HDTenEightyP/NetNews huggingface dataset:
From: zukicn@wl.aecl.ca
Subject: COMPUTER MODELLER - R&D
Organization: AECL RESEARCH
Date: Thu, 27 Aug 1992 15:04:41 GMT

I am posting this for my manager & branch. Do NOT send your resumes, 
inquiries, etc. to me, as it all has to go through the Human
Resources and the person listed below. Our phone is: (204) 753-2311. 

Thank you,

Nermin Zukic

----------------------------------------------------------------------------

               RESEARCH AND DEVELOPMENT OPPORTUNITIES

                               for A

                         SCIENTIFIC COMPUTER
                          MODELLER/ANALYST

             To Work in a Multi-Disciplinary Environment

                   Salary:  CDN $35,000 to 57,500
             depending on qualifications and experience


        A Computer Modeller/Analyst is required to develop and
        utilize computer codes to analyze the thermal and
        mechanical response of CANDU fuel channels under transient
        conditions.  Immediate work involves the development of
        theoretical models or computer codes to facilitate the
        understanding of the physical phenomena embedded in the
        various experiments, and the comparison of the actual
        experimental results with the predictions.

        An advanced degree in Mechanical, Chemical or Nuclear
        Engineering, Applied Mathematics, or Physics is preferred,
        although a bachelors degree with high academic standing and
        relevant experience in research will also be considered.  

        A strong background in heat transfer and scientific
        programming is essential.  Additional background in fluid
        flow dynamics, solid mechanics or materials science is
        desirable.  Demonstrated technical report writing and oral
        communications skills would be useful assets.

        The Whiteshell Laboratories is located at Pinawa, an
  attractive recreational/residential community on the banks of the
  Winnipeg River, northeast of Winnipeg.  We are a 1000 employee
  laboratory with research interests in both nuclear and non-
  nuclear activities.  The laboratory has a strong, comprehensive
  complement of in-house support services/facilities and research
  is well supported with advanced experimental equipment and
  computers.


  INTERESTED?    Contact A. Portman
                 AECL Research
                 Whiteshell Laboratories
                 Pinawa, Manitoba
                 R0E 1L0
                 (File No. WSR2017)
Newsgroups: sci.chem,sci.engr,sci.engr.chem,sci.environment,sci.physics
From: tinov@woods.ulowell.edu
Subject: ppbv -> mg/m**3
Organization: University of Lowell
Date: Wed, 2 Sep 1992 20:02:48 GMT

I am trying to convert from parts per billion by volume (ppbv)
of Sulfur Dioxide (SO_2) to milligrams per cubic meter assuming
dry air and normal surface temperature and pressure, say 20 deg C
and 1013.25 mb.

Thanks in advance.

Vincent Tino
Department of Meteorology
Florida State University
Tallahassee, FL 32306-3034
PH: (904) 644-6205
e-mail: tino@ray.met.fsu.edu
FAX: (904) 644-9642
From: dfield@zeus.calpoly.edu (Daniel R. Field)
Newsgroups: sci.chem
Subject: Re: Organic Models Kit:  How helpful?
Date: 29 Aug 92 22:06:10 GMT
Article-I.D.: zeus.1992Aug29.220610.169722
Organization: California Polytechnic State University, San Luis Obispo

In article <1992Aug29.192335.5440@col.hp.com> chrism@col.hp.com (Chris Magnuson) writes:
>  How helpful are the plastic beads model kits for learning organic chemistry?
>Would computer modeling programs be better?  If so, can someone recommend one
>for the Mac?
>
>Thanks in advance,
>chrism@col.hp.com

     I'm currently finishing my first quarter of undergraduate organic
chemistry.  I purchased a modelling kit called Flexible Stereochemistry
from Darling Models, and found the perspective I get from models, and
being able to manipulate them, to be very valuable.  I'm very happy that
I bought models.
-- 

                                -Daniel R. Field
                                 dfield@nike.calpoly.edu
Newsgroups: sci.chem
From: knapp@spot.Colorado.EDU (David Knapp)
Subject: Re: Luminescent Paint (Q)
Organization: University of Colorado, Boulder
Date: Thu, 27 Aug 1992 04:00:05 GMT

In article <1992Aug26.170600.28930@bas-a.bcc.ac.uk> ucca245@ucl.ac.uk (Andrea Sella) writes:
>A student from a local art college has asked me for advice on how to 
>"make" luminescent paint. By luminscent he means glow in the dark.
>he claims not to be able to find any commercially.

