| 1. |
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VTI:s och KFB:s forskardagar : del 1
- 1994
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Proceedings (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- Rapportframställning av föredrag vid forskardagarna 1994-01-21--13 beträffande:Trafik och miljötätortstrafikhöghastighetstågtransporter och Europamark och grundläggning i infrastrukturenframtida distributionsstrukturer i export- och importflödetvinterdäckkollektivtrafik och bebyggelseplaneringbansystem för tätortflyget
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| 2. |
- Andersson, Henrik
(författare)
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An implicit formulation of the Bodner-Partom constitutive equations
- 2003
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Ingår i: Computers & Structures. - 0045-7949. ; 81:13, s. 1405-1414
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Tidskriftsartikel (refereegranskat)abstract
- The framework for an implicit implementation of the Bodner-Partom material model is presented. All equations needed for using a Newton-Raphson algorithm to solve the stress and hardening equations at the integration points are derived. In addition, the algorithmic tangential stiffness tensor, ensuring quadratic convergence in the global loop is presented.
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| 3. |
- Asp, Ann, et al.
(författare)
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Transfer to adult care : experiences of young adults with congenital heart disease
- 2015
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Ingår i: Journal of Pediatric Nursing. - : Elsevier. - 0882-5963 .- 1532-8449. ; 30:5, s. e3-e10
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Tidskriftsartikel (refereegranskat)abstract
- Mer än 90 % av barn med medfödda hjärtfel överlever upp i vuxen ålder tack vare utveckling av hjärtkirurgi och medicinsk behandling. Intervjuer med 16 unga vuxna med medfödda hjärtfel i syfte att undersöka deras upplevelser av hur överföringen från barnsjukvård till vuxenvård genomfördes. Analysen identifierade fem tema: Att känna trygghet i överföringen, Att känna tillit till vården, Att förväntas bli delaktig i vården, Att ta över ansvaret för sin hälsa är en process, och Att sakna kunskap leder till osäkerhet. Sammanfattningsvis, en strukturerad och gradvis överföring är nödvändig för att få informanterna att axla ansvaret för sin egenvård.
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| 4. |
- Bria, Aurelian
(författare)
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Hybrid cellular-broadcasting infrastructure systems : radio resource management issues
- 2006
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis addresses the problem of low-cost multicast delivery of multimedia content in future mobile networks. The trend towards reuse of existing infrastructure for cellular and broadcasting for building new systems is challenged, with respect to the opportunities for low cost service provision and scalable deployment of networks. The studies outline significant potential of hybrid cellular-broadcasting infrastructure to deliver lower-cost mobile multimedia, compared to conventional telecom or broadcasting systems. Even with simple interworking techniques the achievable cost savings can be significant, at least under some specific settings. The work starts with a foresight study shaped around four scenarios of the future, and continues with the introduction of a high-level framework for radio resource management in Ambient Networks. Two approaches on the hybrid system architecture are considered. The first one assumes different degrees of interworking between conventional cellular and broadcasting systems, in single and multi-operator environments. Second, is a broadcast only system where cellular sites are used for synchronized, complementary transmitters for the broadcasting site. In the first approach, the key issue is the multi-radio resource management, which is strongly affected by the degree of integration between the two networks. Two case studies deal with the problem of delivering, for lowest cost, a data item to a certain number of recipient users. A flexible broadcasting air interface, which offers several transmission data rates that can be dynamically changed, is demonstrated to significantly increase cost efficiency under certain conditions. An interesting result is that real-time monitoring of the user reception conditions is not needed, at least when multicast group is large. This indicates a high degree of integration between cellular and broadcasting networks may not by generally justified by visible cost savings. Scalability of the hybrid infrastructure deployment is the main topic in the second approach. For a DVB-H type of network, the numerical evaluations show that achievement of economies of scale while increasing network capacity and coverage, by employing higher modulation and coding rate or installing new transmission sites, is difficult. Therefore, a technique based on application-layer forward error correction with Raptor codingA is suggested for enabling a flexible trading between system capacity, perceived coverage and delay, in the case of mobile users.
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| 5. |
- Bränström Öhman, Annelie, 1960-
(författare)
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Samtidens soundtrack
- 2011
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Ingår i: Västerbottens-Kuriren. - Umeå : Västerbottenskurirens Aktiebolag. - 1104-0246. ; 10.13:239, s. 31-31
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Recension (populärvet., debatt m.m.)
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| 6. |
- Chavarria, LA, et al.
(författare)
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Intima media thickness in children undergoing dialysis
- 2012
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Ingår i: Pediatric nephrology (Berlin, Germany). - : Springer Science and Business Media LLC. - 1432-198X .- 0931-041X. ; 27:9, s. 1557-1564
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Tidskriftsartikel (refereegranskat)
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| 7. |
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| 8. |
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| 9. |
- Sandqvist, Anna, et al.
(författare)
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Risk stratification in chronic thromboembolic pulmonary hypertension predicts survival
- 2021
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Ingår i: Scandinavian Cardiovascular Journal. - : Taylor & Francis Group. - 1401-7431 .- 1651-2006. ; 55:1, s. 43-49
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To investigate if the pulmonary arterial hypertension (PAH) risk assessment tool presented in the 2015 ESC/ERS guidelines is valid for patients with chronic thromboembolic pulmonary hypertension (CTEPH) when taking pulmonary endarterectomy (PEA) into account. Design. Incident CTEPH patients registered in the Swedish PAH Registry (SPAHR) between 2008 and 2016 were included. Risk stratification performed at baseline and follow-up classified the patients as low-, intermediate-, or high-risk using the proposed ESC/ERS risk algorithm. Results: There were 250 CTEPH patients with median age (interquartile range) 70 (14) years, and 53% were male. Thirty-two percent underwent PEA within 5 (6) months. In a multivariable model adjusting for age, sex, and pharmacological treatment, patients with intermediate-risk or high-risk profiles at baseline displayed an increased mortality risk (Hazard Ratio [95% confidence interval]: 1.64 [0.69–3.90] and 5.39 [2.13–13.59], respectively) compared to those with a low-risk profile, whereas PEA was associated with better survival (0.38 [0.18–0.82]). Similar impact of risk profile and PEA was seen at follow-up.Conclusion: The ESC/ERS risk assessment tool identifies CTEPH patients with reduced survival. Furthermore, PEA improves survival markedly independently of risk group and age.
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