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Surface And Bulk Properties Of Multi-Component Metal Alloys, Frank A. Mckay Iii Mar 2024

Surface And Bulk Properties Of Multi-Component Metal Alloys, Frank A. Mckay Iii

LSU Doctoral Dissertations

While HEAs have been studied extensively for their material properties, their potential as catalysts remains widely unexplored. To explore the feasibility of CoCrFeNi as a catalyst for the hydrogen evolution reaction, the results of X-ray photoelectron spectroscopy (XPS) and high-resolution electron energy loss spectroscopy (HREELS) experiments are compared to electrochemical experiments and theoretical calculations. XPS shows that this surface forms passive oxides with a propensity of Cr > Fe > Co, with no evidence of Ni oxidation. From comparison to calculations, it is shown that the electrochemical activity is enhanced in a partially oxidized state. The lack of Ni oxidation suggests that …


Antifungal Efficacy Of Nanodelivered Azoxystrobin Against Rhizoctonia Solani In Soybean (Glycine Max), Eban A. Hanna, Carlos E. Astete, Trey Price, Carlos Tamez, Omar E. Mendez, Alvaro Garcia, Fannyuy V. Kewir, Jason C. White, Cristina M. Sabliov Mar 2024

Antifungal Efficacy Of Nanodelivered Azoxystrobin Against Rhizoctonia Solani In Soybean (Glycine Max), Eban A. Hanna, Carlos E. Astete, Trey Price, Carlos Tamez, Omar E. Mendez, Alvaro Garcia, Fannyuy V. Kewir, Jason C. White, Cristina M. Sabliov

Faculty Publications

Zein nanoparticles (ZNP) (189.4 ± 2.0 nm, +25.7 ± 0.9 mV) and lignin nanoparticles (LNP) (173.6 ± 0.9 nm, - 56.5 ± 2.8 mV) with loaded azoxystrobin (AZO) (5.2 ± 0.8 and 5.5 ± 0.7 wt %, respectively) were designed as antifungal delivery systems for seed treatments. Both particles followed pseudo-first-order kinetics for AZO release at 25 °C, with AZO releasing faster from ZNP. AZO-entrapped ZNP treatments produced the greatest yield (41.15 bushels), followed by empty LNP (40.35 bushels) for inoculated samples; these findings were comparable to yields achieved with the commercial AZO formulation, Dynasty. The stand per row feet …


Effects Of Social Media Use Disparities On Community Resilience To Disasters, Kejin Wang Mar 2024

Effects Of Social Media Use Disparities On Community Resilience To Disasters, Kejin Wang

LSU Doctoral Dissertations

With the rapid development of social media, many researchers chose to use social media data to conduct studies of disaster resilience. This dissertation addresses three fundamental challenges related to social media use and disaster resilience analysis including: how the spatial analysis scale affects the results of social media use disparity and its impacts on disaster resilience; how different vulnerability and resilience measurement methods can generate very different results; and how social media use disparity can be identified to help improve the fairness of AI-based emergency rescue model development. Therefore, the first part of the dissertation measured the relationships between disparities …


Multi-Decadal Coastal Acidification In The Northern Gulf Of Mexico Driven By Climate Change And Eutrophication, Zong Pei Jiang, Cao Qin, Yiwen Pan, Chengfeng Le, Nancy Rabalais, Robert Eugene Turner, Katja Fennel, Kui Wang, Wei Jun Cai Mar 2024

Multi-Decadal Coastal Acidification In The Northern Gulf Of Mexico Driven By Climate Change And Eutrophication, Zong Pei Jiang, Cao Qin, Yiwen Pan, Chengfeng Le, Nancy Rabalais, Robert Eugene Turner, Katja Fennel, Kui Wang, Wei Jun Cai

Faculty Publications

Coastal waters often experience enhanced ocean acidification due to the combined effects of climate change and regional biological and anthropogenic activities. Through reconstructing summertime bottom pH in the northern Gulf of Mexico from 1986 to 2019, we demonstrated that eutrophication-fueled respiration dominated bottom pH changes on intra-seasonal and interannual timescales, resulting in recurring acidification coinciding with hypoxia. However, the multi-decadal acidification trend was principally driven by rising atmospheric CO2 and ocean warming, with more acidified and less buffered hypoxic waters exhibiting a higher rate of pH decline (− 0.0023 yr− 1) compared to non-hypoxic waters (− 0.0014 yr …


