We show that constraints on the generating functional have direct BRST-extensions in terms of nilpotent operators ∆ that annihilate this generating functional, and which may be of arbitrarily high order. The free energy F in the presence of external sources thus satisfies a “Master Equation” which is described in terms of a tower of higher antibrackets. UUITP-23/96 NBI-HE-96-52 hep-th/9610083

To gain insight into the non-abelian Born-Infeld (NBI) action, we study coinciding D-branes wrapped on tori, and turn on magnetic fields on their worldvolume. We then compare predictions for the spectrum of open strings stretching between these D-branes, from perturbative string theory and from the effective NBI action. Under some plausible assumptions, we find corrections to the Str-prescripti...

In addition to its suite of narrow dense rings, Uranus is surrounded by an extremely complex system dusty rings that were most clearly seen the Voyager spacecraft after it flew past planet. A new analysis highest resolution images these reveals a number them are less than 20 km wide. The extreme narrowness along with fact do not appear fall close known satellite resonances, should provide insig...

satureja rechingeri, belonging to the family lamiaceae, has been recently used in the pharmaceutical industry due to its high level of carvacrol in the essential oil. the domestication and breeding of suitable s. rechingeri variety has been started since few years ago in iran. the initial screening of natural populations, grown in the same environment, was performed and 58 talent clones were se...