排序方式： 共有38条查询结果，搜索用时 15 毫秒
1.
Mohd Roslan Mohd Nor Ummu Zainab Al-Abidah Binti Zainal Abidin Nusaibah Binti Nasaruddin 《Publishing Research Quarterly》2018,34(4):540-553
The purpose of this study is to investigate the elements of Islamic children’s books that are written in English by focusing on books that are available in the Malaysian market and published in Malaysia. This study applies the content analysis method, by examining the selected books of their subject matter as well as the language. The results of the study reveal that Islamic books written for children in English are distinctive in terms of the content and language features. 相似文献
2.
论心理学视野中的价值观教育 总被引：19，自引：0，他引：19
价值观是文化的核心要素,也是个体社会化的重要内容。我国的价值观教育长期以来被包容在德育或道德品质教育中,没有形成自己独立的概念、理论和方法学体系,直接的后果就是价值观教育泛道德化。建立价值观教育体系在目前我国教育领域有重要的理论意义和现实意义。 相似文献
3.
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
4.
Huda Karajeh Mahmoud Maqableh Lama Rajab Hiba Mohammad Tahani Khatib Nabeel Al-Qirim Ali Tarhini 《Education and Information Technologies》2018,23(5):2073-2090
This study examined impact of a social media networks course on student use of SNSs performance. Moreover, it examined the associations among course design, course materials, learning experiences and a social media networks course. Survey instrument is used to examine the relationships in the proposed model. A total of 380 questionnaires have been collected from students at the University of Jordan who studied the social media networks course. A structural equation modelling approach based on AMOS 20.0 statistical software is used to study the causal relationships and test the hypotheses between the observed and latent constructs in the proposed research model. The analysis results revealed that course materials and learning experiences directly, positively and significantly impacted the social media networks course, which in turn had a significant impact on students’ use social networks sites performance. Course design, however, did not impact the social media networks course. Our findings have important implications as we demonstrated the validity of the joint two different models and provide information about impact of studying social media networks course on students’ academic performance. 相似文献
5.
Izatus Shima Taib Siti Balkis Budin Seri Maseran Siti Nor Ain Jamaludin Mohamed Santhana Raj Louis Srijit Das Sulaiman Sallehudin Nor Fadilah Rajab Othman Hidayatulfathi 《Journal of Zhejiang University. Science. B》2009,10(11):813-819
Litsea elliptica Blume leaves have been traditionally used as medicinal herbs because of its antimutagenicity, che-mopreventative and insecticidal properties. In this study, the toxic effects of L. elliptica essential oil against Sprague-Dawley rat's red blood cells (RBCs) were evaluated. L. elliptica essential oil was given by oral gavage 5 times per week for 3 treated groups in the doses of 125, 250, and 500 mg/(kg body weight), respectively, and the control group received distilled water. Full blood count, RBC osmotic fragility, RBC morphological changes, and RBC membrane lipid were analyzed 28 d after the treatment. Although L. elliptica essential oil administration had significantly different effects on hemoglobin (Hb), mean cell hemoglobin concentration (MCHC), mean cell volume (MCV), and mean cell hemoglobin (MCH) in the experimental groups as compared to the control group (P<0.05), the values were still within the normal range. L. elliptica induced morphological changes of RBC into the form of echinoeyte. The percentage of echinocyte increased significantly among the treated groups in a dose-response manner (P<0.001). The concentrations of RBC membrane phospholipids and cholesterol of all treated groups were significantly lower than those of control group (P<0.001). However, the RBC membrane osmotic fragility and total proteins of RBC membrane findings did not differ significantly between control and treated groups (P>0.05). It is concluded that structural changes in the RBC membrane due to L. elliptica essential oil administration did not cause severe membrane damage. 相似文献
6.
天然植物色素可以作为研制染料敏化太阳能电池的一种颜料(光敏剂)。西藏核桃果皮富含丰富色素,本文利用萃取、色谱分离技术提取了西藏林芝核桃果皮色素。用蒸馏水从500g干核桃果皮中提取获得了21.03g色素,产率达4.21%。用四氯化碳从500g鲜核桃果皮中提取获得了0.35g色素。利用紫外可见光度计对以上两种萃取流程获得的色素进行了吸光度测定。结果显示核桃果皮色素对波长越短的光吸收能力越强。紫外区有最大的吸光度,然后随着波长的增大,吸光度逐渐变小。为今后研制色素增感型太阳能电池提供了萃取色素颜料技术。 相似文献
7.
Amin L Ahmad J Jahi JM Nor AR Osman M Mahadi NM 《Public understanding of science (Bristol, England)》2011,20(5):674-689
Despite considerable research in advanced countries on public perceptions of and attitudes to modern biotechnology, limited effort has been geared towards developing a structural model of public attitudes to modern biotechnology. The purpose of this paper is to identify the relevant factors influencing public attitudes towards genetically modified (GM) soybean, and to analyze the relationship between all the attitudinal factors. A survey was carried out on 1,017 respondents from various stakeholder groups in the Klang Valley region. Results of the survey have confirmed that attitudes towards complex issues such as biotechnology should be seen as a multifaceted process. The most important factors predicting support for GM soybean are the specific application-linked perceptions about the benefits, acceptance of risk and moral concern while risk and familiarity are significant predictors of benefit and risk acceptance. Attitudes towards GM soybean are also predicted by several general classes of attitude. 相似文献
8.
