Social demographic change and autism

Parental age at child’s birth—which has increased for U.S. children in the 1992–2000 birth cohorts—is strongly associated with an increased risk of autism. By turning a social demographic lens on the historical patterning of concordance among twin pairs, we identify a central mechanism for this association: de novo mutations, which are deletions, insertions, and duplications of DNA in the germ cells that are not present in the parents ’ DNA. Along the way, we show that a demographic eye on the rising prevalence of autism leads to three major discoveries. First, the estimated heritability of autism has been dramatically overstated. Second, heritability estimates can change over remarkably short periods of time because of increases in germ cell mutations. Third, social demographic change can yield genetic changes that, at the population level, combine to contribute to the increased prevalence of autism.     

When identities collide: masculinity,disability and race

This study is part of a larger project that examined the impact of violently acquired spinal cord injuries (VASCI) on identity among racial and ethnic minority men living in a major American metropolis. Like other individuals who sustain a disabling injury, individuals with a VASCI often struggle with the consequences of the injury vis‐à‐vis redefining their identities and their role in society. For the men in this study the negative association between disability and dependency affected the integration of the injury into their sense of self. The injury and resulting disability violated social understandings of what it means to be a man in their environments. The men noted the injury’s impact on their sense of safety, sexual encounters, body image and choice of intimate partners. Their social context shaped what it meant to be a man, played a role in their injuries and increased the challenges inherent in a life‐changing event.     

Characteristics of sports-based youth development programs

The term "sports-based youth development programs" is coined and defined in the context of the community youth development framework. Sports-based youth development programs are out-of-school-time programs that use a particular sport to facilitate learning and life skill development in youth. Community youth development programs use a community youth development approach to create opportunities for youth to connect to others, develop skills, and use those skills to contribute to their communities. This, in turn, increases their ability to succeed. The authors describe how sports-based youth development programs can be contexts that promote positive youth development. The features of positive developmental settings for youth from the work of the National Research Council and the Institute of Medicine, as well as the features identified by other researchers, are presented in the context of sports-based youth development programs. For example, a sports program that provides appropriate structure has delineated clear rules, expectations, and responsibilities for youth, parents, coaches, officials, and other organizers.     

Counting casualties: A framework for respectful,useful records

Counting casualties in conflict zones faces both practical and ethical concerns. Drawing on procedures from risk analysis, we propose a general approach. It represents each death by standard features, having either essential value, for capturing the social and cultural meaning of individual casualties, or instrumental value, for relating patterns of casualties to possible causes and effects. We illustrate the approach with the choices involved in attempts to record casualties in Iraq and the Israel-Palestine conflict, and with natural disasters, as exemplified by Hurricane Katrina. We advocate institutionalizing the approach, so that recording casualties increases understanding, rather than suspicion.

Learning from Our Mistakes: An Autopsy of an Unsuccessful University–Community Collaboration

A challenge facing social work education is how to enhance its connection to local communities. To this end, university and community collaborations have grown in popularity to address community needs and to augment student learning. The research literature indicates that there are many factors—from designs to guidelines—that drive successful collaborations. Building on the lessons from that research, this article provides a case study about a service-learning collaboration between a community organization and a masters-level social work course in the United States that was ultimately unsuccessful. Through stakeholder interviews and reflections, the authors provide several suggestions to improve future collaborations. These suggestions include the following. First, increase accountability for students and agency staff. Second, conduct an orientation session at the agency that includes necessary agency staff. Third, be mindful of cultural differences between organizations. Finally, restrict the number of service-learning options for students.     

Weak Monotonicity Characterizes Deterministic Dominant‐Strategy Implementation

We characterize dominant‐strategy incentive compatibility with multidimensional types. A deterministic social choice function is dominant‐strategy incentive compatible if and only if it is weakly monotone (W‐Mon). The W‐Mon requirement is the following: If changing one agent's type (while keeping the types of other agents fixed) changes the outcome under the social choice function, then the resulting difference in utilities of the new and original outcomes evaluated at the new type of this agent must be no less than this difference in utilities evaluated at the original type of this agent.     

Next steps in the expanded learning discourse

This concluding chapter examines the emerging themes, challenges, opportunities, and next steps for ELTO.     

Development of the Distinction Among the "Desirable", Morality, and Personal Preference

Israeli children of grades 1, 4, and 7 were asked, with respect to nine types of behavior, whether such behavior is bad, whether a child should be brought up to behave otherwise (and why), whether a child should be required to behave otherwise, and whether such behavior should be punished. Analysis of their responses and the reasons they provided supports the hypothesized distinction between three categories of behaviors or reasons for action—morality, “the desirable” and personal preferences—in terms of two dimensions: desirability and obligatoriness. Specifically, moral norms were perceived as both desirable and strictly obligatory, and were justified in terms of inherent goodness/badness and the welfare of others. Behaviors in the category of “the desirable” were perceived as desirable but not obligatory, and were justified in terms of self-development and long-term utility. Behaviors in the category of personal preferences were perceived as non-obligatory and neither desirable nor undesirable, and were justified in terms of personal choice. This distinction was less sharp among first graders, who exhibited some tendency to view desirables and preferences, as well as moral behavior, as obligatory. In light of these findings, it is suggested that the young child's “intuitive morality” relates only to the dimension of desirability and not to that of obligatoriness, which seems to develop somewhat later.     

Learning with excitement: bridging school and after-school worlds and project-based learning

A bridging typology captures a range of ways that after-school programs connect children's diverse worlds and support project-based learning.