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I made a quite similar app 7 years ago. https://melanoma.jenevoldsen.com/

May have been in the training data.


That's great! I used the publicly available images from the ISIC challenge dataset which are CC licensed.


Sorry, my point was not that you had taken the idea or the images (I also used ISIC).

I just considered that the language model (Gemini) may have been especially effective at coding this specific app idea, sine my old app (which is on GitHub) was probably in the data it was trained on.


The same author has a great series of tutorials for making looping animations, where the animation appears longer than the length of the loop. It also introduces Perlin noise, which I've found quite useful in a few unrelated projects.

https://bleuje.com/tutorials/

Here is an example of a 10-minute movie in a 6.3-second looping GIF. https://bsky.app/profile/johsenevoldsen.bsky.social/post/3lm...


Thank you for all the kind responses.

I also want to make a similar article, where I calculate an ECG for the simulation, and then make and explain the changes necessary to make the ECG look realistic. A main challenge will be that the depolarization has to happen very fast relative to the repolarization, which may be computationally difficult for a cell-based simulation.


Also cool would be the inverse. Going from ECG to plausible simulated RD dynamics.


Indeed, but that problem is just so much more complex.


Thank you all for the interest in the article and the kind feedback.

I'm a medical doctor with an interest in engineering and coding. My PhD was quite focused on signal analysis and coding, and my supervisor is a medical engineer.


I made https://literature-clock.jenevoldsen.com/

It is based upon a Kindle project [1] and initially I just used the quote library from that project (which is based on a crowd-sourced collection of quotes by The Guardian [2]).

Later, a lot of quotes have been added by kind strangers through GitHub issues and pull-requests [3].

[1] https://www.instructables.com/Literary-Clock-Made-From-E-rea...

[2] https://www.theguardian.com/books/booksblog/2014/jun/26/lite...

[3] https://github.com/JohannesNE/literature-clock/blob/master/l...


The quote list is pretty cool, I wonder if there are other languages available?


There is this fork which has a few different languages and some other cool features. I believe the non-english quotes are mostly machine translations of the quotes in my repo. https://literatureclock.netlify.app/?locale=pt-BR


It will also just make up book quotes...

> show book quotes that mention the time 16:36

3. "She glanced at her phone. 16:36. She had just enough time to grab a quick snack before her evening class started. She rummaged through the kitchen and found a granola bar:" (From "Pride and Prejudice" by Jane Austen)


That was from a previously classified martial edition of P&P written for the CIA.

The quote is incorrect due to a typo. She went to the kitchen to locate her granola bear to take on the reconnaissance trip to St. Petersburg.


Ah, yep, checks out.


Kmonad for Linux


I recently published a paper, where we explain how an FDA approved prediction model, build into a widely used cardiac monitor was developed with an incredibly biased method.

https://doi.org/10.1097/ALN.0000000000004320

Basically, the training and validation data was engineered so an important range for one of the predictor variables was only present in one of the outcomes, making perfect prediction possible for these cases.

I summarize the paper in this Twitter thread: https://twitter.com/JohsEnevoldsen/status/156164115389992960...


Sorry for asking, but how is this relevant to the article?


Fair question. The model we comment on both suffer from the problem described in the article but also a more severe problem:

The developers sampled obvious cases og hypotension and nonhypotension, and trained the model to distinguish those. And also validated it on data that was similarly dichotomous. In reality the outcome is often between these two scenarios.

But worse, they also introduce a more severe problem where as range of an important predictor is only available in the hypotension outcome.


I quit research forever after I was ignored pointing out a similar problem in our predictive model.


I can only imagine the frustration. Just getting this through peer-review took half a year, but at least there was the academic currency of a publication to motivate me.


Thanks for explaining!


Sorry for asking, but how is it not?


Do you agree that it’s ok to pose a question whenever you don’t understand?


I’m not sure where you got this form of communication where you respond to everything with a question, and I assume you mean well, but it comes across as patronizing and de-humanizing to try to follow these “rules to winning arguments passively”, or whatever it is.

Indeed, the confusion here is (I think) because your first comment

> Sorry for asking, but how is this relevant to the article?

Sounds accusatory.

Please don’t respond to this with a question.


The basic idea of that kind of question is to find the minimal place of agreement. And then understand where one deviates.

Going back the path of arguments to common ground if you will. It works quite well in my experience if you’re interested in genuine discussion.

