537,066 research outputs found
Portrait of Glenn Murcutt, c 1980s [picture] /
No full textTitle from inscription on reverse.; Condition: Good.; Inscription: "Portrait of Glen [i.e. Glenn] Murcutt, c 80s. Jill White, 2001"--Handwritten in ink on reverse.; Part of the collection: Portraits by Jill White
David Moore at Kilcare, [N.S.W.], c. 1985 [picture] /
No full textTitle from inscription on reverse.; Condition: Good.; Inscription: "David Moore at Kilcare c 1985. Jill White, 2001"--Handwritten in ink on reverse.; Part of the collection: Portraits by Jill White
Letter re: Major S. C. White, Jr.
No full textLetter from Mrs. S. C. White, Jr. to Amon Carter thanking him for updating her on her husband in the military.Dear Mr. Carter, For some weeks I have been waiting to learn of your return home to write. While you were in Ireland my husband, Major S. C. White Jr., had the pleasure of meeting you and while there you cabled your office, including word of his welfare for me. I want to tell you how very much I appreciate your thoughtfulness in sending me the thrilling news and also to say how prompt and considerate your secretary was in phoning to deliver the message. I am afraid I was too excited to thank her coherently. You no doubt knew that the men you were with in Ireland were expecting to go to North Africa. My recent letters from Major White were written on the high seas but some received today give me reason to believe he is in North Africa now. I am sure you hear often from your son and are happy to know they reached the new war theatre safely - I am so thankful. Thank you again for your kindness. Sincerely yours, Mrs. S. C. White Jr. Tuesday January fifth
Molecular structure of highly excited resonant states in Mg-24 and the corresponding Be-8+O-16 and C-12+C-12 decays
No full textExotic Be-8 and C-12 decays from high-lying resonances in Mg-24 are analyzed in terms of a cluster model. The calculated quantities agree well with the corresponding experimental data. It is found that the calculated decay widths are very sensitive to the angular momentum carried by the outgoing cluster. It is shown that this property makes cluster decay a powerful tool to determine the spin as well as the molecular structures of the resonances.Physics, NuclearSCI(E)7ARTICLE5null8
The Sermons of R. C. White
Full text linkA collection of sermon notes from the preacher R. C. White. Contains foreword, introduction, notes on 101 sermons, and notes on funerals and marriage ceremonies. Many of the notes in this book contain sermon charts, which are graphic representations of the concepts discussed in the sermon. Often they illustrate various paths and the consequences that follow each of them.https://digitalcommons.acu.edu/crs_books/1530/thumbnail.jp
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Improving synthetic efficiency through C—H activation
No full textSelective C—H activation methods provide a complementary approach for synthesizing complex small molecules, which traditionally are constructed by chemists using C—C bond forming reactions to join preoxidized fragments. Furthermore, the strategic application of C—H activation reactions has considerable potential for improving the overall efficiency of synthetic endeavors by introducing functionality directly into preassembled hydrocarbon frameworks, mitigating the effect of having to carry
reactive functionality throughout a reaction sequence. With this goal in mind, this work describes a series
of projects that develop and implement novel C—H oxidation reactions and strategies.
Firstly, a mild and efficient oxidation strategy for the preparation of chiral polyols is presented and validated through an enantioselective synthesis of differentially protected L-galactose. This synthesis is
enabled by the development of a highly regio- and stereoselective linear allylic C—H oxidation reaction that generates 4-methoxybenzoate derivatives of chiral (E)-2-butene-1,4-diols directly from readily available chiral homoallylic alcohols and carboxylic acids.
Secondly, this work details the discovery of a heterobimetallic Pd(II)bis-sulfoxide/(Salen)Cr(III)F
catalyst system for asymmetric allylic C—H oxidation of terminal olefins. Evidence is provided that
supports a model in which a chiral Lewis acid co-catalyst interacts with an organometallic intermediate and influences the stereochemical course of the catalytic process. Additionally, this work establishes that the
asymmetric branched allylic oxidation reaction can be combined with other enantioselective
transformations to afford enantiopure, polyoxygenated allylic alcohols rapidly and in good yields.
