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Exploratory Factor Analysis of the Geriatric Depression Scale Among Cardiac Patients

Description: The Geriatric Depression Scale (GDS) was originally designed as a measure for screening depression among elderly medical patients. Although this instrument is well validated among a general medical population, it has never been evaluated with specific regard to cardiac patients, the largest single group of medical patients over 40 years of age. A general cardiac sample of 655 patients completed the GDS within 10 weeks of the cardiac event. Exploratory factor analyses were conducted on the main sample, then on several subgroups of participants with regard to diagnostic category, gender, and age. The GDS generally produces factor structures with several symptom domains with a high rate of total variance. The myocardial infarction group endorsed general symptoms of depression whereas the coronary artery bypass graft group reported greater levels of despair regarding their condition. Overall, males primarily reported agitation and hopelessness while females reported symptoms of depressed mood.
Date: May 1998
Creator: Hupp, Gregory S.

An Exploratory Investigation of Marital Role Expectations and their Relationships to Perceived Parent-Child Relations and Perceived Family Integration

Description: Fifty-one male and 57 female college undergraduate students enrolled in an introductory psychology course responded to the Roe-Siegelman PCR Questionnaire, a modified form of Tharp's (1963b) Marital Role Expectation Form (MRE), and a Family Integration Scale as fulfillment of research participation requirements. Previous research had indicated that generally children who experienced love and warmth in their childhood home had marital role expectations of friendliness, spontaneity, adaptability, trust, responsibility, and leadership, while those who experienced rejecting and neglecting parental behaviors were more likely to have expectations of being seclusive, guilty, hostile, rigid, mistrustful, and irresponsible.
Date: May 1973
Creator: Hopewell, Clifford Alan

An Exploratory Study of a Self-Rating, Sentence Completion Method for Evaluating Marital Difficulties

Description: The purpose of this study is to explore a possible method of diagnosing marital difficulties. This is an exploratory investigation into the possibility of developing a particular method for marital diagnosis rather than a specific test for such a diagnosis. This method consists of a series of related sentence stems which the subject completes and then rates as to their degree of difficulty.
Date: August 1969
Creator: Walker, Martha Jane

An Exploratory Study of Laryngeal Movements During Performance on Alto Saxophone

Description: The purpose of this study was to investigate laryngeal movements in selected performance situations on alto saxophone. The specific research problems were to describe glottal activity in three selected musicians as they performed musical tasks with (1) various pitch ranges and registers, (2) fortissimo and pianissimo dynamic levels, (3) crescendo and decrescendo, (4) long tones with vibrato, and (5) legato and staccato styles of articulation. A fiberoptic laryngoscope was employed to gather the visual images, which were recorded on a sound synchronized video tape. A rating system was devised to provide graphic representation of the data. Results of the data indicated that the glottis was used as an airflow constrictor in certain performance situations, especially in pianissimo performance. Other conclusions were drawn, and suggestions for further research were discussed.
Date: December 1984
Creator: Peters, Jeffrey T. (Jeffrey Thomas)

An Exploratory Study of Restaurant Multi-unit Managers’ Development

Description: Development is important to the initial phase of a new restaurant multi-unit manager (MUM), and appropriate training should be conducted in concert with acceptance of the position. The purpose of this study is to explore the need for individual training of restaurant MUMs in order to facilitate a smoother transition between executive level management positions. The exhaustive literature review aided in the creation of three research questions to be answered through the interpretation of collected interview data. Restaurant MUMs were invited to participate via LinkedIn, a social media network for professionals. Semi-structured interviews were conducted with 17 restaurant MUMs over a two-week period and then transcribed into Word documents and uploaded into ATLAS.ti for analysis. The use of tools within ATLAS.ti, such as network mapping and semantic layouts, allowed the researcher to interpret the correlation between codes and themes created and therefore, answer the research questions. Conventionally, managers have to leave their restaurants or area for many days in order to obtain the necessary training to be more effective in their positions. This study has concluded that while MUMs are aware of their tasks and responsibilities, they are not aware of training available in order to gain the skillset necessary to complete the tasks. Blanket training programs will not work for MUMs, they need training to be customized to such areas as new openings, wide-spread markets and the changing workforce. More courses in developing others need to be implemented so MUMs can learn the skills needed to properly develop their managers into leaders.
Date: May 2014
Creator: Lentz, Kathryn J.

