Electrophoretic deposition of thermites onto micro-engineered electrodes prepared by direct-ink writing.

This work combines electrophoretic deposition (EPD) with direct-ink writing (DIW) to prepare thin films of Al/CuO thermites onto patterned two- and three-dimensional silver electrodes. DIW was used to write the electrodes using a silver nanoparticle ink, and EPD was performed in a subsequent step to deposit the thermite onto the conductive electrodes. Unlike conventional lithographic techniques, DIW is a low-cost and versatile alternative to print fine-featured electrodes, and adds the benefit of printing self-supported three-dimensional structures. EPD provides a method for depositing the composite thermite only onto the conductive electrodes, and with controlled thicknesses, which provides fine spatial and mass control, respectively. EPD has previously been shown to produce well-mixed thermite composites which can pack to reasonably high densities without the need for any postprocessing. Homogeneous mixing is particularly important in reactive composities, where good mixing can enhance the reaction kinetics by decreasing the transport distance between the components. Several two- and three-dimensional designs were investigated to highlight the versatility of using DIW and EPD together. In addition to energetic applications, we anticipate that this combination of techniques will have a variety of other applications, which would benefit from the controlled placement of a thin film of one material onto a conductive architecture of a second material.

Understanding the relationship between religiosity and marriage: an investigation of the immediate and longitudinal effects of religiosity on newlywed couples.

The association between religiosity and marital outcome has been repeatedly demonstrated, but a complete understanding of this relationship is hindered by limitations of theory and method. The purpose of the current study was to test 3 explanatory models by assessing 2 samples of newlywed couples. Findings indicated that religiosity was associated with attitudes toward divorce, commitment, and help seeking cross-sectionally. Longitudinal effects, however, were most consistent with a moderating model, wherein religiosity had a positive impact on husbands' and wives' marital satisfaction for couples with less neurotic husbands and a negative impact for couples with more neurotic husbands. Overall, the impact of religiosity was weak over the first 4 years of marriage. Theoretical propositions are offered to guide future research in delineating the types of marriages that may be most affected by religiosity.

Are premarital prevention programs reaching couples at risk for marital dysfunction?

In 2 studies, newlyweds reported whether they had participated in premarital counseling and provided data on known risk factors for marital dysfunction. Couples who participated in premarital programs were not at greater risk for marital difficulties, and in some cases participating husbands were at lower risk for marital difficulties compared with husbands who did not participate. Longitudinal data indicated that couples who participated in premarital programs did not have better marital outcomes than couples who did not participate. The present article also addresses the need to develop procedures that will increase at-risk couples' participation in premarital programs and to improve the effectiveness of these programs in community settings.

The role of negative affectivity in the association between attributions and marital satisfaction.

Structural equation modeling with latent variables was used to test whether negative affectivity, or the cross-situational tendency to experience and express negative thoughts and feelings, correlates with spouses' attributions for relationship events and accounts for the association between attributions and satisfaction. Eighty married couples completed measures of marital satisfaction, attributions, and negative affectivity. Spouses high in negative affectivity tended to make maladaptive attributions, but spouses' attributions were unrelated to the level of negative affectivity reported by the partner. Attributions and marital satisfaction remained associated among husbands and wives after controlling for negative affectivity. These findings clarify the link between attributions and marital satisfaction and raise the possibility that negative affectivity contributes to the attributions that spouses make for negative events in marriage.