Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Open Access Dissertations

Discipline
Institution
Keyword
Publication Year

Articles 871 - 900 of 2203

Full-Text Articles in Entire DC Network

Using Deception To Enhance Security: A Taxonomy, Model, And Novel Uses, Mohammed H. Almeshekah Jan 2015

Using Deception To Enhance Security: A Taxonomy, Model, And Novel Uses, Mohammed H. Almeshekah

Open Access Dissertations

As the convergence between our physical and digital worlds continue at a rapid pace, securing our digital information is vital to our prosperity. Most current typical computer systems are unwittingly helpful to attackers through their predictable responses. In everyday security, deception plays a prominent role in our lives and digital security is no different. The use of deception has been a cornerstone technique in many successful computer breaches. Phishing, social engineering, and drive-by-downloads are some prime examples. The work in this dissertation is structured to enhance the security of computer systems by using means of deception and deceit.


Explaining Relationship Satisfaction: Attachment, Technology Use, And Sexual Satisfaction In Long-Distance Relationships, Amanda Bloom Jan 2015

Explaining Relationship Satisfaction: Attachment, Technology Use, And Sexual Satisfaction In Long-Distance Relationships, Amanda Bloom

Open Access Dissertations

The purpose of this study was to better understand long-distance relationships (LDRs). More specifically, I examined how attachment style, technology use, and sexual satisfaction contribute to LDR satisfaction and compared the model to geographically close relationship (GCR) satisfaction. I also examined attachment style and LDR/GCR differences in amount of and channels of technology use. College students (N = 326), who were 18 years or older and identified as in a romantic relationship, completed the following measures: (a) Relationship Questionnaire (RQ; Bartholomew & Horowitz, 1991), which categorically measures attachment style; (b) a deconstructed version of the RQ, which provides a continuous …


Effects Of High-Protein And High-Fiber Breakfasts On Preschoolers' Feelings Of Fullness, Diet Quality And Memory, Mary Catherine Brauchla Jan 2015

Effects Of High-Protein And High-Fiber Breakfasts On Preschoolers' Feelings Of Fullness, Diet Quality And Memory, Mary Catherine Brauchla

Open Access Dissertations

ABSTRACT


Homecoming Festivals: The Re-Accentuated Image Of Don Quixote In Western Novel, Tatevik Gyulamiryan Jan 2015

Homecoming Festivals: The Re-Accentuated Image Of Don Quixote In Western Novel, Tatevik Gyulamiryan

Open Access Dissertations

The publication of Don Quixote (1605, 1615) impacted significantly the dynamics of Western literature. The renowned novel, which builds upon a considerable number of characters and episodes, is considered one of the most read and most analyzed pieces of literature in the world. This novel opens a wide platform for socio-political criticism, religious and cultural discussions, and literary analyses. For these reasons, critics read and study, and writers mention and imitate Cervantes’ novel up until today. A multitude of significant novels written by a variety of eminent authors share characteristics with Don Quixote, and thus become “quixotic.”


A Phenomenographic Study Of How Aerospace Engineers Experience Uncertainty When Making Design Decisions, Antonette T. Cummings Jan 2015

A Phenomenographic Study Of How Aerospace Engineers Experience Uncertainty When Making Design Decisions, Antonette T. Cummings

Open Access Dissertations

This study investigated the qualitatively different ways in which engineers working in aerospace-related industries experience uncertainty as they make design decisions. This study provides insight on how engineers increase their ability to manage various forms of uncertainty as they design large scale complex engineered systems. The results of this study are valuable for understanding learning trajectories of engineers beyond their academic experiences and for linking the professional and technical skills in industry to the undergraduate engineering learning experience.


