Digital Commons Network^™

Ligo Detector Characterization In The Second And Third Observing Runs, D. Davis, J. S. Areeda, B. K. Berger, R. Bruntz, A. Effler, R. C. Essick, R. P. Fisher, P. Godwin, E. Goetz, A. F. Helmling-Cornell, B. Hughey, E. Katsavounidis, A. P. Lundgren, D. M. Macleod, Z. Márka, T. J. Massinger, A. Matas, J. Mciver, G. Mo, K. Mogushi, P. Nguyen, L. K. Nuttall, R. M.S. Schofield, D. H. Shoemaker, S. Soni, A. L. Stuver, A. L. Urban, G. Valdes, M. Walker, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, Y. Asali, S. M. Aston, C. Austin, A. M. Baer, M. Ball, S. W. Ballmer, S. Banagiri, D. Barker, C. Barschaw, L. Barsotti, J. Bartlett, J. Betzwieser, R. Beda, D. Bhattacharjee, J. Bidler, G. Billingsley, S. Biscans, J. Bidler, G. Billingsley, S. Biscans, C. D. Blair, R. M. Blair, N. Bode, P. Booker, R. Bork, A. Bramley, A. F. Brooks, D. D. Brown, A. Buikema, C. Cahillane, T. A. Callister, G. Caneva Santoro, K. C. Cannon, J. Carlin, K. Chandra, X. Chen, N. Christensen, A. A. Ciobanu, F. Clara, C. M. Compton, S. J. Cooper, K. R. Corley, M. W. Coughlin, S. T. Countryman, P. B. Covas, D. C. Coyne, S. G. Crowder, T. Dal Canton, B. Danila, L. E. H. Datrier, G. S. Davies, T. Dent, N. A. Didio, C. Di Fronzo, K. L. Dooley, J. C. Driggers, P. Dupej, S. E. Dwyer, T. Etzel, M. Evans, T. M. Evans, S. Fairhurst, J. Feicht, A. Fernandez-Galiana, R. Frey, P. Fritschel, V. V. Frolov, P. Fulda, M. Fyffe, B. U. Gadre, J. A. Giaime, K. D. Giardina, G. Gonzalez, S. Gras, C. Gray, A. C. Green, A. Gupta, E. K. Gustafson, R. Gustafson, J. Hanks, J. Hanson, T. Hardwick, I. W. Harry, R. K. Hasskew, M. C. Heintze, J. Heinzel, N. A. Holland, I. J. Hollows, C. G. Hoy, S. Hughey, S. P. Jadhav, K. Janssens, G. Johns, J. D. Jones, S. Kandhasamy, S. Karki, M. Kasprzak, K. Kawabe, D. Keitel, N. Kijbuchoo, Y. M. Kim, P. J. King, J. S. Kissel, S. Kulkarni, R. Kumar, M. Landry, B. B. Lane, B. Lantz, M. Laxen, Y. K. Lecoeuche, J. Leviton, J. Liu, M. Lormand, R. Macas, A. Macedo, M. Macinnis, V. Mandic, G. L. Mansell, S. Marka, B. Martinez, K. Martinovic, D. V. Martynov, K. Mason, F. Matichard, N. Mavalvala, R. Mccarthy, D. E. Mcclelland, S. Mccormick, L. Mcculler, C. Mcisaac, T. Mcrae, G. Mendell, K. Merfeld, E. L. Merilh, P. M. Meyers, F. Meylahn, I. Michaloliakos, H. Middleton, J. C. Mills, T. Mistry, R. Mittleman, G. Moreno, C. M. Mow- Lowry, S. Mozzon, L. Mueller, N. Mukund, A. Mullavey, J. Muth, T. J. N. Nelson, A. Neunzert, S. Nichols, E. Nitoglia, J. Oberling, J. J. Oh, S. H. Oh, R. J. Oram, R. G. Ormiston, N. Ormsby, C. Osthelder, D. J. Ottaway, H. Overmier, A. Pai, J. R. Palamos, F. Pannarale, W. Parker, O. Patane, M. Patel, E. Payne, A. Pele, R. Penhorwood, C. J. Perez, K. S. Phukon, M. Pillas, M. Pirello, H. Radkins, K. E. Ramirez, J. W. Richardson, K. Riles, K. Rink, N. A. Robertson, J. G. Rollins, C. L. Romel, J. H. Romie, M. P. Ross, K. Ryan, T. Sadecki, M. Sakellariadou, E. J. Sanchez, L. E. Sanchez, L. Sandles, T. R. Saravanan, R. L. Savage, D. Schaetzl, R. Schnabel, E. Schwartz, D. Sellers, T. Shaffer, D. Sigg, A. M. Sintes, B. J. J. Slagmolen, J. R. Smith, K. Soni, B. Sorazu, A. P. Spencer, K. A. Strain, D. Strom, L. Sun, M. J. Szczepanczyk, J. Tasson, R. Tenorio, M. Thomas, P. Thomas, K. A. Thorne, K. Toland, C. I. Torrie, A. Tran, G. Traylor, M. Trevor, M. Tse, G. Vajente, N. Van Remortel, D. C. Vander-Hyde, A. Vargas, J. Veitch, P. J. Veitch, K. Venkateswara, G. Venugopalan, A. D. Viets, V. Villa-Ortega, T. Vo, C. Vorvick, M. Wade, G. S. Wallace, R. L. Ward, J. Warner, B. Weaver, A. J. Weinstein, R. Weiss, K. Wette, D. D. White, L. V. White, C. Whittle, A. R. Williamson, B. Willke, C. C. Wipf, L. Xiao, R. Xu, H. Yamamoto, H. Yu, H. Yu, L. Zhang, Y. Zheng, M. E. Zucker, J. Zweizig

