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Articles 87061 - 87090 of 87723
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A Study On The Current State Of Contaminants Of Concern Research, With A Focus On Biosolids And Regulations, Maren Mariah Fulton
A Study On The Current State Of Contaminants Of Concern Research, With A Focus On Biosolids And Regulations, Maren Mariah Fulton
Civil and Environmental Engineering Master's Project Reports
Wastewater treatment plants are a major source of contaminants of emerging concern, as these facilities are the main receptors of these products via household, commercial, and industrial drains, and transport via stormwater runoff. Biosolids are composed of numerous constituents, with a number of environmentally persistent and potentially toxic contaminants of emerging concern identified as present in large concentrations. Research is needed to understand the transport and fate mechanisms of these compounds in biosolids. Additionally, this research is needed to determine a new priority framework to regulate CECs, both on the national level and regional levels. Wastewater treatment plant influent and …
Perceptions Of Criminality: An Experiment On Race, Class, And Gender Stereotypes, Patricia Davis
Perceptions Of Criminality: An Experiment On Race, Class, And Gender Stereotypes, Patricia Davis
LSU Master's Theses
The study of perceptions of criminality is significant in sociology due to its sociopolitical implications for our criminal justice system. Race, class, and gender disparities in this system influence prejudices in the American public, which in turn allows the perpetuation of inequality. Using an intersectional approach, this research seeks to interpret how race, class, and gender intersect to create and shape perceptions of criminality. Conducting an experiment on approximately 500 undergraduate students at a southern university during the Spring 2015 semester, subjects are shown a series of photographs and asked to select who, out of the individuals depicted, they believe …
Exploring Organizational Resilience Asset And Its Antecedents For Effective Internal Crisis Communication, Young Kim
LSU Doctoral Dissertations
Nowadays crises are omnipresent with daily news headlines as reminders. The public continues to see or experience many different crises that affect numerous individuals and organizations as well as society in general. Against this backdrop, corporate communication professionals, for effective crisis management, are expected to help the organizations and their leaders make decisions, as well as communicate clearly when crises arise. Considering a fast changing media environment, recent scholars have called for new approaches to crisis communication to enhance theoretical developments. They suggested that researchers should take a broader context beyond the dominant crisis communication research perspectives based on the …
Biogeography And Population Genetics On Sulawesi, Indonesia: Unrecognized Diversity In The Shrew Crocidura Elongata, Ryan Andrew Eldridge
Biogeography And Population Genetics On Sulawesi, Indonesia: Unrecognized Diversity In The Shrew Crocidura Elongata, Ryan Andrew Eldridge
LSU Master's Theses
In view of its mountainous terrain, peninsular shape, and status as an agglomeration of formerly separate landmasses, the island of Sulawesi, Indonesia, presents a fertile opportunity for examining biogeographical processes. Previous work on Sulawesi primates and amphibians suggested the existence of distinct areas of endemism (AoEs), but the relevance of these zones to a broader set of taxa has not been widely investigated, nor the reasons for their existence fully explored. Here, we use population genetic analyses of the endemic Sulawesi shrew, Crocidura elongata, to assess biogeographical partitioning according to the putative AoEs. We uncover significant cryptic diversity within C. …
Class-Related Emotions In Physical Education: A Control-Value Theory Approach, Kelly L. Simonton
Class-Related Emotions In Physical Education: A Control-Value Theory Approach, Kelly L. Simonton
LSU Master's Theses
This study investigated a model of students’ control beliefs and task value in physical education (PE). Specifically, it examined relationships among students’ perceptions of their teachers’ communication and instructional clarity, control beliefs and values toward PE, and academic emotions. High school students (N= 529) completed valid and reliable instruments assessing perceptions of teacher characteristics, control, value, enjoyment, and boredom in PE. Descriptive statistics, bivariate correlations, and internal reliability estimates were calculated. A path analysis was used to test the hypothesis that teacher communication and clarity would be related to control-value appraisals which would in turn, positively predict enjoyment or boredom. …
Masculinity And Social Change: Exploring Generative Masculinity Development In Resident Assistant Men Through The Social Change Model Of Leadership Development, Joshua David Finch
Masculinity And Social Change: Exploring Generative Masculinity Development In Resident Assistant Men Through The Social Change Model Of Leadership Development, Joshua David Finch
LSU Master's Theses
