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Articles 17791 - 17820 of 19628
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Insertion Of Secondary Structure Downstream Of The Poly (A) Signal Inhibits Transcription Termination, Christopher S. Fischer
Insertion Of Secondary Structure Downstream Of The Poly (A) Signal Inhibits Transcription Termination, Christopher S. Fischer
Theses and Dissertations
No abstract provided.
Maternal Role Adaptation Throughout Pregnancy In Primiparas, Desiree H. Wessman
Maternal Role Adaptation Throughout Pregnancy In Primiparas, Desiree H. Wessman
Theses and Dissertations
No abstract provided.
Criteria-Based Content Analysis Of Children's Statements About A Mock Crime Compared With The Evaluations Of Naive Subjects, Marcus Jacques Choi Tye
Criteria-Based Content Analysis Of Children's Statements About A Mock Crime Compared With The Evaluations Of Naive Subjects, Marcus Jacques Choi Tye
Theses and Dissertations
No abstract provided.
Adsorption Of 2,4-Dichlorophenoxyacetic Acid By Peat Using A Continuous Flow Column System, Steven L. Johnson
Adsorption Of 2,4-Dichlorophenoxyacetic Acid By Peat Using A Continuous Flow Column System, Steven L. Johnson
Theses and Dissertations
No abstract provided.
Differences In Cognitive Functioning Among Adult Children Of Alcoholics And Non-Alcoholics, Pamela M. Samson
Differences In Cognitive Functioning Among Adult Children Of Alcoholics And Non-Alcoholics, Pamela M. Samson
Theses and Dissertations
No abstract provided.
Influence Of Species Additions And Deletions On Food Web Stability, Nichole M. Levang-Brilz
Influence Of Species Additions And Deletions On Food Web Stability, Nichole M. Levang-Brilz
Theses and Dissertations
No abstract provided.
The Validation Of A Screening Instrument For The Identification Of At-Risk Preschool Children, Michelle Muffenbier
The Validation Of A Screening Instrument For The Identification Of At-Risk Preschool Children, Michelle Muffenbier
Theses and Dissertations
No abstract provided.
Classification Of Satellite Images Using A Large Neural Network, Robert Anthony Quintus
Classification Of Satellite Images Using A Large Neural Network, Robert Anthony Quintus
Theses and Dissertations
No abstract provided.
Polonium-210 Alpha Particle Emission From Human Hair, Hassaan A. Alkhatib
Polonium-210 Alpha Particle Emission From Human Hair, Hassaan A. Alkhatib
Theses and Dissertations
No abstract provided.
The Relationship Between Social Support And Post Traumatic Stress Disorder In Rural And Outpost Nurses, June Denise Dobbyn
The Relationship Between Social Support And Post Traumatic Stress Disorder In Rural And Outpost Nurses, June Denise Dobbyn
Theses and Dissertations
No abstract provided.
Sexual Activity As A Risk Factor In Adolescent Female Suicide Attempts, Anne Cushing
Sexual Activity As A Risk Factor In Adolescent Female Suicide Attempts, Anne Cushing
Theses and Dissertations
No abstract provided.
Cohesion Of Discourse In Dialogue Journaling Of Adolescents With Language-Learning Disabilities, Jocelyn L. D Wiebe
Cohesion Of Discourse In Dialogue Journaling Of Adolescents With Language-Learning Disabilities, Jocelyn L. D Wiebe
Theses and Dissertations
No abstract provided.
Type I Camp-Dependent Protein Kinase Is Associated With Cardiac Myocyte Sarcolemma, Maureen L. Robinson
Type I Camp-Dependent Protein Kinase Is Associated With Cardiac Myocyte Sarcolemma, Maureen L. Robinson
Theses and Dissertations
No abstract provided.
Electric Utility Load Forecasting Via Neural Networks : A Case Study, Del R. Nelson
Electric Utility Load Forecasting Via Neural Networks : A Case Study, Del R. Nelson
Theses and Dissertations
No abstract provided.
