Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1765 for “"PD"”.
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Electron microscopy characterisation of size-selected Pd clusters and industrial Pd catalysts
… investigation into the morphology of palladium (Pd) size selected clusters and industrial Pd catalysts using high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) technique. The driving force of this work is to establish reliable and efficient methods for the …
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T-cell Dysfunction by HCV Core Protein Involves PD-1/PD-L1 Signaling.
… of a negative co-stimulatory pathway mediated by PD-1 and PDL-1 is associated with persistent viral infection. The role, if any, that PD-1/PDL-1 has in HCV infection is unknown. In this study we report that PD-1 is upregulated in T-cells from persons with chronic HCV infection when compared to …
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Deformation Mechanisms in Pd Nanowhiskers
… configuration to test defect-free and -scarce Pd nanowhiskers, we have been able to systematically investigate some of the important deformation mechanisms in nanoscale single crystals. We first address the elastic behavior in nanoscale crystals, which is predicted to differ from bulk behavior …
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Solid state diffusion in Pd₂Si
The atomic transport processes ocurring in the Pd/Si system have been investigated. The Pd₂Si system has been studied to try and establish the mechanism(s) of diffusion by which the growth of Pd₂Si proceeds under thermal annealing. Using a deposited Ti marker, the dominant moving species during …
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Investigation into hardness changes of Pd 11.1 at.% Cu and Pd 11.1 at .% Nb after heat treatments
Two alloys, Pd 11.1 at.% Cu and Pd 11.1 at.% Nb, predicted to form the A8B ordered structure, were investigated. Prior deformation with systematic heat treatments was used to promote ordering, hardness tests were used to detect changes in the microstructure, which might result from ordering. The …
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PD-1 AND PD-1 LIGAND REGULATION OF NATURAL ANTIBODY SPECIFICITIES AND THE ADAPTIVE RESPONSE TO PNEUMOCOCCAL POLYSACCHARIDES
… the past three decades. Programmed cell death-1 (PD-1) is a surface-expressed receptor of the B7/CD28 superfamily and the subject of considerable study since its discovery in 1992 [1]. The available literature lacks an in-depth understanding of the role of PD-1 and PD-1 ligands (PD-L) in B cell …
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A Treatise of PD-LGD Correlation Modelling
… on the fact that the probability of default (PD) and LGD correlations are not captured in the proposed formula for estimating economic capital. To help quantify economic downturn LGD, the Basel Committee proposed establishing a functional relationship between long-run and downturn LGD. To the …
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Új, vízoldható Pd-katalizátorok alkalmazása Sonogashira-kapcsolásban
… és terminális acetilének kapcsolását. A [Pd(BuHSS)] komplexet anioncserélő gyantára rögzítettem és aktivitását fenilacetilén és jódbenzol reakciójában vizsgáltam.
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Deuterium Phase Behavior in Thin Film Pd
… absorption of deuterium from the gas phase into Pd thin films was measured at room temperature with in situ neutron reflectometry. Room temperature solubility isothermal curves, out-of-plane film expansion, and deuterium depth profiles were determined from fits to the neutron reflectivity data. …
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Electrochemical H insertion in Pd thin films
… gas separation, and electrocatalysis. The Pd-H system is used as a model for metal-hydrogen systems and the effect H insertion has on their properties. A study was conducted to assess the performance of various electrochemical cell formats in electrochemically inserting H into Pd, which is …
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Novel Imaging-Based Techniques Reveal A Role For Pd-1/Pd-L1 In Tumor Immune Surveillance In The Lung
… immune inhibitory receptor Programmed Death 1 (PD-1) on T cells to its ligand PD-L1 has been implicated as a major contributor to tumor induced immune suppression. Clinical trials of PD-L1 blockade have proven effective in unleashing therapeutic anti-tumor immune responses in a subset of …
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Adatom Diffusion and Interactions: Pd on W(110)
… the observed linear-to-island transformation of Pd clusters and from the measured interaction energies of Pd pairs. In this, three-atom interaction energies corresponding to two different configurations, linear and triangle, have been obtained for the first time. It has been found that the …
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Measurements of Unit Cell Parameters of Three Pd-Complexes
No abstract prepared.
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The Role of the PD-1 Immunoreceptor in Pregnancy
… We propose that the CD28 family immune receptor, PD-1, functions during pregnancy to control maternal immune reactions. PD-1 is expressed on T lymphocytes and following interaction with its ligand, B7-H1, prevents T cell activation. B7-H1 is expressed in the human placenta throughout gestation, …
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Catalytic activation of Rh,Pd nanoclusters supported on Ceria
Rh,Pd/CeO2 nanocatalysts exhibit excellent activity and stability for ethanol steam reforming (ESR) at 400°C. This thesis encompasses experimental and computational investigations of this nanocatalyst. The activation mechanism of Rh,Pd/CeO2 nanocatalysts under ethanol steam reforming conditions is …
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Resistivity in Thinfilm PD/H and NB/H Systems
… No. of bitstreams: 3 Onumah_Henrietta_E_E_MS.pdf: 10771234 bytes, checksum: 1916231d8bf13c8b5f88e264f85bce36 (MD5) Onumah_Henrietta_E_E_MS_ABS.pdf: 165855 bytes, checksum: 01c8bb6f4723d3a09e3647db24a6f533 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous …
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