Digital Commons Network^™

The Confederate Homefront: A History In Documents, Jaqueline G. Campbell

Civil War Book Review

Merging Home Front and Battle Front Wallace Hettle, Professor of History at the University of Northern Iowa is the author of Inventing Stonewall Jackson: A Civil War Hero in History and Memory an exploration of the authors who shaped our understanding of a civil war legend. Professor Hettle....

Lincoln's Lieutenants: The High Command Of The Army Of The Potomac, Andrew S. Bledsoe

Civil War Book Review

Inside the Union High Command The Army of the Potomac, arguably the Union's most important field army, has been the subject of many historical examinations. Classic works like Bruce Catton's beautifully-written narrative trilogy and Rusell H. Beatie's analytical multivolume study have, for years, r....

Novel Spiroplasma Spp. Cultured From Brains And Lymph Nodes From Ruminants Affected With Transmissible Spongiform Encephalopathy, Frank O. Bastian, James Lynch, Sue Hagius, Xiaochu Wu, Greg Mccormick, Donald G. Luther, Philip H. Elzer

Faculty Publications

© 2017 American Association of Neuropathologists, Inc. Spiroplasma spp., tiny filterable wall-less bacteria, are consistently associated with the transmissible spongiform encephalopathies (TSE). Spiral forms have been transiently isolated from TSE-affected brain tissues in SP4 growth media designed for isolation of Spiroplasma spp., but the isolate could not be propagated in SP4 media. A bacterium must grow in vitro in cell-free cultures to allow full characterization of a suspect pathogen. Here, a novel Spiroplasma sp. was isolated from scrapie- and chronic wasting disease (CWD)-affected brains and lymph nodes. Filtrates of tissue homogenates inoculated into Brucella media incubated for 14 days at …

Nanotechnology Considerations For Poultry And Livestock Production Systems - A Review, Mohamed I. El Sabry, Kenneth W. Mcmillin, Cristina M. Sabliov

Faculty Publications

© 2018 by Mohamed I. El Sabry. The global animal productivity should proportionally increase to meet the food needs of a growing population. This article presents an overview of the current and promising nano-applications in poultry and livestock production systems that could offer opportunities for improved efficiencies and productivity. Some basic information on nanotechnology and the economics of nanotechnology is provided. Poultry and animal production systems, current situation and available tools and techniques are presented in parallel with animal health care, animal nutrition, animal shetter and food processing nano-applications and their advantages. These applications are directly or indirectly related to …

Characterization Of Prostate Cancer Cell Progression In Zebrafish Xenograft Model, Wei Xu, Brittany A. Foster, Mackenzie Richards, Kenneth R. Bondioli, Girish Shah, Christopher C. Green

Faculty Publications

Early diagnosis of prostate cancer (PCa) is critical for the application of efficient treatment to PCa patients. However, the majority of PCas remains indolent from several months to several years before malignancy. Current diagnosis methods have limitations in their reliability and are inefficient in time cost. Thus, an efficient in vivo PCa cell xenograft model is highly desired for diagnostic studies in PCas. In the present study we present a standardized procedure to create a PCa cell xenograft model using zebrafish (Danio rerio) as the host. PC3-CTR cells, a cell line from adenocarcinoma with stable expression of calcitonin receptor (CRT), …

Ex Vivo Gut Culture For Studying Differentiation And Migration Of Small Intestinal Epithelial Cells, Xiaofei Sun, Xing Fu, Min Du, Mei Jun Zhu

Faculty Publications

© 2018 The Authors. Epithelial cultures are commonly used for studying gut health. However, due to the absence of mesenchymal cells and gut structure, epithelial culture systems including recently developed three-dimensional organoid culture cannot accurately represent in vivo gut development, which requires intense cross-regulation of the epithelial layer with the underlying mesenchymal tissue. In addition, organoid culture is costly. To overcome this, a new culture system was developed using mouse embryonic small intestine. Cultured intestine showed spontaneous peristalsis, indicating the maintenance of the normal gut physiological structure. During 10 days of ex vivo culture, epithelial cells moved along the gut …