I bought some at one of those science stores in a mall. It is definitely
available. I think I've also seen it in Edmund Scientific for only a billion
dollars  ;-)


>Any ideas about what one might add to a water-based emulsion to get
>such a material. 

ZnS comes to mind.

>Ideas involving radium will not be favourably received (:))

Yeah, don't use it.

>Send replies direct to me, if you want, and I will summarize to the
>net.

Oops, too late. (sorry everyone.)

>
>Andrea Sella
>UCL Chemistry
>aka ucca245@ucl.ac.uk


-- 
David Knapp                                      University of Colorado, Boulder
Highly Opinionated, Aging  and                      knapp@spot.colorado.edu
Perpetual Student of Chemistry and Physics.
            Write me for an argument on your favorite subject.
From: giber@pollux.cs.uga.edu (Carolyn Giberson)
Newsgroups: sci.chem
Subject: chemical safety
Date: 28 Aug 92 20:07:14 GMT
Organization: University of Georgia, Athens
Originator: giber@pollux


With respect to the current discussion on chemical safety, how does this
impact educational institutions?  I teach undergraduate chemistry courses
with labs -- very "safe" labs, but accidents can and do happen.  If one
of my students were to disregard my safety instructions and get seriously
hurt, would I be liable or would the college be liable?  Or both?

Carolyn Giberson
giber@pollux.cs.uga.edu
University of Georgia  (<-- not where I teach chemistry!)
Newsgroups: sci.chem
From: PHA146@UKCC.UKY.EDU
Subject: Re: tructure of nonoxynol-9 wanted
Organization: University of Kentucky
Date: Fri, 28 Aug 1992 15:21:52 GMT

     The non-ionic surfactant nonoxynol is a group of polyethoxylated
 nonylphenyl ethers.  Nonoxynol-9 has an avg of nine oxyethylene units.
 i.e.:
       C9H19-C6H4-(OCH2CH2)9OH
 
 This information is from the Merck Index, a good first source of info
 on many organic compounds.
 
Newsgroups: sci.chem
From: cfthb@ux1.cts.eiu.edu (Howard Black)
Subject: Re: Azide Chemistry
Date: Thu, 27 Aug 1992 19:36:16 GMT
Organization: Eastern Illinois University

In article <awcnv#+.ladasky@netcom.com> ladasky@netcom.com (John J. Ladasky II) writes:
>	O.K., I've got an o-chem question.
>
>	A primary amine (alpha to a benzene ring, if that matters) is
>converted to an azide by suspension of the reactant in concentrated HCl 
>and sodium azide at 5C, followed by dropwise addition of sodium nitrite.
>Does anyone know of a general refernce to this reaction?  In particular, 

    It is an example of a diazonium displacement reaction.  Look in your
book(s) under diazonium chemistry and you should find it.  If not, there
will be many examples of the general reaction with other nucleophiles than
azide.

>I'm interested to know what side reactions might occur - will the azide 
>attack alkylated tertiary amines?

    "Alkylated tertiary" sounds redundant to me, but tertiary amines are
generally inert to nitrous acid (the product of NaNO2 and HCl).

-- 
   ******************************************************************
     Howard Black                             cfthb@ux1.cts.eiu.edu
     Department of Chemistry                  Eastern Illinois Univ.
From: whitbeck@equinox.unr.edu (Michael Whitbeck)
Newsgroups: sci.chem
Subject: Re: Alcohol derivitization (adding 3,5-Dinitrobenzoate)
Date: 1 Sep 92 15:17:08 GMT
Distribution: na
Organization: University of Nevada, Reno

In article <7923@lee.SEAS.UCLA.EDU> grayson@hougen.seas.ucla.edu (David A. Grayson) writes:
>
>I am trying to derivatize the hydroxyl group of 1-tetralol (not a true
>glycol, but the technique I have adopted is commonly used for glycols).
>
>1-tetralol is 1,2,3,4 -tetrahydronaphthol. I use methylene chloride
>as my delivery solvent. (3.27 mg in 2 mL CH2Cl2) 
>
>The reaction takes place in pyridine.
>
>I use 30 ml pyridine with 0.5 g of 3,5-Dinitrobenzoyl chloride (DNB-Cl) and
... stuff deleted...

