9 documents found, page 1 of 1

Particle-in-cell simulations of pulsar magnetospheres: Transition between elect...

Aims. Global particle-in-cell (PIC) simulations of pulsar magnetospheres are performed with volume-, surface-, and pair-production-based plasma injection schemes to systematically investigate the transition between electrosphere and force-free pulsar magnetospheric regimes. Methods. We present a new extension of the PIC code OSIRIS that can be used to model pulsar magnetospheres with a two-dimensional axisymmet...

CoMMiTTEd: Covid, Migrantes e Minorias na formação de professores: um observató...

Sem resumo disponível.

Prevalence and clinical characteristics of late Onset Axial Spondyloarthritis: ...

Axial spondyloarthritis (axSpA) typically starts before the fourth decade oflife. Consistent with that, the Assessment of SpondyloArthritis international Society (ASAS)classification criteria for axSpA should be applied only in patients with chronic back pain startingbefore 45 years of age. It has, however, been suggested that axSpA can sometimes start later in lifewith a distinctive phenotype, the so-called ‘l...

Quantum electrodynamics vacuum polarization solver

The self-consistent modeling of vacuum polarization due to virtual electron-positron fluctuations is of relevance for many near term experiments associated with high intensity radiation sources and represents a milestone in describing scenarios of extreme energy density. We present a generalized finite-difference time-domain solver that can incorporate the modifications to Maxwell’s equations due to vacuum pola...

Presença de bactérias patogénicas e resistência antimicrobiana em ungulados sel...

De uma forma geral, os animais selvagens não estão expostos a agentes antimicrobianos. Assim, espera-se que a resistência da sua flora bacteriana a antibacterianos seja muito reduzida. Contudo, a crescente interação destes animais com atividades antropogénicas pode contribuir para um aumento da resistência das suas comunidades bacterianas. O presente estudo teve como objetivo: i) avaliar os níveis de resistênci...

Prediction of strong-motion seismic movements in Portugal – an approach based i...

The goal of the research plan is to contribute to an improved assessment of the seismic hazard in the Lower Tagus Basin (L.T.B.), in order to achieve that, we propose the introduction of realistic methods on the prediction of ground motion produced by moderate to large earthquakes in this area. This process involves the establishment of a structural 3D model and the evaluation of seismic potential of the faults...

Enhanced interpretation of newborn screening results without analyte cutoff values

PURPOSE: To improve quality of newborn screening by tandem mass spectrometry with a novel approach made possible by the collaboration of 154 laboratories in 49 countries. METHODS: A database of 767,464 results from 12,721 cases affected with 60 conditions was used to build multivariate pattern recognition software that generates tools integrating multiple clinically significant results into a single score. This...

Effect of an artificial food spray on field populations of the olive moth, Pray...

Experiments to control the olive fly; Bactrocera oleae (Gmel.) in North-Eastern...