The low-energy supersymmetric quantum mechanics describing D-particles in the background of D8-branes and orientifold planes is analyzed in detail, including a careful discussion of Gauss’ law and normal ordering of operators. This elucidates the mechanism that binds Dparticles to an orientifold plane, in accordance with the predictions of heterotic/type I duality. The ocurrence of enhanced sym...

We study the market implications of ambiguity in many common models. We show that generic determinacy is a robust feature in many general equilibrium models that allow a distinction between ambiguity and risk. JEL Codes: D0, D5, D8, G1

A monopolist supplies a multi-attribute good and does not know whether the consumer makes or avoids tradeoffs between attributes. We illustrate a form of exploitation to which the tradeoff-avoiding consumer is vulnerable. (JEL: D6, D8, L1, L2)

To assess reinfection of BALB/c mice with different Toxoplasma gondii strains, the animals were prime infected with the non-virulent D8 strain and challenged with virulent recombinant strains. Thirty days after challenge, brain cysts were obtained from surviving BALB/c mice and inoculated in Swiss mice to obtain tachyzoites for DNA extraction and PCR-RFLP analysis to distinguish the different T...

Rhythmic surface Electromyographic (sEMG) bursts for which their returns occur at irregular times are analyzed and compared among healthy and injured central nervous systems. The rhythmic electrophysiological activity in the present study has been defined as “Bursting Rate Variability” (BRV) due to the inherent aperiodicity of successive sEMG bursts, which are concomitant with “doublet” wavefor...

In [7] a characterization of transitive permutation groups having a non-self-paired suborbit of length 2 (with respect to which the corresponding orbital graph is connected) was obtained in terms of their point stabilizers. As a consequence, elementary abelian groups were proved to be the only possible abelian point stabilizers arising from such actions, and D8 was shown to be the only nonabeli...

The low-energy supersymmetric quantum mechanics describing D-particles in the background of D8-branes and orientifold planes is analyzed in detail, including a careful discussion of Gauss’ law and normal ordering of operators. This elucidates the mechanism that binds Dparticles to an orientifold plane, in accordance with the predictions of heterotic/type I duality. The ocurrence of enhanced sym...