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2014

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A Decision Framework For Optimal Pairing Of Wind And Demand Response Resources, C. Lindsay Anderson, Judith Cardell Jan 2014

A Decision Framework For Optimal Pairing Of Wind And Demand Response Resources, C. Lindsay Anderson, Judith Cardell

Engineering: Faculty Publications

Day-ahead electricity markets do not readily accommodate power from intermittent resources such as wind because of the scheduling difficulties presented by the uncertainty and variability in these resources. Numerous entities have developed methods to improve wind forecasting and thereby reduce the uncertainty in a day-ahead schedule for wind power generation. This paper introduces a decision framework for addressing the inevitable remaining variability resulting from imperfect forecasts. The framework uses a paired resource, such as demand response, gas turbine, or storage, to mitigate the generation scheduling errors due to wind forecast error. The methodology determines the cost-effective percentage, or adjustment factor, …

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Impaired Fasting Glucose Level And Diabetes In Kaoma And Kasama Rural Districts Of Zambia: Prevalence And Correlates In 2008-2009 Population Based Surveys, Olesegun A. Babaniyi, Peter Songolo, Emmanuel Rudatsikira, Adamson S. Muula, David Mulenga, Mazyanga L. Mazaba-Liwewe, Idah Ndumba, Freddie Masaninga, Seter Siziya Jan 2014

Impaired Fasting Glucose Level And Diabetes In Kaoma And Kasama Rural Districts Of Zambia: Prevalence And Correlates In 2008-2009 Population Based Surveys, Olesegun A. Babaniyi, Peter Songolo, Emmanuel Rudatsikira, Adamson S. Muula, David Mulenga, Mazyanga L. Mazaba-Liwewe, Idah Ndumba, Freddie Masaninga, Seter Siziya

Faculty Publications

Background: Impaired fasting glucose level has been associated with increased incidence of Type 2 Diabetes mellitus, and diabetes is becoming a major public health problem in developing countries. The objective of the study was to determine the prevalence and correlates for impaired fasting glucose level/diabetes in Kaoma and Kasama rural districts of Zambia. Methods and Findings: A cross sectional study using modified World Health Organization (WHO) global non communicable diseases (NCD) surveillance initiative NCD STEPwise approach was used in the study. Proportions were compared using the Yates’ corrected Chi-square test, and a result yielding a p value of less than …

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Understanding The Times: A Causal/Comparative Study Of The Effectiveness Of A Christian Worldview Curriculum In Helping Students Develop A Christian Worldview, Donald Barrows Jan 2014

Understanding The Times: A Causal/Comparative Study Of The Effectiveness Of A Christian Worldview Curriculum In Helping Students Develop A Christian Worldview, Donald Barrows

Doctoral Dissertations and Projects

Christian educators are concerned about the development of a Christian worldview in their students. They also desire that their students maintain that worldview after graduation. In this study, the author attempts to determine the effectiveness of the Understanding the Times Christian worldview curriculum in helping students develop a Christian worldview. To do this, a causal/comparative research design was used as participants took a worldview test to determine the extent to which their worldviews compared with biblical teachings. The researcher sampled a random sample of Christian high school graduates who have taken the yearlong Understanding the Times Christian worldview course at …

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Asor 2013, Paul J. Ray Jan 2014

Asor 2013, Paul J. Ray

Faculty Publications

No abstract provided.

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Nlo Hierarchy Of Wilson Lines Evolution, I. Balitsky Jan 2014

Nlo Hierarchy Of Wilson Lines Evolution, I. Balitsky

Physics Faculty Publications

The high-energy behavior of QCD amplitudes can be described in terms of the rapidity evolution of Wilson lines. I present the hierarchy of evolution equations for Wilson lines in the next-to-leading order.

