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brational

247 karma · joined February 26, 2014

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brational··on VW slumps to first quarterly loss in at least 15 years
Most older cars and plenty of current SUVs/trucks still put off worse emissions. Should they be banned from use as well?
brational··on Scientists have discovered why running makes you happy
tea is pretty weak on caffeine and depending on the sugar you're + what's in the milk that would likely easily trump the caffeine effect. Caffeine increases lipid oxidation so you get more energy from fat. But sugar will be used up first and if it's enough to raise blood sugar, the drop will spike hunger more than the increased leptin from fat oxidation can stop it.
brational··on Scientists have discovered why running makes you happy
Do you drink black coffee /tea? Or does you caffeinated beverage include sugar?
brational··on Scientists have discovered why running makes you happy
To add to it caffeine also. When I'm fasting and get hungry, anything that increase fatty acid oxidation (runnning walking caffeine weightlifting, etc) makes the hunger go away.
brational··on Decline of play and rise of sensory issues in preschoolers
There's many studies that support that hypothesis though it tends to be in the 0-5 age range.
brational··on Free Data Science Books
I think you kind of posed a question and a partial answer. If degree in related field (math, statistics) then yes you can pick these things up. If CS or no degree it will be much harder to pass resume filters.
brational··on Posture for a Healthy Back
> Or is the correct sitting position "sitting differently" every 30 minutes?

Actually, yes. No sitting posture is one the body should be holding for extended time. We are supposed to move.

brational··on Microsoft Expands Its Parental Leave, Bolsters Paid Time Off And 401k Matching
The problem is that most Americans are shocked by this. Almost all of Europe has 6-12 months? Canada has 12? So we act like it's crazy generous thing to have so much paternity leave. Good for MS & netflix. The sooner we have a wave of big tech following the trend the better.

I (working in the US) have a handful of friends that work in Germany and UK. The only "bad" thing about US employment is vacation and parental leave. As a male I don't see a need for 12 months but the fact that my wife get shit here (8 weeks of "sick leave" for having a child) is enough to constantly keep my ears open for opportunities in other countries.

We need to stop being surprised and should be saying "about time".

brational··on How Can There Still Be a Sex Difference, Even When There Is No Sex Difference?
>Even today many doctors look down on nurses (as 'below' them; people whose opinions don't matter)

Is that really about gender these days? As a patient, I see it that way too. But that's because the doctor has significantly more education and training.

brational··on U.S. GDP Shrank in Q1 2015
Yea and that makes sense for products that are actual necessities. It is bullshit if applied to an arbitrary "product".
brational··on Creationism Banned from Science Classes by Scottish Government
What happens to the kids whose parents won't provide any leadership or input?
brational··on Foundations of Data Science by John Hopcroft [pdf]
To be pedantic, those all build on linear algebra & functional analysis. At the end of the day it's all just math... just depends how far you want to zoom out the abstract lens.
brational··on Foundations of Data Science by John Hopcroft [pdf]
> Undergrad probability and linear algebra is not a solid foundation in statistics.

Are you trying to argue that statistics is its own field and not built upon mathematics?

brational··on The Importance of Mathematics Courses in Computer Science Education
> He needs to be clearer in what kind of math he thinks would be helpful to programmers and why it would help more than "normal" programming/computing courses.

Agreed.

brational··on The Importance of Mathematics Courses in Computer Science Education
His words: This suggests that learning and doing mathematics might play an important role in educating future computer professionals.

Your words: some amount of math is helpful.

Do you not see how these are the same idea, abstractly?

Also, "if we define mathematics as 'handling abstractions in a precise manner'"

That IS the definition of mathematics. The author is not arguing for more calculus. His background is mathematical logic which is a standard course before all "real" math (analysis, topology, abstract algebra). All of these subjects handle abstractions in a rigorously precise manner.

brational··on The future of loneliness
I think you hit the nail on the head. My two best college friends and I are all separated now but keep almost daily intellectual communication via gchat. I have to use my phone tho as I work for R&D for a big corp and chat is blocked.

It's aggravating. But then later when I can continue a conversation via keyboard the depth and intimacy is much greater.

Maybe as speech to text improves it'll get better.

brational··on Can you make “big money” as an employee in software?
If you check out reddit /r/cscareerquestions and do some searches you will find tons of information about this.
brational··on Can you make “big money” as an employee in software?
> live comfortably for the rest of your life just on the interest from low-risk investment.

50-100k/yr is a comfortable life in most places. That's 1.2-2.5 million in capital. Definitely don't have to start a company of be in a start-up for that at all.

brational··on The Ugliest Sign in America
But the strong welfare state reduces the spread between lower and upper classes and reduces the delta required to be "mobile".
brational··on On Secretly Terrible Engineers
Yea, hopefully my post didn't indicate that I agreed with the process. You certainly listed plenty of counter examples why it can miss the mark.

