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Precision Stratification Of Prognostic Risk Factors Associated With Outcomes In Gestational Diabetes Mellitus: A Systematic Review, Zhila Semnani-Azad, Romy Gaillard, Alice E. Hughes, Kristen E. Boyle, Kristen E. Boyle, Deirdre K. Tobias, Paul W. Franks, Stephen S. Rich, Robert Wagner, Tina Vilsbøll, Kimberly K. Vesco, Miriam S. Udler, Tiinamaija Tuomi, Arianne Sweeting, Emily K. Sims, Jennifer L. Sherr, Robert K. Semple, Rebecca M. Reynolds, Maria J. Redondo, Leanne M. Redman, Richard E. Pratley, Rodica Pop-Busui, Toni I. Pollin, Wei Perng, Ewan R. Pearson, Susan E. Ozanne, Katharine R. Owen, Richard Oram, Rinki Murphy, Viswanathan Mohan, Shivani Misra, James B. Meigs, Nestoras Mathioudakis, Chantal Mathieu Dec 2024

Precision Stratification Of Prognostic Risk Factors Associated With Outcomes In Gestational Diabetes Mellitus: A Systematic Review, Zhila Semnani-Azad, Romy Gaillard, Alice E. Hughes, Kristen E. Boyle, Kristen E. Boyle, Deirdre K. Tobias, Paul W. Franks, Stephen S. Rich, Robert Wagner, Tina Vilsbøll, Kimberly K. Vesco, Miriam S. Udler, Tiinamaija Tuomi, Arianne Sweeting, Emily K. Sims, Jennifer L. Sherr, Robert K. Semple, Rebecca M. Reynolds, Maria J. Redondo, Leanne M. Redman, Richard E. Pratley, Rodica Pop-Busui, Toni I. Pollin, Wei Perng, Ewan R. Pearson, Susan E. Ozanne, Katharine R. Owen, Richard Oram, Rinki Murphy, Viswanathan Mohan, Shivani Misra, James B. Meigs, Nestoras Mathioudakis, Chantal Mathieu

Clinical Research Faculty Publications

Background: The objective of this systematic review is to identify prognostic factors among women and their offspring affected by gestational diabetes mellitus (GDM), focusing on endpoints of cardiovascular disease (CVD) and type 2 diabetes (T2D) for women, and cardiometabolic profile for offspring. Methods: This review included studies published in English language from January 1st, 1990, through September 30th, 2021, that focused on the above outcomes of interest with respect to sociodemographic factors, lifestyle and behavioral characteristics, traditional clinical traits, and ‘omics biomarkers in the mothers and offspring during the perinatal/postpartum periods and across the lifecourse. Studies that did not report …

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The Impact Of Exercise On Gene Regulation In Association With Complex Trait Genetics, Nikolai G. Vetr, Nicole R. Gay, Joshua N. Adkins, Brent G. Albertson, David Amar, Mary Anne S. Amper, Jose Juan Almagro Armenteros, Euan Ashley, Julian Avila-Pacheco, Dam Bae, Ali Tugrul Balci, Marcas Bamman, Nasim Bararpour, Elisabeth R. Barton, Pierre M. Jean Beltran, Bryan C. Bergman, Daniel H. Bessesen, Sue C. Bodine, Frank W. Booth, Brian Bouverat, Thomas W. Buford, Charles F. Burant, Tiziana Caputo, Steven Carr, Toby L. Chambers, Clarisa Chavez, Maria Chikina, Roxanne Chiu, Michael Cicha, Clary B. Clish, Paul M. Coen, Dan Cooper, Elaine Cornell, Gary Cutter Dec 2024

The Impact Of Exercise On Gene Regulation In Association With Complex Trait Genetics, Nikolai G. Vetr, Nicole R. Gay, Joshua N. Adkins, Brent G. Albertson, David Amar, Mary Anne S. Amper, Jose Juan Almagro Armenteros, Euan Ashley, Julian Avila-Pacheco, Dam Bae, Ali Tugrul Balci, Marcas Bamman, Nasim Bararpour, Elisabeth R. Barton, Pierre M. Jean Beltran, Bryan C. Bergman, Daniel H. Bessesen, Sue C. Bodine, Frank W. Booth, Brian Bouverat, Thomas W. Buford, Charles F. Burant, Tiziana Caputo, Steven Carr, Toby L. Chambers, Clarisa Chavez, Maria Chikina, Roxanne Chiu, Michael Cicha, Clary B. Clish, Paul M. Coen, Dan Cooper, Elaine Cornell, Gary Cutter

Clinical Research Faculty Publications

Endurance exercise training is known to reduce risk for a range of complex diseases. However, the molecular basis of this effect has been challenging to study and largely restricted to analyses of either few or easily biopsied tissues. Extensive transcriptome data collected across 15 tissues during exercise training in rats as part of the Molecular Transducers of Physical Activity Consortium has provided a unique opportunity to clarify how exercise can affect tissue-specific gene expression and further suggest how exercise adaptation may impact complex disease-associated genes. To build this map, we integrate this multi-tissue atlas of gene expression changes with gene-disease …