Zalizan M. Jelas Norzaini Azman Hutkemri Zulnaidi Nor Aniza Ahmad 《Learning Environments Research》2016,19(2):221-240
The aim of this study was to examine the associations between learning support, student engagement and academic achievement among adolescents. We also examined the extent to which affective, behavioural and cognitive engagement play a mediating role in students’ perceived learning support from parents, teachers and peers, and contribute to their academic achievement. Malaysian adolescents (aged 12–17 years, N = 2359) completed a self-administered questionnaire based on an adapted version of the Student Engagement And Learning Support Scale. Item and factor analyses were performed to ensure appropriate psychometric properties of the scales. Pearson correlation analysis identified the relationship between variables and structural equation modelling was conducted to identify the role of student engagement as a mediator between learning support and academic achievement. The study provides empirical support for the hypothesis that perceptions of learning support influence adolescents’ affective, behavioural and cognitive engagement in school in different ways, which in turn influences their academic achievement. Cognitive engagement seemed to be the best predictor of academic achievement and the strongest mediator for all three types of learning support. Behavioural engagement was negatively associated with academic achievement, and affective engagement did not have a direct relationship with academic achievement, although it contributed indirectly through cognitive and behavioural engagement. The results of this study provide a basis for policy makers to initiate prevention and intervention programs for increasing the quality of parent–child, teacher–student and peer–peer relationships which ultimately could lead to improved academic competence and outcomes. 相似文献
9.
Emey Suhana Mohd Azamai Suhaniza Sulaiman Shafina Hanim Mohd Habib Mee Lee Looi Srijit Das Nor Aini Abdul Hamid Wan Zurinah Wan Ngah Yasmin Anum Mohd Yusof 《Journal of Zhejiang University. Science. B》2009,10(1):14-21
Chlorella vulgaris (CV) has been reported to have antioxidant and anticancer properties. We evaluated the effect of CV on apoptotic regulator
protein expression in liver cancer-induced rats. Male Wistar rats (200∼250 g) were divided into eight groups: control group
(normal diet), CDE group (choline deficient diet supplemented with ethionine in drinking water to induce hepatocarcinogenesis),
CV groups with three different doses of CV (50, 150, and 300 mg/kg body weight), and CDE groups treated with different doses
of CV (50, 150, and 300 mg/kg body weight). Rats were sacrificed at various weeks and liver tissues were embedded in paraffin
blocks for immunohistochemistry studies. CV, at increasing doses, decreased the expression of anti-apoptotic protein, Bcl-2,
but increased the expression of pro-apoptotic protein, caspase 8, in CDE rats, which was correlated with decreased hepatoctyes
proliferation and increased apoptosis as determined by bromodeoxy-uridine (BrdU) labeling and terminal deoxynucleotidyl transferase
mediated dUTP nick-end labeling (TUNEL) assay, respectively. Our study shows that CV has definite chemopreventive effect by
inducing apoptosis via decreasing the expression of Bcl-2 and increasing the expression of caspase 8 in hepatocarcinogenesis-induced
rats.
Project supported by Department of Biochemistry, Faculty of Medicine, UKM Medical Center, Universiti Kebangsaan Malaysia,
and the Malaysian Ministry of Science and Technological Innovation (MOSTI) 相似文献
10.
M. Aminur Rahman Tsuyoshi Uehara Aziz Arshad Fatimah Md. Yusoff Mariana Nor Shamsudin 《Journal of Zhejiang University. Science. B》2012,13(10):797-810
Two reef margin species of tropical sea urchins, Echinometra sp. C (Ec) and Echinometra oblonga (Eo), occur sympatrically on Okinawa intertidal reefs in southern Japan. Hybridization between these species was examined through a series of cross-fertilization experiments. At limited sperm concentrations, where conspecific crosses reached near 100% fertilization, both heterospecific crosses showed high fertilization rates (81%–85%). The compatibility of the gametes demonstrated that if gamete recognition molecules are involved in fertilization of these species, they are not strongly species-specific. We found that conspecific crosses reached peak fertilization levels much faster than did heterospecific crosses, indicating the presence of a prezygotic barrier to hybridization in the gametes. Larval survival, metamorphosis, and juvenile and adult survival of hybrid groups were nearly identical to those of their parent species. Hybrids from crosses in both directions developed normally through larval stages to sexually mature adults, indicating that neither gametic incompatibility nor hybrid inviability appeared to maintain reproductive isolation between these species. In adults, Ec×Ec crosses gave the highest live weight, followed by Eo (ova)×Ec (sperm), Ec (ova)×Eo (sperm), and Eo×Eo. Other growth performance measures (viz., test size, Aristotle’s lantern length, and gonad index) of hybrid groups and their parental siblings showed the same trends. The phenotypic color patterns of the hybrids were closer to the maternal coloration, whereas spine length, tube-foot and gonad spicule characteristics, pedicellaria valve length, and gamete sizes showed intermediate features. Adult F1 hybrids were completely fertile and displayed high fertilization success in F1 backcrosses, eliminating the likelihood that hybrid sterility is a postzygotic mechanism of reproductive isolation. Conversely, intensive surveys failed to find hybrid individuals in the field, suggesting the lack or rarity of natural hybridization. This strongly suggests that reproductive isolation is achieved by prezygotic isolating mechanism(s). Of these mechanisms, habitat segregation, gamete competition, differences in spawning times, gametic incompatibility or other genetic and non-genetic factors appear to be important in maintaining the integrity of these species. 相似文献