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2009

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Shrinkage Estimation Of Expression Fold Change As An Alternative To Testing Hypotheses Of Equivalent Expression, Zahra Montazeri, Corey M. Yanofsky, David R. Bickel Aug 2009

Shrinkage Estimation Of Expression Fold Change As An Alternative To Testing Hypotheses Of Equivalent Expression, Zahra Montazeri, Corey M. Yanofsky, David R. Bickel

COBRA Preprint Series

Research on analyzing microarray data has focused on the problem of identifying differentially expressed genes to the neglect of the problem of how to integrate evidence that a gene is differentially expressed with information on the extent of its differential expression. Consequently, researchers currently prioritize genes for further study either on the basis of volcano plots or, more commonly, according to simple estimates of the fold change after filtering the genes with an arbitrary statistical significance threshold. While the subjective and informal nature of the former practice precludes quantification of its reliability, the latter practice is equivalent to using a …

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Summer 2009 Commencement - The University Of Texas Of The Permian Basin, The University Of Texas Permian Basin Aug 2009

Summer 2009 Commencement - The University Of Texas Of The Permian Basin, The University Of Texas Permian Basin

UTPB Commencement Programs

Summer 2009 Commencement - August 7, 2009

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Analogue Hawking Radiation In A Dc-Squid Array Transmission Line, P D. Nation, M. P. Blencowe, A. J. Rimberg, E. Buks Aug 2009

Analogue Hawking Radiation In A Dc-Squid Array Transmission Line, P D. Nation, M. P. Blencowe, A. J. Rimberg, E. Buks

Dartmouth Scholarship

We propose the use of a superconducting transmission line formed from an array of dc-SQUID’s for investigating analogue Hawking radiation. Biasing the array with a space-time varying flux modifies the propagation velocity of the transmission line, leading to an effective metric with an horizon. Being a fundamentally quantum mechanical device, this setup allows for investigations of quantum effects such as back-reaction and analogue space-time fluctuations on the Hawking process.

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Ua1c3 Portraits Photos, Wku Archives Aug 2009

Ua1c3 Portraits Photos, Wku Archives

WKU Archives Collection Inventories

Portraits of people not otherwise categorized. This section includes unidentified images.

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Commencement Convocation Program, Usf, August 8, 2009, University Of South Florida Aug 2009

Commencement Convocation Program, Usf, August 8, 2009, University Of South Florida

USF Graduation and Convocation Programs

King O'Neal Scholar - Kimberly Michelle Patarini; President's Global Leadership Award - Indira Chakravarty; Outstanding Senior - Anthony Le

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Clemson Commencement Program, August 2009, Clemson University Aug 2009

Clemson Commencement Program, August 2009, Clemson University

Clemson Commencement Programs

No abstract provided.

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Geometry Of The Trachyte Mesa Intrusion, Henry Mountains, Utah: Implications For The Emplacement Of Small Melt Volumes Into The Upper Crust, Paul H. Wetmore, Charles B. Connor, Sarah E. Kruse, Sean Callihan, Geoffrey Pignotta, Ciprian Stremtan, Andrea Burke Aug 2009

Geometry Of The Trachyte Mesa Intrusion, Henry Mountains, Utah: Implications For The Emplacement Of Small Melt Volumes Into The Upper Crust, Paul H. Wetmore, Charles B. Connor, Sarah E. Kruse, Sean Callihan, Geoffrey Pignotta, Ciprian Stremtan, Andrea Burke

Geology Faculty Publications

The Trachyte Mesa intrusion is one of several small satellite bodies to the larger intrusions of the Henry Mountains, Utah. Most previous studies have worked under the assumptions that Trachyte Mesa is blister shaped and intruded into flat and gently NW dipping strata. In this study we combine structural and geophysical data sets to constrain the structural geology of the host lithologies and the unmodified geometry of the intrusion. Trachyte Mesa intrudes a series of northeast trending upright and open folds formed within the Jurassic Entrada Formation. Truncation of these folds at the contact with the overlying Curtis/Summerville formations indicates …

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Structure-Property Relations For Monotonic And Fatigue Loading Conditions For A Powder Metal Steel, Paul Galon Allison Aug 2009

Structure-Property Relations For Monotonic And Fatigue Loading Conditions For A Powder Metal Steel, Paul Galon Allison