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Impact Of Amyloid And Cardiometabolic Risk Factors On Prognostic Capacity Of Plasma Neurofilament Light Chain For Neurodegeneration, Keun You Kim, Eosu Kim, Jun Young Lee, Balebail Ashok Raj, Kristin Fargher, Amanda Smith, Lisa Raudin, Gloria Chaing, Norman Relkin, Karen Elizabeth Smith, Hyungsub Shim, Laura L.Boles Ponto, Susan K. Schultz, Antero Sarrael, Raymundo Hernando, Nunzio Pomara, Dick Drost, Andrew Kertesz, John Rogers, Irina Rachinsky, Stephen Pasternak, Elizabether Finger, David Bachman, Kenneth Spicer, Jacobo Mintzer, Bruce L. Miller, Howard J. Rosen, Stephen Correia, Paul Malloy, Stephen Salloway, Geoffrey Tremont, Henry Querfurth, Brian R. Ott, Franklin Watkins Dec 2024

Impact Of Amyloid And Cardiometabolic Risk Factors On Prognostic Capacity Of Plasma Neurofilament Light Chain For Neurodegeneration, Keun You Kim, Eosu Kim, Jun Young Lee, Balebail Ashok Raj, Kristin Fargher, Amanda Smith, Lisa Raudin, Gloria Chaing, Norman Relkin, Karen Elizabeth Smith, Hyungsub Shim, Laura L.Boles Ponto, Susan K. Schultz, Antero Sarrael, Raymundo Hernando, Nunzio Pomara, Dick Drost, Andrew Kertesz, John Rogers, Irina Rachinsky, Stephen Pasternak, Elizabether Finger, David Bachman, Kenneth Spicer, Jacobo Mintzer, Bruce L. Miller, Howard J. Rosen, Stephen Correia, Paul Malloy, Stephen Salloway, Geoffrey Tremont, Henry Querfurth, Brian R. Ott, Franklin Watkins

Clinical Research Faculty Publications

Background: Plasma neurofilament light chain (NfL) is a blood biomarker of neurodegeneration, including Alzheimer’s disease. However, its usefulness may be influenced by common conditions in older adults, including amyloid-β (Aβ) deposition and cardiometabolic risk factors like hypertension, diabetes mellitus (DM), impaired kidney function, and obesity. This longitudinal observational study using the Alzheimer’s Disease Neuroimaging Initiative cohort investigated how these conditions influence the prognostic capacity of plasma NfL. Methods: Non-demented participants (cognitively unimpaired or mild cognitive impairment) underwent repeated assessments including the Alzheimer’s Disease Assessment Scale-Cognitive subscale (ADAS-Cog) scores, hippocampal volumes, and white matter hyperintensity (WMH) volumes at 6- or 12-month …

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Sex Differences In Interacting Genetic And Functional Connectivity Biomarkers In Alzheimer’S Disease, Jordan N. Williamson, Shirley A. James, Sean P. Mullen, Bradley P. Sutton, Tracey Wszalek, Beni Mulyana, Peter Mukli, Andriy Yabluchanskiy, Balebail Ashok Raj, Kristin Fargher, Amanda Smith, Lisa Raudin, Gloria Chaing, Norman Relkin, Karen Elizabeth Smith, Hyungsub Shim, Laura L.Boles Ponto, Susan K. Schultz, Antero Sarrael, Raymundo Hernando, Nunzio Pomara, Dick Drost, Andrew Kertesz, John Rogers, Irina Rachinsky, Stephen Pasternak, Elizabether Finger, David Bachman, Kenneth Spicer, Jacobo Mintzer, Bruce L. Miller, Howard J. Rosen, Stephen Correia, Paul Malloy Dec 2024

Sex Differences In Interacting Genetic And Functional Connectivity Biomarkers In Alzheimer’S Disease, Jordan N. Williamson, Shirley A. James, Sean P. Mullen, Bradley P. Sutton, Tracey Wszalek, Beni Mulyana, Peter Mukli, Andriy Yabluchanskiy, Balebail Ashok Raj, Kristin Fargher, Amanda Smith, Lisa Raudin, Gloria Chaing, Norman Relkin, Karen Elizabeth Smith, Hyungsub Shim, Laura L.Boles Ponto, Susan K. Schultz, Antero Sarrael, Raymundo Hernando, Nunzio Pomara, Dick Drost, Andrew Kertesz, John Rogers, Irina Rachinsky, Stephen Pasternak, Elizabether Finger, David Bachman, Kenneth Spicer, Jacobo Mintzer, Bruce L. Miller, Howard J. Rosen, Stephen Correia, Paul Malloy

