| 61. |
- Holmberg, Anna, 1974, et al.
(författare)
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Does waterborne citalopram affect the aggressive and sexual behaviour of rainbow trout and guppy?
- 2011
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Ingår i: Journal of hazardous materials. - : Elsevier BV. - 1873-3336 .- 0304-3894. ; 187:1-3, s. 596-9
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Tidskriftsartikel (refereegranskat)abstract
- Citalopram is one of several selective serotonin reuptake inhibitors (SSRIs) commonly found in treated sewage effluents. Accordingly, there are concerns about possible adverse effects of SSRIs on aquatic organisms, particularly behavioural effects similar to those associated with SSRI use in humans. Rainbow trout fry and adult male guppies were therefore exposed to waterborne citalopram, ranging from environmentally relevant to high concentrations (1, 10, 100 μg/L) for 3-7 days. Under these experimental conditions citalopram does not appear to cause significant effects on aggression in rainbow trout fry or on sexual behaviour in male guppies. This may be explained by a relatively low uptake of citalopram from water to fish.
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| 62. |
- Holmberg, Christopher, 1984, et al.
(författare)
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Empowering aspects for healthy food and physical activity habits : adolescents’ experiences of a school-based intervention in a disadvantaged urban community
- 2018
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Ingår i: International Journal of Qualitative Studies on Health and Well-being. - Abingdon : Taylor & Francis. - 1748-2623 .- 1748-2631. ; 13:sup1: Equal Health
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Tidskriftsartikel (refereegranskat)abstract
- Purpose:This study aimed to describe adolescents’ experiences of participating in a health-promoting school-based intervention regarding food and physical activity, with a focus on empowering aspects. Method:The school was located in a urban disadvantaged community in Sweden, characterized by poorer self-reported health and lower life expectancy than the municipality average. Focus group interviews with adolescents (29 girls, 20 boys, 14–15 years) and their teachers (n = 4) were conducted two years after intervention. Data were categorized using qualitative content analysis. Results: A theme was generated, intersecting with all the categories: Gaining control over one’s health: deciding, trying, and practicing together, in new ways, using reflective tools. The adolescents appreciated influencing the components of the intervention and collaborating with peers in active learning activities such as practicing sports and preparing meals. They also reported acquiring new health information, that trying new activities was inspiring, and the use of pedometers and photo-food diaries helped them reflect on their health behaviours. The adolescents’ experiences were also echoed by their teachers. Conclusions: To facilitate empowerment and stimulate learning, health-promotion interventions targeting adolescents could enable active learning activities in groups, by using visualizing tools to facilitate self-reflection, and allowing adolescents to influence intervention activities.
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| 63. |
- Holmberg, Charlotte, 1972-
(författare)
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Så är det ju - den blir aldrig färdig! : En etnografisk studie om förskolepedagogers arbete med pedagogisk dokumentation
- 2015
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This dissertation is about educators work with pedagogical documentation in Swedish preschools. The purpose has been to investigate how pedagogical documentation is realized in everyday work in two preschools and examine how educators express themselves on purposes, opportunities and difficulties with this approach. This has been important to study since many preschools have chosen to work with pedagogic documentation to follow up and assure the quality of their work. Since 2010 pedagogical documentation is included in the preschools curriculum. The study was conducted at two different preschools where I followed a total of six educators in two preschool departments for two months in each department. Methods used to collect data were selected based on an ethnographic approach. Data collection consists of field notes, photographs, recorded interviews and documentations from preschools and their working plans. The analysis is based on a curriculum theory perspective, and especially important concepts have been transformation arena and realization arena. Furthermore, frame factor theory and the didactic questions what, how and why, have been used to analyze data. The results show that the documentation works where formulated in different ways depending on the frames and conditions. One preschool unit was at a municipal preschool without any special pedagogical approach. Here the pedagogical documentation was in a startup phase and was one of many tasks in the pedagogical work. The other preschool unit was in a Reggio Emilia inspired preschool who had worked with pedagogical documentation for several years. Here the work with pedagogical documentation was the driving force for developing the work. This ideological difference was reflected in what the educators documented, how they documented and how the documentations were used. Pedagogical documentation was partly be seen as a cumbersome way of working among the participants, whether they are beginners or experienced. It is in the nature of the work with pedagogical documentation that there are no obvious answers, which can lead to some uncertainty whether one is right or not. Other factors leading to frustration is that this approach is time-consuming and that the new technologies available require a lot of skills to be used. The study highlights that continuous training plays a crucial role as one of educator’s preconditions to succeed in the work with pedagogical documentation. In this study, one can also see how ethical aspects constantly makes themselves felt and need to be highlighted. The main impression is that the educators, despite the perceived difficulties, felt that it was stimulating and meaningful to work with pedagogical documentation and that they saw it as a tool for developing their work.
