Elite football on artificial turf versus natural grass: movement patterns, technical standards, and player impressions     

Andersson H  Ekblom B  Krustrup P 《Journal of sports sciences》2008,26(2):113-122

The aim of the present study was to examine the movement patterns, ball skills, and the impressions of Swedish elite football players during competitive games on artificial turf and natural grass. Time - motion analyses (36 observations) and technical analyses (16 team observations) were performed and 72 male and 21 female players completed a questionnaire. No differences were observed between artificial turf and natural grass in terms of total distance covered (mean 10.19 km, s = 0.19 vs. 10.33 km, s = 0.23), high-intensity running (1.86 km, s = 0.10 vs. 1.87 km, s = 0.14), number of sprints (21, s = 1 vs. 22, s = 2), standing tackles (10, s = 1 vs. 11, s = 1) or headers per game (8, s = 1 vs. 8, s = 1), whereas there were fewer sliding tackles (P < 0.05) on artificial turf than natural grass (2.1, s = 0.5 vs. 4.3, s = 0.6). There were more short passes (218, s = 14 vs. 167, s = 12) and midfield-to-midfield passes (148, s = 11 vs. 107, s = 8) (both P < 0.05) on artificial turf than natural grass. On a scale of 0-10, where 0 = "better than", 5 = "equal to", and 10 = "worse than", the male players reported a negative overall impression (8.3, s = 0.2), poorer ball control (7.3, s = 0.3), and greater physical effort (7.2, s = 0.2) on artificial turf than natural grass. In conclusion, the running activities and technical standard were similar during games on artificial turf and natural grass. However, fewer sliding tackles and more short passes were performed during games on artificial turf. The observed change in playing style could partly explain the male players' negative impression of artificial turf.  相似文献   

In Memoriam     

Helena Miller 《Journal of Jewish Education》2016,82(2)

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Reflecting Trends in Research and in Wider Society     

Helena Miller 《Journal of Jewish Education》2016,82(3):179-181

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A teacher-report measure of children's task-avoidant behavior: A validation study of the Behavioral Strategy Rating Scale     

Xiao Zhang  Jari-Erik Nurmi  Noona Kiuru  Marja-Kristiina Lerkkanen  Kaisa Aunola 《Learning and individual differences》2011,21(6):690-698

This study aims to validate a teacher-report measure of children's task-avoidant behavior, namely the Behavioral Strategy Rating Scale (BSRS), in a sample of 352 Finnish children. In each of the four waves from Kindergarten to Grade 2, teachers rated children's task-avoidant behavior using the BSRS, children completed reading and mathematics tests, and trained testers rated children's task-avoidant and social-dependent behavior after the test situation. Mothers also rated children's task-avoidant behavior in the last two waves. The results showed that a two-factor model including one factor representing task avoidance and one method factor accounting for wording effects among the negatively phrased items fitted the data best. The scale demonstrated strict measurement invariance across all four waves and satisfactory convergent and discriminant validity. Teacher-reported task avoidance was negatively associated with performance in reading and mathematics. The results suggest that the BSRS is a reliable, valid, and developmentally suitable instrument.  相似文献   

Personal project appraisals, academic achievement and related satisfaction: A prospective study     

Katariina Salmela-Aro  Jari-Erik Nurmi 《European Journal of Psychology of Education - EJPE》1997,12(1):77-88

The impact of achievement project appraisals on academic achievement, satisfaction and test anxiety, as well as on subsequent project appraisals, was examined. First, 303 university students filled in the Little’s Personal Project Analysis (PPA) at the beginning of their studies. Six months later, 170 of them were examined according to their anxiety, and expected and received grades in an examination situation. One year after the first measurement, they filled in an academic satisfaction scale, and two years later, the PPA. Data on academic achievement was gathered from university archives. The results: analysed by structural equation models (SEM), showed that those who appraised their achievement projects in positive terms and as easy to achieve had higher levels of academic achievement and related satisfaction than those who appraised achievement projects as stressful and non-attainable. In turn, the more satisfied they were with their achievements, the more they appraised their achievement projects as easy to achieve two years later. Furthermore, the more the subjects appraised their achievement projects in negative terms, the more anxiety they reported before the examination.  相似文献   

