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Electronic Cigarette Nicotine Flux, Nicotine Yield, And Particulate Matter Emissions: Impact Of Device And Liquid Heterogeneity, Eric K. Soule, Shannon Mayne, William Snipes, Elizabeth K. Do, Travis Theall, Christoph Höchsmann, Soha Talih, Corby K. Martin, Thomas Eissenberg, Bernard F. Fuemmeler Mar 2023

Electronic Cigarette Nicotine Flux, Nicotine Yield, And Particulate Matter Emissions: Impact Of Device And Liquid Heterogeneity, Eric K. Soule, Shannon Mayne, William Snipes, Elizabeth K. Do, Travis Theall, Christoph Höchsmann, Soha Talih, Corby K. Martin, Thomas Eissenberg, Bernard F. Fuemmeler

Clinical Research Faculty Publications

Introduction: Electronic cigarettes (ECIGs) heat a nicotine-containing liquid to produce an inhalable aerosol. ECIG power (wattage) and liquid nicotine concentration are two factors that predict nicotine emission rate ("flux"). These factors can vary greatly across devices and users. Aims and Methods: The purpose of this study was to examine ECIG device and liquid heterogeneity in "real world"settings and the association with predicted nicotine flux, nicotine yield, and total particulate matter (TPM) emissions. Past 30-day ECIG users (n = 84; mean age = 23.8 years [SD = 9.6]) reported device and liquid characteristics. Device power was measured via multimeter, device display …

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A Fracture Multiscale Model For Peridynamic Enrichment Within The Partition Of Unity Method, Matthias Birner, Patrick Diehl, Robert Lipton, Marc Alexander Schweitzer Mar 2023

A Fracture Multiscale Model For Peridynamic Enrichment Within The Partition Of Unity Method, Matthias Birner, Patrick Diehl, Robert Lipton, Marc Alexander Schweitzer

Faculty Publications

Partition of unity methods are of domain decomposition type and provide the opportunity for multiscale and multiphysics numerical modeling. Different physical models can exist within a partition of unity method scheme for handling problems with zones of linear elasticity and zones where fractures occur. Here, the peridynamic model is used in regions of fracture and smooth partition of unity methods is used in the surrounding linear elastic media. Our method is novel in that we evolve the crack path using peridynamics and apply the partition of unity method to compute the elastic fields in the neighborhood of the crack tip. …

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Grb 221009a: The Boat, Eric Burns, Dmitry Svinkin, Edward Fenimore, D. Alexander Kann, José Feliciano Agüí Fernández, Dmitry Frederiks, Rachel Hamburg, Stephen Lesage, Yuri Temiraev, Anastasia Tsvetkova, Elisabetta Bissaldi, Michael S. Briggs, Sarah Dalessi, Rachel Dunwoody, Cori Fletcher, Adam Goldstein, C. Michelle Hui, Boyan A. Hristov, Daniel Kocevski, Alexandra L. Lysenko, Bagrat Mailyan, Joseph Mangan, Sheila Mcbreen, Judith Racusin, Anna Ridnaia, Oliver J. Roberts, Mikhail Ulanov, Peter Veres, Colleen A. Wilson-Hodge, Joshua Wood Mar 2023

Grb 221009a: The Boat, Eric Burns, Dmitry Svinkin, Edward Fenimore, D. Alexander Kann, José Feliciano Agüí Fernández, Dmitry Frederiks, Rachel Hamburg, Stephen Lesage, Yuri Temiraev, Anastasia Tsvetkova, Elisabetta Bissaldi, Michael S. Briggs, Sarah Dalessi, Rachel Dunwoody, Cori Fletcher, Adam Goldstein, C. Michelle Hui, Boyan A. Hristov, Daniel Kocevski, Alexandra L. Lysenko, Bagrat Mailyan, Joseph Mangan, Sheila Mcbreen, Judith Racusin, Anna Ridnaia, Oliver J. Roberts, Mikhail Ulanov, Peter Veres, Colleen A. Wilson-Hodge, Joshua Wood

Faculty Publications

GRB 221009A has been referred to as the brightest of all time (BOAT). We investigate the veracity of this statement by comparing it with a half century of prompt gamma-ray burst observations. This burst is the brightest ever detected by the measures of peak flux and fluence. Unexpectedly, GRB 221009A has the highest isotropic-equivalent total energy ever identified, while the peak luminosity is at the ∼99th percentile of the known distribution. We explore how such a burst can be powered and discuss potential implications for ultralong and high-redshift gamma-ray bursts. By geometric extrapolation of the total fluence and peak flux …

