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排序方式: 共有87条查询结果,搜索用时 31 毫秒
51.
A total of 366 UK children in four different schools, one in Wales, one in Northern Ireland, and two in England, were asked to respond to 20 potentially stressful life experiences. Each event was rated on a scale ranging from 7 (the most upsetting) to 1 (the least), and the scale value and interquartile range were calculated. In addition, whether or not a given event was actually experienced was noted. Across the groups, there was a very high degree of agreement on all three measures, the median correlations being 0.95 for scale values, 0.70 for interquartile ranges, and 0.92 for incidence. Furthermore, the pooled UK results were found to correlate equally closely with the figures previously obtained in the USA and five other countries. The possibility of a prevalent ‘culture of childhood’, cutting across geo‐political boundaries and ethnic groupings, appears to receive further support. 相似文献
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In this paper, we review research on parental expectations and their effects on student achievement within and across diverse
racial and ethnic groups. Our review suggests that the level of parental expectations varies by racial/ethnic group, and that
students' previous academic performance is a less influential determinant of parental expectations among racial/ethnic minority
parents than among European American parents. To explain this pattern, we identify three processes associated with race/ethnicity
that moderate the relation between students' previous performance and parental expectations. Our review also indicates that
the relation of parental expectations to concurrent or future student achievement outcomes is weaker for racial/ethnic minority
families than for European American families. We describe four mediating processes by which high parental expectations may
influence children's academic trajectories and show how these processes are associated with racial/ethnic status. The article
concludes with a discussion of educational implications as well as suggestions for future research. 相似文献
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Takuya Sekiguchi Haruki Momma Masahiro Tsuchiya Kaoru Kuroki Kenji Kanazawa 《Journal of sports sciences》2018,36(16):1801-1807
Youth athletes are known to be at high risk of musculoskeletal (MSK) injuries. Children in developed countries are increasingly adopting a sedentary lifestyle. Although some risk factors related to sports activities have been reported, the effect of lifestyle (i.e. screen time behaviour) on MSK pain in youth athletes is not well known. This study aimed to examine the association of game playing and TV viewing with MSK pain among youth athletes. A self-administered questionnaire was mailed to youth athletes belonging to the Miyagi Amateur Sports Association. The final study population included 6,143 youth athletes (male, 71.1%; age range, 6–15 years). Multiple logistic regression analysis was used to examine the association of game playing and TV viewing behaviour with MSK pain. The point prevalence of MSK pain was 25.5%. The longest category of game playing time (≥3 h) was significantly associated with MSK pain as compared with the shortest category (<1 h) (odds ratio, 1.39; 95% confidence interval, 1.12–1.73, p = 0.003). There was no significant association between TV viewing time and MSK pain. These results suggest that game playing time might be an associated factor for MSK pain among youth athletes. 相似文献
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Hanno Steinke Toshiyuki Saito Gudrun Herrmann Takayoshi Miyaki Niels Hammer Mara Sandrock Masahiro Itoh Katharina Spanel‐Borowski 《Anatomical sciences education》2010,3(5):254-260
Gross dissection for demonstrating anatomy of the human pelvis has traditionally involved one of two approaches, each with advantages and disadvantages. Classic hemisection in the median plane through the pelvic ring transects the visceral organs but maintains two symmetric pelvic halves. An alternative paramedial transection compromises one side of the bony pelvis but leaves the internal organs intact. The authors propose a modified technique that combines advantages of both classical dissections. This novel approach involves dividing the pubic symphysis and sacrum in the median plane after shifting all internal organs to one side. The hemipelvis without internal organs is immediately available for further dissection of the lower limb. The hemipelvis with intact internal organs is ideal for showing the complex spatial relationships of the pelvic organs and vessels relative to the intact pelvic floor. Anat Sci Educ 3:254–260, 2010. © 2010 American Association of Anatomists. 相似文献
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Yamamoto YT 《Public understanding of science (Bristol, England)》2012,21(1):101-125
In contentious natural resource debates, the credibility of scientists is at risk. In this case study, citizens in contending communities and scientists in a forest management controversy constructed the scientists' credibility differently. Shared values and views of the nature of science and objectivity were primary factors for constructing scientists' credibility. Citizens who expected value-free, objective scientists to authenticate their knowledge were concerned about how the values of scientists on the opposite side affected research framing. Citizens who emphasized limited objectivity were less skeptical of scientists. Scientists acknowledged their values but defended their credibility in terms of professional standards, balance and resource constraints. In short, scientists' credibility is relative because each individual has unique values and views of the nature of science and objectivity. Through a collaborative policymaking process, citizens and scientists should develop shared values and visions to reconstruct a temporary, intersubjective sense of credibility. 相似文献
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Toshinori Yoshihara Takao Sugiura Nobuyuki Miyaji Yuki Yamamoto Tsubasa Shibaguchi Ryo Kakigi Hisashi Naito Katsumasa Goto Daijiro Ohmori Toshitada Yoshioka 《Journal of Zhejiang University. Science. B》2018,19(11):844-852
We examined the effect of a combination of astaxanthin (AX) supplementation, repeated heat stress, and intermittent reloading (IR) on satellite cells in unloaded rat soleus muscles. Forty-nine male Wistar rats (8-week-old) were divided into control, hind-limb unweighting (HU), IR during HU, IR with AX supplementation, IR with repeated heat stress (41.0–41.5 °C for 30 min), and IR with AX supplementation and repeated heat stress groups. After the experimental period, the antigravitational soleus muscle was analyzed using an immunohistochemical technique. Our results revealed that the combination of dietary AX supplementation and heat stress resulted in protection against disuse muscle atrophy in the soleus muscle. This protective effect may be partially due to a higher satellite cell number in the atrophied soleus muscle in the IR/AX/heat stress group compared with the numbers found in the other groups. We concluded that the combination treatment with dietary AX supplementation and repeated heat stress attenuates soleus muscle atrophy, in part by increasing the number of satellite cells. 相似文献