个方面的制度安排；企业所有权安排，国家法律制度，市场竞争和信誉机制，经理人的薪酬制度及企业内部的晋升制度。

笔者在湘雅完成医学本科教育，并于Monash Uni获得硕士学位。在OET教学中有三大优势： 1 曾作为临床医生及医考培训讲师，具备扎实的医学根基，深刻理解医护工作的实际需求； 2 曾在北京*语言培训机构任教雅思、托福，精通海外考试的教学方法； 3 近二十年的海外生活，熟练掌握英语母语者在医疗场景中的地道表达。 自2019年投身OET教学以来，已培训近500名来自不同国家/地区的中文母语医护考生（港澳台新加坡），学生遍布美英澳加新爱德芬，年学生逾百人，教学规模持续扩大。 OET作为全球医疗健康领域*重要的职业英语考试，其成绩被澳、新、英、美、加、爱等主要英语国家的移民局和职业评估机构广泛接受。它面向医生、护士、牙医、药剂师、物理治疗师、放射技师等几乎所有医学专业的从业者。每年有近十万医疗人士选择OET以实现国际职业梦想，考生规模稳步增长。 本书词汇基于多年考题跟踪与出题逻辑分析，配套讲解直击考试难点，使其超越传统词汇书，成为一部*的备考指南。书中大量的口语化范例与场景应用，更能直接帮助医护工作者提升临床沟通能力。因此，即便不备考OET，本书亦是提升涉外医疗临床医患交流水平的实用工具书。