说不尽的“女子进城”——论香港爱情传奇中女性与城市的亲和悖离

富有传奇色彩的香港,是港岛内外女作家们敷衍爱情传奇的绝佳场所,在一个个故事背后,隐藏着女作家们对女性命运的疑问和思考。本文以张爱玲、王安忆的文本为主,兼及其他女作家的香港传奇,对现代城市与女性命运的关系作一考察。首先通过文本分析,指出故事中“女子进城”的内在模式,“女子进城”,这里喻指女性在城市中自我肯定与追求欲望满足的行为。第二部分展开对女性与城市关系的两面——亲和性与悖离性的具体评述。第三部分通过追溯神化原型,寻求女性与城市矛盾关系的历史源流     

On tonal pattern perception in monkeys (Cebus apella)

The monkey’s capacity to extract tonal pattern from a sequence of tones was assessed in four subjects that had the benefit of substantial past experience in discriminating, matching, and remembering acoustic stimuli. In Experiment 1, the monkeys failed to transfer their well-established matching behavior to the matching of two structured sequences of tones that differed primarily in tonal pattern, indicating that for them tonal pattern was not a salient feature of the acoustic stimuli. Experiment 2 was an attempt to encourage tonal pattern perception by employing, within a discrimination paradigm, very simple tonal patterns and multiple exemplars of the positive and negative patterns; the transfer design, borrowed from Hulse and Cynx (1985), was a powerful one for revealing tonal pattern perception. Verifying earlier results from our laboratory, there was little in the monkeys’ transfer performance to indicate that they had extracted tonal pattern from the acoustic stimuli. Major discriminative control seemed to be vested in the first tone of each exemplar. This apparent cognitive limitation may be rather general among animals, perhaps reflecting an intimate connection between the capacity for tonal pattern perception and that for acoustically based language.     

建国以来我国公民科学素质建设的基本特征

本文将我国公民科学素质建设的历史放在整个中国社会变革的大背景中加以审视，在其基础上描述和讨论了建国以来我国公民科学素质建设的九大历史特征，以期为新形势下的公民科学素质建设提供借鉴。     

Curriculum Design of a Flipped Classroom to Enhance Haematology Learning

A common trend in higher education is the “flipped” classroom, which facilitates active learning during class. The flipped approach to teaching was instituted in a haematology ‘major’ class and the students’ attitudes and preferences for the teaching materials were surveyed. The curriculum design was explicit and involved four major components (1) the preparation of the students; (2) the weekly pre-class work; (3) the in-class active learning strategies and (4) closing the learning loop using formative quizzes. Each of these components is discussed in detail and was informed by sound pedagogical strategies. Several different sources of information and several freely available software tools to engage the students are discussed. Two iterations are reported here, with improved pass rate for the final examination from 47 to 48 % in the traditional class to 56–65 % in the flipped classroom approach. The majority of students (93 and 89 %) came to the class prepared, after viewing the screencasts and engaged fully with the activities within the face-to-face time. The students perceived that solving case studies (93 %) was the most beneficial activity for their learning and this was closely followed by the production of essay plans (71 %). The majority of students recommended that this approach be repeated the following year (69 and 75 %).     

Pre-service physical education teachers’ Indigenous knowledge,cultural competency and pedagogy: a service learning intervention

In this paper, we investigate the effects of a community- and school-based service learning experience (SLE) on pre-service physical education teachers’ Indigenous knowledge, cultural competency and pedagogy. Informed by the theoretical tenets of Indigenous research methodologies, experiential learning and critical reflection, we examine 55 final-year pre-service physical education teachers’ (age: 21.9 [8.3]; 10.7% low SES; 68% females) cultural learning and competency in a core unit of study with a six-week SLE. Measures of their experiences included reflective journals, multicultural teaching competency scales and focus group interviews. Findings support the design of the SLE, with statistically significant changes in pre-service teachers’ perceptions of their cultural competency (p < 0.001). Pre-service teachers were able to challenge their assumptions about Indigenous students, plan and implement student-centred and culturally relevant pedagogies. Attention is drawn to the design of this SLE and demonstrates the importance of using Indigenous community members and teachers as mentors, which has not been explored in previous SLE studies.     

