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A Subspecies-Level Database Of Amazonian Bird Distributions, With Inferences On Suture Zones And Conservation, Marco Antonio Rego Dec 2022

A Subspecies-Level Database Of Amazonian Bird Distributions, With Inferences On Suture Zones And Conservation, Marco Antonio Rego

LSU Doctoral Dissertations

Amazonia has the largest and most biodiverse tropical forest on the planet. However, the distributions of its species are still poorly understood, even for well-studied vertebrates such as birds. Available distribution maps for Amazonian birds often lack accuracy in delimiting the area where species occur. Existing distributional information for Amazonian birds is often limited to species-level level taxonomy, even though many Amazonian bird subspecies represent biological species. Here, I investigate the geographic distributions of 4,148 bird taxa (species and subspecies) using museum scientific specimens as the primary source of data. To build the data base I use more than 600,000 …

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Vigorous Physical Activity, Incident Heart Disease, And Cancer: How Little Is Enough?, Matthew N. Ahmadi, Philip J. Clare, Peter T. Katzmarzyk, Borja Del Pozo Cruz, I. Min Lee, Emmanuel Stamatakis Dec 2022

Vigorous Physical Activity, Incident Heart Disease, And Cancer: How Little Is Enough?, Matthew N. Ahmadi, Philip J. Clare, Peter T. Katzmarzyk, Borja Del Pozo Cruz, I. Min Lee, Emmanuel Stamatakis

Population and Public Health Science Faculty Publications

Aims: Vigorous physical activity (VPA) is a time-efficient way to achieve recommended physical activity levels. There is a very limited understanding of the minimal and optimal amounts of vigorous physical activity in relation to mortality and disease incidence. Methods and results: A prospective study in 71 893 adults [median age (IQR): 62.5 years (55.3, 67.7); 55.9% female] from the UK Biobank cohort with wrist-worn accelerometry. VPA volume (min/week) and frequency of short VPA bouts (≤2 min) were measured. The dose-response associations of VPA volume and frequency with mortality [all-cause, cardiovascular disease (CVD) and cancer], and CVD and cancer incidence were …

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Diet And Disturbance: Seaside Sparrow Resource Use Driven By Oiling And Hurricane Isaac, Allison M. Snider, Andrea Bonisoli-Alquati, Anna A. Pérez-Umphrey, Stefan Woltmann, Philip C. Stouffer, Sabrina S. Taylor Dec 2022

Diet And Disturbance: Seaside Sparrow Resource Use Driven By Oiling And Hurricane Isaac, Allison M. Snider, Andrea Bonisoli-Alquati, Anna A. Pérez-Umphrey, Stefan Woltmann, Philip C. Stouffer, Sabrina S. Taylor

Faculty Publications

The 2010 Deepwater Horizon (DWH) disaster led to extensive oil deposition in Louisiana’s coastal wetlands, followed two years later by Hurricane Isaac. These disturbances led to changes in saltmarsh invertebrate communities, potentially affecting higher-level predators and the saltmarsh food web. Seaside Sparrows (Ammospiza maritima) are ubiquitous, year-round residents of the coastal saltmarsh affected by the DWH spill, where they consume diverse invertebrates and may be considered an indicator species for the ecosystem’s integrity. We used DNA metabarcoding to evaluate prey consumed by Seaside Sparrows to understand how sparrows responded to residual contamination from the DWH oil spill and ecosystem disturbance …

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On The Diagonalizability And Factorizability Of Quadratic Boson Fields, Luigi Accardi, Andreas Boukas, Yungang Lu, Alexander Teretenkov Dec 2022

On The Diagonalizability And Factorizability Of Quadratic Boson Fields, Luigi Accardi, Andreas Boukas, Yungang Lu, Alexander Teretenkov

Journal of Stochastic Analysis

No abstract provided.

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Switching Between Topological Edge States In Plasmonic Systems Using Phase-Change Materials, Yin Huang, Yuecheng Shen, Georgios Veronis Dec 2022

Switching Between Topological Edge States In Plasmonic Systems Using Phase-Change Materials, Yin Huang, Yuecheng Shen, Georgios Veronis

Faculty Publications

We introduce non-Hermitian plasmonic waveguide-cavity structures based on the Aubry-Andre-Harper model to realize switching between right and left topological edge states (TESs) using the phase-change material Ge2Sb2Te5 (GST). We show that switching between the crystalline and amorphous phases of GST leads to a shift of the dispersion relation of the optimized structure so that a right TES for the crystalline phase, and a left TES for the amorphous phase occur at the same frequency. Thus, we realize switching between right and left TESs at that frequency by switching between the crystalline and amorphous phases of GST. Our results could be …

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Photo-Crosslinkable And Ultrastable Poly(1,4-Butadiene) Based Organogel With Record-High Reversible Elongation Upon Cooling And Contraction Upon Heating, Xiaming Feng, Guoqiang Li Dec 2022

