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 88 for “"POM"”.
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[Ru-POM] Photo-electrocatalysis
… in multiple redox states can be coupled to the POM in order to extend the absorbance crosssection of the resulting complex into the visible region. In this thesis, remediation of organic solvent, such as benzyl alcohol and toluene, and a number of key processes that influence the overall output …
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Compositional heterogeneity within oceanic POM : a study using flow cytometry and mass spectrometry
… the study of marine particulate organic matter (POM) collected from the North Atlantic. DT-MS is an important asset to marine organic geochemistry as a single two minute analysis (with 16 eV, EI+ ionization) provides information on polysaccharides, proteins, and lipids within concentrated and …
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Compositional heterogeneity within oceanic POM : a study using flow cytometry and mass spectrometry
Thesis (Ph. D.)--Joint Program in Oceanography, Massachusetts Institute of Technology/Woods Hole Oceanographic Institution, 1998.
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Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems
… of Hg reactions with particulate organic matter (POM), an important reservoir of NOM found within soils, sediments, and suspended in aqueous systems. Moreover, the chemistry of NOM changes when irradiated by sunlight, altering the composition and distribution of functional groups available for …
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The role of shredders in detrital dynamics of permanent and temporary streams
… and production of particulate organic matter (POM) was evaluated in three permanent and three temporary southern Appalachian headwater streams. Shredder population dynamics were compared to several stream detrital parameters: CPOM breakdown rates, POM concentrations, average POM particle sizes, …
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Quantifying soil particulate organic matter using image analysis
… support tools. The particulate organic matter (POM) fraction of SOC is of interest due to its sensitivity to management and significant contributions to soil structure and biological integrity. Conventional laboratory methods for assessing POM include size and density fractionation, processes …
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Stable isotope geochemistry of nitrogen in marine particulates
… the fate of particulate organic matter (POM) during its residence in the water column and after deposition on the seafloor. The processes focused on were water-column transformations and sedimentary diagenesis. Sampling sites were chosen to provide POM subject to different specific …
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New Approaches to the Synthesis of Porous and/or High Surface Area Transition Metal Oxides
… a new approach for the grafting of Keggin POMs around the core-crosslinked PB-P2VP worm-like polymer templates (A 1 and 2). The produced POM-1 exhibits high dispersion, improved surface area and is thus expected to be useful in catalytic, electrochemical and biotechnology related …
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The Role of Branching Topology on Rheological Properties and its Effect on Film-Casting Performance
… of the molecular based constitutive model, the pom-pom model; for these flows, and evaluation of the same PE resins in film-casting. As we progress towards molecular systems with defined molecular structural characteristics, we transition from a linear low density polyethylene, LLDPE, based …
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The Role of Floods in Particulate Organic Matter Dynamics of a Southern Appalachian River/Floodplain Ecosystem
… role of a flood in particulate organic matter (POM) dynamics of the Little Tennessee river/floodplain ecosystem in western North Carolina, USA. I measured litter inputs, leaf breakdown, floodplain litter, and aboveground herbaceous net primary production at 12 sites. Annual litter inputs …
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Studies of Conjugated Small Molecules, Polymers and Organic-Inorganic Hybrid Materials for Photovoltaic Applications
… types of materials, namely polyoxometalate (POM)-containing organic-inorganic hybrids, near-IR absorbing conjugated polymers and discotic polycyclic aromatic hydrocarbons. POM-containing organic-inorganic hybrids are interesting because of the potential roles, such as electron acceptors and …
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Neuropathological role of alpha-synuclein: major contribution of inflammation in the evolution of both motor and non-motor symptoms of Parkinson’s disease
… testing the immunomodulatory imide drug (IMiD) Pomalidomide (Pom) for its disease-modifying properties against motor deficits in a translational rat model of PD based on the intranigral infusion of toxic oligomers of human α-synuclein (H-αSynOs) (study I). Moreover, we investigated the …
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"Marie Manje La Pom Nan." Examining the Cognitive Process of Restructuring and Advantage Selection in the Definite Article System in Haitian Creole Among U.S. Born Heritage Speakers of Haitian Creole
<p>The distributional patterns of heritage speakers’ reanalyzed first language are often grammatically divergent from native speakers. Irrespective of the heritage language, there is converging evidence that the cognitive process of reanalysis of heritage languages is often evident in less salient …
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Determining the Trophic Role of Red Snapper (Lutjanus campechanus) in Mississippi State Waters Using Stomach Content and Stable Isotope Analysis
… decisions. Particulate organic matter (POM), the presumed base of the food web, red snapper muscle tissue, and red snapper stomach contents were collected from 25 sites in 2016 and 2017 for stable isotope analysis. POM δ<sup>13</sup>C values showed high variability for both years, with …
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Synthesis, non-linear optical and electrochemical properties of novel organoimido polyoxometalate derivatives
… optics (NLO): organoimido polyoxometalates (POMs). It presents the first experimental measurements of 2nd order NLO (frequency doubling) coefficients (β) (by hyper-Rayleigh scattering, HRS) and the first spectroelectrochemical measurements on such species. Towards the aim of producing …
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Plant organic matter mobilization and export in fluvial systems
… and transport of plant organic matter (pOM) through rivers towards sedimentation basins. I investigated this aspect in the eastern Nepalese Arun Valley. The trans-Himalayan Arun River is characterized by a strong elevation gradient (205 − 8848 m asl) that is accompanied by strong changes …
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Synthesis, morphologies and applications of polyoxometalate-containing diblock copolymers
… or micro sized architectures. Polyoxometalates (POM), on the other hand, being an interesting class of metal-oxygen nanometer-sized anionic clusters, are regarded highly due to their excellent electron accepting capability. Combining POM clusters with diblock copolymers can lead to a fascinating …
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Characterization Of Neuronal Groups Regulating Sexual And Agonistic Behavior In Male Chicken (Gallus Gallus)
… courtship behavior. The medial preoptic nucleus (POM) and lateral septum (SL) were associated with both sexual and agonistic behaviors. The bed nucleus of the pallial commissure (NCPa) and the paraventricular nucleus (PVN) were closely related to stress. Second, Fos-ir neurons were phenotyped by …
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Distribution, Abundance, and Trophic Ecology of Anguilliform Leptocephali in the Northern Gulf of Mexico
… zooplankton, and particulate organic matter (POM) samples were collected during the SEAMAP Fall Plankton Survey in 2016 and analyzed for stable isotopes. Variability in the isotope values of leptocephali was driven by variability in baseline POM isotope values. Diet composition analyses …
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