j_p

Did the guy test the water right in front of you? Did he actually mix reagents, or use a test strip? How long did he run the water before taking the sample? Service labs are in an incredibly competitive business; most have relatively low rates for home owners for drinking water and soil. Why not get your so-very-supportive chemistry instructor to do water testing as an instructional lab? If your school is an older building you should worry more if the water tastes good; lead is sweet.

Contrapositive? What's that? It sounds like the mood of a verb in Latin; when the action is contrary to the intention of the speaker. I digress. I am referring logical statements of contradiction that I was taught in middle school math, I think when we were being introduced to algebraic proofs: Statement: If A then B Contradictions: If A then not B. If not A then B. And then there is: If not A then not B; which is not a contradiction; I believe the last is the obverse of the statement. I believe one of the first is the inverse of the statement; but I can not remember what the other one is called. Thank you for your efforts.

Can anyone refresh my memory on the math definitions of these terms? And what the third terms is?

Perhaps happy people are less likely to adopt unhealthy behaviors, such as smoking, drinking, and eating entire pints of Ben & Jerry's. Before something can be measured, it must be defined; the measurement system selected will probably define the thing being measured. As to the marketing issue, unhappiness encourages people to make unnecessary purchases.

Well' date=' no, it doesn't. If, as you say, white males experience a different social environment [and I would agree'], the importance of genetic factors is not supported. [i refer to: "White males are the group less subjected to racism/discrimination for society, further they are not exposed to more abuse of any type then any other racial group."] Your post ignores that White Males are subject to differ stressors; I refer to the heavy social pressure to succeed. If a woman does not get a promotion, she can comfort herself with assumptions of sexism and a pint of Ben & Jerry's; a white man will not always have external social reasons for a failure. So one could argue that white men in eurocentric societies are more vunerable to APD because of environmental stressors. And don't forget about experimental bias; if most of the group studied is of one group [i.e. white males], the profile developed will reflect the behavior and personality characteristics of that group. Given that males and females are socialized very differently from birth in my society, and how they are socialized, it is only to be expected that fewer females openly demonstrate the traits associated with APD.

Change the routines; smoke only in uncomfortable places, like alleys and poorly ventilated basements; quit drinking first; keep a bottle of water with you at all times, as sports bottle you suck on is best.

I've been out of the neurobiological loop for a while; what is memory? And don't we forget most of our experiences, so isn't most of our behavior based on forgotten events?

Klanger, my dog does the same thing; and he always throws the ball back to us, instead of dropping it. I've hear Border Collies are very smart. Well, yes; most functional interpretations are humourless. But I would love to read people discuss the function of laughter in different cultures.

I disapprove of strictly functional interpretations of behavior of all animals; they are so often based on cultural assumptions that are then given scientific validation by the theories which they underlie.

Ensured or assured? Oh, no, I have descended to Quality humour; I have to go to sleep. Tell the raven to watch out for those pigs.

You've fallen for that scenario? The truth is much darker. Those of us who get the Raven jokes will realize that those of you who get the pig jokes are obviously a degenerate subspecies and set out to annihilate you. When we succeed, we will be so grateful to the Raven that we will set him up as a god; a dark and brutal [but shiny and very stylish] age will descend upon us, and we will spend our lives in hot smokey dive bars listening to Blues. And the cats will laugh and the pigs will fly.

You know, I don't think they do think you are stupid; I bet they think you are curious. And you are, you were tempted; the letter was like a puzzle, you wanted to solve it.

I believe it is called "play". I suspect that humour is very species specific; no matter how much we like our pets, we won't get most of their jokes.

