秦始皇兵马俑博物馆室内含硫颗粒物的SEM-EDX研究

本文对秦始皇兵马俑博物馆室内采集的长短期降尘、大气悬浮颗粒物和彩绘漆层进行了SEM-EDX研究,在大气悬浮颗粒、短期和长期降尘中,含硫颗粒的粒径分别为0.9～22.8μm、1.0～29.0μm和1.2～37.7μm,多为石膏与粘土或石英以内部混合的状态存在。降尘中的附着型絮状硫酸钙多于大气悬浮颗粒物中,显示降尘和大气中的二氧化硫发生了累进的化学反应。彩绘漆层表面的坑和裂隙附近观察到原位生长的硫酸钙晶体,显示漆层材料或降尘颗粒物与大气二氧化硫之间的酸化学反应,可能是彩绘漆层表面受侵蚀形成微小坑和裂隙的原因之一。     

ORCID Identifiers: Planned and Potential Uses by Associations,Publishers, and Librarians

The presenters gave an overview of ORCID and examples of how organizations are integrating ORCID identifiers (iDs) into their systems. In its twin roles as a scholarly association and a publisher, the Modern Language Association is exploring how best to integrate ORCID iDs into the publication process and into its member services. Librarians are well-positioned to partner with new and established scholars in accurately capturing their record of scholarship, and to work with internal partners such as research offices and graduate schools. As a member of the University of North Carolina system, East Carolina University researchers are interested in the potential for ORCID profiles to supplement information in the statewide profile system REACH NC. Texas A&M University is one of nine institutions recently selected to participate in an ORCID Adoption and Integration Program (funded by the Sloan Foundation) for their proposal to integrate ORCID iDs into their open-source Vireo Electronic Thesis and Dissertation management system, the university’s institutional repository, and their VIVO profile system.     

Managing mandated educational change

This paper explores teachers' perspectives on the management of mandated educational change in order to understand how it may be managed more effectively. A case study of teachers' responses to the introduction of a quality teaching initiative in two New South Wales schools found that while some teachers described the strong negative impact of this externally initiated approach, others had taken charge of the required change and worked creatively with it. This suggests that it is possible for mandated change to be managed in positive ways, and an alternative approach is explored. Implications for governments, schools and teachers are discussed.     

The state of evidence for social and emotional learning: A contemporary meta-analysis of universal school-based SEL interventions

This article provides a systematic review and meta-analysis of the current evidence for universal school-based (USB) social and emotional learning (SEL) interventions for students in kindergarten through 12th grade available from 2008 through 2020. The sample includes 424 studies from 53 countries, reflecting 252 discrete USB SEL interventions, involving 575,361 students. Results endorsed that, compared to control conditions, students who participate in USB SEL interventions experienced significantly improved skills, attitudes, behaviors, school climate and safety, peer relationships, school functioning, and academic achievement. Significant heterogeneity in USB SEL content, intervention features, context, and implementation quality moderated student experiences and outcomes. Strengths and limitations of this evidence and implications for future USB SEL research, policy, and practice are discussed.     

The Influence of Stigma on College Students' Attitudes Toward Online Video Counseling and Face‐to‐Face Counseling

The difference in attitudes toward online video counseling and face‐to‐face counseling and the relationship between stigma and these attitudes were investigated among a sample of 588 college students. Attitudes toward face‐to‐face counseling are more favorable compared with those toward online video counseling. However, self‐stigma does not influence attitudes toward online video counseling to the same extent as face‐to‐face counseling. Services delivered through online video counseling may be beneficial for those experiencing higher levels of stigma.     

Simultaneous discrimination learning: Stimulus interactions

Although considerable attention has been given to interactions between events serving as the positive (S+) and negative (S−) stimuli in successive discriminations, there has been little study of similar interactions in simultaneous discriminations. We propose that in a simultaneous discrimination, given what is typically relatively little experience with the consequences of responding to the S−, some of the value of the S+ transfers to the S− with which it was paired. Furthermore, the mechanisms responsible for this transfer of value appear to be the higher order Pavlovian association between the S− and the S+, as well as within-event associations between them. Although in typical simultaneous discriminations, negative value does not appear to transfer from the S− to the S+, when adequate experience is provided with the S−, contrast typically develops, reducing the value of the S− (negative contrast) and enhancing the value of the S+ (positive contrast). This model of stimulus interactions has implications not only for simple simultaneous discrimination learning, but also for research using combinations of discriminations (e.g., transitive inference in animals and humans). This model may also have implications for a number of human social psychological phenomena.