13 research outputs found
Epistemological Beliefs Of The Educator And The Learners In A Dialogic Teaching And Learning Context In Malaysian Higher Education
Education has always been an integral part in an individual’s life and in a nation’s survival, at large. Being equated to the process of teaching and learning, it is always expected to meet the demands of many parties including the community, the educational institution itself and the country. As for a higher learning milieu, the teaching and learning process is enlightened with various methodologies in lesson delivery. Among all, dialogic teaching and learning is found to be a suitable pedagogical method which offers a great deal of benefits. An educator was identified to practice such a method and it was one of the objectives of this research to uncover the practice in a Malaysian tertiary education context. Besides, the study was also conducted to explore the epistemological beliefs both the educator and her learners hold within the dialogic process. Employing a fully qualitative approach, the research generally implicated an educator and 41 learners of whom were directly involved in the dialogic teaching and learning. In particular, all the 41 learners agreed to be observed and they also shared their views pertaining to the dialogic practice through a series of journal entries. However, only seven of them, together with the educator were interviewed. From the three data gathering procedures, thematic data analysis was used. The results, from the educator’s perspective, generally demonstrated that the dialogue was a practice of belief in which it rejects the idea of transmissionary view of teaching and learning. In other words, the educator was found to conform to Freire’s (1970, 1997) notion which propagates the idea of equality of roles in a teaching and learning process. As for the learners, it could be concluded that the practice of dialogue was still not pervasive enough, despite the similar belief they held in comparison with the educator’s. The learners could be said to theoretically approve the philosophy underlying the dialogic approach yet not to fully practically exercise such beliefs. The findings, thus, suggested a number of pedagogical implications and invited several recommendations for future research as well as practice
A Comparative Review of Caring Thinking and Its Implications on Teaching and Learning
Purpose – This paper undertakes a comparative review of the concept of ‘Caring Thinking’ from the perspectives of specific scholars (with different cultural voices) in the field of Educational Psychology. Specifically, it focuses on the area of Thinking and Cognition.Methodology – The review scrutinised the concept of caring thinking in Matthew Lipman’s (2003) Thinking Model as well as Mohd Daud Hamzah and Abdul Kadir Arifin’s (2001) Islamic Cognitive Processes Model (ICPM). Employing a cross-cultural comparative review, the analysis concentrated on the commonalities shared and the differences between the two schools of thought.The aspects of comparison included cognition principles, caring thinking inventory, thinking direction, human characterisation and role of beings.Findings – This review suggests that the scholars propagate and share comparable nuances on the underlying characteristics of human cognition in order to facilitate the formation of the caring thinking concept. However, the interplay of human inner drive which incorporates values is deliberated in different cultural voices. While Lipman (2003) vastly discusses the caring thinking model based on the western context, Mohd Daud Hamzah and Abdul Kadir Arifin’s (2001) cognition model attempts to highlight human cognitive process from an Islamic perspective.Significance – These findings suggest the need to understand the derivation of human cognition processes, that further explains the ability to sense bad and good values in moral virtue development. Fundamentally, this discussion considers the perspectives of both models regarding the formation of an individuals’ thoughts and behaviours, which reflect the attributes of ‘caring thinking’. It implies that greater effort should be undertaken to explore how caring thinking can be made useful to the field of education
Modeling Mach Zehnder Interferometer (MZI) Modulator On Silicon-On-Insulator (SOI)
This paper discusses the effects of different applied voltages on the performance of Mach Zehnder Interferometer (MZI) modulator on Silicon-On-Insulator (SOI). The analysis was done at a wavelength of 1550 nm. The phase modulator was implemented using the forward biased effect of the p-i-n structure. Meanwhile, the MMI splitter and combiner were utilized in order to develop the MZI structure. The design and simulation for the electrical structure were carried out using Athena and Atlas from Silvaco International. Besides, the OptiBPM and OptiSys from Optiwave Corporation were utilized for the optical structure. The analyzed output parameters include the extinction ratio (ER), the insertion loss and the modulation efficiency. It is observed that the application of lower voltage on the modulator displays the best overall performance
The Influences Of Perceived Parental Care, Perceived Teacher Care And Caring Thinking On Moral Identity Among Adolescents With Disciplinary Problems
This study aimed to examine whether perceived parental care and perceived teacher care influence adolescents’ caring thinking aspects (i.e., affective thinking, appreciative thinking, active thinking, normative thinking & emphatic thinking), which in turn posit as antecedents of MI
YouTube as a Platform for an Online Dialogic ESL Teaching and Learning / Anis Shaari and Berlian Nur Morat
Having the ability to communicate has been such a crucial aim in the teaching and learning of
ESL. Nevertheless, in reaching the target, the ESL context has encountered various issues
concerning individual differences. These include learners’ personalities, motivation as well as
learning styles and strategies. Questions have emerged whether the introverts and the less
motivated ESL learners really learn the language, particularly in terms of the ability to
communicate using English. It is therefore seen that having a dialogic teaching and learning
pedagogical method, which caters to learners’ variety is highly required. Being in a technology-
equipped epoch, YouTube has been discovered to be such a possible tool to aid learners’
dialogic ability. This paper provides an insight on how YouTube could possibly contribute to the
enhancement of the ESL teaching and learning hence produce more learners with
communicative skill. It therefore discusses how YouTube may be utilized albeit the challenges
faced, in the Malaysian ESL teaching and learning context
