Reclassification of lesions in biopsies by fine-needle aspiration of pancreas and biliary tree using Papanicolaou classification.

Background: Our aim was to evaluate the application of the classification of the Papanicolaou Cytopathology Society for the report of biopsies by fine-needle aspiration (FNA) of pancreas and bile duct.

Methods: The FNAs obtained consecutively during 1 year were analyzed. Descriptive statistics were performed and sensitivity, specificity, positive predictive value, negative predictive value, and cytohistological correlation were determined.

Rho1 and other GTP-binding proteins are associated with vesicles carrying glucose oxidase activity from Fusarium oxysporum f. sp. lycopersici.

In eucaryotic cells, the delivery of a secreted protein to the plasma membrane via vesicles must include transport, recognition, and fusion events. Proteins exposed on the cytoplasmic face of the secretory vesicles play a role in these events; these include the GTP-binding proteins, which are crucial components in this process. Fractions enriched with vesicles carrying glucose oxidase (GOX) activity from Fusarium oxysporum f.

Pioneers and Followers: Migrant Selectivity and the Development of U.S. Migration Streams in Latin America.

We present a method for dividing the historical development of community migration streams into an initial period and a subsequent takeoff stage with the purpose of systemically differentiating pioneer migrants from follower migrants. The analysis is organized around five basic research questions. First, can we empirically identify a juncture in the historical development of community-based migration that marks the transition from an initial stage of low levels of migration and gradual growth into a takeoff stage in which the prevalence of migration grows at a more accelerated rate? Second, does this juncture point exist at roughly similar migration prevalence levels across communities? Third, are first-time migrants in the initial stage (pioneers) different from first-time migrants in the takeoff stage (followers)? Fourth, what is the nature of this migrant selectivity? Finally, does the nature and degree of pioneer selectivity vary across country migration streams?

Rho1 has distinct functions in morphogenesis, cell wall biosynthesis and virulence of Fusarium oxysporum.

Rho-type GTPases regulate polarized growth in yeast by reorganization of the actin cytoskeleton and through signalling pathways that control the expression of cell wall biosynthetic genes. We report the cloning and functional analysis of rho1 from Fusarium oxysporum, a soilborne fungal pathogen causing vascular wilt on plants and opportunistic infections in humans. F.