An international perspective for ‘Improving teacher professional development for online and blended learning: a systematic meta-aggregative review’     

Portillo  Javier  Lopez de la Serna  Arantzazu 《Educational technology research and development : ETR & D》2021,69(1):25-28

  相似文献   

The effects of morphological and syntactic knowledge on reading comprehension in spanish speaking children     

Simpson  Ian Craig  Moreno-Pérez  Francisco Javier  Rodríguez-Ortiz  Isabel de los Reyes  Valdés-Coronel  Marta  Saldaña  David 《Reading and writing》2020,33(2):329-348

Reading and Writing - Reading comprehension is a complex task requiring many underlying skills. Syntactic awareness and morphological awareness are two such skills that have been shown to be...  相似文献   

Tactical behaviour of winning athletes in major championship 1500-m and 5000-m track finals     

Sonia Aragón  Javier Arana  M. Teresa Anguera  Belén Garzón 《European Journal of Sport Science》2016,16(3):279-286

This article analyses the tactics employed by middle-distance (1500-m) and long-distance (5000-m) runners from an observational methodology perspective. The subject of investigation has received little attention from specialists in the field of athletics, with most research focusing on physiological studies of athlete performance. Using an ad hoc observation tool and a database containing systematically recorded data we detected time patterns (T-patterns) within the data recorded using the Theme software program (version 5.0), and analysed the tactics employed by winners of the men's 1500-m and 5000-m finals of the World Championships in Athletics [Edmonton 2001, Paris 2003, Helsinki 2005 (1500-m final only), Osaka 2007 (1500-m final only), Berlin 2009 and Daegu 2011], the European Athletics Championships (Munich 2002, Göteborg 2006, and Barcelona 2010) and the Olympic Games (Sydney 2000, Athens 2004, Beijing 2008 and London 2012). T-pattern detection and investigation of the relationship between category systems corresponding to the criteria comprising the observation tool revealed both similarities (starting lane and lane used during race, runner's position during race and sprint zone and lane) and differences (variations in pace, zones in which changes of pace occur, sprint initiation zone and winner's position at the start of the sprint) between the two disciplines.  相似文献   

Epidemiology of tennis injuries: An eight-year review of Davis Cup retirements     

Javier Maquirriain  Roberto Baglione 《European Journal of Sport Science》2016,16(2):266-270

Tennis practice, especially at elite levels, may place players at risk for debilitating musculoskeletal injuries. The aim of this study was to analyse the epidemiological pattern of retirements due to medical conditions sustained by tennis players during Davis Cup matches in the 2006–2013 period. All uncompleted matches due to a medical condition (injuries and illnesses) occurred in the above-mentioned competition were collected from the official source, registered and analysed according to published guidelines. The overall incidence of match retirements was 1.66% (12/719). The injury rate was 6.05/1000 playing hours; and 6.64/1000 match exposures. Musculotendinous lesions were the most common type of injury (66.66%). The incidence of lower-limb injuries was higher than upper-limb and trunk lesions. The incidence of retired matches due to medical conditions was higher in hard courts than in clay courts (2.97% and 0.90%, respectively; p = 0.04), while the median value of inactivity of injuries was 32.0 days (range 3–297). In conclusion, the incidence of retirements due to medical conditions in Davis Cup matches was low supporting the assumption that elite tennis is a low-risk sport activity. Findings provided scientific evidences of injury patterns among male professional tennis players and may contribute to conduct better injury prevention strategies.  相似文献   

Caffeine improves muscular performance in elite Brazilian Jiu-jitsu athletes     

Francisco Javier Diaz-Lara  Juan Del Coso  Jose Manuel García  Luis J. Portillo  Francisco Areces 《European Journal of Sport Science》2016,16(8):1079-1086

Scientific information about the effects of caffeine intake on combat sport performance is scarce and controversial. The aim of this study was to investigate the effectiveness of caffeine to improve Brazilian Jiu-jitsu (BJJ)-specific muscular performance. Fourteen male and elite BJJ athletes (29.2?±?3.3?years; 71.3?±?9.1?kg) participated in a randomized double-blind, placebo-controlled and crossover experiment. In two different sessions, BJJ athletes ingested 3?mg?kg^?1 of caffeine or a placebo. After 60?min, they performed a handgrip maximal force test, a countermovement jump, a maximal static lift test and bench-press tests consisting of one-repetition maximum, power-load, and repetitions to failure. In comparison to the placebo, the ingestion of the caffeine increased: hand grip force in both hands (50.9?±?2.9 vs. 53.3?±?3.1?kg; respectively p?p?=?.02), and time recorded in the maximal static lift test (54.4?±?13.4 vs. 59.2?±?11.9?s; p?p?=?.02), maximal power obtained during the power-load test (750.5?±?154.7 vs. 826.9?±?163.7?W; p?p?=?.04). In conclusion, the pre-exercise ingestion of 3?mg?kg^?1 of caffeine increased dynamic and isometric muscular force, power, and endurance strength in elite BJJ athletes. Thus, caffeine might be an effective ergogenic aid to improve physical performance in BJJ.  相似文献   

Automatic laboratory-based strategy to improve the diagnosis of type 2 diabetes in primary care     

Maria Salinas  Maite López-Garrigós  Emilio Flores  Maria Leiva-Salinas  Javier Lugo  Francisco J Pomares  Alberto Asencio  Miguel Ahumada  Carlos Leiva-Salinas 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2016,26(1):121-128

Introduction

To study the pre-design and success of a strategy based on the addition of hemoglobin A1c (HbA1c) in the blood samples of certain primary care patients to detect new cases of type 2 diabetes.

