Influence of regression model and incremental test protocol on the relationship between lactate threshold using the maximal-deviation method and performance in female runners     

Machado FA  Nakamura FY  Moraes SM 《Journal of sports sciences》2012,30(12):1267-1274

This study examined the influence of the regression model and initial intensity of an incremental test on the relationship between the lactate threshold estimated by the maximal-deviation method and the endurance performance. Sixteen non-competitive, recreational female runners performed a discontinuous incremental treadmill test. The initial speed was set at 7 km · h?1, and increased every 3 min by 1 km · h?1 with a 30-s rest between the stages used for earlobe capillary blood sample collection. Lactate-speed data were fitted by an exponential-plus-constant and a third-order polynomial equation. The lactate threshold was determined for both regression equations, using all the coordinates, excluding the first and excluding the first and second initial points. Mean speed of a 10-km road race was the performance index (3.04 ± 0.22 m · s?1). The exponentially-derived lactate threshold had a higher correlation (0.98 ≤ r ≤ 0.99) and smaller standard error of estimate (SEE) (0.04 ≤ SEE ≤ 0.05 m · s?1) with performance than the polynomially-derived equivalent (0.83 ≤ r ≤ 0.89; 0.10 ≤ SEE ≤ 0.13 m · s?1). The exponential lactate threshold was greater than the polynomial equivalent (P < 0.05). The results suggest that the exponential lactate threshold is a valid performance index that is independent of the initial intensity of the incremental test and better than the polynomial equivalent.  相似文献   

Δ-distance: A family of dissimilarity metrics between images represented by multi-level feature vectors     

Marta Rukoz  Maude Manouvrier  Geneviève Jomier 《Information Retrieval》2006,9(6):633-655

This article presents the Δ-distance, a family of distances between images recursively decomposed into segments and represented by multi-level feature vectors. Such a structure is a quad, a quin or a nona-tree resulting from a fixed and arbitrary image partition or from an image segmentation process. It handles positional information of image features (e.g. color, texture or shape). Δ-distance is the generalized form of dissimilarity measures between multi-level feature vectors. Using different weights on tree nodes and different distances between nodes, distances between trees or visual similarity between images can be computed based on the general definition of Δ. In this article, we present three Δ-based distance families: two families of distances between tree structures, called -distance( for Tree) and -distance ( for Segment), and a family of visual distances between images, called ( for Visual). The -distance visually compares two images using their tree representation and the other two distances compare the tree structures resulting from image segmentation. Moreover, we show how existing distances between multi-level feature vectors appear to be particular cases of the Δ-distance  相似文献   

In general     

Cheryl Brook & Kath Aspinwall 《Action Learning: Research and Practice》2013,10(1):58-60

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Reading in pairs Network: a training model based on peer learning (pairs of teachers and school networks) for the sustainability of educational innovation / Red Leemos en pareja: un modelo de formación basado en el aprendizaje entre iguales (parejas de profesores y redes de centros) para la sostenibilidad de la innovación educativa     

David Duran  Marta Utset 《Cultura y Educación》2013,25(2):377-384

Abstract

This article presents a study on a Primary and Secondary Education teacher training network from Catalonia for the implementation of the Reading in pairs program. The goal is to describe, analyse, and assess the training model’s characteristics in relation to the learning promoted among participants, as well as the possibilities of actually incorporating educational innovation in the schools. The results suggest that this formative ecosystem permits a degree of learning and understanding of the program and its conceptual foundations that is relevant to the ability to implement it creatively and to adapt it to each school so that its sustainability is guaranteed.  相似文献   

Equity in Education for/with Refugees and Migrants—Toward a Solidarity Promoting Interculturalism     

Marta Moskal  Amy North 《欧洲教育》2017,49(2-3):105-113

This special issue brings to the forefront the complex educational challenges faced by migrants, refugees, and asylum seekers. It focuses on different ways of understanding equity in relation to education for/with refugees and migrants. The core articles gathered for the special issue originate from the Comparative Education Society in Europe (CESE) conference on the theme of “Equity in and Through Education” held in Glasgow, UK, between May 31 and June 3, 2016. Thus, the special issue addresses the question of equity in diverse local, national, and transnational contexts and from an interdisciplinary approach.  相似文献   

Prospective Primary Teachers’ Prior Experiences,Conceptions, and Pedagogical Valuations of Experimental Activities in Science Education     

Antonio García-Carmona  Ana M. Criado  Marta Cruz-Guzmán 《International Journal of Science and Mathematics Education》2018,16(2):237-253

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Internal review and self-evaluation — the chosen route to school improvement in ireland?     

Gerry. McNamara  Joe O'Hara 《Studies in Educational Evaluation》2005,31(4):183

In recent years there has been an intense debate in many countries concerning the best approach to improving schools. The various methods being tried might be reasonably seen as constituting a continuum ranging from strict external control and inspection at one end, to self-evaluation and internal regulation at the other. In practice, most education systems appear to be moving towards a combination of these methods, involving a degree of external monitors of internal self-evaluation mechanisms. This article analyses the gradual emergence in the Irish education system of such an accommodation. It charts the increased emphasis being placed upon school self-evaluation and argues that it does constitute the best way forward. However, it also highlights a major lacuna at the heart of the emerging system, namely the lack of firm data on which schools can really base effective improvement strategies.  相似文献   

构建高水平、有活力的教师教育体系的思考     

谢飞军 《浙江教育学院学报》2002,(3):74-78

纵观国际师范教育发展趋势，师范教育体系将最终逐步从一元封闭型向多元开放型转变。通过对师范教育面临的挑战，以及社会经济，教育的发展形势分析，提出高水平，有活力的教师教育体系的构建思路。  相似文献   

由《颜氏家训》中复音词的结构模式及语义构成看复音词的发展     

张秋艳 《浙江教育学院学报》2002,(3):1-7

东汉到魏晋南北朝，古代汉语发生了质的变化，出现了许多新的词语 新的句法格式。《颜氏家训》正是这一时期的作，使南北朝时期的复音词发展得以展现。  相似文献   

Self-esteem and coping strategies among deaf students   总被引：1，自引：0，他引：1  

Jambor E  Elliott M 《Journal of deaf studies and deaf education》2005,10(1):63-81

Research studies on the determinants of self-esteem of deaf individuals often yield inconsistent findings. The current study assessed the effects on self-esteem of factors related to deafness, such as the means of communication at home and severity of hearing loss with hearing aid, as well as the coping styles that deaf people adopt to cope with everyday life in a hearing world. Data were collected among the deaf students of California State University, Northridge. Hierarchical regression modeling showed that identification with the Deaf community significantly contributed to positive self-esteem. Results also revealed that deaf students with greater degree of hearing loss and with bicultural skills that help them function in both the hearing and the Deaf community generally have higher self-esteem. Implications for further study are discussed.  相似文献