skysight-inc/HackerNews huggingface dataset:
In a controlled setting, sunblock will always affect vitamin D production, whether you expose for 20 minutes or 60 minutes or 120 minutes, or whether you test 37 subjects or 370 subjects.

The reason is that 7-dehydrocholesterol is photolyzed by UV light in the 280-320nm range (mostly UVB) to previtamin D. Sunblock works to absorb UVB (and usually UVA) to prevent it from penetrating your skin. Thus sunblock limits the amount of UVB penetrating your skin, and limits your ability to make vitamin D.

That being said, yes, you will still make some vitamin D with sunblock on because sunblock is not perfect at absorbing UVB. Just not as much as you would without.
I don't this he is being the slightest bit unfair. At least in the US, lotteries make a lot of money for the people running them, but that is normally shared with local communities or governments. If you participate in lotteries, you pretty much are guaranteed to be throwing your money away, but at least losing people do get some benefits from the system, as the proceeds get spent in their area.

In this case, one guy just collects the money. No matter what his intentions or honesty, he collects.

If people want to throw him their "cash", fine... but they should absolutely realize what they are doing.
> Toyota engineers also rejected Tesla’s proposed designs for an enclosure that would protect the bottom of the RAV4 EV’s battery pack... Tesla ultimately added a titanium plate to ... better protect its battery.

That might explain why Tesla was so willing add said plate to the Model S.
[OP] The e-mail reply from our lawyer:
"In theory, the default way of calculating eventually is lower than the alternative method when a company becomes large.

Every February we have frantic calls from our clients when they receive their tax bills."

LOL.. just founder things
I was not making an hypothesis, I was describing how situations like this make people feel and then I described how that makes me feel.

The irony is that even though you believed that you made a rational counter-argument what you really did is describing your very own feelings with a comment that is betraying your insecurities.
Why your next startup idea won't come from brainstorming
Introducing Push It. Simple, Anonymous Messaging
Thinking about this, Matasano turns out to be a rather good name for your company. After all, your services are about trying to "kill the healthy" system, so to speak.
The market demand is hyper focused on reactionary credentialism fundamentalism. So good luck with suggesting something new.

In true doublespeak fashion you can name something an "education system" all you want, but that doesn't mean it necessarily educates or even does vocational training.

Edited to add:

The weirdest lifestyle of my entire life has to have been school related, both K-12 and college. It is like visiting a very foreign land. Its just bizarre, compared to real life. For a weird alternative history mind bender experience imagine trying to re set your current home and work life into the lifestyle and culture of high school or freshmen year of college. And I'm not talking about trivial things like music fads or drug experimentation but basic things like interpersonal relationships and the social structure both among the students and "authority". And slavish devotion to the factory clock although the factory closed and moved overseas in my dad's generation. I would imagine literature like this already exists, but it would be so weird as to be unreadable.

This is what makes intense credentialism so weird. The way we prepare our youth for life is to have them compete against each other in an RPG where the rules and stats are in constant unknowable flux and the goal is uncertain but may be academic or sports or drug experimentation or sex experiences, with a little binge drinking, then the winner (which seems to depend mostly on inherited genetics and luck and stamina) gets handed the controls of a nuclear reactor. It makes the hazing that .mil basic trainees go thru seem calm, wise, and rational. Everyone agrees its time to fire the GM and replace the whole RPG with a sane new set of rules. No one can agree on which rules, and the guys in charge, who happened to be pretty good at the old game, want nothing to change other than at most a reskin of the game art, if that much.
I really love Heroku. It's so well design, but I'm considering change to DigitalOcean, AWS or something similar.

The main reason is price:
Former providers are 3x cheaper to host side project. I don't make money out of it and it's getting too expensive.

AWS gives 20k to startups which is enough to take pain of maintenance/devops.

I'd be happy if I got 2 dynos for half the price for 2 years.
This is a fantastic way to teach courses, and is in some sense the canonical seminar.

