Agricultural extension in Latin America: current dynamics of pluralistic advisory systems in heterogeneous contexts     

Laurens Klerkx  Fernando Landini  Horacio Santoyo-Cortés 《The Journal of Agricultural Education and Extension》2016,22(5):389-397

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Self‐efficacy,school resources,job stressors and burnout among Spanish primary and secondary school teachers: a structural equation approach     

Fernando Doménech Betoret 《教育心理学》2009,29(1):45-68

This study examines the relationship between school resources, teacher self‐efficacy, potential multi‐level stressors and teacher burnout using structural equation modelling. The causal structure for primary and secondary school teachers was also examined. The sample was composed of 724 primary and secondary Spanish school teachers. The changes occurring in the Spanish teacher role in the last decade were taken into account to select job stressors. The results obtained revealed that external (school support resources) and internal (management classroom self‐efficacy and instructional self‐efficacy) coping resources have a negative and significant effect on job stressors. In turn, job stressors have a positive and significant effect on teachers’ burnout considering it as both a unidimensional and multidimensional construct. Furthermore, the hypothesised structure of burnout dimensions revealed that emotional exhaustion plays a key role in explaining Spanish school teachers’ burnout. Practical implications of these findings are discussed.  相似文献   

On the geography of accountability: Comparative analysis of teachers’ experiences across seven European countries     

J?rg Müller  Fernando Hernández 《Journal of Educational Change》2010,11(4):307-322

Different forms of accountability are part of educational restructuring across Europe. This article will focus on the different national configurations of accountability from teachers’ point of view. A comparative perspective will enlarge on commonalities and differences between teachers’ experiences in Spain, Portugal, Ireland, England, Sweden, Finland, and Greece. The results obtained demonstrate, on the one hand, that educational policy regarding state-initiated standardization and accountability measures vary highly within the EU. On the other hand, it emerged that the oft-cited discussion between a beneficial professional versus a simplistic performance-oriented form of accountability misses the general disbelief of teachers towards all forms of accountability. Although their work has been increasingly rendered visible over the recent past, teachers pinpointed the mismatch between monitored needs and available resources to effectively transform their educational practice.  相似文献   

Restructuring teachers’ work‐lives and knowledge in England and Spain     

Jörg Müller  Caroline Norrie  Fernando Hernández  Ivor Goodson 《Compare》2010,40(3):265-277

This article explores the restructuring of education in England and Spain. Against a presumably homogeneous global streamlining of educational systems according to competition‐driven goals, the comparison of teachers’ work‐lives and professional knowledge evidences a variety of experiences under‐represented in discourses on global restructuring. Our argument highlights how in England political reforms have worked their way deep into the working lives of professionals, giving rise to a ‘managerial’ model of professionalism, whereas in Spain reforms are more loosely coupled with teachers’ work, favoring a ‘social service’‐oriented model. However, despite the different professional ideals, teachers uniformly stressed the challenges they face were predominantly due to broader social transformations for which policy reforms provided few if any remedies. Our study emphasizes the variety of educational reforms and teachers’ experiences in the European context and argues further educational change should be bound to the historical trajectory and the concrete needs of the professionals in question.  相似文献   

Effect of 6-weeks WBVT on the behaviour of the lower limb muscle fibres during vertical jumping     

Jacobo Ángel Rubio-Arias  Domingo Jesús Ramos-Campo  Paula Esteban  Fernando Martínez  José Fernando Jiménez 《Journal of sports sciences》2018,36(4):398-406

The purpose of the current study was to examine the effect of 6 weeks of whole body vibration training (WBVT) on body composition, muscle activity of the gastrocnemius and vastus lateralis, gastrocnemius muscle architecture (static and dynamic) and ground reaction forces (performance jump) during the take-off phase of a countermovement jump in young healthy adult males. A total of 33 men (23.31 ± 5.62 years) were randomly assigned to a whole body vibration group (experimental group, EG_WBVT: n = 17; 22.11 ± 4.97 years) or a control group (CG: n = 16; 24.5 ± 6.27 years). The total duration of the intervention phase (WBVT) was 6 weeks with a frequency of 3 sessions per week. Statistically significant differences were observed (P ≤ 0.05) between pre- and post-test in the power peak (Δ 1.91 W · kg^?1; P = 0.001), take-off velocity (0.1 cm · s^?1; P = 0.002) and jump height (Δ 0.4 cm; P = 0.002) for EG_WBVT. There were no statistically significant differences in any of the body composition and muscle architecture variables. Moreover, no significant differences were found between EG_WBVT and CG nor changes in muscle activity during take-off phase of the gastrocnemius and vastus lateralis pre- versus post-training. This study suggests that a 6-week WBVT programme with increasing intensity improves jump performance but does not alter muscle activity nor muscle architecture in healthy young men.  相似文献   

Relationship between exchange block time in swim starts and final performance in relay races in international championships     

Jose M. Saavedra  Antonio García-Hermoso  Yolanda Escalante  Ana M. Dominguez  Raul Arellano  Fernando Navarro 《Journal of sports sciences》2013,31(19):1783-1789