Gata4-Dependent Differentiation Of C-Kit+-Derived Endothelial Cells Underlies Artefactual Cardiomyocyte Regeneration In The Heart, Bryan D. Maliken, Onur Kanisicak, Jason Karch, Hadi Khalil, Xing Fu, Justin G. Boyer, Vikram Prasad, Yi Zheng, Jeffery D. Molkentin

Faculty Publications

© 2018 The Authors. BACKGROUND: Although c-Kit+ adult progenitor cells were initially reported to produce new cardiomyocytes in the heart, recent genetic evidence suggests that such events are exceedingly rare. However, to determine if these rare events represent true de novo cardiomyocyte formation, we deleted the necessary cardiogenic transcription factors Gata4 and Gata6 from c-Kit-expressing cardiac progenitor cells. METHODS: Kit allele-dependent lineage tracing and fusion analysis were performed in mice following simultaneous Gata4 and Gata6 cell type-specifc deletion to examine rates of putative de novo cardiomyocyte formation from c-Kit+ cells. Bone marrow transplantation experiments were used to defne the contribution …

The War For The Common Soldier: How Men Thought, Fought, And Survived In Civil War Armies, Meg Groeling

Civil War Book Review

Carmichael's book examines how Civil War soldiers endured their life in the Union and Confederate armies. These men were volunteer soldiers, for the most part, so military life was a shock for most of them. One example concerns uniforms and the difference between Union and Confederate reactions. At the beginning of the war, everyone got a new set of clothes and a pair of shoes. For Yankees, this was a reasonably regular occurrence, but for Rebels, a new set of clothing or a pair of shoes of any variety was difficult to obtain. Carmichael uses letters and records from individual …

Yb3+ And Yb3+/Er3+ Doping For Near-Infrared Emission And Improved Stability Of Cspbcl3 Nanocrystals, Xiangtong Zhang, Yu Zhang, Xiaoyu Zhang, Wenxu Yin, Yu Wang, Hua Wang, Min Lu, Zhiyang Li, Zhiyong Gu, William W. Yu

Faculty Publications

© 2018 The Royal Society of Chemistry. Lead halide perovskite nanocrystals (NCs) exhibit excellent tunable emissions covering the entire visible spectral region, but they do not emit near-infrared (NIR) light. We synthesized rare earth element doped CsPbCl3 NCs for NIR emission. The Yb3+ doped CsPbCl3 NCs emitted strong 986 nm NIR light; the Yb3+/Er3+ co-doped CsPbCl3 NCs emitted at 1533 nm. The total photoluminescence quantum yield (PL QY) of the CsPbCl3 NCs changed from 5.0% to 127.8% upon incorporating 2.0% Yb3+, a factor of 25.6 times enhancement. The material's stability was tested under continuous ultraviolet (365 nm) irradiation. The doped …

Quality Competition And Reputation Of Restaurants: The Effects Of Capacity Constraints, You Hua Chen, Qinying He, Krishna P. Paudel

Faculty Publications

© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor and Francis Group. All Rights Reserved. Capacity constraints have major effects on restaurant competition. This article captures the impact of capacity constraints on quality and quantity competition of restaurant industry by employing a two-stage asymmetric capacity constraints model. There are several findings from this study. First, results of this study indicate that reputation difference increases total outputs and quality in equilibrium. Second, capacity constraints decrease the consumer surplus (CS) as well as social welfare (SW), but restaurants benefit from capacity constraints sometimes. Third, capacity reduces both the quality …

Sacred Vs. Profane In The Great War: A Neutral’S Indictment, Marty Miller

Faculty Publications

No abstract provided.

Phylogenomics Of Pike Cichlids (Cichlidae: Crenicichla): The Rapid Ecological Speciation Of An Incipient Species Flock, E. D. Burress, F. Alda, A. Duarte, M. Loureiro, J. W. Armbruster, P. Chakrabarty

Faculty Publications

© 2017 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2017 European Society For Evolutionary Biology The rapid rise of phenotypic and ecological diversity in independent lake-dwelling groups of cichlids is emblematic of the East African Great Lakes. In this study, we show that similar ecologically based diversification has occurred in pike cichlids (Crenicichla) throughout the Uruguay River drainage of South America. We collected genomic data from nearly 500 ultraconserved element (UCEs) loci and >260 000 base pairs across 33 species, to obtain a phylogenetic hypothesis for the major species groups and to evaluate the relationships and genetic …