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The Emc Effect In Spin Structure Functions, W. K. Brooks, H. Hakobyan, B. Kopeliovich, S. Kuleshov, S. Mancilla, R. Mendez, K. Adhikari, G. Dodge, L. El Fassi, S. Kuhn, L. Weinstein, H. Avakian, A. Deur, D. Higinbotham, C. Keith, W. Melnitchouk, J. Pierce, D. Crabb, D. Keller, S. Tkachenko, J. Zhang, P. E. Bosted, K. Griffioen, K. Hicks, R. Dupré, T. Badman, S. Li, E. Long, K. Slifer, P. Solvignon, R. Zielinski, N. Kalantarians, F. J. Klein, A. W. Thomas, W. Bentz, I. Cloet, R. B. Wiringa, C. Ciofi Degli Atti, H. Fanchiotti, C. A. Garcia Canal, T. Tarutina, V. Vento Jan 2014

The Emc Effect In Spin Structure Functions, W. K. Brooks, H. Hakobyan, B. Kopeliovich, S. Kuleshov, S. Mancilla, R. Mendez, K. Adhikari, G. Dodge, L. El Fassi, S. Kuhn, L. Weinstein, H. Avakian, A. Deur, D. Higinbotham, C. Keith, W. Melnitchouk, J. Pierce, D. Crabb, D. Keller, S. Tkachenko, J. Zhang, P. E. Bosted, K. Griffioen, K. Hicks, R. Dupré, T. Badman, S. Li, E. Long, K. Slifer, P. Solvignon, R. Zielinski, N. Kalantarians, F. J. Klein, A. W. Thomas, W. Bentz, I. Cloet, R. B. Wiringa, C. Ciofi Degli Atti, H. Fanchiotti, C. A. Garcia Canal, T. Tarutina, V. Vento

Physics Faculty Publications

We propose to perform the first measurements of the spin-dependent EMC effect utilizing CLAS12 in Hall B with 11 GeV polarized electrons and polarized nuclear targets. Our target of choice is ⁷Li (in the form of dynamically polarized ⁷LiD) in which a highly polarized proton is embedded in the nuclear medium. Simultaneously, we will also measure the double spin asymmetry on the proton with a ⁶LiH target, to minimize systematic uncertainties. The experiment will obtain the double spin asymmetry A ⁷IILi ≈ g⁷₁Li from the measurement on ⁷LiD, after correcting for the small contribution from other polarized …

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High Precision Determination Of The Q² Evolution Of The Bjorken Sum, A. Deur, Y. Prok, V. Burkert, D. Crabb, F. X. Girod, K. A. Griffioen, N. Guler, S. E. Kuhn, N. Kvaltine Jan 2014

High Precision Determination Of The Q² Evolution Of The Bjorken Sum, A. Deur, Y. Prok, V. Burkert, D. Crabb, F. X. Girod, K. A. Griffioen, N. Guler, S. E. Kuhn, N. Kvaltine

Physics Faculty Publications

We present a significantly improved determination of the Bjorken sum for 0.6 ≤ Q2 ≤ 4.8 GeV2 using precise new gp1 and gd1 data taken with the CLAS detector at Jefferson Lab. A higher-twist analysis of the Q2 dependence of the Bjorken sum yields the twist-4 coefficient f p-n2= -0.064 ± 0.009 ± 0.032 0.036. This leads to the color polarizabilities χ p-n E= -0.032 ± 0.024 and χp-nB= 0.032 ± 0.013. The strong force coupling is determined to be α MSS (M2Z …

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Development Of A Multi-Spoke Superconducting Cavity For Nuclear Physics, Light Sources, And Driven Systems Applications, Jean Delayen Jan 2014

Development Of A Multi-Spoke Superconducting Cavity For Nuclear Physics, Light Sources, And Driven Systems Applications, Jean Delayen

Physics Faculty Publications

No abstract provided.

