Digital Commons Network^™

Constraining The Luminosity Function Parameters And Population Size Of Radio Pulsars In Globular Clusters, Jayanth Chennamangalam, D. R. Lorimer, Ilya Mandel, Manjari Bagchi

Faculty & Staff Scholarship

No abstract provided.

On Lagrangian Solutions For The Semi-Geostrophic System With Singular Initial Data, Mikhail Feldman, Adrian Tudorascu

Faculty & Staff Scholarship

No abstract provided.

Assessment Of Carbon Storage And Biomass On Minelands Reclaimed To Grassland Environments Using Landsat Spectral Indices, Tim Warner

Faculty & Staff Scholarship

This study investigated carbon (C) storage and biomass in grasslands of West Virginia reclaimed surface minesites. Mine-related disturbance and subsequent reclamation may be an important component of C cycling. Biomass and C storage generally increased for the first five years after reclamation, but then declined, suggesting a nonlinear pattern to vegetation recovery. Three 2007 Landsat 5 Thematic Mapper and Landsat 7 Enhanced Thematic Mapper Plus images were used to assess the potential to predict biomass from raw red and near infrared radiance, the tasseled cap transformation (TC), and four vegetation indices [normalized difference vegetation index, enhanced vegetation index (EVI), triangular …

Plasmon-Induced Photonic And Energy-Transfer Enhancement Of Solar Water Splitting By A Hematite Nanorod Array, Jiangtian Li, Scott K. Cushing, Peng Zheng, Fanke Meng, Deryn Chu, Nianqiang Wu

Faculty & Staff Scholarship

Plasmonic metal nanostructures offer a promising route to improve the solar energy conversion efficiency of semiconductors. Here we show that incorporation of a hematite nanorod array into a plasmonic gold nanohole array pattern significantly improves the photoelectrochemical water splitting performance, leading to an approximately tenfold increase in the photocurrent at a bias of 0.23 V versus Ag|AgCl under simulated solar radiation. Plasmon-induced resonant energy transfer is responsible for enhancement at the energies below the band edge, whereas above the absorption band edge of hematite, the surface plasmon polariton launches a guided wave mode inside the nanorods, with the nanorods acting …

Radio Continuum Observations Of Local Star-Forming Galaxies Using The Caltech Continuum Backend On The Green Bank Telescope, Katie Rabidoux, D. J. Pisano, Amanda A. Kepley, Kelsey E. Johnson, Dana S. Balser

Faculty & Staff Scholarship

We observed radio continuum emission in 27 local (D < 70 Mpc) star-forming galaxies with the Robert C. Byrd Green Bank Telescope between 26 GHz and 40 GHz using the Caltech Continuum Backend. We obtained detections for 22 of these galaxies at all four sub-bands and four more marginal detections by taking the average flux across the entire bandwidth. This is the first detection (full or marginal) at these frequencies for 22 of these galaxies. We fit spectral energy distributions (SEDs) for all of the four sub-band detections. For 14 of the galaxies, SEDs were best fit by a combination of thermal free-free and nonthermal synchrotron components. Eight galaxies with four sub-band detections had steep spectra that were only fit by a single nonthermal component. Using these fits, we calculated supernova rates, total number of equivalent O stars, and star formation rates within each ~23'' beam. For unresolved galaxies, these physical properties characterize the galaxies' recent star formation on a global scale. We confirm that the radio-far-infrared correlation holds for the unresolved galaxies' total 33 GHz flux regardless of their thermal fractions, though the scatter on this correlation is larger than that at 1.4 GHz. In addition, we found that for the unresolved galaxies, there is an inverse relationship between the ratio of 33 GHz flux to total far-infrared flux and the steepness of the galaxy's spectral index between 1.4 GHz and 33 GHz. This relationship could be an indicator of the timescale of the observed episode of star formation.

Psr J1840–1419: A Very Cool Neutron Star, E. F. Keane, M. A. Mclaughlin, M. Kramer, B. W. Stappers, C. G. Bassa, M. B. Purver, P. Weltevrede

Faculty & Staff Scholarship

No abstract provided.

