When Infants Lose Exclusive Maternal Attention: Is It Jealousy?

To characterize infant reactions to jealousy evocation, 94 6‐month‐olds and their mothers were videotaped in an episode where the mothers directed positive attention toward a lifelike doll, and in 2 contrasting interactions: face‐to‐face play and a still‐face perturbation. Cross‐context comparisons of affects and behaviors revealed that jealousy evocation responses were distinguished by diminished joy and heightened anger and intensity of negative emotionality, comparable to levels displayed during the still‐face episode; heightened sadness, with durations exceeding those displayed during still‐face exposure; and an approach response consisting of interest, looks at mother, and diminished distancing, which was more pronounced than that demonstrated during play. Infants' heightened anger and sadness during jealousy evocation correlated with heightened maternal sensitivity and dyadic vocal turn‐taking, respectively, during play; and infants' diminished joy and interest during jealousy evocation were associated with heightened maternal withdrawal and intrusiveness, respectively, during play. Both fear and mother‐directed gaze were greater in girls. The discussion argues for interpreting the infant's mixed and agitated reaction to jealousy evocation as evidence of jealousy.     

Efficient Estimation in Marginal Partially Linear Models for Longitudinal/Clustered Data Using Splines

Abstract.  We consider marginal semiparametric partially linear models for longitudinal/clustered data and propose an estimation procedure based on a spline approximation of the non-parametric part of the model and an extension of the parametric marginal generalized estimating equations (GEE). Our estimates of both parametric part and non-parametric part of the model have properties parallel to those of parametric GEE, that is, the estimates are efficient if the covariance structure is correctly specified and they are still consistent and asymptotically normal even if the covariance structure is misspecified. By showing that our estimate achieves the semiparametric information bound, we actually establish the efficiency of estimating the parametric part of the model in a stronger sense than what is typically considered for GEE. The semiparametric efficiency of our estimate is obtained by assuming only conditional moment restrictions instead of the strict multivariate Gaussian error assumption.     

Genetic algorithms for numerical optimization

Genetic algorithms (GAs) are stochastic adaptive algorithms whose search method is based on simulation of natural genetic inheritance and Darwinian striving for survival. They can be used to find approximate solutions to numerical optimization problems in cases where finding the exact optimum is prohibitively expensive, or where no algorithm is known. However, such applications can encounter problems that sometimes delay, if not prevent, finding the optimal solutions with desired precision. In this paper we describe applications of GAs to numerical optimization, present three novel ways to handle such problems, and give some experimental results.     

Deviance,Rule-Breaking and Male Dominance in Conversation

Previous research on dyadic interaction indicates that cross-sex conversations (male-female) are characterized by more frequent interruptions than same-sex conversations. More specifically, males consistently tend to interrupt their female co-conversationalists. Survey data from three student samples suggest that normative definitions reflected in perceptions of interruption are inconsistent with the empirical distribution of rule-breaking observed by conversational researchers. These results provide some strategic insights into the problematic distinction between deviance and rule-breaking that has been central to labeling theory.     

Specialised Supported Education for Australians with Psychotic Disorders

Australia has a network of Federally funded disability employment and vocational rehabilitation services, including a proportion of outlets that specialise in providing services for persons with psychiatric disabilities. However, neither Federal nor State Governments currently provide or fund disability‐specific education assistance to persons with psychiatric disabilities. To begin considering whether Specialised Supported Education is indicated for persons with psychotic disorders, we examined data collected in a national ‘Survey of Disability, Ageing and Carers Australia, 1998’. International studies of the effectiveness of overseas Supported Education programs were also examined to identify the forms of assistance most likely to warrant consideration in Australia. U.S.A. evidence indicates that Specialised Supported Education is emerging as an effective career development option for persons with psychotic disorders. An example of an innovative Specialised Supported Education program is provided to illustrate how this type of program can be implemented in Australia.     

Venture philanthropy and social entrepreneurship in community redevelopment

This article provides a case study of Tom Cousins, a social entrepreneur who used his own venture philanthropic investments and leveraged additional resources through extensive public‐private partnerships for the sole intent of redeveloping an area of disinvestment and poverty. In the process, Cousins also provided the visionary, strategic, and operational leadership often associated with the actions and responsibilities of a social entrepreneur. The limited research to date has investigated social entrepreneurship and venture philanthropy as separate and often unrelated concepts. In this study, we analyze the sustained and intensive involvement by Cousins and his foundations and the continued leadership provided in the creation of public‐private partnerships focused on the redevelopment of the East Lake area in Atlanta.     

A manpower planning model for organizational effectiveness

In this article the author argues that micro-manpower planning is finally beginning to emerge as a process for helping individuals and firms to play an active role in developing integrated approaches and facilitating interrelationships within an organization. Additionally, that it is in a unique position where it can relate many of the foundations formulated by many segments of organizational theory and mathematical modeling into a cohesive and practical application format for practicing administrators.Naturally, the developed Markovian model is a stable process and assumes stable probabilities of movement with the system. Additionally, it assumes that movements between the states are dependent solely upon the previous state of location which is usually false in a business organization where movement is also dependent upon length of time in state, previous states occupied, and personal variables. But, the Markovian process can be viewed as a relevant modeling technique even with these constraints.These factors are combined to examine and discuss the organization's effectiveness and its bargaining position in terms of manpower resources. Additionally, policy decisions which would be made based upon the interrelationships of the personnel and industrial relations departments and the firm's technical core are discussed.