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Search Results: 1 - 10 of 228 matches for " Seetharaman;Maharaj "
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Bariatric Surgery in the Caribbean: Is It Safe in a Low-Volume, Third World Setting?
Dilip Dan,Yardesh Singh,Vijay Naraynsingh,Seetharaman Hariharan,Ravi Maharaj,Surujpal Teelucksingh
Minimally Invasive Surgery , 2012, DOI: 10.1155/2012/427803
Abstract: Bariatric surgery is a well-recognized modality of management of obesity. In addition to obesity, it effectively controls diabetes mellitus, and hypertension. It has been recommended that bariatric surgery should be done in “designated centers” of excellence where there is a high volume of case turnover. Caribbean nations are not spared from the global spread of the obesity epidemic; however, not many patients get the benefits of bariatric surgery. This study aimed to establish that bariatric surgery could be safely and efficiently undertaken in a low-volume center outside the “designated centers” with comparable patient outcomes even in a third world setting. Though “patient numbers” generally imply better outcome, in an environment where these numbers cannot be achieved, patients should not be denied the access to surgery once good outcomes are achieved. 1. Introduction Obesity has reached epidemic levels in many countries around the world [1]. The prevalence of obesity has steadily increased over the years irrespective of demographic factors such as age, sex, race, ethnicity, or educational level [2]. It is also increasing rapidly in both industrialized and developing countries [3]. Worldwide, nearly 250 million people are obese, and the WHO has estimated that in 2025, 300 million people will be obese [4]. It is a well-known fact that obesity is associated with increased morbidity and mortality. There have been many published reports from several Caribbean nations such as Jamaica, Barbados, Trinidad & Tobago, and St. Lucia concerning the steady rise in the prevalence of obesity from primary school age through adolescence and adulthood [5–8]. A recent PAHO/WHO report suggests that more than half of the population in Trinidad & Tobago fall within the parameters of being either overweight or obese, which is indeed quite alarming [9]. The medical management of obesity has a poor track record, but bariatric surgery has demonstrated superior weight loss and dramatic improvement in comorbidities in the postoperative period. In the developed world, bariatric surgery is usually performed at designated centers of excellence on the basis that this leads to better outcomes. However, it is debatable if bariatric surgery should be limited to such high-volume centers [10]. In addition to control of obesity, bariatric surgery is also very effective in the management of diabetes mellitus and hypertension, which commonly afflicts this population. Since the prevalence of diabetes mellitus and hypertension is also very high in the Caribbean nations, it may well be
Extrauterine leiomyomata presenting with sepsis requiring hemicolectomy
Dan, Dilip;Harnanan, Dave;Hariharan, Seetharaman;Maharaj, Ravi;Hosein, Ian;Naraynsingh, Vijay;
Revista Brasileira de Ginecologia e Obstetrícia , 2012, DOI: 10.1590/S0100-72032012000600008
Abstract: extrauterine leiomyomas are rare, benign, and may arise in any anatomic sites. their unusual growth pattern may even mimic malignancy and can result in a clinical dilemma. occasionally, uterine leiomyomas become adherent to surrounding structures. they also develop an auxiliary blood supply, and lose their original attachment to the uterus, thus becoming 'parasitic'. parasitic myomas may also be iatrogenically created after uterine fibroid surgery, particularly if morcellation is used. this report presented two cases of parasitic myomas with sepsis, both requiring right hemicolectomy. it reviewed the pertinent literature.
Near-Lossless Compression Based on a Full Range Gaussian Markov Random Field Model for 2D Monochrome Images  [PDF]
K. Seetharaman, V. Rekha
Journal of Signal and Information Processing (JSIP) , 2013, DOI: 10.4236/jsip.2013.41002

This paper proposes a Full Range Gaussian Markov Random Field (FRGMRF) model for monochrome image compression, where images are assumed to be Gaussian Markov Random Field. The parameters of the model are estimated based on Bayesian approach. The advantage of the proposed model is that it adapts itself according to the nature of the data (image) because it has infinite structure with a finite number of parameters, and so completely avoids the problem of order determination. The proposed model is fitted to reconstruct the image with the use of estimated parameters and seed values. The residual image is computed from the original and the reconstructed images. The proposed FRGMRF model is redefined as an error model to compress the residual image to obtain better quality of the reconstructed image. The parameters of the error model are estimated by employing the Metropolis-Hastings (M-H) algorithm. Then, the error model is fitted to reconstruct the compressed residual image. The Arithmetic coding is employed on seed values, average of the residuals and the model coefficients of both the input and residual images to achieve higher compression ratio. Different types of textured and structured images are considered for experiment to illustrate the efficiency of the proposed model. The results obtained by the FRGMRF model are compared to the JPEG2000. The proposed approach yields higher compression ratio than the JPEG whereas it produces Peak Signal to Noise Ratio (PSNR) with little higher than the JPEG, which is negligible.

Regression Testing in Developer Environment for Absence of Code Coverage  [PDF]
M. Thillaikarasi, K. Seetharaman
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.78057

The techniques of test case prioritization schedule the execution order of test cases to attain respective target, such as enhanced level of forecasting the fault. The requirement of the prioritization can be viewed as the en-route for deriving an order of relation on a given set of test cases which results from regression testing. Alteration of programs between the versions can cause more test cases which may respond differently to following versions of software. In this, a fixed approach to prioritizing test cases avoids the preceding drawbacks. The JUnit test case prioritization techniques operating in the absence of coverage information, differs from existing dynamic coverage-based test case prioritization techniques. Further, the prioritization test cases relying on coverage information were projected from fixed structures relatively other than gathered instrumentation and execution.

