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Rachmaninoff's Trio Elegiaque, Op 9: A Performer's Guide, Elisa Braga Galeano
Rachmaninoff's Trio Elegiaque, Op 9: A Performer's Guide, Elisa Braga Galeano
LSU Doctoral Dissertations
This document and the accompanying lecture/recital performance aim to call more attention to this intense and deeply emotional work. Focus will be placed on the technical challenges in the piano part while making recommendations for the performer when appropriate. As background, an overview of Rachmaninoff’s early life and work is presented in order to provide a clearer understanding of what led him to compose this trio. Of particular importance in the writing of this piece was the direct influence of Peter Tchaikovsky’s Trio, Op 50, which will also figure prominently in the background discussion.
Dynamics Of Resprouting And Forest Regeneration Following Anthropogenic Land Use In The Central Amazon Basin, Scott Lawrence Kosiba
Dynamics Of Resprouting And Forest Regeneration Following Anthropogenic Land Use In The Central Amazon Basin, Scott Lawrence Kosiba
LSU Doctoral Dissertations
Tree mortality is increasing with the effects of climate change and drought across the Amazon Basin while intense fires are becoming more prevalent. Tropical moist forest trees generally lack adaptations that protect against mortality during an intense fire, so anthropogenic burning typically kills high percentages of trees. Following disturbances where prescribed burning is used to limit woody encroachment and to fertilize the soil, abandoned land in central Amazonia becomes dominated by the pioneer tree genus, Vismia. Although the mechanisms by which Vismia comes to dominate previously-burned areas are not known, previous studies on anthropogenic land use and forest succession …
Discovering Potential Protein, Carbohydrate, And Lipid Based Food Ingredients In A Co-Culture Of Microalgae, Chelsea Tyus
Discovering Potential Protein, Carbohydrate, And Lipid Based Food Ingredients In A Co-Culture Of Microalgae, Chelsea Tyus
LSU Doctoral Dissertations
Louisiana Native Co-Culture of Microalgae (Chlorella Vulgaris L. and Cyanobacteria Leptolyngbya sp.) (CCA) was studied. CCA is a viable coculture for further investigation as a food component. This research characterized the proteins, carbohydrates, and lipids present in CCA. Algae cultivation parameters were controlled and analyzed. Treatment (Trt) 1 was CCA grown in cultures exposed to average scalar irradiance (ASI) of 1041 ± 269.18 μmol m-2 s-1 PAR and trt 2 was CCA grown in cultures exposed to ASI of 430 ± 96.03 μmol m-2 s-1 PAR. The trt (irradiance exposure) had the desired response on CCA species ratio Trt …
Genetic Analyses Of Male Sterility And Wide Compatibility In U.S. Hybrid Rice Breeding Lines, Christian Torres De Guzman
Genetic Analyses Of Male Sterility And Wide Compatibility In U.S. Hybrid Rice Breeding Lines, Christian Torres De Guzman
LSU Doctoral Dissertations
Two line hybrid rice breeding is widely used in Asia and involves the use of environmentally-sensitive male sterile lines to achieve high grain yields compared to pure line varieties. Currently, there is limited information concerning the performance and inheritance of two indica male sterile lines 2008S and 2009S under U.S. field conditions. The first objective of the research herein was to characterize genetic male sterility of lines 2009S and 2008S under controlled environment conditions. Results showed that 2009S exhibited a thermosensitive response whereas little or no response was observed with changes in daylength. Furthermore, high pollen fertility was achieved at …
Direct Measurements Of Nuclear Reactions In Hot Stellar Environments, Kevin Thomas Macon
Direct Measurements Of Nuclear Reactions In Hot Stellar Environments, Kevin Thomas Macon
LSU Doctoral Dissertations
Understanding the origins of intermediate mass nuclei requires accurate knowledge of nuclear reaction rates. This thesis addresses two projects targeting measurements of nuclear cross sections relevant in hot astrophysical environments. Direct measurements of neutron capture on 67Zn and 68Zn were performed using the Detector for Advanced Neutron Capture Experiments (DANCE) at the Los Alamos Neutron Science Center (LANSCE). A new 68Zn(n,&gamma) cross section in the neutron energy range from 150 eV to 850 keV and Maxwellian-Averaged Cross Sections from 20 keV-100 keV are presented along with the details of the analysis. These reaction rates are important for …
A Performance Guide For Thomas Pasatieri's Bel Canto Songs For Voice And Piano, Amy Robin Porter