Students’ Differential Text Production in the Regulative Context of the Classroom     

Ana M. Morais  Helena Antunes 《British Journal of Sociology of Education》1994,15(2):243-263

The research reported in this article is focused on the regulative context of the classroom and attempts to analyse the differential text production by students with different backgrounds (social class, race) and submitted to three different pedagogic practices. These practices, differing in power and control relations, required from the students specific socio‐ affective dispositions. The study explores the extent to which children possessed the specific coding orientation at the level of a given regulative pedagogic practice and also the underlying reasons. Bernstein's conceptual instruments of pedagogic code and also of recognition and realization rules were used to develop the analysis.  相似文献   

Educational epistemologies and methods in a more-than-human world     

Helena Pedersen  Barbara Pini 《Educational Philosophy and Theory》2017,49(11):1051-1054

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How students perceive teachers’ nonverbal and verbal communication at agricultural universities in Austria,Slovenia and Albania     

Marija Klopčič  Renata Bažok  Helena Virić Gašparić  Karmen Erjavec 《The Journal of Agricultural Education and Extension》2018,24(5):473-483

Purpose: This study attempts to close the research gap created by the fact that existing studies neglect the problem of how effectively agricultural professors from different European countries communicate. The aim is to identify similarities and differences in the numbers of agricultural professors perceived by students as engaging in verbal and nonverbal immediacy communication.

Methodology: An online survey was conducted among students of agricultural universities from Austria, Slovenia and Albania.

Findings: The results show that professors of agriculture from Austria, Slovenia and Albania should generally not be satisfied with their own communication patterns and should thus try to improve their communication. The result also reveals cultural differences in the shares of agriculture professors employing different communication patterns in Austria, Slovenia and Albania. Compared to Austrian and Slovenian students, their Albanian peers perceive that most of their professors use nonverbal immediacy communication. According to Austrian students, the majority of their professors use verbal immediacy. On the contrary, Albanian students assessed that some of their professors employ verbal immediacy.

Practical Implications: The results show the professors of agriculture should improve the way they communicate to students. In particular, the Albanian professors should improve their verbal communication especially in terms of providing timely and quality feedback to students.

Theoretical implications: The study reveals differences in immediacy communication among countries (Austria, Slovenia and Albania) which the scientific literature considers to have a high-context culture.

Originality/Value: Given that no study has yet examined how students perceive professors’ communication in different European countries, this research helps understand the characteristics of agricultural professors’ communication.  相似文献   

Accreditation and Quality Assurance in Europe     

Helena Sebkova 《Higher Education in Europe》2002,27(3):239-247

This article provides comprehensive information about new developments in the field of quality evaluation in Europe. It focuses on the most important international documents adopted and signed by the European authorities responsible for higher education--the Sorbonne and the Bologna Declarations and the Prague Communique´. It briefly analyzes the follow-up activities of the Bologna process initiated by the academic community of European higher education institutions, their students and their various organizations, and describes certain important consequences linked to them. Some background information about several European countries is given so as to highlight real situations.  相似文献   

Anti-bullying procedures for schools in Ireland: principals’ responses and perceptions     

Mairéad Foody  Helena Murphy  Paul Downes  James O’Higgins Norman 《Pastoral Care in Education》2018,36(2):126-140

The role of the principal is imperative in creating a school climate that nurtures differences and equality at the same time. Policy and legislation in Ireland dictates the responsibility of school principals in preventing and intervening in issues relating to bullying. The current research investigates the extent to which principals consider the impact of bullying on their students and the strategies they take to combat it in their schools. We consider how principals respond to bullying and what supports they feel are missing for them to adhere to relevant policy. A sample of 918 principals from a range of schools across Ireland completed an online survey. The results demonstrated some positive actions by principals such as the provision of anti-bullying policies. However, they also document areas that need more action such as increased access to counsellors and appointing a specific staff member to deal with and tackle bullying in each school. Guidance from the Department of Education and Skills in Ireland on the development and provision of an anti-bullying programme is called for. Results are discussed in light of the current Anti-Bullying Procedures established by the Department of Education and Skills and the Action Plan for Bullying 2013.  相似文献