The model works very well for upper-level courses, but not so well at the first 2 or 3 years, which is where most drop out of college.

edit: the short pre- and post-tests are pretty effective, if you can afford the time, at every level of the curriculum. I'm not sure why they aren't more prevalent, except that it's very time consuming for the course staff.
The private registry is easy to get running, but actually using it is very, very clunky.

I understand they want the public index to "always work", but the requirement to tag images with FQDN for docker to even try to use a separate registry breaks a lot of a very common use cases, such as transparent caching and mirroring of images.
GitHub Hearts FIRST Robotics
Antibiotics vs. the Microbiome
No point in shaming, anyone can experience this kind of problem. Even Google once marked all websites as "contains virus", and Amazon cloud was unavailable due to a storm. It was not the well known domain name registrar's DNS.
Gartner's 2014 Hype Cycle for Emerging Technologies Maps
I was just thinking about this when I read the recent wired article. I'm glad this has been updated to work again.
This works for more than just discussion based classes, as well; one of the best classes I ever took in college was a CS Theory course; every single day, the class started off with a quiz on the material we had covered in the previous class. Immediately after finishing the quiz, we'd go over the answers in class together.

The end result was that you were constantly getting immediate feedback about how well you understand the material; if you thought you knew what you were doing and you were actually totally lost, you found out the very next day and were presented with an opportunity to ask for clarifications. And since there were so many quizzes, there was no need for larger tests (because the professor constantly felt like he had a good handle on how people were understanding the material) and you never got stressed out about bombing a quiz or two (because there were thirty other quizzes that would go into calculating your grade, plus the workshop scores and homework scores).

It really removed the stress of the class and gave me an opportunity to focus on the material itself, instead of worrying about how I would do on the tests. Weirdly, when every day was a quiz, it seemed like there were never any quizzes.
The premise of this question is that execs have been fired for being "insufficiently diverse" or "insufficiently feminist". But there's a difference between not believing that anthropogenic global warming is a problem that demands changes to the way industry is run, and doing things that have the overt effect of creating barriers for women in the industry.

Leaving that aside, I think you'll find that a more careful look at the Pax Dickinson drama will reveal that it's not a particularly helpful example for this thread. There was a lot of stuff happening there.
I think you're missing the point about the motor. The BMW i3 uses an electric motor for propulsion, but that doesn't mean it's suddenly 80% efficient if the electricity is coming from the internal backup combustion engine. If anything, you are now only 0.2 * 0.8 = 16% efficient [1].

What I'm interested in is the efficiency of the whole process in the car that turns the fuel into motion. In the Tesla, the electricity is stored in batteries which have few losses and goes directly into a highly efficient electric motor, so it gets that 80% overall.

1: In practice, the setup electric engine for propulsion + combustion engine for electricity tends to be somewhat more efficient than just the combustion engine for propulsion, as you can run the combustion engine at a constant, efficient range of RPM.
In 1982, in my state, minimum wage was $3.35/hr. Tuition + fees at my states large research university was $1,562/semester.

In 2001 when I entered as a freshman minimum wage was $6.75 and tuition+fees was $5,707.

In 2013 minimum wage was $8.00 and tuition was $13,258.

minimum wage is up +200%, education costs up +850%.

That is probably a major reason why a) Not as many young people are getting degrees b) why not many actually finish their degrees.

My advice: stick to the trades, work in a union for a major utility provider. At least until the singularity happens.
Thanks! It's backed by Mongo. Node server with a Backbone front end. A lot of custom code, though.
Do you realize that Panamax is a registered trademark of www.panamax.com?
the Navy called and informed them they would not be putting active sonar pingers into US coastal waters

This makes no sense. Active sonar pingers are on pretty much all boats apart from small dingies.
I just checked google page is of 149K.
This is always cool:

http://www.dreamsongs.com/Files/WhyOfY.pdf
Red Hat Enterprise Linux 6.6 beta is ready for testing
Except the argument in sports is exactly this:

> Athletes are not machines, and anything that can
> affect their expectations (for example, success in
> previous tries) should affect their performance—one
> way or another. To put it another way, there is little
> debate that a “cold hand” can exist: It is no surprise
> that a player will be less successful if he or she is
> sick, or injured, or playing against excellent
> defense. Occasional periods of poor performance will
> manifest themselves as a small positive time
> correlation when data are aggregated.