Abstract

The purpose of this study was to investigate the association between relay exchange block time and final performance in 4 × 100-m and 4 × 200-m freestyle and 4 × 100-m medley relays as a function of sex (men and women) and classification (medallists and non-medallists) in international competitions. Nineteen international competitions covering a 13-year period (2000–2012) were analysed retrospectively. The data corresponded to a total of 827 team relay histories (407 men, 420 women). Kruskal–Wallis and Mann–Whitney tests were performed to determine any differences by sex, classification, and event. Similarly, the relationship between the exchange block times and final performance was examined by means of a Pearson correlation analysis. In the three events, the men’s exchange block times were shorter than those of the women (η² = 0.049–0.109; P < 0.001). The exchange block time was especially relevant for the women’s relay medallists in the 4 × 100-m freestyle (r = 0.306, P = 0.021) and 4 × 100-m medley (r = 0.385, P = 0.011), while for men the relationship was clearer for the non-medallists. These results suggest that the exchange block time should be considered as one of the performance parameters of swimming relay starts, and thus should be included explicitly as part of training. In particular, the coach could design training targeted at standardising an optimal exchange block time equal to or less than that expected for other teams in the competition.  相似文献   

Effects of cigarette smoking on cardiac autonomic function during dynamic exercise     

Goncalo V. Mendonca  Fernando D. Pereira  Bo Fernhall 《Journal of sports sciences》2013,31(9):879-886

Abstract

The purpose of this study was to investigate the acute effect of cigarette smoking on cardiac autonomic function in young adult smokers during dynamic exercise. Fourteen healthy young smokers (21.4 ± 3.4 years) performed peak and submaximal exercise protocols under control and smoking conditions. Resting and submaximal beat-to-beat R-R series were recorded and spectrally decomposed using the fast Fourier transformation. Smoking resulted in a significant decrease in work time, [Vdot]O_2peak and peak O₂ pulse (P < 0.05). Heart rate increased at rest and during submaximal exercise after smoking (P < 0.05). The raw high frequency and low frequency power were significantly reduced by smoking, both at rest and during exercise (P < 0.05). The low to high frequency ratio was higher after smoking (P < 0.05). The normalised low frequency power was also significantly increased by smoking, but only at rest (P < 0.05). These data demonstrate that the tachycardic effect elicited by smoking is accompanied by acute changes in heart rate spectral components both at rest and during exercise. Therefore, the cardiac autonomic control is altered by smoking not only at rest, but also during exercise, resulting in reduced vagal modulation and increased sympathetic dominance.  相似文献   

An instructional model for web-based e-learning education with a blended learning process approach     

Fernando Alonso  Genoveva López  Daniel Manrique  José M. Viñes 《British journal of educational technology : journal of the Council for Educational Technology》2005,36(2):217-235

Web‐based e‐learning education research and development now focuses on the inclusion of new technological features and the exploration of software standards. However, far less effort is going into finding solutions to psychopedagogical problems in this new educational category. This paper proposes a psychopedagogical instructional model based on content structure, the latest research into information processing psychology and social contructivism, and defines a blended approach to the learning process. Technologically speaking, the instructional model is supported by learning objects, a concept inherited from the object‐oriented paradigm.  相似文献   

The Sources of Error in Spanish Writing (Research Note)     

Fernando Justicia  Sylvia Defior  Santiago Pelegrina  Francisco J. Martos 《Journal of Research in Reading》1999,22(2):198-202

The main aim of this study was to determine the pattern of errors in Spanish spelling. Specifically, we were interested in discovering if all Spanish words have similar levels of spelling difficulty or whether there are types of words that cause a high percentage of spelling errors. 972 children aged between 8 to 10 years were requested to write a short spontaneous story. Our objective was to analyse and to propose a classification system for the errors made by children in the initial stages of the acquisition of spelling skills. The results indicate (a) that the diverse forms of only 20 Spanish words produce 36 per cent of the spelling errors in Spanish, and (b) that substitution is the most frequent type of error (68 per cent of total errors), which occurs as a consequence of an inadequate knowledge of the rules of phoneme-grapheme correspondence. These findings have relevance for the teaching of writing in Spanish.  相似文献   

Reading difficulties in Albanian     

Avdyli R  Cuetos F 《Annals of dyslexia》2012,62(3):137-152

Albanian is an Indo-European language with a shallow orthography, in which there is an absolute correspondence between graphemes and phonemes. We aimed to know reading strategies used by Albanian disabled children during word and pseudoword reading. A pool of 114 Kosovar reading disabled children matched with 150 normal readers aged 6 to 11?years old were tested. They had to read 120 stimuli varied in lexicality, frequency, and length. The results in terms of reading accuracy as well as in reading times show that both groups were affected by lexicality and length effects. In both groups, length and lexicality effects were significantly modulated by school year being greater in early grades and later diminish in length and just the opposite in lexicality. However, the reading difficulties group was less accurate and slower than the control group across all school grades. Analyses of the error patterns showed that phonological errors, when the letter replacement leading to new nonwords, are the most common error type in both groups, although as grade rises, visual errors and lexicalizations increased more in the control group than the reading difficulties group. These findings suggest that Albanian normal children use both routes (lexical and sublexical) from the beginning of reading despite of the complete regularity of Albanian, while children with reading difficulties start using sublexical reading and the lexical reading takes more time to acquire, but finally both routes are functional.  相似文献