Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2281 - 2310 of 8048

Full-Text Articles in Entire DC Network

Proximity Ligation Assay To Study Protein-Protein Interactions Of Proteins On Two Different Cells, Rushikesh Sable, Nithya Jambunathan, Sitanshu Singh, Sandeep Pallerla, Konstantin G. Kousoulas, Seetharama Jois Sep 2018

Proximity Ligation Assay To Study Protein-Protein Interactions Of Proteins On Two Different Cells, Rushikesh Sable, Nithya Jambunathan, Sitanshu Singh, Sandeep Pallerla, Konstantin G. Kousoulas, Seetharama Jois

Faculty Publications

© 2018 Future Science. All rights reserved. Protein-protein interactions (PPI) by homo-, hetero- or oligo-merization in the cellular environment regulate cellular processes. PPI can be inhibited by antibodies, small molecules or peptides, and this inhibition has therapeutic value. A recently developed method, the proximity ligation assay (PLA), provides detection of PPI in the cellular environment. However, most applications using this assay are for proteins expressed in the same cell. We employ PLA for the first time to study PPI of cell surface proteins on two different cells. Inhibition of PPI using a peptide inhibitor is also quantified using this assay; …

Go to article

Effective Maxwell’S Equations For Perfectly Conducting Split Ring Resonators, Robert Lipton, Ben Schweizer Sep 2018

Effective Maxwell’S Equations For Perfectly Conducting Split Ring Resonators, Robert Lipton, Ben Schweizer

Faculty Publications

We analyze the time harmonic Maxwell’s equations in a geometry containing perfectly conducting split rings. We derive the homogenization limit in which the typical size η of the rings tends to zero. The split rings act as resonators and the assembly can act, effectively, as a magnetically active material. The frequency dependent effective permeability of the medium can be large and/or negative.

Go to article

Correction To: Emplaced Social Vulnerability To Technological Disasters: Southeast Louisiana And The Bp Deepwater Horizon Oil Spill (Population And Environment, (2017), 38, 3, (217-241), 10.1007/S11111-016-0257-8), Michael R. Cope, Tim Slack Sep 2018

Correction To: Emplaced Social Vulnerability To Technological Disasters: Southeast Louisiana And The Bp Deepwater Horizon Oil Spill (Population And Environment, (2017), 38, 3, (217-241), 10.1007/S11111-016-0257-8), Michael R. Cope, Tim Slack

Faculty Publications

The original version of this article inadvertently did not include the following acknowledgement of funding: Funding information This research was made possible by a grant from The Gulf of Mexico Research Initiative (GoMRI). Data are publicly available through the Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC) at https://data.gulfresearchinitiative.org (doi: https://doi. org/10.7266/N7T72FDS, https://doi.org/10.7266/N7PG1PP2, https://doi.org/10.7266/N7JQ0XZB, https://doi.org/10.7266/N7DZ068V).

Go to article

Zoorate: Certifying Online Consumer Reviews To Create Value, Marcin Lukasz Bartosiak, Federico Pigni, Gabriele Piccoli Sep 2018

Zoorate: Certifying Online Consumer Reviews To Create Value, Marcin Lukasz Bartosiak, Federico Pigni, Gabriele Piccoli

Faculty Publications

Zoorate emerged from its cofounders’ ambition to develop a Web portal for aggregating product reviews. The company’s core product, Feedaty, had evolved from a platform that matched reviewers by affinity into a full-fledged platform for aggregating and certifying consumer feedback. Specifically targeting online sellers and merchants, Zoorate continually increased its client based and signed up more than 1,000 customers by 2017. Supported by the strategic partnership and synergies with its shareholder 7Pixel Srl, the firm appeared to have finally set sail for success. However, several challenges lay ahead. The main competitors continued to grow in strength internationally and increasingly challenged …

Go to article

The Mayer And Minimum Time Problems With Stratified State Constraints, C. Hermosilla, P. R. Wolenski, H. Zidani Sep 2018

