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Sökning: LAR1:su > Göteborgs universitet

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1.
  • Aaro Jonsson, Catherine C., et al. (författare)
  • Variability in quality of life 13 years after traumatic brain injury in childhood
  • 2014
  • Ingår i: International Journal of Rehabilitation Research. - : Wolters Kluwer. - 0342-5282 .- 1473-5660. ; 37:4, s. 317-322
  • Tidskriftsartikel (refereegranskat)abstract
    • With the aim of describing variability in the long-term outcome of quality of life after neurosurgically treated pediatric traumatic brain injury, mostly self-reports of 21 individuals with mild or moderate/severe injury were gathered using Mayo-Portland Adaptability Inventory in telephone interviews 13 years aftyer injury. A majority of the participants reported brain injury-related problems. The median outcome on Mayo-Portland Adaptability Inventory was mild to moderate limitations. The variation within the moderate/severe group varied between relatively good outcome and moderate/severe limitations. Concentration, irritability, fatigue, and transportation were reported as the most problematic areas, whereas self-care was reported as well functioning. Societal participation appeared to be the best functional domain in this Swedish study. Examples of individual reports of the life-situation at various outcome levels were provided. Variability in outcome is large within severity groups, and research may gain by addressing both outcomes of the individuals and groups. Objective questions of outcome should be accompanied by questions of actual functioning in everyday life. To ensure long-term support for quality of life for those with remaining dysfunction after pediatric traumatic brain injury, healthcare systems should implement systematic routines for referral to rehabilitation and support.
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2.
  • Aaro Jonsson, Catherine, 1963-, et al. (författare)
  • Long-term cognitive outcome after neurosurgically treated childhood traumatic brain injury
  • 2009
  • Ingår i: Brain Injury. - : Taylor & Francis. - 0269-9052 .- 1362-301X. ; 23:13-14, s. 1008-1016
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To explore the cognitive long term outcome of two cohorts of patients neurosurgically treated for childhood traumatic brain injury (CTBI), either in 1987-1991 according to an older concept, or 1997-2001 with a stronger emphasis on volume targeted interventions. Research design and methods: Participants in the two cohorts were subject to an extensive neuropsychological assessment, 13.2 and 6.1 years post injury, respectively. In a between group design, assessment results of the two cohorts, n 18 and n 23, were compared to each other and to controls. Data were analyzed with multivariate analyses of variance. Results: Long-term cognitive deficits for both groups of similar magnitude and character were observed in both groups. Abilities were especially low regarding executive and memory function and verbal IQ. The cognitive results are discussed in terms of  vulnerability of verbal functions and decreased executive control over memory-functions. Conclusions: There is a definite need for long term follow up of cognitive deficits after neurosurgically treated CTBI, also with the newer neurosurgical concept. Verbal learning and the executive control over memory functions should be addressed with interventions aimed at restoration, coping and compensation.
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3.
  • Aaro Jonsson, Catherine, 1963-, et al. (författare)
  • Neuropsychological progress during 14 years after severe traumatic brain injury in childhood and adolescence
  • 2004
  • Ingår i: Brain Inj. - : Informa UK Limited. - 0269-9052 .- 1362-301X. ; 18:9, s. 921-34
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To investigate the impact of time since injury on neuropsychological and psychosocial outcome after serious TBI in childhood or adolescence. METHODS: The subjects were eight patients with serious TBI sustained at a mean age of 14 years who had been assessed neuropsychologically at 1, 7 and 14 years after TBI. A retrospective longitudinal design was chosen to describe the development in six neuropsychological domains on the basis of the assessments. Psychosocial data were gathered from clinical knowledge and a semi-structured interview 14 years after TBI. RESULTS: Performance of verbal IQ shows a declining trend over the three assessments, that the performance of attention and working memory is low and that verbal learning is the cognitive domain which exhibits the largest impairments. The main psychosocial result is that three of the eight subjects went from a school situation with no adjustments to adult life with early retirement. CONCLUSIONS: Time since insult is an important factor when assessing outcome after TBI in childhood and adolescence and that assessment of final outcome should not be done before adulthood.
