Digital Commons Network^™

Immune Gene Variation And Susceptibility To Upper Respiratory Tract Disease In Gopher Tortoises, Jean Pierre Elbers

LSU Doctoral Dissertations

The immune system defends the host from bacteria, fungi, parasites, and viruses. The immune system is partially under genetic control through immune response genes, such as those of the major histocompatibility complex (MHC) whose nucleotide variation influences the host’s ability to recognize foreign pathogens and can influence disease susceptibility. Populations of threatened species generally possess low levels of genetic variation, and genetically depauperate hosts may be at greater risk of infectious disease contributing to extirpations because they also possess low immunogenetic variation. My dissertation examines the relationship between immunogenetic variation and disease susceptibility and the factors that influence innate immune …

Exploration Of Bimetallic Nickel And Cobalt Complexes For Catalytic Oxidative Cleavage Of Alkenes And Hydroformylation, Ciera Vonn Duronslet

LSU Doctoral Dissertations

The “old” bimetallic nickel complexes, meso- and rac-Ni2Cl4(et,ph-P4) were investigated as possible “catalysts” for the oxidative cleavage of alkenes using an unsaturated fatty acid, oleic acid, as the substrate. The “new” bimetallic nickel complexes with a stronger chelating tetraphosphine ligand, meso- and rac-Ni2Cl4(et,ph-P4-Ph), were also synthesized and tested for the oxidative cleavage of oleic acid. All four dinickel complexes were found to be active for the oxidative cleavage of oleic acid, producing extremely small amounts of aldehyde product. The Stanley research group also discovered the oxidative cleavage of alkenes using only the “old” et,ph-P4 tetraphosphine ligands with no metal centers. …

African-American Single Mothers' Experiences While Furthering Their Education, Kimberly Rayshun James

LSU Doctoral Dissertations

The government as expressed the importance of a post-secondary education for career advancement, and they have displayed the income increase and rate of return between post-secondary degrees and a high school diploma. Due to the benefits of income and career advancement with a post-secondary education, more women are enrolling in colleges and universities, especially African-American single mothers; however, the graduation rate with this group is low. Little research concentrated on the experiences of African-American single mothers while obtaining their post-secondary education, and more research has focused on the connection between the women and stereotypes that followed the race since slavery. …

The Bread She Earns With Her Own Hands: An Examination Of Lincoln's Political Economy, Rodolfo K. Hernandez

LSU Doctoral Dissertations

This dissertation focuses on how Abraham Lincoln’s idea of “liberty to all” affected his political thought about the intersection of government and the economy. It is a search for Lincoln’s political economy. While contemporary economists focus on a single aspect of the person such as self-interest, Lincoln following thinkers such as Francis Wayland viewed economics as a moral science. I do this by examining the speeches and deeds of Abraham Lincoln. I explore topics such as what he meant by “liberty to all”, his valuing of a commercial society over an agrarian one, and his understanding of the importance of …

Thermophysical And Thermochemical Property Measurement And Prediction Of Liquid Metal Titanium Alloys With Applications In Additive Manufacturing, Jonathan Richard Raush

LSU Doctoral Dissertations

Accurate high-temperature thermophysical property data for liquid metals and alloys are important for simulation of laser-based 3D printing processes. To understand and better control such additive manufacturing processes, knowledge of density, viscosity, and surface tension of liquid metals and alloys versus composition and temperature is needed. Likewise, thermochemical property data information regarding alloys, including chemical activities and free energies relative to composition and temperature, aid in the understanding and development of phase data important in the material design process. Vacuum electrostatic levitation (ESL) is an important technique through which both thermophysical and thermochemical property measurements can be accomplished without physical …

The Influence Of Guilt Cognitions On Taxpayers’ Voluntary Disclosures, Jonathan Farrar, Cass Hausserman, Paul Dunn

Business Faculty Publications and Presentations

Guilt is a powerful emotion that is known to influence ethical decision-making. Nevertheless, the role of guilt cognitions in influencing restorative behaviour following an unethical action is not well understood. Guilt cognitions are interrelated beliefs about an individual’s role in a negative event. We experimentally investigate the joint impact of three guilt cognitions – responsibility for a decision, justification for a decision, and foreseeability of consequences – on a taxpayer’s decision to make a tax amnesty disclosure. Tax amnesties encourage delinquent taxpayers to self-correct to avoid severe penalties that would result if their tax evasion were discovered. Our findings suggest …