The Mayer And Minimum Time Problems With Stratified State Constraints, C. Hermosilla, P. R. Wolenski, H. Zidani

Faculty Publications

This paper studies optimal control problems with state constraints by imposing structural assumptions on the constraint domain coupled with a tangential restriction with the dynamics. These assumptions replace pointing or controllability assumptions that are common in the literature, and provide a framework under which feasible boundary trajectories can be analyzed directly. The value functions associated with the state constrained Mayer and minimal time problems are characterized as solutions to a pair of Hamilton-Jacobi inequalities with appropriate boundary conditions. The novel feature of these inequalities lies in the choice of the Hamiltonian.

Go to article

Near-Infrared Photothermal Release Of Sirna From The Surface Of Colloidal Gold-Silver-Gold Core-Shell-Shell Nanoparticles Studied With Second-Harmonic Generation, Raju R. Kumal, Mohammad Abu-Laban, Prakash Hamal, Blake Kruger, Holden T. Smith, Daniel J. Hayes, Louis H. Haber Aug 2018

Near-Infrared Photothermal Release Of Sirna From The Surface Of Colloidal Gold-Silver-Gold Core-Shell-Shell Nanoparticles Studied With Second-Harmonic Generation, Raju R. Kumal, Mohammad Abu-Laban, Prakash Hamal, Blake Kruger, Holden T. Smith, Daniel J. Hayes, Louis H. Haber

Faculty Publications

© 2018 American Chemical Society. Photothermal release of oligonucleotides from the surface of plasmonic nanoparticles represents a promising platform for spatiotemporal controlled drug delivery. Here we demonstrate the use of novel gold-silver-gold core-shell-shell (CSS) nanoparticles to study the photothermal cleaving and release of micro-RNA (miRNA) mimics or small interfering RNA (siRNA) under near-infrared (NIR) irradiation. The furan-maleimide-based Diels-Alder adduct cleaves thermally above 60 °C and is used to bind siRNA to the colloidal nanoparticle surface in water. We investigate the photothermal cleaving kinetics of siRNA under different NIR laser powers using surface-sensitive time-dependent second-harmonic generation (SHG) spectroscopy. The photothermal release …

Go to article

Investigation Of Flow Mechanisms In Gas-Assisted Gravity Drainage Process, Iskandar Dzulkarnain Aug 2018

Investigation Of Flow Mechanisms In Gas-Assisted Gravity Drainage Process, Iskandar Dzulkarnain

LSU Doctoral Dissertations

In this study we investigate displacement mechanism for oil recovered using Gas- Assisted Gravity Drainage (GAGD) method. For a typical oil recovery under gravity drainage, the recovery profile can be characterized by an initial bulk flow which occurs rapidly and a later film flow that extends for a longer duration. It is the latter period where film spreading, the ability of oil to spread above water in the presence of gas, is identified as the displacement mechanism responsible for recovering the remaining oil in gravity drainage process. Literature survey indicates that mathematical models for gravity drainage do not account for …

Go to article

Similarities And Differences In Western Media Portrayals Of The Greek Economic Crisis: A Qualitative Analysis Of The Guardian And The New York Times' Summer 2015 Coverage Of The Greek Economic Crisis, Tryfon Boukouvidis Aug 2018

Similarities And Differences In Western Media Portrayals Of The Greek Economic Crisis: A Qualitative Analysis Of The Guardian And The New York Times' Summer 2015 Coverage Of The Greek Economic Crisis, Tryfon Boukouvidis

LSU Master's Theses

This study examines newspaper coverage of the Greek economic crisis in the summer of 2015 by exploring attribution of responsibility to the actors involved in the crisis. I performed a qualitative content analysis on 114 news stories, 59 from The Guardian and 55 from The New York Times. Prior literature has indicated that American newspapers tend to present economic crisis from an elite perspective, which could distort public opinion to reflect elite views. Following previous studies, I analyzed the news stories in terms of how they used the responsibility frame of coverage of the Greeks and their creditors. The …

