Publications by authors named "Karl-Arne Johannessen"

Purpose: Drones are an emerging technology with the potential to improve laboratory logistics. This study is based on the hypothesis that the implementation of drones will benefit from an understanding of the current system and that existing transport solutions should be optimized before drone solutions are considered. It focuses on carriers transporting biological material today by car along a traditional circular route.

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We present a model for drone transport of the complete annual analytic volume of 6.5 million analyses-(routine and emergency) between two inner-city university laboratories at Oslo University Hospital located 1.8 km apart and with a time restriction for the analyses of no more than 60 min.

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Drones have been suggested as an emerging technology that has the potential to disrupt and improve healthcare. The attitude among healthcare workers towards the use of drones is important for its successful implementation. Our aim was to examine individual and institutional variables among employees that may be relevant for the successful implementation of drones.

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Objective: Most of the previous studies of drone transport of blood samples examined normal blood samples transported under tranquil air conditions. We studied the effects of 1- and 2-hour drone flights using random vibration and turbulence simulation (10-30 g-force) on blood samples from 16 healthy volunteers and 74 patients with varying diseased.

Methods: Thirty-two of the most common analytes were tested.

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Background: Lack of resources is often cited as a reason for long waiting times and queues in health services. However, recent research indicates these problems are related to factors such as uncoordinated variation of demand and capacity, planning horizons, and lower capacity than the potential of actual resources. This study aimed to demonstrate that long waiting times and wait lists are not necessarily associated with increasing demand or changes in resources.

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Background: Although health care reforms may improve efficiency at the macro level, less is known regarding their effects on the utilization of health care personnel. Following the 2002 Norwegian hospital reform, we studied the productivity of the physician workforce and the effect of personnel mix on this measure in all nineteen Norwegian hospitals from 2001 to 2013.

Methods: We used panel analysis and non-parametric data envelopment analysis (DEA) to study physician productivity defined as patient treatments per full-time equivalent (FTE) physician.

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Background: Physician dual practice, a combination of public and private practice, has attracted attention due to fear of reduced work supply and a lack of key personnel in the public system, increase in low priority treatments, and conflicts of interest for physicians who may be competing for their own patients when working for private suppliers. In this article, we analyze both choice of dual practice among hospital physicians and the dual practices' effect on work supply in public hospitals.

Methods: The sample consisted of 12,399 Norwegian hospital physicians working in public hospitals between 2001 and 2009.

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Previous studies of gender differences in relation to medical specialization have focused more on social variables than hospital-specific factors. In a multivariate analysis with extended Cox regression, we used register data for socio-demographic variables (gender, family and having a child born during the study period) together with hospital-specific variables (the amount of supervision available, efficiency pressure and the type of teaching hospital) to study the concurrent effect of these variables on specialty qualification among all 2474 Norwegian residents who began specialization in 1999-2001. We followed the residents until 2010.

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In industrialized countries, female physicians have up to 10h lower labor supply a week than male physicians. At the same time, the number of female physicians is increasing. The question analyzed in this article is whether these differences in labor supply for female and male hospital physicians persist in a modern welfare society, such as Norway, where comprehensive welfare reforms aim to reduce gender inequality are implemented.

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Background: Analysis of the future need for medical doctors necessitates an assessment of their productivity. The goals of this study were to analyze the relation between doctors' work force and the increased activity in hospitals, and to describe the development of working hours and salary for hospital doctors in a gender perspective.

Material And Methods: Information about man-labour years, working time and salary for doctors in Norwegian somatic hospitals was retrieved for the period 2001-2008.

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