>
>Here is my problem. I can't get this heated solution to pH 2.5. I get down to
>about 4.8 and then nothing. Does anyone see a likely suspect as my acid
>sink? I wouldn't worry about it, but I am adding so much HCl, that I seem
>to be forming some sort of floating ppt.. 
>

the sink is the pyridine! The ppt is quite likely
Py*HCl salt.


...stuff deleted...
>
>thanks for any and all help
>
>dave
>
>--
>UCLA, Dept. Chem. Eng., 5805 Boelter Hall, LA, CA 90024
>David A. Grayson                  grayson@seas.ucla.edu


To confirm the ID of the ppt why not do an IR scan?


___________________________________________________________
|Mike Whitbeck             | whitbeck@equinox.unr.edu     |
|Desert Research Inst.     | whitbeck@wrc.unr.edu         |
|POB 60220                 |                              |
|RENO, NV 89506            | 702-673-7348                 |
|__________________________|______________________________|

All academics have the potential for being insatiable...
but the chemists are the most expensive and insatiable among the
expensive and insatiable. - J. Martin in "To Rise Above Principle"

Newsgroups: sci.chem
From: aankrom@nyx.cs.du.edu (Anthony Ankrom)
Subject: unsymetrical N substituted 2-oxo-benzimidazoles
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Date: Thu, 3 Sep 92 03:35:50 GMT


 I need some references for 2-oxo-benzimidazoles that are substituted on
one nitrogen only: 

        /C\  H
       C   C-N\
       | O |   C=O
       C   C-N/
        \C/  R

 Where R is a large alkyl group or a cyclic amine (e.g. pyrrolidine,
piperidine, etc...)

 Post or e-mail...

St. Anthony

           
--
 If mail barfs, send it to the ip #: aankrom@130.253.192.68   

                       dAdaMatriX
      I've lost my memories to all my fears...
From: garyh@sdsc.edu (Gary Hanyzewski)
Newsgroups: sci.chem
Subject: Chromatography peak Id'ing
Date: 26 Aug 1992 20:33:03 GMT
Organization: San Diego Supercomputer Center @ UCSD
Distribution: world
Reply-To: garyh@sdsc.edu
NNTP-Posting-Host: bashful.sdsc.edu


	Fellow Chemists and distinguished others ;

	I'm searching for references to the techniques used
	in the automatic ( computerized ) detection of peaks.
	I can find plenty of work on 2-d signal processing, but
	no information dealing specifically with the problems
	associated with chromatographic signals ( baseline drift,
	shoulder peaks, etc. ).   Any help would be appreciated.

	Gary
	

---
////////////////////////////////////////////////////////////////////////
         Gary Hanyzewski                | "... There are more things in
         garyh@sdsc.edu      		|      heaven and earth than
                                        |      are dreamt of in your 
     >>All opinions are my own<<        |      philosophy ...."  
////////////////////////////////////////////////////////////////////////

Newsgroups: sci.chem,sci.misc,misc.misc,sci.engr,sci.engr.chem
From: ghica@fig.citib.com (Renato [Titanium Cranium] Ghica)
Subject: gold test
Originator: ghica@duck
Organization: Citibank IBISM
Date: Thu, 27 Aug 1992 16:10:03 GMT




Is anyone aware of a simple test one can perform on a yellowish
metallic powder so to ascertain its gold content, if any?

