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 185 for “"admixture"”.
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Genetic dating and pattern of admixture in modern human evolution
Genetic variation is shaped by admixture between populations in an evolutionary process. The mixture dynamic between groups of populations results in a mosaic of chromosomal segments inherited from multiple ancestral populations. The distribution of ancestral chromosomal segments and the …
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Ethnic admixture in African American ancestry as reflected in dental patterns
… the African-Native-American-Asian-American admixture has not been as widely acknowledged or studied in the United States; Since shovel shaped incisors occur more frequently among Native Americans and Asians than other populations, and Carabelli's cusps occur in higher frequencies among those …
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Admixture Mapping of Subclinical and Clinical Cardiovascular Disease among African Americans
… the local ancestry at these SNPs by using admixture mapping methods. The first aim (chapter 3) evaluated the association of local European ancestry with common CIMT (cCIMT) among African Americans from the MESA cohort, and we found a genome-wide significant gene region on chromosome 11 in …
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Algorithms for genomics and genetics : compression-accelerated search and admixture analysis
… computational tools for investigating population admixture, a phenomenon of importance in understanding demographic histories of human populations and facilitating association mapping of disease genes. Our recently released ALDER and MixMapper software packages provide fast, sensitive, and robust …
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Interactions of sodium ethacrynate in intravenous admixture with selected cardiovascular and psychotherapeutic agents
… used immediately after reconstitution and that admixtures of parenteral products not be administered wherever possible (1,2). Physicians have also stressed the importance in avoiding multiple drug therapy (3,4). In spite of these suggestions, the practice of multiple drug therapy is …
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An experimental study of high-performance concrete using metakaolin additive and polymer admixture
… of cement by metakaolin and adding polymers admixture together. The optimised mix was identified to be that of 5% added polymers included 80% SBR and 20% PVA, 15% metakaolin replacement for cement, 0.45 W/C ratio, and using limestone aggregate as a coarse aggregates and using moist curing …
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Applying ancestry tracts to human genetics: disentangling admixture history and characterizing gene conversion
… Here I propose new methods for studying admixture demography and inferring non-crossover gene-conversion from admixture tracts. First, I present PAPI (Parental Admixture Proportion Inference), a Bayesian tool for inferring admixture proportions and admixture times from the un-genotyped …
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Genetic admixture of Kruger National Park black rhino (Diceros bicornis minor): conservation implications
Black rhinoceroses (Diceros bicornis) have been extirpated from most of their historic range with the remaining individuals (ca. 5200) living in geographically isolated populations. Management priorities include creating new populations whilst maintaining genetic diversity and promoting gene flow …
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TEACHING OLD CALIPERS NEW TRICKS: USING CRANIOMETRICS FOR ANCESTRY ADMIXTURE ESTIMATION VIA FUZZY MATH
… categories without accounting for the issue of admixture. Advances in data mining and analysis techniques can now be used to help resolve this issue through soft computing, also known as “fuzzy math”. This type of advanced computational math requires specialized knowledge in computer …
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The effect of an admixture upon water loss and water gain in portland cement concrete
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1939
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Admixture compatibility and freeze-thaw resistance of concrete prepared using commercially produced limestone calcined clay cements
Admixture compatibility and fresh, hardened, and durability properties of mortars and concrete prepared using commercially produced limestone calcined clay cements (LC3s) were evaluated during this study. Incompatibility was evaluated for commercially available high range water reducers (HRWRs) and …
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Investigating the genetic diversity, population structure and archaic admixture history in worldwide human populations using high-coverage genomes
… networks to shed light on the structure of the admixture events. Neanderthal segments from all non-African populations appear largely homogeneous after accounting for the recent demographic history of modern human populations, which is consistent with a single admixture event that happened …
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Peroxidative protection of parenteral admixture by d-α-tocopherol and its effect on oxidative status of obese cats
High lipid : low dextrose (HL:LD) parenteral admixture (PA) is high in polyunsaturated fatty acids (PUFA) that are sensitive to peroxidation. This study evaluated the antioxidative effect of vitamin E in both HL:LD PA and in obese cats given HL:LD PA. Natural d-α-tocopherol (Vital E-300) was added …
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Using lithium compounds as an admixture in new concrete and as a post-treatment for existing concrete affected by alkali-silica reaction
… testing the efficacy of lithium nitrate as an admixture. The two test methods used were ASTM C 1260 and ASTM C 1293 and their modifications, and in addition, exposure blocks were cast to simulate field behavior. After an extensive study conducted jointly at the University of Texas, CANMET …
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Performance of No Vibration/No Admixture Masonry Grout Containing High Replacement of Portland Cement with Fly Ash and Ground Granulated Blast Furnace Slag
… grout lifts. Self-consolidating grout with admixtures has been successfully used without segregation in walls of up to 12.67 ft. in height. Investigation of self-consolidating grout mixes without admixtures has potential for sustainability improvement.</p> <p>This thesis reports on the …
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Effect of various water-reducing admixtures on the strength and workability of concrete
… Committee 212 Report, concerning water-reducing admixtures. Therefore, the engineer must turn elsewhere for impartial information on the use of water-reducing admixtures. Once a source of information has "been selected, field tests still must he made to determine the suitability of a particular …
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Genetic inference of deep hominin evolutionary history using the sequentially Markovian coalescent
… are the series of population size changes, admixture events, and adaptations that have occurred over time. Many methods that infer these quantities rely on differences in the distribution of genetic variants between populations, and are thus limited in scope to events more recent than when …
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Ancestry-based Methods for Characterizing the Evolutionary History of Admixed Populations
<p>Admixture occurs when previously isolated populations come together to form a new population with genetic ancestry from those sources. Admixture is ubiquitous across the tree of life, including humans, and is often associated with migration and exposure to new environments and selective …
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