HDTenEightyP/NetNews huggingface dataset:
From: hooft@fys.ruu.nl (Rob Hooft)
Subject: Re: P32 b-emmissions -> gammas?
Organization: Physics Department, University of Utrecht,  The Netherlands
Date: Fri, 24 Jul 1992 14:40:15 GMT

In <1992Jul24.055711.20112@ucsu.Colorado.EDU> knapp@ucsu.Colorado.EDU (David Knapp) writes:

>I find it hard to believe that there is a high enough cross section in 
>plexiglass to creat bremsstrahlung xrays. Brehmsstrahlung radiation
>is typically produced (terrestrially) by interactions with rather dense
>materials like lead or other metals. In the hospital xrays, it is (or
>was)  beta impacts with Aluminum that gave the xrays.

and:
>Gammas are generally a result of nuclear processes and not due to accelerating
>charges, save exotic phenomena like black holes.  I would be interested to
>hear a mechanism whereby betas impact plexiglas yielding gammas.

I understood that it is common to pack pieces of Uranium ore into plastic foil,
and then into a lead box; the plastic would catch alpha and beta rays, such 
that the lead would not convert them to X-rays. Gamma rays from the U sample 
are going through the plastic foil but are absorbed by the lead.


-- 
Rob Hooft, Bijvoet Center for Biomolecular Research, 
Chemistry department University of Utrecht, the Netherlands
hooft@hutruu54.bitnet hooft@chem.ruu.nl hooft@fys.ruu.nl hooft@cc.ruu.nl
From: cbt131b@vaxc.cc.monash.edu.au
Newsgroups: sci.chem
Subject: Re: PCModel
Date: 29 Jul 92 15:31:57 +1000
Organization: Computer Centre, Monash University, Australia


In article <1992Jul24.152645.89525@vaxc.cc.monash.edu.au>, che238n@vaxc.cc.monash.edu.au writes:
> I would like to hear opinions of PCModel by Serena Software
> 
> Department of Chemistry
> Monash University
> Australia
Newsgroups: sci.chem
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: Let's have a laugh
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Sun, 26 Jul 1992 10:36:07 GMT

ttt@cmi.no (Tore Tjomsland) writes:
: Is there anybody out there who knows how to
: make N2O ?

Sure - obtaining a purity good enough for breathing is another matter.

Heating ammonium nitrate is one way. Unfortunately, it also tends to
produce NO2 and possibly NO, neither of which you want to breath.

Bill
Newsgroups: sci.chem
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: silver oxidation
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Tue, 21 Jul 1992 18:46:00 GMT

posakony@unixg.ubc.ca (Jeffrey Posakony) writes:
: 
: answer it, I told him I'd put it to the net.  So here goes.  My friend wears 
: a chain with a Sterling silver pendant around his neck.  The pendant turns
: black over a short period of time (presumably a silver oxide coating).  This
: did not occur when he was living in Hong Kong, but only began after he came
: to Vancouver, British Columbia in Canada.  What might be the source of 
: the 'selective' oxidation?  It seems odd to me that the
: same thing did not occur in Hong Kong, since Hong Kong, according to him,
: has much more air pollution.  Vancouver lies next to the waters of the
: Pacific Ocean and is less humid than Hong Kong, if that helps any.  Might
: it even be something related to the change of food?   

The discoloration is not silver oxide. It is a silver sulfide or sulfate.
This is what causes the usual blackening of silver. I would expect that there
are far more paper pulp mills near Vancouver than there are near Hong Kong.
These release a large amount of sulfur compounds into the air.

It is doubtful if diet change would have any effect - at least, not that
way.

