41 documents found, page 1 of 5
Medication use for the management of professional performance: Between invisibi...
Lopes, N.; Tavares, D.; Pegado, E.; Raposo, H.; Rodrigues, C.This article aims to explore pharmaceuticalisation processes in professional work contexts. The approach focuses on identifying patterns of medicine and dietary supplement use for managing work performance, and on discussing the relationship between these consumption practices and work-related pressure factors. This analysis adapts the notions of ‘normalisation’ to understand the extent of cultural acceptabilit...
Nurses under pressure: The demands of professional performance and their manage...
Raposo, H.; Egreja, C.; Lopes, N.This article discusses the relationship between the demands on nurses’ professional performance and adherence to the use of medicines and supplements for their management. This approach allows us to analyze the transformations of nursing work and how nurses use various natural and pharmaceutical resources to cope with the pressures they face in their professional activities. To understand the interconnection be...
Medication literacy and its social contextuality
Lopes, N.; Rodrigues, C.; Pegado, E.This article aims to contribute to the discussion about medication literacy, by focussing on the social contextuality of the information mobilised in the use of medicines. We aim to explore the social construction processes of medication literacy, as an essential dimension for a more layperson-centred approach in the promotion of literacy in this field. This approach is justified by the growing social and cultu...
Filamentation of a relativistic proton bunch in plasma
Verra, L.; Amoedo, C.; Torrado, N.; Clairembaud, A.; Mezger, J.; Pannell, F.; Pucek, J.; van Gils, N.; Bergamaschi, M.; Della Porta, G. Z.; Lopes, N.We show in experiments that a long, underdense, relativistic proton bunch propagating in plasma undergoes the oblique instability, which we observe as filamentation. We determine a threshold value for the ratio between the bunch transverse size and plasma skin depth for the instability to occur. At the threshold, the outcome of the experiment alternates between filamentation and self-modulation instability (evi...
Medicines and medication literacy: Social practices and use of information
Lopes, N.; Pegado, E.; Egreja, C.; Rodrigues, C. F.; Fernandes, A.This article discusses results from a sociological study on (i) the sources and use of information on medicines and/or supplements and (ii) the self-assessment of how informed participants were about the last medicine or supplement they purchased. It seeks to demonstrate the plurality of information sources (expert and lay) that individuals call upon—with which they build up their medication literacy—and their ...
Numerical modelling and benchmark study of fire resistance of stainless steel s...
Pinho-da-Cruz, J.; Lopes, N.; Vila Real, P.; Couto, C.The validation of numerical models, for the behaviour of structures in case of fire, is crucial for the development of precise and safe design rules for members at elevated temperatures and for the application of advanced calculation methods, on part or complete building structures under fire. Recently, a new constitutive law model for stainless steel at elevated temperatures, based on a two-stage Ramberg–Osgoo...
Transition between instability and seeded self-modulation of a relativistic par...
Batsch, F.; Muggli, P.; Agnello, R.; Ahdida, C. C.; Amoedo Goncalves, M. C.; Andrebe, Y.; Apsimon, O.; Apsimon, R.; Bachmann, A.-M.; Baistrukov, M. A.We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude [≥(4.1±0.4) MV/m], the phase of the modulation along the bunch is reproducible from event to event, with 3%-7% (of 2?) rms variations all along the bunch. The phase is not reproducible for lower ...
Analysis of proton bunch parameters in the AWAKE experiment
Hafych, V.; Caldwell, A.; Agnello, R.; Ahdida, C. C.; Aladi, M.; Amoedo Goncalves, M. C.; Andrebe, Y.; Apsimon, O.; Apsimon, R.; Bachmann, A.-M.A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages of the AWAKE Run 1 data-taking period. The transverse structure of the bunch is observed at multiple positions along the beamline us...
Simulation and experimental study of proton bunch self-modulation in plasma wit...
Morales Guzmán, P. I.; Muggli, P.; Agnello, R.; Ahdida, C. C.; Aladi, M.; Amoedo Goncalves, M. C.; Andrebe, Y.; Apsimon, O.; Apsimon, R.We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation results agree with the experimental results reported [F. Braunmller, T. Nechaeva et al. (AWAKE Collaboration), Phys. Rev. Lett. 125, 264801 (2020)PRLTAO0031-900710.1103/PhysRevLett.125.264801]: with negative gradients, the charge of the...
The role of the gene codY in S. epidermidis biofilm formation
Lopes, N.; Cerca, Nuno; França, AngelaBackground: The development of viable but non-culturable (VBNC) cells within biofilms is a major clinical concern, as it contributes to the recurrence of biofilm-related infections. CodY, a global transcriptional regulator of metabolism and virulence genes, was previously found upregulated in Staphylococcus epidermidis 9142 biofilms with higher proportions of VBNC cells, suggesting a potential role in the media...