Faculty Publications

The characterization of the Advanced LIGO detectors in the second and third observing runs has increased the sensitivity of the instruments, allowing for a higher number of detectable gravitational-wave signals, and provided confirmation of all observed gravitational-wave events. In this work, we present the methods used to characterize the LIGO detectors and curate the publicly available datasets, including the LIGO strain data and data quality products. We describe the essential role of these datasets in LIGO–Virgo Collaboration analyses of gravitational-waves from both transient and persistent sources and include details on the provenance of these datasets in order to support analyses …

Comparative Antennal Morphometry And Sensilla Organization In The Reproductive And Non-Reproductive Castes Of The Formosan Subterranean Termite, Paula Castillo, Nathan Le, Qian Sun

Faculty Publications

Antennae are the primary sensory organs in insects, where a variety of sensilla are distributed for the perception of the chemical environment. In eusocial insects, colony function is main-tained by a division of labor between reproductive and non-reproductive castes, and chemosensation is essential for regulating their specialized social activities. Several social species in Hymenoptera display caste-specific characteristics in antennal morphology and diversity of sensilla, reflecting their differential tasks. In termites, however, little is known about how the division of labor is associated with chemosensory morphology among castes. Using light and scanning electron microscopy, we performed antennal morphometry and characterized the …

Changes In The Microbial Community In Soybean Plots Treated With Biochar And Poultry Litter, Rosalie B. Calderon, Changyoon Jeong, Hyun Hwoi Ku, Lyndon M. Coghill, Young Jeong Ju, Nayong Kim, Jong Hyun Ham

Faculty Publications

The application of organic materials that promote beneficial microbial activity is vital to maintaining soil health and crop productivity. We investigated the effect on the soil microbiome of applying biochar (BC), poultry litter (PL), and a combination of biochar and poultry litter (BC/PL) in soybean cultivation at the Red River Research Station (Bossier City, LA, USA). We characterized the microbial profiles, community structure, and co-occurrence network from sequencing data to infer microbial interactions in the soil samples collected in the first and second years of each soil treatment (2016 and 2017, respectively). Our results showed that soil treatments with BC, …

Relating Dust Reference Models To Conventional Systems In Manifestly Gauge Invariant Perturbation Theory, Kristina Giesel, Bao-Fei Li, Parampreet Singh

Faculty Publications

Models with dust reference fields in relational formalism have proved useful in understanding the construction of gauge invariant perturbation theory to arbitrary orders in the canonical framework. These reference fields modify the dynamical equations for perturbation equations. However, important questions remain open on the relation with conventional perturbation theories of inflaton coupled to gravity and of multifluid systems, and on understanding modifications in terms of physical degrees of freedom. These gaps are filled in this manuscript for Brown-Kuchar and Gaussian dust models, both of which involve three scalar physical degrees of freedom. We establish a relationship of these models with …

Octo-Tiger: A New, 3d Hydrodynamic Code For Stellar Mergers That Uses Hpx Parallelization, Dominic C. Marcello, Sagiv Shiber, Orsola De Marco, Juhan Frank, Geoffrey C. Clayton, Patrick M. Motl, Patrick Diehl, Hartmut Kaiser

