| 41. |
- Latorre-Margalef, Neus, et al.
(författare)
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Effects of influenza A virus infection on migrating mallard ducks
- 2009
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Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 276:1659, s. 1029-1036
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Tidskriftsartikel (refereegranskat)abstract
- The natural reservoir of influenza A virus is waterfowl, particularly dabbling ducks (genus Anas). Although it has long been assumed that waterfowl are asymptomatic carriers of the virus, a recent study found that low-pathogenic avian influenza (LPAI) infection in Bewick's swans (Cygnus columbianus bewickii) negatively affected stopover time, body mass and feeding behaviour. In the present study, we investigated whether LPAI infection incurred ecological or physiological costs to migratory mallards (Anas platyrhynchos) in terms of body mass loss and staging time, and whether such costs could influence the likelihood for long-distance dispersal of the avian influenza virus by individual ducks. During the autumn migrations of 2002-2007, we collected faecal samples (n = 10 918) and biometric data from mallards captured and banded at Ottenby, a major staging site in a flyway connecting breeding and wintering areas of European waterfowl. Body mass was significantly lower in infected ducks than in uninfected ducks (mean difference almost 20 g over all groups), and the amount of virus shed by infected juveniles was negatively correlated with body mass. There was no general effect of infection on staging time, except for juveniles in September, in which birds that shed fewer viruses stayed shorter than birds that shed more viruses. LPAI infection did not affect speed or distance of subsequent migration. The data from recaptured individuals showed that the maximum duration of infection was on average 8.3 days (s.e. 0.5), with a mean minimum duration of virus shedding of only 3.1 days (s.e. 0.1). Shedding time decreased during the season, suggesting that mallards acquire transient immunity for LPAI infection. In conclusion, deteriorated body mass following infection was detected, but it remains to be seen whether this has more long-term fitness effects. The short virus shedding time suggests that individual mallards are less likely to spread the virus at continental or intercontinental scales.
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| 42. |
- Svärd, Anna, et al.
(författare)
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Antibodies against Porphyromonas gingivalis in serum and saliva and their association with rheumatoid arthritis and periodontitis. : Data from two rheumatoid arthritis cohorts in Sweden
- 2023
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Ingår i: Frontiers in Immunology. - : Frontiers Media SA. - 1664-3224. ; 14
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Tidskriftsartikel (refereegranskat)abstract
- Background: Periodontitis and oral pathogenic bacteria can contribute to the development of rheumatoid arthritis (RA). A connection between serum antibodies to Porphyromonas gingivalis (P. gingivalis) and RA has been established, but data on saliva antibodies to P. gingivalis in RA are lacking. We evaluated antibodies to P. gingivalis in serum and saliva in two Swedish RA studies as well as their association with RA, periodontitis, antibodies to citrullinated proteins (ACPA), and RA disease activity.Methods: The SARA (secretory antibodies in RA) study includes 196 patients with RA and 101 healthy controls. The Karlskrona RA study includes 132 patients with RA >= 61 years of age, who underwent dental examination. Serum Immunoglobulin G (IgG) and Immunoglobulin A (IgA) antibodies and saliva IgA antibodies to the P. gingivalis-specific Arg-specific gingipain B (RgpB) were measured in patients with RA and controls.Results: The level of saliva IgA anti-RgpB antibodies was significantly higher among patients with RA than among healthy controls in multivariate analysis adjusted for age, gender, smoking, and IgG ACPA (p = 0.022). Saliva IgA anti-RgpB antibodies were associated with RA disease activity in multivariate analysis (p = 0.036). Anti-RgpB antibodies were not associated with periodontitis or serum IgG ACPA.Conclusion: Patients with RA had higher levels of saliva IgA anti-RgpB antibodies than healthy controls. Saliva IgA anti-RgpB antibodies may be associated with RA disease activity but were not associated with periodontitis or serum IgG ACPA. Our results indicate a local production of IgA anti-RgpB in the salivary glands that is not accompanied by systemic antibody production.
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| 43. |
- Westergren, Albert, et al.
