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Measurement Of The Π- -Ar Total Hadronic Cross Section At The Lariat Experiment, E. Gramellini, J. Ho, R. Acciarri, C. Adams, J. Asaadi, M. Backfish, W. Badgett, B. Baller, V. Basque, O. Benevides Rodrigues, F. D.M. Blaszczyk, R. Bouabid, C. Bromberg, R. Carey, R. Castillo Fernandez, F. Cavanna, J. I. Cevallos Aleman, A. Chatterjee, P. Dedin, M. V. Dos Santos, D. Edmunds, C. Escobar, J. Esquivel, J. J. Evans, A. Falcone, W. Flanagan, B. T. Fleming, W. Foreman, D. Garcia-Gamez, D. Gastler, T. Ghosh, R. A. Gomes, R. Gran Sep 2022

Measurement Of The Π- -Ar Total Hadronic Cross Section At The Lariat Experiment, E. Gramellini, J. Ho, R. Acciarri, C. Adams, J. Asaadi, M. Backfish, W. Badgett, B. Baller, V. Basque, O. Benevides Rodrigues, F. D.M. Blaszczyk, R. Bouabid, C. Bromberg, R. Carey, R. Castillo Fernandez, F. Cavanna, J. I. Cevallos Aleman, A. Chatterjee, P. Dedin, M. V. Dos Santos, D. Edmunds, C. Escobar, J. Esquivel, J. J. Evans, A. Falcone, W. Flanagan, B. T. Fleming, W. Foreman, D. Garcia-Gamez, D. Gastler, T. Ghosh, R. A. Gomes, R. Gran

Faculty Publications

We present the first measurement of the negative pion total hadronic cross section on argon in a restricted phase space, which we performed at the Liquid Argon In A Testbeam (LArIAT) experiment. All hadronic reaction channels, as well as hadronic elastic interactions with scattering angle greater than 5° are included. The pions have kinetic energies in the range 100-700 MeV and are produced by a beam of charged particles impinging on a solid target at the Fermilab test beam facility. LArIAT employs a 0.24 ton active mass liquid argon time projection chamber (LArTPC) to measure the pion hadronic interactions. For …

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Bloch Waves In High Contrast Electromagnetic Crystals, Robert Lipton, Robert Viator, Silvia Jiménez Bolanõs, Abiti Adili Sep 2022

Bloch Waves In High Contrast Electromagnetic Crystals, Robert Lipton, Robert Viator, Silvia Jiménez Bolanõs, Abiti Adili

Faculty Publications

Analytic representation formulas and power series are developed describing the band structure inside non-magnetic periodic photonic three-dimensional crystals made from high dielectric contrast inclusions. Central to this approach is the identification and utilization of a resonance spectrum for quasiperiodic source-free modes. These modes are used to represent solution operators associated with electromagnetic and acoustic waves inside periodic high contrast media. A convergent power series for the Bloch wave spectrum is recovered from the representation formulas. Explicit conditions on the contrast are found that provide lower bounds on the convergence radius. These conditions are sufficient for the separation of spectral branches …

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Early To Middle Miocene Ice Sheet Dynamics In The Westernmost Ross Sea (Antarctica): Regional Correlations, Lara F. Pérez, Robert M. Mckay, Laura De Santis, Robert D. Larter, Richard H. Levy, Timothy R. Naish, John B. Anderson, Philip J. Bart, Martina Busetti, Gavin Dunbar, Chiara Sauli, Christopher C. Sorlien, Marvin Speece Sep 2022

Early To Middle Miocene Ice Sheet Dynamics In The Westernmost Ross Sea (Antarctica): Regional Correlations, Lara F. Pérez, Robert M. Mckay, Laura De Santis, Robert D. Larter, Richard H. Levy, Timothy R. Naish, John B. Anderson, Philip J. Bart, Martina Busetti, Gavin Dunbar, Chiara Sauli, Christopher C. Sorlien, Marvin Speece

Faculty Publications

The present-day morpho-stratigraphy of the Ross Sea is the result of Cenozoic tectonic and cryospheric events, and constitutes a key record of Antarctica's cryospheric evolution. An enduring problem in interpreting this record in a broader regional context is that the correlation between eastern and western Ross Sea stratigraphy has remained uncertain due to the limited number of drill sites. We correlate the glacial-related features observed on a dense network of seismic reflection profiles in McMurdo Sound with those identified in the Nordenskjöld and Drygalski Basins, as well as the basins farther east in the central Ross Sea. We present an …

