We give an unconditional proof of the André-Oort conjecture for arbitrary products of modular curves. We establish two generalizations. The first includes the Manin-Mumford conjecture for arbitrary products of elliptic curves defined over Q as well as Lang’s conjecture for torsion points in powers of the multiplicative group. The second includes the Manin-Mumford conjecture for abelian varietie...

Eosinophilia of the cerebrospinal fluid (CSF) can be found in various parasitic infestations of the central nervous system. Angiostrongylus canto­ nensis is the most common etiologic agent of eosi­ nophilic meningitis in Thailand and its interme­ diate host is Pila snails (Punyagupta et ai, 1970). Humans are infected by this parasite after ingesting raw Pila snails. The common presenting sympto...

We give an unconditional proof of the André-Oort conjecture for arbitrary products of modular curves. We establish two generalizations. The first includes the Manin-Mumford conjecture for arbitrary products of elliptic curves defined over Q as well as Lang’s conjecture for torsion points in powers of the multiplicative group. The second includes the ManinMumford conjecture for abelian varieties...

El objetivo de este trabajo fue establecer la influencia que ejerce granulometría del lecho río, forma pila un puente y los parámetros hidrológicos en profundidad socavación, a partir modelo físico. Para el desarrollo experimental se empleó suelo granular proveniente río al le realizaron ensayos laboratorio para determinar distribución tamaño las partículas, empleando materiales cuya clasificac...

In recent years the municipal government of Santiago Atitlan, Guatemala, has come to make “development” a priority. Of particular importance to the municipality has been environmental conservation and sustainability, specifically with regards to the deteriorating condition of Lake Atitlan. To achieve this goal, the mayor of Santiago Atitlan has jumpstarted several programs such as trash removal...

Molecular typing of Neisseria gonorrhoeae strains is an important tool for epidemiological studies of gonococcal infection and transmission. The recently developed multilocus sequence typing (MLST) method is based on the genetic variation among housekeeping genes. As a preliminary investigation for the development of such a method, we characterized the genetic diversity at 18 gonococcal houseke...

Cohesion of Myxococcus xanthus cells involves interaction of a cell surface cohesin with a component of the extracellular matrix. In this work, two previously isolated cohesion-defective (fbd) mutants were characterized. The fbdA and fbdB genes do not encode the cohesins but are necessary for their production. Both mutants produce type IV pili, suggesting that PilA is not a major cohesin.

Surface filamentous structures known as pili have been discovered recently in the gram-positive streptococcal pathogens that cause invasive disease in humans, including group B Streptococcus (GBS). We show that two GBS proteins involved in pilus formation, encoded by pilA and pilB, also facilitate the interaction of this important agent of central nervous system infection with endothelial cells...