yogipatel

DNS for that host is borked. Obligatory "it's always DNS"

Rotate it 90° counter-clockwise.

The dependent typically goes on the Y axis. That said, he does seem to be going at it in a non-intuitive manner (for me, anyway). The cause and effect seem backwards. He's optimizing for a customization level even though that's clearly the cause for happiness, not the other way around.

Not disputing his point, but I agree, the graph is confusing.

I fantasize about having a job that doesn't involve me sitting on a computer nearly 100% of the time for the same reason.

edit: formatting

This is an excerpt of a book I’m writing.

Damnit!

I think what he's saying is that an artificial balance hides the actual biases. Kind of like how cooking the books doesn't mean you didn't cheat on your taxes, you just made the numbers work.

That's the definition of p[H]. The definition of the "real" pH is the -log of H+ activity. H+ activity is the concentration of H+ * a coefficient. In practice, the coefficient is considered to be 1, however there are cases (such as extreme concentrations) when that approximation isn't valid.

What domain?

I'm not trying to downplay how much the hacker/geek in me loves this, however, as a former* dental student, I would highly suggest not trying to pull this off on your own.

First, teeth and their movement is more complicated than it might first seem. You have to think about the entire masticatory apparatus, for example:

• There's more root than crown, how does the root move in relation to the tooth? Root resorption is a common problem in orthodontic treatment.

• Is there / will there be enough bone surrounding the tooth to support the intended movement?

• How will the patient's occlusion (how the teeth fit together) be affected? Part of the Invisalign process is to take a bite registration that shows the upper and lower teeth in relation to each other. This is important, and ignoring it can potentially lead to other complications:

- stress fractures

- supraeruption of opposite tooth

- TMJ pain

• Does the patient display any parafunctional habits that will affect the new tooth positions? For example, do they grind, clench, or have abnormal chewing patterns?

• Many Invisalign techniques require the placement of anchors, holds, and various other structures attached to the teeth themselves. They allow for more complex movement than the insert itself would be able to provide.

• Adjustments are often required mid-treatment. Not everybody’s anatomy and biology is exactly the same, so you have to adjust accordingly.

Now, does every general dentist take this into account 100% of the time? No, but they’re at least trained to recognize these situations and compensate for them.

That said, many simple patients don’t require any more thought than the OP put in. It’s a good thing he looked in a text book and realized that there’s a limit to how much you should try to move a tooth at each step before you’re likely to run into problems. And if you do run into problems — do you think a professional is going to come anywhere near your case?

A few issues I have with his technique:

• Unless he poured his stone model immediately after taking the impression, it’s likely there was a decent loss in accuracy. Alginate is very dimensionally precise, but only for about 30 minutes. The material that most dentists use, PVS, is dimensionally stable for much, much longer (not to mention digital “impressions”).

• Vertical resolution of the 3D print does matter. You might be moving teeth in only two dimensions, you’re applying it over three dimensions.

Again, I think it is awesome that someone gave this a shot, and did a fairly good job as well. I’m all for driving the cost of these types of treatments down, as well as promoting a more hacky/open approach to various treatments. Just know there’s more than meets the eye.

* I decided to go back to tech, there’s too little collaboration in dentistry for me to make a career out of it.

Me too, thanks!

I wouldn't call it typical, but I didn't have any fillings until I was 33. Everyone's biology is a bit different — salivary flow, composition, etc. Probably the most important thing that you mentioned is the limited sugar intake. Carbs => acid => cavities.

Keep in mind that these things tend to deteriorate as we age, so you might not be able to get away with rarely brushing forever.

I'm not sure I understand, are you basically brushing twice? Once w/o toothpaste and once with?

This headline is overly sensational — this treatment does not apply for what most people consider cavities (i.e. caries, bacterial decay). It only applies for the very early stage caries process where enamel is just beginning to become demineralized.

Tooth enamel is essentially a matrix that is hardened by mineralization. Caries initially demineralize the enamel, but as they progress they destroy the enamel as well. Once that enamel is gone, there is nothing left to mineralize. You can throw as much calcium, phosphate, electricity, etc at it and you won’t end up with any more enamel. The decay has to be removed and filled with something.

This proposed treatment only works for the very initial stages of demineralization, which are referred to as white spot lesions, since demineralization causes the enamel to become opaque. The current conservative treatment for white spot lesions is to be judicious with cleaning and possibly apply some additional fluoride, as the tooth simply needs to be remineralized. The researchers are claiming to be able to accelerate that remineralization, which is great, but is very, very far from saying that patients won't need fillings.

Source: I’m a 2nd year dental student.

Edit: formatting

A little more skepticism:

Instead of filling the root canal with artificial materials that may pose bio-compatibility problems

Gutta-percha[1] is what is traditionally used to fill the empty canals. It is used because of its bio-compatibility and inertness. The most common complication of a root canal procedure is inadequate cleaning of the canals and related tissues, not bad apical sealing.