Go to article

Investigation Of Flow Mechanisms In Gas-Assisted Gravity Drainage Process, Iskandar Dzulkarnain Aug 2018

Investigation Of Flow Mechanisms In Gas-Assisted Gravity Drainage Process, Iskandar Dzulkarnain

LSU Doctoral Dissertations

In this study we investigate displacement mechanism for oil recovered using Gas- Assisted Gravity Drainage (GAGD) method. For a typical oil recovery under gravity drainage, the recovery profile can be characterized by an initial bulk flow which occurs rapidly and a later film flow that extends for a longer duration. It is the latter period where film spreading, the ability of oil to spread above water in the presence of gas, is identified as the displacement mechanism responsible for recovering the remaining oil in gravity drainage process. Literature survey indicates that mathematical models for gravity drainage do not account for …

Go to article

Development Strategies For A Fractured, Heavy Oil Reservoir - Results From Numerical Simulations, German Albertovich Abzaletdinov Aug 2018

Development Strategies For A Fractured, Heavy Oil Reservoir - Results From Numerical Simulations, German Albertovich Abzaletdinov

LSU Master's Theses

This research is focused on studying reservoir “N” in the Yarega heavy oilfield (YHOF) for development strategies and production optimization. YHOF is a naturally fractured heavy oil field where only very recently SAGD technology has been introduced. The motivation for this research is derived from the fact that SAGD employed in this field has so far resulted in early steam breakthrough leading to producer abandonment and new drilling, thus increasing costs. This study explores numerically different static and dynamic reservoir characterization models (single porosity versus dual porosity systems), and subsequent pressure-production history matched reservoir simulation for understanding heat and mass …

Go to article

Direct Quantification Of Deubiquitinating Enzyme Activity In Single Intact Cells, Nora Safabakhsh Aug 2018

Direct Quantification Of Deubiquitinating Enzyme Activity In Single Intact Cells, Nora Safabakhsh

LSU Doctoral Dissertations

Challenges in drug efficacy occur during the treatment of most types of cancer due to the heterogeneity of the tumor microenvironment. This has led to the development of personalized medicine. Due to the clinical success of the proteasome inhibitors Bortezomib and Carfilzomib in treatment of multiple myeloma, interest has shifted towards molecularly-targeted chemotherapeutics for ubiquitin-proteasome system (UPS). Deubiquitinating enzymes (DUBs) are an essential part of this pathway which have been found to promote Bortezomib resistance in multiple myeloma patients. Unfortunately, there is a lack of specific, high throughput biochemical assays to characterize DUB activity in patient samples before and after …

Go to article

Will To Remember: Counter-Archives In The Work Of Alvarez, Danticat, And Díaz, Megan Elizabeth Feifer Aug 2018

Will To Remember: Counter-Archives In The Work Of Alvarez, Danticat, And Díaz, Megan Elizabeth Feifer

LSU Doctoral Dissertations

This dissertation argues the essays, fiction, non-fiction, and non-profit work of authors Julia Alvarez, Edwidge Danticat, and Junot Díaz produce counter-narratives that when assembled, create a counter-archive of the Rafael Leonidas Trujillo dictatorship and its lasting effects. To support this claim, I analyze the various genres and medias they employ throughout the late 20thand early 21st centuries as redressing not only the “official” state history of the dictatorship, but also the overarching construction of history with a capital “H”. Through a close reading of form and the thematic concerns present in their work, I demonstrate how they …

Go to article

The Power Of Pictures: Drawing On Visual Sign-Systems To Teach Inference In Gerstein’S The Man Between Two Towers, Shannon Howrey Aug 2018

The Power Of Pictures: Drawing On Visual Sign-Systems To Teach Inference In Gerstein’S The Man Between Two Towers, Shannon Howrey