Although I disagree with you, I am not arguing with you. I do not mean to imply the prison system does a perfect job of protecting people. Or that all mistakes [cutting off healthy limbs] are forgiveable. I will not go off on reliability of evidence, and statistics about economic status and severity of punishment, and all those other arguments people will get into. That's not the issue. You are in serious pain over this; you really need help coming to terms with this beyond, 'There, there, honey, don't worry. We won't let the bad men get you.' My last post was intended NOT to comfort you [well, that was obvious], but to give you a few ideas for grappling with the issue of evil. BTW, you don't sound particularly naive or hyper-sensitive to me; you sound like you're too old to believe the pretty little lies adults tell children to make them feel safe, and that hurts at first. Bad things happen, good people suffer, and we all get sick about it.

People who publicly protest executions are not [usually] defending the convicted, they are protesting killing by the state. If you are a Christian, you must believe there is no room for repentance after death. I think denying all opportunity for repentance and redemption is wrong. I think the criminal court and prison system exists to protect people and not to exact revenge on those convicted. People, including judges and jury members, can make mistakes; innocent people can be convicted. You are young; you are still outraged by suffering and injustice; I am much older and I know that suffering is our lot and you, too, will suffer, though we hope not at all as severely. Three other points: Arguing in favor of killing people because it is cheaper that keeping them alive is appalling; arguing in favor of killing people because one was ordered to do so was very popular at Nurmeburg, and is, if possible, more appalling. "An eye for an eye" was a model of liberalism and recognition of the rights of the convicted in it's day. Your teacher picked the wrong case to start a debate; no-one wants to defend a child rapist.

Diagnostic question: Does opening the door stop the noise?

Well, my Sunday afternoon is shot; I'll probably spend all day roaming the ADLS; I love link sites [forget the HPLC trainees, let 'em read a book]. I've referenced the Trouble-shooting sections of the Manuals; in addition to giving the information one actually needs the run the instruments, they give a short paragraph on generally theory, and imply a lot of technical details. But the reason I threw out the question is that there is so MUCH information on the net that it is difficult to find what you need. Fortunately, there are so many people on the net that some-one probably has found it before. Roaming around the web is fun, but no always the most efficient way of solving a problem. Oh, wow, I just found a paper chromatography reference; now all I need is some ground up Autumn leaves. ASDL is going into favorites. Thanks again.

Yes, that is exactly what I need; I was just hoping I didn't have to write it myself. I really want to get this manual done. TY

I was reading your posts with the homework vampire. But I sympathize; high school chemistry is usually terrible. TY.

Yes; collision theory and kinetics are the stuff I have to avoid. And I don't even need to deal with gradients [we don't like gradients]. Thank you for your help; I really thought I'd get three of four links. The outline in your first post will be very helpful; I can work that into something approachable [THAT is the word for what I need]. The theory of LC is not all that difficult to grasp, but all the explanation I've found dive right into alphas and Ns and Ks and k-primes ... I need an old high school lab exercise that demonstrates the principles with filter paper and ink and a nasty organic solvent. Thanks again

But who is hiding their true colors? Me? Gandhi? Or Hussein?

That is good for an outline, but not quite what I need. I understand HPLC, and, more importantly, can run and troubleshoot one. But I don't know how to describe the function and operation without using the Greek alphabet and terms like "differential migration". I have spent hours slogging through scientific instrumentation manuals looking for nuggets of information both practical and intelligible. I am writing a training document that can assume very little. I need something between "...migrate according to the non-covalent interactions of the compounds with the stationary phase" and "...sticks to the stuff inside this metal tube here and then gets pushed off with this stuff in the jar." Imagine you are trying to get investors in a small start-up and you have to explain to people with lots of money that you want them to give you what an HPLC does; that's the kind of language I need. And I just can not find it anywhere.

This is so odd. When I answered 27 questions I was Gandhi. When I answered 45, I was Saddam Hussein.

I am writing a training document and am addressing HPLCs. I can not just reference the instruction manual; it's five separate manuals, dealing primarily with operations that are run by the software anyhow. I have to write a SHORT document describing the basic theory and instrumentation of HPLC that assumes no more than a single general chemistry course in a very bad high-school. Can any-one suggest any public references I could crib? [That's not cheating; its "not re-inventing the wheel".]