loarake

7 ms·

1.
by loarake 7y ago
Whatever you do, don't Google "prostate brachytherapy" ;)
2.
by loarake 8y ago
Don't quote me on this because I only covered the topic briefly in some applied classes before doing 6 years of research, but if I remember correctly, you grab it with long tweezers and dump it in a shielded "garbage can" typ
3.
by loarake 8y ago
It's much more primitive than you think. Dose distributions are simulated based on a CT/MRI that was acquired before treatment (treatment often lasts weeks). Only minor corrections are made when anatomy changes during the course o
4.
by loarake 8y ago
Just defended my PhD thesis in medical physics. Worked on radiation therapy treatment planning, which combines optimisation theory with the physics of Monte Carlo particle transport engines (and more macro energy deposition modeling as well
5.
by loarake 8y ago
I want to echo point #2 about listening rather than talking. When I first pitched my work to radiation therapy vendors at big conferences, I was expecting a kind of adversarial exchange to take place where I'd have to defend my softwar
6.
by loarake 9y ago
-Working for a big tech company: you're writing code to deliver more ads to more people so the company can grow and deliver even more ads to even more people -Being a truck driver: you're moving boxes around -Being a professional
7.
by loarake 9y ago
I wish MUDs were featured more prominently in online gaming history. They basically defined my childhood, and I learned how to code by writing vendor bots on a MUD. Dealing with edge cases (customers trying to buy invisible items without be
8.
by loarake 9y ago
In general, the field is split into imaging research (MRI, CT, Ultrasound, optical imaging) and radiotherapy research. It's a very applied field, the fundamental physics has been figured out a long time ago except for some really nic
9.
by loarake 9y ago
Medical Physics 4th year PhD student Workday: - [Variable] Wake up, shower, make coffee, read news. - [10-11 AM] Take the subway to work (15 minutes) - [11 AM to 5-6 PM] Work on Monte Carlo simulation or optimisation code / write paper
10.
by loarake 10y ago
People who go straight from undergrad to PhD often take 5+ years (in the states and Canada, at least), especially in the experimental fields
11.
by loarake 10y ago
There's a cool dystopian-ey youtube video briefly looking into that topic, among other things: https://www.youtube.com/watch?v=YJg02ivYzSs
12.
by loarake 10y ago
worked for me
13.
by loarake 10y ago
I've had a similar experience. I'm in a hybrid field (medical physics) where half of the people are from pure physics and the other half from a more biomedical engineering background. It's pretty funny to see the culture clas
14.
by loarake 10y ago
If you're writing papers in LaTeX, then https://www.overleaf.com should be good for you. Almost all of our department has started using it.
15.
by loarake 10y ago
He published a single author paper even though he acknowledges in the end "I thank Matthew Fiedler, PhD, and Jeanne Lambrew, PhD, who assisted with planning, writing, and data analysis". In my field, those people probably would ha
16.
by loarake 11y ago
I'm not super familiar with computer graphics, so you'll have to let me know if my description fits what you guys do ;) I found a youtube video ( https://www.youtube.com/watch?v=msX1ypCjkK4 ) that should give you an
17.
by loarake 11y ago
This is actually what we do in radiotherapy nowadays, it's even called "inverse treatment planning". Basically a radio-oncologist or a dosimetrist contours (manually, with a pen) organs on every slice of a CT scan and then we
18.
by loarake 11y ago
I've been using http://naturesoundsfor.me/ as they let you mix a bunch of sounds and control the relative volumes of each. I've settled on 40% "Creek" and 70% "Rain" for sleeping.
19.
by loarake 12y ago
Are you sure you're not mixing up neutrons and protons? Here are some typical depth dose curves from google images( http://www.nap.edu/books/11976/xhtml/images/p20014b2bg205001... ). Neutrons, being n
20.
by loarake 12y ago
Yeah it's a shame. The wiki page for ".edu" specifies "Since 2001, new registrants to the domain have been required to be United States-affiliated institutions of higher education, though before then non-U.S.-affiliated—
21.
by loarake 12y ago
McGill University doesn't use an .edu domain, I tried signing up in case they included it anyway but got nothing.
22.
by loarake 13y ago
I don't get the argument. The power requirement of running the entire world's monetary infrastructure is probably much bigger, no?
23.
by loarake 13y ago
My reply was in response to the statement "numpy is two orders of magnitude faster here; it's evidently using a highly optimized internal codepath for random sequence generation", which is false, it's not because of high
24.
by loarake 13y ago
The original source is taken from a medical image DICOM viewer. In my limited experience as a medical physics student, the people working with these tools would really benefit from a comment explaining the code. They are most definitely not
25.
by loarake 13y ago
The numpy example becomes fast when you use numpy arrays. Try %timeit numpy.array(arr); numpy.reshape(arr, (-1, 3)); and then just %timeit numpy.array(arr), you'll see that the reshape takes no time at all. Type conversion from python
26.
On the pitfalls of A/B testing(stavros.io)
24 points by loarake 13y ago|6 comments
27.
Building a simple robot with LEGO Mindstorms.(korokithakis.net)
2 points by loarake 14y ago|0 comments