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101.
In this paper, we investigate the complete moment convergence and Lr convergence for maximal partial sums of asymptotically almost negatively associated random variables under some general conditions. The results obtained in the paper generalize some corresponding ones for negatively associated random variables. 相似文献
102.
李明 《北京市财贸管理干部学院学报》2012,28(1)
本文结合高职学生的母语现状,从语言的工具属性和文化属性,探讨了高职母语教育在突出其人文性的同时,仍应加强言语训练.高职母语教育应植根于生活,这既是语言工具性和文化属性的要求,也是高职母语教育保持活力和高职教育特点的诉求. 相似文献
103.
Child‐caregiver Attachment Representations in a Non‐Western Context: The Feasibility and Cultural Equivalence of Story Stems in Urban Ghana 下载免费PDF全文
Story stem measures are an increasingly popular method for assessing the attachment representations of young children, but little is known of their cross‐cultural applicability. This study aimed to characterise the attachment representations in 73 five‐ to eight‐year‐old children in urban Ghana, West Africa, using the Manchester Child Attachment Story Task (MCAST) to test its feasibility, psychometric characteristics and concurrent associations with caregiver‐ and teacher‐rated child behaviour, and to conduct a qualitative thematic analysis of methodological observations. Among the classifiable cases (92 percent), all attachment classifications were observed, yielding a higher rate of secure attachment than in European samples. Inter‐rater reliability, internal consistency, and internal structure were reasonable and largely similar to European studies, although one structural difference was the separation of ‘child assuagement of distress’ from other secure‐related items. MCAST narratives were associated with teacher‐ and caregiver‐rated hyperactivity, but internal consistency was low in most Strengths and Difficulties Questionnaire scales. Possible culturally‐sensitive explanations for our psychometric and qualitative findings are discussed. Overall, story stems are a promising tool for accessing attachment representations in non‐Western samples, although modifications are likely to improve cross‐cultural equivalence when applied to non‐Western cultures. Further investigation is needed to link MCAST outcomes to parenting and socio‐emotional development. 相似文献
104.
文章利用数理统计方法对我国三大球制作近十年的专利申请信息进行了整理加工和定量分析,结果表明,2005-2014年中国三大球专利技术处于发展阶段,并逐渐趋于成熟,三大球专利技术创新能力大幅度提高,但技术交叉程度不高;球门架、球体及照明装置等领域要避免重复研究,电信号装置和电通信技术等领域是未来三大球专利技术研发的重点;三大球科技创新能力主要集中在山东、浙江、江苏、黑龙江和广东五个球类制造业较为聚集的省份。研究旨在能为我国三大球产品制造业企业提高核心技术竞争力提供一些有益信息。 相似文献
105.
Marjolein J. E. Greuter Xiang‐Ming Xu Jie‐Bin Lew Evelien Dekker Ernst J. Kuipers Karen Canfell Gerrit A. Meijer Veerle M. H. Coupé 《Risk analysis》2014,34(5):889-910
Several colorectal cancer (CRC) screening models have been developed describing the progression of adenomas to CRC. Currently, there is increasing evidence that serrated lesions can also develop into CRC. It is not clear whether screening tests have the same test characteristics for serrated lesions as for adenomas, but lower sensitivities have been suggested. Models that ignore this type of colorectal lesions may provide overly optimistic predictions of the screen‐induced reduction in CRC incidence. To address this issue, we have developed the Adenoma and Serrated pathway to Colorectal CAncer (ASCCA) model that includes the adenoma‐carcinoma pathway and the serrated pathway to CRC as well as characteristics of colorectal lesions. The model structure and the calibration procedure are described in detail. Calibration resulted in 19 parameter sets for the adenoma‐carcinoma pathway and 13 for the serrated pathway that match the age‐ and sex‐specific adenoma and serrated lesion prevalence in the COlonoscopy versus COlonography Screening (COCOS) trial, Dutch CRC incidence and mortality rates, and a number of other intermediate outcomes concerning characteristics of colorectal lesions. As an example, we simulated outcomes for a biennial fecal immunochemical test screening program and a hypothetical one‐time colonoscopy screening program. Inclusion of the serrated pathway influenced the predicted effectiveness of screening when serrated lesions are associated with lower screening test sensitivity or when they are not removed. To our knowledge, this is the first model that explicitly includes the serrated pathway and characteristics of colorectal lesions. It is suitable for the evaluation of the (cost)effectiveness of potential screening strategies for CRC. 相似文献
106.
Empirical Bayes estimation in continuous one-parameter exponential families under associated samples
Qingzhu Lei 《统计学通讯:理论与方法》2017,46(7):3621-3630
In this paper, we study the empirical Bayes (EB) estimation in continuous one-parameter exponential families under negatively associated (NA) samples and positively associated (PA) samples. Under certain regularity conditions, it is shown that the convergence rates of proposed EB estimators under NA or PA samples are the same as those of EB estimators under independent observations, which significantly improve the existing results in EB estimation under associated samples. 相似文献
107.
在体育艺术的发展过程中,体育题材舞蹈剧目作为2001年后的新兴学科逐渐成为体育与艺术融合中的一道靓丽风景.采用文献资料、录像观察、调查等方法,以全国体育艺术节专业展演中优秀体育题材舞蹈类作品为例,深入探索体育题材舞蹈剧目内涵的表现特征及价值诉求. 相似文献
108.
徐磊 《西北大学学报(哲学社会科学版)》2015,(1):75-84
我国有证搜查还处于内部控制、自我约束和事后监督的阶段。被搜查者的合法权利不得不严重依赖于侦查人员搜查的文明程度。而无证搜查立法的拘谨与侦查实践的现实需要之间存在显著的差异。我国搜查措施所存在的问题,显示出搜查措施对侦查机关的规范和约束力度还处于较低的水平,对被搜查者权利的保障仍有所不足。我国不仅需要完善有证搜查制度,而且更需要建立和规范以同意搜查为核心的无证搜查制度,以追随刑事诉讼现代化之步伐,实现法治中国之梦想。 相似文献
109.
《滇省夷人图说》是清嘉庆时云贵总督伯麟主持编修的云南民族图册,该图册描绘了云南108种民族的外貌特征、生产生活场景,以及风俗习惯等内容. 《滇省夷人图说》中有12幅记录少数民族婚俗的图画和图说,本文从聘礼、迎亲习俗、媒妁以及通婚圈四个方面入手,解析了图中所反映的清中期云南民族的婚俗文化. 相似文献
110.
收集某三甲中医院2014—2019年中风多专业一体化诊疗平台医疗服务效率及费用控制方面的8项关键指标数据,采用主成分分析法对其效益进行综合评价。综合评价结果由高到低依次是2019年、2018年、2017年、2015年、2016年、2014年,与实际情况基本相符。结合多专业一体化诊疗平台实际情况,提出相应发展建议,通过提高资源利用率和服务效率、坚持公益性、控制费用不合理增长、加强人才队伍建设等途径促进诊疗平台的长效发展。主成分分析法消除了原始指标之间的信息重叠,为多专业一体化诊疗平台提供了较为客观可行的综合评价方法。 相似文献