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Generation Of A Retroviral Vector That Expresses An Anti-Hiv-1 Tat Hammerhead Ribozyme, Lindsey E. Padgett, William H. Jackson

Journal of the South Carolina Academy of Science

No abstract provided.

Effect Of Thaw Temperature On Murine Blastocyst Development, Heather M. Barton, H. Lee Higdon Iii, Ph.D., Jennifer E. Graves-Herring M.S., William R. Boone, Ph.D.

Journal of the South Carolina Academy of Science

No abstract provided.

The Effects Of Growing Method And The Food Processing System On Bacterial Concentration In Spinach, Thad S. Moore, Lisa W. Norman

Journal of the South Carolina Academy of Science

No abstract provided.

Modern Performance Trends In Bach's Sacred Music : Changing Tastes In The Performance Of Bach's Weihnachtsoratorium : An Exploration Of The Rhetorical Style, Sam Nester

Theses : Honours

This dissertation investigates changing tastes in the performance practice of Johann Sebastian Bach's sacred music from the second decade of the Twentieth Century to the present day. In particular I focus on the 'rhetorical style', and offer a comparative study of four recordings of Bach's Weihnachtsoratoritmt (Christmas Oratorio) BWV 248 by Harnoncourt (1973), Gardiner (1987), Jacobs (1997), and Suzuki (1998). Though all of these interpretations would be categorised as being in the 'rhetorical style', I attempt to show that within this classification there exists a multiplicity of performance approaches.

A Note On The Application Of Ec2sls And Ec3sls Estimators In Panel Data Models, Badi H. Baltagi, Long Liu

Center for Policy Research

Baltagi and Li (1992) showed that for estimating a single equation in a simultaneous panel data model, EC2SLS has more instruments than G2SLS. Although these extra instruments are redundant in White (1986) terminology, they may yield different estimates and standard errors in empirical studies with finite N and T. We illustrate this using the crime data of Cornwell and Trumbull (1994). We show that the standard errors of EC2SLS are smaller than those of G2SLS for this example. In general, we prove that the asymptotic variance of G2SLS differs from that of EC2SLS by a positive semi-definite matrix. Although this …

Improved Seismic Isolation For The Laser Interferometer Gravitational Wave Observatory With Hydraulic External Pre-Isolator System, Shyang Wen

LSU Doctoral Dissertations

LIGO hosts the world’s most sensitive GW detectors capable of detecting strain of h=10-22 at 100-200Hz. To maximize the amount of useful scientific results LIGO generates, it is necessary to operate the instrument uninterruptedly. However, for ground-based detectors, this is not possible without isolating it from the environmental disturbances, which in most cases is predominated by seismic noise. We examined the recent seismic noise records at LLO and LHO, and found the seismic noise at both sites had decreased from Oct. 1, 2003 to Oct. 1, 2006. No long term trend can be derived from the there-year data studied, however …

Numerical Modeling For Long Term Performance Of Soil-Bentonite Cut-Off Walls In Unsaturated Soil Zone, Sukanta Chakraborty

LSU Master's Theses

ABSTRACT The construction practices of containment walls are extremely important in this competitive economic market, but development is limited. Unsaturated zone is an integral part of the geotechnical problems, as it affects on any kind of soils structures. The unsaturated zone plays significant role in many aspects of water flow and contaminant transport, including containment system such as: cut-off walls, infiltration, soil moisture storage, evaporation, plant water uptake, ground water recharge, erosion, and runoff. This research focuses on the hydraulic sustainability and performance of soil-bentonite cutoff walls (Britton et al, 2004) models showing hydraulic behavior of barrier walls. The cutoff …

Historic Sediment Accretion Rates In A Louisiana Coastal Marsh And Implications For Sustainability, Rebekah Perkins Smith

