Digital Commons Network^™

A Distributed Diffusion-Driven Algorithm For Load Balancing In An Electrical Power Grid, Isaac Abhilash Ayyala

LSU Master's Theses

In this thesis we propose a distributed algorithm, based on diffusion, to balance loads on an electrical power grid, while maintaining stable operation (system’s ability to maintain bus voltages within preset bounds). This algorithm, called the Diffusion-driven Distributed Load Balancing (DDLB) algorithm, is implemented on the OMNET++ Discrete Event Simulator and the response of the physical grid is simulated on a load flow program, which together simulate a deployment of the DDLB algorithm on the grid. The electrical grid is represented as a graph whose nodes are buses and whose edges are power lines connecting buses. Each node (except the …

Evidence Of Pedagogical Content Knowledge Among High School Band Directors And University Applied Music Teachers In The Context Of Student Self-Evaluation, Danielle Jeanette Emerich

LSU Master's Theses

The purpose of this study was threefold: (a) to seek evidence of pedagogical content knowledge (PCK) in high school band directors’ (generalists) and applied music teachers’ (specialists) evaluations of musical performance; (b) explore the similarities and differences between generalists’ and specialists’ perspectives on PCK; and (c) compare the evidences of PCK to student musicians’ self-evaluations of same performances. A basic interpretive qualitative approach with data collected through a think-aloud procedure applied to evaluation of solo music performance videos revealed four themes indicative of PCK—Aural Concept, Conveying Information, Effecting Change, and Uncertainty—and attendant sub-themes. Generalists and specialists provided a rich trove …

A Test Of The Effectiveness Of The Active Learning Technique Think-Pair-Share In A High School Science Classroom, Michael Francis Lowe

LSU Master's Theses

In this study, the active learning technique think-pair-share was tested in an independent high school non-honors chemistry classroom to see if it was more effective than teaching techniques already being used in the chemistry classes. Two classes of tenth grade chemistry students were combined as a test group and a third class of tenth grade chemistry students acted as the control. Learning gains for pre and post-tests from three different chemistry units were analyzed and no significant difference was found between the results of the control and test groups, indicating that think-pair-share was as effective as teaching methods already in …

Multiscale Modeling Of Particle Transport In Petroleum Reservoirs, Layne Bryan French

LSU Master's Theses

Modeling subsurface particle transport and retention is important for many processes, including sand production, fines migration, and nanoparticle injection. In this study, a pore-scale particle plugging simulator is concurrently coupled with a streamline reservoir simulator to predict the behavior of particles in the subsurface. The coupled simulators march forward in time together. The automated communication between the two models enables the prediction of spatially and time dependent parameters that control the particle transport process. At each time step, the reservoir simulator provides the inlet velocity and particle concentration of the fluid suspension to the pore-scale model which outputs the permeability, …

The Stratal Architecture Of The False River Point Bar (Lower Mississippi River, La), Alexandra Lechnowskyj

LSU Master's Theses

The False River point bar system is located roughly thirty miles north of Baton Rouge, LA. It is an oxbow lake cut off from the Mississippi River, and represents a large-scale modern analogue to the ancient systems of northeastern Alberta, Canada, specifically those of the Athabasca Oils Sands. While previous work has been done regarding the general architecture of a point bar, there is still omplexity associated with larger scale systems, as studies have been mostly based on small and medium-scale examples. Examination of the point bar was done through a combination of coring and geophysical logging, followed by software …

Correcting The Conversation: An Argument For A Public Health Perspective Approach To University Timely Warnings About Sexual Assault, Ashley Hesson

LSU Master's Theses

Reports of sexual violence should be written from a public health perspective approach to appropriately frame the occurrence and encourage accurate understandings of sexual assault as a larger societal issue. This research consists of two studies to investigate the way universities do (and should) communicate about sexual violence with their students. For Study 1, interviews were conducted with a random sample of public state Universities regarding their emergency alert processes and template usage to determine current emergency communication practices. The majority of universities contacted do not have a template or best practice guidelines in place for creating timely warnings. For …

