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Articles by Mohd Rafatullah
Total Records ( 3 ) for Mohd Rafatullah
  Kaizar Hossain , Shlrene Quaik , Norli Ismail , Mohd Rafatullah , Isahaque Ali , Zulkarnain A. Hatta , Maruthi Avasn , Gaurav Pant and Shaik Rameeja
  Global environmental changes have the potential to exacerbate the ecological and societal impacts of changes in biodiversity. In many regions, land conversion forces declining populations towards the edges of their species range, where they become increasingly vulnerable to collapse if exposed to further human impact. South Asia is home to over one fifth of the world’s population and is known to be the most disaster prone area in the world. The high rates of population growth and natural resource degradation, with enduring high rates of poverty and food diffidence make South Asia one of the most vulnerable regions to the impacts of climate change. Temperature rise will negatively impact crop yields in tropical parts of South Asia where these crops are already being grown close to their temperature tolerance threshold. While direct impacts are associated with rise in temperatures, indirect impacts due to water availability and changing soil moisture status and pest and disease incidence are likely to be felt. The most significant impacts are likely to be borne by small-holder rainfed farmers who constitute the majority of farmers in this region and possess low financial and technical capacity to adapt to climate variability and change. This article will be improved the understanding of the climate change impacts, vulnerability and the adaptation practices to cope with climate change could help this process.
  Kaizar Hossain , Shlrene Quaik , Gaurav Pant , Sarita Yada , Y.A. Maruthi , Mohd Rafatullah , Mohammed Nasir and Norli Ismail
  Environmental pollution is a major global concern. When sources of water pollution are enumerated, agriculture is, with increasing frequency, listed as a major contributor. One of the major factors determining uptake and toxicity to plants is the form of arsenic (As). The present study deals with the source of arsenic contamination in groundwater, accumulation of the toxin in soils and crops in the affected belt of West Bengal irrigated with contaminated groundwater and in animal tissues and products and demonstrates the pathways, other than drinking water, through which arsenic may have access to human, animal and crop systems. This article can be established well with the findings of a rice pot-culture experiment with different crop plants raised in a crop cafeteria experiment exhibited varying tendencies to accumulate arsenic in different plant parts in the following sequence: root>stem>leaf>economic produce.
  Wang Jiao , Mohd Rafatullah , Norhashimah Morad , Kaizar Hossain and Teng Tjoon Tow
  The extraction of Rhodamine B (RB) dye from aqueous solution by using soybean oil as organic solvent was investigated in this study. This study is aimed to found out the significant factors, which affect the efficiency of RB extraction using a full factorial design. A total of four factors (pH, organic to aqueous phase ratio, mixing time and mixing speed) were investigated. A full factorial design was applied and the results were analyzed statistically and only pH, organic phase to aqueous phase ratio and their second-order interaction influence the RB extraction significantly. The regression model for RB extraction was developed and the adequacy of the model was examined. The value of R2adj (98.57%) and R2 (99.71%) were found that results showed the full factorial design is a very useful tool for the screening of factors.
 
 
 
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