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Search Results: 1 - 10 of 201461 matches for " Murthy P "
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Intraoperative Auditory Evoked Potential Monitoring for Anaesthesia Depth and Utilization of Inhaled Isoflurane  [PDF]
Kunal Tewari, T. V. S. P. Murthy
Open Journal of Anesthesiology (OJAnes) , 2017, DOI: 10.4236/ojanes.2017.74011
Abstract: Background: Hypnosis monitoring has been shown to reduce the incidence of awareness. A-line ARX-IndexTM (AAI) derived from auditory evoked potentials (AEP) represents as a numerical variable depth of anaesthesia. Objectives: To study the efficacy of AEP as an indicator of anaesthetic depth and monitor intraoperative awareness in neurosurgical patients by using the AAI scale. Design: Prospective cohort study is used. Setting: The study is in Neurosurgical centre of Tertiary care hospital. Participants: Neurosurgical patients requiring general anaesthesia with duration of surgery between 90 - 150 minutes were enrolled for the study. Intervention: Patients in Group 1 (control) were monitored by conventional methods. Patients in Group 2 (study) underwent intraoperative monitoring by using the AEP monitor. Primary outcome: To study the efficacy of AEP monitoring and AAI index for monitoring the depth of anaesthesia and reducing the incidence of awareness. Results: There was no significant difference in the intraoperative haemodynamic responses measured between the two study groups (p > 0.5). There was no significant difference in the identification of intraoperative awareness by using conventional parameters between the two groups (p > 0.5). There was also a significantly faster time to recovery for patients in Group 2 (p < 0.05). Conclusion: Hypnosis monitoring using AEP monitor/AAI in neurosurgical patients under general anaesthesia did not show any significant difference in haemodynamic response and intraoperative awareness but had significant lower consumption of volatile anaesthetic with cost sparing effect and a faster recovery time as compared to conventional monitoring.
The effects of gamma and ethylmethanesulphonate treatments on agronomical traits of niger (Guizotia abyssinica Cass.)
P Naik, H Murthy
African Journal of Biotechnology , 2009,
Abstract: No
A comparison of different methods for decomposition of changes in expectation of life at birth and differentials in life expectancy at birth
P. K. Murthy
Demographic Research , 2005,
Abstract: Several methods were proposed to decompose the difference between two life expectancies at birth into the contribution by different age groups. In this study an attempt has been made to compare different methods with that of Chandra Sekar (1949) method. The methodologies suggested by Arriaga, Lopez and Ruzicka and Pollard have been extended. It is shown that all the three methods and also Chandra Sekar method in their modified (symmetrical) form will be seen to produce the same result as that of United Nations, Pollard, Andreev and Pressat. Finally it is suggested to use symmetric formulae of the above methods because the percent contribution of total of the interaction terms to the difference in the life expectancy at birth is observed to be very negligible.
Ludwig Boltzmann, Transport Equation and the Second Law
K. P. N. Murthy
Physics , 2006,
Abstract: Ludwig Boltzmann had a hunch that irreversibility exhibited by a macroscopic system arises from the reversible dynamics of its microscopic constituents. He derived a nonlinear integro-differential equation - now called the Boltzmann equation - for the phase space density of the molecules of a dilute fluid. He showed that the Second law of thermodynamics emerges from Newton's equations of motion. However Boltzmann realized that stosszahlansatz, employed in the derivation, smuggles in an element of stochasticity into the transport equation. He then proposed a fully stochastic description of entropy which laid the foundation for statistical mechanics. Recent developments, embodied in different fluctuation theorems, have shown that Boltzmann's hunch was, in essence, correct.
An Introduction to Monte Carlo Simulation of Statistical physics Problem
K. P. N. Murthy
Physics , 2001,
Abstract: A brief introduction to the technique of Monte Carlo simulations in statistical physics is presented. The topics covered include statistical ensembles random and pseudo random numbers, random sampling techniques, importance sampling, Markov chain, Metropolis algorithm, continuous phase transition, statistical errors from correlated and uncorrelated data, finite size scaling, n-fold way, critical slowing down, blocking technique,percolation, cluster algorithms, cluster counting, histogram techniques, entropic/multicanonical Monte Carlo, Wang-Landau algorith and Jarzynski's identity.
