| 1. |
- Aghanavesi, Somayeh, 1981-, et al.
(författare)
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A multiple motion sensors index for motor state quantification in Parkinson's disease
- 2020
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Ingår i: Computer Methods and Programs in Biomedicine. - : Elsevier BV. - 0169-2607 .- 1872-7565. ; 189
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To construct a Treatment Response Index from Multiple Sensors (TRIMS) for quantification of motor state in patients with Parkinson's disease (PD) during a single levodopa dose. Another aim was to compare TRIMS to sensor indexes derived from individual motor tasks. Method: Nineteen PD patients performed three motor tests including leg agility, pronation-supination movement of hands, and walking in a clinic while wearing inertial measurement unit sensors on their wrists and ankles. They performed the tests repeatedly before and after taking 150% of their individual oral levodopa-carbidopa equivalent morning dose.Three neurologists blinded to treatment status, viewed patients’ videos and rated their motor symptoms, dyskinesia, overall motor state based on selected items of Unified PD Rating Scale (UPDRS) part III, Dyskinesia scale, and Treatment Response Scale (TRS). To build TRIMS, out of initially 178 extracted features from upper- and lower-limbs data, 39 features were selected by stepwise regression method and were used as input to support vector machines to be mapped to mean reference TRS scores using 10-fold cross-validation method. Test-retest reliability, responsiveness to medication, and correlation to TRS as well as other UPDRS items were evaluated for TRIMS. Results: The correlation of TRIMS with TRS was 0.93. TRIMS had good test-retest reliability (ICC = 0.83). Responsiveness of the TRIMS to medication was good compared to TRS indicating its power in capturing the treatment effects. TRIMS was highly correlated to dyskinesia (R = 0.85), bradykinesia (R = 0.84) and gait (R = 0.79) UPDRS items. Correlation of sensor index from the upper-limb to TRS was 0.89. Conclusion: Using the fusion of upper- and lower-limbs sensor data to construct TRIMS provided accurate PD motor states estimation and responsive to treatment. In addition, quantification of upper-limb sensor data during walking test provided strong results. © 2019
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| 2. |
- Elf, Lena Marie, 1962, et al.
(författare)
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A dynamic conceptual model of care planning
- 2007
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Ingår i: SCANDINAVIAN JOURNAL OF CARING SCIENCES. - : Wiley. - 0283-9318 .- 1471-6712. ; 21:4, s. 530-538
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Tidskriftsartikel (refereegranskat)abstract
- This article presents a conceptual model of the care planning process developed to identify the hypothetical links between structural, process and outcome factors important to the quality of the process. Based on existing literature, it was hypothesized that a thorough assessment of patients' health needs is an important prerequisite when making a rigorous diagnosis and preparing plans for various care interventions. Other important variables that are assumed to influence the quality of the process are the care culture and professional knowledge. The conceptual model was developed as a system dynamics causal loop diagram as a first essential step towards a computed model. System dynamics offers the potential to describe processes in a nonlinear, dynamic way and is suitable for exploring, comprehending, learning and communicating complex ideas about care processes.
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| 3. |
- Elf, Marie, 1962, et al.
(författare)
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A systematic review of the psychometric properties of instruments for assessing the quality of the physical environment in healthcare
- 2017
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Ingår i: Journal of Advanced Nursing. - : Wiley. - 0309-2402 .- 1365-2648. ; 73:12, s. 2796-2816
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Tidskriftsartikel (refereegranskat)abstract
- Aim. To identify instruments measuring the quality of the physical healthcare environment, describe their psychometric properties. Background. The physical healthcare environment is regarded as a quality factor for health care. To facilitate evidence-based design there is a need for valid and usable instruments that can evaluate the design of the healthcare environment. Data sources. A systematic literature search in Medline, CINAHL, Psychinfo, Avery index and reference lists of eligible papers (1990-2016). Review method. Consensus based standards for selection of health measurement instruments guidelines were used to evaluate psychometric data reported. Results. Twenty-three instruments were included. Most of the instruments are intended for healthcare environments related to the care of older people. Many of the instruments were old, lacked strong, contemporary theoretical foundations, varied in the extent to which they had been used in empirical studies and in the degree to which their validity and reliability had been evaluated. Conclusions. Although we found many instruments for measuring the quality of the physical healthcare environment, none met all of our criteria for robustness. Of the instruments, The Multiphasic environmental assessment procedure, The Professional environment assessment protocol and The therapeutic environment screening have been used and tested most frequently. The Perceived hospital quality indicators are user centred and combine aspects of the physical and social environment. The Sheffield care environment assessment matrix has potential as it is comprehensive developed using a theoretical framework that has the needs of older people at the centre. However, further psychometric and user-evaluation of the instrument is required.
