Nucleic acid amplification tests such as the BDProbeTec ET (BDPT) system are more prone to reproducibility problems than are antigen detection tests and culture. A repeat testing algorithm for all samples with method other than acceleration (MOTA) scores greater than or equal to the cutoff value (2000) was developed for the BDPT system and applied in a clinical laboratory setting. All positive ...

Dickeya dadantii 3937 (ex Erwinia chrysanthemi), a member of the Enterobacteriaceae, causes soft rot in many economically important crops. A successful pathogen has to reach the interior of the plant in order to cause disease. To study the role of motility and chemotaxis in the pathogenicity of D. dadantii 3937, genes involved in the chemotactic signal transduction system (cheW, cheB, cheY and ...

ike a picky tourist looking for a hotel room, the malariacausing protozoan Plasmodium passes through several cells before settling on one to infect. Margarida Carrolo, Maria Mota (Instituto Gulbenkian de Ciência, Oeiras, Portugal), and colleagues now report that the initial invasions cause the damaged cells to make a factor that primes other cells for infection. The factor turned up in culture ...

In torque generation by the bacterial flagellar motor, it has been suggested that electrostatic interactions between charged residues of MotA and FliG at the rotor-stator interface are important. However, the actual role(s) of those charged residues has not yet been clarified. In this study, we systematically made mutants of Vibrio alginolyticus whose charged residues of PomA (MotA homologue) a...

Flagellated bacteria, such as Escherichia coli, are propelled by helical flagellar filaments, each driven at its base by a reversible rotary motor, powered by a transmembrane proton flux. Torque is generated by the interaction of stator proteins, MotA and MotB, with a rotor protein FliG. The physiology of the motor has been studied extensively in the regime of relatively high load and low speed...

2019 fue un año convulsionado para Suramérica, la región experimentó una fuerte oleada de protestas en diez los trece países que conforman el subcontinente austral América reflejaban profundo descontento hacia sistemas políticos países, estallido social marcó coyuntura política Latina. El libro Insatisfechos. Suramérica y las sociales analizadas obra Fabio Mota Omar García-Martínez, ofrece pers...

Mota and Herculano-Houzel (Reports, 3 July 2015, p. 74) assign power functions to neuroanatomical data and present a model to account for evolutionary patterns of cortical folding in the mammalian brain. We detail how the model assumptions are in conflict with experimental and observational work and show that the model itself does not accurately fit the data.

Resenha do livro organizado por Maria Eduarda Mota Rocha, Bourdieu à Brasileira, Rio de Janeiro, Confraria Vento, 2022.

The cross-species bacterial communication signal autoinducer 2 (AI-2), produced by the purified enzymes Pfs (nucleosidase) and LuxS (terminal synthase) from S-adenosylhomocysteine, directly increased Escherichia coli biofilm mass 30-fold. Continuous-flow cells coupled with confocal microscopy corroborated these results by showing the addition of AI-2 significantly increased both biofilm mass an...

Multi-person articulated pose tracking in complex unconstrained videos is an important and challenging problem. In this paper, going along the road of top-down approaches, we propose a decent and efficient pose tracker based on pose flows. First, we design an online optimization framework to build association of cross-frame poses and form pose flows. Second, a novel pose flow non maximum suppre...