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2007

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We Are…Marshall, August 3, 2007, Office Of Marshall University Communications Aug 2007

We Are…Marshall, August 3, 2007, Office Of Marshall University Communications

We Are ... Marshall: the Newsletter for Marshall University 1999-2023

No abstract provided.

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Stabilization Of Smar1 Mrna By Pga2 Involves A Stem Loop Structure In The 5' Utr, Lakshminarasimhan Pavritha, Shravanti Rampalli, Surajit Sinha, Kadreppa Sreenath, Richard G. Pestell, Samit Chattopadhyay Aug 2007

Stabilization Of Smar1 Mrna By Pga2 Involves A Stem Loop Structure In The 5' Utr, Lakshminarasimhan Pavritha, Shravanti Rampalli, Surajit Sinha, Kadreppa Sreenath, Richard G. Pestell, Samit Chattopadhyay

Department of Cancer Biology Faculty Papers

Prostaglandins are anticancer agents known to inhibit tumor cell proliferation both in vitro and in vivo by affecting the mRNA stability. Here we report that a MAR-binding protein SMAR1 is a target of Prostaglandin A2 (PGA2) induced growth arrest. We identify a regulatory mechanism leading to stabilization of SMAR1 transcript. Our results show that a minor stem and loop structure present in the 5' UTR of SMAR1 (1-UTR) is critical for nucleoprotein complex formation that leads to SMAR1 stabilization in response to PGA2. This results in an increased SMAR1 transcript and altered protein levels, that in turn causes downregulation of …

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Summer Commencement: August 3, 2007, University Of North Dakota Aug 2007

Summer Commencement: August 3, 2007, University Of North Dakota

UND Commencement Programs

UND Summer Commencement program from August 3, 2007.

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A Serratia Marcescens Oxyr Homolog Mediates Surface Attachment And Biofilm Formation, Robert M. Q. Shanks, Nicholas A. Stella, Eric J. Kalivoda, Megan R. Doe Aug 2007

A Serratia Marcescens Oxyr Homolog Mediates Surface Attachment And Biofilm Formation, Robert M. Q. Shanks, Nicholas A. Stella, Eric J. Kalivoda, Megan R. Doe

Dartmouth Scholarship

OxyR is a conserved bacterial transcription factor with a regulatory role in oxidative stress response. From a genetic screen for genes that modulate biofilm formation in the opportunistic pathogen Serratia marcescens, mutations in an oxyR homolog and predicted fimbria structural genes were identified. S. marcescens oxyR mutants were severely impaired in biofilm formation, in contrast to the hyperbiofilm phenotype exhibited by oxyR mutants of Escherichia coli and Burkholderia pseudomallei. Further analysis revealed that OxyR plays a role in the primary attachment of cells to a surface. Similar to what is observed in other bacterial species, S. marcescens OxyR …

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The Analysis And Forecast Of Cargo Throughput In Inland Waterway Port Of Baoshan District, Shanghai, Xiang Gu Aug 2007

The Analysis And Forecast Of Cargo Throughput In Inland Waterway Port Of Baoshan District, Shanghai, Xiang Gu

World Maritime University Dissertations

No abstract provided.

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Strategic Research On The Construction Of Tianjin Northern International Shipping Center, Zongna Li Aug 2007

Strategic Research On The Construction Of Tianjin Northern International Shipping Center, Zongna Li

World Maritime University Dissertations

No abstract provided.

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Research On Multi-Agent-Based Shipping Information System, Kai Wang Aug 2007

Research On Multi-Agent-Based Shipping Information System, Kai Wang

World Maritime University Dissertations

No abstract provided.

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Research On Establishment Of Oil Spill Emergency Response System In China Qingdao Port Based On Ann, Ge Zhang Aug 2007

Research On Establishment Of Oil Spill Emergency Response System In China Qingdao Port Based On Ann, Ge Zhang

World Maritime University Dissertations

No abstract provided.

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Globalization : Drive To The Decline Of Liner Conferences, Junlei Mao Aug 2007

Globalization : Drive To The Decline Of Liner Conferences, Junlei Mao

World Maritime University Dissertations

No abstract provided.