Faculty Publications

OCTO-TIGER is an astrophysics code to simulate the evolution of self-gravitating and rotating systems of arbitrary geometry based on the fast multipole method, using adaptive mesh refinement. OCTO-TIGER is currently optimized to simulate the merger of well-resolved stars that can be approximated by barotropic structures, such as white dwarfs (WDs) or main-sequence stars. The gravity solver conserves angular momentum to machine precision, thanks to a 'correction' algorithm. This code uses firx parallelization, allowing the overlap of work and communication and leading to excellent scaling properties, allowing for the computation of large problems in reasonable wall-clock times. In this paper, we …

Environmental Noise In Advanced Ligo Detectors, P. Nguyen, R. M.S. Schofield, A. Effler, C. Austin, V. Adya, M. Ball, S. Banagiri, K. Banowetz, C. Billman, C. D. Blair, A. Buikema, C. Cahillane, F. Clara, P. B. Covas, G. Dalya, C. Daniel, B. Dawes, R. Derosa, S. E. Dwyer, R. Frey, V. V. Frolov, D. Ghirado, E. Goetz, T. Hardwick, A. F. Helmling-Cornell, I. J. Hollows, N. Kijbunchoo, J. Kruk, M. Laxen, E. Maaske, G. L. Mansell, R. Mccarthy, K. Merfeld, A. Neunzert, J. R. Palamos, W. Parker, B. Pearlstone, A. Pele, H. Radkins, V. Roma, R. L. Savage, P. Schale, D. Shoemaker, T. Shoemaker, S. Soni, D. Talukder, M. Tse, G. Valdes, M. Vidreo, C. Vorvick, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, J. S. Areeda, Y. Asali, S. M. Aston, A. M. Baer, S. W. Ballmer, D. Barker, L. Barsotti, J. Bartlett, B. K. Berger, J. Betzwieser, D. Bhattacharjee, G. Billingsley, S. Biscans, R. M. Blair, N. Bode, P. Booker, R. Bork, A. Bramley, A. F. Brooks, D. D. Brown, K. C. Cannon, X. Chen, A. A. Ciobanu, S. J. Cooper, C. M. Compton, K. R. Corley, S. T. Countryman, D. C. Coyne, L. E. H. Datrier, D. Davis, C. Di Fronzo, K. L. Dooley, J. C. Driggers, P. Dupej, T. Etzel, M. Evans, T. M. Evans, J. Feicht, A. Fernandez-Galiana, P. Fritschel, P. Fulda, M. Fyffe, J. A. Giaime, K. D. Giardina, P. Godwin, S. Gras, C. Gray, R. Gray, A. C. Green, E. K. Gustafson, R. Gustafson, J. Hanks, J. Hanson, R. H. Hasskew, M. C. Heintze, N. A. Holland, J. D. Jones, S. Kandhasamy, S. Karki, M. Kasparzack, K. Kawabe, P. J. King, J. S. Kissel, R. Kumar, M. Landry, B. B. Lane, B. Lantz, Y. K. Lecoeuche, J. Leviton, J. Liu, M. Lormand, A. P. Lundgren, R. Macas, M. Macinnis, D. M. Macleod, S. Marka, Z. Marka, D. V. Martynov, K. Mason, T. J. Massinger, F. Matichard, N. Mavalvala, D. E. Mcclelland, S. Mccormick, L. Mcculler, J. Mciver, T. Mcrae, G. Mendell, E. L. Merilh, F. Meylahn, P. M. Meyers, T. Mistry, R. Mitteman, G. Moreno, C. M. Mow-Lowry, S. Mozzon, A. Mullavey, T. J. N. Nelson, L. K. Nuttall, J. Oberling, R. J. Oram, C. Osthelder, D. J. Ottaway, H. Overmier, E. Payne, R. Penhorwood, C. J. Perez, M. Pirello, K. E. Ramirez, J. W. Richardson, K. Riles, N. A. Robertson, J. G. Rollins, C. L. Romel, J. H. Romie, M. P. Ross, K. Ryan, T. Sadecki, E. J. Sanchez, L. E. Sanchez, T. R. Saravanan, D. Schaetzl, R. Schnabel, E. Schwartz, D. Sellers, T. Shaffer, D. Sigg, B. J. J. Slagmolen, J. R. Smith, B. Sorazu, A. P. Spencer, K. A. Strain, L. Sun, M. J. Szczepanczyk, M. Thomas, P. Thomas, K. A. Thorne, K. Toland, C. I. Torrie, G. Traylor, A. L. Urban, G. Vajente, D. C. Bander-Hyde, P. J. Veitch, K. Venkateswara, G. Venugopalan, A. D. Viets, T. Vo, M. Wade, R. L. Ward, J. Warner, B. Weaver, R. Weiss, C. Whittle, B. Willke, C. C. Wipf, L. Xiao, H. Yamamoto, H. Yu, L. Zhang, M. E. Zucker, J. Zweizig

