47 research outputs found

    Poly(Lactic Acid)(PLA)-reinforced kenaf bast fiber composites : the effect of triacetin.

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    In this article, the mechanical, morphological, and dynamic-mechanical properties of the blends of PLA and kenaf bast short fiber were investigated. The composites, with different fiber loading and triacetin content, were prepared by melt blending techniques using a Brabender internal mixer at 60 rpm and 170�C for 10 min and their properties were examined. Pure PLA was used as a reference for the biocomposite samples. Triacetin was used as a plasticizer for PLA and PLA/kenaf composites in order to study the improvement in tensile properties. The tensile strength and stiffness of unplasticized biocomposite materials decreased with the addition of kenaf bast fibers but improved with the addition of triacetin. The optimum fiber loading was 30wt% kenaf fibers in the PLA matrix with the addition of 5% triacetin. The dynamic mechanical analyses showed that triacetin improved the thermal stability of the biocomposites. The triacetin increased the storage modulus and gave a lower softening temperature for plasticized biocomposites. The micrographs of the tensile specimens and their fractured surfaces, which were examined by scanning electron microscopy, demonstrated that better adhesion between the fibers and the matrix was achieved with the addition of the plasticizer

    Gender Differences in Attitude Towards Pornography Among Youth in Kelantan

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    Although the number of pornography exposure is increasing, our understandings on the issues are still lacking. This study aimed to compare gender differences in the attitudes towards pornography among youth in Kelantan. A cross sectional study was conducted using a validated self-administered questionnaire (PORQUE) on 930 college students in both government and private colleges in Kelantan. The mean scores were significantly higher among females for majority of the items assessing non-permissive feelings toward pornography materials (p<0.001), perception on impact of pornography (p<0.05) and perception on factors contributed to pornography (p<0.05). The mean score for majority of the items assessing permissive and perceptions toward pornography materials were significantly higher among males(p<0.001). Females were more non-permissive towards pornography, better perceived the impact of pornography and factors contributed to pornography compared to males. These findings are important as it serve as a guide for the stakeholders to implement pornography intervention for youth in Malaysia

    The translation and adaptation of the parent proxy kid-kiddoKINDLR questionnaire on quality of life (QoS) for primary school-aged children with hearing impairment

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    The objectives of this paper are to translate and adapt the parent proxy Kid-KiddoKINDLRR questionnaire on Quality of Life (QoL) for children with hearing impairment into Malay language and to describe the translation techniques used, as well as the equivalence issues, with regards to morphology and semantics, encountered during the process. A combined technique of forward-backward translation was used following the translation protocol provided by KINDL developer. The techniques involved in the translation process were the forward translations by three translators, reconciliation between the translations. Next, this questionnaire was backward translated, and harmonised. As the types of equivalence were determined, several related issues were identified; vocabulary equivalence, idiomatic equivalence and grammatical-syntactical equivalence. However, it can be reported that there were no issues in experiential and conceptual equivalence during the process. The translation of this questionnaire is essential in order to shed light on the children’s QoL in the Malay speaking community

    Specific microRNAs among milk siblings: an epigenetics approach towards understanding the basis of milk kinship

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    Milk kinship is an Islamic belief described as a relationship established when infants receive breast milk from non-biological mothers. This form of kinship is said to bear a very close resemblance to blood relation whereby the recipients’ infants are regarded as milk siblings to the biological children of the breastfeeding mother. Any future marriage between these individuals is forbidden likewise between the recipient infant and the nursing mother herself as they are thought to have a form of consanguinity. The consanguinity formed by virtue of milk sharing might be due to the composition of human breast milk, especially milk microRNAs that are responsible for the epigenetic modulation of gene expression. miRNAs can regulate gene expression by modulating genome-wide epigenetic status of genes, and similarly-shared genes might be the basis that has led to milk kinship formation. Thus, the objective of the present study is to identify potential lactationspecific miRNAs that are similarly shared among milk siblings and their nursing mothers. The study began with molecular extraction of milk RNA from the nursing mothers and cell-free plasma RNA from all milk siblings and their nursing mothers. The RNAs extracted from both sample types were further analyzed using NanoString nCounter® miRNA Panel Analysis (NanoString Technologies, Seattle, WA) to measure the abundance of individual miRNAs biomarkers present within the samples. This study is expected to provide scientific explanation that could divulge the secrets behind milk kinship establishment with thorough presentation on the lactation-specific miRNAs shared between milk siblings. Hence, the way for future research would be paved, making the development of milk kinship identification tool possible

    Specific MicroRNAs among milk siblings: an epigenetics approach towards understanding the basis of milk kinship

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    Introduction: Milk kinship is an Islamic belief described as a relationship established when infants receive breast milk from non-biological mothers. This form of kinship is said to bear a very close resemblance to blood relation whereby the recipients’ infants are regarded as milk siblings to the biological children of the breastfeeding mother. Any future marriage between these individuals is forbidden likewise between the recipient infant and the nursing mother herself as they are thought to have a form of consanguinity. The consanguinity formed by virtue of milk sharing might be due to the composition of human breast milk, especially milk microRNAs that are responsible for the epigenetic modulation of gene expression. miRNAs can regulate gene expression by modulating genome-wide epigenetic status of genes, and similarly-shared genes might be the basis that has led to milk kinship formation. Thus, the objective of the present study is to identify potential lactation-specific miRNAs that are similarly shared among milk siblings and their nursing mothers. Methods: The study began with molecular extraction of milk RNA from the nursing mothers and cell-free plasma RNA from all milk siblings and their nursing mothers. The RNAs extracted from both sample types were further analyzed using NanoString nCounter® miRNA Panel Analysis (NanoString Technologies, Seattle, WA) to measure the abundance of individual miRNAs biomarkers present within the samples. Expected Outcomes: This study is expected to provide scientific explanation that could divulge the secrets behind milk kinship establishment with thorough presentation on the lactation-specific miRNAs shared between milk siblings. Hence, the way for future research would be paved, making the development of milk kinship identification tool possible

