Breaking up is hard to do: the resilience of the rock group as an organizational form for creating music

Though there is a long tradition of band members quitting the group or taking a hiatus, the rock group as an organization to produce music continues to be both popular and economically viable. The research question addressed in this paper is whether or not it is a good idea to quit or take a hiatus from the group. We begin with a discussion of the framework for understanding why groups are formed and why they may be difficult to keep together. We then discuss differences between groups in the decade of the 1960s versus today. We argue that there is something unique about the output of the group even with the changes in the structure of contracts, compensation, and consumer focus on the artist that explain the resilience of the rock band as an organizational form within which to create music. We compare the charting success of bands that have members leave the group with the charting success of the members who left the group. We identified the groups in five representative years: 1965, 1975, 1985, 1995, and 2005. We then analyzed the entire Billboard Hot 100 charting careers of those groups and the artists who quit those groups. Our main finding is that when charting success is divided equally among members, going solo pays off—there is a clear economic rationale because solo acts have greater average charting success than the original bands they started in. The other ensuing side projects: duos, collaborations, and other groups are not as lucrative as the original bands. These findings are valid for members of charting groups from each of the 5 years examined. Despite the difficulties in keeping a rock band together, there are fewer band breakups today and remaining with the group generally results in a longer and more productive charting career. Thus, the rock group remains an important organization for producing contemporary music. However, there remains a compelling incentive to go solo. Superstars may benefit from solo projects, but for the average, non-superstar group member, in many circumstances it is better for the band to stay together if the income is divided equally.     

Research on Educational Media: Half a Century of Doing Things Right Rather Than the Right Thing

This paper critically examines research on the influence of educational media on learning. It argues that much of the supposed benefits of media such as greater concreteness, improved learning performance, more efficient learning and increased retention, among others, are not supported by the evidence thus far. Comparative research on different forms of media, and on media attributes have likewise proved inconclusive. The paper goes on to explore reasons for these findings and urges that future studies should focus on studies with media rather than on media.     

Component skills of text comprehension in less competent Chinese comprehenders

The present study examined the role of verbal working memory (memory span and tongue-twister), two-character Chinese pseudoword reading (two tasks), rapid automatized naming (RAN) (letters and numbers), and phonological segmentation (deletion of rimes and onsets) in inferential text comprehension in Chinese in 31 less competent comprehenders compared with 37 reading comprehension control students and 23 chronological age controls. It was hypothesized that the target students would perform poorly on these cognitive and linguistic tasks as compared with their controls. Furthermore, verbal working memory and pseudoword reading would explain a considerable amount of individual variation in Chinese text comprehension. RAN would have a nonsignificant role in text comprehension. Structural equation analyses and hierarchical multiple regression analyses generally upheld these hypotheses. Our findings support current literature of the role of verbal working memory in reading comprehension found in English. The results, however, suggest differential role of the constructs and the tasks in reading comprehension and provide some answers for comprehension impairment in Chinese students.     

The female athlete triad: components, nutrition issues, and health consequences

This paper, which was part of the International Association of Athletics Federations (IAAF) 2007 Nutritional Consensus Conference, briefly reviews the components of the female athlete triad (Triad): energy availability, menstrual status, and bone health. Each component of the Triad spans a continuum from health to disease, and female athletes can have symptoms related to each component of the Triad to different degrees. Low energy availability is the primary factor that impairs menstrual dysfunction and bone health in the Triad. We discuss nutritional issues associated with the Triad, focusing on intakes of macronutrients needed for good health, and stress fractures, the most common injury associated with the Triad. Finally, we briefly discuss screening and treatment for the Triad and the occurrence of the Triad in men.     

英国医疗服务创新模式分析——以NHS西北创新中心TrusTECH为例

英国医疗服务创新成果显著,值得借鉴.首先简要介绍了英国国家医疗服务体系(NHS)及其创新系统的主要情况,接着以NHS的西北创新中心TrusTECH为例,介绍了它的两种创新模式--商业化创新和服务创新计划,然后通过三个案例(生理学追踪和触发系统、信息管理工作手册和戒烟服务)深入分析了TrusTECH的服务创新流程和特点.最后总结了英国医疗服务创新模式的理论启示,以及对我国医疗服务创新的实践启示,包括培养医护人员创新意识和能力,建立系统化的创新平台,实现平台上的知识共享,以及重视非商业化创新等.     

Student learning performance in online collaborative learning

Education and Information Technologies - Online collaborative learning (OCL) has received significant attention, but the ultimate goal of adopting OCL is neglected, especially in higher education...     

标准参照评估的行动实践 ——以香港中文大学通识教育基础课程为案例

香港特别行政区高校从2015年开始，学生学业评估陆续由常模参照评估转为标准参照评估。本文以香港中文大学通识教育基础课程实施标准参照评估的行动为案例，分析了这项新的学业评估方式在实施中所遇到的问题，讨论了解决方法并提出实施模型。该模型包含评分量表的设计与开发、量表使用、教师意见反馈与量表修改，以及评分之后的集体讨论这一套实施流程。文章最后指出，要保证标准参照评估的有效实施，需建立教师实践共同体。实践共同体的行动包括：教师共同开发评估标准，通过集体讨论对评估标准的含义和使用达成共识，共同审视评估结果，根据评估结果进一步修改和完善评估标准。