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Robust HEVC Video Watermarking Scheme Based on Repetition-BCH Syndrome Code
Ali A.Elrowayati,M.F.L. Abdullah,Azizah Abd Manaf,Abd. S. Alfagi 보안공학연구지원센터(IJSEIA) 2016 International Journal of Software Engineering and Vol.10 No.1
High efficiency video coding (HEVC) was recently introduced two years ago as the new standard for video coding. This new codec will be the most widely prevalent standard. Because of the industry needs for authentication and copyright protection methodologies the robustness of this standard is required to be developed. This paper presents the first robust digital watermarking method for the HEVC based on Repetition- BCH syndrome code technique without intra-frame distortion drift. The objective of this article is to implement a new technique that can offer high robustness against noise channel errors and increase the error detection rate in the HEVC video sequences transmitted over noisy communication channels. The proposed technique does not significantly affect the video quality, nor does it escalate the bitrate. The results show that the proposed technique offers greater robustness against noise channel while preserving good quality for extracted watermark. The proposed technique significantly contributes to the performance of the error detection and correction. In addition, this technique can recover the watermark when the watermarked frames dropping rate is less than 20%.
Alabsi, Aied M.,Ali, Rola,Ali, Abdul Manaf,Al-Dubai, Sami Abdo Radman,Harun, Hazlan,Kasim, Noor H. Abu,Alsalahi, Abdulsamad Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.10
Cancer is one of the major health problems worldwide and its current treatments have a number of undesired adverse side effects. Natural compounds may reduce these. Currently, a few plant products are being used to treat cancer. In this study, goniothalamin, a natural occurring styryl-lactone extracted from Goniothalamus macrophyllus, was investigated for cytotoxic properties against cervical cancer (HeLa), breast carcinoma (MCF-7) and colon cancer (HT29) cells as well as normal mouse fibroblast (3T3) using MTT assay. Fluorescence microscopy showed that GTN is able to induce apoptosis in HeLa cells in a time dependent manner. Flow cytometry further revealed HeLa cells treated with GTN to be arrested in the S phase. Phosphatidyl serine properties present during apoptosis enable early detection of the apoptosis in the cells. Using annexin V/PI double staining it could be shown that GTN induces early apoptosis on HeLa cells after 24, 48 and 72 h. It could be concluded that goniothalamin showing a promising cytotoxicity effect against several cancer cell lines including cervical cancer cells (HeLa) with apoptosis as the mode of cell death induced on HeLa cells by Goniothalamin was.
Alabsi, Aied Mohammed,Ali, Rola,Ali, Abdul Manaf,Harun, Hazlan,Al-Dubai, Sami Abdo Radman,Ganasegeran, Kurubaran,Alshagga, Mustafa Ahmed,Salem, Sameer Dirhim,Kasim, Noor Hayaty Binti Abu Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.11
Goniothalamin, a natural compound extracted from Goniothalamus sp. belonging to the Annonacae family, possesses anticancer properties towards several tumor cell lines. This study focused on apoptosis induction by goniothalamin (GTN) in the Hela cervical cancer cell line. Cell growth inhibition was measured by MTT assay and the $IC_{50}$ value of goniothalamin was $3.2{\pm}0.72{\mu}g/ml$. Morphological changes and biochemical processes associated with apoptosis were evident on phase contrast microscopy and fluorescence microscopy. DNA fragmentation, DNA damage, caspase-9 activation and a large increase in the sub-G1 and S cell cycle phases confirmed the occurrence of apoptosis in a time-dependent manner. It could be concluded that goniothalamin show a promising cytotoxicity effect against cervical cancer cells (Hela) and the cell death mode induced by goniothalamin was apoptosis.
Anti-inflammatory diet and inflammatory bowel disease: what clinicians and patients should know?
