Teachers' views of teenage sexual morality

This paper examines the discourses of morality drawn on by secondary school teachers in England to describe their attitudes to pupils' developing sexual identities. Although teachers recognized their own formative role in the sexual socialization of pupils and identified homophobic attitudes among boys, they were ambivalent about how far they could intervene in homophobic bulling in school. However, they failed even to recognize the widespread misogynistic bullying of girls by boys as a problem. Teachers expressed anxieties about girls' ownership of sexual knowledge and sexual agency while perceiving boys to be sexually immature and less ‘responsible’. We explore possible reasons for teachers' neglect of misogynistic bullying and their labelling of girls as sexually precocious. We argue that the discourses shaping teachers' attitudes to sexual morality and sex education were largely embedded in a form of liberal individualism that impeded them from confronting the structurally reproduced relations of gender domination.     

Toward a modular,integrated, miniaturized,and portable microfluidic flow control architecture for organs-on-chips applications

Microfluidic organs-on-chips (OoCs) technology has emerged as the trend for in vitro functional modeling of organs in recent years. Simplifying the complexities of the human organs under controlled perfusion of required fluids paves the way for accurate prediction of human organ functionalities and their response to interventions like exposure to drugs. However, in the state-of-the-art OoC, the existing methods to control fluids use external bulky peripheral components and systems much larger than the chips used in experiments. A new generation of compact microfluidic flow control systems is needed to overcome this challenge. This study first presents a structured classification of OoC devices according to their types and microfluidic complexities. Next, we suggest three fundamental fluid flow control mechanisms and define component configurations for different levels of OoC complexity for each respective mechanism. Finally, we propose an architecture integrating modular microfluidic flow control components and OoC devices on a single platform. We emphasize the need for miniaturization of flow control components to achieve portability, minimize sample usage, minimize dead volume, improve the flowing time of fluids to the OoC cell chamber, and enable long-duration experiments.     

Measuring the Welfare Effects of Public Television

Based on an explorative case study in the Netherlands, the authors developed a methodology to assess the welfare effects of public service broadcasting. This methodology consists of a combination of revealed and stated preferences, using readily available data for all programs broadcast in the evening in 2011. The results cover both individual programs and an aggregate level. Because the data used encompass both public and commercial programs, the analysis allows for comparisons between these.     

Students' views on the efficiency of instruction: An exploratory survey of the instructional metacognitive knowledge of university freshmen

Students have conceptions about the relationship between instructional interventions and learning or, in other words, students have instructional metacognitive knowledge. In this study, the efficiency of instructional interventions has been investigated as a specific object of students' instructional metacognitive knowledge. By means of a survey, conceptions about the efficiency of various instructional interventions of 488 freshmen in educational sciences and psychology have been investigated. Two research questions directed this exploratory study: (1) How do students assess the efficiency of instructional interventions; and (2) Do differences in gender, educational background, and/or subject of study affect evaluations of the efficiency of instructional interventions. Results show that respondents regard regular instructional interventions at the university directed toward, or supporting, surface-level processing and reproduction to be highly efficient. The use of technology is conceived as inefficient by these students. The limited number of differences between groups of students also suggests students' conceptions to be both consistent and robust.The study illustrates the need to investigate instructional metacognitive knowledge as distinct from other forms of metacognitive knowledge, and raises questions about the major components and structure of instructional metacognitive knowledge and individual differences in it. The findings suggest the need for the elaboration of a framework to describe instructional interventions.     

Teaching and testing mathematical problem solving by offering optional assistance

Transfer capability is usually defined as theability to apply acquired knowledge and skillsin novel situations.The experiment reported here concerned transferin mathematics education. An experimental programme was constructed, based on strengtheningthe connection of strategic and domain specificknowledge and offering hints during teaching aswell as during testing.Subjects were first graders from secondaryeducation in the Netherlands, from two schools,two classes each. Students from these fourclasses were randomly allocated either to theexperimental or the control group.The experimental computer-supported teachingprogramme was offered once a week during sixweeks; the control group received regularmathematics instruction.After controlling for the effects of thecovariates intelligence, mathematics aptitudeand anxiety, it was shown that the experimentalsubjects performed significantly better on aposttest than subjects in the control group.The results suggest that the experimentalinstruction method enhances mathematics problemsolving ability more strongly than traditionalinstruction. Upon closer examination thiseffect appears to be restricted to subjectsalready relatively high in intelligence andmathematical ability. This finding is notuncommon in intervention research, and issometimes referred to as the Matthew orthe fan-spread effect.     

