Cumulative General Science/Technology Quiz

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I think Brighteye meant lactic acid build-up from exercise. :lol:

As for the real scoop. this is what I'm recalling atm: Basically, lactate is the byproduct of anaerobic glucose metabolism in muscle, which should eventually occur with strenuous exercise. There used to be a theory that the lactate bound directly to muscle as an inhibitor, but that was disproven in favor of the lactate causing pH changes. I'm pretty sure there have been new clarifications in the past 1-2 years, but I can't recall what they were atm.

If I'm right, I nominate Mise to ask the next question. :lol:
 
I think that if Sidhe is really as fed-up with this format as he appears to be, he should start a new Cumulative General Science and Technology Thread, where he can propose the rules he prefers. After all, it's not as if Thunderfall has proclaimed that there can only be ONE CGSTQ thread ;)

If his rules turn out to be the preferred format, then we will see a sort of 'evolution' of the format ;)
 
Was that too hard? It was news recently, with an article and editorial in The Journal of Physiology.
 
I didn't think so, but over the my years of education, I'd heard so many stories on it that I couldn't remember which was considered the most accurate. :) I thought it was a simple case of altering the pH leading to altering of protein structure.
 
Was that too hard? It was news recently, with an article and editorial in The Journal of Physiology.

I think we have more of a physics / maths memberbase than a medical memberbase.
 
I think that if Sidhe is really as fed-up with this format as he appears to be, he should start a new Cumulative General Science and Technology Thread, where he can propose the rules he prefers. After all, it's not as if Thunderfall has proclaimed that there can only be ONE CGSTQ thread ;)

If his rules turn out to be the preferred format, then we will see a sort of 'evolution' of the format ;)

Well I can understand how they might be sensible in a part of the forum that doesn't see much traffic, but because when a question is up this thread moves with some speed, I don't see why three days is sensible? 2 maybe, even 1. Just because something works in the CIII forum there's no reason it will work here, where there is a high turn over. If you ask me its up to Catharsis as its his thread, but something tells me he doesn't post any more. Maybe someone could change it at 1000 posts in a new thread? All I ask is that people bear it in mind, its obvious that 3 days is arbitrary and inappropriate. Last word on the subject.
 
I had thought that lactic acid was something that maybe any exercise people would have known about too.
Anyway, new question:
To reach statistical significance (a probability of occurring by chance of less than 0.05), what's the minimum number of experimental subjects required?

It's very simple maths, but maybe people won't realise how to translate the question.
 
IIRC, the "error" is just sqrt(n), where n is the number of trials. To get the percentage error, it's sqrt(n)/n, which is 1/sqrt(n). So, take the reciprocal of 0.05 and square it: that's 20^2 = 400.
 
I had thought that lactic acid was something that maybe any exercise people would have known about too.
Anyway, new question:
To reach statistical significance (a probability of occurring by chance of less than 0.05), what's the minimum number of experimental subjects required?

It's very simple maths, but maybe people won't realise how to translate the question.

30, I guess.
 
Well I can understand how they might be sensible in a part of the forum that doesn't see much traffic, but because when a question is up this thread moves with some speed, I don't see why three days is sensible? 2 maybe, even 1. Just because something works in the CIII forum there's no reason it will work here, where there is a high turn over. If you ask me its up to Catharsis as its his thread, but something tells me he doesn't post any more. Maybe someone could change it at 1000 posts in a new thread? All I ask is that people bear it in mind, its obvious that 3 days is arbitrary and inappropriate. Last word on the subject.

I do still post, but I haven't known the answer to any recent questions.

This format works well in the World History forum, which has a higher turnover than this forum, and I'm not going to change the rules mid-way through the thread. However, this thread is coming towards the end of its life, so when it reaches 1000 posts, if you get here fast enough, you can start the new one. 'Kay? :)

As for the question, linfeixb27's answer looks familiar.
 
You are happy with it? It's the only forum of any size I've seen with such a system? No accounting for taste, I presume it was implemented in the annals of history in threads with significantly low turnover, and people being what they are never thought to question the law. And I wont be fast enough and the new thread starter will no doubt implement the same rather unnecessary and outdated rules, so never mind. If everyone's happy with threads stalling for prolonged periods, then there's no more to say about it is there? Case closed.
 
No, and no. We need to show that a change occurs in whatever we're measuring with a probability that the change is due to chance of 0.05 or less.
Error doesn't really come into it.
 
Is this assuming a Normal distribution?

To reach statistical significance (a probability of occurring by chance of less than 0.05), what's the minimum number of experimental subjects required?

It's very simple maths, but maybe people won't realise how to translate the question.
 
Closer.
Assume whatever distribution you like, as long as the null hypothesis doesn't make it a skewed distribution. That does distort the answer.
 
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