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Re: "molar" for concentration

From: Helena Deus <helenadeus@gmail.com>
Date: Wed, 17 Aug 2011 17:14:41 +0100
Message-ID: <CAPkJ_9kpvEjpD9tGNb9zbgT+0gigMPPaJOzp2HmBMELzomLFdA@mail.gmail.com>
To: Michael Miller <Michael.Miller@systemsbiology.org>
Cc: W3C HCLSIG hcls <public-semweb-lifesci@w3.org>
Hi Michael,

I was looking for a way to say in RDF that some concentration is measured in
 "molar";
e.g.

<assay>  <concentration>  "5"^^<http://someuri/molar>

Yes, Molar = mole/Liter, but from my (limited) understanding of datatypes,
there are no restrictions as to what can be used in the datatype URI

I'm not sure how to express the statement above if I need to combine mole
and liter to create a datatype...

Would something like:
<assay>  <concentration>  "5"^^[<http://someuri/mole> <
http://someuri/division> <http://someuri/liter>]

Work?

Cheers,
Lena


On Wed, Aug 17, 2011 at 4:03 PM, Michael Miller <
Michael.Miller@systemsbiology.org> wrote:

> hi lena,
>
>
>
> after looking at wikipedia i see what you mean that it isn't a unit per se,
> it is a concentration of a solution, that is by definition a combination of
> a value of 1 with an SI unit of 1 mol\L.  so it is certainly a property of
> the solution but i don't see how it is a datatype.  in programming terms i
> define a variable to be of a certain datatype:
>
>
>
> int count = 5
>
>
>
> what does it mean to say,
>
>
>
> Molar solution = ??
>
>
>
> cheers,
>
> michael
>
>
>
> *From:* Helena Deus [mailto:helenadeus@gmail.com]
> *Sent:* Tuesday, August 16, 2011 3:17 PM
> *To:* Michael Miller
> *Cc:* Jim McCusker; Matthias Samwald; W3C HCLSIG hcls
>
> *Subject:* Re: "molar" for concentration
>
>
>
> Hi Michael,
>
>
>
> I did mean datatype. I do like the MUO / SI solution, but it's strange that
> they don't describe "Molar" (much more widely used) along with "mole"? Sure
> enough I can "build" a Molar, as Jim indicated... but I can also "build" a
> month or an acceleration from days or meters+time, and yet they provide
> it... Interesting...
>
>
>
> Thanks all,
>
> Cheers,
>
> Lena
>
>
>
> On Tue, Aug 16, 2011 at 9:15 PM, Michael Miller <
> Michael.Miller@systemsbiology.org> wrote:
>
> hi all,
>
> i did take a quick look at MUO and it does seem sane.
>
>
> "For instance, MUO has the ability to assert units of measure on n-ary
>
> observations, ..."
>
> and MUO appears based on SI.
>
> cheers,
> michael
>
>
> > -----Original Message-----
> > From: public-semweb-lifesci-request@w3.org [mailto:public-semweb-
>
> > lifesci-request@w3.org] On Behalf Of Jim McCusker
> > Sent: Tuesday, August 16, 2011 12:58 PM
> > To: Matthias Samwald
> > Cc: Helena Deus; W3C HCLSIG hcls
>
> > Subject: Re: "molar" for concentration
> >
>
> > In general, you really want to be able to have additional levels of
> > qualification. For instance, MUO has the ability to assert units of
> > measure on n-ary observations, as well as to provide prefUnit
> > annotations on properties. An ontology that generates property URIs
> > for every quality and unit of measure would be huge and very
> > cumbersome, and I think the consensus is to annotate your own
> > properties with units of measure.
> >
> > Jim
> >
> > On Tue, Aug 16, 2011 at 3:43 PM, Matthias Samwald
> > <matthias.samwald@meduniwien.ac.at> wrote:
> > > Besides the ontologies already mentioned, the unit ontology /
> > > UO (http://obofoundry.org/cgi-bin/detail.cgi?id=unit) also has a
> > class for
> > > "mole" and one for "molar mass unit". But you actually wanted a URI
> > for a
> > > datatype so this (as well as the other ontologies mentioned before)
> > is
> > > probably not what you wanted.
> > >
> > > Does anybody know of an ontology that defines scientific datatypes in
> > OWL 2?
> > >
> > >  - Matthias
> > >
> > > From: Helena Deus
> > > Sent: Tuesday, August 16, 2011 5:23 PM
> > > To: W3C HCLSIG hcls
> > > Subject: "molar" for concentration
> > > Hi all,
> > > Wondering if anyone ever needed/came across a URI for datatype "M"
> > (molar,
> > > as in 10 M -> 10 Molar).
> > > http://en.wikipedia.org/wiki/Molar_concentration
> > >
> > > Cheers,
> > > --
> > > Helena F. Deus
> > > Post-Doctoral Researcher at DERI/NUIG
> > > http://lenadeus.info/
> > >
> >
> >
> >
> > --
> > Jim McCusker
> > Programmer Analyst
> > Krauthammer Lab, Pathology Informatics
> > Yale School of Medicine
> > james.mccusker@yale.edu | (203) 785-6330
> > http://krauthammerlab.med.yale.edu
> >
> > PhD Student
> > Tetherless World Constellation
> > Rensselaer Polytechnic Institute
> > mccusj@cs.rpi.edu
> > http://tw.rpi.edu
>
>
>
>
>
> --
> Helena F. Deus
>
> Post-Doctoral Researcher at DERI/NUIG
>
> http://lenadeus.info/
>
>
>



-- 
Helena F. Deus
Post-Doctoral Researcher at DERI/NUIG
http://lenadeus.info/
Received on Wednesday, 17 August 2011 16:15:31 UTC

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