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301.
ABSTRACTIn this paper, we consider a mathematical model for the growing crystals in supersaturated or supercooled systems. An integro-differential equation of the Fokker-Planck type is analytically solved using the saddle point method for the Laplace integral. The solution describes an intermediate stage of the phase transition process with allowance for the power law of the growth rate of spherical particles and the nucleation mechanisms known as the Meirs and Weber-Volmer-Frenkel-Zeldovich kinetics. A dynamical dependencies for the supersaturation/supercooling and the distribution function of crystals by their size are obtained. The novelty of the theory is the use of a power law for the growth rate of crystals, which leads to new analytical solutions of the problem. 相似文献
302.
Ursula M. Sansom-Daly Richard A. Bryant Richard J. Cohn Claire E. Wakefield 《Anxiety, stress, and coping》2014,27(5):587-600
Individuals with health anxiety experience catastrophic fears relating to future illness. However, little research has explored cognitive processes involved in how health anxious individuals picture the future. Ruminative thinking has been shown to impede the ability to recall specific autobiographical memories, which in turn is related to maladaptive, categoric future thinking processes. This study examined the impact of rumination on memory and future thinking among 60 undergraduate participants with varying health anxiety (35% clinical-level health anxiety). Participants were randomized to experiential/ruminative self-focus conditions, then completed an Autobiographical Memory Test and Future Imaginings Task. Responses were coded for specificity and the presence of illness concerns. Rumination led to more specific illness-concerned memories overall, yet at the same time led to more categoric illness-related future imaginings. Rumination and health anxiety together best predicted overgeneral illness-related future imaginings. Highly specific illness-related memories may be maintained due to their personal salience. However, more overgeneral illness-related future imaginings may reflect cognitive avoidance in response to the threat of future illness. This divergent pattern of results between memory and future imaginings may exacerbate health anxiety, and may also serve to maintain maladaptive responses among individuals with realistic medical concerns, such as individuals living with chronic illness. 相似文献
303.
This article investigated the core of religious education (RE) by examining Finnish student teachers’ pedagogical aims in the context of Lutheran RE. The data consisted of essays (N=82) analysed in a deductive manner using the main concepts of the didactic triangle together with the aims of the Finnish National Core Curriculum. The student teachers identified familiarising oneself with one’s own and other religions in addition to growing ethically and understanding the religious dimension of life as the core goals of RE. By attaining these goals, pupils may also achieve the higher order aims of RE and cross-curricular goals of the curriculum. A teacher’s pedagogical and moral competence as well as expertise in subject matter was emphasised, and the pedagogical relation with students was also seen as important. A deeper understanding of pupils and the importance of a didactic relation in teaching were identified as pedagogical aims that need to be pursued further. 相似文献
304.
The act of projecting oneself into meaningful future events may significantly contribute to a person's sense of self and identity. Yet if the role of memories, in particular self-defining memories (SDMs), in grounding the self is now well established, the identity function of anticipated future events has received comparatively little attention. This article introduces the construct of self-defining future projection (SDFP) to address this issue. Two studies show that people can readily identify significant future events that they frequently think about and that convey core information about who they are as individuals. Furthermore, a person's particular style of constructing SDMs is similarly manifested in SDFPs, suggesting that both types of events can be used to ground the self. Notably, people who display a stronger tendency to extract meaning from their past experiences also reflect more about the potential implications of imagined future events. The results further demonstrate that SDMs and SDFPs both give rise to a strong sense of personal continuity over time and are meaningfully related to self-esteem. Together these findings lend support to the idea that a person's sense of self and identity is in part nourished by the anticipation of significant future events. 相似文献
305.
Karina Wahl Andrea Ertle Antje Bohne Bartosz Zurowski Andreas Kordon 《Anxiety, stress, and coping》2013,26(2):217-225
Abstract There is tremendous interest in understanding the cognitive processes behind obsessive–compulsive disorder (OCD). Whereas previous research on cognitive OCD models has focused on the dysfunctional content of obsessional thinking, processes and styles of thinking have not yet been investigated. The present study investigated the relationship between a ruminative response style and obsessive–compulsive (OC) symptomatology in two non-clinical samples. In Sample 1, 261 students completed the Ruminative Response Scale, the Padua-Inventory, Revised, and the Beck Depression Inventory. Tendency to ruminate was positively correlated with the severity of OC symptoms and particularly with obsessive rumination, even after controlling for depression. Results were replicated in Sample 2 (211 students). Data indicate that a ruminative response style and obsessive rumination share common processual features. Understanding the interaction between rumination and obsessional thinking might help to further elucidate the role of cognitive vulnerability factors in OCD and to expand cognitive and metacognitive models of OCD. 相似文献
306.
307.
冠状动脉CT血管成像应用中的思考 总被引:1,自引:1,他引:0
高慧 《医学与哲学(人文社会医学版)》2011,(8):70-71
随着科学技术的发展及医疗水平的提高,冠状动脉CT血管成像(CTCA)已成为诊断冠心病的金标准,该项技术微创、安全、简单、快捷,深受患者青睐。本文讨论该项技术应用中所贯穿的哲学思考与应有的人文关怀。 相似文献
308.
A long stream of research in attribution theory suggests that groups are biased toward attributing their success to factors that are internal to their group. However, the existing research has confounded two types of attributions that are both internal to the group, but theoretically distinct: (1) attributions that differentiate between the contributions made by each individual group member and (2) attributions that focus on the group as a whole. This dichotomy is important because, drawing on theories of social influence, we predict that different types of attributions will have different consequences for the quality of group decision making. In Experiment 1, individually focused attributions for past success caused groups to consider more divergent alternatives prior to making a shared decision. In Experiment 2, individually focused attributions for past success facilitated the sharing of unique information and improved decision accuracy. These findings suggest that the group-serving tendency to internalize success may have important consequences for group performance that have not yet been considered in current research. 相似文献
309.
人类对疾病的认识需要一个过程,故误诊是医学发展的正常现象。但对于那些可知可预见的疾病则应避免误诊。从临床误诊病例中分析误诊的主观原因有医生认识不足、思路狭窄、经验主义等。只有综合思维、辩证分析、不断学习,才能最大限度避免误诊。 相似文献
310.
本文从教育与心理学家的思维培育思想、思维培育的基本理论和思维培育的主要课程和方法三个方面,分析与介绍了国外思维培育的理论与实践。 相似文献