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• Booting Error while using 12.04 booting from GRUB

  - by Paul Z.

  my name is Paul. I have encountered an issue relating to GRUB booting and the booting process in general. I have been running Ubuntu 12.04 LTS on my machine for quite a while. Before that, i had (before) 10.04, 11.04, 11.10, etc. I have been running Ubuntu, in general, but more specifically 12.04 for a long time with little to no problems. The problem: Earlier today, i was using my machine and then decided to take a little break. I shut down my machine (laptop, in case anyone was wondering) and left. Later, I came back ready to start it up and continue. I started it up and it took me to the Toshiba screen (like normal) then to the GRUB screen. I guessed that nothing was truly wrong, and chose the first option (something around the lines of: Ubuntu, with linux 3.22.0-35-generic). I waited for a bit and it still displayed the same purple screen. I restarted it and now chose the option like the first but with recovery at the end. Same result. Later, I waited longer and found that my computer came up with a bunch of lines of script. I waited longer but nothing new happened. What are your suggestions as to fix this problem? I will let my computer run overnight with the recovery setting and will let you know what the result is. Until then, please help. Thank you, your time and effort is greatly appreciated!

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• How-to get the binding for a tab in the Dynamic Tab Shell Template

  - by Frank Nimphius

  The Dynamic Tab Shell template does expose a method on the Tab.java class that allows you to get access to the ADF binding container for a tab. At least in theory this works, because in practice this call always returns a null value (a bug is filed for this). To work around the problem, you can use code similar to the following to get the ADF binding for a specific tab DCBindingContainer currentBinding = (DCBindingContainer) BindingContext.getCurrent().getCurrentBindingsEntry(); DCBindingContainer templateBinding = (DCBindingContainer)currentBinding.get("ptb1"); DCBindingContainer tabBinding= (DCBindingContainer)templateBinding.get("r"+0);  In the code line above, the tabBinding variable will hold the binding reference to the first tab in the dynamic tab shell template. Note that the tab doesn't need to be visible for this (which has to do with how the template works).  "ptb1" is the template reference name in the PageDef file (Executable section) of the template consumer view. Check this string in your page before using this code. If it differs, change it also in the code above. "r0" is the binding reference of the first tab in the template. Te last tab is referenced by "r14".  

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• LUKS no longer accepts my my passphrase

  - by Two Spirit

  I created a 4 drive RAID5 setup using mdadm and upgrading from 2TB drives to the new Hitachi 7200RPM 4TB drives. I can initially open my luks partition, but later can no longer access it. I can no longer access my LUKS partition even tho I have the right passphrases. It was working and then at an unknown point in time loose access to LUKS. I've used the same procedures for upgrading from 500G to 1TB to 1.5TB to 2TB. After the first time this happened a week ago, I thought maybe there was some corruption so I added a 2nd Key as a backup. After the second time the LUKS became unaccessible, none of the keys worked. I put LUKS on it using cryptsetup -c aes -s 256 -y luksFormat /dev/md0 # cryptsetup luksOpen /dev/md0 md0_crypt Enter LUKS passphrase: Enter LUKS passphrase: Enter LUKS passphrase: Command failed: No key available with this passphrase. The first time this happened while I was upgrading to 4TB drives, I thought it was a fluke, and ultimately had to recover from backups. I went an used luksAddKey to add a 2nd key as a backup. It happened again and I tried both passphrases, and neither worked. The only thing I'm doing differently this time around is that I've upgraded to 4TB drives which use GPT instead of fdisk. The last time I had to even reboot the box was over 2 years ago. I'm using ubuntu-8.04-server with kernel 2.6.24-29 and upgraded to -2.6.24-31, but that didn't fix the problem.

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• Let's Get It Started! Oracle OpenWorld Music Festival

  - by Oracle OpenWorld Blog Team

  By Karen Shamban How are you spending your day at Oracle OpenWorld? At the Oracle Users Forum? Getting some training at Oracle University? Meeting up with colleagues and friends to discuss technology? Doing some or all of the above while enjoying the gorgeous fall weather in San Francisco? Regardless of how your day is going, be sure to attend the opening keynote this evening - starting at 5:00 p.m. -  at Moscone North, Hall D. Larry Ellison is the featured keynoter, so you know he'll have something interesting and intriguing to say. Following the keynote is the Welcome Reception, being held this year in both the Howard Street Tent and Yerba Buena Gardens. Debuting tonight is the Oracle OpenWorld Music Festival and it's going to be awesome! The schedule for this evening is below. Note that due to limited capacity at some venues, admission (free with your Oracle OpenWorld badge) is first-come, first-served.  Enjoy yourself, and rock on! Time Performer Venue 7:00 p.m DJ ZAQ John Colins 7:00 p.m DJ Blondie K. Ruby Skye 7:15 p.m The Velvet Teen Mezzanine 8:30 p.m Astral Mezzanine 8:30 p.m. Macy Gray Yerba Buena Gardens 9:00 p.m. American Steel Mezzanine 8:30 p.m. Magic Wands Ruby Skye 10:00 p.m. The Crystal Method Ruby Skye 10:30 p.m. Dirty Ghosts Mezzanine

