排序方式： 共有108条查询结果，搜索用时 15 毫秒
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Cieszczyk P Ostanek M Leońska-Duniec A Sawczuk M Maciejewska A Eider J Ficek K Sygit K Kotarska K 《Journal of sports sciences》2012,30(1):31-35
The aims of this study were to determine the distribution of the AMPD1 genotype among groups of high-level Polish power-oriented athletes, and to investigate potential associations between genetic polymorphism in exon 2 of the AMPD1 gene and power-oriented athlete status. Altogether, 158 male Polish power-oriented athletes were genotyped by PCR-RFLP. The genetic control group comprised 160 unrelated male volunteers. We observed significant differences in genotype distribution when all 158 athletes (89.25% CC, 10.75% CT, 0.00% TT; P = 0.0025) were compared with controls (75.00% CC, 23.75% CT, 1.25% TT). A significant deficiency of the T allele was noted in all subgroups (short-distance runners: 5.21%, P = 0.032; short-distance swimmers: 5.56%, P = 0.031; weightlifters: 5.36%, P = 0.024) compared with controls (13.13%), while this trend was even stronger when the frequency of the T allele was compared between controls and all 158 athletes (5.38%, P = 0.0007). Our results indicate a lower frequency of the AMPD1 exon 2 T34 allele in elite Polish power-oriented athletes. Our data suggest that the C allele may help athletes to attain elite status in power-oriented sports. 相似文献
83.
Piotr Leszczyński Anna Charuta Beata Łaziuk Robert Gałązkowski Arkadiusz Wejnarski Magdalena Roszak 《Interactive Learning Environments》2018,26(2):151-162
The aim of the study was to conduct a comparative analysis of three forms of knowledge transfer online, taking into account the long-term knowledge growth rate and the satisfaction of students surveyed in respect to distance learning. The cohort of participants for this survey were students of the first degree, studying in the Emergency Medical Services. The authors created three e-learning courses in basic and advanced resuscitation procedures. The level of course participants’ satisfaction was analysed, as well as the knowledge growth rate measured three times: 7, 30 and 90 days, respectively, after finishing the course. The level of satisfaction in all the groups surveyed was comparable. The growth rate for knowledge was the highest in group C in the second and third survey, respectively (30 and 90 days after the end of the course), and a significant difference in favour of course C was demonstrated one month after finishing classes. 相似文献
84.
Magdalena Andrzejewska Anna Stolińska Władysław Błasiak Paweł Pęczkowski Roman Rosiek Bożena Rożek 《Interactive Learning Environments》2016,24(8):1981-1995
The results of qualitative and quantitative investigations conducted with individuals who learned algorithms in school are presented in this article. In these investigations, eye-tracking technology was used to follow the process of solving algorithmic problems. The algorithmic problems were presented in two comparable variants: in a pseudocode and flowchart. The eye-tracking data resulted in both qualitative (films registering the gaze paths) and quantitative measures, which allowed the detection and interpretation of the differences in the task-solving strategies between those who found the correct answer and those that did not. The results confirmed a hypothesis that use of the formal notation characteristic of a programming language for presenting algorithms is often a practical difficulty in the process of solving even simple tasks. This study opens a new direction of research; they show that eye-tracking technology can be used to optimise the educational process of learning programming. 相似文献
85.
Macarena Santana Miguel Nussbaum Raimundo Carmona Susana Claro 《Journal of research on educational effectiveness》2019,12(2):251-273
There is a consensus that family involvement is key to academic achievement. However, it is often difficult to keep parents involved, particularly when they lack the time or academic knowledge. The aim of this study is to evaluate the impact on achievement in mathematics among adolescent children when involving parents from low-income communities in the learning process. This involvement is achieved through activities that do not include any formal curricular content. A randomly selected group of parents was nudged, via text message (SMS), to complete short and simple weekly activities with their children. The teacher then connected these activities to the curricular content in class. The results reveal that, on average, the intervention increased the students’ math grade point average (GPA) by 0.488 standard deviations (p?相似文献
86.