Basically the question of what factors could be present that would increase the success likely hood of a basketball scoring attempt, and then whether or not those factors can persist over time or if they are always just noise. And the myth part being that someone who believes they will be successful is more likely to succeed than someone who has no expectation of success.

The science then is can the expectation help, and if so can it bias success in a statistically significant way.
I generally think Bill Gates is a clever man. I also think his heart is normally in the right place these days. That said, I think he, and most of education reform seems to often focus on the externalities of education, rather than the core, the student.

I agree that better data reporting, with focuses on goals and outcomes, much as has been done in the Aid sector, could help. I also think that having a better education environment, in the form of good advising for support, and broader class type / learning options, may help students complete school once they're there.

However, in a tie-back to the earlier article [1] on the disconnect between boss / worker expectations, I think we also need a much earlier focus on individual achievement and learning. On setting goals, and then largely giving students freedom in how they approach and attack those goals. That is what college students need to be successful, and that is what the job sector identifies as the signal of good, high performing workers.

Many of the students that we send to college are not mentally ready to be successful at college. In fact, many go without any clear idea of why they're going, besides the advertised 4+ year party, or family saying "go". In many ways, I don't think that's their fault. Part of it is, for not taking charge of their lives, but for many, college is one of the first times where you seriously have to set your own goals. High school teachers took care of it, parents took care of it. We need to remedy that by providing more, low-risk opportunities for them to develop those skills while they still can work with a net.

As a corollary, I also don't think we should make it easier for students who aren't ready to attend. It does a disservice to them, and due to the way our current college loan system is set up, it often ends up burying them for the rest of their lives under non-transferable debt. (often times at the scale of a low-end house) For those who it didn't, many times we get C to D folks out the other end, who muddled by, and drift on to something. Maybe the act of attending enriches them, and ultimately makes them better people, but for a lot, I feel like higher education has become an expensive trap that we're not properly preparing them for.

[1] http://www.insead.edu/facultyresearch/research/doc.cfm?did=4...
FIRST Robotics • Presented by GitHub
I have no experience with big-name tech megacorps, my career has been with startups and small companies mostly. As a non-young person who's looking for something new at a small startup, my feeling is that age discrimination is clearly a thing, but it's not (just) a function of expected compensation, skillset, or willingness to work insane hours. My feeling is that, while you're expected to fit the profile in those areas, most of the discrimination is based on what startups would call "cultural fit". Specifically, being "like them" in having an enthusiasm for a dorm culture atmosphere. Yes, Work is Play! It's All About Having Fun(!) here at our hipster office. We have fussball tables. A fridge packed with beer! Group outings to clubs (to hear bands that are popular among the just-graduated set, don't expect a night at the symphony)! Food from the food trucks. Nerf fights! Why oh why would you ever go home??

I frequently see this sort of work environment publicly glorified on the "come work with us!" pages of startup websites, often accompanied by a self-congratulatory statement such as "of course, we wouldn't be a real {SF|NYC|Berlin|...} start-up if we didn't have all this and an office in the coolest part of the city" and so forth. The implied message being that if you're not likewise enthusiastic about a "work is socializing and play with some coding mixed in followed by socializing and play" atmosphere, if you don't share the non-work-related values and interests of "the team" (i.e. things 23 year olds care about), then clearly you're not startup material. You won't be fun to have around, won't be fun to hang out with, you should probably go work for an insurance company, somewhere boring where you'll fit right in.
I wonder if male investors are actually acting rationally leaving women out of their portfolios. I mean, we all know how a pretty face can scramble the thought processes of a male, and there actually are scientifically verified cognitive biases [1] that work against rational thinking in a multi-gender environment.

