Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Geoffrey E. Hawkes"'
Publikováno v:
Molecules, Vol 16, Iss 11, Pp 9153-9160 (2011)
Aqueous infusions of the leaves of the shrub Albertisia delagoensis (Menispermaceae) are used in South Africa in traditional Zulu medicine to alleviate a variety of symptoms, including fever, and intestinal problems. We report the analysis of such an
Externí odkaz:
https://doaj.org/article/3defe5c045c1484eb5822d269e2651cf
Autor:
Alberto Sanchez-Medina, Christopher J. Etheridge, Geoffrey E. Hawkes, Peter J. Hylands, Barbara A. Pendry, Michael J. Hughes, Olivia Corcoran
Publikováno v:
Journal of Pharmacy & Pharmaceutical Sciences, Vol 10, Iss 4 (2007)
Purpose. To measure the rosmarinic acid content of eight commercial tinctures derived from fresh (n= 5) and dried (n=3) Melissa officinalis herb. Methods. Rosmarinic acid and the internal standard (esculin) were purchased from Aldrich Chemical Co. Th
Externí odkaz:
https://doaj.org/article/548d3f28803a473c8f3e6e6024b741fa
Autor:
John C. Lindon, Elaine Holmes, Paul Elliott, Elizabeth J. Want, Jeremiah Stamler, Geoffrey E. Hawkes, Leon M. Smith, Jeremy K. Nicholson, Anthony D. Maher
Publikováno v:
Analytical Chemistry. 81:4847-4856
Borate is an antibacterial preservative widely used in clinical and large-scale epidemiological studies involving urine sample analysis. Since it readily forms covalent adducts and reversible complexes with hydroxyl and carboxylate groups, the effect
Publikováno v:
Magnetic Resonance in Chemistry. 46:316-322
Solid-state (23)Na and (31)P magic-angle spinning nuclear magnetic resonance spectroscopy and X-ray crystallography have been used to study the structures of the chain metaphosphates NaCa(PO(3))(3) and NaSr(PO(3))(3). The compounds are isostructural
Publikováno v:
Journal of Materials Science: Materials in Medicine. 19:1687-1692
A model of the setting chemistry of glass-ionomer cements (GICs) is proposed based on 27Al and 29Si solid state nuclear magnetic resonance spectroscopy data on three GICs. All the precursor glasses are found to contain three aluminium species viz.: f
Publikováno v:
Journal of Non-Crystalline Solids. 337:1-8
Vitreous compositions in the (0.55− x )Na 2 O: x SrO:0.45P 2 O 5 (0⩽ x ⩽0.55) system were characterized by differential scanning calorimetry and 31 P solid state NMR. High strontium containing glasses were found to be partly crystallized. In th
Publikováno v:
Key Engineering Materials. :95-98
A set of Na-Sr-phosphate glass and glass-ceramic samples, wit h general formula xSrO:(0.55-x)Na 2O:0.45P 2O5, were prepared and analysed by solid state 31 P nuclear magnetic resonance spectroscopy and X-ray powder diffraction. The results show t he p
Autor:
Carl Thirsk, Melanie Steele, John E. Warren, Andrew Whiting, Rima Nasser, Robin G. Pritchard, Thomas Loerting, Klaus R. Liedl, Romano T. Kroemer, Geoffrey E. Hawkes
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1510-1519
2,7-Diisopropoxy-1,8-dibromonaphthalene 5 was prepared in two steps from 2,7-dihydroxynaphthalene and was coupled under Suzuki cross-coupling conditions with boronic acids 9 and 10 to provide the corresponding 1,8-diarylnaphthalene systems 12a and 13
Autor:
Harparkash Kaur, Jorge Alvar, Simon L. Croft, Karin Seifert, Gregory S. Coumbarides, Geoffrey E. Hawkes
Publikováno v:
The American Journal of Tropical Medicine and Hygiene
Miltefosine, an effective oral treatment of visceral leishmaniasis (VL), was selected in May 2005, by the governments of India, Nepal, and Bangladesh for the elimination of VL. However, abnormally high treatment failure rates reported in patients in
Publikováno v:
European Journal of Inorganic Chemistry. 2001:1005-1011
A gallium citrate complex (NH4)3[Ga(C6H5O7)2]·4H2O (1) has been isolated from an aqueous mixture of gallium nitrate and citric acid at pH = 9. In the solid state 1 is monomeric and includes the near centrosymmetric ion [Ga(C6H5O7)2]3− in the asymm