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| 64. |
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| 65. |
- Holmberg, Eva
(författare)
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Aerodynamic measurements of normal voice
- 1993
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Vocal fold vibration results from an alternating balance between subglottal air pressure that drives the vocal folds apart and muscular, elastic, and restoring forces that draw them together. The aim of the present thesis is to present quantitative data of normal vocal function using a noninvasive method. Measurements are made on the inverse filtered airflow waveform, of estimated average trans glottal pressure and glottal airflow, and of sound pressure for productions of syllable sequences. Statistical results are used to infer mechanisms that underlie differences across ( 1 ) normal, loud, and soft voice, (2) normal, high, and low pitch, and (3) between female and male voices. Interspeaker variation in group data and intra speaker variation across repeated recordings is also investigated. The results showed no significant female-male differences in pressure, suggesting that differences in other measures were not primarily due to differences in the respiratory systems . Most glottal waveforms showed a DC flow offset, suggesting an air leakage through a posterior glottal opening. Results suggested (indirectly) that the males in comparison with the females had significantly higher vocal fold closing velocities (maximum flow declination rate), larger vocal fold oscillations (AC flow), and relatively longer closed portions of the cycle (open quotient) in normal and loud voice. In soft voice, female and male waveforms were more alike. In comparison with normal voice, both females and males produced loud voice with significantly higher values of pressure, vocal fold closing velocity, and AC flow. Soft voice was produced with significantly lower values of these measures and increased DC flow. Correlation analyses indicated that several of the airflow measures were more directly related to vocal intensity than to pitch. Interspeaker variation was large, emphasizing the importance of large subject groups to capture normal variation. Intraspeaker variation across recording sessions was less than 2 standard deviations of the group means. The results should contribute to the understanding of normal voice function, and should be useful as norms in studies of voices disorders as well.
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| 66. |
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| 67. |
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| 68. |
- Holmberg, Henrik, 1976-, et al.
(författare)
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Time to initiation of lipid-lowering drugs for subclinical atherosclerosis : sub-study of VIPVIZA randomized controlled trial, with single-arm cross-over
- 2022
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Ingår i: European Heart Journal Open. - : Oxford University Press. - 2752-4191. ; 2:1
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: Visual information about subclinical atherosclerosis was provided to physicians and participants in the VIPVIZA trial, inclusion 2013-16 in northern Sweden, aiming to improve adherence to cardiovascular disease (CVD) prevention guidelines. Pictorial risk information may be more actionable. The aim of this study was to investigate the effect of intervention with pictorial risk information on time to first dispensing of statins.METHODS AND RESULTS: Asymptomatic atherosclerotic disease was screened for by carotid ultrasound examination in 3532 participants enrolled in VIPVIZA, of those 3000 met the criteria for this study. Participants were randomly assigned to receive pictorial risk information consisting of graphical representation of atherosclerosis as compared to a control group without intervention. Time to initiation of statins was assessed during 5 years of follow-up through the National prescribed drug register. After 3 years, both groups were re-examined and received the intervention information. In the intervention group, initiation of statins increased considerably for the first 3 years and a smaller increase was also seen after re-intervention. After the cross-over, the control group showed a sharp increase in initiation of statins, almost reaching the same proportion treated at 5 years. The propensity to initiate statin treatment increased over the study period and there was no difference between men and women.CONCLUSIONS: The pictorial information had an effect on time to initiation of statins, both as original and repeated intervention and also in the control group after single-arm cross-over. The current study supports pictorial information as a tool to shorten time to initiation of statins for CVD prevention.
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| 69. |
- Holmberg, Johan, et al.
(författare)
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Old Moving Groups
- 2002
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Ingår i: Modes of Star Formation and the Origin of Field Populations, ASP Conference Proceedings.. - 1583811281 ; 285, s. 188-194
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Konferensbidrag (refereegranskat)
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| 70. |
- Holmberg, Kirsten, et al.
(författare)
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Health complaints in children with attention-deficit/hyperactivity disorder
- 2006
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 95:6, s. 664-70
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To assess recurrent subjective health complaints in Swedish schoolchildren with attention-deficit/hyperactivity disorder (ADHD). Methods: Cohort study of 577 fourth-graders (10-y-olds) in one municipality in Stockholm County. All children were screened for attention and behaviour problems through interviews with their parents and teachers. Children with high scores underwent further clinical and cognitive assessments. Information about health complaints was collected from the children themselves in a classroom questionnaire. The 516 children for whom there was information from all three data sources were included in the final study population. Hypotheses were tested in multivariate analyses with adjustment for sex and parental education. Results: Recurrent abdominal pain (RAP), sleeping problems and tiredness were associated with ADHD (stratified relative risks: 2.2 [1.4-3.4], 1.7 [1.1-2.7] and 2.7 [1.7-4.1], respectively), while there was no association with headache. Conclusion: This study indicates that treatment strategies for children with ADHD need to include an effective evaluation and treatment of RAP, tiredness and sleeping disturbances. Evaluation of ADHD should be considered in children with recurrent health complaints.
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