Clinical Research Faculty Publications

As of 2023, it is estimated that 6.7 million individuals in the United States live with Alzheimer’s disease (AD). Prior research indicates that AD disproportionality affects females; females have a greater incidence rate, perform worse on a variety of neuropsychological tasks, and have greater total brain atrophy. Recent research shows that hippocampal functional connectivity differs by sex and may be related to the observed sex differences in AD, and apolipoprotein E (ApoE) ε4 carriers have reduced hippocampal functional connectivity. The purpose of this study was to determine if the ApoE genotype plays a role in the observed sex differences in …

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Many-Body Enhancement Of High-Harmonic Generation In Monolayer Mos2, Victor Chang Lee, Lun Yue, Mette B. Gaarde, Yang Hao Chan, Diana Y. Qiu Dec 2024

Many-Body Enhancement Of High-Harmonic Generation In Monolayer Mos2, Victor Chang Lee, Lun Yue, Mette B. Gaarde, Yang Hao Chan, Diana Y. Qiu

Faculty Publications

Many-body effects play an important role in enhancing and modifying optical absorption and other excited-state properties of solids in the perturbative regime, but their role in high harmonic generation (HHG) and other nonlinear response beyond the perturbative regime is not well-understood. We develop here an ab initio many-body method to study nonperturbative HHG based on the real-time propagation of the non-equilibrium Green’s function with the GW self energy. We calculate the HHG of monolayer MoS2 and obtain good agreement with experiment, including the reproduction of characteristic patterns of monotonic and nonmonotonic harmonic yield in the parallel and perpendicular responses, respectively. …

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Metabarcoding The Arctic Ocean Helps Reveal Its Hidden Microbial Community Composition, Rafet Çağrı Öztürk, Yahya Terzi, Sheila Rodríguez-Machado, Ersan Başar, Ali Muzaffer Feyzioğlu, Dilek Ustaoğlu, Ertuğrul Ağırbaş, Prosanta Chakrabarty Dec 2024

Metabarcoding The Arctic Ocean Helps Reveal Its Hidden Microbial Community Composition, Rafet Çağrı Öztürk, Yahya Terzi, Sheila Rodríguez-Machado, Ersan Başar, Ali Muzaffer Feyzioğlu, Dilek Ustaoğlu, Ertuğrul Ağırbaş, Prosanta Chakrabarty

Faculty Publications

The Arctic Ocean supports a unique and dynamic microbial community, yet its composition, structure, and response to environmental shifts remain incompletely understood. In this study, 16S rRNA gene metabarcoding (targeting the V3-V4 and V4-V5 hypervariable regions) was used to assess surface water microbial diversity across 20 stations in the Barents Sea, focusing on latitudinal variations within two contrasting current systems: the West Spitsbergen Current (WSC) and the East Spitsbergen Current (ESC). Our results showed that the microbial community is dominated by three primary families—Pseudoalteromonadaceae, Moraxellaceae, and Flavobacteriaceae (14.20%). Comparative analysis of the V3-V4 and V4-V5 regions reveals that each region …

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Global Well-Posedness For Supercritical Sqg With Perturbations Of Radially Symmetric Data, Aynur Bulut, Hongjie Dong Dec 2024

Global Well-Posedness For Supercritical Sqg With Perturbations Of Radially Symmetric Data, Aynur Bulut, Hongjie Dong

Faculty Publications

We study the global well-posedness of the supercritical dissipative surface quasi-geostrophic (SQG) equation, a key model in geophysical fluid dynamics. While local well-posedness is known, achieving global well-posedness for large initial data remains open. Motivated by enhanced decay in radial solutions, we aim to establish global well-posedness for small perturbations of potentially large radial data. Our main result shows that for small perturbations of radial data, the SQG equation admits a unique global solution.

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Creating A Bio-Based Circular Economy From Louisiana Sugarcane Byproducts, G. Aita, D. Bhatnagar, G. O. Bruni, M. Deliberto, G. Eggleston, A. Finger, K. Gravois, M. Isied, W. Judice, K. T. Klasson, I. M. Lima, J. L. Purswell, M. Souliman, E. Terrell, B. S. Tubaña, H. L. Waguespack, J. J. Wang, P. M. White Dec 2024

Creating A Bio-Based Circular Economy From Louisiana Sugarcane Byproducts, G. Aita, D. Bhatnagar, G. O. Bruni, M. Deliberto, G. Eggleston, A. Finger, K. Gravois, M. Isied, W. Judice, K. T. Klasson, I. M. Lima, J. L. Purswell, M. Souliman, E. Terrell, B. S. Tubaña, H. L. Waguespack, J. J. Wang, P. M. White

