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Ultraviolet Radiation Tolerance in High Elevation Copepods from the Rocky Mountains of Colorado, USA (open access)

Ultraviolet Radiation Tolerance in High Elevation Copepods from the Rocky Mountains of Colorado, USA

Copepods in high elevation lakes and ponds in Colorado are exposed to significant levels of ultraviolet radiation (UV), necessitating development of UV avoidance behavior and photoprotective physiological adaptations. The copepods are brightly pigmented due to accumulation of astaxanthin, a carotenoid which has photoprotective and antioxidant properties. Astaxanthin interacts with a crustacyanin-like protein, shifting its absorbance from 473 nm (hydrophobic free form, appears red) to 632 nm (protein-bound complex, appears blue). In six sites in Colorado, habitat-specific coloration patterns related to carotenoprotein complex have been observed. The objective of this study was to determine whether pigment accumulation or carotenoprotein expression has a greater effect on resistance to UV exposure. For each site, copepod tolerance to UV was assessed by survivorship during UV exposure trials. Average UV exposure was determined for each habitat. Astaxanthin profiles were generated for copepods in each site. Ability to withstand UV exposure during exposure trials was significantly different between color morphs (p < 0.0001). Red copepods were found to tolerate 2-fold greater levels of UVB than blue or mixed copepods. Additionally, red copepods have much higher levels of total astaxanthin than blue or mixed copepods (p < 0.0001) and receive a higher daily UV dose (p < …
Date: December 2011
Creator: Hudelson, Karista
System: The UNT Digital Library
Formal Devices of Trance and House Music: Breakdowns, Buildups, and Anthems (open access)

Formal Devices of Trance and House Music: Breakdowns, Buildups, and Anthems

Trance and house music are sub-genres within the genre of electronic dance music. The form of breakdown, buildup and anthem is the main driving force behind trance and house music. This thesis analyzes transcriptions from 22 trance and house songs in order to establish and define new terminology for formal devices used within the breakdown, buildup and anthem sections of the music.
Date: December 2011
Creator: Iler, Devin
System: The UNT Digital Library
Can Social Disorganization and Social Capital Factors Help Explain the Incidences of Property Crimes in Turkey? (open access)

Can Social Disorganization and Social Capital Factors Help Explain the Incidences of Property Crimes in Turkey?

Organized crime and terrorism taking place in the Turkish provinces get more attention in the public agenda than other type of crimes. Although property crimes receive less attention, they pose a serious threat to public order and the social welfare of Turkish society. Academic researchers have also paid little attention to the analysis of property crimes at the macro level in Turkey. For these reasons, this study focused on the analysis of property crimes for three years period, 2005, 2006 and 2007 in Turkey, using a conceptual model of social disorganization. Provincial level data from Turkish governmental agencies were used. The findings of multivariate analyses showed that social disorganization approach, as measured in this study, provided a partial explanation of property crime rates in Turkey. Family disruption and urbanization had significant effects on property crime rate, while remaining exogenous elements of social disorganization (i.e., SES, population heterogeneity and residential mobility) did not have any expected effects. In mediation analysis, using faith-based engagement and political participation rates as mediators between the structural factors of social disorganization and property crime rate provided marginal support for the theory. Political participation rate partially mediated the relationship between property crime rate and urbanization rate, while …
Date: December 2011
Creator: Irmak, Fatih
System: The UNT Digital Library
Explaining “Everyday Crime”: A Test of Anomie and Relative Deprivation Theory (open access)

