基于异质生产要素模型对农民工与城镇劳动力关系的研究

随着进城农民工数量的增加,农民工与城镇劳动力的关系研究显得十分必要。农民工与城镇劳动力各具不同的人力资源禀赋,属于异质生产要素。基于改进的异质生产要素模型,利用希克斯互补弹性公式计算,结果显示两者主要表现为互补性,因而农民工与城镇劳动力两者总体上是相容的。积极发展城镇化,鼓励农民工进城并实现身份的转变,统筹城乡劳动力市场管理,合理配置劳动力资源具有十分重要的意义。     

论心理学实验证据对宗教认知优势理论的不充分性

当代宗教认知科学提出了宗教表征具有特定认知优势的主张,以解释宗教现象的复现性和普遍性.然而,该解释策略以人类心智中存在具有成熟自然性的、产物为概念表征的心智模块为前提,而宗教认知科学用以支撑这一前提的发展心理学实验证据和认知心理学实验证据只能分别证实人心中存在成熟自然的模块和产物为概念的模块,逻辑上无法构成对这一前提的完整支撑.同时,现有证据所支撑的成熟自然模块,其产物并不满足概念的组合性要求和同一性要求.宗教认知科学需要进一步补充实验证据或修正其理论观点.     

米兰·昆德拉与张贤亮小说中死亡意识之比较

捷克作家米兰·昆德拉与中国作家张贤亮都善于通过对人的身体的书写来折射出人类超越死亡之路。由此表现出来的是作家对人性伦理的哲性思考。在不同的文化背景下，两位作家的写作姿态同中有异：同样是对性政治的关注，昆德拉的着眼点在于个性，而张贤亮的关注点在于集体的理性力量；由此差别又带出了作家对于灵一肉关系的不同见解。     

Estimation on Varying-Coefficient Partially Linear Model With Different Smoothing Variables

The authors give the estimation on the varying-coefficient partially linear regression model with different smoothing variables. The efficient estimators of the intercept function and the coefficient functions are obtained by a one-step back-fitting technique based on their initial estimators given by local linear technique and the averaged method. Furthermore, their asymptotic normalities are given. Some simulation studies are used to illustrate the performances of the estimation.     

A modified subset selection formulation with special reference to one-way and two-way layout experiments

The usual formulation of subset selection due to Gupta (1956) requires a minimum guaranteed probability of a correct selection. The modified formulation of the present paper includes an additional requirement that the expected number of the nonbest populations be bounded above by a specified constant when the best and the next best populations are ‘sufficiently’ apart. A class of procedures is defined and the determination of the minimum sample size required is discussed. The specific problems discussed for normal populations include selection in terms of means and variances, and selection in terms of treatment effects in a two-way layout.     

Majorization minimization by coordinate descent for concave penalized generalized linear models

Recent studies have demonstrated theoretical attractiveness of a class of concave penalties in variable selection, including the smoothly clipped absolute deviation and minimax concave penalties. The computation of the concave penalized solutions in high-dimensional models, however, is a difficult task. We propose a majorization minimization by coordinate descent (MMCD) algorithm for computing the concave penalized solutions in generalized linear models. In contrast to the existing algorithms that use local quadratic or local linear approximation to the penalty function, the MMCD seeks to majorize the negative log-likelihood by a quadratic loss, but does not use any approximation to the penalty. This strategy makes it possible to avoid the computation of a scaling factor in each update of the solutions, which improves the efficiency of coordinate descent. Under certain regularity conditions, we establish theoretical convergence property of the MMCD. We implement this algorithm for a penalized logistic regression model using the SCAD and MCP penalties. Simulation studies and a data example demonstrate that the MMCD works sufficiently fast for the penalized logistic regression in high-dimensional settings where the number of covariates is much larger than the sample size.     

高职《财经写作》课程项目教学体系研究

转变高职教育传统的教学模式是一项重要的、具有创新意义的工作。建构主义学习理论、情境学习理论和杜威的实用主义教育理论成为构建高职财经写作课程项目教学新体系的理论依据。该课程项目教学新体系强调：以企业实际工作为行动导向，以具体情境为教学项目，以学生为主体组织教学活动，以多样化的解决问题的方法拓展学生思路，真正做到“学中做、做中用、用中学”。     

抗战时期贵阳的社会舆论表达

抗战时期,贵阳传统的公共空间因为不适应抗战的大形势开始发生变化,首先作出反应的是贵阳公共空间中的社会关系。这主要表现为社会流动的加快、社会功能的变化、城市社会结构的转型、贵阳城市空间结构的转换等。与此同时,贵阳社会各界关于抗战社会舆论的表达找到了合适的路径,如筹建相关社会组织和社会团体,在报刊发表抗战舆论,组织相关的社会活动如戏剧、音乐和书画展等,宣传抗战,动员民众参加抗日。     

信息系统成本与效益评估方法分析

介绍了信息系统成本与效益评估的几种方法,并且分别讨论了这些方法的优缺点,为投资方在投资信息系统项目时提供有效的参考依据.     

中国上市公司终极控制权及其与东亚、西欧上市公司的比较分析

本文运用终极产权论对上市公司的控股主体进行分类,通过追踪上市公司终极控制股东,发现在1260家样本公司中,终极控制股东拥有的控制权平均为43.67%,而其投入的现金流平均只有39.33%,就是说控制股东投入的现金流显著小于其获得的控制权,有4.34%的差异,两者的比值为0.890。在三种终极控制股东中,家族企业投入了相对较少的现金流量,却取得了相对较多的控制权,控制权和现金流量权的偏离达到了49.16%。同时,通过对中国上市公司和东亚、西欧国家的上市公司进行比较分析,得出了许多有意义的结论。