Coherent States Of The Laguerre–Gauss Modes, M. P. Morales Rodríguez, O. S. Magaña-Loaiza, B. Perez-Garcia, L. M. Nieto Calzada, F. Marroquín Gutiérrrez, B. M. Rodríguez-Lara Mar 2024

Coherent States Of The Laguerre–Gauss Modes, M. P. Morales Rodríguez, O. S. Magaña-Loaiza, B. Perez-Garcia, L. M. Nieto Calzada, F. Marroquín Gutiérrrez, B. M. Rodríguez-Lara

Faculty Publications

Large quantum photonic systems hold promise for surpassing classical computational limits, yet their state preparation remains a challenge. We propose an alternative approach to study multiparticle dynamics by mapping the excitation mode of these systems to physical properties of the Laguerre–Gauss modes. We construct coherent states establishing a direct link between excitation number dynamics and the evolution of the Laguerre–Gauss modes. This highlights the photon transverse spatial degree of freedom as a versatile platform for testing the fundamental aspects of quantum multiparticle systems.


In-Person, Hybrid, Or Remote: Exploring The Effectiveness Of Teacher Practices On Student Performance During The Covid-19 Pandemic, Ashley M. Segalla Mar 2024

In-Person, Hybrid, Or Remote: Exploring The Effectiveness Of Teacher Practices On Student Performance During The Covid-19 Pandemic, Ashley M. Segalla

LSU Doctoral Dissertations

Schools and universities had to make unexpected changes beginning in Spring 2020 because of the COVID-19 pandemic. In Spring 2021, one university in the southern region of the United States implemented hybrid teaching formats in College Algebra courses, where students attended half of the classes in-person, and the remaining half of classes were attended synchronously and remotely. The purpose of this mixed methods study was to determine if students’ attendance methods (virtual or in-person) impacted their academic performance in the course. Additionally, the study sought to determine how students and the instructor felt student performance was impacted by hybrid attendance. …


Investigating Gulf Coast Aquifer System: Stratigraphy Reconstruction, Inverse Modeling, And Groundwater Stress Assessment, Shuo Yang Mar 2024

Investigating Gulf Coast Aquifer System: Stratigraphy Reconstruction, Inverse Modeling, And Groundwater Stress Assessment, Shuo Yang

LSU Doctoral Dissertations

The Mississippi Embayment aquifer system (MEAS) and the Coastal Lowlands aquifer system (CLAS) provide substantial groundwater resources for human activities in the U.S. Gulf Coastal Plain. However, the overexploitation has led to groundwater depletion in the MEAS and the CLAS, threatening sustainable groundwater use. Such concern highlights the crucial need for an advanced understanding of stratigraphy and groundwater in these aquifer systems, which is essential for effective regional groundwater management. This dissertation presents a comprehensive investigation of MEAS and CLAS in the Louisiana and southwestern Mississippi region, encompassing three fundamental dimensions: stratigraphy reconstruction, groundwater modeling, and groundwater stress assessments. A …


Halosulfuron Plus Prosulfuron And Propanil Interactions For Weed Control In Louisiana Rice Production, John A. Williams Mar 2024

Halosulfuron Plus Prosulfuron And Propanil Interactions For Weed Control In Louisiana Rice Production, John A. Williams

LSU Master's Theses

A greenhouse study was conducted on November 18, and December 2, 2020 at Louisiana State University in Baton Rouge, Louisiana to evaluate the interaction between a pre-packaged mixture of halosulfuron plus prosulfuron mixed with propanil for alligatorweed control. Antagonism occurred when halosulfuron plus prosulfuron at 55 g ha-1 was mixed with propanil at 2,242 g ha-1 at all evaluation dates and antagonism was also observed with halosulfuron plus prosulfuron at 83 g ha-1 mixed with propanil at 2,242 g ha-1 at all evaluation dates except 14 DAT with observed controls of 69 to 77% compared with expected controls of 94 …


Reconsidering The Reliability Of Chemical Process Simulators I: Implementation Of The Murphree And Vaporization Efficiencies, Zachary Braswell, Brian F. Hanley, Holt Ragsdale Mar 2024