In this study, men’s identity development among Resident Assistants (RAs) at Louisiana State University is investigated using a constructivist approach. Societal expectations of men tend to value hegemonic masculinity, which reinforces a drive for dominance, objectification, and high-risk behaviors (Edwards & Jones, 2009). Whereas, generative masculinity is characterized by a sense of responsibility, desire to give back, comfort with self, willingness to confront and break gender stereotypes, and the use of personal strengths to foster wellbeing (Badaszewski, 2014). Many characteristics of generative masculinity align with the Seven C’s of Social Change as described in the Social Change Model of Leadership …
Coastal Flood Risk In A Changing Climate Along The Northern Gulf Of Mexico, Matthew Vernon Bilskie
Coastal Flood Risk In A Changing Climate Along The Northern Gulf Of Mexico, Matthew Vernon Bilskie
LSU Doctoral Dissertations
Coastal regions around the world are experiencing increased vulnerability from natural and manmade disasters. It is anticipated that coastal flood risk will increase due to the effects of climate change, and sea level rise (SLR) in particular. A dynamic, physics-based, framework to compute coastal flood inundation maps under various climate change scenarios was developed. The novel modeling system includes not only SLR, but considers future projections of shoreline evolution and primary dune morphology, upland migration of intertidal marsh, and land use land cover change. A present day hurricane storm surge model was generated for the Mississippi, Alabama, and Florida panhandle …
Jockeying For Position: Horse Racing In New Orleans, 1865-1920, Matthew Saul Perreault
Jockeying For Position: Horse Racing In New Orleans, 1865-1920, Matthew Saul Perreault
LSU Master's Theses
From 1865 to 1920, Thoroughbred horse racing matured in Louisiana, developing into a national sport shaped by the processes of modernization, professionalization, and reform. Before the onset of the Civil War, the leaders of Southern thoroughbred horse racing came from the planter elite who used African-American slave horsemen in shows of “amateur” recreation. Combining upper-class recreation with lower and middle-class entertainment, horse racing was a performance of social power. The Civil War devastated the Louisiana turf, scattering horses and men – but sportsmen proposed that post-war racing would help the state recover. The once-independent New Orleans turf joined an interconnected …
Interrelationships Among Physical Health, Health Risk Factors, Psychosocial Characteristics, And Social Support In Individuals With Major Depressive Disorder Receiving Integrated Care In Community Mental Health Settings, Blaine Stewart Masinter
Interrelationships Among Physical Health, Health Risk Factors, Psychosocial Characteristics, And Social Support In Individuals With Major Depressive Disorder Receiving Integrated Care In Community Mental Health Settings, Blaine Stewart Masinter
LSU Master's Theses
Integrated primary and behavioral health care (PBHC) programs in community mental health (CMH) settings is a topic of burgeoning interest in the current literature. These settings aim to counter the health discrepancies and inordinate mortality of persons with serious mental illness (SMI) and comorbid medical conditions. Within the SMI population, the most prevalent diagnosis is Major Depression (MDD). MDD has been well studied in the literature and has been associated with increased rates of physical health conditions. Research has correlated higher levels of social support to lower levels of psychological distress and increased physical health. This cross-sectional, descriptive study examines …
Exploring Intermedia Agenda Setting Effects Of Last Week Tonight With John Oliver, Andrew Abad
Exploring Intermedia Agenda Setting Effects Of Last Week Tonight With John Oliver, Andrew Abad
LSU Master's Theses
The HBO television program Last Week Tonight with John Oliver is a new and unique take on the typical political comedy show popularized by programs like The Daily Show and The Colbert Report. Uninterrupted by commercial breaks and with full creative control, host John Oliver and his team spend 30 minutes on Sunday nights discussing a typically underreported story at length, abandoning the monologue and interview portions reminiscent of traditional political comedy shows in favor of a long-form style investigation into a particular issue or topic. The main segment of each episode is then uploaded to the social media website, …
Succession In Family Owned Businesses: The Influence Of Succession Planning And Demographic Characteristics On Succession Success, Steven Thomas Perret
Succession In Family Owned Businesses: The Influence Of Succession Planning And Demographic Characteristics On Succession Success, Steven Thomas Perret
LSU Doctoral Dissertations
The primary purpose of this study was to determine the influence selected aspects of succession planning and selected demographic characteristics had on the level of success in the succession of family owned businesses (FOB¡¯s) in south Louisiana. To achieve this, the researcher designed a survey instrument to collect data. A total of 61 FOB¡¯s responded indicating they completed succession; however, only 23 or (38%) completed a planned succession to the next generation. An important finding was that having a high quality succession plan had a positive influence on the perceptions of family owned business owners and managers. Another important finding …
