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Louisiana State University

2016

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The Affine Grassmannian And The Springer Resolution In Positive Characteristic, Pramod N. Achar, Laura Rider Dec 2016

The Affine Grassmannian And The Springer Resolution In Positive Characteristic, Pramod N. Achar, Laura Rider

Faculty Publications

An important result of Arkhipov-Bezrukavnikov-Ginzburg relates constructible sheaves on the affine Grassmannian to coherent sheaves on the dual Springer resolution. In this paper, we prove a positive-characteristic analogue of this statement, using the framework of 'mixed modular sheaves' recently developed by the first author and Riche. As an application, we deduce a relationship between parity sheaves on the affine Grassmannian and Bezrukavnikov's 'exotic t-structure' on the Springer resolution.


Peg3 Binds To H19-Icr As A Transcriptional Repressor, An Ye, Hongzhi He, Joomyeong Kim Dec 2016

Peg3 Binds To H19-Icr As A Transcriptional Repressor, An Ye, Hongzhi He, Joomyeong Kim

Faculty Publications

© 2016 Taylor & Francis Group, LLC. Paternally expressed gene 3 (Peg3) encodes a DNA-binding protein with 12 C2H2 zinc finger motifs. In the current study, we performed ChIP-seq using mouse embryonic fibroblast (MEF) cells. This experiment identified a set of 16 PEG3 genomic targets, the majority of which overlapped with the promoter regions of genes with oocyte expression. These potential downstream genes were upregulated in MEF cells lacking PEG3 protein, suggesting a potential repressor role for PEG3. Our study also identified the imprinting control region (ICR) of H19 as a genomic target. According to the results, PEG3 binds to …


Isolation And Characterization Of Acidobacterium Ailaaui Sp. Nov., A Novel Member Of Acidobacteria Subdivision 1, From A Geothermally Heated Hawaiian Microbial Mat, Marisa R. Myers, G. M. King Dec 2016

Isolation And Characterization Of Acidobacterium Ailaaui Sp. Nov., A Novel Member Of Acidobacteria Subdivision 1, From A Geothermally Heated Hawaiian Microbial Mat, Marisa R. Myers, G. M. King

Faculty Publications

© 2016 IUMS. A novel member of Acidobacteria was isolated from a microbial mat growing on a geothermally heated dead tree trunk in Hawai'i Volcanoes National Park (HI, USA). The rod-shaped, Gramnegative capsulated cells of strain PMMR2T were non-motile and catalase and oxidase negative. Growth occurred aerobically from 15 to 55 °C (optimum, 40 °C) and at pH values from 4.5 to 7.0 (optimum, 6.5). A limited range of sugars and organic acids supported growth. However, results of a genomic analysis suggested that various polysaccharides might be hydrolysed as carbon sources, and evidence for pectin degradation was observed in liquid …


Treescaper: Visualizing And Extracting Phylogenetic Signal From Sets Of Trees, Wen Huang, Guifang Zhou, Melissa Marchand, Jeremy R. Ash, David Morris, Paul Van Dooren, Jeremy M. Brown, Kyle A. Gallivan, Jim C. Wilgenbusch Dec 2016

Treescaper: Visualizing And Extracting Phylogenetic Signal From Sets Of Trees, Wen Huang, Guifang Zhou, Melissa Marchand, Jeremy R. Ash, David Morris, Paul Van Dooren, Jeremy M. Brown, Kyle A. Gallivan, Jim C. Wilgenbusch

Faculty Publications

© The Author 2016. Modern phylogenomic analyses often result in large collections of phylogenetic trees representing uncertainty in individual gene trees, variation across genes, or both. Extracting phylogenetic signal from these tree sets can be challenging, as they are difficult to visualize, explore, and quantify. To overcome some of these challenges, we have developed TreeScaper, an application for tree set visualization as well as the identification of distinct phylogenetic signals. GUI and command-line versions of TreeScaper and a manual with tutorials can be downloaded from https://github.com/ whuang08/TreeScaper/releases. TreeScaper is distributed under the GNU General Public License.


