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Walk A Mile In My Shoes: The Disadvantage That Lies At The Intersection Of Race And Gender Through The Lens Of Kamala Harris, Wennafer Caela Donald Mar 2021

Walk A Mile In My Shoes: The Disadvantage That Lies At The Intersection Of Race And Gender Through The Lens Of Kamala Harris, Wennafer Caela Donald

Honors Capstones

No abstract provided.

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Finite Element Approximation Of Nonlocal Dynamic Fracture Models, P. K. Jha, R. Lipton Mar 2021

Finite Element Approximation Of Nonlocal Dynamic Fracture Models, P. K. Jha, R. Lipton

Faculty Publications

In this work we estimate the convergence rate for time stepping schemes applied to nonlocal dynamic fracture modeling. Here we use the nonlocal formulation given by the bond based peridynamic equation of motion. We begin by establishing the existence of H2 peridynamic solutions over any finite time interval. For this model the gradients can become large and steep slopes appear and localize when the non-locality of the model tends to zero. In this treatment spatial approximation by finite elements are used. We consider the central-difference scheme for time discretization and linear finite elements for discretization in the spatial variable. The …

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Prescribed Exercise To Reduce Recidivism After Weight Loss-Pilot (Prevail-P): Design, Methods And Rationale, Damon L. Swift, Joshua E. Mcgee, Anna C. Huff, Marie C. Clunan, Nicole R. Gniewek, Taylor T. Brown, Briceida G. Osborne, Colleen Bucher, Charles J. Tanner, Savanna G. Barefoot, Patricia Brophy, Angela Clark, Gabriel S. Dubis, Corby K. Martin, Robbie A. Beyl, Joseph A. Houmard, Robert A. Carels, Walter Pories, Laura E. Matarese Mar 2021

Prescribed Exercise To Reduce Recidivism After Weight Loss-Pilot (Prevail-P): Design, Methods And Rationale, Damon L. Swift, Joshua E. Mcgee, Anna C. Huff, Marie C. Clunan, Nicole R. Gniewek, Taylor T. Brown, Briceida G. Osborne, Colleen Bucher, Charles J. Tanner, Savanna G. Barefoot, Patricia Brophy, Angela Clark, Gabriel S. Dubis, Corby K. Martin, Robbie A. Beyl, Joseph A. Houmard, Robert A. Carels, Walter Pories, Laura E. Matarese

Clinical Research Faculty Publications

Clinically significant weight loss is associated with health benefits for overweight and obese adults. Participation in adequate amounts of physical activity is critical for weight maintenance. However, the recommended amount of physical activity needed to promote weight maintenance is based primarily on retrospective studies that quantified physical activity levels through questionnaires which tend to overestimate physical activity levels. In addition, the present literature has provided little data on the impact of these physical activity levels on cardiovascular and diabetes risk factors, which may have equal or more clinical importance than weight changes. The Prescribed Exercise to Reduce Recidivism After Weight …

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Revamping Ecosystem Services Through Agroecology—The Case Of Cereals, Gomathy Sethuraman, Nurul Amalina Mohd Zain, Sumiani Yusoff, Yin Mei Ng, Niranjan Baisakh, Acga Cheng Mar 2021

Revamping Ecosystem Services Through Agroecology—The Case Of Cereals, Gomathy Sethuraman, Nurul Amalina Mohd Zain, Sumiani Yusoff, Yin Mei Ng, Niranjan Baisakh, Acga Cheng

Faculty Publications

Globally, farming systems are mostly dominated by monoculture, which has the advantage of profitability at the expense of ecological systems. Recent years have witnessed an increasing mo-mentum in global efforts to deploy sustainable agriculture practices that mimic ecological processes, with agroecology at the forefront. In addition to the ecological aspect, agroecology also encompasses economic and social aspects targeting the whole food system. Transformative agroecology has been recognized as a stepping stone to achieving several Sustainable Development Goals (SDGs), due to its great potential to build climate change-resilient farming systems while enhancing ecosystem services and reducing biodiversity loss. Nonetheless, the available …