“A Voice, A Messenger” By Aaron Jay Kernis: A Performer's Guide And Historical Analysis, Pagean Marie Disalvio
“A Voice, A Messenger” By Aaron Jay Kernis: A Performer's Guide And Historical Analysis, Pagean Marie Disalvio
LSU Doctoral Dissertations
a Voice, a Messenger by Aaron Jay Kernis is a concerto for trumpet and ensemble comprising winds, brass, percussion, double basses, harp and piano. It is a contemporary 21st century work that demonstrates historical awareness and has the potential to become a noteworthy addition to the trumpet solo repertoire. Kernis’s work is challenging, rewarding, and tests the technical ability of the modern trumpeter’s agility and physical endurance without surpassing the instrument’s potential. In conjunction with my lecture recital, this document serves to expose trumpeters and other musicians to this new and significant composition. Original interviews with two of the trumpet …
Black Girl Magic: How Black Women Administrators Navigate The Intersection Of Race And Gender In Workspace Silos At Predominantly White Institutions, Allison Michelle Smith
Black Girl Magic: How Black Women Administrators Navigate The Intersection Of Race And Gender In Workspace Silos At Predominantly White Institutions, Allison Michelle Smith
LSU Doctoral Dissertations
In choosing to look at the impact of white racially homogeneous work environments, if any, in relation to Black women higher education administrators, this research was grounded in Patricia Hill Collins’ Black Feminist Thought. Utilizing Black Feminist Thought, rooted in intersectionality, provided a sturdy foundation for one interested in conducting research specific to Black women, whether the discourse is race, gender, and/or any other intersecting identities. Black Feminist Thought conveys the message that Black women have similar yet different experiences from White women and similar yet different experiences from Black men, while simultaneously having shared yet different experiences than other …
Calibration Of Resistance Factors Needed In The Lrfd Design Of Drilled Shafts, Alicia Rae Fortier
Calibration Of Resistance Factors Needed In The Lrfd Design Of Drilled Shafts, Alicia Rae Fortier
LSU Master's Theses
This report presents the reliability-based analysis of the calibration of resistance factors for the Load and Resistance Factor Design (LRFD) of axially loaded drilled shafts. AASHTO’s 2012 LRFD Bridge Design Specifications recommends various resistance factors for the design of deep foundations; however, since these values are not specific to any one region, they are very conservative. For Louisiana or Mississippi, the adoption of such recommended resistance factors could substantially increase foundation sizes. Therefore, it is necessary to develop a database of drilled shaft load tests performed in the regions of Louisiana, Mississippi, and surrounding states with similar soil conditions. Sixty-nine …
Effects Of Weather Hazards On Traffic Volume: A Case Study Focused On Atlanta, Ga, Thana-On Punkasem
Effects Of Weather Hazards On Traffic Volume: A Case Study Focused On Atlanta, Ga, Thana-On Punkasem
LSU Master's Theses
Severe weather events can have a significant impact on transportation networks. Many previous studies tried to analyze and explore the tremendous impact of extreme weather events on traffic behavior, speed, travel time and capacity. The purpose of this research was to analyze and discuss the impact of precipitation, temperature, visibility and wind speed on hourly weekday traffic flow volume in Atlanta, Georgia. This study focused on investigating which weather variables affect traffic volume, developing a machine learning based predictive technique to derive weather-traffic volume decision rules, and building a decision support tool. The correlation between extreme weather events and traffic …
Identification Of Genes Associated With Resistance To Brown Rust In Sugarcane And Prevalence Of One Major Gene, Mavir Carolina Avellaneda Barbosa
Identification Of Genes Associated With Resistance To Brown Rust In Sugarcane And Prevalence Of One Major Gene, Mavir Carolina Avellaneda Barbosa
LSU Doctoral Dissertations
Development of resistant cultivars is the main control measure against sugarcane brown rust caused by Puccinia melanocephala. Durability is uncertain, since the pathogen possesses adaptive ability to overcome host plant resistance. A differential gene expression study utilizing suppressive subtraction hybridization was conducted to improve understanding of brown rust resistance mechanisms in sugarcane. The expression patterns of 11 unigenes representing biosynthetic pathways, defense-related genes, and signaling genes were analyzed in L 99-233, a cultivar exhibiting quantitative resistance, L 01-299, a resistant cultivar with the major resistance gene Bru1, and two susceptible cultivars, Ho 95-988 and L 09-125, at 24 h, 48 …
Peptidomimetic Polymers: Advances In Monomer Design And Polymerization Methods, Brandon Andrew Chan
Peptidomimetic Polymers: Advances In Monomer Design And Polymerization Methods, Brandon Andrew Chan
LSU Doctoral Dissertations