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Narrow-Band Emission In Thomson Sources Operating In The High-Field Regime, Balša Terzić, Kirsten Deitrick, Alicia S. Hofler, Geoffrey A. Krafft Jan 2014

Narrow-Band Emission In Thomson Sources Operating In The High-Field Regime, Balša Terzić, Kirsten Deitrick, Alicia S. Hofler, Geoffrey A. Krafft

Physics Faculty Publications

We present a novel and quite general analysis of the interaction of a high-field chirped laser pulse and a relativistic electron, in which exquisite control of the spectral brilliance of the up-shifted Thomson-scattered photon is shown to be possible. Normally, when Thomson scattering occurs at high field strengths, there is ponderomotive line broadening in the scattered radiation. This effect makes the bandwidth too large for some applications and reduces the spectral brilliance. We show that such broadening can be corrected and eliminated by suitable frequency modulation of the incident laser pulse. Furthermore, we suggest a practical realization of this compensation …

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Beam-Energy Dependence Of Charge Separation Along The Magnetic Field In Au + Au Collisions At Rhic, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, C. D. Anson, A. Aparin, D. Arkhipkin, E. C. Aschenauer, G. S. Averichev, A. Banerjee, D. R. Beavis, R. Bellwied, A. Bhasin, A. K. Bhati, P. Bhattarai, H. Bichsel, M. Zyzak, Et Al., Star Collaboration Jan 2014

Beam-Energy Dependence Of Charge Separation Along The Magnetic Field In Au + Au Collisions At Rhic, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, C. D. Anson, A. Aparin, D. Arkhipkin, E. C. Aschenauer, G. S. Averichev, A. Banerjee, D. R. Beavis, R. Bellwied, A. Bhasin, A. K. Bhati, P. Bhattarai, H. Bichsel, M. Zyzak, Et Al., Star Collaboration

Physics Faculty Publications

Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with …

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A Study Of Personal Cloud Computing: Compatibility, Social Influence, And Moderating Role Of Perceived Familiarity, Murad Moqbel, Valerie L. Bartelt, Mohammed Al-Suqri Jan 2014

A Study Of Personal Cloud Computing: Compatibility, Social Influence, And Moderating Role Of Perceived Familiarity, Murad Moqbel, Valerie L. Bartelt, Mohammed Al-Suqri

Information Systems Faculty Publications

Building on a research framework based on the Theory of Reasoned Action (TRA), Innovation Diffusion Technology (IDT), and the Technology Adoption Model (TAM), we propose a model integrating compatibility, social influence, and perceived familiarity given the implicit uncertainty of personal cloud. Our model emphasizes the moderating effect of perceived familiarity on the relationships between both perceived compatibility and social influence on behavioral intention. PLS-based structural equation modeling is employed to test the related propositions empirically. Results from a survey, involving 265 university students, reveal that perceived compatibility explains a larger proportion of the variance in behavioral intention; perceived familiarity plays …

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Work-Family Conflict, Family-Supportive Supervisor Behaviors (Fssb), And Sleep Outcomes, Tori Laurelle Crain, Leslie B. Hammer, Todd Bodner, Ellen Ernst Kossek, Phyllis Moen, Richard Lilienthal, Orfeu Buxton Jan 2014

Work-Family Conflict, Family-Supportive Supervisor Behaviors (Fssb), And Sleep Outcomes, Tori Laurelle Crain, Leslie B. Hammer, Todd Bodner, Ellen Ernst Kossek, Phyllis Moen, Richard Lilienthal, Orfeu Buxton

Psychology Faculty Publications and Presentations

Although critical to health and well-being, relatively little research has been conducted in the organizational literature on linkages between the work-family interface and sleep. Drawing on Conservation of Resources theory, we use a sample of 623 information technology workers to examine the relationships between work-family conflict, family-supportive supervisor behaviors (FSSB), and sleep quality and quantity. Validated wrist actigraphy methods were used to collect objective sleep quality and quantity data over a one week period of time, and survey methods were used to collect information on self-reported work-family conflict, FSSB, and sleep quality and quantity. Results demonstrated that the combination of …

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Part 5: The Impact Of Vehicle Tolls On Hampton Roads: Job Mobility, Residential Living Choices And Regional Cohesion, Regional Studies Institute, Old Dominion University Jan 2014

Part 5: The Impact Of Vehicle Tolls On Hampton Roads: Job Mobility, Residential Living Choices And Regional Cohesion, Regional Studies Institute, Old Dominion University

State of the Region Reports: Hampton Roads

This was one of the hottest topics in Hampton Roads this past year and we analyze the probable effects of those tolls on our region.