Extreme Tolerance And Developmental Buffering Of Uv-C Induced Dna Damage In Embryos Of The Annual Killifish Austrofundulus Limnaeus, Josiah Tad Wagner, Jason E. Podrabsky

Biology Faculty Publications and Presentations

Free-living aquatic embryos are often at risk of exposure to ultraviolet radiation (UV-R). Successful completion of embryonic development depends on efficient removal of DNA lesions, and thus many aquatic embryos have mechanisms to reverse DNA lesions induced by UV-R. However, little is known of how embryos that are able to enter embryonic dormancy may respond to UV-R exposure and subsequent DNA damage. Embryos of the annual killifish Austrofundulus limnaeus are unique among vertebrates because their normal embryonic development includes (1) a complete dispersion of embryonic blastomeres prior to formation of the definitive embryonic axis, and (2) entry into a state …

The Correlation Between Parental Involvement And Student Academic Achievement, Damien Ramon Antoine

LSU Master's Theses

This study investigates whether or not there is a correlation between parental involvement and student academic achievement. A sample of 103 students at Madison Preparatory Academy and CSAL Middle School (CSAL, Inc) were tested for correlations between the degree with which their parents are engaged in their academic lives and the success that they achieve as a result. Small correlations were found to exist between some of the variables tested. The test group consisted of a group of high school students from Madison Preparatory Academy (MPA) and their siblings who attended CSAL Middle which is the feeder school for MPA. …

The Effectiveness Of Online Homework Tutorials As Compared To Pen And Paper Tutorials, Molly Shuman

LSU Master's Theses

The purpose of this study was to determine if students learn more from completing web based homework (WBHW) compared to completing homework by traditional means with pen and paper. Determining the efficacy of WBHW is important because many schools are being pressured to implement technology in the classroom. To determine the effectiveness of WBHW, student normalized learning gains were calculated from pre and post-test scores for 62 students. Learning gains were then compared when students completed WBHW, traditional homework, or did not complete homework at all, over four units in a high school chemistry class. No difference in learning gains …

Sexual Dimorphism In The Crania In A Norwegian Sample, Tonje Bakke Noack

LSU Master's Theses

Physical anthropologists strive to improve the accuracy of sex identification and to establish criteria of measurements within various populations. Different groups of native inhabitants show dissimilar results within cranial measurements and inaccuracies have been confirmed when comparing all populations to the common standard lineal measurements. This research examined 24 measurements on 120 crania from Norway and used statistical analyses to determine the sexual dimorphism between male and female crania. The study established the measurements with the most sexual dimorphism. These are the measurements of bizygomatic breadth, basion-bregma, biauricular breadth, glabella-opisthocranion, and upper facial breadth. The similarity of the values of …

Classification In The Presence Of Ordered Classes And Weighted Evaluative Attributes, Forrest Justin Osterman

LSU Doctoral Dissertations

We are interested in an important family of problems in the interface of the Multi-Attribute Decision-Making and Data Mining fields. This is a special case of the general classification problem, in which records describing entities of interest have been expressed in terms of a number of evaluative attributes. These attributes are associated with weights of importance, and both the data and the classes are ordinal. Our goal is to use historical records and the corresponding decisions to best estimate the class values of new data points in a way consistent with prior classification decisions, without knowledge of the weights of …

Engagement Across The Pond: The Nfl's Attempts To Increase Social Media Engagement Through The Cultural Targeting Of Messages, Isabelle Moore

LSU Master's Theses

With more and more sports organizations reaching saturation points in their current home markets, the search for new, untapped, international audiences is on. Reaching out to these new markets has been made much more simple by the digitization of communication, and particularly the global spread of social media. The NFL, as the United States’ most popular sports league has been targeting the United Kingdom as it’s next market since the mid-2000s, and has gone as far as setting up a separate UK branch of their communications division (NFL UK). The NFL faces several challenges in engaging new fans in this …

Otoliths Then And Now: A Study Of Ancient And Modern Fish Populations In Louisiana's Coastal Waters, Marshall James Kormanec

