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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 28 for “"UPD"”.
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FUNCTIONAL ANALYSIS OF THE UPSTREAM PSEUDOKNOT DOMAIN AND ITS SUBSTITUTION WITH A POLY(A) TRACT IN TOBACCO MOSAIC VIRUS (TMV)
THE UPSTREAM PSEUDOKNOT DOMAIN (UPD) OF TOBACCO MOSAIC VIRUS (TMV) GENOME PLAYS AN IMPORTANT ROLE DURING VIRUS REPLICATION AND TRANSLATION. THE FUNCTIONS OF UPD WERE ANALYZED USING A SUBSTITUTED MUTANT TMV-43A IN WHICH AN INTRODUCED 43 NT POLY(A) TRACT REPLACED THE UPD IN TMV GENOME. TMV-43A …
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In Situ Structural Study of Underpotential Deposition and Electrocatalysis on Gold(111) Electrodes
… of Bi, Pb, Ag, and Hg underpotential deposition (UPD) on Au(111) electrodes. The application of the atomic force microscope (AFM), the scanning tunneling microscope (STM), and the surface x-ray scattering (SXS) to these UPD studies has provided in situ measurements from which we investigate …
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Copper Electrodeposition on Iridium, Ruthenium and Its Conductive Oxide Substrate
… between the stripping bulk peak and stripping UPD peak in various concentration of CuSO4 on iridium, ruthenium and its conductive oxide are shown, which yields thermodynamic data on relative difference of bonding strength between Cu-Ru/Ir atoms and Cu-Cu atoms. The monolayer of UPD on ruthenium …
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Structure and Evolution of Intermetallic and Metallic Overlayers Onfcc(111) Metal Surfaces
Finally, the underpotential deposition (UPD) of cadmium onto Au(111) in aqueous solution was studied with STM and cyclic voltammetry. This system resulted in three linear overlayer structures which do not directly reflect the substrate symmetry. This result is in direct contrast to the majority of …
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Consequences of mitotic loss of heterozygosity on genomic imprinting in mouse embryonic stem cells
… is disrupted in cells with uniparental disomy (UPD), which is an unequal parental contribution to the genome. I have derived mouse embryonic stem (ES) cell sub-lines with maternal UPD (mUPD) for mouse chromosome 6 (MMU6) to characterize regulation and maintenance of imprinted gene expression. …
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Study of Ruthenium and Ruthenium Oxide's Electrochemical Properties and Application as a Copper Diffusion Barrier
… barrier. Cu under potential deposition (UPD) on the RuOx formed electrochemically was first observed. Strong binding interaction, manifesting by the observed Cu UPD process, exists between Cu and Ru as well as its conductive ruthenium oxide. Since UPD can be conformally formed on the …
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Stability, structure, and barrier properties of self-assembled films on metal supports
… discusses the use of underpotential deposition (upd) of silver and copper on gold to affect the structure and stability of an adsorbed n-alkanethiolate SAM. Thiols adsorb onto gold surfaces modified by submonolayer quantities of silver or copper and form SAMs with macroscopic properties similar …
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Correlation of Structure and Electrochemical Reactivity at Underpotentially Deposited Modified Gold(111) Surfaces
… catalyzed by Pb underpotential deposition (upd) on Au(111) revealed that SCN- decreases the catalytic peroxide reduction activity. The decrease in reactivity due to SCN- exhibited Langmuir behavior. STM studies reveal that islands of two different heights emerge following addition of SCN-. …
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Desarrollo y caracterización de sistemas bimetálicos con propiedades catalíticas para el tratamiento electroquímico de efluentes contaminantes
… y Pd por deposición espontánea, a subpotencial (UPD) y a sobrepotencial (OPD) sobre monocristales de Au(hkl), con (hkl) = (111) y (100). Estos sistemas pueden considerarse como modelos para los catalizadores soportados. Los procesos de deposición espontánea y a subpotencial de Sn ocurren con …
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Usability Problem Description and the Evaluator Effect in Usability Testing
