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  • 651.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science.
    Intentional Partnerships—Creating New Partnerships: A national and international model2008In: Quality and Safety in Nursing Education: A Clinical Microsystems Approach, Chicago, USA: The Joint Comission , 2008, p. 6-Conference paper (Refereed)
    Abstract [en]

    Since one of the aims of this meeting is to create a strategy for the participants to connect and share experiences post-conference I will start by giving a very brief account of Jönköping University and the School of Health Sciences, this in order to give you a sense of the school as a possible partner for collaboration. Then I will describe how teachers work to increase knowledge with regard to health care improvement within the nursing program. Thereafter I will talk about a research project and relate this to what we can learn about interprofessional education. The basic values regarding health care improvement described by Paul Batalden and his colleagues are central to our present development. We share the theoretical assumptions concerning the Clinical Microsystem and the view of redesigning health care education in order to produce the best care for the patient and his/her family. So within our organization both teachers and students — like nurses — have two jobs, one of which is to bring about improvement. So we have started the process where the educators need to change their teaching for the sake of better patient outcomes, better system performance, and better professional development. This means communicating not only the existing evidence-based knowledge but also improvement knowledge which involves a substantial shift in our idea of the work of health care — a challenging task that can benefit from the use of a wide variety of tools and methods. A key concern for us in the planning of our different programs is that the improvement of knowledge shall permeate the education and contribute to establishing a professional attitude marked by daily inspiration to produce the best care. The basic education involves four stages. First there is an introduction to concepts and models in health care improvement. This content is in the first semester.  Second the students’ are making a personal improvement in their everyday life. The students apply PDSA-cycle for improvement of an issue, commonly their time-table for studies, time spending for eating breakfast in the morning or eating habits in general. The third stage involves evidence-based nursing and systematic literature reviews and in the fourth stage, the students make health care improvements in collaboration with the staff during a clinical training period. The nurses at the clinic formulate the area of improvement. Then the students work systematically in pairs to collect data and the results are reported to the nurses. The latter stage is a new content in nursing education but we know from occupational therapy that the staff appreciated these works and the results were in most cases used by the staff in their job.

     

    The overall aim of the research project “Bridging the gaps” is to generate evidence about the process and outcome of clinical work within the area of quality improvement. The project contributes to an advanced environment for learning and innovation, research and development in the field of health-care management and improvement. There are 14 doctoral students at the research school, who takes part in the research project. Three of them are nurses and doctoral students at the School of Health Sciences. All PhD students have to take two compulsory courses, one is named “Bridging the gaps — a multidisciplinary research field” and the other is named “Interactive Research Methodology”. The Microsystem as a theoretical model is included in the mention research course “Bridging the gaps” and in each doctoral student’s research proposal. The PhD students shall work together with health-care staff by way of an interactive research method. This means that there is an integration of research and practice. The PhD students and the health-care staff are working together throughout the project. The staff is involved at every stage, from designing the improvement work, formulating the research questions to reporting the results. Research with this methodology generates knowledge of great relevance for clinical practice.

  • 652.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Living with Neurological Disorders: Illness Experiences, Coping and Coping Resources.2004In: WENR-conference, 2004Conference paper (Refereed)
  • 653.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science.
    Lära tillsammans: ett rehabiliteringsprogram för personer med avancerad multiple skleros och deras personliga assistenter.1999Report (Other academic)
  • 654.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Mänskliga resurser och empowerment vid kronisk sjukdom.2002In: Kongress Lust & Kunskap, 2002Conference paper (Refereed)
  • 655.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Nursing rehabilitation programme and its effect on patients' coping and quality of life.1997In: 7th Quadrennial Congress, 1997Conference paper (Refereed)
  • 656.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Personal assistance for patients living with a severe neurological disorder.2006In: Journal of Neuroscience Nursing, ISSN 0888-0395, Vol. 38, no 3, p. 183-193Article in journal (Refereed)
    Abstract [en]

    Patients with neurological diseases increasingly are being cared for at home. The purpose of this study was to describe stressful everyday experiences in connection with neurological disorders, to learn how people cope with such experiences, and gain knowledge about coping resources. Twenty-seven persons receiving personal assistance were interviewed twice at home. The 54 interviews were subjected to inductive content analysis. The persons encountered many problems in everyday life and usually handled them by means of acceptance, avoidance, practical problem solving, and reappraisal. Dependence on personal assistance gave rise to a sense of helplessness, but it was also the major coping resource. Nurses can improve home care by giving instruction and guidance to persons working as personal assistants.

  • 657.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Project neuromuscular diseases in Sweden.1989In: EAMDA-kongress., 1989Conference paper (Refereed)
  • 658.
    Ahlström, Gerd
    Jönköping University, School of Health Science.
    Research Outcomes about Coping in Swedish populations: the Ways of Coping Questionnaire (WCQ)2009In: / [ed] Mehdi Ghazinour, Department of social work, Umeå University, Umeå University, 2009, p. 1-Conference paper (Refereed)
    Abstract [en]

    The lecture will present an overview of the development and results from the Swedish version of the WCQ. The process of translation of the original questionnaire into Swedish is described as well as the results of the first Swedish study about coping with illness-related problems in persons with chronic diseases compared with a group healthy subjects. The first findings indicated the importance of further testing of the psychometric properties of the WCQ. Further psychometric evaluation of the WCQ included 510 subjects (patients, their next of kin and students). The result indicated modest support for the 8-factor model and deviation from equality of factor structures among the sub-samples. The 8-factor model was more adequate in describing clinical than non-clinical samples. A modification of the WCQ with a version of 45 items was made based on the results, which is now current in several studies.