LSU Master's Theses

Deltaic marshes of the Mississippi River in Louisiana disappeared at a rate of 88 km2 annually from 1956 to 2000 (Barras et al. 2003) as marshes become inundated by sea water. Marsh surface elevation varies spatially and temporally due to fluvial sediment deposition, resuspension, erosion, compaction, sea level rise, and organic matter accumulation and decomposition. If net accretion from sediment deposition and/or peat production is insufficient, marshes respond to sea level rise by migrating landward. Since human development prevents landward migration of marsh in Breton Sound Basin, Louisiana, marsh sustainability can only be achieved if vertical accretion keeps pace with …

A Comparative Study Of Geometry Curricula, Robyn Williams Carlin

LSU Master's Theses

In the United States, geometry has long been offered to high school students in the tenth grade. Attempts have been made in recent years to expand the role of geometry across grades Pre-K through twelve. However, based on the latest TIMSS results, although students in the United States made gains in most content areas, they still struggle with geometric concepts compared to their counterparts in other nations of the world, primarily those in certain Asian countries like Singapore and China. We argue that the structure of the curriculum and the instructional strategies used in these countries may lead to more …

A Social Vulnerability-Based Genetic Algorithm To Locate-Allocate Transit Bus Stops For Disaster Evacuation In New Orleans, Louisiana, Xiaojun Qin

LSU Master's Theses

In the face of severe disasters, some or all of the endangered residents must be evacuated to a safe place. A portion of people, due to various reasons (e.g., no available vehicle, too old to drive), will need to take public transit buses to be evacuated. However, to optimize the operation efficiency, the location of these transit pick-up stops and the allocation of the available buses to these stops should be considered seriously by the decision-makers. In the case of a large number of alternative bus stops, it is sometimes impractical to use the exhaustive (brute-force) search to solve this …

Capillary Electrophoretic Separations Of Enzyme Inhibitors With Activity-Based Detection, Xiaoyan Yan

LSU Master's Theses

A technique for separating and detecting enzyme inhibitors was developed using capillary electrophoresis with an enzyme microreactor. The on-column enzyme microreactor was constructed using one or two NdFeB magnets in two configurations to immobilize alkaline phosphatase-coated superparamagnetic beads with diameters of 2.8 µm inside a capillary before the detection window. Enzyme inhibition assays were performed by injecting a plug of inhibitor into a capillary filled with an alkaline phosphatase substrate, AttoPhos. Product generated in the enzyme microreactor was detected by laser-induced fluorescence. Inhibitor zones electrophoresed through the capillary, passed through the enzyme microreactor, and were observed as negative peaks due …

Oil Platforms And Red Snapper Movement And Behavior, Michael Mcdonough

LSU Master's Theses

Understanding the behavior, including movement, of red snapper (Lutjanus campechanus), around and among the many oil and gas platforms in the northern Gulf of Mexico (GOM) is crucial to the management of this important commercial and recreational species. What role oil and gas production platforms play in the attraction vs. production continuum for red snapper is unknown, but it is certain these large structures have a role at some life history stage. We used the VRAP acoustic telemetry system to track red snapper around two platforms in the GOM in 2005 and 2006. Fish detections per hour generally decreased over …

Unionoida (Mollusca: Margaritiferidae, Unionidae) In Arkansas, Third Status Review, John L. Harris, William R. Posey Ii, C. L. Davidson, Jerry L. Farris, S. R. Oetker, J. N. Stoeckel, B. G. Crump, M. S. Barnett, H. C. Martin, J. H. Seagraves, M. W. Matthews, R. Winterringer, C. Osborne, Alan D. Christian, N. J. Wentz

Journal of the Arkansas Academy of Science

We analyzed stream inventories, phylogeographic studies, community and population estimates, life history and reproductive biology research, and suitable habitat investigations conducted from 1997-2008, as well as the Arkansas Natural Heritage Commission mussel database, to update the conservation status for all native freshwater unionoid bivalves thought to occur in Arkansas. Prior to this study, Harris et al. (1997) reviewed the distribution and status of 75 freshwater mussels considered native to Arkansas and ranked 22 species as endangered, threatened or special concern. We now recognize 85 mussel taxa in Arkansas; however, some of those have yet to be described or their nomenclature …

