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 17 of 17 for “"EMPA"”.
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Impacts of Empagliflozin (EMPA) Treatment on Skeletal Muscle Microvasculature in Type 1 Diabetic Rats
… whether a blood glucose lowering drug, empagliflozin (EMPA), has any impact on the microvasculature in SM. T1D was induced in eight-week-old male rats using streptozotocin (65 mg/kg, n=21). Twenty-one rats were given daily insulin and 11 of 21 rats also consumed EMPA (30 mg/kg/day) for …
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Mantle conditions and kimberlite geochemical criteria controlling diamond survival in Kimberlites
… microscopy, SEM, electron probe microanalysis (EMPA), XRF, XRD and 57Fe Mössbauer spectroscopy. The results of petrography and geochemical studies of peridotite, eclogite and kimberlite rocks during this project have revealed that the sampled kimberlite diamond deposits have experienced several …
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Major and trace element characteristics of biotite and chlorite as proxies for gold ore mineralization
… imaging, electron micro probe analysis (EMPA) and laser ablation inductively coupled plasma mass spectrometer (LA-ICP-MS). Hyperspectral imaging and thin section microscopy were used for mineral identification and mineral grain sampling. EMPA and LA-ICP-MS data found weak correlation with …
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Environmental Accounting of Marine Protected Area "Isole Ciclopi" by means of Emergy analysis
… and Nature Reserves).In particular, the aim of EMPA project is the assessment of the ecological and economic value for the Italian marine reserves, elaborated in order to answer ministerial applications. The main purpose of this project is to detect and evaluate both biophysical and economic …
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The Cause of Anisotropy in Symmetrically Cubic Almandine and Spessartine Garnet
… question include electron microprobe analysis (EMPA) and synchrotron high-resolution powder X-ray diffraction (HRPXRD). The composition and general formula of each sample was obtained from EMPA analyses. The almandine from Tanzania is Alm56Prp23Sps9Grs7, …
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Halogen-element (F, Cl, and Br) behaviour in apatites, scapolite, and sodalite : an experimental investigation with field applications
… microprobe (XRF) for Br and electron microprobe (EMPA) for other elements. All selected localities and environments are interesting, because the origins of the parental fluids/melts are controversial. The halogen compositions of 29 natural apatite grains from the Aoshan fluorapatite-magnetite …
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Crustal contamination recorded by zoned plagioclase in primitive Karoo flood basalts, Luenha River, Mozambique
… kuvantamiseen, elektronimikroanalysaattoria (EMPA) pää-alkuaine pitoisuuksien määrittämiseen (ytimestä reunoille) ja multikollektorilla varustetulla laserablaatioon perustuvalla induktiivisesti kytketyllä plasmamassaspektrometrillä mitattiin in situ (87Sr/86Sr)i suhteet. …
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INTEGRATED AND MULTI-SCALE CHARACTERISATION OF GEM MATERIALS LACKING LONG-RANGE ORDER. THE CASE STUDIES OF CHRYSOCOLLA AND ANDEAN BLUE OPAL
… analysis in wavelength-dispersive mode (EMPA-WDS) (using a multivariate analysis approach (PCA) for in-depth investigation of chemical data). The experimental protocol was structured as a progressive workflow across different scales of investigation, from macroscopic observations to …
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Development of novel micaceous glass ceramics for dental applications using CAD/CAM Systems
… viability. Optical/SEM micrographs and EDS/EMPA data sets are also presented. Progress in the colouring of these glass-ceramics with the aim of matching natural dental shades is encouraging and work includes colour-space data for the first time. Ultimately, the final goal is the production …
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Assessment of Arsenic Mobility Using Sequential Extraction and Microscopic Methods
… (SEM) and electron microprobe analysis (EMPA) show the presence of three arsenic bearing minerals, arsenopyrite, scorodite and arsenic-rich iron oxides, in both sediment and the host rock. In sediment, the minerals are present as individual grains, but in the host rock, they are present …
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Insights Into Determinants That Contribute to Colonization, Virulence and Antibiotic Resistance In Enterococci
… highlighted the relevance of the tip subunit, EmpA, in pilus biogenesis and pilus-associated functions. Due to the rising clinical importance of <em>E. faecium</em> and the fact that enterococcal infections are commonly preceded by intestinal colonization, the second part of this dissertation …
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An experimental and theoretical approach to correct for the scattered radiation in an X-ray computer tomography system for industrial applications
… correction algorithm which could be patented by Empa. The results showed that the cupping effect in the corrected image is strongly reduced. The developed CT simulation is a powerful tool to optimize the design of the CT system and to evaluate the contribution of the scattered radiation to the …
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Reconstruction of aspects of Northern New Zealand paleoclimate over the last 200 ka using laminated Auckland maar lake sequences
… by high-resolution μ- XRF elemental scanning, FE-EMPA-based elemental mapping (resolution: down to 1 μm) and RADIUS analysis has allowed reconstruction of: (i) shifts in trophic state of the lake; (ii) water salinity (marine influence, windiness); (iii) phases of thermal-stratification; (iv) water …
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Servant Leadership and Mental Health Among Leaders and Followers: Empirical Investigations on Antecedents, Processes and Outcomes.
… employee in turn has a prototypical idea of an empa-thetic leader (sensitivity), this strengthens the connection between servant leader-ship and mental health via basic need satisfaction. In summary, this thesis could contribute the following findings: First, further antecedents of servant …
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Geochemical studies of earth materials
… were studied by electron microprobe analysis (EMPA), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Raman spectrometry in conjunction with microprobe analysis was found to resolve the valence of vanadium in the phases of these slags. Gasifier slag …
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Mafic magmatism in the Eastern Cordillera and Putumayo Basin, Colombia : causes and consequences
… of this extension. Electron microprobe analyses (EMPA) of the major elements and synchrotron radiation micro-X-ray fluorescence (μ-SRXRF) analyses of the trace element composition of the early crystallized minerals of the intrusions (clinopyroxenes and amphiboles) reflect the same dual character …
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THORIUM SPECIATION IN SYNTHETIC ANHYDRITE, PLACER ILMENITE CONCENTRATE, AND TITANIA SLAG: IMPLICATIONS FOR THORIUM GEOCHEMICAL BEHAVIOR, SEQUESTRATION, AND BENEFICIATION
Understanding thorium speciation and distribution in ore minerals and related materials is of critical importance so that the thorium fuel cycle can be sourced as byproducts from metallurgical processes. The objective of this dissertation is to study thorium-bearing species in selected ore minerals …