Photo-Crosslinkable And Ultrastable Poly(1,4-Butadiene) Based Organogel With Record-High Reversible Elongation Upon Cooling And Contraction Upon Heating, Xiaming Feng, Guoqiang Li

Faculty Publications

Two-way shape memory polymers with reversible elongation upon cooling (EUC) and contraction upon heating (CUH) have emerged as promising smart materials for use in soft actuators. However, it remains challenging to develop organogels with as high as possible actuation strain. Here, novel photo-crosslinkable poly(1,4-butadiene) (PBD) based organogels with exceptional stability and high reversible EUC and CUH have been developed for the first time. The conventional photo-initiator 2-hydroxy-2-methylpropiophenone and plasticizer bis(2-ethylhexyl) phthalate were utilized to achieve photo-crosslinking ability and to serve as the organic free phase, respectively. Owing to the stability of the plasticizer, the PBD based organogels are pretty stable …

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Programming The Properties Of Branched Polymers Through Precision Architectures, Michael R. Dearman Dec 2022

Programming The Properties Of Branched Polymers Through Precision Architectures, Michael R. Dearman

LSU Master's Theses

The glass transition of branched polymers is determined by multiple structural parameters that dictate their inter- and intramolecular interactions, and ultimately, their molecular packing in the amorphous phase. Here we examined the impact of side chain length, backbone length, molecular weight composition, and topology on the glass transition behavior of bottlebrush polymers. Through examining precision bottlebrush polymer libraries (PBP, ĐSC = 1.0), we find the infinite molecular weight Tg is reached at a specific brush length after which the effect of the side-chain length dominates. Being a factor more dominant than the backbone, side-chain length affects the Tg of bottlebrush …

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A Late-Holocene Palynological Record Of Coastal Ecological Change And Climate Variability From Apalachicola, Florida, U.S.A, Qiang Yao, Erika Rodrigues, Kam-Biu Liu, Caitlin Snyder, Nicholas Culligan Dec 2022

A Late-Holocene Palynological Record Of Coastal Ecological Change And Climate Variability From Apalachicola, Florida, U.S.A, Qiang Yao, Erika Rodrigues, Kam-Biu Liu, Caitlin Snyder, Nicholas Culligan

Faculty Publications

No abstract provided.

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Ocean Acidification In The Gulf Of Mexico: Drivers, Impacts, And Unknowns, Emily Osborne, Xinping Hu, Emily R. Hall, Kimberly Yates, Jennifer Vreeland-Dawson, Katie Shamberger, Leticia Barbero, J. Martin Hernandez-Ayon, Fabian A. Gomez, Tacey Hicks, Yuan Yuan Xu, Melissa R. Mccutcheon, Michael Acquafredda, Cecilia Chapa-Balcorta, Orion Norzagaray, Denis Pierrot, Alain Munoz-Caravaca, Kerri L. Dobson, Nancy Williams, Nancy Rabalais, Padmanava Dash Dec 2022

Ocean Acidification In The Gulf Of Mexico: Drivers, Impacts, And Unknowns, Emily Osborne, Xinping Hu, Emily R. Hall, Kimberly Yates, Jennifer Vreeland-Dawson, Katie Shamberger, Leticia Barbero, J. Martin Hernandez-Ayon, Fabian A. Gomez, Tacey Hicks, Yuan Yuan Xu, Melissa R. Mccutcheon, Michael Acquafredda, Cecilia Chapa-Balcorta, Orion Norzagaray, Denis Pierrot, Alain Munoz-Caravaca, Kerri L. Dobson, Nancy Williams, Nancy Rabalais, Padmanava Dash

Faculty Publications

Ocean acidification (OA) has resulted in global-scale changes in ocean chemistry, which can disturb marine organisms and ecosystems. Despite its extensively populated coastline, many marine-dependent communities, and valuable economies, the Gulf of Mexico (GOM) remains a relatively understudied region with respect to acidification. In general, the warm waters of the GOM are better buffered from acidification compared to higher latitude seas, yet long-term acidification has been documented in several GOM regions. OA within the GOM is recognized as spatially variable, particularly within the coastal zone where numerous physical and biogeochemical processes contribute to carbonate chemistry dynamics. The historical progression of …

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Simulation Of Low Energy Waves During Fair-Weather Summer Conditions In The Northern Gulf Of Mexico: Effect Of Whitecapping Dissipation And The Forcing Accuracy, Nazanin Chaichitehrani, Mohammad Nabi Allahdadi, Chunyan Li Dec 2022

Simulation Of Low Energy Waves During Fair-Weather Summer Conditions In The Northern Gulf Of Mexico: Effect Of Whitecapping Dissipation And The Forcing Accuracy, Nazanin Chaichitehrani, Mohammad Nabi Allahdadi, Chunyan Li

