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 13 of 13 for “"Paul Martin"”.
-
Seed dispersal in South African trees: with a focus on the megafaunal fruit and their dispersal agents
… In collaboration with Pleistocene faunal expert Paul Martin they conjectured that these fruit were ecological anachronisms that had evolved in the presence of large terrestrial vertebrates (>1000kg - megafauna) but had remained long after their demise (Janzen and Martin, 1982).
-
High temperature SO2 chemisorption on model systems. Implications for in-plume processes.
Volcanic volatile species are scavenged by silicate ash during transition through eruption plumes. Scavenging may form S, F and Cl salts and acids on ash surfaces, though the mechanisms and controlling variables remain poorly understood. A limited mechanistic understanding impedes estimation of …
-
Surface Resistance Measurements of Superconducting Niobium Samples with a Triaxial Cavity
<p>This experimental study has revealed and investigated many of the physical issues that affect accurate measurement of the surface resistance for small samples consisting of superconducting niobium films on copper substrates. It is believed that this work provides the groundwork for future …
-
An Exploratory Analysis of the Psychological Dimensions of Airline Security and Correlates of Perceived Terrorism Threats: A Study of Active American Airlines Pilots.
<p>The September 11, 2001, terrorist attack resulted in a myriad of new policies designed to enhance aviation security. These policies ostensibly considered the origins of the exact threat facing the United States. Missing, however, were the inputs from rank and file pilots of the airlines that …
-
Critiquing the UK Judiciary's Response to Article 10 Post-HRA: Undervaluing the Right to Freedom of Expression?
The arrival of the Human Rights Act 1998 (the “HRA”) stimulated much speculation as to the effect that the Act would have on judicial approaches to the relationship between the individual and State. In particular, the Act generated expectations that it would raise rights consciousness within …
-
PolyFS Visualizer
<p>One of the most important operating system topics, file systems, control how we store and access data and form a key point in a computer scientists understanding of the underlying mechanisms of a computer. However, file systems, with their abstract concepts and lack of concrete learning aids, is …
-
Photoproduction of 42.4 Mev Positive Pions From Hydrogen at Laboratory Angles Between 50 and 170 Degrees
Made available in DSpace on 2015-05-12T17:12:31Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6303202.PDF: 4801599 bytes, checksum: a1b06ed8f112f5084f1fb41272382fb0 (MD5) Previous issue date: 1962
-
Uncovering the Biosynthesis of Natural Products Using Fourier-Transform Mass Spectrometry
Within some of the simplest bacteria there exists the prospect of novel natural products with an exciting array of bioactivities. These natural products are assembled by a vast array of enzymes which can transform the simplest building blocks into large, complex molecules. Fourier-Transform mass …
-
Problems in the philosophy of linguistics.
Massachusetts Institute of Technology. Dept. of Philosophy. Thesis. 1973. Ph.D.
-
Exploring the Vulnerabilities of Traffic Collision Avoidance Systems (TCAS) Through Software Defined Radio (SDR) Exploitation
Traffic Collision Avoidance Systems (TCAS) are safety-critical systems that are deployed on most commercial aircraft in service today. However, TCAS transactions were not designed to account for malicious actors. While in the past it may have been infeasible for an attacker to craft arbitrary radio …
-
Continuous column flotation of ultrafine coal using microbubbles
A flotation column has been developed Incorporating the use of fine air bubbles (less than 100 microns) to remove ash-forming minerals from micronized coal. The microbubble generator used In this work has been characterized and found to yield a very narrow size distribution. Microbubble column …
-
Democracy Promotion or Self Promotion? Canadian Bilateral Electoral Observation Missions to Ukraine, 2004-2014
The purpose of this thesis is to determine and assess the rationale, objectives, and nature behind Canada’s bilateral electoral observation missions (EOM) to the country of Ukraine. Using international EOM standards and norms to act as a baseline, the thesis identifies differences that exist …