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51.
Bastian Carter-Thuillier Víctor López-Pastor Francisco Gallardo-Fuentes 《Infancia y Aprendizaje》2018,41(3):491-535
This study analyses the integration of Mapuche-Huilliche students who participate in a school sport programme based on the teaching for understanding model in a situation of social risk. In this context, 41 students (aged nine to 12) participate, 24 of whom are from the aforementioned ethnic group. To collect data, participant observation was conducted for eight months and group and individual interviews were held. The results show that the Mapuche-Huilliche students recognize themselves as members of the same collective when participating in games associated with their ethnic group. Their main motives for participating in school sport are the teaching approach and the acquisition of social capital. Cooperative learning activities are shown to foster positive interactions with non-Mapuche students. 相似文献
52.
Saleh A. Al-Abood Simon J. Bennett Francisco Moreno Hernandez Derek Ashford Keith Davids 《Journal of sports sciences》2013,31(3):271-278
We assessed the effects on basketball free throw performance of two types of verbal directions with an external attentional focus. Novices ( n = 16) were pre-tested on free throw performance and assigned to two groups of similar ability ( n = 8 in each). Both groups received verbal instructions with an external focus on either movement dynamics (movement form) or movement effects (e.g. ball trajectory relative to basket). The participants also observed a skilled model performing the task on either a small or large screen monitor, to ascertain the effects of visual presentation mode on task performance. After observation of six videotaped trials, all participants were given a post-test. Visual search patterns were monitored during observation and cross-referenced with performance on the pre- and post-test. Group effects were noted for verbal instructions and image size on visual search strategies and free throw performance. The 'movement effects' group saw a significant improvement in outcome scores between the pre-test and post-test. These results supported evidence that this group spent more viewing time on information outside the body than the 'movement dynamics' group. Image size affected both groups equally with more fixations of shorter duration when viewing the small screen. The results support the benefits of instructions when observing a model with an external focus on movement effects, not dynamics. 相似文献
53.
Amador García-Ramos Paola Barboza-González David Ulloa-Díaz Angela Rodriguez-Perea Darío Martinez-Garcia Francisco Guede-Rojas 《Journal of sports sciences》2013,31(19):2205-2212
ABSTRACTThis study examined the reliability and validity of three methods of estimating the one-repetition maximum (1RM) during the free-weight prone bench pull exercise. Twenty-six men (22 rowers and four weightlifters) performed an incremental loading test until reaching their 1RM, followed by a set of repetitions-to-failure. Eighteen participants were re-tested to conduct the reliability analysis. The 1RM was estimated through the lifts-to-failure equations proposed by Lombardi and O’Connor, general load-velocity (L-V) relationships proposed by Sánchez-Medina and Loturco and the individual L-V relationships modelled using four (multiple-point method) or only two loads (two-point method). The direct method provided the highest reliability (coefficient of variation [CV] = 2.45% and intraclass correlation coefficient [ICC] = 0.97), followed by the Lombardi’s equation (CV = 3.44% and ICC = 0.94), and no meaningful differences were observed between the remaining methods (CV range = 4.95–6.89% and ICC range = 0.81–0.91). The lifts-to-failure equations overestimated the 1RM (3.43–4.08%), the general L-V relationship proposed by Sánchez-Medina underestimated the 1RM (?3.77%), and no significant differences were observed for the remaining prediction methods (?0.40–0.86%). The individual L-V relationship could be recommended as the most accurate method for predicting the 1RM during the free-weight prone bench pull exercise. 相似文献
54.
José L. Arias Francisco M. Argudo José I. Alonso 《Research quarterly for exercise and sport》2013,84(3):502-509
We examined the game dynamics in minibasketball when comparing two different forms of the 3-point line. During the first competition, participants used a 3-point line delimited by the free-throw lane, and 1,642 ball possessions were recorded. During the second competition, participants played with a 3-point line delimited by a rectangular area, and 1,669 ball possessions were recorded. Results from the Mann-Whitney U Test show that when playing with a 3-point line delimited by the free-throw lane, higher average values were achieved in terms of points scored, number of players taking part in the ball possessions, number of passes, and one-on-one situations. 相似文献
55.
ABSTRACTWhat makes a good teacher and what motivates a person to want to teach are timeless questions that concern us all. This study focuses on those who are currently training to become teachers, more specifically undergraduates studying a degree in Primary Education in the universities of Catalonia. It adopts a quantitative methodology based on a self-administered questionnaire conducted with a representative sample. Participants’ open-ended responses are recorded and codified. Three main categories are constructed: personal, authentic teacher; the teacher as story teller; and, the teacher as motivator of learning. Results highlight important differences between these categories, extolling above all the authentic, personal teacher, who leaves a mark thanks to their character and way of being. This, together with other findings, raises various considerations for the university training of future teachers. 相似文献
56.
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
57.
PhD graduates hold the highest education degree, are trained to conduct research and can be considered a key element in the
creation, commercialization and diffusion of innovations. The impact of PhDs on innovation and economic development takes
place through several channels such as the accumulation of scientific capital stock, the enhancement of technology transfers
and the promotion of cooperation relationships in innovation processes. Although the placement of PhDs in industry provides
a very important mechanism for transmitting knowledge from universities to firms, information about the characteristics of
the firms that employ PhDs is very scarce. The goal of this paper is to improve understanding of the determinants of the demand
for PhDs in the private sector. Three main potential determinants of the demand for PhDs are considered: cooperation between
firms and universities, R&D activities of firms and several characteristics of firms, size, sector, productivity and age.
The results from the econometric analysis show that cooperation between firms and universities encourages firms to recruit
PhDs and point to the existence of accumulative effects in the hiring of PhD graduates. 相似文献
58.
59.
Francisco J. Martinez-Martin Fernando Gonzalez-Vidosa Antonio Hospitaler Víctor Yepes 《浙江大学学报(A卷英文版)》2012,13(6):420-432
This paper describes one approach to the design of reinforced concrete (RC) bridge piers, using a three-hybrid multi-objective simulated annealing (SA) algorithm with a neighborhood move based on the mutation operator from the genetic algorithms (GAs), namely MOSAMO1, MOSAMO2 and MOSAMO3. The procedure is applied to three objective functions: the economic cost, the reinforcing steel congestion and the embedded CO2 emissions. Additional results for a random walk and a descent local search multi-objective algorithm are presented. The evaluation of solutions follows the Spanish Code for structural concrete. The methodology was applied to a typical bridge pier of 23.97 m in height. This example involved 110 design variables. Results indicate that algorithm MOSAMO2 outperforms other algorithms regarding the definition of Pareto fronts. Further, the proposed procedure will help structural engineers to enhance their bridge pier designs. 相似文献
60.