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Your search keyword '"Abbassi, Shahid"' showing total 8 results
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8 results on '"Abbassi, Shahid"'

1. A framework for the simulation of CR-VANET channel sensing, coordination and allocation

Author

Abbasi, Hameer, Abbassi, Shahid H., and Qureshi, Ijaz M.

Subjects
Computer Science - Networking and Internet Architecture
Abstract

VANETs are considered as networks of critical future importance, with the main concern being the safety of travelers and infrastructure. A lot of methods for coordination and channel allocation in the context of VANETs are being introduced. As such, the need of a framework to reliably compare the relative performances of different channel sensing, allocation and coordination schemes which takes into account the movement of vehicles is felt. In this paper, we introduce a framework that can be used to define and compare such schemes in a variety of scenarios. Simulation results clearly show the robustness of our technique by eliminating the misdetections and reducing to a great extent the false alarms., Comment: 20 pages, 13 figures

Published
2015

8. Genus and species-specific IgG and IgM antibodies for pulmonary tuberculosis.

Author

Butt T, Malik HS, Abbassi SA, Ahmad RN, Mahmood A, Karamat KA, and Anwar M

Subjects
Humans, Immunoenzyme Techniques methods, Reagent Kits, Diagnostic, Sensitivity and Specificity, Serologic Tests methods, Antibodies, Bacterial analysis, Immunoglobulin G immunology, Immunoglobulin M immunology, Tuberculosis, Pulmonary diagnosis
Abstract

Objective: To evaluate three different enzyme immunoassays for serological diagnosis of pulmonary tuberculosis and to compare their diagnostic accuracy in different combinations., Design: A non-interventional comparative study., Place and Duration of Study: The study was carried out at the Department of Microbiology, Armed Forces Institute of Pathology, Rawalpindi between April and September 2001., Subjects and Methods: Sera from patients suffering from pulmonary tuberculosis (n=94) with sputum positive for acid fast bacilli (AFB) and sera from control group of healthy individuals (n=90) with sputum negative for AFB were tested by Pathozyme-Myco G EIA, Pathozyme-TB Complex Plus EIA and Pathozyme Myco M EIA kits for the genus-specific IgG and IgM, and the species-specific IgG antibodies against antigens of Mycobacterium tuberculosis., Results: The detection of IgG against genus-specific antigens by Pathozyme-Myco G had a sensitivity of 46% and a specificity of 93%, of IgG against species-specific antigens by Pathozyme-TB Complex Plus had a sensitivity of 64% and specificity of 97% and of IgM against genus-specific antigens by Pathozyme Myco M had a sensitivity of 67% and specificity of 98%. When the results of these immunoassays were evaluated in combination, their sensitivity improved. Combination of genus-specific IgM and species-specific IgG yielded best results with a sensitivity of 87% and specificity of 93%., Conclusion: The sensitivity of serological diagnosis of tuberculosis is low, but it can be increased by utilizing a combination of several antigens.

Published
2004
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