cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Three essays identifying consumer behavior by groups
Creators: name: Holmgren, Mark Andrew
Publisher: name: Washington State University
Year: 2010
Subjects: Consumer Behavior

description: This dissertation examines consumer behavior in different markets. Six different types of Utah snow skiers, namely, half day, local, multiday, college and k-12 students, and season ticket holders, are analyzed in the first paper to determine their demand response to changes in prices, income, weather, transportation costs, and particular days. A quadratic term for temperature, and interaction terms between temperature, snowfall, and snow density are included to allow for nonlinear impacts of these factors. The point price elasticity of demand and the point cross price elasticity of demand are computed. Skiers purchasing daily tickets are more price sensitive than season ticket holders except for college student season ticket holders. The second essay analyzes season ticket consumption behavior for different groups of skiers. This study uses three different approaches to model the decision process for the season ticket holder, for four different groups of skiers. The first approach shows how different prices affect the number of season tickets sold. The second compares the pay-per-use price of the season ticket to the daily price. The effects of price and different seasons on the average number of visits are analyzed in the third approach. For each of the groups of skiers, on average season ticket holders use the season ticket enough to be cheaper than the daily price. The third essay uses two models to identify the effect students' background characteristics have on first year cumulative gpa, and whether students with the same high school gpa from different high schools have the same level of success in college. The first model estimates the effect of different background characteristics on first year cumulative gpa and is used to identify high schools having a large number of outliers. The second model includes a dummy variable for each high school having a significant number of students attending wsu, as an intercept and slope shifter with high school gpa. The interaction term is the interaction between hsgpa and the high school dummy variable. Results show predicted first year success at college is not consistent for students with the same gpa from different high schools. [The dissertation citations contained here are published with the permission of ProQuest llc. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.].
title: Introduction_Radiotélégraphie et radiotéléphonie
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Introduction
description: ID_PARA_00815
title: Simulation of the debris flow occurred the 15 August 2010 on Rio Val Molinara Creek (northeast Italian Alps)
Creators: name: Boreggio, Mauro
name: Bernard, Martino
name: Alberti, Ruggero
name: Gregoretti, Carlo
Publisher: name: Mountain Scholar
Year: 2019
Subjects: debris flows
routing modeling
integrated hazard assessment approach

description: On the early morning of 15 August 2010, a runoff-generated debris flow routed along the Rio Val Molinara Creek and inundated the village of Baselga di Piné (Autonomous Province of Trento, northeast Italy) with about 50000 m3 of debris. Post-event field surveys allowed both the identification of the initiation area, and the estimate of the average erosion-deposition depths on different zones of the affected area. On one hand, the map of erosion-deposition depths along the Rio Val Molinara Creek was obtained by subtracting the corresponding pre- and post-event DEMs elevation values, interpolated by using the LiDAR data of two aerial surveys carried out in 2007 and 2011, respectively. On the other hand, the map of debris deposits on the inhabited fan was obtained by integrating the direct post-event field estimates and photo interpretation. In the research, the studied debris-flow event was simulated from the triggering to the inundation through a models cascade, which relies on the sequential application of rainfall- runoff, triggering, and routing models. After that, the routing model results were compared with the observed erosion-deposition pattern in order to assess the reliability of the proposed approach. In detail, the runoff was simulated in the initiation area and then used for building the solid-liquid hydrograph. After that, the solid-liquid hydrograph was routed downstream by means of a bi- phase GIS-based cell model, previously parametrized by using approximately the same values employed for the back-analysis of two debris-flow events occurred in the Dolomites (northeast Italian Alps). The comparison between the observed and simulated erosion-deposition depths and volumes is quasi-satisfactory. This is an important research outcome since the reliability of both debris-flow hazard assessments and risk analyses based on routing models relies on the trustworthiness of model simulations. In addition, due to the scarcity of pre- and post-event topographic surveys, the map of erosion-deposition depths might become a precious data source for testing the predictive capability of debris-flow routing models proposed in the literature by other authors.
The Pfaffian Sign Theorem for the Dimer Model on a Triangular Lattice
Creators: name: Bleher, Pavel
name: Elwood, Brad
name: Petrović, Dražen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B23

