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  • A Tale of Identifiers

    Identifiers aren't locators, and they aren't pointers or links either. They are a logical concept in a relational database, and, unlike the more traditional methods of accessing data, don't derive from the way that data gets stored. Identifiers uniquely identify members of the set, and it should be possible to validate and verify them. Celko somehow involves watches and taxi cabs to illustrate the point.

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  • A Tale of Identifiers

    Identifiers aren't locators, and they aren't pointers or links either. They are a logical concept in a relational database, and, unlike the more traditional methods of accessing data, don't derive from the way that data gets stored. Identifiers uniquely identify members of the set, and it should be possible to validate and verify them. Celko somehow involves watches and taxi cabs to illustrate the point.

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  • Book Readers As Envisioned Circa 1935

    - by Jason Fitzpatrick
    This early 20th century sketch showcases the future of books; thankfully the actual delivery of the concept proved to be a bit more lap-friendly. The sketch is from the April, 1935 issues of Everyday Science and Mechanics and presents a vision of book consumption that, thankfully, came to pass in a much more compact fashion that doesn’t require swapping rolls of film. [via Boing Boing] How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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  • MacBook Pro (5,3) Keyboard Weirdness

    - by schwuk
    My MacBook Pro (5,3) works almost completely OOTB (with restricted video and WiFi drivers), but I am experiencing some keyboard weirdness. Specifically to get either (` and ~) or (´ and ¨) I have to press the key twice. Only these two keys behave this way - every other key mapping works. Keyboard settings are: Model: Apple Laptop (due to #538474) Layout: United Kingdom Macintosh (International)

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  • How to Find the Best SEO Company

    When you own or manage a website, chances are you'll find yourself short on time when it comes to taking care of all of the parts needed to run it.  An important concept for site owners is that of search engine optimization, or SEO.  This is a process which drives visitors to your website and helps them to locate your company based on their search engine keywords. It's vital to choose the best seo company for this essential task.

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  • Declarative Data Load for Object Properties & .NET UI Controls

    This article details a new practice to prepare the .NET Business Objects using the data retrieved from the Database and binding them to .NET UI Controls dynamically using Reflection through centralized mapping between a typess Properties Vs Data-Columns Vs UI-Controls....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Why avoid Java Inheritance "Extends"

    - by newbie
    Good day! Jame Gosling said “You should avoid implementation inheritance whenever possible.” and instead, use interface inheritance. But why? How can we avoid inheriting the structure of an object using the keyword "extends", and at the same time make our code Object Oriented? Could someone please give an Object Oriented example illustrating this concept in a scenario like "ordering a book in a bookstore?" Thank you in advance.

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  • What are good technical questions to ask to determine the analytical skill of a programmer?

    - by ENT
    I am a non-technical recruiter and I want to lay out some initial interview questions, one of which is to determine the analytic skill of a person. We will soon launch our hiring process for programmers and we are mapping out what would be the best questions. I have read quite a few posts here that suggested on how to interview programmers but I haven't come across on what technical question to ask that non-technical recruiters can easily comprehend if the answer is good or bad.

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  • 6 important uses of Delegates and Events

    In this article we will first try to understand what problem delegate solves, we will then create a simple delegate and try to solve the problem. Next we will try to understand the concept of multicast delegates and how events help to encapsulate delegates. Finally we understand the difference between events and delegates and also understand how to do invoke delegates asynchronously.

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  • The Kayak Framework: An easy way to speak HTTP with .NET

    Kayak is a lightweight HTTP server for the CLR, and the Kayak Framework is a utility for mapping HTTP requests to C# method invocations. With Kayak, you can skip the bulk, hassle, and overhead of IIS and ASP.NET. Kayak enables you to do more with less syntax, and is easy to configure to work in any way you care to dream up.

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  • How to texture voxel terrain without triplanar texturing?

    - by Thelvyn
    How can a voxel terrain (marching cubes) be textured without triplanar mapping ? The goal being to have more artistic freedom. I think, I could unwrap the mesh while extracting the isosurface then use projective painting. But I do not know how to handle terrain modifications without breaking the texture. I also guess that virtual texturing could help here. Links for these matters would be appreciated.