Variation Across Mitochondrial Gene Trees Provides Evidence For Systematic Error: How Much Gene Tree Variation Is Biological?, Emilie J. Richards, Jeremy M. Brown, Anthony J. Barley, Rebecca A. Chong, Robert C. Thomson

Faculty Publications

© The Author(s) 2018. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. All rights reserved. The use of large genomic data sets in phylogenetics has highlighted extensive topological variation across genes. Much of this discordance is assumed to result from biological processes. However, variation among gene trees can also be a consequence of systematic error driven by poor model fit, and the relative importance of biological vs. methodological factors in explaining gene tree variation is a major unresolved question. Using mitochondrial genomes to control for biological causes of gene tree variation, we estimate the extent …

Isolation By Distance, Not Incipient Ecological Speciation, Explains Genetic Differentiation In An Andean Songbird (Aves: Furnariidae: Cranioleuca Antisiensis, Line-Cheeked Spinetail) Despite Near Threefold Body Size Change Across An Environmental Gradient, Glenn F. Seeholzer, Robb T. Brumfield

Faculty Publications

© 2017 John Wiley & Sons Ltd During the process of ecological speciation, reproductive isolation results from divergent natural selection and leads to a positive correlation between genetic divergence and adaptive phenotypic divergence, that is, isolation by adaptation (IBA). In natural populations, phenotypic differentiation is often autocorrelated with geographic distance, making IBA difficult to distinguish from the neutral expectation of isolation by distance (IBD). We examined these two alternatives in a dramatic case of clinal phenotypic variation in an Andean songbird, the Line-cheeked Spinetail (Cranioleuca antisiensis). At its geographic extremes, this species shows a near threefold difference in body mass …

Trade-Related Job Loss, Support For Trade, And Vote Choice In The 2016 Presidential Election, Hannah Lukinovich

Honors Capstones

No abstract provided.

Incentives, Commitment Contracts And Exercise Participation: Evidence From A Field Experiment From Students At Louisiana State University., Andreas Huang

Honors Capstones

No abstract provided.

The Story Of The Keystone Xl Pipeline Controversy: How The Battle Against Kxl Became The War Against Climate Change, Leah Sanders

Honors Capstones

No abstract provided.

The Impact Of Value On Prospective Memory Performance In Face Matching Tasks, Madeline N. Walker

Honors Capstones

No abstract provided.

Louisiana Agriculture Winter, 2018, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Stress Energy Tensor Renormalization For A Spherically Symmetric Massive Scalar Field On A Quantum Space-Time, Nahuel Barrios, Rodolfo Gambini, Jorge Pullin

Faculty Publications

We consider a massive scalar field living on the recently found exact quantum space-time corresponding to vacuum spherically symmetric loop quantum gravity. The discreteness of the quantum space time naturally regularizes the scalar field, eliminating divergences. However, the resulting finite theory depends on the details of the micro physics. We argue that such dependence can be eliminated through a finite renormalization and discuss its nature. This is an example of how quantum field theories on quantum space times deal with the issues of divergences in quantum field theories.

Room-Temperature Photon-Number-Resolved Detection Using A Two-Mode Squeezer, Elisha S. Matekole, Deepti Vaidyanathan, Kenji W. Arai, Ryan T. Glasser, Hwang Lee, Jonathan P. Dowling

Faculty Publications

We study the average intensity-intensity correlations signal at the output of a two-mode squeezing device with |N〉 × |α) as the two input modes. We show that the input photon-number can be resolved from the average intensity-intensity correlations. In particular, we show jumps in the average intensity-intensity correlations signal as a function of input photon-number N. Therefore, we propose that such a device may be deployed as photon-number-resolving detector at room temperature with high efficiency.

