The staggered magnetization of the Heisenberg antiferromagnet in two dimensions can be systematically approximated by a 1/N expansion. Cancellation between self energy diagrams leads to a Luttingerlike theorem for the ground state. We prove (for a smooth enough self energy) that the long range order of mean field theory (N=∞) survives corrections to all orders of 1/N . Divergences of this serie...

The authors are, respectively, Assistant Professor of Economics, Vanderbilt University, Nashville TN 37235; and Professor of Economics, Vanderbilt University, and Visiting Senior Scholar, The Jerome Levy Economics Institute of Bard College, Blithewood, Annandale-on-Hudson, NY 12504. Earlier versions of some of the material in this paper were presented at conferences at Lehigh University, Stanfo...

Based on knowledge from traditional Arabic and Islamic herbal medicine, this study aims to examine the effects of extracts from Ferula assa-foetida L on male fertility and sexual functioning in rats and in man. Therefore, ethanol extract from seeds and 50% water-ethanol extracts from roots were prepared into so-called “Masculine” tablets and assessed for their safety and efficacy in enhancing m...

Objective: Asafoetida (Ferula assa-foetida) is known as a valuable remedy for whooping cough, pneumonia, bronchitis in children and asthma treatment in folk medicine. In the present study the relaxant effects of the asafoetida on tracheal smooth muscle of guinea pigs and its probable mechanism(s) were examined. Materials and Methods: The relaxant effects of three cumulative concentrations of th...

This article uses Alexei Yurchak's account of late socialist performance and the deterritorialization authoritative discourses to discuss half-Korean identity Viktor Tsoi, most prominent rock start emerging from perestroika period. It representations perceptions Tsoi 1980s argue that in this period, it was possible perform nationalities listed each Soviet citizen's passport, as well official sl...

chemical composition of the essential oil of the fruit of ferula assafoetida l. obtained by steam distillation solvent extraction methodhas been studied by gc/ms for the first time. fifty-four components, comprising 96.9% of the total oil, were identified.epi-α-cadinol (23.15 %), germacrene b (10.98 %), α-gurjunene (6.18 %), (z)-1-propenyl secbutyl disulfide (5.89 %), 5-epi-7-epi-α-eudesmol (4....