Specifically, wether it's fool's gold or real gold?

e-mail, please.
-- 
--------------------------------------------------------------------------
"These views are my own. / Mail me or Flame me"

>@)
Newsgroups: sci.chem
From: Grady W Chism <gchism@magnus.acs.ohio-state.edu>
Subject: Re: Pop Corn Physics and Chemistry
Organization: The Ohio State University
Date: Thu, 3 Sep 1992 21:05:36 GMT

The "meat" of the popcorn is primarily starch and the native starch, before 
popping, is tightly bound together by hydrogen bonds and will not take up any
of the dye.
-- 
Grady W. Chism                     Email:gchism@magnus.acs.ohio-state.edu
Dept. of Food Science and Tech.    Voice:614-292-7719
Ohio State University              FAX:614-292-0218
2121 Fyffe Road, Columbus, OH 43210
Newsgroups: sci.chem,rec.scuba
From: mayne@pipe.cs.fsu.edu (William Mayne)
Subject: Question on partial pressure of O_2 and combustion
Reply-To: mayne@cs.fsu.edu
Organization: Florida State University Computer Science Department
Date: Wed, 26 Aug 92 20:45:53 GMT

[Cross posted to rec.scuba.]

Perhaps some chemists out there can help us software types (and
others) in rec.scuba understand a problem regarding making
oxygen enriched air mixtures for scuba diving. The problem centers
around the role of partial pressure and fraction of oxygen in a gas
leading to spontaneous combustion of hydrocarbons. To what extent
does combustion depend only on partial pressure? Is roughly 60%
nitrogen enough to inhibit combustion which would have resulted
from pure oxygen at 0.4 times the total pressure coming into contact
with hydrocarbons? Someone has given the example of hydrogen-oxygen
mixtures with a low fraction of O_2 which do not burn even under
high enough pressure that the partial pressure of O_2 is 1 atmosphere
to argue that the fraction of O_2 is critical. I believe we are talking
less than 4% O_2 and hence pressures above 25 atmospheres, equivalent
to depths over 800 feet, not that many of us recreational divers use
hydrogen-oxygen or go anywhere near that deep.

Here is a specific application: A tank (constant volume) is filled to a
given pressure X with pure oxygen. Obviously at this point the partial
pressure of O_2 is X. Air is then added, reducing the fraction of oxygen
to 40% or less, but obviously raising the partial pressure well above X.
I estimate it is close to 1.6*X partial pressure of O_2 and 4*X total
pressure for a 40% mix. Certainly the partial pressure of O_2 must go
up as air is added. It is amazing that not everyone realizes that.
Some who know better once their error is pointed out just think they are
diluting the oxygen by adding air. Realistically the initial pressure of
pure oxygen will be in the range of about 600 to 800 psi. Standards are
that for mixtures above 40% oxygen-safe equipment should be used regardless
of how the mix is made.

If the final mixture is safe as far as spontaneous combustion from
hydrocarbon residues go is it safe at the point that you have pure
O_2 at a lower partial pressure, i.e. does the nitrogen somehow
inhibit combustion? Or is there some other mechanism at work here?

I'd appreciate an explanation of the chemistry understandable to
non-chemist diver.

Bill Mayne
Newsgroups: sci.chem
From: s9874194@phobos.ucc.umass.edu (s9874194)
Subject: Re: the TRUTH about Methylene Chloride
News-Software: VAX/VMS VNEWS 1.41    
Organization: University of Massachusetts, Amherst
Date: Thu, 27 Aug 1992 12:34:00 GMT

In article <1992Aug27.061756.6719@magnus.acs.ohio-state.edu>, ANDERSONC@kcgl1.eng.ohio-state.edu (Chris Anderson) writes...
>Allison Chaiken asks a good question:  what other toxic chemicals do
>cosmetics contain?
> 
>In OHIO on November 3rd, voters will be able to cast votes for the
>right to know when they're being exposed to chemicals that are known
>to cause cancer or birth/reproductive defects.  The proposal is issue
>5 on the ballot and was placed there by OHIO TOXIC ACTION which is
>a project of the consumer group OHIO CITIZEN ACTION.
> 
>The law deals with 458 known carcinogenic/mutagenic chemicals and only
>requires warnings on products that pose a significant risk.  A very
>similar law was enacted in CALIFORNIA in 1986 as PROPOSITION 65.
> 
>--
>Chris Anderson
>Laser Spectroscopy Facility, The Ohio State University
>*
>Intellectuals solve problems, geniuses prevent them. -- Einstein
Do you know what NMR is? Nuclear Magnetic Resonance. Then, what is MRI?
Magnetic Resonance Imagine. Are they different? In princinple, they are
not. Then why they differ in names? If you are a doctor in a hospital
and you tell your patient to do a NUCLEAR ...., s/he would suspect that
you are going to *Nuke* her/him. Public fear about chemistry or I should
say science, has gone too far. I suspect that religion is playing a role
here.
Newsgroups: sci.chem
From: vsummers@polaris.cv.nrao.edu (Vince Summers)
Subject: Re: chemical safety
Organization: National Radio Astronomy Observatory
Date: Tue, 1 Sep 1992 21:43:10 GMT