(författare)
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Measurement properties of the minimal insomnia symptom scale as insomnia screening tool for adults and the elderly
- 2015
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Ingår i: Sleep Medicine. - : Elsevier. - 1389-9457 .- 1878-5506. ; 16:3, s. 379-384
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Tidskriftsartikel (refereegranskat)abstract
- Background The psychometric properties of the three-item Minimal Insomnia Symptom Scale (MISS) were evaluated using the classical test theory. Different cut-offs for identifying insomnia were suggested in two age groups (≥6 and ≥7 among adult and elderly people, respectively). The aim of the present study was to test the measurement properties of the MISS using the Rasch measurement model, with special emphasis on differential item functioning by gender and age. Methods Cross-sectional MISS data from adult (age 20–64 years, n = 1075) and elderly (age 65+, n = 548) populations were analysed using the Rasch measurement model. Results Data generally met Rasch model requirements and the scale could separate between two distinct groups of people. Differential item functioning was found by age but not gender. The difference between the adult and elderly samples was lower for the originally recommended ≥6 points cut-off (0.09 logits) than for the ≥7 points cut-off (0.23 logits), but greater at the lower and higher ends of the scale. Conclusions This study provides general support for the measurement properties of the MISS. Caution should be exercised in comparing raw MISS scores between age groups, but applying a ≥6 cut-off appears to allow for valid comparisons between adults and the elderly regarding the presence of insomnia. Nevertheless, additional studies are needed to determine the clinically optimal cut-score for identification of insomnia.
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| 44. |
- Abrahamsson, Agneta, 1951-, et al.
(författare)
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Sense of coherence of reindeer herders and other Samis in comparison to other Swedish citizens
- 2013
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Ingår i: International Journal of Circumpolar Health. - : Taylor & Francis. - 2242-3982 .- 2242-3982 .- 1239-9736. ; 72, s. 20633-
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Samis are indigenous people in north Europe. In the territory called Sápmi (Lapland), reindeer herding is the traditional base for the Sami economy. The relation between living conditions and positive health of the Swedish Samis has been sparsely studied. As health is closely linked to sense of coherence (SOC), an understanding of the background factors to SOC may contribute knowledge that might be useful in promoting living conditions and health.METHODS: The study examines relations between the level of SOC and background factors from surveys in a Sami population (n=613) in comparison to a non-Sami population (n=525) in Sweden, and in comparison between 2 subsamples of Samis, that is, herders and non-herders.RESULTS: There are more similarities than differences between the Sami and non-Sami populations. However, dividing the Sami population, reindeer herders had significantly lower SOC, and in specific the subcomponent manageability, that is, less ability to use available resources to meet different demands in life, compared to non-herders.CONCLUSIONS: In addition to age and health, predictors of SOC are related to the life form of reindeer husbandry and the belonging to the herding community.
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| 45. |
- Alden-Joyce, Tara, et al.
(författare)
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Tanzanian Nursing Students' Experiences of Student Exchange in Sweden : A Qualitative Case Study
- 2023
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Ingår i: Sage Open Nursing. - : Sage Publications. - 2377-9608. ; 9
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Tidskriftsartikel (refereegranskat)abstract
- IntroductionNeeds within healthcare are changing and nurses require new skills and knowledge in global nursing. Student exchange programs in global contexts provide an opportunity to develop the necessary skills. ObjectiveThe aim of this study was to describe Tanzanian nursing students' experiences of student exchange in Sweden. MethodsA qualitative design was used for this empirical study. Semistructured interviews were conducted with six Tanzanian nursing students who had participated in student exchange in Sweden. The participants were recruited by purposeful sampling. Inductive reasoning and qualitative content analysis were applied. ResultsFour main themes were formed; new roles, experience a new culture, establish new competencies, and global work ambitions. The findings revealed that the students experienced new approaches in Sweden, giving them new competencies and understanding. Furthermore, they increased their global perspectives on nursing and interest in working with global health issues, but they also experienced challenges in the new environment. ConclusionThe present study showed that Tanzanian nursing students benefitted from their student exchange, both personally, as well as for their future careers as nurses. More research is needed in examining nursing students from low-income countries participating in student exchange in high-income countries.
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| 46. |
- Bolton, Tom, et al.
(författare)
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On the security and privacy challenges of virtual assistants
- 2021
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Ingår i: Sensors. - : MDPI. - 1424-8220. ; 21:7, s. 1-19
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Tidskriftsartikel (refereegranskat)abstract
- Since the purchase of Siri by Apple, and its release with the iPhone 4S in 2011, virtual assistants (VAs) have grown in number and popularity. The sophisticated natural language processing and speech recognition employed by VAs enables users to interact with them conversationally, almost as they would with another human. To service user voice requests, VAs transmit large amounts of data to their vendors; these data are processed and stored in the Cloud. The potential data security and privacy issues involved in this process provided the motivation to examine the current state of the art in VA research. In this study, we identify peer-reviewed literature that focuses on security and privacy concerns surrounding these assistants, including current trends in addressing how voice assistants are vulnerable to malicious attacks and worries that the VA is recording without the user’s knowledge or consent. The findings show that not only are these worries manifold, but there is a gap in the current state of the art, and no current literature reviews on the topic exist. This review sheds light on future research directions, such as providing solutions to perform voice authentication without an external device, and the compliance of VAs with privacy regulations.
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| 47. |
- Collin, Sven-Olof, et al.
