A new footwear technology to promote non-heelstrike landing and enhance running performance: Fact or fad?     

Janet H. Zhang  Aislinn J. C. McPhail  Winko W. An  Waqar M. Naqvi  Daniel L. H. Chan  Ivan P. H. Au 《Journal of sports sciences》2017,35(15):1533-1537

This study sought to compare the kinetics and kinematics data in a group of habitual shod runners when running in traditional running shoes and newly designed minimalist shoes with lug platform. This novel footwear design claims to simulate barefoot running and reduce energy loss during impact. We compared footstrike angle (FSA), vertical average (VALR) and instantaneous (VILR) loading rates, energy loss and initial vertical stiffness between two shoe conditions. Runners demonstrated a decreased FSA while running in minimalist shoes with lug platform than traditional shoes (P = 0.003; Cohen’s d = 0.918). However, we did not observe a landing pattern transition. VALR and VILR between two footwear conditions showed no significant difference (P = 0.191–0.258; Cohen’s d = 0.304–0.460). Initial vertical stiffness (P = 0.032; Cohen’s d = 0.671) and energy loss (P = 0.044; Cohen’s d = 0.578) were greater when running in minimalist shoes with lug platform. The results show that minimalist shoes with lug platform reduce the FSA but may not lead to a landing pattern switch or lower vertical loading rates. Interestingly, the new shoe design leads to a greater energy loss than traditional running shoes, which could be explained by a higher initial vertical stiffness.  相似文献   

The Freedom to Teach     

Ivan J. K. Dahl 《The Teacher Educator》2013,48(2):23-26

Maintaining that academic freedom is necessary if schools are to function effectively, Dr. Dahl presents lucid arguments to support his position.  相似文献   

Force–velocity property of leg muscles in individuals of different level of physical fitness     

Ivan Cuk  Dragan Mirkov  Aleksandar Nedeljkovic  Milos Kukolj  Dusan Ugarkovic 《Sports biomechanics / International Society of Biomechanics in Sports》2016,15(2):207-219

The present study explored the method of testing muscle mechanical properties through the linear force–velocity (F–V) relationships obtained from loaded vertical jumps. Specifically, we hypothesised that the F–V relationship parameters depicting the force, power, and velocity of the tested muscles will differ among individuals of different physical fitness. Strength trained, physically active, and sedentary male participants (N = 10 + 10 + 10; age 20–29 years) were tested on maximum countermovement and squat jumps where manipulation of external loads provided a range of F and V data. The observed F–V relationships of the tested leg muscles were approximately linear and mainly strong (median correlation coefficients ranged from 0.77 to 0.92; all p < 0.05), independently of either the tested group or the jump type. The maximum power revealed higher values in the strength trained than in the physically active and sedentary participants. This difference originated from the differences in F-intercepts, rather than from the V-intercepts. We conclude that the observed parameters could be sensitive enough to detect the differences among both the individuals of different physical fitness and various jump types. The present findings support using loaded vertical jumps and, possibly, other maximum performance multi-joint movements for the assessment of mechanical properties of active muscles.  相似文献   

Professional development of kindergarten teachers in Croatia – a personal choice or an obligation     

Ivana Visković 《Early Years: An International Journal of Research and Development》2018,38(3):286-297

The quality of educational processes with children of preschool age and long-term educational outcomes are largely related to the work quality of teachers. Lifelong learning and professional development, as predictors of quality, need to be regarded as an ongoing task for kindergarten teachers. Findings of an empirical study of Croatian kindergarten teachers’ views (N = 388) on professional development point to a link between teachers’ intrinsic motivation and their professional development. Motivation explains 46.87% of the variance Personal commitment to professional development. A slight positive correlation was found between the level of formal education and the frequency of professional development (r = .216, p < .01). Although the level of education of kindergarten teachers is not a good independent predictor, it affects readiness to self-fund professional development (p < .01). As for the significance of conferences as a form of professional development, participants of the study identified them as an effective opportunity (M = 4.68, SD = .52), promoting both quality practices (M = 4.69, SD = .54) and exchange of experiences (M = 4.68, SD = .56). The length of participants’ professional work experience affects their assessment of the significance of practitioners’ networking as a way of improving the quality of everyday practices (F = 1.43, p < .05).  相似文献   