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Does Inflation Squeeze Cosmological Perturbations?, Ivan Agullo, Béatrice Bonga, Patricia Ribes Metidieri Sep 2022

Does Inflation Squeeze Cosmological Perturbations?, Ivan Agullo, Béatrice Bonga, Patricia Ribes Metidieri

Faculty Publications

There seems to exist agreement about the fact that inflation squeezes the quantum state of cosmological perturbations and entangles modes with wavenumbers k⟶ and -k⟶. Paradoxically, this result has been used to justify both the classicality as well as the quantumness of the primordial perturbations at the end of inflation. We reexamine this question and point out that the definition of two-mode squeezing of the modes k⟶ and -k⟶ used in previous work rests on choices that are only justified for systems with time-independent Hamiltonians and finitely many degrees of freedom. We argue that for quantum fields propagating on generic …

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A Detailed Analysis Of The Gl 486 Planetary System, J. A. Caballero, E. González-Álvarez, M. Brady, T. Trifonov, T. G. Ellis, C. Dorn, C. Cifuentes, K. Molaverdikhani, J. L. Bean, T. Boyajian, E. Rodríguez, J. Sanz-Forcada, M. R. Zapatero Osorio, C. Abia, P. J. Amado, N. Anugu, V. J.S. Béjar, C. L. Davies, S. Dreizler, F. Dubois, J. Ennis, N. Espinoza, C. D. Farrington, A. García López, T. Gardner, A. P. Hatzes, Th Henning, E. Herrero, E. Herrero-Cisneros, A. Kaminski, D. Kasper, R. Klement, S. Kraus Sep 2022

A Detailed Analysis Of The Gl 486 Planetary System, J. A. Caballero, E. González-Álvarez, M. Brady, T. Trifonov, T. G. Ellis, C. Dorn, C. Cifuentes, K. Molaverdikhani, J. L. Bean, T. Boyajian, E. Rodríguez, J. Sanz-Forcada, M. R. Zapatero Osorio, C. Abia, P. J. Amado, N. Anugu, V. J.S. Béjar, C. L. Davies, S. Dreizler, F. Dubois, J. Ennis, N. Espinoza, C. D. Farrington, A. García López, T. Gardner, A. P. Hatzes, Th Henning, E. Herrero, E. Herrero-Cisneros, A. Kaminski, D. Kasper, R. Klement, S. Kraus

Faculty Publications

Context. The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 RO and 3.0 MO. It is ideal for both transmission and emission spectroscopy and for testing interior models of telluric planets. Aims. To prepare for future studies, we aim to thoroughly characterise the planetary system with new accurate and precise data collected with state-of-the-art photometers from space and spectrometers and interferometers from the ground. Methods. We collected light curves of seven new transits observed with the CHEOPS space mission and …

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Higher-Rank Radon Transforms On Constant Curvature Spaces, B. Rubin Sep 2022

Higher-Rank Radon Transforms On Constant Curvature Spaces, B. Rubin

Faculty Publications

We study higher-rank Radon transforms of the form f(τ) → ∫ τ⊂ζf(τ) , where τ is a j-dimensional totally geodesic submanifold in the n-dimensional real constant curvature space and ζ is a similar submanifold of dimension k> j. The corresponding dual transforms are also considered. The transforms are explored in the Euclidean case (affine Grassmannian bundles), the elliptic case (compact Grassmannians), and the hyperbolic case (the hyperboloid model, the Beltrami-Klein model, and the projective model). The main objectives are sharp conditions for the existence and injectivity of the Radon transforms in Lebesgue spaces, transition from one model to another, support …

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High-Dimensional Encryption In Optical Fibers Using Spatial Modes Of Light And Machine Learning, Michelle L.J. Lollie, Fatemeh Mostafavi, Narayan Bhusal, Mingyuan Hong, Chenglong You, Roberto De J. León-Montiel, Omar S. Magaña-Loaiza, Mario A. Quiroz-Juárez Sep 2022

