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The authors examined the relationships among students' levels of boredom, boredom coping strategies, epistemic curiosity, and graded performance regarding mathematics lessons, with the intention to explore the mediating roles of boredom coping strategies and epistemic curiosity in the relationship between the level of boredom and graded performance. A total of 557 students from a small city located in the Western Black Sea region of Turkey voluntarily participated in the study. Of them, 211 enrolled in an Anatolian high school and 346 enrolled in a science high school. Results showed that the level of boredom, boredom coping strategies, epistemic curiosity, and graded performance were significantly related to each other. Results also showed that deprivation-type epistemic curiosity and interest-type epistemic curiosity played significant mediating roles in the relationship between the level of boredom and graded performance. Notably, the mediating roles of interest-type epistemic curiosity and deprivation-type epistemic curiosity differed across gender groups. 相似文献
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Meltem Kilercik Abdurrahman Coskun Mustafa Serteser Deniz Inan Ibrahim Unsal 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2014,24(1):138-145
Background:
The ultra-large von Willebrand factor (vWF) multimers are very active and must be degraded by ADAMTS13 for optimal activity. A severe functional deficiency of ADAMTS13 has been associated with thrombotic thrombocytopenic purpura. The correct interpretation of patient vWF and ADAMTS13 plasma levels requires an understanding of the biological variation associated with these analytes. In the present paper, we aimed to determine the biological variation of ADAMTS13 and vWF in human adults.Materials and methods:
Blood samples were collected weekly from 19 healthy subjects for 5 consecutive weeks. vWF activity and antigenicity were determined using aggregometric and immunoturbidimetric methods. ADAMTS13 antigenicity and activity were determined by ELISA.Results:
The within-subject biological variations for vWF activity and antigenicity were 8.06% and 14.37%, respectively, while the between-subject biological variations were 18.5% and 22.59%, respectively. The index of individuality for vWF activity was 0.44, while vWF antigenicity was 0.64. Similarly, ADAMTS13 activity and antigenicity within-subject biological variations were 12.73% and 9.75%, respectively, while between-subject biological variations were 9.63% and 6.28%, respectively. The ADAMTS13 indexes of individuality were 1.32 and 1.55, respectively.Conclusion:
We report high biological variation and individuality in vWF antigenicity and activity levels. However, ADAMTS13 antigenicity and activity displayed high biological variation, but low individuality. Thus, population-based reference intervals may be useful for monitoring ADAMTS13 antigenicity and activity, but not for vWF, which displays high individuality. These findings should be considered when determining the reference interval and other clinical variables associated with ADAMTS13 and vWF levels. 相似文献4.
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为了解决图像检索中颜色直方图无法描述颜色空间位置信息的问题,提出了一种新的基于色彩量化的凸壳内角直方图特征.针对量化后HSV颜色空间中某一具体量化颜色值对应像素点的空间分布,首先计算包含这些像素点位置信息的凸壳,并对该凸壳的所有内角建立直方图.然后处理所有量化颜色值提取整幅图像的凸壳内角直方图特征.将该方法和一些文献中提出的方法进行的比较实验结果表明:提出的新特征可以有效地描述颜色空间位置信息,在查准率和查全率指标上均优于已有文献中的一些方法. 相似文献
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Canan A. Agirtan Taner Akar Seher Akbas Recep Akdur Cahide Aydin Gulsen Aytar Suat Ayyıldız Sevgi Baskan Tugba Belgemen Ozdecan Bezirci Ufuk Beyazova Fatma Yucel Beyaztas Bora Buken Erhan Buken Aysu D. Camurdan Demet Can Sevgi Canbaz Gurol Cantürk Meltem Ceyhan Abdulhakim Coskun Kadriye Yurdakok 《Child abuse & neglect》2009,33(4):247-255
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The purpose of this research is to show how wearable eye-tracking technology can be employed to assess and enhance classroom management skills by analyzing the instructors’ eye movements in a university. The research also aimed to evaluate the instructors’ gestures by recording with a video camera synchronized with the eye-tracking data. The findings showed that the wearable eye tracker gives informative feedback about the visual attention of the instructors. It provided meaningful data by video recordings and Retrospective Think Aloud sessions. Also, it demonstrated how the instructors interacted with classroom technology. Consequently, the wearable eye tracker and video-camera together could be used by Teaching/Learning Centers to improve instructors’ classroom management skills and to observe their interaction with instructional technologies.
相似文献10.
Dawn X. Henderson Kevin Washington Sahran Hamit Sarah J. Ford Kierra Jenkins 《The Urban Review》2018,50(4):675-692
Black and Latino students and the educators who serve as their advocates must be resilient in a highly contentious and racialized public education system. Modeling resilience in the public education system relies on individual assets and the extent to which one’s school possesses the resources and support needed to cultivate such assets. This study used interviews and site observations to explore the degree to which educators and students model resilience in an alternative education program. Findings suggest educators engage a sense of agency when they advocate for inclusion of Black and Latino students. In addition, an alternative education context can provide resources and cultivate strong relationships, a sense of self-efficacy and future orientation among educators and students. These findings highlight the assets educators and advocates need and the programs required to promote resilience in the public education system. 相似文献