description: We prove the Pfaffian Sign Theorem for the dimer model on a triangular lattice embedded in the torus. More specifically, we prove that the Pfaffian of the Kasteleyn periodic-periodic matrix is negative, while the Pfaffians of the Kasteleyn periodic-antiperiodic, antiperiodic-periodic, and antiperiodic-antiperiodic matrices are all positive. The proof is based on the Kasteleyn identities and on small weight expansions. As an application, we obtain an asymptotics of the dimer model partition function with an exponentially small error term.
description: 32 pages, 10 figures
Gribov Copy and Complex Phase of Chiral Determinant
Creators: name: Aoyama, T.
name: Kikukawa, Y.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We calculate the complex phase of chiral determinant by the vacuum overlap formula with configurations of two-dimensional U(1) gauge field fixed in Landau and Laplacian gauge. The complex phase fluctuates over the Gribov copies, which appear in the process of Landau gauge fixing and contain vortex-like singularities. In the Laplacian gauge, the fluctuation can be reduced and the phase can be determined uniquely. If it is used as a preconditioning for Landau gauge fixing, the most smooth configuration is obtained among the copies generated.
description: Talk presented at LATTICE96(chiral gauge), 3 LaTeX pages with 5 postscript figures, need espcrc2.sty(included)
title: Migrant graduation specialists
title: Understanding their role in supporting secondary migrant students
titleType: Subtitle
Creators: name: Vivanco, Ismael
Publisher: name: Washington State University
Year: 2010
Subjects: Student counselors -- Attitudes

description: This action research study examined the role of the Migrant Graduation Specialists in public middle schools, junior high schools, and high schools participating in a special project called HOPE (Honing in On Post-secondary Education); and analyzed the viewpoint of migrant students participating in this project in order to determine their perception of the role of the Migrant Graduation Specialists in supporting secondary migrant students. Specifically, this study considered the following research questions: (a) What is the nature of the Migrant Graduation Specialists' role? (b) Which MGS activities have the most impact on secondary migrant students? (c) How do migrant students view their experience in school? and (d) What is the effectiveness of the MGS role in supporting secondary migrant students? The purpose and research questions for this action research helped guide this study throughout this process of inquiry. Additionally, this study relied on qualitative data, including individual interviews, focus groups, field notes and participant observation with Migrant Graduation Specialists and secondary migrant students. The data revealed eight findings critical to understanding the role of the Migrant Graduation Specialist (MGS) position. One of the key findings was that MGSs are there specifically to be the migrant students' biggest advocate. Also, data points out to the importance of providing migrant students with access to leadership skill building opportunities and extracurricular activities.
The 21cm Signature of the First Stars
Creators: name: Chen, Xuelei
name: Miralda-Escude, Jordi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We predict the 21-cm signature of the first metal-free stars. The soft X-rays emitted by these stars penetrate the atomic medium around their host halos, generating Lyman alpha photons that couple the spin and kinetic temperatures. These creates a region we call the Lyman alpha sphere, visible in 21-cm against the CMB, which is much larger than the HII region produced by the same star. The spin and kinetic temperatures are strongly coupled before the X-rays can substantially heat the medium, implying that a strong 21-cm absorption signal from the adiabatically cooled gas in Hubble expansion around the star is expected when the medium has not been heated previously. A central region of emission from the gas heated by the soft X-rays is also present although with a weaker signal than the absorption. The Lyman alpha sphere is a universal signature that should be observed around any first star illuminating its vicinity for the first time. The 21-cm radial profile of the Lyman alpha sphere can be calculated as a function of the luminosity, spectrum and age of the star. For a star of a few hundred solar masses and zero metallicity (as expected for the first stars), the physical radius of the Lyman alpha sphere can reach tens of kiloparsecs. The first metal-free stars should be strongly clustered because of high cosmic biasing; this implies that the regions producing a 21-cm absorption signal may contain more than one star and will generally be irregular and not spherical, because of the complex distribution of the gas. We discuss the feasiblity of detecting these Lyman alpha spheres, which would be present at redshifts $z\sim 30$ in the Cold Dark Matter model. Their observation would represent a direct proof of the detection of a first star.
description: replaced with ApJ accepted version. Many minor revisions and additional references, major results unchanged
Uniform infinite planar triangulation and related time-reversed critical branching process
Creators: name: Krikun, Maxim
Publisher: name: arXiv
Year: 2003
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05; 60J80 (Primary); 05C30; 05C80 (Secondary)

description: We establish a connection between the uniform infinite planar triangulation and some critical time-reversed branching process. This allows to find a scaling limit for the principal boundary component of a ball of radius R for large R (i.e. for a boundary component separating the ball from infinity). We show also that outside of R-ball a contour exists that has length linear in R.
description: 27 pages, 5 figures, LaTeX
Design and synthesis of novel antisense nucleopeptides and their biophysical evaluation
Creators: name: Park, Chung-Min
Publisher: name: Washington State University
Year: 2010
Subjects: Antisense nucleic acids

