Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1231 - 1260 of 15703

Full-Text Articles in Entire DC Network

Guidelines For Parenteral Nutrition In Preterm Infants: The American Society For Parenteral And Enteral Nutrition, Daniel T. Robinson, Kara L. Calkins, Yimin Chen, M. Petrea Cober, Gustave H. Falciglia, David D. Church, Jacob Mey, Liam Mckeever, Timothy Sentongo Sep 2023

Guidelines For Parenteral Nutrition In Preterm Infants: The American Society For Parenteral And Enteral Nutrition, Daniel T. Robinson, Kara L. Calkins, Yimin Chen, M. Petrea Cober, Gustave H. Falciglia, David D. Church, Jacob Mey, Liam Mckeever, Timothy Sentongo

Division of Basic Science Faculty Publications

Background: Parenteral nutrition (PN) is prescribed for preterm infants until nutrition needs are met via the enteral route, but unanswered questions remain regarding PN best practices in this population. Methods: An interdisciplinary committee was assembled to answer 12 questions concerning the provision of PN to preterm infants. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) process was used. Questions addressed parenteral macronutrient doses, lipid injectable emulsion (ILE) composition, and clinically relevant outcomes, including PNALD, early childhood growth, and neurodevelopment. Preterm infants with congenital gastrointestinal disorders or infants already diagnosed with necrotizing enterocolitis or PN-associated liver disease (PNALD) at study …

Go to article

Extract Of Artemisia Dracunculus L. Modulates Osteoblast Proliferation And Mineralization, Matthew C. Scott, Aleah Bourgeois, Yongmei Yu, David H. Burk, Brenda J. Smith, Z. Elizabeth Floyd Sep 2023

Extract Of Artemisia Dracunculus L. Modulates Osteoblast Proliferation And Mineralization, Matthew C. Scott, Aleah Bourgeois, Yongmei Yu, David H. Burk, Brenda J. Smith, Z. Elizabeth Floyd

Division of Basic Science Faculty Publications

Thiazolidinediones (TZD) significantly improve insulin sensitivity via action on adipocytes. Unfortunately, TZDs also degrade bone by inhibiting osteoblasts. An extract of Artemisia dracunculus L., termed PMI5011, improves blood glucose and insulin sensitivity via skeletal muscle, rather than fat, and may therefore spare bone. Here, we examine the effects of PMI5011 and an identified active compound within PMI5011 (2′,4′-dihydroxy-4-methoxydihydrochalcone, DMC-2) on pre-osteoblasts. We hypothesized that PMI5011 and DMC-2 will not inhibit osteogenesis. To test our hypothesis, MC3T3-E1 cells were induced in osteogenic media with and without PMI5011 or DMC-2. Cell lysates were probed for osteogenic gene expression and protein content and …

Go to article

Reduced Postabsorptive Interoception Of Nutrients In Obesity: Cause Or Consequence?, Hans Rudolf Berthoud Sep 2023

Reduced Postabsorptive Interoception Of Nutrients In Obesity: Cause Or Consequence?, Hans Rudolf Berthoud

Division of Basic Science Faculty Publications

No abstract provided.

Go to article

A Commentary On Perlstein Et Al. (2023): The Past And Future Of Treating Youth With Limited Prosocial Emotions, Paul J. Frick Sep 2023

A Commentary On Perlstein Et Al. (2023): The Past And Future Of Treating Youth With Limited Prosocial Emotions, Paul J. Frick

Faculty Publications

Perlstein, Fair, Hong, and Waller (Journal of Child Psychology and Psychiatry, 2023) meta-analysis provides a critically important summary of the research on the treatment of children and adolescents with elevated callous–unemotional (CU) traits, 10 years after they were added to diagnostic criteria in the “with Limited Prosocial Emotions” specifier for conduct disorder. Their meta-analysis provides clear and convincing evidence that many treatments that reduce conduct problems in youth are also effective for children with elevated CU traits. However, their findings also indicate that CU traits are a severity indicator, in that youth high on these traits start treatment with more …

Go to article

Tenure Security And Housing Investment: Owner-Occupants And Renters In Bangladesh's Poor Settlements, James Nguyen H. Spencer, Thu Nguyen, Saiful Momen Sep 2023