(författare)
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Turnover and heterogeneity in top management networks : a demographic analysis of two Swedish business groups
- 2008
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Ingår i: International Journal of Business Science and Applied Management. - Newcastle upon Tyne, UK : International Journal of Business Science and Applied Management. - 1753-0296. ; 3:3, s. 31-55
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Tidskriftsartikel (refereegranskat)abstract
- A theory based on the demography of top management teams is used to explain membership turnover in two Swedish business groups, network analysis being used to define group membership. The results suggest these business groups possess a combination of financial and industrial experience as a group resource and the socialising strategy of control as a force counteracting the conflict-producing force of heterogeneity. An organisational demographic perspective focusing on opposing forces of heterogeneity and homogeneity is developed. It is shown that the perspective can be applied both to formal organisations and to informal ones such as networks.
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| 48. |
- Edberg, Anna-Karin, 1961-, et al.
(författare)
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Introduktion
- 2013
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Ingår i: Omvårdnad på avancerad nivå. - Lund : Studentlitteratur. - 9789144071459 ; , s. 15-27, s. 25-30, s. 9-18, s. 7-11
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 49. |
- Elmberg, Johan, 1960-, et al.
(författare)
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Potential disease transmission from wild geese and swans to livestock, poultry and humans : a review of the scientific literature from a One Health perspective
- 2017
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Ingår i: Infection Ecology & Epidemiology. - : Taylor & Francis Open: Creative Commons Attribution Non-Commercial / Co-Action Publishing. - 2000-8686 .- 2000-8686. ; 7:1
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Tidskriftsartikel (refereegranskat)abstract
- There are more herbivorous waterfowl (swans and geese) close to humans, livestock and poultry than ever before. This creates widespread conflict with agriculture and other human interests, but also debate about the role of swans and geese as potential vectors of disease of relevance for human and animal health. Using a One Health perspective, we provide the first comprehensive review of the scientific literature about the most relevant viral, bacterial, and unicellular pathogens occurring in wild geese and swans. Research thus far suggests that these birds may play a role in transmission of avian influenza virus, Salmonella, Campylobacter, and antibiotic resistance. On the other hand, at present there is no evidence that geese and swans play a role in transmission of Newcastle disease, duck plague, West Nile virus, Vibrio, Yersinia, Clostridium, Chlamydophila, and Borrelia. Finally, based on present knowledge it is not possible to say if geese and swans play a role in transmission of Escherichia coli, Pasteurella, Helicobacter, Brachyspira, Cryptosporidium, Giardia, and Microsporidia. This is largely due to changes in classification and taxonomy, rapid development of identification methods and lack of knowledge about host specificity. Previous research tends to overrate the role of geese and swans as disease vectors; we do not find any evidence that they are significant transmitters to humans or livestock of any of the pathogens considered in this review. Nevertheless, it is wise to keep poultry and livestock separated from small volume waters used by many wild waterfowl, but there is no need to discourage livestock grazing in nature reserves or pastures where geese and swans are present. Under some circumstances it is warranted to discourage swans and geese from using wastewater ponds, drinking water reservoirs, and public beaches. Intensified screening of swans and geese for AIV, West Nile virus and anatid herpesvirus is warranted.
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| 50. |
- Hedov, Gerth, et al.
(författare)
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First information and support provided to parents of children with Down syndrome in Sweden : clinical goals and parental experiences
- 2002
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Ingår i: Acta Paediatrica. - 0803-5253 .- 1651-2227. ; 91:12, s. 1344-1349
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Tidskriftsartikel (refereegranskat)abstract
- When parents are informed that their newborn child has Down syndrome (DS), they often respond with a traumatic crisis reaction. The aims of this study were to assess the clinical goals regarding the first information and support provided to parents of newborn children with DS at the Swedish paediatric departments, and to analyse the parents' experiences of how they were first informed and treated. Data were collected during 1992-1993 from all of the 51 departments of paediatrics in Sweden. Information on the parents' experiences, collected retrospectively in 1996, was based on recollection by 165 parents of 86 children with DS born between 1989 and 1993 at 10 of the paediatric departments considered representative for Sweden. Seventy-five percent of the families were informed about the diagnosis within 24 h post partum. Some parents felt they were informed too late, and a few parents that they were told too soon. Half of the parents were satisfied with the timing. About 70% of the parents considered the information insufficient and 60% felt that they had been unsupported. Seventy percent would have liked more frequent information. Parental criticisms concerning the way in which the information was provided were that they received too much negative information about DS and that both the communication skills and the basic knowledge of DS on the part of the professionals could have been better. CONCLUSION: The Swedish paediatric departments fall short of their reported strong clinical goals regarding the initial information in Sweden, and improvements in this area are desirable.
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