description: The ultimate aim of this research project is the development of a novel RNA-targeting nucleic acid surrogate that merges codified molecular recognition of nucleic acids with the ability of cell-penetrating peptides to translocate across cell membranes. Nucleobases are attached to side chains of amino acids at regular intervals on a cell-permeable backbone, which allows the sequence specific Watson-Crick base pairing. New surrogates were designed based on a cell-permeable polyprolyl peptide structures. An efficient modular synthesis in solution phase was successfully developed for homopolyprolyl nucleopeptides comprised of 15 and 30 prolines. A solid-supported segment coupling was also demonstrated to prepare an alternating nucleopeptide. The preliminary biophysical studies of the homopolyprolyl nucleopeptides with both ssDNA and RNA revealed that the proline-based nucleopeptides have a strong propensity to maintain an intrinsic PPII secondary structure, which is an unfavorable conformation that precludes Watson-Crick base pairing. The thermal denaturation studies of an alternating nucleopeptide, altHNP2, exhibited cooperative binding with both ssDNA and RNA. The affinity to RNA was higher than that of ssDNA. The altHNP2 forms a [RNA (altHNP2)2] triplex upon binding with both ssDNA and RNA. Each mismatch induced a penalty of 1 ~ 11 C in the observed melting temperature. Circular dichroism studies demonstrated that the secondary structure was a random coil, not a helical conformation. Hydroxyproline-based antisense agents were designed by modifications of altHNP2 and Micklefield's backbone extended pyrrolidine oligonucleotide mimic I (bePOM I). Theoretical studies by molecular mechanics revealed that the modified bePOM I has the lowest strain energy of the backbone, which forms a duplex with RNA. These studies provide the significant foundation for developing antisense nucleopeptides from readily available hydroxyproline moieties.
Accuracy of Semiclassical Methods for Shape Invariant Potentials
Creators: name: Hruska, Marina
name: Keung, Wai-Yee
name: Sukhatme, Uday
Publisher: name: arXiv
Year: 1996
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the accuracy of several alternative semiclassical methods by computing analytically the energy levels for many large classes of exactly solvable shape invariant potentials. For these potentials, the ground state energies computed via the WKB method typically deviate from the exact results by about 10%, a recently suggested modification using nonintegral Maslov indices is substantially better, and the supersymmetric WKB quantization method gives exact answers for all energy levels.
description: 7 pages, Latex, and two tables in postscript
Biosynthesis of Cyclotides
Creators: name: Shafee, Thomas
name: Harris, Karen
name: Anderson, Marilyn
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 3101
subject: Biochemistry and cell biology
classificationCode: 3108
subject: Plant biology
classificationCode: 310803
subject: Plant cell and molecular biology

description: No description supplied.
title: Consciousness blossoming
title: Islamic feminism and Qur'anic exegesis in South Asian Muslim diaspora communities
titleType: Subtitle
Creators: name: Turner-Rahman, Israt
Publisher: name: Washington State University
Year: 2009
Subjects: Muslim women -- South Asia

description: My dissertation asks if and in what capacities everyday South Asian transnational Muslim women are engaged in feminist interpretations or exegesis of the Qur'an. Furthermore, if everyday women are actively conducting interpretation, my research seeks to formulate and clarify the different paths women take in their understanding of the Qur'an. I hypothesize that transnational Muslim females in the West are located in a liminal space, and that it is this very point of dislocation that is likely to propel them to engage, interpret and ultimately be empowered to question existing masculine interpretations of the Qur'an. This dissertation utilized ethnographic methodology to explore the varied pathways everyday South Asian Muslim women take in their understanding of the Qur'an.
Theory of barrier vs tilt exchange gate operations in spin-based quantum computing
Creators: name: Shim, Yun-Pil
name: Tahan, Charles
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a theory for understanding the exchange interaction between electron spins in neighboring quantum dots, either by changing the detuning of the two quantum dots or independently tuning the tunneling barrier between quantum dots. The Hubbard model and a more realistic confining-potential model are used to investigate how the tilting and barrier control affect the effective exchange coupling and thus the gate fidelity in both the detuning and symmetric regimes. We show that the exchange coupling is less sensitive to the charge noise through tunnel barrier control (while allowing for exchange coupling operations on a sweet spot where the exchange interaction has zero derivative with respect to the detuning). Both GaAs and Si quantum dots are considered and we compare our results with experimental data showing qualitative agreements. Our results answer the open question of why barrier gates are preferable to tilt gates for exchange-base gate operations.
Bayesian multi--dipole localization and uncertainty quantification from simultaneous EEG and MEG recordings
Creators: name: Rossi, Filippo
name: Luria, Gianvittorio
name: Sommariva, Sara
name: Sorrentino, Alberto
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: 65C05, 92C50

