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Surendran S.,Bharathiar University | Krishnamoorthy V.,Bharathi Womens College Autonomous
International Journal of Pharma and Bio Sciences | Year: 2014

The present study evaluated the effect of ethanolic extracts of Cyamopsis tetragonolobus rhizomes and Cyperus rotundus pods on the biochemical parameters of diabetic cataract induced Wistar albino rats. Healthy rats were grouped into 4: Group I - Normal, Group II - Diabetic cataract induced animals (STZ-induced diabetic rats which developed cataract), Group III - Cyamopsis tetragonolobus extract co-treated animals and Group IV - Cyperus rotundus extract co-treated animals (Treatment for 19 weeks after STZ induction). Body weight and organ weight of cataract animals decreased while plant treatment prevented this loss. Increase in values of glucose, glycated haemoglobin, insulin, creatinine, urea and uric acid levels were observed in diabetic cataract induced rats, while plant co-treated groups restored these levels. The changes in lipid and protein profile in Group II rats were prevented by the plant treatment. SGOT, SGPT, ALP and LDH increased in Group II but plant treatment retained enzymatic activities. The results signify the plant's protective nature. Source


Manimegalai D.K.,Bharathi Womens College Autonomous | Manikandan A.,Presidency College at Chennai | Moortheswaran S.,Presidency College at Chennai | Antony S.A.,Presidency College at Chennai
Journal of Superconductivity and Novel Magnetism | Year: 2015

In this article, undoped and Mn-doped ZnS (MnxZn1−xS; x = 0.0, 0.3, and 0.5) nano photocatalysts were synthesized successfully by a facile microwave combustion method. Powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), energy dispersive X-ray (EDX), and selected area electron diffraction (SAED) patterns revealed the presence of material in well-crystalline single phase with average crystallite size of about 12 nm and the material remained cubic over the whole MnxZn1−xS solid solution range. Formation of ultrafine, spherical, and homogeneous dispersed nanoparticles (NPs) with size 14 nm was confirmed by high-resolution scanning electron microscopy (HR-SEM) and high-resolution transmission electron microscopy (HR-TEM) analyses. Vibrating sample magnetometer (VSM) results confirmed a weak superparamagnetic behavior of MnxZn1−xS nanocrystals, and the values of magnetization (Ms) gradually increased with increasing the concentration of Mn2+ cations, due to the higher magnetic moment of Mn2+ ions (5 μB) replaced the nonmagnetic nature of Zn2+ ions (0 μB) in ZnS. The band gap of the samples was increased with increasing the concentration of Mn2+ ions, due to decrease in the particle size. The room temperature photoluminescence (PL) spectra of Mn2+-doped ZnS NPs showed extra peaks in yellow–orange and red region in comparison of undoped ZnS NPs. Mn2+-induced PL spectra was suggested with the significant enhancement of the PL intensity in MnxZn1−xS NPs, due to Mn2+ incorporation. The present study leads to enhance the photocatalytic activity of MnxZn1−xS NPs, and TiO2 catalyst was added. As expected, MnxZn1−xS NP-sensitized TiO2 catalyst showed enhanced photocatalytic degradation (PCD) of 4-chlorophenol (4-CP) under visible light irradiation. The alteration of MnxZn1−xS–TiO2 nanocomposites (NCs) catalysts show higher adsorption with synergistic effect and enhanced the separation of photogenerated electron–hole pairs, important to higher PCD efficiency. © 2015, Springer Science+Business Media New York. Source


Janaki K.,Bharathi Womens College Autonomous | Radhakrishnan N.,Anna University
International Review on Computers and Software | Year: 2013

It offers, indeed, immense challenges to assess clearly the exact variance of the optimal solutions with the recent remedies, when we set out to study the locations of modern hospitals in the context of the perplexing state of affairs and the intricate decisive factors prevalent in the current scenario. In order to do so, we first identify the main classes of criteria used in location planning. In the existing hospital location analysis technique a non linear mathematical model is developed to find the highly sensitive roads. But this method has such a drawback that the obtained optimal weights are not generally distributed. To overcome this, a new expert system developed for hospital location analysis with optimization method is presented. In our proposed technique, a new expert system is developed based on the Radial Basis Function (RBF). In the RBF the weights are optimized by using the well renowned optimization technique Adaptive Artificial Bee Colony (AABC) Algorithm. After that, the different length pattern values are mined and locations are computed by using the pattern mining and clustering techniques. Thus our proposed technique performance is analyzed by using the hospital location dataset and compared with the exiting hospital locations analysis techniques and optimizations methods PSO and Conventional ABC. © 2013 Praise Worthy Prize S.r.l. - All rights reserved. Source


Megala J.,Vels University | Geetha A.,Bharathi Womens College Autonomous
Food Chemistry | Year: 2010

The free radical-scavenging property and the inhibitory action on H+, K+-ATPase activity of aqueous (AEPD) and hydroalcoholic (HAEPD) fruit extracts of Pithecellobium dulce (PD) were screened in various in vitro models. HAEPD showed the greatest free radical-scavenging activity in all the experimental models. Further, HAEPD has shown a potent H+, K+-ATPase inhibitory activity and comparable to that of Omeprazole, the antiulcer drug. HPLC chromatogram of HAEPD was found to contain rich quantity of phenolic compounds and revealed the presence of flavonoids - quercitrin, rutin, kaempferol, naringin, daidzein. Thus HAEPD was found to possess a good antioxidant capacity when compared to AEPD. The study indicates that PD can be screened for antiulcer activity, since overexpression of H+, K+-ATPase results in gastric ulceration. So the free radical-scavenging and antiacid secretory activities of PD may be claimed for its traditional consumption for gastric complications. © 2010 Elsevier Ltd. All rights reserved. Source


Manimekalai K.,Bharathi Womens College Autonomous | Baskar Babujee J.,Anna University | Thirusangu K.,SIVET College
European Journal of Scientific Research | Year: 2012

A graph G(V, E) is said to be k-sequentially additive if there is a bijection f : V ∪ E → {k, k+1, ∪, k+|V ∪ E|-1} such that for each uv ε E, f(uv) = f(u) + f(v). If k =1, then G(V, E) is said to be 1-sequentially additive graph or a simply sequentially additive graph or briefly, an SSA-graph. In this paper we prove the existence of SSA-labeling for the graphs P2n (+) Nm, (P2 ∪ mK1) + N 2, the Y-tree Ym+1, (m, 1)-kite and (m, 2)-kite for m ° 1 or 2 (mod 3), corona Cm nK1 for m = 3, 4 and B(r,s,n-1) for rs even, K3 ∪ K1,n-2, and rK m,n-2 ∪ K1,s ∪ K1,t with certain conditions, and k-sequentially additive labeling for the one point union of K3 with the central vertex of K1,n-2 and the union of some sequentially additive disconnected graphs. © 2012 EuroJournals Publishing, Inc. Source

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