Digital Commons Network^™

Examining Ambiguities In The Automatic Packet Reporting System, Kenneth W. Finnegan

Master's Theses

The Automatic Packet Reporting System (APRS) is an amateur radio packet network that has evolved over the last several decades in tandem with, and then arguably beyond, the lifetime of other VHF/UHF amateur packet networks, to the point where it is one of very few packet networks left on the amateur VHF/UHF bands. This is proving to be problematic due to the loss of institutional knowledge as older amateur radio operators who designed and built APRS and other AX.25-based packet networks abandon the hobby or pass away. The purpose of this document is to collect and curate a sufficient body …

A Vegetation Analysis On Horn Island, Mississippi, Ca. 1940 Using Characteristic Dimensions Derived From Historical Aerial Photography, Guy Wilburn Jeter Jr.

Master's Theses

Horn Island is part of the MS/AL barrier island chain in the northern Gulf of Mexico located approximately 18kn off the coast of Mississippi. This island’s habitats have undergone many transitions over the last several decades. The goal of this study was to quantify habitat change over a seventy year period using historical black and white photography from 1940. Using present NAIP imagery from the USDA, habitat structure was estimated by using geo-statistics, and second order statistics, from a co-occurrence matrix, to characterize texture for habitat classification. Percent land cover was then calculated to determine overall land cover change over …

The Application Of P-Bar Theory In Transformation-Based Error-Driven Learning, Bryant Harold Walley

Master's Theses

In P-bar Theory, Perkins et al. (2014) proposed a rule based method for determining the context of a partext (i.e., a part of a text document).

In Transformation-Based Error-Driven Learning and Natural Language Processing: A Case Study in Part-of-Speech Tagging Brill (1995) demonstrates a method of error-driven learning applied to individual words at the sentence level to determine the part of speech each word represents.

We combine these two concepts providing a transformation-based error-driven learning algorithm to improve the results obtained from the static rules Perkins proposed and determine if the rule order prediction will provide additional metadata.

A Phenological Study Of Bat Communities In Southern Mississippi Caves, Zachary Uriah Roth

Master's Theses

Mississippi is generally not known for its caves, and consequently its cave flora and fauna remain largely unstudied. From fall 2010 to winter 2013, we studied the bat populations in the three largest caves in Mississippi. The most common (and only) species found in these caves were Myotis austroriparius and Perimyotis subflavus. I collected monthly data on the number of bats per species, behaviors and locations of the bats within the caves, as well as atmospheric data at selected positions within each cave. All three caves were found to have significant temperature differences between seasons (winterPerimyotis subflavus was found …

Did Money Matter? Interpreting The Effect Of Displayed Wealth On Social Relations Within An Enslaved Community, Matthew Clark Greer

Master's Theses

Social relationships structure daily life in a startling, and important, variety of ways. However, when considering the social world that existed inside slave quarters across the Virginia Piedmont (and the Antebellum South), archaeologists have not been able to come to a clear consensus on how to approach the study of social networks; with some researchers focusing on social standing, seen most often through the role of material wealth to create connections, and others focusing on how interactions can be meaningfully interpreted from the archaeological record. This thesis represents an attempt to bridge these two theoretical stances, by looking to see …

Neighborhoods, Proximity To Daily Needs, & Walkability In Form-Based Codes, Evan Evangelopoulos

Master's Theses

Form-based codes are evaluated with criteria often requiring additional clarification. To better identify form-based code evaluation criteria, this thesis identifies the major intentions of form-based codes from the literature and focuses on the first intention, quality of life. The form-based code literature relates quality of life to three principles with underlying parameters: neighborhood with a center and edge, proximity to daily needs, and walkability. Neighborhood refers to the identification of walkable districts of about .25 mile radius with a clear center and edge. Proximity to daily needs requires diversity of uses in proximity to residential uses so that residents travel …

