| 21. |
- Eriksson, Anders, 1953-, et al.
(författare)
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Engineering computational technology
- 2007
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Ingår i: Advances in Engineering Software. - : Elsevier BV. - 0965-9978 .- 1873-5339. ; 38:11-12, s. 723-725
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Tidskriftsartikel (refereegranskat)
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| 22. |
- Fiedler, Heidelore, 1953-, et al.
(författare)
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Case study of a highly dioxin contaminated sports field : Environmental risk assessment and human exposure
- 1995
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Ingår i: Journal of Hazardous Materials. - : Elsevier. - 0304-3894 .- 1873-3336. ; 43:3, s. 217-227
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Tidskriftsartikel (refereegranskat)abstract
- Copper slag, containing high levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDF) was used as covering material of a community sports field. This led to a contamination up to 40 000 fold in comparison to background concentrations in soils. Levels and patterns of dioxins found in sediments of a nearby river proved a translocation of contaminated copper slag, while slightly elevated dioxin levels found in soil from nearby house gardens could not be attributed to the sports field as the source of dioxins.The annual flux of dioxins and furans to the environment was estimated using worst-case assumptions and the potential exposure of humans was deduced. Calculations of possible PCDD/PCDF-fluxes to the environment showed that only one major process - wind erosion - may have contributed to more than 90% of the total dioxin flux from the contaminated site to the surroundings, Based on PCDD/PCDF-exposure pathways for humans it was concluded that the PCDD/PCDF-content of the copper slag of the sports field did not pose a health hazard to athletes nor to the residents living in the neighbourhood.
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| 23. |
- Funk, Eva, 1953-, et al.
(författare)
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Patient-initiated breath-holds in MRI : an alternative for reducing respiratory artifacts and improving image quality
- 2015
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Ingår i: Clinical imaging. - : Elsevier. - 0899-7071 .- 1873-4499. ; 39:4, s. 619-622
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To investigate MRI image quality using two different breath-hold techniques.Materials and methods: Thirty patients remitted for MRI, 2D-dual gradient echo acquisition of the liver conducted two separate breath-hold acquisitions in randomized order, operator-instructed and patient-initiated. The images were reviewed by two radiologists.Results: There were no significant differences in image quality between the two breath-hold techniques either in overall image quality or respiratory motion artifacts. This assessment was equal and concordant for both radiologists.Conclusion: In terms of image quality, the patient self-initiated breath-hold was shown to be an equal alternative to conventional breath-hold imaging.
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| 24. |
- Funkesson, Kajsa, 1953-, et al.
(författare)
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Nurses' reasoning process during care planning taking pressure ulcer prevention as an example. A think-aloud study
- 2007
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Ingår i: International Journal of Nursing Studies. - : Elsevier BV. - 0020-7489 .- 1873-491X. ; 44:7, s. 1109-1119
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Tidskriftsartikel (refereegranskat)abstract
- Background: Nurses' clinical reasoning is of great importance for the delivery of safe and efficient care. Pressure ulcer prevention allows a variety of aspects within nursing to be viewed. Objective: The aim of this study was to describe both the process and the content of nurses' reasoning during care planning at different nursing homes, using pressure ulcer prevention as an example. Design: A qualitative research design was chosen. Settings: Seven different nursing homes within one community were included. Participants: Eleven registered nurses were interviewed. Method: The methods used were think-aloud technique, protocol analysis and qualitative content analysis. Client simulation illustrating transition was used. The case used for care planning was in three parts covering the transition from hospital until 3 weeks in the nursing home. Result: Most nurses in this study conducted direct and indirect reasoning in a wide range of areas in connection with pressure ulcer prevention. The reasoning focused different parts of the nursing process depending on part of the case. Complex assertations as well as strategies aiming to reduce cognitive strain were rare. Nurses involved in direct nursing care held a broader reasoning than consultant nurses. Both explanations and actions based on older ideas and traditions occurred. Conclusions: Reasoning concerning pressure ulcer prevention while care planning was dominated by routine thinking. Knowing the person over a period of time made a more complex reasoning possible. The nurses' experience, knowledge together with how close to the elderly the nurses work seem to be important factors that affect the content of reasoning. © 2006 Elsevier Ltd. All rights reserved.
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| 25. |
- Gerdle, Björn, 1953-, et al.
(författare)
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Criterion validation of surface EMG variables as fatigue indicators using peak torque : a study of repetitive maximum isokinetic knee extensions
- 2000
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Ingår i: Journal of Electromyography & Kinesiology. - 1050-6411 .- 1873-5711. ; 10:4, s. 225-232
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Tidskriftsartikel (refereegranskat)abstract
- A number of studies have been published that have used variables of the electromyogram (EMG) power spectrum during dynamic exercise. Despite these studies there is a shortage of studies of the validity of surface EMG registrations during repetitive dynamic contractions with respect to fatigue. The aim of this study was to investigate if the surface EMG variables mean frequency (MNF [Hz]) and the signal amplitude (RMS [μV]) are valid indicators of muscular fatigue (defined as “any exercise-induced reduction in the capacity to generate force or power output”) during maximum repeated isokinetic knee extensions (i.e. criterion validity using peak torque).Twenty-one healthy volunteers performed 100 isokinetic knee extensions at 90° s-1. EMG signals were recorded from the vastus lateralis, the rectus femoris and the vastus medialis of the right thigh by surface electrodes. MNF and RMS of the EMG together with peak torque (PT [Nm]) were determined for each contraction. MNF showed consequently higher correlation coefficients with PT than RMS did. Positive correlations generally existed between MNF and PT. The majority of the subjects had positive correlations between RMS and PT (i.e. decreases both in PT and in RMS).In conclusion, at the individual level MNF generally — in contrast to RMS — showed good criterion validity with respect to biomechanical fatigue during dynamic maximum contractions.