Faculty Publications

Simulating WAves Nearshore (SWAN) on a structured grid over the Louisiana shelf in the northern Gulf of Mexico is used to evaluate the performance of three different classes of formulations for quantifying wind input and whitecapping dissipation. The formulations include Komen based on the mean spectral parameters, Westhuysen based on the saturation concept of the wave groups, and the most recent observation-based physics package ST6. The evaluation was implemented for two summer months (July and August 2015) to assess these formulations for a low wave energy period. The modeling area consists of the Louisiana inner shelf with the offshore open …

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Learning By Doing: Student & Faculty Reflections On A Collaborative Model For Conducting And Publishing Mixed Methods Research In A Graduate Course, Gina R. Costello, Kimberly R. Davis, Oliver S. Crocco Dec 2022

Learning By Doing: Student & Faculty Reflections On A Collaborative Model For Conducting And Publishing Mixed Methods Research In A Graduate Course, Gina R. Costello, Kimberly R. Davis, Oliver S. Crocco

Faculty Publications

Due to time constraints and faculty resources, one-semester research methods courses, especially mixed methods, often do not result in meaningful student-produced work that contributes to scholarly literature. As publishing increasingly becomes expected for graduate students, instructors may seek ways to incorporate publishing opportunities into course curriculum. This case study presents one instructor’s collaborative teaching and publishing model along with graduate student feedback and recommendations for reproducibility of the course model. The model described in the course-based research model vignette was designed to give students practical experience working with raw data, presenting preliminary findings, navigating the IRB process, drafting a manuscript, …

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A Predictive Model Using The Mesoscopic Architecture Of The Living Brain To Detect Alzheimer’S Disease, Marianna Inglese, Neva Patel, Kristofer Linton-Reid, Flavia Loreto, Zarni Win, Richard J. Perry, Christopher Carswell, Matthew Grech-Sollars, William R. Crum, Haonan Lu, Paresh A. Malhotra, Lisa C. Silbert, Betty Lind, Rachel Crissey, Jeffrey A. Kaye, Raina Carter, Sara Dolen, Joseph Quinn, Lon S. Schneider, Sonia Pawluczyk, Mauricio Becerra, Liberty Teodoro, Karen Dagerman, Bryan M. Spann, James Brewer, Helen Vanderswag, Adam Fleisher, Jaimie Ziolkowski, Judith L. Heidebrink, Zbizek-Nulph, Joanne L. Lord, Lisa Zbizek-Nulph, Ronald Petersen, Sara S. Mason Dec 2022

A Predictive Model Using The Mesoscopic Architecture Of The Living Brain To Detect Alzheimer’S Disease, Marianna Inglese, Neva Patel, Kristofer Linton-Reid, Flavia Loreto, Zarni Win, Richard J. Perry, Christopher Carswell, Matthew Grech-Sollars, William R. Crum, Haonan Lu, Paresh A. Malhotra, Lisa C. Silbert, Betty Lind, Rachel Crissey, Jeffrey A. Kaye, Raina Carter, Sara Dolen, Joseph Quinn, Lon S. Schneider, Sonia Pawluczyk, Mauricio Becerra, Liberty Teodoro, Karen Dagerman, Bryan M. Spann, James Brewer, Helen Vanderswag, Adam Fleisher, Jaimie Ziolkowski, Judith L. Heidebrink, Zbizek-Nulph, Joanne L. Lord, Lisa Zbizek-Nulph, Ronald Petersen, Sara S. Mason

Clinical Research Faculty Publications

Background: Alzheimer’s disease, the most common cause of dementia, causes a progressive and irreversible deterioration of cognition that can sometimes be difficult to diagnose, leading to suboptimal patient care. Methods: We developed a predictive model that computes multi-regional statistical morpho-functional mesoscopic traits from T1-weighted MRI scans, with or without cognitive scores. For each patient, a biomarker called “Alzheimer’s Predictive Vector” (ApV) was derived using a two-stage least absolute shrinkage and selection operator (LASSO). Results: The ApV reliably discriminates between people with (ADrp) and without (nADrp) Alzheimer’s related pathologies (98% and 81% accuracy between ADrp - including the early form, mild …

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The Polygenic Risk Score Knowledge Base Offers A Centralized Online Repository For Calculating And Contextualizing Polygenic Risk Scores, Madeline L. Page, Elizabeth L. Vance, Matthew E. Cloward, Ed Ringger, Louisa Dayton, Mark T.W. Ebbert, L. Ravdin, M. Lin, A. Lee, G. Chiang, N. Relkin, R. B. Santulli, M. L. Hynes, M. Seltzer, L. A. Flashman, K. Anderson, K. Blank, G. D. Perlson, S. Kittur, S. Correia, P. Malloy, S. Salloway, S. Potkin, P. Newhouse, M. Sabbagh, A. Garcia, J. Shi, J. Masdeu, A. Williams, J. Mintzer, A. O’Connell, A. Mintz, D. Munic, C. Bernick Dec 2022

