pglpm

joined 1 year ago
[–] pglpm@lemmy.ca 9 points 1 day ago* (last edited 1 day ago)

This is a fascinating phenomenon – but fully within current theory. And there's no "inversion of the arrow of time", despite what the sensationalistic, misleading title seems to imply. From the recent paper (my emphasis):

Our results, over a range of pulse durations and optical depths, are consistent with the recent theoretical prediction that the mean atomic excitation time caused by a transmitted photon (as measured via the time integral of the observed phase shift) equals the group delay experienced by the light.

The theoretical explanation is given in this paper:

We examine this problem using the weak-value formalism and show that the time a transmitted photon spends as an atomic excitation is equal to the group delay, which can take on positive or negative values.

It is essentially related to the difference between phase and group velocity of waves.

One more example of how nature – as we currently understand it – offers amazing, fascinating, unexpected phenomena. It doesn't need misleading sensationalism.

[–] pglpm@lemmy.ca 2 points 1 week ago

Fully agree.

It's worth posting the blog post you linked.

 

cross-posted from: https://lemmy.ca/post/29254007

https://www.lieffcabraser.com/antitrust/academic-journals/

"On September 12, 2024, Lieff Cabraser and co-counsel at Justice Catalyst Law filed a federal antitrust lawsuit against six commercial publishers of academic journals, including Elsevier, Springer Nature, Taylor and Francis, Sage, Wiley, and Wolters Kluwer, on behalf of a proposed class of scientists and scholars who provided manuscripts or peer review, alleging that these publishers conspired to unlawfully appropriate billions of dollars that would otherwise have funded scientific research."

 

https://www.lieffcabraser.com/antitrust/academic-journals/

https://www.forbes.com/sites/michaeltnietzel/2024/09/16/scientists-file-antitrust-lawsuit-against-six-journal-publishers/

https://www.reuters.com/legal/litigation/academic-publishers-face-class-action-over-peer-review-pay-other-restrictions-2024-09-13/

"On September 12, 2024, Lieff Cabraser and co-counsel at Justice Catalyst Law filed a federal antitrust lawsuit against six commercial publishers of academic journals, including Elsevier, Springer Nature, Taylor and Francis, Sage, Wiley, and Wolters Kluwer, on behalf of a proposed class of scientists and scholars who provided manuscripts or peer review, alleging that these publishers conspired to unlawfully appropriate billions of dollars that would otherwise have funded scientific research."

"Deutsche Bank aptly describes the Scheme as a “bizarre” “triple pay system” whereby “the state funds most of the research, pays the salaries of most of those checking the quality of the research, and then buys most of the published product.”"

[–] pglpm@lemmy.ca 2 points 3 weeks ago

Personally I disagree on value of sex/nude scenes – but it's a subjective matter of course. Your final argument is absolutely fair and logical, and very general too. Extremely well put – I subscribe 110% to it!

[–] pglpm@lemmy.ca 30 points 3 weeks ago* (last edited 3 weeks ago) (3 children)

It's utter bullshit from the very start. First, it isn't true that the Ricci curvature can be written as they do in eqn (1). Second, in eqn (2) the Einstein tensor (middle term) cannot be replaced by the Ricci tensor (right-hand term), unless the Ricci scalar (R) is zero, which only happens when there's no energy. They nonchalantly do that replacement without even a hint of explanation.

Elsevier and ScienceDirect should feel ashamed. They can go f**k themselves.

[–] pglpm@lemmy.ca 5 points 3 weeks ago (2 children)

It seems to me these scenes are introduced in films to sexualize them. Most often than not they don't add anything to the story. But blood & sex get more viewers. So I find the whole thing hypocritical.

Brings me to mind an episode of the hilarious series "Coupling", where Jeff says that the actress in the film "The Piano" (?) was naked in the whole film. His friends say she wasn't, it was only a scene in the film. And Jeff replies "it depends on how you watch it" 🤣

[–] pglpm@lemmy.ca 2 points 1 month ago

Agree 110%! It's sad because it pushes back those people who were curious about alternatives and were willing to try. Hopefully things will improve with time...

[–] pglpm@lemmy.ca 1 points 1 month ago (2 children)

I've tried different clients: Element web, desktop, and android, and FluffyChat desktop and android. The problems seems to come, as other have written, when the matrix.org server is involved: it's people from their handle there which experience glitches joining rooms in other servers. It seems this "part" of the fediverse still needs a lot of development.

 

cross-posted from: https://lemmy.ca/post/27749197

I've been trying to use Matrix to replace sites like Discord or Slack. But it seems that if a user creates an invitation-only room in a server, then invited users who are registered on other servers get errors when trying to join. Not very useful error messages either: "Failed to join room". (In my case, I tried creating accounts and rooms at nitro.chat and then at converser.eu, but friends registered at matrix.org don't manage to join).

