HDTenEightyP/NetNews huggingface dataset:
From: schmidt@auvax1.adelphi.edu
Subject: RE: Is lead solder bad for me?
Organization: Adelphi University, Garden City NY
Date: Wed, 18 Nov 1992 03:55:11 GMT

In article <2b0a35e8.4a6b@grace.cri.nz>, srgxnbs@grace.cri.nz writes:
>>From: kehoe@netcom.com (Thomas David Kehoe)
>>Subj: Is lead solder bad for me?
>>Date: Tue, 17 Nov 1992 17:55:50 GMT
>>
>>Will I get lead poisoning from breathing the smoke
>>from solder?  I work next to an open window, and leave
>>the soldering iron on the window sill, but when I'm
>>doing close soldering work, I can't avoid breathing
>>the smoke form the solder.
>>
(stuff deleted)
>>
>>I've switched to lead-free solder, which is 97% tin and
>>3% silver (available at Radio Shack).  The label still
>>says to avoid breathing the smoke.  Why doesn't everyone
>>use th
> 
> I had an article a long time ago that claimed a correlation between 
> soldering and asthma (I'm mildly asthmatic and I do react). The 
> article blamed the _flux_ and recommended ventilation, I use a small 
> fan to blow the vapour away, works ok.

Some years ago I had a student here who was going to help out with some wiring. 
It turned out he had a severe asthma attack from the flux fumes whenever he
tried to do any soldering.  I also had someone react badly to the fumes from GC
contact cleaner, when he spilled a little.  This was the liquid stuff which GC
used to sell in a small bottle.  Yes, electronics chemicals can cause problems,
even to hobbyists.  There has been a lot of discussion of these dangers in the
art world, but but not as much in the electronics hobby world.

Then there was the time someone sat on the soldering iron I was using :-( .
> 
>>-- 
>>"Why my thoughts are my own, when they are in, but when they are out
>>they are another's." - Susannah Martin, hanged for witchcraft, 1692.
>>Thomas David Kehoe          kehoe@netcom.com         (408) 354-5926
-- 
*******************************************************************************
John H. Schmidt, P.E.              |Internet: schmidt@auvax1.adelphi.edu
Technical Director, WBAU           |Phone--Days     (212)456-4218
Adelphi University                 |       Evenings (516)877-6400
Garden City, New York 11530        |Fax-------------(212)456-2424
*******************************************************************************
Newsgroups: sci.electronics
Subject: PCB Fabrication
From: mat@coral.math.arizona.edu (Mathew D. Watson)
Date: 23 Nov 92 14:28:22 GMT
Reply-To: mat@secundus.opt-sci.arizona.edu
Organization: The Vacuum

About 15 years ago I did a lot of photo etching of PCB's and metal
panels using processes similar to that described by the gentleman from
Iowa State (Sorry, but I can't get at your real name right now).

Although you can get very good results using these methods, you end up
having to use some very toxic and noxious sutff.  So even though I'd
like to experiment again, my conscience bugs me.

Lately I've seen articles about board cleaning solvents based on
something like citrus fruits that are suposed to be more
environmentally benign.  I wonder if there are photoresist/developer
pairs available that are also benign to me and the rest of the world?

--Mat
Newsgroups: sci.electronics
From: markz@ssc.com (Mark Zenier)
Subject: Re: Want to convert RGB to NTSC signals
Organization: SSC, Inc.,  Seattle, WA
Date: Sat, 21 Nov 1992 01:21:36 GMT
X-Newsreader: TIN [version 1.1 PL6]

jhwhit01@ulkyvx.louisville.edu wrote:
: In article <1992Nov19.232950.24188@serval.net.wsu.edu>, Leonard Hermens <lhermens@eecs.wsu.edu> writes:
: > I need to convert RGB (red-green-blue) video signals to NTSC TV
: > standard video. I have RGB signals, black and white NTSC, and composite
: > sync signals available, but I don't know what device/circuit/wiring
: > is required to convert the RGB signals to NTSC.  
:   
: Check out the Motorola MC1377P RGB-to-PAL/NTSC encoder chip.  

