排序方式: 共有52条查询结果,搜索用时 15 毫秒
21.
Rute Santos Jorge Mota Diana A. Santos Analiza Monica Silva Fatima Baptista Luis B. Sardinha 《Journal of sports sciences》2013,31(16):1510-1518
AbstractThis study aimed to produce age- and sex-specific physical fitness reference data for Portuguese youth; to report the prevalence of youth in the healthy zone of physical fitness according to the FITNESSGRAM® criteria; to verify the agreement between the Portuguese physical fitness percentiles and the FITNESSGRAM® healthy zones. In 2008, 22,048 Portuguese children and adolescents (10–18 years) were evaluated. Physical fitness (curl-ups, push-ups, 20-m shuttle run and modified-back-saver-sit-and-reach tests) was evaluated using the FITNESSGRAM® Test Battery 8.0. Smoothed percentile curves were estimated using Cole’s LMS method. Boys consistently outperformed girls in every physical fitness test, except for the modified-back-saver-sit-and-reach tests. In both sexes and for all physical fitness tests, higher percentile values were observed at older ages. The 50th percentile of all physical fitness tests had the highest accuracy to discriminate between under healthy zone and healthy zone of the FITNESSGRAM®. Portuguese schools and physical education teachers may considerer the 50th percentile for age and sex or the FITNESSGRAM® criteria for classifying participants in the healthy zone as acceptable cut-offs, above which youth should be considered fit. These reference values can be used as normative data and for baseline values for subsequent surveillance of the physical fitness of Portuguese youth. 相似文献
22.
Mohd Azhar Abdul Razak Kai F. Hoettges Henry O. Fatoyinbo Fatima H. Labeed Michael P. Hughes 《Biomicrofluidics》2013,7(6)
Whilst laboratory-on-chip cell separation systems using dielectrophoresis are increasingly reported in the literature, many systems are afflicted by factors which impede “real world” performance, chief among these being cell loss (in dead spaces, attached to glass and tubing surfaces, or sedimentation from flow), and designs with large channel height-to-width ratios (large channel widths, small channel heights) that make the systems difficult to interface with other microfluidic systems. In this paper, we present a scalable structure based on 3D wells with approximately unity height-to-width ratios (based on tubes with electrodes on the sides), which is capable of enriching yeast cell populations whilst ensuring that up to 94.3% of cells processed through the device can be collected in tubes beyond the output. 相似文献
23.
24.
Fatima E. Terrazas-Arellanes Alejandro J. Gallard M. Lisa A. Strycker 《International Journal of Science Education》2018,40(5):498-518
The purpose of this study was to document the design, classroom implementation, and effectiveness of interactive online units to enhance science learning over 3 years among students with learning disabilities, English learners, and general education students. Results of a randomised controlled trial with 2,303 middle school students and 71 teachers across 13 schools in two states indicated that online units effectively deepened science knowledge across all three student groups. Comparing all treatment and control students on pretest-to-posttest improvement on standards-based content-specific assessments, there were statistically significant mean differences (17% improvement treatment vs. 6% control; p?.001); no significant interactions were found between treatment condition and learning disability or English learner status, indicating that these two groups performed similarly to their peers; students with learning disabilities had significantly lower assessment scores overall. Teachers and students were moderately satisfied with the units. 相似文献
25.
26.
Counseling Self-Efficacy and its Relationship to Anxiety and Problem-Solving in United Arab Emirates
Fatima?R.?Al-DarmakiEmail author 《International journal for the advancement of counseling》2005,27(2):323-335
The main purpose of this study was to examine the relationship among counseling self-efficacy, problem-solving, and state and trait anxiety. A total sample of one hundred thirteen males and females (females = 105; males = 8) enrolled in the psychology department at the UAE University voluntarily participated in this study. The Counseling Self-Estimate Inventory (COSE), Problem-Solving Inventory (PSI), and State-Trait Anxiety Inventory (STAI) were used to collect data from participants. Findings revealed significantly moderate correlations between counseling self-efficacy and both problem-solving and State and trait Anxiety. Findings are discussed within the context of UAE culture and directions for future research are provided. 相似文献
27.