Reconsidering The Reliability Of Chemical Process Simulators I: Implementation Of The Murphree And Vaporization Efficiencies, Zachary Braswell, Brian F. Hanley, Holt Ragsdale

Faculty Publications

Most chemical process simulators in widespread use today allow users to apply some type of efficiency correction to individual equilibrium stages or to equilibrium stage sections in order to align the stage or section separation performance more closely to actual tray performance in the field. Some simulators even allow for the use of component efficiencies on individual stages or in stage sections. It is our contention, however, that two of the more commonly available efficiency models, the vaporization efficiency and Murphree vapor phase efficiency, have generally been implemented incorrectly. The three major conceptual inconsistencies are (1) the assumption that the …


"In The Footsteps Of Hercules": The Influence Of Classical Antiquity On Eighteenth-Century Militaries, Scott Madere Mar 2024

"In The Footsteps Of Hercules": The Influence Of Classical Antiquity On Eighteenth-Century Militaries, Scott Madere

LSU Doctoral Dissertations

This project examines the pervasive influence of ancient Roman and Greek figures, historical events, literature, and military methods on the leaders and practitioners of eighteenth-century warfare. Rulers, generals, military theorists, and officers frequently consulted classical histories and literature for solutions to the common military problems of the period – tactical, operational, and strategic – showing remarkable faith in ancient military methods despite their growing dependence on gunpowder weaponry and related technologies. This dissertation examines why this was the case and concludes that classical antiquity not only maintained the credibility of its wisdom in the context of modern warfare, but also …


Adverse Birth Outcomes And Childhood Overweight At Age Of 3–8 Years In A Prospective Cohort Study In Tianjin, China, Rui Zhang, Ming Gao, Weiqin Li, Hongyan Liu, Shuting Wang, Hui Wang, Ninghua Li, Jing Li, Zhijie Yu, Gang Hu, Junhong Leng, Xilin Yang Mar 2024

Adverse Birth Outcomes And Childhood Overweight At Age Of 3–8 Years In A Prospective Cohort Study In Tianjin, China, Rui Zhang, Ming Gao, Weiqin Li, Hongyan Liu, Shuting Wang, Hui Wang, Ninghua Li, Jing Li, Zhijie Yu, Gang Hu, Junhong Leng, Xilin Yang

Population and Public Health Science Faculty Publications

Objectives To explore associations between adverse birth outcomes and childhood overweight at 3–8 years of age. Design A prospective cohort study. Setting Six central urban districts of Tianjin, China. Participants 1681 woman–child pairs. Methods 1681 woman–child pairs were followed up for 8 years in Tianjin, China. Demographic and clinical information including birth outcomes was collected longitudinally, commencing from first antenatal care visit till postpartum period. Offspring height and weight were measured at 3–8 years of age. High and low weight/ length ratios (WLR) at birth were, respectively, defined as ≥90th and ≤10th gestational week and sex-specific percentiles. Overweight for children …


Pal-Bert: An Improved Question Answering Model, Wenfeng Zheng, Siyu Lu, Zhuohang Cai, Ruiyang Wang, Lei Wang, Lirong Yin Mar 2024

Pal-Bert: An Improved Question Answering Model, Wenfeng Zheng, Siyu Lu, Zhuohang Cai, Ruiyang Wang, Lei Wang, Lirong Yin

Faculty Publications

In the field of natural language processing (NLP), there have been various pre-training language models in recent years, with question answering systems gaining significant attention. However, as algorithms, data, and computing power advance, the issue of increasingly larger models and a growing number of parameters has surfaced. Consequently, model training has become more costly and less efficient. To enhance the efficiency and accuracy of the training process while reducing the model volume, this paper proposes a first-order pruning model PAL-BERT based on the ALBERT model according to the characteristics of question-answering (QA) system and language model. Firstly, a first-order network …


Computational Design Of An Electro-Organocatalyst For Conversion Of Co2 Into Formaldehyde, Foroogh Khezeli, Craig Plaisance Mar 2024

Computational Design Of An Electro-Organocatalyst For Conversion Of Co2 Into Formaldehyde, Foroogh Khezeli, Craig Plaisance

