Digital Commons Network^™

Alkyl Polyglycoside/1-Naphthol Formulations With Ultra-Low Interfacial Tensions Against N-Octane For Enhanced Oil Recovery, Stefan Iglauer, Yongfu Wu, Patrick Shuler, Yongchun Tang, William Goddard

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

We present Alkyl polyglycoside (APG)/1-naphthol formulations which show ultra-low interfacial tensions (IFT) against n-octane. We demonstrate that 1-naphthol is very efficient as a cosolvent in terms of reducing IFT. These formulations are therefore potentially suitable as agents for enhanced oil recovery (EOR). an increasing APG concentration strongly increased viscosity, and the formulations showed shear-thinning behavior. in a core flood EOR test we showed that this type of formulation significantly increased oil production. © 2010, European Association of Geoscientists and Engineers.

High-Strength Selfconsolidating Concrete Girders Subjected To Elevated Compressive Fiber Stresses, Part 1: Prestress Loss And Camber Behavior, Jared E. Brewe, John J. Myers

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The design of prestressed concrete members is restricted by the requirement that the extreme compressive fiber stress at midspan of simply supported members be less than 60% of the concrete compressive strength at release of prestressing. the purported purpose of this limit is to address serviceability performance, but it places unnecessary limits on the capability of the materials. for this research program, six prestressed concrete girders were produced with high-strength self-consolidating concrete and subjected to compressive fiber stress levels ranging from 65% to 84% of the concrete compressive strength at release of prestressing. Time dependent concrete surface strains were measured …

Trends In Environmental Concern By Grade Level: A Study Of Elementary, Middle, And High School Students, Ryan David Lensing

Dissertations and Theses @ UNI

Environmental concern has been frequently measured since the 1970's, however, much of this research has focused on adults. Of the studies that look at students, the majority focus on high school with little attention given to middle or elementary grades. None of these studies have looked at elementary, middle, and high school students from the same population. This study uses the NEP Scale for Children in conjunction with free response questions to examine the trends in environmental concern from 120 Catholic elementary, middle school, and high school students from Des Moines, Iowa. The findings show no significant differences in levels …

Creating Salsa, Claiming Salsa: Identity, Location, And Authenticity In Global Popular Music, William Guthrie Legrand

Dissertations and Theses @ UNI

Although Latin American ethnomusicological scholarship in the last twenty years has addressed much of the Caribbean, particularly Cuba, the popular genre salsa has often been treated as a side project of scholars with other specialties. Much of previous Latin American scholarship has favored nation-based, particularly folkloric, genres, while current trends have largely moved toward either re-engaging nation-based scholarship within postmodern critical contexts or addressing reggaeton as part of the scholarly fascination with global hip-hop culture. Salsa, which has always been created, contested, and claimed. through transnational/global routes, has therefore often been marginalized through its continued association with Latin American musical …

Motivation Factors As Indicators Of Academic Achievement: A Comparative Study Of Student-Athletes And Non-Athletes Academic And Social Motivation, Jonell Pedescleaux

Dissertations and Theses @ UNI

The purpose of this study was to investigate non-cognitive motivational factors as indicators of academic achievement of male athletes and male non-athletes as measured by a secondary data analysis of the College Student Inventory (CSI) from Fall 2003 to Fall 2005. Deci and Ryan's (2000) self-determination theory provided the conceptual framework for this study.

The CSI was administered through a survey technique. Participants in the survey sample were selected from 142 first semester freshman male athletes and male non-athletes enrolled at a Midwestern University.

The data gathered from the CSI provided information on non-cognitive variables of academic and social motivation …

Impact Of The Iowa Smoke-Free Ban Among The College Students Of The University Of Northern Iowa, Jean Marie Vianney Hirwa Kavamahanga

Dissertations and Theses @ UNI

The purpose of this study was to measure the effects of the Iowa Smoke-Free Ban impact on: smoking behavior, knowledge of the ban and knowledge of smoking health effect, reported smoking in both indoor and outside venues; support for smoke-free public venues; and self-reported effects of the law on consumption and quitting. A non-random sample of 113 students (49.44% male and 50.44% female) participated in this study.

