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81.
This paper deals with Swedish full text retrieval and the problem of morphological variation of query terms in the document database. The effects of combination of indexing strategies with query terms on retrieval effectiveness were studied. Three of five tested combinations involved indexing strategies that used conflation, in the form of normalization. Further, two of these three combinations used indexing strategies that employed compound splitting. Normalization and compound splitting were performed by SWETWOL, a morphological analyzer for the Swedish language. A fourth combination attempted to group related terms by right hand truncation of query terms. The four combinations were compared to each other and to a baseline combination, where no attempt was made to counteract the problem of morphological variation of query terms in the document database. The five combinations were evaluated under six different user scenarios, where each scenario simulated a certain user type. The four alternative combinations outperformed the baseline, for each user scenario. The truncation combination had the best performance under each user scenario. The main conclusion of the paper is that normalization and right hand truncation (performed by a search expert) enhanced retrieval effectiveness in comparison to the baseline. The performance of the three combinations of indexing strategies with query terms based on normalization was not far below the performance of the truncation combination. 相似文献
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Per Solvang 《International Studies in Sociology of Education》2013,23(1-2):79-94
There are several social actors involved in the process of constructing the social meaning of dyslexia—namely, parents, teachers, educational authorities and organisations representing dyslectics. Some of these actors emphasise the constructive social powers related to the dyslexia label, while others perceive dyslexia as diagnostic reasoning counter productive to the learning processes. In the discussion of this paradox, this article uses sociological medicalisation theory as a provider of perspectives on medical labelling as contested, and on how the labelling process is socially structured. Empirically, the article is based on four studies in Scandinavia of the construction of dyslexia in different social settings, such as individual life stories, parent stories, educational politics and the legal system. The medicalisation perspective is found most useful for the understanding of undesirable effects. To understand reported experience of medical labelling as empowering, other sociological perspectives are more useful. 相似文献
84.
Stafford Murray Janez Perš Rok Mandeljc Goran Vučković 《Journal of sports sciences》2018,36(12):1415-1422
Situation awareness (SA) refers to the awareness of all relevant sources of information, an ability to synthesise this information using domain knowledge gained from past experiences and the ability to physically respond to a situation. Expert-novice differences have been widely reported in decision-making in complex situations although determining the small differences in expert behaviour are more elusive. This study considered how expert squash players use SA to decide on what shot to play. Matches at the 2010 (n = 14) and 2011 (n = 27) Rowe British Grand Prix were recorded and processed using Tracker software. Shot type, ball location, players’ positions on court and movement parameters between the time an opponent played a shot prior to the player’s shot to the time of the opponent’s following shot were captured 25 times per second. Six SA clusters were named to relate to the outcome of a shot ranging from a defensive shot played under pressure to create time to an attempted winner played under no pressure with the opponent out of position. This new methodology found fine-grained SA differences in expert behaviour, even for the same shot type played from the same court area, beyond the usual expert-novice differences. 相似文献
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Ursula Reichenpfader Anette Wickström Madeleine Abrandt Dahlgren Per Nilsen Siw Carlfjord 《Studies in Continuing Education》2018,40(3):323-336
ABSTRACTMedication review, a systematic assessment of a patient’s medicines by a health care professional, is intended to prevent medication-related harms. A critical element of medication review concerns whether medication review is conducted in a coordinated way. This article draws from a case example of implementing medication review in two surgical wards of a Swedish regional hospital and aims to analyse how medication review is being accomplished with respect to the coordination of its actions. Using a practice-based ethnographic approach, we present several coordination mechanisms by illustrating how practices are connected to materials involved in medication review. Also, we show how common orientations, ends, and understandings expressed in different medication review practices contribute to the coordination of the practices. In conclusion, this article highlights the complexity of establishing and sustaining medication review as a coordinated practice in routine health care. By closely examining sociomaterial connections, this article sheds new light on the neglected issue of artefacts and arrangements in constituting and transforming a highly complex medication practice. 相似文献
86.
Apprenticeships are required for many trades and can take different forms. In Sweden, one form can be viewed as a pathway where students complete a three-year-long vocational education in upper secondary school followed by a post-secondary apprenticeship in a particular trade. Another takes the form of vocational training within the framework of upper secondary school through an apprenticeship. This study analyses how a more clearly defined apprenticeship curriculum can provide sufficient knowledge to identify and understand learning outcomes in apprenticeships. A theoretical framework of an apprenticeship curriculum is used in the analytical work. The findings show that educational goals are often overlooked during apprenticeships, and thus a deliberative education is overridden by deliberative learning that stems from and is closely connected to the individual’s own perception of what to learn. By constituting an apprenticeship curriculum, this article contributes to an enhanced understanding of how to analyse vocational learning, and thus adds important elements to the research field. 相似文献
87.