q
q
This will no doubt appear in the wrong place, but here ggoes...why not
contact national safety council?  No doubt they would help.

Vincee Summers
that's Vince, not Vincee
vsummers@polaris.cv.nrao.edu
In article <1992Aug28.200714.11421@athena.cs.uga.edu> giber@pollux.cs.uga.edu (Carolyn Giberson) writes:
Path: cv3.cv.nrao.edu!uvaarpa!darwin.sura.net!europa.asd.contel.com!emory!athena.cs.uga.edu!pollux!giber
   From: giber@pollux.cs.uga.edu (Carolyn Giberson)
   Newsgroups: sci.chem
   Date: 28 Aug 92 20:07:14 GMT
   Sender: news@athena.cs.uga.edu
   Organization: University of Georgia, Athens
   Lines: 10
   Originator: giber@pollux


   With respect to the current discussion on chemical safety, how does this
   impact educational institutions?  I teach undergraduate chemistry courses
   with labs -- very "safe" labs, but accidents can and do happen.  If one
   of my students were to disregard my safety instructions and get seriously
   hurt, would I be liable or would the college be liable?  Or both?

   Carolyn Giberson
   giber@pollux.cs.uga.edu
   University of Georgia  (<-- not where I teach chemistry!)
From: dadmun@maple.circa.ufl.edu
Newsgroups: sci.chem
Subject: Re: the TRUTH about Methylene Chloride
Date: 31 Aug 92 13:14:10 GMT
Reply-To: dadmun@maple.circa.ufl.edu
Organization: University of Florida - CIRCA

In article <27AUG199208245065@phobos.ucc.umass.edu>, s9874194@phobos.ucc.umass.edu (s9874194) writes:
>In article <BtMJ3q.L82@wsrcc.com>, alison@wsrcc.com (Alison Chaiken) writes...
>> 
>>If you don't believe this story, try looking at the labels on some
>>containers of hairspray in the supermarket.  Nowadays most of them
>>say, "Does not contain methylene chloride."
>> 

That is because of the ozone layer.  Chlorinated hydrocarbons aren't good for
it. 
 
>>Alison Chaiken 				alison@wsrcc.com
>>(510) 422-7129 [daytime] 		or chaiken@cmsgee.llnl.gov
>>(510) 422-7300 [FAX]
>>Live fast, die young, leave a long publication list.

>I am a damned Chemist. I never wear mask or long gloves when I deal with
>methylene chloride. I never take the lables on the bottle seriously. The
>Daniel                                  ^
>S9874194@uccvax.ucc.umass.edu           :
                                         :
Well then you are a fool.            --- :

Not that MeCl is super dangerous, but not taking labels seriously is like
hugging a 500MHz NMR magnet when u have a pacemaker.  ;^)

Andy D.
From: pbays@bach.helios.nd.edu (phil bays)
Newsgroups: sci.chem
Subject: Re: Organic Models Kit:  How helpful?
Date: 1 Sep 92 13:37:34 GMT
Organization: University of Notre Dame, Notre Dame

Sorry about the last message which only gave my address.

