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A Performer's Guide To Two Song Collections: “Mementos Of Innocence” And “Three Yeats Songs” By Malaysian Composer Chee Yean Wong, Wu Ji Khoo Jun 2023

A Performer's Guide To Two Song Collections: “Mementos Of Innocence” And “Three Yeats Songs” By Malaysian Composer Chee Yean Wong, Wu Ji Khoo

LSU Doctoral Dissertations

Despite the flourishing existence of Asian Art Music for over half a century, relatively little has been done to advance its recognition and prominence. Through this project, the author hopes to shed light on the beauty and richness of Asian Art Music and encourage its inclusion in the repertoire of American classical music. The purpose of this document is to supply a comprehensive performer’s guide to Malaysian composer, Chee Yean Wong’s song collections: “Mementos of Innocence” and “Three Yeats Songs.” The collections feature settings of English poems by Jean Blewett, Christina Rossetti, Edwin C. Ranck, Rabindranath Tagore, and William Butler …

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Femme Fatale In Lieder: Songs Of Lorelei By Clara Schumann, Franz Liszt, And Alexander Zemlinsky, Eun Chong Kang Jun 2023

Femme Fatale In Lieder: Songs Of Lorelei By Clara Schumann, Franz Liszt, And Alexander Zemlinsky, Eun Chong Kang

LSU Doctoral Dissertations

The femme fatale, a seductive and dangerous woman, is a popular archetype found in literature, art, and music. In German literature, the character of Lorelei is a well-known example of the femme fatale. She is associated with a steep rock cliff on the Rhine River and, from the cliff, convicted of bewitching men resulting in their murder. This written document focuses on Lorelei as the femme fatale character in German literature as seen in three musical settings by composers Clara Schumann, Franz Liszt, and Alexander Zemlinsky. The document also includes limited musical analyses of and singer’s commentary on …

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Adaptive Quantum Information Processing In Non-Equilibrium Environments, Arshag Danageozian Jun 2023

Adaptive Quantum Information Processing In Non-Equilibrium Environments, Arshag Danageozian

LSU Doctoral Dissertations

Solid state and condensed matter systems, such as diamond impurities, superconductors, quantum dots, and ion traps, constitute important physical platforms for various applications in quantum information processing (QIP). However, it has consistently been shown that all such modern platforms suffer from non-equilibrium behavior on timescales that are relevant for many important QIP tasks. The causes range from intrinsic non-equilibrium dynamics (e.g. in diamond) to the presence of various impurities with their own internal dynamics (e.g. in superconductors and quantum dots) or variations in the control fields used to stabilize the quantum matter (e.g. in ion traps). When reserving degrees of …

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Multiplication Operators By White Noise Delta Functions And Associated Differential Equations, Luigi Accardi, Un Cig Ji, Kimiaki Saitô Jun 2023

Multiplication Operators By White Noise Delta Functions And Associated Differential Equations, Luigi Accardi, Un Cig Ji, Kimiaki Saitô

Journal of Stochastic Analysis

No abstract provided.

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Reasoning The Voice: Toward A Diagnostic And Prescriptive Technique In The Teaching Of Singing, Carlos E. Santelli Jun 2023

Reasoning The Voice: Toward A Diagnostic And Prescriptive Technique In The Teaching Of Singing, Carlos E. Santelli

LSU Doctoral Dissertations

Voice pedagogy literature often draws a parallel between a doctor’s ability to diagnose illness and prescribe treatment, and a voice teacher’s ability to identify vocal obstacles and design solutions. The core of these parallel procedures lies in an ability to utilize critical reasoning skills within highly specific contexts. Medical literature describes this as “clinical reasoning” and has studied it as a learned process. Voice pedagogy literature has traditionally described this as an innate process which is solely developed through experience. This document broadly examines the ways in which medical literature has broken down clinical reasoning into specific cognitive processes and …

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Opinion: How Fear Of Nuclear Winter Has Helped Save The World, So Far, Alan Robock, Lili Xia, Cheryl S. Harrison, Joshua Coupe, Owen B. Toon, Charles G. Bardeen Jun 2023

Opinion: How Fear Of Nuclear Winter Has Helped Save The World, So Far, Alan Robock, Lili Xia, Cheryl S. Harrison, Joshua Coupe, Owen B. Toon, Charles G. Bardeen