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Dna Assays For Genetic Discrimination Of Three Phragmites Australis Subspecies In The United States, Denise L. Lindsay, Xin Guan, Nathan E. Harms, James T. Cronin, Laura A. Meyerson, Richard F. Lance Mar 2023

Dna Assays For Genetic Discrimination Of Three Phragmites Australis Subspecies In The United States, Denise L. Lindsay, Xin Guan, Nathan E. Harms, James T. Cronin, Laura A. Meyerson, Richard F. Lance

Faculty Publications

Premise: To genetically discriminate subspecies of the common reed (Phragmites australis), we developed real-time quantitative (qPCR) assays for identifying P. australis subsp. americanus, P. australis subsp. australis, and P. australis subsp. berlandieri. Methods and Results: Utilizing study-generated chloroplast DNA sequences, we developed three novel qPCR assays. Assays were verified on individuals of each subspecies and against two non-target species, Arundo donax and Phalaris arundinacea. One assay amplifies only P. australis subsp. americanus, one amplifies P. australis subsp. australis and/or P. australis subsp. berlandieri, and one amplifies P. australis subsp. americanus and/or P. australis subsp. australis. This protocol enhances currently available …

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Pseudomonas Aeruginosa Dps (Pa0962) Functions In H2o2 Mediated Oxidative Stress Defense And Exhibits In Vitro Dna Cleaving Activity, Nimesha Rajapaksha, Anabel Soldano, Huili Yao, Fabrizio Donnarumma, Maithri M. Kashipathy, Steve Seibold, Kevin P. Battaile, Scott Lovell, Mario Rivera Mar 2023

Pseudomonas Aeruginosa Dps (Pa0962) Functions In H2o2 Mediated Oxidative Stress Defense And Exhibits In Vitro Dna Cleaving Activity, Nimesha Rajapaksha, Anabel Soldano, Huili Yao, Fabrizio Donnarumma, Maithri M. Kashipathy, Steve Seibold, Kevin P. Battaile, Scott Lovell, Mario Rivera

Faculty Publications

We report the structural, biochemical, and functional characterization of the product of gene PA0962 from Pseudomonas aeruginosa PAO1. The protein, termed Pa Dps, adopts the Dps subunit fold and oligomerizes into a nearly spherical 12-mer quaternary structure at pH 6.0 or in the presence of divalent cations at neutral pH and above. The 12-Mer Pa Dps contains two di-iron centers at the interface of each subunit dimer, coordinated by conserved His, Glu, and Asp residues. In vitro, the di-iron centers catalyze the oxidation of Fe2+ utilizing H2O2 (not O2) as an oxidant, suggesting Pa Dps functions to aid P. …

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Atmospheric Density Inversion Based On Swarm-C Satellite Accelerometer, Lirong Yin, Lei Wang, Jiawei Tian, Zhengtong Yin, Mingzhe Liu, Wenfeng Zheng Mar 2023

Atmospheric Density Inversion Based On Swarm-C Satellite Accelerometer, Lirong Yin, Lei Wang, Jiawei Tian, Zhengtong Yin, Mingzhe Liu, Wenfeng Zheng

Faculty Publications

We used the Swarm-C accelerometer data to invert the orbital atmospheric density in this study. First, the Swarm-C satellite mission data were obtained from the ESA’s public data platform, and preliminary data error correction was performed. This paper refers to the calibration method of GRACE-A satellite accelerometer data. It adds linear temperature correction on the original basis. Moreover, this study’s accelerometer data correction results were compared with the data correction results published by the ESA. In order to explore the influence of light radiation on the accelerometer, we established a geometric model of Swarm-C to simulate the physical shape of …

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Machine Learning-Based Surrogate Models And Transfer Learning For Derivative Free Optimization Of Ht-Pem Fuel Cells, Luis A. Briceno-Mena, Christopher G. Arges, Jose A. Romagnoli Mar 2023

Machine Learning-Based Surrogate Models And Transfer Learning For Derivative Free Optimization Of Ht-Pem Fuel Cells, Luis A. Briceno-Mena, Christopher G. Arges, Jose A. Romagnoli

