Is there a way to use html in an all-flash air app?
Merge flash site into one executable
Can HTML5 databases and localStorage be shared across subdomains? How to prevent windows from sleeping? Getting key with maximum value in dictionary? Since a few months, on one of the desktop Ubuntu 14.04 systems I use, CPU has regularly been going up to 80-100% for no apparent reason. htop would usually attribute responsability to file system processes, such as nemo or ntfs. To get CPU back down I would kill these process, which in some cases would lead to loss of access to the file system and a consequent restart.  Days ago I noticed that whenever this situation happened another process was always present also using high CPU: mediascanner-service-2.0. Some research lead me to  that simply advised its removal. So I did.  The end result has been unexpectedly positive: not only are the high CPU load episodes gone, the system is altogether much faster. The speed up of the Lens is dramatic: finding an application like Calc now takes 2 seconds at most when previously it took some 20 seconds. Finding a file takes now some 5 seconds, whereas before it took in the order of 30 seconds. Heavy programmes like Eclipse are starting up faster and workspaces are more fluid. There seems to be also an overall reduction in the frequency of disk access.  What is exactly this mediascanner2.0 package? Is it part of Unity 7 or a dependency that gets installed a posteriori? Is it possible to prevent its installation?  Update: following  it is possible to track this package down to indicator-session:  $ sudo aptitude why mediascanner2.0 i   indicator-session         Recommends indicator-applet (&gt;= 0.2) | indicator-renderer i A unity8                    Provides   indicator-renderer                             i A unity8                    Recommends unity-scope-mediascanner2                      pi  unity-scope-mediascanner2 Depends    mediascanner2.0                                  Apparently, mediascanner2.0 (and the Unity 8 shell) are part of the base 14.04 system. Left to answer is the exact function of this rogue package. "To your left" versus "on your left" Short version: In what circumstances is dd safe to use for copying data, safe meaning that there is no risk of corruption due to a partial read or write?  Long version — preamble: dd is often used to copy data, especially from or to a device (). It's sometimes attributed mystical properties of being able to access devices at a lower level than other tools (when in fact it's the device file that's doing the magic) — yet dd if=/dev/sda is the same thing as cat /dev/sda. dd is sometimes thought to be faster, but . Nonetheless, .  Problem: dd if=foo of=bar is not, in fact, the same as cat &lt;foo &gt;bar. On most unices¹, dd makes a single call to . (I find  fuzzy on what constitutes “reading an input block” in dd.) If read() returns a partial result (which, according to POSIX and other reference documents, it's allowed to unless the implementation documentation says otherwise), a partial block is copied. Exactly the same issue exists for write().  Observations: In practice, I've found that dd can cope with block devices and regular files, but that may just be that I haven't exercised it much. When it comes to pipes, it's not difficult to put dd at fault; for example try :  yes | dd of=out bs=1024k count=10   and check the size of the out file (it's likely to be well under 10MB).  Question: In what circumstances is dd safe to use for copying data? In other words, what conditions on the block sizes, on the implementation, on the file types, etc, can ensure that dd will copy all the data?  ( has a fullblock flag to tell it to call read() or write() in a loop so as to transfer a full block. So dd iflag=fullblock is always safe. My question is about the case when these flags (which don't exist on other implementations) are not used.)  ¹  I've checked on OpenBSD, GNU coreutils and BusyBox. Set origin to vertex in edit mode? I want to make the origin in edit mode at a vertex, but it keeps setting it to the last clicked-on face :( So now in edit mode the pivot is on the last clicked-on face ;( How to use dependency injection for Plugins/Blocks [\Drupal::formbuilder() and \Drupal::config()]? Can I use Facebook's fb:friend-selector in an iframe? How can Linux/Ubuntu be installed safely on ChromeBook? Is installing Ubuntu on my Chromebook potentially dangerous to anything on my Chromebook? I got it as a gift, so I don't want to destroy anything that is important on the laptop. Also, which is better for being able to safely install Ubuntu: ChrUbuntu or Crouton? I'm using the Samsung Chromebook 3 (as described by the quick-start manual). Does that make any other differences as well? How to check if an object is nullable? How do I check if a given object is nullable in other words how to implement the following method... bool IsNullableValueType(object