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 49 for “"phenotypic characteristics"”.
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Study of the Phenotypic Characteristics and Genetic Risk Factors of Primary Sclerosing Cholangitis
… collect clinical data and DNA samples, to study phenotypic characteristics and the role of genetic risk factors in PSC. To date, more than 2,000 patients have been recruited from UK hospitals, making it the largest independent PSC cohort worldwide. I studied the phenotypic characteristics of the …
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Comparative genotypic and phenotypic characteristics of human associated extraintestinal Escherichia coli isolated from cats and dogs
… Some differences in gene carriage by strains and phenotypic differences could be explained as host adaptations. The findings from this study support the hypothesis that transmission of ExPEC strains occurs between humans, chicken meat and cats, but also provides evidence of host specificity. Thus, …
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Comparative genotypic and phenotypic characteristics of human associated extraintestinal Escherichia coli isolated from cats and dogs
… Some differences in gene carriage by strains and phenotypic differences could be explained as host adaptations. The findings from this study support the hypothesis that transmission of ExPEC strains occurs between humans, chicken meat and cats, but also provides evidence of host specificity. Thus, …
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Effect of nutritional status on phenotypic characteristics of Arabidopsis and alfalfa in relation to the expression of AtSnRK2.9
The mechanisms of plant response to nutrient limitation and utilisation are of great interest for agricultural purposes. Phosphate is a non-renewable resource and is one of the most important nutrients required for plant growth. Recently a new family of plant protein kinases, composed of 10 …
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The innate immune response to Mycobacterium tuberculosis is dependent on strain lineage and on host population
… that clonal lineages may exhibit particular phenotypic characteristics, which may, in turn, result in differences in virulence or influence their association with particular host populations. Indeed, the global distribution of M. tuberculosis strains is not uniform and certain strain lineages …
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The microaerophilic nature of <i>Wolinella recta, Wolinella curva, Bacteroides ureolyticus</i>, and <i>Bacteroides gracilis</i>
… resulting groups may not be easily definable by phenotypic characteristics. This is exemplified by the genus <i>Campylobacter</i>, which consists of at least three separate groups that cannot be differentiated readily by phenotypic characteristics. Examination of the type strains of all …
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A hedonic model on bred heifer prices: auction, heifer, genetic, and reputation effects considered
… buyer of their cattle, and what qualities and characteristics should their product contain to attract multiple buyers? The paper uses hedonic modeling to estimate marginal implicit values of characteristics of bred heifer sales to determine qualities and characteristics buyers demand. The sales …
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Characterisation of HIV-1 Envelope features of breakthrough infections from the CAPRISA 004 Microbicide Trial
… sequences from the same time-point. To evaluate phenotypic characteristics of env, inhibition assays were performed using the following inhibitors: tenofovir, maraviroc, T20, PSC-RANTES and anti-CD4 antibody clone SK3. In addition, envs for 19 participants were cloned and used to generate …
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The Developmental and Genetic Basis of Differences in Cave and Surface-dwelling Forms of the Crustacean, Asellus aquaticus
… adapted to subterranean environments often share phenotypic characteristics such as the reduction or complete absence of eyes, reduced pigmentation, and enhanced sensory systems. In order to understand the evolution of these morphological changes, we selected an invertebrate model system the …
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IMMORTALIZING THE SPIRIT OF THE COLONIZER
… biologically and culturally superior. European phenotypic characteristics and cultural production has been established as the benchmark for humanity, and has thus imposed itself as the universal paradigm, with disastrous effects."
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Phenotypic diversity of indigenous rhizobia nodulating different morphotypes of Vachellia karroo
… Therefore, the isolation and determination of phenotypic characteristics of indigenous rhizobia nodulating V. karroo is of paramount in improving symbiotic effectiveness and thus enhance nitrogen fixation. Four different morphotypes of V. karroo obtained from four areas of South Africa with …
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A taxonomic study of the genus Campylobacter
… by DNA homology experiments and characterized phenotypically. These strains formed eleven (11) distinct DNA homology groups (species) corresponding to C. fetus, C. "hyointestinalis", C. jejuni, C. coli, C. laridis, C. nitrofigilis, C. sputorum, C. mucosalis, C. concisus, and two unnamed groups …
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Predicting Mutational Pathways of Influenza A H1N1 Virus using Q-learning
… the basis to guide population genetics and other phenotypic characteristics when describing the evolution of the influenza genome. Phylogenetic trees are one form of representing the evolutionary trends of sequenced genomes, but that do not capture the multidimensional complexity of mutational …
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Proinflammatory cytokines as mediators of phenotypic change in bacteria implicated in ventilator-associated pneumonia
… cytokines may modify clinically important phenotypic characteristics of bacteria implicated in VAP. This work provides a foundation for further development and application of models of increasing complexity to better understand HMI in these infections.
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Derivation and Comparison of Androgenic and Gynogenic Monoploid Potato Families
… = 24) Solanum phureja clones and compare their phenotypic characteristics in a greenhouse study. A haploid-inducing pollinator, S. phureja IVP101, was crossed to two selections of S. phureja (PP5 and BARD1-3). A total of 185 fruit was obtained from PP5 and 398 from BARD1-3, resulting from 85% …
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Implicit And Explicit Racial Attitudes: Moderation Of Racial Typicality Evaluations
… images representing more typical Afrocentric phenotypic characteristics result in more negative evaluations, whether assessed by explicit or implicit attitudes measures. However, the factors that define and moderate the perception of racial typicality have not been sufficiently explored. The …
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Streptococcus equi subsp. zooepidemicus in New Zealand horses
… population through strain-associated genomic and phenotypic characteristics. Retrospectively, S. zooepidemicus is the second most frequently isolated bacterium in New Zealand horses, being mainly associated with respiratory and urogenital tract infections. However, it also has the ability to …
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Mouse cortical cholinergic neurons: Ontogeny of phenotypes in vivo and in vitro.
… and little is known about their development or phenotypic characteristics. The present study found no ChAT-positive neurons in mouse frontal cortex on postnatal day 0 (P0, the day of birth). On P7 there were few, faintly stained, ChAT-positive neurons. The numerical density of ChAT-positive …
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Modulation of TGFβ1-induced Fibroblast-to-Myofibroblast Transition in response to Prostaglandin E2 Production by Human Rhinovirus-Infected Airway Epithelial Cells
… phenomenon whereby fibroblasts develop phenotypic characteristics of myofibroblasts. This increase in myofibroblasts leads to the excessive deposition of extracellular matrix proteins, leading to the thickening of the airway walls. Transforming growth factor beta-1 (TGFβ1) is highly …
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The effect of prenatal androgen exposure on sexual differentiation and postnatal growth in beef cattle
… cows received no treatment. At parturition, the phenotypic characteristics of each calf were recorded, including birth weight, ano-genital distance and the appearance of the external genitalia. Calves were weighed every 28 days, and the effects of sex and age on body weight were determined. Blood …
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