    Mapping breast cancer research in Malaysia: a scientometric analysis

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    The purpose of this study was to provide an overview of breast cancer researches in Malaysia. Besides, this study aimed to identify the trends of breast cancer research in Malaysia. This study retrieved 343 related publications from the Scopus database. After removing one duplicated publication and another two publications that did not meet the study criteria, the remaining 340 publications were analysed using a bibliometric analysis and trending keywords analysis. This study found that the annual growth rate of publications was 7.4%. The majority of the publications were research articles and multi-author. The most productive author was Yip CH with 69 publications, and the University of Malaya was the top institution in Malaysia related to this research area. For the last five years, there were no dominant themes in this research area. However, this study found two emerging clusters of breast cancer research in Malaysia, which related to medical data analytics and precision medicine in genomic breast cancer. Overall, breast cancer research in Malaysia is progressing towards a positive side, though a few improvements are needed. As the funding in this research area is scarce, proper allocation of the resources is needed

    Understanding Dieting and Previous Weight Loss Attempts among Overweight and Obese Participants: Insights into My Body Is Fit and Fabulous at Work Program

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    Background A qualitative study providing an in-depth exploration of people's view and the increasing burden of overweight and obesity is required. This study aimed to explore the understanding of dieting and previous experiences on weight loss attempts among overweight and obese government employees in Kelantan, Malaysia, prior to recruitment into the intervention program. Methods Thirteen focus group discussions involving 129 participants from a weight-loss intervention program were conducted within the first 1 month of recruitment. These discussions were moderated by two trained researchers in the Malay language and assisted by an interview guide. They were audio-recorded and transcribed verbatim. A thematic analysis was performed, and codes and themes from each discussion were constructed. Results The participants understood dieting with various meanings, including skipping meals and removing rice from daily diets. They applied numerous methods to lose weight and achieved various outcomes. Health and appearance, social support, and compliance with current trends were the factors motivating these participants to lose weight. Their determination to lose weight was limited by lack of self-control and motivation, experiences of unpleasant effects, influence on weight, and environmental and health factors. Conclusion Real-life weight loss experiences and perceptions provided relevant insights into current weight loss management strategies. Some of these issues and misunderstandings should be emphasized in weight loss strategies during health promotion

    H2-Rich and Tar-Free downstream gasification reaction of EFB by using the Malaysian dolomite as a secondary catalyst

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    In this study, Malaysian dolomites as secondary catalysts are placed at the downstream of the fluidized-bed gasifier. Three types of Malaysian dolomites with different elemental ratios of CaO-MgO content denoted as P1, P2, and P3 are investigated with EFB gasification reaction at different cracking temperatures (700–900 °C). The performance of the catalysts with a variation of catalyst to biomass weight ratio (C/B) (0.05 to 0.30 w/w) is evaluated. The findings showed that the total gas yield increased by 20%, hydrogen increased by 66%, along with an almost 99% reduction in tar content with P1 catalyst with the following reaction conditions: gasification temperature of 850 °C, equivalence ratio (ER) of 0.25, and cracking temperature of 900 °C. Malaysia dolomite could be a secondary catalyst to provide a better alternative, tar-free hydrogen-rich gas with the possibility of regeneration and re-use

    Developing constructs of anatomy education environment measurement: A Delphi study

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    Inadequate anatomical knowledge due to unsatisfactory anatomy education environment has contributed to poor clinical performance among medical graduates. Unfortunately, no specific environment measurement tool is available. Delphi technique was conducted to identify the anatomy education environment components and their items. It involved identification of possible components and their definitions by nine anatomists which were then appraised and verified, getting critical appraisal from five medical educationists, determining suitable items for each component and finally appraised by content experts. Eleven components with 129 items that might represent the anatomy education environment were proposed. Further validation is required to determine its psychometric properties

    Leptospirosis and its prevention: knowledge, attitude and practice of urban community in Selangor, Malaysia

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    Background: Leptospirosis is still endemic in Malaysia and has been prevalent in Selangor where cases have been underreported. Primarily, this was due to lack of awareness in the urban community in this region. This study determined the knowledge, attitude and preventive practice (KAP) of leptospirosis, and identified the significant predictors influencing KAP among urban community in Hulu Langat, Selangor. Methods: This cross-sectional study was conducted from 2015 to 2017 using validated questionnaire. Sampling methods included multistage cluster sampling, followed by simple random sampling to obtain 315 respondents. Descriptive analysis was performed to determine the KAP while χ 2 and the subsequent logistic regression analysis were carried out to identify associations and predictors between variables. Results: Respondents were mainly Malaysian Bumiputra with a mean (Standard Deviation (SD)) age of 32.5 (13.0) years. Of 315 respondents, 80.3% (n = 253) had poor knowledge, 87.0% (n = 274) had good attitude, and 81.3% (n =256) showed unacceptable practice towards leptospirosis and its prevention. Regression analysis identified age as the sole predictor influencing good knowledge (AOR 2.388; 95% CI = 1.298, 4.396; p = 0.005). Education level (AOR 2. 197; 95% CI = 1.109, 4.352; p = 0.024) was also noted as the significant predictor influencing the overall practice. Conclusions: The urban community in Selangor showed a positive attitude in waste management despite having little knowledge regarding the disease itself. The study also discovered inadequacy in preventive practice, hence marking the importance of the proper integration of knowledge and attitude into forming an acceptable practice to reduce transmission of Leptospira among urban population in Malaysia
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