: The 1377P will do
: what you want with little additional parts (resistors, caps, colorburst crystal
: or TTL clock signal).

And the special parts (the delay line and chroma bandpass transfomer)
are available from Digi-key in the TOKO section.  



Mark Zenier  markz@ssc.wa.com  

From: tgg@otter.hpl.hp.com (Tom Gardner)
Date: Fri, 20 Nov 1992 16:25:47 GMT
Subject: Re: does dbuV = uV ???
Organization: Hewlett-Packard Laboratories, Bristol, UK.
Newsgroups: sci.electronics

dBuV means the usual deciBel scale with the reference point (i.e. 0dBuV)
at 1uV. In short: "dB relative to 1uV". Similarly, dBm is "dB relative to 
1mW".

Newsgroups: sci.electronics
From: hacrat@CATFISH.LCS.MIT.EDU (Nate Osgood)
Subject: Directions for building strobe circuits
Organization: MIT Laboratory for Computer Science
Date: Tue, 17 Nov 1992 00:50:04 GMT


I'm considering trying to build a setup making use of a rapidly
flashing strobe bulb.  I've had some luck finding the bulbs (thanks to
people on this list!), but haven't been able to find any references to
books or kits detailing the construction of circuits for driving the
bulbs.  I've found a few kits that operate in the range of 1 to 2
flashes per second, but I'm looking for a much greater flash rate
(probably from about 10-100 Hz).  


Would anyone on this list happen be able to refer me to a source for
either a kit or literature that would discuss the construction of such
a circuit?

Any help will be enormously appreciated!  

Nate
-- 
-------------------------------------------------------------------------------
Nate Osgood			| ARPA: hacrat@catfish.lcs.mit.edu
CS Graduate Student		| 
MIT LCS Room NE43-636		| UUCP: ...!uunet!catfish.lcs.mit.edu!hacrat
From: dnl@goanna.cs.rmit.oz.au (David IGOR Latter)
Newsgroups: sci.electronics
Subject: Re: Modern printers (Was: Is lead solder bad for me?)
Summary: replace ozone filter
Date: 24 Nov 92 06:06:50 GMT
Organization: Comp Sci, RMIT, Melbourne, Australia

In article <1992Nov21.124420.12892@phx.mcd.mot.com>, schuch@phx.mcd.mot.com (John Schuch) writes:
 > 
 > I can not be within 15' of my NEC Silentwriter 2-90 Postscript laser
 > while it's printing. I've been told to proplem is ozone created by
 > the corona wire in the printer. There is a charcoal filter which is
 > supposed to absorb it but apparantly NEC has problem in this area.
 > 
 > >The feeling I get is like a metal-taste in my mouth and some 'pressure'
 > >in my lungs (spelling ??).
 > 
 > Plus, if I say around, burning eyes and a pounding headache.

What you should do is replace that carbon ozone filter.
Most printers should have the filter replaced every 20000-50000 sides.
Note most manuals state 20000 sides of printing.
Your feelings match the body reactionns to ozone. (at higher concentrations
it is very dangerous!!!)

              David

Newsgroups: sci.med
From: trwagner@bronze.ucs.indiana.edu (Ted Wagner)
Subject: Re: Nitrous Oxide
Organization: Indiana University
Date: Tue, 24 Nov 1992 00:37:07 GMT

In article <1992Nov23.233810.12497@athena.mit.edu> raek@athena.mit.edu (Robyn A E Kozierok) writes:
>Hi,
>
>I am now considering using Nitrous Oxide (with novacaine) instead of having
>a general anesthetic for the extraction of my wisdom teeth.
>
>I have had Nitrous Oxide when I was about 8, and seem to recall that I was
>pretty unaware of time passing while using it.  Does this seem right?
>(I also had a very convincing sensation of floating.)  (By unaware of time
>passing, I mean that I asked the dentist when he was starting as he finished
>up.)

	You are right about time passing.  But, I will never, NEVER
forget the pain I did feel during my root canals.  You do experience
the pain, but don't give a hoot and a hollar about doing anything
about it...you are carefree....But, I would never again have Nitrous
Oxide simply because I don't care for pain all too well.