  • 659.
    Ahlström, Gerd
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Triangulering och multimetod - i teori och forskningspraktik.1995In: Kongressrapport från Hälso- och Sjukvårdsstämman, 1995Conference paper (Refereed)
  • 660.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Anshelm, Margareta
    Bedömning av livskvalitet vid svåra sjukdomstillstånd - vem har tolkningsföreträde.2001In: Kongressrapport, Nationella forskarskolan i vård och omsorg, 2001Conference paper (Refereed)
  • 661.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Anshelm, Margareta
    Förluster och kronisk sorg vid neurologiska sjukdomstillstånd.2001In: Kongressrapport, Nationella forskarskolan i vård och omsorg, 2001Conference paper (Refereed)
  • 662.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Anshelm, Margareta
    Göra det bästa av det sämsta: rörelsehindrades syn på sin livssituation2000Report (Other academic)
  • 663.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Anshelm, Margareta
    Livskvalitet vid svåra kroniska sjukdomar och skador. Sett ur den funktionshindrades, anhöriges och personliga assistentens synvinkel.2001In: Kongressrapport från Hälso- och Sjukvårdsstämman, 2001Conference paper (Refereed)
  • 664.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Carlsson, Catrin
    Att visa upp sin värld: hur personer med stora varaktiga funktionshinder uppfattar sin livssituation relaterat till de etiska principerna i LSS2002Report (Other academic)
  • 665.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Casco, Marie
    Vara synlig men ändå osynlig: personliga assistenters vardag2000Report (Other academic)
  • 666.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Davidsson, Solveig
    Tre kärnfulla berättelser: Anhörigas uppfattningar om vad assistans innebär för den funktionshindrade och hur de etiska värdegrunderna i LSS tillämpas.2000Report (Other academic)
  • 667.
    Ahlström, Gerd, Gerd
    Jönköping University, School of Health Science. Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science.
    The Development of Nursing in Modern Society2009Conference paper (Other academic)
  • 668.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Gunnarsson, Lars-Gunnar
    Disability and quality of life in individuals with muscular dystrophy.1996In: Scandinavian Journal of Rehabilitation Medicine, ISSN 0036-5505, E-ISSN 1940-2228, Vol. 28, no 3, p. 147-157Article in journal (Refereed)
    Abstract [en]

    In the county of Orebro, Sweden, 32 individuals with myotonic disorders and 25 with other types of muscular dystrophy were examined. Disability was assessed with functional tests and standardized observations of muscle function (mainly based on those proposed by Dr. Brooke), a new self-administered questionnaire regarding the Activities of Daily Living (ADL) and the ADL staircase (based on Katz ADL index). The results of the different tests of disability were highly correlated. The Sickness Impact Profile and the Kaasa test were used for assessing the quality of life, and no significant differences were found between the groups of muscular dystrophy. In an explanatory factor analysis three main factors of disability were found. The factors "walk and move" and "finger function" were fair to good associated with the quality of life. This study offers an approach for research on the consequences of muscular dystrophy using established as well as new methods.

  • 669.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Gunnarsson, Lars-Gunnar
    Intervenering för bättre livskvalitet.1997In: Rapport från forskningskonferensen Människa, handikapp, livsvillkor: Örebro den 9 och 10 april 1997, Örebro: Psykiatri och habilitering, Örebro läns landsting , 1997Conference paper (Refereed)
  • 670.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Gunnarsson, Lars-Gunnar
    Rehabilitering för bättre livskvalitet hos vuxna med muskeldystrofi1997Report (Other academic)
  • 671.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Gunnarsson, Lars-Gunnar
    Kihlgren, Annika
    Arvill, Anders
    Sjödén, Per-Olow
    Respiratory function, electrocardiography and quality of life in individuals with muscular dystrophy.1994In: EAMDA, 1994Conference paper (Refereed)
  • 672.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Gunnarsson, Lars-Gunnar
    Kihlgren, Annika
    Arvill, Anders
    Sjödén, Per-Olow
    Respiratory function, electrocardiography and quality of life in individuals with muscular dystrophy.1994In: Chest, ISSN 0012-3692, E-ISSN 1931-3543, Vol. 106, no 1, p. 173-179Article in journal (Refereed)
    Abstract [en]

    All individuals in a Swedish county afflicted with any type of hereditary muscular dystrophy (MD) were identified and 57 (85 percent) of eligible individuals in the age range 16 to 64 were included in the study. Respiratory disturbances were estimated by means of spirometry and analysis of arterial blood gases, and 58 percent yielded abnormal results on at least one of these examinations. Elevated PCO2 was found more commonly than reduced forced vital capacity (FVC) and there was a moderate association between these parameters. Respiratory symptoms, most commonly breathlessness, were encountered in 79 percent. Pathologic ECG recordings were found in 21 individuals (37 percent). Conduction disturbances and affection of the myocard were most frequent in myotonic dystrophy. Quality of life was assessed by means of the Sickness Impact Profile instrument and the Kaasa test. The results showed that quality of life was significantly related to FVC and to the symptom of abnormal fatigue. Respiratory and cardiac parameters showed a greater number of significant correlations with measures of functional ability than with subjective well-being.

  • 673.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Gunnarsson, Lars-Gunnar
    Leissner, Per
    Sjödén, Per-Olow
    Epidemiology of neuromuscular diseases, including the postpolio sequelae, in a Swedish county.1993In: Neuroepidemiology, ISSN 0251-5350, E-ISSN 1423-0208, Vol. 12, no 5, p. 262-269Article in journal (Refereed)
    Abstract [en]

    The epidemiology of neuromuscular diseases was studied in the county of Orebro, Sweden (study population 270,000). Several different sources of data were utilized, compared and validated. On the prevalence of day (January 1, 1988) 474 patients were identified. The rate per 100,000 population was 92 for the postpolio sequelae (PPS) and 84 for the other neuromuscular diseases (motor neuron disease 9, hereditary neuropathies 9, myoneural disorders 16, myotonic disorders 19, muscular dystrophies 20 and myositis 11). Of the patients with the PPS, 80% reported late-onset symptoms. On the basis of an expanded survey including all medical records in one health care district, the prevalence of the PPS was estimated to be 186/100,000 population.

