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- Gustafsson, Emil, et al.
(författare)
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Strain and stress conditions at crack initiation during shearing of medium- and high-strength steel sheet
- 2017
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Ingår i: International Journal of Mechanical and Materials Engineering. - : Springer. - 2198-2791 .- 1823-0334. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Strain and stress conditions in sheet metal shearing are of interest for calibration of various fracture criteria. Most fracture criteria are governed by effective strain and stress triaxiality.Methods: This work is an attempt to extend previous measurements of strain fields in shearing of steel sheets with the stress state calculated from the measured displacement fields. Results are presented in terms of von Mises stress and stress triaxiality fields, and a comparison was made with finite element simulations. Also, an evaluation of the similarities of the stress conditions on the sheet surface and inside the bulk material was presented.Results: Strains and von Mises stresses were similar to the surface and the bulk material, but the stress triaxiality was not comparable. There were large gradients in strain and stress around the curved tool profiles that made the result resolution dependent and comparisons of maximum strain and stress values difficult.Conclusions: The stress state on the sheet surface calculated from displacement field measurements is useful for validation of a three-dimensional finite element model.
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- Gustafsson, Silje, et al.
(författare)
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Influence of self-care advice on patient satisfaction and healthcare utilization
- 2016
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Ingår i: Journal of Advanced Nursing. - : Wiley. - 0309-2402 .- 1365-2648. ; 72:8, s. 1789-1799
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Tidskriftsartikel (refereegranskat)abstract
- AimThe aim of this study is to explore the influence of nurse-led self-care advice on healthcare utilization and patients' satisfaction with telephone nursing.BackgroundMany consultations in high-cost settings are for conditions that are manageable through self-care and callers with greater satisfaction with the nurse interaction are nearly four times more likely to engage in self-care.DesignCross-sectional study.MethodsQuestionnaires were sent out to 500 randomly selected callers to the Swedish Healthcare Direct in Northern Sweden during March 2014. Callers were asked about their satisfaction with the consultation, their intended actions prior to consultation, the recommendation given by the nurse and the action undertaken after the call.ResultsYoung callers and persons recommended watchful waiting or recurrence if no improvements were significantly less satisfied with their care. When calling on their own behalf, both men and women rated the severity of their symptoms equally and were advised to self-care to the same extent. Self-care advice had a constricting influence on self-reported healthcare utilization, with 66·1% of cases resulting in a lower level of care than first intended. Feeling reassured after the call was the aspect of nursing care that influenced satisfaction the most.ConclusionReceiving self-care advice rather than referral to a general practitioner influences patient satisfaction negatively. Feeling reassured after consultation is strongly related to satisfaction, which in turn has been found to increase the likelihood of engaging in self-care behaviour.
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- Gustafsson, Silje, et al.
(författare)
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Need for reassurance in self-care of minor illnesses
- 2018
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Ingår i: Journal of Clinical Nursing. - : John Wiley & Sons. - 0962-1067 .- 1365-2702. ; 27:5-6, s. 1183-1191
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Tidskriftsartikel (refereegranskat)abstract
- AIMS AND OBJECTIVES:This study describes people's need for reassurance in self-care of minor illnesses.BACKGROUND:Self-care and active surveillance are advocated as important strategies to manage minor illnesses. Reassurance influences patient satisfaction and confidence in the practicing of self-care.DESIGN:This study is a descriptive and interpretive qualitative study.METHODS:Twelve persons with experience in self-care and receiving self-care advice were recruited, and data were collected using semi-structured interviews between September and December 2014. Data were analyzed using qualitative content analyses.RESULTS:Having previous experience and the ability to actively manage symptoms using self-care interventions was described as reassuring. Participants became stressed and concerned when the symptoms persisted and interventions lacked the desired effect, which often resulted in a decision to consult. Participants wanted to feel that the nurse was an actual person, who was sympathetic, present and understanding, when they received self-care advice. The nurse's assessment and reasoning of the symptoms facilitated care-seekers' assessments of risk, and clear and concrete advice on how to manage the symptoms exerted a calming effect. Patients needed to trust that the nurse understood their situation to embrace the advice, and being invited to return created a feeling that the nurse had listened and taken them seriously.CONCLUSION:Reassurance has the potential to allay doubts and fears to build confidence, which influences self-care and consultation behavior. Personal presence in the encounter, receiving an assessment and an explanation of the symptoms and precise advice are reassuring. This article is protected by copyright. All rights reserved.
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- Gustafsson, Silje, et al.