Monte Carlo: Basics
K. P. N. Murthy
Physics , 2001,
Abstract: An introduction to the basics of Monte Carlo is given. The topics covered include, sample space, events, probabilities, random variables, mean, variance, covariance, characteristic function, chebyshev inequality, law of large numbers, central limit theorem (stable distribution, Levy distribution), random numbers (generation and testing), random sampling techniques (inversion, rejection, sampling from a Gaussian, Metropolis sampling), analogue Monte Carlo and Importance sampling (exponential biasing, spanier technique).
Relationship of trait anger with quality of life and anger control among alcohol users  [PDF]
Manoj Kumar Sharma, L. N. Suman, Pratima Murthy, P. Marimuthu
Open Journal of Psychiatry (OJPsych) , 2012, DOI: 10.4236/ojpsych.2012.24033
Abstract: Background: Abstinence and anger control are promoted as ways to improve quality of life. Trait anger has been seen as one casual factor for alcohol related aggression and poor quality of life. The present study assesses anger control, quality of life and its relation with trait anger among alcohol dependents, abstainers & social drinkers. Material & Method: 150 subjects (50 subjects in each group) in the age range of 20 - 45 years were taken for the study. Semi-structured interview schedule, State-Trait Anger Expression Inventory-2, WHOQOL-BREF were administered in individual setting. Results: Dependent alcohol users and abstainers reported the significant impact of alcohol use on family & occupational functioning. Quality of life has correlation with anger control (in/out), trait anger, temperament & reaction in the control & abstainers group, whereas quality of life has negative correlation with trait anger expression among the alcohol group. Conclusions: Alcohol use has been associated with the trait anger expression and poor quality of life. It has implications for promoting alcohol abstinence, in improving quality of life and in anger control.
Preparation and characterization of Ni–Zn ferrite + polymer nanocomposites using mechanical milling method
P. Raju,S. R. Murthy
Applied Nanoscience , 2013, DOI: 10.1007/s13204-012-0163-z
Abstract: The insulating properties of Ni–Zn ferrites can be improved by the addition of various types of insulating materials such as polymers, ceramics, etc. In this connection, ferrite–polymer composites have been subjected to extensive research, because they have many applications: electromagnetic interference shielding, rechargeable battery, electrodes and sensors, and microwave absorption. Electrical and magnetic properties of such composites will depend on the size, shape and amount of filler addition. In this paper, we report the preparation and characterization of nanocomposites of Ni–Zn ferrite + paraformaldehyde. These nanocomposites were prepared by using mechanical milling method and characterized by X-ray powder diffraction, scanning electron microscopy (SEM) and Fourier transform infrared spectrometer. The particle size estimated from SEM pictures for composites varies from 36 to 60 nm. Magnetic properties were measured on nanocomposites at room temperature. The complex permittivity and permeability were measured over a wide frequency range from 1 MHz to 1.8 GHz at room temperature. From our studies, it is observed that both the values of permittivity and permeability decrease with an increase in polymer content.
Management of pemphigus vulgaris during acute phase
Kar P,Murthy P,Rajagopal R
Indian Journal of Dermatology, Venereology and Leprology , 2003,
Abstract: We present our experience with 21 patients of pemphigus vulgaris seen over a period of 10 years managed in service hospitals during acute phase of the disease. Age groups of patients ranged from 25-45 years. Eighteen (85.7%) were young adults, 30-40 years of age. Fifteen (71.4%) were men and 6(28.6%) were women. All the cases were hospitalized in ICU, till the acute phase of the disease subsided. Complete hematological profile, urinalysis, serum biochemistry and repeated bacterial cultures from the skin were carried out in all patients at the time of admission and thereafter weekly. The treatment comprised of potassium permanganate lotion bath (1:10000) and 1 framycetin gauze dressing of the denuded areas, maintenance of fluid and electrolyte balance. All suspected infections and septicemia were treated with appropriate antibiotics. The corticosteroids were usually administered as a single dose of prednisolone 1 mg/kg/day. Cyclophosphamide was given at an initial dose of 50mg/day and the dose was escalated to 100mg/day. Once the bulk of the lesions were healed, the dose of corticosteroids was gradually lowered by approximately 50% every two weeks and cyclophosphamide was continued till patients were symptomfree. Out of 21 patients receiving corticosteroids, cyclophosphamide and other supportive therapy, 20(95%) had undergone clinical resolution of the disease. During follow up study 15(71.4%) patients remained symptom-free and undergone clinical remission. Five patients (23.8%) had relapse, out of which 4(19%) remained symptom free, after subsequent treatment. There was one death (4.7%) in our study.
Problem drinking among male inpatients in a rural general hospital
Sampath S,Chand P,Murthy P
Indian Journal of Community Medicine , 2007,
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