Fictions Of Abundance In Early Modern Madrid: Hospitality, Consumption, And Artistic Identity In The Work Of Juan Van Der Hamen Y Leon, Carmen Ripollés

Schnitzer School of Art + Art History + Design Faculty Publications and Presentations

This article examines how still-life painting contributed to the creation of a distinct urban aristocratic culture in seventeenth-century Madrid. Focusing on a group of paintings by Juan van der Hamen, the article situates these images within the context of the picture gallery and the practice of aristocratic hospitality. By giving visual form to this new urban mode of magnificence, Van der Hamen’s still lifes created a fiction of abundance that glossed over Madrid’s economic realities. At the same time, Van der Hamen concealed signs of manual craftsmanship and commercial interest in order to advance and ennoble his own artistic identity.

Ceramic Technology, Production, And Exchange As Seen Through Macroscopic Analysis Of Pottery Fragments From The Early Horizon Center Caylán, Nepeña Valley, Peru, Michelle Nicole Miller

LSU Master's Theses

In this thesis, I examine the production, use, and decoration of ceramic vessels at the Early Horizon center of Caylán (800-1 B. C. E.) on the Peruvian North Central-Coast. Pottery sherds are artifacts ubiquitously recovered at archaeological sites, especially in sedentary agrarian societies. Most studies of ceramics in Peru have focused on typological sequences. Recently investigators in the Nepeña Valley have focused on ceramic pastes and technologies. The materials examined in this thesis were excavated from Caylán. Caylán is an incipient urban center, which developed during the Early Horizon (900-200 B. C. E.). Caylán’s dense urban core consists in 43 …

Tropospheric Ozone Prediction With Land Cover Regression In Baton Rouge, Louisiana, Mallory Nance Thomas

LSU Master's Theses

Ground level ozone (O3) is a pollutant of great public health concern. Spatial interpolation techniques provide powerful tools in estimating O3 exposure, but many fall short when predicting O3 on complex surfaces, especially given the high local variability typically associated with O3 data. Like most other locations, the Baton Rouge, Louisiana, O3 non-attainment zone (BRNZ) is plagued by a sparse density of O3 monitoring stations. This research explores land use regression (LUR) as an alternative spatial prediction method in and around the BRNZ. Multiple years of data are used to partially compensate for the small sample of spatial points. To …

Spectral Properties Of Photonic Crystals: Bloch Waves And Band Gaps, Robert Paul Viator Jr

LSU Doctoral Dissertations

The author of this dissertation studies the spectral properties of high-contrast photonic crystals, i.e. periodic electromagnetic waveguides made of two materials (a connected phase and included phase) whose electromagnetic material properties are in large contrast. A spectral analysis of 2nd-order divergence-form partial differential operators (with a coupling constant k) is provided. A result of this analysis is a uniformly convergent power series representation of Bloch-wave eigenvalues in terms of the coupling constant k in the high-contrast limit k -> infinity. An explicit radius of convergence for this power series is obtained, and can be written explicitly in terms of the …

Extensive Sensitivity Analysis And Parallel Stochastic Global Optimization Using Radial Basis Functions Of Integrated Biorefineries Under Operational Level Uncertainties, Santiago David Salas Ortiz

LSU Master's Theses

This work presents a decision-making framework for global optimization of detailed renewable energy processes considering technological uncertainty. The critical uncertain sources are identified with an efficient computational method for global sensitivity analysis, and are obtained in two different ways, simultaneously and independently per product pathway respect to the objective function. For global optimization, the parallel stochastic response surface method developed by Regis & Shoemaker (2009) is employed. This algorithm is based on the multi-start local metric stochastic response surface method explored by the same authors (2007a). The aforementioned algorithm uses as response surface model a radial basis function (RBF) for …

Walter Lippmann's Search For A Sustainable Liberalism, Eric Schmidt

LSU Doctoral Dissertations

Walter Lippmann’s intellectual journey represents the journey of American liberalism in the 20th century: an attempted return from infatuation with the progressive ideals of inevitable historical development and scientific progress to the stability of human rights and freedom. America’s path to defining its brand of liberalism finds expression in the philosophical works of Lippmann, who was at the center of this struggle. Lippmann was a defender of the liberal democratic state whose value as a thinker derives from his attempt to understand the problem of political freedom (are people competent to self-rule in a mass democracy?) throughout this critical time …