1: http://en.wikipedia.org/wiki/Gutta-percha

Are they not going to cover the first stage re-entry/landing? Or am I mistaken about what this flight was actually testing?

Update from GitHub: 23:49 UTC Everything operating normally

I forget where I learned this from, but the astronauts were also very likely to be unconscious very soon after the break up of the shuttle. They died when they hit the water, but they probably weren't conscious. Not that that makes it any better.

Something else — the feeling you get after some kind of strenuous activity that raises your heart/breathing rate. Running, for example.

What you're referring to is getting the wind knocked out of you.

Very well said, I totally agree. It's not always black and white.

That's exactly why depression is so hard to shake. You beat yourself up repeatedly without even knowing it and wonder why the heck you can't just snap out of it.

Sometimes I wonder how my counselor deals with telling me the same thing again and again for months. And then I sign her check :)

Seems like this is a book worth checking out, thanks!

I stopped using SOAP in the shower a month ago and have never felt cleaner. Showering is a more efficient process now:

- I spend less money on resources (SOAP, lotion, etc)

- I get clean faster -- SOAP used to slow me down

- Using someone else's shower is easy, I just take my towel. I don't have to worry if their SOAP is compatible with me.

Yes, you are being overly sensitive.

If you could come up with a system that could always determine where geographic north is.

Oh, and you can't use any external power source.

No, they'd still have to be swapped (under the current scheme of runway numbering). If you're landing on runway 18, you know your compass better be reading ~180° (after correction for deviation). Similarly, when taking off from runway 18, your compass should read the same.

You can see just how much the magnetic variation changes around the world in this graphic: http://en.wikipedia.org/wiki/File:Earth_Magnetic_Field_Decli...

One thing you have to realize is that a counselor/doctor is not your friend, but someone that helps you solve your problems with professional advice

Depending on the situation, it can take a patient a lot of time to even begin to have this thought.

My experience with counseling inclines me to say that you took fuck all out of the counseling, not the other way around. It sounds like your issue in high school wasn't just anger, it was anger that might hurt someone. That's a part of the problem that needs to be addressed, even if a counselor deems it necessary to report you.

But — obviously nothing is that black and white, especially not after just a few sentences of background information. Just as there are crap professors, there are crap counselors. If you ever give it another shot, I'd suggest seeing a few of them (first sessions can usually be free) and finding one you feel comfortable with.

I agree that it might not be the right place to get really deep into this. Feel free to email me.

I hear that in his words as well. It's as if he was scared that people with his secret could hurt him again somehow. I'd say that's understandable.

I've never had a counselor actually read notes in front of me. They do have notes, and they do read them, but not while we're in a session. When that happened to him I imagine he felt more like a patient than a peer (for lack of a better word). It's disappointing to me because that's what counselors are for — they're supposed to create an opportunity for someone like Bill to open up. It's clear to me he didn't like holding his trauma as a secret but was afraid of it being used against him somehow.

Relationships are just an escape. He was aware of himself enough to know that, which is (was) a good sign. Darkness like his allows you to feel like you're head over heels in love in one moment, and then in another wonder WTF the point is if we're just going to die anyway. It's as if it were a drug. And like a drug, its efficacy fades over time.

Good for you for being able to be honest and open about your problems! That takes balls.

One technique that's worked while I'm in a depressed state is to just expect & accept it. When I get into a funk and think about how all I do is feel depressed, I tell myself, "No shit Yogi, of course you're going to feel this way, look at all the crap you have to deal with". Those few words don't get rid of the sad feeling, but it helps me get past it. I feel like that's all most people need, a way to get on with it.

Even after years of therapy, I'm still amazed at how trained our brains can become. Unfortunately for many, that hard wiring forces them into a downward spiral, where from it's harder and harder to recover.

Nice idea. You've got mail.

Wow.

Having grown up abused by my own parents (in all ways except sexually), I identify with a lot of what he says. I used to think of suicide daily, now I just think of death. Counseling (sans drugs) is what helped me get there. It's good and bad now, but there's a positive trend.

I think what saddens me most about this note is his experience with counseling professionals (though he does use the word doctor, so "counselor" might not be totally accurate). My counselor's office is where I most feel like myself, it's where I feel safe. If only Bill had a situation like that, he might still be here today.

I didn't know the guy personally, but I've read stories like this before, and one thing that stands out to me is how amazing some people that have been through trauma like this are. He went through all the hell that he did, dealt with it on a daily basis, yet still had the capacity to do great work, to make people laugh, to attract others to him, and to generally do awesome things (http://blog.from.bz/2009/03/01/sudo-make-me-a-sandwich-stub-...).

Do yourself a favor and read the note all the way through. Pass it around. Remember that in general, half of the people you see every day have it shittier than you do. Try not to be a jerk.

Great presentation! I'm curious, where did you guys get your flight information from before the ITA deal?