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Search Results: 1 - 10 of 812 matches for " Anjana Ramachandran "
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Exchange Rate Market Sentiment Analysis of Major Global Currencies  [PDF]
K. S. Madhava Rao, Anjana Ramachandran
Open Journal of Statistics (OJS) , 2014, DOI: 10.4236/ojs.2014.41006
Abstract:

The paper deals with the analysis of market sentiments in exchange rates which are of great interest to trading individuals and institutional investors. For example, an institutional investor or a trading individual makes better investments and minimizes losses when equipped with an understanding of market sentiments in weekly or monthly exchange returns. In the approach suggested here, a typical market sentiment is defined on the basis of the certain function of the mean and the standard error of the logarithm of the ratio of successive daily exchange rates. Based on this surmise, the market sentiments are classified into various states, whereby states are defined according to the perceptions of the market player. A multinomial probability model is built to capture the uncertainties in market sentiments. Two asymptotically distribution-free tests, namely the chi-square and the likelihood ratio test of goodness of fit for the hypothesis of the symmetry in market sentiments are suggested. Two different measures of market sentiments are proposed. The approach advocated here will be of interest to researchers, exchange rate traders and financial analysts. As an application of the proposed line of approach, we analyze weekly market sentiments that govern exchange rates of the major global currenciesEUR, GBP, SDR, YEN, ZAR, USD, data from 2001-2012. Some interesting conclusions are revealed based on the data analysis.

A Review on Online Social Network: Issues & Challenges  [PDF]
Rahul Nema, Anjana Pandey
Social Networking (SN) , 2016, DOI: 10.4236/sn.2016.52006
Abstract: The Usage of Online social network is increasing day by day where a large number of users publicly access their friend’s link and post any message on the wall. OSN enables different user’s to use the services with a security of using these messages on the user’s wall. Hence various techniques are implemented for the filtering of these wall messages, but there are still various issues and challenges found during the usage of these techniques used in OSN. Here in this paper various issues and challenges from various techniques are discussed and hence on the basis of various issues a new and efficient technique is implemented in future.
Guidelines Based Software Engineering for Developing Software Components  [PDF]
Muthu Ramachandran
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.51001
Abstract: Software guidelines have been with us in many forms within Software Engineering community such as knowledge, experiences, domain expertise, laws, software design principles, rules, design heuristics, hypothesis, experimental results, programming rules, best practices, observations, skills, algorithms have played major role in software development. This paper presents a new discipline known as Guidelines Based Software Engineering where the aim is to learn from well-known best practices and documenting newly developed and successful best practices as a knowledge based (could be part of the overall KM strategies) when developing software systems across the life cycle. Thereby it allows reuse of knowledge and experiences.
Left Atrial Myxoma—A Case Report  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.51002
Abstract: Atrial myxomas are the most common primary cardiac tumors. More than 90% are solitary. A large myxoma occupying in the left atrium producing mitral stenosis and regurgitation was demonstrated by 2D echocardiographic images in this case. It remained asymptomatic for a long period with a survival up to the age of 75 years in an elderly female.
Apical Right Ventricular Hypertrophic Cardiomyopathy—A Case Report  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.52010
Abstract: A relatively infrequent form of hypertrophic cardiomyopathy is the isolated apical variant and it is more common in oriental people, especially in the Japanese. It contributes 25% of cases of hypertrophic cardiomyopathy in Japan but only 1% to 2% in the non-Japanese population. It may occasionally present in the elderly and classically involve the apex of the left ventricle. An isolated apical right ventricular involvement had been detected in an elderly female by transthoracic two-dimensional echocardiographic imaging.
Right Atrial Myxoma—A Case Report  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.53013
Abstract: Myxomas comprise 6% to 10% of primary cardiac tumors in childhood. Less than 10% of patients with cardiac myxomas are under 15 years of age. A large myxoma occupying in the right atrium and prolapsing into the right ventricle, pulmonary artery and producing tricuspid and pulmonary valve obstructions was diagnosed by Transthoracic 2D echocardiographic imaging in a 12-year-old male child.
Left Ventricular Myxoma—A Case Report  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.53016
Abstract: Left ventricular myxomas are extremely rare and account for 2.5% of all cardiac myxoma cases. A left ventricular myxoma originating from the apical interventricular septum and projecting into the left ventricular cavity was diagnosed by Transthoracic two-dimensional echocardiographic imaging in a 29-year-old male. The presentation of myxoma with symptoms masquerading as infectious hepatitis and dilated cardiomyopathy with a measured ejection fraction of 20% has been described.
Left Ventricular “Horseshoe-Thrombus”—A Case Report  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.54026
Abstract: Thrombi represent the most frequently found intracardiac masses. Left ventricular thrombus (LVT) is an important complication in patients with ischemic heart diseases and in those with dilated cardiomyopathy and systolic heart failure. The diagnosis of left ventricular thrombus remains important since anticoagulation will reduce the risk of systemic embolization and stroke. Despite advances in other imaging modalities, echocardiography remains the most important tool for diagnosis and risk stratification in patients predisposed to develop left ventricular thrombi. Mural thrombi formed on the left ventricular endocardium and horseshoe-shaped in chronic dilated cardiomyopathy, masquerading as left ventricular endomyocardial fibrosis was diagnosed by transthoracic 2D echocardiographic imaging in a 38 years old middle aged man. Background of this case highlighted the pathophysiology, high risk echocardiographic features and the role of anticoagulant therapy in LV thrombus with dilated cardiomyopathy.
Right Ventricular Myxoma—A Case Report  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.54030
Abstract: From an epidemiologic perspective, cardiac myxomas are best divided into the following 2 categories: those that arise in isolation and those that arise in the setting of a syndrome (so called Carney Complex). The former account for about 90% - 95% of cases, while the later account for a minority of cases and those arise from the right or left ventricle constitute as 3% each. Real-time two-dimensional echocardiography has proved to be extremely useful in defining intracavitary masses. With two-dimensional echocardiography accurate visualization of the right ventricular body and outflow tract can be accomplished consistently. The acoustic nature and anterior location of the right ventricular myxomas make them appear as bright, mobile masses. The mobile nature of the tumor can easily be appreciated and its point of attachment, or stalk can be visualized accurately. Background of this case illustrates the transthoracic 2D echocardiographic pattern of right ventricular myxoma and its attachment by a pedicle to the anterior papillary muscle, masquerading as ball-valve thrombus and cardiac “stone” in tilted parasternal long axis-3 chamber views in a 15-year-old girl. Mahaim criteria to distinguish myxoma from organizing thrombus had been highlighted.
Endomyocardial Fibrosis: Echocardiographic Profile  [PDF]
Ramachandran Muthiah
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.55034
Abstract: Evolution of two-dimensional and color Doppler echocardiography identified the typical features of Endomyocardial Fibrosis (EMF) such as dense ventricular apical fibrosis, dysfunction of atrioventricular valve and sub-valvular apparatus and cavity dimensions. This is the tool used most for the diagnosis of EMF in areas where the disease is endemic in Africa. Today echocardiography is used as a screening tool to identify cases of EMF at the community level and it could be confirmed at the bed side. Background of these cases highlighted the echocardiographic features of EMF in different age groups and the oldest one reported at the age of 85 years in a female in advanced stage at this coastal district of Thoothukudi in India.
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