Vocabulary learning from reading: examining interactions between task and learner related variables

In the field of second and foreign language learning, how various task characteristics affect language learning has been the focus of many recent studies. Much of this research examined the relationship between task characteristics and task performance without fully taking into account learner related variables. The present study aimed to assess task complexity and sequence in relation to the learner related variables drawn from the social cognitive perspective of self-regulated learning, i.e. self-efficacy beliefs and frequency of learning strategy use, as they were applied to two versions of vocabulary learning from reading tasks. The tasks designed for the present study were based on the componential framework for second language task design. With tasks and task sequence counterbalanced, 146 first-year university students (mean age?=?18.59 years) were randomly assigned to one of four groups. Results reveal a significant effect of task sequence on vocabulary learning self-efficacy beliefs, frequency of learning strategy use and task performance, and a significant interaction effect of sequence with task complexity. Findings are discussed in terms of complex interactions between task and learner factors.     

Portfolio as a means of promoting autonomous learning in teacher education: a quasi-experimental study

Background:?The predominant dissertation model used in teacher education courses in Flanders is the ‘literature study with practical processing’. Despite the practical supplement, this traditional model does not fit sufficiently well with autonomous learning as the objective of modern teacher education dissertations.

This study reports on the development of a portfolio model to serve as an alternative to the current model and afford greater opportunities for autonomous learning.

Purpose:?This quasi-experimental study aimed to examine the usefulness of portfolio as a means of promoting autonomous learning.

Sample:?Two teacher education courses collaborated, involving 174 teacher education students and 44 supervisors in this study.

Design and methods:?Using a pre- and post-test quasi-experimental design, we examined whether the use of portfolio as a dissertation model has a greater effect on the students' capacity for autonomous learning than the literature study with practical processing, using three existing questionnaires. Differences between the experimental group and the control group were revealed by means of covariance analysis.

Results:?Our research shows that the portfolio model results in students acquiring greater metacognitive knowledge. It also appears that students only get the chance to use their metacognitive skills when supervisors give them sufficient autonomy. However, supervisors experience loss of control and therefore tend to restrict students' autonomy.

Conclusions:?This leads us to the paradox of autonomous learning: students will only learn autonomously when they are given the freedom to learn autonomously. Supervisors need to transfer learner control.     

Effects of contrasting colour patterns of the ball in the volleyball reception

The effects of three different colour patterns on the surface of volleyballs (versus that of a plain white ball) on the behaviour of a reception player were examined by presenting sidespin volleyball serves. Expert (n = 10) and novice (n = 10) volleyball players intercepted volleyballs projected straight at them or at an initial angle of 9.5° outwards but eventually curving towards the players' original position. In the latter trajectories, players generally took one or more steps laterally before returning to the landing position of the ball. These excursion patterns were significantly more pronounced with the white balls than the coloured balls. Differences between balls of different colour combinations were also observed. The first finding supports the thesis that next to a prospective type of control, such as on-line maintenance of a certain spatiotemporal relationship between the player and the ball, properties of the ball itself allow prediction of the future path of the ball. Differences between types of colour patterns are explained within the framework of the between-colours wavelength contrasts of each type of ball.     

Self-efficacy, task complexity and task performance: Exploring interactions in two versions of vocabulary learning tasks

The present study aimed for better understanding of the interactions between task complexity and students?? self-efficacy beliefs and students?? use of learning strategies, and finally their interacting effects on task performance. This investigation was carried out in the context of Chinese students learning English as a foreign language in a university in China. The participants were 78 second-year university students (mean age?=?20.9?years). This study used a repeated-measures design with task complexity as the within-participants factor, and task sequence as the between-participants factor. Results indicated a significant task effect for self-efficacy beliefs and task performance, and a significant interaction effect of sequence with task complexity for learners?? self-efficacy beliefs in learning for both task versions, learners with higher self-efficacy beliefs had better task performances than learners with lower self-efficacy beliefs. The results also revealed a strong correlation between self-efficacy and the use of learning strategies for both tasks.     

The Netherlands in the European Community: A cultural area of modest proportions with a few large publishing companies with international interests

As European economic integration proceeds, governments will have to address the cultural issues that they have thus far neglected. In the Netherlands, special, concerns include a decline in the level of reading and of book sales, the need for low VAT rates and fixed book prices, and the forcing out of small producers. At the same time, integration offers opportunities in the maintenance of local markets, multicultural and language education, and harmonization of copyright laws. Joost Kist has been active in publishing since 1953. He was vice-president of the Executive Board of Wolters Kluwer and retired from its board in January 1990. He remains a consultant to the board and special assistant to the chairman. Dr. Kist is a member of the Council for Libraries and Information Services and author ofElectronic Publishing: Looking for a Blueprint and many articles on the subject of new media. Wolters Kluwer was formed in 1988 by the merger of the Wolters Noordhoff and Kluwer groups. In May 1990 they purchased J.B. Lippincott from HarperCollins. Their turnover for the last fiscal year was just over $1 billion, with pretax income of $123.5 million.