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Batticaloa, Sri Lanka

The Eastern University, Sri Lanka is a public university in Vantharumoolai, Eastern Province, Sri Lanka. It was established on 1 October 1986. The university was preceded by the Batticaloa University College established on 1 August 1981 which was started in the buildings of the Vantharumoolai Madya Maha Vidyalayam.At present, the Eastern University, Sri Lanka has a main campus at Vantharumoolai, another campusTrincomalee Campus at Trincomalee and an the Swami Vipulananda Institute of Aesthetic Studies at Kalladi with the facilities of Library Network, Centre for Information and Communication Technology and Sports.Like all public universities in Sri Lanka, it receives the bulk of its funding from the University Grants Commission which is a part of the Ministry of Higher Education in Colombo. Therefore the UGC and the central government exert a great deal of control over EUSL. Wikipedia.

Koneswaran M.,Eastern University of Sri Lanka | Narayanaswamy R.,University of Manchester
Sensors and Actuators, B: Chemical | Year: 2015

A simple and sensitive method for the determination of vitamin B6 was developed based on the fluorescence quenching of l-cysteine capped CdS/ZnS quantum dots (QDs). The synthesised QDs were characterised using UV-vis absorption spectroscopy, fluorescence spectroscopy, FT-IR spectroscopy and transmission electron microscopy. The influence factors on the determination of vitamin B6 were investigated and the optimum conditions were determined. Under optimum conditions, the fluorescence intensity of l-cysteine capped CdS/ZnS QDs was linearly proportional to vitamin B6 over a concentration range from 0.05 mg L-1 to 6.5 mg L-1 with a correlation coefficient of 0.9946. The detection limit of this system was 0.015 mg L-1. The quenching mechanism was studied using the UV-vis absorption and fluorescence spectroscopy. The fluorescence of these core-shell QDs is quenched effectively by the vitamin B6 without obvious shift in maximum photoluminescence wavelength. Similarly, there is no obvious shift observed in the absorption spectra of l-cysteine capped CdS/ZnS QDs before and after adding the different concentrations of vitamin B6. This confirmed that quenching phenomenon in this system is possibly attributed to the effective electron transfer from QDs to vitamin B6. The proposed method was employed to detect vitamin B6 in the pharmaceutical sample with satisfactory results. © 2015 Elsevier B.V. All rights reserved. Source

Seran T.H.,Eastern University of Sri Lanka
Pakistan Journal of Biological Sciences | Year: 2013

Ginger (Zingiber officinale Rosc.) is a perennial herb. It belongs to the family Zingiberaceae and commercially cultivated in most tropical regions of the world. The underground rhizomes are the planting materials in a conventional propagation of ginger however it has a low multiplication rate. It is known that there are possible methods are available for rapid vegetative propagation of ginger through direct organogenesis or somatic embryogenesis under in vitro conditions but it is necessary to find the best protocol for in vitro multiplication of ginger. Limited studies on the tissue culture technology of ginger are available in Sri Lanka. However, significant efforts have been made in the procedure for in vitro micropropagation in the other ginger growing countries. The available literature with respect to in vitro plant regeneration has been perused and this review mainly focused on the in vitro propagation via direct organogenesis from rhizome buds or shoot tips of ginger often used as explants. This review article may be an appropriate and effective guidance for establishing in vitro cultures and subsequent production of in vitro plantlets in clonal propagation of ginger. © 2013 Asian Network for Scientific Information. Source

Ragel F.C.,Eastern University of Sri Lanka
Pramana - Journal of Physics | Year: 2012

We study static spherically symmetric spacetime to describe compact objects with anisotropic matter distribution. We express the system of Einstein field equations as a new system of differential equations using a coordinate transformation, and then write the system in another form with polytropic equation of state and obtain two classes of exact models. The models satisfy all major physical features expected in a realistic star. For polytropic index n = 2, we obtain expressions for mass and density which are comparable with the reported experimental observations. © Indian Academy of Sciences. Source

Johnpillai A.G.,Eastern University of Sri Lanka | Yildirim A.,Ege University | Yildirim A.,University of South Florida | Biswas A.,Ege University | Biswas A.,Delaware State University
Romanian Reports of Physics | Year: 2012

We study the chiral nonlinear Schrödinger's equation with Bohm potential by analyzing an equivalent system of nonlinear partial differential equations from the Lie symmetry point of view. These system of equations are obtained by decomposing the underlying equation into real and imaginary components. The Lie point symmetry generators of the system of equations with respect to zero and non zero values of the coefficient of the Bohm potential are obtained. The optimal system of one-dimensional subalgebras of the Lie symmetry algebra of the system in each of the two cases are used to reduce the system of equations to a system of nonlinear first and second-order ordinary differential equations. Exact group-invariant solutions to the system of equations are constructed from the reduced system of ordinary differential equations. Source

Sithambaresan M.,Eastern University of Sri Lanka | Kurup M.R.P.,Cochin University of Science and Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The title compound, C16H17N3O3, exists in the E configuration with respect to the azomethine double bond. The molecule is close to planar, with a dihedral angle of 6.7 (1)° between the aromatic rings. The phenolic O atom functions as donor and acceptor by forming intramolec-ular O - H⋯O and inter-molecular N - H⋯O hydrogen bonds, respectively. Two-dimensional packing is fashioned through an inter-molecular hydrogen bonding network in an offset manner. © Sithambaresan and Kurup 2011. Source

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