Carlos Castillo Passi
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cncastillo.bsky.social
Carlos Castillo Passi
@cncastillo.bsky.social
Postdoc at Stanford. Joint PhD graduate from KCL and UC. #JuliaLang enthusiast. Leveraging technology to advance healthcare. MRI research.

www.github.com/cncastillo
Blog post explaining how I drew the Julia logo using spins and an MRI scanner! 🪄🧲 #JuliaLang #MRI

cncastillo.github.io/BlochHole/po...
I Drew the Julia Logo Using an MRI Machine – Bloch Hole
How the physics of MRI can be used to draw with spins and why this is useful.
cncastillo.github.io
November 4, 2025 at 2:30 AM
Reposted by Carlos Castillo Passi
Scientific Modeling Cheatsheet: #MATLAB vs #Python vs #Julialang

Side-by-side comparison for:
• Differential equations
• Optimization
• Automatic differentiation
• Symbolic computing
• More!

Highlights ecosystem differences & best practices.

sciml.github.io/Scientific_M...
Scientific Modeling Cheatsheet – MATLAB – Python – Julia Quick Reference
sciml.github.io
September 22, 2025 at 6:43 PM
Reposted by Carlos Castillo Passi
#Julialang Dispatch: we welcome Jacob Zelko, who takes us on a fascinating journey from his early days as a #biomedical engineering student through his work at the CDC during the COVID-19 pandemic, and into his current exploration of applied #categorytheory.

www.youtube.com/watch?v=HyMp...
Julia Health with Jacob Zelko
YouTube video by Julia Dispatch
www.youtube.com
August 5, 2025 at 4:30 PM
Omg! The official JuliaCon account posted about my talk! 😱 Shout-out to @thecedarprince.bsky.social for organising the JuliaHealth mini-symposium and totally carrying it by giving 4 talks!!!

The slides for the talk are available here: github.com/cncastillo/K...
JuliaHealth Mini-Symposium featuring Carlos Castillo Passi on his "What's New with KomaMRI.jl?" talk
July 25, 2025 at 12:10 AM
Reposted by Carlos Castillo Passi
Lee Phillips
@lpfeed
arstechnica.com/science/2014...

Classical #physics is an active research area, is fundamental, and is still full of interesting and even controversial problems. Does your physics professor understand how airplanes fly? Good chance the answer is “no”.
The never-ending conundrums of classical physics
Even today, scientists still try to solve sprinkler brain teasers from the 19th century.
arstechnica.com
July 19, 2025 at 12:06 PM
JuliaCall is blowing my mind 🤯, running GPU-accelerated #JuliaLang code from Python was insanely easy!
June 6, 2025 at 11:21 PM
Big fan of the Journal of Open Source Software! It's awesome that the whole review process occurs publicly on GitHub 😊
JOSS has now published more than 3,000 articles, and I've personally edited 60 of them (still editing +5). Being a part of JOSS has been one of the most fulfilling experiences of my life.

@joss-openjournals.bsky.social
#JOSS
May 29, 2025 at 5:58 AM
Reposted by Carlos Castillo Passi
How to make #autodiff user-friendly? What lies beyond the safety of Python-world? Why does it matter for scientific machine learning?
All this, and more, in our latest preprint with @adrhill.bsky.social! Spoiler alert: it describes the most useful software I ever wrote.
arxiv.org/abs/2505.05542
May 12, 2025 at 6:59 PM
Reposted by Carlos Castillo Passi
Wanna learn about autodiff and sparsity? Check out our #ICLR2025 blog post with @adrhill.bsky.social and Alexis Montoison. It has everything you need: matrices with lots of zeros, weird compiler tricks, graph coloring techniques, and a bunch of pretty pics!
iclr-blogposts.github.io/2025/blog/sp...
April 28, 2025 at 5:07 PM
My MRI simulation paper was among the top 10% most read in Magnetic Resonance in Medicine 🤩! #JuliaLang
April 16, 2025 at 3:16 PM
Reposted by Carlos Castillo Passi
“New horizons for Julia”:

lwn.net/Articles/100...

My article about #julialang 1.11 and new directions for the language. I talk about new tooling for installation, compilation to small binaries, Julia in browsers, and more.