Faculty Publications

Widespread adoption of high-temperature polymer electrolyte membrane electrochemical systems, such as fuel cells (HT-PEMFCs), requires models and computational tools for accurate optimization and guiding new materials for enhancing performance and durability. In this contribution, knowledge-based modelling and data-driven modelling are combined using Few-Shot Learning and implementing an Automated Machine Learning framework for the generation of Machine Learning-based surrogate models. Applicability of the resulting model for derivative-free optimization is demonstrated. Additionally, a way of considering extrapolation in the optimization task is presented. Results show that although extrapolation is needed to achieve better solutions during optimization, it can be monitored and managed. …

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Surface Plasmon Resonance (Spr) Sensor For Cancer Biomarker Detection, Sreyashi Das, Ram Devireddy, Manas Ranjan Gartia Mar 2023

Surface Plasmon Resonance (Spr) Sensor For Cancer Biomarker Detection, Sreyashi Das, Ram Devireddy, Manas Ranjan Gartia

Faculty Publications

A biomarker is a physiological observable marker that acts as a stand-in and, in the best-case scenario, forecasts a clinically significant outcome. Diagnostic biomarkers are more convenient and cost-effective than directly measuring the ultimate clinical outcome. Cancer is among the most prominent global health problems and a major cause of morbidity and death globally. Therefore, cancer biomarker assays that are trustworthy, consistent, precise, and verified are desperately needed. Biomarker-based tumor detection holds a lot of promise for improving disease knowledge at the molecular scale and early detection and surveillance. In contrast to conventional approaches, surface plasmon resonance (SPR) allows for …

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On The Effect Of Environmental Temperature On Fracture Fatigue Entropy, Mohammad A. Amooie, M. M. Khonsari Mar 2023

On The Effect Of Environmental Temperature On Fracture Fatigue Entropy, Mohammad A. Amooie, M. M. Khonsari

Faculty Publications

Fracture behavior of carbon steel 1018 operating in low-temperature environments is investigated. Specifically, fully-reversed bending experimental tests are performed to examine the efficacy of applying the concept of Fracture Fatigue Entropy (FFE) for predicting fatigue life at different environmental temperatures. A large cooling chamber was constructed that houses the entire bending test rig and maintains the environmental temperature at the desired value down to −10 °C. It is shown that under conditions tested, fatigue life improves at lower operating temperatures. Results also reveal that FFE remains nearly constant and can be used for reliable prediction of fatigue life. Illustrative examples …

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A New Generation Of Dense-Graded Asphalt Mixtures With Superior Performance Against Stripping And Moisture Damage, Mostafa Elseifi, Zahid Hossain, Md. T.A. Sarkar, Hossam Abohamer, Mohammad Oyan Mar 2023

A New Generation Of Dense-Graded Asphalt Mixtures With Superior Performance Against Stripping And Moisture Damage, Mostafa Elseifi, Zahid Hossain, Md. T.A. Sarkar, Hossam Abohamer, Mohammad Oyan

Publications

The presence of moisture beneath the pavement surface is a matter of great concerns as it is responsible for significant distresses such as asphalt concrete (AC) stripping, fatigue cracking, rutting, and poor durability of asphalt mixes. The objective of this study was to evaluate and recommend an asphalt mixture design that would provide superior performance against AC stripping and cracking. To achieve this objective, a laboratory test factorial was developed to evaluate the use of nanomaterials, emerging anti-stripping agents, warm-mix asphalt technologies, and adhesion promotors. In the experimental program, the modified Lottman test (AASHTO T 283) and the Indirect Tensile …

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Chemical-Free Photocatalytic Water Treatment, Ella Sheets Mar 2023

Chemical-Free Photocatalytic Water Treatment, Ella Sheets

Honors Capstones

No abstract provided.

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Pricing Multi-Asset Contingent Claims In A Multi-Dimensional Binomial Market, Jarek Kedra, Assaf Libman, Victoria Steblovskaya Feb 2023

Pricing Multi-Asset Contingent Claims In A Multi-Dimensional Binomial Market, Jarek Kedra, Assaf Libman, Victoria Steblovskaya

Journal of Stochastic Analysis

No abstract provided.