Bill
Newsgroups: sci.chem
From: moore@theory.chem.ubc.ca (Brian Moore)
Subject: Re: silver oxidation
Organization: University of British Columbia, Vancouver, B.C., Canada
Date: Sun, 26 Jul 1992 02:00:27 GMT

In article <1992Jul26.002934.14847@Princeton.EDU> lchai@phoenix.Princeton.EDU (Liang Chai) writes:
>In article <posakony.711583503@unixg.ubc.ca> posakony@unixg.ubc.ca (Jeffrey Posakony) writes:
>>... It seems odd to me that the
>>same thing did not occur in Hong Kong, since Hong Kong, according to him,
>>has much more air pollution.  Vancouver lies next to the waters of the
>>Pacific Ocean and is less humid than Hong Kong, if that helps any.  Might
>>it even be something related to the change of food?   
>
>It looks to me that it might be silver sulfid (Ag2S). I cannot figure
>out 
>where the sulfer comes from and this is only for your information. It may
>be wrong.
>

I don't know if this has anything to do with it, but Vancouver is
a *major* port for sulfur trade.  From the harbor you can see a
perpetual mountain of the stuff just sitting out exposed to the
elements and all.  I don't know if that could have any effect on
sulfur levels in the atmosphere, though.

--
Brian Moore  Chemistry Dept.,  UBC
moore@theory.chem.ubc.ca
Newsgroups: sci.chem
From: Dr. David A. Winkler <Dave@carbon.chem.csiro.au>
Subject: New medicinal chemistry mail exploder
Organization: CSIRO Chemicals and Polymers
X-Useragent: Nuntius v1.1b2
Date: Wed, 29 Jul 1992 02:48:29 GMT

_____________________________________________________________________
_____

ANCHODD: A NATIONAL COMPUTER NETWORK FOR THE EXCHANGE OF INFORMATION
BETWEEN DRUG SCIENTISTS.

This electronic clearinghouse has been established to provide a means for
rapid communication between scientists working in the drug sciences, with
a
view to sharing skills and resources and identifying potential research
collaborators.  ANCHODD (Australian National Clearinghouse on Drug
Development) functions in principle like an announcement at a scientific
meeting, except that the audience are the recipients of electronic mail
messages and their number and geographical dispersal is virtually
unlimited.

ANCHODD is an initiative of the CENTRE FOR PHARMACOLOGY, MEDICINAL
CHEMISTRY AND TOXICOLOGY AT THE UNIVERSITY OF TASMANIA.   The initial
focus
was on the complimentary fields of medicinal chemistry and pharmacology
testing where there is an obvious need for collaboration between those who
synthesize or isolate potential new drugs, and those who can characterise
a
drug's pharmacological properties.  However, applications of ANCHODD are
not limited to this situation, and ANCHODD can be used wherever drug
scientists need to establish rapid contact with others who are potential
suppliers of goods or services. Three Australian scientific societies have
supported ANCHODD: The Royal Australian Chemical Institute, RACI (Division
of Medicinal and Agricultural Chemistry); The Australasian Society of
Clinical and Experimental Pharmacologists and Toxicologists, ASCEPT; and
The Australasian Pharmaceutical Sciences Association, APSA. 


ANCHODD uses the Australian Academic and Research Network (AARNet) a new
high-speed computer network , which was established by Australian
Universities to facilitate just this sort of interaction amongst the
academic and research community.  Pharmaceutical companies can become
affiliate members of AARNet through links with a sponsoring University or
CSIRO Division.

ANCHODD is an electronic mail address at the University of Tasmania.  Any
message sent to ANCHODD is automatically broadcast to all addresses on its
mailing list.  To join ANCHODD , send your request for registration to the
email address:

                        listserv@cc.utas.edu.au

followed by the message "subscribe anchodd Fred Bloggs" (but substituting
your own name for Fred's).

Inquiries are welcome.

