A New Method for Obtaining the Baryons Mass under the Killingbeck Plus Isotonic Oscillator Potentials

In this work, the spectrum of ground state and excited baryons (N, {\Delta}, , , and {\Omega} particles) has been investigated by using a non-relativistic quantum mechanics under the Killingbeck plus isotonic oscillator potentials. Using the Jacobi-coordinates, anzast method and generalized G\"ursey Radicati (GR) mass formula the three body wave equation is solved to calculate the different states of the considered baryons. A comparison between our calculations and the available experimental data shows that the position of the Roper resonances of the nucleon, the ground states and the excited multiplets up to three GeV are in general well reproduced. Also one can conclude that; the interaction between the quark constituents of baryon resonances could be described adequately by using the combination of Killingbeck and isotonic oscillator potentials form.Comment: arXiv admin note: text overlap with arXiv:nucl-th/0506032 by other author

An International Index of Child Welfare

This paper develops an international index of child welfare that can be used for comparisons across countries and over time. Values of this index for the year 1998 are presented for 118 countries. The paper is organized as follows. Sections 2 briefly discusses the importance of child welfare both as a means to advance economic development objectives and as an end in itself. Section 3 calculates National Performance Gaps (NPGs), a concept first introduced by UNICEF (1995) to measure child welfare variables relative to international norms based on per capita income. After a review of some methodological issues, estimates are presented of NPGs for five variables: (1) the infant mortality rate; (2) the under-five mortality rate; (3) the percentage of underfive children who are underweight; (4) the primary school enrollment rate; and (5) the percentage of children reaching grade five. Section 4 draws on these NPGs to devise a composite index of child welfare, WINOCENT. Finally, Section 5 offers some concluding remarks.

The Intersection problem for 2-(v; 5; 1) directed block designs

The intersection problem for a pair of 2-(v, 3, 1) directed designs and 2-(v, 4, 1) directed designs is solved by Fu in 1983 and by Mahmoodian and Soltankhah in 1996, respectively. In this paper we determine the intersection problem for 2-(v, 5, 1) directed designs.Comment: 17 pages. To appear in Discrete Mat