Statistical Tests of Hypothesis Based Color Image Retrieval  [PDF]
K. Seetharaman, S. Selvaraj
Journal of Data Analysis and Information Processing (JDAIP) , 2016, DOI: 10.4236/jdaip.2016.42008
Abstract: This paper proposes a novel method based on statistical tests of hypotheses, such as F-ratio and Welch’s t-tests. The input query image is examined whether it is a textured or structured. If it is structured, the shapes are segregated into various regions according to its nature; otherwise, it is treated as textured image and considered the entire image as it is for the experiment. The aforesaid tests are applied regions-wise. First, the F-ratio test is applied, if the images pass the test, then it is proceeded to test the spectrum of energy, i.e. means of the two images. If the images pass both tests, then it is concluded that the two images are the same or similar. Otherwise, they differ. Since the proposed system is distribution-based, it is invariant for rotation and scaling. Also, the system facilitates the user to fix the number of images to be retrieved, because the user can fix the level of significance according to their requirements. These are the main advantages of the proposed system.
An Innovative Low Cost EM Pollution Measurement System  [PDF]
R. Sittalatchoumy, R. Seetharaman
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.78176
Abstract: Mobile phones and other electronic devices are emitting radiations that will provide harmful effects to the human health. In order to measure the radiation, an innovative low cost measurement system is proposed in this paper. The ideology is to simplify the circuit’s value by converting a voltage detecting circuit to a field detecting circuit by finding an optimum resistance on trial and error basis. The requirement for a trial and error technique is to not allow too high or too low resistance which can be either short or open, resulting provides more damage to the circuit.
A Cluster Based QoS-Aware Service Discovery Architecture Using Swarm Intelligence  [PDF]
E. Christopher Siddarth, K. Seetharaman
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.52018

The existing mobile service discovery approaches do not completely address the issues of service selection and the robustness faced to mobility. The infrastructure of mobile service must be QoS-aware plus context-aware (i.e.) aware of the user’s required-QoS and the QoS offered by the other networks in user’s context. In this paper, we propose a cluster based QoS-aware service discovery architecture using swarm intelligence. Initially, in this architecture, the client sends a service request together with its required QoS parameters like power, distance, CPU speed etc. to its source cluster head. Swarm intelligence is used to establish the intra and inter cluster shortest path routing. Each cluster head searches the QoS aware server with matching QoS constraints by means of a service table and a server table. The QoS aware server is selected to process the service request and to send the reply back to the client. By simulation results, we show that the proposed architecture can attain a good success rate with reduced delay and energy consumption, since it satisfies the QoS constraints.

A Case of Endometriosis in the Abdominal Wall Post Caesarean Section  [PDF]
Emerson Budhoo, Dale Maharaj
Surgical Science (SS) , 2013, DOI: 10.4236/ss.2013.42023

We report the case of a 33 year old female who presented with endometriosis of the anterior abdominal wall following Caesarean Section at the surgical incision site. Abdominal Incisional Site Endometriosis can pose a diagnostic dilema owing to its relative rarity and vagueosity of symptoms, vis-a-vis, cyclical abdominal pain and occasional palpable mass associated with menstruation. A greater index of suspicion should be prompted in such patients especially if symptoms occur following pelvic surgery such as Caesarean Sections, hysterotomy, and myomectomy.

Approximate analytical solution of non-linear reaction diffusion equation in fluidized bed biofilm reactor  [PDF]
Seetharaman Usha, Shanmugarajan Anitha, Lakshmanan Rajendran
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.412127
Abstract: A mathematical model for the fluidized bed biofilm reactor (FBBR) is discussed. An approximate analytical solution of concentration of phenol is obtained using modified Adomian decomposition method (MADM). The main objective is to propose an analytical method of solution, which do not require small parameters and avoid linearization and physically unrealistic assumptions. Theoretical results obtained can be used to predict the biofilm density of a single bioparticle. Satisfactory agreement is obtained in the comparison of approximate analytical solution and numerical simulation.
FPGA Implementation of Non-Linear Cryptography  [PDF]
Thammampatti Natarajan Prabakar, Balasubramanian Lakshmi, Gopalakrishnan Seetharaman
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.78109
Abstract: The paper focuses on the design and Field Programmable Gate Array (FPGA) implementation of embedded system for time based dual encryption scheme with Delay Compulsion Function (DCF) and also illustrates the application of DCF in time based cryptography. Further, the strength of the time based FPGA encryption algorithm with and without using DCF is analyzed using a Nios II processor. This proposed scheme enhances the security of vital data against Brute force attack by incorporating a temporal key distribution where two different keys encrypt the data simultaneously, one being the regular key and the other being the time. The time is included using a dynamically varying number of shifts thereby allowing the system to wait for the duration and this forms the second dimension of the key. Presently, available encryption systems suffer from Brute Force attack in which all the key combinations are tried in order to find the correct key. In such a case, the time taken for breaking the key depends on the speed of the system used for cryptanalysis. The proposed system adds complexity by using dynamically varying sequence of operations, by including the time as a second dimension of the key besides minimizing the possibility of Brute Force attack and increasing the time required for cryptanalysis irrespective of the system capability. As the proposed system needs concurrent execution and real time processing, the system is implemented using Altera Stratix II FPGA and the results are presented.
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