A Fast Algorithm for Simulating the Chordal Schramm-Loewner Evolution

The Schramm-Loewner evolution (SLE) can be simulated by dividing the time interval into N subintervals and approximating the random conformal map of the SLE by the composition of N random, but relatively simple, conformal maps. In the usual implementation the time required to compute a single point on the SLE curve is O(N). We give an algorithm for which the time to compute a single point is O(N^p) with p<1. Simulations with kappa=8/3 and kappa=6 both give a value of p of approximately 0.4.Comment: 17 pages, 10 figures. Version 2 revisions: added a paragraph to introduction, added 5 references and corrected a few typo

Разработка Android-приложения с функциями заказа услуг в многофункциональном комплексе

This article represents advantages of mobile applications and describes some useful elements of Android app implementation such as Navigation Drawer and ViewPager

Quantum interference from remotely trapped ions

We observe quantum interference of photons emitted by two continuously laser-excited single ions, independently trapped in distinct vacuum vessels. High contrast two-photon interference is observed in two experiments with different ion species, calcium and barium. Our experimental findings are quantitatively reproduced by Bloch equation calculations. In particular, we show that the coherence of the individual resonance fluorescence light field is determined from the observed interference

Characterization of genetic biodiversity with Vitis vinifera L. Sangiovese and Colorino genotypes by AFLP and ISTR DNA marker technology

A comparison between two recently developed, PCR-based DNA marker technologies (amplified fragment length polymorphism, AFLP; inverse sequence-lagged repeat analysis, ISTR) was carried out in a group of 19 Vitis vinifera L. accessions, including 13 putative Sangiovese-related grapevines and 6 ''coloured'' ecotypes whose fruits are of importance for conferring intense red colour to the wine. A large amount of polymorphic DNA fragments was revealed by both molecular techniques: 8 different AFLP and 5 ISTR primer combinations generated 264 and 249 polymorphic markers, respectively. Similarity relationships among the accessions were described by cluster analysis. The AFLP analysis revealed the existence of a uniform group for the Sangiovese (SG) ecotypes showing a high degree of genetic relatedness for the members of this cultivar. Among the coloured ecotypes (CLR), variability was more evident. Only the so called Colorino americano ecotype significantly diverged from both groups. ISTR analysis confirmed the genetic dissimilarity of Colorino americano and the existence of the SG and CLR groups, but in addition detected a higher proportion of polymorphism among the Sangiovese accessions compared to AFLP analysis. Sangiovese forte and Saragiolo apparently differed from the other SG-related grapevines in agreement with AFLP results. It is possible that the observed genetic dissimilarity between Sangiovese forte, Saragiolo and other SG-related types could be interpreted by the putative polyclonal origin of many grapevine cultivars, a concept which is generally accepted by the grapevine research community. Both AFLP and ISTR appear to represent innovative, efficient and sensitive molecular tools for investigating genetic diversity among Vitis vinifera ecotypes and for the eventual identification of clones

Isolation and characterization of microsatellite loci from Psidium guajava L.

A (GA)n and (GT)n microsatellite-enriched library was constructed and 23 nuclear simple sequence repeat (SSR) loci were characterized in the guava species (Psidium guajava L.). All SSR loci were found to be polymorphic after screening for diversity in different cultivars, and across-taxa amplification tests showed the potential transferability of most SSR markers in three other Psidium species. First to be published for P. guajava, this new SSR resource will be a powerful tool for genetic studies of guava, including cultivars identification and linkage mapping, as well as potentially for interspecific genetic studies within the genus Psidium. (Résumé d'auteur