古树名木文化价值货币化评估研究

从物质文化价值和非物质文化价值的角度,建立了古树名木文化价值评估指标体系。将古树名木的文化价值分为物质自身价值、历史文化价值、社会生态价值。运用基本价值×调整系数之和的公式法计算了物质自身价值及历史文化价值。运用条件价值评估法(CVM)基于人们的支付意愿评估社会生态价值。最后,以福州国家森林公园中的千年古榕为例评估其文化价值,得出其文化价值的评估值为1.901亿元。     

山西省新型农业经营体系构建问题研究

党的十八大报告明确提出,要坚持和完善农村基本经营制度,培育新型经营主体,发展多种形式的规模经营,构建新型农业经营体系,这为创新农业经营组织指明了方向。山西省作为农业大省,正处于加快现代农业发展的关键期,也要积极构建新型农业经营体系,明确战略定位和发展思路,走出一条具有山西特色的新型农业经营体系的路。实践证明山西省新型农业经营体系构建取得了一定的成绩,但发展过程中也暴露出了一些问题,即新型农业经营类型比例不均衡、土地流转制度不健全、生产效率不高等。究其原因,主要是几个因素的叠加影响,包括政策支持力度不到位、农业劳动者科学文化水平不高及农业经营的科技化水平不强等,因此山西省应从加强政策引导与资金投入、建立完善的农民技能培训及提高农业生产经营的科技化与机械化水平等方面积极入手,进一步促进新型农业经营体系的持续稳定发展。     

《搜神记》报恩主题探析

《搜神记》是魏晋南北朝志怪小说的翘楚，虽多“丛残小语”，却又具有自身鲜明的特色，产生了一系列新的故事类型，为后世志怪小说的发展奠定了基础。本文即以《搜神记》中的报恩故事为中心，探析故事中的报恩主角、报恩方式及其这一主题的来源。     

论历史逻辑

历史逻辑是以历史时间的历时性和共时性统一为基础的概念推论，研究关于叙述史中基本概念之间的意义关系和推论规则。过去、现在和未来是历史逻辑的基本范畴，“过去-现在-未来”三段式是历史逻辑的基本公式，它是概念逻辑推论三段式“正题-反题-合题”在历史逻辑中的具体形式。历史逻辑研究的目的，是根据特定历史时段的特殊性，建构以不同时段概念为逻辑变项的历史逻辑，预见未来的发展，规划现在的实践。     

Pointing Out Differences: Consumer Evaluations of Comparative Information Across Product Types

The purpose of this study is to investigate the impacts of comparative claims across search and experience product types. Data was obtained from 159 Taiwanese college students. Results reveal that comparative claims used in blogs (compared to those in print ads) produce lower counterarguments and consumers more easily accept claims made on a blog. Comparative claims lead to higher brand attitude and purchase intention for search products on the blog; however, noncomparative ads lead to higher brand attitude and purchase intention for experience products on the blog. For both search and experience products, there is no significant difference.     

Evaluation of the long-term cost-effectiveness of IDegLira versus liraglutide added to basal insulin for patients with type 2 diabetes failing to achieve glycemic control on basal insulin in the USA

Background and aims: IDegLira, a fixed ratio combination of insulin degludec and glucagon-like peptide-1 receptor agonist liraglutide, utilizes the complementary mechanisms of action of these two agents to improve glycemic control with low risk of hypoglycemia and avoidance of weight gain. The aim of the present analysis was to assess the long-term cost-effectiveness of IDegLira vs liraglutide added to basal insulin, for patients with type 2 diabetes not achieving glycemic control on basal insulin in the US setting.

Methods: Projections of lifetime costs and clinical outcomes were made using the IMS CORE Diabetes Model. Treatment effect data for patients receiving IDegLira and liraglutide added to basal insulin were modeled based on the outcomes of a published indirect comparison, as no head-to-head clinical trial data is currently available. Costs were accounted in 2015?US dollars ($) from a healthcare payer perspective.

Results: IDegLira was associated with small improvements in quality-adjusted life expectancy compared with liraglutide added to basal insulin (8.94 vs 8.91 discounted quality-adjusted life years [QALYs]). The key driver of improved clinical outcomes was the greater reduction in glycated hemoglobin associated with IDegLira. IDegLira was associated with mean costs savings of $17,687 over patient lifetimes vs liraglutide added to basal insulin, resulting from lower treatment costs and cost savings as a result of complications avoided.

Conclusions: The present long-term modeling analysis found that IDegLira was dominant vs liraglutide added to basal insulin for patients with type 2 diabetes failing to achieve glycemic control on basal insulin in the US, improving clinical outcomes and reducing direct costs.     

浅谈新型建筑材料的发展趋势

针对目前我国建筑材料的发展现状,论述了节约型社会发展新型节能建材的必要性,以及新型墙体材料、保温隔热材料、防水密封材料、装饰装修材料的发展现状及趋势,发展新型节能建筑材料对于落实科学发展观和构建资源节约型社会具有的重要现实意义。     

桑叶配方颗粒物质基准研究

桑叶配方颗粒迄今尚没有统一的质量标准。为提升桑叶配方颗粒的内在质量,对其物质基准评价方法进行了研究。选取具有代表性产地的15批桑叶制备物质基准,采用高效液相色谱法,以芦丁、异槲皮苷、紫云英苷作为评价指标,确定桑叶物质基准的出膏率范围、标志性成分含量及转移率范围,采用超高效液相色谱法,建立物质基准UPLC特征图谱,并对其主要成分进行指认。结果表明:15批物质基准中,芦丁转移率为19.94%～34.05%,异槲皮苷转移率为11.67%～43.58%,紫云英苷转移率为10.73%～43.05%;物质基准特征图谱中,标定了14个共有峰,指认出7个色谱峰,分别为新绿原酸、绿原酸、咖啡酸、芦丁、异槲皮苷、槲皮素-3-O-(6″-O-丙二酰基)-β-D-葡萄糖苷、紫云英苷。所建立的基准评价方法为桑叶配方颗粒质量标准的制定及其后续大规模生产提供了数据基础。     

西北地区农村居民点景观格局指数的尺度效应及其最佳粒度选择分析——以西安市为例

文章以西安市2013年土地利用调查数据为源数据,基于arcgis10.0与Fragstats3.4软件,运用景观空间格局的分析方法,从斑块、类型等2个水平上分析西安市农村居民点景观空间格局粒度效应。结果表明:(1)粒度效应敏感的指数有斑块密度、斑块个数、分离度指数、邻近度指数,粒度效应比较敏感的指数有平均斑块面积、最大斑块指数,粒度效应最不敏感的指数有形状指数、聚集度指数及结合度指数。(2)大致可将上述9种景观指数分为3类:第一类,随着粒度的增大,景观指数值表现为下降的变化趋势;第二类,随着粒度的增大,景观指数值呈逐渐增大的趋势;第三类,随着尺度的增大,具有显著的尺度转折,可预测性差。(3)随着粒度的粗化,农村居民点破碎度降低,优势度增加,形状变得规则,分布趋向分散。该研究区农村居民点最佳尺度范围为60~90m,适宜粒度为90m。     

Airport ownership and financial performance: Evidence from Italy

In the past few decades many countries have increased the presence of various forms of private sector involvement in airport ownership and management. This paper focuses on the financial performance of Italian airport companies. We present empirical evidence separately for two groups where public or private management majority prevails. The main findings indicate that companies with a private majority outperform the others in terms of financial indicators that are related to operating income.