Digital Commons Network^™

Use Of Harvest Aid In Soybean: Application Timing, Economics And Interactions In Ipm Programs, Joseph Michael Boudreaux

LSU Master's Theses

Indeterminate and determinate soybean (Glycine max (L). Merr.) cultivars were treated with the harvest aids, paraquat and sodium chlorate, when moisture of seed collected from the uppermost four nodes of plants averaged 60, 50, 40, 30, and 20% (+ or - 2%). Harvest aid application at 60% seed moisture reduced yield of the Maturity Group (MG) IV indeterminate cultivar 15%, but yield was not affected with application at 50% seed moisture. For MG V and MG VI determinate cultivars, application at 60 and 50% seed moisture reduced yield 4 to 22%, but yield was not affected when harvest aid was …

Characterization Of The Subcortical Interactions Between Larvae Of The Southern Pine Sawyer Monochamus Titillator (F.) And The Larvae Of The Southern Pine Beetle Guild Using Molecular Gut Analyses, Erich N. Schoeller

LSU Master's Theses

The southern pine beetle guild (Coleoptera: Curculionidae: Scolytinae) is arguably the most destructive group of forest pests in the Southeastern United States. Laboratory assays suggest that larvae of wood borer associates from the genus Monochamus (Coleoptera: Cerambycidae) may be facultative intraguild predators of southern pine beetle guild. In this study the dynamics of the subcortical interactions between M. titillator (F.) and members of the southern pine beetle guild were examined using PCR-based molecular gut content analyses. Species-specific PCR primer sets were developed to work under multiplex PCR conditions to detect DNA of members of southern pine beetle guild in the …

Hear (No) Evil, See (No) Evil, Speak (No) Evil: Artistic Representations Of Argentina's "Dirty War", Juliana Theresa Reineman

LSU Doctoral Dissertations

My dissertation utilizes an interdisciplinary approach to analyze Argentina’s “Dirty War; in it, I argue that our view of the Other is the key to not repeating the past. Literature has long been accepted as a resource for understanding culture; this dissertation moves beyond literature, and includes photography, art, and film to demonstrate how artists have represented and responded to this period of political oppression. Adopting a psychoanalytic approach for my research, I begin with a literary analysis of multiple texts which exhibit features of what Anne Whitehead calls “trauma fiction,” texts in which the narrative voice displays the repetition …

Developing A Gulf-Wide Oyster Reef Restoration Plan: Identification Of Spatial, Socio-Economic And Geo-Political Constraints, Elizabeth Ashby Nix

LSU Master's Theses

Oyster reefs have recently been identified as one of the most endangered coastal ecosystems, fueling efforts to restore and enhance these systems. Oyster reefs located in the northern Gulf of Mexico have been identified as some of the healthiest of reefs globally, and current efforts focus on devising an approach to Gulf-wide restoration of these reefs. As with all natural resource management and restoration, success is dependent on more than simply understanding the biological requirements of the resource; rather, they are equally dependent on understanding and working within the social and political context in which these management and restoration activities …

Myth, Method And Masturbation: The Hysteria Of Woman's Sexuality, A One-Person Play, Josephine Hall

LSU Master's Theses

The assigned task was to create a one-person play of approximately 20 – 45 minutes in length. There were no other guidelines to follow. Having never performed a solo play, I found the assignment somewhat daunting. My first challenge was to overcome my basic dislike of solo performances. However, during the process I found new appreciation for such works. I was rather overwhelmed when trying to find a suitable topic for my piece until I came across an on-line article entitled “Vaginas with teeth – and other sexual myths”. This spurred me to create the one-person play Myth, Method and …

What Is The 'Law' In Chinese Tax Administration?, Wei Cui

All Faculty Publications

In December 2009, in just weeks of proximity to the issuance of several controversial, arguably ultra vires tax circulars by the Ministry of Finance and by the State Administration of Taxation (SAT), the latter agency promulgated a seminal regulation governing informal rulemaking activities of all tax authorities in China. This regulation took effect on July 1, 2010, and promises to significantly improve the clarity, transparency, predictability, and quality of tax rulemaking. Ironically, it can also be seen as a rebuke to a cynical view that is rather prevalent among Chinese tax practitioners and reinforced by the recent problematic tax circulars. …