Magnus Dencker Ola Thorsson Magnus K. Karlsson Christian Lindén Per Wollmer L. B. Andersen 《Journal of sports sciences》2013,31(13):1397-1402
Abstract Maximal oxygen uptake ([Vdot]O2max) is considered the optimal method to assess aerobic fitness. The measurement of [Vdot]O2max, however, requires special equipment and training. Maximal exercise testing with determination of maximal power output offers a more simple approach. This study explores the relationship between [Vdot]O2max and maximal power output in 247 children (139 boys and 108 girls) aged 7.9–11.1 years. Maximal oxygen uptake was measured by indirect calorimetry during a maximal ergometer exercise test with an initial workload of 30 W and 15 W · min?1 increments. Maximal power output was also measured. A sample (n = 124) was used to calculate reference equations, which were then validated using another sample (n = 123). The linear reference equation for both sexes combined was: [Vdot]O2max (ml · min?1) = 96 + 10.6 · maximal power + 3.5 · body mass. Using this reference equation, estimated [Vdot]O2max per unit of body mass (ml · min?1 · kg?1) calculated from maximal power correlated closely with the direct measurement of [Vdot]O2max (r = 0.91, P <0.001). Bland-Altman analysis gave a mean limits of agreement of 0.2±2.9 (ml · min?1 · kg?1) (1 s). Our results suggest that maximal power output serves as a good surrogate measurement for [Vdot]O2max in population studies of children aged 8–11 years. 相似文献
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Jesper Jensen Thomas Bandholm Per Hölmich Kristian Thorborg 《Journal of sports sciences》2013,31(14):1357-1364
AbstractHip adduction strength is important for kicking and acceleration in soccer players. Changes in hip adduction strength may therefore have an effect on soccer players’ athletic performance. The purpose of this study was to investigate the acute and sub-acute effects of a kicking drill session on hip strength, concerning isometric hip adduction, abduction and flexion torque of the kicking leg and the supporting leg. Ten injury-free male elite soccer players, mean ± s age of 15.8 ± 0.4 years participated. All players underwent a specific 20 min kicking drill session, comprising 45 kicks. The players were tested the day before, 15 min after and 24 h after the kicking drill session by a blinded tester using a reliable test procedure. The isometric hip-action and leg-order were randomized. For the kicking leg, hip adduction torque increased from 2.45 (2.19–2.65) Nm ? kg?1, median (25th–75th percentiles), at pre-kicking to 2.65 (2.55–2.81) Nm ? kg?1 (P = 0.024) 24 h post-kicking. This may have implications for the soccer player’s ability to maximally activate the hip adductors during kicking and acceleration, and thereby improve performance the day after a kicking drill session. 相似文献
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Bente Rigmor Walgermo Njål Foldnes Per Henning Uppstad Oddny Judith Solheim 《Reading and writing》2018,31(6):1379-1399
Previous studies have documented robust relationships between emergent literacy and later reading performance. A growing body of research has also reported associations between motivational factors and reading in early phases of reading development. However, there is less research about cross-lagged relationships between motivational factors and reading skills in beginning readers. To examine relationships between early reading skills, literacy interest and reader self-concept, we tested 1141 children twice during their first year of formal reading instruction in school. Cross-lagged analysis showed strong stability in reading skills and medium stability in literacy interest and reader self-concept over the first school year. We also found bidirectional relationships between reading skills and self-concept and between the motivational components of literacy interest and reader self-concept. In the final part of the article, we address the potential theoretical progress attainable through the use of cross-lagged designs in this field. 相似文献
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Ellen Almers Per Askerlund Sofia Kjellström 《The Journal of environmental education》2018,49(3):242-259
Utilizing forest gardens as urban settings for outdoor environmental education in Sweden is a new practice. These forest gardens combine qualities of a forest, e.g., multi-layered polyculture vegetation, with those of a school garden, such as accessibility and food production. The study explores both the perceived qualities of forest gardens in comparison to other outdoor settings and forest garden educators' ideas, purposes, and experiences of activities in a three-year forest gardening project with primary school children. The data were collected through interviews and observations and analyzed qualitatively. Four reported ideas were to give children opportunities to: feel a sense of belonging to a whole; experience self-regulation and systemic dependence; experience that they can co-create with non-human organisms; and imagine possible transformation of places. Four pedagogical forest garden features are discussed. 相似文献