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Bridgewater Review, Vol. 17, No. 2, December 1998

Bridgewater Review

No abstract provided.

Uncertainty In Recharge From Subsidence Craters At Frenchman Flat, Nevada Test Site: Impacts Of Initial And Boundary Conditions And Media Properties, David Matthew Ely

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Nevada Test Site has over 400 subsidence craters formed by the collapse of overlying rock following underground nuclear tests. Under natural conditions, infiltration and recharge would not be considered likely due to infrequent precipitation events and extreme evapotranspiration. Crater U5a in Frenchman Flat was chosen for study because it intercepts significantly more drainage than surrounding craters. Vadose zone modeling was conducted to test the sensitivity of water movement to boundary and initial conditions. The effects of ponding depth was negligible but depth of wetting front movement was highly dependent on the lateral extent of the ponds. The model was …

Differences Between Regular And Random Order Of Updates In Damage-Spreading Simulations, Thomas Vojta, Michael Schreiber

Physics Faculty Research & Creative Works

We investigate the spreading of damage in the three-dimensional Ising model by means of large-scale Monte Carlo simulations. Within the Glauber dynamics we use different rules for the order in which the sites are updated. We find that the stationary damage values and the spreading temperature are different for different update order. In particular, random update order leads to larger damage and a lower spreading temperature than regular order. Consequently, damage spreading in the Ising model is nonuniversal not only with respect to different update algorithms (e.g., Glauber vs heat-bath dynamics) as already known, but even with respect to the …

Feature Saliency In Artificial Neural Networks With Application To Modeling Workload, Kelly A. Greene

Theses and Dissertations

This dissertation research extends the current knowledge of feature saliency in artificial neural networks (ANN). Feature saliency measures allow for the user to rank order the features based upon the saliency, or relative importance, of the features. Selecting a parsimonious set of salient input features is crucial to the success of any ANN model. In this research, several methodologies were developed using the Signal to Noise Ratio (SNR) Feature Screening Method and its associated SNR Saliency Measure for selecting a parsimonious set of salient features to classify pilot workload in addition to air traffic controller workload. Candidate features were derived …

Three-Dimensional Calculation Of Contaminant Transport In Groundwater At A Dover Afb Site, Tariq O. Hashim

Theses and Dissertations

Macroscale rate-limited sorption modeling was tested using a production transport code, the GMS/FEMWATER ground-water modeling package. The code (Version 1.1 of FEMWATER. dated 1 August 1995) was applied to a 3D conceptual model developed from a field site at Dover AFB, DE. A simulation was performed of a 200 hour contaminant injection pulse followed by clean water flushing. A moment analysis performed on the resulting breakthrough curve validated code self-consistency. Another injection pulse simulation showed that retardation temporally delays the breakthrough peak. Transport simulations of pulsed clean water pumping of the test cell with a prescribed initial contaminant distribution demonstrated …

An Examination Of Self-Efficacy In Master’S Level Counselor Trainees, Matthew G. Rushlau

Dissertations

This research is an investigation into changes in individuals’ belief of self-efficacy as they advanced through master’s-level counselor training. Differences were examined between reported levels of beliefs of self-efficacy for a group of 30 master’s students involved in counselor practicum training and 31 master’s students involved in basic counseling coursework. Participants completed the Counselor Self-Estimate Inventory (COSE) (Larson et al., 1992) at the beginning and end of an academic semester. Data generated by the COSE included an overall score on beliefs of counselor self-efficacy along with five subscale scores of various aspects of counseling, consisting of Micro-Skills, Process, Difficult Client …

A Matter Of Expectations: Interpreting The Statutory Preemption Of Local Assistance To Federal Firearms Regulators, Thomas E. Castleton

Alaska Law Review

No abstract provided.

Operational Report 1998, University Of Montana--Missoula

University of Montana Annual Financial Reports, 1918-2012

University of Montana annual financial report for fiscal year ending June 30, 1998.

Main Hall To Main Street, December 1998, University Of Montana--Missoula. Office Of University Relations

Main Hall to Main Street, 2005-2010

This is volume 4, number 8 of Main Hall to Main Street.

