The effect of ball carrying method on sprint speed in rugby union football players

Different methods of ball carrying can be used when a player runs with the ball in rugby union. We examined how three methods of ball carrying influenced sprinting speed: using both hands, under the left arm and under the right arm. These methods were compared with running without the ball. Our aim was to determine which method of ball carrying optimizes sprinting speed. Altogether, 48 rugby union players (age 21 +/- 2 years, height 1.83 +/- 0.1 m, body mass 85.3 +/- 12 kg, body fat 14 +/- 5%; mean +/- s) were recruited. The players performed twelve 30-m sprints in total (each player performed three trials under each of three methods of carrying the ball and sprinting without the ball). The design of the study was a form of Latin rectangle, balanced across the trial order for each of the methods and for pairwise combinations of the methods in blocks of four per trial. Each sprint consisted of a 10-m rolling start, followed by a 20-m timed section using electronic timing gates. Compared with sprinting 20 m without the ball (2.58 +/- 0.16 s), using both hands (2.62 +/- 0.16 s) led to a significantly slower time (P < 0.05). Sprinting 20 m with the ball under the left arm (2.61 +/- 0.15 s) or under the right arm (2.60 +/- 0.17 s) was significantly quicker than when using 'both hands' (P < 0.05), and both these methods were significantly slower than when running without the ball (P < 0.05). Accordingly, running with the ball in both hands led to the greatest decrement in sprinting performance, although carrying the ball under one arm also reduced the players' sprinting ability. Our results indicate that to gain a speed advantage players should carry the ball under one arm.     

北京之旅

当你作为外邦人来到一个全新的国度,能让你感到最为兴奋的便是碰触那个国度里最为民生的部分:小景点、繁忙的交通、做运动的老人家、使着各种招揽伎俩的小贩……你见到的一切都那么真实,每个人都在努力地生活着,不知不觉中,你已深深地为这个纯朴而真实的国度所吸引……     

Being a protégé: an autoethnographic view of three teacher education doctoral programs

Those in professional and academic fields generally perceive mentoring as a positive relationship that enhances the lives of protégés. Kram (1985 Kram, K.E. 1985. Mentoring at work: Developmental relationships in organizational life, Lanham, MD: University Press of America.  [Google Scholar]) posits that such relationships between dyads in organisational life are an evolutionary, developmental process. The purpose of this article is to explore protégés’ perspectives on their mentoring relationships within doctoral programs. In order to lessen the insurmountable distance between writers and readers that is often associated with a traditional research study, we employ an autoethnographic approach to research writing. We share our journey after having studied the mentoring relationships within our own doctoral programs. Qualitative data collected over a two‐year period consist of journal entries, email correspondence, and phone conversations. This research offers insight into the mentor–protégé relationship and processes, and it provides implications for practice for protégés and mentors, as well as future research directions.     

The Benjamin Franklin Medal in Life Science presented to Judah Folkman

The Franklin Institute, Philadelphia, Pennsylvania awarded the 2001 Benjamin Franklin Medal in Life Science to Judah Folkman for his founding of the field of angiogenesis research and demonstration that angiogenesis is a necessary factor in the conversion of abnormal cells to malignant tumors.     

The role of gender constancy in early gender development

Kohlberg's (1966) hypothesis that the attainment of gender constancy motivates children to attend to gender norms was reevaluated by examining these links in relation to age. Ninety-four 3- to 7-year-old children were interviewed to assess whether and how constancy mediates age-related changes in gender-related beliefs. As expected, results indicated a general pattern of an increase in stereotype knowledge, the importance and positive evaluation of one's own gender category, and rigidity of beliefs between the ages of 3 and 5. Moreover, the stability phase, rather than full constancy, mediated some of these relations. After age 5, rigidity generally decreased with age, with relations primarily mediated by consistency.     

Health information seeking behaviour: the librarian's role in supporting digital and health literacy

This paper is based on Rachel Butler's dissertation carried out at the University of Sheffield as part of the MA Library and Information Services Management. The study examines people's online health information seeking skills, with the specific aim to identify how libraries and health services can work together in supporting digital and health literacy. A survey approach is used to explore online searching habits as well as librarian and health professionals’ views on health literacy. The key findings indicate that whilst the majority of respondents consider themselves to be health literate, there was an overall agreement that effective education and support could be achieved through the collaboration between libraries and health services, and specifically to signpost information and to provide targeted education. The limitations of the research for dissertation are recognised leading to recommendations that further study focuses on the impact of signposting and education on health literacy.F.J.     

Stancetaking and Language Ideologies in Heritage Language Learner Classroom Discourse

Drawing on linguistic anthropological notions of language ideologies and sociolinguistic approaches to stance, this study examines the meaning-making resources through which Spanish heritage language (HL) learners orient toward ideological perspectives on language value and linguistic expertise in classroom interaction. Part of a larger ethnographic study, data in the present study include about 26 hours of audio and video recordings from three different intermediate Spanish HL classrooms and filmed interviews with the students. The analysis indicates that discourses of legitimacy and expertise are embodied within multiple levels of classroom interaction, including affective stancetaking, expert/novice positioning, and the reframing of both ascribed social positions and previous discourse. Results suggest that the role of language ideologies in HL learning can be better understood through an examination of stancetaking in interaction and that the construction of different kinds of expertise should be an important consideration in the development of HL instructional practices.