Browsing Theses & Dissertations by Title
Now showing items 1886-1905 of 4100
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Generation of large-insert metagenomic libraries from subtropical hypersaline microbial mats and their screening for antibiotic resistance
(2012)Most of the microbial diversity in an environment cannot be studied through laboratory standard media culture methods. For this, an emerging science, coined “Metagenomics”, has been developed as an effort to access the ... -
Generators of monomial rotation symmetric Boolean functions and a characterization of monomial dihedral symmetric Boolean functions
(2023-06-28)Rotation symmetric Boolean functions were introduced by Pieprzyk and Qu in 1999. They proved that these functions have efficient and secured cryptographic implementations. In recent years, a subclass of rotation symmetric ... -
Genetic algorithm approach for reorder cycle time determination in multi-stage systems
(2003)The objective of this research is to provide a genetic algorithm to determine the reorder cycle time for multi-stage serial and assembly systems. Demand for end item is assumed to occur at a constant and continuous rate. ... -
Genetic characterization of host-microbiome-pathogen dynamics in ancient Amerindians of Punta Candelero, Puerto Rico
(2020-10-27)This thesis seeks to address the deficit of ancestral human references from the tropics, specifically the Caribbean, by adding genetic (genomic and microbiomic) information from the ancient Puerto Rican Amerindian population ... -
Genetic commonalities of autism spectrum disorder and schizophrenia
(2019-01-23)The characterization of a disease through the detection of differentially expressed genes is of interest for early detection, diagnosis, prognosis, and prediction. Autism Spectrum Disorder (ASD) and Schizophrenia (SCZ) ... -
Genetic differentiation of Eastern And Western Atlantic Octopus vulgaris
(2010)Octopus vulgaris is an important species in cephalopod fisheries and also in understanding population regulation in marine invertebrates. Despite its importance, little is known about its distribution and genetic connectivity ... -
Genetic diversity and differentiation of Cassava (Manihot esculenta Crantz) accessions in Puerto Rico
(2010)Cassava is consumed daily by 600 million people living in the poorest places in Africa, Asia and South America. Natural genetic variation that exists among different cultivars of cassava has been studied in order to ... -
Genetic diversity and population structure of Caribbean marine invertebrates
(2009-12)Natural populations of many marine invertebrates are under pressure by fisheries due to the increasing demand and unit prices leading to overexploitation. I examined the genetic variation of two marine invertebrates: the ... -
Genetic diversity assessment of naturalized cacao (Theobroma cacao L.) in Puerto Rico using single nucleotide polymorphisms
(2014)Cacao (Theobroma cacao L.) is an important tropical perennial crop on which the multimillion dollar chocolate industry is based. Identification of genetically diverse cacao with disease resistance, high productivity and ... -
Genetic diversity of Neckeropsis undulata (Hedw.) Reich populations in old and young forest stands
(2008)Deforestation events are rapidly occurring in tropical countries; consequently forest fragments dominate the landscape. Fragmentation in Puerto Rico has shown to negatively affect bryophyte communities in forest remnants. ... -
Genetic diversity of the shiny Cowbird (Molothrus bonariensis minimus): A mtDNA study on the variability within original and expanded range
(2006)The geographic range of the Shiny Cowbird (Molothrus bonariensis minimus) was limited to northeastern South America until the twentieth century. However, this range has expanded to the Caribbean and more recently to the ... -
Genetic diversity, incidence and occurence of Papaya ringspot virus in Puerto Rico: Influencing disease management and control strategies
(2016)Papaya ringspot virus (PRSV) is the most serious and destructive virus that affects papaya worldwide curtailing its production. PRSV has significant negative effects on the plant’s development, fruit set, fruit morphology ... -
Genetic expression of HSP70, ATP1A1, NTRK1 and PRLR in the skin of slick hair Holstein cows
(2019-12-09)The skin helps to regulate the core temperature of many organisms, including dairy cattle. Skin glands have been observed in dairy cattle with slick hair genotype which appears to improve their capacity to regulate core ... -
Genetic population structure of two species of brittle stars with contrasting life histories
(2010)Echinoderms display a wide array of life histories, which can have a profound effect in the dispersal potential and population structure of species. The brittle stars Ophiocoma echinata and Amphipholis squamata are ... -
Genetic prints of Amerindian female migrations through the Caribbean revealed by control sequences from Dominican haplogroup a mitochondrial DNAs.
(2006)Both historical literature and popular opinion tend to establish that the population of the Dominican Republic descended mainly from Africans and Europeans. Amerindian ancestry was considered negligible due to Taíno ... -
Genetic variability and fine-scale population structure in the threatened species Acropora palmata and Acropora cervicornis around Puerto Rico
(2008)The population genetic structure of the zooxanthellate corals Acropora palmata and A. cervicornis were used as a proxy to understand connectivity between reefs. Sequences of the mitochondrial control region were recovered ... -
Genetic Variation in the African Mitochondrial Haplogroup L3e in Puerto Rico
(2012)This study aims to clarify the uncertainties of the African maternal origin of the Puerto Rico modern population that occurred during the slave trade. Haplogroup L3e was chosen for this study because it combines the ... -
Genome mapping of anthracnose resistance in sorghum germplasm
(2018)Sorghum [Sorghum bicolor (L.) Moench] is the fifth most produced cereal in the world with increasing popularity by its ability to grow on marginal lands with minimal input of water and nutrients. Nevertheless, sorghum ... -
Genshin y su impacto multicultural: Los efectos del posmodernismo en la estética y ambientación de los videojuegos
(2023-12-20)Los videojuegos cuentan innumerables historias, ricas en contenido visual y narrativo. Al igualque un libro o una película, estos nos brindan acceso a diferentes culturas, tradiciones y perspectivas de una manera lúdica. ... -
Geochemistry, U-Pb geochronology, and tectonic significance of the Elk Hill Volcanic Complex and the Pegmatite Belt, central Appalachian Piedmont, Virginia.
(2019-12-11)This thesis reports crystallization ages for the Elk Hill Volcanic Complex (EHVC) and for the Pegmatite Belt (PB) in the central Appalachian Piedmont of Virginia. ID-TIMS U-Pb zircon geochronology yield an intercept age ...