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11.
Amy Vivien Tanner Birthe Vejby Nielsen Judith Allgrove 《Journal of sports sciences》2013,31(7):680-689
AbstractThe aim of this study was to examine the acute response to plasma and salivary cortisol and testosterone to three training protocols. Ten trained endurance athletes participated in three experimental trials, such as interval training (INT), tempo run (TEMP) and bodyweight-only circuit training (CIR), on separate days. Blood and saliva samples were collected pre- and 0, 15, 30 and 60 min post-exercise. Peak post-exercise salivary cortisol was higher than pre-exercise in all trials (P < 0.01). After INT, salivary cortisol remained elevated above pre-exercise than 60 min post-exercise. Salivary testosterone also increased post-exercise in all trials (P < 0.05). Plasma and salivary cortisol were correlated between individuals (r = 0.81, 0.73–0.88) and within individuals (r = 0.81, 0.73–0.87) (P < 0.01). Plasma and salivary testosterone was also correlated between (r = 0.57, 0.43–0.69) and within individuals (r = 0.60, 0.45–0.72), (P < 0.01). Peak cortisol and testosterone levels occurred simultaneously in plasma and saliva, but timing of post-exercise hormone peaks differed between trials and individuals. Further investigation is required to identify the mechanisms eliciting an increase in hormones in response to CIR. Furthermore, saliva is a valid alternative sampling technique for measurement of cortisol, although the complex, individual and situation dependent nature of the hormone response to acute exercise should be considered. 相似文献
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Public participation: democratic ideal or pragmatic tool? The cases of GM foods and functional foods
Over recent decades, public participation initiatives have been employed across Europe often with a focus on science and technology issues. In the area of new food technologies most participation initiatives have centered on genetically modified foods. By contrast, in the area of functional foods--where significant EU legislation was recently passed--we have seen no initiatives towards public inclusion. This applies also for Denmark, the country which is the focus of this article. Based on an interview study with members of the Danish parliament the article examines why such considerable differences exist between initiatives to involve the public, and it challenges the role that public participation plays in Danish politics. The main claim made in the article is that although politicians argue for the value and relevance of public participation their willingness to initiate participatory processes is overruled by their concern with playing by the rules of the political game. 相似文献
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OBJECTIVE: This study was undertaken to assess academic progress of children 1 to 5 years after graduating from the C. Henry Kempe Center's Therapeutic Preschool Day Treatment Program. METHOD: Information was gathered through chart review; telephone surveys of care providers, relatives, and social service workers; as well questionnaires on all children who attended the therapeutic preschool day treatment program between 1984 and 1989, including the 24 children reported on by Oates, Gray, Schweitzer, Kempe, and Harmon, 1995. RESULTS: Classroom placement was determined for 27 of the 44 graduates (61.4%), 14 of whom (51.9%) were in a regular classroom, 10 (37.0%) in special education, two (7.4%) in residential treatment, and one (3.7%) was receiving home schooling. Twenty-two of the 27 children (81.5%) improved or remained in the same grade and type of classroom as they had been staffed into at the time of their graduation from the preschool day treatment program. Factors thought to affect stability of classroom placement were studied, of which frequency of family moves was the only significant variable. Its significance was in the direction opposite to that expected. The most effective method of locating families was to contact the Department of Social Services who provided information used to find 60% of them. CONCLUSIONS: Intervention in a therapeutic preschool day treatment program was found to be beneficial, as it enabled most of the children to progress appropriately in public school. 相似文献
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H. Dean Nielsen 《Distance Education》1997,18(2):284-317
Governments around the world have increasingly used distance education (DE), both preservice and inservice, to overcome conventional, campus‐based programme constraints in funding, access and student places. DE programmes have shown that they can expand assess to teacher education, but still need to demonstrate that they can produce teachers of the quality needed for today's schools. Quality assessment systems have been developed, using either examinations or impact studies, to demonstrate programme effect on graduate outcomes related to good teaching. Quality assurance systems have been designed, based on the concept of the ‘learning organisation’, to assure continuous improvement in programme conditions related to the desired outcomes. Quality assessment and assurance systems are reviewed and some examples of quality DE programmes presented. 相似文献
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Kristen Nielsen 《Journal of Research in Reading》2014,37(1):1-16
Student writing achievement is essential to lifelong learner success, but supporting writing can be challenging for teachers. Several large‐scale analyses of publications on writing have called for further study of instructional methods, as the current literature does not sufficiently address the need to support best teaching practices. Self‐assessment methods in writing instruction present meaningful ways to promote student writing achievement through reflection and meta‐cognition during the writing process. Self‐assessment practices are described in publications across the academic disciplines where writing is required, and close investigations of the methods are also published in the research fields of literacy, English education and composition. This study aims to bridge these fields to construct a clear and comprehensive understanding of self‐assessment methods. Self‐assessment encompasses a wide range of practices and varied terminology. It is essential to clarify effective methods of self‐assessment and to disseminate practical information to educators. This paper presents the findings of an analysis of the literature yielding: (1) a theoretical framework for self‐assessment methods in writing instruction; (2) an overview of concepts/practices; (3) a list of literature‐supported strategies for effective classroom use derived from a study of a vast body of literature. Results strongly support self‐assessment as a means to foster student writing achievement, middle school through higher education. Delineated strategies can assist instructors with self‐assessment implementation. 相似文献
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Cecilia Nielsen 《Scandinavian Journal of Educational Research》2013,57(5):551-565
Dyslexia is a well-known phenomenon and help and assistance are offered to pupils and students who experience literacy difficulties on a regular basis. But what help do they need and want? In this article the responses people with reading and writing difficulties/dyslexia give to this question are discussed. What, if we take the student's own viewpoint, is the most important thing the teacher can do? The students never mention any particular teaching methods. What appears as important to them is that the teacher sees them as individuals, not just as dyslectics, understands the special difficulties with which each individual must grapple, and provides the students with suitable tools for their learning as well as necessary time and space. 相似文献