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• 2D Rectangle Collision Response with Multiple Rectangles

  - by Justin Skiles

  Similar to: Collision rectangle response I have a level made up of tiles where the edges of the level are made up of collidable rectangles. The player's collision box is represented by a rectangle as well. The player can move in 8 directions. The player's velocity is equal in X and Y directions and constant. Each update, I am checking the player's collision against all tiles that are a certain distance away. When the player collides with a rectangle, I am finding the intersection depth and resolving along the most shallow axis followed by the other axis. This resolution happens for both axes simultaneously. See below for two examples of situations where I am having trouble. Moving up-left against the left wall In the scenario below, the player is colliding with two tiles. The tile intersection depth is equal on both axes for the top tile and more shallow in the X axis for the middle tile. Because the player is moving up the wall, the player should slide in an upward direction along the wall. This works properly as long as the rectangle with the more shallow depth is evaluated first. If the equal intersection depth rectangle is evaluated first, there is a chance the player becomes stuck. Moving up-left against the top wall Here is an identical scenario with the exception that the collision is with the top wall. The same problem occurs at the corners when intersection depth is equal for both axes. I guess my overall question is: How can I ensure that collision response occurs on tiles that have non-equal intersection depth before tiles that have equal intersection depth in order to get around the weirdness that occurs at these corners. Sean's answer in the linked question was good, but his solution required having different velocity components in a certain direction. My situation has equal velocities, so there's no good way to tell which direction to resolve at corners. I hope I have made my explanation clear.

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• Order in which passphrase is asked for encrypted volumes

  - by Lars Kotthoff

  I have installed 12.10 on a machine with two disks. The root partition is on one disk, the swap partition on the other. Both disks are encrypted and I have added the corresponding entries to /etc/crypttab. During boot, it asks for the passphrase for the disk with the root filesystem. Then it continues booting and gets to the login screen before I get a chance to enter the passphrase for the other disk. After logging in, I verified that it was actually waiting for me to enter the passphrase for that second partition (askpass process is running). But at that point, I have no way of entering the passphrase anymore. The manpage for crypttab suggests that the order in which the volumes are specified matters, so I changed it to have the swap disk first. I updated the initramfs and grub afterwards, but it didn't make any difference. How can I specify the order in which the encrypted partitions are unlocked? I'm looking for a solution that either asks for the swap passphrase first or tells the system to wait until all encrypted partitions are unlocked before displaying the login screen.

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• Click and Drag from Clickpad stops working after a while 12.04

  - by Jason O'Neil

  I've got a Samsung Notebook (NP-QX412-S01AU) with a touchpad / clickpad. I'm running 12.04 Precise. When I first log into my computer, the touchpad behaves exactly as expected and desired. The longer I stay logged in, it slowly degrades. I'll try describe it. There are 3 ways of "dragging" on this clickpad: (Physical) click and hold with one finger, and drag around while still holding it down. All with one finger. (Physical) Click and hold with one finger, then with another finger drag around to move cursor. Double tap (not a physical click) and on the second tap, hold and drag. I most naturally use option 1, but here's how it works: When I first turn on, options 1, 2 and 3 all work. After a while, only options 2 and 3 work. Later still, only option 3 works. Restarting X causes all 3 to work again. I've compared the output of "synclient" in each of the states, and there was no difference. Anybody know what to look at? Or at the very least, a command I can run to "restart" the mouse driver without restarting X?

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• Script language native extensions - avoiding name collisions and cluttering others' namespace

  - by H2CO3

  I have developed a small scripting language and I've just started writing the very first native library bindings. This is practically the first time I'm writing a native extension to a script language, so I've run into a conceptual issue. I'd like to write glue code for popular libraries so that they can be used from this language, and because of the design of the engine I've written, this is achieved using an array of C structs describing the function name visible by the virtual machine, along with a function pointer. Thus, a native binding is really just a global array variable, and now I must obviously give it a (preferably good) name. In C, it's idiomatic to put one's own functions in a "namespace" by prepending a custom prefix to function names, as in myscript_parse_source() or myscript_run_bytecode(). The custom name shall ideally describe the name of the library which it is part of. Here arises the confusion. Let's say I'm writing a binding for libcURL. In this case, it seems reasonable to call my extension library curl_myscript_binding, like this: MYSCRIPT_API const MyScriptExtFunc curl_myscript_lib[10]; But now this collides with the curl namespace. (I have even thought about calling it curlmyscript_lib but unfortunately, libcURL does not exclusively use the curl_ prefix -- the public APIs contain macros like CURLCODE_* and CURLOPT_*, so I assume this would clutter the namespace as well.) Another option would be to declare it as myscript_curl_lib, but that's good only as long as I'm the only one who writes bindings (since I know what I am doing with my namespace). As soon as other contributors start to add their own native bindings, they now clutter the myscript namespace. (I've done some research, and it seems that for example the Perl cURL binding follows this pattern. Not sure what I should think about that...) So how do you suggest I name my variables? Are there any general guidelines that should be followed?

