Definite Article in front of the word 'better'
"the better" vs "the best" of two players
OpenID support for Ruby on Rails application What is current state of the art for enabling OpenID login in Ruby on Rails applications?  This is a community wiki with up-to-date answers to this question. Authlogic The most advanced authentication solution seems to be .  It supports OpenID with .  It supports Rails 4 and 3. Rails 2 is supported in the rails2 branch. You may want to watch  (and the ). There is a sample application called . Devise Devise is flexible authentication framework for Rails.  It supports OpenID with . restful_authentication Another authentication library of choice is  Rails plugin.  Seems like you also need to install  plugin. You may want to watch (old, circa 2007) . Ruby OpenID Raw support for OpenID protocol is handled by  library. proving logical equivalence $(P \leftrightarrow Q) \equiv (P \wedge Q) \vee (\neg P \wedge \neg Q)$ How do we know Dark Matter isn't simply Neutrinos? Trying to find a book about kids with 'sunguns' revolting against alien overlords I'm trying to identify a book (or possibly a series, as I seem to recall reading a sequel which still left the story unfinished).  I read the book or books in the early 90's and had picked them up from a jumble sale at school, so they were probably published in the 80's or possibly 70's. I guess you would class them as YA fiction, though that wasn't really such a thing back then...  As I recall the story began with a slave transport craft crash landing on an alien world, with only a handful of teenage and pre-teen humans surviving. They scraped together what they could, including a couple of functional 'sunguns' (basically, laser rifles) and began a low level guerilla rebellion against the alien race that were using humanity as slave labour on the planet.  I've googled 'sungun' repeatedly, thinking that this should be the best way of finding the story but the references that come up are all for other stories or conspiracy technologies.  Anyone got any vague recollections of a book or series like this? Is it acceptable to insult god in a user profile? Like always I hang around in Stack Overflow's chatrooms. Today, someone posted a link to his new "reloaded" user profile.  Along the lines I read in Arabic "god is a pig". So I asked him to remove it:     Me: I have a lot of respect towards you because of your knowledge but what you wrote there in Arabic is offensive. Could you remove it please?   OP: if it were in English, would it be equally offensive?   I will write it in Dutch because you ask it so kindly.   Me: yeah, I mean what's your goal? You're just seeding hatred   OP: It is an experiment.   After that, the user changed it to Dutch.  My question is: are such statements acceptable by Stack Exchange's standards? If not, should I flag one of his posts like stated ? If yes, could you state why?  My answers to possible questions:   This happened on SO, why don't you post it on MSO?   This happened on SO but I think it's applicable to all SE sites.  Why didn't you link the user or the chat conversation?   I want the user to remain anonymous unless he or she chooses to reveal him/her self. I will give the user a link to this question  Why do you care?   I find it offensive, not only to my religion but to any religion that believes in god. I posted this question to know what you guys and girls think about this. I live by the rules, so if it's acceptable by SE then so be it and I won't bother you again.  If you don't like it then move on.   I know that this is not a mosque/church/temple and that swearing  to a certain degree. But I don't see the point in insulting god, a religion or a race in a public profile. More over, it's not even built on arguments. What are the differences between executing shell scripts using "source file.sh", "./file.sh", "sh file.sh", ". ./file.sh"? Have a look at the code:  #!/bin/bash read -p "Eneter 1 for UID and 2 for LOGNAME" choice if [ $choice -eq 1 ] then         read -p "Enter UID:  " uid         logname=`cat /etc/passwd | grep $uid | cut -f1 -d:` else         read -p "Enter Logname:  " logname fi not=`ps -au$logname | grep -c bash` echo  "The number of terminals opened by $logname are $not"   This code is used to find out the number of terminals opened by a user on the same PC. Now there are two users logged on, say x and y. I am currently logged in as y and there are 3 terminals open in user x. If I execute this code in y using different ways as mentioned above the results are :  $ ./file.sh The number of terminals opened by x are 3  $ bash file.sh The number of terminals opened by x are 5  $ sh file.sh The number of terminals opened by x are 3  $ source file.sh The number of terminals opened by x are 4  $ . ./file.sh The number of terminals opened by x are 4   Note: I passed 1 and uid 1000 to all these executables.  