Tenure Security And Housing Investment: Owner-Occupants And Renters In Bangladesh's Poor Settlements, James Nguyen H. Spencer, Thu Nguyen, Saiful Momen

Faculty Publications

This paper explores the relationship between land tenure security and housing investment among households in Bangladeshi poor settlements. The level of housing investment is measured through the type of physical structure of the house, or more specifically, floor materials. Cluster-robust standard error logistic regression method is utilized to explore this relationship in order to fix the issue of households located in the same settlement being correlated with each other. The results show that houses with greater tenure security, whether owner-occupied or rented out, are more likely than houses with insecure tenure to have cement floors, which are more permanent and …

Go to article

Active Timber Management By Outsourcing Stumpage Price Uncertainty With The American Put Option, Sun Joseph Chang, Fan Zhang Sep 2023

Active Timber Management By Outsourcing Stumpage Price Uncertainty With The American Put Option, Sun Joseph Chang, Fan Zhang

Faculty Publications

Timber production is risky, with price uncertainties caused by stumpage price fluctuations. In this study, the American put option is employed to outsource such uncertainty and establish the reservation prices at various stand ages. Put option values and the reservation prices derived thereof, thus, help forestland owners decide whether the stumpage price is high enough to justify an immediate timber harvest. With a series of simulations, we demonstrated that using an American put option to cover the downside price risk could substantially increase the average land expectation value compared to the certainty case. Besides, the simulations confirm that buying an …

Go to article

Sarcopenic Obesity: Emerging Mechanisms And Therapeutic Potential, Christopher L. Axelrod, Wagner S. Dantas, John P. Kirwan Sep 2023

Sarcopenic Obesity: Emerging Mechanisms And Therapeutic Potential, Christopher L. Axelrod, Wagner S. Dantas, John P. Kirwan

Division of Basic Science Faculty Publications

Sarcopenic obesity, or the loss of muscle mass and function associated with excess adiposity, is a largely untreatable medical condition associated with diminished quality of life and increased risk of mortality. To date, it remains somewhat paradoxical and mechanistically undefined as to why a subset of adults with obesity develop muscular decline, an anabolic stimulus generally associated with retention of lean mass. Here, we review evidence surrounding the definition, etiology, and treatment of sarcopenic obesity with an emphasis on emerging regulatory nodes with therapeutic potential. We review the available clinical evidence largely focused on diet, lifestyle, and behavioral interventions to …

Go to article

24-H Movement Behaviors And The Perinatal Period, Chelsea L. Kracht, Leanne M. Redman Sep 2023

24-H Movement Behaviors And The Perinatal Period, Chelsea L. Kracht, Leanne M. Redman

Clinical Research Faculty Publications

No abstract provided.

Go to article

Persistent Hypoxia With Intermittent Aggravation Causes Imbalance In Smad3/Myocardin-Related Transcription Factor Signaling With Consequent Endothelial Senescence And Pulmonary Arterial Remodeling, Jiaxin Hu, Prachi Singh, Jingrui Li, Jing Zhang, Fei Li, Hehe Zhang, Jiang Xie Sep 2023

Persistent Hypoxia With Intermittent Aggravation Causes Imbalance In Smad3/Myocardin-Related Transcription Factor Signaling With Consequent Endothelial Senescence And Pulmonary Arterial Remodeling, Jiaxin Hu, Prachi Singh, Jingrui Li, Jing Zhang, Fei Li, Hehe Zhang, Jiang Xie

Clinical Research Faculty Publications

Loss of Smad3 and the consequent activation of myocardin-related transcription factor (MRTF) are associated with vascular pathologies. This study aimed to examine the impact of persistent hypoxia with intermittent aggravation (PI hypoxia) on cellular senescence and pulmonary arterial remodeling mediated by the Smad3/MRTF imbalance. We examined the effects of PI hypoxia on the Smad3/MRTF pathway and cellular senescence using human pulmonary artery endothelial cells (HPAECs) and in vivo studies in rats. The senescent degree was evaluated using β-galactosidase staining, p16 quantitation and the measurement of senescence-associated secretory phenotype. Structural data in the pathological analysis of pulmonary artery remodeling were collected. …

