Digital Commons Network^™

The Roles Of Avr4 In Fungal Virulence,Cercosporin Biosynthesis And Its Potential Use In Host Induced Gene Silencing For Controlling Cercospora Leaf Blight Disease Of Soybeans, Josielle Santos Rezende

LSU Doctoral Dissertations

The AVR4 effector, secreted by Cladosporium fulvum, has been demonstrated to be involved in pathogen virulence. Recent studies further demonstrated that Avr4 is highly conserved among several Cercospora species, indicating a potential important role of this gene in fungal virulence. Therefore, investigation to determine whether this fungal effector gene is present in Cercospora cf. flagellaris (previously known as C. kikuchii), the causal agent of soybean cercospora leaf blight (CLB) disease, and whether it plays any role in CLB disease development, is of great interest. In the present study, the Avr4 gene from C. cf. flagellaris was cloned and mutants lacking …

Immigration, Ethnicity, And Citizenship: The Words And Faces Of The Chinese Of North America, Pengyi Huang

LSU Doctoral Dissertations

In this dissertation, I have analyzed the migrant experience of Chinese immigrants in North America through their representation in literature and photography. Each of its three chapters focuses on three major ethnic issues affecting the lives and identity of Chinese immigrants and their offspring in North America: the first concerns the ways in which occupation, home, and family affect the destinies of Chinese immigrants; the second deals with the role of language in the lives of Chinese immigrants and the career of Chinese migrant writers; the third addresses stereotypes about Chinese immigrants and their offspring and the redefinition of their …

Organizational Misconduct Within The National Collegiate Athletic Association, Khirey Bennie Walker

LSU Doctoral Dissertations

Prior research on organizational misconduct within intercollegiate athletics focuses on the penalties administered by the NCAA and types of violations committed by member institutions, rather than the engagement of misconduct and the role of the NCAA as a social-control agent. Consequently, the purpose of this dissertation is to analyze the relationship between social-control agents and potential wrongdoers (i.e., organizations), in addition to how the relationship affects the evolving line separating right from wrong. A three-paper multiple method examination has been conducted, including a historical analysis of NCAA enforcement, a qualitative framing analysis on the detailing of NCAA major infractions to …

"Leave All That You Have, That You May Take All:" What Hugo Distler's Totentanz Reveals About His Life And Music, Alison Elizabeth Allerton

LSU Doctoral Dissertations

Hugo Distler (1908-1942) has been described as the most important composer of Protestant Church music in Germany in the early twentieth century—a remarkable epithet given that he was a professional church musician and composer for only about twelve years before his life was abruptly ended with his suicide in 1942. Though he is more well-known in Germany, in the United States public perception of Distler is often limited to two basic “facts:” (1) he is a neo-Baroque composer whose works emulate Heinrich Schütz, and (2) his suicide was an act of resistance against the hated National Socialist regime. This study …

Tribological And Dynamical Study Of An Automotive Transmission System, Meng Li

LSU Doctoral Dissertations

The transmission system is critical for automotive and heavy duty equipment due to its prominent role in the powertrain system, which is often challenged with degraded torque capacity and harsh dynamic response. Simulation-guided design can provide appropriate guidelines to resolve these problems with virtual analyses. In current study, the tribological and dynamical study of an automatic transmission is performed at two levels: a wet clutch and powertrain. In this dissertation, tribological study is performed for a wet clutch based on the thermohydrodynamic (THD) analysis that takes the following factors into account. • The groove effect (depth, area, and pattern) is …

Analytical Solutions And Multiscale Creep Analysis Of Functionally Graded Cylindrical Pressure Vessels, Jasem Amjad Ahmed

LSU Doctoral Dissertations

This study deals with the time-dependent creep analysis of functionally graded thick-cylinders under various thermal and mechanical boundary conditions. Firstly, exact thermoelastic stress, and iterative creep solutions for a heat generating and rotating cylindrical vessel made of functionally graded thermal and mechanical properties are proposed. Equations of equilibrium, compatibility, stress-strain, and strain-displacement relations are solved to obtain closed-form initial stress and strain solutions. It is found that material gradient indices have significant influences on thermoelastic stress profiles. For creep analysis, Norton’s model is incorporated into rate forms of the above-mentioned equations to obtain time-dependent stress and strain results using an …

