海州湾近海海水、沉积物及贝类体内重金属的含量和分布特征

根据2008年海州湾海域环境调查资料,着重分析了海州湾近海海水、沉积物及贝类体内重金属的含量及分布。结果表明,海州湾海水中Pb、Cd、Cu、Zn的含量均低于第二类海水标准;Pb、Cd、Zn在临洪河口、堤北附近海域含量高于其他海区。各海区沉积物中Pb、Cd、Cu、Zn、Hg和As的含量都低于《海洋沉积物质量》第一类标准,质量良好。文中依据《无公害水产品安全要求》和《海洋生物质量》进行评价,海州湾沿海36份贝样中,Hg、As、Cu、Pb、Cd、Zn的残留量均有不同程度超标,以Cd、As含量超标较为严重,海州湾近海贝类质量状况并不乐观。临洪河口到港区段海水、沉积物和贝类体内重金属受外在因素影响,叠加作用较为明显。     

数学仿真建模在生态环境实证研究中的应用——以舟山为例

随着工业化、城市化迅速发展,生活环境的日趋恶化,城市的严重污染, “掠夺式”开发与利用,人类活动的范围和程度超过了自然环境的承载力.保护生态环境已成为人们的一种追求.随着全球意识的加强,大气污染、海洋污染、城市污染等影响日益呈现国际化趋势,保护海洋、海岛环境问题已提到重要议事日程.本文以舟山为例,通过对环境的理想化建模和数据仿真,结合相关理论评价和分析舟山环境和环境污染现状,为舟山经济发展和环境保护提供了可借鉴的理论与实践.     

Evaluating the economic impacts of crop yield change and sea level rise induced by climate change on Taiwan's agricultural sector

This article investigates the effects of sea level rise and climate change induced crop yield alterations on Taiwan as well as possible adaptation strategies. For sea level rise of up to 5 meters, as much as 4.9% of total acreage and 16% of rice acreage would be lost. The empirical findings show that the sea level damages range from NT$ 0.84 to 4.10 billion while crop yield losses range from NT$ 1.79 to 2.55 billion. We investigate alternative adaptation strategies finding crop yield technological progress and tariff reduction could significantly mitigate these effects.     

Informal payments by patients for health services: prevalence and determinants

ABSTRACT

The aim of this paper is to explain the prevalence of informal payments in the health services sector in Southern Europe using the lens of institutional theory. To evaluate whether informal payments prevail due to formal institutional failures which lead to an asymmetry between the laws and regulations (formal institutions) and the unwritten rules (informal institutions), an analysis is undertaken of 2013 Eurobarometer survey data on the propensity to make informal payments by patients in Southern Europe. A strong association is found between the extent to which formal and informal institutions are unaligned, and the prevalence of informal payments, and such payments are found to be more likely when there is a lack of modernisation of governance coupled with a low range and reach of health services provision, lower health outcomes and systems focus on curative rather than preventative health services. The theoretical and policy implications are then explored.     

竹（浆）纤维/棉纤维混纺产品纤维含量定量化学分析方法的研究

本文根据竹（浆）纤维和棉纤维的物理化学性质及产品特点,采用不同批次的竹（浆）纤维和棉纤维混和进行试验,确定了用60%硫酸溶解竹（浆）纤维。试验条件为硫酸溶液浓度：60%±0.5%;溶解温度25℃±2℃;溶解时间20min±2min;浴比：1g试样：100～150ml溶剂;振荡速率140±10次/min。棉纤维的重量修正系数d=1.03,从而可准确、便捷地确定竹（浆）纤维/棉纤维混纺产品的纤维含量。     

苏南地区农业与农村经济可持续发展的观念障碍

本文提出苏南农业与农村经济发展现状并剖析了苏南农业与农村经济可持续发展的六大观念障碍：①资源优越观;②优势要素替代观;③消极依赖观;④自我封闭观;⑤重工抑农观;⑥片面发展观。     

发达省份区域增长失衡的回应:苏南与苏北

改革开放以来江苏省经济发展迅速,但区域增长失衡问题一直非常明显,与经济水平高度发达的苏南地区相比,苏北地区经济发展相对落后,对此在内生增长理论的基础上进行实证研究:资本投入不足、资本收益较低是苏北发展缓慢从而导致苏南苏北差距的主要原因.人力资本的外溢效应和交通基础设施等是导致苏南苏北地区增长失衡的重要因素,而苏中崛起战略可以带动苏北经济的发展。     

环渤海主要滨海城市旅游竞争力定量研究

环渤海区域滨海城市之间存在旅游竞争与合作的双面效应。定量评价滨海城市间旅游竞争力,比较其间旅游竞争力差异,对研究该区域内旅游竞合关系起到重要的指导作用。文章选取该区6个滨海城市为例,在选取较多量化指标基础上,将指标体系分解成三类要素。通过SPSS13.0软件进行因子分析,得到各类竞争力得分值,然后通过均方差计算各类方差贡献率作为权重从而得到总体综合评价值,深入比较分析各滨海城市之间旅游差异;同时分析区内旅游竞争演变趋势,据此提出区域旅游应积极采取整合政策。