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Sökning: db:Swepub > Örebro universitet > Mälardalens högskola

  • Resultat 1-10 av 209
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  • Agnew, L., et al. (författare)
  • 2015
  • Ingår i: Journal of Rehabilitation Medicine. - Foundation for Rehabilitation Information. - 1650-1977. ; 47:6, s. 546-551
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To investigate the factors related to self-perceived work ability in patients with chronic whiplash-associated disorder grades II-III. Design: Cross-sectional analysis. Patients: A total of 166 working age patients with chronic whiplash-associated disorder. Methods: A comprehensive survey collected data on work ability (using the Work Ability Index); demographic, psychosocial, personal, work- and condition-related factors. Forward, stepwise regression modelling was used to assess the factors related to work ability. Results: The proportion of patients in each work ability category were as follows: poor (12.7%); moderate (39.8%); good (38.5%); excellent (9%). Seven factors explained 65% (adjusted R-2 = 0.65, p less than 0.01) of the variance in work ability. In descending order of strength of association, these factors are: greater neck disability due to pain; reduced self-rated health status and health-related quality of life; increased frequency of concentration problems; poor workplace satisfaction; lower self-efficacy for performing daily tasks; and greater work-related stress. Conclusion: Condition-specific and psychosocial factors are associated with self-perceived work ability of individuals with chronic whiplash-associated disorder.
  • Ahmed, Mobyen Uddin, et al. (författare)
  • A case-based patient identification system using pulseoximeter and a personalized health profile
  • 2012
  • Konferensbidrag (refereegranskat)abstract
    • This paper proposes a case-based system framework in order to identify patient using their health parameters taken with physiological sensors. It combines a personalized health profiling protocol with a Case-Based Reasoning (CBR) approach. The personalized health profiling helps to determine a number of individual parameters which are important inputs for a clinician to make the final diagnosis and treatment plan. The proposed system uses a pulse oximeter that measures pulse rate and blood oxygen saturation. The measurements are taken through an android application in a smart phone which is connected with the pulseoximeter and bluetooth communication. The CBR approach helps clinicians to make a diagnosis, classification and treatment plan by retrieving the most similar previous case. The case may also be used to follow the treatment progress. Here, the cases are formulated with person’s contextual information and extracted features from sensor signal measurements. The features are extracted considering three domain analysis:1) time domain features using statistical measurement, 2) frequency domain features applying Fast Fourier Transform (FFT), and 3) time-frequency domain features applying Discrete Wavelet Transform (DWT). The initial result is acceptable that shows the advancement of the system while combining the personalized health profiling together with CBR.
  • Ahmed, Mobyen Uddin, et al. (författare)
  • Health monitoring for elderly an application using case-based reasoning and cluster analysis
  • 2013
  • Ingår i: ISRN Artificial Intelligence. - 2090-7435. ; 2013:2013, s. 1-11
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper presents a framework to process and analyze data from a pulse oximeter which measures pulse rate and blood oxygen saturation from a set of individuals remotely. Using case-based reasoning (CBR) as the backbone to the framework, records are analyzed and categorized according to how well they are similar. Record collection has been performed using a personalized health profiling approach where participants wore a pulse oximeter sensor for a fixed period of time and performed specific activities for pre-determined intervals. Using a variety of feature extraction in time, frequency and time-frequency domains, and data processing techniques, the data is fed into a CBR system which retrieves most similar cases and generates alarm and flag according to the case outcomes. The system has been compared with an expert's classification and 90% match is achieved between the expert's and CBR classification. Again, considering the clustered measurements the CBR approach classifies 93% correctly both for the pulse rate and oxygen saturation. Along with the proposed methodology, this paper provides a basis for which the system can be used in analysis of continuous health monitoring and be used as a suitable method as in home/remote monitoring systems.
  • Ahmed, Mobyen Uddin, et al. (författare)
  • Physical Activity Classification for Elderly based on Pulse Rate
  • 2013
  • Konferensbidrag (refereegranskat)abstract
    • Physical activity is one of the key components for elderly in order to be actively ageing. However, it is difficult to differentiate and identify the body movement and actual physical activity using only accelerometer measurement. Therefore, this paper presents an application of case-based retrieval classification scheme to classify the physical activity of elderly based on pulse rate measurements. Here, case-based retrieval approach used the features extracted from both time and frequency domain. The evaluation result shows the best accuracy performance while considering the combination of time and frequency domain features. According to the evaluation result while considering the control measurements, the sensitivity, specificity and overall accuracy are achieved as 95%, 96% and 96% respectively. Considering the test dataset, the system was succeeded to identify 13 physical activities out of 16 i.e. the percentage of the correctness was 81%.
