Modeling Growth in Electronic Learning Environments Using a Longitudinal Random Item Response Model

In educational environments, monitoring persons' progress over time may help teachers to evaluate the effectiveness of their teaching procedures. Electronic learning environments are increasingly being used as part of formal education and resulting datasets can be used to understand and to improve the environment. This study presents longitudinal models based on the item response theory (IRT) for measuring persons' ability within and between study sessions in data from web-based learning environments. Two empirical examples are used to illustrate the presented models. Results show that by incorporating time spent within- and between-study sessions into an IRT model; one is able to track changes in ability of a population of persons or for groups of persons at any time of the learning process.     

Complicating ‘student behaviour’: exploring the discursive constitution of ‘learner subjectivities’

When educators consider ‘student behaviour’, they usually think about ‘problem behaviour’ such as disruption or defiance. This limited and limiting view of ‘student behaviour’ not only fails to acknowledge children as educational actors in a wider sense, but also narrowly positions educators as either in control or out of control of their classroom. Mainstream educational psychology’s responses to ‘challenging behaviour’ point educators to numerous ways to prevent its occurrence, through, for example, changing their disciplining approaches and techniques. However, much of the advice directed at improving student behaviour fails to interrogate the core notion of ‘student behaviour’ itself, as well as the conceptual baggage that it carries. The focus is squarely on eliminating ‘problem behaviour’ and often resorts to a pathologisation of students. Meanwhile, when considering ‘student behaviour’ through a Foucauldian post-structuralist optic, behaviour emerges as something highly complex – as spatialised, embodied action within/against governing discourses. In this opening up, it becomes both possible and critical to defamiliarise oneself with the categorisation of ‘challenging behaviour’ and to interrogate the discourses and subject positionings at play. In this paper, we pursue this task by asking: what happens with the notion of ‘behaviour’ if we change focus from ‘fixing problems’ to looking at the discursive constitution of ‘learner subjectivities’? What does it become possible to see, think, feel and do? In this exploration, we theorise ‘behaviour’ as learning and illustrate the constitution of ‘learner subjectivities’. Drawing on two case scenarios, we explore how children accomplish themselves as learners and how this accomplishment links the production of subjectivity and embodied action, and illustrate how ‘student/child behaviour’ appears significantly different to what mainstream educational psychology would have us see.     

Greed and Rapacity in Twilight and Vampire Academy: Kleinian Models of Maturation for Young Adult Readers

Children's Literature in Education - This paper considers the Twilight novels alongside the Vampire Academy books, as young adult readers regularly invoke these series as touchstones...     

Boarding schools: A longitudinal examination of Australian Indigenous and non-Indigenous boarders’ and non-boarders’ wellbeing

Improving educational outcomes for Indigenous Australian students is a key strategy to helping Indigenous people reach their full potential. This has resulted in well-intentioned efforts by Australian educators and governments to ensure Indigenous children have positive school experiences. However, Indigenous students still lag behind their non-Indigenous counterparts in educational outcomes. This is particularly so for Indigenous students living in rural and remote parts of Australia where educational opportunities are limited, especially in high school. One solution to this problem has been to enrol these students in boarding schools in urban and metropolitan centres. While research on the success of boarding schools for Indigenous students is scarce, what little that does exist is not encouraging. The focus of this research was to examine the effects of boarding for Indigenous (n = 11) and non-Indigenous students’ (n = 158) wellbeing (N = 1423) in two large private boys’ schools. Participating students aged 12–18 years old completed a survey measuring wellbeing constructs on two occasions, 12 months apart. Non-Indigenous boys were generally higher in wellbeing compared with Indigenous boys. There was also evidence of improved social wellbeing beyond that of non-Indigenous boarders over time. Overall, while evidence of merit was weak, boarding schools may benefit their Indigenous students’ development in social wellbeing.     