Factors Affecting Spatial Variation Of Annual Apparent Q10 Of Soil Respiration In Two Warm Temperate Forests, Junwei Luan, Shirong Liu, Jingxin Wang, Xueling Zhu

Faculty & Staff Scholarship

A range of factors has been identified that affect the temperature sensitivity (Q10 values) of the soil-to-atmosphere CO2 flux. However, the factors influencing the spatial distribution of Q10values within warm temperate forests are poorly understood. In this study, we examined the spatial variation of Q10 values and its controlling factors in both a naturally regenerated oak forest (OF) and a pine plantation (PP). Q10 values were determined based on monthly soil respiration (RS) measurements at 35 subplots for each stand from Oct. 2008 to Oct. 2009. Large spatial variation of Q10 values was found in both OF and PP, with …

A Multidimensional And Multimembership Clustering Method For Social Networks And Its Application In Customer Relationship Management, Peixin Zhao, Cun-Quan Zhang, Di Wan, Xin Zhang

Faculty & Staff Scholarship

Community detection in social networks plays an important role in cluster analysis. Many traditional techniques for one-dimensional problems have been proven inadequate for high-dimensional or mixed type datasets due to the data sparseness and attribute redundancy. In this paper we propose a graph-based clustering method for multidimensional datasets. This novel method has two distinguished features: nonbinary hierarchical tree and the multi-membership clusters. The nonbinary hierarchical tree clearly highlights meaningful clusters, while the multimembership feature may provide more useful service strategies. Experimental results on the customer relationship management confirm the effectiveness of the new method.

Priorities For Research In Child Maltreatment, Intimate Partner Violence And Resilience To Violence Exposures: Results Of An International Delphi Consensus Development Process, C Nadine Wathen, Jennifer Cd Macgregor, Joanne Hammerton, Jeffrey H. Coben, Helen Herrman, Donna E. Stewart, Harriet L. Macmillan, Prevail Research Network

Faculty & Staff Scholarship

Background

Intimate partner violence (IPV) and child maltreatment (CM) are major global public health problems. The Preventing Violence Across the Lifespan (PreVAiL) Research Network, an international group of over 60 researchers and national and international knowledge-user partners in CM and IPV, sought to identify evidence-based research priorities in IPV and CM, with a focus on resilience, using a modified Delphi consensus development process.

Methods

Review of existing empirical evidence, PreVAiL documents and team discussion identified a starting list of 20 priorities in the following categories: resilience to violence exposure (RES), CM, and IPV, as well as priorities that cross-cut the …

Oral Region Homologies In Paleozoic Crinoids And Other Plesiomorphic Pentaradial Echinoderms, Thomas W. Kammer, Colin D. Sumrall, Samuel Zamora, William I. Ausich, Bradley Deline

Faculty & Staff Scholarship

The phylogenetic relationships between major groups of plesiomorphic pentaradial echinoderms, the Paleozoic crinoids, blastozoans, and edrioasteroids, are poorly understood because of a lack of widely recognized homologies. Here, we present newly recognized oral region homologies, based on the Universal Elemental Homology model for skeletal plates, in a wide range of fossil taxa. The oral region of echinoderms is mainly composed of the axial, or ambulacral, skeleton, which apparently evolved more slowly than the extraxial skeleton that forms the majority of the body. Recent phylogenetic hypotheses have focused on characters of the extraxial skeleton, which may have evolved too rapidly to …

Erratum To: Prescribing Pattern Of Antidiabetic Drugs And Achievement Of Glycemic Control In T2dm Patients Tertiary Care Hospital In North India, Ethiraj Dhanaraj, Amit D. Raval, Rajbharan Yadav, Anil Bhansali, Pramil Tiwari

Faculty & Staff Scholarship

No abstract provided.

The Narcissistic Teammate: Effects Of Narcissistic Subtypes On Self-Serving Attributional Biases, Ashley Brown

EWU Masters Thesis Collection

"The self-serving attributional bias in collaborative group efforts is the tendency for individuals to take more personal responsibility for the group's success and less personal responsibility for the group's failure. Much previous research has linked narcissism with self-serving behavior. Narcissism can be broken down into the grandiose subtype, characterized by superiority and entitlement, and the vulnerable subtype, characterized by low self-esteem and preoccupation with others' opinions. The purpose of the current study was to investigate whether grandiose and vulnerable narcissists engage in self- serving behavior differently in various situations. College students completed a team activity, which involved completing cognitive tasks …

Siggma: A Survey Of Ionized Gas In The Galaxy, Made With The Arecibo Telescope, B. Liu, T. Mcintyre, Y. Terzian, R. Minchin, L. Anderson, E. Churchwell, M. Lebron, D. Anish Roshi

Faculty & Staff Scholarship

A Survey of Ionized Gas in the Galaxy, made with the Arecibo telescope (SIGGMA) uses the Arecibo L-band Feed Array (ALFA) to fully sample the Galactic plane (30 < l < 75 and -2 < b < 2; 175 < l < 207 and -2 < b < 1) observable with the telescope in radio recombination lines (RRLs). Processed data sets are being produced in the form of data cubes of 2 degree (along l) x 4 degree (along b) x 151 (number of channels), archived and made public. The 151 channels cover a velocity range of 600 km/s and the velocity resolution of the survey changes from 4.2 km/s to 5.1 km/s from the lowest frequency channel to the highest frequency channel, respectively.RRL maps with 3.4 arcmin resolution and line flux density sensitivity of 0.5 mJy will enable us to identify new HII regions, measure their electron temperatures, study the physics of photodissociation regions (PDRs) with carbon RRLs, and investigate the origin of the extended low density medium (ELDM). Twelve Hn{\alpha} lines fall within the 300 MHz bandpass of ALFA; they are resampled to a common velocity resolution to improve the signal-to-noise ratio (SN) by a factor of 3 or more and preserve the line width. SIGGMA will produce the most sensitive fully sampled RRL survey to date. Here we discuss the observing and data reduction techniques in detail. A test observation toward the HII region complex S255/S257 has detected Hn{\alpha} and Cn{\alpha} lines with SN>10.

