Applicability of a Neuroprobabilistic Integral Risk Index for the Environmental Management of Polluted Areas: A Case Study

Recently, we developed a GIS-Integrated Integral Risk Index (IRI) to assess human health risks in areas with presence of environmental pollutants. Contaminants were previously ranked by applying a self-organizing map (SOM) to their characteristics of persistence, bioaccumulation, and toxicity in order to obtain the Hazard Index (HI). In the present study, the original IRI was substantially improved by allowing the entrance of probabilistic data. A neuroprobabilistic HI was developed by combining SOM and Monte Carlo analysis. In general terms, the deterministic and probabilistic HIs followed a similar pattern: polychlorinated biphenyls (PCBs) and light polycyclic aromatic hydrocarbons (PAHs) were the pollutants showing the highest and lowest values of HI, respectively. However, the bioaccumulation value of heavy metals notably increased after considering a probability density function to explain the bioaccumulation factor. To check its applicability, a case study was investigated. The probabilistic integral risk was calculated in the chemical/petrochemical industrial area of Tarragona (Catalonia, Spain), where an environmental program has been carried out since 2002. The risk change between 2002 and 2005 was evaluated on the basis of probabilistic data of the levels of various pollutants in soils. The results indicated that the risk of the chemicals under study did not follow a homogeneous tendency. However, the current levels of pollution do not mean a relevant source of health risks for the local population. Moreover, the neuroprobabilistic HI seems to be an adequate tool to be taken into account in risk assessment processes.     

马克思主义经济学双重价值取向理论初探——兼论建设生态文明的双重终极目的

马克思学说中蕴藏着丰富的入学思想和生态学思想，使得马克思经济学具有鲜明的人学特征和生态学特征，两者是内在统一的。马克思恩格斯在建立和发展马克思主义理论时，始终是把人的解放与全面发展和自然的解放与高度发展作为自己的经济学哲学科学社会主义学说的终极价值追求和最高价值取向。这就是马克思学说与马克思经济学双重价值取向的本来面目。探讨马克思经济学双重价值取向理论，使人与人的发展和自然与生态发展问题回归马克思主义经济学视野，可以确立其作为马克思主义经济学基本价值维度的地位。党的十七大首次把“建设生态文明”写入党代会报告，是马克思主义经济学双重价值取向理论的重大发展。这种双重价值追求与取向，正是建设生态文明，形成可持续性经济发展模式的双重终极目的。     

略论唐诗与汉语言文化

唐诗之所以繁荣，成为中华文化的一个高峰，是诗歌发展到成熟阶段的必然结果，也是汉语发展到一定阶段的自然趋势。如何读诗，如何理解诗，是探讨唐诗时所不能回避的问题。诗并不神秘，要更好地理解唐诗，必须从文化传统和汉语言特点这两方面着手。     

湖南省科技人力资源现状与使用分析

对湖南科技人力资源的分析 ;分为三个基本层次进行 :一是全省专业技术人员总量 ;二是科技活动人员情况 ;三是R&D人才资源。分别从人员的分布、结构、密度、质量以及人才使用效益等方面进行分析。     

Making ends meet: perceptions of poverty in Sweden

During the era after the Second World War, Sweden has built a welfare system based on labor market participation and income maintenance. Low unemployment and decent wages are supposed to guarantee people a labor market income or income maintenance, which in turn should provide a proper standard for everyone. However, a rapid increase in unemployment and economic problems have made the future of the Swedish welfare state more uncertain than ever. These circumstances have, among other things, led to the suggestion that Sweden should abandon the income maintenance policy and create a social policy system with the more limited ambition of guaranteeing everyone a minimum income. In that case, one central question must be answered: what constitutes a decent minimum income in today's Sweden? Where should we draw the poverty line under which people will not be forced to live? These questions are central in the current debate. The consensual poverty line method is used in this article to derive a poverty line relevant for today's Sweden. The results shows that more than every fifth household has an income below the consensual poverty line. That is, they have an income that most Swedes would argue is too low to make ends meet. The level of the consensual poverty line was compared with the National Board of Health and Welfare's guidelines for social assistance. The consensual poverty line was shown to be more generous to small households and the norm for social assistance was more generous to larger households. Finally, the expenditure for guaranteeing all Swedish household a minimum income equal to the consensual poverty line was estimated: more than SEK 25 billion per year. The results in the article casts serious doubt on the ability of the Swedish welfare state to secure a decent income to all citizens.     

现代汉语语义系统刍议

语义单位、语义单位之间的结构关系、结构层次是现代汉语语言意义系统的三要素 ,不同性质的语义单位彼此之间复杂纠联 ,使构成语义系统的两子系统 (词汇意义、语法意义子系统 )、两次子系统 (词法意义、句法意义次子系统 )紧密地联结在—起 ,构成一个统一的内部饶有联系的结构整体     

高等教育结构优化:国外的实践与启示

高等教育结构优化是保障高等教育大众化质量的深层次问题。二战前后至 2 0世纪 90年代 ,主要工业化国家由精英高等教育向大众化高等教育转变并先后进入高等教育大众化发展阶段。在此期间 ,其高等教育在数量扩大的同时亦进行着高等教育结构的调整和改革 ,其基本做法对 2 1世纪初中国高等教育大众化有重要借鉴意义     

英语习语的变体剖析

从英语习语的变体类型及修辞特色两方面剖析了英语习语变体这一特殊语言现象,归纳总结了临时变体的常见形式,并从交际修辞和美学修辞的角度分析了习语变体的修辞特色和功能。     

基于层次分析法与模糊评价的学科水平评估

在学科建设中,学科水平评估可以采用专家咨询的方法,分别从学术队伍、科学研究、教学与人才培养和工作条件四个方面设计学科水平评估指标体系,运用层次分析法确定指标权重系数,针对评估指标的模糊性,建立学科水平评估模糊综合评价模型,并通过实例分析和计算,证明该学科水平评估体系合理、有效、可行。     

内陆外向型城市建设的障碍因素集层次结构分析模型

本文以西安内陆外向型城市建设为例，运用系统工程的基本思想、网络理论及综合评价技术，构建了内陆外向型城市建设的障碍因素集层次结构分析模型，找到了西安内陆外向型城市建设的主要和次要障碍因素集，提出了在目前和今后较长的一段时间内，西安内陆外向型城市建设的主要任务是大力发展第三产业。本模型方法对其它地区的内陆外向型城市建设及复杂的社会经济系统障碍因素定量分析研究也有较好的参考价值