#science #programming
New horizons for Julia [LWN.net]
lwn.net
February 20, 2025 at 7:34 PM
My first impressions of #Stanford: Wow! What a lovely campus. I’m not sure if this could even be considered winter. Pretty excited 😊!
February 3, 2025 at 12:50 AM
Reposted by Carlos Castillo Passi
The countdown is on: Just 3 days left to submit your proposal for JuliaCon 2025! The Call for Proposals closes on January 31st, 2025, at 23:59 EST.
Submit your proposal today:https://pretalx.com/juliacon-2025/cfp
#JuliaCon2025 #CallForProposals #JuliaLang
January 28, 2025 at 5:39 PM
Reposted by Carlos Castillo Passi
Hi folks!

Our first JuliaHealth meeting of the year is taking place this Wednesday 12 - 2PM EST! We will be reflecting on last year, the coming year, and planning for @juliacon.bsky.social!

Come with your thoughts and give the agenda a look! Hope to see you there!

#julialang #medsky #academicsky
[Workgroup] JuliaHealth Meeting (Americas/Europe/Africa) -- January 29th, 2024
Hi Everyone! 👋 It is a new year and it is time to have our first JuliaHealth monthly meeting! This month’s meeting will be a little different: we are running for 2 hours to reflect on this past year, ...
discourse.julialang.org
January 27, 2025 at 9:40 PM
Just gave a two-day #JuiaLang workshop, and the fastest and the most improved code (after some performance tips) won a mug. People can get really competitive when you put a leaderboard on screen😜.
January 14, 2025 at 2:50 PM
Reposted by Carlos Castillo Passi
Excited to say that for the first time ever, JuliaHealth will be hosting a mini-Symposium at @juliacon.bsky.social 2025!

More details to come but we are looking forward to hearing from YOU! Excited to hear submissions about talks, demos, and tutorials! 🧪 🛟🩺

#medsky #julialang
With thanks to @cncastillo.bsky.social and JuliaHealth folks, we have submitted this proposal to @juliacon.bsky.social! 🎉🎉🎉

If accepted, this will be the first ever JuliaHealth Mini-Symposium at JuliaCon! 😱

Excited to share how #julialang is used across health research! 🧪 🛟🩺

#academicsky #medsky
Hey folks, we have a final request for comments for our JuliaHealth Mini-Symposium draft submission! 🧪 🛟🩺

Have any final thoughts? Click on the link to learn more! We will be submitting December 1st!

Let's bring #julialang to health research, together!

#medsky #AcademicTwitter #publicHealth
December 22, 2024 at 11:52 PM
Reposted by Carlos Castillo Passi
With thanks to @cncastillo.bsky.social and JuliaHealth folks, we have submitted this proposal to @juliacon.bsky.social! 🎉🎉🎉

If accepted, this will be the first ever JuliaHealth Mini-Symposium at JuliaCon! 😱

Excited to share how #julialang is used across health research! 🧪 🛟🩺

#academicsky #medsky
Hey folks, we have a final request for comments for our JuliaHealth Mini-Symposium draft submission! 🧪 🛟🩺

Have any final thoughts? Click on the link to learn more! We will be submitting December 1st!

Let's bring #julialang to health research, together!

#medsky #AcademicTwitter #publicHealth
JuliaHealth Mini-Symposium Draft Comments
Hi folks! 👋 We are looking for final comments about our JuliaHealth Mini-Symposium draft submission we have created! You can view the draft here: JuliaHealth Mini-Symposium - JuliaCon 2025 - Google D...
discourse.julialang.org
December 4, 2024 at 4:22 PM
Wow! KomaMRI.jl was mentioned in a talk at MRI Together by Charles McGrath, where he discussed CMRsim, another fantastic open-source MRI simulator!

Could this be the publicity we need to cross 1k downloads? (Currently at 993🙉)

github.com/JuliaHealth/...

#JuliaLang #MRI #OpenSource
December 3, 2024 at 11:58 PM
Nothing better than replicating previous results but 200x faster using #JuliaLang 😎

Columns: 1987, 2018, 2024 (ours)
November 27, 2024 at 1:33 PM