Crapemyrtle Bark Scale: A New Threat For Crapemyrtles, A Popular Landscape Plant In The U.S, Zinan Wang, Yan Chen, Mengmeng Gu, Erfan Vafaie, Michael Merchant, Rodrigo Diaz Dec 2016

Crapemyrtle Bark Scale: A New Threat For Crapemyrtles, A Popular Landscape Plant In The U.S, Zinan Wang, Yan Chen, Mengmeng Gu, Erfan Vafaie, Michael Merchant, Rodrigo Diaz

Faculty Publications

© 2016 by the authors; licensee MDPI, Basel, Switzerland. Crapemyrtle bark scale, Acanthococcus (=Eriococcus) lagerstroemiae (Kuwana) (Hemiptera: Eriococcidae), is a newly introduced insect pest on crapemyrtles, Lagerstroemia spp. (Myrtales: Lythraceae), one of the most popular flowering shrubs in the U.S. Since first detected in Texas in 2004, this pest has spread to twelve states causing losses to stakeholders. To develop a management plan, we reviewed current knowledge about the pest’s biology and ecology, and suggested research approaches including studying its thermal tolerance, host range, plant resistance and biological control. Parasitoids and predators have been reared from A. lagerstroemiae in the …


A Review Of The Tawny Crazy Ant, Nylanderia Fulva, An Emergent Ant Invader In The Southern United States: Is Biological Control A Feasible Management Option?, Zinan Wang, Lori Moshman, Emily C. Kraus, Blake E. Wilson, Namoona Acharya, Rodrigo Diaz Dec 2016

A Review Of The Tawny Crazy Ant, Nylanderia Fulva, An Emergent Ant Invader In The Southern United States: Is Biological Control A Feasible Management Option?, Zinan Wang, Lori Moshman, Emily C. Kraus, Blake E. Wilson, Namoona Acharya, Rodrigo Diaz

Faculty Publications

© 2016 by the authors; licensee MDPI, Basel, Switzerland. The tawny crazy ant, Nylanderia fulva (Mayr) (Hymenoptera: Formicidae), has invaded states of the U.S. including Texas, Louisiana, Mississippi, Alabama, Florida, and Georgia. Native to South America, N. fulva is considered a pest in the U.S. capable of annoying homeowners and farmers, as well as displacing native ant species. As it continues to expand its range, there is a growing need to develop novel management techniques to control the pest and prevent further spread. Current management efforts rely heavily on chemical control, but these methods have not been successful. A review …


Sequence Capture And Next-Generation Sequencing Of Ultraconserved Elements In A Large-Genome Salamander, Catherine E. Newman, Christopher C. Austin Dec 2016

Sequence Capture And Next-Generation Sequencing Of Ultraconserved Elements In A Large-Genome Salamander, Catherine E. Newman, Christopher C. Austin

Faculty Publications

© 2016 John Wiley & Sons Ltd Amidst the rapid advancement in next-generation sequencing (NGS) technology over the last few years, salamanders have been left behind. Salamanders have enormous genomes—up to 40 times the size of the human genome—and this poses challenges to generating NGS data sets of quality and quantity similar to those of other vertebrates. However, optimization of laboratory protocols is time-consuming and often cost prohibitive, and continued omission of salamanders from novel phylogeographic research is detrimental to species facing decline. Here, we use a salamander endemic to the southeastern United States, Plethodon serratus, to test the utility …


Some Considerations On The Structure Of Transition Densities Of Symmetric Lévy Processes, Lewis J Bray, Neils Jacob Dec 2016

Some Considerations On The Structure Of Transition Densities Of Symmetric Lévy Processes, Lewis J Bray, Neils Jacob

Communications on Stochastic Analysis

No abstract provided.


