Search Results - (Author, Cooperation:F. Walsh)
-
1Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-05-16Publisher: The American Association for Cancer Research (AACR)Print ISSN: 0008-5472Electronic ISSN: 1538-7445Topics: MedicinePublished by: -
2Latest Papers from Table of Contents or Articles in PressLandeiro, F., Walsh, K., Ghinai, I., Mughal, S., Nye, E., Wace, H., Roberts, N., Lecomte, P., Wittenberg, R., Wolstenholme, J., Handels, R., Roncancio-Diaz, E., Potashman, M. H., Tockhorn-Heidenreich, A., Gray, A. M., on behalf of the ROADMAP Group
BMJ Publishing
Published 2018Staff ViewPublication Date: 2018-03-31Publisher: BMJ PublishingElectronic ISSN: 2044-6055Topics: MedicineKeywords: Open access, Geriatric medicinePublished by: -
3Latest Papers from Table of Contents or Articles in PressM. Roffet-Salque ; M. Regert ; R. P. Evershed ; A. K. Outram ; L. J. Cramp ; O. Decavallas ; J. Dunne ; P. Gerbault ; S. Mileto ; S. Mirabaud ; M. Paakkonen ; J. Smyth ; L. Soberl ; H. L. Whelton ; A. Alday-Ruiz ; H. Asplund ; M. Bartkowiak ; E. Bayer-Niemeier ; L. Belhouchet ; F. Bernardini ; M. Budja ; G. Cooney ; M. Cubas ; E. M. Danaher ; M. Diniz ; L. Domboroczki ; C. Fabbri ; J. E. Gonzalez-Urquijo ; J. Guilaine ; S. Hachi ; B. N. Hartwell ; D. Hofmann ; I. Hohle ; J. J. Ibanez ; N. Karul ; F. Kherbouche ; J. Kiely ; K. Kotsakis ; F. Lueth ; J. P. Mallory ; C. Manen ; A. Marciniak ; B. Maurice-Chabard ; M. A. Mc Gonigle ; S. Mulazzani ; M. Ozdogan ; O. S. Peric ; S. R. Peric ; J. Petrasch ; A. M. Petrequin ; P. Petrequin ; U. Poensgen ; C. J. Pollard ; F. Poplin ; G. Radi ; P. Stadler ; H. Stauble ; N. Tasic ; D. Urem-Kotsou ; J. B. Vukovic ; F. Walsh ; A. Whittle ; S. Wolfram ; L. Zapata-Pena ; J. Zoughlami
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-11-13Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Africa, Northern ; Animals ; Archaeology ; Beekeeping/*history ; *Bees ; Ceramics/chemistry/history ; Europe ; Farmers/history ; Geographic Mapping ; History, Ancient ; Lipids/analysis/chemistry ; Middle East ; Spatio-Temporal Analysis ; Waxes/*analysis/chemistry/*historyPublished by: -
4Articles: DFG German National LicensesHerron, M. E. ; Doyle, S. E. ; Roberts, K. J. ; Robinson, J. ; Walsh, F. C.
[S.l.] : American Institute of Physics (AIP)
Published 1992Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: As an integral part of a program to develop x-ray techniques for in situ structural studies of electrode surfaces, a series of experiments has been carried out using x-ray diffraction (XRD) and x-ray absorption spectroscopy (XAS) at the Daresbury SRS. These studies, which involve continuous control of the electrode potential and the need to probe the electrode surface with synchrotron radiation, demand careful attention to cell design. Three types of experiment are described in order to illustrate possible approaches to cell design and the versatility of in situ x-ray techniques.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesBarlow, N. ; Brennan, C. ; Doyle, S. E. ; Greaves, G. N. ; Miller, M. ; Nahle, A. H. ; Roberts, K. J. ; Robinson, J. ; Sherwood, J. N. ; Walsh, F. C.
[S.l.] : American Institute of Physics (AIP)
Published 1989Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: X-ray diffraction and absorption spectroscopy provide complementary structural tools for the in situ characterization of electrode surfaces. To optimize surface sensitivity, techniques such as glancing angle scattering geometries and spectrum differencing can be employed while the application of synchrotron radiation allows the real-time collection of data. This paper outlines recent developments in in situ electrochemistry on the Daresbury SRS and describes an electrochemical cell for in situ x-ray studies, associated glancing angle instrumentation, together with computer hardware and software optimized for data acquisition using potential modulation techniques. Important fundamental and industrial applications are highlighted.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesCavicchioli, L. ; Flanigan, T. P. ; Vantini, G. ; Fusco, M. ; Polato, P. ; Toffano, G. ; Walsh, F. S. ; Leon, A.