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   

Grant‐maintained Heads’ Reflections on Opting Out     

Jonathan Cauldwell  Ivan Reid 《Educational studies》1996,22(2):245-260

This article summarises the views of 222 grant‐maintained (GM) school's head teachers’ experience of, and reasons for, their schools opting out of local authority control. The survey was conducted on the first 499 secondary schools to go GM. The article investigates issues such as admissions, finances and also the effects of GM status (GMS) on the relationships with, and roles of, local education authorities, the Department for Education, parents and governors. The article provides an overview of moves to GMS and highlights prior aims and reflections.  相似文献   

Serbia and Montenegro: the catalytic effects of higher education     

Gordana Zindović‐Vukadinović 《Higher Education in Europe》2004,29(3):329-341

Brain drain has been a long‐lasting phenomenon. It existed in the former Yugoslavia, and was affected by various factors, from political through economic ones to the attractive offers for advanced studies and work in scientific institutions or firms in developed countries. Some ad‐hoc analyses were made concerning individual groups or periods, but there was no systematic monitoring and no complete and all‐inclusive data. It is however possible to draw a picture showing trends in the – mostly one‐way – movement towards highly developed countries.

Therefore, the current study has a mosaic character, which – we hope – shall throw some light and try to explain brain drain in the academic circles of Serbia and Montenegro (former SFRY). As the Republic of Serbia represents the largest component part (about 90 percent), most of the data is about Serbia.  相似文献   

THE FORGOTTEN MINORITY     

Ivan Z. Holowinsky 《Review of Education, Pedagogy & Cultural Studies》2013,35(1):69-73

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Work-related burnout syndrome in special education teachers working with children with developmental disorders – possible correlations with some socio-demographic aspects and assertiveness     

Vesna Jovanović  Jasmina Karić  Goran Mihajlović  Tamara Džamonja-Ignjatović 《欧洲特需教育杂志》2013,28(5):692-701

ABSTRACT

The aim of this research was to examine the levels of burnout syndrome dimensions in special education teachers and correlations with some socio-demographic characteristics, job characteristics, and levels of assertiveness. The research included 225 special education teachers from Serbia (82% were women, 18% were men, with the average age of 42.51 ± 9.23 years). Research instruments included Maslach Burnout Inventory, Rathus Assertiveness Schedule, and a socio-demographic questionnaire. There were differences in all burnout dimensions in relation to types of students’ special needs. Higher levels of burnout symptoms were observed in teachers working with children with motor skill disorders. The assertiveness scores had a significant negative correlation with emotional exhaustion and depersonalisation, and a positive correlation with a lack of accomplishment. The results obtained may help in the planning of the adequate preventative measures for improving the mental health of those professionals.  相似文献   

The science(s) of adult education     

Nikola Pastuović 《International Journal of Lifelong Education》2013,32(4):273-291

This article deals with the problems of forming a scientific system for adult education. The first part contains different concepts of sciences of education in developed countries, with a special emphasis on the difference between pedagogy as ‘practical theory’ and the sciences of education than can withstand meta‐scientific criteria. This is followed by a survey of the educological system of the knowledge of education, and the scientific and non‐scientific knowledge of adult education are contrasted. To enable us to distinguish unambiguously between scientific and non‐scientific knowledge the survey contains some major criteria for determining whether a discipline is a science or not. In this context andragogy, as well as pedagogy, are defined as ‘technological’ disciplines with the task of applying the principles discovered by the sciences of adult education: the educational psychology of adults, the sociology of adult education, the economics of adult education and the educational anthropology. In other words, andragogy is the ‘praxiology of adult education’, i.e. the science of applying scientific knowledge about adult education in the practice of that education. Andragogy could become ‘the general science of adult education’ and acquire a supra‐technological character if it grew into a science of the effectiveness of systems of adult education. In that case andragogy would study the interaction between the elements of the system as well as the interaction between these elements and the subsystems of the educational environment.  相似文献