The Journal of Balanced Literacy Research and Instruction

The ability to infer while reading is a critical part of meaning-making. Readers who infer go beyond the literal words on the page by adding information to the text and making implicit connections between the text and their prior knowledge (Barr, Blacowicz, Bates, Katz, & Kaufman, 2013). This skill allows them to establish causal relationships between story events, connect the events to their personal experiences, and determine relationships, motivations, and emotions within and between characters. Drawing on dual coding theory and visual literacy principles, the author demonstrates how the lines in the illustrations of The Man Between Two Towers assist …

Go to article

What Counts As Common Core Aligned? An Examination Of A Reading Program's Agreement With The Common Core State Standards, Kim Skinner, Alecia Tate, Emily France, Gina Stocks Aug 2018

What Counts As Common Core Aligned? An Examination Of A Reading Program's Agreement With The Common Core State Standards, Kim Skinner, Alecia Tate, Emily France, Gina Stocks

The Journal of Balanced Literacy Research and Instruction

Passage and implementation of the Common Core State Standards (CCSS) created numerous difficulties for educational stakeholders. One such difficulty, determining the alignment of previously utilized curricula to the CCSS, forced many states, districts, and schools into purchasing “new” curricular resources marketed as “Common Core Aligned” without any available auditing process to validate the claims made by publishers. Since initial implementation of CCSS, measures for determining alignment have been developed. This study examined the alignment of a widely used reading program, Adventures Common Core (pseudonym), to the Common Core State Standards using a modified version of the Educators Evaluating the Quality …

Go to article

17.3 Full Issue, Taboo Journal Aug 2018

17.3 Full Issue, Taboo Journal

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

Dark Water: Rememory, Biopower, And Black Feminist Art, Stephanie Troutman, Brenna Johnson Aug 2018

Dark Water: Rememory, Biopower, And Black Feminist Art, Stephanie Troutman, Brenna Johnson

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

The Spaces In Between: Foreign Language Education As Critical And Intercultural Education, Paola Giorgis Aug 2018

The Spaces In Between: Foreign Language Education As Critical And Intercultural Education, Paola Giorgis

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

Cloned This Way: Emphatic Dissonance And Mixed Messages In The Representations Of Non-Heterosexual Sex Acts In Three Television Series, Vincent W. Youngbauer, Joseph Jones Aug 2018

Cloned This Way: Emphatic Dissonance And Mixed Messages In The Representations Of Non-Heterosexual Sex Acts In Three Television Series, Vincent W. Youngbauer, Joseph Jones

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

Don Draper,Teacher-As-Artist: A Diffractive Reading Of Mad Men, Gabriel Huddleston, Sam Rocha Aug 2018

Don Draper,Teacher-As-Artist: A Diffractive Reading Of Mad Men, Gabriel Huddleston, Sam Rocha

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

Culturally Responsive Teaching Across Pk-20: Honoring The Historical Naming Practices Of Students Of Color, Norma Angelica Marrun Aug 2018

Culturally Responsive Teaching Across Pk-20: Honoring The Historical Naming Practices Of Students Of Color, Norma Angelica Marrun

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

Introduction: Issue 17.3, Kenneth Varner, David Lee Carlson Aug 2018

Introduction: Issue 17.3, Kenneth Varner, David Lee Carlson

Taboo: The Journal of Culture and Education

No abstract provided.

