In this paper, we generalize to the “log regular case” a result of de Jong and Oort which states that any morphism (satisfying certain conditions) from the complement of a divisor with normal crossings in a regular scheme to a moduli stack of stable curves extends over the entire regular scheme. The proof uses the theory of “regular log schemes ” – i.e., schemes with singularities like those of...

Theorem 1.1 (Chudnovsky’s theorems). Let Λ = Zω+Zω′ ⊂ C be a lattice with invariants g2, g3, Weierstrass functions ℘, ζ and quasi-periods η, η′, all defined in the usual way (see [Sil94]). Each of the sets below contains at least two algebraically independent numbers : first (1) {g2, g3, η ω , π ω}, (2) {g2, g3, ω, η, ω′, η′}; if we assume g2, g3 ∈ Q̄ : (3) { η ω , π ω}, (4) {ω, ω′, η, η′}; and ...

Motivated by the Strominger-Yau-Zaslow conjecture, we study fibre spaces whose total space has trivial canonical bundle. Especially, we are interest in CalabiYau varieties with fibre structures. In this paper, we only consider semi-stable families. We use Hodge theory and the generalized Donaldson-Simpson-Uhlenbeck-Yau correspondence to study the parabolic structure of higher direct images over...

Many metazoan cell types are polarized by asymmetric partitioning of the conserved PAR (PAR-3/PAR-6/PKC-3) complex. Cortical domains containing this PAR complex are counterbalanced by opposing domains of varying composition. The tumor-suppressor protein LGL facilitates asymmetric localization of cell fate determinants, in part through modulating the activity of the PAR complex. However, the mec...

Since quinidine was introduced by Frey in 1918 it has remained the drug of choice for the conversion of certain arrhythmias to sinus rhythm and for the maintenance of normal rhythm once achieved. It is commonly used in this manner for atrial fibrillation, atrial flutter, -paroxysmal tachycardia of atrial, nodal, and ventricular origin, and ventriculat fibrillation. It has also been employed as ...

El síndrome de preexcitación cardiaca se caracteriza por la presencia fibras que conectan las aurículas con los ventrículos manera directa, sin tener atravesar el nodo atrio ventricular (AV). La prevalencia a nivel mundial este tipo oscila entre 0.1 y 0.3 % población general, mostrando un relación 2:1 hombres mujeres en su mayoría, cerca del 95 no está asociado ninguna patología asociada. 1, 2,...

The clinical use of direct current shock in the management of cardiac arrhythmias (Lown, Amarasingham, and Neuman, 1962) has been amply confirmed by many other workers (O'Brien, Resnekov, and McDonald, 1964; Oram et al., 1964; Morris et al., 1964b). The length of time that sinus rhythm persists after the electrical conversion of chronic arrhythmias is often disappointingly short, even when quin...

Plants plastically change their morphological and physiological traits in response to environmental changes, which are accompanied by changes in endogenous levels of phytohormones. Although roles of phytohormones in various aspects of plant growth and development were elucidated, their importance in the regulation of biomass allocation was not fully investigated. This study aimed to determine c...