Experimental Study Of Cognitive Radio Test-Bed Using Usrp, Venkat Vinod Patcha

LSU Master's Theses

Cognitive Radio is an emerging technology that enables efficient utilization of the spectrum. As such, it has created great interests in industrial and research fields. Many people have proposed test-bed models for the performance analysis of primary and secondary users in a real-time noise environment. However, these test-beds are generally lacking in their range of capabilities as well as accurate implementation of the proposed models. In this thesis, we develop our test-bed on USRP to achieve the spectrum sensing and co-existence of primary and secondary users, while implementing the rendezvous protocols for secondary traffic coordination. We first demonstrate the spectrum …

The Effect Of High Dose Total Body Irradiation On Acth, Corticosterone, And Catecholamines In The Rat, Eric P. Cohen, Eric D. Bruder, William E. Cullinan, Dana R. Ziegler, Hershel Raff

Biomedical Sciences Faculty Research and Publications

Total body irradiation (TBI) or partial body irradiation is a distinct risk of accidental, wartime, or terrorist events. Total body irradiation is also used as conditioning therapy before hematopoietic stem cell transplantation. This therapy can result in injury to multiple tissues and might result in death as a result of multiorgan failure. The hypothalamic–pituitary–adrenal (HPA) axis could play a causative role in those injuries, in addition to being activated under conditions of stress. In a rat model of TBI, we have established that radiation nephropathy is a significant lethal complication, which is caused by hypertension and uremia. The current study …

Environmental Migrants And The Future Of The Willamette Valley: A Preliminary Exploration, Alison Wicks

Institute of Metropolitan Studies Publications

This report reviews existing data and research on predicted impacts of climate change in the Northwestern United States, and specifically focuses on the level of preparedness to accommodate new population growth due to climate migration in Oregon’s Willamette Valley. Climate change impacts in Oregon are predicted to be less severe than in other areas of the country. Generally, models project warmer, wetter winters and hotter, drier summers in the Willamette Valley and other areas west of the Cascade Range. This will likely make the Willamette Valley a more desirable place for environmentally displaced people to locate. This report considers how …

Simulation And Emulation Of Massively Parallel Processor For Solving Constraint Satisfaction Problems Based On Oracles, Gunavant Dinkar Chaudhari

Dissertations and Theses

Most part of my thesis is devoted to efficient automated logic synthesis of oracle processors. These Oracle Processors are of interest to several modern technologies, including Scheduling and Allocation, Image Processing and Robot Vision, Computer Aided Design, Games and Puzzles, and Cellular Automata, but so far the most important practical application is to build logic circuits to solve various practical Constraint Satisfaction Problems in Intelligent Robotics. For instance, robot path planning can be reduced to Satisfiability. In short, an oracle is a circuit that has some proposition of solution on the inputs and answers yes/no to this proposition. In other …

Pedagogical Catalysts Of Civic Competence: The Development Of A Critical Epistemological Model For Community-Based Learning, Stephanie Taylor Stokamer

Dissertations and Theses

Civic competence is critical to the successful functioning of pluralistic democracies. Developing the knowledge, skills, and motivations for effective democratic participation is a national and global imperative that many higher education institutions have embraced through the teaching strategies of community-based learning and service-learning. Yet, scant research literature has focused on the relationship between pedagogical approaches and civic competence outcomes. This five-year longitudinal study of 11,000 students in 700 senior-level capstone courses at an urban research university empirically tested a new theoretically constructed model of civic competence development in order to identify epistemological and pedagogical elements that enhance civic competence. Eight …

The Immortal Life Of Henrietta Lacks: How A Best-Seller Diffused Online, Melissa Ann Shavlik