High-Dimensional Encryption In Optical Fibers Using Spatial Modes Of Light And Machine Learning, Michelle L.J. Lollie, Fatemeh Mostafavi, Narayan Bhusal, Mingyuan Hong, Chenglong You, Roberto De J. León-Montiel, Omar S. Magaña-Loaiza, Mario A. Quiroz-Juárez

Faculty Publications

The ability to engineer the spatial wavefunction of photons has enabled a variety of quantum protocols for communication, sensing, and information processing. These protocols exploit the high dimensionality of structured light enabling the encoding of multiple bits of information in a single photon, the measurement of small physical parameters, and the achievement of unprecedented levels of security in schemes for cryptography. Unfortunately, the potential of structured light has been restrained to free-space platforms in which the spatial profile of photons is preserved. Here, we make an important step forward to using structured light for fiber optical communication. We introduce a …

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Neural Network Solver For Small Quantum Clusters, Nicholas Walker, Samuel Kellar, Yi Zhang, Ka Ming Tam, Juana Moreno Sep 2022

Neural Network Solver For Small Quantum Clusters, Nicholas Walker, Samuel Kellar, Yi Zhang, Ka Ming Tam, Juana Moreno

Faculty Publications

Machine learning approaches have recently been applied to the study of various problems in physics. Most of these studies are focused on interpreting the data generated by conventional numerical methods or the data on an existing experimental database. An interesting question is whether it is possible to use a machine learning approach, in particular a neural network, for solving the many-body problem. In this paper, we present a neural network solver for the single impurity Anderson model, the paradigm of an interacting quantum problem in small clusters. We demonstrate that the neural-network-based solver provides quantitative accurate results for the spectral …

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Estimating R0 From Early Exponential Growth: Parallels Between 1918 Influenza And 2020 Sars-Cov-2 Pandemics, Grant Foster, Bret D. Elderd, Robert L. Richards, Tad Dallas Sep 2022

Estimating R0 From Early Exponential Growth: Parallels Between 1918 Influenza And 2020 Sars-Cov-2 Pandemics, Grant Foster, Bret D. Elderd, Robert L. Richards, Tad Dallas

Faculty Publications

The large spatial scale, geographical overlap, and similarities in transmission mode between the 1918 H1N1 influenza and 2020 SARS-CoV-2 pandemics together provide a novel opportunity to investigate relationships between transmission of two different diseases in the same location. To this end, we use initial exponential growth rates in a Bayesian hierarchical framework to estimate the basic reproductive number, R0, of both disease outbreaks in a common set of 43 cities in the United States. By leveraging multiple epidemic time series across a large spatial area, we are able to better characterize the variation in R0 across the United States. Additionally, …

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Right-Angled Artin Subgroups Of Artin Groups, Kasia Jankiewicz, Kevin Schreve Sep 2022

Right-Angled Artin Subgroups Of Artin Groups, Kasia Jankiewicz, Kevin Schreve

Faculty Publications

The Tits Conjecture, proved by Crisp and Paris, states that squares of the standard generators of any Artin group generate an obvious right-angled Artin subgroup. We consider a larger set of elements consisting of all the centers of the irreducible spherical special subgroups of the Artin group, and conjecture that sufficiently large powers of those elements generate an obvious right-angled Artin subgroup. This alleged right-angled Artin subgroup is in some sense as large as possible; its nerve is homeomorphic to the nerve of the ambient Artin group. We verify this conjecture for the class of locally reducible Artin groups, which …

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A New Soft Red Winter Wheat Cultivar ‘Ga 08535-15le29’ Adapted To Georgia And The U.S. Southeast Region, Mohamed Mergoum, Jerry Johnson, James Buck, G. David Buntin, Steve Sutton, Benjamin Lopez, Daniel Mailhot, Zhenbang Chen, Dan Bland, Stephen Harrison, Joseph Paul Murphy, Esten Mason, Russell Lane Sutton, Ali Babar, Gina Brown-Guedira, Amir Ibrahim, Richard E. Boyles, Byung Kee Baik, David Marshall, Carl Allen Griffey, Sue Ellen Cambron, Xianming Chen, Christina Cowger Sep 2022