Thirdly, this work outlines the development of a novel catalytic palladium(II)-based method for
the conversion of ketones, ketoesters, and aldehydes directly to their unsaturated homologs, without the need for prior activation of the carbonyl. Importantly, this reaction shows good to excellent reactivity and
unprecedented selectivities for a number of substrates with a diverse array of functional groups.
Preliminary mechanistic studies suggest the reaction proceeds through a Pd-enolate intermediate that undergoes successive beta-hydride elimination to give the desired unsaturated carbonyl compounds, and that the acid additive is a key promoter of the reaction.Item withdrawn by Mark Zulauf ([email protected]) on 2011-07-29T15:19:33Z
Item was in collections:
University of Illinois Theses & Dissertations (ID: 1)
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license.txt: 4063 bytes, checksum: 1a4310e26d024110321286fca217df0d (MD5)Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram ([email protected]) on 2012-02-01T00:50:22Z
Item is restricted until 2014-02-01T00:50:07ZItem reinstated by Sarah Shreeves ([email protected]) on 2014-02-01T11:00:26Z
Item was in collections:
Graduate Theses and Dissertations at Illinois (ID: 204)
Dissertations and Theses - Chemistry (ID: 676)
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license.txt: 4063 bytes, checksum: 1a4310e26d024110321286fca217df0d (MD5)Item released from any restrictions by Sarah Shreeves ([email protected]) on 2014-02-01T11:00:26
J. C. White and G. J. Telfer
No full text"SX9469 J.C. White 2'14 Aust Field Reg served in Darwin July 1941 - Jan 1943
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SX23959 G.J. Telfer 2'14 Aust Field Reg served in Darwin July 1941 - Jan 1943".SX9469 J.C. White 2'14 Australian Field Regiment served in Darwin July 1941 - January 1943
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SX23959 G.J. Telfer 2'14 Australian Field Regiment served in Darwin July 1941 - January 1943
Linear allylic C-H oxidation: methods and utility
No full textThe installation of complex functional groups through the use of C-H oxidation methodologies has the potential to dramatically increase the efficiency of synthetic sequences with respect to resources, time and overall steps to key intermediates. This work describes methods that target complex intermediates to show the scope, wide functional group tolerance, and streamlining utility of our allylic C-H oxidation chemistry. In general, functional groups are installed in complex molecules through the advent of sequential C-C bond forming reactions. This chemistry is not only well known, but has been employed for decades, resulting in the wide array of reaction conditions and electrophile/nucleophile pairs seen in the literature today. In contrast, the deliberate installation of functional groups through unactivated C-H bonds represents a new strategy for the construction of complex intermediates.
Previously, we have reported that the use -olefins, as an inert and readily available functional group handle, allows for the direct installation of allylic acetates via a Pd(II) catalysis. A clever implementation of this strategy shows its utility and ability to streamline the synthesis of known molecules (e.g. L-galatose). Further exploration of this reaction manifold gives rise to a linear allylic oxidation method requiring only coupling levels of almost any carboxylic acid to render linear (E)-allylic esters.
A significant problem with the Pd(II) allylic C-H oxidation reaction is the need for super-stoichiometric amounts of the oxidant benzoquinone. By employing a Co(II)Salophen catalyst, hydroquinone (the byproduct of benzoquinone oxidation) can be converted to benzoquinone using only molecular oxygen as terminal oxidant. This second catalytic system was found to be compatible with our allylic C-H oxidation reaction conditions and allows for the use of only catalytic amounts of the palladium-specific oxidant, thereby greatly reducing reaction waste. This process appears to be a general solution and can also be employed with the intera- and inter-molecular allylic C-H amination reactions developed in our lab.Item withdrawn by Mark Zulauf ([email protected]) on 2011-09-23T13:46:28Z
Item was in collections:
University of Illinois Theses & Dissertations (ID: 1)
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Item is restricted until 2014-02-01T00:50:07ZItem reinstated by Sarah Shreeves ([email protected]) on 2014-02-01T11:00:24Z
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Dissertations and Theses - Chemistry (ID: 676)
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