邓小平改革开放理论是电大办学的指导思想

邓小平改革开放理论是电大办学的指导思想,电大教育要持续发展,就必须深刻领会邓小平“解放思想、实事求是“的理论精髓,在“开放、求实“四字上下功夫做文章,开拓进取,求实创新,再造电大辉煌.     

Muscle activation sequencing of leg muscles during linear glide shot putting

In the shot put, the athlete’s muscles are responsible for generating the impulses to move the athlete and project the shot into the air. Information on phasic muscle activity is lacking for the glide shot put event and therefore important technical information for coaches is not currently available. This study provides an electromyography (EMG) analysis of the muscle activity of the legs during shot put. Fifteen right-handed Irish national level shot putters performed six maximum effort throws using the glide shot put technique. EMG records of eight bilateral lower limb muscles (rectus femoris, biceps femoris, medial- and lateral-gastrocnemius) were obtained during trials. Analysis using smooth EMG linear envelopes revealed patterns of muscle activity across the phases of the throw and compare men and women performers. The results showed that the preferred leg rectus femoris, the preferred leg biceps femoris and the non-preferred leg biceps femoris play important roles in the glide technique, with the total duration of high volumes of activity between 34 and 53% of the throw cycle. A comprehensive understanding of movement and muscle activation patterns for coaches could be helpful to facilitate optimal technique throughout each of the key phases of the event.     

Counter from the cathedra: Democratic School Workers Association redefining teachers’ political agency in Finland 1973–1989

Finnish school teachers are unlike their colleagues in many countries, for their ethos and skills have traditionally formed the basis for a profession which has been very loyal to the state and to the changing educational ideologies of the government. Critical historical periods of wars and social revolutions have, however, produced – to a small degree – different kinds of tendencies. This article discusses the political agency of comprehensive and upper secondary school teachers by looking at a particular point of rupture in the Finnish “master narrative” of a neutral and impartial teacher image. As an example of a counter-narrative, the paper presents a small leftist teacher association called the Democratic School Workers Association (Demko) which existed between 1973 and 1989. Demko’s manifesto texts are analysed with the help of A.J. Greimas’ actantial model in order to find the possible kind of political agency that is constructed for teachers. The analysis shows a major change between the 1970s and 1980s. The early Demko narrative draws from the vocabulary of the neo-leftist student movement, inviting progressive teachers to join the “common struggle”. Demko aims at lobbying the more established political actors, whereas individual agency is shackled by the ideals of monolithicity and unanimity. In the 1980s, along with the fading of societal radicalism, Demko’s narrative evolves into a more polyphonic space for identity debates. Political agency is transferred from the collective to individuals who are supposed to critically reflect Demkoian ideals against their everyday praxis. All in all, Demkoian narrative is interpreted as having enriched the gamut of “possible discourses” in the era of the early Finnish comprehensive school. With its distinctively socio-political orientation, Demko tested the boundaries of the political agency of Finnish teachers.     

Is knowledge management losing ground? Developments among Icelandic SMEs

This paper presents findings from a survey on knowledge management (KM) in small and medium-sized firms (SMEs) in Iceland conducted in 2007 and was a follow-up of a similar survey from 2004. The paper analyses whether the extent, strategy and effects of KM in SMEs in Iceland has changed in the period. The main conclusion is that KM is not losing ground among SMEs in Iceland. Identical numbers of firms used KM in 2004 and 2007, and slightly more firms were examining the need in 2007 than 3 years earlier. It is, however, of great concern that many more firms have no KM strategy in 2007 than 2004. More managers in SMEs need to consider the strengths and weakness of KM, and to implement a formal KM strategy. Only 24% of Icelandic firms have a KM programme in place, and most of them have invested in simple information and communication technologies. The most common way of sharing tacit knowledge in Icelandic firms is encouraging face-to-face communication. The surveys indicate that benefits of KM programmes are quite positive even in SMEs. Accordingly, the research findings indicate that KM could improve organisational and managerial as well as financial aspects of SMEs. This research was carried out in only one country, and is based on a questionnaire. Its results should therefore be interpreted with care.     

Predicting Employee Turnover from Friendship Networks

Employees (n=40) at a fast-food restaurant were surveyed about characteristics of their position and their level of satisfaction. Employees were then asked to report with whom they regularly communicated inside and outside the workplace and to indicate how close they were to employees with whom they were linked. Employee turnover was measured after three months had elapsed. A goal of the research was to replicate a model of employee turnover that predicts employees more central in their social network to be less likely to leave, and to test a social support explanation of the centrality model. The results indicated that employees who reported a greater number of out-degree links with friends were less likely to leave. The number of in-degree links with friends did not significantly predict turnover, and neither did network links with peers. Friendship prestige, measured by the number of in-degree links, was strongly correlated with relational closeness and amount of time spent with employees outside the workplace.     