Go to article

Structure Based Modulation Of Electron Dynamics In Meso-(4-Pyridyl)-Bodipys: A Computational And Synthetic Approach, Daniel J. Lamaster, Nichole E.M. Kaufman, Adam S. Bruner, M. Graça H. Vicente Aug 2018

Structure Based Modulation Of Electron Dynamics In Meso-(4-Pyridyl)-Bodipys: A Computational And Synthetic Approach, Daniel J. Lamaster, Nichole E.M. Kaufman, Adam S. Bruner, M. Graça H. Vicente

Faculty Publications

© 2018 American Chemical Society. The effects of structural modification on the electronic structure and electron dynamics of cationic meso-(4-pyridyl)-BODIPYs were investigated. A library of 2,6-difunctionalized meso-(4-pyridyl)-BODIPYs bearing various electron-withdrawing substituents was designed, and DFT calculations were used to model the redox properties, while TDDFT was used to determine the effects of functionalization on the excited states. Structural modification was able to restructure the low-lying molecular orbitals to effectively inhibit d-PeT. A new meso-(4-pyridyl)-BODIPY bearing 2,6-dichloro groups was synthesized and shown to exhibit enhanced charge recombination fluorescence. The fluorescence enhancement was determined to be the result of functionalization modulating the …

Go to article

Local Vs. National: How Twitter Reflects News Coverage Of Colin Kaepernick Protests, Jared Paul Joseph Aug 2018

Local Vs. National: How Twitter Reflects News Coverage Of Colin Kaepernick Protests, Jared Paul Joseph

LSU Master's Theses

Local and national media dedicate different levels of coverage to issues depending on its relevancy to their audiences. This study uses news outlets’ social media activity to show that coverage discrepancies occurred with former NFL quarterback Colin Kaepernick’s National Anthem protest. Because his protest reached national headlines, Kaepernick suffered the same fate of many protesting athletes in the past. This study will show how national media carried his story to national headlines and framed his protest negatively. The findings show that local media were the least active among the three media levels, local, regional and national, in covering the Kaepernick …

Go to article

Improved Growth Estimates For Lethrinus Harak: Measuring Increments, Adjusting Ages, And Fitting Flexible Growth Models, Stephen Midway Aug 2018

Improved Growth Estimates For Lethrinus Harak: Measuring Increments, Adjusting Ages, And Fitting Flexible Growth Models, Stephen Midway

Faculty Publications

No abstract provided.

Go to article

The 6xabre Synthetic Promoter Enables The Spatiotemporal Analysis Of Aba-Mediated Transcriptional Regulation, Rui Wu, Lina Duan, José L. Pruneda-Paz, Dong Ha Oh, Michael Pound, Steve Kay, José R. Dinneny Aug 2018

The 6xabre Synthetic Promoter Enables The Spatiotemporal Analysis Of Aba-Mediated Transcriptional Regulation, Rui Wu, Lina Duan, José L. Pruneda-Paz, Dong Ha Oh, Michael Pound, Steve Kay, José R. Dinneny

Faculty Publications

© 2018 American Society of Plant Biologists. All rights reserved. The water stress-associated hormone abscisic acid (ABA) acts through a well-defined signal transduction cascade to mediate downstream transcriptional events important for acclimation to stress. Although ABA signaling is known to function in specific tissues to regulate root growth, little is understood regarding the spatial pattern of ABA-mediated transcriptional regulation. Here, we describe the construction and evaluation of an ABSCISIC ACID RESPONSIVE ELEMENT (ABRE)-based synthetic promoter reporter that reveals the transcriptional response of tissues to different levels of exogenous ABA and stresses. Genome-scale yeast one-hybrid screens complemented these approaches and revealed …

Go to article

Oxytocin Receptor Is Regulated By Peg3, Wesley D. Frey, Kaustubh Sharma, Terri L. Cain, Katsuhiko Nishimori, Ryoichi Teruyama, Joomyeong Kim Aug 2018

Oxytocin Receptor Is Regulated By Peg3, Wesley D. Frey, Kaustubh Sharma, Terri L. Cain, Katsuhiko Nishimori, Ryoichi Teruyama, Joomyeong Kim

Faculty Publications

© 2018 Frey et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Mouse Peg3 encodes a DNA-binding protein involved in the milk letdown process. In the current study, we tested whether PEG3 controls the expression of the oxytocin receptor gene. According to the results, PEG3 directly binds to a genomic region within the 3rd exon of Oxtr, which contains a DNA-binding motif for PEG3. In nursing female mice, removal of PEG3 resulted in …

