科学博物馆与科学中心——发展历史及其根源①

本文以科学博物馆和科学中心的发展阶段为线索,综述了几个世纪以来科学传播的历史发展,阐述了科学实践如何嵌入到博物馆的展览实践之中并从中发展起来,以及关于科学在社会中的地位的观念变化如何在科学博物馆和科学中心得到反映,还展现了日益受到关注的科学传播如何在科学博物馆和科学中心层面体现出以公众需求为本。     

Runaway Train: Ex Machina and the Rebel Girls

Courtship is a fertile setting for culturally defined strategies. A common form of competition is criticizing the other group for being inadequate mates. Stories about romance between human beings and non-human participants allow such criticism. Movies about men finding mechanical partners are common. Non-human females are seen as more satisfactory than women, especially when women are transforming their roles to be less subservient.     

Questioner or question: Predicting the response rate in social question and answering on Sina Weibo

With the noted popularity of social networking sites, people increasingly rely on these social networks to address their information needs. Although social question and answering is potentially an important venue seeking information online, it, unfortunately, suffers from a problem of low response rate, with the majority of questions receiving no response. To understand why the response rate of social question and answering is low and hopefully to increase it in the future, this research analyzes extrinsic factors that may influence the response probability of questions posted on Sina Weibo. We propose 17 influential factors from 2 different perspectives: the content of the question, and the characteristics of the questioner. We also train a prediction model to forecast a question's likelihood of being responded based on the proposed features We test our predictive model on more than 60,000 real-world questions posted on Weibo, which generate more than 600,000 responses. Findings show that a Weibo's question answerability is primarily contingent on the questioner versus the question. Our findings indicate that using appreciation emojis can increase a question's response probability, whereas the use of hashtags negatively influences the chances of receiving answers. Our contribution is in providing insights for the design and development of future social question and answering tools, as well as for enhancing social network users’ collaboration in supporting social information seeking activities.     

Assessment,Grade Level and Learning

Researchers have identified assessment as a very crucial influence on the learning strategies adopted by students. The present study carried out on Secondary 2, Secondary 4, and Junior College 2/Pre-University 3 students shows that the Singapore students did not favour the Surface Approach in their learning of English and Mathematics. The nature of the discipline and the cognitive demands of the examinations carried considerable importance for students in their choice of learning strategies. Despite the heavy emphasis on excelling in examinations, students did not rely solely on surface and achieving strategies to attain their goals.     

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.