Strong List Edge Coloring Of Subcubic Graphs, Hongping Ma, Zhengke Miao, Hong Zhu, Jianhua Zhang, Rong Luo

Faculty & Staff Scholarship

We study strong list edge coloring of subcubic graphs, and we prove that every subcubic graph with maximum average degree less than 15/7, 27/11, 13/5, and 36/13 can be strongly list edge colored with six, seven, eight, and nine colors, respectively.

Determining The Relationship Between C-Reactive Protein, Visceral Fat, And The Metabolic Syndrome Risk Factors, Evan Hilberg

EWU Masters Thesis Collection

"The metabolic syndrome (MetS) is a diagnosis that includes several clinical criteria that indicate a higher than normal risk of developing cardiovascular disease. Central adiposity is considered a risk factor for the MetS and is also associated with increased mortality and morbidity. The use of ultrasonography (US) has made it possible to measure the amount of visceral fat (VF) in a cost-effective and non-invasive manner as opposed to computed tomography or magnetic resonance imaging. C-reactive protein (CRP), an acute phase inflammatory marker, has been associated with increased risk for cardiovascular disease and has been shown to have a relationship with …

Late Observations, Jason D. Ludlow

EWU Masters Thesis Collection

No abstract provided.

Elliptic Curves And Their Cryptographic Applications, Samuel L. Wenberg

EWU Masters Thesis Collection

"This thesis is a basic overview of elliptic curves and their applications to Cryptography. We begin with basic definitions and a demonstration that, given an elliptic curve addition, the points of an elliptic curve form a mathematical group. We then proceed to delve further into the mathematics, discussing torsion points on the group of elliptic curves before investigating the behavior of elliptic curves over finite fields wherein is given a proof of Hasse's Theorem on elliptic curves. With these tools, we discuss the discrete log problem, and the connection between elliptic curves and the field of cryptography. Finally, we look …

Use Of Magnetic And Olfactory Cues For Orientation By A Fossorial Rodent, Thomomys Talpoides, Dustin J. Cousins

EWU Masters Thesis Collection

"Fossorial, or below ground, living provides shelter from the elements and some predators, but comes at a cost with respect to metabolic requirements of movement and reduced, or altered, sensory cues. I examined the ability of the North American pocket gopher, Thomomys talpoides, to use magnetoreception and olfaction in navigation and foraging. Magnetoreception was tested using three manipulative experiments: 1) field homing of displaced animals, 2) nest location in an 8-arm maze, and 3) movement through a complex labyrinth. Homing results, analyzed by V-test, indicated that the gophers displaced from their burrow systems relied on magnetic cues for homing orientation. …

Leaves And Shrapnel, Michael Luke Belch

EWU Masters Thesis Collection

No abstract provided.

Transcending The Status Quo: A Communication Perspective For Improving Health Behaviors At Eastern Washington University, Nicole L. Ridnour

EWU Masters Thesis Collection

"There is a belief known as the 'college experience;' an experience that some understand as a right of passage. This notion continues to be passed from generation to generation; what happens without our noticing is that the demands of that 'college experience' are changing. Survey results indicate that this 'experience' continues to perpetuate, that college students have skewed perceptions of vulnerabilities and are willing to take unhealthy risks, all as part of the 'college experience.' Through a mixed methods approach, this research demonstrates that advances in remedial health education are positively affecting students 'abilities' to "gain access to, understand and …

Recreation Specialization And The Effects On Leave No Trace Attitudes Among The Climbers Of Mount St. Helens, Luke W. Parsons

EWU Masters Thesis Collection

No abstract provided.

The Gordon Game, Anthony Frenk

EWU Masters Thesis Collection

In 1992, about 30 years after Gordon introduced group sequencings to construct row-complete Latin squares, John Isbell introduced the idea of competitive sequencing, the Gordon Game. Isbell investigated the Gordon Game and found solutions for groups of small order. The purpose of this thesis is to analyze the Gordon Game and develop a brute force method of determining solutions to the game for all groups of order 12 (up to isomorphism) as well as for abelian groups of order less than 20. The method used will be a depth first search program written in MATLAB. Consequently, group representation using matrices …

The Watermark: A Journal Of The Arts - Vol. 20 - 2013, University Of Massachusetts Boston

The Watermark: A Journal of the Arts (1993-2014)

No abstract provided.

