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Concerto For Violin And Orchestra And "Nevertheless, She Composed: A Contemporary Survey Of Women Composers Of The Twenty-First Century", Elizabeth Anne Knox

LSU Doctoral Dissertations

This dissertation consists of two parts: the first part includes an original composition titled, “Concerto for Violin and Orchestra.” This twenty-minute work is composed for traditional orchestral instrumentation and solo violin. Motivic variation is the primary focus of this piece with a goal to show evidence of a thorough understanding and use of this technique. In music composition, variation is a technique achieved by restating musical material in an altered form. Schoenberg describes a motive as, “a unit which contains one or more features of interval and rhythm [whose] presence is maintained in constant use throughout a piece.” Therefore, motivic …

Simulating Wave Dynamics In The Northern Gulf Of Mexico And Barataria Pass, Azadeh Razavi Arab

LSU Master's Theses

The coastal wetlands of Louisiana constitute ~40% of the wetlands in the United States. However, it suffers from 80% of the wetland losses in the whole country. In shallow coastal and estuarine environments, bed shear stresses related to wind waves contributes substantially to the edge erosion in the northern Gulf of Mexico (NGoM). Therefore, wave simulations in shallow estuarine areas are of great importance.

There are several challenges in simulating waves nearshore, especially over the shallow and nearly horizontal sea beds typical of the NGoM continental shelf and adjacent complex geometry estuaries: determination of the appropriate wind forcing dataset to …

Improving Ocr Accuracy Of Damaged Pictures With Generative Adversarial Networks, Pu Du

LSU Master's Theses

In this thesis, we focus on resolving the inpainting problem and improving Optical Character Recognition (OCR) accuracy of damaged text images at character level. We present a Generative Adversarial Network (GAN)-based model conditioned on class labels for image inpainting. This model is a deep convolutional neural network with encoder-decoder style architecture which can process images with holes at random locations. Experiments on the character images dataset demonstrate that our proposed model generates promising inpainting results and significantly improve OCR accuracy by reconstructing missing parts of damaged character images.

Mass Spectrometric Calibration For Real -Time Hydrocarbon Detection, Makuachukwu Mbaegbu

LSU Master's Theses

Determining gas compositions from live well fluids on a drilling rig is critical for real time formation evaluation. However, development and utilization of a reliable mass spectrometric method to accurately characterize these live well fluids is always a challenging issue because of lack of a robust, quick and effectively selective instrument and method. The primary goal of this research is to understand reasons of such discrepancies in results between “good” spectra, and “poor” ones. The objectives are thus to identify the detection issues, calibrate and QA/QC the instruments, and analyze the results in lab settings. In this study, we used …

Role Of Coastal Environmental Conditions During Austral Winter On Plankton Community Dynamics And The Occurrence Of Pseudo-Nitzschia Spp. And Domoic Acid In Inhambane Province, Mozambique, Holly Kelchner

LSU Master's Theses

Harmful algal blooms (HABs) are increasing globally in frequency, persistence, and geographic extent. HABs pose a threat to economic stability, and ecosystem and human health. To date no incidences of marine toxins produced by phytoplankton have been recorded in Mozambique, which may be due to the absence of a monitoring program and general awareness of the potential threat. This study is the first documentation of the occurrence of a neurotoxin, domoic acid (DA), produced by the diatom genus Pseudo-nitzschia spp. along the east coast of Africa. The coast of Inhambane Province is a biodiversity hotspot where year-round Rhincodon typus (whale …

Introduction To Computational Thinking: A New High School Curriculum Using Codeworld, Fernando Alegre, John Underwoood, Juana Moreno

Faculty Publications

The Louisiana Department of Education partnered with the Gordon A. Cain Center at LSU to pilot a Computing High School Graduation Pathway. The first course in the pathway, Introduction to Computational Thinking (ICT), is designed to teach programming and reinforce mathematical practice skills of nine-grade students, with an emphasis on promoting higher order thinking. In 2017- 18, about 200 students and five teachers participated in the pilot, in 2018-2019 the participation increased to 400 students, and in the current 2019-2020 year about 800 students in 11 schools are involved. After describing the course content and the teacher training, we briefly …