description: We deal with estimation of multiple dipoles from combined MEG and EEG time--series. We use a sequential Monte Carlo algorithm to characterize the posterior distribution of the number of dipoles and their locations. By considering three test cases, we show that using the combined data the method can localize sources that are not easily (or not at all) visible with either of the two individual data alone. In addition, the posterior distribution from combined data exhibits a lower variance, i.e. lower uncertainty, than the posterior from single device.
description: 4 pages, 3 figures -- conference paper from EMBEC 2017, Tampere, Finland
title: Horizons of memory
title: A global processual study of cultural memory and identity of the South Asian indentured labor diaspora in the Indian Ocean and the Caribbean
titleType: Subtitle
Creators: name: Chowdhury, Amitava
Publisher: name: Washington State University
Year: 2008
Subjects: South Asian diaspora

description: The objective of this research is to assess and investigate the processes of formation and preservation of identity among the indentured labor populations that emigrated from India after the abolition of slavery in the Indian Ocean and the Caribbean plantations. This work fundamentally challenges the notion of an inherent, static and immutable Indian identity and moves away from those directions in the historiography that are concerned with the continuity and persistence of Indian traditions. Instead, it presents identity as a process, which is dynamic, adaptive, and contextual, and contingent on legal, ideological, political, demographic and economic determinants.
Effects of primordial helicity on CMB
Creators: name: Kahniashvili, Tina
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I present here a brief overview of the effects caused by parity violating cosmological sources (such as magnetic or kinetic helicity) on the CMB fluctuations. I discuss also primordial helicity induced relic gravitational waves. All these effects can serve as cosmological tests for primordial helicity detection.
description: for Proceedings of CMB Workshop at Irvine, March 2006; references added
title: Transmissible spongiform encephalopathies
title: Prion genetics, transmission barriers, and disease control
titleType: Subtitle
Creators: name: Harrington, Robert Dylan
Publisher: name: Washington State University
Year: 2008
Subjects: Prion diseases

description: Transmissible Spongiform Encephalopathies (TSE) are invariably fatal neurodegenerative diseases associated with misfolded prion protein. Host prion gene (PRNP) variation affects TSE transmission barriers within and between species, and forms the basis of disease control strategies. Reported herein are aspects of PRNP genetics related to prion transmission, species barriers, and management. A TSE species barrier in ruminant to carnivore transmission was investigated by the hypothesis that primary oral challenge with chronic wasting disease (CWD) causes a prion disease in mink. It was found that while CWD can cause a prion disease when given intracerebrally to mink, such disease is not characteristic of Transmissible Mink Encephalopathy (TME) and oral challenge does not result in disease. A novel PRNP variant at codon 27 variant may affect TSE transmission, possibly by altered membrane localization of normal prion protein. This study shows that CWD is poorly transmissible to non-cervid hosts, CWD is an unlikely cause of TME, and mink are an unlikely to be involved in natural CWD transmission. Thus, Bovine Spongiform Encephalopathy is the only ruminant TSE orally transmissible to mink suggesting that a previously unrecognized prion-like disease was a cause of some cases of TME. The effect of PRNP promoter regions upon TSE transmission was examined by the hypothesis that transgenic incorporation of the cervid PRNP putative promoter (PP) region and open reading frame (ORF) renders transgenic mice susceptible to CWD administered by intracerebral, intraperitoneal, and oral routes. Transgenic insertion of a mule deer PRNP PP and ORF transgene resulted in stable transcription and translation in mice without developmental, anatomical, or behavioral abnormalities. Transgenic mice accumulated disease associated prion protein following challenge with CWD, thus providing an alternative system for study of peripheral exposure routes in CWD pathogenesis. To determine adverse affects of PRNP selection for scrapie control a hypothesis that the sheep PRNP 171 arginine (R) allele is associated with higher prevalence of ovine progressive pneumonia virus (OPPV) and higher OPPV provirus levels was tested. Results showed that OPPV presence and provirus levels are independent of the PRNP 171R allele indicating that PRNP selection will not adversely affect OPPV within a flock.
Presidential campaign appearances in midterm U.S. House elections, 1982-2006
Creators: name: Mellen, Robbin B.
Publisher: name: Washington State University
Year: 2010
Subjects: Presidents -- United States