If you are interested in ANCHODD but do not have an electronic mail
address, then please contact Stuart McLean (fax 002-202870) for advice.
_____________________________________________________________________
______
Stuart McLean                           Telephone (002) 202 199
School of Pharmacy                       Facsimile (002) 202 870
University of Tasmania                   International callers: 
GPO Box 252C, Hobart 7001                 please use 61 02 in place of 002
Australia
From: a_rosati@guvax.georgetown.edu
Newsgroups: sci.chem
Subject: Re: moderator how is one appointed?
Date: 21 Jul 92 18:56:46 -0400
Distribution: world
Organization: Georgetown University

In article <cs_jh.491@cox.nsac.ns.ca>, cs_jh@cox.nsac.ns.ca (JEFF HOYLE) writes:
> I think that it is about time that this group had a moderator.  How does one 
> go about seeking a moderator for a group?  I have basically been flamed for 
> my earlier comment regarding inappropriate use of this newsgroup.  I still 
> stand by my comment that this is a group for chemistry discussion (broad 
> though it may be this subject definitely does not include the discussion 
> concerning getting degrees without going to (attending) college.
> 
> If anyone knows of the procedure for moderator selection please let me 
> know.  I will be very happy to set this process in motion.
> 
>   ***********************************************************
>   * Dr Jeff Hoyle (Organic Chemist)                         *
>   * Chemistry and Soil Science Department                   *
>   * Nova Scotia Agricultural College    FAX: (902)-895-4547 *                     *
>   * P.O. Box 550, TRURO,              Voice: (902)-893-6630 *
>   * Nova Scotia. CANADA  B2N  5E3                           *  
>   *                  -----------------                      * 
>   * Internet: cs_jh@cox.nsac.ns.ca  OR  jh_cs@ac.nsac.ns.ca *
>   ***********************************************************
Jeff...

If I recall the rules of newsgroup administration, the addition of a 
moderator would result in every message submitted being forwarded to 
the the moderator's email address. As such, there could be 
considerable delay in posting depending on who the moderator is.

Just my 2 cents...


*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*
| Anthony V. Rosati              |                                |
| Department of Chemistry,       | "A nation that cannot think,   |
| Georgetown University          |  cannot survive."              |
| Washington, D.C. 20057-2222    |                                |
| A_ROSATI@GUVAX.BITNET          |          - Norman Mailer, 1992 |
| A_ROSATI@GUVAX.GEORGETOWN.EDU  |            National Press Club |
# ======== # ======== # ======== # ======== # ======== # ======== #
| Southeastern Regional Coordinator & Member, Board of Directors  |
| National Association of Graduate-Professional Students (NAGPS)  |
| 1992 - 1993                                                     |
*-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*
From: eddie@csa2.lbl.gov (EDWARD J MOLER)
Newsgroups: sci.chem
Subject: Re: Teflon: question about heating.
Date: 23 Jul 92 22:32:11 GMT
Organization: Lawrence Berkeley Laboratory - Berkeley, CA, USA
Distribution: world
Reply-To: eddie@csa2.lbl.gov
NNTP-Posting-Host: 128.3.254.197
News-Software: VAX/VMS VNEWS 1.3-4   

In article <1992Jul22.221548.17086@yrloc.ipsa.reuter.COM>, loc@yrloc.ipsa.reuter.COM (Leigh Clayton) writes...
> 
> 
> This strikes me as a typical urban myth, but I'm cross-posting to the
>sci.materials group in the hope that someone there will know (or be willing to
>find out) exactly how thermally stable the stuff is.
> 
	I have teflon in my Ultra-High Vacuum chamber and have heated it to at
least 150 degrees C with no sign of outgassing (as read in a mass spectrometer
in the UHV chamber).  Even with "new" teflon.  I regularly achieve 1x 10**(-10)
torr like this and would be VERY sensitive to small outgassing rates.  I look
at masses as high as 50 amu's most of the time.  