An Exploratory Study of Rural Values and Settings in Children's Picture Books

Description: The main problem of this research was to discover if children's picture books over the last fifty years have depicted rural values more significantly than urban values. One-hundred and one children's picture books were systematically chosen for analysis. This study takes an overall view of the history of children's literature. Also included is a review of the current studies and literature most germain to this study. Content analysis was used as the technique of data analysis, A descriptive analysis of the sample is also given. The study supports the main hypothesis that rural set, tings and rural values do occur more often than non-rural settings and urban values in children's picture books.
Date: August 1978
Creator: Holcombe, Karen E.

An Exploratory Study of Victim Reactions to Two Disasters

Description: The following chapters report an exploratory study of reactions to two disasters, a tornado and floods, which struck Dallas, Texas, in the spring of 1957. Although the findings and discussion are presented in the context of a somewhat shortened version of the time sequence described above, the major emphasis is on the differential impact of the two types of disaster agents and on the reactions of victims to disaster situations.Two disasters had occurred in the Dallas area, both having a major effect upon Negro areas of residence in that city. Furthermore, a rapid, impressionistic survey of the two areas made by Doctor Harry E. Moore of the Department of Sociology of the University of Texas and Doctor H. J. Friedsam of the Department of Sociology of North Texas State University, suggested that the two areas were also homogeneous in income level and. possibly in other ways. 5 Hence, the situation presented an opportunity to study and compare the residents' reactions to two different disaster agents. More specifically, it was felt that an exploratory study to determine whether or not there was Qadifference in the responses of tho victims to the tornado and floods could be undertaken.
Date: August 1963
Creator: Miller, James J.

Exploring Analog and Digital Design Using the Open-Source Electric VLSI Design System

Description: The design of VLSI electronic circuits can be achieved at many different abstraction levels starting from system behavior to the most detailed, physical layout level. As the number of transistors in VLSI circuits is increasing, the complexity of the design is also increasing, and it is now beyond human ability to manage. Hence CAD (Computer Aided design) or EDA (Electronic Design Automation) tools are involved in the design. EDA or CAD tools automate the design, verification and testing of these VLSI circuits. In today’s market, there are many EDA tools available. However, they are very expensive and require high-performance platforms. One of the key challenges today is to select appropriate CAD or EDA tools which are open-source for academic purposes. This thesis provides a detailed examination of an open-source EDA tool called Electric VLSI Design system. An excellent and efficient CAD tool useful for students and teachers to implement ideas by modifying the source code, Electric fulfills these requirements. This thesis' primary objective is to explain the Electric software features and architecture and to provide various digital and analog designs that are implemented by this software for educational purposes. Since the choice of an EDA tool is based on the efficiency and functions that it can provide, this thesis explains all the analysis and synthesis tools that electric provides and how efficient they are. Hence, this thesis is of benefit for students and teachers that choose Electric as their open-source EDA tool for educational purposes.
Date: May 2016
Creator: Aluru, Gunasekhar

Exploring Fear and Freud's The Uncanny

Description: Fear is one of the oldest and most basic of human emotions. In this thesis, I will explore the topic of fear in relation to literature, both a staple of the horror genre as well as a device in literary works, as well as in my own writings. In addition, I will use Sigmund Freud's theory of the “uncanny” as a possible device to examine the complexities of fear and its effects both on the mind and body through the medium of literature, and, more specifically, where and how these notions are used within my own short stories. By exploring how and why certain fears are generated, we may be able to better examine our own reactions in this regard.
Date: May 2007
Creator: Grizzle, Eric

Exploring flow among Division I and intramural athletes.

Description: This study explores the flow experiences of collegiate athletes. NCAA Division I athletes and intramural athletes (N = 180) completed a series of measures on their flow experiences. Comparisons were made regarding the characteristics of flow, the perceived facilitators of flow, the frequency of flow experiences, and explored the role of perceived ability. Using a person by situation interaction framework, this study singles out perceived ability as a person factor and competitive level as a situational factor to more clearly examine flow experiences. Results indicated distinctions between the two groups. Mainly, the intramural athletes reported experiencing the merging of action and awareness, autotelic experience, transformation of time and having clear goals more frequently than the NCAA Division I athletes. No group differences were found for flow frequency or flow facilitators. Perceived ability was found to have a weak, but significant relationship with specific flow facilitators and characteristics.
Date: May 2004
Creator: Peterson, Ryan J.