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Testing A Structural Equation Model Of Language-Based Cognitive Fitness, Elizabeth Ann Moxley-Paquette Jan 2014

Testing A Structural Equation Model Of Language-Based Cognitive Fitness, Elizabeth Ann Moxley-Paquette

Walden Dissertations and Doctoral Studies

The normative development of language is often taken for granted, yet problems with language development can result in stress for the individual and family. A challenge with these language development problems lies within the contemporary education system, which assumes that children have appropriate skills when they begin school. The purpose of the study was to test a theoretical model of language readiness known as language-based cognitive fitness, which includes measures associated with structural concepts of language involving receptive language, expressive language, spontaneous narrative speech, and writing fluency. The sample included children from a private school who received an extensive battery …

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Factors Associated With Chlamydia Trachomatis Reinfection Among Puerto Rican Adolescents 2008-2012, Flavia Rosado Jan 2014

Factors Associated With Chlamydia Trachomatis Reinfection Among Puerto Rican Adolescents 2008-2012, Flavia Rosado

Walden Dissertations and Doctoral Studies

The purpose of this study was to investigate the association between Chlamydia trachomatis reinfection rates of Puerto Rican adolescents and failure to follow the retesting protocol, failure of sexual partners to receive treatment, and failure to participate in the sexual orientation program about risk factors. Secondary data analysis, from a historical prospective study from the Health Department of Puerto Rico, was used in this study. Data analysis was restricted to adolescents 15 to 19-years-old who had a positive chlamydia result and reinfection pattern since January 2008 through December 2012. Multiple logistic regression analyses were run to predict Chlamydia trachomatis reinfection. …

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Synthetic Routes To Therapeutic Agents Via Masked Functionalities: From Orthogonal Peptide Crosslink To Photothermal Cancer Prodrug, Chyree Shantel Batton Jan 2014

Synthetic Routes To Therapeutic Agents Via Masked Functionalities: From Orthogonal Peptide Crosslink To Photothermal Cancer Prodrug, Chyree Shantel Batton

LSU Doctoral Dissertations

The theonellamides are a family of compounds distinguished by their crosslinking ô-histidinoalanine (ô-HAL) residue. Part one of this dissertation details the synthesis of an orthogonally protected ô-HAL building block that will be incorporated into a total synthesis of theonellamide C. Selective deprotection of each amine and acid of this orthogonally protected building block is also demonstrated. Various reaction partners for the assembly of ô-histidinoalanine were explored. One approach involved the coupling of N-Fmoc-â-iodoalanine benzyl ester and (Nðim)-blocked histidine nucleophiles including a fused bicyclic urea and a Boc-His(Nð-Pac)-OMe. While the imidazolium salts were identified by mass spectrometry, elimination of the iodide …

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Identifying And Quantifying Factors Affecting Injury Severity Of Young Drivers Involved In Single Vehicle Crashes Occurring Within Curves On Rural Two-Lane Roads In Louisiana, Cory Hutchinson Jan 2014

Identifying And Quantifying Factors Affecting Injury Severity Of Young Drivers Involved In Single Vehicle Crashes Occurring Within Curves On Rural Two-Lane Roads In Louisiana, Cory Hutchinson

LSU Doctoral Dissertations

This study investigates factors affecting young driver injury levels for single vehicle crashes occurring within curves on rural two-lane roads in Louisiana. Although the number of fatal and serious injury crashes involving young drivers is declining, young drivers are still overrepresented in crashes and crashes are still the leading cause of death for young drivers. Driver injury prediction models are formulated using binary logistic regression and Bayesian Network (BN) modeling. Binary logistic regression models have commonly been used in safety studies to analyze injury levels of occupants involved in crashes over the past few decades. More recently, a few safety …