  • 674.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Hansson, Birgitta
    A model for supporting the patient's coping with chronic illness.2000In: Vård i Norden, ISSN 0107-4083, E-ISSN 1890-4238, Vol. 20, no 3, p. 34-38Article in journal (Refereed)
  • 675.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Karlsson, Ulf
    Disability and quality of life in individuals with postpolio syndrome.2000In: Disability and Rehabilitation, ISSN 0963-8288, E-ISSN 1464-5165, Vol. 22, no 9, p. 416-422Article in journal (Refereed)
    Abstract [en]

    PURPOSE: The purpose of the study is to investigate disability and quality of life in individuals with the characteristic symptoms of postpolio syndrome. METHOD: Disability is assessed by means of the self-report activities of daily living instrument, and quality of life by means of Kaasa's questionnaire and the quality of life profile. RESULTS: The 39 subjects have on average lived with polio sequelae for 52 years. Their main difficulties are with moving, lifting and carrying. This means restricted mobility, sedentary activities and a need to prioritize. Half of them feel that polio has lessened their possibilities in life, and a quarter have still not accepted the limitations polio has involved. Nevertheless the majority report a high level of psychosocial well-being, and almost a quarter say that living with polio has meant personal development and strength. We found a significant correlation between on the one hand disability with regard to ambulation, arm strength and finger strength on the self-report ADL, and on the other hand the number of negative problems on the quality of life profile (0.33-0.45). CONCLUSION: The latter instrument needs further testing before its validity can be determined with certainty.

  • 676.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Klinkert, Pia
    Den svåra balansgången: personliga assistenters möjligheter att tillämpa de etiska värdegrunderna i LSS2001Report (Other academic)
  • 677.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Lindvall, Björn
    Wenneberg, Stig
    Gunnarsson, Lars-Gunnar
    A comprehensive rehabilitation programme tailored to the needs of adults with muscular dystrophy.2006In: Clinical Rehabilitation, ISSN 0269-2155, E-ISSN 1477-0873, Vol. 20, no 2, p. 132-141Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: To assess if activities of daily living (ADL), coping and quality of life could be improved in adults with muscular dystrophy through a comprehensive rehabilitation programme. DESIGN: Quasi-experimental, controlled clinical study comparing patients with similar age and disease aspects. SETTING: Two different counties in Sweden, being either study or control setting. SUBJECTS: The study group comprised 37 adults (21 women, 16 men; mean age 50 years), while the control group comprised 39 people (25 women, 14 men; mean age 46 years). INTERVENTIONS: Four rehabilitation sessions tailored to different medical, physical and psychosocial needs of the patients, comprising a total of 10 days over a period of 18 months. MAIN MEASURES: ADL, the Mental Adjustment to Cancer Scale measuring coping strategies, the Sickness Impact Profile measuring health-related quality of life, the Hospital Anxiety and Depression Scale, and the Psychosocial Well-being Questionnaire. RESULTS: No significant differences were found between groups with regard to the outcome measures. There was increased dependence on others in ADL after 18 months in both groups, but it was more pronounced in the control group. Furthermore, a clear trend was observed in the data with regard to coping patterns, the control group using more coping strategies such as 'Helplessness/hopelessness' (P= 0.057), 'Anxious preoccupation' (P = 0.085) and 'Fatalistic' (P= 0.073) when being compared to the study group. CONCLUSIONS: No apparent effects on ADL were found from the rehabilitation programme, although there was a tendency of reduction of maladaptive coping patterns in the study group. This initial study may provide the rationale and basis for a randomized controlled trial.

  • 678.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Sjöden, Per-Olow
    Coping with illness-related problems and quality of life in adult individuals with muscular dystrophy.1996In: Journal of Psychosomatic Research, ISSN 0022-3999, E-ISSN 1879-1360, Vol. 41, no 4, p. 365-376Article in journal (Refereed)
    Abstract [en]

    Illness-related problems and coping were examined in 60 individuals with muscular dystrophy (MD) identified in a population survey of the county of Orebro, Sweden. In addition, the extent to which coping is related to quality of life (QoL) was investigated as was the impact of impairment and disability on the relation between coping and QoL. Emotion/appraisal-focused coping was utilized by respondents more than twice as often as problem-focused coping. High QoL was significantly correlated to "Stoic acceptance" and "Tried alternative treatment." Low QoL was associated with "Helpless/hopeless," "Anxious preoccupation," "Minimization," "Social comparison," "Establishment of control over everyday life," "Performs the task with the aid of an appliance" and "Accepts help or leaves it to others." When measures of impairment and disability were included in the analysis, the impact of these measures explained the association between coping and physical QoL by 16% to 43%.

  • 679.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Sjödén, Per-Olow
    Assessment of coping with muscular dystrophy: a methodological evaluation.1994In: Journal of Advanced Nursing, ISSN 0309-2402, E-ISSN 1365-2648, Vol. 20, no 2, p. 314-323Article in journal (Refereed)
    Abstract [en]

    There is no published research on coping with muscular dystrophy among adults. In the present study, two questionnaires, the Reaction to the Diagnosis of Cancer Questionnaire (RDCQ) and the Mental Adjustment to Cancer scale (MAC), were modified in order to measure coping with muscular dystrophy (MD). A total of 60 people (16-64 years) with diagnosed MD answered the questionnaires in two interviews including semi-structured questions. The replies to these questions were analysed by two independent judges on the basis of the RDCQ and MAC categories for coping. The purpose was twofold: to investigate if cancer-coping categories could be used for the classification of interview answers concerning coping with MD, and to gain knowledge about specific coping with MD. Analysis indicated that 82% of replies to semi-structured questions concerned with emotion/appraisal-focused coping with MD can be described by means of RDCQ and MAC categories. Eight new categories were developed to classify the remaining 18%: Anticipation, Creation of new life values, Minimization, Establishment of control over everyday life, Secretiveness, Fear, Social comparison and Coping with heredity. In addition, 997 replies were classified to represent problem-focused coping. The judges reached good agreement with respect to the proportions of replies in the respective coping categories. However, kappa (kappa) values were within the range of fair to good agreement.