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Heterogeneous Contributions Of Change In Population Distribution Of Body Mass Index To Change In Obesity And Underweight, Maria L.C. Iurilli, Bin Zhou, James E. Bennett, Rodrigo M. Carrillo-Larco, Marisa K. Sophiea, Andrea Rodriguez-Martinez, Honor Bixby, Bethlehem D. Solomon, Cristina Taddei, Goodarz Danaei, Mariachiara Di Cesare, Gretchen A. Stevens, Leanne M. Riley, Stefan Savin, Melanie J. Cowan, Pascal Bovet, Albertino Damasceno, Adela Chirita-Emandi, Alison J. Hayes, Nayu Ikeda, Rod T. Jackson, Young Ho Khang, Avula Laxmaiah, Jing Liu, J. Jaime Miranda, Olfa Saidi, Sylvain Sebert, Maroje Sorić, Gregor Starc, Edward W. Gregg, Leandra Abarca-Gómez, Ziad A. Abdeen, Shynar Abdrakhmanova, Suhaila Abdul Ghaffar Mar 2021

Heterogeneous Contributions Of Change In Population Distribution Of Body Mass Index To Change In Obesity And Underweight, Maria L.C. Iurilli, Bin Zhou, James E. Bennett, Rodrigo M. Carrillo-Larco, Marisa K. Sophiea, Andrea Rodriguez-Martinez, Honor Bixby, Bethlehem D. Solomon, Cristina Taddei, Goodarz Danaei, Mariachiara Di Cesare, Gretchen A. Stevens, Leanne M. Riley, Stefan Savin, Melanie J. Cowan, Pascal Bovet, Albertino Damasceno, Adela Chirita-Emandi, Alison J. Hayes, Nayu Ikeda, Rod T. Jackson, Young Ho Khang, Avula Laxmaiah, Jing Liu, J. Jaime Miranda, Olfa Saidi, Sylvain Sebert, Maroje Sorić, Gregor Starc, Edward W. Gregg, Leandra Abarca-Gómez, Ziad A. Abdeen, Shynar Abdrakhmanova, Suhaila Abdul Ghaffar

Population and Public Health Science Faculty Publications

From 1985 to 2016, the prevalence of underweight decreased, and that of obesity and severe obesity increased, in most regions, with significant variation in the magnitude of these changes across regions. We investigated how much change in mean body mass index (BMI) explains changes in the prevalence of underweight, obesity, and severe obesity in different regions using data from 2896 population-based studies with 187 million participants. Changes in the prevalence of underweight and total obesity, and to a lesser extent severe obesity, are largely driven by shifts in the distribution of BMI, with smaller contributions from changes in the shape …

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Characterization, Immobilization, And Polymer Related Applications Of Watermelon Seed Powder, A Practical Source Of Urease Enzyme, Anthony Quan Quoc Mai Feb 2021

Characterization, Immobilization, And Polymer Related Applications Of Watermelon Seed Powder, A Practical Source Of Urease Enzyme, Anthony Quan Quoc Mai

LSU Doctoral Dissertations

Urease enzyme was crystallized almost a century ago, and to this day its intrinsic stability is not ideal for everyday applications. This work introduces a new process by which a naturally encapsulated material, watermelon seed powder (WMSP), is characterized for its stability and activity. WMSP enzymatic activity has been measured for over a year at various storage conditions—exposed to ambient atmosphere for a year, WMSP retained above 90% activity. In aqueous conditions, the enzyme maintained above 60% activity after two months; with the addition of a preservative that number stays at about 90%. There is a pH shift of the …

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First Exit-Time Analysis For An Approximate Barndorff-Nielsen And Shephard Model With Stationary Self-Decomposable Variance Process, Shantanu Awasthi, Indranil Sengupta Feb 2021

First Exit-Time Analysis For An Approximate Barndorff-Nielsen And Shephard Model With Stationary Self-Decomposable Variance Process, Shantanu Awasthi, Indranil Sengupta

Journal of Stochastic Analysis

No abstract provided.

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Quantum Theories Associated To Increasing Hilbert Space Filtrations And Generalized Jacobi 3–Diagonal Relation, Luigi Accardi, Yun Gang Lu Feb 2021

Quantum Theories Associated To Increasing Hilbert Space Filtrations And Generalized Jacobi 3–Diagonal Relation, Luigi Accardi, Yun Gang Lu

Journal of Stochastic Analysis

No abstract provided.

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Rate Of Convergence In The Central Limit Theorem For Iid Pareto Variables, Claas Becker, Manuel Bohnet, Sarah Kummert Feb 2021

Rate Of Convergence In The Central Limit Theorem For Iid Pareto Variables, Claas Becker, Manuel Bohnet, Sarah Kummert

Journal of Stochastic Analysis

No abstract provided.