An Analysis Of Private And Social Discount Rates In Costa Rica, December 1998, Bruce Aylward, Ina T. Porras

Monteverde Institute: Economy and Resource Management

In the economic analysis of long-term projects or changes in policy and land use with long term impacts, the cost and benefit flows typically occur in different periods. The process of discounting these flows enables them to be added together and compared with the net present value of alternative courses of action. Discounting is therefore central to intertemporal economic analysis. In the case of the analysis of environmental issues, discounting assumes particular importance, given that economic benefits produced by ecosystems (or damages incurred by their degradation) either (1) occur only in the future (2) increase into the future or (3) …

Edison Communicator Volume Four; Number Four, Edison Community College

Edison Communicator

Edison Communicator: A Publication for the Faculty, Staff and Friends of Edison Community College.

What Constitues A Gifted And Talented Student, Stephanie A. Budish

Theses and Dissertations

No abstract provided.

De-Emphasizing Grade-Level Identities: A Case Study Of Mathematics Instruction In An Intermediate Elementary Multiage Classroom, Kevin Oconnor

Dissertations

This is an interpretive study that investigates the nature of the issues, dilemmas, and successes of planning and implementing a mathematics program with minimal reference to grade-level designations in a multiage classroom setting of fourth—and fifth-grade students.

The study focused on how one teacher conceptualized, designed, and structured a mathematics curriculum. An analysis of over 60 hours of interviews conducted over six months revealed a teacher who integrated her knowledge of elementary mathematics with her knowledge and practice of teaching and learning theories, mathematical understanding, curriculum perspectives, and classroom management. This integration is explained through a conceptual framework of the …

Faculty Senate Meeting Minutes, 12/01/1998, P 394-452, Unm Faculty Senate

Faculty Senate Meeting Minutes, 1920 - 2013

No abstract provided.

Against Free-Form Formalism, David M. Golove

Articles

Article II, Section 2 of the Constitution provides that the President shall have the power to make treaties by and with the consent of two-thirds of tie Senate. Yet, most of the international agreements into which the United States has entered over the last fifty years, including NAFTA and the WTO Agreement, have been concluded as congressional-executive agreements-a procedure by which the President submits an agreement to both houses of Congress for simple majority approvaL In an article in the Harvard Law Review entitled "Is NAFTA Constitutional?," Professors Bruce Ackerman and David Golove attempted to provide this practice with constitutionalfoundations. …

Studies On The Occurrence Of Fluoride In Some Food Samples, Taghreed Ali Abdullah Al-Habshi

Theses

In recent years, the amount of fluoride in biological samples, drinking water and in fluoride containing food or feedstuffs has generated considerable interest. Hence the determination of fluoride is becoming increasingly important due to its implications for environmental health. Fluoride is considered to be amongst the most phytotoxic of the more common pollutants. In response to that extensive research has been made to improve the determination of trace amounts of fluoride through developing different analytical methods. The application of these various analytical methods for fluoride ion determination in water and food samples has gained an enormous interest.

Chapter I of …

Experimental And Modeling Studies On A Catalytic Packed Bed Membrane Reactor, Ashutosh G. Deshpande

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the present work, the effects of operating conditions in a catalytic packed bed membrane reactor were investigated with the reactant gases H 2 and CO flowing through the membrane tube, and an inert gas N 2 flowing on the outside. The reaction under study was methanol synthesis with BASF catalyst, and a gamma-alumina membrane with a nominal pore size of 40 A was used.;Preliminary experiments were carried out in the membrane reactor without any catalyst inside membrane to characterize it in terms of its flux, permeance, and selectivity of H2 over CO. Experiments were carried out in the packed …

Rheological Properties Of Candle Filter Deposits At Elevated Temperatures And Pressures, Brian Robert Jordan

Graduate Theses, Dissertations, and Problem Reports (ETD)

In order to improve the performance of hot gas ceramic candle filters, the theological properties of two types of filter deposits were studied. Black powder from the IGCC (Integrated Gasification Combined Cycle) provided consistent data when sampled from two different sources. This powder's mechanical properties were independent of elevated temperature conditions, suggesting that the particle adhesion process is controlled by the theological properties of the powder. Per US DOE request an apparatus was built to more accurately simulate candle filtration, and it was used to show that the process was unaffected by elevated inlet pressure conditions. The system was modeled …

