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Articles by Al-Amin
Total Records ( 2 ) for Al-Amin
  Al-Amin , Chamhuri Siwar and Abdul Hamid
  Problem Statement: Lacking of proper environmental models environmental pollution is now a solemn problem in many developing countries particularly in Malaysia. Some empirical studies of worldwide reveal that imposition of a carbon tax significantly decreases carbon emissions and does not dramatically reduce economic growth. To our knowledge there has not been any research done to simulate the economic impact of emission control policies in Malaysia. Approach: Therefore this study developed an environmental computable general equilibrium model for Malaysia and investigated carbon tax policy responses in the economy applying exogenously different degrees of carbon tax into the model. Three simulations were carried out using a Malaysian social accounting matrix. Results: The carbon tax policy illustrated that a 1.21% reduction of carbon emission reduced the nominal GDP by 0.82% and exports by 2.08%; 2.34% reduction of carbon emission reduced the nominal GDP by 1.90% and exports by 3.97% and 3.40% reduction of carbon emission reduced the nominal GDP by 3.17% and exports by 5.71%. Conclusion/Recommendations: Imposition of successively higher carbon tax results in increased government revenue from baseline by 26.67, 53.07 and 79.28% respectively. However, fixed capital investment increased in scenario 1a by 0.43% and decreased in scenarios 1b and 1c by 0.26 and 1.79% respectively from the baseline. According to our policy findings policy makers should consider 1st (scenario 1a) carbon tax policy. This policy results in achieving reasonably good environmental impacts without losing the investment, fixed capital investment, investment share of nominal GDP and government revenue.
  Md. Mer Mosharraf Hossain , Md. Imtiaz Uddin , Md. Monjur Hossain , Habiba Islam , Al-Amin , Nawshin Farjana and Rukaiya Afroz
  Background and Objectives: Tilapia lake virus (TiLV) has been marked as an emerging infectious agent that causes mass die-offs in farmed mono-sex Nile tilapia (Tilapia niloticus) in Bangladesh, indicates rapid diagnostic assay. This study was aimed to develop molecular detection method to confirm the TiLV in Tilapia niloticus and construct a genetic baseline to control this disease. Materials and Methods: The research aims to the detection of TiLV followed by complementary techniques of PCR based approaches such as reverse-transcription polymerase chain reaction (RT-PCR) and RT-quantitative (q) PCR using SYBR Green I dye. The RNA quantification, followed by a PCR protocol entailing, complementary deoxyribonucleic acid (cDNA) synthesis and detection of TiLV by either conventional PCR or quantitative identification via qPCR using SYBR Green I dye. Results: This research reported a novel RNA virus allowing its clinical signs lethargy, skin erosion, exophthalmia, detached scales and 15-82% morbidity rate. The RT-PCR amplified a 491 bp fragment from segment 3 in both cases. The PCR amplification efficiency of 98.5% over a wide linear range of 2.98×101 to 2.98×1010 TiLV copies, while the NTC (no template control) produced no fluorescence and therefore no amplification. The sequence of amplified PCR products received 100, 98 and 97% identity. The phylogenetic relationship of 17 TiLV sequences was chosen to compare with GeneBank resulting a common ancestor while closely related with Columbia, India, Malaysia and Thailand. The highest pair-wise alignment score was received 90.20 for MH338228.1 (Columbia), 85.57 for MF582636.1 (India), 85.30 for MH213048.1 (Malaysia) and 86.93 for MH213039.1 (Thailand) using the sequence of TiLV segments of one TiLV-positive strain. Conclusion: The mono-sex Nile tilapia was infected with common fish pathogens, such as Aeromonas and Streptococcus. This newly developed SYBR Green-based RT-qPCR assay can be as an essential tool for TiLV diagnostics and should help to control the dissemination of this virus worldwide.
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