Antecedents And Consequences Of Consumer – Customized Product Identification: An Identity Theory Perspective, Soyeon Kwon Jan 2015

Antecedents And Consequences Of Consumer – Customized Product Identification: An Identity Theory Perspective, Soyeon Kwon

Open Access Dissertations

Customization is considered one of the key sources of value creation in a highly competitive and segmented market. Recent research has demonstrated that the key to successful customization experiences lies in the degree to which consumers feel connected to a product that is customized. This study investigated consumers’ psychological connection to customized products by exploring the variable, “consumer-customized product identification (C-C identification).” Building upon identity theory and research on “extended self,” this study investigated (1) two key antecedents that influence C-C identification, (2) attitudinal and behavioral consequences of C-C identification, and (3) the moderating role of product involvement in C-C …


Exploring Perceived Communicative Competence In Upper-Level L1 And L2 Interactions In Higher Education, Heejung Kwon Jan 2015

Exploring Perceived Communicative Competence In Upper-Level L1 And L2 Interactions In Higher Education, Heejung Kwon

Open Access Dissertations

The present study explores how university-level second language learners of English prepare themselves for professional worlds in English-speaking environments in a North American context. I specifically look at how upper-level L2 students (second language learners) identify their needs and negotiate miscommunications and preconceived notions of L2 learners in various communicative events in the process of developing communicative competence (Canale & Swain, 1980; Hymes, 1972) and planning for their future careers. I also investigate how L1 English speakers (native speakers of English) form perceptions of L2 English speakers and negotiate miscommunications and misunderstandings while engaging in collaborative projects. Using ethnographic approaches …


The Experience Of Men After Miscarriage, Stephanie Dianne Rose Jan 2015

The Experience Of Men After Miscarriage, Stephanie Dianne Rose

Open Access Dissertations

Miscarriage is a relatively common event that occurs in approximately 15 to 20 percent of identified pregnancies (Maker & Ogden, 2003). Men and women often view miscarriage as a real and meaningful loss (Johnson & Puddifoot, 1996; McCreight, 2004). The vast majority of research focused on the experience of miscarriage has emphasized the feelings, thoughts, and behaviors of women (Conway & Russell, 2000; McCreight, 2004). However, minimal research exists focused on men’s experience after miscarriage (Rinehart & Kiselica, 2010). The present phenomenological study examined the experience of men after miscarriage including aspects such as responses (e.g., emotions and behaviors), coping, …


Dietary And Exercise Effects On Neural Responses To Visual Food Stimuli In Overweight And Obese Adults, Richard Sayer Jan 2015

Dietary And Exercise Effects On Neural Responses To Visual Food Stimuli In Overweight And Obese Adults, Richard Sayer

Open Access Dissertations

Results from human neuroimaging studies consistently demonstrate that obesity is associated with altered neural reward processing of food-relevant cues. These observations have caused some investigators to question whether behavioral interventions such as dietary manipulations or physical activity might modulate processing of food cues in reward-related brain regions. The use of functional magnetic resonance imaging (fMRI) to measure neural responses to visual food stimuli is a commonly utilized paradigm for assessing neural reward responses relating to ingestive behavior of foods in humans. Using this study design, limited evidence suggests that increases in dietary protein and participation in acute and chronic aerobic …


What If They Were Right? Title Ix And The Aiaw’S Philosophy Of Coaching And Athletic Administration., Robert Scott Russell Jan 2015

What If They Were Right? Title Ix And The Aiaw’S Philosophy Of Coaching And Athletic Administration., Robert Scott Russell

Open Access Dissertations

When Title IX was first signed into law in the United States in 1972, its intended purpose was to guarantee equal opportunity for women in educational settings. In collegiate athletics Title IX quickly became a battle ground. It became a battle ground over how to increase the number of female collegiate athletes without impacting men’s programs, and also a battle ground over who would have primary responsibility for the administration of women’s sports. When the male-dominated NCAA took over the administration of women’s varsity teams after a 10-year battle with the female-led AIAW, female athletic administrators were forced to relinquish …