The Polygenic Risk Score Knowledge Base Offers A Centralized Online Repository For Calculating And Contextualizing Polygenic Risk Scores, Madeline L. Page, Elizabeth L. Vance, Matthew E. Cloward, Ed Ringger, Louisa Dayton, Mark T.W. Ebbert, L. Ravdin, M. Lin, A. Lee, G. Chiang, N. Relkin, R. B. Santulli, M. L. Hynes, M. Seltzer, L. A. Flashman, K. Anderson, K. Blank, G. D. Perlson, S. Kittur, S. Correia, P. Malloy, S. Salloway, S. Potkin, P. Newhouse, M. Sabbagh, A. Garcia, J. Shi, J. Masdeu, A. Williams, J. Mintzer, A. O’Connell, A. Mintz, D. Munic, C. Bernick

Clinical Research Faculty Publications

The process of identifying suitable genome-wide association (GWA) studies and formatting the data to calculate multiple polygenic risk scores on a single genome can be laborious. Here, we present a centralized polygenic risk score calculator currently containing over 250,000 genetic variant associations from the NHGRI-EBI GWAS Catalog for users to easily calculate sample-specific polygenic risk scores with comparable results to other available tools. Polygenic risk scores are calculated either online through the Polygenic Risk Score Knowledge Base (PRSKB; https://prs.byu.edu) or via a command-line interface. We report study-specific polygenic risk scores across the UK Biobank, 1000 Genomes, and the Alzheimer’s Disease …

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Total Energy Expenditure Is Repeatable In Adults But Not Associated With Short-Term Changes In Body Composition, Rebecca Rimbach, Yosuke Yamada, Hiroyuki Sagayama, Philip N. Ainslie, Lene F. Anderson, Liam J. Anderson, Lenore Arab, Issaad Baddou, Kweku Bedu-Addo, Ellen E. Blaak, Stephane Blanc, Alberto G. Bonomi, Carlijn V.C. Bouten, Pascal Bovet, Maciej S. Buchowski, Nancy F. Butte, Stefan G.J.A. Camps, Graeme L. Close, Jamie A. Cooper, Sai Krupa Das, Lara R. Dugas, Ulf Ekelund, Sonja Entringer, Terrence Forrester, Barry W. Fudge, Annelies H. Goris, Michael Gurven, Catherine Hambly, Asmaa El Hamdouchi, Marije B. Hoos, Sumei Hu, Noorjehan Joonas, Annemiek M. Joosen, Peter Katzmarzyk Dec 2022

Total Energy Expenditure Is Repeatable In Adults But Not Associated With Short-Term Changes In Body Composition, Rebecca Rimbach, Yosuke Yamada, Hiroyuki Sagayama, Philip N. Ainslie, Lene F. Anderson, Liam J. Anderson, Lenore Arab, Issaad Baddou, Kweku Bedu-Addo, Ellen E. Blaak, Stephane Blanc, Alberto G. Bonomi, Carlijn V.C. Bouten, Pascal Bovet, Maciej S. Buchowski, Nancy F. Butte, Stefan G.J.A. Camps, Graeme L. Close, Jamie A. Cooper, Sai Krupa Das, Lara R. Dugas, Ulf Ekelund, Sonja Entringer, Terrence Forrester, Barry W. Fudge, Annelies H. Goris, Michael Gurven, Catherine Hambly, Asmaa El Hamdouchi, Marije B. Hoos, Sumei Hu, Noorjehan Joonas, Annemiek M. Joosen, Peter Katzmarzyk

Clinical Research Faculty Publications

Low total energy expenditure (TEE, MJ/d) has been a hypothesized risk factor for weight gain, but repeatability of TEE, a critical variable in longitudinal studies of energy balance, is understudied. We examine repeated doubly labeled water (DLW) measurements of TEE in 348 adults and 47 children from the IAEA DLW Database (mean ± SD time interval: 1.9 ± 2.9 y) to assess repeatability of TEE, and to examine if TEE adjusted for age, sex, fat-free mass, and fat mass is associated with changes in weight or body composition. Here, we report that repeatability of TEE is high for adults, but …

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Effective Connectivity Is A More Promising Biomarker For Brain Health In Middle-Aged Adults Than Functional Connectivity: Bogalusa Heart Study, Kai Cheng Chuang, Sreekrishna R. Pillai, Lydia Bazzano, Owen T. Carmichael Dec 2022

Effective Connectivity Is A More Promising Biomarker For Brain Health In Middle-Aged Adults Than Functional Connectivity: Bogalusa Heart Study, Kai Cheng Chuang, Sreekrishna R. Pillai, Lydia Bazzano, Owen T. Carmichael

Clinical Research Faculty Publications

Background: Effective connectivity, the causal influence that functional activity in a source brain location exerts over functional activity in a target brain location, has the potential to provide richer information about brain networks than functional connectivity, which only quantifies activity synchrony between regions. However, head-to-head comparisons of effective and functional connectivity from functional MRI data are rare, especially among diverse cognitively healthy middle aged and older adults. Method: 100 Bogalusa Heart Study participants performed a Stroop task during functional MRI (Table 1). Effective connectivity and functional connectivity among 24 regions of interest (ROIs) previously identified as activated by this task …

