SPSS-independent-sample-t-test
Bonferroni adjustment in SPSS - what does it do?
Should spam posts be edited? Story with multiple 'third planet' races I'm looking for the name and author of a novel (or possibly novella). I first read this in the seventies, and might be older than that. It might have been written for teenagers.  The story takes place on a planet inhabited by a primitive humanoid race, roughly stone age if I remember rightly. Visiting this planet is a small team from a more advanced race, also humanoid and with spacefaring technology (obviously!). They are either there to help or observe, no nefarious purposes. I think they are avoiding contact with the primitives, at least initially. It's explicitly mentioned that the planet they are visiting is the third one of a medium sized star, just like their own homeworld. Also orbiting round the planet is an even more advanced race, using high tech to remain hidden from both the others. They are observing the whole situation, and again its mentioned that this is a 'third planet', like their own homeworld.  I'm a little bit hazy on the rest of the plot, but I think the super-advanced race end up revealing themselves, even though they are not supposed to.  The story is told from the viewpoints of both the second and third races (maybe also the first, I forget)  EDIT: For the record it turns out my recollection was faulty, and the second race are indeed coming to the planet for nefarious purposes. And the planet is at the medieval stage, not stone age. At the end of Billions, Season 3, Episode 9, Grigor Andolov (John Malkovich) tells a story to Bobby Axelrod (Damian Lewis) about the Christmas market in Moscow. He asks a question about what happened to a boy:  Andolov: Many years ago, I was walking along the Moskva Christmas market. You ever seen Moskva Christmas market? Always a sense of good cheer, even during the lean years. I think it was the wine. They serve warm wine with the spices in it... cinnamon and... I was waiting on the line — everyone was always waiting on the line — and finally I got my cup, I turn, and there was this little boy. Runny nose. He looking at me so desirous of my cup of this warm, warm wine that I give him a sip. He stares at me with such a gratitude. And then I notice his mother. Plump breasts. She must have known someone. So I give him my cup of wine. And I take his mother away from the square. Behind the soldiers. And after, I leave her for the soldiers. And I walked back, and this little boy is staring at me with his greedy drunken eyes. Do you know what happened to him? Axelrod: No. Andolov: I always ask. No one ever knows.  What is the real meaning of this story? And how is it connected to the Axelrod – Andolov relationship? How to configure lightdm to allow manual logins in Ubuntu 14.04 I used to modify /etc/lightdm/lightdm.conf, adding the line greeter-show-manual-login=true, in order to allow login for hidden users and root.  Now I've just installed the new Ubuntu 14.04 and the file lightdm.conf is no longer located in /etc/lightdm. It's in /etc/init and has been totally modified.  How can I force lightdm login screen to show a field to input a login name? So far I've been using public void run() {} methods to execute my code in Java. When/why might one want to use main() or init() instead of run()? I always thought of current as the time derivative of charge, $\frac{dq}{dt}$. However, I found out recently that it is the ampere that is the base unit and not the coulomb. Why is this? It seems to me that charge can exist without current, but current cannot exist without charge. So the logical choice for a base unit would be the coulomb. Right? Is it possible to match encrypted documents using user-defined search terms? Suppose I am storing a number of encrypted documents in a database. I would like to make it possible to identify the subset of documents whose contents match user-specified search terms without a) maintaining a plaintext index or b) decrypting documents on the fly. Is there any way to accomplish this securely?  By the same token, I'm wondering if a collection of encrypted documents can be sorted according to an encrypted attribute (e.g., document title) without first decrypting all attribute values. I thought I remembered hearing the food agency  say that you should never reheat chicken meat after the initial cooking. However, I cannot find the statement of it anymore. Now I'm starting to suspect my memory.  Could this statement be true?  Is it unsafe to reheat chicken? joomla 2.5 in module install.mysql.utf8.sql dosent work How to record how much time user has spent on my node? I want to record the time a user has spent on my particular node so I could show a pop up to the user to register once the user has read 3 article. But the user must have spent at least 30 seconds on each node.   There is the  module available, but I wonder if I can merge it with another (custom) module I have created (which records the number of nodes user have visited)? Let's say I have a video running in an application.  If I hover my mouse over the taskbar, it shows a little popup windows that diplays the video  (aero peek).  Sometimes I'm running a maximized window and I want to have this little screen always popped up.  (Kind've like when your using the TV Guide menu, you still see a little clip of the video) I've done numerous WP sites, written my own plugins, run my own server, etc etc.  