Bonaparte's Dream: Napoleon And The Rhetoric Of American Expansion, 1800-1850, Mark Ehlers

LSU Doctoral Dissertations

Between 1800 and 1850, the United States built a continental empire that stretched from the Atlantic seaboard to the Pacific Ocean. As scholars have come to realize over the past three decades, this expansion was not a peaceful movement of American settlers into virgin wilderness. Instead, it involved the conquest and subjugation of diverse peoples in Louisiana, Florida and the northern provinces of Mexico, and forced the United States to interact aggressively with the European empires of Great Britain, France, Spain, and eventually Mexico. My work helps to explain how Americans in the early republic reconciled this militant expansion with …

Sediment Transport And Slope Stability In The Northern Gulf Of Mexico, Jeffrey Blake Obelcz

LSU Doctoral Dissertations

Sediment transport and slope stability are fundamental organizing agents of the geological record. These processes have been extensively studied along the northern margin of the Gulf of Mexico basin for both basic and applied purposes, but our knowledge of them is limited by the spatial and temporal sampling capabilities of traditional geologic oceanographic surveying tools such as coring, single-beam echosounders, and sidescan sonar. This dissertation seeks to update the state of knowledge regarding northern Gulf of Mexico sediment transport and slope stability from annual to millennial timescales, primarily using relatively high-resolution acoustic geophysical tools such as swath bathymetric echosounders and …

Deterritorializing Dichotomies In Teacher Induction: A (Post)Ethnographic Study Of Un/Becoming An Elementary Science Teacher, Maria Ferris Greene Wallace

LSU Doctoral Dissertations

Un/becoming an elementary science teacher is a dynamic phenomenon, yet the process is often intentionally limited to several taken-for-granted assumptions in research on science teacher induction. Inherent to research on beginning science teacher induction is also the construction of certain truths beginning science teachers, science teacher educators, and researchers think, feel, and live. This study complicates prevailing truths shaping notions of beginner, novice, induction, and traditions of inquiry as an ethicopolitical commitment to those implicated. In doing so, this study illuminates more expansive ways science teacher educators and those studying induction might study and understand the experiences of beginning science …

Maori Preserved Heads: A Legal History, Robert K. Paterson

All Faculty Publications

For the first three decades of the nineteenth century New Zealand remained untouched by outside law. Foreign contacts mostly involved visits by traders, whalers, and missionaries. The latter sought to discourage the Maori practice of tattooing (ta moko), while the former quite soon began to see opportunities for trade in preserved tattooed heads. Early accounts of New Zealand described these heads and their mode of preservation. Ob-servers noted that both the heads of enemy warriors slain in battle, along with those of deceased chiefs and others of high rank, were preserved. The process involved the removal of interior soft tissue …

Classical And Americanist Approaches To Human Osteology And Mortuary Archaeology, Alexandra Ptacek

Undergraduate Theses and Senior Projects

No abstract provided.

The Role Of Ethics Online And Among Social Media Designers, Meredith James

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

As communication designers, our roles have changed greatly with the technological advancements of the Internet and social media. With these vastly changing roles are equal (and often problematic) demands on designers to act as ethical interventionists. In specific, designers are more and more frequently finding themselves in roles of arbitration and decision-making surrounding ethical concerns. Such decisions span everything from what is to be considered “allowable content” (breastfeeding, for example) to deciding how our devices respond to crisis (Miner, et al., 2016). I intend to present several case studies of designers placed in authority positions centered around ethics and new …

The Reinvention Of Tradition: Transformation Of Chinese Water Sleeve Dance And Tai Ji In Contemporary Performer Training And Performance Making, Min Zhu

Theses: Doctorates and Masters

The aim of this practice-led research was to investigate the nature and characteristics of the notion of reinvented tradition in China through the examination of dance practices. First, this research focused on the continuity of tradition demonstrated in the development of Chinese classical dance. Second, it concentrated on the malleability and applicability of two representative Chinese cultural dance practices, water sleeve dance and Tai Ji, in contemporary performance and performer training.