Modulation Of The Humoral Immune Response By The Sympathetic Nervous System, Tracey Lynn Spriggs
Modulation Of The Humoral Immune Response By The Sympathetic Nervous System, Tracey Lynn Spriggs
Theses and Dissertations
The immune system is critical for the maintenance of homeostasis. Due to the fact that a coordinated effort between organ systems is required for internal stability, it has been postulated that the immune system interacts with the neuroendocrine system. Clinical, anatomical, and receptor studies have provided evidence for a bi-directional communication between the nervous and immune systems. The goal of the present studies was to determine the potential influence of the sympathetic nervous system (SNS) on the primary antibody forming cell (AFC) response.
The adrenergic neurotoxin, 6-hydroxydopamine (6-OHDA), has been utilized extensively by researchers to explore the possible relationship between …
A Comparison Of Heart Rate Counting And Perceived Exertion Monitoring As A Means Of Learning Correct Exercise Intensity, Karyn Lyn Entzion
A Comparison Of Heart Rate Counting And Perceived Exertion Monitoring As A Means Of Learning Correct Exercise Intensity, Karyn Lyn Entzion
Theses and Dissertations
No abstract provided.
Characterization Of The Chromatin Structure Of The Sv40 Promoter Region By Deletional Analysis, Michael A. Riley
Characterization Of The Chromatin Structure Of The Sv40 Promoter Region By Deletional Analysis, Michael A. Riley
Theses and Dissertations
No abstract provided.
Regulatory Analysis Of Vimentin Expression In Metastatic Versus Nonmetastatic Breast Cancer Cell Lines, Danielle N. Bird
Regulatory Analysis Of Vimentin Expression In Metastatic Versus Nonmetastatic Breast Cancer Cell Lines, Danielle N. Bird
Theses and Dissertations
The intermediate filament gene family, composed of six classes, shows both tissue and development-specific expression. Vimentin is a unique member of the intermediate filament protein family: although it is expressed in cells of mesenchymal origin, vimentin may also be expressed with other intermediate filament proteins during early stages of development. In some cases, as differentiation continues, vimentin is normally down-regulated whereas other intermediate filament proteins, like desmin, glial fibrillary acidic protein, or neurofilaments are turned on in muscle, glial cells, or neurons, respectively. In some metastatic cancers, including breast and prostate cancers, vimentin is aberrantly expressed, despite the embryonic origin …
Expression, Purification And Characterization Of Hepatitis C Virus Core Protein From E.Coli Using A Chemically Synthesized Gene (1), And Cloning, Expression, Purification And Characterization Of The Major Core Protein (P26) From Equine Infectious Anaemia Virus, Ashley James Birkett
Theses and Dissertations
The hepatitis c virus (HCV) core gene has been chemically synthesized and used to direct the expression of core protein in Escherichia coli (E.coli). When cloned downstream of the inducible T7 promotor the core gene directed the expression of a soluble protein with a molecular weight of 22 kDa. Under native conditions the protein behaved in a manner consistent with the formation of a multimeric structure, which may represent assembled core particles. Further, when examined by electron microscopy a heterogeneous mixture of nucleocapsid-like particles were visible. Core protein was specifically recognized by antibodies present in HCV infected serum, suggesting that …
Radiosurgery For Malignant Brain Tumors, Michael Jino Yun
Radiosurgery For Malignant Brain Tumors, Michael Jino Yun
Theses and Dissertations
Radiosurgery using the Linear Accelerator or the Gamma Knife has proven to be an effective treatment modality for malignant brain tumors. In comparison to other treatments, radiosurgery can be performed on an outpatient basis and is noninvasive (Table 5). Due to the functional properties of radiosurgical devices, they are ideal for patients who are unable to undergo surgical removal of their brain tumors. The sharp dose drop—off beyond the tumor margin allows for high dosage tumor irradiation while sparing normal brain tissue. Many procedures that involve radiosurgery use it as a ”boost” therapy in conjunction with surgical resection and whole …
Validation Of A Virginia Work Release Risk Prediction Model: A Methodology For The Improvement Of The Reliability Of Correctional Decision Makers, William Nathan Osborne Jr.