Développement D'Une Approche Pour Estimer La Résistance Des Roches Dures À L'Échelle Du Bloc Unitaire, Richard Simon, Desheng Deng

Rapports de recherche scientifique

Une campagne d’essais a été réalisée sur trois sites (40 m, 70 m et 130 m) de la mine laboratoire de CANMET à Val-d’Or, Québec afin d’estimer la résistance en compression uniaxiale à l’échelle du bloc unitaire. Des forages au diamant de différents calibres (AQ, BQ, NQ et HQ) ont été réalisés parallèlement à chacun des sites étudiés. Les carottes de forage récupérées ont ensuite été testées en laboratoire en compression uniaxiale avec mesure du module de déformation.

Les résultats des essais ont montré une réduction de la résistance moyenne variant de 14 à 30% et du module de déformation …

Développement D’Une Méthode Intégrée D’Analyse De Stabilité Des Chantiers Miniers Remblayés, Tikou Belem, Michel Aubertin, Li Li, Mamadou Fall

Rapports de recherche scientifique

Lorsque la méthode de minage employée nécessite l’utilisation du remblai cimenté en pâte (RCP), il est nécessaire de concevoir un système de remblayage adéquat qui fournira la stabilité structurale requise et la garantie d’un espace sécuritaire à la fois pour les travailleurs et les équipements miniers. Dans la majorité des cas, les ingénieurs en contrôle de terrain utilisent régulièrement le modèle du bloc confiné, combiné avec un facteur de sécurité (FS) élevé, pour l’estimation de la résistance requise pour le RCP. Une fois cette résistance – qui est la résistance en compression uniaxiale (UCS) – connue, …

Développement D’Un Outil D’Aide À La Conception Acoustique D’Encoffrements De Machines, Franck Sgard, Hugues Nélisse, Noureddine Atalla, Nicolas Trompette, Jean-Louis Barbry

Rapports de recherche scientifique

Un grand nombre d'individus sont exposés à des niveaux de bruits dangereux pour leur système auditif. Si l’on s’en tient à la limite légale d’exposition au bruit de 90 dB(A) 8 heures par jour, le nombre de travailleurs et travailleuses à risque de perdre l’audition au Québec est estimé à 400 000 (Fédération des travailleurs et travailleuses du Québec 1998), soit environ un travailleur sur cinq, et ce nombre atteint 500 000 (Commission de la santé et de la sécurité au travail 1998) si l’on prend la limite de 85 dB(A) recommandée internationalement. La mise en place d’un encoffrement qui …

Arrow's Theorem And The Exclusive Shareholder Franchise, Grant M. Hayden, Matthew T. Bodie

All Faculty Scholarship

In this essay, we contest one of the main arguments for restricting corporate board voting to shareholders. In justifying the limitation of the franchise to shareholders, scholars have repeatedly turned to social choice theory—specifically, Arrow’s theorem—to justify the exclusive shareholder franchise. Citing to the theorem, corporate law commentators have argued that lumping different groups of stakeholders together into the electorate would result in a lack of consensus and, ultimately, the lack of coherence that attends intransitive social choices, perhaps even leading the corporation to self-destruct. We contend that this argument is misguided. First, we argue that scholars have greatly overestimated …

Shareholders In The Jury Box: A Populist Check Against Corporate Mismanagement, Ann M. Scarlett

All Faculty Scholarship

The recent subprime mortgage disaster exposed corporate officers and directors who mismanaged their corporations, failed to exercise proper oversight, and acted in their self-interest. Two previous waves of corporate scandals in this decade revealed similar misconduct. After the initial scandals, Congress and the Securities and Exchange Commission attempted to prevent the next crisis in corporate governance through legislative and regulatory actions such as the Sarbanes-Oxley Act of 2002. Those attempts failed. Shareholder derivative litigation has also failed because judges accord corporate executives great deference and thus rarely impose liability for breaches of fiduciary duties.