							Eddie Moler
							EJMOLER@LBL.GOV
From: billn@hpcvaac.cv.hp.com (bill nelson)
Newsgroups: sci.chem
Subject: Re: Teflon: question about heating.
Date: 26 Jul 92 10:29:25 GMT
Article-I.D.: hpcvaac.1992Jul26.102925.18750
Distribution: usa
Organization: Hewlett-Packard Company, Corvallis, Oregon USA

Ligon@macgw1.ge.com (Woody Ligon) writes:
: 
: > > I posted this article to sci.materials, and got one response suggesting
: > >that the gas Teflon *may* emit when heated too much is Phosgene.
: 
: When heated above about 280 C in air (not vacuum), Teflon(R) decomposes to
: give (in part) fluorophosgene (carbonyl difluoride). Unlike dioxin, asbestos,
: PCBs and Alar, etc., etc., this really is a genuinely and very seriously toxic
:  material. The term "toxic" has been so completely devalued that I think this
: kind of comparisons are necessary to provide perspective.  

This is a little hard to believe, since a regular cooking oven can get that
hot without any problem. There are many products designed for oven use that
are Teflon coated.

I can believe the 600 C figure given by another poster, however.

Bill
From: cbt131b@vaxc.cc.monash.edu.au
Newsgroups: sci.chem
Subject: Re: PCModel
Date: 29 Jul 92 15:30:24 +1000
Organization: Computer Centre, Monash University, Australia

In article <1992Jul24.152645.89525@vaxc.cc.monash.edu.au>, che238n@vaxc.cc.monash.edu.au writes:
> I would like to hear opinions of PCModel by Serena Software
It is very much like, and seems quite good compared to Macromodel, and can use 
MMP1
type calculations for conjugated systems
See Philip Thompson (x3772)
> Department of Biochemistry
> Monash University
> Australia
Newsgroups: sci.chem
From: MALLON@rzmain.rz.uni-ulm.de (Mallon Rainer)
Subject: WANTED
Organization: University of Ulm, Germany
Date: Wed, 29 Jul 1992 16:09:01 GMT
X-News-Reader: VMS NEWS 1.23

----------
  WANTED
----------

  We are looking for a program called "CONTIN" by Provencer. It is said to
  do measures on relaxation processes and does contain some fourier -
  transform between time and frequency. Who can help ?

  Another question : who knows about Cirrus Logic, Japan ? Where else can this
  company be located ?

  Thanks for reading,
                  RaMa.


-----------------------------------------------------------------------
| Rainer "RaMa" Mallon           |       I am an instant swimmer ...  |
| University of Ulm, Germany     |       ... just add water !         |
| Department of Applied Physics  |                                    |
-----------------------------------------------------------------------
                   
Newsgroups: sci.chem
From: kellmer@milton.u.washington.edu (Brent Kellmer)
Subject: Proper names for some CFC's
Reply-To: kellmer@u.washington.edu
Organization: University of Washington, Seattle
Date: Wed, 29 Jul 1992 19:29:42 GMT

Perhaps someone out there can help me.  I'm trying to find the proper names
for several CFC's.  I've had unfortunately have had very little chemistry,
so I'm unfamiliar with the standard way of determining nomenclature.

I've used parentheses for the subscripts:

     CF(3)Br

     C(2)F(2)

     CF(3)Cl

     CF(2)Cl(2)

     SF(6)

Any help you could give me would be greatly appreciated.  Thanks.

Brent Kellmer
kellmer@u.washington.edu


Newsgroups: sci.chem
From: b_duke@darwin.ntu.edu.au (Brian Duke)
Newsgroups: sci.chem
Subject: Re: moderator how is one appointed?
Date: 23 Jul 92 09:19:52 +0900

