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Darwin, P.
- Cross Layer Architecture for Maintaining QoS in Multimedia Applications
Authors
1 Department of Computer Science and Engineering, Vel Tech University, Chennai – 600062, Tamil Nadu, IN
2 Department of Information Technology, Vel Tech University, Chennai – 600062, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 31 (2016), Pagination:Abstract
Background/Objectives: Multimedia Applications on Mobile Ad hoc Networks (MANETs) are gaining immense popularity recently due to their necessity in latest environments. Hence, multimedia applications like video streaming, video conferencing and environment monitoring must be made possible in real-time in Mobile Ad hoc Networks. Mobility of nodes, life of battery, changes in topology and protocols affect the performance of MANET. Hence providing good Quality of Service (QoS) for multimedia applications in MANET is a challenge. Methods/Statistical Analysis: The RED algorithm with video precedence called as SiViRED (Significant Video Information Random Early Detection) - AQM in the Network layer that provides service differentiation based on the pre-assigned service classes and video packet drop priority specified in packet header. This will reduce congestion and decrease delay and jitter when compared to conventional methods. Findings: Proposed a novel technique that uses a cross layer architecture in which information from application layer is used with UDPLite in Transport layer and Active Queue Management (AQM) with SiViRED in Network Layer with modified dynamic mapping in MAC layer that guarantees 14% increase in Peak Signal to Noise Ratio (PSR) and 40% decrease in delay compared to conventional methods. Application/Improvements: Developed a cross layer technique that improves the end-to-end performance of multimedia services over Mobile Ad hoc Networks.Keywords
Delay, Jitter, Mobile Ad hoc Networks, PSNR, QoS.- Affectability of USG Guided FNAC of Axillary LYMPH Nodes in Breast Cancer Patients with Clinically Node Negative Axilla
Authors
1 Sree Balaji Medical College and Hospital, Bharath Institute of Higher Education and Research, Chennai-73, IN
2 Department of General Surgery, Sree Balaji Medical College and Hospital, Bharath Institute of Higher Education and Research, Chennai-73, IN
Source
Indian Journal of Public Health Research & Development, Vol 10, No 11 (2019), Pagination: 1476-1479Abstract
This is a prospective study undertaken at Sree Balaji Medical College and Hospital between August 2016 and August 2018 to evaluate the sensitivity of USG-guided axillary node FNAC in breast cancer females. 40 patients with biopsy have been shown to have breast cancer but clinically adverse axilla. Sensitivity and specificity were calculated by comparing the FNAC report to the postoperative histopathological report.
In this study US-FNAC showed the accuracy of 90.9% .USG of axilla in correlation with US-FNAC showed the sensitivity, specificity, PPV and NPV of 97.77%, 25%, 92.01%, and 50% respectively.
Keywords
Lymph Nodes, Axilla.- Sonological Evaluation of the Clinically Negative Axilla in Women with Breast Cancer
Authors
1 PG Student, Dept. of General Medicine, Sree Balaji Medical College and Hospital, Bharath Institute of Higher Education and Research, Chennai, IN
Source
Indian Journal of Public Health Research & Development, Vol 10, No 11 (2019), Pagination: 3956-3959Abstract
The prognosis of breast carcinoma is dramatically altered by the presence of axillary lymph nodes. Hence, great importance is now given to axillary staging, One of the baseline investigations done for the axilla is sonology , to identify suspicious nodes.It is also part of the triad of triple assessment.This study aims to identify the common suspicious features of axillary nodes. 40 patients with breast cancer and with clinically node negative axilla were taken up for the study, and ultrasound of the axilla was done for them. On correlation of specific sonological characteristics with US-FNAC, the feature most predictive of malignancy was the absence of fatty hilum (34 cases) Hypoechoic cortex was the second best predictor (32 cases),followed by L/D ratio (31 cases). The ability of ultra sonogram to detect more suspicious lymph nodes increased with increasing tumour size.
With Westernization, and development of previously backward countries, one of the drawbacks is the rise of breast cancer, due to the life style,and unhealthy diet.Studies show that 1 in 8 women develop breast cancer during their life time.Of these, early detection and aggressive treatment can help cure them completely.A factor which dramatically changes the prognosis of the patient is the presence or absence of ipsilateral axillary nodal metastasis.This can be evaluated radiologically by sonology.