Evolution 2.0. The Unexpected Learning Experience of Making a Digital Archive

Studies in the history of science and education have documented that the reception and understanding of evolutionary theory is highly contingent on local factors such as school systems, cultural traditions, religious beliefs, and language. This has important implications for teaching evolution in primary and secondary schools. No universal strategy can be applied in overcoming the barriers of learning that exist and that are part of the practical and daily life in classrooms all over the world. In light of this, a huge challenge is to make high standard teaching materials fit to specific target audiences readily available. As more and more schools require teachers to use low cost or free web-based materials, in the research community we need to take seriously how to facilitate that demand in communication strategies on evolution. This article addresses this challenge by presenting the learning experience of making a digital archive of Danish Darwin editions that marked the beginnings of a series of public engagement and teaching initiatives including, among other things, comprehensive new websites, exhibits, lecture series, television documentaries, and a computer game.     

大升温：固定/移动电话的融合

在一个以专业术语和缩写词闻名的行业中，目前再没有什么比固定/移动电话的融合（FMC）更热门的了。FMC是一长串融合名称中最新的一个。这些融合当中最著名的是1990年代末期的“数字大融合”，即所有媒体变成数字化，因而使整个世界实现数字化。     

Comparative study between fully tethered and free swimming at different paces of swimming in front crawl

Tethered swimming is a method often used to measure or enhance the physical and technical resources of swimmers. Although it is highlighted that the technique used in tethered swimming is probably different from that used in free conditions, there are few comparative studies on this subject. The current study aims to compare fully tethered and free swimming based on kinematic hand parameters (orientation, velocity and acceleration of the hand, sweepback and angle of attack), which are known to act directly on the generation of propulsive forces. The results show that there are significant differences during the stretch and catch phases but less during the insweep and upsweep phases. Tethered swimming makes it possible to estimate the propelling forces generated by the hand in free swimming at distance and middle-distance paces, but overestimates it at sprint pace. However, in view of the modifications of the kinematic parameters, it should not be used under repeated conditions of use, such as for the development of swimmers’ capacity.     

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Mentoring of Media

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Reciprocal peer assessment as a learning tool for secondary school students in modeling-based learning

The aim of this study was to investigate how reciprocal peer assessment in modeling-based learning can serve as a learning tool for secondary school learners in a physics course. The participants were 22 upper secondary school students from a gymnasium in Switzerland. They were asked to model additive and subtractive color mixing in groups of two, after having completed hands-on experiments in the laboratory. Then, they submitted their models and anonymously assessed the model of another peer group. The students were given a four-point rating scale with pre-specified assessment criteria, while enacting the peer-assessor role. After implementation of the peer assessment, students, as peer assessees, were allowed to revise their models. They were also asked to complete a short questionnaire, reflecting on their revisions. Data were collected by (i) peer-feedback reports, (ii) students’ initial and revised models, (iii) post-instructional interviews with students, and (iv) students’ responses to open-ended questions. The data were analyzed qualitatively and then quantitatively. The results revealed that, after enactment of the peer assessment, students’ revisions of their models reflected a higher level of attainment toward their model-construction practices and a better conceptual understanding of additive and subtractive color mixing. The findings of this study suggest that reciprocal peer assessment, in which students experience both the role of assessor and assessee, facilitates students’ learning in science. Based on our findings, further research directions are suggested with respect to novel approaches to peer assessment for developing students’ modeling competence in science learning.     

Oxidant-antioxidant status in colorectal cancer patients—Before and after treatment

Erythrocyte antioxidant glutathione and malondialdehyde levels in erythrocytes and plasma glutathione S-transferase levels were estimated in patients with colorectal cancer and compared to controls. Further, the patients underwent four weeks of radiotherapy with adjuvant chemotherapy. The same parameters were estimated after four weeks of radiotherapy and compared with pretreatment levels. It was observed that there was a decrease in erythrocyte glutathione and malondialdehyde levels in patients with colorectal cancer compared to controls, but not in case of GST. However, after chemoradiotherapy, there were no statistically significant differences in all the parameters studied.     

From ‘Closing the Gap’ to an Ethics of Affirmation. Reconceptualising the Role of Early Childhood Services in Times of Uncertainty

In this article, I offer a critical enquiry into the landscape of European and international policy approaches and strategies towards young children, their families and communities in a rapidly changing global context. Early childhood has attracted unprecedented attention among policy makers and international bodies in the last two decades. The apparent consensus about the ‘need to increase participation in early childhood education and care’ has been framed mainly by a ‘human capital’ discourse that promises high returns on investment in early intervention, and social cohesion through increased educational achievement. While members of the early childhood research and practice community have welcomed (or actively contributed to) this argument in order to raise visibility and support, questions arise whether policies and practices grounded in this logic are appropriate and make a difference in the lives of children and families, especially those from marginalised backgrounds. Drawing on experiences from recent European and international research projects, this article argues that early childhood policies that aim at ‘closing the gap’ between children from marginalised and dominant groups in society are grounded in a logic of integration and assimilation into an assumed normality that no longer exists. Instead, marginalisation, hyper-diversity, inequality and fragmentation have become the defining feature of all societies. Against this background, the article explores possibilities and strategies for developing ‘competent systems’ for all children, families and communities that are based on democratic practices, recognition and affirmation.     

Assessment options in higher education

This article evaluates an initiative to introduce assessment choice within a taught unit on an undergraduate healthcare programme as a means of addressing poor performance, especially for those students diagnosed with dyslexia. Students’ perceptions of the assessment experience were sought via the use of two focus group interviews (n = 16). The article describes the effect the assessment experience had on students’ stress levels, individual learning styles and achievement. Students’ performance improved and statistical analyses indicated parity between the assessment methods offered with similar performance profiles between students with and without dyslexia. The conclusion reached is that while the introduction of assessment options may be time consuming for staff to develop, the benefits of an enhanced student‐centred approach to assessment may be well worth this investment in time. Although a limited study owing to the small sample size, the results should be of interest to those academics who are concerned with assessment and its impact on students’ achievement.     

Emerging collaborative and cooperative practices in 1:1 schools

In this article, the authors explored how laptops used in 1:1 classrooms affect cooperation and collaboration practices. Based on an observational time study, the authors found that the most common activity in 1:1 classrooms is group work using the computer. They also found that, despite what the concept 1:1 alludes to about one student working with one computer, most laptop use takes on other forms such as two students working with one computer (1:2) or two students working together using two laptops (2:2). The findings reported in this article about the various different collaboration arrangements have implications for both research and practice. For practice, because teachers can arrange activities based on an awareness of the different student–laptop constellations that emerge when students are given a laptop. Research is likewise informed about the various group work constellations and can build on this knowledge for further analysis of the pros and cons with the different collaborative forms.