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101.
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Mário Hebling Campos Nayane Martins Giraldi Paulo Gentil Claudio Andre Barbosa de Lira Carlos A. Vieira Marcelo Costa de Paula 《Journal of sports sciences》2017,35(12):1134-1141
This study analysed the behaviour of the geometric curvature of the spine during sirshasana. The position of dorsal retroreflective markers was computed via stereophotogrammetric analysis in six males and five females (29.4 ± 8.8 years, 63.0 ± 11.4 kg, 1.66 ± 0.08 m [average ± standard deviation]). The spinal points were projected onto the sagittal and frontal planes of the trunk, a polynomial was fitted to the data and the two-dimensional geometric curvature was quantified. The inferior lumbar lordosis decreased compared to the orthostatic position and gait, which may favour the posterior protrusion of the lumbar spinal nucleus pulposus in people with posterior herniation. The lateral deviation at the middle of the thoracic spine increases during sirshasana, which may reflect increased difficulties for postural control and spinal loads. It could be useful for promoting positive spinal structural and functional chronic adaptations for healthy participants, if the yoga programme is carefully planned and the spinal alignment is carefully monitored during a headstand. However, it may aggravate some spinal diseases, especially scoliosis. 相似文献
103.
Jackson Nancy Ewald Chen Huanwen Goldsberry Lonie Kim Ahyoung Vanderwerff Carla 《Reading and writing》1999,11(4):345-379
Orthographies vary in the support they provide for word identification based on grapheme-phoneme correspondences. If skills developed in acquisition of first-language (L1) reading transfer to reading English as a foreign language (EFL), the extent to which EFL readers' word identification shows reliance on information other than grapheme-phoneme correspondences could be expected to vary with whether their L1 orthography is a non-Roman alphabet such as Korean hangul or a nonalphabetic (morpho-syllabic) system such as Chinese characters. Another influence could be whether EFL readers have learned to read a morpho-syllabic L1 by means of an alphabetic transliteration. English text reading speeds and oral reading quality ratings of three groups of adult Asian EFL readers attending an American university were compared with those of two groups of American L1 readers: Graduate student peers and eighth-grade students. All EFL groups read more slowly than both groups of L1 readers, and their reading was more impaired when orthographic cues were disrupted by mixed case print or pseudohomophone spellings. Some of these effects were reduced in EFL readers from Hong Kong, who had earlier exposure to English. Contrary to previous findings, no effects could be attributed to type of first orthography or early exposure to alphabetic transliteration of Chinese characters, which differentiated the Taiwanese and Hong Kong groups. As a whole, the results suggest that, at least across the L1 groups studied, differences in EFL word reading are associated less with type of L1 orthography than with history of exposure to English. 相似文献
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This article relays results of a study focused on questions invoked to correct declarative knowledge deficits while readers process science texts explaining natural phenomena. Firstly, the authors focused on finding out what kind of questions are asked by students who read these texts and, secondly how task demand influences quantity and quality of formulated questions. Two hundred and eighty nine Portuguese students from 8th, 10th, and 12th grade participated in the study. The students were instructed to ask questions on two short science paragraphs that explained natural phenomena. Three task conditions were chosen. Thus, in the “Class” condition, the task was introduced as an activity aimed at developing the capacity to ask questions. In the “Examination” condition, the task was presented as a test on question generation. Finally, in the “Extra‐academic” condition the questioning task was camouflaged as a participation in a research project sponsored by the Ministry of Education and geared at the improvement of science textbooks. The results have shown that students are able to ask many questions when given an opportunity to do so. The study has also proven that students are capable of generating a large volume of causal‐antecedent questions relative to this kind of texts. Finally, no clear effects were found between grade level and/or task demand as defined in the conducted study. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 602–614, 2000 相似文献
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A multi-ethnic sample of 248, ages 13–26, was used to examine the effects of age, gender, and ethnic group membership on ethnic identity and ego identity scores. Subjects were recruited from college and public schools in a large northeastern metropolitan area. The multigroup ethnic identity measure (MEIM) was used to assess ethnic identity and ego identity status was measured by the extended objective measure of ego identity status (EOMEIS). An age by ethnic group design was employed. Consistent findings of significant ethnic group differences in levels of ethnic identity were observed. Age and ethnic group were found to contribute differently to ethnic identity and ego identity status. The relationship between ethnic identity and ego identity status was found to be pronounced among subjects of color but not as dramatic as hypothesized. 相似文献
107.
Recent literature suggests that, like midrange eating disorders among college women, male muscle dysmorphia is emerging as a physical as well as a health concern among college men. The authors define the disorder, review diagnostic and etiological considerations, and discuss the added complication of creatine use to self‐manage muscle dysmorphic symptoms. Implications for the college counseling practice are presented, and the need for a reliable knowledge base to guide practice is emphasized. 相似文献
108.
The purpose of this study was to test methods that strengthen the comparability claims about annual determinations of student proficiency in English language arts, math, and science (Grades 3–12) in the New Hampshire Performance Assessment of Competency Education (NH PACE) pilot project. First, we examined the literature in order to define comparability outside the bounds of strict score interchangeability and explored methods for estimating comparability that support a balanced assessment system for state accountability such as the NH PACE pilot. Second, we applied two strategies—consensus scoring and a rank‐ordering method—to estimate comparability in Year 1 of the NH PACE pilot based upon the expert judgment of 85 teachers using 396 student work samples. We found the methods were effective for providing evidence of comparability and also detecting when threats to comparability were present. The evidence did not indicate meaningful differences in district average scoring and therefore did not support adjustments to district‐level cut scores used to create annual determinations. The article concludes with a discussion of the technical challenges and opportunities associated with innovative, balanced assessment systems in an accountability context. 相似文献
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