Esnault-Viehweg developed the theory of cyclic branched coverings $\tilde X\to X$ smooth surfaces providing a very explicit formula for decomposition $H^1(\tilde X,\mathbb{C})$ in terms resolution ramification locus. Later, first author applies this to particular case $\mathbb{P}^2$ reducing problem combination global and local conditions on projective curves. In paper we extend above results...

Abstract N‐ or C‐methylation in natural and synthetic cyclic peptides can increase membrane permeability, but it remains unclear why this happens some cases not others. Here we compare three‐dimensional structures for from six families, including isomers differing only the location of an Cα‐methyl substituent. We show that a single methyl group increases permeability when connects expands hydro...

background: there are many concerns regarding the marginal seal of composite restorations, especially when composite restorations are subjected to cyclic loading. the aim of this study was to evaluate the effect of cyclic loading on the microleakage of silorane based composite compared with low shrinkage methacrylate-based composites in class v cavities. materials and methods: in this in vitro ...

A study is made of fracture from cyclic loading of WC spheres on the top surfaces of thick (1 mm) brittle layers on polymeric substrates, as representative of repetitive occlusal contact on dental crown structures. The advantage of glass layers is that internal cracks can be followed in situ during the entire cyclic loading process. The glass surfaces are first given a surface-abrasion treatmen...

A comprehensive study of the unimolecular dissociation of the N(3) radical on the ground doublet and excited quartet potential energy surfaces has been carried out with multireference single and double excitation configuration interaction and second-order multireference perturbation methods. Two forms of the N(3) radical have been located in the linear and cyclic region of the lowest doublet po...