• 24 Posts
Joined vor einem Jahr
Cake day: Dez. 19, 2021


My immediate suspicion when reading the title was that this would be a temporary effect, with the fungi providing a buffer by storing the mercury but eventually releasing the more toxic organic forms. But it turns out that they do transform the organic mercury form (at least methyl mercury) into the less toxic and volatile elemental mercury!

I had not learned about the mercury demethylation pathways before, and as far as I can tell (2021 review) the research on it is still relatively new, with many unknowns. Very cool stuff, thanks for sharing.

So, you experienced it during the first videos you watched but developed a tolerance as you kept watching them?

Interesting! Flakey pastry sounds do nothing for me, but they are indeed very characteristic.

I sleep like a baby during thunderstorms, they are very relaxing.

Interesting! Can you do that on purpose, or it happens when you contract the muscles in just the right way by accident?

Have you experienced ASMR?
'[ASMR](' - or 'Autonomous Sensory Meridian Response' exploded in popularity a few years ago as the ASMR youtube channels emerged. The YouTube videos do not trigger ASMR for me, unfortunately. However, it did bring the term to my attention, and when I read the wikipedia page something clicked - I finally had a term for a very strange sensation that I was never able to explain to others. For me, this ASMR response is not something that I can reproduce on purpose. But the times that it happens it usually occurs when someone else asks me something. For example, during middleschool I remember that sometimes a friend would stand next to me and ask me for a pencil. As I would retrieve the pencil, I would get into this dissociated-like state that was very peaceful and tingly, and I would not want it to stop. I would be very slow in retrieving the pencil and pretending I was still looking for it - and then I would ask some question to try to make the interaction longer because it felt so interesting. It still happens some times but is rare, and it occurs when I am busy in the office or the lab and someone comes and asks me something or for something while I am paying attention to something else. It is a very pleasurable state that is also very fragile - as if someone managed to scratch the perfect itchy spot in my brain for a moment. It is odd, and I think it fits the definition of ASMR perfectly. The only other way that I feel a similar effect but not as strong effect is when am getting a haircut the hairdraisser is cutting the hair in the back of my neck with the tiny trimmer. I am curious about other people's experience with this phenomenon, because I have not found many people that can relate to my experience. Have you felt this? Do you know what your triggers are? Do the YouTube videos do it for you?

Very cool. I understand part of it, but I will have to do some work to really get it.

Nature Communications has a transparent peer review process, and there was a nice discussion between authors and reviewers while trying to get this published - which is worth looking at if you are interested in the divided opinion during the peer-review process that the article mentions.

Paper (open access):

Peer-review file:

No. Many users never interact after approval, even if I approve right away.

I had issues while trying to setup the e-mail notifications and never got back to it, so new users won’t get notified when I do approve them. It is possible that some of them never return to check - that is one of my guesses. Is your instance configured to send the e-mail notification?

Crypto will always persist in some form, but the future of crypto as an institution—as something that might one day destabilize the big banks, or at least operate in parallel—has never been less certain.

I am optimistic on this. I like the technology, especially the more basic ‘digital cash’ crypto implementations, and I still think that crypto has a good chance of operating in parallel. The concept is revolutionary, and the technology is still going through the early phases of development. Decentralized exchanges and price stability will (hopefully) eventually arrive, and with that we will see an increase in adoption. Whether speculators win or lose money, or centralized exchanges turn out to be running sketchy operations, will cause ripples in the short term - but I don’t think that really changes the fundamental idea of private digital cash. The volatility at the moment makes it difficult for true adoption to really take off - users will often exchange fiat for crypto shortly before using it, or exchange crypto into fiat as soon as they receive it, in order to avoid the price fluctuations. But the hype and volatility can’t last forever… I think (or, I hope) that once the speculative hype cools off for a while and prices stabilize we will be able to see some progress.

That’s tragic. In the case of Zhan at least it seems like the company is being transparent and accepting that this likely ocurred due to a malfunction. Let’s see what that means in terms of actually taking some responsibility for it.

As for the second case, it says:

The Tesla center in Nanjing said that the maximum speed reached 150 kilometers per hour during the accident, and the electric switch was stepped on with no brakes, while Jing stressed that he had been stepping on the brakes

I don’t know what the electric switch is. Is this the accelerator?