Global Gene Flow Releases Invasive Plants From Environmental Constraints On Genetic Diversity, Annabel L. Smith, Trevor R. Hodkinson, Jesus Villellas, Jane A. Catford, Anna Mária Csergő, Simone P. Blomberg, Elizabeth E. Crone, Johan Ehrlén, Maria B. Garcia, Anna Liisa Laine, Deborah A. Roach, Roberto Salguero-Gómez, Glenda M. Wardle, Dylan Z. Childs, Bret D. Elderd, Alain Finn, Sergi Munné-Bosch, Maude E.A. Baudraz, Judit Bódis, Francis Q. Brearley, Anna Bucharova, Christina M. Caruso, Richard P. Duncan, John M. Dwyer, Ben Gooden, Ronny Groenteman, Liv Norunn Hamre, Aveliina Helm, Ruth Kelly, Lauri Laanisto, Michele Lonati, Joslin L. Moore, Melanie Morales

Faculty Publications

© 2020 National Academy of Sciences. All rights reserved. When plants establish outside their native range, their ability to adapt to the new environment is influenced by both demography and dispersal. However, the relative importance of these two factors is poorly understood. To quantify the influence of demography and dispersal on patterns of genetic diversity underlying adaptation, we used data from a globally distributed demographic research network comprising 35 native and 18 nonnative populations of Plantago lanceolata. Species-specific simulation experiments showed that dispersal would dilute demographic influences on genetic diversity at local scales. Populations in the native European range had …

The Function Of Poetry In The Maqamat Al-Hariri, Hussam Almujalli

LSU Doctoral Dissertations

The Maqamat al-Hariri is one of the most notable examples of prose in Arabic literature. Called one of the most eloquent statements of medieval Arabic prose, it also serves as a religious, social, cultural, and political document of the Abbasid Caliphate. As a writer, al-Hariri became a famous figure in Arabic literature after writing his maqamat. This dissertation studies al-Hariri as a poet through his most important prose work, the Maqamat al-Hariri.

Chapter 1 of the dissertation provides an overview of the maqama genre, including its definition, themes, stylistic features, character types, a brief history of maqamat studies, …

A Performance Guide To Kurt Erickson's Song Cycle Here, Bullet, André Yong Chun Chiang

LSU Doctoral Dissertations

The purpose of this document is to supply a comprehensive performer’s guide to American composer Kurt Erickson’s Here, Bullet, a song cycle consisting of four songs for baritone and piano set to the poetry of American poet Brian Turner. Additionally, an overview of its unique consortium-based commissioning process will be included in examination of the entrepreneurial nature of its creation.

Here, Bullet focuses on the soldier’s interaction with the bullet, suicide, foreign lands, and deployment in Iraq. The text comes from a book of poetry, which originated the song cycle’s name, and was written during Turner’s yearlong deployment to …

Restored Freshwater Flow And Estuarine Benthic Communities In The Northern Gulf Of Mexico: Research Trends And Future Needs, Jillian C. Tupitza, Cassandra N. Glaspie

Faculty Publications

Restoring river connectivity to rebuild and sustain land is a promising restoration strategy in coastal areas experiencing rapid land loss, such as the Mississippi river delta. Results of these large-scale hydrologic changes are preliminary, and there exists limited empirical evidence regarding how benthic communities will respond, specifically in Barataria Bay and Breton Sound in southeast Louisiana. In this review, the body of existing research in this geographic region pertaining to the drivers of benthic community response that are related to restored freshwater flow and sediment deposition is examined. Overall trends include (1) potential displacement of some species down-estuary due to …

Critical Collapse Of A Scalar Field In Semiclassical Loop Quantum Gravity, Florencia Benítez, Rodolfo Gambini, Luis Lehner, Steve Liebling, Jorge Pullin

Faculty Publications

We study the collapse in spherical symmetry of a massless scalar field minimally coupled to gravity using the semiclassical equations that are expected from loop quantum gravity. We find the critical behavior of the mass as a function of the parameters of the initial data similar to that found by Choptuik in classical general relativity for a large set of initial data and values of the polymerization parameter. Contrary to wide expectations for quantum gravity, our semiclassical field equations have an exact scale invariance, as do the classical field equations. As one would then expect, we numerically find that the …

Exit Problems For Jump-Diffusion Processes With Uniform Jumps, Mario Lefebvre

Journal of Stochastic Analysis

No abstract provided.

