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This study explored the extent to which co-curricular involvement, holding formal leadership roles, and participating in leadership programs contributed to female and male college students’ capacity for socially responsible leadership. It focused specifically on the individual values of the Social Change Model of Leadership Development. An adapted version of Astin’s Input-Environment-Outcome Model was the conceptual framework and the Social Change Model individual values including consciousness of self, congruence, and commitment served as the theoretical framework. Data were collected from a random sample of 3,410 undergraduates at one institution through the Multi-Institutional Study of Leadership. Participants completed a web-based survey including the Socially Responsible Leadership Scale-Revised2. Data were analyzed using hierarchical multiple regression to identify the extent to which the environmental variables contributed to outcomes. Involvement in student organizations was the most significant environmental variable and community involvement emerged as significant for women. A discussion of findings and implications is presented.

Leader-member exchange (LMX) generally refers to the leadership process centered on the interactions between leaders and direct reports. The basic premise of high quality leader-member exchange relationships holds that direct reports gain tremendous benefits through these partnerships. LMX is perhaps the most commonly researched theory of leadership. However, few studies have specifically examined the role of dyad members’ sex as a predictor of quality LMX. Several studies investigating the role of dyad members’ sex and quality LMX examined the effect of sex in an aggregated variable, demographic similarity, which often included other demographic characteristics such as age, education level and race, yielding mixed results. This article’s purpose is to (a) review the evolution of leader-member exchange theory, (b) examine literature regarding potential effects of sex of dyad members on quality leader-member exchanges, and (c) discuss implications and future research concerning the role of dyad members’ sex and leader-member exchanges.

The leadership identity development (LID) grounded theory (Komives, Owen, Longerbeam, Mainella, & Osteen, 2005) and related LID model (Komives, Longerbeam, Owen, Mainella, & Osteen, 2006) present a framework for understanding how individual college students develop the social identity of being collaborative, relational leaders interdependently engaging in leadership as a group process (Komives, Lucas, & McMahon, 1998, 2007). Challenges to applying and measuring this stage based developmental theory are discussed and recommendations are included.

Most support surfaces in comfort applications and sporting equipment are made from pressure-relieving foam such as viscoelastic polyurethane. However, for some users, foam is not the best material as it acts as a thermal insulator and it may not offer adequate postural support. The additive manufacturing of such surfaces and equipment may alleviate these issues, but material and design investigation is needed to optimize the printing parameters for use in pressure relief applications. This study aims to assess the ability of an additive manufactured flexible polymer to perform similarly to a viscoelastic foam for use in comfort applications.

Three-dimensional (3D) printed samples of thermoplastic polyurethane (TPU) are tested in uniaxial compression with four different infill patterns and varying infill percentage. The behaviours of the samples are compared to a viscoelastic polyurethane foam used in various comfort applications.

Results indicate that TPU experiences an increase in strength with an increasing infill percentage. Findings from the study suggest that infill pattern impacts the compressive response of 3D printed material, with two-dimensional patterns inducing an elasto-plastic buckling of the cell walls in TPU depending on infill percentage. Such buckling may not be a beneficial property for comfort applications. Based on the results, the authors suggest printing from TPU with a low-density 3D infill, such as 5% gyroid.

Several common infill patterns are characterised in compression in this work, suggesting the importance of infill choices when 3D printing end-use products and design for manufacturing.

Violence is elevated in older adolescents and adults with schizophrenia; however, little is known about younger children. This report focuses on rates of violence in younger children with schizophrenic-spectrum illnesses. A retrospective review of structured diagnostic interviews from a case series of 81 children, ages 4-15 years of age, with childhood onset of schizophrenic-spectrum illness is reported. Seventy-two percent of children had a history of violent behavior, including 25 children (31%) with a history of severe violence. Of those with a history of violence, 60% had a least one episode of violence that did not appear to be in response to an external stimulus (internally driven violence). There was no significant impact of age or gender. For many children, these internally driven violent episodes were rare and unpredictable, but severe. Similar to what is found in adolescents and adults, violence is common in children with schizophrenic-spectrum illnesses. General violence prevention strategies combined with early identification and treatment of childhood psychotic illnesses may decrease the morbidity associated with childhood psychotic violence.