Explaining “Everyday Crime”: A Test of Anomie and Relative Deprivation Theory

Every day, individuals commit acts which are considered immoral, unethical, even criminal, often to gain material advantage. Many people consider cheating on taxes, cheating on tests, claiming false benefits, or avoiding transport fare to be wrong, but they do them anyway. While some of these acts may not be formally illegal, they are, at best, considered morally dubious and is labeled “everyday crime.” Anomie theory holds that individuals make decisions based on socialized values, which separately may be contradictory but together, balances each other out, producing behavior considered “normal” by society. When one holds an imbalanced set of values, decisions made on that set may produce deviant behavior, such as everyday crime. RD theory holds that individuals who perceive their own deprivation, relative to someone else, will feel frustration and injustice, and may attempt to ameliorate that feeling with deviant behavior. Data from the 2006 World Values Survey were analyzed using logistic regression, testing both constructs concurrently. An individual was 1.55 times more likely to justify everyday crime for each calculated unit of anomie; and 1.10 times more likely for each calculated unit of RD. It was concluded from this study that anomie and relative deprivation were both associated with …
Date: December 2011
Creator: Itashiki, Michael Robert
System: The UNT Digital Library
Employment Interventions for Consumers with HIV/AIDS (open access)

Employment Interventions for Consumers with HIV/AIDS

A systematic review of studies pertaining to employment interventions for consumers with HIV/AIDS was conducted in order to ascertain what programs and services have resulted in employment for people in this population. Research shows that programs specifically designed for individuals with HIV/AIDS have been beneficial for this population in regards to obtaining employment. This study discusses four employment interventions for people with HIV/AIDS including participation rates and employment outcome for program participants. A review of literature pertaining to employment interventions for individuals with HIV/AIDS is presented. Additionally, the systematic review methodology and results are presented. Finally, I discuss the results, limitations in regards to conducting the study, current research and recommendations for future research.
Date: December 2011
Creator: James, Amanda
System: The UNT Digital Library
Measuring Atmospheric Ozone and Nitrogen Dioxide Concentration by Differential Optical Absorption Spectroscopy (open access)

Measuring Atmospheric Ozone and Nitrogen Dioxide Concentration by Differential Optical Absorption Spectroscopy

The main objective was to develop a procedure based on differential optical absorption spectroscopy (DOAS) to measure atmospheric total column of ozone, using the automated instrument developed at the University of North Texas (UNT) by Nebgen in 2006. This project also explored the ability of this instrument to provide measurements of atmospheric total column nitrogen dioxide. The instrument is located on top of UNT’s Environmental Education, Science and Technology Building. It employs a low cost spectrometer coupled with fiber optics, which are aimed at the sun to collect solar radiation. Measurements taken throughout the day with this instrument exhibited a large variability. The DOAS procedure derives total column ozone from the analysis of daily DOAS Langley plots. This plot relates the measured differential column to the airmass factor. The use of such plots is conditioned by the time the concentration of ozone remains constant. Observations of ozone are typically conducted throughout the day. Observations of total column ozone were conducted for 5 months. Values were derived from both DOAS and Nebgen’s procedure and compared to satellite data. Although differences observed from both procedures to satellite data were similar, the variability found in measurements was reduced from 70 Dobson units, with …
Date: December 2011
Creator: Jerez, Carlos J.
System: The UNT Digital Library
Struggling Middle School Readers Learning To Make Intertextual Connections With Texts (open access)

Struggling Middle School Readers Learning To Make Intertextual Connections With Texts

When people read, they often make connections to their lives, the world, and other texts. Often, these connections are not overt, but are a thinking process invisible to observers. The purpose of this study was to explore the intertextual connections struggling middle school students made as they read multiple topically-related texts to build knowledge, through observation of discussions, surveys, and interviews with students. The students received 30 lessons based on the constructivist model of comprehension. Data sources included observations during the delivery of these interactive lessons and surveys regarding their connections, their use of the connection strategies in content area classes, and their knowledge of the topic. The observations and surveys were analyzed using the constant comparative method. Information rich cases were developed from these data, as well as from interviews with selected students. Although the students were considered struggling readers, they did not respond to the instruction as stereotypical struggling readers. They were engaged, and they led discussions and shared connections with the class. The students demonstrated they learned to make connections and more text-to-text or intertextual connections overall. The students made connections when interested in the topic and had opportunities to discuss the texts. Finally, the students sometimes …
Date: December 2011
Creator: Johnson, Sunni
System: The UNT Digital Library
Risk Management And Market Efficiency On The Midwest Independent System Operator Electricity Exchange. (open access)

Risk Management And Market Efficiency On The Midwest Independent System Operator Electricity Exchange.