Identification Of Math Anxiety Subtypes, Aline Elizabeth Rabalais

Graduate Theses, Dissertations, and Problem Reports (ETD)

Conceptualizations of mathematics anxiety, as well as factors that are empirically related to it, were identified from the existing literature. These factors are test, evaluation, trait, and state anxiety, as well as gender and level of math ability. Differences in these factors were hypothesized to distinguish subtypes of highly math anxious individuals from one another. In order to determine whether subtypes exist, cluster analyses were performed on a sample of 96 highly math anxious college students. The results revealed three clusters distinguished by completion time on two versions of a math test and age. Furthermore, participants' responses on a variety …

Computational Models Of Particle Size Effects On Brittle Oxide Scale Erosion, Ravi S. Tangirala

Graduate Theses, Dissertations, and Problem Reports (ETD)

Metals and alloys designed for machines at elevated temperatures have microstructures and chemistries optimized to provide strength and resistance to oxidation. The majority of the commercial high temperatures metal or alloys intended to use at temperatures below 850°C or so rely on the formation of a continuous surface layer of essentially oxide scale for further oxidation resistance. Erosion of these machine parts by the small solid particle entrained in the liquid or gaseous working environment is a serious problem in many industrial applications. Numerous experiments have been conducted to obtain empirical relations for predicting material loss during erosion and to …

Production Of Bound Μ⁺Μˉ Systems In Relativistic Heavy Ion Collisions, Ilya F. Ginzburg, Ulrich D. Jentschura, Savely Karshenboim, Frank Krauss, Valery G. Serbo, Gerhard Soff

Physics Faculty Research & Creative Works

Dimuonium (the bound system of two muons, the μ⁺ μ^--atom system) has not been observed yet. In this paper we discuss the electromagnetic production of dimuonium at RHIC and LHC in relativistic heavy ion collisions. The production of parastates is analyzed in the equivalent photon approximation. For the treatment of orthostates, we develop a three-photon formalism. We determine the production rates at RHIC and LHC with an accuracy of a few percent and discuss problems related to the observation of dimuonium.

Cognitive Development Beyond Childhood, David Moshman

Department of Educational Psychology: Faculty Publications

Concluding this volume on children’s cognition, this chapter addresses developmental changes in cognition that extend beyond childhood. I will not trace cognitive change across the entire span of adulthood (for lifespan accounts, see Cerella, Rybash, Hoyer, & Commons, 1993; Commons, Richards, & Armon, 1984; Craik & Salthouse, 1993; Holliday & Chandler, 1986; Hoyer & Rybash, 1994; Kausler, 1994; Lachman & Burack, 1993; Miller & Cook-Greuter, 1994; Rybash, Hoyer, & Roodin, 1986; Sinnott & Cavanaugh, 1991). Rather, I highlight changes associated with the second (and to a lesser extent the third) decade of life. The research reviewed suggests that developmental changes …

Thomas Jefferson And The United States Constitution: A Comparative Study Of Jefferson As Maturing Political Thinker To Jefferson The Political Operative, Thomas A. Parker

Masters Theses

The purpose of this thesis is to use historical, qualitative, and comparative methods of research in studying the life of Thomas Jefferson, his views on governance, and his impact on the highest law of our land, the United States Constitution. Thomas Jefferson's constitutional thoughts and theories evolved first as a maturing political thinker and later as a political operative on the state, national and international stage. His beliefs were shaped by many factors including Jefferson's own principles and character, his scholarship via learned men and life experiences, American and overseas events in and out of his control, titles and offices …

Fitness Landscape Analysis Of Discrete Constrained Optimization Problems, Sai Prasanna Ravichandran

Masters Theses

The exponentially large size of the solution space of typical optimization problems precludes the use of any deterministic approach to search for an optimal solution. A more efficient and efficacious approach is to use heuristic algorithms based on rules of thumb to guide the search process in the solution space. Associated with every solution in the space is a real number called fitness that signifies the quality of a solution. This space and the fitness values together form the fitness landscapes. Knowledge about the topology of these fitness landscapes is vital for any heuristic search operator to expedite the search …

Spatial And Temporal Variations Of Cloud-To-Ground Lightning In Southern Michigan, Michael A. Crimmins

Masters Theses

Lightning has a profound impact on many aspects of modern day society. Understanding its temporal and spatial distributions is fundamental in learning to coexist with its destructive power. This study surveyed the spatial and temporal distribution of cloud-to-ground lightning over southern Michigan using data provided by the Detroit Edison Company. Flash density and 'lightning day' maps were produced for every year of the 1985 to 1995 study period and then averaged to determine long term trends. A temporal analysis determined the distribution of lightning from the inter-annual down to the diurnal scale.

