|
Acetylides from Alkynes, And Substitution Reactions of Acetylides
-
www.masterorganicchemistry.com
-
13 years ago
-
eng
Alkylation of acetylides Terminal alkynes have unusually acidic C–H bonds (pKa 25). Treatment with a strong base such as sodium amide (NaNH2) gives an acetylide,
|
|
In the past I have written one article about women and equality, A Crying Shame . I am quite proud of that article. So much so, in fact, that unlike many of the other topics I rehash here, I have felt no need to write anything more on the subject. I did feel pushed to at least mention the article linked at the head of this post, however, especially after listening to what I seem to recall was episode #114 of Back to Work a few weeks ago.....
|
|
How I made a simple Business Model Canvas for geekar
-
myownfortune.wordpress.com
-
13 years ago
-
eng
The power of simple python scripting is one of the themes of this blog, and now I can show a great practical example. I needed to create something that looks like this: This is a simple HTML table with some CSS. But trying to write it in HTML would result in a lot of copy-pasting […]
|
|
I started exercising my idea muscles a few days ago. Every day I think of 10 startup ideas and develop one into a business model. Some will be published here. Lets begin with the first example – geekar, an Augmented Reality-enhanced retail, in the most early-adopter industry I know: geeks. geekar will sell comic books, […]
|
|
When I first came across this article a few weeks ago while browsing Less Wrong, Eliezer Yudkowsky’s chronicle struck me as the perfect example illustrating the importance of a number of different things, primary of which was the significance of asking the right question. Alongside this topic the author also touched on the value of keeping an open mind, possessing a willingness to abandon pre-conceived notions when presented with new eviden..
|
|
Previously on this blog, we’ve covered two major kinds of algebraic objects: the vector space and the group. There are at least two more fundamental algebraic objects every mathematician should something know about. The first, and the focus of this primer, is the ring. The second, which we’ve mentioned briefly in passing on this blog, is the field. There are a few others important to the pure mathematician, such as the $ R$-module (here $ R..
|
|
Previously on this blog, we’ve covered two major kinds of algebraic objects: the vector space and the group. There are at least two more fundamental algebraic objects every mathematician should something know about. The first, and the focus of this primer, is the ring. The second, which we’ve mentioned briefly in passing on this blog, is the field. There are a few others important to the pure mathematician, such as the $ R$-module (here $ R..
|
|
Previously on this blog, we’ve covered two major kinds of algebraic objects: the vector space and the group. There are at least two more fundamental algebraic objects every mathematician should something know about. The first, and the focus of this primer, is the ring. The second, which we’ve mentioned briefly in passing on this blog, is the field. There are a few others important to the pure mathematician, such as the $ R$-module (here $ R..
|
|
In the mid-1800s, there were thousands of unique varieties of apples in the United States, some of the most astounding diversity ever developed in a food crop. Then industrial agriculture crushed that world. The apple industry settled on a handful of varieties to promote worldwide, and the rest were forgotten. They became commercially extinct — but not quite biologically extinct.” A nice change of pace from the usual; a delightful article..
|
|
Malgrado la giovane età Source Code Pro di Adobe domina incontrastato, col più classico Consolas come sua regina. Inconsolata-g e Monaco seguono a distanza mentre il mio preferito, Menlo, è tristemente indietro: What Are the Best Programming Fonts?
|
|
The web is built of links, of pages linking to other resources on the internet. But making those links manually is tedious. This is another area where modern inline editors could do better. Yesterday on Hacker News, there was a thread about Wikidata , Wikimedia Foundation’s new knowledge base. This comment struck me especially: I was using Wikipedia the other day and it occurred to me how primitive it is to have all the inner lin....
|
|
How would you start your own talk show? The cool thing about creating a talk show is that it costs nothing other that time and a few opinions.
|
|
Jenny Lustig is an alumni of, and is currently a front-end mentor at The Starter League, a web development school in Chicago.
|
|
The web is built of links, of pages linking to other resources on the internet. But making those links manually is tedious. This is another area where modern inline editors could do better. Yesterday on Hacker News, there was a thread about Wikidata , Wikimedia Foundation’s new knowledge base. This comment struck me especially: I was using Wikipedia the other day and it occurred to me how primitive it is to have all the inner lin....