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Ice-Crystal-Templated “Accordion-Like” Cellulose Nanofiber/Mxene Composite Aerogels For Sensitive Wearable Pressure Sensors, Wangwang Xu, Qinglin Wu, Jaegyoung Gwon, Jin Woo Choi Feb 2023

Ice-Crystal-Templated “Accordion-Like” Cellulose Nanofiber/Mxene Composite Aerogels For Sensitive Wearable Pressure Sensors, Wangwang Xu, Qinglin Wu, Jaegyoung Gwon, Jin Woo Choi

Faculty Publications

Exfoliated MXene nanosheets are integrated with cellulose nanofibers (CNFs) to form composite aerogels with high electric conductivity. The combination of CNFs and MXene nanosheets forms a unique “accordion-like” hierarchical architecture with MXene-CNF pillared layers through ice-crystal templating. Benefiting from the special “layer-strut” structure, the MXene/CNF composite aerogels have low density (50 mg/cm3), excellent compressibility and recoverability, as well as superior fatigue resistance (up to 1000 cycles). When being used as a piezoresistive sensor, the composite aerogel exhibits high sensitivity upon different strains, stable sensing performance with various compressive frequencies, broad detection range, and quick responsiveness (0.48 s). Moreover, the piezoresistive …

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Florawear: Wearable Living Interface, Hye Yeon Nam, Janiece Campbell, Andrew M. Webb, Brendan Harmon Feb 2023

Florawear: Wearable Living Interface, Hye Yeon Nam, Janiece Campbell, Andrew M. Webb, Brendan Harmon

Faculty Publications

While nature can benefit people both mentally and physically, contemporary society has become increasingly disconnected from nature. To rebuild a stronger connection with nature in our everyday life, we introduce FloraWear, a do-it-yourself, wearable living interface, that enables people to easily and closely connect with plants. This pictorial introduces how knowledge is built and shared with others using hybrid craft and fabrication, illustrates the material experiments and design development for FloraWear, and discusses how it affects wearers. Then we summarize how FloraWear can help catalyze a shift in people's perspectives towards nature. By developing emotional ties to their wearable plants, …

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Asprosin Promotes Feeding Through Sk Channel-Dependent Activation Of Agrp Neurons, Bing Feng, Hesong Liu, Ila Mishra, Clemens Duerrschmid, Peiyu Gao, Pingwen Xu, Chunmei Wang, Yanlin He Feb 2023

Asprosin Promotes Feeding Through Sk Channel-Dependent Activation Of Agrp Neurons, Bing Feng, Hesong Liu, Ila Mishra, Clemens Duerrschmid, Peiyu Gao, Pingwen Xu, Chunmei Wang, Yanlin He

Division of Basic Science Faculty Publications

Asprosin, a recently identified adipokine, activates agouti-related peptide (AgRP) neurons in the arcuate nucleus of the hypothalamus (ARH) via binding to protein tyrosine phosphatase receptor δ (Ptprd) to increase food intake. However, the intracellular mechanisms responsible for asprosin/Ptprd-mediated activation of AgRPARH neurons remain unknown. Here, we demonstrate that the small-conductance calcium-activated potassium (SK) channel is required for the stimulatory effects of asprosin/Ptprd on AgRPARH neurons. Specifically, we found that deficiency or elevation of circulating asprosin increased or decreased the SK current in AgRPARH neurons, respectively. AgRPARH-specific deletion of SK3 (an SK channel subtype highly expressed in AgRPARH neurons) blocked asprosin-induced …

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Hybrid Modeling For Electrochemical Systems, Luis Alejandro Briceno-Mena Feb 2023

Hybrid Modeling For Electrochemical Systems, Luis Alejandro Briceno-Mena

LSU Doctoral Dissertations

The discovery of new materials like catalysts, polymeric films, and biomolecules, is driven by industrial needs such as improving reaction or separation selectivity, enhancing therapeutic effects on medical treatments, or reducing costs of replacement. However, deployment of these advances in industrial applications is often hindered by the lack of models needed for design and optimization. Due to the novelty of materials and devices, experimental data and first principles' knowledge are scarce, making it hard to build models either via data-driven or knowledge based approaches. In this context, a way to efficiently combine domain knowledge with data could provide a pathway …

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Analysis And Technical Optimization Of Processing Condition For Better Quality Of Robusta Coffee Production, Usman Ahmad, Khalimatus Sa’Diyah, Sathivel Subramaniam Feb 2023

Analysis And Technical Optimization Of Processing Condition For Better Quality Of Robusta Coffee Production, Usman Ahmad, Khalimatus Sa’Diyah, Sathivel Subramaniam

