Digital Commons Network^™

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

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.

Louisiana Agriculture Winter, 2018, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Rape Myths And Hookup Culture: An Exploratory Study Of U.S. College Students' Perceptions, Timothy T. Reling, Michael S. Barton, Sarah Anna Becker, Matthew A. Valasik

Faculty Publications

The present study provides the first known systematic examination of the association of hookup culture endorsement and rape myth acceptance. Multivariate regression analysis was conducted to test the primary hypothesis that hookup culture endorsement would be the primary predictor of rape myth acceptance levels among a sample of 422 U.S. college students. Findings indicated the existence of a complex relationship in which rape myth acceptance increases or decreases based upon the form of hookup culture endorsement examined. Beliefs that hookups are harmless and elevate social status increased rape myth acceptance, whereas beliefs that hookups express sexual freedom decreased rape myth …

Improved Enantioselectivity For Atenolol Employing Pivot Based Molecular Imprinting, Andreea Elena Bodoki, Bogdan Cezar Iacob, Laura Elena Gliga, Simona Luminita Oprean, David A. Spivak, Nicholas A. Gariano, Ede Bodoki

Faculty Publications

© 2018 by the authors. In the last few decades, molecular imprinting technology went through a spectacular evolution becoming a well-established tool for the synthesis of highly selective biomimetic molecular recognition platforms. Nevertheless, there is still room for advancement in the molecular imprinting of highly polar chiral compounds. The aim of the present work was to investigate the favorable kosmotropic effect of a ternary complex involving a polar chiral template (eutomer of atenolol) and a functional monomer, bridged by a central metal ion through well-defined, spatially directional coordinate bonds. The efficiency of the chiral molecular recognition was systematically assessed on …

A Spatiotemporal Dna Endoploidy Map Of The Arabidopsis Root Reveals Roles For The Endocycle In Root Development And Stress Adaptation, Rahul Bhosale, Veronique Boudolf, Fabiola Cuevas, Ran Lu, Thomas Eekhout, Zhubing Hu, Gert Van Isterdael, Georgina M. Lambert, Fan Xu, Moritz K. Nowack, Richard S. Smith, Ilse Vercauteren, Riet De Rycke, Veronique Storme, Tom Beeckman, John C. Larkin, Anna Kremer, Herman Höfte, David W. Galbraith, Robert P. Kumpf, Steven Maere, Lieven De Veylder

Faculty Publications

© 2018 ASPB. Somatic polyploidy caused by endoreplication is observed in arthropods, molluscs, and vertebrates but is especially prominent in higher plants, where it has been postulated to be essential for cell growth and fate maintenance. However, a comprehensive understanding of the physiological significance of plant endopolyploidy has remained elusive. Here, we modeled and experimentally verified a high-resolution DNA endoploidy map of the developing Arabidopsis thaliana root, revealing a remarkable spatiotemporal control of DNA endoploidy levels across tissues. Fitting of a simplified model to publicly available data sets profiling root gene expression under various environmental stress conditions suggested that this …

Nkg2d Regulation Of Lung Pathology And Dendritic Cell Function Following Respiratory Syncytial Virus Infection, Huan Liu, Andrew R. Osterburg, Jennifer Flury, Shuo Huang, Francis X. Mccormack, Stephania A. Cormier, Michael T. Borchers

Faculty Publications

© The Author(s) 2018. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. Background. Respiratory syncytial virus (RSV) is a common cause of respiratory tract infection in vulnerable populations. Natural killer (NK) cells and dendritic cells (DC) are important for the effector functions of both cell types following infection. Methods. Wild-type and NKG2D-deficient mice were infected with RSV. Lung pathology was assessed by histology. Dendritic cell function and phenotype were evaluated by enzyme-linked immunosorbent assay and flow cytometry. The expression of NKG2D ligands on lung and lymph node DCs was measured by immunostaining and …

Impact Report, 2017-2018, Lsu Libraries

Libraries Impact Reports

No abstract provided.