A New Soft Red Winter Wheat Cultivar ‘Ga 08535-15le29’ Adapted To Georgia And The U.S. Southeast Region, Mohamed Mergoum, Jerry Johnson, James Buck, G. David Buntin, Steve Sutton, Benjamin Lopez, Daniel Mailhot, Zhenbang Chen, Dan Bland, Stephen Harrison, Joseph Paul Murphy, Esten Mason, Russell Lane Sutton, Ali Babar, Gina Brown-Guedira, Amir Ibrahim, Richard E. Boyles, Byung Kee Baik, David Marshall, Carl Allen Griffey, Sue Ellen Cambron, Xianming Chen, Christina Cowger

Faculty Publications

Soft red winter wheat (SRWW) (Triticum aestivum L.) production in the southeastern United States is affected by biotic and abiotic stresses that can result in yield losses and reduced acreage. Developing new cultivars with high yield, good resistance to predominant pests, and acceptable quality to maximize value in regional markets is needed. The University of Georgia (UGA) SRWW breeding program, in collaboration with institutions in the region including the Southern UNiversities GRAINS (SUNGRAINS) programs, is responding to these challenges by developing and releasing superior cultivars adapted to the region. ‘GA 08535-15LE29’ (Reg. no. CV-1191, PI 693269) SRWW cultivar was developed …

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Development And Validation Of An Optimized Marker Set For Genomic Selection In Southern U.S. Rice Breeding Programs, Tommaso Cerioli, Christopher O. Hernandez, Brijesh Angira, Susan R. Mccouch, Kelly R. Robbins, Adam N. Famoso Sep 2022

Development And Validation Of An Optimized Marker Set For Genomic Selection In Southern U.S. Rice Breeding Programs, Tommaso Cerioli, Christopher O. Hernandez, Brijesh Angira, Susan R. Mccouch, Kelly R. Robbins, Adam N. Famoso

Faculty Publications

The potential of genomic selection (GS) to increase the efficiency of breeding programs has been clearly demonstrated; however, the implementation of GS in rice (Oryza sativa L.) breeding programs has been limited. In recent years, efforts have begun to work toward implementing GS into the Louisiana State University (LSU) Agricultural Center rice breeding program. One of the first steps for successful GS implementation is to establish a suitable marker set for the target germplasm and a reliable, cost-effective genotyping platform capable of providing informative marker data with an adequate turnaround time. The objective of this study was to develop a …

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The Martian Boulder Automatic Recognition System, Mbars, Don R. Hood, S. F. Sholes, S. Karunatillake, C. I. Fassett, R. C. Ewing, J. Levy Sep 2022

The Martian Boulder Automatic Recognition System, Mbars, Don R. Hood, S. F. Sholes, S. Karunatillake, C. I. Fassett, R. C. Ewing, J. Levy

Faculty Publications

Boulder-sized clasts are common on the surface of Mars, and many are sufficiently large to be resolved by the high resolution imaging science experiment (HiRISE) camera aboard the Mars reconnaissance orbiter. The size, number, and location of boulders on the surface and their spatial distribution can reveal the processes that have operated on the surface, including boulder erosion, burial, impact excavation, and other mechanisms of boulder transport and generation. However, quantitative analysis of statistically significant boulder populations, which could inform these processes, entails prohibitively laborious manual segmentation, granulometry, and morphometry measurements over large areas. Here, we develop, describe, and validate …

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Revisiting Institutional Voids: Advancing The International Business Literature By Leveraging Social Sciences, Marleen Dieleman, Stanislav Markus, Tazeeb Rajwani, George O. White Iii Sep 2022

Revisiting Institutional Voids: Advancing The International Business Literature By Leveraging Social Sciences, Marleen Dieleman, Stanislav Markus, Tazeeb Rajwani, George O. White Iii

Faculty Publications

Institutions are vital for solving collective action problems and enabling functioning markets. Based on this notion, the institutional voids literature has offered a dynamic research agenda for international business scholarship. In this perspective article, we leverage work from political science, development economics, legal studies, and anthropology to: (a) expose hidden assumptions about institutional voids in the management literature; (b) propose new directions for research based on our revised assumptions; and (c) provide direction-specific theoretical constructs from other social sciences to stimulate theory-building and empirical inquiry into institutional voids. We develop a framework that identifies four revised assumptions about institutional voids …

