城市设施环境对初中学生体质健康的影响——以大连市主城区为例

青少年学生体质下降,身体形态肥胖化。论文以BMI指数衡量学生体质健康,通过地理加权回归模型分析了校内、通学以及社区服务设施对初中学生体质健康的异质性影响。发现:(1)初中学生体质健康社区分异明显,超重低风险和未超重高风险社区围绕超重高风险社区集聚。(2)能量摄入型设施分布从中心向边缘逐渐减少,能量消耗型设施表现出相反的特征,道路网密度向中心集聚,医疗设施呈离散分布。(3)学校人均绿地面积,通学距离、道路网密度,公交站、西餐厅、休憩设施、零售设施、医疗设施可达性对学生体质健康的影响在中心区与边缘区具有异质性。     

Optimum temporal and spectral window for monitoring crop marks over archaeological remains in the Mediterranean region

This paper aims to explore the formation of crops marks over archaeological features using remote sensing data. Crop marks are very important to archaeological research since they can reveal in an indirect way buried archaeological remains. Several researches have been able to locate subsurface relics via interpretation of multispectral and hyperspectral satellite images. However the best phenophase (time-window) where these crop marks are enhanced and which spectral bands are the most capable for this enhancement are still an open question for the scientific community. This study aims to address these fundamental aspects of Remote Sensing Archaeology. For this reason an extensive dataset was used: two control archaeological sites were constructed in two different areas of Cyprus (Alampra and Acheleia). In these areas both barley and wheat, were cultivated. In situ spectroradiometric measurements were taken over a whole phenological cycle (2001–2012) for both areas. More than 30 in situ campaigns were performed and more than 2600 ground measurements were collected. The phenological analysis of these measurements have shown that a period of only 15 days is best suitable for monitoring crop marks which is connected with one phenological stage; during the beginning of the boot stage of the crops. This period can be used in areas having similar climatic condition as Cyprus (Mediterranean region). Also as it was found, this phenological stage of crops might be also influenced by the climatic conditions of the area. The evaluation of a proposed Archaeological Index was performed at the Thessalian plain (central Greece), where several Neolithic settlements are established. The evaluation was made using both Hyperion and Landsat images. The results have shown that the proposed Archaeological Index is suitable for the enhancement of crop marks in satellite imagery.     

《清代官员履历档案全编·索引》校正

《清代官员履历档案全编》是研究有清一代中下级官员及职官制度,乃至清代历史极为重要的第一手资料,其中第30册《索引》按官员姓名笔画顺序排列,以方便读者检索。但《索引》存在不少讹误漏略之处,主要表现为姓名遗失、姓名书写错误、人物资讯遗漏、人物资讯误加、册次讹误、页码讹误、姓名排序错误等方面,本文分别加以纠正,期有裨于读者检索利用。     

China’s Information and Communication Technology in Geographic Perspective

Two economic geographers analyze the unprecedented growth of China’s information and communication technology (ICT) industry over the past decade (2000–2010)—an industry increasingly important as a new engine powering exports and providing infrastructure and services critical to sustaining economic growth. Using agglomeration and inequality indices including the Herfindahl and the Gini, the authors show that the geographic concentration of ICT activities has decreased over time, in tandem with a decline in their regional inequality; however, a new ICT development index (IDI) designed for this study reveals a significant and persistent gap in ICT development between the country’s advancing and lagging provinces. The paper also explores a range of factors contributing to “leapfrog” ICT growth in some provinces, as well as the challenges likely to be faced by the industry in the future. Journal of Economic Literature, Classification Numbers: L630, L960, O180, O330. 2 figures, 4 tables, 85 references, 1 appendix.     