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Factor Analysis And Cut-Off Scores For The Autism Spectrum Disorders-Observation For Children, Megan Alice Hattier Jan 2014

Factor Analysis And Cut-Off Scores For The Autism Spectrum Disorders-Observation For Children, Megan Alice Hattier

LSU Doctoral Dissertations

Optimal prognoses for children with Autism Spectrum Disorders (ASDs) often rely upon early intervention; thus, there has been a call for reliable and valid assessment tools in order to ensure accurate diagnoses among youth at risk for developmental disabilities (DDs) such as autism. The target of this paper is to inspect the underlying factor structure of a recently developed observation tool for assessing autistic symptoms, the Autism Spectrum Disorders – Observation for Children (ASD-OC). More importantly, cutoff scores were also developed for clinical use in order to distinguish between those with and without an ASD. Given that marked changed were …

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An Evaluation Of The Effectiveness Of The Check-In/Check-Out Intervention For Students Engaging In Relational Aggression And Their Classmates, Emily Patty Corwin Jan 2014

An Evaluation Of The Effectiveness Of The Check-In/Check-Out Intervention For Students Engaging In Relational Aggression And Their Classmates, Emily Patty Corwin

LSU Doctoral Dissertations

The purpose of the current study was to evaluate the effectiveness of the Check-in/Check-out intervention (CICO; Crone, Hawken, & Horner, 2010) when it is applied to children who display relationally aggressive behaviors. Previous research indicates that universal, school-wide, interventions are generally ineffective in decreasing behaviors associated with relational aggression. It may be that a targeted intervention, such as CICO, could be more effective. Three schools were selected for participation in the current project, and the fifth grade of each of these schools was targeted. One school served as the treatment school, while the other schools served as the delayed-treatment control …

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The Romano-Parthian Cold War: Julio-Claudian Foreign Policy In The First Century Ce And Tacitus' Annales, John J. Poirot Jan 2014

The Romano-Parthian Cold War: Julio-Claudian Foreign Policy In The First Century Ce And Tacitus' Annales, John J. Poirot

LSU Doctoral Dissertations

Many ancient and modern authors view the first century CE as an unprecedented era of peace and security for the Roman Empire. These writers often identify the Roman emperor Augustus’ diplomatic settlement with Parthia (ca. 20 BCE) as an important cornerstone of the Pax Romana. But while the two ancient superpowers may have averted large-scale conflicts, Romano-Parthian relations under Augustus and the Julio-Claudians were never entirely uneventful or especially peaceful. Whether the Parthian Empire posed a real threat to Rome’s internal security or not, Julio-Claudian emperors developed elaborate “cold war”-style strategies to keep Rome’s eastern rival in check. Augustus and …

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Investigation Of Factors Controlling The Dynamics Of Beach Surface Moisture Content, Phillip P. Schmutz Jan 2014

Investigation Of Factors Controlling The Dynamics Of Beach Surface Moisture Content, Phillip P. Schmutz

LSU Doctoral Dissertations

This dissertation investigates the factors that control beach surface moisture dynamics. The study consists of a suite of laboratory and field experiments to document, analyze, and model the role of the key input parameters (groundwater table fluctuations, capillary actions (i.e., moisture retention, hysteresis, and hydraulic conductivity), evaporation-condensation, and sediment size) on the spatio-temporal variability of beach surface moisture content. Results from the laboratory experiments demonstrated that the capillary processes of hysteresis and hydraulic conductivity heavily influence the spatial and temporal dynamics of beach moisture. Additionally, different sediment grain sizes produced marked differences in capillary processes within the sediment column, under …

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Quantum Optical Metrology, Sensing And Imaging, Kebei Jiang Jan 2014