PS: how something “sounds” is really difficult to say in a written medium. It might say more about the reader than the writer.


> PS: how something “sounds” is really difficult to say in a written medium. It might say more about the reader than the writer.

No, it’s not difficult. And not it’s not the reader. When multiple readers all agree about the same interpretation of the writer. It might have been unintentional on the part of the writer, but that doesn’t make it “difficult” Or the readers fault.


I think what youre trying to encourage is open ended discussion? It's my opinion that this only tends to work IRL or in online mediums with more moderation e.g. wikipedia, stackoverflow.

Random open ended discussion can be good, but I bet it's wise to assume tht most random musings arent really as interesting as you might think.

In any case thanks for clarifying.


Ironically, that's exactly what NovemberWhiskey is doing here :)


This has to be intentional no?


The problem is quite subtle, though obvious in retrospect. I've seen a paper from a separate, academic, research group make similar model with the exact same problem.

The problem would, however, have been clear, if the model was compared to simply using the current mean blood pressure (MAP) as a predictor of hypotension, because MAP is the problematic predictor variable. Instead, the model was only compared to short-term changes in MAP (ΔMAP), which is obviously nonsensical and has an AUROC of ~0.55.


Hm, reading the linked tweets the problem seems like a big screaming red target on the side of a white barn, not a feature engineering subtlety. It seems like the typical case of the drunk guy looking for his keys under the streetlight. (Having insufficient data, and comparing the model to an arbitrarily picked one that just happens to be even worse. And then everyone including the FDA patting them on the back.)


I'm glad that you seem to get the severity! I'm just hesitant to ascribe malice.


I think it is the general incompetence of the "academia + R&D biz + regulation pipeline". (In the land of the blind the one-eyed is king, etc.)

It's sort of inevitable in such a non-teleological process. As in each step in it serves its own purpose, and so the whole thing doesn't really serve the purpose that we like to assume for it - ie. give us great thoughtful inventions. That's why it took so long to stop the Theranos train, that's why it takes so fucking long to roll out polyvalent vaccines (ie. all-in-one vaccines), and so on. (I'm picking on medtech here but there are many others, the Boeing + FAA MCAS fuckup, the absolute limpdick paralysis of nuclear power - it needed a combination of half the world on fire + prelude-to-WWIII to get it moving again, and so on.)


One thing I've learned, is people are definitely morons, so you're probably making the correct decision here.


> I decline to answer that question on the grounds that it might be used to incriminate me



I am quite sure you can see it in this and adjecent slices. https://data.lhncbc.nlm.nih.gov/public/Visible-Human/Additio...


compare this to the muscle marked C in this image from the original paper https://ars.els-cdn.com/content/image/1-s2.0-S09409602210020...


Brilliant!! Thanks for doing the hard work, I was too afraid to look at the slices.. Had you seen this 6 month ago, you would have made a major scientific discovery. I hope this will inspire you to look at other non-yet well classified anatomical features. noob question: do you know what different imaging technologies are used between your two links? Again thank you for your comment I wasn't expecting that someone would actually do the investigation!

The only other recent anatomical discovery I recall (not my field so there are probably many others), is a new kind of cell in the human eye, IIRC a full layer of one new cell type, traversing the eye vertically, but the layer is only 1 cell wide in thickness (hence why it has been discovered recently by accident) https://www.aaojournal.org/article/S0161-6420(13)00020-1/ful... discovery seems like a much harder challenge for you. Although this muscle give hope that there are non-too small features left to discover in our own bodies. https://www.google.com/search?q=Human+Corneal+Anatomy+Redefi...

edit how do you navigate the dataset? I don't see an online version only download and the png section can't be navigated from prev slice to next slice with keyboard arrows or GUI, is there a link to download everything as a folder of images instead of each image individually? plz if so share the link


the imaging tech in both cases is simply a picture of a thin slice of a frozen body. You can navigate the pictures here: https://www.nlm.nih.gov/databases/download/vhp.html

I looked in Additional-Head-Images/cryo/jpeg/fullSize/axial

I think there was also a discovery of some muscle around the knee a few years ago.


Thank u

> I think there was also a discovery of some muscle around the knee a few years ago.

But I don't understand, it is well known that (every?) bones are preserved between mammal species and that they only have morphisms (e.g' a bat hands.. completely crazy) But aren't muscles preserved between species as well? Not as much?


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