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Cylindrical shell is the most important structural component of all existing shell's modals. It has been widely used in many engineering applications. They play imperative role in designing machines components and building structure. They are frequently used in almost every field of engineering and modern technology such as civil, aerospace, chemical, mechanical, naval, and nuclear etc. They have been extensively used for the purpose of load-carrying in the past and recently they have acquired a paramount and valuable place for their practical applications in constructing gas cylinders,...

This work is concerned with the determination of blood parameters, enzyme levels, blood chemistry and pesticide residues in the blood samples from different divisions of Sindh and from different farm field of rural areas of Sindh in comparison with unexposed persons (control). Total 177 blood samples from 59 persons (exposed to pesticide) were collected, to assay the pesticide residues in their blood and also observed the biochemical and hematological changes in the blood of affected persons. Such work has not been done on this aspect. So this is the first comprehensive work on this aspect....

Bacterial enzymes such as penicillin acylases are used for biosynthesis of betalactam antibiotics. The present study highlights the importance of manipulation of microbiological media and methods for isolation and characterization of bacterial strains having potential for penicillin acylases. Simple approach has been adopted for developing mutants with enhanced production of penicillin acylase. Bacterial strains collected from different ecological niches have unique properties and manifests diverse levels of enzyme activity. The high diversity in the natural population demonstrates that broad...