description: Presidents have invested their time and energy campaigning for members of their own party during midterm elections since the middle of the 20th century. Presidents, their advisors, the media, and the candidates they campaign for all believe the appearances have a positive effect on the outcome of the midterm elections. Yet, little empirical evidence exists suggesting that presidential appearances are anything more than window dressings. In this dissertation, I examine presidential midterm campaign visits on behalf of candidates for the United States House of Representatives between 1982 and 2006. I find evidence that campaign visits are strategically allocated to competitive House districts which supported the president in his previous electoral bid. I also find that presidential visits are allocated relatively equally to such districts, regardless of whether or not the president's co-partisan is favored to win the election. I examine the effects of presidential visits during midterm elections and find that visits produce little discernible effect on whether a co-partisan wins the election or upon her share of the popular vote. I find evidence of a limited effect on reducing the typical decline in voter turnout in midterm elections in the most competitive House races.
Wess-Zumino term by Vacuum Overlap Formula
Creators: name: Kikukawa, Y.
name: Miyazaki, S.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We examine the vacuum overlap formula for the two-dimensional SU(2) Wess-Zumino term in lattice regularization. Perturbatively it reproduces the Wess-Zumino term correctly in the continuum limit and yields the IR fixed point in the beta function of the chiral model. Nonperturbatively it shows a sharp Gaussian distribution for the SU(2) chiral field configurations in the scaling region, where smooth configurations dominate even in the symmetric phase due to asymptotic freedom. Crossover is sharp from the strong coupling region where the Wess-Zumino term fluctuates hard and the species doublers' contribution is suspected to affect it.
description: 21 LaTeX pages with 9 postscript figures, ptptex.sty included
title: Manioc mothers
title: Subsistence stability and the influence of tourism among the Napo Kichwas in the Ecuadorian Amazon
titleType: Subtitle
Creators: name: Allison, Kerensa Louise
Publisher: name: Washington State University
Year: 2010
Subjects: Indians of South America -- Economic aspects -- Ecuador -- Napo (Province)

description: The people of Sachayacu, an indigenous farming community in the Ecuadorian Oriente, continuously adjust to the fluctuating market economy. As it becomes too costly to transport their traditional crops like bananas and manioc to the markets, households planted coffee. As coffee prices dropped, households adopted cacao. During this research the economic endeavor for Sachayacu was tourism. This enterprise too came with unpredictability and unclear benefits. The one constant in this scenario of uncertainty was the important resources provided by women's subsistence gardens. The products from women's gardens provided a stable economic resource that was the foundation of each household and allowed for household exploration of market enterprises. Within Sachayacu there were variations in household economic strategies. Those households with increased market integration and greater economic wealth heavily influenced the decision-making process in the community. This was very apparent with the decision to introduce tourism into the community. The uncertainties and perceived inequalities the community associated with tourism resulted in social network breakdowns. Women were especially influenced by the introduction of tourism. Those women who participated in tourism no longer had time to keep "good" gardens. This factor led to increased dissatisfaction by men and women with the quality and quantity of their traditional activities (manioc gardens, household maintenance, social networking, etc.). Also those women who consistently did not participate in tourism were labeled killa (lazy), a very derogatory work-ethic stigma for Kichwas. As a result, women whether they participated in tourism or not, lost social status with this form of market integration. This research contributes to the growing body of knowledge addressing socio-cultural change in indigenous communities in relation to market-integration and socio-economic stratification with specific emphasis on gender affects. This has important implications for indigenous resource management decision-makers in this region and the wider international community interested in sustainable resource management and the preservation of cultural and biological diversity.
Simulation of the permanent deformation of asphalt concrete mixtures using discrete element method (DEM)
Creators: name: Zelelew, Habtamu Melese
Publisher: name: Washington State University
Year: 2008
Subjects: Asphalt concrete