Attosecond Pulse Shaping Using A Seeded Free-Electron Laser, Praveen Kumar Maroju, Cesare Grazioli, Michele Di Fraia, Matteo Moioli, Dominik Ertel, Hamed Ahmadi, Oksana Plekan, Paola Finetti, Enrico Allaria, Luca Giannessi, Giovanni De Ninno, Carlo Spezzani, Giuseppe Penco, Simone Spampinati, Alexander Demidovich, Miltcho B. Danailov, Roberto Borghes, George Kourousias, Carlos Eduardo Sanches Dos Reis, Fulvio Billé, Alberto A. Lutman, Richard J. Squibb, Raimund Feifel, Paolo Carpeggiani, Maurizio Reduzzi, Tommaso Mazza, Michael Meyer, Samuel Bengtsson, Neven Ibrakovic, Emma Rose Simpson, Johan Mauritsson, Tamás Csizmadia, Mathieu Dumergue

Faculty Publications

Attosecond pulses are central to the investigation of valence- and core-electron dynamics on their natural timescales1–3. The reproducible generation and characterization of attosecond waveforms has been demonstrated so far only through the process of high-order harmonic generation4–7. Several methods for shaping attosecond waveforms have been proposed, including the use of metallic filters8,9, multilayer mirrors10 and manipulation of the driving field11. However, none of these approaches allows the flexible manipulation of the temporal characteristics of the attosecond waveforms, and they suffer from the low conversion efficiency of the high-order harmonic generation process. Free-electron lasers, by contrast, deliver femtosecond, extreme-ultraviolet and X-ray …

Examining Nursing Student Dropout Behavior: An Event History Analysis, Michele Lee Blackwell

LSU Doctoral Dissertations

This study examined student-level data to identify factors that predict student departure from an undergraduate nursing program. National nursing shortages, declining enrollment, and high rates of attrition pose significant concerns for undergraduate nursing programs. The following research questions guided this study: 1) Which student-level variables predict nursing student dropout risks over time? 2) Which student-level variables predict nursing student retention over time? and 3) When are nursing students most likely to drop out?

The methodological approach was event history analysis, a form of linear regression that measures the likelihood of an event (nursing student dropout) at a particular time (semesters …

The Influence Of Personality And Losses On Search In Decisions From Experience, Michael Mordechai Hay

LSU Master's Theses

Research in decision making has focused increasing attention on understanding search behavior without focusing on how individual differences might influence people’s search behavior. To increase our understanding of this topic, the present study examined how personality predicted the amount of search an individual engages in before making a risky decision. It was hypothesized that conscientiousness would be a positive predictor of search behavior and would emerge as an even stronger predictor of search behavior when choosing between options with negative outcomes. It was also hypothesized that neuroticism would be a negative predictor of search behavior and that individuals with higher …

Phenotypic And Genotypic Characterization Of Aroma And Cercospora Janseana Resistance In U.S. Rice, Christopher Keith Addison

LSU Doctoral Dissertations

Rice is a staple food for over one-third of the world’s population. With the increasing population, plant breeders must continue to breed for improved varieties. The utilization of markers to applied breeding program can increase the efficiency of selection for key traits. The targeted traits for this research include grain aroma and resistance to the fungal disease narrow brown leaf spot (Cercospora janseana). Our objective was to characterize SNP diversity across the BADH2 gene in publicly available sequence data of a collection of 2,932 rice varieties was characterized to determine the number of gene haplotypes in O. sativa. …

Ogawa Integrability And A Condition For Convergence In The Multidimensional Case, Nicolò Cangiotti, Sonia Mazzucchi

Journal of Stochastic Analysis

No abstract provided.

Quantum Fluctuating Geometries And The Information Paradox Ii, Rodrigo Eyheralde, Rodolfo Gambini, Jorge Pullin

Faculty Publications

In a previous paper we discussed corrections to Hawking radiation from a collapsing shell due to quantum fluctuations of the shell and the resulting horizon. For the computation of the quantum corrections we used several approximations. In this paper we take into account effects that were neglected in the previous one. We find important corrections including non-thermal contributions to the radiation at high frequencies and a frequency dependent time scale at which the emission of thermal radiation of frequency w cuts off. Such scale tends to infinity in the limit of a classical shell. The fact that one has almost …