Automatic thematic classification of election manifestos

We digitized three years of Dutch election manifestos annotated by the Dutch political scientist Isaac Lipschits. We used these data to train a classifier that can automatically label new, unseen election manifestos with themes. Having the manifestos in a uniform XML format with all paragraphs annotated with their themes has advantages for both electronic publishing of the data and diachronic comparative data analysis. The data that we created will be disclosed to the public through a search interface. This means that it will be possible to query the data and filter them on themes and parties. We optimized the Lipschits classifier on the task of classifying election manifestos using models trained on earlier years. We built a classifier that is suited for classifying election manifestos from 2002 onwards using the data from the 1980s and 1990s. We evaluated the results by having a domain expert manually assess a sample of the classified data. We found that our automatic classifier obtains the same precision as a human classifier on unseen data. Its recall could be improved by extending the set of themes with newly emerged themes. Thus when using old political texts to classify new texts, work is needed to link and expand the set of themes to newer topics.     

基于专利合作网络的北京国际科技合作分析

以美国专利商标局申请库收录的2001-2013年北京国际科技合作专利为数据源,运用文献计量和社会网络的方法对北京国际科技合作专利的逐年发展情况,主要合作国家、重点科研机构、活跃人才以及热点领域的合作情况作出全面的分析和系统的解读,揭示了北京国际科技合作专利快速增长等现状特征,探讨了当前北京国际科技合作在知识产权共享、企业创新能力等方面的问题,从政府的支持力度和要素流动等角度提出了建议对策。     

A deep vein thrombosis caused by 20209C>T mutation in homozygosis of the prothrombin gene in a Caucasian patient

Introduction:

Additional nucleotide substitutions in the 3′-untranslated region of prothrombin gene could explain some thrombotic events and also adverse pregnancy outcomes. We describe the first case of a homozygous 20209C>T mutation as the cause of deep vein thrombosis in a Spanish patient.

Case and methods:

The 56-year-old male patient with a partial tear of the Achilles tendon developed calf (tibial) deep vein thrombosis after immobilization and was treated with an anticoagulant. To determine if the deep vein thrombosis was of genetic origin, a peripheral blood DNA sample was analysed for the presence of the three most frequent mutations associated with thrombotic events: factor V Leiden (1691G>A), prothrombin (20210G>A) and methylene tetrahydrofolate reductase (677C>T). The presence or absence of the normal allele of prothrombin could not be determined using the PTH-FV-MTHFR StripAssay (Vienna Lab).

Results:

Comprehensive analysis showed that the patient had a variant interfering with the polymerase chain reaction product, we sequenced the entire prothrombin gene and found that the patient had a homozygous C>T mutation at position 20209; this interfered with the polymerase chain reaction product, which needs a C at this position to be able to bind to the wild-type probe present in the test strip.

Conclusion:

The homozygous 20209C>T mutation and the presence of the mutation 677C>T in heterozygosity explained the patient’s deep vein thrombosis because the combination of mutations would increase the risk of thrombosis. Suitable genetic counselling should be provided to the patient and first-degree relatives as it important to detect prothrombin gene variants that could increase risk for thrombotic events.     

论文献的科学评价功能

论文献的科学评价功能娄策群ＡＢＳＴＲＡＣＴＳｉｎｃｅｐｕｂｌｉｃａｔｉｏｎｓａｒｅｒｅｓｕｌｔｓｏｆｒｅｓｅａｒｃｈａｎｄｔｈｅｉｒｍｅ－ｄｉａ，ｔｈｅｙｒｅｆｌｅｃｔｖａｒｉｏｕｓａｓｐｅｃｔｓｏｆｓｃｉｅｎｃｅａｎｄｔｈｕｓｈａｖｅｔｈｅｆｕｎｃ...     

陈鹤琴办园理念的新实践

鼓楼幼儿园是陈鹤琴先生1923年创办的。80多年来幼儿园遵循陈老的办固理念，在幼儿教育中国化、科学化、时代化上进行了不懈的探索，并在努力探索新时期幼儿教育工作的规律和特点等方面有所成效。