The Supercritical Pyrolysis Of 1-Octene, Elizabeth Anne Hurst

LSU Master's Theses

In the pre-combustion environment, fuels for future high-speed aircrafts are predicted to take on increasing heat loads in their role as the primary coolant in order to remove excess heat from engine subsystems. While acting in this role, these fuels are expected to experience temperatures and pressures up to 700 °C and 130 atm, conditions which are supercritical for jet fuels and most hydrocarbons. Such extreme conditions can cause fuel decomposition and subsequent pyrolytic reactions, which can lead to the formation of polycyclic aromatic hydrocarbons (PAH). PAH are precursors to solids deposits that clog fuel-delivery lines, causing reduced engine performance …

#Cone-Versation: A Tactical Urbanist Experiment, Yifu Liu

LSU Master's Theses

The thesis intends to introduce tactical urbanism as a way to expand the toolkit for designers to communicate with theirs audiences from the public. Lessons from the post-Katrina planning processes urges for better communication tool that invites broader conversation while providing more direct physical outcome from the process. Tactical urbanism is introduced to the city and the discipline of landscape architecture in order to provide a fresh solution to the communication by changing the speech between the authority figure and the residents into a more personal conversation with an invitation through on-site installation. At the same time, it is a …

Ben Moore's "Dear Theo," For Tenor Voice And Piano: A Performer's Guide, Gregory Michael Gallagher

LSU Doctoral Dissertations

American composer Ben Moore (b. 1960) is a well-regarded painter, pianist, and composer whose compositions have been sung by leading singers of the Metropolitan Opera. This document serves as a performer’s guide to Moore’s song cycle Dear Theo. The song cycle utilizes Moore’s own text adaptations of letters written by Vincent van Gogh to his brother Theo. Chapter 1 presents a biographical sketch of Vincent van Gogh and his path to becoming a painter. Chapter 2 provides a brief life history of Ben Moore based on personal interview. Chapter 3 details the process of creating the song cycle Dear Theo. …

Mcluhan.Js: Live Net Art Performance With Remote Web Browsers, Benjamin Francis Taylor

LSU Doctoral Dissertations

McLuhan.js is a media art performance platform which engages with the web browser as a source of form and content. The platform enables a new performance scenario: a performer creates live net art actions in the browsers of remote viewers. McLuhan.js contains client-side and server-side tools for creating net art, as well as a live coding performance interface. These tools are designed to remotely control real-time collages of web media, browser windows, and computer art tropes. While the McLuhan.js toolkit is deliberately of its time, it is so because it participates in a tradition of 20th-century artists who reflected on …

El Cristo Negro: Presencia Y Significado En La Nueva España Y Filipinas, Fernando N. Zialcita

Sociology & Anthropology Department Faculty Publications

No abstract provided.

A Design Thinking Approach To Professional Development In Reasonable Adjustment: A New Methodology For Trainers In The Vocational Education And Training Sector Of Western Australia, Russell Thom

Theses: Doctorates and Masters

This research has demonstrated that design thinking (DT) could be used as a professional development (PD) methodology for Vocational Education and Training (VET) trainers in understanding and applying reasonable adjustment (RA). The use of design thinking has the further benefit of raising the trainer’s empathy and understanding of the impact of injury and disability upon a person’s life and the significance of RA outside of the training context.

A workshop (PD session) was designed and conducted to explorer the relevance and success of the PD framework and the use of design thinking in developing an understanding and applying RA. The …

Lifetime And Efficiency Improvement Of Organic Luminescent Solar Concentrators For Photovoltaic Applications, Yamna El Mouedden

Theses: Doctorates and Masters

In order to achieve the goal of zero net-energy consumption in residential and commercial buildings, substantial research has been devoted to developing methods for energy harvesting from window glass that is capable of passing visible light through the windows of buildings while converting the unwanted invisible solar radiation into electricity. Research has focussed on two particular aspects, namely (i) the integration of thin-film technology for solar radiation transmission control and (ii) light guiding structures for solar radiation routing towards the edges of the glass window.

