SP口头反馈对医学生OSCE成绩影响初探

方法:将考生随机分为两组,实验组先进入有SP反馈的长站,再进入没有SP反馈的短站;时照组先进没有SP反馈的短站,后进入有SP反馈的长站.同时使用问卷调查学生对SP反馈的正确性和帮助大小的看法.结果:对照组和实验组的SP短站成绩差异无显著性,第一SP长站和第二SP长站间的成绩差异有显著性.问卷调查结果显示,90%的学生积极评价SP反馈.结论:SP反馈有助于提高相同结构和相同任务站点的成绩,但对于不同结构不同任务站点的成绩影响还需要进行更严格的设计的研究.     

垂直一体化对企业创新的非线性影响

本文以2000-2012年A股主板制造业上市公司为研究对象,使用价值增值法测算垂直一体化程度,并利用专利引用来衡量企业创新产出,实证分析了垂直一体化对企业创新的影响及其异质性。研究发现,垂直一体化与企业创新之间的关系呈倒U型,即存在先正后负的现象。进一步,该倒U型关系在高科技企业以及非国有企业中更为显著。并且,该倒U型关系仅存在于东部和中部地区。本文对企业合理选择组织边界以及政府制定相关政策均具有参考价值。     

Influence of organization learning on innovation output in manufacturing firms in Kenya

Knowledge entrepreneurship is increasingly becoming important in driving innovation for high levels of competitiveness. The purpose of this study was to investigate the relationship between Organization Learning (OL) and Innovation Output (IO) for improved performance in manufacturing firms in Kenya. The theoretical underpinnings on this study are the Schumpeter’s (1934) innovation theory of and the Gleick (1987) complexity theory. The methodology used was mixed method research because it provides a more holistic understanding of a thematic area. The research design that was used is cross-sectional design because it allows for making observations on different characteristics that exist within a group at a particular time. The target population was manufacturing firms across the country. Multi-stage sampling strategy was used to sample 303 respondents from 101 firms. Primary and secondary data were used to collect both qualitative and quantitative data. The questionnaire, interview schedule and a checklist of key informants were used to collect data. Content validity was used to ascertain the credibility of the research procedure and internal consistency technique was used to test for reliability. Correlation and linear regression were used to determine the relationship between OL and IO. Work disruptions were avoided by making prior arrangements and appointments. The findings indicate that OL has a significant influence on IO. It is recommended that lifelong learning, management support and risk tolerance should be encouraged to improve creativity. High creativity is important in raising the capacity to integrate internal and external knowledge for greater levels of IO. Further research should be carried out to find how customers and suppliers information can be utilized to enriched OL.     

黄土高原社会-生态系统变化及其可持续性

在全球变化和人类活动驱动下,社会系统与生态系统均处在不断加剧的动态变化中,揭示二者之间的互馈机制是保持和增强系统弹性以及可持续性的科学基础。黄土高原地区是中国人口、资源、环境矛盾最集中的区域之一,也是黄河重要的产水区和绝大部分泥沙的来源区。合理布局黄土高原土地利用格局,协调黄土高原水土保持和黄河下游水资源利用与泥沙控制,是黄土高原地区和黄河流域可持续发展的重大需求。本文立足于国际社会-生态系统耦合研究前沿和可持续发展与生态建设的国家需求,综述了区域社会系统与生态系统的互馈机制和社会-生态系统的耦合模拟的研究进展,总结了黄土高原社会-生态系统的变化过程和驱动机制,认为发展社会-生态系统动态机制分析方法和稳态转换识别方法,建立耦合社会系统与生态系统的土地利用权衡与优化模型,是推动社会-生态系统耦合研究理论与方法创新、为黄土高原的可持续发展提供科学依据的重要途径。     

离岸集装箱码头新装卸工艺模式下陆域集疏运堆场堆存空间分配

离岸集装箱码头因其岛屿面积限制,难以通过扩建码头内部堆场增加吞吐能力。为解决这个问题,提出一种离岸集装箱码头新装卸工艺模式。新装卸工艺模式是通过在离岸集装箱码头附近的陆域地带建设陆域集疏运堆场,与离岸集装箱码头进行协同装卸作业的模式。陆域集疏运堆场堆存空间分配的目标是满足离岸集装箱码头装卸作业预翻倒要求;单批次输送集装箱的量受到陆岛运输最大通行能力限制。根据上述目标与特点,构建新装卸工艺模式下陆域集疏运堆场堆存空间分配模型,并设计蒙特卡洛树搜索算法进行求解。通过算例分析验证模型的有效性。结果表明该方法能够满足陆域集疏运堆场堆存空间分配需求并提高离岸集装箱码头的吞吐能力。     

