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Attitudes about Caregiving: An Ethnicity by Generation Approach

Attitudes about Caregiving: An Ethnicity by Generation Approach

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Date: August 2016
Creator: Caballero, Daniela M
Description: The goal of this project was to understand ethnic and generational differences in attitudes towards caregiving and expected burden while taking into consideration factors such as gender, generation, familism, and acculturation. One hundred and sixteen young adults (ages 18-25) and 93 middle-age adults (ages 38-62) were enrolled in the study. Participants included European Americans, African Americans, and Hispanics. Using moderation analysis, two hypotheses were investigated: 1) Ethnicity relates to attitudes towards caregiving, moderated by gender, generation, familism, and acculturation. 2) Ethnicity and expected burden relate to each other, moderated by gender, generation, familism, and acculturation. Familism emerged as a moderator in the relationship between ethnicity and expected burden. Results suggested that the strength of the relationship between being African American and expecting burden was less for those with moderate familism (R =.078), slightly higher for low familism (R = .176), and the highest for high familism (R= .261). Additional results indicated that the strength of the relationship between being Hispanic, as opposed to being European American, and expected burden, was higher for middle-aged adults (R =.23) when compared to young adults (R =.19). The current findings lend support to the recently established idea that familism is not protective against burden ...
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Brand Management Capability and Brand Performance

Brand Management Capability and Brand Performance

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Date: August 2016
Creator: Iyer, Pramod P
Description: Brands are intangible assets that provide companies with the potential to extract higher rents or prices from customers. However, only few organizations are able to build and sustain brands over a long period of time. Brand management capability - the organization's ability to build and sustain brands becomes important for achieving sustainable competitive advantage. Despite the importance of brand management capability to organizations, majority of the brand management literature has primarily focused on the consumer perspective of brands. This gap in knowledge about the components of brand management capability impedes firms from replicating brand successes, and makes them reliant on brand managers. More recently, there have been multiple calls in literature to identify marketing-related organizational capabilities, which can provide organizations with a sustainable competitive advantage. The focus on developing marketing-based capabilities comes at a time when marketing is losing its influence in organizations. To this end, the current dissertation uses organizational capability theory and literature on brand management to identify the primary resource (intellectual capital comprising of structural, human, and relational capital), organizational culture type (clan, adhocracy, hierarchy, and market), and processes (strategic brand management, internal branding, and market information processes comprising of information acquisition, information transmission, conceptual utilization, and ...
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Can Imagination Travel the Distance?  Investigating the Role of Psychological Distance and Construal Level in Consumers' Elaborative Approach

Can Imagination Travel the Distance? Investigating the Role of Psychological Distance and Construal Level in Consumers' Elaborative Approach

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Date: August 2016
Creator: Dadzie, Charlene Ama
Description: Much of consumer behavior research focuses on how consumers process and evaluate information to make current decision. In contrast, many consumer choices ares are underpinned by the need to make choices that incorporate the past or future, other places, other people and other situations that are seemingly hypothetical. The imagination provides the chief means by which consumers are able to traverse this psychological distance. Construal Level Theory (CLT) explains how individuals are able to plan for the future, consider the perspective of another individual and even consider situations that are counter to reality. Construal mindsets are enacted when people form mental representations of distant objects, people, or places. In abstract construal mindsets, individuals think generally, in terms of global features of an object, person, or situation. On the other hand, concrete construal mindsets center around the detailed aspects of an object, person, or situation. These two different construal mindsets serve to help people cope with the uncertainty of the future. This is because abstract cosntruals are more likely than concrete construals to remain unchanged as distance from a future object, person, or place reduces. A number of consumer behavior settings require the use of the imagination. Sticking to a weight ...
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Compostable Soy-Based Polyurethane Foam with Kenaf Core Modifiers