Go to article

Leveraging Cultural Wealth, Identities And Motivation: How Diverse Intersectional Groups Of Low-Income Undergraduate Stem Students Persist In Collegiate Stem Environments, Raeshan D. Davis, Zakiya Wilson-Kennedy Sep 2023

Leveraging Cultural Wealth, Identities And Motivation: How Diverse Intersectional Groups Of Low-Income Undergraduate Stem Students Persist In Collegiate Stem Environments, Raeshan D. Davis, Zakiya Wilson-Kennedy

Faculty Publications

Grounded in a conceptual framework incorporating intersectionality, motivation, self-determination, and self-efficacy, this empirical study investigated how individuals’ identities, mindsets, and resources in educational environments intentionally cultivated to support their decision-making, development, and connections in the science community, can significantly increase the recruitment, persistence, and success of low-income, academically talented science students from diverse backgrounds. Several factors—academic performance in coursework, self-image, self-agency, financial support, and social integration in the science culture—continue to significantly impact student retention and persistence in STEM disciplines. Many of these factors are negatively affected based on a students’ intersecting identities, which can be detrimental to their academic …

Go to article

Extreme Variability In A Long-Duration Gamma-Ray Burst Associated With A Kilonova, P. Veres, P. N. Bhat, E. Burns, R. Hamburg, N. Fraija, D. Kocevski, R. Preece, S. Poolakkil, N. Christensen, M. A. Bizouard, T. Dal Canton, S. Bala, E. Bissaldi, M. S. Briggs, W. Cleveland, A. Goldstein, B. A. Hristov, C. M. Hui, S. Lesage, B. Mailyan, O. J. Roberts, C. A. Wilson-Hodge Sep 2023

Extreme Variability In A Long-Duration Gamma-Ray Burst Associated With A Kilonova, P. Veres, P. N. Bhat, E. Burns, R. Hamburg, N. Fraija, D. Kocevski, R. Preece, S. Poolakkil, N. Christensen, M. A. Bizouard, T. Dal Canton, S. Bala, E. Bissaldi, M. S. Briggs, W. Cleveland, A. Goldstein, B. A. Hristov, C. M. Hui, S. Lesage, B. Mailyan, O. J. Roberts, C. A. Wilson-Hodge

Faculty Publications

The recent discovery of a kilonova from the long-duration gamma-ray burst (GRB) GRB 211211A challenges classification schemes based on temporal information alone. Gamma-ray properties of GRB 211211A reveal an extreme event, which stands out among both short and long GRBs. We find very short variations (few milliseconds) in the lightcurve of GRB 211211A and estimate ∼1000 for the Lorentz factor of the outflow. We discuss the relevance of the short variations in identifying similar long GRBs resulting from compact mergers. Our findings indicate that in future gravitational-wave follow-up campaigns, some long-duration GRBs should be treated as possible strong gravitational-wave counterparts.

Go to article

Nucleon-Pair Shell Model Within A Symmetry Broken Basis, Bingcheng He, Siyao Zhang, Yu Zhang, Lei Li, Yanan Luo, Feng Pan, Jerry P. Draayer Sep 2023

Nucleon-Pair Shell Model Within A Symmetry Broken Basis, Bingcheng He, Siyao Zhang, Yu Zhang, Lei Li, Yanan Luo, Feng Pan, Jerry P. Draayer

Faculty Publications

The nucleon-pair shell model (NPSM) within the framework of a broken symmetry basis is studied. The results demonstrate the validity of such a scheme, which in turn leads to a significant reduction in the dimensionality of the multi-pair configuration space. Specifically, in the case of an axially-deformed basis, the results yield a satisfactory description of the low-lying spectrum, even without the need for applying the projection procedure. In the case of a triaxially-deformed basis, the result of variation after angular momentum projection suggest a potential for using the NPSM to find exact solutions in a semi-magic system.