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Validity Of An Abbreviated Individual Water Insecurity Experiences (Iwise-4) Scale For Measuring The Prevalence Of Water Insecurity In Low- And Middle-Income Countries, Hilary J. Bethanancourt, Edward A. Frongillo Jr. Ph.D., Sera L. Young Sep 2022

Validity Of An Abbreviated Individual Water Insecurity Experiences (Iwise-4) Scale For Measuring The Prevalence Of Water Insecurity In Low- And Middle-Income Countries, Hilary J. Bethanancourt, Edward A. Frongillo Jr. Ph.D., Sera L. Young

Faculty Publications

The 12-item Water Insecurity Experiences Scales provide high resolution, cross-context equivalent data on household and individual water insecurity. A 4-item, 1-minute version of the Household Water Insecurity Experiences (HWISE-4) Scale has proven useful for understanding the prevalence of household water insecurity experiences when limited resources preclude the use of the HWISE-12 Scale. Herein, we tested the validity of an analogous four-item version of the Individual Water Insecurity Experiences Scale (IWISE-4) for measuring the prevalence of individual water insecurity when limited resources prevent implementation of the IWISE-12 Scale. We used data from adults in 31 low- and middle-income countries (n …

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Estimating R0 From Early Exponential Growth: Parallels Between 1918 Influenza And 2020 Sars-Cov-2 Pandemics, Grant Foster, Bret D. Elderd, Robert L. Richards, Tad Dallas Sep 2022

Estimating R0 From Early Exponential Growth: Parallels Between 1918 Influenza And 2020 Sars-Cov-2 Pandemics, Grant Foster, Bret D. Elderd, Robert L. Richards, Tad Dallas

Faculty Publications

The large spatial scale, geographical overlap, and similarities in transmission mode between the 1918 H1N1 influenza and 2020 SARS-CoV-2 pandemics together provide a novel opportunity to investigate relationships between transmission of two different diseases in the same location. To this end, we use initial exponential growth rates in a Bayesian hierarchical framework to estimate the basic reproductive number, R0, of both disease outbreaks in a common set of 43 cities in the United States. By leveraging multiple epidemic time series across a large spatial area, we are able to better characterize the variation in R0 across the …

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Sensitivity Analysis, Uncertainty Quantification And Predictive Modeling Of Nuclear Energy Systems, Dan Gabriel Cacuci Sep 2022

Sensitivity Analysis, Uncertainty Quantification And Predictive Modeling Of Nuclear Energy Systems, Dan Gabriel Cacuci

Faculty Publications

No abstract provided.

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Rates Of Future Climate Change In The Gulf Of Mexico And The Caribbean Sea: Implications For Coral Reef Ecosystems, A. E. Lawman, S. G. Dee, K. L. Delong, A. M.S. Correa Sep 2022

Rates Of Future Climate Change In The Gulf Of Mexico And The Caribbean Sea: Implications For Coral Reef Ecosystems, A. E. Lawman, S. G. Dee, K. L. Delong, A. M.S. Correa

Faculty Publications

Rising temperatures and ocean acidification due to anthropogenic climate change pose ominous threats to coral reef ecosystems in the Gulf of Mexico (GoM) and the western Caribbean Sea. Unfortunately, the once structurally complex coral reefs in the GoM and Caribbean have dramatically declined since the 1970s; relatively few coral reefs still exhibit a mean live coral cover of >10%. Additional work is needed to characterize future climate stressors on coral reefs in the GoM and the Caribbean Sea. Here, we use climate model simulations spanning the period of 2015–2100 to partition and assess the individual impacts of climate stressors on …

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Rural-Urban Differences In Breast Cancer Surgical Delays In Medicare Beneficiaries, Ronnie J. Zipkin, Andrew Schaefer, Changzhen Wang, Andrew P. Loehrer, Nirav S. Kapadia, Gabriel A. Brooks, Tracy Onega, Fahui Wang, Alistair J. O’Malley, Erika L. Moen Sep 2022

Rural-Urban Differences In Breast Cancer Surgical Delays In Medicare Beneficiaries, Ronnie J. Zipkin, Andrew Schaefer, Changzhen Wang, Andrew P. Loehrer, Nirav S. Kapadia, Gabriel A. Brooks, Tracy Onega, Fahui Wang, Alistair J. O’Malley, Erika L. Moen