Faculty Publications

The sensitivity of the advanced LIGO detectors to gravitational waves can be affected by environmental disturbances external to the detectors themselves. Since the transition from the former initial LIGO phase, many improvements have been made to the equipment and techniques used to investigate these environmental effects. These methods have aided in tracking down and mitigating noise sources throughout the first three observing runs of the advanced detector era, keeping the ambient contribution of environmental noise below the background noise levels of the detectors. In this paper we describe the methods used and how they have led to the mitigation of …

Author Correction: Rev-Erb In Gabaergic Neurons Controls Diurnal Hepatic Insulin Sensitivity (Nature, (2021), 592, 7856, (763-767), 10.1038/S41586-021-03358-W), Guolian Ding, Xin Li, Xinguo Hou, Wenjun Zhou, Yingyun Gong, Fuqiang Liu, Yanlin He, Jia Song, Jing Wang, Paul Basil, Wenbo Li, Sichong Qian, Pradip Saha, Jinbang Wang, Chen Cui, Tingting Yang, Kexin Zou, Younghun Han, Christopher I. Amos, Yong Xu, Li Chen, Zheng Sun

Division of Basic Science Faculty Publications

No abstract provided.

Breeding Ecology Of Mottled Ducks: A Review, Elizabeth S. Bonczek, Kevin M. Ringelman

Faculty Publications

Mottled ducks (Anas fulvigula) are endemic to the Gulf Coast of North America, and their range stretches from Alabama to the Laguna Madre of Mexico, with a distinct population in peninsular Florida and an introduced population in South Carolina. As one of the few non-migratory ducks in North America, mottled ducks depend on a variety of locally available habitat throughout the annual cycle, and threats to these landscapes may affect mottled ducks more acutely than migratory species. Annual population monitoring has revealed declines in mottled duck populations in Texas and Louisiana since 2008, and the genetic integrity of the Florida …

Stable Isotope Analyses Identify Trophic Niche Partitioning Between Sympatric Terrestrial Vertebrates In Coastal Saltmarshes With Differing Oiling Histories, Sydney Moyo, Hayat Bennadji, Danielle Laguaite, Anna A. Pérez-Umphrey, Allison M. Snider, Andrea Bonisoli-Alquati, Jill A. Olin, Philip C. Stouffer, Sabrina S. Taylor, Paola C. López-Duarte, Brian J. Roberts, Linda Hooper-Bui, Michael J. Polito

Faculty Publications

Bioindicator species are commonly used as proxies to help identify the ecological effects of oil spills and other stressors. However, the utility of taxa as bioindicators is dependent on understanding their trophic niche and life history characteristics, as these factors mediate their ecological responses. Seaside sparrows (Ammospiza maritima) and marsh rice rats (Oryzomys palustris) are two ubiquitous terrestrial vertebrates that are thought to be bioindicators of oil spills in saltmarsh ecosystems. To improve the utility of these omnivorous taxa as bioindicators, we used carbon and nitrogen stable isotope analysis to quantify their trophic niches at saltmarshes in coastal Louisiana with …

Hydraulic Architecture Explains Species Moisture Dependency But Not Mortality Rates Across A Tropical Rainfall Gradient, Alexandria L. Pivovaroff, Brett T. Wolfe, Nate Mcdowell, Bradley Christoffersen, Stuart Davies, L. Turin Dickman, Charlotte Grossiord, Riley T. Leff, Alistair Rogers, Shawn P. Serbin, S. Joseph Wright, Jin Wu, Chonggang Xu, Jeffrey Q. Chambers