Quantum Optical Metrology, Sensing And Imaging, Kebei Jiang

LSU Doctoral Dissertations

In this dissertation we begin with a brief introduction to quantum optics concentrating on the topics of the noise of quantum optical states, quantum estimation theory, quantum interferometry and the atom-field interaction. This background is necessary for understanding the discussions in later chapters. In particular, quantum interferometry, which is optical interferometry when the light source is a quantum mechanical state, plays a central role in this dissertation. In Chapter 2 we discuss the phase estimation sensitivity of quantum metrology when photon loss is present. In Chapter 3 we extend the discussion to include the phase fluctuation of the system caused …

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The Efficacy Of Interactive Journaling® In Reducing Alcohol Use And Alcohol-Related Problems Among Mandated College Student Drinkers, Steven Lee Proctor Jan 2014

The Efficacy Of Interactive Journaling® In Reducing Alcohol Use And Alcohol-Related Problems Among Mandated College Student Drinkers, Steven Lee Proctor

LSU Doctoral Dissertations

Alcohol use and alcohol-related problems remain serious public health and safety concerns on United States college campuses. Considerable research has amassed to support the efficacy of the Alcohol Skills Training Program (ASTP), most notably the Brief Assessment and Screening Intervention for College Students, in reducing alcohol use and alcohol-related problems among mandated and voluntary college student drinkers. The most recent outgrowth of the ASTP curriculum, CHOICES About Alcohol: A Brief Alcohol Abuse Prevention Program, is a self-guided, experiential writing process which utilizes Interactive Journaling®. The present study sought to evaluate the efficacy of CHOICES in reducing alcohol use and alcohol-related …

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Prevalence Of Campylobacter Jejuni In Small-Scale Broiler Operations And The Effects Of Sulfadimethoxine Administered To Control C. Jejuni Infection In Broilers, Wannee Tangkham Jan 2014

Prevalence Of Campylobacter Jejuni In Small-Scale Broiler Operations And The Effects Of Sulfadimethoxine Administered To Control C. Jejuni Infection In Broilers, Wannee Tangkham

LSU Doctoral Dissertations

Campylobacter spp. particularly C. jejuni has been recognized as one of the most prevalent causes of foodborne bacterial illnesses in humans. Most previous studies have focused on the transmission routes of C. jejuni from commercial flock farms to the final retail product. To date, no in vivo studies have addressed the efficacy of sulfadimethoxine in the control of C. jejuni in poultry. This dissertation research proceeds along two lines of investigation. The objectives of the first line of investigation are to determine the enumeration of Campylobacter spp. and the prevalence on both Campylobacter spp. and C. jejuni on live egg …

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Construct Validity Of The Autism Spectrum Disorders-Child Version (Asd-C) And The Child Behavior Checklist (Cbcl), Kimberly Tureck Sheffield Jan 2014

Construct Validity Of The Autism Spectrum Disorders-Child Version (Asd-C) And The Child Behavior Checklist (Cbcl), Kimberly Tureck Sheffield

LSU Doctoral Dissertations

Previous researchers have demonstrated that Autism Spectrum Disorder (ASD) is related to increased prevalence of other psychological disorders. Comorbid disorders increase the difficulties in socialization and communication already experienced by children with ASD. These symptoms often require additional intervention techniques and should be identified as early as possible to beget the best prognosis. The Autism Spectrum Disorders – Child Version (ASD-C) is an informant based assessment battery specifically designed to measure symptoms of ASD, comorbid disorders, and challenging behavior in children with ASD. The reliability and validity of this assessment has been established in previous studies, but there is no …

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Nowhere-Zero 3-Flows In Signed Graphs, Yezhou Wu, Dong Ye, Wenan Zang, Cun-Quan Zhang Jan 2014

Nowhere-Zero 3-Flows In Signed Graphs, Yezhou Wu, Dong Ye, Wenan Zang, Cun-Quan Zhang

