btrettel

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361.
by btrettel 5y ago
I recall once that I emailed someone who wrote a paper I liked very much congratulating them on the excellent paper. I didn't get a response until probably around a month later. They thanked me, said that my email made them very happy,
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by btrettel 5y ago
In practice, if I get a differential equation that I don't recognize and I want a closed-form solution, I check out http://eqworld.ipmnet.ru/ or one of the books produced by the same folks. It's like looking up in
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by btrettel 5y ago
From the article: > ### Hard and soft links as non-solutions > Soft links have a nearly opposite set of problems as hard links – soft links can span different file systems, but they generally don’t track the target files getting moved
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by btrettel 5y ago
> However, while I agree with the premise, I think the precise factors that create this issue are not sufficiently discussed or agreed upon (Not enough money goes into science research? Regulation imposes too heavy a burden on the output
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by btrettel 5y ago
I'm glad to see that several other commenters here are picking up on the fact that many PhDs don't actually make novel contributions, contrary to the suggestions of the article [0][1][2]. To add my own 2 cents, I think many people
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by btrettel 5y ago
Thanks for posting. "Fiat news" is a nice term. I've said before that certain things in science are "canonized" and then rarely questioned. What you wrote describes that exactly.
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by btrettel 5y ago
> (And I'm aware of examples of bad research, retracted papers, etc, these are mostly issues for laypeople and the media, they have almost no impact on researchers and occur with insignificant frequency) I think these issues occur f
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by btrettel 5y ago
On Google Patents you can get a shortcut to the USPTO Global Dossier if you search for "External Links". Looks like the USPTO Global Dossier is down for WIPO documents right now but the Espacenet Global Dossier is up: https:&#x2F
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by btrettel 5y ago
Type the application number into Global Dossier if it's published, and take a look at the "file wrapper" (term for all the documents listed). You'll get a better idea of what the examiner did. https://globaldo
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by btrettel 5y ago
Is there a list of journals or publishers that are on Deepdyve? Seems to me that the only way to know if an article is on there is to sign up.
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by btrettel 5y ago
While I'm not aware of anything quite like what you've described, some possibilities for accessing the scientific literature as an individual are discussed here: https://onscienceandacademia.org/t/how-do-you-a
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by btrettel 5y ago
Leslie Lamport has some similar narratives for his papers: https://lamport.azurewebsites.net/pubs/pubs.html Previous discussion on HN: https://news.ycombinator.com/item?id=23344666
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by btrettel 5y ago
There are many different ways to do what you'd like. The easiest starting point would probably be this tutorial: https://github.com/barbagroup/CFDPython But that won't handle turbulence. The real "turbul
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by btrettel 5y ago
In the future, rather than cluttering up the thread, bookmark the page in your browser or use the "favorite" button here on HN.
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by btrettel 6y ago
As a (junior) patent examiner, the weaknesses of text search were discussed in my training and have become very clear over time. Many people today think that text search is the "be-all and end-all" of search, but if one wants to b
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by btrettel 6y ago
A similar technology was examined in a class I took back in 2016. As I recall, the ultimate reason why this and similar technologies are not in use has nothing to do with whether the technology works or not. Apparently there is fairly littl
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by btrettel 6y ago
In another comment I mentioned the USPTO's part-time program: https://news.ycombinator.com/item?id=24729649 I can say unequivocally that at the USPTO as a patent examiner you would not be expected to squeeze 5 days of
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by btrettel 6y ago
I've been thinking about part-time work lately too, which makes me wonder: Which US companies/organizations offer part-time jobs with benefits? I work as a patent examiner right now and I noticed that the USPTO might let you swi
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by btrettel 6y ago
> But the bulk of the gains in the real world come from applying numerical technique on them. > Most of the people doing research use numerical methods (often from first principles, so almost no analytical approach applied). They basi
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by btrettel 6y ago
Great question. Right now I'm working mostly on intuition, though I certainly could formalize the process. One thing I'm planning to do for my current project is to make the solution match the linearized solution for short times.
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by btrettel 6y ago
While I agree that the undergraduate ordinary differential equations class has major issues, numerical methods are not quite as easy and straightforward as you indicate. I've worked in computational fluid dynamics (CFD) before and ofte
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by btrettel 6y ago
Not quite. The Laplace transform only works for constant coefficient linear equations as far as I'm aware. And it is inappropriate for many boundary value problems, because it solves a problem over a domain from 0 to infinity when th
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by btrettel 6y ago
The unstated assumption in my comment was that I want to do the research myself. As I have a PhD, I am of course aware that advising students is a core part of the job of most professors.
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by btrettel 6y ago
> Sure, I have customers to assist, servers to manage (not that they need much management), and business accounting to do; but professors equally have classes to teach, students to supervise, and committees to attend. When I made this so
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by btrettel 6y ago
> Mathematicians do not yet know how to prove that they have a solution Probably just a typo, but it's not hard to find particular solutions. The question is more whether solutions exist for all reasonable initial conditions. Here&#
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by btrettel 6y ago
Another source of outrage on Twitter is the snark. There's one statistician on Twitter that I check periodically. They often post links to interesting papers. Unfortunately they often post snarky remarks as well. Recently they called N
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by btrettel 6y ago
> Have all the tractable asymptotic problems been solved? Definitely not. I think it's more that these approaches are viewed as not necessary as numerical approximations (implemented on a computer) are more accurate, often easier,
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by btrettel 6y ago
Most of the time people are impressed by analytical skills, it's not really justified in my view. Those skills aren't taught as much as they used to be. You can still pick them up, but it's mostly on your own now. (Probably s
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by btrettel 6y ago
I linked to Wikipedia, but I originally read the abstract of a different study, which might have examined diphenhydramine specifically rather than many anticholinergic drugs. The abstract of the article cited on Wikipedia makes it clear tha
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by btrettel 6y ago
I'd recommend against regularly taking anticholinergic drugs like diphenhydramine because they've been fairly clearly linked to cognitive decline in the elderly when taken regularly: https://en.wikipedia.org/wiki

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