Now can you please explain the differences among all these? I'm planning to visit a summer school in the Schengen zone. What kind of visa should I apply for? I will be attending a summer school which will last 10 days.  I want to know: for applying for a Schengen visa, is the purpose of my trip considered as touristic or study? Something along the lines of 'hero of the occasion', but specifically for birthday? If there isn't, how would you otherwise say that?  ('the subject of birthday party', 'the hero of this birthday party', 'birthday's hero' all sound stupid somehow). I'm trying to understand a "subproof" of the divisor Master Theorem (Cormen et al., Introduction to Algorithms, page 99), and in some point they state:  $$\Large a^{\log_b n} = n^{\log_b a}$$  where $a\geq 1$, $b &gt; 1$ and $n = b^i$, for some $i$. That is, $n \in \{1, b, b^2, ...\}$  I would appreciate a simple explanation of this equality (just OK for a CS undergraduate). What are the differences between 32-bit and 64-bit, and which should I choose? What is the difference between 32-bit and 64-bit Ubuntu? I've heard the 64-bit platform performs better and can detect more than 4GB of RAM. Also, while some apps haven't ported to 64-bit yet, ia32-libs lets a 64-bit machine run them.  If so, why not promote 64-bit over 32-bit? What are all the marriages and child relationships following the final chapter? In the last chapter of Naruto, some characters got married, and some of them had kids. What is the entire husband-wife-kids set? Why does $a^n - b^n$ never divide $a^n + b^n$? I've searched for multiple forums for this questions and have seen different answers but so far, nothing have worked yet even from the ones I've seen here.  I want to extract a single file from a tar to a different directory.  I've tried this:  tar xvf file.tar -C /home/dir/ filename   or this:  tar -x filename -f file.tar -C /home/dir   But got these errors respectively:  x filename, 14826 bytes, 29 media blocks. File -C not present in the archive. File /home/dir not present in the archive.   and:  tar: /dev/rmt0: A file or directory in the path name does not exist.   The first extracted the file but in the same directory, not to the folder I wanted. PostgreSQL CPU 100% after configure Wal log shipping hot standby I have configured Hight Avaliabily WAL Log Shipping Hot Standby (SSL) with one node. But after I configure, both hosts (primary and secondary) take 100% CPU usage. The most strange is because I have only one database called &quot;TESTE&quot; with one table called &quot;EXAMPLE&quot; to check if replication was OK. The replication worked perfectly but I don't understand why my CPU takes 100% usage because I don't have any application connect on my cluster. I ran HTOP command and get this results: Image 1 - Primary Server HTOP Info  Image 2 - Secondary Server HTOP info  S.O. version: No LSB modules are available. Distributor ID: Debian Description:    Debian GNU/Linux 10 (buster) Release:        10 Codename:       buster  PostgreSQL version: postgres (PostgreSQL) 12.3 (Debian 12.3-1.pgdg100+1)  Primary server postgres.conf file: max_connections = 100 SSL = on shared_buffers = 2GB work_mem = 10485kb maintenance_work_mem = 512MB dynamic_shared_memory_type = posix effective_io_concurrency = 200 max_worker_processes = 4 max_parallel_maintenance_workers = 2 max_parallel_workers_per_gather = 2 max_parallel_workers = 4 wal_level = replica wal_buffers = 16MB max_wal_size = 200MB min_wal_size = 80MB checkpoint_completion_target = 0.7 archive_mode = on max_wal_senders = 3 wal_keep_segments = 8 hot_standby = on hot_standby_feedback = on random_page_cost = 1.1 effective_cache_size = 6GB default_statistics_target = 100  pg_stat_activity info:  pg_stat_archiver info:  pg_stat_replication info:  If I stop postgres service in both servers the CPU still has 100% usage. Anyone can help me? The class will be over in 10 minutes. The class will be over after 10 minutes.  I know the first is correct but why? Java: how do I check if a Date is within a certain range? Is there a word for “not greedy”? The antonym of “greedy” is “generous”. Is there a word for “not greedy” (one who is content with what he has)? How to tell whether a field is required or not in Apex by describe fields How to partition an encrypted disk Query Activity for ORDER BY xxx DESC LIMIT