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Your search keyword '"McGrath, Kevin P."' showing total 194 results
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194 results on '"McGrath, Kevin P."'

153. Northern (F).

Author

McGrath, Kevin

Subjects
ASSOCIATIONS, institutions, etc.
Abstract

This article discusses the obituary of Gaston, Boissonneault, a leader of the MAAC, and Indoor Committees.

Published
2015

183. Northern (F).

Author

McGrath, Kevin

Subjects
MODEL airplanes, MODEL airplane racing
Abstract

The article focuses on the 2015 Zone Fun Fly, which centers on the annual award of the zone trophy which was donated by Steve Dew, to be hosted by the Cambrian Club.

Published
2014

184. Northern Ontario (F).

Author

McGrath, Kevin

Subjects
MODEL airplanes, MEMBERSHIP in associations, institutions, etc., SOCIETIES
Abstract

The article offers updates on the Model Aeronautics Association of Canada (MAAC) zonal memberships and programs in Northern Ontario (F) wherein the author discusses the season of designing and building kits for a remarkable airplane model.

Published
2013

185. Northern (F).

Author

McGrath, Kevin

Subjects
MODEL airplanes, AERONAUTICS, SOCIETIES
Abstract

The author discusses the highlights of the Zone Fun Fly event by the Model Aviation Association of Canada in the Cambria Island in Ontario in July 2013.

Published
2013

186. Northern Ontario (F).

Author

McGrath, Kevin

Subjects
ASSOCIATIONS, institutions, etc., AERONAUTICS, MODEL airplanes
Abstract

The article reports on Fun Fly events hosted by the Northern Ontario Zone of the Model Aeronautics Association of Canada (MAAC) in 2011 including one at the Timmins Golden Hawks RC Model Aircraft Club and another hosted by Scale Aerobatics chair Lee Prevost at the Great White North field.

Published
2011

190. ⁎⁎Invited to participate in the poster session of the asge meeting.4591 Prospective evaluation of the incremental sensitivity for diagnostic eus-guided fnab.

Author

Ciaccia, Dan, McGrath, Kevin, Kim, Julia, Devereaux, Ben, Imperiale, Tom, Al-Assi, Mohamed, Kiel, Julia, Chappo, John, Chriswell, Melissa, and Sherman, Stuart

Abstract

The clinical utility of EUS has expanded after introducing EUS guided fine needle aspiration biopsy (FNAB). The optimal number of tissue passes needed for diagnostic certainty is unclear. While the presence of the cytopathologist (Cpt) during the FNAB is preferred, this may not be possible. The optimal number of passes needed to reach a diagnosis (dx) may provide important information to the endoscopist. This study was undertaken to 1.) determine the optimal number of passes needed during EUSFNAB to reach the correct diagnosis by evaluating the sequential sensitivity (Se), specificity (Sp), yield and certainty of the EUS-FNAB; 2.) and stratify the above by biopsy site. METHODS: 104 consecutive pts. had EUS FNAB (22 G needle) with sufficient follow-up on 96 pts. Seven or greater (=) passes/lesion were performed. The slides were read sequentially by the study Cpt who recorded the adequacy and certainty of the FNAB after each pass (Certainty score: 3- certain). The results of surgical pathology and clinical F/U served as the gold standard. The above parameters were calculated for pancreatic lesions , lymph nodes (LNs) and miscellaneous. RESULTS: Among 96 pts.,(50M/46W/mean age-62/10 month F/U) there were no complications. The graph illustrates the sequential increase in Se in pts. with a certainty score of 3. Our data shows that for pancreatic (n=34) and miscellaneous lesions, 7 passes is the optimal number of passes required to achieve a high certainty in dx. For ≥7 passes of the pancreas: Se 83.3%, Sp 100%, PPV 100%, and NPV 44.4%. For LNs (n=43) 5 passes is the optimal number to achieve an accurate dx. The operating characteristics for LN are: Se 77.3%, Sp 100%, PPV 100%, and NPV 81%. CONCLUSIONS: This study suggests that 7 FNA passes should be performed on any pancreatic lesion and 5 passes should be performed on any lymph node to ensure a high certainty of reaching a cytologic dx.

Published
2000
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192. Hughes readies satellite technology to provide unlimited possibilities.

Author

McGrath, Kevin N.

Abstract

Focuses on Spaceway satellites built by Hughes Communications Incorporated. Geostationary orbit around the earth; Provision of personal teleconferencing services to businesses; Use of technology developed for military communications; Transmission via antennas; Benefits to employees and employers.

Published
1994

193. Playing with Fire.

Author

McGrath, Kevin

Subjects
POETRY (Literary form), FICTION
Abstract

Reviews the book "Playing with Fire," by Grevel Lindop.

Published
2006

194. Synthesis of quaternary carbon stereogenic centers through enantioselective Cu-catalyzed allylic substitutions with vinylaluminum reagents.

Author

Gao F, McGrath KP, Lee Y, and Hoveyda AH

Subjects
Catalysis, Stereoisomerism, Allyl Compounds chemistry, Aluminum chemistry, Carbon chemistry, Copper chemistry, Indicators and Reagents chemistry
Abstract

Catalytic enantioselective allylic substitution (EAS) reactions, which involve the use of alkyl- or aryl-substituted vinylaluminum reagents and afford 1,4-dienes containing a quaternary carbon stereogenic center at their C-3 site, are disclosed. The C-C bond-forming transformations are promoted by 0.5-2.5 mol % of sulfonate bearing chiral bidentate N-heterocyclic carbene (NHC) complexes, furnishing the desired products efficiently (66-97% yield of isolated products) and in high site (>98% S(N)2')- and enantioselectivity [up to 99:1 enantiomer ratio (er)]. To the best of our knowledge, the present report puts forward the first cases of allylic substitution reactions that result in the generation of all-carbon quaternary stereogenic centers through the addition of a vinyl unit. The aryl- and vinyl-substituted vinylaluminum reagents, which cannot be prepared in high efficiency through direct reaction with diisobutylaluminum hydride, are accessed through a recently introduced Ni-catalyzed reaction of the corresponding terminal alkynes with the same inexpensive metal-hydride agent. Sequential Ni-catalyzed hydrometalations and Cu-catalyzed C-C bond-forming reactions allow for efficient and selective synthesis of a range of enantiomerically enriched EAS products, which cannot be accessed by previously disclosed strategies (due to inefficient vinylmetal synthesis or low reactivity and/or selectivity with Si-substituted derivatives). The utility of the protocols developed is demonstrated through a concise enantioselective synthesis of natural product bakuchiol.

Published
2010
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