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Abstract The frequency of one-legged stance and two-legged stance differs considerably among sports. We therefore expect the balance ability of athletes from different sports to vary. This study compared the sway characteristics during a static one-legged stance of soccer players, basketball players, swimmers, and non-athletes. The centre of pressure sway during one-legged stance of ten male participants representing each of the four groups was measured using a stabilometer. Centre of pressure sway was assessed by four sway factors: sway velocity, anterior-posterior sway, horizontal sway, and high-frequency sway. None of the four groups of participants showed significant differences in body sway between standing on the dominant leg and standing on the non-dominant leg. The soccer players had more high-frequency sway and less anterior-posterior sway and horizontal sway than the basketball players, swimmers, and non-athletes. These results suggest that soccer players have superior ability to maintain a stable one-legged stance. Further study is required to determine how much of the superior balance ability in soccer players is innate and how much is developed through training, as well as to determine the relationship between balance ability and playing performance. 相似文献
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Andrew G. Campbell Rachel Skvirsky Henry Wortis Sheila Thomas Ichiro Kawachi Christine Hohmann 《CBE life sciences education》2014,13(4):587-592
This paper summarizes the outcomes of a retreat designed to cultivate interactions between trainees at various training levels and provide them opportunities to share their training perspectives and expectations. Retreat outcomes are used to support the development of better science, technology, engineering, and mathematics training practices by informing the trainers’ perspective. 相似文献
3.
Orloff ND Dennis JR Cecchini M Schonbrun E Rocas E Wang Y Novotny D Simmonds RW Moreland J Takeuchi I Booth JC 《Biomicrofluidics》2011,5(4):44107-441079
We present a 91 MHz surface acoustic wave resonator with integrated microfluidics that includes a flow focus, an expansion region, and a binning region in order to manipulate particle trajectories. We demonstrate the ability to change the position of the acoustic nodes by varying the electronic phase of one of the transducers relative to the other in a pseudo-static manner. The measurements were performed at room temperature with 3 μm diameter latex beads dispersed in a water-based solution. We demonstrate the dependence of nodal position on pseudo-static phase and show simultaneous control of 9 bead streams with spatial control of −0.058 μm/deg ± 0.001 μm/deg. As a consequence of changing the position of bead streams perpendicular to their flow direction, we also show that the integrated acoustic-microfluidic device can be used to change the trajectory of a bead stream towards a selected bin with an angular control of 0.008 deg/deg ± 0.000(2) deg/deg. 相似文献
4.
Carolyn Zahn-Waxler Ruth J. Friedman Pamela M. Cole Ichiro Mizuta Noriko Hiruma 《Child development》1996,67(5):2462-2477
Japanese and U.S. preschool children's responses to hypothetical interpersonal dilemmas were examined as a function of culture, gender, and maternal child-rearing values. U.S. children showed more anger, more aggressive behavior and language, and underregulation of emotion than Japanese children, across different contexts of assessment. Children from the 2 cultures appeared more similar on prosocial and avoidant patterns, though in some contexts U.S. children also showed more prosocial themes. Girls from both cultures expressed more prosocial themes and sometimes more anger than boys. Maternal encouragement of children's emotional expressivity was correlated with anger and aggression in children. It was more characteristic of U.S. than Japanese mothers, while emphasis on psychological discipline (reasoning; guilt and anxiety induction) was more characteristic of Japanese than U.S. mothers. The relevance of a conceptual framework that focuses on differences in Eastern and Western cultures in self-construals regarding independence and interdependence is considered. 相似文献
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This qualitative study makes the case for the implementation of curriculum mapping, a procedure that creates a visual representation
of curriculum based on real time information, as a way to increase collaboration and collegiality in higher education. Through
the use of curriculum mapping, eleven faculty members in a western state university Teacher Licensure program aligned and
revised the teacher education curriculum across a sequence of courses. An increase in collaboration and collegiality among
faculty emerged as an unintended outcome as a result of participation in the project.
Kay Pippin Uchiyama is currently the Assessment Coordinator for the Poudre School District in Fort Collins, Colorado. During this study, she was
an Assistant Professor of Teacher Education at Colorado State University and a co-primary investigator for the Preparing Tomorrow’s
Teachers to Use Data grant. She received her Ph.D. in Instruction and Curriculum in the Content Areas with an emphasis on
Teacher Education and Learning to Teach from the University of Colorado at Boulder. Her interests include data driven instruction,
assessment for learning, teacher education, professional development schools, and mathematics education. Her email is kuchiyam@psdschools.org.
Jean L. Radin is an adjunct professor at Colorado State University and a co-primary investigator for the Preparing Tomorrow’s Teachers to
Use Data grant. She received her Ph.D. from Colorado State University. Her interests are brain-based teaching and learning,
data driven instructional practices, teacher education and professional development schools. Her email is jradin@cahs.colorado.edu. 相似文献
7.
Cultural differences and similarities in socialization during two contrasting laboratory tasks were examined in 30 Japanese mothers and their preschoolers, both temporarily residing in the United States, and 30 U.S. mothers and their preschoolers (age: M = 55.8 months, SD = 4.9). Mother and child actions, speech, emotion, and attention were coded from videotaped observations during a free play task and waiting task. Cross-cultural comparisons showed that U.S. mothers had more conversations that emphasized individual experiences, more often acted as playmates and used joint attention, maintained more physical distance, showed more positive emotions, and made more positive responses to child accomplishment. In contrast, Japanese mothers had more conversations that emphasized shared experiences, showed more divided attention, and maintained social role distinctions. Similar, but fewer cultural differences emerged for children. However, maternal and child characteristics also varied by task context. The results suggested an emphasis on autonomy in U.S. dyads and an emphasis on relatedness in Japanese dyads, but the interactions with task context revealed the coexistence of autonomy and relatedness. 相似文献
8.
Joseph J. Campos David Witherington David I. Anderson Carl I. Frankel Ichiro Uchiyama Marianne Barbu‐Roth 《Child development》2008,79(6):1625-1632
This commentary endorses J. Kagan’s (2008) conclusion that many of the most dramatic findings on early perceptual, cognitive, and social competencies are ambiguous. It supports his call for converging research operations to disambiguate findings from single paradigms and single response indices. The commentary also argues that early competencies must be placed into a longitudinal framework, thereby allowing researchers to (a) identify whether regressive phenomena play a role in skill development, (b) understand what functions (if any) given skills play in their precocious manifestations and whether these functions are comparable in later instantiations of skills, and (c) avoid rich interpretations by identifying how robust a suspected competency is across contexts. 相似文献
9.
Despite its essential role in educational reform, professional development typically does not receive adequate support in systemic reform efforts. This article presents an exception—a state that incorporated professional development as a central priority in its reform effort and four schools that used state resources to build their capacity for enacting the reform agenda. We describe central features of Kentucky's approach to professional development, characterize elements of professional development within the four schools, and discuss how these elements promoted three dimensions of school capacity: individual teachers’ knowledge, skills, and dispositions; professional community; and program coherence. Based on this “image of the possible,” we offer recommendations for professional development that supports systemic, standards-based educational reform. 相似文献
10.
Iida H Kato S Sekino Y Sakai E Uchiyama T Endo H Hosono K Sakamoto Y Fujita K Yoneda M Koide T Takahashi H Tokoro C Goto A Abe Y Kobayashi N Kubota K Gotoh E Maeda S Nakajima A Inamori M 《Journal of Zhejiang University. Science. B》2012,13(1):29-34