Liquid zinc embrittlement of a high-manganese-content TWIP steel

The cracking resistance of a twinning induced plasticity (TWIP) steel with high-manganese content has been studied in relation to the liquid metal embrittlement phenomenon. This phenomenon was investigated by hot tensile tests carried out on electrogalvanised specimens using a Gleeble® simulator at temperatures ranging from 600°C to 1000°C. The results show that this steel can be embrittled by liquid zinc within a limited range of temperature depending on strain rate.     

Mentoring: Processes and Perceptions of Sport and Exercise Psychology Graduate Students

The purpose of this study was to determine the extent to which the Association for Applied Sport Psychology (AASP) conference programs address cultural diversity. A content analysis was conducted by analyzing 5214 AASP conference program abstracts from 1986 to 2007. Only 10.5% of all abstracts included discussion of a cultural diversity issue and 31.9% included a diverse sample. Of those abstracts that addressed cultural diversity issues, the majority addressed gender, with almost no attention to race and ethnicity, nationality, sexual orientation, social class, disability, or older adults. These results highlight the continuing neglect, but compelling need to address cultural diversity in sport and exercise psychology, and specifically within AASP programming.     

Exploring the Relations between Cattell–Horn–Carroll (CHC) Cognitive Abilities and Mathematics Achievement

As standardized measures of cognitive abilities and academic achievement continue to evolve, so do the relations between the constructs represented in these measures. A large, nationally representative sample of school‐aged children and youth between 6 and 19 years of age (N = 4,194) was used to systematically evaluate the relations between cognitive abilities and components of academic achievement in mathematics. The cognitive abilities of interest were those identified from the Cattell–Horn–Carroll model of intelligence. Specific areas of mathematics achievement included math calculation skills and math problem solving. Results suggest that fluid reasoning (Gf), comprehension‐knowledge (Gc), and processing speed (Gs) have the strongest and most consistent relations with mathematics achievement throughout the school years.Copyright © 2017 John Wiley & Sons, Ltd.     

A dual-networks architecture of top-down control

Complex systems ensure resilience through multiple controllers acting at rapid and slower timescales. The need for efficient information flow through complex systems encourages small-world network structures. On the basis of these principles, a group of regions associated with top-down control was examined. Functional magnetic resonance imaging showed that each region had a specific combination of control signals; resting-state functional connectivity grouped the regions into distinct 'fronto-parietal' and 'cingulo-opercular' components. The fronto-parietal component seems to initiate and adjust control; the cingulo-opercular component provides stable 'set-maintenance' over entire task epochs. Graph analysis showed dense local connections within components and weaker 'long-range' connections between components, suggesting a small-world architecture. The control systems of the brain seem to embody the principles of complex systems, encouraging resilient performance.     

Choosing remedies after accidents: Counterfactual thoughts and the focus on fixing “human error”

The present research is motivated by an interest in why organizational decision makers so often respond to accidents with remedy plans that focus narrowly on correcting human error rather than more environment-focused plans or more encompassing plans. We investigated the role of counterfactual thinking in the decision-making tendency toward human-focused plans. Our experiments indicated that even in a domain where human-focused remedies were not otherwise appealing, many participants decided on human-focused remedies after they had generated an “if only” conjecture about the accident. This reflects that human actions are often selected as the focus of “if only” conjectures and, importantly, that this focus “locks in” and carries through to subsequent remedy decisions. Our hypothesis that remedy plans are produced from “if only” thoughts was supported over several alternative interpretations. We discuss implications for research on the relation between counterfactual thinking and adaptive learning.     

Looking for Cancer: Expertise Related Differences in Searching and Decision Making

We examined how the ability to detect lung nodules in chest x‐ray inspection is reflected in experience‐related differences in visual search and decision making, and whether the eye‐tracking metric time‐to‐first hit showed systematic decreases across expertise levels are examined. In the study decision making improved with expertise, however, time‐to‐first fixate a nodule showed only a non‐significant trend to decrease with expertise. Surprisingly, naïve and expert observers allocated less visual attention at nodules compared with first and third year radiography students. This similarity in visual attention at nodules but not in decision making was explained by the fact that naïve observers were more likely to fixate and make errors on distracter regions. Time‐to‐first hit has been linked to expert performance in mammography, but in this study was not sufficiently sensitive to demonstrate clear linear improvements across expertise groups. This brings into question the use of this metric as an indirect measure of rapid initial holistic processing. Copyright © 2012 John Wiley & Sons, Ltd.     

An Evidence‐Based Model for Understanding the Mental Health Experiences of Transgender Australians

A growing body of empirical research has documented the mental health experiences of Australian transgender people. This research indicates three key factors that appear to play a role in determining outcomes for adult transgender Australians: (a) discrimination, (b) access to hormones and/or surgery, (c) community connectedness. Two theoretical frameworks clarify why these factors exist and how they can lead to either negative or positive mental health outcomes. The first is cisgenderism, which describes the ideology that delegitimises people's own understanding of their genders and bodies. Although anyone can experience cisgenderism, it is a particularly common experience for transgender people. The second is decompensation, which describes the processes through which the cumulative effects of stressors may lead to poor mental health. Drawing on both previous empirical findings and these two theoretical frameworks, this article proposes, and provides initial testing of, a model for understanding the mental health of transgender adults in Australia. The article concludes by suggesting the need for changes regarding how decisions are made about mental health service provision for transgender people, how mental health professionals understand the lives of transgender people, and how legislation can better ensure the full inclusion of transgender people in Australia.