Faculty Publications

The direct effects of nuclear war would be horrific, with blasts, fires, and radiation killing and injuring many people. But in 1983, United States and Soviet Union scientists showed that a nuclear war could also produce a nuclear winter, with catastrophic consequences for global food supplies for people far removed from the conflict. Smoke from fires ignited by nuclear weapons exploded on cities and industrial targets would block out sunlight, causing dark, cold, and dry surface conditions, producing a nuclear winter, with surface temperatures below freezing even in summer for years. Nuclear winter theory helped to end the nuclear arms …

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Random Variables With Overlapping Number And Weyl Algebras Ii, Ruma Dutta, Gabriela Popa, Aurel Stan Jun 2023

Random Variables With Overlapping Number And Weyl Algebras Ii, Ruma Dutta, Gabriela Popa, Aurel Stan

Journal of Stochastic Analysis

No abstract provided.

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Food Insecurity Among Households With Children During The Early Months Of The Covid-19 Pandemic, Bailey Houghtaling, Megan M. Patton-López, Lindsey Haynes-Maslow, Nila Pradhananga, Lauri Andress, T. Elaine Prewitt, Annie Hardison-Moody, Justin D. Shanks, Michelle Grocke-Dewey, Eliza Webber, Denise Holston, Carmen Byker Shanks Jun 2023

Food Insecurity Among Households With Children During The Early Months Of The Covid-19 Pandemic, Bailey Houghtaling, Megan M. Patton-López, Lindsey Haynes-Maslow, Nila Pradhananga, Lauri Andress, T. Elaine Prewitt, Annie Hardison-Moody, Justin D. Shanks, Michelle Grocke-Dewey, Eliza Webber, Denise Holston, Carmen Byker Shanks

Faculty Publications

Understanding impacts of the COVID-19 pandemic among households with children is necessary to design appropriate public health responses that protect food and nutrition security. The objecttive of this research was to understand predictors of food insecurity during the COVID-19 pandemic among households with at least one child (<18 >years), including whether foods reported as out-ofstock were associated with the likelihood of food insecurity. An online survey using validated measures and open-ended questions was distributed to a convenience sample in five states— Louisiana, Montana, North Carolina, Oregon, and West Virginia—during the early months of the COVID-19 pandemic (April through September of …

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Deficiency In The Omega-3 Lysolipid Transporter Mfsd2a Leads To Aberrant Oligodendrocyte Lineage Development And Hypomyelination, Vetrivel Sengottuvel, Monalisa Hota, Jeongah Oh, Dwight L. Galam, Bernice H. Wong, Markus R. Wenk, Sujoy Ghosh, Federico Torta, David L. Silver Jun 2023

Deficiency In The Omega-3 Lysolipid Transporter Mfsd2a Leads To Aberrant Oligodendrocyte Lineage Development And Hypomyelination, Vetrivel Sengottuvel, Monalisa Hota, Jeongah Oh, Dwight L. Galam, Bernice H. Wong, Markus R. Wenk, Sujoy Ghosh, Federico Torta, David L. Silver

Division of Basic Science Faculty Publications

Patients with autosomal recessive microcephaly 15 caused by deficiency in the sodium-dependent lysophosphatidylcholine (LPC) transporter major facilitator superfamily domain–containing 2a (Mfsd2a) present with both microcephaly and hypomyelination, suggesting an important role for LPC uptake by oligodendrocytes in the process of myelination. Here we demonstrate that Mfsd2a is specifically expressed in oligodendrocyte precursor cells (OPCs) and is critical for oligodendrocyte development. Single-cell sequencing of the oligodendrocyte lineage revealed that OPCs from OPC-specific Mfsd2a-KO mice (2aOKO mice) underwent precocious differentiation into immature oligodendrocytes and impaired maturation into myelinating oligodendrocytes, correlating with postnatal brain hypomyelination. 2aOKO mice did not exhibit microcephaly, a finding …

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Investigation Of Iron(Iii) Tetraphenylporphyrin As A Redox Flow Battery Anolyte: Unexpected Side Reactivity With The Electrolyte, Nathan H. Mitchell, Noémie Elgrishi Jun 2023