Theses and Dissertations

Developing a multi-scale math-based model for powder metallurgy (PM) component design and performance prediction requires experimental calibration and validation. Monotonic tension, compression and torsion tests were performed at various porosity and temperatures to obtain the set of plasticity and damage constants required for model calibration. Uniaxial fatigue experiments were performed to determine the constants required for capturing the low cycle and high cycle fatigue characteristics of a PM steel. Tension tests on two different Bridgman notched specimens were undertaken to study the damage-triaxiality dependence for model validation. Validation of the model is further being performed by monotonic component testing using …

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Using Random Projections For Dimensionality Reduction In Identifying Rogue Applications, Travis Levestis Atkison Aug 2009

Using Random Projections For Dimensionality Reduction In Identifying Rogue Applications, Travis Levestis Atkison

Theses and Dissertations

In general, the consumer must depend on others to provide their software solutions. However, this outsourcing of software development has caused it to become more and more abstract as to where the software is actually being developed and by whom, and it poses a potentially large security problem for the consumer as it opens up the possibility for rogue functionality to be injected into an application without the consumer’s knowledge or consent. This begs the question of ‘How do we know that the software we use can be trusted?’ or ‘How can we have assurance that the software we use …

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Revised Crustal Architecture Of The Southeastern Carpathian Foreland From Active And Passive Seismic Data, Dana M. Enciu, Camelia C. Knapp, James H. Knapp Aug 2009

Revised Crustal Architecture Of The Southeastern Carpathian Foreland From Active And Passive Seismic Data, Dana M. Enciu, Camelia C. Knapp, James H. Knapp

Faculty Publications

Integration of active and passive source seismic data is employed in order to study the nature of the relationships between crustal seismicity and geologic structures in the southeastern (SE) Carpathian foreland of Romania and the possible connection with the Vrancea Seismogenic Zone (VSZ) of intermediatedepth seismicity, one of the most active earthquakeprone areas in Europe. Crustal epicenters and focal mechanisms are correlated with four deep industry seismic profiles, the reprocessed Danube and Carpathian Integrated Action on Process in the Lithosphere and Neotectonics (DACIA PLAN) profile and the Deep Reflection Acquisition Constraining Unusual Lithospheric Activity II and III (DRACULA) profiles in …

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Workforce Gap Analysis Of A Rural Community College's Training And Local Business & Industry Needs, Delfina Acosta Wilson Aug 2009

Workforce Gap Analysis Of A Rural Community College's Training And Local Business & Industry Needs, Delfina Acosta Wilson

Theses and Dissertations

In Mississippi, the bulk of the responsibility to conduct workforce training falls on the community colleges. With the recent trends of large industry relocating overseas, layoffs, and plant closures, these challenges have become prevalent in rural America. Through the development and delivery of workforce programs to local business and industry, community colleges have made substantial contributions to the economic and community development of communities across the nation. The gap between well-paying jobs and unemployed, undereducated workers continues to be a problem. In order to prepare the supply of the unemployed/underemployed and to meet industry's demand, workforce and education systems need …

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Ethnicity And Academic Achievement By Malaysian Eighth Grade Students, Hui Peng Liew Aug 2009

Ethnicity And Academic Achievement By Malaysian Eighth Grade Students, Hui Peng Liew

Theses and Dissertations

Malaysia’s preferential policies have reduced the educational attainment gap between ethnic groups. However, we know less about their effects on ethnic differences in academic achievement. With this point in mind, the overall goal of this study is to examine inter-ethnic differences in mathematics and science achievement based on the cohort of eighth grade (Form 2) Malaysian students who participated in the Third International Mathematics and Sciences Study Repeat Project (TIMMS-R). It sought to determine the extent to which theoretical propositions of the structural and cultural perspectives developed to explain achievement differences in the United States are applicable in Malaysia. Malaysia …

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Infinite Semipositone Systems, Jinglong Ye Aug 2009

Infinite Semipositone Systems, Jinglong Ye

Theses and Dissertations

We study positive solutions to classes of nonlinear elliptic singular problems of the form: -Δpu = λ g(u) uα in Ω u = 0 on δΩ where Ω is a bounded domain in ℝN, N ≥ 1 with smooth boundary δΩ, &lambda¸ is a positive parameter, α ∈(0; 1), Δpu := div(⌊∇u⌋p-2 ∇u); p > 1 is the p-Laplacian operator, and g is a smooth function. Such elliptic problems naturally arise in the study of steady state reaction diffusion processes. In particular, we will be interested in the challenging new class of problems when g(0) < 0 (hence lims→0+g(s) sα = - ∞ which we refer to as infinite semipositone problems. Our focus is on existence results. We obtain results for the single equation case as well as to the case of systems. We use the method of sub-super solutions to prove our results. The results in this dissertation provide a solid foundation for the analysis of such infinite semipositone problems.