Faculty Publications

Density functional theory calculations employing a hybrid implicit/explicit solvation method were used to explore a new strategy for electrochemical conversion of CO2 using an electro-organocatalyst. A particular structural motif is identified that consists of an electron-rich vicinal enediamine (>N-C═C-N<) backbone, which is capable of activating CO2 by the formation of a C-C bond while subsequently facilitating the transfer of electrons from a chemically inert cathode to ultimately produce formaldehyde. Unlike transition metal-based electrocatalysts, the electro-organocatalyst is not constrained by scaling relations between the formation energies of activated CO2 and adsorbed CO, nor is it expected to be active for the competing hydrogen evolution reaction. The rate-limiting steps are found to occur during two proton-coupled electron transfer (PCET) sequences and are associated with the transfer of a proton from a proton transfer mediator to a carbon atom on the electro-organocatalyst. The difficulty of this step in the second PCET sequence necessitates an electrode potential of −0.85 V vs RHE to achieve the maximum turnover frequency. In addition, it is postulated that the electro-organocatalyst should also be capable of forming long-chain aldehydes by successively carrying out reductive aldol condensation to grow the alkyl chain one carbon at a time.


Examining The Effects Of Differential Reinforcement And Time-Out On Unsafe Playground Behavior, Elizabeth K. Linton Mar 2024

Examining The Effects Of Differential Reinforcement And Time-Out On Unsafe Playground Behavior, Elizabeth K. Linton

LSU Master's Theses

The purpose of this study was to examine the effects of differential reinforcement (DRO) without extinction, and then the additive effects of time-out, on reducing unsafe playground behavior. The results of the DRO in isolation phase indicated that DRO alone was only consistently effective in reducing or eliminating unsafe behavior for one out of four participants. The other three participants moved on to the multielement comparison where the combination of DRO and time-out (DRO+TO) condition was added. The DRO+TO condition reduced and eliminated unsafe playground behavior for all participants who experienced the condition. Those participants engaged in higher levels of …


Food Insecurity And Premature Mortality And Life Expectancy In The Us, Hao Ma, Xuan Wang, Xiang Li, Yoriko Heianza, Peter T. Katzmarzyk, Oscar H. Franco, Lu Qi Mar 2024

Food Insecurity And Premature Mortality And Life Expectancy In The Us, Hao Ma, Xuan Wang, Xiang Li, Yoriko Heianza, Peter T. Katzmarzyk, Oscar H. Franco, Lu Qi

Population and Public Health Science Faculty Publications

IMPORTANCE Food insecurity has been linked to multiple causes of disease and premature mortality; however, its association with mortality by sex and across racial and ethnic groups remains unknown in the US. OBJECTIVE To investigate the associations of the entire range of food security with all-cause premature mortality and life expectancy across racial and ethnic and sex groups in US adults. DESIGN, SETTING, AND PARTICIPANTS This cohort study included adults (aged ≥18 years) who participated in the National Health and Nutrition Examination Survey from 1999 to 2018, with linkage to the National Death Index through December 31, 2019. Data analysis …


A Characterization Of The Operator Entropy In Terms Of An Isometry Property Related To Trace Norms, Ryo Inayoshi Mar 2024

A Characterization Of The Operator Entropy In Terms Of An Isometry Property Related To Trace Norms, Ryo Inayoshi

Journal of Stochastic Analysis

No abstract provided.


Deconstructing The Mangrove Carbon Cycle: Gains, Transformation, And Losses, M. F. Adame, N. Cormier, P. Taillardat, N. Iram, A. Rovai, T. M. Sloey, E. S. Yando, J. F. Blanco-Libreros, M. Arnaud, T. Jennerjahn, C. E. Lovelock, D. Friess, G. M.S. Reithmaier, C. A. Buelow, S. M. Muhammad-Nor, R. R. Twilley, R. A. Ribeiro Mar 2024

Deconstructing The Mangrove Carbon Cycle: Gains, Transformation, And Losses, M. F. Adame, N. Cormier, P. Taillardat, N. Iram, A. Rovai, T. M. Sloey, E. S. Yando, J. F. Blanco-Libreros, M. Arnaud, T. Jennerjahn, C. E. Lovelock, D. Friess, G. M.S. Reithmaier, C. A. Buelow, S. M. Muhammad-Nor, R. R. Twilley, R. A. Ribeiro

