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Full-Text Articles in Entire DC Network
Gene Expression During Skeletal Muscle Development: Effect Of In Ovo Igf-1 Administration On Broiler Embryogenesis And Postnatal Myogenesis In The Mouse., Jennifer Jo Richter
Gene Expression During Skeletal Muscle Development: Effect Of In Ovo Igf-1 Administration On Broiler Embryogenesis And Postnatal Myogenesis In The Mouse., Jennifer Jo Richter
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Myogenic Regulatory Factor family (MRFs) is a family of transcription factors that plays a key role in the development of skeletal muscle. MRFs include Myo D, myf-5, myogenin, and MRF-4. Myo D and myf-5 are genes expressed during myoblast proliferation, whereas myogenin and MRF-4 are expressed during myotube formation and differentiation. Insulin-Like Growth Factor 1 (IGF-1) controls muscle development both embryonically and during postnatal growth and repair by inducing myoblast proliferation and muscle hypertrophy. We determined the mRNA expression patterns of the MRFs during muscle development of the chicken and the effect of recombinant human IGF-1 (rhIGF-1) on these …
A Study Of The Relationship Between The Perceived Leadership Style Of Nursing Chairpersons And The Organizational Effectiveness Of Baccalaureate Nursing Programs., Teresa (Terri) Small
A Study Of The Relationship Between The Perceived Leadership Style Of Nursing Chairpersons And The Organizational Effectiveness Of Baccalaureate Nursing Programs., Teresa (Terri) Small
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examined the relationship between the leadership frames of nursing chairpersons as perceived by the faculty and the organizational effectiveness of nursing departments as perceived by faculty and chairpersons. Bolman and Deal's Leadership Orientations Instrument (Other ), Cameron's Assessment of Organizational Structures and Effectiveness in Colleges and Universities, and a demographic questionnaire were sent to 608 faculty. Cameron's Assessment of Organizational Structures and Effectiveness in Colleges and Universities and a demographic questionnaire were sent to 63 chairpersons. The faculty and chairpersons were from 35 schools in the American Association of Colleges of Nursing Southern Region and were in the …
Integrated Responses Of Overstory Sweetgum (Liquidambar Styracuflua L.) Trees To Elevated Atmospheric Carbon Dioxide: A Field Experiment At The Duke Forest Face Site., Jeffrey David Herrick
Integrated Responses Of Overstory Sweetgum (Liquidambar Styracuflua L.) Trees To Elevated Atmospheric Carbon Dioxide: A Field Experiment At The Duke Forest Face Site., Jeffrey David Herrick
Graduate Theses, Dissertations, and Problem Reports (ETD)
I examined the effects of long-term CO2 enrichment on leaf physiology, chemistry and phenology of overstory sweetgum (Liquidambar styraciflua L.) trees that were naturally established within an unmanaged loblolly pine plantation at the Duke Forest Free Air CO2 Enrichment (FACE) experiment. This experiment consisted of three control plots and three plots that had been continuously fumigated with elevated CO2. Elevated CO2 consistently increased photosynthesis in sun and shade leaves. Photosynthesis, however, was stimulated to a greater degree in sun leaves than shade leaves. Elevated CO2 stimulated apparent quantum yield, but there was no interaction between CO2 treatment and leaf position. …
Career Maturity And The Use Of Disability Support Services: The Effect Of Locus Of Control And Career Self -Efficacy For College Students With Disabilities., Bethanne T. Jacobson
Career Maturity And The Use Of Disability Support Services: The Effect Of Locus Of Control And Career Self -Efficacy For College Students With Disabilities., Bethanne T. Jacobson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Each year the number of college students with disabilities increases. For these students, completing a college education is important in order to meet personal goals of self-sufficiency, independence, financial security, and to allow for more effective competition in the job market. This study examined the influence of locus of control and career self-efficacy on the development of career maturity for college students with disabilities. The college students that responded to this study demonstrated high levels of career self-efficacy, career maturity, and an internal locus of control regardless of gender, ethnicity, academic level, disability status, age of onset of disability, or …
The Quality Of Student Effort Of Nontraditional Student Persisters At Glenville State College., Marthenia Ellen Garrett
The Quality Of Student Effort Of Nontraditional Student Persisters At Glenville State College., Marthenia Ellen Garrett