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• System in low-graphics mode

  - by Artem Moskalev

  I am totally new to Linux, and Ubuntu. I bought ASUS X53E Notebook, erased Windows and installed Ubuntu. First it worked ok. Then when I started working with it, i opened the terminal, entered sudo chmod 666 usr and then all the icons from the main panel disappeared + the whole system stopped responding. I decided to restart the system. When restarted, a message appears: the system is running in low graphics mode and below it: Your screen, graphics card and input device setting could not be detected correctly. You will need to configure it yourself. But the "OK" button is disabled and if I press any buttons nothing happens. If I enter Ctrl-Alt-F2 it opens the bash terminal. But there commands sudo or apt-get are not found and it says that permission denied if i try to enter any folder like cd /usr If I enter the su command it asks for the password I don't know. When encountering this problem first, I reinstalled the whole Ubuntu. but today it happened again just the same. What shall I do? maybe there is something wrong with the hardware? If I need to install another distribution of Linux could you recommend one? but I'd rather stick to Debian releases like Ubuntu. so how do I fix the problem? PS: Please give answers in simple terms because am a newbie so i don't know what goes where yet.

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• QA - Developer communication

  - by exiter2000

  I am a developer and have worked at this company 4~5 years by now. We have been practicing scrum for about 2 years. I think, I have been worked well with QAs. I believe QAs/developers/technical writers are all one team. We are also actively hiring new team members. As a legacy member of the team, I have faced to assist new member(including developers and testers) with my business knowledge. We work on 2 weeks base scrum. I usually deliver my user story completely by the first date of second week and do some qa build with partial functionality of my user story so that QA has a good idea about my implementation and flow. Recently, I have met some QAs. In first week, the QAs do not talk... In stand up meeting, they say they are developing test cases regardless I deliver the user story or not. In second week, I do not have a single defect till Thursday afternoon and suddenly I have a major defect with several minor UI defect, which I delivered one week ago. Or I have one or two minor defects on second week however major defects on Thursday afternoon or Friday morning. This eventually make the story rolls over to the next sprint. Major defect takes time to fix and more importantly it would trigger the regression test for the story... Even if I worked Thursday evening and fixed it, the testing will not finish. And this happens multiple times with certain QAs. As a same team member, I talked to the QAs if they could test major defect with higher priority... Rejected... Because I do not understand QA process.. So I asked roughly how many major test cases are covered so far in the stand up meeting on 2nd week Wednesday.. The response is I should not ask this to the QA in the stand up meeting... What do I do?

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• What is the advantage to using a factor of 1024 instead of 1000 for disk size units?

  - by Joe Z.

  When considering the disk space of a storage medium, normally the computer or operating system will represent it in terms of powers of 1024 - a kilobyte is 1,024 bytes, a megabyte is 1,048,576 bytes, a gigabyte is 1,073,741,824 bytes, and so on. But I don't see any practical reason why this convention was adopted. Usually when disk size is represented in kilo-, mega-, or giga-bytes, it has to be converted into decimal first. In places where a power-of-two byte count actually matters (like the block size on a file system), the size is given in bytes anyway (e.g. 4096 bytes). Was it just a little aesthetic novelty that computer makers decided to adopt, but storage medium vendors decided to disregard? Whenever you buy a hard drive, there's always a disclaimer nowadays that says "One gigabyte means one billion bytes". It would feel like using the binary definition of "gigabyte" would artificially inflate the byte count of a device, making drive-makers have to pack 1.1 terabytes into a drive in order to have it show up as "1 TB", or to simply pack 1 terabyte in and have it show up as "931 GB" (and most of them do the latter). Some people have decided to use units like "KiB" or "MiB" in favour of "KB" and "MB" in order to distinguish the two. But is there any merit to the binary prefixes in the first place? There's probably a bit of old history I'm not aware of on this topic, and if there is, I'm looking for somebody to explain it. (Apologies if this is in the wrong place. I felt that a question on best practice might belong here, but I have faith that it will be migrated to the right place if it's incorrect.)

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• Why create a Huffman tree per character instead of a Node?

  - by Omega

  For a school assignment we're supposed to make a Java implementation of a compressor/decompresser using Huffman's algorithm. I've been reading a bit about it, specially this C++ tutorial: http://www.cprogramming.com/tutorial/computersciencetheory/huffman.html In my program, I've been thinking about having Nodes that have the following properties: Total Frequency Character (if a leaf) Right child (if any) Left child (if any) Parent (if any) So when building the Huffman tree, it is just a matter of linking a node to others, etc. However, I'm a bit confused with the following quote (emphasis mine): First, every letter starts off as part of its own tree and the trees are ordered by the frequency of the letters in the original string. Then the two least-frequently used letters are combined into a single tree, and the frequency of that tree is set to be the combined frequency of the two trees that it links together. My question: why should I create a tree per letter, instead of just a node per letter and then do the linking later? I have not begun coding, I'm just studying the algorithm first, so I guess I'm missing an important detail. What is it?