Compostable Soy-Based Polyurethane Foam with Kenaf Core Modifiers

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Date: August 2016
Creator: Hoyt, Zachary
Description: Building waste and disposable packaging are a major component in today's landfills. Most of these are structural or thermally insulative polymer foams that do not degrade over a long period of time. Currently, there is a push to replace these foams with thermoplastic or biodegradable foams that can either be recycled or composted. We propose the use of compostable soy-based polyurethane foams (PU) with kenaf core modifiers that will offer the desired properties with the ability to choose responsible end-of-life decisions. The effect of fillers is a critical parameter in investigating the thermal and mechanical properties along with its effect on biodegradability. In this work, foams with 5%, 10%, and 15% kenaf core content were created. Two manufacturing approaches were used: the free foaming used by spray techniques and the constrained expansion complementary to a mold cavity. Structure-property relations were examined using differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), thermal conductivity, compression values, scanning electron microscopy (SEM), x-ray micro-computed tomography (micro-CT), and automated multiunit composting system (AMCS). The results show that mechanical properties are reduced with the introduction of kenaf core reinforcement while thermal conductivity and biodegradability display a noticeable improvement. This shows that in application properties can be ...
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Cooperative Strategy and Sources of Knowledge Integration Capability and Innovation: A Relational View

Cooperative Strategy and Sources of Knowledge Integration Capability and Innovation: A Relational View

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Date: August 2016
Creator: Acharya, Chandan
Description: Faced with the challenges to addressing the novelties of the changing business environments (e.g., new customer requirement, changes in customers taste and preferences, the introduction of new products or services by competitors), organizations seek to build collaboration among their employees who possess complementary knowledge. Integrating complementary knowledge enhances employees' ability to address environmental challenges and foster innovation. Despite the importance of knowledge integration for innovation, integration of such knowledge becomes difficult when employees lack a shared understanding of knowledge, and when the knowledge is newly generated. Because new knowledge is tacit in nature and highly personal to a particular individual, it is difficult to articulate, making knowledge integration (KI) an arduous task. Lack of shared understanding, the presence of new knowledge, and lack of common interests in employees creates three types of knowledge boundaries – syntactic (information processing) boundaries, semantic (interpretive) boundaries, and pragmatic (political) boundaries. The presence of knowledge boundaries makes it difficult for employees to share and access their knowledge with each other. To overcome the challenges related to the knowledge boundaries, employees use boundary-spanning objects, which are common lexicons, common meaning, and common interests, to share and access their knowledge across the boundaries. Although prior studies have ...
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"Counting Out The Harvest"

"Counting Out The Harvest"

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Date: August 2016
Creator: Lischau, Carol
Description: "Counting Out The Harvest" is a collection of poems exploring intimate encounters. The poems reflect on encounters with memories, family, and the natural and cosmic worlds. In one of the poems, "Red-Throated Anole," the speaker works desperately to save a small dying lizard. In "Ice Storm, Post-Divorce," the speaker attempts to decipher a cluster of ladybugs taking refuge in her room. In the title poem, a couple wonders patiently if their crop will eventually grow. In each of these poems there is a present longing for the construction of a meaningful identity by means of the encounter, but the intersection between speaker and world falls short of satisfaction, whether the faultiness lies in the body's inability to find full sustenance, or in the ever-changing fluidity of memory to find stability. But the poems progress from pressing against this difficulty toward finding a contented resignation to the world's cyclical order. The final line of the manuscript, "disrobe a layer to begin again," indicates an arrival at satisfaction, which is found ultimately in continuation.
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Customers' Attitudes toward Mobile Banking Applications in Saudi Arabia

Customers' Attitudes toward Mobile Banking Applications in Saudi Arabia

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Date: August 2016
Creator: Alshara, Mohammed Ali
Description: Mobile banking services have changed the design and delivery of financial services and the whole banking sector. Financial service companies employ mobile banking applications as new alternative channels to increase customers' convenience and to reduce costs and maintain profitability. The primary focus of this study was to explore the Saudi bank customers' perceptions about the adoption of mobile banking applications and to test the relationships between the factors that influence mobile banking adoption as independent variables and the action to adopt them as the dependent variable. Saudi customers' perceptions were tested based on the extended versions of IDT, TAM and other diffusion of innovation theories and frameworks to generate a model of constructs that can be used to study the use and the adoption of mobile technology by users. Koenig-Lewis, Palmer, & Moll's (2010) model was used to test its constructs of (1) perceived usefulness, (2) perceived ease of use, (3) perceived compatibility, (4) perceived credibility, (5) perceived trust, (6) perceived risk, and (7) perceived cost, and these were the independent variables in current study. This study revealed a high level of adoption that 82.7% of Saudis had adopted mobile banking applications. Also, the findings of this study identified a ...
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Data-Driven Decision-Making Framework for Large-Scale Dynamical Systems under Uncertainty