Midwest Independent Transmission System Operator, Inc. (MISO) is a non-profit regional transmission organization (RTO) that oversees electricity production and transmission across thirteen states and one Canadian province. MISO also operates an electronic exchange for buying and selling electricity for each of its five regional hubs. MISO oversees two types of markets. The forward market, which is referred to as the day-ahead (DA) market, allows market participants to place demand bids and supply offers on electricity to be delivered at a specified hour the following day. The equilibrium price, known as the locational marginal price (LMP), is determined by MISO after receiving sale offers and purchase bids from market participants. MISO also coordinates a spot market, which is known as the real-time (RT) market. Traders in the real-time market must submit bids and offers by thirty minutes prior to the hour for which the trade will be executed. After receiving purchase and sale offers for a given hour in the real time market, MISO then determines the LMP for that particular hour. The existence of the DA and RT markets allows producers and retailers to hedge against the large fluctuations that are common in electricity prices. Hedge ratios on the MISO …
Date: December 2011
Creator: Jones, Kevin
System: The UNT Digital Library
Predictors Of Physical Activity Participation In The Older Foreign-born Population In The United States: Data From The National Health Interview Survey (Nhis) 2002-2009 (open access)

Predictors Of Physical Activity Participation In The Older Foreign-born Population In The United States: Data From The National Health Interview Survey (Nhis) 2002-2009

Promoting physical activity in older adults is an important part of healthy aging. With an increasing older foreign-born population in the United States, there is limited information on physical activity participation in this group and even less for those experiencing difficulties in physical functioning and chronic illnesses. The primary objective of the study was to determine how physical factors, psychological issues, chronic illnesses, pain symptoms, perceived health status, and number of years living in the U.S. influence physical activity participation in older foreign-born respondents. The secondary objective was to identify the difference of predictors of physical activity participation between older foreign-born and older native-born respondents. The study is based on data collected from the National Health Interview Survey (NHIS) conducted from 2002 to 2009 for adults aged 50 or older. Ordinal logistic regression analysis was used to predict and explain the physical activity participation in older foreign-born respondents. Factors associated with more physical activity participation included a higher level of education, more time living in the U.S., more positively perceived health status, and having at least one chronic illnesses, or pain symptoms. Having more difficulties in physical functioning caused older foreign-born respondents to participate less in physical activity. This study …
Date: December 2011
Creator: Junrith, Kittiwan
System: The UNT Digital Library
Hardware Implementation Of Conditional Motion Estimation In Video Coding (open access)

Hardware Implementation Of Conditional Motion Estimation In Video Coding

This thesis presents the rate distortion analysis of conditional motion estimation, a process in which motion computation is restricted to only active pixels in the video. We model active pixels as independent and identically distributed Gaussian process and inactive pixels as Gaussian-Markov process and derive the rate distortion function based on conditional motion estimation. Rate-Distortion curves for the conditional motion estimation scheme are also presented. In addition this thesis also presents the hardware implementation of a block based motion estimation algorithm. Block matching algorithms are difficult to implement on FPGA chip due to its complexity. We implement 2D-Logarithmic search algorithm to estimate the motion vectors for the image. The matching criterion used in the algorithm is Sum of Absolute Differences (SAD). VHDL code for the motion estimation algorithm is verified using ISim and is implemented using Xilinx ISE Design tool. Synthesis results for the algorithm are also presented.
Date: December 2011
Creator: Kakarala, Avinash
System: The UNT Digital Library
Comparing Latent Dirichlet Allocation and Latent Semantic Analysis as Classifiers (open access)

Comparing Latent Dirichlet Allocation and Latent Semantic Analysis as Classifiers