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Annihilation And Control Of Chiral Domain Walls With Magnetic Fields, Sunil K. Karna, Madalynn Marshall, Weiwei Xie, Lisa Debeer-Schmitt, David P. Young, Ilya Vekhter, William A. Shelton, Andras Kovács, Michalis Charilaou, John F. Ditusa Feb 2021

Annihilation And Control Of Chiral Domain Walls With Magnetic Fields, Sunil K. Karna, Madalynn Marshall, Weiwei Xie, Lisa Debeer-Schmitt, David P. Young, Ilya Vekhter, William A. Shelton, Andras Kovács, Michalis Charilaou, John F. Ditusa

Faculty Publications

The control of domain walls is central to nearly all magnetic technologies, particularly for information storage and spintronics. Creative attempts to increase storage density need to overcome volatility due to thermal fluctuations of nanoscopic domains and heating limitations. Topological defects, such as solitons, skyrmions, and merons, may be much less susceptible to fluctuations, owing to topological constraints, while also being controllable with low current densities. Here, we present the first evidence for soliton/soliton and soliton/antisoliton domain walls in the hexagonal chiral magnet Mn1/3NbS2 that respond asymmetrically to magnetic fields and exhibit pair-annihilation. This is important because it suggests the possibility …

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Noncentral Limit Theorem For Large Wishart Matrices With Hermite Entries, Charles-Philippe Diez, Ciprian A. Tudor Feb 2021

Noncentral Limit Theorem For Large Wishart Matrices With Hermite Entries, Charles-Philippe Diez, Ciprian A. Tudor

Journal of Stochastic Analysis

No abstract provided.

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Mosquito Vector Production Across Socio-Economic Divides In Baton Rouge, Louisiana, Rebeca De Jesús Crespo, Madison Harrison, Rachel Rogers, Randy Vaeth Feb 2021

Mosquito Vector Production Across Socio-Economic Divides In Baton Rouge, Louisiana, Rebeca De Jesús Crespo, Madison Harrison, Rachel Rogers, Randy Vaeth

Faculty Publications

No abstract provided.

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Ensemble Machine Learning Assisted Reservoir Characterization Using Field Production Data–An Offshore Field Case Study, Baozhong Wang, Jyotsna Sharma, Jianhua Chen, Patricia Persaud Feb 2021

Ensemble Machine Learning Assisted Reservoir Characterization Using Field Production Data–An Offshore Field Case Study, Baozhong Wang, Jyotsna Sharma, Jianhua Chen, Patricia Persaud

Faculty Publications

Estimation of fluid saturation is an important step in dynamic reservoir characterization. Machine learning techniques have been increasingly used in recent years for reservoir saturation prediction workflows. However, most of these studies require input parameters derived from cores, petrophysical logs, or seismic data, which may not always be readily available. Additionally, very few studies incorporate the production data, which is an important reflection of the dynamic reservoir properties and also typically the most frequently and reliably measured quantity throughout the life of a field. In this research, the random forest ensemble machine learning algorithm is implemented that uses the field-wide …

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Fuzzy P-Value Of Hypotheses Tests With Crisp Data Using Non-Asymptotic Fuzzy Estimators, Nikos Mylonas, Basil K. Papadopoulos Feb 2021

Fuzzy P-Value Of Hypotheses Tests With Crisp Data Using Non-Asymptotic Fuzzy Estimators, Nikos Mylonas, Basil K. Papadopoulos

Journal of Stochastic Analysis

No abstract provided.

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Documentation Of Atlantic Tarpon (Megalops Atlanticus) Space Use And Move Persistence In The Northern Gulf Of Mexico Facilitated By Angler Advocates, J. Marcus Drymon, Matthew B. Jargowsky, Michael A. Dance, Mitchell Lovell, Crystal Lou Allen Hightower, Amanda E. Jefferson, Andrea M. Kroetz, Sean P. Powers Feb 2021

Documentation Of Atlantic Tarpon (Megalops Atlanticus) Space Use And Move Persistence In The Northern Gulf Of Mexico Facilitated By Angler Advocates, J. Marcus Drymon, Matthew B. Jargowsky, Michael A. Dance, Mitchell Lovell, Crystal Lou Allen Hightower, Amanda E. Jefferson, Andrea M. Kroetz, Sean P. Powers

