16 research outputs found

    Electronic transaction of internet banking and its perception of Malaysian online customers

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    The purpose of this research is to find out significant factors of consumers’ perception on e-banking transaction by Malaysian bank consumers. The study utilizes a combination of theoretical frameworks and quantitative techniques o testify the statistical relationships between consumer perceptions on e-banking transaction. Meanwhile factor analysis was performed to extraction and make initial decision on the number of factors underlying asset of measured variables of interest. Thereafter structural equation mode (SEM) was estimated to anticipate the effects of the explanatory variables. This study shows that only protected transaction, have significant impact on consumers’ perception about e-banking security, followed by service quality and regulatory frame work issues. This study is the first that seeks to ascertain the insight into e-banking in Malaysia, which has not been previously been investigated and much statistical significance makes this study a potential cornerstone for future research. Therefore, this study thus sets an important benchmark for further research in the area

    High resolution 0.5mm isotropic T1-weighted and diffusion tensor templates of the brain of non-demented older adults in a common space for the MIITRA atlas

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    High quality, high resolution T1-weighted (T1w) and diffusion tensor imaging (DTI) brain templates located in a common space can enhance the sensitivity and precision of template-based neuroimaging studies. However, such multimodal templates have not been constructed for the older adult brain. The purpose of this work which is part of the MIITRA atlas project was twofold: (A) to develop 0.5 mm isotropic resolution T1w and DTI templates that are representative of the brain of non-demented older adults and are located in the same space, using advanced multimodal template construction techniques and principles of super resolution on data from a large, diverse, community cohort of 400 non-demented older adults, and (B) to systematically compare the new templates to other standardized templates. It was demonstrated that the new MIITRA-0.5mm T1w and DTI templates are well-matched in space, exhibit good definition of brain structures, including fine structures, exhibit higher image sharpness than other standardized templates, and are free of artifacts. The MIITRA-0.5mm T1w and DTI templates allowed higher intra-modality inter-subject spatial normalization precision as well as higher inter-modality intra-subject spatial matching of older adult T1w and DTI data compared to other available templates. Consequently, MIITRA-0.5mm templates allowed detection of smaller inter-group differences for older adult data compared to other templates. The MIITRA-0.5mm templates were also shown to be most representative of the brain of non-demented older adults compared to other templates with submillimeter resolution. The new templates constructed in this work constitute two of the final products of the MIITRA atlas project and are anticipated to have important implications for the sensitivity and precision of studies on older adults

    Synthesis, characterization and cytotoxicity studies of 1,2,3-triazoles and 1,2,4-triazolo 1,5-a pyrimidines in human breast cancer cells

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    Vascular endothelial growth factor (VEGF) and its receptor (VEGFR) is essential for physiological functions of tissues and neovasculature. VEGFR signaling is associated with the progression of pathological angiogenesis in various types of malignancies, making it an attractive therapeutic target in cancer treatment. In the present work, we report the synthesis of 1,4-disubstituted 1,2,3-triazoles and 1,2,4-triazolo[1, 5-a]pyrimidine derivatives via copper (I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction and screened for their anticancer activity against MCF7 cells. We identified 1-(2′-ethoxy-4′-fluoro-[1,1′-biphenyl]-4-yl)-4-phenyl-1H-1,2,3-triazole (EFT) as lead cytotoxic agent against MCF7 cell lines with an IC50 value of 1.69 µM. Further evaluation revealed that EFT induces cytotoxicity on Ishikawa, MDA-MB-231 and BT474 cells with IC50 values of 1.97, 4.81 and 4.08 µM respectively. However, EFT did not induce cytotoxicity in normal lung epithelial (BEAS-2B) cells. Previous reports suggested that 1,2,3-triazoles are the inhibitors of VEGFR1 and therefore, we evaluated the effect of EFT on the expression of VEGFR1. The results demonstrated that EFT downregulates the expression of VEGFR1 in MCF7 cells. In summary, we identified a potent cytotoxic agent that imparts its antiproliferative activity by targeting VEGFR1 in breast cancer cells. The novel compound could serve as a lead structure in developing VEGFR1 inhibitors

    Effects of ondansetron alone and in combination with domperidone in the prevention of chemotherapy-induced nausea and vomiting in breast cancer patients

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    The efficacy and safety of ondansetron, administered alone and in combination with domperidone to prevent chemotherapy-induced nausea and vomiting of breast cancer patients receiving chemotherapy FAC regimen (5-fluorouracil, adriamycin and cyclophosphamide) were evaluated. A consecutive open-label interventional study was conducted on a total number of 86 female breast cancer patients who were receiving chemotherapy. Forty two patients received ondansetron (8 mg) intravenously 30 min before chemotherapy which is followed by ondansetron (8 mg) administered orally every 8 hourly for 2 days from the day of start of chemotherapy. Another 44 patients received ondansetron (8 mg) intravenously 30 min before chemotherapy followed by ondansetron (8 mg) plus domperidone (20 mg) administered orally 8 hourly for 48 hours from the day of start of chemotherapy. The number of emetic episodes, severity of nausea, assessment of appetite and adverse events were recorded at 8 hour intervals for two days study period using specific scoring criteria. Ondansetron in combination with domperidone significantly decreased the chemotherapy-induced nausea and vomiting in comparison with ondansetron administered alone (P<0.001). Appetite status was good with combination therapy (P<0.001). Improvement in appetite indicates that ondansetron plus domperidone exert protective effect against nausea and maintain normal appetite, while patients who were getting monotherapy experience loss of appetite. The common adverse event, headache was present in both the groups. No extrapyramidal reaction was observed in any group. This study showed that ondansetron plus domperidone exert more pronounced antiemetic effect in patients with breast cancer receiving moderately emetogenic chemotherapy (FAC regimen) with good appetite status and less adverse effect
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