ABSTRACT
Three different types (with glass, basalt and hybrid fibres) of composite rebars manufactured using the pultrusion process were loaded in four-point bending tests. All tests were carried out with acoustic emission sensors to better understand the mechanisms of damage. The data obtained were investigated using standard parameter analysis and also using unsupervised machine learning techniques called K-means. It was found that the best number of clusters is four or five. The numerical model using the finite-element method was calibrated on the basis of the experimental data. Further research will focus on numerical modelling of flexural behaviour of concrete beams reinforced with the presented composite rebars. The presented paper focuses on the characterization of the mechanical properties of composite rebars using a micromechanical approach, as well as analysis of progression damage processes appearing under flexural loading, using different perspectives provided by techniques such as acoustic emission analysis with machine learning-based clustering and numerical simulations. The presented research confirms that the proposed experimental-numerical approach can be applied in order to describe the flexural behaviour of Fibre Reinforcement Polymer (FRP) rods, which is relevant for investigating more complex cases of FRP concrete structures. This article is part of the theme issue 'Physics-informed machine learning and its structural integrity applications (Part 1)'.
ABSTRACT
BACKGROUND: Interruptions can impact consultation duration, doctors and patients' satisfaction, and quality of care provided. Although most of them seem to have a negative impact, affecting doctor-patient relationship and interfering with clinical reasoning, which increases the risk of error, there is still no evidence on their global impact on consultations. OBJECTIVES: To evaluate the number and duration of interruptions during general practice consultations. To compare physicians and patients' perceptions of their urgency and impact, as well as the overall satisfaction with the consultation. METHODS: Cross-sectional study of a representative sample of annual face-to-face general practice consultations at a Health Centre. Between January and March 2022, anonymous questionnaires were given to physicians and patients after consultation. We performed a descriptive and inferential statistical analysis. RESULTS: A total of 403 consultations were included. Physicians reported more interruptions than patients (108 vs. 87, P < 0.001). From patients' perspective those interruptions were more urgent (34.5%) compared with physicians' perspective (20.6%; P = 0.029). Patients undervalued their impact on consultations (7.1% of interruptions with a negative impact among patients vs. 24.7% among doctors; P < 0.001). Interruptions did not interfere with patients' satisfaction with consultation (P = 0.135) but were associated with lower physicians' satisfaction with consultation (P = 0.003). CONCLUSION: Physicians are more critical regarding consultations interruptions, being more aware of their incidence and reporting more often a negative impact, which translates into lower satisfaction with interrupted consultations. Patients devalue the occurrence of interruptions, showing no concern about their impact on security or privacy, and their satisfaction is not affected by them.
Interruptions during consultations can impact their duration, doctors and patients' satisfaction, and the quality of care provided. This study aims to evaluate the number and duration of consultation interruptions, to compare physicians and patients' perceptions of their urgency and impact, as well as the overall satisfaction with the consultation. For that, 403 face-to-face general practice consultations were analysed through anonymous questionnaires given to doctors and patients after each consultation. Physicians were more critical regarding the consultation's interruptions, being more aware of their incidence and reporting more often a negative impact. This translated into a lower satisfaction with the consultation where an interruption occurred. Therefore, interruptions seemed to increase physicians stress and dissatisfaction, which may represent a risk factor for burnout and jeopardize patient safety. On the other hand, patients seemed not to be aware of the possible impact of interruptions during consultations. They not only devalued their occurrence, showing no concern about possible impact on their security or privacy, but also their satisfaction with the consultation was not affected by them.