In the Information Age, a proliferation of unstructured text electronic documents exists. Processing these documents by humans is a daunting task as humans have limited cognitive abilities for processing large volumes of documents that can often be extremely lengthy. To address this problem, text data computer algorithms are being developed. Latent Semantic Analysis (LSA) and Latent Dirichlet Allocation (LDA) are two text data computer algorithms that have received much attention individually in the text data literature for topic extraction studies but not for document classification nor for comparison studies. Since classification is considered an important human function and has been studied in the areas of cognitive science and information science, in this dissertation a research study was performed to compare LDA, LSA and humans as document classifiers. The research questions posed in this study are: R1: How accurate is LDA and LSA in classifying documents in a corpus of textual data over a known set of topics? R2: How accurate are humans in performing the same classification task? R3: How does LDA classification performance compare to LSA classification performance? To address these questions, a classification study involving human subjects was designed where humans were asked to generate and classify documents …
Date: December 2011
Creator: Anaya, Leticia H.
System: The UNT Digital Library
Senior Graduating Nursing Students: Career Choices in Gerontological Nursing in Response to Expanding Geriatric Population (open access)

Senior Graduating Nursing Students: Career Choices in Gerontological Nursing in Response to Expanding Geriatric Population

Access to healthcare is needed and wanted by people of all ages and especially by those of the older population. The number of people in the 65 years of age and older population is rapidly growing with their needs expected to have a significant impact on the existing healthcare system and healthcare providers. The impact will be critical given the severe shortage of healthcare providers, especially of nurses and the rate of services being more often provided in non-hospital settings. The objectives of the study were to discover the plans of graduating nursing students as they choose their first place of employment, if they have future plans to pursue a nursing advance practice degree, and if they are very happy with their decision to become a nurse. Data for the study were obtained from a questionnaire presented to senior graduating nursing students. The findings were: (a) Most students prefer a hospital setting. (b) Younger students are three times as likely to seek out the hospital, and 1/3 of the students seek out the hospital setting because they were encouraged to become a nurse. (c) About 70% of the students want to work with their friends while 1/3 will seek the …
Date: December 2011
Creator: Anders, Judith E.
System: The UNT Digital Library
Predictive Relationships among Learner Characteristics, Academic Involvement, and Doctoral Education Outcomes (open access)

Predictive Relationships among Learner Characteristics, Academic Involvement, and Doctoral Education Outcomes

The literature identifies multiple factors pertinent to learner characteristics and learning experiences that may promote doctoral education outcomes, and yet little quantitative research has examined relationships between those factors deemed important in the effectiveness of doctoral education. This study sought to examine predictive relationships among doctoral students’ learner characteristics, their involvement in mentorship and intellectual community, and doctoral education outcomes. Using Astin’s theory of involvement and the literature on signature pedagogies in doctoral education as conceptual guides, a survey instrument was constructed for the purpose of measuring variables identified as relevant to the effective formation of scholars. Central to the conceptualization of this study was academic involvement as represented by mentorship and intellectual community. The instrument was validated in a two-stage pilot testing process and administered to doctoral candidates at three public Texas higher education institutions. Of the 217 participants, the majority were female, White (Non-Hispanic), US citizens, and were pursuing education doctorates. Data were analyzed using multivariate statistical analyses. Reliability and validity estimates indicated psychometric integrity of the 20 observed variables measured to represent the constructs of mentorship and intellectual community. Results indicated that doctoral students’ learner characteristics were not notably predictive of doctoral students’ degree of involvement in …
Date: December 2011
Creator: Anderson, Baaska
System: The UNT Digital Library
Critical Literacy Practices, Social Action Projects, and the Reader Who Struggles in School (open access)

Critical Literacy Practices, Social Action Projects, and the Reader Who Struggles in School

This study, conducted at an urban public school, explored the engagements of five, fourth grade, African American students who struggled with reading in school as they participated in critical literacy practices and social action projects with the assumption that critical analysis of written texts and concrete social actions were necessary for student empowerment. Using Discourse Analysis within a microethnographic framework, participants’ responses were analyzed. Early in the study, participants were hesitant to join in critical conversations about race. Over time, as participants deepened their critical literacy engagements, they divulged lived racism both in their private and public worlds. Specifically, the participants described the tensions and transgressions they experienced as minorities from civil rights curriculum, teachers and other students. The findings revealed instead of text based analyses, critical literacy practices transformed into the participants’ critical analysis of racism they experienced in their various worlds (home, school, and the larger, outside world) through language (not text). Similarly, the pre-conceived idea of social action projects changed from the creation of concrete products or actions into discussions in which mainstream discourse was interrupted. Tacit and overt understandings about race, identity and power suggested that the participants assumed multiple and contradictory identities (such as “victim …
Date: December 2011
Creator: Bauer, Courtney Marie
System: The UNT Digital Library
Opera at the Threshold of a Revolution: Francis Poulenc’s Dialogues des Carmélites (1953-1956) (open access)