  • 680.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Sjödén, Per-Olow
    Coping with Muscular Dystrophy: manual for analysis and categorizing of coping from interview data.1993Other (Other scientific)
  • 681.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Sundmark, Gunvor
    Wetterstrand, Johanna
    Upplevelser av att arbeta som personlig assistent.2001Report (Other academic)
  • 682.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Tang, Ping Fen
    Wadensten, Barbro
    Johansson, Camilla
    Wenneberg, Stig
    Workplace Distress and Ethical Dilemmas in Neuroscience Nursing: A qualitative study of Chinese nurses’ experience.2007In: 8th Quadrennial Congress of The European Association of Neuroscience Nurses (EANN), 2007Conference paper (Refereed)
  • 683.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Wadensten, Barbro
    Uppsala University.
    Encounters in close care relations from the perspective of personal assistants working with persons with severe disablility.2010In: Health & Social Care in the Community, ISSN 0966-0410, E-ISSN 1365-2524, Vol. 18, no 2, p. 180-188Article in journal (Refereed)
    Abstract [en]

    Abstract In Sweden adults with major and sustainable disabilities can be granted publicly financed support in the form of personal assistance after assessment and decision-making in accordance with government rules. The purpose of the present study was to explore more deeply the encounters in close care relations between personal assistants and disabled persons of working age, as well as the prerequisites for and obstacles to the success of such encounters, this from the perspective of the personal assistants. Thirty-two personal assistants (22- to 55-year old) who worked for 32 persons with serious neurological diseases living at home were interviewed. The transcribed unstructured interviews were qualitatively analysed using latent content analysis. The analyses resulted in five main themes: Perceptive awareness, Entering into the other's role, Mutuality, Handling the relationship and Personal difficulties facing the assistant. These themes illustrated that a prerequisite for the encounter's being meaningful is that the assistant should be able to observe and understand the unique needs of the disabled person. The assistant must furthermore be able to put herself/himself into the other person's position. It is also important that the personal chemistry between the assistant and the disabled person should be good. Being able to share feelings and interests with the functionally impaired person provides the assistant with positive emotional confirmation of a good relationship. A distressing dilemma the assistant faces is that of distinguishing between the working relationship and the personal friendship. In this borderline area are found experiences, feelings and events that the assistant may view as negative or even unacceptable. This study contributes to the understanding of the complexity underlying the daily community care of disabled persons with an extensive need for care and assistance.

  • 684.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. Quality improvements, innovations and leadership in health care and social work.
    Wenneberg, Stig
    Coping with illness-related problems in persons with progressive muscular diseases: the Swedish version of the Ways of Coping Questionnaire.2002In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 16, no 4, p. 368-375Article in journal (Refereed)
    Abstract [en]

    One of the most widely used self-assessment inventories of coping is the Ways of Coping Questionnaire. The aims of the study were to describe coping with illness-related problems in persons with muscular diseases and to investigate the influence of demographic variables. Also, the reliability of the Swedish version of the Ways of Coping Questionnaire was to be evaluated. Forty-four persons with muscular dystrophy and 32 persons with postpolio syndrome, along with a comparison group of 214 students, completed the questionnaire. The findings of this study show that there are some different coping patterns in students as compared with persons with chronic disease. The coping strategy Distancing was used more and the strategy Accepting Responsibility used less frequently in the chronic disease groups and may be an expression of the inevitable physical limitations caused by the progressiveness of muscular dystrophy and postpolio syndrome. Furthermore, persons with muscular dystrophy also used less problem-focused coping in the form of Confrontive Coping and Planful Problem Solving when compared with the postpolio and student groups. In addition, women in the three groups employed the strategy of Seeking Social Support more often than did men. Regarding the psychometric properties of the Swedish version of the Ways of Coping Questionnaire, internal consistency was acceptable for the total score, but lower and not acceptable for several of the subscales. In the student group, but not in the chronic disease groups, there were low correlations between subscales, which indicate discriminative ability. More research is necessary to further investigate the reliability and validity of the Swedish version of the Ways of Coping Questionnaire before this instrument can be used routinely to assess coping patterns in patients with chronic disease.

  • 685.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Wenneberg, Stig
    Komplementära hälsometoder för patienter med kronisk sjukdom.2001In: Kongressrapport, Nationella forskarskolan i vård och omsorg, 2001Conference paper (Refereed)
  • 686.
    Ahlström, Gerd
    et al.
    Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. HHJ. Quality improvements, innovations and leadership in health care and social work.
    Wideheim, Ann-Kristin
    Leva med hjärntumör i ett familjeperspektiv.2001In: Kongressrapport, Nationella forskarskolan i vård och omsorg, 2001Conference paper (Refereed)
  • 687. Ahlström, Johan
    et al.
    Nordström, Edward
    PSQS – Power Supply Quality Simulator2008Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    Kitron had wishes to be able to test and measure how disturbance affects their vehicle electronic units before they have been verified by SP Technical Research Institute of Sweden in Borås. This work started with the writing of a demand specification together with Kitron for a product PSQS, Power Supply Quality Simulator, which can generate some test pulses according to a standard for electronic units to Volvos vehicles. A design proposal was developed with the help the demand specification and was verified with the help of simulations. All electric schematics was designed with the guide of the design proposal. The pulses realized in the works of this thesis are those which Kitron experienced that they have a need to test in their own premises and which are possible to generate with the means available. All work took place at Kitron in Jönköping, the restriction of the work has been the cost of components not to be to high as well as the finished product shall be easily managed. This thesis work resulted in a unit which is possible to produce a number of disturbances on the voltage feed to a unit under test. Some pulses have not been completely correct according to Volvos standard. There are large possibilities to further develop PSQS to a unit that follows Volvos standard and even other vehicle producer’s standards.

