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Showing 1 to 12 of 197 entries
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Nanocomposite made of an oligo(p-phenylenevinylene)-based trihybrid thixotropic metallo(organo)gel comprising nanoscale metal-organic particles, carbon nanohorns, and silver nanoparticles.

Chemistry (Weinheim an der Bergstrasse, Germany)

Bhattacharjee S, Samanta SK, Moitra P, Pramoda K, Kumar R, Bhattacharya S, Rao CN.
PMID: 25677082
Chemistry. 2015 Mar 27;21(14):5467-76. doi: 10.1002/chem.201405522. Epub 2015 Feb 12.

A silver ion (Ag(+))-triggered thixotropic metallo(organo)gel of p-pyridyl-appended oligo(p-phenylenevinylene) derivatives (OPVs) is reported for the first time. Solubilization of single-walled carbon nanohorns (SWCNHs) in solutions of the pure OPVs as well as in the metallogels mediated by π-π interactions...

Cobalt N-Heterocyclic Phosphenium Complexes Stabilized by a Chelating Framework: Synthesis and Redox Properties.

Inorganic chemistry

Bezpalko MW, Poitras AM, Foxman BM, Thomas CM.
PMID: 27997160
Inorg Chem. 2017 Jan 03;56(1):503-510. doi: 10.1021/acs.inorgchem.6b02374. Epub 2016 Dec 20.

Two cobalt complexes containing coordinated N-heterocyclic phosphenium (NHP

Synthesis and Characterization of Aluminum Complexes of Redox-Active Pyridyl Nitroxide Ligands.

Inorganic chemistry

Poitras AM, Bogart JA, Cole BE, Carroll PJ, Schelter EJ, Graves CR.
PMID: 26513133
Inorg Chem. 2015 Nov 16;54(22):10901-8. doi: 10.1021/acs.inorgchem.5b01941. Epub 2015 Oct 29.

The aluminum complexes ((R)pyNO(-))2AlCl ((R)pyNO(-) = N-tert-butyl-N-(2-pyridyl)nitroxyl; R = H (1), CH3 (2), CF3 (3)) were prepared in 80-98% yield through the protonolysis reaction between the pyridyl hydroxylamine ligand precursors (R)pyNOH and dimethylaluminum chloride. Complex 1 was also prepared...

Dealing with Pheochromocytoma during the First Trimester of Pregnancy.

Case reports in obstetrics and gynecology

Kiroplastis K, Kambaroudis A, Andronikou A, Reklou A, Kokkonis D, Petras P, Mamopoulos A, Anagnostara E, Spyridis C.
PMID: 25838955
Case Rep Obstet Gynecol. 2015;2015:439127. doi: 10.1155/2015/439127. Epub 2015 Mar 08.

Purpose. Pheochromocytoma in association with pregnancy is a very rare, without specific symptoms, life-threatening condition, increasing both maternal and fetal mortality up to 50%. The present paper illustrates the case of a pregnant woman, diagnosed with pheochromocytoma, aiming to...

Design and plasma deposition of dispersion-corrected multiband rugate filters.

Applied optics

Poitras D, Larouche S, Martinu L.
PMID: 12211550
Appl Opt. 2002 Sep 01;41(25):5249-55. doi: 10.1364/ao.41.005249.

Inverse Fourier transform method has been commonly used for designing complex inhomogeneous optical coatings. Since it assumes dispersion-free optical constants, introducing real optical materials induces shifts in the position of reflectance bands in multiband inhomogeneous minus (rugate) filters. We...

Ion-beam etching for the precise manufacture of optical coatings.

Applied optics

Poitras D, Dobrowolski JA, Cassidy T, Moisa S.
PMID: 12868845
Appl Opt. 2003 Jul 01;42(19):4037-44. doi: 10.1364/ao.42.004037.

We propose using ion-beam etching as an additional tool for the accurate control of the thickness of thin films during the manufacture of sensitive optical multilayer coatings. We use a dual ion-beam sputtering system in the deposition and etch...

Guidelines for the diagnosis and management of carcinoid tumours. Part 1: the gastrointestinal tract. A statement from a Canadian National Carcinoid Expert Group.

Current oncology (Toronto, Ont.)

Maroun J, Kocha W, Kvols L, Bjarnason G, Chen E, Germond C, Hanna S, Poitras P, Rayson D, Reid R, Rivera J, Roy A, Shah A, Sideris L, Siu L, Wong R.
PMID: 17576444
Curr Oncol. 2006 Apr;13(2):67-76.

Carcinoid tumours are relatively rare and, in general, slow growing. They can be "non-functioning" tumours, presenting as a tumour mass, or "functioning" tumours secondary to the production of several biopeptides leading to the carcinoid syndrome. Though these tumours represent...

Toward perfect antireflection coatings. 3. Experimental results obtained with the use of Reststrahlen materials.

Applied optics

Dobrowolski JA, Guo Y, Tiwald T, Ma P, Poitras D.
PMID: 16539263
Appl Opt. 2006 Mar 01;45(7):1555-62. doi: 10.1364/ao.45.001555.

The equipment and methods used to produce wide-angle antireflection coatings based on Reststrahlen materials are described. The optical constants of the coating materials used in the construction of the multilayers were determined by spectrophotometric ellipsometry and are compared with...

[Family as care-givers : problem and impact of this policy in psychogeriatric.].

Sante mentale au Quebec

Gendron C, Poitras L.
PMID: 17093613
Sante Ment Que. 1989;14(1):179-90.

Home care by the family is considered the principal alternative to institutional placement for patients with dementia. This solution can have large repercussions on the quality of life, the health, and the emotional state of the person who is...

Healthcare professionals' intentions to use wiki-based reminders to promote best practices in trauma care: a survey protocol.

Implementation science : IS

Archambault PM, Légaré F, Lavoie A, Gagnon MP, Lapointe J, St-Jacques S, Poitras J, Aubin K, Croteau S, Pham-Dinh M.
PMID: 20540775
Implement Sci. 2010 Jun 11;5:45. doi: 10.1186/1748-5908-5-45.

BACKGROUND: Healthcare professionals are increasingly using wikis as collaborative tools to create, synthesize, share, and disseminate knowledge in healthcare. Because wikis depend on collaborators to keep content up-to-date, healthcare professionals who use wikis must adopt behaviors that foster this...

Asymmetrical dual-cavity filters and their application to thickness uniformity monitoring.

Optics express

Poitras D.
PMID: 19471470
Opt Express. 2003 Dec 15;11(25):3393-403. doi: 10.1364/oe.11.003393.

The use of asymmetrical dual-cavity (ADC) fi lters with two transmittance peaks is proposed for a simultaneous monitoring of the thickness uniformities of high- and low-index materials. The method described works independently of the manufacturing technique used, and can...

WDM-compatible mode-division multiplexing on a silicon chip.

Nature communications

Luo LW, Ophir N, Chen CP, Gabrielli LH, Poitras CB, Bergmen K, Lipson M.
PMID: 24423882
Nat Commun. 2014;5:3069. doi: 10.1038/ncomms4069.

Significant effort in optical-fibre research has been put in recent years into realizing mode-division multiplexing (MDM) in conjunction with wavelength-division multiplexing (WDM) to enable further scaling of the communication bandwidth per fibre. In contrast, almost all integrated photonics operate...

Showing 1 to 12 of 197 entries