Not saying, of course, that this justifies any kind of harassment, just that maybe some of these investors have learned in the hard way that their judgment gets clouded when dealing with women.

[1] http://en.wikipedia.org/wiki/Halo_effect
IMO the mechanics are limited for the following reasons:

1. The buttons take up screen space. You either have to design your game with a touch interface in mind (touchable objects) or ensure the action all takes place at the center of the screen.

2. In order to hit a button or make a gesture, you have to obscure your view of the screen. This means soft buttons need to be larger than the size of the average finger tip. Which limits the number you can have on screen.

3. The buttons aren't tactile. Again, this limits the number of buttons you can have since it's hard to differentiate between them without moving your finger and seeing where the button is.

Given these restrictions, it's no wonder that certain types of game mechanics have become very popular: parabolic motion games like Flappy Bird or Jetpack Joyride, tower defense/strategy games, swipe gestures (Infinity Blade or Fruit Ninja) or puzzle games like Candy Crush. In fact, the mechanics for these games would likely be very frustrating on a controller or mouse/keyboard.

I've played a number of action games on iPhone as well, and the controls just kind of suck. Secret of Mana is only playable because the console version's hit logic was glitchy to begin with so it works ok on mobile. I probably wouldn't have played more than 5 minutes if it weren't for the nostalgia factor.
This is really tragic when it is whoever speaks poorly about that work will get rewarded. It's easy to throw stones and sound smart; it's very difficult to create. And so many managers (and others, actually) can't seem to tell the difference.
2014 Fields Medal winners announced
Are you truly trying to define victimhood in this case of sexism? The issue is never black and white, but I think it's pretty clear that OnePlus's campaign is straight up sexist. Unless this is your opportunity to point out that women who participate are just as bad (therefore relinquish respect for them)?
A Look Inside 1.1M Open-Internet Comments
So like the dmoz.org or higher education?
Right, so (.80 * .98(100) + .20 * 0) = 78.4. Which is 2% less than the 80 you paid to entry...

This makes more sense when I use an absolute (100), I think my mistake was in trying to calculate 100 as a variable amount, I must've made an error there. Thanks for explaining :)
And in true reactionary fashion, you'll find that everyone shows up for the revolution, but no one agrees what should come next.

Coming up with a workable solution is a lot more difficult than throwing out the old, both objectively and politically.

edit re: parent's edit:

see Ivan Illich's Deschooling Society.
The site says "The draw is weighted by payment amount". I'm assuming that's linear -- if I put in 1 stellar, and you put in 2, you're twice as likely to win than you are. If the weighting is different (say, you're four times as likely to win), then that changes the math.

Let's say that before you put anything in, the pot holds X stellar. You then put in Y stellar. So I'm assuming that you win with Y/(X+Y) probability. If you win, you win .98(X+Y). If you lose, you lose everything.

So your expected value is the chance you win (Y/(X+Y)) times the return (.98(X+Y)).

Y
--- * .98 * (X+Y)
X+Y

The (X+Y) parts cancel, and you end up with .98Y, or less than what you put in. And since we didn't use the fact that Y>X, it's independent from the actual values of X and Y, so it holds no matter what they are^1.

[1] Assuming they're positive, and X+Y is nonzero.
Innovation feeds creativity
ah, I meant that lyft hadn't added limitations because lyft hadn't been abused this way before.
Show HN: WeeklySetup – A little weekend project about workspaces
German Artists Say They Put White Flags on Brooklyn Bridge
I'm not American, I don't live in America, and I can to a degree I can understand all this retardation coming from a country with such a rich history of overt racism. But goddamn the internet != america and these international tech companies having to pander to you delicate tulips is getting old.

