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2002

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Prognostic Model For Terminally Ill Cancer Patients On Laboratory Data, Kenji Hira, Noriaki Aoki, Akitoshi Hayashi, Janez Demsar, Blaz Zupan, Kim Dunn, William Jack Schull, Tsuguya Fukui Jan 2002

Prognostic Model For Terminally Ill Cancer Patients On Laboratory Data, Kenji Hira, Noriaki Aoki, Akitoshi Hayashi, Janez Demsar, Blaz Zupan, Kim Dunn, William Jack Schull, Tsuguya Fukui

Faculty, Staff and Student Publications

No abstract provided.

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Toward A Cognitive Taxonomy Of Medical Errors, Jiajie Zhang, Vimla L Patel, Todd R Johnson, Edward H Shortliffe Jan 2002

Toward A Cognitive Taxonomy Of Medical Errors, Jiajie Zhang, Vimla L Patel, Todd R Johnson, Edward H Shortliffe

Faculty, Staff and Student Publications

One critical step in addressing and resolving the problems associated with human errors is the development of a cognitive taxonomy of such errors. In the case of errors, such a taxonomy may be developed (1) to categorize all types of errors along cognitive dimensions, (2) to associate each type of error with a specific underlying cognitive mechanism, (3) to explain why, and even predict when and where, a specific error will occur, and (4) to generate intervention strategies for each type of error. Based on Reason's (1992) definition of human errors and Norman's (1986) cognitive theory of human action, we …

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Vicarious Traumatization And Its Impact On The Pennsylvania Child Welfare System, Jo Ann Jankoski Jan 2002

Vicarious Traumatization And Its Impact On The Pennsylvania Child Welfare System, Jo Ann Jankoski

Electronic Theses and Dissertations

Although many studies have addressed burnout, secondary trauma, and job satisfaction among child welfare workers throughout the United States, a review of the current and available literature revealed limited research addressing the impact of vicarious trauma and its relationship to worker retention, recruitment, and job satisfaction. This study was conducted within the context of traumatology theory and examined how vicarious trauma affects child welfare workers and to what degree vicarious trauma has had an impact on their collective community, the child welfare system. The research question that guided this study was: How does vicarious trauma affect child welfare workers and …

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A Study To Compare The Effectiveness Of Teletechnet Distance Education With Traditional Classroom Education Among Old Dominion University Industrial Technology Graduates 1998-2000, Robert J. Cartwright Jan 2002

A Study To Compare The Effectiveness Of Teletechnet Distance Education With Traditional Classroom Education Among Old Dominion University Industrial Technology Graduates 1998-2000, Robert J. Cartwright

OTS Master's Level Projects & Papers

The following hypothesis guided this research: 1. Among Old Dominion University Industrial Technology majors, there was no significant difference in academic achievement between those students who had been taught by conventional means and those that had used Teletechnet distance education.

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Project Update-Technology Education-And The Impacts On Virginia Standards Of Learning Achievement, Doyle L. James Jan 2002

Project Update-Technology Education-And The Impacts On Virginia Standards Of Learning Achievement, Doyle L. James

OTS Master's Level Projects & Papers

The problem of this study was to compare the Virginia SOL scores of a group of fourth grade students at Cooper Elementary School who had project UPDATE education in design and technology compared to fourth grade students who did not receive the education.

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Long Term Goals And Program Choices Of New Students Entering Yavapai College - Verde Valley Campus, Alexandra Helm-Correa Jan 2002

Long Term Goals And Program Choices Of New Students Entering Yavapai College - Verde Valley Campus, Alexandra Helm-Correa

OTS Master's Level Projects & Papers

The goals of this study were to answer the following questions: 1. What were the reasons new students entered Yavapai College-Verde Valley Campus in Spring 2002? 2. What were the primary reasons new students took courses in Spring 2002 and what were their long-term goals? 3. What were the academic degree, vocational degree or vocational certification program choices for new students entering Yavapai College? 4. What was the composition of new students entering Yavapai College in terms of whether they were primarily traditional or non-traditional students? 5. What relationship existed between traditional and non-traditional students at Yavapai College and their …