Investigation Of Iron(Iii) Tetraphenylporphyrin As A Redox Flow Battery Anolyte: Unexpected Side Reactivity With The Electrolyte, Nathan H. Mitchell, Noémie Elgrishi

Faculty Publications

Redox flow batteries (RFBs) present an opportunity to bridge the gap between the intermittent availability of green energy sources and the need for on-demand grid level energy storage. While aqueous vanadium-based redox flow batteries have been commercialized, they are limited by the constraints of using water as an electrochemical solvent. Nonaqueous redox flow battery systems can be used to produce high voltage batteries due to the larger electrochemical window in nonaqueous solvents and the ability to tune the redox properties of active materials through functionalization. Iron porphyrins, a class of organometallic macrocycles, have been the subject of many studies for …

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Tectonic Advection Of Contacts Enhances Landscape Transience, Nate Mitchell, Adam M. Forte Jun 2023

Tectonic Advection Of Contacts Enhances Landscape Transience, Nate Mitchell, Adam M. Forte

Faculty Publications

Contrasts in bedrock erodibility have been shown to drive landscape transience, but it is unclear whether horizontal tectonic displacements would enhance such effects. Furthermore, one might expect these factors to coexist, as tectonic convergence helps to create rock strength contrasts in settings like the Himalayas. How do landscapes respond when contacts separating units are raised vertically and shifted horizontally by tectonics? To evaluate such questions, we use landscape evolution models to simulate the exposure of a weak unit in a landscape equilibrated to a strong unit. We explore different simulations varying factors like weak unit erodibility, diffusivity, contact dip, and …

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Simulations Of Intruder-Free X-Ray Transient Absorption And Time-Resolved X-Ray Scattering For Probing Attosecond Electron Dynamics, Mengqi Yang Jun 2023

Simulations Of Intruder-Free X-Ray Transient Absorption And Time-Resolved X-Ray Scattering For Probing Attosecond Electron Dynamics, Mengqi Yang

LSU Doctoral Dissertations

The motion of electrons plays a fundamental role in both physics and chemistry, and capturing such dynamics requires the ability to resolve changes at the attosecond timescale, which is enabled by the advent of ultrashort laser pulses. This dissertation aims to facilitate the interpretation of ultrafast electron dynamics and attosecond spectroscopy by real-time time-dependent density functional theory (RT-TDDFT) simulations. The first part of this dissertation focuses on improving the simulation of X-ray transient absorption spectra (XTAS) with Gaussian basis sets in RT-TDDFT by applying a filter to the transition dipole matrix. Due to the spatial limitation of atom-centered Gaussian functions, …

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Nutrition Interventions Addressing Structural Racism: A Scoping Review, Matthew Greene, Bailey Houghtaling, Claire Sadeghzadeh, Molly De Marco, De'jerra Bryant, Randa Morgan, Denise Holston Jun 2023

Nutrition Interventions Addressing Structural Racism: A Scoping Review, Matthew Greene, Bailey Houghtaling, Claire Sadeghzadeh, Molly De Marco, De'jerra Bryant, Randa Morgan, Denise Holston

Faculty Publications

African Americans experience high rates of obesity and food insecurity in part due to structural racism, or overlapping discriminatory systems and practices in housing, education, employment, health care and other settings. Nutrition education and nutrition-focused policy, systems and environmental changes may be able to address structural racism in the food environment. This scoping review aimed to summarise the available literature regarding nutrition interventions for African Americans that address structural racism in the food environment and compare them with the 'Getting to Equity in Obesity Prevention' framework of suggested interventions. An electronic literature search was conducted with the assistance of a …

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Genome-Wide Coancestry Reveals Details Of Ancient And Recent Male-Driven Reticulation In Baboons, Erik F. Sørensen, R. Alan Harris, Liye Zhang, Muthuswamy Raveendran, Lukas F.K. Kuderna, Jerilyn A. Walker, Jessica M. Storer, Martin Kuhlwilm, Claudia Fontsere, Lakshmi Seshadri, Christina M. Bergey, Andrew S. Burrell, Juraj Bergman, Jane E. Phillips-Conroy, Fekadu Shiferaw, Kenneth L. Chiou, Idrissa S. Chuma, Julius D. Keyyu, Julia Fischer, Marie Claude Gingras, Sejal Salvi, Harshavardhan Doddapaneni, Mikkel H. Schierup, Mark A. Batzer, Clifford J. Jolly, Sascha Knauf, Dietmar Zinner, Kyle K.H. Farh, Tomas Marques-Bonet, Kasper Munch, Christian Roos, Jeffrey Rogers Jun 2023

