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1Optical parameters induced by phase transformation in RF magnetron sputtered TiO_2 nanostructured thin films显示文摘Pure TiO2 thin films were deposited onto quartz substrates using a ceramic TiO2 target at an elevated substrate temperature of 573 K by RF magnetron sputtering, and an analysis of structural, optical and photoluminescence characteristics of the films upon phase transformation is reported in this paper. Structural investigations using X-ray diffraction revealed that the as-deposited film was amorphous in nature. Thermal annealing for 2 h at 873 K in air resulted in the formation of anatase phase, and a phase transformation to rutile was observed at 1073 K.An increase in grain size and an improvement in crystallinity were also observed on annealing. Rod- like rutile crystallites were observed in the SEM images of the film annealed at 1273 K. As-deposited films and films annealed up to 1073 K were highly transparent in the visible region with a transparency 480%. Optical band gap of the films decreased upon thermal annealing which is attributed to phase transformation from amorphous to anatase and then to rutile. Optical parameters such as refractive index, optical conductivity and optical dielectric constant increased with increase in annealing temperature. Since rutile is the optically active phase, the superior refractive index of the film annealed at 1073 K along with its high transparency in visible region suggests the application of this film in antireflective coatings. Photoluminescence emission of maximum intensity was observed for the film annealed at 873 K, which exhibits anatase phase. Intense blue emission observed in this film makes it suitable for use in optoelectronic display devices.Prabitha B.Nair V.B.Justinvictor Georgi P.Daniel K.Joy K.C.James Raju David Devraj Kumar P.V.Thomas 2014Progress in Natural Science:Materials International2014,24,3:1
2Effect of RF power and sputtering pressure on the structural and optical properties of TiO 2 thin films prepared by RF magnetron sputtering显示文摘Prabitha B. Nair V.B. Justinvictor Georgi P. Daniel K. Joy V. Ramakrishnan P.V. Thomas 2011Applied Surface Science2011,,24:1
3Effects of annealing temperature on the structural and photoluminescence properties of nanocrystalline ZrO 2 thin films prepared by sol–gel route显示文摘K. Joy I. John Berlin Prabitha B. Nair J.S. Lakshmi Georgi P. Daniel P.V. Thomas 2011Journal of Physics and Chemistry of Solids2011,,6:1
4Clinical outcome measures in dementia with Lewy bodies trials: critique and recommendations显示文摘The selection of appropriate outcome measures is fundamental to the design of any successful clinical trial. Although dementia with Lewy bodies (DLB) is one of the most common neurodegenerative conditions, assessment of therapeutic benefit in clinical trials often relies on tools developed for other conditions, such as Alzheimer’s or Parkinson’s disease. These may not be sufficiently valid or sensitive to treatment changes in DLB, decreasing their utility. In this review, we discuss the limitations and strengths of selected available tools used to measure DLB-associated outcomes in clinical trials and highlight the potential roles for more specific objective measures. We emphasize that the existing outcome measures require validation in the DLB population and that DLB-specific outcomes need to be developed. Finally, we highlight how the selection of outcome measures may vary between symptomatic and disease-modifying therapy trials.Federico Rodriguez-Porcel Kathryn A.Wyman-Chick Carla Abdelnour Ruiz Jon B.Toledo Daniel Ferreira Prabitha Urwyler Rimona S.Weil Joseph Kane Andrea Pilotto Arvid Rongve Bradley Boeve John-Paul Taylor Ian McKeith Dag Aarsland Simon J.G.Lewis the Lewy Body Dementias Clinical Trials Workgroup from the Lewy Body Dementias Professional Interest Area-Alzheimer’s Association International Society to Advance Alzheimer’s Research and Treatment(ISTAART) 2022Translational Neurodegeneration2022,11,1:0
5Correction:Clinical outcome measures in dementia with Lewy bodies trials:critique and recommendations显示文摘Correction to:Translational Neurodegeneration(2022)11:24 http://gffzzd3cc09b8251d45dfs0p0wp5w9fkff6quq.ffgz.tsg.suse.edu.cn/10.1186/s40035-022-00299-w Following publication of the original article[1],the authors identified some errors in the Additional files 1-5.The original article[1]has been corrected.Federico Rodriguez-Porcel Kathryn A.Wyman-Chick Carla Abdelnour Ruiz Jon B.Toledo Daniel Ferreira Prabitha Urwyler Rimona S.Weil Joseph Kane Andrea Pilotto Arvid Rongve Bradley Boeve John-Paul Taylor Ian McKeith Dag Aarsland Simon J.G.Lewis the Lewy Body Dementias Clinical Trials Workgroup from the Lewy Body Dementias Professional Interest Area-Alzheimer’s Association International Society to Advance Alzheimer’s Research and Treatment(ISTAART) 2022Translational Neurodegeneration2022,11,1:0
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