A Performance Guide For Thomas Pasatieri's Bel Canto Songs For Voice And Piano, Amy Robin Porter
LSU Doctoral Dissertations
This document is a performance guide to Thomas Pasatieri’s Bel Canto Songs for Voice and Piano. Thomas Pasatieri is a well-known American art song and opera composer, who has also worked extensively as a film score orchestrator for major movie titles. The poet for the text in Bel Canto Songs is English poet, engraver, and artist William Blake, who lived from the mid-Eighteenth century into the Nineteenth century. Chapter One discussed the life and compositional style of Pasatieri. Chapter Two details Blake’s life, writing style, and major themes of his work. Chapter Three provides background information on Bel Canto Songs, …
Coastal Ecosystem Resiliency After Major Disturbances, Giovanna Mcclenachan
Coastal Ecosystem Resiliency After Major Disturbances, Giovanna Mcclenachan
LSU Doctoral Dissertations
Disturbances are a common occurrence in coastal ecosystems and can provide opportunity for adaptation and renewal in healthy systems; hurricanes bring mineral accretion to a marsh, floods provide a pulse of freshwater and nutrients to estuaries, and fires increase species diversity and abundance in forests. Humans, however, have depleted the resiliency of many coastal systems via top down and bottom up mechanisms, leaving these ecosystems more vulnerable to both natural and anthropogenic disturbances. Louisiana’s wetlands have been modified for centuries via canals, levees, agricultural impoundments, etc., leading to a decreased resiliency to land loss. The Deepwater Horizon (DWH) oil spill …
Theory And Utility Of The Three Isotope Fractionation Relationship, Justin Alan Hayles
Theory And Utility Of The Three Isotope Fractionation Relationship, Justin Alan Hayles
LSU Doctoral Dissertations
The field of isotope geochemistry began with the study of oxygen isotope geothermometry, most famously for carbonates. Traditionally oxygen isotope studies are only concerned with the relationship between one rare isotope, oxygen-18, and the common isotope, oxygen-16. In these cases, the abundance of the third stable isotope, oxygen-17 is ignored because for almost all terrestrial processes the 17O-16O relationship roughly scales with the 18O-16O relationship through a fractionation processes and is thought to not provide any new information. However, the discovery of large “mass independent” isotope effects for ozone chemistry has driven a multitude of uses for triple isotope relationships. …
Student Internalizing Behavior Screener And Student Externalizing Behavior Screener: An Analysis Of Reliability, Validity, And Usability In Elementary School Populations, Kelsey Lynn Hartman
Student Internalizing Behavior Screener And Student Externalizing Behavior Screener: An Analysis Of Reliability, Validity, And Usability In Elementary School Populations, Kelsey Lynn Hartman
LSU Doctoral Dissertations
Universal screening for emotional and behavioral risk in schools facilitates early identification and intervention for students as part of multitiered systems of support. Because early intervention has the potential to mitigate adverse outcomes of emotional and behavioral disorders and schools are prime locations to reach at-risk youth, research on the technical adequacy and usability of universal screeners to identify students for available school-based supports is vital. The purpose of this study was to extend existing research by Cook et al. (2011) and Cook, Volpe, and Gresham (2012) on the technical adequacy and usability of two universal screening measures, the Student …
Idling Women: The Domestic Bildungsroman And The American City, 1830-1900, Jordan L. Von Cannon
Idling Women: The Domestic Bildungsroman And The American City, 1830-1900, Jordan L. Von Cannon
LSU Doctoral Dissertations
In Idling Women: The Domestic Bildungsroman and the American City, 1830-1900, I explore urban narratives of female non-development. In city novels featuring female protagonists, there are two normative arcs of development: either women find new opportunities for marriage, work, and, in some cases, independence in the city, or they fall prey to threats of seduction, poverty, and even death. However, these two plotlines fail to accommodate stories of women who wait to develop, fail at it, or otherwise resist what might be considered character growth. By problematizing distinctions between idleness and the American “work ethic” often tied to the industrialized …
Competencies Of Outstanding Executive Coaches: A Grounded Theory Approach, Kent Mayo Blumberg
Competencies Of Outstanding Executive Coaches: A Grounded Theory Approach, Kent Mayo Blumberg
