pchivers's comments

pchivers | 13 years ago | on: A real fMRI high: My ecstasy brain scan

It's highly unlikely that you were using pure MDMA.

http://news.nationalpost.com/2012/02/05/ecstasy-related-deat...

"Ecstasy is so consistently adulterated that when pure MDMA turns up on the street, it’s likely be to sold on the street under the name MDMA or sometimes “Molly.” Corporal Luc Chicoine, the national co-ordinator for the RCMP’s pharmaceutical and synthetic drug operations, has worked on the street in drug operations for 18 years and said he can’t remember ever seeing pure MDMA."

http://news.nationalpost.com/2012/03/19/deaths-spur-research...

"For a sense of just what might be in a given pill, Hudson points to Ecstasydata.org — a Sacramento-based website listing active ingredients and proportions in mailed-in samples — which has tested thousands of hits of “ecstasy” since 2001.

A growing majority contain no ecstasy at all. Since 2010, 61% of 533 samples tested had no MDMA, with 111 containing the drug, and another 96 some combination of MDMA and other chemicals. Of 27 Canadian samples studied since 2010, 14 active chemicals were discovered, including caffeine, methamphetamine, benzylpiperazine (BZP) and procaine."

pchivers | 13 years ago | on: H - The surprising truth about heroin and addiction

>If heroin really is "so good," why does it have such a tiny share of the illegal drug market? Marijuana is more than 45 times as popular.

One possible reason is that people are squeamish about needles and uncomfortable consuming drugs intravenously.

pchivers | 13 years ago | on: Who's the Boss? There Isn't One

I don't know if it's possible to figure out which is the chicken and which is the egg in these cases.

Semco, a Brazilian manufacturing company, has been using a "boss-less" style of management since the 1980s. From what I understand they were not exceptionally successful before they implemented this management style.

http://en.wikipedia.org/wiki/Ricardo_Semler

pchivers | 14 years ago | on: Is Psychology About to Come Undone?

Richard Feynman on reproducibility in science:

"When I was at Cornell, I often talked to the people in the psychology department. One of the students told me she wanted to do an experiment that went something like this--it had been found by others that under certain circumstances, X, rats did something, A. She was curious as to whether, if she changed the circumstances to Y, they would still do A. So her proposal was to do the experiment under circumstances Y and see if they still did A.

I explained to her that it was necessary first to repeat in her laboratory the experiment of the other person--to do it under condition X to see if she could also get result A, and then change to Y and see if A changed. Then she would know that the real difference was the thing she thought she had under control.

She was very delighted with this new idea, and went to her professor. And his reply was, no, you cannot do that, because the experiment has already been done and you would be wasting time. This was in about 1947 or so, and it seems to have been the general policy then to not try to repeat psychological experiments, but only to change the conditions and see what happens."

(from "Cargo Cult Science")

pchivers | 16 years ago | on: Disintermediating Doctors: Going direct to the lab?

The article says these tests can be "at a cost that is as much as 80 percent less than going through a doctor", what can explain that kind of discrepancy besides rampant corruption in the "official" medical lab work market?

The difference is that one is paid for by a health insurance company, and the other is paid for out of pocket by the consumer. The second group is much more price sensitive.

pchivers | 16 years ago | on: Bingo Card Creator Annual Report

So you made $18,525 in profits, and figure that worked out to $125-$150 an hour. That means you worked somewhere between 124 and 148 hours over the entire year, or less than 3 hours a week. Is this correct? If so, then it is very impressive...
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