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Tactics Used By Community Resource Police Officers In Reducing Drug Dealing In Norfolk, Virginia Multi-Family Housing Developments, Gilda B. Klein Jan 2002

Tactics Used By Community Resource Police Officers In Reducing Drug Dealing In Norfolk, Virginia Multi-Family Housing Developments, Gilda B. Klein

OTS Master's Level Projects & Papers

To guide the solution to this problem, the following goals have been established: 1. Identify procedures used by community resource police officers to reduce drug dealing; 2. Identify the effectiveness of the procedures used; 3. Recommend changes to support the successful tactics in the reduction of drug dealing in Norfolk multi-family public housing developments.

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Tightness Of Slip-Linked Polymer Chains, Ralf Metzler, Andreas Hanke, Paul G. Dommersnes, Yacov Kantor, Mehran Kardar Jan 2002

Tightness Of Slip-Linked Polymer Chains, Ralf Metzler, Andreas Hanke, Paul G. Dommersnes, Yacov Kantor, Mehran Kardar

Physics & Astronomy Faculty Publications

We study the interplay between entropy and topological constraints for a polymer chain in which sliding rings (slip links) enforce pair contacts between monomers. These slip links divide a closed ring polymer into a number of subloops which can exchange length among each other. In the ideal chain limit, we find the joint probability density function for the sizes of segments within such a slip-linked polymer chain (paraknot). A particular segment is tight (small in size) or loose (of the order of the overall size of the paraknot) depending on both the number of slip links it incorporates and its …

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Group-Fitted Ab Initio Single- And Multiple-Scattering Exafs Debye-Waller Factors, Nicholas Dimakis, Grant Bunker Jan 2002

Group-Fitted Ab Initio Single- And Multiple-Scattering Exafs Debye-Waller Factors, Nicholas Dimakis, Grant Bunker

Physics & Astronomy Faculty Publications

X-ray absorption fine structure (XAFS) spectroscopy is one of the few direct probes of the structure of metalloprotein binding that is equally applicable to proteins in crystals, solutions, and membranes. Despite considerable progress in the calculation of the photoelectron scattering aspects of XAFS, calculation of the vibrational aspects has lagged because of the difficulty of the calculations. We report here initial results that express single- and multiple-scattering Debye-Waller factors as polynomial functions of first shell radial distance for metal-peptide complexes, enabling quantitatively accurate full multiple-scattering XAFS data analysis of active sites of unknown structure at arbitrary temperatures without the use …

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Baseline Limnology And Nutrient Study Of Basin Head Lagoon, Prince Edward Island, With Management Implications, Karen Connolly Jan 2002

Baseline Limnology And Nutrient Study Of Basin Head Lagoon, Prince Edward Island, With Management Implications, Karen Connolly

Theses and Dissertations (Comprehensive)

Knowledge of physical and chemical process ongoing within an environment is an important step towards proper environmental management. Basin Head, Prince Edward Island is in the process of becoming a Marine Protected Area (MPA) and therefore a comprehensive management plan will need to be completed. The area contains a unique strain of Irish Moss (Chrondrus crispus Stackhouse) that is an important marine plant used in various industries. A study was conducted during the summer of 2000 to assess the basic physical and chemical conditions within the Basin Head Lagoon and surrounding stream inputs. The purpose of the study was to …

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Structural And Sedimentary Characteristics Of The Tsergo Ri Rockslide Breccia, Langtang, Nepal, Himalaya, Mark B. Carpenter Jan 2002

Structural And Sedimentary Characteristics Of The Tsergo Ri Rockslide Breccia, Langtang, Nepal, Himalaya, Mark B. Carpenter

Theses and Dissertations (Comprehensive)