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Global-Scale Modeling Of Early Factors And Country-Specific Trajectories Of Covid-19 Incidence: A Cross-Sectional Study Of The First 6 Months Of The Pandemic, Sujoy Ghosh, Saikat Sinha Roy Dec 2022

Global-Scale Modeling Of Early Factors And Country-Specific Trajectories Of Covid-19 Incidence: A Cross-Sectional Study Of The First 6 Months Of The Pandemic, Sujoy Ghosh, Saikat Sinha Roy

Division of Basic Science Faculty Publications

Background: Studies examining factors responsible for COVID-19 incidence have been mostly focused at the national or sub-national level. A global-level characterization of contributing factors and temporal trajectories of disease incidence is currently lacking. Here we conducted a global-scale analysis of COVID-19 infections to identify key factors associated with early disease incidence. Additionally, we compared longitudinal trends of COVID-19 incidence at a per-country level, and classified countries based on COVID-19 incidence trajectories and effects of lockdown responses. Methods: This is an observational cross-sectional study covering COVID-19 incidence over the first 6 months of the pandemic (Jan 1, 2020 to June 30, …

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Redox Phospholipidomics Analysis Reveals Specific Oxidized Phospholipids And Regions In The Diabetic Mouse Kidney, Allison Mccrimmon, Sydney Corbin, Bindesh Shrestha, Gregory Roman, Suraj Dhungana, Krisztian Stadler Dec 2022

Redox Phospholipidomics Analysis Reveals Specific Oxidized Phospholipids And Regions In The Diabetic Mouse Kidney, Allison Mccrimmon, Sydney Corbin, Bindesh Shrestha, Gregory Roman, Suraj Dhungana, Krisztian Stadler

Division of Basic Science Faculty Publications

While it is generally accepted that oxidative stress impacts the diabetic kidney and contributes to pathogenesis, there is a substantial lack of knowledge about the molecular entity and anatomic location of a variety of reactive species. Here we provide a novel “oxidative stress map” of the diabetic kidney – the first of its kind, and identify specific, oxidized and other reactive lipids and their location. We used the db/db mouse model and Desorption Electrospray Ionization (DESI) mass spectrometry combined with heatmap image analysis. We analyzed a comprehensive array of phospholipid peroxide species in normal (db/m) and diabetic (db/db) kidneys using …

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Low Total Osteocalcin Levels Are Associated With All-Cause And Cardiovascular Mortality Among Patients With Type 2 Diabetes: A Real-World Study, Yun Shen, Lei Chen, Jian Zhou, Chunfang Wang, Fei Gao, Wei Zhu, Gang Hu, Xiaojing Ma, Han Xia, Yuqian Bao Dec 2022

Low Total Osteocalcin Levels Are Associated With All-Cause And Cardiovascular Mortality Among Patients With Type 2 Diabetes: A Real-World Study, Yun Shen, Lei Chen, Jian Zhou, Chunfang Wang, Fei Gao, Wei Zhu, Gang Hu, Xiaojing Ma, Han Xia, Yuqian Bao

Population and Public Health Science Faculty Publications

Background: The association between osteocalcin and mortality has been scantly studied. We aimed to investigate the association between osteocalcin along with its trajectories and mortality based on long-term longitudinal data. Methods: We performed a retrospective cohort study of 9413 type 2 diabetic patients with at least three measurements of total serum osteocalcin within 3 years since their first inpatient diagnosis of type 2 diabetes. Baseline, mean values of osteocalcin levels and their trajectories were used as exposures. A multivariable-adjusted Cox proportional hazards model was used to estimate the association of osteocalcin levels and their trajectories with mortality. Results: During a …

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Association Mapping Reveals A Reciprocal Virulence/Avirulence Locus Within Diverse Us Pyrenophora Teres F. Maculata Isolates, Shaun J. Clare, Kasia M. Duellman, Jonathan K. Richards, Roshan Sharma Poudel, Lance F. Merrick, Timothy L. Friesen, Robert S. Brueggeman Dec 2022

Association Mapping Reveals A Reciprocal Virulence/Avirulence Locus Within Diverse Us Pyrenophora Teres F. Maculata Isolates, Shaun J. Clare, Kasia M. Duellman, Jonathan K. Richards, Roshan Sharma Poudel, Lance F. Merrick, Timothy L. Friesen, Robert S. Brueggeman

Faculty Publications

Background: Spot form net blotch (SFNB) caused by the necrotrophic fungal pathogen Pyrenophora teres f. maculata (Ptm) is an economically important disease of barley that also infects wheat. Using genetic analysis to characterize loci in Ptm genomes associated with virulence or avirulence is an important step to identify pathogen effectors that determine compatible (virulent) or incompatible (avirulent) interactions with cereal hosts. Association mapping (AM) is a powerful tool for detecting virulence loci utilizing phenotyping and genotyping data generated for natural populations of plant pathogenic fungi. Results: Restriction-site associated DNA genotyping-by-sequencing (RAD-GBS) was used to generate 4,836 single nucleotide polymorphism (SNP) …