|
|
The web is built of links, of pages linking to other resources on the internet. But making those links manually is tedious. This is another area where modern inline editors could do better. Yesterday on Hacker News, there was a thread about Wikidata , Wikimedia Foundation’s new knowledge base. This comment struck me especially: I was using Wikipedia the other day and it occurred to me how primitive it is to have all the inner lin....
|
|
The web is built of links, of pages linking to other resources on the internet. But making those links manually is tedious. This is another area where modern inline editors could do better. Yesterday on Hacker News, there was a thread about Wikidata , Wikimedia Foundation’s new knowledge base. This comment struck me especially: I was using Wikipedia the other day and it occurred to me how primitive it is to have all the inner lin....
|
|
When jQuery first came out it was a godsend. For most developers, it remains the same indispensable tool without which anything more than mundane cookie management, if even that, would prove an insurmountable obstacle. In the afore linked article along with his companion piece encourage developers to rely more heavily on Javascript’s native functions , Chris Love makes the compelling case against what has become the de-facto Javascript fra..
|
|
CX – Conference Experience (Facilitating Communication)
-
www.craigkerstiens.com
-
13 years ago
-
eng
Following up on my earlier post about CX or Conference Experience – I’m going to dig in a bit on how you get good conversation to happen. In the past two years I’ve been to nearly 20 conferences, I’ve been to conferences with great talks, with great parties, with great swag, and hands down my favorite conferences have always been a result of great conversation. With the number of talks that are recorded and immediately available online afte....
|
|
Following up on my earlier post about CX or Conference Experience – I’m going to dig in a bit on getting the right people there. There’s a lot of different ways to approach this from having a good ratio of: Designers to Developers Females to Males Noobs to well known community members Overall lack of suits While this is by no means a how we can solve all of the above problems, theres some bas Talks Quality talks are obviously im....
|
|
CX – Conference Experience (Facilitating Communication)
-
www.craigkerstiens.com
-
13 years ago
-
eng
Following up on my earlier post about CX or Conference Experience – I’m going to dig in a bit on how you get good conversation to happen. In the past two years I’ve been to nearly 20 conferences, I’ve been to conferences with great talks, with great parties, with great swag, and hands down my favorite conferences have always been a result of great conversation. With the number of talks that are recorded and immediately available online afte....
|
|
Following up on my earlier post about CX or Conference Experience – I’m going to dig in a bit on getting the right people there. There’s a lot of different ways to approach this from having a good ratio of: Designers to Developers Females to Males Noobs to well known community members Overall lack of suits While this is by no means a how we can solve all of the above problems, theres some bas Talks Quality talks are obviously im....
|
|
Web frameworks are great, don't get me wrong here. They provide a structure and consistency across projects that will transcend developers over the life of a system while dramatically simplifying the code base amongst other wonderful side effects. But what's the downside?
|
|
As a comparatively new blogger I have done my fair share of self-promotion amongst the established writers I respect and strive to emulate, more than once recommending something I wrote by excusing my blatant plea for attention with the words, “I think you will like this” or some other permutation of the phrase. And each time I do I genuinely believe that John Siracusa might have found some interest in my argument for greater gesture suppor..
|
|
Testing emails can sometimes be a bit challenging. smtp4dev is a small program that intercepts all received emails so you can quickly send…
|
|
This piece from the New York Times touches on a subject that I’m passionate about - the challenges of hiring good people. Deep into it, it mentions that: “…the most proven method, Dr. Lewin said, is a referral from someone already working there. Current employees know the culture, he said, and have their reputations and their work environment on the line.” The big data thing is a cool, tech solution, but really it’s referrals that ..
|
|
I'm going to try using MathJax for displaying LaTeX maths in my blog posts. It seems to work pretty well. The only significant problem is the flash of unrendered latex code for 200ms or so when viewing a post. $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$
|
|
The (Berkeley) sockets API should really have a function call to tell the implementation to do a local flush if possible, e.g. to stop buffering data and send the current packet. Let's say you are writing a webserver. Your webserver has received an HTTP request. You have read it in, decided on what page to return in response, and are now piecing the page together out of pieces of data and HTML. After each bit of HTML has been created y....
