18,976 research outputs found
[Affidavit In Any Fact by Bonnie Ray Williams #1]
No full textAffidavit In Any Fact by Bonnie Ray Williams, an employee of the Texas School Book Depository. Williams states that Lee Harvey Oswald had worked at the building for six weeks, and that he did not see him after 8 am the morning of the shooting. He describes watching the motorcade from the 5th floor of the building and hearing shots coming from above
X-ray Absorption And X-ray Fluorescence For The Characterization Of Titanium Oxide-modified Hflc Silicas
No full textTitanium oxide grafted on to the surfaces of chromatographic silica was investigated by x-ray fluorescence (XRF) and x-ray absorption (XAS) spectroscopy and the latter used before and after the extensive use of this material as a support for reversed-phase high-performance liquid chromatography (RP-HPLC). XRF indicated the formation of a complete 2:1 monolayer whereas XAS suggested the presence of more than one titanium oxide structure. These structures show some slight modification after immobilization of PMOS and use in HPLC. Copyright © 2005 John Wiley & Sons, Ltd.352101105Collins, C.H., Braga, G.L., Bonato, P.S., (1995) Introduçao a Mrétodos Cromatográficos (6th Edn), , Editora da UNICAMP: CampinasNawrocki, J., (1997) J. Chromatogr. A, 779, p. 29Nawrocki, J., Dunlap, C., McCormick, A., Carr, P.W., (2004) J. Chromatogr. A, 1028, p. 1Buchmeiser, M.R., (2001) J. Chromatogr. A, 918, p. 233Snyder, L.R., Glajch, J.L., Kirkland, J.J., (1988) Pratical HPLC Method Development (5th Edn), , Wiley: New YorkPoole, C.H., Schuette, S.A., (1984) Contemporary Practice of Chromatography (1st Edn), , Elsevier: AmsterdamTrüdinger, U., Müller, G., Unger, K.K., (1990) J. Chromatogr A, 535, p. 111Silva, R.B., Collins, K.E., Collins, C.H., (2000) J. Chromatogr. A, 869, p. 137Prado, L.L.L., Nascente, P.A.P., Gushikem, Y., (2000) J. Mater. Sci., 35, p. 449Kubota, L.T., Gushikem, Y., (1991) Analyst, 116, p. 281Peixoto, C.R.M., Gushikem, Y., (1992) Analyst, 117, p. 10292Gushikem, Y., (2001) Colloids Surf. A, 178, p. 135Melo, L.F.C., Jardim, I., (1999) J. Chromatogr. A, 845, p. 423Jenkins, R., (1999) X-ray Fluorescence Spectrometry (2nd Edn), , Wiley: New YorkSkoog, D.A., West, D.M., Holler, F.J., (2001) Fundamentals of Analytical Chemistry (7th Edn), , Saunders College Publishing: Philadelphia, PAhttp://web.ccr.jussieu.fr/cim2/activites/sax/Yesa.pdf15, Accessed April 2005http://srs.dl.ac.uk/SXR/technique/NEXAFS/, Accessed 15 April 2005(2005), http://www-ssrl.slac.stanford.edu/mes/xafs/xas_intro.html, Accessed 15 April 2005Haro-Poniatowski, E., Rodrigues-Talavero, R., Heredia, M.C., Cano-Corona, O., Arroyo-Murillo, R., (1994) J. Mater. Res., 9, pp. 21 028Chee, Y.H., Cooney, R.P., Howe, R.F., Van Der Heide, P.A.W., (1992) J. Raman Spectrosc., 23, p. 161Corriu, R.J.P., Leclercq, D., (1996) Angew.Chem. Int. Ed. Engl., 35, pp. 14 206Hench, L.L., West, J.K., (1990) Chem. Rev., 90, p. 33Liu, Z., Tabora, J., Davis, R.J., (1994) J. Catal, 149, p. 117Almeida, R.M., Christensen, E.E., (1997) J. Sol-gel Sci. Technol., 8, p. 409Miller, J.B., Mathers, L.J., Ko, E.I., (1995) J. Mater. Chem., 5, p. 17590http://www.lnls.br28, Accessed August 2004Baccan, N., Andrade, J.C., Godinho, O.E.S., Barone, J.S., (1985) Química Analítica Quantitativa Elementar (2nd Edn), , Editora da UNICAMP: CampinasZhuravlev, L.T., (2000) Colloids Surf. A, 173, p. 1Ruiz-López, M.F., Muñoz-Páez, A., (1991) J. Phys.: Condens. Matter, 3, pp. 89 81
Ray Collins and Jason
No full textRay Collins, class of 1965, and his son, Jason, attend an alumni event
[Affidavit in Any Fact - Statement by Bonnie Ray Williams, November 23, 1963 #1]