Metabolite profiling of Christia vespertilionis leaf metabolome via molecular network approach
Christia vespertilionis (L.f.) Bakh. f. is an ornamental plant with unique butterfly-shaped leaves, hence its vernacular name “butterfly wing” or “rerama” in Malay. In Malaysia, the green-leafed variety of this plant has gained popularity in recent years due to testimonial reports by local consumers of its medicinal uses, which include treatment for cancer. Despite these popular uses, there is very limited information on the phytochemistry of the leaf of this plant, presenting a significant gap in the cheminformatics of the plant species. Herein, we report a substantially detailed phytochemical profile of the leaf metabolome of the green-leafed variety of C. vespertilionis, obtained by deploying an untargeted tandem mass spectrometry-based molecular networking approach. The detailed inspection of the molecular network map generated for the leaf metabolome enabled the putative identification of 60 metabolites, comprising 13 phenolic acids, 20 flavonoids, 2 benzyltetrahydroisoquinoline-type alkaloids, 4 hydroxyjasmonic acid derivatives, 2 phenethyl derivatives, 3 monoacylglycerols, 4 fatty acid amides, 2 chlorophyll derivatives, 4 carotenoids, 2 organic acids, 1 nucleoside, and 3 amino acids. Flavonoids are the major class of metabolites that characterize the plant leaves. Employing a mass-targeted isolation approach, two new derivatives of apigenin-6-C-β-glucoside, the major constituents of the plant leaf, were successfully purified and spectroscopically characterized as apigenin-6-C-β-glucoside 4′-O-α-apiofuranoside (28) and apigenin-6-C-β-[(4″,6″-O-dimalonyl)-glucoside] 4′-O-α-apiofuranoside (47). This work provides further information on the chemical space of the plant leaf
Wall Shear Stress Prediction Using Computational Simulation on Patient Specific Artery with Aneurysm
An aneurysm is formed when a blood vessel becomes dilated or distorted. It will cause the vessel to expand to a size greater than its original diameter. In this study, Wall Shear Stress (WSS) of cerebral artery with aneurysm was predicted using Computational Fluid Dynamics (CFD). WSS in the artery is one of the indicators for brain artery disease progression. Based on the results, the maximum value of blood velocity and WSS on patient specific artery with aneurysm are 3.23 m/s and 60.1 Pa, respectively. The location of high WSS is before and after the aneurysm bulge. The WSS is above the normal physiological value where the artery wall is exposed to high stress. Hence, the vessel at this location is anticipated to become weaker and could be further dilated
Wall Shear Stress Prediction Using Computational Simulation on Patient Specific Artery with Aneurysm
An aneurysm is formed when a blood vessel becomes dilated or distorted. It will cause the vessel to expand to a size greater than its original diameter. In this study, Wall Shear Stress (WSS) of cerebral artery with aneurysm was predicted using Computational Fluid Dynamics (CFD). WSS in the artery is one of the indicators for brain artery disease progression. Based on the results, the maximum value of blood velocity and WSS on patient specific artery with aneurysm are 3.23 m/s and 60.1 Pa, respectively. The location of high WSS is before and after the aneurysm bulge. The WSS is above the normal physiological value where the artery wall is exposed to high stress. Hence, the vessel at this location is anticipated to become weaker and could be further dilated
Zebrafish embryotoxicity and teratogenic effects of Christia vespertilionis leaf extract
Christia vespertilionis or butterfly wings is a traditional medicinal plant used to treat, among others, colds and bronchitis. The plant was also reported to be a remedy for cancer, with several products based on the plant becoming commercially available, raising some safety concerns on its consumption. The present study was carried out to assess the toxic and teratogenic effects of the plant on the embryonic development of zebrafish (Danio rerio) as the animal model. Zebrafish embryos were exposed to 50, 100, 200, 400, and 800 μg/mL of the methanolic leaf extract of C. vespertilionis, starting from 5 to 120 hours post-fertilization (hpf). The median lethal concentration (LC50) value of the extract was determined to be 419.84 μg/mL, which is within the safety limit stipulated by the Organisation for Economic Co-operation and Development (OECD) guideline. However, results from the teratogenicity evaluation revealed multiple signs of developmental defects in embryos exposed to 200 μg/ mL and higher concentrations of the extract. The magnitude of the defects was observed to be concentration-dependent. Moreover, no hatching and spontaneous movement of tail coiling were observed at 400 and 800 μg/mL concentrations due to the delayed growth and early mortality, respectively. A significant reduction in heartbeat rate was also reported for the surviving embryos at the 400 μg/ mL test concentration. The present study has provided preliminary results on the potentially toxic and teratogenic effects of the extract at high concentrations
Clitorienolactones and isoflavonoids of Clitorea ternatea rootsalleviate stress-like symptoms in reserpine-induced zebrafish model
Clitorea ternatea has been used in Ayurvedic medicine as a brain stimulant to treat mental illnesses and mental functional disorders. In this study, the metabolite profiles of crude C. ternatea root extract (CTRE), ethyl acetate (EA), and 50% aqueous methanol (50% MeOH) fractions were investigated using ultrahigh-performance liquid chromatography–diode array detector–tandem mass spectrometry (UHPLC–DAD–MS/MS), while their effect on the stress-like behavior of zebrafish, pharmacologically induced with reserpine, was investigated. A total of 32 compounds were putatively identified, among which, a series of norneolignans, clitorienolactones, and various flavonoids (flavone, flavonol, isoflavone, and isoflavanone) was found to comprise the major constituents, particularly in the EA and 50% MeOH fractions. The clitorienolactones, presently unique to the species, were present in both the free and glycosylated forms in the roots. Both the EA and 50% MeOH fractions displayed moderate effects on the stress-induced zebrafish model, significantly decreasing freezing duration and elevating the total distance travelled and average velocity, 72 h post-treatment. The results of the present study provide further evidence that the basis for the use of C. ternatea roots in traditional medicine to alleviate brain-related conditions, such as stress and depression, is attributable to the presence of clitorienolactones and the isoflavonoidal constituents