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Showing 25 to 36 of 407 entries
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A metal-free amination of benzoxazoles--the first example of an iodide-catalyzed oxidative amination of heteroarenes.

Organic letters

Froehr T, Sindlinger CP, Kloeckner U, Finkbeiner P, Nachtsheim BJ.
PMID: 21688859
Org Lett. 2011 Jul 15;13(14):3754-7. doi: 10.1021/ol201439t. Epub 2011 Jun 21.

An efficient transition-metal-free amination of benzoxazoles has been developed. With catalytic amounts of tetrabutylammoniumiodide (TBAI), aqueous solutions of H(2)O(2) or TBHP as co-oxidant and under mild reaction conditions, highly desirable 2-aminobenzoxazoles were isolated in excellent yields of up to...

Experimental evaluation of geometric accuracy and stability of the image orthicon for astronomical applications.

Applied optics

Powers WT, Burns J.
PMID: 20094217
Appl Opt. 1970 Sep 01;9(9):2172-5. doi: 10.1364/AO.9.002172.

Distortions were measured at thirty-six positions over the photocathodes of four different types of image orthicon tubes operated in a high precision camera system designed for astronomical use. Rms values of distortion for these tubes were found to be...

Investigation of power oscillations along tapered monomode fibers.

Applied optics

Gonthier F, Lapierre J, Veilleux C, Lacroix S, Bures J.
PMID: 20454154
Appl Opt. 1987 Feb 01;26(3):444-9. doi: 10.1364/AO.26.000444.

An abruptly tapered fiber can be essentially divided into three different regions: one beating region in its central, quasi-cylindrical part, lying between two coupling regions, where the slopes are large. In this paper we report two experiments which help...

Gold(III) complexes catalyze deoximations/transoximations at neutral pH.

Angewandte Chemie (International ed. in English)

Isart C, Bastida D, Burés J, Vilarrasa J.
PMID: 21365726
Angew Chem Int Ed Engl. 2011 Mar 28;50(14):3275-9. doi: 10.1002/anie.201007269. Epub 2011 Mar 01.

No abstract available.

Mechanism of orthotic therapy for the painful cavus foot deformity.

Journal of foot and ankle research

Najafi B, Wrobel JS, Burns J.
PMID: 24450305
J Foot Ankle Res. 2014 Jan 23;7(1):2. doi: 10.1186/1757-1146-7-2.

BACKGROUND: People who have extremely high arched feet or pes cavus often suffer from substantial foot pain. Custom-made foot orthoses (CFO) have been shown to be an effective treatment option, but their specificity is unclear. It is generally thought...

Importance and challenges of measuring intrinsic foot muscle strength.

Journal of foot and ankle research

Soysa A, Hiller C, Refshauge K, Burns J.
PMID: 23181771
J Foot Ankle Res. 2012 Nov 26;5(1):29. doi: 10.1186/1757-1146-5-29.

BACKGROUND: Intrinsic foot muscle weakness has been implicated in a range of foot deformities and disorders. However, to establish a relationship between intrinsic muscle weakness and foot pathology, an objective measure of intrinsic muscle strength is needed. The aim...

Synthesis and structural aspects of N-triflylphosphoramides and their calcium salts--highly acidic and effective Brønsted acids.

Chemistry (Weinheim an der Bergstrasse, Germany)

Rueping M, Nachtsheim BJ, Koenigs RM, Ieawsuwan W.
PMID: 20922721
Chemistry. 2010 Nov 22;16(44):13116-26. doi: 10.1002/chem.201001438.

Recently, 1,1'-bi-2-naphthol (BINOL)-based N-triflylphosphoramides emerged as a new class of potent Brønsted acid catalysts. In this paper we describe the efficient synthesis of various BINOL-based N-triflylphosphoramides and their calcium salts. Furthermore, X-ray crystal structure analysis combined with energy-dispersive X-ray...

Provision of foot health services for people with rheumatoid arthritis in New South Wales: a web-based survey of local podiatrists.

Journal of foot and ankle research

Hendry GJ, Gibson KA, Pile K, Taylor L, du Toit V, Burns J, Rome K.
PMID: 23972081
J Foot Ankle Res. 2013 Aug 26;6(1):35. doi: 10.1186/1757-1146-6-35.

BACKGROUND: It is unclear if podiatric foot care for people with rheumatoid arthritis (RA) in New South Wales (NSW) meets current clinical recommendations. The objective of this study was to survey podiatrists' perceptions of the nature of podiatric foot...

Retraction for Wong et al., "Estrogen receptor-interacting protein that modulates its nongenomic activity-crosstalk with Src/Erk phosphorylation cascade".

Proceedings of the National Academy of Sciences of the United States of America

Wong CW, McNally C, Nickbarg E, Komm BS, Cheskis BJ.
PMID: 19666546
Proc Natl Acad Sci U S A. 2009 Aug 18;106(33):14180. doi: 10.1073/pnas.0907607106. Epub 2009 Jul 28.

No abstract available.

Rationalization of an unusual solvent-induced inversion of enantiomeric excess in organocatalytic selenylation of aldehydes.

Angewandte Chemie (International ed. in English)

Burés J, Dingwall P, Armstrong A, Blackmond DG.
PMID: 25044727
Angew Chem Int Ed Engl. 2014 Aug 11;53(33):8700-4. doi: 10.1002/anie.201404327. Epub 2014 Jul 07.

An unusual solvent-induced inversion of the sense of enantioselectivity observed in the α-selenylation of aldehydes catalyzed by a diphenylprolinol silyl ether catalyst is correlated to the presence of intermediates formed subsequent to the highly selective C-Se bond-forming step in...

Exploring atomic-scale lateral forces in the attractive regime: a case study on graphite (0001).

Nanotechnology

Baykara MZ, Schwendemann TC, Albers BJ, Pilet N, Mönig H, Altman EI, Schwarz UD.
PMID: 22995789
Nanotechnology. 2012 Oct 12;23(40):405703. doi: 10.1088/0957-4484/23/40/405703. Epub 2012 Sep 20.

A non-contact atomic force microscopy-based method has been used to map the static lateral forces exerted on an atomically sharp Pt/Ir probe tip by a graphite surface. With measurements carried out at low temperatures and in the attractive regime,...

[Looking back at medical postgraduate certification - in medias res!].

Vnitrni lekarstvi

Matějovič M, Andĕl M, Sčudla V, Kvapil M, Zák A, Souček M, Bures J.
PMID: 24683666
Vnitr Lek. 2014 Jan;60(1):15-6.

No abstract available.

Showing 25 to 36 of 407 entries