Reducing Cardiovascular Disparities Through Community-Engaged Implementation Research: A National Heart, Lung, And Blood Institute Workshop Report, George A. Mensah, Richard S. Cooper, Anna Maria Siega-Riz, Lisa A. Cooper, Justin D. Smith, C. Hendricks Brown, John M. Westfall, Elizabeth O. Ofili, Leshawndra N. Price, Sonia Arteaga, Melissa C. Green Parker, Cheryl R. Nelson, Bradley J. Newsome, Nicole Redmond, Rebecca A. Roper, Bettina M. Beech, Jada L. Brooks, Debra Furr-Holden, Samson Y. Gebreab, Wayne H. Giles, Regina Smith James, Tené T. Lewis, Ali H. Mokdad, Kari D. Moore, Joseph E. Ravenell, Al Richmond, Nancy E. Schoenberg, Mario Sims, Gopal K. Singh, Anne E. Sumner, Roberto P. Treviño, Karriem S. Watson, M. Larissa Avilés-Santa

Faculty Publications

Cardiovascular disparities remain pervasive in the United States. Unequal disease burden is evident among population groups based on sex, race, ethnicity, socioeconomic status, educational attainment, nativity, or geography. Despite the significant declines in cardiovascular disease mortality rates in all demographic groups during the last 50 years, large disparities remain by sex, race, ethnicity, and geography. Recent data from modeling studies, linked micromap plots, and small-Area analyses also demonstrate prominent variation in cardiovascular disease mortality rates across states and counties, with an especially high disease burden in the southeastern United States and Appalachia. Despite these continued disparities, few large-scale intervention studies …

Reassessing The 1930s South, Jeff Crawford

Civil War Book Review

Within the text of the National Emergency Council’s 1938 Report on the Economic Conditions of the South, President Franklin Roosevelt wrote, “It is my conviction that the South presents right now the Nation’s No. 1 economic problem.” It is certainly powerful when a president broadly defines an entire region in a sentence. Probably for many Americans living outside the region Roosevelt’s simplistic generalization was conclusive. Many within the South resented that assessment as far too broad, offensively ignoring the region’s dynamic reality. Reassessing the 1930s South demonstrates the frailty of such a stark definition.

Kentucky’S Rebel Press: Pro-Confederate Media And The Secession Crisis, David A. Raney

Civil War Book Review

As the secession crisis yielded the bitter fruit of civil war in the spring of 1861, Abraham Lincoln understood well the multifaceted importance of the border states, including his native state of Kentucky. He is said to have remarked that, while he hoped that God was on his side, he needed Kentucky. Indeed, Union and Confederate partisans in and out of the state coveted Kentucky’s manufacturing capacity as well as its ability to provide military resources such as soldiers and draft animals. The state’s geographical position was vital as well. Kentucky offered a springboard for invasion of the North or …

Variation In ‘Bayou Belle’ And ‘Beauregard’ Sweetpotato Root Length In Response To Experimental Phosphorus Deficiency And Compacted Layer Treatments, Arthur Villordon, Jeffrey Cole Gregorie, Don Labonte, Awais Khan, Michael Selvaraj

Faculty Publications

Phosphorus deprivation (—P) reduced sweetpotato storage root length (SRL) regardless of the presence or absence of a compacted layer (CL). The combination of — P and the presence of a simulated compacted layer (+CL) reduced SRL relative to the P-sufficient (+P) control plants grown without a compacted layer (—CL) by 44% and 40%, respectively, in ‘Bayou Belle’ and ‘Beauregard’ cultivars. In both cultivars, the combination of — P and — CL also reduced SRL by 36% (‘Bayou Belle’) and 28% (‘Beauregard’) relative to the control plants. There was a significant planting date X cultivar effect in the temporal — P …

Looking At The Big Picture: Understanding How The Oviduct's Dialogue With Gametes And The Embryo Shapes Reproductive Success, Beatriz Fernandez-Fuertes, Beatriz Rodríguez-Alonso, José María Sánchez, Constantine A. Simintiras, Patrick Lonergan, Dimitrios Rizos

Faculty Publications

The oviduct is a tubular organ comprising three distinct anatomical regions (the infundibulum, the ampulla and the isthmus) connecting the ovary and the uterus. Oviductal function is regulated by ovarian hormones, gametes, and embryo-derived factors, for optimally facilitating key reproductive events. A cross-talk is established between the oviduct and the gametes and embryo and this dialogue shapes the microenvironment in which gamete transport, fertilization, and early embryonic development occur. This review aims to address each participant in this conversation in a holistic manner by delineating several advances in the field within the greater context of understanding how oviduct-gamete and oviduct-embryo …