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5.
  • Actes du XVIIIe congrès des romanistes scandinaves /Actas del XVIII congreso de romanistas escandinavos
  • 2012
  • Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
    • These papers were originally presented at the XVIIIe conference on Romance language research in Scandinavia that took place at the University of Gothenburg August 9–12, 2011, bringing together researchers from Danish, Finnish, Icelandic, Norwegian, Baltic, and Swedish universities. The subjects approached cover a broad range of areas within linguistics, translation studies, literary studies and didactics. The following specialists were invited as key-note speakers: Manuel Alberca, Philippe Gasparini, Zlatka Guentchéva, and Martin Maiden.
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6.
  • Adam, Birgit, et al. (författare)
  • N2-fixation, ammonium release and N-transfer to the microbial and classical food web within a plankton community
  • 2016
  • Ingår i: The ISME Journal. - : Springer Science and Business Media LLC. - 1751-7362 .- 1751-7370. ; 10:2, s. 450-459
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigated the role of N2-fixation by the colony-forming cyanobacterium, Aphanizomenon spp., for the plankton community and N-budget of the N-limited Baltic Sea during summer by using stable isotope tracers combined with novel secondary ion mass spectrometry, conventional mass spectrometry and nutrient analysis. When incubated with 15N2, Aphanizomenon spp. showed a strong 15N-enrichment implying substantial 15N2-fixation. Intriguingly, Aphanizomenon did not assimilate tracers of 15NH4+ from the surrounding water. These findings are in line with model calculations that confirmed a negligible N-source by diffusion-limited NH4+ fluxes to Aphanizomenon colonies at low bulk concentrations (<250 nm) as compared with N2-fixation within colonies. No N2-fixation was detected in autotrophic microorganisms <5 mum, which relied on NH4+ uptake from the surrounding water. Aphanizomenon released about 50% of its newly fixed N2 as NH4+. However, NH4+ did not accumulate in the water but was transferred to heterotrophic and autotrophic microorganisms as well as to diatoms (Chaetoceros sp.) and copepods with a turnover time of ~5 h. We provide direct quantitative evidence that colony-forming Aphanizomenon releases about half of its recently fixed N2 as NH4+, which is transferred to the prokaryotic and eukaryotic plankton forming the basis of the food web in the plankton community. Transfer of newly fixed nitrogen to diatoms and copepods furthermore implies a fast export to shallow sediments via fast-sinking fecal pellets and aggregates. Hence, N2-fixing colony-forming cyanobacteria can have profound impact on ecosystem productivity and biogeochemical processes at shorter time scales (hours to days) than previously thought.
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7.
  • Adamczyk, B., et al. (författare)
  • Plant roots increase both decomposition and stable organic matter formation in boreal forest soil
  • 2019
  • Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 10
  • Tidskriftsartikel (refereegranskat)abstract
    • Boreal forests are ecosystems with low nitrogen (N) availability that store globally significant amounts of carbon (C), mainly in plant biomass and soil organic matter (SOM). Although crucial for future climate change predictions, the mechanisms controlling boreal C and N pools are not well understood. Here, using a three-year field experiment, we compare SOM decomposition and stabilization in the presence of roots, with exclusion of roots but presence of fungal hyphae and with exclusion of both roots and fungal hyphae. Roots accelerate SOM decomposition compared to the root exclusion treatments, but also promote a different soil N economy with higher concentrations of organic soil N compared to inorganic soil N accompanied with the build-up of stable SOM-N. In contrast, root exclusion leads to an inorganic soil N economy (i.e., high level of inorganic N) with reduced stable SOM-N buildup. Based on our findings, we provide a framework on how plant roots affect SOM decomposition and stabilization.