-- 
         Swallowing your pride rarely leads to indigestion.
         A hard thing about business is minding your own!
-trwagner@bronze.ucs.indiana.edu   &    trwagner@kiwi.ucs.indiana.edu-
----------------------------------------------------------------------
From: Vida Tigrani <veeduh@leland.stanford.edu>
Newsgroups: sci.med
Subject: Reference book
Date: 21 Nov 1992 03:32:38 GMT
Organization: Stanford University
Distribution: world
NNTP-Posting-Host: barnes-kfps-dynamic.stanford.edu
X-UserAgent: Nuntius v1.0

I want to buy a book for my brother who is a zoology major and planning
to go to medical school.  Can you recommend a good
science/medical/biology reference book/dictionary?  Please respond
directly to veeduh@leland.stanford.edu.  Thanks!
Newsgroups: sci.med
From: max@queernet.org (Max J. Rochlin)
Subject: Re: Toothbrush sterilizers any good?
Date: Fri, 20 Nov 1992 03:06:48 GMT
Organization: QueerNet

In article <curtisg.722196457@sco> curtisg@sco.COM (Curtis Galloway) writes:
>I almost bought a toothbrush sterilizer the other day.  It has a UV bulb
>inside a case that holds your toothbrushes, and it claims to kill all kinds
>of bad germs that can, for example, re-infect you with a cold if you've had
>one recently.  Is this a waste of money, or are they on to something here?

It's a waste of money.  That's what Consumer's Report said recently.  You'd
be better off rinsing your toothbrush with H2O2 instead.  It's cheaper, too.


-- 
+-----------------------------------------+
|  max@queernet.org  |   Max J. Rochlin   |
+-----------------------------------------+
Newsgroups: sci.med
From: dyer@spdcc.com (Steve Dyer)
Subject: Re: Deprenyl
Organization: S.P. Dyer Computer Consulting, Cambridge MA
Date: Sat, 21 Nov 1992 20:25:29 GMT

In article <1992Nov20.060539.0430184@locus.com> yazz@locus.com (Bob Yazz) writes:
>| One issue with selegiline is that it is metabolized to l-methamphetamine
>| and l-amphetamine, both of which achieve significant levels, and these
>| both have effects on dopamine reuptake and release.
>In 10mg/week doses, these "illegal metabolites" are significant only to
>urine screeners and those affected by them.

I was talking about their therapeutic actions in Parkinsonism.

>By the way, what is the interaction between fluoxetine & deprenyl that
>Gordon mentioned?

I hadn't heard of any such interaction, though it wouldn't surprise me
either.  It may be the "serotonin syndrome" seen when other MAO inhibitors
are combined with fluoxetine or meperidine.  You get hyperpyrexia, con-
vulsions, and other nasty, life threatening symptoms.

-- 
Steve Dyer
dyer@ursa-major.spdcc.com aka {ima,harvard,rayssd,linus,m2c}!spdcc!dyer
Newsgroups: sci.med
Subject: Re: Electrical Timing Properties of Myocardic cells
From: km@cs.pitt.edu (Ken Mitchum)
Date: 20 Nov 92 23:49:41 GMT
Reply-To: km@cs.pitt.edu (Ken Mitchum)
Distribution: sci
Organization: Univ. of Pittsburgh Computer Science

In article <SSAMMY.92Nov18172236@simpson-05.cs.strath.ac.uk> ssammy@cs.strath.ac.uk (Paul Sammy 4th Year iE/CES) writes:
>
>I have skimmed vast numbers of Journals and books to get this
>data but all don't seem to even give relative figures.

You might try the American Heart Association. Their ACLS training
book includes a good discussion of the four phases and of their
differences across different types of myocardial cells, along with
drug effects, etc. on the different phases. I don't remember the
book as giving a lot of references, but I am sure the AHA could
point you in the right direction. Unfortunately, it is quite a
toll call from where you are.

If you don't have access to a copy of the ACLS manual, send me
email.