Dissertations and Theses

This study describes how information spread on the internet by examining diffusion, framing and source use surrounding coverage of the 2010 best-selling book, The Immortal Life of Henrietta Lacks. The book presented a rare opportunity to view how a story about science, discovery and race became a best-seller within weeks after its publication. Through a mixed-methods and case study approach, the author examines patterns of coverage using Google Alerts that traced the book's online coverage in the first six months of its release. The author found that online information clustered around several themes with the most prominent describing aspects of …

Toward A Taxonomy Of Diversity At Work: Developing And Validating The Workplace Diversity Inventory, Aisha Smith Taylor

Dissertations and Theses

The purpose of this research was to develop a taxonomy of workplace diversity and examine its implications for understanding and predicting diversity at work. A 7-dimension taxonomy was originally developed by reviewing contemporary literature on diversity in the workplace. The taxonomy is grounded in Social Identity Theory. Preliminary research found that each of the seven dimensions of the taxonomy were present in 78 critical incidents describing work-relevant diversity dynamics. The current study reports the development and administration of an instrument, the Workplace Diversity Inventory (WDI), which was used to empirically examine the 7-factor model of the taxonomy in over 20 …

A Study Of Soil Organic Matter And Its Controlling Factors In Portland, Oregon, Megan Dillon

Dissertations and Theses

Traditionally, local above- and below-ground plant and microbial communities, temperature and precipitation, topography and texture and composition of parent material have been thought to govern the soil processes that lead to soil organic matter accumulation over decades or centuries. Soil organic matter is a substantial global reservoir of carbon and disturbance of equilibrated soils often leads to efflux of significant quantities of CO2. Anthropogenic influences shift the inputs, disturb the structure and alter the biochemistry of soil, profoundly disrupting soil-forming processes. Urbanization leads to soil organic matter equilibria that are different from those in naturally forming soils. Measurement of soil …

Low-Latency Estimates For Window-Aggregate Queries Over Data Streams, Amit Bhat

Dissertations and Theses

Obtaining low-latency results from window-aggregate queries can be critical to certain data-stream processing applications. Due to a DSMS's lack of control over incoming data (typically, because of delays and bursts in data arrival), timely results for a window-aggregate query over a data stream cannot be obtained with guarantees about the results' accuracy. In this thesis, I propose a technique, which I term prodding, to obtain early result estimates for window-aggregate queries over data streams. The early estimates are obtained in addition to the regular query results. The proposed technique aims to maximize the contribution to a result-estimate computation from all …

Perceptions And Voices Of South Sudanese About The North-South Sudan Conflict, Machar Wek Aleu-Baak

Dissertations and Theses

The conflict in Sudan reflects historic hatred and ethnic discrimination between Northern Arab Muslims and Southern African Christians and Animists. The longest and worst conflict began in 1983 and ended in 2005, when African Christians and Animists struggled to form an interim autonomous government. This conflict claimed 2 million lives from both sides and displaced almost 4 million people from the South. This thesis attempts to understand how people from Southern Sudan perceive the root causes and sustaining factors of the Sudanese conflict between Arab Muslims and African Christians. This research looks specifically into the roles of ethnic differences and …

The Moving To The Beat Documentary And Hip-Hop Based Curriculum Guide: Youth Reactions And Resistance, Jennifer Wallin-Ruschman

Dissertations and Theses

Many of the academic and popular treatments of hip-hop overlook the complexity of the phenomenon. Hip-hop is often portrayed solely as a source of corruption and regressive tendencies or, alternatively, as a sort of savior for otherwise marginalized individuals and source of revolutionary power. This thesis situates hip-hop between these poles and draws out its progressive and regressive aspects for analysis. Considering its vast global influence and a growing body of academic literature, hip-hop has been notably understudied in the field of psychology. Alternatively, educational theorists and practitioners have realized the power of hip-hop in revisualizing an emancipatory education that …

Family-Supportive Supervisory Behaviors As A Moderator Of The Relationship Between Job Strain And Workers' Blood Pressure, Christopher Scott Harper

