background: measurement of gross , gross activities, and cosmogenic beryllium-7 (7be) concentrations were made both daily and weekly during the years 2001- 2004 from samples of atmospheric aerosols filtered from the air at tehran nuclear research center (35 41' n) and zahedan (28 29' n). materials and methods: weekly aerosol samples were collected with the high-volume air samplers on ...

where i, j, and t are firm-, industry-, and time-specific subscripts. Yit is the output of firm i in year t in the form of total sales, and Y j is the corresponding geometric mean in industry j. xit denotes the use of factor z. We consider three factors of production, labor, capital, and material input costs. Labor input is measured by the total wage bill, capital by gross fixed assets, and mat...

BACKGROUND Inflammatory responses in utero and in neonates have been involved in the development of white matter lesions. This study aimed to investigate the role of tumor necrosis factor-alpha (TNF-α) in spastic cerebral palsy. MATERIAL AND METHODS Plasma TNF-α was measured by ELISA in 54 children with spastic cerebral palsy and 28 aged-matched controls. Both groups were split into age subgrou...

We present the latest Next-to-Next-Leading order strong coupling constant, αs, extracted from Gross-Llewellyn-Smith sum rule. The value of αs from this measurement, at the mass of Z boson, is α s (M 2 Z) = 0.114 +0.009 −0.012. We discuss the previous strange sea quark measurement from the CCFR experiment and the prospects for improvements of the measurement in the NuTeV experiment.

The O(n) Gross-Neveu model for n < 2 presents a massless phase that can be characterized by right-left mover scattering processes. The limit n → 0 describes the on-shell properties of the random bond Ising model. Permanent address: International School for Advanced Studies and Istituto Nazionale di Fisica Nucleare, Trieste, Italy. 1. Aim of this paper is to discuss the S-matrix formulation of t...

We analyze a generalized Gross-Pitaevskii (GP) equation involving a paraboloidal trap potential in D space dimensions and generalized to a nonlinearity of order 2n+1. For attractive coupling constants collapse of the particle density occurs for Dn>/=2 and typically to a delta function centered at the origin of the trap. By introducing a special variable for the spherically symmetric solutions, ...