Faculty Publications

Abstract: Sugarcane (Saccharum officinarum) is Louisiana's number one row crop. Growing and processing sugarcane produces significant amounts of byproducts, including bagasse, crop residue, molasses, filter-press mud, and boiler fly ash. These products represent an important opportunity to generate value-added and specialty products and enhance sugarcane's sustainability by facilitating a circular economy, where agricultural by-products are reused instead of disposing them (linear economy), in order to reduce resource use and energy demand. Examples of value-added products range from biochar, construction materials, animal feed, biofuels, nanoparticles, and fertilizer. Paramount to the success of the bio-based circular economy is creating useful products that …

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Rotaxanes With A Photoresponsive Macrocycle Modulate The Lipid Bilayers Of Large And Giant Unilamellar Vesicles, Udyogi N.K. Conthagamage, Rajitha Rajeshwar T, Stijn Van Der Ham, Nasim Akhtar, Macallister L. Davis, Senuri G. Jayawardana, Lilia Lopez, Hanumantha Rao Vutukuri, Jeremy C. Smith, Micholas Dean Smith, Víctor García-López Dec 2024

Rotaxanes With A Photoresponsive Macrocycle Modulate The Lipid Bilayers Of Large And Giant Unilamellar Vesicles, Udyogi N.K. Conthagamage, Rajitha Rajeshwar T, Stijn Van Der Ham, Nasim Akhtar, Macallister L. Davis, Senuri G. Jayawardana, Lilia Lopez, Hanumantha Rao Vutukuri, Jeremy C. Smith, Micholas Dean Smith, Víctor García-López

Faculty Publications

Rotaxanes equipped with actuators hold great potential for developing highly functional molecular machines. Such systems could significantly enhance our ability to study and manipulate biological and artificial membranes. Here, we introduce a rotaxane with a ring featuring two azobenzene photoswitches, which retain their photoreversibility and can be stochastically shuttled along the axle in solution. Studies in model bilayers, supported by molecular dynamics simulations, show how azobenzene photoswitching alters the interaction of rotaxanes with surrounding lipids, leading to changes in lipid packing. Such changes in the lipid bilayer were leveraged to induce the light-triggered release of sulforhodamine B from large unilamellar …

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Gleaning Rural Journalism: Rural Journalists' Agricultural And Environmental Reporting Utilizing Community Storytelling Networks☆, Jessica Walsh, Mildred F. Perreault, Greg Perreault, Ruth Moon Dec 2024

Gleaning Rural Journalism: Rural Journalists' Agricultural And Environmental Reporting Utilizing Community Storytelling Networks☆, Jessica Walsh, Mildred F. Perreault, Greg Perreault, Ruth Moon

Faculty Publications

Environmental concerns are growing in parts of the rural United States as drinking water wells become contaminated with agrichemicals, and climate change impacts such as drought and extreme rain events disrupt farming practices. Analyzing in-depth interviews with 29 U.S. rural journalists, we explore the role rural journalists play when reporting on the environment as it relates to agricultural issues. Findings show that reporting about the environment—such as weather, climate change, water shortages, and droughts—appear in rural journalists' stories given those topics' relevance to their rural communities and the social systems forces exerting influence on journalists, yet rural journalists often do …

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Weathering Influences The Ice Nucleation Activity Of Microplastics, Philip Brahana, Mingyi Zhang, Elias Nakouzi, Bhuvnesh Bharti Dec 2024

Weathering Influences The Ice Nucleation Activity Of Microplastics, Philip Brahana, Mingyi Zhang, Elias Nakouzi, Bhuvnesh Bharti

Faculty Publications

Microplastics are being increasingly detected in the atmosphere at altitudes relevant to mixed-phase cloud formation. However, the extent to which microplastics, along with their dynamic surface properties resulting from environmental weathering, could influence atmospheric microphysical processes remains largely unexplored. Here, through a series of ice nucleation experiments and droplet freezing assays, we highlight the capability of model polyethylene microplastics to induce heterogeneous ice nucleation via immersion freezing under atmospherically relevant conditions. We find that sunlight-induced weathering of the microplastic surface influences the structure of surface-bound water molecules and dictates the ice nucleation activity of the microplastics. Using polyethylene, polypropylene, polystyrene, …

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Investigating The Role That Calcium And The Membrane Play In 8r-Lipoxygenase Catalysis, Kaelie Bernard Dec 2024

Investigating The Role That Calcium And The Membrane Play In 8r-Lipoxygenase Catalysis, Kaelie Bernard

Honors Capstones

No abstract provided.

