冲泡条件对辣木茶中稀土浸出率的影响研究

本文采用ICP-MS方法测定辣木茶的稀土总量,以及不同冲泡条件下稀土的浸出率。实验结果表明,辣木茶的稀土浸出率随冲泡时间的延长而升高,且增长逐渐趋于平缓。此外,随冲泡次数的增加,样品的稀土浸出率基本上呈减小趋势。五次冲泡后辣木茶中稀土的累计浸出率为18.15%。虽然原茶中稀土含量较高,但由于稀土氧化物主要残留于茶渣中,总体上处于比较低的暴露水平,对饮茶人群的健康影响较低。     

液相色谱-原子荧光光谱联用法测定水产干制品中甲基汞含量不确定度分析

本文对液相色谱-原子荧光光谱联用法测定水产品中甲基汞含量进行了不确定度分析,分析了整个测试过程中不确定度的来源,并对各不确定度分量进行了计算。水产品中甲基汞的含量为0.00111mg/kg,扩展不确定度为0.000 122 mg/kg(k=2)。     

Financial investor sentiment and the boom/bust in oil prices during 2003–2008

From both theoretical and policy perspectives, it is important to understand if financial speculation contributes to the boom/bust in oil prices during 2003–2008. In this paper, we disentangle the effects of financial speculation from those of economic fundamentals by focusing on exogenous changes of financial speculation in oil markets identified by changes in financial investor sentiment. Furthermore, we focus on a quasi-experiment setting, and investigate both sentiment-driven overvaluation of oil prices and subsequent mispricing correction. Our findings suggest that financial speculation might have contributed to the 2003–2008 boom/bust in oil prices.     

Internal branding experiences in the financial services sector in South Africa

There is little doubt that employees are critical to the delivery of the service brand. Although existing models propose methods of internal branding, very little is known about the actual corporate experience. Academics around the world have spent decades probing internal marketing, its subset—internal branding—and the impact of internal branding on service delivery. This research focuses on how organisations execute internal branding, revealing critical success factors as well as obstacles encountered. The research was conducted in five large organisations in the financial services sector in South Africa. Each organisation is a highly recognisable consumer brand; the oldest of which is nearing 200 years of being in business and the youngest is just 20 years old. This research adds to the body of knowledge regarding organisational practice of internal branding. Key themes are identified, three of which are largely absent from extant models and literature.     

转型期的中国城市贫困问题及治理

城市贫困问题是实现全面建成小康社会的重大障碍之一,认识城市贫困问题依赖于"贫困识别-机理-反贫困"的系统研究。我国城市贫困人口众多,贫困发生率敏感性高,呈现地域分布显著差异显著、结构复杂化和低龄化、贫富差距严重、空间聚居不断边缘化的特点。社会结构和个体行为两个方面的原因导致了城市贫困问题的产生,对城市的经济、社会、政治发展都产生了不利影响。尽管当前的反贫困政策取得了一定成效,但仍然存在不能满足贫困者最低层次的多种需求,忽视了对贫困群体能力开发的问题。新时期的城市贫困治理应当在完善社会保障体系、加强城市基础设施建设、开展职业教育培训、鼓励有能力的贫困群体积极参加工作等方面展开。     

中国竹藤类产品出口潜力研究——基于引力模型的实证分析

基于引力模型,运用2007~2014年8年间中国对24个竹藤类产品贸易伙伴国的面板数据进行实证分析,结果表明:APEC的有关贸易安排对中国竹藤类产品贸易流量的影响较大,美国、日本、澳大利亚等APEC成员国是中国排名前3位的竹藤类产品进口国;贸易潜力测算结果显示中国对这3个国家均存在贸易不足,竹藤类产品贸易还有很大潜力可挖。基于此,提出应进一步加强中国与APEC成员国之间的合作交流,积极推进中国对美国、日本、澳大利亚等APEC成员国竹藤类产品出口向多样化和高质量化的方向发展,尽量选择与中国要素禀赋差异小的国家开展竹藤类产品的贸易等建议。     

Factors influencing theme park visitor brand-switching behaviour as based on visitor perception

With the development of theme parks, which represent a multi-million-pound industry worldwide, research investigating the factors affecting theme park visitor brand-switching behaviour is an important method for improving theme park competitiveness. In the present work, models and research hypothesis are constructed based on visitor perception, and the survey data are collected and analysed to assess the hypothesis and to revise the conceptual model in this paper. The results indicate that there are seven factors influencing visitor brand-switching behaviour: ‘visitor variety-seeking', ‘visitor satisfaction', ‘switching cost', ‘perceived value', ‘competitor attraction', ‘theme park image' and ‘visitor involvement'. The perceived value and visitor satisfaction strongly influence brand-switching behaviour as intermediate variables. Visitor variety-seeking and competitor attraction are positively related to visitor brand switching behaviour, whereas the other five factors are negatively related to visitor brand-switching behaviour.     

中小企业融资难的新解读

中小企业融资难问题已成为制约我国市场经济体制改革的重要因素。对主要发达国家经验的梳理,可以得到解决该问题的一般规律。基于我国中小企业发展的特点、金融系统结构失衡、政府职能错位三个方面的解读,可以发现我国中小企业融资难问题具有特殊性。本文提出的建议,包括构建"银政合作"模式,推进金融体制改革,创建中小型金融机构。