 -km
From: n9020351@henson.cc.wwu.edu (James Douglas Del-Vecchio)
Newsgroups: sci.med
Subject: Re: Steroids for Cancer Patients?
Date: 20 Nov 92 05:13:57 GMT
Article-I.D.: henson.1992Nov20.051357.23849
Organization: Western Washington University

max@queernet.org (Max J. Rochlin) writes:

>Well, steroids are immuno-supressive.  This means that the possibility
>of getting sick is greater.  Other side effects include weight gain,
>short temper, just to name a few.  It's also been suggested that steroids
>we a major contributing factor to the brain cancer and subsequent death
>of L. Alzado (sp?) the ex-football player.

It's unlikely that steroids were a factor.  Human growth harmone, on the 
other hand, may have some links to cancer.  Anti-inflamitory steroids 
may have some negative effects like those I've experienced firsthand.

At one time I was taking prednisone because of Bells Palsy.  It reduced
the facial paralysis but it had a host of nasty side effects.

Clouded thinking, intense moods, short temper, violent and/or bizzare
type thoughts and compulsions, all things that were completely unlike me.
Plus headaches, fatigue, confusion, and a general sick and nervous feeling.
What was weird was that it had such an effect on me but it crept
up on me gradualy enough that I didn't realize that it was happening.

I was in a grocery store and the thought occured to me "I bet if I
hit that guy (nearby shopper), I can walk right out of here and nobody
will try to stop me from leaving."  I left the store thinking what 
a strange thought that was, and I decided to stop the prednisone, though
I was supposed to continue for a few more weeks. After a few days without 
the drug it became especialy apparent how mind altering it had been from
how much better I felt.

I gained about 15 lbs (in my face apparently), but it must have been
all water because it all went away in a few weeks.

Jim Del Vecchio

It was worth it BTW, it was the second attack of Bells palsy I'd had,
and it only lasted 3 weeks instead of ~3 months like the first time.
From: fzjaffe@othello.ucdavis.edu (Rory Jaffe)
Newsgroups: sci.med
Subject: Re: Chicken Pox
Date: 17 Nov 92 06:01:25 GMT
Organization: University of California, Davis

In article <chrisp.721537042@ningaui> chrisp@cs.uwa.oz.au (chris pudney) writes:
>
>My girlfriend has just contracted chicken pox.  What can she do to speed her
>recovery and minimise scarring?
>
If started in the first 24 hours, acyclovir tends to decrease duration
and number of pox.  The effect in healthy children is slight --
averaging 20% fewer pox and 1 day less being ill.  Whether or not that
is significant depends upon your perspective (as a parent, I thought it
was worth it).  Our pediatrician does not recommend it for healthy
children, but does prescribe it for adolescents and adults (I guess
because they tend to get more severe symptoms and are more likely to
scar).  Other than that, don't take aspirin! (chicken pox + aspirin
supposedly increases the risk of Reye's syndrome).  Topical symptomatic
treatments are what's left for her--oatmeal baths, soothing lotions,
etc.

<<<<<Generic disclaimer here>>>>>
Discussion on the net is for information only.  It is impossible to be
someone's doctor by teletype.
From: turpin@cs.utexas.edu (Russell Turpin)
Newsgroups: sci.med
Subject: Re: Circumcision as a trivial issue
Date: 20 Nov 1992 16:00:59 -0600
Organization: CS Dept, University of Texas at Austin
NNTP-Posting-Host: peaches.cs.utexas.edu
Summary: Gary Davis blathers on.
Keywords: mut

-*----
In article <gdavis.722288970@griffin> gdavis@griffin.uvm.edu (Gary Davis) writes:
> Its always seemed odd to me that people apply a strange kind of
> social relativity in judging rituals and customs.  If WE are
> not doing it than it may be both mutilation and appalling,
> but if WE do it even if its feeding infants to volanoes,its 
> just OK!

What nonsense.  Even if there is no medical reason for
circumcision, it is at *worst* a kind of ritual marking no better
and no worse than similar marking rites practiced in hundreds of
cultures.  It is neither mutilation nor throwing babies into
volcanos.  The critics of circumcision are the only ones here who
have displayed the parochial view that we should be exempt from
this kind of behavior or who think we should condemn it in other
cultures.  I condemn *neither* the African tribesman who pushes a
bone through his child's septum *nor* an American who has his son 
circumcised.  These are fairly benign acts and there are many
more important things to worry about.