Go to article

Probiotic Characteristics Of Streptococcus Thermophilus And Lactobacillus Bulgaricus As Influenced By New Food Sources, Ashly Castro, Ricardo S. Aleman, Miguel Tabora, Shirin Kazemzadeh, Leyla K. Pournaki, Roberto Cedillos, Jhunior Marcia, Kayanush Aryana Sep 2023

Probiotic Characteristics Of Streptococcus Thermophilus And Lactobacillus Bulgaricus As Influenced By New Food Sources, Ashly Castro, Ricardo S. Aleman, Miguel Tabora, Shirin Kazemzadeh, Leyla K. Pournaki, Roberto Cedillos, Jhunior Marcia, Kayanush Aryana

Faculty Publications

The current research aimed to evaluate the potential effects of Solanum mammosum, Dioon mejiae, and Amanita caesarea on Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus survival and performance after exposure to different harsh conditions such as bile, acid, gastric juice, and lysozyme to mimic the digestive system from mouth to the intestine. Probiotic protease activity was observed to evaluate the proteolytic system. Probiotics were cultured in a broth mixed with plant material, and after incubation, the results were compared to the control sample. Therefore, plant material’s total phenolic compound, total carotenoid compound, antioxidant activity, sugar profile, and acid profile were …

Go to article

Effects Of Weevil (Rhynchophorus Palmarum), Teosinte (Dioon Mejiae) And Caesar’S Mushroom (Amanita Caesarea) On The Properties Of Lactobacillus Acidophilus La-K, Ricardo S. Aleman, Dany Avila, Allan Avila, Jhunior Marcia, David Picha, Kayanush Aryana, Ismael Montero-Fernández Sep 2023

Effects Of Weevil (Rhynchophorus Palmarum), Teosinte (Dioon Mejiae) And Caesar’S Mushroom (Amanita Caesarea) On The Properties Of Lactobacillus Acidophilus La-K, Ricardo S. Aleman, Dany Avila, Allan Avila, Jhunior Marcia, David Picha, Kayanush Aryana, Ismael Montero-Fernández

Faculty Publications

Weevil (Rhynchophorus palmarum) powder, teosinte (Dioon mejiae) and Caesar’s mushroom (Amanita caesarea) flour have bioactive compounds with significant nutritional applications. This paper aimed to examine the influence of weevil, teosinte, and mushroom powders on the protease activity, acid tolerance, bile tolerance, lysozyme tolerance, and gastric juice resistance ability of Lactobacillus acidophilus LA-K. Acid tolerance was determined by adjusting the pH of MRS broth to 2.0 for L. acidophilus incubated under aerobic conditions at 37 °C. Bile tolerance was determined by incorporating 0.3% of oxgall. Protease activity was determined spectrophotometrically at 340 nm. Resistance to 100 mg/L of lysozyme in an …

Go to article

Benzylfentanyl As A Surrogate Template For Fentanyl-Selective Imprinted Polymers, Md Ragib Hasan, David A. Spivak Sep 2023

Benzylfentanyl As A Surrogate Template For Fentanyl-Selective Imprinted Polymers, Md Ragib Hasan, David A. Spivak

Faculty Publications

The illicit use of fentanyl has led to hundreds of thousands of opioid-related deaths worldwide. Therefore, the detection of fentanyl by law enforcement and recreational users is of utmost importance. However, current detection methods are expensive, time-consuming, require special storage conditions, and necessitate complex instrumentation that is generally unportable and requires skilled personnel to operate. An alternative approach would be using molecularly imprinted polymers (MIPs) as the recognition component of a handheld sensor, testing strip, or color-based assay. In this work, a molecularly imprinted polymer was constructed using the functional monomer methacrylic acid (MAA) and the cross-linking monomer ethyleneglycol dimethacrylate …

Go to article

Esprit De Corps And Thinking On (And With) Your Feet: Standard, Enactive, And Poststructuralist Aspects Of Relational Autonomy And Collective Intentionality In Team Sports, John Protevi Sep 2023

Esprit De Corps And Thinking On (And With) Your Feet: Standard, Enactive, And Poststructuralist Aspects Of Relational Autonomy And Collective Intentionality In Team Sports, John Protevi