Fundamental Limits On Quantum Dynamics Based On Entropy Change, Siddhartha Das, Sumeet Khatri, George Siopsis, Mark M. Wilde

Faculty Publications

It is well known in the realm of quantum mechanics and information theory that the entropy is non-decreasing for the class of unital physical processes. However, in general, the entropy does not exhibit monotonic behavior. This has restricted the use of entropy change in characterizing evolution processes. Recently, a lower bound on the entropy change was provided in the work of Buscemi, Das, and Wilde [Phys. Rev. A 93(6), 062314 (2016)]. We explore the limit that this bound places on the physical evolution of a quantum system and discuss how these limits can be used as witnesses to characterize quantum …

Kelt-19ab: A P ∼ 4.6-Day Hot Jupiter Transiting A Likely Am Star With A Distant Stellar Companion, Robert J. Siverd, Karen A. Collins, George Zhou, Samuel N. Quinn, B. Scott Gaudi, Keivan G. Stassun, Marshall C. Johnson, Allyson Bieryla, David W. Latham, David R. Ciardi, Joseph E. Rodriguez, Kaloyan Penev, Marc Pinsonneault, Joshua Pepper, Jason D. Eastman, Howard Relles, John F. Kielkopf, Joao Gregorio, Thomas E. Oberst, Giulio Francesco Aldi, Gilbert A. Esquerdo, Michael L. Calkins, Perry Berlind, Courtney D. Dressing, Rahul Patel, Daniel J. Stevens, Thomas G. Beatty, Michael B. Lund, Jonathan Labadie-Bartz, Rudolf B. Kuhn, Knicole D. Colón, David James, Xinyu Yao

Faculty Publications

We present the discovery of the giant planet KELT-19Ab, which transits the moderately bright (V ∼ 9.9) A8V star TYC 764-1494-1 with an orbital period of 4.61 days. We confirm the planetary nature of the companion via a combination of radial velocities, which limit the mass to ≳4.1 MJ (3s), and a clear Doppler tomography signal, which indicates a retrograde projected spin-orbit misalignment of λ = -179.7-3.8+3.7 degrees. Global modeling indicates that the Teff = 7500 ±110 K host star has M M = 1.62+0.20-0.25 and R = 1.83 0.10 R. The planet has a radius of RP = 1.91 …

Ogle-2017-Blg-0173lb: Low-Mass-Ratio Planet In A "Hollywood" Microlensing Event, K. H. Hwang, A. Udalski, Y. Shvartzvald, Y. H. Ryu, M. D. Albrow, S. J. Chung, A. Gould, C. Han, Y. K. Jung, I. G. Shin, J. C. Yee, W. Zhu, S. M. Cha, D. J. Kim, H. W. Kim, S. L. Kim, C. U. Lee, D. J. Lee, Y. Lee, B. G. Park, R. W. Pogge, J. Skowron, P. Mróz, R. Poleski, S. Kozłowski, I. Soszyński, P. Pietrukowicz, M. K. Szymański, K. Ulaczyk, M. Pawlak, G. Bryden, C. Beichman, S. Calchi Novati

Faculty Publications

We present microlensing planet OGLE-2017-BLG-0173Lb, with planet-host mass ratio of either q ∼ 2.5 ×10-5 or q ∼ 6.5 ×10-5, the lowest or among the lowest ever detected. The planetary perturbation is strongly detected, δx2 10000, because it arises from a bright (therefore, large) source passing over and enveloping the planetary caustic: a so-called "Hollywood" event. The factor ∼2.5 offset in q arises because of a previously unrecognized discrete degeneracy between Hollywood events in which the caustic is fully enveloped and those in which only one flank is enveloped, which we dub "Cannae" and "von Schlieffen," respectively. This degeneracy is …

Ogle-2016-Blg-1190lb: The First Spitzer Bulge Planet Lies Near The Planet/Brown-Dwarf Boundary, Y. H. Ryu, J. C. Yee, A. Udalski, I. A. Bond, Y. Shvartzvald, W. Zang, R. Figuera Jaimes, U. G. Jorgensen, W. Zhu, C. X. Huang, Y. K. Jung, M. D. Albrow, S. J. Chung, A. Gould, C. Han, K. H. Hwang, I. G. Shin, S. M. Cha, D. J. Kim, H. W. Kim, S. L. Kim, C. U. Lee, D. J. Lee, Y. Lee, B. G. Park, R. W. Pogge, S. Calchi Novati, S. Carey, C. B. Henderson, C. Beichman, B. S. Gaudi, P. Mróz, R. Poleski