To prevent the next crisis in …

Clawbacks: Prospective Contract Measures In An Era Of Excessive Executive Compensation And Ponzi Schemes, Miriam A. Cherry, Jarrod Wong

All Faculty Scholarship

In the spring of 2009, public outcry erupted over the multi-million dollar bonuses paid to AIG executives even as the company was receiving TARP funds. Various measures were proposed in response, including a 90% retroactive tax on the bonuses, which the media described as a "clawback." Separately, the term "clawback" was also used to refer to remedies potentially available to investors defrauded in the multi-billion dollar Ponzi scheme run by Bernard Madoff. While the media and legal commentators have used the term "clawback" reflexively, the concept has yet to be fully analyzed. In this article, we propose a doctrine of …

Effect Of The Regiochemistry Of Butyl Amide Substituents On The Solution-State Structures Of Lanthanide(Iii) Dota-Tetraamide Complexes, Tomoyasu Mani, Gyula Tircsó, Piyu Zhao, A. Dean Sherry, Mark Woods

Chemistry Faculty Publications and Presentations

The coordination geometry adopted by the lanthanide complexes of DOTA-tetraamides is a critical factor in determining their water exchange kinetics. Controlling the water exchange kinetics of DOTA-tetraamide complexes, and by extension their coordination geometry, is of particular interest because of the potential application of this class of complex as PARACEST MRI contrast agents. To facilitate the maximum CEST effect at the lowest pre-saturation powers much slower exchange kinetics are required than are commonly observed with these types of chelates. Complexes that adopt the more slowly exchanging square antiprismatic coordination geometry are therefore preferred; however, the factors that govern which coordination …

Exploring The Ph Dependence Of Viologen Reduction By Alpha-Carbon Radicals Derived From Hcy And Cys, Dong Wang, William E. Crowe, Robert M. Strongin, Martha Sibrian-Vazquez

Chemistry Faculty Publications and Presentations

The colorimetric reaction of homocysteine (HCy) with a series of viologen salts suggests a linear correlation between the mid-point reduction potential of Hcy-derived α-carbon radicals and pH.

Optimising The Synthesis And Red–Green–Blue Emission Of A Simple Organic Dye, Martha Sibrian-Vazquez, Robert M. Strongin

Chemistry Faculty Publications and Presentations

Synthetic dyes have been widely used in supramolecular chemistry not only to probe fundamental chemical interactions but also as components of functional materials. Most current efforts in this regard are directed at designing new host systems for the dyes. Herein we report on the study of a versatile new organic fluorophore. We describe a synthesis which affords improved yields in a convenient one pot procedure. Moreover, a simple method for predicting and controlling the dye’s responses to external stimuli affords a potentially practical method for achieving red–green–blue and concomitant white light generation.

High-Performance Broadcast And Multicast Protocols For Multi-Radio Multi-Channel Wireless Mesh Networks, Jun Wang

Electrical & Computer Engineering Theses & Dissertations

Recently, wireless mesh networks (WMNs) have attracted much attention. A vast amount of unicast, multicast and broadcast protocols has been developed for WMNs or mobile ad hoc networks (MANETs). First of all, broadcast and multicast in wireless networks are fundamentally different from the way in which wired networks function due to the well-known wireless broadcast/multicast advantage. Moreover, most broadcast and multicast protocols in wireless networks assume a single-radio single-channel and single-rate network model, or a generalized physical model, which does not take into account the impact of interference. This dissertation focuses on high-performance broadcast and multicast protocols designed for multi-radio …

Sensitive Detection Of Novel Effects And Characteristic Signal Structure Of Higher Harmonic Detection In Wavelength Modulation Spectroscopy, Mohammad Amir Khan

