Age-Dependent Changes in Glutathione-S-Transferase: Correlation with Total Plasma Antioxidant Potential and Red Cell Intracellular Glutathione     

Maurya PK  Rizvi SI 《Indian journal of clinical biochemistry : IJCB》2010,25(4):398-400

The correlation between antioxidant capacity and oxidative damage during aging has been reported in several tissues in different species. Glutathione-S-transferases (GST) can metabolise endogenous and exogenous toxins and carcinogens by catalysing the conjugation of diverse electrophiles with reduced glutathione (GSH). We observe a significant (P < 0.001) increase in plasma GST activity as a function of human age (r = 0.5675). A significant (P < 0.001) positive correlation (r = 0.8979) is observed between GST activity and total plasma antioxidant potential measured as ferric reducing ability of the plasma (FRAP). GST activity and red cell intracellular GSH also show a significant positive correlation (r = 0.7014). We hypothesize that the increased activity of plasma GST is a manifestation of increased generation of ROS and a concomitant decrease in the level of plasma antioxidant capacity during aging.  相似文献   

Building a customized module for the treatment of drug addiction under the remedial programs to be implemented on inmates at the drug rehabilitation centers in Malaysia     

Jamaludin Ahmad Tajularipin Sulaiman Saifuddin Kumar Abdullah Junaidi Shamsuddin 《美中教育评论》2009,6(11):57-64

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Learning materials recommendation using good learners’ ratings and content-based filtering   总被引：1，自引：0，他引：1  

Khairil Imran Ghauth  Nor Aniza Abdullah 《Educational technology research and development : ETR & D》2010,58(6):711-727

The enormity of the amount of learning materials in e-learning has led to the difficulty of locating suitable learning materials for a particular learning topic, creating the need for recommendation tools within a learning context. In this paper, we aim to address this need by proposing a novel e-learning recommender system framework that is based on two conceptual foundations—peer learning and social learning theories that encourage students to cooperate and learn among themselves. Our proposed framework works on the idea of recommending learning materials with a similar content and indicating the quality of learning materials based on good learners’ ratings. A comprehensive set of experiments were conducted to measure the system accuracy and its impact on learner’s performance. The obtained results show that the proposed e-learning recommender system has a significant improvement in the post-test of about 12.16% with the effect size of 0.6 and 13.11% with the effect size of 0.53 when compared to the e-learning with a content-based recommender system and the e-learning without a recommender system, respectively. Furthermore, the proposed recommender system performed better in terms of having a small rating deviation and a higher precision as compared to e-learning with a content-based recommender system.  相似文献   

Higher education in Federally Administered Tribal Areas of Pakistan after 9/11： Problems and prospects     

Syed Hafeez Ahmad Fatima A. Junaid 《美中教育评论》2010,7(5):55-65

The troubled state of affairs in the Federally Administered Tribal Areas （FATA） of Pakistan portends serious repercussions and grave consequences, destined to affect education particularly higher education in the entire tribal belt. Ironically, no extensive study has been conducted, to investigate those dimensions of FATA higher education which have been adversely affected in the aftermath of 9/11. This exploratory study examines those areas which have been badly affected as a result of current turmoil. In fact, the higher education in FATA has its own peculiar dynamics. Inherently, the entire tribal region has very few well-maintained and properly equipped colleges. Lack of adequate educational facilities, multiplied poor security environment has aggravated the entire situation. Law and order situation in the region has undermined the already dilapidated monitoring mechanism of education department. This state of affairs provides breeding ground for extremist propensities and radical tendencies. In reality, very little attention has been devoted to reform the education system in tribal areas. The whole set up needs to be rehabilitated by taking recourse due to the proactive role of international community. The paper concludes with recommendations for policy makers besides offering new avenues for further research.  相似文献   

民族地区突发事件的特殊性与应急管理体系研究   总被引：1，自引：0，他引：1  

李树林  莎日娜 《广播电视大学学报》2010,(2):99-103

我们要结合民族地区特殊的区情,认真分析民族地区突发事件的特殊性,准确把握突发事件的表现形态与特征,根据突发事件产生的原因,认真解决民族地区面临的各种突发事件。围绕国家对于应急管理的＂一案三制＂的制度设计,尽快构建和完善适合我国民族地区实际情况的应急管理体系。重点是提高民族地区各级政府应对和处理各种突发事件的能力,以保证我国少数民族人民的生命安全和少数民族地区经济社会的可持续发展。  相似文献   

Segmentation techniques for recognition of Arabic-like scripts: A comprehensive survey     

Saeeda Naz  Arif I. Umar  Syed H. Shirazi  Saad B. Ahmed  Muhammad I. Razzak  Imran Siddiqi 《Education and Information Technologies》2016,21(5):1225-1241

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Stress intensity factors under combined bending and torsion moments     