Quite a let-down. Anyone who's facing the same problem and has maybe managed to solve it?

[–] pglpm@lemmy.ca 5 points 1 month ago

Looks very promising! thank you for sharing. Seems worth trying and supporting.

[–] pglpm@lemmy.ca 4 points 1 month ago

I didn't know about !matrix, cheers!!

87
submitted 1 month ago* (last edited 1 month ago) by pglpm@lemmy.ca to c/fediverse@lemmy.world
 

I've been trying to use Matrix to replace sites like Discord or Slack. But it seems that if a user creates an invitation-only room in a server, then invited users who are registered on other servers get errors when trying to join. Not very useful error messages either: "Failed to join room". (In my case, I tried creating accounts and rooms at nitro.chat and then at converser.eu, but friends registered at matrix.org don't manage to join).

Quite a let-down. Anyone who's facing the same problem and has maybe managed to solve it?

[–] pglpm@lemmy.ca 3 points 1 month ago

Which can be further summarized: academics (🙋🏻) are basically a bunch of idiotic sheep, despite being in academia.

See also https://pluralistic.net/2024/08/16/the-public-sphere/#not-the-elsevier

 

Doesn't CrowdStrike have more important things to do right now than try to take down a parody site?

That's what IT consultant David Senk wondered when CrowdStrike sent a Digital Millennium Copyright Act (DMCA) takedown notice targeting his parody site ClownStrike.

Senk created ClownStrike in the aftermath of the largest IT outage the world has ever seen—which CrowdStrike blamed on a buggy security update that shut down systems and incited prolonged chaos in airports, hospitals, and businesses worldwide....

[–] pglpm@lemmy.ca 1 points 1 month ago

Fantastic, this is extremely helpful, thank you! 🥇 I wanted to test a couple of distros for my Thinkpad, and I'll make sure to check and save this kind of information from live USBs.

 

Can't help imagining Saitama putting a definite end, without so much back-and-forth, to Mahito's hateful smirk. One punch is all that's needed.

 

...and thought of randomly posting it here.

 

Personal websites often give an email address for contact, as a mailto:blah@blah.blah link. And the address is often obfuscated in a variety of ways to avoid its harvesting by spam bots.

If one wants to give one's Matrix address in a website, what's the correct way of writing it as link? is it recognized as any kind of MIME (like mailto:)?

And is Matrix-address spamming something possible and common? In this case, how should one obfuscate a Matrix address given in a website?

Lots of questions from a noob :) Thank you for your explanations!

Edit for others with the same question: as per @QuazarOmega@lemmy.world's explanation in the comments, the Matrix address can be given as the link

https://matrix.to/#/@[yourusername]:[your.server]
35
submitted 1 year ago* (last edited 1 year ago) by pglpm@lemmy.ca to c/firefox@lemmy.ml
 

In my desktop Firefox I use Cookie Autodelete to keep a whitelist of sites whose cookies won't be deleted. All other cookies are deleted as soon as all tabs for a particular site are closed.

Android's Firefox, from what I gather, only give you two choices: delete all cookies upon quitting (not tab closing), or save them across sessions.

Unfortunately the extension above does not work on Firefox Android, and I haven't found any other alternatives.

Do you know of any alternatives or other solutions, to get a behaviour similar to the desktop one? (And also: how come that extension is not supported on Firefox on Android?)

Cheers!

 

cross-posted from: https://lemmy.ca/post/2147796

We identify "life" with the capability of self-replication plus some other features. In other conditions, for instance on other planets, it could be possible for self-replication to happen in a way different from the RNA/DNA-based one.

I remember stumbling, years ago, on research and papers that studied this kind of possibility. But I'm having a hard time finding the old references or new ones.

Do you have interesting papers and research material to share about this? Thank you!

 

cross-posted from: https://lemmy.ca/post/2147796

We identify "life" with the capability of self-replication plus some other features. In other conditions, for instance on other planets, it could be possible for self-replication to happen in a way different from the RNA/DNA-based one.

I remember stumbling, years ago, on research and papers that studied this kind of possibility. But I'm having a hard time finding the old references or new ones.

Do you have interesting papers and research material to share about this? Thank you!

 

cross-posted from: https://lemmy.ca/post/2147796

We identify "life" with the capability of self-replication plus some other features. In other conditions, for instance on other planets, it could be possible for self-replication to happen in a way different from the RNA/DNA-based one.

I remember stumbling, years ago, on research and papers that studied this kind of possibility. But I'm having a hard time finding the old references or new ones.

Do you have interesting papers and research material to share about this? Thank you!

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