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  • How can I achieve this lighting with OpenGL?

    - by Smallbro
    I'm currently trying to implement a type of "smooth" lighting. How can I achieve lighting which looks like this: http://dl.dropbox.com/u/1668516/concept/warp3.png Using OpenGl. I've attempted to use blending modes and have come very close to making it work but it came out like this: https://pbs.twimg.com/media/A1071viCEAAlFmJ.png and I also wasn't able to change the alpha of the black background which I want to be able to do. Could I get a few pointers in the right direction?

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  • Can anybody recommend an application for laying out algorithms on a mac? [closed]

    - by Scotty
    In my intro to software development class I'm using a program called raptor which really helps me when I'm mapping out semi-complex algorithms and programs. The thing that I like about raptor is that when I'm flowcharting an algorithm, I can run it like an actual program and raptor steps through the code block by block. Unfortunately, raptor is only available on windows and when I'm at home I spend most of my time on Mac OS X. Is there any programs available for mac that help flowchart and step through algoritms?

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  • Resources for Game Development in iPhone for beginners [closed]

    - by Volatil3
    Possible Duplicate: What are the best iPhone game development resources? Hi I'm a programmer but I have never worked on Game programming so have no idea about OpenGL and all that. I am more interested to get into physics based games like Angry Birds and want to implement fewer ideas. Can you recommend me some good books which not only teach the concept of game programming but also practical implementation in iPhone platform? Thanks in advance

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  • HP présente "Net-Zero Energy DataCenter", une architecture permettant une réduction de 30% de la consommation d'énergie et de 80% des coûts

    HP présente son architecture "Net-Zero Energy DataCenter", permettant une réduction de 30% de la consommation d'énergie et de 80% des coûts et dépendance des réseaux électriques HP vient de présenter son concept d'architecture « Net-Zero Energy » des centres de données économes en énergie, permettant de réduire la dépendance des réseaux électriques traditionnels. La vision de HP est de permettre aux entreprises de faire fonctionner les centres de données avec en utilisant leur propre énergie générée sur place, grâce à des sources renouvelables afin d'éliminer des dépendances comme l'emplacement, l'approvisionnement en énergie et les couts. L'architecture proposée ...

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  • Liquid XML 2012 Service Pack 1 available

    - by bconlon
    Liquid XML Editor is one of my favourite tools, but I was slightly concerned with the original 2012 release as the new XML Data Mapper tool was a bit buggy. So I was pleased to see SP1 is now available for download.Sure enough the issues have been fixed and it's once more a great tool!The data mapper can also now be run from the command line (this was a little limiting before as you had to open the IDE to run the mapping) and the Help now contains full documentation.#

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  • The difference

    So with the CTP tools available, weve been building a few apps, just to get a feel for the tools and whats supported in the framework.  Whats been great is that everything is fairly familiar and consistent, largely to do with the .net framework and Microsofts focus on providing good tools.  Weve produced mobile applications, mostly in concept form, for Windows Phone Classic, iPhone and Android but never so quickly and not of such high quality and visual impression.  I attribute some of this obviously to our familiarity to the Microsoft platform and tools.  Though when you look at the designs our team has produced, it becomes clear that this is not just another mobile application container.                                                            The Metro design language implores content prominence with fluid motion and transitions, with a crisp font and easily organized features and services placement.  In addition to a purposeful right edge tease, where the intent is for users to discover new premium content and services.   The concept that enables this is called hubs, building application with hubs changes your thinking from a single mobile application task, to thinking creatively about a mobile experience. Its engaging to think of the other brands and industry verticals that will take advantage of this core feature.  Combine this with Windows Phone 7 live tiles, more on that later, and you have a recipe for a solid mobile services platform.                                                              This so much more fun and liberating than my icon on a gridDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Ignoring SEO Information

    The Internet is filled with so much of information about the SEO and web marketing. The concept of blogging and writing articles has come up only for the reason that everyone looks for only latest content in the industry. Regrettably it is a fact that both the true and the untrue SEO persons write the same amount of articles.

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