Faculty Publications

Mangroves are one of the most carbon-dense forests on the Earth and have been highlighted as key ecosystems for climate change mitigation and adaptation. Hundreds of studies have investigated how mangroves fix, transform, store, and export carbon. Here, we review and synthesize the previously known and emerging carbon pathways in mangroves, including gains (woody biomass accumulation, deadwood accumulation, soil carbon sequestration, root and litterfall production), transformations (food web transfer through herbivory, decomposition), and losses (respiration as CO2 and CH4, litterfall export, particulate and dissolved carbon export). We then review the technologies available to measure carbon fluxes in mangroves, their potential, …


Exploring Successful Implementation Of Organizational Supports At The Worksite Environment: A Mixed Methods Approach, Renee A. Underwood, Ralph J. Wood, Alexandra D. Tomchek, Michael D. Celestin, Richard Culbertson, Stephen Phillippi, Stephanie T. Broyles Mar 2024

Exploring Successful Implementation Of Organizational Supports At The Worksite Environment: A Mixed Methods Approach, Renee A. Underwood, Ralph J. Wood, Alexandra D. Tomchek, Michael D. Celestin, Richard Culbertson, Stephen Phillippi, Stephanie T. Broyles

Population and Public Health Science Faculty Publications

While there is evidence that organizational supports may lead to better employee health, research on implementing such organizational supports is lacking. This research sought to understand organizational supports and implementation of those supports using an Explanatory Sequential Mixed Methods design approach. Employee survey responses (n = 202) were used to classify organizations into “high” and “low” categories for employee-reported health behavior improvement, agreement, and readiness for implementing change. For the qualitative phase of research (organization-level), semi-structured interviews were conducted with organization leads, and data were analyzed through constant comparative analysis procedure. Analyses sought to identify differences between “high” versus “low” …


Transformative Insights: Break Up With Salt (Buws) Program’S Short-Term Influence On Hypertension Risk Factors, Jean Pierre Enriquez, Helena Salgado, Christopher Kuetsinya, Li Hsiang Lin, Elizabeth Gollub Mar 2024

Transformative Insights: Break Up With Salt (Buws) Program’S Short-Term Influence On Hypertension Risk Factors, Jean Pierre Enriquez, Helena Salgado, Christopher Kuetsinya, Li Hsiang Lin, Elizabeth Gollub

Faculty Publications

Break Up with Salt (BUWS) is a four-session community-based nutrition education program aimed at reducing key controllable hypertension risk factors. This pilot study utilized a pre-post survey design to assess short-term outcomes on food behaviors (including DASH diet eating patterns), physical activity, and overall well-being, in two groups of participants. The first “pilot” group (n = 25) completed a comprehensive, 16-item survey; the second “abbreviated” group (n = 27) completed a 5-item survey. The pilot group experienced improvements in whole grain (p = 0.04), sweetened beverage consumption, watching/reducing sodium (p = 0.04) and fat (p = 0.05) consumption, and time …


Two-Pore Potassium Channel Trek-1 (K2p2.1) Regulates Nlrp3 Inflammasome Activity In Macrophages, Camille N. Immanuel, Bin Teng, Brittany E. Dong, Elizabeth M. Gordon, Charlean Luellen, Benjamin Lopez, Jeffrey Harding, Stephania A. Cormier, Elizabeth A. Fitzpatrick, Andreas Schwingshackl, Christopher M. Waters Mar 2024

Two-Pore Potassium Channel Trek-1 (K2p2.1) Regulates Nlrp3 Inflammasome Activity In Macrophages, Camille N. Immanuel, Bin Teng, Brittany E. Dong, Elizabeth M. Gordon, Charlean Luellen, Benjamin Lopez, Jeffrey Harding, Stephania A. Cormier, Elizabeth A. Fitzpatrick, Andreas Schwingshackl, Christopher M. Waters

Division of Basic Science Faculty Publications

Because of the importance of potassium efflux in inflammasome activation, we investigated the role of the two-pore potassium (K2P) channel TREK-1 in macrophage inflammasome activity. Using primary alveolar macrophages (AMs) and bone marrow-derived macrophages (BMDMs) from wild-type (wt) and TREK-1–/– mice, we measured responses to inflammasome priming [using lipopolysaccharide (LPS)] and activation (LPS þ ATP). We measured IL-1b, caspase-1, and NLRP3 via ELISA and Western blot. A membrane-permeable potassium indicator was used to measure potassium efflux during ATP exposure, and a fluorescence-based assay was used to assess changes in membrane potential. Inflammasome activation induced by LPS þ ATP increased IL-1b …


