Indiana University-Purdue University Indianapolis (IUPUI) / Heat is one of the most important factors in our atmosphere for precipitation (thunderstorm) formation. Thermal energy from local urban land-cover is also a common source of heat in the lower atmosphere. This phenomenon is known as the urban heat island effect (UHI) and is identified as a substantial cause to a changing climate in surface weather modification. The proceeding study investigates this connection between the UHI and surface weather using remote sensing platforms A ten-year analysis of the Indianapolis UHI and thunderstorms were studied from the summer months of May, June, July, August and September (MJJAS) from 2002 until 2011. LANDSAT space borne satellite technology and land-surface based weather radar technology was used in this analysis for thunderstorm investigation. Precipitation areas identified from land-based NEXRAD WSR-88D technology were used to identify convection from non-synoptic forcing and non-normal surface diurnal heating scenarios. Only convection appearing from the UHI were studied and analyzed. Results showed twenty-one events over eighteen days with the year 2005 and 2011 having the largest frequency of events. The month of August had the largest concentration with seven events during the late afternoon hours. UHI results showed July had the largest heat island magnitude with April and September having the lowest magnitude in UHI temperatures. Three events of the twenty-one storm paths did not had a significant mean temperature difference in the heat island below the storm reflectivity. The nineteen storm paths that were significant had a warmer area underneath storm path development by an average 6.2°C than surrounding areas. UHI initiation points showed twelve of the twenty-one events having statistically significant differences between 2 km initiation areas and the rest of the study areas. Land-cover results showed low intensity developed areas had the most land-cover type (48%) in the 2km initiation buffer regions.

Indiana University-Purdue University Indianapolis (IUPUI) / In this research, Environmental Fluid Dynamic Code (EFDC) and Adaptive- Networkbased Fuzzy Inference System Models (ANFIS) were developed and implemented to determine the spatial-temporal distribution of cyanobacterial metabolites: 2-MIB and geosmin, in Eagle Creek Reservoir, IN. The research is based on the current need for understanding algae dynamics and developing prediction methods for algal taste and odor release events. In this research the methodology for prediction of 2-MIB and geosmin production was explored. The approach incorporated a combination of numerical and heuristic modeling to show its capabilities in prediction of cyanobacteria metabolites. The reservoir’s variable data measured at monitoring stations and consisting of chemical/physical and biological parameters with the addition of calculated mixing conditions within the reservoir were used to train and validate the models. The Adaptive – Network based Fuzzy Inference System performed satisfactorily in predicting the metabolites, in spite of multiple model constraints. The predictions followed the generally observed trends of algal metabolites during the three seasons over three years (2008-2010). The randomly selected data pairs for geosmin for validation achieved coefficient of determination of 0.78, while 2-MIB validation was not accepted due to large differences between two observations and their model prediction. Although, these ANFIS results were accepted, the further application of the ANFIS model coupled with the numerical models to predict spatio-temporal distribution of metabolites showed serious limitations, due to numerical model calibration errors. The EFDC-ANFIS model over-predicted Pseudanabaena spp. biovolumes for selected stations. The predicted value was 18,386,540 mm3/m3, while observed values were 942,478 mm3/m3. The model simulating Planktothrix agardhii gave negative biovolumes, which were assumed to represent zero values observed at the station. The taste and odor metabolite, geosmin, was under-predicted as the predicted v concentration was 3.43 ng/L in comparison to observed value of 11.35 ng/l. The 2-MIB model did not validate during EFDC to ANFIS model evaluation. The proposed approach and developed methodology could be used for future applications if the limitations are appropriately addressed.

Indiana University-Purdue University Indianapolis (IUPUI) / Following the end of the American Civil War in 1865, thousands of Union veterans joined the Grand Army of the Republic (GAR), the largest Union veterans' fraternal organization in the United States. Upwards of 25,000 Hoosier veterans were members in the Department of Indiana by 1890, including President Benjamin Harrison and General Lew Wallace. This thesis argues that Indiana GAR members met in fraternity to share and construct memories of the Civil War that helped make sense of the past and the present. Indiana GAR members took it upon themselves after the war to act as gatekeepers of Civil War memory in the Hoosier state, publicly arguing that important values they acquired through armed conflict—obedience to authority, duty, selflessness, honor, and love of country—were losing relevance in an increasingly industrialized society that seemingly valued selfishness, materialism, and political radicalism. This thesis explores the creation of Civil War memories and GAR identity, the historical origins of Memorial Day in Indiana, and the Indiana GAR's struggle to incorporate ideals of "patriotic instruction" in public school history classrooms throughout the state.

Indiana University-Purdue University Indianapolis (IUPUI) / A causa de la falta de acceso al español formal y al español escrito, es típico que después de dos generaciones de inmigrantes, los hispanos pierdan su competencia en español. La lectura voluntaria, cuando uno lee porque quiere, es utilizada como método de impedir la pérdida del español como lengua de herencia. El propósito de este estudio es investigar cómo la lectura voluntaria facilita la adquisición y el mantenimiento del español como lengua materna.

Indiana University-Purdue University Indianapolis (IUPUI) / indefinitely