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Showing 1 to 12 of 255 entries
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Evaluating hydrogen bonding control in the diastereoselective Diels-Alder reactions of 9-(2-aminoethyl)-anthracene derivatives.

Organic & biomolecular chemistry

Bawa RA, Gautier FM, Adams H, Meijer AJ, Jones S.
PMID: 26340318
Org Biomol Chem. 2015 Nov 14;13(42):10569-77. doi: 10.1039/c5ob01343g. Epub 2015 Sep 04.

Several 9-(2-aminoethyl)anthracene derivatives were prepared with different nitrogen substitutents including alkyl, acetamide, trifluoroacaeamide and t-butyl carbamate. The selectivity in Diels-Alder cyclodaddition reaction with N-methyl maleimide was evaluated through single crystal X-ray analysis of the products. Models for the change...

Identifying electron transfer coordinates in donor-bridge-acceptor systems using mode projection analysis.

Nature communications

Yang X, Keane T, Delor M, Meijer AJ, Weinstein J, Bittner ER.
PMID: 28233775
Nat Commun. 2017 Feb 24;8:14554. doi: 10.1038/ncomms14554.

We report upon an analysis of the vibrational modes that couple and drive the state-to-state electronic transfer branching ratios in a model donor-bridge-acceptor system consisting of a phenothiazine-based donor linked to a naphthalene-monoimide acceptor via a platinum-acetylide bridging unit....

Mechanistic insight into proton-coupled mixed valency.

Chemical communications (Cambridge, England)

Wilkinson LA, Vincent KB, Meijer AJ, Patmore NJ.
PMID: 26497070
Chem Commun (Camb). 2016 Jan 04;52(1):100-3. doi: 10.1039/c5cc07101a.

Stabilisation of the mixed-valence state in [Mo2(TiPB)3(HDOP)]2(+) (HTiPB = 2,4,6-triisopropylbenzoic acid, H2DOP = 3,6-dihydroxypyridazine) by electron transfer (ET) is related to the proton coordinate of the bridging ligands. Spectroelectrochemical studies suggest that ET is slower than 10(9) s(-1). The...

[Effectiveness of influenza vaccine in the Netherlands: predominant circulating virus type and vaccine match are important conditions].

Nederlands tijdschrift voor geneeskunde

van Doorn E, Darvishian M, Dijkstra F, Bijlsma MJ, Donker GA, de Lange MMA, Cadenau LM, Hak E, Meijer A.
PMID: 28558853
Ned Tijdschr Geneeskd. 2017;161:D1648.

OBJECTIVE: To investigate the relationship between circulating influenza virus A types and subtypes and influenza B lineages, their match with the vaccine and the effectiveness of the influenza vaccine (IVE).DESIGN: Test negative case control study.METHOD: We used data from...

Intracavity OptoGalvanic Spectroscopy not suitable for ambient level radiocarbon detection.

Analytical chemistry

Paul D, Meijer HA.
PMID: 26252648
Anal Chem. 2015 Sep 01;87(17):9025-32. doi: 10.1021/acs.analchem.5b02226. Epub 2015 Aug 13.

IntraCavity OptoGalvanic Spectroscopy as a radiocarbon detection technique was first reported by the Murnick group at Rutgers University, Newark, NJ, in 2008. This technique for radiocarbon detection was presented with tremendous potentials for applications in various fields of research....

Correction to online hydrogen-isotope measurements of organic samples using elemental chromium: an extension for high-temperature elemental-analyzer techniques.

Analytical chemistry

Gehre M, Renpenning J, Gilevska T, Qi H, Coplen TB, Meijer HA, Brand WA, Schimmelmann A.
PMID: 26284431
Anal Chem. 2015 Sep 01;87(17):9108. doi: 10.1021/acs.analchem.5b03098. Epub 2015 Aug 18.

No abstract available.

Simulation and virtual reality in surgical education: real or unreal?.

Archives of surgery (Chicago, Ill. : 1960)

Gorman PJ, Meier AH, Krummel TM.
PMID: 10555634
Arch Surg. 1999 Nov;134(11):1203-8. doi: 10.1001/archsurg.134.11.1203.

Rapid change is under way on several fronts in medicine and surgery. Advances in computing power have enabled continued growth in virtual reality, visualization, and simulation technologies. The ideal learning opportunities afforded by simulated and virtual environments have prompted...

Hydrogen-Bonded Complexes of Diaminopyridines and Diaminotriazines: Opposite Effect of Acylation on Complex Stabilities.

The Journal of organic chemistry

Beijer FH, Sijbesma RP, Vekemans JA, Meijer EW, Kooijman H, Spek AL.
PMID: 11667479
J Org Chem. 1996 Sep 06;61(18):6371-6380. doi: 10.1021/jo960612v.

The association behavior of several 2,4-diamino-s-triazines, 2,6-diaminopyridines, and their acylated derivatives with uracil derivatives was studied. In solution (1)H-NMR and IR spectroscopy were used, and in the solid state as (co)crystals X-ray diffraction was used. Acylation of 2,6-diaminopyridine leads...

Computer-assisted training and learning in surgery.

Computer aided surgery : official journal of the International Society for Computer Aided Surgery

Gorman PJ, Meier AH, Krummel TM.
PMID: 10862134
Comput Aided Surg. 2000;5(2):120-30. doi: 10.1002/1097-0150(2000)5:2<120::AID-IGS6>3.0.CO;2-L.

The teaching and learning of surgery is a time-honored tradition based upon the "see one, do one, teach one" apprenticeship model. Recent improvement of this model has centered upon incremental change in skills teaching and testing and curricular development....

Glucose 6-phosphate compartmentation and the control of glycogen synthesis.

Journal of hepatology

Meijer A.
PMID: 12175643
J Hepatol. 2002 Sep;37(3):417. doi: 10.1016/s0168-8278(02)00166-6.

No abstract available.

A Suzuki coupling based route to 2,2'-bis(2-indenyl)biphenyl derivatives.

The Journal of organic chemistry

IJpeij EG, Beijer FH, Arts HJ, Newton C, de Vries JG, Gruter GJ.
PMID: 11777455
J Org Chem. 2002 Jan 11;67(1):169-76. doi: 10.1021/jo016040i.

Because of the promising performance in olefin polymerization of 2,2'-bis(2-indenyldiyl)biphenyl zirconium dichloride, we developed a new and broadly applicable route to 2,2'-bis(2-indenyl)biphenyl derivatives. Reaction of the known 2,2'-diiodobiphenyl (26) with the new 2-indenyl boronic acid (23) did not result...

Standards for the Ph.D. Degree in the Molecular Biosciences.

Biochemical education

Vella F, de Meis L, Mehler AH, Rombauts W, White HB, Wood EJ.
PMID: 10717446
Biochem Educ. 2000 Jan 01;28(1):2-11. doi: 10.1016/s0307-4412(99)00123-5.

No abstract available.

Showing 1 to 12 of 255 entries