(författare)
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Perceptions of needs related to the practice of self-care for minor illness
- 2015
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Ingår i: Journal of Clinical Nursing. - : Wiley. - 0962-1067 .- 1365-2702. ; 24:21-22, s. 3255-3265
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Tidskriftsartikel (refereegranskat)abstract
- Aims and objectivesThe aim of this study was to describe people's perceptions of needs to feel confident in self-care for minor illnesses as well as their perceptions about supporting and obstructing factors in the practice of self-care.BackgroundMinor illness constitutes a large part of primary care, and patients' attendance to doctors' appointments for minor illness has been seen to increase future attendance for the same condition. Almost half of the consultations with telenurses result in the provision of self-care advice.DesignA cross-sectional survey.MethodPrimary data were collected using a questionnaire, and the study participants (n = 315) were randomly selected from the national Swedish address register.ResultsHaving knowledge and receiving health care advice and reliable information were perceived to be needs in order for participants to feel confident in self-care. Having family or friends to consult with was perceived to be a positive factor influencing confidence in self-care, especially for persons under the age of 35. Health care services were perceived to support self-care practice by offering easy access to care, giving information about self-care, and offering increased follow-up after consultations. Lack of knowledge, along with difficulties being away from work, were obstructing factors in the practice of self-care.ConclusionsYoung age was the factor influencing people's perceptions of needs and supporting factors the most. Young age and low knowledge scores about minor illnesses were the two factors that had the most influence on perceived obstructing factors.Relevance to clinical practiceNurses play a major role in the promotion of self-care and in the dissemination of self-care advice. If health care services fail to meet the needs of care-seekers with minor illnesses, patients might turn to out-of-hours clinics and emergency departments for help.
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| 7. |
- Gustafsson, Silje, et al.
(författare)
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Psychometric evaluation of a Swedish self-efficacy scale and recovery locus of control scale in the context of minor illness
- 2013
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Ingår i: Scandinavian Journal of Caring Sciences. - : Wiley. - 0283-9318 .- 1471-6712. ; 27:3, s. 765-772
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Tidskriftsartikel (refereegranskat)abstract
- Reliable and valid instruments are essential when examining the role of self-efficacy and locus of control in the self-care context. The aim of this study was to test the validity and reliability of the Self-Efficacy Scale in Self-Care (SESSC) and the Swedish version of the Recovery Locus of Control scale (RLoC) in the context of minor illness. A descriptive correlational design was used to assess the psychometric characteristics of the scales. The study population was 317 randomly selected Swedish inhabitants aged 18–80. The results from this study showed that the RLoC has limitations in reliability and validity and should not be applied in the context of self-care of minor illness. The SESSC proved to be a reliable and valid instrument in assessing self-efficacy in self-care for minor illness.
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- Gustafsson, Silje, et al.
(författare)
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Self-care for minor illness
- 2015
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Ingår i: Primary Health Care Research and Development. - 1463-4236 .- 1477-1128. ; 16:1, s. 71-78
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To describe experiences with and knowledge of minor illness, self-care interventions used in minor illness and channels of information used when providing self-care for minor illness.Background: Although minor illness is self-limiting, symptoms can be substantial and have a great impact on the affected person’s wellbeing. Possibilities to seek and find information about health and self-care have significantly increased through internet-based communities, forums, and websites. Still, a considerable number of consultations with general practitioners are for conditions that are potentially self-treatable. Seeking advanced care for minor illnesses is costly for society and can create discomfort for patients as they are down-prioritized at emergency departments.Methods: Study participants were recruited randomly from the Swedish Adress Register. A questionnaire was sent out, and the final sample included 317 randomly selected persons aged 18–80 and living in Sweden.Findings: Having experienced a specific illness correlated with self-reported knowledge. Preferred self-care interventions differed between different conditions, but resting and self-medicating were commonly used, along with consulting health care facilities. Compliance to advice was the highest for official information channels, and family members were a popular source of advice.
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| 9. |
- Häggblad, Hans-åke, et al.
(författare)
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Modelling And Simulation The Cracking Of Green Metal Powder Body
- 2016
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Ingår i: Proceedings World PM2016 Congress. - : European Powder Metallurgy Association. - 9781899072484
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Konferensbidrag (refereegranskat)abstract
- During the ejection stage of the powder metallurgy (PM) pressing process the elastic behaviour is important. Especially, if the in the powder compact is unloaded in a non-beneficially manner crack formation can occur. Experiments show a non-linear and also stress dependent elastic behaviour of green bodies. Calibrated against experimental data, a fracture model controlling the stress versus crack-width relationship is used. The softening rate of the fracture model is obtained from the corresponding rate of the dissipated energy. The model is implemented with a smeared crack approach in a finite element code and tested in simulation of a diametral compression testing. Results from simulations correlates well with experimental results. The smeared crack method combined with a cohesive fracture model is an interesting tool for predicting fracture in powder compacts.
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| 10. |
- Larsson, John Erik, et al.
(författare)
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Paper machine dry line position control
- 1998
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Ingår i: Reglermöte '98. - Lund : Reglerteknik, Lunds tekniska högskola. ; , s. 168-172
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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