Inoculating Against Pro-Plagiarism Justifications: Rational and Affective Strategies

Student plagiarism continues to threaten academic integrity. This investigation assessed whether an inoculation message strategy could combat university plagiarism by protecting student attitudes against pro-plagiarism justification arguments. Additionally, we sought theoretical confirmation of previous findings on involvement and accessibility in inoculation, examined the effects on vested interest, and evaluated matching and mismatching strategies in terms of affect- and rationality-based inoculation treatment messages and subsequent attack messages. A total of 225 students participated in three sessions spanning six weeks. Results indicated that none of the inoculation treatments conferred resistance as measured in attitude toward plagiarism, but all treatments enhanced involvement and attitude accessibility, and the fear- and rationality-based treatments enhanced vested interest. Additionally, fear-based treatments derogated the source of the message. Results also suggest that a matching strategy is superior with both affect- and rationality-based attack messages, such that inoculation treatments are most effective when using the same argument bases (e.g., affective or rational) as the attack message. These results offer guidance for crafting communication campaign strategies to reduce the occurrence of student plagiarism offenses.     

Students’ experiences of learning with iPads in upper secondary school – a base for proto-TPACK

This research focuses on Finnish students’ (n?=?84) experiences of using personal iPads in their studies through 3 years of upper secondary schooling. It is based on results from one of the first schools in Finland where all the new students were provided with iPads at the start of their studies. Data consists of: (i) 127 short stories written by students about how they would advise a new teacher and a new student to use iPads in teaching and learning, and (ii) four group discussions on the same topics. Qualitative thematic analysis of the data was guided by the TPACK framework. Results suggest that: (i) teachers’ pedagogical approaches changed little in response to the new devices and remained largely teacher-centred, and (ii) students do not have the confidence to radically change learning styles to take advantage of the affordances of the devices. The value that iPads add to teaching and learning is difficult to quantify because of the complex and often conflicting factors involved. Overall, the findings imply that teachers’ TPACK is generally resistant to change and students’ proto-TPACK is insufficiently developed to initiate change. An approach that systematically develops both students’ and teachers’ TPACK is advocated.     

Muscle activity in sprinting: a review

The use of electromyography (EMG) is widely recognised as a valuable tool for enhancing the understanding of performance drivers and potential injury risk in sprinting. The timings of muscle activations relative to running gait cycle phases and the technology used to obtain muscle activation data during sprinting are of particular interest to scientists and coaches. This review examined the main muscles being analysed by surface EMG (sEMG), their activations and timing, and the technologies used to gather sEMG during sprinting. Electronic databases were searched using ‘Electromyography’ OR ‘EMG’ AND ‘running’ OR ‘sprinting’. Based on inclusion criteria, 18 articles were selected for review. While sEMG is widely used in biomechanics, relatively few studies have used sEMG in sprinting due to system constraints. The results demonstrated a focus on the leg muscles, with over 70% of the muscles analysed in the upper leg. This is consistent with the use of tethered and data logging EMG systems and many sprints being performed on treadmills. Through the recent advances in wireless EMG technology, an increase in the studies on high velocity movements such as sprinting is expected and this should allow practitioners to perform the analysis in an ecologically valid environment.     

The Rise of Modern Sport in Fin de Siècle São Paulo: Reading Elite and Bourgeois Sensibilities,the Popular Press,and the Creation of Cultural Capital

In the period between 1890 and 1910, British sport flourished in a rapidly modernizing Brazilian city. São Paulo boomed as a coffee export centre for the global market, growing into the second largest metropolis in Brazil. New businesses and industries developed and thousands of immigrants from around the world migrated to the expanding South American city. Along with the flow of new residents came new ideas, new attitudes, and new lifestyles. British sporting customs particularly attracted the attention of São Paulo’s wealthy elites and expanding middle classes who saw in these habits the potential to advertize their commitment to modern ideals of civilization and order. The new British-style sporting clubs that sprang up in São Paulo conferred the cultural capital that the leadership castes needed to gain and maintain their hegemony in the city’s rapidly changing social landscape. São Paulo’s press circulated these new sensibilities and revealed that the city’s sporting enthusiasts both reproduced Westernized norms and re-signified athletic sensibilities to fit Brazilian social patterns.