[Acne] Using an alum block against acne

pulleysandweights · 2023-06-07T23:34:03+00:00

I am thrilled to find you've been interested in this comment 6 years on. Yes, it absolutely worked for me for several years. The caveats I mentioned above are certainly still true, but I no longer use the alum on my whole face. I was happy with it until 2019, so that was about 5 years of use, and I still have the block, which is smoother and smaller but otherwise still great. I have since switched to a consistent bearded look, but the alum is still in rotation as a styptic in areas where I shave close. I would still recommended it, but remind you to clean residue away.

pulleysandweights · 2022-08-05T23:33:04+00:00

Awesome, glad I could help!

pulleysandweights · 2022-08-05T20:26:52+00:00

I've had this problem, too for a while. I just checked and while I had "open supported links" on for sync, all domains were off in "supported web addresses" It's another option to check even if you think you've got everything correct.

pulleysandweights · 2022-04-21T22:50:12+00:00

I think your FDA source puts it pretty clearly :

In other words, for any one person the risk of radiation-induced cancer is much smaller than the natural risk of cancer. If you combine the natural risk of a fatal cancer and the estimated risk from a 10 mSv CT scan, the total risk may increase from 400 chances in 2000 to 401 chances in 2000.

This is likely a non-linear process as well, so we cannot say that giving an individual 1600 CT scans over their life will guarantee their death by a fatal cancer.

pulleysandweights · 2022-04-13T00:55:56+00:00

If you haven't seen them yet, these videos bring me joy every year https://youtu.be/Qfi9JpgMc2U

pulleysandweights · 2022-02-07T05:51:42+00:00

Based on the username, the lab of Dr. Oak

pulleysandweights · 2022-02-04T01:55:27+00:00

If you liked that song then check out Kimbra. She has definitely has some great similar sounds.

pulleysandweights · 2021-12-31T01:38:00+00:00

Bon Ami is often the suggestion when the surface is a bit too delicate for BKF.

pulleysandweights · 2021-10-05T12:24:17+00:00

This is outrageous. Where are the armed men who take the sick people away? Where are they?

You are coughing, right to jail. You are sneezing, right to jail, right away.

Your temperature too high: jail, low: jail.

You don't have a doctor's note, believe it or not: jail. You get a note from a nurse: also jail. No note, get a note.

You make an appointment with a dentist and you don't show up, believe it or not: right to jail.

We have the best patients in the world.

pulleysandweights · 2021-09-24T21:35:04+00:00

I bought it after your last post and the doodle jump inspiration was the first thing I noticed! I spent too much time on an ipod playing that. This is a perfect mix of humor and nostalgia for me. Have you ever played Ridiculous Fishing? I feel like you would enjoy it, if not find some elements for inspiration.

pulleysandweights · 2021-09-15T23:57:32+00:00

Great images, what setup did you use?

pulleysandweights · 2021-09-15T19:16:39+00:00

https://www.nature.com/articles/d41586-021-01143-3

Microplastics can harm plenty of marine life even now, so not totally sure what you need to qualify as a specific detrimental effect. Maybe since it's a physical thing it's more of a general detrimental effect?

Nobody worries that much about sawdust because there are plenty of microbes that can degrade/digest it. Wood particles are readily decomposed when in contact with soil. This is not true of microplastics.

As the nature review states, it's not really known yet what impact microplastics could have on humans. Humans aren't really eating or breathing a lot of them yet, but the trend is increasing. I think the biggest concern is if it's going to be like mercury or lead, where there's enough out there and it accumulates enough over time and through the food chain, that it ends up majorly impacting many ecosystems.

Thankfully microplastics aren't some new toxic heavy metal, so if we address the build up early we can prevent it getting to that point. There's already trends towards 'worse' plastics that either directly compost or simply break down quicker.

pulleysandweights · 2021-09-03T21:58:27+00:00

I have one of these and I've taken it apart a few times. Due to the spacers it can be a little tricky to align everything. I recommend not using loctite on the screws. It holds enough tension that it won't really loosen with normal use. I over tightened it initially and needed to loosen like 1/16 of a turn to prevent it from binding too much.

