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Articles by R. Karim
Total Records ( 3 ) for R. Karim
  Sajib K. Mistry , R. Karim , K. Sakib and M.H. Kamal
  Modern technologies have become an evident solution to reduce undesirable highway casualties and fatalities. The convergence of Wireless Sensor Network (WSN) and telematics creates the opportunity to develop cost effective and easily manageable highway safety services for developing countries. In this study, the architecture of a Smart Highway System (SHS) is designed using WSN. The SHS increases highway safety by early collision warning, detecting violation of speed limit and automatic reporting of unnatural events like road accidents. The network for the SHS is self-constructed using the proposed algorithm automatic route initialization, which inherently detects sensor node failures and increases system stability by re-constructing the network. To construct the SHS, prototype sensor architecture is designed to detect velocity and moving direction of vehicles using a noise free weight threshing technique in a single package. The sensor readings and warning signal of base station propagate through the network using the data model of the TinyDB and reverse modification process of Directed Diffusion. An exhaustive simulation was performed to analyze the effectiveness of the system and to find relationship among hop-counts of the network, average distance of the deployed sensor nodes and the highest manageable vehicle velocity by the SHS. The simulation result shows that if number of hop-counts increases then the spacing among the sensor nodes on the roads should be increased. The correctness of the proposed SHS system is exemplary to develop new applications using WSN for developing countries.
  A. Tabassum , R.R. Saha , M.S. Rahman , M.A. Nure , R. Karim , A.H.M.R. Imon , M. Maniruzzaman , A.K.L. Kabir , A. Islam , J.F. Chaity , B.C. Adhikary , A. Sarwar , T.B. Huq and Mst. M. Begum
  Background and Objective: Pain management has been an area of a great deal of attention for pharmacists for many years. In this study, we report a study which is designed to investigate how a combination of existing effective drugs performs for the relief of pain management. Materials and Methods: A combined solid dosage containing paracetamol (500 mg) and ibuprofen (150 mg) is developed and tested under an observational analytical study. The performance of this combined oral solid dosage named maxigesic tablet in order to reduce pain is investigated on the basis of European patent specification. This assay is carried out by employing HPLC system with UV detection at 222 nm. Results: The results show the presence of active components to the tune of 112.12% for paracetamol and 101.86% for ibuprofen. The formulated solid dosage is further subjected to separate groups of artificially pain induced mice for a comparative study and it shows more efficacy than single analgesic used in pain management. We observe that the respective potencies for paracetamol and ibuprofenare 98.57 and 102.90%. Conclusion: The characterization of both granules and tablets of newly developed formulation demonstrates significant improvement in results of analytical test that not only met the standard specification, but they also reveal that the combined dosage will improve the product quality, efficacy and patient safety in the long run. This trial also shows a significant difference in the percentage of pain inhibition between the two sets of formulations (single and combination of them).
  E. Erwan , A.R. Alimon , A.Q. Sazili , H. Yaakub and R. Karim
  A study was conducted to evaluate the effects of leucine supplementation in grower-finisher diets containing varying levels of energy on the sensory characteristics and carcass composition of broiler chickens. In a 2 x 2 factorial arrangement, eighty 21-day old Cobb broiler chicks were divided into 16 groups and fed diets supplemented with 0 or 0.5 % L-leucine and metabolizable energy (ME) concentration at either 3200 kcal/kg or 3000 kcal/kg, for three weeks. Feed intake, growth performance and feed conversion ration were determined on a weekly basis. At the end of the trial, the birds were slaughtered, carcass composition determined and meat samples taken for sensory evaluation. There was no interaction between level of L-leucine and ME on the sensory characteristics and carcass composition at 42 days. Dietary level of L-leucine and ME had no significant effect (P>0.05) on the live-weight, breast meat, lean, bone, fat and skin. Similarly, the flavour, tenderness, aroma, juiciness and overall acceptability scores of breast meat of broiler fed diets supplemented with leucine were also not significantly different. Further research is needed to evaluate the potential impact of excess leucine in diets with reduced levels of crude protein.
 
 
 
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