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Pr,

symbol for the element praseodymiumpraseodymium
[Gr., =green twin], metallic chemical element; symbol Pr; at. no. 59; at. wt. 140.90765; m.p. 931°C;; b.p. 3,512°C;; sp. gr. about 6.8; valence +3 or +4. Praseodymium is a soft, malleable, ductile, silver-yellow metal.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
Parks Directory of the United States, 5th Edition. © 2007 by Omnigraphics, Inc.

Pr

(chemistry)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

PR

On drawings, abbr. for “pair.”
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

PR

(1)

pr

(networking)
The country code for Puerto Rico.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
In conclusion, our patient with PM/SSc overlap syndrome developed SRC-related PRES. Here, adherence to BP maintenance and removing precipitating factors for PRES were important to avoid non-reversible consequences.
So the least we expect from Pres. Duterte is for him to try so we would know where the problems or what issues we need to address.
I have no doubt that Pres. Duterte's not giving any importance to Charter changes or the shift to a federal form of government has buoyed the yellowtards.
* Pres. James Buchanan's Offering a Full Pardon to Mormon Rebels in the Utah Territory (1858).
* Pres. Abraham Lincoln's Suspending the Writ of Habeas Corpus (1862).
Women were divided in two groups, A included women with findings of PRES, and B included eclamptic women with out findings of PRES on computed tomography.
Computed tomography (CT) results were available in 22patients.A total of nine women were identified with PRES. The women were divided in 2 groups, Group A, with findings of PRES, and Group B, without PRES.After clinical stabilization of blood pressure, these women underwent computed tomography of brain.
To support the request for the cy pres award, Foundation Executive Director Bruce
The Foundation presented Yanchunis the 2010 President's Award for Excellence for his work in directing cy pres awards to the Foundation and encouraging other attorneys to do the same.
Besides hypertension and immunosuppression, the risk factors most commonly as sociated with PRES include preeclampsia/ eclampsia; sepsis, particularly due to grampositive organisms; Wegener's granulomatosis, scleroderma, and polyarteritis nodosa; cancer chemotherapy; bone marrow or stem cell transplantation; and renal disease.
Although a clear cause of PRES has not yet been established, researchers have proposed 2 theories.