We study the ground state properties of the one-dimensional t-J model using the Density Matrix Renormalization Group (DMRG), obtaining its phase diagram. By measuring the energy and correlations functions we have identified four different phases: metal, spin-gap with singlet superconductivity, superconductivity without spin-gap, and phase separation. We found at low densities that the phase sep...

Background:The aim of this study was to evaluate the effect of Ramadan fasting on SIRT1 mRNA expression in healthy men.Islamic Ramadan fasting is a holy religious ceremony that has many spiritual benefits. Additionally, it can be considered as the equivalent of calorie restriction that may affect physical health. The results of previous studies revealed that calorie restriction increases the li...

This paper deals with the Legendre wavelet (LW) collocation method for the numerical solution of the radial Schrodinger equation for hydrogen atom. Energy eigenvalues for the hydrogen bound system is derived -13.6 eV. Numerical results of the ground state modes of wave function for the hydrogen R(r) or the electron probability density function, has been presented. The numerical results ha...

thermophysical properties of fluorine are interesting because of its applications in different areas of technologyand industry. the computations of thermodynamic properties were performed with the gma equation of stateunder critical conditions. the present work reports calculations of density, volumetric, and thermodynamicproperties of liquid fluorine on extended ranges of pressure and temperat...

ACKING-DENSITY variations in a powder compact often P result in nonuniform shrinkages andor cracking during subsequent drying and sintering. In case of dry-pressed compacts, the effect of consolidation conditions on density variations has been sufficiently detailed by theoretical models.' However, although recent trends have favored the use of colloidal consolidation methods in order to attain ...

Determining excited state properties of atomic clusters is a challenging problem. In general, the ground state structural properties of clusters are unknown and not subject to direct experimental probes. Without knowledge of these properties, it is not possible to predict accurate optical excitations in clusters. Here we present a real-space-pseudopotential method to determine the structural pr...

Adsorption of cyanogen molecule on the surface of pristine and Sc-doped B12N12 nanocage is scrutinized using at DFT calculations to investigating its potential as chemical nanosensors. The results show that cyanogen is weakly adsorbed on the pristine B12N12 and consequently its electrical properties are changed insignificantly. In order to improve the...

Herbal medicine development against the non-communicable disease like diabetes is one of the thrust area of research in the field of global medicine. Here we have studied the separate and composite methanolic extract of seed of Eugenia jambolana and root of Musa paradisiaca for the management of streptozotocin-induced diabetes mellitus. We have measured the fasting blood glucose level and glyco...