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Food Security And Hunger Among Low Income Us Households: Relations To Federal Food Assistance Program Participation, Rebecca Elizabeth Sanders Aug 2007

Food Security And Hunger Among Low Income Us Households: Relations To Federal Food Assistance Program Participation, Rebecca Elizabeth Sanders

Dissertations and Theses

This dissertation describes the conceptual and empirical framework that guides the definition of food insecurity and hunger, the present status of federal programmatic responses, and the status of current research on the topic. It also examines relations between hunger and federal food assistance program participation. Logistic regression is utilized to build two predictor models. Model 1 predicts federal food assistance program participation from household structure, income, community characteristics, and demographics. Model 2 predicts food insecurity/hunger from household structure, income, community characteristics, demographics, and federal food assistance program participation. Results are based on 2004 Current Population Survey data from low income …

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Physiological Compliance During Team Performance, Amanda Elkins Aug 2007

Physiological Compliance During Team Performance, Amanda Elkins

All Theses

Physiological compliance (PC) refers to the correlation between physiological measures of team members over time. The first goal of the current analyses was to generate several means to measure PC from heart rate variability (HRV) data. A second goal was to examine the relationship between PC and team performance during a building clearing task performed by 4-man teams. Teams were tasked with entering and clearing both real and simulated rooms populated with combatants (individuals with a weapon) and non-combatants (individuals without a weapon). Teams had to eliminate (shoot with a laser tag or simulated weapon) combatants and identify non-combatants (verbally …

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Laboratory And Field Responses Of Target And Non-Target Species To Algaecide Exposures, Bryand Duke Aug 2007

Laboratory And Field Responses Of Target And Non-Target Species To Algaecide Exposures, Bryand Duke

All Dissertations

In order for water resource managers to effectively and efficiently react to algal growths that are prohibiting use of a lake, reservoir or stream, information must be obtained on the response of the specific algae in site waters to algaecide exposures. In the absence of this information, ineffective algaecides or excessive treatments may be implemented. Research on development of an efficient algaecide assay using site specific samples could contribute to better decisions regarding algaecide applications and increase margins of safety for non-target species. Since these laboratory experiments provide predictions of responses of algae in site waters to algaecide exposures, these …

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Mixed Quantum-Classical Molecular Dynamics Study Of A Hydrated Electron And An Investigation Of Temperature Control Algorithms, Janet Aremu-Cole Aug 2007

Mixed Quantum-Classical Molecular Dynamics Study Of A Hydrated Electron And An Investigation Of Temperature Control Algorithms, Janet Aremu-Cole

All Dissertations

The use of classical and quantum mechanics has been employed in this dissertation to study temperature control algorithms and a hydrated electron. A comparison of the effects of four commonly used temperature control algorithms on the energetics and dynamics of liquid water has been executed, in efforts to better understand the non-equipartitioning effects caused by some thermostats. The Berendsen, Andersen, Langevin, and velocity rescaling temperature control algorithms were applied to both dimer and bulk water systems, using the TIP4P water model. The two deterministic thermostats, Berendsen and velocity rescaling, display the 'flying ice cube effect' that had been noticed earlier …

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Chloroplast Comparative Genomics: Implications For Phylogeny, Evolution, And Biotechnology, Christopher Saski Aug 2007

Chloroplast Comparative Genomics: Implications For Phylogeny, Evolution, And Biotechnology, Christopher Saski

All Dissertations

Lack of complete chloroplast genome sequences is still a limiting factor determining phylogenetic relationships, discerning evolutionary forces, and extending chloroplast genetic engineering to useful crops. Therefore, the chloroplast genomes from six economically important crops were isolated and sequenced. The results will have an impact on chloroplast biology and biotechnology.
The complete soybean chloroplast genome was compared to the other completely sequenced legumes, Lotus and Medicago. The rpl22 gene was found to be missing from all three legumes, a very informative phylogenetic marker. There is a single, large inversion changing the gene order in the legumes from the typical order found …

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A Genome-Scale Approach To Phylogeny Of Ray-Finned Fish (Actinopterygii) And Molecular Systematics Of Clupeiformes, Chenhong Li Aug 2007

A Genome-Scale Approach To Phylogeny Of Ray-Finned Fish (Actinopterygii) And Molecular Systematics Of Clupeiformes, Chenhong Li