LSU Doctoral Dissertations
The personal, business, and executive coaching industry is large and growing. In spite of the size and growth of the industry, the coaching research literature reveals a lack of understanding about the competencies of outstanding executive coaches. This grounded-theory study sought to discover a model of executive coach competencies, through in-depth interviews with coaches rated as outstanding by a large purchaser of coaching services. Sixteen coaches participated in the recorded and transcribed interviews. A line-by-line analysis of the transcripts led to a competency model for executive coaching. For the coaching research community, this study will fill a key gap in …
The Influence Of Enrollment In Career And Technical Education Courses On The Achievement Of High School Special Education Students, Melinda Simoneaux Partin
The Influence Of Enrollment In Career And Technical Education Courses On The Achievement Of High School Special Education Students, Melinda Simoneaux Partin
LSU Doctoral Dissertations
This dissertation joins a conversation in the special education arena about the academic and vocational agenda for special education high school students. It explores the influence of enrollment in Career Technical Education (CTE) courses on the achievement of high school special education (SPED) students. The purpose of this study was to compare the achievement of special education (SPED) students enrolled in Career Technical Education (CTE) courses with special education (SPED) students who were not enrolled in Career Technical Education (CTE) courses. The study was designed to determine whether or not SPED students enrolled in CTE improved on the academic scores …
Fear No Evil: Making Sense Of Intersectionality And Fear Of Crime Amongst Blacks In High Crime Neighborhoods, Melinda Jackson
Fear No Evil: Making Sense Of Intersectionality And Fear Of Crime Amongst Blacks In High Crime Neighborhoods, Melinda Jackson
LSU Doctoral Dissertations
The extant literature on fear of crime has relied almost entirely upon quantitative data and was criticized as atheoretical due to its focus on the demographic characteristics associated with vulnerability. Emerging qualitative research on fear of crime has begun to overcome this limitation by drawing upon an intersectional lens, but quantitative assessments have yet to fully incorporate this theoretical development. The current study addresses this limitation by analyzing qualitative data collected through semi-structured interviews and quantitative data collected as part of a large-scale survey. The primary goal of this dissertation is to take an intersectional approach to understand the relationships …
Extracting Physically Realistic Pore Network Features From Xct Data And Investigating The Impact Of Pore Topology On Flow In Porous Media, Godfrey Mills
LSU Doctoral Dissertations
Synchrotron XCT imaging approaches applied in this study provides crucial information on the impact of image voxel resolution on image based simulation results and the characteristic length scales that can be extracted from XCT image data sets. The methods and results in this work provides a holistic approach in generating reliable and representative porous media flow and transport properties via image processing and pore scale simulations through XCT image data sets of porous media. This study also shows how XCT imaging, coupled with pore topological and morphological measures can be utilized in quantifying the differences, and/or similarities between a 2.5D …
Molecular Simulation Study Of Oil Hydrocarbons, Dispersants And Other Organics In Atmospheric Air/Water Interfaces, Zenghui Zhang
Molecular Simulation Study Of Oil Hydrocarbons, Dispersants And Other Organics In Atmospheric Air/Water Interfaces, Zenghui Zhang
LSU Doctoral Dissertations
The main objective of this dissertation is to study the interfacial properties of organic contaminants, in particular green leaf volatiles (GLVs), oil hydrocarbons [mainly intermediate-volatile organic compounds (IVOCs) and semi-volatile organic compounds (SVOCs)], as well as surfactant species (i.e. DOSS and Span 80) from Corexit dispersants at atmospheric air/water and air/seawater interfaces. All these compounds can significantly contribute to the formation of secondary organic aerosols (SOAs). Furthermore, our simulation work on IVOCs, SVOCs and Corexit surfactants, combining with experiments from the Valsaraj group, suggests that these compounds can be adsorbed on the surface of seawater droplets and aerosolized into the …
Exploring The Relationship Between Long-Term Memory And Attention Through Attentional Templates, Rebecca Rose Goldstein