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• Missing Package: header, Problem with MergeList, The package lists or status file could not be parsed or opened

  - by Inbar Rose

  THIS IS NOT A DUPLICATE OF SIMILAR QUESTIONS (like this) I just had to write that first, there are tons of questions similar to this, all of them have the same redirect to an answer that does not solve my problem, because I don't have the same problem, just the same symptom. I write tests for my companies application. One of these tests tries to upgrade the application from a previous version to a new version to make sure nothing breaks. When I am installing an old version of the application, some weird stuff starts to happen. Sometimes everything goes Okay, and nothing is wrong, other times when trying to install I get this message (company app name censored): E: Encountered a section with no Package: header E: Problem with MergeList /var/lib/apt/lists/XXX-amd64_Packages E: The package lists or status file could not be parsed or opened. Using the solutions provided in the questions similar to this one (like this). Do not help, and the problem keeps repeating itself once it happens the first time. This has led me to believe something is wrong on the apt server where the package is being created, but searching these errors yields no information on anything beyond the "fix" suggested in the question I linked, the only other source of information I could find also did not help (here): So I am asking for information; What is the actual problem? What causes the problem? What can fix the problem? I hope this question is in good format, if there is a problem, or missing information I can move to chat.

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• Best way to implement mouse-based movement in MMOG

  - by fiftyeight

  I want to design an MMO where players click the destination they want to walk to with their mouse and the character moves there, similar to Runescape in this manner. I think it should be easier than keyboard movement since the client can simply send the server the destination each time the player clicks on a destination. The main thing I'm trying to decide is what to do when there are obstacles in the way. It's no problem to implement a simple path-finding solution on the client, the question is if the server will do path-finding as well, since it'll probably take too much Computation power from the server. What I though is that when there is an obstacle the client will send only the first coordinate it plans to go to and then when he gets there he'll send the next coordinate automatically. For example if there is a rock in the way the character will decide on a route that is made of two destinations so it goes around the rock and when it arrives at the first destination it sends the next coordinate. That way if the player changes destination is the middle he won't send unnecessary information. Is this a good way to implement it and is there a standard way MMOGs usually do it? EDIT: I should also mention that the server will make sure all movements are legal and there aren't any walls in the way etc. In the way I wrote it should be quite easy since all movements will be sent in straight lines so the server will just check there aren't any obstacles along that line.

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• How do you encode Algebraic Data Types in a C#- or Java-like language?

  - by Jörg W Mittag

  There are some problems which are easily solved by Algebraic Data Types, for example a List type can be very succinctly expressed as: data ConsList a = Empty | ConsCell a (ConsList a) consmap f Empty = Empty consmap f (ConsCell a b) = ConsCell (f a) (consmap f b) l = ConsCell 1 (ConsCell 2 (ConsCell 3 Empty)) consmap (+1) l This particular example is in Haskell, but it would be similar in other languages with native support for Algebraic Data Types. It turns out that there is an obvious mapping to OO-style subtyping: the datatype becomes an abstract base class and every data constructor becomes a concrete subclass. Here's an example in Scala: sealed abstract class ConsList[+T] { def map[U](f: T => U): ConsList[U] } object Empty extends ConsList[Nothing] { override def map[U](f: Nothing => U) = this } final class ConsCell[T](first: T, rest: ConsList[T]) extends ConsList[T] { override def map[U](f: T => U) = new ConsCell(f(first), rest.map(f)) } val l = (new ConsCell(1, new ConsCell(2, new ConsCell(3, Empty))) l.map(1+) The only thing needed beyond naive subclassing is a way to seal classes, i.e. a way to make it impossible to add subclasses to a hierarchy. How would you approach this problem in a language like C# or Java? The two stumbling blocks I found when trying to use Algebraic Data Types in C# were: I couldn't figure out what the bottom type is called in C# (i.e. I couldn't figure out what to put into class Empty : ConsList< ??? >) I couldn't figure out a way to seal ConsList so that no subclasses can be added to the hierarchy What would be the most idiomatic way to implement Algebraic Data Types in C# and/or Java? Or, if it isn't possible, what would be the idiomatic replacement?

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• Inspiring the method of teaching. Example- C++ :)

  - by Ashwin

  A year ago I graduated with a degree in Computer Science and Engineering. Considering C++ as the first choice of programming language I have been in the process of learning C++ in many ways. At first - five years back - I had many conceptions, most of which were so abstract to me. It started when I knew almost everything about Structs in C and nothing about Classes in C++. I went through a great time experimenting them all and learning a lot. I had a hard time evaluating Procedural programming vs Object-Oriented Programming. Deciding when to choose Procedural or Object-Oriented Programming took a great deal of patience for me. I knew that I cannot underestimate any of these Programming styles... Though Procedural programming is often a better choice than simple sequential unstructured programming, when solving problems with procedural programming, we usually divide one problem into several steps in order regarded as functions. Then we call these functions one by one to get the result of the problem. When solving problems with Object Oriented Priciples we divide one problem into several classes and form the interaction between them. Evaluating these two at the beginning (as a learner) required a lot of inspiration and thoughts. Instructing to think step by step. Relative concepts to understand deeply. Intensive interests to contrast both solving in both POP and OOP. If you were ever a mentor: What ideas/methods would you teach to students in which it will Inspire them to learn a programming language (in general, computer sciences)?

