We apply well known nonlinear diffraction theory governing focusing of a powerful light beam of arbitrary shape in medium with Kerr nonlinearity to the analysis of femtosecond (fs) laser processing of dielectric in sub-critical (input power less than the critical power of self-focusing) regime. Simple analytical expressions are derived for the input beam power and spatial focusing parameter (nu...

In this paper, we present a system for visually retrieving ancient inscriptions, developed in the context of the ongoing Europeana network of Ancient Greek and Latin Epigraphy (EAGLE) EU Project. The system allows the user in front of an inscription (e.g, in a museum, street, archaeological site) or watching a reproduction (e.g., in a book, from a monitor), to automatically recognize the inscri...

Le jardinage urbain est aujourd’hui en plein essor. Les collectivités prennent part à cette dynamique pour répondre la demande des habitants mais aussi parce qu’elles y voient une solution de nombreux enjeux ville durable. De ce fait, elles sont confrontées celui qualité sols. Compartiment l’environnement rarement mis avant, les sols urbains effet soumis nombreuses contraintes : perte potential...

Two Latin squares of order n are r-orthogonal if their superposition produces exactly r distinct ordered pairs. If the second square is the transpose of the 3rst one, we say that the 3rst square is r-self-orthogonal, denoted by r-SOLS(n). It has been proved that the necessary condition for the existence of an r-SOLS(n) is n6 r6 n and r ∈ {n + 1; n − 1}. Zhu and Zhang conjectured that there is a...

In cystic fibrosis (CF), lung damage is mediated by a cycle of obstruction, infection, and inflammation. Here we explored complement inflammatory effectors in CF lung fluid. In this study soluble fractions (sols) from sputum samples of 15 CF patients were assayed for complement effectors and analyzed with clinical measurements. The pro-inflammatory peptide C5a was increased 4.8-fold (P = 0.04) ...

In my article on Dr. Hezekiah Beardsley it was stated that we were unable to locate the tombstone which was removed from the green, where Dr. Beardsley and his wife were buried, to the Grove Street Cemetery. Further search has revealed his stone upon which also appears an inscription to his wife. It is to be found along the west wall of the cemetery near the beginning of the stones that were ra...

An SOLS (self orthogonal Latin square) of order v with ni missing subSOLS (holes) of order hi (1 ≤ i ≤ k), which are disjoint and spanning (i.e. ∑k i=1 nihi = v), is called a frame SOLS and denoted by FSOLS(h n1 1 h n2 2 · · ·hk k ). In this paper, we prove that: if h ≥ 7, m ≥ 4, n ≥ 4 and n = 6, then there exists an FSOLS(h1); an FSOLS(h1) exists if h ≥ 7, h = 8, 12, 28 and m ≥ 17.

Cold atom devices permit the exploration of novel forms of quantum transport that are difficult or impossible to realize in traditional electron transport setups. Under the action of an external driving, long-term coherent atom motion can be quite sensitive to the initial switching conditions even in the presence of interactions [1]. If the driving violates spaceand time-inversion symmetry simu...

In this Letter, we report the fabrication of a highly photosensitive, microstructured polymer optical fiber using benzyl dimethyl ketal as a dopant, as well as the inscription of a fiber Bragg grating in the fiber. A refractive index change in the core of at least 3.2×10(-4) has been achieved, providing a grating with a strong transmission rejection of -23 dB with an inscription time of only 13...