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Beyond Surrealism: The Developing Keyboard Style Of André Souris, Melanie T. Mallard Nov 2024

Beyond Surrealism: The Developing Keyboard Style Of André Souris, Melanie T. Mallard

LSU Doctoral Dissertations

André Souris (1899-1970) is perhaps best known as a musical contributor to the Belgian surrealist group founded by Paul Nougé, but he assumed many roles throughout his life, including composer, writer, director, and promoter of modern music. His various interests influenced the style of his compositions, which remain largely unpublished and have received little scholarly attention beyond researchers of surrealism. Through this survey of many of Souris’ works for keyboard, I attempt to lay the groundwork for further discussion about Souris’ musical contributions not only through the lens of surrealism but also throughout his compositional career. This descriptive analysis of …

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Understanding Mechanisms For Coastal Marsh Sustainability In A Changing Climate, Ashley R. Booth Nov 2024

Understanding Mechanisms For Coastal Marsh Sustainability In A Changing Climate, Ashley R. Booth

LSU Doctoral Dissertations

In the Chenier Plain of Louisiana and Texas, coastal marshes are subject to high rates of relative sea level rise (RSLR), restricted sedimentation, and declining elevation attributed to subsidence and decades of intensive management. These marshes were created via mineral sedimentation but now largely accrete via organic matter accumulation. This organic matter accumulation (OMA) – or the balance between plant productivity and decomposition – is essential for maintaining elevation and thus long-term sustainability. However, management for elevation is complicated by a poor understanding of how abiotic factors like flooding and salinity impact processes driving OMA and elevation. To better understand …

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Safeguarding Ecological Knowledge From The Effects Of Climate Change: An Archival Approach, Daena Jean Carrillo Nov 2024

Safeguarding Ecological Knowledge From The Effects Of Climate Change: An Archival Approach, Daena Jean Carrillo

LSU Doctoral Dissertations

Creating resources that facilitate the preservation of community-based archives and ecological knowledge in the Louisiana coastal region is integral to its survival amongst the effects of climate change. Research and records created and stored within the Louisiana coastal region have a higher predisposition to the drastic and pervasive effects of climate change and natural disasters. Modern archivists can insert themselves into the work of climate change action through their advocacy of safeguarding collections that have been created by communities and individuals through raw scientific and observational data and unpublished research. Just as archivists continue to frame their professional work around …

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Vision-Language Integration For Enhanced Locomotion Mode Prediction, Ehsan Ahmadi Nov 2024

Vision-Language Integration For Enhanced Locomotion Mode Prediction, Ehsan Ahmadi

LSU Master's Theses

Wearable exoskeletons offer significant potential in enhancing human mobility in industrial environments. However, their adaptability to dynamic, task-intensive settings presents challenges, especially in accurately predicting locomotion modes such as ladder climbing, stair navigation, low-space movement, and obstacle navigation. This research proposes a multimodal framework that integrates visual data and speech commands to improve locomotion mode prediction in unpredictable environments. Multimodal data was collected using smart glasses, capturing both the user’s perspective (field-of-view, FOV) and voice during locomotion tasks. State-of-the-art models—CLIP, ImageBind, and GPT-4o—process these visual and linguistic inputs to predict locomotion activities. The models were evaluated in zero-shot and fine-tuned …

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Les Structures Identitaires Et Mémorielles Dans Nom De Constance Debré, Aditi Khasa Nov 2024

Les Structures Identitaires Et Mémorielles Dans Nom De Constance Debré, Aditi Khasa

Tête à Tête: Journal of Francophone Studies

Cet article propose une lecture parallèle du roman Nom de Constance Debré, à travers le prisme théorique de la mémoire collective et de ses multiples mécanismes. En mobilisant les concepts développés par Maurice Halbwachs et Jan Assmann, l’analyse met en lumière les différentes sphères de mémoire, leur influence dominante, ainsi que leur rôle dans la construction de l'identité de l'auteure. Cette étude interroge la fonction de l'écriture pour Debré et son importance dans son processus d'émancipation. L’essai explore également la manière dont les structures de mémoire et d'identité sont articulées et évoluent au sein du récit.

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Les Expressions Erronées Dans La Traduction De Certains Francisants À Tai Solarin University Of Education, Malik Garba, Tajudeen Salaudeen Nov 2024

Les Expressions Erronées Dans La Traduction De Certains Francisants À Tai Solarin University Of Education, Malik Garba, Tajudeen Salaudeen

Tête à Tête: Journal of Francophone Studies

La traduction est tout simplement la transposition du message d’une langue de départ vers une langue d’arrivée pour exprimer la même réalité. Cette recherche vise à nous élucider sur ce que c’est la traduction et la performance linguistique des apprenants Anglophones : le cas des apprenants du français en troisième année à Tai Solarin University of Education (TASUED) dans l’état d’Ogun au Nigéria. Nous avons décidé de travailler sur une dizaine d’étudiants faisant le français pédagogique. Il s’avère nécessaire de mentionner que certaines phrases anglaises étaient tirées de l’ouvrage de Femi Ojo-Ade (2017) d’où les apprenants sont persuadés de fournir …

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L’Insécurité Linguistique Et La Confiance De S’Identifier Comme Bilingue: Le Cas Des Élèves D’Immersion Française En Saskatchewan Au Canada, Olushola J. Adedeji, Michael Akinpelu Nov 2024