On The Kolmogorov-Wiener-Masani Spectrum Of A Multi-Mode Weakly Stationary Quantum Process, K R Parthasarathy, Ritabrata Sengupta Dec 2016

On The Kolmogorov-Wiener-Masani Spectrum Of A Multi-Mode Weakly Stationary Quantum Process, K R Parthasarathy, Ritabrata Sengupta

Communications on Stochastic Analysis

No abstract provided.


Strong Stationary Times And The Fundamental Matrix For Recurrent Markov Chains, P J Fitzsimmons Dec 2016

Strong Stationary Times And The Fundamental Matrix For Recurrent Markov Chains, P J Fitzsimmons

Communications on Stochastic Analysis

No abstract provided.


Positive Definiteness On Spheres And Hyperbolic Spaces, Walter R Bloom, N J Wildberger Dec 2016

Positive Definiteness On Spheres And Hyperbolic Spaces, Walter R Bloom, N J Wildberger

Communications on Stochastic Analysis

No abstract provided.


Preface Dec 2016

Preface

Communications on Stochastic Analysis

No abstract provided.


Brownian Manifolds, Negative Type And Geo-Temporal Covariances, N H Bingham, Aleksandar Mijatović, Tasmin L Symons Dec 2016

Brownian Manifolds, Negative Type And Geo-Temporal Covariances, N H Bingham, Aleksandar Mijatović, Tasmin L Symons

Communications on Stochastic Analysis

No abstract provided.


Convolution Semigroups Of Probability Measures On Gelfand Pairs, Revisited, David Applebaum Dec 2016

Convolution Semigroups Of Probability Measures On Gelfand Pairs, Revisited, David Applebaum

Communications on Stochastic Analysis

No abstract provided.


Bimodules And Hypergroups Associated With Actions Of A Pair Of Groups, Satoshi Kawakami, Tatsuya Tsurii, Shigeru Yamagami Dec 2016

Bimodules And Hypergroups Associated With Actions Of A Pair Of Groups, Satoshi Kawakami, Tatsuya Tsurii, Shigeru Yamagami

Communications on Stochastic Analysis

No abstract provided.


Semimartingales In Locally Compact Abelian Groups And Their Characteristic Triples, M S Bingham Dec 2016

Semimartingales In Locally Compact Abelian Groups And Their Characteristic Triples, M S Bingham

Communications on Stochastic Analysis

No abstract provided.


Conditions For Stationarity And Ergodicity Of Two-Factor Affine Diffusions, Beáta Bolyog, Gyula Pap Dec 2016

Conditions For Stationarity And Ergodicity Of Two-Factor Affine Diffusions, Beáta Bolyog, Gyula Pap

Communications on Stochastic Analysis

No abstract provided.


A Study In Locally Compact Groups—Chabauty Space, Sylow Theory, The Schur-Zassenhaus Formalism, The Prime Graph For Near Abelian Groups, Wolfgang Herfort, Karl H Hofmann, Francesco G Russo Dec 2016

A Study In Locally Compact Groups—Chabauty Space, Sylow Theory, The Schur-Zassenhaus Formalism, The Prime Graph For Near Abelian Groups, Wolfgang Herfort, Karl H Hofmann, Francesco G Russo

Communications on Stochastic Analysis

No abstract provided.


Generalized Commutative Association Schemes, Hypergroups, And Positive Product Formulas, Michael Voit Dec 2016

Generalized Commutative Association Schemes, Hypergroups, And Positive Product Formulas, Michael Voit

Communications on Stochastic Analysis

No abstract provided.


