Sample Size Calculations for Precise Interval Estimation of the Eta-Squared Effect Size     

Gwowen Shieh 《Journal of Experimental Education》2015,83(2):203-217

Analysis of variance is one of the most frequently used statistical analyses in the behavioral, educational, and social sciences, and special attention has been paid to the selection and use of an appropriate effect size measure of association in analysis of variance. This article presents the sample size procedures for precise interval estimation of eta-squared and partial eta-squared in fixed-effects analysis of variance designs. The desired precision of a confidence interval is assessed with respect to (a) the control of expected width and (b) the tolerance probability of interval width within a designated value. In addition, sample size calculations for standardized contrasts of treatment effects and corresponding partial strength of association effect sizes are also considered.  相似文献   

Comparison and Translation of English & Chinese Idioms     

武雯敏 《科学中国人》2014,(6):110

Till present,there are far fewer scholars fascinated by the study of English and Chinese idioms fro the angle of classification.Therefore,the paper writer plans to carry out the comparative classification study of Chinese and English idioms from three angles:grammar and vocabulary,rhetorical point of view and source of idioms,to find out the similarities and differences,studying the corresponding translation strategy.  相似文献   

Interference of medical contrast media on laboratory testing     

Giuseppe Lippi  Massimo Daves  Camilla Mattiuzzi 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2014,24(1):80-88

The use of contrast media such as organic iodine molecules and gadolinium contrast agents is commonplace in diagnostic imaging. Although there is widespread perception that side effects and drug interactions may be the leading problems caused by these compounds, various degrees of interference with some laboratory tests have been clearly demonstrated. Overall, the described interference for iodinate contrast media include inappropriate gel barrier formation in blood tubes, the appearance of abnormal peaks in capillary zone electrophoresis of serum proteins, and a positive bias in assessment of cardiac troponin I with one immunoassay. The interference for gadolinium contrast agents include negative bias in calcium assessment with ortho-cresolphthalein colorimetric assays and occasional positive bias using some Arsenazo reagents, negative bias in measurement of angiotensin converting enzyme (ACE) and zinc (colorimetric assay), as well as positive bias in creatinine (Jaffe reaction), total iron binding capacity (TIBC, ferrozine method), magnesium (calmagite reagent) and selenium (mass spectrometry) measurement. Interference has also been reported in assessment of serum indices, pulse oximetry and methaemoglobin in samples of patients receiving Patent Blue V. Under several circumstances the interference was absent from manufacturer-supplied information and limited to certain type of reagents and/or analytes, so that local verification may be advisable to establish whether or not the test in use may be biased. Since the elimination half-life of these compounds is typically lower than 2 h, blood collection after this period may be a safer alternative in patients who have received contrast media for diagnostic purposes.  相似文献   

中日局部地区老年人身体形态、素质、机能指标的对比研究     

朱珊珊  刘云发  张兴伟  李在军 《湖北体育科技》2014,(2):131-135

运用文献资料、测试、数理统计方法探讨中日老年人体质共性异性特征,分析差异原因,为中国老年人健康管理的完善提供依据。  相似文献   

三碘苯酚乙基纤维素微球的制备     

刘瑞丽  姜庆军  刘士远  李文新 《中国科学院研究生院学报》2005,1(5):575-578

为提高造影剂的颗粒度,减少血池造影剂透过血管壁向组织间质渗出,影响血池造影剂的造影效果,采用液中干燥法( in-liquid drying method)制备了三碘苯酚乙基纤维素微球，研究了三碘苯酚与乙基纤维素的比例对微球成球性，粒径以及载药量的影响，发现两者的比例为1：2时成球性最好，所得微球为规整的球形，微球粒径最小，平均粒径D50为3.68um, 载药量为41.4%。  相似文献   

对1983年夏季热带大气环流异常的分析     

黄真  陶诗言 《中国科学院研究生院学报》1992,(1)

本文利用1980—1983年夏季 ECMRWF 资料,分析了1983年夏季热带大气环流的异常;指出1983年夏季大气对1982—1983ElNino 事件的响应,主要发生在北半球热带夏季风区,并且以东亚季风区最显著;引起1983年亚洲夏季异常减弱的主要因子是赤道印度洋至“海洋陆地”之间的纬向热力对比的异常减弱.  相似文献   

相邻关系视角下的反语运用     

龙德银 《四川教育学院学报》2011,27(6):86-89

反语运用是人们受大脑中知识结构的关系性知识的制约,是在具体的语境中对不同程度反向相邻关系的本能感知。反语运用的机理可以解释为：说话人说出反语是受意向支配的,意向内容在意向态度的作用下,以相邻关系为中介,可推衍出反语的显性表述;反语听话人以反语的显性表述为基础,经过语境的过滤,以相邻关系为中介,得到反语的隐性表述,识别出反语的对立性,最终推理出反语说话人的意向。  相似文献   

《英汉词汇对比研究》述评     

单士栋 《聊城师范学院学报》2011,(2):42-44

作为对比语言学的新作,《英汉词汇对比研究》运用对比语言学的最新研究成果,对英汉词汇对比方面的十个热点问题,如词汇表达力,词化能力,搭配能力,词汇理据等进行了积极地探索和阐释,为我们进一步探索英汉词汇差异的本质提供了坚实的基础和指引。  相似文献   

“十一五”期间华东地区竞技体育发展水平分析     

薛金霞  王敬同 《体育科技文献通报》2011,19(4):57-59

运用文献资料法、数理统计法、分层归类比较法和逻辑分析等方法,对华东地区＂六省一市＂近年来的竞技体育发展状况和竞技体育实力水平进行详细统计并归类对比分析,旨在得出该地区各省市竞技体育方面存在的问题和缺陷,为各自今后的竞技体育发展提供相应的发展策略、参考依据和理论借鉴,以此来推动和促进华东地区各省市以及我国竞技体育实力水平的提高。  相似文献   

古诗词“物我对照”鉴赏法基本类型综述     

赵阳 《康定民族师范高等专科学校学报》2014,(3):83-86

在众多的古典诗词当中,由于"物我"隔阂的存在,加之古人多以"兴趣"、"神韵"论诗,成为读者阅读和鉴赏的障碍和"烟雾弹"。以"物我对照"的角度去审视作品,就能化"物我"的隔阂为"物我"的联系,这里归纳了"物我对照"的四种基本鉴赏方法,并对其审美特点做出了简要的分析。  相似文献