Farmers Markets And Food Security: A Critical Evaluation Of The Sociodemographic Factors Influencing Market Patronage In The Mississippi Delta, Mary Margaret Saulters

Honors Theses

Characterized by extreme poverty, limited access to fresh foods, and a high prevalence of nutrition-related disease, the rural Mississippi Delta represents an understudied and highly at-risk population in terms of food security. This paper explores the role of alternative foodways in the Delta, specifically examining the potential for farmers markets to improve community food security in rural, low- income areas. This study uses a mixed-methods approach to measure farmers market patronage among different racial and socioeconomic groups in the Mississippi Delta. The findings of this study indicate that while sociodemographic factors, such as race, income, and education are associated with …

The Effects Of Social Media On Fashion Consumption, Sydney Mccarthy

Honors Theses

The fashion industry, like most business in general, has been heavily impacted in recent years by the introduction of online social media. Social media has changed the way in which people not only communicate, but also how firms advertise and reach their consumer. The purpose of this research was to explore the ways social media impacts fashion consumption, specifically among the female, college-age demographic. Secondary research was used in the initial stages of the process to gather information prior to conducting primary research. Both qualitative and quantitative research was then conducted. The primary method for collecting qualitative data was personal …

A Raman Spectroscopic Study Of The Effects Of Hydrogen Bonding On 1,2,3-Triazole, Anna Craig

Honors Theses

The goal of this thesis is to analyze the effects of hydrogen bonding on liquid 1H- 1,2,3-triazole. Spectra of neat 1H-1,2,3-triazole are compared to simulated spectra and are found to differ greatly. The experimental spectrum, however, matches the simulated spectra of 1H-1,2,3-triazole dimers very well. This suggests that dimers play a large role in the liquid structure of 1H-1,2,3-triazole. Though tautomerism is thought to play a large role in the vibrational behavior of 1,2,3- triazole, the Raman spectra obtained here suggest that molecular dimers dominate the liquid state much more so than tautomerism. Even in aqueous solution, the simulated spectra …

Attending Law School: Lucrative Or Lunatic?, Anna Lennep

Honors Theses

The total number of law school graduates for the class of 2011 was 43,979 and of the 42,411 graduates whose employment status was known by March 15, 2012, less than 55% of graduates had found long-term, full-time jobs in a field that required bar passage. Less than 63% of graduates had found any job in a field that required bar passage. With so many graduates and so few jobs, prospective law students must consider the risk that at- tending law school has become for many of its graduates. This thesis uses recent graduate data to analyze the current woes of …

Spectroscopic Study Of Charge Transfer Induced Blue Shifting Of Pyrimidine/Water Mixtures On Silver Substrate, Annie Katherine Mcclellan

Honors Theses

Surface enhanced Raman spectroscopy (SERS) is a chemical method gaining much popularity in recent years. With the use of a roughened metal surface or metal nanoparticles, surface plasmon resonances enhance the electromagnetic field allowing for increased Raman signal. Pyrimidine, having two lone pairs of electrons, is capable of charge transfer interactions contributing to a SERS chemical enhancement factor as well. It has recently been reported that hydrogen bonding with water results in the blue-shifting of certain normal modes of pyrimidine. By comparing experimental polarized Raman spectra with the results of electronic structure calculations, the origin of this blue-shifting was found …

Where Two Or Three Gather In My Name: A History Of The Burns-Belfry Restoration And Racial Reconciliation Between Churches In Oxford, Mississippi, Bracey Harris

Honors Theses

This paper is an exploration of the intersection of race and religion in Oxford, Mississippi. In particular, it gives a history of the restoration of the Burns-Belfry Church in Oxford, Mississippi. The project was a cross-cultural effort to save the town's first church built by freedmen in 1868. Many individuals worked together to save the town's historic landmark. In addition, the work also examines attempts by churches in Oxford to improve race relations in the community. The work looks at how events held between these churches may be the key to forgiveness and racial harmony. The title is taken from …

France's Soul-Searching: Finding National Identity In Political Metaphors During The 2012 Presidential Election, Cody Leblanc

Honors Theses

This thesis examines the ways in which French national identity was constructed metaphorically during the 2012 presidential election. Due to the increased controversy surrounding the overt utilization of the term national identity following the 2007-2012 Sarkozy administration, candidates in the 2012 presidential election used metaphor as a means by which to define their own competing conceptions of French national identity. The goal of this study is to examine the phenomenon of national identity creation by addressing the following question: How does each principal candidate (François Hollande, Nicolas Sarkozy) in the French presidential election of 2012 use metaphor in order to …