Opera at the Threshold of a Revolution: Francis Poulenc’s Dialogues des Carmélites (1953-1956)

Francis Poulenc’s three-act opera Dialogues des Carmélites (1953-1956) depicts the struggles of the novice nun Blanche de la Force during the Reign of Terror of the French Revolution. The use of Latin liturgical music at critical points in the opera conveys the ritualistic nature of Catholic worship. The spiritual message of mystical substitution, along with the closely related notion of vicarious suffering, imbue the opera with a spirituality that offers a sharp contrast to earlier operatic settings of Catholic texts, particularly during the age of grand opera. Marian devotion also plays an important role in the opera. The final tableau of the opera stages the execution of Blanche and her sisters, complete with the sound of a guillotine, with the nuns singing the Salve Regina as they proceed to the scaffold. The multivalence of the final tableau highlights the importance of voice and its absence. While the nuns, onstage spectators, and the guillotine are audibly present in the scene, the priest participates solely through gesture. The surfacing of the Lacanian Real in the silent moment of traumatic shock that follows the guillotine’s first fall allows for intertextual references to the opera in Poulenc’s Sonate pour Flûte et Piano (1957) to …
Date: December 2011
Creator: Beard, Cynthia C.
System: The UNT Digital Library
Effect of Rancher’s Management Philosophy, Grazing Practices, and Personal Characteristics on Sustainability Indices for North Central Texas Rangeland (open access)

Effect of Rancher’s Management Philosophy, Grazing Practices, and Personal Characteristics on Sustainability Indices for North Central Texas Rangeland

To assess sustainability of privately owned rangeland, a questionnaire was used to gathered data from ranches in Cooke, Montague, Clay, Wise, Parker, and Jack counties in North Central Texas. Information evaluated included: management philosophy, economics, grazing practices, environmental condition, quality of life, and demographics. Sustainability indices were created based on economic and land health indicator variables meeting a minimum Cronbach‘s alpha coefficient (α = 0.7). Hierarchical regression analysis was used to create models explaining variance in respondents’ indices scores. Five predictors explained 36% of the variance in rangeland economic sustainability index when respondents: 1) recognized management inaction has opportunity costs affecting economic viability; 2) considered forbs a valuable source of forage for wildlife or livestock; 3) believed governmental assistance with brush control was beneficial; 4) were not absentee landowners and did not live in an urban area in Texas, and; 5) valued profit, productivity, tax issues, family issues, neighbor issues or weather issues above that of land health. Additionally, a model identified 5 predictors which explained 30% of the variance for respondents with index scores aligning with greater land health sustainability. Predictors indicated: 1) fencing cost was not an obstacle for increasing livestock distribution; 2) land rest was a component …
Date: December 2011
Creator: Becker, Wayne
System: The UNT Digital Library
The “Nigger Trinity”: Engaging the Discourse in Post Civil Rights/Post 1960s America (open access)

The “Nigger Trinity”: Engaging the Discourse in Post Civil Rights/Post 1960s America

The cultural and popular media landscape of the United States of America changed after the Civil-Rights movement of the 1960s. The word “Nigger” was changed during that same period of American history. There are several authors and a comic that helped change this word during the 1960s. The post Civil-Rights American has a different experience and understanding with this word than those born before 1970. This work triangulates the current cultural location of the word “Nigger,” “nigga,” and “the n-word” using linguistics, law, and two media case studies. The “Nigger” trinity is a model that adds value to the discourse that surrounds this one word in post civil-rights/post 1960s America.
Date: December 2011
Creator: Bell, Adrian Shane
System: The UNT Digital Library
Student reflections as artifacts of self-regulatory behaviors for learning: A tale of two courses. (open access)

Student reflections as artifacts of self-regulatory behaviors for learning: A tale of two courses.

