Nearest neighbor search algorithm based on multiple background grids for fluid simulation     

郑德群  武频  尚伟烈  曹啸鹏 《上海大学学报(英文版)》2011,15(5):405-408

The core of smoothed particle hydrodynamics (SPH) is the nearest neighbor search subroutine. In this paper, a nearest neighbor search algorithm which is based on multiple background grids and support variable smooth length is introduced. Through tested on lid driven cavity flow, it is clear that this method can provide high accuracy. Analysis and experiments have been made on its parallelism, and the results show that this method has better parallelism and with adding processors its accuracy become higher, thus it achieves that efficiency grows in pace with accuracy.  相似文献   

女大学生创业的心理障碍分析——传统社会性别观念的影响   总被引：1，自引：0，他引：1  

孟彩 《柳州职业技术学院学报》2011,11(6):27-30

传统社会性别观念中存在的对女性价值的否定和贬低。使女大学生对创业形成了心理障碍,正确的分析和看待传统社会性别观念中对女性价值的负面评价,从创业培训课、创业绿色通道、女大学生心理素质训练营、二课堂活动、女性“四自”教育方面入手,为女大学生解除思想包袱,提供演练条件,提供配套服务,解除女大学生创业的心理障碍,鼓励和推动女大学生创业。  相似文献   

浅议绿色会计的建立与发展     

周剑 《湖南广播电视大学学报》2005,(2):53-54

绿色会计是近十年来发展起来的会计学科的一个重要分支，在西方发达国家，成为一个热门话题。绿色会计的研究把企业的经济效益和整个社会效益结合起来，更利于社会经济的可持续发展。  相似文献   

Linkages between cognitive and social dialogue patterns during collaborative small-group discussions     

《Learning and Instruction》2023

BackgroundCollaborative small-group discussions have the potential to promote reading comprehension, critical thinking, and argumentation. However, few studies have gone beyond cognitive processes to understand the social characteristics of dialogue and their potential contributions to students’ cognitive processing in turn-by-turn dialogic exchanges.AimsThis study closely examined dialogues between speakers and addressees regarding their levels of cognitive processing (i.e., cognitive dialogue patterns) and social processes reflecting social cohesion (i.e., social dialogue patterns). The aims were to understand, first, the relations between students' cognitive dialogue patterns and their social dialogue patterns, and second, the relations between students' cognitive dialogue patterns and peers’ social dialogue patterns.SampleThis study included 4070 speaking turns generated by 120 fifth-graders in 60 small-group discussions.MethodsStudents participated in small-group discussions, called Collaborative Social Reasoning. Dialogue between pairs of group members formed social networks, based on which Exponential Random Graph Models (ERGMs) were specified.ResultsFindings showed that speakers' social dialogue patterns were associated with their cognitive dialogue patterns. However, receiving social dialogue patterns from peers did not always predict students’ advanced types of cognitive dialogue patterns.ConclusionsThis study demonstrated that cognitive and social aspects of small-group discussions are intricately linked, and that encouraging social cohesion does not guarantee that students will engage in collaborative and critical discussions.  相似文献   

Enhancing the practice of social work     

Ruth King 《Action Learning: Research and Practice》2016,13(2):168-175

This account of practice focuses on my learning and development as a new Action Learning Facilitator. It reflects on my thoughts and feelings as I began to facilitate my own sets a year or so ago. It will discuss and reflect on topics such as communication, feedback, expectations (both mine, the set members and the organisations), values, ethics, power and confidentiality. It opens with a personal reflection on my experience of becoming a set facilitator and then explores other aspects of my learning. It draws out, in particular, the links between Action Learning and social work and the ways in which the principles that underpin each of these are complementary and mutually enhancing.  相似文献   

我国社会稳定研究综述   总被引：1，自引：0，他引：1  

吴春生  李小晖 《安康学院学报》2006,18(1):28-31

本文从社会稳定的内涵、形态、特征、影响社会稳定的新因素和实现社会稳定的对策等方面,比较全面、系统地梳理和归纳了近年来我国理论界关于社会稳定研究的最新成果.  相似文献   

What successful black South African students consider as factors of their success     

Pentecost M. Nkhoma 《Educational Studies in Mathematics》2002,50(1):103-113

Black South African students have a poor success rate in school leaving mathematics examinations. Attempts have been made to shift teachers' practices from teacher-centredness to learner-centredness, in Black schools, in order to improve the situation. So far, the attempts failed to yield the desired results. This paper reports on the findings of a study that aimed at learning from students and teachers in Black schools, as to what classroom practices lead to success in school mathematics, in their impoverished context.This revised version was published online in October 2005 with corrections to the Cover Date.  相似文献   

Assessing collaborative learning: big data,analytics and university futures     

Peter Williams 《Assessment & Evaluation in Higher Education》2017,42(6):978-989

Assessment in higher education has focused on the performance of individual students. This focus has been a practical as well as an epistemic one: methods of assessment are constrained by the technology of the day, and in the past they required the completion by individuals under controlled conditions of set-piece academic exercises. Recent advances in learning analytics, drawing upon vast sets of digitally stored student activity data, open new practical and epistemic possibilities for assessment, and carry the potential to transform higher education. It is becoming practicable to assess the individual and collective performance of team members working on complex projects that closely simulate the professional contexts that graduates will encounter. In addition to academic knowledge, this authentic assessment can include a diverse range of personal qualities and dispositions that are key to the computer-supported cooperative working of professionals in the knowledge economy. This paper explores the implications of such opportunities for the purpose and practices of assessment in higher education, as universities adapt their institutional missions to address twenty-first century needs. The paper concludes with a strong recommendation for university leaders to deploy analytics to support and evaluate the collaborative learning of students working in realistic contexts.  相似文献   

基于社会资本理论的大学生社交媒体多任务使用效果研究     

李强  高彦 《黄冈职业技术学院学报》2020,(1):45-49

在使用社交媒体的人群中,大学生群体对社交媒体的多任务使用与其学业成绩之间有着怎样的内在关联属性,对其社会资本的积累产生怎样的影响是本文的研究问题所在。对研究问题的原因进行探索性分析,研究发现,出于学习或娱乐目的的社交媒体多任务使用对大学生的学业成绩呈现负相关,不利于其学业成绩的提高,阻碍学习进程健康、科学开展,不利于其社会资本的正向积累。  相似文献   

关于民主社会主义的由来和发展     

Liu Yizhi 《大连大学学报》1992,(2)

半个多世纪以来,民主社会主义由理论到实践,由一国实践到多国实践,已经形成一股历史潮流,取得了一定的成就。然而,它们所建设的福利社会仍然是资本主义而并非社会主义。因此,我们不能把它们作为样板,走它们的改良主义道路。  相似文献