Sex,Socioeconomic and Regional Disparities in Age Trajectories of Childhood BMI,Underweight and Overweight in China

Using a longitudinal dataset from the China Health and Nutrition Survey (CHNS), growth-curve models were employed to examine age trajectories of body mass index (BMI) for 1694 subjects in China, who were aged 2–11 in 1993 and followed in four waves (1997, 2000, 2004 and 2006). Based on age- and sex-specific BMI cut-points recommended for international use, the prevalence rates of overweight and underweight in the transition from childhood to adulthood (age 6–18) were also predicted. Sex, family income, rural–urban residency and geographical location were found to be significantly associated with the onsets, slopes, and acceleration of age trajectories in BMI, overweight, and underweight (p < 0.01). Children who had lower prevalence of underweight in the transition from childhood to adulthood exhibited higher prevalence of overweight than their counterparts. Moreover, the age interval during which children were more vulnerable to an increase in underweight was different from that for overweight. There were substantial regional disparities in the age trajectories of childhood overweight and underweight. Whereas the analyses suggest that the dual burden of nutritional problems (the coexistence of overweight and underweight) in China, is more like two sides of a coin than two separate health issues; the critical age period for intervening in childhood overweight is different from that of childhood underweight. Geographical indicators of childhood obesity in China deserve further attention.     

环境约束下陕西城镇化效率的区域差异及空间格局

本文运用因子分析法构建了陕西省的综合环境因子指数,将其引入到DEA以及Malmquist指数模型中,动态测度了2003-2014年间陕西及其各地市在有无环境约束下的城镇化发展效率的差异,并对各地市的城镇化效率进行了排名。研究结果表明:陕西城镇化的技术效率在有无环境约束下均没有达到有效状态;在加入环境约束后,技术效率均值波动性更大,呈"W"形,且下行趋势更加明显;传统城镇化发展的"规模不经济"效应,正在凸显出来,部分地市呈现出"规模效率"与"技术效率"均下降的状态。论文最后给出了提高陕西城镇化效率的政策建议。     

广东入境旅游流西向扩散时空动态演变研究

广东入境旅游流的西向扩散是我国入境旅游流运动的一个缩影,其动态演变规律对了解我国入境旅游流运动模式具有重要意义。通过对扩散转移态、时间和空间分布集中指数及转移密度等的计算,对广东入境旅游流西向扩散的演变特征进行了定量描述和刻画。结论显示:广东入境旅游流西向扩散呈现随距离递减的特征,其动态扩散年际间变动不大,但空间集中性日益增强并流向旅游资源富集的省区,相应地这些省区入境游客的转移密度也较高。     

饭店低碳化水平评价指标的构建及实证研究

本研究以粤港澳中高星级饭店管理人员和国内外饭店研究者为调研对象,在文献分析、专家访谈、问卷调查的基础上,通过因子分析法对样本数据进行深入分析,提出了饭店低碳化水平评价指标体系。该指标体系由分属6个维度的21项指标构成,其6个维度被命名为：碳减排措施指标、低碳管理指标、低碳引导指标、碳排放指标、碳汇指标和碳源构成指标。研究结果表明：碳减排措施指标、低碳管理指标及碳排放指标是评价饭店低碳化水平的重要因素;而样本分组比较则指出,饭店管理人员与研究者、港澳与内地饭店管理人员在对某些评价指标的认同上存在一定的差异。     

多卷书的著录与标引问题探析

由于多卷书自身的特点及复杂性,在采用CNM ARC格式进行机编著录时会产生许多问题,从而会影响书目资源的共享。对此本文进行了有益的探索,即各分卷共用一个ISBN的多卷书应采用整套著录法,各分卷有独立的ISBN的多卷书应采用分卷著录法;多卷书的分类标引和主题标引均应整套集中标引。     

入境旅游目的地城市的旅游意象评价指标体系研究——以北京和上海为例

本文以北京和上海两个一级入境旅游目的地城市为案例地,构建了包括入境旅游者对旅游资源和旅游商品的兴趣度、对旅游服务质量和对整体旅游环境氛围的评价的入境旅游目的地城市的旅游意象评价指标体系。该体系运用极小极大离差法进行指标的筛选,并应用变异系数法进行指标权重的确定。将所采集的北京和上海的数据代入该评价体系进行计算后发现,上海的总得分高于北京。