L’Insécurité Linguistique Et La Confiance De S’Identifier Comme Bilingue: Le Cas Des Élèves D’Immersion Française En Saskatchewan Au Canada, Olushola J. Adedeji, Michael Akinpelu

Tête à Tête: Journal of Francophone Studies

Les élèves d’immersion française partout au Canada ont le droit de s’identifier avec grande fierté et légitimité comme des bilingues (en anglais et français) canadiens. Pourtant, le niveau de fierté de s’identifier ainsi dépend largement de son niveau de confiance dans les deux langues. La présente étude examine les discours des élèves et des enseignants en immersion française pour dégager des idéologies linguistiques qui influent négativement sur la confiance des jeunes d’immersion française de se connaitre comme des bilingues. Les extraits de discours utilisés pour cette étude proviennent des données qualitatives et quantitatives collectées pour une thèse de doctorat (Auteur …

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Pooled Analysis Of Physical Activity, Sedentary Behavior, And Sleep Among Children From 33 Countries, Kar Hau Chong, Thomas Suesse, Penny L. Cross, Sarah T. Ryan, Eivind Aadland, Oluwayomi Aoko, Ankhmaa Byambaa, Valerie Carson, Jean Philippe Chaput, Hayley Christian, Dylan P. Cliff, Marieke De Craemer, Clarice Maria De Lucena Martins, Christine Delisle Nyström, Catherine E. Draper, Asmaa El Hamdouchi, Alex Antonio Florindo, Hongyan Guan, Amy S. Ha, Najmeh Hamzavi Zarghani, Kylie D. Hesketh, Mohammad Sorowar Hossain, Jajat Jajat, Thanh Kim, Denise Koh, Anna V. Kontsevaya, Nicholas Kuzik, Marja H. Leppänen, Marie Löf, Himangi Lubree, Kim Meredith-Jones, Tawonga W. Mwase-Vuma, Johan Y.Y. Ng, Rachel Novotny Nov 2024

Pooled Analysis Of Physical Activity, Sedentary Behavior, And Sleep Among Children From 33 Countries, Kar Hau Chong, Thomas Suesse, Penny L. Cross, Sarah T. Ryan, Eivind Aadland, Oluwayomi Aoko, Ankhmaa Byambaa, Valerie Carson, Jean Philippe Chaput, Hayley Christian, Dylan P. Cliff, Marieke De Craemer, Clarice Maria De Lucena Martins, Christine Delisle Nyström, Catherine E. Draper, Asmaa El Hamdouchi, Alex Antonio Florindo, Hongyan Guan, Amy S. Ha, Najmeh Hamzavi Zarghani, Kylie D. Hesketh, Mohammad Sorowar Hossain, Jajat Jajat, Thanh Kim, Denise Koh, Anna V. Kontsevaya, Nicholas Kuzik, Marja H. Leppänen, Marie Löf, Himangi Lubree, Kim Meredith-Jones, Tawonga W. Mwase-Vuma, Johan Y.Y. Ng, Rachel Novotny

Population and Public Health Science Faculty Publications

Importance: The prevalence estimates of physical activity, sedentary behavior, and sleep (collectively known as movement behaviors) in 3-and 4-year-old children worldwide remains uncertain. Objective: To report the proportion of 3-and 4-year-old children who met the World Health Organization guidelines for physical activity, sedentary behavior, and sleep across 33 countries. Design, Setting, and Participants: Pooled analysis of data from 14 cross-sectional studies (July 2008 to September 2022) identified through systematic reviews and personal networks. Thirty-Three countries of varying income levels across 6 geographical regions. Each study site needed to have at least 40 children aged 3.0 to 4.9 years with valid …

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Short Communication: Numerically Simulated Time To Steady State Is Not A Reliable Measure Of Landscape Response Time, Nicole M. Gasparini, Adam M. Forte, Katherine R. Barnhart Nov 2024

Short Communication: Numerically Simulated Time To Steady State Is Not A Reliable Measure Of Landscape Response Time, Nicole M. Gasparini, Adam M. Forte, Katherine R. Barnhart

Faculty Publications

Quantifying the timescales over which landscapes evolve is critical for understanding past and future environmental change. Computational landscape evolution models are one tool among many that have been used in this pursuit. We compare numerically modeled times to reach steady state for a landscape adjusting to an increase in rock uplift rate. We use three different numerical modeling libraries and explore the impact of time step, grid type, numerical method for solving the erosion equation, and metric for quantifying the time to steady state. We find that modeled time to steady state is impacted by all of these variables. Time …

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Euphemism In Ai Discourse As Colonial Harm & Effect: Learnings From Subaltern Puerto Rico, Jacqueline Oquendo Nov 2024

Euphemism In Ai Discourse As Colonial Harm & Effect: Learnings From Subaltern Puerto Rico, Jacqueline Oquendo

