6-苯乙炔基双二茂铁丙烷Fc-C(CH3)2-F′c-C≡CPh的合成及表征

通过6-乙炔基双二茂铁丙烷与碘化亚铜反应,合成了6-乙炔化亚铜基双二茂铁丙烷中间体,然后将中间体与碘苯反应,合成了一个新的化合物6-苯乙炔基双二茂铁丙烷.利用元素分析,IR,UV-Vis,MS等方法对新化合物进行了表征,并推测出新化合物的组成和结构.     

Detection of glitches and signal reconstruction using Hölder and wavelet analysis

We present a method based on a local regularity analysis for detecting and removing artefact signatures in noisy interferometric signals. Using H6;lder and wavelet transform modulus maxima lines analysis (WTMML) [S. Mallat, W. Hwang, Singularities detection and processing with wavelets, IEEE Transaction on Information Theory 38 (1992) 617–643] in suitably selected regions of the time-scale half-plane, we can estimate the regularity degree of the signal. Glitches that are considered as a discontinuity on the signal show H6;lder component lower than a fixed threshold defined for a continuous signal. After detection and signature removal, the signal is then locally reconstructed using Mallat reconstruction formulae. The method has been tested with Herschel SPIRE FTS proto-flight model calibration observations and shows remarkable results. Optimization of the detection parameters has been performed on the correlation coefficient, the scale domain for H6;lder exponent estimation and reconstruction for SPIRE FTS signals.     

公布四、六级考试单项成绩价值不可低估

自大学四、六级考试实施以来 ,考生拿到的成绩通知单仅为一个总分。许多考试未通过的学生 ,复习时常常眉毛胡子一把抓 ,忙了一学期 ,再考试 ,结果仍然是不及格。针对此情况 ,笔者通过问卷调查 ,运用反拨效应理论对问卷结果进行分析 ,认为四、六级考试公布单项成绩十分必要 ,且价值不小。     

σ值和DPMO值转换表相关问题探讨

目前，介绍6σ管理的一些文献给出的d值和DPMO值转换表可谓五花八门，反映出人们对此问题认识上的不统一，甚至存在一定偏差。因此，有必要从理论上探讨σ值和DPMO值之间的转换关系，并以此为依据对现有的σ值和DPMO值转换表进行修正。     

6-乙炔基双二茂铁丙烷[Fc-C（CH3）2-（C5H4）Fe（C5H4）-C=CH]及其钴簇合物的电化学性质研究

利用循环伏安法对双二茂铁丙烷．6-乙炔基双二茂铁丙烷及其钴簇合物的电化学性质和氧化还原行为进行了研究．研究结果表明．在6-乙炔基双二茂铁丙烷及其钴簇合物中乙炔取代基、簇骨架C2Co2等均能使其两个铁原子中的电子具有更大的交互性．     

我国法学教育体制改革研究

知识经济、"法治"、"入世"、全球化、统一司法考试、世界经济-法律一体化等社会现实和发展趋势,迫使与之极不适应的我国法学教育体制必须进行大刀阔斧的改革。本文在论述以上挑战和机遇的基础上,提出了制定法学教育规范和质量标准,对法学教育实行法制化管理;改革法学教育体制,保留学士、硕士、博士学位,增加且主要采用6年本硕联读制;撤消一切法学成人教育和部门法学学历教育,将法学教育统归教育行政主管部门管理;将单科政法院校和部门院校统统并入综合性大学法学院,以保证统一的人才培养质量,理顺管理体制,实行统一的标准化管理等改革建议。     

从四、六级考试角度谈大学英语教学

本文从大学英语教学的现状出发,论述大学英语教学与四、六级考试的关系,提出在新形势下,大学英语教学实践的若干建议.     

国际史学界对六至九世纪中国东北边疆民族与中央王朝关系史研究述评

国际史学界对我国东北边疆民族史的研究，不论是研究方向的选择，研究热点的转换，还是价值观念的取向。无不深刻受到其国内意识形态和国际政治局势风云变幻的制约和影响，无不带有鲜明的政治烙印。对关系史问题的研究也当然是如此，可谓鱼龙混杂，国际史学界对此问题的研究，无疑为我们从更深的层面上展开相关史实的研究，提供了多角度的借鉴。当然，对待这些研究论著，还需要我们持去粗取精、去伪存真、去邪扶正的科学研究态度。     

"I'LL DIE WITH THE HAMMER IN MY HAND": JOHN HENRYISM AS A PREDICTOR OF HAPPINESS

This paper examines the association between John Henryism - a behavioral predisposition to cope actively with psycho-social environmental stressors - and happiness. On the basis of previous research on aspiration and goal regulation, we predicted that John Henryism would be negatively associated with happiness when controlling for demographic factors and attainment in various domains of life. We tested the prediction in a sample of hypertensive participants (n = 758) drawn from an inner-city, mainly African-American, safety-net hospital in Jefferson County, Alabama. Bivariate analysis revealed no association between John Henryism and attainment in six domains of life: marriage, children, education, employment, income, and health. However, a significant negative association between John Henryism and happiness was found both in bivariate analysis (Spearman’s ρ = -0.335; p < .001) and when controlling for demographic factors and attainment using ordinal logistic regression analysis. There was a significant interaction effect between John Henryism and gender: being male was positively associated with happiness among participants with low John Henryism, but negatively associated with happiness among participants with high John Henryism. While further study would be required in order to establish the extent to which these findings can be generalized as well as their causal underpinnings, the results support the hypothesis that John Henryism is negatively associated with happiness, especially among men, and underscore the limitations of using self-report measures of happiness as proxies for well-being for purposes of public policy.     

中国老年人口失能率及失能规模分析——基于第六次全国人口普查数据

依据2010"六普"长表中生活不能自理老年人数据,计算了分全国及分省区、年龄、性别、城乡的老年人口失能率,并推算其规模。结果表明,我国老年人口失能规模为522万,总失能率为2.95%,其中男性2.52%,女性3.35%,低于以往的文献报道。老年人口失能率随着年龄上升而快速上升,60岁组老年人口合计失能率为0.68%,70岁组为2.15%,80岁组为6.49%,90岁组为18.56%,百岁及以上的高达29.19%。老年人口失能率在城市、镇、乡村之间存在较大差距,城市失能率最低(2.35%),其次是镇(2.60%)、最高是乡村(3.33%)。