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61.
Diana Farkas 《Philosophical Magazine Letters》2013,93(4):229-237
The mechanisms of failure of symmetrical tilt boundaries have been investigated using an atomistic technique. The fracture process advances in steps that are related to the structural unit of the symmetrical tilt grain boundary. These boundaries are shown to fail through a combined mechanism involving dislocation emission in certain regions of the structural unit, followed by microcleavage, and again dislocation emission. The overall toughness of the boundaries is given by the combination of the toughness of these two processes. 相似文献
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Diana Leyva Elaine Reese Wendy Grolnick Carrie Price 《Journal of cognition and development》2013,14(4):363-389
Maternal elaboration and autonomy support during reminiscing facilitate middle-class children's autobiographical narrative skills. In this study, low-income Hispanic, White, and Black mothers' elaboration and autonomy support in reminiscing were examined in relation to children's joint and independent autobiographical narratives and engagement. Sixty preschool children discussed three past events with their mothers and one past event with a researcher. Maternal elaboration was related to children's joint and independent autobiographical narratives, and autonomy support was related to children's joint and independent engagement. Hispanic mothers used a less elaborative style during conversations about misbehavior, and Hispanic children tended to have less advanced independent autobiographical narratives. Maternal elaboration and autonomy support appear to play different roles in children's autobiographical narratives. Further, reminiscing may serve different purposes in different racial/ethnic groups. 相似文献
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Sanjeev Sockalingam Diana Blank Abdulqader Al Jarad Fahad Alosaimi Gideon Hirschfield Susan E. Abbey 《Journal of clinical psychology in medical settings》2013,20(2):227-233
Patients infected with chronic hepatitis C virus (HCV) commonly suffer from the triad of depression, pain and fatigue. This symptom triad in HCV is likely influenced by additional psychological and interpersonal factors, although the relationship is not clearly understood. This retrospective study aimed to characterize the relationship between attachment style and depressive and physical symptoms in the HCV-infected population. Over 18 months, 99 consecutively referred HCV infected patients were assessed with the Hamilton Depression Rating Scale (HDRS), Fatigue Severity Scale, Patient Health Questionnaire-15 for physical symptoms and the Relationship Questionnaire for attachment style. An ANOVA was used to identify differences between attachment styles and Pearson correlations were used to evaluate the association between depression, fatigue and physical symptoms. Approximately 15 % of patients in the sample had a fearful attachment style. Patients with fearful attachment style had significantly higher depressive symptoms compared to a secure attachment style (p = .025). No differences in physical and fatigue symptoms were observed between attachment styles. Further, HDRS scores were significantly associated with fatigue scores (p < .001) and physical symptoms (p < .001), reinforcing the relationship between these symptom domains in HCV-infected patients. Although depressive, physical and fatigue symptoms are inter-related in HCV-infected patients, our study results suggest that only depressive symptoms were influenced by the extremes of attachment style. Screening of relationship styles may identify at-risk HCV-infected individuals for depression who may have difficulty engaging in care and managing physical symptoms. 相似文献
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“In this article we sketch out the landscape for this Special Issue on anticipating and embedding the societal challenge of nanotechnologies. Tools that actors may choose to employ for these processes are articulated, and further explored through the introduction of the seven articles which comprise this Issue. Taken together, these articles create a cogent narrative on the societal challenges posed by nanotechnologies. They are drawn together by three distinct themes, each of which is briefly considered within this context of this Introductory article”. 相似文献
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The present study considered situational and dispositional factors underlying behavioral opposition characteristic of a “not‐in‐my‐back‐yard” (NIMBY) response to a change having adverse personal consequences. Students considered the proposition of comprehensive exams required for graduation taking effect in the near or distant future (high and low vested interest, respectively). Although both groups had similarly negative attitudes toward the idea, the high vested interest group perceived greater personal consequence and expressed greater intention to oppose the plan. From a situational‐dispositional interactionist perspective, it was the impact of the situation (perceived stake), rather than personality traits presumed to underlie a NIMBY response, that proved to be the primary determinant of oppositional behavior. 相似文献
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HOW INVESTMENT IN GENDER IDEALS AFFECTS WELL-BEING: THE ROLE OF EXTERNAL CONTINGENCIES OF SELF-WORTH
The present study examined the relationship between investment in gender ideals and well-being and the role of external contingencies of self-worth in a longitudinal survey of 677 college freshmen. We propose a model of how investment in gender ideals affects external contingencies and the consequences for self-esteem, depression, and symptoms of disordered eating. Specifically, we find that the negative relationship between investment in gender ideals and well-being is mediated through externally contingent self-worth. The model showed a good fit for the overall sample. Comparative model testing revealed a good fit for men and women as well as White Americans, Asian Americans, and African Americans. 相似文献
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