The high magnitude Tsergo Ri landslide (c. 100ka), Langtang Himal, with a volume in excess of 15km^3 and a vertical displacement of more than 1500m remains the largest crystalline rockslide in Nepal Himalaya. The Quaternary landslide affected rocks in gneissic fancies of the High Himalayan Crystalline Sequence adjacent to the Tibetan Sedimentary Series. Depositional characteristics from exhumed transport slope sites were analysed at both the macroscopic and the microscopic scale to investigate (i) localised fracture in terms of orientation and density, and (ii) petrography of slide induced host rock deformation. Fracture orientation analysis indicate the spatial orientation of preexisting discontinuities …

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Risk, Vulnerability And Environmental Hazards In The Village Of Darkot, Northern Pakistan, Nicholas Andrew Cradock-Henry Jan 2002

Risk, Vulnerability And Environmental Hazards In The Village Of Darkot, Northern Pakistan, Nicholas Andrew Cradock-Henry

Theses and Dissertations (Comprehensive)

Conventional approaches to studying environmental risks and hazards have focused on the physical parameters of geomorphic, hydrologic and climatic events—magnitude, duration and frequency—without adequately accounting for the role of human agency in averting disaster and distributing loss. Secondly, where human intervention was recognized it was often in an incriminating way, particularly in work dealing with the developing world or peripheral regions such as mountain areas. Here, humans were portrayed as helpless victims; unable to successfully adapt to their environment or else they were viewed as having played an unwitting role in their own downfall through ‘short-sighted’ agricultural practices such as …

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River Basin Ecosystem Restoration: A Comparison Of Conservation Authority Efforts (Ontario), Wilfred Gregory Tschirhart Jan 2002

River Basin Ecosystem Restoration: A Comparison Of Conservation Authority Efforts (Ontario), Wilfred Gregory Tschirhart

Theses and Dissertations (Comprehensive)

This thesis reviews a series of river basin ecosystem restoration/enhancement projects carried out under the direction of three individual southern Ontario conservation authorities in their respective river basins. The three authorities are the Grand River Conservation Authority, the Maitland Valley Conservation Authority, and the Upper Thames River Conservation Authority. A review from the published literature dealing with river basins, ecosystems, and environmental management supports the analysis of restoration projects. The criterion by which the literature articles were selected was that they have relevance to the type of environmental issues that are common to the river basins in the study areas. …

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Radiation Budget, Ground Thermal Regime And Hydrological Balance Of A Low Arctic Tundra Basin, Coppermine River, Northwest Territories, David S. Turcotte Jan 2002

Radiation Budget, Ground Thermal Regime And Hydrological Balance Of A Low Arctic Tundra Basin, Coppermine River, Northwest Territories, David S. Turcotte

Theses and Dissertations (Comprehensive)

The effects of slope, aspect and vegetation cover on the radiation balance and active layer thermal regime of arctic tundra were investigated during the summer of 1999 and the spring of 2000. The study site is located at Daring Lake, N.W.T (64°52'N, 111°35'W) in the Slave Geological Province of the Coppermine River Basin. A sub-basin 14 ha in area and with approximately 30 meters of relief was intensely monitored for hydrological radiation and energy balance components. Initiation of active layer development and subsequent thawing was earlier and more pronounced on predominantly west facing slopes due to increased receipt of incoming …

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Dune Morphology Response To Water Level Change, Pinery Provincial Park, Ontario, Canada, Michael C.A. Bitton Jan 2002

Dune Morphology Response To Water Level Change, Pinery Provincial Park, Ontario, Canada, Michael C.A. Bitton

Theses and Dissertations (Comprehensive)

This thesis describes the geomorphological changes to a trough blowout in Pinery Provincial Park's sand dunes. The Park is located on Lake Huron’s southeastern shore where, due to rapid changes in Lake Huron water levels, a study could be completed examining the changes to blowout morphology based on the change in beach sediment supply. The study took place during relative low Lake Huron levels (1999-2000) and was compared to data collected during a period of relative high Lake Huron levels (1994-1995). Field research included erosion pin measurement to monitor and verify morphological change through the throat of the blowout, aeolian …

