韩国学生中介语各句长句子状语复杂度发展研究

通过分析韩国学生中介语句长为6-20个词句子的状语复杂度的发展情况,发现:初、中、高三级中介语各句长句子带状语句子比例、多层状语比例呈逐级上升趋势,多处状语比例和句首状语比例则呈逐级下降趋势;韩国学生中介语表现出句首状语比例超量、多处状语比例突出、多层状语比例不足的特点,在句长一定的前提下,多处状语与多层状语之间可能存在此消彼长的对立互补关系;研究同样发现中介语状语复杂度的发展具有不受教学输入语言制约的特点.     

复杂性科学与高等工程教育的融合

通过对重庆某高校422名工科学生的问卷调查和 SPSS 数据统计分析,探讨了复杂性科学与当前高等工程教育融合的程度以及学生的期望程度,对比了美国和澳大利亚的相关研究结果。研究发现：我国的工程教育在数学、物理和工程方面学生有良好的基础,但科学、技术和人文素质教育还比较薄弱;在跨学科教育和新兴科技知识方面还有明显的欠缺;工科学生有一定的问题解决技能和学习策略,但核心能力培养还有待加强;学生已初步认识到复杂性科学与工程教育融合的重要性和必要性。因此,有必要借鉴复杂性科学的理念与方法,全面改革传统的工程教育模式与课程体系,以主动适应复杂多变的世界。     

Studying Complexity of Model-based Clustering

Cluster analysis is a popular statistics and computer science technique commonly used in various areas of research. In this article, we investigate factors that can influence clustering performance in the model-based clustering framework. The four factors considered are the level of overlap, number of clusters, number of dimensions, and sample size. Through a comprehensive simulation study, we investigate model-based clustering in different settings. As a measure of clustering performance, we employ three popular classification indices capable of reflecting the degree of agreement in two partitioning vectors, thus making the comparison between the true and estimated classification vectors possible. In addition to studying clustering complexity, the performance of the three classification measures is evaluated.     

An improved algorithm for the triples test

An algorithm, in the form of a Fortran subroutine TRIPLE, is given to compute statistics for the triples test for symmetry, The computational complexity of the algorithm is O(n²) which is an improvement over the straight for ward method, which is O(n³).     

ADAPTING THE MODEL: THERAPEUTIC WORK WITH CHILDREN FROM ARMY FAMILIES

This paper describes the development of a specialised therapeutic service for parents and their young children in an inner city social services family centre. The Under five's counselling service, based on the Tavistock Model, offers brief psychoanalytic interventions to parents who are worried about their young child's development e.g. crying, eating, persistent crying etc. The premise behind setting up such a service was to provide therapeutic intervention to the parent-child relationship at the earliest possible stage, preventing further ongoing difficulties. The paper draws upon observations and interventions with families I have seen in the first year the service was opened. Particular themes which emerged in the work with these families will be highlighted. In particular a link is made between early childhood difficulties and unresolved loss in the mother's lives. Furthermore, the impact of the service upon the rest of the social services family support services is commented upon.     

The Interface of Racial Identity Development with Identity Complexity in Clinical Social Work Student Practitioners

This paper examines the influence that one's racial identity development plays in the overall professional identity development of clinical social work student practitioners. The author discusses race, as a construct, in a post-modern world. Utilizing Saari's (1993, 2000) discussion of identity complexity, the paper demonstrates how the ability to dialogue about issues of race, in a complex and multi-faceted way, is reflective of evolution in one's racial identity development. To further one's identity development, the importance of a dialogical mode of interaction (Bahktin, 1986, 1993) is emphasized.     

Love in Times of Cholera: Systemic Reflections on Supporting Families Through the Journey(s) of Illness

This paper is the result of our increasing interest in the experience of illness in families and the concomitant reflections on how best to therapeutically support these families through this process. This interest led us to reflect on the nuanced way in which language establishes a play with the experience of illness, a play that can amplify or reduce its effects. Such an interplay in turn led us to consider the valuable role that family therapists have in helping families and treating practitioners to create a safe space for conversation about illness. Further questions are also explored in relation to whether there is a role for family therapists in facilitating the interface between our clinical practice with clients and the wider treating medical community. And, if so, what shape would such an interface take? Considerations at this level would include the anticipation of psychological reactions to diagnosis of chronic and life‐threatening illnesses, in particular the importance of ‘normalisation’ of the psychological reactions to such chronic and/or life threatening diagnoses; the complex dynamics emerging from the interface between the effects of illness in the subjectivity of the ill person and the grief experienced by the other family members; different family members’ narratives of the illness; relevant community contexts; and, lastly, ways to help the family members and/or the ill person navigate the medical system including the use of second opinions, cyberspace information, and other systems in their ecology, such as the spiritual dimension. Some aspects of children's narratives of illness are also identified. The paper has been organised around the dialogue that the authors had around one of their clinical cases.     

The Steiner Tree Problem in Kalmanson Matrices and in Circulant Matrices

We investigate the computational complexity of two special cases of the Steiner tree problem where the distance matrix is a Kalmanson matrix or a circulant matrix, respectively. For Kalmanson matrices we develop an efficient polynomial time algorithm that is based on dynamic programming. For circulant matrices we give an -hardness proof and thus establish computational intractability.     

On the Complexity of Constructing Evolutionary Trees

In this paper we study a few important tree optimization problems with applications to computational biology. These problems ask for trees that are consistent with an as large part of the given data as possible. We show that the maximum homeomorphic agreement subtree problem cannot be approximated within a factor of , where N is the input size, for any 0 in polynomial time unless P = NP, even if all the given trees are of height 2. On the other hand, we present an O(N log N)-time heuristic for the restriction of this problem to instances with O(1) trees of height O(1) yielding solutions within a constant factor of the optimum. We prove that the maximum inferred consensus tree problem is NP-complete, and provide a simple, fast heuristic for it yielding solutions within one third of the optimum. We also present a more specialized polynomial-time heuristic for the maximum inferred local consensus tree problem.     

理想和现实的冲突——解读毛姆《月亮和六便士》的主题

毛姆的长篇小说《月亮和六便士》揭示了人性自由的追求与社会现实之间的矛盾.主人公无法割舍身边的"六便士",又执着追求虚幻的"月亮",凸现了现实与理想的矛盾冲突,显示毛姆对人性的矛盾以及人生内涵的复杂性的深刻探索.