In article <cs_jh.491@cox.nsac.ns.ca>, cs_jh@cox.nsac.ns.ca (JEFF HOYLE) writes:
> I think that it is about time that this group had a moderator.  How does one 
> go about seeking a moderator for a group?  I have basically been flamed for 
> my earlier comment regarding inappropriate use of this newsgroup.  I still 
> stand by my comment that this is a group for chemistry discussion (broad 
> though it may be this subject definitely does not include the discussion 
> concerning getting degrees without going to (attending) college.
> 
If I can put in my 2c worth from down under. No! No! No! Leave well alone.
-- 
                  Brian Salter-Duke (Brian Duke)
School of Chemistry and Earth Sciences, Northern Territory University
        GPO Box 40146, Casuarina, NT 0811, Australia.
Phone 089-466702   FAX 089-410460    E-mail B_DUKE@DARWIN.NTU.EDU.AU
Xref: sparky sci.chem:2845 sci.engr.chem:390
From: horn@schaefer.math.wisc.edu (Jeffrey Horn)
Newsgroups: sci.chem,sci.engr.chem
Subject: Gas Chromatography Data Acquisition and/or Analysis Software
Date: 30 Jul 92 18:50:10 GMT
Article-I.D.: schaefer.1992Jul30.185010.6382
Organization: Univ. of Wisconsin Dept. of Mathematics

I am looking for commercial or free software that will enable a Sun 
computer running SunOS 4.1.1 to collect and analyze data from gas
chromatographs.  

The only thing I can currently find is HP-Chemstation software which only
runs on PCs and HP Workstations.  Any help would be appreciated.

Thanks, 

Jeffrey Horn
From: pk03+@andrew.cmu.edu (Paul Karol)
Newsgroups: sci.chem
Subject: Re: More on moderator
Date: 23 Jul 92 05:26:40 GMT
Article-I.D.: andrew.UePfCEa00iUx01bVtC
Organization: Carnegie Mellon, Pittsburgh, PA

Jeff Hoyle explains that the motivation for requesting this netnews
bboard be moderated is the prevalence of irrelevance which discourages
new users.  I guess I challenge that and suggest that a proper 'control'
experiment hasn't been run.  My feeling is that anyone scared off by
volumes of fluff would not have been attracted to the system even if
such fluff never appeared.

Paul J. Karol
Selective Reader
Newsgroups: sci.chem
From: ttt@cmi.no (Tore Tjomsland)
Subject: Let's have a laugh
Keywords: N2O
Organization: University of Bergen, Norway
Date: Fri, 24 Jul 92 07:01:54 GMT

Is there anybody out there who knows how to
make N2O ?

Tore Tjomsland
e-mail: ttt@cmi.no

Newsgroups: sci.chem
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: will this cause a fire?
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Sun, 26 Jul 1992 10:39:29 GMT

giber@pollux.cs.uga.edu (Carolyn Giberson) writes:
: 
: This may delve into the area of forensic chemistry, but here goes.  
: A police department in north Georgia is investigating a suspicious
: fire.  They suspect that the fire (trying to burn a mobile home)
: may have been started by mixing powdered calcium hypochlorite and
: a wood preservative (described only as "volatile", so I assume it
: is based on a flammable solvent -- hydrocarbon? acetone?).  My
: questions are:
: 
: 1.  Would these substances be expected to react spontaneously to
:     cause a fire, an explosion, both, or neither?

Well, HTH and brake fluid will work. I assume there are other
fuels that will work also. Calcium hypochlorite is a very strong
oxidizer.

: 2.  Would another agent (even as simple as water?) be needed to
:     cause this to happen?

No.

: 3.  Under what conditions would this be likely to occur (i.e., in
:     a sealed container, simple mixing, etc.)?

You just pour in the liquid.

: 4.  What time interval might be involved between mixing the chemicals
:     and the eventual reaction (i.e., time to set up an alibi?)?

For brake fluid, it is only about 30 seconds or so. Other fuels might
take longer.

: Any information/suggestions/opionions on this would be greatly
: appreciated.  Please post your response to this news group or
: email me directly -- giber@pollux.cs.uga.edu.