Faculty Publications

Intensified droughts are affecting tropical forests across the globe. However, the underlying mechanisms of tree drought response and mortality are poorly understood. Hydraulic traits and especially hydraulic safety margins (HSMs), that is, the extent to which plants buffer themselves from thresholds of water stress, provide insights into species-specific drought vulnerability. We investigated hydraulic traits during an intense drought triggered by the 2015–2016 El Niño on 27 canopy tree species across three tropical forest sites with differing precipitation. We capitalized on the drought event as a time when plant water status might approach or exceed thresholds of water stress. We investigated …

Sabre: The Silicon Array For Branching Ratio Experiments, E. C. Good, B. Sudarsan, K. T. Macon, C. M. Deibel, L. T. Baby, J. C. Blackmon, C. Benetti, J. C. Esparza, N. Gerken, K. Hanselman, G. W. Mccann, A. B. Morelock, J. F. Perello, K. H. Pham, E. Rubino, E. Temanson, I. Wiedenhöver

Faculty Publications

The Silicon Array for Branching Ratio Experiments (SABRE) has been developed for use to study reactions of interest to nuclear structure and astrophysics. The array has been incorporated into the Super Enge Split-Pole Spectrograph (SE-SPS) experimental setup at Florida State University's John D. Fox accelerator laboratory to detect charged-particle decays in coincidence with reaction products detected by the SE-SPS focal plane detector. Its construction and electronics processing are discussed, as well as the commissioning data used to validate its performance.

Molecular Evolution Of Ecological Specialisation: Genomic Insights From The Diversification Of Murine Rodents, Emily Roycroft, Anang Achmadi, Colin M. Callahan, Jacob A. Esselstyn, Jeffrey M. Good, Adnan Moussalli, Kevin C. Rowe

Faculty Publications

Adaptive radiations are characterized by the diversification and ecological differentiation of species, and replicated cases of this process provide natural experiments for understanding the repeatability and pace ofmolecular evolution.During adaptive radiation, genes related to ecological specialization may be subject to recurrent positive directional selection. However, it is not clear to what extent patterns of lineage-specific ecological specialization (includingphenotypic convergence) are correlatedwithsharedsignatures of molecular evolution. To test this, we sequenced whole exomes from a phylogenetically dispersed sample of 38 murine rodent species, a group characterized bymultiple, nested adaptive radiations comprising extensive ecological and phenotypic diversity.We found that genes associatedwithimmunity, reproduction, diet, …

Variation In Soil-Test-Based Phosphorus And Potassium Rate Recommendations Across The Southern Usa, Hailin Zhang, Joao Antonangelo, John Grove, Deanna Osmond, Nathan A. Slaton, Shannon Alford, Robert Florence, Gobena Huluka, David Herring Hardy, Jason Lessl, Rory Maguire, Rao Mylavarapu, J. Larry Oldham, Eugenia M. Pena-Yewtukhiw, Tony Provin, Leticia Sonon, David Sotomayor, Jim Wang

Faculty Publications

Thirteen states associated with the Southern Extension and Research Activities Information Exchange Group-6 (SERA-IEG-6) agreed to share their soil test based P and K rate recommendations for nine major crops. The objectives were to compare fertilizer P and K rate recommendations, to look for opportunities to rationalize similar recommendations across state lines, and to examine challenges to the development of a cooperative regional approach to P and K recommendations. Mehlich-3 (eight states), Mehlich-1 (five states), or Lancaster (one state) extractions were the basis of plant available soil P (STP) and K (STK) assessment. Fertilizer recommendation philosophies (sufficiency, build and maintain, …

Optimizing Genomic-Enabled Prediction In Small-Scale Maize Hybrid Breeding Programs: A Roadmap Review, Roberto Fritsche-Neto, Giovanni Galli, Karina Lima Reis Borges, Germano Costa-Neto, Filipe Couto Alves, Felipe Sabadin, Danilo Hottis Lyra, Pedro Patric Pinho Morais, Luciano Rogério Braatz De Andrade, Italo Granato, Jose Crossa

Faculty Publications

The usefulness of genomic prediction (GP) for many animal and plant breeding programs has been highlighted for many studies in the last 20 years. In maize breeding programs, mostly dedicated to delivering more highly adapted and productive hybrids, this approach has been proved successful for both large- and small-scale breeding programs worldwide. Here, we present some of the strategies developed to improve the accuracy of GP in tropical maize, focusing on its use under low budget and small-scale conditions achieved for most of the hybrid breeding programs in developing countries. We highlight the most important outcomes obtained by the University …

Blockumulus: A Scalable Framework For Smart Contracts On The Cloud, Nikolay Ivanov, Qiben Yan, Qingyang Wang