School of Biological Sciences: Dissertations, Theses, and Student Research

The current trends in molecular phylogenetics are towards assembling large data matrices from many independent loci and employing realistic probabilistic models. Large genome-scale data sets shall reduce the sampling error, whereas complex models accommodating heterogeneity among sites and along the phylogenetic tree can decrease systematic errors. The theme of this dissertation project is using both bioinformatic and experimental approaches to develop genome-scale nuclear gene markers and applying them in studies of phylogeny of ray-finned fish (Actinopterygii) and systematics of clupeiforms. Bioinformatic tools and computer programs were developed to search for conserved single-copy nuclear genes with long exons. By comparing within …

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Planning, Scheduling, And Timetabling In A University Setting, Christine Kraft Aug 2007

Planning, Scheduling, And Timetabling In A University Setting, Christine Kraft

All Dissertations

Methods and procedures for modeling university student populations, predicting course enrollment, allocating course seats, and timetabling final examinations are studied and proposed. The university enrollment model presented uses a multi-dimensional state space based on student demographics and the Markov property, rather than longitudinal data to model student movement. The procedure for creating adaptive course prediction models uses student characteristics to identify groups of undergraduates whose specific course enrollment rates are significantly different than the rest of the university population. Historical enrollment rates and current semester information complete the model for predicting enrollment for the coming semester. The course prediction model …

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Non-Boltzamann Sampling For The Accurate Calculation Of Peptide-Surface Adsorption Free Energy, Feng Wang Aug 2007

Non-Boltzamann Sampling For The Accurate Calculation Of Peptide-Surface Adsorption Free Energy, Feng Wang

All Dissertations

%Abstract
The objectives of this project are 1) the setup and refinement of peptide-SAM surface model systems with explicit water using CHARMM and 2) the development of up-to-date simulation protocols for the accurate calculation of adsorption free energy by incorporating the recent development of non-Boltzmann sampling methods in molecular dynamics and applying it for the calculation of adsorption free energy of short peptides onto well-characterized self-assembled monolayers, which is important for understanding protein/surface interactions.
A software package called the Simulation Template Engine for Peptides at Surfaces (STEPS) was developed for the fulfillment of the first objective. It facilitates the automatic …

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Control Techniques For Robot Manipulator Systems With Modeling Uncertainties, David Braganza Aug 2007

Control Techniques For Robot Manipulator Systems With Modeling Uncertainties, David Braganza

All Dissertations

This dissertation describes the design and implementation of various nonlinear control strategies for robot manipulators whose dynamic or kinematic models are uncertain. Chapter 2 describes the development of an adaptive task-space tracking controller for robot manipulators with uncertainty in the kinematic and dynamic models. The controller is developed based on the unit quaternion representation so that singularities associated with the otherwise commonly used three parameter representations are avoided. Experimental results for a planar application of the Barrett whole arm manipulator (WAM) are provided to illustrate the performance of the developed adaptive controller.
The controller developed in Chapter 2 requires the …

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Numerical Approximation Of Shear-Thinning And Johnson-Segalman Viscoelastic Fluid Flows, Jason Howell Aug 2007

Numerical Approximation Of Shear-Thinning And Johnson-Segalman Viscoelastic Fluid Flows, Jason Howell

All Dissertations

In this work computational approaches to the numerical simulation of steady-state viscoelastic fluid flow are investigated. In particular, two aspects of computing viscoelastic flows are of interest: 1) the stable computation of high Weissenberg number Johnson-Segalman fluids and 2) low-order approaches to simulating the flow of fluids obeying a power law constitutive model.
The numerical simulation of viscoelastic fluid flow becomes more difficult as a physical parameter, the Weissenberg number, increases. Specifically, at a Weissenberg number larger than a critical value, the iterative nonlinear solver fails to converge. For the nonlinear Johnson-Segalman constitutive model, defect-correction and continuation methods are examined …

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Quantitative Methods And Detection Techniques In Hyperspectral Imaging Involving Medical And Other Applications, Ankita Roy Aug 2007

Quantitative Methods And Detection Techniques In Hyperspectral Imaging Involving Medical And Other Applications, Ankita Roy

All Dissertations

This research using Hyperspectral imaging involves recognizing targets through spatial and spectral matching and spectral un-mixing of data ranging from remote sensing to medical imaging kernels for clinical studies based on Hyperspectral data-sets generated using the VFTHSI [Visible Fourier Transform Hyperspectral Imager], whose high resolution Si detector makes the analysis achievable. The research may be broadly classified into (I) A Physically Motivated Correlation Formalism (PMCF), which places both spatial and spectral data on an equivalent mathematical footing in the context of a specific Kernel and (II) An application in RF plasma specie detection during carbon nanotube growing process. (III) Hyperspectral …