Graduate Theses, Dissertations, and Problem Reports (ETD)
The study sought to determine if a relationship existed between the independent variable of student effort, and the dependent variables of perception of college environment and self-assessment of gains from the college experience for Glenville State College nontraditional student persisters. The study sought to determine if a relationship existed between scores of Glenville State College students for quality of effort and self-evaluation of gains from the college experience compared to the same scores for a normative group. The population included Glenville State College students at least 24 years old with at least 80 hours completed in a baccalaureate program in …
Technologies Of A "New World" Citizenship: American Frontier Narratives In The Late-Twentieth Century., Catherine Courtney Gouge
Technologies Of A "New World" Citizenship: American Frontier Narratives In The Late-Twentieth Century., Catherine Courtney Gouge
Graduate Theses, Dissertations, and Problem Reports (ETD)
Many contemporary American narratives about frontiers emphasize the displacement of the American Dream of infinite resources to a space that is always just beyond our reach and underscore the effect of the frontier as a means for Americans to organize a psychic identity, an identity that achieves stability and coherence through images of exploring and colonizing the frontier. Such texts invoke images of power and control to suggest that to be American we must find and pursue frontiers. Each of the late-twentieth century American narratives I look at in this project testifies to the enduring power of the concept of …
The Significance Of Metallothionein Isoform 3 Gene Expression In Human Prostate Cancer., Rana Dutta
The Significance Of Metallothionein Isoform 3 Gene Expression In Human Prostate Cancer., Rana Dutta
Graduate Theses, Dissertations, and Problem Reports (ETD)
Since the expression of the brain specific metallothionein isoform, MT-3, was shown to be expressed in many, but not all prostate cancers, this gene was transfected into the commonly utilized prostate tumor cell line, PC-3, to study the consequence of MT-3 expression on growth rate and resistance to chemotherapeutic agents. PC-3 cells were stably transfected with MT-3 or MT-1E under control of the constitutive CMV promoter. The levels of MT-3 protein for the 5 overexpressing clones had an average level of 8.3 ng MT-3 per μg protein as assessed by quantitative immunodot blot analysis, and three were picked for further …
Stereotypes, Intolerance, And Policy Supports For Women, Minorities, And Gays: The Diversity Course Impact On Students Pursuing Higher Education In The Sreb States., Christine J. Brehm
Stereotypes, Intolerance, And Policy Supports For Women, Minorities, And Gays: The Diversity Course Impact On Students Pursuing Higher Education In The Sreb States., Christine J. Brehm
Graduate Theses, Dissertations, and Problem Reports (ETD)
Problematic stereotyping of women, minorities, and gays in the United States may become justification for prejudicial attitudes that lead to political intolerance toward members of these marginalized groups. While images of others and a sense of political tolerance develop through childhood and preadult socialization, education beyond high school can have a significant impact on one's reliance on stereotypes when considering the granting or withholding of basic civil rights from marginalized members of society, and may also affect the position one takes towards policies created to benefit women, minorities, and gays. During the fall semester of 2000, an investigation of these …
Manager Characteristics And Support For Worksite Health Promotion Programs That Target Women In Small, Blue-Collar Worksites, Leigh Wiley Belton
Manager Characteristics And Support For Worksite Health Promotion Programs That Target Women In Small, Blue-Collar Worksites, Leigh Wiley Belton
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examined the relationship between manager support for health promotion programs and perceived benefits of health promotion activities, organizational health climate, and personal health behaviors among managers in small, blue-collar textile and light manufacturing worksites in eastern North Carolina. Ninety-eight managers completed a self-administered questionnaire that assessed levels of support for, and interest in, employee health promotion programs, perception of organization climate, and perceived benefits of health promotion activities. Demographic data was also collected. Chi-square and correlation analyses were used to assess statistical significance. No significant associations were found between level of manager support and demographic characteristics, perceived benefits …