Data-Driven Decision-Making Framework for Large-Scale Dynamical Systems under Uncertainty

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Date: August 2016
Creator: Xie, Junfei
Description: Managing large-scale dynamical systems (e.g., transportation systems, complex information systems, and power networks, etc.) in real-time is very challenging considering their complicated system dynamics, intricate network interactions, large scale, and especially the existence of various uncertainties. To address this issue, intelligent techniques which can quickly design decision-making strategies that are robust to uncertainties are needed. This dissertation aims to conquer these challenges by exploring a data-driven decision-making framework, which leverages big-data techniques and scalable uncertainty evaluation approaches to quickly solve optimal control problems. In particular, following techniques have been developed along this direction: 1) system modeling approaches to simplify the system analysis and design procedures for multiple applications; 2) effective simulation and analytical based approaches to efficiently evaluate system performance and design control strategies under uncertainty; and 3) big-data techniques that allow some computations of control strategies to be completed offline. These techniques and tools for analysis, design and control contribute to a wide range of applications including air traffic flow management, complex information systems, and airborne networks.
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Decision-Making with Big Information: The Relationship between Decision Context, Stopping Rules, and Decision Performance

Decision-Making with Big Information: The Relationship between Decision Context, Stopping Rules, and Decision Performance

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Date: August 2016
Creator: Gerhart, Natalie
Description: Ubiquitous computing results in access to vast amounts of data, which is changing the way humans interact with each other, with computers, and with their environments. Information is literally at our fingertips with touchscreen technology, but it is not valuable until it is understood. As a result, selecting which information to use in a decision process is a challenge in the current information environment (Lu & Yuan, 2011). The purpose of this dissertation was to investigate how individual decision makers, in different decision contexts, determine when to stop collecting information given the availability of virtually unlimited information. Decision makers must make an ultimate decision, but also must make a decision that he or she has enough information to make the final decision (Browne, Pitts, & Wetherbe, 2007). In determining how much information to collect, researchers found that people engage in ‘satisficing' in order to make decisions, particularly when there is more information than it is possible to manage (Simon, 1957). A more recent elucidation of information use relies on the idea of stopping rules, identifying five common stopping rules information seekers use: mental list, representational stability, difference threshold, magnitude threshold, and single criterion (Browne et al., 2007). Prior research indicates ...
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Dimensions of Acculturation and Sexual Health among U.S. Hispanic Youth

Dimensions of Acculturation and Sexual Health among U.S. Hispanic Youth

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Date: August 2016
Creator: Driver, Nichola D
Description: Hispanic youth living in the U.S. share a disproportionate burden of risk for HIV, other STIs, and teen pregnancies. They also tend to report lower rates of condom use and higher rates of inconsistent condom use than other racial/ethnic groups. Furthermore, immigrant Hispanic adolescents experience a unique burden of sexual risk compared to their non-immigrant counterparts. These negative sexual health outcomes can severely derail the overall health, social mobility, and life opportunities of these adolescents. Social researchers have tried to explain these sexual risk disparities using the concept of immigrant acculturation, which is broadly defined as the process of adopting the cultural values and beliefs of a host society. Immigrant acculturation has been shown to play a key role in shaping youth attitudes and behaviors, including sexual risk behaviors (see Lee & Hahm, 2010). Yet, studies have largely overlooked the contextual components of acculturation that have been proposed in theoretical literature, specifically characteristics of the immigrant's receiving community. Furthermore, studies have not adequately explored the influence of acculturation on two crucial measures of sexual risk: teen pregnancy norms and condom use. Therefore, the current dissertation consists of two unique studies that examine the influence of acculturation, at both the individual ...
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Effect Size Reporting and Interpreting Practices in Published Higher Education Journal Articles

Effect Size Reporting and Interpreting Practices in Published Higher Education Journal Articles