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Biodiesel Forming Reactions Using Heterogneous Catalysis, Yijun Liu Aug 2007

Biodiesel Forming Reactions Using Heterogneous Catalysis, Yijun Liu

All Dissertations

Biodiesel synthesis from biomass provides a means for utilizing effectively renewable resources, a way to convert waste vegetable oils and animal fats to a useful product, a way to recycle carbon dioxide for a combustion fuel, and production of a fuel that is biodegradable, non-toxic, and has a lower emission profile than petroleum-diesel. Free fatty acid (FFA) esterification and triglyceride (TG) transesterification with low molecular weight alcohols constitute the synthetic routes to prepare biodiesel from lipid feedstocks. This project was aimed at developing a better understanding of important fundamental issues involved in heterogeneous catalyzed biodiesel forming reactions using mainly model …

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Nonlinear Vibration And Frequency Response Analysis Of Nanomechanical Cantilever Beams, Seyed Nima Mahmoodi Aug 2007

Nonlinear Vibration And Frequency Response Analysis Of Nanomechanical Cantilever Beams, Seyed Nima Mahmoodi

All Dissertations

Microcantilevers are one the most commonly utilized microelectromechanical systems in a variant of the ultra-precise scanning and characterization application. Of particular interest, the problem of vibrations of microcantilevers has recently received considerable attention due to its application in several nanotechnological instruments such as atomic force microscopy, nanomechanical cantilever sensors and friction force microscopy. For applications such as these, the problem of coupled flexural-torsional nonlinear vibrations of a piezoelectrically-actuated microcantilever beam is considered in this dissertation. The actuation and sensing are both facilitated through bonding a piezoelectric layer (here, ZnO) on the microcantilever surface. The beam is considered to have simultaneous …

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In Situ Photopolymerized Hydrogels For Enhancing Protein Delivery, Chien-Chi Lin Aug 2007

In Situ Photopolymerized Hydrogels For Enhancing Protein Delivery, Chien-Chi Lin

All Dissertations

In recent years, there has been immense interest in the utilization of photopolymerized hydrogels as carriers for controlled protein delivery and cell scaffolds for tissue engineering applications. Although poly(ethylene glycol) (PEG)-based hydrogels formed from mild photopolymerization methods have been suggested as biocompatible matrices that allow for safely encapsulating biomolecules including proteins, peptides, DNA, and cells, the adverse effects of photopolymerization reactions on the encapsulated proteins have largely been overlooked. In addition, conventional hydrophilic hydrogels fail to effectively control protein delivery rates due to their high permeability. These two problems are critical since the delivery of protein therapeutics from hydrogel matrices …

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Differentiation Modulation Of Adult Stem Cells In An Adipose System, Aditya Chaubey Aug 2007

Differentiation Modulation Of Adult Stem Cells In An Adipose System, Aditya Chaubey

All Dissertations

The need for soft tissue reconstruction or augmentation has increased continuously over the years. This need is compounded by patients suffering from post-traumatic repair and congenital soft-tissue deformities. All the current options available to treat the soft tissue deformities have inherent difficulties associated with them. Hence, more research is needed to come up with a better solution to this problem which is only going to increase in magnitude. Tissue engineering is a relatively new technique which has the potential to deliver a cell-based device which can overcome the problems associated with traditional therapies. However, before it becomes clinically viable we …

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Activation Of Systemic Adhesion Molecules And C Reactive Protein In Response To Biomaterial Particle Induced Cytokine Production, Robin Graham Aug 2007

Activation Of Systemic Adhesion Molecules And C Reactive Protein In Response To Biomaterial Particle Induced Cytokine Production, Robin Graham

All Dissertations

Chronic inflammation has been identified as a major contributor to many diseases including, atherosclerosis, osteoporosis, dementia, Alzheimer's disease and type 2 diabetes, to name a few. Many of the same markers of inflammation found in the diseases listed above, including IL-1, IL-6, TNF-α, NF-B and adhesion molecules, have also been found in wear debris induced osteolysis. While the local response to biomaterial wear debris has been characterized quite extensively, very little is known about the systemic effect of biomaterial wear debris on the inflammatory system. The objectives of this study were to evaluate the in vitro and in vivo inflammatory …