Investigating The Role Of Mitochondrial Respiratory Dysfunction During Hexavalent Chromium-Induced Lung Carcinogenesis, James T.F. Wise, Lei Wang, Michael C. Alstott, Ntube N.O. Ngalame, Yuting Wang, Zhuo Zhang, Xianglin Shi

Faculty Publications

Hexavalent chromium [Cr(VI)] is a lung carcinogen and its complete mechanism of action remains to be investigated. Metabolic reprogramming of key energy metabolism pathways (e.g., increased anaerobic glycolysis in the presence of oxygen or “Warburg effect,” dysregulated mitochondrial function, and lipogenesis) are important to cancer cell and tumor survival and growth. In our current understanding of Cr(VI)-induced carcinogenesis, the role for metabolic reprogramming remains unclear. In this study, we treated human lung epithelial cells (BEAS-2B) with Cr(VI) for 6 months and obtained malignantly transformed cells from an isolated colony grown in soft agar. We also used Cr(VI)-transformed cells from two …

The Ethical Gap Of Firms’ Marketing Practices: A Comparison Between The Brazilian And French Markets, Fabio Lotti Oliva, Peter Kelle

Faculty Publications

Purpose: The corporate ethical behavior is a subject that instigates the reflection and practice of researchers and managers in general. Companies dedicate efforts to offer something valuable to society, making profits and usually doing it in compliance with the current legal system. Specifically in marketing activities, there is a higher potential for conflict between the business conduct and the expectations of society. The purpose of this paper is to analyze the ethical gap of the marketing activities of companies in the Brazilian and French markets. Design/methodology/approach: As a conceptual framework, the authors adopted the main theories on marketing activities, ethical …

Louisiana Survey 2018, Lsu Reilly Center For Media & Public Affairs

Reilly Center Louisiana Surveys

The 2018 Louisiana Survey is the seventeenth in an annual series sponsored by the Reilly Center for Media & Public Affairs at Louisiana State University’s Manship School of Mass Communication. The mission of the Louisiana Survey is to establish benchmarks as well as to capture change in residents’ assessments of state government services. The survey is further dedicated to tracking public opinion on the contemporary policy issues that face the state. Each iteration of the Louisiana Survey contains core items designed to serve as barometers of public sentiment, including assessments of whether the state is heading in the right direction …

Using Phase-Change Materials To Switch The Direction Of Reflectionless Light Propagation In Non-Pt-Symmetric Structures, Georgios Veronis, Yin Huang, Yuecheng Shen, Changjun Min

Faculty Publications

We introduce a non-parity-time-symmetric three-layer structure, consisting of a gain medium layer sandwiched between two phase-change medium layers for switching of the direction of reflectionless light propagation. We show that for this structure unidirectional reflectionlessness in the forward direction can be switched to unidirectional reflectionlessness in the backward direction at the optical communication wavelength by switching the phase-change material Ge2Sb2Te5 (GST) from its amorphous to its crystalline phase. We also show that it is the existence of exceptional points for this structure with GST in both its amorphous and crystalline phases which leads to unidirectional reflectionless propagation in the forward …

Effect Of Task Factors On The Heart Rate Recovery Time In A Lifting Task, Fereydoun Aghazadeh, Milad Amini

Faculty Publications

BACKGROUND: There is an extensive body of research reviewing the effect of task factors on the Maximum Acceptable Weight of Lift (MAWL) or heart beats elevation as a result of a manual material handling task. However, there are now studies that investigate the effect of task factors on the heart rate recovery time (HRR). OBJECTIVE: The purpose of the study was twofold: (1) to determine the HRR for a series of lifting tasks based on the activity heart rate and by using a set of task variables, (2) to compare the effect of three task factors on the HRR following …

Modeling A New Design For Extracting Energy From Geopressured Geothermal Reservoirs, Esmail Ansari, Richard Hughes, Christopher D. White

Faculty Publications

Reducing geothermal energy recovery costs and environmental concerns has led to interest in modeling new borehole heat exchanger designs. These heat exchangers are environment-friendly because they inject all the geofluid back into the reservoir after harvesting its energy, resulting in zero mass withdrawal from the system. This study develops reduced-order reservoir models for quickly estimating production temperature and thermal recovery from borehole heat exchangers using inspectional analysis and predictive modeling. An inspectional analysis suggests that there are nineteen dimensionless numbers necessary to fully scale this design. These dimensionless numbers were used in the statistical modeling. A Box–Behnken experimental design was …