The rapid growth of online and blended learning environments in both higher education and K-12, along with the development of innovative game based, narrative driven, problem-based learning (PBL) systems known as Alternate Reality Games (AltRG), has led to the need to understand student’s abilities to self-regulate their learning behaviors and practices in these novel environments. This study examines student reflections and e-mails related to self-regulatory practices for learning across two different course designs for an Internet-based course in computer applications. Both designs leverage PBL but apply different levels of abstraction related to content and the need to self-regulate. The study looked specifically at how students communicated about learning across these environments, what student communications indicated about student readiness for university online learning and how instructional design and methods of instruction shaped student expressions of learning and self-regulation. The research design follows an ethnographic and case study approach as two designs and four sections are examined. Data was collected from student blog posts, email messages and semi-structured interviews. Atlas.TI was used to code the data using constant comparative analysis. A sequential analysis was applied using an a priori structure for self-regulation and post hoc analysis for emergent codes that resulted in …
Date: December 2011
Creator: Bigenho, Christopher William
System: The UNT Digital Library
The Compositional Transformation and Musical Rebirth of Leo Ornstein (open access)

The Compositional Transformation and Musical Rebirth of Leo Ornstein

This study focuses on the transformation of Leo Ornstein’s (1893-2002) musical language of his early years into the strikingly different approach found in his later years. Ornstein’s initial radical compositions from the mid-1910s were no doubt representative of the direction in which modern music was moving. Despite the intense fame and notoriety of his early works, Ornstein did not feel connected to the trends of modern music development, and by the end of the 1930s he withdrew from the public scene and turned to teaching. By the 1950s Ornstein had been almost forgotten, and in later life he became a very private person. He worked in almost total isolation composing a substantial amount of music well into his nineties, and died at the age of 109. The music of Ornstein’s “second life” is very different from the initial works of his early years, and most of it is unknown to the public and should be brought into scholarly light, especially since Ornstein has been considered by historians as a pivotal figure in twentieth-century music. This study examines selected music from different stages of Ornstein’s career: Wild Men’s Dance (1913), Suicide in an Airplane (1913), Arabesques (1918), A Long Remembered Sorrow …
Date: December 2011
Creator: Bonney, Michael
System: The UNT Digital Library
Skiddy Street: Prostitution and Vice in Denison, Texas, 1872-1922 (open access)

Skiddy Street: Prostitution and Vice in Denison, Texas, 1872-1922

Prostitution was a rampant and thriving industry in late nineteenth and early twentieth century Texas. Due to the arrival of the M.K. and T. Railroad, the city of Denison became a frontier boomtown and prostitution as well as other vice elements grew alongside the town. Skiddy Street was one road south of Main Street in Denison and housed the most notorious brothels and saloons in the city. In the late nineteenth century, few national laws were present to regulate red-light districts and those that existed were largely ignored. Economically, prostitution was an important addition to the coffers of cities such as Denison, and through taxing and licensing of prostitutes, city leaders profited off of the vice industry. The early decades of the twentieth century led to changes in the toleration of prostitution and red-light districts on the national level. Progressive reform movements, temperance, World War I, and the National Railroad Shopmen’s strike, each contributed to the dissolution of Skiddy Street in Denison as toleration and open acceptance of prostitution waned. This study attempts to understand how and why prostitution thrived during Denison’s early frontier days, who some of the prostitutes were that plied their trade on Skiddy Street, and how …
Date: December 2011
Creator: Bridges, Jennifer
System: The UNT Digital Library
Quantitative EEG Analysis of Patients with Chronic Pain: An Exploratory Study (open access)