Genome-Wide Coancestry Reveals Details Of Ancient And Recent Male-Driven Reticulation In Baboons, Erik F. Sørensen, R. Alan Harris, Liye Zhang, Muthuswamy Raveendran, Lukas F.K. Kuderna, Jerilyn A. Walker, Jessica M. Storer, Martin Kuhlwilm, Claudia Fontsere, Lakshmi Seshadri, Christina M. Bergey, Andrew S. Burrell, Juraj Bergman, Jane E. Phillips-Conroy, Fekadu Shiferaw, Kenneth L. Chiou, Idrissa S. Chuma, Julius D. Keyyu, Julia Fischer, Marie Claude Gingras, Sejal Salvi, Harshavardhan Doddapaneni, Mikkel H. Schierup, Mark A. Batzer, Clifford J. Jolly, Sascha Knauf, Dietmar Zinner, Kyle K.H. Farh, Tomas Marques-Bonet, Kasper Munch, Christian Roos, Jeffrey Rogers

Faculty Publications

Baboons (genus Papio) are a morphologically and behaviorally diverse clade of catarrhine monkeys that have experienced hybridization between phenotypically and genetically distinct phylogenetic species. We used high-coverage whole-genome sequences from 225 wild baboons representing 19 geographic localities to investigate population genomics and interspecies gene flow. Our analyses provide an expanded picture of evolutionary reticulation among species and reveal patterns of population structure within and among species, including differential admixture among conspecific populations. We describe the first example of a baboon population with a genetic composition that is derived from three distinct lineages. The results reveal processes, both ancient and recent, …

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Association Of Type 2 Diabetes Subgroups With Cognitive Status Without Modification From Lifestyle Intervention, Michael P. Bancks, James Lovato, Ashok Balasubramanyam, Mace Coday, Karen C. Johnson, Medha Munshi, Candida Rebello, Lynne E. Wagenknecht, Mark A. Espeland Jun 2023

Association Of Type 2 Diabetes Subgroups With Cognitive Status Without Modification From Lifestyle Intervention, Michael P. Bancks, James Lovato, Ashok Balasubramanyam, Mace Coday, Karen C. Johnson, Medha Munshi, Candida Rebello, Lynne E. Wagenknecht, Mark A. Espeland

Clinical Research Faculty Publications

Context: Type 2 diabetes is a risk factor for incident dementia but whether risk and treatment/prevention strategies differ by diabetes subgroup is unknown. Objective: We assessed (1) whether specific type 2 diabetes (T2D) subgroups are associated with mild cognitive impairment (MCI) or probable dementia (PD), and (2) whether T2D subgroups modified the association of the Action for Health in Diabetes (Look AHEAD) multidomain intensive lifestyle intervention (ILI) with MCI/PD. Methods: We included 3760 Look AHEAD participants with T2D and overweight or obesity randomly assigned to 10 years of ILI or diabetes support and education. We used k-means clustering techniques with …

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Impact Of Maximal Exercise On Immune Cell Mobilization And Bioenergetics, James E. Stampley, Eunhan Cho, Haoyan Wang, Bailey Theall, Neil M. Johannsen, Guillaume Spielmann, Brian A. Irving Jun 2023

Impact Of Maximal Exercise On Immune Cell Mobilization And Bioenergetics, James E. Stampley, Eunhan Cho, Haoyan Wang, Bailey Theall, Neil M. Johannsen, Guillaume Spielmann, Brian A. Irving