  • 688.
    Ahlström, Lina
    et al.
    Jönköping University. Jönköping University, Jönköping International Business School, JIBS, Commercial Law.
    Roos, Erika
    Jönköping University. Jönköping University, Jönköping International Business School, JIBS, Commercial Law.
    Åtgärder mot koncernintern skatteplanering genom ränteupplägg2009Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Från och med den 1 januari 2009 tillämpas nya regler om ränteavdragsbegränsning inom intressegemenskaper för att motverka skatteplanering genom ränteupplägg. Denna form av skatteplanering sker eftersom det finns luckor i lagstiftningen vilket bolagen kan utnyttja. Vid konstlade ränteupplägg använder sig koncernen av verktyg som är godkända inom ramen för gällande rätt. Exempel på sådana verktyg är den obegränsade avdragsrätten för ränteutgifter, koncernbidragsreglerna samt att utdelning och kapitalvinst vid avyttring av näringsbetingade andelar är undantaget från beskattning. Genom koncerninterna transaktioner används ovan nämnda materiella regler i syfte att uppnå skattefördelar på koncernnivå. Transaktionerna är legitima inom ramen för gällande rätt. Effekten av skattefördelen som uppkommer genom transaktionerna är dock inte önskvärd, då den urholkar den svenska skattebasen och äventyrar skattesystemets legitimitet.

    Införandet av de nya reglerna om ränteavdragsbegränsning inom intressegemenskaper avser att hindra konstlade ränteupplägg där företag i intressegemenskaper utnyttjar den obegränsade avdragsrätten för ränteutgifter i syfte att uppnå skattefördelar. Motsvarande ränteintäkt redovisas i ett bolag beläget i en lågskattejurisdiktion, i ett skattesubjekt som är undantaget från skatteplikt eller i ett subjekt med särskild skattestatus.

    Regeringsrättens avgörande i domarna mot Industrivärden väckte stor uppmärksamhet, där domstolen fann att skatteflyktslagen inte kunde tillämpas för att neka ett bolag rätten till ränteavdrag. I målen hade koncernen skapat ett skuldförhållande genom koncerninterna transaktioner där transaktionernas enda syftet var att uppnå skattefördelar. För att förhindra denna typ av skatteplanering och på så sätt komma åt de skatteintäkter som staten går miste infördes därmed nya regler om ränteavdragsbegränsning. De nya reglerna som införts ska begränsa möjligheten att få avdrag för ränteutgifter vid interna förvärv av delägarrätter där koncerninterna lån bildas genom exempelvis omstrukturering. Från huvudregeln finns dock två undantag. Enligt det första undantaget är avdrag för ränteutgifter tillåtet om motsvarande ränteintäkt skulle ha beskattats med 10 procent, enligt lagstiftningen i den stat där det bolag inom intressegemenskapen som faktiskt har rätt till ränteinkomsten hör hemma. Detta om bolaget bara skulle ha haft den inkomsten. Den andra undantagsregeln innebär att avdrag för ränteutgifter får göras om såväl skulden som förvärvet som ligger till grund för ränteutgifterna är huvudsakligen affärsmässigt motiverade

    Vid införandet av sådana regler bör hänsyn tas till vad som är grundproblematiken. I och med Regeringsrättens avgörande har det fastställs att skatteflyktslagen inte kan tillämpas på uppenbara fall av kringgåenden där syftet varit att uppnå skattefördelar. Inledningsvis bör därmed skatteflyktslagens utformning och tillämplighet ifrågasättas. Skatteflyktslagens syfte är att hindra skatteflykt i detta avseende, vilket dess nuvarande utformning uppenbarligen misslyckats med. Detta trots reglernas generella utformning. Skatteflyktslagens nuvarande utformning kan därmed anses vara tandlös, åtminstone vid vissa fall av skatteplanering. Då grundproblematiken ligger i den utformning som skatteflyktslagen har torde det vara denna lagstiftning som i första hand ska vara föremål för överseende.

    De nya reglerna om ränteavdragsbegränsning inom intressegemenskaper får anses vara vaga, vilket resulterar i tolknings- och tillämpningsproblem. Därigenom blir det återigen upp till rättstillämparna att utreda och avgöra huruvida förfarandet anses stå i strid med gällande rätt. Vidare kan ifrågasättas om regleringens utformning kommer att verka som ett hinder för transaktioner som är företagsekonomisk motiverade och därigenom öppnar upp för ny problematik.

    Andra åtgärder såsom underkapitaliseringsregler, CFC-lagstiftning och källskatt på räntebetalningar har utretts som alternativa regler mot konstlade ränteupplägg. Ingen av dessa regler anses dock vara en bättre åtgärd mot konstlade ränteupplägg i detta avseende.

    Att införa någon form av ränteavdragsbegränsning i kombination med översyn av skatteflyktslagen torde dock vara en motiverad åtgärd mot konstlade ränteupplägg, men då i en mer genomtänkt regelkonstruktion.

