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Diego Vaggione 《Studia Logica》1996,57(2-3):239-241
It is proved that the directly indecomposable algebras in a congruence modular equational class form a first-order class provided that fulfils some two natural assumptions.Research supported by CONICOR and SECYT (UNC).Presented by W. Dziobiak 相似文献
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This research investigated the role of leadership functions in a context of intergroup negotiation by using a simulation game of inter-regional conflict and cooperation (SIRC2 ). As a part of their social psychology course, 151 undergraduate students participated. It was hypothesized that there are four leadership factors in an intergroup context: in-group performance, in-group maintenance, out-group negotiation performance, and out-group relation maintenance. According to a factor analysis, however, the functions of in-group performance and out-group performance merged into the same category and could not be differentiated independently. Moreover, this research provided evidence that opportunities for intergroup communication and the amount of resources available to each group can facilitate these leadership functions. This study also found links between leadership functions and group outcomes. In a group with members who were homogeneous and facing common survival problems, the in-group/out-group performance function facilitated the achievement of the group goal. On the other hand, in a group with members with different roles, and who were self-sufficient for survival, the in-group maintenance function facilitated the achievement of the group goal. Moreover, in the intergroup context, the out-group relationship maintenance function was also important for group goal attainment. These results were interpreted using the path–goal theory and Fiedler's contingency theory. 相似文献
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This study explored whether and to what extent vocational personality types based on Holland (1994) correlate with and explain unique variance of academic success among 117 undergraduate civil engineering students by using the Self-Directed Search–Form R, 4th Edition. Findings indicated that the majority of participants’ 1st-letter code was Realistic (39.3%), 2nd-letter code was Investigative (24.8%), and 3rd-letter code was Social (21.4%), compared with Holland's 3-letter codes for civil engineering (Investigative, Realistic, Enterprising). The study also calculated the degree of congruence between personality type and occupational environment. For career counselors, the findings underscore the importance of using congruence scores to predict engineering students’ academic performance. 相似文献
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We investigated the relationship between components of rumination, brooding and reflection, and autobiographical remembering by testing whether voluntary and involuntary rehearsal mediated rumination-related variation in the sensory-affective and metacognitive features of memory experience. We focused on achievement and failure memories as both are goal-related events, yet they represent distinct experiences in terms of valence and functionality. For failure memories, brooding was associated with intense recollection and reduced psychological distance. Brooding was related to enhanced distance of achievements, indicating the disruptive effects of brooding on remembering. Although reflection attenuated the recollective experience for both achievement and failure memories, it brought achievement memories to a subjective closer past. Structural equation modelling demonstrated the mediating role of involuntary remembering on the pattern of remembering experience. 相似文献
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成就目标理论是当前教育领域有关学生成就动机最为活跃的研究热点之一。20世纪中后期Weiner在整合动机理论和归因理论的基础上提出了成就目标理论。之后,Dweck等学者对成就目标的概念、分类及动机模式进行了大量研究。成就目标理论具有很好的发展前景,并在学校教育、体育运动和生涯发展等领域得到广泛的应用。未来研究应强调成就目标的动态性与多维性,注重成就目标的性别差异和社会期许效应,运用多元化方法以提高成就目标研究的外部效度,拓宽研究对象以增强成就目标的应用性研究,更加关注情绪情感与成就目标之间的关系。 相似文献
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目的采用学业自我效能感问卷、社会比较量表和成就目标定向量表,选取湘潭地区中学生,共计403名有效被试为对象进行研究,探讨中学生自我效能感、社会比较与成就目标的关系。结果发现,不同性别、年级中学生在成就目标、自我效能感和社会比较上的存在显著性差异;中学生自我效能感、成就目标和社会比较有显著相关;自我效能感与社会比较对成就目标有显著预测作用。 相似文献
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