Výsledky vyhledávání - "Peter Speers"

Hydrogen Mobility Europe (H2ME): Vehicle and Hydrogen Refuelling Station Deployment Results

Autor: Peter Speers

Publikováno v: World Electric Vehicle Journal; Volume 9; Issue 1; Pages: 2

Hydrogen Mobility Europe (H2ME, 2015–2022) is the largest European Fuel Cells and Hydrogen Joint Undertaking (EU FCH JU)-funded hydrogen light vehicle and infrastructure demonstration. Up until April 2017, the 40 Daimler passenger car fuel cell ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0859747d08966342cff0d1089800767
https://doi.org/10.3390/wevj9010002

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Synthesis and characterisation of D-amino acid-based oligopeptides for use as probes of the influence of molecular structure on the paracellular route of gastrointestinal drug uptake

Autor: G. Warhurst, R. Wilcock, Malcolm Rowland, Kenneth T. Douglas, Peter Speers

Publikováno v: Amino Acids. 12:185-189

A series of peptides based on D-amino-acids, and with an N-terminal D-phenylalanine residue, was synthesised by solution methods using t-butoxycarbonyl amino protection. These peptides were designed to resist metabolism in the gastrointestinal tract

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26a22407024f5234614c662edd0c06da
https://doi.org/10.1007/bf01386481

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Synthesis and comparative conformational energetics of D-phenylalanylsarcosine and its cyclic dehydration product, (R)-1-methyl-3-(phenylmethyl)-2,5-piperazinedione

Autor: Kenneth T. Douglas, R. Wilcock, Peter Speers, Cecil Chan

Publikováno v: Amino Acids. 12:49-56

Synthetic protocols are presented both for D-PheSar and the corresponding cyclised diketopiperazine, prepared from N-t-butoxycarbonylprotected D-PheSar. Deprotection conditions could be manipulated to yield either D-Phenylalanylsarcosine or (R)-1-met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::184fda07f4f68dc713d523a0f1d46cb8
https://doi.org/10.1007/bf01373426

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[Untitled]

Autor: D Walker, E Sims, Andrew Collett, Malcolm Rowland, John Ayrton, Yan Ling He, Geoffrey Warhurst, Peter Speers

Publikováno v: Pharmaceutical Research. 14:767-773

Purpose. The relative contribution of the small and large intestine to paracellular absorption is a subject of some controversy. Direct comparison of paracellular permeability in different epithelia is complicated by variations in junctional density

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::963d0cdeee6288d0bea23a6f4c644225
https://doi.org/10.1023/a:1012154506858

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Origin of depressed dipole moments in five-membered, unsaturated heterocycles

Autor: Andrew Streitwieser, Keith E. Laidig, Peter Speers

Publikováno v: Canadian Journal of Chemistry. 74:1215-1220

The smaller molecular dipole moments of cyclopentadiene, pyrrole, furan, and thiophene, relative to their saturated analogs, are investigated using the HF/6-311++G**//HF/6-311++G** level of theory. Investigation of the atomic origins of the molecular

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2291b687c2b02cb34d72b78f34bee356
https://doi.org/10.1139/v96-136

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Electron Delocalization and the Fermi Hole

Autor: Keith E. Laidig, Peter Speers, Andrew Streitwieser, Arnst Neuhaus, Richard F. W. Bader

Publikováno v: Journal of the American Chemical Society. 118:4959-4965

The delocalization of electrons is controlled by the Pauli exclusion principle through a corresponding delocalization of the density of the Fermi hole for electrons of given spin. It is proposed that the spatial distribution of the Fermi-hole density

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d635cff6e69ae8038ae67397d2a05c6
https://doi.org/10.1021/ja953563x

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