  • 689.
    Ahlström, Selin
    et al.
    Jönköping University, School of Health and Welfare.
    Svensson, Helena
    Jönköping University, School of Health and Welfare.
    Frisktandvård: En enkätstudie om tandvårdsanställdas attityder och avtalshantering2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Prepaid dental care - a questionnaire on dentalstaff attitudes and contract management

     

    Abstract

    Background: In order to get young people to maintain a continued regular contact with dental care, after they are regarded as paying adults, prepaid dental care was introduced in Västra Götaland in 2007. Prepaid dental care is a payment model in which patients pay a specific amount for their dental care over a three-year period, monthly or annually. Since prepaid dental care is a major part of the daily work in public dental care, it is important to examine the dental staff's attitudes to this payment model.  Purpose: The purpose of this study was to investigate the dental staff's handling of prepaid dental care and their attitudes regarding this payment model in the Public Dental Service in Region Kalmar County. Method: A questionnaire study based on a quantitative approach with certain issues analysed by qualitative method was performed. Surveys were sent to all employees at all 18 general dental clinics belonging to Region Kalmar County Public dental service. In total 133 employees answered the questionnaire.  Result: Respondents generally had a positive view on prepaid dental care. Regarded as positive was for example the opportunity of regular individualized treatment independent of costs. The main drawback, according to the respondents, was that patients who do not have prepaid dental care are not given any priority for being summoned for examination. Most respondents offer contracts to the majority of the patients and regardless of the price class. Conclusion: Prepaid dental care was considered positive, favouring both the clinic and the patients who chose this payment model. Although it should be taken into consideration that patients without prepaid dental care are not prioritised to be summoned for treatment compared to patients with prepaid dental care. The majority of the respondents are in agreement that prepaid dental care can impair the care situation of patients without contract.  

     

    Keywords: Dental Insurance payment, Dental staff, Prepaid dental care, R2, Region Kalmar Län

     

  • 690.
    Ahlén, Kristoffer
    et al.
    Jönköping University, Jönköping International Business School, JIBS, EMM (Entrepreneurship, Marketing, Management).
    Benjaminsson, Erik
    Jönköping University, Jönköping International Business School, JIBS, EMM (Entrepreneurship, Marketing, Management).
    Hedegärd, Jesper
    Jönköping University, Jönköping International Business School, JIBS, EMM (Entrepreneurship, Marketing, Management).
    Improving the Order Receiving Process: Case Study: Ekmans AB2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose

    The purpose of the thesis is to identify problems cooperating departments suffer from, create solutions and discover ways to successfully implement the changes. A case study of Ekmans AB has been conducted to accomplish this.

    Background

    In today’s business world competition is fiercer than ever. New companies enter the market and new technologies and working methods are introduced which requires the companies to work proactivelyto foresee opportunities. But even if the companies are aware of all these external factors, they also need to look internally to see what they can improve and make more efficient in order to stay competitive. Therefore, it is important for companies to be ready to change both structure and culture to be more efficient.

    Method

    The method is based on a qualitative approach with semi-structuredi nterviews. A total of 20 interviews were conducted. The interviewees possess different positions within the company, ranging from the top management down through the organizational hierarchy.

    Conclusion

    The study shows that problems can arise from miscommunication, outdated ways of handling order receiving and a poorly chosen organizational structure. To solve these problems companies has to realize the importance of change. When modification the organizationa company has to take the organizational culture into consideration. It is important that the employees feel that they are a part of the change instead of just seeing it from sideline. Moreover, the management has to make sure they are thoroughly in their work regarding change; they have to follow up each alteration to make sure that it is actually implemented. Moreover, standardization is the key for organizations wishing improve and become more efficient. The result of the study showed that it is first when these criterions are fulfilled that the company can expect to successfully implement changes.

  • 691.
    Ahmad, Bilal
    et al.
    Jönköping University, Jönköping International Business School, JIBS, Business Administration.
    Hemphoom, Sunisa
    Jönköping University, Jönköping International Business School, JIBS, Business Administration.
    Family Firms and Clean Technologies: A qualitative study exploring how a firm’s ownership status influences implementation of clean technologies2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Background: Sustainability practices have become a crucial factor for firms since there are external and internal pressures that expect firms to act environmentally friendly. Especially within organizations that are owned by family, being sustainable enables them to pass their firm in a good condition to the next generation. One way firms can be sustainable is through adopting clean technology strategy as it can provide both environmental and economic benefits to firms. Being sustainable and having the ability to implement clean technology requires a long-term vision or long-term orientation (LTO); a characteristic often associated with family-controlled businesses (FCBs).

    Purpose: The purpose is to examine the adoption of clean technology within family-controlled firms (FCBs) and non-family-controlled firms (Non-FCBs). The aim is to explore if there are certain characteristics of FCBs that facilitate implementation of clean technologies.

    Method: This research is based on qualitative research method with an abductive approach and interpretivism philosophy. The primary data is collected through semi-structured interviews with four companies of which three are family-controlled businesses and one is a non-family- controlled business.

    Conclusion: FCBs are more inclined to invest in clean technologies. The extent to which a company does or does not implement clean technologies depends not only on the institutional values of an organization but also how deeply one or more of the three LTO dimensions are implanted in those values.

  • 692.
    Ahmad, Hanna
    et al.
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Asmelash, Simon
    Jönköping University, School of Engineering, JTH, Computer Science and Informatics.
    Business Intelligence: Framtagning av kriterier innan val av BI-system för mindre företag2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of this thesis was to investigate which criteria that are vital before the choice of BI-system for small companies with 10-30 employees. Furthermore, to find an appropriate BI-tool that is applicable for small companies with 10-30 employees.

     

    Method – The authors have used semi-structured interviews and literature studies. The qualitative interviews have been conducted by interviewing BI-experts from five smaller companies. The literature review consisted of scientific articles, course literature, and relevant web-pages.