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Ecosystem Health And Sustainable Livelihoods: Exploring The Prospects In Community-Based Resource Management In The East Mamprusi District, Ghana, Wuni P. Dasori Jan 2002

Ecosystem Health And Sustainable Livelihoods: Exploring The Prospects In Community-Based Resource Management In The East Mamprusi District, Ghana, Wuni P. Dasori

Theses and Dissertations (Comprehensive)

Institutional processes, social and economic trends play a role in defining the outcomes of people’s interaction with and use of their ecosystems. The resource use decisions of households influence the livelihood and health dimensions of ecological change. This thesis identifies community assets and activities, and examines how they both affect human and ecological health, productivity and community sustainability. It studies the relationship between changing biophysical conditions and community well-being in terms of health and livelihood by examining how agro-ecosystem based resource use systems influence community environmental change and vulnerability to health and livelihood problems inherent in their ecosystem. Three communities …

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Seiche Events At The Slave River Delta And Great Slave Lake, Northwest Territories: An Assessment Of Process And Impact, James Tobias Gardner Jan 2002

Seiche Events At The Slave River Delta And Great Slave Lake, Northwest Territories: An Assessment Of Process And Impact, James Tobias Gardner

Theses and Dissertations (Comprehensive)

Seiche events are important hydrodynamic processes that impact the Slave River Delta, during the late summer and autumn. Given the scarcity of previous research on seiche events at river deltas and the physical dimensions and orientation of the Slave River Delta, this location at the southern shore of Great Slave Lake is ideal to study the occurrence and impacts of seiche events at a river delta. Seasonal changes to long-term water level trends and water level variability on Great Slave Lake, correspond to changes to the Slave River flow potentially associated with the impacts of regulation of the Peace River. …

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Investigating Spatio-Temporal Variability Of Hydrological Components In The Canadian Rockies (Alberta), Christopher Dennis Hopkinson Jan 2002

Investigating Spatio-Temporal Variability Of Hydrological Components In The Canadian Rockies (Alberta), Christopher Dennis Hopkinson

Theses and Dissertations (Comprehensive)

This thesis addresses two questions related to the broad topic of mountain hydrology: 1) How do interannual hydrological balancee and pathway components vary in complex temperate high mountain environments at various spatio-temporal scales? 2) a) Is it possible, using dedicated hydrological models, for significant errors in simulated runoff components despite good hydrograph recreations (i.e. right results for wrong reasons)? b) If so, what kinds of errors are encountered? The first question was addressed by undertaking a hydrological tracer and hydrometric study at three basin scales (Banff —2200 km2, Lake Louise —400 km2 and the headwaters —30 km2) within the Bow …

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Investigating Interactions Between Search Mechanisms In The Control Of Visual Attention, Brian J. White Jan 2002

Investigating Interactions Between Search Mechanisms In The Control Of Visual Attention, Brian J. White

Theses and Dissertations (Comprehensive)

Olds, Cowan and Jolicoeur (2000) showed that although the mechanisms underlying visual search have traditionally been assumed to be independent. in fact they interact. Using coloured disk stimuli, they interrupted pop-out search (target plus Dl distractors) by adding more distractors (D2s) of a different colour to the display before pop-out processes were able to find the target. In short, partially completed pop-out processes facilitated subsequent difficult search processes (“search assistance"). The present study investigated hypotheses for this interaction. In Experiments 1 and 2, we used methods aimed at determining where the bulk of attentional resources are allocated during search of …

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On The Modeling Of A Gapped Power-Bus Structure Using A Hybrid Fem/Mom Approach, Yun Ji, Todd H. Hubing Jan 2002

On The Modeling Of A Gapped Power-Bus Structure Using A Hybrid Fem/Mom Approach, Yun Ji, Todd H. Hubing