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Date: August 2016
Creator: Stafford, Mehary T.
Description: Data-driven decision making is an integral part of higher education and it needs to be rooted in strong methodological and statistical practices. Key practices include the use and interpretation of effect sizes as well as a correct understanding of null hypothesis significance testing (NHST). Therefore, effect size reporting and interpreting practices in higher education journal articles represent an important area of inquiry. This study examined effect size reporting and interpretation practices of published quantitative studies in three core higher education journals: Journal of Higher Education, Review of Higher Education, and Research in Higher Education. The review covered a three-year publication period between 2013 and 2015. Over the three-year span, a total of 249 articles were published by the three journals. The number of articles published across the three years did not vary appreciably. The majority of studies employed quantitative methods (71.1%), about a quarter of them used qualitative methods (25.7%), and the remaining 3.2% used mixed methods. Seventy-three studies were removed from further analysis because they did not feature any quantitative analyses. The remaining 176 quantitative articles represented the sample pool. Overall, 52.8% of the 176 studies in the final analysis reported effect size measures as part of their major ...
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Effects of UE Speed on MIMO Channel Capacity in LTE

Effects of UE Speed on MIMO Channel Capacity in LTE

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Date: August 2016
Creator: Shukla, Rahul
Description: With the introduction of 4G LTE, multiple new technologies were introduced. MIMO is one of the important technologies introduced with fourth generation. The main MIMO modes used in LTE are open loop and closed loop spatial multiplexing modes. This thesis develops an algorithm to calculate the threshold values of UE speed and SNR that is required to implement a switching algorithm which can switch between different MIMO modes for a UE based on the speed and channel conditions (CSI). Specifically, this thesis provides the values of UE speed and SNR at which we can get better results by switching between open loop and closed loop MIMO modes and then be scheduled in sub-channels accordingly. Thus, the results can be used effectively to get better channel capacity with less ISI. The main objectives of this thesis are: to determine the type of MIMO mode suitable for a UE with certain speed, to determine the effects of SNR on selection of MIMO modes, and to design and implement a scheduling algorithm to enhance channel capacity.
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Eight-Year Course of Cognitive Functioning in Bipolar Disorder with Psychotic Features

Eight-Year Course of Cognitive Functioning in Bipolar Disorder with Psychotic Features

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Date: August 2016
Creator: Bain, Kathleen Marie
Description: The purpose of the current study was to examine neuropsychological functioning in patients with bipolar disorder (BD) with psychotic features. Data from a large, epidemiological study of patients with first-episode psychosis was used to examine verbal learning and working memory 10 years after onset of psychosis in patients with BD relative to patients with schizophrenia (SZ) and patients with psychotic major depressive disorder (MDD). Cross-sectional comparisons of verbal learning and working memory at the 10-year follow-up mirrored findings of relative performance at the 2-year follow-up (Mojtabai, 2000), as patients with SZ performed significantly worse than patients with psychotic affective disorders. When FEP patients' cognitive performance was examined longitudinally, all groups showed non-significant decline over time, with no significant diagnostic group differences after accounting for current symptoms. More frequent hospitalizations and longer treatment with antipsychotics were associated with poorer performance on cognitive testing 10 years after illness onset, but these associations disappeared when controlling baseline cognitive performance. Within the BD sample, current positive and negative psychotic symptoms were associated with poorer performance on cognitive testing. After controlling for baseline cognitive performance, markers of clinical course were unrelated to cognitive performance, consistent with existing literature on longitudinal cognitive functioning in patients with ...
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An Experimental Study of Bifurcated (Weekend and Weekday) and Unitary (Past Week) Retrospective Assessments of Sleep

An Experimental Study of Bifurcated (Weekend and Weekday) and Unitary (Past Week) Retrospective Assessments of Sleep

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Date: August 2016
Creator: Sethi, Kevin J.
Description: Discordance between weekday and weekend sleep schedules is common (Bonnet & Arand, 1995; Breslau, Roth, Rosenthal, & Andreski, 1997; Machado, Varella, & Andrade, 1998; Strauch & Meier, 1988; Tsai & Li, 2004). Brief retrospective self-report measures are essential for epidemiological research studies (Moul, Hall, Pilkonis, & Buysse, 2004), but self-reports are prone to error in recall, and the greater the variability in nightly sleep, the less reliable are retrospective reports (Babkoff, Weller, & Lavidor, 1996). More accurate self-report responses may be possible if measures prompt participants to consider variations in sleep schedules that are consistent (i.e., weekday and weekend sleep schedules). The current study experimentally examined whether Bifurcated (Weekday and Weekend) retrospective assessments of sleep are more accurate than Unitary (Past Week) assessments. Participants were randomly assigned to complete one of the two versions (Bifurcated vs. Unitary) of the Sleep Questionnaire. One hundred and thirty-one participants were included in the analyses. Results of a a series of analyses demonstrated that the Bifurcated version of the Sleep Questionnaire provided more accurate and less variable estimates of total sleep time than the Unitary version of the Sleep Questionnaire. Differences between the versions of the Sleep Questionnaire for other sleep variables were less ...
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Extensions of the General Linear Model into Methods within Partial Least Squares Structural Equation Modeling