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High-Spin Triaxial Strongly Deformed Structures And Quasiparticle Alignments In 168hf, Ram Babu Yadav Aug 2009

High-Spin Triaxial Strongly Deformed Structures And Quasiparticle Alignments In 168hf, Ram Babu Yadav

Theses and Dissertations

This dissertation research consists of two parts: (i) investigation of quasiparticle alignments at high-spins and (ii) identification of triaxial strongly deformed structures in 168Hf. A γ-ray spectroscopy study was carried out, as well as lifetime measurements using the Doppler-shift Attenuation Method (DSAM). The two data sets used for this research were obtained from experiments at Argonne National Laboratory employing the reaction 96Zr(76Ge, 4n). The decay γ-rays were measured with the Gammasphere Compton-suppressed Ge spectrometer array. A self-supporting 96Zr foil ("thin target") was used in the first experiment, while in the second experiment the 96Zr target material was evaporated onto a …

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A Study Of Mississippi Community And Junior College Dual Enrollment Collaboration Practices With Secondary Schools And Parents Of Home-Schooled Students, Lanell Bagwell Kellum Aug 2009

A Study Of Mississippi Community And Junior College Dual Enrollment Collaboration Practices With Secondary Schools And Parents Of Home-Schooled Students, Lanell Bagwell Kellum

Theses and Dissertations

This study provides data from an existing review of secondary data and a survey of dual enrollment managers on the topic of Mississippi Community and junior college’s dual enrollment collaborations with secondary schools and parents of home-schooled students. Dual enrollment, also known as dual credit, concurrent enrollment, and credit based transition, refers to the participation in college-level courses and the earning of college credits by high school students. Dual enrollment has been described as providing benefits such as increasing access to postsecondary education, increasing the rigor of the high school curriculum, savings in time and expenses toward earning a college …

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Student Progress Monitoring: Teachers' Perceptions, Darlene H. Barron Aug 2009

Student Progress Monitoring: Teachers' Perceptions, Darlene H. Barron

Theses and Dissertations

The Mississippi Student Progress Monitoring System (MSPMS) was developed for the Mississippi Department of Education to be used to monitor student progress on the state framework which constitutes the curriculum for each course taught in Mississippi schools. This study was designed to investigate teachers’ perceptions of the implementation and use of the MSPMS. Research question 1 was to determine if the various independent variables of age, level of education, years of experience as an educator, level of school where teaching, perceived level of computer and/or technology comfort, perceived level of computer and/or technology experience, subject area taught, number of MSPMS …

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The Perceptions Of Public School Administrators Toward Technology Effectiveness And Adequacy In Curriculum And Instruction In The Golden Triangle Public Schools Of Mississippi, Wendy Lynn Hubbard Aug 2009

The Perceptions Of Public School Administrators Toward Technology Effectiveness And Adequacy In Curriculum And Instruction In The Golden Triangle Public Schools Of Mississippi, Wendy Lynn Hubbard

Theses and Dissertations

The purpose of this study was to determine the perceptions of public school administrators toward technology effectiveness and adequacy in curriculum and instruction in the Golden Triangle Public Schools of Mississippi and the demographic variables that may affect the perceptions. The population consisted of 56 public school administrators for the 2008-2009 school year in the Starkville, Okitbbeha County, West Point, Clay County, Columbus, and Lowndes County school districts. The variables that were studied were the perceptions of the public school administrators toward technology effectiveness in curriculum and instruction, the perceptions of the public school administrators toward technology adequacy in curriculum …

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Assessing The Import Demand Of Wooden Furniture In The United States And Its Impact On The Furniture Industry, Yang Wan Aug 2009

Assessing The Import Demand Of Wooden Furniture In The United States And Its Impact On The Furniture Industry, Yang Wan

Theses and Dissertations

The U.S. furniture industry has faced the challenge from increasing imports of furniture from foreign countries over the last decades. In the first part of this thesis, the import pattern of wooden bedroom furniture and the antidumping investigation against China were summarized, and furthermore, intervention analysis was employed to assess its impacts on the import value and unit price of China. The results revealed that the impact on import values was temporary but there was no significant impact on unit prices. The traditional suppliers have been substituted by the newly developing countries such as China and Vietnam. In the second …

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Axial Collapse Of Thin-Walled, Multi-Corner Single- And Multi-Cell Tubes, Ali Najafi Aug 2009

Axial Collapse Of Thin-Walled, Multi-Corner Single- And Multi-Cell Tubes, Ali Najafi