Microfluidic Pore Model Study On Physical And Geomechanical Factors Influencing Fluid Flow Behavior In Porous Media, Shuang Cao

LSU Doctoral Dissertations

Fluid flow in porous media is a subject of fundamental importance and relevant to numerous engineering applications. The comprehensive description of fluid interaction parameters containing wetting properties, fluid-fluid displacement ratio, and capillary pressure, are inevitably needed. Moreover, the fine-grained sediments’ response to various pore fluids and migration in porous media influences reservoir geomechanical properties and pore clogging is essential to a better understanding of fluids flow behavior.

This dissertation provides a detailed study of physical and geomechanical factors influencing fluids flow behavior in porous media. The two-dimensional micromodel tests have been conducted under a wide selection of fluids flow conditions. …

Perchlorate-Coupled Carbon Monoxide (Co) Oxidation: Evidence For A Plausible Microbe-Mediated Reaction In Martian Brines, Marisa R. Myers, Gary M. King

Faculty Publications

© 2017 Myers and King. The presence of hydrated salts on Mars indicates that some regions of its surface might be habitable if suitable metabolizable substrates are available. However, several lines of evidence have shown that Mars' regolith contains only trace levels of the organic matter needed to support heterotrophic microbes. Due to the scarcity of organic carbon, carbon monoxide (CO) at a concentration of about 700 parts per million (about 0.4 Pa) might be the single most abundant readily available substrate that could support near-surface bacterial activity. Although a variety of electron acceptors can be coupled to CO oxidation, …

Context-Dependent Chemosensory Signaling, Aggression And Neural Activation Patterns In Gravid Female African Cichlid Fish, Karen E. Field, Karen P. Maruska

Faculty Publications

© 2017. Published by The Company of Biologists Ltd . Social animals must constantly assess their environment to make appropriate behavioral decisions. The use of various sensory modalities is imperative in this process and it is hypothesized that the highly conserved brain nuclei comprising the social decisionmaking network (SDMN) integrates social information with an animal's internal state to elicit behavioral responses. Here, we used the highly social African cichlid fish, Astatotilapia burtoni, to investigate whether reproductively receptive (gravid) females show contextual chemosensory signaling, social behaviors and neural activation patterns within the SDMN. We exposed gravid females to different social contexts: …

Global Awakening Of Cryptic Biosynthetic Gene Clusters In Burkholderia Thailandensis, Ashish Gupta, Renesh Bedre, Sudarshan Singh Thapa, Afsana Sabrin, Guannan Wang, Maheshi Dassanayake, Anne Grove

Faculty Publications

© 2017 American Chemical Society. Many bacteria encode biosynthetic proteins that produce a vast array of natural products. These compounds are often synthesized during host invasion as they function as virulence factors. In addition, such secondary metabolites have yielded numerous molecular scaffolds with pharmaceutical and clinical importance. The gene clusters that encode proteins responsible for synthesis of these compounds are typically silenced or "cryptic" under laboratory growth conditions, hampering discovery of novel lead compounds. We report here that MftR is a global repressor of secondary metabolite synthesis in Burkholderia thailandensis and that urate functions as a physiologically relevant inducer of …

Characterization Of Pathogenic Vibrio Parahaemolyticus From The Chesapeake Bay, Maryland, Arlene J. Chen, Nur A. Hasan, Bradd J. Haley, Elisa Taviani, Mitch Tarnowski, Kathy Brohawn, Crystal N. Johnson, Rita R. Colwell, Anwar Huq

Faculty Publications

Vibrio parahaemolyticus is the leading cause of bacterial gastroenteritis associated with seafood consumption in the United States. Here we investigated the presence of virulence factors and genetic diversity of V. parahaemolyticus isolated from water, oyster, and sediment samples from the Chesapeake Bay, Maryland. Of more than 2,350 presumptive Vibrio collected, more than half were confirmed through PCR as V. parahaemolyticus, with 10 encoding both tdh and trh and 6 encoding only trh. Potentially pathogenic V. parahaemolyticus were then serotyped with O1:KUT and O3:KUT predominant. Furthermore, pulsed-field gel electrophoresis was performed and the constructed dendrogram displayed high diversity, as did results …