description: This study describes a methodology for simulating the permanent deformation resistance behavior of asphalt concrete mixtures using the discrete element method (DEM). The microstructure of asphalt concrete cores was obtained through X-Ray CT imaging techniques. Rheological tests on asphalt binders and mastics were performed to characterize their viscoelastic properties and establish their strength. An Automated Digital Image Processing (DIP) algorithm, called Volumetric-based Global Minima (VGM) thresholding algorithm was developed in the MATLAB environment to process the AC X-ray CT images for DEM simulation. VGM identifies the gray scale intensity boundary thresholds between air, mastic and aggregate phases with reference to volumetric information. It involves three interdependent stages, namely image preprocessing, gray scale thresholding, and post-processing. The first stage involves image pre-processing for contrast enhancement and noise removal. The second stage is the main thresholding routine accepting as input the enhanced images of the first stage and volumetric information for the AC. It consists of two components, namely volumetrics-driven thresholding and three-dimensional representation and sectioning. The third stage further enhances particle separation through edge detection and image segmentation techniques. It was demonstrated that the VGM processed images are suitable for inputting to a numerical simulation technique such as FEM and DEM. This algorithm was shown to be a major improvement over the largely manual techniques used in the past. DEM simulations of unconfined uniaxial static creep tests in compression were performed to predict deformation behavior of the AC models. Moreover, the effect of contact stiffness ratio (Kn/Ks) and aggregate-to-aggregate contact friction ([mu]) on the deformation behavior of the AC model were investigated. Laboratory uniaxial compression static creep tests were performed on the same nine AC mixtures imaged by the VGM technique. The total axial strains and the creep compliance DEM predictions were compared with the experimental results. Overall, the slope of the secondary compression part of the creep compliance curves was satisfactorily predicted.
Effective Methods for Solving Band SLEs after Parabolic Nonlinear PDEs
Creators: name: Veneva, Milena
name: Ayriyan, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65

description: A class of models of heat transfer processes in a multilayer domain is considered. The governing equation is a nonlinear heat-transfer equation with different temperature-dependent densities and thermal coefficients in each layer. Homogeneous Neumann boundary conditions and ideal contact ones are applied. A finite difference scheme on a special uneven mesh with a second-order approximation in the case of a piecewise constant spatial step is built. This discretization leads to a pentadiagonal system of linear equations (SLEs) with a matrix which is neither diagonally dominant, nor positive definite. Two different methods for solving such a SLE are developed -- diagonal dominantization and symbolic algorithms.
description: 4 pages, 1 figure, 1 table
Critical state framework for interpretation of geotechnical properties of cement treated soils
Creators: name: Sariosseiri, Farid
Publisher: name: Washington State University
Year: 2008
Subjects: Soil cement -- Properties

description: This study examines the effectiveness of cement treatment on geotechnical properties of soils from Aberdeen, Everett, and Palouse regions from the state of Washington. The addition of cement was found to improve the drying rate and compaction characteristics of the soils. Significant improvement in unconfined compressive strength and modulus of elasticity are attained by cement treatment of these soils. Results of undrained triaxial tests showed that while cement treatment improved shear strength significantly, the type of failure behavior varied greatly. Non-treated, 5%, and 10% cement treated soils displayed ductile, planar, and splitting type of failure, respectively. For 10% cement treated soils pore pressures raised rapidly to confining pressures resulting in zero effective confining pressure at failure. Consequently, specimens split vertically. Therefore, while increase in strength can be achieved by cement treatment, high percentages of cement should be used with extreme caution in field applications. Mohr-Coulomb and Johnston failure criteria were applicable to predict shear strength of non-treated and 5% cement treated soils while Griffith and modified Griffith found to be applicable for non-treated, 5% and 10% cement treated soils. The results of triaxial tests on Aberdeen soil were interpreted using the critical state framework. As a result of cement treatment interlocking increased, critical state friction remained constant and soils displayed anisotropic behavior. The anisotropic model presented by Muhunthan and Masad (1997) was used to predict the undrained stress path. A combination of this model with extended Griffith theory can be used to predict the complete shear behavior of cement treated soil in q-p' space. The main contributions of this study to practice are quantifying improvement in mechanical behavior due to cement treatment and highlighting the fact that higher percentages of cement could turn stabilization from beneficial to an extremely dangerous practice.
Modifications on the existing design parameters to improve the performance of infiltration treatment BMPs in cold climates
Creators: name: Al-Houri, Zain Mohammed
Publisher: name: Washington State University
Year: 2008
Subjects: Water -- Purification -- Cold weather conditions

