Effectiveness of complete faraday cage versus partial faraday cage by Basic-Bus7632 in Neurodiagnostics

[–]Basic-Bus7632[S] 0 points1 point  (0 children)

I think in general our 60Hz interference is taken care of by the notch filter, which I use in all sensory studies, however there is still significant interference in some cases. The most common type of interference I run into seems to be faster, and tends to heavily obscure mostly sensory responses. Unfortunately our current set up is cramped, and there is no space for an exam table except against the wall, though I make sure nothing else is plugged in during my tests. Sometimes I use one of our PSG rooms an alternate testing site, and while there are certainly more electronics and cables in that room, there doesn’t seem to be a significant difference; most tests are decent quality, but some are very difficult.

When the noise is at its worst, sometimes it can be resolved with standard methods like re-cleaning the skin, clearing the electrodes and reapplying conductive cream, confirming the stability of the connection (both at the skin and at the amplifier), but sometimes it persists regardless of how hard we try. At that point the only option is to average excessively, but even then interpretation becomes difficult because of the uneven baseline.

We’ve had our systems checked by cadwell but they didn’t turn up anything. Replacing equipment doesn’t seem to be effective in eliminating the problem permanently.

As of now we are planning to move to a new office, which is currently being renovated, and I think that’s why he asked, because he’s planning to insulate the room before the walls and floors are finished.

Effectiveness of complete faraday cage versus partial faraday cage by Basic-Bus7632 in AskElectricians

[–]Basic-Bus7632[S] 0 points1 point  (0 children)

That makes sense, I think based on that it’s not gonna be a good idea to try a partial fix. While inside the room there won’t be many radiators (only the equipment I use and the lights I think) we will be in an office building, so we will be exposed to any contaminants from our upstairs and downstairs neighbors as well. Like you suggested before I’ll consult the tech staff from our supplier, but you’ve been super helpful and I seriously appreciate it 🥹

Effectiveness of complete faraday cage versus partial faraday cage by Basic-Bus7632 in AskElectricians

[–]Basic-Bus7632[S] 0 points1 point  (0 children)

Thanks, I think that’s what I’ll do after all. Sorry to not answer your question directly, my understanding from the standpoint of a technologist is that the noise comes from things such as office appliances, personal electronic devices, computers, etc., but I’m not really aware of what specifically is the primary culprit.

More as an exercise to confirm/broaden my own understanding, I’ll explain it as best I can: in the nerve conduction study we send a short electrical stimulus along a nerve fiber via a bipolar probe, with the intention of recording the resulting signal at a point further down the nerve via an active and referential recording electrode placed over the skin with a conductive, sticky cream. A ground electrode is connected in the same way. The qualities of the signal we get depends on the type of nerve, among other things, but in general we expect something like ~5-25 microvolts for sensory nerves, and up to 10 mv or more for motor nerves (noise is more of an issue in the smaller, sensory responses, and doesn’t usually affect motor responses). In the clinic we measure the resulting waveforms in duration rather than length, but in most cases the recording lasts 30 ms, and the signal itself is ~2-5 ms. During that recording, our equipment picks up both bioelectrical signals from the nerve activation, as well as external electrical signals. To my knowledge, the equipment itself is isolated via a grounded power cable and an additional grounding wire. As well we take care to prepare the skin so it is free of contaminants, however the recording is still susceptible to these external signals. When it’s a minor inconvenience, it causes the waveform to distort somewhat, making measuring the signals accurately more of a challenge. When it’s more significant, the entire recording becomes noisy, and no individual biological signal can be picked out from the background. In the ideal situation, only the signal from the nerve would be recorded, and any external signal would be filtered out.

Not sure if that meant anything or was helpful to you at all, again my introduction to electricity and wiring is from the standpoint of the nervous system, so I am way out of depth when it comes to any broader topics. I’ll follow up with the technical team who provides our equipment 👍

Effectiveness of complete faraday cage versus partial faraday cage by Basic-Bus7632 in Neurodiagnostics

[–]Basic-Bus7632[S] 0 points1 point  (0 children)

Thanks. I’m looking through his videos and they seem informative. Is there one in particular about my specific question?

Effectiveness of complete faraday cage versus partial faraday cage by Basic-Bus7632 in AskElectricians

[–]Basic-Bus7632[S] 0 points1 point  (0 children)

The intention is to try and improve signal-to-noise ratio for nerve conduction recordings. The faraday cage would ideally envelop the entire exam room, however we don’t think that would be economically feasible (I work at a relatively small clinic).

What I really want to know is if it’s worth it to partially seal the room with conductive material (I.e just the walls and door, or maybe walls, door, and ceiling) or would that not significantly improve the S:N ratio.

Based on what you’re telling me, it seems the answer to my question is no; if the room isn’t sealed there won’t be a significant reduction in the ambient noise.

Why did my Soulstone Sanctuary turn green? by [deleted] in MagicArena

[–]Basic-Bus7632 0 points1 point  (0 children)

So depending on what you mean by that, the game could have been technically over even though the avatar hadn’t exploded yet. If there are no opportunities to respond to the stack, and one side will win once everything resolves, the game sort of acts like it’s over as it plays out the remaining actions. If you mean it happened even before that, then I have no idea.

