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.
Results
Showing 1 to 11 of 11 for “"non-additive effects"”.
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Mechanisms of action for aryl hydrocarbon receptor ligands in the PLHC-1 cell line
… existence of "spare receptors" in this system. Non-additive effects of low-efficacy ligands call into question the utility of the "toxic equivalency factor" approach currently used for HAH risk assessment.
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Combining ability, protein, heterosis, and prediction of F₁ performance with RFLPs in a diallel of maize
… (GCA) and specific combining ability (SCA) effects were highly significant for all traits indicating presence of both additive and non-additive effects, respectively. Reciprocal effects (REe), often assumed to be absent in maize diallel studies, were significant for grain yield and protein …
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Effects of hurricanes and fires on southeastern savanna-forest landscapes
… large-scale disturbances may produce interacting effects that differ from those predicted for each disturbance in isolation. These non-additive effects can strongly influence the composition and structure of plant communities. Hurricanes and natural lightning-season fires are large-scale, frequent …
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Interactions between titanium dioxide nanoparticle exposure and grazing organisms on periphyton biomass and community composition.
… fish grazing was present, there were significant effects of high concentrations of TiO₂NP on algal and bacterial community composition regardless of grazing pressure. There was a nonadditive effect of treatment and grazing in the streams exposed to both the low (0.05 mg L⁻¹) and high …
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The Effect of Maternal and Fetal Inbreeding on Dystocia, Calf Survival, Days to First Service and Non-Return Performance in U.S. Dairy Cattle
… service, summit milk, conception by 70 days non-return, and calving rate with a linear mixed model (LMM) approach and for calving difficulty, calf mortality with a Bayesian threshold model (BTM) for categorical traits. Effectiveness of classical and unknown parentage group procedures to …
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Genetics of initial imprinting responses: selection, and heterosis
… evidence of heterosis. This demonstration of non-additive effects implies fitness roles for these traits and supports the idea that they indicate imprinting tendencies. Time of day tested, sex, hatch, mating type, developmental age, and 24-hr body we1ght were considered independent variables …
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Common 'Inborn Errors' of Metabolism in the General Population
… the population and characterise their downstream effects on health. To assess the value of untargeted metabolomic profiling for the study of common complex diseases, I identified candidate mediators of the association between weight gain and future type 2 diabetes risk based on untargeted, …
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Kombination von Paclitaxel und Bestrahlung
Paclitaxel wird als antineoplastisches Agenz hauptsächlich gegen Ovarial- und Brusttumore eingesetzt. Seine Wirkung beruht auf einer Störung der mikrotubulären Dynamik und Struktur des Zytoskeletts, die einen Arrest der Zelle in der G2- und Mitosephase des Zellzykluses bewirkt. Da Zellen, die in …
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Estimation of Variation For High-throughput Molecular Biological Experiments With Small Sample Size
… The artificial noise mainly consists of additive and multiplicative effects due to plates and batches. We propose a linear mixed-effect modeling framework based on experimental designs with at least two control samples. These are involved in a normalization and variance estimation …
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Medaka fish as a model for complex trait genetics
… of complex traits, with a particular focus on non-additive genetic effects. My research addresses two phenotypes: one physiological (heart rate) and one behavioural (bold-shy behaviour). After providing an overview of the history of genetics and the current state of the art in Chapter 1, the …
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Constraints on plant resistance and tolerance trade-offs
… a variety of mechanisms to mitigate the negative effects of herbivory. Much of what we have learned, to date, on plant responses to their enemies (herbivores and pathogens) have focused on the evolution of chemical and structural traits that reduce or prevent tissue damage by herbivores …