randlet

Many (most?) modern linear accelerators have imaging panels behind the beam path (see image [1]) which could be used for dose monitoring although they are primarily used for imaging purposes. I'm not sure whether any of these are currently used for dose monitoring.

[1] http://tommytoy.typepad.com/.a/6a0133f3a4072c970b0147e2ed7f8...

Putting things in the way of the beam to measure dose is actually quite common.

You can do real time dose monitoring using diodes (see [1]). The diodes are quite small and don't generate huge amounts of scatter.

It is quite common to use TLD's[2] to monitor patient dose which is then analyzed offline to give dose estimates after the fact.

edit: that said, I don't think anybody was doing real-time in-vivo measurements during the era of the Therac incident.

[1] https://www.aapm.org/pubs/reports/RPT_87.pdf

[2] TLD=thermoluminescent dosimeter, little hunks of metal whose electrons get stuck in an excited state when exposed to radiation, you then heat them up and measure the light they give off as they relax back to ground state. The amount of light they give off can then be correlated with the dose the patient received.

Exactly. As someone who has spent a lot of time writing intranet sites as a one man army (with more strength in application development than design), Bootstrap has been a godsend for me.

"Cruising through the trees that next morning in the real snow is something I'll never forget"

Yes! The first true powder run you make in your life after skiing/boarding for 20+ years on east-coast hardpack is a nearly religious experience.

"Comments clip off the screen when you click into a comment section. When you zoom out, they're harder to read"

Yes, this is frustrating.

Yep. Seeing the same thing on a Nexus 5 using Chrome.

Stationary relative to the ground but not the air.

I've been a subscriber to Dorna's MotoGP VideoPass[1] for a couple of years and it is incredible (yes it's got some issues but overall it's fantastic). Stream practice session, qualifying, races, press conferences live or access later at your conveniencef (from a No-Spoiler page none the less!). All completely advertisement free. You can also access a full archive of historical races year round! It's amazing and a model that should be emulated by other sports organizations.

I don't currently follow NFL but mostly because I don't have cable or any way to selectively choose when I watch a game. I would happily pay for NFL access the same way I do for MotoGP.

[1] https://secure.motogp.com/en/subscribe

FWIW I (GP) have two kids and totally agree with this:

"Parenting science is like nutrition science. Lots of studies, little consensus. Just ignore it".

I'm just too weak to resist such low hanging joke opportunities.

Great. Another thing to worry about when trying to start a family...

As a hearing aid wearer, I can probably think of a couple of ways hearing aids could be used to improve hearing of non-impaired[1] but you definitely don't want just "broad spectrum amplification" (hearing every small click, clack & whir gets old fast). Think more along the lines of decrease of external noise in a cafe so you can focus on a conversation, a tunable amplification of quiet sounds, as replacements for blue tooth headphones etc (sound quality is not great currently) stuff along that lines.

> Hearing aids are so uncool 80 year olds don't want to be seen with one. They are all about being small, flesh colored and "invisible."

This might be true for older populations but kids can get brightly coloured hearing aids and moulds[2]! When I was first being fitted for HA's (at age 32) my audiologist assumed I would want the least visible model possible but I opted for larger more visible behind the ear models...I want people who I interact with to be able to see that I have hearing loss. People tend to get annoyed if you ask them over and over to repeat themselves but are generally much more patient if they know you are hard of hearing.

[1] Just FYI The term hearing-impaired is somewhat offensive to some people (not me) who prefer hard-of-hearing or deaf, or Deaf

[2] https://www.google.ca/search?q=kids+hearing+aids&num=30&sour...

Yeah, I get the feeling that many many government (and healthcare?) job advertisements are only posted to meet regulations and there's already someone lined up internally.

Hi ilaksh, I read through your page although I don't think it would be my preference for living there are some neat ideas.

Adding these simple lines to your css file will make your site instantly much more appealing to read!

    body {
        max-width: 960px;
        margin: auto;
    }

Came here to say the exact same thing. I really dig the concept, especially if you keep a nice small list of curated items.

The product loading is way too slow though and made me feel frustrated.

>> "Because here’s the thing about your 20s. They are the time to work. The very, very best time in your life to work your ass off and create an exponential snowball of money, skills, and friendships. Your brain will never be more sponge-like and inexhaustible. You will never feel more motivated and less cynical than you do now. And you will never have another decade of pre-childraising freedom in your life."

Reminds me a lot of:

>> "Economically, you can think of a startup as a way to compress your whole working life into a few years. Instead of working at a low intensity for forty years, you work as hard as you possibly can for four." [1]

[1]http://paulgraham.com/wealth.html

"+p to paste of course :) That also works in a terminal so you don't have to use ctrl-shift-v.

Phenomenal shot thanks!

http://www.downforeveryoneorjustme.com/facebook.com says yes.

Wow thank you. I had no idea that was something you could do!

I was coming to comment the exact same thing. I actually stopped reading halfway through the article to check the published date because I thought it must be at least 10-15 years old!

It probably doesn't matter too much in the long-term, but you can't use childhood amnesia to justify ignoring the way a toddler feels right now!

Yes, that is somewhat speculative on my part although the "chemistry" part behind the bond created by breastfeeding is very well established.

At two years old most children will have a stronger bond with the mother than the father because generally the bulk of care, including breastfeeding, has been administered by the mother up until this point in their life. There are likely genetic/chemical/evolutionary forces at play here too.

Even at three years old, my daughter would unquestionably choose to spend three months with my wife rather than me (I'm not hurt or offended by this!).

edit:

"but the kid probably won't notice that much"

The kid will definitely notice :)

Being separated from a kid for three months would also be much harder emotionally on my wife than it would for me.

Almost 20 years later, I distinctly remember my high school physics teacher standing at the front of the class on the first day and saying "Remember this: everything you will learn from me this year is wrong."

That 25% difference is for a single serving of food and only translates into a ~2.5% error in your daily food total. People eat a varied enough diet that a 25% difference in a single food item really won't make a huge difference.

Lets take a man who needs ~2500kCal per day to maintain his current weight. A nice steady loss of 1lb per week would require this guy to eat at roughly a 500kCal/day deficit (a total deficit of 3500kCal translates to a fat loss of 1 lb). Even underestimating his total caloric intake by 10% (he eats 2200kCal instead of 2000kCal) every single day will still see him losing weight at .6lb per week.

After 4 weeks of this he can see that he's only lost 2.4 lbs and can therefore reduce his intake by another 200kCal/day to achieve the desired 1lb/week loss. Tracking your weight/calories like this makes it fairly trivial to lose weight. It really doesn't matter if all the individual food items have perfectly assessed caloric content...as I say, they're close enough.

The estimates are close enough. Unless a food is wildly inaccurate, it all comes out in the wash.

As I've said elsewhere, calorie estimates on packages are close enough that it doesn't really matter what you eat as long as you estimate consistently.

Whether or not it's sustainable is a different topic though.

You don't need to know the real numbers...the estimates on foods are "good enough". You don't have to eat the same thing everyday, just be consistent about logging every calorie you eat and stop worrying if the estimates on the package are 5-10% off or your body is 2% less efficient than mine...that all gets lost in the noise. If you track your calories for a month and find your weight stays exactly the same while you are eating 2500 calories per day of whatever foods you normally eat, then reduce your calories to 2000 without changing your diet you will lose weight at roughly 1 pound a week. Simple, not easy.

"Simple, not easy".

You track your calories, you track your weight. If you're not losing weight you reduce your calories until you are. This method compensates for peoples differing metabolism and activity levels.