isolates of the nuclear-polyhedrosis virus of the cabbage looper, Trichoplusia ni, failed to produce detectable disease or mortality when fed to Pseudoplusia includens, Rachiplusia ou, and Anagrapha bilola at high-dosage levels. If cross infection occurred, it was inapparent and the virus was occult.
A power series r with noncommuting variables is called Parikh simple if no two words in the support of r are commutatively equivalent. We show that equality is decidable for Parikh simple algebraic power series having their Nike Free Sale Canada
coefficients in a computable field.
Refinement is conventionally used to effect a demonstrably-correct development from an abstract specification. Emergent systems present an interesting challenge in terms of demonstrably-correct development, because there is a discontinuity between the global and local system descriptions. This is a position paper, exploring some aspects of the Nike Free Run 2 Toronto
challenge in relation to the traditional model of refinement.
We classify Kropina metrics of weakly isotropic flag curvature in dimension greater than two. Moreover, we prove that every Einstein Kropina metric in dimension greater than two is a Ricci constant metric with vanishing S-curvature in different way from Zhang and Shen (2013)  and prove the three-dimensional rigidity theorem for an Einstein Kropina metric.