Validation Of A Virginia Work Release Risk Prediction Model: A Methodology For The Improvement Of The Reliability Of Correctional Decision Makers, William Nathan Osborne Jr.
Theses and Dissertations
This study identifies and validates variables which are significant predictors of work release success on 439 Virginia work release participants. The variables were selected on the basis of whether they would exert internal or external control over the inmate, with a view toward offering empirical support to control theory. A retrospective longitudinal research design was employed by randomly selecting inmates who had participated in either of three work release centers from 1987 to 1991. Two of the programs housed male inmates while the other housed female inmates. Data were collected from inmate files on thirty-one variables over a six month …
Cloning, Expression, Purification And Characterization Of Domain B Of Wheat Germ Agglutinin, Ann C. Rice
Cloning, Expression, Purification And Characterization Of Domain B Of Wheat Germ Agglutinin, Ann C. Rice
Theses and Dissertations
Wheat germ agglutinin (WGA) belongs to a family of dimeric chitin binding lectins specific for N-acetyl-D-glucosamine (GlcNAc) and N-acetyl-D-neuraminic acid (NeuNAc). The polypeptide chain consists of a tandem repeat of four conserved 4.3 kDa domains (A, B, C, D) stabilized by four disulfide bonds. Saccharide binding occurs in the dimer interface where domains of different subunits are in contact (A with D, B with C). An aromatic amino acid rich pocket on one domain (sufficient for saccharide binding) and a polar region on the contacting domain constitute a complete binding site. Saccharide binding affinities may differ among the four unique …
The Relationship Between Task Performance And Perceived Quality Of Life Of Families With Adopted Special-Needs Children, Bibhuti Kumar Sar
The Relationship Between Task Performance And Perceived Quality Of Life Of Families With Adopted Special-Needs Children, Bibhuti Kumar Sar
Theses and Dissertations
A correlational approach was utilized in this study to investigate the relationship between adoption related task performance and perceived quality of life of families with an adopted special-needs child. Additionally, a set of contextual variables suggested by the literature to influence family functioning with an adopted special-needs child were also studied. Purposive and availability sampling approaches were employed to identify the sample of special-needs adoptive families (N = 289) to whom a survey questionnaire was sent. Both mothers and fathers were asked to complete the Survey.
Eighty-six mothers and 53 fathers completed and returned the survey questionnaire ( N: 91 …
A Non-Homogeneous, Spatio-Temporal, Wavelet Multiresolution Analysis And Its Application To The Analysis Of Motion, Thomas J. Burns
A Non-Homogeneous, Spatio-Temporal, Wavelet Multiresolution Analysis And Its Application To The Analysis Of Motion, Thomas J. Burns
Theses and Dissertations
This research presents a multiresolution wavelet analysis tool for analyzing motion in time sequential imagery. A theoretical framework is developed for constructing an L2R wavelet multiresolution analysis from three non-identical spatial and temporal L2R wavelet multiresolution analyses. This framework provides the flexibility to tailor the spatio-temporal frequency characteristics of the three dimensional wavelet filter to match the frequency behavior of the analyzed signal. An unconventional, discrete multiresolution wavelet decomposition algorithm is developed which yields a rich set of independent spatio-temporally oriented frequency channels for analyzing, the size and speed characteristics of moving objects. Unlike conventional wavelet decomposition methods, this algorithm …
Genetic Algorithms Applied To A Mission Routing Problem, James B. Olsan
Genetic Algorithms Applied To A Mission Routing Problem, James B. Olsan
Theses and Dissertations
This thesis applies genetic algorithms to a mission routing problem. The mission routing problem involves determining an aircraft’s best route between a staging base and a target. The goal is to minimize the route distance and the exposure to radar. Potential routes are mapped to a 3-dimensional mesh where the nodes correspond to checkpoints in the route and the arcs correspond to partial paths of the route. Each arc is weighted with respect to distance and exposure to radar. A genetic algorithm is a probabilistic search technique loosely based on theories of biological evolution. Genetic crossover and survival of the …