Scaffolding Early Engineers' Design Learning With A Videogame: Investigating The Influence Of Minecraft As A Platform For Design Ideation, Corey Schimpf Jan 2015

Scaffolding Early Engineers' Design Learning With A Videogame: Investigating The Influence Of Minecraft As A Platform For Design Ideation, Corey Schimpf

Open Access Dissertations

In this manuscript a modified commercial game, Minecraft, was used to assist early engineering students' learning the design process. More specifically, a designed-based research approach was employed utilizing a concurrent mixed methods to investigate the use of Minecraft for learning about the concept generation stage of design. Survey instruments measuring understanding of the design process, in-depth interviews on students’ interactions with the platform and iterations of students’ virtual artifacts were captured for analysis. Although no learning gains were detected from pre to post instrument, several analytical methods including visual content analysis of students’ artifacts, discourse analysis of students’ framing of …


Essays On Nudging Customers’ Behaviors: Evidence From Online Grocery Shopping And Crowdfunding, Na Zhang Jan 2015

Essays On Nudging Customers’ Behaviors: Evidence From Online Grocery Shopping And Crowdfunding, Na Zhang

Open Access Dissertations

The dissertation consists of three essays that employ predictive analytics, structural modeling techniques and field experiments to understand and nudge customers’ behaviors in two types of online engagement platforms. The first one is customers’ purchase behaviors in an online grocery store and the other is customer’ contribution behaviors in a reward-based crowdfunding platform. In both contexts, we study how to actively nudge their behaviors. In Chapter 2, we investigates how, when dealing with products that are available in limited quantities, customers may be nudged to purchase them. Specifically, our main problem is to identify targeted customers to receive the limited …


A Comparison Of First-Semester Organic Chemistry Students’ Experiences And Mastery Of Curved-Arrow Formalism In Face-To-Face And Cyber Peer-Led Team Learning, Sarah Beth Wilson Jan 2015

A Comparison Of First-Semester Organic Chemistry Students’ Experiences And Mastery Of Curved-Arrow Formalism In Face-To-Face And Cyber Peer-Led Team Learning, Sarah Beth Wilson

Open Access Dissertations

The cyber Peer-Led Team Learning (cPLTL) workshops are a synchronous online adaptation of the educational intervention PLTL, in which students, under the guidance of undergraduate peer facilitators, collaboratively solve problems in small groups. The purpose of this parallel convergent mixed methods study was to assess the impact of implementing cPLTL in an organic chemistry course on students’ workshop experiences, performance, and development of curved arrow formalism skills. Statistical analyses revealed comparable attendance rates, distribution of course grades, and achievement on American Chemical Society First-semester Organic Chemistry Exams. However, plotting workshop grades by AB, C, and DFW grade groupings revealed that …


Cultivating Multicultural Education In Islamic Schools In The U.S: Teachers' Perspectives About Diversity In Islamic Schools, Kadriye El-Atwani Jan 2015

Cultivating Multicultural Education In Islamic Schools In The U.S: Teachers' Perspectives About Diversity In Islamic Schools, Kadriye El-Atwani

Open Access Dissertations

The purpose of this study was to examine the perspectives of six teachers who have taught in Islamic schools in the U.S. to comprehend the general context of multicultural education in Islamic schools. This study was designed as a descriptive collective case study primarily to investigate how racial, class, national, language and gender diversity were observed in six different Islamic schools’ climates and classrooms. Designing this research as a collective case study fostered the exploration of various social dynamics among Muslim communities in the U.S., and exemplified different characteristics of Muslim communities through the six cases. Key findings and analyses …


Race. Nation. Zombie: Imperial Masculinities Gazing At The Undead, Adryan Glasgow Jan 2015

Race. Nation. Zombie: Imperial Masculinities Gazing At The Undead, Adryan Glasgow

