This thesis resulted from an examination of Lake Worth plankton in comparison to plankton found in similar bodies of water throughout the United States.

Previous research has demonstrated the effect of family cohesion on adolescent outcomes. However, little attention has been given to the effect of adolescence on the family environment. Family systems theory suggests that as adolescents develop, their development will impact the family environment. The current study examined the impact of adolescent development on family cohesion. Specifically, 4 years of data from the Mobile Youth Survey, a study of adolescents living in low-income neighborhoods in Mobile, Alabama, were analyzed. Survey participants were between the ages 13 and 16 and 97 % of them were Black American. Adolescent development was measured using three dimensions—identity style, self-worth, and hopelessness. Family cohesion was measured along two dimensions: maternal and paternal warmth. Adolescent gender was used as a covariate. The longitudinal models revealed that parents responded differently to identity styles and to levels of self-worth depending upon the adolescent’s gender. Our study provides evidence that family cohesion, a key predictor of adolescent behaviors, changes in response to adolescent development.

Previous literature has shown that childhood trauma and adverse experiences are related to a wide range of negative outcomes that can span into adulthood (e.g., low self-worth, poor physical health, and increased likelihood of co-morbid psychological symptoms). However, a gap remains in the existing literature regarding early interventions that may target complicated outcomes (i.e., self-esteem and self-worth) while the survivor is still in childhood. This paper attempts to elucidate the impact that traumatic childhood experiences may have on self-worth, and the importance of implementing targeted intervention before the child reaches adulthood. Therefore, an extensive review was first conducted to gain further insight in regards to how specific variables, namely locus of control and health-related quality of life, may predict childhood development of self-worth. The present study then explored the influence of each factor on a child and adolescent community sample that experienced various types of trauma 61 children and adolescents who were survivors of varying types of trauma were recruited from a local mental health clinic (M=11.89; SD=2.49; 31 males, 30 females). Measures pertaining to locus of control, health-related quality of life, and self- worth were administered at their therapeutic baseline by a randomly assigned therapist. A measure of resiliency was also administered as a secondary exploratory analysis. Results highlighted pediatric quality of life and trauma type as meaningful predictors of self-worth outcomes. Additionally, resiliency as a construct with a significant correlational relationship with self-worth. All findings were interpreted for purposes of intervention, and treatment proposals were delineated.

No description available.

Product placements are gaining more importance in corporate marketing communication budgets and marketers need to understand the effectiveness of these placements to justify investments into them. Three studies were conducted to study the effectiveness of product placements in movies. Essay one studied the economic worth of product placements on the long term profitability of the firm through an event study. Analysis of 467 placements of movies released during 1968-2007 shows that product placements generate a mean cumulative abnormal return of 0.21% during the (-1, +2) event window. Hierarchical linear modeling of the abnormal returns in cross-sectional analysis indicates that placement duration positively impacts the abnormal returns. Placement blatancy was found to negatively affect placements' worth. We did not find any support for the effect of critical reviews or presence of a star director on the worth of product placements. Crime and comedy genres were found to positively affect abnormal returns of placements. Additional MANCOVA analysis, using different event windows as the dependent variable, suggests that a period of two weeks might be required after a movie's release for the information about placement execution factors to be incorporated by the market in its evaluation of the firm. In essay two we study the effectiveness of product placement from a memory perspective by means of a longitudinal study, using a student subject panel. Subjects were exposed to a full- length movie and recognition was tracked at weekly intervals for a period of four weeks. Results of a dynamic panel analysis using generalized estimating equations indicate that audience recognition for a movie placement significantly diminishes one to two weeks after exposure to the movie. In addition, recognition of placements is enhanced by audiences' attitude toward product placements. Recognition is further affected by placement execution factors. Specifically, we found that audio placements and placements of longer duration positively affect placement recognition. Plot connectivity and character association did not significantly impact recognition over time. Essay three examines the impact of brand-character association on consumer attitude toward the placed brand. A 2x2 within subjects experiment, using a full-length movie as a stimulus, was conducted on a panel of student subjects to assess the interaction effect of character-brand valence on consumer attitude. Results support a significant interaction between character and brand valence. Analyses also indicate that congruency between character and brand valence enhances affective measures toward the placed brand, supporting the congruency theory and Meaning Transfer Model. Additionally, we found that brand familiarity fully mediates the character-valence interaction. Limitations and Implications of the studies were also discussed.

This study explores the contradiction between the ways the institutional field of sustainable development has for decades been defined conceptually by a temporal sense of equity, or the aim of meeting the needs of both present and future generations, and the glaring lack of definition for the concept. Through discursive analysis, this study finds sustainable development discourse to precariously conceptualize equity according to multiple, incompatible institutional logics, and to conceptualize time in highly ambiguous ways. Further, the ambiguity of time appears to have corrosive effects on the meaningfulness of equity as a concept, and to provide a mechanism by which institutional actors within the field of sustainable development can evade accountability. These dynamics suggest power and preferential outcomes will be retained by the people of the present, and inherently harm generations to come. In this way, this study questions whether sustainable development defined according to temporal equity is truly “the future we want,” or rather just the future we want to want, but are unwilling to bring about.

