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 Country: Mexico
 Country: United States
 Collection: UNT Theses and Dissertations
American Artillery in the Mexican War 1846-1847
This thesis presents a history of the United States' war with Mexico with a focus on the maturing of the United States artillery on the battlefields of Mexico.
American Export Trade with Mexico
The purpose of the study is to make a survey and analysis of the export trade of the United States with Mexico. Attention is given to the kinds and types of goods exported to Mexico and imported from it, to the value of the trade, to some ways of carrying it on, and to aspects of Mexican life that influence trade relations.
Biodiversity of Dragonflies and Damselflies (Odonata) of the South-Central Nearctic and Adjacent Neotropical Biotic Provinces
The south-central United States serves as an important biogeographical link and dispersal corridor between Nearctic and Neotropical elements of western hemisphere odonate faunas. Its species are reasonably well known because of substantial collections, but there has been no concerted effort to document the extent of biodiversity and possible geographic affinities of dragonflies and damselflies of this region. The recent discoveries of Argia leonorae Garrison, Gomphus gonzalezi Dunkle and Erpetogomphus heterodon Garrison from southern and western Texas and northern Mexico suggest that Odonata species remain to be discovered in this area, particularly from far south Texas and northern Mexico. I have documented a total of 12,515 records of Odonata found in 408 counties within the south-central U.S. A total of 73 species of damselflies and 160 species of dragonflies was revealed in the region. The 233 (197 in Texas) Odonata species are distributed among 10 families and 66 genera. Illustrated family, generic, and species-level keys are provided. Since the beginning of this work in the Fall of 1993, one species has been added each to the Louisiana and Oklahoma faunas, and 12 species have been added, previously unreported from Texas, including four new to the U.S. The area of highest Odonata biodiversity overall (161 spp.) is in the Austroriparian biotic province. The greatest degree of faunal similarity between the south-central U.S. and other intra-continental regions was observed for the eastern (64%) United States. Diversity is a function of area, and as expected, the numbers of breeding birds and Odonata, in each contiguous U.S. state are positively correlated (r=0.376, n=33, p=0.031). There is, however, no strong correlation between land area and species diversity within the region, but those natural biotic provinces (Austroriparian, Texan, Balconian) where aquatic systems and topographic heterogeneity are the greatest provide a broader spectrum of potential Odonata habitats and thus support a greater number of Odonata species.
Cultural Differences in Pain Experience and Behavior among Mexican, Mexican American and Anglo American Headache Pain Sufferers
Review of previous research on cultural differences in pain experience and/or pain behavior revealed that cultural affiliation affects pain perception and response. Unfortunately, the many inconsistent findings in the literature on cultural differences in pain experience and behavior have made interpretations and comparisons of results problematic. These inconsistent findings could be attributed to variations in acculturation level among cultural groups. The purpose of this study was to investigate cultural differences in pain experience (assessed by McGill Pain Questionnaire, the Box Scale, the Headache Pain Drawing, and the Headache Questionnaire) and pain behavior (measured by determining medication use and interference of daily functioning due to headaches) among Mexican (n = 43), Mexican American (n = 36), and Anglo American (n = 50) female chronic headache pain sufferers. The contribution of acculturation to differences in pain experience and behavior among cultural groups was measured by the Acculturation Rating Scale for Mexican Americans. The three cultural groups of women significantly differed on pain experience and pain behavior. Specifically, Mexican women experienced their headache pain more intensely, severely, and emotionally than Mexican American and Anglo American women. Furthermore, Mexican women were more willing to verbally express their pain than the other two groups. As for pain behavior, Mexican women took more medication and reported more severe inhibition of daily activities due to headaches than Mexican American and Anglo American women. Ethnic identity, ethnic pride, and language preference were factors in the acculturation process which contributed the most to women's chronic pain experience and behavior. The greatest variability occurred within the Mexican American group of women who perceived themselves as being more Mexican in attitudes and/or behaviors, but more similar to Anglo American in their pain experience and pain behavior. Results are explained using biocultural multidimensional pain theory, social learning theory, and acculturation theory.
Distribution of a Novel Gram Negative, Capsule-Forming Bacterium
A novel Gram negative, capsule-forming bacterium was previously isolated in Dr. G. Roland Vela's laboratory. The distribution of this bacterium in soils from various locations was investigated. Soil samples from 188 locations around the world were examined. Isolates of the bacterium were obtained from 50 of these soils, with 48 of the isolates found in soils from the southwestern United States and northern Mexico. This suggests that this region is the natural habitat of the bacterium. The other two isolates were obtained from Madrid, Spain and Taipei, Taiwan. None were found in soils from South America or Australia. A lack of variation in morphology and physiological properties in the isolates suggests that a homogeneous population exists, even from widespread geographical locations.
Expropriation of American Oil Interests and its Effect on United States-Mexican Relations since 1938
This thesis discusses the seizure of all foreign owned oil property by the Mexican government in 1938 and the historical events leading up to the seizure.
The History of the Mexican Contract Labor Program, 1942-1966
This thesis examines the history of the Mexican contract labor program from the World War II program in 1942 to the post-bracero era in 1964-66.
The Relationship Between Environmental Barriers and Modes of Technology Transfer: A Study of United States Companies with Operations in Mexico
This study is an empirical evaluation of the relationship between perceptions of the elements of the remote environment of business and the mode of transfer utilized by 90 United States companies transferring technology to Mexico. Characteristics of the technology, the company, and the industry were found, from a thorough search of the literature, to be the key aspects of technology transfer. The primary hypothesis predicted that a significant relationship would exist between perceptions of barriers and choice of transfer mode.
Some Significant Differences between American Education and that of Mexico
This thesis compares the educational systems of the United States and of Mexico from their beginnings, and especially notes the progress that Mexico has made since 1920.
The South and the Mexican War
This thesis examines newspapers and correspondence of public men in the era of the Mexican war to provide some answers to pertinent questions regarding the South's role in the Mexican War. It attempts to reveal to some degree whether Southerners uniformly supported the war, whether their support arose from an expansionist sentiment or a desire to extend the area of slavery, whether any strong opposition to the war existed in the South, and why they supported or opposed it.