Open Access Dissertations

This dissertation argues that zombie narratives have always been about white masculinity and that colonialism is the true living dead monster. The zombie is not the load-bearing signifier in these stories. It is the white men who act as representatives of empire that embody tropes and evolve. This dissertation examines the survivor masculinity in zombie films over time to see how hegemonic masculinity has adapted to a range of national crises. I argue that the failure of white masculinities in these films and novel is rooted in the limited ways of knowing inherent in the Imperial Gaze. Starting in the …


Habit Formation In A Rodent Model Of Alcoholism: Genetic Susceptibility, Alcohol-Specific Effects, And Pharmacological Manipulation, David Scott O'Tousa Jan 2015

Habit Formation In A Rodent Model Of Alcoholism: Genetic Susceptibility, Alcohol-Specific Effects, And Pharmacological Manipulation, David Scott O'Tousa

Open Access Dissertations

Habit formation is a well-characterized process involving a shift from response-outcome as the leading driving force underlying action to a stimulus-response mechanistic process. It is hypothesized that a transition from goal-directed behavior to habitual behavior is driven by a transition of the bulk of cognitive load from neocortical toward lower neurological mechanisms. While many neurotransmitter systems have a demonstrated involvement in this process, the dopamine system is particularly implicated. Habit formation is assessed through the maintenance of extinction responding for an undesired, or devalued, outcome.


Cinderella And Other Fairy Tales As Secular Scripture In Contemporary America And Russia, Kate Christine Moore Koppy Jan 2015

Cinderella And Other Fairy Tales As Secular Scripture In Contemporary America And Russia, Kate Christine Moore Koppy

Open Access Dissertations

Koppy, Kate C. M. PhD, Purdue University, December 2015. Cinderella and Other Fairy Tales as Secular Scripture in Contemporary America and Russia. Major Professor: Charles Ross.


The Secret History Of The English Spy: 1674-1800, Slaney Chadwick Ross Jan 2015

The Secret History Of The English Spy: 1674-1800, Slaney Chadwick Ross

Open Access Dissertations

This project traces the emergence of the spy in the literature of the eighteenth century, arguing for spying's ideological transition within the cultural and literary imagination from a profession to a way of being. At stake in "The Secret History of the English Spy: 1674-1800" is the idea that surveillance, spying, and state secrecy inform and meaningfully intersect with eighteenth century narrative fiction. Through analysis of a variety of surveillance fictions, including spy narratives, financial tell-alls, periodicals, amatory secret histories, and domestic and Gothic fictions, I incorporate the idea of surveillance into eighteenth-century literary history in order to more thoroughly …


First Graders As Sensitive Social Partners And Skilled Readers, Zaira R. Arvelo Alicea Jan 2015

First Graders As Sensitive Social Partners And Skilled Readers, Zaira R. Arvelo Alicea

Open Access Dissertations

This mixed methods dissertation is guided by a sociocultural framework and a pragmatist stance to contribute to early literacy scholarship about minority children. In particular, I explore the relationship between low socioeconomic status Puerto Rican children’s reading experience and their social cognition by: (1) assessing them through quantitative and qualitative measures that reveal their capacities in these areas at the end of their first grade year, and (2) documenting their reading experiences at home and at school through ethnographic qualitative methods. The analyses revealed significant positive correlations between the tests of reading and social understanding, a scarcity of conventional reading …


Creation And Validation Of The Critical Thinking About Sustainability Scale, Vivian Gregory Alexander Jan 2015

Creation And Validation Of The Critical Thinking About Sustainability Scale, Vivian Gregory Alexander

Open Access Dissertations

Alexander, Vivian G. Ph.D., Purdue University, December 2015. Creation and Validation of the Critical Thinking about Sustainability Scale. Major Professor: Yukiko Maeda.


