专业课程教学中的美学思考

素质教育是当前教育界的一个热门话题,美育是培养高质量、高水平、高素质人才的一个重要方面。本文从教师的角度,阐述了专业课程教学中如何融入美学思想和进行美学实践,以提高学生的全面素质,增强学生的创造思维能力和激发学生的探究精神等方面的问题     

桥梁与人类文明的关系

从桥梁与人类文化历史的关系、桥梁与人类对材料的使用和创造的关系、桥梁与科学技术的关系等方面叙述了人类文明的成果与桥梁的关系 ,认为桥梁对于人类文明的意义已经远远超过了其本身的意义 ,成为人类文明程度的标志     

中古均田制度的农史观察

均田制是中国古代重要的土地制度之一,它的兴起与发展,与中古时代社会变迁与农业发展的宏观背景相联系:均田制与魏晋南北朝时期的民族大迁移、大融合相关联,既是中原既有生产关系与少数民族新型社会形态相结合的产物,也与民族迁徙而引发的农牧结构大调整和农牧技术的大发展密切相关。从这一视角出发亦可见均田制实施与隋唐盛世之联系。     

The impact of sales promotions on store performance: a structural vector autoregressive approach

The present paper analyses the impact of sales promotions on store performance, in the short and long term, from the retailer's point of view. Relationships among promoted and regular sales in the hypermarkets of a large-scale retail chain of national importance, are investigated by means of a structural vector autoregressive model (SVAR). Statistically significant effects of sales promotions in the heavy household section on store sales are found in the short-run; these promotions produce additional sales and thus act as an attractive factor. Promotions in textile category, on the contrary, produce an immediate negative effect on net sales. In the long run, negative statistically significant effects on regular sales are detected when promotions are repeatedly implemented within perishables category.     

陈云调查研究思想简析

文章分析了陈云的调查研究理论,即对调查研究重要性的深刻认识,调查研究的思想方法和工作方法,以及对调查研究者的素质要求。学习研究陈云的调查研究思想具有重要的理论意义和现实意义。     

BAYESIAN SUBSET SELECTION AND MODEL AVERAGING USING A CENTRED AND DISPERSED PRIOR FOR THE ERROR VARIANCE

This article proposes a new data‐based prior distribution for the error variance in a Gaussian linear regression model, when the model is used for Bayesian variable selection and model averaging. For a given subset of variables in the model, this prior has a mode that is an unbiased estimator of the error variance but is suitably dispersed to make it uninformative relative to the marginal likelihood. The advantage of this empirical Bayes prior for the error variance is that it is centred and dispersed sensibly and avoids the arbitrary specification of hyperparameters. The performance of the new prior is compared to that of a prior proposed previously in the literature using several simulated examples and two loss functions. For each example our paper also reports results for the model that orthogonalizes the predictor variables before performing subset selection. A real example is also investigated. The empirical results suggest that for both the simulated and real data, the performance of the estimators based on the prior proposed in our article compares favourably with that of a prior used previously in the literature.     

写作过程：构思与非构思的共存互补

构思是写作过程的重要环节,其必然性是由写作这种精神劳动的构建性、创造性特征所决定的;非构思是一种生成性写作,是作者在特定触煤刺激下显意识的重构或潜意识的突现;写作过程中构思与非构思共存互补。     

婚龄性别比失衡对社会运行和发展的影响——来自吉林省延边朝鲜族自治州农村地区的调查分析

婚龄性别比失衡问题到底有什么样的社会影响?这些社会影响的性质、影响范围以及具体表现又是怎样?为了回答这些问题,我们对延边地区进行了实地调查和深度访谈,发现该地区的婚龄男女性别比失衡相当明显。在这些地区,由于婚龄女性人口的大量向城市(国外)流动,当地的很多成年男性到了婚龄,都面临着无妻可娶的窘境。由此,对社会造成了一些负面的影响,社会运行和发展出现了一定程度上的离轨。     

关于农民工类型的思考

改革开放以来,在农民社会分化的基础上,出现了不同类型的农民工。按其居住地和从事职业的不同,可以划分为在乡在土型、在乡离土型、离乡离土型、离乡在土型四种类型。在乡在土型农民工既在家乡附近的企业打工,又经营土地,二者所得为其经济来源;在乡离土型农民工在家乡附近的企业里打工,不再经营土地,完全把打工收入作为经济来源;离乡离土型农民工离开家乡到外地打工,完全和先前的承包地脱离关系,打工收入为其经济来源;离乡在土型农民工虽然离开家乡到外地打工,但家庭承包地仍然经营着,二者所得为其经济来源。文章的目的在于更深入地研究农民工,认识不同类型农民工的特征、存在的主要问题、需求,为有关部门的科学决策提供依据,有效地解决农民工问题。     

"信访权"之宪法定位

我国宪法并无信访权的规定,但一般认为,信访制度的宪法依据是宪法第41条,是公民宪法赋予的建议权、申诉权的具体体现。然而从实践和宪法权利理论出发,有必要对信访权加以分解,分为政治性权利和非政治性权利,从代议机构监督和制衡行政权的高度加强信访制度建设,推进我国宪政制度的完善。