Effects of Si addition on the microstructure evolution of Al–Cu–Mg alloys in the α + S + T phase field

The precipitation behaviour and age-hardening response of Al–1.5Cu–4.0Mg (wt.%) alloys microalloyed with Si have been investigated by means of hardness measurement, TEM and HRTEM. Compared to the ternary alloy, the quaternary alloys exhibit a higher hardness. It is found that the underaged microstructure in the Al–1.5Cu–4.0?Mg alloy contains some fine precipitates, which are identified as the T phase by FFT spectra. The peak-aged microstructures of the ternary alloy is dominated by the T phase, while the peak-aged microstructures of the Si-containing alloys are dominated by the S phase. The volume fraction of the S phase is found to increase as more Si is added.     

Deformation twins induced by multi-mode deformation in nanocrystalline copper

A multi-mode deformation model is used in a molecular dynamics simulation of nanocrystalline copper. Abundant deformation twin lamellae are developed by shearing the following compression to the elastic limit. Deformation twins (DTs) nucleate through two different mechanisms facilitated by Shockley partial slips. Interactions between DTs and Shockley partials are observed in this simulation.     

Multiple identities and career development of GLB immigrants

There has been increasing interest in the study of career development and career counselling for the gay men, lesbian women and bisexual (GLB) people given the clear link between sexual orientation and career development in the past two decades. Yet, there is still a relatively dearth of literature in this area, especially, much is unknown about the career identity and other related identity development experiences of GLB immigrant adults whose acculturation process intersects with cultural identity, race and ethnicity and sexual identity as they rebuild their careers in the host country. This article aims to explore the connections between multiple cultural identities and their affect on career development. It builds upon the current literature, uses some career development theories, and proposes career development and career counselling interventions for the target group.     

Law,Humanity, and Reason: The Chinese Debate,the Habermasian Approach,and a Kantian Outcome

This paper explores the subject-matter of the relationship between law and humanity, filling a significant lacuna in philosophy of law in the West today. Doing so, the paper starts with recasting the traditional Chinese conflict—in particular, the conflict between legalism and Confucianism—over law in a new light of the contemporary call for stopping crimes against humanity. It then explores Habermas’ insight into and illusion of law. Finally, it examines the internal relationship between law and humanity, contending that law must always treat humanity as a purpose, not as a tool to other ends, functioning to build a community of humanity; while a distinction exists between justice and benevolence, law must not be inhumane.     

Uncertainty regulation across cultures: An exploration of individual differences in Chinese and Canadian children in the classroom

This research investigates whether individual differences in uncertainty orientation affect classroom behavior for Chinese and Canadian children. Uncertainty orientation distinguishes between uncertainty-oriented individuals, or those who attempt to attain clarity by finding out for themselves, and certainty-oriented individuals, or those who attempt to maintain clarity by adhering to predictable environments. Although uncertainty orientation is considered an informational variable, uncertainty-oriented children in both countries had higher self-ratings, ratings by other students and ratings by their teachers than certainty-oriented children on a variety of social and achievement behaviours. These results suggest that encouraging a discovery learning style of uncertainty regulation in “UO-centric” cultures may be beneficial.     

Effect of Personal Injustice on Attributions for the Success of Others

The current research tested competing predictions on whether the experience of personal injustice would increase or decrease internal attributions of others' success. Compared with the control condition, Study 1 found that individuals gave less credit to another person for his promotion after they recalled their own unfair experience. Study 2 revealed that personal injustice led weak just-world believers, but not strong just-world believers, to perceive a lottery winner to be less deserving. Study 3 showed that these effects were mediated by resentment. The findings demonstrate that thinking about one's own injustice can lead to a more cynical outlook on others' positive outcomes.     

Temporal Sequences Quantify the Contributions of Individual Fixations in Complex Perceptual Matching Tasks

Perceptual tasks such as object matching, mammogram interpretation, mental rotation, and satellite imagery change detection often require the assignment of correspondences to fuse information across views. We apply techniques developed for machine translation to the gaze data recorded from a complex perceptual matching task modeled after fingerprint examinations. The gaze data provide temporal sequences that the machine translation algorithm uses to estimate the subjects' assumptions of corresponding regions. Our results show that experts and novices have similar surface behavior, such as the number of fixations made or the duration of fixations. However, the approach applied to data from experts is able to identify more corresponding areas between two prints. The fixations that are associated with clusters that map with high probability to corresponding locations on the other print are likely to have greater utility in a visual matching task. These techniques address a fundamental problem in eye tracking research with perceptual matching tasks: Given that the eyes always point somewhere, which fixations are the most informative and therefore are likely to be relevant for the comparison task?     

Enhanced perceptual priming for neutral stimuli in a traumatic context: A pathway to intrusive memories?

Clinical observations suggest that re-experiencing symptoms are triggered by stimuli that are perceptually similar to those present shortly before the trauma or its worst moments. Two experiments investigated the possible role of perceptual priming in this phenomenon. Volunteers (N = 28, N = 62) watched a series of “traumatic” and neutral picture stories, and completed blurred object identification (priming) and recognition memory tasks. Neutral objects that immediately preceded the “traumatic” stories were more strongly primed, but not better recognised, than objects from neutral stories. Enhanced priming predicted subsequent re-experiencing symptoms. The results support the role of perceptual priming in re-experiencing.     

When the voluntary mind meets the irresistible event: Stimulus–response correspondence effects on task selection during voluntary task switching

In the present study, we investigated how task selection is biased by inherent stimulus characteristics in the voluntary task-switching paradigm. We used digits as the task stimuli, since they may automatically induce spatially horizontal representations of numbers. Specifically, we examined whether an irrelevant spatial representation of a number coincides with its associated response codes and whether such a stimulus–response (S–R) correspondence effect biases task selection for a digit. Participants were randomly assigned to one of two different action code layout conditions: Two numerical tasks were arranged as inner/outer in the horizontal layout condition or as upper/down in the vertical layout condition. Participants in the horizontal layout condition were more likely to choose a task when the task’s action code and the digit’s spatial representation corresponded, as compared with when they did not. On the other hand, no selection bias was observed in the vertical layout condition, since there was no overlapping spatial representation between the stimulus and response. The present study extends previous findings by considering the influence of the stimulus-driven effect on task selection with regard to the S–R correspondence effect.