Bill
From: dfield@zeus.calpoly.edu (Daniel R. Field)
Newsgroups: sci.chem
Subject: Re: No moderator, please...
Date: 23 Jul 92 01:57:05 GMT
Organization: California Polytechnic State University, San Luis Obispo

In article <1992Jul21.223621.16798@constellation.ecn.uoknor.edu> stdtm@uokmax.ecn.uoknor.edu (Timothy A. Melton) writes:

>In article <EeP5Sy600WBMQ1v3oN@andrew.cmu.edu> Paul Karol <pk03+@andrew.cmu.edu> writes:
>>
>>
>>   I cast my vote AGAINST moderation.  (No pun intended.)
>>
>>Paul J. Karol
>  I second the motion AGAINST moderation.  Just learn to use a kill file.
>
>>Nuclear Chemist
>>
>-- 
>Timothy A Melton                             University of Oklahoma
>Gradual Student                       Department of Chemical Engineering
>stdtm@uokmax.ecn.uoknor.edu     or    stdtm@uokmax.ecn.uoknor.edu!tims386.uucp

I recently discovered that many friends in the USENET are not using a
threaded news reader, and didn't know about them.  I can understand how
agravating indeed sifting through a bunch of inappropriate articles would
be to someone reading news with, for example, the rn newsreading program.
Using trn instead and listing the subject directory (with the plus       
key..."+") will make the lives of these people considerably more pleasant.

Please, no censor--er, moderator, I mean.

                                    -Dan Field
                                     dfield@nike.calpoly.edu
From: bmhn_cif@uhura.cc.rochester.edu (LUMO)
Newsgroups: sci.chem
Subject: File conversion...
Date: 22 Jul 92 13:26:49 GMT
Organization: University of Rochester - Rochester, New York


	I am using macromodel and I need to convert somthing.. Does anyone
know where I can get a cnverter for .con files to macromodel files????
I COULD write a matrix tranforation program but I really do not fee; ;ike it.. 
Thanks
Brian Meehan
Newsgroups: sci.chem
From: Bj|rn Alsberg <alsberg@math.uio.no>
Subject: Problems with NICOLET spectrometer
Organization: University of Oslo
Date: Wed, 22 Jul 1992 15:39:43 GMT




I'm posting this for a friend who has not access to the net:



We desperately need help with the computer connected to 
a Nicloet 800 spectrometer. The computer is a 680 DSP workstation.

The problem is to transfer the spectra files from the Nicolet
computer to a other computers via Kermit. Preferably we wish
to transfer it to an IBM PC machine.

On the 680 DSP workstation we cannot find the kermit progam; is this
software always included when you buy the machine?

Is the program FILTRN the same as kermit? Or is the FILTRN program
only designed to transmit between different Nicolet computers, not
between Nicolet and different computers?



Thanks in advance for any help!!


Egil Nodland
Dept. of Chemistry
University of Bergen
5007 Bergen





Newsgroups: sci.chem
From: lchai@phoenix.Princeton.EDU (Liang Chai)
Subject: Re: silver oxidation
Originator: news@ernie.Princeton.EDU
Organization: Princeton University
Date: Sun, 26 Jul 1992 00:26:02 GMT

In article <posakony.711583503@unixg.ubc.ca> posakony@unixg.ubc.ca (Jeffrey Posakony) writes:
>
>A friend of mine recently posed this question to me.  Since I was unable to 
>answer it, I told him I'd put it to the net.  So here goes.  My friend wears 
>a chain with a Sterling silver pendant around his neck.  The pendant turns
>black over a short period of time (presumably a silver oxide coating).  This
>did not occur when he was living in Hong Kong, but only began after he came
>to Vancouver, British Columbia in Canada.  What might be the source of 
>the 'selective' oxidation?  It seems odd to me that the
>same thing did not occur in Hong Kong, since Hong Kong, according to him,
>has much more air pollution.  Vancouver lies next to the waters of the
>Pacific Ocean and is less humid than Hong Kong, if that helps any.  Might
>it even be something related to the change of food?   
>
>I would appreciate any ideas that anyone might have.  Please send all 
>responses directly to:   posakony@unixg.ubc.ca  


It looks to me that it might be silver sulfid (Ag2S). I can not remeber
where the sulfer comes from and this only for your information. It may
be wrong.

Liang Chai
lchai@phoenix.princeton.edu