     

    Findings – The findings of this thesis are a production of criteria and a proposal on BI-tool, in the choice of BI-system for smaller companies with 10-30 employees.

     

    Implications – The produced findings of this thesis indicate that there are gaps in what are essential to think of, before a future investment of a BI-system that is suitable for smaller companies with 10-30 employees. Furthermore, there is limited research about which BI-tool that is appropriate for smaller companies with 10-30 employees. This thesis is directed towards smaller companies that are interested in acquiring a BI-system to their organization.

     

    Limitations – This thesis was limited by time constraints, that is why the authors remained their focus on companies with 10-30 employees.

     

    Keywords – Business Intelligence, decision-making, criteria, smaller companies, system.

  • 693.
    Ahmad, Rojin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Selmani, Antigona
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Arbetsmotivationens påverkan på kvaliteten på flerbostadshus2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Several studies show that work motivation in a workplace affects the individual's ability to perform and this may result in construction errors such as unnecessary economical costs and additional work hours. The aim of this study is to investigate the link between construction errors and work motivation as well as its impact on the quality of an apartment building. Method: To complete the objective of this study literature studies, questionnaires and interviews were conducted. The literature study includes scientific articles, doctoral dissertations and encyclopedias. These are taken from, among other things, the university library databases. The surveys consist of 21 questions based on Herzberg's two-factor theory. The interviews are semi-structured and the questions are based on the results of the survey. Findings: The results show that the link between work motivation and construction errors depends on knowledge, experience, commitment, stress and time shortage, communication, chord, salary, benefits and lack of leadership. In the construction companies that were included in this study, there is a lack of motivation among professionals, and the reasons for this are mainly due to benefits from the company and chord wages. The building-related consequences that result from motivation decline prove to be economical and time-consuming. The economic consequences show huge error costs. The time suggests that errors and shortcomings in homes lead to additional working hours in order to correct the errors that occurred during the production period. Restrictions: The study includes ongoing housing projects in Jönköping where supervisors and occupational workers are current. Question one is generally answered when it is not considered corporate, as is the last question. Issue two, on the other hand, only applies to these investigated projects.

  • 694.
    Ahmadi Khanehsaz, Kathayan
    Jönköping University, School of Health and Welfare, HHJ, Dep. of Nursing Science.
    Distriktssköterskors erfarenheter av att hantera barns rädsla i samband med vaccination2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 695.
    Ahmadi, Najib
    Jönköping University, School of Engineering, JTH, Mechanical Engineering.
    Investigation of the tensile strength in pearlitic lamellar graphite iron2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Lamellar cast iron is a very important technical alloy and the most used material in the casting production especially in the automotive industry which is the major customer. There are many factors such as chemical composition, metallurgical condition and melt treatment that are effecting on the size, morphology and distribution of microstructure features of the lamella graphite iron which in turn this features effecting the material’s mechanical properties and tensile behaviour under static load.

    In the past few years many researchers have been done different investigation within improvement of mechanical behaviour in the lamellar graphite iron. Controlling the solidification rate, changing the chemical composition and using different carbon content in the melt are some of the research that have been carried out in last years. Swerea/ Swecast in Jönköping has been involved in many of previous researches. The present work is part of the previous investigation that have been carried out in the Swecast/Swerea.

    The aim of this work was to investigate the effect of different cooling rate on the microstructure parameters and furthermore how this parameters influence the ultimate tensile strength (UTS) in the lamellar graphite iron. To increase the understanding of cooling rates effect on the material properties, in this work the chemical composition and carbon content was equal in the all of the samples.

    The collected data that are based on the morphological data of the solidification structure (dendritic network, eutectic cells) and the eutectoid transformation structure (pearlite) have been correlated to the measured tensile strength. The final purpose of this work was to develop a generic model for the prediction of the tensile strength in lamellar graphite iron which has been presented in the result chapters.

    The question that have been answered in this work based on the following points.

     How the cooling rate influences the development of primary austenite phase and those effect on the UTS?

     How the pearlite interlamellar spacing develops during the different cooling rate and influencing the UTS?

     How the different cooling rates influence the size and amount of the eutectic cell and according to this how the UTS varies?

    The work has been carried out according to the time plane (see appendix 6) and the result of this work showed that cooling rate has an essential effect on the microstructure features. By controlling the cooling rate, the material strength improves significantly.

  • 696.
    Ahmadkhani, Ali
    Jönköping University, Jönköping International Business School, JIBS, Centre of Logistics and Supply Chain Management (CeLS).
    Reverse side of logistics in automotive industry2017Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The third party logistics (3PL) providers play remarkable function in the business world of today’s; therefore, to investigate their challenges will be a valuable study. This study has investigated the challenges and ways to manage these challenges by a 3PL provide company. The achieved results are in coordination with the literature to some extent.The most important challenges are cost, flexibility, professionalism, and quality ofservices. In managing the 3PL challenges, theoretical views mostly tend to apply distinguished approaches, tools and algorithms. Meanwhile, in the case study, it has not introduced any specific approaches or algorithm, but mostly proposed the traditional approaches, such as doing researches and investigations, or Motivation Management. 

