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Search Results: 1 - 10 of 87 matches for " Akshatha Ranganath "
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Late-Onset Endophthalmitis Secondary to Exposed Glaucoma Tube Implant in a Rare Case of Paediatric Glaucoma
Akshatha Ranganath,Adnan Hashim
Case Reports in Ophthalmological Medicine , 2011, DOI: 10.1155/2011/183647
Abstract: Glaucoma drainage implants (GDIs) are used to treat paediatric glaucoma resistant to conventional medical and surgical treatment, achieving good intraocular pressure (IOP) control and long-term success. Late endophthalmitis is a rare complication that may develop following GDI surgery. A 17-year-old male presented with acute endophthalmitis 2 years after Ahmed glaucoma valve implantation with pericardial patch graft for management of refractory glaucoma secondary to congenital ectropion uveae. The glaucoma tube was exposed due to erosion of the overlying conjunctiva with no visible pericardial graft. After control of active infection, he underwent tube revision surgery whereby the exposed tube was retained and repatched with a double-thickness pericardial patch graft. He did well following surgery with good control of IOP and restoration of vision. Conjunctival dehiscence with graft melting over the GDI tube presented a major risk factor for endophthalmitis. Prompt surgical revision of an exposed tube is highly recommended to avoid ocular morbidity.
Bulbar myasthenia presenting as acute respiratory failure--a case report.
Ranganath H
Neurology India , 2000,
Treatment of trigeminal neuralgia : letter to editor.
Ranganath H
Neurology India , 2002,
Carbamazepine and weight gain.
Ranganath H
Neurology India , 2000,
Role of Trunk Rehabilitation on Trunk Control, Balance and Gait in Patients with Chronic Stroke: A Pre-Post Design  [PDF]
S. Karthikbabu, John M. Solomon, N. Manikandan, Bhamini K. Rao, M. Chakrapani, Akshatha Nayak
Neuroscience & Medicine (NM) , 2011, DOI: 10.4236/nm.2011.22009
Abstract: Purpose: Although proximal stability of the trunk is a prerequisite for balance and gait, to determine the role of trunk rehabilitation on trunk control, balance and gait in patients with chronic stroke is yet unknown. Method: Fifteen sub-jects (post-stroke duration (3.53 ± 2.98) years) who had the ability to walk 10 meters independently with or without a walking aid; scoring ≤ 21 on Trunk Impairment Scale (TIS), participated in a selective trunk muscle exercise regime, consisting of 45 minutes training per day, four days a week, and for four weeks duration in an outpatient stroke reha-bilitation centre. Results: The overall effect size index for trunk rehabilitation was 1.07. This study showed large effect size index for Trunk Impairment Scale (1.75), Berg Balance Scale (1.65) than for gait variables (0.65). After trunk rehabilitation, there was a significant improvement for gait speed (p= 0.015), cadence (p= 0.001) and gait symmetry (p=0.019) in patients with chronic stroke. In addition, all the spatial gait parameters had a significant change post-intervention. There was no significant change in temporal gait parameters with the exception of affected single limb support time. The level of significance was set at p < 0.05. Conclusion: The exercises consisted of selective trunk movement of the upper and the lower part of trunk had shown larger effect size index for trunk control and balance than for gait in patients with chronic stroke. Future randomized controlled studies incorporating large sample size would provide insight into the effectiveness and clinical relevance of this intervention.
Distribution of Geometrically Weighted Sum of Bernoulli Random Variables  [PDF]
Deepesh Bhati, Phazamile Kgosi, Ranganath Narayanacharya Rattihalli
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.211195
Abstract: A new class of distributions over (0,1) is obtained by considering geometrically weighted sum of independent identically distributed (i.i.d.) Bernoulli random variables. An expression for the distribution function (d.f.) is derived and some properties are established. This class of distributions includes U(0,1) distribution.
Isolation of Mycobacterium celatum from a Case of Koch’s Spine  [PDF]
Gayathri Devi, P. Ashok Kumar, R. Ranganath
Journal of Tuberculosis Research (JTR) , 2014, DOI: 10.4236/jtr.2014.21001
Abstract: Mycobacterium celatum is a newly discovered micro-organism causing disseminated infections in immuno compromised patients. Here we report a case of Mycobacterium celatum in an apparently immuno competent young patient with Koch’s spine, the organism was confirmed at tuberculosis research centre, Chennai. The patient was started with clarithromycin and ciprofloxin along with category-I ATT.
Situational Awareness Using DBSCAN in Smart-Grid  [PDF]
Ranganath Vallakati, Anupam Mukherjee, Prakash Ranganathan
Smart Grid and Renewable Energy (SGRE) , 2015, DOI: 10.4236/sgre.2015.65011
Abstract: Synchrophasors are the state-of-the-art measuring devices that sense various parameters such as voltage, current, frequency, and other grid parameters with a high sampling rate. This paper presents an approach to visualize and analyze the smart-grid data generated by synchrophasors using a visualization tool and density based clustering technique. A MATLAB based circle representation tool is utilized to visualize the real-time phasor data generated by a smart-grid model that mimics a synchrophasor. A density based clustering technique is also used to cluster the phasor data with the aim to detect contingency situations such as bad-data classification, various fault types, deviation on frequency, voltage or current values for better situational alertness. The paper uses data from an IEEE fourteen bus system test-bed modeled in MATLAB/SIMULINK to aid system operators in carrying various predictive analytics, and decisions.
Harmonic Reduction in Wind Power Generating System Using Shunt Active Filter with SPWM Technique  [PDF]
R. Zahira, A. Peer Fathima, Ranganath Muthu
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.74015
Abstract: Due to environmental conditions, the wind power generation is fluctuating in nature. This affects the electrical network interconnected with these systems. When the wind power generators are connected to the nonlinear loads, there is distortion in the waveform. These distortions should be within limits according to national and international guidelines framed for power quality. This paper presents a mitigation technique with a shunt active filter, which reduces harmonic distortion to the permitted limit. Sine pulse width modulation (SPWM) control scheme is used to control shunt active filter. This technique eliminates harmonic distortion and maintains unity power factor. The simulation for proposed method is carried out using MATLAB/SIMULINK and results are validated.
A Novel Flower Pollination Algorithm to Solve Load Frequency Control for a Hydro-Thermal Deregulated Power System  [PDF]
D. Lakshmi, A. Peer Fathima, Ranganath Muthu
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.74016
Abstract: Load frequency control plays a vital role in power system operation and control. LFC regulates the frequency of larger interconnected power systems and keeps the net interchange of power between the pool members at predetermined values for the corresponding changes in load demand. In this paper, the two-area, hydrothermal deregulated power system is considered with Redox Flow Batteries (RFB) in both the areas. RFB is an energy storage device, which converts electrical energy into chemical energy, that is used to meet the sudden requirement of real power load and hence very effective in reducing the peak shoots. With conventional proportional-integral (PI) controller, it is difficult to get the optimum solution. Hence, intelligent techniques are used to tune the PI controller of the LFC to improve the dynamic response. In the family of intelligent techniques, a recent nature inspired algorithm called the Flower Pollination Algorithm (FPA) gives the global minima solution. The optimal value of the controller is determined by minimizing the ISE. The results show that the proposed FPA tuned PI controller improves the dynamic response of the deregulated system faster than the PI controller for different cases. The simulation is implemented in MATLAB environment.
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