Hadrian's Wall: A Study In Function, Mylinh Van Pham

Master's Theses

Earlier studies on Hadrian's Wall have focused on its defensive function to protect the Roman Empire by foreign invasions, but the determination is Hadrian's Wall most likely did not have one single purpose, but rather multiple purposes. This makes the Wall more complex and interesting than a simple structure to keep out foreign intruders. Collective research on other frontier walls' functions and characteristics around the empire during the reign of Hadrian are used to compare and determine the possible function or functions of the Wall. The Wall not only served political purposes, but also had economic and social uses as …

The Role Of Lithology In Glacial Valley Cross-Sectional Shape In Sierra Nevada, California, Kaai Jensen

Master's Theses

It is commonly inferred that alpine glaciers transform fluvial valleys from V to U-shaped. It has been suggested that, under certain circumstances, glaciers are unable to modify V-shaped valleys and that lithology may play an important role in a glacier's ability to effectively erode bedrock. To test this hypothesis, six glaciated valleys with both U and V-shaped cross sections were chosen in the Sierra Nevada (CA) to examine how lithological properties might affect patterns of glacial erosion: Tenaya Canyon, Tuolumne River, Little Yosemite Valley, the San Joaquin River, the north fork of the King River, and Deadman Canyon. Valley profiles …

Mapping The Distribution Of Barrier Island Slash Pine Woodland And Determining Growth Responses Of Pinus Elliottii To Hurricane Katrina (2005) On Cat Island, Mississippi, William Richard Funderburk

Master's Theses

Barrier islands are ubiquitous features along the Atlantic and Gulf of Mexico North American coastline and are subjected disturbances such as extreme episodic events. The wind, waves, and storm surges of Hurricane Katrina heavily impacted the Mississippi–Alabama barrier island chain on August 29, 2005. Cat Island experienced a 7-m storm surge, the highest wind energy in the chain, but was estimated to have the least amount of forest mortality. The purpose of this study was to investigate the distribution of Pinus elliottii on Cat Island Mississippi and evaluate relationships of elevation with mean radial growth rate (mm y ̄ ˡ), …

Selling Tradition: Impression Management And Draft Animal Agriculture Of A Mississippi Farmstead, Matthew Corbin Lance

Master's Theses

This thesis is a case study of a family of farmers in Mississippi’s Piney Woods who use horse-drawn equipment to grow crops. This practice is notable in the context of a larger agricultural system that prioritizes mechanization (particularly the use of tractors). The production style and their use of local direct selling via farmers markets allowed them to thrive economically because they were able to tap into a niche market of consumers desiring an alternative to the modern, conventional agricultural system.

Other literature on Alternative Food Networks (AFN) discusses the issues of alterity and appropriation—that is, whether AFN ventures are …

Cross-Structures And Their Role In The Development Of The Taiwan Fold-And-Thrust Belt, Ellen A. Lamont

Master's Theses

Traditional models of orogenic growth over-simplify the processes involved in the development of fold-and-thrust belts by failing to take into consideration along-strike irregularities of the collisional footwall. Inherited footwall geometries are fairly common and can drastically alter the shape of an advancing orogen during collision. In Taiwan, the geometry of the Chinese continental margin has been suggested to facilitate the development of several cross-structures, transverse structures that trend oblique to the structural grain of the orogen, within the fold-and-thrust belt. These cross-structures are believed to accommodate deformation around a regional footwall promontory, the Peikang High. In total, six major tear …

Latino Rhythms In Downtown Los Angeles: A Case Study Of The Social, Physical, And Economic Environment Of "La Broadway", Ulises Antonio Gonzalez

Master's Theses

In an attempt to practice inclusive planning, this research project explores whether Broadway Avenue functions as an ethnic commercial strip and identifies social, physical, and economic components that contribute to the Latino neighborhood/ barrio. Using pilot studies Loukaitou-Sideris (2000), Loukaitou-Sideris (2002), Rojas (1993), Manzumdar et al. (2000), Main (2007), and Fernando (2007) as a foundation, this research uses a single case study in addition to several research methods: 42 random surveys, literature review and analysis, site observations/pictures, and land use survey.