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• Having troubles with LibNoise.XNA and generating tileable maps

  - by Jon

  Following up on my previous post, I found a wonderful port of LibNoise for XNA. I've been working with it for about 8 hours straight and I'm tearing my hair out - I just can not get maps to tile, I can't figure out how to do this. Here's my attempt: Perlin perlin = new Perlin(1.2, 1.95, 0.56, 12, 2353, QualityMode.Medium); RiggedMultifractal rigged = new RiggedMultifractal(); Add add = new Add(perlin, rigged); // Initialize the noise map int mapSize = 64; this.m_noiseMap = new Noise2D(mapSize, perlin); //this.m_noiseMap.GeneratePlanar(0, 1, -1, 1); // Generate the textures this.m_noiseMap.GeneratePlanar(-1,1,-1,1); this.m_textures[0] = this.m_noiseMap.GetTexture(this.graphics.GraphicsDevice, Gradient.Grayscale); this.m_noiseMap.GeneratePlanar(mapSize, mapSize * 2, mapSize, mapSize * 2); this.m_textures[1] = this.m_noiseMap.GetTexture(this.graphics.GraphicsDevice, Gradient.Grayscale); this.m_noiseMap.GeneratePlanar(-1, 1, -1, 1); this.m_textures[2] = this.m_noiseMap.GetTexture(this.graphics.GraphicsDevice, Gradient.Grayscale); The first and third ones generate fine, they create a perlin noise map - however the middle one, which I wanted to be a continuation of the first (As per my original post), is just a bunch of static. How exactly do I get this to generate maps that connect to each other, by entering in the mapsize * tile, using the same seed, settings, etc.?

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• After login I only get a terminal window

  - by Ambidex

  First of, let me tell you I'm a n00b at ubuntu. I have updated my Ubuntu mediacenter to a later version of ubuntu, currently at 12.04. I'm working through a lot of updates to get to the latest. But since my first update I got the new login screen (lightdm?) and my autologin wasen't working anymore. So I Googled how I could make lightdm autologin. I've managed this by making my /etc/lightdm/lightdm.conf look as follows: [SeatDefaults] greeter-session=unity-greeter user-session=ubuntu autologin-user=my_user autologin-userutologin-user=-timeout=0 Which seemed to work... But now that it automatically logs in, I seem to get the following type of screen (through nomachine remote desktop client): Sorry... I am unable to post my screenshot here because I do not have the 10 reputation points in askubuntu yet.... darn it... But the screen has a terminal at the top left of the screen (not an actual "window"), and the ubuntu loading screen is still behind it. I've tried running startx as you can see. But, this seems to actually be x server. But if I run unity --reset, it seems that a lot of the desktop gets restored, but... with a lot of errors and warnings and the next time I boot, it's the same story all over again. Also, when I close the terminal window after getting my desktop back, I get thrown back at the login screen. Please bear with my lack of knowledge of ubuntu and it's underlying unix. I thank you in advance.

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• CodePlex Daily Summary for Thursday, November 15, 2012