( Nor Hamizah Shafiee ),( Zahara Abdul Manaf ),( Norfilza M. Mokhtar ),( Raja Affendi Raja Ali ) 대한장연구학회 2021 Intestinal Research Vol.19 No.2
Current treatment for inflammatory bowel disease (IBD) includes the application of anti-inflammatory agents for the induction and remission of IBD. However, prolonged use of anti-inflammatory agents can exert adverse effects on patients. Recently, formulated dietary approach in treating IBD patients is utilized to improve clinical activity scores. An alteration of gastrointestinal microbiota through dietary therapy was found to reduce IBD and is recognized as a promising therapeutic strategy for IBD. One of the recommended formulated diets is an anti-inflammatory diet (AID) that restricts the intake of carbohydrates with modified fatty acids. This diet also contains probiotics and prebiotics that can promote balanced intestinal microbiota composition. However, scientific evidences are limited to support this specific dietary regime in maintaining the remission and prevention relapse of IBD. Therefore, this review aimed to summarize available data from various studies to evaluate the AID diet effectiveness which will be useful for clinicians to manage their IBD patients by application of improved dietary therapy. (Intest Res 2021;19:171-185)
( Nor Hamizah Shafiee ),( Zahara Abdul Manaf ),( Norfilza M. Mokhtar ),( Raja Affendi Raja Ali ) 대한장연구학회 2020 Intestinal Research Vol.18 No.4
Background/Aims: Ulcerative colitis (UC) is a chronic, relapsing and remitting inflammation of the gastrointestinal tract. Little is known about the link between dietary intake, food avoidance, and beliefs among UC patients of different disease severity. Therefore, this study aimed to assess the dietary intake, food avoidance, and beliefs among active and inactive UC patients. Methods: A cross-sectional study was conducted among UC patients from a tertiary medical center in Kuala Lumpur, Malaysia. Demographic, anthropometric, dietary intake, food avoidance and beliefs were assessed. Disease activity of UC patients was evaluated using the Powell Tuck Index. Results: UC patients were recruited (64.1% inactive UC and 35.9% active UC). As compared to inactive UC patients, active UC patients were likely to lose weight (75.0% vs. 0%), possess certain food beliefs (95.7% vs. 39.0%), and frequently practiced dietary avoidance (95.7% vs. 43.9%). The dietary intake among inactive UC patients was higher than active UC patients. However, neither of them met the standard nutrients recommendation for protein, calcium, iron, folate, zinc, vitamin D, vitamin B<sub>12</sub>, and vitamin E. Conclusions: Active UC patients had poorer dietary intake, were more prone to practicing food avoidance and exhibited certain food beliefs as compared to inactive UC patients. Both macro- and micronutrients intakes were inadequate regardless of patient’s disease status. These findings emphasized the importance for patients to be provided with the nutrition-related knowledge as part of strategies to avoid nutritional inadequacies. (Intest Res 2020;18:447-458)
Goodson III, William H.,Lowe, Leroy,Carpenter, David O.,Gilbertson, Michael,Manaf Ali, Abdul,Lopez de Cerain Salsamendi, Adela,Lasfar, Ahmed,Carnero, Amancio,Azqueta, Amaya,Amedei, Amedeo,Charles, Ame Oxford University Press 2015 Carcinogenesis Vol.36 No.suppl1
<P>Lifestyle factors are responsible for a considerable portion of cancer incidence worldwide, but credible estimates from the World Health Organization and the International Agency for Research on Cancer (IARC) suggest that the fraction of cancers attributable to toxic environmental exposures is between 7% and 19%. To explore the hypothesis that low-dose exposures to mixtures of chemicals in the environment may be combining to contribute to environmental carcinogenesis, we reviewed 11 hallmark phenotypes of cancer, multiple priority target sites for disruption in each area and prototypical chemical disruptors for all targets, this included dose-response characterizations, evidence of low-dose effects and cross-hallmark effects for all targets and chemicals. In total, 85 examples of chemicals were reviewed for actions on key pathways/mechanisms related to carcinogenesis. Only 15% (13/85) were found to have evidence of a dose-response threshold, whereas 59% (50/85) exerted low-dose effects. No dose-response information was found for the remaining 26% (22/85). Our analysis suggests that the cumulative effects of individual (non-carcinogenic) chemicals acting on different pathways, and a variety of related systems, organs, tissues and cells could plausibly conspire to produce carcinogenic synergies. Additional basic research on carcinogenesis and research focused on low-dose effects of chemical mixtures needs to be rigorously pursued before the merits of this hypothesis can be further advanced. However, the structure of the World Health Organization International Programme on Chemical Safety ‘Mode of Action’ framework should be revisited as it has inherent weaknesses that are not fully aligned with our current understanding of cancer biology.</P>