But I have not seen this before. I just installed a fresh 4.7.1 and installed the  and all its plugins.  When I went to add media files, I got:  Maximum upload file size: 2 KB.   I deactivated all plugins one by one...no dice. My PHP memory limit is set to 256MB for this installation via wp_config.php.  Googling the 2 KB limit turned up no results.   Anyone seen this before or know how to fix this limit? How to use SQLDeveloper to connect to embedded Derby database Recursive glob? I'd like to write something like this:  $ ls **.py   in order to get all .py filenames, recursively walking a directory hierarchy.  Even if there are .py files to find, the shell (bash) gives this output:  ls: cannot access **.py: No such file or directory   Any way to do what I want?  EDIT: I'd like to specify that I'm not interested in the specific case of ls, but the question is about the glob syntax. Why does "start winword" work but just "winword" doesn't? Assume Microsoft Office is installed. Consider the following batch file:  REM the following line successfully launches Microsoft Word start winword  REM none of the following commands work to launch Microsoft Word winword winword.exe winword.com winword.bat winword.cmd winword.vbs winword.vbe winword.js winword.jse winword.wsf winword.wsh winword.msc   What is it about the "start" instruction that allows the launching of Microsoft Word using the name "winword"?  My curiosity stems from my interest in the mechanics of the "start" verb - I don't need suggestions on other ways to start Microsoft Office.  Please don't suggest that I add the Microsoft Office directory to my PATH environment variable - I know what that would do.    How is start finding "winword" when cmd cannot find it directly? when EditText is empty and click calculateButton, app crashes Citing a range of papers using numeric keys as in \cite{a, b, c} -> [1-3] How can I cite a range of papers, the output is a range of numbers, instead of a list of numbers? In other words, when I type  ... some dummy text here is due to me \cite{me1, me2, me3, me4} ...   I want the output to be     ... some dummy text here is due to me [3-6] ...   instead of     ... some dummy text here is due to me [3.4.5.6] ...   (I use LaTeX, and am currently using the amsart class and whatever it includes. But I am open to other suggestions.) This question has come up    ( ), but I'm finding the answers to be generally incomplete. The general question is "Why does/doesn't my job get killed when I exit/kill ssh?", and here's what I've found.  The first question is:  How general is the following information?  The following seems to be true for modern Debian linux, but I am missing some bits; and what do others need to know?   All child processes, backgrounded or not of a shell opened over an ssh connection are killed with SIGHUP when the ssh connection is closed only if the huponexit option is set: run shopt huponexit to see if this is true. If huponexit is true, then you can use nohup or disown to dissociate the process from the shell so it does not get killed when you exit.  Or, run things with screen. If huponexit is false, which is the default on at least some linuxes these days, then backgrounded jobs will not be killed on normal logout. But even if huponexit is false, then if the ssh connection gets killed, or drops (different than normal logout), then backgrounded processes will still get killed.  This can be avoided by disown or nohup as in (2). There is some distinction between (a) processes whose parent process is the terminal and (b) processes that have stdin, stdout, or stderr .  I don't know what happens to processes that are (a) and not (b), or vice versa.   Final question: How can I avoid behavior (3)?  In other words, by default in Debian backgrounded processes run along merrily by themselves after logout but not after the ssh connection is killed.  I'd like the same thing to happen to processes regardless of whether the connection was closed normally or killed.  Or, is this a bad idea?  Edit: Another, important way to keep jobs of being killed, that works (?) in either case is to run them through .  But, the question is more about understanding when things get killed and when they don't: sometimes people want the jobs to be killed on logout, for instance.  More threads: -  -  -  -  -  -  -  - How to put a brace on the right, not left, to group cases? How can I get a brace on the right, not the left, to group cases, using cases? (I know actual cases look better with the brace on the left, but the items I need to group are not literally cases. They are a set of steps in an algorithm which I want to consider as an item.)  The following puts the brace on the left. All I need to do is to flip it to the right.  \begin{align} \begin{cases} a&amp;=bbb\\ c&amp;=ddddddd\\ e&amp;=ffffffffff \end{cases} \end{align}   Thanks for any help with this! If $\alpha$ is an algebraic element and $L \subset K$ are both field, does the polynomial ring $L[\alpha]$ is also a field?  I am trying to prove that the ring of fraction $L(\alpha)$ is equal to $L[\alpha]$. To do this, I use an exercise done in class : Let $K$ a field, $\alpha \in K$ and $L$ a subfield of $K$. Then $L(\alpha)$ is the smallest subfield of $K$ containing $L$ and $\alpha$.  Is anyone could help me?