Growing The Next Generation Of Horticulture Customers And Stakeholders Through Industry And Extension Outreach Collaborations1, Natalie Bumgarner, Alicia Rihn, Julie Campbell, Sheri Dorn, Heather Kirk-Ballard Mar 2024

Growing The Next Generation Of Horticulture Customers And Stakeholders Through Industry And Extension Outreach Collaborations1, Natalie Bumgarner, Alicia Rihn, Julie Campbell, Sheri Dorn, Heather Kirk-Ballard

Faculty Publications

As the horticulture consumer base transitions to younger generations, educational outreach collaborations between Extension and industry could be a mutually beneficial way to serve an increasingly diverse customer audience. A recent study investigated drivers of, and opportunities for, increased participation in plant-related activities using an online survey of 2,134 respondents. Both participants and non-participants in plant-related activities were surveyed. Some of the commonly cited reasons for non-participation were a lack of knowledge and overall success, illustrating an opportunity for education to be beneficial. While many plant retailers may not have the personnel or resources to engage widely in education, collaborations …


An Island ‘Endemic’ Born Out Of Hybridization Between Introduced Lineages, Jessie F. Salter, Robb T. Brumfield, Brant C. Faircloth Mar 2024

An Island ‘Endemic’ Born Out Of Hybridization Between Introduced Lineages, Jessie F. Salter, Robb T. Brumfield, Brant C. Faircloth

Faculty Publications

Humans have profoundly impacted the distribution of plant and animal species over thousands of years. The most direct example of these effects is human-mediated movement of individuals, either through translocation of individuals within their range or through the introduction of species to new habitats. While human involvement may be suspected in species with obvious range disjunctions, it can be difficult to detect natural versus human-mediated dispersal events for populations at the edge of a species' range, and this uncertainty muddles how we understand the evolutionary history of populations and broad biogeographical patterns. Studies combining genetic data with archaeological, linguistic and …


Response To “The Importance Of Diversity In Obesity Articles”, Michael Jensen, Leanne Redman Mar 2024

Response To “The Importance Of Diversity In Obesity Articles”, Michael Jensen, Leanne Redman

Clinical Research Faculty Publications

No abstract provided.


Effects Of Testosterone Enanthate On Aggression, Risk-Taking, Competition, Mood, And Other Cognitive Domains During 28 Days Of Severe Energy Deprivation, Harris R. Lieberman, John A. Caldwell, Oshin Vartanian, Owen T. Carmichael, J. Philip Karl, Claire E. Berryman, Kishore M. Gadde, Philip J. Niro, Melissa N. Harris, Jennifer C. Rood, Stefan M. Pasiakos Mar 2024

Effects Of Testosterone Enanthate On Aggression, Risk-Taking, Competition, Mood, And Other Cognitive Domains During 28 Days Of Severe Energy Deprivation, Harris R. Lieberman, John A. Caldwell, Oshin Vartanian, Owen T. Carmichael, J. Philip Karl, Claire E. Berryman, Kishore M. Gadde, Philip J. Niro, Melissa N. Harris, Jennifer C. Rood, Stefan M. Pasiakos

Clinical Research Faculty Publications

Rationale: Behavioral effects of testosterone depend on dose, acute versus sustained formulation, duration of administration, personality, genetics, and endogenous levels of testosterone. There are also considerable differences between effects of endogenous and exogenous testosterone. Objectives: This study was the secondary behavioral arm of a registered clinical trial designed to determine if testosterone protects against loss of lean body mass and lower-body muscle function induced by a severe energy deficit typical of sustained military operations. Methods: Behavioral effects of repeated doses of testosterone on healthy young men whose testosterone was reduced by severe energy deficit were examined. This was a double-blind, …


Predictors Of Racial Differences In Weight Loss: The Propel Trial, Robert L. Newton, Dachaun Zhang, William D. Johnson, Corby K. Martin, John W. Apolzan, Kara D. Denstel, Phillip J. Brantley, Terry C. Davis, Connie Arnold, Daniel F. Sarpong, Eboni G. Price-Haywood, Carl J. Lavie, Tina K. Thethi, Peter T. Katzmarzyk Mar 2024