Faculty Publications

We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar, an assignation that can be confirmed by two epochs of high-resolution imaging of the combined source-lens baseline object. The planet's mass, Mp = 13.4 ± 0.9 MJ, places it right at the deuterium-burning limit, i.e., the conventional boundary between "planets" and "brown dwarfs." Its existence raises the question of whether such objects are really "planets" (formed within the disks of their hosts) or "failed stars" (low-mass objects formed by gas fragmentation). This question may ultimately be addressed by comparing disk …

Ukirt Under New Management: Status And Plans, K. W. Hodapp, T. Kerr, W. Varricatt, R. Mclaren, D. Lonborg, D. H.B. Hall, S. Jacobson, J. Bruursema, S. Dahm, B. N. Dorland, J. A. Munn, F. J. Vrba, J. Dempsey, Y. Shvartzvald, G. Bryden, B. S. Gaudi, C. Beichman, S. Calchi Novati, C. B. Henderson, S. Jacklin, K. Stassun, M. T. Penny, Mike Irwin, Andy Lawrence

Faculty Publications

The United Kingdom Infrared Telescope (UKIRT) observatory has been transferred to the ownership of the University of Hawaii (UH) and is now being managed by UH. We have established partnerships with several organizations to utilize the UKIRT for science projects and to support its operation. Our main partners are the U.S. Naval Observatory (USNO), the East Asian Observatory (EAO), and the UKIRT microlensing team (JPL/IPAC/OSU/Vanderbilt). The USNO is working on deep northern hemisphere surveys in the H and K bands and the UKIRT microlensing team is running a monitoring campaign of the Galactic bulge. EAO, UH, and USNO have individual …

Emergence Of Product Of Constant Curvature Spaces In Loop Quantum Cosmology, Naresh Dadhich, Anton Joe, Parampreet Singh

Faculty Publications

The loop quantum dynamics of Kantowski-Sachs and Bianchi-III LRS spacetimes with cosmological constant is studied in the effective spacetime description. We show that classical singularity is avoided, and replaced by bounces of the triads. Unlike the singularity resolution in other loop quantum spacetimes, evolution results in a spacetime which retains quantum curvature after the bounce on one side of the temporal evolution. In the asymptotic limit, a spacetime which is a direct product of two constant curvature spaces emerges. Interestingly, despite high curvature, the effective spacetime metric is a solution of Einstein field's equations albeit with a different stress energy …

The Vertex Expansion In The Consistent Histories Formulation Of Spin Foam Loop Quantum Cosmology, David Craig, Parampreet Singh

Faculty Publications

Assignment of consistent quantum probabilities to events in a quantum universe is a fundamental challenge which every quantum cosmology/gravity framework must overcome. In loop quantum cosmology, this issue leads to a fundamental question: What is the probability that the universe undergoes a non-singular bounce? Using the consistent histories formulation, this question was successfully answered recently by the authors for a spatially flat FRW model in the canonical approach. In this manuscript, we obtain a covariant generalization of this result. Our analysis is based on expressing loop quantum cosmology in the spin foam paradigm and using histories defined via volume transitions …

2018 Louisiana Summary: Agriculture And Natural Resources, Lsu Agcenter

Louisiana Summary: Agriculture and Natural Resources

This publication tabulates the value of Louisiana agriculture in 2018. Agents and specialists of the Louisiana Cooperative Extension Service, as well as other agencies — both private and public — compiled the data. Their analyses focus on the animal, forestry, fisheries, plant and wildlife commodities that constitute our vital agricultural industry. Agricultural and natural resource industries contribute significantly to our state’s economy with the potential for increased economic benefits and job creation through value-added processing in urban and rural communities throughout Louisiana.

As has been a reoccurring theme over the last several years, the 2018 growing and harvest seasons had …

Single-Shot Measurement Of The Orbital-Angular-Momentum Spectrum Of Light, Girish Kulkarni, Rishabh Sahu, Omar S. Magaña-Loaiza, Robert W. Boyd, Anand K. Jha

Faculty Publications

We propose a single-shot scheme to measure the orbital-angular-momentum (OAM) spectrum of a partially coherent field. We first test the scheme for a known field, and then use it to measure the OAM spectrum of the signal-idler field from parametric down-conversion with Schmidt number K = 82:1.