供应链价值创造的驱动因素及过程研究

供应链与供应链之间的竞争已成为现代竞争的一种重要形式,供应链必须以价值创造最大化为目标来争取市场上的竞争优势。本文分析了供应链价值的定义及其内容和特征,结合价值创造理论提出了供应链价值创造过程模型,并对该模型中驱动因素的影响和价值创造过程的各阶段进行了深入分析。     

基于B/S模式的海量数据报表的实现

本文基于海量数据和网络打印速度之间的矛盾问题,通过几种报表实施方案的对比,提出了利用操纵Excel引擎方式解决网络打印海量数据报表问题的方法。以某煤矿企业考勤综合管理系统的考勤报表为应用背景,研究了基于B/S模式的海量数据报表的实现过程,讨论了客户端与服务器端的设置方式。应用证明该方法切实可行,可以有效地解决网络打印海量数据报表效率低的问题。     

Parsimonious translation models for information retrieval

In the KL divergence framework, the extended language modeling approach has a critical problem of estimating a query model, which is the probabilistic model that encodes the user’s information need. For query expansion in initial retrieval, the translation model had been proposed to involve term co-occurrence statistics. However, the translation model was difficult to apply, because the term co-occurrence statistics must be constructed in the offline time. Especially in a large collection, constructing such a large matrix of term co-occurrences statistics prohibitively increases time and space complexity. In addition, reliable retrieval performance cannot be guaranteed because the translation model may comprise noisy non-topical terms in documents. To resolve these problems, this paper investigates an effective method to construct co-occurrence statistics and eliminate noisy terms by employing a parsimonious translation model. The parsimonious translation model is a compact version of a translation model that can reduce the number of terms containing non-zero probabilities by eliminating non-topical terms in documents. Through experimentation on seven different test collections, we show that the query model estimated from the parsimonious translation model significantly outperforms not only the baseline language modeling, but also the non-parsimonious models.     

An empirical study of query expansion and cluster-based retrieval in language modeling approach

The term mismatch problem in information retrieval is a critical problem, and several techniques have been developed, such as query expansion, cluster-based retrieval and dimensionality reduction to resolve this issue. Of these techniques, this paper performs an empirical study on query expansion and cluster-based retrieval. We examine the effect of using parsimony in query expansion and the effect of clustering algorithms in cluster-based retrieval. In addition, query expansion and cluster-based retrieval are compared, and their combinations are evaluated in terms of retrieval performance by performing experimentations on seven test collections of NTCIR and TREC.     

重大突发公共卫生事件下公众信息获取行为与错失焦虑研究——以新型冠状病毒肺炎疫情为例

[目的/意义] 新型冠状病毒肺炎（COVID-19）暴发流行后,大量信息和舆论铺天盖地而来。准确把握疫情暴发期公众的信息获取行为及特征,分析探索错失焦虑的形成与影响因素,对于重大突发公共卫生事件的应急管理与科学决策具有重要价值。[方法/过程] 基于使用与满足理论、认知心理学等梳理分析错失焦虑、信息获取行为、无聊倾向及情绪之间的关系,构建研究模型。通过问卷调查法采集957份样本数据,利用偏最小二乘法检验模型,结合访谈对结果进行讨论分析。[结果/结论] 重大突发公共卫生事件暴发期,移动新媒体是信息获取的主要渠道,接收推送分享与主动搜寻行为均衡,信息阅读观看的日均耗费时间较长,呈现高频次短时间隔获取特征。疫情关注度显著正向影响错失焦虑与信息获取行为;无聊倾向与错失焦虑之间呈现显著正相关关系。错失焦虑是信息获取的动机性因素,具有显著正向影响作用;错失焦虑较高的个体更容易感染负面情绪;信息获取行为与负面情绪之间有显著正相关关系。