37 research outputs found

    The Impact of Observed Trauma on Parents in a PICU

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    © 2016 by the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies. Objective: To explore parents' experiences of observed trauma, defined as traumatic events, unrelated to their own child, that parents/carers witness while in a PICU. Design: Exploratory qualitative study. Setting: Nineteen-bed mixed surgical/medical PICU in a tertiary university-affiliated children's hospital. Participants: Parents of 11 children, screened from a total sample of 100 children admitted to the PICU for greater than 48 hours. Interventions: Face-to-face screening interviews were conducted with parents following their child's discharge from PICU. Parents who reported observed trauma were interviewed a second time to explore their experiences. Measurements and Main Results: Two questionnaires were designed, one to screen for observed trauma and a second one to guide semistructured interviews. Of 100 parents who participated in a structured screening interview, 19% reported observed trauma. Of the 19 parents, 11 completed the second interview. Significant themes included: involuntary exposure; privacy and confidentiality; empathy for children and their families; reflection and personal growth; and staff communication. Conclusions: Observed trauma is not uncommon in the PICU. The results suggest that timely support may alleviate the short-term negative impact. Furthermore, some parents have reported positive aspects to their experience

    Analysis and possible estimation of keyhole depths evolution, using laser operating parameters and material properties

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    The authors propose an analysis of the effect of various operating parameters on the keyhole depth during laser welding. The authors have developed a model that uses the analysis of the thermal field obtained in 2D geometry, which is mainly defined by the characteristic Peclet number. This allows us to show that the dependence of the aspect ratio R of the keyhole with the operating parameters of the process is a function of two parameters: a normalized aspect ratio R0, controlled by the incident laser power and the spot diameter, and a characteristic speed V0 related to the process of heat diffusion. The resulting general law R = f (R0, V/V0) appears to be very well verified by different experimental data and allows to define mean thermophysical parameters of the used materials. These data can then be used for keyhole depths prediction for any subsequent operating parameters of the same material. This model also allows us to define precisely a criterion for a keyhole threshold generation. The authors will apply the derived procedure to successfully analyze experiments on materials with very different thermophysical properties (such as steel alloys and copper), with various focal spots, incident laser powers, and welding speeds

    Infrared target and background radiometric measurements--concepts units and techniques

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    This report discusses concepts units and techniques for making and describing measurements of radiation from targets and backgrounds.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/32197/1/0000256.pd

    The Notion of Public Service with Regard Hospital Performance

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    x-hal_journal_id=85120International audienc

    Pôles d'activité : au service de la diffusion de la gestion ?

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    x-hal_journal_id=27341International audienc
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