Various scholars write that barrios have unique physical, social, economic, and political attributes. A new aesthetic, art, symbols, …

Can Community Water Projects Combat Child Diarrhea? Results From The Solomon Islands, Thomas G. Sackman

Master's Theses

There is a vast amount of existing literature that has empirically scrutinized whether or not community water projects have the ability to mitigate diarrheal disease. A strong and persistent belief thinks that community water projects do have the means, however, over the decades empirical work commonly finds this to simply not be true. This study expands the research question to the Solomon Islands. The research tests the hypothesis using a differences-in-differences identification strategy by utilizing the government’s staggered timing rollout of community water subprojects with whether or not a village received a community water subproject to test for a program …

The Determinants Of Urban Land And Property Values: The Case Of Rwanda, Pierre Kolowe

Master's Theses

Abstract: The paper seeks to determine the factor of urban housing values and their effects on the well-being of urban residents in terms of access to potable water, quality sanitation and other housing amenities. The study uses a total of 36 variables on structural, environmental and neighborhood attributes from the 2010-2011 survey data on income, expenditures and living conditions for the Rwandan urban households. With the use of the semi-log form of the hedonic price model and the survey data, factors of urban properties are determined and quantitative estimates of the Willingness-to-pay for environmental amenities are determined. The analysis of …

Historical Channel Adjustments In The Pascagoula River Basin And Adjacent Systems, Southeast Mississippi, Michael Charles Ayers

Master's Theses

This project identifies historical cross-section adjustments in 13 rivers of the Pascagoula Basin and adjacent fluvial systems over the last 30-50 years, which could reveal hydrologic and sedimentary responses to natural causes such as flooding or various anthropogenic activities in the region, such as logging, urban development, and instream aggregate extraction. Historical depth and streamflow measurement notes, taken at established USGS gaging stations, were used to determine incremental width, depth, and discharge values. For each section and date, individual depth measurements were subtracted from the adjusted mean gage height, which represents the channel bed or submerged bank positions. Comparisons of …

Three-Dimensional Reconstruction Of Marine Clay Nano- And Microstructure By Transmission Electron Microscopy: Analysis Of Fabric And Pore Network, Jessica Rae Gardner Douglas

Master's Theses

Three-dimensional reconstructions of marine fine-grained sediment open a new dimension for studying nano- and microscale organo-clay fabric important to improving and advancing organic matter (OM) sequestration and fluid flow dynamics modeling. I created 3-D reconstructions of clay fabric and pore pathways from serial sections and photographic mosaics obtained using transmission electron microscopy. These reconstructions show aggregations of clay domains, surrounding OM, and pore networks. I examined a Model sample (laboratory consolidated) with 1% OM and a Natural sample (polychaete fecal pellet) with high levels of OM. Three-dimensional reconstructions were segmented into 300 nm cube subsamples to make highly localized qualitative …

U.S. Relationships With Iran, Israel, And Pakistan: A Realist Explanation, Aaron Daniel Coates

Master's Theses

The purpose of this work is to assess U.S. relations with Iran, Israel, and Pakistan throughout the Cold War into the contemporary age of Islamic extremism. It demonstrates how the international relations theory of realism is most applicable to these relations when compared to the four competing theories of neorealism, liberalism, neoliberal institutionalism, and constructivism. Each case study is examined and evaluated in full detail. Particular emphasis is allotted to variables such as foreign aid, interventionism, sanctions, geography, and political and cultural similarities. The thesis concludes by offering a brief explanation as to the lessons that should be learned from …

Assessing Landscape Change In Highland Peru With An Emphasis On Tree Cover Change, 1948-2012, Timothy Guy Sutherlin

Master's Theses

Tree cover change was examined around three cities in the central Andes of Peru, 1948-2012, using repeat photography, remote sensing, and ethnographic methods. Forest transition theory provided a framework to study the causes of the changes observed. The repeat photography results show that there were more trees on the landscape in 2012 than there were in 1948. There were increases in smaller groupings of trees visible in the photography that were associated with smallholder intensification in the form of new woodlots, field borders and dooryard trees. The remote sensing results show there was a significant increase in larger patches of …

A Tale Of Two Cities: Vicksburg And Natchez, Mississippi During The American Civil War, Ruth Poe White