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| 4. |
- Jansson Löfmark, Rasmus, 1979, et al.
(författare)
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Determination of eflornithine enantiomers in plasma by precolumn derivatization with o-phthalaldehyde-N-acetyl-l-cysteine and liquid chromatography with UV detection
- 2010
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Ingår i: BMC Biomedical chromotography. - : Wiley. - 0269-3879 .- 1099-0801. ; 24:7, s. 768-773
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Tidskriftsartikel (refereegranskat)abstract
- A bioanalytical method for indirect determination of eflornithine enantiomers in 75 mu L human plasma has been developed and validated. L- and D-eflornithine were derivatized with o-phthalaldehyde and N-acetyl-L-cysteine to generate diastereomers which were separated on two serially connected Chromolith Performance columns (RP-18e 100 x 4.6 mm i.d.) by a isocratic flow followed by a gradient flow for elution of endogenous compounds. The diastereomers were detected with UV (340 nm). The between-day precisions for L- and D-eflornithine in plasma were 8.4 and 2.3% at 3 mu m, 4.0 and 5.1% at 400 mu m, and 2.0 and 3.7% at 1000 mu m. The lower limit of quantification was determined to be 1.5 mu m, at which precision was 14.9 and 9.9% for 1- and D-eflornithine, respectively.
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| 5. |
- Lawrence, Maggie, et al.
(författare)
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Stroke secondary prevention, a non-surgical and non-pharmacological consensus definition: results of a Delphi study
- 2019
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Ingår i: BMC Research Notes. - : Springer Science and Business Media LLC. - 1756-0500. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Evidence supporting lifestyle modification in vascular risk reduction is limited, drawn largely from primary prevention studies. To advance the evidence base for non-pharmacological and non-surgical stroke secondary prevention (SSP), empirical research is needed, informed by a consensus-derived definition of SSP. To date, no such definition has been published. We used Delphi methods to generate an evidence-based definition of non-pharmacological and non-surgical SSP. RESULTS: The 16 participants were members of INSsPiRE (International Network of Stroke Secondary Prevention Researchers), a multidisciplinary group of trialists, academics and clinicians. The Elicitation stage identified 49 key elements, grouped into 3 overarching domains: Risk factors, Education, and Theory before being subjected to iterative stages of elicitation, ranking, discussion, and anonymous voting. In the Action stage, following an experience-based engagement with key stakeholders, a consensus-derived definition, complementing current pharmacological and surgical SSP pathways, was finalised: Non-pharmacological and non-surgical stroke secondary prevention supports and improves long-term health and well-being in everyday life and reduces the risk of another stroke, by drawing from a spectrum of theoretically informed interventions and educational strategies. Interventions to self-manage modifiable lifestyle risk factors are contextualized and individualized to the capacities, needs, and personally meaningful priorities of individuals with stroke and their families.
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| 6. |
- Malmberg, Per, 1974, et al.
(författare)
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Analysis of bone minerals by time-of-flight secondary ion mass spectrometry: a comparative study using monoatomic and cluster ions sources.
- 2007
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Ingår i: Rapid communications in mass spectrometry : RCM. - : Wiley. - 0951-4198 .- 1097-0231. ; 21:5, s. 745-9
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Tidskriftsartikel (refereegranskat)abstract
- Time-of-flight secondary ion mass spectrometry (TOF-SIMS) is an important tool for the analysis of bone minerals at implant surfaces. Most studies have been performed with monoatomic primary ion sources such as Ga(+) with poor secondary molecular ion production efficiency and only elemental distributions and minor fragments of bone minerals have been reported. By using cluster ion sources, such as Au(1-3) (+) and Bi(1-3) (+), identification of larger hydroxyapatite species at m/z 485, 541, 597 and 653, identified as Ca(5)P(3)O(12), Ca(6)P(3)O(13), Ca(7)P(3)O(14) and Ca(8)P(3)O(15), respectively, became possible. The ions appear to be fragments of the hydroxyapatite unit cell Ca(10)(PO(4))(6)(OH)(2). Each ion in the series is separated by 55.9 m/z units, corresponding to CaO, and this separation might reflect the columnar nature of the unit cell.
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| 7. |
- Nordin, Susanna, et al.