It is kind of scary that the tools used to determine whether the user or the manufacturer are responsible for an accident like this one are installed and analyzed by the manufacturer. Or is there a trusted third party mediating this?

I am thinking about those explanatory videos where they ask you to pause the video and try to find the answer yourself before continuing. I always pause and try - it is fun. But sometimes after several unsuccessful attempts I get frustrated and I just skip to the answer so that I can move on. It would be great to have this option with other things in life… I enjoy the process of learning via trial and error, but having an AGI next to me so that I can cheat a little bit from time to time would be great.

Just read some of the discussion over why this project was stopped.

the concerns of its usage by trolls has been far greater amongst the community.

It pains me, because at some level, I think it’s a useful and missing function, however it’s antithetical the values of the fediverse.

I am probably being dull, but I don’t get it. Why is having a search engine to search over the fediverse a bad thing? Why does that help trolls? And how is this antithetical to the values of the fediverse?

This finding implies that the female beauty premium observed when education is in-person is likely to be chiefly a consequence of discrimination. On the contrary, for male students, there was still a significant beauty premium even after the introduction of online teaching. The latter finding suggests that for males in particular, beauty can be a productivity-enhancing attribute.

The conclusion that they are drawing here is much, much stronger than what I think is reasonable to conclude from their methods and data. I do not agree that the results imply this - which gives me the impression that the ‘imply’ here means that the data conforms to their pre-conceived hypothesis. A hypothesis that might be slightly tainted by their unconscious sexist bias.

But if he doesn’t even try to lie about this, the situation is extra hopeless.

Hey, great job! Thanks for the offer! At the moment I don’t have the time, but at some point in the hopefully near future I would like to invest some time into understanding how to program these fediverse interactions. I will look at your code to see how you have done this and maybe try find you then to ask some questions :)

I don’t know if this mindset will hold true with the new owner of Twitter though. I would assume Elon will do far worse things with the data.

I don’t know much about Elon Musk. But he strikes me as someone who would want to extract as much value as possible from data, and not as someone who thinks user privacy is something important to protect. Is this a topic that he has publicly spoken about?

Aha, that does make some difference. For example, my girlfriend takes birth control pills due to health-related reasons (and as far as I can tell, this is moderately common), so even though we do use condoms we would not be counted. Sorry for being lazy on this one, and thank you for doing the work of researching this in more depth ^_^

Oh, that’s great! So this is a ‘kbin’ instance rather than a ‘lemmy’ instance. I was not yet familiar with that project, thanks for pointing that out!

Avogadro 2 still has a long way to go. Too bad the original stopped being supported. Thank you for your contribution!

How have you optimized your Pi-hole?
A few months ago I set up a Pi-hole at home. I tried to create a decent blacklist by first adding some regexes I found online and then doing some manual optimization by finding ads and blocking the ad requester through the queries page. But in the end it did not work so well. I still get a lot of YouTube ads, for example. So I still rely on uBlock for my ad-blocking. I just read that Chrome is planning to start weakening ad blocker plugins. I use Firefox, but it is still worrying that the space could potentially keep moving in this direction over time. So I am now more invested in learning how to have more control over my ad-blocking. Has any of you managed to optimize your Pi-hole to the point that it is possible to browse the internet without an ad-blocker? If so, how did you do it? Are there other good ad-blocking alternatives?


[PDF] Aging-associated cognitive decline is reversed by D-serine supplementation
Summary D-serine, which acts on a type of N-methyl-D-aspartate receptors (NMDARs) is thought to be important for neuronal plasticity. As people age they produce less D-serine, and it is hypothesized that this is one of the reasons why it becomes more difficult to learn as we age. D-serine can be absorbed in the digestive tract and it can cross the blood-brain barrier. It is hypothesized that the D-serine levels of the aged brain can be restored via oral supplementation, reversing the cognitive decline to a degree. The experiment used to test age-related learning deficit is the following: a rat is trained to press one of two levers to receive food. Then, the experiments switch the correct lever, such that now the rat needs to press the other lever to get the reward. The cognitive flexibility is tested by measuring how long it changes for the rat to begin pressing the other lever. Young rats learn to press the other lever quickly, while older rats continue pressing the old lever for longer. When supplemented with D-serine, the ability of the old rats to re-learn which lever to press improves dramatically. They show that D-serine supplementation has no effect on the young rats' performance, and they show that this effect is dose dependent, supporting their original hypothesis that D-serine supplementation can restore some of the brain's plasticity that is lost as the rat ages.

