Browsing FAS Theses and Dissertations by Title
Now showing items 2169-2188 of 6136
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Exponentially Faster Submodular Maximization in Practice via Low Adaptivity Algorithms
(2024-03-12)Across machine learning, social network analysis, and algorithms, many fundamental objectives we care to optimize are submodular, such as influence, innovation diffusion, clustering, mutual information, feature selection, ... -
Exponentially More Precise Algorithms for Quantum Simulation of Quantum Chemistry
(2016-06-21)In quantum chemistry, the "electronic structure problem" refers to the process of numerically solving Schrodinger's equation for a given molecular system. These calculations rank among the most CPU-intensive computations ... -
Expression and Role of Cadherins in the Mammalian Visual System
(2013-02-21)The complex circuitry of the visual system contains around one hundred functionally distinct neuronal types that become specified and connect with the appropriate synaptic partners during development. Previous studies have ... -
Extended Intelligence: Awareness-Based Interventions into the Ecology of Autonomous and Intelligent Systems
(2021-07-12)This dissertation represents a multi-layered discourse analysis of the ethics and governance of artificial intelligence that observes the shifting baselines between agent- based and system-based approaches which continue ... -
Extending the Reach of Coevolution-Based Protein Residue-Residue Contact Prediction
(2018-08-17)The three-dimensional conformations of macromolecules are critical to their diverse functions; however, many important proteins have as yet undetermined structures. Structural states are constrained by residue-residue ... -
Extensible Proof Engineering in Intensional Type Theory
(2015-02-24)We increasingly rely on large, complex systems in our daily lives---from the computers that park our cars to the medical devices that regulate insulin levels to the servers that store our personal information in the cloud. ... -
Extension Request: An Underexplored Response to Deadlines
(2021-01-11)A task deadline is a useful tool to improve productivity and coordination in organizations. However, when setting deadlines, people often underestimate how much time tasks will require to complete. As a result, task deadlines ... -
Extensions of Randomization-Based Methods for Causal Inference
(2015-04-20)In randomized experiments, the random assignment of units to treatment groups justifies many of the traditional analysis methods for evaluating causal effects. Specifying subgroups of units for further examination after ... -
Extracellular Matrix as a Key Mediator of Mammary Tumor Cell Normalization
(2013-10-08)Some epithelial cancers can be induced to revert to quiescent differentiated tissues when combined with embryonic mesenchyme; however, the mechanism of this induction is unknown. This dissertation is based on the hypothesis ... -
Extracting Spatiotemporal Word and Semantic Representations from Multiscale Neurophysiological Recordings in Humans
(2012-09-13)With the recent advent of neuroimaging techniques, the majority of the research studying the neural basis of language processing has focused on the localization of various lexical and semantic functions. Unfortunately, ... -
Extreme Liquid Superheating and Homogeneous Bubble Nucleation in a Solid State Nanopore
(2016-05-05)This thesis explains how extreme superheating and single bubble nucleation can be achieved in an electrolytic solution within a solid state nanopore. A highly focused ionic current, induced to flow through the pore by ... -
Extrinsic and Intrinsic Factors Impacting Local Circuit Inhibition in the Neocortex
(2017-01-25)Neuronal circuits controlling our perception and behaviors are radically shaped by experiences during early critical periods. For example, early life stress (ELS) has been linked to enduring negative behavioral consequences ... -
The Eye of the Tsar: Intelligence-Gathering and Geopolitics in Eighteenth-Century Eurasia
(2016-04-29)This dissertation argues for the importance of knowledge production for understanding the relationship between the Russian Empire, the Qing Dynasty, and European actors, from the mid-seventeenth to the early nineteenth ... -
Efficient Algorithms for Statistical Estimation
(2021-08-24)Statistical estimation aims to find parameters or structures relating to an underlying distribution given empirical samples. Many statistical estimation problems are information theoretically solvable, but are not fully ... -
The Fabricated Forest
(2016-01-27)This dissertation approaches historical ecology as reflexive process, tying together archaeology, iconographic analysis, ethnography, and ethnohistory to argue that modern tropical ecosystems are the result of long-term, ... -
Fabrication and Characterization of Single-Crystal Diamond Photonic Cavities
(2013-09-19)Cavity quantum electrodynamics provide a platform to form a quantum network which connects individual quantum bits (qubits) via photon. Optical cavity, a device which traps photons in a confined volume can enhance the ... -
Fabrication techniques for femtosecond laser textured and hyperdoped silicon
(2016-05-18)This thesis presents a range of advances in the fabrication of femtosecond laser textured and hyperdoped silicon, a material platform with potential applications in photovoltaics, photodetectors, light-emitting diodes, ... -
Face Identification in the Internet Era
(2013-02-11)Despite decades of effort in academia and industry, it is not yet possible to build machines that can replicate many seemingly-basic human perceptual abilities. This work focuses on the problem of face identification that ... -
The Facilitation of Protein-DNA Search and Recognition by Multiple Modes of Binding
(2012-12-12)The studies discussed in this thesis unify experimental and theoretical techniques, both established and novel, in investigating the problem of how a protein that binds specific sites on DNA translocates to, recognizes, ... -
Facilitative Boundary Leadership: Enabling Collaboration in Complex, Multi-Organizational Work
(2015-05-11)Increasing complexity, flatter organizational structures and rapidly changing environments require coordination and collaboration with individuals and teams across organizations. As teams navigate these complex organizational ...