J. Enrique Hinostroza Andrea I. Ibieta Magdalena Claro Christian Labbé 《Education and Information Technologies》2016,21(6):1595-1610
Teachers’ use of ICT has mainly focused on their use in classroom context and few studies have focused on their use elsewhere. Attempting to fill this gap, this paper presents a case study of 12 secondary teachers characterising their use of ICT in and out-of-the-classroom. Results show that teachers use these tools inside the classroom for presentations and support some instructional strategies and outside the classroom for lesson preparation, administration and communication, and design of students’ assignments with ICT. However, the analysis of the specific characteristics of these activities shows that beyond these apparently good purposes of ICT use, the quality of the characteristics of the activities is heterogeneous, which can have implications in the effectiveness of the use of ICT in teaching and learning. Based on this, we suggest that in order to take full advantage of the teaching and learning opportunities associated to use of digital tools in education, there is a need to develop teachers’ and students’ digital skills, specifically those associated to searching and selecting information available in the Internet, and developing and presenting information products. 相似文献
87.
The School Entry Gap: Socioeconomic, Family, and Health Factors Associated With Children's School Readiness to Learn 总被引：1，自引：0，他引：1
Notwithstanding the constant debate in the scientific and policy literature on the precise meaning of school readiness, research consistently demonstrates a wide variation between groups of children resulting in a gap at school entry. Recently, the teacher-completed Early Development Instrument (EDI), a new measure of children's school readiness in 5 developmental areas, was developed, tested, and implemented in Canada. EDI results confirmed the existence of a school entry gap. In this article, we explore factors in 5 areas of risk: socioeconomic status, family structure, child health, parent health, and parent involvement in literacy development. In a series of logistic regressions, we demonstrate that variables in all 5 areas, as well as age and gender, contribute to the gap. Child's suboptimal health, male gender, and coming from a family with low income contribute most strongly to the vulnerability at school entry. As the purpose of a tool like the EDI is primarily to assist in population-level reporting on children's school readiness, the results of our study provide additional and much-needed evidence on the instrument's sensitivity at the individual level, thus paving the way for its use in interpreting children's school readiness in the context of their lives and the communities in which they live. 相似文献
88.
The authors' purpose was to determine which form of therapeutic aid may influence academic approach and avoidance motivation in children with dyslexia. There were 165 children with dyslexia assessed with the use of ”I and my school” questionnaire. The authors considered the children's previous therapeutic experience and on its basis they were divided into three groups. Children receiving systematic therapeutic treatment display a significantly higher level of academic approach motivation as compared to those from the two other groups. Those children also manifest a lower level of academic avoidance motivation compared to those receiving no form of specialist treatment. Girls, regardless of their therapeutic experience, demonstrate a higher level of approach motivation; boys, on the other hand, display a higher level of avoidance motivation. The study shows that the quality of provided therapeutic aid affects emotional-motivational sphere of children with dyslexia. Systematic therapeutic aid increases academic approach motivation and reduces avoidance motivation. 相似文献
89.
Magdalena Jaroszewska 《Higher Education in Europe》1999,24(3):405-413
Beginning with a discussion of the need for and the criteria of quality assessment and accreditation in higher education, the author gives a rapid survey of western European practice. She then introduces the Polish situation in which two organizations have proposed higher education evaluation and accreditation systems: the General Council for Higher Education and the Institute of Contemporary Civilisation. Both organizations have developed pilot projects with selected Polish higher education institutions. The author summarizes the criteria and procedures of the evaluation systems of both organizations. She concludes by mentioning the results of a recent Polish‐American Seminar on Accreditation and Quality Assessment. 相似文献
90.
Ana Claro Maria J. Melo J.Sérgio Seixas de Melo Klaas Jan van den Berg Aviva Burnstock Meredith Montague Richard Newman 《Journal of Cultural Heritage》2010,11(1):27-34
Red lake pigments and dyes used in works of art were characterized by microspectrofluorimetry, a new tool in the field of cultural heritage. Emission and excitation spectra were obtained with high spatial resolution (8–30 μm) in cross-sections from paintings by Vincent van Gogh and Lucien Pissarro and from millenary Andean textiles. The fluorophores were identified by comparing their spectra with those from historic reconstructions assembled in a database. In the paints, purpurin and eosin lakes were detected. In the Paracas and Nasca textiles, dated from 200 B.C. to A.D.1476, purpurin and pseudopurpurin were the red dyes used. Carminic acid was detected in textiles dated close to the Inca Empire, A.D. 1000–1476. The results obtained with this new technique were confirmed and are in agreement with those obtained with conventional methods, requiring microsampling, such as HPLC-DAD-MS and SEM-EDX. 相似文献