> The average cost of the millions of infant circs done each year is
> not an insignificant amount when one considers what else it might
> have purchased such as child immunizations and nutritional programs
> and pre-natal care for children.

The energy that goes into debating trivial issues like
circumcision would do wonders if bent to a more useful purpose!

There are hundreds of trivial things that people do -- from
buying expensive electronic gadgets to getting their pets
decorously groomed -- whose collective costs could be put to
other uses.  Unless Gary Davis is suggesting that we condemn or
outlaw all such frivolity, he is just blathering. 

> The ear piercing ritual which I would not wish my daughter 
> to do, is at least done with HER consent. ...

More blather.  All parents make a broad variety of choices for
their children, both important and trivial, often with lasting
consequences, long before their children are old enough to
consent. 

> ... The procedure is ugly ... and disgusting! ...

To Gary Davis.  But he should understand that many people do not 
share his aesthetics.  For some, it is a religious ritual to which 
family and friends are invited.

Russell
Newsgroups: sci.med
From: bsimon@elvis.stsci.edu (Bernie Simon)
Subject: Re: Summary of evidence for homeopathy
Organization: None. This saves me from writing a disclaimer.
	<17493@pitt.UUCP> <1992Nov17.214256.9509@netcom.com>
Date: Wed, 18 Nov 1992 12:39:01 GMT

In article <1992Nov17.214256.9509@netcom.com> sue@netcom.com (Sue Miller) writes:

   I agree completely.  This "allopaths control the pursestrings" and
   "tremendous amount of money" business are just excuses.  The real
   thing here is the fact that the field of homeopathic medicine doesn't 
   have the scientific background which would just naturally lead its 
   practitioners to DESIRE their therapies to be scientifically tested in 
   settings such as clinical trials.  

I'm sorry, but I must disagree with you. Homeopaths are very interested
in conducting clinical trials. But, willing researchers are few,
grants are hard to come by, and many journals are unwilling to publish
the results. In spite of these problems, research is being conducted.
The following is a partial list of studies currently under way.

Homeopathic Treatment for Osteoarthritis, Brian Berman M.D., Univ. of
Md. School of Medicine

Clinical Effects of Homeopathic Zeal in Osteoarthritis of the Knee,
Carlo Calabrese N.D., Bastyr College of Natural Medicine

Homeopathic Treatment of Premenstrual Syndrome, Edward Chapman M.D.,
Univ. of Penn.

A Double Blind Crossover Proving of Crocus Sativa (Saffron), John
Collins N.D., National College of Naturopathic Medicine

Treatment of Social Phobias with Homeopathy, Johnathan Davidson M.D.,
Duke University School of Medicine

Homeopathic Treatment of Diarrhea in Children, Deborah Gordon M.D. and
Michael Carlston M.D., Univ. of Cal. at San Fran. School of Medicine

Treatment of Accute Childhood Diarrhea with Homeopathic Medicine: A
Randomized Clinical Trial in Nicaragua, Jennifer Jacobs M.D. MPH,
Univ. of Wash. School of Public Health
--
Bernie Simon	(bsimon@stsci.edu)		O tempora! O mores!

Newsgroups: sci.med
From: slotosch@Informatik.TU-Muenchen.DE (Oscar Slotosch)
Subject: Computer for Students Learning Medicin
Originator: slotosch@sunbroy5.informatik.tu-muenchen.de
Organization: Technische Universitaet Muenchen, Germany
Date: Thu, 19 Nov 1992 15:20:09 GMT


Hallo,
Is there any Tutorial for Med-Students available which uses Images
to teach students topics like anatomy or physiology or ..
I think of a programm that shows me an image (or a draft) and asks
me some question.
We have an IBM PC with Windows but ohter Programms are welcome to.
Can anybody help us?