Master's Theses

In 1860, Vicksburg and Natchez, Mississippi, had far more in common with each other than with the rest of the state. Most significantly, they both opposed secession. Beyond that opposition and their initial support for the war, however, the two city’s reactions differed. This thesis argues that one of the main reasons for this difference is that two distinct communities developed in each city. Pre-war experiences shaped the citizens of Natchez and Vicksburg, allowing Vicksburg civilians to quickly develop feelings of Confederate nationalism, while their Natchez counterparts, loyal to their city and their national trade networks, were more pro-Unionist but …

Comparative Analysis Of Two Successive Vintages Of Cabernet Sauvignon Must And Pre-Barrel Wine From Two Distinct Soil Types, Jon Garret Page

Master's Theses

The objective of this study was to determine if there were significant statistical differences in the response variables of Cabernet Sauvignon must and pre-barreled wine analyzed from two vintages from two distinct soil types.

Research was conducted at California Polytechnic University, San Luis Obispo to examine the quantitative chemical analysis of 22 different response variables of Cabernet Sauvignon grapes. The same 22 variables were analyzed in must and pre-barreled wine samples harvested from both Calodo Clay Loam soil and Zaca Clay soil. The analyses were done at both California Polytechnic University, San Luis Obispo and Vinquiry Inc. Labs. The results …

Tunnel Road Safety: A Look At Older Drivers' Performance And Sight Impairment, Edith Lopez

Master's Theses

In California, there is an observed trend in which collisions cluster in and around tunnels. The break in road continuity created by the tunnels disturbs traffic flow that can lead to collisions. One of the main contrasts between open roads and tunnel roads occurs in lighting. Drivers with sight deficiencies are unable to adapt their sight to the change in the lighting environment and may crash due to misperception of road alignment, vehicle’s speed and other physiological reactions, such as tension. The suspect population group of crashes occurring under the influence of tunnels conditions is older drivers.

The literature suggests …

The Legacy Of Antonio Sant'elia: An Analysis Of Sant'elia's Posthumous Role In The Development Of Italian Futurism During The Fascist Era, Ashley Gardini

Master's Theses

This thesis is an examination of the posthumous legacy of Antonio Sant'Elia propagated by F.T. Marinetti during the 1920s and `30s in Fascist Italy. It is during the period of Second Futurism that the Manifesto of Futurist Architecture and the images from the La Città Nuova series came to define Sant'Elia's identity as the figurehead of Futurist architecture. This research contributes to the scholarly discussion of Second Futurism by giving context to specific actions taken by Marinetti during the Fascist era to control how Sant'Elia would be remembered.

This thesis analyzes the Fascist government's control over Italian society, religion, and …

Utilization Of Crowdsourced Maps In Catastrophic Disasters, Makiko Hong

Master's Theses

Crowdsourced data, the collective messages from citizens through social media like Twitter® or Facebook®, have been increasingly recognized as a vital information source in a catastrophic disaster. Because there is often insufficient emergency personnel to gather situational information during a big disaster, the crowdsourced data can offer a supplemental means for data collection or dissemination immediately after the disaster. In addition, crowdsourced maps can empower citizens with their involvement.

In the Haiti earthquake of 2010, crowdsourced data was first used to create a web map application to aid the humanitarian effort. With some success in Haiti, these crowdsourced maps have …

Women In Leadership And The Politics Of Power, Caitlin Maeve Kendall

Master's Theses

With the use of intimate interviews, this qualitative research study employed an experiential, story-telling approach to gather a more thorough understanding of individual female experiences in leadership positions in the field of education in relation to the literature on female leadership in a gendered workforce. Although this study only included the experiences of several women leaders in the field of education in the Chicago area, the preexisting research on the topic guided the interview questions and divulged the nexus between a culture of systematic gendered hierarchy in the workplace and the strategies and characteristics of success employed by female leaders …

An Analysis Of An Andean Cosmovisión: Nature, Culture, Ecology, And Cosmos, Christian Ardeleanu

