Barx [none/use name]

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Joined 4 months ago
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Cake day: May 20th, 2024

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  • You need oxidants to live. Issues stemming from oxidants are about levels of free radicals getting too high in the wrong places for too long.

    Getting good sleep, eating a balanced diet, reducing stress, and getting enough exercise are the best ways to reduce the chances of such a scenario. Realistically, these things are also just a way to maximize wellness and health overall and it is probably not very useful for most people to think of this in terms of oxidation.




  • When we and other known organisms take energy from food we are actually taking molecules with higher-energy electrons, converting them into the high-energy molecules our cellular processes can use to do make cell things happen, and producing very similar molecules with lower-energy electrons. Rather than infinitely accumulating these molecules, our cells dump low-energy electrons onto another molecule that is amenable and thereby convert into a molecule ready to accept high-energy molecules from food (with a bunch of steps in between).

    For us, as aerobes, the electron acceptor at the end of respiration is oxygen.

    Oxygen as an electron receptor is newer than several others. Anaerobes came first. It was only after photosynthesis had produced a ton of atmospheric oxygen that it became a viable option, really. But it O2 is a comparatively good electron acceptor because the process in which it accepts those electrons allows cells to grab quite a bit of energy from that last step. It is fairly “electron needy” compared to earlier electron acceptors.

    So, basically, aerobes get more energy per food unit (sugar molecule) than the vast majority of other creatures. You need it to live because it is an essential part of how your cells get food, namely, how it can recycle molecules at the last step of the respiration cycle.


  • Barx [none/use name]@hexbear.nettoScience Memes@mander.xyzOxygen
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    1 day ago

    The dietary antioxidant fad is mostly BS. They’re supposedly meant to counteract oxidative stress and specifically free radicals. Both of those things are part of a healthy life and you would die without them. So any real impact is not so simple as “just counteract those bad things”. Dietary antioxidants don’t always lead to higher intracellular antioxidant levels, either.

    Some dietary antioxidants so lead to higher intracellular levels and may help buffer oxidative stress (like from exercise) but there isn’t much evidence that it doesn’t just boil down to “eating your vegetables is good for you”.


  • As a start, follow the 3-2-1 rule:

    • At least 3 copies of the data.

    • On at least 2 different devices / media.

    • At least 1 offsite backup.

    I would add one more thing: invest in a process for verifying that your backups are working. Like a test system that is occasionally restored to from backups.

    Let’s say what you care about most is photos. You will want to store them locally on a computer somewhere (one copy) and offsite somewhere (second copy). So all you need to do is figure out one more local or offsite location for your third copy. Offsite is probably best but is more expensive. I would encrypt the data and then store on the cloud for my main offsite backup. This way your data is private so it doesn’t matter that it is stored in someone else’s server.

    I am personally a fan of Borg backup because you can do incremental backups with a retention policy (like Macs’ Time Machine), the archive is deduped, and the archive can be encrypted.

    Consider this option:

    1. Your data raw on a server/computer in your home.

    2. An encrypted, deduped archive on that sane computer.

    3. That archive regularly copied to a second device (ideally another medium) and synchronized to a cloud file storage system.

    4. A backup restoration test process that takes the backups and shows that they restores important files, the right number, size, etc.

    If disaster strikes and all your local copies are toast, this strategy ensures you don’t lose important data. Regular restore testing ensures the remote copy is valid. If you have two cloyd copies, you are protected against one of the providers screwing up and removing data without you knowing and fixing it.





  • OWS was not well-organized. Palestinian solidarity groups are doing better. The key difference is in being able to coherently make informed decisions as a group and then act on them as one.

    Every OWS encampment was basically 5-30 orgs all doing their own thing and then fighting about horizontalism and being naive about how the cops and City Hall would treat them. We need to be able to act like 1-3 orgs (even if there are more), politically educate so we can avoid mistakes, and create good structure as early as possible so that expectations are set and time isn’t wasted and bad decisions are avoided.

    The US left is basically slowly relearning the basics of organizing. Get involved and make it go faster!





