@juandesant@astrodon.social
@juandesant@astrodon.social avatar

juandesant

@juandesant@astrodon.social

PhD in radio astronomy and VO; Joint ALMA Observatory Development Systems Engineer. Previously, Head of Software Product Management and Software Systems Engineer at SKAO (joined March 2014). I have worked for @iaacsic @ESO @almaobs @DataObsCL. He/him.

I try to boost only images with useful/meaningful alt-text. Might unboost after reviewing it…

Avatar: myself looking down, with a “crown” of lamps.

Background: Pen and paper sketch of ALMA by Olivia H. Wilkins.

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runjaj, to random Spanish
@runjaj@mastodon.social avatar

TIL que para una función de distribución de probabilidad, el primer momento es la esperanza, el segundo es el momento central o varianza, el tercero o momento estándar cuantifica la asimetría estadística y el cuarto momento estándar es la curtosis.

https://es.wikipedia.org/wiki/Momento_(matemáticas)

juandesant,
@juandesant@astrodon.social avatar

@runjaj en astronomía también se habla de momento cero como el promedio de la distribución. Y se calcula para cada píxel en un cubo de datos.

El resto se considera como momento n-simo.

NanoRaptor, to random
@NanoRaptor@bitbang.social avatar

5.25" vs 5.5" floppy disks.

KNOW THE DIFFERENCE.

juandesant,
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@tj @NanoRaptor I’m most intrigued by 7.5” floppies…

juandesant, to random
@juandesant@astrodon.social avatar

At some point in the mid 2000’s I had a certain fame in the Mac world in Spain, and because of the tooling similarities I was asked to give a talk on how to move from Mac programming to Palm OS programming.

Later in the day someone was speaking to me about the talk, and how good Juande had been, and I could not understand they were not recognizing me.

1/2
https://twit.social/@glennf/112514972564147401

juandesant,
@juandesant@astrodon.social avatar

@glennf then I realized I had given the talk earlier with my contact lenses, while I was wearing my glasses.

I tried to give my best “Clark Kent removing his glasses” impression… and boy, was he surprised!

So Jerry Siegel and Joe Shuster were right: you just need glasses and a cloth change to disguise being Superman… and even more so a mere human being 😉

2/2

javisamo, to random Spanish
@javisamo@mastodon.social avatar

Leyendo un artículo de cómo ChatGPT ayuda en la enseñanza de las matemáticas: los cálculos* a menudo son incorrectos, las gráficas están mal y las explicaciones no pasan de los casos típicos, pero es tremandamente útil y motivador para el alumno.

Una y otra vez dependiendo del campo (medicina, derecho, etc.) los usuarios valoran más el formato de las explicaciones que el contenido...y la disponibilidad absoluta.

*no calcula

juandesant,
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@javisamo lo que te dice que crear formas de que gente formada pueda estar disponible para la no formada puede tener valor social y económico… pero implica compartir ambos valores. Con la “IA” el valor se lo queda el “patrón” de esa “IA”.

ChrisMayLA6, to Horizon
@ChrisMayLA6@zirk.us avatar

So the good news is that the bill to exonerate the SubPostmasters gained Royal Assent last night, freeing up the fixed compensation scheme for those whose convictions are now quashed (or allowing them to apply to have their individual case assessed).

The, perhaps, not so good news, as much legal commentary has been focusing on is the (potential) precedent it sets for governments to reverse the decisions of Courts.

In this case it would seem pretty just, but in the future?

juandesant,
@juandesant@astrodon.social avatar

@ChrisMayLA6 this is a case that went one way with the evidence presented to the court. What I would find really missing is prosecution of those that willingly misled the courts.

juandesant,
@juandesant@astrodon.social avatar

@ChrisMayLA6 I think this just highlights that democracy is not an end result, it needs to be workerd on continuously.

The worst thing that can happen is for people to either become complacent, or say there is nothing that we can do. When enough people do that, you live in a democracy by name only.

juandesant, to random
@juandesant@astrodon.social avatar

Ich liebe, das hier ins Fediversum normales ist, viele Sprache to benutzen und zu reden. Es felts gut, das Leute freer sind, mit ihrem am meistens benutzen Sprache zu schreiben… oder einer andere Sprache, wenn sie willen.

jensclasen, to random German
@jensclasen@mastodon.social avatar

The German word "Lebensmittel" means

  • groceries, food

The word "Mittelpunkt" means

  • centre

But: The word "Lebensmittelpunkt" does not mean "food point".
It can mean:

  • centre of one's life

or

  • main place of residence

Enjoy our language!

juandesant,
@juandesant@astrodon.social avatar

@jensclasen If I'm not mistaken, Lebensmittel would translate directly to “means of living”. A similar construct exists in Spanish, “medio de subsistencia”. For Lebensmittlepunkt, I see Lebens acting as an adjective to Mittelpunkt, so it cannot be the point for means of living, but the life´s middle point.

juandesant,
@juandesant@astrodon.social avatar

@fiee @jensclasen and Mittelslebenspunkt for a crisis 😉

juandesant, to random
@juandesant@astrodon.social avatar

Sorry to hear that the European Southern Observatory (ESO) has suffered a cyber-incident 1 that restricted access to email and certain platforms... measures put in place since the ALMA Cybersecurity incident 2 might have saved a much longer downtime!

jackyan, to DuckDuckGo
@jackyan@mastodon.social avatar

Bingo! Or -go! , , , and down? I hope a ton of people are switching to @Mojeek today. https://mojeek.com

juandesant,
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@jackyan @Mojeek at least for DuckDuckGo the bang processing is done before, so I can escape to other search engines in the meantime…

juandesant, (edited )
@juandesant@astrodon.social avatar

@jackyan @Mojeek well I just tried !mojeek in DuckDuckGo and it worked…

juandesant,
@juandesant@astrodon.social avatar

@jackyan @Mojeek sorry, I did not realize of the autocorrect from !mojeek to !modern until I saw your reply… !modern does nothing, and it just ignores it in the search.

brucelawson, to random
@brucelawson@vivaldi.net avatar

In UK (where I am) Facebook is going to start using my data to train its AI. I apparently "have the right" to object. And if my objection is honoured, they won't use my data any more. Honest!

juandesant, (edited )
@juandesant@astrodon.social avatar

@brucelawson even if the UK is no longer in the EU, they copied the GDPR into their data protection law. Have they changed it recently? Because if not, they still have to ask for explicit consent for a new use of your data.

Of course, if the UK data protection officer has signaled that it will do nothing, that clears it up…

And what about Northern Ireland?

danielpunkass, (edited ) to random
@danielpunkass@mastodon.social avatar

A bug I filed with Apple in March is fixed in macOS 14.5. Two month turnaround. Thanks, Apple! https://mastodon.social/@danielpunkass/112058378904740286

juandesant,
@juandesant@astrodon.social avatar

@danielpunkass good to see AppleScript still matters to them…

juandesant, to random
@juandesant@astrodon.social avatar

My colleague Cristina García-Miró took some pictures about my talk on Monday. I spoke mostly about the engineering and programmatic updates from the Wideband Sensitivity Upgrade, and the teams behind it. Sean’s talk today (see link) focuses on the advantages of the WSU to astronomers.

https://astrodon.social/@juandesant/112483716032483127

juandesant, to random
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juandesant,
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Lots of work at the CDL having to do with the ALMA Wideband Sensitivity Upgrade and Band 6 version 2.

juandesant,
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And of course NRAO’s Central Development Lab is heavily invested in the next generation VLA (ngVLA)

juandesant, to random
@juandesant@astrodon.social avatar

Coming next, Yashwant Gupta will talk about the GMRT activities.

(We’ve been going quickly, so we’re killing time to get the program aligned for people hopping across sections.)

juandesant, (edited ) to random
@juandesant@astrodon.social avatar

Next up is Stephanie Smith, with an update about ATNF, that includes Parkes (Murriyang), ATCA, ASKAP, and the future SKA1_Low.

Plus, the Long Baseline Array.

juandesant, (edited )
@juandesant@astrodon.social avatar

Great result about the polarization of radio emissions from magnetars from Parkes/Murriyang.

juandesant,
@juandesant@astrodon.social avatar

And also great results from the Australian SKA precursor, a survey-oriented array.

juandesant,
@juandesant@astrodon.social avatar

Finally, an upgrade to ASKAP to be better at detecting Fast Radio Bursts

MartinEscardo, to random
@MartinEscardo@mathstodon.xyz avatar

Is there a way to input accents in a Mac similar to the way Linux does it, which is more natural and requires less remembering?

The default way in a Mac is awful. But I am not here to complain, just to try to get a better solution.

juandesant,
@juandesant@astrodon.social avatar

@MartinEscardo my solution (not so much for accents as for special characters) is a mixture of Unicode.It (installed as a service; see link below) and the built-in macOS text replacement facility (which sinchronizes with iOS, btw).

https://www.unicodeit.net

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