o) {     ... }  I am looking for nullable value types. I didn't have reference types in mind. //Note: This is just a sample. The code has been simplified  //to fit in a post.  public class BoolContainer {     bool? myBool = true; }  var bc = new BoolContainer();  const BindingFlags bindingFlags = BindingFlags.Public                         | BindingFlags.NonPublic                         | BindingFlags.Instance                         ;   object obj; object o = (object)bc;  foreach (var fieldInfo in o.GetType().GetFields(bindingFlags)) {     obj = (object)fieldInfo.GetValue(o); }  obj now refers to an object of type bool (System.Boolean) with value equal to true. What I really wanted was an object of type Nullable&lt;bool&gt; So now as a work around I decided to check if o is nullable and create a nullable wrapper around obj. ensurepip is disabled in Debian/Ubuntu for the system python I am trying to make a virtual environment for the development of my Django application. The commando's which I am using:   vagrant@vagrant:/var/www/djangogirls$ python3 -m venv myvenv The virtual environment was not created successfully because ensurepip is not available.  On Debian/Ubuntu systems, you need to install the python3-venv package using the following command.      apt-get install python3-venv  You may need to use sudo with that command.  After installing the python3-venv package, recreate your virtual environment.  Failing command: ['/var/www/djangogirls/myvenv/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']   vagrant@vagrant:/var/www/djangogirls$ sudo apt-get install python3-venv Reading package lists... Done Building dependency tree        Reading state information... Done python3-venv is already the newest version (3.5.1-3). The following packages were automatically installed and are no longer required:   javascript-common libjs-jquery libjs-sphinxdoc libjs-underscore python-pbr python-pkg-resources   python-six python-stevedore python3-virtualenv virtualenv virtualenv-clone Use 'sudo apt autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 108 not upgraded.  vagrant@vagrant:/var/www/djangogirls$ python3 -m ensurepip ensurepip is disabled in Debian/Ubuntu for the system python.  Python modules for the system python are usually handled by dpkg and apt-get.      apt-get install python-&lt;module name&gt;  Install the python-pip package to use pip itself.  Using pip together with the system python might have unexpected results for any system installed module, so use it on your own risk, or make sure to only use it in virtual environments.   vagrant@vagrant:/var/www/djangogirls$ rm -r myvenv/   vagrant@vagrant:/var/www/djangogirls$ python3 -m venv myvenv The virtual environment was not created successfully because ensurepip is not available.  On Debian/Ubuntu systems, you need to install the python3-venv package using the following command.      apt-get install python3-venv  You may need to use sudo with that command.  After installing the python3-venv package, recreate your virtual environment.  Failing command: ['/var/www/djangogirls/myvenv/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']   As you can see, I am trying to make a myvenv, which cannot be created due to the python3-venv missing. I have already installed this, but the ensure pip is missing. After searching it seems that the system (Ubuntu 16.04) discourages the usage of the package. Could someone help me work around this problem? -ing vs -in' ending I wonder if the &quot;g&quot; in the -ing forms is pronounced. When I hear it it seems as if it's not pronounced sometimes or just slightly, though sometimes I've been told that I should pronounce &quot;g&quot; for example in &quot;meeting&quot; just to avoid saying &quot;mitten&quot;. So how should I pronounce &quot;-ing&quot;? Sometimes -ing is written in an informal way as -in' such as:  taking takin'  Is the letter &quot;g&quot; in each case pronounced differently? When a lattice is a lattice of open sets of some topological space? When a lattice $(L,\leqslant)$ is a lattice of open (or closed) sets of some topological space $(X,\tau)$? Which conditions have to be satisfied? We may assume that $X$ is $T_1$. OpenSSL remains vulnerable after update to 14.04 Back when the first discussion about deleted questions came up, I  building an official unofficial read-only archive for good deleted SE content.  I had a plan to build something like this:    Each link would point to a 1:1 scraped StackOverflow (or other SE network) deleted question (of course with a big fat disclaimer to the top, historical data, legal stuff, yada yada yada - and of course after asking Stack Exchange for permission, seeing as this would go far beyond what the CC license allows.)   I also registered a domain name that would (IMO) suit nicely, overflown.org.  