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Extensive Morphological And Behavioural Diversity Among Fourteen New And Seven Described Species In Phytophthora Clade 10 And Its Evolutionary Implications, T. Jung, I. Milenković, T. Corcobado, T. Májek, J. Janoušek, T. Kudláček, M. Tomšovský, Z. Nagy, A. Durán, M. Tarigan, E. Sanfuentes Von Stowasser, R. Singh, M. Ferreira, J. F. Webber, B. Scanu, N. M. Chi, P. Q. Thu, M. Junaid, A. Rosmana, B. Baharuddin, T. Kuswinanti, N. Nasri, K. Kageyama, A. Hieno, H. Masuya, S. Uematsu, J. Oliva, M. Redondo, C. Maia, I. Matsiakh, V. Kramarets, R. O’Hanlon, Tomić Dec 2022

Extensive Morphological And Behavioural Diversity Among Fourteen New And Seven Described Species In Phytophthora Clade 10 And Its Evolutionary Implications, T. Jung, I. Milenković, T. Corcobado, T. Májek, J. Janoušek, T. Kudláček, M. Tomšovský, Z. Nagy, A. Durán, M. Tarigan, E. Sanfuentes Von Stowasser, R. Singh, M. Ferreira, J. F. Webber, B. Scanu, N. M. Chi, P. Q. Thu, M. Junaid, A. Rosmana, B. Baharuddin, T. Kuswinanti, N. Nasri, K. Kageyama, A. Hieno, H. Masuya, S. Uematsu, J. Oliva, M. Redondo, C. Maia, I. Matsiakh, V. Kramarets, R. O’Hanlon, Tomić

Faculty Publications

During extensive surveys of global Phytophthora diversity 14 new species detected in natural ecosystems in Chile, Indonesia, USA (Louisiana), Sweden, Ukraine and Vietnam were assigned to Phytophthora major Clade 10 based on a multigene phylogeny of nine nuclear and three mitochondrial gene regions. Clade 10 now comprises three subclades. Subclades 10a and 10b contain species with nonpapillate sporangia, a range of breeding systems and a mainly soil-and waterborne lifestyle. These include the previously described P. afrocarpa, P. gallica and P. intercalaris and eight of the new species: P. ludoviciana, P. procera, P. pseudogallica, P. scandinavica, P. subarctica, P. tenuimura, P. …

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Morphoanatomical And Biochemical Factors Associated With Rice Resistance To The South American Rice Water Weevil, Oryzophagus Oryzae (Coleoptera: Curculionidae), Juliano De Bastos Pazini, José Francisco Da Silva Martins, Keilor Da Rosa Dorneles, Rosane Lopes Crizel, Fernando Felisberto Da Silva, Fábio Clasen Chaves, Juliana Aparecida Fernando, Leandro José Dallagnol, Enio Júnior Seidel, Michael Joseph Stout, Anderson Dionei Grützmacher Dec 2022

Morphoanatomical And Biochemical Factors Associated With Rice Resistance To The South American Rice Water Weevil, Oryzophagus Oryzae (Coleoptera: Curculionidae), Juliano De Bastos Pazini, José Francisco Da Silva Martins, Keilor Da Rosa Dorneles, Rosane Lopes Crizel, Fernando Felisberto Da Silva, Fábio Clasen Chaves, Juliana Aparecida Fernando, Leandro José Dallagnol, Enio Júnior Seidel, Michael Joseph Stout, Anderson Dionei Grützmacher

Faculty Publications

The rice water weevil, Oryzophagus oryzae (Coleoptera: Curculionidae), is an economically important pest of flooded rice paddies throughout South America, and species with similar life histories are present in many rice-producing regions globally (collectively referred to here as RWWs). Plant resistance is a key strategy for management of RWWs; however, the mechanisms responsible for rice resistance to RWWs are poorly understood. We investigated morphoanatomical and biochemical plant traits potentially involved in rice resistance to O. oryzae. Resistance-associated traits were characterized in two cultivars, ‘Dawn’ (resistant) and ‘BRS Pampa CL’ (‘Pamp’ = susceptible), which were selected from among six cultivars on …

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Assigning Culicoides Larvae To Species Using Dna Barcoding Of Adult Females And Phylogenetic Associations, Tao Jin, Claudia Husseneder, Lane Foil Dec 2022

Assigning Culicoides Larvae To Species Using Dna Barcoding Of Adult Females And Phylogenetic Associations, Tao Jin, Claudia Husseneder, Lane Foil

Faculty Publications

Background: Orbivirus-induced hemorrhagic diseases cause high mortality in wild and captive white-tailed deer in North America. The role of different Culicoides species in Orbivirus transmission outside of areas of intensive animal production has not been established. At our study location, bluetongue virus (BTV) RNA-positive female Culicoides debilipalpis pools have been detected annually since 2012 when BTV transmission was noted in a captive deer herd. Identifying specific larval habitats of suspected vectors at active transmission sites is crucial both for identifying the source of the vectors and for subsequently planning intervention actions. Since C. debilipalpis larvae are known to develop in …