Electrical and Computer Engineering Faculty Research & Creative Works

A hybrid finite-element-method/method-of-moments (FEM/MoM) approach is applied to the analysis of a gapped power-bus structure on a printed circuit board. FEM is used to model the details of the structure. MoM is used to provide a radiation boundary condition to terminate the FEM mesh. Numerical results exhibit significant errors when the FEM/MoM boundary is chosen to coincide with the physical boundary of the board. These errors are due to the inability of hybrid elements on the boundary to enforce the correct boundary condition at a gap edge in a strong sense. A much better alternative is to extend the MoM …

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Restoration Of The Lorentzian And Debye Curves Of Dielectrics And Magnetics For Fdtd Modeling, Marina Koledintseva, Konstantin Rozanov, James L. Drewniak, Gabriele Di Fazio Jan 2002

Restoration Of The Lorentzian And Debye Curves Of Dielectrics And Magnetics For Fdtd Modeling, Marina Koledintseva, Konstantin Rozanov, James L. Drewniak, Gabriele Di Fazio

Electrical and Computer Engineering Faculty Research & Creative Works

The algorithms of extracting the Lorentzianand Debye-curve parameters of dielectric and magnetic materials from the results of measurements at several frequency points are presented. These algorithms are based on an analytical solution of systems of non-linear equations with physical constraints that follow from the fundamental principle of causality. The extracted parameters are useful for FDTD modeling of electromagnetic structures containing such dispersive media. Some examples are presented.

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Please Forgive Me: Transgressors’ Emotions And Physiology During Imagery Of Seeking Forgiveness And Victim Responses, Charlotte Vanoyen-Witvliet, Thomas Ludwig, David J. Bauer Jan 2002

Please Forgive Me: Transgressors’ Emotions And Physiology During Imagery Of Seeking Forgiveness And Victim Responses, Charlotte Vanoyen-Witvliet, Thomas Ludwig, David J. Bauer

Faculty Publications

We assessed transgressors’ subjective emotions and physiological responses in a within-subjects imagery study involving 20 male and 20 female participants. Two imagery conditions focused on the transgressor’s actions: participants 1) ruminated about a real-life transgression and 2) imagined seeking forgiveness from the victim. Three imagery conditions focused on the victim’s possible responses: participants imagined their victims responding with 1) a grudge, 2) genuine forgiveness, and 3) reconciliation. Compared to ruminations about one’s transgression or an unforgiving response from the victim, imagery of forgiveness-seeking and merciful responses from victims (forgiveness and reconciliation) prompted improvements in basic emotions (e.g., sadness, anger) and …

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Communication And Social Skills In The Context Of Close Relationships Of Socially Anxious And Nonanxious Individuals, Jennie Graff-Dolezal Jan 2002

Communication And Social Skills In The Context Of Close Relationships Of Socially Anxious And Nonanxious Individuals, Jennie Graff-Dolezal

Undergraduate Theses and Senior Projects

No abstract provided.

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Effects Of Drainage Ditches On Peak Flow In The Buffalo River Watershed, Minnesota, Chris D. Laveau Jan 2002

Effects Of Drainage Ditches On Peak Flow In The Buffalo River Watershed, Minnesota, Chris D. Laveau

Undergraduate Theses and Senior Projects

No abstract provided.

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I Can Be Materialistic And Follow Christ ... True Or False?, Taryn Abbott Mcdowall Jan 2002

I Can Be Materialistic And Follow Christ ... True Or False?, Taryn Abbott Mcdowall

Undergraduate Theses and Senior Projects

No abstract provided.

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A Baiting System For Delivery Of An Oral Plague Vaccine To Black-Tailed Prairie Dogs, Terry E. Creekmore, Tonie E. Rocke, Jerry Hurley Jan 2002

A Baiting System For Delivery Of An Oral Plague Vaccine To Black-Tailed Prairie Dogs, Terry E. Creekmore, Tonie E. Rocke, Jerry Hurley