Go to article

Emodel-Bdb: A Database Of Comparative Structure Models Of Drug-Target Interactions From The Binding Database, Misagh Naderi, Rajiv Gandhi Govindaraj, Michal Brylinski Aug 2018

Emodel-Bdb: A Database Of Comparative Structure Models Of Drug-Target Interactions From The Binding Database, Misagh Naderi, Rajiv Gandhi Govindaraj, Michal Brylinski

Faculty Publications

Background: The structural information on proteins in their ligand-bound conformational state is invaluable for protein function studies and rational drug design. Compared to the number of available sequences, not only is the repertoire of the experimentally determined structures of holo-proteins limited, these structures do not always include pharmacologically relevant compounds at their binding sites. In addition, binding affinity databases provide vast quantities of information on interactions between drug-like molecules and their targets, however, often lacking structural data. On that account, there is a need for computational methods to complement existing repositories by constructing the atomic-level models of drug-protein assemblies that …

Go to article

Exit-Time Of Granular Media Equation Starting In A Local Minimum, Julian Tugaut Aug 2018

Exit-Time Of Granular Media Equation Starting In A Local Minimum, Julian Tugaut

Communications on Stochastic Analysis

No abstract provided.

Go to article

Evaluation Of Commercial-Scale Approaches For Cryopreservation Of White Crappie, Pomoxis Annularis, Sperm, Charlie M. Culpepper, Amy M. Guitreau, Shay Allred, Terrence R. Tiersch, Peter J. Allen Aug 2018

Evaluation Of Commercial-Scale Approaches For Cryopreservation Of White Crappie, Pomoxis Annularis, Sperm, Charlie M. Culpepper, Amy M. Guitreau, Shay Allred, Terrence R. Tiersch, Peter J. Allen

Faculty Publications

Crappie, Pomoxis spp., are popular game fish throughout North America and are produced by public and private hatcheries. However, production is limited by a lack of information on tank culture and induced spawning methods. Development of techniques for storage of sperm and in vitro fertilization would increase flexibility in spawning. Therefore, techniques for sperm cryopreservation were examined in white crappie, Pomoxis annularis. Sperm from adult wild white crappie were used to evaluate sperm extender, cryoprotectant agent and concentration, and cooling technique based on post-thaw sperm motility. Percent egg fertilization was also compared between sperm stored in the two best cryopreservation …

Go to article

Biochar Produced From Mineral Salt-Impregnated Chicken Manure: Fertility Properties And Potential For Carbon Sequestration, Ran Xiao, Jim J. Wang, Lewis A. Gaston, Baoyue Zhou, Jong Hwan Park, Ronghua Li, Syam K. Dodla, Zengqiang Zhang Aug 2018

Biochar Produced From Mineral Salt-Impregnated Chicken Manure: Fertility Properties And Potential For Carbon Sequestration, Ran Xiao, Jim J. Wang, Lewis A. Gaston, Baoyue Zhou, Jong Hwan Park, Ronghua Li, Syam K. Dodla, Zengqiang Zhang

Faculty Publications

In this study, nutrient properties and carbon sequestration potential of biochars derived from chicken manure (CM) impregnated with mineral salts (calcium chloride, magnesium chloride, ferric chloride) were evaluated. Pretreatment with mineral salts reduced phosphorus (P) availability via the formation of insoluble metal phosphate minerals. Less carbon was lost during the pyrolysis of pretreated CM, and the produced biochars (BCCa, BCMg, and BCFe) were more stable (i.e., reduced C loss during chemical oxidation and less CO2 release during incubation) than pristine biochars. Spectroscopic evidence indicated that enhanced biochar stability via metal salt pretreatment before pyrolysis was related to increased aromatization and …

Go to article

First Prev Next Last