74 research outputs found
Pendekatan pembelajaran kolaboratif: menghubungkan Matematik Perniagaan dengan aplikasi dunia sebenar melalui perkongsian industri / Siti Nurleena Abu Mansor, Azlina Mohd Mydin and Mahanim Omar
No full textPendidikan moden menekankan pendekatan pengajaran yang lebih kolaboratif, di mana akademia dan industri bekerjasama untuk memperkayakan pengalaman pembelajaran pelajar. Kajian ini bertujuan untuk menganalisis pemahaman dan persepsi pelajar terhadap Matematik Perniagaan serta mengenal pasti cabaran dalam penggunaannya dalam kehidupan sebenar. Dengan mengambil kira kepentingan pembelajaran kolaboratif, pembelajaran melalui perkongsian industri berpotensi membantu pelajar menghubungkan konsep teori dengan aplikasi dunia sebenar. Dapatan kajian menunjukkan bahawa majoriti pelajar memahami konsep asas Matematik Perniagaan, namun masih menghadapi kesukaran dalam mengaplikasikannya secara praktikal. Antara cabaran utama adalah kesukaran menghubungkan teori dengan amalan dan kekurangan pendedahan kepada situasi industri sebenar. Oleh itu, kaedah pengajaran yang melibatkan perkongsian daripada industri boleh menjadi pendekatan yang berkesan untuk meningkatkan kefahaman dan kemahiran pelajar dalam bidang ini
Production of cyclodextrin glucanotransferase by Bacillus circulans P28 using sago starch as substrate
Get PDFThe present study was undertaken to address the needs to search for novel cyclodextrin
glucanotransferase (CGTase) with improved properties due to the vast diversity of
cyclodextrin (CDs) applications. Lack of information pertaining to the limitation in
CGTase production using sago starch, an abundant raw material available in Malaysia
as substrate, has also led to this research direction. In this study, fermentation of
CGTase by a locally isolated bacterium, Bacillus circulans P28, was first performed in
shake flasks to optimize medium formulation and culture conditions. The fermentation
process was then transferred to 2 L stirred tank bioreactor, where the requirement for
aeration and agitation were studied in batch fermentation mode. Subsequently, fedbatch
cultures were conducted to overcome the problem related to the effect of
catabolite repression for enhancement of CGTase production.
CGTase from B. circulans P28 was purified to homogeneity up to 20 fold by 40-60%
ammonium sulphate precipitation and anion exchange DEAE-Cellulose with 23%
recovery. The enzyme was a monomer with an estimated molecular weight of 33 kDa on the SDS-PAGE using 12% acrylamide gel electrophoresis. The enzyme was stable
and active at a broad pH range (6 to 10) and was optimally active at 65°C, indicating
that this enzyme may have potential for industrial application in CD production.
Thermal stability was improved in the present of 2 mM CaCl2 and was stable up to
60°C for 1 h. Sago starch was the most preferred substrate for CD production by
CGTase from B. circulans P28 as compared to other starches tested in this study
(potato, soluble and tapioca starch). In the enzymatic reaction, mainly β-CD (78%) and
γ-CD (22%) were produced, suggesting a simpler and easier CDs separation processes
required in the downstream processing.
The optimal conditions for CGTase fermentation by B. circulans P28 in shake flask
were at 30°C and in the presence of 1% (w/v) Na2CO3 (which associated with an initial
culture pH of 10.2). Optimization of the culture medium using full factorial design
(FFD) approach has revealed that sago starch, yeast extract and interaction of sago
starch and yeast extract significantly affected CGTase production by B. circulans P28.
In fermentation using the optimized medium composition (3 g/L sago starch and 17.83
g/L yeast extract) which corresponded to C/N ratio of 0.8, the maximum CGTase
activity obtained was 6.96 U/mL, which was about 45% higher than that obtained in
non-optimized medium (4.6 U/mL).
Production of CGTase by B. circulans P28 in 2 L stirred tank bioreactor increased
propotionally with the increase in agitation speed, ranging from 400 to 900 rpm though
growth was slightly inhibited at agitation speed of above 600 rpm. The shear forces
created by the impeller at high agitation speed had caused cell distruption and affected
the cell viability, thus, resulted in an increase in CGTase activity. The highest CGTase
activity (9.6 U/ml) in batch fermentation using stirred tank bioreactor was obtained at;
agitation speed of 600 rpm; air-flow rate of 0.5 vvm; initial culture pH of 10.8 without pH control during the fermentation and temperature of 30°C. This gave an improvement
of 44% as compared to that obtained in optimum fermentation using shake flask.