Quantitative EEG Analysis of Patients with Chronic Pain: An Exploratory Study

This study examined quantitative EEGs of six individuals with chronic pain and compared them to an age- and gender-matched normative database of healthy control subjects in an attempt to discern whether a particular pattern of resting state EEG activity is associated with chronic pain. In the chronic pain group, significantly reduced absolute power was seen in delta and theta bandwidths at frontal sites in the eyes-closed condition. In the eyes-open condition, significantly reduced absolute power was seen in delta, theta, and alpha bandwidths at frontal, central, and temporal sites, and increased relative high beta power was seen in the parietal region. Reduced theta/high beta and delta/high beta ratios were seen in the parietal region. Quantitative EEG neuromarkers of chronic pain are suggested.
Date: December 2011
Creator: Burroughs, Ramona D.
System: The UNT Digital Library
Noctilucent (open access)

Noctilucent

This dissertation is composed of two parts. Part I discusses the evolution of meditative poetry as a genre, with a particular emphasis on the influence of women poets and feminist critical theory. Part II is a collection of poems. Although several popular and critically-acclaimed poets working today write meditative poems, meditative poetry as a genre has not been systematically examined since M.H. Abrams’s essay on the meditative mode in Romantic poetry, “Structure and Style in the Greater Romantic Lyric.” Because one of the driving forces of meditative poetry is a longing for, or recognition of, a state of perception that lies between individual being and some form of universal ordering principle, meditative poetry might seem to be antithetical to a postmodern world that is fragmentary, contingent, and performative; indeed, earlier definitions of meditative poetry, tied to historical and cultural understandings of the individual and the Universal, no longer reflect “how we know” but only “how we knew.” However, this essay argues that there is a contemporary meditative structure that allows for a continued relationship between the individual and the Universal without resorting to the essentialism implicit in the genre as traditionally described. This new structure owes much to feminist theory, …
Date: December 2011
Creator: Bush, Mary Gwen
System: The UNT Digital Library
Assessment of Transportation Emissions for Ferrous Scrap Exports from the United States: Activity-Based Maritime Emissions Model and Theoretical Inland Transportation Model. (open access)

Assessment of Transportation Emissions for Ferrous Scrap Exports from the United States: Activity-Based Maritime Emissions Model and Theoretical Inland Transportation Model.

Industrial ecology is a field of study that encourages the use of closed-loop material cycles to achieve sustainability. Loop closing requires the movement of materials over space, and has long been practiced in the iron and steel industry. Iron and steel (ferrous) scrap generated in the U.S. is increasingly exported to countries in Asia, lengthening the transportation distance associated with closing the loop on the iron and steel life cycle. In order to understand the environmental cost of transporting this commodity, an activity-based maritime transportation model and a theoretical in-land transportation model are used to estimate emissions generated. Results indicate that 10.4 mmt of total emissions were generated, and emissions increased by 136 percent from 2004 to 2009. Increases in the amount of emissions generated are due to increases in the amount of scrap exported and distance it is transported.
Date: December 2011
Creator: Caldwell, Amanda
System: The UNT Digital Library
Lone Star Booster: The Life of Amon G. Carter (open access)

Lone Star Booster: The Life of Amon G. Carter

Abstract Though a very influential Texan during the first half of the twentieth century, Amon Carter has yet to receive a full scholarly treatment, a problem which this dissertation attempts to rectify by investigating the narrative of Carter’s life to see how and why he was able to rise from humble beginnings to become a powerful publisher who symbolized boosterish trends within Texas and the New South. Publisher of the Fort Worth Star-Telegram, philanthropist, oilman, and aviation supporter, Carter used his power and influence to become a leading booster of his city and region seamlessly making the transition from being a business progressive to New Deal supporter to an Eisenhower Democrat. His connections with corporations like American Airlines and General Motors helped bring aviation and industry to his region, and his ability to work with public and private entities helped inspire his failed attempt to make the Trinity River navigable up to Fort Worth. His own success at building the Star-Telegram into the largest circulating newspaper in Texas encouraged him to expand his media empire into radio and television, while the wealth he gained from his oil activities enabled him to form a philanthropic foundation that would provide support for …
Date: December 2011
Creator: Cervantez, Brian
System: The UNT Digital Library