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8.
  • Adermon, Adrian, 1981-, et al. (författare)
  • Dynastic Human Capital, Inequality, and Intergenerational Mobility
  • 2021
  • Ingår i: American Economic Review. - : American Economic Association. - 0002-8282 .- 1944-7981. ; 111:5, s. 1523-1548
  • Tidskriftsartikel (refereegranskat)abstract
    • We estimate long-run intergenerational persistence in human capital using information on outcomes for the extended family: the dynasty. A dataset including the entire Swedish population, linking four generations, allows us to identify parents' siblings and cousins, their spouses, and spouses' siblings. Using various human capital measures, we show that traditional parent-child estimates underestimate long-run intergenerational persistence by at least one-third. By adding outcomes for more distant ancestors, we show that almost all of the persistence is captured by the parental generation. Data on adoptees show that at least one-third of -long-term persistence is attributed to environmental factors.
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9.
  • Adjei, Nicholas Kofi, et al. (författare)
  • Impact of poverty and adversity on perceived family support in adolescence: findings from the UK Millennium Cohort Study
  • 2024
  • Ingår i: EUROPEAN CHILD & ADOLESCENT PSYCHIATRY. - 1018-8827 .- 1435-165X.
  • Tidskriftsartikel (refereegranskat)abstract
    • Emotional support from family members may have an important effect on adolescent health outcomes, and has been identified as a target for policy to protect against the impacts of poverty and other early life adversities. However, few studies have assessed the extent to which poverty and adversity themselves influence the nature of emotional support that parents can provide to adolescents. We, therefore, aimed to investigate the impact of trajectories of income poverty and family adversities, including parental mental ill health, alcohol misuse and domestic violence across childhood developmental stages on young people's relationships with their families and perceived emotional support received. We analysed longitudinal data on 10,976 children from the nationally representative UK Millennium Cohort study. Exposure trajectories of poverty and family adversities were characterised using group-based multi-trajectory models (age 9 months-14 years). The outcomes were perceived emotional support and quality of family relationships, measured by the three-item Short Social Provisions Scale (SPS-3) and levels of parent-adolescent closeness and conflict, measured at age 14. ORs and 95% CIs were estimated using multivariable logistic regression models, adjusting for potential confounding factors. At age 14, the overall prevalence of low perceived emotional support was 13% (95% CI: 12, 14). Children of mothers with lower socioeconomic status (SES) were more likely to report low emotional support, with a clear social gradient (education-degree plus: 10.3% vs. no qualifications: 15.4%). Compared with children exposed to low levels of poverty and adversity, children in the persistent adversity trajectory groups experienced higher odds of low emotional support and low-quality parent-adolescent relationship; those exposed to both persistent poverty and poor parental mental health were particularly at increased risk of experiencing poor family relationships and low perceived emotional support (adjusted odds ratio 2 center dot 2; 95% CI 1 center dot 7-2 center dot 9). Low perceived emotional support and poor family relationships in adolescence are more prevalent among socially disadvantaged children and adolescents and those experiencing social adversity. Policies to improve levels of family support for UK adolescents should focus on improving modifiable determinants such as child poverty and family mental health.
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10.
  • Afshari, Bahareh, 1981, et al. (författare)
  • Cyclic proofs for the first-order mu-calculus
  • 2024
  • Ingår i: Logic Journal of the IGPL. - : Oxford University Press (OUP). - 1367-0751 .- 1368-9894. ; 32:1, s. 1-34
  • Tidskriftsartikel (refereegranskat)abstract
    • We introduce a path-based cyclic proof system for first-order mu-calculus, the extension of first-order logic by second-order quantifiers for least and greatest fixed points of definable monotone functions. We prove soundness of the system and demonstrate it to be as expressive as the known trace-based cyclic systems of Dam and Sprenger. Furthermore, we establish cut-free completeness of our system for the fragment corresponding to the modal mu-calculus.
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