Santosh Kumar

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One formidable difficulty in quantum communication and computation is to protect information-carrying quantum states against undesired interactions with the environment. To address this difficulty, many good quantum error-correcting codes have been derived as binary stabilizer codes. Fault-tolerant quantum computation prompted the study of nonbinary quantum(More)
OBJECTIVE To evaluate the role of 2 different α-1 blockers and 1 phosphodiesterase-5 inhibitor as medical expulsive therapy for distal ureteric calculi. MATERIALS AND METHODS Between January 2011 and December 2012, 285 patients presenting with distal ureteric stones of size 5-10 mm were on consent randomly assigned to 1 of 3 outpatient treatment arms:(More)
BACKGROUND Schizophrenia is a highly disabling illness. Previous studies have shown yoga to be a feasible add-on therapy in schizophrenia. AIMS The current study aimed to test the efficacy of yoga as an add-on treatment in outpatients with schizophrenia. SETTINGS AND DESIGN The study done at a tertiary psychiatry center used a single blind randomized(More)
Cardiac hypertrophy (CH) is an adaptive response of the heart to pressure overload. It is a common pathological feature in the natural course of some major cardiovascular diseases, like, hypertension and myocardial infarction. Cardiac hypertrophy is strongly associated with an increased risk of heart failure and sudden cardiac death. The complex and dynamic(More)
OBJECTIVES To evaluate the role of tamsulosin in the clearance of fragments after extracorporeal shock wave lithotripsy (ESWL) to treat renal calculi. METHODS In this open-label prospective randomized study conducted at our institute from 2006 to 2007, 139 patients with normal renal function and a single radiopaque renal calculus, 5-20 mm, undergoing ESWL(More)
OBJECTIVES To investigate the role of tamsulosin as an adjunct to management of upper ureteric stones (UUS) with extracorporeal shock wave lithotripsy (SWL). METHODS In this prospective, randomized, open label study, patients with single UUS (for SWL) were randomly assigned into 2 groups based on whether they received 0.4 mg tamsulosin (group A and B,(More)
Aneurysms are a rare cause of hemobilia, and usually involved are branches of the hepatic and gastro-duodenal arteries. A case of a patient with hemobilia secondary to a pseudoaneurysm of the cystic artery is presented. Fewer than 10 cases have been reported in the literature, and in all of them the condition was associated with inflammation of the gall(More)
Maximal androgen blockade (MAB) refers to the combination of medical (gonadotrophin-releasing hormone agonist) or surgical castration with an anti-androgen for the treatment of advanced prostate cancer. A substantial body of basic research has improved our understanding of the interactions between the anti-androgens, the androgen receptor, and androgen(More)
Tuberculosis is a chronic granulomatous disease that rarely affects oral cavity. Tuberculous lesions of the oral cavity are frequently overlooked in the differential diagnosis of oral lesions. The oral clinical presentation of tuberculosis may take many forms as ulcers, nodules, tubercular fissure, tubercular papilloma and tuberculomas. Diagnosis is(More)