Geography Commons^™

Space-Time Modelling Of Emerging Infectious Diseases: Assessing Leptospirosis Risk In Sri Lanka, Cameron C F Plouffe

Theses and Dissertations (Comprehensive)

In this research, models were developed to analyze leptospirosis incidence in Sri Lanka and its relation to rainfall. Before any leptospirosis risk models were developed, rainfall data were evaluated from an agro-ecological monitoring network for producing maps of total monthly rainfall in Sri Lanka. Four spatial interpolation techniques were compared: inverse distance weighting, thin-plate splines, ordinary kriging, and Bayesian kriging. Error metrics were used to validate interpolations against independent data. Satellite data were used to assess the spatial pattern of rainfall. Results indicated that Bayesian kriging and splines performed best in low and high rainfall, respectively. Rainfall maps generated from …

Japanese Encephalitis: Assessing Disease Risk Due To Landscape Factors At Multiple Scales, Julia E. Metelka

Theses and Dissertations (Comprehensive)

Japanese Encephalitis is a mosquito-borne disease and is the leading cause of viral encephalitis in Asia. In many Asian countries, the geographical distribution of JE is dependent on a variety of human-environment interactions that can be conceptualized as a complex social-ecological system. The JE transmission cycle is influenced by a few primary human-landscape factors; the abundance and the spatial configuration of rice paddy fields (which provide habitat for the vector), the distribution of pig farms (which position the virus' amplifying host), and the location of a susceptible human population. Our models integrate population dynamics, landscape characteristics, and weather variables that …

The Feasibility, Practicality And Uses Of Detecting Crop Water Stress In Southern Ontario Apple Orchards With A Uas, Thomas S. Tiidus Mr.

Theses and Dissertations (Comprehensive)

UAS (Unmanned Aerial Systems) are becoming more common place in agricultural sites around the world. While the accuracy of achieving NDVI (Normalized Difference Vegetation Index) from a UAS is well understood, few studies have attempted to acquire other plant health attributes such as CWSI (Crop Water Stress Index), particularly in horticulture such as apple orchards. In addition, no academic studies up to the time of this writing have explored the perceived usefulness of data obtained from a UAS for the average farmer. This study explored the practicality and feasibility of using UAS for apple orchards in Southern Ontario. This study …

Debt Financed Migration To Consumption Smoothing: Tracing The Link Between Migration And Food Security In Bangladesh, Mohammad Moniruzzaman

Theses and Dissertations (Comprehensive)

This dissertation is primarily focused on migration and food security linkages, more specifically the impact of migrants’ remittances on household food security, and the role of debt in financing migration. Using a multi-methods approach the dissertation focuses on the household level, but also sheds light on the related policy landscape linked to these resource issues. The dissertation consists of seven chapters, with four research finding chapters that are each self-contained and interdisciplinary. Each of these four chapters adds conceptually and empirically to the existing literature on migration and development.

Chapters one and two provide the introduction and literature review. Chapter …

Acculturation And Post-Immigration Changes In Obesity, Physical Activity, And Nutrition: Comparing Hispanics And Asians In The Waterloo Region, Ontario, Canada., Michele Vitale Mr., Sean Doherty

Theses and Dissertations (Comprehensive)

OBJECTIVES: The acculturation hypothesis speculates that as new immigrants get exposed to more obesogenic environments, they progressively acquire the unhealthy lifestyles of the host society, and their obesity risk gradually increases since time of arrival. However, the consistency of the presumed acculturation effect across immigrant groups and gender, and the reasons behind individual changes in lifestyle behaviors remain unclear. Thus, this study investigated the acculturation hypothesis in the Canadian context by comparing two foreign groups, Hispanics and East/Southeast Asians, which present contrasting post-settlement obesity patterns and behavioral trends.

Methods: A 41-item questionnaire (including open-ended questions) was administered with 100 first-generation …

Model Lessons For Math And Geography Activities, Karen Adams, Tyler Sexton, Shawnti Peachey

Instructional Materials

Model Lessons for Math and Geography Activities to use with The Student Atlas of Oregon.