Faculty Publications

Atlantic tarpon (Megalops atlanticus, hereafter tarpon) are facing a multitude of stressors and are considered Vulnerable by the IUCN; however, significant gaps remain in our understanding of tarpon space use and movement. From 2018 to 2019, citizen scientists facilitated tagging of 23 tarpon with SPOT tags to examine space use and movement across the northern Gulf of Mexico. Movement-based kernel densities were used to estimate simplified biased random bridge-based utilization distributions and a joint move persistence model was used to estimate a behavioral index for each fish. Tarpon showed consistent east–west movement from the Alabama/Florida border to Louisiana, and utilization …

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How Much Hvac Energy Could Be Saved From The Occupant-Centric Smart Home Thermostat: A Nationwide Simulation Study, Zhihong Pang, Yan Chen, Jian Zhang, Zheng O'Neill, Hwakong Cheng, Bing Dong Feb 2021

How Much Hvac Energy Could Be Saved From The Occupant-Centric Smart Home Thermostat: A Nationwide Simulation Study, Zhihong Pang, Yan Chen, Jian Zhang, Zheng O'Neill, Hwakong Cheng, Bing Dong

Faculty Publications

Thermostat management plays a significant role in household energy conservation. This study aims to conduct a systematic and comprehensive analysis to quantify the energy savings potential of the occupant-centric smart thermostat based on a large-scale nationwide simulation infrastructure. The single-family Residential Prototype Building Model was used to represent a typical single-family detached house in the U.S. A generalized random occupancy presence schedule was created based on an occupancy probability schedule and k-means clustering algorithm. A total of 16,000 simulations, which were composed of four building foundation types, four heating source types, 40 American cities, five building energy code versions, and …

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Geometric Distinguishability Measures Limit Quantum Channel Estimation And Discrimination, Vishal Katariya, Mark M. Wilde Feb 2021

Geometric Distinguishability Measures Limit Quantum Channel Estimation And Discrimination, Vishal Katariya, Mark M. Wilde

Faculty Publications

Quantum channel estimation and discrimination are fundamentally related information processing tasks of interest in quantum information science. In this paper, we analyze these tasks by employing the right logarithmic derivative Fisher information and the geometric Rényi relative entropy, respectively, and we also identify connections between these distinguishability measures. A key result of our paper is that a chain-rule property holds for the right logarithmic derivative Fisher information and the geometric Rényi relative entropy for the interval α∈ (0 , 1) of the Rényi parameter α. In channel estimation, these results imply a condition for the unattainability of Heisenberg scaling, while …

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Areal Probability Of Precipitation In Moist Tropical Air Masses For The United States, Cade Reesman, Paul Miller, Rebecca D’Antonio, Kevin Gilmore, Ben Schott, Chris Bannan Feb 2021

Areal Probability Of Precipitation In Moist Tropical Air Masses For The United States, Cade Reesman, Paul Miller, Rebecca D’Antonio, Kevin Gilmore, Ben Schott, Chris Bannan

Faculty Publications

No abstract provided.

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Novel Adjective Processing In Preschool Children: Evidence From Event-Related Brain Potentials, Katelyn L. Gerwin, Laurence B. Leonard, Jennifer Schumaker, Patricia Deevy, Eileen Haebig, Christine Weber Feb 2021

Novel Adjective Processing In Preschool Children: Evidence From Event-Related Brain Potentials, Katelyn L. Gerwin, Laurence B. Leonard, Jennifer Schumaker, Patricia Deevy, Eileen Haebig, Christine Weber

Faculty Publications

Purpose: Recent findings in preschool children indicated novel adjective recall was enhanced when learned using repeated retrieval with contextual reinstatement (RRCR) compared to repeated study (RS). Recall was similar for learned pictures used during training and new (generalized) pictures with the same adjective features. The current study compared the effects of learning method and learned/ generalized pictures on the neural processes mediating the recognition of novel adjectives. Method: Twenty typically developing children aged 4;6– 5;11 (years;months) learned four novel adjectives, two using RRCR and two using RS. Five-minute and 1-week tests assessed adjective recall using learned and generalized pictures. Also, …

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Interdependencies Between Acoustic And High-Speed Videoendoscopy Parameters, Patrick Schlegel, Andreas M. Kist, Melda Kunduk, Stephan Dürr, Michael Döllinger, Anne Schützenberger Feb 2021