Faculty Publications

To concretize my discussion of relational autonomy and collective intentionality, I present a case study in which we can see several themes in that scholarly literature exemplified in a real-life event. The event in question is the Megan Rapinoe-Abby Wambach goal in the quarterfinals of the Women's World Cup of 2011, one of the greatest in all World Cup history (A video clip of the goal can be found at: https://www.youtube.com/watch?v=0B4q6di-3fg.). In the case study, I concentrate on the ontological status of two key aspects of soccer, the linking of teammates by a pass, and the emergence of the team …

Go to article

Yolov4_Cspbi: Enhanced Land Target Detection Model, Lirong Yin, Lei Wang, Jianqiang Li, Siyu Lu, Jiawei Tian, Zhengtong Yin, Shan Liu, Wenfeng Zheng Sep 2023

Yolov4_Cspbi: Enhanced Land Target Detection Model, Lirong Yin, Lei Wang, Jianqiang Li, Siyu Lu, Jiawei Tian, Zhengtong Yin, Shan Liu, Wenfeng Zheng

Faculty Publications

The identification of small land targets in remote sensing imagery has emerged as a significant research objective. Despite significant advancements in object detection strategies based on deep learning for visible remote sensing images, the performance of detecting a small and densely distributed number of small targets remains suboptimal. To address this issue, this study introduces an improved model named YOLOV4_CPSBi, based on the YOLOV4 architecture, specifically designed to enhance the detection capability of small land targets in remote sensing imagery. The proposed model enhances the traditional CSPNet by redefining its channel partitioning and integrating this enhanced structure into the neck …

Go to article

From Social To Collective Capital: Factors Behind The Success Of A Covid-19 Task Force, Lauren Mckeague, Sophie G. Wenzel, Robin H. Lemaire Sep 2023

From Social To Collective Capital: Factors Behind The Success Of A Covid-19 Task Force, Lauren Mckeague, Sophie G. Wenzel, Robin H. Lemaire

Faculty Publications

Social capital offers an important framework for understanding community disaster preparedness and resiliency at both the individual and community levels. Social capital also offers a lens for understanding interorganizational collaboration, particularly for public health disasters. Yet missing from the literature is an exploration of how social capital at the individual level may develop into collective capital at the group level, to then be leveraged for community public health disaster management. We conducted a mixed-methods case study of an emergent rural task force that formed to manage the COVID-19 pandemic. Using social network and qualitative analysis, we find that pre-existing relationships, …

Go to article

Investigating Expectancy Values In Online Apparel Rental During And After The Covid-19 Pandemic: Moderating Effects Of Fashion Leadership, Sukyung Seo, Kittichai Watchravesringkan, Uma Swamy, Chunmin Lang Sep 2023

Investigating Expectancy Values In Online Apparel Rental During And After The Covid-19 Pandemic: Moderating Effects Of Fashion Leadership, Sukyung Seo, Kittichai Watchravesringkan, Uma Swamy, Chunmin Lang

Faculty Publications

Online apparel renting has become a popular type of consumption. However, the COVID-19 pandemic has disrupted the sharing economy, including online renting. This cross-sectional study examined the effects of expectancy values on intention towards online apparel rental during and after the COVID-19 pandemic and investigated the moderating role of personal traits of fashion leadership. A total of 431 valid samples from college students in the US were collected. Structural equation modeling (SEM) was conducted to test the hypothesized relationships, and moderation analysis was performed to test the moderating effects of fashion leadership. The results indicated that expectancy values affecting consumer …

Go to article

Investigation Of Welding Repair Methods For Thermoplastic Composite Joints, Wencai Li, Genevieve Palardy Sep 2023

Investigation Of Welding Repair Methods For Thermoplastic Composite Joints, Wencai Li, Genevieve Palardy

Faculty Publications

Repair is a common process to extend the service life of composite structures, and there is a need for techniques compatible with thermoplastic composites (TPCs). As the assembly of TPC joints through welding is gaining importance, evaluating their potential for repairability is essential. This work aims to develop novel techniques to repair welded TPC joints: 1) Successive repair (three cycles) of broken joints by ultrasonic-assisted method with neat and nanocomposite films, and 2) one-step repair using ultrasonic welding (USW) and resistance heating. It was found from tensile testing that multi-walled carbon nanotube/polypropylene (MWCNT/PP) films partially restored the lap shear strength …

