基于分权视角的城市规划管理体制模式及改革建议

关于我国的城市规划管理权限一直存在＂集中＂与＂放权＂的讨论,并且城市规划管理体制也存在差异。通过对全国部分城市的规划管理体制进行梳理,从市、区（县、市）两级分权视角总结出我国城市规划管理体制中的＂垂直型＂、＂半垂直型＂和＂非垂直型＂三种典型模式,分别以南京、北京和上海为案例分析三种规划管理体制典型模式的主要特点和事权划分,并对其各自的优缺点进行比较,最后提出我国城市规划管理体制改革的若干建议,包括将规划决策权＂上收＂与实施管理重心＂下移＂、建立＂市—区—镇（街）＂三级规划管理机构体系、整合市区两级规划部门内部机构设置形成＂大处室＂和＂大科室＂以及完善城市规划委员会制度等。     

经济增长、国际贸易与环境污染的关系研究

文章利用金砖国家1992-2011年的平衡面板数据,分别使用固定效应模型和两阶段GMM的方法检验了经济增长、国际贸易和环境污染间的相关关系.研究结果表明,金砖国家的经济增长与环境污染之间是呈现N型曲线关系,印度处于N型曲线的第一拐点前,中国和南非位于第一拐点和第二拐点之间,巴西和俄罗斯处于第二拐点之后.总体上金砖国家的贸易开放度的提升会加剧环境污染,由贸易活动引起的经济增长会使环境恶化;经济结构、产业结构、人口增长、能源消耗及技术进步等因素均会对污染物的排放产生影响.     

MNEC的建库初探

本文介绍了语料库、语料库语言学及ESP语料库。     

经济增长与日照减少:源自广东的实证研究

过去30年中国经济发展所取得的成绩举世瞩目,但生态环境污染日趋加剧亦成为不争的事实.作为中国现代化的缩影,1980-2010年,广东每增加1％的工业产值,日照时间减少0.3852小时.抽样调查的结果显示:目前广州、深圳等珠三角城市的日照时数已降至接近公众期望的临界值.遏制此种态势,转变经济发展模式固然重要,但更为重要的在于物欲的“零增长”.要做到这一点,日照时数应成为政府环保绩效评价的重要指标.     

解析《野性的呼唤》中的自然主义

杰克.伦敦是美国自然主义作家中的杰出代表,他的作品《野性的呼唤》则充分体现了战胜敌人后而存活所需的力量与勇气,表达了适者生存的原则。而巴克传奇经历及其主题思想的揭示对当今中国不能不说有其特定的社会教育意义。     

Lighting Effects on Older Adults’ Visual and Nonvisual Performance: A Systematic Review

Lighting plays an important role in daily life: It helps people perform daily activities independently and safely, and also benefits their health. This study assesses the research evidence of lighting’s impacts on older adults in four domains: (a) performance of activities of daily living and instrumental activities of daily living; (b) circadian rhythm; (c) fall prevention and postural stability; and (d) sleep quality. A comprehensive review of lighting studies on older adults’ visual and nonvisual performance was conducted using a modified PRISMA systematic review process. For the first domain, some older adults had difficulty in using the toilet, preparing meals, and doing laundry under lower illuminance. For the second domain, brighter and bluish lighting improved older adults’ circadian rhythm. For the third domain, low-intensity LED lighting affixed on door frames can help older adults maintain postural stability and prevent falling during nighttime movement. Finally, some studies concluded that receiving outdoor daylight during exercise was beneficial to older adults’ sleep quality. This study provides several methodological, theoretical, and collaborative suggestions for developing a more conclusive evidence base for lighting standards and strategies for older adults.     

Portuguese Scientists’ Migration: a study on the 2008 crisis aftermath

In the economic and social aftermath of the 2008 crisis there has been an important and growing new wave of highly qualified Portuguese emigration comprising scientists. No or very few public policies have been designed to reverse this phenomenon, risking the consequences of brain drain. International literature argues that professional reasons are central to scientists’ decision to migrate, even after the 2008 crisis. Spending some time in a foreign country to study, research, or teach, is perceived as a common step in an individual academic trajectory and an advantage for a successful professional career in academia. It is also encouraged by European Union policies. Twelve individual portraits of Portuguese scientists living in central Europe reveal how important other factors are to the migration decision‐making process. These factors include the economic crisis, student mobility programmes, and the current Portuguese scientific system revision.     

连片特困区城镇化进程与农民增收效应的空间计量分析——以武陵山片区为例

基于2000—2012年武陵山片区69县市(区)的面板数据,考虑空间异质性,运用空间统计的ESDA法和空间计量等方法,考察了片区农民收入与城镇化进程的空间相关性及其冷热点格局,比较产业城镇化和人口城镇化的农民增收效应。结果表明:(1)武陵山片区各县市(区)农民人均纯收入呈现出高度的空间正相关性,形成以丰都、彭水、武隆、黔江为中心的热点区及洪江、中方和鹤城为中心的次热点区;人口城镇化和产业城镇化空间相关性显著,热点区主要集中在张家界片区,有向周边蔓延趋势;铜仁地区处于"三低"分布的冷点区。(2)进一步的空间模型估计显示,人口城镇化是片区农民增收效应的主要动力,产业城镇化对农民收入增长亦有正效应,但带动能力偏弱。(3)农业技术水平、物质资本投资和经济密度的提高有利于农民增收,相反,片区金融发展的现状对农民增收存在抑制作用。根据以上结论提出了相关政策建议。     

Complete moment convergence of widely orthant dependent random variables

It is known that the dependence structure of widely orthant dependent (WOD) random variables is weaker than those of negatively associated (NA) random variables, negatively superadditive dependent (NSD) random variables, negatively orthant dependent (NOD) random variables, and extended negatively dependent (END) random variables. In this article, the results of complete moment convergence and complete convergence are presented for WOD sequence under the same moment conditions as independent sequence in classical result (Chow 1988 Chow, Y. (1988). On the rate of moment convergence of sample sums and extremes. Bull. Inst. Math. Acad. Sin. 16(3):177–201. [Google Scholar]).