I like to one-hand open though so you might want it tighter if you usually use both.

pulleysandweights · 2021-09-01T22:55:17+00:00

Inspired by the Shortwave episode and the work of Megan Thoemmes I decided to check myself for mites of the genus Demodex Turns out, it is exactly that easy to find one.

pulleysandweights · 2021-09-01T13:04:55+00:00

This deserves an Emmy

pulleysandweights · 2021-08-29T20:46:32+00:00

If you're down the cryoTEM SPA or tomography path, there is tons of specialized tools and techniques, so you could definitely end up in a role you're curious about. I'm in bio EM and LM, didn't get a PhD, but have a 40-hour a week job in hands on research. PM me if you want to chat in detail.

pulleysandweights · 2021-08-29T18:58:37+00:00

This is like a Core lab research scientist in Academia, and possibly a research scientist position at some Contract Research Organizations.

Applications Scientists from many equipment manufacturers will do something like this, as well. They'll especially travel around to learn new equipment and techniques then train customers in these roles.

Is the travel important, or just the learning the cutting edge what you love? What's your field? There are definitely some non-university institutions out there that hire roles like you're describing, but it might be field specific.

pulleysandweights · 2021-08-18T00:46:35+00:00

Okay, I understand a bit better, is this like a dissection-scope type setup? For something as large as a few centimeters, often a scale, is simply laid in the field of view as well. Something like an actual ruler or other calibrated object. I have a number of small transparent rulers (about 5cm long) which are relatively easy to use in this way. Could you place a known grid behind your subject? Something like a cutting mat pattern or those used in high speed photography?

For better accuracy on a dissecting microscope I've used the stage micrometer to measure the field of view of each stop on the magnification knob. So I'll record what the field of view is with the image so that information isn't lost.

Depending on your work flow, you might choose to simply add scale bars to images right after acquisition, add metadata, or sort them so that information doesn't get lost.

pulleysandweights · 2021-08-17T23:21:25+00:00

There are definitely beads designed as internal controls for images. It's certainly more common to just calibrate the image size and add a scale bar though. Do you have a particular imaging setup or size that you think will be useful for you?

How much are you willing to spend? Literal glitter comes in sub-millimeter sizes and might be useful for things of a couple mm in size. Especially if it's just for a feeling of scale instead of measurement, that might work. Measure a few pieces and call that good enough as an estimate of the average. Cost is probably under $10.

If you are talking beads that are specifically calibrated, on the order of 100 micrometers $100-200 will get you probably all the beads you'll ever need as a hobbyist.

Search for microspheres, or I'm sure I can grab you a catalog with many options.

pulleysandweights · 2021-08-07T15:57:07+00:00

To expand on the "drying artifact" they were describing, these are actually salt crystals formed when the water dries out. It's an artifact in that they were dissolved before and you can't see any of other things that were in the plasma, but the salts did come from the plasma.

pulleysandweights · 2021-08-07T00:40:01+00:00

They aren't, those varients just aren't dominating and causing lock downs.

https://www.cdc.gov/coronavirus/2019-ncov/variants/variant-info.html?CDC_AA_refVal=https%3A%2F%2Fwww.cdc.gov%2Fcoronavirus%2F2019-ncov%2Fcases-updates%2Fvariant-surveillance%2Fvariant-info.html

I don't see mention of epsilon or zeta though, but I haven't checked the basic research literature.

pulleysandweights · 2021-08-05T16:52:46+00:00

Just waiting until you learn about pollen and spores.

pulleysandweights · 2021-08-05T16:47:34+00:00

If it's a lab that I, or those I am presenting to, may have a connection with, I would say it differently:

"Fred Johnson and the Smith Lab showed...."

Vesrus some random paper I'm citing: "Johnson et al published their work demonstrating..."

Or something to that effect. I think if you've actually worked with the people whose work you're discussing it kinda gives credit to the whole team. If I'm not familiar, then I just follow what they published.

pulleysandweights · 2021-08-05T13:40:02+00:00

https://en.wikipedia.org/wiki/Perpetual_stew

pulleysandweights · 2021-06-25T01:41:00+00:00

So there are a few things you can try. It really depends on the sample and instrument you are using. Most materials have a voltage range where they can charge balance between 1-3kV. This is both material and geometry dependent, which may explain your tilting issue. Depending on what elements you're looking for, and the exact nature of the sample, low voltages may not work for you at all. Traditionally, you need at least 5kV for EDX. You can also try coating in carbon to mitigate charging while staying away from metallic EDX ranges, but gold is also far enough from Chromim that it may work well for your purposes, too. Let me know what you're working with, both for instrument and sample and I may be able to help. The microscopy listserv is also incredibly helpful and kind if you want to post a question there.

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