This study examined predictors of self-presentation concerns in sport. Two hundred and twenty eight competitive athletes (171 men and 117 women) completed measures of selfpresentation concerns, social physique anxiety (SPA), self-handicapping (SH), athletic identity (AI), and perfectionism. SPA and SH were consistent predictors across all but one self-presentation dimension in females. Gender d...

Sandia National Laboratories is responsible for assuring that our nuclear deterrent remains credible and that the one in a billion disaster of unintended nuclear detonation never occurs. Letting mistake-generated defects into the stockpile would undermine its mission. The current era of shrinking stockpiles is shrinking Sandia’s opportunities to discover and correct mistakes and fine-tune proce...

In this paper, we argue that human-factors studies are critical in building a wide range of dependable systems. In particular, only with a deep understanding of the causes, types, and likelihoods of human mistakes can we build systems that prevent, hide, or at least tolerate human mistakes by design. We propose several research directions for studying how humans impact availability in the conte...

In the case of the Armenian Genocide, action and inaction and the weighing of costs and benefits led to the massive destruction of Armenians during WWI. The Turkish government’s racial discrimination against the Armenians drove them to politically and violently eradicate the Armenians within the Ottoman Empire. The benefit for the Turks from having separatist policies was establishing a pure Tu...

Worldwide concern over Zika virus (panel) and its temporal and geographical association with clusters of birth and neurological conditions escalated this week, with WHO declaring a Public Health Emergency of International Concern. No doubt not wanting to repeat mistakes made in the west African Ebola outbreak, WHO was quick to raise the alarm. Briefing the WHO Executive Board on Jan 28, WHO Dir...

This paper examines two mistakes regarding David Lewis’ Principal Principle that have appeared in the recent literature. These particular mistakes are worth looking at for several reasons: the thoughts that lead to these mistakes are natural ones, the principles that result from these mistakes are untenable, and these mistakes have led to significant misconceptions regarding the role of admissi...