Exploring Fundamental Principles in the Study of Derived Relational Responding in Pigeons

Description: A persistent challenge for behaviorally-based accounts of learning has been providing an account of learning that occurs in the absence of systematically programmed contingencies of reinforcement. Symmetry, one type of emergent behavior, has been repeatedly demonstrated with humans, but has been considerably more difficult to demonstrate with non-humans. In this study, pigeons were exposed to a go/no-go procedure in which hue stimuli were presented full screen on a touchscreen monitor. Pigeons learned 12 baseline relations in less than 30 days. Traditional measures used to evaluate symmetry indicated that, during tests, three of the four birds responded more to the reverse of relations that were reinforced in training than to the reverse of relations that were not reinforced in training. However, additional analyses of these data suggests that these differences were driven by one of two trial types and that symmetry was only observed for one of the two predicted relations. These data systematically replicate and extend work by Urcuioli and colleagues and point to areas where further research is needed.
Date: August 2013
Creator: Hinnenkamp, Jay Evan

Exploring Inorganic Catalysis with Electronic Structure Simulations

Description: Organometallic catalysis has attracted significant interest from both industry and academia due to its wide applications in organic synthetic transformations. Example of such transformations include the reaction of a zinc carbenoid with olefins to form cyclopropanes. The first project is a computational study using both density functional and correlated wavefunction methods of the reaction between ethylene and model zinc carbenoid, nitrenoid and oxenoid complexes (L-Zn-E-X, E = CH2, NH or O, L = X = I or Cl). It was shown that cyclopropanation of ethylene with IZnCH2I and aziridination of ethylene with IZnNHI proceed via a single-step mechanism with an asynchronous transition state. The reaction barrier for the aziridination with IZnNHI is lower than that of cyclopropanation. Changing the leaving group of IZnNHI from I to Cl, changes the mechanism of the aziridination reaction to a two-step pathway. The calculation results from the epoxidation with IZnOI and ClZnOCl oxenoids suggest a two-step mechanism for both oxenoids. Another important example of organometallic catalysis is the formation of alkyl arenes from arenes and olefins using transition metal catalysis (olefin hydroarylation). We studied with DFT methods the mechanism of a novel Rh catalyst (FlDAB)Rh(TFA)(η2–C2H4) [FlDAB = N,N’ -bis(pentafluorophenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; TFA = trifluoroacetate] that converts benzene, ethylene and air-recyclable Cu(II) oxidants to styrene. Possible mechanisms are discussed.
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Date: May 2016
Creator: Karbalaei Khani, Sarah

Exploring job related stress and job satisfaction in a modern law enforcement communications division.

Description: One of the most neglected areas of criminological and social science research is the police communications or dispatch center. While research projects dealing with stress and job satisfaction are found in abundance for other occupations, studies specific to the police dispatcher are uncommon. The role of the dispatcher has changed significantly in the last few decades. Improvements in technology and changes in public expectations of emergency services have forever altered the communications professional. Dispatchers work in an environment reliant on information. There is tremendous pressure to process the information coming into a communications center quickly and correctly. A mistake could prove fatal. Work pressures, burnout, high employee turnover, low pay, and a lack of respect from police coworkers can easily result in negative emotional and psychological consequences for the dispatcher. An effective manager could reduce the feelings of stress and low job satisfaction this environment can facilitate. The current study utilizes survey data from a sample of police dispatchers and their managers in the Dallas/Fort Worth, Texas area. The purpose of the survey is to identify the level of stress and job satisfaction reported by the dispatchers and their managers. The effects of differing types of stress will be investigated. Other relationships such as length of service, education, gender, ethnicity, and agency size will also be addressed.
Date: May 2005
Creator: Burgess, Lavona

Exploring Lifestyle Orientation, Attitudes Toward Lifestyle Merchandising, and Attitudes Toward Lifestyle Advertising as Predictors of Behavioral Intention to Purchase Lifestyle Home Furnishing Products

Description: A number of lifestyle merchandising and advertising strategies are being used in the home furnishings industry. However, there is limited research regarding the effectiveness of these strategies. The purpose of this study was to explore consumers' attitudes toward the lifestyle concept. Analyses of several consumer behavior variables and descriptors offered noteworthy findings for the home furnishings industry. This study found that although lifestyle orientation is a valuable tool for delineating consumer markets, these segmentations were not significant determinates of consumers' preference for elements of the lifestyle construct. Retailers and manufacturers are not simply creating home furnishing collections that target the needs of specific psychographic segment, but rather creating lifestyles being aspired to obtain. Although respondents scored the attitude variables neutral, the current market environment offers many examples of successfully home furnishing implementations of the lifestyle concept. These success stories coupled with additional findings indicate consumers' positive response to lifestyle merchandising.
Date: May 2005
Creator: Wilbanks, Jennifer Kay

