Navdeep Singh

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AIMS The purpose of the study was to evaluate the role of Magnetic Resonance Imaging in detection and characterization of perianal fistulae and correlating it with surgical findings. METHODS Fifty consecutive patients with suspected perianal fistulae having one or more external openings were prospectively selected for MRI evaluation. Previously operated(More)
Automatic speech recognition, which was considered to be a concept of science fiction and which has been hit by number of performance degrading factors, is now an important part of information and communication technology. Improvements in the fundamental approaches and development of new approaches by researchers have lead to the advancement of ASRs which(More)
BACKGROUND Follicular variant of papillary thyroid cancer (FV-PTC) is the second most common subtype of papillary thyroid cancer (PTC) after classic PTC. FV-PTC is characterized by nuclear features consistent with classic PTC but has a follicular architecture that lacks classic papillary morphology. Thyroid cancer rarely metastasizes to the kidney. Only 6(More)
This paper deals with the image compression using fractional Fourier transform (FRFT), fractional cosine transform (FRCT), Fourier transform (FT) and cosine transform (CT). A comparison has been made between these techniques and observed that a good fidelity of decompressed image can be achieved at different fractional values of the transforms. The FRFT(More)
Occupational and environmental lung disease is a vast topic. Therefore, this review focuses on areas that represent new clinical insights that have not been addressed recently in Current Opinion in Pulmonary Medicine. The topics are considered important for the future and emphasize diseases that strike large numbers of people or exposures that affect large(More)
Physiologic stress associated with illness and hospitalization is known to result in gastrointestinal ulceration, especially among the critically ill. The complication of this stress-related mucosal disease could be prevented with appropriate application of pharmacologic prophylaxis. Vigilance by the nursing staff is required to properly detect and manage(More)
Sertraline, a selective serotonin reuptake inhibitor (SSRI), was used in a dose of 25 mg orally daily in 12 moderate to severely depressed patients of end stage renal disease (ESRD) on maintenance haemodialysis. Virtually all of them showed features of hyperserotonin state and in 11 drug was stopped within 3 weeks. One of the patients developed almost fatal(More)
In this paper, a comprehensive approach to numerical and experimental analysis of microchamber filling in centrifugal microfluidics is presented. In the development of micro total analysis systems, it is often necessary to achieve complete, uniform filling of relatively large microchambers, such as those needed for nucleic acid amplification or detection.(More)
Diabetic Retinopathy occurs in patients who suffer from diabetes for many years and as a result of which the vision gets affected. The affect can be low to severe depending on the extent to which the disease has occurred. There are two stages of the disease. The early stage is Non proliferative diabetic retinopathy (NPDR) and later is Proliferative diabetic(More)
The petroleum ether (PE), chloroform (CH), ethanol (ETH) and water extracts of E. arvense stems were evaluated for anti-anxiety activity in mice using elevated plus maze model. Ketamine induced hypnosis and actophotometer was used to evaluate sedative effect with various extracts in mice. The results were compared with standard drug diazepam. The ethanolic(More)