Faculty Publications

Background: Delays between breast cancer diagnosis and surgery are associated with worsened survival. Delays are more common in urban-residing patients, although factors specific to surgical delays among rural and urban patients are not well understood. Methods: We used a 100% sample of fee-for-service Medicare claims during 2007–2014 to identify 238,491 women diagnosed with early-stage breast cancer undergoing initial surgery and assessed whether they experienced biopsy-to-surgery intervals > 90 days. We employed multilevel regression to identify associations between delays and patient, regional, and surgeon characteristics, both in combined analyses and stratified by rurality of patient residence. Results: Delays were more prevalent among …

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Common Correlated Effects Estimation For Dynamic Heterogeneous Panels With Non-Stationary Multi-Factor Error Structures, Shiyun Cao, Qiankun Zhou Sep 2022

Common Correlated Effects Estimation For Dynamic Heterogeneous Panels With Non-Stationary Multi-Factor Error Structures, Shiyun Cao, Qiankun Zhou

Faculty Publications

In this paper, we consider the estimation of a dynamic panel data model with non-stationary multi-factor error structures. We adopted the common correlated effect (CCE) estimation and established the asymptotic properties of the CCE and common correlated effects mean group (CCEMG) estimators, as N and T tend to infinity. The results show that both the CCE and CCEMG estimators are consistent and the CCEMG estimator is asymptotically normally distributed. The theoretical findings were supported for small samples by an extensive simulation study, showing that the CCE estimators are robust to a wide variety of data generation processes. Empirical findings suggest …

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Revisiting Institutional Voids: Advancing The International Business Literature By Leveraging Social Sciences, Marleen Dieleman, Stanislav Markus, Tazeeb Rajwani, George White Iii Sep 2022

Revisiting Institutional Voids: Advancing The International Business Literature By Leveraging Social Sciences, Marleen Dieleman, Stanislav Markus, Tazeeb Rajwani, George White Iii

Faculty Publications

Institutions are vital for solving collective action problems and enabling functioning markets. Based on this notion, the institutional voids literature has offered a dynamic research agenda for international business scholarship. In this perspective article, we leverage work from political science, development economics, legal studies, and anthropology to: (a) expose hidden assumptions about institutional voids in the management literature; (b) propose new directions for research based on our revised assumptions; and (c) provide direction-specific theoretical constructs from other social sciences to stimulate theory-building and empirical inquiry into institutional voids. We develop a framework that identifies four revised assumptions about institutional voids …

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The Role Of A Green Bank In South Carolina: A Market & Feasibility Assessment, Jory Fleming, Claire Windsor Sep 2022

The Role Of A Green Bank In South Carolina: A Market & Feasibility Assessment, Jory Fleming, Claire Windsor

Faculty Publications

A market and feasibility report that explores the role of a green bank in South Carolina. This report is the culmination of a multi-year process that included a comprehensive market assessment and interviews with over 60 organizations across South Carolina. It demonstrates that a green bank could play a vital role in South Carolina by creating a dedicated institution working to accelerate the flow of capital to projects that seek to reduce carbon pollution and increase resilience to climate impacts.

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Cenozoic Antarctic Peninsula Temperatures And Glacial Erosion Signals From A Multi-Proxy Biomarker Study, Emily J. Tibbett, Sophie Warny, Jessica E. Tierney, Julia S. Wellner, Sarah J. Feakins Sep 2022

Cenozoic Antarctic Peninsula Temperatures And Glacial Erosion Signals From A Multi-Proxy Biomarker Study, Emily J. Tibbett, Sophie Warny, Jessica E. Tierney, Julia S. Wellner, Sarah J. Feakins

Faculty Publications

Terrestrial climate records for Antarctica, beyond the age limit of ice cores, are restricted to the few unglaciated areas with exposed rock outcrops. Marine sediments on Antarctica's continental shelves contain records of past oceanic and terrestrial environments that can provide important insights into Antarctic climate evolution. The SHALDRIL II (Shallow Drilling on the Antarctic Continental Margin) expedition recovered sedimentary sequences from the eastern side of the Antarctic Peninsula of late Eocene, Oligocene, middle Miocene, and early Pliocene age that provides insights into Cenozoic Antarctic climate and ice sheet development. Here, we use biomarker data to assess atmospheric and oceanic temperatures …