Predictors Of Racial Differences In Weight Loss: The Propel Trial, Robert L. Newton, Dachaun Zhang, William D. Johnson, Corby K. Martin, John W. Apolzan, Kara D. Denstel, Phillip J. Brantley, Terry C. Davis, Connie Arnold, Daniel F. Sarpong, Eboni G. Price-Haywood, Carl J. Lavie, Tina K. Thethi, Peter T. Katzmarzyk

Clinical Research Faculty Publications

Objective: Studies have consistently shown that African American individuals lose less weight in response to behavioral interventions, but the mechanisms leading to this result have been understudied. Methods: Data were derived from the PROmoting Successful Weight Loss in Primary CarE in Louisiana (PROPEL) study, which was a cluster-randomized, two-arm trial conducted in primary care clinics. In the PROPEL trial, African American individuals lost less weight compared with patients who belonged to other racial groups after 24 months. In the current study, counterfactual mediation analyses among 445 patients in the intervention arm of PROPEL were used to determine which variables mediated …


Exercise-Induced Changes In Central Adiposity During An Rct: Effect Of Exercise Dose And Associations With Compensation, James L. Dorling, John W. Apolzan, Neil M. Johannsen, Diana M. Thomas, Christoph Höchsmann, Daniel S. Hsia, Corby K. Martin Mar 2024

Exercise-Induced Changes In Central Adiposity During An Rct: Effect Of Exercise Dose And Associations With Compensation, James L. Dorling, John W. Apolzan, Neil M. Johannsen, Diana M. Thomas, Christoph Höchsmann, Daniel S. Hsia, Corby K. Martin

Clinical Research Faculty Publications

Context: Exercise can decrease central adiposity, but the effect of exercise dose and the relationship between central adiposity and exercise-induced compensation is unclear. Objective: Test the effect of exercise dose on central adiposity change and the association between central adiposity and exercise-induced weight compensation. Methods: In this ancillary analysis of a 6-month randomized controlled trial, 170 participants with overweight or obesity (mean ± SD body mass index: 31.5 ± 4.7 kg/m2) were randomized to a control group or exercise groups that reflected exercise recommendations for health (8 kcal/kg/ week [KKW]) or weight loss and weight maintenance (20 KKW). Waist circumference …


Coastal Wetland Restoration Through The Lens Of Odum's Theory Of Ecosystem Development, Friedrich W. Keppeler, Annette S. Engel, Linda M. Hooper-Bùi, Paola C. López-Duarte, Charles W. Martin, Jill A. Olin, Katelyn J. Lamb, Michael J. Polito, Nancy N. Rabalais, Brian J. Roberts, Erick M. Swenson, Olaf P. Jensen Mar 2024

Coastal Wetland Restoration Through The Lens Of Odum's Theory Of Ecosystem Development, Friedrich W. Keppeler, Annette S. Engel, Linda M. Hooper-Bùi, Paola C. López-Duarte, Charles W. Martin, Jill A. Olin, Katelyn J. Lamb, Michael J. Polito, Nancy N. Rabalais, Brian J. Roberts, Erick M. Swenson, Olaf P. Jensen

Faculty Publications

Advancing ecological restoration assessments requires a more detailed consideration of species interactions and ecosystem processes. Most restoration projects rely on a few metrics not always directly linked with ecological theory. Here, we used Odum's theory of ecosystem development to assess and compare the ecosystem structure and services of created marshes (4–6 years old) with preexisting, reference marshes in a brackish water region of the Mississippi River Delta. We built ecosystem models for created and reference marshes that integrated large datasets of stomach contents, stable isotopes, and taxa abundances. Despite strong resemblance in community structure, created marshes were at an earlier …


Searches For Baryon Number Violation In Neutrino Experiments: A White Paper, P. S.B. Dev, L. W. Koerner, S. Saad, S. Antusch, M. Askins, K. S. Babu, J. L. Barrow, J. Chakrabortty, A. De Gouvêa, Z. Djurcic, S. Girmohanta, I. Gogoladze, M. C. Goodman, A. Higuera, D. Kalra, G. Karagiorgi, E. Kearns, V. A. Kudryavtsev, T. Kutter, M. Malinský, D. A. Martinez Caicedo, R. N. Mohapatra, P. Nath, S. Nussinov, J. P. Ochoa-Ricoux, V. Pec, A. Rafique, J. Rodriguez Rondon, R. Shrock, H. W. Sobel, T. Stokes, M. Strait, R. Svoboda Mar 2024

