Social and Behavioral Sciences Commons^™

Cell Towers As Urban Sensors: Understanding The Strengths And Limitations Of Mobile Phone Location Data, Ziliang Zhao

Doctoral Dissertations

Understanding urban dynamics and human mobility patterns not only benefits a wide range of real-world applications (e.g., business site selection, public transit planning), but also helps address many urgent issues caused by the rapid urbanization processes (e.g., population explosion, congestion, pollution). In the past few years, given the pervasive usage of mobile devices, call detail records collected by mobile network operators has been widely used in urban dynamics and human mobility studies. However, the derived knowledge might be strongly biased due to the uneven distribution of people’s phone communication activities in space and time.

This dissertation research applies different analytical …

Mobility And Activity Space: Understanding Human Dynamics From Mobile Phone Location Data, Yang Xu

Doctoral Dissertations

Studying human mobility patterns and people’s use of space has been a major focus in geographic research for ages. Recent advancements of location-aware technologies have produced large collections of individual tracking datasets. Mobile phone location data, as one of the many emerging data sources, provide new opportunities to understand how people move around at a relatively low cost and unprecedented scale. However, the increasing data volume, issue of data sparsity, and lack of supplementary information introduce additional challenges when such data are used for human behavioral research. Effective analytical methods are needed to meet the challenges to gain an improved …

New Wenzhou: Migration, Metropolitan Spatial Development And Modernity In A Third-Tier Chinese Model City, Sainan Lin

Doctoral Dissertations

Migration has asserted great influence on urban spatial structure, especially during China’s recent waves of rural-to-urban migration. This dissertation focuses on Wenzhou, a third-tier Chinese city that served as a national model for the re-introduction of small-scale private enterprise in the 1990s. Wenzhou’s economic success generated migration that has served as a catalyst for new forms of urbanization in which migrants play a central role. I aim to examine and understand the distribution patterns of migrant settlements, their changes over time and the ways that the formation of these settlements has impacted emerging urban form. There are two primary components …

Contested Notions Of Irishness: Social Integration And The Multiple Intersections Of Ethno-Racial, Religious, And National Identities In Dublin, Ireland, Neil Conner

Doctoral Dissertations

This dissertation evaluates the contested notions of identity (e.g. ethno-racial, religious, and national) and the growing tensions between native-born Irish citizens and recently arrived immigrants living in the Republic of Ireland. Examining these political and cultural intersections broadens our geographic understandings by contributing to larger geographic literatures consisting of: the geographies of inclusion and exclusion; collective identity construction; sense of belonging; community – both real and imagined; small-scale human territoriality; (social) integration; religiosity; and, of course, notions of Irishness. Despite the significance of these geographic issues in contemporary society, there exists a considerable lacuna within the discipline of Geography as …

Linking Soil Moisture And Carbon-Cycle Processes In Two Understudied Terrestrial Ecosystems: Ecuadorian Páramo Grasslands And Constructed Agricultural Wetlands, Julie Yvette Mcknight

Doctoral Dissertations

A better understanding of soil-water interactions and associated feedbacks in carbon-cycle processes is necessary for addressing knowledge gaps in the global carbon budget. This doctoral dissertation research investigated soil carbon-cycle processes in two ecosystems, Ecuadorian páramos and constructed agricultural wetlands, which are understudied in terrestrial carbon research. These sites represent ecosystems where land-use induced changes in soil moisture were expected to play an important role in soil carbon processes.

Soil carbon dioxide (CO₂) flux and extracellular enzyme (EE) activities were measured to assess changes in soil carbon processes in soil from four types of land use in Ecuadorian …

Data Fusion Methods For Improved Demographic Resolution Of Population Distribution Datasets, Amy Nicole Rose

Doctoral Dissertations

Despite the availability of multiple global population distribution datasets, these datasets are limited by their lack of demographic depth. Although large area spatial datasets of population distributions currently exist, similar spatial representations of other demographic and socioeconomic characteristics are scarce. Spatial microdata that include detailed demographic information are rarely available for small areas, thus limiting the complex analysis of population subgroups. To address the lack of demographic resolution in existing population distribution datasets, a first step would be to develop large area microdata that can be attached to a country- or global-level population distribution dataset. This can be achieved by …

Materiality And Location: A Geographic Study Of Log Home Manufacturing, James S. Peters

Doctoral Dissertations

The dissertation presents a material-geographic analysis of the materiality of log home manufacturing and may be the first quantitative application of ‘new materiality’ concepts. It tests the thesis that log home attributes reveal a manufacturer’s geographic region and building culture. A study of human-environment interaction, the research investigated the organization of log home manufacturing in the Eastern Woodlands of North America and illustrates relationships between manufacturers, their perspectives on forest resources and their choices of log conversion (i.e., processing) methods. Data were obtained from secondary sources and by surveying managers of log home manufacturing firms. Methods included hierarchical cluster analysis, …