  CodePlex Daily Summary for Thursday, November 15, 2012Popular ReleasesMVC Bootstrap: MVC Boostrap 0.5.6: A small demo site, based on the default ASP.NET MVC 3 project template, showing off some of the features of MVC Bootstrap. Added features to the Membership provider, a "lock out" feature to help fight brute force hacking of accounts. After a set number of log in attempts, the account is locked for a set time. If you download and use this project, please give some feedback, good or bad!Home Access Plus+: v8.4: This release only contains fixes for the 97576 release, you can download the v8.3 release files which aren't in this release from 97576 Changes: Fixed: Setup.aspx wrong jquery reference Fixed: Issue with loading the user's photo Changed: The JSON Urls to use a number of a date rather than a string Added: Code to hopefully, finally, fix the AD Browser not working some times File Changes: ~/bin/hap.ad.dll ~/bin/hap.web.dll ~/bin/hap.web.configuration.dll ~/bin/hap.web.livetiles.dl...OnTopReplica: Release 3.4: Update to the 3 version with major fixes and improvements. Compatible with Windows 8. Now runs (and requires) .NET Framework v.4.0. Added relative mode for region selection (allows the user to select regions as margins from the borders of the thumbnail, useful for windows which have a variable size but fixed size controls, like video players). Improved window seeking when restoring cloned thumbnail or cloning a window by title or by class. Improved settings persistence. Improved co...DotSpatial: DotSpatial 1.4: This is a Minor Release. See the changes in the issue tracker. Minimal -- includes DotSpatial core and essential extensions Extended -- includes debugging symbols and additional extensions Tutorials are available. Just want to run the software? End user (non-programmer) version available branded as MapWindow Want to add your own feature? Develop a plugin, using the template and contribute to the extension feed (you can also write extensions that you distribute in other ways). Components ...JSLint for Resharper: 0.2.4701 (Resharper 7.1): Added settings dialog. May now prioritize before Resharper JS messages JSLint settings may be set as default. (For example browser: true, indent: 2) Added support for JSLint directives in mixed language files. Upgraded to Resharper 7.1.WinRT XAML Toolkit: WinRT XAML Toolkit - 1.3.5: WinRT XAML Toolkit based on the Windows 8 RTM SDK. Download the latest source from the SOURCE CODE page. For compiled version use NuGet. You can add it to your project in Visual Studio by going to View/Other Windows/Package Manager Console and entering: PM> Install-Package winrtxamltoolkit Features Attachable Behaviors AwaitableUI extensions Controls Converters Debugging helpers Extension methods Imaging helpers IO helpers VisualTree helpers Samples Recent changes Docum...Social Network Importer for NodeXL: SocialNetImporter(v.1.6.1): This new version includes: - Fixes for some reported bugs. To use the new graph data provider, do the following: Unzip the Zip file into the "PlugIns" folder that can be found in the NodeXL installation folder (i.e "C:\Program Files\Social Media Research Foundation\NodeXL Excel Template\PlugIns") Open NodeXL template and you can access the new importer from the "Import" menuAcDown?????: AcDown????? v4.3: ??●AcDown??????????、??、??、???????。????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。 ●??????AcPlay?????，??????、????????????????。 ● AcDown??????????????????，????????????????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ???? 32??64? ???Linux ????(1)????????Windows XP???，????????.NET Framework 2.0???(x86)，?????"?????????"??? (2)???????????Linux???，????????Mono?? ??2...SoftRenderer: SoftRenderer v0.2: SPONZA DEMO SoftRender is a CPU based renderer. It render 3D scene only on CPU. It's a project for learning purpose. SoftRender ????????，??????????。 http://i3.codeplex.com/Download?ProjectName=sr&DownloadId=528732 ?????????????，???compilehwshader.bat???????shader SoftRenderer.exe?vc10???????bin?? SoftRenderer_avx.exe?intel????????avx???cpu?????bin??WallSwitch: WallSwitch 1.2.1: Version 1.2.1 Changes: Improved collage image distribution to overlap older images first. Set default collage background blur distance to 4 (provides a more gradual effect). Fixed issue where wallpaper not displayed on Windows Vista when Cross-Fade transitions enabled. Fixed issue with duplicated themes not updating history view correctly.????: ???? 1.0: ????Unicode IVS Add-in for Microsoft Office: Unicode IVS Add-in for Microsoft Office: Unicode IVS Add-in for Microsoft Office ??? ?????、Unicode IVS?????????????????Unicode IVS???????????????。??、??????????????、?????????????????????????????。Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.74: fix for issue #18836 - sometimes throws null-reference errors in ActivationObject.AnalyzeScope method. add back the Context object's 8-parameter constructor, since someone has code that's using it. throw a low-pri warning if an expression statement is == or ===; warn that the developer may have meant an assignment (=). if window.XXXX or window"XXXX" is encountered, add XXXX (as long as it's a valid JavaScript identifier) to the known globals so subsequent references to XXXX won't throw ...???????: Monitor 2012-11-11: This is the first releasehttpclient?????????: httpclient??????? 1.0: httpclient??????? （1）?????????? （2）????????? （3）??2012-11-06??，???????。VidCoder: 1.4.5 Beta: Removed the old Advanced user interface and moved x264 preset/profile/tune there instead. The functionality is still available through editing the options string. Added ability to specify the H.264 level. Added ability to choose VidCoder's interface language. If you are interested in translating, we can get VidCoder in your language! Updated WPF text rendering to use the better Display mode. Updated HandBrake core to SVN 5045. Removed logic that forced the .m4v extension in certain ...ImageGlass: Version 1.5: http://i1214.photobucket.com/albums/cc483/phapsuxeko/ImageGlass/1.png v1.5.4401.3015 Thumbnail bar: Increase loading speed Thumbnail image with ratio Support personal customization: mouse up, mouse down, mouse hover, selected item... Scroll to show all items Image viewer Zoom by scroll, or selected rectangle Speed up loading Zoom to cursor point New background design and customization and others... v1.5.4430.483 Thumbnail bar: Auto move scroll bar to selected image Show / Hi...Building Windows 8 Apps with C# and XAML: Full Source Chapters 1 - 10 for Windows 8 Fix 002: This is the full source from all chapters of the book, compiled and tested on Windows 8 RTM. Includes: A fix for the Netflix example from Chapter 6 that was missing a service reference A fix for the ImageHelper issue (images were not being saved) - this was due to the buffer being inadequate and required streaming the writeable bitmap to a buffer first before encoding and savingmyCollections: Version 2.3.2.0: New in this version : Added TheGamesDB.net API for Games and NDS Added Support for Windows Media Center Added Support for myMovies Added Support for XBMC Added Support for Dune HD Added Support for Mede8er Added Support for WD HDTV Added Fast search options Added order by Artist/Album for music You can now create covers and background for games You can now update your ID3 tag with the info of myCollections Fixed several provider Performance improvement New Splash ...Draw: Draw 1.0: Drawing PadNew ProjectsCreatorRSS: CreatorRSS - A Simple Desktop tray RSS Reader This is a simple desktop RSS reader that will help in managing your feeds and get notifications. CreatorRSS is based on .NET framework 2.0 and is coded in C#. This was tested only on Windows Xp Professional Sp2 but it should work on any Windows operating systems that support .NET framework. Extensions Library: Extension Library adds several helpful extensions to your project including: - SharePoint Logging - Event Viewer Logging - Exception Handling - .Net ExtensionsHoliday Calendar: This project contains a holiday calendar user control to be used in Windows Form applications.InputSQL: C# InputSQLInstall Visual Basic 6 in Windows 8: Please see the home page.KaartenSolution: A very simple card game.MezanmiNet_TaxiReviews: just a review application on the mobile platformMSHelpMeHD: A Windows 8 Store App.ProjectSocial: This is just a project to try coding.Rabbit MQ Client for Windows Store apps: rabbitmq client support for windows apps storeRFC 822 DateTime: Parse or write a date and time formatted according to the RFC 822 specification. RxJS TypeScript difinition: TypeScript d.ts files for RxJS(ReactiveExtensions for JavaScript)Samurai Blades - Webapp: A mimic of a classic board game (Shogun) created for web using HTML5 and ASP.NET MVC 4 (including the new typescript js compiler). servicehook: testSIMS Bulk Import: SIMS .net is the most popular MIS system used by schools across the UK. This tool allows you to bulk import email addresses and information into UDF fields.SpaceFlight: This project is a browser for the SloanDigital Sky Survey Data sets that allows for unconstrained movement within the data set.Sparse matrix format converter: Convert matrix market files to CSR0, CSR1 format. SPAutoSuggestion: A JavaScript application to show auto-suggestions in SharePoint search site's text boxes like in Google.SpreadsheetLight by Vincent Tan: For the latest release of SpreadsheetLight always go to http://www.spreadsheetlight.com, Anele MbangaSSTU: SSTU - this is simple client for Russian "Saratov State Technical University" web-site.Username generator library: Helps generate usernamesVideoStream: First attempt at a Windows Store Style App, aims to make it easy to browse videos from links provided in social media streams.WP8 Async WebClient: Provides async/await (TPL) capability to WebClient within Windows Phone 8wsccprototype: this is a prototype of what the main website will look like. Every other customization will be made in time.wsubi: A spiced-up way to manage scripts. This is a Windows port of the the 'sub' project from 37signals (https://github.com/37signals/sub).??C#????????: ?????????????ROYcms?????????！ 1.?????????，?????? 2.????????，?????????? 3.?????，?????，????????????????,??????????? 4.???????????，????