Assessment Of Soil Protein And Refractory Soil Organic Matter Across Two Chronosequences Of Newly Developing Marshes In Coastal Louisiana, Usa, Stuart Alexander Mcclellan

LSU Doctoral Dissertations

The impacts of sea-level rise and hydrologic manipulation are threatening the stability of coastal marshes throughout the world, thereby increasing the potential for re-mineralization of soil organic matter (SOM) in these systems. Such threats have prompted marsh restoration efforts, particularly in coastal Louisiana, yet it is unclear how the slowly decomposing (refractory) and quickly decomposing (labile) fractions of SOM may be differentially affected by different approaches to marsh restoration. Additionally, otherwise labile compounds may accumulate in the soil via a range of protective mechanisms, including rapid burial and association with organic compounds that are thought to enhance soil aggregation, such …

Human Impact Overwhelms Long-Term Climate Control Of Fire In The Yangtze River Basin Since 3.0 Ka Bp, Wenqiang Pei, Shiming Wan, Peter D. Clift, Jiang Dong, Xiting Liu, Jian Lu, Yang Tan, Xuefa Shi, Anchun Li

Faculty Publications

© 2020 Elsevier Ltd A high-resolution fire history in the Yangtze River Basin over the past 7.0 ka BP is reconstructed based on the proxy of black carbon of sediment core ECMZ on the continental shelf of the East China Sea in order to reveal the interactions among fire, climate, vegetation and human activity on a regional scale. A comparison of fire activity with climatic and vegetation proxies suggests that changes in fire activity prior to 3.0 ka BP on both millennial- and centennial-timescales were closely related to variations in temperature and precipitation, with more fire during warm and humid …

Mixing Coefficient For Discrete-Time Stochastic Flow, E.V. Glinyanaya

Journal of Stochastic Analysis

No abstract provided.

On A Class Of Average Preserving Semi-Martingale Laws Optimization Problems, Rémi Lassalle

Journal of Stochastic Analysis

No abstract provided.

A Randomized Controlled Trial To Reduce Sedentary Time In Rheumatoid Arthritis: Protocol And Rationale Of The Take A Stand For Health Study, Ana Jessica Pinto, Tiago Peçanha, Kamila Meireles, Fabiana Braga Benatti, Karina Bonfiglioli, Ana Lúcia De Sá Pinto, Fernanda Rodrigues Lima, Rosa Maria Rodrigues Pereira, Maria Claudia Costa Irigoyen, James Edward Turner, John P. Kirwan, Neville Owen, David W. Dunstan, Hamilton Roschel, Bruno Gualano

Division of Basic Science Faculty Publications

Background: Patients with rheumatoid arthritis spend most of their daily hours in sedentary behavior (sitting), a predisposing factor to poor health-related outcomes and all-cause mortality. Interventions focused on reducing sedentary time could be of novel therapeutic relevance. However, studies addressing this topic remain scarce. We aim to investigate the feasibility and efficacy of a newly developed intervention focused on reducing sedentary time, and potential clinical, physiological, metabolic and molecular effects in rheumatoid arthritis. Methods: The Take a STAND for Health study is a 4-month, parallel-group, randomized controlled trial, in which postmenopausal patients with rheumatoid arthritis will set individually tailored, progressive …

Fermi And Swift Observations Of Grb 190114c: Tracing The Evolution Of High-Energy Emission From Prompt To Afterglow, M. Ajello, M. Arimoto, M. Axelsson, L. Baldini, G. Barbiellini, D. Bastieri, R. Bellazzini, A. Berretta, E. Bissaldi, R. D. Blandford, R. Bonino, E. Bottacini, J. Bregeon, P. Bruel, R. Buehler, E. Burns, S. Buson, R. A. Cameron, R. Caputo, P. A. Caraveo, E. Cavazzuti, S. Chen, G. Chiaro, S. Ciprini, J. Cohen-Tanugi, D. Costantin, S. Cutini, F. D'Ammando, M. Deklotz, P. De La Torre Luque, F. De Palma, A. Desai, N. Di Lalla

