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 20 of 111 for “"small population"”.
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Small population face recognition for a kiosk interface
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Demographic and Genetic Consequences of Small Population Size in Remnant Populations of Arabis georgiana Harper (Georgia Rockcress)
… of the demographic and genetic consequences of small population size in remnant populations of Arabis georgiana Harper (Georgia Rockcress). Specifically, 1 ) traits associated with phenological progression, fitness and reproductive success were compared between naturally occurring "native" …
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The Genetic Consequences of Fragmentation and Small Population Size in Two Grassland Bird Species: The Greater Rhea and the Greater Prairie Chicken
"In addition, genetic analysis of four extant populations of the greater prairie chicken and museum specimens from a prebottlenecked population along with ecological data on population fitness allowed me to directly assess the effects of a demographic bottleneck on the genetic diversity and fitness …
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Evolutionary Computation and Experimental Design
… operation experiments. A range of new hybrid small population genetic algorithms are created that contain evolutionary operation in all generations (static hybrids) or contain evolutionary operation in a controlled number of generations (dynamic hybrids). A large number of empirical tests are …
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The use of the internet as a bibliotherapeutic tool for parents with children with disabilities or special needs : an exploratory study
… and special needs. This research used a small population of parents with children with diverse disabilities and investigated their Internet usage for information, their use of support groups and the triggers that made them seek information.
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Ecological and biogeographical studies on the rocky shore seagrass Thalassodendron ciliatum (Forsskal) den Hartog and its seaweed epiphytes at the southern limit of its distribution in the western Indian Ocean by Catherine Margot Browne.
… its associated macroalgal epiphytes. Seagrass populations were sampled at Jesser Point (Sodwana Bay) and at Maphelane, the former being larger and the southernmost populations observed, and the latter being the site of an isolated small population further south.
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Public Enterprise and Economic Development: The Case of Ande in Paraguay (Hydroelectric Power, Inter-American Development Bank, Itaipu Dam)
… and expanded the transmission system to serve small population centers around the country. With the Brazilian state-owned power company Eletrobras, ANDE is currently constructing the world's largest hydroelectric facility, Itaipu. Investment in this project alone will exceed $15 billion.
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Indigenous re-form: Change and adaptation in a new school in new Xade, Botswana
… Botswana. Because of the few developments and small population in the area, it might be perceived as a place with little to offer architecturally. I am interested in uncovering the contextual layers (landscape and cultures) in this area that could inform and improve the architecture there. The …
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Experimental test of the effects of supportive breeding on wild populations
… being used in the management of threatened populations, but the effects of this management strategy remain relatively untested. The common house fly, Musca domestica, was used as a model to assess the relative effectiveness of supportive breeding strategies for endangered species management. …
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Distribution and population genetics of Northern saw-whet owls in the Southern Appalachians
… found, primarily above 1067 m. I studied the population dynamics of A. acadicus in the Southern Appalachians to determine a subspecies was present. Samples from Pennsylvania, New York, Tennessee and North Carolina were obtained; cytochrome b and NADH dehydrogenase subunit 2 were sequenced and …
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Seasonal gonadal changes in two bivalve mollusks in Tomales Bay, California
… America and common in Tomales Bay, California. A small population of the European oyster, Ostrea edulis Linnaeus (1758), is being raised experimentally at the Tomales Bay Oyster Company. The histological study of the seasonal gonadal changes of these two species, in Tomales Bay, is described …
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Reproductive ecology of the island scrub-jay (Aphelocoma insularis)
The small population size and limited range of the Island Scrub-Jay make it a species of conservation concern, yet its reproductive ecology is poorly known. From 2008 - 2010 I investigated factors influencing nest success, quantified annual fecundity per pair, and documented breeding behavior. Nest …
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Afro-Latino Language Attitudes and Identity in the United States and Latin America
… The participants in this study represent only a small population of Afro-Latinos from diverse socioeconomic and educational backgrounds. The interviews included in this project are an authentic reflection of Afro-Latinos living in and outside of the United States. These first-hand experiences …
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The Prince or the Depauperate? Population Genetics of the Rare, Closed-flower Erica occulta
… Plain, South Africa. Its restricted range and small population make it a vulnerable species and determining its breeding system and genetic diversity may inform the best method of conservation. The aims of this study were to determine the genetic diversity of E. occulta and how it varies with …
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Habitat Use and Spatial Ecology of Blanding's Turtle, Emydoidea Blandingii, on Squaw Creek National Wildlife Refuge, Mound City, Missouri
… adult turtles and no juveniles, suggesting a small population size. I radio-tracked eight turtles (4 males, 4 females) during 2001-2003, including four individuals tracked in successive seasons. Mean movement rates were higher for males (mean = 107 m/d) than females (mean = 58 m/d). Home range …
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Assessment of the Criteria Used to Evaluate the Effectiveness of Different Types of Alternative Education Programs in Georgia
… programs within the state of Georgia. The population surveyed included alternative program principals for the year 2005-2006, from a list provided by the Georgia Department of Education. A survey instrument was constructed based on a synthesis of the existing literature on alternative …
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Structural and functional aspects of sperm after transit through the fallopian tube of the sheep
… state of hyperactivation occurred in a small population of spermatozoa after transit through the Fallopian tube. A morphologically normal sperm is a direct product of spermatogenesis and epididymal maturation. No gross morphological alterations have been reported to occur to sperm within …
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Optimization and Supervised Machine Learning Methods for Inverse Design of Cellular Mechanical Metamaterials
… expense of the genetic algorithm (GA) with a small population size and a conditionally reduced parameter space. Globally, the algorithm employs a new search strategy to avoid local convergence induced by the small population size and the complexity of the parameter space. What's more, inspired …
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Genetic Structure and Demographic Analysis of Key deer (Odocoileus virginianus clavium)
… study), homogeneous, and have a female-biased population of approximately 900 deer. I used 985bp of the mitochondrial cytochrome b gene and 12 microsatellite loci to test two hypotheses: 1) if the Moser Channel is a barrier to gene flow, I should expect that Key deer are differentiated and have …
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Population Genetics and Host Specificity of a Rare Parasitic Plant, Cuscuta harperi
… is a rare parasitic plant endemic to a small number of widely disjunct populations in Georgia and Alabama. It is a habitat-specialist, occurring on sandstone and granite outcrops within its limited range; it is also exhibits a high level of host specificity, parasitizing only a few …
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