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Suicide affects hundreds of thousands of people around the world each year. Despite many coordinated efforts to address this problem, in multiple domains, these numbers have risen over the last decade. The Interpersonal Theory of Suicide is a relatively recent theory that has received considerable attention and investigation. Perceived burdensomeness is one of the constructs from this theory. The belief that you are a burden on others is a robust predictor of suicidal ideation and, to a less understood extent, suicidal behavior. To my knowledge, few studies have looked at the factors that lead to perceived burdensomeness. This study was conducted to begin to address this gap in the literature. Attributional style, hopelessness, socially-prescribed perfectionism, and self-esteem were identified as potential vulnerability factors for perceived burdensomeness. One hundred twenty individuals were surveyed about these constructs and perceived burdensomeness. Participants were also asked to read three vignettes based on interviews with individuals with lived experiences related to suicide attempts. Following each vignette, participants were asked to report the level of perceived burdensomeness that they anticipated that they would feel in that situation as an additional analogue measure of perceived burdensomeness. It was found that attributional style, socially-prescribed perfectionism, and self-esteem predicted current levels of perceived burdensomeness. Self-esteem was the only variable that predicted analogue levels of perceived burdensomeness, beyond current levels of depression. This exploratory study has the potential to contribute to the literature by guiding and informing future research related to better understanding or reducing perceived burdensomeness.

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With the rapid development of artificial intelligence, service robots play an increasingly important role in frontline service across various industries. However, many questions surrounding service robots as a novel service option are still less studied, and thus, remain uncertain to marketers. Therefore, this dissertation investigated and addressed some of these questions, by assessing the potential advantages of service robots, not only as compared to human employees, but also among service robots’ different humanlike vocal features, including voice types, accents, and speaking styles. Specifically, to address the research gaps identified through an in-depth literature review conducted in Chapter 2, a series of empirical studies were conducted and presented in Chapter 3 (Essay One) and Chapter 4 (Essay Two). Chapter 3 begins with Study 1a, an investigation into the potential advantages of service robots as compared to human employees in a hotel check-in setting. The findings suggest that service robots outperform human employees in customers’ enjoyment of the interactions. Study 1b replicated the earlier study in a fast-food restaurant setting, where service robots were found to outperform human employees in customers’ word-of-mouth (WOM) intentions as well. In Study 2, an investigation specifically into a service robot’s vocal design was conducted, by comparing three potential voice types (male, female, or robotic) in a movie theater setting. The findings reveal that a human male voice is the most ideal across various customer outcomes, highlighting the importance for marketers to determine the optimal voice type for a service robot. Chapter 4 reports further investigations of service robots’ vocal design, specifically regarding their accents and speaking styles. In Study 3, four subordinate studies were conducted in a hotel check-in setting. The findings suggest that when a service robot’s accent is congruent with its local region, it enhances customers’ perceived enjoyment of the interactions and various customer outcomes. In Study 4, a further investigation was conducted into a service robot’s speaking style, to assess its potential influence under a service failure and recovery context. The findings suggest that a service robot’s use of a colloquial speaking style attenuates customers’ perceived competence of the service robot and related customer outcomes, which further highlight the importance of a service robot’s appropriate language use, especially during a service recovery. A general discussion regarding Study 1 to Study 4 was provided in Chapter 5, offering valuable implications to both scholars and marketers, and suggesting promising avenues for future research.

Continuation marks are a programming language feature which generalize stack inspection. Despite its usefulness, this feature has not been adopted by languages which rely on stack inspection, e.g., for dynamic security checks. One reason for this neglect may be that continuation marks do not yet enjoy a transformation to the plain λ-calculus which would allow higher-order languages to provide continuation marks at little cost. We present a CPS-like transformation from the call-by-value λ-calculus augmented with continuation marks to the pure call-by-value λ-calculus. We discuss how this transformation simplifies the construction of compilers which treat continuation marks correctly. We document an iterative, feedback-based approach using Redex. We accompany the transformation with a meaning-preservation theorem.

Objective: To examine whether caregiver burden, parenting style, and sibling relationships in families raising a child with a disability (CWD) predict cooperative and externalizing behaviors in typically-developing sibling (TDS). Methods: This correlational study included 189 families raising both a CWD and a TDS. Mothers and fathers completed self-report questionnaires on caregiver burden, sibling relationships, parenting style, and TDS cooperative and externalizing behaviors. Results: Authoritative parenting was positively associated with cooperative behaviors, whereas authoritarian parenting was positively associated with externalizing behaviors. Hierarchical regression revealed caregiver burden was a significant predictor of cooperative and externalizing behaviors; however, when parenting style was added as a predictor, it was also significant. However, when sibling relationships were added as a predictor, they were the only consistently significant predictor for both cooperative and externalizing TDS behaviors; caregiver burden was no longer significant and parenting style was only significant in predicting externalizing behaviors. Conclusion: Positive sibling relationships may help negate the effects of caregiver burden and poor parenting practices on sibling outcomes. Therefore, interventions improving parenting and sibling relationships are critical in families raising a CWD.

Previous stepfamily research suggested that the parenting styles of biological parents and stepparents are related to children's behavioral adjustment. Scant research also provided evidence of the significance of combined parenting styles on emerging adults' behavioral adjustment. In conjunction with this literature, the scope of the current study served four purposes. First, the current study examined the degree to which parenting styles predict emerging adults' behavioral adjustment. Second, the degree to which biological parent and stepparent parenting styles predict the emerging adult-biological parent and stepparent relationships was examined. Third, the degree to which the emerging adult-biological parent and stepparent relationships predict adjustment was examined. Fourth, emerging adult-biological parent and stepparent relationships were examined as mediators in the relationship between parenting styles and emerging adults' adjustment. As part of this study, 100 emerging adults who were enrolled in a psychology course at the University of Central Florida were given a series of questionnaires regarding the variables of interest (i.e., parenting style, stepparenting style, biological parent-emerging adult relationships, stepparent-emerging adult relationships, and emerging adults' adjustment). Results of this study provided confirmation of previously held notions that both parenting styles and relationships are predictors of emerging adults' adjustment. Additionally, this study contributes new information concerning the significance of combined parenting styles and the use of parent-emerging adult relationships as a mediator between an authoritative parenting style and emerging adults' adjustment.

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Analysis of elite performances is important to elucidate the characteristics of effective weightlifting technique contributing to the highest level of achievement. The general technique of the weightlifting movements is well established. However, it is also apparent that weightlifting technique can differ based on athlete characteristics. Thus, existing technical models may not accurately reflect current technique of top performers or be applied generically to athletes of different skill, size, sex, or ability. Therefore, the purpose of this descriptive study was to update the scientific knowledge of snatch technique of top international weightlifters. This study used video analysis to determine barbell trajectory and kinematics of 319 successful snatch attempts from two major international competitions. Relative frequencies of barbell trajectory types differed based on competition, sex, category, and ranking. No statistical differences were observed among the top-three performers for either sex for most kinematic variables, and there were no overall discernible patterns of effect size differences for individual or clusters of kinematic variables. The results of this study indicate that weightlifting success can be achieved with a variety of technique profiles.