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The Role Of Booster Vaccination And Ongoing Viral Evolution In Seasonal Circulation Of Sars-Cov-2, A.N.M. Kraay, M.E. Gallagher, Y. Ge, P. Han, J.M. Baker, K. Koelle, A. Handel, B.A. Lopman Sep 2022

The Role Of Booster Vaccination And Ongoing Viral Evolution In Seasonal Circulation Of Sars-Cov-2, A.N.M. Kraay, M.E. Gallagher, Y. Ge, P. Han, J.M. Baker, K. Koelle, A. Handel, B.A. Lopman

Faculty Publications

Periodic resurgences of COVID-19 in the coming years can be expected, while public health interventions may be able to reduce their intensity. We used a transmission model to assess how the use of booster doses and non-pharmaceutical interventions (NPIs) amid ongoing pathogen evolution might influence future transmission waves. We find that incidence is likely to increase as NPIs relax, with a second seasonally driven surge expected in autumn 2022. However, booster doses can greatly reduce the intensity of both waves and reduce cumulative deaths by 20% between 7 January 2022 and 7 January 2023. Reintroducing NPIs during the autumn as …

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Trade-Offs Between Risks Of Predation And Starvation In Larvae Make The Shelf Break An Optimal Spawning Location For Atlantic Bluefin Tuna, Taylor A. Shropshire, Steven L. Morey, Eric P. Chassignet, Mandy Karnauskas, Victoria J. Coles, Estrella Malca, Raúl Laiz-Carrión, Øyvind Fiksen, Patricia Reglero, Akihiro Shiroza, José M. Quintanilla Hervas, Trika Gerard, John T. Lamkin, Michael R. Stukel Sep 2022

Trade-Offs Between Risks Of Predation And Starvation In Larvae Make The Shelf Break An Optimal Spawning Location For Atlantic Bluefin Tuna, Taylor A. Shropshire, Steven L. Morey, Eric P. Chassignet, Mandy Karnauskas, Victoria J. Coles, Estrella Malca, Raúl Laiz-Carrión, Øyvind Fiksen, Patricia Reglero, Akihiro Shiroza, José M. Quintanilla Hervas, Trika Gerard, John T. Lamkin, Michael R. Stukel

Faculty Publications

Atlantic bluefin tuna (ABT) (Thunnus thynnus) travel long distances to spawn in oligotrophic regions of the Gulf of Mexico (GoM) which suggests these regions offer some unique benefit to offspring survival. To better understand how larval survival varies within the GoM a spatially explicit, Lagrangian, individual-based model was developed that simulates dispersal and mortality of ABT early life stages within realistic predator and prey fields during the spawning periods from 1993 to 2012. The model estimates that starvation is the largest cumulative source of mortality associated with an early critical period. However, elevated predation on older larvae is …

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Demonstrate Values: Behavioral Displays Of Moral Outrage As A Cue To Long-Term Mate Potential, Mitch Brown, Lucas A. Keefer, Donald F. Sacco, Faith L. Brown Sep 2022

Demonstrate Values: Behavioral Displays Of Moral Outrage As A Cue To Long-Term Mate Potential, Mitch Brown, Lucas A. Keefer, Donald F. Sacco, Faith L. Brown

Faculty Publications

Recent findings suggest that moral outrage signals trustworthiness to others, and such perceptions play a uniquely important role in identifying social opportunities. We conducted four studies (N = 870) investigating how displays of moral outrage are perceived in the specific context of mating. Results indicated participants, particularly women, found prospective mates describing outrage-signaling activism to be more desirable for long-term mating (Study 1), and this perception of desirability was similarly inferred among same-sex raters (Study 2). We further replicated findings in Study 1, while additionally considering the basis of women’s attraction toward outraged behavior through candidate mediators (Studies 3). Although …

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Modelling Of Cohesive Expandable Lcms For Fractures With Large Apertures, Lu Lee, Musaab Magzoub, Arash Dahi Taleghani, Saeed Salehi, Guoqiang Li Sep 2022

Modelling Of Cohesive Expandable Lcms For Fractures With Large Apertures, Lu Lee, Musaab Magzoub, Arash Dahi Taleghani, Saeed Salehi, Guoqiang Li

