Publications by authors named "S Ellingsen"

Objectives: The primary aim of this study was to investigate the prevalence of peri-implant diseases in a randomly selected Norwegian population. The secondary aims were to explore risk indicators for peri-implant diseases and to validate self-reported outcome measures from a survey with clinical parameters.

Material And Methods: Patients (n = 3083) rehabilitated with dental implants in 2014 were mailed a questionnaire and invited to a clinical examination.

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We present experimental results of a study on oxygen transfer rates in a water channel facility with varying turbulence inflow conditions set by an active grid. We compare the change in gas transfer rate with different turbulence characteristics of the flow set by four different water channel and grid configurations. It was found that the change in gas transfer rate correlates best with the turbulence intensity in the vertical direction.

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Research focusing on the scope of practice by nurse anesthetists (NAs) is limited. The purpose of this study was to examine NAs' scope of practice in Norway, and to explore whether and how this has changed during the period from 1979 to 2018. The study had a repeated crosssectional design.

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Background: During the COVID-19 pandemic, nursing home leaders implemented infection control to protect residents and staff.

Aim: To understand the barriers and facilitators for leading nursing homes through the COVID-19 pandemic.

Methods: We invited 34 nursing homes to participate, and 20 leaders (59%) attended focus group interviews.

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When surface waves interact with ambient turbulence, the two affect each other mutually. Turbulent eddies get redirected, intensified and periodically stretched and compressed, while the waves suffer directional scattering. We study these mutual interactions experimentally in the water channel laboratory at the Norwegian University of Science and Technology (NTNU) Trondheim.

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