LSU Doctoral Dissertations

Through three integrated studies, this dissertation explores complex human-AI interactions by comparing the perceptions of two groups of U.S. citizens: subaltern Puerto Ricans and stateside Americans’ interactions with ChatGPT. This corpus-assisted Critical Discourse Analysis or CLCDA, triangulated with 1:1 semi-structured interviews, validates scholars’ concerns about the biases inherent in generative AI. Contributing to those concerns, this dissertation reveals that ChatGPT deploys discourse strategies that, when executed, facilitate digital colonialism. Euphemistic language is prominent among its discourse strategies, replacing controversial words, phrases, and topics with more palatable ones. When prompted on events of historical significance, I find that ChatGPT’s discourse obscures …

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Mapping Gender And Territory: The Continent Allegories On European World Maps From The Late Middle Ages To The Renaissance Until The Early Enlightenment, Katharina Eva Oehmichen Nov 2024

Mapping Gender And Territory: The Continent Allegories On European World Maps From The Late Middle Ages To The Renaissance Until The Early Enlightenment, Katharina Eva Oehmichen

Comparative Woman

The four-part set of female continent allegories, which originated in the early Renaissance, was born out of a European need for a new vehicle of thought that served the functions of representing imperial expansion and the superiority of Western science and civilization, while gratifying the curiosity of the readers about newly discovered lands at the same time. The shift from the Christian symbolic tradition of the representation of the continents on world maps mirrored the shift in Western perception and knowledge of the world and Europe’s position in it. Apart from geo-political and imperial agendas that might have favored a …

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Online Eye Tracking For Aphasia: A Feasibility Study Comparing Web And Lab Tracking And Implications For Clinical Use, Willem S. Van Boxtel, Michael Linge, Rylee Manning, Lily N. Haven, Jiyeon Lee Nov 2024

Online Eye Tracking For Aphasia: A Feasibility Study Comparing Web And Lab Tracking And Implications For Clinical Use, Willem S. Van Boxtel, Michael Linge, Rylee Manning, Lily N. Haven, Jiyeon Lee

Faculty Publications

Background & Aims: Studies using eye-tracking methodology have made important contributions to the study of language disorders such as aphasia. Nevertheless, in clinical groups especially, eye-tracking studies often include small sample sizes, limiting the generalizability of reported findings. Online, webcam-based tracking offers a potential solution to this issue, but web-based tracking has not been compared with in-lab tracking in past studies and has never been attempted in groups with language impairments. Materials & Methods: Patients with post-stroke aphasia (n = 16) and age-matched controls (n = 16) completed identical sentence-picture matching tasks in the lab (using an EyeLink system) and …

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Probabilistic Well-Posedness For The Nonlinear Wave Equation On B2 × T, Aynur Bulut Nov 2024

Probabilistic Well-Posedness For The Nonlinear Wave Equation On B2 × T, Aynur Bulut

Faculty Publications

We establish probabilistic well-posedness results for the subcubic nonlinear wave equation, posed on the domain B2 × T, with randomly chosen initial data having radial symmetry in the B2 variable, and with vanishing Dirichlet boundary conditions on ∂B2 × T.

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Comprehensive Structural Study Of Lanthanide(Iii) Chloride Hydrates: [Recl3·Xh2o (Re = La–Nd, Sm–Lu; X = 6, 7)], Thimira Kandabadage, Beau Legnon, Sviatoslav Baranets Nov 2024

Comprehensive Structural Study Of Lanthanide(Iii) Chloride Hydrates: [Recl3·Xh2o (Re = La–Nd, Sm–Lu; X = 6, 7)], Thimira Kandabadage, Beau Legnon, Sviatoslav Baranets

Faculty Publications

A comprehensive crystallographic study is presented of the complete series of rare-earth(III) chloride hydrates. Early lanthanides form dimeric [(H2O)7RE(μCl)2RE(H2O)7]4+ binuclear complexes in which each RE atom (RE = La3+, Ce3+) is coordinated by seven H2O molecules and two bridging inner-sphere chloride ions. Di-μ-chlorido-bis[heptaaqualanthanide(III)] tetrachloride, [(H2O)7RE(μ-Cl)2RE(H2O)7]Cl4, crystallizes in the triclinic space group P1. Heavier lanthanides exhibit monomeric [RECl2(H2O)6]+ units where each RE atom (RE = Pr3+, Nd3+, Sm3+–Lu3+) is coordinated by six H2O molecules and two inner-sphere chloride ions. Hexaaquadichloridolanthanide(III) chlorides, [RECl2(H2O)6]Cl, adopt the monoclinic space group …

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The Sec Spanish Consortium: Foundations For Linguistic Gratuity And Language Documentation Among Latinx Populations In New Destination Communities Of The U.S. South, Stephen Fafulas, Chad Howe, Rafael Orozco, Alicia Cipria, Erin O’Rourke, Nina Moreno, Matthew J. Van Hoose Nov 2024

