唐代题画诗对题画诗体例的开创之功

中国诗与画的融合在唐代取得了具有标志性意义的进展,唐代题画诗集中反映出了这种进步。它开创和奠定了题画诗的基本体例,使题画诗作为一种特殊的诗歌品类得以成立。唐代题画诗的开创之功主要表现在:它拓宽了题画诗的诗体范围,各体齐备,改变了前代仅局限于以四言和五言诗的画赞、咏画诗题咏的局面,尤其是以律诗评画,对诗与画的结合有重要的意义;在题画方式方面,出现了自画自题和画上题诗的题画方式,并基本完成了评画赏画手法上的探索;从题画诗人来看,唐代的杜甫、白居易和刘商为后人树立了三种不同意义的典范。唐代题画诗对题画诗本身的发展和中国文人画的形成都具有深远的影响。     

辽宁打造世界级装备制造业基地路径分析

近年来,辽宁装备制造业快速发展,产业布局不断优化,自主创新能力持续提升,已经成为辽宁第一支柱产业,但距离世界级装备制造业基地的发展目标还有较大差距,一些重大装备的核心和主要功能部件还严重依赖国外,成套能力和总承包能力比较低,产业集群水平低。“十二五”期间,辽宁需要进一步提高装备制造业产品的国产化水平,支持企业通过兼并重组做大做强,促进其与生产性服务业的联动发展,将辽宁建设成为国际竞争力突出、综合配套能力强的世界级装备制造业基地。     

服务于河北沿海经济隆起带的地方院校人才培养模式

研究以铁路为单一主导方式,综合其它各种交通方式的铁路客运站综合交通枢纽内,其它各种交通方式的设施以铁路为中心进行布局的合理性。在对换乘流线系统性分析基础上,建立评价指标体系,采用灰色关联度系数评价方法,并通过案例对指标和采用灰色关联度系数评价方法的适应性进行检验。     

我国种植业空间布局是否呈区域分散化趋势

改革开放以来,我国种植业的空间布局发生了深刻变化。空间布局的演变是趋于专业化还是分散化,直接影响农业比较优势的发挥。文章选取了12种主要农作物,以1978—2009年的省级面板数据对我国种植业区域专业化进行了实证研究,结果表明,第一,自1978年以来,全国平均种植业区域专业化指数呈先降后升的明显趋势,个别年份出现波动,可能与当时的政策或经济环境有关;第二,各地种植业区域专业化指数及其变化趋势存在较大差异,农产品结构单一和经济较发达的地区往往专业化指数较高,而且大都呈上升趋势,而传统农业大省的专业化指数一般较低,且大都呈下降趋势。     

英语方位系统的语符模式

语符模式基于索绪尔的符号学思想，是我们讨论的理论框架。在这一框架中．主要讨论方位小句的概念结构和相应的句法体现，并进一步讨论以动词为中心分析和谓词函数存在的问题，并通过概念句法体现关系来提供合理、自然的解释。     

小城镇产业、空间和人口相关实证分析

小城镇在传统农业发展的基础上形成，但目前小城镇的发展与传统农业之间不再紧密相关。小城镇经济空间集聚能力进一步提升，产业发育和集聚发展不断演进。人口集聚对小城镇发展有一定的积极作用，但人口数量的多寡与小城镇经济发展潜力之间缺少实证支持。不同地理环境既影响小城镇的空间格局，也影响小城镇发展模式。需要根据小城镇不同的区位条件和特点，实施差异化的小城镇发展战略。     

Transportation and Migrant Adjustment in Georgia

Access to transportation is critical for functioning in modern American society, and minorities disproportionately lack access to transportation. Latinos in Georgia—most of whom are newcomers to this country—are considerably less likely than non-Latino whites to drive alone to and from work because they do not live in households with a car available for personal use. We propose that this factor, along with limited access to alternative modes of transportation, impedes the ability of Georgia’s newest Latino residents to adjust to their new environment. In this study, we examine the impact of limited transportation options on the adjustment experience of recent Latino migrants to Georgia. We document how lack of personal transportation lends itself to a number of social problems including inability to obtain different work or to take advantage of opportunities for advancement. For Latinos who are both recent migrants to Georgia and recent immigrants to the United States, lack of transportation creates an adjustment “bottleneck,” whereby various paths to adaptation are simultaneously impeded. We argue that improving access to driver’s licenses, pedestrian infrastructure, and, in some places, public transportation should be a policy priority for states adjusting to recent influxes of Latino migrants.

Spatial Regression Models for Demographic Analysis

While spatial data analysis has received increasing attention in demographic studies, it remains a difficult subject to learn for practitioners due to its complexity and various unresolved issues. Here we give a practical guide to spatial demographic analysis, with a focus on the use of spatial regression models. We first summarize spatially explicit and implicit theories of population dynamics. We then describe basic concepts in exploratory spatial data analysis and spatial regression modeling through an illustration of population change in the 1990s at the minor civil division level in the state of Wisconsin. We also review spatial regression models including spatial lag models, spatial error models, and spatial autoregressive moving average models and use these models for analyzing the data example. We finally suggest opportunities and directions for future research on spatial demographic theories and practice.

混交林对祥云新松叶蜂结茧空间格局的影响

在云南松树内,树冠投影圈及投影圈内各层次和各方向混交林地茧的聚集强度大于纯林;在树间,混交林地茧个体群分布的面积小于纯林,混交林是5株云南松约10m~2和20株云南松约40m~2,纯林中茧个体群分布的面积是7株云南松约14m~2和30株云南松约60m~2。混交林地相对茧口密度低于纯林,主要集中在 m-6与 m 之间,占50.00%。     

Geographic Information Systems and Spatial Data Processing in Demography: a Review

This paper reviews the use of geographic information systems (GIS) software for spatial data processing in demography. The review begins with an introduction to GIS. Next, it traces the three major types of spatial data problems confronting demographers: the geocoding and geoprocessing of microdata, estimation of detailed population surfaces, and combining data aggregated to incompatible zone systems. GIS and non-GIS solutions to these problems are contrasted, with examples from published research. Spatially pre-processed datasets available to demographers are then discussed. The author concludes by noting that the solutions GIS provides to previously intractable data problems in spatial demography might encourage a focus on dynamic processes of population change in local areas.