(författare)
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Assessing the physical environment of older people’s residential care facilities: development of the Swedish version of the Sheffield Care Environment Assessment Matrix (S-SCEAM)
- 2015
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Ingår i: BMC Geriatrics. - : Springer Science and Business Media LLC. - 1471-2318 .- 1471-2318. ; 15:3, s. 1-11
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundThere is emerging evidence that the physical environment is important for health, quality of life and care, but there is a lack of valid instruments to assess health care environments. The Sheffield Care Environment Assessment Matrix (SCEAM), developed in the United Kingdom, provides a comprehensive assessment of the physical environment of residential care facilities for older people. This paper reports on the translation and adaptation of SCEAM for use in Swedish residential care facilities for older people, including information on its validity and reliability.MethodsSCEAM was translated into Swedish and back-translated into English, and assessed for its relevance by experts using content validity index (CVI) together with qualitative data. After modification, the validity assessments were repeated and followed by test-retest and inter-rater reliability tests in six units within a Swedish residential care facility that varied in terms of their environmental characteristics.Results Translation and back translation identified linguistic and semantic related issues. The results of the first content validity analysis showed that more than one third of the items had item-CVI (I-CVI) values less than the critical value of 0.78. After modifying the instrument, the second content validation analysis resulted in I-CVI scores above 0.78, the suggested criteria for excellent content validity. Test-retest reliability showed high stability (96% and 95% for two independent raters respectively), and inter-rater reliability demonstrated high levels of agreement (95% and 94% on two separate rating occasions). Kappa values were very good for test-retest (κ= 0.903 and 0.869) and inter-rater reliability (κ= 0.851 and 0.832).ConclusionsAdapting an instrument to a domestic context is a complex and time-consuming process, requiring an understanding of the culture where the instrument was developed and where it is to be used. A team, including the instrument’s developers, translators, and researchers is necessary to ensure a valid translation and adaption. This study showed preliminary validity and reliability evidence for the Swedish version (S-SCEAM) when used in a Swedish context. Further, we believe that the S-SCEAM has improved compared to the original instrument and suggest that it can be used as a foundation for future developments of the SCEAM model.
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| 8. |
- Nordin, Susanna, et al.
(författare)
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Exploring Environmental Variation in Residential Care Facilities for Older People
- 2017
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Ingår i: Health Environments Research and Design Journal. - : SAGE Publications. - 1937-5867 .- 2167-5112. ; 10:2, s. 49-65
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Tidskriftsartikel (refereegranskat)abstract
- Objective: The aim of this study was to explore variation in environmental quality in Swedish residential care facilities (RCFs) using the Swedish version of the Sheffield Care Environment Assessment Matrix (S-SCEAM). Background: Well-designed physical environments can positively impact on health and well-being among older persons with frail health living in RCFs and are essential for supporting person-centered care. However, the evidence base for informing the design of RCFs is weak, partly due to a lack of valid and reliable instruments that could provide important information on the environmental quality. Methods: Twenty RCFs were purposively sampled from several regions, varying in their building design, year of construction, size, and geographic location. The RCFs were assessed using S-SCEAM and the data were analyzed to examine variation in environmental quality between and within facilities. Results: There was substantial variation in the quality of the physical environment between and within RCFs, reflected in S-SCEAM scores related to specific facility locations and with regard to domains reflecting residents’ needs. In general, private apartments and dining areas had high S-SCEAM scores, while gardens had lower scores. Scores on the safety domain were high in the majority of RCFs, whereas scores for cognitive support and privacy were relatively low. Conclusions: Despite high building standard requirements, the substantial variations regarding environmental quality between and within RCFs indicate the potential for improvements to support the needs of older persons. We conclude that S-SCEAM is a sensitive and unique instrument representing a valuable contribution to evidence-based design that can support person-centered care.
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| 9. |
- Stenmark, Dick, 1962, et al.
(författare)
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System Support for Knowledge Work: Bridging the Knowing-Doing Gap
- 2006
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Ingår i: International Journal of Knowledge Management. - : IGI Global. - 1548-0666 .- 1548-0658. ; 2:2, s. 46-68
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Tidskriftsartikel (refereegranskat)abstract
- Many researchers argue that information systems (IS) can play an important role in supporting organizational knowledge application. However, recent IS research indicates that knowledge management systems (KMS) often fail when implemented in the knowledge work practice of contemporary organizations. While KMS maintenance has been recognized as an important IS research area, imbalance between the desire for accurate content and the workload required to achieve this still appears to be a critical issue, resulting in systems of little use for organizations in their knowledge application processes. Driven by the ambition to contribute recommendations for how to integrate KMS with everyday knowledge work, we use general lessons learned from development of groupware applications as a theoretical lens to analyze empirical experiences from three implemented and evaluated KMS. Targeting the KMS maintenance challenge, our recommendations extend earlier IS research on the implementation and use of knowledge work support systems. On a practical level, our recommendations assist KMS developers in attempts to bridge the knowing-doing gap in organizations where individual members do not know or know of each other and the organization as a whole does not know what it knows.
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