排序方式： 共有4条查询结果，搜索用时 15 毫秒
1
1.
The six members of the Gulf Co-operation Countries (GCC)—Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates—are facing enormous environmental challenges associated with rapid urbanisation and industrialisation, especially in the last three decades, due to its role as a global hydrocarbon energy centre. None of these countries have systematic and specialised academic programmes with the sole purpose of Environmental Engineering Education (E3). The current status of E3 in the universities across the region is surveyed and thus the individual and collective higher education policies towards environmental affairs are highlighted. The E3 policies of the regional universities are then compared to the benchmark status of the European and the US universities. The ABET criteria are used to evaluate non-E3 programs. The survey shows that the environmental engineering subjects were mostly taught under the umbrella of civil or chemical engineering departments in the GCC countries. An educational scheme for E3 in the GCC higher education institutes is proposed that is based on the evolution of E3 approach in the Western universities. 相似文献
2.
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
3.
Rao AQ Hussain SS Shahzad MS Bokhari SY Raza MH Rakha A Majeed A Shahid AA Saleem Z Husnain T Riazuddin S 《Journal of Zhejiang University. Science. B》2006,7(4):291-298
Wild cotton species can contribute a valuable gene pool for agronomically desirable cultivated tetraploid cultivars. In order to exploit diploid cotton a regeneration system is required to achieve transformation based goals. The present studies aimed at optimizing the conditions for regeneration of local varieties as well as wild species of cotton. Different callus induction media were tested with varying concentrations of hormones in which sucrose was used as nutritional source. Different explants （hypocotyls, cotyledon, root） were used to check the regeneration of both local cotton plants and wild relatives using T ＆ G medium, BAP medium, CIM medium, EMMS medium, and cell suspension medium. Different stages of embryogenicity such as early torpedo stage, late torpedo stage, heart stage, globular stage and cotyledonary stage were observed in wild relatives of cotton. The results of this study pave the way for establishing future transformation methods. 相似文献
4.
This article reports a study of lower secondary mathematics classroom learning environment in Brunei Darussalam and its association
with students' satisfaction with learning mathematics among a sample of 1565 students from 81 classes in 15 government secondary
schools. Students' perceptions of the classroom learning environments were assessed with a version of the My Class Inventory
(MCI) that had been modified for the Brunei context. The study revealed a satisfactory factor structure for a refined three-scale
version of the MCI assessing cohesiveness, difficulty and competition. This finding is noteworthy because the factorial validity
of the MCI has not previously been established in past research in other countries. Also each scale displayed satisfactory
internal consistency reliability and discriminant validity and was able to differentiate between the perceptions of students
in different classes. A one-way MANOVA revealed that students generally perceived a positive learning environment in mathematics
classes. Also the study supported earlier research suggesting that boys and girls hold different perceptions of the same classroom
learning environments. Relationships between student satisfaction and classroom environment were investigated using simple
and multiple correlation analyses, using both the individual student and class mean as units of analysis. Associations between
satisfaction and the learning environment were statistically significant both at student and class levels for most MCI scales.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
1