Extensions of the General Linear Model into Methods within Partial Least Squares Structural Equation Modeling

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Date: August 2016
Creator: George, Benjamin Thomas
Description: The current generation of structural equation modeling (SEM) is loosely split in two divergent groups - covariance-based and variance-based structural equation modeling. The relative newness of variance-based SEM has limited the development of techniques that extend its applicability to non-metric data. This study focuses upon the extension of general linear model techniques within the variance-based platform of partial least squares structural equation modeling (PLS-SEM). This modeling procedure receives it name through the iterative PLS‑SEM algorithm's estimates of the coefficients for the partial ordinary least squares regression models in both the measurement model and the overall structural model. This research addresses the following research questions: (1) What are the appropriate measures for data segmentation within PLS‑SEM? (2) What are the appropriate steps for the analysis of rank-ordered path coefficients within PLS‑SEM? and (3) What is an appropriate model selection index for PLS‑SEM? The limited type of data to which PLS-SEM is applicable suggests an opportunity to extend the method for use with different data and as a result a broader number of applications. This study develops and tests several methodologies that are prevalent in the general linear model (GLM). The proposed data segmentation approaches posited and tested through post hoc analysis ...
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Friction Stir Welding of High Strength Precipitation Strengthened Aluminum Alloys

Friction Stir Welding of High Strength Precipitation Strengthened Aluminum Alloys

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Date: August 2016
Creator: Sidhar, Harpreet
Description: Rising demand for improved fuel economy and structural efficiency are the key factors for use of aluminum alloys for light weighting in aerospace industries. Precipitation strengthened 2XXX and 7XXX aluminum alloys are the key aluminum alloys used extensively in aerospace industry. Welding and joining is the critical step in manufacturing of integrated structures. Joining of precipitation strengthened aluminum alloys using conventional fusion welding techniques is difficult and rather undesirable in as it produces dendritic microstructure and porosities which can undermine the structural integrity of weldments. Friction stir welding, invented in 1991, is a solid state joining technique inherently benefitted to reduces the possibility of common defects associated with fusion based welding techniques. Weldability of various 2XXX and 7XXX aluminum alloys via friction stir welding was investigated. Microstructural and mechanical property evolution during welding and after post weld heat treatment was studied using experimental techniques such as transmission electron microscopy, differential scanning calorimetry, hardness testing, and tensile testing. Various factors such as peak welding temperature, cooling rate, external cooling methods (thermal management) which affects the strength of the weldment were studied. Post weld heat treatment of AL-Mg-Li alloy produced joint as strong as the parent material. Modified post weld heat treatment ...
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Friction Stir Welding of Precipitation Strengthened Aluminum 7449 Alloys

Friction Stir Welding of Precipitation Strengthened Aluminum 7449 Alloys

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Date: August 2016
Creator: Martinez, Nelson Y
Description: The Al-Zn-Mg-Cu (7XXX series) alloys are amongst the strongest aluminum available. However, they are considered unweldable with conventional fusion techniques due to the negative effects that arise with conventional welding, including hydrogen porosity, hot cracking, and stress corrosion cracking. For this reason, friction stir welding has emerged as the preferred technique to weld 7XXX series alloys. Aluminum 7449 is one of the highest strength 7XXX series aluminum alloy. This is due to its higher zinc content, which leads to a higher volume fraction of eta' precipitates. It is typically used in a slight overaged condition since it exhibits better corrosion resistance. In this work, the welds of friction stir welded aluminum 7449 were studied extensively. Specific focus was placed in the heat affected zone (HAZ) and nugget. Thermocouples were used in the heat affected zone for three different depths to obtain thermal profiles as well as cooling/heating profiles. Vicker microhardness testing, transmission electron microscope (TEM), and differential scanning calorimeter (DSC) were used to characterize the welds. Two different tempers of the alloy were used, a low overaged temper and a high overaged temper. A thorough comparison of the two different tempers was done. It was found that highly overaged aluminum ...
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Goodbye Seems to be the Hardest Word: Investigating Why, When, and How to Delete Brands