Clinical Research Faculty Publications

Acute aerobic exercise increases the number and proportions of circulating peripheral blood mononuclear cells (PMBC) and can alter PBMC mitochondrial bioenergetics. In this study, we aimed to examine the impact of a maximal exercise bout on immune cell metabolism in collegiate swimmers. Eleven (7 M/4F) collegiate swimmers completed a maximal exercise test to measure anaerobic power and capacity. Pre- and postexercise PBMCs were isolated to measure the immune cell phenotypes and mitochondrial bioenergetics using flow cytometry and high-resolution respirometry. The maximal exercise bout increased circulating levels of PBMCs, particularly in central memory (KLRG1+/CD57−) and senescent (KLRG1+/CD57+) CD8+ T cells, whether …

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Researching Covid To Enhance Recovery (Recover) Adult Study Protocol: Rationale, Objectives, And Design, Leora I. Horwitz, Tanayott Thaweethai, Shari B. Brosnahan, Mine S. Cicek, Megan L. Fitzgerald, Jason D. Goldman, Rachel Hess, S. L. Hodder, Vanessa L. Jacoby, Michael R. Jordan, Jerry A. Krishnan, Adeyinka O. Laiyemo, Torri D. Metz, Lauren Nichols, Rachel E. Patzer, Anisha Sekar, Nora G. Singer, Lauren E. Stiles, Barbara S. Taylor, Shifa Ahmed, Heather A. Algren, Khamal Anglin, Lisa Aponte-Soto, Hassan Ashktorab, Ingrid V. Bassett, Brahmchetna Bedi, Nahid Bhadelia, Christian Bime, Marie Abele C. Bind, Lora J. Black, Andra L. Blomkalns, Hassan Brim, Mario Castro, James Chan Jun 2023

Researching Covid To Enhance Recovery (Recover) Adult Study Protocol: Rationale, Objectives, And Design, Leora I. Horwitz, Tanayott Thaweethai, Shari B. Brosnahan, Mine S. Cicek, Megan L. Fitzgerald, Jason D. Goldman, Rachel Hess, S. L. Hodder, Vanessa L. Jacoby, Michael R. Jordan, Jerry A. Krishnan, Adeyinka O. Laiyemo, Torri D. Metz, Lauren Nichols, Rachel E. Patzer, Anisha Sekar, Nora G. Singer, Lauren E. Stiles, Barbara S. Taylor, Shifa Ahmed, Heather A. Algren, Khamal Anglin, Lisa Aponte-Soto, Hassan Ashktorab, Ingrid V. Bassett, Brahmchetna Bedi, Nahid Bhadelia, Christian Bime, Marie Abele C. Bind, Lora J. Black, Andra L. Blomkalns, Hassan Brim, Mario Castro, James Chan

Division of Basic Science Faculty Publications

Importance SARS-CoV-2 infection can result in ongoing, relapsing, or new symptoms or other health effects after the acute phase of infection; termed post-acute sequelae of SARS-CoV-2 infection (PASC), or long COVID. The characteristics, prevalence, trajectory and mechanisms of PASC are ill-defined. The objectives of the Researching COVID to Enhance Recovery (RECOVER) Multi-site Observational Study of PASC in Adults (RECOVER-Adult) are to: (1) characterize PASC prevalence; (2) characterize the symptoms, organ dysfunction, natural history, and distinct phenotypes of PASC; (3) identify demographic, social and clinical risk factors for PASC onset and recovery; and (4) define the biological mechanisms underlying PASC pathogenesis. …

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Preface: Induced Resistance From Theory To Practice, Michael J. Stout Jun 2023

Preface: Induced Resistance From Theory To Practice, Michael J. Stout

Faculty Publications

No abstract provided.

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Correction To: Preface: Induced Resistance From Theory To Practice (Journal Of Chemical Ecology, (2023), 49, 5-6, (215-216), 10.1007/S10886-023-01439-W), Michael J. Stout Jun 2023

Correction To: Preface: Induced Resistance From Theory To Practice (Journal Of Chemical Ecology, (2023), 49, 5-6, (215-216), 10.1007/S10886-023-01439-W), Michael J. Stout

Faculty Publications

The correction is to add one reference ‘Bustos et al. 2022’ to the Preface of the Special Issue ‘Induced Resistance from Theory to Practice’. The original article has been corrected.