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Laboratory Evaluation Of Sugar Alcohols For Control Of Mosquitoes And Other Medically Important Flies, Ilia Rochlin, Gregory White, Nadja Reissen, Dustin Swanson, Lee Cohnstaedt, Madeleine Chura, Kristen Healy, Ary Faraji Dec 2022

Laboratory Evaluation Of Sugar Alcohols For Control Of Mosquitoes And Other Medically Important Flies, Ilia Rochlin, Gregory White, Nadja Reissen, Dustin Swanson, Lee Cohnstaedt, Madeleine Chura, Kristen Healy, Ary Faraji

Faculty Publications

Insecticide application for vector control is the most controversial component of a public health program due to concerns about environmental and human health safety. One approach to overcome this challenge is the use of environmentally benign active ingredients. Among the most promising emerging strategies are attractive toxic sugar baits. Sugar alcohols—naturally occurring molecules safe for human consumption but potentially toxic to insects when ingested, have received increased attention for use with this approach. For this study, we screened the toxicity of four different sugar alcohols on several mosquito species, a biting midge, and a filth fly. Sugar alcohol mortalities exceeded …

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Direct And Indirect Effects Of Planting Density, Nitrogenous Fertilizer And Host Plant Resistance On Rice Herbivores And Their Natural Enemies, Finbarr G. Horgan, Eduardo Crisol-Martínez, Alexander M. Stuart, James M. Villegas, Ainara Peñalver-Cruz, Enrique A. Mundaca, Marivic O. Perez, Carmencita C. Bernal, Maria Liberty P. Almazan, Angelee F. Ramal Dec 2022

Direct And Indirect Effects Of Planting Density, Nitrogenous Fertilizer And Host Plant Resistance On Rice Herbivores And Their Natural Enemies, Finbarr G. Horgan, Eduardo Crisol-Martínez, Alexander M. Stuart, James M. Villegas, Ainara Peñalver-Cruz, Enrique A. Mundaca, Marivic O. Perez, Carmencita C. Bernal, Maria Liberty P. Almazan, Angelee F. Ramal

Faculty Publications

In rice ecosystems, seeding densities can be adjusted to compensate for lower nitrogen levels that reduce GHG emissions, or to increase farm profitability. However, density-induced changes to plant anatomy could affect herbivore-rice interactions, and alter arthropod community dynamics. We conducted an experiment that varied transplanting density (low or high), nitrogenous fertilizer (0, 60 or 150 kg added ha−1) and rice variety (resistant or susceptible to phloem-feeding insects) over two rice-growing seasons. Yields per plot increased with added nitrogen, but were not affected by variety or transplanting density. Planthopper and leafhopper densities were lower on resistant rice and in high-density field …

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A Derived Honey Bee Stock Confers Resistance To Varroa Destructor And Associated Viral Transmission, Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz, Kristen B. Healy Dec 2022

A Derived Honey Bee Stock Confers Resistance To Varroa Destructor And Associated Viral Transmission, Thomas A. O’Shea-Wheller, Frank D. Rinkevich, Robert G. Danka, Michael Simone-Finstrom, Philip G. Tokarz, Kristen B. Healy

Faculty Publications

The ectoparasite Varroa destructor is the greatest threat to managed honey bee (Apis mellifera) colonies globally. Despite significant efforts, novel treatments to control the mite and its vectored pathogens have shown limited efficacy, as the host remains naïve. A prospective solution lies in the development of Varroa-resistant honey bee stocks, but a paucity of rigorous selection data restricts widespread adoption. Here, we characterise the parasite and viral dynamics of a Varroa-resistant honey bee stock, designated ‘Pol-line’, using a large-scale longitudinal study. Results demonstrate markedly reduced Varroa levels in this stock, diminished titres of three major viruses (DWV-A, DWV-B, and CBPV), …

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Examining The Symbioses Between Bioluminescent Vibrio Species And Ponyfishes In The Indian Ocean And Between Vibrio Species And Crassostrea Virginica In The Gulf Of Mexico, Alexandra Chauvin Dec 2022

Examining The Symbioses Between Bioluminescent Vibrio Species And Ponyfishes In The Indian Ocean And Between Vibrio Species And Crassostrea Virginica In The Gulf Of Mexico, Alexandra Chauvin

Honors Capstones

No abstract provided.

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Hurricane Girls, Kallie Comardelle Dec 2022

Hurricane Girls, Kallie Comardelle

Honors Capstones

No abstract provided.