Spatial And Temporal Analysis Of Radial Growth In An Appalachian Watershed, Desta Beyene Fekedulegn
Spatial And Temporal Analysis Of Radial Growth In An Appalachian Watershed, Desta Beyene Fekedulegn
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dendrochronological study used dated and measured tree-ring data to examine relationships between radial growth and climate for four hard wood species, yellow-poplar, northern red oak, chestnut oak and red maple, growing on contrasting topographic aspects of a watershed in north-central West Virginia.;The study showed that all species except northern red oak showed significant differences in growth between the mesic and xeric aspects. Where significant differences were found all except chestnut oak exhibited higher growth rates at the mesic aspect.;Yellow-poplar showed a sharp decline in growth from late 1950's to late 1960's, which was evidently caused by several years of …
Parent Distress, Parent Behavior, And Infant Distress During Pediatric Immunizations, Rebecca Suzanne Bernard
Parent Distress, Parent Behavior, And Infant Distress During Pediatric Immunizations, Rebecca Suzanne Bernard
Graduate Theses, Dissertations, and Problem Reports (ETD)
Infant procedural distress historically has been ignored, and the importance of reducing infant distress only recently has been addressed. To understand and manage infant procedural distress, it is essential to examine the correlates and potential predictors of this distress. The purpose of this study was to examine the effects of parent distress on infant procedural distress, the effects of parent behavior on infant distress, and the combined impact of parent distress and behavior on infant distress for 37 parent-infant dyads. Results demonstrated that infant measures were not intercorrelated, only parent self-report measures were intercorrelated, and several measures of parent distress …
Effects Of Concept Mapping On Learning Anatomy And Transfer Of Anatomy Knowledge To Kinesiology In Health Sciences Students, Frances E. Huber
Effects Of Concept Mapping On Learning Anatomy And Transfer Of Anatomy Knowledge To Kinesiology In Health Sciences Students, Frances E. Huber
Graduate Theses, Dissertations, and Problem Reports (ETD)
Purpose. The purpose of this study was to determine the effects of concept mapping on academic achievement in anatomy and transfer of anatomy knowledge to kinesiology and to describe the participants' experience with this new study strategy. Methods. Thirty-eight junior physical therapy and occupational therapy students volunteered to participate in this study in the fall of 2000. Thirty students matriculated into the spring semester and completed the study. All participants signed informed consents. Participants were randomly assigned to a control group or concept mapping group. The concept mappers were instructed with concept mapping. Members of the concept mapping group were …
Order Effects Of Fear And Pain Induction, Kevin Erik Vowles
Order Effects Of Fear And Pain Induction, Kevin Erik Vowles
Graduate Theses, Dissertations, and Problem Reports (ETD)
Although pain responding and emotional states such as fear are highly correlated and appear to interact, the causal relations between these variables have yet to be fully defined. This study sought to further illuminate these relations by investigating how exposure to one of these states (i.e., pain or fear) affects responding to the other. The order in which participants experienced fearful or painful stimuli was manipulated, as well as fear level (i.e., "low" & "high"). Measures of behavioral escape, heart rate, and verbal reports were obtained throughout four experimental trials, as well as rankings of aversiveness for all stimuli encountered. …
Multifractal Analysis Of Memory Usage Patterns, Jonathan Browning Crowell
Multifractal Analysis Of Memory Usage Patterns, Jonathan Browning Crowell
Graduate Theses, Dissertations, and Problem Reports (ETD)
The discovery of fractal phenomenon in computer-related areas such as network traffic flow leads to the hypothesis that many computer resources display fractal characteristics. The goal of this study is to apply fractal analysis to computer memory usage patterns. We devise methods for calculating the Holder exponent of a time series and calculating the fractal dimension of a plot of a time series. These methods are then applied to memory-related data collected from a Unix server. We find that our methods for calculating the Holder exponent of a time series yield results that are independently confirmed through calculation of the …