Oxford, UK : Blackwell Publishing Ltd
Published 1989Staff ViewISSN: 1460-9568Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: In order to study the ligand-mediated regulation of NGF receptors in vivo, we assessed NGF receptor mRNA in the septal area of both neonatal and adult rats following intraventricular NGF administration. In neonatal rats NGF treatment, in comparison with cytochrome c, elicited a pronounced augmentation in the level of NGF receptor mRNA. A similar effect was also observed following continuous intraventricular NGF infusion in young adult rats. In addition, in this latter case, the increase in NGF receptor mRNA was associated with an increase in NGF receptor-related immunoreactivity, most likely associated with the cholinergic neurons, in the septal area. These results show that NGF itself may regulate expression of NGF receptor mRNA and corresponding protein levels in forebrain cholinergic neurons and suggest that NGF effects in the CNS may be mediated by an up-regulation of NGF receptors.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesStaff View
ISSN: 1365-2044Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineType of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesModena, A. ; Najmudin, Z. ; Dangor, A. E. ; Clayton, C. E. ; Marsh, K. A. ; Joshi, C. ; Malka, V. ; Darrow, C. B. ; Danson, C. ; Neely, D. ; Walsh, F. N.
[s.l.] : Nature Publishing Group
Published 1995Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The maximum amplitude of a plasma oscillation can be obtained from nonlinear plasma theory. As the wave grows, its waveform is no longer sinusoidal, that is, it steepens. In the cold-plasma theory5'7, wave-breaking occurs when this steepening is so extreme that there are singularities in ...Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 0013-4686Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 0001-6918Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: PsychologyType of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract Mass transport to rotating cylinder electrodes (radius 0.5 cm and height 1.2 cm) fabricated from reticulated vitreous carbon (RVCRCE) was investigated using linear sweep voltammetry in a 0.5 m Na2SO4 + 1 mm CUSO4 electrolyte at pH 2. At a fixed cupric ion concentration the limiting current was found to be dependent upon velocity to the power 0.55 to 0.71 depending upon the porosity grade of the carbon foam. The product of mass transport coefficient and specific electrode area, km A e, was found to be approximately 0.51 s−1 at 157 rad s−1 (corresponding to 1500 rpm) for the 100 ppi material. The experimental data are compared to the predicted performance of a hydrodynamically smooth rotating disc electrode (RDE) and rotating cylinder electrode (RCS).Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesWalsh, F. C. ; Owen, John ; Zhu, Yingyang ; Booth, C. ; Bartlett, P. N. ; Couper, A. M.
Springer
Published 1992Staff ViewISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract The electrodeposition of copper, gold, nickel, palladium and platinum onto Ebonex® ceramic cathodes has been studied. It is demonstrated that good quality deposits may be obtained and that the kinetics of the deposition and dissolution of metals are similar at Ebonex® to other common substrates (for example, Pt, C). In addition, the kinetics of some simple redox couples at coated and bare Ebonex® ceramic electrodes are compared; it is confirmed that such electron transfer reactions are very slow on the bare Ebonex® ceramic but when the surface is coated with a metal, the kinetics are similar to those on the bulk metal.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract A FMO1-LC parallel plate, laboratory electrochemical reactor has been modified by the incorporation of stationary, flow-by, three-dimensional electrodes which fill an electrolyte compartment. The performance of several electrode configurations including stacked nets, stacked expanded metal grids and a metal foam (all nickel) is compared by (i) determining the limiting currents for a mass transport controlled reaction, the reduction of ferricyanide in 1 m KOH and (ii) measuring the limiting currents for a kinetically controlled reaction, the oxidation of alcohols in aqueous base. It is shown that the combination of the data may be used to estimate the mass transfer coefficient, κL, and the specific electrode area, A e, separately. It is also confirmed that the use of three dimensional electrodes leads to an increase in cell current by a factor up to one hundred. Finally, it is also shown that the FM01-LC reactor fitted with a nickel foam anode allows a convenient laboratory conversion of alcohols to carboxylic acids; these reactions are of synthetic interest but their application has previously been restricted by the low rate of conversion at planar nickel anodes.