Interdependencies Between Acoustic And High-Speed Videoendoscopy Parameters, Patrick Schlegel, Andreas M. Kist, Melda Kunduk, Stephan Dürr, Michael Döllinger, Anne Schützenberger

Faculty Publications

In voice research, uncovering relations between the oscillating vocal folds, being the sound source of phonation, and the resulting perceived acoustic signal are of great interest. This is especially the case in the context of voice disorders, such as functional dysphonia (FD). We investigated 250 high-speed videoendoscopy (HSV) recordings with simultaneously recorded acoustic signals (124 healthy females, 60 FD females, 44 healthy males, 22 FD males). 35 glottal area waveform (GAW) parameters and 14 acoustic parameters were calculated for each recording. Linear and non-linear relations between GAW and acoustic parameters were investigated using Pearson correlation coefficients (PCC) and distance correlation …

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Disturbed Amazonian Forests Support Diminished Breeding Bird Communities, Cameron L. Rutt, Michael D. Kaller, Philip C. Stouffer Feb 2021

Disturbed Amazonian Forests Support Diminished Breeding Bird Communities, Cameron L. Rutt, Michael D. Kaller, Philip C. Stouffer

Faculty Publications

Twenty percent of the Brazilian Amazon has now been deforested, and deforestation rates are increasing. This compels us to evaluate the conservation potential of human-modified landscapes; yet the ecological value of regenerating and fragmented Amazonian forests remains poorly understood. To date, most faunal studies in disturbed forests have examined metrics derived from presence or abundance. Although valuable, these data cannot tell us how old-growth species are using disturbed forests. In this study, we complement presence data with breeding observations to assess more comprehensively the habitat quality of disturbed forests in central Amazonia. We synthesized breeding evidence from standardized passive mist-netting, …

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The Impact Of Covid-19 Stay-At-Home Orders On Health Behaviors In Adults, Emily W. Flanagan, Robbie A. Beyl, S. Nicole Fearnbach, Abby D. Altazan, Corby K. Martin, Leanne M. Redman Feb 2021

The Impact Of Covid-19 Stay-At-Home Orders On Health Behaviors In Adults, Emily W. Flanagan, Robbie A. Beyl, S. Nicole Fearnbach, Abby D. Altazan, Corby K. Martin, Leanne M. Redman

Clinical Research Faculty Publications

Objective: Stay-at-home orders in response to the coronavirus disease 2019 (COVID-19) pandemic have forced abrupt changes to daily routines. This study assessed lifestyle changes across different BMI classifications in response to the global pandemic. Methods: The online survey targeting adults was distributed in April 2020 and collected information on dietary behaviors, physical activity, and mental health. All questions were presented as “before” and “since” the COVID-19 pandemic. Results: In total, 7,753 participants were included; 32.2% of the sample were individuals with normal weight, 32.1% had overweight, and 34.0% had obesity. During the pandemic, overall scores for healthy eating increased (P < 0.001), owing to less eating out and increased cooking (P < 0.001). Sedentary leisure behaviors increased, while time spent in physical activity (absolute time and intensity adjusted) declined (P < 0.001). Anxiety scores increased 8.78 ± 0.21 during the pandemic, and the magnitude of increase was significantly greater in people with obesity (P ≤ 0.01). Weight gain was reported in 27.5% of the total sample compared with 33.4% in participants with obesity. Conclusions: The COVID-19 pandemic has produced significant health effects, well beyond the virus itself. Government mandates together with fear of contracting the virus have significantly impacted lifestyle behaviors alongside declines in mental health. These deleterious impacts have disproportionally affected individuals with obesity.

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Positional Differences In Pre-Season Scrimmage Performance Of Division I Collegiate Football Players, Kate S. Early, Nathan P. Lemoine, Annie Simoneaux, Shelly Mullenix, Jack Marucci, Michael J. Maclellan, Neil M. Johannsen Feb 2021

Positional Differences In Pre-Season Scrimmage Performance Of Division I Collegiate Football Players, Kate S. Early, Nathan P. Lemoine, Annie Simoneaux, Shelly Mullenix, Jack Marucci, Michael J. Maclellan, Neil M. Johannsen

Clinical Research Faculty Publications

This study aimed to describe the physical demands of American football players using novel performance analysis techniques. Heart rate (HR) and accelerometer-based activity levels were observed across two pre-season scrimmages in 23 Division I collegiate football players (age: 19 ± 1 y, height: 1.90 ± 0.06 m, weight: 116.2 ± 19.4 kg). Data were analyzed using a MATLAB program and inter-rater reproducibility assessed using inter-class correlations (ICC). Players were analyzed by side (offense/defense) and position (skill/non-skill). Performance variables assessed in bursts of activity included burst duration, HRmean and HRmax (bpm), and mean activity (vector magnitude units [vmu]). Exercise intensity was …