Exploring The Relationship Between Long-Term Memory And Attention Through Attentional Templates, Rebecca Rose Goldstein
LSU Doctoral Dissertations
It is assumed that the contents of visual working memory (VWM) guide attention. This notion has been challenged by work which has demonstrated that multiple searches for the same target changes contralateral delay activity (CDA), an event-related potential that is the putative marker of the amount of information maintained in VWM. It has been suggested that the disappearance of the CDA with an invariable target marks the transfer of the attentional template from VWM storage to long-term memory (LTM) storage. Therefore, LTM may guide attention in many situations where it has previously been assumed that VWM guides attention. However, while …
A Direct Study Of 20ne(Alpha,P)23na With The Helical Orbit Spectrometer (Helios), Jianping Lai
A Direct Study Of 20ne(Alpha,P)23na With The Helical Orbit Spectrometer (Helios), Jianping Lai
LSU Doctoral Dissertations
Type Ia Supernovae are thermonuclear explosions that occur on CO white dwarfs in binary systems, completely disrupting the system. While the exact progenitor of these events is unclear, there have been several studies exploring the nucleosynthesis that drives these stellar explosions. These studies have shown that a handful of reactions have a significant effect on Type Ia Supernova nucleosynthesis, specifically 12C(alpha, gamma), 12C+12C, 20Ne(alpha, p), 20Ne(alpha, gamma), and 30Si(p, gamma). While the 20Ne(alpha,p)23Na reaction has been shown to be one of the five most influential reactions, it has not been directly been measured at astrophysically relevant energies. We performed direct …
Amblyomma Maculatum Immunomodulation In Mammalian Models Of Rickettsia Parkeri Rickettsiosis, Kaikhushroo Hormazd Banajee
Amblyomma Maculatum Immunomodulation In Mammalian Models Of Rickettsia Parkeri Rickettsiosis, Kaikhushroo Hormazd Banajee
LSU Doctoral Dissertations
Rickettsia parkeri is an emerging human pathogen and spotted fever group Rickettsia that is transmitted via Amblyomma maculatum (the Gulf Coast tick) in the United States. Since these ticks must feed for several days in order to molt to the next life cycle, they must be able to counteract the host immune response. Despite this fact, there have been few studies that evaluate the immunomodulatory effect of this vector and the resultant influence on rickettsial disease. The hypothesis of this research is that, if A. maculatum feeding modifies the host immune response, this immunomodulation will enhance disease caused by R. …
Modelling Hydraulic Fracturing Propagation In Heterogeneous Reservoirs Using Cohesive Zone Methods, Miguel Alejandro Gonzalez-Chavez
Modelling Hydraulic Fracturing Propagation In Heterogeneous Reservoirs Using Cohesive Zone Methods, Miguel Alejandro Gonzalez-Chavez
LSU Doctoral Dissertations
The recent success in exploiting low permeability shale reservoirs has heavily relied on hydraulic fracturing to produce hydrocarbons economically in disadvantaged reservoir conditions. Although horizontal drilling significantly increases the contact area between the wellbore and the reservoir, the objective of hydraulic fracturing is set on creating further expanded conductive flow paths into the reservoir. This research uses cohesive zone method to numerically simulate hydraulic fracture propagation in the presence of natural fractures in two- and three-dimensional model. The Cohesive element approach limits fracture propagation to some predefined paths. However, in highly fractured formations since hydraulic fractures are growing through a …
Mexican Rice Borer (Eoreuma Loftini) Pheromone Trap Efficacy And Role In Invasive Species Monitoring And Pest Management, Blake Emerson Wilson
Mexican Rice Borer (Eoreuma Loftini) Pheromone Trap Efficacy And Role In Invasive Species Monitoring And Pest Management, Blake Emerson Wilson
LSU Doctoral Dissertations
The Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), is an invasive pest of sugarcane, Saccharum spp.; rice, Oryza sativa; and other graminaceous crops along the U.S. Gulf Coast. Identification of E. loftini sex pheromones led to the development of pheromone baited traps. Studies were conducted to determine strategies for the use of E. loftini pheromone traps in invasive species monitoring and pest management. A two-year field study demonstrated that E. loftini pheromone traps attract males from distances of up to 100m. A behavioral assay observed that detection of the pheromone by E. loftini males occurs at ≈48m from the …