Electrical & Computer Engineering Theses & Dissertations

We discuss experimental and theoretical results of absorption features of the oxygen A-band transitions when synchronous detection at higher harmonics using Wavelength Modulation Spectroscopy (WMS) is performed. A key aspect of structure higher harmonic detection is discussed. It is shown that the signal magnitude and spectral locations of turning points and zero crossings of WMS signal demonstrate key signatures of collision dynamics of gaseous specie parameters and lineshape parameters. In addition, it is also shown that these salient features provide sensitive probes for any changes in the gas environment or lineshape parameters. We discuss several advantages and subtle physical effects …

Liposomes Recruit Ipac To The Shigella Flexneri Type Iii Secretion Apparatus Needle As A Final Step In Secretion Induction, C. R. Epler, Nicholas E. Dickenson, A. J. Olive, W. L. Picking, W. D. Picking

Chemistry and Biochemistry Faculty Publications

Shigella flexneri contact with enterocytes induces a burst of protein secretion via its type III secretion apparatus (TTSA) as an initial step in cellular invasion. We have previously reported that IpaD is positioned at the TTSA needle tip (M. Espina et al., Infect. Immuno. 74:4391-4400, 2006). From this position, IpaD senses small molecules in the environment to control the presentation of IpaB to the needle tip. This step occurs without type III secretion induction or IpaC recruitment to the S. flexneri surface. IpaC is then transported to the S. flexneri surface when target cell lipids are added, and this event …

Transformée En Échelle De Signaux Stationnaires, Daniel Alpay, Mamadou Mboup

Mathematics, Physics, and Computer Science Faculty Articles and Research

Using the scale transform of a discrete time signal we define a new family of linear systems. We focus on a particular case related to function theory in the bidisk.

A Kinship-Based Modification Of The Armitage Trend Test To Address Hidden Population Structure And Small Differential Genotyping Errors, Cyril Rakovski, Daniel O. Stram

Mathematics, Physics, and Computer Science Faculty Articles and Research

Background/Aims We propose a modification of the well-known Armitage trend test to address the problems associated with hidden population structure and hidden relatedness in genome-wide case-control association studies.

Methods The new test adopts beneficial traits from three existing testing strategies: the principal components, mixed model, and genomic control while avoiding some of their disadvantageous characteristics, such as the tendency of the principal components method to over-correct in certain situations or the failure of the genomic control approach to reorder the adjusted tests based on their degree of alignment with the underlying hidden structure. The new procedure is based on Gauss-Markov …

Transport Of Dust And Anthropogenic Aerosols Across Alexandria, Egypt, Hesham El-Askary, R. Farouk, C. Ichoku, Menas Kafatos

Mathematics, Physics, and Computer Science Faculty Articles and Research

The flow of pollutants from Europe and desert dust to Europe from the Sahara desert both affects the air quality of the coastal regions of Egypt. As such, measurements from both ground and satellite observations assume great importance to ascertain the conditions and flow affecting the Nile Delta and the large city of Alexandria. We note that special weather conditions prevailing in the Mediterranean Sea result in a westerly wind flow pattern during spring and from North to South during the summer. Such flow patterns transport dust-loaded and polluted air masses from the Sahara desert and Europe, respectively, through Alexandria, …

Carbon Dioxide: Harmless, Ubiquitous, And Certainly Not A "Pollutant" Under A Liability Policy's Absolute Pollution Exclusion, J. Wylie Donald, Craig W. Davis

Seton Hall Law Review

No abstract provided.

An Enhanced Data Mining Life Cycle, Markus Hofmann, Brendan Tierney

Conference papers

Data mining projects are complex and can have a high failure rate. In order to improve project management and success rates of such projects a life cycle is vital to the overall success of the project. This paper reports on a research project that was concerned with the life cycle development for data mining projects, its team members and their role. The paper provides a detailed view of the design and development of the data mining life cycle called DMLC. The life cycle aims to support all members of data mining project teams as well as IT managers and academic …