Stand Dynamics And Disturbance History Of Five Oak -Dominated Old -Growth Stands In The Unglaciated Appalachian Plateau, James Spencer Rentch
Stand Dynamics And Disturbance History Of Five Oak -Dominated Old -Growth Stands In The Unglaciated Appalachian Plateau, James Spencer Rentch
Graduate Theses, Dissertations, and Problem Reports (ETD)
Stand dynamics and disturbance histories of five eastern, oak-dominated old-growth stands were investigated using ecological field sampling techniques, dendrochronologogical methods, and a review of historical resources of original forest composition and patterns of human and natural disturbance. Witness tree tallies from 18th century land surveys show that presettlement forests in the study areas were oak-dominated forests. Quercus alba was, at minimum, twice as abundant as Q. velutina, the second ranked species. Acer saccharum and Fagus grandifolia were among the top ten ranked species at each site; however their importance value was consistently less than one-third the value for Q. alba. …
Exploring Object-Oriented Gis For Watershed Resource Management, Nalishebo Nally Kaunda
Exploring Object-Oriented Gis For Watershed Resource Management, Nalishebo Nally Kaunda
Graduate Theses, Dissertations, and Problem Reports (ETD)
The adoption of object-oriented programming for spatial technological advancement is an emerging trend in GIS. This research seeks to explore Object-Oriented GIS (OOGIS) and its potential application in watershed resource management. OOGIS provides a more intuitive and realistic abstraction of real world features as intelligent objects. The ability to embed behavior, geometry, and attribution with the objects provides considerable advantages in the processing and analysis of geospatial data. The main objective of this research was to design a prototype OOGIS for watershed resource management using the object relational Arclnfo 8.1 Geodatabase. The study builds on the OOGIS concepts of inheritance, …
Rates Of Adoption In A University Course Management System, David Russell Feeney
Rates Of Adoption In A University Course Management System, David Russell Feeney
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research focuses on diffusion of an education innovation in a large, traditional University. In March 1999, the Blackboard digital course management system was installed for enterprise-wide availability at Temple University, the 39th largest university in the United States. The web-enabled database of Temple Blackboard logs the adoption date, course ID, and course title for every Blackboard course, unobtrusively, twenty-four hours a day. Temple Blackboard serves as 4 digital approximation of the cumulative recorder pioneered by B. F. Skinner, recording more than 2800 course adoptions across 30 months, in real time. Temple Blackboard course records provide unprecedented quantity and quality …
Optical Gradation For Crushed Limestone Aggregates, Ken Cheng
Optical Gradation For Crushed Limestone Aggregates, Ken Cheng
Graduate Theses, Dissertations, and Problem Reports (ETD)
The strength and durability of asphalt pavement is directly affected by the characteristics of its main ingredient, mineral aggregate. Besides material strength, research has shown that mixture properties such as particle shape and mixture gradation have a significant affect on the quality of the asphalt concrete. A standard called "Superpave" has been developed which sets forth specifications for material selection and methods for measurement of aggregate properties. These standards require monitoring of aggregate properties, particularly gradation. In this dissertation, the feasibility of developing an optically based method for determining aggregate gradation was explored. The physical system primarily consists of a …
Large -Eddy Simulation Of Ship Wakes, Shaoping Shi
Large -Eddy Simulation Of Ship Wakes, Shaoping Shi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of the present study is to improve our understanding of turbulent wake flows. Large-Eddy Simulation (LES) technique is applied for this purpose. A readily available code was used with necessary modifications. Three dimensional incompressible Navier-Stokes equations are solved in non-orthogonal curvilinear coordinates. Finite-volume approach is implemented on a non-staggered grid. The core of the numerical scheme is a fractional step method. The overall accuracy of the method is second order in both space and time.;The LES approach has been validated for four cases: channel flow, flow past a square body, a shear layer flow, and open channel flow. …
Investigation Of Diesel Soot-Mediated Oils And Additive Package On Wear, Santhosh Kumar Balla
Investigation Of Diesel Soot-Mediated Oils And Additive Package On Wear, Santhosh Kumar Balla