LSU Master's Theses

Fish otoliths are composed of inorganic calcium carbonate that aid in gravity and auditory reception. Substances permanently accrete to otolith surfaces in distinct temporal patterns of alternating opaque and translucent rings; these rings are direct proxies for a fish’s age. The objective of my research is to demonstrate how otoliths can be used through time and space to estimate both age and growth of fish. I investigated the spatial differences in age distributions and growth models for red snapper, Lutjanus campechanus, at four natural shelf-edge reefs in the northwestern Gulf of Mexico. Red snapper cohorts ranged 1987-2010 cohorts, with the …

Examining The Effects Of Academic And Social Interventions On The Behavior Of Students With Or At-Risk For Emotional Or Behavioral Disorders, Lauren M. Lejeune

LSU Master's Theses

Certainly the educational issues of students with and at-risk for emotional and behavioral disorders (EBD) are complex and multi-faceted (Forness, Freeman, Paparella, Kauffman, & Walker, 2012; Lane, Walker, Crnobori, Oliver, Bruhn, & Oakes, 2013; Wagner, 2004; Wiley & Forness, 2011). While improvements have been made in interventions for challenging behavior through a developing technology of functional behavior assessment and multi-tiered models of support, there remains a need for the demonstration of more effective academic and behavioral interventions applied in schools and under the direction of school personnel. The current study examined two such interventions across multiple students in a variety …

A Study Of Mathematical Equivalence: The Importance Of The Equal Sign, Christy De'sha Duncan

LSU Master's Theses

The purpose of this study was to investigate students’ understanding and knowledge of the equal sign, so that instructional resources could be identified to improve student’s conceptual understanding about mathematical equivalence. A test, consisting of a combination of items taken from previous studies, as well as items developed by the researchers, was designed to gauge students’ understanding of the equality symbol. The test was administered to 54 seventh-graders in Spring 2015. The results of the test indicated a significant number of students in our district have a limited understanding of mathematical equivalence. This papers ends with some suggested activities recommended …

Micro-Encapsulation Of Asphalt Rejuvenators Using Melamine-Formaldehyde, Max Abelardo Aguirre Deras

LSU Master's Theses

Self-healing microencapsulation in asphalt concrete is an emerging technology that would allow this particular material to resist cracking damage caused by vehicular and environmental loading. The objectives of this study were to evaluate the effect of an asphalt rejuvenator on asphalt binder in reversing the aging process and to develop a synthesis procedure for the production of microencapsulation of asphalt rejuvenators. Production parameters such as agitation rate, heating temperature and EMA concentration were varied to determine the effect on microcapsules properties such as size, shell thickness and morphology. Based on the results of the experimental program, it was concluded that …

Frequent Quizzing Versus Class Reviews, Kayla Daigle

LSU Master's Theses

This study was designed to identify an optimal strategy for increasing high school students’ mastery of science material, by comparing an approach that has been identified as effective in enhancing student learning to an approach commonly used in high school classrooms. Over the course of the 2014/15 school year, the investigator compared two different techniques commonly employed to enhance student understanding. Students in a traditional 10th grade physical science class and students in an honors 10th grade physical science class acted as both the control and experiment groups. The investigator provided a pre-test to determine the students’ prior knowledge of …

Multiscale Modeling Of Smart Materials Under Static And Dynamic Thermo-Mechanical Loading, Soodabeh Sharafi

LSU Master's Theses

Engineering material systems with tailored capabilities are a topic trend in plethora of research. Polymer based Artificial Muscle, PAM, and Shape memory polymer fiber, SMPF, enable structural engineers to incorporate smartness functionality into their design through programming cycles. Smartness functionality leads to the production of artificial muscles with different load carrying capability. SMPF is another category of smart materials, which are capable of being micro-structurally engineered to isolate vibration at different temperature and frequency conditions. The smartness functionality offers the adjustment between inherent properties of these materials with their industrial applications through modeling techniques. Mixture of phenomenological, numerical, mathematical models …

