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Search Results: 1 - 10 of 184 matches for " Dewan Yashbir "
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Endoscopic-assisted microscopic decompression of adenoid cystic carcinoma of paranasal sinus extending to the sella: A case report and review of literature
Tripathy Pradipta,Dewan Yashbir
Neurology India , 2009,
Abstract: Technological development in neuroendoscopy has lead to an expansion of its applications. The dimensions of a microsurgical approach to the brain can greatly be enlarged with the use of endoscope, making it possible to look behind structures and around corners. We performed an endoscopic assisted microsurgical decompression of an adenoid cystic carcinoma of paranasal sinus with intracranial sellar extension with good results.
Functional outcome of corpectomy in cervical spondylotic myelopathy
Williams Kanishka,Paul Rajesh,Dewan Yashbir
Indian Journal of Orthopaedics , 2009,
Abstract: Background : Cervical spondylotic myelopathy (CSM) is serious consequence of cervical intervertebral disk degeneration. Morbidity ranges from chronic neck pain, radicular pain, headache, myelopathy leading to weakness, and impaired fine motor coordination to quadriparesis and/or sphincter dysfunction. Surgical treatment remains the mainstay of treatment once myelopathy develops. Compared to more conventional surgical techniques for spinal cord decompression, such as anterior cervical discectomy and fusion, laminectomy, and laminoplasty, patients treated with corpectomy have better neurological recovery, less axial neck pain, and lower incidences of postoperative loss of sagittal plane alignment. The objective of this study was to analyze the outcome of corpectomy in cervical spondylotic myelopathy, to assess their improvement of symptoms, and to highlight complications of the procedure. Materials and Methods: Twenty-four patients underwent cervical corpectomy for cervical spondylotic myelopathy during June 1999 to July 2005.The anterior approach was used. Each patient was graded according to the Nuricks Grade (1972) and the modified Japanese Orthopaedic Association (mJOA) Scale (1991), and the recovery rate was calculated. Results: Preoperative patients had a mean Nurick′s grade of 3.83, which was 1.67 postoperatively. Preoperative patients had a mean mJOA score of 9.67, whereas postoperatively it was 14.50. The mean recovery rate of patients postoperatively was 62.35% at a mean follow-up of 1 year (range, 8 months to 5 years).The complications included one case (4.17%) of radiculopathy, two cases (8.33%) of graft displacement, and two cases (8.33%) of screw back out/failure. Conclusions: Cervical corpectomy is a reliable and rewarding procedure for CSM, with functional improvement in most patients.
Interpretation of water quality parameters for Villages of Sanganer Tehsil, by using Multivariate Statistical analysis  [PDF]
Yashbir Singh, Manish Kumar
Journal of Water Resource and Protection (JWARP) , 2010, DOI: 10.4236/jwarp.2010.210102
Abstract: In this study, the factor analysis techniques is applied to water quality data sets obtained from the Sanganer Tehsil, Jaipur District, Rajasthan (India). The data obtained were standardized and subjected to principal components analysis (PCA) extraction to simplifying its interpretation and to define the parameters responsible for the main variability in water quality for Sanganer Tehsil in Jaipur District. The PCA analysis resulted in two factors explaining more than 94.5% of the total variation in water quality data set. The first factor indicates the variation in water quality is due to anthropogenic sources and second factor shows variation in water quality due to organic sources that are taking place in the system. Finally the results of PCA reflect a good look on the water quality monitoring and interpretation of the surface water.
CRASH-3 - tranexamic acid for the treatment of significant traumatic brain injury: study protocol for an international randomized, double-blind, placebo-controlled trial
Yashbir Dewan, Edward O Komolafe, Jorge H Mejía-Mantilla, Pablo Perel, Ian Roberts, Haleema Shakur
Trials , 2012, DOI: 10.1186/1745-6215-13-87
Abstract: The CRASH-3 trial is an international, multicenter, pragmatic, randomized, double-blind, placebo-controlled trial to quantify the effects of the early administration of TXA on death and disability in patients with traumatic brain injury. Ten thousand adult patients who fulfil the eligibility criteria will be randomized to receive TXA or placebo. Adults with traumatic brain injury, who are within 8 h of injury and have any intracranial bleeding on computerized tomography (CT scan) or Glasgow Coma Score (GCS) of 12 or less can be included if the responsible doctor is substantially uncertain as to whether or not to use TXA in this patient. Patients with significant extracranial bleeding will be excluded since there is evidence that TXA improves outcome in these patients. Treatment will entail a 1 g loading dose followed by a 1 g maintenance dose over 8 h.The main analyses will be on an ‘intention-to-treat’ basis, irrespective of whether the allocated treatment was received. Results will be presented as appropriate effect estimates with a measure of precision (95% confidence intervals). Subgroup analyses for the primary outcome will be based on time from injury to randomization, the severity of the injury, location of the bleeding, and baseline risk. Interaction tests will be used to test whether the effect of treatment differs across these subgroups. A study with 10,000 patients will have approximately 90% power to detect a 15% relative reduction from 20% to 17% in all-cause mortality.Current Controlled Trials ISRCTN15088122; Clinicaltrials.gov NCT01402882
Performance Optimization of a Six-Strand Tundish  [PDF]
Siddharth Gupta, Anupam Dewan
World Journal of Mechanics (WJM) , 2013, DOI: 10.4236/wjm.2013.33018

The aims of the present study are to predict and improve inclusion separation capacity of a six strand tundish by employing flow modifiers (dams and weirs) and to assess the influence of inclusion properties (diameter and density) together with velocity of liquid steel at the inlet gate on the inclusion removal efficiency of a six-strand tundish. Computational solutions of the Reynolds-Averaged Navier-Strokes (RANS) equations together with the energy equation are performed to obtain the steady, three-dimensional velocity and temperature fields using the standard k-ε model of turbulence. These flow fields are then used to predict the inclusion sepapration by numerically solving the inclusion transport equation. To account for the effects of turbulence on particle paths a discrete random walk model is employed. It was observed that with the employment of flow modifiers, the inclusion separation capacity of tundish increases without any large variation in the outlet temperatures. It is shown that inclusion properties and velocity are important parameters in defining the operating conditions of a six-strand tundish.