The 35-item questionnaire was used to evaluate the impact of the Iowa smoke-free ban among college students of the University of Northern Iowa. Descriptive statistics were used to analyze the survey responses. The …

Effect Of Radar-Rainfall Uncertainties On The Spatial Characterization Of Rainfall Events, Pradeep V. Mandapaka, Gabriele Villarini, Bong Chul Seo, Witold F. Krajewski

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Remotely sensed precipitation products, due to their large areal coverage and high resolution, have been widely used to provide information on the spatiotemporal structure of rainfall. However, it is well known that these precipitation products also suffer from large uncertainties that originate from various sources. In this study, we selected radar-rainfall (RR) data corresponding to 10 warm season events over a 256 x 256 km² domain with a data resolution of 4 x 4 km² in space and 1 h in time. We characterized their spatial structure using correlation function, power spectrum, and moment scaling function. We then …

The Effect Of Crushed Ice Quantity On Interface And Intramuscular Temperatures During And Following Immersion, Christopher James Nelson

Dissertations and Theses @ UNI

Context: Latent heat of fusion of ice increases heat removal. Thus, a greater ice to water ratio during cooling and following immersion could enhance cooling efficacy. Moreover, a greater ice to water ratio could shorten treatment durations without reducing residual cooling effectiveness. Objective: Compare interface and muscle temperatures during and post-immersion using 2 ice to water ratios and treatment durations. Design: Crossover trial. Setting: Laboratory. Patients or Other Participants: Sixteen active volunteers (age= 21 ± 2yrs, ht= 173.0 ± 12.1cm, mass= 75.0 ± 12.4kg, skinfold= 21.7 ± 4.0mm, and girth= 37.2 ± 3.0cm) in accordance with university IRB. Interventions: During …

Gender Differences In The Prevalence Rates Of Self-Injury Among Individuals Who Suppress Thoughts, Kristina Isaacs

Theses, Dissertations and Capstones

A previous study (Najmi, Wegner, & Nock, 2007) has concluded that thought suppression and self-injury are related. Gender differences have been contradictory among those who self-injure. However, it has been found that females score higher than males on thought suppression scales (Wegner & Zanakos, 1994). Based on these findings, it was hypothesized that females would suppress their thoughts more than males. It was also hypothesized that females who suppress their thoughts would think about and engage in self-injury more than males who suppress their thoughts. Participants completed both the Self-Injurious Thoughts and Behavior Interview (SITBI) and the White Bear Suppression …

"A Cage Of Ovulating Females" : Mary Breckinridge And The Politics Of Contraception In Rural Appalachia, Dana Allen Johnson

Theses, Dissertations and Capstones

Mary Breckinridge and the Frontier Nursing Service have been the focus of intense scholarly effort over the last twenty years. Scholarship on Mary Breckinridge has centered on her healthcare reform work in Appalachia and its effects on the local residents and culture. This thesis examines the oral contraceptive trial that the FNS performed in Leslie County in the late 1950s and early 1960s. Although Breckinridge and the FNS maintained a restrictive contraceptive stance, they paradoxically permitted the contraceptive trial to be conducted on their patients in Leslie County. The decision to participate in the contraceptive trial resulted from a complex …

Comparison Of The Reading Subtests Of The Wechsler Individual Achievement Test - Third Edition And The Peabody Individual Achievement Test-Revised/Normative Update, Lauren M. Ott

Theses, Dissertations and Capstones

This study compared the reading subtests of the Wechsler Individual Achievement Test Third Edition and the Peabody Individual Achievement Test-Revised/Normative Update. Scores were compared on these two tests in a group of 28 students ages 7 through 12 who were referred or reevaluated for suspected learning problems. The data were collected through a deidentified data set provided by a school building staff member or administrator and included such information as gender, age, and grade level as well as WIAT-III and PIAT-R/NU reading subtest scores. A t test of significance and the Pearson r Correlations were computed to see how the …

Treatment Strategies In Acute Myelogenous Leukemia : Investigating Hsp90 And P53 As Targets, Jennifer M. Napper