… the content of usability problem descriptions (UPDs) to more fully measure evaluation effectiveness. The goals of this research were to develop UPD guidelines, explore the evaluator effect in UT, and evaluate the usefulness of the guidelines for grading UPD content. Ten guidelines for writing …
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Enhanced structural characterisation of supported catalysts
… for structural fitting and (ii) by using a Cu UPD layer to cap the surface of the nanoparticles, thereby reducing the effects of termination of the metallic structure on the EXAFS. The latter study also enabled the Cu UPD structure on nanoparticles to be compared to that obtained on single …
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Study of Copper Electrodeposition on Ruthenium Oxide Surfaces and Bimetallic Corrosion of Copper/Ruthenium in Gallic Acid Solution
… stripping peaks and underpotential deposition (UPD) waves in cyclic voltammetry (CV), efficiency of Cu deposition dropped off indicating that interfacial binding strength between Cu and Ru oxides was weakened when the Ru surface was covered with irreversible oxide and native oxide. Also, Cu UPD …
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Molecular and Cellular Investigations of Prader-Willi Syndrome
… by chromosome 15 maternal uniparental disomy (UPD) (20-30%) or imprinting center defects (1-3%). Here, we used dental pulp stem cells (DPSC), differentiated to neuronal cultures, to investigate the molecular and cellular phenotypes of PWS neurons. DPSC are multipotent stem cells that accurately …
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Coadsorption of anions and ultra-thin metal films on single crystal electrodes
… structures of anions/underpotential deposition (UPD) admetals were characterized in different electrodes and electrolytes. For the first time, it was shown that core-level electron energy loss spectra (CEELS) from adsorbed atomic and ionic adsorbates were electrode potential dependent.
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The mechanism of Parkin activation by PINK1 phosphorylation
… domain binds to the Unique Parkin domain (UPD) of the Parkin core and thereby displaces the catalytic RING2 domain from its autoinhibitory position. Catalytic intermediates, such as the E2-bound state or the Ub-charged Parkin species shift the equilibrium in favour of the active conformer. …
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Interfacial Study of Copper Electrodeposition with the Electrochemical Quartz Crystal Microbalance (EQCM)
… of copper underpotential deposition (UPD) on ruthenium and RuO2 electrodes by means of electrochemical methods and other spectroscopic methods is presented. Copper electrodeposition in platinum and ruthenium substrates is investigated at pH values higher than zero. In pH=5 solutions, …
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Genetic and gene expression analysis of nasopharyngeal carcinoma (NPC)
… change and loci that exhibit uniparental disomy (UPD). The relationship between chromosomal copy number and level of gene expression were analysed. This revealed that the direct copy number/expression link applies in about 60% of the instances of copy number loss/down-expression and less than 35% …
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Electrochemical Thin Film Growth Assisted by Pb Monolayer
… PhD work, electrochemical and electroless Pb UPD phenomena were investigated as a critical step in development of more sophisticated approaches to manipulate growth kinetics during electrochemical/electroless growth of thin films. An electroless atomic layer deposition (eALD) method has been …
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Jak-stat pathway in the control of mycobacterial infections
… interleukin-like signals to activate signalling (upd, upd2, upd3).<br/>I show that, in Drosophila, the STAT-activating cytokine Upd3 is harmful to the host upon mycobacterial infection. Flies lacking upd3, or in which the JAk/STAT pathway is inhibited in phagocytes, show improved survival, …
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The Hippo Signaling Pathway in Organ Size Control and Regeneraton
… non-cell-autonomous mechanisms. Cytokines of the Upd family and multiple EGFR ligands were found to be ectopically induced when Hpo signaling is inactivated in differentiated cells, which in turn activate Jak-Stat and EGFR signaling pathways in ISCs to stimulate their proliferation. I also showed …
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