Pyrotechnic reaction residue particle analysis

Pyrotechnic reaction residue particle (PRRP) production, sampling and analysis are all very similar to that for primer gunshot residue. In both cases, the preferred method of analysis uses scanning electron microscopy to locate suspect particles and then uses energy dispersive x-ray spectroscopy to characterize the particle's constituent chemical elements. There are relatively few times when standard micro-analytical chemistry performed on pyrotechnic residues may not provide sufficient information for forensic investigators. However, on those occasions, PRRP analysis provides a greatly improved ability to discriminate between materials of pyrotechnic origin and other unrelated substances also present. The greater specificity of PRRP analysis is the result of its analyzing a large number of individual micron-sized particles, rather than producing only a single integrated result such as produced using standard micro-analytical chemistry. For example, PRRP analyses are used to demonstrate its ability to successfully (1) discriminate between pyrotechnic residues and unrelated background contamination, (2) identify that two different pyrotechnic compositions had previously been exploded within the same device, and (3) establish the chronology of an incident involving two separate and closely occurring explosions.     

Dating,Parent–Adolescent Conflict,and Behavioral Autonomy

Although dating is thought to contribute to adolescent development, little is known about how it affects autonomy development and relationships with parents. The contributions of dating status, grade, gender, and family structure to the frequency and intensity of normative conflict and to behavioral autonomy were studied. Tenth- and twelfth-grade public high school students (N = 859) completed measures of dating history, frequency, and intensity of parent–adolescent conflict, and of behavioral autonomy. Current daters (n = 325) had more frequent conflict and reported higher levels of behavioral autonomy than nondaters (n = 170). Additionally, males and twelfth graders reported more autonomy than females and tenth graders, respectively. Sophomores who were dating reported the most frequent conflict with parents, females who were dating reported the most intense conflict with parents, and seniors who were dating reported the highest levels of autonomy. Short-term daters had more frequent and more intense conflicts with parents relative to long-term daters and nondaters. These data highlight the utility of focusing on developmental tasks in addition to age when assessing conflict patterns and processes.     

Coping with Maternal Depressed Affect and Depression: Adolescent Children of Depressed and Well Mothers

This study examined the strategies adolescents use to cope with their mothers' depressive symptoms and/or episodes. An open-ended semistructured interview and a closed-ended coping scale, the Maternal Affectivity Coping Scale derived from the Self-Report Coping Scale (D. L. Causey and E. F. Dubow [1992] Development of a Self-Report Measure for Elementary School Children, Journal of Clinical Child Psychology, Vol. 21, pp. 47–59), was administered to pairs of adolescent siblings (N = 179) from families (N = 94) in which the mother was either depressed or well. With a few important exceptions, the results reveal similar coping styles in the offspring of depressed and well mothers. One difference was that mothers' current psychological distress was weakly related to young adolescents' coping patterns (e.g., problem solving, externalizing). Also, adolescents' coping styles (e.g., provide support) were related to the type of depressive symptoms the mother exhibited (e.g., anger, irritability). Second, greater sibling differences were found for emotion-focused coping strategies (e.g., distancing) in children of depressed mothers than in children of well mothers. Third, the results suggest that the sex of the adolescent may be important in attempting to understand individual differences in coping. Females were more likely than males to engage in interpersonally focused coping strategies (e.g., provide support to their mother, seek support from others). The feelings of responsibility for contributing to their mother's depression that were more evident in females than males may offer some insight into gender differences and may also have implications for placing females at higher risk for internalizing disorders.     

Financial Socialization of First-year College Students: The Roles of Parents,Work, and Education

This cross-sectional study tests a conceptual financial socialization process model, specifying four-levels that connect anticipatory socialization during adolescence to young adults’ current financial learning, to their financial attitudes, and to their financial behavior. A total of 2,098 first-year college students (61.9% females) participated in the survey, representing a diverse ethnic group (32.6% minority participation: Hispanic 14.9%, Asian/Asian American 9%, Black 3.4%, Native American 1.8% and other 3.5%). Structural equation modeling indicated that parents, work, and high school financial education during adolescence predicted young adults’ current financial learning, attitude and behavior, with the role played by parents substantially greater than the role played by work experience and high school financial education combined. Data also supported the proposed hierarchical financial socialization four-level model, indicating that early financial socialization is related to financial learning, which in turn is related to financial attitudes and subsequently to financial behavior. The study presents a discussion of how the theories of consumer socialization and planned behavior were combined effectively to depict the financial development of young adults. Several practical implications are also provided for parents, educators and students.     

Discussion of 'Four Contradictions Constraining China's Foreign Policy Behavior'

Chinese foreign policy behavior is constrained by different sets of contradictions, but at the same time these contradictions serve to inspire and focus Chinese foreign policy, both in negative and positive ways. As China transitions to a developed country that is fully integrated into regional and global economic, political and security regimes, these contradictions may become less salient, however. With the growth of China's comprehensive national power, the Chinese will come to view their country less as a poor nation and more as a great power and thus this dual-identity syndrome should diminish in importance as a factor constraining China's foreign policy behavior over time. The contradictory impetus behind Chinese foreign policy that derives from the desire to benefit from pursuit of 'open-door' policies and the compulsion to protect state sovereignty will similarly likely become less important as China's power grows, but only if there is mutually acceptable settlement to the Taiwan problem and Beijing's confidence in its ability to secure its territorial integrity is enhanced. A stronger, more confident China will also likely become more actively involved in regional and global issues on a pragmatic, rather than principled basis. Finally, while bilateral ties will remain important to Beijing, its participation in multilateral fora will no doubt increase, including in the security sphere, as it becomes more experienced and self-assured in multilateral interaction. Ultimately, bilateral and multilateralism may take on the role of parallel tracks in Chinese diplomacy with little tension between them.     

Advice about Life Plans from Mothers,Fathers, and Siblings in Always-Married and Divorced Families during Late Adolescence

The frequency of advice about life plans that older adolescents in always-married and divorced families received from mothers, fathers, and siblings was examined. Also, a pattern-analytic approach that grouped adolescents according to the amount of advice about life plans received from each parent and a sibling was employed to explore the connections between patterns of advice and adolescents' future occupational, educational, and family plans. The sample included 544 and 95 older adolescents in always-married and divorced families, respectively. Findings suggested that while adolescents relied on mothers for advice in both always-married and divorced families, adolescents in divorced families depended on fathers and siblings for advice less often than did adolescents in always-married families. Although there was some evidence of family context differences in the connections between patterns of advice and life plans, overall, adolescents in both family contexts who received more advice from a parent and, in some cases, a sibling compared to other adolescents were the most positive about their future life plans.