The Sec Spanish Consortium: Foundations For Linguistic Gratuity And Language Documentation Among Latinx Populations In New Destination Communities Of The U.S. South, Stephen Fafulas, Chad Howe, Rafael Orozco, Alicia Cipria, Erin O’Rourke, Nina Moreno, Matthew J. Van Hoose

Faculty Publications

Latinx populations in the USA have grown steadily in recent decades, with significant increases taking place in “new destination communities” of the U.S. South. The focus of our paper is to highlight opportunities for working with these populations, including traditional sociolinguistic ethnographies and community-engaged research. We highlight an initiative named “The SEC Spanish Consortium” which is an interinstitutional collaboration centered on scholarship and service involving Latinx populations in new destination communities of the U.S. South. We show that ongoing and future scholarly work in the U.S. South can act as a mechanism for documenting these emerging Latinx communities while simultaneously …

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Editorial Introduction: Policy Actors, Dynamics, And Developments—New Insights From Process Theories And Methodological Applications, Geoboo Song, Gwen Arnold, Melissa K. Merry, Davor Mondom, Ben Galloway, Briana Huett, Camille Gilmore, Saba Siddiki, Holly L. Peterson, Creed Tumlison, Heasun Choi, Meerim Seiitova Nov 2024

Editorial Introduction: Policy Actors, Dynamics, And Developments—New Insights From Process Theories And Methodological Applications, Geoboo Song, Gwen Arnold, Melissa K. Merry, Davor Mondom, Ben Galloway, Briana Huett, Camille Gilmore, Saba Siddiki, Holly L. Peterson, Creed Tumlison, Heasun Choi, Meerim Seiitova

Faculty Publications

No abstract provided.

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Deephive: A Reinforcement Learning Approach For Automated Discovery Of Swarm-Based Optimization Policies, Eloghosa Ikponmwoba, Opeoluwa Owoyele Nov 2024

Deephive: A Reinforcement Learning Approach For Automated Discovery Of Swarm-Based Optimization Policies, Eloghosa Ikponmwoba, Opeoluwa Owoyele

Faculty Publications

We present an approach for designing swarm-based optimizers for the global optimization of expensive black-box functions. In the proposed approach, the problem of finding efficient optimizers is framed as a reinforcement learning problem, where the goal is to find optimization policies that require a few function evaluations to converge to the global optimum. The state of each particle within the swarm is defined as its current position and function value within a design space, and the particles learn to take favorable actions that maximize the reward, which is based on the final value of the objective function. The proposed approach …

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Research Gaps And Priorities For Quantitative Microbial Risk Assessment (Qmra), Kerry A. Hamilton, Joanna Ciol Harrison, Jade Mitchell, Mark Weir, Marc Verhougstraete, Charles N. Haas, A. Pouyan Nejadhashemi, Julie Libarkin, Tiong Gim Aw, Kyle Bibby, Aaron Bivins, Joe Brown, Kara Dean, Gwyneth Dunbar, Joseph N.S. Eisenberg, Monica Emelko, Daniel Gerrity, Patrick L. Gurian, Emma Hartnett, Michael Jahne, Rachael M. Jones, Timothy R. Julian, Hongwan Li, Yanbin Li, Jacqueline Mac Donald Gibson, Gertjan Medema, J. Scott Meschke, Alexis Mraz, Heather Murphy, David Oryang, Emmanuel De Graft Johnson Owusu-Ansah, Emily Pasek, Abani K. Pradhan Nov 2024

Research Gaps And Priorities For Quantitative Microbial Risk Assessment (Qmra), Kerry A. Hamilton, Joanna Ciol Harrison, Jade Mitchell, Mark Weir, Marc Verhougstraete, Charles N. Haas, A. Pouyan Nejadhashemi, Julie Libarkin, Tiong Gim Aw, Kyle Bibby, Aaron Bivins, Joe Brown, Kara Dean, Gwyneth Dunbar, Joseph N.S. Eisenberg, Monica Emelko, Daniel Gerrity, Patrick L. Gurian, Emma Hartnett, Michael Jahne, Rachael M. Jones, Timothy R. Julian, Hongwan Li, Yanbin Li, Jacqueline Mac Donald Gibson, Gertjan Medema, J. Scott Meschke, Alexis Mraz, Heather Murphy, David Oryang, Emmanuel De Graft Johnson Owusu-Ansah, Emily Pasek, Abani K. Pradhan

Faculty Publications

The coronavirus disease 2019 pandemic highlighted the need for more rapid and routine application of modeling approaches such as quantitative microbial risk assessment (QMRA) for protecting public health. QMRA is a transdisciplinary science dedicated to understanding, predicting, and mitigating infectious disease risks. To better equip QMRA researchers to inform policy and public health management, an Advances in Research for QMRA workshop was held to synthesize a path forward for QMRA research. We summarize insights from 41 QMRA researchers and experts to clarify the role of QMRA in risk analysis by (1) identifying key research needs, (2) highlighting emerging applications of …

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