科学假说的证实性探讨

系统剖析了逻辑实证主义的证实观,提出了证实的必然性概念;在此基础上,根据科学认识活动的特点和过程,把必然性概念划分为三个层次,即本体论必然性、认识论必然性和评价论必然性;并讨论了证实性评价的确认度方法。     

Semiparametric Time-Varying Coefficients Regression Model for Longitudinal Data

Abstract.  In this paper, we consider a semiparametric time-varying coefficients regression model where the influences of some covariates vary non-parametrically with time while the effects of the remaining covariates follow certain parametric functions of time. The weighted least squares type estimators for the unknown parameters of the parametric coefficient functions as well as the estimators for the non-parametric coefficient functions are developed. We show that the kernel smoothing that avoids modelling of the sampling times is asymptotically more efficient than a single nearest neighbour smoothing that depends on the estimation of the sampling model. The asymptotic optimal bandwidth is also derived. A hypothesis testing procedure is proposed to test whether some covariate effects follow certain parametric forms. Simulation studies are conducted to compare the finite sample performances of the kernel neighbourhood smoothing and the single nearest neighbour smoothing and to check the empirical sizes and powers of the proposed testing procedures. An application to a data set from an AIDS clinical trial study is provided for illustration.     

8-羟基喹啉-丙烯酸三元稀土配合物的合成及表征

在乙醇溶液中，以稀土氯化物，丙稀酸与8-羟基喹啉为原料合成了15种三元稀土配合物，经过元素分析、EDTA配位滴定分析、红外光谱表征，确定了稀土配合物的组成．并推测了其分子结构，经差热热重（DTA TG）测定，分析了配合物的热稳定性和热分解行为。     

浅谈俄语口语中的语境及情境省略句

口语在语言交际中占很重要的地位。能够正确的理解口语中的语句,语境起了举足轻重的作用。由于语境的存在,口语中才产生了大量的情景省略句,如何理解这些句子,它们又与口语中的语境有着怎样的密切关系?这就是本文要研究的重点。     

复正规矩阵的亚正定性

研究了复正规矩阵的亚正定性，给出了复矩阵之积为复亚正定矩阵的一系列充要条件，获得了一些新的结果；改进并推广了Ky Fan Taussky定理、Fejer定理等。     

Pseudo‐likelihood ratio tests for semiparametric multivariate copula model selection

The authors propose pseudo‐likelihood ratio tests for selecting semiparametric multivariate copula models in which the marginal distributions are unspecified, but the copula function is parameterized and can be misspecified. For the comparison of two models, the tests differ depending on whether the two copulas are generalized nonnested or generalized nested. For more than two models, the procedure is built on the reality check test of White (2000). Unlike White (2000), however, the test statistic is automatically standardized for generalized nonnested models (with the benchmark) and ignores generalized nested models asymptotically. The authors illustrate their approach with American insurance claim data.     

Co-creative Leadership: An Integrated Approach towards Transformational Leadership

The classical understanding of team leadership is extremely difficult to sustain in times when complexity and dynamics have risen to such high levels that very few individuals can assimilate them. The success of team leadership requires the ``participation of those already implicated'' in the development and implementation of a solution – and therefore in the leadership process. How can this be achieved practically? It requires a leadership approach that allows each relevant perspective to be included, in a practical way, in the development of a common position, which can then be implemented collectively. Co-creative leadership creates this possibility – a transformational leadership approach that allows an organisation as a whole to adapt to its environment.     

论管理中的绿色和谐人假设

西方管理理论伴随着对人性认识的深化而不断演进,人性假设的每一次进步相应也就建立起管理理论发展的一个里程碑,而人性假设的缺陷也就造成管理理论的缺陷。绿色和谐人假设是符合生态时代真理性判断要求的伦理事实判断,按绿色和谐人假设进行管理,实即按生态时代的道德原理和伦理规范来管理。绿色和谐人假设无疑是生态时代管理理论和实践的人性基础。     

"以往吝"衍文考

前修时贤说《蒙》卦初六爻之贞兆辞“以往吝”,歧义颇多。本文通过对《周易》古经含“往”字的句式的归纳分析,认为“以往吝”之“以”为衍文。     

Krashen的“输入”理论对英语新闻听力教学的启示

英语新闻听力是英语专业学生学习的一个薄弱环节。研究K rashen的语言输入理论,对开展英语新闻听力教学有很大的启示。