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 20 of 4229 for “"Heterogeneity."”.
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Heterogeneity in hyperkinetic disorder
… is a heterogeneous condition and that this heterogeneity is seen across all levels of analysis from the genetic and environmental causes to the associated neuropsychological deficits, the clinical presentation and response to treatment. This work investigated whether the more restrictive and …
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Heterogeneity in residential neighborhoods
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of City and Regional Planning, 1964.
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Labor market performance and heterogeneity
Thesis (Ph. D.)--University of Rochester. Department of Economics, 2004.
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Essays in Macroeconomics with Heterogeneity
… consists of two essays on macroeconomics with heterogeneity. First essay quantifies the importance of aggregate fluctuations in microeconomic uncertainty for the firm dynamics over the business cycle in an economy with frictional financial markets. To begin, it documents facts on asymmetric …
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Benthic mineralization and microscale heterogeneity
… awareness of the naturally occurring microscale heterogeneity affecting the biogeochemical functioning. Studies on microscale dynamics have been facilitated by recent developments of high resolution sensors for 2-dimensional chemical imaging. The presented<br/>work has contributed to this …
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Disentangling neural heterogeneity in autism
… diagnosis. However, given the multiscale heterogeneity characterizing autism, different subsets of individuals with autism may display different patterns of functional connectivity atypicalities and E:I imbalance. This thesis sets out to explore how neural atypicalities in connectivity and …
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Market Heterogeneity and Drug Innovation
… non-size characteristics of markets or "market heterogeneity" (e.g., compositional structure, R&D riskiness) together with aggregate market size can influence the introduction rate of new drugs and associated outputs. My empirical approach exploits a panel dataset constructed from publicly …
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Firm heterogeneity in international trade
… building block of these trade models: firm-level heterogeneity. The first and second chapter of the thesis focus on the characterization of firm-level heterogeneity in international trade models. In the first chapter, we reduce the (modeled) information necessary when characterizing firm-level …
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Heterogeneity in Climate-Related Migration
As the effects of climate change become more prominent, people look for ways to adapt in order to limit damages. It's likely that different people will vary in their capability to adapt to climate change. Focusing on one form of adaptation, migration, I look at differences in migration rates …
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Determinants of perceived group heterogeneity
The determinants of perceived variability among members of a group were examined. Based on the assumption that one's knowledge about a group involves two components, (a) group-level knowledge and (b) exemplar knowledge, a model of perceived group variability was developed. The model postulated …
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Metabolic heterogeneity in microbial populations
No two living cells are exactly the same. Even cells from a clonal population with identical genomes living in the same environment will express proteins in different numbers simply due to the random nature of the chemistry involved in gene expression. The consequences of this stochastic gene …
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Heterogeneity modeling and longitudinal clustering
… types of methods and theory to accommodate heterogeneity modeling in various personalization applications for longitudinal data. In the first application, we propose a personalized drug dosage recommendation scheme. Specifically, we model patients' heterogeneity using subject-specific random …
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Essays in Macroeconomics and Heterogeneity
… first two chapters focus on the effects of firm heterogeneity and firm dynamics on macroeconomic outcomes, particularly how the transmission of macroeconomic shocks is impacted by strategic behaviour and the distribution of financially constrained firms. The last two chapters address the topic of …
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Identifying Heterogeneity in Decision-Making
… we present algorithmic methods to identify heterogeneity in decision-making, by characterizing the regions of disagreement where variation can be attributed largely to the decision-maker. These methods range from approximate methods to exact solutions. We provide generalization bounds where …
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Intra-tumor heterogeneity and evolution
… I will explore two questions related to cancer heterogeneity and evolution: how evolution can affect plastic phenotypes, and the role of purifying selection in cancer evolution. Different cell states or phenotypes have been observed within tumors, and they are associated with treatment …
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Student Learning Heterogeneity in School Mathematics
… phenomenon. How student learning heterogeneity (LH) - learning differences manifested when children's understanding is later assessed - is understood varies by OTL interpretation. In this study, I argue that the cognitive underpinning of learning disability, learning difficulty, …
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Fibroblast Heterogeneity In Pancreatic Cancer Immunity
… largely failed in the clinic likely due to the heterogeneity of CAFs in the TME. Therefore, our groups and others have worked to unravel the heterogeneity of CAFs in PDAC. In the works presented herein, we seek to identify the functions of two commonly studied CAF subsets defined by expression …
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Dissecting Tumor Heterogeneity In Lung Cancer
… establish an experimental model to capture tumor heterogeneity. We developed an Ex Vivo Tumor system that preserved tumor composition and allowed the introduction of specific modifications in the tumor microenvironment to investigate their role in tumor progression. We utilized this system to …
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Predictive Learning with Heterogeneity in Populations
… methods in real-world applications is the heterogeneity in populations of data instances, i.e., different groups (or populations) of data instances show different nature of predictive relationships. For example, different populations of human subjects may show different risks for a disease …
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Dealing with Semantic Heterogeneity in Classifications
Many projects have dealt with mappings between classifications both in computer science and digital library communities. The adopted solutions range from fully manual to fully automatic approaches. Manual approaches are very precise, but automation becomes unavoidable when classifications contain …
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