Dynamic Resonant Scattering Of Near-Monochromatic Fields, Gayan Shanaka Abeynanda
Dynamic Resonant Scattering Of Near-Monochromatic Fields, Gayan Shanaka Abeynanda
LSU Doctoral Dissertations
Certain universal features of photonic resonant scattering systems are encapsulated in a simple model which is a resonant modification of the famous Lamb Model for free vibrations of a nucleus in an extended medium. We analyze this "resonant Lamb model" to garner information on dynamic resonant scattering of near-monochromatic fields when an extended system is weakly coupled to a resonator. The transmitted field in a resonant scattering process consists of two distinct pathways: an initial pulse (direct transmission) and a tail of slow decay (resonant transmission). The resonant Lamb model incorporates a two-part scatterer attached to an infinite string with …
Founding A Historically Latino/Caribbean-Serving Institution: An Archival Research Study On Florida International University, Amaris Del Carmen Guzmán
Founding A Historically Latino/Caribbean-Serving Institution: An Archival Research Study On Florida International University, Amaris Del Carmen Guzmán
LSU Doctoral Dissertations
Employing an archival research approach, this study explores the formation of Florida International University (FIU) in Miami, Florida. As one of the few institutions to open its doors with a specific mission to promote greater international understanding, this study explores diasporic migration and community formation in efforts to challenge the U.S. federally designated phrase of Hispanic-serving Institutions (HSIs) and acknowledge those HSIs who have historically served Latino and Caribbean populations. The author defined FIU as a Historically Latino/Caribbean-serving institution based on the transnational Latino and Caribbean cultural community formation in southeast Florida between the mid-1960s and mid-1970s. Specifically, this dissertation …
Biological Invasions: Biogeography And Multitrophic Interactions, Warwick Allen
Biological Invasions: Biogeography And Multitrophic Interactions, Warwick Allen
LSU Doctoral Dissertations
Species interactions play a prominent role in the establishment and spread of many invasive species. However, rarely are invasions studied in more than a direct pairwise species context, or with consideration to how species interactions can vary biogeographically. I used field surveys combined with common garden and greenhouse experiments to investigate how multitrophic above- and belowground interactions influence plant invasions at large spatial scales. I focused on comparisons between sympatric native and invasive lineages of Phragmites australis, a wetland grass distributed throughout North America. I conducted a field survey to examine support for the enemy release hypothesis in a tritrophic …
Numerical Modeling Of Wetland Hydrodynamics, Agnimitro Chakrabarti
Numerical Modeling Of Wetland Hydrodynamics, Agnimitro Chakrabarti
LSU Doctoral Dissertations
Wave induced erosion accounts for as much as 26% of landloss in coastal Louisiana. This dissertation work, focuses on answering research questions relevant to the design of two shoreline protection methods (a) vegetated wetlands and (b) nearshore breakwaters. Two types of numerical models are used - the three-dimensional (3D) Navier Stokes Equation for small to medium scale experiments and a depth integrated, fully non-linear Boussinesq model for dispersive waves for larger, field scale studies. The former model provides insights into the 3D hydrodynamics of wave interaction with vegetation canopies and breakwaters, while the latter model focuses on the horizontal two …
Studies On Development Of End Rot In Sweetpotato, Ratchanee Pattaravayo
Studies On Development Of End Rot In Sweetpotato, Ratchanee Pattaravayo
LSU Doctoral Dissertations
End rot development in sweetpotato is caused by several pathogens and exacerbated by unfavorable environments. A critical need exists to know what factors in the environment trigger end rot development and how to manage the crop to minimize the incidence of end rots which are the overall objectives of this study. This research was divided into three studies: 1) Effect of environmental factors on expression of end rot in sweetpotato roots. Factorial combinations consisted of flooding/non-flooding; skinned/non-skinned; cured/non-cured; recommended storage/ambient storage are environmental variables not tested previously together in a systematic way. Results showed that curing at 29oC and 85-90% …
A Background, Analysis, And Performance Guide For Eugene Goossens's Concerto In One Movement For Oboe And Orchestra, Grace Ellen Woodworth