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Time In Range In Relation To All-Cause And Cardiovascular Mortality In Patients With Type 2 Diabetes: A Prospective Cohort Study, Jingyi Lu, Chunfang Wang, Yun Shen, Lei Chen, Lei Zhang, Jinghao Cai, Wei Lu, Wei Zhu, Gang Hu, Tian Xia, Jian Zhou Feb 2021

Time In Range In Relation To All-Cause And Cardiovascular Mortality In Patients With Type 2 Diabetes: A Prospective Cohort Study, Jingyi Lu, Chunfang Wang, Yun Shen, Lei Chen, Lei Zhang, Jinghao Cai, Wei Lu, Wei Zhu, Gang Hu, Tian Xia, Jian Zhou

Population and Public Health Science Faculty Publications

OBJECTIVE There is growing evidence linking time in range (TIR), an emerging metric for assessing glycemic control, to diabetes-related outcomes. We aimed to investigate the association between TIR and mortality in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS A total of 6,225 adult patients with type 2 diabetes were included from January 2005 to December 2015 from a single center in Shanghai, China. TIR was measured with continuous glucose monitoring at baseline, and the participants were stratified into four groups by TIR: >85%, 71–85%, 51–70%, and £50%. Cox proportional hazards regression models were used to estimate the association …

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Mobile Technology For Improved Contraceptive Care In Morocco, Manal Kharbouch, Ali Idri, Taoufik Rachad, Hassan Alami, Leanne Redman, Youssef Stelate Feb 2021

Mobile Technology For Improved Contraceptive Care In Morocco, Manal Kharbouch, Ali Idri, Taoufik Rachad, Hassan Alami, Leanne Redman, Youssef Stelate

Clinical Research Faculty Publications

The fulfillment of unmet needs for contraception can help women reach their reproductive goals. Therefore, there is a growing concern worldwide about contraception and women’s knowledge of making an advised choice about it. In this aspect, an outgrown number of apps are now available providing information concerning contraception whether it concerns natural contraception or modern contraception. However, vast amounts of these apps contain inaccurate sexual health facts and non-evidence-based information concerning contraception. On these bases, and in respect to: (1) the needs of women to effectively prevent unintended pregnancies while conducting a stress-free healthy lifestyle. (2) the World Health Organization …

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Association Of Initial Β-Amyloid Levels With Subsequent Flortaucipir Positron Emission Tomography Changes In Persons Without Cognitive Impairment, David S. Knopman, Emily S. Lundt, Terry M. Therneau, Sabrina M. Albertson, Jeffrey L. Gunter, Matthew L. Senjem, Christopher G. Schwarz, Michelle M. Mielke, Mary M. Machulda, Bradley F. Boeve, David T. Jones, Jon Graff-Radford, Prashanthi Vemuri, Kejal Kantarci, Val J. Lowe, Ronald C. Petersen, Clifford R. Jack, Paul Aisen, Michael Weiner, William Jagust, John Q. Trojanowki, Arthur W. Toga, Laurel Beckett, Robert C. Green, Andrew J. Saykin, Leslie M. Shaw, Zaven Khachaturian, Greg Sorensen, Maria Carrillo, Lew Kuller, Marc Raichle, Steven Paul, Peter Davies, Howard Fillit Feb 2021

Association Of Initial Β-Amyloid Levels With Subsequent Flortaucipir Positron Emission Tomography Changes In Persons Without Cognitive Impairment, David S. Knopman, Emily S. Lundt, Terry M. Therneau, Sabrina M. Albertson, Jeffrey L. Gunter, Matthew L. Senjem, Christopher G. Schwarz, Michelle M. Mielke, Mary M. Machulda, Bradley F. Boeve, David T. Jones, Jon Graff-Radford, Prashanthi Vemuri, Kejal Kantarci, Val J. Lowe, Ronald C. Petersen, Clifford R. Jack, Paul Aisen, Michael Weiner, William Jagust, John Q. Trojanowki, Arthur W. Toga, Laurel Beckett, Robert C. Green, Andrew J. Saykin, Leslie M. Shaw, Zaven Khachaturian, Greg Sorensen, Maria Carrillo, Lew Kuller, Marc Raichle, Steven Paul, Peter Davies, Howard Fillit