Goodbye Seems to be the Hardest Word: Investigating Why, When, and How to Delete Brands

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Date: August 2016
Creator: Davari, Arezoo Sadat
Description: Branding dates back to centuries ago when traders were trying to distinguish their products from others in order to promise a higher quality to their consumers. Today, brands are considered as intangible resources that can have a significant contribution to the firm performance. Based on the Resource-Based Theory (RBT), valuable, rare, inimitable, and non-substitutable brands are strategic resources that create superior value and play a key role in achieving a sustainable competitive advantage over rivals. In the process of developing and maintaining strong brands, brand managers constantly need to make multiple decisions. Whether to add, delete or retail brands are among the routine decisions that brand managers face in managing their brand portfolios. Brand managers need to regularly assess their brand portfolios in order to make sure they are not selling redundant brands. Through brand portfolio assessment, brand managers can recognize weak brands and delete the unprofitable brands from the portfolio in order to free up resources and reinvest them in their stronger and more successful brands to gain competitive advantage in the market. This admonition is in line with the RBT of competitive advantage. This dissertation builds upon and extends previous literature on RBT in the context of brand ...
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Is 100 Percent Debt Optimal? Three Essays on Aggressive Capital Structure and Myth of Negative Book Equity Firms

Is 100 Percent Debt Optimal? Three Essays on Aggressive Capital Structure and Myth of Negative Book Equity Firms

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Date: August 2016
Creator: Luo, Haowen
Description: This dissertation comprises of three related essays in regard of puzzling negative book equity phenomenon among U.S. public firms. In essay 1, I present the evidence that there is an increasing trend of negative book equity firms over the past 50 years, from 0.3% up to over 5% among publicly traded firms in US. In contrast to previous research which generally classify these firms as distressed firms with highly likelihood of bankruptcy, I propose a new method to separate Healthy Negative Book Equity Firms (HNBEF) from relatively more distressed negative book equity firms. The results show that HNBEF have much higher net income and interest coverage ratio, they survive longer, and pay more dividends. More interestingly, these firms are often actively increase share repurchases and debt issuance. These facts, combined with their strong profitability, indicate that managers of these firms are actively increasing their leverage and choose to be negative book equity firms. To explain the existence of HNBEF, in essay 2, I investigate several possible reasons that may contribute to the extreme leverage of these firms. I find that HNBEF are substantially undervalued by their book assets as stated on the balance sheet. In addition, the value of intangible ...
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Lifecycle Affordability Decisions

Lifecycle Affordability Decisions

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Date: August 2016
Creator: Pourrezajourshari, Saba
Description: SpaceX as aerospace manufacturer and space transport service technology company work along to make reusable rockets, their long term plan is to make spaceflight affordable routine. Elon Musk, as CEO, is involved in every step of decision making as he has mentioned in interviews. The rocket's engine has undergone a number of improvements, and to increase its efficiency and power, a number of parts has been reduced. The redesigning process involves several decisions, such as in-house or out-source production. This research provides a practical framework for contractors, suppliers, and manufacturers to build a more reliable, affordable, and low cost supply chain. As a result, the objective of my dissertation is to explore how managers can extend the useful life of their assets and reduce their total cost of ownership. The main research focus for this dissertation is lifecycle affordability (LCA) for capital intensive products when post production costs are significantly higher than production costs. Lifecycle cost is often not considered by firms in a product, service or asset when making acquisition decisions. Firm's acquisition are mainly based on the initial cost of the product. Decision making without considering the entire lifecycle cost of a product impacts the firm's profitability, revenue, ...
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Market Efficiency, Arbitrage and the NYMEX Crude Oil Futures Market

Market Efficiency, Arbitrage and the NYMEX Crude Oil Futures Market

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Date: August 2016
Creator: Nishi, Hirofumi
Description: Since Engle and Granger formulated the concept of cointegration in 1987, the literature has extensively examined the unbiasedness of the commodity futures prices using the cointegration-based technique. Despite intense attention, many of the previous studies suffer from the contradicting empirical results. That is, the cointegration test and the stationarity test on the differential contradict each other. In marked contrast, my dissertation develops the no-arbitrage cost-of-carry model in the NYMEX light sweet crude oil futures market and tests stationarity of the spot-futures differential. It is demonstrated that the primary cause of the "cointegration paradox" is the model misspecifications resulting in omitted variable bias.
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Microstructure for Enhanced Plasticity and Toughness