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| 26. |
- Gerdle, Björn, 1953-, et al.
(författare)
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Firing rate and conduction velocity of single motor units in the trapezius muscle in fibromyalgia patients and healthy controls
- 2008
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Ingår i: Journal of Electromyography & Kinesiology. - : Elsevier. - 1050-6411 .- 1873-5711. ; 18:5, s. 707-716
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Tidskriftsartikel (refereegranskat)abstract
- Fibromyalgia is a common chronic pain condition in the population (2-4%), which often is associated with prominent negative consequences with respect to participation in daily activities. There are several reports in the literature concerning the effects of acute experimental pain on motor control. However, a more heterogeneous picture exists in the literature with respect to whether chronic pain conditions affect motor control. This study compares firing rate and conduction velocity (CV) of single motor units (MUs) in the trapezius muscle of fibromyalgia patients (FM) and healthy controls (CON). Multi-channel surface electromyography was used to estimate both MU firing rate and CV because this technique allows simultaneous estimation of both these variables and the measurements are easy and non-invasive. In this study, 29 FM and 30 CON subjects participated and performed isometric shoulder elevations using weights up to 4 kg. No significant differences in the firing rate of MUs in the trapezius muscle were found between the FM and CON groups (95% confidence interval was -1.9 and 1.3 pulses per second). There were no significant differences in CV between the groups at 1 and 2 kg load. However, the FM group had significantly higher CV in contractions without external load (p=0.004). We were unable to confirm the pain-adaptation model since no differences in firing rate between the two groups were found. CV was significantly higher in FM than in healthy controls; this might be due to alterations in histopathology and microcirculation.
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| 27. |
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| 28. |
- Hult, Carl, 1953-, et al.
(författare)
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Timing of retirement and mortality : A cohort study of Swedish construction workers
- 2010
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Ingår i: Social Science and Medicine. - : Elsevier. - 0277-9536 .- 1873-5347. ; 70:10, s. 1480-1486
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Tidskriftsartikel (refereegranskat)abstract
- Recent studies indicate that early retirement per se may have a negative effect on health to such an extent that it increases mortality risk. One type of early retirement often referred to in these studies is retirement with disability pension/benefit. Given the overall objective of disability benefit programmes - to help the disabled live socially and economically satisfactory lives, freed from exposure to employment health hazards and thus avoid further declines in health - the finding is challenging. This paper examined the relationship between timing of retirement and mortality using a cohort of Swedish construction workers. The mortality risk of disability pensioners - excluding those with diagnoses normally connected to increased mortality - was compared with the risk of those continuing to work. Although initial indications were in line with earlier results, it became obvious that the increased mortality risk of disability pensioners did not depend on early retirement per se but on poor health before early retirement not explicitly recognized in the diagnosis on which the disability pension rested. The results indicate that there are no general differences in mortality depending on timing of retirement. Future studies of mortality differences arising from working or not working must sufficiently control for health selection effects into the studied retirement paths.
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| 29. |
- Höjer, Ingrid, 1953, et al.
(författare)
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Procedures when young people leave care : Views of 111 swedish social services mangers
- 2011
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Ingår i: Children and youth services review. - : Elsevier BV. - 0190-7409 .- 1873-7765. ; 33:12, s. 2452-2460:33, s. 2452-2460
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Tidskriftsartikel (refereegranskat)abstract
- In western societies, there is a general tendency towards a protracted transition to adulthood for young people, who thereby may become increasingly dependent on support from family. Young people leaving a placement in out-of-home care often lack such support, and will thus have a disadvantageous position compared to their peers. With the purpose of looking into the procedures when young people leave a placement in out-of-home care, telephone interviews were performed with 111 managers of social service units in two Swedish regions (West Sweden, and Stockholm Region), using a structured interview schedule. Answering rate was 99.1%. Only 6% of the managers had information of the young people's whereabouts once they had left care. 86-88% had general support programmes for all young people concerning housing, employment etc. but only 2-4% had specific programmes for young people leaving care. A majority of the managers were attentive of the difficulties the young people leaving care may encounter, but displayed little awareness of the consequences of a prolonged transition to adulthood, and the need for continued support after leaving care. Several managers referred to the general support of the Swedish welfare state, meaning that young people leaving care had the same access to support as all other young people in Sweden. Consequently, young people leaving care are at risk of being invisible in the welfare system and facing a compressed transition to adulthood.
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| 30. |
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