Supplement: The Rate Of Binary Black Hole Mergers Inferred From Advanced Ligo Observations Surrounding Gw150914, B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. A. Altin, S. B. Anderson, W. G. Anderson, K. Arai, M. C. Araya, C. C. Arceneaux, J. S. Areeda, N. Arnaud, K. G. Arun, S. Ascenzi, G. Ashton, M. Ast Dec 2016

Supplement: The Rate Of Binary Black Hole Mergers Inferred From Advanced Ligo Observations Surrounding Gw150914, B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. A. Altin, S. B. Anderson, W. G. Anderson, K. Arai, M. C. Araya, C. C. Arceneaux, J. S. Areeda, N. Arnaud, K. G. Arun, S. Ascenzi, G. Ashton, M. Ast

Faculty Publications

This article provides supplemental information for a Letter reporting the rate of (BBH) coalescences inferred from 16 days of coincident Advanced LIGO observations surrounding the transient (GW) signal GW150914. In that work we reported various rate estimates whose 90% confidence intervals fell in the range 2-600 Gpc-3yr-1. Here we give details on our method and computations, including information about our search pipelines, a derivation of our likelihood function for the analysis, a description of the astrophysical search trigger distribution expected from merging BBHs, details on our computational methods, a description of the effects and our model for calibration uncertainty, and …


The Target Of Β-Expansin Expb1 In Maize Cell Walls From Binding And Solid-State Nmr Studies, Tuo Wang, Yuning Chen, Akira Tabuchi, Daniel J. Cosgrove, Mei Hong Dec 2016

The Target Of Β-Expansin Expb1 In Maize Cell Walls From Binding And Solid-State Nmr Studies, Tuo Wang, Yuning Chen, Akira Tabuchi, Daniel J. Cosgrove, Mei Hong

Faculty Publications

© 2016 American Society of Plant Biologists. All rights reserved. The wall-loosening actions of β-expansins are known primarily from studies of EXPB1 extracted from maize (Zea mays) pollen. EXPB1 selectively loosens cell walls (CWs) of grasses, but its specific binding target is unknown. We characterized EXPB1 binding to sequentially extracted maize CWs, finding that the protein primarily binds glucuronoarabinoxylan (GAX), the major matrix polysaccharide in grass CWs. This binding is strongly reduced by salts, indicating that it is predominantly electrostatic in nature. For direct molecular evidence of EXPB1 binding, we conducted solid-state nuclear magnetic resonance experiments using paramagnetic relaxation enhancement …


Bovine Herpesvirus Type-1 Glycoprotein K (Gk) Interacts With Ul20 And Is Required For Infectious Virus Production, Muzammel Haque, Brent Stanfield, Konstantin G. Kousoulas Dec 2016

Bovine Herpesvirus Type-1 Glycoprotein K (Gk) Interacts With Ul20 And Is Required For Infectious Virus Production, Muzammel Haque, Brent Stanfield, Konstantin G. Kousoulas

Faculty Publications

© 2016 We have previously shown that the HSV-1 gK and UL20 proteins interact and function in virion envelopment, membrane fusion, and neuronal entry. Alignment of the predicted secondary structures of gKs encoded by BoHV-1, HSV-1, HSV-2, EHV-1 and VZV indicated a high degree of domain conservation. Two BoHV-1 gK-null mutant viruses were created by either gK gene deletion or stop codon insertion. In addition, a V5 epitope-tag was inserted at the carboxyl terminus of gK gene to detect gK. The engineered gK-null mutant viruses failed to replicate and produce viral plaques. Co-immunoprecipitation of gK and UL20 expressed via different …


Impact Of Sea-Level Rise On Earthquake And Landslide Triggering Offshore The Alentejo Margin (Sw Iberia), M. C. Neves, C. Roque, K. M. Luttrell, J. T. Vázquez, B. Alonso Dec 2016

Impact Of Sea-Level Rise On Earthquake And Landslide Triggering Offshore The Alentejo Margin (Sw Iberia), M. C. Neves, C. Roque, K. M. Luttrell, J. T. Vázquez, B. Alonso