Thanks, Oscar
-------------------------------------------------------------------------
Oscar Slotosch                     slotosch@informatik.tu-muenchen.de
Technische Universitaet Muenchen   Tel.: ++49 89/2105-8172
Institut fuer Informatik           Fax: ++49 89/2105-8183
Arcisstr. 21
8000 Muenchen 2, 
GERMANY
Newsgroups: sci.med
From: nadel@attatash.aero.org (Miriam Nadel)
Subject: Re: Offensive BO
Organization: /usr/lib/news/organization
Date: Tue, 17 Nov 1992 15:30:03 GMT


Coincidentally, I read Wendy's posting just after reading Siegfried Kra's
_The Three-Legged Stallion_.  Which is a collection of rather interesting
medical stories.  One of them involves a fastidious woman who suddenly
developed the smell of dead fish.  It turned out that she had a metabolic
disorder which resulted in trimethylamine being excreted in her urine,
producing the odor.  She was treated with metronidazole hydrochloride to
break down the TMA and put on a low choline diet (no soybeans, peas, eggs,
fish, liver, kidney) which got rid of the odor.

Miriam Nadel
Newsgroups: sci.med
From: mdiffin@crc.ac.uk (Dr. M.C. Diffin)
Subject: Re: Low IgM - What does it mean
Organization: MRC Human Genome Resource Centre
Date: Tue, 24 Nov 1992 00:34:30 GMT


JM>What would be the effect of consistently low (1/2 min norm) levels of
JM>Immunoglobin-M? Are there any known negative effects? Any treatment if so?

IgM varies between 0.5 and 2.0 g/l in the healthy adult, so I assume you mean
about 0.25g/l.  Given the wide normal variation, I do not
think (in the absence of other data) that this constitutes a clinical
problem.  Primary IgM deficiencies are rare anyway, and not usually
associated with recurrent infections or other problems as IgG and IgA
usually compensate.  Remember that IgM is phylogenetically 
the oldest antibody, its most important functions being to
act as the B cell receptor, to 'lead' the primary ab response and to fix
complement.  IgG is a much better general purpose serum antibody.

However, hypogammaglobulinaemia occurs with chronic lymphocytic
leukaemia (CLL) and IgM is often the first class to be affected.  Here
the presentation often includes persistent or recurrent chest infections
Also, I believe evidence exists that in some infections T cells
suppress the production of IgM, but I don't know if this is confirmed
(or significant).
-- 
___________________________________________________________________________
Michael Diffin
JANET: mdiffin@uk.ac.mrc-crc    PHONE: +44 (0)345 333111 Pager No. 0406653
INTERNET: mdiffin@mrc-crc.ac.uk, mcd12@phx.cam.ac.uk
From: turpin@cs.utexas.edu (Russell Turpin)
Newsgroups: sci.med
Subject: Re: RFD Alternative Medicine - need definition
Date: 23 Nov 1992 09:50:01 -0600
Organization: CS Dept, University of Texas at Austin
NNTP-Posting-Host: peaches.cs.utexas.edu
Summary: How I wish!

-*----
In article <1992Nov21.203914.19362@spdcc.com> dyer@spdcc.com (Steve Dyer) writes:
> Chuck's problem is not that he's strident and extreme, it's that he has
> a single axe to grind, and uses selective snippets from the literature
> to prove its edge.  This is not science, ...

I tend to agree that it is not science; however, I have seen much
the same thing (though in a more sophisticated fashion) in
respected, refereed journals.  It is left up to critics to point
out the bias in the snippets. 

> ... As Gordon points out, for every study which "proves" his
> point (i.e., that people can't and should not lose weight
> with current techniques because it's futile) there are
> studies which contradict this, often in the same journals.
> That's because scientific "truth", such as it is, is often to 
> be found only by wrestling intelligently with the cacophony of
> contradiction found in current studies.

True, but how does one marshall a case from a "cacophony of
contradiction?"  It can be done, but it requires hard work,
especially to be put into writing.  (I am underimpressed with most
meta-analyses I have seen, some of which seem little more than
bogus statistical play that tries to make respectable fields such
as parapsychology where decades of experiment have failed to find
the phenomeon under question.)

>> (Of course, Steve Dyer and I have our strident days, also.)

> Yeah, so what?  That's not the point--neither of us says 
> dumb things.

For myself, I would be satisfied not to stick tightly to the
dumb things I do say.

Russell
Newsgroups: sci.med