Searches For Baryon Number Violation In Neutrino Experiments: A White Paper, P. S.B. Dev, L. W. Koerner, S. Saad, S. Antusch, M. Askins, K. S. Babu, J. L. Barrow, J. Chakrabortty, A. De Gouvêa, Z. Djurcic, S. Girmohanta, I. Gogoladze, M. C. Goodman, A. Higuera, D. Kalra, G. Karagiorgi, E. Kearns, V. A. Kudryavtsev, T. Kutter, M. Malinský, D. A. Martinez Caicedo, R. N. Mohapatra, P. Nath, S. Nussinov, J. P. Ochoa-Ricoux, V. Pec, A. Rafique, J. Rodriguez Rondon, R. Shrock, H. W. Sobel, T. Stokes, M. Strait, R. Svoboda

Faculty Publications

Baryon number conservation is not guaranteed by any fundamental symmetry within the standard model, and therefore has been a subject of experimental and theoretical scrutiny for decades. So far, no evidence for baryon number violation has been observed. Large underground detectors have long been used for both neutrino detection and searches for baryon number violating processes. The next generation of large neutrino detectors will seek to improve upon the limits set by past and current experiments and will cover a range of lifetimes predicted by several Grand Unified Theories. In this White Paper, we summarize theoretical motivations and experimental aspects …


A Pragmatic Trial Of A Family-Centered Approach To Childhood Obesity Treatment: Rationale And Study Design, Amanda E. Staiano, Alyssa M. Button, Alison Baker, Robbie Beyl, Anne Marie Conn, Angela Lima, Jeanne Lindros, Robert L. Newton, Richard I. Stein, R. Robinson Welch, Stephen Cook, Denise E. Wilfley Mar 2024

A Pragmatic Trial Of A Family-Centered Approach To Childhood Obesity Treatment: Rationale And Study Design, Amanda E. Staiano, Alyssa M. Button, Alison Baker, Robbie Beyl, Anne Marie Conn, Angela Lima, Jeanne Lindros, Robert L. Newton, Richard I. Stein, R. Robinson Welch, Stephen Cook, Denise E. Wilfley

Population and Public Health Science Faculty Publications

Background: Family-based behavioral treatment (FBT) is an effective intensive health behavior and lifestyle treatment for obesity reduction in children and adolescents, but families have limited access. The purpose of this randomized, pragmatic, comparative effectiveness trial was to examine changes in child relative weight in a 12-month, enhanced standard of care (eSOC) intervention combined with FBT (eSOC+FBT) vs. eSOC alone. Methods: Children aged 6 to 15 years with obesity, and their primary caregiver, were recruited from primary care clinics. Families were randomized 1:1 to eSOC, a staged approach led by the primary care provider that gradually intensified dependent on a child's …


Effects Of Teosinte Flour (Dioon Mejiae) On Selected Physicochemical Characteristics And Consumer Perceptions Of Gluten-Free Cocoa Cookies Formulated With Mung Bean (Vigna Radiata) Flour, Carlos José Rivera, Ricardo S. Aleman, Jorge Ortega, Andrea Muela, Jhunior Marcia, Joan King, Witoon Prinyawiwatkul Mar 2024

Effects Of Teosinte Flour (Dioon Mejiae) On Selected Physicochemical Characteristics And Consumer Perceptions Of Gluten-Free Cocoa Cookies Formulated With Mung Bean (Vigna Radiata) Flour, Carlos José Rivera, Ricardo S. Aleman, Jorge Ortega, Andrea Muela, Jhunior Marcia, Joan King, Witoon Prinyawiwatkul

Faculty Publications

Dioon mejiae, or teosinte, is a living fossil tree discovered in Olancho, Honduras, whose seeds have a desirable nutritional profile that can provide health benefits. As a result, the objective of this study was to evaluate the effects of teosinte flour obtained from seeds on selected physicochemical characteristics and consumer perceptions of gluten-free cocoa cookies formulated with mung bean (Vigna radiata) flour. Gluten-free cocoa cookies were prepared with different levels of teosinte flour (0%, 70%, 80%, 90%, and 100% by weight of mung bean flour) in substitution of mung bean flour. The cookies were evaluated for texture hardness, color (L*, …