Faculty of Science: Recent submissions

Now showing items 461-480 of 655

The Application of Photocatalytic Oxidation in Removing Pentachlorophenol from Contaminated Water

Ho, D.P.; Senthilnanthan, M.; Mohammad, J. A.; Vigneswaran, S.; Ngo, H. H.; Mahinthakumar, G.; Kandasamy, J. (Science and Technology Network Inc., 2010-01-31)

The degradation of sodium salt of pentachlorophenol (PCPS) by photocatalysis with titanium dioxide (TiO2) as the catalyst was investigated. The residual PCPS after photo-degradation was analyzed by high performance liquid ...
Visible light responsive ruthenium-doped titanium dioxide for the removal of metsulfuron-methyl herbcide in aqueous phase

Senthilnanthan, M.; Ho, D.P.; Vigneswaran, S.; Ngo, H.H.; Shon, H.K. (Elsevier, 2010-11-20)

Titanium dioxide (TiO2) under UV light irradiation is one of the effective treatment methods to reduce the concentration of synthetic organic compounds in water. Nevertheless, only a small amount of UV light is absorbed ...
Electrochemical impedance and X-ray photoelectron spectroscopic analysis of dye-sensitized liquid electrolyte based SnO2/ZnO solar cell

Kumara, G.R.R.A.; murakami, K.; Shimomura, M.; Velauthamurthy, S.; Premalal, E.V.A.; Rajapakse, R.M.G.; Bandara, H.M.N (Elsevier, 2010-09-05)

A dye-sensitized solar cell based on interconnected SnO2 nanoparticle matrix covered with a thin outer shell of ZnO, N719 dye, I−/I3− in acetonitrile liquid electrolyte system and lightly platinized FTO counter electrode ...
Synthesis and characterization of monomeric and polymeric Pd(II) and Pt(II) complexes of 3,4-ethylenedioxythiophene-functionalized phosphine ligands

Velauthamurty, K.; Higgins, S.; Rajapakse, R.M.G.; Bacsa, J.; Zalinge, H.; Nichols, R.J.; Haiss, W. (Royal Society of Chemistry, 2009)

Phosphine ligands bearing 3,4-ethylenedioxythiophene (EDOT) groups, in which a Ph2P group is either connected directly to the thiophene ring [Ph2P(5–EDOT), 1] or to the EDOT ethylenebridge via a methylene (4) or longer (7) ...
Preparation and characterization of electronically conducting polypyrrole-montmorillonite nanocomposite and its potential application as a cathode material for oxygen reduction

Rajapakse, R.M.G.; murakami, K.; Bandara, H.M.N; Rajapakse, R.M.M.Y.; Velauthamurti, K.; Wijeratne, S. (Pergamon, 2010-02-28)

Simple wet chemical processes were deployed to prepare low-cost conducting nanocomposites based on natural clays with 2:1 layered structures such as sodium montmorillonite (MMT). Ce(IV) modified MMT was used for the ...
Interactions between the budding yeast IQGAP homologue Iqg1p and its targets revealed by a split-EGFP bimolecular fluorescence complementation assay

Pathmanathan, S.; Barnard, E.; Timson, D.J (No longer published by Elsevier, 2008-10-31)

. A split-EGFP based bimolecular fluorescence complementation (BiFC) assay has been used to detect interactions between the Saccharomyces cerevisiae cytoskeletal scaffolding protein Iqg1p and three targets: myosin essential ...
The interaction of IQGAPs with calmodulin-like Proteins

Pathmanathan, S.; Hamilton, E.; Atcheson, E.; David, J.; Timson. (2014-04-01)

Since their identiﬁcation over 15 years ago, the IQGAP (IQ-motif-containing GTPase-activating protein) family of proteins have been implicated in a wide range of cellular processes, including cytoskeletal reorganization, cell–cell ...
IQ motif selectivity in human IQGAP1: binding of myosin essential light chain and S100B

Pathmanathan, S.; Elliott, S.F.; Swiggen, M.C; Greer, B.; Harriott, P.; Irvine, G.B; Timson, D.J (Springer US, 2008-11-01)

IQGAPs are cytoskeletal scaffolding proteins which link signalling pathways to the reorganisation of actin and microtubules. Human IQGAP1 has four IQ motifs each of which binds to calmodulin. The same region has been ...
Reproductive Characteristics of Doublespotted Queenfish, Scomberoides Lysan (Actinopterygii: Perciformes: Carangidae), from Sri Lankan Waters: Implications for Fisheries Management

Thulasitha; William, S.; Sivashanthini, K. (Acta Ichthyologica et Piscatoria, 2013)

The doublespotted queenfish, Scomberoides lysan (Forsskål, 1775), is one of the most important and highly priced food fishes popular for dry fish production in Sri Lanka. Knowledge of spawning pattern and season are important ...
Impact of post - tsunami rehabilitation activities on selective fishing in the Northern coast of Jaffna peninsula