Faculty Publications

Public blockchains have spurred the growing popularity of decentralized transactions and smart contracts, especially on the financial market. However, public blockchains exhibit their limitations on the transaction throughput, storage availability, and compute capacity. To avoid transaction gridlock, public blockchains impose large fees and per-block resource limits, making it difficult to accommodate the ever-growing high transaction demand. Previous research endeavors to improve the scalability and performance of blockchain through various technologies, such as side-chaining, sharding, secured off-chain computation, communication network optimizations, and efficient consensus protocols. However, these approaches have not attained a widespread adoption due to their inability in delivering a …

Policing Understood As A Racial Project: An Exploration Of The Role Law Enforcement Has Played In The Shaping Of Race Relations In The United States, Jahaan Chandler

LSU Doctoral Dissertations

Law enforcement and minority communities have had a complicated history in the United States to say the least. The theoretical propositions used to explain the myriad of interlocking relationships between race, criminal activity, neighborhood disorder, public perceptions of crime, and law enforcement itself, have provided us with nuggets of insight that have all contributed to enhancing our understanding of crime and policing in the U.S., but none have provided an overall interpretation of this complex and often convoluted relationship. This dissertation seeks to rectify this issue by not only examining the history of law enforcement and its relation to minority …

Barbadin Potentiates Long-Term Effects Of Lorcaserin On Pomc Neurons And Weight Loss, Yang He, Hailan Liu, Na Yin, Yongjie Yang, Chunmei Wang, Meng Yu, Hesong Liu, Chen Liang, Julia Wang, Longlong Tu, Nan Zhang, Lina Wang, Yanlin He, Makoto Fukuda, Qi Wu, Zheng Sun, Qingchun Tong, Yong Xu

Division of Basic Science Faculty Publications

Obesity is a serious global health problem because of its increasing prevalence and comorbidities, but its treatments are limited. The serotonin 2C receptor (5-HT2CR), a G-protein-coupled receptor, activates proopiomelanocortin (POMC) neurons in the arcuate nucleus of hypothalamus (ARH) to reduce appetite and weight gain. However, several 5-HT analogs targeting this receptor, e.g., lorcaserin (Lor), suffer from diminished efficacy to reduce weight after prolonged administration. Here, we show that barbadin (Bar), a novel b-arrestin/b2-adaptin inhibitor, can prevent 5-HT2CR internalization in cells and potentiate long-term effects of Lor to reduce appetite and body weight in male mice. Mechanistically, we demonstrate that Bar …

Simulation Of Compound Flood Events In Low-Gradient Coastal Watershed, Felix Luis Santiago-Collazo

LSU Doctoral Dissertations

Low-gradient coastal watersheds are susceptible to flooding caused by various flows such as rainfall, tides, and storm surge. Compound flooding occurs when at least two of these mechanisms happen simultaneously or in close succession. Different inundation models, observed data, and/or a combination of these are coupled through varying techniques involving one-way, loosely, tightly, or fully coupled approaches to assess compound flooding. This study presents a one-dimensional (1-D), fully coupled compound inundation model based on the Shallow Water equations. This model approach simultaneously simulates the free water surface variations in the ocean domain (i.e., tide and storm surge modeling), rainfall-runoff in …

Eloquence In Talke And Vertue In Deedes: Education And Discontent In Early Modern England, Mary Alison Webb

LSU Doctoral Dissertations

The title for the project, Eloquence in Talke and Vertue in Deedes, comes from educational theorist William Kempe’s claim that the early modern humanist educational system was guaranteed to produce eloquence and virtue. It is, however, my argument that the educational failed in its promises. This project seeks to dissect the educational practices of the early modern period and reanimate the pieces to show how these practices were regularly critiqued on the early modern stage. More than showing the influence of the educational system in the production of drama, I point out that these practices are re-represented as rebuttals of …

Identifying A Culturally Appropriate Stimulus For The Bangla Picture Description Task, Barnali Mazumdar

LSU Doctoral Dissertations

The absence of culture- and language-specific aphasia assessment in Bangla underscores a critical problem in Communication Sciences and Disorders. Aphasia occurs in ~41% of stroke survivors. Over 40 years, stroke incidence has doubled in the low- and middle-income countries, such as Bangladesh and India, where there are ~250 million native Bangla speakers.