Dissertations and Theses

Cardiovascular disease is one of the leading causes of death in industrialized nations. Research indicates that job strain may be significantly related to cardiovascular disease in employees with little to no social support. Using the JDC-S model developed by Karasek (1979) and elaborated upon by Johnson and Hall (1988), the family-supportive supervisory behaviors (FSSB) measure created by Hammer et al., (2009), and the blood pressure wrist monitor device Omron317T, this study examined FSSB as a moderator of the relationship between job strain, job demands, job control and workers' blood pressure on work and non-work days. Sixty-nine grocery store workers from …

Assessment Of An Optimal Bus Stop Spacing Model Using High Resolution Archived Stop-Level Data, Huan Li

Dissertations and Theses

In practice, the design of bus routes and stop placement involves calculated trade-offs between service frequency, quality, and access. Increased stop density improves access but contributes to slow operating speeds and increased operating costs. In this thesis, a optimized bus stop spacing model is applied using the high resolution archived stop-level bus performance data from the Bus Dispatch System (BDS) provided by TriMet, the regional transit provider for the Portland metropolitan area. Two cost components are considered in the stop spacing model including passenger access cost and in-vehicle passenger stopping cost, and are combined and optimized to minimize total cost. …

Storytelling As Loving Praxis In Critical Peace Education: A Grounded Theory Study Of Postsecondary Social Justice Educators, Amanda Smith Byron

Dissertations and Theses

Looking through the philosophical lens of love, this study seeks a deeper understanding and appreciation of how postsecondary social justice educators use storytelling, in the context of critical peace education, to create social change. This research explores the guiding question of how storytelling is used to encourage social change and to inspire action toward the goal of greater social justice. The argument for the importance of this research is located within the crisis of neoliberalism, where the very tenets of democratic education are being challenged by an educational agenda that favors standards-based learning and employment training over the critical and …

Scalable And Efficient Tasking For Dynamic Sensor Networks, Thanh Xuan Dang

Dissertations and Theses

Sensor networks including opportunistic networks of sensor-equipped smartphones as well as networks of embedded sensors can enable a wide range of applications including environmental monitoring, smart grids, intelligent transportation, and healthcare. In most real-world applications, to meet end-user requirements, the network operator needs to define and update the sensors' tasks dynamically, such as updating the parameters for sensor data collection or updating the sensors' code. Tasking sensor networks is necessary to reduce the effort in programming sensor networks. However, it is challenging due to dynamics and scale in terms of number of nodes, number of tasks, and sensing regions of …

Information Processing In Two-Dimensional Cellular Automata, Martin Cenek

Dissertations and Theses

Cellular automata (CA) have been widely used as idealized models of spatially-extended dynamical systems and as models of massively parallel distributed computation devices. Despite their wide range of applications and the fact that CA are capable of universal computation (under particular constraints), the full potential of these models is unrealized to-date. This is for two reasons: (1) the absence of a programming paradigm to control these models to solve a given problem and (2) the lack of understanding of how these models compute a given task. This work addresses the notion of computation in two-dimensional cellular automata. Solutions using a …

A Computational Model Of Adaptive Sensory Processing In The Electroreception Of Mormyrid Electric Fish, Eran Agmon

Dissertations and Theses

Electroreception is a sensory modality found in some fish, which enables them to sense the environment through the detection of electric fields. Biological experimentation on this ability has built an intricate framework that has identified many of the components involved in electroreception's production, but lack the framework for bringing the details back together into a system-level model of how they operate together. This thesis builds and tests a computational model of the Electrosensory Lateral Line Lobe (ELL) in mormyrid electric fish in an attempt to bring some of electroreception's structural details together to help explain its function. The ELL is …

Writing Her Way To Spiritual Perfection: The Diary Of 1751 Of Maria De Jesus Felipa, Stephanie Oliver

Dissertations and Theses

Throughout the colonial period of Mexican history, cloistered nuns wrote spiritual journals at the request of their confessors. These documents were read and scrutinized, not only by the confessors, but also by others in the hierarchy of their Orders. They are important sources of study for historians in that they provide a window into the religious culture of the times and the spiritual mentality of their authors. This thesis will examine one such record, discovered in a collection of volumes at the Historical Franciscan Archive of Michoacán in Celaya, Mexico. The diary covers eleven months of 1751 in the life …