|
|
Try my flickr date fixer app ! So the startup/solopreneur community really likes little mantras and axioms. I wrote a little web application that follows mantras such as: solve a problem focus on a small problem in a niche market scratch your own itch build the minimum viable product and ship quickly I have built and released a web app that focuses on an itch I have and may serve a small niche market consisting of only myself, but wit....
|
|
I'm obsessed with performance tuning. It's an itch that can never fully be scratched. A sickness that can never be cured. Here's the story of how I caught the bug.
|
|
A couple of weekends ago I had the great opportunity to attend lessconf . It was an all around great conference, and as a result of the greatness I ended up having a conversation with a few people around conference experience. I must give much of the credit to Swift , as he mentioned he’d already been thinking alot about this since Waza . In general it feels like there’s a few key themes that any conference should focus on, then a lot of....
|
|
A couple of weekends ago I had the great opportunity to attend lessconf . It was an all around great conference, and as a result of the greatness I ended up having a conversation with a few people around conference experience. I must give much of the credit to Swift , as he mentioned he’d already been thinking alot about this since Waza . In general it feels like there’s a few key themes that any conference should focus on, then a lot of....
|
|
I’ve been meaning to consolidate my personal websites onto this domain for a long, long time. My original personal website, dflock.co.uk , started in the late nineties - and has been getting a bit long in the tooth of late. Figure 1. Static text files - the gift that keeps on giving. That site has been up, looking mostly like that, for ~15 years - with zero maintenance or downtime. Nice to know it’s still valid CSS 1.0 :) When I c....
|
|
Today I tested the new plugin for nginx developed Google: ngx_pagespeed . It’s the equivalent for nginx to apache’s mod_pagespeed. Installation Just go to the github page for ngx_pagespeed and the follow the instructions there.I used the alpha-r2748-build. Sidenote: With it I ran into a problem with the wp-admin dashboard when trying to write this post. If you’re interested, check out the issue on Github. Test scenario For testi....
|
|
As I tweaked some last bits of code and added a few comments here and there, I realized I was getting excited. This project I had been working on for the last few days was almost done. I was happy about the code I had written and started prepping for a code review. My co-workers had been asking how it's going and wanted to give me feedback, so I pushed and deployed my changes to a staging server. What immediately followed was a humbling exp..
|
|
As I tweaked some last bits of code and added a few comments here and there, I realized I was getting excited. This project I had been working on for the last few days was almost done. I was happy about the code I had written and started prepping for a code review. My co-workers had been asking how it's going and wanted to give me feedback, so I pushed and deployed my changes to a staging server. What immediately followed was a humbling exp..
|
|
I had the opportunity to visit the class of one of my legendary former professors yesterday and got to share a classic story about him...the time he gave us an impossible assignment.
|
|
I feel almost guilty when I post non game or tech-related posts to this blog because I know the majority of people who come here tend to do so for the game/Impact/JS posts. However, this is a personal site and I do more than sit at a keyboard all day, so posts about running, Sweden, travel, etc are going to happen. Running and exercise is probably the category that’ll be popping up the most (after games) over the next few months as Stockhol..
|
|
In case you upgrade your CentOS 6.x box to version 6.4, the shorewall service might complain. With a scary message: ERROR: Your kernel/iptables do not include state match support. No version of Shorewall will run on this system This is selinux at work, and the problem can easily be solved by running: # restorecon -Rv /sbin Thanks shorewall-users and Happy hacking, James You can hire James and his team at m9rx..
|
|
In case you upgrade your CentOS 6.x box to version 6.4, the shorewall service might complain. With a scary message: ERROR: Your kernel/iptables do not include state match support. No version of Shorewall will run on this system This is selinux at work, and the problem can easily be solved by running: # restorecon -Rv /sbin Thanks shorewall-users and Happy hacking, James You can hire James and his team at m9rx..
|
|
Late last year, six women crowded in to a Mitte cafe booth and listened to Berlin Geekettes founder Jess Erickson share her idea: Berlin’s first all-women hackathon. With SoundCloud’s Amelie Anglade the then newly-appointed the Berlin Geekettes Tech Ambassador, we agreed that it was a great idea to produce the hackathon as a partnership between the Geekettes and the women developers of SoundCloud. Fast forward to the first weekend of March..
|