Faculty Publications

The wet processing of robusta coffee starts with harvesting coffee cherries, followed by sorting the cherries, pulping, fermentation, washing, drying, hard skin hulling, bean sorting, and packaging. Soaking fruit before pulping is an alternative for coffee farmers to delay the pulping process if time does not al-low it. The fermentation process aims to remove mucus that is firmly attached to the hard skin. The addition of L. casei bacteria can accelerate the process but affect the final taste. This study aimed to optimize the duration of soaking and fermentation processes for obtaining coffee beans with a minimum number of unpeeled …

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Enhanced Phase Sensitivity In A Mach-Zehnder Interferometer Via Photon Recycling, Dong Li, Chun Hua Yuan, Xiaoping Ma, Qingle Wang, Hwang Lee, Yao Yao, Weiping Zhang Feb 2023

Enhanced Phase Sensitivity In A Mach-Zehnder Interferometer Via Photon Recycling, Dong Li, Chun Hua Yuan, Xiaoping Ma, Qingle Wang, Hwang Lee, Yao Yao, Weiping Zhang

Faculty Publications

We propose an alternative scheme for phase estimation in a Mach-Zehnder interferometer (MZI) with photon recycling. It is demonstrated that with the same coherent-state input and homodyne detection, our proposal possesses a phase sensitivity beyond the traditional MZI. For instance, it can achieve an enhancement factor of ∼9.32 in the phase sensitivity compared with the conventional scheme even with a photon loss of 10% on the photon-recycled arm. From another point of view, the quantum Cramér-Rao bound (QCRB) is also investigated. It is found that our scheme is able to achieve a lower QCRB than the traditional one. Intriguingly, the …

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Atomistic Simulation Studies Of Thin Film Growth And Plastic Deformation In Metals And Metal/Ceramic Nanostructures, Reza Namakian Feb 2023

Atomistic Simulation Studies Of Thin Film Growth And Plastic Deformation In Metals And Metal/Ceramic Nanostructures, Reza Namakian

LSU Doctoral Dissertations

Despite the significant improvements in manufacturing and synthesis processes of metals and ceramics in the past decades, there are still areas in which the procedure is still frequently more of an art or skill rather than a science. Therefore, systematic and combined experimental and computational studies are required to facilitate the development of techniques that offer thorough understanding of the events taking place during manufacturing and synthesis processes. With regard to these issues, it is paramount to address microscale characterizations and atomic scale understanding of the events during fabrication processes. One of the focuses of this study is unraveling fundamental …

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Gamerfit-Asd Beta Test: Adapting An Evidence-Based Exergaming And Telehealth Coaching Intervention For Autistic Youth, Daniel P. Hatfield, Aviva Must, Winston Kennedy, Amanda E. Staiano, James Slavet, Rachael A. Sabelli, Carol Curtin, Linda G. Bandini, Phillip Nauta, Christopher Stuetzle, April B. Bowling Feb 2023

Gamerfit-Asd Beta Test: Adapting An Evidence-Based Exergaming And Telehealth Coaching Intervention For Autistic Youth, Daniel P. Hatfield, Aviva Must, Winston Kennedy, Amanda E. Staiano, James Slavet, Rachael A. Sabelli, Carol Curtin, Linda G. Bandini, Phillip Nauta, Christopher Stuetzle, April B. Bowling

Population and Public Health Science Faculty Publications

Background: Health disparities faced by autistic youth are exacerbated by inadequate physical activity (PA) and sleep, whereas healthy PA and sleep may improve mood and function. Adaptive Game Squad (AGS) is an evidence-based telehealth coaching and exergaming intervention to improve PA and sleep for adolescents with diverse neurodevelopmental and psychiatric conditions. This study aimed to adapt AGS for autistic youth ages 10–15 years; beta-test the modified intervention for feasibility, accessibility, and engagement; and further refine the intervention for a larger planned demonstration pilot. Methods: Interdisciplinary experts adapted AGS to create GamerFit-ASD, a 12-week intervention that included a progressive exergame schedule, …

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A Comprehensive Framework For The Use Of Sugarcane Bagasse Ash As Cement And Sand Replacement In Concrete Materials, Sujata Subedi Feb 2023

A Comprehensive Framework For The Use Of Sugarcane Bagasse Ash As Cement And Sand Replacement In Concrete Materials, Sujata Subedi