Recently, photovoltaic (PV) solar cells have been investigated and promoted as products for converting solar …

Skill Mastery And The Formation Of Graduate Identity In Bachelor Graduates: Evidence From Australia, Denise Jackson

Research outputs 2014 to 2021

Mastery of certain generic skills and the successful formation of pre-professional identity are widely considered to influence graduate work-readiness and job attainment. Given their links with enhanced productivity, performance and innovation, skill development and graduate identity appear critical amidst ongoing global stagnation in advanced economies. This paper focuses on the success of higher education in developing generic skills and graduate identity using national data (n = 80,891) for 51 providers. It investigates the influence of certain demographics, study and degree characteristics on these important areas of undergraduate curricula. Furthermore, it gauges recent graduate perceptions on the importance of skill development …

Influence Of Neural Network Training Parameters On Short-Term Wind Forecasting, Adel Brka, Yasir M. Al-Abdeli, Ganesh Kothapalli

Research outputs 2014 to 2021

This paper investigates factors which can affect the accuracy of short-term wind speed prediction when done over long periods spanning different seasons. Two types of neural networks (NNs) are used to forecast power generated via specific horizontal axis wind turbines. Meteorological data used are for a specific Western Australian location. Results reveal that seasonal variations affect the prediction accuracy of the wind resource, but the magnitude of this influence strongly depends on the details of the NN deployed. Factors investigated include the span of the time series needed to initially train the networks, the temporal resolution of these data, the …

A Preliminary Investigation Into Worry About Mental Health: Development Of The Mental Health Anxiety Inventory, Della Commons, Kenneth M. Greenwood, Rebecca A. Anderson

Research outputs 2014 to 2021

Background:

Worry about physical health is broadly referred to as health anxiety and can range from mild concern to severe or persistent anxiety such as that found in DSM-IV hypochondriasis. While much is known about anxiety regarding physical health, little is known about anxiety regarding mental health. However, recent conceptualizations of health anxiety propose that individuals can experience severe and problematic worry about mental health in similar ways to how people experience extreme worry about physical health.

Aims:

Given the paucity of research in this area, the aim of the current study was to explore anxiety regarding mental health through …

Profiling Igg N-Glycans As Potential Biomarker Of Chronological And Biological Ages: A Community-Based Study In A Han Chinese Population, Xinwei Yu, Youix Wang, Jasminka Krištić, Jing Dong, Xi Chu, Siqi Ge, Hao Wang, Honghong Fang, Qing Gao, Di Lui, Zhongya Zhao, Hongli Peng, Maja P. Baković, Lijuan Wu, Manshu Song, Igor Rudan, Harry Campbell, Gordan Lauc, Wei Wang

Research outputs 2014 to 2021

As an important post-translation modifying process, glycosylation significantly affects the structure and function of immunoglobulin G (IgG) molecules and is essential in many steps of the inflammatory cascade. Studies have demonstrated the potential of using glycosylation features of IgG as a component of predictive biomarkers for chronological age in several European populations, whereas no study has been reported in Chinese. Herein, we report various patterns of changes in IgG glycosylation associated with age by analyzing IgG glycosylation in 701 community-based Han Chinese (244 males, 457 females; 23-68 years old). Eleven IgG glycans, including FA2B, A2G1, FA2[6]G1, FA2[3]G1, FA2[6]BG1, FA2[3]BG1, A2G2, …

Resilience As Resistance To The New Managerialism: Portraits That Reframe Nursing Through Quotes From The Field, Vicki Cope, Bronwyn Jones, Joyce Hendricks

Research outputs 2014 to 2021

Aim:

This paper acknowledges the relationship between resilience and the new managerialism of contemporary nursing.

Methods:

Qualitative portraiture methodology.

Discussion:

The new managerialism in hospital settings results in a rapidly increasing turnover of acutely ill or comorbid patients, which directly relates to retention and quality service. In education settings, the management imperative to recruit more students into the profession combined with financial cutbacks leads to similar tensions. In aged care the trend equates care directly with funding, with the same effect. Yet despite this, many registered nurses remain working. Portraiture explored 'why' nurses remain in workplaces often described as awful. …

Proactive Biometric-Enabled Forensic Imprinting, Abdulrahman Alruban, Nathan L. Clarke, Fudong Li, Steven M. Furnell

Research outputs 2014 to 2021

Threats to enterprises have become widespread in the last decade. A major source of such threats originates from insiders who have legitimate access to the organization's internal systems and databases. Therefore, preventing or responding to such incidents has become a challenging task. Digital forensics has grown into a de-facto standard in the examination of electronic evidence; however, a key barrier is often being able to associate an individual to the stolen data. Stolen credentials and the Trojan defense are two commonly cited arguments used. This paper proposes a model that can more inextricably links the use of information (e.g. images, …

Incorporating Field Studies Into Species Distribution And Climate Change Modelling: A Case Study Of The Koomal Trichosurus Vulpecula Hypoleucus (Phalangeridae), Shaun Molloy, Robert Davis, Eddie Van Etten