description: Many newly developed areas rely on infiltration treatment best management practices (BMPs) for managing excess stormwater runoff volumes. Semi-arid, cold climates pose unique challenges to designers of infiltration treatment BMPs. This study addresses two of the cold climate challenges and proposes modified design parameters to improve the performance of infiltration treatment facilities in these regions. The proposed modifications account for both: 1) reduced soil infiltration caused by frozen soils, and 2) increased runoff volumes during snowmelt and rain-on-snow events. To study the impacts of frozen conditions on the conductivity of soils, a laboratoryscale experiment was carried out on frozen soil columns collected from two BMPs sites located in the cities of Spokane and Richland, Washington. Hydraulic conductivity measurements were conducted on 16 frozen soil columns using a developed air permeameter flow test. The time allowed for soil-water redistribution prior to freezing was varied among the soil columns (t = 2, 4, 8, and 24 hr) to investigate its significance on the reduction of conductivity of frozen soils. Results showed that conductivity of frozen soils depends greatly on the time available for soil-water redistribution prior to freezing. Based on the results of this experiment, two regression equations were proposed to assist in the selection of appropriate hydraulic conductivity reduction factors for loam and sandy loam soils when designing infiltration treatment facilities subject to freezing conditions. Increases in runoff volumes caused by snowmelt and rain-on-snow events were investigated by the assessment of the initial abstraction ratio Ia/S in the SCS curve number (SCS-CN) equation. This was accomplished by designing, constructing and testing a 1.22 m wide x 2.44 m long rainfall simulator system to mimic design storm rainfall distributions on snow covering an impervious plot. By comparing calculated versus measured runoff hydrographs obtained from 19 rain-on-snow simulated under different snow conditions (snow depths and densities) and plot slopes, an alternative methodology for assigning Ia/S ratios during rain-on-snow events was developed. These new design parameters will result in more effective BMP designs in terms of runoff treatment. Nevertheless, the final designs will ultimately require larger and more costly stormwater facilities.
Giving Hope to Rebuild Lives: Practical and Emotional Support for Those Bereaved by Road Traffic Collisions
Creators: name: Walsh, Tomás
Publisher: name: UH Research Archive
Year: 2024
Subjects: subject: Bereavement
subject: Clinical Psychology
subject: Grief
subject: Grounded Theory
subject: Psychology
subject: FOS: Psychology
subject: Police
subject: Road Traffic Collisions

description: In the United Kingdom (UK), the Department for Transport (DfT) reported that 1,558 people died in Road Traffic Collisions (RTC) in 2021 (DfT, 2022). A considerable proportion of the UK population is impacted by RTCs yearly. RTC deaths involve police investigations, coronial processes, insurance claims, court (criminal and civil) proceedings, hospitals, and even media attention (Mitchell, 1997; WHO, 2004), which potentially impact the grief experience of bereaved families (Breen & O'Connor, 2009; Tehrani, 2004). There is limited literature on support for bereaved family members (Huang, 2016). To better understand what supports people bereaved by RTCs with their grief, feedback from RTC support service Road Victims Trust (RVT) was analysed, and RVT service users and staff were interviewed. Data was gathered and analysed using Grounded Theory, and a model of the process of grief, bereavement support and the impact of the Criminal Justice System was developed from the data. The model conceptualises grief as a dynamic process positively and negatively impacted by psycho-social factors, including counselling, informal support, practical support and the criminal justice system. The findings suggest that the Criminal Justice System significantly impacts the bereaved who wish to know what happened to their loved one. Family Liaison Officers (FLOs) can be a source of support and information for families but are constrained by the demands of their job and the needs of investigations. These constraints can frustrate families. RVT counsellors are given training in bereavement and legal processes; this specialist knowledge helps them to support bereaved families to normalise their grief and frustration. People who have been bereaved by RTCs believe they needed professional support from RVT very soon after bereavement and could not have waited six months, as is recommended in some literature. Some participants wanted to receive peer support from people who have been through RTC bereavement, but RVT does not offer such a service; they were ultimately satisfied with the counselling they received.
Symmetric quantum Weyl algebras
Creators: name: Diaz, Rafael
name: Pariguan, Eddy
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the symmetric powers of four algebras: $q$-oscillator algebra, $q$-Weyl algebra, $h$-Weyl algebra and $U({\mathfrak {sl}}_2)$. We provide explicit formulae as well as combinatorial interpretation for the normal coordinates of products of arbitrary elements in the above algebras.
description: To appear in the Annales Mathematiques Blaise Pascal
Microcomb-based true-time-delay network for microwave beamforming with arbitrary beam pattern control
Creators: name: Xue, Xiaoxiao
name: Xuan, Yi
name: Bao, Chengying
name: Li, Shangyuan
name: Zheng, Xiaoping
name: Zhou, Bingkun
name: Qi, Minghao
name: Weiner, Andrew M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Microwave phased array antennas (PAAs) are very attractive to defense applications and high-speed wireless communications for their abilities of fast beam scanning and complex beam pattern control. However, traditional PAAs based on phase shifters suffer from the beam-squint problem and have limited bandwidths. True-time-delay (TTD) beamforming based on low-loss photonic delay lines can solve this problem. But it is still quite challenging to build large-scale photonic TTD beamformers due to their high hardware complexity. In this paper, we demonstrate a photonic TTD beamforming network based on a miniature microresonator frequency comb (microcomb) source and dispersive time delay. A method incorporating optical phase modulation and programmable spectral shaping is proposed for positive and negative apodization weighting to achieve arbitrary microwave beam pattern control. The experimentally demonstrated TTD beamforming network can support a PAA with 21 elements. The microwave frequency range is $\mathbf{8\sim20\ {GHz}}$, and the beam scanning range is $\mathbf{\pm 60.2^\circ}$. Detailed measurements of the microwave amplitudes and phases are performed. The beamforming performances of Gaussian, rectangular beams and beam notch steering are evaluated through simulations by assuming a uniform radiating antenna array. The scheme can potentially support larger PAAs with hundreds of elements by increasing the number of comb lines with broadband microcomb generation.
description: 10 pages, 9 figures, Journal of Lightwave Technology, 2018
title: Locating women in the global economy
title: The gendered impacts of economic globalization on women in developing countries
titleType: Subtitle
Creators: name: Rice, Julie Anne
Publisher: name: Washington State University
Year: 2008
Subjects: Women -- Developing countries -- Economic conditions