Materials and methods

In a first step, we retrospectively calculated the number of HbA1c that would have been measured in one year if HbA1c would have been processed, according to the guidelines of the American Diabetes Association (ADA). Based on those results we decided to prospectively measure HbA1c in every primary care patient above 45 years, with no HbA1c in the previous 3 years, and glucose concentration between 5.6-6.9 mmol/L, during an 18 months period. We calculated the number of HbA1c that were automatically added by the LIS based on our strategy, we evaluated the medical record of such subjects to confirm whether type 2 diabetes was finally confirmed, and we calculated the cost of our intervention.

Results

In a first stage, according to the guidelines, Hb1Ac should have been added to the blood samples of 13,085 patients, resulting in a cost of 14,973€. In the prospective study, the laboratory added Hb1Ac to 2092 patients, leading to an expense of 2393€. 314 patients had an HbA1c value ≥ 6.5% (48 mmol/mol). 82 were finally diagnosed as type 2 diabetes; 28 thanks to our strategy, with an individual cost of 85.4€; and 54 due to the request of HbA1c by the general practitioners (GPs), with a cost of 47.5€.

Conclusion

The automatic laboratory-based strategy detected patients with type 2 diabetes in primary care, at a cost of 85.4€ per new case.Key words: type 2 diabetes, HbA1c, diagnosis, preanalytical phase, test request appropriateness, costs, cost analysis  相似文献   

Patterns of interaction in the processes of joint reflection by student teachers     

Teresa Mauri  Marc Clarà  Rosa Colomina  Javier Onrubia 《师资教育杂志》2017,43(4):427-443

Although some research results indicate that joint reflection can improve student-teachers’ reflection, it is not clear how the interaction between student-teachers during a joint reflection process helps this to happen. The aim of this paper is to explore how the organisation of joint activity in processes of joint reflection assists students’ reflection, by identifying patterns of joint reflection (considering all the participants rather than only tutor–student dyads) and by discussing the functional role of these patterns within the students’ processes of reflection and internalisation. Two cases of joint reflection processes between a group of student teachers (15 and 13) and their tutors were examined. In each case, five seminars lasting around one-and-a-half hours each were videotaped and analysed, and individual written reflections after each seminar were gathered and scored. Results showed that joint reflection developed in each case according to different interaction patterns, and that individual written students’ reflections improved from seminar 1 to seminar 5 in one of the cases, but not in the others. These results suggest a relationship between interaction patterns of joint reflection and progress in students’ individual reflection.  相似文献   

Supporting collaborative reflection in teacher education: a case study     

Marc Clarà  Teresa Mauri  Rosa Colomina  Javier Onrubia 《欧洲师范教育杂志》2019,42(2):175-191

The aim of this paper is to understand how certain educational supports promote preservice teachers’ learning to reflect in collaborative settings. To address this issue, we present a case study on collaborative reflection among 14 preservice teachers and one teacher educator over the course of five weekly consecutive sessions. The results suggest that collaborative reflection can be supported by organizing the process according to a twofold dynamic: from analysis to synthesis, and from open facilitation to directive facilitation. Six different types of assistance related to this dynamic, and provided by the teacher educator, are identified and qualitatively described: framing, oppositional voice, counterpoising alternatives, asking for the dilemma, problematizing, and modelling.  相似文献   

Exploring the derivative suffix frequency effect in Spanish speaking children     

Miguel Lázaro  Joana Acha  Saray de la Rosa  Seila García  Javier Sainz 《Reading and writing》2017,30(1):163-185

This study was designed to examine the developmental course of the suffix frequency effect and its role in the development of automatic morpho-lexical access. In Spanish, a highly transparent language from an orthographic point of view, this effect has been shown to be facilitative in adults, but the evidence with children is still inconclusive. A total of 90 2nd, 4th and 6th grade children performed a go/no go lexical decision task, with words containing either high or low frequency suffixes. Results showed significant main effects for grade and for derivative suffix frequency, with no interaction between both. This finding suggests that the suffix frequency effect emerges very early in reading development and that its role is well established from the beginning of reading experience, suggesting that sensitivity to suffix frequency can be a good predictor of a child’s ability to internalize orthographic regularities at an early stage. These findings are interpreted in the light of previous evidence paying special attention to orthographic transparency and morpheme regularity in Spanish language.  相似文献   

Organizational knowledge and collaborative human resource practices as determinants of innovation     

Julia?NievesEmail author  Agustín?Quintana  Javier?Osorio 《知识管理研究与实践》2016,14(3):237-245

A basic premise of the literature states that innovation depends on the ability of firms to manage knowledge. However, despite the major role of services in the economy, studies that assess the role of knowledge in innovation performance are particularly limited in this sector. Moreover, knowledge and human resource practices are intrinsically related concepts, as it is people who generate processes and refine knowledge. An empirical analysis is conducted on the role of organizational knowledge and collaborative human resource practices in innovation performance. The results show that: (i) existing knowledge in a certain domain provides a base for introducing innovations into the domain; (ii) knowledge of a more general nature favours the introduction of various types of innovation; (iii) collaborative human resource practices are an antecedent of product innovation; and (iv) development of organizational knowledge may be based on a broader perspective associated with human resource management.  相似文献