United States Department of Agriculture Wildlife Services: Staff Publications

Laboratory and field studies were conducted between July and October 1999 to identify bait preference, biomarker efficacy, and bait acceptance rates for delivering an oral plague vaccine to black-tailed prairie dogs (Cynomys ludovicianus). Twenty juvenile captive prairie dogs were offered alfalfa baits containing either alfalfa, alfalfa and 5% molasses, or alfalfa, 5% molasses and 4% salt. Based on the results of these trials we selected a bait containing alfalfa, 7% molasses, and 1% salt for field trials to determine bait acceptance rates by free-ranging animals. The biomarkers DuPont Blue dye, iophenoxic acid, and tetracycline hydrochloride were orally administered …

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Review Of Determination Of Organic Compounds In Soils, Sediments And Sludges By T. R. Crompton, John J. Johnston Jan 2002

Review Of Determination Of Organic Compounds In Soils, Sediments And Sludges By T. R. Crompton, John J. Johnston

United States Department of Agriculture Wildlife Services: Staff Publications

T. R. Crompton has accomplished the Herculean task of summarizing the literature (up to 1998) for the determination of organic and organometallic substances in soils, aquatic, and marine sediments and sludge. Although previous books address the analysis of such compounds in water, this is the first book dedicated to the analysis of pollutants in soils, sediments, and sludges, matrices that typically contain a variety of interfering compounds and offer significant analytical challenges. Overall, the book is relatively easy to read; the “camera ready” manuscript produced by the author contains clear tables, figures, and font. Classes of compounds addressed in this …

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Adaptive Critic Based Optimal Neurocontrol For Synchronous Generator In Power System Using Mlp/Rbf Neural Networks, Jung-Wook Park, Ganesh K. Venayagamoorthy, Ronald G. Harley Jan 2002

Adaptive Critic Based Optimal Neurocontrol For Synchronous Generator In Power System Using Mlp/Rbf Neural Networks, Jung-Wook Park, Ganesh K. Venayagamoorthy, Ronald G. Harley

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents a novel optimal neurocontroller that replaces the conventional controller (CONVC),which consists of the automatic voltage regulator (AVR) and turbine governor, to control a synchronous generator in a power system using a multilayer perceptron neural network (MLPN) and a radial basis function neural network (RBFN). The heuristic dynamic programming (HDP) based on the adaptive critic design (ACD) technique is used for the design of the neurocontroller. The performance of the MLPN based HDP neurocontroller (MHDPC) is compared with the RBFN based HDP neurocontroller (RHDPC) for small as well as large disturbances to a power system, and they are …

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Full Binary Combination Schema For Floating Voltage Source Multilevel Inverters, Xiaomin Kou, Keith Corzine, Yakov L. Familiant Jan 2002

Full Binary Combination Schema For Floating Voltage Source Multilevel Inverters, Xiaomin Kou, Keith Corzine, Yakov L. Familiant

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents schema of operation for floating voltage source multilevel inverters. The primary advantage of the proposed schema is that the number of voltage levels (and thus power quality) can be increased for a given number of semiconductor devices when compared to the conventional "flying capacitor" topology. However, the new schema requires fixed floating sources instead of capacitors and therefore is more suitable for battery power applications such as electric vehicles, flexible AC transmission systems and submarine propulsion. Alternatively transformer/rectifier circuits may be used to supply the floating sources in a similar way to cascaded H-bridge inverters. Computer simulation …

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Comparing Communication Technology On Chinese, English, And Spanish Diabetes Web Sites, Yanko F Michea, Karen Pancheri, Yang Gong, Elmer Bernstam Jan 2002

Comparing Communication Technology On Chinese, English, And Spanish Diabetes Web Sites, Yanko F Michea, Karen Pancheri, Yang Gong, Elmer Bernstam

Faculty, Staff and Student Publications

Technological and cultural factors influence access to health information on the web in multifarious ways. We evaluated structural differences and availability of communication services on the web in three diverse language and cultural groups: Chinese, English, and Spanish. A total of 382 web sites were analyzed: 144 were English language sites (38%), 129 were Chinese language sites (34%), and 108 were Spanish language sites (28%). We did not find technical differences in the number of outgoing links per domain or the total availability of communication services between the three groups. There were differences in the distribution of available services between …

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