Theses and Dissertations

Nonlinear explicit finite element (FE) simulations are used to study the axial collapse behavior of multi-corner. single- and multi-cell crush tubes under quasi-static and dynamic loading conditions. It is shown that the higher hardening modulus and yield stress increases the crush force and its resulting energy absorption. Moreover, the multi-cell tubes are found to have complicated collapse modes because of the geometrical complexity of the corner region unlike single-cell tubes. it was also shown that the stress wave propagation has a significant effect on the formation of crush modes in the tubes without imperfections whereas this effect can be ignored …

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Development And Validation Of A Grade Adaptive Regeneration Strategy For A Parallel Hybrid Vehicle, Matthew Tyler Young Aug 2009

Development And Validation Of A Grade Adaptive Regeneration Strategy For A Parallel Hybrid Vehicle, Matthew Tyler Young

Theses and Dissertations

As requirements related to vehicle fuel economy and emissions continue to increase, automakers are developing complex hybrid powertrain control systems to meet these requirements. With the increase in powertrain complexity and performance requirements of a hybrid vehicle, embedded control systems have become an integral part of these vehicles. A hybrid’s ability to recapture energy normally lost as heat during braking situations can account for an increase in efficiency of up to 28%. This study explores the use of a grade adaptive regeneration strategy for improving a hybrid vehicle’s energy recapture capability. The concept of the grade adaptive regeneration strategy was …

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Distributed Simulation Of Power Systems Using Real Time Digital Simulator, Krishnanjan Gubba Ravikumar Aug 2009

Distributed Simulation Of Power Systems Using Real Time Digital Simulator, Krishnanjan Gubba Ravikumar

Theses and Dissertations

The simulation of power system behavior, especially transient behavior, helps us in the analysis and planning of various power systems. However, power systems are usually highly complex and geographically distributed. Therefore system partitioning can be used to allow for sharing resources in simulation. In this work, distributed simulations of power system models have been developed using an electromagnetic transient simulator, namely Real Time Digital Simulator (RTDS). The goal is to demonstrate and assess the feasibility of both non-real-time and real-time simulations using the RTDS in a geographically distributed scenario. Different protocols and options used in the communication between power systems …

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Using Remote Sensing To Monitor Herbicide Injury And Biomass Of Waterhyacinth, Wilfredo Robles Aug 2009

Using Remote Sensing To Monitor Herbicide Injury And Biomass Of Waterhyacinth, Wilfredo Robles

Theses and Dissertations

Aquatic vegetation plays an important role in the ecological interactions and processes within a water body. However, the presence of the invasive exotic aquatic plant species, waterhyacinth [Eichhornia crassipes (Mart.) Solms], negatively affects those interactions as well as interfering with water use for recreation and navigation. An implemented management plan for waterhyacinth control relies on the use of herbicides. Efficacy is commonly assessed using visual injury and control ratings as well as estimating biomass. The problem is that those approaches are labor intensive only assessing single points throughout the entire water body. Therefore, technology like remote sensing, which is the …

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Development And Evaluation Of Image Registration And Segmentation Algorithms For Long Wavelength Infrared And Visible Wavelength Images, Lequn Hu Aug 2009

Development And Evaluation Of Image Registration And Segmentation Algorithms For Long Wavelength Infrared And Visible Wavelength Images, Lequn Hu

Theses and Dissertations

In this thesis, algorithms for image registration and segmentation are developed to locate and identify DU penetrators and associated metal projectile debris on or near the surface at the US DoD firing ranges and proving grounds. The proposed registration algorithm supports fusing the LWIR and visible images. Control points are indentified by area-base detection and followed by eliminating outliers. Associated with bilinear interpolation, the gravity centers of control points are used to estimate the transformation parameters. The segmentation with a statistical detector is developed to improve the fusion result. The power spectrum density is invoked to extract and identify the …

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Development Of A Decision Support System Framework For The Improvement Of A Surface Transportation Security Training Program, Justin Marshal Warren Aug 2009

Development Of A Decision Support System Framework For The Improvement Of A Surface Transportation Security Training Program, Justin Marshal Warren

Theses and Dissertations

The purpose of this thesis is to develop a decision support system framework that could be used for improving a surface transportation security training program. The program provides domain awareness, reporting, and information sharing capabilities in order to help protect the nation’s critical infrastructure and key resources. The thesis specifically focuses on a program that deals with the nation’s roadway sector. Literature reviews were conducted on training performance, service quality, and decision support systems to gain a basic understanding of some of the elements that will be incorporated in the decision support system framework. A discussion of freight flow analysis …