Research outputs 2014 to 2021

Species distribution models (SDMs) are an effective way of predicting the potential distribution of species and their response to environmental change. Most SDMs apply presence data to a relatively generic set of predictive variables such as climate. However, this weakens the modelling process by overlooking the responses to more cryptic predictive variables. In this paper we demonstrate a means by which data gathered from an intensive animal trapping study can be used to enhance SDMs by combining field data with bioclimatic modelling techniques to determine the future potential distribution for the koomal (Trichosurus vulpecula hypoleucus). The koomal is a geographically …

Floating Constructed Wetland For The Treatment Of Polluted River Water: A Pilot Scale Study On Seasonal Variation And Shock Load, Tanveer Saeed, Biprojit Paul, Rumana Afrin,, Abdullah Al-Muyeed, Guangzhi Sun

Research outputs 2014 to 2021

This paper reports the performance of a pilot scale floating constructed wetland (FCW), employed for the treatment of polluted water collected from Buriganga river in Bangladesh. The FCW system included a tank for accommodating collected water and a floating mat with media, to support the growth of two macrophyte species Phragmites australis and Canna indica. Mean mass removal rates of 0.66, 0.76, 0.08, 0.51, 2.49g/m2d were achieved for ammoniacal nitrogen (NH4-N), total inorganic nitrogen (TIN), phosphorus (P), biochemical oxygen demand (BOD), chemical oxygen demand (COD), respectively by the FCW. Nitrogen removal was via nitrification-denitrification processes, whereas filtration-sedimentation appeared to influence …

Influence Of Nb On The Β → Α″ Martensitic Phase Transformation And Properties Of The Newly Designed Ti-Fe-Nb Alloys, Shima Ehtemam-Haghighi, Yujing Liu, Guanghui Cao, Lai-Chang Zhang

Research outputs 2014 to 2021

A series of Ti-7Fe-xNb (x = 0, 1, 4, 6, 9, 11 wt.%) alloys was designed and cast to investigate the β → α″ martensitic phase transformation, β phase stability, the resulting microstructure and mechanical properties. Phase analysis revealed that only Ti-7Fe-11Nb alloy shows a single body-centred cubic β phase microstructure while the others are comprised of β and orthorhombic α″ phases. Moreover, Nb addition up to 11 wt.% enhances the stability and volume fraction of β phase in the microstructure, hence reducing the propensity of the alloy system to form α″ phase during quenching. Compressive yield strength and hardness …

A Practical Anodic And Cathodic Curve Intersection Model To Understand Multiple Corrosion Potentials Of Fe-Based Glassy Alloys In Oh-Contained Solutions, Yingjie Li, Yonggang Wang, Bang An, Hui Xu, Yihua Liu, Laichang Zhang, Houyi Ma, Weimin Wang

Research outputs 2014 to 2021

A practical anodic and cathodic curve intersection model, which consisted of an apparent anodic curve and an imaginary cathodic line, was proposed to explain multiple corrosion potentials occurred in potentiodynamic polarization curves of Fe-based glassy alloys in alkaline solution. The apparent anodic curve was selected from the measured anodic curves. The imaginary cathodic line was obtained by linearly fitting the differences of anodic curves and can be moved evenly or rotated to predict the number and value of corrosion potentials. © 2016 Li et al. This is an open access article distributed under the terms of the Creative Commons Attribution …

Spatiotemporal Pattern Analysis Of Scarlet Fever Incidence In Beijing, China, 2005–2014, Gehendra Mahara, Chao Wang, Da Huo, Qin Xu, Fangfang Huang, Lixin Tao, Jin Guo, Kai Cao, Liu Long, Jagadish K. Chhetri, Qi Gao, Wei Wang, Quanyi Wang, Xiuhua Guo

Research outputs 2014 to 2021

Objective:

To probe the spatiotemporal patterns of the incidence of scarlet fever in Beijing, China, from 2005 to 2014.

Methods:

A spatiotemporal analysis was conducted at the district/county level in the Beijing region based on the reported cases of scarlet fever during the study period. Moran’s autocorrelation coefficient was used to examine the spatial autocorrelation of scarlet fever, whereas the Getis-Ord Gi* statistic was used to determine the hotspot incidence of scarlet fever. Likewise, the space-time scan statistic was used to detect the space-time clusters, including the relative risk of scarlet fever incidence across all settings.

Results:

A total of …