写作与二语习得

写作历史性地被认为只是口语的记载,是一种为记录和传播口语而出现的现代发明,并长期被排斥于应用语言学研究的边缘。这种偏见因而造成了二语习得研究对写作的忽视。事实上,写作作为一种语言输出形式,是与口语输出同样重要的有效交际行为,能在二语学习过程中减轻面对面交际给学习者带来的心理压力,并有助于语言知识的内化。网络电子邮件的出现更突显了写作在二语习得中的作用。因此,如何利用写作来促进二语学习应成为二语习得研究的一个重点。     

Transforming,storing and consuming athletic experiences: a coach’s narrative of using a video application

The analysis of sport performance in competitive contexts has become synonymous with the use of a range of software applications and hardware e.g. heart rate monitors and gps systems. With the prevalence of technology in mind, a small but growing corpus of literature has begun to consider this phenomenon and its influence upon the coaching process. This study adds to this literature by detailing the autoethnographic experiences of a case study coach; Derek. A contextualised and richly described narrative account of Derek’s experience of using coaching applications is provided. Analysis of Derek’s narrative suggests that technology can be a useful means by which individuals make sense of their experience. Specifically, (1) technology can be a ‘ready-to-hand’ instrument that enhances the coaching process. Unfortunately, (2) technology may become the only and ‘calculative’ means by which individuals come to understand their performance. In such instances, it is important to note that (3) the videos we use to understand our performance are transformed and incomplete representations of lived athletic experiences. Thus, Derek’s story illustrates how technology can be both an enabler and barrier to athletes who wish to holistically understand their own lived experiences and engage in coach-athlete relationships. The accompanying analysis draws upon concepts from Heideggerian philosophy to add insight into the use of technology within the coaching process. In so doing, the study prompts coaches to critically view their coach-athlete relationships as situated in a wider world which contains, and can be mediated by, technology. In addition, Derek’s story (re)directs researchers and coaching practitioners interested in technology to a useful literature (philosophy of technology) which may further inform their understanding of coach-athlete relationships.     

学术会议论文新颖性测度研究——以计算机学科人工智能领域为例

【目的/意义】研究学术会议论文新颖性测度方法,为会议论文的新颖性评价提供新的视角。【方法/过程】本 文设计吸收新颖性指标和产出新颖性指标测度方法,选择“人工智能”领域的会议论文进行实证研究。【结果/结论】 具有高吸收新颖性水平和高产出新颖性水平的论文成为A类会议论文的几率最高,结果表明新颖性测度方法的有 效性,对于会议论文的自动评审有一定的参考意义。【创新/局限】设计会议论文新颖性测度方法,促进会议论文评 价的发展;只针对计算机的人工智能领域进行实证,具有一定的领域局限性。     

大学英语写作中逻辑错误分析及对策

通过对湖南中医药大学非英语专业学生的两篇习作的研究表明：在纠正学生写作中所犯的逻辑错误方面,相比教师反馈,同级反馈效度低。因此,教师在对学生习作进行反馈时,尤其要指出学生逻辑思维方面的漏洞,以提高他们的逻辑思维能力,从而从根本上提高学生的写作应用能力。     

耕地经济产出影响因素实证分析——以湖北省为例

耕地的经济产出是评估耕地价值的重要参数。论文利用湖北省及省域范围内17个市、州、区1996年～2003年的耕地经济产出及利用等相关数据，应用因子分析和主成分回归法分析了影响耕地经济产出的自然、人文、科技以及政策等因素。根据主成分分析，影响耕地经济产出的因子可以概括为资源禀赋因素、耕作制度因素、农业科技进步因素和政策制度因素，而回归结果表明源禀赋、耕作制度、农业科技进步是目前影响耕地经济产出的重要因素，农村税 费改革、种粮补贴、农村承包土地二轮延包等政策的出台及实施对耕地经济产出没有明显的影响。在目前生产条件下，稳定农业生产资料价格，控制其涨幅，改善农业生产条件，选择气候生产利用率较高的生产模式，改革耕作制度，提高耕地复种指数并发展多熟制的间作套种，是今后提高耕地经济产出的主要方向。