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In this paper, we outline an approach to improve the lifespan of a wireless sensor network by introducing a variant to standard sleep synchronization protocols. A multilayered architecture is used. To ensure even higher scalability and lower message size in any particular layer, number of layers is limited to four and each layer is broken into grids. Each(More)
On-board TCP (obTCP) has been shown to provide significant downloading performance improvement over TCP snoop in moving networks. In this paper, we look into the support for uploading performance of TCP. We believe that this aspect is critical for the general deployment of Internet applications on moving networks. We provide a mathematical model to measure(More)
Many patients requiring plasmapheresis (PE) have renal failure and also need hemodialysis. If done separately almost 6-7 h is required. Hence, we decided to perform the procedures simultaneously in those patients requiring both PE and hemodialysis. The plasmafilter was inserted into the extracorporeal circuit after the hemodialyzer. A total of 8 such(More)
A novel mixed-ligand Cu(II) complex of ciprofloxacin (cfH) and phenanthroline, is found to crystallize as a dimeric moiety containing monocationic and dicationic species. Two such dimeric moieties are found in the same unit cell leading to a dicationic cluster. The higher negative redox potential for this cluster dampens its antimycobacterial activity(More)
This prospective comparative study was conducted in the department of Pediatric Surgery, Dhaka Shishu (children) Hospital during the period of June 2007 to September 2008 with the children of <12 years, diagnosed as acute Appendicitis. Patient selection was done by simple random technique by means of lottery. For open Appendectomy (OA) conventional method &(More)
This prospective comparative study was conducted with an initial experience in the Department of Pediatric Surgery, Dhaka Shishu (Children) Hospital during the period of December 2007 to January 2009, with the infants of 2-12 weeks age, diagnosed as Hypertrophic pyloric stenosis. Patients selection was done by simple random technique by means of lottery.(More)
The regulation of protein synthesis was studied in KRC-7 cells (rat hepatoma) grown in complete medium, during serum starvation, and mitogen activation. Upon serum starvation, the cells lost almost completely p67 mRNA, p67 protein, and protein synthesis activity. After phorbol 12-myristate 13-acetate addition, the same serum-starved cells regained p67 mRNA,(More)
An eIF-2 associated 67-kDa protein (p67) protects eIF-2 alpha-subunit from eIF-2 kinase(s) catalyzed phosphorylation and promotes protein synthesis in the presence of active eIF-2 kinase(s). p67 is a glycoprotein and contains multiple O-linked GlcNAc moieties. We have now studied the roles of hemin, p67, and the glycosyl residues on p67 in the regulation of(More)
A eukaryotic initiation factor 2 (eIF-2) associated 67-kDa polypeptide (p67) protects the eIF-2 alpha-subunit from eIF-2 kinase(s) catalyzed phosphorylation, and this promotes protein synthesis in the presence of active eIF-2 kinase(s), [Datta, B., et al. (1988) Proc. Natl. Acad. Sci. U.S.A. 85, 3324-3328]. This report presents the results of studies(More)