Non-transitive maps in phase synchronization

Concepts from the Ergodic Theory are used to describe the existence of non-transitive maps in attractors of phase synchronous chaotic systems. It is shown that for a class of phase-coherent systems, e.g. the sinusoidally forced Chua's circuit and two coupled R{\"o}ssler oscillators, phase synchronization implies that such maps exist. These ideas are also extended to other coupled chaotic systems. In addition, a phase for a chaotic attractor is defined from the tangent vector of the flow. Finally, it is discussed how these maps can be used to real time detection of phase synchronization in experimental systems

Genome-Wide Association Study in BRCA1 Mutation Carriers Identifies Novel Loci Associated with Breast and Ovarian Cancer Risk

BRCA1-associated breast and ovarian cancer risks can be modified by common genetic variants. To identify further cancer risk-modifying loci, we performed a multi-stage GWAS of 11,705 BRCA1 carriers (of whom 5,920 were diagnosed with breast and 1,839 were diagnosed with ovarian cancer), with a further replication in an additional sample of 2,646 BRCA1 carriers. We identified a novel breast cancer risk modifier locus at 1q32 for BRCA1 carriers (rs2290854, P = 2.7×10-8, HR = 1.14, 95% CI: 1.09-1.20). In addition, we identified two novel ovarian cancer risk modifier loci: 17q21.31 (rs17631303, P = 1.4×10-8, HR = 1.27, 95% CI: 1.17-1.38) and 4q32.3 (rs4691139, P = 3.4×10-8, HR = 1.20, 95% CI: 1.17-1.38). The 4q32.3 locus was not associated with ovarian cancer risk in the general population or BRCA2 carriers, suggesting a BRCA1-specific associat

Confirmatory and Structural Categorical Latent Variables Models

categorical latent variable, latent class analysis, MIMIC-LCA, latent transition analysis, generalized E–M algorithms, reading development,

Flora vascular da Mata da Pavuna, Botucatu, SP, Brasil

A Mata da Pavuna é um fragmento de Floresta Estacional Semidecidual em um cânion com afloramento rochoso e solo raso, localizado no município de Botucatu, Estado de São Paulo. Foram amostradas as espécies vasculares em estádio reprodutivo e identificadas até o menor nível taxonômico possível. Foram encontradas 386 espécies em 84 famílias. Fabaceae foi a família com maior número de espécies (44), seguida de Asteraceae (34), Euphorbiaceae (18), Poaceae (17), Malvaceae (14), Bignoniaceae e Solanaceae (12). Entre as Pteridophyta sensu lato, as famílias mais diversas foram Pteridaceae (nove espécies) e Polypodiaceae (sete). Comparado a outros levantamentos florísticos extensos na Mata Atlântica, os resultados ressaltam a elevada diversidade florística local, bem como a presença de espécies típicas de formações xerofíticas sugerindo a ocorrência de um encrave de vegetação seca nesta região. Destacamos também o primeiro registro de Pellaea ovata (Desv.) Weath. (Pteridaceae) para o Brasil.Mata da Pavuna is a fragment of Seasonal Semideciduous Forest located in a canyon characterized by rocky outcrops and shallow soil, in Botucatu municipality, São Paulo state. We collected fertile vascular plants and identified them to the lowest possible taxonomic level. We found 386 species in 84 families; Fabaceae was the most diverse family with 44 species, followed by Asteraceae (34), Euphorbiaceae (18), Poaceae (17), Malvaceae (14), Bignoniaceae (12) and Solanaceae (12). In the Pteridophyta sensu lato the most diverse families were Pteridaceae (nine species) and Polypodiaceae (seven). Compared to other comprehensive floristic surveys carried out in the Atlantic Forest these results show high floristic diversity with typical species from xerophytic vegetation, suggesting the presence of an enclave of dry forest. Pellaea ovata (Desv.) Weath. (Pteridaceae) is first reported here for Brazil.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista Instituto de Biociências de Rio Claro Pós-Graduação em Ciências BiológicasUniversidade Estadual Paulista Instituto de Biociências de Rio Claro Depto. BotânicaUniversidade Estadual Paulista Instituto de Biociências de Rio Claro Pós-Graduação em Ciências BiológicasUniversidade Estadual Paulista Instituto de Biociências de Rio Claro Depto. Botânic