Intramyocellular Lipid Droplet Size Rather Than Total Lipid Content Is Related To Insulin Sensitivity After 8 Weeks Of Overfeeding, Jeffrey D. Covington, Darcy L. Johannsen, Paul M. Coen, David H. Burk, Diana N. Obanda, Philip J. Ebenezer, Charmaine S. Tam, Bret H. Goodpaster, Eric Ravussin, Sudip Bajpeyi

Faculty Publications

© 2017 The Obesity Society Objective: Intramyocellular lipid (IMCL) is inversely related to insulin sensitivity in sedentary populations, yet no prospective studies in humans have examined IMCL accumulation with overfeeding. Methods: Twenty-nine males were overfed a high-fat diet (140% caloric intake, 44% from fat) for 8 weeks. Measures of IMCL, whole-body fat oxidation from a 24-hour metabolic chamber, muscle protein extracts, and muscle ceramide measures were obtained before and after the intervention. Results: Eight weeks of overfeeding did not increase overall IMCL. The content of smaller lipid droplets peripherally located in the myofiber decreased, while increases in larger droplets correlated …

Financial Engineering: Negative Interest Rate Policy And Quantitative Easing As Forms Of Alternative Monetary Policy, Calli A. Farrell

Honors Capstones

No abstract provided.

Challenges In Development Of Sperm Repositories For Biomedical Fishes: Quality Control In Small-Bodied Species, Leticia Torres, Yue Liu, Amy Guitreau, Huiping Yang, Terrence R. Tiersch

Faculty Publications

Quality control (QC) is essential for reproducible and efficient functioning of germplasm repositories. However, many biomedical fish models present significant QC challenges due to small body sizes (<5 >cm) and miniscule sperm volumes (<5 >μL). Using minimal volumes of sperm, we used Zebrafish to evaluate common QC endpoints as surrogates for fertilization success along sequential steps of cryopreservation. First, concentrations of calibration bead suspensions were evaluated with a Makler® counting chamber by using different sample volumes and mixing methods. For sperm analysis, samples were initially diluted at a 1:30 ratio with Hanks' balanced salt solution (HBSS). Motility was evaluated by …

Genome-Wide Microarray Analysis Leads To Identification Of Genes In Response To Herbicide, Metribuzin In Wheat Leaves, Whitney Pilcher, Hana Zandkamiri, Kelly Arceneaux, Stephen Harrison, Niranjan Baisakh

Faculty Publications

Herbicides are an important component of weed management in wheat, particularly in the southeastern US where weeds actively compete with wheat throughout the winter for nutrients and reduce tillering and ultimately the yield of the crop. Some wheat varieties are sensitive to metribuzin, a low-cost non-selective herbicide, leading to leaf chlorosis, stand loss, and decreased yield. Knowledge of the genetics of herbicide tolerance in wheat is very limited and most new varieties have not been screened for metribuzin tolerance. The identification of genes associated with metribuzin tolerance will lead to the development of molecular markers for use in screening breeding …

Newspaper Endorsements Of Candidates: Through The Looking Glass, Caitlin Burkes

Honors Capstones

No abstract provided.

Search For Neutron-Antineutron Oscillations At The Sudbury Neutrino Observatory, B. Aharmim, S. N. Ahmed, A. E. Anthony, N. Barros, E. W. Beier, A. Bellerive, B. Beltran, M. Bergevin, S. D. Biller, K. Boudjemline, M. G. Boulay, B. Cai, Y. D. Chan, D. Chauhan, M. Chen, B. T. Cleveland, G. A. Cox, X. Dai, H. Deng, J. A. Detwiler, P. J. Doe, G. Doucas, P. L. Drouin, F. A. Duncan, M. Dunford, E. D. Earle, S. R. Elliott, H. C. Evans

Faculty Publications

Tests on B-L symmetry breaking models are important probes to search for new physics. One proposed model with Δ(B-L)=2 involves the oscillations of a neutron to an antineutron. In this paper, a new limit on this process is derived for the data acquired from all three operational phases of the Sudbury Neutrino Observatory experiment. The search concentrated on oscillations occurring within the deuteron, and 23 events were observed against a background expectation of 30.5 events. These translated to a lower limit on the nuclear lifetime of 1.48×1031 yr at 90% C.L. when no restriction was placed on the signal likelihood …