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  Partner: UNT Libraries
 Resource Type: Thesis or Dissertation
 Decade: 2010-2019
Habitat Fragmentation by Land-Use Change: One-Horned Rhinoceros in Nepal and Red-Cockaded Woodpecker in Texas

Habitat Fragmentation by Land-Use Change: One-Horned Rhinoceros in Nepal and Red-Cockaded Woodpecker in Texas

Date: December 2010
Creator: Thapa, Vivek
Description: This research focuses on the spatial analysis of the habitat of two vulnerable species, the one-horn rhinoceros in the grasslands of southern Nepal, and the red-cockaded woodpecker in the Piney woods of southeast Texas, in the USA. A study sites relevant for biodiversity conservation was selected in each country: Chitwan National Park in Nepal, and areas near the Big Thicket National Preserve in Texas. Land-use differs in the two study areas: the first is still undergoing agrarian development while the second is in a technological phase and undergoing urbanization processes. Satellite remote sensing images were used to derive land-cover maps by supervised classification. These maps were then processed by Geographic Information Systems methods to apply habitat models based on basic resources (food and cover) and obtain habitat suitability maps. Several landscape metrics were computed to quantify the habitat characteristics especially the composition and configuration of suitable habitat patches. Sensitivity analyses were performed as the nominal values of some of the model parameters were arbitrary. Development potential probability models were used to hypothesize changes in land-use of the second study site. Various scenarios were employed to examine the impact of development on the habitat of red-cockaded woodpecker. The method derived in ...
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Hand Amputees have an Altered Perception of Images at Arm's Length

Hand Amputees have an Altered Perception of Images at Arm's Length

Access: Use of this item is restricted to the UNT Community.
Date: May 2010
Creator: Irizarry, Justin Lee
Description: The preface to this collection "Dust Clouding: Ambiguity and the Poetic Image," highlights the ways in which poets such as W.S Merwin and Donald Revell use ambiguity and the poetic image to strengthen their poems and encourage equality between reader and writer. Hand Amputees have an Altered Perception of Images at Arm's Length is a collection of poems and poem like adventures.
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Hardware Implementation Of Conditional Motion Estimation In Video Coding

Hardware Implementation Of Conditional Motion Estimation In Video Coding

Date: December 2011
Creator: Kakarala, Avinash
Description: 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.
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Harmony Or Discord: Disordered Eating and Personality Traits of College Music Majors

Harmony Or Discord: Disordered Eating and Personality Traits of College Music Majors

Date: August 2012
Creator: DiPasquale, Laura D.
Description: Personality traits, such as neuroticism, perfectionism, and a narrow self-concept have been identified as risk factors for eating disorders or have been found at higher rates in those with eating disorders (e.g., Brannan & Petrie, 2008; Cash & Deagle, 1997; Cervera et al., 2003). Musicians exhibit many of these personality traits associated with eating disorders (e.g., Kemp, 1981), however eating disorder prevalence has not been studied in musicians. The present study examined the prevalence of eating disorders and pathogenic weight control behaviors among college music majors. This study also compared personality traits (i.e., neuroticism, perfectionism, musician identity) between music majors and nonmajors and examined which personality traits best predicted bulimic symptomatology. Participants were 93 female and 126 male undergraduate students majoring in music and a nonmusician comparison group of 310 women 140 men from the same university. Music majors and nonmajors did not differ from each other with regards to eating disorder prevalence rates. Exercising and fasting/strict dieting were the primary means of weight control amongst all participants. With regards to personality traits, female and male music majors reported higher levels of perfectionism than their nonmajor counterparts and male music majors reported higher levels of neuroticism than male nonmajors. After ...
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Harold Shapero’s Sonata for C Trumpet and Piano: the Influence of Idiomatic Jazz Elements on a Prominent Mid-20th Century Neo-classical Composer

Harold Shapero’s Sonata for C Trumpet and Piano: the Influence of Idiomatic Jazz Elements on a Prominent Mid-20th Century Neo-classical Composer

Date: August 2013
Creator: Whalen, Kevin Patrick
Description: Harold Shapero’s Sonata for Trumpet in C and Piano is a significant work that it is rarely performed and studied. Shapero’s composition contains musical attributes that demand artistically accurate choices if the style of this jazz-influenced sonata is to be achieved. Written in 1940 in dedication to Aaron Copland, the Sonata for C Trumpet and Piano makes use of a variety of stylistic influences, blending those of early 20th century jazz with Stravinsky-influenced neo-classicism. The intent of this study is to examine the unique performance practice implications and musical considerations of Harold Shapero’s Sonata for C Trumpet and Piano in correlation to the composer’s implementation of jazz idiomatic elements within the constructs of neo-classicism. The first section of this study examines the historical context necessary for understanding the social and musical conditions of the early to mid 1940s. The second section addresses the musical elements that characterize this work; the primary focus of this section is an exploration of Harold Shapero’s implementation of jazz idioms into his first composition for trumpet. The final section of the study interprets the utilization of idiomatic jazz elements within the work so as to allow the trumpet player with little jazz experience to accurately ...
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Harrison Birtwistle: an In-depth Study of His Music for Trumpet with a Performance Guide to the Silk House Tattoo