The central concept behind this research was the commonly held perception in China that “tradition is a river” (P. Huang, 1990) in the context of the Chinese dance …

Nurse Staffing, Patient Falls And Medication Errors In Western Australian Hospitals: Is There A Relationship?, Ahmad Mousa

Theses: Doctorates and Masters

Background: According to the Australian Bureau of Statistics (2013) falls and medication errors in hospitals are among the first twenty leading causes of death. Research on the relationship between nurse staffing, patient falls, and medication errors are limited. Even scarcer are studies that examine this relationship on a nursing shift by shift and ward by ward basis, and no research exists on shift overlap periods and adverse patient outcomes.

Objective: This study examined whether there was a relationship between hospital inpatient falls and medication errors and nurse staffing on a shift by shift and ward by ward basis, including an …

Using Blog Comments As Feedback To Promote The Metacognitive Development Of Creativity, Mark Mcmahon, Heather Joseph

Research outputs 2014 to 2021

Creativity can be viewed, not just as a set of skills and strategies, but as an overarching metacognitive skill that integrates a range of subordinate generic skills. Key to developing creativity is to engage in a cycle of ideation, reflection and adjustment, within a feedback rich environment. Blogs have the ability to garner external comments that can prompt these processes. Case study research was undertaken to explore what forms of feedback promote metacognitive development and how those forms can best be elicited within a blog. Findings indicated that blog comments can motivate, provide information, enhance quality and promote reflection, and …

Valuing Users Of Needle Syringe Exchange Programs: Design Approaches Within The Healthcare Sector, Samantha Pekaar, Hanadi Haddad

Research outputs 2014 to 2021

Injecting drug users are among the most marginalised and stigmatised groups in society. This is a wicked problem exacerbated by multifaceted assumptions, misconceptions, and stereotypes surrounding injecting drug users. Stigmatisation results in injecting drug users being frequently denied basic human rights and subjected to severe social isolation (AIVL, 2003). Human-centered research approaches are particularly pertinent when conducting research in healthcare. The application of design approaches to define and address the perceived issues can result in more empathic and relevant designed outcomes (see Clarkson et al., 2010; Lamb, Zimring, Chuzi, & Dutcher, 2010; Loscin & Nagji, 2009; Razzouk & Shutre, 2012; …

Managing Learning In The Workplace: A Study Of The Perceptions And Practice Of Local Government Managers, Jenna Rogers

Theses: Doctorates and Masters

In 1995 the Australian Government commissioned the report Enterprising Nation ‘: renewing Australia’s managers to meet the challenges of the Asia-Pacific century (Karpin, 1995), which emphasised the change that was necessary in Australian business to remain competitive in the global and growing economy. The development of flexible organisational cultures, where managers increasingly displayed leadership and developed their staff to generate innovative cultures, was a central premise of the Karpin Report Task Force’s vision. Twenty years later, this study explored the extent to which managers have moved from being ‘cops to coaches’ and integrated the facilitation of employee learning within …

Population-Based Cohort Study In Outcome Of Phased Progression Of Atherosclerosis In China (Persuade): Objective, Rationale And Design, Dong-Kai Shan, Yong Zhou, You-Xin Wang, Xiang Gao, Wei Wang, Jun-Jie Yang, Yun-Dai Chen

Research outputs 2014 to 2021

The coronary artery calcification score and pericardial fat volume have recently been reported to be strongly associated with the severity and presence of coronary atherosclerosis. However, no studies have explored the outcome of phased progression of atherosclerosis by non-contrast computed tomography in asymptomatic people in China. The population-based cohort study in outcome of phased progression of atherosclerosis in China (PERSUADE), an observational, longitudinal and prospective cohort study in a target population of healthy subjects based in Jidong Oilfield (China), prospectively analyzes the outcome of phased progression of atherosclerosis by non-contrast computed tomography in healthy population. The results of this study …

Editorial: Special Issue On Modeling In Endurance Sports, Chris Abbiss, Dietmar Saupe

Research outputs 2014 to 2021

Analysing and predicting sports performance to optimise training and competition is a wide and complex field. To date, most methods heavily rely on the subjective experience of trainers and athletes. Nevertheless, objective mathematical methods and computer-based solutions have become increasingly popular over recent years and offer a wide range of research topics. This research is by nature interdisciplinary, involving sport and exercise science together with computational science and engineering.

