Spectroscopic methods for the analysis of celadonite and glauconite in Roman green wall paintings

One set of samples from wall paintings of the X^th Regio of Italy containing green colours was analysed exploiting different spectroscopic techniques, aiming to identify the pigments used. The possibility to distinguish between glauconite and celadonite, the most common green pigments used in such paintings, was of particular interest. Samples of celadonite from Monte Baldo and glauconite from Belgium were considered as standard materials for comparison. The results obtained using FTIR, EDS, AAS, Colorimetry, Raman and EPR spectroscopies were compared for the identification of the green pigments.     

难以把握的兼并后领导艺术

近年来,在收购或兼并后整合两个公司已变成一种高度复杂化的操作。尽管出现了“科学的”进步,高管们仍对自己收购艺术的能力深感沮丧。     

Regional creative industries policy-making under New Labour

This article analyses creative industries policy in the English regions under New Labour (1997–2010). It examines the ideas behind regional creative industries policies (RCIPs) and their implementation. Focusing on the activities of the English regional development agencies, the primary bodies responsible for the implementation of creative industries policy in the British regions, the article places regional cultural policy during the New Labour period within its broader political, social and economic contexts. It explains and evaluates New Labour's RCIPs, arguing that creative industries policy at the regional level changed over the course of New Labour's three terms of office, becoming increasingly economistic at the expense of a more social democratic vision of regional equality and democracy. We identify three issues that were problematic for New Labour's RCIP: a reliance on the idea of “clusters”, commercialisation and shifting regional governance.     

The effect of success or failure on self-efficacy and task persistence of conduct-disordered children

Twenty-four children with conduct disorders were familiarized with a pattern-matching task, and their self-efficacy expectations for this task were assessed. Subjects were then given either “Success” or “Failure” feedback for a series of similar problems, and their self-efficacy was reassessed. Finally, task persistence was evaluated by allowing subjects to attempt as many additional pattern-matching problems as they wished, with all subjects receiving failure feedback. Results indicated that, although the two groups of subjects were initially similar, the success group's self-efficacy was significantly higher following feedback. The success group also attempted significantly more problems while later receiving failure feedback, and there was a significant positive correlation between task persistence and the second self-efficacy rating. These findings were related to Bandura's self-efficacy theory and to educational programming for conduct-disordered children.