Theses, Dissertations and Capstones

Acute myelogenous leukemia (AML) is the deadliest of the lymphatic and bone marrow cancers. Patients diagnosed with AML have a five year survival rate of 23.4%. AML is characterized by an accumulation of undifferentiated and functionless myeloid precursors in the bone marrow and blood. Heat shock protein 90 (Hsp90) inhibitors, such as 17-AAG, an analog of geldanamycin (GM), are currently undergoing phase I, and II and III clinical trials for various cancers with mixed results. I found distinct responses to 17-AAG treatment among the AML cell lines tested. I also discovered two mutant TP53 alleles in Kasumi-3 cells, an AML …

Planning For Secret Disclosure : Applying Berger's Planning Theory To The Disclosure Of Secrets, Sarah Rae Meadows Craiger

Theses, Dissertations and Capstones

This research examined the strategies used for secret disclosure with Berger’s Planning Theory’s (1997) hierarchy principle, which orders plans according to complexity. Afifi and Steuber’s (2009) Strategies for Sharing Secrets Scale categorizes secret disclosure strategies that vary in complexity. Based on Planning Theory’s hierarchy principle, it was hypothesized that when a plan to disclose a secret is thwarted, individuals will move from a less complex disclosure strategy to a more complex disclosure strategy. Findings revealed correlations between strategy complexity and order of strategy choice were low; the null hypothesis was accepted.

Predicting Mastery On The Westest 2 : A Comparison Of Map And Westest 2 Data, Miranda Noelle Haught

Theses, Dissertations and Capstones

Curriculum based measures are conducted in order to observe a student’s progress and gauge the development in the school’s curriculum. Schools are in need of gathering data to discover if students are progressing towards achieving proficiency on state standardized tests. This research determines what score or corresponding percentile needs to be reached on the MAP test in order to achieve mastery on WESTEST 2. Data was compared from students in a rural county in West Virginia who were tested in Mathematics and Reading on the MAP test and WESTEST 2. A Pearson product correlation between both the MAP test and …

Cross Informant Correlation : Validity Of The Conners Cbrs Parent And Teacher Scales, Tamara Ann-Harris Mitchell

Theses, Dissertations and Capstones

The purpose of this study is to determine the amount of cross informant agreement on the Conners Comprehensive Behavior Rating content scales between Parents and Teachers of students at the Marshall University Summer Enrichment Program. Data was analyzed by comparing the 11 common content scales on both forms and determining if there is a cross informant correlation that is significant. Results showed a low correlation coefficient, which suggests a weak relationship between parents and teachers.

An Analysis Of Strength And Ductility Of Ultrafine Grained Al Alloys, R. Kapoor, P. S. De, R. S. Mishra

Materials Science and Engineering Faculty Research & Creative Works

This paper brings together and compares data of various ultrafine grained (UFG) Al alloys processed through different routes. in general, the trend of decreasing ductility with increasing strength was observed for the UFG alloys. as compared to the coarse grained (CG) alloys, the UFG alloys show a lower ductility, a lower extent of work-hardening and a lower uniform elongation. Unlike the CG alloys, which show a large fraction of uniform to total elongation, in UFG alloys this fraction varies with processing technique. It is shown here that aging of some UFG Al alloys improves ductility. Further, it is shown that …

A Study Of Japanese Women Today: Changing Gender Roles And Attitudes Toward Marriage, Shiho Hosokawa

Dissertations and Theses @ UNI

Japanese women and men are getting married later in life than before and the number of Japanese choosing to live a single person's lifestyle has increased since the 1980's. In the 1970's, the number of women working outside the home was lower than now and most of those who did work, did so only to supplement their husband's income. Today, many Japanese women obtain college degrees and have a paid job, the same as men do. Yet, based on my personal experience and those of others I know, Japanese women often remain the primary caretakers in the home. They are …

Towards An Automation Of The Circle Method, Andrew Sills

Mathematical Sciences: Faculty Publications

The derivation of the Hardy-Ramanujan-Rademacher formula for the number of partitions of n is reviewed. Next, the steps for finding analogous formulas for certain restricted classes of partitions or overpartitions is examined, bearing in mind how these calculations can be automated in a CAS. Finally, a number of new formulas of this type which were conjectured with the aid of Mathematica are presented along with results of a test for their numerical accuracy.