Effects Of Inbreeding On Endangered Red Wolves (Canis Rufus), Kristin E. Brzeski

LSU Doctoral Dissertations

Inbreeding depression, the reduction in offspring fitness caused by mating among close relatives, is widespread in small populations and a major concern in conservation biology because it can affect population persistence. The negative effects of inbreeding results in the evolution of inbreeding avoidance behaviors; within small populations, such behaviors may encourage individuals to select mates outside of their respective species. Mate choice may also be facilitated by variation at major histocompatibility complex (MHC) genes, a gene group critical for immune response and disease resistance. Given broad impacts of inbreeding and MHC variation on fitness and behavior, evaluating their effects is …

Post-Treatment Assessment Of Hydraulic Fracturing With Integrated Modeling Of Natural Fracture Distribution, Ping Puyang

LSU Master's Theses

Hydraulic fracturing has been serving as the principal reservoir stimulation technique for decades to improve production capacities of low permeability formations. On the other hand, through core and outcrop studies, advanced logging tools, microseismic fracture mapping and well testing analysis, it has been further revealed that many of the shale gas formations are naturally fractured. The presence of natural fractures and their interactions with hydraulic fractures must be taken into consideration while designing fracturing treatment. Although most natural fractures are cemented by precipitations during diagenesis, they may be reactivated during hydraulic fracturing and serve as weak paths for fluid flow …

Prisoner In The Darkness, Joseph Lee Morris

LSU Master's Theses

This thesis details the writing process and performance of the author’s one man show, PRISONER IN THE DARKNESS. Adapted with special permission from Naghmeh Abedini, PRISONER IN THE DARKNESS is based on the letters, correspondences, and reports of Saeed Abedini, an American citizen, imprisoned in Iran. Pastor Saeed went back to his homeland to work on humanitarian efforts; however, he was wrongfully arrested and sent to Evin Prison in September 2012. In January 2013, Saeed was sentenced to eight years in prison for conspiring to undermine the Iranian government. His crime? His Christian faith. This thesis will explain the different …

Mathematical Model Of The Split Firefly Luciferase Assay, Renee Dale

LSU Master's Theses

The firefly luciferase complementation assay is widely used as a bioluminescent reporter technology to detect protein-protein interactions in vitro and in vivo. Firefly luciferase oxidates its substrate, luciferin, resulting in the emission of light. A previous study suggests that the firefly luciferase complementation assay has different luminescence kinetics from full length luciferase. The mechanism behind this is still unknown. Although half of the previously published studies utilizing the firefly luciferase complementation assay consider it quantitative. To understand how the molecular reactions and the changes in the affinity of the protein pair affect experimental results, a mathematical model was constructed. This …

Binding Of Independent Contexts In Source Memory, Samantha Nicole Spitler

LSU Master's Theses

Within the present study the binding between two independent source dimensions in a multidimensional source memory paradigm was investigated. Specifically, I examined stochastic dependence between the retrieval of each source dimension. Previous work has defined stochastic dependence as the higher probability of correct source retrieval for one dimension contingent on previous correct retrieval of a second source dimension, versus when contingent on incorrect retrieval of the second source dimension. Evidence is mixed as to whether item information within source dimensions must be encoded simultaneously in order to demonstrate eventual stochastic dependence. The present study tested the binding of two cross-modal …

Contesting Unmodulated Deprivation: Sauvé V Canada And The Normative Limits Of Punishment, Efrat Arbel

All Faculty Publications

Despite a pressing need for judicial guidance on the legalities of administrative segregation, Canadian courts have yet to outline clear, comprehensive principles by which to assess its deployment. While some courts have rebuked the Correctional Service of Canada for the improper use of administrative segregation in specific cases, the regulation of the practice more broadly has proven elusive. This article turns to the Supreme Court of Canada’s prisoner voting rights decision in Sauvé v Canada for guidance in this regard. Since its release in 2002, Sauvé has been applied largely in cases involving political rights, and rarely in cases involving …

17Β-Estradiol Induced Effects On Anterior Cruciate Ligament Laxness And Neuromuscular Activation Patterns In Female Runners, Iman Akef Khowailed, Jerrold S. Petrofsky, Everett Lohman, Noha Daher, Mohamed Olfat

College of Health & Human Services (TUN) Publications and Research

Background: To investigate the effects of 17β-Estradiol across phases of menstrual cycle on the laxness of the anterior cruciate ligament (ACL) and the neuromuscular control around the knee joint in female runners.