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• Most effective work habit for coding? [on hold]

  - by Cris

  Working on a big solo project (~15,000 LOC), I am encountering the following phenomenon: I seem to work best when I program in short bursts of 10-15 minutes. Right now I am working on a section which is a complete first time for me architecturally and if I have any architectural issues that emerge when doing the implementation, I seem to be able to best serve these by taking a total break. Then, later, sketching out the ideas on some paper. And when I feel I have sufficient clarity, then going back to code. This iterates until that architectural issue for that section is resolved. This seems quite counter intuitive: that I can progress more quickly by coding less, and taking more breaks. I am nearing the end of the sections which are "first times" for me, and about to dive into stuff which I am much more familiar and am wondering if this counter intuitive efficiency will continue. So my question is: even for regular coding of sections one is familiar with, which don't require constant re-clarification of the best architecture, is more progress to be attained by taking more breaks and coding in bursts?

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• Using position function for accessing particular node when using While Activity in SOA 11.1.1.5

  - by AJ

  Hi If you are using while activity in SOA Suite 11.1.1.5 and within loop you have a requirement to access repeating node of XML. You might need to use below XPATH expression for accessing the node. Here is the XML that I am using for this example <?xml version='1.0' encoding='UTF-8'?> David DemoJob 1 2012-04-15 40000 0 10 Steve TestJob 1 2012-04-15 40000 0 10 Here you can notice that Emp node is repeating i.e. EmpCollection node will contain multiple employees. Now in loop one of assign activity you need to access a particular node for e.g. For first time loop runs you want to access first node and second time second node and so on. You need to make use of postion() function like bpws:getVariableData('Receive1_Read_InputVariable','body','/ns4:EmpCollection/ns4:Emp[position()=$loopCounter]/ns4:job') Please Note: Here loopCounter is a variable that we have created of type xsd:int and prior to loop we have initialized a value of 1. Loop will run depending on the number of Emp nodes present at runtime. For that in while Activity you can use below XPATH expression ora:countNodes('Receive1_Read_InputVariable','body','/ns4:EmpCollection/ns4:Emp')=bpws:getVariableData('loopCounter') Do let me know in case of any issues or concern. Cheers AJ

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• Installing Ubuntu 12.04 on a single GPT SSD which contains Windows 7

  - by Gary

  I recently bought a brand new 64 bit PC with a (ASUS) motherboard that supports UEFI and a GPT formatted 240Gb SSD, which contains Windows 7 in the first of 3 (80Gb) partitions. When the system arrived, it booted into Windows 7 like a dream, with no problems. I did not originally want Windows, but the manufacturer does not work with Linux (of any flavour), so I thought I would install Ubuntu into the second partition and dual boot. I downloaded the 12.04 64bit version and proceeded to install. Having selected to 'install', the screen became corrupted, with multicoloured garbage across the middle third of the screen !! So, I rebooted and --- MISSING OPERATING SYSTEM !!! The only way I can now get into Windows is via Super Grub2. First question - what went wrong ? 2nd - Will Ubuntu install on a GPT disk partition ? 3rd - Will it install alongside Windows 7 without screwing the boot mechanism ? 4th - How do I do it ? I have scoured the internet looking for appropriate answers and found NONE ! Please help.......

