A new Brazilian hand-based behavioural biometrics database: Data collection and analysis

© 2016 Institution of Engineering and Technology. All rights reserved. The technologies of biometrics provide a variety of powerful tools to determine or confirm individual identity while, more recently, there has been considerable interest in using soft biometrics (personal information which is characteristic of, but not unique to, individuals) in the identification task. Although the area has seen an increase advance in the last decade, there is still the need to understand the existing demographics differences. More importantly, though, is the acquisition of new and relevant multimodal databases that can be used for new investigations. Therefore, this paper presents a protocol for the collection of the first hand-based multimodal biometrics database with keystroke dynamics, keystroke-touch dynamics and handwritten signature in Brazil

Componentes da produção, produtividade de grãos e características tecnológicas de cultivares de feijão Yielding components and technological characters of common bean cultivars

A utilização de cultivares com elevado potencial produtivo, adaptados ao local de cultivo e de boas características culinárias são de suma importância à cadeia produtiva do feijão. O objetivo deste trabalho foi avaliar o comportamento de cultivares de feijão (Phaseolus vulgaris L.) do grupo comercial carioca, identificando aqueles superiores quanto aos componentes da produção, produtividade de grãos, e às características tecnológicas, na semeadura "das águas" de 2000. O delineamento experimental foi o de blocos ao acaso, com 15 tratamentos, constituídos pelas cultivares: Carioca, Pérola, IAC-Carioca SH, IAC-Carioca Eté, IAC-Carioca Pyatã, Carioca Precoce, IAC-Carioca Aruã, FT-Bonito, Rudá, Aporé, Princesa, IAPAR 14, IAPAR 80, IAPAR 81 e Porto Real, com quatro repetições. A massa de cem grãos e o número de grãos por vagem são os componentes de maior influência na produtividade de grãos de cultivares de feijão. As cultivares Aporé, Carioca Precoce e Rudá, destacam-se com produtividade de grãos acima de 3.500 kg ha-1. As características tecnológicas dos grãos das cultivares Carioca, IAPAR 80 e IAPAR 81, são maiores.<br>High yielding potential and proper cooking characters are the main desirable factors to be taken into account in the choise of new common bean cultivars. In this research work, the yielding components considered were number of pods/plant, number of grains/pod and 100 grain-mass. As to the tecnological characters, grain crude protein content, cooking time and hydration ability were measured. A randomized complete block design, with four replications, was set up in which 15 common bean cultivars were checked for the above mentioned parameters (Carioca, Pérola, IAC Carioca, IAC Carioca Eté, IAC Carioca Pyatã, Carioca Precoce, IAC Carioca Aruã, FT Bonito, Rudá, Aporé, Princesa, IAPAR 14, IAPAR 80, IAPAR 81 and Porto Real). Grain yileding potentials above 3,500 kg ha-1 were observed in the cultivars Aporé, Carioca Precoce and Rudá with superior cooking parameters being detected in the cultivars Carioca, IAPAR 80 and IAPAR 81

Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo

International audienceDespite the growing number of confident binary black hole coalescences observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains challenging due to the limited availability of gravitational waveforms that include effects of eccentricity. Here, we present observational results for a waveform-independent search sensitive to eccentric black hole coalescences, covering the third observing run (O3) of the LIGO and Virgo detectors. We identified no new high-significance candidates beyond those that were already identified with searches focusing on quasi-circular binaries. We determine the sensitivity of our search to high-mass (total mass $M>70$$M_\odot$) binaries covering eccentricities up to 0.3 at 15 Hz orbital frequency, and use this to compare model predictions to search results. Assuming all detections are indeed quasi-circular, for our fiducial population model, we place an upper limit for the merger rate density of high-mass binaries with eccentricities $0 < e \leq 0.3$ at $0.33$ Gpc$^{-3}$ yr$^{-1}$ at 90% confidence level