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Measuring The Effects Of Supranational Governing Structures On Corruption Through An Economic Experiment, Wenshuang Wang Aug 2009

Measuring The Effects Of Supranational Governing Structures On Corruption Through An Economic Experiment, Wenshuang Wang

Theses and Dissertations

Corruption has been attracting a great deal of attention recently and various organizations together with free and active media have made great efforts to bring this issue to the forefront of the governance debate. This research uses experimental methods to investigate the effect of supranational governing structures on corruption. A second objective of this research is to investigate the effectiveness of the model for the United Nations missions given that transparency and accountability in the presence of these kinds of supranational governing structures are generally weak. Results of this research show that the presence of supranational governing structures leads to …

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Balancing Work And Family Responsibilities As An Extension 4-H Agent, Joseph Richard Rhea Aug 2009

Balancing Work And Family Responsibilities As An Extension 4-H Agent, Joseph Richard Rhea

Theses and Dissertations

A career with Extension can be very rewarding, but also very demanding, as employees have to balance job stress and time demands with family goals and demands. The very nature of Extension work brings some tension between the job and family, and employees need to be equipped to make decisions about personal and work time. If the Extension System is to be a leader of positive change for individuals, families and communities, its employees must be able to find that balance. Previous research with 4-H agents has identified 23 job responsibilities that were stressors, with some studies showing a direct …

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A Forest Product/Bioenergy Mill Location And Decision Support System Based On A County-Level Forest Inventory And Geo-Spatial Information, Thomas Luke Jones Aug 2009

A Forest Product/Bioenergy Mill Location And Decision Support System Based On A County-Level Forest Inventory And Geo-Spatial Information, Thomas Luke Jones

Theses and Dissertations

The forest products industry is a major component of the economic base for many states in the southeastern United States. Forest inventories that are precise within a 50- to 80-mile mill working circle and the availability of decision support tools for locating mills are of primary importance in attracting and sustaining the industry. This research focuses on the current status of the State of Mississippi's efforts to provide forest inventory information to attract forest industry and balance potentially increased utilization due to new markets with resource sustainability. A pilot study is described that integrates a decision support system (DSS) in …

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An Evaluation Of Readiness Factors For Online Education, Delena Rae Lang Hukle Aug 2009

An Evaluation Of Readiness Factors For Online Education, Delena Rae Lang Hukle

Theses and Dissertations

Online education has grown substantially over the years because of the flexibility it has given the student in acquiring an education. For many, higher education is now a reality instead of just a dream. With this educational format, traditional and non-traditional students are taking classes to obtain a degree or pursue lifelong learning. Unfortunately, some students are taking online classes without being equipped with the necessary skills required for successful completion. The purpose of the evaluation was to investigate the readiness factors of students taking online classes. The Readiness for Education At a Distance Indicator (READI) assessment was completed by …

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Analysis Of Multi-Attribute Multi-Unit Procurement Auctions And Capacity-Constrained Sequential Auctions, Zhuoxiu Zhang Aug 2009

Analysis Of Multi-Attribute Multi-Unit Procurement Auctions And Capacity-Constrained Sequential Auctions, Zhuoxiu Zhang

Theses and Dissertations

This dissertation examines an iterative multi-attribute auction for multi-unit procurement in the first part. A multi-unit allocation problem that allows order split among suppliers is formulated to improve the market efficiency. Suppliers are allowed to provide discriminative prices over units based on their marginal costs. A mechanism called Iterative Multiple-attribute Multiple-unit Reverse Auction (IMMRA) is proposed based on the assumption of the modified myopic best-response strategies. Numerical experiment results show that the IMMRA achieves market efficiency in most instances. The inefficiency occurs occasionally on the special cases when cost structures are significantly different among suppliers. Numerical results also show that …

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The Level Of Persistence In High School Drop-Outs Enrolled In The Ged Program At A Rural Community College, Sonja V. Mccaskill-Mitchell Aug 2009

The Level Of Persistence In High School Drop-Outs Enrolled In The Ged Program At A Rural Community College, Sonja V. Mccaskill-Mitchell

Theses and Dissertations

The purpose of the study was to identify factors that affect whether or not students persist in completion of the GED. Exploration of characteristics of participants that do/do not persist and obtain their GED not only assists the high school dropout, potential GED recipient, and GED program staff, but also society as a whole. More information was needed in order to effectively address issues that adversely affect students enrolled in GED programs at rural community colleges. Therefore, examination of the GED program’s student database contributed in finding factors that both help and impede student success. Factors identified were investigated in …

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