Master's Theses

Modern life may offer certain benefits for humanity, but it can also create a barrier between humans and the natural world. In contrast, the millenarian Aymara culture of the Bolivian Andes exhibits a harmonic interrelation with nature, ecology, and the cosmos, and it also represents a living system of indigenous knowledge and knowledge production/transformation. The Aymara system of knowing and knowledge production, like other indigenous systems, should not be mistaken for antiquated elements of culture and folklore but should be seen as a distinct and dynamic epistemology. The Aymara cosmovisión is similar to the philosophy of ecology, sharing some general …

Native American Response And Resistance To Spanish Conquest In The San Francisco Bay Area 1769-1846, Gustavo Adolfo Flores

Master's Theses

This study focuses on how secular, governmental, and ecclesiastical Hispanic Empire institutions influenced the response and resistance of San Francisco Native American groups from 1769 to 1846. This project draws on late 18th and early 19th century primary Spanish documents and secondary sources to help understand the context of indigenous people's adaptive and response behaviors during this period as well as the nuances of their perspective and experience. Using both electronic and physical documents from a number of archival databases, primary Spanish documents were translated and correlated with baptismal and death mission records. This allowed for formulating alternative perspectives and …

A Promiscuous Wallflower: The Rare Zayante Sandhills Endemic Erysimum Teretifolium (Brassicaceae) Benefits From Outcrossing, Miranda Kathleen Melen

Master's Theses

The Zayante sandhills ecosystem of Santa Cruz County, California, contains a rich mosaic of plants and animals adapted to unusual soils and microclimates. In this environment, local adaptation of populations is expected to lead to greater endemism and outbreeding depression. Anthropogenic fragmentation has further isolated populations, however, which paradoxically could result in inbreeding depression. One of these plants, Erysimum teretifolium (Ben Lomond wallflower) is an endangered endemic herb in the Brassicaceae family. This study assessed genetic mixing across remnant patches of E. teretifolium in order to estimate the effects of fragmentation and the reliance on pollinators. A captive breeding colony …

Mapping The Monster: Locating The Other In The Labyrinth Of Hybridity, Jill Kristine Harper

Master's Theses

By the last two decades of the nineteenth century, Great Britain led the European contest for imperial dominion and successfully extended its influence throughout Africa, the Americas, South East Asia, and the Pacific. National pride in the world's leading empire, however, was laced with an increasing anxiety regarding the unbridled frontier and the hybridization of Englishness and the socio-ethnic and cultural Other. H. Rider Haggard's She, Bram Stoker's Dracula, and Richard Marsh's The Beetle, three Imperial Gothic novels, personify the monstrosity of hybridity in antagonists who embody multiple races and cultures. Moreover, as representatives of various ancient …

Environmental Education As A Catalyst For Changing Students' Environmental Attitudes: A Survey Of Ten Universities In The Tokyo Bay And San Francisco Bay Areas, Minako Nishiyama

Master's Theses

Environmental education has been internationally recognized as a key tool to counter increasing threats to the environment. Previous studies have found that environmental values and beliefs are the fundamental factors that shape various pro-environmental behaviors. This study aimed to increase our understanding of how environmental education during childhood and university periods influence students' sense of connectedness to nature and ecological worldview. Two measures, the Connectedness to Nature Scale (CNS) and the New Ecological Paradigm (NEP) scale, were used for this purpose. A total of 1,266 students in 10 universities in the San Francisco Bay Area and Tokyo Bay Area participated …

Land Grabs And Implications On Food Sovereignty And Social Justice In Senegal, Joanna Lafrancesca

Master's Theses

This thesis focuses on the case study of Senegal to examine the implications of large- scale land acquisitions on the livelihoods of small-scale farmers. I investigate the diverse perspectives of market enthusiasts, human rights organizations, peasants, the state, and international financial organizations on large-scale land acquisitions. Based on primary research, I argue that the state of Senegal plays an active role in permitting “land grabs” and that they pose a threat to food sovereignty among Senegalese host communities. Lastly, I argue there needs to be a broader understanding of long-term consequences and risks to insure social justice in areas affected …