description: Macro-comparative research on global inequality continues to marginalize women through theoretical and empirical neglect. This dissertation addresses this neglect by empirically showing macroeconomic processes impact women and men in developing countries differently, and by demonstrating socialist feminist theory provides insights into the macroeconomic mechanisms driving global inequality. This dissertation examines these empirical and theoretical issues in three independent chapters which share the common theme that gender relations is a driver of global inequality. The first study addresses the gender-neutral assumption that informs much macro-comparative research on global inequality by addressing the broad research question, to what extent are macroeconomic processes gender-neutral, if at all? To answer this question I use a socialist feminist perspective to analyze important variables found by previous research to influence human well-being. The results of panel OLS regression show that contrary to the gender-neutral assumptions dominating macro-comparative research, macroeconomic structures have different effects on female and male well-being in developing countries. The second study examines the contradictory effects of economic growth on women in developing countries by addressing the broad research question, how does economic development structure the opportunities available to women, relative to men, in developing countries? To answer this question I test the predictive power of structural disarticulation, a concept that explains how global capital structures the economies of developing countries. Results of OLS regression show economic development benefit women s well-being, yet may also create a disarticulated economy which is detrimental to women. Theoretically, structural disarticulation does not address gender relations. For insights I draw upon socialist feminist theory. The third study examines how global trade and finance interact with patriarchy to structure women s and men s labor force participation differently. Results of OLS regression show global trade and finance structure the labor force by sex that varies by region. Theoretically, I use socialist feminist theory to explain how global trade and finance interact with patriarchy to structure gender relations at the regional level. Methodologically, this study shows how macro-comparative research can better account for patriarchal and other forms of regional diversity by placing gender relations at the center of the analysis and conceptualizing patriarchy as a regional phenomenon.
title: The Americium/lanthanide separation conundrum
title: Selective oxidation or soft donor complexants?
titleType: Subtitle
Creators: name: Shehee, Thomas Charles
Publisher: name: Washington State University
Year: 2010
Subjects: Radioactive waste disposal

description: The key to managing the disposal of used nuclear fuel is not to consider it as a waste but rather as a resource. In a closed nuclear fuel cycle, the removal and transmutation of high specific activity isotopes can be accomplished to reduce the radiation levels of high level wastes to near uranium mineral levels after a few hundred years. Dissolved used nuclear fuel mixtures include U, Np, Pu, trivalent transplutonium actinides and lanthanides and other fission products, representing a total of about 1/3 of the periodic table. Americium, being a long-lived [alpha]-emitter, is the greatest contributor to the radiotoxicity of the waste in the 300-70,000 year time frame after removal from the reactor. The lanthanides, representing about 40% of the mass of fission products, are neutron poisons. They interfere with the transmutation process, necessitating removal before transmutation of the waste can be performed. The mutual separation of Am from chemically similar lanthanides remains one of the largest obstacles to the implementation of a closed nuclear fuel cycle in which Am is transmuted. Two possible pathways exist that could be utilized in the separation Am from Cm and the lanthanides. These pathways make use of selective oxidation of the actinide or soft donor complexants to perform a given separation. This dissertation contains a description of kinetics of lanthanide complexation and redox adjustment of americium followed by precipitation of the lanthanide to achieve actinide separations. The separations will be based on oxidation states and soft donor effects. Separations that will be performed in an advanced fuel cycle will take advantage of both of these aspects to make a successful reprocessing scheme.