Temperance In The Age Of Feeling: Sensibility, Pedagogy, And Poetry In The Eighteenth Century, Sarah Hattie Maitland Jan 2015

Temperance In The Age Of Feeling: Sensibility, Pedagogy, And Poetry In The Eighteenth Century, Sarah Hattie Maitland

Open Access Dissertations

British Romanticism has traditionally been understood as participating in a narrative of progressive secularism. "Temperance in the Age of Feeling" seeks to challenge this narrative by examining the influence of temperance on Romantic conceptualizations of the relationship between sensation, thought, and feeling. I begin my argument by investigating Romantic notions of temperance as influenced by Book II of Spenser’s The Faerie Queene. I claim that Romantic temperance differs from classical temperance because Romantic temperance is concerned with balancing mental faculties while classical temperance is concerned with moderating passions. Next I consider how temperance influenced Romantic theories of the relationship …


At Home In The Diaspora: Domesticity And Nationalism In Postwar And Contemporary Caribbean-British Fiction, Kim Caroline Evelyn Jan 2015

At Home In The Diaspora: Domesticity And Nationalism In Postwar And Contemporary Caribbean-British Fiction, Kim Caroline Evelyn

Open Access Dissertations

This project investigates the ways in which home is conceptualized and represented in sixty years of the literature of the Caribbean diaspora in Britain by balancing texts from the post-World War II period with contemporary texts and considering how the diaspora has been imagined and reimagined. Making a home of a diaspora—typically considered as a collection of scattered and ostracized migrants— requires a conceptual leap, act of agency, and, sometimes, a flight of imagination. Through the imagery of domesticity and the rhetoric of nationalism, literary analyses of representations of diaspora allow us to explore the imagined constructs of diasporic homes. …


A Meta-Analysis Of Prescription Stimulant Efficacy: Are Stimulants Neurocognitive Enhancers?, Marisa E. Marraccini Jan 2015

A Meta-Analysis Of Prescription Stimulant Efficacy: Are Stimulants Neurocognitive Enhancers?, Marisa E. Marraccini

Open Access Dissertations

Prescription stimulant use for neurocognitive enhancement is a significant problem among college students with and without ADHD. The primary reason students report misusing stimulant medication is to enhance academic functioning. Given that increasing numbers of students are misusing prescription stimulants, it is critical to explore whether empirical findings support neurocognitive benefits of prescription stimulants. Hence, the primary purpose of this meta-analytic study was to examine the potential effects of prescription stimulants on cognitive functioning of adults with and without ADHD. A systematic search and retrieval process resulted in the calculation of effect sizes from 91 studies. Fourteen meta-analyses were conducted …


Toward A Psychosocial Understanding Of Suicide In American Literature And Culture Of The 1990’S, Sara E. Murphy Jan 2015

Toward A Psychosocial Understanding Of Suicide In American Literature And Culture Of The 1990’S, Sara E. Murphy

Open Access Dissertations

As a means of rectifying the problematic absence of multidisciplinary scholarly work on suicide, this dissertation project interrogates suicide in American literature and culture of the 1990’s across disciplines within the humanities, medicine, and the social sciences. Utilizing a psychosocial approach to the study of suicide – that is, an understanding of suicide as produced both by one’s psychological development within and by one’s social relationship to his or her environment – I address what I have identified as a unique trifurcated suicide response that arose in American culture in the 1990’s as it emerged through major societal and legal …


Stories That Shape: The Work Of Writing Program Administration, Marcy Isabella Jan 2015

Stories That Shape: The Work Of Writing Program Administration, Marcy Isabella

Open Access Dissertations

Assessment practices are part of the work of writing program administration (WPA), and the WPA function can take several forms. While some scholars champion certain constructions of WPA - be they collective, collaborative, post-masculinist, distributed, and so on - Stories that Shape: The Work of Writing Program Administration argues that what is most crucial isn’t that a program implements a particular construction, but that the specific construction in play suits the specific context of the program in which it is located. And because programs change - because the larger field of rhetoric and composition changes - the work of WPA, …