LSU Doctoral Dissertations

Sugarcane bagasse ash (BA), an agricultural byproduct, has been suggested as a sustainable material to partially replace cement and sand in traditional concrete. However, the feasibility of using BA in novel concrete materials, such as engineered cementitious composites (ECC) and fiber-reinforced geopolymer composites (FRGC), has not been investigated. Therefore, the objectives of this study are to: (a) characterize the properties of Louisiana BA produced from different methodologies; (b) quantify the influence of BA as supplementary cementitious material (SCM) on concrete properties; (c) assess the feasibility of developing normal- and high-strength ECCs using BA as SCM and fine aggregate, and (d) …

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Temperature Dependent Stacking Fault Free Energy Profiles And Partial Dislocation Separation In Fcc Cu, Reza Namakian, Dorel Moldovan, Thomas D. Swinburne Feb 2023

Temperature Dependent Stacking Fault Free Energy Profiles And Partial Dislocation Separation In Fcc Cu, Reza Namakian, Dorel Moldovan, Thomas D. Swinburne

Faculty Publications

The generalized stacking fault energy profile is fundamental to models of metal plasticity and thus a key parameter for alloy design. However, to account for thermal vibrations, models require the stacking fault free energy profile, but current methods can only calculate metastable intrinsic stacking faults. We show how the full stacking fault free energy profile can be calculated using PAFI, a linear scaling method that fully accounts for anharmonic thermal vibrations. Applying our approach to empirical and machine learning potentials for FCC Cu, we show via direct comparison with molecular dynamics simulations that accounting for temperature effects is essential to …

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Assessing Impacts Of Climate Change On Selected Foundation Species And Ecosystem Services In The South-Central Usa, R. James Ansley, Victor H. Rivera-Monroy, Kerry Griffis-Kyle, Bruce Hoagland, Amanda Emert, Todd Fagin, Scott R. Loss, Heather R. Mccarthy, Nicholas G. Smith, Elizabeth F. Waring Feb 2023

Assessing Impacts Of Climate Change On Selected Foundation Species And Ecosystem Services In The South-Central Usa, R. James Ansley, Victor H. Rivera-Monroy, Kerry Griffis-Kyle, Bruce Hoagland, Amanda Emert, Todd Fagin, Scott R. Loss, Heather R. Mccarthy, Nicholas G. Smith, Elizabeth F. Waring

Faculty Publications

Climate change, interacting with and exacerbating anthropogenic modifications to the landscape, is altering ecosystem structure and function, biodiversity, and species distributions. Among the most visible short-term impacts are the altered ecological roles of foundation species—those species, native or non-native—that create locally stable environmental conditions and strongly influence ecosystem services. Understanding the future of these species is crucial for projecting impacts on ecosystem services at both local and regional scales. Here we present foundation species by ecoregion study cases across the US South-Central Region (Louisiana, New Mexico, Oklahoma, and Texas), including C4 grasses, mesquite, and northern bobwhite in the Southern Great …

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Well Placement Optimization Through The Triple-Completion Gas And Downhole Water Sink-Assisted Gravity Drainage (Tc-Gdws-Agd) Eor Process, Watheq J. Al-Mudhafar, David A. Wood, Dahlia A. Al-Obaidi, Andrew K. Wojtanowicz Feb 2023

Well Placement Optimization Through The Triple-Completion Gas And Downhole Water Sink-Assisted Gravity Drainage (Tc-Gdws-Agd) Eor Process, Watheq J. Al-Mudhafar, David A. Wood, Dahlia A. Al-Obaidi, Andrew K. Wojtanowicz

Faculty Publications

Gas and downhole water sink-assisted gravity drainage (GDWS-AGD) is a new process of enhanced oil recovery (EOR) in oil reservoirs underlain by large bottom aquifers. The process is capital intensive as it requires the construction of dual-completed wells for oil production and water drainage and additional multiple vertical gas-injection wells. The costs could be substantially reduced by eliminating the gas-injection wells and using triple-completed multi-functional wells. These wells are dubbed triple-completion-GDWS-AGD (TC-GDWS-AGD). In this work, we design and optimize the TC-GDWS-AGD oil recovery process in a fictitious oil reservoir (Punq-S3) that emulates a real North Sea oil field. The design …