Scratched Petroglyphs In The Bennett Hills, Idaho, Karla Lucille Hambelton

Dissertations and Theses

This study examines rock art sites containing scratched petroglyphs in the Bennett Hills, Idaho. Despite their research potential, scratched petroglyphs have received little attention in rock art research or literature. This study contributes valuable data to scratched rock art research and the corpus of rock art research in general. Two samples of ten scratched petroglyph sites were examined and recorded for a total of twenty petroglyph sites. Using formal and contextual research methods, multiple attributes of scratched petroglyphs are identified and analyzed. The formal qualities of scratched petroglyphs are examined to define the extent and to characterize the motif assemblage. …

Student Approaches To Combinatorial Enumeration: The Role Of Set-Oriented Thinking, Elise Nicole Lockwood

Dissertations and Theses

Combinatorics is a growing topic in mathematics with widespread applications in a variety of fields. Because of this, it has become increasingly prominent in both K-12 and undergraduate curricula. There is a clear need in mathematics education for studies that address cognitive and pedagogical issues surrounding combinatorics, particularly related to students' conceptions of combinatorial ideas. In this study, I describe my investigation of students' thinking as it relates to counting problems. I interviewed a number of post-secondary students as they solved a variety of combinatorial tasks, and through the analysis of this data I defined and elaborated a construct that …

High Speed Wireless Networking For 60ghz, Candy Yiu

Dissertations and Theses

This thesis examines the problem of providing high data-rate wireless connectivity to users in indoor environments. The goal is to be able to reach Gbps/user rates even when there are multiple users present. The technology that we study is to use the 60 GHz spectrum whose special propagation properties make it ideally suited to this task. The approaches developed include using multiple spatially distributed smart antennas in a room or multiple co-located antennas to provide coverage where needed and when needed. All the antennas are connected to a single access point which allows us to dynamically change spectrum and link …

Molecular Genetic Analysis Of Creld1 In Patients With Heterotaxy Disorder, Samaneh Zhian

Dissertations and Theses

Heterotaxy refers to the abnormal arrangement of internal organs in relation to each other. Model organism studies have shown that functions of more than eighty genes are required for normal asymmetric left-right organ development. CRELD1 has been shown to be necessary for proper heart development and mutations in CRELD1 are known to increase risk of cardiac atrioventricular septal defects (AVSD). AVSD is the most common form of heart defect associated with heterotaxy, and we have previously shown that some individuals heterotaxy-related AVSD have mutations in CRELD1.

Therefore, we propose to examine the CRELD1 gene in a large sample of …

Early Childhood Inclusion: Teacher Perception Of The Supports Needed To Fully Include Children With Special Needs, Meredith Villines

Dissertations and Theses

Inclusion of children with disabilities in early childhood settings remains a goal for many early care and education centers and professionals. In this study, the perceptions of supports needed to accomplish this goal were examined. Early childhood teachers from a university-based child care center, which is inspired by the schools in Reggio Emilia, Italy, were interviewed and asked to explore their feelings and thoughts on fully including children with disabilities in their classrooms. An examination of their perceptions led to the identification of four major themes: a) everyone is valuable in the classroom community, b) additional training is needed, c) …

A Functional Approach To Memory-Safe Operating Systems, Rebekah Leslie

Dissertations and Theses

Purely functional languages--with static type systems and dynamic memory management using garbage collection--are a known tool for helping programmers to reduce the number of memory errors in programs. By using such languages, we can establish correctness properties relating to memory-safety through our choice of implementation language alone. Unfortunately, the language characteristics that make purely functional languages safe also make them more difficult to apply in a low-level domain like operating systems construction. The low-level features that support the kinds of hardware manipulations required by operating systems are not typically available in memory-safe languages with garbage collection. Those that are provided …