Harrison Birtwistle: an In-depth Study of His Music for Trumpet with a Performance Guide to the Silk House Tattoo

Date: August 2013
Creator: Bonnett, Kurt L.
Description: This document examines the works by Sir Harrison Birtwistle that feature the trumpet as a solo instrument, with extra emphasis placed on The Silk House Tattoo. This document also features a performance guide for the trumpet parts of The Silk House Tattoo. Pedagogical methods for learning the most challenging passages are evaluated, and daily exercises based on the specific demands of each excerpt are offered.
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Helen Kotas (1916-200): A Female Pioneer in Major US Orchestras

Helen Kotas (1916-200): A Female Pioneer in Major US Orchestras

Date: May 2011
Creator: Thayer, Heather Leweise
Description: Helen Kotas was an accomplished musician and teacher who helped open the door for women in major US orchestras. In 1941 the Chicago Symphony hired its first female brass musician, principal hornist Helen Kotas. With that daring move, she became a pioneer for her gender in the major orchestras of North America. Despite her many contributions to the musical community, Kotas's life has not been researched and documented. This paper looks at Helen Kotas's career as well as a glimpse at her life and personality. In addition to documenting her life, this dissertation attempts to show at least a portion of Kotas's philosophy of teaching and horn playing. She was an accomplished horn soloist and studied the literature extensively. Kotas performed in the Chicago Civic Orchestra, the Woman's Symphony Orchestra, and Leopold Stokowski's All-American Youth Orchestra. Kotas was hired by Fritz Reiner as third horn of the Pittsburgh Symphony. When Frederick Stock, conductor of the Chicago Symphony Orchestra, heard that Helen Kotas was going to Pittsburgh, he insisted that she audition for the CSO. Kotas auditioned on the Concerto for Horn by Richard Strauss and the concertmaster said, "Hire her!" She performed as principal horn with the orchestra until Artur ...
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Henderson Street Bazaar and Other Stories

Henderson Street Bazaar and Other Stories

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Date: December 2010
Creator: Briseño, J. Andrew
Description: The preface, "Against Buses: Charles Baxter and the Contemporary Epiphany" deals with the epiphany as a potential ending to short stories. Baxter holds that epiphanies are trite and without purpose in today's fiction. I argue that Baxter's view, while not without merit, is limiting. Beginning with James Joyce and Katherine Anne Porter and moving to my own work, I discuss how some epiphanies, particularly false ones, can enhance rather than detract from excellent fiction. Five short stories make up the remainder of this thesis: "Dedication," "Taking it with You," "Transition to Flowers," "Profile in Courage," and "Henderson Street Bazaar."
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Hepatotoxicity of Mercury to Fish

Hepatotoxicity of Mercury to Fish

Date: August 2010
Creator: Barst, Benjamin Daniel
Description: Tissue samples from spotted gar (Lepisosteus oculatus) and largemouth bass (Micropterus salmoides) were collected from Caddo Lake. Gar and bass livers were subjected to histological investigation and color analysis. Liver color (as abs at 400 nm) was significantly correlated with total mercury in the liver (r2 = 0.57, p = 0.02) and muscle (r2 = 0.58, p = 0.01) of gar. Evidence of liver damage as lipofuscin and discoloration was found in both species but only correlated with liver mercury concentration in spotted gar. Inorganic mercury was the predominant form in gar livers. In order to determine the role of mercury speciation in fish liver damage, a laboratory feeding study was employed. Zebrafish (Danio rerio) were fed either a control (0.12 ± 0.002 µg Hg.g-1 dry wt), inorganic mercury (5.03 ± 0.309 µg Hg.g-1 dry wt), or methylmercury (4.11 ± 0.146 µg Hg.g-1 dry wt) diet. After 78 days of feeding, total mercury was highest in the carcass of zebrafish fed methylmercury (12.49 ± 0.369 µg Hg.g-1 dry wt), intermediate in those fed inorganic mercury (1.09 ± 0.117 µg Hg.g-1 dry wt), and lowest in fish fed the control diet (0.48 ± 0.038 µg Hg.g-1 dry wt). Total mercury was ...
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Hermanos De Raza: Alonso S Perales and the Creation of the Lulac Spirit

Hermanos De Raza: Alonso S Perales and the Creation of the Lulac Spirit

Date: December 2013
Creator: Mila, Brandon H.
Description: There were two great ambitions in the life of Alonso S. Perales: the first was to help his people, the Mexican-Americans; the second was to help all of mankind. To pursue this first ambition, Perales became very active as a major political leader who supported civil rights and the abolishment of racial discrimination. Many viewed him as a defender of la raza (the Mexican-American race) and one of the most influential Mexican-Americans of his time. As such, Perales devoted most of his work to defending Mexican-Americans and battling charges that Mexicans were an inferior people and a social problem. He participated in various Civil Rights organizations and was one of the founders of the League of United Latin American Citizens (LULAC). This author argues that without Perales’ involvement, LULAC would have never existed. This work solely focuses on Perales’ life from the late 1920s to the early 1930s. It begins by examining Perales’ roots and his first involvement with Mexican-American civil rights. It then covers his role in the origin of LULAC, specifically its predecessor organization, the League of Latin American Citizens. Furthermore, this work explores Perales’ involvement in the defeat of the 1930 Box Bill and his role in ...
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