Microstructure for Enhanced Plasticity and Toughness

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Date: August 2016
Creator: Das, Shamiparna
Description: Magnesium is the lightest metal with a very high specific strength. However, its practical applicability is limited by its toughness and reliability. Mg, being HCP has low ductility. This makes the improvement of toughness a grand challenge in Mg alloys. Friction stir processing (FSP) is a thermomechanical technique used to effect microstructural modification. Here, FSP was utilized to affect the toughness of WE43 sheets through microstructural modification. Room temperature Kahn-type tests were conducted to measure the toughness of WE43 sheets. Microscopic techniques (SEM, TEM) was utilized to study the effect of various microstructural factors like grain size, texture, constituent particles, precipitates on crack initiation and propagation. Tensile properties were evaluated by mini-tensile tests. Crack growth in WE43 sheets was also affected by mechanics and digital image correlation (DIC) was utilized to study the plastic zone size. The underlying mechanisms affecting toughness of these sheets were understood which will help in formulating ways in improving it. WE43 nanocomposites were fabricated via FSP. Uniform distribution of reinforcements was obtained in the composites. Improved mechanical properties like that of enhanced strength, increased hardness and stiffness were obtained. But contrary to other metal matrix composites which show reduction in ductility with incorporation of ceramic ...
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The Moderating Effect of Religiosity on the Relationship between Attachment and Psychological Wellbeing in a Muslim-American Sample

The Moderating Effect of Religiosity on the Relationship between Attachment and Psychological Wellbeing in a Muslim-American Sample

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Date: August 2016
Creator: Khan, Arubah
Description: Although research on attachment theory has grown exponentially in the field of psychology, few studies exist that examine this theory among young Muslim-American adults, despite the fact that Muslim-Americans represent a significant and growing segment of the U.S. population. The first goal of the current study was to replicate the results of previous studies demonstrating a strong relationship between attachment and the selected wellbeing indicators of psychological symptoms and life satisfaction. The second goal of the proposed study was to examine the relationships among maternal attachment, Islamic religiosity, and psychological wellbeing. Findings provided partial support to the direct effects of attachment and religiosity variables on particular outcome variables but did not support the moderating effect of religiosity. High maternal Control was found to be predictive of less psychological distress, whereas both maternal control and care were found to be negatively associated with an interpersonal behaviors aspect of religiosity. In addition, those who endorsed practicing Islamic rituals were found to report less life satisfaction, and individuals who viewed the world through an Islamic lens reported higher psychological distress. Discussion on the findings, limitations of the study, future research directions, and counseling implications are addressed.
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The Most Expressionist of All the Arts: Programs, Politics, and Performance in Critical Discourse about Music and Expressionism, c. 1918-1923

The Most Expressionist of All the Arts: Programs, Politics, and Performance in Critical Discourse about Music and Expressionism, c. 1918-1923

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Date: August 2016
Creator: Carrasco, Clare
Description: This dissertation investigates how German-language critics articulated and publicly negotiated ideas about music and expressionism in the first five years after World War I. A close reading of largely unexplored primary sources reveals that "musical expressionism" was originally conceived as an intrinsically musical matter rather than as a stylistic analog to expressionism in other art forms, and thus as especially relevant to purely instrumental rather than vocal and stage genres. By focusing on critical reception of an unlikely group of instrumental chamber works, I elucidate how the acts of performing, listening to, and evaluating "expressionist" music were enmeshed in the complexities of a politicized public concert life in the immediate postwar period. The opening chapters establish broad music-aesthetic and sociopolitical contexts for critics' postwar discussions of "musical expressionism." After the first, introductory chapter, Chapter 2 traces how art and literary critics came to position music as the most expressionist of the arts based on nineteenth-century ideas about the apparently unique ontology of music. Chapter 3 considers how this conception of expressionism led progressive-minded music critics to interpret expressionist music as the next step in the historical development of absolute music. These critics strategically—and controversially—portrayed Schoenberg's "atonal" polyphony as a legitimate ...
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