Hell, why not go after Samsung for hiring too many Koreans.
I really enjoy the new user experience on mobile these days. Really intuitive and works well with native Android features. Particularly think adding new files (multiple at once) has gotten a lot easier. Haven't had a chance use the new sign-up form but it looks great.
I don't know of any modern country where it's not required.
Safari for Windows was abandoned 2 years ago by Apple with no announcement and no transition plan. It's now got quite a few unpatched security vulnerabilities and shouldn't be used by anyone. I'm not sure why it even warranted a mentioned in this article.
Show HN: HireGun – for finding online marketing consultants
Oh, was it Caprica? Oops.
Wasn't this also the caterpillar drive from "Hunt for Red October"?
I think this downvoting thing is out of control. What was even remotely offensive about this correction?
I'm a male and feel like a victim because I'm excluded. That's unfair.
That's his point exactly. The reason more black kids start playing basketball is because more black people are in the NBA. And therefore more black kids end up in the NBA in the future. It's a cycle. There's no _intrinsic_ reason for that though.
You don't have to put thoughts into the investor's head or play armchair psychologist.

The investor acted misogynistic on the face of it. I don't know how playing thought police adds to this.
There's a middle road: slash administrative costs substantially and roll back cuts to state funding for local and regional public universities.
Explaining my downvote:

The idea that scholarly discussions should ever be disregarded as insensitive is, in my opinion, pure absurdity.

I don't disagree that this isn't the right time for it (though I don't fault angersock for that), nor do I disagree that it might dull the sympathies of some - regardless, I completely reject that as a valid reason for avoiding an exchange of ideas driven by intellect.
So, that looks like it's got a LIDAR with some sort of downward facing sensor. The small compartment means it's not competition for our QCBot but I bet there'll be a SaviFOO which is.
Did you not see the "What language do you speak", "Which devices do you own" and "Improve your workhub profile"?
One semi-solution to that (which would have made the problem almost invisible to any webpage visitors) would be to only serve the script over HTTPS. Presumably the domain parking page was not using a cert that matched "cdn.qbaka.net", so a browser would fail to download anything due to a cert mismatch.
> According to an email Uber sent to drivers in May that was reviewed by The Wall Street Journal, the company offers $250 for referring a new driver to its service; $500 for referring a Lyft driver; and $1,000 for signing up a Lyft "mentor," an experienced Lyft contractor who helps train new drivers.

This sounds scarily like MLM to me. Anyone else?
http://liquidr.com/

http://nighthacks.com/roller/jag/
> Heroku needs to open source the testing it has used to claim 3X performance.

The bottom of the bar chart says: Database performance was measured using pg bench with 150 concurrent clients performing read-only transactions.

pgbench[1] is a performance benchmarking tool that is part of PostgreSQL itself. It ships alongside the rest of the PostgreSQL binaries and is open source just like the rest of PostgreSQL.

I think this line from the article is interesting:

> In addition to Heroku Postgres DbX we are launching new database plans with double the memory and speed improvements of up to 3x at the same price as our current plan lineup. These plans feature an upgraded and re-engineered infrastructure to drastically improve their memory and speed.

I wonder if the bulk of the price/performance gains are from switching to newer instance types on AWS and/or switching the underlying storage from magnetic disks to the new SSD EBS volumes[2].

[1]: http://www.postgresql.org/docs/devel/static/pgbench.html

[2]: http://aws.amazon.com/about-aws/whats-new/2014/06/16/introdu...
I'm confused why you would say that.

FTA:
> Ultimately every named construct or concept in pure mathematics needs to have a place in our symbolic language.

The reason your plea confuses me is that I don't understand the social value in encoding all _public_ "named construct or concept" in a _private_ "symbolic language" that only one proprietary piece of software that can be monetized by one corporation can benefit from?

Why would we want to do that?
I agree - it's hard to distinguish some willfully bad actions from mistakes. I don't think missing a single day's worth of worker's comp insurance in the middle of a state-to-state office move qualifies as one of those hard-to-distinguish-from-willfully-bad-actions, though.