Faculty Publications

The problem of loss circulation in geothermal wells is inherently challenging due to high temperatures, brittle rocks, and presence of abundant fractures. Because of the inherent challenges in geothermal environments, there are limitations in selecting proper lost circulation materials (LCMs). Traditional LCMs such as calcium carbonates that are commonly used in the oil and gas drilling may be softened and prone to failure during geothermal drilling. Moreover, evaluating the performance of different LCMs for geothermal drilling requires unique testing setups, which is expensive, and complicated to run due to harsh environmental conditions of geothermal systems. Herein, we present a numerical …

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Thermal, Physical, And Optical Properties Of The Solution And Melt Synthesized Single Crystal Cspbbr3 Halide Perovskite, Kirti Agrawal, Syed Mohammad Abid Hasan, Joanna Blawat, Nishir Mehta, Yuming Wang, Rafael Cueto, Miriam Siebenbuerger, Orhan Kizilkaya, Narasimha S. Prasad, James Dorman, Rongying Jin, Manas Ranjan Gartia Sep 2022

Thermal, Physical, And Optical Properties Of The Solution And Melt Synthesized Single Crystal Cspbbr3 Halide Perovskite, Kirti Agrawal, Syed Mohammad Abid Hasan, Joanna Blawat, Nishir Mehta, Yuming Wang, Rafael Cueto, Miriam Siebenbuerger, Orhan Kizilkaya, Narasimha S. Prasad, James Dorman, Rongying Jin, Manas Ranjan Gartia

Faculty Publications

Inorganic lead-halide perovskite, cesium lead bromide (CsPbBr3), shows outstanding optoelectronic properties. Both solution- and melt-based methods have been proposed for CsPbBr3 crystal growth. The solution-based growth was done at low-temperature, whereas the melt-based growth was done at high-temperature. However, the comparison of optical, physical, and defect states using these two different growth conditions has been scarcely studied. Here, we have compared the thermal and optical properties of solution-grown and melt-grown single crystals of CsPbBr3. Positron Annihilation Lifetime Spectroscopy (PALS) analysis showed that melt-grown crystal has a relatively smaller number of defects than the chemical synthesis method. In addition, crystals grown …

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Multi-Objective Optimization Of Aquifer Storage And Recovery Operations Under Uncertainty Via Machine Learning Surrogates, Hamid Vahdat-Aboueshagh, Frank T.C. Tsai, Emad Habib, T. Prabhakar Clement Sep 2022

Multi-Objective Optimization Of Aquifer Storage And Recovery Operations Under Uncertainty Via Machine Learning Surrogates, Hamid Vahdat-Aboueshagh, Frank T.C. Tsai, Emad Habib, T. Prabhakar Clement

Faculty Publications

Aquifer storage and recovery (ASR) is an important water management approach to store excess surface water into aquifers for later use. Quantitative evaluation of ASR performance is not a trivial task and yet becomes more exacting when uncertainty analysis is added to the dimensionality of the problem. Inclusion of uncertainty into the framework of scheduling optimal ASR operations also increases the level of complexity. This study integrates a surrogate modeling approach coupled with a mixed integer nonlinear programming (MINLP) algorithm to optimize multi-objective ASR operations. The uncertainties are analyzed based upon a thorough sampling of the parameters space as well …

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Impact Of Operational And Restoration Interdependencies On Cost And Disruptive Effect In Multilayered Infrastructure Networks, Brigham A. Moore, Steven J. Schuldt, Ramana V. Grandhi, David R. Jacques Sep 2022

Impact Of Operational And Restoration Interdependencies On Cost And Disruptive Effect In Multilayered Infrastructure Networks, Brigham A. Moore, Steven J. Schuldt, Ramana V. Grandhi, David R. Jacques

Faculty Publications

Network-based modeling and simulation of interdependent infrastructure systems has traditionally modeled 1 to 2 interdependency subtypes within a given model. Typically, different interdependency subtypes are modeled with special sets, variables, and parameters rather than integrated into the model as a standard feature. The most thorough current modeling efforts have modeled only four of the nine interdependency subtypes identified throughout academic literature. This paper presents the first model to incorporate all nine of the identified interdependency subtypes in a multiobjective mixed-integer program. The model is tested using a simulated flood event and a modified interdependent infrastructure dataset representing a medium- to …

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