The spatial analysis indicates both deficiencies in the …

Synthesis, Characterization And Photophysical Behavior Of A Cr(Iii) Bimetallic System, Yan Chen

Masters Theses

Many binuclear transition metal complexes have been studied to understand the nature of interactions between the metal centers. People have found Simultaneous Pair Excitation phenomenon in some bimetallic system that can serve as a potential source of Non-Linear Optical behavior.

Thus a series of Cr₂ -([14]aneN₄)₂-X₄ⁿ⁺ complexes were synthesized and characterized. Only the cis,cis configuration was found. The results were compared with those of their monomer analogs. The electronic structures are very similar in both monomer and dimer complexes. The quantum yield, UV-Vis absorption and lifetime studies suggested a possible coupling between the …

Separation And Determination Of Monochlorophenols By Capillary Zones Electrophoresis, Zarina Yasmin Banu

Masters Theses

Chlorine has been widely used in industry. One of the most common uses of chlorine is in municipal water treatment plants. Chlorine reacts with a variety of organic compounds, among these are phenol and its derivatives which are commonly found in natural waters. When these compounds react with chlorine, a variety of chlorine substituted and oxidized products result depending on concentrations, pH, and temperature. In order to study these reactions it is necessary to separate and determine the various products produced.

Earlier studies have shown 3-chloro and 4-chlorophenol cannot be separated by commercial GLC columns. GC/MS (electron impact) measurements cannot …

Nickel Subsulfide Can Protect Human Fibroblasts From The Mutagenic Effect Of Benzo[A]Pyrene Diolepoxide, Samir M. Hamdan

Masters Theses

Cancer researchers are interested in identifying the environmental causes and synergistic influences of different carcinogens. It is important to examine the combined effect of multiple carcinogens since this is a more realistic representation of the true environmental situation in which we are exposed daily. Our study has reported that pretreating human fibroblasts with nickel subsulfide followed by the simultaneous treatment with both nickel subsulfide and benzo[a]pyrene diolepoxide (BPDE) can protect human fibroblasts from the mutagenic effects of BPDE. These results correlate well with our previous chromium-BPDE co-treatment work, suggesting a transition metal dependent protective effect. This protective effect was dependent …

Application Of The Paleomagnetic Fold Test To Determine The Relative Timing Of Sill Intrusion And Deformation In The Southwest Helena Salient, Montana, Stephen Christopher Whisner

Masters Theses

The Doherty Mountain fold complex is a highly folded and faulted region along the southern boundary of the Helena Salient in southwestern Montana. This region has a complex deformation history that is a key to deformation within the Helena Salient as a whole. A structural interpretation of the deformed rocks of this area was conducted using field mapping and cross section construction at 1:24,000 scale providing insight to the internal deformation processes involved. Fourteen folds and three major faults were mapped and analyzed showing the influence of the Southwest Montana Transverse Zone and late stage detachment faulting on fold orientation. …

Measurement Of Triple Gauge Wwγ Couplings At Lep2 Using Photonic Events, R. Barate, Manoj Thulasidas

Research Collection School Of Computing and Information Systems

A study of events with photons and missing energy has been performed with the data sample obtained with the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, corresponding to a total integrated luminosity of about 80 pb−1. The measured distributions are in agreement with Standard Model predictions, leading to constraints on WWγ gauge coupling parameters Δκγ and λγ. The results from the fit to the cross sections and to the energy and angular distributions of the photons are: Δκγ=0.05+1.15−1.10(stat)±0.25(syst), λγ=−0.05+1.55−1.45(stat)±0.30(syst).