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the current study, a statistically designed experiment was developed to study the effects of soot contaminated engine oil on wear. The variables that were considered were the Base stock (Group1, Group2), Dispersant level and ZDP level. The above three variables were formulated at two levels: Low (-1), and High (1), which resulted in 23 matrix (8 oil blends). Soot was also one of the variables and was tested at three levels: Low (-1), Medium (0) and High (1).;A three-body-wear machine was employed to simulate and estimate the extent of wear, as it is very difficult to test each oil …
Fuzzy Logic Cost Estimation Method For High Production Volume Components, Shirley Jean Copen
Fuzzy Logic Cost Estimation Method For High Production Volume Components, Shirley Jean Copen
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this research is to develop fuzzy logic cost models that estimate the cost of a component based on the component's geometric shape, size, material and manufacturing process. The research is focused on components made from high production quantity processes i.e. stamping, injection molding, rolling and extrusion. However, the method may also be used for other types of manufacturing processes. The method is useful to both engineers and cost estimators whenever an estimated cost is desired. Engineers and cost estimators may use the method to obtain the cost of components or products of similar design without a detailed …
Electrical Characterization Of Thin Film Nanostructure Templates, Christopher James Garman
Electrical Characterization Of Thin Film Nanostructure Templates, Christopher James Garman
Graduate Theses, Dissertations, and Problem Reports (ETD)
An improved apparatus for anodizing aluminum films on Si substrates is presented. In addition, an explanation is given for adapting the system to SiC and glass substrates. The system presented is optimized for throughput and safety to focus on volume production. MOS capacitors created with the system are analyzed with capacitance-voltage measurement techniques to provide insight into device operation. Ni is deposited into porous alumina templates to create Ni nanostructures.
Study Of The Rheological Properties Of Nomex Fibrids, Long Han
Study Of The Rheological Properties Of Nomex Fibrids, Long Han
Graduate Theses, Dissertations, and Problem Reports (ETD)
Paints and caulks typically contain (spherical) fumed silica particulates as viscosity enhancers. A similar viscosity enhancement can be achieved by using aramid fibrids. Aramid fibrids are believed to form microstructures in suspensions because of the "space-filling" nature of their shapes and thus provide a convenient means of introducing desired rheological behavior for various commercial applications.;The flow responses of aramid fibrids dispersed in mixtures of corn syrup and water were determined in dynamic shear, steady shear, low shear capillary, and extensional stretching flows. Yield stress, strong shear thinning, thixotropy, and strong dispersion effects were observed, and these are consistent with observed …
New Catalysts For Syngas Production From Carbon Dioxide And Methane, Mahesh Venkataraman Iyer
New Catalysts For Syngas Production From Carbon Dioxide And Methane, Mahesh Venkataraman Iyer
Graduate Theses, Dissertations, and Problem Reports (ETD)
The performance of cobalt tungsten carbide material was investigated for CH4/CO2 reforming. The catalyst was found to convert to a very stable, very active, form when heated in CH4/CO 2 at 850°C and 5 atm. Even after 90 hours on stream, CH4 and CO2 rates of 1.3 and 1.25 mmol/min/g respectively are obtained, with CO yields of 76% and H2/CO ratio close to unity. XRD patterns suggest a phase transformation to WC+Co+C. SEM images suggest formation of encapsulated carbon and whisker carbon.;The kinetics of CH4/CO2 reforming was studied under differential conditions over 500--600°C. The observed rates seem to follow a …
Kinematic Synthesis Of A Well Service Machine, Prashanth Kaparthi
Kinematic Synthesis Of A Well Service Machine, Prashanth Kaparthi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Blowout preventers are used in the oil well industry to prevent accidental oil fires, and guide valves are assembled atop the preventers. The current solution is to use cranes, as this is time-consuming and expensive, a solution using an appropriate four-bar mechanism for this purpose was contemplated, using Burmester theory and the four-position synthesis method.;The angles and distance of the four positions were calculated and the data obtained was specified as input for the synthesis of the four-bar mechanism using four-position synthesis programmed in MATLAB(TM). The moving pivots (k) and the ground pivots (m) were obtained from the program and …