  • 697.
    Ahmadkhaniha, Donya
    et al.
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Eriksson, Fredrik
    Linkopings universitet, Department of Physics, Linkoping, Sweden.
    Leisner, Peter
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing. RISE Research Institute of Sweden, Borås, Sweden.
    Zanella, Caterina
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Effect of SiC particle size and heat-treatment on microhardness and corrosion resistance of NiP electrodeposited coatings2018In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 769, p. 1080-1087Article in journal (Refereed)
    Abstract [en]

    Electrodeposition of NiP composite coatings with nano and sub-micron sized SiC has been carried out to investigate the possibility of replacing hard chromium coatings. The composition and structure of the coatings were evaluated by energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis, respectively. Microhardness was measured by Vickers indentation and polarization measurements were carried out to study the corrosion behavior of the coatings. The results showed that submicron particles can be codeposited with a higher content as compared to nano sized ones. However, even if a smaller amount of the nano-sized SiC particles are incorporated in the coating, the contribution to an increasing microhardness was comparable with the submicron sized particles, which can be related to the higher density of codeposited particles. SiC particles did not change the anodic polarization behavior of NiP coatings in a 3.5% NaCl solution. Finally, the effect of heat-treatment on the coatings properties at 400 °C for 1 h was studied to investigate the contribution of particles and heat-treatment on hardness and corrosion properties. It was found that the heat-treatment doubled the microhardness and changed the anodic polarization behavior of the coatings from passive to active with respect to the as-plated conditions.

    The full text will be freely available from 2020-08-04 00:00
  • 698.
    Ahmadkhaniha, Donya
    et al.
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Huang, Y.
    University of Southampton, Southampton, UK.
    Jaskari, M.
    University of Oulu, Nivala, Finland.
    Järvenpää, A.
    University of Oulu, Nivala, Finland.
    Heydarzadeh Sohi, M.
    University of Tehran, Tehran, Iran.
    Zanella, Caterina
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Karjalainen, L.P.
    University of Oulu, Oulu, Finland.
    Langdon, T.G.
    University of Southampton, Southampton, UK..
    Effect of high-pressure torsion on microstructure, mechanical properties and corrosion resistance of cast pure Mg2017Conference paper (Refereed)
    Abstract [en]

    High-pressure torsion (HPT) processing was applied to cast pure Mg pieces and its effects on microstructure, hardness and tensile properties as well as corrosion resistance were evaluated. The microstructure of the processed samples was examined by electron backscatter diffraction (EBSD) and the mechanical properties were determined by microhardness and tensile tests. Corrosion resistance of the samples was studied via electrochemical impedance spectroscopy (EIS) in 3.5% NaCl solution. The results showed that HPT refined the grain size of Mg very effectively from millimeters in the cast structure to a few micrometers homogeneously through the thickness and created a basal texture on the surface. One or five turns of HPT produced no significant difference in the grain size of the processed Mg but the hardness was a maximum after one turn. The yield strength of the cast Mg was increased by seven times whereas the corrosion resistance was not affected by the HPT processing.

  • 699.
    Ahmadkhaniha, Donya
    et al.
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Huang, Yi
    Materials Research Group, Department of Mechanical Engineering, University of Southampton, Southampton, United Kingdom.
    Jaskari, Matias
    Kerttu Saalasti Institute, University of Oulu, Nivala, Finland.
    Järvenpää, Antti
    Kerttu Saalasti Institute, University of Oulu, Nivala, Finland.
    Sohi, Mahmoud Heydarzadeh
    School of Metallurgy and Materials, College of Engineering, University of Tehran, Tehran, Iran.
    Zanella, Caterina
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Karjalainen, L. Pentti
    Centre for Advanced Steels Research, University of Oulu, Oulu, Finland.
    Langdon, Terence G.
    Materials Research Group, Department of Mechanical Engineering, University of Southampton, Southampton, United Kingdom.
    Effect of high-pressure torsion on microstructure, mechanical properties and corrosion resistance of cast pure Mg2018In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 53, no 24, p. 16585-16597Article in journal (Refereed)
    Abstract [en]

    High-pressure torsion (HPT) processing was applied to cast pure magnesium, and the effects of the deformation on the microstructure, hardness, tensile properties and corrosion resistance were evaluated. The microstructures of the processed samples were examined by electron backscatter diffraction, and the mechanical properties were determined by Vickers hardness and tensile testing. The corrosion resistance was studied using electrochemical impedance spectroscopy in a 3.5% NaCl solution. The results show that HPT processing effectively refines the grain size of Mg from millimeters in the cast structure to a few micrometers after processing and also creates a basal texture on the surface. It was found that one or five turns of HPT produced no significant difference in the grain size of the processed Mg and the hardness was a maximum after one turn due to recovery in some grains. Measurements showed that the yield strength of the cast Mg increased by about seven times whereas the corrosion resistance was not significantly affected by the HPT processing. 

  • 700.
    Ahmadkhaniha, Donya
    et al.
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Pinate, Santiago
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Leisner, Peter
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing. RISE Research Institute of Sweden, Borås.
    Zanella, Caterina
    Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
    Electrodeposition of Ni high P composite coatings containing nano and submicro ceramic particles2017Conference paper (Other academic)
    Abstract [en]

    In this study, electrodeposition of Ni-P composite coatings has been carried out to investigate the possibility of replacing hard chromium coatings. Therefore, electrodeposition of Ni-P based composite coating with different SiC particle size (50 nm, 100 nm and 500 nm) or B4C (500 nm) was performed. The coating’s composition was evaluated by energy dispersive spectroscopy (EDS), microhardness of the coatings was measured by Vickers indentor and polarization measurements were carried out to study the corrosion behavior of the coatings. The results showed that B4C particles can codeposit in higher percent respect to SiC ones. Ceramic particles increased microhardness of Ni-P coatings to 700HV0.01. The polarization behavior of all the coatings in 3.5% NaCl was similar in as plated state proving that particles did not hindered the passive behaviour. Finally, the effect of heat-treatment (at 400 ºC for 1 hour) on the coating’s properties was studied to compare the contribution of particles and heat-treatment on mechanical and corrosion properties of the coatings. Heat-treatment increased the coating’s microhardness and changed the anodic polarization behavior of the coatings respect to the as plated conditions.

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