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 2585 for “"observational"”.
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Observational space-times
… attempts to achieve these objectives, and the observational as well as philosophical status of these assumptions.
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Experimental and observational geometry
… have been slow in adopting the laboratory and observational methods.</p> <p>This thesis has been written to encourage the student in his work of observing geometrical forms, and in the construction of good designs and geometrical figures, and to obtain a better practical understanding of the …
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Observational aspects of dark energy
… on a similar time scale. Modeling several observational and theoretical systematics has only moderate effects on these forecasts. We discuss additional systematics which will require further study using simulations. Finally, we study how the experiments in the future will be able to …
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Observational learning with finite memory
We study a model of sequential decision making under uncertainty by a population of agents. Each agent prior to making a decision receives a private signal regarding a binary underlying state of the world. Moreover she observes the actions of her last K immediate predecessors. We discriminate …
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Observational complexity of character strings.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1972. M.S.
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Improving Observational Causality Using Machine Learning
… This thesis will explore the interplay between observational causal inference and machine learning, focusing on improving different aspects of the causal inference study lifecycle. Namely, we develop methods that facilitate the discovery of new study opportunities, improve the feasibility of …
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The Observational Diversity of sub-Neptunes
This dissertation focuses on characterizing the atmospheres of sub-Neptunes (planets larger than Earth but smaller than Neptune), the most common exoplanets in the galaxy. With no examples in our own Solar System, we are limited to the data quality of remote-sensing capabilities. I aim to unveil …
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Observational learning and pain-related fear
… that pain-related fear can develop via an observational learning pathway, that is through observing others displaying pain behaviour during an encounter with a painful stimulus. For this purpose, a differential fear conditioning paradigm was used in several experimental studies with healthy …
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A Functional Analysis on the Effects of an Observational Intervention using a Peer-Yoked Contingency Game Board on the Induction of Observational Performance, Observational Acquisition and Naming
… of a peer-yoked contingency on the induction of observational performance, observational acquisition, and the Naming capability. In Experiment I, three male Kindergarten and first grade students diagnosed with disabilities were selected as target participants because they had the listener …
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Observational Investigations of the Progenitors of Supernovae
… observations – this will hugely reduce the observational cost of constructing bolometric light curves, a tool of great importance when hoping to constrain the nature of a SN explosion and hence its progenitor. Finally, this method is utilised to construct the largest bolometric CCSN …
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Observational studies of highly evolved cataclysmic variables
Cataclysmic Variables (CV) are binary systems where a main-sequence star transfers mass onto a white dwarf (WD). According to standard evolutionary theory, angular momentum loss drives CVs to initially evolve from longer to shorter orbital periods until a minimum period is reached (? 80 minutes). …
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Observational Insights into White Dwarf Planetary Systems
… thesis focuses on these polluted white dwarfs to observationally investigate how the material ultimately accretes onto the white dwarfs, and the inferences made about the composition of exoplanetary bodies. These white dwarfs become polluted due to the scattering of exoplanetary bodies on star …
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An observational study of freeway lane-changing behaviour
Every one who has driven on a freeway has observed the phenomenon of lanechanging. This phenomenon is, of course, caused by the desire of most of the drivers not to be in a slow-moving lane. Therefore, the average driver who finds himself in such a lane moves into a neighboring faster lane, usually …
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Improved observational programs for the Arecibo ionospheric observatory
A new set of ionospheric data taking programs have been completed for the Arecibo Ionospheric Observatory. One will cover the 200-2000 km range and measure electron number densities, temperatures and composition with a time resolution of 25 min. at low altitudes and 1 and one-fourth hrs. at high …
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