Go to article

A Sensitive Strain Sensor Based On Multi-Walled Carbon Nanotubes/Polyaniline/Silicone Rubber Nanocomposite For Human Motion Detection, Seyedmajid Hosseini, Mohsen Norouzi, Jian Xu Sep 2023

A Sensitive Strain Sensor Based On Multi-Walled Carbon Nanotubes/Polyaniline/Silicone Rubber Nanocomposite For Human Motion Detection, Seyedmajid Hosseini, Mohsen Norouzi, Jian Xu

Faculty Publications

Strain sensors play a pivotal role in quantifying stress and strain across diverse domains, encompassing engineering, industry, and medicine. Their applicability has recently extended into the realm of wearable electronics, enabling real-time monitoring of body movements. However, conventional strain sensors, while extensively employed, grapple with limitations such as diminished sensitivity, suboptimal tensile strength, and susceptibility to environmental factors. In contrast, polymer-based composite strain sensors have gained prominence for their capability to surmount these challenges. The integration of carbon nanotubes (CNTs) as reinforcing agents within the polymer matrix ushers in a transformative era, bolstering mechanical strength, electrical conductivity, and thermal stability. …

Go to article

Assessing The Threat Of Rosetta 2 On Apple Silicon Devices, Raphaela Mettig, Charles Glass, Andrew Case, Golden G. Richard Sep 2023

Assessing The Threat Of Rosetta 2 On Apple Silicon Devices, Raphaela Mettig, Charles Glass, Andrew Case, Golden G. Richard

Faculty Publications

In November 2020, Apple introduced a new architecture, Apple Silicon, that would power all new laptops and desktops. Based on ARM64 and with many custom features added by Apple, this marked a complete switch from the Intel-based systems that have powered Apple laptops and desktops for many years. With such a radical change, it was obvious that many existing digital forensics and incident response techniques would need to be re-evaluated on the platform. Similarly, several new additions to the operating system are interesting as potential abuse vectors for malware and malicious actors. In this paper, we document our effort to …

Go to article

Bim And Digital Twins In Infrastructure Projects: An Overview From The Transportation Professional's Perspective, Natállia Mendes Aug 2023

Bim And Digital Twins In Infrastructure Projects: An Overview From The Transportation Professional's Perspective, Natállia Mendes

LSU Master's Theses

Transport infrastructure has undergone significant changes in recent years due to the digitalization of construction methods. Consequently, there is an increasing demand for more productive and cost-effective technologies to optimize various aspects such as time, cost, changes, waste, and errors in projects. Notably, technologies such as Building Information Modeling (BIM) and Digital Twin (DT) hold the potential to enhance the performance of infrastructure projects. While BIM has received substantial attention in recent years, Digital Twin is relatively new to the construction industry. This leads to a scarcity of studies on DT and its integration with other emerging technologies like BIM. …

Go to article

Evaluation Of Organic And Synthetic Herbicides Applications On Indicators Of Soil Health And Weed Suppression In A Conventional Cropping System In Louisiana, Caitlin Denux Aug 2023

Evaluation Of Organic And Synthetic Herbicides Applications On Indicators Of Soil Health And Weed Suppression In A Conventional Cropping System In Louisiana, Caitlin Denux

LSU Doctoral Dissertations

Synthetic herbicides, with their varying modes of action, are well known for their efficiency in the suppression and control of weed species in U.S. agriculture. However, the consequences of using synthetic herbicides without attention to the surrounding environment can produce chemical run-off, changes in soil health and soil health conditions, and create herbicide-resistant weeds. These consequences have encouraged growers to find alternatives in their weed management programs. In this study, organic and synthetic herbicides were assessed on how well they performed in weed suppression surveys, and their potential effects on soil health indicators. Commonly used indicators include soil pH, β-glucosidase …

Go to article

Double Barrier Backward Doubly Stochastic Differential Equations, Tadashi Hayashi Aug 2023

Double Barrier Backward Doubly Stochastic Differential Equations, Tadashi Hayashi

Journal of Stochastic Analysis

No abstract provided.