Further improvement in CGTase production by B. circulans P28 was achieved through
the implementation of fed-batch fermentation. The highest overall enzyme yield (7400
U/g) and productivity (1500 U/L/h) was obtained in fed-batch fermentation fed with
low concentration of starch (3 g/L) in the feed at a constant feeding rate of 0.36 g/L/h.
This gave an improvement in term of maximum CGTase activity and productivity, by
104% and 49%, respectively, as compared to conventional batch fermentation. This
study indicated that fed-batch fermentation is a good alternative for CGTase production
by overcoming the catabolic repression effect. Many different approaches used in this
study to overcome the limitations of CGTase production may find vast applications in
obtaining high enzyme productivities using other CGTase-producing microorganisms
and perhaps also for other starch-converting enzymes
Survey on the ability of secondary school students in using scientific calculator / Siti Nurleena Abu Mansor, Siti Mariam Saad and Mohd Syafiq Abdul Rahman
Get PDFScientific calculator, as one of the education technologies known to many students across countries, is said to give assistances in solving mathematical computation. As a user, the student should have known most of the instructions and functions in the scientific calculator for them to be able to benefit from the device. Data was collected from 56 secondary school students in Pulau Pinang who involved in mathematical seminar. In the seminar, some functions in scientific calculator related to their mathematics syllabus is integrated in solving mathematics questions. 30.4 percent of the students admitted that they did not have proficiency in using scientific calculator and 23 percent of them did not get direct teaching on most calculator functions from their teacher. The students agreed that by using the calculator it helped them in solving the computation quicker and they were more confident in their answer. There was 71.4 percent of students assured that they had improved their ability in using scientific calculator. This study suggests similar calculator seminar being trained to students occasionally as an initiative to support and maximise the use of scientific calculator in mathematics educatio
Exploring Consumers’ Subconscious Response On Marketing Mix Towards Green And Non-green Products:A Neuromarketing Approach
Get PDFMarketing is the core of a business and the primary goal of marketing is to
bring the products to the target market. Traditional products characteristics such as
Product, Price, Promotion and Place are the most important attributes when
consumers consider when making a purchase decision. However, one of the main
reasons of some marketing strategy fail is because the inability to understand the
decision making process that takes place in consumers’ subconscious minds. Thus,
marketers waste most of their budget by attracting only 10% of the brain that drives
consumers’ decisions. For that reason, a suitable method is therefore essential for
marketers to understand the underlying responses when consumers make decision.
Due to the issue, in the last few decades, significant advancement of neuroscience
has resulted in the emergence of neuromarketing, which provides a better
understanding of how subconscious minds reacts in everyday situations, especially in
marketing activities. This new concept brings powerful insights and techniques into
marketing research especially on consumers’ behaviour analysis. In this view, this
study looks at the growing field of neuromarketing and aims to explore consumers’
subconscious minds by examining the effectiveness of marketing mix on consumers’
decision making process. This study employed Electroencephalograms (EEG) and
Eye Trackers to examine consumers’ subconscious minds towards the main
component of the marketing mix during the decision making process. A laboratory
experiment employed thirty-one volunteers to take part in the study
Pre-commerce students perception towards online mathematic courses / Azlina Mohd Mydin ... [et al.]
No full textOnline classes are the new trends in all our education system due to Pandamic COVID-19. To ensure that our education system does not lag behind, the ministry proposes to continue studies or schooling online. The student from pre university programme also are required to join the online classes although they are new to higher education center or university system. Pre-Commerce is one programme in PPT, UiTM that offers courses for those who did not preform well in SPM. Most of the student who joined these programme do not get good results in subjects like Mathematic and English. This research will study about the student perception towards online learning for mathematic course. An online survey has been conducted to study the student perspective and adaption for online classes especially for mathematic subject. The sample of this study are taken from Pre - Commerce student especially from UiTM Cawangan Pulau Pinang. In this study, we also elaborate the teaching methods used by the lecturer for teaching the mathematic course
InCeS : pembelajaran berasaskan permainan / Azlina Mohd Mydin ... [et al.]