The txt simply said, in response to a question about Mac
programs for molecular modelling, that I published a review
of five such programs in the March issue of Journal of
Chemical Education (1992).   I think some of the questions
that have been raised here are answered therein.
Newsgroups: sci.chem
From: s9874194@deimos.ucc.umass.edu (s9874194)
Subject: Re: Merck Index
Summary: looking for one
News-Software: VAX/VMS VNEWS 1.41    
Organization: University of Massachusetts, Amherst
Date: Wed, 26 Aug 1992 12:47:00 GMT

In article <h-bnk_d@lynx.unm.edu>, pkrause@triton.unm.edu (Paul Krause CIRT) writes...
> 
>I would like to know of an address which i could send an inquiry to as to buyinga Merck Index.  I was hoping that one of you could e-mail me, or post the
>publisher's address.  A science teacher at my son's school would like one, as 
>the school doesn't have one currently.  I do have one, but I am not totally
>sure that the address in it for the general direction for the publisher is 
>correct anymore (it is a 7th edition).
>Thanks.
>Paul
>pkrause@triton.unm.edu
Check the latest Chemical and Engineering News to see whether Merck has an
Ed there. If not, check the 800 directory (800-555-1212) for Merck 800
number.
Newsgroups: sci.chem
From: bl275@cleveland.Freenet.Edu (Dan Diaz)
Subject: Seek advice on capillary electrophoresis of oligonucleotides
Reply-To: bl275@cleveland.Freenet.Edu (Dan Diaz)
Organization: Case Western Reserve University, Cleveland, OH (USA)
Date: Wed, 26 Aug 92 23:18:37 GMT


I would like to resolve a series of small oligonucleotides are part of the
characterization of a nuclease.  The enzyme hydrolyzes single-stranded DNA
into small oligomers, the precise size of which I would like to determine.

Starting with poly(thymidine) I expect to see products in the range of
monomers to perhaps (pT)20.  The separation may prove difficult due to the
nature of the material.  

I would appreciate any feedback on conditions (gel or open capillary, bfr
system, etc).
-- 
Dizzy Dan   Department of Biochemistry and Mixed Drinks
Get off my Case Western Reserve University School of Medicine
ddiaz@cwru.bitnet   bl275@cleveland.freenet.edu
"If God had meant for us to get up early, sunrise would be noisy"
Newsgroups: sci.chem
From: nowsa%Solomon.Technet.sg (shan wong)
Subject: Resin Flexibility
Organization: National University of Singapore
X-Newsreader: Tin 1.1 PL5
Date: Fri, 28 Aug 1992 01:31:42 GMT
From: dsmith@uoft02.utoledo.edu
Newsgroups: sci.chem
Subject: MOPAC bug and sources of source code
Date: 30 Aug 92 16:49:37 EST
Organization: University of Toledo, Computer Services

For all of you who use MOPAC:

Please be very careful if you get source code from any place other than
QCPE.  There are several sites which claim to be "original" or some
other hyped type of anonymous ftp site, but in reality _NONE_ of these
has ever gotten "official permission" (if there is such a thing) to 
distribute the one and only, official version of MOPAC.  So, buyer (or 
hacker) beware - you might get garbage.

MOPAC is best obtained from the Quantum Chemistry Program Exchange or 
from the USAF Seiler Research Labs.

Take this advice for what it is worth - from someone who has worked with the
AF to add code to MOPAC, who has ported many an application (including 
MOPAC) for various hardware vendors, AF labs, and QCPE, and who was involved
in sorting out an earlier incident with multiple and error-stricken versions 
of MOPAC for QCPE and Jimmie Stewart.

Doug Smith
Assistant Professor of Chemistry
The University of Toledo
Toledo, OH  43606-3390

voice    419-537-2116
fax      419-537-4033
email    dsmith@uoft02.utoledo.edu
Newsgroups: sci.chem,sci.physics
From: bbesler@ouchem.chem.oakland.edu (Brent H. Besler)
Subject: Re: INDO/Zerner's INDO calculations
Keywords: INDO, Zerner, molybdenum, QCPE, GEOMOS.
Organization: Oakland University, Rochester MI.
Date: Fri, 28 Aug 1992 20:51:04 GMT

Dr. Zerner's INDO code is distributed out of the Quantum Theory Project
at the Univeristy of Florida at Gainsville.  I would contact either Dr.
Zerner(zerner@qtp.ufl.edu) or Dr. Rajiv Bendale(bendale@qtp.ufl.edu) who
was responsible for distributing the code.  I have also used geomos, for
doing INDO and CNDO calculations with geometry optimization.  Unless I
am missing something the parameters in Dr. Zerner's code (ZINDO) are
different from the old Pople and Beveridge parameters.  
Newsgroups: sci.chem