Have you had success correcting your bad posture?
I slouch a lot, so my shoulders are a bit rounded at my neutral posture. I have tried to get into the habit of doing wall glides, stretching my chest, doing back exercises, and sitting properly. But after quite a few years of testing strategies, tools, and trying to build consistent habits, I usually manage to get two or three weeks of good progress but then fall back to the usual bad habits and my posture does not really improve. Do any of you have any success stories about correcting your bad posture? I would like to learn from your success!

Is there a simple way to remove a banned user's profile description?
A user was created in my instance to spam phishing links to some google sites that look like bank login sites and crypto wallets. I banned the user and removed their content, but the links were also added to the description in their profile page, and they still live there. Is there a way to delete the description through the UI? The only way that I can think of how to do that is to manually remove the description in the postgresql database.

E-mail server configuration
Hello! I have procrastinated configuring the e-mail server for my instance. I am looking into it and it is not entirely clear to me how I should go about it. I see that some docker-compose files have the following block added: ``` postfix: image: mwader/postfix-relay environment: - POSTFIX_myhostname=${domain} restart: "always" ``` But I don't understand whether this is supposed to work out-of-the box (which it did not for me when I tried), or if I need to set up the postfix server as one usually would and the postfix-relay somehow makes the connection between docker container and the already configured server. Is there a guide for complete beginners? I could not find one in the lemmy docs and I have never configured an e-mail server before. I am reading through the postfix documentation and already got some basics but there is a lot, and I am not sure that I am moving efficiently towards the end goal 😅

Would you be interested in being able to recover your forgotten password using PGP?
I was thinking about how one could go about recovering their forgotten password without providing an e-mail address. One way that I can think of is to have a section in one's profile for adding your GPG fingerprint. If you click "forgot password", the server can generate a code, encrypt it against your public key, and provide you with the PGP encrypted message block. You would then use your private key to decrypt the message, input the code, and change your password. I have not seen this type of password recovery being implemented in other sites, and I am not sure why. Is it that people are just not interested in having this option? Or maybe those who can keep a their private key secure are also usually able to keep their passwords secure and well-managed?

Personal attacks decrease user activity in social networking platforms (More specifically, Reddit)
[Link to full PDF](

[Question] VMWare vs vStack cloud server
I am currently running my instance using a VMWare cloud server with the following specs: 1 GB RAM / 1 Core / 30 GB SSD / 10 Mbps This costs 13.94 €/month. Using the same provider (, I can rent a vStack cloud server with: 1 GB RAM / 1 Core / 30 GB SSD / 50 Mbps For 4.55 €/month. I am using the more expensive option because this is my first self-hosted project and I did not realize the cheaper option was available when I originally set up the server. As I currently understand it, renting a VMWare is renting a physical machine, and renting a vStack is renting one of many virtual machines installed within a physical machine. Is this correct? And, are there any practical reasons not to "downgrade" to a vStack? When should someone choose a VMWare over a vStack?

Firefox appears to be down
I am not able to load any websites with Firefox on my PC despite having an internet connection. I went on Reddit and found other people complaining of the exact same issue, so it appears to be a problem with firefox: My phone's firefox browser works fine. What can cause a browser to fail this way?

Are there any flaws or problems with Nano?
I have been reading about cryptocurrencies, and I find Nano to be the most appealing on the basis that it appears to be a minimalist approach to digital cash - which is what I would like. I want to be able to pay online easily without needing a third party. I don't really need smart contracts or any other fancy crypto stuff to be tied directly to the digital currency. The mechanism of decentralization via Open Representative Voting appears to be much less wasteful than the competitive PoW algorithm that bitcoin uses, so that is quite sensible. I was concerned about the concept of the public ledger allowing others to look into your wallet and trace back transactions, but learning about trust-less mixing has dissipated those concerns. I see people speaking wonders about Nano in nano-related forums (of course), but outside of those I get the feeling that people either pay little attention to it or generally dislike the currency... I have read many claims about spam attacks, but those appear to have been dealt with successfully looking at the recent updates and discussions on the official forum. So, are there any obvious negatives that I am missing?