A Background, Analysis, And Performance Guide For Eugene Goossens's Concerto In One Movement For Oboe And Orchestra, Grace Ellen Woodworth
LSU Doctoral Dissertations
Sir Eugene Goossens (1893-1962) was a leading English composer and conductor of the early twentieth century. Though his music is relatively unknown today, at the height of his popularity as a composer in the 1920s and 30s, Goossens’ music was considered equal to that of British contemporaries Ralph Vaughan Williams, Benjamin Britten, Malcolm Arnold, Arnold Bax, and Gordon Jacob. A public scandal towards the end of his career resulted in his works falling into relative obscurity, with the exception of his oboe concerto. Despite the concerto’s popularity within the oboe community, few in-depth studies of the work exist. This monograph …
On The Degradation Of Lubricating Grease, Asghar Rezasoltani
On The Degradation Of Lubricating Grease, Asghar Rezasoltani
LSU Doctoral Dissertations
A comprehensive literature review on physical and chemical degradation monitoring and life estimation models for lubricating greases is presented in chapter one. Degradation mechanisms for lubricating grease are categorized and described, and an extensive survey of the available empirical and analytical grease life estimation models including degradation monitoring standards and methods are presented. In chapter two, irreversible thermodynamic theory is employed to study the mechanical degradation of lubricating grease. A correlation between the mechanical degradation and entropy generation is established and the results are verified experimentally using a rheometer, a journal bearing test rig, and a modified grease worker machine. …
Effects Of Pitch And Rhythm Priming Tasks On Accuracy And Fluency During Sight-Reading, Christine Renee Russell
Effects Of Pitch And Rhythm Priming Tasks On Accuracy And Fluency During Sight-Reading, Christine Renee Russell
LSU Doctoral Dissertations
Given the prevalent use of sight-reading in the classroom, at music festivals, and in audition procedures, it is important to know the most effective practices in preparing students to sight-read musical excerpts. Previous studies suggest that rhythm accuracy is a significant indicator of sight-reading ability. However, others have observed a possible influence of pitch on the performance of rhythm. In an effort to better understand that relationship, the purpose of this study was to investigate the effects of pitch and rhythm priming tasks on sight-reading accuracy and fluency. High school wind instrumentalists (N=182) sight-read selected stimulus exercises from the Watkins-Farnum …
Testing The Asset-Based Theory Of American Social Welfare: Does A Future-Orientation Mediate The Relationship Between Asset-Ownership And Financial Responsibility?, Louie Fletcher Bickham Iii
Testing The Asset-Based Theory Of American Social Welfare: Does A Future-Orientation Mediate The Relationship Between Asset-Ownership And Financial Responsibility?, Louie Fletcher Bickham Iii
LSU Doctoral Dissertations
The ownership of financial assets protects American households from experiencing the struggles of income poverty. The asset-based theory of American social welfare, which was conceptualized by Professor Michael Sherraden in 1991 and amended in 2001 by other scholars, posited that social welfare programs diminish the prevalence of poverty by enabling households to save funds to purchase assets. This theory has been scantly tested—especially among American households—despite a great amount of funds being invested into programs designed to help low-income American households to build assets. The only previous study that examined the intermediary role of future-orientations on the effect of asset-ownership …
The Ability Of Bull And Stallion Thawed Spermatozoa Refrozen Without Cryoprotectants To Activate Intra- And Interspecies Oocytes, Jose Len Yin
LSU Doctoral Dissertations
Semen cryopreservation has allowed the establishment of genome banks and the large scale propagation of species. The development of simple techniques to cryopreserve semen or alternatives to efficiently use cryopreserved semen from males of valuable genetics that have become infertile will permit continuous propagation of the genetics from these males and may serve as a model for preservation and propagation of endangered species. Sperm cryopreservation without cryoprotectants is a simple process, and offspring have been produced following intracytoplasmic sperm injection (ICSI); however the ability of frozen-thawed sperm refrozen without the addition of cryoprotectants to activate oocytes following ICSI was unknown. …