This study aimed to identify an appropriate picture stimulus for the Bangla Picture Description Task (PDT) intended for inclusion in a Bangla aphasia assessment. Researchers have reported the importance of cultural relevance and three visuographic variables of a picture, i.e., high-context, color, and photograph vs. black and white …

Non-Destructive Trace Element Analysis Of Burials From Moho Cay, Belize, April Alyce Walton

LSU Master's Theses

The study of skeletal material macroscopically and microscopically can yield a plethora of information about interments’ lives. Studying bones at an elemental level can provide further details regarding dietary habits, residency, and migration patterns, which are important areas of research for Maya archaeology. Currently, research on bone composition is conducted through destructive methods, especially for archaeological bone. The use of non-destructive methods for testing bone composition such as with a portable x-ray fluorescence machine can also be suitable for the study of archaeological bone. This study has two main goals: to understand the interments' lives through strontium trace element and …

Berry-Esseen Bounds For Approximate Maximum Likelihood Estimators In The Α-Brownian Bridge, Khalifa Es-Sebaiy, Jabrane Moustaaid, Idir Ouassou

Journal of Stochastic Analysis

No abstract provided.

Mechanical Failure Of Metal/Ceramic Interfacial Regions Under Shear And Tensile Loading, Xiaoman Zhang

LSU Doctoral Dissertations

Quantitative assessment of the adhesion strength of ceramic hard coatings on substrates is a subject of great technological importance as well as current scientific relevance. Achievement of reliable and quantitative measurements of interfacial strength has proven difficult over the past two decades. In this dissertation, how the deformation and fracture behavior of ceramic/metal/substrate interfacial regions under shear and tensile loading is influenced by the structure and chemical composition of the interfacial region were observed and discussed. Interfacial shear failure experiments were carried out on focused ion beam fabricated micro pillars containing interfacial regions of ceramic/metal/substrate systems. Detailed characterization was carried …

Measurement Of The Iron Spectrum In Cosmic Rays From 10 Gev/N To 2.0 Tev/N With The Calorimetric Electron Telescope On The International Space Station, O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, E. Berti, G. Bigongiari, W. R. Binns, M. Bongi, P. Brogi, A. Bruno, J. H. Buckley, N. Cannady, G. Castellini, C. Checchia, M. L. Cherry, G. Collazuol, K. Ebisawa, H. Fuke, S. Gonzi, T. G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M. H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H. S. Krawczynski, J. F. Krizmanic, J. Link, P. Maestro, P. S. Marrocchesi, A. M. Messineo, J. W. Mitchell, S. Miyake, A. A. Moiseev, M. Mori, N. Mori, H. M. Motz, K. Munakata, S. Nakahira, J. Nishimura, G. A. De Nolfo, S. Okuno, J. F. Ormes, N. Ospina, S. Ozawa, L. Pacini, P. Papini, B. F. Rauch, S. B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, F. Stolzi, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida

Faculty Publications

The Calorimetric Electron Telescope (CALET), in operation on the International Space Station since 2015, collected a large sample of cosmic-ray iron over a wide energy interval. In this Letter a measurement of the iron spectrum is presented in the range of kinetic energy per nucleon from 10 GeV/n to 2.0 TeV/n allowing the inclusion of iron in the list of elements studied with unprecedented precision by space-borne instruments. The measurement is based on observations carried out from January 2016 to May 2020. The CALET instrument can identify individual nuclear species via a measurement of their electric charge with a dynamic …

A Generalized, Modular Approach To Treating Moving Tumors With Ion Beams, Michelle Jennifer Lis

LSU Doctoral Dissertations

Despite advancements in cancer therapy, certain indications continue to have a poor prognosis, including cancers of the thorax. Existing methods for treating moving tumors with carbon ions have shown promise, but require technologically complex facilities and still have inherent limitations to mitigating tumor motion. The goal of this dissertation was to develop and test a safe, portable, and modular motion-synchronized dose delivery system (M-DDS) and its peripheral components as a framework for studying motion mitigation with ion beams.