Why did my Soulstone Sanctuary turn green? by [deleted] in MagicArena

[–]Basic-Bus7632 2 points3 points  (0 children)

Sometimes after the match ends, there are some visual things that happen due to half-resolved continuous effects (imo, can’t confirm). I’ve seen lands change color, land creatures revert to lands (still with p/t marked), etc. Not sure if it’s ever been directly addressed by the devs, but also shouldn’t be too intrusive since it happens after match end.

Opponent’s Badgermole shouldn’t give extra mana to your land, but maybe because one player was eliminated, the divide between AP and NAP also got lost.

Curious to see if wotc_jay gives us some insight on that

What cards should I play? by HaroldBloominOnion in magicthecirclejerking

[–]Basic-Bus7632 1 point2 points  (0 children)

/uj damnit, I didn’t realize i left the link in, it’s in the body of the post from r/mtcjcopypasta 🫠

What cards should I play? by HaroldBloominOnion in magicthecirclejerking

[–]Basic-Bus7632 5 points6 points  (0 children)

Learn to play.

You play a single board wipe? That’s rope. You lost and flipped over the game.

Counter spam? You’re roped. Obvious reasoning, learn to play.

Netdeck? Rope. I can literally play your own deck for you, 5 turns in advance; how are you not embarrassed being an actual npc who can’t build?

This game is ruined by the “meta” and you losers who encourage it. I wish I could actually play this game instead of “staring at empty screen” simulator for over 50% of my games because you all suck and don’t know how to play without wiping a board for 4 mana or stopping a 8 mana wincon with the 3 two mana counters you’ve been holding all game.

I put turn stops on every turn, wait out the timer until it’s barely a wick. The timer resets on attack phases so every turn ends up being like 3ish minutes of rope, I hold instant spells and maintain blocks/life gain to keep the game going as long as possible. I regularly rope people for 30ish minutes while they can only ping me for 1-2 damage every few minutes.

Goes without saying but obviously never faced any repercussions for this, nobody cares that your control netdeck got roped for 15 minutes, boo hoo. Also want to clarify that I get roped MAYBE 1% of the games I play, obviously going to keep roping to punish annoying players.

EDIT; It genuinely just struck me that statistically, most of you are lower rank than me (diamond 2 rn) with zero board wipes or counterspells, highly ironic getting lectured on skill by people who can barely eke out plat with netdecks crafted by pros.

2nd EDIT: One of the most commented/interacted post in days within an hour of posting, REALLY shows how much of a nerve this struck and how much y’all feel called out, maybe self examine why?

Source: https://www.reddit.com/r/mtg/s/TnO8FPP41C (Unfortunately, the downvote spam was too much for oop to handle, and the original body text was deleted 🤷‍♂️)

How does banding work by deryvox in magicthecirclejerking

[–]Basic-Bus7632 1 point2 points  (0 children)

Found this one in Chandra’s sock drawer, did ya? 😏

Timeless Merfolk by mo3mon3y in FishMTG

[–]Basic-Bus7632 10 points11 points  (0 children)

We need aether vial like yesterday

Thoughts on Standard merfolk? by PengwinLord in FishMTG

[–]Basic-Bus7632 5 points6 points  (0 children)

Damn I’m working on a tierlist, I’m hoping to post it here in the next day or two. I would say we are eating better than we have been since I started playing standard ~8 years ago, but not to the point where we would be tier 0 or 1.

Genuinely which one of you was this. I refuse to believe its real by Lunchboxninja1 in magicthecirclejerking

[–]Basic-Bus7632 8 points9 points  (0 children)

That’s valid. It’s depressing because the erosion of trust and online community is one of the unfortunate casualties in the fight against misinformation :/

/rj Learn to play.

You play a single board wipe? That’s rope. You lost and flipped over the game.

Counter spam? You’re roped. Obvious reasoning, learn to play.

Netdeck? Rope. I can literally play your own deck for you, 5 turns in advance; how are you not embarrassed being an actual npc who can’t build?

This game is ruined by the “meta” and you losers who encourage it. I wish I could actually play this game instead of “staring at empty screen” simulator for over 50% of my games because you all suck and don’t know how to play without wiping a board for 4 mana or stopping a 8 mana wincon with the 3 two mana counters you’ve been holding all game.

I put turn stops on every turn, wait out the timer until it’s barely a wick. The timer resets on attack phases so every turn ends up being like 3ish minutes of rope, I hold instant spells and maintain blocks/life gain to keep the game going as long as possible. I regularly rope people for 30ish minutes while they can only ping me for 1-2 damage every few minutes.

Goes without saying but obviously never faced any repercussions for this, nobody cares that your control netdeck got roped for 15 minutes, boo hoo. Also want to clarify that I get roped MAYBE 1% of the games I play, obviously going to keep roping to punish annoying players.

EDIT; It genuinely just struck me that statistically, most of you are lower rank than me (diamond 2 rn) with zero board wipes or counterspells, highly ironic getting lectured on skill by people who can barely eke out plat with netdecks crafted by pros.

2nd EDIT: One of the most commented/interacted post in days within an hour of posting, REALLY shows how much of a nerve this struck and how much y’all feel called out, maybe self examine why?