We study the corrections to ǫ/ǫ in the minimal supersymmetric model at the leading order in QCD and QED. Supersymmetry can increase the standard model prediction for ǫ/ǫ by at most 40% for mt = 174 GeV, an enhancement which is indistinguishable from the present theoretical uncertainties. The most conspicuous effect of supersymmetry is a strong depletion of ǫ/ǫ. For certain choices of supersymme...

∗ e-mail address: [email protected]. ∗∗ e-mail address: [email protected]. ∗ ∗ ∗ e-mail address: [email protected]. Convergence of the standard model gauge coupling constants to a common value at around 2× 1016 GeV is studied in the context of orbifold theories where the modular symmetry groups for T and U moduli are broken to subgroups of PSL(2, Z). The values of the moduli required...

A particle spectrum below the string scale in accordance with predictions from heterotic string theory yields a Planck mass mP l = (8πGN ) −1/2 which exceeds the string scale by a factor ≃ 61.9. A Planck mass mP l = 2.43× 1018 GeV then corresponds to a string scale ms = 3.9 × 1016 GeV. Such a low value for the string scale in turn implies that the relative strength of graviton and vector exchan...

Lomofungin, an antibiotic active against fungi, yeasts, and bacteria, was found to be a potent inhibitor of purified Escherichia coli deoxyribonucleic acid (DNA)-dependent ribonucleic acid (RNA) polymerase. It prevents RNA synthesis by a direct interaction with the polymerase and not with the template or substrate; chain elongation is halted promptly. Three DNA-dependent RNA polymerases isolate...

Solving the budget deficit problem is a concern for many countries; some economists emphasized tax increases or tax cuts, while others favour spending cuts. This paper investigates the interrelationship between total government expenditure and total tax revenue in Barbados using both bivariate and multivariate cointegrating models. The technique of Granger Causality is also applied to determine...