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Opioid And Cannabis Co-Use: The Role Of Opioid Use To Cope With Negative Affect, Julia D. Buckner, Caroline R. Scherzer, Andrew H. Rogers, Michael J. Zvolensky Feb 2023

Opioid And Cannabis Co-Use: The Role Of Opioid Use To Cope With Negative Affect, Julia D. Buckner, Caroline R. Scherzer, Andrew H. Rogers, Michael J. Zvolensky

Faculty Publications

Introduction: The opioid epidemic is a significant public health concern, particularly among adults with chronic pain. There are high rates of cannabis co-use among these individuals and co-use is related to worse opioid-related outcomes. Yet, little work has examined mechanisms underlying this relationship. In line with affective processing models of substance use, it is possible that those who use multiple substances do so in a maladaptive attempt to cope with psychological distress. Method: We tested whether, among adults with chronic lower back pain (CLBP), the relation between co-use and more severe opioid-related problems would occur via the serial effects of …

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Effects Of Covid-19 On Sensory And Cognitive Perception Of Mild And Severe Diagnosed And Recovered Patients Versus Healthy Consumers, Adan Cabal-Prieto, Lucía Sánchez-Arellano, José Andrés Herrera-Corredor, Jesús Rodríguez-Miranda, Witoon Prinyawiwatkul, Lorena Guadalupe Ramón-Canul, Filiberto Toledano-Toledano, Ingrid Mayanin Rodríguez-Buenfil, Manuel Octavio Ramírez-Sucre, Gregorio Hernández-Salinas, Emmanuel De Jesús De Ramírez-Rivera Feb 2023

Effects Of Covid-19 On Sensory And Cognitive Perception Of Mild And Severe Diagnosed And Recovered Patients Versus Healthy Consumers, Adan Cabal-Prieto, Lucía Sánchez-Arellano, José Andrés Herrera-Corredor, Jesús Rodríguez-Miranda, Witoon Prinyawiwatkul, Lorena Guadalupe Ramón-Canul, Filiberto Toledano-Toledano, Ingrid Mayanin Rodríguez-Buenfil, Manuel Octavio Ramírez-Sucre, Gregorio Hernández-Salinas, Emmanuel De Jesús De Ramírez-Rivera

Faculty Publications

The objective of this research was to analyze the effects of the SARS-CoV-2 virus on the sensory and cognitive perception of mild and severe COVID-19 diagnosed and recovered consumers versus healthy consumers. Three groups of 50 consumers each (healthy vs. mild and severe COVID-19 diagnosed with 30 days after recovery) were used for the evaluation of instant coffee stimuli in concentrations: 4.40, 2.93, 2.20, 1.76, and 1.47% weight (w)/volume (v) and determine their discriminating power, emotions, and memories. Sensory tests were performed remotely. Results indicated that healthy consumers perceived higher intensities in most of the sensory attributes (with the exception …

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Neutron Detection And Application With A Novel 3d-Projection Scintillator Tracker In The Future Long-Baseline Neutrino Oscillation Experiments, S. Gwon, P. Granger, G. Yang, S. Bolognesi, T. Cai, M. Danilov, A. Delbart, A. De Roeck, S. Dolan, G. Eurin, R. F. Razakamiandra, S. Fedotov, G. Fiorentini Aguirre, R. Flight, R. Gran, C. Ha, C. K. Jung, K. Y. Jung, S. Kettell, M. Khabibullin, A. Khotjantsev, M. Kordosky, Y. Kudenko, T. Kutter, J. Maneira, S. Manly, D. A. Martinez Caicedo, C. Mauger, K. Mcfarland, C. Mcgrew, A. Mefodev, O. Mineev, D. Naples Feb 2023

Neutron Detection And Application With A Novel 3d-Projection Scintillator Tracker In The Future Long-Baseline Neutrino Oscillation Experiments, S. Gwon, P. Granger, G. Yang, S. Bolognesi, T. Cai, M. Danilov, A. Delbart, A. De Roeck, S. Dolan, G. Eurin, R. F. Razakamiandra, S. Fedotov, G. Fiorentini Aguirre, R. Flight, R. Gran, C. Ha, C. K. Jung, K. Y. Jung, S. Kettell, M. Khabibullin, A. Khotjantsev, M. Kordosky, Y. Kudenko, T. Kutter, J. Maneira, S. Manly, D. A. Martinez Caicedo, C. Mauger, K. Mcfarland, C. Mcgrew, A. Mefodev, O. Mineev, D. Naples