Job Satisfaction Of New Hampshire Nursing Faculty, Patricia Marie Puglisi

Master's Theses and Capstones

The nursing shortage is a growing concern with the shortage of nurse faculty restricting entry of qualified students. A descriptive study of faculty from 11 New Hampshire nursing schools was conducted to determine nurse faculty satisfaction and factors contributing to satisfaction. A modified version, sent electronically of the Nurse Faculty Satisfaction Questionnaire measured faculty satisfaction. Of 159 faculty invited 74 (47%) participated. Overall, NH nurse faculty were highly satisfied as nurse educators with 78.4% rating overall satisfaction of 8 or higher on a 0 - 10 scale. The top three satisfiers were opportunity to work independently, sense of accomplishment from …

Testing The Selective Chivalry Theory In Iowa : Gender Sentencing Of Rural Property Offenders, Maria Dorothy Herring Koeppel

Dissertations and Theses @ UNI

During recent decades, sentencing patterns of offenders based on gender have been the topic of criminological and sociological research. There has been particular attention given to the lenient sentencing of female offenders compared to male offenders. Several research studies have found that gender affects the sentencing process in ways that are advantageous to female offenders, such as lower incarceration rates and shorter prison sentences. Despite the existing research on gender and sentencing, there are still several specific areas that need to be studied regarding this topic, such as property crimes and rural areas. The current research adds to the existing …

Testing The Relationship Between Body Dysmorphic Disorder And Pathological Skin Picking Using A Bidimensional Model Of ‘Fear’ And ‘Anger', Nicole Christine Egan

Dissertations and Theses @ UNI

Body image concerns are pervasive throughout Western culture, but there is a subset of the population who become so preoccupied with specific aspects of their appearance that it leads to clinically significant distress and impairment in their daily lives. This study examined symptoms of two disorders dealing with body concerns: Body Dysmorphic Disorder (BDD) and Pathological Skin Picking (PSP). The primary purpose of this study was to use the bidimensional model of 'fear' and 'anger' (Lara et al., 2006) to test the relationship between BOD & PSP. The model suggests that BDD and PSP are both characterized by high 'anger' …

Faculty Hiring Committees Perceptions Of Hiring Processes And Subjectivity, Laura Caraleen Foster

Dissertations and Theses @ UNI

Hiring the most capable applicants has a large impact on the bottom line of an organization. The most effective tools to identify talent are well known to IndustrialOrganizational Psychologists, but these analytical tools are used less frequently than less effective intuitive procedures, such as the traditional unstructured job interview. In a survey of university faculty, we found that the most important factor influencing the use of a selection tool was its perceived validity, but these perceptions were not wellcalibrated to actual criterion related validity. We found some evidence that perceived validity was influenced by implicit beliefs about hiring. A body …

Influence Of Interactions Between Turbulence And Radiation On Transmissivities In Hypersonic Turbulent Boundary Layers, A. M. Feldick, L. (Lian) Duan, M. F. Modest, M. P. Martín, D. A. Levin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

In the current paper, a high-fidelity large eddy simulation solver is coupled to our modified line-by-line radiative transport equation solver to study the effects of absorption turbulence-radiation interations in a hypersonic turbulent boundary layer, representative of the Orion CEV entering Earth's atmosphere, at peak heating condition. The turbulent and radiation fields represent extreme conditions typical of Orion, as the simulated boundary layer represents the region of high turbulence coupled to region of highest incident radiation. A simplification in the calculation of molecular spectra with a single temperature property database in allows for tractable calculation of spectral properties. A comparison of …

