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 12 of 12 for “"Mexico and Central America"”.
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Species Sadness: Race, Gender, And Animality In Twentieth-Century Mexico And Central America
… been disregarded as irrelevant to Mexicanist and Central Americanist scholarship on race, sexuality, gender, and politics, this project argues that thinking through the animal was a key method through which twentieth-century writers revised what ought to be considered “natural” and normative. …
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A 2007 aircraft-based study of plumes from biomass burning origin from Mexico and Central America advected over south Texas and the western Gulf of Mexico.
Biomass burning is the burning of living and dead vegetation which includes grasslands, forests, and agricultural lands (Levin, 1998). It is a global phenomenon and serves a multitude of purposes such as clearing of forests and brushland for agricultural use; control of weeds; production of …
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Phylogeny and color pattern evolution in a New World bumble bee (Hymenoptera: Apidae: Bombus: Pyrobombus) species complex
Bombus ephippiatus is one of the most common and widespread bumble bee species throughout Mexico and Central America. This robust and charismatic species possesses a highly variable color pattern throughout its wide distribution across montane and lowland regions, which raises the question of …
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Beyond Access to Education: Using Collaborative Learning to Promote Agency in Unauthorized Latinos Entering Community College
… 70,000 unaccompanied child migrants arrived from Central America in 2014, unauthorized immigration became a full-blown humanitarian crisis. Unauthorized immigrants, 71% of whom come from Mexico and Central America, make up an increasingly significant portion of the population. This is particularly …
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A systematic study of indehiscent-fruited yuccas in the Chihuahuan Desert
… New World distribution, occurring in the U.S., Mexico, and Central America. Because of the great size of many members of the genus, and because of previous inaccessibility of much of their ranges until fairly recently, little has been done to evaluate the variability within the group. With the …
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A Systematic Revision of Bakeridesia Hochr. (Malvaceae)
Bakeridesia is a neotropical genus of tall shrubs and small trees, with a center of diversity in the endangered seasonally dry tropical forests of Mexico and Central America. The genus traditionally included two subgenera, one that was primarily Mesoamerican (subg. Bakeridesia) and one that was …
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Vegetable Production Concentration in Northwest Mexico
<p>An American company that supplies premium quality hybrid vegetable seed to commercial growers in the southern part of the US, Mexico, and Central America sought an assessment of the market potential in the Northwest region of Mexico by identifying land area and production concentrations of …
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Drivers of Liking and Effects of Corn Hybrics on Quality of Corn Tortilla
Corn tortilla, an ancient staple food of Mexico and Central America, is still the base food in those countries and has also become more popular in other countries with high Hispanic population. However, mechanization of corn tortilla production has modified the original sensory attributes to new …
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Molecular Phylogenetics and Historical Biogeography of the Tribe Chiococceae (Rubiaceae)
… exhibiting an astonishing variation in shapes and sizes of corolla, and kinds of fruits and seeds. They are primarily distributed in the Neotropics but also occur in the West Pacific islands; thus exhibiting amphi-Pacific tropical disjunction. This study addresses the phylogenetic relationships …
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Somatic embryogenesis in southern and tropical pine species: Loblolly pine (Pinus taeda), Longleaf pine (P. palustris) and Oocarpa pine (P. oocarpa)
… the current project was to establish an improved and reliable protocol for somatic embryogenesis in 1) Pinus taeda and Pinus palustris; pine species of high value for commercial applications and germplasm conservation supported through breeding programs at The Virginia Department of Forestry …
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Ruptured Journeys, Ruptured Lives: Central American Migration, Transnational Violence, and Hope in Southern Mexico
This dissertation examines the processes by which Central American women and men face unprecedented forms of violence and exploitation as they migrate through Mexico. Central Americans are regularly subject to abuse, extortion, rape, kidnapping, dismemberment and death as multiple actors profit off …
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Hiding in plain sight: unveiling cryptic diversity and patterns in bumble bees
… more than three centuries. The distributions and the vibrant color patterns of nearly all species of bumble bees are well mapped and described. In addition, the natural history, colony structure and social behavior of bumble bees are well documented and a well-supported phylogeny of the ~250 …