Radial and tibial bone indices in athletes participating in different endurance sports: a pQCT study†

Low magnitude bone-loading sports may benefit bone structure and strength in the exercised limbs. This study compared peripheral quantitative computed tomography measures of radial and tibial diaphyseal strength (strength–strain index, SSI), structure (total area (ToA) and cortical area (CoA), density (CoD) and thickness (CT), and circumferences), muscle cross-sectional area (MCSA) and strength (one-repetition maximum, 1-RM) in male endurance athletes taking part in (i) non-weight-bearing and non-impact sports: swimmers (SWIM, n?=?13) and road cyclists (RC, n?=?10), (ii) non-weight-bearing, impact sport: mountain bikers (MB, n?=?10), (iii) weight bearing and impact sport: runners (RUN, n?=?9). All athlete groups were also compared to sedentary controls (CON, n?=?10). Arm MCSA, 1-RM and radial bone size and strength tended to be greater in SWIM than CON and/or RC (ToA, %difference ±?95%CI, SWIM-CON: 14.6%?±?12.7%; SWIM-RC: 12.9%?±?10.7%) but not different to MB and RUN. RUN had bigger tibial CoA than CON, SWIM and RC (CoA, RUN-CON: 12.1%?±?10.7%; RUN-SWIM: 10.9%?±?9.4%; RUN-RC: 15.8%?±?9.5%) without marked changes in tibial strength indices, lower-limb MCSA or 1-RM. Both MB and RC failed to display any difference in tibial indices, lower-limb MCSA and 1-RM compared to CON. In swimmers, the bone structure and strength of the primary exercised limbs, the arms, is greater than controls and road cyclists. Conversely, although runners experience impact and weight-bearing loading, tibial structure is greater without a substantial difference in tibial strength compared to controls and non-impact sports. Failure to observe a difference in tibial indices in MB and RC compared to controls is unexpected.     

Can a Successful ESL Teacher Hold Deficit Beliefs of Her Students’ Home Languages and Cultures?

In this article the author explores the seeming contradictions between the successful teaching practices of an English as a Second Language teacher and the deficit beliefs she expressed toward her students’ home languages and cultures. This teacher believed her students were smart and capable, and she held herself accountable for her students achieving academic success.     

Daejanggeum as ‘affective mobilization’: lessons for (transnational) popular culture and civil society

Abstract

(Transnationalized) popular culture and (global) social movement are often seen as unrelated, if not mutually exclusive. Popular culture is entertaining, consensual but trivial; social movement is serious, idealized and oppositional. Yet the WTO Ministerial Conference, held in Hong Kong in December 2005, saw the Korean protesters' adoption of the theme‐song of a popular Korean television drama, Daejanggeum, as their protest strategy. The Korean protesters had been framed by mainstream Hong Kong media as ‘violent rioters’, but the inclusion of the drama elements helped the protesters advance their cause by gaining instant rapport with the local Hong Kong news media and public/fans (of Korean wave). The impact of celebrity involvement in the WTO was also about an immediate transferal of fan affect, from celebrities to the movement, and to the Korean protesters. This ‘affect mobilization’, becomes important as movement capital, as the effective manipulation of emotions is a key to ‘getting the message across’ as movement strategies. The case of WTO Hong Kong reveals the possibility of a symbiotic relationship between transnational popular culture and globalized social movements. The ‘use’ of (Korean) popular cultural products enriches and complicates the affect subjectivities within the social movement, and arranges fan affect into multiple layers of emotion hierarchies/spheres. It remains to be seen, however, if this would set a precedence to protesters in future WTO rounds as they are keen to mobilize their causes in different locales. More research is needed, too, to demonstrate if the success of the Korean wave fosters the emergence of a transnational Asian ‘public’ or civil society. Yet, for now, the success of Korean protesters in the mobilization of Hong Kong public's affect epitomizes the hegemonic flow, or soft power, of Korean TV dramas in the Asian popular.     

Gifted underachievement within a self-regulated learning framework: Proposing a task-dependent model to guide early identification and intervention

Current theoretical and operational definitions of underachievement require that students show sustained suppressed academic achievement. Yet, early detection may allow for effective intervention before underachievement becomes a chronic issue. While existing identification procedures were not designed to detect underachievement before low academic performance occurs, the integration of self-regulated learning (SRL) into these practices may promote earlier identification and intervention. This conceptual paper (a) anchors gifted underachievement within Zimmerman's SRL model, (b) examines existing gifted literature investigating SRL components to demonstrate the benefits of applying an SRL model, and (c) proposes a comprehensive measurement and intervention technique to capture important motivational variables at the task level. By measuring SRL processes and underachievement at a task-specific level, we can target interventions to specific needs, address underachievement before it becomes a persistent problem, and help learners reach their academic potential.     

Relationship of perceived parenting styles,locus of control orientation,and self-concept among junior high age students

Relationships between adolescents' perceptions of their parents' responsiveness and demandingness, adolescents' locus of control orientation, and adolescents' self-concept ratings were investigated. Participants included 198 students in grades eight and nine who were administered the Nowicki–Strickland Internal–External Locus of Control Scale, the Harter Self-Perception Profile for Adolescents, and the Perceived Parenting Styles Survey. Participants who perceived their parents as being Authoritative had a significantly more internal locus of control orientation than subjects who perceived their parents as either Permissive or Authoritarian. Self-Concept scores were significantly higher for the Authoritative group than for the Permissive or Authoritarian groups in several areas. The findings indicate that an Authoritative style of parenting may contribute to the development of self-adequacy by being associated with internal locus of control orientation and stronger self-concept, while Permissive and Authoritarian styles of parenting may be associated with negative patterns of social-emotional development. © 1998 John Wiley & Sons, Inc.     

Identifying profiles of children at risk of being less physically active: an exploratory study using a self-organised map approach for motor competence

This study aims to develop profiles in children according to physical fitness, actual and perceived motor competence, and to examine the level of engagement in physical activity and weight status according to these profiles. In the study, 156 typically developing Spanish children (47.4% girls) of primary school age (5–11 years-old) participated voluntarily. Children’s perceived and actual motor competence, physical fitness, physical activity participation and weight status were assessed. A Self-Organising Map and K-means cluster analysis were used to classify and visualise the values. Four profiles were found: profile 2 was aligned – high capacity, high perception, profile 1 was partially aligned – medium capacity and perception, profile 3 and 4 were both non-aligned – low capacity, medium perception and medium capacity, low perception; respectively. Children in profile 2 were more active than children in profile 3 and 4 (P < .05). In profile 2 there was a lower frequency of overweight/obese children than normal-weight children. On the contrary, in profiles 1, 3 and 4 a similar distribution of normal-weight and overweight/obese children was found. High capable children with high perception exhibited higher physical activity participation and were more likely to be of normal-weight compared to those with low capacity and/or perception.     

Early retention: Are there long-term beneficial effects?

The purpose of this study was to examine whether retention of kindergarten and first-grade children is associated with long-term beneficial effects. Thirty-one children who had been retained were compared to 31 children who had similar grades but had never been retained. The dependent measures were grade point average in the second through fifth grades and four teacher-assessed areas of functioning in the fourth and fifth grade: social competence, cognitive competence, externalizing problems, and internalizing problems. The results indicated that retention was not associated with long-term beneficial effects but rather, especially for White children, appeared to be associated with poorer academic and social functioning. Implications and limitations of the study are discussed.