Go to article

The Impact Of Physical Exercise On Health-Related Quality Of Life In Inflammatory Bowel Disease, Ayokunle T. Abegunde, Daniela Goyes, Umer Farooq, Amy H. Luke, Elizabeth Huggins, Richard S. Cooper, Lara R. Dugas Aug 2023

The Impact Of Physical Exercise On Health-Related Quality Of Life In Inflammatory Bowel Disease, Ayokunle T. Abegunde, Daniela Goyes, Umer Farooq, Amy H. Luke, Elizabeth Huggins, Richard S. Cooper, Lara R. Dugas

Faculty Publications

Objectives: This is a protocol for a Cochrane Review (intervention). The objectives are as follows:. Primary objective: to determine the effect of structured physical activity and exercise therapy compared to placebo or normal physical activity on HRQOL of people with IBD (UC, CD, IBDU). Secondary objective: to evaluate the impact of these physical activity interventions on maintenance of remission and fatigue.

Go to article

Direct Evidence On The Crossover From Bcc To Fcc Stability: A Lattice-Based Aggregation-Volume-Bias Monte Carlo Approach To Polymorphism, Bin Chen Aug 2023

Direct Evidence On The Crossover From Bcc To Fcc Stability: A Lattice-Based Aggregation-Volume-Bias Monte Carlo Approach To Polymorphism, Bin Chen

Faculty Publications

A lattice-based version of the aggregation-volume-bias Monte Carlo method that was introduced recently has allowed for the extension of the calculation of the nucleation free energies from liquid clusters to solid clusters. Here, it was used to calculate the nucleation free energies of both bcc and fcc clusters formed by Lennard-Jones particles. Under the simulation conditions considered in this study, a cross-over of the thermodynamic stability from the bcc to the fcc structure was observed directly from the free energy results. In addition, the free energies obtained for both types of clusters were used to extrapolate bulk phase information, including …

Go to article

Modeling Of Heat And Mass Transfer In Flat Heat Pipes, Salar Saadatian Aug 2023

Modeling Of Heat And Mass Transfer In Flat Heat Pipes, Salar Saadatian

LSU Doctoral Dissertations

Phase-change phenomenon is ubiquitous in nature and widely utilized in thermal management of computer chips. Flat heat pipes have been extensively used in thermal management of microelectronic devices. However, existing research mainly concentrates on developing numerical models and lacks a systematic analytical approach to elucidate the working mechanism of flat heat pipes. We consider a horizontal flat heat pipe with an idealized porous wick. The pores in the wick are straight circular capillaries running along and across the wick and are filled with a liquid. The rest of the pipe is filled with its vapor. The mass evaporative rate at …

Go to article

Symmetric Functions Algebras (Sfa) Iii: Stochastic And Constant Row Sum Matrices, Philip Feinsilver Aug 2023

Symmetric Functions Algebras (Sfa) Iii: Stochastic And Constant Row Sum Matrices, Philip Feinsilver

Journal of Stochastic Analysis

No abstract provided.

Go to article

The Pathophysiology Of Equine Glandular Gastric Disease: Investigating The Role Of The Mucosal Microbiome And Bile Acid Reflux, Linda Paul Aug 2023

The Pathophysiology Of Equine Glandular Gastric Disease: Investigating The Role Of The Mucosal Microbiome And Bile Acid Reflux, Linda Paul

LSU Doctoral Dissertations

Equine glandular gastric disease (EGGD) is a common disease of athletic horses that can affect performance and welfare. Clinical signs are non-specific and diagnosis is made using gastroscopy after a prolonged fasting period. Effective prevention and treatment strategies for EGGD are lacking despite its widespread prevalence and negative effects. The goal of this research was to investigate the pathophysiology of EGGD. Objectives included: 1) compare the gastric glandular mucosal microbiome in horses with and without EGGD, 2) assess the influence of dietary and management factors on the gastric microbiome, and 3) evaluate the pyloric gastric fluid bile acid profile in …

Go to article

First Prev Next Last