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Impact Of Zein And Lignin-Plga Biopolymer Nanoparticles Used As Pesticide Nanocarriers On Soybean Growth And Yield Under Field Conditions, Colin A.R. Bonser, Jaya Borgatta, Jason C. White, Carlos E. Astete, Cristina M. Sabliov, Jeffrey A. Davis Jun 2023

Impact Of Zein And Lignin-Plga Biopolymer Nanoparticles Used As Pesticide Nanocarriers On Soybean Growth And Yield Under Field Conditions, Colin A.R. Bonser, Jaya Borgatta, Jason C. White, Carlos E. Astete, Cristina M. Sabliov, Jeffrey A. Davis

Faculty Publications

Nanoparticles are being utilized in agriculture as fertilizers, pesticides, and agrochemical-carriers. Designed to be biocompatible and degradable, biopolymer nanoparticles were developed as an alternative to metallic nanoparticles, and though safe-by-design, polymeric nanoparticles must be field-tested prior to largescale use. Several field studies were conducted to observe detrimental effects of biopolymer nanoparticles on plant growth and yield using soybean, Glycine max (L.) Merr., as a model system. Biopolymer nanoparticles made from lignin or zein were applied as seed treatments to soybean seeds or as foliar sprays (zein only) to soybean plants. Studies using biopolymer nanoparticle seed treatments (nano-STs) measured the germination …

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Influence Of Harvest Aid On Soybean Seed Quality Affected By Delayed Harvest And Environment In Louisiana, Priscila Campos, Donnie Miller, Josh Copes, Melanie Netterville, Sebe Brown, Trey Price, David Moseley, Thanos Gentimis, Peters Egbedi, Rasel Parvej Jun 2023

Influence Of Harvest Aid On Soybean Seed Quality Affected By Delayed Harvest And Environment In Louisiana, Priscila Campos, Donnie Miller, Josh Copes, Melanie Netterville, Sebe Brown, Trey Price, David Moseley, Thanos Gentimis, Peters Egbedi, Rasel Parvej

Faculty Publications

Harvest aid application can expedite soybean (Glycine max) harvest and increase efficiency through both weed and crop desiccation and has become a common practice in Louisiana soybean production systems. Field studies in 2019–2020 evaluated the influence of harvest aid application (none, paraquat at 0.28 kg/ha, sodium chlorate at 6.72 kg/ha, or saflufenacil at 0.0498 kg/ha) on seed quality affected by delayed harvest (∼20, 30, or 44 days after optimum harvest timing, i.e., 13% seed moisture). Environment was investigated in both field (natural rainfall events) and environmentally controlled growth chambers (79 or 90°F with 30% or 100% relative humidity and exposed …

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Combining Visual Cues And Pheromone Blends For Monitoring And Management Of The Tarnished Plant Bug Lygus Lineolaris (Hemiptera: Miridae), Justin George, Gadi V.P. Reddy, Nathan Little, Sarah E.J. Arnold, David R. Hall Jun 2023

Combining Visual Cues And Pheromone Blends For Monitoring And Management Of The Tarnished Plant Bug Lygus Lineolaris (Hemiptera: Miridae), Justin George, Gadi V.P. Reddy, Nathan Little, Sarah E.J. Arnold, David R. Hall

Faculty Publications

BACKGROUND: The tarnished plant bug Lygus lineolaris (Palisot de Beauvois) is considered the most damaging pest of cotton (Gossypium hirsutum L.) in the mid-southern United States. Previous studies have reported the role of different ratios of volatile metathoracic gland components such as hexyl butyrate, (E)-2-hexenyl butyrate and (E)-4-oxo-2-hexenal in eliciting low-level attraction of L. lineolaris. In this study, we tested different visual cues (colored sticky cards) in combination with olfactory cues (pheromone blends) to optimize the attraction and capture of L. lineolaris in the field. RESULTS: Red-colored sticky cards were more attractive to L. lineolaris adults than white, blue or …

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Battling Bots: Experiences And Strategies To Mitigate Fraudulent Responses In Online Surveys, Brittney Goodrich, Marieke Fenton, Jerrod Penn, John Bovay, Travis Mountain Jun 2023

Battling Bots: Experiences And Strategies To Mitigate Fraudulent Responses In Online Surveys, Brittney Goodrich, Marieke Fenton, Jerrod Penn, John Bovay, Travis Mountain

Faculty Publications

Declining survey response rates have driven many researchers to seek out cost-effective methods of increasing participation, such as conducting surveys online, paying incentives, and using social media to engage hard-to-reach populations. Malicious actors can exploit the monetary incentives and anonymity of online surveys, threatening the integrity of survey data. We share two recent experiences conducting online surveys that were inundated with fraudulent responses. Our objective is to increase awareness of this emerging issue and offer guidance for others to mitigate the effects of fraudulent responders in their own research.