  • Almqvist, Lena (författare)
  • Children's health and developmental delay positive functioning in every-day life
  • 2006
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • The general aim of this thesis was to gain understanding of what patterns of child and environment characteristics that promote and sustain health and positive functioning of children with and without developmental delay or disabilities. The focus was on promotion of strengths and competencies rather than on prevention of risk factors, with an emphasis on children’s functioning in every-day life. Both cross-sectional and longitudinal studies were conducted on representative samples of children. In Study I, participation in school activities were used as an outcome of positive functioning of children with disabilities. The findings indicated that autonomy, locus of control, child-peer interaction, and availability of activities were most influential in relation to participation in a pattern of child and environment factors. No significant difference was found across groups in type and degree of disability. Study II was conducted to gain knowledge of how young children perceive health. The interviews revealed that children perceived health in a multidimensional perspective, well represented by the health dimensions of ICF. The children largely related consequences of health to engagement. In Study III, engagement was used as an outcome of children’s interaction with their natural environment. The focus was to describe how children with and without developmental delay, divided into homogenous groups according to a pattern of child-environment interaction factors, engaged in developmentally appropriate behavior in their preschool and home environment. Groups of children with different patterns showed similar outcomes of engagement. Children with developmental delay were represented across groups, implying that developmental delay was less of a factor by itself influencing level of engagement. Study IV was longitudinal and the aim was to identify pathways of children’s engagement over time of children with and without developmental delay. Child-peer interaction seemed to promote high level engagement, while developmental delay only showed to be influential of low level engagement over time if combined with behavior problems. Children without developmental delay or behavior problems were met with greater teacher responsiveness, and at the same time teacher responsiveness predicted stable patterns of high level engagement or change to higher level engagement over time. The general finding in this thesis supported a both a multidimensional perspective of health and positive functioning, in where developmental delay and disability is viewed as a function of child and environmental characteristics. The results are discussed in a systemic perspective, in where the role of the delay or disability, as of other factors related to health and positive functioning in the whole child-environment system is determined by a multitude of factors. The dynamic character of children’s development makes it difficult to predict children’s future functioning, from isolated factors such as disability or developmental delay. Thus, a disability or developmental delay only becomes a risk factor of health, when combined with other risk factors that decrease the functioning of children in their every-day life.
  • Almqvist, L, et al. (författare)
  • Participation in school environment of children and youth with disabilities : a person-oriented approach
  • 2005
  • Ingår i: Scandinavian Journal of Psychology. - Oxford : Blackwell. - 0036-5564. ; 46:3, s. 305-314
  • Tidskriftsartikel (refereegranskat)abstract
    • This study investigated patterns of interrelated positive subject and environmental factors related to participation in school activities of pupils with different kinds of disabilities. Questionnaires concerning participation were collected from 472 pupils with disabilities and their teachers, parents and special education consultants. A person-oriented approach with the aim to identify patterns of variables related to a high degree of participation of pupils with disabilities was used. Cluster-groups were formed based on scores for individual subjects on factors identified as important for participation. Groups with a high degree of participation were characterized by high scores in autonomy and perceived interaction with peers and teachers and an internal locus of control. Type and degree of disability did not predict cluster group membership. A conclusion is that the outcome participation is better predicted by patterns of interrelated positive subject and environmental factors than by type of disability or any other single factor.
  • Almqvist, Lena (författare)
  • Patterns of engagement in young children with and without developmental delay
  • 2006
  • Ingår i: Journal of Policy and Practice in Intellectual Disabilities. - Malden, MA : Blackwel. - 1741-1122. ; 3:1, s. 65-75
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of this study was to identify patterns of process characteristics capturing the essence of children's experiences in their natural environment and their possible association with health and well-being operationalized as engagement for young children with and without developmental delay. Data were gathered from 1035 children between 1 and 3 years in community-based preschools. Teachers and parents responded to questionnaires concerning interaction, activity, and engagement, as well as demographic and biopsychosocial information. A cluster analysis was conducted to find homogenous patterns related to engagement. Five distinct patterns were identified, all related to different levels of engagement. Several factors, within both the child and the environment, were associated with high levels of engagement. Interaction skills and availability of activities appear to be strong predictors of high-level engagement, regardless whether or not the child has been identified as developmentally delayed.
  • Andersén, Jim (författare)
  • A holistic approach to acquisition of strategic resources
  • 2007
  • Ingår i: Journal of European Industrial Training. - 0309-0590. ; 31:8, s. 660-677
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: The aim of this article is to provide a holistic framework for the acquisition of strategic resources. Design/methodology/approach: The literature dealing with resource creation is reviewed and analyzed from a resource-based point of view. The major methods of acquiring resources are identified through the literature review and the applicability of the framework proposed is illustrated with an empirical example. Findings: Three ways of acquiring strategic resources are identified-- direct investments, organizational processes, and product market positioning. All three ways of acquisition can be intentional or unintentional. Arguments for using this six-dimension scale are provided through deductive reasoning, literature review, and the empirical example. Research implications/limitations: The study identifies the six dimensions of strategic resource acquisition. However, integration of these dimensions is not a subject addressed in this study. Cluster analysis of companies according to these dimensions could enhance our understanding of the characteristics of companies regarding resource acquisition. Originality/value: Whereas previous studies have generally used a single-theory approach, this study highlights the importance of having a holistic outlook when analyzing resource-based competitive advantages.
  • Andersén, Jim (författare)
  • How and what to imitate? : A sequential model for the imitation of competitive advantages
  • 2007
  • Ingår i: Strategic Change. - 1086-1718. ; 16:6, s. 271-279
  • Tidskriftsartikel (refereegranskat)abstract
    • Research in competitiveness generally focuses on how competitive advantages can be developed. This is an important area of research, but as a consequence the process of imitation of competitive advantages has become a neglected area of research. A conceptual sequential model for the imitation of competitive advantages is presented. The model mainly draws on resource-based theory, provides a holistic view of the imitation process, identifies different hindrances to imitation of competitive advantages, and presents arguments for the scheme chosen.
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