However, when thinking about it, I realized doing this properly is a lot of work. You would have to:   build a scraper that can use a 10k+er's OpenID to fetch the deleted question (using the API or the data dump is for wusses. If we go through all this trouble, we want a historical document of what the site looked like "back then", right?) edit the page's DOM to remove dynamic elements, remove the "deleted" CSS classes, remove all the voting abilities from the buttons, and add the "this is historical data" disclaimer fetch - this is the biggest part and applies even if you use the API or data dump - all linked image resources (even those from imgur - even images used only in deleted questions could be purged one day), store them, and link them fetch all associated CSS style sheets and store them intelligently - preferably in a way that you don't fetch a copy of each file for each page (as normal page scrapers do), but also in a way that doesn't break if SE update their style sheets   long story short, I won't be in a position to build this any time in the foreseeable future - with old work, new work, and studying, I really have enough on my plate already.  Of course, if somebody else in the community feels like giving this a try, cool! But what I was really thinking is - maybe this is something Stack Exchange should build after all?   I know Jeff's  on these questions is used to be     @system I did think about a sweet place for them, in the bitbucket. – Jeff Atwood♦ Dec 29 '10 at 1:54   but come on. Think about it:     Future deletion discussions and changes in on-topicness policy would become way more relaxed because the popular and loved stuff has a place to go. A site for "overflown" questions could be curated by selected community members, who decide whether a contribution deserves to be archived or not.  A separate domain name (I'm happy to donate overflown.org for the purpose if desired) and the separate site design would create enough distance to the Stack Exchange network: it would be crystal clear that this read-only archive is for historical purposes only, and the existence of a question there does not mean you can ask something similar on one of the live sites. The pages would be 1:1 scrapes of what the site looked like at the time of the scraping, making it a general historical archive as well. These questions traditionally drive a lot of traffic. The possibility of continuing to show ads in the usual places would allow Stack Exchange to take advantage of that traffic without endangering content quality on the SE network. Hosting an archive like this is a job for a business, not us regular joes. A private project hosted by some community member can go down once they forget to pay a bill, or decide they want to password protect their private blog or photo album. The ideal place to host a site like this is at a company with professional admins that intends to stay online for a long time.    How about it? I've got a very small coefficient (-0.04) and R-squared (0.028) but a significant P value (&lt;0.0001). My question is:   Is my result still meaningful? How to interpret it?   The result is from a linear regression model in a big database in R.  The independent variable (B) has more than 200 values, whereas the dependent variable (A) has 13 values.   The potential correlation is below:   So, I ran a linear regression model between A and B and the result is:  &gt;mod1&lt;-lm(A~B)          Call:         lm(formula = A ~ B)           Residuals:              Min      1Q  Median      3Q     Max           -63.174 -11.816  -1.651  10.184 118.001            Coefficients:                        Estimate Std. Error t value Pr(&gt;|t|)              (Intercept) 132.274547   0.303723 435.511  &lt; 2e-16 ***          B            -0.036675   0.009052  -4.052 5.13e-05 ***          ---         Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1          Residual standard error: 18.52 on 8093 degrees of freedom            (123 observations deleted due to missingness)         Multiple R-squared:  0.002024,  Adjusted R-squared:  0.001901          F-statistic: 16.42 on 1 and 8093 DF,  p-value: 5.134e-05   As you can see, the coefficient of B is only -0.03 and adjusted R squared is only 0.1% but with a p value &lt;0.0001. Is my result reasonable and countable? Surely, my database is larger (8000 records) and even a very small effect size will show a significant P value. But how would I interpret this? Add CSS or JavaScript files to layout head from views or partial views Let $p,q,r$ be integers such that the symmetric sum of fractions $\dfrac{pq}{r}+\dfrac{qr}{p}+\dfrac{pr}{q}$ is an integer. Prove that each of the numbers: $\dfrac{pq}{r},\dfrac{qr}{p},\dfrac{pr}{q}$ is an integer. How to do this? Someone posted but deleted soon. Is there a word to describe indecisiveness between two things? Possible Duplicate:          Is there a word to describe indecisiveness, specifically between two things? I tried online dictionaries, but did not find anything.