The BRAIN TRIAL: a randomised, placebo controlled trial of a Bradykinin B2 receptor antagonist (Anatibant) in patients with traumatic brain injury
Haleema Shakur, Peter Andrews, Toomas Asser, Laura Balica, Cristian Boeriu, Juan Quintero, Yashbir Dewan, Patrick Druwé, Olivia Fletcher, Chris Frost, Bennie Hartzenberg, Jorge Mantilla, Francisco Murillo-Cabezas, Jan Pachl, Ramalingam R Ravi, Indrek R?tsep, Cristina Sampaio, Manmohan Singh, Petr Svoboda, Ian Roberts
Trials , 2009, DOI: 10.1186/1745-6215-10-109
Abstract: Adults with traumatic brain injury and a Glasgow Coma Scale score of 12 or less, who had a CT scan showing an intracranial abnormality consistent with trauma, and were within eight hours of their injury were randomly allocated to low, medium or high dose Anatibant or to placebo. Outcomes were Serious Adverse Events (SAE), mortality 15 days following injury and in-hospital morbidity assessed by the Glasgow Coma Scale (GCS), the Disability Rating Scale (DRS) and a modified version of the Oxford Handicap Scale (HIREOS).228 patients out of a planned sample size of 400 patients were randomised. The risk of experiencing one or more SAEs was 26.4% (43/163) in the combined Anatibant treated group, compared to 19.3% (11/57) in the placebo group (relative risk = 1.37; 95% CI 0·76 to 2·46). All cause mortality in the Anatibant treated group was 19% and in the placebo group 15.8% (relative risk 1.20, 95% CI 0.61 to 2.36). The mean GCS at discharge was 12.48 in the Anatibant treated group and 13.0 in the placebo group. Mean DRS was 11.18 Anatibant versus 9.73 placebo, and mean HIREOS was 3.94 Anatibant versus 3.54 placebo. The differences between the mean levels for GCS, DRS and HIREOS in the Anatibant and placebo groups, when adjusted for baseline GCS, showed a non-significant trend for worse outcomes in all three measures.This trial did not reach the planned sample size of 400 patients and consequently, the study power to detect an increase in the risk of serious adverse events was reduced. This trial provides no reliable evidence of benefit or harm and a larger trial would be needed to establish safety and effectiveness.This study is registered as an International Standard Randomised Controlled Trial, number ISRCTN23625128.Cerebral oedema is associated with significant mortality and morbidity after traumatic brain injury (TBI). It develops soon after injury, reaching a maximum between 3 and 5 days post injury [1]. An increase in the permeability of the blood-brain barrier (BB
Measuring the Severity of a Banking Crisis and Finding Its Associated Factors: How Are the Factors Different for Simple and Severe Banking Crises?  [PDF]
Anichul Hoque Khan, Hasnat Dewan
Theoretical Economics Letters (TEL) , 2014, DOI: 10.4236/tel.2014.49109
Abstract: This study measures the severity of a banking crisis by using its duration and the cost. Using this new methodology, we find that the factors associated with a severe banking crisis are not quite the same as those associated with a simple banking crisis. An ordered logit model and a large panel data set were used for this study. One of our major findings is that there exists a four-year time lag between an economic boom, or financial system liberalization, and the occurrence of a severe banking crisis in a country. This indicates that banking problems start much earlier than the time when they are revealed as banking crises. This study also finds that the lower the remains of a past banking crisis, the higher the probability of a severe banking crisis. It could be due to less-attentiveness of banking sector policy-makers with elapsed time. A high rate of inflation, existence of an explicit deposit insurance scheme, and a weak institutional environment are found to be common factors positively associated with both simple and severe banking crisis.
St. Thomas and the Divine Origin of Law: Some Notes
Civilizar Ciencias Sociales y Humanas , 2008,
Abstract: this article presents a series of notes in the concept of law and its relacionship to god in classical antiquity, specifically taking into account the viewpoints of aristotle and saint thomas aquinas.
Medical toxicology: Need for recognition as a subspecialty
Dewan Aruna
Indian Journal of Pharmacology , 2011,
Does the Primary Condition for a Sustainable Human Development Meet the Feasibility Condition of Cost-Benefit Analysis?
Hasnat Dewan
Journal of Sustainable Development , 2011, DOI: 10.5539/jsd.v4n2p3
Abstract: The primary condition for a sustainable human development (SHD) uses both monetary and non-monetary indicators to determine the sustainable level of human development. As defined, this condition can be expressed in terms of the damage elasticity of human development, where damage is defined based on the non-monetary cost to the natural and social environments (NSE). A comparison between this sustainability condition and the feasibility condition of cost-benefit analysis (CBA) is useful for determining the sustainability premium or the deadweight loss. Since the cost-benefit methodology uses monetary estimates of all impacts and the primary condition for sustainable human development uses both monetary and non-monetary indicators, the two methodologies are unlikely to yield the same outcome unless there is a one-to-one relationship between monetary and non-monetary benefits and costs. Unlike the feasibility condition of CBA, the primary condition for a sustainable human development varies based on the level of human development and the damage to the NSE in any locality/country.
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