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Hypothetical Bias Mitigation In Representative And Convenience Samples, Jerrod M. Penn, Daniel R. Petrolia, J. Matthew Fannin Jun 2023

Hypothetical Bias Mitigation In Representative And Convenience Samples, Jerrod M. Penn, Daniel R. Petrolia, J. Matthew Fannin

Faculty Publications

This is a case study comparing outcomes for a probability-based representative sample versus a non-probability convenience sample for the valuation of beach condition information among Gulf of Mexico residents. We test the efficacy of several techniques used to adjust for hypothetical bias and sample weighting to reduce hypothetical willingness to pay (WTP). Weighting makes the WTP between the two samples similar, but model equivalence with respect to the significance of explanatory variables is rejected. The results support the use of certainty follow-ups, which consistently reduced WTP, regardless of the sampling approach or weighting.

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Recent Trends In Management Strategies For Two Major Maize Borers: Ostrinia Nubilalis And Sesamia Nonagrioides, Gülay Kaçar, Ana Butrón, Dimitrios Kontogiannatos, Peng Han, Maria Fernanda G.V. Peñaflor, Gema P. Farinós, Fangneng Huang, William D. Hutchison, Bruno H.S. De Souza, Rosa Ana Malvar, Anna Kourti, Ricardo Ramirez-Romero, Jocelyn L. Smith, Abdurrahman Sami Koca, Maria Pineda, Khalid Haddi Jun 2023

Recent Trends In Management Strategies For Two Major Maize Borers: Ostrinia Nubilalis And Sesamia Nonagrioides, Gülay Kaçar, Ana Butrón, Dimitrios Kontogiannatos, Peng Han, Maria Fernanda G.V. Peñaflor, Gema P. Farinós, Fangneng Huang, William D. Hutchison, Bruno H.S. De Souza, Rosa Ana Malvar, Anna Kourti, Ricardo Ramirez-Romero, Jocelyn L. Smith, Abdurrahman Sami Koca, Maria Pineda, Khalid Haddi

Faculty Publications

Stem borers (Lepidoptera) are common cereal pests. In many parts of the world, the species Ostrinia nubilalis and Sesamia nonagrioides stand out as important insect pests of economically important crops such as maize. Their management relied mainly on transgenic host plant resistance over the last 25 years. Technologies based on the insecticidal properties of Bacillus thuringiensis-derived proteins allowed widespread pest population suppression, especially for O. nubilalis. However, the recent discovery of Bt resistance, which has revitalized interest in both pests’ biology and management, may jeopardize the effectiveness of such transgenic technologies. Historical information on O. nubilalis bionomy may need to …

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Metal Transport In The Mixing Zone Of An Estuarine River To The Northern Gulf Of Mexico, Zhenwei Wu, Songjie He, Yi Jun Xu Jun 2023

Metal Transport In The Mixing Zone Of An Estuarine River To The Northern Gulf Of Mexico, Zhenwei Wu, Songjie He, Yi Jun Xu

Faculty Publications

To better understand the pollution potential of metals in estuaries heavily concentrated with petrochemical industries, we measured concentrations of total recoverable metals in the lower Calcasieu River in southwestern Louisiana that flows into the northern Gulf of Mexico. Water samples were collected at six sites along the last 88 km reach of the river monthly between May 2013 and November 2015, during which salinity ranged from 0.02 to 29.5 ppt from upstream to downstream. The samples were analyzed for a series of total recoverable metals, including aluminum (Al), arsenic (As), boron (B), cadmium (Cd), calcium (Ca), cobalt (Co), chromium (Cr), …

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Subaqueous Topographic Deformation In Abandoned Delta Lobes—A Case Study In The Yellow River Delta, China, Yunfeng Zhang, Yingying Chai, Caiping Hu, Yijun Xu, Yuyan Zhou, Huanliang Chen, Zijun Li, Shenting Gang, Shuwei Zheng Jun 2023