Al?Emran?IsmailEmail author  Ahmad?Kamal?Ariffin  Shahrum?Abdullah  Mariyam?Jameelah?Ghazali  Mohammed?Abdulrazzaq  Ruslizam?Daud 《浙江大学学报(A卷英文版)》2012,13(1):1-8

This paper discusses stress intensity factor (SIF) calculations for surface cracks in round bars subjected to combined torsion and bending loadings. Different crack aspect ratios, a/b, ranging from 0.0 to 1.2 and relative crack depths, a/D, ranging from 0.1 to 0.6 were considered. Since the loading was non-symmetrical for torsion loadings, a whole finite element model was constructed. Then, the individual and combined bending and torsion loadings were remotely applied to the model. The equivalent SIF method, F*_EQ, was then used explicitly to combine the individual SIFs from the bending and torsion loadings. A comparison was then carried out with the combined SIF, F*_FE, obtained using the finite element analysis (FEA) under similar loadings. It was found that the equivalent SIF method successfully predicted the combined SIF for Mode I. However, discrepancies between the results determined from the different approaches occurred when F _III was involved. It was also noted that the predicted F*_FE using FEA was higher than the F*_EQ predicted through the equivalent SIF method due to the difference in crack face interactions.  相似文献   

A “research” into international student-related research: (Re)Visualising our stand?     

Doria Abdullah  Mohd Ismail Abd Aziz  Abdul Latiff Mohd Ibrahim 《Higher Education》2014,67(3):235-253

This paper uses Tight (High Educ Res Dev 23(4):395–411, 2004; High Educ Res Dev 31(5):723–740, 2012; High Educ Res Dev 32(1):136–151, 2013)’s journal analysis and review framework to review a sample of 497 journal articles on researches concerning international students over the past 30 years. It was found that a majority of the articles focus on the students’ in-campus, academic and social experience. Even with different conceptualisation of the terms “international student” and “international student mobility”, international students undergo similar challenges throughout their sojourn duration, and much of the responsibilities in managing international students fall on universities and respective faculty members within the institutions. It might seem as if we are going in circles in terms of the issues and concerns in managing international students, but the silver lining out of this observation is the increased ethnical awareness among countries and higher education institutions in hosting and safeguarding the students throughout their international higher education experience, albeit rather slowly. The analysis brings to attention how much have we achieved in internationalisation of higher education in general and international student-related research in particular, and the potential for greater expansion and focus on managing the student population within a comprehensive “life cycle” approach.  相似文献   

Academics transformational leadership: an investigation of heads of department leadership behaviours in Malaysian public universities     

Lokman Tahir  Tina Abdullah  Fadzli Ali  Khadijah Daud 《Educational studies》2014,40(5):473-495

Presently, the role and the function of universities in Malaysia have been described as being in a state of change. Several strategies have been adopted to assist in the re-branding of higher institutions of learning. As a consequence, an effective model of leadership practices, particularly at the Malaysian academic departmental level, has to be generated in order to replace the traditional leadership practices in meeting the national aspirations. The purpose of this study was to investigate the relationship between department heads’ leadership behaviour with academics’ organisational commitment. Survey responses from 430 academics from Malaysian public universities were received and analysed. The main finding of this study reveals that the adoption of encouraging leadership behaviour (Kouzes and Posner’s Transformational Leadership) shows a 55% direct positive relationship with academics’ organisational commitment, with demographical factors playing no role as a moderator with either variable. This reinforces the rationalisation for adopting the model within the Malaysian academic setting, where department heads should indeed lead the academic organisation.  相似文献   

Development of lanthanum strontium cobalt ferrite composite cathodes for intermediate- to low-temperature solid oxide fuel cells     

Nurul Akidah BAHARUDDIN  Hamimah Abd RAHMAN  Andanastuti MUCHTAR  Abu Bakar SULONG  Huda ABDULLAH 《浙江大学学报(A卷英文版)》2013,14(1):11-24

Solid oxide fuel cells(SOFCs) offer high energy conversion,low noise,low pollutant emission,and low processing cost.Despite many advantages,SOFCs face a major challenge in competing with other types of fuel cells because of their high operating temperature.The necessity to reduce the operational temperature of SOFCs has led to the development of research into the materials and fabrication technology of fuel cells.The use of composite cathodes significantly reduces the cathode polarization resistance and expands the triple phase boundary area available for oxygen reduction.Powder preparation and composite cathode fabrication also affect the overall performance of composite cathodes and fuel cells.Among many types of cathode materials,lanthanum-based materials such as lanthanum strontium cobalt ferrite(La1-xSrxCo1-yFeyO3- have recently been discovered to offer great compatibility with ceria-based electrolytes in performing as composite cathode materials for intermediate-to low-temperature SOFCs(IT-LTSOFCs).This paper reviews various ceria-based composite cathodes for IT-LTSOFCs and focuses on the aspects of progress and challenges in materials technology.  相似文献