Simulated Annealing Heuristics For The Dynamic Facility Layout Problem, Saravanan Kuppusamy
Simulated Annealing Heuristics For The Dynamic Facility Layout Problem, Saravanan Kuppusamy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Today's consumer market demands that manufacturers must be competitive. This requires the efficient operation of manufacturing plants and their ability to quickly respond to changes in product mix and demand. Studies show that material handling cost makes up between 20 and 50 percent of the total operating cost. Therefore, this thesis considers the problem of arranging and rearranging (when there are changes in product mix and demand) manufacturing facilities such that material handling and rearrangement costs are minimized. This problem is called the dynamic facility layout problem. In this thesis, three simulated annealing heuristics are presented for the dynamic facility …
Development Of Environmental Health And Safety Database For Small Communities, Ragava S. Nadig
Development Of Environmental Health And Safety Database For Small Communities, Ragava S. Nadig
Graduate Theses, Dissertations, and Problem Reports (ETD)
The National Environmental Services Center (NESC) is a group of programs, national in scope, that provide a variety of environmental services directly to small community officials, engineers, technicians, regulatory officials, and private citizens.;The primary mission of each of the NESC programs is to protect public health and the environment of America's small and rural communities-those communities of less than 10,000 people. The NESC programs provide information, technical assistance, and training to help small communities deal with their wastewater, drinking water, and solid waste treatment issues.;Thousands of informational materials pass through the organization each year. This material ranges from manufacturing product …
Simulation Of Heavy-Duty Hybrid Electric Vehicles, Anjali Devi Nennelli
Simulation Of Heavy-Duty Hybrid Electric Vehicles, Anjali Devi Nennelli
Graduate Theses, Dissertations, and Problem Reports (ETD)
Microsoft Excel and ADvanced VehIcle SimulatOR (ADVISOR) were used to simulate the driving conditions of heavy-duty hybrid electric vehicles over various driving cycles in an attempt to optimize their design and control. The fuel economy data thus obtained were compared with those of the in-use heavy-duty hybrid electric vehicles. For this the drive cycles are modified to represent realistic expectations of the dynamic performance of vehicles. The cycles used are "Central Business District" cycle (CBD), "Urban Dynamometer Driving Schedule" cycle (UDDS), "Manhattan" cycle and "City Suburban Heavy Vehicle Cycle" (CSHVC). The vehicle considered for simulations was a transit bus, which …
Moisture Diffusion Through Vinyl Ester/Clay Nanocomposites, Apoorva Paresh Shah
Moisture Diffusion Through Vinyl Ester/Clay Nanocomposites, Apoorva Paresh Shah
Graduate Theses, Dissertations, and Problem Reports (ETD)
Moisture diffusion was studied through vinyl ester samples containing up to 5 wt% montmorillonite clay; two different kinds of clay surface treatments were employed to make the clay compatible with the vinyl ester resin. These nanocomposites were characterized using differential scanning calorimetry (DSC), mechanical property measurements, x-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM pictures showed that the clay platelets were either exfoliated or intercalated, and the two different surface treatments resulted in different dispersion characteristics. All the samples were post cured, and the diffusivity of moisture was measured by soaking the samples in water at 25°C and noting …
Fabrication Of Thin Film Nanoscale Alumina Templates, Paul B. Sines
Fabrication Of Thin Film Nanoscale Alumina Templates, Paul B. Sines
Graduate Theses, Dissertations, and Problem Reports (ETD)
Semiconductor nanostructures have superior electronic and optical properties that are expected to play an important role in 21st century electronic and photonic devices. Recognizing this potential, semiconductor nanostructures have been the focus of research over the past 25 years, and many ultra-high performance devices have been demonstrated. While the potential of this class of devices is clear, their commercial applications have been limited by the lack of a fabrication process suited to economical volume production. The initial method of nanostructure fabrication using electron beam lithography and reactive ion etching is not considered practical due to its high cost and low …