Effects of stretch shortening cycle exercise fatigue on stress fracture injury risk during landing

The purpose of this study was to examine changes in landing performance during fatigue that could result in increased stress fracture injury risk. Five participants performed nonfatigued and fatigued drop landings (0.60 m), while ground reaction force (GRF), electromyographic (EMG) activity, and kinematics were recorded. Fatigue was defined as a 5-20% reduction in vertical jumping performance. Single-subject analyses revealed that all participants were affected (p < or = .05) by fatigue. Post hoc comparisons revealed a group effect (p < or = .05) for selected variables. Participants landed with (a) less joint flexion at contact and used a greater range of motion, (b) greater GRF peaks and loading rates, and (c) less EMG activity. These changes were consistent with greater risk of stress fracture.     

A social network perspective on the management of product development programs

Creativity is essential to the performance of product development programs (PDPs). Most PDPs are designed around teams that jointly work together according to the product decomposition into components, the design and development procedure, and the methods of the final integration. Since the creative product development task requires the teams to combine and integrate input from multiple other teams, the team's structure of interaction is an important determinant of their creativity. In research and practice, however, little is known about the social networks of the teams and their creativity within PDPs. In this study we investigate different structural aspects of social networks of such teams and their creativity within two multinational PDPs. The main results of our investigation imply that many direct network contacts around a weekly intensity stimulate the creativity of teams of PDPs, whereas very open networks with a high information variety minimizes the team's creativity.     

Theorizing progress: Women in science,engineering, and technology in higher education

A conceptual framework of positions on women in science, engineering, and technology (SET) was developed, showing a chronological progression of the main approaches to women's underrepresentation in SET during the past 20 years. Numerous initiatives have been advocated to address women's underrepresentation in SET in higher education. This article arose out of one such initiative, Winning Women, which was intended to help higher education in Scotland move toward good practice in this field. Two members of the project team describe their key findings and experiences. They illustrate how the underrepresentation of women in SET continues to be both progressive and persistent (using an SET parity index). The conceptual framework was conceived and developed from a metaanalysis of feminist theories of the gendered politics of science and technology. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 637–661, 1999     

Cost-Consequences Analysis: A Case Study

The means and resources used by an organization are best understood within the context of results and payoffs. Organizations, both public and private, are means to societal ends. In order to be accountable for their value to society, organizations must demonstrate that what they produce and/or deliver is of positive value for the time, money, and resources invested. If an organization is to spend time, money, and resources on interventions, social initiatives, organizational re-alignment, or a quality management/continuous improvement process, leaders and decision makers frequently want to know if the value of their results is worth the investments. The Cost-Consequences Analysis offers a coarse-grain estimate of return-on-in-vestment when there is not the necessity nor time and/or resources available for a complete determination of all of the variables that actually go into a return-on-investment analysis.