No full textTranscription of a statement by Bonnie Ray Williams in which she describes hearing gunshots above her while she was working on the fifth floor of the School Depository Building
[Affidavit in Any Fact - Statement by Bonnie Ray Williams, November 23, 1963 #2]
No full textTranscription of a statement by Bonnie Ray Williams in which she describes hearing gunshots above her while she was working on the fifth floor of the School Depository Building
X-Ray Scattering Studies of Charge and Orbital Ordering in Transition Metal Oxides
No full textThis thesis focusses on the phenomena of charge ordering and orbital ordering in transition metal oxides, using the technique of resonant x-ray diffraction (RXD). The technique is suited to such studies, as it provides an elemental and band specific probe of long range electronic correlations. Here, we present hard and soft x-ray diffraction results on iron and manganese compounds, and demonstrate the utility of resonant x-ray diffraction in revealing their electronic properties.
By performing comprehensive hard x-ray RXD studies on the complex charge ordered structures of magnetite and iron oxyborate, we demonstrate that both systems possess non-integer charge order by using the FDMNES simulation code. We find certain reflections have anisotropic polarisation dependencies, due entirely to the crystal structure, with no need to invoke orbital order to explain the observations. In both materials we demonstrate that the anomalous scattering components can result in a surprising conversion from linearly to non-linearly polarised light, through two subtly different interference processes. This is the first report of such mechanisms.
By performing soft x-ray scattering on Pr(SrCa)MnO, we have provided the first direct observation of the orbital rotation within this compound. We have found that there is no apparent change in the orbital occupation during the stripe rotation, but an increase in the charge disproportionation upon cooling. We have used soft x-ray RXD on lutetium ferrate to discover an anisotropic contribution to the scattering at the charge order wavevector. This is not apparent when probing the crystal structure directly using hard x-rays. We attribute such a signal to charge-orbital order within the system, in contrast to previous claims that the system is an orbital glass
[Letter from Alex Bradford to Lieutenant and Mrs. Ray Starner - November 4, 1940]
No full textLetter from Alex Bradford to Lieutenant and Mrs. Ray Starner describing the the current state of affairs that the author was experiencing, including: the London blitz, the moral of the troops on the ground, and the collective company of men opposing the Nazi regime
X-ray absorption and x-ray fluorescence for the characterization of titanium oxide-modified HPLC silicas
No full textTitanium oxide grafted on to the surfaces of chromatographic silica was investigated by x-ray fluorescence (XRF) and x-ray absorption (XAS) spectroscopy and the latter used before and after the extensive use of this material as a support for reversed-phase high-performance liquid chromatography (RP-HPLC). XRF indicated the formation of a complete 2: 1 monolayer whereas XAS suggested the presence of more than one titanium oxide structure. These structures show some slight modification after immobilization of PMOS and use in HPLC. Copyright (c) 2005 John Wiley & Sons, Ltd.35210110
X-ray diffraction images related to PDB ID 5EMA
No full textX-ray diffraction Images collected at the Australian Synchrotron.http://www.synchrotron.org.au
X-ray diffraction images related to PDB ID 5ELQ
No full textX-ray diffraction Images collected at the Australian Synchrotron.http://www.synchrotron.org.au
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