Faculty Publications

Neutrino oscillation experiments require a precise measurement of the neutrino energy. However, the kinematic detection of the final-state neutron in the neutrino interaction is missing in current neutrino oscillation experiments. The missing neutron kinematic detection results in a smaller detected neutrino energy than the true neutrino energy. A novel 3D-projection scintillator tracker, which consists of roughly ten million active cubes covered with an optical reflector, is capable of measuring the neutron kinetic energy and direction on an event-by-event basis using the time-of-flight technique thanks to the fast timing, fine granularity, and high light yield. The ν¯μ interactions tend to produce …

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Inactivation Of The Ul37 Deamidase Enhances Virus Replication And Spread Of The Hsv-1(Vc2) Oncolytic Vaccine Strain And Secretion Of Gm-Csf, Carolyn M. Clark, Nithya Jambunathan, Therese M.A. Collantes, Konstantin G. Kousoulas Feb 2023

Inactivation Of The Ul37 Deamidase Enhances Virus Replication And Spread Of The Hsv-1(Vc2) Oncolytic Vaccine Strain And Secretion Of Gm-Csf, Carolyn M. Clark, Nithya Jambunathan, Therese M.A. Collantes, Konstantin G. Kousoulas

Faculty Publications

The HSV-1 (VC2) live-attenuated vaccine strain was engineered with specific deletions in the amino termini of glycoprotein K (gK) and membrane protein UL20, rendering the virus unable to enter neurons and establish latency. VC2 replicates efficiently in epithelial cell culture but produces lower viral titers and smaller viral plaques than its parental HSV-1 (F) wild-type virus. VC2 is an effective live-attenuated vaccine against HSV-1 and HSV-2 infections in mice and guinea pigs and an anti-tumor immunotherapeutic and oncolytic virus against melanoma and breast cancer in mouse models. Previously, we reported that the gK/UL20 complex interacts with the UL37 tegument protein, …

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Neutron Imaging Of Al6061 Prepared By Solid-State Friction Stir Additive Manufacturing, Saber Nemati, Leslie G. Butler, Kyungmin Ham, Gerald L. Knapp, Congyuan Zeng, Selami Emanet, Hamed Ghadimi, Shengmin Guo, Yuxuan Zhang, Hassina Bilheux Feb 2023

Neutron Imaging Of Al6061 Prepared By Solid-State Friction Stir Additive Manufacturing, Saber Nemati, Leslie G. Butler, Kyungmin Ham, Gerald L. Knapp, Congyuan Zeng, Selami Emanet, Hamed Ghadimi, Shengmin Guo, Yuxuan Zhang, Hassina Bilheux

Faculty Publications

Solid-state Friction Stir Additive Manufacturing has recently gained attention as a result of its capacity to fabricate large-scale parts while preserving the mechanical properties of the feedstock material. However, the correlation between the quality of layer-by-layer bonding of the deposited metal and processing parameters has remained unknown. Neutron imaging techniques, with 90% total transmission per cm, are employed for Al6061 parts fabricated by MELD® Technology as a non-destructive evaluation approach for the first time to investigate the layer-by-layer structure of a stadium-shaped ingot in different sections. The post-processed results show the fabricated parts with an optimized set of processing parameters …

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Hardness Distribution Of Al2050 Parts Fabricated Using Additive Friction Stir Deposition, Hamed Ghadimi, Huan Ding, Selami Emanet, Mojtaba Talachian, Chase Cox, Michael Eller, Shengmin Guo Feb 2023

Hardness Distribution Of Al2050 Parts Fabricated Using Additive Friction Stir Deposition, Hamed Ghadimi, Huan Ding, Selami Emanet, Mojtaba Talachian, Chase Cox, Michael Eller, Shengmin Guo

Faculty Publications

The solid-state additive friction stir deposition (AFSD) process is a layer-by-layer metal 3D-printing technology. In this study, AFSD is used to fabricate Al–Cu–Li 2050 alloy parts. The hardness values for various regions of the as-deposited built parts are measured, and the results are contrasted with those of the feedstock material. The as-fabricated Al2050 parts are found to have a unique hardness distribution due to the location-specific variations in the processing temperature profile. The XRD results indicate the presence of the secondary phases in the deposited parts, and EDS mapping confirms the formation of detectable alloying particles in the as-deposited Al2050 …

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