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Maternal High-Salt Diet During Pregnancy In Sprague Dawley Rats Programs Exaggerated Stress-Induced Blood Pressure And Heart Rate Responses In Adult Female Offspring, Summer Hayes King Aug 2007

Maternal High-Salt Diet During Pregnancy In Sprague Dawley Rats Programs Exaggerated Stress-Induced Blood Pressure And Heart Rate Responses In Adult Female Offspring, Summer Hayes King

Theses and Dissertations

The prenatal environment has been shown to have lasting effects on cardiovascular health. In the present study, pregnant rats were fed a 0.7% NaCl normal salt (NS) diet or an 8% NaCl high salt (HS) diet throughout pregnancy. Adult offspring were fitted with radiotelemetry probes to continuously measure blood pressure and heart rate. Rats were placed in restraining cages to test for a programmed acute stress hyperresponsiveness. Offspring were challenged with HS diet for one week to determine if blood pressure salt sensitivity had been programmed by the prenatal HS diet. Animals were killed following resting and acute stress conditions, …

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Associations Between Shyness And Internalizing Behaviors, Externalizing Behaviors, And Relationships During Emerging Adulthood, Larry J. Nelson, Laura M. Padilla-Walker, Sarah Badger, Carolyn Mcnamara Barry, Jason S. Carroll, Stephanie D. Madsen Aug 2007

Associations Between Shyness And Internalizing Behaviors, Externalizing Behaviors, And Relationships During Emerging Adulthood, Larry J. Nelson, Laura M. Padilla-Walker, Sarah Badger, Carolyn Mcnamara Barry, Jason S. Carroll, Stephanie D. Madsen

Faculty Publications

Many studies have documented the ways in which shyness can be a barrier to personal well-being and social adjustment throughout childhood and adolescence; however, less is known regarding shyness in emerging adulthood. Shyness as experienced during emerging adulthood may continue to be a risk factor for successful development. The purpose of this study was to compare shy emerging adults with their non-shy peers in (a) internalizing behaviors, (b) externalizing behaviors, and (c) close relationships. Participants included 813 undergraduate students (500 women, 313 men) from a number of locations across the United States. Results showed that relatively shy emerging adults, both …

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Five Students To Receive Phi Kappa Phi Scholarships, Edwin Smith Aug 2007

Five Students To Receive Phi Kappa Phi Scholarships, Edwin Smith

University of Mississippi News

OXFORD, Miss. - Five University of Mississippi undergraduates have been selected to receive Phi Kappa Phi scholarships this fall.

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Integrating Spirituality And Psychotherapy: Ethical Issues And Principles To Consider, Thomas G. Plante Aug 2007

Integrating Spirituality And Psychotherapy: Ethical Issues And Principles To Consider, Thomas G. Plante

Psychology

Professional and scientific psychology appears to have rediscovered spirituality and religion during recent years, with a large number of conferences, seminars, workshops, books, and special issues in major professional journals on spirituality and psychology integration. The purpose of this commentary is to highlight some of the more compelling ethical principles and issues to consider in spirituality and psychology integration with a focus on psychotherapy. This commentary will use the American Psychological Association's (2002) Ethics Code and more specifically, the RRICC model of ethics that readily applies to various mental health ethics codes across the world. The RRICC model highlights the …

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Compartmentalization Of Hiv-1 In The Secondary Lymphoid Tissues, James Peter Gregson Aug 2007

Compartmentalization Of Hiv-1 In The Secondary Lymphoid Tissues, James Peter Gregson

Theses and Dissertations

Follicular dendritic cells (FDCs) reside in the lymphoid follicles of the secondary lymphoid tissues (sLTs). Following the infection of an individual with human immunodeficiency virus type 1 (HIV-1), viral particles are trapped in massive quantities on the surfaces of FDCs. HIV-1 viral compartments are cell types or tissues between which there is a restriction of virus flow. Compartmentalization of HIV-1 creates numerous sites within the body in which the virus can undergo independent evolution, giving rise to a more diverse total viral population. Given the sessile nature of the FDC, I hypothesized that contrary to common assumptions, FDC-trapped HIV-1 is …

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