But my point was about Statistics. The HR warlords for all those defense/aero companies that have set these limits have done so because it segments the pool of candidates to one with a lower chance of bust (or so they've decided as such).

I'd like to see data, I'm some HR or consulting group somewhere has it. Or maybe it doesnt exist. A simple logistic regression problem with a high number of variables (degree or not, age, major, self-study, continuing ed, etc etc).

edit: also - all my comments are speaking from the engineering side of these companies. not IT. So the actual work content is a bit different than the original article may be concerned with.

brational··on On Secretly Terrible Engineers
I have a close friend that joined matasano about 2 years ago. While a good chunk of the readership here is familiar with some of those changes, I think your knowledge is an example of where the 'lessons learned' should be shared as widely as possible. I'm no marketing expert but if someone can find a way to make some of your ideas go viral that would be great for the industry.
brational··on On Secretly Terrible Engineers
Yea. I and many of my coworkers are similar to you. BS&MS in applied math. Did some of the little programming courses but not the full CS path (though I did last summer work through all of this just to catch up some background http://ocw.mit.edu/courses/electrical-engineering-and-comput...).

The reality is different industries have different standards. I'd probably never pass a SV interview because I'm not ever going to memorize many of the CS fundamentals. I work with EEs, Aeros, MEs that code (robotics types), math physics and chem PHds, etc. Sure there's a few CS guys here and there usually that double majored in phys or math.

On a given day, what's more important to our engineering problems is my understanding of advanced linear algebra topics, not a sorting alg (lot of work in CV recently for ex). We really don't bring anyone into an interview that hasnt studied the full gamut of math required in a math/phys/engineering degree. In such an environment, the interview questions are more about how you solved problems and never the memorization of some sorting alg. Oddly enough, when you weed out everyone that doesn't have a full math curriculum first, you don't seem to find many people that 'cant code'. Go figure.

brational··on On Secretly Terrible Engineers
> Not at Raytheon, or Northrop, or Lockheed, or Boeing, or any of the other companies I worked with during that period.

All these companies require degrees, check GPA, and typically have managers that came from technical backgrounds. While not perfect, this combination reduces the chances that a total dunce slips through. Also, all of the above companies tend to be looking at engineers/physics folk over cs/IT, although in the past 15-20 years a lot more CS.

I work at one of the above and for a long time only EEs were hired for any software positions. In regards to math ability that's a fairly high bar. And math competency is pretty well correlated with the ability to program at all.

Not saying that someone couldn't slip through. But all of the mentioned factors tend to reduce the pool of potential flops vs some of the now-standard hiring practices (from the article).

brational··on Ask HN: What up with these startup salaries?
I wonder... is there a widely know list (even if small) of what companies don't do this? If it's even possible to determine that sort of thing, it'd be valuable to share and make glaringly public. Even if it has no influence on the head-in-the-clouds startup leaders that play that game, it would at least be valuable for job seekers to have some assurance of who isn't wasting their time.
brational··on GitHut – Programming Languages on GitHub
>and what likely isn't growing strong in 2014, is likely to continue that trend in 2015.

Based on what?

brational··on Ask HN: How to manage developers who aren't very good?
> * High competence, low commitment... The strategy here is "We talk, you decide."

Can you elaborate on this one? What do you talk about and how do you steer them to their own decisions?

brational··on Ask HN: How to manage developers who aren't very good?
If my boss would just let me devote 3 hours a week to whatever I want then I would never checked HN the other 37...
brational··on A Software Engineer’s Adventures in Learning Mathematics
Not wrong - the poster above you probably means pure math in the analysis sense - real analysis, topology, functional analysis, algebraic topology. All of which are abstractions/generalizations (zoom out, if you will) from the real life world of 2 and 3 dimensional calculus/LA to N or infinitely many dimensions.
brational··on A Software Engineer’s Adventures in Learning Mathematics
@dsuth - that depends on country. Some employers in the US will take a new hire and call them an engineering intern if they require time and testing to reach PE status. That is not required and other employers will grant an Engineer title immediately.

And I'm not merely referring to software. The above is true for my companies 20+ different engineering positions across all disciplines they hire for (Aerospace, mechanical, electrical, materials, software, etc).

brational··on A Software Engineer’s Adventures in Learning Mathematics
Since we're playing semantics,

>When you get an engineering degree from a certified university, you are an engineer.

That's not true. When you get a degree you have an engineering degree. When you get hired and employed as an engineer, you are an engineer. You have an engineering degree and I have a mathematics degree. Our employers hire people for engineer positions and call them such. If I were a professor of math, i could call myself a professor. If I were a mathematician at the NSA, a Mathematician. But my employer calls me an Engineer. The degree does not do that.

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