Unhealthy sexual behavior continues to increase among the college student population despite education regarding its risks and consequences. Counselors are continually being faced with consumers reeling from such consequences. Because prior research has indicated statistically significant relationships between attachment style and sexual behavior, self-worth and sexual behavior, and peer norms and sexual behavior, this study examined the explanatory and predictive value of each of these variables when analyzed simultaneously. Specifically, the age at first intercourse, number of sexual intercourse partners, number of oral sex partners, frequency of cheating behaviors, and number of one-night stands were assessed across 855 students attending a medium sized university located in the southeastern part of the United States Packets were administered to each participating student containing an informed consent letter, a questionnaire regarding peer group (Ratliff-Crain, Donald, & Dalton, 1999), a demographics questionnaire, a questionnaire regarding sexual behavior, drawn from the National Health and Social Life Survey (NHSLS) (Laumann, Gagnon, Michael, & Michaels, 2000), The Relationship Questionnaire (Bartholomew & Horowitz, 1991), and The Contingencies of Self-Worth Scale (Crocker, Luhtanen, Cooper, & Bouvrette, 2003). Resulting data were analyzed using Multiple Regression and Logistic Regression analyses. Findings show that while self-worth domains of academics and approval are not significantly related to sexual behavior, it would appear that the sexually risky individual is likely to perceive his/her peers as sexually risky, to lack self-worth based on virtue, to instead have self-worth based on competition, and to endorse a dismissing attachment style. Further, demographic factors were also included in the analyses including participant age, race, gender, church attendance, religious affiliation, relationship status, and parents? marital status. Of these variables used as controls, race seemed to have the strongest influence on sexual behavior, with participants who were black showing the riskiest sexual behaviors.

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This thesis presents methods to place landing sites for the Urban Air Mobility (UAM) concept. The analysis shows an integrated approach to establish UAM landing site requirements, place landing sites based on predicted demand, and estimate the costs associated with UAM landing sites. This thesis also makes estimates of fares associated with UAM operations. The methods presented are applied to three large urban centers in the United States. The analysis assumes an all-electric, advanced multi-rotor aircraft with autonomous navigational and Vertical Takeoff and Landing (VTOL) capabilities to estimate UAM landing site requirements. The thesis presents the land area requirements of UAM landing sites using Federal Aviation Administration heliport design criteria considering ground-taxi configurations. The analysis performed employs a UAM vehicle with an equivalent Rotor Diameter (RD) of 43 feet. In this thesis, UAM demand is estimated using a mode choice model developed in a companion study (UAM Scenario Analysis). The methodology to locate UAM landing sites includes splitting and consolidation of UAM landing sites considering the Zillow Transaction and Assessment Dataset (ZTRAX) to introduce land-use size and cost constraints. The sites are split using a K-Means clustering method and are consolidated using a simple center of mass approach where the demand of each landing site is analogous to mass. The results presented in this thesis apply to 75 and 200 landing sites in each region and assume passenger Cost-Per-Mile (CPM) of $1.20 and $1.80, respectively. This thesis presents a comparative study on how the availability of land affects the splitting, consolidation, and relocation of UAM landing sites for each region, the number of landing sites, and the cost per passenger-mile. / Master of Science / This thesis aims at the landing sites for the Urban Air Mobility (UAM) concept for commuting passengers in Northern California (17 counties), Southern California (9 counties), and Dallas-Fort Worth (12 counties) region. The aircraft for this service is designed to be an all-electric advanced multi-rotor aircraft with autonomous navigational and Vertical Takeoff and Landing (VTOL) capabilities. The commuting trips considered is focused on passengers traveling to work from home and back. This thesis presents the land area requirements of these landing sites, which are calculated from the Federal Aviation Administration's (FAA) Advisory Circular 150/5390-2C using ground-taxi configuration for a typical representative aircraft of an equivalent rotor diameter (RD) of 43 feet. The landing sites are then split into smaller sites and consolidated into larger sites. This thesis also presents a list of plots of land located within the 0.5 statute-mile boundaries of the landing sites for relocation. This entire analysis is based on the availability of land from the Zillow Transaction and Assessment Dataset (ZTRAX). The results presented in this thesis are for 75 and 200 landing sites set in the study area for a passenger Cost-Per-Mile (CPM) of $1.2 and $1.8, respectively. The results show how the availability of land changes for different CPM for a set of landing sites and affects the splitting, consolidation, and relocation of landing sites for each region. In the end, the thesis presents conclusions and recommendations unique to each region.

The purpose of the study was to determine the relationship between the girls' physical education programs in the junior and senior high schools in the Fort Worth Public Schools and to determine to what extent these programs insure the complete development of the girl, physically, mentally and socially in the two school levels.