This thesis focuses on liquid redox electrolytes in dye-sensitized solar cells (DSCs). A liquid redox electrolyte, as one of the key constituents in DSCs, typically consists of a redox mediator, additives and a solvent. This thesis work concerns all these three aspects of liquid electrolytes, aiming through fundamental insights to enhance the photovoltaic performances of liquid DSCs. Initial attention has been paid to the iodine concentration effects in ionic liquid (IL)-based electrolytes. It has been revealed that the higher iodine concentration required in IL-based electrolytes can be attributed to both triiodide mobility associated with the high viscosity of the IL, and chemical availability of triiodide. The concept of incompletely solvated ionic liquids (ISILs) has been introduced as a new type of electrolyte solvent for DSCs. It has been found that the photovoltaic performance of ISIL-based electrolytes can even rival that of organic solvent-based electrolytes. And most strikingly, ISIL-based electrolytes provide highly stable DSC devices under light-soaking conditions, as a result of the substantially lower vapor pressure of the ISIL system. A significant synergistic effect has been observed when both guanidinium thiocyanate and N-methylbenzimidazole are employed together in an IL-based electrolyte, exhibiting an optimal overall conversion efficiency. Tetrathiafulvalene (TTF) has been investigated as an organic iodine-free redox couple in electrolytes for DSCs. An unexpected worse performance has been observed for the TTF system, albeit it possesses a particularly attractive positive redox potential. An organic, iodine-free thiolate/disulfide system has also been adopted as a redox couple in electrolytes for organic DSCs. An impressive efficiency of 6.0% has successfully been achieved by using this thiolate/disulfide redox couple in combination with a poly (3, 4-ethylenedioxythiophene) (PEDOT) counter electrode material under full sunlight illumination (AM 1.5G, 100 mW/cm2). Such high efficiency can even rival that of its counterpart DSC using a state-of-the-art iodine-based electrolyte in the systems studied.The cation effects of lithium, sodium and guanidinium ions in liquid electrolytes for DSCs have been scrutinized. The selection of the type of cations has been found to exert quite different impacts on the conduction band edge (CB) of the TiO2 and also on the electron recombination kinetics, therefore resulting in different photovoltaic behavior. / QC 20120124

Although theorists, researchers, and therapists alike emphasize emotional intimacy as an important aspect of a couple’s relationship, empirical data to understand the underlying processes behind this concept are lacking. The purpose of this study is to examine Reis and Shaver’s interpersonal process model of intimacy in a community sample of couples and to contribute to the current understanding of constructs that may moderate the process of intimacy. Reis and Shaver’s model suggests that vulnerable self-disclosure by one partner, coupled with empathic responding by the other partner, results in greater subjective emotional intimacy. Previous studies have examined this interpersonal process model in a sample of community couples in committed romantic relationships. The present study aims to contribute to the extant literature by testing emotion dysregulation as a potential moderator in Reis and Shaver’s interpersonal process model of intimacy. Multilevel modeling was used to analyze data from 108 community couples. Couples completed measures and were asked to participate in videotaped interactions in which each partner discussed a time that someone other than the partner hurt their feelings (low threat condition) and a time the partner hurt their feelings (high threat condition). For each interaction, partners were assigned to a designated role (speaker or listener). Results lend support to Reis and Shaver’s interpersonal process model of intimacy suggesting that both vulnerable self-disclosure and empathic responding by the partner are key components to one’s subjective experience of emotional intimacy. Results also lend support to the idea that emotion dysregulation moderates the relation between self-disclosure, empathic responding, and resulting post-interaction intimacy; however, when measuring how emotion dysregulation affects post-interaction intimacy within this study, results varied based on whose intimacy was being measured (speaker or listener) and based on the condition (low or high threat.) Clinical implications as well as directions for future research were discussed.

Body image dissatisfaction and eating disorders are more prevalent in today's society than ever. As a result, several prevention programs targeting the common eating disorder risk factors have been developed. The purpose of the current study was to investigate a new kind of prevention program that is based on the dual pathway model of eating disorders within the context of an individual?s romantic relationship. The current prevention program reduced eating disorder risk factors but failed to affect relationship satisfaction. Effect sizes were small to medium in magnitude for most of the targeted risk factors. The inclusion of men and women alike in eating disorder prevention programs appear to be a successful way of addressing the thin ideal and its detrimental effects. Limitations and future directions are discussed.

The transition to parenthood brings a host of changes to new parents; two key areas of change are decreases in relationship functioning and a worsening of women's eating, weight, and shape (EWS) concerns. Past research has suggested that a connection may exist between women's EWS concerns and relationship functioning during this transition. This study explored the impact of women's EWS concerns on both partners' relationship functioning in a sample of 74 couples (148 individuals) having their first baby. The study was part of a larger project exploring interventions during the transition to parenthood; thus, all couples had at least one risk factor for future relationship problems. Participants completed questionnaires approximately seven months into pregnancy and at one and three months postpartum. Results revealed that relationship functioning and women's EWS concerns worsened from pregnancy to three months postpartum, which is consistent with previous literature. Changes in women's EWS concerns from before and during pregnancy to three months postpartum were not generally related to changes in either partner's relationship functioning during the same period. However, the EWS concerns that predicted poorer relationship outcomes, including women's drive for thinness and bulimia symptoms, suggest the possible role of third factors such as negative affect or neuroticism. Also, increases in women's Body Mass Index from pre-pregnancy to three months postpartum predicted increases in relationship functioning, indicating the possibility of a larger construct such as general acceptance of the post-birth process, both in terms of weight changes and relationship changes. Thus, preventive efforts could include an emphasis on helping partners to accept the changes they will experience during this transition. Finally, the significant relations between women's EWS concerns and relationship functioning were often mediated by men's reported frequency of sexual activity, suggesting the importance of sex as a mediator. Although findings were limited, the results should be interpreted in light of previous research and the current study's limitations. Overall, this study indicates the need for future research exploring the relations between women's EWS concerns and the couple relationship during the transition to parenthood.

This study examined issues of measurement equivalence in a cross-national study using the Marital Satisfaction Inventory-Revised (MSI-R). Overall findings supported cross-cultural similarities across the Spain, Germany, Korea, and the U.S. standardization samples. The Spanish, German, and Korean translations of the MSI-R demonstrated moderate to strong internal consistency, inter-scale correlations, and discriminative validity overall. Confirmatory factor analyses revealed configural and metric invariance across the original measure and the German, Spanish, and Korean translations. Mean profile comparisons between the current German, Spanish, and Korean samples and the original standardization sample revealed significant differences on several scales. Test characteristic similarities between the U.S. and the Spanish, German, and Korean clinical samples suggest the clinical utility of the MSI-R for identifying couples for secondary prevention or intervention protocols, and treatment planning in Spain, Germany, and Korea. Implications for cross-national clinical and research applications of the MSI-R are discussed.

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Thesis (Ph. D.)--University of Texas at Austin, 1999. / Vita. Includes bibliographical references (leaves 478-480). Available also in a digital version from Dissertation Abstracts.

Texte remanié de: Th. doc.--Droit--Strasbourg 3, 2002. / Bibliogr. p. 419-438. Webliogr. p. 438-439. Index.

Thesis (M.S.)--University of Wisconsin--Stout, 2001. / Title from PDF title page (viewed Jan. 9, 2005). Includes bibliographical references (p. 52-54).

Thesis (M.A.)--Kutztown University of Pennsylvania, 1999. / Source: Masters Abstracts International, Volume: 45-06, page: 2775. Typescript. Abstract precedes thesis as preliminary leaf vi. Includes bibliographical references (leaves 27-29).