Exploring Memristor Based Analog Design in Simscape

Description: With conventional CMOS technologies approaching their scaling limits, researchers are actively investigating alternative technologies for ever increasing computing and mobile demand. A number of different technologies are currently being studied by different research groups. In the last decade, one-dimensional (1D) carbon nanotubes (CNT), graphene, which is a two-dimensional (2D) natural occurring carbon rolled in tubular form, and zero-dimensional (0D) fullerenes have been the subject of intensive research. In 2008, HP Labs announced a ground-breaking fabrication of memristors, the fourth fundamental element postulated by Chua at the University of California, Berkeley in 1971. In the last few years, the memristor has gained a lot of attention from the research community. In-depth studies of the memristor and its analog behavior have convinced the community that it has the potential in future nano-architectures for optimization of high-density memory and neuromorphic computing architectures. The objective of this thesis is to explore memristors for analog and mixed-signal system design using Simscape. This thesis presents a memristor model in the Simscape language. Simscape has been used as it has the potential for modeling large systems. A memristor based programmable oscillator is also presented with simulation results and characterization. In addition, simulation results of different memristor models are presented which are crucial for the detailed understanding of the memristor along with its properties.
Date: May 2013
Creator: Gautam, Mahesh

Exploring Process-Variation Tolerant Design of Nanoscale Sense Amplifier Circuits

Description: Sense amplifiers are important circuit components of a dynamic random access memory (DRAM), which forms the main memory of digital computers. The ability of the sense amplifier to detect and amplify voltage signals to correctly interpret data in DRAM cells cannot be understated. The sense amplifier plays a significant role in the overall speed of the DRAM. Sense amplifiers require matched transistors for optimal performance. Hence, the effects of mismatch through process variations must be minimized. This thesis presents a research which leads to optimal nanoscale CMOS sense amplifiers by incorporating the effects of process variation early in the design process. The effects of process variation on the performance of a standard voltage sense amplifier, which is used in conventional DRAMs, is studied. Parametric analysis is performed through circuit simulations to investigate which parameters have the most impact on the performance of the sense amplifier. The figures-of-merit (FoMs) used to characterize the circuit are the precharge time, power dissipation, sense delay and sense margin. Statistical analysis is also performed to study the impact of process variations on each FoM. By analyzing the results from the statistical study, a method is presented to select parameter values that minimize the effects of process variation. A design flow algorithm incorporating dual oxide and dual threshold voltage based techniques is used to optimize the FoMs for the sense amplifier. Experimental results prove that the proposed approach improves precharge time by 83.9%, sense delay by 80.2% sense margin by 61.9%, and power dissipation by 13.1%.
Date: December 2010
Creator: Okobiah, Oghenekarho

Exploring Relationships Between Recalled Parenting and Anaclitic and Introjective Depression

Description: This study related college students' remembered early relationships with parents to their depression symptoms and to dependent and self-critical subjective feelings. Undergraduates (N = 217, 118 female, 99 male) provided information regarding their current level of depression, overall functioning, subjective feelings of depression (Depressive Experiences Questionnaire), negative thoughts, interpersonal functioning, and recollections of their parents' behavior and attitudes. Depression symptoms were related to dependent and self-critical feelings and to recalled low parental care and high parental control. However, for women, paternal affection and, for men, paternal control, were unrelated to depression symptoms. Other results are inconclusive but, overall, provide evidence for the usefulness of Blatt's theory in assessing depression via dependent and self-critical subjective feelings.
Date: May 2000
Creator: Weisz, Adriana V.

Exploring Sustainability VALS: Sustainability Value, Lifestyle Practices and Stewardship

Description: Living sustainability is a set of behaviors for the long-term functioning of society. Sustainability VALS provides the clothing and textiles industry distinctive insight into comprehending the phenomenon through the application of the appropriate theoretical platform. The objectives are to identify the dimensionality of sustainability value, sustainability practices and sustainability stewardship in consumers’ perceptive, and to examine the impacts of sustainability value and stewardship on sustainability practices. Analyzing data (n = 239) from a southwestern university reveals the critical dimensions of sustainability lifestyle practices, sustainability value and sustainability stewardship. 62 out of 64 hypotheses were confirmed the significant impacts of sustainability values and stewardship on sustainability lifestyle practices. The findings revealed that the altruistic, openness to change, anthropocentrism, and ecocentrism values are influential sustainability values affecting on sustainability lifestyle practices. Given the theoretical perspective of sustainability VALS, sustainability stewardships can facilitate the holistic idea to incur consumer’s sustainability lifestyle practices.
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Date: December 2011
Creator: Lee, Stacy Hyun-Nam