Methodological decisions and the evaluation of possible effects of different family structures on children: The new family structures survey (NFSS)

Every social science researcher must make a number of methodological decisions when planning and implementing research projects. Each such decision carries with it both advantages and limitations. The decisions faced and made by Regnerus (2012) are discussed here in the wider context of social science literature regarding same-sex parenting. Even though the apparent outcomes of Regnerus’s study were unpopular, the methodological decisions he made in the design and implementation of the New Family Structures Survey were not uncommon among social scientists, including many progressive, gay and lesbian scholars. These decisions and the research they produced deserve considerable and continued discussion, but criticisms of the underlying ethics and professionalism are misplaced because nearly every methodological decision that was made has ample precedents in research published by many other credible and distinguished scholars.     

More nonconcavities in information processing functions

The productivity of (human) information processing as an economic activity is a question that is raising some interest. Using Marschak's evaluation framework, Radner and Stiglitz have shown that, under certain conditions, the production function of this activity has increasing marginal returns in its initial stage. This paper shows that, under slightly different conditions, this information processing function has repeated convexities with ongoing processing activity. Even for smooth changes in the signals' likelihoods, the function is only piecewise smooth with non-differentiable convexities at points of conditional changes of action. For linear likelihood functions the processing value proves to be piecewise linear with convexities at these levels. This revised version was published online in June 2006 with corrections to the Cover Date.     

半支箭河中游先秦时期遗址分布的空间考察

通过基于GIS建立的遗址分布地形图和等级规模法则,在对半支箭河中游地区先秦各时期遗址进行分群、分区的基础上,对遗址间的等级结构进行的考察表明,半支箭河中游调查区内,在赵宝沟和红山时期,不论是处于同一群的遗址之间,还是不同的遗址集群之间,都没有出现明显的等级差别。在夏家店下层时期,在遗址不同层次的集群间以及同一个遗址集群内部,都出现了明显的等级结构,既有小范围的地区中心,也出现了大规模的地域性中心。夏家店上层时期的遗址仍然存在着小范围的地区性中心以及更高层次的区域性中心,但不同层次的中心间并没有表现出显著的等级结构。战国时期虽然形成了若干个小规模的地区性中心,但在整个调查区内都缺乏更高层次的区域性中心,表明还有更高地位的地区性中心或政体凌驾于这些小范围的地区性中心之上。     

从英语看汉语存在句句首方位结构的用法

文章以英语作为参照，从形式、功能和认知的角度出发，对汉语“LP＋VP＋NP”存在句句型中的句首方位结构进行了全面的分析：对方位词进行了界定，确定了方位结构的语法属性；对句首方位结构的语法功能作了探讨；从认知语言学的角度出发，分析了句首方位结构的认知功能。     

叙事文学与时间

通过分析不同时期东西方最具代表性的时间观,进而探讨时间观对叙述文学的发展所产生的影响。     

哈尔滨市人口分布问题研究

从整个市域来看,哈尔滨市人口分布具有不平衡性,为圈层结构。从城乡人口分布来看,市区与市辖市县之间形成了二元结构。在城镇规模结构体系上,表现为不够协调。哈尔滨市的人口分布对在土地利用效益、人居环境和城市的区域影响力等方面都构成了一定影响,因此,改善人口分布状态是哈尔滨市未来人口发展中必须着重解决的问题。     

Catalogue of Group Structures for Three-level Fractional Factorial Designs

Taguchi (1959) introduced the concept of split-unit design to sort the factors into different groups depending upon the difficulties involved in changing the levels of factors. Li et al. (1991) renamed it as split-plot design. Chen et al. (1993) have given a catalogue of small designs for two- and three-level fractional factorial designs pertaining to a single type of factors. Aggarwal et al. (1997) have given a catalogue of group structure for two-level fractional factorial designs developed under the concept of split-plot design. In this paper, an algorithm has been developed for generating group structure and possible allocations for various 3^n-k fractional factorial designs.     

促进云南农民增收的社会环境因素分析

农民长期持续地增加收入是农村发展的主题,也是国民经济发展的主题。作者通过分析影响农民增收的政治及社会因素,指出当前农民增收还存在许多不利因素。因此,要从5个方面改善农民的增收环境。     

协调城乡发展 构建和谐社会

目前城乡发展的差距问题日益严重,阻碍了我国构建和谐社会的步伐。因此,必须协调城乡经济社会发展,构建社会主义和谐社会。     

二元就业结构、劳动力流动与中国服务业发展

通过实证检验中国二元就业结构对服务业劳动力要素流动的影响,发现中国制造业、农业和服务业发展对服务劳动要素流动的引致需求弹性系数分别是显著性为正、显著性为负和相对显著为负;但考虑到各产业的国有单位就业比重时,上述服务劳动要素流动的引致需求弹性系数显著性为负,并且这种二元就业体制对三次产业发展引致服务劳动要素流动的影响在国有单位就业比重越大的产业越明显。因此,改变目前的这种二元就业体制是促进中国服务业要素自由流动,提高服务业吸纳就业效率的重要战略选择。