Methods: Twelve healthy female runners, who reported normal menstrual cycles for the previous 6 months were tested twice across one complete menstrual cycle for serum levels of 17β Estradiol (E), and knee joint laxity (KJL). Electromyographic (EMG) activity of the quadriceps and hamstrings muscles was also recorded during running on a treadmill. The changes in the EMG activity, KJL, and hormonal concentrations were recorded for each …

Effect Of Tai Chi Exercise Combined With Mental Imagery Theory In Improving Balance In A Diabetic And Elderly Population, Abdulrahman Alsubiheen, Jerrold S. Petrofsky, Noha S. Daher, Everett Lohman, Edward Balbas

College of Health & Human Services (TUN) Publications and Research

BACKGROUND: One of the effects of diabetes mellitus (DM), peripheral neuropathy, affects the sensation in the feet and can increase the chance of falling. The purpose of the study was to investigate the effect of 8 weeks of Tai Chi (TC) training combined with mental imagery (MI) on improving balance in people with diabetes and an age matched control group.
MATERIAL AND METHODS: Seventeen healthy subjects and 12 diabetic sedentary subjects ranging from 40–80 years of age were recruited. All subjects in both groups attended a Yang style of TC class using MI strategies, 2 sessions a week …

A Shifting Terrain: A Brief History Of The Adaptive Landscape, Michael Dietrich, Robert A. Skipper Jr.

Dartmouth Scholarship

This volume brings together prominent historians of science, philosophers, ecologists, and evolutionary biologists, with the aim of discussing the state of the art of the Adaptive Landscape from several different perspectives.

An Assessment Of Retractions As A Measure Of Scientific Misconduct And Impact On Public Health Risks, Alison J. Abritis

USF Tampa Graduate Theses and Dissertations

Research misconduct has been generally considered a limited issue, occurring in a small percentage of research studies. Studies of the number of article retractions use retraction percentages to perpetuate the idea that research misconduct is not a common event, and use information in the retraction notice to quantify types of research misconduct and types or research error. However, retractions appear to be the wrong variable with which to assess misconduct rates and characteristics. Using final misconduct findings in hard science research from the Office of Research Integrity (ORI) for investigations closed from 1993 through 2013, the number of publications and …

Hesitation Rate As A Speaker-Specific Cue In Bilingual Individuals, Jamie Lynn Armbrecht

USF Tampa Graduate Theses and Dissertations

Hesitation use is common among all speakers, regardless of whether they are engaged in their dominant or non-dominant language (Fehringer & Fry, 2007; Reed, 2000). The question is whether a bilingual speaker will engage in the same types of hesitations in both languages. If hesitation patterns can be identified consistently across speakers regardless of language, their use as an acoustic cue for speaker identification may be possible. This study examines differences in hesitation use across languages and speaking contexts (reading vs. conversation) in bilingual speakers.

Twenty Spanish-English bilinguals (ages 19 -31 years) were tested as part of a larger speaker …

Obesity As A Disease: Effects On Weight-Biased Attitudes And Beliefs, Rheanna Nichole Ata

USF Tampa Graduate Theses and Dissertations

In June 2013, the American Medical Association (AMA) made the highly controversial decision to designate obesity a disease. Proponents predicted the decision would lead to reduced weight-related stigma, whereas opponents predicted designating a third of the population as “diseased” would exacerbate stigma. To determine the effects of defining obesity as a disease on explicit and implicit weight-biased attitudes and explicit weight-biased beliefs, female undergraduate students (N = 146) were randomly assigned to one of two groups: disease or lifestyle. Participants in the disease group (n = 71) were asked to read an article describing obesity as a disease caused by …