内外控人格特质与工作满意度关系的实证研究

以中国联通安徽分公司156 名雇员为调查对象,分析、探讨了个人统计变量、内外控人格特质、工作满意度三者间的关系。Person 相关分析表明:内外控人格特质与员工的整体工作满意度正相关,即员工越内控,其整体满意度越高;通过线校回归分析得到工作满意度与内外控人格特质及个人统计变量的回归关系。     

草鱼呼肠孤病毒及其免疫防治研究进展

对草鱼呼肠孤病毒的形态结构、理化特性、分子生物学特性、免疫原性及其免疫防治等研究进行了综述,并提出其今后的研究方向,以期为更好地防治鱼出血病提供指导.     

南水北调工程下穿高速公路暗涵施工控制技术

南水北调是国家重点工程,下穿既有结构物的大型暗涵是南水北调工程中一种比较典型的结构形式。下穿段浅埋暗挖施工过程中洞内安全和地面环境问题突出;对于大型钢筋混凝土结构而言,施工中防温裂技术难度大,影响因素错综复杂,一旦控制不当,容易造成结构裂缝超限,严重影响暗涵结构的耐久性和使用功能。论文以南水北调中线古运河枢纽工程下穿石太高速公路段为背景,对既有高速公路路面沉降和箱涵结构混凝土限裂温控标准进行了分析研究。研究认为,施工过程中既有路面沉降应控制在 100 mm以内、结构混凝土内部温降应控制在54.4 ℃以下,     

高校内部会计控制存在的问题及对策

隐喻是人们将更为熟悉的事物的特点和结构映射到相对陌生的事物上,最终形成一种新的概念结构。本文运用隐喻化词语的认知模式,以英语委婉语为解读对象,以求揭示英语委婉语的隐喻本质及语域投射域范畴及其意义演变情况。     

直销“异化”风险的法律防范

直销易于＂异化＂为金字塔销售计划的特征,使得直销制度一直难以被人们完全接纳。如何在合理发展直销业的同时,行之有效地杜绝直销＂异化＂,是直销立法所关注的重点问题。文章结合国外的直销立法经验以及我国直销法律政策的演进历程,深入分析目前我国直销法律防范直销＂异化＂的相关规定,并就如何制止目前仍存在的非法传销活动提出相应的建议。     

内部控制的影响因素及经济后果研究——国外内部控制实证文献评述

SOX法案颁布后,针对内部控制的研究成为一个热点,仅以世界上被广泛认可的三本顶尖会计学术杂志（Top Three）为例,近几年就发表了30多篇这方面的高质量学术论文。这些文献,从影响因素和经济后果两个方面来分析内部控制的实证研究成果,期望能为我国理论界开展内部控制的实证研究,为实务界认识内部控制,继而建立、健全和有效实施内部控制提供帮助。     

聚合物微球粒径与岩芯孔喉的匹配关系研究

根据岩芯孔喉基本计算公式,计算岩芯的平均孔喉直径,通过吸水膨胀后不同大小聚合物微球在岩芯中的封 堵效果,研究了聚合物微球大小与岩芯孔喉的匹配关系,确定了聚合物微球在岩芯中具有稳定封堵性能时微球粒径与 岩芯孔喉直径的比值范围。从聚合物微球吸水膨胀性能、剪切前后微球粒径变化、不同大小聚合物微球在岩芯中的封 堵效果、与岩芯匹配后的聚合物微球调剖作用对水驱采收率的影响几个方面,研究了聚合物微球大小与岩芯孔喉的匹 配关系,从而为聚合物微球调剖体系大小选择提供实验依据。研究表明,当聚合物微球粒径与岩芯孔喉直径比值在 0.33～1.50 时,聚合物微球可以在岩芯中形成稳定的封堵能力,当聚合物微球粒径与孔喉直径比值在1.20～1.50 时,聚 合物微球兼具良好的运移能力和封堵效果。     

基于风险计量指标的证券组合投资的数学模型及其应用

本文建立的证券组合投资的数学模型采用风险系数β作为控制证券投资风险的参数,其经济意义明确,实用性强。该模型应用于证券组合投资,效果明显,操作方便。     

Case–control studies with complex sampling

The use of complex sampling designs in population-based case–control studies is becoming more common, particularly for sampling the control population. This is prompted by all the usual cost and logistical benefits that are conferred by multistage sampling. Complex sampling has often been ignored in analysis but, with the advent of packages like SUDAAN, survey-weighted analyses that take account of the sample design can be carried out routinely. This paper explores this approach and more efficient alternatives, which can also be implemented by using readily available software.     

Heteroscedastic Regression Models and Applications to Off-line Quality Control

We discuss in the present paper the analysis of heteroscedastic regression models and their applications to off-line quality control problems. It is well known that the method of pseudo-likelihood is usually preferred to full maximum likelihood since estimators of the parameters in the regression function obtained are more robust to misspecification of the variance function. Despite its popularity, however, existing theoretical results are difficult to apply and are of limited use in many applications. Using more recent results in estimating equations, we obtain an efficient algorithm for computing the pseudo-likelihood estimator with desirable convergence properties and also derive simple, explicit and easy to apply asymptotic results. These results are used to look in detail at variance minimization in off-line quality control, yielding techniques of inferences for the optimized design parameter. In application of some existing approaches to off-line quality control, such as the dual response methodology, rigorous statistical inference techniques are scarce and difficult to obtain. An example of off-line quality control is presented to discuss the practical aspects involved in the application of the results obtained and to address issues such as data transformation, model building and the optimization of design parameters. The analysis shows very encouraging results, and is seen to be able to unveil some important information not found in previous analyses.