Subaqueous Topographic Deformation In Abandoned Delta Lobes—A Case Study In The Yellow River Delta, China, Yunfeng Zhang, Yingying Chai, Caiping Hu, Yijun Xu, Yuyan Zhou, Huanliang Chen, Zijun Li, Shenting Gang, Shuwei Zheng

Faculty Publications

Reduction in river discharge and sediment load has left deltaic lobes in the world’s many river deltas starving, but knowledge of how the subaqueous topography of these abandoned subdeltas responds to environmental changes is limited. In this study, we aimed to determine the long-term dynamics of the subaqueous seabed of abandoned delta lobes to advance current knowledge. As a case study, we selected an abandoned subdelta on the Yellow River Delta of the Bohai Sea, China, for which three-decade long (1984–2017) bathymetric data and long-term river discharge and sediment load records are available. We analyzed the seafloor surface change and …

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Reproductive Asynchrony Within Social Groups Of Female Eastern Wild Turkeys, Erin E. Ulrey, Michael J. Chamberlain, Bret A. Collier Jun 2023

Reproductive Asynchrony Within Social Groups Of Female Eastern Wild Turkeys, Erin E. Ulrey, Michael J. Chamberlain, Bret A. Collier

Faculty Publications

Coordination in timing of reproduction is driven by multiple ecological and sociobiological processes for a wide array of species. Eastern wild turkeys (Meleagris gallopavo silvestris) use a male dominance polygynous mating system, where males communicate with females via elaborate courtship displays and vocalizations at display sites. Most females prefer to mate with dominant males; therefore, asynchronous breeding and nesting may occur which can disproportionately influence individual fitness within breeding groups. For female wild turkeys, there are reproductive advantages associated with earlier nesting. As such, we evaluated reproductive asynchrony within and between groups of GPS-tagged female eastern wild turkeys based on …

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Indirect Functional Effects Of Neighbors On Food Web Compartments Could Not Overcome Density-Dependent Limited Growth Of A Grazing Minnow, Garrett W. Hopper, Keith B. Gido, Caryn C. Vaughn Jun 2023

Indirect Functional Effects Of Neighbors On Food Web Compartments Could Not Overcome Density-Dependent Limited Growth Of A Grazing Minnow, Garrett W. Hopper, Keith B. Gido, Caryn C. Vaughn

Faculty Publications

Ecosystems include diverse taxonomic and functional groups of animals with variable levels of niche overlap that can lead to direct and indirect interactions with positive or negative outcomes. Species feeding at low trophic positions might be sensitive to interactions with co-occurring functional groups (neighbors) that influence their food resources through various processes, such as indirect nutrient subsidies and trophic cascades. Employing a target-neighbor experimental design using large, outdoor mesocosms, we tested whether adding neighbors with different functional traits affected food web compartments relative to a control group that had grazing minnows, Campostoma anomalum (Central Stoneroller). Additionally, we tested whether growth …

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A Delayed Intervention Start Randomized Controlled Trial Of High- And Low-Tech Communication Training Approaches For School-Age Autistic Children With Co-Occurring Intellectual Disability, Shawn P. Gilroy, Joseph P. Mccleery, Geraldine Leader Jun 2023

A Delayed Intervention Start Randomized Controlled Trial Of High- And Low-Tech Communication Training Approaches For School-Age Autistic Children With Co-Occurring Intellectual Disability, Shawn P. Gilroy, Joseph P. Mccleery, Geraldine Leader

Faculty Publications

The researchers designed a delayed intervention start randomized controlled trial to compare improvements in functional communication following augmentative and alternative communication (AAC) interventions. The study compared outcomes from function-based applied behavior analytic (ABA) and eclectic non-ABA forms of classroom-based communication strategies (waitlist control) as well as from high- and low-tech forms of AAC. High-tech AAC consisted of tablet-based communication, and low-tech AAC used an exchange of picture cards. The community-based sample consisted of 29 autistic children with a co-occurring intellectual disability. Participants were randomized to groups (AAC, waitlist control), and each group received approximately 3 months of communication intervention. Multilevel …

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