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• Problems with Ubuntu and AMD A10-4655M APU

  - by Robert Hanks

  I have a new HP Sleekbook 6z with AMD A10-4655M APU. I tried installing Ubuntu with wubi--the first attempt ended up with a 'AMD unsupported hardware' watermark that I wasn't able to remove (the appeared when I tried to update the drivers as Ubuntu suggested) On the second attempted install Ubuntu installed (I stayed away from the suggested drivers) but the performance was extremely poor----as in Windows Vista poor. I am not sure what the solution is--if I need to wait until there is a kernel update with Ubuntu or if there are other solutions--I realise this is a new APU for the market. I would love to have Ubuntu 12.04 up and running--Windows 7 does very well with this new processor so Ubuntu should, well, be lightening speed. The trial on the Sleekbook with Ubuntu 12.10 Alpha 2 release was a complete failure. I created a bootable USB. By using either the 'Try Ubuntu' or 'Install Ubuntu' options resulted in the usual purple Ubuntu splash screen, followed by nothing...as in a black screen without any hint of life. Interestingly one can hear the Ubuntu intro sound. In case you are wondering, this same USB was trialed subsequently on another computer with and Intel Atom Processor. Worked flawlessly. Lastly the second trial on the Sleekbook resulted in the same results as the first paragraph. Perhaps 12.10 Beta will overcome this issue, or the finalised 12.10 release in October. I don't have the expertise to know what the cause of the behaviour is-the issue could be something else entirely. Sadly, the Windows 7 performance is very good with this processor-very similar and in some instances better to the 2nd generation Intel i5 based computer I use at my workplace. Whatever the cause is for the performance with Ubuntu 12.04 or 12.10 Alpha 2, the situation doesn't bode well for Ubuntu. Ubuntu aside, the HP Sleekbook is a good performer for the price. I am certain once the Ubuntu issue is worked on and solutions arise, the Ubuntu performance will probably be better than ever.

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• Where to place the R code for R+Sweave+LaTeX workflow

  - by claytontstanley

  I spent the last week learning 3 new tools: R, Sweave, and LaTeX. One question that came to my mind though when working through my first project: Where do I place the majority of the R code? The tutorials that I read online placed the majority of the R code in the LaTeX .Rnw file. However, I find having a bunch of R calculations in the LaTeX file distracting. What I do find extremely helpful (of course) is to call out to R code in the LaTeX file and embed the result. So the workflow I've been using is to place 99% of my R code in my .R file. I run that file first, save a bunch of calculations as objects, and output the .Rout file once finished (to save the work). Then when running Sweave, I load up that .Rout file, so that I have the majority of my calculations already completed and in the Sweave R session. Then my LaTeX callouts to R are quite simple: Just give me the XTable stored in 'res.table', or give me the result of an already-computed calculation stored in the variable 'res'. So I push towards the minimal amount of R code in the LaTex file possible, to achieve the desired result (embedding stats results in the LaTeX writeup). Does anyone have any experience with this approach? I'm just worried I might run into trouble further down the line, when I start really trying to load up and leverage this workflow.

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• Oracle University Partner Enablement Update (15th November)

  - by swalker

  Two new OPN Only Boot Camps available The following OPN Only Boot Camps have just become available: 3-day Oracle Exadata 11g Technical Boot Camp: Prepares you for becoming an Oracle Exadata 11g Certified Implementation Specialist Currently scheduled in Germany, UK Available for scheduling in all countries Live Virtual Class dates: 15-17 Feb 12 & 16-18 May 12 5-day Oracle BI Enterprise Edition 11g Implementation Boot Camp Currently scheduled in Sweden Available for scheduling in all countries View the complete OPN Only Boot Camp schedule. Certification News: Java SE 7 Be one of the first to get Java SE 7 certified. The following exams have recently become available for beta testing: Exam Code and Title Certification Track 1Z1-805 Upgrade to Java SE 7 Programmer (Beta until 17-Dec-11 ) Oracle Certified Professional, Java SE 7 Programmer 1Z1-803 Java SE 7 Programmer I (Beta until 17-Dec-11 ) Oracle Certified Associate, Java SE 7 Programmer A beta exam offers you two distinct advantages: you will be one of the first to get certified you pay a lower price. Beta exams can be taken at any Pearson VUE Testing Center. New CoursesOracle University released several new courses recently. Please click here to find out more about the new course titles. Are you looking for insight from the Oracle University experts? Check out these Oracle University Newsletters: Technology Newsletters Applications Newsletters Stay Connected to Oracle University: LinkedIn OracleMix Twitter Facebook

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