Direct Detection Of No Produced By High-Temperature Surface-Catalyzed Atom Recombination, Dušan A. Pejaković, Jochen Marschall, Lian Duan, Maria P. Martin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The surface-catalytic recombination of oxygen and nitrogen atoms to form nitric oxide was confirmed by the direct detection of product NO molecules, using single-photon laser-induced fluorescence spectroscopy. Experiments were performed from room temperature to 1200 K in a quartz diffusion-tube sidearm reactor enclosed in a high temperature tube furnace. Atomic nitrogen was generated using a microwave discharge, and atomic oxygen was produced via the rapid gas-phase titration reaction N + NO → O + N2. The use of isotopically labeled titration gases 15N16O and 15N18O allowed for the unambiguous identification of nitric oxide produced by the O + N surface …

Integration Mechanisms For Heading Perception, Elif M. Sikoglu, Finnegan J. Calabro, Scott A. Beardsley, Lucia M. Vaina

Biomedical Engineering Faculty Research and Publications

Previous studies of heading perception suggest that human observers employ spatiotemporal pooling to accommodate noise in optic flow stimuli. Here, we investigated how spatial and temporal integration mechanisms are used for judgments of heading through a psychophysical experiment involving three different types of noise. Furthermore, we developed two ideal observer models to study the components of the spatial information used by observers when performing the heading task. In the psychophysical experiment, we applied three types of direction noise to optic flow stimuli to differentiate the involvement of spatial and temporal integration mechanisms. The results indicate that temporal integration mechanisms play …

Motion Of The Multisegmental Foot In Hallux Valgus, Karl Canseco, Leah Rankine, Jason T. Long, Thomas Smedberg, Richard Marks, Gerald F. Harris

Biomedical Engineering Faculty Research and Publications

Hallux valgus is a common condition characterized by lateral deviation of the large toe and medial deviation of the first metatarsal. While some gait analyses of patients with hallux valgus have been performed using plantar pressures, very little is known about the kinematics of gait in this population. The purpose of this study was to evaluate triplanar kinematics in patients with hallux valgus using a multisegmental foot model. Materials and Methods: A 15-camera Vicon Motion Analysis System was used to evaluate the gait of 38 feet in 33 patients with mild to severe hallux valgus. The Milwaukee foot model was …

Selection And Cataloging For An Automated Retrieval Collection: Viewpoint Of A Cataloger, Debra G. Skinner

University Libraries: Faculty Publications

In the summer of 2004, Georgia Southern University began a library construction project that was to last 4 years. An important aspect was the installation of an Automated Retrieval System (ARC) to house a substantial portion of the library collections so that more space could be available for students, faculty, and the services to meet their needs. This paper traces the development of the use of the ARC to house collections, with emphasis on how materials were selected for the two phases of the project and how catalogers have adapted to the idea of collections that can only be browsed …

Technology Integration In Teaching Action Research, Alcione N. Ostorga

Bilingual and Literacy Studies Faculty Publications

This article describes an instructional model designed to teach action research to undergraduate preservice teachers, which uses technology integration to facilitate the learning process that incorporates face to face and distance learning methods. First, a theoretical overview of the instructional design is provided then the instructional model is described. The course design is analyzed through the use of Moore's levels of interaction. Finally, the author discusses the conclusions and implications for future research.

Citation Difficulties, Mariolina Rizzi Salvatori, Patricia Donahue

International Journal for the Scholarship of Teaching & Learning

Issues of citation have interested us for some time, especially as they relate to reductive and dismissive representations of student work in our professional discourse: for example, how scholarly articles foreground the status of students as “student” or how the move of referring to students by first name only is infantilizing (see Salvatori and Donahue, 2010). We also have a long standing interest in writing about teaching in ways that our primary field (English Studies) and SoTL would recognize as “scholarly”: intellectual inquiries into processes of teaching and learning that build upon previously published research, cite it appropriately, and acknowledge …

Communities Of Practice: An International Learning Experience, Deymond Hoyte, Steve Myers, Lana Powell, Richard Sansone, Kaye Walter

International Journal for the Scholarship of Teaching & Learning

Excerpt: Collaborative inquiry through communities of practice has long been recognized by SoTL scholars as a powerful way for teachers to improve the teaching and learning processes for their students. Communities of practice provide teachers the opportunity to share educational practices, the challenges...