Fiber Bragg Grating Sensors For Mainstream Industrial Processes, Gary Allwood, Graham Wild, Steven Hinkley

Research outputs 2014 to 2021

This paper reviews fiber Bragg grating sensing technology with respect to its use in mainstream industrial process applications. A review of the various types of sensors that have been developed for industries such as power generation, water treatment and services, mining, and the oil and gas sector has been performed. A market overview is reported as well as a discussion of some of the factors limiting their penetration into these markets. Furthermore, the author’s make recommendations for future work that would potentially provide significant opportunity for the advancement of fiber Bragg grating sensor networks in these mainstream industries.

A Meta-Analysis Of The Prevalence Of Different Functions Of Non-Suicidal Self-Injury, Peter Taylor, Khowla Jomar, Katie Dhingra, Rebecca Forrester, Ujala Shahmalak, Joanne M. Dickson

Research outputs 2014 to 2021

Background

A broad variety of different functions can underlie acts of Non-suicidal self-injury (NSSI). Whilst research so far has identified many of the commonly reported functions, no reliable estimates of prevalence currently exist for these different NSSI functions. Understanding the prevalence of NSSI functions represents a key to better understanding the phenomenology of NSSI and addressing the differing needs of the NSSI population. We conducted a systematic review and meta-analysis of the prevalence of NSSI functions in community and clinical samples.

Method

A literature search of electronic databases PsycINFO, Medline, and Web of Science from date of inception to March …

An Investigation Into Spike-Based Neuromorphic Approaches For Artificial Olfactory Systems, Anup Vanarse, Adam Osseiran, Alexander Rassau

Research outputs 2014 to 2021

The implementation of neuromorphic methods has delivered promising results for vision and auditory sensors. These methods focus on mimicking the neuro-biological architecture to generate and process spike-based information with minimal power consumption. With increasing interest in developing low-power and robust chemical sensors, the application of neuromorphic engineering concepts for electronic noses has provided an impetus for research focusing on improving these instruments. While conventional e-noses apply computationally expensive and power-consuming data-processing strategies, neuromorphic olfactory sensors implement the biological olfaction principles found in humans and insects to simplify the handling of multivariate sensory data by generating and processing spike-based information. Over …

Resistivity Profiles Of Perth Soil In Australia In Leak-Detection Test, Lopa M. Pandey, Sanjay K. Shukla, Daryoush Habibi

Research outputs 2014 to 2021

The use of a suitable leak-detection system for the prevention and mitigation of pollution due to lining system failures is integral to the proper management of landfill facilities. This paper briefly summarises various methods of leak detection that are currently being practised. The details of a newly developed leak-detection technique are also presented. The tests were conducted to evaluate the performance of the new technique by use of controlled leakage. The resulting resistivity profiles for Perth soil in Australia were obtained at 10 min. This method is found to be effective in detecting and locating liner leakage issues within 30 …

Anaemia Of Chronic Kidney Disease: What We Know Now, Anoushka R. Krishnan, Debbie Trinder, Anita C. G. Chua, Aron Chakera, Grant A. Ramm, John K. Olynyk

Research outputs 2014 to 2021

Our understanding of the pathophysiology of the anaemia of chronic kidney disease (CKD) has improved considerably in the last decade with the discovery of the iron regulatory peptide hepcidin. Reduced clearance of hepcidin and the presence of a chronic inflammatory state contribute to elevated hepcidin levels in kidney disease. The recent discovery of the various factors and signalling pathways regulating hepcidin has opened up an exciting avenue for research into the development of newer agents that could treat anaemia of CKD. This review highlights our current understanding of iron metabolism in health, the regulators of hepcidin, issues associated with the …

