Career effectiveness and its determinants

Study of careers has become an important aspect in the fast changing organizational context. It has come to be increasingly recognized at present, that career management is the responsibility of both the individual as well as the organization. This empirical study tries to understand the important elements of individual and organizational career practices that affect an employee’s career effectiveness. Most of the previous studies have used the objective terms of career success such as remuneration and position as the criterion variable. But since career outcome expectations vary across individuals and also since the concept of career itself has evolved over time, it was decided to use a more comprehensive concept of career outcome namely career effectiveness as the outcome variable. Career effectiveness as defined by Hall (2002) has both long-term orientation such as identity and adaptability as well as short-term orientation such as career attitudes and performance. Further both behavioral aspects such as performance and adaptability and individual subjective aspects such as identity and attitudes make it a more comprehensive way of assessing career outcome. The results of this research study indicate that individual determinants such as career planning and knowledge of organizational politics and organizational level determinants such as training and development support, quality of performance feedback and supervisory support explain significant variances in the determination of employee career effectiveness.

The effect of Mach number on unstable disturbances in shock/boundary-layer interactions

The effect of Mach number on the growth of unstable disturbances in a boundary layer undergoing a strong interaction with an impinging oblique shock wave is studied by direct numerical simulation and linear stability theory (LST). To reduce the number of independent parameters, test cases are arranged so that both the interaction location Reynolds number (based on the distance from the plate leading edge to the shock impingement location for a corresponding inviscid flow) and the separation bubble length Reynolds number are held fixed. Small-amplitude disturbances are introduced via both white-noise and harmonic forcing and, after verification that the disturbances are convective in nature, linear growth rates are extracted from the simulations for comparison with parallel flow LST and solutions of the parabolized stability equations (PSE). At Mach 2.0, the oblique modes are dominant and consistent results are obtained from simulation and theory. At Mach 4.5 and Mach 6.85, the linear Navier-Stokes results show large reductions in disturbance energy at the point where the shock impinges on the top of the separated shear layer. The most unstable second mode has only weak growth over the bubble region, which instead shows significant growth of streamwise structures. The two higher Mach number cases are not well predicted by parallel flow LST, which gives frequencies and spanwise wave numbers that are significantly different from the simulations. The PSE approach leads to good qualitative predictions of the dominant frequency and wavenumber at Mach 2.0 and 4.5, but suffers from reduced accuracy in the region immediately after the shock impingement. Three-dimensional Navier-Stokes simulations are used to demonstrate that at finite amplitudes the flow structures undergo a nonlinear breakdown to turbulence. This breakdown is enhanced when the oblique-mode disturbances are supplemented with unstable Mack modes

The Development of Iron and Steel Industry in India's Five Year Plans

Many thousands of years separate us from the historic Iron Age when man first learned how to smelt iron from ore and shape it into tools and weapons. Since then, the number of metals and alloys developed by man for his needs has been greatly extended, but still iron and steel hold the uncha-llenged supremacy as can be seen from the fact that during the first quarter of the present century the quantity of iron and steel produced and used throughout the world was much more than that of any other metal. In the recon-struction and economic development of our country.Whether it relates to greater industrial production or increased development of water and power resources, transport and agriculture or development of cottage industries, it is the iron and steel industry that forms the backbone allot provides scope for maximum employment of ever increasing population

On the Fermionic Frequencies of Circular Strings

We revisit the semiclassical computation of the fluctuation spectrum around different circular string solutions in AdS_5xS^5 and AdS_4xCP^3, starting from the Green-Schwarz action. It has been known that the results for these frequencies obtained from the algebraic curve and from the worldsheet computations sometimes do not agree. In particular, different methods give different results for the half-integer shifts in the mode numbers of the frequencies. We find that these discrepancies can be removed if one carefully takes into account the transition matrices in the spin bundle over the target space.Comment: 13 pages, 1 figur

On the widths of K levels of heavy elements

The ratios of the widths of K levels of heavy elements with atomic number 70 to 92 have been calculated with relativistic wave functions, retardation, screening and field theoretical corrections to relativistic energy. The calculated values have been compared with the available observed data and good agreement has been obtained

Weakly coupled N=4 Super Yang-Mills and N=6 Chern-Simons theories from u(2|2) Yangian symmetry

In this paper we derive the universal R-matrix for the Yangian Y(u(2|2)), which is an abstract algebraic object leading to rational solutions of the Yang-Baxter equation on representations. We find that on the fundamental representation the universal R-matrix reduces to the standard rational R-matrix R = R_0(1 + P/u), where the scalar prefactor is surprisingly simple compared to prefactors one finds e.g. for sl(n) R-matrices. This leads precisely to the S-matrix giving the Bethe Ansatz of one-loop N = 4 Super Yang-Mills theory and two-loop N = 6 Chern-Simons theory.Comment: 16 page