Warrickball

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Re:Statistic Removal from Brain Drain

The problem with the table at [1] is that it applies only to immigrants who have been in Canada less than six months, as can be verified by reading the full report the table is attached to. The actual figures for all immigrants can be found at [2]. They show that as a whole immigrants have slightly higher than average unemployment rate, but not enough to have much of an impact. - SimonP (talk) 13:13, 9 June 2008 (UTC)

Oxford Wikimania 2010 and Wikimedia UK v2.0 Notice

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Pseudoscalar

(I posted this elsewhere but since you made the penultimate talkpage post for the page I figured you'd be the person to ask)

Whilst this is supposedly my area of expertise, I feel I need some advice regarding this article. As you can see from the edit history, I removed the Clifford algebra section, not because it is wrong per se, but for the reason that it was inconsistent with the rest of the article. However, despite a Google scholar search, I'm still not too clear on what a pseudoscalar is, or if there really are two distinct definitions.

If we are to take the statement that "The pseudoscalar is the top-grade element of a Clifford algebra" as truth, then it is wrong to state that it need commute with all other elements and change sign under parity inversion. These are both true if the algebra has an odd underlying basis (number of basis vectors), but neither are true if the underlying basis is even.

Unfortunately, some of the same literature that state one definition seem to suggest that the other is equally general. Thus I am unsure how to proceed.

Given that only odd-dimensional space possesses anything like a pseudoscalar as currently defined in the article, I am slightly suggesting scrapping the current content and replacing it with the Clifford algebra definition (the bit I removed, perhaps wrongly). I am also questioning the article's status on the importance scale as "low", given the number of references in physics publications.

This paper seems to introduce the commuting and parity-inversion properties but in passing for a geometry in which this is true. [[3]]

Please may I have some advice.

--Leon (talk) 18:08, 2 August 2009 (UTC)

Paczyński–Wiita potential

This is an automated message from CorenSearchBot. I have performed a web search with the contents of Paczyński–Wiita potential, and it appears to be a substantial copy of http://www.aanda.org/index.php?option=com_intuition&task=authors&dkey=10.1051/0004-6361/200912155&lang=en.

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June 2016

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• By linearly perturbing the equations defining the mechanical equilibrium of a star (i.e. mass conservation and [[hydrostatic equilibrium]] and assuming that the perturbations are

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File:SpTs pickles1998.png

Very nice on File:SpTs pickles1998.png! Would you mind if I moved the file to Commons? — Huntster (t @ c) 22:48, 22 October 2016 (UTC)

Thanks! You're more than welcome to copy it across or if you let me know how to do it, I can, since it's probably something useful to know around here. Also, any suggestions on the image are welcome. Incidentally, if it does move, would it be better that I make any updates there? I'm not sure how the files here at English Wikipedia and the Commons are linked. Warrickball (talk) 08:10, 23 October 2016 (UTC)

Okay, I've moved it to Commons under the filename File:Dwarf star spectra (luminosity class V) from Pickles 1998.png (we always want filenames that are accessible and descriptive, rather than coded. They don't need to be short). Only admins can copy files across projects, so I would suggest uploading any future files directly to Commons, since it is a repository of free files that any Wikimedia project can access, whereas if a file is saved to en.wikipedia, only our local project can use it. Any updates or modifications to the file (or description) should be made at Commons. Please ask any questions that come to mind about any topic, I'm very happy to support file creators! — Huntster (t @ c) 11:13, 23 October 2016 (UTC)

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