Sanaa Ashour Syeda Kauser Fatima 《Journal of Higher Education Policy & Management》2016,38(5):576-591
The paper examines the inherent strengths and weaknesses of the higher education system in the United Arab Emirates (UAE). Using a literature review, three elements were examined: its development and structure, quality, and research capacity. The findings reveal that the UAE’s higher education sector has witnessed remarkable growth since 1997, guided by the state’s policy commitment, and few restrictions on foreign universities opening branches in the UAE. This situation has led to substantial growth in the supply of higher education opportunities for the Emirati and expatriate population. Despite the UAE having achieved a high ranking for ‘quality indicators’ on the global level in the World Economic Forum’s Competitiveness Reports, the quality of graduates, education, and research engagement is still debatable. Significant efforts are needed to ensure that these critical issues, as well as the understudied expansion of higher education institutions, are being addressed to erase the misalignment with the UAE’s strategic goals. 相似文献
28.
29.
Murooj L. Majeed Fadhaa A. Ghafil Ghizal Fatima Najah R. Hadi Hind F. Mahdi 《Indian journal of clinical biochemistry : IJCB》2021,36(1):74
Curcumin has a potent antioxidant and anti-inflammatory properties that may suppress inflammatory component of atherosclerosis. It has been demonstrated that curcumin derivatives can reduce the formation of arterial fatty streaks in cholesterol-fed rabbits. Therefore in this study we evaluated the protective effects of Curcumin on the progression of atherosclerosis. 20 mature rabbits were included for this study; they were randomly divided into four groups each of 5. Group 1: (normal control) were fed corn pellets diet and tab water, group 2: (high cholesterol diet control) were kept on cholesterol rich diet (2% cholesterol) and tab water. Group 3: (cholesterol and rosuvastatin treated group) were kept on cholesterol rich diet (2% cholesterol) and 2.5 mg/kg/day Rosuvastatin dispersed in DW and given orally, group 4: (cholesterol and curcumin treated group) were kept on cholesterol rich diet (2% cholesterol) and 0.2% curcumin added with corn pellets. The study continued for 12 weeks then assessment of serum level of high sensitive C-reactive protein, ICAM1, VCAM1 and PCSK9 was carried out at the end of the study. Total antioxidant activity of curcumin was also determined. Histopathological examination of aortic tissues for atherosclerotic changes was also carried out. Atherogenic (cholesterol rich diet) induced an increment in serum level of TC, LDL, VLDL and TG with concomitant decrement in serum level of HDL and increased atherogenic index. Treatment with curcumin produced substantial reduction in serum TC, LDL, TG with no effect on HDL level thus decreased atherogenic index. Rabbits treated with curcumin showed a significant reduction in the serum level of high sensitive C-reactive protein, ICAM1, VCAM, PCSK9 serum expression and aortic total antioxidant capacity. Curcumin has a potent anti-inflammatory and anti- oxidant effects against atherosclerosis so exerts a protective role by decreasing lipid oxidation and inflammatory markers. 相似文献
30.
Discrimination concerns and parental expectations were examined as mediators of the relations between gender and parenting practices among 796 African American mothers of 11‐ to 14‐year‐olds from the Maryland Adolescent Development in Context Study. Mothers of sons had more concerns about racial discrimination impacting their adolescents' future, whereas mothers of daughters had more gender discrimination concerns. Racial discrimination concerns, but not gender discrimination concerns, were related to lower maternal academic and behavioral expectations. Maternal expectations were related to mothers' responsiveness, rule enforcement, monitoring, and parent–adolescent conflict. The relations between gender and parenting practices were partially explained through mothers' racial discrimination concerns and expectations. These findings demonstrate the importance of contextual factors on African American family processes. 相似文献