Faculty & Staff Scholarship

Tutte observed that every nowhere-zero $k$-flow on a plane graph gives rise to a $k$-vertex-coloring of its dual, and vice versa. Thus nowhere-zero integer flow and graph coloring can be viewed as dual concepts. Jaeger further shows that if a graph $G$ has a face-$k$-colorable 2-cell embedding in some orientable surface, then it has a nowhere-zero $k$-flow. However, if the surface is nonorientable, then a face-$k$-coloring corresponds to a nowhere-zero $k$-flow in a signed graph arising from $G$. Graphs embedded in orientable surfaces are therefore a special case that the corresponding signs are all positive. In this paper, we prove …

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A Data-Driven Storm Surge Analysis For The U.S. Gulf Coast, Harold Francis Needham Jan 2014

A Data-Driven Storm Surge Analysis For The U.S. Gulf Coast, Harold Francis Needham

LSU Doctoral Dissertations

This dissertation provides the first empirical storm surge analysis for the U.S. Gulf Coast. Data are provided by SURGEDAT, a comprehensive storm surge database. A global storm surge literature review provided more than 700 observations in six ocean basins. The most severe storm surges have occurred in the Bay of Bengal, and the most frequent low-magnitude surges have occurred in East Asia. The U.S. Gulf Coast experiences the second highest frequency of low- and high- magnitude storm surges. Two Gulf Coast studies revealed that storm surge heights correlate better with pre-landfall tropical cyclone conditions, such as maximum wind speed and …

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Numerical Experiments Of Hurricane Impact On Vertical Mixing And De-Stratification Of The Louisiana Shelf Waters, Mohammadnabi Allahdadi Jan 2014

Numerical Experiments Of Hurricane Impact On Vertical Mixing And De-Stratification Of The Louisiana Shelf Waters, Mohammadnabi Allahdadi

LSU Doctoral Dissertations

The numerical model FVCOM (Finite Volume Community Ocean Model) was applied to study the effects of Hurricane Katrina on the vertical mixing over the Louisiana shelf and the process of post-storm re-stratification. Wind field from Hurricane Katrina was generated using a single vortex analytical model and was evaluated using available wind measurements over the shelf. Simulations of shelf circulation under Hurricane Katrina were done through several numerical tests to find the best approach for treating vertical eddy viscosity. Model results for the shelf during Katrina demonstrated opposite currents between surface and bottom for most of the shelf area. Results also …

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Design, Synthesis, And Evaluation Of Small Molecule-Based, Profluorogenic Activatable Substrate Probes For Detection And Visualization Of Human Cancer Enzyme Nad(P)H:Quinone Oxidoreductase-1, Suraj Uditha Hettiarachchi Jan 2014

Design, Synthesis, And Evaluation Of Small Molecule-Based, Profluorogenic Activatable Substrate Probes For Detection And Visualization Of Human Cancer Enzyme Nad(P)H:Quinone Oxidoreductase-1, Suraj Uditha Hettiarachchi

LSU Doctoral Dissertations

Cancer comprises many specific diseases, and it is currently responsible for millions of deaths worldwide. This broad disease profile is a great challenge for personalized oncology. Critical for the success of cancer therapy is the exploration of improved methodologies for the early detection of localized and disseminated tumor cells in patients, where bio-molecular imaging has become an indispensable tool. Being one of many different imaging techniques, optical fluorescence imaging has been translated over the years from the bench to clinical research, and it is now on the verge of being able to address some of the pressing challenges in molecular …

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Impact Of An Online Student Bridge Program For First-Year Nontraditional Students, Lisa Rene Adkins Jan 2014

Impact Of An Online Student Bridge Program For First-Year Nontraditional Students, Lisa Rene Adkins

Walden Dissertations and Doctoral Studies

Low retention rates for first-year students plague many higher education institutions, and are even lower among online institutions of higher education. At Athena Colleges (a pseudonym), the attrition rate can be as high as 50% in students' first academic year. To address this concern, Athena Colleges has implemented an online bridge program that addresses students' academic needs and persistence. The purpose of the study was to evaluate the effectiveness of the bridge program in reducing the first-time student attrition rate and academic performance in their first term. Most of Athena Colleges students are nontraditional students and due to this, the …

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