No full textSenaman adalah aktiviti yang memberi manfaat bukan sahaja kepada kesihatan fizikal, malah kesihatan mental juga. Pelbagai jenis senaman boleh diamalkan seperti berlari, berjalan, mendaki gunung, berbasikal, areobik, dan sebagainya. Namun, dalam kesibukan harian dan kesuntukan masa, aktiviti seperti ini tidak dapat dilakukan. Ini akan menjurus kepada gangguan kesihatan dan juga tekanan yang pastinya menjejaskan kualiti kesihatan diri. Oleh itu, Infiniti Cergas Sihat (InCeS) merupakan satu inovasi permainan di mana aktiviti senaman ringan digabungkan dan disusun seperti permainan papan (board games). InCeS direka sebagai satu permainan unik yang melibatkan aktiviti gerakan senaman ringan dalam suasana yang menarik dan menyeronokkan. Permainan InCeS ini bukan sahaja melibatkan pergerakan fizikal, malah permainan ini turut menerapkan kemahiran jual beli, sewa, gadaian petak dan penetuan keputusan. InCeS juga boleh digunakan sebagai salah satu alat manipulatif pembelajaran bagi pelajar pendidikan khas di sekolah
Application of rasch measurement model in determining weight of readiness items for client's organization in Malaysian software outsourcing
No full textExploring the Nexus of Work-Life Balance Sub-Factors and Job Satisfaction: A Study on Executives in the Commercial Banking Sector
Get PDFThis research paper aims to investigate the relationship between work-life balance and job satisfaction among executives in the commercial banking sector. The study considers three sub-factors of work-life balance, namely flexible work arrangements, organizational culture, and motivation, to analyze their impact on employee job satisfaction. Questionnaires were distributed to executives in a commercial bank located in Johor Bahru, resulting in 213 responses. The collected data confirmed the relationship between the examined constructs and provided support for the hypothesized relationships of work-life balance sub-factors with job satisfaction. The study emphasizes the importance of analyzing and enhancing work-life balance through flexible working arrangements, motivation, and organizational culture to promote job satisfaction and maximize human capital resources within organizations. The outcomes of this study can serve as a benchmark for management seeking to improve job satisfaction levels among employees. Notably, while previous research has explored work-life balance, limited attention has been given to its subtopics and their impact on job satisfaction within commercial banks. This study addresses these gaps in understanding and provides valuable insights into work-life balance and job satisfaction in the banking sector
Emotional intelligence, sociodemographic, and investment decision: the moderating effect of financial literacy
Get PDFThis study aims to determine the effect of emotional intelligence,
sociodemographic factors on investment decisions, and financial literacy as moderating variables of emotional intelligence and sociodemographic factors on investment decisions. The research population is investor saham pemula (ISP) community, a sample of 106 investors. The analysis technique used in this research uses the help of the Smart PLS 3.0 data processing application. the results of the study indicate that Emotional Intelligence has a positive and significant effect on investment decisions; Sociodemography has no effect on investment decisions; Emotional intelligence is positive and significant to investment decisions moderated by financial literacy; positive and significant sociodemography on investment decisions moderated by financial literac
Understanding Customer Satisfaction: A Study of Convenience Stores
Get PDFThis study explores the impact of customer satisfaction on purchasing behavior within convenience stores, focusing on four key determinants: service quality, perceived value, product quality, and trust, perceived value, and trust. The growing population and increasing consumer demand have prompted companies to enhance productivity and service standards across their convenience store branches. To maintain competitiveness and attract a diverse customer base—comprising existing, new, and potential customers—businesses need to review and refine their operational strategies continuously. The study’s methodology involved a structured approach to gathering quantitative data from a specific sample of convenience store customers in Bentong City. By using surveys and questionnaires, the research aimed to capture relevant information directly from the consumers, providing insights into their experiences and satisfaction with the convenience stores. The non-probability convenience sampling method facilitated the collection of data from readily available participants, ensuring a practical and timely data collection process. Using a data set collected from 220 respondents who utilized products and services at a convenience store, this research aims to empirically investigate the relationships between service quality, perceived value, product quality, and trust, perceived value, trust, and overall customer satisfaction. The findings indicate that while all four factors contribute to customer satisfaction, service quality, perceived value, and trust exert a significantly stronger influence compared to product quality. These insights underscore the importance of prioritizing service enhancement, value creation, and trust-building initiatives in the strategic management of convenience stores, thereby ensuring sustained customer satisfaction and loyalty
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