  • The main ways you’re exposed to microplastics is through ingestion and breathing it in.

    To limit ingestion, yes the main thing to do is to avoid food and drink that comes in plastic containers. Reducing your consumption of processed foods will help with this. Eating mostly produce is a simpler way to approach this. Even though produce may often be transported in plastic, if you wash it before consumption you’ll have done pretty well. Ideally you would also have a reverse osmosis filter at home, as your water probably has microplastics as well (but less than bottled water!).

    To limit breathing it in, yes avoid frequent exposure to busy roads. They are often full of tire dust that is getting kicked up. This is cumulative, though. Walking by a busy street once is no big deal. Walking along one twice a day may add up.

    Overall, however, to address microplastics we will have to control the production of plastics and the use of plastics in the first place. For example, there would be a lot less tire dust if we used more rail to get around. And there would be less need for bottled water if water fountains were ubiquitous and so were standardized stainless steel water bottles. In addition, we could use biodegradable plastics for more packaging so that they don’t accumulate in bodies or the environment.

    But this last point, despite being the only real solution, will literally require the overthrow of capitalism. I’m for this and am happy to talk about it more, but it is a lot.



  • The company you work for is not your friend. If it is their body can they will use it to their benefit. Any benefit you receive will be incidental or simply part if their propaganda to get you to wear it for them.

    It will be used, primarily, to surveil employees. They will track your habits and ensure you are aware that every single thing you do for your shift is something your boss or their boss or their boss can come back to you with and reprimand you for. They will try to set performance targets that can be compared to your videos so they can tell you what an algorithm or a petty middle manager says you are doing wrong. Too much time helping a customer. You’re not folding clothes fast enough. Walk faster. No sitting. They will set keywords. Union. Break. Curse words. Your bosses’ names. They might not even review these things. The intimidation is enough. Maybe you’ll get new policies. See that black guy? Follow him. Get video. The algorithm said to do it so it can’t be racist. We’ll pass it along to the cops.

    Companies wouldn’t pay for it if they didn’t see a business angle and the obvious ones are control over employees and being able to use more video for “liability” defense.


  • The working class cannot win without overthrowing the owner class. The owner class is the ruling class and functions, under capitalism, to extract from the working class and make capital into more capital. It cannot escape this role so long as capitalism exists and the owner class is in charge. The fundamental mechanisms by which that system works is coercive on both classes. “Nice” members of the owner class are hammered into complacency through failure and exit (becoming working class again) or abandonment of their principals. Or they luck out and are minor and largely irrelevant, facing no competitors or predators. Real solutions require that we organize and spread class consciousness.

    On an individual level, you can try to protect yourself from some of the most extreme economic violences, but they are inherently limited. Fiat currency only has value because the issuer is “good for it” and you can use it as capital and for personal purchases of commodities. Crypto is not money at all, it is an unlicensed security. If your interest is in money-like things, I would recommend inflation hedge-alikes gold and real estate. But these require you to already have significant savings. And they are something to hawk in order to leave the country and cannot replace a functional economic base or allow you to weather a true crisis staying in the country. Having a backup shelf-stable food supply and means to boil water is also a good idea.

    Our fates are all tied together under this economic system. We will quickly starve and die of preventable disease in a real, sustained crisis, as it will disrupt agriculture and utilities. Only a stable productive base, a real economy that produces what humans need, can provide when borders close or trade halts. And, realistically, everything you can do as an inflation hedge is much better when done at the community level. Mutual aid is more effective than a personal bean stash (do both!). A network of like-minded people can secure travel and estimate when to leave vs. fight. You can buy real estate with less capital if you go in together. Etc etc.



  • You have to set a goal of what you want to understand and why you want to understand it, then read accordingly. If your goal is to know the usual number of eggs laid by a bird because you are trying to identify one from its nest in your yard, sure just read some Wikipedia and maybe read its sources. If you need to understand a broad topic in the social sciences in order to do your job or organize politically, well sucks yo be you, you need to spend months to years getting a handle on the various schools of thought and approaching them humbly and critically, reading many books.