Kugathas, S.; Sivatharshan, Y.; Sivashanthini, K. (2013-12-09)

A questionnaire based survey was eonducted in May 2006, among the Tsunami affected fishermen of'Northern Jaffna peninsula, in order to assess the fishing effort after Tsunami rehabilitation activities.4337 families along ...
Population dynamics of Gerres abbreviatus Bleeker, 1850 from the Parangipettai waters, Southeast coast of India

Kuganathan, S. (SLAFAR, 2006)

The population dynamics of Gerres abbreviatus from the Parangipettai waters, Southeast coast of India was investigated based on length frequency data, using FiSAT software. Growth parameters ofG. abbreviatus were estimated ...
Current Status of Marine Snakes from Jaffna Peninsula, Sri Lanka with Description of Hitherto Unrecorded Hydrophis fasciatus fasciatus (Schneider, 1799) [2008]

Abyerami, S.; Sivashanthini, K. (2008)

As only a few study reported on sea snakes of Sri Lanka, a study was undertaken from June 2003 to November 2004 in the coast of Jaffna Peninsula which lies in the Northern part of Sri Lanka. Out of the 121 specimens examined, ...
Length-Weight Relationships and Condition of Gerreids (Pisces: Gerreidae) from the Parangipettai Waters (SE coast of India)

Sivashanthini, K. (2008)

The parameters of length-weight relationships were obtained for male, female and unsexed Gerres filamentosus and G. abbreviatus from the Parangipettai waters (SE coast of India). Covariance analysis for length–weight ...
Proximate Composition of Three Species of Scomberoides Fish from Sri Lankan Waters [2011]

Sivashanthini, K.; Sutharshiny, S. (2011)

Evaluating the proximate composition of food fish is the most important aspect in fish nutrition. The present study was carried out to determine the flesh quality of Scomberoides lysan, S. tol and S. commersonianus fish ...
Phase Space Stability Error Control with Variable Time-stepping Runge-Kutta Methods for Dynamical Systems

Humphries, T.; Vigneswaran, R. (Wiley, 2004-12)

We consider a phase space stability error control for numerical simulation of dynamical systems. We illustrate how variable time-stepping algorithms perform poorly for long time computations which pass close to a fixed ...
Improving Rates of Convergence of Iterative Schemes for Implicit Runge-Kutta Methods

Vigneswaran, R. (Springer-Verlag, 1993-06-13)

Various iterative schemes have been proposed to solve the non-linear equations arising in the implementation of implicit Runge-Kutta methods. In one scheme, when applied to an s-stage Runge-Kutta method, each step of the ...
ANTIBACTERIAL ACTIVITY AND PHYTOCHEMICAL ANALYSIS OF DIFFERENT SOLVENT EXTRACTS OF VARIOUS PARTS OF VITEX NEGUNDO L OBTAINED BY SEQUENTIAL EXTRACTION METHOD

Jeyaseelan, E.C.; Pathmanathan, M.K.; Jeyadevan, J.P. (Inventi Journals (P) Ltd, 2010-06-15)

Plants are the reservoir of wide range of bioactive compounds, which can be used for the treatment of various ailments in human. Therefore, screening of plant extracts for the discovery of novel bioactive compounds is found ...
Physicochemical Analysis of Pond Water Samples from Selected Areas in Valukkai Aru Drainage Channel, Jaffna, Sri Lanka

Ganeshalingam, S.; Jeyadevan, J. P.; Kuganathan, N. (ISSN, 2012)

In this paper, chemical and physical characters are analysed using standard procedures for the pond water samples collected from four ponds in Valukkai Aru, Jaffna, Sri Lanka. Properties of pond water evaluated in this ...
Control of Plant Pathogenic Fungi using Organic Solvent Extracts of Leaf, Flower and Fruit of Lawsonia inermis L.

Jeyaseelan, E.C.; Vinuja, P.; Pathmanathan, K.; Jeyadevan, J.P. (International Journal of Pharmaceutical & Biological Archives, 2012-08-22)

In this study leaf, flower and fruit of Lawsonia inermis L. Powders were sequentially extracted with DCM, ethyl acetate and ethanol solvents. The dried extracts were tested for their antifungal activity against Aspergillus ...
UV decomposable molecules and a photopatternable monomolecular film formed therefrom

Fukushima, H.; Takiguchi, H.; Shimoda, T.; Masuda, T.; Richard, J.B; Evans, S.; Jeyadevan, J.P; Critchley, K. (Bentham Science Publishers, 2009-01-20)

Aspects of the invention provide a method of controlling the solid-state property of the solid-phase surface or controlling forming reactive region. The method can be attained by using a device for ejecting droplets and a ...

Now showing items 461-480 of 655

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