Faculty Publications

We report on the observations of gamma-ray burst (GRB) 190114C by the Fermi Gamma-ray Space Telescope and the Neil Gehrels Swift Observatory. The prompt gamma-ray emission was detected by the Fermi GRB Monitor (GBM), the Fermi Large Area Telescope (LAT), and the Swift Burst Alert Telescope (BAT) and the long-lived afterglow emission was subsequently observed by the GBM, LAT, Swift X-ray Telescope (XRT), and Swift UV Optical Telescope. The early-time observations reveal multiple emission components that evolve independently, with a delayed power-law component that exhibits significant spectral attenuation above 40 MeV in the first few seconds of the burst. This …

Residual Effects Of Termiticides On Mortality Of Formosan Subterranean Termite (Isoptera: Rhinotermitidae) On Substrates Subjected To Flooding, Rajani Sapkota, Michael J. Stout, Gregg Henderson

Faculty Publications

© 2019 The Author(s) 2019. Published by Oxford University Press on behalf of Entomological Society of America. Concerns on efficacies of termiticides used for soil treatment to prevent Formosan subterranean termite (Coptotermes formosanus Shiraki) infestations have prompted pest control companies to suggest that retreatments are necessary after flooding of homes. Therefore, to address concerns about the efficacy of termiticides after flooding, we designed a flooding simulation experiment in the laboratory. We used four formulated termiticides containing fipronil, imidacloprid, chlorantraniliprole, or bifenthrin as active ingredients (a.i.) and two colonies of field-collected C. formosanus for this study. Evaluations of each chemical at …

Conditional Quantum One-Time Pad, Kunal Sharma, Eyuri Wakakuwa, Mark M. Wilde

Faculty Publications

Suppose that Alice and Bob are located in distant laboratories, which are connected by an ideal quantum channel. Suppose further that they share many copies of a quantum state ρABE, such that Alice possesses the A systems and Bob the BE systems. In our model, there is an identifiable part of Bob's laboratory that is insecure: a third party named Eve has infiltrated Bob's laboratory and gained control of the E systems. Alice, knowing this, would like use their shared state and the ideal quantum channel to communicate a message in such a way that Bob, who has access to …

The Semimartingale Dynamics And Generator Of A Continuous Time Semi-Markov Chain, Robert J. Elliott

Journal of Stochastic Analysis

No abstract provided.

A Guide To Ligo-Virgo Detector Noise And Extraction Of Transient Gravitational-Wave Signals, B. P. Abbott, R. Abbott, T. D. Abbott, S. Abraham, F. Acernese, K. Ackley, C. Adams, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, T. Alford, G. Allen, A. Allocca, M. A. Aloy, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, M. Ar Ne, N. Arnaud

Faculty Publications

The LIGO Scientific Collaboration and the Virgo Collaboration have cataloged eleven confidently detected gravitational-wave events during the first two observing runs of the advanced detector era. All eleven events were consistent with being from well-modeled mergers between compact stellar-mass objects: black holes or neutron stars. The data around the time of each of these events have been made publicly available through the gravitational-wave open science center. The entirety of the gravitational-wave strain data from the first and second observing runs have also now been made publicly available. There is considerable interest among the broad scientific community in understanding the data …

Characterizing The Performance Of Continuous-Variable Gaussian Quantum Gates, Kunal Sharma, Mark M. Wilde

Faculty Publications

The required set of operations for universal continuous-variable quantum computation can be divided into two primary categories: Gaussian and non-Gaussian operations. Furthermore, any Gaussian operation can be decomposed as a sequence of phase-space displacements and symplectic transformations. Although Gaussian operations are ubiquitous in quantum optics, their experimental realizations generally are approximations of the ideal Gaussian unitaries. In this work, we study different performance criteria to analyze how well these experimental approximations simulate the ideal Gaussian unitaries. In particular, we find that none of these experimental approximations converge uniformly to the ideal Gaussian unitaries. However, convergence occurs in the strong sense, …

Expectation Values Of Coherent States For Su(2) Lattice Gauge Theories, Klaus Liegener, Ernst-Albrecht Zwicknagel

Faculty Publications

This article investigates properties of semiclassical Gauge Field Theory Coherent States for general quantum gauge theories. Useful, e.g., for the canonical formulation of Lattice Gauge Theories these states are labelled by a point in the classical phase space and constructed such that the expectation values of the canonical operators are sharply peaked on said phase space point. For the case of the non-abelian gauge group SU(2), we will explicitly compute the expectation value of general polynomials including the first order quantum corrections. This allows asking more precise questions about the quantum fluctuations of any given semiclassical system.