Psychological Consequences Of Ivf Fertilization – Review Of Research, Alicja Malina, Julie Ann Pooley

Research outputs 2014 to 2021

Due to the reported efficacy of in vitro fertilization (IVF) this method of dealing with infertility is increasing being used. Experiencing IVF can be a source of psychological and emotional difficulties for couples trying to have a child. A systematic review was performed to discuss IVF as a psychological issue that impacts on the functioning of individuals, couples and families. Ebsco, Science Direct and PsycARTICLES databases were searched using the keywords: IVF fertilization, IVF psychology, infertility, and IVF consequences, using published peer reviewed articles from 2006 onwards. Studies in the English and Polish languages, peer reviewed and investigating general IVF …

Clarence Thomas The Questioner, Ronnell Andersen Jones, Aaron L. Nielson

NULR Online

No abstract provided.

Pso Algorithm For An Optimal Power Controller In A Microgrid, Waleed Al-Saedi, Stefan Lachowicz, Daryoush Habibi, Octavian Bass

Research outputs 2014 to 2021

This paper presents the Particle Swarm Optimization (PSO) algorithm to improve the quality of the power supply in a microgrid. This algorithm is proposed for a real-time selftuning method that used in a power controller for an inverter based Distributed Generation (DG) unit. In such system, the voltage and frequency are the main control objectives, particularly when the microgrid is islanded or during load change. In this work, the PSO algorithm is implemented to find the optimal controller parameters to satisfy the control objectives. The results show high performance of the applied PSO algorithm of regulating the microgrid voltage and …

Drilling Reconfigurable Machine Tool Selection And Process Parameters Optimization As A Function Of Product Demand, Ana Vafadar, Kevin Hayward, Majid Tolouei-Rad

Research outputs 2014 to 2021

Special purpose machines (SPMs) are customized machine tools that perform specific machining operations in a variety of production contexts, including drilling-related operations. This research investigates the effect of optimal process parameters and SPM configuration on the machine tool selection problem versus product demand changes. A review of previous studies suggests that the application of optimization in the feasibility analysis stage of machine tool selection has received less attention by researchers. In this study, a simulated model using genetic algorithm is proposed to find the optimal process parameters and machine tool configuration. During the decision-making phase of machine tool selection, unit …

Exercise Medicine For Advanced Prostate Cancer, Nicolas H. Hart, Daniel A. Galvao, Robert Newton

Research outputs 2014 to 2021

Purpose of review:

Exercise is a provocative medicine, known for its preventive, complimentary and rehabilitative role in the management of cancer. Impressively, exercise is also emerging as a synergistic and targeted medicine to enhance symptom control, modulate tumour biology and delay disease progression, with the potential to increase overall survival. Given the complex clinical presentation of advanced prostate cancer patients and their omnipresent comorbidities, this review describes the current and potential role of exercise medicine in advanced prostate cancer.

Recent findings:

Exercise has been shown to be safe, feasible and effective for advanced prostate cancer patients, inclusive of patients with …

Use Of Ultrasound By Registered Nurses—A Systematic Literature Review, Ulrich Steinwandel, Nicholas Gibson, James Charles Rippey, Amanda Towell, Johan Rosman

Research outputs 2014 to 2021

Background:

In Western Australia (WA), most stable patients undergoing haemodialysis receive treatment in a satellite setting where no doctors are on-site during treatment hours, so nurses must make critical decisions about fluid removal. Some patients regularly experience adverse events during dialysis (intradialytic), often due to excessive ultrafiltration goals, with intradialytic hypotension being particularly challenging. Ultrasound of the inferior vena cava has been previously demonstrated being a rapid and non-invasive method for volume assessment on haemodialysis patients, thus could hold valuable information for the treating nurse.

Aim:

This paper examines the existing literature in regards to the use of …