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Keywords: Magnéli phases ; substoichiometric ; conductive ; titanium oxidesSource: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract Magnéli phases are a range of substoichiometric oxides of titanium of the general formula TinO2n−1, (where n is between 4 and 10) produced from high temperature reduction of titania in a hydrogen atmosphere. These blue/black ceramic materials exhibit a conductivity comparable to that of graphite and can be produced in a number of forms, such as tiles, rods, fibres, foams and powders. While these materials have been studied for many years, they have only recently received interest for use as ceramic electrode materials, commercially termed ‘Ebonex®’, and are beginning to challenge precious metal coated anodes for some applications in aggressive electrolytes. Other uses for these materials include electrowinning, electroplating, battery materials, impressed current cathodic protection anodes, electrochemical soil remediation, oxidation of organic wastes, flexible cable materials and electrophoresis. The scope of this review considers the structure and properties of Magnéli phase titanium oxide materials, together with their electrochemical behaviour and applications.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Keywords: filter press ; parallel plate ; electrochemical reactor design ; electroorganic synthesis ; FM01-LC electrolyserSource: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract This work extends the range of electrodes and conditions under which the FM01-LC reactor has been used in a laboratory environment and evaluates the performance of carbon electrodes. Reticulated vitreous carbon (RVC) has been used to provide a stable, inert, three-dimensional electrode surface for organic electrosynthesis; its performance is compared to that of nickel mesh for the oxidation of catechol to o-quinone. This product was then reacted in situ with (i) 4-hydroxycoumarin and (ii) 1,3-dimethylbarbituric acid to produce, respectively, coumestan and catecholamine, products of synthetic interest. In mass transport experiments using hydroquinone oxidation as a model reaction, performance was similar to nickel electrodes, but Sherwood numbers were reduced by about 5–10% when carbon electrodes were used. The best-performing RVC electrode, however, showed poorer behaviour than its nickel counterpart. Yields for the production of coumestan and catecholamine were approximately 45% and 25%, respectively, although this was mostly due to extraction problems, since current efficiencies were both in the region of 65–70%. The electrode material, rather than the fluid flow behaviour, leads to a reduction in overall cell efficiency; this is confirmed by studies which show a film forming on the surface of the electrode.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract A flow-through cell using ion-selective electrodes has been designed for continuous on-line monitoring of electrochemical reactors. A full range of design considerations is discussed and the characteristics of the cell investigated. Optimal operating conditions are found, of which solution flow rate and constancy of temperature are particularly important. The cell was also designed to have a rapid response time and minimal ‘dead’ volume so as to give continuous measurements of gradually changing metal ion concentrations. Performance has been evaluated using laboratory-simulated conditions and pilot-plant operation of the Ecocell, a rotating-cylinder electrode reactor for the electrowinning of copper from dilute solutions (10–1000 ppm).Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract Recent developments in the theory and applications of rotating cylinder electrodes are reviewed. Particular attention is paid to the mass transfer behaviour and the development of turbulent flow patterns, and its exploitation in electrochemical reactors for a variety of applications including metal deposition from waste and effluent liquors.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract The cathodic deposition of copper from acid sulphate solution containing copper(II) has been used to characterize the mass transport properties of reticulated vitreous carbon cathodes, operated in the flow-by mode. Current-potential curves recorded at a rotating vitreous carbon disc electrode were used to determine the diffusion coefficient for copper(II) under the conditions of the experiments and also to elucidate the effect of oxygen in the electrolyte stream. Pressure drop measurements have been used to separate the mass transport coefficient and real surface area effect for four grades of reticulated vitreous carbon, nominally having 10, 30, 60, 100 pores per inch.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyNotes: Abstract The performance of cells with reticulated vitreous carbon cathodes for the removal of low levels of copper ions from aqueous, acidic sulphate media is described. During the batch recirculation of nitrogen-sparged, sodium sulphate solutions, pH 2, the copper ion concentration may be reduced from 10 p.p.m. to 〈0.5 p.p.m. or from 2.5 p.p.m. to 〈0.1 p.p.m. with overall current efficiencies of 84% and 42%, respectively. The influence of solution flow rate through the cathode and the choice of the grade of the reticulated carbon is discussed. The removal of copper ions from solutions of low ionic strength, saturated with air and/or containing chloride ion is also investigated.Type of Medium: Electronic ResourceURL: