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| 2. |
- Almquist-Tangen, Gerd, et al.
(författare)
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What makes parents act and react? Parental views and considerations relating to "child health' during infancy
- 2017
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Ingår i: Journal of Child Health Care. - London : SAGE Publications. - 1367-4935 .- 1741-2889. ; 21:4, s. 415-423
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Tidskriftsartikel (refereegranskat)abstract
- Lifestyle factors and behaviours are adopted very early in life and tend to persist throughout life. Considering that the parents are the primary gatekeepers for their child's health, there is a need to gain more knowledge and deeper understanding about what causes parents to act and react in order for early preventive efforts to have any effect. The aim was to explore the parental views and considerations concerning child health' among parents with infants 8-10 months old. The sample was strategic and 16 parents (aged 23-41) were recruited from three child health centres in Sweden. Open-ended interviews were conducted and a qualitative, manifest content analysis approach was utilized. The parents described the subject child health' as a large, multifaceted concept. Three categories emerged during data analysis: developing a sixth sense, being affected by perceptions and believing health and ill health as a continuum. The parents perceived food and feeding issues as one of the most worrying aspects and a significant indicator of child health'. In order to meet the parents on their turf, the healthy health message' conveyed needs to take the parental perspective into consideration rather than attempting to educate the parents from predetermined assumption, belief and values.
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| 3. |
- Arvidsson, Daniel, 1974, et al.
(författare)
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A Longitudinal Analysis of the Relationships of Physical Activity and Body Fat With Nerve Growth Factor and Brain-Derived Neural Factor in Children
- 2018
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Ingår i: Journal of Physical Activity & Health. - : Human Kinetics. - 1543-3080 .- 1543-5474. ; 15:8, s. 620-625
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Tidskriftsartikel (refereegranskat)abstract
- Background: Nerve growth factor (NGF) and brain-derived neural factor (BDNF) are important for brain function and detectable in the blood. This study explored the longitudinal associations of physical activity and body fat with serum NGF and BDNF in children. Methods: Two waves of measurements were performed 2 years apart in 8- to 11-year-old children, including physical activity using the ActiGraph model 7164, body composition by dual-energy X-ray absorptiometry, and serum NGF and BDNF determined by multiplex immunoassay. The first wave included 248 children. Full information maximum likelihood estimation with robust standard errors was applied in structural equation modeling. Results: Vigorous physical activity showed a direct positive longitudinal relationship with NGF (standardized coefficient beta = 0.30, P = .01) but not with BDNF (beta = 0.04, P = .84). At the same time, body fat percentage was positively related to both NGF (beta = 0.59, P < .001) and BDNF (beta = 0.17, P = .04). There was an indication of an indirect relationship of vigorous physical activity with NGF (product of unstandardized coefficient beta = -0.18, P = .02) and BDNF (beta = -0.07, P = .05) through the negative relationship with body fat percentage (beta = -0.36, P < .001). Conclusions: Vigorous physical activity is directly related to serum NGF and indirectly through the level of body fat. The relationships with serum BDNF are more complex.
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| 4. |
- Arvidsson, Ida, et al.
(författare)
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Shiga toxin-induced complement-mediated hemolysis and release of complement-coated red blood cell-derived microvesicles in hemolytic uremic syndrome.
- 2015
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Ingår i: Journal of Immunology. - : The American Association of Immunologists. - 1550-6606 .- 0022-1767. ; 194:5, s. 2309-2318
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Tidskriftsartikel (refereegranskat)abstract
- Shiga toxin (Stx)-producing Escherichia coli (STEC) cause hemolytic uremic syndrome (HUS). This study investigated whether Stx2 induces hemolysis and whether complement is involved in the hemolytic process. RBCs and/or RBC-derived microvesicles from patients with STEC-HUS (n = 25) were investigated for the presence of C3 and C9 by flow cytometry. Patients exhibited increased C3 deposition on RBCs compared with controls (p < 0.001), as well as high levels of C3- and C9-bearing RBC-derived microvesicles during the acute phase, which decreased after recovery. Stx2 bound to P1 (k) and P2 (k) phenotype RBCs, expressing high levels of the P(k) Ag (globotriaosylceramide), the known Stx receptor. Stx2 induced the release of hemoglobin and lactate dehydrogenase in whole blood, indicating hemolysis. Stx2-induced hemolysis was not demonstrated in the absence of plasma and was inhibited by heat inactivation, as well as by the terminal complement pathway Ab eculizumab, the purinergic P2 receptor antagonist suramin, and EDTA. In the presence of whole blood or plasma/serum, Stx2 induced the release of RBC-derived microvesicles coated with C5b-9, a process that was inhibited by EDTA, in the absence of factor B, and by purinergic P2 receptor antagonists. Thus, complement-coated RBC-derived microvesicles are elevated in HUS patients and induced in vitro by incubation of RBCs with Stx2, which also induced hemolysis. The role of complement in Stx2-mediated hemolysis was demonstrated by its occurrence only in the presence of plasma and its abrogation by heat inactivation, EDTA, and eculizumab. Complement activation on RBCs could play a role in the hemolytic process occurring during STEC-HUS.
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| 5. |
- Arvidsson, Louise, et al.
(författare)
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Fat, sugar and water intakes among families from the IDEFICS intervention and control groups: first observations from I.Family
- 2015
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Ingår i: Obesity Reviews. - : Wiley. - 1467-7881 .- 1467-789X. ; 16:Suppl. 2, s. 127-137
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundThe objective of this paper is to investigate differences in diets of families in intervention versus control communities 5years after the Identification and Prevention of Dietary- and Lifestyle-Induced Health Effects in Children and Infants intervention ended. MethodsAltogether, 4,691 families from the I.Family study with at least one participating parent and one child are included in this analysis. Diet quality indicators, defined as propensities to consume fat, sugar, water and fruit and vegetables, are calculated from a 59-item food frequency questionnaire. Multilevel linear models with random intercepts for study centre are used to determine whether mean diet indicators, calculated at the family level, differed as a function of previous exposure to the intervention. ResultsFamilies in the intervention communities reported a significantly lower sugar propensity (19.8% vs. 20.7% of total food items, p<0.01) and a higher water propensity (47.3% vs. 46.0% of total beverages, p<0.05) compared with families in the control communities, while fat and fruit and vegetables propensities were similar. No significant diet differences between intervention and control children were present at the Identification and Prevention of Dietary- and Lifestyle-Induced Health Effects in Children and Infants baseline. DiscussionThis result indicates better diet quality in intervention families, which was not present in children when their diets were assessed before the intervention, and gives some cause for optimism regarding the sustainability of some aspects of the diet intervention.
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| 6. |
- Arvidsson, M., et al.
(författare)
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Feeling fine - the effect of topography and friction on perceived roughness and slipperiness
- 2017
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Ingår i: Biotribology. - : Elsevier Ltd. - 2352-5738. ; 11, s. 92-101
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Tidskriftsartikel (refereegranskat)abstract
- (1) Background. To design materials with specific haptic qualities, it is important to understand both the contribution of physical attributes from the surfaces of the materials and the perceptions that are involved in the haptic interaction. (2) Methods. A series of 16 wrinkled surfaces consisting of two similar materials of different elastic modulus and 8 different wrinkle wavelengths were characterized in terms of surface roughness and tactile friction coefficient. Sixteen participants scaled the perceived Roughness and Slipperiness of the surfaces using free magnitude estimation. Friction experiments were performed both by participants and by a trained experimenter with higher control. (3) Results and discussion. The trends in friction properties were similar for the group of participants performing the friction measurements in an uncontrolled way and the experiments performed under well-defined conditions, showing that the latter type of measurements represent the general friction properties well. The results point to slipperiness as the key perception dimension for textures below 100 μm and roughness above 100 μm. Furthermore, it is apparent that roughness and slipperiness perception of these types of structures are not independent. The friction is related to contact area between finger and material. Somewhat surprising was that the material with the higher elastic modulus was perceived as more slippery. A concluding finding was that the flat (high friction) reference surfaces were scaled as rough, supporting the theory that perceived roughness itself is a multidimensional construct with both surface roughness and friction components.
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| 8. |
- Arvidsson, Susann, 1965-, et al.
(författare)
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Callers' perceptions of their contact with a rheumatology telephone helpline
- 2019
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Ingår i: Musculoskeletal Care. - Oxford : Wiley. - 1478-2189 .- 1557-0681. ; 17:1, s. 105-112
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Tidskriftsartikel (refereegranskat)abstract
- Background Telephone helplines are useful for improving patients' access to healthcare services and reducing the need for frequent face-to-face contact with healthcare professionals. Little is known about how people who phone a helpline perceive the encounter. Objectives The aims of the present study were to describe the variation in how callers perceive their encounter with a rheumatology telephone helpline. Methods The study had a descriptive, qualitative design and used a phenomenographic approach, comprising 27 semi-structured telephone interviews with callers to Rheuma Direct, a rheumatology telephone helpline with specially trained nurses. The callers comprised 22 women and five men, aged 22-89 years (mean 54 years). Results The callers phoned Rheuma Direct when they had problems obtaining answers to questions on the internet or from healthcare professionals. Three descriptive categories emerged: constructive dialogue, specialized competence and applicability. The callers perceived that it was a constructive dialogue when they were able to discuss their concerns with someone, received emotional support, felt reassured and were satisfied with the information provided. They perceived specialized competence when the nurses were experienced and skilful, the advice provided complemented previously received information and when they had more knowledge after the call. The callers perceived that Rheuma Direct had applicability because it was easy to access and they could make different choices before, during and after the telephone call. Conclusions Callers to a rheumatology telephone helpline perceived it as a valuable complement to other sources of information, and felt that it could provide them with the tools to manage their disease better, as well as future contacts with healthcare professionals.
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| 9. |
- Brond, J. C., et al.
(författare)
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Generating ActiGraph Counts from Raw Acceleration Recorded by an Alternative Monitor
- 2017
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Ingår i: Medicine and Science in Sports and Exercise. - : Ovid Technologies (Wolters Kluwer Health). - 0195-9131. ; 49:11, s. 2351-2360
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: This study aimed to implement an aggregation method in Matlab for generating ActiGraph counts from raw acceleration recorded with an alternative accelerometer device and to investigate the validity of the method. Methods: The aggregation method, including the frequency band-pass filter, was implemented and optimized based on standardized sinusoidal acceleration signals generated in Matlab and processed in the ActiLife software. Evaluating the validity of the aggregation method was approached using a mechanical setup and with a 24-h free-living recording using a convenient sample of nine subjects. Counts generated with the aggregation method applied to Axivity AX3 raw acceleration data were compared with counts generated with ActiLife from ActiGraph GT3X+ data. Results: An optimal band-pass filter was fitted resulting in a root-mean-square error of 25.7 counts per 10 s and mean absolute error of 15.0 counts per second across the full frequency range. The mechanical evaluation of the proposed aggregation method resulted in an absolute mean +/- SD difference of -0.11 +/- 0.97 counts per 10 s across all rotational frequencies compared with the original ActiGraph method. Applying the aggregation method to the 24-h free-living recordings resulted in an epoch level bias ranging from -16.2 to 0.9 counts per 10 s, a relative difference in the averaged physical activity (counts per minute) ranging from -0.5% to 4.7% with a group mean +/- SD of 2.2% +/- 1.7%, and a Cohen' s kappa of 0.945, indicating almost a perfect agreement in the intensity classification. Conclusion: The proposed band-pass filter and aggregation method is highly valid for generating ActiGraph counts from raw acceleration data recorded with alternative devices. It would facilitate comparability between studies using different devices collecting raw acceleration data.
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| 10. |
- Liimatainen, H., et al.
(författare)
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Driving forces of road freight CO2 in 2030
- 2015
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Ingår i: International Journal of Physical Distribution & Logistics Management. - : Emerald. - 0960-0035. ; 45:3, s. 260-285
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Tidskriftsartikel (refereegranskat)abstract
- Purpose - Road freight carbon dioxide (CO2) emissions are determined by a complex interaction between shippers and hauliers within the boundaries set by regulations and economic factors. It is necessary to gain understanding about the various driving forces and trends affecting these to promote low carbon future. The purpose of this paper is to find out what factors affect the long-term future development of road freight CO2 emissions and whether the long-term emission targets will be achieved. Design/methodology/approach - An international comparison of similar Delphi surveys is carried out in Finland, Norway, and Sweden. Findings - The Delphi surveys indicate that the structural change of the economy, changes of consumer habits, concerns of energy and environment and changes in logistics practices and technology are the overarching trends shaping the future of the energy efficiency and CO2 emissions of road freight transport. The expert forecasts for Finland and Sweden highlight that reaching the carbon emission target of 30 per cent reduction for the year 2030 is possible. However, the CO2 emissions may also increase significantly even though the CO2 intensity would decrease, as the Norwegian forecast shows. Originality/value - This study combined quantitative and qualitative analysis. The results confirmed that similar factors are seen to affect the future in all three countries, but with some national differences in the likely effects of the factors. Future research using the same methodology would enable wider analysis of the global significance of these driving forces.
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