We designed and integrated a motion-synchronized radiotherapy approach, called multi-phase 4D delivery (MP4D), as modular units of a clinical dose delivery system. …

Tests Of General Relativity With Binary Black Holes From The Second Ligo-Virgo Gravitational-Wave Transient Catalog, R. Abbott, T. D. Abbott, S. Abraham, F. Acernese, K. Ackley, A. Adams, C. Adams, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, S. Akcay, G. Allen, A. Allocca, P. A. Altin, A. Amato, S. Anand, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Ansoldi, J. M. Antelis, S. Antier, S. Appert, K. Arai, M. C. Araya

Faculty Publications

Gravitational waves enable tests of general relativity in the highly dynamical and strong-field regime. Using events detected by LIGO-Virgo up to 1 October 2019, we evaluate the consistency of the data with predictions from the theory. We first establish that residuals from the best-fit waveform are consistent with detector noise, and that the low- and high-frequency parts of the signals are in agreement. We then consider parametrized modifications to the waveform by varying post-Newtonian and phenomenological coefficients, improving past constraints by factors of ∼2; we also find consistency with Kerr black holes when we specifically target signatures of the spin-induced …

The Mini-Captain Liquid Argon Time Projection Chamber, C. E. Taylor, B. Bhandari, J. Bian, K. Bilton, C. Callahan, J. Chaves, H. Chen, D. Cline, R. L. Cooper, D. L. Danielson, J. Danielson, N. Dokania, S. Elliot, S. Fernandes, S. Gardiner, G. Garvey, V. Gehman, F. Giuliani, S. Glavin, M. Gold, C. Grant, E. Guardincerri, T. Haines, A. Higuera, J. Y. Ji, R. Kadel, N. Kamp, A. Karlin, W. Ketchum, L. W. Koerner, D. Lee, K. Lee, Q. Liu, S. Locke, W. C. Louis, P. Madigan, A. Manalaysay, J. Maricic, E. Martin, M. J. Martinez, S. Martunenko, C. Mauger, C. Mcgrew, J. Medina, P. J. Medina, G. Mills, J. Mirabal-Martinez, A. Olivier, E. Pantic, B. Philipbar, C. Pitcher, V. Radeka, J. Ramsey, K. Rielage, M. Rosen, A. R. Sanchez, J. Shin, G. Sinnis, M. Smy, W. Sondeim, I. Stancu, C. Sterbenz, Y. Sun, R. Svoboda, A. Teymourian, C. Thorn, C. E. Tull, M. Tzanov, R. Van De Water, N. Walsh, H. Wang, Y. Wang, C. Yanagisawa, A. Yarritu, J. Yoo

Faculty Publications

This manuscript describes the commissioning of the Mini-CAPTAIN liquid argon detector in a neutron beam at the Los Alamos Neutron Science Center (LANSCE), which led to a first measurement of high-energy neutron interactions in argon. The Mini-CAPTAIN detector consists of a Time Projection Chamber (TPC) with an accompanying photomultiplier tube (PMT) array sealed inside a liquid-argon-filled cryostat. The liquid argon is constantly purified and recirculated in a closed-loop cycle during operation. The specifications and assembly of the detector subsystems and an overview of their performance in a neutron beam are reported.

Loop Quantum Black Hole Extensions Within The Improved Dynamics, Rodolfo Gambini, Javier Olmedo, Jorge Pullin

Faculty Publications

We continue our investigation of an improved quantization scheme for spherically symmetric loop quantum gravity. We find that in the region where the black hole singularity appears in the classical theory, the quantum theory contains semi-classical states that approximate general relativity coupled to an effective anisotropic fluid. The singularity is eliminated and the space-time can be continued into a white hole space-time. This is similar to previously considered scenarios based on a loop quantum gravity quantization.

Mapping Plastic Pollution In The Amite Watershed, Louisiana, Gourav Divan

LSU Master's Theses

Microplastics have quickly emerged as a concerning pollutant in both freshwater and marine environments. Their recent discovery means that their impacts are still being studied, however, it is important to continuously monitor their concentrations. An important conduit of plastic pollution to marine environments are rivers and streams. Previous models have estimated the transport of plastics from land to sea in many parts of the world. Most of these models, however, have been conducted at coarse spatial resolutions that make it difficult to establish tractable management programs to minimize this impact. Here, a previously existing model was applied to model for …

Using Distributed Techology To Make Music In The Time Of The Attention Economy, Tate Carson

LSU Doctoral Dissertations

Sounds Aware is a mobile web app that allows users to record soundwalks and share them so that other people can experience them. The creator of the soundwalk records their perceptions of the restorativeness of a specific place on the walk, these answers are then sonified for whoever experiences the walk later to hear. Sounds Aware aims to be a social app that is restorative to our attention. It does this by encouraging experience of nature and by using decentralized technology that exists outside of the attention economy.

The attention economy is discussed as a force that exists within much …