Clinical Research Faculty Publications

Importance: Tau accumulation in Alzheimer disease (AD) is closely associated with cognitive impairment. Quantitating tau accumulation by positron emission tomography (PET) will be a useful outcome measure for future clinical trials in the AD spectrum. Objective: To investigate the association of β-amyloid (Aβ) on PET with subsequent tau accumulation on PET in persons who were cognitively unimpaired (CU) to gain insight into temporal associations between Aβ and tau accumulation and inform clinical trial design. Design, Setting, and Participants: This cohort study included individuals aged 65 to 85 years who were CU and had participated in the Mayo Clinic Study of …

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Developing Teachers’ Ability To Provide Culturally Relevant Pedagogy, London R. Moore Jan 2021

Developing Teachers’ Ability To Provide Culturally Relevant Pedagogy, London R. Moore

LSU Doctoral Dissertations

The purpose of this study was to understand the nature of developing teachers’ ability to provide Culturally Relevant Pedagogy (CRP). This study places the teacher as the catalyst for change in African American students’ experience. Based on an examination of past research, this study turned to CRP as the instructional shift needed to impact the educational experience for African American students and a professional learning community (PLC) as the vehicle for developing eight teachers’ ability to provide CRP in their classrooms. The study was guided by the following research question: What is the nature of developing teachers ability to provide …

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Cognitive Maturity As An Intervening Influence On Exposure To Adverse Childhood Experiences, Negative Attributions, And Symptoms Of Depression Among Pre-Adolescent And Adolescent Youth., Mckenzie Marie Ketchum Jan 2021

Cognitive Maturity As An Intervening Influence On Exposure To Adverse Childhood Experiences, Negative Attributions, And Symptoms Of Depression Among Pre-Adolescent And Adolescent Youth., Mckenzie Marie Ketchum

LSU Doctoral Dissertations

Most depression interventions targeted to youth are adapted from adult curricula without enough consideration given to the developmental level and capacity of the intended audience (Kovacs & Lopez-Duran, 2012). Although depression in youth has received recognition and treatment, there remains a gap between the theoretical knowledge base of youth cognitive development and the application of this knowledge to the innovation of developmentally appropriate depression interventions suited for youth of varying levels of cognitive maturity. The current study investigated the influence of cognitive development over the moderation of negative attributions on the relationship between exposure to Adverse Childhood Experiences (ACEs) and …

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A Virtual Community Of Practice: Impact On Instructional Design Knowledge And The Cultural Elements Evident Within Interactions Among Nigerian Faculty, Hala Walid Esmail Jan 2021

A Virtual Community Of Practice: Impact On Instructional Design Knowledge And The Cultural Elements Evident Within Interactions Among Nigerian Faculty, Hala Walid Esmail

LSU Doctoral Dissertations

With the expansion of higher education and the growth of online course offerings in Sub-Saharan Africa, there is a critical need to support faculty in developing the necessary skills to teach effectively online. The purpose of this qualitative, single-case study was to examine the nature of the discourse in which faculty members engaged within a virtual community of practice that was created to support their instructional design and online teaching efforts. The community of practice framework and the related learning theories of situated learning and social constructivism served as the underpinning of this study. The E-Learning Program was facilitated via …

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Asymptotic Security Of Discrete-Modulation Protocols For Continuous-Variable Quantum Key Distribution, Eneet Kaur, Saikat Guha, Mark M. Wilde Jan 2021

Asymptotic Security Of Discrete-Modulation Protocols For Continuous-Variable Quantum Key Distribution, Eneet Kaur, Saikat Guha, Mark M. Wilde

Faculty Publications

We consider discrete-modulation protocols for continuous-variable quantum key distribution (CV-QKD) that employ a modulation constellation consisting of a finite number of coherent states and that use a homodyne- or a heterodyne-detection receiver. We establish a security proof for collective attacks in the asymptotic regime, and we provide a formula for an achievable secret-key rate. Previous works established security proofs for discrete-modulation CV-QKD protocols that use two or three coherent states. The main constituents of our approach include approximating a complex, isotropic Gaussian probability distribution by a finite-size Gauss-Hermite constellation, applying entropic continuity bounds, and leveraging previous security proofs for Gaussian-modulation …

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