The Longitudinal Interplay of Maternal Warmth and Adolescents' Self‐Disclosure in Predicting Maternal Knowledge

This study examined the longitudinal associations among maternal warmth, adolescents' self‐disclosure, and maternal knowledge during the transition to adolescence. Three years of self‐report data were collected from 131 married mothers and their adolescents. Results from longitudinal analysis using adolescent reports indicated that greater maternal warmth in sixth grade predicted higher levels of adolescents' self‐disclosure in seventh grade, which in turn led to higher levels of maternal knowledge in eighth grade. Thus, adolescents' self‐disclosure served as an indirect link between higher maternal warmth and greater knowledge over time. An alternative model with prior self‐disclosure predicting subsequent maternal warmth and knowledge was not supported. Overall, this study demonstrated a time‐ordered process by which maternal warmth and adolescents' self‐disclosure predict maternal knowledge. Understanding such processes that affect parental knowledge may be beneficial for future prevention and intervention efforts during the transition to adolescence.     

Ethnic stratification in Northwest China: Occupational differences between Han Chinese and national minorities in Xinjiang, 1982–1990

The debate on market reforms and social stratification in China has paid very little attention to China’s ethnic minorities. We explored rising occupational stratification by ethnicity in the Xinjiang Uygur Autonomous Region. Analyses of census data from 1982 and 1990 pointed to educational disadvantages faced by ethnic minorities as the most plausible explanation for the change. Multivariate analysis revealed a significant increase in the effect of education on high-status occupational attainment but no change in the effect of ethnicity. Net of education, ethnic differences in high-status occupational attainment were negligible. In contrast, large ethnic differences in manufacturing and agricultural occupations persisted after education and geography were statistically controlled.     

Der Team Power Profiler – ein Analyseverfahren für virtuelle internationale Teams

Globalization and contemporary technology have made international virtual teamwork a routine aspect of daily business. The requirements are very complex; the results often disappointing. We have identified nine critical success factors that are crucial to successful international cooperation. Our Internet survey tool, the Team Power Profiler, analyzes both the strengths and weaknesses of international virtual teams, and in doing so offers a framework for effective coaching.     

Agent‐Based Modeling to Simulate Contamination Events and Evaluate Threat Management Strategies in Water Distribution Systems

In the event of contamination of a water distribution system, decisions must be made to mitigate the impact of the contamination and to protect public health. Making threat management decisions while a contaminant spreads through the network is a dynamic and interactive process. Response actions taken by the utility managers and water consumption choices made by the consumers will affect the hydraulics, and thus the spread of the contaminant plume, in the network. A modeling framework that allows the simulation of a contamination event under the effects of actions taken by utility managers and consumers will be a useful tool for the analysis of alternative threat mitigation and management strategies. This article presents a multiagent modeling framework that combines agent‐based, mechanistic, and dynamic methods. Agents select actions based on a set of rules that represent an individual's autonomy, goal‐based desires, and reaction to the environment and the actions of other agents. Consumer behaviors including ingestion, mobility, reduction of water demands, and word‐of‐mouth communication are simulated. Management strategies are evaluated, including opening hydrants to flush the contaminant and broadcasts. As actions taken by consumer agents and utility operators affect demands and flows in the system, the mechanistic model is updated. Management strategies are evaluated based on the exposure of the population to the contaminant. The framework is designed to consider the typical issues involved in water distribution threat management and provides valuable analysis of threat containment strategies for water distribution system contamination events.     

Promotions and the pattern of grocery shopping time

The histograms of interpurchase times for frequently purchased packaged goods have consistently shown pronounced seven-day cycles. Evidence supports that the weekly spike phenomenon is the result of consumers' regular shopping trip schedules. We explore the implications of this peculiar regularity on the issue of consumer purchase timing acceleration. Data for five product categories are examined. Promotions are found to have little effect in accelerating purchase timing. In contrast, conventional interpurchase time models are shown to overstate the effect of promotions.     

Building good knowledge or blaming bad parents? Examining the construction of parents and parenting in a corpus of parent focussed cochlear implant research articles

Parents of deaf children with a cochlear implant (CI) report feeling pressure to adhere to a very prescribed conceptualisation of ‘good parenting’, and in some cases report feeling judged or blamed, for example, if the child's progress post-CI is slower than expected. Previous investigations of the discourses of parenting science suggest that, while parent blame is rarely expressed explicitly, that normative, moral assumptions about how ‘good parents of a disabled child’ should feel, think and act are embedded within prevalent concepts and terminology. A disproportionate focus on evaluating individual parents' personal characteristics at the expense of more external, socially located issues has also been noted. Existing critiques, together with the author's lived experience provide the impetus for this study; in which corpus linguistics methods have been used to document the types of parents and parenting attributes constructed in a 420,982 corpus of research articles. The results indicate the prevalence of many highly evaluative parenting noun-collocates within the field; successful adaptation, a positive appraisal of the situation, realistic expectations, rational decisions, high involvement and full-time use of the CI are conflated with good parenting, whilst parents who present in alternate ways are construed as problematic. Implications for future research are discussed.     

Going Places: Effects of Early U.S. Compulsory Schooling Laws on Internal Migration

Population Research and Policy Review - Both the industrialization thesis and institutional theories of education hypothesize that early educational expansion increased internal migration. We take...