Faculty Publications

© 2016, Springer-Verlag Berlin Heidelberg. Earthquakes and submarine landslides are recurrent and widespread manifestations of fault activity offshore SW Iberia. The present work tests the effects of sea-level rise on offshore fault systems using Coulomb stress change calculations across the Alentejo margin. Large-scale faults capable of generating large earthquakes and tsunamis in the region, especially NE–SW trending thrusts and WNW–ESE trending dextral strike-slip faults imaged at basement depths, are either blocked or unaffected by flexural effects related to sea-level changes. Large-magnitude earthquakes occurring along these structures may, therefore, be less frequent during periods of sea-level rise. In contrast, sea-level rise …


Relict Basin Closure And Crustal Shortening Budgets During Continental Collision: An Example From Caucasus Sediment Provenance, Eric Cowgill, Adam M. Forte, Nathan Niemi, Boris Avdeev, Alex Tye, Charles Trexler, Zurab Javakhishvili, Mikheil Elashvili, Tea Godoladze Dec 2016

Relict Basin Closure And Crustal Shortening Budgets During Continental Collision: An Example From Caucasus Sediment Provenance, Eric Cowgill, Adam M. Forte, Nathan Niemi, Boris Avdeev, Alex Tye, Charles Trexler, Zurab Javakhishvili, Mikheil Elashvili, Tea Godoladze

Faculty Publications

©2016. American Geophysical Union. All Rights Reserved. Comparison of plate convergence with the timing and magnitude of upper crustal shortening in collisional orogens indicates both shortening deficits (200–1700 km) and significant (10–40%) plate deceleration during collision, the cause(s) for which remains debated. The Greater Caucasus Mountains, which result from postcollisional Cenozoic closure of a relict Mesozoic back-arc basin on the northern margin of the Arabia-Eurasia collision zone, help reconcile these debates. Here we use U-Pb detrital zircon provenance data and the regional geology of the Caucasus to investigate the width of the now-consumed Mesozoic back-arc basin and its closure history. …


Evolution And Variability Of The Asian Monsoon And Its Potential Linkage With Uplift Of The Himalaya And Tibetan Plateau, Ryuji Tada, Hongbo Zheng, Peter D. Clift Dec 2016

Evolution And Variability Of The Asian Monsoon And Its Potential Linkage With Uplift Of The Himalaya And Tibetan Plateau, Ryuji Tada, Hongbo Zheng, Peter D. Clift

Faculty Publications

© 2016, Tada et al. Uplift of the Himalaya and Tibetan Plateau (HTP) and its linkage with the evolution of the Asian monsoon has been regarded as a typical example of a tectonic–climate linkage. Although this linkage remains unproven because of insufficient data, our understanding has greatly advanced in the past decade. It is thus timely to summarize our knowledge of the uplift history of the HTP, the results of relevant climate simulations, and spatiotemporal changes in the Indian and East Asian monsoons since the late Eocene. Three major pulses of the HTP uplift have become evident: (1) uplift of …


Identification Of New Deep Sea Sinuous Channels In The Eastern Arabian Sea, Ravi Mishra, D. K. Pandey, Prerna Ramesh, Peter D. Clift Dec 2016

Identification Of New Deep Sea Sinuous Channels In The Eastern Arabian Sea, Ravi Mishra, D. K. Pandey, Prerna Ramesh, Peter D. Clift

Faculty Publications

© 2016, The Author(s). Deep sea channel systems are recognized in most submarine fans worldwide as well as in the geological record. The Indus Fan is the second largest modern submarine fan, having a well-developed active canyon and deep sea channel system. Previous studies from the upper Indus Fan have reported several active channel systems. In the present study, deep sea channel systems were identified within the middle Indus Fan using high resolution multibeam bathymetric data. Prominent morphological features within the survey block include the Raman Seamount and Laxmi Ridge. The origin of the newly discovered channels in the middle …


Modern Vet Management Business Plan, Alaina Stanton Dec 2016

Modern Vet Management Business Plan, Alaina Stanton

Honors Theses

No abstract provided.