Neural Networks For Dynamic Flight Control, Ronald E. Setzer
Neural Networks For Dynamic Flight Control, Ronald E. Setzer
Theses and Dissertations
This thesis examines the application of artificial neural networks (NNs) to the problem of dynamic flight control. The specific application is the control of a flying model helicopter. The control interface is provided through a hardware and software test bed called the Fast Adaptive Maneuvering Experiment (FAME). The NN design approach uses two NNs: one trained as an emulator of the plant and the other trained to control the emulator. The emulator neural network is designed to reproduce the flight dynamics of the experimental plant. The controller is then designed to produce the appropriate control inputs to drive the emulator …
Color Image Segmentation, Kimberley A. Mccrae
Color Image Segmentation, Kimberley A. Mccrae
Theses and Dissertations
The most difficult stage of automated target recognition ATR is segmentation. Current AFIT segmentation problems include faces and tactical targets previous efforts to segment these objects have used intensity and motion cues. This thesis develops a color preprocessing scheme to be used with the other segmentation techniques. A neural network is trained to identify the color of a desired object, eliminating all but that color from the scene. Gabor correlations and 2D wavelet transformations will be performed on stationary images and 3D wavelet transforms on multispectral data will incorporate color and motion detection into the machine visual system. The thesis …
Creation Of Prototype Aircrew Protection Equipment Based On Face Anthropometry, Martin E. Piccus, Gary A. Smith, Brian K. Standley, Tami L. Volk, Linda B. Wildes
Creation Of Prototype Aircrew Protection Equipment Based On Face Anthropometry, Martin E. Piccus, Gary A. Smith, Brian K. Standley, Tami L. Volk, Linda B. Wildes
Theses and Dissertations
The objective of this research is to develop a process which will analyze and group human faces, concentrating on the oxygen mask seal area, into a minimum number of generic yet distinct face types. The shape and size, or form, of the face is described by bending energies. This bending energy provides the features for the grouping of similar face types, while distinguishing representatives for each cluster. The face tariffs are the percentage of faces grouped under a representative face. The representative faces are then transformed Into three-dimensional solids using computer-aided design. A rapid prototype creates the solids or plugs …
Use Of Chlorine Dioxide To Remove Fish Pathogens From Garrison Diversion Water, Wayne C. Hustoft
Use Of Chlorine Dioxide To Remove Fish Pathogens From Garrison Diversion Water, Wayne C. Hustoft
Theses and Dissertations
This report considers the use of chlorine dioxide as an alternate disinfectant for the removal of biota from Garrison Diversion water. Laboratory testing has shown that chlorine may not be an acceptable disinfectant because it can produce carcinogens from side reactions with constituents found in natural surface waters.
This study used Lake Sakakawea water collected at the Snake Creek Pumping Station located on the eastern shore. Water samples were of direct filtration effluent from a laboratory scale filter column. samples were gathered at several different turbidity levels. The "DPD" method, as published in "Standard Methods for the Analysis of Water …
Design And Construction Of The Aerobot Robotic Manipulator (Arm), William L. Cochran
Design And Construction Of The Aerobot Robotic Manipulator (Arm), William L. Cochran
Theses and Dissertations
This thesis designed, constructed, and tested a robotic arm for the Aerobot Aerial Robot. The main purpose of the ARM is to enable the Aerobot to retrieve objects for use in an annual robotics competition. Design of the ARM involved synthesizing the characteristics of simplicity, weight, strength, and size. The result was a three-degree-of-freedom manipulator that uses electric motors, cable linkages, and telescoping tubes to access a work space below the Aerobot. Forward and inverse kinematics were investigated to enable automation of the ARM. Data was collected from infrared sensors to validate the model. Manipulation of the ARM is presently …