Preparation and characterization of silicon free bioactive glass by queching

Synthesis of bioactive glass that is a silicon free bioactive borate glass is achieved by the traditional method means by melt-casting. The glass was prepared by taking (40.9%) CaO-(34.9%) B2O3-(24.2%)BaO (BBCO) then by quick air quenching from 1250C to room temperature. XRD, DTA, and TGA studies are made to characterize the glass. Hydroxyapatite (HAp) or Ca10(PO4)6(HO)2 formation on the glass surface was tested by soaking the glass in K2HPO4 (0.25M with pH = 8.5) at 370C. Nanorods or bubbles of HAP are formed on the glass surface by soaking the glass for longer time. Fourier transform infrared spectroscopy (FTIR), scanning and election and high resolution transmission electron microscopic studies confirmed HAP formation

The Revival of Sree Sankara’s Hypothesis of Appearance and Reality: A Critical Analysis and Appraisal

The main foci of this paper are to delineate the distinction between appearance and reality in the light of Sree Sankara’s Advaita Philosophy and to look at how Sankara’s notion of appearance and reality is enjoying a contemporary revival, and it is important to try to develop an understanding of why this is so. The central theme of the notion of Sankara philosophy is that Brahman or the absolute spirit is the only reality and everything else is an illusory appearance of Brahman. The major essence of Sankara’s Philosophy can be expressed in the form of a half verse, ‘Brahma Satyam Jagat Mitya Jivo Brahmaiva Na apara' which means ‘Brahman is real the world is unreal and the so-called jiva nondifferent from Brahman'. In the current consciousness study, Sree Sankara’s notion of Brahman and Jagat is so conundrum in the material life of postmodern people. But it is inevitable to believe that Sree Sankara’s philosophy is not a conundrum for common people in contemporary society but the very conundrum for the non-common people

Higher accuracy protein Multiple Sequence Alignment by Stochastic Algorithm

Multiple Sequence Alignment gives insight into evolutionary, structural and functional relationships among the proteins. Here, a novel Protein Alignment by Stochastic Algorithm (PASA) is developed. Evolutionary operators of a genetic algorithm, namely, mutation and selection are utilized in combining the output of two most important sequence alignment programs and then developing an optimized new algorithm. Efficiency of protein alignments is evaluated in terms of Total Column score which is equal to the number of correctly aligned columns between a test alignment and the reference alignment divided by the total number of columns in the reference alignment. The PASA optimizer achieves, on an average, significant better alignment over the well known individual bioinformatics tools. This PASA is statistically the most accurate protein alignment method today. It can have potential applications in drug discovery processes in the biotechnology industry

Enhancement of superconducting correlation due to interlayer tunneling.

Interlayer single particle tunneling between the $Cu-O$ layers suppress the in-plane short range magnetic order (which is modeled as spin density wave (SDW) insulator). Doping over the SDW state kills perfect nesting of the Fermi surface (FS) in certain directions and hence SDW gap reduces to zero in those directions of the FS. Coupling between the planes through interlayer tunneling ($t_{\perp}$) further suppresses the in-plane magnetic SDW-gap and hence becomes anisotropic. Superconductivity arises in the gapless regions of the FS under the `modified spin bag' mechanism. We show that the highest $T_c$ can only be obtained for non-zero $t_{\perp}$ based on this mechanism.Comment: 17 pages, latex, 3 figures available on request

An effective Nuclear Model: from Nuclear Matter to Finite Nuclei

The momentum and density dependence of mean fields in symmetric and asymmetric nuclear matter are analysed using the simple density dependent finite range effective interaction containing a single Gaussian term alongwith the zero-range terms. Within the formalism developed, it is possible to reproduce the various diverging predictions on the momentum and density dependence of isovector part of the mean field in asymmetric matter. The finite nucleus calculation is formulated for the simple Gaussian interaction in the framework of quasilocal density functional theory. The prediction of energies and charge radii of the interaction for the spherical nuclei compares well with the results of other effective theories.Comment: 10 pages, 3 figures, 2 tables, To appear in the Proceedings of the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), May 27-June 1, 2012, San Antonio, Texas, US