Nursing Satisfaction In A Magnet Hospital, Ahlam Hussain Abdullah Jan 2015

Nursing Satisfaction In A Magnet Hospital, Ahlam Hussain Abdullah

Open Access Dissertations

A cross sectional descriptive study was conducted to examine the relationship between staff nurses' self-perceptions of structural empowerment, self-perceptions of Magnet hospital characteristics and job satisfaction in a Magnet-designated community hospital in the Northeastern United States. Demographic variables of age, ethnicity, educational level, marital status and years of experience were also examined to determine the extent to which these variables can predict nurses' job satisfaction in a sample of 97 registered staff nurses. Simple linear regression analysis was used to answer the two research questions: What is the relationship between nurses' perception of structural empowerment level and job satisfaction? What …


Tracking Control For Non-Minimum Phase System And Brain Computer Interface, Yacine Boudria Jan 2015

Tracking Control For Non-Minimum Phase System And Brain Computer Interface, Yacine Boudria

Open Access Dissertations

For generations, humans dreamed about the ability to communicate and interact with machines through thought alone or to create devices that can peer into a person’s mind and thoughts. Researchers have developed new technologies to create brain computer interfaces (BCIs), communication systems that do not depend on the brain’s normal output pathways of peripheral nerves and muscles. The objective of the first part of this thesis is to develop a new BCI based on electroencephalography (EEG) to move a computer cursor over a short training period in real time. The work motivations of this part are to increase: speed and …


Undestanding Stage Of Change Transitions Across Multiple Behaviors, Leslie Ann Daline Brick Jan 2015

Undestanding Stage Of Change Transitions Across Multiple Behaviors, Leslie Ann Daline Brick

Open Access Dissertations

Health behavior research reveals that individuals vary in their general readiness to change their behaviors, as well as their attitudes and beliefs about that change. Adolescents are an important population for health behavior change interventions because the choices and behaviors early in life can have long-term health impacts. A large (N=42158), school-based Transtheoretical Model (TTM) randomized trial evaluated two tailored, computer-delivered multiple behavior interventions designed to impact energy balance behaviors, including physical activity, fruit and vegetable consumption, and TV viewing, or substance use, including smoking and alcohol. The study took place over a four-year period, with intervention points during grades …


Predictors Of Change In College Freshmen And Sophomore Cognitions Of Alcohol Expectancies, David Lee Villegas Jan 2015

Predictors Of Change In College Freshmen And Sophomore Cognitions Of Alcohol Expectancies, David Lee Villegas

Open Access Dissertations

This dissertation examined predictors of change in college freshmen and sophomore cognitions of alcohol expectancies through secondary analyses of data collected in a randomized brief motivational interview (BMI) intervention for at-risk college drinkers (N=1067). Positive and negative alcohol expectancies were assessed at 6 time points over a 2 year period. Information on the selected predictors, which include demographic, peer and family influence, alcohol use and problem, and other drug use variables, was collected at baseline. Change in alcohol expectancies over time was evaluated using linear mixed effects regression and hierarchical modeling procedures. Results indicated that positive and negative alcohol expectancies …


Predicting Co-Relapse Among Nutrition And Exercise From Adolescence Through Young Adulthood, Kristina Monteiro Jan 2015

Predicting Co-Relapse Among Nutrition And Exercise From Adolescence Through Young Adulthood, Kristina Monteiro

Open Access Dissertations

Despite significant public health efforts, obesity remains a stagnant outcome comprised of multiple health behaviors including fruit and vegetable intake (FV) and physical activity (PA). Existing research has provided correlates of FV and PA behaviors over development, with secular trends towards acquiring negative health behaviors (e.g., sedentary behaviors). This study examined demographic and dynamic predictors of FV and PA regression at one-year post-intervention within three samples including middle school, high school, and college. Regression is defined using the Transtheoretical Model (TTM) as being in Action or Maintenance at baseline and regressing to a pre-Action stage at one-year follow-up. The novel …