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Unearthing secrets of new neurons
Heather Frank, then a senior majoring in neuroscience at Colgate University, explains studies on neurogenesis that she worked on during an internship in the ...
User Comments
National Institute of Mental Health (NIMH)
commented
on 21 Jul 2014
Over the past decade, evidence has emerged suggesting that the birth of new
neurons in the adult brain’s memory hub, or hippocampus, may play a key
role in the action of antidepressants, resilience to stress, the benefits
of exercise and enriched environments, and preventing memory loss. NIMH
researchers are following up leads: //1.usa.gov/1rvQILJ
Darla O.
commented
on 13 Sep 2014
Do "The Secret of the Rats of NIMH" know? lol JK
Rails on Windows, Part 3/4: MySQL2 gem
Part 3 in a 4 part beginner level series covering a Windows 7 installation of Ruby on Rails 4 with the MySQL2 gem. Part 3 focuses on installing the mysql2 gem ...
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stephen burke
commented
on 05 Feb 2014
When writing the test.rb Do I need to change the "localhost"? How is that
configured? Do I need to change the apache/mysql config settings within
xampp?
I am getting the error:
C:/Ruby200/lib/ruby/gems/2.0.0/gems/mysql2-0.3.13/lib/mysql2/client.rb:58:in
`connect': Can't connect to MySQL server on
'localhost' (10061) (Mysql2::Error)
from
C:/Ruby200/lib/ruby/gems/2.0.0/gems/mysql2-0.3.13/lib/mysql2/client.rb:58:in
`initialize'
from test.rb:3:in `new'
from test.rb:3:in `'
Jonathan MacDonald
commented
on 06 Feb 2014
+stephen burke awesome -- that's an interesting point. I'll be sure to mention it when I update these videos.
stephen burke
commented
on 06 Feb 2014
no worries I figured it out! had to change the "localhost" to 127.0.0.1
bere georgiana
commented
on 04 Feb 2014
If I made a mistake during the installation, will it work if I repeat the
steps from the very beginning?
Jonathan MacDonald
commented
on 04 Feb 2014
To start over, you'll want to uninstall ruby. Then, make sure to remove the c:\Ruby200 directory as well as c:\devkit. That should get you back to the beginning. However, if you're encountering an error, let me know, I'm happy to troubleshoot with you.
aaron moskowitz
commented
on 03 Feb 2014
I guess that everything is fine up to 6:31 in your video.
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\aaron>cd c:\dev
c:\dev>mysql --user root -p
'mysql' is not recognized as an internal or external command,
operable program or batch file.
c:\dev>
Jonathan MacDonald
commented
on 03 Feb 2014
Hey +aaron moskowitz, this video assumes you have MySQL installed. I've made instructions on doing so here: //youtu.be/-cHS4HoEFV8
aaron moskowitz
commented
on 03 Feb 2014
Johnathan, thank you so much. I finally feel like I am moving forward with
this series. By any chance, could you elaborate on the part where we set
and establish the mysql password that you use when you are testing the
installation here? Thanks.
aaron moskowitz
commented
on 03 Feb 2014
+Jonathan MacDonald Thanks for your help. I will go through this video this evening.
Jonathan MacDonald
commented
on 03 Feb 2014
You're most welcome Aaron! Not sure if you saw my reply earlier but I have a link in description for the MySQL installation instructions. Good luck! If you have any questions, don't hesitate to ask.
greatsea
commented
on 01 Feb 2014
I just get 4 or 5 blank lines in cmd prompt when I run for show databases
Jonathan MacDonald
commented
on 01 Feb 2014
Do you mind copy and pasting the code here? You might want to remove your password from the code.
Danny Kataw
commented
on 28 Jan 2014
I get an error a that last part when I try to run the .rb file
C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:53:in
`require': c
annot load such file -- ./mysql2 (LoadError)
from
C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:53:in
`require'
from Test.rb:1:in `'
I had no trouble until this step.
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw sounds good -- that should work. Just send me a message and we'll continue on here.
Danny Kataw
commented
on 29 Jan 2014
Sure can we set up like a time because for the rest of the night I have to get off the computer and hit the books. I can do Thursday 7:30
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw you're very close to getting Rails installed. I'd recommend persevering (especially with me willing to walk you through this). If you want to try something else, give it a shot. If you want to continue, I'll do my best to help you.
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald If i use this website to download a package with everything in it. //railsinstaller.org/en Would everything be setup for me ready to use or would I have to manually do some of the setting up
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw ok, what I mean by directory is also referred to as a folder. If you click on your folder icon in the taskbar, you should be able to find c:. Off the root of c: should be a folder called 'mysql-connector-c-noinstall-6.0.2-win32' In an earlier screenshot, I could see it partially. Does that folder exist?
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald It does not exist. //imgur.com/dM69sy6
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw ok, I assume you mean where I walk through adding the mysql bin directory to the PATH? You might have an issue there but the error you're getting now isn't related.Can you confirm this directory exists? c:\mysql-connector-c-noinstall-6.0.2-win32 (I can almost see it in your screenshot but can't confirm completely that the directory name is correct. As well, I need to see the contents of the directory.)
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald Does it have anything to do with my Path being C;/Ruby200/bin in my computer settings. They step where you go into the computer properties and add the line you copy and past in the path. I pasted it in the environmental variables and left the path at C:\Ruby/bin. Take a look //imgur.com/q8ZYfuY
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald after i tried to install the first command
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw thanks. Ok, so, it looks like it's having trouble finding the mysql connector. Is it for sure installed here? c:\mysql-connector-c-noinstall-6.0.2-win32If that directory exists, can you get me a screenshot of it and its contents?
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald This is my result //imgur.com/30wUwyf
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw you know, the step that you're going through there, I'm going to skip when I update the videos. So, yeah, lets skip this part. Run the first command that you see here: https://gist.github.com/lakelse/8115205If it says that it installed, double check by running 'gem list' to confirm that you see 'mysql2' listed.
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald In the step where you do the git checkout 0.3.13. I don't get the entire paragraph you go a get 1 line of text saying. HEAD is now at b5ab12c... bump version for 0.3.13 release
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw looks good. I think you might have missed the step of installing the gem. Or, if you did run the command, it didn't install. You should see 'mysql2' in the gem list.
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald Here is picture that might help. //imgur.com/q8ZYfuY
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw ok, it looks like the gem didn't get installed. Try running the command here: https://gist.github.com/lakelse/18d918a0530da24c162c (change the path to the mysql connector if it's different)Let me know how it goes. If that doesn't work, we'll try something different. Note the instructions are a bit dated and should update them. I'm happy to walk you through this though.
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald Shows me Local Gems. things like 'bigdecimal' , 'io-console', 'json', 'minitest', 'psych', 'rake', 'rdoc', 'test-unit'. Minus the quotes,
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw thanks. When you type 'gem list' (minus the quotes) do you see mysql2 listed?
Danny Kataw
commented
on 29 Jan 2014
+Jonathan MacDonald require 'mysql2'client = Mysql2::Client.new(host: 'localhost', username: 'root', password: 'adiga')sql = 'select now() as timestamp'result = client.query(sql)result.each do |row| puts row['timestamp']end
Jonathan MacDonald
commented
on 29 Jan 2014
+Danny Kataw from the error you've sent, it indicates a problem with the 'require' line in your code. Can you paste it here so I can take a look?
Danny Kataw
commented
on 28 Jan 2014
When you show the step in when your adding the path. One of my existing paths is C:\Ruby200/bin. that is my only path
Jonathan MacDonald
commented
on 28 Jan 2014
Hey Danny, can you copy and paste the line that has the require?
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