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The Evaluation Of A Clinical Decision Support Tool Using Natural Language Processing To Screen Hospitalized Adults For Unhealthy Substance Use: Protocol For A Quasi-Experimental Design, Cara Joyce, Talar W. Markossian, Jenna Nikolaides, Elisabeth Ramsey, Hale M. Thompson, Juan C. Rojas, Brihat Sharma, Dmitriy Dligach, Madeline K. Oguss, Richard S. Cooper, Majid Afshar Dec 2022

The Evaluation Of A Clinical Decision Support Tool Using Natural Language Processing To Screen Hospitalized Adults For Unhealthy Substance Use: Protocol For A Quasi-Experimental Design, Cara Joyce, Talar W. Markossian, Jenna Nikolaides, Elisabeth Ramsey, Hale M. Thompson, Juan C. Rojas, Brihat Sharma, Dmitriy Dligach, Madeline K. Oguss, Richard S. Cooper, Majid Afshar

Faculty Publications

Background: Automated and data-driven methods for screening using natural language processing (NLP) and machine learning may replace resource-intensive manual approaches in the usual care of patients hospitalized with conditions related to unhealthy substance use. The rigorous evaluation of tools that use artificial intelligence (AI) is necessary to demonstrate effectiveness before system-wide implementation. An NLP tool to use routinely collected data in the electronic health record was previously validated for diagnostic accuracy in a retrospective study for screening unhealthy substance use. Our next step is a noninferiority design incorporated into a research protocol for clinical implementation with prospective evaluation of clinical …

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Association Of Lipid Profile Biomarkers With Breast Cancer By Molecular Subtype: Analysis Of The Mend Study, Anjali Gupta, Veeral Saraiya, April Deveaux, Taofik Oyekunle, Klarissa D. Jackson, Omolola Salako, Adetola Daramola, Allison Hall, Olusegun Alatise, Gabriel Ogun, Adewale Adeniyi, Omobolaji Ayandipo, Thomas Olajide, Olalekan Olasehinde, Olukayode Arowolo, Adewale Adisa, Oludolapo Afuwape, Aralola Olusanya, Aderemi Adegoke, Trygve O. Tollefsbol, Donna Arnett, Michael J. Muehlbauer, Christopher B. Newgard, Samuel Ajayi, Yemi Raji, Timothy Olanrewaju, Charlotte Osafo, Ifeoma Ulasi, Adanze Asinobi, Cheryl A. Winkler, David Burke, Fatiu Arogundade, Ivy Ekem Dec 2022

Association Of Lipid Profile Biomarkers With Breast Cancer By Molecular Subtype: Analysis Of The Mend Study, Anjali Gupta, Veeral Saraiya, April Deveaux, Taofik Oyekunle, Klarissa D. Jackson, Omolola Salako, Adetola Daramola, Allison Hall, Olusegun Alatise, Gabriel Ogun, Adewale Adeniyi, Omobolaji Ayandipo, Thomas Olajide, Olalekan Olasehinde, Olukayode Arowolo, Adewale Adisa, Oludolapo Afuwape, Aralola Olusanya, Aderemi Adegoke, Trygve O. Tollefsbol, Donna Arnett, Michael J. Muehlbauer, Christopher B. Newgard, Samuel Ajayi, Yemi Raji, Timothy Olanrewaju, Charlotte Osafo, Ifeoma Ulasi, Adanze Asinobi, Cheryl A. Winkler, David Burke, Fatiu Arogundade, Ivy Ekem

Faculty Publications

There is conflicting evidence on the role of lipid biomarkers in breast cancer (BC), and no study to our knowledge has examined this association among African women. We estimated odds ratios (ORs) and 95% confidence intervals (95% CI) for the association of lipid biomarkers—total cholesterol, high-density lipoprotein (HDL), low-density lipoprotein (LDL), and triglycerides—with odds of BC overall and by subtype (Luminal A, Luminal B, HER2-enriched and triple-negative or TNBC) for 296 newly diagnosed BC cases and 116 healthy controls in Nigeria. Each unit standard deviation (SD) increase in triglycerides was associated with 39% increased odds of BC in fully adjusted …

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Chromosome Length Genome Assembly Of The Redbanded Stink Bug, Piezodorus Guildinii (Westwood), Surya Saha, K. Clint Allen, Lukas A. Mueller, Gadi V.P. Reddy, Omaththage P. Perera Dec 2022

Chromosome Length Genome Assembly Of The Redbanded Stink Bug, Piezodorus Guildinii (Westwood), Surya Saha, K. Clint Allen, Lukas A. Mueller, Gadi V.P. Reddy, Omaththage P. Perera

Faculty Publications

Objective: The redbanded stink bug (RBSB), Piezodorus guildinii (Hemiptera: Pentatomidae), is native to the Caribbean Basin and is currently considered an invasive pest in Florida, Louisiana, Mississippi, and Texas in the southern United States. Although RBSB is an economically important invasive pest in the USA, relatively few studies have been conducted to understand molecular mechanisms, population genetic structure, and the genetic basis of resistance to insecticides. The objective of this work was to obtain a high-quality genome assembly to develop genomic resources to conduct population genetic, genomic, and physiological studies of the RBSB. Results: The genome of RBSB was sequenced …

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