This work is focused on the design, synthesis and characterization of polypeptide and polypeptoid polymers. The former are composed of amino acid repeat units and possess intramolecular hydrogen bonding interactions allowing for the self-assembly into well-defined secondary structures (e.g. α-helix). Polypeptoids are based on N-alkyl substituted glycine and lack intramolecular hydrogen bonding interactions, resulting in enhanced proteolytic stability and thermal processability. Physicochemical properties of polypeptoids are strongly dependent on the side chain structures, allow for control of the solubility, crystallinity, and conformation of the polymers. Well-defined polypeptides and polypeptoids are synthesized by the ring-opening polymerization (ROP) of their corresponding N-carboxyanhydride …
Circumstellar Dust Shells: Clues To The Evolution Of R Coronae Borealis Stars, Edward Joseph Montiel
Circumstellar Dust Shells: Clues To The Evolution Of R Coronae Borealis Stars, Edward Joseph Montiel
LSU Doctoral Dissertations
The existence of extended, cold dust envelopes surrounding R Coronae Borealis (RCB) stars has been known about for over 30 years. RCB stars are an exotic group of extremely hydrogen-deficient, carbon-rich supergiants that are known for their spectacular declines in brightness (up to 8 mags) at irregular intervals. There are three possible origins of these envelopes: (1) they are fossil planetary nebulae (PNe), indicating that RCB stars formed via a final Helium-shell flash; (2) they are the remnant material from the merger of a CO and a He white dwarf binary, (3) they have been constructed from dust ejection events …
Effects Of Various Seating Arrangements On Disruptive Classroom Behavior, Natalie Marie Robichaux
Effects Of Various Seating Arrangements On Disruptive Classroom Behavior, Natalie Marie Robichaux
LSU Doctoral Dissertations
Both class-wide behavioral interventions and antecedent strategies are commonly used to target disruptive behavior problems and improve classroom management. Typically, antecedent strategies precede behavioral interventions due to their proactive nature. Antecedent strategies, such as altering the classroom seating arrangement, may be more desirable to teachers than behavior interventions due to their simplicity and ability to be easily incorporated into existing routines. Past research, though limited, has demonstrated that row and column seating arrangements are associated with lower disruptions during independent work activities compared to group seating arrangements. In the first study, a multi-element design was used to compare rates of …
Internal Cooling Using Novel Swirl Enhancement Strategies In A Slot Shaped Single Pass Channel, Del Alan Segura
Internal Cooling Using Novel Swirl Enhancement Strategies In A Slot Shaped Single Pass Channel, Del Alan Segura
LSU Doctoral Dissertations
A series of heat transfer tests using a single pass slot shaped channel utilizing varying configurations of trapezoid shaped turbulence enhancement strip or varying configurations of high velocity jets issuing from side channels are studied. Thermochromatic Liquid Crystal techniques are used to determine local heat transfer coefficients, which are converted to normalized Nusselt values. The results show a marked improvement over traditional heat transfer enhancements used in the mid-span region of first stage turbine blades.
Growth Of Polycyclic Aromatic Hydrocarbons During The Supercritical Pyrolysis Of N-Decane, Subramanian Venkateswaran Kalpathy
Growth Of Polycyclic Aromatic Hydrocarbons During The Supercritical Pyrolysis Of N-Decane, Subramanian Venkateswaran Kalpathy
LSU Doctoral Dissertations
In order to serve a dual role as a propellant and as a coolant, fuels in the pre-combustion environment of future high-speed aircraft will be exposed to temperatures and pressures of up to 700 °C and 130 atm—conditions that are supercritical for jet fuels. Under such conditions, fuel can undergo pyrolytic reactions leading to the formation of polycyclic aromatic hydrocarbons (PAH), which are precursors to fuel-line solid deposits that can hinder safe operation of the aircraft. Therefore, to prevent solid deposit formation, it is extremely important to understand the PAH formation pathways in the supercritical fuel pyrolysis environment. To better …
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 …
Health Benefit Statements Affect Consumer Liking, Emotions, And Purchase Intent: A Case Of Gluten-Free, Sugar Reduced Banana Muffins, Amber Renee Jack
Health Benefit Statements Affect Consumer Liking, Emotions, And Purchase Intent: A Case Of Gluten-Free, Sugar Reduced Banana Muffins, Amber Renee Jack
LSU Master's Theses
Product information given to consumers can be used to improve food choices; however, consumers may respond differently depending on the given information. Nutritional information can serve as an instrument to positively influence healthier food choices and purchase intent. The market for gluten-free products reached $5.5 billion in 2015; however, there is a need for development of acceptable gluten-free and sugar-free products driven by consumers who are nowadays more health conscious. Muffin, a high calorie baked-good product, is very popular among consumers and known for its pleasant aroma and sweet taste qualities. There are a number of commercial gluten-free muffin products, …
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 …
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 …
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 …