Remnant Geometric Hall Response In A Quantum Quench, Justin H. Wilson, Justin C.W. Song, Gil Refael Nov 2016

Remnant Geometric Hall Response In A Quantum Quench, Justin H. Wilson, Justin C.W. Song, Gil Refael

Faculty Publications

Out-of-equilibrium systems can host phenomena that transcend the usual restrictions of equilibrium systems. Here, we unveil how out-of-equilibrium states, prepared via a quantum quench in a two-band system, can exhibit a nonzero Hall-type current - a remnant Hall response - even when the instantaneous Hamiltonian is time reversal symmetric (in contrast to equilibrium Hall currents). Interestingly, the remnant Hall response arises from the coherent dynamics of the wave function that retain a remnant of its quantum geometry postquench, and can be traced to processes beyond linear response. Quenches in two-band Dirac systems are natural venues for realizing remnant Hall currents, …


Parental And Sexual Conflicts Over The Peg3 Imprinted Domain, Hongzhi He, Bambarendage P.U. Perera, An Ye, Joomyeong Kim Nov 2016

Parental And Sexual Conflicts Over The Peg3 Imprinted Domain, Hongzhi He, Bambarendage P.U. Perera, An Ye, Joomyeong Kim

Faculty Publications

© 2016 The Author(s). In the current study, the imprinting control region of the mouse Peg3 domain was deleted to test its functional impact on animal growth and survival. The paternal transmission of the deletion resulted in complete abolition of the transcription of two paternally expressed genes, Peg3 and Usp29, causing the reduced body weight of the pups. In contrast, the maternal transmission resulted in the unexpected transcriptional up-regulation of the remaining paternal allele of both Peg3 and Usp29, causing the increased body weight and survival rates. Thus, the imprinted maternal allele of the ICR may be a suppressor antagonistic …


Using Caenorhabditis Elegans As A Model For Obesity Pharmacology Development, Jolene Zheng, Joseph R. Vasselli, Jason F. King, Michael L. King, Wenqian We, Zachary Fitzpatrick, William D. Johnson, John W. Finley, Roy J. Martin, Michael J. Keenan, Frederic M. Enright, Frank L. Greenway Nov 2016

Using Caenorhabditis Elegans As A Model For Obesity Pharmacology Development, Jolene Zheng, Joseph R. Vasselli, Jason F. King, Michael L. King, Wenqian We, Zachary Fitzpatrick, William D. Johnson, John W. Finley, Roy J. Martin, Michael J. Keenan, Frederic M. Enright, Frank L. Greenway

Faculty Publications

Copyright © 2015 Wolters Kluwer Health, Inc. The Caenorhabditis elegans model is a rapid and inexpensive method to address pharmacologic questions. We describe the use of C. elegans to explore 2 pharmacologic questions concerning candidate antiobesity drugs and illustrate its potential usefulness in pharmacologic research: (1) to determine a ratio of betahistine-olanzapine that blocks the olanzapine-induced intestinal fat deposition (IFD) as detected by Nile red staining and (2) to identify the mechanism of action of a pharmaceutical candidate AB-101 that reduces IFD. Olanzapine (53 mg/mL) increased the IFD (12.1 6 0.1%, P < 0.02), which was blocked by betahistine (763 mg/mL, 39.3 6 0.01%, P < 0.05) in wild-type C. elegans (N2). AB-101 (1.0%) reduced the IFD in N2 (P < 0.05), increased the pharyngeal pumping rate (P < 0.05), and reversed the elevated IFD induced by protease inhibitors atazanavir and ritonavir (P < 0.05). AB-101 did not affect IFD in a ACS null mutant strain acs-4(ok2872) III/hT2[bli-4(e937) let-?(q782) qIs48](I;III) suggesting an involvement of the lipid oxidation pathway and an upregulation of CPT-1. Our studies suggest that C. elegans may be used as a resource in pharmacologic research. This article is intended to stimulate a greater appreciation of its value in the development of new pharmaceutical interventions.