Dual-task effect on postural control in high-level competitive dancers

Abstract

We investigated balance in 33 competitive dancers (17 females, 16 males) and 22 controls (17 females, 5 males) (age 16–27 years) on a force plate in two conditions: single task (quiet stance) and dual task (with a concurrent mental task). Balance was evaluated using centre-of-pressure shift (sway) variability, mean speed, frequency, and sample entropy. The effect of the dual task in the medio-lateral plane was comparable in both groups, decreasing sway variability (P < 0.05) and increasing mean speed (P < 0.001), frequency, and sample entropy (P < 0.001), showing that the participants effectively increased the level of automaticity. In the antero-posterior plane, the dual task also increased sway frequency and sample entropy (P < 0.01) in dancers without affecting their standing performance. In contrast, postural control in non-dancers was vulnerable to reduced cognitive investment, which adversely interfered with baseline performance. There were very high correlations between sway sample entropy and frequency in each group, plane, and task (r = 0.92–0.98, P < 0.001), indicating that both parameters may measure the same characteristic of postural control and that higher sway frequency may play an important role in protecting stability in dual tasking. The postural control of dancers and non-dancers appears to be similar, although dancing seems to facilitate the increased level of automatic control in the antero-posterior plane.     

Traditional vs. innovative uses of computers among mathematics pre-service teachers in Serbia

This study examined pre-service teachers’ intentions to use computers in traditional and innovative teaching practices in primary mathematics classrooms. It extended the technology acceptance model (TAM) by adding as external variables pre-service teachers’ experience with computers and their technological pedagogical content knowledge (TPCK). Data collected from 226 participants revealed that the proposed model had a good fit for both traditional and innovative uses of computers. Structural equation modelling suggested that the established TAM variables, together with TPCK and experience, were significant determinants of pre-service teachers’ intentions to use computers in teaching mathematics at both levels. The most dominant determinant of behavioural intention was TPCK, followed by attitude. The proposed model explained 22.7% of the variance in the use of computers in traditional teaching practices and 27.6% of the variance in the use of computers in innovative teaching practices. The implications for mathematics teaching are discussed in the final section.     

Education policymaking in Serbia through the eyes of teachers,counselors, and principals

Numerous educational reforms have been initiated in Serbia since 2000. The aim of this study was to examine education policymaking in Serbia in order to provide policymakers and stakeholders with recommendations on how to minimize pitfalls and increase success of future educational endeavors. In the study, we utilized the education policy cycle heuristic to analyze formation, implementation, and evaluation of three major education policies in Serbia: in-service training of teachers (INSET), school development planning (SDP), and inclusive education (IE). Examining three reforms simultaneously enabled us to identify major characteristics of Serbian policymaking, regardless of the reform content. We also relied on educational change literature, so that we could assess complex contexts of reforms. Finally, considering the importance of school staff during implementation, we examined education policymaking in Serbia through the eyes of over 1,800 teachers, counselors, and principals. The results point out to dissatisfaction of school staff with all aspects of the policymaking in Serbia and with the social and education context. Reforms appear to be undertaken in a similar pattern across different reforms. The findings imply that a thorough examination of both the policymaking in Serbia and communication, organization, and administration within the education system itself is in order.     

Transnational accreditation for public schools: IB,PISA and other public–private partnerships

ABSTRACT

This article examines a particular type of public–private partnership (PPP) that is rarely studied in comparative educational policy studies: one in which a government funds privately run international schools. The aim of this PPP is to enrich and thereby improve the regular curriculum or to the quality of education in public schools. As the exponential growth of International Baccalaureate (IB) illustrates, such forms of PPP have increased significantly over the past few years. The authors show that transnational accreditation holds a special appeal for the middle class that is committed to cosmopolitanism, international mobility, and global citizenship. However, international standards schools such as IB are not alone with advancing a transnational accreditation of their educational programmes. Symbolically, Programme in International Student Assessment also provides a transnational accreditation, albeit not on individual education programmes but rather on entire educational systems. The article examines the reasons for the popularity of this type of PPP, analyses the interaction between the private and public education sectors, and investigates how governments explain, and what they expect from, the close cooperation with private education providers.     

Whose feedback? A multilevel analysis of student completion of end-of-term teaching evaluations

Student evaluation of teaching (SET) is now common practice across higher education, with the results used for both course improvement and quality assurance purposes. While much research has examined the validity of SETs for measuring teaching quality, few studies have investigated the factors that influence student participation in the SET process. This study aimed to address this deficit through the analysis of an SET respondent pool at a large Canadian research-intensive university. The findings were largely consistent with available research (showing influence of student gender, age, specialisation area and final grade on SET completion). However, the study also identified additional influential course-specific factors such as term of study, course year level and course type as statistically significant. Collectively, such findings point to substantively significant patterns of bias in the characteristics of the respondent pool. Further research is needed to specify and quantify the impact (if any) on SET scores. We conclude, however, by recommending that such bias does not invalidate SET implementation, but instead should be embraced and reported within standard institutional practice, allowing better understanding of feedback received, and driving future efforts at recruiting student respondents.     

Postdigital cross border reflections on critical utopia

Abstract

Critical pedagogy is in crisis. To address this crisis, this paper reinvents Paulo Freire’s concept of utopia in and for our age of the Anthropocene. Understood as a system, postdigital critical utopia provides us with normative foundations and returns agency from invisible data and algorithms to human beings. Understood as a process, postdigital critical utopia unmasks the myth of neutrality and adds an important element of myth, religion, ritual, and faith. Understood as an orientation, postdigital critical utopia needs to be balanced by dystopia, integrate environmental considerations, and act with a combination of epistemical curiosity and hope. Theoretical and practical attempts at introducing advanced technology to reimagine new utopias now take place in media theory, hacking, activism, and small pockets of the academia. To transcend its own crisis and remain relevant, contemporary critical pedagogy movement must urgently join these attempts. However, catching up with technological development is only the tip of a much larger iceberg. In order to take the lead in processes of modernization, critical pedagogy movement needs to actively develop utopian visions and techno-administrative systems which may support these visions.     

Posthumanism,open ontologies and bio-digital becoming: Response to Luciano Floridi’s Onlife Manifesto

In The Onlife Manifesto: Being Human in a Hyperconnected Era Luciano Floridi and his associates examine various aspects of the contemporary meaning of humanity. Yet, their insights give less thought to the political economy of techno-capitalism that in large measure creates ICTs and leads to their further innovation, development and commercialization. This article responses to Floridi’s work and examines political economy of the blurred distinction between human, machine and nature in the postdigital context. Taking lessons from early history of the Internet across the Eastern and the Western Bloc, it examines ideological underpinnings of development of information and communication technologies. The paper points towards the postdigital challenge of the rising importance of biological sciences, their mutual connection with information sciences, and the society at large. It introduces the concept of bio-informational capitalism, and closely examines the relationships between biology and information. Based on authors’ previous works the chapter introduces the concepts of homo economicus and homo collaborans, and claims that their mutual differences do not make a case for a dualist philosophy—instead, the two concepts should be understood as opposite poles of a continuum. However, it shows that the biological challenge is not a mere continuation of our existing (research) questions, and that it introduces new postdigital ways of understanding our reality. In conclusion, the chapter calls for developing a new, postdigital language of inquiry, which reinvents the digital challenge and invents its relationship to biology.